TELECORP PCS INC
S-4, 1999-06-22
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<PAGE>

    As filed with the Securities and Exchange Commission on June 22, 1999
                                                Registration No. 333-[_________]
- --------------------------------------------------------------------------------


                      SECURITIES AND EXCHANGE COMMISSION
                             Washington, DC 20549

                                ______________

                                   FORM S-4
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933

                                ______________

                              TELECORP PCS, INC.
            (Exact name of Registrant as specified in its charter)

<TABLE>
<S>                                              <C>                                       <C>
             Delaware                                        4812                               54-1872248
   (State or other jurisdiction                  (Primary Standard Industrial                (I.R.S. Employer
of incorporation or organization)                 Classification Code Number)              Identification No.)
</TABLE>

                                ______________

                              1010 N. Glebe Road
                                   Suite 800
                              Arlington, VA 22201
                                (703) 236-1100

  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)

                                ______________

                           Thomas H. Sullivan, P.C.
             Executive Vice President and Chief Financial Officer
                              TeleCorp PCS, Inc.
                         1010 N. Glebe Road, Suite 800
                              Arlington, VA 22201
                                (703) 236-1122

(Name, address, including zip code, and telephone number, including area code,
                             of agent for service)

                                ______________

                                  Copies to:
                             Dov T. Schwell, Esq.
                            McDermott, Will & Emery
                             50 Rockefeller Plaza
                              New York, NY 10020
                                (212) 547-5400

     Approximate date of commencement of proposed sale to the public: As soon as
practicable after the effective date of this Registration Statement.

     If the securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box. [_]

     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [_]

     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
 Title of Each Class of
 Securities to be                                   Proposed Maximum Offering     Proposed Maximum Aggregate           Amount of
 Registered             Amount to be Registered           Price Per Unit                Offering Price             Registration Fee
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                     <C>                         <C>                           <C>                              <C>
 11 5/8% Senior               $575,000,000                    56.98%                     $327,635,000                 $91,082.53
 Subordinated Discount
 Notes due 2009
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

     The proposed maximum offering price per unit and the proposed maximum
aggregate offering price are estimated solely for the purpose of calculating the
registration fee.
                      ___________________________________

     The Registrant hereby amends this Registration Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a further amendment which specifically states that this Registration
Statement shall thereafter become effective in accordance with Section 8(a) of
the Securities Act of 1933 or until this Registration Statement shall become
effective on such date as the Securities and Exchange Commission, acting
pursuant to said Section 8(a), may determine.
<PAGE>

                                EXPLANATORY NOTE

     This registration statement contains a prospectus relating to the offer
(the "Exchange Offer") for all outstanding 11 5/8% Senior Subordinated Discount
Notes due 2009 of TeleCorp PCS, Inc. in exchange for 11 5/8% Senior Subordinated
Discount Notes due 2009.  In addition, this registration statement contains a
prospectus relating to certain market-making activities with respect to the
Exchange Notes which may, from time to time, be carried out by Chase Securities
Inc.  The two prospectuses will be identical in all material respects except for
the front cover page, the Plan of Distribution section and the back cover page
and except for the fact that the market-making prospectus will not contain the
information in the Prospectus Summary relating to the Exchange Offer, the
information under the caption "The Exchange Offer" and "Certain U.S. Federal Tax
Considerations--Exchange Offer" will be deleted and certain conforming changes
will be made to delete references to the Exchange Offer.  The prospectus for the
Exchange Offer follows immediately after this Explanatory Note.  Following such
prospectus are the form of alternative cover page, Plan of Distribution section
and back cover page for the market-making prospectus and alternative pages,
sections and provisions covering conforming changes.

                                     -ii-
<PAGE>

  THIS PROSPECTUS, DATED JUNE 22, 1999, IS SUBJECT TO COMPLETION AND AMENDMENT

PROSPECTUS
                               TELECORP PCS, INC.
           OFFER TO EXCHANGE ALL OF OUR OUTSTANDING AND UNREGISTERED
              11 5/8% SENIOR SUBORDINATED DISCOUNT NOTES DUE 2009
                               FOR OUR REGISTERED
              11 5/8% SENIOR SUBORDINATED DISCOUNT NOTES DUE 2009

  We hereby offer upon the terms and conditions described in this prospectus and
the accompanying Letter of Transmittal (which together constitute the "Exchange
Offer") to exchange all of our outstanding and unregistered 11 5/8% Senior
Subordinated Discount Notes due 2009 ("Old Notes") for our registered 11 5/8%
Senior Subordinated Discount Notes due 2009 ("Exchange Notes").  The Old Notes
were issued on April 23, 1999 and, as of the date of this prospectus, an
aggregate principal amount at maturity of $575.0 million is outstanding.  The
terms of the Exchange Notes are substantially the same as the terms of the Old
Notes except that the Exchange Notes will be registered under the Securities Act
of 1933, as amended, and the Exchange Notes will not contain certain transfer
restrictions, registration rights and terms providing for an increase in the
interest rate on the Old Notes under certain events relating to registration of
the Exchange Notes.  The Exchange Notes will evidence the same debt as the Old
Notes and will be issued under, and entitled to the same benefits of, the
indenture governing the Old Notes.  We are making the Exchange Offer in order to
satisfy certain contractual obligations.  The Exchange Notes and the Old Notes
are sometimes collectively referred to as the "Notes."

     YOU SHOULD CAREFULLY REVIEW THE RISK FACTORS BEGINNING ON PAGE 13 OF THIS
PROSPECTUS.

  Our offer to exchange the Old Notes for Exchange Notes will be open until 5:00
p.m., New York City time, on           , 1999, unless we extend the offer.

  You should carefully review the procedures for tendering the Old Notes
beginning on page 51 of this prospectus.

  If you fail to tender your Old Notes, you will continue to hold unregistered
securities and your ability to transfer them could be adversely affected.

                      INFORMATION ABOUT THE EXCHANGE NOTES

Maturity                                    Change of Control
 .  The Notes will mature on April 15,       .  If we experience a change of
   2009, unless previously redeemed.           control, you may require us to
                                               purchase the Notes.

Interest and Accretion                      Security and Ranking
 .  We issued the Old Notes at a             .  The Notes are not secured by any
   discount to their principal                 collateral.
   amount at maturity.
                                            .  The Notes are subordinate to all
 .  The Notes will accrete in value             of our existing and future senior
   until April 15, 2004 at a                   debt.
   rate of 11 5/8% compounded semi-         .  The Notes rank equally with all
   annually.                                   of our other senior
                                               subordinated debt.
 .  We will pay interest semiannually on
   April 15 and October 15 of each year     .  The Notes rank senior to all of
   beginning October 15, 2004.                 our existing and future
                                               subordinated debt.
Redemption
 .  We may redeem some or all of the         Guarantees
   Notes at any time after                  .  If we fail to make payments on
   April 15, 2004.                             the Notes, our guarantor
                                               subsidiaries must make them
 .  We also may redeem up to 35% of             instead.  These guaranties will
   the aggregate principal amount              be senior subordinated
   at maturity of the Notes using              obligations of our guarantor
   the proceeds of certain equity              subsidiaries. Not all of our
   offerings completed before                  subsidiaries will be
   April 15, 2002.                             guaranteeing our payments on the
 .  See page 82 for the redemption prices.      Notes.

PORTAL
 .  The Old Notes have been designated for trading in the
   PORTAL market.

Neither the SEC nor any state securities commission has approved or disapproved
of the Notes, or determined that this prospectus is truthful or complete.  Any
representation to the contrary is a criminal offense.

              The date of this prospectus is             , 1999.

                                     -iii-
<PAGE>

  We will not receive any proceeds from the Exchange Offer.  We will bear the
expenses of the Exchange Offer.  We are not using any underwriters in connection
with the Exchange Offer.  See "The Exchange Offer."

  Each broker-dealer that receives Exchange Notes for its own account in the
Exchange Offer must acknowledge that it will deliver a prospectus in connection
with any resale of such Exchange Notes.  The Letter of Transmittal states that
by so acknowledging and by delivering a prospectus, a broker-dealer will not be
deemed to admit that it is an "underwriter" within the meaning of the Securities
Act.  A broker-dealer may use this prospectus, as it may be amended or
supplemented from time to time, in connection with resales of Exchange Notes
received in exchange for Old Notes where such broker-dealer acquired such Old
Notes as a result of market-making activities or other trading activities.  For
a period of 180 days after the expiration date of the Exchange Offer, we will
make this prospectus available to any broker-dealer for use in connection with
any such resale.  See "Plan of Distribution."

  This prospectus incorporates important business and financial information
about us that we have not included in or delivered with the prospectus.  This
information is free, and you may write to or call us to obtain this information.
Contact us at:  TeleCorp PCS, Inc., 1010 N. Glebe Road, Suite 800, Arlington, VA
22201; telephone (703) 236-1100; Attention:  Thomas H. Sullivan.  To timely
deliver such information to you, we much receive your request no later than five
business days before you must decide whether to exchange the Notes, which is
     , 1999.

               SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

  All statements contained in this prospectus, as well as statements made in
press releases and oral statements that may be made by us or any of our
officers, directors or employees acting on our behalf, that are not statements
of historical fact, including, but not limited to, statements regarding our
current business strategy, future operations, technical capabilities,
construction plan and schedule, commercial operations schedule, funding needs,
prospective acquisitions or joint ventures, financing sources, pricing, future
regulatory approvals, markets, size of markets for wireless communications
services, financial position, estimated revenues, projected costs, prospects,
plans and objectives of management, as well as information concerning expected
actions of third parties, such as equipment suppliers, service providers and
roaming partners, and expected characteristics of competing systems, are based
upon current expectations and constitute "forward-looking statements" within the
meaning of the Private Securities Litigation Reform Act of 1995 and, as such,
speak only as of the date made. Such forward-looking statements involve known
and unknown risks, uncertainties and other factors that could cause our actual
results to be materially different from historical results or from any future
results expressed or implied by such forward-looking statements. Among the
factors that could cause actual results to differ materially are the following:
the availability of sufficient capital to finance our business plan on terms
satisfactory to us; competitive factors; changes in labor, equipment and capital
costs; our ability to obtain necessary regulatory approvals; technological
changes; our ability to comply with the indenture governing the Notes and the
terms of our other credit agreements; future acquisitions or strategic
partnerships; general business and economic conditions; and other factors
described under the heading "Risk Factors."  We caution readers not to place
undue reliance on any forward-looking statements. In addition to statements that
explicitly describe such risks and uncertainties, readers are urged to consider
statements that include the terms "believes," "belief," "expects," "plans,"
"anticipates," "intends," "estimates," "projects" or the like to be uncertain
and forward-looking.  We have no obligation to update or revise publicly any
forward-looking statements, whether as a result of new information, future
events or otherwise. Although we believe that the expectations underlying the
forward-looking statements are reasonable, we cannot assure that such
expectations will prove to be correct.

  We disclose important factors that could cause our actual results to differ
materially from our expectations ("cautionary statements") under the heading
"Risk Factors" and elsewhere in the prospectus.  The cautionary statements
qualify all forward-looking statements attributable to us or persons acting on
our behalf.

                                     -iv-
<PAGE>

                               PROSPECTUS SUMMARY

  The following summary highlights information contained elsewhere in this
prospectus. This summary may not contain all of the information that you should
consider before exchanging the Notes.  You should carefully read this entire
prospectus, including "Risk Factors," which describes important factors that
could affect us.  Unless otherwise specifically indicated, "TeleCorp," "we,"
"our" and "us" refer to TeleCorp PCS, Inc. and its consolidated subsidiaries,
references to "AT&T" mean AT&T Corp. and its direct and indirect wholly-owned
subsidiaries, references to the "FCC" mean the Federal Communications
Commission, references to "Pops" mean the Paul Kagan Associates, Inc. ("Kagan")
estimate of the 1998 population of a geographic area, and references to "PCS"
mean personal communications services.  Except as otherwise indicated, all
information in this prospectus gives effect to: the offering of the Old Notes
and the application of the net proceeds of such offering; the acquisition of
licenses and related assets in Puerto Rico and Louisiana and our receipt of
additional equity commitments in connection with such acquisition and the
funding of a portion of these commitments; the acquisition of additional
spectrum through participation in the FCC's reauction of C-Block licenses,
receipt of additional equity commitments in connection with such acquisition;
and the funding of a portion of these commitments (the "Transactions"). The FCC
declared us the highest bidder in the reauction on April 20, 1999. The offering
of the Old Notes occurred on April 23, 1999, the acquisition of certain licenses
in Puerto Rico occurred on May 25, 1999, and the acquisition of certain licenses
in Louisiana occurred on April 20, 1999, and June 2, 1999. The March 31, 1999
historical financial information in this prospectus does not reflect such
transactions. References to our domestic markets and Pops mean our markets and
Pops in the continental United States and not in Puerto Rico or the U.S. Virgin
Islands. We define certain other terms used in this prospectus in the Glossary
of Defined Terms.


                                    TeleCorp

  We intend to become a leading provider of digital wireless communications
services in targeted markets in the south-central and northeast United States
and in Puerto Rico. We are the exclusive provider of facilities-based mobile
wireless communications services for AT&T in our markets. TeleCorp was founded
in 1996 by Gerald T. Vento, Thomas H. Sullivan and certain private equity
investors to acquire strategic PCS licenses. In 1998, we entered into a venture
with AT&T in which AT&T contributed certain PCS licenses to us in exchange for
an equity interest in our company.  In addition, we have the right to use the
AT&T brand name and logo together with our own brand name and logo, giving equal
emphasis to each.  We are AT&T's preferred roaming partner in our markets and
receive preferred long distance rates from AT&T.

  Our PCS licenses cover approximately 16.0 million Pops, including those in the
major population centers of New Orleans and Baton Rouge, Louisiana, Memphis,
Tennessee, Little Rock, Arkansas, Manchester, Concord and Nashua, New Hampshire,
Worcester, Massachusetts and San Juan, Puerto Rico, as well as vacation
destinations such as Puerto Rico, the U.S. Virgin Islands, Cape Cod and Martha's
Vineyard.  Our markets have attractive economic and demographic characteristics
and are experiencing strong growth in use of wireless services. These markets,
which attract over 24 million visitors per year, are major roaming markets for
AT&T's customers.

  We have successfully launched our services in 14 markets, including all of our
major domestic markets. Our launched network covers approximately 40% of our
domestic licensed Pops, and by year-end 1999 we expect our network will cover
approximately 50% of our total licensed Pops.  We have a strong distribution
presence in our launched markets with 22 company-owned stores and more than 140
retail outlets where customers can buy our services. Additionally, we market our
services through business-to-business representatives, telemarketing and the
Internet.

  Our goal is to provide our customers with simple, easy-to-use wireless
services with coverage across the nation, superior call quality, personalized
customer care and competitive pricing in the markets we serve. We believe that,
as an AT&T affiliate, we will attract customers through the national brand and
coast-to-coast roaming provided by AT&T and its roaming partners. We have also
entered into an agreement with Triton PCS and Tritel Communications, two other
companies similarly affiliated with AT&T, to adopt SunCom as a common regional
brand that is co-branded with AT&T, giving equal emphasis to each. We and the
other SunCom companies are establishing the SunCom brand as a basis for building
a strong regional presence with a service area covering approximately 43.0
million Pops.

                                      -1-
<PAGE>

                          Strategic Alliance with AT&T

  To rapidly develop its PCS markets, AT&T has focused on constructing its own
network in selected cities and has entered into agreements with certain
independent wireless operators, such as us and other affiliates, to construct
and operate PCS networks in other markets.

  Our strategic alliance with AT&T provides us with many business, operational
and marketing advantages, including:

     . Brand. We market our wireless services to our customers giving equal
       emphasis to the SunCom and AT&T brand names and logos. Our market
       research indicates that association with the AT&T brand name
       significantly increases the likelihood that potential customers will
       purchase our wireless communications services.

     . Exclusivity. We are AT&T's exclusive provider of facilities-based mobile
       wireless communications services in our covered markets, and we
       participate with AT&T in national programs. We will also work with AT&T
       to provide wireless services bundled with other communications services,
       such as their P-Net (Personal Network) program. We have entered into an
       agreement whereby AT&T provides long distance services to us at preferred
       rates.

     . Roaming. We are the preferred roaming partner for AT&T's digital
       customers who roam into our covered markets. We expect to benefit from
       growth in roaming traffic as AT&T's customers take advantage of its
       "Digital One Rate" plans while traveling in our markets. AT&T has
       recently experienced significant growth in roaming traffic in our
       markets. With the use of advanced tri-mode handsets, which transition
       between PCS and cellular frequencies, our customers have access to coast-
       to-coast coverage through our agreements with AT&T, which provide us with
       the benefits of AT&T's roaming agreements with third party carriers.
       These agreements, together with AT&T's wireless network, cover
       approximately 98% of the U.S. population, including in-region roaming
       coverage in all of our covered markets. We believe this coast-to-coast
       coverage provides a significant advantage over PCS competitors in our
       markets, and it allows us to offer competitive pricing plans similar to
       AT&T's Digital One Rate plans.

     . Products and Services. We receive preferred terms on certain products and
       services, including handsets, infrastructure equipment and back office
       support from companies who provide these products and services to AT&T.
       For example, we have arrangements with Lucent Technologies, Ericsson and
       Nokia to supply us with handsets, mobile telephone equipment, software
       and services at preferred prices.

     . Marketing. We benefit from AT&T's nationwide marketing and advertising
       campaigns, including the success of AT&T's Digital One Rate plans in the
       marketing of our own national SunRate plans. In addition, we are working
       with AT&T's national sales representatives to jointly market our wireless
       services to AT&T corporate customers located in our markets.

                             Competitive Strengths

  In addition to the advantages provided by our strategic alliance with AT&T, we
have the following competitive strengths:

  Attractive Market Footprint.   Our markets have favorable demographic
characteristics for wireless communications services, and we believe our markets
are strategically important to AT&T's nationwide footprint.

     . Our markets include major population and business centers and vacation
       destinations.

     . We believe our markets, along with those of the other SunCom companies,
       are important to AT&T's national wireless strategy, particularly the
       success of its Digital One Rate plans, because they represent significant
       AT&T roaming markets.

     . According to Kagan, the average population density in our markets is
       approximately 38% above the national average. Relatively high population
       density allows us to cover more people with a lower level of network
       infrastructure investment.

                                      -2-
<PAGE>

  Active Commercial Operations.  Since late December 1998, we have successfully
launched our services in 14 of our markets, including all of our major domestic
markets.

     . We cover approximately 4.7 million Pops in our launched markets, which
       represent approximately 40% of our licensed domestic Pops.

     . We have 22 company-owned stores and over 140 retail outlets where
       customers can buy our services, such as Office Depot, Staples, Best Buy
       and Office Max.

     . We have established the SunCom brand name and logo which we use with
       equal emphasis with the AT&T brand name and logo in our marketing
       efforts. We and the other SunCom companies are reinforcing SunCom as a
       strong local brand with television, radio, and print advertisements in
       all our launched markets.

     . We developed our marketing strategy based upon extensive research in our
       markets and created service packages designed to meet prospective
       customers' needs. We offer easy-to-understand rate plans and extensive
       coverage areas. We also offer flexible pricing options such as pooled
       rate plans, pre-pay plans and our national SunRate plans.

  Strong Capital Base.  We have committed capital of approximately $1.3 billion,
consisting of the following:

     . up to $525.0 million of borrowings under our senior credit facilities
       provided by a syndicate of banks led by The Chase Manhattan Bank, TD
       Securities (USA) Inc. and Bankers Trust Company;

     . approximately $327.6 million of gross proceeds from the offering of the
       Old Notes;

     . $55.0 million of vendor financing provided by Lucent, with up to an
       additional $65.0 million available for the development of new markets;

     . $205.3 million of irrevocable equity commitments from AT&T and entities
       managed by Chase Capital Partners, Desai Capital Management Incorporated,
       Hoak Capital Corporation, J.H. Whitney & Co., M/C Partners, Entergy
       Corporation, Northwood Ventures LLC, One Liberty Ventures LLC and Toronto
       Dominion Capital (USA) Inc.; and

     . $148.0 million of equity issued in exchange for licenses contributed to
       us and related agreements.

  Superior Technology.  We chose to build our network using TDMA technology.
TDMA is the technology used by AT&T, and therefore our network is compatible
with AT&T's and other TDMA networks.

     . TDMA technology allows enhanced features and services relative to analog
       cellular service, including extended battery life, integrated voicemail,
       paging, fax and e-mail delivery, enhanced voice privacy and short-
       messaging capability.

     . Investment in TDMA product development has led to the development of an
       advanced generation of handsets capable of delivering stand-by battery
       life of up to 14 days. We believe that wireless users place great value
       on the convenience and reliability afforded by this technological
       advance.

     . TDMA provides high network quality and in-building penetration.

     . TDMA provides network capacity at least three times greater than existing
       analog cellular networks, which results in operating cost advantages.

     . Two of the top three wireless communications companies in the United
       States, based on number of customers, use TDMA technology. The increased
       volume of TDMA users has driven down handset prices and has increased the
       importance of TDMA as an industry standard.

  Experienced and Incentivized Management.  We have a management team with a
high level of experience in the wireless communications industry.  Our 14 member
senior management team has an average of ten years of experience with wireless
leaders such as AT&T, Bell Atlantic, BellSouth, SBC Communications, ALLTEL and
Sprint PCS(R).

                                      -3-
<PAGE>

     . Mr. Vento, our co-founder, Chief Executive Officer and Chairman of our
       Board of Directors, has 20 years of experience in communications and
       previously served as Chief Executive Officer of Sprint Spectrum(TM)/APC,
       leading the development of the first PCS network launched in North
       America.

     . Mr. Sullivan, our co-founder, Executive Vice President and Chief
       Financial Officer, is experienced in the wireless industry, having
       formerly served as President of TeleCorp Holding, our predecessor
       company, and co-head of the telecommunications law practice at McDermott,
       Will & Emery.

     . Julie Dobson, our Chief Operating Officer, has extensive operating
       experience in the telecommunications industry, including 18 years at Bell
       Atlantic, most recently as President of the New York region of Bell
       Atlantic Mobile Systems.

     . Our senior management team has substantial experience developing PCS
       networks in several markets using the three competing PCS technology
       standards of TDMA, CDMA and GSM.

     . Our senior management team owns approximately 14% of our common stock.

                               Business Strategy

  Our formula for success is to focus on providing our customers with superior
coast-to-coast and in-market coverage, enhanced value at low cost, quality
customer care and superior network clarity.

  Provide Superior Coast-to-Coast and In-Market Coverage.   Our market research
indicates that scope and quality of coverage are extremely important to
customers in their choice of a wireless service provider. We have designed
extensive local calling areas, and we offer coast-to-coast coverage through our
arrangements with AT&T and its roaming partners. Our network covers those areas
where people are most likely to take advantage of wireless coverage, such as
suburbs, metropolitan areas and vacation locations: the places where they live,
work, and play. Through the use of tri-mode handsets, we offer our customers a
large in-market footprint and coast-to-coast roaming, providing them with
reliable, quality service.

  Provide Enhanced Value at Low Cost.   We offer our customers advanced services
and features at competitive prices. Our pricing plans are designed to promote
the use of wireless services by enhancing the value of our services to our
customers. We include usage enhancing features such as call waiting, three-way
conference calling, and short message service in our basic packages. We market
our service with a simple, all-in-one focus: digital phone, pager and voice
mail. We offer our customers affordable, simple calling plans, and we take
advantage of the coast-to-coast reach of AT&T and its roaming partners. In May
1998, AT&T introduced Digital One Rate, a suite of rate plans that has caused a
redefinition of local service areas in the U.S. wireless marketplace. These
simplified rate plans allow a customer to purchase a large "bucket" of minutes
per month for a low fixed price. These minutes can generally be used throughout
the United States without paying additional roaming fees or long distance
charges. Our national SunRate plans are similar to AT&T's Digital One Rate
plans. We believe we can offer competitive services because of the cost
advantages provided by our agreements with AT&T and the other SunCom companies,
the cost-effective characteristics of TDMA and our centralized administrative
functions and efficient distribution.

  Deliver Quality Customer Care.   We believe that superior customer service is
a critical element in attracting and retaining customers. Our marketing strategy
is designed to meet the needs of four primary market segments: corporate
accounts, current wireless users, those with the intent to purchase wireless
service within six months and pre-paid subscribers. We serve our customers from
our state-of-the-art facility in Memphis, Tennessee, which houses our customer
service, collections and anti-fraud personnel. Convergys, a leading provider of
outsourced call center services, provides backup call center support and
bilingual customer service from two facilities in Florida. We have implemented a
"one call resolution" approach to customer care through the use of customer
support tools such as an advanced diagnostic mechanism and access to online
reference information. We are developing a state-of-the-art data warehouse to
provide timely access to critical business information that can be used to
provide customers with desired services, such as real-time billing and automated
notification of remaining account balances. Our pre-paid users hear a
"whispered" announcement of time remaining in their account before each call
they place, which allows them to control usage and reduce balance inquiries to
customer service. In addition, we emphasize proactive and timely customer
service, including welcome packages and anniversary calls. Our Internet site
provides our customers with access to new service information giving us an
additional source of contact with our customers. Finally, we support our
customer care initiatives through employee compensation plans based on
subscriber quotas and retention.

  Offer Superior Network Clarity.   We are committed to making the capital
investment required to develop a superior network. We intend to invest
approximately $50 per covered Pop for the construction of our network, which we
believe will ensure consistent quality performance and result in a high level of
customer satisfaction. Our capital investment is designed to provide a

                                      -4-
<PAGE>

highly reliable network as measured by performance factors such as percentage of
call completion and number of dropped calls. We maintain a state-of-the-art
network operations center and, to ensure continuous monitoring and maintenance
of our network, we have a disaster recovery plan.

                              Recent Developments

  We participated in the FCC's reauction of C-Block licenses for additional
spectrum through Viper Wireless, a subsidiary formed for this purpose.  On April
20, 1999, the FCC announced that the reauction ended, and Viper Wireless was the
high bidder for 15 MHz licenses in New Orleans, Houma and Alexandria, Louisiana,
San Juan, Puerto Rico and Jackson, Tennessee.  Viper Wireless was also the high
bidder for a 30 MHz license in Beaumont, Texas. AT&T and certain of our cash
equity investors have committed an aggregate of approximately $32.3 million in
exchange for additional shares of our preferred and common stock in the event
Viper Wireless is ultimately awarded these licenses.  AT&T and the investors
funded approximately $6.5 million of their commitment on May 14, 1999, and
approximately $25.8 million will be funded when we make payments to the FCC with
respect to these licenses, or if the FCC does not refund amounts we paid to them
as deposits in connection with the reauction within 180 days of the date of
deposit.  On June 3, 1999, a petition was filed by certain secured creditors of
DCR PCS, Inc. and Pocket Communications Inc. against the application of Viper
Wireless for the Houma and New Orleans licenses.  The petition seeks deferral of
the grant of these licenses to Viper Wireless until an appeal by the secured
creditors of DCR PCS and Pocket Communications has been resolved or, in the
alternative, a condition noting that a pre-existing claim to the licenses may
exist if the secured creditors of DCR PCS and Pocket Communications are
successful in that appeal.  The appeal seeks review of the bankruptcy court's
ruling concerning DCR PCS and Pocket Communications permitting DCR PCS to file
its election notice, which ultimately resulted in the return of these licenses
to the FCC, over the objection of the secured creditors of DCR PCS and Pocket
Communications.  Viper Wireless filed an opposition to the petition on June 15,
1999.  TeleCorp Holding owns 85% of Viper Wireless, and Mr. Vento and Mr.
Sullivan together own the remaining 15%.  Mr. Vento and Mr. Sullivan together
have voting control over Viper Wireless.

  On April 20, 1999, we completed the acquisition of 10 MHz F-Block PCS licenses
covering the Baton Rouge, Houma, Hammond and Lafayette, Louisiana BTAs from
Digital PCS. As consideration for these licenses, we issued to Digital PCS $2.3
million of our common and preferred stock, paid Digital PCS approximately $0.3
million in reimbursement of interest paid on U.S. government debt related to the
license and assumed $4.1 million of debt owed to the U.S. government related to
these licenses. This debt is shown on our balance sheet net of a discount of
$0.7 million reflecting the below market interest rate on the debt. These
licenses cover approximately 1.6 million Pops, including 1.2 million Pops in
Baton Rouge and Lafayette covered by licenses we already owned. These licenses
also cover areas contiguous to our existing licensed area, including travel
corridors, which provide us with opportunities to expand our covered area.

  On May 25, 1999, we completed the acquisition of a 20 MHz A-Block PCS license
and related assets covering the San Juan MTA from AT&T. On May 24, 1999, we sold
to AT&T $40.0 million of our preferred stock. On May 25, 1999, we purchased the
license and related assets from AT&T for $95.0 million in cash. In addition, we
reimbursed AT&T $3.2 million for microwave relocation and $1.5 million for other
expenses it incurred in connection with the acquisition. This license covers
approximately 4.0 million Pops in Puerto Rico and the U.S. Virgin Islands.

  On June 2, 1999, we completed the acquisition of 15 MHz C-Block PCS licenses
covering the Alexandria, Lake Charles and Monroe, Louisiana BTAs from Wireless
2000. As consideration for these licenses, we issued to Wireless 2000
approximately $0.4 million of common and preferred stock, paid Wireless 2000
$0.2 million for its costs for microwave relocation related to the Monroe
license, $0.4 million in reimbursement of interest paid on government debt
related to the license and assumed $7.4 million of debt owed to the U.S.
government related to these licenses. This debt is shown on our balance sheet
net of a discount of $1.3 million reflecting the below market interest rate on
the debt. These licenses cover approximately 0.8 million Pops. These licenses
also cover areas contiguous to our existing licensed area, including travel
corridors, which provide us with opportunities to expand our covered area. We
have no present intention to develop the markets covered by the Alexandria and
Monroe licenses.

  Our agreements with AT&T were extended to cover these markets upon the closing
of the Louisiana and Puerto Rico acquisitions, except for a portion of the
Monroe BTA.

                     Network Development and Financing Plan

  We began commercial operations in December 1998, and we have launched our
services in each of our major domestic markets. Our network now covers
approximately 40% of our domestic licensed Pops. We expect to launch our Puerto
Rico market during the third quarter of 1999.

                                      -5-
<PAGE>

  We estimate that our total capital requirements from our inception until our
network is substantially built out will be approximately $1.2 billion.  These
requirements include license acquisition costs, capital expenditures for the
network construction, operating cash flow losses and other working capital
costs, debt service and closing fees and expenses.  These requirements have
been, and will be, funded by a variety of sources, including cash equity, the
net proceeds from the offering of the Old Notes, vendor financing and borrowings
under our senior credit facilities.

  Substantially all of our operations are conducted through TeleCorp
Communications, Inc. and its subsidiaries.  Mr. Vento and Mr. Sullivan provide
supervisory managerial services under a management agreement between TeleCorp
and TeleCorp Management Corp.

  We are a Delaware corporation and our principal executive offices are at 1010
N. Glebe Road, Suite 800, Arlington, Virginia 22201.  The telephone number at
our executive offices is (703) 236-1100.  We maintain a website at
http://www.suncom1.com.

                                      -6-
<PAGE>

                               THE EXCHANGE OFFER

The Exchange Offer...... We are offering to exchange $1,000 principal amount of
                         the Exchange Notes for each $1,000 principal amount of
                         the Old Notes.  As of the date hereof, $575.0 million
                         aggregate principal amount at maturity of the Old Notes
                         are outstanding.  The terms of the Exchange Notes are
                         substantially the same as the terms of the Old Notes
                         except that the Exchange Notes will be registered under
                         the Securities Act of 1933, as amended, and the
                         Exchange Notes will not contain certain transfer
                         restrictions, registration rights and terms providing
                         for us to pay liquidated damages to holders of the Old
                         Notes under certain events relating to registration of
                         the Exchange Notes.

                         Based on interpretations by the staff of the SEC, as
                         set forth in no-action letters issued to certain third
                         parties unrelated to us in other transactions, we
                         believe that Exchange Notes issued in the Exchange
                         Offer in exchange for Old Notes may be offered for
                         resale, resold or otherwise transferred by holders of
                         such Exchange Notes, other than any holder which is our
                         "affiliate" within the meaning of Rule 405 under the
                         Securities Act, or a broker-dealer who purchased Old
                         Notes directly from us to resell under Rule 144A or any
                         other available exemption promulgated under the
                         Securities Act, without compliance with the
                         registration and prospectus delivery requirements of
                         the Securities Act, so long as such Exchange Notes are
                         acquired in the ordinary course of the business of such
                         holders and such holders have no arrangement with any
                         person to engage in a distribution of Exchange Notes.

                         However, the SEC has not considered the Exchange Offer
                         in the context of a no-action letter and we cannot be
                         sure that the staff of the SEC would make a similar
                         determination with respect to the Exchange Offer as in
                         such other circumstances.  Further, each holder, other
                         than a broker-dealer, must acknowledge that it is not
                         engaged in, and does not intend to engage in, a
                         distribution of the Exchange Notes and has no
                         arrangement or understanding to participate in a
                         distribution of Exchange Notes.  Each broker-dealer
                         that receives the Exchange Notes for its own account in
                         the Exchange Offer must acknowledge that it will comply
                         with the prospectus delivery requirements of the
                         Securities Act in connection with any resale of such
                         Exchange Notes.  Broker-dealers who acquired Old Notes
                         directly from us and not as a result of market-making
                         activities or other trading activities may not rely on
                         the staff's interpretations discussed above or
                         participate in the Exchange Offer and must comply with
                         the prospectus delivery requirements of the Securities
                         Act in order to resell the Old Notes.

Expiration Date......... The Exchange Offer will expire at 5:00 p.m., New York
                         City time,            , 1999, or such later date and
                         time to which we extend it.

Withdrawal.............. The tender of the Old Notes in the Exchange Offer may
                         be withdrawn at any time prior to 5:00 p.m., New York
                         City time, on                , 1999, or such later date
                         and time to which we extend the offer.  We will return
                         any Old Notes that we do not accept for exchange for
                         any reason without expense to the tendering holder of
                         such Notes as soon as practicable after the Exchange
                         Offer expires or terminates.

Accrued Interest on the
Exchange Notes and the
Old Notes............... Interest on the Exchange Notes will accrue from the
                         date we issued the Old Notes (April 23, 1999) for which
                         the Exchange Notes are exchanged until April 15, 2004,
                         at which time they will have an aggregate principal
                         amount of $575,000,000.  At that time, cash interest on
                         the Notes will become payable on April 15 and October
                         15 of each year, beginning on October 15, 2004.  We
                         will pay no interest on the Old Notes tendered and
                         accepted for exchange.

Conditions to the
Exchange Offer.......... The Exchange Offer is subject to certain customary
                         conditions, certain of which we may waive. See "The
                         Exchange Offer - Certain Conditions to the Exchange
                         Offer" beginning on page 54.

                                      -7-
<PAGE>

Procedures for Tendering
Old Notes................... Each holder of the Old Notes wishing to accept the
                             Exchange Offer must complete, sign and date a
                             Letter of Transmittal in accordance with the
                             instructions contained in the Letter of Transmittal
                             and in this prospectus, and mail or otherwise
                             deliver that Letter of Transmittal, together with
                             the Old Notes and any other required documentation,
                             to the exchange agent at the address set forth in
                             this prospectus and registration statement. Holders
                             may sign and mail copies of the Letter of
                             Transmittal. Persons holding the Old Notes through
                             the Depository Trust Company (DTC) and wishing to
                             accept the Exchange Offer must do so under DTC's
                             Automated Tender Offer Program, by which each
                             tendering participant will agree to be bound by the
                             Letter of Transmittal. By executing or agreeing to
                             be bound by the Letter of Transmittal, each holder
                             will represent to us that, among other things, (1)
                             the Exchange Notes acquired in the Exchange Offer
                             are being obtained in the ordinary course of
                             business of the person receiving such Exchange
                             Notes, whether or not such person is the registered
                             holder of the Old Notes, (2) that if such holder is
                             a broker-dealer registered under the Exchange Act
                             or is participating in the Exchange Offer for the
                             purposes of distributing the Exchange Notes, such
                             holder will comply with the registration and
                             prospectus delivery requirements of the Securities
                             Act in connection with a resale of such holder's
                             Exchange Notes and cannot rely on the position of
                             the staff of the SEC set forth in no-action letters
                             (see "The Exchange Offer--Purpose and Effects"),
                             (3) such holder understands that a resale described
                             in clause (2) above and any resales of the Exchange
                             Notes obtained by such holder in exchange for the
                             Old Notes acquired by such holder directly from us
                             should be covered by an effective registration
                             statement containing the seller securityholder
                             information required by Item 507 or Item 508, as
                             applicable, of Regulation S-K of the SEC, (4) the
                             holder does not have any arrangement or
                             understanding with any person to participate in the
                             distribution of the Exchange Notes and (5) the
                             holder is not our "affiliate," as defined in Rule
                             405 under the Securities Act.

                             Holders who tender their Old Notes in the Exchange
                             Offer with the intention of participating in a
                             distribution of the Exchange Notes will not be able
                             to rely on the no-action letters described under
                             the heading "The Exchange Offer" above. If the
                             holder is a broker-dealer that will receive
                             Exchange Notes for its own account in exchange for
                             Old Notes that such broker-dealer acquired as a
                             result of market-making activities or other trading
                             activities, such holder will be required to
                             acknowledge in the Letter of Transmittal that such
                             holder will deliver a prospectus in connection with
                             any resale of such Exchange Notes; however, by so
                             acknowledging and by delivering a prospectus, such
                             holder will not be deemed to admit that it is an
                             "underwriter" within the meaning of the Securities
                             Act. See "The Exchange Offer--Procedures for
                             Tendering Old Notes."

                             We will accept for exchange any and all Old Notes
                             which are properly tendered (and not withdrawn) in
                             the Exchange Offer prior to 5:00 p.m., New York
                             City time, on       , 1999. The Exchange Notes
                             issued in the Exchange Offer will be delivered
                             promptly following the expiration date. See "The
                             Exchange Offer--Terms of the Exchange Offer"
                             beginning on page 50.

Special Procedures for
Beneficial Owners........... Any beneficial owner whose Old Notes are registered
                             in the name of a broker, dealer, commercial bank,
                             trust company or other nominee and who wishes to
                             tender such Old Notes in the Exchange Offer should
                             contact such registered holder promptly and
                             instruct such registered holder to tender on such
                             beneficial owner's behalf. If such beneficial owner
                             wishes to tender on such owner's own behalf, such
                             owner must, prior to completing and executing a
                             Letter of Transmittal and delivering such owner's
                             Old Notes, either make appropriate arrangements to
                             register ownership of the Old Notes in such owner's
                             name or obtain a properly completed bond power from
                             the registered holder. The transfer of registered
                             ownership may take considerable time and may not be
                             able to be completed prior to the Expiration Date.
                             See "The Exchange Offer--Procedures for Tendering
                             Old Notes."

                                      -8-
<PAGE>

Guaranteed Delivery
Procedures.................. Holders of the Old Notes who wish to tender their
                             Old Notes and whose Old Notes are not immediately
                             available or who cannot deliver their Old Notes, a
                             Letter of Transmittal or any other documentation
                             required by a Letter of Transmittal to the exchange
                             agent prior to the Expiration Date must tender
                             their Old Notes according to the guaranteed
                             delivery procedures set forth under "The Exchange
                             Offer--Guaranteed Delivery Procedures."

Exchange Agent.............. Bankers Trust Company is serving as exchange agent
                             in connection with the Exchange Offer.

U.S. Federal Tax
Considerations.............. The exchange of the Old Notes for the Exchange
                             Notes in the Exchange Offer should not constitute a
                             sale or an exchange for U.S. federal income tax
                             purposes. See "Certain U.S. Federal Tax
                             Considerations--Exchange Offer" beginning on page
                             117.

Effect of Not Tendering..... The Old Notes that are not tendered or that are
                             tendered but not accepted will, following the
                             completion of the Exchange Offer, continue to be
                             subject to the existing restrictions upon transfer.
                             Under certain circumstances, we may register the
                             Old Notes under a shelf registration statement.

Use of Proceeds............. We will not receive any cash from the exchange of
                             the Old Notes in the Exchange Offer.

                                      -9-
<PAGE>

                                   THE NOTES

Issuer.................. TeleCorp PCS, Inc.

Securities Offered...... $575,000,000 aggregate principal amount at maturity of
                         11 5/8% Senior Subordinated Discount Notes due 2009.

Maturity Date........... April 15, 2009.

Interest and Accretion.. The Notes will accrete in value until April 15, 2004,
                         compounded semi-annually. At that time, cash interest
                         on the Notes will accrue and become payable on April 15
                         and October 15 of each year, beginning on October 15,
                         2004. The yield to maturity of the Notes is 11 5/8%
                         (computed on a semi-annual bond-equivalent basis)
                         calculated from April 23, 1999.

Original Issue Discount. We issued the Notes with "original issue discount"
                         for U.S. federal income tax purposes. When computing
                         gross income for U.S. federal income tax purposes, a
                         holder of the Notes will be required to include in
                         gross income a portion of the "original issue discount"
                         for each day during each taxable year in which any
                         Notes are held, even though no cash interest payments
                         on the Notes will be made prior to October 15, 2004.
                         The "original issue discount" will be equal to the
                         difference between the sum of all cash payments
                         (whether denominated as interest or principal) to be
                         made on the Notes and the issue price of the Notes. See
                         "Certain U.S. Federal Tax Considerations--Tax
                         Consequences to U.S. Holders."

Optional Redemption..... On or after April 15, 2004, we may redeem some or all
                         of the Notes at the redemption prices set forth under
                         "Description of the Notes--Optional Redemption,"
                         together with accrued and unpaid interest, if any, to
                         the date of redemption.

                         Before April 15, 2002, we may redeem up to 35% of the
                         aggregate principal amount at maturity of the Notes
                         with the net cash proceeds of certain equity offerings
                         at a redemption price equal to 111 5/8% of the accreted
                         value of the Notes as of the date of redemption,
                         provided that at least 65% of the aggregate principal
                         amount at maturity of the Notes remains outstanding
                         immediately after the redemption. See "Description of
                         the Notes--Optional Redemption."

Change of Control....... If we experience a change of control, you will have the
                         right to require us to repurchase your Notes at a price
                         equal to 101% of either the accreted value or the
                         principal amount at maturity of the Notes, as
                         applicable, together with accrued and unpaid interest,
                         if any, to the date of repurchase. See "Description of
                         the Notes--Change of Control."

Subsidiary Guarantees... The Notes are fully and unconditionally guaranteed on
                         an unsecured, senior subordinated basis by TeleCorp
                         Communications.  Certain of our future subsidiaries
                         that incur debt will fully and unconditionally
                         guarantee the Notes on an unsecured, senior
                         subordinated basis.  If we fail to make payments on the
                         Notes, our guarantor subsidiaries must make them
                         instead.  Each of our guarantor subsidiaries also
                         guarantees our senior credit facilities and are jointly
                         and severally liable on a senior basis with us for all
                         obligations thereunder.  Not all of our subsidiaries
                         guarantee payments on the Notes.  All obligations under
                         our senior credit facilities are secured by pledges of
                         all the capital stock of all our subsidiaries and
                         security interests in, or liens on, substantially all
                         of our other tangible and intangible assets and the
                         tangible and intangible assets of our subsidiaries.
                         See "Description of the Notes--Subsidiary Guarantees,"
                         "--Certain Covenants" and "Certain Indebtedness--Senior
                         Credit Facilities."

                                      -10-
<PAGE>

Ranking................. The Notes and the subsidiary guarantees are unsecured
                         and:

                         .  subordinate in right of payment to all of our and
                            our guarantor subsidiaries' existing and future
                            senior debt (including our and our guarantor
                            subsidiaries' obligations under our senior credit
                            facilities);

                         .  equal in right of payment with any of our and our
                            guarantor subsidiaries' future senior subordinated
                            debt; and

                         .  senior in right of payment to all of our and our
                            guarantor subsidiaries' subordinated debt.

                         Assuming the Transactions had been completed on March
                         31, 1999, (1) our outstanding senior debt would have
                         been approximately $225.0 million (excluding unused
                         commitments under our senior credit facilities and
                         additional senior indebtedness of our subsidiaries),
                         (2) we would have had no senior subordinated debt other
                         than the Notes and (3) our  outstanding subordinated
                         debt would have been approximately $40.5 million,
                         including $0.5 million of interest that was paid-in-
                         kind, plus $0.3 million of additional accrued interest.
                         In addition, (1) the outstanding senior debt of our
                         guarantor subsidiary would have been approximately
                         $225.0 million (consisting entirely of a guarantee of
                         our borrowings under our senior credit facilities), (2)
                         our subsidiary guarantor would have had no senior
                         subordinated debt other than the guarantee of the Notes
                         and (3) our subsidiary guarantor would have had no
                         subordinated debt. Our subsidiaries who do not
                         guarantee the Notes would have had a total of
                         approximately $242.5 million of senior debt, consisting
                         of approximately $20.7 million of debt owed to the U.S.
                         government related to our licenses and approximately
                         $225.0 million consisting of guarantees of our
                         borrowing under our senior credit facilities. The U.S.
                         government debt is shown on our balance sheet net of
                         discounts of $3.2 million reflecting the below market
                         interest rates on the debt. These subsidiaries would
                         have had no senior subordinated debt or subordinated
                         debt. The total liabilities of these subsidiaries would
                         have been approximately $320.8 million, consisting of
                         debt owed to the U.S. government related to our
                         licenses in the approximate amount of $20.7 million,
                         trade payables in the approximate amount of $24.8
                         million, accrued and other expenses in the approximate
                         amount of $4.1 million and intercompany amounts payable
                         in the approximate amount $274.4 million. The U.S.
                         government debt is shown on our balance sheet net of
                         discounts of $3.2 million reflecting the below market
                         interest rates on the debt. See "Description of Notes--
                         Ranking."

Restrictive Covenants... We issued the Old Notes, and will issue the Exchange
                         Notes, under an indenture with Bankers Trust Company,
                         as trustee. The indenture restricts, among other
                         things, our ability and the ability of certain of our
                         subsidiaries to:

                         .  incur debt;

                         .  layer debt;

                         .  pay dividends on or redeem capital stock;

                         .  make certain investments or redeem certain
                            subordinated debt;

                         .  make certain dispositions of assets;

                         .  engage in transactions with affiliates;

                         .  engage in certain business activities; and

                         .  engage in mergers, consolidations and certain sales
                            of assets.

                                      -11-
<PAGE>

                         The indenture governing the Notes also limits our
                         ability to permit restrictions on the ability of
                         certain of our subsidiaries to pay dividends or make
                         certain other distributions.

                         For more details, see "Description of the Notes--
                         Certain Covenants" and "--Merger, Consolidation and
                         Certain Sales of Assets."


                                  Risk Factors

  You should consider carefully all of the information set forth in this
prospectus and, in particular, you should evaluate the specific factors under
"Risk Factors" beginning on the next page before exchanging the Notes.





                                      -12-
<PAGE>

                                  RISK FACTORS

  You should consider carefully the following factors and the other information
in this prospectus before exchanging the Notes.


We are a new company, and we may not be able to manage the construction of our
network or the growth of our business successfully.

  We began our operations in December 1998 by servicing roaming customers in
certain of our Louisiana markets, and we began offering our wireless services in
each of our major domestic markets in the first quarter of 1999. As our business
expands, we will have to construct, test and deploy additional portions of our
network, enhance our financial, operational and administrative systems, hire,
train, integrate and manage additional employees and retain qualified personnel.
Our financial performance will depend on our ability to manage the construction
of our network and the successful growth of our business. If management is
unable to direct our development effectively, including by failing to implement
adequate systems and controls in a timely manner or by failing to retain
qualified employees, we could be materially adversely affected. See "--The FCC
may not finally grant our additional licenses," "--Our success depends upon our
relationship with AT&T and its success," "--We may not be able to acquire the
sites necessary to complete our network," "--We may have difficulty in obtaining
infrastructure equipment," "Business--Network Development" and "Management."

We continue to incur significant operating losses, and we may not be able to
generate positive cash flow from our operations in the future.

  We incurred cumulative operating losses through March 31, 1999 of
approximately $85.3 million. We expect to continue to incur significant
operating losses and to generate negative cash flow from operating activities
for at least the next several years while we continue to construct our network
and develop our customer base. Our ability to eliminate operating losses and to
generate positive cash flow from operations in the future will depend upon a
variety of factors, many of which we cannot control. These factors include:

     .  the cost of constructing our network;

     .  changes in technology;

     .  changes in governmental regulations;

     .  the level of demand for wireless communications services;

     .  the product offerings, pricing strategies and other competitive factors
        of our competitors; and

     .  general economic conditions.

  If we are unable to implement our business plan successfully, we may not be
able to eliminate operating losses, generate positive cash flow or achieve or
sustain profitability, which would materially adversely affect us and our
ability to make payments on the Notes. See "--The FCC may not finally grant our
additional licenses," "--Our success depends upon our relationship with AT&T
and its success," "--We may not be able to acquire the sites necessary to
complete our network," "--We may have difficulty in obtaining infrastructure
equipment," and "Management's Discussion and Analysis of Financial Condition and
Results of Operations."

We have substantial debt which we may not be able to service.

  We have a substantial amount of debt. As of March 31, 1999, after giving
effect to the Transactions, our outstanding debt would have been approximately
$610.9 million, consisting of (1) approximately $225.0 million of borrowings
under our senior credit facilities and $20.7 million of debt owed to
the U.S. government related to our licenses, which debt is shown on our balance
sheet net of discounts of $3.2 million reflecting the below market interest
rates on the debt, (2) approximately $327.6 million in accreted value of the
Notes and (3) approximately $40.5 million, including $0.5 million of interest
that was paid in kind, of junior subordinated notes, plus $0.3 million of
additional accrued interest, issued to Lucent in connection with the vendor
financing provided by Lucent. In addition, Lucent has committed to purchase up
to an additional $80.0 million of junior subordinated notes in connection with
our development of new markets.  We may incur additional debt in the future.
The indenture governing the Notes permits us to incur additional debt, subject
to certain limitations.  Our senior credit facilities provide for total
borrowings in the amount of up to

                                      -13-
<PAGE>

$525.0 million, and, in certain circumstances, for additional borrowings in the
amount of up to $75.0 million. As of March 31, 1999, after giving effect to the
Transactions, the vendor financing provided by Lucent provided for us to issue
up to an additional $15.0 million aggregate principal amount of notes based upon
our current markets and an additional $65.0 million if we develop new markets.
See "Certain Indebtedness" and "Description of the Notes."

  The substantial amount of our debt will have a number of important
consequences for our operations, including:

     .  we may not have sufficient funds to pay interest on, and principal of,
        our debt (including the Notes);

     .  if payments on any debt owed to the U.S. government are not made when
        due, the FCC may:

        .  impose substantial financial penalties;

        .  reclaim and reauction the related licenses, and impose a significant
           financial penalty in respect of each license that is reclaimed and
           reauctioned;

        .  deny renewal of any other licenses; and

        .  pursue other enforcement measures;

     .  we will have to dedicate a substantial portion of any cash flow from
        operations to the payment of interest on, and principal of, our debt,
        which will reduce funds available for other purposes;

     .  we may not be able to obtain additional financing for capital
        requirements, capital expenditures, working capital requirements and
        other corporate purposes;

     .  some of our debt, including borrowings under our senior credit
        facilities, will be at variable rates of interest, which could result in
        higher interest expense in the event of increases in interest rates;

     .  pledges of the capital stock of our subsidiaries and liens on
        substantially all of our other assets and the assets of such
        subsidiaries secure the debt incurred under our senior credit facilities
        and this debt matures prior to the maturity of the Notes; and

     .  our ability to adjust to changing market conditions and to withstand
        competitive pressures could be limited, and we may be vulnerable to
        additional risk in the event of a downturn in general economic
        conditions or our business.

  See "--We could lose our F-Block and C-Block licenses if we fail to meet
financial and other tests," "--Government regulation, changes in our licenses or
other governmental action could adversely affect us," "Business--Government
Regulation" and "Certain Indebtedness."

  Our ability to make payments on our debt, including the Notes, depends upon
our future operating performance, which is subject to general economic and
competitive conditions and to financial, business and other factors, many of
which we cannot control.  If our cash flow from operating activities is
insufficient, we may take certain actions, including delaying or reducing
capital expenditures, attempting to restructure or refinance our debt, selling
assets or operations or seeking additional equity capital.  We may be unable to
take any of these actions on satisfactory terms or in a timely manner.  Further,
any of these actions may not be sufficient to allow us to service our debt
obligations.  Our existing debt agreements limit our ability to take certain of
these actions.  The indenture governing the Notes contains similar restrictions.
See "--Our debt instruments could restrict our business plans."  Our failure to
earn enough to pay our debts or to successfully undertake any of these actions
could, among other things, materially adversely affect the market value of the
Notes. See "Management's Discussion and Analysis of Financial Condition and
Results of Operations--Liquidity and Capital Resources," "Certain Indebtedness"
and "Description of the Notes."

We may need additional financing to complete our network and fund operating
losses.

  We will make significant capital expenditures to finish the designing,
building, testing and deployment of our network. We estimate that the proceeds
from the offering of the Old Notes, together with the proceeds from sales of our
equity securities, borrowings under our senior credit facilities and the vendor
financing provided by Lucent, and internally generated cash, will be sufficient
to:

                                      -14-
<PAGE>

     .  fund the planned construction of our network;

     .  fund operating losses; and

     .  satisfy debt service requirements through December 31, 2002.

See "Use of Proceeds" and "Business--Network Development." The actual
expenditures necessary to achieve these goals may differ significantly from our
estimates. We would have to obtain additional financing, if:

     .  any of our sources of capital are unavailable or insufficient;

     .  we significantly depart from our business plan;

     .  we experience unexpected delays or cost overruns in the construction of
        our network;

     .  we have increases in operating costs;

     .  changes in technology or governmental regulations create unanticipated
        costs; or

     .  we acquire additional licenses.

  We cannot predict whether any additional financing will be available, the
terms on which any additional financing would be available or whether our
existing debt agreements will allow additional financing. If we cannot obtain
additional financing when needed, we will have to delay, modify or abandon some
of our plans to construct the remainder of our network.

  We have sold $205.3 million of equity securities. As of March 31, 1999, we had
received payments of $55.5 million in payment for such securities. The remaining
$149.8 million (including $32.3 million of commitments to reimburse us for costs
incurred in connection with the FCC's reauction of C-Block licenses) has been
irrevocably committed and will be paid within three years. If we do not receive
the proceeds from sales of our equity securities in a timely manner, our ability
to complete construction of our network, successfully implement our business
plan and capitalize on opportunities for growth could be materially adversely
affected.

The FCC may not finally grant our additional licenses.

  We participated in the FCC's reauction of C-Block and other licenses for
additional spectrum through Viper Wireless.  On April 20, 1999, the FCC
announced that the reauction ended, and Viper Wireless was the high bidder for
additional spectrum in New Orleans, Houma and Alexandria, Louisiana, San Juan,
Puerto Rico, Jackson, Tennessee and Beaumont, Texas.  On June 3, 1999, a
petition was filed by certain secured creditors of DCR PCS and Pocket
Communications against the application of Viper Wireless for the Houma and New
Orleans licenses.  The petition seeks deferral of the grant of these licenses to
Viper Wireless until an appeal by the secured creditors of DCR PCS and Pocket
Communications has been resolved or, in the alternative, a condition noting that
a pre-existing claim to the licenses may exist if the secured creditors of DCR
PCS and Pocket Communications are successful in that appeal.  The appeal seeks
review of the bankruptcy court's ruling concerning DCR PCS and Pocket
Communications permitting DCR PCS to file its election notice, which ultimately
resulted in the return of these licenses to the FCC, over the objection of the
secured creditors of DCR PCS and Pocket Communications.  Viper Wireless filed an
opposition to the petition on June 15, 1999.  If we transfer these licenses to
TeleCorp Holding Corp., Inc., our wholly owned subsidiary, we would need FCC
approval to do so.  Accordingly, we cannot be certain that we will consummate
this transaction. See "Summary--Recent Developments."

Our success depends upon our relationship with AT&T and its success.

  We have entered into a number of agreements with AT&T, including:

     .  a license agreement, which allows us to market our services using equal
        emphasis co-branding with the AT&T brand name and logo until July 2003
        (which will be automatically renewed for a period of five years unless
        we or AT&T elects not to renew the agreement);

     .  a stockholders' agreement, which provides, among other things, that we
        will be AT&T's exclusive facilities-based provider of mobile wireless
        services in our covered areas until July 2009;

                                      -15-
<PAGE>

     .  an intercarrier roamer service agreement, which allows us and AT&T to
        grant our respective customers the right to roam on the other's network
        until July 2018 (if we or AT&T do not previously terminate the agreement
        after July 2008);

     .  a roaming administration service agreement, which allows us to grant to
        our customers the right to roam on networks operated by companies who
        have entered into roaming agreements with AT&T to the extent provided
        in, and subject to the terms of, such agreements, for two years; and

     .  a long distance agreement, which allows us to purchase long distance
        services at preferred rates.

  In certain situations, AT&T may withdraw from these agreements with us. If we
experience a change in control, AT&T may terminate the license agreement, the
stockholders' agreement and the long distance agreement. If AT&T combines with
certain other businesses, AT&T may terminate the license agreement or the
exclusive provider provisions of the stockholders' agreement for that portion of
our coverage area in which the acquired company provided wireless services.
Currently, only Sprint Corporation, SBC Communications, Bell Atlantic and Bell
South satisfy the criteria regarding the other business in respect of which a
combination would permit the termination of the exclusive provider provisions of
the stockholders' agreement. If we fail to meet certain construction, quality or
feature set requirements, AT&T may terminate the exclusive provider provisions
of the stockholders' agreement. Upon 180 days' prior notice, both we and AT&T
may terminate the roaming administration service agreement. See "Certain
Relationships and Related Transactions--AT&T Agreements."  If the rights to use
the AT&T brand name and logo and related rights granted to us under the license
agreement were revoked or otherwise became unavailable, or if any of the
agreements we have entered into with AT&T were not renewed or were terminated,
we could be materially adversely affected.

  We use our relationship with AT&T to obtain the infrastructure equipment and
handsets that we use in the construction and operation of our network on
preferred terms from the vendors who supply AT&T.  See "--We may have difficulty
obtaining infrastructure equipment."  Any disruption in our relationship with
AT&T could have a material adverse effect on our ability to obtain the
infrastructure equipment that we use in our network or on our relationship with
our vendors.

  We currently depend upon AT&T's systems to activate our subscribers over-the-
air. If this service were not available to us, it could materially adversely
affect our ability to activate our subscribers.

  Our success highly depends upon our relationship with AT&T and its success as
a provider of wireless communications services. AT&T and the other SunCom
companies are subject, to varying degrees, to the same risks that affect us, and
we cannot be sure that AT&T and these companies will succeed in developing their
wireless businesses. Any such failures could materially adversely affect us. See
"--We face significant competition" and "Business--Competition."

  The agreements we have entered into with AT&T contain requirements regarding
the construction of our network, and, in many instances, these requirements are
more stringent than those imposed by the FCC. Failure to meet their requirements
could result in termination of certain exclusivity provisions contained in our
agreements with AT&T. The construction of the remainder of our network involves
risks of unanticipated costs and delays. We will need to complete timely the
construction of additional phases of our network to meet such requirements.

We may not be able to acquire the sites necessary to complete our network.

  We must lease or otherwise acquire rights to use sites for the location of
base station transmitter equipment and obtain zoning variances and other
governmental approvals to complete the construction of our network and to
provide wireless communications services to customers in our licensed areas. In
addition to the sites used in the areas where we currently offer service, we
have leased 149 sites that will be developed in later phases of construction of
our network. Local zoning ordinances restrict our ability to site and construct
antennas, and such ordinances may prevent us from successfully completing the
buildout of our network. If we encounter significant difficulties in leasing or
otherwise acquiring rights to sites for the location of base station transmitter
equipment, we may need to alter the design of our network, which could
materially adversely affect our ability to complete construction of our network
in a timely manner.

We may have difficulty in obtaining infrastructure equipment.

  The demand for the equipment that we require to construct our network is
considerable and manufacturers of this equipment could have substantial backlogs
of orders. Accordingly, the lead time for the delivery of this equipment may be
long. Some of our competitors purchase large quantities of communications
equipment and may have established relationships with the manufacturers of this
equipment. Consequently, they may receive priority in the delivery of this
equipment. Our agreements with

                                      -16-
<PAGE>

vendors contain penalties if vendors do not deliver the equipment according to
schedule. Nevertheless, the vendors may fail to deliver the equipment to us in a
timely manner. If we do not receive the equipment in a timely manner, we may be
unable to provide wireless communications services comparable to those of our
competitors. In addition, we may be unable to satisfy the requirements regarding
the construction of our network contained in FCC regulations or our agreements
with AT&T. If we fail to construct our network in a timely manner, we could
limit our ability to compete effectively, lose our licenses or breach our
agreements with AT&T, which, in turn, could materially adversely affect us. See
"--Our success depends upon our relationship with AT&T and its success," "--
Government regulation, changes in our licenses or other governmental action
could adversely affect us," "--We could lose our F-Block and C-Block licenses if
we fail to meet financial and other tests," "Business--Network Development," "--
Government Regulation" and "Certain Relationships and Related Transactions--AT&T
Agreements."

The interests of our stockholders may conflict with the interests of the
holders of the Notes.

  Under the stockholders' agreement between us and AT&T, AT&T has the right to
elect two of the 13 members of our Board. All of our directors and officers owe
a fiduciary duty to holders of our equity interests, including AT&T. Directors
and officers of a company generally do not owe a fiduciary duty to holders of
debt securities, such as the Notes, and they may not act in the best interests
of the holders of the Notes. In addition, our interests may conflict with those
of AT&T, and we and AT&T may not resolve any such conflict in our favor.

Potential acquisitions may require us to incur additional debt and integrate new
technologies, operations and services.

  We may pursue additional strategic acquisitions of licenses and facilities to
enhance our business, operations and financial results and to expand our
commercial operations. To consummate future acquisitions, we may incur
additional debt. In addition, the acquisition of additional licenses and
facilities involves a number of significant risks, including the difficulties
associated with the integration of new technologies, operations and services
with existing technologies, operations and services and the diversion of
management's attention from other business concerns. Accordingly, future
acquisitions could materially adversely affect us. The construction of a network
and the beginning of commercial operations in any new area will be subject to
the same risks that affect the construction of our network and the beginning of
commercial operations in our current markets. See "--We may need additional
financing to complete our network and fund operating losses" and "--Our success
depends upon our relationship with AT&T and its success," "--We may not be able
to acquire the sites necessary to complete our network" and "--We may have
difficulty in obtaining infrastructure equipment."

We face significant competition.

  Competition in the wireless communications services industry is intense. Many
of our competitors have substantially greater financial, technological,
marketing and sales and distribution resources than we do. In addition,
competitors who entered the wireless communications services market before us
may have a significant "time-to-market" advantage over us. As a new entrant in
the market, we may have to engage in significant and prolonged discounting to
attract customers, which would materially adversely affect our business. In
addition, some of our competitors may market other services, such as traditional
landline telephone service, cable television access and access to the Internet,
together with their wireless communications services. We may not be able to
compete successfully with competitors who have substantially greater resources
or a significant "time-to-market" advantage or who offer more services than we
do.

  We compete in our markets with virtually every major U.S. cellular and PCS
company. Some of these competitors have achieved substantial coverage in
portions of our licensed areas. Certain of our competitors have more extensive
coverage within our licensed areas than we provide and also have broader
regional coverage. In addition, the FCC reauctioned C-Block licenses in
substantially all of our markets, and, to the extent we did not acquire these
licenses, we may face additional competitors in our markets.

  We compete with companies that use other communications technologies,
including paging (and digital two-way paging), ESMR and domestic and global
mobile satellite service. In addition, we expect that, in the future, providers
of wireless communications services will compete more directly with providers of
traditional landline telephone services, energy companies, utility companies and
cable operators who expand their services to offer communications services.
Finally, we may compete in the future with companies who offer new technologies.
See "--Changes in technology and customer demands could adversely affect us."

  Our ability to compete successfully will depend, in part, upon our ability to
anticipate and respond to various competitive factors affecting the industry,
including the introduction of new services, changes in consumer preferences,
demographic trends, economic conditions and competitors' pricing strategies, all
of which could adversely affect our profitability. In addition, the

                                      -17-
<PAGE>

future level of demand for wireless communications services is uncertain. See
"Business--The Wireless Communications Industry" and "--Competition."

We depend upon consultants and contractors who could fail to perform their
obligations.

  We have retained Lucent and other consultants and contractors to assist in the
design and engineering of our systems, construct cell sites, switch facilities
and towers, assist in leasing or otherwise acquiring rights to use sites for the
location of cell sites, deploy our network and install, maintain and support our
information technology systems. See "Certain Relationships and Related
Transactions--Other Related Party Transactions." Although we believe that other
vendors can perform the services that such consultants and contractors provide,
the failure by any of these consultants or contractors to fulfill its
contractual obligations could materially adversely affect our ability to
complete the construction of our network in a timely manner, which could
materially adversely affect us. See "--Our success depends upon our relationship
with AT&T and its success," "--We may not be able to acquire the sites necessary
to complete our network" and "--We may have difficulty in obtaining
infrastructure equipment."

Our success depends upon our ability to attract and retain senior management.

  Our success depends upon the services of the members of our senior management
team, particularly Mr. Vento, Mr. Sullivan and Ms. Dobson, and their ability to
implement our business plan and manage our business. The loss of the services of
one or more of these individuals could materially adversely affect us. We do not
carry life insurance on any of our senior management. See "--We depend on a
management agreement with TeleCorp Management" and "Certain Relationships and
Related Transactions--Management Agreement."

We depend on a management agreement with TeleCorp Management.

  Under the management agreement with TeleCorp Management, TeleCorp Management
provides management services to us regarding the design, development and
operation of our network. We depend upon TeleCorp Management to perform its
obligations under the management agreement. TeleCorp Management, which is wholly
owned by Mr. Vento and Mr. Sullivan, had no operating history before it began
providing services to us. The management agreement terminates:

     .  upon thirty days' notice from TeleCorp Management;

     .  upon our or our stockholders removing Mr. Vento or Mr. Sullivan as a
        director of TeleCorp;

     .  if we do not pay TeleCorp Management;

     .  if we become bankrupt; or

     .  on July 17, 2003, unless renewed.

  If the management agreement is terminated, our success and our ability to
comply with the rules regarding our F-Block and C-Block licenses could be
materially adversely affected. See "--Government regulation, changes in our
licenses and other governmental action could adversely affect us," "We could
lose our F-Block and C-Block licenses if we fail to meet financial and other
tests," "Business--Government Regulation" and "Management--Management
Agreement."

Members of our management own interests in companies that might conflict with
our interests.

  Members of our management, including Mr. Vento and Mr. Sullivan, own interests
in companies that hold licenses to provide wireless communications services in
areas outside of our licensed areas and may acquire interests in companies that
hold licenses to provide wireless communications services in the future.
Although we do not expect that these companies will provide services that
compete with our services, our interests may conflict with the interests of
these companies and any conflicts may not be resolved in our favor.

Government regulation, changes in our licenses or other governmental action
could adversely affect us.

  Congress, the FCC, state and local regulatory agencies and the courts directly
and indirectly regulate wireless communications networks and the networks with
which they interconnect. The FCC, in conjunction with the Federal Aviation
Administration, regulates the marking and lighting of towers, including those
used in wireless communications networks. Congress, the FCC, the Federal
Aviation Administration, state and local regulatory authorities or the courts
may adopt new

                                      -18-
<PAGE>

regulations, amend existing regulations, alter the administration of existing
regulations or take other actions that materially adversely affect us.

  Our licenses to provide wireless communications services, which are our
principal assets, have terms of ten years. Each of our licenses may be renewed
upon expiration of its term for a period of ten years. All of the licenses,
however, are subject to revocation by the FCC at any time "for cause," which
includes the failure to comply with the terms of the licenses, the failure to
remain qualified under applicable FCC rules to hold the licenses, certain
violations of FCC regulations and malfeasance and other misconduct. We cannot
ensure that our licenses will be renewed upon expiration of their terms.
Further, our licenses could be modified in a way that materially adversely
affects us. The nonrenewal or loss of any of our licenses would materially
adversely affect us. Additionally, the threat of nonrenewal or loss of any of
our licenses could materially adversely affect the market value of the Notes.
See "Business--Government Regulation."

  TeleCorp Holding participated in the FCC's auction of F-Block licenses as a
"very small business," and TeleCorp Holding must remain a "very small business"
for at least five years to comply with applicable rules of the FCC. TeleCorp
Holding will also acquire certain C-Block licenses in connection with the
Louisiana acquisitions, which are subject to the same regulations. See "--We
could lose our F-Block and C-Block licenses if we fail to meet financial and
other tests." If TeleCorp Holding were found to be in violation of these rules,
the FCC could impose substantial financial and regulatory penalties upon us and
TeleCorp Holding, such as a fine, revocation of our PCS licenses, acceleration
of installment payment obligations or retroactive loss of bidding credits. For
example, the FCC could require that TeleCorp Holding repay all debt owed to the
U.S. government in respect of the award of our F-Block and C-Block licenses,
restrict or revoke TeleCorp Holding's F-Block and C-Block licenses or refuse to
grant similar licenses to us in the future. See "Business--Government
Regulation." The imposition of any of these financial or regulatory penalties
could materially adversely affect us.

  In addition, TeleCorp Holding owes substantial debt to the U.S. government in
respect of the award of certain F-Block and C-Block licenses. If interest on,
and principal of, any of this debt is not paid when due, or if any default,
after any applicable grace periods expire, on the payment of amounts owed under
this debt occurs, the FCC may:

     .  impose substantial financial penalties;

     .  reclaim and reauction the related licenses, and impose a significant
        financial penalty in respect of each license that is reclaimed and
        reauctioned;

     .  deny renewal of other licenses; or

     .  pursue other enforcement measures.

  See "--We could lose our F-Block and C-Block licenses if we fail to meet
financial and other tests." If the FCC were to take any of these actions, then
we could be materially adversely affected. See "Certain Indebtedness--Government
Debt."

  Spectrum is the range of electromagnetic frequencies available for use.  The
FCC has made additional PCS spectrum available through a reauction of certain C-
Block and other licenses returned to, or repossessed by, the FCC.  We
participated in this reauction for additional spectrum through Viper Wireless.
On April 20, 1999, the FCC announced that the reauction ended, and Viper
Wireless was the higher bidder for additional spectrum in New Orleans, Houma and
Alexandria, Louisiana, San Juan, Puerto Rico, Jackson, Tennessee and Beaumont,
Texas.  On June 3, 1999, a petition was filed by certain secured creditors of
DCR PCS and Pocket Communications against the application of Viper Wireless for
the Houma and New Orleans licenses.  The petition seeks deferral of the grant of
these licenses to Viper Wireless until an appeal, by the secured creditors of
DCR PCS and Pocket Communications has been resolved or in the alternative, a
condition noting that a pre-existing claim to the licenses may exist if the
secured creditors are successful in that appeal.  The appeal seeks review of the
bankruptcy court's ruling concerning DCR PCS and Pocket Communications
permitting DCR PCS to file its election notice, which ultimately resulted in the
return of these licenses to the FCC, over the objection of the secured creditors
of DCR PCS and Pocket Communications.  Viper Wireless filed an opposition to the
petition on June 15, 1999.  All these licenses are C-Block licenses and are
subject to the same restrictions as our current C-Block licenses. To the extent
such licenses are not finally granted to us, we may face additional competitors
in our markets.

  In the future, the FCC may auction additional spectrum, including 36 MHz of
spectrum near the cellular band in the year 2000.

                                      -19-
<PAGE>

We could lose our F-Block and C-Block licenses if we fail to meet financial and
other tests.

  TeleCorp Holding participated in the FCC's auction of F-Block licenses as a
"very small business," and TeleCorp Holding must remain a "very small business"
for at least five years to comply with applicable rules of the FCC. TeleCorp
Holding will also acquire certain C-Block businesses in connection with the
Louisiana acquisitions, which are subject to the same regulations. Viper
Wireless participated in the FCC's reauction of C-Block licenses as a "very
small business," and Viper Wireless is subject to the same regulations. The
FCC combines the gross revenues and assets of the applicant or licensee and the
applicant's or licensee's "financial affiliates" to determine whether an
applicant or a licensee qualifies as a "very small business." An entity may be a
"financial affiliate" of an applicant or licensee as a result of common
investments, contractual relationships, joint venture agreements, voting trusts,
stock ownership, ownership of stock options or convertible securities,
agreements to merge or familial relationships. In addition, the FCC may consider
an entity with which an applicant or licensee has formed a "joint venture," as
defined by the FCC, to be a "financial affiliate" of the applicant or licensee
under certain circumstances. Holders of an ownership interest in an applicant or
licensee below certain thresholds are "passive" investors, and such holders are
not "financial affiliates" of the applicant or licensee. Moreover, the FCC will
not attribute to an applicant or licensee the gross revenues and assets of an
entity that makes a bona fide loan to the applicant or licensee unless such
entity is otherwise an affiliate of the applicant or if the FCC treats the loan
as an equity investment. The FCC also requires applicants and licensees with
certain ownership structures, such as ours, to cause certain investors who have
certain financial qualifications to form a "control group." Such a control group
must:

     .  hold not less than 25% of the applicant's or licensee's equity on a
        fully diluted basis;

     .  hold a majority of the applicant's or licensee's total voting stock; and

     .  have both actual and legal control of the applicant or licensee.

  We believe that our capital structure and our ownership structure allow us to
maintain our status as a "very small business" and to satisfy the FCC's
requirements regarding the presence of a "control group."  The FCC reviewed our
capital and ownership structures, as well as the filings required in connection
with the formation of the venture between us and AT&T, as part of our
application for our F-Block licenses. The FCC has granted all our F-Block
licenses to us by "final order" and has not taken any action to challenge our
capital structure or ownership structure under the rules applicable to "very
small businesses," the rules of "financial affiliation" or the rules relating to
the presence of a "control group." The FCC or another party may challenge our
capital or ownership structure under any of these rules in the future, and our
capital structure or ownership structure, our relationship with AT&T, our
financial affiliations with other entities or the loans from Lucent may be found
to violate these rules. If we were found to be in violation of these rules, the
FCC could impose substantial penalties upon us or TeleCorp Holding, such as a
fine, revocation of our PCS licenses, acceleration of installment payment
obligations or retroactive loss of bidding credits. For example, the FCC could
require that TeleCorp Holding repay all debt owed to the U.S. government in
respect of the award of certain F-Block and C-Block licenses to TeleCorp
Holding, restrict or revoke our F-Block and C-Block licenses or refuse to grant
similar licenses to us in the future. See "--Government regulation, changes in
our licenses and other governmental action could adversely affect us" and
"Business--Government Regulation." The imposition of any of these financial or
regulatory penalties could materially adversely affect us.

  The FCC has adopted regulations that require companies who have acquired
licenses to provide wireless communications services to meet certain minimum
requirements regarding the construction of their networks. For example,
licensees of 30 MHz Blocks (such as the A-Block, B-Block and C-Block) are
required to offer a signal level that provides adequate service to at least one-
third of the population in their licensed area within five years of receipt of
the license, and to at least two-thirds of such population within ten years of
receipt of the license. Licensees of 10 MHz Blocks (such as the D-Block, E-Block
and F-Block) are required to offer a signal level that provides adequate service
to at least one-quarter of the population in their licensed area within five
years of receipt of the license, or to show substantial service in the licensed
area within five years of receipt of the license.  The FCC has ruled that
disaggregated 15 MHz licenses such as those acquired in the FCC's reauction of
C-Block and other licenses are subject to the same build-out requirements as 10
MHz Blocks.  See "--Government regulation, changes in our licenses or other
governmental action could adversely affect us" and "Business--Government
Regulation." The FCC could fine us or revoke our licenses if we do not meet such
requirements. After giving effect to final grant of the Viper Wireless licenses,
we will own A-Block, B-Block, C-Block, D-Block and F-Block licenses. A fine or
the revocation of any of our licenses could materially adversely affect us.

Changes in technology and customer demands could adversely affect us.

  We use the TDMA technology standard in our network. Other digital
technologies, such as CDMA and GSM, may have significant advantages over TDMA.
If the marketplace demands the advantages of other digital technologies or if
alternative

                                      -20-
<PAGE>

technologies emerge in the marketplace, we may need to purchase and install
equipment necessary to allow migration from TDMA to these technologies or change
our choice of technology to compete in the marketplace. We may not be able to
purchase and install successfully the equipment necessary to allow for migration
to a new or different technology or to adopt a new or different technology at an
acceptable cost, if at all.

  The wireless communications services industry is experiencing rapid
technological change, evidenced by the pace of digital upgrades in existing
analog systems, evolution of industry standards, ongoing improvements in the
capacity and quality of digital technology, decrease in the time needed for new
products to come to market and enhancements and changes in the requirements and
preferences of consumers. In addition, industry groups are in the process of
developing standards for the next generation of wireless services. While we
believe that TDMA users will be able to migrate to the next generation systems,
this may not be the case. We will need to develop and implement new technologies
to increase our service offering and cost effectiveness to remain competitive.
The development and implementation of new technologies is highly complex and
uncertain, and we may experience delays in developing or implementing new
technologies. If we are unable to develop and implement new technologies, we may
not be able to compete effectively. An inability to develop and implement new
technologies to meet customer demands and to compete effectively could
materially adversely affect us.

We expect to incur operating costs due to fraud.

  Based upon the experiences of other providers of wireless communications
services, we expect to incur costs as a result of the unauthorized use of our
network. These costs include the capital and administrative costs associated
with detecting, monitoring and reducing the incidence of fraud and the costs
associated with payments to other providers of wireless communications services
for "unbillable" fraudulent roaming on their networks. If we are unsuccessful in
our efforts to control the unauthorized use of our network, or if we experience
unanticipated types of fraud, our business could be materially adversely
affected.

Use of hand-held phones may pose health and safety risks.

  Media reports have suggested that certain radio frequency emissions from
wireless handsets may be linked to certain health concerns, including the
incidence of cancer. Data gathered in studies performed by manufacturers of
wireless communications equipment dispute these media reports. Further, a major
industry trade association and certain governmental agencies have stated
publicly that the use of wireless handsets does not pose any undue health risks.
Nevertheless, concerns regarding radio frequency emissions could have the effect
of discouraging the use of wireless handsets, which could materially adversely
affect us.

  The FCC recently revised the rules specifying the methods to be used in
evaluating radio frequency emissions from radio equipment, including wireless
handsets. The hand-held digital telephones that we offer to our customers comply
with the standards adopted under the new rules. These handsets may not comply
with any rules adopted by the FCC in the future. The failure of these handsets
to remain in compliance with applicable FCC rules and standards could materially
adversely affect us.

  Recent studies have shown that hand-held digital telephones interfere with
certain medical devices, including hearing aids and pacemakers. The University
of Oklahoma Center for the Study of Wireless Electromagnetic Compatibility,
together with industry trade associations and other interested parties, are
currently studying the extent of, and possible solutions to, this interference.
If these studies demonstrate significant interference or create public concern
about interference, the results of such studies could materially adversely
affect us.

  Measures that would (1) require "hands free" use of cellular phones while
operating motor vehicles, (2) ban cellular phone use while driving, (3) limit
the length of calls while driving or (4) require people to pull to the side of
the road to use cellular phones while driving, have been proposed or are being
considered in 12 state legislatures.  Three states have passed legislation
concerning cellular phones while driving.  California requires rental cars with
cell phones to include written operating instructions concerning safe use.
Florida permits cellular phone use as long as the motorist has one ear free to
hear surrounding sound.  Massachusetts allows cellular phone use as long as it
does not interfere with the safe operation of the vehicle and as long as the
motorist keeps one hand on the steering wheel at all times.  In addition,
certain commissions and municipalities have passed restrictions on cellular
phone use while driving.  In New York, New York, the New York City Taxi and
Limousine Commission approved a regulation that bans taxi drivers from dialing
and talking while driving and requires taxi drivers to pull over to the curb and
be legally parked before using cellular phones. In  Brooklyn, Ohio, it is a
misdemeanor to use a cellular phone while driving unless both hands are on the
steering wheel.   We cannot predict the success of the proposed laws concerning
car phone use or the effect on use of cellular phones as a result of the
publicity surrounding or passage of such laws.  In addition, more restrictive
measures or measures aimed at wireless services companies as opposed to users
may be proposed or passed in state legislatures in the future.  The passage or
proliferation of such legislation could materially adversely affect us.

                                      -21-
<PAGE>

The Notes are subordinate to other debt that encumbers our assets.

  The right to payment on the Notes is subordinate to all of our existing and
future senior debt. Similarly, each subsidiary guarantee of the Notes is
subordinate to all existing and future senior debt of the applicable guarantor.
In the event of a bankruptcy, liquidation, dissolution, reorganization or
similar proceeding with respect to us or any guarantor, our or such guarantor's
assets will be available to pay obligations on the Notes or the applicable
guarantee only after all outstanding senior debt of such party has been paid in
full. There may not be sufficient assets remaining to make payments on amounts
due on any or all of the Notes then outstanding or any subsidiary guarantee. In
addition, under certain circumstances, an event of a default in the payment of
certain senior debt will prohibit us and the guarantors of the Notes from paying
the Notes or the guarantees of the Notes.  As of March 31, 1999, after giving
effect to the Transactions:

     .  our outstanding senior debt would have been approximately $225.0 million
        (excluding unused commitments under our senior credit facilities and
        additional senior indebtedness for our subsidiaries); and

     .  the outstanding senior debt of our subsidiary guarantor would have been
        approximately $225.0 million (consisting entirely of guarantees of
        borrowings under our senior credit facilities, but excluding unused
        commitments thereunder).

  In addition, certain of our subsidiaries will not guarantee the Notes. In the
event of a bankruptcy, liquidation, dissolution, reorganization or similar
proceeding with respect to any of these subsidiaries, the assets of these
subsidiaries will be available to pay obligations on the Notes only after all
outstanding liabilities of such subsidiaries has been paid in full. As of March
31, 1999, after giving effect to the Transactions, the total liabilities of
these subsidiaries would have been approximately $320.8 million, consisting of
debt owed to the U.S. government related to our licenses in the approximate
amount of $20.7 million, trade payables in the approximate amount of
$24.8 million, accrued and other expenses in the approximate amount of $4.1
million and intercompany amounts payable in the approximate amount of $274.4
million. The U.S. government debt is shown on our balance sheet net of discounts
of $3.2 million reflecting the below market interest rates on the debt.

  Although the indenture governing the Notes limits the amount of debt we and
certain of our subsidiaries may incur, the amount of such debt could be
substantial and could be senior debt. See "Description of the Notes."

  The Notes and the guarantees of the Notes are unsecured. Thus, the Notes and
the guarantees of the Notes rank junior in right of payment to any of our
secured debt or the secured debt of the guarantors of the Notes to the extent of
the value of the assets securing such debt. Such debt includes debt incurred
under our senior credit facilities, which is secured by liens on substantially
all of our assets and those of our subsidiaries. If an event of default were to
occur under our senior credit facilities, the lenders could foreclose on such
collateral regardless of any default with respect to the Notes. Such assets
would first be used to repay in full all amounts outstanding under our senior
credit facilities. The use in the wireless communications services business of
our licenses and the infrastructure equipment used in our network creates the
value of such assets. These assets are highly specialized and, taken
individually, have limited marketability. Consequently, in the event the lenders
under our senior credit facilities foreclose on the collateral securing our
debt, these assets are likely to be sold as an entirety. The need to obtain FCC
approval and comply with applicable governmental regulations could reduce the
value obtained for these assets.

We depend upon our subsidiaries for funds necessary to make payments on the
Notes.

  We conduct almost all of our operations through our subsidiaries. As a result,
we depend upon dividends from our subsidiaries for the funds necessary to make
payments on the Notes. The indenture governing the Notes limits restrictions on
the ability of certain of our subsidiaries to pay dividends or make certain
other distributions. Nonetheless, our senior credit facilities restrict the
ability of these subsidiaries to pay dividends or make other distributions. In
addition, there can be no assurance that any such dividends or distributions
will be adequate to allow us to make payments on the Notes.

Federal and state statutes allow courts, under specific circumstances, to void
the Notes and the guarantees of the Notes.

  Although guarantees of the Notes provide the holders of the Notes with a
direct claim against the assets of the applicable guarantor, creditors of a
bankrupt guarantor may challenge such guarantee. If such a challenge were
upheld, then the applicable guarantee would be invalid and unenforceable.
Without the benefit of any guarantees, holders of the Notes would be junior to
all creditors, including trade creditors, of our subsidiaries. As of March 31,
1999, after giving effect to the Transactions, the total liabilities of our
subsidiaries who do not guarantee the Notes would have been approximately $320.8
million, consisting of debt owed to the U.S. government related to our licenses
in the approximate amount of $20.7 million, trade payables in the approximate
amount of $24.8 million, accrued and

                                      -22-
<PAGE>

other expenses in the approximate amount of $4.1 million and intercompany
amounts payable in the approximate amount of $274.4 million. The U.S. government
debt is shown on our balance sheet net of discounts of $3.2 million reflecting
the below market interest rates on the debt.

  The creditors of a bankrupt guarantor could challenge a guarantee on the
grounds that the guarantee constituted a "fraudulent conveyance" under
bankruptcy law. If a court were to rule that a guarantor:

     .  incurred a guarantee to delay, hinder or defraud present or future
        creditors;

     .  received less than reasonably equivalent value or fair consideration for
        incurring the guarantee; and

     .  at the time of incurring the guarantee, the guarantor:

        .  was insolvent or rendered insolvent by reason of the guarantee;

        .  was engaged, or about to engage, in a business or transaction for
           which its remaining unencumbered assets were unreasonably small; or

        .  intended to, or believed it would, incur debts greater than it could
           pay as they become due

then the court could void the obligations under the guarantee or subordinate the
guarantee to other debt of such guarantor or take other action detrimental to
the holders of the Notes. In addition, any of the guarantees of the Notes could
be subject to the claim that, since such guarantee was incurred for our benefit
and only indirectly for the benefit of our subsidiary that provided the
guarantee, the obligations of the applicable guarantor were incurred for less
than fair consideration.

Our debt instruments could restrict our business plans.

  The indenture governing the Notes restricts our ability and the ability of
certain of our subsidiaries to engage in certain transactions. In addition, our
senior credit facilities require us to maintain certain ratios, including
leverage ratios, an interest coverage ratio and a fixed charges ratio, and to
satisfy certain tests, including tests relating to minimum covered Pops, minimum
number of subscribers to our services and minimum aggregate service revenue per
subscriber. The vendor financing provided by Lucent also restricts our ability
and the ability of our subsidiaries to do the following:

     .  create liens;

     .  make certain payments, including payments of dividends and distributions
        in respect of capital stock;

     .  consolidate, merge and sell assets;

     .  engage in certain transactions with affiliates; and

     .  fundamentally change our business.

  See "Description of the Notes--Certain Covenants," "Certain Indebtedness--
Senior Credit Facilities" and "--Vendor Financing."

  The restrictions contained in the indenture governing the Notes, and the
restrictions contained in our senior credit facilities and the vendor financing
provided by Lucent, may limit our ability to implement our business plan,
finance future operations, respond to changing business and economic conditions,
secure additional financing, if needed, and engage in opportunistic
transactions. Moreover, we may not satisfy the financial ratios and tests under
our senior credit facilities due to events that are beyond our control. The
failure to satisfy any of the financial ratios and tests could result in a
default under our senior credit facilities. Following a default under our senior
credit facilities, the lenders could declare all amounts outstanding to be
immediately due and payable. If we could not repay such amounts, the lenders
could foreclose on the collateral granted to them to secure such indebtedness.
See "--The Notes are subordinate to other debt that encumbers our assets." If
the lenders accelerated the indebtedness outstanding under our senior credit
facilities, there can be no assurance that we could repay such indebtedness, and
there can be no assurance that we could pay amounts due in respect of our other
indebtedness with our remaining assets, including the Notes. See "Certain
Indebtedness--Senior Credit Facilities" and "Description of the Notes--Ranking."

                                      -23-
<PAGE>

Holders of the Notes may face tax and bankruptcy concerns.

  We issued the Notes at a substantial discount from their principal amount at
maturity. Original issue discount (i.e., the difference between the "stated
redemption price at maturity" of the Notes, including all cash payments of
principal and interest, and the "issue price" of the Notes) accrues from the
original issue date of the Notes and will be included in a holder's gross income
for federal income tax purposes before the holder receives the cash payment of
such interest. See "Certain U.S. Federal Tax Considerations--Tax Consequences to
U.S. Holders." U.S. federal income tax law may postpone or limit our deduction
of interest or original issue discount. See "Certain U.S. Federal Tax
Considerations--Applicable High Yield Discount Obligations." U.S. federal income
tax law limits the use of corporate net operating loss carryforwards following
certain ownership changes in a corporation which may limit our ability to use
the net operating loss carryforwards we have experienced or acquired to date to
reduce future tax liabilities.

  If a bankruptcy case were commenced by or against us under the U.S. Bankruptcy
Code, the claim of a holder of the Notes with respect to the principal amount of
such Notes may be limited to an amount equal to the sum of the initial offering
price and that portion of the original issue discount that is not deemed to
constitute "unmatured interest" for purposes of the U.S. Bankruptcy Code. Any
original issue discount that had not amortized as of the date of any such
bankruptcy filing could constitute "unmatured interest" for purposes of the U.S.
Bankruptcy Code. To the extent that the U.S. Bankruptcy Code differs from the
Internal Revenue Code in determining the method of amortization of original
issue discount, a holder of the Notes may recognize taxable gain or loss upon
payment of such holder's claim in bankruptcy.

We may not be able to satisfy our obligations owed to the holders of the Notes
upon a change of control.

  Upon the occurrence of a "change of control" as defined in the indenture
governing the Notes, each holder of the Notes will have the right to require us
to repurchase such holder's Notes at a price equal to 101% of the accreted value
of such Notes or the principal amount at maturity, as applicable, together with
accrued and unpaid interest to the date of repurchase. Certain events which
would constitute a change of control under the indenture governing the Notes
would also constitute a default under our senior credit facilities. In addition,
our senior credit facilities effectively prevent the repurchase of the Notes by
us in the event of our change of control unless all amounts outstanding under
our senior credit facilities are repaid in full. Our failure to repurchase the
Notes would be a default under the indenture governing the Notes, which would be
a default under our senior credit facilities. The inability to repay all
indebtedness outstanding under our senior credit facilities upon acceleration
would also be a default under the indenture governing the Notes. Any default
under our senior credit facilities or the indenture governing the Notes would
materially adversely affect our business, operations and financial results as
well as the market price of the Notes. In the event of a change of control, we
may not have sufficient assets to satisfy all obligations under our senior
credit facilities and the indenture governing the Notes. Any debt we incur in
the future may also prohibit certain events or transactions that would
constitute a change of control under the indenture governing the Notes. See
"Certain Indebtedness--Senior Credit Facilities" and "Description of the Notes--
Change of Control."

  We may enter into transactions, including acquisitions, refinancings or
recapitalizations, or highly leveraged transactions, that do not constitute a
change of control under the indenture governing the Notes. Any of these
transactions may result in an increase in our debt or otherwise affect our
capital structure, harm our credit ratings or have a material adverse affect on
holders of the Notes. See "Description of the Notes--Change of Control."

This prospectus contains forward-looking statements that may be incorrect.

  All statements in this prospectus that are not statements of historical facts
are forward-looking statements. Forward-looking statements concern our strategy,
future operations, technical capabilities, construction plan and schedule,
commercial operations schedule, funding needs, prospective acquisitions or joint
ventures, financing sources, pricing, future regulatory approvals, markets, size
of markets for wireless communications services, financial position, estimated
revenues, projected costs, prospects, plans and objectives of management, as
well as information concerning expected actions of third parties such as
equipment suppliers, service providers and roaming partners, and expected
characteristics of competing systems. Although we believe that the expectations
underlying such forward-looking statements are reasonable, forward-looking
statements are inherently speculative, and they may be incorrect. Our business,
operations and financial results may differ materially from the expectations
expressed or implied in the forward-looking statements in this prospectus. You
should consider carefully the factors described in this section and the other
information in this prospectus before deciding to exchange the Notes.

  The information set forth under "Business--Network Development," other than
historical information, the statements in this prospectus regarding the years
during which we expect to continue to incur significant operating losses and to
generate negative cash flow from operating activities and the statements in this
prospectus regarding our anticipated capital needs are forward-looking
statements based upon a number of specific assumptions. These assumptions
include the following:

                                      -24-
<PAGE>

     .  we will not incur any unanticipated costs in the construction of our
        network;

     .  we will be able to compete successfully in each of our markets;

     .  demand for our services will meet wireless communications industry
        projections;

     .  our network will satisfy the requirements set forth in our agreements
        with AT&T and support the services we expect to provide;

     .  the capacity of our network will be sufficient to meet the level of
        service reflected in our business plan;

     .  we will be successful in working with AT&T and the other SunCom
        companies, as well as with other providers of wireless communications
        services and roaming partners, to ensure effective marketing of our
        network and the services we intend to offer;

     .  there will be no change in any governmental regulation or the
        administration of existing governmental regulations that requires a
        material change in the operation of our business; and

     .  there will be no change in any of our material contracts that adversely
        affects us.

  Although we believe that these assumptions are reasonable, they may be
incorrect. If one or more of these assumptions is incorrect, our business,
operations and financial results may differ materially from the expectations,
expressed or implied, in the forward-looking statements in this prospectus.

If holders fail to exchange the Old Notes for the Exchange Notes, it may weaken
the market for the unexchanged Old Notes, as well as for the Exchange Notes.

  We will issue the Exchange Notes in exchange for the Old Notes, only after
timely receipt by the Exchange Agent of such Old Notes, a properly completed and
duly executed Letter of Transmittal and all other required documentation.
Holders of the Old Notes desiring to tender such Old Notes in exchange for the
Exchange Notes should allow sufficient time to ensure timely delivery.  Neither
we nor the Exchange Agent is under any duty to notify holders of defects or
irregularities with respect to tenders of the Old Notes for exchange.  The Old
Notes that are not tendered or are tendered but not accepted will, following
consummation of the Exchange Offer, continue to be subject to the existing
restrictions upon transfer.  In addition, any holder of the Old Notes who
tenders in the Exchange Offer to distribute the Exchange Notes must comply with
the registration and prospectus delivery requirements of the Securities Act in
connection with any resale transaction.  Each broker-dealer that receives the
Exchange Notes for its own account in exchange for the Old Notes, where such
broker-dealer acquired such Old Notes as a result of market-making activities or
any other trading activities, must acknowledge that it will deliver a prospectus
in connection with any resale of such Exchange Notes.  To the extent that the
Old Notes are tendered and accepted in the Exchange Offer, the trading market
for untendered and tendered but unaccepted Old Notes could be adversely affected
due to the limited amount, or "float," of the Old Notes that are expected to
remain outstanding following the Exchange Offer.  Generally, a lower "float" of
a security could result in less demand to purchase such security and could
result in lower prices for such security.  For the same reasons, to the extent
that a large amount of the Old Notes are not tendered or are tendered and not
accepted in the Exchange Offer, the trading market for the Exchange Notes could
be adversely affected.  See "The Exchange Offer" and "Plan of Distribution."

There is no public market for the Notes and there are restrictions on the resale
of the Notes.

  As of the date hereof, the only registered holder of the Old Notes is Cede &
Co., as its nominee.  We believe that, as of the date hereof, such holder is not
our "affiliate," as such term is defined in Rule 405 under the Securities Act.
Prior to the private offering of the Old Notes, there had been no market for the
Notes.  We cannot ensure that there will be a liquid trading market for the
Notes, or any market at all.  We do not intend to list the Exchange Notes on any
securities exchange, but the Old Notes have been designated for trading in the
PORTAL Market.  The Exchange Notes are new securities with no established
trading market.  The Exchange Notes may trade at a discount from their initial
offering price, depending upon prevailing interest rates, the market for similar
securities, our performance and other factors.  Chase Securities Inc. ("CSI"),
one of the initial purchasers of the Old Notes, has told us that they intend to
make a market in the Exchange Notes, as well as the Old Notes, as the law
permits.  CSI is not obligated to make a market, and may discontinue any such
activities at any time without notice.  In addition, CSI may limit any market-
making activities during the Exchange Offer and the pendency of the Shelf
Registration Statement, as defined in the

                                      -25-
<PAGE>

"The Exchange Offer-Terms of the Exchange Offer." We cannot ensure that an
active market for the Notes will develop. See "The Exchange Offer" and "Plan of
Distribution."

                                      -26-
<PAGE>

                                USE OF PROCEEDS

  We will not receive proceeds from the Exchange Offer.  The net proceeds from
the offering of the Old Notes, after deducting the initial purchasers' discounts
and estimated fees and expenses payable by us, were approximately $317.0
million.  We used $40.0 million of the net proceeds to repay vendor financing
from Lucent.  We intend to use the remaining net proceeds from the offering of
the Old Notes, together with proceeds from sales of our equity securities,
borrowings under our senior credit facilities, other vendor financing provided
by Lucent and internally generated cash, to fund capital expenditures,
acquisitions of PCS licenses, operating losses and other working capital
requirements. See "Business--Network Development" and "Management's Discussion
and Analysis of Financial Condition and Results of Operations--Liquidity and
Capital Resources."



                                      -27-
<PAGE>

                                 CAPITALIZATION

  The following table sets forth as of March 31, 1999 (1) our historical
capitalization and (2) our capitalization giving pro forma effect to the
Transactions, derived from our unaudited pro forma balance sheet included
elsewhere in this prospectus. This table should be read in conjunction with
"Selected Historical and Pro Forma Consolidated Financial Information,"
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" and our Consolidated Financial Statements and the notes to such
documents included elsewhere in this prospectus.

<TABLE>
<CAPTION>
                                                                                             As of March 31, 1999
                                                                                         ---------------------------
                                                                                             Actual      Pro Forma
                                                                                         ------------  -------------
<S>                                                                                      <C>           <C>
                                                                                             (dollars in millions)
Cash and cash equivalents..................................................................     $ 11.2      $ 230.0
                                                                                              --------    ---------
Debt:
   Government license obligations (a)......................................................     $  8.0      $  17.5
   Senior credit facilities (b)............................................................      225.0        225.0
   Senior subordinated Notes (c)...........................................................         --        327.6
   Vendor financing (d)....................................................................       60.9         40.8

       Total debt..........................................................................      293.9        610.9
                                                                                              --------    ---------

Mandatorily redeemable preferred stock (e).................................................      245.1        362.6
   Preferred stock subscriptions receivable and other items (f)............................      (72.4)      (149.8)
                                                                                              --------    ---------

       Mandatorily redeemable preferred stock, net.........................................      172.7        212.8
Stockholders' deficit (g)..................................................................      (99.5)       (99.4)
                                                                                              --------    ---------

Total capitalization.......................................................................     $367.1      $ 724.3
                                                                                              ========    =========
</TABLE>

______________
(a) Includes government license obligations in the amount of $9.5 million
    related to the F-Block licenses and the C-Block licenses we have acquired as
    part of the Transactions. This debt is shown on our balance sheet net of
    discounts of $2.0 million reflecting the below market interest rate on the
    debt.

(b) Our senior credit facilities provide up to $525.0 million of term loan and
    revolving credit financing. As of March 31, 1999, we had drawn $225.0
    million under our senior credit facilities. See "Certain Indebtedness--
    Senior Credit Facilities."

(c) Represents the gross proceeds of $327.6 million from the sale of 11 5/8%
    Senior Subordinated Discount Notes due 2009 on April 23, 1999, excluding
    offering expenses and the repayment of Lucent Series B Notes.

(d) As of March 31, 1999, the total amount of Series A and Series B notes
    outstanding, including $0.5 million of interest paid-in-kind, was $40.5
    million, plus $0.3 million of additional accrued interest, and $20.1
    million, respectively.  In addition, Lucent purchased $20.0 million of
    Series B junior subordinated notes in April 1999.  The full amount of such
    Series B notes were repaid with the proceeds of the offering of the old
    Notes.  In connection with the acquisition of licenses and related assets
    from AT&T in Puerto Rico, Lucent has committed to purchase $15.0 million of
    additional junior subordinated notes.  Lucent has also committed to purchase
    up to an additional $65.0 million of such notes in connection with our
    development of new markets.  See "Certain Indebtedness--Vendor Financing."

(e) Represents mandatorily redeemable preferred stock issued or to be issued to
    AT&T, Chase Capital Partners, Desai Capital Management Incorporated, Hoak
    Capital Corporation, J.H. Whitney III, L.P., M/C Partners, Entergy
    Corporation, Northwood Ventures, LLC, One Liberty Ventures, LLC, Toronto
    Dominion Capital (USA), Wireless 2000, Digital PCS and stockholders of
    TeleCorp Holding.

(f) Preferred stock subscriptions receivable and other items is comprised of the
    following:

<TABLE>
<CAPTION>
                                                                                               As of March 31, 1999
                                                                                        ---------------------------------
                                                                                              Actual        Pro Forma
                                                                                        ---------------  ----------------
     <S>                                                                                <C>               <C>
     Deferred Compensation...........................................................     $    (11,078)   $    (304,514)
     Treasury Stock..................................................................              (12)             (12)
     Preferred Stock subscriptions receivable........................................      (72,413,769)    (149,499,135)
                                                                                         -------------   --------------
                                                                                          $(72,424,859)   $(149,803,661)
                                                                                         =============   ==============
</TABLE>

                                      -28-
<PAGE>

(g) Stockholders' deficit is comprised of the following:

<TABLE>
<CAPTION>
                                                                                         As of March 31, 1999
                                                                                 ---------------------------------
                                                                                        Actual       Pro Forma
                                                                                 ---------------------------------
     <S>                                                                         <C>              <C>
     Series F preferred stock................................................     $        333    $        482
     Common stock............................................................            1,597           2,431
     Additional paid-in capital..............................................          187,498         433,908
     Deferred compensation...................................................           (5,306)        (25,015)
     Common stock subscriptions receivable...................................          (86,221)       (283,455)
     Treasury stock..........................................................              (26)            (26)
     Accumulated deficit.....................................................      (99,562,287)    (99,562,287)
                                                                                 -------------    ------------
                                                                                  $(99,464,412)   $(99,433,962)
                                                                                 =============    ============
</TABLE>

                                      -29-
<PAGE>

      SELECTED HISTORICAL AND PRO FORMA CONSOLIDATED FINANCIAL INFORMATION

  The selected historical consolidated financial information presented below as
of March 31, 1999, for the period from inception on July 29, 1996 to December
31, 1996, for the years ended December 31, 1997 and 1998, and for the three
months ended March 31, 1998 and 1999, has been derived from our and our
predecessor's consolidated financial statements and the related notes included
elsewhere in this prospectus.  The unaudited pro forma per share statement of
operations data and any other data for the period from inception on July 29,
1996 to December 31, 1996, for the years ended December 31, 1997 and 1998, and
for the three months ended March 31, 1998 and 1999, and the unaudited pro forma
balance sheet data as of March 31, 1999, are derived from the unaudited pro
forma financial data included elsewhere in this prospectus, and give effect to
the Transactions, as if they had occurred on March 31, 1999.  The unaudited pro
forma financial data presented do not purport to represent what our results of
operations and financial condition actually would have been or what our
operations in any future period would be if the Transactions had occurred on the
date assumed.  The selected historical and pro forma data below should be read
in conjunction with "Management's Discussion and Analysis of Financial Condition
and Results of Operations" and our and our predecessor's audited and unaudited
consolidated financial statements and notes to such statements and our unaudited
pro forma balance sheet and notes to such balance sheet included elsewhere in
this prospectus.


<TABLE>
<CAPTION>
                                              For the period July 29,                       For the year ended  For the three month
                                                1996 (inception) to    For the year ended      December 31,        period ended
                                                 December 31,  1996    December 31,  1997          1998           March 31, 1998
                                                                                                                    (unaudited)
                                             -----------------------  -------------------  -------------------  -------------------
<S>                                          <C>                      <C>                  <C>                  <C>
Statements of Operations Data:
 Service revenue.........................            $           -     $              -     $              -    $            -
 Equipment revenue.......................                        -                    -                    -                 -
 Roaming revenue.........................                        -                    -               29,231                 -
                                                    --------------     ----------------     ----------------    --------------
 Total revenue...........................            $           -     $              -     $         29,231                 -
                                                    --------------     ----------------     ----------------    --------------

 Operating expense:
  Cost of revenue........................                        -                    -                    -                 -
  Operations and development.............                        -                    -            9,772,485                 -
  Selling and marketing..................                    9,747              304,062            6,324,666           369,392
  General and administrative.............                  515,146            2,637,035           26,239,119         2,246,456
  Depreciation and amortization..........                       75               10,625            1,583,864            39,129
                                                    --------------     ----------------     ----------------    --------------

     Total operating expense.............                  524,968            2,951,722           43,920,134        2,654,977
                                                    --------------     ----------------     ----------------    -------------

     Operating loss......................                 (524,968)          (2,951,722)         (43,890,903)      (2,654,977)

 Other (income) expense:
  Interest expense.......................                        -              396,362           11,934,263          132,400
  Interest income........................                        -              (12,914)          (4,697,233)         (42,256)
  Other expense..........................                        -                    -               27,347                -
                                                    --------------     ----------------     ----------------    -------------

     Net loss............................            $    (524,968)    $     (3,335,170)    $    (51,155,280)   $  (2,745,121)
     Accretion of mandatorily redeemable
      preferred stock                                $    (288,959)    $       (725,557)    $     (8,566,922)   $    (103,608)
                                                    --------------     ----------------     ----------------    -------------
     Net loss attributable to common equity          $    (813,927)    $     (4,060,727)    $    (59,722,202)   $  (2,848,729)
                                                    ==============     ================     ================    =============

Other Data:
 Ratio of earnings to fixed charges (a)..                        -                    -                    -                -

<CAPTION>
                                                      For the three month
                                                         period ended
                                                        March 31,  1999
                                                         (unaudited)
                                                     ---------------------
<S>                                                  <C>
Statements of Operations Data:
 Service revenue.................................     $       507,285
 Equipment revenue...............................           1,815,224
 Roaming revenue.................................           1,940,317
                                                      ---------------
 Total Revenue...................................     $     4,262,826
                                                      ---------------

 Operating expense:
  Cost of revenue................................           2,829,448
  Operations and development.....................           7,352,578
  Selling and marketing..........................           8,040,922
  General and administrative.....................          10,278,338
  Depreciation and amortization..................           3,052,980
                                                      ---------------

     Total operating expense.....................          31,554,266
                                                      ---------------

     Operating loss..............................         (27,291,440)

 Other (income) expense:
  Interest expense...............................           3,715,129
  Interest income................................            (741,429)
  Other expense..................................              70,187
                                                      ---------------

     Net loss....................................     $   (30,335,327)
     Accretion of mandatorily redeemable
      preferred stock                                 $    (4,630,104)
                                                      ---------------
     Net loss attributable to common equity           $   (34,965,431)
                                                      ===============

Other Data:
 Ratio of earnings to fixed charges (a)..........                   -
</TABLE>

<TABLE>
<CAPTION>
                                                                                      As of March 31, 1999
                                                                               ---------------------------------
                                                                                    Actual          Pro Forma
                                                                               ---------------   ---------------
<S>                                                                            <C>               <C>
Balance Sheet Data:
  Cash and cash equivalents.................................................   $   11,210,696    $  230,047,360
  Property and equipment, net...............................................      262,653,787       270,653,787
  PCS licenses and microwave relocation costs...............................      117,531,516       235,142,756
  Intangible assets -AT&T Agreements, net...................................       25,369,334        42,679,334
  Total assets..............................................................      457,903,537       815,173,777
  Total debts...............................................................      293,889,463       610,978,893
  Mandatorily redeemable preferred stock....................................      245,131,494       362,660,656
  Mandatorily redeemable preferred stock, net (b)(c)........................      172,706,635       212,856,995
  Total stockholders' deficit...............................................   $  (99,464,412)   $  (99,433,962)
</TABLE>

(a) The ratio of earnings to fixed charges is computed by dividing fixed charges
    into income before taxes plus fixed charges. Fixed charges include interest
    expense and that portion of rental expense (one-third) attributable to the
    interest factor. On this basis, earnings before fixed charges for the period
    ended December 31, 1996, for the years ended December 31, 1997 and 1998 and
    for the three months ended March 31, 1998 and 1999 were not adequate to
    cover fixed charges by $525,635, $3,915,262, $66,208,919, $3,136,577 and
    $36,612,156, respectively.

(b) Net of treasury stock, deferred compensation and preferred stock
    subscription receivable of $12, $11,078, and $72,413,769 respectively, as of
    March 31, 1999.

(c) Net of treasury stock, deferred compensation and preferred stock
    subscription receivable of $12, $304,514, and $149,499,135, respectively, as
    of March 31, 1999 on a pro forma basis.





                                      -30-
<PAGE>

               MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                      CONDITION AND RESULTS OF OPERATIONS


Overview

History

  TeleCorp Holding was incorporated on July 29, 1996 to participate in the FCC's
auction of F-Block PCS licenses in April 1997 as a "designated entity" and "very
small business," as defined by the FCC. TeleCorp Holding obtained PCS licenses
in the New Orleans, Memphis, Beaumont and Little Rock BTAs, and certain other
licenses that were subsequently transferred to unrelated entities.

  TeleCorp PCS, Inc. was incorporated on November 14, 1997 by the controlling
stockholders of TeleCorp Holding. In January 1998, we entered into a venture
with AT&T under which AT&T contributed certain PCS licenses to us in exchange
for an equity interest in TeleCorp and sold additional PCS licenses to us for
$21.0 million. In July 1998, we received final FCC approval for the venture and,
in connection with the consummation of the venture, we entered into exclusivity,
licensing, roaming and long distance agreements. We are AT&T's exclusive
provider of facilities-based mobile wireless communications services in our
licensed markets and we use the AT&T brand name and logo together with the
SunCom name and logo, giving equal emphasis to each. In addition, TeleCorp
Holding became a wholly owned subsidiary of TeleCorp.

  In the first quarter of 1999, we commenced commercial operations in each of
our major domestic markets, after having launched our New Orleans market for
roaming services in late December 1998. Accordingly, for periods prior to 1999
we were a development stage company. We plan to launch our service in our Puerto
Rico markets during the third quarter of 1999.

  We recently acquired 10 MHz F-Block PCS licenses covering the Baton Rouge,
Houma, Hammond and Lafayette, Louisiana BTAs from Digital PCS, for $2.3 million
of our common and preferred stock and the assumption of $4.1 million of debt
owed to the U.S. government related to these licenses. The debt is shown on our
balance sheet net of a discount of $0.7 million reflecting the below market
interest rate on the debt. We also recently acquired a 20 MHz PCS license and
related assets covering the San Juan MTA from AT&T. On May 24, 1999, we sold to
AT&T $40.0 million of our preferred stock. On May 25, 1999, we purchased the
license and related assets from AT&T for $95.0 million in cash. In addition, we
reimbursed AT&T $3.2 million for microwave relocation and $1.5 million for other
expenses it incurred in connection with such acquisition. In addition, we
recently acquired 15 MHz C-Block PCS licenses covering the Alexandria, Lake
Charles and Monroe, Louisiana BTAs from Wireless 2000, for approximately $0.4
million of common and preferred stock, the assumption of $7.4 million of debt
owed to the U.S. government related to these licenses, $0.2 million in cash in
connection with microwave relocation and $0.4 million in reimbursement of
interest paid on government debt related to the license. The U.S. government
debt is shown net of a discount of $1.3 million reflecting the below market
interest rate on the debt.

  From time to time, we may enter into discussions regarding the acquisition of
other PCS licenses, including swapping our licenses for those of other PCS
license holders.

  We participated in the FCC's reauction of C-Block and other licenses for
additional spectrum through Viper Wireless. On April 20, 1999, the FCC announced
that the reauction ended, and Viper Wireless was the high bidder for additional
spectrum in New Orleans, Houma and Alexandria, Louisiana, San Juan, Puerto Rico,
Jackson, Tennessee and Beaumont, Texas. On June 3, 1999, a petition was filed by
certain secured creditors of DCR PCS and Pocket Communications against the
application of Viper Wireless for the Houma and New Orleans licenses. The
petition seeks deferral of the grant of these licenses to Viper Wireless until
an appeal by the secured creditors of DCR PCS and Pocket Communications has been
resolved or, in the alternative, a condition noting that a pre-existing claim to
the licenses may exist if the secured creditors of DCR PCS and Pocket
Communications are successful in that appeal. The appeal seeks review of the
bankruptcy court's ruling concerning DCR PCS and Pocket Communications
permitting DCR PCS to file its election notice, which ultimately resulted in the
return of these licenses to the FCC, over the objection of the secured creditors
of DCR PCS and Pocket Communications. Viper Wireless filed an opposition to the
petition on June 15, 1999. At present, TeleCorp Holding owns 85% of Viper
Wireless, and Mr. Vento and Mr. Sullivan together own the remaining 15%. Mr.
Vento and Mr. Sullivan together have voting control over Viper Wireless. AT&T
and certain of our cash equity investors have committed an aggregate of up to
$32.3 million in exchange for additional shares of our preferred and common
stock.

Revenue

  We derive our revenue from:

                                      -31-
<PAGE>

     .    Service. We sell wireless personal communications services. The
          various types of service revenue associated with wireless
          communications service for our subscribers include monthly recurring
          charges and monthly non-recurring airtime charges for local, long
          distance and roaming airtime used in excess of pre-subscribed usage.
          Our customers' roaming charges are rate plan dependent, based on the
          number of pooled minutes included in their plans. Service revenue also
          includes monthly non-recurring airtime usage associated with our
          prepaid subscribers and non-recurring activation and de-activation
          service charges.

     .    Equipment. We sell wireless personal communications handsets and
          accessories that are used by our customers in connection with our
          wireless services.

     .    Roaming. We charge monthly non-recurring outcollect fees for other
          wireless companies' customers using our network facilities to place
          and receive wireless services.

Cost of Revenue

  Equipment. We purchase personal communications handsets and accessories from
third party vendors to resell to our customers for use in connection with our
services. The cost of handsets is inherently higher than the resale price to the
customer. We record the excess cost as a sales and marketing operational
expense. We do not manufacture any of this equipment.

  Incollect Fees. We pay fees to other wireless communications companies based
on airtime usage of our customers on other communications networks.

  Clearinghouse Fees. We pay fees to a third party clearinghouse for processing
our call data records and performing monthly inter-carrier financial settlements
for all roaming incollect and outcollect charges.

  Variable Interconnect. We pay monthly non-recurring charges associated with
interconnection with other carriers' networks. These fees are based on minutes
of use by our customers.

  Variable Long Distance. We pay monthly non-recurring usage charges to other
communications companies for long distance service provided to our customers.
These variable charges are based on our subscribers' usage, applied at pre-
negotiated rates with the other carriers.

Operating Expense

  Operations and development. Our operations and development expense includes
all employee-based charges, including engineering operations and support, field
technicians, network implementation support, product development, and
engineering management. This expense also includes monthly recurring charges
directly associated with the maintenance of network facilities and equipment.

  Selling and marketing. Our selling and marketing expense includes all employee
based charges, including brand management, external communications, retail
distribution, sales training, direct, indirect, third party and telemarketing
support. In addition to employee based charges, we also record the excess cost
of handsets over the resale price as a cost of selling and marketing. We
distribute our products and services through direct and indirect sales efforts,
agents and telemarketing. Our direct sales and marketing efforts focus on
attracting and retaining small, medium and large business customers in our
target markets. We sell through company owned retail stores, indirect sales
partners, third party agents and resellers in an effort to efficiently increase
our consumer based subscribers.

  General and administrative. Our general and administrative expense includes
all employee based charges, including customer support, billing, information
technology, finance, accounting and legal services. Certain functions, such as
customer support, billing, finance, accounting and legal services are likely to
remain centralized in order to achieve economies of scale.

  Depreciation and amortization. Depreciation of property and equipment is
computed using the straight-line method, generally over three to ten years,
based upon estimated useful lives. Leasehold improvements are amortized over the
lesser of the useful lives of the assets or the term of the lease. Network
development costs incurred to ready our network for use are capitalized.
Amortization of network development costs begins when the network equipment is
ready for its intended use and will be amortized over its estimated useful life
ranging from five to ten years.

  Capital expenditures. Our principal capital requirements for deployment of our
wireless network include installation of digital equipment and, to a lesser
extent, site development work.

                                      -32-
<PAGE>

  Interest Income (Expense). Interest income is earned primarily on our cash and
cash equivalents. Interest expense through March 31, 1999 consists of interest
due on our senior credit facilities, vendor financing, and debt owed to the U.S.
government related to our licenses.

Results of Operations

Three Months ended March 31, 1999 Compared to Three Months ended March 31, 1998

  For the three months ended March 31, 1999, service revenue was approximately
$0.5 million, equipment revenue totaled approximately $1.8 million and roaming
revenue exceeded $1.9 million. We began offering wireless services in each of
our major domestic markets in the first quarter of 1999 and a large portion of
our revenue resulted from servicing AT&T's roaming customers in these markets.
We generated no revenue for the three months ended March 31, 1998.

  Cost of revenue, consisting mainly of cost of equipment and incollect expense,
for the three months ended March 31, 1999 was approximately $2.8 million. We did
not generate any such cost for the three months ended March 31, 1998.

  Operations and development expense for the three months ended March 31, 1999
was approximately $7.4 million. This expense was primarily related to the
engineering and operating staff required to implement and operate our network.
There was no operations and development expense for the three months ended March
31, 1998.

  Selling and marketing expense for the three months ended March 31, 1999 was
approximately $8.0 million, as compared to approximately $0.4 million for the
three months ended March 31, 1998. This increase was due to salary and benefits
for sales and marketing staff, as well as market research. The increase in sales
and marketing expense is mainly due to commencing services in our domestic
markets during the three months ended March 31, 1999.

  General and administrative expense for the three months ended March 31, 1999
was approximately $10.3 million, as compared to approximately $2.2 million for
the three months ended March 31, 1998. The increase was due to the development
and growth of infrastructure and staffing related to information technology,
customer care and other administrative functions incurred in conjunction with
the commercial launch of our markets during the three months ended March 31,
1999.

  Depreciation and amortization expense for the three months ended March 31,
1999 was approximately $3.1 million, as compared to approximately $39,000 for
the three months ended March 31, 1998. This expense was related to depreciation
of our fixed assets, as well as the initiation of amortization on PCS licenses
and AT&T agreements upon the commercial launch of our domestic markets.

  Interest expense, net of interest income, for the three months ended March 31,
1999 was approximately $3.0 million, as compared to approximately $90,000 for
the quarter ended March 31, 1998. This increase in interest expenses was related
to borrowings under our senior credit facilities of $225.0 million and the
issuance of $60.0 million aggregate principal amount of notes under the vendor
financing provided by Lucent.

Year ended December 31, 1998 Compared to Year ended December 31, 1997

  Revenue for the year ended December 31, 1998 was $29,231. This revenue
resulted from servicing AT&T's roaming customers in certain of our Louisiana
markets. We began offering wireless services in each of our major domestic
markets in the first quarter of 1999. We generated no revenue for the year ended
1997.

  Operations and development expense for the year ended December 31, 1998 was
approximately $9.8 million. This expense was primarily related to an increase in
engineering and operating staff devoted to the implementation of future
operations of our network. There was no operations and development expense for
the year ended December 31, 1997.

  Selling and marketing expenses for the year ended December 31, 1998 was
approximately $6.3 million, as compared to approximately $0.3 million for the
year ended December 31, 1997.  This increase was due to salary and benefits for
sales and marketing staff as well as market research. The year-over-year
increase was due to the increase in corporate and regional sales and marketing
staff in order to prepare for domestic market launches in the first quarter of
1999.

  General and administrative expense for the year ended December 31, 1998 was
approximately $26.2 million, as compared to approximately $2.6 million for the
year ended December 31, 1997. The year-over-year increase was due to the
development and growth of infrastructure and staffing related to information
technology, customer care and other administrative functions incurred in the
preparation for commercial launch of our markets in the first quarter of 1999.

                                      -33-
<PAGE>

  Depreciation and amortization expense for the year ended December 31, 1998 was
approximately $1.6 million, as compared to approximately $11,000 for the year
ended December 31, 1997.  This expense was related to depreciation of furniture,
fixtures and office equipment, as well as the initiation of amortization on
certain AT&T agreements.

  Interest expense, net of interest income, for the year ended December 31, 1998
was approximately $7.2 million, as compared to approximately $0.4 million for
the year ended December 31, 1997.  This interest expense was related to certain
notes payable to shareholders and affiliates.  This increase in interest expense
was related to borrowings under the senior credit facilities of $225.0 million
and the issuance of $10.0 million aggregate principal amount of notes under the
vendor financing provided by Lucent.

From July 29, 1996 (inception) to December 31, 1996

  Selling and marketing expense and general and administrative expense for the
period from July 29, 1996 (inception) to December 31, 1996 was approximately
$0.5 million, which were associated with salary, benefits and expenses of
administrative personnel, as well as legal and other costs associated with the
formation of TeleCorp.

Liquidity and Capital Resources

  Since inception, our activities have consisted principally of hiring a
management team, raising capital, negotiating strategic business relationships,
planning and participating in the PCS auction, initiating research and
development, conducting market research and developing our wireless services
offering and network. We have been relying on the proceeds from borrowings and
issuances of capital stock, rather than revenues, for our primary sources of
cash flow. We began commercial operations in December 1998 and began earning
recurring revenues by the end of the first quarter of 1999.

  Cash and cash equivalents totaled $11.2 million at March 31, 1999, as compared
to $111.7 million at December 31, 1998. This decrease was the result of incoming
cash provided by financing activities of $53.5 million, offset by $21.5 million
of cash used in operating activities and $132.5 million of cash used in network
development and investing activities.

  During the three months ended March 31,1999, we increased long-term debt by
$50.0 million and received $3.5 million of preferred stock subscriptions.
Capital expenditures required to develop and construct our network totaled
$114.7 million and we were required to deposit $17.8 million with the FCC for
PCS licenses during the three months ended March 31, 1999. Cash used in
operating activities of $21.5 million for the three months ended March 31, 1999
resulted from a net loss of $30.3 million that was partially offset by non-cash
charges of $3.9 million and changes in assets and liabilities of $4.9 million.

  From inception through June 1998, our primary source of financing was certain
notes issued to our stockholders. In July 1996, we issued $0.5 million of
subordinated promissory notes to our stockholders. We converted these notes into
50 shares of our Series A Preferred Stock in April 1997. In December 1997, we
issued various promissory notes to our stockholders. We converted these notes
into mandatorily redeemable preferred stock. From January 1 to June 30, 1998, we
borrowed approximately $22.5 million in the form of promissory notes to existing
and prospective stockholders to satisfy working capital needs. We converted
these notes into equity of TeleCorp in July 1998 in connection with the
consummation of the venture with AT&T.

  In connection with consummation of the venture with AT&T, we received
unconditional and irrevocable equity commitments from our stockholders in the
aggregate amount of $128.0 million in return for the issuance of preferred and
common stock. As of March 31, 1999, approximately $55.5 million of such equity
commitments had been funded. The remaining equity commitments will be funded in
an installment of $36.3 million in July 2000 and $36.2 million in July 2001. We
received additional irrevocable equity commitments from our stockholders in the
aggregate amount of $5.0 million in return for the issuance of preferred and
common stock in connection with the Digital PCS acquisition. Our stockholders
funded $2.2 million of these equity commitments on April 30, 1999, and will fund
$1.4 million in each of July 2000 and July 2001. We have received additional
irrevocable equity commitments from our stockholders in the aggregate amount of
approximately $40.0 million in return for the issuance of preferred and common
stock in connection with the Puerto Rico acquisition. We received $12.0 million
of these commitments on May 24, 1999, and $6.0 million will be funded in
December 1999 and $11.0 million will be funded on each of May 24, 2000 and May
24, 2001. We also received irrevocable equity commitments from our stockholders
in the amount of approximately $32.3 million in connection with Viper Wireless'
participation in the FCC's reauction of C-Block licenses. We received
approximately $6.5 million of these equity commitments on May 14, 1999, and the
remaining approximately $25.8 million will be available when we make payments to
the FCC with respect to these licenses or if the FCC does not refund amounts we
paid to them as deposits in connection with the reauction within 180 days of the
date of the deposit. In aggregate we have obtained $205.3 million of equity
commitments.

                                      -34-
<PAGE>

  In July 1998, we entered into senior credit facilities with a group of lenders
for an aggregate amount of $525.0 million. Our senior credit facilities provide
for (1) a $150.0 million senior secured term loan that matures in January 2007,
(2) a $225.0 million senior secured term loan that matures in January 2008, (3)
a $150.0 million senior secured revolving credit facility that matures in
January 2007, and (4) an uncommitted $75.0 million senior secured term loan in
the form of an expansion facility. We must repay the term loans in quarterly
installments, beginning in September 2002, and the commitments to make loans
under the revolving credit facility are automatically and permanently reduced
beginning in April 2005. As of March 31, 1999, $225.0 million had been drawn
under the senior credit facilities. See "Certain Indebtedness--Senior Credit
Facilities."

  In May 1998, we entered into a vendor procurement contract with Lucent, under
which we agreed to purchase radio, switching and related equipment and services
for the development of our network. Lucent agreed to provide us with $80.0
million of junior subordinated vendor financing. This $80.0 million consisted of
$40.0 million aggregate principal amount of Increasing Rate Series A notes due
2012 (the "Series A Notes") and $40.0 million aggregate principal amount of
Increasing Rate Series B notes due 2012 (the "Series B Notes").

  As of March 31, 1999, we had outstanding approximately $40.5 million of the
Series A Notes, including $0.5 million of Series A Notes issued as payment in
kind, plus $0.3 million of additional accrued interest. The $40.5 million
principal amount of Series A Notes is subject to mandatory prepayment on a
dollar for dollar basis out of the proceeds of future equity offerings in excess
of $130.0 million.

  Lucent has agreed to make available up to an additional $80.0 million of
junior subordinated vendor financing in amounts of up to 30% of the value of
equipment, software and services provided by Lucent in connection with any
additional markets we acquire. Any notes purchased under this facility would be
divided equally between Series A and Series B Notes. As a result of the markets
acquired in connection with the Puerto Rico acquisition, we have $15.0 million
of availability under this facility, consisting of $7.5 million of Series A
Notes and $7.5 million of Series B Notes. The terms of these Series A and Series
B Notes are identical to the terms of the original Series A and Series B Notes,
with the exception of their maturities. These notes will mature 6 months after
the maturity of the Notes. In the event we acquire any new markets, we would
have up to an additional $65.0 million available to us under this facility. See
"Certain Indebtedness--Vendor Financing."

  Pro forma for the Transactions as of March 31, 1999, we would have had
approximately $20.7 million of debt owed to the U.S. government related to our
C-Block and F-Block licenses. This debt is shown on our balance sheet net of
discounts of $3.2 million reflecting the below market interest rates on the
debt. We assumed $4.1 million of debt to the U.S. government in connection with
the Digital PCS acquisition. The debt is shown on our balance sheet net of a
discount of $0.7 million reflecting the below market interest rate on the debt.
In addition, we assumed $7.4 million of debt to the U.S. government in
connection with the Wireless 2000 acquisition. This debt is shown on our balance
sheet net of a discount of $1.3 million reflecting the below market interest
rate on the debt.

  Total capital expenditures were approximately $194.7 million for 1998. The
continued construction of our network and the marketing and distribution of
wireless communications products and services will require substantial
additional capital. We will incur significant amounts of debt to implement our
business plan and will therefore be highly leveraged. We estimate that our total
capital requirements from our inception until December 31, 2002 will be
approximately $1.2 billion. These requirements include license acquisition
costs, capital expenditures for network construction, operating cash flow losses
and other working capital costs, debt service and closing fees and expenses.
Capital expenditures from inception to March 31, 1999 were approximately $265.5
million. We estimate that capital expenditures will total approximately $159.4
million for the year ended December 31, 1999.

  We believe that the capital raised to date, which includes proceeds from the
offering of the Old Notes and the funding of the irrevocable equity commitments
from our stockholders will be sufficient to meet our projected capital
requirements through December 31, 2002. Our ability to meet our capital
requirements is subject to our ability to construct our network and obtain
customers in accordance with our plans and assumptions and a number of other
risks and uncertainties including those discussed under the heading "Risk
Factors." There can be no assurance that the build out of our network will be
completed as projected or that we will be able to generate positive cash flow.
If any of our projections are incorrect, we may not be able to meet our
projected capital requirements.

Quantitative and Qualitative Disclosure About Market Risk

  We are not exposed to fluctuations in currency exchange rates since all of our
services are invoiced in U.S. dollars. We are exposed to the impact of interest
rate changes on our short-term cash investments, consisting of U.S. Treasury
obligations and certain other investments in respect of institutions with the
highest credit ratings, all of which have maturities of three months or less.
These short term investments carry a degree of interest rate risk. We believe
that the impact of a 10% increase or decline in interest rates would not be
material to our investment income.

                                      -35-
<PAGE>

  We use interest rate swaps to hedge the effects of fluctuations in interest
rates on our senior credit facilities. These transactions meet the requirements
for hedge accounting, including designation and correlation. These interest rate
swaps are managed in accordance with our policies and procedures. We do not
enter into these transactions for trading purposes. The resulting gains or
losses, measured by quoted market prices, are accounted for as part of the
transactions being hedged, except that losses not expected to be recovered upon
the completion of hedged transactions are expensed. Gains or losses associated
with interest rate swaps are computed as the difference between the interest
expense per the amount hedged using the fixed rate compared to a floating rate
over the term of the swap agreement. As of March 31, 1999, we have entered into
six interest rate swap agreements with various counterparties totaling a
notional amount of $225.0 million to convert our variable rate debt to fixed
rate debt. The interest rate swaps had no material impact on our consolidated
financial statements as of and for the year ended December 31, 1998 or the three
month period ended March 31, 1999.

Year 2000

  The year-2000 issue is the result of computer programs being written using two
digits, rather than four digits, to define the applicable year. Programs that
have time-sensitive software may recognize a date using "00" as the year 1900
rather than the year 2000. This could result in a major system failure or
miscalculations, including an inability to process transactions, send invoices
or engage in similar normal business activities. Due to our reliance on computer
hardware and software, telecommunications and related service industries are
highly susceptible to the year-2000 issue. Over the past two years, as we
purchased the various components that comprise our internal information
technology systems, we received representations from our vendors that such
components were year-2000 compliant. We have begun the process of evaluating our
information technology systems to verify the accuracy of the representations
made by our vendors. Our costs to date have been immaterial, and we anticipate
that our total costs in evaluating our information technology system will not
exceed $5.0 million, including costs to build the necessary redundancy into our
systems. We expect to complete such evaluation by the end of the third quarter
of 1999.

  Our non-information technology systems may also be susceptible to the year-
2000 issues. In particular, our network switches contain embedded components
that are date sensitive. We have received assurances from Lucent that all our
network hardware purchased from them is year-2000 compliant. The failure of our
network switches would have a material adverse effect on our business.

  We are also dependent upon the ability of AT&T, AT&T's roaming partners and
EDS to ensure that their software and equipment are year-2000 compliant. We rely
on AT&T to provide our customers with over-the-air activation and roaming. We
rely on EDS to provide clearinghouse services. There can be no guarantee that
their systems will be year-2000 compliant on a timely basis or that their
systems will be compatible with our systems. This could have a material adverse
effect on our business.

                                      -36-
<PAGE>

                                   BUSINESS

  We intend to become a leading provider of digital wireless communications
services in targeted markets in the south-central and northeast United States
and in Puerto Rico. We are the exclusive provider of facilities-based mobile
wireless communications services for AT&T in our markets. TeleCorp was founded
in 1996 by Gerald T. Vento, Thomas H. Sullivan and certain private equity
investors to acquire strategic PCS licenses. In 1998, we entered into a venture
with AT&T in which AT&T contributed certain PCS licenses to us in exchange for
an equity interest in our company. In addition, we have the right to use the
AT&T brand name and logo together with our own brand name and logo, giving equal
emphasis to each. We are AT&T's preferred roaming partner in our markets and
receive preferred long distance rates from AT&T.

  Our PCS licenses cover approximately 16.0 million Pops, including those in the
major population centers of New Orleans and Baton Rouge, Louisiana, Memphis,
Tennessee, Little Rock, Arkansas, Manchester, Concord and Nashua, New Hampshire,
Worcester, Massachusetts and San Juan, Puerto Rico, as well as vacation
destinations such as Puerto Rico, the U.S. Virgin Islands, Cape Cod and Martha's
Vineyard. Our markets have attractive economic and demographic characteristics
and are experiencing strong growth in use of wireless services. These markets,
which attract over 24 million visitors per year, are major roaming markets for
AT&T's customers.

  We have successfully launched our services in 14 markets, including all of our
major domestic markets. Our launched network covers approximately 40% of our
domestic licensed Pops, and by year-end 1999 we expect our network will cover
approximately 50% of our total licensed Pops. In December 1998, we began
servicing roaming customers in certain of our Louisiana markets and we carried
more than 4.2 million minutes in the first 60 days of operation in those
markets. We have a strong distribution presence in our launched markets with 22
company-owned stores and more than 140 retail outlets where customers can buy
our services. Additionally, we market our services through business-to-business
representatives, telemarketing and the Internet.

  Our goal is to provide our customers with simple, easy-to-use wireless
services with coverage across the nation, superior call quality, personalized
customer care and competitive pricing in the markets we serve. We believe that,
as an AT&T affiliate, we will attract customers through the national brand and
coast-to-coast roaming provided by AT&T and its roaming partners. We have also
entered into an agreement with Triton PCS and Tritel Communications, two other
companies similarly affiliated with AT&T, to adopt SunCom as a common regional
brand that is co-branded with AT&T, giving equal emphasis to each. We and the
other SunCom companies are establishing the SunCom brand as a basis for building
a strong regional presence with a service area covering approximately 43.0
million Pops.

                                      -37-
<PAGE>

Market Overview

  We hold or will acquire BTA licenses within the following eight MTAs:

<TABLE>
<CAPTION>
Markets                                                                                       1998 Pops     Spectrum
- -------                                                                                       ---------     --------
                                                                                            (in thousands)  (in MHz)
<S>                                                                                         <C>             <C>
New Orleans, Louisiana
 New Orleans..............................................................................          1,402         35
 Baton Rouge..............................................................................            676         20
 Lafayette................................................................................            531         20
 Lake Charles.............................................................................            279         15
 Houma....................................................................................            272         25
 Hammond..................................................................................            107         10
                                                                                                 --------
     Total................................................................................          3,267

Memphis, Tennessee
 Memphis..................................................................................          1,493         30
 Jackson..................................................................................            276         35
 Dyersburg................................................................................            116         20
 Blytheville, AR..........................................................................             70         20
                                                                                                 --------
     Total................................................................................          1,955

Little Rock, Arkansas
 Little Rock..............................................................................            926         30
 Fort Smith...............................................................................            312         20
 Fayetteville.............................................................................            291         20
 Jonesboro................................................................................            174         20
 Pine Bluff...............................................................................            148         20
 Hot Springs..............................................................................            133         20
 El Dorado................................................................................            103         20
 Russellville.............................................................................             95         20
 Harrison.................................................................................             88         20
                                                                                                 --------
     Total................................................................................          2,270

Boston, Massachusetts
 Worcester, MA............................................................................            727         20
 Manchester, NH...........................................................................            584         20
 Boston, MA (a)...........................................................................            383         20
 Hyannis, MA..............................................................................            231         20
                                                                                                 --------
     Total................................................................................          1,925

San Juan, Puerto Rico
 Puerto Rico/San Juan.....................................................................          2,719         35
 Mayaguez Aguadilla.......................................................................          1,089         20
 Virgin Islands...........................................................................            106         20
                                                                                                 --------
     Total................................................................................          3,914

St. Louis, Missouri
 Springfield (b)..........................................................................            283         20
 Carbondale, IL...........................................................................            216         20
 Columbia.................................................................................            209         20
 Cape Giradeau............................................................................            189         20
 Quincy...................................................................................            181         20
 Jefferson City...........................................................................            156         20
 Poplar Bluff.............................................................................            155         20
 Mt. Vernon, IL...........................................................................            121         20
 Rolla....................................................................................             98         20
 West Plains..............................................................................             76         20
 Kirksville...............................................................................             56         20
                                                                                                 --------
     Total................................................................................          1,740

Houston, Texas
 Beaumont.................................................................................            459         40
                                                                                                 --------
     Total................................................................................            459

Louisville, Kentucky
 Evansville, Indiana......................................................................            518         20
                                                                                                 --------
     Total................................................................................            518
                                                                                                 ========
     Total Pops...........................................................................         16,048
</TABLE>

_____________
Source: The 1998 PCS Atlas & Databook, Kagan, 1990 U.S. Census.
(a) Rockingham and Stafford counties only.
(b) Camden, Cedar, Dallas, Douglas, Hickory, Laclede, Polk, Stone, Taney, Texas,
    Webster and Wright counties only.

  In addition, we hold or will hold licenses for the following BTAs:
Alexandria, Louisiana (209,000 Pops), Monroe, Louisiana (335,000 Pops) and
Paducah, Kentucky (231,000 Pops).  We do not presently intend to develop markets
covered by these additional licenses.

                                      -38-
<PAGE>

  The average population density of our markets is approximately 38% greater
than the national average.

Services and Features

  We provide an array of wireless communications services and features through
our network.

  Wireless Mobility.   Our primary service is wireless mobility, featuring tri-
mode handsets, enhanced voice clarity, improved protection from eavesdropping
and a broad feature set. Our basic wireless service offering includes caller ID,
three-way conference calling, call waiting, voicemail, paging and short-
messaging.

  Feature-Rich Handsets.   As part of our basic service offering, we provide
easy-to-use, interactive menu-driven handsets that can be activated over the
air. These handsets primarily feature word prompts and easy-to-use menus rather
than numeric codes to operate handset functions. These handsets allow mobile
access to Internet services and will have the ability to interact with personal
computers.

  Advanced Tri-Mode Handsets.   Through the use of tri-mode handsets, which are
compatible with PCS, digital cellular and analog cellular frequencies and
service modes, we offer customers coast-to-coast roaming across a variety of
wireless networks. Tri-mode handsets incorporate a roaming database (which can
be updated over the air) that controls roaming preferences, typically completing
calls using the best available system (from both quality and cost perspectives).
We offer our customers use of technologically advanced Nokia and Ericsson
handsets.

  Extended Battery Life.   Tri-mode handsets offer significantly extended
battery life over earlier technologies, providing up to 14 days of stand-by
battery life. Handsets operating on a digital system are capable of "sleep-mode"
while turned on but not in use, thus improving efficiency and extending battery
life. We expect that this feature will increase usage, especially for incoming
calls, as users will be able to leave the phone on for significantly longer
periods. The use of tri-mode handsets further extends battery life by using a
digital system for roaming when in areas covered by digital systems.

  Improved Voice Quality.   We believe the version of TDMA we are using offers
significantly improved voice quality, more powerful error correction, less
susceptibility to call fading and enhanced interference rejection, which results
in fewer dropped calls, compared to earlier versions of TDMA.

  Voice Privacy and Call Security.   Digital technology is inherently more
secure than analog technologies. This security provides increased voice privacy
for our customer and enhanced fraud protection.

  Paging and Short-Messaging.   Our network has the capability to send and
receive pages and short text messages. These services allow customers to use
less expensive forms of wireless communications when conversation is not
necessary. We offer short-messaging as a bundled service on select packages and
as an extra feature available to all customers.

  Pre-Paid Services.   We offer our customers the option to subscribe for a pre-
paid service which enables them to better monitor and control their usage. Pre-
pay customers are able to use services within our licensed areas and to access
all of AT&T's wireless network as well as those of its participating roaming
partners who have compatible equipment. We provide an expansive feature set to
our pre-pay customers, including caller ID and call waiting, and we market the
pre-paid services to a broad segment of customers.

  Wireless In-Building Services.   As the use of wireless devices becomes more
widespread, consumers increasingly are demanding wireless services which extend
into office buildings, subways, airports, shopping centers and private homes. We
use "micro-cellular" technology to offer corporate users full in-building
coverage and four-digit wireless office dialing. In addition, we are working
with a number of hardware and software suppliers to develop next generation
full-scale wireless office services including wireless PBX and wireless local
area network services, which will enable users to use wireless handsets both
inside and outside of the office.

  Data and Internet Services.   Because of the quality of digital signal
transmission, wireless communications systems are suitable for the transmission
of wireless data services such as weather reports, sports summaries, fax
services, access to stock quote services, monitoring of alarm systems and remote
Internet access.

Marketing Strategy

  Our marketing strategy has been developed on the basis of extensive market
research in each of our markets. This research indicates that limited coverage
of existing wireless systems, relatively high cost, inconsistent performance and
overall confusion

                                      -39-
<PAGE>

about wireless services drive subscriber dissatisfaction and reduce the
attractiveness of wireless services for potential new subscribers. We believe
that our affiliation with the AT&T brand name and the distinctive advantages of
our TDMA network, combined with simplified, attractive pricing plans, will allow
us to capture significant market share from existing analog cellular providers
in our markets and to attract new wireless users. We are focusing our marketing
efforts on four primary market segments: corporate accounts, current cellular
users, individuals with the intent to purchase a wireless product within six
months and pre-paid subscribers. For each segment, we are creating a specific
marketing program including a service package, pricing plan and promotional
strategy. Management believes that targeted service offerings will increase
customer loyalty and satisfaction, thereby reducing customer turnover.

Brand

  We have formed Affiliate License Co. with Triton PCS and Tritel
Communications, other companies similarly affiliated with AT&T, to adopt a
common regional brand, SunCom.  Each of the SunCom companies owns one-third of
Affiliate License Co., which owns the SunCom name.  We and the other SunCom
companies license the SunCom name from Affiliate License Co.  We market our
wireless services as "SunCom, Member of the AT&T Wireless Network" and use the
globally recognized AT&T brand name and logo in equal size and prominence with
the SunCom brand name and logo. The use of the AT&T brand reinforces an
association with reliability and quality. We and the other SunCom companies are
establishing the SunCom brand as a strong local presence with a service area
covering approximately 43 million Pops. We enjoy preferred pricing on equipment,
handset packaging and distribution by virtue of our affiliation with AT&T and
the other SunCom companies. We hope to achieve additional production and
packaging economies of scale by working with the other SunCom companies. See
"Risk Factors--Our success depends upon our relationship with AT&T and its
success," "Certain Relationships and Related Transactions--AT&T Agreements" and
"--Other Related Party Transactions."

Pricing

  Our pricing plans are competitive and straightforward, offering large buckets
of minutes, large local calling areas and usage enhancing features. We offer
distinctive pricing plans tailored for each of our market segments. One way we
differentiate ourselves from existing wireless competitors is through our
pricing policies. We offer pricing plans designed to encourage customers to
enter into long term service contract plans. We also offer shared minute pools,
which are available for businesses and families who have multiple wireless users
who want to share the bucket of minutes.

  In May 1998, AT&T introduced "Digital One Rate," a suite of rate plans that
has caused a redefinition of the concept of local service area in the U.S.
wireless marketplace. These rate plans include large buckets of minutes which
can be used locally, or practically anywhere in the United States, on AT&T's
wireless network and through AT&T's extensive network of roaming agreements.
These plans also bundle long distance and roaming charges. Subscribers can make
calls to or from most locations in the United States and pay no additional
roaming fees or long distance charges. The Digital One Rate and other flat rate
plans are also causing a shift in calling patterns in the wireless industry.
Although these plans are too new to predict the long-range effect on consumer
behavior, it appears that usage, and in particular long distance usage, has
risen since the introduction of these plans.

  We offer our customers our national SunRate plans, which allow them to make
calls practically anywhere in the United States without paying additional
roaming or long distance charges. By contrast, competing flat rate plans
generally restrict flat rate usage to such competitors' owned networks. By
virtue of our roaming arrangements with AT&T and its roaming partners, we
believe we can offer a competitive national rate plan.

  We believe the pre-paid subscriber segment represents a large market
opportunity, and we offer pricing plans that will drive growth in this category.
Pre-pay plans provide an opportunity for individuals whose credit profiles would
not otherwise allow them access to wireless communications to take advantage of
our services. In addition, our pre-pay plans provide an attractive alternative
for families and business users to control the usage of family members or
employees. We offer our pre-paid subscribers the same digital services and
features available to other customer segments. Typical pre-pay plans of
competitors, by contrast, provide low quality handsets and limited services and
features.

Bundling and Affinity Marketing

  We may bundle our wireless communications services with other communications
services, including discounted long distance services, through strategic
alliances and resale agreements with AT&T and others. We also may offer service
options in partnership with local business and affinity marketing groups.
Examples of these arrangements include offering wireless services with utility
services, banking services, cable television, Internet access or alarm
monitoring services in conjunction with local information services. Such
offerings provide the customer access to information, such as account status,
weather and traffic reports, stock quotes, sports scores and text messages from
any location.

                                      -40-
<PAGE>

Customer Care

  We are committed to building strong customer relationships by providing
customers with service that exceeds expectations. We serve our customers from
our state-of-the-art facility in Memphis, Tennessee, which houses our customer
service, collections and anti-fraud personnel. Convergys provides backup call
center support and bilingual customer service from two facilities in Florida. We
have implemented a "one call resolution" approach to customer service through
the use of customer support tools, including access to online reference
information. In addition, we emphasize proactive and timely customer service,
including welcome packages and anniversary calls. We support our customer
service initiatives through employee compensation plans based on subscriber
quotas and retention. We use innovative service features to improve customer
satisfaction and reduce the cost of service delivery. For example, pre-paid
users hear a "whispered" announcement of time remaining in their account before
each call, which allows them to control usage and reduces balance inquiries to
customer service. We intend to expand our web-based services to include online
account specific information that allows customers to check billing, modify
service or otherwise manage their accounts.

  We are developing a state-of-the-art data warehouse to provide timely access
to critical business information that can be used to provide customers with
desired services, such as real-time billing and automated notification of
remaining account balances.  We also intend to use the data warehouse to cross-
link billing, marketing and customer care systems to collect customer profile
and usage information.  This information provides the tools necessary to
increase revenue by analyzing channel and product profitability and reduces
customer acquisition costs by more effectively implementing marketing
strategies.

Advertising

  We believe that the most successful marketing strategy is to establish a
strong local presence in each of our markets. We are directing our media and
promotional efforts at the community level with advertisements in local
publications and sponsorship of local and regional events. We combine our local
efforts with mass market strategies and tactics to build the SunCom and AT&T
brands locally. Our media efforts include television, radio, newspaper,
magazine, outdoor and Internet advertisements to promote our brand. In addition,
we use newspaper and radio advertising and our web page to promote specific
product offerings and direct marketing programs for targeted audiences.

Sales and Distribution

  We use a mix of sales and distribution channels, including a network of
company stores, nationally recognized retailers, a direct sales force for
corporate accounts and direct marketing channels such as telesales, neighborhood
sales and online sales. We work with AT&T's sales channels to cooperatively
exchange leads and develop new business.

  We are taking advantage of over-the-air activation features intrinsic to
digital technology to separate activation of service from the sale of the phone.
By separating activation and sale, we are able to ensure that knowledgeable
staff is communicating with customers. This allows for better informed customers
at the point of activation, with basic training in the use of their handsets and
appropriate expectations for their wireless service provider. We believe that
having better informed customers will lead to reduced customer turnover. In
addition, the separation of activation and sale of handsets reduces the overall
cost of the retail sales channel, because retailers have less involvement and
therefore lower sales commissions.

Company Stores

  We make extensive use of company stores for the distribution and sale of our
handsets and services. Management believes that company stores offer a
considerable competitive advantage by providing a strong local presence, which
is required to achieve high penetration in suburban and rural areas. We also
believe that company stores offer one of the lowest customer acquisition costs
among our different distribution channels. Sales representatives in company
stores receive in-depth training to allow them to explain wireless
communications services simply and clearly. Company stores have three different
formats: flagship stores, express stores and kiosks. Our flagship stores are
located in the principal retail district in each market. Express stores are a
smaller retail format located in secondary markets. Kiosks are being deployed to
maximize our retail presence in each market and to take advantage of high
traffic areas, such as shopping malls and airports. We have opened 22 company-
owned stores.

Retail Outlets

  We have negotiated distribution agreements with national and regional mass
merchandisers and consumer electronics retailers, including Office Depot,
Staples, Best Buy and Office Max.  We currently have over 140 retail outlet
locations where customers can purchase our services. These distributors are
chosen based upon their ability to reach our target customers in our service
area. Our separation of activation and sale of handsets reduces retailer
involvement, which, in conjunction with the

                                      -41-
<PAGE>

desirability of the AT&T name, we believe, attracts retailers to our handsets.
In some of these retail store locations, we are implementing a store-within-a-
store concept, which uses visual merchandising to leverage the brand awareness
created by both SunCom and AT&T advertising. The ease of distribution of shrink-
wrapped handsets appeals to mass merchandisers who have altered their in-store
merchandising to reflect the changing wireless marketplace. We support their
dedication of valuable floor space to wireless communications products through a
local team of retail merchandisers, attention-grabbing point of sale materials
and consumer appeal.

Direct Sales

  We focus our direct sales distribution channel on high-revenue, high-
profitability corporate users. Our direct corporate sales force consists of
dedicated professionals targeting the wireless decision maker within large
corporations. We also benefit from AT&T's national corporate accounts sales
force. AT&T, in conjunction with us, supports marketing of our services to
AT&T's large national accounts located in certain of our service areas. We have
formed regional advisory groups as an additional way to interface with corporate
customers in our markets. These advisory groups are comprised of local business
leaders, who are also wireless users or prospective users, and are designed to
provide timely feedback regarding our proposed wireless offerings and establish
a customer base prior to launch. See "--Marketing Strategy."

Direct Marketing

  We use direct marketing efforts such as direct mail and telemarketing. These
efforts are used to generate leads and stimulate prospects for our telemarketing
department. Telesales allow us to maintain low selling costs and to "up sell"
additional features or customized services.

Website

  Our web page provides current information about us, our markets and our
product offerings. We are also establishing an online store on our website. The
web page conveys our marketing message and we expect it will generate customers
through online purchasing. We deliver all information that is required to make a
purchasing decision at our website. Customers are able to choose rate plans,
features, handsets and accessories. The online store will provide a secure
environment for transactions, and customers purchasing through the online store
will experience a similar business process to that of customers purchasing
service through other channels.

Network Development

  We began commercial operations in December 1998 and have launched our services
in each of our major domestic markets. Our network now covers approximately 40%
of our domestic licensed Pops. We expect to launch our Puerto Rico market during
the third quarter of 1999.

  Consistent with our strategy, we launched our services in each of our major
domestic markets, which have attractive characteristics for a high volume of
wireless communications usage, including metropolitan "downtown" areas, the
surrounding suburbs, well-utilized commuting and travel corridors, and popular
leisure and vacation destinations. Immediately upon launch, subscribers had
access to coast-to-coast coverage through roaming arrangements with AT&T and its
roaming partners (both within and outside our licensed areas). Within each
market, geographic coverage will be based upon changes in wireless
communications usage patterns, demographic changes within our licensed areas and
our experiences in those markets.

  We intend to continue to meet our network development plan by using the
expertise of vendors recognized in the industry for providing high quality
services. Lucent is providing the necessary radio, switching and related
equipment for construction of our network. In addition, a number of other
experienced wireless vendors are assisting us in deploying our network.

Handsets

  We purchase our handsets from Nokia and Ericsson at preferred prices through
our affiliation with AT&T and the other SunCom companies. We also have entered
into an arrangement with Brightpoint, a leading distributor for the wireless
industry, for the packaging and distribution of our handsets.

Network Construction

  We have leased over 640 cell sites, including 149 that will be developed in
later phases of construction of our network, and we operate five mobile switches
and four switching centers. We designed our network architecture to optimize the
use of co-

                                      -42-
<PAGE>

location on existing sites which minimizes the construction of new towers and
significantly reduces our need to obtain zoning approvals.

Network Operations

  The effective operation of our network requires public switched
interconnection and backhaul agreements with other communications providers,
long distance interconnection, the implementation of roaming arrangements, the
development of network monitoring systems and the implementation of information
technology systems.

Switched Interconnection/Backhaul

  Our network is connected to the public switched telephone network to
facilitate the origination and termination of traffic between our network and
both the local exchange and long distance carriers. We have signed agreements
with numerous carriers, including, among others, BellSouth in New Orleans, Time
Warner Telecom in Memphis, SBC Communications in Little Rock, Bell Atlantic in
New England and Puerto Rico Telephone in Puerto Rico.

Long Distance

  We have executed a wholesale long distance agreement with AT&T providing for
preferred rates for long distance services.

Roaming

  Through our arrangements with AT&T and via the use of tri-mode handsets, our
customers have roaming capabilities on AT&T's wireless network. Further, we have
the benefit of AT&T's roaming agreements with third party carriers at AT&T's
preferred pricing, including in-region roaming agreements covering all of our
launched service areas.

Network Monitoring Systems

  Our network operations center provides around-the-clock monitoring and
maintenance of our entire network. The network operations center is equipped
with sophisticated electronics that constantly monitor the status of all base
stations and switches and record network traffic.  The network operations center
provides continuous monitoring of system quality for blocked or dropped calls,
call clarity and evidence of tampering, cloning or fraud.  We designed our
network operations center to oversee the interface between customer usage, data
collected at switch facilities and our billing systems.  Usage reports, feature
activation and related billing items are managed on a timely and accurate basis.
Our network operations center is located in the Memphis switch center, and we
also have back-up network operations center capabilities in our Arlington,
Virginia data center.

Information Technology

  We operate management information systems to handle customer care, billing,
network management and financial and administrative services. The systems focus
on three primary areas: (1) network management, including service activation,
pre-pay systems, traffic and usage monitoring, trouble management and
operational support systems; (2) customer care, including billing systems and
customer service and support systems; and (3) business systems, including
financial, purchasing, human resources and other administrative systems.

  We have incorporated sophisticated network management and operations support
systems to facilitate network fault detection, correction and management,
performance and usage monitoring and security. System capabilities have been
developed to allow over-the-air activation of handsets and implement fraud
protection measures. We maintain stringent controls for both voluntary and
involuntary deactivations. Subscriber disconnections initiated by us are
minimized by (1) preactivation screening to identify any prior fraudulent or bad
debt activity, (2) credit review and (3) call pattern profiling to identify
where activation and termination policy adjustments are needed. We entered into
a long-term software license, development and implementation agreement with LHS
Communications Systems and CAP Gemini America to provide our billing system, and
we have engaged a variety of industry leaders such as Lucent and Lightbridge to
provide activation, fraud management and support systems.

TDMA Digital Technology

  We have chosen digital TDMA technology for our network. TDMA allows for the
use of advanced tri-mode handsets which allow for roaming across PCS and
cellular frequencies, including both analog cellular and digital cellular. TDMA
technology allows for enhanced services and features, such as short-messaging,
extended battery life, added call security and improved voice quality. TDMA's
hierarchical cell structure will enable us to enhance network coverage with
lower incremental investment

                                      -43-
<PAGE>

(through the deployment of micro, as opposed to full-size, cell sites). This
will enable us to offer customized billing options and to track billing
information per individual cell site, which is practical for advanced wireless
applications, such as wireless local loop and wireless office applications. In
addition, TDMA technology allows for three times the capacity of analog systems.

  TDMA is the digital technology choice for two of the three largest wireless
communications companies in the United States, AT&T and SBC Communications. TDMA
served an estimated 19 million subscribers worldwide and 9 million subscribers
in North America as of December 31, 1999, according to the Universal Wireless
Communications Consortium ("UWCC"), an association of TDMA service providers and
manufacturers. The increased volume of TDMA users has increased the probability
of TDMA technology remaining an industry standard. TDMA equipment is available
from leading telecommunications vendors, such as Lucent, Ericsson and Northern
Telecom. See "Risk Factors--Changes in technology and customer demands could
adversely affect us."

Competition

  We believe subscribers choose a wireless communications service provider
principally based upon network coverage, pricing, quality of service and
customer care.  We believe that we enjoy certain advantages over our
competitors. We offer our customers coverage where they live, work and play and
coast-to-coast coverage immediately upon launch through our relationship with
AT&T and its roaming partners.  Our pricing plans are competitive and
straightforward, offering large buckets of minutes, large local calling areas
with in-region roaming capabilities to supplement our network and usage-
enhancing features. We believe that our TDMA digital technology provides better
quality services and more enhanced features than analog cellular technology.
Our digital network provides users with improved sound quality, enhanced
security, prolonged battery life and increased data transfer capability over
analog networks, and we believe that customers increasingly will choose digital
service over analog service.  We operate a state-of-the-art customer care
facility designed to provide proactive customer service.  Our marketing plan
includes at least four customer contacts annually, including welcome calls,
first bill calls and anniversary calls, and we follow a "one call resolution
approach" to customer concerns.  We market our wireless services to our
customers giving equal emphasis to the SunCom and AT&T brand names and logos.
Our market research indicates that association with the AT&T brand name
reinforces reliability and quality and significantly increases the likelihood
that potential customers will purchase our wireless communications services.

  We compete directly with at least two cellular providers and other PCS
providers in each of our markets and against ESMR operations in certain of our
markets. Most of these existing cellular providers have an infrastructure in
place and have been operational for a number of years, with certain of these
competitors having greater financial and technical resources than we do. Certain
of these cellular operators may upgrade their networks to provide services
comparable to those offered by us. We also compete with other PCS license
holders in each of our markets. In New Orleans, we compete primarily against
Radiofone and BellSouth for cellular services, Sprint PCS and PrimeCo Personal
Communications for PCS services, and Nextel for ESMR. In Memphis, we compete
with GTE, SBC Communications and BellSouth for cellular services, Powertel and
Sprint PCS for PCS services and Nextel for ESMR. In Little Rock, we compete
against ALLTEL and SBC Communications for cellular services and Sprint PCS for
PCS services. In New England, we compete against SBC Communications, Bell
Atlantic and U.S. Cellular for cellular services and Sprint PCS and Omnipoint
Technologies for PCS services. In Puerto Rico, we compete principally against
Puerto Rico Telephone Company and Cellular One for cellular services and
Centennial Cellular for PCS services.

  Our ability to compete successfully will depend, in part, upon our ability to
anticipate and respond to various competitive factors affecting the industry,
including the introduction of new services, changes in consumer preferences,
demographic trends, economic conditions and competitors' discount pricing
strategies, all of which could adversely affect our operating margins. See "Risk
Factors--Changes in technology and customer demands could adversely affect us."

The Wireless Communications Industry

  Wireless communications systems use a variety of radio frequencies to transmit
voice and data. The wireless communications industry includes one-way radio
applications, such as paging or beeper services, and two-way radio applications,
such as PCS, cellular telephone and ESMR. Each application is licensed and
operates in a distinct radio frequency block.

  Since the introduction of commercial cellular in 1983, the wireless
communications industry has experienced dramatic growth. The number of wireless
subscribers has increased from an estimated 340,213 at the end of 1985 to over
69 million as of December 31, 1998, according to the Cellular Telecommunications
Industry Association, an international association for the wireless industry.
Kagan, an independent media and telecommunications association, estimates that
the number of wireless users will increase to 142 million by 2003, with PCS
users representing nearly 34% of total users, a significant increase over the
approximately 11% of total users represented by PCS today. The following chart
illustrates the annual growth in U.S. wireless communications customers
(cellular, ESMR and PCS) through December 31, 1998:

                                      -44-
<PAGE>

<TABLE>
<CAPTION>
                                                                                          Year Ended December 31,
                                                                     --------------------------------------------------------------
                                                                        1992     1993     1994     1995     1996     1997     1998
                                                                       -------  -------  -------  -------  -------  -------  -------
<S>                                                                    <C>      <C>      <C>      <C>      <C>      <C>      <C>
Wireless Industry Statistics/1/......................................
Total service revenues (in billions).................................  $  7.8   $ 10.9   $ 14.2   $ 19.0   $ 23.6   $ 27.5   $ 33.1
Wireless subscribers at end of period (in millions)..................    11.0     16.0     24.1     33.8     44.0     55.3     69.2
Subscriber growth....................................................    46.0%    45.1%    50.8%    40.0%    30.4%    25.6%    25.1%
Average monthly wireless bill........................................  $68.68   $61.48   $56.21   $51.00   $47.70   $42.78   $39.43
Ending penetration...................................................     4.4%     6.2%     9.4     13.0%    16.3%    20.2%    25.0%
Digital subscribers (in millions)....................................      --       --       --       --       --       --     18.3
</TABLE>


Sources: Cellular Telecommunications Industry Association and Kagan.
(1) Reflects domestic commercially operational cellular, ESMR and PCS providers.

  In the wireless communications industry, there are two principal services
licensed by the FCC for transmitting voice and data signals: PCS and cellular.
PCS is a term commonly used in the United States to refer to service carried
over the 1850 MHz to 1990 MHz portion of the radio spectrum. Cellular is a term
commonly used in the United States to refer to service carried over the 824 MHz
to 893 MHz portion of the radio spectrum. Cellular service is the predominant
form of wireless voice communications service available. Cellular systems were
originally analog-based systems, although digital technology has been introduced
in certain markets. PCS systems use digital technology. Analog technology
currently has several limitations, including lack of privacy and limited
capacity. Digital systems convert voice or data signals into a stream of digits
that is compressed before transmission, enabling a single radio channel to carry
multiple simultaneous signal transmissions. This enhanced capacity, along with
improvements in digital signaling, allows digital-based wireless technologies to
offer new and enhanced services, such as greater call privacy and robust data
transmission features, including "mobile office" applications (facsimile, e-mail
and wireless connections to computer/data networks, including the Internet). See
"--Government Regulation" for a discussion of the FCC auction process and
allocation of wireless licenses.

Operation of Wireless Communications Systems

  Wireless communications system service areas, whether PCS or cellular, are
divided into multiple cells. In both PCS and cellular systems, each cell
contains a transmitter, a receiver and signaling equipment, which is known as a
"cell site." The cell site is connected by microwave or landline telephone lines
to a switch that uses computers to control the operation of the cellular
communications system for the entire service area. The system controls the
transfer of calls from cell site to cell site as a subscriber's handset travels,
coordinates calls to and from handsets, allocates calls among the cell sites
within the system and connects calls to the local landline telephone system or
to a long distance telephone carrier. Wireless communications providers must
establish interconnection agreements with local exchange carriers and inter-
exchange carriers, thereby integrating their system with the existing landline
communications system.

  Because the signal strength of a transmission between a handset and a cell
site declines as the handset moves away from the cell site, the switching office
and the cell site monitor the signal strength of calls in progress. When the
signal strength of a call declines to a predetermined level, the switching
office may hand-off the call to another cell site where the signal strength is
stronger. If a handset leaves the service area of a PCS or cellular system, the
call is disconnected unless there is a technical connection with the adjacent
system.  If there is a technical connection with the adjacent system, the
customer may roam onto the adjacent system.

  Analog cellular handsets are functionally compatible with cellular systems in
all markets in the United States. As a result, analog cellular handsets may be
used wherever a subscriber is located, as long as a cellular system is
operational in the area and either the service provider's system covers such
area or a roaming arrangement exists with a provider covering such area.

  Although PCS and cellular systems utilize similar technologies and hardware,
they operate on different frequencies and use different technical and network
standards. With the introduction of tri-mode phones, it is now possible for
users of one type of system to roam on a different type of system outside of
their service area, and to hand-off calls from one type of system to another if
the appropriate agreements are in place.

  Currently, PCS systems operate under one of three principal digital signal
transmission technological standards that have been proposed by various
operators and vendors for use in PCS systems: TDMA, CDMA or GSM. TDMA and GSM
are both "time division-based" standards but are incompatible with each other
and with CDMA. Accordingly, a subscriber of a system that utilizes TDMA
technology is unable to use a TDMA handset when travelling in an area not served
by TDMA-based PCS operators, unless the subscriber carries a dual-mode handset
that permits the subscriber to use the analog or digital cellular system in that
area and the appropriate agreements are in place.

                                      -45-
<PAGE>

  With a tri-mode handset, a user can place or receive calls using (1) a PCS
system using the technological standard with which such handset is compatible,
(2) a digital cellular system using the corresponding technological standard or
(3) an analog cellular system. If a PCS system operated by the service provider
or covered by a roaming agreement is operating in the area, the call will be
placed via such system. If there is no PCS system providing coverage, the call
will be placed through a digital cellular system operating in the area and
providing coverage to the user, and if no digital cellular system is providing
coverage, the call will be connected over an analog cellular system providing
coverage. Tri-mode handsets allow for a call in progress to be handed off to an
adjacent system, whether the same mode or band or otherwise, without
interruption if the appropriate agreements are in place. Prior generations of
handsets would cut off the call when the handset left the coverage of one system
and would require the customer to place the call again using the adjacent
system.

Government Regulation

  We are subject to substantial regulation by the FCC, state public utility
commissions and, in some cases, local authorities. Our principal operations are
classified as CMRS by the FCC, subject to regulation under Title II of the
Communications Act of 1934 (the "Act") as a common carrier and subject to
regulation under Title III of the Act as a radio licensee. The states are
preempted from regulating our entry into and rates for CMRS offerings, but
remain free to regulate other terms and conditions of our CMRS services and to
regulate other intrastate offerings by us. Congress and the states regularly
enact legislation, and the FCC, state commissions and local authorities
regularly conduct rulemaking and adjudicatory proceedings that could have a
material adverse effect on us and other similarly situated carriers. In
addition, our nature as a regulated entity may adversely affect our ability to
engage in, or rapidly consummate, certain transactions and may require us to
expend additional resources in due diligence and filings related to FCC and
other requirements, as compared to unregulated entities.

FCC Common Carrier Regulation Under Title II

  Under Title II of the Act, we are: (1) required to offer service upon
reasonable request; (2) prohibited from imposing unjust or unreasonable rates,
terms or conditions of service; (3) proscribed from unjustly or unreasonably
discriminating among customers; (4) required to reserve communications capacity
for law enforcement surveillance operations and to make technical network
changes to facilitate such surveillance; (5) required to make our services and
products accessible to, and usable by, Americans with disabilities, if readily
achievable; and (6) required to comply with limitations on our use of customer
proprietary network information. We are entitled to certain benefits when
negotiating interconnection arrangements with other communications carriers
(such as resale, number portability and reciprocal compensation), but we are
subject to those same requirements when other carriers seek to interconnect with
our network. While the rates of common carriers are subject to the FCC's
jurisdiction, the FCC forbears from requiring CMRS carriers to file tariffs for
their services. Common carriers, including CMRS providers, are also prohibited
under Sections 201 and 202 of the Act from unreasonably restricting the resale
of their services and are required to offer unrestricted resale. There can be no
assurance that the FCC will not choose to regulate common carriers more
comprehensively, which could have an adverse effect on our operations.

FCC Radio License Regulation Under Title III

  Among other things, Title III of the Act:

     .  does not permit licenses to be granted or held by entities that have
        been subject to the denial of federal benefits;

     .  requires us to seek prior approval from the FCC to transfer control of
        us or to assign our radio authorizations (including disaggregating sub-
        bands of our radio frequencies or partitioning geographic license
        areas), except in very limited circumstances; and

     .  limits foreign ownership in certain radio licensees, including PCS
        providers.

  While we believe that we comply with Title III, any future violation of these
limitations could result in license revocation, forfeiture and/or the forced
restructuring of our ownership to comply with the rules, any of which could have
a material adverse effect on us. The Title III restrictions could also
materially adversely affect our ability to attract additional equity financing
from certain entities. See "Risk Factors--Government regulation, changes in our
licenses or other governmental action could adversely affect us."

FCC CMRS Regulation

  The FCC rules and policies impose substantial regulations on CMRS providers.
Among other regulations, broadband CMRS providers such as us: (1) incur costs as
a result of required contributions to the Universal Service Fund, the
Telecommunications

                                      -46-
<PAGE>

Relay Service, FCC regulatory fees, the administration of the
North American Numbering Plan and other federal programs; (2) are prohibited
from acquiring or holding an attributable interest in more than 45 MHz of
combined broadband PCS, cellular or SMR spectrum in the same geographic area;
(3) are required to provide "manual" roaming service to enable a customer of one
provider to obtain service while roaming in another carrier's service area; (4)
are required to route emergency calls to Public Safety Answering Points
("PSAPs") and provide PSAPs with certain enhanced 9-1-1 information regarding
the called number and the location of the caller; and (5) will be required to
begin to implement local number portability after March 31, 2000, under certain
circumstances, which will allow subscribers to retain their telephone numbers
when changing service providers. Any violation of the CMRS regulations could
result in a revocation or forfeiture of our licenses that would have a material
adverse effect on us. In addition, there can be no assurance that the FCC will
not choose to regulate CMRS providers more comprehensively, which could have an
adverse effect on our operations.

FCC PCS Regulation

  We are subject to service-specific regulations under Part 24 of the FCC's
rules. Among other things, Part 24 provides that PCS licensees, such as us, are
granted licenses for a 10-year term, subject to renewal. Under these policies,
we will be granted a renewal expectancy that would preclude the FCC from
considering competing applications if we have (1) provided "substantial"
performance, that is "sound, favorable and substantially above a level of
mediocre service just minimally justifying renewal" and (2) substantially
complied with FCC rules and policies and the Act. While we intend to structure
our operations to secure a renewal expectancy, there can be no assurance that a
renewal expectancy will be granted and, if the renewal expectancy is not
granted, that our licenses will be renewed. Our failure to obtain renewal of our
licenses would have a material adverse effect on our operations.

  Part 24 also contains regulations governing the transmission characteristics
of PCS handsets and base stations and other technical requirements. PCS
licensees are required to comply with limits intended to ensure that such
operations do not interfere with radio services in other markets or in other
spectrum bands and to ensure emissions from mobile transmitters do not cause
adverse health effects. We are also subject to minimum construction requirements
that will require us to deploy facilities with service coverage of a particular
amount of the population of our licensed area within specified time periods. See
"Risk Factors--We could lose our F-Block and C-Block licenses if we fail to meet
financial and other tests." While we intend to comply with all PCS regulations
in effect, any violation of the PCS regulations could result in a revocation or
forfeiture that would have a material adverse effect on us. In addition, there
can be no assurance that the FCC will not choose to regulate PCS licensees more
comprehensively, which could have an adverse effect on our operations.

Relocation of Fixed Microwave Licensees

  Because PCS carriers are utilizing spectrum occupied by existing microwave
licensees, the FCC has adopted special regulations governing the relocation of
incumbent systems and cost-sharing among licensees that pay to relocate
microwave incumbents. Relocation usually requires a PCS operator to compensate
an incumbent for the costs of system modifications and new equipment required to
move the incumbent to new spectrum, including possible "premium" costs for early
relocation to alternate spectrum. The transition plan allows most microwave
users to operate in the PCS spectrum for a one-year voluntary negotiation and an
additional one-year mandatory negotiation period following the issuance of the
PCS license. These periods are longer for public safety entities. We have
entered into all necessary agreements for microwave relocation. There can be no
assurance, however, that relocated licenses will not exercise their rights to
move back to their original sites in the event the new sites are inadequate. Any
delay in the relocation of microwave users to other spectrum also may affect
adversely our ability to operate our network. See "Management's Discussion and
Analysis of Financial Condition and Results of Operations."

FCC and Federal Aviation Administration Facilities Regulation

  Because we will acquire antenna sites for use in our network, we will become
subject to FCC and Federal Aviation Administration regulations governing
registration of towers, the marking and lighting of certain structures and
regulations governing compliance with the National Environmental Policy Act of
1969, which requires carriers to assess the impact of their operations on the
environment, including the health effects of radio frequency radiation on
humans.

FCC Designated Entity and Small Business Regulation

  TeleCorp Holding was the winning bidder for four licenses in the auction of F-
Block licenses. With respect to those licenses, and additional C-Block and F-
Block licenses acquired through later auctions and transactions, we (1) believe
we qualify as a "very small business" (as defined) and as Entrepreneurs (as
defined), and (2) intend to diligently pursue and maintain our qualification as
a "very small business" and as Entrepreneur in a manner intended to ensure
compliance with the applicable FCC rules. We rely on representations of our
investors to determine our compliance with the FCC's rules applicable to C-Block
and F-

                                      -47-
<PAGE>

Block licenses. There can be no assurance, however, that our investors or
we will continue to satisfy these requirements during the term of any PCS
license granted to TeleCorp Holding or TeleCorp PCS, LLC, our wholly owned
subsidiary, or that we will be able successfully to implement divestiture or
other mechanisms included in our corporate charter that are designed to ensure
compliance with FCC rules. Any non-compliance with the FCC "very small business"
and Entrepreneurs rules could subject us to penalties, including a fine,
revocation of our PCS licenses, acceleration of installment payment obligations
or retroactive loss of bidding credits. See "Risk Factors--We have substantial
debt which we may not be able to service," "--Government regulation, changes in
our licenses or other governmental action could adversely affect us" and "--We
could lose our F-Block and C-Block licenses if we fail to meet financial and
other tests."

  Entrepreneurs. In order to hold a C-Block and F-Block license, an entity and
its affiliates must have had less than $125 million in average gross revenues in
the last two years and less than $500 million in total assets at the time it
filed its application to acquire the C-Block or F-Block licenses (such
qualifying entity, an "Entrepreneur"). In calculating revenues and assets for
such purposes, the FCC includes the gross revenues and total assets of our
affiliates, those entities that hold attributable interests in us and the
affiliates of such entities. However, the revenues and assets of certain
affiliates are not attributable to the licensee if the licensee maintains an
organizational structure that satisfies certain Control Group Requirements (as
defined). For at least five years after the initial licensing of a C-Block or F-
Block license, a licensee must continue to meet the control group requirements
to continue to qualify for the installment payment program and must continue to
meet the "very small business" requirements to continue to qualify for the
bidding credits received in the auction.

  Very Small Business.  We are also structured under the FCC's rules to qualify
as a "very small business." A "very small business" is an entity that, together
with its affiliates and entities that hold interests in the applicant and their
affiliates, has average annual gross revenues of not more than $15 million for
the previous three calendar years. As a result of our classification as a "very
small business," we were eligible for both a 25% bidding credit and for a
preferential installment payment program.  In the more recent reauction, Viper
Wireless qualified as a "very small business," eligible for the same bidding
credit, but the FCC ceased to provide installment payment financing.

  Control Group Requirements.  To avoid attribution of the revenues and assets
of certain investors, we are required to maintain a conforming control group and
to limit the amount of equity held by such entities on a fully-diluted basis.
These requirements mandate that the Control Group, among other things, have and
maintain both actual (de facto) and legal (de jure) control of the licensee.
Under these control group requirements, (1) an established group of investors
meeting certain financial qualifications must own at least three-fifths of the
control group's equity (i.e., 15% of the licensee's overall equity) on a fully-
diluted basis and at least 50.1% of the voting power in the licensee entity and
(2) additional members of the control group must hold, on a fully-diluted basis,
the remaining 10% equity interest in the licensee entity. Additional Members may
be non-controlling institutional investors, including most venture capital
firms. A C-Block or F-Block licensee must have met the requirements at the time
it filed its application to acquire such licenses and must continue to meet the
requirements for five years following the date that a C-Block or F-Block license
is granted. Commencing the fourth year of the license term, the FCC rules (1)
eliminate the requirement that Additional Members hold the 10% equity interest
and (2) allow the Qualifying Investors to reduce the minimum required equity
interest from 15% to 10%. If the FCC were to determine that we did not comply
with the regulations, we would be required to attribute the revenues of
additional stockholders, which would likely cause the loss of our status both as
an Entrepreneur and a "very small business." Loss of such status would have a
materially adverse effect on us.

  FCC C-Block and F-Block Transfer Restrictions. During the first five years of
their license terms, C-Block and F-Block PCS licensees may only transfer or
assign their license, or any partitioned or disaggregated portion of, to other
qualified Entrepreneurs. Such acquiring entities would take over the license, or
any portion of the license, subject to separately established installment
payment obligations. After five years, licenses are transferable to
Entrepreneurs and non-Entrepreneurs alike, subject to unjust enrichment
penalties. If transfer occurs during years six through ten of the initial
license term to a company that does not qualify for the same level of auction
preferences as the transferor, such a sale would be subject to immediate payment
of the outstanding balance of the government installment payment debt and
payment of any unjust enrichment assessments as a condition of transfer. The FCC
has also initiated transfer disclosure regulations that require licensees who
transfer control of or assign a PCS license within the first three years to file
associated contracts for sale, option agreements, management agreements or other
documents disclosing the total consideration that the applicant would receive in
return for the transfer or assignment of its license(s). If the FCC determines
that a transferor or assignor is being "unjustly enriched" by a proposed sale or
transfer of a license, it may condition its approval of the transaction on
payment of money to the U.S. Treasury, accelerate installment payments or
require repayment of bidding credits.

                                      -48-
<PAGE>

State and Local Regulation

  The FCC permits the states to regulate terms and conditions of our CMRS
services other than rates and entry and may regulate all aspects of our
intrastate toll services. State jurisdiction also extends to regulating the
intrastate portion of services offered by local exchange carriers, and therefore
the rates we must pay to acquire certain critical facilities from other common
carriers. The FCC also delegates authority to the states to administer numbering
resources, subject to federal oversight, and have other responsibilities that
impact the nature and profitability of our operations, including the ability to
specify cost-recovery mechanisms for network modifications to support enhanced
9-1-1 services. States and localities also regulate construction of new antenna
site facilities and are responsible for zoning and developmental regulations
that can materially impact our timely acquisition of sites critical to our radio
network. The states and localities regularly conduct legislative, rulemaking and
adjudicatory proceedings on matters within their jurisdiction that could have a
material adverse effect on us and other similarly situated carriers. States may
petition the FCC to expand their jurisdiction over CMRS rates and entry under
certain conditions. There can be no assurance that a state in which we operate
will not attempt to engage in more comprehensive regulation of our operations,
which could increase the costs of providing service and materially affect our
ability to operate in that state.

Intellectual Property

  The AT&T and globe design logo is a service mark registered with the U.S.
Patent and Trademark Office. AT&T owns the service mark. We use the AT&T and
globe design logo, on a royalty free basis, with equal emphasis on our SunCom
brand and logo, solely within our licensed area in connection with marketing,
offering and providing certain licensed services to end-users and resellers. Our
license agreement with AT&T grants us the right and license to use certain
licensed marks on certain permitted mobile phones. This license agreement
contains numerous restrictions with respect to the use and modification of
certain licensed marks. See "Certain Relationships and Related Transactions--
AT&T Agreements."

  We, Triton PCS and Tritel Communications have adopted a common brand, SunCom,
that is co-branded with equal emphasis with the AT&T brand name and logo.  Each
of the SunCom companies owns one-third of Affiliate License Co., which owns the
SunCom name.  We and the other SunCom companies license the SunCom name from
Affiliate License Co.  We use such brand to market, offer and provide services
to end-users and resellers. See "--Marketing Strategy," "Certain Relationships
and Related Transactions--Other Related Party Transactions."

  Triton PCS recently paid $975,000 to settle a potential dispute regarding
prior use of a version of the SunCom brand. In connection with this settlement,
Triton PCS transferred the SunCom trademark to Affiliate License Co. for
$650,000. Each of the other SunCom Companies agreed to pay $325,000 as a royalty
fee to license such trademark from Affiliate License Co.


Employees

  As of March 31, 1999, we employed approximately 515 people. None of our
employees currently are represented by a union. We believe that our relations
with our employees are good.

Properties

  We lease space for our switches in New Orleans, Boston and Puerto Rico and for
our network operators center, a switch and our customer care and data center in
Memphis. Further, we lease space for our base station transmitter equipment, and
we lease office space for our headquarters and regional offices.

Legal Proceedings

  We are not a party to any lawsuit or proceeding which is likely, in the
opinion of management, to have a material adverse effect on our financial
position, results of operations and cash flows. We are a party to routine
filings and customary regulatory proceedings with the FCC relating to our
operations.

                                      -49-
<PAGE>

                              THE EXCHANGE OFFER

Purpose and Effects

  The Exchange Offer is designed to provide to holders of the Old Notes an
opportunity to acquire the Exchange Notes which, unlike the Old Notes, will be
freely transferable at all times, provided that the holder is not our affiliate.

  The Old Notes were originally issued and sold on April 23, 1999 in the
principal amount at maturity of $575.0 million in a transaction exempt from the
registration requirements of the Securities Act.  The Old Notes may not be
reoffered, resold or transferred except under a registration statement filed
with the SEC or unless an exemption from the registration requirements of the
Securities Act is available.

  We are making the Exchange Offer in reliance on the position of the staff of
the SEC as set forth in certain no-action letters addressed to other parties in
other transactions.  However, we have not sought our own no-action letter and
there can be no assurance that the staff of the SEC would make a similar
determination with respect to the Exchange Offer as in such other circumstances.
Based upon these interpretations by the staff of the SEC, we believe that the
Exchange Notes issued in the Exchange Offer in exchange for the Old Notes may be
offered for resale, resold and otherwise transferred by a holder of the Exchange
Notes other than by (1) a broker-dealer who purchased such Old Notes directly
from us to resell under Rule 144A under the Securities Act or any other
available exemption under the Securities Act or (2) a person that is our
"affiliate," as defined in Rule 405 under the Securities Act, without compliance
with the registration and prospectus delivery provisions of the Securities Act,
provided that such Exchange Notes are acquired in the ordinary course of such
holder's business and that such holder is not participating, and has no
arrangement or understanding with any person to participate, in the distribution
of such Exchange Notes.  Holders of the Old Notes accepting the Exchange Offer
for the purpose of participating in a distribution of the Exchange Notes may not
rely on the position of the staff of the SEC as set forth in these no-action
letters and would have to comply with the registration and prospectus delivery
requirements of the Securities Act in connection with any resale of the Exchange
Notes.  A resale in the United States by a holder of the Exchange Notes who is
using the Exchange Offer to participate in the distribution of the Exchange
Notes must be covered by a registration statement containing the selling
securityholder information required by Item 507 of Regulation S-K under the
Securities Act.

  The Exchange Notes will be freely transferable by the holders of such Notes,
subject to the limitations described in the immediately preceding paragraph.
The Exchange Notes will be identical in all respects, including interest rate,
maturity, security, guaranty and restrictive covenants, to the Old Notes for
which they may be exchanged in the Exchange Offer, except the Exchange Notes
will not confer registration rights or bear penalty interest.  Holders who do
not exchange their Old Notes in the Exchange Offer will continue to hold the Old
Notes which are subject to restrictions on transfer.

  Each broker-dealer that receives the Exchange Notes for its own account in
exchange for the Old Notes, where such Old Notes were acquired by such broker-
dealer as a result of market-making or other trading activities, must
acknowledge that it will deliver a prospectus in connection with any resale of
such Exchange Notes.  See "Plan of Distribution."

Terms of the Exchange Offer

  Promptly after the registration statement of which this prospectus constitutes
a part has been declared effective, we will offer the Exchange Notes in exchange
for surrender of the Old Notes.  We will keep the Exchange Offer open for not
less than 30 days (or longer if required by applicable law) after the date on
which notice of the Exchange Offer is mailed to the registered holders of the
Old Notes.  For each $1,000 principal amount at maturity of the Old Notes
validly tendered to us in the Exchange Offer and not withdrawn by the holder of
such Old Notes, the holder of such Old Notes will receive $1,000 principal
amount at maturity of the Exchange Notes.  Interest on each Exchange Note will
accrue from the date of the original issue of the Old Notes.  The Exchange Notes
evidence the same debt as the Old Notes and are issued under and entitled to the
same benefits under the indenture governing the Notes as the Old Notes.  In
addition, the Exchange Notes and the Old Notes are treated as one series of
securities under the indenture governing the Notes.

  In the event that (1) neither the registration statement of which this
prospectus constitutes a part nor a Shelf Registration Statement, as defined in
the Exchange and Registration Rights Agreement, with respect to the Old Notes is
filed on or prior to the 60th day after the date of original issue of the Old
Notes, (2) neither of such registration statements is declared effective by the
SEC on or prior to the 180th day after the date of original issue of the Old
Notes, or within 45 days after the publication of a change in applicable law or
interpretation of law by the SEC's staff that would require us to file a Shelf
Registration Statement (the "Effectiveness Target Date"), (3) we fail to
consummate the Exchange Offer on or prior to the 210th day after the date of
original issuance of the Old Notes, or (4) the Shelf Registration Statement is
declared effective but thereafter ceases to be effective or usable in connection
with resales of the Old Notes during the period specified in the Exchange and
Registration

                                      -50-
<PAGE>

Rights Agreement (each such event referred to in clauses (1)through (4) above as
a "Registration Default"), then we must pay liquidated damages to each holder of
the Old Notes, during the period of one or more such Registration Defaults, in
an amount equal to $0.192 per week per $1,000 of Accreted Value, as defined in
the indenture governing the Notes, of the Old Notes held by such holder until
the cure of all Registration Defaults. Such interest will be payable on the next
scheduled interest payment date.

  As of April 23, 1999, $575.0 million aggregate principal amount at maturity of
the Old Notes was outstanding.  This prospectus and the Letter of Transmittal
are being sent to all registered holders of the Old Notes.

  Tendering holders of the Old Notes will not be required to pay brokerage
commissions or fees or, subject to the instructions in the Letter of
Transmittal, transfer taxes with respect to the exchange of the Old Notes in the
Exchange Offer.  We will pay all charges and expenses, other than certain
transfer taxes which may be imposed, in connection with the Exchange Offer.  See
"Transfer Taxes" below.

  Holders of the Old Notes do not have any appraisal or dissenters' rights under
the Delaware General Corporation Law in connection with the Exchange Offer.

Period for Tendering Old Notes

  Upon the terms and subject to the conditions set forth in this prospectus and
in the accompanying Letter of Transmittal which together constitute the Exchange
Offer, we will accept for exchange the Old Notes which are properly tendered on
or prior to the Expiration Date and not withdrawn as permitted below. As used
within the Exchange Offer, the term "Expiration Date" means 5:00 p.m., New York
City time, on , 1999; PROVIDED, HOWEVER, that our obligation to accept the Old
Notes for exchange in the Exchange Offer is subject to certain conditions set
forth under "--Certain Conditions to the Exchange Offer" below.

  We expressly reserve the right, at any time or from time to time, to extend
the period of time during which the Exchange Offer is open, and thereby delay
acceptance of exchange of any Old Notes, by giving oral or written notice of
such extension to the holders of such Old Notes as described below.  During any
such extension, all Old Notes previously tendered will remain subject to the
Exchange Offer and we may accept them for exchange.  Any Old Notes not accepted
for exchange for any reason will be returned without expense to the tendering
holder of such Old Notes as promptly as practicable after the expiration or
termination of the Exchange Offer.

  We expressly reserve the right to amend or terminate the Exchange Offer, and
not to accept for exchange any Old Notes not already accepted for exchange, upon
the occurrence of any of the conditions specified below under "--Certain
Conditions to the Exchange Offer."  We will give oral or written notice of any
extension, amendment, non-acceptance or termination to the holders of the Old
Notes as promptly as practicable.  We shall issue such notice, in the case of
any extension, as a press release or other public announcement no later than
9:00 a.m., New York City time, on the next business day after the previously
scheduled Expiration Date.

Procedures for Tendering Old Notes

  Except as set forth below, a holder of the Old Notes who wishes to tender the
Old Notes for exchange in the Exchange Offer must send a properly completed and
duly executed Letter of Transmittal, including all other documents required by
such Letter of Transmittal, to Bankers Trust Company (the "Exchange Agent") at
the address set forth below under "--Exchange Agent" on or prior to the
Expiration Date.  In addition, either (1) certificates for such Old Notes must
be received by the Exchange Agent, or (2) a timely confirmation of a book-entry
transfer (a "Book-Entry Confirmation") of such Old Notes into the Exchange
Agent's account at The Depository Trust Company (the "Book-Entry Transfer
Facility") under the procedure for book-entry transfer described below, must be
received by the Exchange Agent on or prior to the Expiration Date, or (3) the
holder of the Old Notes must comply with the guaranteed delivery procedures
described below.

  Each exchanging holder of the Old Notes will be required to represent in its
Letter of Transmittal that such holder is acquiring the Exchange Notes in the
ordinary course of business, is not engaged in, and does not intend to engage
in, a distribution of the Exchange Notes and is not our affiliate or an
affiliate of our subsidiary guarantors.

  THE METHOD OF DELIVERY OF THE OLD NOTES, LETTERS OF TRANSMITTAL AND ALL OTHER
REQUIRED DOCUMENTS IS AT THE ELECTION AND RISK OF THE HOLDER OF THE OLD NOTES.
IF SUCH DELIVERY IS BY MAIL, IT IS RECOMMENDED THAT REGISTERED MAIL, PROPERLY
INSURED, WITH RETURN RECEIPT REQUESTED, BE USED.  IN ALL CASES SUFFICIENT TIME
SHOULD BE ALLOWED TO ASSURE TIMELY DELIVERY.  NO LETTERS OF TRANSMITTAL OR OLD
NOTES SHOULD BE SENT TO US.

                                      -51-
<PAGE>

  Each broker-dealer that receives the Exchange Notes for its own account in
exchange for the Old Notes, where such Old Notes were acquired by such broker-
dealer as a result of market-making or other trading activities, must
acknowledge that it will deliver a prospectus in connection with any resale of
such Exchange Notes.  See "Plan of Distribution."

  Signatures on a Letter of Transmittal or a notice of withdrawal, as the case
may be, must be guaranteed unless the Old Notes surrendered for exchange in the
Exchange Offer are tendered (1) by a registered holder of the Old Notes who has
not completed the box entitled "Special Issuance Instructions" or "Special
Delivery Instructions" on the Letter of Transmittal or (2) for the account of an
Eligible Institution, as defined below.  In the event that signatures on a
Letter of Transmittal or a notice of withdrawal are required to be guaranteed,
such guarantees must be made by a firm which is a member of a registered
national securities exchange or a member of the National Association of
Securities Dealers, Inc. or by a commercial bank or trust company having an
office or correspondent in the United States (collectively, "Eligible
Institutions").  If the Old Notes are registered in the name of a person other
than a signer of the Letter of Transmittal, the Old Notes surrendered for
exchange must be endorsed by, or be accompanied by a written instrument or
instruments of transfer or exchange, in satisfactory form as determined by us in
our sole discretion, duly executed by the registered holder with the signature
guaranteed by an Eligible Institution.

  All questions as to the validity, form, eligibility (including time of
receipt) and acceptance of the Old Notes tendered for exchange will be
determined by us in our sole discretion, which determination shall be final and
binding.  We reserve the absolute right to reject any and all tenders of any
particular Old Notes not properly tendered or to not accept any particular Old
Notes which acceptance might, in our judgment or the judgment of our counsel, be
unlawful.  We also reserve the absolute right to waive any defects or
irregularities or conditions of the Exchange Offer as to any particular Old
Notes either before or after the Expiration Date.  Our interpretation of the
terms and conditions of the Exchange Offer either before or after the Expiration
Date (including the Letter of Transmittal and the instructions) shall be final
and binding on all parties.  Unless waived, any defects or irregularities in
connection with tenders of Old Notes for exchange must be cured within such
reasonable period of time as we shall determine.  None of us, the Exchange Agent
nor any other person shall be under any duty to give notification of any defect
or irregularity with respect to any tender of Old Notes for exchange, nor shall
any of us incur any liability for failure to give such notification.  Tenders of
Old Notes received by the Exchange Agent that are not properly tendered and as
to which the irregularities have not been cured or waived will be returned by
the Exchange Agent to the tendering holder, unless otherwise provided in the
Letter of Transmittal, as soon as practicable following the Expiration Date.

  If the Letter of Transmittal is signed by a person or persons other than the
registered holder or holders of the Old Notes, such Old Notes must be endorsed
or accompanied by appropriate powers of attorney, in either case signed exactly
as the name or names of the registered holder or holders that appear on the Old
Notes.

  If the Letter of Transmittal or any Old Notes or powers of attorney are signed
by trustees, executors, administrators, guardians, attorneys-in-fact, officers
of corporations or others acting in a fiduciary or representative capacity, such
persons should so indicate when signing, and, unless waived by us, must submit
to us proper evidence satisfactory to us of their authority to so act.

  In all cases, issuance of the Exchange Notes for the Old Notes that are
accepted for exchange in the Exchange Offer will be made only after timely
receipt by the Exchange Agent of certificates for such Old Notes or a timely
Book-Entry Confirmation of such Old Notes in the Exchange Agent's account at the
Book-Entry Transfer Facility, a properly completed and duly executed Letter of
Transmittal and all other required documents.  If we do not accept any tendered
Old Notes for any reason or the Old Notes are submitted for a greater principal
amount than the holder of such Old Notes desires to exchange, we will return
such unaccepted or non-exchanged Old Notes without expense to the tendering
holder of such Old Notes as promptly as practicable after the Exchange Offer
expires or terminates. In the case of Old Notes tendered by book-entry transfer
into the Exchange Agent's account at the Book-Entry Transfer Facility under the
book-entry procedures described below, such non-exchanged Old Notes will be
credited to an account maintained with such Book-Entry Transfer Facility as
promptly as practicable after the termination of the Exchange Offer.

Book-Entry Transfer

  The Exchange Agent will make a request to establish an account with respect to
the Old Notes at the Book-Entry Transfer Facility for purposes of the Exchange
Offer within two business days after the date of this prospectus, and any
financial institution that is a participant in the Book-Entry Transfer
Facility's systems may make book-entry delivery of the Old Notes by causing the
Book-Entry Transfer Facility to transfer such Old Notes into the Exchange
Agent's account at the Book-Entry Transfer Facility in accordance with such
Book-Entry Transfer Facility's procedures for transfer.  Although the Old Notes
may be delivered through book-entry transfer at the Book-Entry Transfer
Facility, the Letter of Transmittal, with any required signature guarantees and
any other required documents, must, in any case, be sent to and received by the
Exchange Agent at the address set

                                      -52-
<PAGE>

forth below under "--Exchange Agent" on or prior to the Expiration Date or the
guaranteed delivery procedures described below must be complied with. Holders of
Old Notes may use copies of the Letter of Transmittal.

Acceptance of Old Notes for Exchange; Delivery of Exchange Notes

  Tenders of Old Notes will be accepted only in principal amounts at maturity of
$1,000 and integral multiples of $1,000.

  Upon the terms and subject to the conditions of the Exchange Offer, we will
accept all Old Notes validly tendered and not withdrawn promptly prior to 5:00
p.m. on the Expiration Date.  We will deliver the Exchange Notes in exchange for
the Old Notes promptly following acceptance of the Old Notes.

  For purposes of the Exchange Offer, we shall be deemed to have accepted
validly tendered Old Notes when, as and if we have given oral or written notice
to the Exchange Agent.  The Exchange Agent will act as agent for the tendering
holders of the Old Notes for the purposes of receiving the Exchange Notes.
Under no circumstances will we or the Exchange Agent pay interest because of any
delay in making such payment or delivery.

  Our acceptance for exchange of the Old Notes tendered in the Exchange Offer
will constitute a binding agreement between the tendering holder and us upon the
terms and subject to the conditions of the Exchange Offer.

  If any tendered Old Notes are not accepted for exchange because of an invalid
tender, the occurrence of certain other events or otherwise, we will return any
such unaccepted Old Notes, at our expense, to their tendering holder as promptly
as practicable after the expiration or termination of the Exchange Offer.

Guaranteed Delivery Procedures

  If a registered holder of the Old Notes desires to tender such Old Notes and
such Old Notes are not immediately available, or time will not permit such
holder's Old Notes or other required documents to reach the Exchange Agent
before the Expiration Date, or the procedure for book-entry transfer cannot be
completed on a timely basis, a tender may be effected if (1) the tender is made
through an Eligible Institution, (2) prior to the Expiration Date, the Exchange
Agent receives from such Eligible Institution a properly completed and duly
executed Notice of Guaranteed Delivery, substantially in the form provided by
us, by facsimile transmission, mail or hand delivery, setting forth the name and
address of the holder of the Old Notes, the certificate numbers of such Old
Notes (except in the case of book-entry tenders) and the principal amount of the
Old Notes tendered, stating that the tender is being made thereby and
guaranteeing that, within three NYSE trading days after the Expiration Date, the
Letter of Transmittal together with the certificates for all physically tendered
Old Notes, in proper form for transfer, or a Book-Entry Confirmation, and any
other documents required by the Letter of Transmittal will be deposited by the
Eligible Institution with the Exchange Agent, and (3) such properly completed
and executed Letter of Transmittal (or a copy thereof) together with the
certificates for all physically tendered Old Notes, in proper form for transfer,
or a Book-Entry Confirmation, as the case may be, and all other documents
required by the Letter of Transmittal, are received by the Exchange Agent within
three NYSE trading days after the Expiration Date.  Holders of Old Notes may use
copies of the Letter of Transmittal.

Withdrawal Rights

  You may withdraw your tender of the Old Notes at any time prior to 5:00 p.m.
on the Expiration Date.

  For a withdrawal to be effective, the Exchange Agent must receive a written
notice of withdrawal at the address set forth below under "--Exchange Agent."
Any such notice of withdrawal must (1) specify the name of the person having
tendered the Old Notes to be withdrawn, (2) identify the Old Notes to be
withdrawn, including the certificate numbers and principal amount of such Old
Notes (except in the case of book-entry tenders), (3) be signed by the holder of
the Old Notes in the same manner as the original signature on the Letter of
Transmittal by which such Old Notes are tendered or be accompanied by sufficient
documents of transfer and (4) specify the name in which such Old Notes are
registered, if different from that of the withdrawing holder.  If certificates
for the Old Notes have been delivered or otherwise identified to the Exchange
Agent, then, prior to the release of such certificates, the withdrawing holder
must also submit the certificate numbers of the particular certificates to be
withdrawn and a signed notice of withdrawal with signatures guaranteed by an
Eligible Institution unless such holder of the Old Notes is an Eligible
Institution.  If the Old Notes have been tendered for book-entry transfer as
described above, any notice of withdrawal must specify the name and number of
the account at the Book-Entry Transfer Facility to be credited with the
withdrawn Old Notes and otherwise comply with the procedures of such facility.
We will determine all questions as to the validity, form and eligibility
(including time of receipt) of such notices, and our determination shall be
final and binding on all parties.  Any Old Notes so withdrawn will be deemed not
to have been validly tendered for exchange.  Any Old Notes which have been
tendered for exchange but which are not exchanged for any reason will be
returned to the holder of such Old Notes without cost to such

                                      -53-
<PAGE>

holder as soon as practicable after withdrawal, rejection of tender or
termination of the Exchange Offer. In the case of the Old Notes tendered by
book-entry transfer into the Exchange Agent's account at the Book-Entry Transfer
Facility under the book-entry transfer procedures described above, such Old
Notes will be credited to an account maintained with such Book-Entry Transfer
Facility for the Old Notes. Properly withdrawn Old Notes may be retendered by
following one of the procedures described under "--Procedures for Tendering Old
Notes" above at any time on or prior to the Expiration Date.

Certain Conditions to the Exchange Offer

  Despite any other provision of the Exchange Offer, we will not be required to
accept for exchange, or to issue the Exchange Notes in exchange for, any Old
Notes, and may terminate or amend the Exchange Offer, if at any time before the
acceptance of such Old Notes for exchange or the exchange of the Exchange Notes
for such Old Notes, any of the following events shall occur:

      (1) such acceptance or issuance would violate applicable law or any
          applicable interpretation of the staff of the SEC;

      (2) any action or proceeding by or before any court or governmental agency
          with respect to the Exchange Offer shall be instituted or pending
          which, in our sole judgment, might impair our ability to proceed with
          the Exchange Offer; or

      (3) any law, statute, rule or regulation shall have been proposed, adopted
          or enacted which, in our sole judgment, might materially impair our
          ability to proceed with the Exchange Offer.

  The foregoing conditions are for our sole benefit and we may assert them
regardless of the circumstances giving rise to any such condition or we may
waive them in whole or in part at any time and from time to time in our sole
discretion.  Our failure at any time to exercise any of our rights shall not be
deemed a waiver of any such right and each such right shall be deemed an ongoing
right which we may assert at any time and from time to time.

  In addition, we will not accept for exchange any Old Notes tendered, and no
Exchange Notes will be issued in exchange for any such Old Notes, if at such
time any stop order shall be threatened or in effect with respect to the
registration statement of which this prospectus constitutes a part or the
qualification of the indenture governing the Notes under the Trust Indenture Act
of 1939.

Exchange Agent

  Bankers Trust Company has been appointed as the Exchange Agent for the
Exchange Offer.  All executed Letters of Transmittal should be directed to the
Exchange Agent at the address set forth below.  Questions and requests for
assistance, requests for additional copies of the prospectus or the Letter of
Transmittal and requests for Notices of Guaranteed Delivery should be directed
to the Exchange Agent, addressed as follows:

                                   BANKERS TRUST COMPANY
<TABLE>
                  By Facsimile:                                              By Mail:
<S>                                                     <C>
                  (212)669-0772                                       Bankers Trust Company
           Attention: Customer Service                           Corporate Trust and Agency Group
     Confirm by Telephone to: (212) 250-4730                      Four Albany Street, 4th Floor
                                                                     New York, New York 10006
                                                               Attention:  Corporate Trust Services


            By Hand before 4:30 p.m.:                   By Overnight Courier and By Hand after 4:30 p.m.:

              Bankers Trust Company                                   Bankers Trust Company
         Corporate Trust and Agency Group                        Corporate Trust and Agency Group
          Four Albany Street, 4th Floor                           Four Albany Street, 4th Floor
             New York, New York 10006                                New York, New York 10006
Attention:  Anthony M. Nista, Assistant Treasurer       Attention:  Anthony M. Nista, Assistant Treasurer
</TABLE>

                                      -54-
<PAGE>

  DELIVERY OF THIS INSTRUMENT TO AN ADDRESS OTHER THAN AS SET FORTH ABOVE OR
TRANSMISSION OF INSTRUCTIONS VIA FAX TRANSMISSION OTHER THAN AS SET FORTH ABOVE
DOES NOT CONSTITUTE A VALID DELIVERY.

Fees and Expenses

  We will not make any payment to brokers, dealers, or others soliciting
acceptances of the Exchange Offer.

  We will pay certain other expenses to be incurred in connection with the
Exchange Offer, including the fees and expenses of the Exchange Agent,
accounting and certain legal fees.

Transfer Taxes

  Holders who tender their Old Notes for exchange will not be obligated to pay
any transfer taxes in connection with such exchange, except that if a holder of
the Old Notes instructs us to register the Exchange Notes in the name of, or
requests that the Old Notes not tendered or not accepted in the Exchange Offer
be returned to, a person other than the registered tendering holder, or if a
transfer tax is imposed for any reason other than the exchange of the Old Notes
in the Exchange Offer, the amount of any such transfer taxes, whether imposed on
the registered holder of the Old Notes or any other person, will be the
responsibility of the registered tendering holder.

Consequences of Failure to Exchange

  The Old Notes of holders who do not exchange their Old Notes for the Exchange
Notes in the Exchange Offer will continue to have restrictions on transfer since
we issued the Old Notes under exemptions from, or in transactions not subject
to, the registration requirements of the Securities Act and applicable state
securities laws.  In general, the Old Notes may not be offered or sold, unless
registered under the Securities Act, except under an exemption from, or in a
transaction not subject to, the Securities Act and applicable state securities
laws.

  We do not currently anticipate that we will register the Old Notes under the
Securities Act.  To the extent that the Old Notes are tendered in connection
with the Exchange Offer, any trading market for the Old Notes not tendered in
connection with the Exchange Offer could be adversely affected.  The tender of
the Old Notes in the Exchange Offer may have an adverse effect upon, and
increase the volatility of, the market prices of the Old Notes due to a
reduction in liquidity.

Accounting Treatment

  The Exchange Notes will be recorded at the same carrying value as the Old
Notes, as reflected in our accounting records on the date of the exchange.
Accordingly, no gain or loss for accounting purposes will be recognized.  The
expenses of the Exchange Offer will be expensed over the term of the Exchange
Notes.

                                      -55-
<PAGE>

                                   MANAGEMENT

Executive Officers and Directors

  The table below sets forth certain information regarding our directors and
executive officers.


<TABLE>
<CAPTION>
Name                                                 Age  Position
- ----                                                 ---  --------
<S>                                                  <C>  <C>
Gerald T. Vento....................................   52  Chief Executive Officer and Chairman
Thomas H. Sullivan.................................   37  Executive Vice President, Chief Financial Officer and Director
Julie Dobson.......................................   42  Vice President and Chief Operating Officer
Michael R. Hannon..................................   39  Director
Scott Anderson.....................................   40  Director
Rohit M. Desai.....................................   60  Director
Gary Fuqua.........................................   48  Director
James M. Hoak......................................   55  Director
Mary Hawkins Key...................................   48  Director
William Kussell....................................   40  Director
William Laverack, Jr...............................   42  Director
Joseph O' Donnell..................................   57  Director
Michael Schwartz...................................   34  Director
James F. Wade......................................   43  Director
</TABLE>


  Gerald T. Vento is the co-founder of TeleCorp and our predecessor company and
has been Chief Executive Officer and a director since our inception. He has been
Chairman of our Board since June 1999. From 1993 to 1995, Mr. Vento was Vice
Chairman and Chief Executive Officer of Sprint Spectrum(TM)/American PCS. Under
Mr. Vento's leadership, that partnership developed the first PCS network in the
United States. Mr. Vento also served as managing partner in a joint venture with
the Washington Post Company to build and operate the company's systems in the
United Kingdom prior to its sale in 1993 to TCI/US West Communications. Mr.
Vento has spent over twenty years in cable, telephone and wireless businesses.
Mr. Vento was the founder and Managing General Partner for several
communications companies, which he developed from inception, including wireless
and cable television properties throughout the United States and Puerto Rico.

  Thomas H. Sullivan has been Executive Vice President and a director of
TeleCorp since our inception, and Chief Financial Officer since March 1999. Mr.
Sullivan served as President of TeleCorp Holding from 1996 to 1998 and has
served as a senior executive and founder of several wireless and wireline
companies for the past five years. From 1992 to 1998, Mr. Sullivan was a partner
at McDermott, Will & Emery, where he served as co-head of its telecommunications
practice and co-chairman of its corporate finance practice. In 11 years at
McDermott, Will & Emery, he counseled several of the country's largest cellular
and PCS operators including Sprint Spectrum(TM)/American PCS, L.P., Aerial
Communications, NorthCoast Communications and Bell Atlantic Mobile in both
financial and operational matters. Mr. Sullivan has served in varying capacities
as consultant and/or senior advisor to several telecommunications start-ups. Mr.
Sullivan is a director of Affiliate License Co.

  Julie Dobson has served as TeleCorp's Chief Operating Officer since July 1998.
Prior to joining us, Ms. Dobson was President of Bell Atlantic Corporation
Mobile Systems(TM) New York/New Jersey Metro Region. She was responsible for
sales, marketing, customer service and the continued expansion of that company's
wireless communications network in the region. She also oversaw more than 1,500
employees and an extensive retail store network in 22 counties in New York and
northern and central New Jersey. Ms. Dobson had been with Bell Atlantic since
1980, when she began her career as an account executive in sales at Bell
Atlantic-Pennsylvania, and has served in a variety of positions in sales, sales
management and marketing over two decades.

  Michael R. Hannon has been a director of TeleCorp since July 1998. Mr. Hannon
is a General Partner of Chase Capital Partners, a general partnership with
approximately $7 billion under management and one of our equity investors. Chase
Capital Partners invests in a wide variety of domestic and international private
equity opportunities including management buyouts, growth equity and venture
capital situations. Chase Capital Partners' sole limited partner is The Chase
Manhattan Corporation, one of the largest bank holding companies in the United
States with assets totaling over US $300 billion. Mr. Hannon is currently a
director of Formus Communications, Entertainment Communications and Financial
Equity Partners.

  Scott Anderson has served as a director of TeleCorp since July 1998. Since
1997, Mr. Anderson has served as Principal in Cedar Grove Partners, an
investment and consulting/advisory partnership, and since 1998, as Principal in
Cedar Grove Investments, a small "angel" capital investment fund. Mr. Anderson
was an independent board member of PriCellular Corp from March 1997 through June
1998, when the company went private. He is a board member and advisory board
member of Tegic, a

                                      -56-
<PAGE>

wireless technology licensing company, a board member of Tritel Communications,
a board member of Triton PCS and a board member of Xypoint, a private E-911
service company. He was employed by McCaw Cellular Communications and AT&T from
1986 until 1997, where he last served as Senior Vice President of the
Acquisitions and Development group.

  Rohit M. Desai has served as a director of TeleCorp since January 1998. He has
been the Chairman, President and Chief Investment Officer of Desai Capital
Management Incorporated, an equity investment firm with approximately $1 billion
under management, since 1984. Desai Capital Management is the investment advisor
to Equity-Linked Investors II and Private Equity Investors III, L.P., of which
Mr. Desai is the managing general partner. Desai Capital Management invests in a
variety of industries, including the media and telecommunications sectors. Mr.
Desai currently sits on the board of The Rouse Company, a developer and owner of
regional shopping centers and urban specialty retailing properties; Sunglass Hut
International, a specialty retailer of sunglasses and watch stations in over
2,000 locations in the United States, United Kingdom, Australia and various
other countries; Finlay Fine Jewelry Holdings, a retailer of fine jewelry in
approximately 1,000 department stores in the United States, United Kingdom and
France; and Independence Community Bankcorp, with headquarters in Brooklyn, New
York. He is also a director of various other private companies including
American Horizon and Penn National.

  Gary Fuqua has served as a director of TeleCorp since July 1998. Mr. Fuqua has
managed corporate development activities at Entergy since 1998. In addition, Mr.
Fuqua oversees Entergy's non-regulated domestic retail businesses, including
District Energy, Entergy Security and Entergy's various telecommunications
businesses. Before he joined Entergy, Mr. Fuqua served as a Vice President with
Enron Ventures Corporation in London. He also founded and managed his own
company prior to joining Enron in 1988. He is a member of Entergy Enterprises'
board, and President of Entergy Technology Holdings. Mr. Fuqua is also a member
of the board of Tritel Communications.

  James M. Hoak, Jr., has served as a director of TeleCorp since July 1998. Mr.
Hoak has served as Chairman and a Principal of Hoak Capital Corporation, a
private equity investment firm, since September 1991. He has also served as
Chairman of HBW Holdings, an investment bank, since July 1996. He served as
Chairman of Heritage Media Corporation, a broadcasting and marketing services
firm, from its inception in August 1987 to its sale in August 1997. From
February 1991 to January 1995, he served as Chairman and Chief Executive Officer
of Crown Media, a cable television company. From 1971 to 1987, he served as
President and Chief Executive Officer of Heritage Communications, a diversified
communications company, and as its Chairman and Chief Executive Officer from
August 1987 to December 1990. He is also a director of PanAmSat Corporation;
Pier1 Imports; an d Texas Industries.

  Mary Hawkins Key has served as a director of TeleCorp since March 1999. She is
Senior Vice President of Partnership Operations for AT&T. Partnership operations
include AT&T's proportionate interests in active 850 MHz cellular markets (such
as Bay Area Cellular Telephone), strategic alliances such as Rogers Cantel, and
AT&T's equity participation in affiliated new PCS businesses which are members
of the AT&T Wireless Network. Ms. Hawkins Key heads the multi-disciplinary team
which provides guidance, consulting and assistance to partnership operations in
virtually every area of the business. Ms. Hawkins Key joined AT&T's Messaging
Division in 1995, and subsequently became Chief Operating Officer for the 1100
employee division. While in this role, Ms. Hawkins Key served as business leader
of the team responsible for spinning off the Messaging business unit. Ms.
Hawkins Key is on the board of Triton PCS and is a partner committee member for
CMT Partners, the partnership which owns the Bay Area Cellular Telephone and
Kansas City Cellular Telephone companies.

  William Kussell has served as a director of TeleCorp since July 1998. Mr.
Kussell has served as President of Dunkin' Donuts marketing office since 1996,
as well as Retail Concept Officer for Allied Domecq Retailing USA since 1997. In
this role, Mr. Kussell leads the overall strategy for Dunkin' Donuts as well as
oversees the development of the Baskin Robbins Brand. Mr. Kussell has over 13
years of brand building marketing experience within several industries, ranging
from food to photography. He was Vice President of worldwide marketing for
Reebok where he helped build Reebok's worldwide brand image and led the entry
into the home fitness video and programming business.

  William Laverack, Jr. has served as a director of TeleCorp since January 1998.
He has been a General Partner of J.H. Whitney, an investment firm focused on
private equity and mezzanine capital investments, since May 1993. J.H. Whitney
manages approximately $1 billion of capital and invests in several industry
areas including communications. Prior to J.H. Whitney, he was with Gleacher &
Co., Morgan Stanley, and J.P. Morgan. He is currently a director of Steel
Dynamics, and several private companies including NBX, PRAECIS Pharmaceuticals,
NeuroMetrix, Ariat International, and Qualitech Steel. Mr. Laverack is a
graduate of Harvard College, B.A., and Harvard Business School, M.B.A.

  Joseph O'Donnell has served as a director of TeleCorp since July 1998. He is
the former Chairman and Chief Executive Officer of two major advertising
agencies: J. Walter Thompson Company Worldwide and Campbell-Mithum-Esty
Advertising. In his twenty-five year career in the advertising business, he has
had experience with the automotive, financial services, telecommunications and
retail industries. Since leaving the agency business in 1991, Mr. O'Donnell has
founded several

                                      -57-
<PAGE>

marketing and/or communication related businesses, principally Osgood, O'Donnell
& Walsh LLC, a communications consulting company serving such companies as
Equitable Insurance, Chase Manhattan Bank, PricewaterhouseCoopers, Ford and
Teligent. Mr. O'Donnell also sits on the board of Unique Casual Restaurants.

  Michael Schwartz has served as a director of TeleCorp since November 1998. Mr.
Schwartz joined AT&T in September of 1996. He is currently a Vice President in
AT&T's Acquisitions and Development group. From September 1996 through September
1998, Mr. Schwartz was Vice President and Chief Counsel of AT&T's Messaging
Division. Prior to joining AT&T, Mr. Schwartz was in private practice in the
Seattle office of Graham & James. Mr. Schwartz holds a B.A., magna cum laude, in
physics and a J.D., magna cum laude, from Harvard University.

  James F. Wade has served as a director of TeleCorp since July 1998. He is
currently the Managing Partner of M/C Venture Partners, a $250 million private
equity fund and has been a General Partner in a series of predecessor funds
since 1987. M/C Venture Partners invests solely in the telecommunications and
information technology sectors. Mr. Wade's investments have included several
wireless telephony commitments throughout North America. Mr. Wade has been
responsible for developing the firm's involvement in the telecommunications
sectors, including cellular telephony, ESMR, PCS, CAPs, CLECs, domestic and
international paging, and LMDS. Mr. Wade has been working with the management of
TeleCorp and TeleCorp Holding since 1995 and is on the board of six other
private companies. Mr. Wade graduated from the University of Notre Dame in 1978
with a B.B.A. in Finance and received an M.B.A. from Harvard Business School in
1982.

Compensation of Directors

  It is not anticipated that the cash equity investors who are members of our
Board or any committee of our Board will receive cash compensation for their
service on our Board. Other non-employee members of our Board or its committees
receive a quarterly stipend of $1,875, $1,000 for attending each Board or
committee meeting and $500 for participating in each teleconference. It is
anticipated that these directors may also receive stock options. All members of
our Board or any committee of our Board, including members who are our
employees, will be reimbursed for out-of-pocket expenses in connection with
attendance at meetings.

Committees of the Board of Directors

  Our bylaws, as amended, provide that our Board may establish committees to
exercise certain powers delegated by our Board. Under that authority, our Board
has established an executive committee, an audit committee and a compensation
committee.

Executive Compensation

  The following table contains information about the cash and other compensation
that we paid in the 1998 fiscal year to Mr. Vento, our Chief Executive Officer,
and the four other most highly paid executive officers:

                           Summary Compensation Table

<TABLE>
<CAPTION>
                                                                                       Long-Term Compensation
                                                                                      -------------------------
                                                  Annual Compensation                         Awards
                                        -------------------------------------------   -------------------------
                                                                      Other Annual
                                                                      Compensation       Restricted Stock
Name and Principal Position          Salary($)       Bonus($)(a)         ($)(b)             Awards($)
- ---------------------------------------------------------------------------------------------------------------

<S>                                  <C>             <C>               <C>                <C>
Gerald T. Vento                      $213,461(c)     $157,500(d)        $5,994(e)            $0
  Chief Executive Officer
  and Chairman

Thomas H. Sullivan                    206,931(f)      125,000(g)       106,637(h)            0
  Executive Vice President and
  Chief Financial Officer

Julie Dobson                          114,423(i)      155,000           66,134(j)         127,238(k)
  Vice President and Chief
  Operating Officer

Robert Dowski(l)                      181,196(m)      101,251(n)         5,514(o)          40,640(p)
  Chief Financial Officer

Steven Chandler                       118,808(q)       45,000(r)       114,475(s)          14,541(t)
  General Manager
</TABLE>
  ______________________________

                                      -58-
<PAGE>

  (a)  Our employees are eligible for annual cash bonuses.  Such bonuses are
generally earned in the year prior to which they are paid based upon achievement
of corporate and individual performance objectives; however certain bonuses are
specified in employment agreements.  The bonuses earned in 1997 were paid in
1998 and are not included in this table.  The bonuses in the table were earned
in 1998 and were paid in 1999.

  (b)  Consists of amounts reimbursed for relocation expenses and any taxes that
we paid on behalf of the executive for such reimbursement.

  (c)  This amount consists of $111,538 that TeleCorp Management paid to Mr.
Vento out of amounts we paid to TeleCorp Management under the Management
Agreement and $101,923 that TeleCorp Holding paid to Mr. Vento.

  (d)  This amount does not include $62,500 in bonus that TeleCorp Holding paid
to Mr. Vento in 1998 earned in 1997.

  (e)  This amount consists of $5,994 that we paid on behalf of Mr. Vento into
our 401(k) plan.

  (f)  This amount consists of $92,947 that TeleCorp Management paid to Mr.
Sullivan out of amounts we paid to TeleCorp Management under the Management
Agreement and $113,984 that TeleCorp Holding paid to Mr. Sullivan.

  (g)  This amount does not include $51,500 that TeleCorp Holding paid to Mr.
Sullivan in 1998 earned in 1997.

  (h)  This amount consists of $103,637 in relocation expenses that TeleCorp
Management paid to Mr. Sullivan out of amounts that we paid to TeleCorp
Management under the Management Agreement and $3,000 that we paid on behalf of
Mr. Sullivan in our 401(k) plan.

  (i)  This amount consists of $114,423 that TeleCorp Communications paid to Ms.
Dobson.

  (j)  This amount consists of $66,134 in relocation expenses that TeleCorp
Communications paid to Ms. Dobson.

  (k)  Consists of 2,287.21 shares of Series E Preferred Stock, valued at $52
per share, and 3,459.45 shares of Class A Common Stock, valued at $2.40 per
share, issued under our Restricted Stock Grant Plan on July 16, 1998.

  (l) Mr. Dowski ceased to be employed with us as of March 8, 1999, except for
certain transition support.

  (m)  This amount consists of $72,692 that TeleCorp Holding paid to Mr. Dowski
and $108,504 that TeleCorp Communications paid to Mr. Dowski.

  (n)  This amount does not include $9,803 that TeleCorp Holding paid to Mr.
Dowski in 1998 earned in 1997.

  (o)  This amount consists of $5,514 that we paid on behalf of Mr. Dowski into
our 401(k) plan.

  (p)  Consists of 714.340 shares of Series E Preferred Stock, valued at $52 per
share, and 1,455.910 shares of Class A Common Stock, valued at $2.40 per share,
issued under our Restricted Stock Grant Plan on July 16, 1998.  On March 8,
1999, we repurchased 577.392 of Mr. Dowski's shares of Series E Preferred Stock
and 1,316.462 of Mr. Dowski's shares of Class A Common Stock for a total of
approximately $19, which is not reflected in the table.

  (q)  This amount consists of $54,519 that TeleCorp Holding paid to Mr.
Chandler and $64,288 that TeleCorp Communications paid to Mr. Chandler.

  (r)  This amount does not include $7,228 that TeleCorp Holding paid to Mr.
Chandler in 1998 earned in 1997 or $6,000 that TeleCorp Communications paid to
Mr. Chandler in 1998 earned in 1997.

  (s)  This amount consists of $111,995 in relocation expenses that TeleCorp
Communications paid to Mr. Chandler and $2,480 that we paid on behalf of Mr.
Chandler into our 401(k) plan.

  (t)  Consists of 255.59 shares of Series E Preferred Stock and 520.92 shares
of Class A Common Stock issued under our Restricted Stock Grant Plan on July 16,
1998.

Restricted Stock Grant Plan

  We established the TeleCorp PCS, Inc. 1998 Restricted Stock Plan to award key
employees shares of our Series E Preferred Stock and Class A Common Stock. Each
award is subject to a five- or six-year vesting schedule that depends on such
employee's date of hire, with unvested shares being redeemed by us for $0.01 per
share upon termination of employment. The shares granted are subject to the same
transfer restrictions and repurchase rights as our shares held by AT&T and other
investors. See "Description of Capital Stock." As of March 31, 1999, 5,930
shares of Series E Preferred Stock and 10,322 shares of Class A Common Stock are
outstanding under this plan. We repurchased an additional 1,155 shares of Series
E Preferred Stock and 2,633 shares of Class A Common Stock from certain
stockholders, which we had granted under this plan, and such repurchased shares
are again available for grant under this plan. We intend to establish a non-
qualified stock option plan for key employees and directors.

                                      -59-
<PAGE>

Management Agreement

  Under to the Management Agreement, TeleCorp Management, under our oversight,
review and ultimate control and approval, assists us with:  administrative
services, such as accounting, payment of all bills and collection; operational
services, such as engineering, maintenance and construction; marketing services,
such as sales, advertising and promotion; regulatory services, such as tax
compliance, FCC applications and regulatory filings; and general business
services, such as supervising employees, budgeting and negotiating contracts.
Mr. Vento and Mr. Sullivan own TeleCorp Management.

  TeleCorp Management has agreed to provide the services of Mr. Vento and Mr.
Sullivan in connection with the performance of TeleCorp Management's obligations
under the Management Agreement. Mr. Vento and Mr. Sullivan have agreed to devote
their entire business time and attention to providing such services, provided
that they may devote reasonable periods of time to certain enumerated
activities.

  We reimburse TeleCorp Management for all out of pocket expenses it incurs for
the retention of third parties on our behalf. We pay TeleCorp management fees of
$550,000 per year, payable in monthly installments. The compensation we pay to
TeleCorp Management also includes the potential for payments of bonuses. In
1998, we paid bonuses totaling approximately $285,000 to TeleCorp Management.

  The Management Agreement has a five-year term. We may terminate the Management
Agreement immediately in the event of certain circumstances including (1)
indictment of Mr. Vento or Mr. Sullivan for a felony, (2) a material breach
which remains uncured after 30 days' written notice or (3) acceleration of any
of our indebtedness over $25.0 million. TeleCorp Management may terminate the
agreement voluntarily upon 30 days written notice to us.

  During the term of the Management Agreement, and under limited circumstances
for a period following termination, TeleCorp Management, Mr. Vento and Mr.
Sullivan are prohibited from assisting or becoming associated with any person or
entity, other than as a holder of up to 5% of the outstanding voting shares of
any publicly traded company, that is actively engaged in the business of
providing mobile wireless communications services in our territory, and from
employing any person who was employed by us unless that person was not employed
by us for a period of at least six months.

  In addition, the Management Agreement provides for repurchase by us of the
shares of our stock which Mr. Vento and Mr. Sullivan own, under certain
circumstances.

Employee Agreements

  On July 17, 1998, we entered into an employee agreement with Ms. Dobson, under
which she serves as our Chief Operating Officer at a base annual salary of
$250,000.

  Ms. Dobson is eligible under such employee agreement, at our Board's
discretion, to receive an annual bonus in an amount up to 50% of her base annual
salary.

  On July 17, 1998, we entered into an employee agreement with Mr. Chandler,
under which he serves as our General Manager at a base annual salary of
$145,000.

  Mr. Chandler is eligible under such employee agreement, at our Board's
discretion, to receive an annual bonus in an amount up to 30% of his base annual
salary.

  Both Ms. Dobson's and Mr. Chandler's employee agreements provide that they are
employees-at-will.  We will reimburse the reasonable expenses that the
executives incur while performing their services under the employee agreements
and the executives may participate in our employee benefit plans available to
employees of comparable status and position.

  If an executive should die, we will pay any amounts that we owe such executive
under the employee agreements accrued prior to such death to such executive's
estate, heirs and beneficiaries.  All family medical benefits under the employee
agreements for the benefit of such executive will continue for six months after
such death.  Termination for cause is:

     .  engaging in misconduct which has caused demonstrable and serious injury,
        financial or otherwise, to us or our reputation;

     .  being convicted of a felony or misdemeanor as evidenced by a judgment,
        order or decree of a court of competent jurisdiction;

                                      -60-
<PAGE>

     .  failing to comply with our Board's directions, or neglecting or refusing
        to perform such executive's duties or responsibilities, unless changed
        significantly without such executive's consent; or

     .  violating the employee agreement or Restricted Stock Grant Plan.

If we terminate an executive for cause, or an executive voluntarily quits, we
will pay such executive any amounts that we owe such executive accrued prior to
such cessation of employment.  If we terminate an executive other than for
cause, we will pay such executive an amount equal to such executive's then
annual base salary, at normal payroll intervals, as well as continue to cover
such executive under our employee benefit plans for 12 months.

  Under the employee agreements, the executives are subject to confidentiality
provisions, and have agreed, for one year after cessation of employment with us,
to non-competition and non-solicitation provisions and to limit public
statements concerning us.

Separation Agreement

  On March 8, 1999, we entered into a separation agreement with Mr. Dowski.
Under such separation agreement, we agreed to pay Mr. Dowski:

     .  $17,500 per month for 12 months;

     .  a lump sum of $105,000, representing a 1998 bonus;

     .  a lump sum equal to earned but unpaid or unused vacation;

     .  $4,300 as reimbursement for relocation expenses, including taxes payable
        by Mr. Dowski on such sum; and

     .  a lump sum equal to outstanding travel and expense reimbursement.

We also agreed to continue covering Mr. Dowski under our employee benefit plans
for 12 months. We will continue to pay a duplicate housing relocation benefit to
Mr. Dowski through July 1999.

  In addition, we repurchased 577.392 shares of Mr. Dowski's Series E Preferred
Stock and 1,316.462 of Mr. Dowski's shares of Class A Common Stock for
approximately $19 in accordance with his share grant agreement concerning such
restricted stock.

  The separation agreement contained mutual releases by Mr. Dowski and us of the
other.  In addition, in such separation agreement, Mr. Dowski confirmed his
confidentiality agreements with us, and his one-year non-competition, non-
solicitation and limitation on public speaking agreements.

                                      -61-
<PAGE>

        SECURITIES OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

  The following table sets forth, as of March 31, 1999, on a pro forma basis,
after giving effect to the Transactions, the number of shares of each class of
our voting stock beneficially owned by (a) each of our directors, (b) certain of
our key executive officers, (c) each person known by us to beneficially own more
than 5% of the outstanding shares of any class of our voting capital stock at
such date and (d) all of our directors and executive officers of as a group (30
persons). As of such date, after giving pro forma effect to the Transactions,
there were 97,473 shares of Series A Preferred Stock, 210,608 shares of Series C
Preferred Stock, 49,417 shares of Series D Preferred Stock, 24,150 shares of
Series E Preferred Stock, 48,261 shares of Series F Preferred Stock, 236,824
shares of Class A Common Stock, 919 shares of Class C Common Stock, 2,755 shares
of Class D Common Stock and 10 shares of Voting Preference Stock, of TeleCorp
outstanding. See "Description of Capital Stock." Except as otherwise indicated,
the address for each stockholder is c/o TeleCorp, 1010 N. Glebe Road, Suite 800,
Arlington, Virginia 22201.


<TABLE>
<CAPTION>
                                                                             Class A                  Voting Preference
                                                                       Common Stock (a) (b)          Common Stock (a) (b)
                                                                    ---------------------------   --------------------------
                                                                     Number of      Percentage     Number of     Percentage of
Stockholder                                                           Shares         of Class       Shares           Class
- -----------                                                         ------------   ------------   ------------   ------------
<S>                                                                 <C>            <C>            <C>            <C>
CB Capital Investors, L.P. (c)...............................         46,321            19.56%         0              0%
Equity-Linked Investors -II (d)..............................         44,037            18.59          0              0
Hoak Communications Partners, L.P. (e).......................         33,027            13.95          0              0
Whitney Equity Partners. L.P. (f)............................         27,521            11.62          0              0
Entergy Technology Holding Company (g).......................         14,872             6.28          0              0
Media/Communications Partners (h)............................         17,658             7.46          0              0
AT&T Wireless PCS, Inc. (i)..................................         48,261            16.93          0              0
TWR Cellular, Inc. (i).......................................         48,261            16.93          0              0
Gerald T. Vento (j)..........................................         14,478             6.11          5             50
Thomas H. Sullivan (k).......................................          8,825             3.73          5             50
Michael R. Hannon (l)........................................              0                0          0              0
Rohit M. Desai (m)...........................................         44,037            18.59          0              0
James M. Hoak (n)............................................         33,027            13.95          0              0
William Laverack, Jr. (o)....................................         27,521            11.62          0              0
Gary Fuqua (p)...............................................         14,872             6.28          0              0
James F. Wade (q)............................................         17,658             7.46          0              0
Scott Anderson...............................................              0                0          0              0
William Kussel...............................................              0                0          0              0
Joseph O'Donnell.............................................              0                0          0              0
Michael Schwartz (i).........................................         48,261            16.93          0              0
Mary Hawkins Key (i).........................................         48,261            16.93          0              0
Julie Dobson.................................................          3,459             1.46          0              0
Robert Dowski................................................            139             *             0              0
Steven Chandler..............................................            521             *             0              0
All directors and executive officers as a group (30
persons) (r).................................................        218,674            76.70
</TABLE>

- ---------------
* Less than one percent.

(a) In accordance with Rule 13d-3 under the Securities Exchange Act of 1934, as
    amended, for purposes of this table, a person is deemed to be the beneficial
    owner of any shares of Common Stock if such person has or shares voting
    power or investment power with respect to such Common Stock, or has the
    right to acquire beneficial ownership at any time within 60 days of the date
    of the table. As used here, "voting power" is the power to vote or direct
    the voting of shares and "investment power" is the power to dispose or
    direct the disposition of shares.

(b) Under the terms of our restated certificate of incorporation, until the
    occurrence of certain events, and subject to specific rights granted to
    holders of other classes of our capital stock, the holders of Voting
    Preference Common Stock possess 50.1% of the voting power of all shares of
    our capital stock, and the holders of Class A Common Stock possess 49.9% of
    the voting power of all shares of our capital stock. If, under circumstances
    described under "Description of Capital Stock," we receive FCC approval for
    the Class A Common Stock and Voting Preference Common Stock to vote as a
    single class, the Class A Common Stock and the Voting Preference Common
    Stock will vote as a single class on all matters and be granted one vote per
    outstanding share. Holders of certain other classes of our capital stock
    have been granted voting rights regarding matters specifically affecting
    those classes. Finally, so long as AT&T continues to own not less than two-
    thirds of the shares of Series A Preferred Stock it owned on July 16, 1998,
    it will have the right to nominate two members of our Board (or one member
    following certain events). See "Description of Capital Stock."

                                      -62-
<PAGE>

(c) Includes shares held by TeleCorp Investment Corp., LLC. Does not include 91
    shares of Class C Common Stock or 596 shares of Class D Common Stock held by
    such stockholders. Such shares, under certain circumstances, are convertible
    into shares of Class A Common Stock. See "Description of Capital Stock."
    Such shares may also be deemed to be beneficially owned by Mr. Hannon.  Mr.
    Hannon disclaims beneficial ownership of all such shares. The address of the
    stockholders is 380 Madison Avenue, 12/th/ Floor, New York, New York 10017.

(d) Includes shares held by Private Equity Investors III, L.P. Does not include
    87 shares of Class C Common Stock or 572 shares of Class D Common Stock held
    by such stockholders. Such shares, under certain circumstances, are
    convertible into shares of Class A Common Stock. See "Description of Capital
    Stock." Such shares may also be deemed to be beneficially owned by Mr.
    Desai. Mr. Desai disclaims beneficial ownership of all such shares. The
    address of the stockholders is 540 Madison Avenue, 36/th/ Floor, New York,
    New York 10022.

(e) Includes shares held by HCP Capital Fund, L.P. Does not include 65 shares of
    Class C Common Stock or 429 shares of Class D Common Stock held by such
    stockholders. Such shares, under certain circumstances, are convertible into
    shares of Class A Common Stock. See "Description of Capital Stock." Such
    shares may also be deemed to be beneficially owned by Mr. Hoak. The address
    of the stockholders is One Galleria Tower, 13355 Noel Road, Suite 1050,
    Dallas, Texas 75240.

(f) Includes shares held by J.H. Whitney III, L.P. and Whitney Strategic
    Partners III, L.P. Does not include 54 shares of Class C Common Stock or 357
    shares of Class D Common Stock held by such stockholders. Such shares, under
    certain circumstances, are convertible into shares of Class A Common Stock.
    See "Description of Capital Stock." Such shares may also be deemed to be
    beneficially owned by Mr. Laverack. The address of the stockholders is 177
    Broad Street, 15/th/ Floor, Stamford, Connecticut 06901.

(g) Such shares may also be deemed to be beneficially owned by Mr. Fuqua and
    Entergy Corporation. Does not include 344 shares of Class D Common Stock
    held by the stockholder. Such shares, under certain circumstances, are
    convertible into shares of Class A Common Stock. See "Description of Capital
    Stock." The address of the stockholder is Three Financial Centre, 900 South
    Shackleford Road, Suite 210, Little Rock, Arkansas 72211.

(h) Consists of shares held by Media/Communications Partners III Limited
    Partnership and Media/Communications Investors Limited Partnership. Does not
    include 35 shares of Class C Common Stock or 227 shares of Class D Common
    Stock held by such stockholders. Such shares, under certain circumstances,
    are convertible into shares of Class A Common Stock. See "Description of
    Capital Stock." Such shares may also be deemed to be beneficially owned by
    Mr. Wade. The address of the stockholders is 75 State Street, Suite 2500,
    Boston, Massachusetts 02109.

(i) Consists of 25,324.95 shares of Series F Preferred Stock held by AT&T
    Wireless PCS, 18,036.46 shares of Series F Preferred Stock held by TWR and
    4,900 shares of Series F Preferred Stock issuable to AT&T Wireless PCS in
    connection with the Viper Wireless transaction. Such shares may also be
    deemed to be held by Mr. Schwartz, Ms. Hawkins Key and various AT&T
    affiliates. Mr. Schwartz and Ms. Hawkins Key disclaim beneficial ownership
    of all such shares. The address of the stockholders is c/o AT&T Wireless
    PCS, Inc., 7277 164th Avenue, N.E., Redmond, Washington 98052.

(j) Does not include 341 shares of Class C Common Stock or 9 shares of Class D
    Common Stock held by such stockholder. Such shares, under certain
    circumstances, are convertible into shares of Class A Common Stock. See
    "Description of Capital Stock."

(k) Does not include 212 shares of Class C Common Stock or 2 shares of Class D
    Common Stock held by such stockholder. Such shares, under certain
    circumstances, are convertible into shares of Class A Common Stock. See
    "Description of Capital Stock."

(l) Does not include shares of our capital stock owned by CB Capital Investors,
    L.P. and TeleCorp Investment Corp., LLC, of which Mr. Hannon disclaims
    beneficial ownership. Mr. Hannon serves as Vice President of CB Capital
    Investors, L.P. Does not include 91 shares of Class C Common Stock or 596
    shares of Class D Common Stock held by such stockholders. Such shares, under
    certain circumstances, are convertible into shares of Class A Common Stock.
    See "Description of Capital Stock." Mr. Hannon disclaims beneficial
    ownership of all of such shares. The address of the stockholder is c/o CB
    Capital Investors, L.P., 380 Madison Avenue, 12/th/ Floor, New York, New
    York 10017.

(m) Consists of shares owned by Equity-Linked Investors-II and Private Equity
    Investors III, L.P. Mr. Desai serves as managing general partner of each of
    such stockholders. Does not include 87 shares of Class C Common Stock or 572
    shares of Class D Common Stock held by such stockholders. Such shares, under
    certain circumstances, are convertible into shares of Class A Common Stock.
    See "Description of Capital Stock." Mr. Desai disclaims beneficial ownership
    of all such shares. The address of such stockholder is 540 Madison Avenue,
    36th Floor, New York, New York 10022.

(n) Consists of shares owned by Hoak Communications Partners, L.P. and HCP
    Capital Fund, L.P. Mr. Hoak serves as Principal and Chairman of the manager
    of such stockholders, shareholder of the manager and General Partner of Hoak
    Communications Partners, L.P. and limited partner and shareholder of the
    General Partner of HCP Capital Fund, L.P. Does not include 65 shares of
    Class C Common Stock or 429 shares of Class D Common Stock held by such
    stockholders. Such shares, under certain circumstances, are convertible into
    shares of Class A Common Stock. See "Description of Capital Stock." The
    address of such stockholders is c/o Hoak Communications Partners, L.P., One
    Galleria Tower, 13355 Noel Road, Suite 1050, Dallas, Texas 75240.

(o) Consists of shares owned by Whitney Equity Partners, L.P., J.H. Whitney III,
    L.P. and Whitney Strategic Partners III, L.P. Mr. Laverack serves as
    Managing Member of J.H. Whitney Equity Partners, L.L.C., which is a General
    Partner in Whitney Equity Partners, L.P., Managing Member of J.H. Whitney
    Equity Partners III, L.L.C. which is a General Partner in J.H. Whitney III,
    L.P. and Whitney Strategic Partners III, L.P. Does not include 54 shares of
    Class C Common Stock or 357 shares of Class D Common Stock held by such
    stockholders. Such shares, under certain circumstances, are convertible into
    shares of Class A Common Stock. See "Description of Capital Stock." The
    address of such stockholders is c/o Whitney Equity Partners, L.P., 177 Broad
    Street, 15th Floor, Stamford, Connecticut 06901.

(p) Consists of shares owned by Entergy Technology Holding Company. Mr. Fuqua
    serves as an officer of the corporate parent of such stockholder. Does not
    include 344 shares of Class D Common Stock held by Entergy. Such shares,
    under certain circumstances, are convertible into shares of Class A Common
    Stock. See "Description of Capital Stock." The address of such stockholder
    is c/o Entergy Technology Holding Company, Three Financial Centre, 900
    Shackleford Road, Suite 210, Little Rock, Arkansas 72211.

(q) Consists of shares owned by Media/Communications Investors Limited
    Partnership and Media/Communications Partners III Limited Partnership. Mr.
    Wade serves as President of M/C Investor General Partner-J, Inc., which is a
    General Partner in Media Communications Investors Limited Partnerships and
    Manager of M/C III, L.L.C., which is a General Partner in Media
    Communications Partners III Limited Partnership. Does not include 35 shares
    of Class C Common Stock or 227 shares of Class D Common Stock held by such
    stockholders. Such shares, under certain circumstances, are convertible into
    shares of

                                      -63-
<PAGE>

    Class A Common Stock. See "Description of Capital Stock." The
    address of such stockholders is c/o Media/Communications Partners, 75 State
    Street, Suite 2500, Boston, Massachusetts 02109.

(r) Includes shares held by members of management and certain of our cash equity
    investors that may be deemed to be beneficially owned by certain members of
    our Board. Certain of such members of our Board disclaim such beneficial
    ownership. The 14 members of our senior management team hold approximately
    14% of our common stock.

                                      -64-
<PAGE>

                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

AT&T Agreements

  On January 23, 1998, we and AT&T announced the formation of a venture under
which we are financing, constructing and operating a wireless communications
network using the AT&T and SunCom brand names and logos together, giving equal
emphasis to both.  AT&T contributed licenses to us in exchange for an equity
interest in us. The venture provides the basis for a strategic alliance between
us and AT&T for the provision of wireless communications services in certain
markets. The terms of the venture and the strategic alliance are set forth in a
number of agreements, and summaries of these agreements are set forth below.
These summaries are not complete and are qualified in their entirety by
reference to the agreements. Copies of the agreements are attached as exhibits
to the registration statement.

Securities Purchase Agreement

  The Securities Purchase Agreement, dated as of January 23, 1998, as amended,
among AT&T Wireless PCS Inc., TWR Cellular, Inc., CB Capital Investors, Inc.,
Desai Associates, Hoak Capital Corporation, J.H. Whitney & Co., Entergy
Technology Holding Company, M/C Partners, One Liberty Fund III, L.P. and Toronto
Dominion Investments, Inc. and Northwood Capital Partners (the "Cash Equity
Investors"), the former stockholders of TeleCorp Holding (the "THC Stockholders"
and together with the Cash Equity Investors, AT&T Wireless PCS and TWR Cellular,
Inc., the "Purchasers"), Mr. Vento and Mr. Sullivan (the "Management
Stockholders") and us provided for the transfer by AT&T Wireless PCS and TWR
Cellular to us of certain PCS licenses providing, in the aggregate, the right to
use 20 MHz of authorized frequencies within the areas covered by such licenses
in exchange for shares of our Series A Preferred Stock, Series D Preferred Stock
and Series F Preferred Stock.

  The Securities Purchase Agreement also provides for the contribution by the
Cash Equity Investors of $128.0 million to us in exchange for shares of our
Series C Preferred Stock, Class A Voting Common Stock and Class C Common Stock.
In addition, the Securities Purchase Agreement provides that, upon the
consummation by us of an acquisition of F-Block PCS licenses covering one
million or more Pops (as defined in the Stockholders' Agreement described
below), the Cash Equity Investors will contribute an additional $5.0 million to
us in exchange for additional shares of our Series C Preferred Stock and Class A
Common Stock. Certain of the contributions to be made by the Cash Equity
Investors were made upon the consummation of the transactions contemplated by
the Securities Purchase Agreement, which occurred on July 17, 1998, and the
remainder of such contributions will be made over a three-year period. The
obligations of each of the Cash Equity Investors to make its remaining
contributions are (1) irrevocable and unconditional, and not subject to
counterclaim, set-off, deduction or defense, or to abatement, suspension,
deferment, diminution or reduction for any reason whatsoever, and (2) under a
pledge agreement between each such Cash Equity Investor and us, secured by a
pledge of all shares of our capital stock issued to such Cash Equity Investor
under the Securities Purchase Agreement. See "Management Discussion and Analysis
of Financial Condition and Results of Operations--Liquidity and Capital
Resources."

  Under the Securities Purchase Agreement, the THC Stockholders exchanged their
shares of stock in TeleCorp Holding for shares of our Series C Preferred Stock,
Class A Common Stock, Class C Common Stock and Class D Common Stock.

  Under the Securities Purchase Agreement, the Management Stockholders exchanged
their shares of stock in TeleCorp Holding for shares of our Series E Preferred
Stock, Class A Common Stock, Class C Common Stock and Class D Common Stock. Each
of the Management Stockholders received five shares of our Voting Preference
Stock in exchange for shares of stock we previously issued to them. Upon the
closing of the transactions contemplated by the Securities Purchase Agreement,
we also issued to certain other members of management shares of our Series E
Preferred Stock and Class A Common Stock. Up to 35.71% of the Class A Common
Stock issued to members of management are under our restricted stock plan.
Shares issued under the restricted stock plan are subject to forfeiture
according to a schedule if employment with us is terminated within six years
after the closing of the Securities Purchase Agreement.

Stockholders' Agreement

  General.   The Stockholders' Agreement, dated as of July 17, 1998, among AT&T
Wireless PCS, TWR Cellular, the Cash Equity Investors, the Management
Stockholders and us provides for certain arrangements regarding our management
and operations and for certain restrictions with respect to the sale, transfer
or other disposition of our capital stock.

  Board of Directors.   The Stockholders' Agreement provides that our Board
shall initially consist of 13 directors and that any action of our Board be
approved by the affirmative vote of a majority of our entire Board, except in
certain circumstances where voting by certain classes of directors is required.
The Stockholders' Agreement also provides that the members of our Board will
initially be (1) three individuals selected by the Cash Equity Investors who own
a majority of the Class A Common Stock, (2)

                                      -65-
<PAGE>

each of Mr. Vento and Mr. Sullivan, so long as each remains one of our officers
and the Management Agreement remains in effect, (3) two individuals selected by
AT&T Wireless PCS in its capacity as holder of the Series A Preferred Stock, so
long as AT&T Wireless PCS and TWR Cellular own in the aggregate at least two-
thirds of the number of shares of Series A Preferred Stock authorized on the
date of our restated certificate of incorporation, (4) three individuals
selected by the holders of the Voting Preference Stock, which three individuals
are reasonably acceptable to the Cash Equity Investors who own a majority of the
Class A Common Stock and (5) three individuals selected by the holders of the
Voting Preference Stock, which three individuals are reasonably acceptable to
the holders of a majority of the Class A Common Stock beneficially owned by the
Cash Equity Investors and AT&T Wireless PCS.

  Exclusivity.   The parties to the Stockholders' Agreement have agreed that,
during the term of the Stockholders' Agreement, neither they nor any of their
respective affiliates will provide or resell, or act as the agent for any person
offering, within the areas covered by our licenses, mobile wireless
communications services initiated or terminated using TDMA and frequencies
licensed by the FCC (collectively, "Company Communications Services"), except
that AT&T and its affiliates may (1) resell or act as agent for us in connection
with the provision of Company Communications Services, (2) provide or resell
wireless communications services to or from certain specific locations, provided
that any equipment sold in connection with such service must be capable of
providing Company Communication Services, and (3) resell Company Communications
Services for another person in any area where we have not placed a system into
commercial service. Additionally, with respect to certain markets identified in
the Intercarrier Roamer Services Agreement with AT&T Wireless Services, Inc.,
each of us and AT&T Wireless PCS has agreed to cause our respective affiliates
in their home carrier capacities to (1) program and direct the programming of
customer equipment so that the other party, in its capacity as the serving
carrier, is the preferred provider in such markets and (2) refrain from inducing
any of its customers to change such programming. AT&T Wireless PCS has retained
up to 10 MHz of authorized frequencies within the areas covered by our licenses
for which we have a right of negotiation in the event of a proposed transfer.

  We and the other parties amended the Stockholders' Agreement to terminate the
exclusivity provisions with regard to approximately 100,000 Pops that overlapped
with the coverage area of licenses AT&T purchased from Vanguard Cellular. We
have agreed with AT&T to exchange our licenses covering such Pops for licenses
covering other Pops. Such exchanged Pops will be covered under the scope of our
agreements with AT&T.

  Construction.   The Stockholders' Agreement establishes a minimum construction
plan for the construction of a PCS system in the areas covered by our licenses
(the "Minimum Construction Plan"), which requires us to deploy service to (1)
20% of the total 1990 population of the area covered by our licenses (the "Total
Population") by July 17, 1999 (focusing on designated areas of Memphis and New
Orleans), (2) 40% of the Total Population by July 17, 2000 (focusing on
designated areas of New England, Little Rock and Missouri and enhancing coverage
in all markets), (3) 55% of the Total Population by July 17, 2001 (focusing on
secondary cities and the important associated connecting highways), (4) 70% of
the Total Population by July 17, 2002 (continuing to expand the secondary cities
and enhancing coverage of the core areas) and (5) 75% of the Total Population by
July 17, 2003 (focusing on adding capacity sites and filling in the remaining
suburban areas). In addition to the Minimum Construction Plan, we are bound to
several other operational obligations, including arranging for all necessary
microwave relocation for our licenses and AT&T's retained licenses, ensuring
compatibility of our systems with the majority of systems in Louisiana,
Oklahoma, Minnesota, Illinois and Texas (excluding Houston), satisfying the FCC
construction requirements in the areas covered by our licenses and AT&T's
retained licenses, offering certain core service features with respect to our
systems, causing our systems to comply with AT&T's TDMA quality standards and
refraining from providing or reselling interexchange services other than
interexchange services that constitute Company Communications Services or that
are procured from AT&T. If we materially breach any of our operational
obligations or if AT&T Wireless PCS and its affiliates decide to adopt a new
technology standard, other than TDMA, in a majority of its markets and we
decline to adopt such new technology, AT&T Wireless PCS may terminate its
exclusivity obligations.

  Disqualifying Transaction.   In the event of a merger, consolidation, asset
acquisition or disposition or other business combination (a "Disqualifying
Transaction") involving (1) AT&T and (2) a person that (A) derives annual
revenues from communications businesses in excess of $5 billion, (B) derives
less than one-third of its aggregate revenues from the provision of wireless
communications and (C) owns FCC licenses to offer, and does offer, mobile
wireless communications services serving more than 25% of the residents, as
determined by Equifax Marketing Decision Systems Inc., within the areas covered
by our licenses (such person, the "Other Party"), AT&T, upon written notice, may
terminate certain of its exclusivity obligations in the portion of the areas
covered by our licenses in which the Other Party owns an FCC license to offer
CMRS (the "Overlap Territory"); provided, that, upon such termination, we have
the right to cause AT&T, TWR Cellular, or any transferee that acquired any
shares of Series A Preferred Stock, Series D Preferred Stock or Series F
Preferred Stock owned by AT&T Wireless PCS on the date of the Stockholders'
Agreement (and any shares of our common stock into which any such shares are
converted) to exchange all or a proportionate share (based upon the overlap of
the residents) of such stock into shares of Series B Preferred Stock. Once so
converted, we may redeem such shares of Series B Preferred Stock at any time in
accordance with our restated

                                      -66-
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certificate of incorporation. Currently, only Sprint, SBC Communications, Bell
Atlantic and BellSouth satisfy the criteria for a business combination partner.

  Under certain circumstances, during the period commencing on the date of the
announcement by AT&T of a Disqualifying Transaction and ending upon the later to
occur of six months following the consummation of such transaction and the date,
if any, by which AT&T is required under applicable law to dispose of any
cellular system or any PCS system serving any of the St. Louis, Missouri,
Louisville, Kentucky or Boston, Massachusetts BTAs (the "Subject Markets"), if
AT&T proposes to sell, transfer or assign to any person that is not an affiliate
of AT&T any PCS system owned and operated by AT&T Wireless PCS and its
affiliates in any Subject Market, then AT&T will provide us with the opportunity
to offer for sale jointly with AT&T for a 90-day period wireless communications
services in the applicable Subject Markets and the portion of the areas covered
by our licenses that are included in the MTA that includes such Subject Markets.

  Acquisition of Licenses.   The Stockholders' Agreement provides that we may
acquire any cellular license that our Board has determined is a demonstrably
superior alternative to constructing a PCS system within the applicable portion
of the areas covered by our licenses; provided, that: (1) a majority of the Pops
covered by such license are within the areas covered by our licenses; (2) AT&T
Wireless PCS and its affiliates do not own CMRS licenses in the area covered by
such license; and (3) our ownership of such license will not cause AT&T Wireless
PCS or any affiliate to be in breach of any law or contract.

  Vendor Discounts; Roaming Agreements.   AT&T Wireless PCS has agreed, under
the Stockholders' Agreement, that if requested by us, it will use all
commercially reasonable efforts (1) to assist us in obtaining discounts from any
AT&T Wireless PCS vendor with whom we are negotiating for the purchase of any
infrastructure equipment or billing services and (2) to enable us to become a
party to the roaming agreements between AT&T Wireless PCS and its affiliates and
operators of other cellular and PCS systems.

  Resale Agreements.  Under the Stockholders' Agreement, we, upon the request of
AT&T Wireless PCS, will enter into resale agreements relating to the areas
covered by our licenses. The rates, terms and conditions of service provided by
us are to be at least as favorable (and to the extent permitted by applicable
law, more favorable) to AT&T Wireless PCS, taken as a whole, as the rates, terms
and conditions provided by us to other customers.

  Subsidiaries.   The Stockholders' Agreement provides that all of our
subsidiaries must be direct or indirect wholly owned subsidiaries. The
Stockholders' Agreement also provides that, without the prior written consent
of, or right of first offer to, AT&T Wireless PCS, we and our subsidiaries,
subject to certain limited exceptions, may not effect any sale or disposition of
a substantial portion of our assets or any of our subsidiaries or the
liquidation, merger or consolidation of us or any of our subsidiaries until we
meet certain minimum construction requirements.

  Restrictions on Transfer.   The Stockholders' Agreement imposes certain
restrictions with respect to the sale, transfer or other disposition of our
capital stock, such as preemptive, drag along and tag along rights, and provides
certain demand and piggyback registration rights.

  Amendments.   Amendments to the Stockholders' Agreement require the written
consent of holders of (1) a majority of the shares of the Class A Common Stock,
including AT&T Wireless PCS, (2) two-thirds of the Class A Common Stock
beneficially owned by the Cash Equity Investors and (3) two-thirds of the Class
A Common Stock beneficially owned by the Management Stockholders.

  Termination.   The Stockholders' Agreement will terminate upon the earliest to
occur of (1) the receipt of the written consent of each such party, (2) July 17,
2009 and (3) under certain circumstances, the date on which a single stockholder
beneficially owns all of the outstanding shares of Class A Common Stock.

Network Membership License Agreement

  Under the Network Membership License Agreement dated as of July 17, 1998 (the
"License Agreement") between AT&T and us, AT&T granted to us a royalty-free,
non-transferable, non-sublicensable, non-exclusive, limited right and license to
use certain licensed marks, including the logo containing the AT&T name and
globe design, the expression "Member, AT&T Wireless Services Network" and AT&T
colors, graphics and overall configurations (collectively, the "Licensed
Marks"), solely in connection with certain licensed activities (the "Licensed
Activities"). The Licensed Activities include (1) the provision to end-users and
resellers, solely within the areas covered by our licenses, of Company
Communications Services on frequencies licensed to us for CMRS provided in
accordance with the agreements between us and AT&T (collectively, the "Licensed
Services") and (2) marketing and offering the Licensed Services within the areas
covered by our licenses with limited advertising

                                      -67-
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outside our licensed area. The License Agreement also grants to us the right and
license to use Licensed Marks on specified mobile phones distributed to our end-
users.

  Except in certain instances, AT&T has agreed not to grant to any other person
a right or license to provide or resell, or act as agent for any person
offering, Company Communications Services under the Licensed Marks. AT&T retains
all rights of ownership in the Licensed Marks, including the rights to license
or transfer, as well as the right to use the Licensed Marks in providing its
services (subject to its exclusivity obligations) in both the areas covered by
our licenses and all other areas.

  The License Agreement contains restrictions with respect to the use and
modification of any of the Licensed Marks. Although we may develop our own
marks, we may not use them together with the Licensed Marks without the prior
approval of AT&T. Furthermore, we are obligated to use commercially reasonable
efforts to cause all Licensed Services marketed and provided using the Licensed
Marks to be of comparable quality to similar services marketed and provided by
AT&T in areas that are comparable to the areas covered by our licenses, taking
into account, among other things, the relative stage of development of the areas
in which such services are being provided. The License Agreement also sets forth
specific testing procedures to determine compliance with these standards and
affords us with a grace period to cure any instances of noncompliance.
Following the core period, we must cease using the Licensed Marks until we are
in compliance with the standards or may be deemed to be in breach of the License
Agreement.

  We may not assign, sublicense or transfer, by change of control or otherwise,
any of our rights under the License Agreement; provided, however, that the
License Agreement may be, and has been, assigned to our lenders under our senior
credit facilities, and after the expiration of any applicable grace and cure
periods under our senior credit facilities, such lenders may enforce our rights
under the License Agreement and assign the License Agreement to any person with
AT&T's consent.

  The initial term of the License Agreement is for a period of five years (the
"Initial Term"), which will be automatically renewed for an additional five-year
period if each party gives written notice to the other party of our election to
renew the term of the License Agreement and neither party gives a notice of non-
renewal. The License Agreement may be terminated by AT&T at any time in the
event of a significant breach by us, including our misuse of any Licensed Marks,
our licensing or assignment of any of our rights under the License Agreement,
except as permitted by the terms of the License Agreement, our loss of the
licenses acquired from AT&T, our failure to maintain AT&T's quality standards or
a change in control of us. After the initial term, AT&T may also terminate the
License Agreement in certain circumstances in connection with a Disqualifying
Transaction.

  Upon closing of the Digital PCS acquisition, the License Agreement was
automatically amended to include the Baton Rouge, Houma, Hammond and Lafayette,
Louisiana BTAs under its scope.  Upon closing of the Puerto Rico acquisition,
the License Agreement was automatically amended to include the San Juan MTA
under its scope.  Upon the closing of the Wireless 2000 acquisition, the License
Agreement was automatically amended to include the Alexandria, Lake Charles and
certain counties under the Monroe, Louisiana BTAs under its scope.

Intercarrier Roamer Service Agreement / Roaming Administration Service Agreement

  Under the Intercarrier Roamer Services Agreement dated as of July 17, 1998
between AT&T Wireless Services and certain of its affiliates (collectively,
"AWS") and us, we have agreed with AWS that each of us, in our capacity as a
serving provider, will provide wireless communications services for registered
customers of the other party's customers while such customers are out of their
home carrier's geographic area and in the geographic area where the serving
provider  holds a license or permit to construct and operate a wireless
communications system and station. Each home carrier whose customers receive
service from a serving provider will pay to the serving provider all of the
serving provider's charges for wireless service and all of the applicable
charges. Each serving provider's service charges per minute or partial minute
for use for the first three years will be fixed at a declining rate.

  The Intercarrier Roamer Service Agreement has a term of 20 years, which is
automatically renewed on a year-to-year basis unless terminated by either party
upon 90 days' prior written notice after 10 years. The Intercarrier Roamer
Service Agreement may be terminated earlier by either party in certain
circumstances, including, after ten years, by either party upon 90 days' prior
written notice. Neither party may assign or transfer its rights and obligations
under the Intercarrier Roamer Service Agreement without the written consent of
the other party, except to an affiliate or an assignee of its license.

  Under the Roaming Administrative Service Agreement dated as of July 17, 1998
between AWS and us, AWS has agreed to make available to us the benefits of the
intercarrier roaming services agreements it has entered into with certain other
wireless carriers, subject to the consent of such other wireless carriers and to
our remaining a member in good standing of the North American Cellular Network.
The Roaming Administrative Service Agreement has an initial term of two years,
which is automatically renewed on a year-to-year basis unless terminated by
either party upon 90 days' prior written notice. Either party

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<PAGE>

may terminate the Roaming Administrative Service Agreement for any reason at any
time upon 180 days' prior written notice. Neither party may assign or transfer
its rights and obligations under the Roaming Administrative Service Agreement
without the written consent of the other party, except to an affiliate or an
assignee of its license, except that AWS may subcontract its duties thereunder.

  Upon closing of the Digital PCS acquisition, the Intercarrier Roamer Service
Agreement was automatically amended to include the Baton Rouge, Houma, Hammond
and Lafayette BTAs under its scope. Upon closing of the Puerto Rico acquisition,
the Intercarrier Roamer Service Agreement was automatically amended to include
the San Juan MTA under its scope. Upon closing of the Wireless 2000 acquisition,
the Intercarrier Roamer Service Agreement was automatically amended to include
the Alexandria, Lake Charles and certain counties under the Monroe, Louisiana
BTAs under its scope.

Resale Agreement

  The Stockholders' Agreement provides that, from time to time, we will enter
into a Resale Agreement with AT&T Wireless PCS or certain of its affiliates that
provides that we grant to AWS the right to purchase and resell access to, and
use of, our wireless services on a non-exclusive basis within a designated area.
AWS will pay charges for any services that are resold, including usage, roaming,
directory assistance and long distance charges, and taxes and tariffs, if any,
according to a specified rate schedule. Each Resale Agreement will have an
initial term of ten years that will be automatically renewed on a year-to-year
basis unless terminated by either party upon 90 days' prior written notice. AWS
will be able to terminate each Resale Agreement for any reason at any time upon
180 days' prior written notice.

  In addition, AT&T has agreed to extend the terms of any Resale Agreement to
include the Baton Rouge, Houma, Hammond and Lafayette BTAs in connection with
the Digital PCS acquisition, the San Juan MTA in connection with the Puerto Rico
acquisition and the Alexandria, Lake Charles and certain counties under the
Monroe, Louisiana BTAs in connection with the Wireless 2000 acquisition.

Long Distance Agreement

  Under the Long Distance Agreement dated as of December 21, 1998 between AWS
and us, we purchase interstate and intrastate long distance services from AWS at
preferred rates which we resell to our customers. These preferred rates are
contingent upon our continuing affiliation with AWS.

  The Long Distance Agreement requires that we meet a minimum traffic volume
commitment during the term of the agreement, which may be up to three years. If
we fail to meet such volume commitments, we must pay to AWS the difference
between the expected fee based on the volume commitment and the fees based on
actual volume.

  The long distance services we purchase from AWS may only be used in connection
with (1) our commercial mobile radio services, (2) calls that originate on our
network and (3) those commercial mobile radio services that share our switches.

Puerto Rico License

  We acquired a 20 MHz A-Block PCS license and related assets covering the San
Juan MTA from AT&T Wireless PCS on May 25, 1999.  The San Juan MTA covers
approximately 4 million Pops in Puerto Rico, as well as the U.S. Virgin Islands.
Under a Preferred Stock Purchase Agreement, on May 24, 1999, we sold to AT&T
$40.0 million of our preferred stock for cash.  Under an Asset Purchase
Agreement, on May 25, 1999, we purchased the license and related assets from
AT&T for $95.0 million in cash.  In addition, we reimbursed AT&T $3.2 million
for microwave relocation and $1.5 million for other expenses it incurred in
connection with the acquisition.  Our agreements with AT&T were automatically
amended to include the San Juan MTA under the scope of those agreements.

Management Agreement

  As of July 17, 1998, we entered into the Management Agreement with TeleCorp
Management, a company owned by Mr. Vento and Mr. Sullivan, for the provision of
certain administrative, operational, marketing, regulatory and general business
services by TeleCorp Management to us. TeleCorp Management receives an annual
fee of approximately $0.5 million and reimbursement of out-of-pocket expenses
from us, and is eligible for an annual bonus based upon achievement of certain
objectives determined by the compensation committee of our Board. In addition,
the Management Agreement provides that certain shares owned by Mr. Vento and Mr.
Sullivan vest based upon meeting minimum construction requirements. Mr. Vento
and Mr. Sullivan have agreed to devote substantially their entire business time
and attention to the services provided under the Management Agreement.

                                      -69-
<PAGE>

  The Management Agreement has a term of five years and may be terminated
earlier by either party in certain circumstances, including by us in the event
TeleCorp Management commits fraud, fails to maintain adequately our debt or one
of the principals of TeleCorp Management is indicted for a felony, and by
TeleCorp Management in the event Mr. Vento and Mr. Sullivan are removed from our
Board, or are demoted or their duties are materially diminished. TeleCorp
Management, Mr. Vento and Mr. Sullivan are subject to certain non-competition,
non-solicitation and confidentiality provisions upon termination of the
Management Agreement. In addition, we must repurchase certain of our shares
owned by Mr. Vento and Mr. Sullivan in the event of termination.  For the 1998
fiscal year, we paid approximately $0.5 million for management services and
bonuses under the Management Agreement.  See "Management--Management Agreement."

Other Related Party Transactions

Relationship with WFI/Entel Technologies and other Site Acquisition Service
Providers

  We receive site acquisition, construction management, program management,
microwave relocation and engineering services under a master services agreement
with WFI/Entel Technologies.  Payments under such agreement were approximately
$30.7 million in the 1998 fiscal year.  At the time of entering into the master
services agreement, Mr. Vento was a senior officer, and he and Mr. Sullivan were
the controlling stockholders, of WFI/Entel Technologies. In February 1998, they
sold their interests in WFI/Entel Technologies.

Relationship with Certain of the Initial Purchasers of the Notes in the Original
Private Offering

  Net proceeds of the original private offering of the Notes to us were
approximately $317.0 million, excluding our repayment of the Series B Notes to
Lucent.  CSI and its affiliates perform various investment banking and
commercial banking services from time to time for us and our affiliates.  CSI
acted as our lead manager for our offering of the Old Notes.  The Chase
Manhattan Bank, an affiliate of CSI, is the agent bank and a lender under our
senior credit facilities. Mr. Michael R. Hannon, a member of our Board, is a
General Partner of Chase Capital Partners, an affiliate of CSI.  In addition,
affiliates of Chase Capital Partners own a portion of our common stock.  For
further information concerning these relationships,  see "Management,"
"Securities Ownership of Certain Beneficial Owners and Management" and "Plan of
Distribution."

  BT Alex. Brown Incorporated, one of the initial purchasers of the Old Notes,
is an affiliate of Bankers Trust Company, the documentation agent and one of the
lenders under our senior credit facilities for $525.0 million, as well as the
trustee under the indenture governing the Notes and the Exchange Agent.  We have
also entered into certain other transactions with Bankers Trust Company. See
"Plan of Distribution."

Relationship with Tritel Communications

  We have common stockholders with Tritel Communications and may be deemed
affiliates by virtue of such common ownership. Mr. Anderson and Mr. Fuqua, two
of our directors, also serve as directors of Tritel Communications. See
"Management." We have formed Affiliate License Co. with Tritel Communications
and Triton PCS to adopt a common brand, SunCom, that is co-branded with AT&T on
an equal emphasis basis.  Under such agreement, we, Tritel Communications and
Triton PCS each own one third of Affiliate License Co., the owner of the SunCom
name.  We and the other SunCom companies license the SunCom name from Affiliate
License Co.  Mr. Sullivan is a director of Affiliate License Co.

Relationship with Triton PCS

  We have common stockholders with Triton PCS and may be deemed affiliates by
virtue of such common ownership. Ms. Hawkins Key and Mr. Anderson, two of our
directors, also serve as directors of Triton PCS. See "Management." We have
formed Affiliate License Co. with Triton PCS and Tritel Communications to adopt
a common brand, SunCom, that is co-branded with AT&T on an equal emphasis basis.
Under such agreement, we, Triton PCS and Tritel Communications each own one
third of Affiliate License Co., the owner of the SunCom name.  We and the other
SunCom companies license the SunCom name from Affiliate License Co.  Triton PCS
transferred its ownership of the SunCom name to Affiliate License Co. for
approximately $0.6 million.  Mr. Sullivan is a director of Affiliate License Co.

Relationship with Other Entities

  TeleCorp Holding, our predecessor company, was incorporated on July 29, 1996
to participate in the FCC's auction of F-Block licenses in April 1997. TeleCorp
Holding raised money from investors to develop any such licenses it obtained in
such auction.  TeleCorp Holding successfully obtained licenses in the New
Orleans, Memphis, Beaumont, Little Rock, Houston, Tampa, Melbourne and Orlando
BTAs. In August 1997, TeleCorp Holding transferred the Houston, Tampa, Melbourne
and

                                      -70-
<PAGE>

Orlando BTAs to four newly-formed entities created by TeleCorp Holding's
stockholders: THC of Houston; THC of Tampa; THC of Melbourne; and THC of
Orlando; and issued notes in the aggregate amount of approximately $2.7 million
to such entities to develop such licenses.  TeleCorp Holding performed certain
administrative and management services and paid costs on behalf of such entities
for the year ended December 31, 1997, worth the aggregate amount of $0.7
million.  In 1998, upon the closing of the agreements with AT&T TeleCorp Holding
paid approximately $2.0 million to the entities as payment of the notes, offset
by the approximately $0.7 million in services and costs.  We, TeleCorp Holding,
THC of Houston, THC of Tampa, THC of Melbourne, THC of Orlando, TeleCorp WCS and
Telecorp LMDS have common stockholders in Mr. Sullivan and  Mr. Vento.

  On May 5, 1997, TeleCorp Holding lent approximately $3.0 million to TeleCorp
WCS, Inc. in exchange for interest-free notes from TeleCorp WCS.  On May 5,
1997, TeleCorp Holding received equity investments in exchange for the right to
receive (1) the notes from TeleCorp WCS, (2) any cash, notes or other assets
received by TeleCorp Holding on behalf of the notes or (3) any capital stock
into which the notes were converted. TeleCorp WCS repaid approximately $2.7
million of the notes with cash to TeleCorp Holding, and TeleCorp Holding
forwarded such cash to the equity investors.  TeleCorp WCS issued a note in the
amount of approximately $0.3 million directly to the investors on behalf of the
remaining $0.3 million outstanding under the notes.  TeleCorp WCS converted such
notes into capital stock issued to the investors.

  Mr. Sullivan and Mr. Vento are stockholders in us, TeleCorp Holding and
TeleCorp WCS.

  Viper Wireless was formed to participate in the FCC's reauction of C-Block PCS
licenses in most of our markets. TeleCorp Holding owns 85% of Viper Wireless,
and Mr. Vento and Mr. Sullivan collectively own the remaining 15%.  AT&T and
certain of our cash equity investors have committed an aggregate of
approximately $32.3 million in exchange for additional shares of our preferred
and common stock if Viper Wireless is the successful bidder in the reauction.
AT&T and the investors funded approximately $6.5 million of their commitment on
May 14, 1999, and approximately $25.8 million will be funded when we make
payments to the FCC with respect to these licenses, or if the FCC does not
refund amounts we paid to them as deposits in connection with the reauction
within 180 days of the date of deposit.  The FCC has made additional PCS
spectrum available through a reauction of certain C-Block and other licenses
returned to, or repossessed by, the FCC.  We participated in this for additional
spectrum through Viper Wireless.  On April 20, 1999, the FCC announced that the
reauction ended, and Viper Wireless was the higher bidder for additional
spectrum in New Orleans, Houma and Alexandria, Louisiana, San Juan, Puerto Rico,
Jackson, Tennessee and Beaumont, Texas.  On June 3, 1999, a petition was filed
by certain secured creditors of DCR PCS and Pocket Communications against the
application of Viper Wireless for the Houma and New Orleans licenses.  The
petition seeks deferral of the grant of these licenses to Viper Wireless until
an appeal, by the secured creditors of DCR PCS and Pocket Communications has
been resolved or in the alternative, a condition noting that a pre-existing
claim to the licenses may exist if the secured creditors are successful in that
appeal.  The appeal seeks review of the bankruptcy court's ruling concerning DCR
PCS and Pocket Communications permitting DCR PCS to file its election notice,
which ultimately resulted in the return of these licenses to the FCC, over the
objection of the secured creditors of DCR PCS and Pocket Communications.  Viper
Wireless filed an opposition to the petition on June 15, 1999.

Relationship with Toronto Dominion

  Toronto Dominion Investments, a Cash Equity Investor, and TD Securities (USA),
a lender under our senior credit facilities for $525.0 million, may be deemed to
be under common control.

Relationships with Stockholders

  From inception through June 1998, our primary source of financing was notes
issued to our stockholders. In July 1996, we issued $0.5 million of subordinated
promissory notes to our stockholders. These notes were converted into 50 shares
of our Series A Preferred Stock in April 1997. In December 1997, we issued
various promissory notes to our stockholders. These notes were converted into
mandatorily redeemable preferred stock in July 1998. From January 1, 1998 to
June 30, 1998, we borrowed approximately $22.5 million in the form of promissory
notes to existing and prospective stockholders to satisfy working capital needs.
These notes were converted into equity of TeleCorp in July 1998 in connection
with the consummation of the venture with AT&T.

Relationship with McDermott, Will & Emery

  We use the services of a law firm, McDermott, Will & Emery, to which Mr.
Sullivan, our Executive Vice President, Chief Financial Officer and a member of
our Board, is counsel. Prior to July 1998, Mr. Sullivan was a partner of
McDermott, Will & Emery.  For the 1998 fiscal year we paid McDermott, Will &
Emery approximately $2.1 million.

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                              CERTAIN INDEBTEDNESS

Senior Credit Facilities

     On July 17, 1998 (the "Senior Credit Facilities Effective Date"), we
entered into senior credit facilities for $525.0 million (the "Senior Credit
Facilities") with certain lenders (the "Lenders"), including The Chase Manhattan
Bank, as administrative agent and issuing bank, TD Securities (USA) Inc., as
syndication agent, and Bankers Trust Company, as documentation agent (the credit
agreement governing the Senior Credit Facilities, the "Senior Credit
Agreement"). The Senior Credit Facilities provide for (1) a $150.0 million
senior secured term loan (the "Tranche A Term Loan"), which matures in January
2007, (2) a $225.0 million senior secured term loan (the "Tranche B Term Loan,"
and together with the Tranche A Term Loan, the "Term Loans"), which matures in
January 2008, (3) a $150.0 million senior secured revolving credit facility (the
"Revolving Credit Facility," and together with the Term Loans, the "Senior
Facilities"), which matures in January 2007 and (4) an uncommitted $75.0 million
senior secured term loan in the form of an expansion facility (the "Expansion
Facility," and together with the Senior Facilities, the "Facilities"), which
will mature no sooner than January 2008.

     The Tranche A Term Loan must be repaid, beginning in September 2002, in 18
consecutive quarterly installments.  The amount of each of the first six
installments is $3.75 million.  The amount of each of the next four installments
is $9.4 million.  The amount of each of the last eight installments is $11.25
million.  The Tranche B Term Loan is required to be repaid, beginning in
September 2002, in 22 consecutive quarterly installments.  The amount of each of
the first 18 installments is $0.6 million.  The amount of each of the last four
installments is $54.0 million.  The commitment to make loans under the Revolving
Credit Facility ("Revolving Credit Loans," and together with the Term Loans, the
"Loans") automatically and permanently is reduced, beginning in April 2005 after
the Senior Credit Facilities Effective Date, by virtue of eight consecutive
quarterly reductions.  The amount of each of the first four reductions is $12.5
million.  The amount of each of the last four reductions is $25.0 million.

     We may select the rate at which interest accrues on all Loans. We may
choose a "Eurodollar Loan," which accrues at LIBOR, multiplied by the ratio of
which one is the numerator and one minus the aggregate of maximum reserve
percentages (including any marginal, special, emergency or supplemental
reserves) expressed as a decimal established by the Board of Governors of the
Federal Reserve system that applies to the administrative agent regarding
eurocurrency funding is the denominator, and added to the Applicable Margin. The
"Applicable Margin" in the case of Eurodollar Loan means:

          .  a rate between 1.25% and 2.75% per annum, depending upon our
             leverage ratio, with respect to the Tranche A Term Loan and the
             Revolving Credit Loans; and

          .  3.25% per annum, with respect to the Tranche B term loan.

     Alternatively, we may choose an "ABR Loan," which accrues at the higher of
either the Administrative Agent's prime rate and the Federal Funds Effective
Rate (as defined in the Senior Credit Agreement) plus 0.50% plus the Applicable
Margin.  "Applicable Margin" in the case of an ABR Loans means:

          .  a rate between 0.25% and 1.75% per annum, depending on our leverage
             ratio with respect to the Tranche A Term Loan and the Revolving
             Credit Loans; and

          .  2.25% per annum, with respect to the Tranche B Term Loan.

     Interest on any overdue amounts will accrue at a rate per annum equal to
2.00% plus the rate otherwise applicable to such amounts.

     The terms of the Senior Credit Facilities require us to pay an annual
commitment fee between 0.50% and 1.25%, depending on the percentage drawn, of
the unused portion of the Revolving Credit Facility. The Tranche A Term Loan and
Tranche B Term Loan are payable quarterly in arrears, and a separate agent's fee
is payable to the administrative agent. The Senior Credit Facilities also
require us to purchase an interest rate hedging contract covering an amount
equal to at least 50% of the total amount of our outstanding indebtedness,
excluding indebtedness which earns interest at a fixed rate.

     The Tranche A Term Loan automatically will be reduced to the extent its
undrawn portion exceeds $50.0 million in July 2000 by the amount of such excess.
The Term Loans will be prepaid, and commitments under the Revolving Credit
Facility will be reduced, in an aggregate amount equal to:

     (1)  50% of the excess cash flow of each fiscal year commencing with the
fiscal year ending December 31, 2001;

                                      -72-
<PAGE>

     (2)  100% of the net proceeds of asset sales outside of the ordinary course
of business, in excess of a $1.0 million annual threshold, or unused insurance
proceeds;

     (3)  100% of the net cash proceeds of issuances of debt obligations (other
than debt obligations permitted by the Senior Credit Agreement, including the
issuance of the Notes); and

     (4)  100% of the net cash proceeds of issuances of equity securities (other
than in connection with the Cash Equity);

provided that the prepayments and reductions set forth under clauses (3) and (4)
will not be required if, after giving effect to such issuance, (A) our leverage
ratio would be less than 5.0 to 1.0 and (B) in the case of clause (4), we would
be in pro forma compliance with each covenant contained in the Senior Credit
Agreement.

     We may establish the Expansion Facility so long as, both before and after
giving effect to it, no default exists under the Senior Credit Agreement and we
are in pro forma compliance with each of the financial covenants contained in
the Senior Credit Agreement. No Lender is required to participate in the
Expansion Facility.  Each of our existing and future domestic subsidiaries
unconditionally guarantees all our obligations under the Senior Credit
Facilities (the "Credit Facility Subsidiary Guarantees").  The Facilities and
the Credit Facility Subsidiary Guarantees, and any related hedging contracts
provided by the Lenders under the Senior Credit Facilities, are secured by
substantially all of our assets and the assets of each of our existing and
future domestic subsidiaries, including a first priority pledge of all of the
capital stock held by us or any of our subsidiaries; provided that the pledge of
shares of foreign subsidiaries will be limited to 65% of the outstanding shares
of such foreign subsidiaries.  Under the Senior Credit Facilities, no action may
be taken against our licenses unless and until the requisite approval is
obtained from the FCC. We have organized special purpose subsidiaries to hold
our licenses, our real property and our equipment. Each such single purpose
subsidiary is prohibited from incurring any liabilities or obligations other
than:

          .  the Credit Facility Subsidiary Guarantee issued by it;

          .  obligations under the security agreement entered into by it in
             connection with the Senior Credit Facilities;

          .  obligations resulting from regulatory requirements; or

          .  taxes and liabilities incurred in the ordinary course of its
             business incident to its business or necessary to maintain its
             existence.

     The Senior Credit Agreement contains covenants customary for facilities
similar to the Senior Credit Facilities, including covenants that restrict,
among other things:

          .  the incurrence of indebtedness and the issuance of certain equity
             securities;

          .  the creation of liens;

          .  sale and lease-back transactions, mergers, consolidations and
             liquidations;

          .  certain investments, loans, guarantees, advances and acquisitions;

          .  sales of assets;

          .  hedging agreements;

          .  certain payments, including the payment of dividends or
             distributions in respect of capital stock and prepayments of the
             Notes;

          .  certain transactions with affiliates;

          .  the entering into of certain restrictive agreements; and

          .  the amendment of certain material agreements.

     The Senior Credit Agreement requires us to maintain certain ratios,
including:

                                      -73-
<PAGE>

          .  a senior debt to capital ratio;

          .  a senior debt to EBITDA ratio;

          .  a total debt to EBITDA ratio;

          .  an interest coverage ratio; and

          .  a fixed charges ratio;

and to satisfy certain tests, including tests relating to:

          .  the minimum population covered by our network;

          .  the minimum number of subscribers to our services;

          .  the minimum aggregate service revenue per subscriber; and

          .  limits on capital expenditures.

     In particular, we may not permit the following ratio to exceed 0.5 to 1.0:
the numerator is senior debt and the denominator is the sum of (1) all of our
indebtedness and the indebtedness of our subsidiaries which matures, in more
than one year, whether, by its terms renewal or extension, plus (2) certain
equity contributions, plus (3) commitments of the Cash Equity Investors to
purchase shares of our capital stock under the Securities Purchase Agreement.

     The denominator is known as "Total Capital." However, if (1) the Cash
Equity Investors have satisfied in full in cash all commitments to purchase
shares of our capital stock under the Securities Purchase Agreement and (2) our
network is substantially complete in markets that cover more than 60% of the
aggregate number of residents within the areas that our licenses cover, the
ratio of senior debt to Total Capital may exceed 0.5 to 1.00, but may not exceed
0.55 to 1.00. In the above contingency, the aggregate number of residents are as
determined by the Donnelley Marketing Service Guide published in 1995. The
Senior Credit Agreement also contains customary representations, warranties,
indemnities, conditions precedent to borrowing and events of default.

     Borrowings under the Senior Credit Facilities are available to finance
capital expenditures related to the construction of our network, the acquisition
of related businesses, working capital needs and subscriber acquisition costs.

Vendor Financing

     In May 1998, we entered into a vendor procurement contract (the
"Procurement Contract") with Lucent, under which we agreed to purchase radio,
switching and related equipment and services for the development of our network.
In connection with the Procurement Contract, Lucent agreed to provide us with
$80.0 million of junior subordinated vendor financing. In addition, Lucent has
agreed to make available up to an additional $80.0 million of junior
subordinated vendor financing in amounts up to 30% of the value of equipment,
software and services provided by Lucent in connection with any additional
markets we acquire (the "Vendor Expansion Facility"). We have $15.0 million of
availability under the Vendor Expansion Facility agreement as a result of the
Puerto Rico acquisition. The expiration date for any notes issued under the
Vendor Expansion Facility is the date which is six months after the scheduled
maturity of the Notes.

      Under a Note Purchase Agreement dated as of May 11, 1998 (the "Note
Purchase Agreement"), between Lucent and us, we have issued to Lucent $40.0
million aggregate principal amount of Series A Notes due 2012. All proceeds from
the sale of these notes are to be used to develop our network in certain
designated areas.

     We had also issued to Lucent $40.0 million aggregate principal amount of
Series B Notes due 2012.  We repaid these notes with the proceeds from the
offering of the Old Notes.  Upon the consummation of the offering of the Old
Notes, Lucent's commitment to provide us with $40.0 million of Series B notes
terminated.

     We have a commitment from Lucent to purchase an additional $7.5 million of
Series A Notes and $7.5 million of Series B Notes under to the Vendor Expansion
Facility in connection with the Puerto Rico acquisition. The obligation of
Lucent to purchase notes under the Vendor Expansion Facility is subject to a
number of conditions, including the requirement that we have

                                      -74-
<PAGE>

received certain cash equity contributions in respect of each additional market
and that we irrevocably commit to purchase one mobile switching center and 50
base stations for each additional market from Lucent.

     The original $40.0 million principal amount of the Series A Notes is due in
2012, but is subject to mandatory prepayment on a dollar for dollar basis out of
the proceeds of future equity offerings in excess of $130.0 million (exclusive
of the $5.0 million of equity to be contributed in connection with the Louisiana
acquisitions). Any Series A Notes issued under the Vendor Expansion Facility
will mature six months after the Notes, but will be subject to mandatory
prepayment on a dollar for dollar basis out of the proceeds of future equity
offerings in excess of $175.7 million (exclusive of all cash equity received in
the Transactions).

     Any Series B Notes issued under the Vendor Expansion Facility will mature
six months after the Notes, but in no event later than May 1, 2012, and will be
subject to mandatory prepayment on a dollar for dollar basis out of the net
proceeds of any future public or private offering or sale of debt securities
(exclusive of borrowings under the Credit Agreement).

     The Series A Notes, including any Series A Notes issued under the Vendor
Expansion Facility, will initially accrue interest at a rate of 8.5% per annum.
If the Series A Notes are not redeemed in full on or prior to January 1, 2001,
the rate will increase by 1.5% per annum on each January 1 thereafter, beginning
January 1, 2002, provided that the maximum interest rate will not exceed 12 1/8%
which is 50 basis points per annum over the initial yield on the Notes. Interest
on the Series A Notes will be payable semi-annually, provided that prior to May
11, 2004, interest will be payable in additional Series A Notes and thereafter
will be payable in cash, unless prohibited by the Senior Credit Facilities or
the indenture governing the Notes.

     Any Series B Notes issued under the Vendor Expansion Facility will
initially accrue interest at a rate of 10% per annum. If the Series B Notes are
not redeemed in full on or prior to January 1, 2000, the rate will increase by
1.5% per annum on each January 1 thereafter beginning on January 1, 2001,
provided that the maximum interest rate will not exceed 12 1/8% which is 50
basis points per annum over the initial yield on the Notes. Interest on the
Series B Notes will be payable semi-annually, provided that prior to May 11,
2004, interest will be payable in additional Series B Notes and thereafter will
be payable in cash unless prohibited by the terms of the Senior Credit
Facilities or the indenture governing the Notes.

     Upon a change of control as defined by the Note Purchase Agreement, the
Series A and Series B Notes must be repaid at their principal amount plus a
premium. The Series A and Series B may not be prepaid, however, if prohibited by
the terms of the Senior Credit Facilities, the indenture governing the Notes or
other indebtedness that ranks senior to the Series A and Series B Notes. In the
event a change of control occurs prior to May 1, 2002 in the case of the Series
A Notes, or in the case of the Series B Notes, May 1, 2000, the Series A and
Series B Notes may be prepaid in accordance with the optional prepayment
provisions.

     Under the Note Purchase Agreement, Lucent may not engage in any remarketing
efforts of the Series A or Series B Notes, or unused commitments relating to the
Series A or Series B Notes, prior to January 23, 2000.  If Lucent has not
completed certain sales in respect of Series A or Series B Notes then
outstanding prior to January 1, 2003, we must pay Lucent up to 3% of the then
outstanding principal amount of all Series A and Series B Notes to defray any
actual marketing distribution and other costs incurred by Lucent in connection
with any such sales remarketing.

     The Series A Notes may be prepaid without payment of a premium at any time
prior to May 1, 2002. In addition, the Series A note may be prepaid at any time
after May 1, 2002 without payment of a premium to the extent Lucent or its
affiliates have retained them. The Series B Notes may be prepaid without payment
of a premium at any time prior to May 1, 2000. In addition, the Series B Notes
may be prepaid at any time after May 1, 2000 without payment of a premium to the
extent Lucent or its affiliates have retained them.

     If we are subject to any bankruptcy or related procedures or there is any
default in the payment of our debt, including borrowings under the Senior Credit
Facilities and the Notes, that ranks senior in right of payment to the Series A
and Series B Notes, we will pay the senior debt in full before we make payments
on the Series A and Series B Notes.  If a non-payment default occurs with
respect to any such debt, the holders of more than $25.0 million principal
amount of such debt may declare a payment blockage period of up to 179 days.

     Events of default under the Note Purchase Agreement include, subject to
certain cure periods:

          .  the failure to pay principal or interest under such agreement when
             due;

          .  violation of covenants;

          .  inaccuracy of representations and warranties;

                                      -75-
<PAGE>

          .  cross-default for other indebtedness;

          .  bankruptcy;

          .  material judgments; and

          .  termination of the Procurement Contract.

Government Debt

     In connection with our purchase of our F-Block licenses, we issued to the
FCC secured installment payment plan notes in an aggregate principal amount of
$9.2 million (the "FCC Notes"). This debt is shown on our balance sheet net of a
discount of $1.2 million reflecting the below market interest rate on the debt.
The FCC Notes are due April 28, 2007, and bear interest at a rate of 6.25% per
annum. In addition, we assumed $4.1 million in aggregate principal amount of
additional secured installment payment plan notes in connection with the Digital
PCS acquisition (the "Digital PCS Notes"). This debt is shown on our balance
sheet net of a discount of $0.7 million reflecting the below market interest
rate on the debt. The Digital PCS Notes are due August 21, 2007, and bear
interest at a rate of 6.125% per annum. In connection with the Wireless 2000
acquisition, we assumed $7.4 million in aggregate principal amount of additional
secured installment payment plan notes (the "Wireless 2000 Notes"). This debt is
shown on our balance sheet net of a discount of $1.3 million reflecting the
below market interest rate on the debt. The Wireless 2000 Notes are due
September 17, 2006, and bear interest at a rate of 7.0% per annum. A security
agreement secures the FCC Notes, Wireless 2000 Notes and Digital PCS Notes,
which grants the FCC a first priority security interest in the license for which
the applicable note was issued. In the event of a default under the FCC Notes,
Wireless 2000 Notes or Digital PCS Notes, the FCC may revoke the licenses for
which such defaulted notes were issued.

                                      -76-
<PAGE>

                          DESCRIPTION OF CAPITAL STOCK

Our authorized capital stock, as set forth in our restated certificate of
incorporation dated April 20, 1999, consists of:

  .  1,904,010 shares of common stock, par value $0.01 per share, consisting of:
     .    950,000 shares of Class A Common Stock
     .    950,000 shares of Class B Common Stock
     .    1,000 shares of Class C Common Stock
     .    3,000 shares of Class D Common Stock
     .    10 shares of Voting Preference Common Stock

  .  715,000 shares of preferred stock, par value $0.01 per share, consisting
     of:

     .    100,000 shares of Series A Preferred Stock
     .    200,000 shares of Series B Preferred Stock
     .    215,000 shares of Series C Preferred Stock
     .    50,000 shares of Series D Preferred Stock
     .    30,000 shares of Series E Preferred Stock
     .    50,000 shares of Series F Preferred Stock
     .    70,000 shares of Senior Common Stock

As of May 31, 1999, and after giving pro forma effect to the Transactions, our
outstanding capital stock consisted of:

     .    236,824 shares of Class A Common Stock
     .    919 shares of Class C Common Stock
     .    2,755 shares of Class D Common Stock
     .    10 shares of Voting Preference Common Stock
     .    97,473 shares of Series A Preferred Stock
     .    210,608 shares of Series C Preferred Stock
     .    49,417 shares of Series D Preferred Stock
     .    24,150 shares of Series E Preferred Stock
     .    48,261 shares of Series F Preferred Stock

     The following summaries of certain provisions of the common stock and the
preferred stock are not complete and are subject to, and qualified in their
entirety by, the provisions of our restated certificate of incorporation and
bylaws. Subject to any required approval of holders of any shares of any class
or series of preferred stock, our Board has the power, by resolution, to issue
additional shares of preferred stock with such preferences, rights and
designations as it shall determine.

Voting Rights

     Subject to the rights of specific classes of stock to vote as a class on
certain matters, the holders of the Class A Common Stock are entitled to
4,990,000 votes and the holders of Voting Preference Common Stock are entitled
to 5,010,000 votes of all outstanding capital stock.  No other class of capital
stock has the right to vote on any matter except as required by law.  In
addition, for so long as AT&T and its affiliates continue to hold at least two-
thirds of the shares of Series A Preferred Stock they held as of May 14, 1999,
they will be entitled, but not obliged, to nominate two of our directors.  After
an initial public offering of our securities, or after the special voting rights
of Voting Preference Common Stock are eliminated, they may nominate only one
director.

     Our restated certificate of incorporation provides that, except where a
class of capital stock has the right to vote as a class, a quorum shall be
present so long as a majority of the outstanding Voting Preference Common Stock
and shares representing at least 5,010,000 votes are present. When a class vote
is required, a majority of such class must also be present. Further, any action
not requiring a class vote may be approved by the affirmative vote of a majority
of Voting Preference Common Stock present at any meeting where a quorum is
present.

                                      -77-
<PAGE>

The holders of each class of preferred stock have the right to vote as a class
on any measure to:

     .    authorize or issue any shares senior to or on a parity with such
          class;

     .    amend our restated certificate of incorporation to change any of the
          characteristics of such class; or

     .    authorize or issue any security convertible into, exchangeable for or
          granting the right to purchase or otherwise receive any shares of
          stock senior to or on a parity with such class.

The majority of each such class of preferred stock must affirmatively vote to
act.

     Subject to any class voting requirements, shares of Common Stock
representing at least two-thirds of the votes entitled to be cast for the
election of our directors must affirmatively vote for any amendment, alteration
or repeal of our certificate of incorporation or bylaws.

     If (1) we receive an opinion of regulatory counsel that Class A Common
Stock and Voting Preference Common Stock can vote and be treated as a single
class of stock for quorum purposes and have one vote per share, (2) not less
than two-thirds of the outstanding Class A Common Stock affirmatively vote for
such single class status, and (3) our Board has not determined that it is likely
to be detrimental to us, we will seek the approval of the FCC to have Class A
Common Stock and Voting Preference Common Stock vote and be treated together as
a single class with one vote per share.

     Certain of our stockholders have entered into agreements (including the
Stockholders' Agreement and the Investors Stockholders' Agreement dated as of
July 17, 1998 among the Cash Equity Investors and the Management Stockholders)
regarding the voting of their shares on certain matters, including the election
of directors. See "Certain Relationships and Related Transactions--The AT&T
Agreements--Stockholders Agreement."

Conversion

     After July 17, 2006, holders of Series A Preferred Stock may convert their
shares into shares of Class A Common Stock at a conversion rate equal to the
liquidation preference of Series A Preferred Stock divided by the market price
of Class A Common Stock.

     On the date of an initial public offering of our capital stock, we may
convert shares of Series C Preferred Stock and Series E Preferred Stock into
shares of Common Stock at a conversion rate equal to the liquidation preference
of Series C Preferred Stock or Series E Preferred Stock, as applicable, divided
by the initial public offering price. If we convert Series C Preferred Stock to
shares of Common Stock on the date of an initial public offering of our capital
stock, shares of Series D Preferred Stock will be automatically converted into
shares of Senior Common Stock on that date at a rate equal to the liquidation
preference of Series D Preferred Stock divided by the initial public offering
price.

     At any time, holders of Series F Preferred Stock may convert each share
into one share of Class A Common Stock or Class B Common Stock; provided, that,
until the happening of certain events, the first 631.27 of such shares to be
converted are convertible into shares of Class D Common Stock. If we convert
Series C Preferred Stock into Common Stock upon an initial public offering of
our capital stock, each share of Series F Preferred Stock will be automatically
converted into one share of Senior Common Stock.

     At any time, holders of Senior Common Stock may convert each share into one
share of Class A Common Stock or Class B Common Stock; provided, that, until the
happening of certain events, the first 631.27 of such shares to be converted are
convertible into shares of Class D Common Stock.

     At any time, holders of Class A Common Stock and Class B Common Stock may
convert their shares into shares of the other class.

     If we receive an opinion of counsel that Class A Common Stock and Voting
Preference Common Stock can vote and be treated as a single class of stock with
one vote per share, then, unless our Board shall determine that it is likely to
be detrimental to us, holders of Class C Common Stock and Class D Common Stock
may convert their shares into shares of Class A Common Stock or Class B Common
Stock.

     All conversions are subject to obtaining any required FCC approvals.

                                      -78-
<PAGE>

Redemption

     We have the right to redeem certain of our capital stock as follows:

          .    Shares of Series A Preferred Stock: following 30 days after the
               10th anniversary of issuance at the liquidation preference the
               Series A preferred Stock;

          .    Shares of Series B Preferred Stock: at any time at the
               liquidation preference of the Series Preferred Stock; and

          .    Shares of Series C Preferred Stock and Series D Preferred Stock:
               at any time at the liquidation preferences of Series C Preferred
               Stock and Series D Preferred Stock; provided, that if we redeem
               any shares of either Series C Preferred Stock or Series D
               Preferred Stock, we must redeem a proportionate number of shares
               of the other.

     In addition, the holders of certain classes of capital stock have the right
to require us to redeem their shares as follows:

          .    Holders of Series A Preferred Stock or Series B Preferred Stock:
               following the 30th day after the 20th anniversary of issuance at
               the liquidation preference of the Series A Preferred Stock or
               Series B Preferred Stock; and

          .    Holders of Series C Preferred Stock, Series D Preferred Stock or
               Series E Preferred Stock: following the 30th day after the 20th
               anniversary of issuance at the liquidation preference therefor
               Series C Preferred Stock, Series D Preferred Stock and Series E
               Preferred Stock.

     Neither we nor any holder of shares of any class of our capital stock may
cause us to redeem our capital stock if, at such time:

          .    we are insolvent or will be rendered insolvent by such
redemption; or

          .    law or any of our agreements prohibits such redemption.

Further, our restated certificate of incorporation restricts our ability to
redeem any shares of capital stock to the extent shares of capital stock ranking
senior to or on a parity with such shares remain outstanding or dividends on
such senior or parity shares have not been paid in full.

     Our restated certificate of incorporation also provides for our redemption
of any shares of our capital stock that is held by stockholders whose holding of
such shares, in the opinion of our Board, may result in the loss of, or failure
to obtain the reinstatement of, any of our licenses or franchises.

     The Management Agreement provides for the redemption by us of certain
shares of Class A Common Stock and Series E Preferred Stock held by Mr. Vento
and Mr. Sullivan in certain circumstances. See "Management--Management
Agreement."

Ranking

     With respect to the payment of dividends and distributions upon our
liquidation, dissolution or winding up, classes of our preferred stock ranks as
follows:

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------------------
        Class of Stock                    Parity with                       Junior to                        Senior to
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                             <C>                              <C>                              <C>
Series A Preferred              Series B Preferred               None                             Series C Preferred
                                                                                                  Series D Preferred
                                                                                                  Series E Preferred
                                                                                                  Series F Preferred
                                                                                                  Senior Common Stock
                                                                                                  Common Stock
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>


                                      -79-
<PAGE>

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------------------
        Class of Stock                    Parity with                       Junior to                        Senior to
- ----------------------------------------------------------------------------------------------------------------------------------
<S>                             <C>                              <C>                              <C>
Series B Preferred              Series A Preferred               None                             Series C Preferred
                                                                                                  Series D Preferred
                                                                                                  Series E Preferred
                                                                                                  Series F Preferred
                                                                                                  Senior Common Stock
                                                                                                  Common Stock
- ----------------------------------------------------------------------------------------------------------------------------------
Series C Preferred              Series D Preferred               Series A Preferred and Series    Series E Preferred
                                (except when a statutory         B Preferred Stock                Series F Preferred
                                liquidation )                    Series D Preferred (only upon    Senior Common Stock
                                Common Stock (only with          a statutory liquidation)         Common Stock (only with
                                respect to dividends)                                             respect to dissolution,
                                                                                                  liquidation and winding up)
- ---------------------------------------------------------------------------------------------------------------------------------
Series D Preferred              Series C preferred               Series A Preferred               Series C Preferred
                                (except when a statutory         Series B Preferred               (only upon a statutory
                                liquidation)                                                      liquidation)
                                Common Stock (only with                                           Series E Preferred
                                respect to dividends)                                             Series F Preferred
                                                                                                  Senior Common Stock
                                                                                                  Common Stock (only with
                                                                                                  respect to dissolution,
                                                                                                  liquidation and winding up)
- ---------------------------------------------------------------------------------------------------------------------------------
Series E Preferred              Common Stock (only with          Series A Preferred               Series F Preferred
                                respect to dividends)            Series B Preferred               Senior Common Stock
                                                                 Series C Preferred               Common Stock
                                                                 Series D Preferred

- ---------------------------------------------------------------------------------------------------------------------------------
Series F Preferred              Senior Common Stock              Series A Preferred               Common Stock
                                Common Stock (except when a      Series B Preferred               (only upon a statutory
                                statutory liquidation)           Series C Preferred               liquidation)
                                                                 Series D Preferred
                                                                 Series E Preferred

- ---------------------------------------------------------------------------------------------------------------------------------
Senior Common Stock             Series F Preferred               Series A Preferred               Common Stock
                                                                 Series B Preferred
                                                                 Series C Preferred
                                                                 Series D Preferred
                                                                 Series E Preferred
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>

Dividends


     The holders of Series A Preferred Stock and Series B Preferred Stock are
entitled to receive annual dividends equal to 10% of the liquidation preference
related to their shares; provided that so long as any shares of Series A
Preferred Stock or Series B Preferred Stock are outstanding, no dividends may be
paid on any shares of any class of capital stock ranking junior to Series A
Preferred Stock or Series B Preferred Stock.  Dividends accrue from the date of
issuance of the shares and are payable quarterly, provided that we have the
option to defer payments for up to ten and one-half years from the date of
issuance.

     The holder of Series C Preferred Stock, Series D Preferred Stock, Series E
Preferred Stock, Series F Preferred Stock and Senior Common Stock are entitled
to dividends as declared by our Board.

     Subject to the rights of the holders of the Preferred Stock, our Board may
declare dividends on the Common Stock; provided, that dividends on Class C
Common Stock and Class D Common Stock may only be paid up to the amount by which
funds legally available for such dividends exceed the excess of (1) fair market
value of the assets of TeleCorp Holding less TeleCorp Holding's liabilities over
(2) the aggregate par value of Class C Common Stock and Class D Common Stock, at
our Board's discretion. Dividends may only be paid on the other classes of
Common Stock up to the amount legally available after subtracting the maximum
amount payable in respect of Class C Common Stock and Class D Common Stock, at
our Board's discretion.

     We may not pay dividends on any shares of any class of our capital stock
if, at such time:

                                      -80-
<PAGE>

          .    we are insolvent or will be rendered insolvent by such payments;
               or

          .    law or any of our agreements prohibits such dividend payments.

Further, our restated certificate of incorporation restricts our ability to pay
any dividends on any class of capital stock to the extent shares of capital
stock ranking senior to or on a parity with such class remain outstanding or
dividends on such senior or parity shares have not been paid in full.

Liquidation Preference

     The holders of Preferred Stock are entitled to certain preferences with
respect to distributions upon our liquidation, dissolution or winding up as
follows:

          .    Holders of Series A Preferred Stock and Series B Preferred Stock
               are entitled to a preference per share equal to $1,000 plus
               accrued and unpaid dividends on such shares.

          .    Holders of Series C Preferred Stock are entitled to a preference
               per share equal to the paid-in capital per share of Series C
               Preferred Stock together with interest on $1,000 from the date of
               issuance at a rate of 6% per annum, compounded quarterly, less
               the amount of any dividends paid on such share, plus accrued and
               unpaid dividends.

          .    Holders of Series D Preferred Stock are entitled to a preference
               per share equal to $1,000 together with interest thereon from the
               date of issuance at rate of 6% per annum, compounded quarterly,
               less the amount of any dividends paid on such share, plus accrued
               and unpaid dividends.

          .    Holders of Series E Preferred Stock are entitled to a preference
               per share equal to the amount of accrued and unpaid dividends on
               such share, together with interest on $1,000 from the date of
               issuance at a rate of 6% per annum, compounded quarterly, less
               the amount of any dividends declared and paid on such share.

          .    Holders of Series F Preferred Stock are entitled to a preference
               equal to $.01 plus accrued and unpaid dividends on such shares.

          .    Holders of Senior Common Stock are entitled to a preference per
               share equal to the liquidation preference associated with the
               shares of Series D Preferred Stock for all shares of Series D
               Preferred Stock converted into Senior Common Stock plus the
               liquidation preference associated with the shares of Series F
               Preferred Stock for all shares of Series F Preferred Stock
               converted into Senior Common Stock, divided by the number of
               shares of Senior Common Stock into which shares of Series D
               Preferred Stock and Series F Preferred Stock were converted.

     Following payment of all amounts payable to the holders of Preferred Stock
upon our liquidation, dissolution or winding up, the holders of Class C Common
Stock and Class D Common Stock shall be entitled to receive the fair market
value of the assets of TeleCorp Holding less TeleCorp Holding's liabilities.
The holders of the other classes of Common Stock shall be entitled to receive
the remaining amounts available for distribution.

Transfer Restriction

     Certain of our stockholders have entered into agreements that restrict
transfer of their shares and provide for the happening of certain events, such
as share conversions.  See "Certain Relationships and Related Transactions--AT&T
Agreements" and "--Management Agreement."

     Our restated certificate of incorporation provides that, upon the happening
of certain events described in the Stockholders' Agreement, we have the right to
exchange all or certain of the shares of Series A Preferred Stock, Series D
Preferred Stock, Series F Preferred Stock, Senior Common Stock and Common Stock
held by AT&T for an equal number of shares of Series B Preferred Stock. See
"Certain Relationships and Related Transactions--AT&T Agreements."

                                      -81-
<PAGE>

                            DESCRIPTION OF THE NOTES

General

     As used in this section entitled "Description of the Notes," the terms
"we," "us" and "our" means TeleCorp PCS, Inc., a Delaware corporation, but does
not include any of our subsidiaries. Capitalized terms used in this section and
not otherwise defined have the meanings set forth under "--Certain Definitions."

     The Old Notes have been and the Exchange Notes will be, upon request, from
us issued under the Indenture, dated as of April 23, 1999 (the "Indenture"),
among us, TeleCorp Communications, as our subsidiary guarantor, and Bankers
Trust Company, as Trustee (the "Trustee"), a copy of which is available.

     The following summary of certain provisions of the Indenture, the Old Notes
and the Exchange Notes is not complete and is subject to, and is qualified in
its entirety by reference to, all the provisions of the Indenture, including the
definitions of certain terms in and those terms made a part of the Indenture and
the Notes by the TIA.

     Principal of, premium, if any, and interest on the Notes will be payable,
and the Notes may be exchanged or transferred, at our office or agency in the
Borough of Manhattan, The City of New York (which initially shall be the
corporate trust office of the Trustee, at 4 Albany Street, New York, New York
10006), except that, at our option, payment of interest may be made by check
mailed to the registered holders of the Notes at their registered addresses.

     The Notes are and will be issued only in fully registered form, without
coupons, in denominations of $1,000 and integral multiples of $1,000.  No
service charge will be made for any registration of transfer or exchange of
Notes, but we may require payment of a sum sufficient to cover any transfer tax
or other similar governmental charge payable in connection with such transfer or
exchange.

Terms of the Notes

     The Notes are our unsecured senior subordinated obligations, limited to
$575 million aggregate principal amount at maturity, and will mature on April
15, 2009.

     Cash interest will not accrue or be payable on the Notes prior to April 15,
2004. Cash interest will accrue at the rate per annum shown on the front cover
page of this prospectus from April 15, 2004, or from the most recent date to
which interest has been paid or provided for, payable semiannually to holders of
record at the close of business on the April 1 or October 1 immediately
preceding the interest payment date on April 15 and October 15 of each year,
commencing October 15, 2004.  We will pay cash interest on overdue principal at
1% per annum in excess of such rate, and we will pay interest on overdue
installments of cash interest at such higher rate to the extent lawful.

Optional Redemption

     Except as set forth in the next paragraph, the Notes will not be redeemable
at our option prior to April 15, 2004. After April 15, 2004, we may redeem the
Notes, in whole or in part, on not less than 30, nor more than 60, days prior
notice, at the following redemption prices (expressed as percentages of
principal amount at maturity), plus accrued and unpaid interest, if any, to the
redemption date (subject to the right of holders of record on the relevant
record date to receive interest, if any, due on the relevant interest payment
date), if redeemed during the 12-month period commencing on April 15 of the
years set forth below:

Year                                                     Redemption Price
- ----                                                     ----------------
2004................................................          105.813%
2005................................................          103.875%
2006................................................          101.938%
2007 and thereafter.................................          100.000%


     In addition, at any time and from time to time prior to April 15, 2002, we
may redeem up to a maximum of 35% of the aggregate principal amount at maturity
of the Notes with the proceeds of one or more Equity Offerings by us, at a
redemption price equal to 111 5/8% of the Accreted Value on the redemption date;
provided, however, that, after giving effect to any such redemption at least 65%
of the aggregate principal amount at maturity of the Notes remains outstanding.
In addition, any such redemption shall be made within 60 days of such Equity
Offering upon not less than 30 nor more than 60 days notice mailed to each
holder of Notes being redeemed and otherwise in accordance with the procedures
set forth in the Indenture.

                                      -82-
<PAGE>

Selection

     In the case of any partial redemption, selection of the Notes for
redemption will be made by the Trustee on a pro rata basis, by lot or by such
other method as the Trustee in its sole discretion shall deem to be fair and
appropriate, although Notes in denominations of $1,000 or less will not be
redeemed in part. If any Note is to be redeemed in part only, the notice of
redemption relating to such Note shall state the portion of such Note to be
redeemed. A new Note equal to the unredeemed portion of such Note will be issued
in the name of the holder upon cancellation of the original Note.

Ranking

     The Indebtedness evidenced by the Notes:

          .    is our unsecured Senior Subordinated Indebtedness;

          .    is subordinated in right of payment, as set forth in the
               Indenture, to all of our existing and future Senior Indebtedness;

          .    is pari passu in right of payment with all of our existing and
               future Senior Subordinated Indebtedness;

          .    is senior in right of payment to all of our existing and future
               Subordinated Indebtedness; and

          .    is effectively subordinated to any of our Secured Indebtedness
               and any Senior Indebtedness of our Subsidiaries to the extent of
               the value of the assets securing such Indebtedness.

     The Notes are guaranteed by TeleCorp Communications, one of our
Subsidiaries, and may in the future be guaranteed by certain other of our
Subsidiaries that Incur Indebtedness. The Indebtedness evidenced by the
subsidiary guarantees:

          .    is unsecured Senior Subordinated Indebtedness of each of our
               subsidiary guarantors;

          .    is subordinated in right of payment, as set forth in the
               Indenture, to all existing and future Senior Indebtedness of each
               subsidiary guarantor;

          .    is pari passu in right of payment with all existing and future
               Senior Subordinated Indebtedness of each of our subsidiary
               guarantors;

          .    is senior in right of payment to all existing and future
               Subordinated Indebtedness of each of our subsidiary guarantors;
               and

          .    is effectively subordinated to any Secured Indebtedness of each
               of our subsidiary guarantors and their subsidiaries to the extent
               of the value of the assets securing such Indebtedness.

     Payment from the money or the proceeds of U.S. Government Obligations held
in any defeasance trust described under "--Defeasance," however, is not
subordinated to any Senior Indebtedness or subject to the restrictions described
within this offer.

     We conduct substantially all of our operations through our Subsidiaries.
Claims of creditors of such Subsidiaries, including trade creditors, and claims
of preferred stockholders, if any, of such Subsidiaries generally will have
priority with respect to the assets and earnings of such Subsidiaries over the
claims of our creditors, including holders of the Notes. The Notes, therefore,
are effectively subordinated to creditors, including trade creditors, and
preferred stockholders, if any, of our Subsidiaries. As of March 31, 1999, on a
pro forma basis after giving effect to the Transactions, the total liabilities
of our Subsidiaries would have been approximately $512.1 million, including
trade payables. Although the Indenture contains limitations on the Incurrence of
Indebtedness by, and the issuance of preferred stock of, certain of our
Subsidiaries, such limitations are subject to a number of significant
qualifications.

     As of March 31, 1999, on a pro forma basis after giving effect to the
Transactions:

          .    with respect to us,

                                      -83-
<PAGE>

               .    our outstanding Senior Indebtedness would have been $225.0
                    million (exclusive of unused commitments under the Credit
                    Agreement and additional senior indebtedness of our
                    subsidiaries), all of which would have been Secured
                    Indebtedness;

               .    we would have had no outstanding Senior Subordinated
                    Indebtedness other than the Notes; and

               .    our outstanding Indebtedness that would have been
                    subordinate or junior in right of payment to the Notes would
                    have been $40.5 million, including $0.5 million of interest
                    paid in kind;

          .    with respect to our subsidiary guarantors,

               .    the outstanding debt of our subsidiary guarantors would have
                    been $225.0 million (consisting entirely of a guarantee of
                    Indebtedness under the Credit Agreement);

               .    our subsidiary guarantors would have had no Senior
                    Subordinated Indebtedness outstanding other than the
                    Subsidiary Guarantee;

               .    our subsidiary guarantors would have had no outstanding
                    Indebtedness that would be subordinate or junior in right of
                    payment to the Subsidiary Guarantee; and

          .    with respect to our Subsidiaries that will not guarantee the
               Notes,

               .    the outstanding Indebtedness of the Subsidiaries that will
                    not guarantee the Notes would have been $242.5 million,
                    consisting of $20.7 million of FCC Debt, which is shown
                    on our balance sheet net of discounts of $3.2 million
                    reflecting the below market interest rates on the debt,
                    and $225.0 million of guarantees of Indebtedness under the
                    Credit Agreement;

               .    our Subsidiaries that will not guarantee the Notes would
                    have had total liabilities of $320.8 million, consisting of
                    $20.7 million, of FCC Debt, $24.8 million of trade
                    payables, $4.1 million of accrued and other expenses and
                    $274.4 million of intercompany amounts payable. The FCC
                    Debt is shown on our balance sheet net of discounts of $3.2
                    million reflecting the below market interest rates on the
                    debt.

     Although the Indenture limits the amount of additional Indebtedness which
we may Incur, under certain circumstances the amount of such Indebtedness could
be substantial and, in any case, such Indebtedness may be Senior Indebtedness.
See "--Certain Covenants--Limitation on Incurrence of Indebtedness."

     "Senior Indebtedness" means the principal of, premium (if any) and accrued
and unpaid interest (including interest accruing on or after our filing of any
petition in bankruptcy or for our reorganization, regardless of whether or not a
claim for post-filing interest is allowed in such proceedings) on, and fees and
other amounts owing in respect of Bank Indebtedness and all of our other
Indebtedness, including FCC Debt, whether outstanding on the date of the
Indenture or thereafter Incurred, unless in the instrument creating or
evidencing the same or under which the same is outstanding it is provided that
such obligations are not superior in right of payment to the Notes; provided,
however, that Senior Indebtedness shall not include:

          .    any of our obligations to any of our Subsidiaries;

          .    any liability for federal, state, local or other taxes that we
               owe;

          .    any accounts payable or other liability to trade creditors
               arising in the ordinary course of business (including guarantees
               of or instruments evidencing such liabilities);

          .    any of our Indebtedness or obligations, and any accrued and
               unpaid interest in respect of such Indebtedness or obligations,
               that by its terms is subordinate or junior in any respect to any
               of our other Indebtedness or obligations, including any of our
               Senior Subordinated Indebtedness and any of our Subordinated
               Indebtedness;

          .    any obligations with respect to any Capital Stock; or

          .    any Indebtedness Incurred in violation of the Indenture.

                                      -84-
<PAGE>

     "Senior Indebtedness" of any our subsidiary guarantors has a correlative
meaning.

     Only Senior Indebtedness will rank senior to the Notes in accordance with
the provisions of the Indenture. The Notes will in all respects rank pari passu
with all of our other Senior Subordinated Indebtedness. We have agreed in the
Indenture that we will not Incur, directly or indirectly, any Indebtedness which
is subordinate or junior in ranking in any respect to Senior Indebtedness unless
such Indebtedness is Senior Subordinated Indebtedness or is expressly
subordinated in right of payment to Senior Subordinated Indebtedness. Unsecured
Indebtedness is not deemed to be subordinate or junior to Secured Indebtedness
merely because it is unsecured.

     We may not pay principal of, premium, if any, or interest on, the Notes or
make any deposit under the provisions described under "--Defeasance" and may not
otherwise repurchase, redeem or otherwise retire any Notes (collectively, "pay
the Notes"), other than payments made with money or U.S. Government Obligations
previously deposited in the defeasance trust described under "--Defeasance," if:

     (1) any Designated Senior Indebtedness is not paid when due; or

     (2) any other default on such Designated Senior Indebtedness occurs and the
         maturity of such Designated Senior Indebtedness is accelerated in
         accordance with its terms

unless, in either case:

     (x) the default has been cured or waived and any such acceleration has been
         rescinded; or

     (y) such Designated Senior Indebtedness has been paid in full.

     We may pay the Notes without regard to the foregoing, however, if we and
the Trustee receive written notice approving such payment from the
Representative of the Designated Senior Indebtedness with respect to whichever
of the events set forth in clause (1) or (2) of the immediately preceding
sentence has occurred and is continuing. During the continuance of any default
(other than a default described in clause (1) or (2) of the second preceding
sentence) with respect to any Designated Senior Indebtedness under which the
maturity may be accelerated immediately without further notice (except such
notice as may be required to effect such acceleration) or upon the expiration of
any applicable grace periods, we may not pay the Notes for a period (a "Payment
Blockage Period") commencing upon the receipt by the Trustee (with a copy to us)
of written notice (a "Blockage Notice") of such default from the Representative
of such Designated Senior Indebtedness specifying an election to effect a
Payment Blockage Period and ending 179 days thereafter (or earlier if such
Payment Blockage Period is terminated:

          .  by written notice to the Trustee and us from the Person or Persons
             who gave such Blockage Notice;

          .  by repayment in full of such Designated Senior Indebtedness; or

          .  because the default giving rise to such Blockage Notice is no
             longer continuing).

Despite the provisions described in the immediately preceding sentence (but
subject to the provisions contained in the first two sentences of this
paragraph), unless the holders of such Designated Senior Indebtedness or the
Representative of such holders have accelerated the maturity of such Designated
Senior Indebtedness, we may resume payments on the Notes after the end of such
Payment Blockage Period.

     Not more than one Blockage Notice may be given in any period of 360
consecutive days, irrespective of the number of defaults with respect to
Designated Senior Indebtedness during such period. However, if any Blockage
Notice within such 360-day period is given by or on behalf of any holders of
Designated Senior Indebtedness other than the Bank Indebtedness, the
Representative of the Bank Indebtedness may give another Blockage Notice within
such period. In no event, however, may the total number of days during which any
Payment Blockage Period or Payment Blockage Periods is or are in effect exceed
179 days in the aggregate during any period of 360 consecutive days. For
purposes of this paragraph, no default or event of default that existed or was
continuing on the date of the commencement of any Payment Blockage Period with
respect to the Designated Senior Indebtedness initiating such Payment Blockage
Period shall be, or be made, the basis of the commencement of a subsequent
Payment Blockage Period by the Representative of such Designated Senior
Indebtedness, whether or not within a period of 360 consecutive days, unless
such default or event of default shall have been cured or waived for a period of
not less than 90 consecutive days.

                                      -85-
<PAGE>

     Upon any payment or distribution of our assets to creditors upon our total
or partial liquidation or our total or partial dissolution or in a bankruptcy,
reorganization, insolvency, receivership or similar proceeding relating to us or
our property:

          .  the holders of our Senior Indebtedness will be entitled to receive
             payment in full in cash of such Senior Indebtedness before
             Noteholders are entitled to receive any payment of principal of, or
             interest on, the Notes; and

          .  until such Senior Indebtedness is paid in full, any payment or
             distribution to which Noteholders would be entitled but for the
             subordination provisions of the Indenture will be made to holders
             of such Senior Indebtedness as their interests may appear, except
             that Noteholders may receive shares of stock and any debt
             securities that are subordinated to such Senior Indebtedness and
             any securities exchanged for such Senior Indebtedness to at least
             the same extent as the Notes.

If a distribution is made to Noteholders that, due to the subordination
provisions of the Indenture, should not have been made to them, such Noteholders
will be required to hold such distribution in trust for the holders of our
Senior Indebtedness and pay it over to them as their interests may appear.

     If payment of the Notes is accelerated because of an Event of Default, we
or the Trustee shall promptly notify the holders of the Designated Senior
Indebtedness or their Representative of the acceleration. If any Designated
Senior Indebtedness is outstanding, we may not pay the Notes until five Business
Days after such holders or the Representative of the Designated Senior
Indebtedness receive notice of such acceleration and, thereafter, may pay the
Notes only if the subordination provisions of the Indenture otherwise permit
payment at that time.

     By reason of the subordination provisions in the Indenture, in the event of
insolvency, our creditors who are holders of our Senior Indebtedness may recover
more, ratably, than the Noteholders.  Our creditors who are not holders of our
Senior Indebtedness or of our Senior Subordinated Indebtedness (including the
Notes) may recover less, ratably, than holders of our Senior Indebtedness and
may recover more, ratably, than the holders of our Subordinated Indebtedness.

     The subordination provisions in the Indenture will not apply to payments
made with money or U.S. Government Obligations previously deposited in the
defeasance trust described under "--Defeasance."

Subsidiary Guarantees

     Our subsidiary guarantor and certain of our future subsidiaries, as
described below, as primary obligors and not merely as sureties, jointly and
severally, irrevocably and unconditionally guarantee on an unsecured senior
subordinated basis the performance and full and punctual payment when due,
whether at Stated Maturity, by acceleration or otherwise, of all of our
obligations under the Indenture and the Notes, whether for payment of principal
of, or interest on, or liquidated damages in respect of, the Notes, expenses,
indemnification or otherwise (all such obligations guaranteed by the subsidiary
guarantors being called the "Guaranteed Obligations") by executing a Subsidiary
Guarantee. Our subsidiary guarantors agree to pay, in addition to the amount
stated above, any and all costs and expenses, including reasonable counsel fees
and expenses, incurred by the Trustee or the holders of Notes in enforcing any
rights under the Subsidiary Guarantees. Each Subsidiary Guarantee is limited in
amount to an amount not to exceed the maximum amount that can be guaranteed by
the applicable subsidiary guarantor without rendering the Subsidiary Guarantee,
as it relates to such subsidiary guarantor, voidable under applicable law
relating to fraudulent conveyance or fraudulent transfer or similar laws
affecting the rights of creditors generally. We will cause each Restricted
Subsidiary that Incurs Indebtedness to become a subsidiary guarantor; provided
that we will not cause any Special Purpose Subsidiary to become a subsidiary
guarantor unless such Special Purpose Subsidiary Incurs Indebtedness other than
Indebtedness under the Credit Agreement (or any Refinancing Indebtedness
Incurred to Refinance any such Indebtedness) or FCC Debt. See "--Certain
Covenants--Future Subsidiary Guarantors."

     The obligations of each of our subsidiary guarantors under its Subsidiary
Guarantee are senior subordinated obligations. As such, the rights of
Noteholders to receive payment from our subsidiary guarantor under its
Subsidiary Guarantee are subordinated in right of payment to the rights of
holders of Senior Indebtedness of such subsidiary guarantor. The terms of the
subordination provisions described under "--Ranking" with respect to our
obligations under the Notes apply equally to each of our subsidiary guarantors
and the obligations of such subsidiary guarantor under its Subsidiary Guarantee.

     Each Subsidiary Guarantee is a continuing guarantee and shall:

          .  remain in full force and effect until payment in full of all the
             Guaranteed Obligations;

                                      -86-
<PAGE>

          .  be binding upon each of our subsidiary guarantors and its
             successors; and

          .  inure to the benefit of and be enforceable by the Trustee, the
             holders of the Notes and their successors, transferees and assigns.

     The Indenture provides that upon the merger or consolidation of our
subsidiary guarantors with or into any Person, other than us, any of our
Subsidiaries or any of our Affiliates, in a transaction in which such subsidiary
guarantor is not the surviving entity of such merger or consolidation, such
subsidiary guarantor shall be released and discharged from its obligations under
its Subsidiary Guarantee. The Indenture also provides that if we or any of our
Subsidiaries sell all the Capital Stock of any of our subsidiary guarantors,
including by issuance or otherwise, other than to us, to any of our Subsidiaries
or to any of our Affiliates, in a transaction constituting an Asset Disposition
(or which, but for the provisions of clause (3) of such term, would constitute
an Asset Disposition) and:

  (1) the Net Available Proceeds from such Asset Disposition are used in
      accordance with the covenant described under "--Certain Covenants--
      Limitation on Certain Asset Dispositions;" or

  (2) we deliver to the Trustee an Officers' Certificate to the effect that the
      Net Available Proceeds from such Asset Disposition will be used in
      accordance with the covenant described under "--Certain Covenants--
      Limitation on Certain Asset Dispositions" within the time limits specified
      by such covenant,

then such subsidiary guarantor shall be released and discharged from its
obligations under its Subsidiary Guarantee upon such use, in the case of clause
(1) above or upon such delivery, in the case of clause (2) above. In addition,
any of our subsidiary guarantors that becomes our subsidiary guarantor as a
consequence of its guarantee of certain Indebtedness permitted under the
Indenture and that is released and discharged from such guarantee will be
released and discharged from its Subsidiary Guarantee upon delivery of an
Officers' Certificate certifying such release and discharge from such guarantee
to the Trustee.

Change of Control

     Upon the occurrence of any of the following events (each a "Change of
Control"), each holder of Notes will have the right to require us to repurchase
all or any part of such holder's Notes at a purchase price in cash equal to (1)
101% of the Accreted Value on the Purchase Date, if such date is on or before
April 15, 2004, or (2) 101% of the principal amount at maturity, plus accrued
and unpaid interest, if any, to the Purchase Date (subject to the right of
holders of record on the relevant record date to receive interest due on the
relevant interest payment date), if such date is after April 15, 2004:

          .  any "person" or "group" (as such terms are used in Sections 13(d)
             and 14(d) of the Exchange Act), other than a Permitted Holder or
             Permitted Holders or a person or group controlled by a Permitted
             Holder or Permitted Holders, becomes the "beneficial owner" (as
             defined in Rules 13d-3 and 13d-5 under the Exchange Act, except
             that a person shall be deemed to have "beneficial ownership" of all
             such securities that such person has the right to acquire within
             one year, upon the happening of an event or otherwise) directly or
             indirectly, of our securities representing 50% or more of the
             combined voting power of our then outstanding Voting Stock;

          .  the following individuals cease for any reason to constitute more
             than a majority of the number of directors then serving on our
             Board: individuals who, on April 23, 1999, constituted our Board
             and any new director (other than a director whose initial
             assumption of office is in connection with an actual or threatened
             election contest, including, but not limited to, a consent
             solicitation relating to the election of our directors) whose
             appointment or election by our Board or nomination for election by
             our stockholders was approved by the vote of at least two-thirds of
             the directors then still in office or whose appointment, election
             or nomination was previously so approved or recommended or made in
             accordance with the terms of the Stockholders' Agreement; or

          .  our stockholders shall approve any Plan of Liquidation (whether or
             not otherwise in compliance with the provisions of the Indenture).

     Within 30 days following any Change of Control, we will be required to mail
a notice to each holder of the Notes, with a copy to the Trustee (the "Change of
Control Offer"), stating that we are commencing an Offer to Purchase all Old
Notes at a purchase price in cash equal to (1) 101% of the Accreted Value on the
Purchase Date, if such date is on or before April 15, 2004, or (2) 101% of the
principal amount at maturity, plus accrued and unpaid interest, if any, to the
Purchase Date (subject to the right of holders of record on the relevant record
date to receive interest due on the relevant interest payment date), if such
date is after April 15, 2004.

                                      -87-
<PAGE>

     We will not be required to make a Change of Control Offer upon a Change of
Control if a third party makes the Change of Control Offer in the manner, at the
times and otherwise in compliance with the requirements set forth in the
Indenture applicable to a Change of Control Offer made by us and purchases all
Notes validly tendered and not withdrawn under such Change of Control Offer.

     We will be required to comply, to the extent applicable, with the
requirements of Section 14(e) of the Exchange Act and any other securities laws
or regulations in connection with the repurchase of the Notes under this
covenant. To the extent that the provisions of any securities laws or
regulations conflict with provisions of this covenant, we will be required to
comply with the applicable securities laws and regulations and will not be
deemed to have breached our obligations under this covenant by virtue of our
compliance with such securities laws and regulations.

     If, at the time of a Change of Control, the terms of the Bank Indebtedness
restrict or prohibit the repurchase of Notes under this covenant, then, prior to
the mailing of the notice to holders of the Notes as provided in the immediately
following paragraph, but in any event within 30 days following any Change of
Control, we will be required to:

          .  repay in full all Bank Indebtedness; or

          .  obtain the requisite consent under the agreements governing such
             Bank Indebtedness to permit the repurchase of the Notes as required
             by this covenant.

     The Change of Control purchase feature is a result of negotiations between
us and the initial purchasers of the Old Notes. We have no present intention to
engage in a transaction involving a Change of Control, although it is possible
that we may decide to do so in the future. Subject to the limitations described
under "--Certain Covenants," we could, in the future, enter into certain
transactions, including acquisitions, refinancings or other recapitalizations,
that would not constitute a Change of Control under the Indenture, but that
could increase the amount of Indebtedness outstanding at such time or otherwise
affect our capital structure or credit ratings. Restrictions on our ability to
Incur additional Indebtedness are contained in the covenant described under
"Certain Covenants--Limitation on Incurrence of Indebtedness." Such restrictions
may only be waived with the consent of the holders of a majority in principal
amount at maturity of the Notes then outstanding. Except for the limitations
contained in such covenants, however, the Indenture does not contain any
covenants or provisions that may afford holders of the Notes protection in the
event of a highly leveraged transaction.

     The occurrence of certain of the events that would constitute a Change of
Control would constitute a default under the Credit Agreement. Our future Senior
Indebtedness may also contain prohibitions of certain events which would
constitute a Change of Control or require such Senior Indebtedness to be
repurchased upon a Change of Control. Moreover, the exercise by holders of the
Notes of their right to require us to repurchase the Notes could cause a default
under such Senior Indebtedness, even if the Change of Control itself does not,
due to the financial effect of such repurchase on us. Finally, our ability to
pay cash to holders of the Notes upon a repurchase may be limited by our then
existing financial resources. There can be no assurance that sufficient funds
will be available when necessary to make any required repurchases. The
provisions of the Indenture related to our obligation to make a Change of
Control Offer as a result of a Change of Control may be waived or modified with
the written consent of the holders of a majority in principal amount at maturity
of the Notes.

Certain Covenants

     The Indenture contains certain covenants including, among others, the
following:

     Limitation on Incurrence of Indebtedness. The Indenture provides that we
will not, and will not cause or permit any Restricted Subsidiary to, directly or
indirectly, Incur any Indebtedness (including Acquired Indebtedness), except:

     (1)  Indebtedness of us or any of our subsidiary guarantors if, immediately
          after giving effect to the Incurrence of such Indebtedness and the
          receipt and application of the net proceeds therefrom (including,
          without limitation, the application or use of the net proceeds
          therefrom to repay Indebtedness, consummate an Asset Acquisition or
          make any Restricted Payment):

          (a)  the ratio of (x) Total Consolidated Indebtedness to (y)
               Annualized Pro Forma Consolidated Operating Cash Flow would be
               less than:

                    7.0 to 1.0, if the Indebtedness is to be Incurred prior to
                    April 1, 2005; or

                    6.0 to 1.0 if the Indebtedness is to be Incurred on or after
                    April 1, 2005;

                                      -88-
<PAGE>

               or

          (b)  in the case of any Incurrence of Indebtedness prior to April 1,
               2005 only, Total Consolidated Indebtedness would be equal to or
               less than 75% of Total Invested Capital;

     (2)  Bank Indebtedness of us and our Restricted Subsidiaries in an
          aggregate principal amount not to exceed $600 million;

     (3)  Indebtedness of us and our Restricted Subsidiaries outstanding from
          time to time under any Vendor Credit Arrangement;

     (4)  Indebtedness owed by us to any Restricted Subsidiary or Indebtedness
          owed by a Restricted Subsidiary to us or another Restricted
          Subsidiary; provided, however, that, upon either (a) the transfer or
          other disposition by such Restricted Subsidiary or us of any
          Indebtedness so permitted under this clause (4) to a Person other than
          us or another Restricted Subsidiary or (b) the issuance (other than of
          directors' qualifying shares), sale, transfer or other disposition of
          shares of Capital Stock or other ownership interests (including by
          consolidation or merger) of such Restricted Subsidiary to a Person
          other than us or another such Restricted Subsidiary, the exception
          provided by this clause (4) shall no longer be applicable to such
          Indebtedness and such Indebtedness shall be deemed to have been
          Incurred at the time of any such issuance, sale, transfer or other
          disposition, as the case may be;

     (5)  Indebtedness of us or any Restricted Subsidiary under any Hedging
          Agreement to the extent entered into to protect us or such Restricted
          Subsidiary from fluctuations in interest rates on any other
          Indebtedness permitted under the Indenture (including the Notes),
          currency exchange rates or commodity prices and not for speculative
          purposes;

     (6)  Refinancing Indebtedness Incurred to Refinance any Indebtedness
          Incurred under the prior clause (1) or (3) above, the Notes or the
          Subsidiary Guarantees;

     (7)  Indebtedness of us under the Notes and Indebtedness of our subsidiary
          guarantors under the Subsidiary Guarantees, in each case Incurred in
          accordance with the Indenture;

     (8)  Capital Lease Obligations of us or any Restricted Subsidiary in an
          aggregate principal amount not in excess of $25.0 million at any time
          outstanding;

     (9)  FCC Debt assumed in connection with the Digital Acquisition or the
          Wireless 2000 Acquisition;

     (10) Indebtedness of us or any Restricted Subsidiary consisting of a
          guarantee of Indebtedness of us or a Restricted Subsidiary that was
          permitted to be Incurred by another provision of this covenant;

     (11) Indebtedness of us or any Restricted Subsidiary in respect of
          statutory obligations, performance, surety or appeal bonds or other
          obligations of a like nature Incurred in the ordinary course of
          business;

     (12) Indebtedness of a Restricted Subsidiary existing at the time we
          acquired such Restricted Subsidiary (other than Indebtedness Incurred
          in connection with, or in contemplation of, the transaction or series
          of related transactions in which we acquired such Restricted
          Subsidiary); provided, however, that on the date we acquired such
          Restricted Subsidiary, we would have been able to Incur $1.00 of
          additional Indebtedness under clause (1) above after giving effect to
          the Incurrence of such Indebtedness under this clause (12) and the
          acquisition of such Restricted Subsidiary and Refinancing Indebtedness
          Incurred by us or such Restricted Subsidiary in respect of
          Indebtedness Incurred by such Restricted Subsidiary under this clause
          (12); and

     (13) Indebtedness of us not otherwise permitted to be Incurred under
          clauses (1) through (12) above which, together with any other
          outstanding Indebtedness Incurred under this clause (13), has an
          aggregate principal amount not in excess of $75 million at any time
          outstanding.

     Indebtedness of a Person existing at the time such Person becomes a
Restricted Subsidiary or which a Lien on an asset we or a Restricted Subsidiary
acquired secures (whether or not such Indebtedness is assumed by the acquiring
person) shall be deemed Incurred at the time the Person becomes a Restricted
Subsidiary or at the time of the asset acquisition, as the case may be.

     For purposes of determining compliance with this covenant:

                                      -89-
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     (1)  if an item of Indebtedness meets the criteria of more than one of the
          categories of Indebtedness permitted under clauses (1) through (13)
          above, in our sole discretion, we may classify such item of
          Indebtedness in any manner that complies with this covenant and may
          from time to time reclassify such items of Indebtedness in any manner
          that would comply with this covenant at the time of such
          reclassification;

     (2)  Indebtedness permitted by this covenant need not be permitted solely
          by reference to one provision permitting such Indebtedness but may be
          permitted in part by one such provision and in part by one or more
          other provisions of this covenant permitting such Indebtedness;

     (3)  if Indebtedness meets the criteria of more than one of the types of
          Indebtedness described in this covenant, in our sole discretion, we
          may classify such Indebtedness and only be required to include the
          amount of such Indebtedness in one of such clauses; and

     (4)  accrual of interest (including interest paid-in-kind) and the
          accretion of accreted value will not be deemed to be an Incurrence of
          Indebtedness for purposes of this covenant.

  Despite any other provision of this covenant:

     (1)  the maximum amount of Indebtedness that we or any Restricted
          Subsidiary may Incur under this covenant shall not be deemed to be
          exceeded solely as a result of fluctuations in the exchange rates of
          currencies; and

     (2)  Indebtedness Incurred under to the Credit Agreement prior to or on the
          date of the Indenture shall be treated as Incurred under clause (2) of
          the first paragraph of this covenant.

     Limitation on Layered Indebtedness. The Indenture provides that we will
not:

     (1)  directly or indirectly Incur any Indebtedness that by its terms would
          expressly rank senior in right of payment to the Notes and rank
          subordinate in right of payment to any of our other Indebtedness; or

     (2)  cause or permit any of our subsidiary guarantors to, and none of our
          subsidiary guarantors will, directly or indirectly, Incur any
          Indebtedness that by its terms would expressly rank senior in right of
          payment to the Subsidiary Guarantee of such subsidiary guarantor and
          rank subordinate in right of payment to any other Indebtedness of such
          subsidiary guarantor;

provided that no Indebtedness shall be deemed to be subordinated solely by
virtue of being unsecured.

     Limitation on Restricted Payments. The Indenture provides that we will not,
and will not cause or permit any Restricted Subsidiary to, directly or
indirectly, on or prior to December 31, 2002:

     (1)  declare or pay any dividend, or make any distribution of any kind or
          character, whether in cash, property or securities, in respect of any
          class of our Capital Stock, excluding any dividends or distributions
          payable solely in shares of our Qualified Stock or in options,
          warrants or other rights to acquire our Qualified Stock;

     (2)  purchase, redeem or otherwise acquire or retire for value any shares
          of our Capital Stock, any options, warrants or rights to purchase or
          acquire such shares or any securities convertible or exchangeable into
          such shares, other than any such shares of Capital Stock, options,
          warrants, rights or securities that we or a Restricted Subsidiary own;

     (3)  make any Investment, other than a Permitted Investment, in any Person
          other than us or a Restricted Subsidiary; or

     (4)  redeem, defease, repurchase, retire or otherwise acquire or retire for
          value, prior to its scheduled maturity, repayment or any sinking fund
          payment, Subordinated Indebtedness or make any payment of interest or
          premium on, or distribution of any kind or character, whether in cash,
          property or securities, in respect of, the Series A Notes, excluding
          payments of interest or distributions payable solely in additional
          Series A Notes.

Each of the transactions described in clauses (1) through (4), other than any
exception to any such clause, is a "Restricted Payment."

  At any time after December 31, 2002, we will not, and will not cause or permit
any Restricted Subsidiary to, directly or indirectly, make a Restricted Payment
if, at the time of:

                                      -90-
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     (A)  a Default or an Event of Default shall have occurred and be continuing
          at the time of or after giving effect to such Restricted Payment;

     (B)  immediately after giving effect to such Restricted Payment, we could
          not Incur at least $1.00 of additional Indebtedness under clause (1)
          of the covenant described under "--Limitation on Incurrence of
          Indebtedness;" and

     (C)  immediately upon giving effect to such Restricted Payment, the
          aggregate amount of all Restricted Payments declared or made on or
          after April 23, 1999, including any Designation Amount, exceeds the
          sum, without duplication, of:

          (1)  the amount of (x) our Consolidated Cash Flow after December 31,
               2002, through the end of the latest full fiscal quarter for which
               our consolidated financial statements are available preceding the
               date of such Restricted Payment (treated as a single accounting
               period), less (y) 150% of our cumulative Consolidated Interest
               Expense after December 31, 2002, through the end of the latest
               full fiscal quarter for which our consolidated financial
               statements are available preceding the date of such Restricted
               Payment (treated as a single accounting period); plus

          (2)  the aggregate net cash proceeds, other than Excluded Cash
               Proceeds, that we received as a capital contribution in respect
               of Qualified Stock or from the proceeds of a sale of Qualified
               Stock made after April 23, 1999, excluding in each case (x) the
               proceeds from a sale of Qualified Stock to a Restricted
               Subsidiary and (y) the proceeds from a sale of Qualified Stock to
               an employee stock ownership plan or other trust that we or any of
               our Subsidiaries established; plus

          (3)  the aggregate net cash proceeds that we or any Restricted
               Subsidiary received from the sale, disposition or repayment,
               other than to us or a Restricted Subsidiary, of any Investment
               made after the date of the Indenture and constituting a
               Restricted Payment in an amount equal to the lesser of (x) the
               return of capital with respect to such Investment and (y) the
               initial amount of such Investment, in either case, less the cost
               of disposition of such Investment; plus

          (4)  an amount equal to the consolidated Net Investment on the date of
               Revocation made by us and/or any Restricted Subsidiary in any of
               our Subsidiaries that has been designated as an Unrestricted
               Subsidiary after April 23, 1999 upon its redesignation as a
               Restricted Subsidiary in accordance with the covenant described
               under "--Limitation on Designations of Unrestricted
               Subsidiaries."

     For purposes of:

     (1)  the preceding clause (C)(2), the value of the aggregate net cash
          proceeds that we received from, or as a capital contribution in
          connection with, the issuance of Qualified Stock either upon the
          conversion of our convertible Indebtedness or the convertible
          Indebtedness of any of our Restricted Subsidiaries or in exchange for
          our outstanding Indebtedness or the outstanding Indebtedness of any of
          our Restricted Subsidiaries or upon the exercise of options, warrants
          or rights will be the net cash proceeds that we or any Restricted
          Subsidiary received upon the issuance of such Indebtedness, options,
          warrants or rights, plus the incremental amount that we or any
          Restricted Subsidiary received upon the conversion, exchange or
          exercise;

     (2)  the preceding clause (C)(4), the value of the consolidated Net
          Investment on the date of Revocation shall be equal to the Fair Market
          Value of the aggregate amount of our or any Restricted Subsidiary's
          Investments in such of our Subsidiaries on the applicable date of
          Designation; and

     (3)  determining the amount expended for Restricted Payments, cash
          distributed shall be valued at the face amount and property other than
          cash shall be valued at its Fair Market Value on the date we make or a
          Restricted Subsidiary makes such Restricted Payment, as the case may
          be.

     The provisions of this covenant shall not prohibit:

     (1)  the payment of any dividend or distribution within 60 days after the
          date of its declaration, if at the date of declaration the payment
          would comply with the provisions of the Indenture;

     (2)  so long as no Default or Event of Default shall have occurred and be
          continuing, the purchase, redemption, retirement or other acquisition
          of any of our Capital Stock out of the net cash proceeds of the
          substantially concurrent capital contribution to us in connection with
          Qualified Stock or out of the net cash proceeds that we received from
          the substantially concurrent issue or sale, other than to a Restricted
          Subsidiary or to an employee stock ownership plan or

                                      -91-
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          other trust that we or any of our Subsidiaries established, of
          Qualified Stock; provided that (a) any such net cash proceeds shall be
          excluded from clause (C)(2) of the second preceding paragraph and (b)
          such proceeds do not constitute Excluded Cash Proceeds;

     (3)  so long as no Default or Event of Default shall have occurred and be
          continuing, the purchase, redemption, retirement, defeasance or other
          acquisition of our Subordinated Indebtedness made by exchange for or
          conversion into, or out of the net cash proceeds that we received, or
          out of a capital contribution to us in connection with a concurrent
          issue and sale, other than to a Restricted Subsidiary, of:

          .  Qualified Stock, provided that

            .  any such net cash proceeds are excluded from clause (C)(2) of the
               second preceding paragraph,
            .  such proceeds do not constitute Excluded Cash Proceeds, and
            .  such proceeds, if from a sale other than a Public Sale, are not
               applied to optionally redeem the Notes on or prior to April 15,
               2002; or

          .  other of our Subordinated Indebtedness that has an Average Life
             equal to or greater than the Average Life of the Subordinated
             Indebtedness being purchased, redeemed, retired, defeased or
             otherwise acquired and that is subordinated in right of payment to
             the Notes at least to the same extent as the Subordinated
             Indebtedness being purchased, redeemed, retired, defeased or
             otherwise acquired;

     (4)  so long as no Default or Event of Default shall have occurred and be
          continuing, the making of a direct or indirect Investment constituting
          a Restricted Payment in an amount not to exceed the amount of the
          proceeds of a concurrent capital contribution in respect of Qualified
          Stock or from the issue or sale, other than to a Restricted
          Subsidiary, of our Qualified Stock; provided that (a) any such net
          cash proceeds are excluded from clause (C)(2) of the second preceding
          paragraph, (b) such proceeds do not constitute Excluded Cash Proceeds
          and (c) such proceeds, if from a sale other than a Public Sale, are
          not applied to optionally redeem the Notes on or prior to April 15,
          2002;

     (5)  so long as no Default or Event of Default shall have occurred and be
          continuing and so long as, immediately after giving effect to such
          Investment, we could incur at least $1.00 of additional Indebtedness
          under clause (1) of the covenant described under "--Limitation on
          Incurrence of Indebtedness," our making of a direct or indirect
          Investment constituting a Restricted Payment in any Person
          incorporated, formed or created to acquire one or more Qualified
          Licenses through participation in any auction or reauction of Licenses
          conducted by the FCC, in an amount not to exceed $50.0 million at any
          time outstanding; provided that

          .  such Person shall qualify as an "entrepreneur" under the
             Communications Act in the case of any proposed acquisition of
             Qualified Licenses through participation in any auction or
             reauction of C-Block Licenses or F-Block Licenses conducted by the
             FCC; and

          .  we shall have received, prior to making such Investment, from one
             or more Strategic Equity Investors, irrevocable, unconditional
             commitments to purchase our Qualified Stock, at the earliest to
             occur of:

             .  the date that is 30 days after the date on which such Person
                acquires any such Qualified Licenses;

             .  the date that is 30 days after the date on which such Person
                withdraws from such auction or reauction;

             .  the date that is 30 days after the date the FCC terminates such
                auction or reauction; and

             .  the date that is 180 days after the date on which any amounts
                were deposited by or on behalf of such Person in escrow with the
                FCC in connection with such proposed acquisition of Qualified
                Licenses; and

          .  in an amount not less than the amount of such Investment, plus the
             amount of all fees, expenses and other costs incurred in connection
             with such participation ;

          provided further that if at any time the aggregate net cash proceeds
          that such Strategic Equity Investors pay to us shall exceed the amount
          of such Investment plus all fees, expenses and other costs incurred in
          connection with such participation (a) such commitments may terminate
          in accordance with their terms to the extent, but only to the extent,
          of

                                      -92-
<PAGE>

          such excess and (b) we may rescind all or a portion of the payments
          made by the Strategic Equity Investors for such Qualified Stock and
          redeem all or a portion of such Qualified Stock in an amount not
          greater than such excess;

          provided further that:

          .  the aggregate net proceeds that we receive upon the purchase by
             such Strategic Equity Investors of such Qualified Stock are
             excluded from clause (C)(2) of the second preceding paragraph
             unless such Person becomes a Restricted Subsidiary or merges,
             consolidates or amalgamates with or into, or transfers or conveys
             substantially all its assets to us or a Restricted Subsidiary, or
             liquidates into us or a Restricted Subsidiary;

          .  such proceeds shall not constitute Excluded Cash Proceeds; and

          .  such proceeds are not applied to optionally redeem the Notes prior
             to April 15, 2002;

     (6)  so long as no Default or Event of Default shall have occurred and be
          continuing and so long as, immediately after giving effect to such
          Investment, we could Incur at least $1.00 of additional Indebtedness
          under clause (1) of the covenant described under "--Limitation on
          Incurrence of Indebtedness," our making of a direct or indirect
          Investment constituting a Restricted Payment in any Person engaged in
          a Permitted Business in an amount not to exceed $60 million at any
          time outstanding; provided that we shall have received, prior to
          making such Investment, from one or more Strategic Equity Investors,
          aggregate net cash proceeds from capital contributions or the issuance
          or sale of our Capital Stock, other than Disqualified Stock, but
          including Qualified Stock issued upon the conversion of convertible
          Indebtedness or upon the exercise of options, warrants or rights to
          purchase Qualified Stock, in an amount equal to the amount of such
          Investment plus the amount of all fees, expenses and other costs
          incurred in connection with such Investment (regardless of whether or
          not such Investment is consummated); provided further that:

          .  the proceeds that we received as capital contributions from, or the
             purchase of our Capital Stock by, such Strategic Equity Investors
             are excluded from clause (C)(2) of the second preceding paragraph
             unless such Person becomes a Restricted Subsidiary or merges,
             consolidates or amalgamates with or into us or a Restricted
             Subsidiary, or transfers or conveys substantially all its assets to
             us or a Restricted Subsidiary, or liquidates into us or a
             Restricted Subsidiary;

          .  such proceeds shall not constitute Excluded Cash Proceeds; and

          .  such proceeds are not applied to optionally redeem the Notes prior
             to April 15, 2002; or

     (7)  so long as no Default or Event of Default has occurred and is
          continuing, the repurchase, redemption, acquisition or retirement for
          value of any of our Capital Stock held by any member of our management
          or any of our Subsidiaries under any management equity subscription
          agreement, stock option agreement, restricted stock agreement or other
          similar agreement; provided that:

          .  the aggregate amount of such dividends or distributions shall not
             exceed $4.0 million in any twelve-month period;

          .  any unused amount in any twelve-month period may be carried forward
             to one or more future twelve-month periods; and

          .  the aggregate of all unused amounts that may be carried forward to
             any future twelve-month period shall not exceed $16 million.

     Restricted Payments made under clauses (1) and (7) of the immediately
preceding paragraph shall be included when determining available amounts under
clause (C) of the third preceding paragraph, Restricted Payments made under
clauses (5) and (6) of the immediately preceding paragraph shall be included
when determining available amounts under clause (C) of the third preceding
paragraph unless, after giving effect to such Investment, such Person becomes a
Restricted Subsidiary or merges, consolidates or amalgamates with or into us or
a Restricted Subsidiary, or transfers or conveys substantially all its assets to
us or a Restricted Subsidiary, or liquidates into us or a Restricted Subsidiary
and Restricted Payments made under to clauses (2), (3) and (4) of the
immediately preceding paragraph shall not be included when determining available
amounts under clause (C) of the third preceding paragraph.

                                      -93-
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     Limitation on Restrictions Affecting Restricted Subsidiaries. The Indenture
provides that we will not, and will not cause or permit any Restricted
Subsidiary to, directly or indirectly, create or otherwise cause or suffer to
exist any consensual encumbrances or restrictions of any kind on the ability of
any Restricted Subsidiary to:

     (1)  pay, directly or indirectly, dividends, in cash or otherwise, or make
          any other distributions in respect of its Capital Stock or pay any
          Indebtedness or other obligation owed to us or any other Restricted
          Subsidiary;

     (2)  make any Investment in us or any other Restricted Subsidiary; or

     (3)  transfer any of its property or assets to us or any other Restricted
          Subsidiary,

except for such encumbrances or restrictions existing under or by reason of:

     (A)  any agreement in effect on April 23, 1999 as in effect on such date;

     (B)  any agreement relating to any Indebtedness Incurred by such Restricted
          Subsidiary prior to the date on which we acquired such Restricted
          Subsidiary and outstanding on such date and not Incurred in
          anticipation or contemplation of becoming a Restricted Subsidiary;
          provided, however, that such encumbrance or restriction shall not
          apply to any of our property or assets or any property or assets of
          any Restricted Subsidiary other than such Restricted Subsidiary;

     (C)  customary provisions contained in an agreement which has been entered
          into for the sale or disposition of all or substantially all of the
          Capital Stock or assets of a Restricted Subsidiary; provided, however,
          that such encumbrance or restriction is applicable only to such
          Restricted Subsidiary or its property and assets;

     (D)  any agreement effecting a Refinancing or amendment of Indebtedness
          Incurred under any agreement referred to in clause (A) or (B) above;
          provided, however, that the provisions contained in such Refinancing
          or amendment agreement relating to such encumbrance or restriction are
          no more restrictive in any material respect than the provisions
          contained in such agreement referred to in clause (A) or (B) above in
          the reasonable judgment of our Board;

     (E)  the Indenture;

     (F)  applicable law or any applicable rule, regulation or order;

     (G)  customary provisions restricting subletting or assignment of any lease
          governing any leasehold interest of any Restricted Subsidiary;

     (H)  purchase money obligations for property acquired in the ordinary
          course of business that impose restrictions of the type referred to in
          clause (3) of this covenant; and

     (I)  restrictions of the type referred to in clause (3) of this covenant
          contained in security agreements securing Indebtedness of a Restricted
          Subsidiary to the extent that such Liens restrict the transfer of
          property subject to such agreements.

     Limitation on Certain Asset Dispositions. The Indenture provides that we
will not, and will not cause or permit any Restricted Subsidiary to, directly or
indirectly, make any Asset Disposition unless:

     (1)  we or such Restricted Subsidiary, as the case may be, receives
          consideration for such Asset Disposition at least equal to the Fair
          Market Value of the assets sold or disposed of as determined by our
          Board in good faith and evidenced by a resolution of our Board filed
          with the Trustee;

     (2)  other than in the case of a Permitted Asset Swap, not less than 75% of
          the consideration received by us or such Restricted Subsidiary from
          the disposition consists of:

          (A)  cash or Cash Equivalents;

          (B)  the assumption of our Indebtedness or Indebtedness of such
               Restricted Subsidiary, other than non-recourse Indebtedness or
               any Subordinated Indebtedness, or other obligations relating to
               such assets (accompanied by an irrevocable and unconditional
               release of us or such Restricted Subsidiary from all liability on
               the Indebtedness or other obligations assumed); or

                                      -94-
<PAGE>

          (C)  notes or other obligations that we or such Restricted Subsidiary
               received from such transferee or such Restricted Subsidiary
               convert into cash or Cash Equivalents concurrently with the
               receipt of such notes or other obligations (to the extent of the
               cash that we actually received); and

     (3)  all Net Available Proceeds, less any amounts invested within 365 days
          of such Asset Disposition to acquire all or substantially all of the
          assets of, or a majority of the Voting Stock of, an entity primarily
          engaged in a Permitted Business, to make a capital expenditure or to
          acquire other long-term assets that are used or useful in a Permitted
          Business, are applied, on or prior to the 365th day after such Asset
          Disposition, unless and to the extent that we shall determine to make
          an Offer to Purchase, to the permanent reduction and prepayment of any
          of our Senior Indebtedness then outstanding, including a permanent
          reduction of the commitments in respect of such Senior Indebtedness.

     Any Net Available Proceeds from any Asset Disposition which is subject to
the immediately preceding sentence that are not applied as provided in the
immediately preceding sentence shall be used promptly after the expiration of
the 365th day after such Asset Disposition, or earlier if we so elect, to make
an Offer to Purchase Old Notes at a purchase price in cash equal to (a) 100% of
the Accreted Value on the Purchase Date, if such Purchase Date is on or before
April 15, 2004 and (b) 100% of the principal amount at maturity plus accrued and
unpaid interest to the Purchase Date, if such Purchase Date is after April 15,
2004; provided, however, that if we elect or the terms of any other Senior
Subordinated Indebtedness require, an offer may be made ratably to purchase the
Notes and such other Senior Subordinated Indebtedness. Notwithstanding the
foregoing, we may defer making any Offer to Purchase the Old Notes, and any
offer to purchase other Senior Subordinated Indebtedness ratably, until there
are aggregate unutilized Net Available Proceeds from Asset Dispositions
otherwise subject to the two immediately preceding sentences equal to or in
excess of $15.0 million, at which time the entire unutilized Net Available
Proceeds from Asset Dispositions otherwise subject to the two immediately
preceding sentences, and not just the amount in excess of $15.0 million, shall
be applied as required under this paragraph. We may use any remaining Net
Available Proceeds following the completion of the required Offer to Purchase
and any offer to purchase other Senior Subordinated Indebtedness ratably for any
other purpose, subject to the other provisions of the Indenture, and the amount
of Net Available Proceeds then required to be otherwise applied in accordance
with this covenant shall be reset to zero. These provisions will not apply to a
transaction consummated in compliance with the provisions of the Indenture
described under "--Merger, Consolidation and Certain Sales of Assets."

     Pending application as set forth above, the Net Available Proceeds of any
Asset Disposition may be invested in cash or Cash Equivalents or used to reduce
temporarily Indebtedness outstanding under any revolving credit agreement to
which we are a party and under which we have Incurred Indebtedness.

     We must comply, to the extent applicable, with the requirements of Section
14(e) of the Exchange Act and any other securities laws or regulations in
connection with the repurchase of the Notes under this covenant. To the extent
that the provisions of any securities laws or regulations conflict with
provisions of this covenant, we must comply with the applicable securities laws
and regulations and will not be deemed to have breached our obligations under
this covenant.

     Limitation on Transactions with Affiliates. The Indenture provides that we
will not, and will not cause or permit any Restricted Subsidiary to, directly or
indirectly, conduct any business or enter into, renew or extend any transaction
with any of our or their respective Affiliates, including, without limitation,
the purchase, sale, lease or exchange of property, the rendering of any service
or the making of any guarantee, loan, advance or Investment, either directly or
indirectly, unless the terms of such transaction are at least as favorable as
the terms that could be obtained at such time by us or such Restricted
Subsidiary, as the case may be, in a comparable transaction made on an arms-
length basis with a Person that is not such an Affiliate; provided, however,
that:

     (1)  in any transaction involving aggregate consideration in excess of
          $10.0 million, we shall deliver an Officers' Certificate to the
          Trustee stating that a majority of the disinterested directors of our
          Board or the board of such Restricted Subsidiary, as the case may be,
          have determined, in their good faith judgment, that the terms of such
          transaction are at least as favorable as the terms that could be
          obtained by us or such Restricted Subsidiary, as the case may be, in a
          comparable transaction made on an arms-length basis between
          unaffiliated parties; and

     (2)  if the aggregate consideration is in excess of $25.0 million, we shall
          also deliver to the Trustee, prior to the consummation of the
          transaction, the favorable written opinion of a nationally recognized
          accounting, appraisal or investment banking firm as to the fairness of
          the transaction to the holders of the Notes, from a financial point of
          view.

     Despite the foregoing, the restrictions set forth in this covenant shall
not apply to:

     (1)  transactions between or among us and/or any Restricted Subsidiaries;

                                      -95-
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     (2)  any Restricted Payment or Permitted Investment permitted by the
          covenant described under "--Limitation on Restricted Payments;"

     (3)  directors' fees, indemnification and similar arrangements, officers'
          indemnification, employee stock option or employee benefit plans and
          employee salaries and bonuses paid or created in the ordinary course
          of business;

     (4)  any other agreement in effect on the date of the Indenture, as the
          same shall be amended from time to time; provided that any material
          amendment shall be required to comply with the provisions of the
          immediately preceding paragraph;

     (5)  the Acquisitions;

     (6)  transactions with AT&T or any of its Affiliates relating to the
          marketing or provision of telecommunication services or related
          hardware, software or equipment on terms that are no less favorable,
          when taken as a whole, to us such Restricted Subsidiary, as
          applicable, than those available from unaffiliated third parties;

     (7)  transactions involving the leasing or sharing or other use by us or
          any Restricted Subsidiary of communications network facilities
          (including, without limitation, cable or fiber lines, equipment or
          transmission capacity) of any of our Affiliates (such Affiliate being
          a "Related Party") on terms that are no less favorable when taken as a
          whole to us or such Restricted Subsidiary, as applicable, than those
          available from such Related Party to unaffiliated third parties;

     (8)  transactions involving the provision of telecommunication services by
          a Related Party in the ordinary course of its business to us or any
          Restricted Subsidiary, or by us or any Restricted Subsidiary to a
          Related Party, on terms that are no less favorable when taken as a
          whole to us or such Restricted Subsidiary, as applicable, than those
          available from such Related Party to unaffiliated third parties;

     (9)  any sales agency agreements under which an Affiliate has the right to
          market any or all of our products or services or the products or
          services of any of the Restricted Subsidiaries;

     (10) transactions involving the sale, transfer or other disposition of any
          shares of Capital Stock of any Marketing Affiliate; provided that such
          Marketing Affiliate is not engaged in any activity other than the
          registration, holding, maintenance or protection of trademarks and
          such related licensing; and

     (11) customary commercial banking, investment banking, underwriting,
          placement agent or financial advisory fees paid in connection with
          services rendered to us and our subsidiaries in the ordinary course.

     Limitation on our Activities and Activities of the Restricted Subsidiaries.
The Indenture provides that we will not, and will not permit any Restricted
Subsidiary to, engage in any business other than a Permitted Business, except to
such extent as is not material to us and our Restricted Subsidiaries, taken as a
whole.

     Amendments to Securities Purchase Agreement. The Indenture provides that we
will not amend, modify or waive, or refrain from enforcing, any provision of the
Securities Purchase Agreement in any manner that would cause the net cash
proceeds from capital contributions or sales of our Qualified Stock under the
Securities Purchase Agreement to be less than $128.0 million.

     Provision of Financial Information. The Indenture provides that, whether or
not required by the rules and regulations of the SEC, so long as any Notes are
outstanding, we will furnish to the holders of the Notes:

     (1)  all quarterly and annual financial information that would be required
          to be contained in a filing with the SEC on Forms 10-Q and 10-K if we
          were required to file such forms, including a section entitled
          "Management's Discussion and Analysis of Financial Condition and
          Results of Operations" that describes our financial condition and
          results of operations and that of our consolidated Subsidiaries and a
          report on such annual information only by our certified independent
          accountants; and

     (2)  all current reports that would be required to be filed with the SEC on
          Form 8-K if we were required to file such reports, in each case within
          the time period specified in the SEC's rules and regulations.

     In addition, following the consummation of the Exchange Offer whether or
not required by the rules and regulations of the SEC, we will file a copy of all
such information and reports with the SEC for public availability within the
time periods specified in the SEC's rules and regulations (unless the SEC will
not accept such a filing) and make such information available to prospective
investors upon request. In addition, the Company will, for so long as any Notes
remain outstanding, furnish to the

                                      -96-
<PAGE>

holders of Notes, upon request, the information required to be delivered under
Rule 144A(d)(4) of the Securities Act. The Company will also comply with Section
314(a) of the TIA.

  Limitation on Designations of Unrestricted Subsidiaries.   The Indenture
provides that we may designate any of our Subsidiaries (other than an Ineligible
Subsidiary) as an "Unrestricted Subsidiary" under the Indenture (a
"Designation") only if:


  (1) no Default or Event of Default shall have occurred and be continuing at
      the time of or after giving effect to such Designation;

  (2) we would be permitted under the Indenture to make an Investment at the
      time of Designation (assuming the effectiveness of such Designation) in an
      amount (the "Designation Amount") equal to the Fair Market Value of the
      aggregate amount of its Investments in such Subsidiary on such date; and

  (3) except in the case of any of our Subsidiaries in which an Investment is
      being made under, and as permitted by, the third paragraph of the covenant
      described under "--Limitation on Restricted Payments," we would be
      permitted to Incur $1.00 of additional Indebtedness under clause (1) of
      the covenant described under "--Limitation on Incurrence of Indebtedness"
      at the time of Designation (assuming the effectiveness of such
      Designation).

  In the event of any such Designation, we shall be deemed to have made an
Investment constituting a Restricted Payment under the covenant described under
"--Limitation on Restricted Payments" for all purposes of the Indenture in the
Designation Amount.

  The Indenture further provides that we shall not, and shall not permit any
Restricted Subsidiary to, at any time:

  (1) provide direct or indirect credit support for, or a guarantee of, any
      Indebtedness of any Unrestricted Subsidiary including of any undertaking,
      agreement or instrument evidencing such Indebtedness;

  (2) be directly or indirectly liable for any Indebtedness of any Unrestricted
      Subsidiary; or

  (3) be directly or indirectly liable for any Indebtedness which provides that
      the holder of such Indebtedness may upon notice, lapse of time or both
      declare a default on such Indebtedness or cause the payment be accelerated
      or payable prior to its final scheduled maturity upon the occurrence of a
      default with respect to any Indebtedness of any Unrestricted Subsidiary
      (including any right to take enforcement action against such Unrestricted
      Subsidiary), except, in the case of clause (1) or (2) above, to the extent
      permitted under the covenant described under "--Limitation on Restricted
      Payments."

  The Indenture further provides that we may revoke any Designation of a
Subsidiary as an Unrestricted Subsidiary (a "Revocation"), whereupon such
Subsidiary shall then constitute a Restricted Subsidiary, if no Default shall
have occurred and be continuing at the time of and after giving effect to such
Revocation. In the event of any such Revocation, we shall be deemed to continue
to have a permanent Investment in an Unrestricted Subsidiary constituting a
Restricted Payment under the covenant described under "--Limitation on
Restricted Payments" for all purposes under the Indenture in a positive amount
equal to:

  (1) the Fair Market Value of the aggregate amount of our Investments in such
      Subsidiary at the time of such Revocation; less

  (2) the portion proportionate to our equity interest in such Subsidiary of the
      Fair Market Value of the net assets of such Subsidiary at the time of such
      Revocation.

  All Designations and Revocations must be evidenced by a resolution of our
Board delivered to the Trustee certifying compliance with the foregoing
provisions.

  Future Subsidiary Guarantors.  We will cause each Restricted Subsidiary that
Incurs Indebtedness to become our subsidiary guarantor, and, if applicable,
execute and deliver to the Trustee a supplemental indenture in the form set
forth in the Indenture under which such Restricted Subsidiary will guarantee
payment of the Notes; provided that we shall not cause any Special Purpose
Subsidiary to become our subsidiary guarantor unless such Special Purpose
Subsidiary Incurs Indebtedness other than Indebtedness in respect of the Credit
Agreement, or any Refinancing Indebtedness Incurred to Refinance such
Indebtedness, or FCC Debt. Each Subsidiary Guarantee will be limited to an
amount not to exceed the maximum amount that can be guaranteed by that
Restricted Subsidiary without rendering the Subsidiary Guarantee, as it relates
to such Restricted Subsidiary, voidable under applicable law relating to
fraudulent conveyance or fraudulent transfer or similar laws affecting the
rights of creditors generally.

                                      -97-
<PAGE>

Merger, Consolidation and Certain Sales of Assets

  We will not consolidate or merge with or into any Person, or sell, assign,
lease, convey or otherwise dispose of, or cause or permit any Restricted
Subsidiary to consolidate or merge with or into any Person, or to sell, assign,
lease, convey or otherwise dispose of all or substantially all of our assets,
determined on a consolidated basis for us and the Restricted Subsidiaries,
whether as an entirety or substantially an entirety in one transaction or a
series of related transactions, including by way of liquidation or dissolution,
to any Person unless, in each such case:

  (1) the entity formed by or surviving any such consolidation or merger, if
      other than us or such Restricted Subsidiary, as the case may be, or to
      which such sale, assignment, lease, conveyance or other disposition shall
      have been made (the "Surviving Entity"), is a corporation organized and
      existing under the laws of the United States, any state of the United
      States or the District of Columbia;

  (2) the Surviving Entity assumes by supplemental indenture all of our
      obligations on the Notes and under the Indenture;

  (3) immediately after giving effect to such transaction and the use of any net
      proceeds from such transaction on a pro forma basis, we or the Surviving
      Entity, as the case may be, could Incur at least $1.00 of Indebtedness
      under clause (1) of the covenant described under "--Certain Covenants--
      Limitation on Incurrence of Indebtedness;"

  (4) immediately after giving effect to such transaction and treating any
      Indebtedness which becomes our obligation or an obligation of any of our
      Restricted Subsidiaries as a result of such transactions as having been
      Incurred by us or such Restricted Subsidiary, as the case may be, at the
      time of the transaction, no Default or Event of Default shall have
      occurred and be continuing;

  (5) we deliver to the Trustee an Officers' Certificate and an Opinion of
      Counsel, each stating that such merger, consolidation or sale of assets
      and such supplemental indenture, if any, comply with the Indenture; and

  (6) we deliver to the Trustee an Opinion of Counsel to the effect that holders
      of the Notes will not recognize income, gain or loss for federal income
      tax purposes as a result of such merger, consolidation or sale of assets
      and will be subject to federal income tax on the same amounts, in the same
      manner and at the same times as would have been the case if such merger,
      sale or consolidation had not occurred.

The provisions of this paragraph shall not apply to any merger of a Restricted
Subsidiary with or into us or a Wholly Owned Subsidiary or the release of any of
our subsidiary guarantors in accordance with the terms of its Subsidiary
Guarantee and the Indenture in connection with any transaction complying with
the provisions of covenant described under "--Certain Covenants--Limitation on
Certain Asset Dispositions."

  The Indenture provides that we will not permit any of our subsidiary
guarantors to consolidate or merge with or into any Person, or sell, assign,
lease, convey or otherwise dispose of all or substantially all of such
subsidiary guarantor's assets, whether as an entirety or substantially an
entirety in one transaction or a series of related transactions, including by
way of liquidation or dissolution, to any Person unless, in each such case:

  (1) the entity formed by or surviving any such consolidation or merger, if
      other than such subsidiary guarantor, or to which such sale, assignment,
      lease, conveyance or other disposition shall have been made, is a
      corporation organized and existing under the laws of the United States,
      any state of the United States or the District of Columbia;

  (2) such corporation assumes by supplemental indenture all of the obligations
      of our subsidiary guarantors, if any, under its Subsidiary Guarantee;

  (3) immediately after giving effect to such transaction and treating any
      Indebtedness which becomes an obligation of such subsidiary guarantor as a
      result of such transactions as having been Incurred by such subsidiary
      guarantor at the time of the transaction, no Default or Event of Default
      shall have occurred and be continuing; and

  (4) we deliver to the Trustee an Officers' Certificate and an Opinion of
      Counsel, each stating that such merger, consolidation or sale of assets
      and such supplemental indenture, if any, comply with the Indenture.

Defaults

  Each of the following events constitutes an Event of Default under the
Indenture:

                                      -98-
<PAGE>

  (1) a default in any payment of interest on any Note when due and payable,
      whether or not prohibited by the provisions described under "--Ranking,"
      continued for 30 days;

  (2) a default in the payment of the Accreted Value or principal of any Note
      when due and payable at its Stated Maturity, upon required redemption or
      repurchase, upon declaration or otherwise, whether or not such payment is
      prohibited by the provisions described under "--Ranking;"

  (3) our failure to comply with its obligations under the covenant described
      under "--Merger, Consolidation and Certain Sales of Assets;"

  (4) our failure to comply for 30 days after notice with any of its obligations
      under the covenants described under "--Change of Control" or "--Certain
      Covenants" (in each case, other than a failure to purchase the Notes);

  (5) our failure to comply for 60 days after notice with its other agreements
      contained in the Indenture or the Notes;

  (6) our failure or the failure of any Significant Subsidiary to pay any
      Indebtedness within any applicable grace period after final maturity or
      the acceleration of any such Indebtedness by the holders of such
      Indebtedness because of a default if the total amount of such Indebtedness
      unpaid or accelerated exceeds $15.0 million or its foreign currency
      equivalent (the "cross acceleration provision") and such failure continues
      for 10 days after receipt of the notice specified in the Indenture;

  (7) certain events of bankruptcy, insolvency or reorganization of us or a
      Significant Subsidiary (the "bankruptcy provisions");

  (8) the rendering of any final judgment or decree, not subject to appeal, for
      the payment of money in excess of $15.0 million or its foreign currency
      equivalent at the time it is entered against us or a Significant
      Subsidiary and is not discharged, waived or stayed if:

      (A) an enforcement proceeding thereon is commenced by any creditor; or

      (B) such judgment or decree remains outstanding for a period of 60 days
          following such judgment and is not discharged, waived or stayed (the
          "judgment default provision"); or

  (9) any Subsidiary Guarantee ceases to be in full force and effect (except as
      contemplated by the terms of the Indenture) or any of our subsidiary
      guarantors or Person acting by or on behalf of such subsidiary guarantor
      denies or disaffirms such subsidiary guarantor's obligations under the
      Indenture or any Subsidiary Guarantee and such Default continues for 10
      days after receipt of the notice specified in the Indenture.

  The foregoing will constitute Events of Default whatever the reason for any
such Event of Default and whether it is voluntary or involuntary or is effected
by operation of law or under any judgment, decree or order of any court or any
order, rule or regulation of any administrative or governmental body.

  However, a default under clauses (4), (5) or (8) will not constitute an Event
of Default until the Trustee or the holders of at least 25% in aggregate
principal amount at maturity of the Old Notes notify us of the default and we do
not cure such default within the time specified in clauses (4), (5) or (8) after
receipt of such notice.

  If an Event of Default (other than an Event of Default relating to certain
events of our bankruptcy, insolvency or reorganization) occurs and is
continuing, the Trustee or the holders of at least 25% in aggregate principal
amount at maturity of the Old Notes by notice to us may accelerate the maturity
of all the Notes. Upon such an acceleration, the Old Notes will become
immediately due and payable. If an Event of Default relating to certain events
of our bankruptcy, insolvency or reorganization occurs, the principal of and
interest on all the Notes will become immediately due and payable without any
declaration or other act on the part of the Trustee or the holders of the Notes.
Under certain circumstances, the holders of a majority in aggregate principal
amount at maturity of the Old Notes may rescind any such acceleration with
respect to the Notes and its consequences.

  Subject to the provisions of the Indenture relating to the duties of the
Trustee, in case an Event of Default occurs and is continuing, the Trustee will
be under no obligation to exercise any of the rights or powers under the
Indenture at the request or direction of any of the holders of the Notes unless
such holders have offered to the Trustee reasonable indemnity or security
against any loss, liability or expense. Except to enforce the right to receive
payment of principal, premium (if any) or interest when due, no holder of Notes
may pursue any remedy with respect to the Indenture or the Notes unless:

                                      -99-
<PAGE>

  (1) such holder has previously given the Trustee notice that an Event of
      Default is continuing;

  (2) holders of at least 25% in aggregate principal amount at maturity of the
      Old Notes have requested the Trustee in writing to pursue the remedy;

  (3) such holders have offered the Trustee reasonable security or indemnity
      against any loss, liability or expense;

  (4) the Trustee has not complied with such request within 60 days after the
      receipt of the request and the offer of security or indemnity; and

  (5) the holders of a majority in aggregate principal amount at maturity of the
      Old Notes have not given the Trustee a direction inconsistent with such
      request within such 60-day period.

  Subject to certain restrictions, the holders of a majority in aggregate
principal amount at maturity of the Old Notes are given the right to direct the
time, method and place of conducting any proceeding for any remedy available to
the Trustee or of exercising any trust or power conferred on the Trustee. The
Trustee, however, may refuse to follow any direction that conflicts with law or
the Indenture or that the Trustee determines is unduly prejudicial to the rights
of any other holder of Notes or that would involve the Trustee in personal
liability. Prior to taking any action under the Indenture, the Trustee will be
entitled to indemnification satisfactory to it in its sole discretion against
all losses and expenses caused by taking or not taking such action.

  The Indenture provides that, if a Default occurs and is continuing and is
known to the Trustee, the Trustee must mail to each holder of Notes notice of
the Default within the earlier of 90 days after it occurs or 30 days after it is
known to a Trust Officer or written notice of it is received by the Trustee.
Except in the case of a Default in the payment of principal of, premium (if any)
or interest on any Note (including payments under the redemption provisions of
such Note), the Trustee may withhold notice if and so long as a committee of its
Trust Officers in good faith determines that withholding notice is in the
interests of the Noteholders. In addition, we will be required to deliver to the
Trustee, within 120 days after the end of each fiscal year, a certificate
indicating whether the signers know of any Default that occurred during the
previous year.  We will also be required to deliver to the Trustee, within 30
days after the occurrence of such event, written notice of any event which would
constitute certain Events of Default, the status of any such event and the
action we are taking or propose to take in respect of such event.

Amendments and Waivers

  Subject to certain exceptions, the Indenture or the Notes may be amended with
the written consent of the holders of a majority in aggregate principal amount
at maturity of the Notes then outstanding, and any past default or compliance
with any provisions may be waived with the consent of the holders of a majority
in aggregate principal amount at maturity of the Notes then outstanding.
However, without the consent of each holder of an outstanding Note affected, no
amendment may, among other things:

  (1) reduce the amount of the Notes whose holders must consent to an amendment;

  (2) reduce the rate of, or extend the time for payment of, interest or any
      liquidated damages on any Note;

  (3) reduce the principal of, or extend the Stated Maturity of, any Note;

  (4) reduce the premium payable upon the redemption of any Note or change the
      time at which any Note may be redeemed as described under "--Optional
      Redemption;"

  (5) make any Note payable in money other than that stated in the Note;

  (6) make any change to the subordination provisions of the Indenture that
      adversely affects the rights of any holder of Notes;

  (7) impair the right of any holder of Notes to receive payment of principal of
      and interest or any liquidated damages on such holder's Notes on or after
      the due dates for such payment or to institute suit for the enforcement of
      any payment on or with respect to such holder's Notes;

  (8) make any change in the amendment provisions which require the consent of
      each holder of the Notes or in the waiver provisions; or

                                     -100-
<PAGE>

  (9)  modify the Subsidiary Guarantees in any manner adverse to the holders of
       the Notes.

  Without the consent of any holder of the Notes, we and the Trustee may amend
  the Indenture to:

  (1)  cure any ambiguity, omission, defect or inconsistency;

  (2)  provide for the assumption by a successor corporation of our obligations
       under the Indenture;

  (3)  provide for uncertificated Notes in addition to, or in place of,
       certificated Notes (provided that the uncertificated Notes are issued in
       registered form for purposes of Section 163(f) of the Code, or in a
       manner such that the uncertificated Notes are described in Section
       163(f)(2)(B) of the Code);

  (4)  make any change in the subordination provisions of the Indenture that
       would limit or terminate the benefits available to any holder of our
       Senior Indebtedness or any representative of such holder under such
       subordination provisions;

  (5)  add additional guarantees with respect to the Notes;

  (6)  secure the Notes;

  (7)  add to our covenants for the benefit of the Noteholders;

  (8)  surrender any right or power conferred upon us;

  (9)  make any change that does not adversely affect the rights of any holder
       of the Notes;

  (10) provide for the issuance of the Exchange Notes or Private Exchange Notes,
       subject to the provisions of the Indenture; or

  (11) comply with any requirement of the SEC in connection with the
       qualification of the Indenture under the TIA.

  No amendment may be made to the subordination provisions of the Indenture,
however, that adversely affects the rights of any holder of our Senior
Indebtedness then outstanding unless the holders of such Senior Indebtedness, or
any group or representative of such holders authorized to give a consent,
consent to such change.

  The consent of the Noteholders will not be necessary under the Indenture to
approve the particular form of any proposed amendment. It will be sufficient if
such consent approves the substance of the proposed amendment.

  After an amendment under the Indenture becomes effective, we will be required
to mail to Noteholders a notice briefly describing such amendment. However, the
failure to give such notice to all Noteholders, or any defect in such notice,
will not impair or affect the validity of the amendment.

Transfer and Exchange

  A Noteholder may transfer or exchange Notes in accordance with the Indenture.
Upon any transfer or exchange, the registrar and the Trustee may require a
Noteholder, among other things, to furnish appropriate endorsements and transfer
documents, and we may require a Noteholder to pay any taxes required by law or
permitted by the Indenture. We will not be required to transfer or exchange any
Note selected for redemption or to transfer or exchange any Note for a period of
15 days prior to a selection of Notes to be redeemed. The Notes will be issued
in registered form, and the registered holder of a Note will be treated as the
owner of such Note for all purposes.

Defeasance

  We at any time may terminate all our obligations under the Indenture and the
Notes ("legal defeasance"), except for certain obligations, including
obligations:

     .  relating to the defeasance trust;

     .  to register the transfer or exchange of the Notes;

     .  to replace mutilated, destroyed, lost or stolen Notes; and

                                     -101-
<PAGE>

     .  to maintain a registrar and paying agent in respect of the Notes.

  We at any time may terminate our obligations under:

     .  the covenants described under "--Certain Covenants;"

     .  the operation of the cross acceleration provision, the bankruptcy
        provisions with respect to Significant Subsidiaries and the judgment
        default provision described under "--Defaults;"

     .  clauses (3), (4) and (5) set forth in the first paragraph under "--
        Merger, Consolidation and Certain Sales of Assets" ("covenant
        defeasance").

  In the event that we exercise our legal defeasance option or our covenant
defeasance option, each of our subsidiary guarantors will be released from all
of its obligations with respect to its Subsidiary Guarantee.

  We may exercise our legal defeasance option in spite of our prior exercise of
our covenant defeasance option. If we exercise our legal defeasance option,
payment of the Notes may not be accelerated because of an Event of Default with
respect to our exercise of our legal defeasance option. If we exercise our
covenant defeasance option, payment of the Notes may not be accelerated because
of an Event of Default specified in clause (4), (6), (7) with respect only to
Significant Subsidiaries, (8) with respect only to Significant Subsidiaries or
(9) under "--Defaults" or because of our failure to comply with clause (3), (4)
and (5) set forth in the first paragraph under "--Merger, Consolidation and
Certain Sales of Assets."

  In order to exercise either defeasance option, we must irrevocably deposit in
trust (the "defeasance trust") with the Trustee money or U.S. Government
Obligations for the payment of principal, premium, if any, and interest on the
Notes to redemption or maturity, as the case may be, and must comply with
certain other conditions, including delivery to the Trustee of an Opinion of
Counsel to the effect that holders of the Notes will not recognize income, gain
or loss for federal income tax purposes as a result of such deposit and
defeasance and will be subject to federal income tax on the same amounts and in
the same manner and at the same times as would have been the case if such
deposit and defeasance had not occurred and, in the case of legal defeasance
only, such Opinion of Counsel must be based on a ruling of the Internal Revenue
Service or other change in applicable federal income tax law.

Concerning the Trustee

  Bankers Trust Company serves as the Trustee under the Indenture, and Bankers
Trust Company has been appointed by the Company as Registrar and Paying Agent
with regard to the Notes.

Governing Law

  The Indenture provides that it and the Notes will be governed by, and
construed in accordance with, the laws of the State of New York without giving
effect to applicable principles of conflicts of law to the extent that the
application of the law of another jurisdiction would be required thereby.

Certain Definitions

  Set forth below is a summary of certain of the defined terms used in the
Indenture, which is attached as an exhibit to the registration statement.

  "Accreted Value" means, as of any date of determination prior to April 15,
2004, the sum of:

  (1) the initial offering price of each Note; and

  (2) the portion of the excess of the principal amount of each Note over such
      initial offering price which we shall have amortized in accordance with
      GAAP through such date, such amount to be so amortized on a daily basis
      and compounded semiannually on each interest payment date at a rate of 11
      5/8% per annum from the date of the Indenture through the date of
      determination computed on the basis of a 360-day year of twelve 30-day
      months.

  "Acquired Indebtedness" means, with respect to any Person, Indebtedness of
such Person:

                                     -102-
<PAGE>

  (1) existing at the time such Person becomes a Restricted Subsidiary; or

  (2) assumed in connection with the acquisition of assets from another Person,
      including Indebtedness Incurred in connection with, or in contemplation
      of, such Person becoming a Restricted Subsidiary or such acquisition, as
      the case may be.

  "Acquisitions" means the Digital Acquisition, the Puerto Rico Acquisition and
the Wireless 2000 Acquisition.

  "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by, or under direct or indirect common
control with, any specified Person. For purposes of this definition, "control"
when used with respect to any Person means the power to direct the management
and policies of such Person, directly or indirectly, whether through the
ownership of voting securities, by contract or otherwise; and the terms
"controlling" and "controlled" have meanings correlative to the foregoing.

  "Annualized Pro Forma Consolidated Operating Cash Flow" means Consolidated
Cash Flow for the latest two full fiscal quarters for which our consolidated
financial statements are available multiplied by two. For purposes of
calculating "Consolidated Cash Flow" for any period for purposes of this
definition only:

  (1) any of our Subsidiaries that is a Restricted Subsidiary on the date of the
      transaction giving rise to the need to calculate "Annualized Pro Forma
      Consolidated Operating Cash Flow" (the "Transaction Date") shall be deemed
      to have been a Restricted Subsidiary at all times during such period; and

  (2) any of our Subsidiaries that is not a Restricted Subsidiary on the
      Transaction Date shall be deemed not to have been a Restricted Subsidiary
      at any time during such period.

In addition to and without limitation of the foregoing, for purposes of this
definition only, "Consolidated Cash Flow" shall be calculated after giving
effect on a pro forma basis for the applicable period to, without duplication,
any Asset Dispositions or Asset Acquisitions, including, without limitation, any
Asset Acquisition giving rise to the need to make such calculation as a result
of our or one of the Restricted Subsidiaries, including any Person who becomes a
Restricted Subsidiary as a result of the Asset Acquisition Incurring, assuming
or otherwise being liable for Acquired Indebtedness, occurring during the period
commencing on the first day of such two-fiscal-quarter period to and including
the Transaction Date (the "Reference Period"), as if such Asset Sale or Asset
Acquisition occurred on the first day of the Reference Period.

  "Asset Acquisition" means:

  (1) any purchase or other acquisition, by means of transfer of cash,
      Indebtedness or other property to others or payment for property or
      services for the account or use of others or otherwise, of Capital Stock
      of any Person by us or any Restricted Subsidiary, in either case, under
      which such Person shall become a Restricted Subsidiary or shall be merged
      with or into us or any Restricted Subsidiary; or

  (2) any acquisition by us or any Restricted Subsidiary of the property or
      assets of any Person which constitute all or substantially all of an
      operating unit or line of business of such Person.

  "Asset Disposition" means any sale, transfer or other disposition (including,
without limitation, by merger, consolidation or Sale/Leaseback Transaction) of:

  (1) shares of Capital Stock of any of our Subsidiaries, other than directors'
      qualifying shares;

  (2) any License for the provision of wireless telecommunications services held
      by us or any Restricted Subsidiary, whether by sale of Capital Stock or
      otherwise; or

  (3) any other property or assets of ours or any of our Subsidiaries other than
      in the ordinary course of business;

provided, however, that an Asset Disposition shall not include:

  (A) any sale, transfer or other disposition of shares of Capital Stock,
      property or assets by a Restricted Subsidiary to us or to any other
      Restricted Subsidiary or by us to any Restricted Subsidiary;

  (B) any sale, transfer or other disposition of defaulted receivables for
      collection;

                                     -103-
<PAGE>

  (C) the sale, lease, conveyance or disposition or other transfer of all or
      substantially all of our assets as permitted under "--Covenants--Merger,
      Consolidation and Certain Sales of Assets;"


  (D) any disposition that constitutes a Change of Control; or

  (E) any sale, transfer or other disposition of shares of Capital Stock of any
      Marketing Affiliate; provided that such Marketing Affiliate is not engaged
      in any activity other than the registration, holding, maintenance or
      protection of trademarks and such related licensing; or

  (F) any sale, transfer or other disposition that does not, together with all
      related sales, transfers or dispositions, involve aggregate consideration
      in excess of $5.0 million.

  "AT&T Wireless" means AT&T Wireless PCS Inc., a Delaware corporation.

  "Average Life" means, as of the date of determination, with respect to any
Indebtedness for borrowed money or Preferred Stock, the quotient obtained by
dividing:

  (1) the sum of the products of the number of years from the date of
      determination to the dates of each successive scheduled principal or
      liquidation value payments of such Indebtedness or Preferred Stock,
      respectively, and the amount of such principal or liquidation value
      payments by

  (2) the sum of all such principal or liquidation value payments.

  "Bank Indebtedness" means any and all amounts payable under or in respect of
the Credit Agreement and any Refinancing Indebtedness with respect to the Credit
Agreement, as amended from time to time, including principal, premium, if any,
interest, including interest accruing on or after the filing of any petition in
bankruptcy or for reorganization relating to us whether or not a claim for post-
filing interest is allowed in such proceedings, fees, charges, expenses,
reimbursement obligations, guarantees and all other amounts payable thereunder
or in respect thereof.

  "board" of any Person means the board of directors, management committee or
other governing body of such Person.

  "BTA" means a Basic Trading Area, as defined in 47 C.F.R. (S)24.202.

  "Business Day" means any date which is not a Legal Holiday.

  "C-Block License" means any License in the C block as set forth in parts 1 and
24 of Title 47 of the Code of Federal Regulations.

  "Capital Lease Obligations" of any Person means the obligations to pay rent or
other amounts under a lease of, or other Indebtedness arrangements conveying the
right to use, real or personal property of such Person which are required to be
classified and accounted for as a capital lease or liability on the face of a
balance sheet of such Person in accordance with GAAP. The amount of such
obligations shall be the capitalized amount of such obligations in accordance
with GAAP, and the Stated Maturity of such obligations shall be the date of the
last payment of rent or any other amount due under such lease prior to the first
date upon which such lease may be terminated by the lessee without payment of a
penalty.

  "Capital Stock" of any Person means any and all shares, interests, rights to
purchase, warrants options, participations or other equivalents of or interests
in, however, designated, of corporate stock or other equity participations,
including partnership interests, whether general or limited, of such Person.

  "Cash Equity Investors" means CB Capital Investors, L.P., Equity-Linked
Investors-II, Private Equity Investors III, L.P., Hoak Communications Partners,
L.P., HCP Capital Fund, L.P., Whitney Equity Partners, L.P., J. H. Whitney III,
L.P., Whitney Strategic Partners III, L.P., Entergy Technology Holding Company,
Media/Communications Partners III Limited Partnership, Media/Communications
Investors Limited Partnership, One Liberty Fund III, L.P., One Liberty Fund IV,
L.P., Toronto Dominion Investments, Inc., Northwood Ventures LLC, Northwood
Capital Partners LLC, Gerald Vento, Thomas Sullivan and Gilde International B.V.

  "Cash Equivalents" means:

                                     -104-
<PAGE>

  (1) direct obligations of, or obligations the principal of and interest on
      which are unconditionally guaranteed by, the United States of America (or
      by any agency to the extent such obligations are backed by the full faith
      and credit of the United States of America), in each case maturing within
      one year from the date of such acquisition;

  (2) investments in commercial paper maturing within 365 days from the date of
      such acquisition and having, at such date of acquisition, the highest
      credit rating obtainable from Standard & Poor's Corporation or from
      Moody's Investors Service;

  (3) investments in certificates of deposit, banker's acceptance and time
      deposits maturing within 365 days from the date of such acquisition issued
      or guaranteed by or placed with, and money market deposit accounts issued
      or offered by, any domestic office of any commercial bank organized under
      the laws of the United States of America or any of its States which has a
      combined capital and surplus and undivided profits of not less than
      $500,000,000;

  (4) fully collateralized repurchase agreements with a term of not more than 30
      days for securities described in clause (1) above and entered into with a
      financial institution satisfying the criteria described in clause (3)
      above; and

  (5) money market funds substantially all of whose assets comprise securities
      of the type described in clauses (1) through (3) above.

  "Code" means the Internal Revenue Code of 1986, as amended.

  "Common Stock" of any Person means Capital Stock of such Person that does not
rank prior, as to the payment of dividends or as to the distribution of assets
upon any voluntary or involuntary liquidation, dissolution or winding up of such
Person, to shares of Capital Stock of any other class of such Person.

  "Communications Act" means the Communications Act of 1934, and any similar or
successor Federal statute, and the rules and regulations and published policies
of the FCC thereunder, all as amended and as the same may be in effect from time
to time.

  "Consolidated Cash Flow" of any Person means, for any period, the Consolidated
Net Income of such Person for such period:

  (1) increased, to the extent Consolidated Net Income for such period has been
      reduced thereby, by the sum of, without duplication"

      (A)  Consolidated Interest Expense of such Person for such period; plus

      (B)  Consolidated Income Tax Expense of such Person for such period; plus

      (C)  the consolidated depreciation and amortization expense of such Person
           and its Restricted Subsidiaries for such period; plus

      (D)  any other non-cash charges of such Person and its Restricted
           Subsidiaries for such period except for any non-cash charges that
           represent accruals of, or reserves for, cash disbursements to be made
           in any future accounting period; and

  (2) decreased, to the extent Consolidated Net Income for such period has been
      increased thereby, by any non-cash gains from Asset Dispositions.

  "Consolidated Income Tax Expense" of any Person means, for any period, the
consolidated provision for income taxes of such Person and its Restricted
Subsidiaries for such period calculated on a consolidated basis in accordance
with GAAP.

  "Consolidated Interest Expense" for any Person means, for any period, without
duplication:

  (1) the consolidated interest expense included in a consolidated income
      statement, without deduction of interest or finance charge income, of such
      Person and its Restricted Subsidiaries for such period calculated on a
      consolidated basis in accordance with GAAP, including, without limitation,
      (a) any amortization of debt discount, (b) the net costs under Hedging
      Agreements, (c) all capitalized interest, (d) the interest portion of any
      deferred payment obligation and (e) all amortization of any premiums, fees
      and expenses payable in connection with the Incurrence of any
      Indebtedness; plus

                                     -105-
<PAGE>

  (2) the interest component of Capital Lease Obligations paid, accrued and/or
      scheduled to be paid or accrued, by such Person and its Restricted
      Subsidiaries during such period as determined on a consolidated basis in
      accordance with GAAP.

  "Consolidated Net Income" of any Person means for any period the consolidated
net income (or loss) of such Person and its Restricted Subsidiaries for such
period determined on a consolidated basis in accordance with GAAP; provided,
however, that there shall be excluded therefrom:

  (1) the net income or loss of any Person acquired by such Person or a
      Restricted Subsidiary of such Person in a pooling-of-interests transaction
      for any period prior to the date of such transaction;

  (2) the net income but not loss of any Restricted Subsidiary of such Person
      which is subject to restrictions which prevent or limit the payment of
      dividends or the making of distributions to such Person to the extent of
      such restrictions, regardless of any waiver;

  (3) the net income of any Person that is not a Restricted Subsidiary of such
      Person, except to the extent of the amount of dividends or other
      distributions representing such Person's proportionate share of such other
      Person's net income for such period actually paid in cash to such Person
      by such other Person during such period;

  (4) gains or losses, other than for purposes of calculating Consolidated Net
      Income under clause (c) of the first paragraph under "--Certain Covenants-
      -Limitation on Restricted Payments," on Asset Dispositions by such Person
      or its Restricted Subsidiaries;

  (5) all extraordinary gains, but not, other than for purposes of calculating
      Consolidated Net Income under clause (c) of the first paragraph under "--
      Certain Covenants--Limitation on Restricted Payments," losses, determined
      in accordance with GAAP; and

  (6) in the case of a successor to such Person by consolidation or merger or as
      a transferee of such Person's assets, any earnings or losses of the
      successor corporation prior to such consolidation, merger or transfer of
      assets.

  "Credit Agreement" means the Credit Agreement dated as of July 17, 1998, as
amended, waived or otherwise modified from time to time, among the Company, the
financial institutions named in the Credit Agreement as lenders, The Chase
Manhattan Bank, as Administrative Agent and Issuing Bank, TD Securities (USA)
Inc., as Syndication Agent, and Bankers Trust Company, as Documentation Agent,
except to the extent that any such amendment, waiver or other modification to
the Credit Agreement would be prohibited by the terms of the Indenture, unless
otherwise agreed to by the holders of at least a majority in aggregate principal
amount at maturity of the Notes at the time outstanding.

  "Default" means any event that is, or after notice or lapse of time or both
would become, an Event of Default.

  "Designated Senior Indebtedness of us" means:

  (1) so long as outstanding, Bank Indebtedness; and

  (2) so long as outstanding, any other Senior Indebtedness which has at the
      time of initial issuance an aggregate outstanding principal amount in
      excess of $25.0 million and which has been so designated as Designated
      Senior Indebtedness by our Board at the time of its initial issuance in a
      resolution delivered to the Trustee. "Designated Senior Indebtedness" of
      our subsidiary guarantors has a correlative meaning.

  "Designation" has the meaning set forth under "--Certain Covenants--Limitation
on Designations of Unrestricted Subsidiaries."

  "Designation Amount" has the meaning set forth under "--Certain Covenants--
Limitation on Designations of Unrestricted Subsidiaries."

  "Digital Acquisition" means our purchase by us from Digital PCS of 10 MHz of
F-Block Licenses for the Baton Rouge, Houma, Hammond and Lafayette, Louisiana
BTAs together with related assets.

  "Digital PCS" means Digital PCS, L.L.C.

                                     -106-
<PAGE>

  "Disqualified Stock" of any Person means any Capital Stock of such Person
which, by its terms, or by the terms of any security into which it is
convertible or for which it is exchangeable, or upon the happening of any event,
matures or is mandatorily redeemable, under a sinking fund obligation or
otherwise, or is redeemable at the option of the holder thereof, in whole or in
part, on or prior to the first anniversary of the Stated Maturity of the Notes;
provided, however, that any Capital Stock that would not constitute Disqualified
Stock but for such provisions giving such holders the right to require such
Person to repurchase or redeem such Capital Stock upon the occurrence of an
"asset sale" or "change of control" occurring prior to the first anniversary of
the Stated Maturity of the Notes shall not constitute Disqualified Stock if the
"asset sale" or "change of control" provisions applicable to such Capital Stock
are no more favorable to the holders of such Capital Stock than the provisions
of the covenant described under "Change of Control."

  "Equipment Subsidiary" means TeleCorp Equipment Leasing L.P. and/or any other
of our Wholly Owned Subsidiaries designated as an Equipment Subsidiary under the
Credit Agreement.

  "Equity Offering" means any public or private sale of Qualified Stock that we
make on a primary basis by the Company, including through the issuance or sale
of Qualified Stock to one or more Strategic Equity Investors.

  "Exchange Act" means the Securities Exchange Act of 1934, as amended, and the
rules and regulations promulgated by the SEC thereunder.

  "Exchange Notes" means, collectively, our debt securities that are identical
in all material respects to the Notes, except for transfer restrictions relating
to the Notes, issued in a like aggregate principal amount at maturity of the
Notes originally issued under the Exchange and Registration Rights Agreement.

  "Exchange Offer" means a registered exchange offer for the Notes undertaken by
us under the Exchange and Registration Rights Agreement.

  "Excluded Cash Proceeds" means the first $128 million of net cash proceeds
received by us subsequent to the date of the Indenture from capital
contributions in respect of our Qualified Stock or from the issue or sale, other
than to a Restricted Subsidiary, of Qualified Stock.

  "F-Block License" means any License in the F block as set forth in parts 1 and
24 of Title 47 of the Code of Federal Regulations.

  "Fair Market Value" means, with respect to any asset or property, the price
that could be negotiated in an arm's-length free market transaction, for cash,
between a willing seller and a willing buyer, neither of which is under pressure
or compulsion to complete the transaction. Unless otherwise specified in the
Indenture, Fair Market Value shall be determined by our Board acting in good
faith.

  "FCC" means the Federal Communications Commission, or any other similar or
successor agency of the Federal government administering the Communications Act.

  "FCC Debt" means Indebtedness owed to the United States Treasury Department or
the FCC that is incurred in connection with the acquisition of a License.

  "GAAP" means generally accepted accounting principles, consistently applied,
as in effect from time to time in the United States of America, as set forth in
the opinions and pronouncements of the Accounting Principles Board of the
American Institute of Certified Public Accountants and statements and
pronouncements of the Financial Accounting Standards Board or in such other
statements by such other entity as is approved by a significant segment of the
accounting profession in the United States.

  "Hedging Agreement" means any interest rate, currency or commodity swap
agreement, interest rate, currency or commodity future agreement, interest rate
cap or collar agreement, interest rate, currency or commodity hedge agreement
and any put, call or other agreement designed to protect against fluctuations in
interest rates, currency exchange rates or commodity prices.

  "Holder" or "Noteholder" means the Person in whose name a Note is registered
on the registrar's books.

  "Incur" means, with respect to any Indebtedness or other obligation of any
Person, to create, issue, incur, including by conversion, exchange or otherwise,
assume, guarantee or otherwise become liable in respect of such Indebtedness or
other obligation or the recording, as required under GAAP or otherwise, of any
such Indebtedness or other obligation on the balance sheet of such Person, and
"Incurrence," "Incurred" and "Incurring" shall have meanings correlative to the
foregoing. Indebtedness

                                     -107-
<PAGE>

of any Person or any of its Restricted Subsidiaries existing at the time such
Person becomes a Restricted Subsidiary, or is merged into, or consolidates with,
us or any Restricted Subsidiary, whether or not such Indebtedness was Incurred
in connection with, or in contemplation of, such Person becoming a Restricted
Subsidiary, or being merged into, or consolidated with, us or any Restricted
Subsidiary, shall be deemed Incurred at the time any such Person becomes a
Restricted Subsidiary or merges into, or consolidates with, us or any Restricted
Subsidiary.

  "Indebtedness" means without duplication, with respect to any Person, whether
recourse is to all or a portion of the assets of such Person and whether or not
contingent:

  (1) every obligation of such Person for money borrowed;

  (2) every obligation of such Person evidenced by bonds, debentures, notes or
      other similar instruments, including obligations Incurred in connection
      with the acquisition of property, assets or businesses;

  (3) every reimbursement obligation of such Person with respect to letters of
      credit, bankers' acceptances or similar facilities issued for the account
      of such Person;

  (4) every obligation of such Person issued or assumed as the deferred purchase
      price of property or services, but excluding trade accounts payable or
      accrued liabilities arising in the ordinary course of business which are
      not overdue or which are being contested in good faith;

  (5) every Capital Lease Obligation of such Person;

  (6) every net obligation under Hedging Agreements or similar agreements of
      such Person; and

  (7) every obligation of the type referred to in clauses (1) through (6) of
      another Person and all dividends of another Person the payment of which,
      in either case, such Person has guaranteed or is responsible or liable
      for, directly or indirectly, as obligor, guarantor or otherwise.

Indebtedness shall:

  (1) include the liquidation preference and any mandatory redemption payment
      obligations in respect of any of our Disqualified Stock and any Restricted
      Subsidiary and any Preferred Stock of any of our Subsidiaries;

  (2) never be calculated taking into account any cash and Cash Equivalents held
      by such Persons;

  (3) not include obligations arising from our agreements or agreement of a
      Restricted Subsidiary to provide for indemnification, adjustment of
      purchase price, earn-out or other similar obligations, in each case,
      Incurred or assumed in connection with the disposition of any business or
      assets of a Restricted Subsidiary.

The amount of any Indebtedness outstanding as of any date shall be:

  (1) the accreted value of such indebtedness, in the case of any Indebtedness
      issued with original issue discount;

  (2) the principal amount of such indebtedness, in the case of any Indebtedness
      other than Indebtedness issued with original issue discount; and

  (3) the greater of the maximum repurchase or redemption price or liquidation
      preference of such indebtedness, in the case of any Disqualified Stock or
      Preferred Stock.

  "Ineligible Subsidiary" means:

  (1) any Special Purpose Subsidiary;

  (2) any of our subsidiary guarantors;

  (3) any of our Subsidiaries that, directly or indirectly, own any Capital
      Stock or Indebtedness of or own or hold any Lien on any property of, us or
      any of our other Subsidiaries that is not a Subsidiary of the Subsidiary
      to be so designated; and

                                     -108-
<PAGE>

     (4)  any of our Subsidiaries that, directly or indirectly, own any Capital
          Stock or Indebtedness of, or own or hold any Lien on any property of,
          any other Subsidiaries that is not eligible to be designated as an
          Unrestricted Subsidiary.

     "initial purchasers" means Chase Securities Inc., BT Alex. Brown
Incorporated and Lehman Brothers Inc.

     "Investment" in any Person means any direct or indirect loan, advance,
guarantee or other extension of credit or capital contribution to, by means of
transfers of cash or other property to others or payments for property or
services for the account or use of others or otherwise, or purchase or
acquisition of Capital Stock, bonds, notes, debentures or other securities or
evidence of Indebtedness issued by, any other Person.

     "Legal Holiday" means a Saturday, Sunday or other day on which banking
institutions in the State of New York are authorized or required by law to
close.

     "License" means any broadband Personal Communications Services license
issued by the FCC in connection with the operation of a System.

     "License Subsidiary" means TeleCorp PCS, L.L.C. and THC and/or any of our
other Wholly Owned Restricted Subsidiaries designated as a License Subsidiary
under the Credit Agreement.

     "Lien" means, with respect to any property or assets, any mortgage or deed
of trust, pledge, hypothecation, assignment, security interest, lien, charge,
easement other than any easement not materially impairing usefulness or
marketability, encumbrance, preference, priority or other security agreement
with respect to such property or assets, including, without limitation, any
conditional sale or other title retention agreement having substantially the
same economic effect as any of the foregoing.

     "Lucent" means Lucent Technologies Inc., a Delaware corporation.

     "Lucent Note Purchase Agreement" means the Note Purchase Agreement dated as
of May 11, 1998, between us and Lucent, as amended as of the date of the
Indenture.

     "Management Stockholders" means Gerald Vento and Thomas Sullivan.

     "Marketing Affiliate" means any Person which engages in no activity other
than the registration, holding, maintenance or protection of trademarks and such
related licensing.

     "MTA" means a Major Trading Area, as defined in 47 C.F.R. (S)24.202.

     "Net Available Proceeds" from any Asset Disposition by any Person means
cash or readily marketable Cash Equivalents received, including by way of sale
or discounting of a note, installment receivable or other receivable, but
excluding any other consideration received in the form of assumption by the
acquiror of Indebtedness or other obligations relating to such properties or
assets or received in any other non-cash form, from such Asset Disposition by
such Person, including any cash received by way of deferred payment or upon the
monetization or other disposition of any non-cash consideration, including notes
or other securities received in connection with such Asset Disposition, net of:

     (1)  all legal, title and recording tax expenses, commissions and other
          fees and expenses incurred and all federal, state, foreign and local
          taxes required to be accrued as a liability as a consequence of such
          Asset Disposition;

     (2)  all payments made by such Person or any of its Restricted Subsidiaries
          on any Indebtedness which is secured by such assets in accordance with
          the terms of any Lien upon or with respect to such assets or which
          must, by the terms of such Lien, or in order to obtain a necessary
          consent to such Asset Disposition or by applicable law, be repaid out
          of the proceeds from such Asset Disposition;

     (3)  all payments made with respect to liabilities associated with the
          assets which are the subject of the Asset Disposition, including,
          without limitation, trade payables and other accrued liabilities;

     (4)  appropriate amounts to be provided by such Person or any Restricted
          Subsidiary, as the case may be, as a reserve in accordance with GAAP
          against any liabilities associated with such assets and retained by
          such Person or any such Restricted Subsidiary, as the case may be,
          after such Asset

                                     -109-
<PAGE>

          Disposition, including, without limitation, liabilities under any
          indemnification obligations and severance and other employee
          termination costs associated with such Asset Disposition, until such
          time as such amounts are no longer reserved or such reserve is no
          longer necessary at which time any remaining amounts will become Net
          Available Proceeds to be allocated in accordance with the provisions
          of clause (3) of the covenant described under "--Certain Covenants--
          Limitation on Certain Asset Dispositions"; and

     (5)  all distributions and other payments made to minority interest holders
          in Restricted Subsidiaries of such Person or joint ventures as a
          result of such Asset Disposition.

     "Net Investment" means the excess of:

     (1)  the aggregate amount of all Investments made in any Unrestricted
          Subsidiary or joint venture by us or any Restricted Subsidiary on or
          after the date of the Indenture, in the case of an Investment made
          other than in cash, the amount shall be the Fair Market Value of such
          Investment as determined in good faith by our Board or the board of
          such Restricted Subsidiary; over

     (2)  the aggregate amount returned in cash on or with respect to such
          Investments whether through interest payments, principal payments,
          dividends or other distributions or payments; provided, however, that
          such payments or distributions shall not be, and have not been,
          included in clause (c) of the first paragraph described under "--
          Certain Covenants--Limitation on Restricted Payments;" provided
          further that, with respect to all Investments made in any Unrestricted
          Subsidiary or joint venture, the amounts referred to in clause (1)
          above with respect to such Investments shall not exceed the aggregate
          amount of all such Investments made in such Unrestricted Subsidiary or
          joint venture.

     "Note" or "Notes" means any Note or Note issued under the Indenture,
including any Exchange Note or Exchange Notes, or any Private Exchange Note or
Private Exchange Notes, issued in exchange for any Note in connection with an
Exchange Offer.

     "Noteholder" or "Holder" means the Person in whose name a Note is
registered on the registrar's books.

     "Offer to Purchase" means a written offer (the "Offer") sent by us by first
class mail, postage prepaid, to each holder of the Notes at such holder's
address appearing in the register for the Notes on the date of the Offer
offering to purchase up to (a) the Accreted Value of Notes, if such Offer is on
or prior to April 15, 2004, or (b) the principal amount at maturity of the
Notes, if such Offer is after April 15, 2004, specified in such Offer at the
purchase price specified in such Offer as determined under the Indenture. Unless
otherwise required by applicable law, the Offer shall specify an expiration date
(the "Expiration Date") of the Offer to Purchase which shall be not less than 30
days nor more than 60 days after the date of such Offer and a settlement date
(the "Purchase Date") for purchase of the Notes within five Business Days after
the Expiration Date.  We shall notify the Trustee at least 15 Business Days, or
such shorter period as is acceptable to the Trustee, prior to the mailing of the
Offer of our obligation to make an Offer to Purchase, and the Offer shall be
mailed by us or, at our request, by the Trustee in our name and at our expense.
The Offer shall contain all the information required by applicable law to be
included in such Offer.  The Offer shall contain all instructions and materials
necessary to enable holders of the Notes to tender their Notes under the Offer
to Purchase. The Offer shall also state:

     (1)  the provision of the Indenture under which we make the Offer to
          Purchase;

     (2)  the Expiration Date and the Purchase Date;

     (3)  the aggregate principal amount at maturity of the Old Notes offered
          which we will purchase in the Offer to Purchase, including, if less
          than 100%, the manner by which such amount has been determined under a
          specified provision of the Indenture requiring the Offer to Purchase
          (the "Purchase Amount");

     (4)  the purchase price that we will pay for each $1,000 aggregate
          principal amount at maturity of Notes accepted for payment, as
          specified under the Indenture (the "Purchase Price");

     (5)  that such holder may tender all or any portion of the Notes registered
          in the name of such holder and that any portion of a Note tendered
          must be tendered in an integral multiple of $1,000 principal amount at
          maturity;

     (6)  the place or places where the Notes are to be surrendered for tender
          in the Offer to Purchase;

     (7)  that interest on any Note not tendered or tendered but which we do not
          purchase in the Offer to Purchase will continue to accrue;

                                     -110-
<PAGE>

     (8)  that on the Purchase Date the Purchase Price will become due and
          payable upon each Note being accepted for payment in the Offer to
          Purchase and that interest on such note shall cease to accrue on and
          after the Purchase Date;

     (9)  that each holder electing to tender all or any portion of a Note under
          the Offer to Purchase will be required to surrender such Note at the
          place or places specified in the Offer prior to the close of business
          on the Expiration Date, such Note being, if we or the Trustee so
          require, duly endorsed by, or accompanied by a written instrument of
          transfer in form satisfactory to us and the Trustee duly executed by,
          the holder of such Note or such holder's attorney duly authorized in
          writing;

     (10) that holders will be entitled to withdraw all or any portion of Notes
          tendered if we or our paying agent receive, not later than the close
          of business on the fifth Business Day next preceding the Expiration
          Date, a telegram, telex, facsimile transmission or letter setting
          forth the name of the holder, the principal amount at maturity of the
          Note the holder tendered, the certificate number of the Note the
          holder tendered and a statement that such holder is withdrawing all or
          a portion of such holder's tender;

     (11) that (a) if Notes in an aggregate principal amount at maturity less
          than or equal to the Purchase Amount are duly tendered and not
          withdrawn in the Offer to Purchase, we shall purchase all such Notes
          and (b) if Notes in an aggregate principal amount at maturity in
          excess of the Purchase Amount are tendered and not withdrawn in the
          Offer to Purchase, we shall purchase Notes having an aggregate
          principal amount at maturity equal to the Purchase Amount on a pro
          rata basis with such adjustments as may be deemed appropriate so that
          only Notes in denominations of $1,000 or integral multiples of $1,000
          shall be purchased; and

     (12) that in the case of any holder whose Note is purchased only in part,
          we shall execute and the Trustee shall authenticate and deliver to the
          holder of such Note without service charge, a new Note or Notes, of
          any authorized denomination as requested by such holder, in an
          aggregate principal amount at maturity equal to and in exchange for
          the unpurchased portion of the Note so tendered.

An Offer to Purchase shall be governed by and effected in accordance with the
provisions above pertaining to any Offer.

     "Officer" means the Chief Executive Officer, the Executive Vice President,
the Chief Financial Officer, the Chief Operating Officer, the President, any
Vice President, the Treasurer or any Secretary of us or any of our Subsidiaries,
as the case may be.

     "Officers' Certificate" means a certificate signed by two Officers.

     "Opinion of Counsel" means a written opinion from legal counsel who is
acceptable to the Trustee. The counsel may be an employee of or counsel to us or
the Trustee.

     "Permitted Asset Swap" means any exchange of assets by us or a Restricted
Subsidiary where we and/or our Restricted Subsidiaries receive consideration at
least 75% of which consists of (1) cash, (2) assets that are used or useful in a
Permitted Business or (3) any combination of such cash and such assets.

     "Permitted Business" means:

     (1)  the delivery or distribution of telecommunications, voice, data or
          video services;

     (2)  any business or activity reasonably related or ancillary to,
          including, without limitation, any business conducted by us or any
          Restricted Subsidiary on the date of the Indenture and the
          acquisition, holding or exploitation of any license relating to the
          delivery of the services described in clause (1) above; or

     (3)  any other business or activity in which we and the Restricted
          Subsidiaries are expressly contemplated to be engaged under the
          provisions of our certificate of incorporation and by-laws in effect
          on the date of the Indenture.

     "Permitted Holder" means:

     (1)  each of AT&T Wireless, TWR Cellular, the Cash Equity Investors, the
          Management Stockholders, Digital PCS, Wireless 2000 and any of their
          respective Affiliates and the respective successors by merger,
          consolidation, transfer or otherwise to all or substantially all of
          the respective businesses and assets of any of the foregoing; and

                                     -111-
<PAGE>

     (2)  any "person" or "group" as such terms are used in Sections 13(d) and
          14(d) of the Exchange Act controlled by one or more persons identified
          in clause (1) above.

     "Permitted Investments" means:

     (1)  Investments in Cash Equivalents;

     (2)  Investments representing Capital Stock or obligations issued to us or
          any Restricted Subsidiary in the course of the good faith settlement
          of claims against any other Person or by reason of a composition or
          readjustment of debt or a reorganization of any debtor of us or any
          Restricted Subsidiary;

     (3)  deposits including interest-bearing deposits, maintained in the
          ordinary course of business in banks;

     (4)  any Investment in any Person; provided, however, that, after giving
          effect to such Investment, such Person is or becomes a Restricted
          Subsidiary or such Person is merged, consolidated or amalgamated with
          or into, or transfers or conveys substantially all of its assets to,
          or is liquidated into, us or a Restricted Subsidiary;

     (5)  trade receivables and prepaid expenses, in each case arising in the
          ordinary course of business; provided, however, that such receivables
          and prepaid expenses would be recorded as assets of such Person in
          accordance with GAAP;

     (6)  endorsements for collection or deposit in the ordinary course of
          business by such Person of bank drafts and similar negotiable
          instruments of such other Person received as payment for ordinary
          course of business trade receivables;

     (7)  any interest rate agreements with an unaffiliated Person otherwise
          permitted by clause (5) or (6) under "--Certain Covenants--Limitation
          on Incurrence of Indebtedness;"

     (8)  Investments received as consideration for an Asset Disposition in
          compliance with the provisions of the Indenture described under "--
          Certain Covenants--Limitation on Certain Asset Dispositions;"

     (9)  loans or advances to employees of us or any Restricted Subsidiary in
          the ordinary course of business in an aggregate amount not to exceed
          $5.0 million in the aggregate at any one time outstanding;

     (10) any Investment acquired by us or any of our Restricted Subsidiaries as
          a result of a foreclosure by us or any of our Restricted Subsidiaries
          or in connection with the settlement of any outstanding Indebtedness
          or trade payable;

     (11) loans and advances to officers, directors and employees for business-
          related travel expense, moving expense and other similar expenses,
          each incurred in the ordinary course of business; and

     (12) other Investments with each such Investment being valued as of the
          date made and without giving effect to subsequent changes in value in
          an aggregate amount not to exceed $7.5 million at any one time
          outstanding.

     "Person" means any individual, corporation, limited or general partnership,
joint venture, association, joint stock company, trust, unincorporated
organization or government or any agency or political subdivision.

     "Plan of Liquidation" means, with respect to any Person, a plan including
by operation of law that provides for, contemplates, or the effectuation of
which is preceded or accompanied by whether or not substantially
contemporaneously:

     (1)  the sale, lease, conveyance or other disposition of all or
          substantially all of the assets of such Person; and

     (2)  the distribution of all or substantially all of the proceeds of such
          sale, lease, conveyance or other disposition and all or substantially
          all of the remaining assets of such Person to holders of Capital Stock
          of such Person.

     "Preferred Stock," as applied to the Capital Stock of any Person, means
Capital Stock of such Person of any class or classes, however designated, that
ranks prior, as to the payment of dividends or as to the distribution of assets
upon any voluntary or involuntary liquidation, dissolution or winding up of such
Person, to shares of Capital Stock of any other class of such Person.

     "principal" of a Note means the principal of the Note plus the premium, if
any, payable on the Note which is due or overdue or is to become due at the
relevant time.

                                     -112-
<PAGE>

     "Private Exchange Notes" means, collectively, our debt securities that are
identical in all material respects to the Exchange Notes, except for transfer
restrictions relating to such Private Exchange Notes, that we issued under the
same indenture as the Exchange Notes, simultaneously with the delivery of the
Exchange Notes in the Exchange Offer to any Noteholder that holds any Notes
acquired by it that have, or that are reasonably likely to be determined to
have, the status of an unsold allotment in an initial distribution, or to any
Noteholder that is not entitled to participate in the Exchange Offer, upon the
request of any such holder, in exchange for a like aggregate principal amount of
Notes held by such holder.

     "Public Sale" means any underwritten public offering, made on a primary
basis under a registration statement filed with, and declared effective by, the
SEC in accordance with the Securities Act.

     "Puerto Rico Acquisition" means the merger of Puerto Rico Acquisition Corp.
into us and the purchase by us from AT&T Wireless of 20 MHz of A-Block Licenses
covering the San Juan MTA together with related assets.

     "Qualified License" means, as of the date of determination, any License
covering or adjacent to any geographical area in respect of which we or any
Restricted Subsidiary owns, as of the Business Day immediately prior to such
date of determination, at least one other License covering a substantial portion
of such area.

     "Qualified Stock" means any of our Capital Stock other than Disqualified
Stock.

     "Real Property Subsidiary" means TeleCorp Realty L.L.C., Puerto Rico
Acquisition Corp. and/or any of our other Wholly Owned Subsidiaries that we
designate as a Real Property Subsidiary under the Credit Agreement.

     "Refinance" means refinance, renew, extend, replace or refund; and
"Refinancing" and "Refinanced" have correlative meanings.

     "Refinancing Indebtedness" means Indebtedness that is Incurred to refund,
refinance, replace, renew, repay or extend, including under any defeasance or
discharge mechanism, any of our Indebtedness or any Restricted Subsidiary
existing on the date of the Indenture or Incurred in compliance with the
Indenture, including our Indebtedness that Refinances Refinancing Indebtedness;
provided, however, that:

     (1)  the Refinancing Indebtedness has a Stated Maturity no earlier than the
          Stated Maturity of the Indebtedness being Refinanced;

     (2)  the Refinancing Indebtedness has an Average Life at the time such
          Refinancing Indebtedness is Incurred that is equal to or greater than
          the Average Life of the Indebtedness being refinanced;

     (3)  such Refinancing Indebtedness is Incurred in an aggregate principal
          amount, or if issued with original issue discount, an aggregate issue
          price, that is equal to or less than the aggregate principal amount,
          or if issued with original issue discount, the aggregate accreted
          value, then outstanding of the Indebtedness being Refinanced plus the
          amount of any premium required to be paid in connection with such
          Refinancing under the terms of the Indebtedness being Refinanced or
          the amount of any premium reasonably determined by the issuer of such
          Indebtedness as necessary to accomplish such Refinancing by means of a
          tender offer, exchange offer or privately negotiated repurchase, plus
          the expenses of such issuer reasonably incurred in connection with
          such Refinancing; and

     (4)  if the Indebtedness being Refinanced is pari passu with the Notes,
          such Refinancing Indebtedness is made pari passu with, or subordinate
          in right of payment to, the Notes, and, if the Indebtedness being
          Refinanced is subordinate in right of payment to the Notes, such
          Refinancing Indebtedness is subordinate in right of payment to the
          Notes on terms no less favorable to the holders of Notes than those
          contained in the Indebtedness being Refinanced;

provided further, however, that Refinancing Indebtedness shall not include:

     (A)  Indebtedness of a Restricted Subsidiary that Refinances our
          Indebtedness; or

     (B)  Our Indebtedness or Indebtedness of a Restricted Subsidiary that
          Refinances Indebtedness of an Unrestricted Subsidiary.

  "Restricted Subsidiary" means any of our Subsidiaries other than an
Unrestricted Subsidiary.

                                     -113-
<PAGE>

     "Revocation" has the meaning set forth under "--Certain Covenants--
Limitation on Designations of Unrestricted Subsidiaries."

     "Sale/Leaseback Transaction" means an arrangement relating to property
owned on the date of the Indenture or acquired by us or a Restricted Subsidiary
after the date of the Indenture that involves our or a Restricted Subsidiary's
transferring of such property to a Person and our or such Restricted
Subsidiary's leasing it from such Person, other than leases between us and a
Wholly Owned Subsidiary or between Wholly Owned Subsidiaries.

     "Securities Act" means the Securities Act of 1933, as amended.

     "Securities Purchase Agreement" means the Securities Purchase Agreement
dated January 23, 1998, among AT&T Wireless, TWR Cellular, the stockholders of
THC, the Cash Equity Investors, the Management Stockholders and us, as the such
agreement may be amended from time to time in accordance with the provisions of
such agreement, so long as the terms of any such amendment are no less favorable
to the Noteholders than the terms of the Securities Purchase Agreement in effect
on the date of the Indenture.

     "Senior Subordinated Indebtedness" of us means the Notes and any of our
other Indebtedness that specifically provides that such Indebtedness is to rank
pari passu with the Notes in right of payment and is not subordinated by its
terms in right of payment to any Indebtedness or any other of our obligations
which is not Senior Indebtedness. "Senior Subordinated Indebtedness" of our
subsidiary guarantors has a correlative meaning.

     "Series A Notes" means our Series A Notes purchased by Lucent under the
Lucent Note Purchase Agreement.

     "Significant Subsidiary" means any Restricted Subsidiary that would be our
"Significant Subsidiary" within the meaning of Rule 1-02 under Regulation S-X
promulgated by the SEC.

     "Special Purpose Subsidiary" means any Equipment Subsidiary, License
Subsidiary or Real Property Subsidiary.

     "Stated Maturity" means, with respect to any security, the date specified
in such security as the fixed date on which the final payment of principal of
such security is due and payable, including under any mandatory redemption
provision, but excluding any provision providing for the repurchase of such
security at the option of the holder of such security upon the happening of any
contingency beyond the control of the issuer unless such contingency has
occurred.

     "Stockholders' Agreement" means the Stockholders' Agreement dated as of
July 17, 1998, among AT&T Wireless, TWR Cellular, the Cash Equity Investors, the
Management Stockholders and us, as such agreement may be amended from time to
time in accordance with the provisions of such agreement, so long as the terms
of any such amendment are no less favorable to the Noteholders than the terms of
the Stockholders' Agreement in effect on the date of the Indenture.

     "Strategic Equity Investor" means any of the Cash Equity Investors, any
such Affiliate, any other Person engaged in a Permitted Business whose Total
Equity Market Capitalization exceeds $500 million or any other Person who has at
least $100 million total funds under management and who has issued an
irrevocable, unconditional commitment to purchase our Qualified Stock for an
aggregate purchase price that does not exceed 20% of the value of the funds
under management by such Person.

     "Subordinated Indebtedness" means any of our Indebtedness or any
Indebtedness of any of our subsidiary guarantors whether outstanding on the date
of the Indenture or Incurred after such date, which is by its terms expressly
subordinate or junior in right of payment to the Notes or the Subsidiary
Guarantee of such subsidiary guarantor, as the case may be.

     "Subsidiary" of any Person means:

     (1)  a corporation more than 50% of the outstanding Voting Stock of which
          is owned, directly or indirectly, by such Person or by one or more
          other Subsidiaries of such Person or by such Person and one or more
          other Subsidiaries of such Person; or

     (2)  any other Person, other than a corporation, in which such Person, or
          one or more other Subsidiaries of such Person or such Person and one
          or more other Subsidiaries of such Person, directly or indirectly, has
          at least a majority ownership and voting power relating to the
          policies, management and affairs of such Person.

                                     -114-
<PAGE>

     "Subsidiary Guarantee" means each guarantee of the obligations with respect
to the Notes issued by any of our Subsidiaries under the terms of the Indenture,
each such Subsidiary Guarantee having subordination provisions equivalent to
those contained in the Indenture with respect to the Notes and being
substantially in the form prescribed in the Indenture.

     "System" means, as to any Person, assets constituting a radio
communications system authorized under the rules for wireless communications
services, including any license and the network, marketing, distribution, sales,
customer interface and operations and functions relating to such license, owned
and operated by such Person.

     "THC" means TeleCorp Holding Corp., Inc., a Delaware corporation and a
Wholly Owned Subsidiary.

     "Total Consolidated Indebtedness" means, at any date of determination, an
amount equal to:

     (1)  the accreted value of all Indebtedness, in the case of any
          Indebtedness issued with original issue discount; plus

     (2)  the principal amount of all Indebtedness, in the case of any other
          Indebtedness,

of us and our Restricted Subsidiaries outstanding as of the date of
determination; provided, however, that no amount owing by us or any of our
Restricted Subsidiaries in respect of any Series A Notes outstanding as of the
date of determination shall be included in the determination of Total
Consolidated Indebtedness.

     "Total Equity Market Capitalization" of any Person means, as of any day of
determination, the sum of (a) the product of (1) the aggregate number of
outstanding primary shares of common stock of such Person on such day, which
shall not include any options or warrants on, or securities convertible or
exchangeable into, shares of common stock of such Person, multiplied by (2) the
average closing price of such common stock listed on a national securities
exchange or the Nasdaq National Market System over the 20 consecutive Business
Days immediately preceding such day plus (b) the liquidation value of any
outstanding shares of preferred stock of such Person on such day.

     "Total Invested Capital" means, as of any date of determination, the sum
of, without duplication:

     (1)  the total amount of equity contributed to us as of the date of the
          Indenture, as set forth on our December 31, 1998 consolidated balance
          sheet; plus

     (2)  irrevocable, unconditional commitments from any Strategic Equity
          Investor to purchase our Capital Stock other than Disqualified Stock,
          within 36 months of the date of issuance of such commitment, but in
          any event not later than the Stated Maturity of the Notes; provided,
          however, that such commitments shall exclude commitments related to
          any Investment in any Person incorporated, formed or created for the
          purpose of acquiring one or more Qualified Licenses unless such Person
          shall become a Restricted Subsidiary; plus

     (3)  the aggregate net cash proceeds received by us from capital
          contributions or the issuance or sale of our Capital Stock, other than
          Disqualified Stock, but including Qualified Stock issued upon the
          conversion of convertible Indebtedness or upon the exercise of
          options, warrants or rights to purchase Qualified Stock, subsequent to
          the date of the Indenture, other than issuances or sales of Capital
          Stock to a Restricted Subsidiary and other than capital contributions
          from, or issuances or sales of Capital Stock to, any Strategic Equity
          Investor in connection with (a) any Investment in any Person
          incorporated, formed or created for the purpose of acquiring one or
          more Qualified Licenses and (b) any Investment in any Person engaged
          in a Permitted Business, unless, in either case, such Person shall
          become a Restricted Subsidiary; provided, however, such aggregate net
          cash proceeds shall exclude any amounts included as commitments to
          purchase Capital Stock in the preceding clause (2); plus

     (4)  the Fair Market Value of assets that are used or useful in a Permitted
          Business or of the Capital Stock of a Person engaged in a Permitted
          Business received by us as a capital contribution or in exchange for
          our Capital Stock, other than Disqualified Stock, subsequent to the
          date of the Indenture, other than (x) capital contributions from a
          Restricted Subsidiary or issuance or sales of our Capital Stock to a
          Restricted Subsidiary or (y) the proceeds from the sale of Qualified
          Stock to an employee stock ownership plan or other trust established
          by us or any of our subsidiaries; plus

     (5)  the aggregate net cash proceeds received by us or any Restricted
          Subsidiary from the sale, disposition or repayment of any Investment
          made after the date of the Indenture and constituting a Restricted
          Payment in an amount equal to the lesser of (a) the return of capital
          with respect to such Investment and (b) the initial amount of such
          Investment, in either case, less the cost of the disposition of such
          Investment; plus

                                     -115-
<PAGE>

     (6)  an amount equal to the consolidated Net Investment of us and/or any of
          our Restricted Subsidiaries in any Subsidiary that has been designated
          as an Unrestricted Subsidiary after the date of the Indenture upon its
          redesignation as a Restricted Subsidiary in accordance with the
          covenant described under "--Certain Covenants--Limitation on
          Designations of Unrestricted Subsidiaries;" plus

     (7)  cash proceeds from the sale to Lucent of the Series A Notes, less
          payments made by us or any of our Subsidiaries with respect to Series
          A Notes, other than payments of additional Series A Notes; plus

     (8)  Total Consolidated Indebtedness; minus

     (9)  the aggregate amount of all Restricted Payments including any
          Designation Amount, but other than a Restricted Payment of the type
          referred to in clause (3)(b) of the third paragraph of the covenant
          described under "--Certain Covenants--Limitations on Restricted
          Payments," declared or made on or after the date of the Indenture.

     "TIA" means the Trust Indenture Act of 1939 (15 U.S.C. (S)(S)77aaa-77bbbb)
as in effect on the date of the Indenture.

     "Trustee" means the party named as such in the Indenture until a successor
replaces it and, after such replacement, means the successor.

     "Trust Officer" means the Chairman of the board of directors, the President
or any other officer or assistant officer of the Trustee assigned by the Trustee
to administer its corporate trust matters.

     "TWR Cellular" means TWR Cellular, Inc., a Delaware corporation, and an
Affiliate of AT&T Wireless.

     "Unrestricted Subsidiary" means (1) any of our Subsidiaries, other than an
Ineligible Subsidiary, designated after the date of the Indenture as such under,
and in compliance with, the covenant described under "--Certain Covenants--
Limitation on Designations of Unrestricted Subsidiaries" and (2) any Marketing
Affiliate.  Any such designation of any of our Subsidiaries may be revoked by a
resolution of our Board delivered to the Trustee certifying compliance with such
covenant, subject to the provisions of such covenant.

     "U.S. Government Obligations" means direct obligations, or certificates
representing an ownership interest in such obligations, of the United States of
America, including any agency or instrumentality of the United States of
America, for the payment of which the full faith and credit of the United States
of America is pledged and which are not callable or redeemable at the issuer's
option.

     "Vendor Credit Arrangement" means any Indebtedness, including, without
limitation, Indebtedness under any credit facility entered into with any vendor
or supplier or any financial institution acting on behalf of such vendor or
supplier; provided  that the net proceeds of such Indebtedness are used solely
for the purpose of financing the cost, including, without limitation, the cost
of design, development, site acquisition, construction, integration, handset
manufacture or acquisition or microwave relocation, of assets used or usable in
a Permitted Business, including, without limitation, through the acquisition of
Capital Stock of an entity engaged in a Permitted Business.

     "Voting Stock" of any Person means the Capital Stock of such Person which
ordinarily has voting power for the election of directors, or Persons performing
similar functions, of such Person, whether at all times or only so long as no
senior class of securities has such voting power by reason of any contingency.

     "Wholly Owned Subsidiary" means a Restricted Subsidiary, all of the
outstanding Capital Stock or other ownership interests of which, other than
directors' qualifying shares, shall at the time be owned by us and/or by one or
more Wholly Owned Subsidiaries.

     "Wireless 2000" means Wireless 2000, Inc.

     "Wireless 2000 Acquisition" means our purchase from Wireless 2000 of 15 MHz
of C-Block Licenses for the Monroe, Alexandria and Lake Charles, Louisiana BTAs.

                                     -116-
<PAGE>

                    CERTAIN U.S. FEDERAL TAX CONSIDERATIONS

     The following is a discussion of certain material U.S. federal income and
estate tax consequences of the acquisition, ownership, disposition and exchange
of the Notes. Unless otherwise stated, this discussion is limited to the tax
consequences to those persons who are initial purchasers of the Notes and who
hold such Notes as capital assets within the meaning of Section 1221 of the
Internal Revenue Code of 1986, as amended (the "Code") (for purposes of this
section, the "Holders"). The discussion does not purport to address specific tax
consequences that may be relevant to particular persons, including, for example,
financial institutions, broker-dealers, insurance companies, tax-exempt
organizations, and persons in special situations, such as those who hold the
Notes as part of a straddle, hedge, conversion transaction, or other integrated
investment. In addition, this discussion does not address U.S. federal
alternative minimum tax consequences or any aspect of state, local or foreign
taxation. This discussion is based upon the Code, the Treasury regulations
promulgated under, and administrative and judicial interpretations of such Code
and regulations, all of which are subject to change, possibly on a retroactive
basis.

     We have not sought and will not seek any rulings from the Internal Revenue
Service (the "Service") with respect to the Notes. There can be no assurance
that the Service will not take a different position concerning the tax
consequences of the purchase, ownership or disposition of the Notes or that a
court would not sustain the Service's position.

     For purposes of this discussion, a "U.S. Holder" means a Holder that, for
U.S. federal income tax purposes, is (1) a U.S. citizen or resident, (2) a
corporation, partnership or other entity created or organized in or under the
laws of the United States or any political subdivision, (3) an estate the income
of which is subject to U.S. federal income taxation regardless of its source, or
(4) a trust if (A) a U.S. court exercises primary jurisdiction over its
administration and (B) one or more "United States persons" (as defined under
Section 7701(a)(30) of the Code) has the authority to control all substantial
decisions. A "Non-U.S. Holder" is any Holder other than a U.S. Holder.

     PROSPECTIVE PURCHASERS OF THE NOTES ARE URGED TO CONSULT THEIR TAX ADVISORS
CONCERNING THE U.S. FEDERAL INCOME TAX CONSEQUENCES TO THEM OF ACQUIRING,
OWNING, DISPOSING AND EXCHANGING OF THE NOTES, AS WELL AS THE APPLICATION OF
STATE, LOCAL AND FOREIGN INCOME AND OTHER TAX LAWS AND OF ANY CHANGE IN FEDERAL
TAX LAW OR ADMINISTRATIVE OR JUDICIAL INTERPRETATION OF SUCH LAW SINCE THE DATE
OF THIS PROSPECTUS.

Exchange Offer

     The exchange of Exchange Notes for the Old Notes in the Exchange Offer
should not be treated as an "exchange" for federal income tax purposes because
the Exchange Notes will not be considered to differ materially in kind or extent
from the Old Notes. As a result, there should be no federal income tax
consequences to holders of the Old Notes exchanging the Old Notes for the
Exchanges Notes in the Exchange Offer. No gain or loss should be realized by a
holder upon receipt of an Exchange Note. The basis of the Exchange Notes would
be the same as the adjusted basis of the Notes immediately before the exchange
and the holding period of the Exchange Notes would include the holding period of
the Notes. The Exchange Notes would be subject to the tax rules applicable to
the Notes as described above, including with respect to the accrual and
inclusion in income of OID. It is possible that the Service could take a
different position concerning the exchange of Notes for Exchange Notes in the
event of a Registration Default that results in the payment of liquidated
damages with respect to the Notes. Holders are urged to consult their own tax
advisors regarding the tax consequences of the Exchange Offer.

Characterization of the Notes

     We will treat the Notes as indebtedness for U.S. federal income tax
purposes, and the following discussion assumes that such treatment will be
respected. Accordingly, under Section 385(c) of the Code, a Holder also will
generally be required to treat the Notes as indebtedness. A Holder taking an
inconsistent position must expressly disclose such fact in the Holder's return.

Tax Consequences to U.S. Holders

     Original Issue Discount. The Notes will be treated as issued with original
issue discount ("OID"). All U.S. Holders, regardless of their method of
accounting for tax purposes, will be required to include OID in income as it
accrues. Therefore, inclusion of the OID in gross income will occur in advance
of the receipt of some or all of the related cash payments (whether labeled as
interest or otherwise). OID will generally be treated as interest income to a
U.S. Holder and will accrue on a constant yield-to-maturity basis over the life
of the Notes, as discussed below.

                                     -117-
<PAGE>

     The amount of OID with respect to a Note will be equal to the excess of the
"stated redemption price at maturity" of such Note over its "issue price." The
"stated redemption price at maturity" of a debt instrument generally includes
all cash payments, including principal and interest, required to be made with
respect to the debt instrument through its maturity, other than "qualified
stated interest." "Qualified stated interest" is generally defined as stated
interest that is unconditionally payable in cash or other property, other than
debt instruments of the issuer, at least annually and at a single fixed rate
that appropriately takes into account the lengths of intervals between payments.
The stated interest on the Notes will not qualify as "qualified stated
interest," and thus the "stated redemption price at maturity" of a Note will
include all cash payments of principal and interest through maturity. The "issue
price" of the Notes will be the first price at which a substantial portion are
sold to investors, excluding bond houses, brokers, or similar persons acting as
underwriters, placement agents, or wholesalers, for cash.

     Taxation of Original Issue Discount.   The amount of OID accruing to and
includible in income by a U.S. Holder of a Note will be the sum of the "daily
portions" of OID with respect to such Note for each day during the taxable year
or portion of such taxable year on which such Holder owns such Note ("accrued
OID"). The daily portion is determined by allocating to each day in any "accrual
period" a pro rata portion of the OID allocable to that accrual period.  The
accrual periods are periods of any length and may vary in length over the term
of a Note, provided that each accrual period is no longer than one year and each
scheduled payment of principal or interest occurs either on the final day or on
the first day of an accrual period.  The amount of OID accruing during any
accrual period with respect to a Note will be equal to the product of (x) the
"adjusted issue price" of such Note at the beginning of that accrual period and
(y) the yield to maturity of such Note, taking into account the length of the
accrual period. The "adjusted issue price" of a Note at the beginning of its
first accrual period will be equal to its issue price. The "adjusted issue
price" at the beginning of any subsequent accrual period will be equal to (1)
the adjusted issue price at the beginning of the prior accrual period, plus (2)
the amount of OID accrued during the prior accrual period, minus (3) any
payments made on the Note during the prior accrual period. The "yield to
maturity" of a Note is the discount rate that, when used in computing the
present value of all principal and interest payments to be made on the Note,
produces an amount equal to the issue price of the Note.

     OID allocable to a final accrual period is the difference between the
amount payable at maturity and the adjusted issue price at the beginning of the
final accrual period. If all accrual periods are of equal length, except for an
initial short accrual period, the amount of OID allocable to the initial short
accrual period may be computed under any reasonable method.

     We are required to report the amount of OID accrued on the Notes held of
record by persons other than corporations and certain other Holders. See "--
Information Reporting and Backup Withholding." Because stated interest on the
Notes is taken into account in the accrual of OID, a U.S. Holder will not be
required to recognize any income upon receipt of interest payments on the Notes.
The tax basis of a Note in the hands of a U.S. Holder will be increased by the
amount of OID, if any, on the Note that is included in the U.S. Holder's income
under these rules and will be decreased by the amount of any payments, whether
stated as interest or principal, made with respect to the Note.

     Acquisition Premium.   A subsequent U.S. Holder of a Note is generally
subject to the rules for accruing OID described above. However, if such U.S.
Holder's purchase price for the Note exceeds the adjusted issue price but is
less than or equal to the sum of all amounts payable on the Note after the
purchase date, the excess ("acquisition premium") is subject to special rules.

     Acquisition premium ratably offsets the amount of accrued OID otherwise
includible in such U.S. Holder's taxable income, i.e., such U.S. Holder may
reduce the daily portions of OID by a fraction, the numerator of which is the
excess of such U.S. Holder's purchase price for the Note over the adjusted issue
price, and the denominator of which is the excess of the sum of all amounts
payable on the Note after the purchase date over the Note's adjusted issue
price.  As an alternative to reducing the amount of OID otherwise includible in
income by this fraction, the U.S. Holder may elect to compute OID accruals by
treating the purchase as a purchase at original issuance and applying the
constant yield method described above under "Taxation of Original Issue
Discount."

     Market Discount.  Under the market discount rules of the Code, a U.S.
Holder who purchases a Note at a "market discount" will generally be required to
treat any gain recognized on the disposition of the Note as ordinary income to
the extent of the lesser of such gain or the portion of the market discount that
accrued during the period that the U.S. Holder held such Note. Market discount
is generally defined as the amount by which a U.S. Holder's purchase price for a
Note is less than the revised issue price of the Note on the date of purchase,
subject to a statutory de minimis exception. A Note's revised issue price equals
the sum of the issue price of the Note and the aggregate amount of the OID
includible in the gross income of all Holders of such Note for periods before
the acquisition of the Note by such Holder, likely reduced, although the Code
does not expressly so provide, by any cash payment in respect of the Note. A
U.S. Holder who acquires a Note at a market discount may be required to defer a
portion of any interest expense that otherwise may be deductible on any
indebtedness incurred or continued to purchase or carry such Note until the U.S.
Holder disposes of the Note in a taxable transaction.

                                     -118-
<PAGE>

     A U.S. Holder who has elected under applicable Code provisions to include
market discount in income annually as such discount accrues will not, however,
be required to treat any gain recognized as ordinary income or to defer any
deductions for interest expense under these rules. A U.S. Holder's tax basis in
a Note is increased by each accrual of amounts treated as market discount. This
election to include market discount in income currently, once made, applies to
all market discount obligations acquired on or after the first day of the
taxable year to which the election applies and may not be revoked without the
consent of the Service. Holders should consult their tax advisors as to the
portion of any gain that would be taxable as ordinary income under these
provisions and any other consequences of the market discount rules that may
apply to them in particular.

     Election to Treat All Interest as Original Issue Discount. U.S. Holders may
elect to include in gross income all amounts in the nature of interest that
accrue on a Note, including any stated interest, acquisition discount, OID,
market discount, de minimis OID, de minimis market discount and unstated
interest, as adjusted by amortizable bond premium and acquisition premium, by
using the constant yield method described above under "Taxation of Original
Issue Discount." Such an election for a Note with amortizable bond premium
results in a deemed election to amortize bond premium for all debt instruments
owned and later acquired by the U.S. Holder with amortizable bond premium and
may be revoked only with the permission of the Service. Similarly, such an
election for a Note with market discount results in a deemed election to accrue
market discount in income currently for such Note and for all other bonds
acquired by the U.S. Holder with market discount on or after the first day of
the taxable year to which such election first applies, and may be revoked only
with permission of the Service. A U.S. Holder's tax basis in a Note is increased
by each accrual of the amounts treated as OID under the constant yield election
described in this paragraph.

     Change of Control.  In the event of a change of control, the Holders will
have the right to require us to purchase their Notes. The Treasury regulations
provide that the right of Holders of the Notes to require redemption of the
Notes upon the occurrence of a change of control will not affect the yield or
maturity date of the Notes unless, based on all the facts and circumstances as
of the issue date, it is more likely than not that a change of control giving
rise to the redemption right will occur. We do not intend to treat this
redemption provision of the Notes as affecting the computation of the yield to
maturity of the Notes.

     Redemption of Notes.  We may redeem the Notes at any time on or after a
certain date, and, in certain circumstances, may redeem or repurchase all or a
portion of the Notes any time prior to the maturity date. Under Treasury
regulations, we are deemed to exercise any option to redeem if the exercise of
such option would lower the yield of the debt instrument. We believe, and intend
to take the position, that we will not be treated as having exercised an option
to redeem under these rules.

     Sale, Redemption, Exchange or Retirement of the Notes.  Upon the sale,
redemption, exchange or retirement of the Notes, a U.S. Holder will recognize
gain or loss equal to the difference between (1) the amount of cash and the fair
market value of property received upon the sale, redemption, exchange or
retirement and (2) the U.S. Holder's adjusted tax basis in the Notes. A U.S.
Holder's adjusted tax basis in the Notes will generally be the U.S. Holder's
cost therefor increased by the amount of OID previously accrued on the Notes
through the sale, redemption, exchange or retirement date and decreased by the
amount of all prior cash payments received with respect to the Notes.

     Gain or loss recognized by a U.S. Holder on the sale, redemption, exchange,
or retirement of the Notes will be capital gain or loss, except to the extent it
constitutes accrued but unrecognized market discount, and will be long-term
capital gain or loss if the Notes have been held by the U.S. Holder for more
than one year.

U.S. Tax Consequences to Non-U.S. Holders

     For purposes of the following discussion, interest income, OID and gain on
the sale, redemption, exchange or retirement of a Note will be U.S. trade or
business income if such income or gain is effectively connected with a trade or
business carried on by the Non-U.S. Holder within the United States.

     Interest and OID.  In general, any interest or OID paid to a Non-U.S.
Holder of a Note will not be subject to U.S. federal income tax if (1) the
interest or OID is not U.S. trade or business income, and (2) as discussed
below, the interest or OID qualifies as "portfolio interest."

     Interest or OID on the Notes generally will qualify as "portfolio interest"
if (1) the Non-U.S. Holder does not actually or constructively own 10% or more
of the total combined voting power of all classes of our stock entitled to vote,
(2) the Non-U.S. Holder is not a controlled foreign corporation (as defined in
the Code) with respect to which we are a "related person" within the meaning of
the Code, and (3) either (A) the Non-U.S. Holder certifies to us or our agent
under penalties of perjury that it is not a U.S. person and such certificate
provides such Non-U.S. Holder's name and address, or (B) in the case of a Note
held by a securities clearing organization, bank, or other financial institution
that holds customers' securities in the ordinary course of its trade or business
(a "financial institution"), the financial institution certifies to us or our
agent under penalties of perjury that such

                                     -119-
<PAGE>

certificate has been received from the Non-U.S. Holder by it or by another
financial institution and the financial institution furnishes the payor with a
copy of the Non-U.S. Holder's certificate. Under recently finalized Treasury
Regulations (the "Final Regulations"), the certification requirements described
above may also be satisfied with other documentary evidence for interest paid
after December 31, 1999, with respect to an offshore account or through certain
foreign intermediaries.

     If the interest or OID neither qualifies as portfolio interest nor is
treated as U.S. trade or business income, the gross amount of the payment
generally will be subject to U.S. withholding tax at the rate of 30% unless such
rate is reduced or eliminated by an applicable income tax treaty. U.S. trade or
business income generally will be subject to U.S. federal income tax at regular
rates in the same manner as if the Non-U.S. Holder were a U.S. Holder, and, in
the case of a Non-U.S. Holder that is a corporation, such income, under certain
circumstances, may be subject to an additional "branch profits tax" at a 30%
rate or such lower rate as may be applicable under an income tax treaty, but
such income generally will not be subject to the 30% withholding tax. To claim
the benefit of a lower or zero withholding rate under an income tax treaty or to
claim exemption from withholding because the income is U.S. trade or business
income, the Non-U.S. Holder must provide the payor with a properly executed IRS
Form 1001 or 4224, respectively or, in the case of payments after December 31,
1999, IRS Form W-8, prior to the payment of interest or OID.

     Sale, Exchange, Redemption, or Other Disposition of a Note.  Any gain
realized by a Non-U.S. Holder on the sale, redemption, exchange or other
disposition of a Note generally will not be subject to U.S. federal income or
withholding taxes unless (1) such gain is effectively connected with the conduct
of a trade or business in the United States by the Non-U.S. Holder or (2) in the
case of an individual, such Non-U.S. Holder is present in the United States for
183 days or more and certain other conditions are met.

     U.S. Federal Estate Tax.  In general, notes held by an individual who is
neither a citizen nor a resident of the United States for U.S. federal estate
tax purposes at the time of such individual's death will not be subject to U.S.
federal estate tax unless the income from such Notes was effectively connected
with a U.S. trade or business of such individual or would not qualify as
portfolio interest (as described above under "Tax Consequences to Non-U.S.
Holders--Interest and OID"), without regard to the certification requirements,
if received by such individual at the time of his or her death.

Information Reporting and Backup Withholding

     We will be required to report annually to the IRS, and to each Holder of
record, the amount of OID paid on the Notes, and the amount withheld for federal
income taxes, if any, for each calendar year, except as to exempt Holders,
generally, corporations, tax-exempt organizations, qualified pension and profit-
sharing trusts, individual retirement accounts, or nonresident aliens who
provide certification as to their status.  Each Holder, other than Holders who
are not subject to the reporting requirements, will be required to provide to
us, under penalties of perjury, a certificate containing the Holder's name,
address, correct federal taxpayer identification number and a statement that the
Holder is not subject to backup withholding. Should a nonexempt Holder fail to
provide the required certificate, we will be required to withhold 31% of the OID
otherwise payable to the Holder and to remit the withheld amount to the Service
as a credit against the Holder's federal income tax liability.

     In the case of payments of OID to Non-U.S. Holders, temporary Treasury
regulations provide that the 31% backup withholding tax and certain information
reporting will not apply to such payments with respect to which the requisite
certification, as described above, for the exemption from the 30% withholding
tax, has been received or an exemption has otherwise been established; provided
that neither we nor our payment agent have actual knowledge that the Holder is a
U.S. person or that the conditions of any other exemption are not in fact
satisfied. Under temporary Treasury regulations, these information reporting and
backup withholding requirements will apply, however, to the gross proceeds paid
to a Non-U.S. Holder on the disposition of Notes by or through a U.S. office of
a U.S. or foreign broker, unless the Holder certifies to the broker under
penalties of perjury as to its name, address and status as a foreign person or
the Holder otherwise establishes an exemption. Information reporting
requirements will also apply to a payment of the proceeds of a disposition of
Notes by or through a foreign office of a U.S. broker or foreign brokers with
certain types of relationships to the United States unless such broker has
documentary evidence in its file that the Holder is not a U.S. person, and such
broker has no actual knowledge to the contrary, or the Holder establishes an
exception; backup withholding will not apply to such payment, absent actual
knowledge that the Holder is a U.S. Holder. Neither information reporting nor
backup withholding generally will apply to a payment of the proceeds of a
disposition of Notes by or through a foreign office of a foreign broker not
subject to the previous sentence.

     The Treasury Department recently promulgated final regulations regarding
the withholding and information reporting rules relating to Non-U.S. Holders
discussed above. In general, the final regulations do not significantly alter
the substantive withholding and information reporting requirements but rather
unify current certification procedures and forms and clarify reliance standards.
The final regulations are generally effective for payments made after December
31, 1999, subject to certain transition rules. Non-U.S. Holders should consult
their own tax advisors with respect to the impact, if any, of the new final
regulations.

                                     -120-
<PAGE>

Applicable High Yield Discount Obligations

     Section 163 of the Code provides that the yield with respect to certain
"applicable high yield discount obligations" will be bifurcated into two
elements: (1) an interest element that is deductible by the issuer only when
paid (generally in cash) and (2) a disqualified portion, if any, as described
below, for which the issuer receives no deduction (the "disqualified portion").
A U.S. Holder of an applicable high yield discount obligation must continue to
include interest or OID on the obligation in income as it accrues. A corporate
U.S. Holder of such obligation, however, is allowed to claim a dividends-
received deduction for the part of the disqualified portion, if any, as
described below, that would have been treated as a dividend had it been
distributed to such Holder by the issuing corporation with respect to its stock.

     The deduction by us of OID on the Notes will be limited if the Notes
constitute applicable high yield discount obligations.  A Note will be an
applicable high yield discount obligation if (1) its yield to maturity equals or
exceeds the sum of (x) the long-term applicable federal rate for the month in
which it was issued and (y) 5% and (2) the Note has significant OID. A Note will
have significant OID if (1) the aggregate amount that would be included in gross
income with respect to the Note for periods before the close of any accrual
period that ends more than five years after the date of issue exceeds (2) the
sum of (x) the aggregate amount of interest to be paid, generally in cash, under
the Note before the close of such accrual period and (y) the product of the
Note's issue price and its yield to maturity. If the Notes are applicable high
yield discount obligations, the disqualified portion of OID will equal the
lesser of (x) the amount of the OID on the Note and (y) the product of the total
OID on the Notes and a fraction, the numerator of which is (a) the yield to
maturity minus (b) the sum of 6% and the long-term applicable federal rate in
effect for the month in which the Notes are issued, and the denominator of which
is the yield to maturity.

     Corporate U.S. Holders generally will be eligible for the dividends-
received deduction with respect to any disqualified portion of OID on a Note to
the extent of our accumulated or current earnings and profits, if any. The
availability of the dividends-received deduction is subject to a number of
complex limitations. Although the issue is not totally clear, any amount
qualifying as a dividend should not be subject to extraordinary dividend
treatment under Section 1059 of the Code. Corporate U.S. Holders should consult
their tax advisors concerning the availability of the dividends-received
deduction.

                                     -121-
<PAGE>

                         BOOK-ENTRY; DELIVERY AND FORM

  The Exchange Notes are represented by a permanent global certificate in
definitive, fully registered form (the "Global Note").  The Global Note is
registered in the name of a nominee of DTC.

Certain Book-Entry Procedures for the Global Notes

  The descriptions of the operations and procedures of DTC, Euroclear and Cedel
set forth below are provided solely as a matter of convenience. These operations
and procedures are solely within the control of the respective settlement
systems, and are subject to change by them from time to time. Neither we nor any
of the initial purchasers of the Old Notes takes any responsibility for these
operations or procedures, and investors are urged to contact the relevant system
or its participants directly to discuss these matters.

  DTC has advised us that it is (1) a limited purpose trust company organized
under the laws of the State of New York, (2) a "banking organization" within the
meaning of the New York Banking Law, (3) a member of the Federal Reserve System,
(4) a "clearing corporation" within the meaning of the Uniform Commercial Code,
as amended, and (5) a "clearing agency" registered under Section 17A of the
Exchange Act. DTC was created to hold securities for its participants
(collectively, the "Participants") and facilitates the clearance and settlement
of securities transactions between Participants through electronic book-entry
changes to the accounts of its Participants, thereby eliminating the need for
physical transfer and delivery of certificates. DTC's Participants include
securities brokers and dealers, including the initial purchasers, banks and
trust companies, clearing corporations and certain other organizations. Indirect
access to DTC's system is also available to other entities such as banks,
brokers, dealers and trust companies (collectively, the "Indirect Participants")
that clear through, or maintain a custodial relationship with a Participant,
either directly or indirectly. Investors who are not Participants may
beneficially own securities held by, or on behalf of DTC only through
Participants or Indirect Participants.

  We expect that under procedures established by DTC, (1) upon deposit of each
Global Note, DTC will credit the accounts of Participants designated by the
initial purchasers of the Old Notes with an interest in the Global Note and (2)
ownership of the Notes will be shown on, and the transfer of ownership of the
Notes will be effected only through, records maintained by DTC, with respect to
the interests of Participants and the records of Participants and the Indirect
Participants (with respect to the interests of persons other than Participants).

  The laws of some jurisdictions may require that certain purchasers of
securities take physical delivery of such securities in definitive form.
Accordingly, the ability to transfer interests in the Notes represented by a
Global Note to such persons may be limited. In addition, because DTC can act
only on behalf of its Participants, who in turn act on behalf of persons who
hold interests through Participants, the ability of a person having an interest
in the Notes represented by a Global Note to pledge or transfer such interest to
persons or entities that do not participate in DTC's system, or to otherwise
take actions in respect of such interest, may be affected by the lack of a
physical definitive security in respect of such interest.

  So long as DTC or its nominee is the registered owner of a Global Note, DTC or
such nominee, as the case may be, will be considered the sole owner or holder of
the Notes represented by the Global Note for all purposes under the Indenture.
Except as provided below, owners of beneficial interests in a Global Note will
not be entitled to have the Notes represented by such Global Note registered in
their names, will not receive or be entitled to receive physical delivery of
Certificated Notes and will not be considered the owners or holders under the
Indenture for any purpose, including with respect to the giving of any
direction, instruction or approval to the Trustee. Accordingly, each holder
owning a beneficial interest in a Global Note must rely on the procedures of DTC
and, if such holder is not a Participant or an Indirect Participant, on the
procedures of the Participant through which such holder owns its interest, to
exercise any rights of a holder of the Notes under the Indenture or such Global
Note. We understand that, under existing industry practice, if we request any
action of holders of the Notes, or a holder that is an owner of a beneficial
interest in a Global Note desires to take any action that DTC, as the holder of
such Global Note, is entitled to take, DTC would authorize the Participants to
take such action and the Participants would authorize holders owning through
such Participants to take such action or would otherwise act upon the
instruction of such holders. Neither we nor the Trustee will have any
responsibility or liability for any aspect of the records relating to, or
payments made on account of, the Notes by DTC, or for maintaining, supervising
or reviewing any records of DTC relating to such Notes.

  Payments with respect to the principal and interest, and premium, if any, and
liquidated damages, if any, on any Notes represented by a Global Note registered
in the name of DTC or its nominee on the applicable record date will be payable
by the Trustee to, or at the direction of, DTC or its nominee in its capacity as
the registered holder of the Global Note representing such Notes under the
Indenture. Under the terms of the Indenture, we and the Trustee will be
permitted to treat the persons in whose names the Notes, including the Global
Notes, are registered as the owners of such Notes for the purpose of receiving
payment thereon and for any and all other purposes whatsoever. Accordingly,
neither we nor the Trustee have or will have any

                                     -122-
<PAGE>

responsibility or liability for the payment of such amounts to owners of
beneficial interests in a Global Note (including principal, premium, if any,
liquidated damages, if any, and interest). Payments by the Participants and the
Indirect Participants to the owners of beneficial interests in a Global Note
will be governed by standing instructions and customary industry practice, and
will be the responsibility of the Participants or the Indirect Participants and
DTC.

  Transfers between Participants in DTC will be effected in accordance with
DTC's procedures and will be settled in same-day funds. Transfers between
participants in Euroclear or Cedel will be effected in the ordinary way in
accordance with their respective rules and operating procedures.

  Subject to compliance with the transfer restrictions applicable to the Notes,
cross-market transfers between the Participants in DTC, on the one hand, and
Euroclear or Cedel participants on the other hand, will be effected through DTC
in accordance with DTC's rules on behalf of Euroclear or Cedel, as the case may
be; however, such cross-market transactions will require delivery of
instructions to Euroclear or Cedel, as the case may be, by the counterparty in
such system in accordance with the rules and procedures, and within the
established deadlines (Brussels time), of such system. Euroclear or Cedel, as
the case may be, will, if the transaction meets its settlement requirements,
deliver instructions to its depositary to take action to effect final settlement
on its behalf, by delivering or receiving interests in the relevant Global Notes
in DTC and making or receiving payment in accordance with normal procedures for
same-day funds settlement applicable to DTC. Euroclear participants and Cedel
participants may not deliver instructions directly to the depositaries for
Euroclear or Cedel.

  Because of time zone differences, the securities account of a Euroclear or
Cedel participant purchasing an interest in a Global Note from a Participant in
DTC will be credited, and any such crediting will be reported to the relevant
Euroclear or Cedel participant, during the securities settlement processing day,
which must be a business day for Euroclear or Cedel, as the case may be,
immediately following the settlement date of DTC. Cash received by Euroclear or
Cedel as a result of sales of interests in a Global Note by or through a
Euroclear or Cedel participant to a Participant in DTC will be received with
value on the settlement date of DTC, but will be available in the relevant
Euroclear or Cedel cash account only as of the business day for Euroclear or
Cedel, as the case may be, following DTC's settlement date.

  Although DTC, Euroclear and Cedel have agreed to the foregoing procedures to
facilitate transfers of interests in the Global Notes among participants in DTC,
Euroclear and Cedel, they are under no obligation to perform or to continue to
perform such procedures, and such procedures may be discontinued at any time.
Neither we nor the Trustee will have any responsibility for the performance by
DTC, Euroclear or Cedel, or their respective participants or indirect
participants, of their respective obligations under the rules and procedures
governing their operations.

Certificated Notes

  If (1) we notify the Trustee in writing that DTC is no longer willing or able
to act as a depositary, or DTC ceases to be registered as a clearing agency
under the Exchange Act and a successor depositary is not appointed within 90
days of such notice or cessation, (2) we, at our option, notify the Trustee in
writing that it elects to cause the issuance of the Notes in definitive form
under the Indenture, or (3) upon the occurrence of certain other events as
provided in the Indenture, then, upon surrender by DTC of the Global Notes,
Certificated Notes will be issued to each person that DTC identifies as the
beneficial owner of the Notes represented by the Global Notes.  Upon any such
issuance, the Trustee is required to register such Certificated Notes in the
name of such person or persons, or the nominee of any such person, and cause the
same to be delivered to such person.

  Neither we nor the Trustee shall be liable for any delay by DTC or any
Participant or Indirect Participant in identifying the beneficial owners of the
related Notes, and each such person may conclusively rely on, and shall be
protected in relying on, instructions from DTC for all purposes, including with
respect to the registration and delivery, and the respective principal amounts,
of the Notes to be issued.

                                     -123-
<PAGE>

                             PLAN OF DISTRIBUTION

  Each broker-dealer that receives Exchange Notes for its own account in the
Exchange Offer must acknowledge that it will deliver a prospectus in connection
with any resale of such Exchange Notes.  A broker-dealer may use this
prospectus, as it may be amended or supplemented from time to time, in
connection with resales of Exchange Notes received in exchange for Old Notes
where such broker-dealer acquired such Old Notes as a result of market-making
activities or other trading activities.  For a period of 180 days after the
Expiration Date, we will make this prospectus, as amended or supplemented,
available to any broker-dealer that requests such documents in the Letter of
Transmittal, for use in connection with any such resale.  In addition, until
, 1999 (90 days after the date of this prospectus), all dealers effecting
transactions in the Exchange Notes may be required to deliver a prospectus.

  Each holder of Old Notes participating in the Exchange Offer will, by
execution of the Letter of Transmittal, represent to us that such holder is not
engaged in nor intends to engage in a distribution of Exchange Notes.

  We will not receive any proceeds from any sale of Exchange Notes by broker-
dealers.  Exchange Notes received by broker-dealers for their own account in the
Exchange Offer may be sold from time to time in one or more transactions in the
over-the-counter market, in negotiated transactions, through the writing of
options on the Exchange Notes or a combination of such methods of resale, at
market prices prevailing at the time of resale, at prices related to such
prevailing market prices or at negotiated prices.  Any such resale may be made
directly to purchasers or to or through brokers or dealers who may receive
compensation in the form of commissions or concessions from any such broker-
dealer or the purchasers of any such Exchange Notes.  Any broker-dealer that
resells Exchange Notes that were received by it for its own account in the
Exchange Offer and any broker or dealer that participates in a distribution of
such Exchange Notes may be deemed to be an "underwriter" within the meaning of
the Securities Act and any profit on any such resale of Exchange Notes and any
commission or concessions received by any such persons may be deemed to be
underwriting compensation under the Securities Act.  The Letter of Transmittal
states that by acknowledging that it will deliver and by delivering a
prospectus, a broker-dealer will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act.

  For a period of 180 days after the Expiration Date we will promptly send
additional copies of this prospectus and any amendment or supplement to this
prospectus to any broker-dealer that requests such documents in the Letter of
Transmittal.  We have agreed to pay all expenses incident to the Exchange Offer
(including the expenses of one counsel for the holders of the Notes) other than
commissions or concessions of any brokers or dealers and will indemnify the
holders of the Notes (including any broker-dealers) against certain liabilities,
including liabilities under the Securities Act.

  The Exchange Notes are new securities with no established trading market.  We
do not intend to list the Exchange Notes on any securities exchange, but the Old
Notes have been designated for trading in the PORTAL market.  We cannot assure
you that a liquid market will develop for the Exchange Notes, that you will be
able to sell your Exchange Notes at a particular time or that the prices that
you receive when you sell will be favorable.  Future trading prices of the
Exchange Notes will depend on many factors, including our operating performance
and financial condition, prevailing interest rates and the market for similar
securities.

                                 LEGAL MATTERS

  Certain legal matters with regard to the validity of the Notes will be passed
upon for us by McDermott, Will & Emery, New York, New York.  Mr. Sullivan, our
Executive Vice President, Chief Financial Officer and a member of our Board is
counsel to McDermott, Will & Emery. Mr. Sullivan owns certain shares of our
capital stock.

                                    EXPERTS

  The consolidated balance sheets as of December 31, 1997 and 1998, and the
consolidated statements of operations, changes in stockholders' equity
(deficit), and cash flows for the period July 29, 1996 (date of inception) to
December 31, 1996, and for the years ended December 31, 1997 and 1998, included
in this prospectus, have been so included in reliance on the report of
PricewaterhouseCoopers LLP, independent accountants, given on the authority of
said firm as experts in accounting and auditing.

                             AVAILABLE INFORMATION

  We have filed with the SEC a registration statement on Form S-4 under the
Securities Act with respect to the Exchange Notes here offered.  As permitted by
the rules and regulations of the SEC, this prospectus omits certain information,
exhibits and undertakings contained in the registration statement.  For further
information with respect to us and the Exchange Notes, you should review the
registration statement, including the exhibits and the financial statements to
such registration statement, notes

                                     -124-
<PAGE>

and schedules filed as a part of such registration statement. As a result of the
Exchange Offer, we will become subject to the informational requirements of the
Exchange Act. The registration statement and the exhibits and schedules to such
registration statement, as well as the periodic reports and other information
filed with the SEC, may be inspected and copied at the Public Reference Section
of the SEC at Room 1024, Judiciary Plaza, 450 Fifth Street, NW, Washington, DC
20549 and at the regional offices of the SEC located at 7 World Trade Center,
Suite 1300, New York, New York 10048. Copies of such materials may be obtained
from the Public Reference Section of the SEC, Room 1024, Judiciary Plaza, 450
Fifth Street, NW, Washington DC 20549, and its public reference facilities in
New York, New York at the prescribed rates. You may obtain information as to the
operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The
SEC maintains a Web site at http://www.sec.gov that contains periodic reports,
proxy and information statements and other information regarding registrants
that file documents electronically with the SEC. Statements contained in this
prospectus as to the contents of any contract or other document are not
necessarily complete, and in each instance reference is made to the copy of such
contract or document filed as an exhibit to the registration statement, each
such statement being qualified in all respects by such reference. Under the
indenture governing the Notes, we have agreed to file with the SEC and provide
to the holders of the Notes annual reports and the information, documents and
other reports which are specified in Section 13 and 15(d) of the Exchange Act.

                                     -125-
<PAGE>

                         GLOSSARY OF SELECTED TERMS

ANALOG.................. A method of transmission where the wave form of the
                         output signal is analogous to the wave form of the
                         input signal.

BANDWIDTH............... The number of bits of information which can move
                         through a communications medium in a given amount of
                         time; the capacity of a telecommunications network to
                         carry voice, data and video information.

BASE STATION............ A fixed site with network equipment that is used for
                         radio frequency communications with mobile stations,
                         and is part of a cell, or sector within a cell.

BLOCK................... The distinct radio frequency block in which one-way
                         radio applications, such as paging or beeper services,
                         and two-way radio applications such as wireless
                         communications, cellular telephone and ESMR networks,
                         are licensed and operated. Blocks are categorized as A-
                         , B- C-, D-, E- or F- Blocks. A- and B- Blocks are each
                         PCS 30 MHz licenses covering an MTA. C- Block is a PCS
                         30 MHz license covering a BTA. D-, E- and F- Block are
                         each PCS 10 MHz licenses covering a BTA.

BTA..................... One of the 493 basic trading areas, which are smaller
                         than MTAs, into which the licensing for broadband PCS
                         has been divided based on the geographic divisions in
                         the 1992 Rand McNally Commercial Atlas & Marketing
                         Guide, as modified by the FCC.

CALLER ID............... Caller identification. A service to telephone customers
                         that allows each such customer to know the identity of
                         incoming callers.

CDMA.................... Code division multiple access. A digital spread-
                         spectrum wireless technology which allows a large
                         number of users to access a single frequency band that
                         assigns a code to all speech bits, sends a scrambled
                         transmission of the encoded speech over the air, and
                         reassembles the speech to its original format.

CELL SITE............... The location of a transmitting/receiving station
                         serving a given geographic area in a cellular
                         communications system.

CELLULAR................ Domestic public cellular radio communications service
                         authorized by the FCC in the 824-893 MHz band, in which
                         each of two licensees per market employs 25 MHz of
                         spectrum to provide wireless services.

CMRS.................... Commercial mobile radio service.

COVERED POPS............ The number of Pops in a defined area for whom a
                         cellular signal is accessible.

DIGITAL................. A method of storing, processing and transmitting
                         information through the use of distinct electronic or
                         optical pulses that represent the binary digits 0 and
                         1. Digital transmission and switching technologies
                         employ a sequence of discrete, distinct pulses to
                         represent information, as opposed to the continuously
                         variable analog signal. Digital wireless networks use
                         digital transmission.

DUAL-MODE............... A wireless phone which is capable of operating on both
                         digital and analog technologies.

ESMR.................... Enhanced specialized mobile radio. A radio
                         communications system that employs digital technology
                         with multi-site configuration that permits frequency
                         reuse, offering enhanced dispatch services to
                         traditional analog SMR users.

FREQUENCY............... The number of cycles per second, measured in hertz, of
                         a periodic oscillation or wave in radio propagation.

                                     -126-
<PAGE>

GSM..................... Global system for mobile communications. The standard
                         digital cellular telephone service in Europe and Japan,
                         guided by a set of standards specifying the
                         infrastructure for digital cellular service, including
                         the radio interface (900 MHz), switching, signaling and
                         intelligent network.

HAND-OFF................ The act of transferring communication with a mobile
                         unit from one base station to another. A hand-off
                         transfers a call from the current base station to the
                         new base station. A "soft" hand-off establishes
                         communications with a new cell before terminating
                         communications with the old cell.

INTERCONNECTION......... Any variety of arrangements that permits the connection
                         of communications equipment to a common carrier network
                         such as a public switched telephone network, and which
                         defines the terms of revenue-sharing. Terms of
                         interconnection are either negotiated between the
                         network operators or imposed by regulatory authorities.

LICENSED POPS........... The number of Pops in the area covered by a license
                         (cellular or PCS).

MHZ..................... Megahertz. A unit of measurement of bandwidth in the
                         radiowave spectrum.

MICROWAVE RELOCATION.... The transferal of the business and public safety
                         agencies which currently utilize radio spectrum within
                         or adjacent to the spectrum allocated to PCS licensees
                         by the FCC.

MTA..................... One of the major trading areas into which the licensing
                         for the A- and B-Blocks of broadband PCS spectrum has
                         been divided based on the geographic divisions in the
                         Rand McNally 1992 Commercial Atlas & Guide, as modified
                         by the FCC.

NOC..................... A network operations center from which a wireless
                         communications network is monitored and maintained.

PBX..................... Private branch exchange.

POPS.................... A shorthand abbreviation for the population covered by
                         a license or group of licenses.

RESELLER................ A provider of PCS services that does not hold an FCC
                         PCS license or own PCS facilities. The reseller
                         purchases blocks of PCS numbers and capacity from a
                         licensed carrier and resells service through its own
                         distribution network to the public. Consequently, a
                         reseller is both a customer of PCS licensee's services
                         and a competitor of that licensee.

ROAMING................. A service offered by mobile communications network
                         operators which allows a subscriber to use his or her
                         handset while in the service area of another carrier.
                         Roaming requires an agreement between operators of
                         different individual markets to permit customers of
                         either operator to access the other's system.

SMR..................... Specialized mobile radio. A two-way analog mobile radio
                         telephone system typically used for dispatch services
                         such as truck and taxi fleets.

SPECTRUM................ The range of electromagnetic frequencies available for
                         use for telecommunications services.

SWITCH.................. A device that opens or closes circuits or selects the
                         paths or circuits to be used for transmission of
                         information. Switching is the process of
                         interconnecting circuits to form a transmission path
                         between users.


                                     -127-
<PAGE>

TDMA.................... Time division multiple access. A digital spread-
                         spectrum technology which allocates a discrete amount
                         of frequency bandwidth to each user to permit more than
                         one simultaneous conversation on a single radio
                         frequency channel.

TRI-MODE................ A wireless phone which is capable of operating on
                         either different digital protocols or both digital and
                         analog technologies.

WIRELESS LOCAL LOOP..... A system that eliminates the need for a wire (loop)
                         connecting users to the public switched telephone
                         network, which is used in conventional wired telephone
                         systems, by transmitting voice messages over radio
                         waves for the "last mile" connection between the
                         location of the customer's telephone and a base station
                         connected to the network equipment.

                                     -128-
<PAGE>

         TELECORPS PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                                    INDEX



Historical Financial Statements                                            Page
- -------------------------------                                            ----

Report of Independent Accountants                                           F-2
Consolidated Balance Sheets                                                 F-3
Consolidated Statements of Operations                                       F-4
Consolidated Statement of Changes in Stockholders' Equity (Deficit)         F-5
Consolidated Statements of Cash Flows                                       F-6
Notes to Consolidated Financial Statements                                  F-8

Unaudited Pro forma Financial Statements
- ----------------------------------------

Unaudited Pro Forma Condensed Consolidated Balance Sheet                    F-38
Notes to Unaudited Pro Forma Condensed Consolidated Balance Sheet           F-40

                                      F-1
<PAGE>

                       Report of Independent Accountants
                       ---------------------------------



To the Board of Directors and Stockholders
TeleCorp PCS Inc. and Subsidiaries and Predecessor Company:


In our opinion, the accompanying consolidated balance sheets and the related
consolidated statements of operations, changes in stockholders' equity (deficit)
and cash flows present fairly, in all material respects, the financial position
of TeleCorp PCS Inc. and Subsidiaries and Predecessor Company (the Company) at
December 31, 1997 and 1998, and the consolidated results of their operations and
their cash flows for the period July 29, 1996 (date of inception) to December
31, 1996, and for the years ended December 31, 1997 and 1998, in conformity with
generally accepted accounting principles.  These financial statements are the
responsibility of the Company's management; our responsibility is to express an
opinion on these financial statements based on our audits.  We conducted our
audits of these statements in accordance with generally accepted auditing
standards which require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements, assessing the
accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation.  We believe that our
audits provide a reasonable basis for the opinion expressed above.



PricewaterhouseCoopers LLP

McLean, Virginia
March 8, 1999, except for the information in Note 15,
for which the date is June 15, 1999

                                      F-2
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                          CONSOLIDATED BALANCE SHEETS
                                   ________

                                    ASSETS


<TABLE>
<CAPTION>
                                                                                                                      March 31,
                                                                         December 31                 March 31,          1999
                                                                -------------------------------        1999           pro forma
Current assets:                                                    1997                1998          (unaudited)     (unaudited)
                                                                -------------  --------------     --------------  ---------------
<S>                                                             <C>            <C>                <C>              <C>
   Cash and cash equivalents                                    $   2,566,685  $  111,732,841     $   11,210,696   $  230,047,360
   Accounts receivable, net                                                 -               -          3,657,709        3,657,709
   Inventory                                                                -         778,235          7,701,032        7,701,032
   Prepaid expenses                                                         -       2,185,444          2,471,605        2,471,605
   Other current assets                                                73,468       1,218,263            157,249          157,249
                                                                -------------  --------------     --------------   --------------
         Total current assets                                       2,640,153     115,914,783         25,198,291      244,034,955

   Property and equipment, net                                      3,609,274     197,468,622        262,653,787      270,653,787
   PCS licenses and microwave relocation costs, net                10,018,375     118,107,256        117,531,516      234,742,756
   Intangible assets - AT&T agreements, net                                 -      26,285,612         25,369,334       42,679,334
   Deferred financing costs, net                                            -       8,584,753          8,490,330       19,065,277
   FCC deposit                                                              -               -         17,818,549                -
   Other assets                                                        26,673         283,006            841,730        3,597,668
                                                                -------------  -------------      --------------   --------------
         Total assets                                           $  16,294,475  $  466,644,032     $  457,903,537   $  814,773,777
                                                                =============  ==============     ==============   ==============

                      LIABILITIES, MANDATORILY REDEEMABLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT)

Current liabilities:
    Accounts payable                                             $   3,202,295 $   14,591,922     $   28,247,873 $    28,247,873
    Accrued expenses                                                   824,164     94,872,262         46,757,448      46,757,448
    Microwave relocation obligation, current portion                         -      6,636,369          5,404,557       5,404,557
    Long-term debt, current portion                                  4,881,073              -                  -               -
    Accrued interest, current portion                                  389,079      4,490,553          4,154,008       4,154,008
                                                                 ------------- --------------     -------------- ---------------
         Total current liabilities                                   9,296,611    120,591,106         84,563,886      84,563,886

Long-term debt                                                       7,727,322    243,385,066        293,889,463     610,578,893
Microwave relocation obligation                                              -      2,481,059          2,525,875       2,525,875
Accrued expenses                                                             -              -          3,362,364       3,362,364
Deferred rent                                                                -        196,063            319,726         319,726
                                                                 ------------- --------------     -------------- ---------------
         Total liabilities                                          17,023,933    366,653,294        384,661,314     701,350,744
                                                                 ------------- --------------     -------------- ---------------

Mandatorily redeemable preferred stock at
 carrying value, issued 367; 255,999; 256,206
 (unaudited) and 382,803 (pro forma unaudited) shares,
 respectively, and outstanding, 367; 255,215; 254,845
 (unaudited); and 381,648 (pro forma unaudited) shares,
 respectively, (liquidation preference $249,398,289 (unaudited)      4,144,340    240,408,879        245,131,494     362,660,656
as of March 31, 1999)
Deferred compensation                                                        -         (4,111)           (11,078)       (304,514)
Treasury stock, none; 784; 1,155 (unaudited) and 1,155 (pro forma
 unaudited) shares, respectively, at cost                                    -             (8)               (12)            (12)
Preferred stock subscriptions receivable                                     -    (75,914,054)       (72,413,769)   (149,499,135)
                                                                 ------------- --------------     -------------- ---------------
      Total mandatorily redeemable preferred stock, net              4,144,340    164,490,706        172,706,635     212,856,995
                                                                 ------------- --------------     -------------- ---------------

Commitments and contingencies

Stockholders' equity (deficit):
 Series F preferred stock, par value $.01 per share,
 none, 33,361; 33,361 (unaudited) and 48,261 (pro forma
 unaudited) shares issued and outstanding, respectively
 (liquidation preference; $333 (unaudited)
 as of March 31, 1999)                                                       -            333                333             482
Common stock, par value $.01 per share, issued 19,335; 159,733;
 159,733 (unaudited), and 243,141 (pro forma unaudited) shares,
 respectively, and outstanding 19,335; 157,946; 157,100 (unaudited)        856          1,597              1,597           2,431
 and 240,508 (pro forma unaudited) shares, respectively
Additional paid-in capital                                                   -        188,374            187,498         433,908
 Deferred compensation                                                       -         (7,177)            (5,306)        (25,015)
Common stock subscriptions receivable                                        -        (86,221)           (86,221)       (283,455)
 Treasury stock, none; 1,787; 2,633 (unaudited) and 2,633
 (pro forma unaudited) shares, respectively, at cost                         -            (18)               (26)            (26)
Accumulated deficit                                                 (4,874,654)   (64,596,856)       (99,562,287)    (99,562,287)
                                                                 ------------- --------------     -------------- ---------------
      Total stockholders' equity (deficit)                          (4,873,798)   (64,499,968)       (99,464,412)    (99,433,962)
                                                                 ------------- --------------     -------------- ---------------
      Total liabilities, mandatorily redeemable
         preferred stock and stockholders' equity (deficit)      $  16,294,475 $  466,644,032     $  457,903,537 $   814,773,777
                                                                 ============= ==============     ============== ===============
</TABLE>
                    The accompanying notes are an integral part
                    of these consolidated financial statements.

                                       F-3
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                     CONSOLIDATED STATEMENTS OF OPERATIONS

                                 __________

<TABLE>
<CAPTION>
                                            For the period                                  For the three   For the three
                                            July 29, 1996                                      months          months
                                               (date of      For the year   For the year       ended           ended
                                            inception) to       ended          ended          March 31,       March 31,
                                            December 31,     December 31,   December 31,        1998            1999
                                                1996            1997           1998          (unaudited)     (unaudited)
                                            --------------   ------------   ------------    -------------   -------------
<S>                                         <C>              <C>            <C>             <C>             <C>
Revenue:
 Service revenue                            $            -   $          -   $          -    $           -   $     507,285
 Equipment revenue                                       -              -              -                -       1,815,224
 Roaming revenue                                         -              -         29,231                -       1,940,317
                                            --------------   ------------   ------------    -------------   -------------
       Total revenue                        $            -   $          -   $     29,231    $           -   $   4,262,826
                                            --------------   ------------   ------------    -------------   -------------

Operating expenses:
 Cost of revenue                                         -              -              -                -       2,829,448
 Operations and development                              -              -      9,772,485                -       7,352,578
 Selling and marketing                               9,747        304,062      6,324,666          369,392       8,040,922
 General and administrative                        515,146      2,637,035     26,239,119        2,246,456      10,278,338
 Depreciation and amortization                          75         10,625      1,583,864           39,129       3,052,980
                                            --------------   ------------   ------------    -------------   -------------

       Total operating expenses                    524,968      2,951,722     43,920,134        2,654,977      31,554,266
                                            --------------   ------------   ------------    -------------   -------------

       Operating loss                             (524,968)    (2,951,722)   (43,890,903)      (2,654,977)    (27,291,440)

Other (income) expense:
 Interest expense                                        -        396,362     11,934,263          132,400       3,715,129
 Interest income                                         -        (12,914)    (4,697,233)         (42,256)       (741,429)
 Other expense                                           -              -         27,347                -          70,187
                                            --------------   ------------   ------------    -------------   -------------

       Net loss                             $     (524,968)  $ (3,335,170)  $(51,155,280)   $  (2,745,121)  $ (30,335,327)

       Accretion of mandatorily
          redeemable preferred stock              (288,959)      (725,557)    (8,566,922)        (103,608)     (4,630,104)
                                            --------------   ------------   ------------    -------------   -------------

       Net loss attributable to
          common equity                     $     (813,927)  $ (4,060,727)  $(59,722,202)   $  (2,848,729)  $ (34,965,431)
                                            ==============   ============   ============    =============   =============
</TABLE>



                 The accompanying notes are an integral part
                  of these consolidated financial statements.

                                      F-4
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY


                     CONSOLIDATED STATEMENT OF CHANGES IN

                        STOCKHOLDERS' EQUITY (DEFICIT)
<TABLE>
<CAPTION>

                                                           Series F
                                                       preferred stock            Common stock           Additional
                                                    ----------------------   -----------------------      paid-in
                                                     Shares         Amount    Shares         Amount       Capital
                                                    --------        ------   --------       --------     ----------
<S>                                                 <C>             <C>      <C>            <C>          <C>
Initial capitalization for cash                            -        $    -      8,750       $  2,000     $        -
Issuance of common stock for cash                          -             -     34,374              -              -
Accretion of mandatorily redeemable preferred
 stock                                                     -             -          -              -              -
Net loss                                                   -             -          -              -              -
                                                    --------        ------   --------       --------     ----------
Balance, December 31, 1996                                 -             -     43,124          2,000              -
Issuance of common stock for cash                          -             -      6,875              -              -
Accretion of mandatorily redeemable preferred
 stock                                                     -             -          -              -              -
Noncash redemption of equity interests                     -             -    (30,664)        (1,144)             -
Net loss                                                   -             -          -              -              -
                                                    --------        ------   --------       --------     ----------
Balance, December 31, 1997                                 -             -     19,335            856              -
Noncash redemption of equity interests                     -             -    (19,335)          (856)             -
Issuance of preferred and common stock for cash,
 Licenses and AT&T Agreements                         33,361           333    149,715          1,497        180,243
Accretion of mandatorily redeemable preferred
 stock                                                     -             -          -              -              -
Noncash issuance of restricted stock to employees          -             -     10,018            100          9,918
Repurchase of common stock for cash                        -             -          -              -         (1,787)
Amortization of deferred compensation                      -             -          -              -              -

Net loss                                                   -             -          -              -              -
                                                    --------        ------   --------       --------     ----------
Balance, December 31, 1998                            33,361           333    159,733          1,597        188,374
Accretion of mandatorily redeemable preferred
 stock (unaudited)                                         -             -          -              -              -
Noncash issuance of restricted stock to employees
 (unaudited)                                               -             -          -              -            428
Amortization of deferred compensation (unaudited)          -             -          -              -              -
Repurchase of common stock for cash (unaudited)            -             -          -              -         (1,304)
Net loss (unaudited)                                       -             -          -              -              -
                                                    --------        ------   --------       --------     ----------
Balance, March 31, 1999 (unaudited)                 $ 33,361        $  333    159,733       $  1,597     $  187,498
                                                    ========        ======   ========       ========     ==========

<CAPTION>
                                                                      Common
                                                                      stock
                                                   Deferred       subscriptions           Treasury stock          Accumulated
                                                                                    --------------------------
                                                 Compensation       receivable         Shares        Amount         deficit
                                                 ------------------------------     ------------   -----------    ------------
<S>                                              <C>               <C>              <C>            <C>            <C>
Initial capitalization for cash                             -                 -                -             -               -
Issuance of common stock for cash                           -                 -                -             -               -
Accretion of mandatorily redeemable preferred
 stock                                                      -                 -                -             -        (228,959)
Net loss                                                    -                 -                -             -        (524,968)
                                                 ------------    --------------     ------------   -----------    -------------
Balance, December 31, 1996                                  -                 -                -             -        (813,927)
Issuance of common stock for cash                           -                 -                -             -               -
Accretion of mandatorily redeemable preferred
 stock                                                      -                 -                -             -        (725,557)
Noncash redemption of equity interests                      -                 -                -             -               -
Net loss                                                    -                 -                -             -      (3,335,170)
                                                 ------------    --------------     ------------   -----------    ------------
Balance, December 31, 1997                                  -                 -                -             -      (4,874,654)
Noncash redemption of equity interests                      -                 -                -             -               -
Issuance of preferred and common stock for cash,
 Licenses and AT&T Agreements                               -           (86,221)               -             -               -
Accretion of mandatorily redeemable preferred
 stock                                                      -                 -                -             -      (8,566,922)
Noncash issuance of restricted stock to employees     (10,018)                -                -             -               -
Repurchase of common stock for cash                     1,787                 -           (1,787)          (18)
Amortization of deferred compensation                   1,054                 -                -             -               -

Net loss                                                    -                 -                -             -     (51,155,280)
                                                 ------------    --------------     ------------   -----------    ------------
Balance, December 31, 1998                             (7,177)          (86,221)          (1,787)          (18)    (64,596,856)
Accretion of mandatorily redeemable preferred
 stock (unaudited)                                          -                 -                -             -      (4,630,104)
Noncash issuance of restricted stock to employees
 (unaudited)                                             (433)                -              471             5               -
Amortization of deferred compensation (unuadited)       1,000                 -                -             -               -
Repurchase of common stock for cash (unuadited)         1,304                 -           (1,317)          (13)              -
Net loss (unaudited)                                        -                 -                -             -     (30,335,327)
                                                 ------------    --------------     ------------   -----------    ------------
Balance, March 31, 1999 (unaudited)                    (5,306)   $      (86,221)     $    (2,633)   $      (26)   $(99,562,287)
                                                 ============    ==============     ============   ===========    ============

<CAPTION>
                                                            Total
                                                         ------------
<S>                                                      <C>
Initial capitalization for cash                          $      2,000
Issuance of common stock for cash                                   -
Accretion of mandatorily redeemable preferred
   stock                                                     (228,959)
Net loss                                                     (524,968)
                                                         ------------
Balance, December 31, 1996                                   (811,927)
Issuance of common stock for cash                                   -
Accretion of mandatorily redeemable preferred
   stock                                                     (725,557)
Noncash redemption of equity interests                         (1,144)
Net loss                                                   (3,335,170)
                                                         ------------
Balance, December 31, 1997                                 (4,873,798)
Noncash redemption of equity interests                           (856)
Issuance of preferred and common stock for
 cash,                                                     (8,566,922)
 Licenses and AT&T Agreements                                  95,852
Accretion of mandatorily redeemable preferred
   stock                                                   (8,566,922)
Noncash issuance of restricted stock to                             -
 employees
Repurchase of common stock for cash                               (18)
Amortization of deferred compensation                           1,054
Net loss                                                  (51,155,280)
                                                         ------------
Balance, December 31, 1998                                (64,499,968)
Accretion of mandatorily redeemable preferred
 stock (unaudited)                                         (4,630,104)
Noncash issuance of restricted stock to employees
 (unaudited)                                                        -
Amortization of deferred compensation (unaudited)               1,000
Repurchase of common stock for cash (unaudited)                   (13)
Net loss (unaudited)                                      (30,335,327)
                                                         ------------
Balance, March 31, 1999 (unaudited)                      $(99,464,412)
                                                         ============
</TABLE>

                 The accompanying notes are an integral part
                  of these consolidated financial statements.

                                      F-5
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                     CONSOLIDATED STATEMENTS OF CASH FLOWS

                                  __________


<TABLE>
<CAPTION>
                                                                         For the period
                                                                         July 29, 1996
                                                                           (date of            For the year       For the year
                                                                         inception) to             Ended              Ended
                                                                         December 31,          December 31,       December 31,
                                                                              1996                 1997               1998
                                                                        ---------------       --------------     --------------
<S>                                                                     <C>                   <C>                <C>
Cash flows from operating activities:
 Net loss                                                               $      (524,968)      $  (3,335,170)     $  (51,155,280)
 Adjustment to reconcile net loss to net cash used in operating
  activities:
   Depreciation and amortization                                                     75              10,625           1,583,864
   Noncash compensation expense associated with the issuance
    of common stock and preferred stock                                               -                   -               1,664
   Noncash interest expense associated with Lucent Notes                              -                   -             460,400
   Noncash general and administrative expense charge by                               -                   -             196,622
    affiliates
   Amortization of deferred financing costs                                           -                   -             524,924
   Amortization of discount on notes payable                                          -             134,040             197,344
 Changes in cash flow from operations resulting from changes in
  assets and liabilities:
   Accounts receivable                                                                -                   -                   -
   Inventory                                                                          -                   -            (778,235)
   Prepaid expenses                                                                   -                   -          (2,185,444)
   Other current assets                                                         (21,877)            (51,591)         (1,144,795)
   Other assets                                                                       -             (26,673)           (256,333)
   Accounts payable                                                              98,570             618,889          11,389,627
   Accrued expenses                                                                   -                   -           9,145,111
   Deferred rent                                                                      -                   -             196,063
   Accrued interest                                                                   -             257,682           2,046,432
                                                                        ---------------       -------------      --------------
      Net cash used in operating activities                                    (448,200)         (2,392,198)        (29,778,036)
                                                                        ---------------       -------------      --------------
Cash flows from investing activities:
 Expenditures for network under development, wireless network,
 property and equipment                                                            (904)         (1,134,234)       (107,542,189)

 Capitalized interest on network under development and wireless                       -                   -            (227,000)
 network
 Expenditures for microwave relocation                                                -                   -          (3,339,410)
 Purchase of PCS licenses                                                             -                   -         (21,000,000)
 Deposit on PCS licenses                                                     (7,500,000)                  -                   -
 Partial refund of deposit on PCS licenses                                            -           1,561,702                   -
                                                                        ---------------       -------------      --------------
      Net cash (used in) provided by investing activities                    (7,500,904)            427,468        (132,108,599)
                                                                        ---------------       -------------      --------------
Cash flows from financing activities:
 Proceeds from sale of mandatorily redeemable preferred stock                 7,500,000           1,500,000          26,661,420
 Receipt of preferred stock subscription receivable                                   -                   -                   -
 Direct issuance costs from sale of mandatorily redeemable
 preferred stock                                                                      -                   -          (1,027,694)
 Proceeds from sale of common stock                                               2,000                   -              38,305
 Proceeds from long-term debt                                                   498,750           2,808,500         257,491,500
 Purchases of treasury shares                                                         -                   -                 (26)
 Payments on notes payable                                                            -                   -          (2,072,573)
 Payments of deferred financing costs                                                 -                   -          (9,109,677)
 Net increase (decrease) in amounts due to affiliates                                 -             171,269            (928,464)
                                                                        ---------------       -------------      --------------
      Net cash provided by financing activities                               8,000,750           4,479,769         271,052,791
                                                                        ---------------       -------------      --------------
Net increase (decrease) in cash and cash equivalents                             51,646           2,515,039         109,166,156
Cash and cash equivalents at the beginning of period                                  -              51,646           2,566,685
                                                                        ---------------       -------------      --------------
Cash and cash equivalents at the end of period                          $        51,646       $   2,566,685      $  111,732,841
                                                                        ===============       =============      ==============

<CAPTION>
                                                                               For the three          For the three
                                                                               months ended           months ended
                                                                                March 31,               March 31,
                                                                                   1998                   1999
                                                                                (unaudited)            (unaudited)
                                                                              ---------------       ----------------
<S>                                                                           <C>                   <C>
Cash flows from operating activities:
 Net loss                                                                     $    (2,745,121)      $     (30,335,327)
 Adjustment to reconcile net loss to net cash used in operating
  activities:
   Depreciation and amortization                                                       39,129               3,051,280
   Noncash compensation expense associated with the issuance
    of common stock and preferred stock                                                     -                  86,547
   Noncash interest expense associated with Lucent Notes                                    -                 448,676
   Noncash general and administrative expense charge by                                     -                       -
    affiliates
   Amortization of deferred financing costs                                                 -                 250,241
   Amortization of discount on notes payable                                           54,369                  55,721
 Changes in cash flow from operations resulting from changes in
  assets and liabilities:
   Accounts receivable                                                                      -              (3,057,672)
   Inventory                                                                                -              (6,922,797)
   Prepaid expenses                                                                   (82,771)               (286,161)
   Other current assets                                                                26,280               1,061,014
   Other assets                                                                       (59,363)               (558,724)
   Accounts payable                                                                   672,240              13,655,951
   Accrued expenses                                                                         -               2,675,664
   Deferred rent                                                                       65,211                 123,662
   Accrued interest                                                                    77,556              (1,758,327)
                                                                              ---------------       -----------------
      Net cash used in operating activities                                        (1,952,470)            (21,510,252)
                                                                              ---------------       -----------------
Cash flows from investing activities:
 Expenditures for network under development, wireless network,
 property and equipment                                                            (4,086,249)           (112,233,615)

 Capitalized interest on network under development and wireless                             -              (1,273,000)
 network
 Expenditures for microwave relocation                                               (275,001)             (1,186,995)
 Purchase of PCS licenses                                                                   -                       -
 Deposit on PCS licenses                                                                    -             (17,818,549)
 Partial refund of deposit on PCS licenses                                                  -                       -
                                                                              ---------------       -----------------
      Net cash (used in) provided by investing activities                          (4,361,250)           (132,512,159)
                                                                              ---------------       -----------------
Cash flows from financing activities:
 Proceeds from sale of mandatorily redeemable preferred stock                               -                       -
 Receipt of preferred stock subscription receivable                                         -               3,500,285
 Direct issuance costs from sale of mandatorily redeemable
 preferred stock                                                                            -                       -
 Proceeds from sale of common stock                                                         -                       -
 Proceeds from long-term debt                                                      13,863,989              50,000,000
 Purchases of treasury shares                                                               -                     (19)
 Payments on notes payable                                                                  -                       -
 Payments of deferred financing costs                                                       -                       -
 Net increase (decrease) in amounts due to affiliates                                (480,253)                      -
                                                                              ---------------       -----------------
      Net cash provided by financing activities                                    13,383,736              53,500,266
                                                                              ---------------       -----------------
Net increase (decrease) in cash and cash equivalents                                7,070,016            (100,522,145)
Cash and cash equivalents at the beginning of period                                2,566,685             111,732,841
                                                                              ---------------       -----------------
Cash and cash equivalents at the end of period                                $     9,636,701       $      11,210,696
                                                                              ===============       =================
</TABLE>

                  The accompanying notes are an integral part
                  of these consolidated financial statements.

                                      F-6
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

               CONSOLIDATED STATEMENTS OF CASH FLOWS (continued)

                                    _______


<TABLE>
<CAPTION>
                                                                  For the period
                                                                  July 29, 1996                                     For the three
                                                                     (date of      For the year     For the year    months ended
                                                                   inception) to      ended            ended          March 31,
                                                                    December 31    December 31,     December 31,        1999
                                                                        1996          1997              1998         (unaudited)
                                                                  --------------   ------------     -------------   -------------
<S>                                                               <C>              <C>              <C>             <C>
Supplemental disclosure of cash flow information:
  Cash paid for income taxes                                      $            -   $          -     $           -   $           -
  Cash paid for interest                                          $            -   $          -     $   9,785,829   $           -

Supplemental disclosure of non-cash investing and financing
 activities:
  Network under development, wireless netowork and microwave
   relocation costs financed through accounts payable and
   accrued expenses                                               $            -   $  2,484,836     $  98,091,667   $     824,999



Issuance of mandatorily redeemable preferred stock and
 preferred stock in exchange for PCS licenses and AT&T            $            -   $          -     $ 100,900,000   $           -
 agreements

Issuance of mandatorily redeemable preferred stock and
 common stock in exchange for stock subscriptions receivable      $            -   $          -     $  76,000,275   $           -

U.S. Government financing of PCS licenses                         $            -   $  9,192,938     $           -   $           -
Discount on U.S. Government financing                             $            -   $  1,599,656     $           -   $           -
Conversion of notes payable to stockholders into preferred        $            -   $    498,750     $  25,300,000   $           -
 stock
Accretion of preferred stock dividends                            $      288,959   $    725,557     $   8,566,922   $     103,608
Elimination of equity interests in Holding for equity
 interests in TeleCorp                                            $            -   $          -     $   4,369,680   $           -

Redemption of equity interests                                    $            -   $  6,368,926     $           -   $           -
Distribution of net assets to affiliates                          $            -   $  3,644,602     $           -   $           -
Capitalized interest                                              $            -   $    131,397     $   2,055,043   $     198,009

<CAPTION>
                                                                     For the three
                                                                     months ended
                                                                       March 31,
                                                                         1998
                                                                      (unaudited)
                                                                     -------------
<S>                                                                  <C>
Supplemental disclosure of cash flow information:
  Cash paid for income taxes                                         $           -
  Cash paid for interest                                             $   4,201,963

Supplemental disclosure of non-cash investing and financing
 activities:
  Network under development, wireless netowork and microwave
   relocation costs financed through accounts payable and
   accrued expenses                                                  $   8,043,467



Issuance of mandatorily redeemable preferred stock and
 preferred stock in exchange for PCS licenses and AT&T               $           -
 agreements

Issuance of mandatorily redeemable preferred stock and
 common stock in exchange for stock subscriptions receivable         $           -

U.S. Government financing of PCS licenses                            $           -
Discount on U.S. Government financing                                $           -
Conversion of notes payable to stockholders into preferred           $           -
 stock
Accretion of preferred stock dividends                               $   4,630,104
Elimination of equity interests in Holding for equity
 interests in TeleCorp                                               $           -

Redemption of equity interests                                       $           -
Distribution of net assets to affiliates                             $           -
Capitalized interest                                                 $   1,421,782
</TABLE>

                  The accompanying notes are an integral part
                  of these consolidated financial statements.

                                      F-7
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                 _____________


1.   Organization

     TeleCorp Holding Corp., Inc. (Holding) was incorporated in the State of
     Delaware on July 29, 1996 (date of inception). Holding was formed to
     participate in the Federal Communications Commission's (FCC) Auction of F-
     Block Personal Communications Services (PCS) licenses (the Auction) in
     April 1997. Holding successfully obtained licenses in the New Orleans,
     Memphis, Beaumont, Little Rock, Houston, Tampa, Melbourne and Orlando Basic
     Trading Areas (BTAs). Holding qualifies as a Designated Entity and Very
     Small Business under Part 24 of the rules of the FCC applicable to
     broadband PCS.

     In April 1997, Holding entered into an agreement to transfer the PCS
     licenses for the Houston, Tampa, Melbourne and Orlando BTAs to four newly-
     formed entities created by Holding's existing stockholder group: THC of
     Houston, Inc.; THC of Tampa, Inc.; THC of Melbourne, Inc.; and THC of
     Orlando, Inc. These licenses were transferred along with the related
     operating assets and liabilities in exchange for investment units
     consisting of Class A, B and C common stock and Series A preferred stock in
     August 1997. Concurrently, Holding distributed the investment units, on a
     pro rata basis, in a partial stock redemption to Holding's existing
     stockholder group. As a result of this distribution, Holding no longer
     retains any ownership equity interest in the newly-formed entities. Because
     the above transaction was non-monetary in nature and occurred between
     entities of the same stockholder group, the transaction was accounted for
     at historical cost.

     TeleCorp PCS, Inc. (TeleCorp) was incorporated in the State of Delaware on
     November 14, 1997 by the controlling stockholders of Holding. TeleCorp will
     be the exclusive provider of wireless mobility services in its licensed
     regions in connection with a strategic alliance with AT&T Corporation and
     its affiliates (collectively AT&T) (see Note 6). Upon finalization of the
     AT&T Transaction, Holding became a wholly-owned subsidiary of TeleCorp.


2.   Summary of Significant Accounting Policies

     Basis of presentation
     Holding was formed to explore various business opportunities in the
     wireless telecommunications industry. TeleCorp was formed to continue the
     activity of Holding through its strategic alliance with AT&T. Since
     inception, Holding's and TeleCorp's activities have consisted principally
     of hiring a management team, raising capital, negotiating strategic
     business relationships and participating in the Auction. Consequently, for
     purposes of the accompanying financial statements, Holding has been treated
     as a "predecessor" entity. The Chief Executive Officer and President of
     Holding maintain the positions of Chief Executive Officer and Executive
     Vice President and Chief Financial Officer, respectively, of TeleCorp. In
     addition, these officers own a majority of the voting stock of TeleCorp
     and, prior to the finalization of the AT&T Transaction, owned a majority of
     the voting stock of Holding. As a result of this relationship, certain
     financing relationships and the similar nature of business activities,
     Holding and TeleCorp are considered companies under common control.
     Therefore, the accompanying financial statements incorporate the combined
     business activities of Holding and TeleCorp. Collectively, TeleCorp and
     Holding are referred to as the Company in the accompanying consolidated
     financial statements.

                                   Continued

                                      F-8
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                ______________



     Historical and pro forma loss per share, basic and diluted, have not been
     presented.

     Unaudited Interim Financial Information
     The unaudited consolidated balance sheet as of March 31, 1999, and the
     unaudited consolidated statements of operations, changes in stockholders'
     equity (deficit) and cash flows for the three months ended March 31, 1998
     and 1999, and related footnotes have been prepared in accordance with
     generally accepted accounting principles for interim financial information
     and Article 10 of Regulation S-X. Accordingly, they do not include all of
     the information and footnotes required by generally accepted accounting
     principles. In the opinion of management, all adjustments (consisting of
     only normal recurring accruals) considered necessary for the fair
     presentation have been included. Operating results for the three months
     ended March 31, 1999, are not necessarily indicative of results that may be
     expected for the year ending December 31, 1999.

     Unaudited Pro Forma Balance Sheet
     The unaudited pro forma balance sheet gives effect to certain license
     acquisitions and the issuance of high yield debt described in Note 15,
     which includes the Digital PCS, Viper Wireless, AT&T-Puerto Rico and
     Wireless 2000 transactions and the receipt of gross proceeds of
     $327,635,000 from the sale of $575,000,000 of Senior Subordinated Discount
     Notes due 2009 (the Notes) on April 23, 1999 as if they had occurred on
     March 31, 1999.

     Consolidation
     The consolidated financial statements include the accounts of the Company
     and its wholly-owned subsidiaries. All intercompany accounts and
     transactions have been eliminated in consolidation. For the quarter ended
     March 31, 1999, the Company has consolidated the results of Viper Wireless,
     Inc. (see Note 15).

     Development Stage Company
     Prior to January 1, 1999, the Company's activities principally have been
     planning and participation in the Auction, initiating research and
     development, conducting market research, securing capital and developing
     its proposed service and network. Since the Auction, the Company has been
     relying on the borrowing of funds and the issuance of common and preferred
     stock rather than recurring revenues, for its primary sources of cash flow.
     Accordingly, the Company's financial statements for all periods prior to
     January 1, 1999 were presented as a development stage enterprise, as
     prescribed by Statement of Financial Accounting Standards No. 7,
     "Accounting and Reporting by Development Stage Enterprises." In the first
     quarter of 1999, the Company commenced operations in the New Orleans,
     Memphis and Little Rock BTA's and began providing wireless mobility
     services for its customers. As a result, the Company exited the development
     stage in the first quarter ended March 31, 1999.

     The Company incurred cumulative losses through December 31, 1998 of
     approximately $55,000,000. The Company expects to continue to incur
     significant operating losses and to generate negative cash flow from
     operating activities for at least the next several years while it
     constructs its network and develops its customer base. The Company's
     ability to eliminate operating losses and to generate positive cash flow
     from operations in the future will depend upon a variety of factors, many
     of which it is unable to control. These factors

                                   Continued

                                      F-9
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                 _____________


     include: (1) the cost of constructing its network, (2) changes in
     technology, (3) changes in governmental regulations, (4) the level of
     demand for wireless communications services, (5) the product offerings,
     pricing strategies and other competitive factors of the Company's
     competitors and (6) general economic conditions. If the Company is unable
     to implement its business plan successfully, it may not be able to
     eliminate operating losses, generate positive cash flow or achieve or
     sustain profitability which would materially adversely affect its business,
     operations and financial results as well as its ability to make payments on
     its debt obligations.

     Fair Value of Financial Instruments
     The Company believes that the carrying amount of its financial instruments
     approximate fair value.

     Use of Estimates
     The preparation of financial statements in conformity with generally
     accepted accounting principles requires management to make estimates and
     assumptions that affect the reported amounts of assets and liabilities and
     disclosure of contingent assets and liabilities on the date of the
     financial statements and the reported amounts of expenses during the
     reporting period. Actual results could differ from those estimates.

     Concentration of Credit Risk
     Financial instruments that potentially subject the Company to significant
     concentrations of credit risk consist principally of cash and cash
     equivalents. The Company has invested its excess cash in overnight sweep
     accounts and U.S. Treasury obligations. The Company has not experienced any
     losses on its cash and cash equivalents.

     Cash Equivalents
     The Company considers all highly liquid instruments with a maturity from
     purchase date of three months or less to be cash equivalents. Cash
     equivalents consist of overnight sweep accounts and U.S. Treasury
     obligations.

     Revenue Recognition
     The Company earns revenue by providing wireless mobility services to both
     its subscribers and subscribers of other wireless carriers traveling in the
     Company's service area, as well as the sales of equipment and accessories.

     Wireless mobility services revenue consists of monthly access fees, airtime
     and long distance access revenue. Generally, access fees, airtime and long
     distance charges are billed monthly and are recognized when service is
     provided. Prepaid service revenue collected in advance, is recorded as
     deferred revenue and recognized as service is provided. As of March 31,
     1999, deferred revenue was insignificant.

     Roaming revenue consist of the airtime and long distance charged to the
     subscribers of other wireless carriers for use of the Company's network
     while traveling in the Company's service area and are recognized when the
     service is rendered.

                                   Continued

                                     F-10
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                 _____________


     Equipment revenue is recognized upon delivery of the equipment to the
     customer and when future obligations are no longer significant.

     PCS Licenses and Microwave Relocation Costs
     PCS licenses include costs incurred, including capitalized interest related
     to the U.S. Government financing, to acquire FCC licenses in the 1850-1990
     MHz radio frequency band. Interest capitalization on the U.S. Government
     financing began when the activities necessary to get the Company's network
     ready for its intended use were initiated. The PCS licenses are issued
     conditionally for ten years. Historically, the FCC has granted license
     renewals providing the licensees have complied with applicable rules,
     policies and the Communications Act of 1934, as amended. The Company
     believes it has complied with and intends to continue to comply with these
     rules and policies.

     As a condition of each PCS license, the FCC requires each license-holder to
     relocate existing microwave users (Incumbent) within the awarded spectrum
     to microwave frequencies of equal capacity. Microwave relocation costs
     include the actual and estimated costs incurred to relocate the Incumbent's
     microwave links affecting the Company's licensed frequencies and are
     presented in the financial statements at the estimated present value of the
     project cost, net of discount of $908,531 as of December 31, 1998. The
     microwave relocation costs were discounted using management's best estimate
     of the prevailing market interest rate at the time the relocation costs
     were incurred.

     PCS licenses, microwave relocation costs and capitalized interest consist
     of the following:

<TABLE>
<CAPTION>
                                                                                       March 31,
                                                        December 31,                    1999
                                                   1997             1998             (unaudited)
                                             -------------      --------------      --------------

            <S>                              <C>                <C>                 <C>
            PCS licenses                     $   9,886,978      $  104,736,978      $  104,736,978
            Microwave relocation costs                   -          12,456,838          11,861,063
               Capitalized interest                131,397             913,440           1,004,581
                                             -------------      --------------      --------------
                                                10,018,375         118,107,256         117,602,622
       Accumulated amortization                          -                   -             (71,106)
                                             -------------      --------------      --------------
                                             $  10,018,375      $  118,107,256      $  117,531,516
                                             =============      ==============      ==============
</TABLE>

     The Company began amortizing the cost of the PCS licenses, microwave
     relocation costs, and capitalized interest in March 1999, when PCS services
     commenced in certain BTAs. Amortization is calculated using the straight-
     line method over 40 years.

                                   Continued

                                     F-11
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                 _____________


     Property and Equipment
     Property and equipment are recorded at cost and depreciation is computed
     using the straight-line method over the following estimated useful lives:


       Computer equipment                      3 to 5 years
       Network under development and
       wireless network                        5 to 10 years upon commencement
                                               of service
       Internal use software                   3 years
       Furniture, fixtures and office          5 years
       equipment
       Leasehold improvements                  Lesser of useful life or lease
                                               term

     Expenditures for repairs and maintenance are charged to operations when
     incurred. Gains and losses from disposals, if any, are included in the
     statements of operations. Network under development includes all costs
     related to engineering, cell site acquisition, site development, interest
     expense and other development costs being incurred to ready the Company's
     network for use. Internal and external costs incurred to develop the
     Company's billing, network and financial systems during the application
     development stage are capitalized as internal use software. Training costs
     and all post implementation internal and external costs are expensed as
     incurred.

     Intangible assets - AT&T Agreements
     The AT&T Agreements consist of the fair value of various agreements with
     AT&T (see Note 6) exchanged for mandatorily redeemable preferred stock and
     Series F preferred stock. The AT&T Agreements are amortized on a straight-
     line basis over the related contractual terms, which range from three to
     ten years. Amortization on the AT&T Exclusivity Agreement, Long Distance
     Agreement and the Intercarrier Roamer Services Agreement began once
     wireless services were available to its customers. Amortization of the
     Network Membership License Agreement began on July 17, 1998, the date of
     the finalization of the AT&T Transaction. For the year ended December 31,
     1998 and for the three months ended March 31, 1999, the Company recorded
     amortization expense of $772,497 and $916,278 (unaudited), respectively.

     Inventory
     Inventory consists of the following:

<TABLE>
<CAPTION>



                                                                                   March 31,
                                                       December 31,                  1999
                                                  1997             1998           (unaudited)
                                           ------------       ----------       ---------------

                   <S>                     <C>                   <C>               <C>
                   Handsets                $          -          778,235           7,258,147
                   Accessories                        -                -             442,885
                                           ------------       ----------       ----------------
                    Total inventory        $          -          778,235           7,701,032
                                           ============       ==========       ================
</TABLE>

                                   Continued

                                     F-12
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                 _____________


     Inventory is valued at the lower of cost or market and is recorded net of
     an allowance for obsolescence. No allowance for obsolescence has been
     recorded as of December 31, 1998 and March 31, 1999.

     Deferred Financing Costs
     In connection with entering into a credit facility with a group of
     commercial lenders (see Note 5), the Company incurred certain debt issuance
     costs. The Company has capitalized financing costs of $9,109,677 and
     $9,265,495 (unaudited), as of December 31, 1998 and March 31, 1999,
     respectively. The financing costs are being amortized using the straight
     line method over the term of the credit facility. For the year ended
     December 31, 1998 and for the three months ended March 31, 1999, the
     Company recorded interest expense related to the amortization of the
     deferred financing costs of $524,924 and $250,041 (unaudited),
     respectively.

     Long-Lived Assets
     The Company periodically evaluates the recoverability of the carrying value
     of property and equipment, network under development, wireless network,
     intangible assets, PCS licenses and microwave relocation costs. The Company
     considers historical performance and anticipated future results in its
     evaluation of potential impairment. Accordingly, when indicators of
     impairment are present, the Company evaluates the carrying value of these
     assets in relation to the operating performance of the business and future
     undiscounted cash flows expected to result from the use of these assets.
     Impairment losses are recognized when the sum of the present value of
     expected future cash flows are less than the assets' carrying value. No
     such impairment losses have been recognized to date.

     Income Taxes
     The Company accounts for income taxes in accordance with the liability
     method. Deferred income taxes are recognized for tax consequences in future
     years for differences between the tax bases of assets and liabilities and
     their financial reporting amounts at each year-end, based on enacted laws
     and statutory tax rates applicable to the periods in which the differences
     are expected to affect taxable income. Valuation allowances are
     established, when necessary, to reduce net deferred tax assets to the
     amount expected to be realized. The provision for income taxes consists of
     the current tax provision and the change during the period in deferred tax
     assets and liabilities.

     Start-Up and Advertising Costs
     Start-up costs are expensed as incurred. The Company expenses production
     costs of print, radio and television advertisements and other advertising
     costs as such costs are incurred. Advertising expenses in selling and
     marketing for 1996, 1997, and 1998 were insignificant. Advertising expenses
     in selling and marketing were $2,540,146 (unaudited) for the three months
     ended March 31, 1999.

     Interest Rate Swaps
     The Company uses interest swaps to hedge the effects of fluctuations in
     interest rates from their Senior Credit Facility (see Note 5). These
     transactions meet the requirements for hedge accounting, including
     designation and correlation. The interest rate swaps are managed in
     accordance with the Company's policies and procedures. The Company does not
     enter into these transactions for trading purposes. The resulting gains or

                                   Continued

                                     F-13
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                    ______



   losses, measured by quoted market prices, are accounted for as part of the
   transactions being hedged, except that losses not expected to be recovered
   upon the completion of hedged transactions are expensed.  Gains or losses
   associated with interest rate swaps are computed as the difference between
   the interest expense per the amount hedged using the fixed rate compared to a
   floating rate over the term of the swap agreement.  As of December 31, 1998,
   the Company has entered into six interest rate swap agreements with various
   commercial lenders totaling a notional amount of $225,000,000 to convert the
   Company's variable rate debt of LIBOR plus 3.25% to fixed rate debt.  The
   interest rate swaps had no material impact on the consolidated financial
   statements as of and for the year ended December 31, 1998 and as of and for
   the three months ended March 31, 1999.

   Segment Reporting
   The Company presently operates in a single business segment as a provider of
   wireless mobility services in its licensed regions primarily in the south-
   central and northeastern United States.  The Company operates in various MTAs
   including New Orleans, LA, Memphis, TN, Little Rock, AK, and Boston, MA.

   Recently Issued Accounting Standards
   In 1998, the Financial Accounting Standards Board (FASB) issued Statement of
   Financial Accounting Standards No. 133, "Accounting for Derivative
   Instruments and Hedging Activities" (SFAS 133).  SFAS 133 is effective for
   all fiscal quarters of fiscal years beginning after June 15, 1999.  The
   Company has not determined the effect of adopting this standard.

                                   Continued

                                     F-14
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                    ______



3. Property and Equipment

   Property and equipment consists of the following:

<TABLE>
<CAPTION>                                                                          March 31,
                                                     December 31,                    1999
                                             1997               1998              (unaudited)
                                         --------------    ----------------    ----------------

           <S>                           <C>               <C>                 <C>
           Network under development     $   3,269,793      $  170,885,628      $     85,748,672
           Wireless network                          -                   -           139,788,137
           Computer equipment                  328,875          10,115,063            11,369,207
           Internal use software                     -          11,161,142            15,439,923
           Leasehold improvements                    -           3,204,623             7,575,936
           Furniture, fixtures and office
           equipment                            21,306           2,924,233             5,613,613
                                         --------------    ----------------     ----------------

                                             3,619,974         198,290,689           265,535,488
           Accumulated depreciation            (10,700)           (822,067)           (2,881,701)
                                         --------------    ----------------     ----------------
                                          $  3,609,274      $  197,468,622      $    262,653,787
                                         ==============    ================    =================
</TABLE>

4. Accrued Expenses

   Accrued expenses consists of the following:

<TABLE>
<CAPTION>
                                                                                    March 31,
                                                   December 31,                       1999
                                               1997            1998                 (unaudited)
                                           -------------     ------------       ----------------
       <S>                                 <C>               <C>                <C>
       Property and equipment              $           -     $ 85,634,829       $  26,645,066
       Sales taxes                                     -                -          11,405,831
       Consulting services                             -        4,237,411           3,494,719
       Bonuses and vacation                            -        2,386,317           1,684,330
       Engineering                                     -          676,893           1,378,472
       Selling and marketing                           -          346,552           2,155,363
       Other                                     824,164        1,187,367           2,406,431
       Legal fees                                      -          402,893             949,600
                                           -------------     ------------       ----------------
                                                 824,164       94,872,262          50,119,812
       Less: current portion                           -                -          (3,362,364)
                                           -------------     ------------       ----------------
                                           $     824,164     $ 94,872,262       $  46,757,448
                                           =============     ============       ================
</TABLE>

                                   Continued

                                     F-15
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                    _______




5. Long-term Debt

   Long-term debt consists of the following:

<TABLE>
<CAPTION>
                                                                                  March 31,
                                                  December 31,                      1999
                                           1997                1998             (unaudited)
                                        -------------      --------------    -----------------

    <S>                                 <C>                <C>               <C>
    Senior credit facility              $           -      $  225,000,000    $   225,000,000
    Lucent Series A notes                           -          10,460,400         40,815,926
    Lucent Series B notes                           -                   -         20,093,150
    U.S. Government financing               7,727,322           7,924,666          7,980,387
    Notes payable to stockholders           2,808,500                   -                  -
    Notes payable to affiliates             2,072,573                   -                  -
    (see Note 12)                       -------------      --------------    -----------------
                                           12,608,395         243,385,066        293,889,463
    Less:  current portion                 (4,881,073)                  -                  -
                                        -------------      --------------    -----------------
                                        $   7,727,322      $  243,385,066    $   293,889,463
                                        =============      ==============    =================
</TABLE>

   Senior Credit Facility
   In July 1998, the Company entered into a credit facility (the Senior Credit
   Facility) with a group of commercial lenders, under which the Company may
   borrow up to $525,000,000, in the aggregate, consisting of (i) up to
   $150,000,000 in revolving loans (the Senior Revolving Credit Facility) with a
   maturity date of January 2007, (ii) a $150,000,000 term loan (the Tranche A
   Term Loan) with a maturity date of January 2007, and (iii) a $225,000,000
   term loan (the Tranche B Term Loan) with a maturity date of January 2008.  A
   total of $225,000,000 of indebtedness from the Tranche B Term Loan was
   outstanding as of December 31, 1998 and March 31, 1999 (unaudited).    The
   Senior Credit Facility also provides for an uncommitted $75,000,000 senior
   term loan (the Expansion Facility) with a maturity date of January 2008.

   Beginning in September 2002, principal repayments will be made in 18
   quarterly installments for the Tranche A Term Loan and 22 quarterly
   installments for the Tranche B Term Loan.  Quarterly principal repayments for
   the Tranche A Term Loan are as follows:  first six, $3,750,000; next four,
   $9,375,000; last eight, $11,250,000.  Quarterly principal repayments for the
   Tranche B Term Loan are as follows: first 18, $562,500, last four,
   $53,718,750.  Interest payments on the senior credit facility are made
   quarterly.  The Senior Credit Facility contains a prepayment provision
   whereby certain amounts borrowed must be repaid upon the occurrence of
   certain specified events.

   The commitment to make loans under the Tranche A Term loan will terminate in
   July 2001, or earlier if elected by the Company.  Beginning in April 2005,
   the commitment to make loans under the Senior

                                   Continued

                                     F-16
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                    _______





   Revolving Credit Facility will be permanently reduced on a quarterly basis
   through April 2007 as follows: first four reductions, $12,500,000; last four
   reductions $25,000,000. The unpaid principal on the Senior Revolving Credit
   Facility is due January 2007. In July 2000, if the undrawn portion of the
   Tranche A Term Loan exceeds $50,000,000 the amount of the Tranche A Term Loan
   will be automatically reduced by such excess.

   The interest rate applicable to the Senior Credit Facility is based on, at
   the Company's option, (i) LIBOR (Eurodollar Loans) plus the Applicable
   Margin, as defined, or (ii) the higher of the administrative agent's prime
   rate or the Federal Funds Effective Rate (ABR Loans), plus the Applicable
   Margin, as defined.  The Applicable Margin for Eurodollar Loans will range
   from 125 to 325 basis points based upon certain events by the Company, as
   specified.  The Applicable Margin for ABR Loans will range from 25 to 225
   basis points based upon certain events by the Company, as specified.  At
   December 31, 1998, the interest rate applicable to the Tranche B Term Loan
   was 8.75% and interest expense for the year ended December 31, 1998 was
   $9,210,187.   For the three months ended March 31, 1999, interest expense on
   the Tranche B Term Loan was $3,732,196 (unaudited).

   The loans from the Senior Credit Facility are subject to an annual commitment
   fee which ranges from 0.50% to 1.25% of the available portion of the Tranche
   A Term Loan and the Senior Revolving Credit Facility.  The Company has
   expensed $3,305,905 for the year ended December 31, 1998 related to these
   bank commitment fees.  The Senior Credit Facility requires the Company to
   purchase interest rate hedging contracts covering amounts equal to at least
   50% of the total amount of the outstanding indebtedness of the Company.  As
   of December 31, 1998 and March 31, 1999, the Company hedged 100% of its
   outstanding indebtedness of $225,000,000 to take advantage of favorable
   interest rate swaps.

   Initially, borrowings under the Senior Credit Facility are subject to a
   maximum Senior Debt to Total Capital ratio, as defined, of 50%.  This ratio
   is increased to 55% if certain specified operating benchmarks are achieved.
   In addition, the Company must comply with certain financial and operating
   covenants.  The financial covenants include various debt to equity, debt to
   EBITDA, interest coverage, and fixed charge coverage ratios, as defined in
   the Senior Credit Facility.  The operating covenants include minimum
   subscribers, minimum aggregate service revenue, minimum coverage of
   population and maximum capital expenditure thresholds.  As of December 31,
   1998 and March 31, 1999 (unaudited), the Company was in compliance with these
   covenants.

   The Company may utilize the Expansion Facility as long as the Company is not
   in default of the Senior Credit Facility and is in compliance with each of
   the financial covenants.  However, none of the lenders are required to
   participate in the Expansion Facility.

   The Senior Credit Facility is collateralized by substantially all of the
   assets of the Company.  In addition, the Senior Credit Facility has been
   guaranteed by the Company's subsidiaries and shall be guaranteed by
   subsequently acquired or organized domestic subsidiaries of the Company.

                                   Continued

                                     F-17
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                    _______



   Lucent Note Agreement
   In May 1998, the Company entered into a Note Purchase Agreement (the Lucent
   Note Agreement) with Lucent Technologies, Inc. (Lucent) which provides for
   the issuance of increasing rate 8.5% Series A (the Series A Notes) and 10.0%
   Series B (the Series B Notes) junior subordinated notes (the Subordinated
   Notes) with an aggregate face value of $80,000,000.  The aggregate face value
   of the Subordinated Notes shall decrease dollar for dollar, upon the
   occurrence of certain events as defined in the Lucent Note Agreement. The
   proceeds of the Subordinated Notes are to be used to develop the Company's
   network in certain designated areas. As of December 31, 1998, the Company had
   $10,460,400 outstanding under the Series A Notes. As of March 31, 1999, the
   Company had $40,815,926 (unaudited) and $20,093,150 (unaudited) outstanding
   under the Series A Notes and Series B Notes, respectively.  Subsequent to
   March 31, 1999, the Company repaid the entire amount outstanding under the
   Series B Notes with the proceeds received from the Notes (see Note 2).

   The Series A and Series B Notes will not amortize and will have a maturity
   date six months after the final maturity of the Company's high yield debt
   offering, but in no event later than May 1, 2012. The Series A Notes will
   have a mandatory redemption at par plus accrued interest from the proceeds of
   a subsequent equity offering to the extent the net proceeds exceed an amount
   identified in the Lucent Note Agreement. The Series B Notes will have a
   mandatory redemption at par, plus accrued interest from the proceeds of the
   Company's initial high yield debt offering to the extent the net proceeds of
   that offering exceed an amount identified in the Lucent Note Agreement. If
   the Series A Notes and Series B Notes are not redeemed in full by January
   2001 and January 2000, respectively, the interest rate on each note will
   increase by 1.5% per annum on January 1. However, the interest rate
   applicable to the Subordinated Notes shall not exceed the lesser of (i) 12.5%
   per annum or (ii) if the Company completes a Qualifying High Yield Offering
   before May 2001 (in the case of the Series A Notes) or May 1, 2000 (in the
   case of the Series B Notes), the initial yield on such offering plus 0.5% per
   annum. Interest payable on the Series A Notes and the Series B Notes on or
   prior to May 11, 2004 shall be payable in additional Series A and Series B
   Notes. Thereafter, interest shall be paid in arrears in cash on each six
   month and yearly anniversary of the Series A and Series B closing date or, if
   cash interest payments are prohibited under the Senior Credit Facility and or
   the Qualifying High Yield Debt Offering, in additional shares of Series A and
   Series B Notes. As of December 31, 1998, interest accrued under the Series A
   Notes of $460,400 has been included in long-term debt.  As of March 31, 1999,
   interest accrued under the Series A Notes and Series B Notes of $815,926
   (unaudited) and $93,150 (unaudited), respectively, have been included in
   long-term debt.

   The Company may redeem the Subordinated Notes held by Lucent or any of its
   affiliates at any time.  The Series A Notes that are not held by Lucent or
   any of its affiliates may be redeemed by the Company prior to May 2002 and
   after May 2007. The Series B Notes that are not held by Lucent or any of its
   affiliates may be redeemed by the Company prior to May 2000 and after May
   2005. Any redemption after May 2007, in the case of the Series A Notes, and
   May 2005, in the case of the Series B Notes, shall be subject to an interest
   rate premium, as specified.  All of the outstanding notes under the Lucent
   Note Agreement as of December 31, 1998 and March 31, 1999 are held by Lucent.
   The Company must comply with certain operating covenants.  As of December 31,
   1998 and March 31, 1999 (unaudited), the Company was in compliance with these
   operating covenants.


                                   Continued

                                     F-18
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                    _______




   In addition, Lucent has agreed to make available up to an additional
   $80,000,000 of junior subordinated vendor financing in amounts up to 30% of
   the value of the equipment, software and services provided by Lucent in
   connection with any additional markets the Company acquires, subject to
   certain conditions as specified (the Vendor Expansion Facility).   The
   expiration date for any notes issued pursuant to the Vendor Expansion
   Facility is the date which is six months after the scheduled maturity of the
   Notes, subject to mandatory prepayment if certain future events occur.

   U.S. Government financing
   In 1996, the Company placed $7,500,000 on deposit with the FCC in order to
   bid on F Block broadband PCS licenses.  In April 1997, the Company's
   application for the PCS licenses was approved.  The Company made a down
   payment of $5,942,835 using the funds from the FCC deposit and issued
   promissory notes to the FCC for $23,771,342.  The balance of the Company's
   deposit of $1,557,165 was refunded in April 1997. In April 1997, certain of
   the PCS licenses with a cost of $15,678,814 and related US. Government
   financing in the amount of $12,034,212, net of a discount of $2,544,192, was
   transferred to four newly-formed entities created by the Company's existing
   stockholder group (See Notes 1 and 12) in August 1997.  The terms of the
   notes include: an interest rate of 6.25%, quarterly interest payments which
   commenced in July 1998 and continue for the one year thereafter, then
   quarterly principal and interest payments for the remaining 9 years.  The
   promissory notes are collateralized by the underlying PCS licenses.

   The notes are net of a discount of  $1,465,616, $1,268,272, and $1,212,552
   (unaudited) as of December 31, 1997 and 1998 and March 31, 1999,
   respectively.  The notes were discounted using management's best estimate of
   the prevailing market interest rate at the time of issuance of 10.25%.

   Notes payable to stockholders
   In July 1996, the Company issued $498,750 of subordinated promissory notes to
   two stockholders.  The notes bore interest at a rate of 10%, compounded semi-
   annually, and were due in full in July 2002.  In April 1997, these notes were
   converted into 50 shares of Series A preferred stock (See Note 7).

   In December 1997, the Company issued various promissory notes totaling
   $2,808,500 to stockholders.  The notes bore interest at a rate of 6% and were
   converted into mandatorily redeemable preferred stock of the Company in July
   1998. The notes were discounted using management's best estimate of the
   prevailing market interest rate at the time of issuance of 10.25%.  The
   effect on the Company's 1997 financial statements of discounting these notes
   was not material.

   From January 1, 1998 to June 30, 1998, the Company borrowed approximately
   $22,491,500 in the form of promissory notes from existing and prospective
   stockholders to satisfy the working capital needs of the Company.  The
   promissory notes bore interest at the rate of 6.25% per annum compounded
   quarterly and were payable in one lump sum on August 31, 1998.  In July 1998,
   these notes were converted to mandatorily redeemable preferred stock of the
   Company (see Note 9) in connection with the AT&T Transaction.

                                   Continued

                                     F-19
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                  ___________


   As of December 31, 1998, minimum required annual principal repayment
   (undiscounted) under all of the Company's outstanding debt obligations were
   as follows:

                         1999             $            -
                         2000                    450,719
                         2001                    944,470
                         2002                  1,004,897
                         2003                  1,631,691
                         Thereafter          291,070,238
                                          --------------
                                          $  295,102,015
                                          ==============

6. AT&T Transaction

   In January 1998, the Company entered into a Securities Purchase Agreement
   (the Securities Purchase Agreement) with AT&T Wireless PCS, Inc. and TWR
   Cellular, Inc. (both subsidiaries of AT&T Corporation and collectively
   referred to as AT&T PCS), the stockholders of Holding and various venture
   capital investment firms (the Cash Equity Investors).  The Securities
   Purchase Agreement provides the Company will be a provider of wireless
   mobility services in its licensed regions utilizing the AT&T brand name.

   Upon the receipt of FCC approval in July 1998, the Company finalized the
   transaction contemplated in the Securities Purchase Agreement (the AT&T
   Transaction). In connection therewith, the Company issued mandatorily
   redeemable preferred stock, preferred stock and common stock and paid AT&T
   $21,000,000 in exchange for (i) 20 MHz PCS licenses with an independently
   appraised value of $94,850,000; (ii) certain operating agreements with AT&T
   for exclusivity, network membership, long distance and roaming with an
   independently appraised value of $27,050,000; (iii) 100% of the outstanding
   ownership interests in Holding, which includes 10 MHz PCS licenses; and (iv)
   a cash commitment from the Cash Equity Investors of $128,000,000 to be paid
   over a three year term (see Note 9) plus additional $5,000,000 upon the
   closing of the Digital PCS transaction (see Note 15).

   The general terms of the operating agreements with AT&T are summarized below:

          .    AT&T Exclusivity: The Company will be AT&T's exclusive
               facilities-based provider of mobile wireless telecommunications
               services within the Company's BTAs for an initial ten year
               period. This agreement will automatically renew for a one-year
               term and then operate on a year-to-year basis unless one party
               terminates at least ninety (90) days prior to the end of any one-
               year term.

               The Company has determined the fair value of this agreement to be
               $11,870,000 based upon an independent appraisal and is amortizing
               this value over the initial 10 year term.


                                   Continued

                                     F-20
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                  __________


          .    Network Membership License Agreement: The Network Membership
               License Agreement (the License Agreement) defines that AT&T will
               make available to the Company use of the AT&T logo and the right
               to refer to itself as a "Member of the AT&T Wireless Network" to
               market its PCS services. Through the use of these rights, the
               Company expects to participate in and benefit from AT&T
               promotional and marketing efforts. The License Agreement has an
               initial five-year term with a five-year renewal term if both the
               Company and AT&T elect to renew at least ninety 90 days prior to
               the expiration of the initial term.

               The Company has determined the fair value of this agreement to be
               $8,480,000 based upon an independent appraisal and is amortizing
               this value over the initial five year term.

          .    Intercarrier Roamer Services Agreement: AT&T and the Company have
               entered into a twenty-year reciprocal roaming agreement provided
               that their customers who own tri-mode phones will roam on the
               other's mobile wireless systems. Thereafter, this agreement shall
               renew automatically on a year-to-year basis unless either the
               Company or AT&T terminates this agreement by written notice at
               least 90 days prior to the conclusion of the original or any
               subsequent term. After ten years, this agreement may be
               terminated by the Company or AT&T at any time upon 90 days prior
               written notice. AT&T also agrees to permit the Company to have
               outbound roaming on its network for twenty years at commercially
               reasonable rates to the extent commercially and technologically
               feasible. The outbound roaming agreement shall continue with
               automatic ten-year renewals subject to a one-year cancellation
               notice.

          .    The Company has determined the value of this roaming agreement to
               be $3,500,000 based upon an independent appraisal and is
               amortizing this value over the initial 10 year term.

          .    Long Distance Agreement: The long distance agreement provides
               that AT&T will be the exclusive provider for long distance
               services to the Company's customers within the Company's licensed
               regions for an initial three year period. The long distance
               agreement requires that the Company meet a minimum traffic volume
               commitment during the term of the agreement. If the Company fails
               to meet such volume commitments, the Company must pay to AT&T the
               difference between the expected fee based on the volume of the
               commitment and the fees based on actual volume.

               The Company had determined the fair value of this agreement to be
               $3,200,000 based upon an independent appraisal and is amortizing
               this value over the initial three year term.

                                   Continued

                                     F-21
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                   _________


7. Mandatorily Redeemable Preferred Stock and Stockholders' Equity (Deficit)

   Holding
   Holding's authorized capital stock consisted of 6,000 shares of no par value
   mandatorily redeemable Series A preferred stock, 125,000 shares of no par
   value Class A common stock, 175,000 shares of no par value Class B common
   stock and 175,000 shares of no par value Class C common stock. This capital
   stock was in existence during 1996, 1997, and through July 1998, the closing
   of the AT&T Transaction, at which time Holding became a wholly-owned
   subsidiary of the Company. Subsequent to the AT&T Transaction, the authorized
   and outstanding shares of Holding were cancelled and replaced with 1,000
   authorized shares of common stock of which 100 shares were issued to the
   Company.

   TeleCorp
   Following the closing of the AT&T Transaction, the Company restated its
   Certificate of Incorporation.  The Restated Certificate of Incorporation
   provides the Company with the authority to issue 1,914,010 shares of stock,
   consisting of the following:

<TABLE>
<CAPTION>
                 Preferred                                Par        Shares                                Par        Shares
                   Stock                                 Value     authorized     Common Stock            Value     authorized
            -----------------                       ----------    -----------   --------------         --------   ------------
            <S>                                     <C>           <C>           <C>                    <C>        <C>
            Mandatorily redeemable Series A           $   0.01         70,000       Senior             $   0.01         70,000
            Mandatorily redeemable Series B           $   0.01        140,000       Class A            $   0.01        700,000
            Mandatorily redeemable Series C           $   0.01        140,000       Class B            $   0.01        700,000
            Mandatorily redeemable Series D           $   0.01         35,000       Class C tracked    $   0.01          1,000
            Mandatorily redeemable Series E           $   0.01         20,000       Class D tracked    $   0.01          3,000
              Series F                                $   0.01         35,000       Voting Preference  $   0.01             10
                                                                  -----------                                     ------------
               Total                                                  440,000          Total                         1,474,010
                                                                  ===========                                     ============
</TABLE>

                                   Continued

                                     F-22
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


The following schedules represents the transactions that took place with respect
to Holding's Mandatorily redeemable preferred stock and common stock for the
period from July 29, 1996 (date of inception) to December 31, 1998:

<TABLE>
<CAPTION>
                                                                                   Series A
                                                                               preferred stock
                                                                       -----------------------------
                                                                          Shares            Amount
                                                                       ---------    ----------------
               <S>                                                     <C>          <C>
               Mandatorily redeemable preferred stock
               --------------------------------------
               Initial capitalization for cash                               750      $    7,500,000
               Accretion of preferred stock dividends                          -             288,959
                                                                       ---------    ----------------
               Balance, December 31, 1996                                    750           7,788,959
               Issuance of preferred stock for cash                          150           1,500,000
               Accretion of preferred stock dividends                          -             725,557
               Conversion of promissory note to preferred
               stock                                                          50             498,750
               Noncash redemption of equity interests (see
               Note 12)                                                     (583)         (6,368,926)
                                                                       ---------    ----------------
               Balance, December 31, 1997                                    367           4,144,340
               Accretion of preferred stock dividends                          -             224,484
               Recapitalization of Holding                                  (367)         (4,368,824)
                                                                       ---------    ----------------
               Balance, December 31, 1998                                      -      $            -
                                                                       =========    ================
</TABLE>


<TABLE>
<CAPTION>
                                           Class A             Class B             Class C
                                         common stock        common stock        common stock        Common stock
                                   --------------------------------------------------------------------------------
                                     Shares      Amount    Shares    Amount    Shares    Amount    Shares    Amount       Total
                                   -----------  --------  --------  --------  --------  --------  -------   --------    ---------
  <S>                              <C>          <C>       <C>       <C>       <C>       <C>       <C>       <C>         <C>
        Common stock
  ------------------------
  Initial capitalization for cash      8,750    $ 2,000          -  $      -   25,520   $      -        -   $     -     $   2,000
  Issuance of common stock             3,750          -      5,104         -        -          -        -         -             -
                                   -----------  --------  --------  --------  --------  --------  -------   --------    ---------
  Balance, December 31, 1996          12,500      2,000      5,104         -   25,520          -        -         -         2,000
  Issuance of common stock for
   cash                                    -          -          -         -    6,875          -        -         -             -
  Noncash redemption of equity
   interests (See Note 12)            (7,666)    (1,144)    (3,130)        -  (19,868)         -        -         -        (1,144)
                                   -----------  --------  --------  --------  --------  --------  -------   --------    ---------
  Balance, December 31, 1997           4,834        856      1,974         -   12,527          -        -                     856
  Recapitalization of Holding         (4,834)      (856)    (1,974)        -  (12,527)         -      100         -          (856)
  Elimination of 100% of equity
   interests in Holding                    -          -          -         -        -          -     (100)        -             -
                                   -----------  --------  --------  --------  --------  --------  -------   --------    ---------
   Balance, December 31, 1998              -    $     -          -  $      -        -   $      -        -   $     -     $       -
                                   -----------  --------  --------  --------  --------  --------  -------   --------    ---------
</TABLE>

                                   Continued

                                     F-23
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                  ___________


   The following schedule represents the transactions that took place with
   respect to TeleCorp's mandatorily redeemable preferred stock, Series F
   preferred stock and common stock for the period July 1998 to March 31, 1999:

<TABLE>
<CAPTION>
                                                                Series A                      Series C
                                                            preferred stock               preferred stock
                                                       --------------------------    --------------------------
                                                         Shares         Amount         Shares         Amount
                                                       ----------    ------------    ----------    ------------
<S>                                                    <C>           <C>             <C>           <C>
Mandatorily redeemable preferred stock
- --------------------------------------
Issuance of preferred stock to AT&T PCS for
 licenses and AT&T Agreements                              66,723    $ 66,723,000             -    $          -
Issuance of preferred stock to Cash Equity
 Investors, net of issuance costs of $1,027,695                 -               -       128,000     126,847,780
Accretion of preferred stock dividends                          -       3,039,603             -       3,818,827
Noncash issuance of restricted stock                            -               -             -               -
Repurchase of restricted stock for cash                         -               -             -               -
Noncash issuance of preferred stock for
 equity of Holding                                              -               -         7,348       4,334,276
                                                       ----------    ------------    ----------    ------------
Balance, December 31, 1998                                 66,723      69,762,603       135,348    $135,000,883
Accretion of preferred stock dividends (unaudited)              -       1,744,065             -       2,137,884
Noncash issuance of restricted stock (unaudited)                -               -             -               -
Repurchase of restricted stock for cash (unaudited)             -               -             -               -
                                                       ----------    ------------    ----------    ------------
Balance, March 31, 1999 (unaudited)                        66,723    $ 71,506,668       135,348    $137,138,767
                                                       ==========    ============    ==========    ============

<CAPTION>
                                                                Series D                      Series E
                                                            preferred stock               preferred stock
                                                       --------------------------    --------------------------
                                                         Shares         Amount         Shares         Amount          Total
                                                       ----------    ------------    ----------    ------------   -------------
<S>                                                    <C>           <C>             <C>           <C>            <C>
Mandatorily redeemable preferred stock
- --------------------------------------
Issuance of preferred stock to AT&T PCS for
 licenses and AT&T Agreements                              34,267    $ 34,143,639            -     $          -   $ 100,866,639
Issuance of preferred stock to Cash Equity
 Investors, net of issuance costs of $1,027,695                 -               -            -                -     126,847,780
Accretion of preferred stock dividends                          -         945,780            -          541,038       8,345,248
Noncash issuance of restricted stock                            -               -        5,505            5,505           5,505
Repurchase of restricted stock for cash                         -               -         (784)            (792)           (792)
Noncash issuance of preferred stock for
 equity of Holding                                              -               -       14,156           10,215       4,344,491
                                                       ----------    ------------    ----------    ------------   -------------
Balance, December 31, 1998                                 34,267    $ 35,089,419       18,877     $    555,966   $ 240,408,871
Accretion of preferred stock dividends (unaudited)              -         529,971            -          303,031       4,714,951
Noncash issuance of restricted stock (unaudited)                -               -          207            8,236           8,236
Repurchase of restricted stock for cash (unaudited)             -               -         (577)            (576)           (576)
                                                       ----------    ------------    ----------    ------------   -------------
Balance, March 31, 1999 (unaudited)                        34,267    $ 35,619,390       18,507     $    866,657   $ 245,131,482
                                                       ==========    ============    ==========    ============   =============
</TABLE>

<TABLE>
<CAPTION>
                                                                Series F                      Class A
                                                            preferred stock                 Common stock
                                                       --------------------------    --------------------------
                                                         Shares         Amount         Shares         Amount
                                                       ----------    ------------    ----------    ------------
<S>                                                    <C>           <C>             <C>           <C>
Series F preferred and common stock
- -----------------------------------
Issuance of common stock to Cash Equity
  Investors for cash                                            -    $          -       121,490    $      1,214
Issuance of preferred stock to AT&T PCS for
  licenses and AT&T Agreements                             33,361             333             -               -
Exchange of 100% of equity interests in Predecessor
  Company for equity in the Company                             -               -        24,541             245
Noncash issuance of restricted stock                            -               -        10,018             100
Repurchase of restricted stock for cash                         -               -        (1,787)              -
                                                       ----------    ------------    ----------    ------------
Balance, December 31, 1998                                 33,361    $        333       154,262    $      1,559
Noncash issuance of restricted stock (unaudited)                -               -           471               -
Repurchase of restricted stock for cash (unaudited)             -               -        (1,317)              -
                                                       ----------    ------------    ----------    ------------
Balance, March 31, 1999 (unaudited)                        33,361    $        333       153,416    $      1,559
                                                       ==========    ============    ==========    ============
<CAPTION>
                                                            Class C tracked               Class D tracked
                                                              common stock                  common stock
                                                       --------------------------    --------------------------
                                                         Shares         Amount         Shares         Amount
                                                       ----------    ------------    ----------    ------------
<S>                                                    <C>           <C>             <C>           <C>
Series F preferred and common stock
- -----------------------------------
Issuance of common stock to Cash Equity
  Investors for cash                                          358    $          4         2,678    $         27
Issuance of preferred stock to AT&T PCS for
  licenses and AT&T Agreements                                  -               -             -               -
Exchange of 100% of equity interests in Predecessor
  Company for equity in the Company                           561               6            77               1
Noncash issuance of restricted stock                            -               -             -               -
Repurchase of restricted stock for cash                         -               -             -               -
                                                       ----------    ------------    ----------    ------------
Balance, December 31, 1998                                    919    $         10         2,755    $         28
Noncash issuance of restricted stock (unaudited)                -               -             -               -
Repurchase of restricted stock for cash (unaudited)             -               -             -               -
                                                       ----------    ------------    ----------    ------------
Balance, March 31, 1999 (unaudited)                           919    $         10         2,755    $         28
                                                       ==========    ============    ==========    ============

<CAPTION>
                                                           Voting Preference
                                                              common stock
                                                       --------------------------
                                                         Shares         Amount          Total
                                                       ----------    ------------   -------------
<S>                                                    <C>           <C>            <C>
Series F preferred and common stock
- -----------------------------------
Issuance of common stock to Cash Equity
  Investors for cash                                            -    $          -   $       1,245
Issuance of preferred stock to AT&T PCS for
  licenses and AT&T Agreements                                  -               -             333
Exchange of 100% of equity interests in Predecessor
  Company for equity in the Company                            10                             252
Noncash issuance of restricted stock                            -               -             100
Repurchase of restricted stock for cash                         -               -
                                                       ----------    ------------   -------------
Balance, December 31, 1998                                     10    $          -   $       1,930
Noncash issuance of restricted stock (unaudited)                -               -               -
Repurchase of restricted stock for cash (unaudited)             -               -               -
                                                       ----------    ------------   -------------
Balance, March 31, 1999 (unaudited)                            10    $          -   $       1,930
                                                       ==========    ============   =============
</TABLE>


There are no issued or outstanding shares of Series B preferred stock, Senior
common stock or Class B common stock as of March 31, 1999 (unaudited).

                                  Continued

                                      F-24
<PAGE>

         TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                  ----------

The conversion features and conversion prices of the Company's issued stock are
summarized below:

<TABLE>
<CAPTION>
   Convertible Security         Convertible Into                   Conversion Price
- -------------------------   ------------------------   -----------------------------------------
<S>                         <C>                        <C>                        <C>
Series A preferred stock    After July 2006, at        The Series A conversion rate is equal
                            the holders' option,       to the liquidation preference of the
                            into Class A common        Series A preferred stock on the
                            stock                      conversion date divided by the market
                                                       price of the Class A common stock on
                                                       the conversion date.

Series C preferred stock    At the option of the       The liquidation preference of the
                            Company at the IPO         Series C preferred stock divided by
                            date into either           the IPO price.
                            Class A or B common
                            stock

Series D and Series F       If Series C preferred      The liquidation preference divided by
preferred stock             stock is converted         the IPO price.
                            then automatically at
                            the IPO date into
                            Senior common stock

Series E preferred stock    At the option of the       The liquidation preference of the
                            Company at the IPO         Series E preferred stock divided by
                            date into either           the IPO price.
                            Class A or Class B
                            common stock

Series F preferred stock    At the holders'            One share of Series F preferred stock
and Senior common stock     option, into Class A,      or Senior common stock for one share
                            Class B or Class D         of either Class A, Class B or Class D
                            common stock,              common stock.
                            depending upon the
                            occurrence of certain
                            defined events

Class A common stock        At the holders'            One share of Class B common stock for
                            option into Class B        one share of Class A common stock.
                            common stock

Class C tracked common      Subject to FCC             One share of Class A or Class B common
stock                       constraints and Board      stock for one share of Class C tracked
                            approval, at the           common stock.
                            holders' option and
                            by affirmative vote
                            of at least 66 2/3%
                            of Class A common
                            stock  into Class A
                            or Class B common stock

Class D tracked common      Subject to FCC             One share of Class A or Class B common
stock                       constraints and Board      stock for one share of Class D tracked
                            approval, at the           common stock.
                            holders' option and
                            by affirmative vote
                            of at least 66 2/3%
                            of Class A common
                            stock into Class A or
                            Class B common stock
</TABLE>

                                   Continued

                                      F-25
<PAGE>

         TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                  ----------

The conversion features and conversion prices of the Company's issued stock are
summarized below:

     Liquidation rights
     In the event of any liquidation, dissolution or winding up of the Company,
     as defined, the stockholders of the Company are entitled to liquidation
     preferences as follows:

<TABLE>
<CAPTION>
          Order of Distribution      Stock Classification                Distribution Preference
          ---------------------   ---------------------------    ----------------------------------------
          <S>                     <C>                            <C>
          First                   Series A and Series B          $1,000 per share plus accrued and
                                  preferred stock                unpaid dividends.

          Second                  Series C and Series D          Series C: actual paid-in capital per
                                  preferred stock                share plus accrued and unpaid
                                                                 dividends plus interest of 6% per
                                                                 annum on the actual paid-in capital,
                                                                 compounded quarterly, less amount of
                                                                 dividends declared and paid.

                                                                 Series D:  $1,000 per share plus
                                                                 accrued and unpaid dividends plus an
                                                                 amount equal to interest on $1,000
                                                                 per share at a rate of 6% per annum,
                                                                 compounded quarterly, less amount of
                                                                 dividends declared and paid.

          Third                   Series E preferred stock       Accrued and unpaid dividends, plus an
                                                                 amount equal to interest on $1,000
                                                                 per share at 6% per annum, compounded
                                                                 quarterly, less dividends declared
                                                                 and paid.

          Fourth                  Series F preferred stock       Series F preferred:  $0.01 per share
                                  and Senior common stock        plus accrued and unpaid dividends.
                                                                 Senior common stock:  The sum of the
                                                                 liquidation preference of each share
                                                                 of Series D and Series F preferred
                                                                 stock converted in Senior common
                                                                 stock divided by the aggregate number
                                                                 of shares of Senior common stock
                                                                 issued upon conversion of shares of
                                                                 Series D and Series F preferred stock
</TABLE>

     Dividends and voting rights
     The holders of the Series A and Series B preferred stock are entitled to
     cumulative quarterly cash dividends at an annual rate of 10% of the
     liquidation preference of the then outstanding shares. The holders of the
     remaining shares of preferred and common stock are entitled to dividends if
     and when declared.

     The Class A common stock has 4,990,000 voting rights and the Voting
     Preference common stock has 5,010,000 voting rights. For so long as AT&T
     holds at least two-thirds of the shares of Series A preferred stock, they
     shall be entitled, but not obliged, to nominate two of the Company's
     directors. The remaining shares of preferred and common stock shall have no
     voting rights, except as provided by law or in certain limited
     circumstances.

     Call and Redemption features

                                   Continued

                                      F-26
<PAGE>

          TELECORP PCS, INC. AND SUSIDIARIES AND PREDECESSOR COMPANY

                 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                _______________



     The preferred stock is callable at the option of the Company at a price
     equal to the liquidation preference on the redemption date. The Series A
     preferred stock is callable thirty days after the 10th anniversary of the
     issuance of such shares. The Series B preferred stock is callable at any
     time. The Series C and Series D preferred stock are callable at any time,
     provided that the Series C and Series D Preferred Stock are called
     concurrently.

     The Series A, Series B, Series C, Series D and Series E preferred stock are
     redeemable thirty days after the 20th anniversary of the issuance of such
     shares at the option of the holder at a price equal to the liquidation
     preference on the redemption date. The Series F preferred stock is not
     redeemable. Pursuant to a Management Agreement, the Company may redeem
     certain shares of Class A common stock and Series E preferred stock held by
     the Company's Chief Executive Officer and Executive Vice President (the TMC
     officers). For the period from the finalization of the AT&T Transaction to
     December 31, 1998, the Company accreted $8,345,248 of dividends in
     connection with this redemption feature.

     Tracked common stock
     The Class C and Class D common stock have been designated as Tracked common
     stock. The holders of the Tracked common stock are entitled to a dividend,
     when available, equal to the excess of the fair value of the net assets of
     Holding over the aggregate par value of the outstanding shares of the
     Tracked common stock. After all other preferential liquidating
     distributions have been made, the holders of the Tracked common stock will
     be entitled to a liquidation preference equal to the excess of the fair
     value of the net assets of Holding.

     Participating stock
     The Series F preferred stock, the Senior common stock and the Class A and B
     common stock are participating stock, and the Board of Directors may not
     declare dividends on or redeem, purchase or otherwise acquire for
     consideration any shares of the Participating Stock, unless the Board of
     Directors makes such declaration or payment on the same terms with respect
     to all shares of participating stock, ratably in accordance with each class
     and series of participating stock then outstanding.

8.   Restricted Stock Plan

     In July 1998, the Company adopted a Restricted Stock Plan (the Plan) to
     attract and retain key employees and to reward outstanding performance. Key
     employees selected by management may elect to become participants in the
     Plan by entering into an agreement which provides for issuance of fixed and
     variable units consisting of Series E mandatorily redeemable preferred
     stock and Class A common stock. The fixed units typically vest over a five
     or six year period. The variable units vest based upon certain events
     taking place, such as buildout milestones, Pop coverage and other events.
     Unvested shares are forfeited upon termination of employment. The shares
     issued under the Plan shall consist of units transferred to participants
     without payment as additional compensation for their services to the
     Company. The total number of units that may be awarded to key employees
     shall not exceed 5,505 units or a defined number of shares of Series E
     preferred stock and Class A common stock, respectively, as determined upon
     award. Any units not granted on or prior to July 17, 2003 shall be awarded
     to two officers of the Company. Each participant has voting, dividend and

                                   Continued

                                     F-27
<PAGE>

          TELECORP PCS, INC. AND SUSIDIARIES AND PREDECESSOR COMPANY

                 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                _______________



     distribution rights with respect to all shares of both vested and unvested
     common stock. Prior to the Class A shares becoming publicly traded, the
     Company retains the right of first offer to buy the employees' vested
     shares at the offer price. After the Class A shares become publicly traded,
     the right of first offer will no longer exist for the Series E preferred
     shares. In addition the shares contain rights of inclusion and first
     negotiation. The Company may repurchase unvested shares, and under certain
     circumstances, vested shares of participants whose employment with the
     Company terminates. The repurchase price is equal to $0.01 per share. Some
     of the awards granted under the Plan are variable awards. When it is
     probable the future events will occur, the Company determines the fair
     value of the variable awards of the Series E preferred stock and Class A
     common stock, subject to a final measurement date upon the occurrence of
     defined events. Outstanding fixed awards and variable awards as of December
     31, 1998 and March 31, 1999 (unaudited) for each class of stock are as
     follows:

<TABLE>
<CAPTION>
                                                                                March 31,
                                                             December 31,         1999
                                                                 1998         (unaudited)
                                                             ------------------------------
    <S>                                                      <C>              <C>
    Series E preferred stock:
      Fixed awards                                                 3,664             3,411
      Variable awards                                              1,057               939
                                                             -----------       -----------
        Total Series E awards                                      4,721             4,350
                                                             ===========       ===========


    Class A common stock:
      Fixed awards                                                 3,728              3,493
      Variable awards                                              4,503              3,892
                                                             -----------       ---------------
        Total Class A awards                                       8,231              7,385
                                                             ===========       ===============

</TABLE>

     Compensation expense, related to the issuance of restricted stock to
     employees based on the estimated fair value of the preferred and common
     stock, was immaterial for the year ended December 31, 1998 and for the
     three months ended March 31, 1999.

9.   Preferred and Common Stock Subscriptions Receivable

     In connection with the AT&T Transaction described in Note 6, the Company
     received a cash commitment of $128,000,000 from the Cash Equity Investors
     in exchange for Series C preferred stock and various classes of common
     stock. The Securities Purchase Agreement requires the Cash Equity Investors
     to fund their unconditional and irrevocable obligations in installments in
     accordance with the following schedule:


                         Due Date                               Amount
          ---------------------------------------           -------------

          Initial closing (July 17, 1998)                   $  39,375,005
          December 31, 1998                                    16,125,005
          Second anniversary of initial closing                36,250,005

                                   Continued

                                     F-28
<PAGE>

          TELECORP PCS, INC. AND SUSIDIARIES AND PREDECESSOR COMPANY

                 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                _______________



          Third anniversary of initial closing                 36,249,985
                                                              -----------
                                                           $  128,000,000
                                                              ===========

     The initial contributions were provided in the form of short-term interest
     bearing promissory notes (see Note 5). These notes were converted to
     mandatorily redeemable preferred and common stock of the Company as partial
     satisfaction of the $128,000,000 of committed contributions in connection
     with the closing of the AT&T Transaction. Through December 31, 1998, the
     Company received $51,999,725 of the above committed equity and received
     $3,500,285 in January 1999. The Company has recorded a preferred stock
     subscription receivable of $75,914,054 as of December 31, 1998 as a
     reduction to the mandatorily redeemable preferred stock and a common stock
     subscription receivable of $86,221 as of December 31, 1998 as a reduction
     to stockholders equity (deficit) for the unpaid commitment.

10.  Income Taxes

     The tax effect of temporary differences which gives rise to significant
     portions of the deferred tax assets as of December 31, 1997 and 1998,
     respectively, are as follows:


                                              December 31,
                                   -----------------------------------
                                       1997                1998
                                   ---------------    ----------------

     Capitalized start-up costs      $   1,321,340      $   17,599,251
     Net operating losses                  145,710           3,634,809
     Depreciation and amortization               -             288,985
     Deferred rent                               -              74,504
     Capitalized interest                        -            (917,107)
     Other                                  (4,220)            174,952
                                    --------------     ---------------
                                         1,462,830          20,855,394
     Less valuation allowance           (1,462,830)        (20,855,394)
                                    --------------     ---------------
                                    $            -      $            -
                                    ==============     ===============

     For federal income tax purposes, start-up costs will be amortized over five
     years once active business operations commence. There may be a limitation
     on the annual utilization of net operating losses and capitalized start-up
     costs as a result of certain ownership changes that have occurred since the
     Company's inception. The net operating losses start expiring in 2017. A
     valuation allowance is recognized if, based on the weight of available
     evidence, it is more likely than not that some portion or all of the
     deferred tax asset will not be realized. Based on the Company's financial
     results, management has concluded that a full valuation allowance for all
     of the Company's deferred tax assets is appropriate.

11.  Commitments

     In May 1998, the Company entered into a vendor procurement contract (the
     Vendor Procurement Contract) with Lucent, pursuant to which the Company
     will purchase up to $285,000,000 of radio, switching and

                                   Continued

                                     F-29
<PAGE>

          TELECORP PCS, INC. AND SUSIDIARIES AND PREDECESSOR COMPANY

                 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                _______________


     related equipment and services for the development of the Company's
     wireless communications network. Through December 31, 1998, the Company has
     purchased approximately $90,900,000 of equipment and services from Lucent.

     The Company has operating leases primarily related to retail store
     locations, distribution outlets, office space, and rent for the Company's
     network build-out. The terms of some of the leases include a reduction of
     rental payments and scheduled rent increases at specified intervals during
     the term of the leases. The Company is recognizing rent expense on a
     straight-line basis over the life of the lease, which establishes deferred
     rent on the balance sheet. As of December 31, 1998, the aggregate minimum
     rental commitments under noncancelable operating leases are as follows:

                  1999                          $  10,755,694
                  2000                             10,752,666
                  2001                             10,507,474
                  2002                             10,369,758
                  2003                              8,520,560
                  Thereafter                       23,139,323
                                                -------------
                      Total                     $  74,045,475
                                                =============


     Rental expense, which is recorded ratably over the lease terms, was
     approximately $2,000, $157,000, and $3,193,000 for the period ended
     December 31, 1996 and for the years ended December 31, 1997 and 1998,
     respectively.

     The Company has entered into a series of agreements for software licenses,
     consulting, transition support and maintenance with various vendors. The
     total future commitments under the agreements is approximately $6,000,000
     as of December 31, 1998.

     The Company has entered into letters of credit to facilitate local business
     activities. The Company is liable under the letters of credit for
     nonperformance of certain criteria under the individual contracts. The
     total amount of outstanding letters of credit was $1,425,000 at December
     31, 1998. The outstanding letters of credit reduce the amount available to
     be drawn under the Senior Credit Facility (see Note 5). The Company is
     unaware of any events that would have resulted in nonperformance of a
     contract during the year ended December 31, 1998.

12.  Related Parties

     The Company utilizes the services of a law firm in which the Executive Vice
     President and Chief Financial Officer of the Company was also a partner.
     The Company incurred expenses of approximately $110,000, $250,000,
     $2,123,000 and $747,198 (unaudited) for the period ended December 31, 1996,
     for the years ended December 31, 1997, 1998 and for the three months ended
     March 31, 1999, respectively, for legal services. As of December 31, 1997
     and 1998 and March 31, 1999, the Company owed the law firm $70,464,
     $160,000

                                   Continued

                                     F-30
<PAGE>

          TELECORP PCS, INC. AND SUSIDIARIES AND PREDECESSOR COMPANY

                 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                _______________



     and $907,442 (unaudited), respectively. Subsequent to December 31, 1997,
     the individual resigned from the law firm but continues as special counsel.

     The Company receives site acquisition, construction management, program
     management, microwave relocation, and engineering services pursuant to a
     Master Services Agreement with WFI/Entel Technologies, Inc. (Entel). The
     Chief Executive Officer and Executive Vice President and Chief Financial
     Office of the Company were formerly stockholders and senior officers of
     Entel. Fees for the above services are as follows: $12,000 per site for
     site acquisition services, $7,000 per site for construction management
     services, $9,000 per site for program management and $1,100,000 for
     microwave relocation services for all of the Company's existing regions.
     Fees for engineering services are based upon Entel's customary hourly
     rates. For the period ended December 31, 1996 and for the years ended
     December 31, 1997 and 1998 and the three months ended March 31, 1999, the
     Company paid $30,829, $1,939,795, $30,719,865 and $22,331,512 (unaudited),
     respectively, to Entel for these services. As of December 31, 1997 and 1998
     and March 31, 1999, the Company owed Entel $170,596, $21,177,516 and
     $20,000,620 (unaudited), respectively. Subsequent to December 31, 1997, the
     Chief Executive Officer and Executive Vice President and Chief Financial
     Officer sold 100% of their interests in Entel.

     As of December 31, 1997, the Company had notes payable to affiliates of
     $2,072,573. The notes represented the net of the recorded historical costs
     of the assets, liabilities and equity interests distributed to THC Houston,
     Inc.; THC of Tampa, Inc.; THC of Melbourne, Inc.; and THC of Orlando, Inc.
     (see Note 1), and were originally comprised of the following:

                                          Due from (to)
                                              Amount
                                         ----------------

        PCS licenses                     $   15,678,814
        U.S. Government financing,
        net of discount                     (12,034,212)
        Equity interests                     (6,370,070)
                                         --------------
                                         $   (2,725,468)
                                         ==============

     In connection with the transfer of the PCS licenses, U.S. Government
     financing and equity interests, the Company reduced the notes payable to
     affiliates by $652,895, which represented certain costs incurred by the
     Company on behalf of the affiliates for the year ended December 31, 1997
     pursuant to Transfer Agreements and Management Agreements. The combined
     amounts owed THC Houston, Inc., THC Tampa, Inc., THC Melbourne, Inc., and
     THC Orlando, Inc. of $2,072,573 as of December 31, 1997 were repaid in full
     during 1998. As of December 31, 1998 and March 31, 1999, the combined
     amounts owed by the Company to THC Houston, Inc., THC Tampa, Inc., THC
     Melbourne, Inc., and THC Orlando, Inc. for various legal and administrative
     costs were $547,047 and $543,219 (unaudited), respectively.

     As of December 31, 1997, the Company had amounts payable of $824,164 to
     TeleCorp WCS, Inc. (WCS), an affiliate, formerly TeleCorp Management
     Corporation, Inc. The amount payable to WCS represented


                                   Continued

                                     F-31
<PAGE>

          TELECORP PCS, INC. AND SUSIDIARIES AND PREDECESSOR COMPANY

                 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                _______________



     $1,200,000 of funds received by the Company on behalf of WCS related to
     wireless communications service licenses owned by WCS reduced by expenses
     and other payments owed by WCS to the Company. The entire balance due WCS
     as of December 31, 1997 was repaid during 1998

     Pursuant to a Management Agreement, TeleCorp Management Corp. (TMC)
     provides assistance to the Company in the form of administrative,
     operational, marketing, regulatory and general business services. For these
     services, beginning in July 1998, the Company pays a management fee to TMC
     of $550,000 per year plus reimbursement of certain business expenses,
     payable in equal monthly installments, plus an annual bonus. The management
     agreement has a five-year term, but may be terminated by the Company upon
     the occurrence of certain defined events. TMC may terminate the agreement
     at any time with proper notice. The Officers of TMC own all of the
     ownership interest in TMC. For the year ended December 31, 1998, the
     Company paid approximately $250,000 to TMC for these services plus $282,500
     in bonuses to TMC officers. For the quarter ended March 31, 1999, the
     Company paid approximately $168,000 (unaudited) to TMC for these services.

     The Company has entered into a Master Site Lease Agreement with American
     Towers Inc., a company partially owned by certain stockholders of the
     Company. Under this arrangement American Tower provides network site leases
     for PCS deployment. The Company has incurred $16,862 and $22,639
     (unaudited) of expense for the year ended December 31, 1998 and the three
     months ended march 31, 1999, respectively.


13.  Defined Contribution Plan

     During 1998, the Company established the TeleCorp Communications, Inc.
     401(k) Plan (the 401(k) Plan), a defined contribution plan in which all
     employees over the age of 21 are immediately eligible to participate in the
     401(k) Plan. TeleCorp Communications, Inc. is a wholly-owned subsidiary of
     the Company. Under the 401(k) Plan, participants may elect to withhold up
     to 15% of their annual compensation, limited to $160,000 of total
     compensation as adjusted for inflation. The Company may make a matching
     contribution based on a percentage of the participant's contributions.
     Participants vest in the Company's matching contributions as follows: 20%
     after one year; 60% after two years and 100% after three years. Total
     Company contributions to the 401(k) Plan were $505,495 and $275,268
     (unaudited) for the year ended December 31, 1998 and for the three months
     ended March 31, 1999.

                                   Continued

                                     F-32
<PAGE>

          TELECORP PCS, INC. AND SUSIDIARIES AND PREDECESSOR COMPANY

                 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                _______________


14.  Subsidiary Guarantee

     In March 1999, the Board of Directors approved the issuance of Notes (see
     Note 15). The Notes will be fully and unconditionally guaranteed by
     TeleCorp Communications, Inc., one of the Company's wholly-owned
     subsidiaries. Summarized financial information of TeleCorp, TeleCorp
     Communications, Inc. and non-guarantor subsidiaries as of December 31, 1998
     and March 31, 1999, and for the year ended December 31, 1998 and for the
     three months ended March 31, 1999 are as follows:

<TABLE>
<CAPTION>
                                                      TeleCorp
December  31,1998                                 Communications,
- -----------------                                       Inc. -
                                                     Guarantor              Non-Guarantor
                                   TeleCorp          Subsidiary             Subsidiaries       Eliminations        Consolidated
                              -------------------------------------------------------------------------------------------------
<S>                           <C>               <C>                   <C>                    <C>                 <C>
Balance sheet information:

     Current assets           $  372,761,282    $      23,612,116     $        (1,381,050)   $ (279,077,565)     $  115,914,783
     Total assets                387,215,715          126,148,400             236,743,694      (283,463,777)        466,644,032
     Current liabilities           4,004,914          149,535,035             246,128,722      (279,077,565)        120,591,106
     Total liabilities           239,465,314          152,016,093             254,249,452      (279,077,565)        366,653,294

     Total mandatorily
      redeemable preferred
      stock, net              $  164,490,706    $               -     $                 -    $            -      $  164,490,706


     Total stockholders'
         deficit              $  (16,740,306)   $     (25,867,693)    $       (17,505,757)   $   (4,386,212)     $  (64,499,968)

Statements of operation
 information:
     Revenue                  $            -    $         806,418     $           260,509    $  (51,037,696)     $       29,231
     Operating expenses              974,761           26,734,170              17,232,368        (1,021,165)         43,920,134
     Net loss                     (8,491,946)   $     (25,845,788)    $       (16,801,015)   $      (16,531)     $  (51,155,280)

<CAPTION>
                                                   TeleCorp
March 31, 1999                                 Communications,
 (unaudited)                                        Inc. -
- --------------                                    Guarantor              Non-Guarantor
                                TeleCorp          Subsidiary              Subsidiaries          Eliminations       Consolidated
                              -------------------------------------------------------------------------------------------------
<S>                           <C>              <C>                    <C>                    <C>                 <C>
Balance sheet
 information:
     Current assets           $  421,086,940    $   11,656,431        $        196,882       $ (407,741,962)     $   25,198,291
     Total assets                438,147,052       143,554,804             288,384,417         (412,182,736)        457,903,537
     Current liabilities           3,902,657       188,777,777             299,625,414         (407,741,962)         84,563,886
     Total liabilities           289,811,751       191,303,651             311,287,874         (407,741,962)        384,661,314
     Total mandatorily
      redeemable
      preferred stock,
      net                     $  172,706,635    $            -        $              -       $            -      $  172,706,635
</TABLE>

                                   Continued

                                      F-33
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                   ________

<TABLE>
<S>                        <C>               <C>                   <C>                    <C>                 <C>
     Total stockholders'
         deficit           $  (24,371,334)   $     (42,748,847)    $       (22,903,457)   $   (4,440,774)     $  (99,464,412)
Statement of operations
 information:
     Revenue               $            -    $       4,364,371     $           485,215    $     (586,760)     $    4,262,826
     Operating expenses            59,981           26,264,610               5,762,417          (532,742)         31,554,266
     Net loss                  (3,000,301)   $     (21,908,028)    $        (5,372,980)   $      (54,018)     $  (30,335,327)
</TABLE>


15. Subsequent Events

    In February 1999, Viper Wireless, Inc. (Viper), was formed to participate in
    the C-Block PCS license reauction for additional spectrum in most of the
    Company's markets. The Company currently owns 85% of Viper and the Company's
    Chief Executive Officer and Executive Vice President and Chief Financial
    Officer collectively own the remaining 15%. Mr. Vento and Mr. Sullivan
    together currently have voting control over Viper. Upon final award of
    licenses to Viper, the Company will solicit the approval of the FCC for the
    consolidation of Viper into the Company. Any such consolidation will be
    subject to a final FCC order approving the transaction. In April 1999, Viper
    participated in the FCC's reauction of C-Block licenses for additional
    spectrum. On April 15, 1999, the FCC announced the reauction ended, and
    Viper was the current high bidder for 15 MHz licenses in New Orleans, Houma
    and Alexandria, Louisiana, San Juan, Puerto Rico and Jackson, Tennessee.
    Viper was also the current high bidder for a 30 MHz licenses in Beaumont,
    Texas. The total auction price for these licenses is approximately
    $32,286,000 plus legal costs of $46,566. During the quarter ended March 31,
    1999, the Company paid the FCC an initial deposit of $17,818,549 (unaudited)
    related to the reauction. Subsequent to March 31, 1999, the FCC refunded
    $11,361,351(unaudited) of the initial deposit. The finalization of this
    transaction is conditioned upon the receipt of final regulatory approval
    from the FCC, which is expected in the second half of 1999. The purchase
    price will be allocated to the licenses acquired, subject to adjustment,
    based upon their estimated fair value as follows:

               PCS licenses                       $  32,286,000
               Other intangible assets relating
                 to legal costs                          46,566
                                                  -------------
                                                  $  32,332,566
                                                  =============

    AT&T and certain of the Company's other stockholders have committed an
    aggregate of up to approximately $32,300,000 in exchange for additional
    shares of mandatorily redeemable preferred stock, Series F preferred stock
    and common stock in the event Viper is ultimately awarded these licenses. As
    part of this financing, the Company paid approximately $500,000 to an
    affiliate of a Cash Equity Investor in closing this transaction. In May
    1999, AT&T and the certain Cash Equity Investors funded approximately
    $6,460,000 of their commitment, with the remaining $25,840,000 to be funded
    when the Company must make payments to the FCC with respect to these
    licenses, or if the FCC does not refund amounts the Company paid to the FCC
    as deposits in connection with the reauction within 180 days of the date of
    deposit. On June 3, 1999, a petition was filed by

                                   Continued

                                      F-34
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                   ________



    certain collateralized creditors of DCR PCS, Inc. and Pocket Communications
    Inc. against the application of Viper for the Houma and New Orleans
    licenses. The petition seeks deferral of the grant of these licenses to
    Viper until an appeal by the collateralized creditors of DCR PCS, Inc. and
    Pocket Communications, Inc. has been resolved or, in the alternative, a
    condition noting that a pre-existing claim to the licenses may exist if the
    collateralized creditors of DCR PCS, Inc. and Pocket Communications are
    successful in that appeal. The appeal seeks review of the bankruptcy court's
    ruling concering DCR PCS, Inc. and Pocket Communications, Inc. permitting
    DCR PCS, Inc. to file its election notice, which ultimately resulted in the
    return of these licenses to the FCC, over the objection of the
    collateralized creditors of DCR PCS, Inc. and Pocket Communications, Inc.
    On June 15, 1999, Viper filed an opposition to the petition.

    Triton PCS, Inc. (Triton), Tritel Communications (Tritel), and the Company
    have adopted a common brand, SunCom, which is co-branded with equal emphasis
    with the AT&T brand name and logo. On April 16, 1999, Triton, Tritel and
    TeleCorp Communications, Inc. formed a new company, Affiliate License Co.,
    L.L.C., to own, register and maintain the marks SunCom, SunCom Wireless and
    other SunCom and Sun formative marks (the SunCom Marks) and to license the
    SunCom marks to Triton, Tritel and the Company. Triton, Tritel and TeleCorp
    Communications, Inc. each have a 33% membership interest in Affiliate
    License Co., L.L.C. On April 16, 1999, Triton entered into an agreement, to
    settle a potential dispute regarding prior use of the SunCom brand. In
    connection with this settlement, Triton agreed to pay $975,000 to acquire
    the SunCom Marks which were contributed to Affiliate License Co., L.L.C. The
    Company paid $325,000 in royalty payments to reimburse Triton for the
    contributed SunCom Marks.

    On April 20, 1999, the Company completed the acquisition of 10 MHz PCS
    licenses covering the Baton Rouge, Houma, Hammond and Lafayette, Louisiana
    BTA's from Digital PCS, Inc. The total purchase price of $5,979,561 was
    comprised of $2,310,000 of mandatorily redeemable preferred stock and common
    stock of the Company, the assumption of U.S. Government financing with the
    FCC of $4,100,000, less a discount of $716,995, and $286,556 in cash as
    reimbursement to Digital PCS for interest due to the FCC incurred prior to
    close and legal costs. The terms of the notes include: interest rate of
    6.25%, quarterly interest payments for a two year period and then quarterly
    principal and interest payments for the remaining 8 years. The promissory
    notes are collateralized by the underlying PCS licenses. The notes and
    related PCS licenses will be recorded net of a discount of $716,995 based on
    management's best estimate of the prevailing market interest rate at the
    time of the transaction. The purchase price has been preliminarily allocated
    to the assets acquired, subject to adjustment, based upon their estimated
    fair value as follows:

<TABLE>
<S>    <C>                                        <C>
               PCS licenses                       $   5,693,005
               Other intangible assets relating
                 to legal costs and reimbursement
                 of FCC interest                        286,556
                                                  -------------
                                                  $   5,979,561
                                                  =============
</TABLE>


    In addition, the Cash Equity Investors will contribute $5,000,000 in
    exchange for mandatorily redeemable preferred stock and common stock over a
    two year period from the close of this transaction.

    On April 20, 1999, the Company restated its Certificate of Incorporation to
    increase the total authorized number of shares to the following:

                                   Continued

                                      F-35
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                _______________


<TABLE>
<CAPTION>
                        Preferred                    Par         Shares                                 Par          Shares
                          Stock                     Value      authorized         Common Stock         Value        authorized
            -------------------------------      ----------  -------------     -----------------     ----------    ------------

            <S>                                  <C>             <C>           <S>                   <C>           <C>
            Mandatorily redeemable Series A      $   0.01        100,000       Senior                $   0.01         70,000
            Mandatorily redeemable Series B      $   0.01        200,000       Class A               $   0.01        950,000
            Mandatorily redeemable Series C      $   0.01        215,000       Class B               $   0.01        950,000
            Mandatorily redeemable Series D      $   0.01         50,000       Class C tracked       $   0.01          1,000
            Mandatorily redeemable Series E      $   0.01         30,000       Class D tracked       $   0.01          3,000
            Series F                             $   0.01         50,000       Voting Preference     $   0.01             10
                                                             -----------                                         -----------
               Total                                             645,000             Total                         1,974,010
                                                             ===========                                         ===========
</TABLE>


     On April 23, 1999, the Company completed the issuance and sale of 11 5/8%
     Senior Subordinated Discount Notes (the Notes) with an aggregate principal
     amount at maturity of $575,000,000. The Notes mature April 15, 2009, unless
     previously redeemed by the Company. The total gross proceeds from the sale
     of the Notes were $327,635,000. Offering expenses consisting of
     underwriting, printing, legal and accounting fees totaled $10,574,947. The
     Notes will increase to $575,000,000 through April 15, 2004 at a rate of 11
     5/8% compounded semi-annually. As interest accrues, it will be added to the
     principal as an increase to interest expense and the carrying value of the
     Notes until April 15, 2004. The Company will begin paying interest semi-
     annually on April 15 and October 15 of each year beginning October 15,
     2004. The Notes are not collateralized. The Notes are subordinate to all of
     the Company's existing and future senior debt and ranks equally with all
     other senior subordinated debt, and ranks senior to all of the Company's
     existing and future subordinated debt. The Notes are guaranteed by the
     Company's wholly owned subsidiary, TeleCorp Communications, Inc.

     On May 24, 1999, the Company sold mandatorily redeemable preferred stock
     and preferred stock to AT&T with an aggregate value of $40,000,000.
     Subsequently, on May 25, 1999, the Company acquired from AT&T 20 MHz PCS
     licenses covering the San Juan MTA, 27 constructed cell sites, a switching
     facility, leases for additional cell sites, the extension of the Network
     Membership License Agreement, Long Distance Agreement, Intercarrier Roamer
     Services Agreement and AT&T Exclusivity Agreement and the reimbursement of
     AT&T for microwave relocation costs, salary and lease payments (the Puerto
     Rico transaction) incurred prior to acquisition. In addition, the Company
     incurred legal fees of $500,000 related to this acquisition. The total
     purchase price of this asset acquisition was $99,672,877 in cash. The
     purchase price has been preliminarily allocated to the assets acquired,
     subject to adjustment, based upon their estimated fair value as follows:

           PCS licenses                              $   69,690,000
           Intangible assets - AT&T Agreements           17,310,000
           Cell sites, site acquisition, switching
            facility assets, and other assets             8,000,000
           Microwave relocation costs                     3,200,000

                                   Continued

                                     F-36

<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                _______________


           Other intangible assets relating
             to salary and lease
             reimbursement costs                          1,472,877
                                                     --------------
                                                     $   99,672,877
           Legal fees                                $      500,000
                                                     --------------
                                                     $  100,172,877
                                                     ==============

     As a result of completing this transaction, the Company's available
     borrowings under the Lucent Note Agreement (see Note 6) increased by
     $15,000,000 ($7,500,000 of Series A and $7,500,000 of Series B) and certain
     Cash Equity Investors have committed $39,996,600 in cash in exchange for
     mandatorily redeemable preferred and common stock. As part of the
     financing, the Company paid $2,000,000 to a Cash Equity Investor upon
     closing the transaction. The Cash Equity Investors cash commitment of
     $39,996,600 will be funded over a three year period from the close of this
     transaction. In addition, certain employees, the Chief Executive Officer
     and the Executive Vice President and Chief Financial Officer of the Company
     were issued a total of 5,643 shares and 8,212 shares of mandatorily
     redeemable Series E preferred stock and Class A common stock, respectively.
     The value of these shares will be recorded as deferred compensation and
     amortized over the related vesting periods resulting in future compensation
     expense.

     On June 2, 1999 the Company acquired from Wireless 2000, Inc. 15 MHz PCS
     licenses in the Alexandria, Lake Charles and Monroe, Louisiana BTAs. The
     total purchase price of $7,192,174 was comprised of $370,810 of mandatorily
     redeemable preferred stock and common stock of the Company, the assumption
     of U.S. Government financing with the FCC of $7,449,190, less a discount of
     $1,277,765, and $649,939 in cash as reimbursement of microwave relocation
     costs and reimbursement of FCC interest and legal costs. The purchase price
     has been preliminarily allocated to the assets acquired, subject to
     adjustment, based upon their estimated fair value as follows:

           PCS licenses                             $   6,542,235
           Other intangible assets relating
             to legal and reimbursement of
             FCC interest                                 449,939
           Microwave relocation costs                     200,000
                                                    -------------
                                                    $   7,192,174
                                                    =============


                                   Continued

                                     F-37
<PAGE>

                       Unaudited Pro Forma Balance Sheet
                       ---------------------------------


       The following unaudited pro forma condensed consolidated balance sheet is
based upon the historical consolidated financial statements of the Company.  The
unaudited pro forma adjustments are based upon available information and certain
assumptions that management of the Company believes are reasonable.  The
unaudited pro forma condensed consolidated balance sheet as of March 31, 1999
has been prepared to illustrate the effects of the Transactions (Notes a, b, c,
d and e) as if these Transactions had occurred as of March 31, 1999.

       The unaudited pro forma condensed consolidated balance sheet and
accompanying notes thereto should be read in conjunction with the historical
consolidated financial statements of the Company and the other financial
information included elsewhere in this Prospectus.  The unaudited pro forma
condensed consolidated balance sheet does not purport to be indicative of what
the Company's consolidated financial position would actually have been had the
Transactions been completed on such date, or to project the Company's
consolidated financial position for any future period.

                                   Continued

                                     F-38
<PAGE>

         TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

           UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
                             as of March 31, 1999
                                    _______

<TABLE>
<CAPTION>
                                                                         Puerto            Digital          Wireless
                                                                          Rico               PCS              2000
                                                    Historical             (a)               (b)             (c)
                                                 --------------     ---------------    --------------    -------------
Cash and cash equivalents                        $   11,210,696     $  (62,172,877)    $    (286,556)    $   (649,939)
Other current assets                                 13,987,595                  -                 -                -
                                                 --------------     ---------------    --------------    -------------
  Total current assets                               25,198,291        (62,172,877)         (286,556)        (649,939)

Property and equipment, net                         262,653,787          8,000,000                 -                -
PCS licenses and microwave relocation costs         117,531,516         72,890,000         5,693,005        6,742,235
Intangible assets - AT&T agreements                  25,369,334         17,310,000                 -                -
Deferred financing costs, net                         8,490,330                  -                 -                -
FCC deposit                                          17,818,549                  -                 -                -
Other assets                                            841,730          1,972,877           286,556          449,939
                                                 --------------     ---------------    --------------    -------------
  Total assets                                   $  457,903,537     $   38,000,000     $   5,693,005     $  6,542,235
                                                 ==============     ===============    ==============    =============

  Total current liabilities                          84,563,886                  -                 -                -
                                                 --------------     ---------------    --------------    -------------

Long-term debt                                      293,889,463                  -         3,383,005        6,171,425
Other liabilities                                     6,207,965                  -                 -                -
                                                 --------------     ---------------    --------------    -------------
                                                    384,661,314                  -         3,383,005        6,171,425
                                                 --------------     ---------------    --------------    -------------

Mandatorily redeemable preferred stock              245,131,494         40,269,666         2,304,266          369,864
                                                              -         37,894,524         4,987,239                -
Deferred compensation                                   (11,078)          (293,436)                -                -
Treasury stock, at cost                                     (12)                 -                 -                -
Preferred stock subscriptions receivable            (72,413,769)       (39,894,524)       (4,987,239)               -
                                                 --------------     ---------------    --------------    -------------
  Total mandatorily redeemable preferred stock      172,706,635         37,976,230         2,304,266          369,864
                                                 --------------     ---------------    --------------    -------------

Series F preferred stock                                    333                100                 -                -
Common stock                                              1,597                482                73                5
Additional paid-in capital                              187,498            144,973            18,422              941
Deferred compensation                                    (5,306)           (19,709)                -                -
Common stock subscriptions receivable                   (86,221)          (102,076)          (12,761)               -
Treasury stock, at cost                                     (26)                 -                 -                -
Accumulated deficit                                 (99,562,287)                 -                 -                -
                                                 --------------     ---------------    --------------    -------------
  Total stockholders equity (deficit)               (99,464,412)            23,770             5,734              946
                                                 --------------     ---------------    --------------    -------------
  Total liabilities, mandatorily redeemable
   preferred stock and stockholders' equity
   (deficit)                                     $  457,903,537     $   38,000,000     $   5,693,005     $  6,542,235
                                                 ==============     ===============    ==============    =============

<CAPTION>

                                                                            Offering            Pro
                                                 Viper Wireless (d)           (e)              Forma
                                                 -------------------    --------------    ---------------
<S>                                              <C>                    <C>               <C>
Cash and cash equivalents                        $      (15,014,017)    $  296,960,053    $   230,047,360
Other current assets                                              -                  -         13,987,595
                                                 -------------------    --------------    ---------------
  Total current assets                                  (15,014,017)       296,960,053        244,034,955

Property and equipment, net                                       -                  -        270,653,787
PCS licenses and microwave relocation costs              32,286,000                  -        235,142,756
Intangible assets - AT&T agreements                               -                  -         42,679,334
Deferred financing costs, net                                     -         10,574,947         19,065,277
FCC deposit                                             (17,818,549)                 -                  -
Other assets                                                 46,566                  -          3,597,668
                                                 -------------------    --------------    ---------------
  Total assets                                   $         (500,000)    $  307,535,000    $   815,173,777
                                                 ===================    ==============    ===============

  Total current liabilities                                       -                  -         84,563,886
                                                 -------------------    --------------    ---------------

Long-term debt                                                    -        307,535,000        610,978,893
Other liabilities                                                 -                  -          6,207,965
                                                 -------------------    --------------    ---------------
                                                                  -        307,535,000        701,750,744
                                                 -------------------    --------------    ---------------

Mandatorily redeemable preferred stock                   31,703,603                  -        362,660,656
                                                                  -                  -
Deferred compensation                                             -                  -           (304,514)
Treasury stock, at cost                                           -                  -                (12)
Preferred stock subscriptions receivable                (32,203,603)                 -       (149,499,135)
                                                 -------------------    --------------    ---------------
  Total mandatorily redeemable preferred stock             (500,000)                 -        212,856,995
                                                 -------------------    --------------    ---------------

Series F preferred stock                                         49                  -                482
Common stock                                                    274                  -              2,431
Additional paid-in capital                                   82,074                  -            433,908
Deferred compensation                                             -                  -            (25,015)
Common stock subscriptions receivable                       (82,397)                 -           (283,455)
Treasury stock, at cost                                           -                  -                (26)
Accumulated deficit                                               -                  -        (99,562,287)
                                                 -------------------    --------------    ---------------
  Total stockholders equity (deficit)                             -                           (99,433,962)
                                                 -------------------    --------------    ---------------
  Total liabilities, mandatorily redeemable
   preferred stock and stockholders' equity
   (deficit)                                     $         (500,000)    $  307,535,000    $   815,173,777
                                                 ===================    ==============    ===============
</TABLE>

   The accompanying notes are an integral part of this unaudited pro forma
                           condensed balance sheet.

                                     F-39
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                    NOTES TO UNAUDITED PRO FORMA CONDENSED

                          CONSOLIDATED BALANCE SHEET

                                     _____


(a)  On May 24, 1999, the Company sold mandatorily redeemable preferred stock
     and preferred stock to AT&T with an aggregate value of $40,000,000.
     Subsequently, on May 25, 1999, the Company acquired from AT&T 20 MHz PCS
     licenses covering the San Juan MTA, 27 constructed cell sites, a switching
     facility, leases for additional cell sites, the extension of the Network
     Membership License Agreement, Long Distance Agreement, Intercarrier Roamer
     Services Agreement and AT&T Exclusivity Agreement and the reimbursement of
     AT&T for microwave relocation costs, salary and lease payments (the Puerto
     Rico transaction) incurred prior to acquisition. In addition, the Company
     incurred legal fees of $500,000 related to this acquisition. The total
     purchase price of this asset acquisition was $99,672,877 in cash. The
     purchase price has been preliminarily allocated to the assets acquired,
     subject to adjustment, based upon their estimated fair value as follows:

<TABLE>
               <S>                                          <C>
               PCS licenses                                 $   69,690,000
               Intangible assets- AT&T Agreements               17,310,000
               Cell sites, site acquisition, switching
                facility assets, and other assets                8,000,000
               Microwave relocation costs                        3,200,000
               Other intangible assets relating to salary
                and lease reimbursement costs                    1,972,877
                                                            --------------
                                                            $   99,672,877
               Legal fees                                          500,000
                                                            --------------
                                                            $  100,172,877
                                                            ==============
</TABLE>

     As a result of completing this transaction, the Company's available
     borrowings under the Lucent Note Agreement (see Note 6) shall increase
     $15,000,000 ($7,500,000 of series A and $7,500,000 of series B) and certain
     Cash Equity Investors have committed $39,996,600 in cash in exchange for
     mandatorily redeemable preferred and common stock. As part of this
     financing, the Company paid $2,000,000 to a Cash Equity Investor upon
     closing this transaction. The Cash Equity Investors cash commitment of
     $39,996,600 will be funded over a three year period from the close of this
     transaction. In addition, certain employees, the Chief Executive Officer
     and the Executive Vice President and Chief Financial Officer of the Company
     will be issued a total of 5,643 shares and 8,212 shares of mandatorily
     redeemable Series E preferred stock and Class A common stock, respectively.
     The value of these shares will be recorded as deferred compensation and
     amortized over the related vesting periods resulting in future compensation
     expense.

(b)  On April 20, 1999, the Company completed the acquisition of 10 MHz PCS
     licenses covering the Baton Rouge, Houma, Hammond and Lafayette, Louisiana
     BTA's from Digital PCS, Inc.  The total purchase price of $5,979,561,
     comprised of $2,310,000 of mandatorily redeemable preferred stock and
     common stock of the Company, the assumption of U.S. Government financing
     with the FCC of $4,100,000, less a discount of $716,995, and $286,556 in
     cash as reimbursement to Digital PCS for interest due to the FCC incurred
     prior to close and legal costs.  The terms of the notes include: interest
     rate of 6.25%, quarterly interest payments for a two year period and then
     quarterly principal and interest payments for the remaining 8 years.  The
     promissory notes are collateralized by the underlying PCS licenses.  The
     notes and related PCS licenses will be recorded net of a discount of
     $716,995 based on management's best estimate of the prevailing market
     interest rate at the time of the transaction.  The purchase price has been
     preliminarily allocated to the assets acquired, subject to adjustment,
     based upon their estimated fair value as follows:

<TABLE>
               <S>                                          <C>
               PCS licenses                                 $   5,693,005
               Other intangible assets relating to legal
                 costs and reimbursement of FCC interest          286,556
</TABLE>

                                     F-40
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                    NOTES TO UNAUDITED PRO FORMA CONDENSED

                          CONSOLIDATED BALANCE SHEET

                                     _____


                                                               --------------
                                                                $   5,979,561
                                                               ==============

     In addition, the Cash Equity Investors will contribute $5,000,000 in
     exchange for mandatorily redeemable preferred stock and common stock over a
     two year period from the close of this transaction.

(c)  On June 2, 1999 the Company acquired from Wireless 2000, Inc. 15 MHz PCS
     licenses in the Alexandria, Lake Charles and Monroe, Louisiana BTAs.  The
     total purchase price of $7,192,174, was comprised of $370,810 of
     mandatorily redeemable preferred stock and common stock of the Company, the
     assumption of U.S. Government financing with the FCC of $7,449,190, less a
     discount of $1,277,765 and $649,939 in cash as reimbursement of microwave
     relocation costs and reimbursement of FCC interest and legal costs. The
     purchase price has been preliminarily allocated to the assets acquired,
     subject to adjustment, based upon their estimated fair value as follows:


<TABLE>
               <S>                                             <C>
               PCS licenses                                    $   6,542,235
               Other intangible assets relating to legal and
                reimbursement of FCC interest                        449,939
               Microwave relocation costs                            200,000
                                                               -------------
                                                               $   7,192,174
                                                               =============
</TABLE>


(d)  In February 1999, Viper was formed to participate in the C-Block PCS
     license reauction for additional spectrum in most of the Company's markets.
     The Company currently owns 85% of Viper and the Company's Chief Executive
     Officer and Executive Vice President and Chief Financial Officer
     collectively own the remaining 15%. Mr.Vento and Mr.Sullivan together
     currently have voting control over Viper. Upon final award of licenses to
     Viper, the Company will solicit the approval of the FCC for the
     consolidation of Viper into the Company. Any such consolidation will be
     subject to a final FCC order approving the transaction.

     In April 1999, Viper participated in the FCC's reauction of C-Block
     licenses for additional spectrum. On April 15, 1999, the FCC announced the
     reauction ended, and Viper was the current high bidder for 15 MHz licenses
     in New Orleans, Houma and Alexandria, Louisiana, San Juan, Puerto Rico and
     Jackson, Tennessee. Viper was also the current high bidder for a 30 MHz
     licenses in Beaumont, Texas. The total auction price for these licenses is
     approximately $32,286,000. During the quarter ended March 31, 1999, the
     Company paid the FCC an initial deposit of $17,818,549 related to the
     reauction. Subsequent to March 31, 1999, the FCC refunded $11,361,351 of
     the initial deposit. The finalization of this transaction is conditioned
     upon the receipt of final regulatory approval from the FCC, which is
     expected in the second half of 1999. The purchase price will be allocated
     to the licenses acquired, subject to adjustment, based upon their estimated
     fair value as follows:

<TABLE>
               <S>                                             <C>
               PCS licenses                                    $  32,286,000
               Other intangible assets relating
                to legal costs                                        46,566
                                                              --------------
                                                               $  32,332,566
                                                              ==============
</TABLE>

     AT&T and certain of the Company's other stockholders have committed an
     aggregate of up to approximately $32,300,000 in exchange for additional
     shares of mandatorily redeemable preferred stock, Series F preferred stock
     and common stock in the event Viper is ultimately awarded these licenses.
     As part of this financing, the Company paid $500,000 to an affliate of a
     Cash Equity Investor upon closing this transaction. In May 1999, AT&T and
     the certain Cash Equity Investors funded approximately $6,460,000 of their
     commitment, with the remaining $25,840,000 to be funded when the Company
     must make payments to the FCC with respect to these licenses, or if the FCC
     does not refund amounts the Company paid to the FCC as deposits in
     connection with the reauction within 180 days of the date of deposit. On
     June 3, 1999, a petition was filed by certain collateralized creditors of
     DCR PCS, Inc. and Pocket Communications Inc. against the application of
     Viper

                                     F-41
<PAGE>

          TELECORP PCS, INC. AND SUBSIDIARIES AND PREDECESSOR COMPANY

                    NOTES TO UNAUDITED PRO FORMA CONDENSED

                          CONSOLIDATED BALANCE SHEET

                                     _____


     for the Houma and New Orleans licenses. The petition seeks deferral of the
     grant of these licenses to Viper until an appeal by the collateralized
     creditors of DCR PCS, Inc. and Pocket Communications, Inc. has been
     resolved or, in the alternative, a condition noting that a pre-existing
     claim to the licenses may exist if the collateralized creditors of DCR PCS,
     Inc. and Pocket Communications are successful in that appeal. The appeal
     seeks review of the bankruptcy court's ruling concerning DCR PCS, Inc. and
     Pocket Communications, Inc. permitting DCR PCS, Inc. to file its election
     notice, which ultimately resulted in the return of these licenses to the
     FCC, over the objection of the collateralized creditors of DCR PCS, Inc.
     and Pocket Communications, Inc. On June 15, 1999, Viper filed an opposition
     to the petition.

(e)  Adjustments reflect the receipt of $296,960,053 of proceeds for the sale of
     the Notes, net of offering expenses of $10,574,947 and the repayment of the
     Lucent Series B Notes of approximately $20,100,000 outstanding as of March
     31, 1999 (unaudited).

                                     F-42
<PAGE>

================================================================================
WE HAVE NOT AUTHORIZED ANY DEALER, SALESPERSON OR OTHER PERSON TO GIVE ANY
INFORMATION OR REPRESENT ANYTHING NOT CONTAINED IN THIS PROSPECTUS. YOU MUST NOT
RELY ON ANY UNAUTHORIZED INFORMATION. THIS PROSPECTUS DOES NOT OFFER TO SELL OR
BUY ANY SECURITIES IN ANY JURISDICTION WHERE IT IS UNLAWFUL. THE INFORMATION IN
THIS PROSPECTUS IS CURRENT AS OF              , 1999.


                               TABLE OF CONTENTS

Prospectus Summary..........................................................   1
Risk Factors................................................................  13
Use of Proceeds.............................................................  27
Capitalization..............................................................  28
Selected Historical and Pro Forma Consolidated
 Financial Information......................................................  30
Management's Discussion and Analysis of
 Financial Condition and Results of Operations..............................  31
Business....................................................................  37
The Exchange Offer..........................................................  50
Management..................................................................  56
Securities Ownership of Certain Beneficial Owners
 and Management.............................................................  62
Certain Relationships and Related Transactions..............................  65
Certain Indebtedness........................................................  72
Description of Capital Stock................................................  77
Description of the Notes....................................................  82
Certain U.S. Federal Tax Considerations..................................... 117
Book-Entry; Delivery and Form............................................... 122
Plan of Distribution........................................................ 124
Legal Matters............................................................... 124
Experts..................................................................... 124
Available Information....................................................... 124
Glossary of Selected Terms.................................................. 126
Index to Financial Statements............................................... F-1


UNTIL             , 1999, ALL DEALERS THAT EFFECT TRANSACTIONS IN THESE
SECURITIES, WHETHER OR NOT PARTICIPATING IN THE EXCHANGE OFFER, MAY BE REQUIRED
TO DELIVER A PROSPECTUS IN CONNECTION THEREWITH. THIS IS IN ADDITION TO THE
OBLIGATION OF DEALERS TO DELIVER A PROSPECTUS. WHEN ACTING AS UNDERWRITERS AND
WITH RESPECT TO THEIR UNSOLD ALLOTMENTS OR SUBSCRIPTIONS.


                              TELECORP PCS, INC.



                                  575,000,000


                         OFFER TO EXCHANGE ALL OF OUR
                         OUTSTANDING AND UNREGISTERED
                    11 5/8% SENIOR SUBORDINATED DISCOUNT
                                NOTES DUE 2009
                              FOR OUR REGISTERED
                     11 5/8% SENIOR SUBORDINATED DISCOUNT
                                NOTES DUE 2009






                             ----------------------

                                  PROSPECTUS

                             ----------------------


                                    , 1999

================================================================================
<PAGE>

                                                              [ALTERNATIVE PAGE]

 THIS PROSPECTUS, DATED JUNE __, 1999, IS SUBJECT TO COMPLETION AND AMENDMENT

PROSPECTUS

                              TELECORP PCS, INC.
              11 5/8% SENIOR SUBORDINATED DISCOUNT NOTES DUE 2009

     YOU SHOULD CAREFULLY REVIEW THE RISK FACTORS BEGINNING ON PAGE __ OF THIS
PROSPECTUS.

                          INFORMATION ABOUT THE NOTES

<TABLE>
<CAPTION>
Maturity                                                         Change of Control
<S>                                                              <C>
 .  The Notes will mature on April 15, 2009,                      .  If we experience a change of control, you may require us to
   unless previously redeemed.                                      purchase the Notes.
Interest and Accretion                                           Security and Ranking
 .  We issued the Notes at a discount to their principal          .  The Notes are not secured by any collateral.
   amount at maturity.                                           .  The Notes are subordinate to all of our existing and future
 .  The Notes will accrete in value until April 15, 2004 at a        senior debt.
   rate of 11 5/8% compounded semi-annually.                     .  The Notes rank equally with all of our other senior
 .  We will pay interest semiannually on April 15 and October        subordinated debt.
   15 of each year beginning October 15, 2004.                   .  The Notes rank senior to all of our existing and future
                                                                    subordinated debt.

Redemption                                                       Guarantees
 .  We may redeem some or all of the Notes at any time after      .  If we fail to make payments on the Notes, our guarantor
   April 15, 2004.                                                  subsidiaries must make them instead.  These guaranties will be
 .  We also may redeem up to 35% of the aggregate principal          senior subordinated obligations of our guarantor subsidiaries.
   amount at maturity of the Notes using the proceeds of            Not all of our subsidiaries will be guaranteeing our payments
   certain equity offerings completed before April 15, 2002.        on the Notes.
 .  See page __ for the redemption prices.
</TABLE>

Neither the SEC nor any state securities commission has approved or disapproved
of the Notes, or determined that this prospectus is truthful or complete.  Any
representation to the contrary is a criminal offense.

   Chase Securities Inc. ("CSI") may use this prospectus in connection with
offers and sales of the Notes in market-making transactions at negotiated prices
related to prevailing market prices at the time of sale.  CSI may act as a
principal or agent in such transactions.  We will receive no portion of the
proceeds of the sale of such Notes and will bear the expenses incident to their
registration.  For as long as a market-making prospectus is required to be
delivered, the ability of CSI to make a market in the Notes may in part depend
on our ability to maintain a current market-making prospectus.

                          The date of this prospectus is           , 1999.

                                      A-1
<PAGE>

                                                              [ALTERNATIVE PAGE]

               SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

     All statements contained in this prospectus, as well as statements made in
press releases and oral statements that may be made by us or any of our
officers, directors or employees acting on our behalf, that are not statements
of historical fact, including, but not limited to, statements regarding our
current business strategy, future operations, technical capabilities,
construction plan and schedule, commercial operations schedule, funding needs,
prospective acquisitions or joint ventures, financing sources, pricing, future
regulatory approvals, markets, size of markets for wireless communications
services, financial position, estimated revenues, projected costs, prospects,
plans and objectives of management, as well as information concerning expected
actions of third parties, such as equipment suppliers, service providers and
roaming partners, and expected characteristics of competing systems, are based
upon current expectations and constitute "forward-looking statements" within the
meaning of the Private Securities Litigation Reform Act of 1995 and, as such,
speak only as of the date made. Such forward-looking statements involve known
and unknown risks, uncertainties and other factors that could cause our actual
results to be materially different from historical results or from any future
results expressed or implied by such forward-looking statements. Among the
factors that could cause actual results to differ materially are the following:
the availability of sufficient capital to finance our business plan on terms
satisfactory to us; competitive factors; changes in labor, equipment and capital
costs; our ability to obtain necessary regulatory approvals; technological
changes; our ability to comply with the indenture governing the Notes and the
terms of our other credit agreements; future acquisitions or strategic
partnerships; general business and economic conditions; and other factors
described under the heading "Risk Factors."  We caution readers not to place
undue reliance on any forward-looking statements. In addition to statements that
explicitly describe such risks and uncertainties, readers are urged to consider
statements that include the terms "believes," "belief," "expects," "plans,"
"anticipates," "intends," "estimates," "projects" or the like to be uncertain
and forward-looking.  We have no obligation to update or revise publicly any
forward-looking statements, whether as a result of new information, future
events or otherwise. Although we believe that the expectations underlying the
forward-looking statements are reasonable, we cannot assure that such
expectations will prove to be correct.

     We disclose important factors that could cause our actual results to differ
materially from our expectations ("cautionary statements") under the heading
"Risk Factors" and elsewhere in the prospectus.  The cautionary statements
qualify all forward-looking statements attributable to us or persons acting on
our behalf.

                                      A-2
<PAGE>

                                                             [ALTERNATIVE PAGE]

                                 Risk Factors

     You should consider carefully all of the information set forth in this
prospectus and, in particular, you should evaluate the specific factors under
"Risk Factors" beginning on the next page before you invest in the Notes.

                                      A-3
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

[The following provisions replace the provisions under the same headings in the
prospectus in the "Risk Factors" section.]

                                 RISK FACTORS

We may need additional financing to complete our network and fund operating
losses.

     We will make significant capital expenditures to finish the designing,
building, testing and deployment of our network. We estimate that the proceeds
from the original private offering of the Notes, together with the proceeds from
sales of our equity securities, borrowings under our senior credit facilities
and the vendor financing provided by Lucent, and internally generated cash, will
be sufficient to:

          .  fund the planned construction of our network;

          .  fund operating losses; and

          .  satisfy debt service requirements through December 31, 2002.

See "Use of Proceeds" and "Business--Network Development." The actual
expenditures necessary to achieve these goals may differ significantly from our
estimates. We would have to obtain additional financing, if:

          .  any of our sources of capital are unavailable or insufficient;

          .  we significantly depart from our business plan;

          .  we experience unexpected delays or cost overruns in the
             construction of our network;

          .  we have increases in operating costs;

          .  changes in technology or governmental regulations create
             unanticipated costs; or

          .  we acquire additional licenses.

     We cannot predict whether any additional financing will be available, the
terms on which any additional financing would be available or whether our
existing debt agreements will allow additional financing. If we cannot obtain
additional financing when needed, we will have to delay, modify or abandon some
of our plans to construct the remainder of our network.

      We have sold $205.3 million of equity securities. As of March 31, 1999, we
had received payments of $55.5 million in payment for such securities. The
remaining $149.8 million (including $32.3 million of commitments to reimburse us
for costs incurred in connection with the FCC's reauction of C-Block licenses)
has been irrevocably committed and will be paid within three years. If we do not
receive the proceeds from sales of our equity securities in a timely manner, our
ability to complete construction of our network, successfully implement our
business plan and capitalize on opportunities for growth could be materially
adversely affected.

This prospectus contains forward-looking statements that may be incorrect.

     All statements in this prospectus that are not statements of historical
facts are forward-looking statements. Forward-looking statements concern our
strategy, future operations, technical capabilities, construction plan and
schedule, commercial operations schedule, funding needs, prospective
acquisitions or joint ventures, financing sources, pricing, future regulatory
approvals, markets, size of markets for wireless communications services,
financial position, estimated revenues, projected costs, prospects, plans and
objectives of management, as well as information concerning expected actions of
third parties such as equipment suppliers, service providers and roaming
partners, and expected characteristics of competing systems. Although we believe
that the expectations underlying such forward-looking statements are reasonable,
forward-looking statements are inherently speculative, and they may be
incorrect. Our business, operations and financial results may differ materially
from the expectations expressed or implied in the forward-looking statements in
this prospectus. You should consider carefully the factors described in this
section and the other information in this prospectus before you invest in the
Notes.

                                      A-4
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

     The information set forth under "Business--Network Development," other than
historical information, the statements in this prospectus regarding the years
during which we expect to continue to incur significant operating losses and to
generate negative cash flow from operating activities and the statements in this
prospectus regarding our anticipated capital needs are forward-looking
statements based upon a number of specific assumptions. These assumptions
include the following:

          .  we will not incur any unanticipated costs in the construction of
             our network;

          .  we will be able to compete successfully in each of our markets;

          .  demand for our services will meet wireless communications industry
             projections;

          .  our network will satisfy the requirements set forth in our
             agreements with AT&T and support the services we expect to provide;

          .  the capacity of our network will be sufficient to meet the level of
             service reflected in our business plan;

          .  we will be successful in working with AT&T and the other SunCom
             companies, as well as with other providers of wireless
             communications services and roaming partners, to ensure effective
             marketing of our network and the services we intend to offer;

          .  there will be no change in any governmental regulation or the
             administration of existing governmental regulations that requires a
             material change in the operation of our business; and

          .  there will be no change in any of our material contracts that
             adversely affects us.

     Although we believe that these assumptions are reasonable, they may be
incorrect. If one or more of these assumptions is incorrect, our business,
operations and financial results may differ materially from the expectations,
expressed or implied, in the forward-looking statements in this prospectus.

A market for unregistered Notes may weaken the market for the registered Notes,
and vice versa.

     The existence of a market for registered Notes could adversely affect the
market for unregistered Notes due to the limited amount, or "float," of the
unregistered Notes that remain outstanding.  Generally, a lower "float" of a
security could result in less demand to purchase such security and could result
in lower prices for such security.  For the same reasons, the existence of a
market for unregistered Notes could adversely affect the trading market for the
registered Notes.

There is no public market for the Notes and there are restrictions on the resale
of the Notes.

     The Notes are new securities with no established trading market.  We do not
intend to list the Notes on any securities exchange.  CSI, one of the initial
purchasers of the Notes in the original private offering, has told us that they
intend to make a market in the Notes, as the law permits.  CSI is not obligated
to make a market, and may discontinue any such activities at any time without
notice.  If CSI conducts any market-making activities, it may be required to
deliver a market-making prospectus when effecting offers and sales of the Notes
because affiliates of CSI beneficially own some of our capital stock.  For so
long as a market-making prospectus is required to be delivered, the ability of
CSI to make a market in the Notes depends, in part, on our ability to maintain a
current market-making prospectus.  We cannot ensure that an active market for
the Notes will develop.

                                      A-5
<PAGE>

                                                           [ALTERNATIVE SECTION]

                                USE OF PROCEEDS

     The net proceeds from the original private offering of the Notes, after
deducting the initial purchasers' discounts and estimated fees and expenses
payable by us, were approximately $317.0 million.  We used $40.0 million of the
net proceeds to repay vendor financing from Lucent.  We intend to use the
remaining net proceeds from the private offering of the Notes, together with
proceeds from sales of our equity securities, borrowings under our senior credit
facilities, other vendor financing provided by Lucent and internally generated
cash, to fund capital expenditures, acquisitions of PCS licenses, operating
losses and other working capital requirements.  We did not receive proceeds from
the exchange offer relating to the Notes, and will not receive any proceeds from
market-making transactions by CSI.  See "Business--Network Development" and
"Management's Discussion and Analysis of Financial Condition and Results of
Operations--Liquidity and Capital Resources."

                                      A-6
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

[The following provisions replace the provisions under the same headings in the
prospectus in the "Description of the Notes" section.]


                            DESCRIPTION OF THE NOTES

General

     As used in this section entitled "Description of the Notes," the terms
"we," "us" and "our" means TeleCorp PCS, Inc., a Delaware corporation, but does
not include any of our subsidiaries. Capitalized terms used in this section and
not otherwise defined have the meanings set forth under "--Certain Definitions."

     The Notes have been issued under the Indenture, dated as of April 23, 1999
(the "Indenture"), among us, TeleCorp Communications, as our subsidiary
guarantor, and Bankers Trust Company, as Trustee (the "Trustee"), a copy of
which is available.

     The following summary of certain provisions of the Indenture and the Notes
is not complete and is subject to, and is qualified in its entirety by reference
to, all the provisions of the Indenture, including the definitions of certain
terms in and those terms made a part of the Indenture and the Notes by the TIA.

     Principal of, premium, if any, and interest on the Notes will be payable,
and the Notes may be exchanged or transferred, at our office or agency in the
Borough of Manhattan, The City of New York (which initially shall be the
corporate trust office of the Trustee, at 4 Albany Street, New York, New York
10006), except that, at our option, payment of interest may be made by check
mailed to the registered holders of the Notes at their registered addresses.

     The Notes are and will be issued only in fully registered form, without
coupons, in denominations of $1,000 and integral multiples of $1,000.  No
service charge will be made for any registration of transfer or exchange of
Notes, but we may require payment of a sum sufficient to cover any transfer tax
or other similar governmental charge payable in connection with such transfer or
exchange.

Certain Covenants

     Provision of Financial Information. The Indenture provides that, whether or
not required by the rules and regulations of the SEC, so long as any Notes are
outstanding, we will furnish to the holders of the Notes:

     (1)  all quarterly and annual financial information that would be required
          to be contained in a filing with the SEC on Forms 10-Q and 10-K if we
          were required to file such forms, including a section entitled
          "Management's Discussion and Analysis of Financial Condition and
          Results of Operations" that describes our financial condition and
          results of operations and that of our consolidated Subsidiaries and a
          report on such annual information only by our certified independent
          accountants; and

     (2)  all current reports that would be required to be filed with the SEC on
          Form 8-K if we were required to file such reports, in each case within
          the time period specified in the SEC's rules and regulations.

     We will file a copy of all such information and reports with the SEC for
public availability within the time periods specified in the SEC's rules and
regulations (unless the SEC will not accept such a filing) and make such
information available to prospective investors upon request. In addition, the
Company will, for so long as any Notes remain outstanding, furnish to the
holders of Notes, upon request, the information required to be delivered under
Rule 144A(d)(4) of the Securities Act. The Company will also comply with Section
314(a) of the TIA.

Amendments and Waivers

     Subject to certain exceptions, the Indenture or the Notes may be amended
with the written consent of the holders of a majority in aggregate principal
amount at maturity of the Notes then outstanding, and any past default or
compliance with any provisions may be waived with the consent of the holders of
a majority in aggregate principal amount at maturity of the Notes then
outstanding. However, without the consent of each holder of an outstanding Note
affected, no amendment may, among other things:

     (1)  reduce the amount of the Notes whose holders must consent to an
          amendment;

                                      A-7
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

     (2)  reduce the rate of, or extend the time for payment of, interest or any
          liquidated damages on any Note;

     (3)  reduce the principal of, or extend the Stated Maturity of, any Note;

     (4)  reduce the premium payable upon the redemption of any Note or change
          the time at which any Note may be redeemed as described under "--
          Optional Redemption;"

     (5)  make any Note payable in money other than that stated in the Note;

     (6)  make any change to the subordination provisions of the Indenture that
          adversely affects the rights of any holder of Notes;

     (7)  impair the right of any holder of Notes to receive payment of
          principal of and interest or any liquidated damages on such holder's
          Notes on or after the due dates for such payment or to institute suit
          for the enforcement of any payment on or with respect to such holder's
          Notes;

     (8)  make any change in the amendment provisions which requires the consent
          of each holder of the Notes or in the waiver provisions; or

     (9)  modify the Subsidiary Guarantees in any manner adverse to the holders
          of the Notes.

     Without the consent of any holder of the Notes, we and the Trustee may
amend the Indenture to:

     (1)  cure any ambiguity, omission, defect or inconsistency;

     (2)  provide for the assumption by a successor corporation of our
          obligations under the Indenture;

     (3)  provide for uncertificated Notes in addition to, or in place of,
          certificated Notes (provided that the uncertificated Notes are issued
          in registered form for purposes of Section 163(f) of the Code, or in a
          manner such that the uncertificated Notes are described in Section
          163(f)(2)(B) of the Code);

     (4)  make any change in the subordination provisions of the Indenture that
          would limit or terminate the benefits available to any holder of our
          Senior Indebtedness or any representative of such holder under such
          subordination provisions;

     (5)  add additional guarantees with respect to the Notes;

     (6)  secure the Notes;

     (7)  add to our covenants for the benefit of the Noteholders;

     (8)  surrender any right or power conferred upon us;

     (9)  make any change that does not adversely affect the rights of any
          holder of the Notes; or

     (10) comply with any requirement of the SEC in connection with the
          qualification of the Indenture under the TIA.

     No amendment may be made to the subordination provisions of the Indenture,
however, that adversely affects the rights of any holder of our Senior
Indebtedness then outstanding unless the holders of such Senior Indebtedness, or
any group or representative of such holders authorized to give a consent,
consent to such change.

     The consent of the Noteholders will not be necessary under the Indenture to
approve the particular form of any proposed amendment. It will be sufficient if
such consent approves the substance of the proposed amendment.

     After an amendment under the Indenture becomes effective, we will be
required to mail to Noteholders a notice briefly describing such amendment.
However, the failure to give such notice to all Noteholders, or any defect in
such notice, will not impair or affect the validity of the amendment.

                                      A-8
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

Certain Definitions

     Set forth below is a summary of certain of the defined terms used in the
Indenture, which is attached as an exhibit to the registration statement.

     "Accreted Value" means, as of any date of determination prior to April 15,
2004, the sum of:

     (1)  the initial offering price of each Note; and

     (2)  the portion of the excess of the principal amount of each Note over
          such initial offering price which we shall have amortized in
          accordance with GAAP through such date, such amount to be so amortized
          on a daily basis and compounded semiannually on each interest payment
          date at a rate of 11 5/8% per annum from the date of the Indenture
          through the date of determination computed on the basis of a 360-day
          year of twelve 30-day months.

     "Acquired Indebtedness" means, with respect to any Person, Indebtedness of
such Person:

     (1)  existing at the time such Person becomes a Restricted Subsidiary; or

     (2)  assumed in connection with the acquisition of assets from another
          Person, including Indebtedness Incurred in connection with, or in
          contemplation of, such Person becoming a Restricted Subsidiary or such
          acquisition, as the case may be.

     "Acquisitions" means the Digital Acquisition, the Puerto Rico Acquisition
and the Wireless 2000 Acquisition.

     "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by, or under direct or indirect common
control with, any specified Person. For purposes of this definition, "control"
when used with respect to any Person means the power to direct the management
and policies of such Person, directly or indirectly, whether through the
ownership of voting securities, by contract or otherwise; and the terms
"controlling" and "controlled" have meanings correlative to the foregoing.

     "Annualized Pro Forma Consolidated Operating Cash Flow" means Consolidated
Cash Flow for the latest two full fiscal quarters for which our consolidated
financial statements are available multiplied by two. For purposes of
calculating "Consolidated Cash Flow" for any period for purposes of this
definition only:

     (1)  any of our Subsidiaries that is a Restricted Subsidiary on the date of
          the transaction giving rise to the need to calculate "Annualized Pro
          Forma Consolidated Operating Cash Flow" (the "Transaction Date") shall
          be deemed to have been a Restricted Subsidiary at all times during
          such period; and

     (2)  any of our Subsidiaries that is not a Restricted Subsidiary on the
          Transaction Date shall be deemed not to have been a Restricted
          Subsidiary at any time during such period.

In addition to and without limitation of the foregoing, for purposes of this
definition only, "Consolidated Cash Flow" shall be calculated after giving
effect on a pro forma basis for the applicable period to, without duplication,
any Asset Dispositions or Asset Acquisitions, including, without limitation, any
Asset Acquisition giving rise to the need to make such calculation as a result
of our or one of the Restricted Subsidiaries, including any Person who becomes a
Restricted Subsidiary as a result of the Asset Acquisition Incurring, assuming
or otherwise being liable for Acquired Indebtedness, occurring during the period
commencing on the first day of such two-fiscal-quarter period to and including
the Transaction Date (the "Reference Period"), as if such Asset Sale or Asset
Acquisition occurred on the first day of the Reference Period.

     "Asset Acquisition" means:

     (1)  any purchase or other acquisition, by means of transfer of cash,
          Indebtedness or other property to others or payment for property or
          services for the account or use of others or otherwise, of Capital
          Stock of any Person by us or any Restricted Subsidiary, in either
          case, under which such Person shall become a Restricted Subsidiary or
          shall be merged with or into us or any Restricted Subsidiary; or

     (2)  any acquisition by us or any Restricted Subsidiary of the property or
          assets of any Person which constitute all or substantially all of an
          operating unit or line of business of such Person.

                                      A-9
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

     "Asset Disposition" means any sale, transfer or other disposition
(including, without limitation, by merger, consolidation or Sale/Leaseback
Transaction) of:

     (1)  shares of Capital Stock of any of our Subsidiaries, other than
          directors' qualifying shares;

     (2)  any License for the provision of wireless telecommunications services
          held by us or any Restricted Subsidiary, whether by sale of Capital
          Stock or otherwise; or

     (3)  any other property or assets of ours or any of our Subsidiaries other
          than in the ordinary course of business;

provided, however, that an Asset Disposition shall not include:

     (A)  any sale, transfer or other disposition of shares of Capital Stock,
          property or assets by a Restricted Subsidiary to us or to any other
          Restricted Subsidiary or by us to any Restricted Subsidiary;

     (B)  any sale, transfer or other disposition of defaulted receivables for
          collection;

     (C)  the sale, lease, conveyance or disposition or other transfer of all or
          substantially all of our assets as permitted under "--Covenants--
          Merger, Consolidation and Certain Sales of Assets;"

     (D)  any disposition that constitutes a Change of Control; or

     (E)  any sale, transfer or other disposition of shares of Capital Stock of
          any Marketing Affiliate; provided that such Marketing Affiliate is not
          engaged in any activity other than the registration, holding,
          maintenance or protection of trademarks and such related licensing; or

     (F)  any sale, transfer or other disposition that does not, together with
          all related sales, transfers or dispositions, involve aggregate
          consideration in excess of $5.0 million.

     "AT&T Wireless" means AT&T Wireless PCS Inc., a Delaware corporation.

     "Average Life" means, as of the date of determination, with respect to any
Indebtedness for borrowed money or Preferred Stock, the quotient obtained by
dividing:

     (1)  the sum of the products of the number of years from the date of
          determination to the dates of each successive scheduled principal or
          liquidation value payments of such Indebtedness or Preferred Stock,
          respectively, and the amount of such principal or liquidation value
          payments by

     (2)  the sum of all such principal or liquidation value payments.

     "Bank Indebtedness" means any and all amounts payable under or in respect
of the Credit Agreement and any Refinancing Indebtedness with respect to the
Credit Agreement, as amended from time to time, including principal, premium, if
any, interest, including interest accruing on or after the filing of any
petition in bankruptcy or for reorganization relating to us whether or not a
claim for post-filing interest is allowed in such proceedings, fees, charges,
expenses, reimbursement obligations, guarantees and all other amounts payable
under or in respect of such Credit Agreement.

     "board" of any Person means the board of directors, management committee or
other governing body of such Person.

     "BTA" means a Basic Trading Area, as defined in 47 C.F.R. (S)24.202.

     "Business Day" means any date which is not a Legal Holiday.

     "C-Block License" means any License in the C block as set forth in parts 1
and 24 of Title 47 of the Code of Federal Regulations.

     "Capital Lease Obligations" of any Person means the obligations to pay rent
or other amounts under a lease of, or other Indebtedness arrangements conveying
the right to use, real or personal property of such Person which are required to
be classified and accounted for as a capital lease or liability on the face of a
balance sheet of such Person in accordance with GAAP. The

                                      A-10
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

amount of such obligations shall be the capitalized amount of such obligations
in accordance with GAAP, and the Stated Maturity of such obligations shall be
the date of the last payment of rent or any other amount due under such lease
prior to the first date upon which such lease may be terminated by the lessee
without payment of a penalty.

     "Capital Stock" of any Person means any and all shares, interests, rights
to purchase, warrants options, participations or other equivalents of or
interests in, however, designated, of corporate stock or other equity
participations, including partnership interests, whether general or limited, of
such Person.

     "Cash Equity Investors" means CB Capital Investors, L.P., Equity-Linked
Investors-II, Private Equity Investors III, L.P., Hoak Communications Partners,
L.P., HCP Capital Fund, L.P., Whitney Equity Partners, L.P., J. H. Whitney III,
L.P., Whitney Strategic Partners III, L.P., Entergy Technology Holding Company,
Media/Communications Partners III Limited Partnership, Media/Communications
Investors Limited Partnership, One Liberty Fund III, L.P., One Liberty Fund IV,
L.P., Toronto Dominion Investments, Inc., Northwood Ventures LLC, Northwood
Capital Partners LLC, Gerald Vento, Thomas Sullivan and Gilde International B.V.

     "Cash Equivalents" means:

     (1)  direct obligations of, or obligations the principal of and interest on
          which are unconditionally guaranteed by, the United States of America
          (or by any agency to the extent such obligations are backed by the
          full faith and credit of the United States of America), in each case
          maturing within one year from the date of such acquisition;

     (2)  investments in commercial paper maturing within 365 days from the date
          of such acquisition and having, at such date of acquisition, the
          highest credit rating obtainable from Standard & Poor's Corporation or
          from Moody's Investors Service;

     (3)  investments in certificates of deposit, banker's acceptance and time
          deposits maturing within 365 days from the date of such acquisition
          issued or guaranteed by or placed with, and money market deposit
          accounts issued or offered by, any domestic office of any commercial
          bank organized under the laws of the United States of America or any
          of its States which has a combined capital and surplus and undivided
          profits of not less than $500,000,000;

     (4)  fully collateralized repurchase agreements with a term of not more
          than 30 days for securities described in clause (1) above and entered
          into with a financial institution satisfying the criteria described in
          clause (3) above; and

     (5)  money market funds substantially all of whose assets comprise
          securities of the type described in clauses (1) through (3) above.

     "Code" means the Internal Revenue Code of 1986, as amended.

     "Common Stock" of any Person means Capital Stock of such Person that does
not rank prior, as to the payment of dividends or as to the distribution of
assets upon any voluntary or involuntary liquidation, dissolution or winding up
of such Person, to shares of Capital Stock of any other class of such Person.

     "Communications Act" means the Communications Act of 1934, and any similar
or successor Federal statute, and the rules and regulations and published
policies of the FCC thereunder, all as amended and as the same may be in effect
from time to time.

     "Consolidated Cash Flow" of any Person means, for any period, the
Consolidated Net Income of such Person for such period:

     (1)  increased, to the extent Consolidated Net Income for such period has
          been reduced thereby, by the sum of, without duplication"

          (A)  Consolidated Interest Expense of such Person for such period;
               plus

          (B)  Consolidated Income Tax Expense of such Person for such period;
               plus

          (C)  the consolidated depreciation and amortization expense of such
               Person and its Restricted Subsidiaries for such period; plus

                                      A-11
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

          (D)  any other non-cash charges of such Person and its Restricted
               Subsidiaries for such period except for any non-cash charges that
               represent accruals of, or reserves for, cash disbursements to be
               made in any future accounting period; and

     (2)  decreased, to the extent Consolidated Net Income for such period has
          been increased thereby, by any non-cash gains from Asset Dispositions.

     "Consolidated Income Tax Expense" of any Person means, for any period, the
consolidated provision for income taxes of such Person and its Restricted
Subsidiaries for such period calculated on a consolidated basis in accordance
with GAAP.

     "Consolidated Interest Expense" for any Person means, for any period,
without duplication:

     (1)  the consolidated interest expense included in a consolidated income
          statement, without deduction of interest or finance charge income, of
          such Person and its Restricted Subsidiaries for such period calculated
          on a consolidated basis in accordance with GAAP, including, without
          limitation, (a) any amortization of debt discount, (b) the net costs
          under Hedging Agreements, (c) all capitalized interest, (d) the
          interest portion of any deferred payment obligation and (e) all
          amortization of any premiums, fees and expenses payable in connection
          with the Incurrence of any Indebtedness; plus

     (2)  the interest component of Capital Lease Obligations paid, accrued
          and/or scheduled to be paid or accrued, by such Person and its
          Restricted Subsidiaries during such period as determined on a
          consolidated basis in accordance with GAAP.

     "Consolidated Net Income" of any Person means for any period the
consolidated net income (or loss) of such Person and its Restricted Subsidiaries
for such period determined on a consolidated basis in accordance with GAAP;
provided, however, that there shall be excluded therefrom:

     (1)  the net income or loss of any Person acquired by such Person or a
          Restricted Subsidiary of such Person in a pooling-of-interests
          transaction for any period prior to the date of such transaction;

     (2)  the net income but not loss of any Restricted Subsidiary of such
          Person which is subject to restrictions which prevent or limit the
          payment of dividends or the making of distributions to such Person to
          the extent of such restrictions, regardless of any waiver;

     (3)  the net income of any Person that is not a Restricted Subsidiary of
          such Person, except to the extent of the amount of dividends or other
          distributions representing such Person's proportionate share of such
          other Person's net income for such period actually paid in cash to
          such Person by such other Person during such period;

     (4)  gains or losses, other than for purposes of calculating Consolidated
          Net Income under clause (c) the first paragraph under "--Certain
          Covenants--Limitation on Restricted Payments," on Asset Dispositions
          by such Person or its Restricted Subsidiaries;

     (5)  all extraordinary gains, but not, other than for purposes of
          calculating Consolidated Net Income under clause (c) of the first
          paragraph under "--Certain Covenants--Limitation on Restricted
          Payments," losses, determined in accordance with GAAP; and

     (6)  in the case of a successor to such Person by consolidation or merger
          or as a transferee of such Person's assets, any earnings or losses of
          the successor corporation prior to such consolidation, merger or
          transfer of assets.

     "Credit Agreement" means the Credit Agreement dated as of July 17, 1998, as
amended, waived or otherwise modified from time to time, among the Company, the
financial institutions named in the Credit Agreement as lenders, The Chase
Manhattan Bank, as Administrative Agent and Issuing Bank, TD Securities (USA)
Inc., as Syndication Agent, and Bankers Trust Company, as Documentation Agent,
except to the extent that any such amendment, waiver or other modification to
the Credit Agreement would be prohibited by the terms of the Indenture, unless
otherwise agreed to by the holders of at least a majority in aggregate principal
amount at maturity of the Notes at the time outstanding.

     "Default" means any event that is, or after notice or lapse of time or both
would become, an Event of Default.

     "Designated Senior Indebtedness of us" means:

                                      A-12
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

     (1)  so long as outstanding, Bank Indebtedness; and

     (2)  so long as outstanding, any other Senior Indebtedness which has at the
          time of initial issuance an aggregate outstanding principal amount in
          excess of $25.0 million and which has been so designated as Designated
          Senior Indebtedness by our Board at the time of its initial issuance
          in a resolution delivered to the Trustee. "Designated Senior
          Indebtedness" of our subsidiary guarantors has a correlative meaning.

     "Designation" has the meaning set forth under "--Certain Covenants--
Limitation on Designations of Unrestricted Subsidiaries."

     "Designation Amount" has the meaning set forth under "--Certain Covenants--
Limitation on Designations of Unrestricted Subsidiaries."

     "Digital Acquisition" means our purchase by us from Digital PCS of 10 MHz
of F-Block Licenses for the Baton Rouge, Houma, Hammond and Lafayette, Louisiana
BTAs together with related assets.

     "Digital PCS" means Digital PCS, L.L.C.

     "Disqualified Stock" of any Person means any Capital Stock of such Person
which, by its terms, or by the terms of any security into which it is
convertible or for which it is exchangeable, or upon the happening of any event,
matures or is mandatorily redeemable, under a sinking fund obligation or
otherwise, or is redeemable at the option of the holder thereof, in whole or in
part, on or prior to the first anniversary of the Stated Maturity of the Notes;
provided, however, that any Capital Stock that would not constitute Disqualified
Stock but for such provisions giving such holders the right to require such
Person to repurchase or redeem such Capital Stock upon the occurrence of an
"asset sale" or "change of control" occurring prior to the first anniversary of
the Stated Maturity of the Notes shall not constitute Disqualified Stock if the
"asset sale" or "change of control" provisions applicable to such Capital Stock
are no more favorable to the holders of such Capital Stock than the provisions
of the covenant described under "Change of Control."

     "Equipment Subsidiary" means TeleCorp Equipment Leasing L.P. and/or any
other of our Wholly Owned Subsidiaries designated as an Equipment Subsidiary
under the Credit Agreement.

     "Equity Offering" means any public or private sale of Qualified Stock that
we make on a primary basis by the Company, including through the issuance or
sale of Qualified Stock to one or more Strategic Equity Investors.

     "Exchange Act" means the Securities Exchange Act of 1934, as amended, and
the rules and regulations promulgated by the SEC thereunder.

     "Excluded Cash Proceeds" means the first $128 million of net cash proceeds
received by us subsequent to the date of the Indenture from capital
contributions in respect of our Qualified Stock or from the issue or sale, other
than to a Restricted Subsidiary, of Qualified Stock.

     "F-Block License" means any License in the F block as set forth in parts 1
and 24 of Title 47 of the Code of Federal Regulations.

     "Fair Market Value" means, with respect to any asset or property, the price
that could be negotiated in an arm's-length free market transaction, for cash,
between a willing seller and a willing buyer, neither of which is under pressure
or compulsion to complete the transaction. Unless otherwise specified in the
Indenture, Fair Market Value shall be determined by our Board acting in good
faith.

     "FCC" means the Federal Communications Commission, or any other similar or
successor agency of the Federal government administering the Communications Act.

     "FCC Debt" means Indebtedness owed to the United States Treasury Department
or the FCC that is incurred in connection with the acquisition of a License.

     "GAAP" means generally accepted accounting principles, consistently
applied, as in effect from time to time in the United States of America, as set
forth in the opinions and pronouncements of the Accounting Principles Board of
the American Institute of Certified Public Accountants and statements and
pronouncements of the Financial Accounting Standards Board or in such other
statements by such other entity as is approved by a significant segment of the
accounting profession in the United States.

                                      A-13
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

     "Hedging Agreement" means any interest rate, currency or commodity swap
agreement, interest rate, currency or commodity future agreement, interest rate
cap or collar agreement, interest rate, currency or commodity hedge agreement
and any put, call or other agreement designed to protect against fluctuations in
interest rates, currency exchange rates or commodity prices.

     "Holder" or "Noteholder" means the Person in whose name a Note is
registered on the registrar's books.

     "Incur" means, with respect to any Indebtedness or other obligation of any
Person, to create, issue, incur, including by conversion, exchange or otherwise,
assume, guarantee or otherwise become liable in respect of such Indebtedness or
other obligation or the recording, as required under GAAP or otherwise, of any
such Indebtedness or other obligation on the balance sheet of such Person, and
"Incurrence," "Incurred" and "Incurring" shall have meanings correlative to the
foregoing. Indebtedness of any Person or any of its Restricted Subsidiaries
existing at the time such Person becomes a Restricted Subsidiary, or is merged
into, or consolidates with, us or any Restricted Subsidiary, whether or not such
Indebtedness was Incurred in connection with, or in contemplation of, such
Person becoming a Restricted Subsidiary, or being merged into, or consolidated
with, us or any Restricted Subsidiary, shall be deemed Incurred at the time any
such Person becomes a Restricted Subsidiary or merges into, or consolidates
with, us or any Restricted Subsidiary.

     "Indebtedness" means without duplication, with respect to any Person,
whether recourse is to all or a portion of the assets of such Person and whether
or not contingent:

     (1)  every obligation of such Person for money borrowed;

     (2)  every obligation of such Person evidenced by bonds, debentures, notes
          or other similar instruments, including obligations Incurred in
          connection with the acquisition of property, assets or businesses;

     (3)  every reimbursement obligation of such Person with respect to letters
          of credit, bankers' acceptances or similar facilities issued for the
          account of such Person;

     (4)  every obligation of such Person issued or assumed as the deferred
          purchase price of property or services, but excluding trade accounts
          payable or accrued liabilities arising in the ordinary course of
          business which are not overdue or which are being contested in good
          faith;

     (5)  every Capital Lease Obligation of such Person;

     (6)  every net obligation under Hedging Agreements or similar agreements of
          such Person; and

     (7)  every obligation of the type referred to in clauses (1) through (6) of
          another Person and all dividends of another Person the payment of
          which, in either case, such Person has guaranteed or is responsible or
          liable for, directly or indirectly, as obligor, guarantor or
          otherwise.

Indebtedness shall:

     (1)  include the liquidation preference and any mandatory redemption
          payment obligations in respect of any of our Disqualified Stock and
          any Restricted Subsidiary and any Preferred Stock of any of our
          Subsidiaries;

     (2)  never be calculated taking into account any cash and Cash Equivalents
          held by such Persons;

     (3)  not include obligations arising from our agreements or agreement of a
          Restricted Subsidiary to provide for indemnification, adjustment of
          purchase price, earn-out or other similar obligations, in each case,
          Incurred or assumed in connection with the disposition of any business
          or assets of a Restricted Subsidiary.

The amount of any Indebtedness outstanding as of any date shall be:

     (1)  the accreted value of such indebtedness, in the case of any
          Indebtedness issued with original issue discount;

     (2)  the principal amount of such indebtedness, in the case of any
          Indebtedness other than Indebtedness issued with original issue
          discount; and

     (3)  the greater of the maximum repurchase or redemption price or
          liquidation preference of such indebtedness, in the case of any
          Disqualified Stock or Preferred Stock.

                                      A-14
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

"Ineligible Subsidiary" means:

     (1)  any Special Purpose Subsidiary;

     (2)  any of our subsidiary guarantors;

     (3)  any of our Subsidiaries that, directly or indirectly, own any Capital
          Stock or Indebtedness of, or own or hold any Lien on any property of,
          us or any of our other Subsidiaries that is not a Subsidiary of the
          Subsidiary to be so designated; and

     (4)  any of our Subsidiaries that, directly or indirectly, own any Capital
          Stock or Indebtedness of, or own or hold any Lien on any property of,
          any other Subsidiaries that is not eligible to be designated as an
          Unrestricted Subsidiary.

     "initial purchasers" means Chase Securities Inc., BT Alex. Brown
Incorporated and Lehman Brothers Inc.

     "Investment" in any Person means any direct or indirect loan, advance,
guarantee or other extension of credit or capital contribution to, by means of
transfers of cash or other property to others or payments for property or
services for the account or use of others or otherwise, or purchase or
acquisition of Capital Stock, bonds, notes, debentures or other securities or
evidence of Indebtedness issued by, any other Person.

     "Legal Holiday" means a Saturday, Sunday or other day on which banking
institutions in the State of New York are authorized or required by law to
close.

     "License" means any broadband Personal Communications Services license
issued by the FCC in connection with the operation of a System.

     "License Subsidiary" means TeleCorp PCS, L.L.C. and THC and/or any of our
other Wholly Owned Restricted Subsidiaries designated as a License Subsidiary
under the Credit Agreement.

     "Lien" means, with respect to any property or assets, any mortgage or deed
of trust, pledge, hypothecation, assignment, security interest, lien, charge,
easement other than any easement not materially impairing usefulness or
marketability, encumbrance, preference, priority or other security agreement
with respect to such property or assets, including, without limitation, any
conditional sale or other title retention agreement having substantially the
same economic effect as any of the foregoing.

     "Lucent" means Lucent Technologies Inc., a Delaware corporation.

     "Lucent Note Purchase Agreement" means the Note Purchase Agreement dated as
of May 11, 1998, between us and Lucent, as amended as of the date of the
Indenture.

     "Management Stockholders" means Gerald Vento and Thomas Sullivan.

     "Marketing Affiliate" means any Person which engages in no activity other
than the registration, holding, maintenance or protection of trademarks and such
related licensing.

     "MTA" means a Major Trading Area, as defined in 47 C.F.R. (S)24.202.

     "Net Available Proceeds" from any Asset Disposition by any Person means
cash or readily marketable Cash Equivalents received, including by way of sale
or discounting of a note, installment receivable or other receivable, but
excluding any other consideration received in the form of assumption by the
acquiror of Indebtedness or other obligations relating to such properties or
assets or received in any other non-cash form, from such Asset Disposition by
such Person, including any cash received by way of deferred payment or upon the
monetization or other disposition of any non-cash consideration, including notes
or other securities received in connection with such Asset Disposition, net of:

     (1)  all legal, title and recording tax expenses, commissions and other
          fees and expenses incurred and all federal, state, foreign and local
          taxes required to be accrued as a liability as a consequence of such
          Asset Disposition;

     (2)  all payments made by such Person or any of its Restricted Subsidiaries
          on any Indebtedness which is secured by such assets in accordance with
          the terms of any Lien upon or with respect to such assets or which
          must, by the terms of such

                                      A-15
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

          Lien, or in order to obtain a necessary consent to such Asset
          Disposition or by applicable law, be repaid out of the proceeds from
          such Asset Disposition;

     (3)  all payments made with respect to liabilities associated with the
          assets which are the subject of the Asset Disposition, including,
          without limitation, trade payables and other accrued liabilities;

     (4)  appropriate amounts to be provided by such Person or any Restricted
          Subsidiary, as the case may be, as a reserve in accordance with GAAP
          against any liabilities associated with such assets and retained by
          such Person or any Restricted Subsidiary, as the case may be, after
          such Asset Disposition, including, without limitation, liabilities
          under any indemnification obligations and severance and other employee
          termination costs associated with such Asset Disposition, until such
          time as such amounts are no longer reserved or such reserve is no
          longer necessary at which time any remaining amounts will become Net
          Available Proceeds to be allocated in accordance with the provisions
          of clause (3) of the covenant described under "--Certain Covenants--
          Limitation on Certain Asset Dispositions"; and

     (5)  all distributions and other payments made to minority interest holders
          in Restricted Subsidiaries of such Person or joint ventures as a
          result of such Asset Disposition.

"Net Investment" means the excess of:

     (1)  the aggregate amount of all Investments made in any Unrestricted
          Subsidiary or joint venture by us or any Restricted Subsidiary on or
          after the date of the Indenture, in the case of an Investment made
          other than in cash, the amount shall be the Fair Market Value of such
          Investment as determined in good faith by our Board or the board of
          such Restricted Subsidiary; over

     (2)  the aggregate amount returned in cash on or with respect to such
          Investments whether through interest payments, principal payments,
          dividends or other distributions or payments; provided, however, that
          such payments or distributions shall not be, and have not been,
          included in clause (c) of the first paragraph described under "--
          Certain Covenants--Limitation on Restricted Payments;" provided
          further that, with respect to all Investments made in any Unrestricted
          Subsidiary or joint venture, the amounts referred to in clause (1)
          above with respect to such Investments shall not exceed the aggregate
          amount of all such Investments made in such Unrestricted Subsidiary or
          joint venture.

     "Note" or "Notes" means any Note or Note issued under the Indenture.

     "Noteholder" or "Holder" means the Person in whose name a Note is
registered on the registrar's books.

     "Offer to Purchase" means a written offer (the "Offer") sent by us by first
class mail, postage prepaid, to each holder of the Notes at such holder's
address appearing in the register for the Notes on the date of the Offer
offering to purchase up to (a) the Accreted Value of Notes, if such Offer is on
or prior to April 15, 2004, or (b) the principal amount at maturity of the
Notes, if such Offer is after April 15, 2004, specified in such Offer at the
purchase price specified in such Offer as determined under the Indenture. Unless
otherwise required by applicable law, the Offer shall specify an expiration date
(the "Expiration Date") of the Offer to Purchase which shall be not less than 30
days nor more than 60 days after the date of such Offer and a settlement date
(the "Purchase Date") for purchase of the Notes within five Business Days after
the Expiration Date.  We shall notify the Trustee at least 15 Business Days, or
such shorter period as is acceptable to the Trustee, prior to the mailing of the
Offer of our obligation to make an Offer to Purchase, and the Offer shall be
mailed by us or, at our request, by the Trustee in our name and at our expense.
The Offer shall contain all the information required by applicable law to be
included in such Offer.  The Offer shall contain all instructions and materials
necessary to enable holders of the Notes to tender their Notes under the Offer
to Purchase.  The Offer shall also state:

     (1)  the provision of the Indenture under which we make the Offer to
          Purchase;

     (2)  the Expiration Date and the Purchase Date;

     (3)  the aggregate principal amount at maturity of the Old Notes offered
          which we will purchase in the Offer to Purchase, including, if less
          than 100%, the manner by which such amount has been determined under a
          specified provision of the Indenture requiring the Offer to Purchase
          (the "Purchase Amount");

     (4)  the purchase price that we will pay for each $1,000 aggregate
          principal amount at maturity of Notes accepted for payment, as
          specified under the Indenture (the "Purchase Price");

                                      A-16
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

     (5)  that such holder may tender all or any portion of the Notes registered
          in the name of such holder and that any portion of a Note tendered
          must be tendered in an integral multiple of $1,000 principal amount at
          maturity;

     (6)  the place or places where the Notes are to be surrendered for tender
          in the Offer to Purchase;

     (7)  that interest on any Note not tendered or tendered but which we do not
          purchase in the Offer to Purchase will continue to accrue;

     (8)  that on the Purchase Date the Purchase Price will become due and
          payable upon each Note being accepted for payment in the Offer to
          Purchase and that interest on such note shall cease to accrue on and
          after the Purchase Date;

     (9)  that each holder electing to tender all or any portion of a Note under
          the Offer to Purchase will be required to surrender such Note at the
          place or places specified in the Offer prior to the close of business
          on the Expiration Date, such Note being, if we or the Trustee so
          require, duly endorsed by, or accompanied by a written instrument of
          transfer in form satisfactory to us and the Trustee duly executed by,
          the holder of such Note or such holder's attorney duly authorized in
          writing;

     (10) that holders will be entitled to withdraw all or any portion of Notes
          tendered if we or our paying agent receive, not later than the close
          of business on the fifth Business Day next preceding the Expiration
          Date, a telegram, telex, facsimile transmission or letter setting
          forth the name of the holder, the principal amount at maturity of the
          Note the holder tendered, the certificate number of the Note the
          holder tendered and a statement that such holder is withdrawing all or
          a portion of such holder's tender;

     (11) that (a) if Notes in an aggregate principal amount at maturity less
          than or equal to the Purchase Amount are duly tendered and not
          withdrawn in the Offer to Purchase, we shall purchase all such Notes
          and (b) if Notes in an aggregate principal amount at maturity in
          excess of the Purchase Amount are tendered and not withdrawn in the
          Offer to Purchase, we shall purchase Notes having an aggregate
          principal amount at maturity equal to the Purchase Amount on a pro
          rata basis with such adjustments as may be deemed appropriate so that
          only Notes in denominations of $1,000 or integral multiples of $1,000
          shall be purchased; and

     (12) that in the case of any holder whose Note is purchased only in part,
          we shall execute and the Trustee shall authenticate and deliver to the
          holder of such Note without service charge, a new Note or Notes, of
          any authorized denomination as requested by such holder, in an
          aggregate principal amount at maturity equal to and in exchange for
          the unpurchased portion of the Note so tendered.

An Offer to Purchase shall be governed by and effected in accordance with the
provisions above pertaining to any Offer.

     "Officer" means the Chief Executive Officer, the Executive Vice President,
the Chief Financial Officer, the Chief Operating Officer, the President, any
Vice President, the Treasurer or any Secretary of us or any of our Subsidiaries,
as the case may be.

     "Officers' Certificate" means a certificate signed by two Officers.

     "Opinion of Counsel" means a written opinion from legal counsel who is
acceptable to the Trustee. The counsel may be an employee of or counsel to us or
the Trustee.

     "Permitted Asset Swap" means any exchange of assets by us or a Restricted
Subsidiary where we and/or our Restricted Subsidiaries receive consideration at
least 75% of which consists of (1) cash, (2) assets that are used or useful in a
Permitted Business or (3) any combination of such cash and such assets.

     "Permitted Business" means:

     (1)  the delivery or distribution of telecommunications, voice, data or
          video services;

     (2)  any business or activity reasonably related or ancillary to,
          including, without limitation, any business conducted by us or any
          Restricted Subsidiary on the date of the Indenture and the
          acquisition, holding or exploitation of any license relating to the
          delivery of the services described in clause (1) above; or

     (3)  any other business or activity in which we and the Restricted
          Subsidiaries are expressly contemplated to be engaged under the
          provisions of our certificate of incorporation and by-laws in effect
          on the date of the Indenture.

                                      A-17
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

     "Permitted Holder" means:

     (1)  each of AT&T Wireless, TWR Cellular, the Cash Equity Investors, the
          Management Stockholders, Digital PCS, Wireless 2000 and any of their
          respective Affiliates and the respective successors by merger,
          consolidation, transfer or otherwise to all or substantially all of
          the respective businesses and assets of any of the foregoing; and

     (2)  any "person" or "group" as such terms are used in Sections 13(d) and
          14(d) of the Exchange Act controlled by one or more persons identified
          in clause (1) above.

     "Permitted Investments" means:

     (1)  Investments in Cash Equivalents;

     (2)  Investments representing Capital Stock or obligations issued to us or
          any Restricted Subsidiary in the course of the good faith settlement
          of claims against any other Person or by reason of a composition or
          readjustment of debt or a reorganization of any debtor of us or any
          Restricted Subsidiary;

     (3)  deposits including interest-bearing deposits, maintained in the
          ordinary course of business in banks;

     (4)  any Investment in any Person; provided, however, that, after giving
          effect to such Investment, such Person is or becomes a Restricted
          Subsidiary or such Person is merged, consolidated or amalgamated with
          or into, or transfers or conveys substantially all of its assets to,
          or is liquidated into, us or a Restricted Subsidiary;

     (5)  trade receivables and prepaid expenses, in each case arising in the
          ordinary course of business; provided, however, that such receivables
          and prepaid expenses would be recorded as assets of such Person in
          accordance with GAAP;

     (6)  endorsements for collection or deposit in the ordinary course of
          business by such Person of bank drafts and similar negotiable
          instruments of such other Person received as payment for ordinary
          course of business trade receivables;

     (7)  any interest rate agreements with an unaffiliated Person otherwise
          permitted by clause (5) or (6) under "--Certain Covenants--Limitation
          on Incurrence of Indebtedness;"

     (8)  Investments received as consideration for an Asset Disposition in
          compliance with the provisions of the Indenture described under "--
          Certain Covenants--Limitation on Certain Asset Dispositions;"

     (9)  loans or advances to employees of us or any Restricted Subsidiary in
          the ordinary course of business in an aggregate amount not to exceed
          $5.0 million in the aggregate at any one time outstanding;

     (10) any Investment acquired by us or any of our Restricted Subsidiaries as
          a result of a foreclosure by us or any of our Restricted Subsidiaries
          or in connection with the settlement of any outstanding Indebtedness
          or trade payable;

     (11) loans and advances to officers, directors and employees for business-
          related travel expense, moving expense and other similar expenses,
          each incurred in the ordinary course of business; and

     (12) other Investments with each such Investment being valued as of the
          date made and without giving effect to subsequent changes in value in
          an aggregate amount not to exceed $7.5 million at any one time
          outstanding.

     "Person" means any individual, corporation, limited or general partnership,
joint venture, association, joint stock company, trust, unincorporated
organization or government or any agency or political subdivision.

     "Plan of Liquidation" means, with respect to any Person, a plan including
by operation of law that provides for, contemplates, or the effectuation of
which is preceded or accompanied by whether or not substantially
contemporaneously:

     (1)  the sale, lease, conveyance or other disposition of all or
          substantially all of the assets of such Person; and

     (2)  the distribution of all or substantially all of the proceeds of such
          sale, lease, conveyance or other disposition and all or substantially
          all of the remaining assets of such Person to holders of Capital Stock
          of such Person.

                                      A-18
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

     "Preferred Stock," as applied to the Capital Stock of any Person, means
Capital Stock of such Person of any class or classes, however designated, that
ranks prior, as to the payment of dividends or as to the distribution of assets
upon any voluntary or involuntary liquidation, dissolution or winding up of such
Person, to shares of Capital Stock of any other class of such Person.

     "principal" of a Note means the principal of the Note plus the premium, if
any, payable on the Note which is due or overdue or is to become due at the
relevant time.

     "Public Sale" means any underwritten public offering, made on a primary
basis under a registration statement filed with, and declared effective by, the
SEC in accordance with the Securities Act.

     "Puerto Rico Acquisition" means the merger of Puerto Rico Acquisition Corp.
into us and the purchase by us from AT&T Wireless of 20 MHz of A-Block Licenses
covering the San Juan MTA together with related assets.

     "Qualified License" means, as of the date of determination, any License
covering or adjacent to any geographical area in respect of which we or any
Restricted Subsidiary owns, as of the Business Day immediately prior to such
date of determination, at least one other License covering a substantial portion
of such area.

     "Qualified Stock" means any of our Capital Stock other than Disqualified
Stock.

     "Real Property Subsidiary" means TeleCorp Realty L.L.C., Puerto Rico
Acquisition Corp. and/or any of our other Wholly Owned Subsidiaries that we
designate as a Real Property Subsidiary under the Credit Agreement.

     "Refinance" means refinance, renew, extend, replace or refund; and
"Refinancing" and "Refinanced" have correlative meanings.

     "Refinancing Indebtedness" means Indebtedness that is Incurred to refund,
refinance, replace, renew, repay or extend, including under any defeasance or
discharge mechanism, any of our Indebtedness or any Restricted Subsidiary
existing on the date of the Indenture or Incurred in compliance with the
Indenture, including our Indebtedness that Refinances Refinancing Indebtedness;
provided, however, that:

     (1)  the Refinancing Indebtedness has a Stated Maturity no earlier than the
          Stated Maturity of the Indebtedness being Refinanced;

     (2)  the Refinancing Indebtedness has an Average Life at the time such
          Refinancing Indebtedness is Incurred that is equal to or greater than
          the Average Life of the Indebtedness being refinanced;

     (3)  such Refinancing Indebtedness is Incurred in an aggregate principal
          amount, or if issued with original issue discount, an aggregate issue
          price, that is equal to or less than the aggregate principal amount,
          or if issued with original issue discount, the aggregate accreted
          value, then outstanding of the Indebtedness being Refinanced plus the
          amount of any premium required to be paid in connection with such
          Refinancing under the terms of the Indebtedness being Refinanced or
          the amount of any premium reasonably determined by the issuer of such
          Indebtedness as necessary to accomplish such Refinancing by means of a
          tender offer, exchange offer or privately negotiated repurchase, plus
          the expenses of such issuer reasonably incurred in connection with
          such Refinancing; and

     (4)  if the Indebtedness being Refinanced is pari passu with the Notes,
          such Refinancing Indebtedness is made pari passu with, or subordinate
          in right of payment to, the Notes, and, if the Indebtedness being
          Refinanced is subordinate in right of payment to the Notes, such
          Refinancing Indebtedness is subordinate in right of payment to the
          Notes on terms no less favorable to the holders of Notes than those
          contained in the Indebtedness being Refinanced;

provided further, however, that Refinancing Indebtedness shall not include :

     (A)  Indebtedness of a Restricted Subsidiary that Refinances our
          Indebtedness; or

     (B)  Our Indebtedness or Indebtedness of a Restricted Subsidiary that
          Refinances Indebtedness of an Unrestricted Subsidiary.

     "Restricted Subsidiary" means any of our Subsidiaries other than an
Unrestricted Subsidiary.

                                      A-19
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

     "Revocation" has the meaning set forth under "--Certain Covenants--
Limitation on Designations of Unrestricted Subsidiaries."

     "Sale/Leaseback Transaction" means an arrangement relating to property
owned on the date of the Indenture or acquired by us or a Restricted Subsidiary
after the date of the Indenture that involves our or a Restricted Subsidiary's
transferring of such property to a Person and our or such Restricted
Subsidiary's leasing it from such Person, other than leases between us and a
Wholly Owned Subsidiary or between Wholly Owned Subsidiaries.

     "Securities Act" means the Securities Act of 1933, as amended.

     "Securities Purchase Agreement" means the Securities Purchase Agreement
dated January 23, 1998, among AT&T Wireless, TWR Cellular, the stockholders of
THC, the Cash Equity Investors, the Management Stockholders and us, as the such
agreement may be amended from time to time in accordance with the provisions of
such agreement, so long as the terms of any such amendment are no less favorable
to the Noteholders than the terms of the Securities Purchase Agreement in effect
on the date of the Indenture.

     "Senior Subordinated Indebtedness" of us means the Notes and any of our
other Indebtedness that specifically provides that such Indebtedness is to rank
pari passu with the Notes in right of payment and is not subordinated by its
terms in right of payment to any Indebtedness or any other of our obligations
which is not Senior Indebtedness. "Senior Subordinated Indebtedness" of our
subsidiary guarantors has a correlative meaning.

     "Series A Notes" means our Series A Notes purchased by Lucent under the
Lucent Note Purchase Agreement.

     "Significant Subsidiary" means any Restricted Subsidiary that would be our
"Significant Subsidiary" within the meaning of Rule 1-02 under Regulation S-X
promulgated by the SEC.

     "Special Purpose Subsidiary" means any Equipment Subsidiary, License
Subsidiary or Real Property Subsidiary.

     "Stated Maturity" means, with respect to any security, the date specified
in such security as the fixed date on which the final payment of principal of
such security is due and payable, including under any mandatory redemption
provision, but excluding any provision providing for the repurchase of such
security at the option of the holder of such security upon the happening of any
contingency beyond the control of the issuer unless such contingency has
occurred.

     "Stockholders' Agreement" means the Stockholders' Agreement dated as of
July 17, 1998, among AT&T Wireless, TWR Cellular, the Cash Equity Investors, the
Management Stockholders and us, as such agreement may be amended from time to
time in accordance with the provisions of such agreement, so long as the terms
of any such amendment are no less favorable to the Noteholders than the terms of
the Stockholders' Agreement in effect on the date of the Indenture.

     "Strategic Equity Investor" means any of the Cash Equity Investors, any
such Affiliate, any other Person engaged in a Permitted Business whose Total
Equity Market Capitalization exceeds $500 million or any other Person who has at
least $100 million total funds under management and who has issued an
irrevocable, unconditional commitment to purchase our Qualified Stock for an
aggregate purchase price that does not exceed 20% of the value of the funds
under management by such Person.

     "Subordinated Indebtedness" means any of our Indebtedness or any
Indebtedness of any of our subsidiary guarantors whether outstanding on the date
of the Indenture or Incurred after such date, which is by its terms expressly
subordinate or junior in right of payment to the Notes or the Subsidiary
Guarantee of such subsidiary guarantor, as the case may be.

     "Subsidiary" of any Person means:

     (1)  a corporation more than 50% of the outstanding Voting Stock of which
          is owned, directly or indirectly, by such Person or by one or more
          other Subsidiaries of such Person or by such Person and one or more
          other Subsidiaries of such Person; or

     (2)  any other Person, other than a corporation, in which such Person, or
          one or more other Subsidiaries of such Person or such Person and one
          or more other Subsidiaries of such Person, directly or indirectly, has
          at least a majority ownership and voting power relating to the
          policies, management and affairs of such Person.

                                      A-20
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

     "Subsidiary Guarantee" means each guarantee of the obligations with respect
to the Notes issued by any of our Subsidiaries under the terms of the Indenture,
each such Subsidiary Guarantee having subordination provisions equivalent to
those contained in the Indenture with respect to the Notes and being
substantially in the form prescribed in the Indenture.

     "System" means, as to any Person, assets constituting a radio
communications system authorized under the rules for wireless communications
services, including any license and the network, marketing, distribution, sales,
customer interface and operations and functions relating to such license, owned
and operated by such Person.

     "THC" means TeleCorp Holding Corp., Inc., a Delaware corporation and a
Wholly Owned Subsidiary.

     "Total Consolidated Indebtedness" means, at any date of determination, an
amount equal to:

     (1)  the accreted value of all Indebtedness, in the case of any
          Indebtedness issued with original issue discount; plus

     (2)  the principal amount of all Indebtedness, in the case of any other
          Indebtedness,

of us and our Restricted Subsidiaries outstanding as of the date of
determination; provided, however, that no amount owing by us or any of our
Restricted Subsidiaries in respect of any Series A Notes outstanding as of the
date of determination shall be included in the determination of Total
Consolidated Indebtedness.

  "Total Equity Market Capitalization" of any Person means, as of any day of
determination, the sum of (a) the product of (1) the aggregate number of
outstanding primary shares of common stock of such Person on such day, which
shall not include any options or warrants on, or securities convertible or
exchangeable into, shares of common stock of such Person, multiplied by (2) the
average closing price of such common stock listed on a national securities
exchange or the Nasdaq National Market System over the 20 consecutive Business
Days immediately preceding such day plus (b) the liquidation value of any
outstanding shares of preferred stock of such Person on such day.

     "Total Invested Capital" means, as of any date of determination, the sum
of, without duplication:

     (1)  the total amount of equity contributed to us as of the date of the
          Indenture, as set forth on our December 31, 1998 consolidated balance
          sheet; plus

     (2)  irrevocable, unconditional commitments from any Strategic Equity
          Investor to purchase our Capital Stock other than Disqualified Stock,
          within 36 months of the date of issuance of such commitment, but in
          any event not later than the Stated Maturity of the Notes; provided,
          however, that such commitments shall exclude commitments related to
          any Investment in any Person incorporated, formed or created for the
          purpose of acquiring one or more Qualified Licenses unless such Person
          shall become a Restricted Subsidiary; plus

     (3)  the aggregate net cash proceeds received by us from capital
          contributions or the issuance or sale of our Capital Stock, other than
          Disqualified Stock, but including Qualified Stock issued upon the
          conversion of convertible Indebtedness or upon the exercise of
          options, warrants or rights to purchase Qualified Stock, subsequent to
          the date of the Indenture, other than issuances or sales of Capital
          Stock to a Restricted Subsidiary and other than capital contributions
          from, or issuances or sales of Capital Stock to, any Strategic Equity
          Investor in connection with (a) any Investment in any Person
          incorporated, formed or created for the purpose of acquiring one or
          more Qualified Licenses and (b) any Investment in any Person engaged
          in a Permitted Business, unless, in either case, such Person shall
          become a Restricted Subsidiary; provided, however, such aggregate net
          cash proceeds shall exclude any amounts included as commitments to
          purchase Capital Stock in the preceding clause (2); plus

     (4)  the Fair Market Value of assets that are used or useful in a Permitted
          Business or of the Capital Stock of a Person engaged in a Permitted
          Business received by us as a capital contribution or in exchange for
          our Capital Stock, other than Disqualified Stock, subsequent to the
          date of the Indenture, other than (x) capital contributions from a
          Restricted Subsidiary or issuance or sales of our Capital Stock to a
          Restricted Subsidiary or (y) the proceeds from the sale of Qualified
          Stock to an employee stock ownership plan or other trust established
          by us or any of our subsidiaries; plus

     (5)  the aggregate net cash proceeds received by us or any Restricted
          Subsidiary from the sale, disposition or repayment of any Investment
          made after the date of the Indenture and constituting a Restricted
          Payment in an amount equal to the lesser of (a) the return of capital
          with respect to such Investment and (b) the initial amount of such
          Investment, in either case, less the cost of the disposition of such
          Investment; plus

                                      A-21
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

     (6)  an amount equal to the consolidated Net Investment of us and/or any of
          our Restricted Subsidiaries in any Subsidiary that has been designated
          as an Unrestricted Subsidiary after the date of the Indenture upon its
          redesignation as a Restricted Subsidiary in accordance with the
          covenant described under "--Certain Covenants--Limitation on
          Designations of Unrestricted Subsidiaries;" plus

     (7)  cash proceeds from the sale to Lucent of the Series A Notes, less
          payments made by us or any of our Subsidiaries with respect to Series
          A Notes, other than payments of additional Series A Notes; plus

     (8)  Total Consolidated Indebtedness; minus

     (9)  the aggregate amount of all Restricted Payments including any
          Designation Amount, but other than a Restricted Payment of the type
          referred to in clause (3)(b) of the third paragraph of the covenant
          described under "--Certain Covenants--Limitations on Restricted
          Payments," declared or made on or after the date of the Indenture.

     "TIA" means the Trust Indenture Act of 1939 (15 U.S.C. (S)(S)77aaa-77bbbb)
as in effect on the date of the Indenture.

     "Trustee" means the party named as such in the Indenture until a successor
replaces it and, after such replacement, means the successor.

     "Trust Officer" means the Chairman of the board of directors, the President
or any other officer or assistant officer of the Trustee assigned by the Trustee
to administer its corporate trust matters.

     "TWR Cellular" means TWR Cellular, Inc., a Delaware corporation, and an
Affiliate of AT&T Wireless.

     "Unrestricted Subsidiary" means (1) any of our Subsidiaries, other than an
Ineligible Subsidiary, designated after the date of the Indenture as such under,
and in compliance with, the covenant described under "--Certain Covenants--
Limitation on Designations of Unrestricted Subsidiaries" and (2) any Marketing
Affiliate.  Any such designation of any of our Subsidiaries may be revoked by a
resolution of our Board delivered to the Trustee certifying compliance with such
covenant, subject to the provisions of such covenant.

     "U.S. Government Obligations" means direct obligations, or certificates
representing an ownership interest in such obligations, of the United States of
America, including any agency or instrumentality of the United States of
America, for the payment of which the full faith and credit of the United States
of America is pledged and which are not callable or redeemable at the issuer's
option.

     "Vendor Credit Arrangement" means any Indebtedness, including, without
limitation, Indebtedness under any credit facility entered into with any vendor
or supplier or any financial institution acting on behalf of such vendor or
supplier; provided  that the net proceeds of such Indebtedness are used solely
for the purpose of financing the cost, including, without limitation, the cost
of design, development, site acquisition, construction, integration, handset
manufacture or acquisition or microwave relocation, of assets used or usable in
a Permitted Business, including, without limitation, through the acquisition of
Capital Stock of an entity engaged in a Permitted Business.

     "Voting Stock" of any Person means the Capital Stock of such Person which
ordinarily has voting power for the election of directors, or Persons performing
similar functions, of such Person, whether at all times or only so long as no
senior class of securities has such voting power by reason of any contingency.

     "Wholly Owned Subsidiary" means a Restricted Subsidiary, all of the
outstanding Capital Stock or other ownership interests of which, other than
directors' qualifying shares, shall at the time be owned by us and/or by one or
more Wholly Owned Subsidiaries.

     "Wireless 2000" means Wireless 2000, Inc.

     "Wireless 2000 Acquisition" means our purchase from Wireless 2000 of 15 MHz
of C-Block Licenses for the Monroe, Alexandria and Lake Charles, Louisiana BTAs.

                                      A-22
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

[The following provisions replace the provisions under the same headings in the
prospectus in the "Book-Entry; Delivery and Form" section.]

                         BOOK-ENTRY; DELIVERY AND FORM

     The Notes are represented by a permanent global certificate in definitive,
fully registered form (the "Global Note").  The Global Note is registered in the
name of a nominee of DTC.

Certain Book-Entry Procedures for the Global Notes

     The descriptions of the operations and procedures of DTC, Euroclear and
Cedel set forth below are provided solely as a matter of convenience. These
operations and procedures are solely within the control of the respective
settlement systems, and are subject to change by them from time to time. Neither
we nor any of the initial purchasers of the Notes takes any responsibility for
these operations or procedures, and investors are urged to contact the relevant
system or its participants directly to discuss these matters.

     DTC has advised us that it is (1) a limited purpose trust company organized
under the laws of the State of New York, (2) a "banking organization" within the
meaning of the New York Banking Law, (3) a member of the Federal Reserve System,
(4) a "clearing corporation" within the meaning of the Uniform Commercial Code,
as amended, and (5) a "clearing agency" registered under Section 17A of the
Exchange Act. DTC was created to hold securities for its participants
(collectively, the "Participants") and facilitates the clearance and settlement
of securities transactions between Participants through electronic book-entry
changes to the accounts of its Participants, thereby eliminating the need for
physical transfer and delivery of certificates. DTC's Participants include
securities brokers and dealers, including the initial purchasers, banks and
trust companies, clearing corporations and certain other organizations. Indirect
access to DTC's system is also available to other entities such as banks,
brokers, dealers and trust companies (collectively, the "Indirect Participants")
that clear through, or maintain a custodial relationship with a Participant,
either directly or indirectly. Investors who are not Participants may
beneficially own securities held by, or on behalf of DTC only through
Participants or Indirect Participants.

     We expect that under procedures established by DTC, (1) upon deposit of
each Global Note, DTC will credit the accounts of Participants designated by the
initial purchasers of the Notes in the original private offering with an
interest in the Global Note and (2) ownership of the Notes will be shown on, and
the transfer of ownership will be effected only through, records maintained by
DTC, with respect to the interests of Participants and the records of
Participants and the Indirect Participants (with respect to the interests of
persons other than Participants).

     The laws of some jurisdictions may require that certain purchasers of
securities take physical delivery of such securities in definitive form.
Accordingly, the ability to transfer interests in the Notes represented by a
Global Note to such persons may be limited. In addition, because DTC can act
only on behalf of its Participants, who in turn act on behalf of persons who
hold interests through Participants, the ability of a person having an interest
in the Notes represented by a Global Note to pledge or transfer such interest to
persons or entities that do not participate in DTC's system, or to otherwise
take actions in respect of such interest, may be affected by the lack of a
physical definitive security in respect of such interest.

     So long as DTC or its nominee is the registered owner of a Global Note, DTC
or such nominee, as the case may be, will be considered the sole owner or holder
of the Notes represented by the Global Note for all purposes under the
Indenture. Except as provided below, owners of beneficial interests in a Global
Note will not be entitled to have the Notes represented by such Global Note
registered in their names, will not receive or be entitled to receive physical
delivery of Certificated Notes and will not be considered the owners or holders
under the Indenture for any purpose, including with respect to the giving of any
direction, instruction or approval to the Trustee. Accordingly, each holder
owning a beneficial interest in a Global Note must rely on the procedures of DTC
and, if such holder is not a Participant or an Indirect Participant, on the
procedures of the Participant through which such holder owns its interest, to
exercise any rights of a holder of the Notes under the Indenture or such Global
Note. We understand that, under existing industry practice, if we request any
action of holders of the Notes, or a holder that is an owner of a beneficial
interest in a Global Note desires to take any action that DTC, as the holder of
such Global Note, is entitled to take, DTC would authorize the Participants to
take such action and the Participants would authorize holders owning through
such Participants to take such action or would otherwise act upon the
instruction of such holders. Neither we nor the Trustee will have any
responsibility or liability for any aspect of the records relating to, or
payments made on account of, the Notes by DTC, or for maintaining, supervising
or reviewing any records of DTC relating to such Notes.

     Payments with respect to the principal and interest, and premium, if any,
and liquidated damages, if any, on any Notes represented by a Global Note
registered in the name of DTC or its nominee on the applicable record date will
be payable by the Trustee to, or at the direction of, DTC or its nominee in its
capacity as the registered holder of the Global Note representing such

                                      A-23
<PAGE>

                                                        [ALTERNATIVE PROVISIONS]

Notes under the Indenture. Under the terms of the Indenture, we and the Trustee
will be permitted to treat the persons in whose names the Notes, including the
Global Notes, are registered as the owners of such Notes for the purpose of
receiving payment thereon and for any and all other purposes whatsoever.
Accordingly, neither we nor the Trustee have or will have any responsibility or
liability for the payment of such amounts to owners of beneficial interests in a
Global Note (including principal, premium, if any, liquidated damages, if any,
and interest). Payments by the Participants and the Indirect Participants to the
owners of beneficial interests in a Global Note will be governed by standing
instructions and customary industry practice, and will be the responsibility of
the Participants or the Indirect Participants and DTC.

     Transfers between Participants in DTC will be effected in accordance with
DTC's procedures and will be settled in same-day funds. Transfers between
participants in Euroclear or Cedel will be effected in the ordinary way in
accordance with their respective rules and operating procedures.

     Subject to compliance with the transfer restrictions applicable to the
Notes, cross-market transfers between the Participants in DTC, on the one hand,
and Euroclear or Cedel participants on the other hand, will be effected through
DTC in accordance with DTC's rules on behalf of Euroclear or Cedel, as the case
may be; however, such cross-market transactions will require delivery of
instructions to Euroclear or Cedel, as the case may be, by the counterparty in
such system in accordance with the rules and procedures, and within the
established deadlines (Brussels time), of such system. Euroclear or Cedel, as
the case may be, will, if the transaction meets its settlement requirements,
deliver instructions to its depositary to take action to effect final settlement
on its behalf, by delivering or receiving interests in the relevant Global Notes
in DTC and making or receiving payment in accordance with normal procedures for
same-day funds settlement applicable to DTC. Euroclear participants and Cedel
participants may not deliver instructions directly to the depositaries for
Euroclear or Cedel.

     Because of time zone differences, the securities account of a Euroclear or
Cedel participant purchasing an interest in a Global Note from a Participant in
DTC will be credited, and any such crediting will be reported to the relevant
Euroclear or Cedel participant, during the securities settlement processing day,
which must be a business day for Euroclear or Cedel, as the case may be,
immediately following the settlement date of DTC. Cash received by Euroclear or
Cedel as a result of sales of interests in a Global Note by or through a
Euroclear or Cedel participant to a Participant in DTC will be received with
value on the settlement date of DTC, but will be available in the relevant
Euroclear or Cedel cash account only as of the business day for Euroclear or
Cedel, as the case may be, following DTC's settlement date.

     Although DTC, Euroclear and Cedel have agreed to the foregoing procedures
to facilitate transfers of interests in the Global Notes among participants in
DTC, Euroclear and Cedel, they are under no obligation to perform or to continue
to perform such procedures, and such procedures may be discontinued at any time.
Neither we nor the Trustee will have any responsibility for the performance by
DTC, Euroclear or Cedel, or their respective participants or indirect
participants, of their respective obligations under the rules and procedures
governing their operations.

Certificated Notes

     If (1) we notify the Trustee in writing that DTC is no longer willing or
able to act as a depositary, or DTC ceases to be registered as a clearing agency
under the Exchange Act and a successor depositary is not appointed within 90
days of such notice or cessation, (2) we, at our option, notify the Trustee in
writing that it elects to cause the issuance of the Notes in definitive form
under the Indenture, or (3) upon the occurrence of certain other events as
provided in the Indenture, then, upon surrender by DTC of the Global Notes,
Certificated Notes will be issued to each person that DTC identifies as the
beneficial owner of the Notes represented by the Global Notes. Upon any such
issuance, the Trustee is required to register such Certificated Notes in the
name of such person or persons, or the nominee of any such person, and cause the
same to be delivered to such person.

     Neither we nor the Trustee shall be liable for any delay by DTC or any
Participant or Indirect Participant in identifying the beneficial owners of the
related Notes, and each such person may conclusively rely on, and shall be
protected in relying on, instructions from DTC for all purposes, including with
respect to the registration and delivery, and the respective principal amounts,
of the Notes to be issued.

                                      A-24
<PAGE>

                                                           [ALTERNATIVE SECTION]

                             PLAN OF DISTRIBUTION

          CSI may use this prospectus in connection with offers and sales of the
Notes in market-making transactions at negotiated prices relating to prevailing
market prices at the time of sale.  CSI may act as principal or agent in such
transaction.

          The Notes are new securities with no established trading market. We do
not intend to list the Notes on any securities exchange. Any trading that does
develop will occur on the over-the-counter market. CSI has advised us that it
intends to make a market in the Notes, but it has no obligation to do so. CSI
may discontinue any market-making at any time. We cannot assure you that a
liquid market will develop for the Notes, that you will be able to sell your
Notes at a particular time or that the prices that you receive when you sell
will be favorable. Future trading prices of the Notes will depend on many
factors, including our operating performance and financial condition, prevailing
interest rates and the market for similar securities.

          CSI acted as an initial purchaser in connection with the initial
private offering of the Notes, and received customary compensation in connection
with such offering. CSI and its affiliates perform various investment banking
and commercial banking services from time to time for us and our affiliates. The
Chase Manhattan Bank, an affiliate of CSI, is the agent bank and a lender under
our senior credit facilities. Mr. Michael R. Hannon, a member of our Board,
is a General Partner of Chase Capital Partners, an affiliate of CSI. In
addition, affiliates of Chase Capital Partners own a portion of our common
stock. For further information concerning these relationships, see "Securities
Ownership of Certain Beneficial Owners and Management."

          Although there are no agreements to do so, CSI, and others, may act as
a broker or dealer in connection with the sale of Notes contemplated by this
prospectus and may receive fees or commissions in connection with such sales.

          We have agreed to indemnify CSI against certain liabilities under the
Securities Act or to contribute to payments that CSI may have to make in respect
of such liabilities.

                                      A-25
<PAGE>

                                                           [ALTERNATIVE SECTION]

                             AVAILABLE INFORMATION

     We have filed with the SEC a registration statement on Form S-4 under the
Securities Act with respect to the Notes.  As permitted by the rules and
regulations of the SEC, this prospectus omits certain information, exhibits and
undertakings contained in the registration statement.  For further information
with respect to us and the Notes, you should review the registration statement,
including the exhibits and the financial statements to such registration
statement, notes and schedules filed as a part of the registration statement.
The registration statement and the exhibits and schedules to such registration
statement, as well as the periodic reports and other information filed with the
SEC, may be inspected and copied at the Public Reference Section of the SEC at
Room 1024, Judiciary Plaza, 450 Fifth Street, NW, Washington, DC  20549 and at
the regional offices of the SEC located at 7 World Trade Center, Suite 1300,
New York, New York 10048.  Copies of such materials may be obtained from the
Public Reference Section of the SEC, Room 1024, Judiciary Plaza, 450 Fifth
Street, NW, Washington DC  20549, and its public reference facilities in New
York, New York at the prescribed rates.  You may obtain information as to the
operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330.
The SEC maintains a Web site at http://www.sec.gov that contains periodic
reports, proxy and information statements and other information regarding
registrants that file documents electronically with the SEC.  Statements
contained in this prospectus as to the contents of any contract or other
document are not necessarily complete, and in each instance reference is made to
the copy of such contract or document filed as an exhibit to the registration
statement, each such statement being qualified in all respects by such
reference.  Under the indenture governing the Notes, we have agreed to file with
the SEC and provide to the holders of the Notes annual reports and the
information, documents and other reports which are specified in Section 13 and
15(d) of the Exchange Act.

                                      A-26
<PAGE>

                                                              [ALTERNATIVE PAGE]


WE HAVE NOT AUTHORIZED ANY DEALER, SALESPERSON OR OTHER PERSON TO GIVE ANY
INFORMATION OR REPRESENT ANYTHING NOT CONTAINED IN THIS PROSPECTUS. YOU MUST NOT
RELY ON ANY UNAUTHORIZED INFORMATION. THIS PROSPECTUS DOES NOT OFFER TO SELL OR
BUY ANY SECURITIES IN ANY JURISDICTION WHERE IT IS UNLAWFUL. THE INFORMATION IN
THIS PROSPECTUS IS CURRENT AS OF        , 1999.


                               TABLE OF CONTENTS
<TABLE>
<S>                                                                            <C>
Prospectus Summary.............................................................  1
Risk Factors...................................................................
Use of Proceeds................................................................
Capitalization.................................................................
Selected Historical and Pro Forma
 Consolidated Financial Information............................................
Management's Discussion and Analysis of Financial Condition and Results of
 Operations....................................................................
Business.......................................................................
Management.....................................................................
Securities Ownership of Certain Beneficial Owners and Management...............
Certain Relationships and Related Transactions.................................
Certain Indebtedness...........................................................
Description of Capital Stock...................................................
Description of the Notes.......................................................
Certain U.S. Federal Tax Considerations........................................
Book-Entry; Delivery and Form..................................................
Plan of Distribution...........................................................
Legal Matters..................................................................
Experts........................................................................
Available Information..........................................................
Glossary of Selected Terms.....................................................
Index to Financial Statements.................................................. F-1
</TABLE>


UNTIL             , 1999, ALL DEALERS THAT EFFECT TRANSACTIONS IN THESE
SECURITIES MAY BE REQUIRED TO DELIVER A PROSPECTUS IN CONNECTION THEREWITH. THIS
IS IN ADDITION TO THE OBLIGATION OF DEALERS TO DELIVER A PROSPECTUS. WHEN ACTING
AS UNDERWRITERS AND WITH RESPECT TO THEIR UNSOLD ALLOTMENTS OR SUBSCRIPTIONS.


                              TELECORP PCS, INC.



                                 $575,000,000



                     11 5/8% SENIOR SUBORDINATED DISCOUNT
                                NOTES DUE 2009



                            ______________________

                                  PROSPECTUS

                            ______________________


                                          , 1999

<PAGE>

               PART II    INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

  Section 145 of the Delaware General Corporation Law ("DGCL") provides that a
corporation may indemnify any person who was or is a party or is threatened to
be made a party to any threatened, pending or completed action, suit or
proceeding, whether civil, criminal, administrative, or investigative (other
than an action by or in the right of the corporation) by reason of the fact that
such person is or was a director, officer, employee or agent of the corporation,
or is or was serving at the request of the corporation as director, officer,
employee or agent of another corporation, partnership, joint venture, trust or
other enterprise, against expenses (including attorneys' fees), judgments, fines
and amounts paid in settlement actually and reasonably incurred by such person
in connection with such action, suit or proceeding if such person acted in good
faith and in a manner such person reasonably believed to be in or not opposed to
the best interests of the corporation, and, with respect to any criminal action
or proceeding, had no reasonable cause to believe such person's conduct was
unlawful.  Section 145 further provides that a corporation similarly may
indemnify any such person serving in any such capacity who was or is a party or
is threatened to be made a party to any threatened, pending or completed action
or suit by or in the right of the corporation to procure a judgment in its
favor, against expenses actually and reasonably incurred by such person in
connection with the defense or settlement of such action or suit if such person
acted in good faith and in a manner such person reasonably believed to be in or
not opposed to the best interests of the corporation and except that no
indemnification shall be made in respect of any claim, issue or matter as to
which such person shall have been adjudged to be liable to the corporation
unless and only to the extent that the Delaware Court of Chancery or the court
in which such action or suit was brought shall determine upon application that,
despite the adjudication of liability but in view of all the circumstances of
the case, such person is fairly and reasonably entitled to indemnity for such
expenses which the Court of Chancery or such other court shall deem proper.  The
provisions regarding indemnification and advancement of expenses under Section
145 of the DGCL shall not be deemed exclusive of any other rights to which those
seeking indemnification or advancement of expenses may be entitled under any
bylaw, agreement, stockholders' or disinterested directors' vote or otherwise.

  Section 102(b)(7) of the DGCL permits a corporation to include in its
certificate of incorporation a provision eliminating or limiting the personal
liability of a director to the corporation or its stockholders for monetary
damages for breach of fiduciary duty as a director, provided that such provision
shall not eliminate or limit the liability of a director:  (i) for any breach of
the director's duty of loyalty to the corporation or its stockholders; (ii) for
acts or omissions not in good faith or which involve intentional misconduct or a
knowing violation of law; (iii) under Section 174 of the DGCL (relating to
unlawful payment of dividends and unlawful stock purchase and redemption); or
(iv) for any transaction from which the director derived an improper personal
benefit.

  As permitted by Section 145(e) of the DGCL, our Third Amended and Restated
Certificate of Incorporation and our Amended and Restated Bylaws provide that we
shall indemnify our directors and officers, and, to the extent our Board at any
time authorizes, incorporators, employees or agents, as such, to the fullest
extent permitted by applicable law, and that expenses reasonably incurred by any
officer or director or such other person entitled to indemnification in
connection with a threatened or actual action or proceeding shall be advanced or
promptly reimbursed by us in advance of the final disposition of such action or
proceeding, provided that, if required to do so under the DGCL, we receive an
undertaking by or on behalf of such officer or director or other person to repay
such amount if and to the extent that it is ultimately determined by final
judicial decision from which there is no further right of appeal that such
officer or director or other person is not entitled to indemnification.  Our
Third Amended and Restated Certificate of Incorporation provides that such
rights are not exclusive.

ITEM 21.  EXHIBITS AND FINANCIAL SCHEDULES.

  (a)  The following exhibits are, unless indicated below, filed herewith.

                                 EXHIBIT INDEX
Exhibit
Number                         Description of Document
- -------                        -----------------------

3.1       Third Amended and Restated Certificate of Incorporation, dated May 14,
          1999, of TeleCorp PCS, Inc.

3.2       Amended and Restated Bylaws, dated July 17, 1998, of TeleCorp PCS,
          Inc.

4.1       Indenture, dated as of April 23, 1999, by and between Bankers Trust
          Company, as trustee, and TeleCorp PCS, Inc. relating to the 11 5/8%
          Senior Subordinated Discount Notes due 2009

                                     II-1
<PAGE>

                                 EXHIBIT INDEX
Exhibit
Number                         Description of Document
- -------                        -----------------------

5.1*      Opinion of McDermott, Will & Emery regarding the legality of the
          securities being registered

10.1      Note Purchase Agreement by and between TeleCorp PCS, Inc. and Lucent
          Technologies, Inc., dated as of May 11, 1998

10.2      General Agreement for Purchase of PCS Systems and Services by and
          between TeleCorp PCS, Inc. and Lucent Technologies, Inc., dated as of
          May 12, 1998, as amended

10.3      Securities Purchase Agreement by and among TeleCorp PCS, Inc., AT&T
          Wireless PCS Inc, TWR Cellular, Inc. and certain Cash Equity
          Investors, TeleCorp Investors and Management Stockholders identified,
          dated as of January 23, 1998

10.4.1    Network Membership License Agreement by and among AT&T Corp.,
          including AT&T Wireless Services, Inc., and TeleCorp PCS, Inc., dated
          as of July 17, 1998

10.4.2    Amendment No. 1 to Network Membership License Agreement, dated March
          30, 1999

10.5.1    Management Agreement by and between TeleCorp Management Corp. and
          TeleCorp PCS, Inc., dated as of July 17, 1998

10.5.2    Amendment No. 1 to the Management Agreement between TeleCorp
          Management Corp. and TeleCorp PCS, Inc., dated as of May 25, 1999

10.6.1    Intercarrier Roamer Service Agreement by and between AT&T Wireless
          Services, Inc. and TeleCorp PCS, Inc., dated as of July 17, 1998

10.6.2    Amendment No. 1 to Intercarrier Roamer Service Agreement, dated May
          25, 1999

10.7      Roaming Administration Service Agreement by and between AT&T Wireless
          Services, Inc. and TeleCorp PCS, Inc., dated as of July 17, 1998

10.8.1    Credit Agreement by and among TeleCorp PCS, Inc., the Lenders party
          to, and the Chase Manhattan Bank, as Administrative Agent and Issuing
          Bank, TD Securities (USA) Inc., as Syndication Agent, and Bankers
          Trust Company, as Documentation Agent, dated as of July 17, 1998 (the
          "Credit Agreement")

10.8.2    First Amendment, Consent, and Waiver to the Credit Agreement, dated as
          of December 18, 1998

10.8.3    Second Amendment and Waiver to the Credit Agreement, dated as of March
          1, 1999

10.8.4    Third Amendment to the Credit Agreement, dated as of March 30, 1999

10.8.5    Fourth Amendment to the Credit Agreement, dated as of March 31, 1999

10.8.6    Fifth Amendment and Acceptance to the Credit Agreement, dated as of
          April 7, 1999

10.8.7    Sixth Amendment to the Credit Agreement, dated as of April 7, 1999

10.8.8    Seventh Amendment to the Credit Agreement, dated as of May 21, 1999

10.9      Stock Purchase Agreement by and among TeleCorp PCS, Inc., AT&T
          Wireless PCS, Inc. and certain Cash Equity Investors identified in,
          dated as of March 22, 1999

10.10     Stock Purchase Agreement by and among Viper Wireless, Inc., TeleCorp
          Holding Corp., Inc. and TeleCorp PCS, Inc., dated as of March 1, 1999

10.11     Puerto Rico Stock Purchase Agreement by and among TeleCorp PCS, Inc.,
          Puerto Rico Acquisition Corp. and certain Management Stockholders and
          Cash Equity Investors, dated as of March 30, 1999

                                     II-2
<PAGE>

                                 EXHIBIT INDEX
Exhibit
Number                         Description of Document
- -------                        -----------------------

10.12     Letter of Agreement by and between AT&T Wireless Services, Inc. and
          TeleCorp Communications, Inc., dated as of December 21, 1998

10.13     Asset Purchase Agreement, dated May 25, 1999, by and between AT&T
          Wireless PCS Inc. and TeleCorp PCS, Inc.

10.14     Preferred Stock Purchase Agreement, dated May 24, 1999, by and between
          AT&T Wireless PCS Inc. and TeleCorp PCS, Inc.

10.15     License Acquisition Agreement, dated May 15, 1998, by and between
          Mercury PCS II, LLC and TeleCorp PCS, Inc.

10.16     License Acquisition Agreement, dated May 15, 1998, by and between
          Wireless 2000, Inc. and TeleCorp PCS, Inc.

10.17.1   Stockholders' Agreement, dated as of July 17, 1998, by and among AT&T
          Wireless PCS, Inc., TWR Cellular, Inc., Cash Equity Investors,
          Management Stockholders, and TeleCorp PCS, Inc.

10.17.2   Amendment No. 1 to the Stockholders' Agreement, dated March 30, 1999

10.18     Purchase Agreement, dated April 20, 1999, by and among Chase
          Securities Inc., BT Alex. Brown Incorporated, Lehman Brothers Inc.,
          TeleCorp PCS, Inc. and TeleCorp Communications, Inc.

10.19     Exchange and Registration Rights Agreement, dated April 23, 1999, by
          and among Chase Securities Inc., BT Alex. Brown Incorporated, Lehman
          Brothers Inc., TeleCorp PCS, Inc. and TeleCorp Communications, Inc.

10.20     Agreement, dated as of July 17, 1998, by and among AT&T Wireless PCS
          Inc., TWR Cellular, Inc., the Cash Equity Investors, the TeleCorp
          Investors and the Management Stockholders.

10.21     Employee Agreement, dated as of July 17, 1998, by and between TeleCorp
          PCS, Inc. and Steven Chandler.

10.22     Share Grant Agreement, dated July 16, 1998, by and between TeleCorp
          PCS, Inc. and Steven Chandler.

10.23     Employee Agreement, dated as of July 17, 1998, by and between TeleCorp
          PCS, Inc. and Julie Dobson.

10.24     Share Grant Agreement, dated July 16, 1998, by and between TeleCorp
          PCS, Inc. and Julie Dobson.

10.25     Separation Agreement, dated as of March 8, 1999, by and among TeleCorp
          PCS, Inc., TeleCorp Communications, Inc. and Robert Dowski.

12.1      Statement re: computation of ratios.

21.1      Subsidiaries of TeleCorp PCS, Inc.

23.1*     Consent of McDermott, Will & Emery (contained in Exhibit 5.1)

23.2      Consent of PricewaterhouseCoopers, LLP

24.1      Power of Attorney for TeleCorp PCS, Inc. (included on signature page)

25.1      Statement of Eligibility of Trustee on Form T-1

27.1      Financial Data Schedule

99.1*     Letter of Transmittal

99.2*     Notice of Guaranteed Delivery

                                     II-3
<PAGE>

Exhibit
Number                         Description of Document
- -------                        -----------------------

99.3*     Exchange Agent Agreement


________________
*   To be filed by amendment.

                                     II-4
<PAGE>

ITEM 22.  UNDERTAKINGS.

     The undersigned registrant hereby undertakes:

     (a)  To file, during any period in which offers or sales are being made, a
post-effective amendment to this registration statement:

          (i)    To include any prospectus required by section 10(a)(3) of the
     Securities Act of 1933;

          (ii)   To reflect in the prospectus any facts or events arising after
     the effective date of the registration statement (or the most recent post-
     effective amendment) which, individually or in the aggregate, represent a
     fundamental change in the information set forth in the registration
     statement.  In spite of the foregoing, any increase or decrease in volume
     of securities offered (if the total dollar value of securities offered
     would not exceed that which was registered) and any deviation from the low
     or high end of the estimated maximum offering range may be reflected in the
     form of prospectus filed with the SEC under Rule 424(b) if , in the
     aggregate, the changes in volume and price represent no more than a 20%
     change in the maximum aggregate offering price set forth in the
     "Calculation of Registration Fee" table in the effective registration
     statement; and

          (iii)  To include any material information with respect to the plan of
     distribution not previously disclosed in the registration statement or any
     material change to such information in the registration.

     (b)  That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering.

     (c)  To respond to requests for information that is incorporated by
reference into the prospectus under Items 4, 10(b), 11, or 13 of this Form,
within one business day of receipt of such request, and to send the incorporated
documents by first class mail or other equally prompt means. This includes
information contained in documents filed subsequent to the effective date of the
registration statement through the date of responding to the request.

     (d)  To supply by means of a post-effective amendment all information
concerning a transaction, and the company being acquired involved, that was not
the subject of and included in the registration statement when it became
effective.

     (e)  The undersigned registrant hereby undertakes as follows: that prior to
any public reoffering of the securities registered hereunder through use of a
prospectus which is a part of this registration statement, by any person or
party who is deemed to be an underwriter within the meaning of Rule 145(c), the
issuer undertakes that such reoffering prospectus will contain the information
called for by the applicable registration form with respect to reofferings by
persons who may be deemed underwriters, in addition to the information called
for by the other Items of the applicable form.

     (f)  The registrant undertakes that every prospectus (i) that is filed
under paragraph (c) immediately preceding, or (ii) that purposes to meet the
requirements of section 10(a)(3) of the Securities Act of 1933 and is used in
connection with an offering of securities subject to Rule 415, will be filed as
part of an amendment to the registration statement and will not be used until
such amendment is effective, and that, for purposes of determining any liability
under the Securities Act of 1933, each such post-effectiveness amendment shall
be deemed to be a new registration statement relating to the securities offered
here, and the offering of such securities at that time shall be deemed to the
initial bona fide offering.

     (g)  Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the registrant under the foregoing provisions, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling persons of the registrant
in the successful defense of any action suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act of 1933 and will be governed by the
final adjudication of such issue.

                                     II-5
<PAGE>

                                  SIGNATURES

  Pursuant to the requirements of the Securities Act of 1933, the registrant has
duly caused this registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the city of Arlington, State of
Virginia, on June 22, 1999.


                              TELECORP PCS, INC.


                              By: /s/ Gerald T. Vento
                                 ---------------------------------
                                 Gerald T. Vento
                                 Chief Executive Officer


                               POWER OF ATTORNEY

  TeleCorp PCS, Inc. and each person whose signature appears below constitutes
and appoints Thomas H. Sullivan and Gerald T. Vento, and each of them, as true
and lawful attorneys-in-fact and agents with full power of substitution and
resubstitution for each such person and in such person's name, in any and all
capacities, (A) to sign all amendments (including pre-effective and post-
effective amendments) to this registration statement (and any registration
statement filed under Rule 462(b) of the Securities Act); (B) to file such
amendments with all exhibits and other related documents with the Securities and
Exchange Commission; and (C) to perform every act necessary in connection with
(A) or (B); and (2) ratifies and confirms everything that such attorneys-in-fact
and agents, or any or them, or their or his substitute or substitutes, may
lawfully do or cause to be done by virtue of this appointment.

  Pursuant to the requirements of the Securities Act of 1933, this registration
statement has been signed by the following persons in the capacities and on the
dates indicated.


    June 21   , 1999          By: /s/ Gerald T. Vento
- --------------                   -----------------------------------------------
                                 Gerald T. Vento
                                 Chief Executive Officer and Chairman (Principal
                                 Executive Officer)



    June 21   , 1999          By: /s/ Thomas H. Sullivan
- --------------                   -----------------------------------------------
                                 Thomas H. Sullivan
                                 Executive Vice President, Chief Financial
                                 Officer and Director (Principal Financial and
                                 Accounting Officer)


    June 21   , 1999          By: /s/ Michael R. Hannon
- --------------                   -----------------------------------------------
                                 Michael R. Hannon
                                 Director


______________, 1999          By:_______________________________________________
                                 Scott Anderson
                                 Director


______________, 1999          By:_______________________________________________
                                 Rohit M. Desai
                                 Director


______________, 1999          By:_______________________________________________
                                 Gary S. Fuqua
                                 Director
<PAGE>

   June 22    , 1999          By: /s/ James M. Hoak
- --------------                   -----------------------------------------------
                                 James M. Hoak
                                 Director


   June 21    , 1999          By: /s/ Mary Hawkins-Key
- --------------                   -----------------------------------------------
                                 Mary Hawkins-Key
                                 Director


   June 21    , 1999          By: /s/ William Kussell
- --------------                   -----------------------------------------------
                                 William Kussell
                                 Director


   June 21    , 1999          By: /s/ William Laverack, Jr.
- --------------                   -----------------------------------------------
                                 William Laverack, Jr.
                                 Director


   June 22    , 1999          By: /s/ Joseph O'Donnell
- --------------                   -----------------------------------------------
                                 Joseph O'Donnell
                                 Director


   June 21    , 1999          By: /s/ Michael Schwartz
- --------------                   -----------------------------------------------
                                 Michael Schwartz
                                 Director


   June 21    , 1999          By: /s/ James F. Wade
- --------------                   -----------------------------------------------
                                 James F. Wade
                                 Director
<PAGE>


                                 EXHIBIT INDEX
Exhibit
Number                         Description of Document
- -------                        -----------------------

3.1       Third Amended and Restated Certificate of Incorporation, dated May 14,
          1999, of TeleCorp PCS, Inc.

3.2       Amended and Restated Bylaws, dated July 17, 1998, of TeleCorp PCS,
          Inc.

4.1       Indenture, dated as of April 23, 1999, by and between Bankers Trust
          Company, as trustee, and TeleCorp PCS, Inc. relating to the 11 5/8%
          Senior Subordinated Discount Notes due 2009

5.1*      Opinion of McDermott, Will & Emery regarding the legality of the
          securities being registered

10.1      Note Purchase Agreement by and between TeleCorp PCS, Inc. and Lucent
          Technologies, Inc., dated as of May 11, 1998

10.2      General Agreement for Purchase of PCS Systems and Services by and
          between TeleCorp PCS, Inc. and Lucent Technologies, Inc., dated as of
          May 12, 1998, as amended

10.3      Securities Purchase Agreement by and among TeleCorp PCS, Inc., AT&T
          Wireless PCS Inc, TWR Cellular, Inc. and certain Cash Equity
          Investors, TeleCorp Investors and Management Stockholders identified,
          dated as of January 23, 1998

10.4.1    Network Membership License Agreement by and among AT&T Corp.,
          including AT&T Wireless Services, Inc., and TeleCorp PCS, Inc., dated
          as of July 17, 1998

10.4.2    Amendment No. 1 to Network Membership License Agreement, dated March
          30, 1999

10.5.1    Management Agreement by and between TeleCorp Management Corp. and
          TeleCorp PCS, Inc., dated as of July 17, 1998

10.5.2    Amendment No. 1 to the Management Agreement between TeleCorp
          Management Corp. and TeleCorp PCS, Inc., dated as of May 25, 1999

10.6.1    Intercarrier Roamer Service Agreement by and between AT&T Wireless
          Services, Inc. and TeleCorp PCS, Inc., dated as of July 17, 1998

10.6.2    Amendment No. 1 to Intercarrier Roamer Service Agreement, dated May
          25, 1999

10.7      Roaming Administration Service Agreement by and between AT&T Wireless
          Services, Inc. and TeleCorp PCS, Inc., dated as of July 17, 1998

10.8.1    Credit Agreement by and among TeleCorp PCS, Inc., the Lenders party
          to, and the Chase Manhattan Bank, as Administrative Agent and Issuing
          Bank, TD Securities (USA) Inc., as Syndication Agent, and Bankers
          Trust Company, as Documentation Agent, dated as of July 17, 1998 (the
          "Credit Agreement")

10.8.2    First Amendment, Consent, and Waiver to the Credit Agreement, dated as
          of December 18, 1998

10.8.3    Second Amendment and Waiver to the Credit Agreement, dated as of March
          1, 1999

10.8.4    Third Amendment to the Credit Agreement, dated as of March 30, 1999

10.8.5    Fourth Amendment to the Credit Agreement, dated as of March 31, 1999

10.8.6    Fifth Amendment and Acceptance to the Credit Agreement, dated as of
          April 7, 1999

10.8.7    Sixth Amendment to the Credit Agreement, dated as of April 7, 1999

10.8.8    Seventh Amendment to the Credit Agreement, dated as of May 21, 1999

10.9      Stock Purchase Agreement by and among TeleCorp PCS, Inc., AT&T
          Wireless PCS, Inc. and certain Cash Equity Investors identified in,
          dated as of March 22, 1999

10.10     Stock Purchase Agreement by and among Viper Wireless, Inc., TeleCorp
          Holding Corp., Inc. and TeleCorp PCS, Inc., dated as of March 1, 1999

10.11     Puerto Rico Stock Purchase Agreement by and among TeleCorp PCS, Inc.,
          Puerto Rico Acquisition Corp. and certain Management Stockholders and
          Cash Equity Investors, dated as of March 30, 1999

<PAGE>


                                 EXHIBIT INDEX
Exhibit
Number                         Description of Document
- -------                        -----------------------

10.12     Letter of Agreement by and between AT&T Wireless Services, Inc. and
          TeleCorp Communications, Inc., dated as of December 21, 1998

10.13     Asset Purchase Agreement, dated May 25, 1999, by and between AT&T
          Wireless PCS Inc. and TeleCorp PCS, Inc.

10.14     Preferred Stock Purchase Agreement, dated May 24, 1999, by and between
          AT&T Wireless PCS Inc. and TeleCorp PCS, Inc.

10.15     License Acquisition Agreement, dated May 15, 1998, by and between
          Mercury PCS II, LLC and TeleCorp PCS, Inc.

10.16     License Acquisition Agreement, dated May 15, 1998, by and between
          Wireless 2000, Inc. and TeleCorp PCS, Inc.

10.17.1   Stockholders' Agreement, dated as of July 17, 1998, by and among AT&T
          Wireless PCS, Inc., TWR Cellular, Inc., Cash Equity Investors,
          Management Stockholders, and TeleCorp PCS, Inc.

10.17.2   Amendment No. 1 to the Stockholders' Agreement, dated March 30, 1999

10.18     Purchase Agreement, dated April 20, 1999, by and among Chase
          Securities Inc., BT Alex. Brown Incorporated, Lehman Brothers Inc.,
          TeleCorp PCS, Inc. and TeleCorp Communications, Inc.

10.19     Exchange and Registration Rights Agreement, dated April 23, 1999, by
          and among Chase Securities Inc., BT Alex. Brown Incorporated, Lehman
          Brothers Inc., TeleCorp PCS, Inc. and TeleCorp Communications, Inc.

10.20     Agreement, dated as of July 17, 1998, by and among AT&T Wireless PCS
          Inc., TWR Cellular, Inc., the Cash Equity Investors, the TeleCorp
          Investors and the Management Stockholders.

10.21     Employee Agreement, dated as of July 17, 1998, by and between TeleCorp
          PCS, Inc. and Steven Chandler.

10.22     Share Grant Agreement, dated July 16, 1998, by and between TeleCorp
          PCS, Inc. and Steven Chandler.

10.23     Employee Agreement, dated as of July 17, 1998, by and between TeleCorp
          PCS, Inc. and Julie Dobson.

10.24     Share Grant Agreement, dated July 16, 1998, by and between TeleCorp
          PCS, Inc. and Julie Dobson.

10.25     Separation Agreement, dated as of March 8, 1999, by and among TeleCorp
          PCS, Inc., TeleCorp Communications, Inc. and Robert Dowski.

12.1      Statement re: computation of ratios.

21.1      Subsidiaries of TeleCorp PCS, Inc.

23.1*     Consent of McDermott, Will & Emery (contained in Exhibit 5.1)

23.2      Consent of PricewaterhouseCoopers, LLP

24.1      Power of Attorney for TeleCorp PCS, Inc. (included on signature page)

25.1      Statement of Eligibility of Trustee on Form T-1

27.1      Financial Data Schedule

99.1*     Letter of Transmittal

99.2*     Notice of Guaranteed Delivery

<PAGE>


Exhibit
Number                         Description of Document
- -------                        -----------------------

99.3*     Exchange Agent Agreement


________________
*   To be filed by amendment.



<PAGE>

                                                                   EXHIBIT 3.1.1


            THIRD AMENDED AND RESTATED CERTIFICATE OF INCORPORATION

                                      OF

                              TELECORP PCS, INC.

          TeleCorp PCS, Inc., a corporation organized and existing under the
laws of the State of Delaware, hereby certifies as follows:

          FIRST:  The name of the corporation is TeleCorp PCS, Inc. (the
"Corporation").  The original Certificate of Incorporation of the Corporation
was filed with the Secretary of State of the State of Delaware on November 14,
1997 and was amended and restated pursuant to a Restated Certificate of
Incorporation filed with the Secretary of State of the State of Delaware on July
16, 1998 and a Second Amended and Restated Certificate of Incorporation filed
with the Secretary of State of the State of Delaware April 20, 1999 (the "Second
Restated Certificate of Incorporation").

          SECOND:  This Third Amended and Restated Certificate of Incorporation
(the "Restated Certificate of Incorporation") has been duly adopted in
accordance with the provisions of Sections 242 and 245 of the General
Corporation Law of the State of Delaware.

          THIRD:  This Restated Certificate of Incorporation restates,
integrates and amends the provisions of the Corporation's Second Restated
Certificate of Incorporation, as follows:

                                   ARTICLE I

          The name of the Corporation shall be TeleCorp PCS, Inc.

                                  ARTICLE II

          The address of the Corporation's registered office in the State of
Delaware is Corporation Trust Center, 1209 Orange Street, Wilmington, New Castle
County, Delaware 19801.  The name of its registered agent at such address is The
Corporation Trust Company.

                                  ARTICLE III

          The purpose of the Corporation is to engage in, carry on and conduct
any lawful act or activity for which corporations may be organized under the
General Corporation Law of the State of Delaware (the "GCL").
                                                       ---

                                  ARTICLE IV

  4.1  Classes of Stock.  The total number of shares of all classes of stock
       ----------------
which the
<PAGE>

Corporation shall have authority to issue is 2,619,010, consisting of (a)
715,000 shares of preferred stock, par value $0.01 per share (the "Preferred
                                                                   ---------
Stock"), consisting of 100,000 shares designated "Series A Convertible Preferred
- -----
Stock" (the "Series A Preferred Stock"), 200,000 shares designated "Series B
             ------------------------
Preferred Stock" (the "Series B Preferred Stock"), 215,000 shares designated
                       ------------------------
"Series C Preferred Stock" (the "Series C Preferred Stock"), 50,000 shares
                                 ------------------------
designated "Series D Preferred Stock" (the "Series D Preferred Stock"), 30,000
                                            ------------------------
shares designated "Series E Preferred Stock" (the "Series E Preferred Stock"),
                                                   ------------------------
50,000 shares designated "Series F Preferred Stock" (the "Series F Preferred
                                                          ------------------
Stock"), and 70,000 shares designated "Senior Common Stock" (the "Senior Common
- -----                                                             -------------
Stock"), and (b) 1,904,010 shares of common stock, par value $0.01 per share
- -----
(the "Common Stock"), consisting of 950,000 shares designated "Class A Voting
      ------------
Common Stock" (the "Class A Common Stock"), 950,000 shares designated "Class B
                    --------------------
Non-Voting Common Stock" (the "Class B Common Stock"), 1,000 shares designated
                               --------------------
"Class C Common Stock" (the "Class C Common Stock"), 3,000 shares designated
                             --------------------
"Class D Common Stock" (the "Class D Common Stock") and 10 shares designated
                             --------------------
"Voting Preference Common Stock" (the "Voting Preference Common Stock").
                                       ------------------------------
(Capitalized terms used herein and not otherwise defined shall have the meanings
set forth in Section 4.14.)

     4.2    Additional Series of Preferred Stock.

     (a)    Subject to approval by holders of shares of any class or series of
Preferred Stock to the extent such approval is required by its terms, the Board
of Directors of the Corporation (the "Board of Directors") is hereby expressly
                                      ------------------
authorized, by resolution or resolutions, to provide, out of the unissued shares
of Preferred Stock, for series of Preferred Stock in addition to the Series A
Preferred Stock, the Series B Preferred Stock, the Series C Preferred Stock, the
Series D Preferred Stock, the Series E Preferred Stock, the Series F Preferred
Stock and the Senior Common Stock.  Before any shares of any such series are
issued, the Board of Directors shall fix, and hereby is expressly empowered to
fix, by resolutions, the following provisions of the shares thereof:

     (i)    the designation of such series, the number of shares to constitute
such series and the stated value thereof if different from the par value
thereof;

     (ii)   whether the shares of such series shall have voting rights, in
addition to any voting rights provided by law, and, if so, the terms of such
voting rights, which may be general or limited;

     (iii)  the dividends, if any, payable on such series, whether any such
dividends shall be cumulative, and, if so, from what dates, the conditions and
dates upon which such dividends shall be payable, the preference or relation
which such dividends shall bear to the dividends payable on any shares of stock
of any other class or any other series of this class;

     (iv)   whether the shares of such series shall be subject to redemption by
the Corporation, and, if so, the times, prices and other conditions of such
redemption;

     (v)    the amount or amounts payable upon shares of such series upon, and
the

                                      -2-
<PAGE>

rights of the holders of such series in, the voluntary or involuntary
liquidation, dissolution or winding up, or upon any distribution of the assets,
of the Corporation;

     (vi)   whether the shares of such series shall be subject to the operation
of a retirement or sinking fund and, if so, the extent to and manner in which
any such retirement or sinking fund shall be applied to the purchase or
redemption of the shares of such series for retirement or other corporate
purposes and the terms and provisions relative to the operation thereof;

     (vii)  whether the shares of such series shall be convertible into, or
exchangeable for, shares of stock of any other class or any other series of this
class or any other securities and, if so, the price or prices or the rate or
rates of conversion or exchange and the method, if any, of adjusting the same,
and any other terms and conditions of conversion or exchange;

     (viii) the limitations and restrictions, if any, to be effective while any
shares of such series are outstanding upon the payment of dividends or the
making of other distributions on, and upon the purchase, redemption other
acquisition by the Corporation of, the Common Stock or shares of stock of any
other class or any other series of this class;

     (ix)   the conditions or restrictions, if any, upon the creation of
indebtedness of the Corporation or upon the issue of any additional stock,
including additional shares of such series or of any other series of this class
or of any other class; and

     (x)    any other powers, preferences and relative, participating, optional
and other special rights, and any qualifications, limitations and restrictions
thereof.

     (b)    The powers, preferences and relative, participating, optional and
other special rights of each series of Preferred Stock, and the qualifications,
limitations or restrictions thereof, if any, may differ from those of any and
all other series at any time outstanding. All shares of any one series of
Preferred Stock shall be identical in all respects with all other shares of such
series, except that shares of any one series issued at different times may
differ as to the dates from which dividends thereon shall be cumulative.

     (c)    Shares of Preferred Stock of any series that have been redeemed
(whether through the operation of a sinking fund or otherwise) or that, if
convertible or exchangeable, have been converted into or exchanged for any other
security shall have the status of authorized and unissued shares of Preferred
Stock of the same series and may be reissued as a part of the series of which
they were originally a part or may be reclassified and reissued as part of a new
series of shares of Preferred Stock to be created by resolution or resolutions
of the Board of Directors or as part of any other series of shares of Preferred
Stock, all subject to the conditions or restrictions on issuance set forth in
the resolution or resolutions adopted by the Board of Directors providing for
the issue of any series of shares of Preferred Stock.

                                      -3-
<PAGE>

     (d)  Subject to the provisions of this Restated Certificate of
Incorporation and except as otherwise provided by law, the stock of the
Corporation, regardless of class, may be issued for such consideration and for
such corporate purposes as the Board of Directors may from time to time
determine.

     4.3  Powers, Preferences and Rights of the Series A Preferred Stock. The
          --------------------------------------------------------------
powers, preferences and rights of the Series A Preferred Stock and the
qualifications, limitations and restrictions thereof are as follows:

     (a)  Ranking. The Series A Preferred Stock shall, with respect to the
          -------
payment of dividends and the distribution of assets on liquidation, dissolution
or winding up, rank on a parity with the Series B Preferred Stock, and rank
senior to Junior Stock.

     (b)  Dividends and Distributions.
          ---------------------------

     (i)    Dividends. The holders of shares of Series A Preferred Stock shall
            ---------
be entitled to receive, as and when declared by the Board of Directors, out of
funds legally available therefor, dividends on each outstanding share of Series
A Preferred Stock, at an annual rate per share equal to ten percent (10%) of the
Liquidation Preference, calculated on the basis of a 360-day year consisting of
twelve 30-day months. Dividends shall be paid quarterly in arrears on the
Dividend Payment Date commencing September 30, 1998 in the manner provided in
paragraph (iii) below.

     (ii)   Accrued Dividends, Record Date. Dividends payable pursuant to
            ------------------------------
paragraph (i) above shall begin to accrue and be cumulative from the date on
which shares of Series A Preferred Stock are issued, and shall begin to accrue
on a daily basis, in each case whether or not earned or declared. The Board of
Directors may fix a record date for the determination of holders of shares of
Series A Preferred Stock entitled to receive payment of the dividends payable
pursuant to paragraph (i) above, which record date shall not be more than 60
days prior to the Dividend Payment Date.

     (iii)  Payment. All dividends shall be payable in cash. Until the 42nd
            -------
Dividend Payment Date, the Corporation shall have the option to defer payment of
dividends on Series A Preferred Stock.  Any dividend payments so deferred shall
be payable on and not earlier than the 42nd Dividend Payment Date.

     (iv)   Dividends Pro Rata. All dividends paid with respect to shares of
            ------------------
Series A Preferred Stock pursuant to this Section 4.3(b) shall be paid pro rata
to the holders entitled thereto. In the event that the funds legally available
therefor shall be insufficient for the payment of the entire amount of cash
dividends payable at any Dividend Payment Date, subject to Section 4.3(c), such
funds shall be allocated for the payment of dividends with respect to the shares
of Series A Preferred Stock and Series B Preferred Stock pro rata based upon the
Liquidation Preference of the outstanding shares.

     (c)    Certain Restrictions.
            --------------------

     (i)    Notwithstanding the provisions of Sections 4.3(b), (e) and (f), cash

                                      -4-
<PAGE>

dividends on the Series A Preferred Stock may not be declared, paid or set apart
for payment, nor may the Corporation redeem, purchase or otherwise acquire any
shares of Series A Preferred Stock, if (A) the Corporation is not solvent or
would be rendered insolvent thereby or (B) at such time the terms and provisions
of any law or agreement of the Corporation, including any agreement relating to
its indebtedness, specifically prohibit such declaration, payment or setting
apart for payment or such redemption, purchase or other acquisition, or provide
that such declaration, payment or setting apart for payment or such redemption,
purchase or other acquisition would constitute a violation or breach thereof or
a default thereunder.

     (ii)   So long as shares of Series A Preferred Stock are outstanding or
dividends payable on shares of Series A Preferred Stock have not been paid in
full in cash, then the Corporation shall not declare or pay cash dividends on,
or redeem, purchase or otherwise acquire for consideration, any shares of Common
Stock or other shares of Junior Stock, except with the prior written consent of
holders of a majority of the outstanding shares of Series A Preferred Stock,
except that the Corporation may acquire, in accordance with the terms of any
agreement between the Corporation and its employees, shares of Common Stock or
Preferred Stock at a price not greater than the Market Price as of such date.

     (iii)  The Corporation shall not permit any Subsidiary of the Corporation,
or cause any other Person, to make any distribution with respect to, or purchase
or otherwise acquire for consideration, any shares of capital stock of the
Corporation, unless the Corporation could, pursuant to paragraph (ii) above,
make such distribution or purchase or otherwise acquire such shares at such time
and in such manner.

     (d)    Voting Rights; Election of Directors.
            ------------------------------------

     (i)    The holders of shares of Series A Preferred Stock shall not have any
right to vote on any matters to be voted on by the stockholders of the
Corporation, except as otherwise provided in paragraphs (ii) and (iii) below or
as provided by law, and the shares of Series A Preferred Stock shall not be
included in determining the number of shares voting or entitled to vote on any
such matters (other than the matters described in paragraphs (ii) and (iii)
below or as otherwise required by law).

     (ii)   Unless the consent or approval of a greater number of shares shall
then be required by law, the affirmative vote of the holders of a majority of
the outstanding shares of Series A Preferred Stock in person or by proxy, at
each special and annual meeting of stockholders called for the purpose, or by
written consent, shall be necessary to (A) authorize, increase the authorized
number of shares of or issue (including on conversion or exchange of any
convertible or exchangeable securities or by reclassification) any shares of any
class or classes of Senior Stock or Parity Stock or any additional shares of
Series A Preferred Stock, (B) authorize, adopt or approve each amendment to this
Restated Certificate of Incorporation that would increase or decrease the par
value of the shares of Series A Preferred Stock, alter or change the

                                      -5-
<PAGE>

powers, preferences or rights of the shares of Series A Preferred Stock or alter
or change the powers, preferences or rights of any other capital stock of the
Corporation if such alteration or change results in such capital stock being
Senior Stock or Parity Stock, (C) amend, alter or repeal any provision of this
Restated Certificate of Incorporation so as to affect the shares of Series A
Preferred Stock adversely, or (D) authorize or issue any security convertible
into, exchangeable for or evidencing the right to purchase or otherwise receive
any shares of any class or classes of Senior Stock or Parity Stock.

     (iii)  So long as the Initial Holders own in the aggregate at least two-
thirds (2/3) of the number of shares of Series A Preferred Stock owned by it on
the date hereof, holders of shares of Series A Preferred Stock shall have the
exclusive right, voting separately as a single class, to nominate two directors
of the Corporation or, at any time after the later of (x) the IPO Date or (y)
the date on which shares of Class A Common Stock and Voting Preference Common
Stock vote as a single class for all purposes, one director.  The foregoing
right to nominate two directors (or one director) may be exercised at any annual
meeting of stockholders or a special meeting of stockholders or holders of
Series A Preferred Stock held for such purpose or any adjournment thereof, or by
the written consent, delivered to the Secretary of the Corporation, of the
holders of a majority of the issued and outstanding shares of Series A Preferred
Stock.  Notwithstanding the foregoing, the Initial Holders shall have the right,
exercisable at any time by written notice delivered to the Secretary of the
Corporation, to surrender and cancel irrevocably such right to nominate two
directors (or one director) of the Corporation.

     (e)    Redemption at Option of the Corporation. The Corporation shall have
            ---------------------------------------
the right to redeem shares of Series A Preferred Stock pursuant to the following
provisions:

     (i)    The Corporation shall not have any right to redeem shares of the
Series A Preferred Stock prior to, with respect to any share of the Series A
Preferred Stock, the 30th day after the tenth anniversary of the issuance of
such share. Thereafter, subject to the restrictions in Section 4.3(c)(i), the
Corporation shall have the right, at its sole option and election, to redeem the
shares of the Series A Preferred Stock, in whole but not in part, at any time at
a redemption price (the "Series A Redemption Price") per share equal to the
                         -------------------------
Liquidation Preference as of the redemption date;

     (ii)   Notice of any redemption of the Series A Preferred Stock shall be
mailed at least ten, but not more than 60, days prior to the date fixed for
redemption to each holder of Series A Preferred Stock to be redeemed, at such
holder's address as it appears on the books of the Corporation. In order to
facilitate the redemption of the Series A Preferred Stock, the Board of
Directors may fix a record date for the determination of holders of Series A
Preferred Stock to be redeemed, or may cause the transfer books of the
Corporation to be closed for the transfer of the Series A Preferred Stock, not
more than 60 days prior to the date fixed for such redemption;

     (iii)  Within two Business Days after the redemption date specified in the
notice given pursuant to paragraph (ii) above and the surrender of the
certificate(s) representing shares of Series A Preferred Stock, the Corporation
shall pay to the holder of the shares

                                      -6-
<PAGE>

being redeemed the Series A Redemption Price therefor. Such payment shall be
made by wire transfer of immediately available funds to an account designated by
such holder or by overnight delivery (by a nationally recognized courier) of a
bank check to such holder's address as it appears on the books of the
Corporation; and

     (iv)   Effective upon the date of the notice given pursuant to paragraph
(ii) above, notwithstanding that any certificate for such shares shall not have
been surrendered for cancellation, the shares represented thereby shall no
longer be deemed outstanding, the rights to receive dividends thereon shall
cease to accrue from and after the date of redemption designated in the notice
of redemption and all rights of the holders of the shares of the Series A
Preferred Stock called for redemption shall cease and terminate, excepting only
the right to receive the Series A Redemption Price therefor in accordance with
paragraph (iii) above and the right to convert such shares into shares of Class
A Common Stock until the close of business on the third Business Day preceding
the redemption date, as provided in Section 4.3(i).

     (f)    Redemption at Option of Holder.
            ------------------------------

     (i)    No holder of shares of Series A Preferred Stock shall have any right
to require the Corporation to redeem any shares of Series A Preferred Stock
prior to, with respect to any share of the Series A Preferred Stock, the 30th
day after the twentieth anniversary of the issuance of such share. Thereafter,
subject to the restrictions set forth in Section 4.3(c)(i), each holder of
shares of Series A Preferred Stock shall have the right, at the sole option and
election of such holder, to require the Corporation to redeem all (but not less
than all) of the shares of Series A Preferred Stock owned by such holder at a
price per share equal to the Series A Redemption Price;

     (ii)   The holder of any shares of the Series A Preferred Stock may
exercise such holder's right to require the Corporation to redeem such shares by
surrendering for such purpose to the Corporation, at its principal office or at
such other office or agency maintained by the Corporation for that purpose,
certificates representing the shares of Series A Preferred Stock to be redeemed,
accompanied by a written notice stating that such holder elects to require the
Corporation to redeem all (but not less than all) of such shares in accordance
with the provisions of this Section 4.3(f), which notice may specify an account
for delivery of the Series A Redemption Price;

     (iii)  Within two Business Days after the surrender of such certificates,
the Corporation shall pay to the holder of the shares being redeemed the Series
A Redemption Price therefor. Such payment shall be made by wire transfer of
immediately available funds to an account designated by such holder or by
overnight delivery (by a nationally recognized courier) of a bank check to such
holder's address as it appears on the books of the Corporation; and

     (iv)   Such redemptions shall be deemed to have been made at the close of
business on the date of the receipt of such notice and of such surrender of the
certificates representing the shares of the Series A Preferred Stock to be
redeemed and the rights of

                                      -7-
<PAGE>

the holder thereof, except for the right to receive the Series A Redemption
Price therefor in accordance herewith, shall cease on such date of receipt and
surrender.

     (g)    Reacquired Shares. Any shares of the Series A Preferred Stock
            -----------------
redeemed or purchased or otherwise acquired by the Corporation in any manner
whatsoever shall be retired and canceled promptly after the acquisition thereof.
All such shares shall upon their cancellation become authorized but unissued
shares of Preferred Stock and may be reissued pursuant to Section 4.2(c) as part
of a new series of Preferred Stock to be created by resolution or resolutions of
the Board of Directors, subject to the conditions or restrictions on issuance
set forth herein.

     (h)    Liquidation, Dissolution or Winding Up.
            --------------------------------------

     (i)    In the event of any liquidation, dissolution or winding up of the
Corporation, either voluntary or involuntary, before any distribution or payment
to holders of Junior Stock, the holders of shares of Series A Preferred Stock
shall be entitled to be paid an amount equal to the Liquidation Preference with
respect to each share of Series A Preferred Stock.

     (ii)   If, upon any liquidation, dissolution or winding up of the
Corporation, the assets of the Corporation available for distribution to the
holders of Series A Preferred Stock shall be insufficient to permit payment in
full to such holders of the sums which such holders are entitled to receive in
such case, then all of the assets available for distribution to holders of the
Series A Preferred Stock and Series B Preferred Stock shall be distributed among
and paid to such holders ratably in proportion to the amounts that would be
payable to such holders if such assets were sufficient to permit payment in
full.

     (iii)  Neither the consolidation or merger of the Corporation with or into
any other Person nor the sale or other distribution to another Person of all or
substantially all the assets, property or business of the Corporation, shall be
deemed to be a liquidation, dissolution or winding up of the Corporation for
purposes of this Section 4.3(h).

     (i)    Conversion.
            ----------

     (i)    Stockholders' Right To Convert. No holder of shares of Series A
            ------------------------------
Preferred Stock shall have any right to convert any shares of Series A Preferred
Stock into Class A Common Stock or any other securities of the Corporation prior
to July 17, 2006. Thereafter, each share of Series A Preferred Stock held by the
Initial Holders or a Qualified Transferee shall be convertible, at the sole
option and election of the Initial Holders or Qualified Transferee, into fully
paid and non-assessable shares of Class A Common Stock.

     (ii)   Number of Shares of Class A Common Stock Issuable upon Conversion.
            -----------------------------------------------------------------
The number of shares of Class A Common Stock to be issued upon conversion of
shares of Series A Preferred Stock pursuant to paragraph (i) above shall be
equal to the product of (A) the Series A Conversion Rate as of the date of the
applicable notice pursuant to

                                      -8-
<PAGE>

paragraph (iv) below, multiplied by (B) the number of shares of Series A
Preferred Stock to be converted.

     (iii)  Fractional Shares. Notwithstanding any other provision of this
            -----------------
Restated Certificate of Incorporation, the Corporation shall not be required to
issue fractions of shares upon conversion of any shares of Series A Preferred
Stock or to distribute certificates which evidence fractional shares.  In lieu
of fractional shares, the Corporation may pay therefor, at the time of any
conversion of shares of Series A Preferred Stock as herein provided, an amount
in cash equal to such fraction multiplied by the Market Price of a share of
Class A Common Stock on such date.

     (iv)   Mechanics of Conversion. The Initial Holders or Qualified Transferee
            -----------------------
may exercise its option to convert by surrendering for such purpose to the
Corporation, at its principal office or such other office or agency maintained
by the Corporation for that purpose, certificates representing the shares of
Series A Preferred Stock to be converted, accompanied by a written notice,
delivered in accordance with the terms of the Stockholders Agreement, stating
that such holder elects to convert such shares in accordance with this Section
4.3(i). The date of receipt of such certificates and notice by the Corporation
at such office shall be the conversion date (the "Series A Conversion Date").
                                                  ------------------------
If required by the Corporation, certificates surrendered for conversion shall be
endorsed or accompanied by a written instrument or instruments of transfer, in
form satisfactory to the Corporation, duly executed by the registered holder or
his or its attorney duly authorized in writing.  Within ten Business Days after
the Series A Conversion Date (or, if at the time of such surrender the shares of
Class A Common Stock are not listed or admitted for trading on any national
securities exchange and are not quoted on NASDAQ or any similar service, within
ten Business Days of the determination of the Market Price pursuant to the
Appraisal Procedure), the Corporation shall issue to such holder a number of
shares of Class A Common Stock into which such shares of Series A Preferred
Stock are convertible pursuant to paragraph (ii) above.  Certificates
representing such shares of Class A Common Stock shall be delivered to such
holder at such holder's address as it appears on the books of the Corporation.

     (v)    Termination of Rights. All shares of Series A Preferred Stock which
            ---------------------
shall have been surrendered for conversion as herein provided shall no longer be
deemed to be outstanding and all rights with respect to such shares, including
the rights, if any, to receive notices and to vote, shall immediately cease and
terminate on the Series A Conversion Date, except only the right of the holders
thereof to receive shares of Class A Common Stock in exchange therefor and
payment of any declared and unpaid dividends thereon.

     (vi)   No Conversion Charge or Tax. The issuance and delivery of
            ---------------------------
certificates for shares of Class A Common Stock upon the conversion of shares of
Series A Preferred Stock shall be made without charge to the holder of shares of
Series A Preferred Stock for any issue or transfer tax, or other incidental
expense in respect of the issuance or delivery of such certificates or the
securities represented thereby, all of which taxes and expenses shall be paid by
the Corporation.

                                      -9-
<PAGE>

     (vii)  Reorganization, Reclassification and Merger Adjustment. If there
            ------------------------------------------------------
occurs any capital reorganization or any reclassification of the Class A Common
Stock of the Corporation, the consolidation or merger of the Corporation with or
into another Person (other than a merger or consolidation of the Corporation in
which the Corporation is the continuing corporation and which does not result in
any reclassification or change of outstanding shares of its Class A Common
Stock) or the sale or conveyance of all or substantially all of the assets of
the Corporation to another Person, then each share of Series A Preferred Stock
shall thereafter be convertible into the same kind and amounts of securities
(including shares of stock) or other assets, or both, which were issuable or
distributable to the holders of outstanding Class A Common Stock of the
Corporation upon such reorganization, reclassification, consolidation, merger,
sale or conveyance, in respect of that number of shares of Class A Common Stock
into which such share of Series A Preferred Stock might have been converted
immediately prior to such reorganization, reclassification, consolidation,
merger, sale or conveyance; and, in any such case, appropriate adjustments (as
determined in good faith by the Board of Directors of the Corporation, whose
determination shall be conclusive) shall be made to assure that the provisions
set forth herein shall thereafter be applicable, as nearly as reasonably may be
practicable, in relation to any securities or other assets thereafter
deliverable upon the conversion of the Series A Preferred Stock.

     (viii) Notice of Adjustment.  Whenever the securities or other property
            --------------------
deliverable upon the conversion of the Series A Preferred Stock shall be
adjusted pursuant to the provisions hereof, the Corporation shall promptly give
written notice thereof to each holder of shares of Series A Preferred Stock at
such holder's address as it appears on the transfer books of the Corporation and
shall forthwith file, at its principal executive office and with any transfer
agent or agents for the Series A Preferred Stock and the Class A Common Stock, a
certificate, signed by the Chairman of the Board, President or one of the Vice
Presidents of the Corporation, and by its Chief Financial Officer, Treasurer or
one of its Assistant Treasurers, stating the securities or other property
deliverable per share of Series A Preferred Stock calculated to the nearest cent
or to the nearest one-hundredth of a share and setting forth in reasonable
detail the method of calculation and the facts requiring such adjustment and
upon which such calculation is based. Each adjustment shall remain in effect
until a subsequent adjustment hereunder is required.

     (ix)   Reservation of Class A Common Stock. The Corporation shall at all
            -----------------------------------
times reserve and keep available for issuance upon the conversion of the shares
of Series A Preferred Stock the maximum number of its authorized but unissued
shares of Class A Common Stock as is reasonably anticipated to be sufficient to
permit the conversion of all outstanding shares of Series A Preferred Stock, and
shall take all action required to increase the authorized number of shares of
Class A Common Stock if at any time there shall be insufficient authorized but
unissued shares of Class A Common Stock to permit such reservation or to permit
the conversion of all outstanding shares of Series A Preferred Stock.

     (j)    Qualified Transfer. If at any time an Initial Holders or Qualified
            ------------------
Transferee

                                      -10-
<PAGE>

desires to sell, transfer or otherwise dispose of shares of Series A Preferred
Stock pursuant to a Qualified Transfer, it shall, with respect to each such
proposed transfer, give written notice (a "Qualified Transfer Notice") to the
                                           -------------------------
Corporation at its principal executive office specifying up to ten prospective
transferees. Upon receipt of such notice, the Corporation shall have ten days to
give written notice to the Initial Holders or Qualified Transferee specifying
its disapproval of (A) any or all of such prospective transferees if it has good
reason for such disapproval and specifying such reason and (B) up to two of such
prospective transferees with or without good reason.

     (k)    Notice of Certain Events. In case the Corporation shall propose at
            ------------------------
any time or from time to time (i) to declare or pay any dividend payable in
stock of any class to the holders of Common Stock or to make any other
distribution to the holders of Common Stock, (ii) to offer to the holders of
Common Stock rights or warrants to subscribe for or to purchase any additional
shares of Common Stock or shares of stock of any class or any other securities,
rights or options, (iii) to effect any reclassification of its Common Stock,
(iv) to effect any consolidation, merger or sale, transfer or other disposition
of all or substantially all of the property, assets or business of the
Corporation which would, if consummated, adjust the Series A Conversion Rate or
the securities issuable upon conversion of shares of Series A Preferred Stock,
or (v) to effect the liquidation, dissolution or winding up of the Corporation,
then, in each such case, the Corporation shall mail to each holder of shares of
Series A Preferred Stock, at such holder's address as it appears on the transfer
books of the Corporation, a written notice of such proposed action, which shall
specify (A) the date on which a record is to be taken for the purpose of such
dividend or distribution of rights or warrants or, if a record is not to be
taken, the date as of which the holders of shares of Common Stock of record to
be entitled to such dividend or distribution of rights or warrants are to be
determined, or (B) the date on which such reclassification, consolidation,
merger, sale, conveyance, dissolution, liquidation or winding up is expected to
become effective, and such notice shall be so given as promptly as possible but
in any event at least ten Business Days prior to the applicable record,
determination or effective date, specified in such notice.

     (l)    Certain Remedies. Any registered holder of shares of Series A
            ----------------
Preferred Stock shall be entitled to an injunction or injunctions to prevent
breaches of the provisions of this Restated Certificate of Incorporation and to
enforce specifically the terms and provisions of this Restated Certificate of
Incorporation in any court of the United States or any state thereof having
jurisdiction, this being in addition to any other remedy to which such holder
may be entitled at law or in equity.

     4.4    Powers, Preferences and Rights of the Series B Preferred Stock. The
            --------------------------------------------------------------
Series B Preferred Stock shall rank on a parity with the Series A Preferred
Stock, and the powers, preferences and rights of the Series B Preferred Stock,
and the qualifications, limitations, and restrictions thereof, shall be
identical to those of the Series A Preferred Stock, except that (a) shares of
Series B Preferred Stock shall not be, pursuant to the terms of Section 4.3(i)
or otherwise, convertible into shares of Common Stock or any other security
issued by the Corporation, (b) the Corporation may redeem shares of Series B
Preferred Stock in accordance with the terms of Section 4.3(e) at any time
without regard to whether the redemption date is

                                      -11-
<PAGE>

before, on or after the date referred to in Section 4.3(e)(i), (c) shares of
Series B Preferred Stock may be issued by the Corporation in accordance with the
terms of Section 4.12, (d) holders of Series B Preferred Stock shall not,
pursuant to Section 4.3(d) or otherwise, have the right to elect any directors
of the Corporation and (e) the words "Series B Preferred Stock" and "Series A
Preferred Stock" shall be substituted for all references in Section 4.3 to
Series A Preferred Stock and Series B Preferred Stock, respectively.

     4.5    Powers, Preferences and Rights of the Series C Preferred Stock. The
            --------------------------------------------------------------
powers, preferences and rights of the Series C Preferred Stock and the
qualifications, limitations and restrictions thereof are as follows:

     (a)    Ranking. The Series C Preferred Stock shall rank (i) junior to the
            -------
Series A Preferred Stock and the Series B Preferred Stock with respect to the
payment of dividends and the distribution of assets on liquidation, dissolution
or winding up, (ii) junior to the Series D Preferred Stock with respect to the
distribution of assets on a Statutory Liquidation, (iii) on a parity with the
Series D Preferred Stock with respect to the distribution of assets on
liquidation, dissolution or winding up (other than on a Statutory Liquidation),
(iv) on a parity with the Series D Preferred Stock and the Common Stock with
respect to the payment of dividends, and (v) senior to the Common Stock and any
series or class of the Corporation's common or preferred stock, now or hereafter
authorized (other than Series A Preferred Stock, Series B Preferred Stock or
Series D Preferred Stock), with respect to the distribution of assets on
liquidation, dissolution and winding up.

     (b)    Dividends. Holders of Series C Preferred Stock shall be entitled to
            ---------
dividends in cash or property when, as and if, declared by the Board of
Directors of the Corporation; provided that, in no event shall dividends in
                              --------
excess of the Liquidation Preference be declared or paid.  So long as shares of
Series C Preferred Stock are outstanding or dividends payable on shares of
Series C Preferred Stock have not been paid in full in cash, the Corporation
shall not declare or pay cash dividends on, or redeem, purchase or otherwise
acquire for consideration, any shares of any class of common stock or series of
preferred stock ranking junior to or on a parity with the Series C Preferred
Stock, except that the Corporation may acquire, in accordance with the terms of
any agreement between the Corporation and its employees, shares of Common Stock
or Preferred Stock at a price not greater than the Market Price as of such date.
The Corporation shall not declare or pay cash dividends on, or redeem, purchase
or otherwise acquire for consideration, any shares of Series D Preferred Stock
unless concurrently therewith the Corporation shall declare or pay cash
dividends on, or redeem, purchase or otherwise acquire for consideration, as the
case may be, shares of Series C Preferred Stock ratably in accordance with the
number of shares of Series C Preferred Stock and Series D Preferred Stock then
outstanding.

     (c)    Liquidation Preference.

     (i)    In the event of any liquidation, dissolution or winding up of the
Corporation, the holders of Series C Preferred Stock shall be entitled to
receive out of the

                                      -12-
<PAGE>

assets of the Corporation, whether such assets are capital or surplus of any
nature, after payment is made to holders of all series of preferred stock
ranking senior to the Series C Preferred Stock with respect to rights on
liquidation, dissolution or winding up (including, in the case of a Statutory
Liquidation, the Series D Preferred Stock), but before any payment shall be made
or any assets distributed to the holders of Common Stock or any series of
preferred stock ranking junior to the Series C Preferred Stock with respect to
rights on liquidation, dissolution or winding up, an amount equal to the
Liquidation Preference and no more.

     (ii)   If upon any liquidation, dissolution or winding up of the
Corporation the assets of the Corporation to be distributed are insufficient to
permit the payment to all holders of Series C Preferred Stock and any other
series of preferred stock ranking on a parity with Series C Preferred Stock with
respect to rights on liquidation, dissolution or winding up (including, in the
case of a liquidation, dissolution or winding up other than a Statutory
Liquidation, the Series D Preferred Stock), to receive their full preferential
amounts, the entire assets of the Corporation shall be distributed among the
holders of Series C Preferred Stock and all such other series ratably in
accordance with their respective Liquidation Preference.

     (iii)  Neither the consolidation or merger of the Corporation with or into
any other Person nor the sale or other distribution to another Person of all or
substantially all the assets, property or business of the Corporation, shall be
deemed to be a liquidation, dissolution or winding up of the Corporation for
purposes of this Section 4.5(c).

     (d)    Voting Rights.
            -------------

     (i)    The holders of shares of Series C Preferred Stock shall not have any
right to vote on any matters to be voted on by the stockholders of the
Corporation, except as otherwise provided in paragraph (ii) below or as provided
by law, and the shares of Series C Preferred Stock shall not be included in
determining the number of shares voting or entitled to vote on any such matters
(other than the matters described in paragraph (ii) below or as otherwise
required by law).

     (ii)   The affirmative vote of holders of not less than a majority of
Series C Preferred Stock shall be required to (A) authorize, increase the
authorized number of shares of or issue (including on conversion or exchange of
any convertible or exchangeable securities or by reclassification) any shares of
any class or classes of stock ranking senior to or pari passu with the Series C
Preferred Stock or any additional shares of Series C Preferred Stock, (B)
authorize, adopt or approve each amendment to this Restated Certificate of
Incorporation that would increase or decrease the par value of the shares of
Series C Preferred Stock, alter or change the powers, preferences or rights of
the shares of Series C Preferred Stock or alter or change the powers,
preferences or rights of any other capital stock of the Corporation if such
alteration or change results in such capital stock ranking senior to or pari
passu with the Series C Preferred Stock, (C) amend, alter or repeal any
provision of this Restated Certificate of Incorporation so as to affect the
shares of Series C Preferred Stock adversely, or (D) authorize or issue any

                                      -13-
<PAGE>

security convertible into, exchangeable for or evidencing the right to purchase
or otherwise receive any shares of any class or classes of stock senior to or
pari passu with the Series C Preferred Stock.

     (e)    Conversion. The shares of Series C Preferred Stock shall be
            ----------
convertible into shares of Common Stock as follows:

     (i)    Optional Conversion. On the IPO Date, each share of Series C
            -------------------
Preferred Stock then outstanding shall be convertible, at the option of the
Corporation, into the number of fully paid and non-assessable shares of Common
Stock as is determined by dividing the Liquidation Preference of the Series C
Preferred Stock as of the IPO Date by the IPO Price; provided, that the
foregoing option, if exercised, shall be exercised with respect to all shares of
Series C Preferred Stock then outstanding.

     (ii)   Fractional Shares. No fractional shares of Common Stock shall be
            -----------------
issued upon conversion of shares of Series C Preferred Stock. In lieu of any
fractional share to which the holder would otherwise be entitled after
determination of the aggregate full number of shares of Common Stock issuable in
respect of the Series C Preferred Stock then being converted, the Corporation
shall pay cash equal to such fraction multiplied by the IPO Price.

     (iii)  Mechanics of Conversion. All holders of record of shares of Series C
            -----------------------
Preferred Stock will be given at least 30 but not more than 60 days' prior
written notice of the IPO Date and the place designated for conversion of all
shares of Series C Preferred Stock pursuant to this Section 4.5(e). Such notice
will be sent by first class or registered mail, postage prepaid, to each record
holder of Series C Preferred Stock at such holder's address last shown on the
records of the transfer agent for the Series C Preferred Stock (or the records
of the Corporation if it serves as its own transfer agent). Within ten days
after the date of such notice, each holder of shares of Series C Preferred Stock
shall notify the Corporation as to whether it desires to receive shares of Class
A Common Stock or Class B Common Stock. Any holder who fails to give such notice
shall be deemed to have selected Class A Common Stock. On or before the IPO
Date, each holder of shares of Series C Preferred Stock shall surrender his or
its certificate(s) for all such shares to the Corporation at the place
designated in such notice. If required by the Corporation, certificates
surrendered for conversion shall be endorsed or accompanied by a written
instrument or instruments of transfer, in form satisfactory to the Corporation,
duly executed by the registered holder or his or its attorney duly authorized in
writing. As soon as practicable after the IPO Date and the surrender of the
certificate(s) representing shares of Series C Preferred Stock, the Corporation
shall issue and deliver to such holder, or on his or its written order to his or
its nominees, one or more certificates for the number of whole shares of Common
Stock issuable upon such conversion in accordance with the provisions hereof,
together with cash in lieu of fractional shares calculated in accordance with
paragraph (ii) above.

     (iv)   Reservation of Shares. The Corporation shall at all times when the
            ----------------------
Series C Preferred Stock shall be outstanding, reserve and keep available out of
its authorized

                                      -14-
<PAGE>

but unissued stock, for the purpose of effecting the conversion of the Series C
Preferred Stock, such number of its duly authorized shares of Common Stock as
shall from time to time be sufficient to effect the conversion of all
outstanding shares of Series C Preferred Stock. Before taking any action which
would cause Common Stock, upon the conversion of Series C Preferred Stock, to be
issued below the then par value of the shares of Common Stock, the Corporation
will take any corporate action that may, in the opinion of its counsel, be
necessary in order that the Corporation may validly and legally issue fully paid
and non-assessable shares of Common Stock to the holders of Series C Preferred
Stock.

     (v)    Termination of Rights. All shares of Series C Preferred Stock which
            ---------------------
are subject to conversion pursuant to this paragraph (e), which have not been
surrendered prior to the IPO Date, shall no longer be deemed to be outstanding
and all rights with respect to such shares, including the rights, if any, to
receive notices and to vote, shall immediately cease and terminate on the IPO
Date, except only the right of the holders thereof to receive shares of Common
Stock in exchange therefor. On and as of the IPO Date, the shares of Common
Stock issuable upon such conversion shall be deemed to be outstanding, and the
holder thereof shall be entitled to exercise and enjoy all rights with respect
to such shares of Common Stock, including the rights, if any, to receive notices
and to vote. Shares of Series C Preferred Stock converted into Common Stock will
be restored to the status of authorized but unissued shares of preferred stock
without designation as to series, and may thereafter be issued, whether or not
designated as shares of Series C Preferred Stock.

     (vi)   No Conversion Charge or Tax. The issuance and delivery of
            ---------------------------
certificates for shares of Common Stock upon the conversion of shares of Series
C Preferred Stock shall be made without charge to the holder of shares of Series
C Preferred Stock for any issue or transfer tax, or other incidental expense in
respect of the issuance or delivery of such certificates or the securities
represented thereby, all of which taxes and expenses shall be paid by the
Corporation.

     (vii)  Reservation of Class A Common Stock. The Corporation shall at all
            -----------------------------------
times reserve and keep available for issuance upon the conversion of the shares
of Series C Preferred Stock the maximum number of its authorized but unissued
shares of Class A Common Stock as is reasonably anticipated to be sufficient to
permit the conversion of all outstanding shares of Series C Preferred Stock, and
shall take all action required to increase the authorized number of shares of
Class A Common Stock if at any time there shall be insufficient authorized but
unissued shares of Class A Common Stock to permit such reservation or to permit
the conversion of all outstanding shares of Series C Preferred Stock.

     (f)    Redemption at Option of the Corporation. The Corporation shall have
            ---------------------------------------
the right to redeem shares of Series C Preferred Stock pursuant to the following
provisions:

     (i)    Subject to the restrictions set forth in Section 4.5(h)(i), the
Corporation shall have the right, at its sole option and election, to redeem the
shares of the Series C

                                      -15-
<PAGE>

Preferred Stock, in whole but not in part, at any time at a redemption price per
share equal to the Liquidation Preference thereof as of the redemption date;
provided, that concurrently with such redemption, the Corporation shall redeem
the shares of Series D Preferred Stock, in whole and not in part, at a
redemption price per share equal to the Liquidation Preference thereof as of the
redemption date; provided, further, that if the funds legally available to the
Corporation are insufficient to effect the redemption of the Series C Preferred
Stock and the Series D Preferred Stock in full, such funds shall be allocated
among the shares of Series C Preferred Stock and Series D Preferred Stock
ratably in accordance with the number of shares of each Series outstanding as of
the redemption date;

     (ii)   Notice of any redemption of the Series C Preferred Stock and Series
D Preferred Stock shall be mailed at least ten but not more than 60 days prior
to the date fixed for redemption to each holder of Series C Preferred Stock and
Series D Preferred Stock to be redeemed, at such holder's address as it appears
on the books of the Corporation. In order to facilitate the redemption of the
Series C Preferred Stock and Series D Preferred Stock, the Board of Directors
may fix a record date for the determination of holders of Series C Preferred
Stock and Series D Preferred Stock to be redeemed, or may cause the transfer
books of the Corporation to be closed for the transfer of the Series C Preferred
Stock and Series D Preferred Stock, not more than 60 days prior to the date
fixed for such redemption;

     (iii)  Within two Business Days after the redemption date specified in the
notice given pursuant to paragraph (ii) above and the surrender of the
certificate(s) representing shares of Series C Preferred Stock or Series D
Preferred Stock, as the case may be, the Corporation shall pay to the holder of
the shares being redeemed the Series C Redemption Price or the Series D
Redemption Price therefor.  Such payment shall be made by wire transfer of
immediately available funds to an account designated by such holder or by
overnight delivery (by a nationally recognized courier) of a bank check to such
holder's address as it appears on the books of the Corporation; and

     (iv)   Effective upon the date of the notice given pursuant to paragraph
(ii) above, notwithstanding that any certificate for such shares shall not have
been surrendered for cancellation, the shares represented thereby shall no
longer be deemed outstanding, the rights to receive dividends thereon shall
cease to accrue from and after the date of redemption designated in the notice
of redemption and all rights of the holders of the shares of the Series C
Preferred Stock or Series D Preferred Stock, as the case may be, called for
redemption shall cease and terminate, excepting only the right to receive the
Series C Redemption Price or the Series D Redemption Price therefor in
accordance with paragraph (iii) above.

     (g)    Redemption at Option of Holder.
            ------------------------------

     (i)    No holder of shares of Series C Preferred Stock shall have any right
to require the Corporation to redeem any shares of Series C Preferred Stock
prior to, with respect to any share of Series C Preferred Stock, the 30th day
after the twentieth

                                      -16-
<PAGE>

anniversary of the issuance of such share. Thereafter, subject to the
restrictions set forth in Section 4.5(h)(i), each holder of shares of Series C
Preferred Stock shall have the right, at the sole option and election of such
holder, to require the Corporation to redeem all (but not less than all) of the
shares of Series C Preferred Stock owned by such holder at a price per share
equal to the Series C Redemption Price;

     (ii)   The holder of any shares of the Series C Preferred Stock may
exercise such holder's right to require the Corporation to redeem such shares by
surrendering for such purpose to the Corporation, at its principal office or at
such other office or agency maintained by the Corporation for that purpose,
certificates representing the shares of Series C Preferred Stock to be redeemed,
accompanied by a written notice stating that such holder elects to require the
Corporation to redeem all (but not less than all) of such shares in accordance
with the provisions of this Section 4.5(g), which notice may specify an account
for delivery of the Series C Redemption Price;

     (iii)  Within two Business Days after the surrender of such certificates,
the Corporation shall pay to the holder of the shares being redeemed the Series
C Redemption Price therefor. Such payment shall be made by wire transfer of
immediately available funds to an account designated by such holder or by
overnight delivery (by a nationally recognized courier) of a bank check to such
holder's address as it appears on the books of the Corporation; and

     (iv)   Such redemptions shall be deemed to have been made at the close of
business on the date of the receipt of such notice and of such surrender of the
certificates representing the shares of the Series C Preferred Stock to be
redeemed and the rights of the holder thereof, except for the right to receive
the Series C Redemption Price therefor in accordance herewith, shall cease on
such date of receipt and surrender.

     (h)    Certain Restrictions.
            --------------------

     (i)    Notwithstanding the provisions of Sections 4.5(b), (e) or (f), cash
dividends on the Series C Preferred Stock may not be declared, paid or set apart
for payment, nor may the Corporation redeem, purchase or otherwise acquire any
shares of Series C Preferred Stock, if (A) the Corporation is not solvent or
would be rendered insolvent thereby or (B) at such time the terms and provisions
of any law or agreement of the Corporation, including any agreement relating to
its indebtedness, specifically prohibit such declaration, payment or setting
apart for payment or such redemption, purchase or other acquisition, or provide
that such declaration, payment or setting apart for payment or such redemption,
purchase or other acquisition would constitute a violation or breach thereof or
a default thereunder.

     (ii)   So long as shares of Series C Preferred Stock are outstanding or
dividends payable on shares of Series C Preferred Stock have not been paid in
full in cash, the Corporation shall not declare or pay cash dividends on, or
redeem, purchase or otherwise acquire for consideration, any shares of Common
Stock or other shares of capital stock of the Corporation ranking junior to or
on a parity basis with the Series C Preferred Stock,

                                      -17-
<PAGE>

except with the prior written consent of holders of a majority of the
outstanding shares of Series C Preferred Stock, except that the Corporation may
acquire, in accordance with the terms of any agreement between the Corporation
and its employees, shares of Common Stock from its employees at a price equal to
such employee's purchase price therefor without such consent.

     (iii)  The Corporation shall not permit any Subsidiary of the Corporation,
or cause any other Person, to make any distribution with respect to, or purchase
or otherwise acquire for consideration, any shares of Common Stock or other
shares of capital stock of the Corporation ranking junior to or on a parity
basis with the Series C Preferred Stock unless the Corporation could, pursuant
to paragraph (i) above, make such distribution or purchase or otherwise acquire
such shares at such time and in such manner.

     4.6    Powers, Preferences and Rights of the Series D Preferred Stock.
            --------------------------------------------------------------

     (a)    General. The powers, preferences and rights of the Series D
            -------
Preferred Stock, and the qualifications, limitations, and restrictions thereof,
shall be identical to those of the Series C Preferred Stock, except that (i) the
Series D Preferred Stock shall rank with respect to the other series and classes
of capital stock of the Corporation as provided in paragraph (b) below, (ii) the
Series D Preferred Stock shall not be convertible into Common Stock, but shall
be convertible into Senior Common Stock as provided in paragraph (c) below,
(iii) the shares of Series D Preferred Stock shall be subject to redemption, pro
rata with the Series C Preferred Stock, in accordance with Section 4.5(f), and
(iv) the words "Series D Preferred Stock" and "Series C Preferred Stock" shall
be substituted for all references in Section 4.5 to Series C Preferred Stock and
Series D Preferred Stock, respectively.

     (b)    Ranking. The Series D Preferred Stock shall rank (i) junior to the
            -------
Series A Preferred Stock and the Series B Preferred Stock with respect to the
payment of dividends and the distribution of assets on liquidation, dissolution
or winding up, (ii) senior to the Series C Preferred Stock with respect to the
distribution of assets on a Statutory Liquidation, (iii) on a parity with the
Series C Preferred Stock with respect to the distribution of assets on
liquidation, dissolution or winding up (other than on a Statutory Liquidation),
(iv) on a parity with the Series C Preferred Stock and the Common Stock with
respect to the payment of dividends, and (v) senior to the Common Stock and any
series or class of the Corporation's common or preferred stock, now or hereafter
authorized (other than Series A Preferred Stock, Series B Preferred Stock or
Series C Preferred Stock), with respect to the distribution of assets on
liquidation, dissolution and winding up.

     (c)    Conversion. In the event that the shares of Series C Preferred
            ----------
Stock are Stock are converted into shares of Common Stock in accordance with
Section 4.5(e), the shares of Series D Preferred Stock shall be convertible into
shares of Senior Common Stock as follows:

     (i)    Automatic Conversion. On the IPO Date, each share of Series D
            --------------------
Preferred

                                      -18-
<PAGE>

Stock then outstanding shall automatically be converted into a number of fully
paid and non-assessable shares of Senior Common Stock as is determined by
dividing the Liquidation Preference of the Series D Preferred Stock as of the
IPO Date by the IPO Price.

     (ii)   Fractional Shares. No fractional shares of Senior Common Stock
            -----------------
shall be issued upon conversion of shares of Series D Preferred Stock. In lieu
of any fractional share to which the holder would otherwise be entitled after
determination of the aggregate full number of shares of Senior Common Stock
issuable in respect of the Series D Preferred Stock then being converted, the
Corporation shall pay cash equal to such fraction multiplied by the Liquidation
Preference of the Series D Preferred Stock.

     (iii)  Mechanics of Conversion. All holders of record of shares of Series D
            -----------------------
Preferred Stock will be given at least 30 but not more than 60 days' prior
written notice of the IPO Date and the place designated for conversion of all
shares of Series D Preferred Stock pursuant to this Section 4.6(c).  Such notice
will be sent by first class or registered mail, postage prepaid, to each record
holder of Series D Preferred Stock at such holder's address last shown on the
records of the transfer agent for the Series D Preferred Stock (or the records
of the Corporation if it serves as its own transfer agent).  On or before the
IPO Date, each holder of shares of Series D Preferred Stock shall surrender his
or its certificate(s) for all such shares to the Corporation at the place
designated in such notice.  If required by the Corporation, certificates
surrendered for conversion shall be endorsed or accompanied by a written
instrument or instruments of transfer, in form satisfactory to the Corporation,
duly executed by the registered holder or his or its attorney duly authorized in
writing.  As soon as practicable after the IPO Date and the surrender of the
certificate(s) representing shares of Series D Preferred Stock, the Corporation
shall issue and deliver to such holder, or on his or its written order to his or
its nominees, one or more certificates for the number of shares of Senior Common
Stock issuable upon such conversion in accordance with the provisions hereof.

     (iv)   Reservation of Shares. The Corporation shall at all times when the
            ---------------------
Series D Preferred Stock shall be outstanding, reserve and keep available out of
its authorized but unissued stock, for the purpose of effecting the conversion
of the Series D Preferred Stock, such number of its duly authorized shares of
Senior Common Stock as shall from time to time be sufficient to effect the
conversion of all outstanding shares of Series D Preferred Stock.  Before taking
any action which would cause Senior Common Stock, upon the conversion of Series
D Preferred Stock, to be issued below the then par value of the shares of Senior
Common Stock, the Corporation will take any corporate action that may, in the
opinion of its counsel, be necessary in order that the Corporation may validly
and legally issue fully paid and non-assessable shares of Senior Common Stock to
the holders of Series D Preferred Stock.

     (v)    Adjustments for Dividends. Upon any conversion of Series D Preferred
            -------------------------
Stock, no adjustment to the conversion ratio shall be made for declared and
unpaid dividends on the Series D Preferred Stock surrendered for conversion or
on the Senior Common Stock delivered upon conversion.

                                      -19-
<PAGE>

     (vi)   Termination of Rights. All shares of Series D Preferred Stock which
            ---------------------
shall be subject to conversion as herein provided, which have not been so
surrendered prior to the IPO Date, shall no longer be deemed to be outstanding
and all rights with respect to such shares, including the rights, if any, to
receive notices and to vote, shall immediately cease and terminate on the IPO
Date, except only the right of the holders thereof to receive shares of Senior
Common Stock in exchange therefor and payment of any declared and unpaid
dividends thereon.  On and as of the IPO Date, the shares of Senior Common Stock
issuable upon such conversion shall be deemed to be outstanding, and the holder
thereof shall be entitled to exercise and enjoy all rights with respect to such
shares of Senior Common Stock, including the rights, if any, to receive notices
and to vote.  Shares of Series D Preferred Stock converted into Senior Common
Stock will be restored to the status of authorized but unissued shares of
preferred stock without designation as to series, and may thereafter be issued,
whether or not designated as shares of Series D Preferred Stock.

     (vii)  No Conversion Charge or Tax. The issuance and delivery of
            ---------------------------
certificates for shares of Senior Common Stock upon the conversion of shares of
Series D Preferred Stock shall be made without charge to the holder of shares of
Series D Preferred Stock for any issue or transfer tax, or other incidental
expense in respect of the issuance or delivery of such certificates or the
securities represented thereby, all of which taxes and expenses shall be paid by
the Corporation.

     4.7    Powers, Preferences and Rights of the Series E Preferred Stock. The
            --------------------------------------------------------------
powers, preferences and rights of the Series E Preferred Stock, and the
qualifications, limitations and restrictions thereof, shall be identical to
those of the Series C Preferred Stock, except that (a) the Series E Preferred
Stock shall rank, with respect to the payment of dividends and the distribution
of assets on liquidation, dissolution or winding up, (i) junior to the Series A
Preferred Stock, Series B Preferred Stock, Series C Preferred Stock and Series D
Preferred Stock and (ii) senior to the Series F Preferred Stock, Senior Common
Stock and the Common Stock and any series or class of the Corporation's common
or preferred stock, now or hereafter authorized (other than the Series A
Preferred Stock, Series B Preferred Stock, Series C Preferred Stock or Series D
Preferred Stock), (b) the provisos to Section 4.5(f)(i) shall not apply to a
redemption of the Series E Preferred Stock, and (c) the words "Series E
Preferred Stock" and "Series C Preferred Stock" shall be substituted for all
references in Section 4.5 to Series C Preferred Stock and Series E Preferred
Stock, respectively.

     4.8    Powers, Preferences and Rights of the Series F Preferred Stock. The
            --------------------------------------------------------------
powers, preferences and rights of the Series F Preferred Stock, and the
qualifications, limitations and restrictions thereof are as follows:

     (a)    Ranking. The Series F Preferred Stock shall rank (i) junior to the
            -------
Series A Preferred Stock, the Series B Preferred Stock, the Series C Preferred
Stock, the Series D Preferred Stock and the Series E Preferred Stock with
respect to the payment of dividends and the distribution of assets on
liquidation, dissolution or winding up, (ii) on a parity with the Senior Common
Stock with respect to the payment of dividends and the distribution of assets on
liquidation, dissolution or winding up, (iii) on a parity with the

                                      -20-
<PAGE>

Common Stock with respect to the distribution of assets on liquidation,
dissolution or winding up (other than on a Statutory Liquidation), (iv) senior
to the Common Stock with respect to the distribution of assets on a Statutory
Liquidation (v) on a parity with the Common Stock with respect to the payment of
dividends, and (vi) senior to any series or class of the Corporation's common or
preferred stock hereafter authorized (other than Series A Preferred Stock,
Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock,
Series E Preferred Stock, Senior Common Stock or Common Stock), with respect to
the payment of dividends and the distribution of assets on liquidation,
dissolution and winding up.

     (b)    Dividends. Holders of Series F Preferred Stock shall be entitled to
            ---------
dividends in cash or property when, as and if, declared by the Board of
Directors of the Corporation.

     (c)    Liquidation Preference.
            ----------------------

     (i)    In the event of any liquidation, dissolution or winding up of the
Corporation, the holders of Series F Preferred Stock shall be entitled to
receive out of the assets of the Corporation, whether such assets are capital or
surplus of any nature, after payment is made to holders of all series of
preferred stock ranking senior to the Series F Preferred Stock with respect to
rights on liquidation, dissolution or winding up, but before any payment shall
be made or any assets distributed to the holders of Common Stock or any series
of preferred stock ranking junior to the Series F Preferred Stock with respect
to rights on liquidation, dissolution or winding up, an amount equal to the
Liquidation Preference and no more.

     (ii)   If upon any liquidation, dissolution or winding up of the
Corporation the assets of the Corporation to be distributed are insufficient to
permit the payment to all holders of Series F Preferred Stock and any other
series of preferred stock ranking on a parity with Series F Preferred Stock with
respect to rights on liquidation, dissolution or winding up, to receive their
full preferential amounts, the entire assets of the Corporation shall be
distributed among the holders of Series F Preferred Stock and all such other
series ratably in accordance with their respective Liquidation Preference.

     (iii)  After payment to the holders of Series F Preferred Stock of the
amounts set forth in paragraph (i) above, the entire remaining assets and funds
of the Corporation legally available for distribution, if any, shall be
distributed among the holders of the Participating Stock in proportion to the
shares of Participating Stock then held by them as of the date of the
liquidation, dissolution or winding up of the Corporation.

     (iv)   Neither the consolidation or merger of the Corporation with or into
any other Person nor the sale or other distribution to another Person of all or
substantially all the assets, property or business of the Corporation, shall be
deemed to be a liquidation, dissolution or winding up of the Corporation for
purposes of this Section 4.8(c).

                                      -21-
<PAGE>

     (d)    Voting Rights.
            -------------

     (i)    The holders of shares of Series F Preferred Stock shall not have any
right to vote on any matters to be voted on by the stockholders of the
Corporation, except as otherwise provided in paragraph (ii) below or as provided
by law, and the shares of Series F Preferred Stock shall not be included in
determining the number of shares voting or entitled to vote on any such matters
(other than the matters described in paragraph (ii) below or as otherwise
required by law).

     (ii)   The affirmative vote of holders of not less than a majority of
Series F Preferred Stock shall be required to (A) authorize, increase the
authorized number of shares of or issue (including on conversion or exchange of
any convertible or exchangeable securities or by reclassification) any shares of
any class or classes of stock ranking senior to or pari passu with the Series F
Preferred Stock or any additional shares of Series F Preferred Stock, (B)
authorize, adopt or approve each amendment to this Restated Certificate of
Incorporation that would increase or decrease the par value of the shares of
Series F Preferred Stock, alter or change the powers, preferences or rights of
the shares of Series F Preferred Stock or alter or change the powers,
preferences or rights of any other capital stock of the Corporation if such
alteration or change results in such capital stock ranking senior to or pari
passu with the Series F Preferred Stock, (C) amend, alter or repeal any
provision of this Restated Certificate of Incorporation so as to affect the
shares of Series F Preferred Stock adversely, or (D) authorize or issue any
security convertible into, exchangeable for or evidencing the right to purchase
or otherwise receive any shares of any class or classes of stock senior to or
pari passu with the Series F Preferred Stock.

     (e)    Conversion. The shares of Series F Preferred Stock shall be
            ----------
convertible into shares of Common Stock or Senior Common Stock as follows:

     (i)    Optional Conversion. Each share of Series F Preferred Stock shall be
            -------------------
convertible, at the option of the holder thereof, at any time and from time to
time, into one fully paid and non-assessable share of Non-Tracked Common Stock;
provided that, unless and until the Tracked Common Stock shall be convertible
into Class A Common Stock or Class B Common Stock in accordance with Section
4.10(e)(iii), each of the first 631.27 shares of Series F Preferred Stock
converted pursuant to this paragraph shall be convertible into one fully paid
and non-assessable share of Class D Common Stock.

     (ii)   Automatic Conversion. In the event that the Series C Preferred Stock
            --------------------
is converted into Common Stock in accordance with Section 4.5(e), then on the
IPO Date, each share of Series F Preferred Stock then outstanding shall
automatically be converted into one fully paid and non-assessable share of
Senior Common Stock.

     (iii)  Mechanics of Optional Conversion. In order for a holder of Series F
            --------------------------------
Preferred Stock to convert such shares into shares of Common Stock, such holder
shall surrender the certificate(s) for such shares of Series F Preferred Stock
at the office of the transfer agent for the Series F Preferred Stock (or if the
Corporation serves as its own

                                      -22-
<PAGE>

transfer agent, at the principal office of the Corporation), together with
written notice that such holder elects to convert all or any number of the
shares of the Series F Preferred Stock represented by such certificate(s). If
required by the Corporation, certificates surrendered for conversion shall be
endorsed or accompanied by a written instrument or instruments of transfer, in
form satisfactory to the Corporation, duly executed by the registered holder or
his or its attorney duly authorized in writing. The date of receipt of such
certificates and notice by the transfer agent (or by the Corporation if the
Corporation serves as its own transfer agent) shall be the conversion date (the
"Optional Conversion Date"). The Corporation shall, within ten Business Days
 ------------------------
after the Optional Conversion Date, issue and deliver at such office to such
holder of Series F Preferred Stock, or to his or its nominees, one or more
certificates for the number of whole shares of Common Stock (and any shares of
Series F Preferred Stock represented by the certificate delivered to the
Corporation by the holder thereof that are not converted into Common Stock)
issuable upon such conversion in accordance with the provisions hereof.

     (iv)   Mechanics of Automatic Conversion. All holders of record of shares
            ---------------------------------
of Series F Preferred Stock will be given at least 30 but not more than 60 days'
prior written notice of the IPO Date and the place designated for conversion of
all shares of Series F Preferred Stock pursuant to this Section 4.8(e).  Such
notice will be sent by first class or registered mail, postage prepaid, to each
record holder of Series F Preferred Stock at such holder's address last shown on
the records of the transfer agent for the Series F Preferred Stock (or the
records of the Corporation if it serves as its own transfer agent).  On or
before the IPO Date, each holder of shares of Series F Preferred Stock shall
surrender his or its certificate(s) for all such shares to the Corporation at
the place designated in such notice.  If required by the Corporation,
certificates surrendered for conversion shall be endorsed or accompanied by a
written instrument or instruments of transfer, in form satisfactory to the
Corporation, duly executed by the registered holder or his or its attorney duly
authorized in writing.  As soon as practicable after the IPO Date and the
surrender of the certificates representing shares of Series F Preferred Stock,
the Corporation shall issue and deliver to such holder, or on his or its written
order to his or its nominees, one or more certificates for the number of whole
shares of Senior Common Stock issuable upon such conversion in accordance with
the provisions hereof.

     (v)    Reservation of Shares. The Corporation shall at all times when the
            ---------------------
Series F Preferred Stock shall be outstanding, reserve and keep available out of
its authorized but unissued stock, for the purpose of effecting the conversion
of the Series F Preferred Stock, such number of its duly authorized shares of
Common Stock and Senior Common Stock as shall from time to time be sufficient to
effect the conversion of all outstanding shares of Series F Preferred Stock.
Before taking any action which would cause Common Stock or Senior Common Stock,
upon the conversion of Series F Preferred Stock, to be issued below the then par
value of the shares of Common Stock or Senior Common Stock, as the case may be,
the Corporation will take any corporate action that may, in the opinion of its
counsel, be necessary in order that the Corporation may validly and legally
issue fully paid and non-assessable shares of Common Stock or Senior Common
Stock, as the case may be, to the holders of Series F Preferred Stock.

                                      -23-
<PAGE>

     (vi)   Adjustments for Dividends. Upon any conversion of Series F Preferred
            -------------------------
Stock, no adjustment to the conversion ratio shall be made for declared and
unpaid dividends on the Series F Preferred Stock surrendered for conversion or
on the Common Stock or Senior Common Stock delivered upon conversion.

     (vii)  Termination of Rights. All shares of Series F Preferred Stock which
            ---------------------
shall have been surrendered for conversion as herein provided or, as to shares
of Series F Preferred Stock which are subject to automatic conversion pursuant
to paragraph (ii) above, which have not been so surrendered prior to the IPO
Date, shall no longer be deemed to be outstanding and all rights with respect to
such shares, including the rights, if any, to receive notices and to vote, shall
immediately cease and terminate on the Optional Conversion Date or the IPO Date,
as the case may be, except only the right of the holders thereof to receive
shares of Common Stock or Senior Common Stock, as the case may be, in exchange
therefor and payment of any declared and unpaid dividends thereon.  On and as of
the Optional Conversion Date or the IPO Date, the shares of Common Stock or
Senior Common Stock, as the case may be, issuable upon such conversion shall be
deemed to be outstanding, and the holder thereof shall be entitled to exercise
and enjoy all rights with respect to such shares of Common Stock or Senior
Common Stock, including the rights, if any, to receive notices and to vote.
Shares of Series F Preferred Stock converted into Common Stock or Senior Common
Stock will be restored to the status of authorized but unissued shares of Common
Stock or preferred stock without designation as to class or series, and may
thereafter be issued, whether or not designated as shares of Class A Common
Stock or Series F Preferred Stock.

     (viii) No Conversion Charge or Tax. The issuance and delivery of
            ---------------------------
certificates for shares of Common Stock or Senior Common Stock upon the
conversion of shares of Series F Preferred Stock shall be made without charge to
the holder of shares of Series F Preferred Stock for any issue or transfer tax,
or other incidental expense in respect of the issuance or delivery of such
certificates or the securities represented thereby, all of which taxes and
expenses shall be paid by the Corporation.

     (ix)   Reorganization, Reclassification and Merger Adjustment. If there
            ------------------------------------------------------
occurs any capital reorganization or any reclassification of the Common Stock of
the Corporation, the consolidation or merger of the Corporation with or into
another Person (other than a merger or consolidation of the Corporation in which
the Corporation is the continuing corporation and which does not result in any
reclassification or change of outstanding shares of its Common Stock) or the
sale or conveyance of all or substantially all of the assets of the Corporation
to another Person, then each share of Series F Preferred Stock shall thereafter
be convertible into the same kind and amounts of securities (including shares of
stock) or other assets, or both, which were issuable or distributable to the
holders of outstanding Common Stock of the Corporation upon such reorganization,
reclassification, consolidation, merger, sale or conveyance, in respect of that
number of shares of Common Stock into which such share of Series F Preferred
Stock might have been converted immediately prior to such reorganization,
reclassification, consolidation, merger, sale or conveyance; and, in any such
case, appropriate adjustments (as determined in good faith by the Board of
Directors of the

                                      -24-
<PAGE>

Corporation, whose determination shall be conclusive) shall be made to assure
that the provisions set forth herein shall thereafter be applicable, as nearly
as reasonably may be practicable, in relation to any securities or other assets
thereafter deliverable upon the conversion of the Series F Preferred Stock.

     (f)    Certain Restrictions.
            --------------------

     (i)    Notwithstanding the provisions of Sections 4.8(b), cash dividends on
the Series F Preferred Stock may not be declared, paid or set apart for payment,
nor may the Corporation redeem, purchase or otherwise acquire any shares of
Series F Preferred Stock, if (A) the Corporation is not solvent or would be
rendered insolvent thereby or (B) at such time the terms and provisions of any
law or agreement of the Corporation, including any agreement relating to its
indebtedness, specifically prohibit such declaration, payment or setting apart
for payment or such redemption, purchase or other acquisition, or provide that
such declaration, payment or setting apart for payment or such redemption,
purchase or other acquisition would constitute a violation or breach thereof or
a default thereunder.

     (ii)   The Corporation shall not permit any Subsidiary of the Corporation,
or cause any other Person, to make any distribution with respect to, or purchase
or otherwise acquire for consideration, any shares of Common Stock or other
shares of capital stock of the Corporation ranking junior to or on a parity
basis with the Series F Preferred Stock unless the Corporation could, pursuant
to paragraph (i) above, make such distribution or purchase or otherwise acquire
such shares at such time and in such manner.

     (g)    Redemption. The Series F Preferred Stock is not redeemable.
            ----------

     (h)    Sinking Fund. There shall be no sinking fund for the payment of
            ------------
dividends or Liquidation Preferences on the Series F Preferred Stock.

     4.9    Powers, Preferences and Rights of the Senior Common Stock. The
            ---------------------------------------------------------
powers, preferences and rights of the Senior Common Stock, and the
qualifications, limitations and restrictions thereof are as follows:

     (a)    Ranking. The Senior Common Stock shall rank, with respect to the
            -------
payment of dividends and the distribution of assets on liquidation, dissolution
or winding up, (i) junior to the Series A Preferred Stock, Series B Preferred
Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred
Stock, (ii) on a parity with the Series F Preferred Stock, and (iii) senior to
the Common Stock and any series or class of the Corporation's common or
preferred stock, now or hereafter authorized (other than the Series A Preferred
Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred
Stock, Series E Preferred Stock or Series F Preferred Stock).

     (b)    Dividends. Holders of Senior Common Stock shall be entitled to
            ---------
dividends in cash or property when, as and if, declared by the Board of
Directors of the Corporation.

                                      -25-
<PAGE>

     (c)    Liquidation Preference.
            ----------------------

     (i)    In the event of any liquidation, dissolution or winding up of the
Corporation, the holders of Senior Common Stock shall be entitled to receive out
of the assets of the Corporation, whether such assets are capital or surplus of
any nature, after payment is made to holders of all series of preferred stock
ranking senior to the Senior Common Stock with respect to rights on liquidation,
dissolution or winding up, but before any payment shall be made or any assets
distributed to the holders of Common Stock or any series of preferred stock
ranking junior to the Senior Common Stock with respect to rights on liquidation,
dissolution or winding up, an amount equal to the Liquidation Preference and no
more.

     (ii)   If upon any liquidation, dissolution or winding up of the
Corporation the assets of the Corporation to be distributed are insufficient to
permit the payment to all holders of Senior Common Stock and any other series of
preferred stock ranking on a parity with Senior Common Stock with respect to
rights on liquidation, dissolution or winding up, to receive their full
preferential amounts, the entire assets of the Corporation shall be distributed
among the holders of Senior Common Stock and all such other series ratably in
accordance with their respective Liquidation Preference.

     (iii)  After payment to the holders of Senior Common Stock of the amounts
set forth in paragraph (i) above, the entire remaining assets and funds of the
Corporation legally available for distribution, if any, shall be distributed
among the holders of the Participating Stock in proportion to the shares of
Participating Stock then held by them as of the date of the liquidation,
dissolution or winding up of the Corporation.

     (iv)   Neither the consolidation or merger of the Corporation with or into
any other Person nor the sale or other distribution to another Person of all or
substantially all the assets, property or business of the Corporation, shall be
deemed to be a liquidation, dissolution or winding up of the Corporation for
purposes of this Section 4.9(c).

     (d)    Voting Rights.
            -------------

     (i)    The holders of shares of Senior Common Stock shall not have any
right to vote on any matters to be voted on by the stockholders of the
Corporation, except as otherwise provided in paragraph (ii) below or as provided
by law, and the shares of Senior Common Stock shall not be included in
determining the number of shares voting or entitled to vote on any such matters
(other than the matters described in paragraph (ii) below or as otherwise
required by law).

     (ii)   The affirmative vote of holders of not less than a majority of
Senior Common Stock shall be required to (A) authorize, increase the authorized
number of shares of or issue (including on conversion or exchange of any
convertible or exchangeable securities or by reclassification) any shares of any
class or classes of stock ranking senior to or pari passu with the Senior Common
Stock or any additional shares of Senior Common Stock, (B) authorize, adopt or
approve each amendment to this Restated

                                      -26-
<PAGE>

Certificate of Incorporation that would increase or decrease the par value of
the shares of Senior Common Stock, alter or change the powers, preferences or
rights of the shares of Senior Common Stock or alter or change the powers,
preferences or rights of any other capital stock of the Corporation if such
alteration or change results in such capital stock ranking senior to or pari
passu with the Senior Common Stock, (C) amend, alter or repeal any provision of
this Restated Certificate of Incorporation so as to affect the shares of Senior
Common Stock adversely, or (D) authorize or issue any security convertible into,
exchangeable for or evidencing the right to purchase or otherwise receive any
shares of any class or classes of stock senior to or pari passu with the Senior
Common Stock.

     (e)    Conversion. The shares of Senior Common Stock shall be convertible
            ----------
into shares of Common Stock as follows:

     (i)    Optional Conversion. Each share of Senior Common Stock shall be
            -------------------
convertible, at the option of the holder thereof, at any time and from time to
time, into one fully paid and non-assessable share of Non-Tracked Common Stock;
provided that, unless and until the Tracked Common Stock shall be convertible
into Class A Common Stock or Class B Common Stock in accordance with Section
4.10(e)(iii), each of the first 631.27 shares of Senior Common Stock converted
pursuant to this paragraph shall be convertible into one fully paid and non-
assessable share of Class D Common Stock.

     (ii)   Mechanics of Optional Conversion. In order for a holder of Senior
            --------------------------------
Common Stock to convert such shares into shares of Common Stock, such holder
shall surrender the certificate(s) for such shares of Senior Common Stock at the
office of the transfer agent for the Senior Common Stock (or if the Corporation
serves as its own transfer agent, at the principal office of the Corporation),
together with written notice that such holder elects to convert all or any
number of the shares of the Senior Common Stock represented by such
certificate(s). If required by the Corporation, certificates surrendered for
conversion shall be endorsed or accompanied by a written instrument or
instruments of transfer, in form satisfactory to the Corporation, duly executed
by the registered holder or his or its attorney duly authorized in writing. The
date of receipt of such certificates and notice by the transfer agent (or by the
Corporation if the Corporation serves as its own transfer agent) shall be the
conversion date. The Corporation shall, within ten Business Days after the
conversion date, issue and deliver at such office to such holder of Senior
Common Stock, or to his or its nominees, one or more certificates for the number
of whole shares of Common Stock (and any shares of Senior Common Stock
represented by the certificate delivered to the Corporation by the holder
thereof that are not converted into Common Stock) issuable upon such conversion
in accordance with the provisions hereof.

     (iii)  Reservation of Shares. The Corporation shall at all times when the
            ---------------------
Senior Common Stock shall be outstanding, reserve and keep available out of its
authorized but unissued stock, for the purpose of effecting the conversion of
the Senior Common Stock, such number of its duly authorized shares of Common
Stock as shall from time to time be sufficient to effect the conversion of all
outstanding shares of Senior Common Stock.  Before taking any action which would
cause Common Stock, upon the conversion of

                                      -27-
<PAGE>

Senior Common Stock, to be issued below the then par value of the shares of
Common Stock, the Corporation will take any corporate action that may, in the
opinion of its counsel, be necessary in order that the Corporation may validly
and legally issue fully paid and non-assessable shares of Common Stock to the
holders of Senior Common Stock.

     (iv)   Adjustments for Dividends. Upon any conversion of Senior Common
            -------------------------
Stock, no adjustment to the conversion ratio shall be made for declared and
unpaid dividends on the Senior Common Stock surrendered for conversion or on the
Common Stock delivered upon conversion.

     (v)    Termination of Rights. All shares of Senior Common Stock which shall
            ---------------------
have been surrendered for conversion as herein provided shall no longer be
deemed to be outstanding and all rights with respect to such shares, including
the rights, if any, to receive notices and to vote, shall immediately cease and
terminate on the conversion date, except only the right of the holders thereof
to receive shares of Common Stock in exchange therefor and payment of any
declared and unpaid dividends thereon. On and as of the conversion date, the
shares of Common Stock issuable upon such conversion shall be deemed to be
outstanding, and the holder thereof shall be entitled to exercise and enjoy all
rights with respect to such shares of Common Stock, including the rights, if
any, to receive notices and to vote. Shares of Senior Common Stock converted
into Common Stock will be restored to the status of authorized but unissued
shares of preferred stock without designation as to series, and may thereafter
be issued, whether or not designated as shares of Senior Common Stock.

     (vi)   No Conversion Charge or Tax. The issuance and delivery of
            ---------------------------
certificates for shares of Common Stock upon the conversion of shares of Senior
Common Stock shall be made without charge to the holder of shares of Senior
Common Stock for any issue or transfer tax, or other incidental expense in
respect of the issuance or delivery of such certificates or the securities
represented thereby, all of which taxes and expenses shall be paid by the
Corporation.

     (vii)  Reorganization, Reclassification and Merger Adjustment. If there
            ------------------------------------------------------
occurs any capital reorganization or any reclassification of the Common Stock of
the Corporation, the consolidation or merger of the Corporation with or into
another Person (other than a merger or consolidation of the Corporation in which
the Corporation is the continuing corporation and which does not result in any
reclassification or change of outstanding shares of its Common Stock) or the
sale or conveyance of all or substantially all of the assets of the Corporation
to another Person, then each share of Senior Common Stock shall thereafter be
convertible into the same kind and amounts of securities (including shares of
stock) or other assets, or both, which were issuable or distributable to the
holders of outstanding Common Stock of the Corporation upon such reorganization,
reclassification, consolidation, merger, sale or conveyance, in respect of that
number of shares of Common Stock into which such share of Senior Common Stock
might have been converted immediately prior to such reorganization,
reclassification, consolidation, merger, sale or conveyance; and, in any such
case, appropriate adjustments (as

                                      -28-
<PAGE>

determined in good faith by the Board of Directors of the Corporation, whose
determination shall be conclusive) shall be made to assure that the provisions
set forth herein shall thereafter be applicable, as nearly as reasonably may be
practicable, in relation to any securities or other assets thereafter
deliverable upon the conversion of the Senior Common Stock.

     4.10   Common Stock.
            ------------

     (a)    General. Except as otherwise provided herein, all shares of Common
            -------
Stock issued and outstanding shall be identical, and shall entitle the holders
thereof to the same rights, powers and privileges of stockholders under Delaware
law. For purposes of this Section 4.10 (and the definitions relating thereto),
the Class A Common Stock and the Class B Common Stock are herein collectively
referred to as the "Non-Tracked Common Stock" and the Class C Common Stock and
the Class D Common Stock are herein collectively referred to as the "Tracked
Common Stock".

     (b)    Dividends. Subject to Section 4.11(b) and the express terms of any
            ---------
outstanding series of Preferred Stock, dividends may be paid in cash or
otherwise with respect to each class of Common Stock out of the assets of the
Corporation, upon the terms, and subject to the limitations, provided in this
Section 4.10(b), as the Board of Directors may determine.

     (i)    Dividends on the Non-Tracked Common Stock. Dividends on the
            -----------------------------------------
Non-Tracked Common Stock may be declared and paid only out of the excess of (A)
the funds of the Corporation legally available therefor over (B) the Tracked
Business Available Dividend Amount (the "Non-Tracked Business Available Dividend
                                         ---------------------------------------
Amount").
- ------

     (ii)   Dividends on Tracked Common Stock. Dividends on the Tracked Common
            ---------------------------------
Stock may be declared and paid only out of the lesser of (A) the funds of the
Corporation legally available therefor and (B) the Tracked Business Available
Dividend Amount. The Corporation shall not declare or pay cash dividends on, or
redeem, purchase or otherwise acquire for consideration, any shares of Tracked
Common Stock unless concurrently therewith the Corporation shall declare or pay
cash dividends on, or redeem, purchase or otherwise acquire for consideration,
as the case may be, on the same terms, all shares of Tracked Common Stock
ratably in accordance with the number of shares of each class of Tracked Common
Stock then outstanding.

     (iii)  Discrimination in Dividends Among the Tracked and Non-Tracked Common
            --------------------------------------------------------------------
Stock. The Board of Directors may at any time, subject to the provisions of
- -----
Sections 4.10(b)(i) and (ii) and Section 4.11, declare and pay dividends
exclusively on the Non-Tracked Common Stock, exclusively on the Tracked Common
Stock or on both such categories of Common Stock in equal or unequal amounts,
notwithstanding the relative amounts of the Non-Tracked Business Available
Dividend Amount and the Tracked Business Available Dividend Amount.

                                      -29-
<PAGE>

     (c)    Voting.
            ------

     (i)    The holders of shares of Common Stock shall be entitled to such
voting rights as hereinafter provided, and shall be entitled to notice of any
stockholders' meeting and to vote upon such matters as provided herein and in
the by-laws of the Corporation, and as may be provided by law. Holders of any
class of Common Stock shall not be entitled to cumulate their votes for any
purpose. Except as otherwise required by law or provided herein, regardless of
the number of shares of any class of Common Stock then outstanding, each class
of Common Stock shall be entitled to the number of votes enumerated below and
the number of votes or fractional votes to which each share of a particular
class of Common Stock shall be entitled shall be the quotient determined by
dividing the aggregate number of votes to which such class of Common Stock is
entitled by the number of shares of such class of Common Stock then outstanding.
Except as otherwise required by law or provided herein, the Class A Common Stock
shall have 4,990,000 votes; the Class B Common Stock shall have no votes; the
Class C Common Stock shall have no votes; the Class D Common Stock shall have no
votes; and the Voting Preference Common Stock shall have 5,010,000 votes.

     (ii)   A quorum for the transaction of business shall be present when a
majority of the shares of Voting Preference Common Stock outstanding as of the
record date are present and when shares of all classes of Common Stock with at
least 5,010,000 votes are present, except that (x) with respect to actions
requiring a majority vote of the Class A Common Stock, the presence of a
majority of the outstanding shares of Class A Common Stock shall also be
required for a quorum to be present, (y) with respect to actions requiring the
vote of a majority vote of the Class C Common Stock, the presence of a majority
of the outstanding shares of Class C Common Stock shall also be required for a
quorum to be present and (z) with respect to actions requiring the vote of a
majority vote of the Class D Common Stock, the presence of a majority of the
outstanding shares of Class D Common Stock shall also be required for a quorum
to be present. Except as otherwise required by law or provided herein, the
majority vote of the Voting Preference Common Stock present at any meeting at
which a quorum is present shall be sufficient to approve any action required to
be approved by the holders of the Common Stock.

     (iii)  In any matter requiring a separate class vote of holders of any
class of Common Stock or a separate vote of two or more classes of Common Stock
voting together as a single class, for the purposes of such a class vote, each
share of Common Stock of such classes shall be entitled to one vote per share.

     (iv)   In the event that the Corporation shall have received an opinion of
regulatory counsel of nationally recognized standing to the effect that the
rules, regulations or policies of the Federal Communications Commission (the
"FCC") permit the Class A Common Stock and the Voting Preference Common Stock
 ---
(x) to be voted as a single class on all matters, (y) to be treated as a single
class for purposes of all quorum requirements and (z) to have one vote per
share, then, unless the Board of Directors of the Corporation shall have
determined, within 30 days after the date of receipt of such opinion, that
obtaining the FCC consent described below would be reasonably expected

                                      -30-
<PAGE>

to have a significant detrimental effect on the Corporation, the Corporation
shall, upon the affirmative vote of 66-2/3% or more of the Class A Common Stock,
seek consent from the FCC to permit the Class A Common Stock and Voting
Preference Common Stock to vote and act as a single class in the manner
described above. From and after the date that such consent is obtained, the
Class A Common Stock and the Voting Preference Common Stock shall be voted as a
single class on all matters, shall be treated as a single class for purposes of
all quorum requirements, and shall have one vote per share; provided, that the
voting rights of the Class B Common Stock, Class C Common Stock and Class D
Common Stock and the Preferred Stock shall remain unaffected.

  (v) The holders of shares of Class B Common Stock shall be entitled to vote as
a separate class on any amendment, repeal or modification of any provision of
this Restated Certificate of Incorporation that adversely affects the powers,
preferences or special rights of the holders of the Class B Common Stock.

  (d) Dissolution, Liquidation or Winding Up.  Upon the dissolution, liquidation
      --------------------------------------
or winding up of the Corporation, after any preferential amounts to be
distributed to the holders of the Preferred Stock and any other class or series
of stock having a preference over the Common Stock then outstanding have been
paid or declared and funds sufficient for the payment thereof in full set apart
for payment, (i) the holders of the Tracked Common Stock shall be entitled to
receive pro rata the Tracked Business Available Liquidation Amount and (ii) the
holders of the Non-Tracked Common Stock shall be entitled to receive pro rata
the excess of (A) all the remaining assets of the Corporation available for
distribution to its stockholders over (B) the Tracked Business Available
Liquidation Amount.


  (e) Conversion.
      ----------

  (i)   Each share of Class B Common Stock may, at the option of the holder
thereof, at any time, be converted into one fully paid and non-assessable share
of Class A Common Stock.

  (ii)  Each share of Class A Common Stock may, at the option of the holder
thereof, at any time, be converted into one fully paid and non-assessable share
of Class B Common Stock.

  (iii) In the event that the Corporation shall have received an opinion of
regulatory counsel of nationally recognized standing to the effect that the
rules, regulations or policies of the FCC permit the conversion of shares of
Tracked Common Stock into Class A Common Stock or Class B Common Stock, then,
unless the Board of Directors of the Corporation shall have determined, within
30 days after receipt of such opinion, that permitting such conversion would be
reasonably expected to have a significant detrimental effect on the Corporation,
shares of Class C Common Stock and Class D Common Stock shall, upon the
affirmative vote of 66-2/3% or more of the Class

                                      -31-
<PAGE>

A Common Stock, be convertible as follows: (x) each share of Class C Common
Stock may, at the option of the holder thereof, be converted into one fully paid
and non-assessable share of Class A Common Stock or Class B Common Stock, and
(y) each share of Class D Common Stock may, at the option of the holder thereof,
be converted into one fully paid and non-assessable share of Class A Common
Stock or Class B Common Stock.

  4.11 Participating Stock.
       -------------------

  (a)  Changes in Capital Stock.  The Corporation shall not effect any change in
       ------------------------
or reclassification of any class or series of the outstanding Participating
Stock, whether through stock dividends, stock splits, reverse stock splits,
combinations or otherwise, without the payment to the Corporation of  any
consideration therefor in money, services or property, unless concurrently
therewith the Corporation shall effect a corresponding change in each other
class and series of the outstanding Participating Stock.

  (b)  Dividends and Distributions.  The Corporation shall not declare or pay
       ---------------------------
cash dividends on, or redeem, purchase or otherwise acquire for consideration,
any shares of Participating Stock unless concurrently therewith the Corporation
shall declare or pay cash dividends on, or redeem, purchase or otherwise acquire
for consideration, as the case may be, on the same terms, all shares of
Participating Stock ratably in accordance with the number of shares of each
class and series of Participating Stock then outstanding.

  (c)  Notices.  Any written notice or communication by the Corporation to
       -------
holders of any class or series of Participating Stock shall be sent to all
holders of Participating Stock.

  4.12 Exchange of Capital Stock.  Notwithstanding any other provision of this
       -------------------------
Restated Certificate of Incorporation to the contrary, in the event that AT&T
Wireless PCS, Inc. terminates its obligations under Section 8.6 of the
Stockholders Agreement pursuant to Section 8.8(c) thereof with respect to any
Overlap Territory (as defined therein) (any such termination being referred to
hereinafter as the "Exchange Event"), the following provisions shall apply:
                    --------------

  (a)  Right to Exchange.  The Corporation shall have the right, exercisable in
       -----------------
its sole discretion by written notice (the "Exchange Notice") given to the
                                            ---------------
Initial Holders and Section 4.12 Transfers within 60 days after the Exchange
Event, to:

  (i)  require the Initial Holders and each Section 4.12 Transferee to exchange
for an equivalent number of shares of Series B Preferred Stock either (A) all of
the shares of Series A Preferred Stock then owned by the Initial Holders and
each Section  4.12 Transferee or (B) a number of shares of Series A Preferred
Stock then owned by each such holder equal to the product of (x) the number of
shares of Series A Preferred Stock then owned by such holder multiplied by (y) a
fraction, the numerator of which is equal to the number of POPs (as defined in
the Stockholders Agreement) in the Overlap Territory and the denominator of
which is equal to the total number of POPs in the

                                      -32-
<PAGE>

Territory (as defined in the Stockholders Agreement); and

  (ii) require the Initial Holders and each Section  4.12 Transferee to
exchange, for a number of shares of Series B Preferred Stock determined in
accordance with paragraph (b) below, either (A) all of the shares of Series D
Preferred Stock, Series F Preferred Stock and Common Stock owned by the Initial
Holder on the date hereof (or shares of Common Stock or Senior Common Stock into
which such shares of Series D Preferred Stock, Series F Preferred Stock and
Senior Common Stock shall have been converted) and that the Initial Holders or a
Section  4.12 Transferee continues to own on the date of delivery of the
Exchange Notice (any such shares of Series D Preferred Stock, Series F Preferred
Stock or Common Stock being referred to hereinafter collectively as "Original
                                                                     --------
Shares") or (B) a number of Original Shares of Series D Preferred Stock, Series
- ------
F Preferred Stock and Common Stock equal to the product of (x) the number of
Original Shares of Series D Preferred Stock, Series F Preferred Stock, Senior
Common Stock and Common Stock, as the case may be, then owned by each such
holder, multiplied by (y) a fraction, the numerator of which is equal to the
number of POPs in the Overlap Territory and the denominator of which is equal to
the total number of POPs in the Territory;

provided, that (x) if the Corporation exercises its right under clause (i)(A) of
this paragraph (a), it shall be required to exercise its right under clause
(ii)(A) of this paragraph (a), and vice-versa; and if the Corporation exercises
its right under clause (i)(B) of this paragraph (a), it shall be required to
exercise its right under clause (ii)(B) of this paragraph (a), and vice-versa
and (y) the provisions of this Section 4.12(a) shall not apply to any Section
4.12 Transferee which is a Cash Equity Investor.

(Shares of Series A Preferred Stock, Series D Preferred Stock, Series F
Preferred Stock and Series G Preferred Stock (and shares of Common Stock and
Senior Common Stock into which such shares shall have been converted) and shares
of Common Stock subject to exchange pursuant to this Section 4.12 are
hereinafter referred to collectively as "Exchange Shares.")
                                         ---------------

  (b)  Number of Shares of Series B Preferred Stock Issuable in Exchange.  The
       -----------------------------------------------------------------
number of shares of Series B Preferred Stock issuable in exchange for Original
Shares pursuant to clause (ii) of paragraph (a) above shall be equal to the
quotient of the aggregate purchase price paid by the Initial Holders for the
Original Shares being exchanged, divided by $1,000.

  (c)  Fractional Shares.  Notwithstanding any other provision of this Restated
       -----------------
Certificate of Incorporation, the Corporation shall not be required to issue
fractions of shares upon exchange of any Exchange Shares or to distribute
certificates which evidence fractional shares.  In lieu of fractional shares,
the Corporation may pay therefor, at the time of any exchange of Exchange Shares
as herein provided, an amount in cash equal to such fraction multiplied by the
Market Price of a share of Common Stock on such date.

  (d)  Mechanics of Exchange.  The Exchange Notice shall specify the date fixed
       ---------------------
for the exchange (the "Exchange Date"), which shall be at least ten but no more
                       -------------
than 60 days following delivery of the Exchange Notice, and the place designated
for exchange of the

                                      -33-
<PAGE>

Exchange Shares pursuant to this Section 4.12. Such notice will be sent by first
class or registered mail, postage prepaid, to the Initial Holders and each
Section 4.12 Transferee at such holder's address last shown on the records of
the transfer agent for the Exchange Shares (or the records of the Corporation if
it serves as its own transfer agent). On or before the Exchange Date, the
Initial Holders and each Section 4.12 Transferee shall surrender its certificate
or certificates for all such shares to the Corporation at the place designated
in such notice. If required by the Corporation, certificates surrendered for
exchange shall be endorsed or accompanied by a written instrument or instruments
of transfer, in form satisfactory to the Corporation, duly executed by the
Initial Holders and each Section 4.12 Transferee or its attorney duly authorized
in writing.

  (e) Termination of Rights.  On and after the Exchange Date (whether or not the
      ---------------------
applicable certificates have theretofore been surrendered), all rights with
respect to the Exchange Shares, including the rights, if any, to receive notices
and to vote, will terminate, except only the rights of the Initial Holders and
Section 4.12 Transferees to receive certificates for the number of shares of
Series B Preferred Stock into which such Exchange Shares have been exchanged,
upon surrender of its certificate or certificates therefor, and payment of any
declared but unpaid dividends thereon (which shall accrue and be payable at the
times and on the other terms applicable to such dividends when declared) and
payment of any deferred dividends in respect of Series A Preferred Stock which
shall be payable as set forth in Section 4.3(b)(iii).  Within ten Business Days
after the Exchange Date, the Corporation shall issue and deliver to the Initial
Holders and each Section 4.12 Transferee, or on its written order to its
nominees, a certificate or certificates for the number of whole shares of Series
B Preferred Stock issuable upon such exchange in accordance with the provisions
hereof, together with cash in lieu of fractional shares calculated in accordance
with paragraph (c) of this Section 4.12.

  (f) Reservation of Shares.  The Corporation shall at all times reserve and
      ---------------------
keep available for issuance upon the exchange of Exchange Shares the maximum
number of its authorized but unissued shares of Series B Preferred Stock as is
reasonably anticipated to be sufficient to permit the exchange of all
outstanding Exchange Shares, and shall take all action required to increase the
authorized number of shares of Series B Preferred Stock if at any time there
shall be insufficient authorized but unissued shares of Series B Preferred Stock
to permit such reservation or to permit the exchange of all outstanding Exchange
Shares.

  (g) Adjustments for Dividends.  Upon any exchange of Exchange Shares, no
      -------------------------
adjustment to the rate of conversion shall be made for accrued and unpaid
dividends (whether or not declared) on the Exchange Shares, as the case may be,
surrendered for exchange or on the Series B Preferred Stock delivered upon
exchange.

  (h) No Exchange Charge or Tax.  The issuance and delivery of certificates for
      -------------------------
shares of Series B Preferred Stock upon the exchange of Exchange Shares shall be
made without charge to the Initial Holder for any issue or transfer tax, or
other incidental expense in respect of the issuance or delivery of such
certificates or the securities represented thereby, all of which taxes and
expenses shall be paid by the Corporation.

                                      -34-
<PAGE>

  4.13  Redemption of Capital Stock; FCC Approval.
        -----------------------------------------

  (a)   Redemption.  Notwithstanding any other provision of this Restated
        ----------
Certificate of Incorporation to the contrary, outstanding shares of capital
stock of the Corporation held by Disqualified Holders shall always be subject to
redemption by the Corporation, by action of the Board of Directors, if, in the
judgment of the Board of Directors, such action should be taken, pursuant to
Section 151(b) of the GCL or any other applicable provision of law, to the
extent necessary to prevent the loss or secure the reinstatement of any license
or franchise from any governmental agency held by the Corporation or any of its
subsidiaries to conduct any portion of the business of the Corporation or any of
its subsidiaries, which license or franchise is conditioned upon some or all of
the holders of the Corporation's stock possessing prescribed qualifications.
The terms and conditions of such redemption shall be as follows:

  (i)   the redemption price of the shares to be redeemed pursuant to this
Section 4.13 shall be equal to the lesser of (x) the Market Price or (y) if such
stock was purchased by such Disqualified Holder within one year of the Section
4.13 Redemption Date, such Disqualified Holder's purchase price for such shares;

  (ii)  the redemption price of such shares may be paid in cash, Redemption
Securities or any combination thereof;

  (iii) if less than all the shares held by Disqualified Holders are to be
redeemed, the shares to be redeemed shall be selected in such manner as shall be
determined by the Board of Directors, which may include selection first of the
most recently purchased shares thereof, selection by lot or selection in any
other manner determined by the Board of Directors;

  (iv)  at least 30 days' written notice of the Section 4.13 Redemption Date
shall be given to the record holders of the shares selected to be redeemed
(unless waived in writing by any such holder); provided, however, that only 10
days' written notice of the Redemption Date shall be given to record holders if
the cash or Redemption Securities necessary to effect the redemption shall have
been deposited in trust for the benefit of such record holders and subject to
immediate withdrawal by them upon surrender of the stock certificates for their
shares to be redeemed; provided, further, that the record holders of the shares
selected to be redeemed may transfer such shares prior to the Section 4.13
Redemption Date to any holder that is not a Disqualified Holder and, thereafter,
for so long as such shares are not held by a Disqualified Holder, such shares
shall not be subject to redemption by the Corporation;

  (v)   from and after the Section 4.13 Redemption Date, any and all rights of
whatever nature (including without limitation any rights to vote or participate
in dividends declared on stock of the same class or series as such shares) with
respect to the shares selected from redemption held by Disqualified Holders on
the Section 4.13 Redemption Date shall cease and terminate and such Disqualified
Holders thenceforth shall be entitled only to receive the cash or Redemption
Securities payable upon

                                      -35-
<PAGE>

redemption; and

  (vi) such other terms and conditions as the Board of Directors shall
determine.

  (b)  FCC Approval.  Notwithstanding anything herein to the contrary, if
       ------------
Federal Communications Commission or other regulatory approval is required to be
obtained prior to the conversion of shares of any series or class of Preferred
Stock or Common Stock, the holder thereof may nevertheless elect to convert any
or all of its shares by written notice given to the Corporation in accordance
with the applicable provision hereof, provided, that such conversion shall not
become effective until the close of business on the date of the receipt of the
last of any such approvals and of the surrender of the certificates representing
the shares of the applicable Preferred Stock or Common Stock to be converted,
and the rights of the holder thereof shall continue in full force and effect
pending the receipt of all such approvals, except that, in the case of the
Series A Preferred Stock, no dividends shall be payable in respect of the period
following the Series A Conversion Date, unless the required approvals are not
obtained and the conversion has not been effected within one year of the Series
A Conversion Date and the applicable conversion notice is withdrawn, in which
event the obligation to pay dividends from and after the Series A Conversion
Date shall be payable in accordance with the terms of Section 4.3(b).

  4.14 Definitions.  For the purposes of this Restated Certificate of
       -----------
Incorporation, the following terms shall have the meanings indicated:

       "Affiliate" means, with respect to any Person, any other Person that
        ---------
directly, or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with that Person.  For purposes of this
definition, "control" (including the terms "controlling" and "controlled") means
the power to direct or cause the direction of the management and policies of a
Person, directly or indirectly, whether through the ownership of securities or
partnership or other ownership interests, by contract or otherwise.

       "Appraisal Procedure" means the following procedure for determining the
        -------------------
Market Price, for the purpose of calculating the Series A Conversion Rate, in
the event that the shares of Class A Common Stock are not listed or admitted for
trading on any national securities exchange and are not quoted on NASDAQ or any
similar service:

  (i)  Two independent accounting or investment banking firms of nationally
recognized standing (each, an "Appraiser"), one chosen by the Corporation and
                               ---------
one by the holders of a majority of the outstanding shares of Series A Preferred
Stock, shall each determine and attempt to mutually agree upon, the Market
Price.  Each party shall deliver a notice to the other appointing its Appraiser
within 15 days after the applicable notice and surrender pursuant to Section
4.3(iv).  If either the Corporation or such holders fail to appoint an appraiser
within such 15-day period, the Market Price shall be determined by the Appraiser
that has been so appointed.

  (ii) If within 30 days after appointment of the two Appraisers they are unable

                                      -36-
<PAGE>

to agree upon the Market Price, an independent accounting or investment banking
firm of nationally recognized standing shall within ten days thereafter be
chosen to serve as a third Appraiser by the mutual consent of such first two
Appraisers.  The determination of the Market Price by the third Appraiser so
appointed and chosen shall be made within 30 days after the selection of such
third Appraiser.

  (iii) If three Appraisers shall be appointed and the determination of one
Appraiser is disparate from the middle determination by more than twice the
amount by which the other determination is disparate from the middle
determination, then the determination of such Appraiser shall be excluded, the
remaining two determinations shall be averaged, and such average shall be
binding and conclusive on the Corporation and the holders of the Series A
Preferred Stock; otherwise the average of all three determinations shall be
binding and conclusive on the Corporation and the holders of the Series A
Preferred Stock.

  (iv)  In connection with any appraisal conducted pursuant to this Appraisal
Procedure, the Appraiser shall adhere to the guidelines provided in the
definition of "Market Price" set forth below, including the proviso thereto.

  (v)   The fees and expenses of each Appraiser shall be borne by the
Corporation.

        "Board of Directors" has the meaning specified in Section 4.2(a).
         ------------------

        "Business Day" shall mean any day other than a Saturday, Sunday or
         ------------
other day on which commercial banks in the City of New York are authorized or
required by law or executive order to close.

        "Class A Common Stock" has the meaning specified in Section 4.1.
         --------------------

        "Class B Common Stock" has the meaning specified in Section 4.1.
         --------------------

        "Class C Common Stock" has the meaning specified in Section 4.1.
         --------------------

        "Class D Common Stock" has the meaning specified in Section 4.1.
         --------------------

        "Closing Price" shall mean, with respect to each share of any class or
         -------------
series of capital stock for any day, (i) the last reported sale price regular
way or, in case no such sale takes place on such day, the average of the closing
bid and asked prices regular way, in either case as reported on the principal
national securities exchange on which such class or series of capital stock is
listed or admitted for trading or (ii) if such class or series of capital stock
is not listed or admitted for trading on any national securities exchange, the
last reported sale price or, in case no such sale takes place on such day, the
average of the highest reported bid and the lowest reported asked quotation for
such class or series of capital stock, in either case as reported on NASDAQ or a
similar service if NASDAQ is no longer reporting such information.

        "Common Stock" has the meaning specified in Section 4.1.
         ------------

                                      -37-
<PAGE>

          "Disqualified Holder" shall mean any holder of shares of capital stock
           -------------------
of the Corporation whose holding of such stock, either individually or when
taken together with the holding of shares of capital stock of the Corporation by
any other holders, may result, in the judgment of the Board of Directors, in the
loss of, or the failure to secure the reinstatement of, any license or franchise
from any governmental agency held by the corporation or any of its subsidiaries
or affiliates to conduct any portion of the business of the corporation or any
of its subsidiaries or affiliates.

          "Dividend Payment Date" shall mean the last day of each March, June,
           ---------------------
September and December, except that if any Dividend Payment Date is not a
Business Day, then the next succeeding Business Day shall be the Dividend
Payment Date.

          "Fully Diluted Basis" shall mean, with respect to the outstanding
           -------------------
shares of Common Stock, the number of shares of Common Stock outstanding
assuming the conversion of all outstanding convertible securities (other than
the Series A Preferred Stock) and the exercise of all outstanding warrants,
options or other rights to subscribe for or purchase any shares of Common Stock.

          "Initial Holder" means AT&T Wireless PCS Inc., a Delaware corporation,
           --------------
TWR Cellular, Inc., a Delaware corporation, and/or any of their respective
Affiliates that is a Subsidiary of AT&T Corp.

          "Invested Amount" means, as of any date with respect to each share of
           ---------------
Series C Preferred Stock held by any stockholder, an amount equal to the
quotient of (i) the aggregate paid-in capital actually paid with respect to all
shares of Series C Preferred Stock held by such stockholder as of such date
divided by (ii) the total number of shares of Series C Preferred Stock held by
such stockholder.

          "IPO Date" shall mean the first date on which (a) the Common Stock
           --------
shall have been registered pursuant to an effective Registration Statement under
the Securities Act of 1933, as amended, (b) the aggregate gross proceeds
received by the Corporation in connection with such Registration Statement(s)
equals or exceeds $20 million, and (c) the Common Stock shall be listed for
trading on the New York Stock Exchange or the American Stock Exchange or
authorized for trading on NASDAQ, including without limitation its National
Market System.

          "IPO Price" shall mean the price per share at which shares of Common
           ---------
Stock are offered to the public in the Corporation's initial public offering of
Common Stock.

          "Junior Stock" shall mean, with respect to shares of Series A
           ------------
Preferred Stock or Series B Preferred Stock, any capital stock of the
Corporation, including without limitation the Series C Preferred Stock, Series D
Preferred Stock, Series E Preferred Stock, Series F Preferred Stock, Series G
Preferred Stock and the Common Stock, ranking junior to the Series A Preferred
Stock or Series B Preferred Stock, as the case may be, with respect to
dividends, distribution in liquidation or any other preference, right or power.

                                      -38-
<PAGE>

          "Liquidation Preference" shall mean, as of any date, and subject to
           ----------------------
adjustment for subdivisions or combinations affecting the number of shares of
the applicable series of Preferred Stock:

          (i)    with respect to each share of Series A Preferred Stock and
Series B Preferred Stock, $1,000 plus accrued and unpaid dividends thereon;

          (ii)   with respect to each share of Series C Preferred Stock, the
Invested Amount plus accrued and unpaid dividends on such share (if any), plus
an amount equal to interest on the Invested Amount at the rate of six percent
(6%) per annum, compounded quarterly, less the amount of dividends (if any)
theretofore declared and paid in respect of such share;

          (iii)  with respect to each share of Series D Preferred Stock, $1,000
plus accrued and unpaid dividends thereon (if any), plus an amount equal to
interest on $1,000 at the rate of six percent (6%) per annum, compounded
quarterly, from the date of issuance of such share to and including the date of
the calculation, less the amount of dividends (if any) theretofore declared and
paid in respect of such share;

          (iv)   with respect to each share of Series E Preferred Stock, accrued
and unpaid dividends thereon (if any), plus an amount equal to interest on
$1,000 at the rate of six percent (6%) per annum, compounded quarterly, from the
date of issuance of such share to and including the date of the calculation,
less the amount of dividends (if any) theretofore declared and paid in respect
of such share;

          (v)    with respect to each share of Series F Preferred Stock, $.01
plus accrued and unpaid dividends thereon; and

          (vi)   with respect to each share of Senior Common Stock, the quotient
of (a) the sum of (i) the Liquidation Preference with respect to each share of
Series D Preferred Stock, multiplied by the aggregate number of shares of Series
D Preferred Stock converted into shares of Senior Common Stock in accordance
with Section 4.6(c) and (ii) the Liquidation Preference with respect to each
share of Series F Preferred Stock, multiplied by the aggregate number of shares
of Series F Preferred Stock converted into shares of Senior Common Stock in
accordance with Section 4.8(e)(ii), divided by the aggregate number of shares of
Senior Common Stock issued upon conversion of shares of Series D Preferred Stock
and Series F Preferred Stock.

          "Market Price" shall mean, with respect to each share of any class or
           ------------
series of capital stock for any day, (i) the average of the daily Closing Prices
for the ten consecutive trading days commencing 15 days before the day in
question or (ii) if on such date the shares of such class or series of capital
stock are not listed or admitted for trading on any national securities exchange
and are not quoted on NASDAQ or any similar service, the cash amount that a
willing buyer would pay a willing seller (neither acting under compulsion) in an
arm's-length transaction without time constraints per share of such class or
series of capital stock as of such date, viewing the Corporation on a going
concern basis, as determined (A) in the case of a

                                      -39-
<PAGE>

determination of "Market Price" for the purpose of calculating the Series A
Conversion Rate, pursuant to the Appraisal Procedure and (B) in the case of a
determination of Market Price for any other purpose, in good faith by the Board
of Directors, whose determination shall be conclusive; provided that, in
determining such cash amount, the following shall be ignored: (i) any contract
or legal limitation in respect of shares of Common Stock or Preferred Stock,
including transfer, voting and other rights, (ii) the "minority interest" or
"control" status of shares of Common Stock into which shares of Series A
Preferred Stock would be converted, and (iii) any illiquidity arising by
contract in respect of the shares of Common Stock and any voting rights or
control rights amongst the stockholders.

          "NASDAQ" shall mean the National Association of Securities Dealers
           ------
Automated Quotations System.

          "Non-Tracked Common Stock" has the meaning specified in Section
           ------------------------
4.10(a).

          "Non-Tracked Business Available Dividend Amount" has the meaning
           ----------------------------------------------
specified in Section 4.10(b)(i).

          "Optional Conversion Date" has the meaning specified in 4.6(c)(iii).
           ------------------------

          "Parity Stock" shall mean, with respect to shares of Series A
           ------------
Preferred Stock or Series B Preferred Stock, any capital stock of the
Corporation ranking on a parity with the Series A Preferred Stock or Series B
Preferred Stock, as the case may be, with respect to dividends, distribution in
liquidation or any other preference, right or power.

          "Participating Stock" shall mean, collectively, the Series F Preferred
           -------------------
Stock, the Senior Common Stock and the Non-Tracked Common Stock.

          "Person" shall mean any individual, firm, corporation, partnership,
           ------
trust, incorporated or unincorporated association, joint venture, joint stock
company, governmental agency or political subdivision thereof or other entity of
any kind, and shall include any successor (by merger or otherwise) of such
entity.

          "Preferred Stock" has the meaning specified in Section 4.1.
           ---------------

          "Qualified Transfer" shall mean a sale, transfer or other disposition
           ------------------
of shares of Series A Preferred Stock to any prospective transferee specified in
a Qualified Transfer Notice, other than a prospective transferee as to which the
Corporation disapproves in accordance with the terms of the second sentence of
Section 4.3(j), provided such sale, transfer or other disposition is made
pursuant to a binding agreement entered into no later than 180 days after the
applicable Qualified Transfer Notice is given.

          "Qualified Transferee" shall mean, with respect to any shares of
           --------------------
Series A Preferred Stock, (i) any Cash Equity Investor that acquired such shares
pursuant to Section 4.2 of the Stockholders Agreement or (ii) any other holder
that acquired such shares in a Qualified Transfer from an Initial Holders or
Qualified Transferee.

                                      -40-
<PAGE>

          "Qualified Transfer Notice" has the meaning specified in Section
           -------------------------
4.3(i)(x).

          "Redemption Securities" shall mean any debt or equity securities of
           ---------------------
the Corporation, any of its subsidiaries or affiliates or any other corporation,
or any combination thereof, having such terms and conditions as shall be
approved by the Board of Directors and which, together with any cash to be paid
as part of the redemption price payable pursuant to Section 4.13, in the opinion
of any nationally recognized investment banking firm selected by the Board of
Directors (which may be a firm which provides investment banking, brokerage or
other services to the Corporation), has a value, at the time notice of
redemption is given pursuant to Section 4.13(d) at least equal to the price
required to be paid pursuant to Section 4.13(a) (assuming, in the case of
Redemption Securities to be publicly traded, that such Redemption Securities
were fully distributed and subject only to normal trading activity).

          "Section  4.12 Transferee" shall mean any transferee of shares of
           ------------------------
Series A Preferred Stock, Series D Preferred Stock and Series F Preferred Stock
issued to the Initial Holder on the date hereof (or any shares of Senior Common
Stock or Common Stock into which any such shares are converted) that are
acquired in a private transaction.

          "Section 4.13 Redemption Date" shall mean the date fixed by the Board
           ----------------------------
of Directors for the redemption of any shares of stock of the corporation
pursuant to Section 4.13.

          "Senior Common Stock" has the meaning specified in Section 4.1.
           -------------------

          "Senior Stock" shall mean, with respect to shares of Series A
           ------------
Preferred Stock or Series B Preferred Stock, as the case may be, any capital
stock of the Corporation ranking senior to the Series A Preferred Stock or the
Series B Preferred Stock, as the case may be, with respect to dividends,
distribution in liquidation or any other preference, right or power.

          "Series A Conversion Date" has the meaning specified in Section
           ------------------------
4.3(i)(iv).

          "Series A Conversion Rate" shall mean, as of any date of
           ------------------------
determination, a fraction in which the numerator is the Liquidation Preference
of one share of Series A Preferred Stock as of such date, and the denominator is
the Market Price of Class A Common Stock as of such date.

          "Series A Preferred Stock" has the meaning specified in Section 4.1.
           ------------------------

          "Series A Redemption Price" has the meaning specified in Section
           -------------------------
4.3(e)(i).

          "Series B Preferred Stock" has the meaning specified in Section 4.1.
           ------------------------

          "Series C Preferred Stock" has the meaning specified in Section 4.1.
           ------------------------

          "Series D Preferred Stock" has the meaning specified in Section 4.1.
           ------------------------

          "Series E Preferred Stock" has the meaning specified in Section 4.1.
           ------------------------

                                      -41-
<PAGE>

          "Series F Preferred Stock" has the meaning specified in Section 4.1.
           ------------------------

          "Statutory Liquidation" means the liquidation of the Corporation
           ---------------------
pursuant to Section 275 of the GCL, as amended.

          "Stockholders Agreement" means the July 1998 Stockholders Agreement by
           ----------------------
and among the Corporation, the Initial Holders and the other stockholders of the
Corporation named therein, as the same may be amended, modified or supplemented
in accordance with the terms thereof, a copy of which is available for
inspection by any stockholder at the principal executive offices of the
Corporation.

          "Subsidiary" shall mean, with respect to any Person, a corporation or
           ----------
other entity of which 50% or more of the voting power of the voting equity
securities or equity interest is owned, directly or indirectly, by such Person.

          "Tracked Business Available Dividend Amount" shall mean, on any date,
           ------------------------------------------
the excess (if any) of (i) the fair market value of the total assets of Tracked
Subsidiary (including, without limitation, investments held by Tracked
Subsidiary), less the total amount of the liabilities of Tracked Subsidiary, in
each case as of such date determined in accordance with generally accepted
accounting principles, over (ii) the aggregate par value of, or any greater
amount determined in accordance with GCL to be capital in respect of, all
outstanding shares of the Tracked Common Stock.

          "Tracked Business Available Liquidation Amount" shall mean, on any
           ---------------------------------------------
date, the fair market value of the total assets of Tracked Subsidiary
(including, without limitation, investments held by Tracked Subsidiary, less the
total amount of the liabilities of Tracked Subsidiary, in each case as of such
date determined in accordance with generally accepted accounting principles.

          "Tracked Common Stock" has the meaning specified in Section 4.10(a).
           --------------------

          "Tracked Subsidiary" shall mean TeleCorp Holding Corp., Inc.
           ------------------

                                   ARTICLE V

          Election of Directors need not be by written ballot.

                                  ARTICLE VI

          Subject to the separate class vote requirements relating to any class
or series of Preferred Stock, the holders of shares of Common Stock representing
at least two-thirds (2/3) of the votes entitled to be cast for the election of
directors of the Corporation, voting together as a single class, in person or by
proxy, at a special or annual meeting of stockholders called for the purpose, or
by written consent, may amend, alter or repeal this Restated Certificate of
Incorporation or the bylaws of the Corporation (the "Bylaws").
                                                     ------

                                      -42-
<PAGE>

                                  ARTICLE VII

  7.1  Indemnification.  Any person who was or is a party or is threatened to be
       ---------------
made a party to any threatened, pending, or completed action, suit, or
proceeding (a "Proceeding"), whether civil, criminal, administrative, or
               ----------
investigative (whether or not by or in the right of the Corporation), by reason
of the fact that such person, or a person of whom such person is the legal
representative, is or was a director, officer, incorporator, employee, or agent
of the Corporation, or is or was serving at the request of the Corporation as a
director, officer, incorporator, employee, partner, trustee, or agent of another
corporation, partnership, joint venture, trust, employee benefit plan or other
enterprise (an "Other Entity"), shall be entitled to be indemnified by the
                ------------
Corporation to the full extent then permitted by law against expenses (including
counsel fees and disbursements), judgments, fines (including excise taxes
assessed on a person with respect to an employee benefit plan), and amounts paid
in settlement incurred by him in connection with such Proceeding.  Persons who
are not Directors or officers of the Corporation may be similarly indemnified in
respect of service to the Corporation or to an Other Entity at the request of
the Corporation to the extent the Board of Directors at any time specifies that
such persons are entitled to the benefits of this Article VII.

  7.2  Advancement of Expenses.  The Corporation shall, from time to time,
       -----------------------
reimburse or advance to any Director or officer or other person entitled to
indemnification hereunder the funds necessary for payment of expenses, including
attorneys' fees and disbursements, incurred in connection with any Proceeding,
in advance of the final disposition of such Proceeding; provided, however, that,
if (and only if) required by the GCL, such expenses incurred by or on behalf of
any Director or officer or other person may be paid in advance of the final
disposition of a Proceeding only upon receipt by the Corporation of an
undertaking, by or on behalf of such Director or officer (or other person
indemnified hereunder), to repay any such amount so advanced if it shall
ultimately be determined by final judicial decision from which there is no
further right of appeal that such Director, officer or other person is not
entitled to be indemnified for such expenses.

  7.3  Rights Not Exclusive.  The rights to indemnification and reimbursement or
       --------------------
advancement of expenses provided by, or granted pursuant to, this Article VII
shall not be deemed exclusive of any other rights to which a person seeking
indemnification or reimbursement or advancement of expenses may have or
hereafter be entitled under any statute, this Restated Certificate of
Incorporation, the Bylaws, any agreement, any vote of stockholders or
disinterested Directors or otherwise, both as to action in his or her official
capacity and as to action in another capacity while holding such office.

  7.4  Continuing Rights.  The rights to indemnification and reimbursement or
       -----------------
advancement of expenses provided by, or granted pursuant to, this Article VII
shall continue as to a person who has ceased to be a Director or officer (or
other person indemnified hereunder), shall inure to the benefit of the
executors, administrators, legatees and distributees of such person, and in
either case, shall inure whether or not the claim asserted is based on matters
which antedate the adoption of this Article VII.

  7.5  Insurance.  The Corporation shall have power to purchase and maintain
       ---------
insurance on

                                      -43-
<PAGE>

behalf of any person who is or was a Director, officer, employee or agent of the
Corporation, or is or was serving at the request of the Corporation, as a
director, officer, employee or agent of an Other Entity, against any liability
asserted against such person and incurred by such person in any such capacity,
or arising out of such person's status as such, whether or not the Corporation
would have the power to indemnify such person against such liability under the
provisions of this Article VII, the Bylaws or under Section 145 of the GCL or
any other provision of law.

  7.6  Contract Rights; No Repeal.  The provisions of this Article VII shall be
       --------------------------
a contract between the Corporation, on the one hand, and each Director and
officer who serves in such capacity at any time while this Article VII is in
effect and any other person indemnified hereunder, on the other hand, pursuant
to which the Corporation and each such Director, officer, or other person intend
to be legally bound.  No repeal or modification of this Article VII shall affect
any rights or obligations with respect to any state of facts then or, heretofore
or thereafter brought or threatened based in whole or in part upon any such
state of facts.

  7.7  Enforceability; Burden of Proof.  The rights to indemnification and
       -------------------------------
reimbursement or advancement of expenses provided by, or granted pursuant to,
this Article VII shall be enforceable by any person entitled to such
indemnification or reimbursement or advancement of expenses in any court of
competent jurisdiction.  The burden of proving that such indemnification or
reimbursement or advancement of expenses is not appropriate shall be on the
Corporation.  Neither the failure of the Corporation (including its Board of
Directors, its independent legal counsel and its stockholders) to have made a
determination prior to the commencement of such action that such indemnification
or reimbursement or advancement of expenses is proper in the circumstances nor
an actual determination by the Corporation (including its Board of Directors,
its independent legal counsel and its stockholders) that such person is not
entitled to such indemnification or reimbursement or advancement of expenses
shall constitute a defense to the action or create a presumption that such
person is not so entitled.  Such a person shall also be indemnified for any
expenses incurred in connection with successfully establishing his or her right
to such indemnification or reimbursement or advancement of expenses, in whole or
in part, in any such Proceeding.

  7.8  Service at the Request of the Corporation.  Any Director or officer of
       -----------------------------------------
the Corporation serving in any capacity in (a) another corporation of which a
majority of the shares entitled to vote in the election of its directors is
held, directly or indirectly, by the Corporation or (b) any employee benefit
plan of the Corporation or any corporation referred to in clause (a) shall be
deemed to be doing so at the request of the Corporation.

  7.9  Right to Be Covered by Applicable Law.  Any person entitled to be
       -------------------------------------
indemnified or to reimbursement or advancement of expenses as a matter of right
pursuant to this Article VII may elect to have the right to indemnification or
reimbursement or advancement of expenses interpreted on the basis of the
applicable law in effect at the time of the occurrence of the event or events
giving rise to the applicable Proceeding, to the extent permitted by law, or on
the basis of the applicable law in effect at the time such indemnification or
reimbursement or advancement of expenses is sought.  Such election shall be
made, by a notice in writing to the Corporation, at the time indemnification or
reimbursement or advancement of expenses is sought; provided, however, that if
no such notice is given, the right to indemnification or reimbursement or

                                      -44-
<PAGE>

advancement of expenses shall be determined by the law in effect at the time
indemnification or reimbursement or advancement of expenses is sought.

                                 ARTICLE VIII

          No Director of the Corporation shall be liable to the Corporation or
any of its stockholders for monetary damages for breach of fiduciary duty as a
Director, provided that this provision does not eliminate the liability of the
Director (i) for any breach of the Director's duty of loyalty to the Corporation
or its stockholders, (ii) for acts or omissions not in good faith or which
involve intentional misconduct or a knowing violation of law, (iii) under
Section 174 of the GCL or (iv) for any transaction from which the Director
derived an improper personal benefit.  For purposes of the prior sentence, the
term "damages" shall, to the extent permitted by law, include without
limitation, any judgment, fine, amount paid in settlement, penalty, punitive
damages, excise or other tax assessed with respect to an employee benefit plan,
or expense of any nature (including, without limitation, counsel fees and
disbursements).  Each person who serves as a Director of the Corporation while
this Article VIII is in effect shall be deemed to be doing so in reliance on the
provisions of this Article VIII, and neither the amendment or repeal of this
Article VIII, nor the adoption of any provision of this Restated Certificate of
Incorporation inconsistent with this Article VIII, shall apply to or have any
effect on the liability or alleged liability of any Director of the Corporation
for, arising out of, based upon, or in connection with any acts or omissions of
such Director occurring prior to such amendment, repeal, or adoption of an
inconsistent provision.  The provisions of this Article VIII are cumulative and
shall be in addition to and independent of any and all other limitations on or
eliminations of the liabilities of Directors of the Corporation, as such,
whether such limitations or eliminations arise under or are created by any law,
rule, regulation, bylaw, agreement, vote of stockholders or disinterested
Directors, or otherwise.

          IN WITNESS WHEREOF, the undersigned officer of the Corporation has
executed this Third Amended and Restated Certificate of Incorporation this 14th
day of May, 1999.

                                     /s/ Thomas Sullivan
                                     -------------------------------
                                     Name:  Thomas H. Sullivan
                                     Title: Executive Vice President














                                      -45-



<PAGE>

                                                                     EXHIBIT 3.2

================================================================================

                              TeleCorp PCS, Inc.



                             AMENDED AND RESTATED
                                    BYLAWS



                          Adopted as of July 17, 1998

================================================================================
<PAGE>

                          AMENDED AND RESTATED BYLAWS

                              TeleCorp PCS, Inc.


                                  ARTICLE 1.

                                 STOCKHOLDERS

          1.1    Annual Meeting.  The annual meeting of the stockholders of the
                 --------------
Corporation for the election of directors and for the transaction of such other
business as may properly come before such meeting shall be held at such place,
either within or without the State of Delaware, at 9:00 A.M. on the second
Wednesday of each April of each year (or, if such day is a legal holiday, then
on the next succeeding business day), or at such other date and hour, as may be
fixed from time to time by resolution of the Board of Directors and set forth in
the notice or waiver of notice of the meeting.

          1.2    Special Meetings.  Special meetings of the stockholders may be
                 ----------------
called at any time by the Chairman of the Board (or, in the event of his absence
or disability, by the President), or by the Board of Directors. A special
meeting shall be called by the Chairman of the Board (or, in the event of his
absence or disability, by the President), or by the Secretary, immediately upon
receipt of a written request therefor by stockholders holding in the aggregate
not less than 10% of the outstanding shares of the Corporation at the time
entitled to vote at any meeting of the stockholders. If such officers or the
Board of Directors shall fail to call such meeting within 20 days after receipt
of such request, any stockholder executing such request may call such meeting.
Any such special meeting of the stockholders shall be held at such place, within
or without the State of Delaware, as shall be specified in the notice or waiver
of notice thereof.

          1.3    Notice of Meetings; Waiver.  The Secretary or any Assistant
                 --------------------------
Secretary shall cause written notice of the place, date and hour of each meeting
of the stockholders, and, in the case of a special meeting, the purpose or
purposes for which such meeting is called, to be given personally or by mail,
not less than ten nor more than 60 days before the date of the meeting, to each
stockholder of record entitled to vote at such meeting. If such notice is
mailed, it shall be deemed to have been given to a stockholder when deposited in
the United States mail, postage prepaid, directed to the stockholder at his
address as it appears on the record of stockholders of the Corporation, or, if
he shall have filed with the Secretary a written request that notices to him be
mailed to some other address, then directed to him at such other address. Such
further notice shall be given as may be required by law.
<PAGE>

          Whenever notice is required to be given to stockholders hereunder, a
written waiver, signed by a stockholder, whether before or after the time stated
therein, shall be deemed equivalent to notice.  Neither the business to be
transacted at, nor the purpose of, any regular or special meeting of the
stockholders need be specified in a written waiver of notice.  The attendance of
any stockholder at a meeting of stockholders shall constitute a waiver of notice
of such meeting, except when the stockholder attends a meeting for the express
purpose of objecting, at the beginning of the meeting, to the transaction of any
business on the ground that the meeting is not lawfully called or convened.

          1.4    Quorum.  Except as otherwise required by law or by the
                 ------
Certificate of Incorporation, the presence in person or by proxy of the holders
of record of a majority of the shares entitled to vote at a meeting of
stockholders shall constitute a quorum for the transaction of business at such
meeting.

          1.5    Voting.  Except as set forth in the Certificate of
                 ------
Incorporation, if, pursuant to Section 5.5 of these Bylaws, a record date has
been fixed, every holder of record of shares entitled to vote at a meeting of
stockholders shall be entitled to one vote for each share outstanding in his
name on the books of the Corporation at the close of business on such record
date. If no record date has been fixed, then every holder of record of shares
entitled to vote at a meeting of stockholders shall be entitled to one vote for
each share of stock standing in his name on the books of the Corporation at the
close of business on the day next preceding the day on which notice of the
meeting is given, or, if notice is waived, at the close of business on the day
next preceding the day on which the meeting is held. Except as otherwise
required by law or by the Certificate of Incorporation, the vote of a majority
of the shares represented in person or by proxy at any meeting at which a quorum
is present shall be sufficient for the transaction of any business at such
meeting.

          1.6    Voting by Ballot.  No vote of the stockholders need be taken by
                 ----------------
written ballot or conducted by inspectors of election, unless otherwise required
by law. Any vote which need not be taken by ballot may be conducted in any
manner approved by the meeting.

          1.7    Adjournment.  If a quorum is not present at any meeting of the
                 -----------
stockholders, the stockholders present in person or by proxy shall have the
power to adjourn any such meeting from time to time until a quorum is present.
Notice of any adjourned meeting of the stockholders of the Corporation need not
be given if the place, date and hour thereof are announced at the meeting at
which the adjournment is taken, provided, however, that if the adjournment is
for more than 30 days, or if after the adjournment a new record date for the
adjourned meeting is fixed pursuant to Section 5.5 of these Bylaws, a notice of
the adjourned meeting, conforming to the requirements of Section 1.3 hereof,
shall be given to each stockholder of record entitled to vote at such meeting.
At any adjourned meeting at which a

                                       2
<PAGE>

quorum is present, any business may be transacted that might have been
transacted on the original date of the meeting.

          1.8    Proxies.  Any stockholder entitled to vote at any meeting of
                 -------
the stockholders or to express consent to or dissent from corporate action
without a meeting may, by a written instrument signed by such stockholder or his
attorney-in-fact, authorize another person or persons to vote at any such
meeting and express such consent or dissent for him by proxy. No such proxy
shall be voted or acted upon after the expiration of three years from the date
of such proxy, unless such proxy provides for a longer period. Every proxy shall
be revocable at the pleasure of the stockholder executing it, except in those
cases where applicable law provides that a proxy shall be irrevocable. A
stockholder may revoke any proxy which is not irrevocable by attending the
meeting and voting in person or by filing an instrument in writing revoking the
proxy or by filing another duly executed proxy bearing a later date with the
Secretary.

          1.9    Organization; Procedure.  At every meeting of stockholders the
                 -----------------------
presiding officer shall be the Chairman of the Board or, in the event of his
absence or disability, the President or, in the event of his absence or
disability, a presiding officer chosen by a majority of the stockholders present
in person or by proxy. The Secretary, or in the event of his absence or
disability, the Assistant Secretary, if any, or if there be no Assistant
Secretary, in the absence of the Secretary, an appointee of the presiding
officer, shall act as Secretary of the meeting. The order of business and all
other matters of procedure at every meeting of stockholders may be determined by
such presiding officer.

          1.10   Consent of Stockholders in Lieu of Meeting.  To the fullest
                 ------------------------------------------
extent permitted by law, whenever the vote of the stockholders at a meeting
thereof is required or permitted to be taken for or in connection with any
corporate action, such action may be taken without a meeting, without prior
notice and without a vote of stockholders, if the holders of outstanding stock
having not less than the minimum number of votes that would be necessary to
authorize or take such action at a meeting at which all shares entitled to vote
thereon were present and voted shall consent in writing to such corporate action
being taken. Prompt notice of the taking of the corporate action without a
meeting by less than unanimous written consent shall be given to those
stockholders who have not so consented in writing.

                                       3
<PAGE>

                                  ARTICLE 2.

                              BOARD OF DIRECTORS

          1.11    General Powers.  Except as may otherwise be provided by law,
                  --------------
by the Certificate of Incorporation or by these Bylaws, the property, affairs
and business of the Corporation shall be managed by or under the direction of
the Board of Directors and the Board of Directors may exercise all the powers of
the Corporation.

          1.12    Number and Term of Office.  The number of Directors
                  -------------------------
constituting the entire Board of Directors shall be thirteen, which number may
be modified from time to time by resolution of the Board of Directors, but in no
event shall the number of Directors be less than one. Each Director (whenever
elected) shall hold office until his successor has been duly elected and
qualified, or until his earlier death, resignation or removal.

          1.13    Election of Directors.  Except as set forth in the Certificate
                  ---------------------
of Incorporation and as otherwise provided in Sections 2.12 and 2.13 of these
Bylaws, the Directors shall be elected at each annual meeting of the
stockholders. If the annual meeting for the election of Directors is not held on
the date designated therefor, the Directors shall cause the meeting to be held
as soon thereafter as convenient. At each meeting of the stockholders for the
election of Directors, provided a quorum is present, the Directors shall be
elected by a plurality of the votes validly cast in such election.

          1.14    Annual and Regular Meetings.  The annual meeting of the Board
                  ---------------------------
of Directors for the purpose of electing officers and for the transaction of
such other business as may come before the meeting shall be held as soon as
possible following adjournment of the annual meeting of the stockholders at the
place of such annual meeting of the stockholders. Notice of such annual meeting
of the Board of Directors need not be given. The Board of Directors from time to
time may by resolution provide for the holding of regular meetings and fix the
place (which may be within or without the State of Delaware) and the date and
hour of such meetings. Notice of regular meetings need not be given, provided,
however, that if the Board of Directors shall fix or change the time or place of
any regular meeting, notice of such action shall be mailed promptly, or sent by
telegram, facsimile or cable, to each Director who shall not have been present
at the meeting at which such action was taken, addressed to him at his usual
place of business, or shall be delivered to him personally. Notice of such
action need not be given to any Director who attends the first regular meeting
after such action is taken without protesting the lack of notice to him, prior
to or at the commencement of such meeting, or to any Director who submits a
signed waiver of notice, whether before or after such meeting.

          1.15    Special Meetings; Notice.  Special meetings of the Board of
                  ------------------------
Directors shall be held whenever called by the Chairman of the Board or, in the
event of his absence or

                                       4
<PAGE>

disability, by the President, at such place (within or without the State of
Delaware), date and hour as may be specified in the respective notices or
waivers of notice of such meetings. Special meetings of the Board of Directors
may be called on 24 hours' notice, if notice is given to each Director
personally or by telephone or facsimile, or on five days' notice, if notice is
mailed to each Director, addressed to him at his usual place of business. Notice
of any special meeting need not be given to any Director who attends such
meeting without protesting the lack of notice to him, prior to or at the
commencement of such meeting, or to any Director who submits a signed waiver of
notice, whether before or after such meeting, and any business may be transacted
thereat.

          1.16    Quorum; Voting.  At all meetings of the Board of Directors,
                  --------------
the presence of a majority of the total authorized number of Directors shall
constitute a quorum for the transaction of business. Except as otherwise
required by law or the Certificate of Incorporation, the vote of a majority of
the Directors present at any meeting at which a quorum is present shall be the
act of the Board of Directors.

          1.17    Adjournment.  A majority of the Directors present, whether or
                  -----------
not a quorum is present, may adjourn any meeting of the Board of Directors to
another time or place. No notice need be given of any adjourned meeting unless
the time and place of the adjourned meeting are not announced at the time of
adjournment, in which case notice conforming to the requirements of Section 2.5
shall be given to each Director.

          1.18    Action Without a Meeting.  Any action required or permitted to
                  ------------------------
be taken at any meeting of the Board of Directors may be taken without a meeting
if all members of the Board of Directors consent thereto in writing, and such
writing or writings are filed with the minutes of proceedings of the Board of
Directors.

          1.19    Regulations; Manner of Acting.  To the extent consistent with
                  -----------------------------
applicable law, the Certificate of Incorporation and these Bylaws, the Board of
Directors may adopt such rules and regulations for the conduct of meetings of
the Board of Directors and for the management of the property, affairs and
business of the Corporation as the Board of Directors may deem appropriate. The
Directors shall act only as a Board, and the individual Directors shall have no
power as such.

          1.20    Action by Telephonic Communications.  Members of the Board of
                  -----------------------------------
Directors may participate in a meeting of the Board of Directors by means of
conference telephone or similar communications equipment by means of which all
persons participating in the meeting can hear each other, and participation in a
meeting pursuant to this provision shall constitute presence in person at such
meeting.

                                       5
<PAGE>

          1.21    Resignation.  Any Director may resign at any time by
                  -----------
delivering a written notice of resignation, signed by such Director, to the
Chairman of the Board, the President or the Secretary. Unless otherwise
specified therein, such resignation shall take effect upon delivery.

          1.22    Removal of Directors.  Except as set forth in the Certificate
                  --------------------
of Incorporation, any Director may be removed at any time, either for or without
cause, upon the affirmative vote of the holders of a majority of the outstanding
shares of stock of the Corporation entitled to vote for the election of such
Director, cast at a special meeting of stockholders called for that purpose. Any
vacancy in the Board of Directors caused by any such removal may be filled at
such meeting by the stockholders entitled to vote for the election of the
Director so removed. If such stockholders do not fill such vacancy at such
meeting (or in the written instrument effecting such removal, if such removal
was effected by consent without a meeting), such vacancy may be filled in the
manner provided in Section 2.13 of these Bylaws.

          1.23    Vacancies and Newly Created Directorships.  Except as set
                  -----------------------------------------
forth in the Certificate of Incorporation, if any vacancies shall occur in the
Board of Directors, by reason of death, resignation, removal or otherwise, or if
the authorized number of Directors shall be increased, the Directors then in
office shall continue to act, and such vacancies and newly created directorships
may be filled by a majority of the Directors then in office, although less than
a quorum. A Director elected to fill a vacancy or a newly created directorship
shall hold office until his successor has been elected and qualified or until
his earlier death, resignation or removal. Any such vacancy or newly created
directorship may also be filled at any time by vote of the stockholders.

          1.24    Compensation.  The amount, if any, which each Director shall
                  ------------
be entitled to receive as compensation for his services as such shall be fixed
from time to time by resolution of the Board of Directors.

          1.25    Reliance on Accounts and Reports, etc.   A member of the Board
                  -------------------------------------
of Directors, or a member of any Committee designated by the Board of Directors,
shall, in the performance of his duties, be fully protected in relying in good
faith upon the records of the Corporation and upon such information, opinions,
reports or statements presented to the Corporation by any of the Corporation's
officers or employees, or Committees of the Board of Directors, or by any other
person as to matters the member reasonably believes are within such other
person's professional or expert competence and who has been selected with
reasonable care by or on behalf of the Corporation, including without limitation
independent certified public accountants and appraisers.

                                       6
<PAGE>

                                  ARTICLE 3.

                   EXECUTIVE COMMITTEE AND OTHER COMMITTEES

          1.26    How Constituted.  The Board of Directors may designate one or
                  ---------------
more Committees, including an Executive Committee, each such Committee to
consist of such number of Directors as from time to time may be fixed by the
Board of Directors. The Board of Directors may designate one or more directors
as alternate members of any such Committee, who may replace any absent or
disqualified member or members at any meeting of such Committee. In addition,
unless the Board of Directors has so designated an alternate member of such
Committee, in the absence or disqualification of a member of such Committee, the
member or members thereof present at any meeting and not disqualified from
voting, whether or not he or they constitute a quorum, may unanimously appoint
another member of the Board of Directors to act at the meeting in the place of
any such absent or disqualified member. Thereafter, members (and alternate
members, if any) of each such Committee may be designated at the annual meeting
of the Board of Directors. Any such Committee may be abolished or redesignated
from time to time by the Board of Directors. Each member (and each alternate
member) of any such Committee (whether designated at an annual meeting of the
Board of Directors or to fill a vacancy or otherwise) shall hold office until
his successor shall have been designated or until he shall cease to be a
Director, or until his earlier death, resignation or removal.

          1.27    Powers.  Each Committee shall have and may exercise such
                  ------
powers of the Board of Directors as may be provided by resolution of the Board,
provided, that neither the Executive Committee nor any such other Committee
shall have the power or authority to (i) approve or adopt, or recommend to the
stockholders, any action or matter expressly required by the General Corporation
Law to be submitted to stockholders for approval or (ii) adopt, amend or repeal
any of these Bylaws. Each Committee may be granted by the Board of Directors
power to authorize the seal of the Corporation to be affixed to any or all
papers which may require it.

          1.28    Quorum; Voting.  Except as may be otherwise provided in the
                  --------------
resolution creating such Committee, at all meetings of any Committee the
presence of members (or alternate members) constituting a majority of the total
authorized membership of such Committee shall constitute a quorum for the
transaction of business. The act of a majority of the members present at any
meeting at which a quorum is present shall be the act of such Committee.

          1.29    Action without a Meeting.  Any action required or permitted to
                  ------------------------
be taken at any meeting of any such Committee may be taken without a meeting, if
all members of such Committee shall consent to such action in writing and such
writing or writings are filed with the minutes of the proceedings of the
Committee.

                                       7
<PAGE>

          1.30    Regulations; Manner of Acting.  Each such Committee may fix
                  -----------------------------
its own rules of procedure and may meet at such place (within or without the
State of Delaware), at such time and upon such notice, if any, as it shall
determine from time to time. Each such Committee shall keep minutes of its
proceedings and shall report such proceedings to the Board of Directors at the
meeting of the Board of Directors next following any such proceeding. The
members of any such Committee shall act only as a Committee, and the individual
members of such Committee shall have no power as such.

          1.31    Action by Telephonic Communications.  Members of any Committee
                  -----------------------------------
designated by the Board of Directors may participate in a meeting of such
Committee by means of conference telephone or similar communications equipment
by means of which all persons participating in the meeting can hear each other,
and participation in a meeting pursuant to this provision shall constitute
presence in person at such meeting.

          1.32    Resignation.  Any member (and any alternate member) of any
                  -----------
Committee may resign at any time by delivering a written notice of resignation,
signed by such member, to the Chairman of the Board or the President. Unless
otherwise specified therein, such resignation shall take effect upon delivery.

          1.33    Removal.  Any member (any alternate member) of any Committee
                  -------
may be removed at any time, with or without cause, by resolution adopted by a
majority of the whole Board of Directors.

          1.34    Vacancies.  If any vacancy shall occur in any Committee, by
                  ---------
reason of death, resignation, removal or otherwise, the remaining members (and
any alternate members) shall continue to act, and any such vacancy may be filled
by the Board of Directors or the remaining members of the Committee as provided
in Section 3.1 hereof.


                                  ARTICLE 4.

                                   OFFICERS

          1.35    Titles.  The officers of the Corporation shall be chosen by
                  ------
the Board of Directors and shall be a Chairman of the Board, the President, an
Vice President/Chief Operating Officer, an Executive Vice President/General
Counsel, one or more Vice Presidents, a Secretary and a Treasurer. The Board of
Directors also may elect one or more Assistant Secretaries and Assistant
Treasurers in such numbers as the Board of Directors may determine, and shall
also elect a Chairman of the Board. Any number of offices may be held by the
same person. No officer need be a Director of the Corporation.

                                       8
<PAGE>

          1.36    Election.  Unless otherwise determined by the Board of
                  --------
Directors, the officers of the Corporation shall be elected by the Board of
Directors at the annual meeting of the Board of Directors, and shall be elected
to hold office until the next succeeding annual meeting of the Board of
Directors. In the event of the failure to elect officers at such annual meeting,
officers may be elected at any regular or special meeting of the Board of
Directors. Each officer shall hold office until his successor has been elected
and qualified, or until his earlier death, resignation or removal.

          1.37    Salaries.  The salaries of all officers of the Corporation
                  --------
shall be fixed by the Board of Directors.

          1.38    Removal and Resignation; Vacancies.  Any officer may be
                  ----------------------------------
removed with or without cause at any time by the Board of Directors. Any officer
may resign at any time by delivering a written notice of resignation, signed by
such officer, to the Board of Directors or the Chairman of the Board. Unless
otherwise specified therein, such resignation shall take effect upon delivery.
Any vacancy occurring in any office of the Corporation by death, resignation,
removal or otherwise, shall be filled by the Board of Directors.

          1.39    Authority and Duties.  The officers of the Corporation shall
                  --------------------
have such authority and shall exercise such powers and perform such duties as
may be specified in these Bylaws, except that in any event each officer shall
exercise such powers and perform such duties as may be required by law.

          1.40    The Chairman of the Board.  The Chairman of the Board shall
                  -------------------------
preside at all meetings of the stockholders and directors. He shall also perform
all duties and exercise all powers usually pertaining to the office of a
Chairman of the Board of a corporation. He shall see that all orders and
resolutions of the Board of Directors are carried into effect. The Chairman of
the Board shall perform such other duties and have such other powers as the
Board of Directors may from time to time prescribe.

          1.41    The President.  The President shall be the chief executive
                  -------------
officer of the Corporation and shall see that all orders and resolutions of the
Board of Directors are carried into effect. In the absence of the Chairman of
the Board, the President shall preside at all meetings of the stockholders and
directors. He shall manage and administer the Corporation's business and affairs
and shall also perform all duties and exercise all powers usually pertaining to
the office of a chief executive officer of a corporation. He shall have the
authority to sign, in the name and on behalf of the Corporation, checks, orders,
contracts, leases, notes, drafts and other documents and instruments in
connection with the business of the Corporation and, together with the Secretary
or an Assistant Secretary, conveyances of real estate and other documents and
instruments to which the seal of the Corporation is affixed. He shall have the
authority to cause the employment or appointment of such employees and agents of
the Corporation as the conduct of the

                                       9
<PAGE>

business of the Corporation may require, to fix their compensation, and to
remove or suspend any employee or agent elected or appointed by the Board of
Directors. The President shall perform such other duties and have such other
powers as the Board of Directors may from time to time prescribe.

          1.42    Vice President/Chief Operating Officer.  The Vice
                  --------------------------------------
President/Chief Operating Officer shall, subject to the direction of the Board
of Directors and the President, perform all duties and exercise all powers
usually pertaining to the office of a chief operating officer of a corporation.
He shall have the authority to sign, in the name and on behalf of the
Corporation, checks, orders, contracts, leases, notes, drafts and other
documents and instruments in connection with the business of the Corporation
and, together with the President, Secretary or an Assistant Secretary,
conveyances of real estate and other documents and instruments to which the seal
of the Corporation is affixed. He shall have the authority to cause the
employment or appointment of such employees and agents of the Corporation as the
conduct of the business of the Corporation may require, to fix their
compensation, and to remove or suspend any employee or agent elected or
appointed by the Board of Directors. The Vice President/Chief Operating Officer
shall perform such other duties and have such other powers as the Board of
Directors may from time to time prescribe.

          1.43    Executive Vice President/General Counsel.  The Executive Vice
                  ----------------------------------------
President/General Counsel shall, subject to the directions of the Board of
Directors, have general control and supervision of legal and regulatory policies
and operations of the Corporation.  He shall also be the chief business
development officer of the Corporation and in connection therewith shall perform
all duties and exercise all powers usually pertaining to the office of a chief
business development officer.  He shall have the authority to sign, in the name
and on behalf of the Corporation, checks, orders, contracts, leases, notes,
drafts and other documents and instruments in connection with the business of
the Corporation and, together with the Secretary or an Assistant Secretary,
conveyances of real estate and other documents and instruments to which the seal
of the Corporation is affixed.  He shall have the authority to cause the
employment or appointment of such employees and agents of the Corporation as the
conduct of the business of the Corporation may require, to fix their
compensation, and to remove or suspend any employee or agent elected or
appointed by the Board of Directors, other than the President or Vice
President/Chief Operating Officer.  The Executive Vice President/General Counsel
shall perform such other duties and have such other powers as the Board of
Directors may from time to time prescribe.

          1.44    The Vice Presidents.  Each Vice President shall perform such
                  -------------------
duties and exercise such powers as may be assigned to him from time to time by
the President. In the absence of the President, the duties of the President
shall be performed and his powers may be exercised by such Vice President as
shall be designated by the President, or failing such designation, such duties
shall be performed and such powers may be exercised by each Vice

                                      10
<PAGE>

President in the order of their election to that office; subject in any case to
review and superseding action by the President.

          1.45    The Secretary.  The Secretary shall have the following powers
                  -------------
and duties:

          (1)     He shall keep or cause to be kept a record of all the
proceedings of the meetings of the stockholders and of the Board of Directors in
books provided for that purpose.

          (2)     He shall cause all notices to be duly given in accordance with
the provisions of these Bylaws and as required by law.

          (3)     Whenever any Committee shall be appointed pursuant to a
resolution of the Board of Directors, he shall furnish a copy of such resolution
to the members of such Committee.

          (4)     He shall be the custodian of the records and of the seal of
the Corporation and cause such seal (or a facsimile thereof) to be affixed to
all certificates representing shares of the Corporation prior to the issuance
thereof and to all instruments the execution of which on behalf of the
Corporation under its seal shall have been duly authorized in accordance with
these Bylaws, and when so affixed he may attest to same.

          (5)     He shall properly maintain and file all books, reports,
statements, certificates and all other documents and records required by law,
the Certificate of Incorporation or these Bylaws.

          (6)     He shall have charge of the stock books and ledgers of the
Corporation and shall cause the stock and transfer books to be kept in such
manner as to show at any time the number of shares of stock of the Corporation
of each class issued and outstanding, the names (alphabetically arranged) and
the addresses of the holders of record of such shares, the number of shares held
by each holder and the date as of which each became such holder of record.

          (7)     He shall sign (unless the Treasurer, an Assistant Treasurer or
Assistant Secretary shall have signed) certificates representing shares of the
Corporation the issuance of which shall have been authorized by the Board of
Directors.

          (8)     He shall perform, in general, all duties incident to the
office of secretary and such other duties as may be specified in these Bylaws or
as may be assigned to him from time to time by the Board of Directors or the
President.

          1.46    The Treasurer.  The Treasurer shall be the chief financial
                  -------------
officer of the corporation and shall have the following powers and duties:

                                      11
<PAGE>

          (1)     He shall have charge and supervision over and be responsible
for the moneys, securities, receipts and disbursements of the Corporation, and
shall keep or cause to be kept full and accurate records of all receipts of the
Corporation.

          (2)     He shall cause the moneys and other valuable effects of the
Corporation to be deposited in the name and to the credit of the Corporation in
such banks or trust companies or with such bankers or other depositaries as
shall be selected in accordance with Section 8.5 of these Bylaws.

          (3)     He shall cause moneys of the Corporation to be disbursed by
checks or drafts (signed as provided in Section 8.6 of these Bylaws) upon the
authorized depositories of the Corporation and cause to be taken and preserved
proper vouchers for all moneys disbursed.

          (4)     He shall render to the Board of Directors or the President,
whenever requested, a statement of the financial condition of the Corporation
and of all his transactions as Treasurer, and render a full financial report at
the annual meeting of the stockholders, if called upon to do so.

          (5)     He shall be empowered from time to time to require from all
officers or agents of the Corporation reports or statements giving such
information as he may desire with respect to any and all financial transactions
of the Corporation.

          (6)     He may sign (unless an Assistant Treasurer or the Secretary or
an Assistant Secretary shall have signed) certificates representing stock of the
Corporation the issuance of which shall have been authorized by the Board of
Directors.

          (7)     He shall perform, in general, all duties incident to the
office of treasurer and such other duties as may be specified in these Bylaws or
as may be assigned to him from time to time by the Board of Directors, or the
President.

          1.47    Additional Officers.  The Board of Directors may appoint such
                  -------------------
other officers and agents as it my deem appropriate, and such other officers and
agents shall hold their offices for such terms and shall exercise such powers
and perform such duties as may be determined from time to time by the Board of
Directors. The Board of Directors from time to time may delegate to any officer
or agent the power to appoint subordinate officers or agents and to prescribe
their respective rights, terms of office, authorities and duties. Any such
officer or agent may remove any such subordinate officer or agent appointed by
him, with or without cause.

                                      12
<PAGE>

          1.48    Security.  The Board of Directors may direct that the
                  --------
Corporation secure the fidelity of any or all of its officers or agents by bond
or otherwise.


                                  ARTICLE 5.

                                 CAPITAL STOCK

          1.49    Certificates of Stock, Uncertificated Shares.  The shares of
                  --------------------------------------------
the Corporation shall be represented by certificates, provided that the Board of
Directors may provide by resolution that some or all of any or all classes or
series of the stock of the Corporation shall be uncertificated shares. Any such
resolution shall not apply to shares represented by a certificate until each
certificate is surrendered to the Corporation. Notwithstanding the adoption of
such a resolution by the Board of Directors, every holder of stock in the
Corporation represented by certificates and upon request every holder of
uncertificated shares shall be entitled to have a certificate signed by, or in
the name of the Corporation, by the Chairman of the Board, President or a Vice
President, and by the Treasurer or an Assistant Treasurer, or the Secretary or
an Assistant Secretary, representing the number of shares registered in
certificate form. Such certificate shall be in such form as the Board of
Directors may determine, to the extent consistent with applicable law, the
Certificate of Incorporation and these Bylaws.

          1.50    Signatures; Facsimile.  All of such signatures on the
                  ---------------------
certificate may be a facsimile, engraved or printed, to the extent permitted by
law. In case any officer, transfer agent or registrar who has signed, or whose
facsimile signature has been placed upon a certificate shall have ceased to be
such officer, transfer agent or registrar before such certificate is issued, it
may be issued by the Corporation with the same effect as if he were such
officer, transfer agent or registrar at the date of issue.

          1.51    Lost, Stolen or Destroyed Certificates.  The Secretary of the
                  --------------------------------------
Corporation may cause a new certificate of stock or uncertificated shares in
place of any certificate therefor issued by the Corporation, alleged to have
been lost, stolen or destroyed, upon delivery to the Secretary of an affidavit
of the owner or owners of such certificate, or his or their legal representative
setting forth such allegation.  The Secretary may require the owner or owners of
such lost, stolen or destroyed certificate, or his or their legal
representative, to give the Corporation a bond sufficient to indemnify it
against any claim that may be made against it on account of the alleged loss,
theft or destruction of any such certificate or the issuance of any such new
certificate or uncertificated shares.

          1.52    Transfer of Stock.  Upon surrender to the Corporation or the
                  -----------------
transfer agent of the Corporation of a certificate for shares, duly endorsed or
accompanied by appropriate evidence of succession, assignment or authority to
transfer, the Corporation shall issue a new

                                      13
<PAGE>

certificate to the person entitled thereto, cancel the old certificate and
record the transaction upon its books. Within a reasonable time after the
transfer of uncertificated stock, the Corporation shall send to the registered
owner thereof a written notice containing the information required to be set
forth or stated on certificates pursuant to Section 151, 156, 202(a) or 218(a)
of the General Corporation Law. Subject to the provisions of the Certificate of
Incorporation and these Bylaws, the Board of Directors may prescribe such
additional rules and regulations as it may deem appropriate relating to the
issue, transfer and registration of shares of the Corporation.

          1.53    Record Date.  In order to determine the stockholders entitled
                  -----------
to notice of or to vote at any meeting of stockholders or any adjournment
thereof, or entitled to express consent to corporate action in writing without a
meeting, or entitled to receive payment of any dividend or other distribution or
allotment of any rights, or entitled to exercise any rights in respect of any
change, conversion or exchange of stock or for the purpose of any other lawful
action, the Board of Directors may fix, in advance, a record date, which shall
not be more than 60 nor less than ten days before the date of such meeting, nor
more than 60 days prior to any other action. A determination of stockholders of
record entitled to notice of or to vote at a meeting of stockholders shall apply
to any adjournment of the meeting, provided, however, that the Board of
Directors may fix a new record date for the adjourned meeting.

          1.54    Registered Stockholders.  Prior to due surrender of a
                  -----------------------
certificate for registration of transfer, the Corporation may treat the
registered owner as the person exclusively entitled to receive dividends and
other distributions, to vote, to receive notice and otherwise to exercise all
the rights and powers of the owner of the shares represented by such
certificate, and the Corporation shall not be bound to recognize any equitable
or legal claim to or interest in such shares on the part of any other person,
whether or not the Corporation shall have notice of such claim or interest.
Whenever any transfer of shares shall be made for collateral security, and not
absolutely, it shall be so expressed in the entry of the transfer if, when the
certificates are presented to the Corporation for transfer or uncertificated
shares are requested to be transferred, both the transferor and transferee
request the Corporation to do so.

          1.55    Transfer Agent and Registrar.  The Board of Directors may
                  ----------------------------
appoint one or more transfer agents and registrars, and may require all
certificates representing shares to bear the signature of any such transfer
agents or registrars.


                                  ARTICLE 6.

                                INDEMNIFICATION


                                      14
<PAGE>

          1.56    Indemnification.  The Corporation shall, to the fullest extent
                  ---------------
permitted by applicable law from time to time in effect, indemnify any and all
persons who may serve or who have served at any time as Directors or officers of
the Corporation, or who at the request of the Corporation may serve or at any
time have served as Directors or officers of another corporation (including
subsidiaries of the Corporation) or of any partnership, joint venture, trust or
other enterprise, from and against any and all of the expenses, liabilities or
other matters referred to in or covered by said law. Such indemnification shall
continue as to a person who has ceased to be a Director or officer and shall
inure to the benefit of the heirs, executors and administrators of such a
person. The Corporation may also indemnify any and all other persons whom it
shall have power to indemnify under any applicable law from time to time in
effect to the extent authorized by the Board of Directors and permitted by such
law. The indemnification provided by this Article shall not be deemed exclusive
of any other rights to which any person may be entitled under any provision of
the Certificate of Incorporation, other Bylaw, agreement, vote of stockholders
or disinterested Directors, or otherwise, both as to action in his official
capacity and as to action in another capacity while holding such office.

          1.57    Definition.  For purposes of this Article, the term
                  ----------
"Corporation" shall include constituent corporations referred to in Subsection
(h) of Section 145 of the General Corporation Law (or any similar provision of
applicable law at the time in effect).


                                  ARTICLE 7.

                                   OFFICES

          1.58    Registered Office.  The registered office of the Corporation
                  -----------------
in the State of Delaware shall be located at Corporation Trust Center, 1209
Orange Street, Wilmington, New Castle County, Delaware 19801, and the
Corporation's registered agent shall be The Corporation Trust Company.

          1.59    Other Offices.  The Corporation may maintain offices or places
                  -------------
of business at such other locations within or without the State of Delaware as
the Board of Directors may from time to time determine or as the business of the
Corporation may require.

                                      15
<PAGE>

                                  ARTICLE 8.

                              GENERAL PROVISIONS

          1.60    Dividends.  Subject to any applicable provisions of law and
                  ---------
the Certificate of Incorporation, dividends upon the shares of the Corporation
may be declared by the Board of Directors at any regular or special meeting of
the Board of Directors and any such dividend may be paid in cash, property, or
shares of the Corporation.

          1.61    Reserves.  There may be set aside out of any funds of the
                  --------
Corporation available for dividends such sum or sums as the Board of Directors
from time to time, in its absolute discretion, thinks proper as a reserve or
reserves to meet contingencies, or for equalizing dividends, or for repairing or
maintaining any property of the Corporation or for such other purpose as the
Board of Directors shall think conducive to the interest of the Corporation, and
the Board of Directors may similarly modify or abolish any such reserve.

          1.62    Execution of Instruments.  The President, any Executive Vice
                  ------------------------
President, any Vice President, the Secretary or the Treasurer may enter into any
contract or execute and deliver any instrument in the name and on behalf of the
Corporation. The Board of Directors or the President may authorize any other
officer or agent to enter into any contract or execute and deliver any
instrument in the name and on behalf of the Corporation. Any such authorization
may be general or limited to specific contracts or instruments.

          1.63    Corporate Indebtedness.  No loan shall be contracted on behalf
                  ----------------------
of the Corporation, and no evidence of indebtedness shall be issued in its name,
unless authorized by the Board of Directors. Such authorization may be general
or confined to specific instances. Loans so authorized may be effected at any
time for the Corporation from any bank, trust company or other institution, or
from any firm, corporation or individual. All bonds, debentures, notes and other
obligations or evidences of indebtedness of the Corporation issued for such
loans shall be made, executed and delivered as the Board of Directors shall
authorize. When so authorized by the Board of Directors, any part of or all the
properties, including contract rights, assets, business or good will of the
Corporation, whether then owned or thereafter acquired, may be mortgaged,
pledged, hypothecated or conveyed or assigned in trust as security for the
payment of such bonds, debentures, notes and other obligations or evidences of
indebtedness of the Corporation, and of any interest thereon, by instruments
executed and delivered in the name of the Corporation.

          1.64    Deposits.  Any funds of the Corporation may be deposited from
                  --------
time to time in such banks, trust companies or other depositaries as may be
determined by the Board of Directors or the President, or by such officers or
agents as may be authorized by the Board of Directors or the President to make
such determination.

                                      16
<PAGE>

          1.65    Checks.  All checks or demands for money and notes of the
                  ------
Corporation shall be signed by such officer or officers or such agent or agents
of the Corporation, and in such manner, as the Board of Directors, the Chairman
of the Board, or the President from time to time may determine.

          1.66    Sale, Transfer, etc. of Securities.  To the extent authorized
                  ----------------------------------
by the Board of Directors or by the President, any Vice President, the Secretary
or the Treasurer, or any other officers designated by the Board of Directors,
the Chairman of the Board, or the President may sell, transfer, endorse, and
assign any shares of stock, bonds or other securities owned by or held in the
name of the Corporation, and may make, execute and deliver in the name of the
Corporation, under its corporate seal, any instruments that may be appropriate
to effect any such sale, transfer, endorsement or assignment.

          1.67    Voting as Stockholder.  Unless otherwise determined by
                  ---------------------
resolution of the Board of Directors, the President or any Vice President shall
have full power and authority on behalf of the Corporation to attend any meeting
of stockholders of any corporation in which the Corporation may hold stock, and
to act, vote (or execute proxies to vote) and exercise in person or by proxy all
other rights, powers and privileges incident to the ownership of such stock.
Such officers acting on behalf of the Corporation shall have full power and
authority to execute any instrument expressing consent to or dissent from any
action of any such corporation without a meeting. The Board of Directors may by
resolution from time to time confer such power and authority upon any other
person or persons.

          1.68    Fiscal Year.  The fiscal year of the Corporation shall
                  -----------
commence on the first day of January of each year (except for the Corporation's
first fiscal year which shall commence on the date of incorporation) and shall
end in each case on December 31.

          1.69    Seal.  The seal of the Corporation shall be circular in form
                  ----
and shall contain the name of the Corporation, the year of its incorporation and
the words "Corporate Seal" and "Delaware". The form of such seal shall be
subject to alteration by the Board of Directors. The seal may be used by causing
it or a facsimile thereof to be impressed, affixed or reproduced, or may be used
in any other lawful manner.

          1.70    Books and Records.  Except to the extent otherwise required by
                  -----------------
law, the books and records of the Corporation shall be kept at such place or
places within or without the State of Delaware as may be determined from time to
time by the Board of Directors.

                                      17
<PAGE>

                                  ARTICLE 9.

                              AMENDMENT OF BYLAWS

          1.71    Amendment.  Except as set forth in the Certificate of
                  ---------
Incorporation, these Bylaws may be amended, altered or repealed at any regular
or special meeting of the stockholders by the holders of shares of Common Stock
representing at least two-thirds (2/3) of the votes entitled to be cast if, in
the case of a special meeting only, notice of such amendment, alteration or
repeal is contained in the notice or waiver of notice of such meeting.


                                  ARTICLE 10.

                                 CONSTRUCTION

          1.72    Construction.  In the event of any conflict between the
                  ------------
provisions of these Bylaws as in effect from time to time and the provisions of
the Certificate of Incorporation as in effect from time to time, the provisions
of the Certificate of Incorporation shall be controlling.

                                      18
<PAGE>

                               TABLE OF CONTENTS
                               -----------------

<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
ARTICLE 1 -- STOCKHOLDERS................................................     1
     1.1   Annual Meeting................................................     1
     1.2   Special Meetings..............................................     1
     1.3   Notice of Meetings; Waiver....................................     1
     1.4   Quorum........................................................     2
     1.5   Voting........................................................     2
     1.6   Voting by Ballot..............................................     2
     1.7   Adjournment...................................................     2
     1.8   Proxies.......................................................     2
     1.9   Organization; Procedure.......................................     3
     1.10  Consent of Stockholders in Lieu of Meeting....................     3

ARTICLE 2 -- BOARD OF DIRECTORS..........................................     3
     2.1   General Powers................................................     3
     2.2   Number and Term of Office.....................................     3
     2.3   Election of Directors.........................................     3
     2.4   Annual and Regular Meetings...................................     4
     2.5   Special Meetings; Notice......................................     4
     2.6   Quorum; Voting................................................     4
     2.7   Adjournment...................................................     4
     2.8   Action Without a Meeting......................................     5
     2.9   Regulations; Manner of Acting.................................     5
     2.10  Action by Telephonic Communications...........................     5
     2.11  Resignation...................................................     5
     2.12  Removal of Directors..........................................     5
     2.13  Vacancies and Newly Created Directorships.....................     5
     2.14  Compensation..................................................     6
     2.15  Reliance on Accounts and Reports, etc.........................     6

ARTICLE 3 -- EXECUTIVE COMMITTEE AND OTHER COMMITTEES....................     6
     3.1   How Constituted...............................................     6
     3.2   Powers........................................................     6
     3.3   Quorum; Voting................................................     7
     3.4   Action without a Meeting......................................     7
     3.5   Regulations; Manner of Acting.................................     7
     3.6   Action by Telephonic Communications...........................     7
     3.7   Resignation...................................................     7
</TABLE>

                                       i

<PAGE>

<TABLE>
<S>                                                                          <C>

     3.8   Removal.......................................................     7
     3.9   Vacancies.....................................................     7

ARTICLE 4 -- OFFICERS....................................................     8
     4.1   Titles........................................................     8
     4.2   Election......................................................     8
     4.3   Salaries......................................................     8
     4.4   Removal and Resignation; Vacancies............................     8
     4.5   Authority and Duties..........................................     8
     4.6   The Chairman of the Board.....................................     8
     4.7   The President.................................................     8
     4.8   Vice President/Chief Operating Officer........................     9
     4.9   Executive Vice President/General Counsel......................     9
     4.10  The Vice Presidents...........................................    10
     4.11  The Secretary.................................................    10
     4.12  The Treasurer.................................................    11
     4.13  Additional Officers...........................................    11
     4.14  Security......................................................    12

ARTICLE 5 -- CAPITAL STOCK...............................................    12
     5.1   Certificates of Stock, Uncertificated Shares..................    12
     5.2   Signatures; Facsimile.........................................    12
     5.3   Lost, Stolen or Destroyed Certificates........................    12
     5.4   Transfer of Stock.............................................    12
     5.5   Record Date...................................................    13
     5.6   Registered Stockholders.......................................    13
     5.7   Transfer Agent and Registrar..................................    13

ARTICLE 6 -- INDEMNIFICATION.............................................    13
     6.1   Indemnification...............................................    13
     6.2   Definition....................................................    14

ARTICLE 7 -- OFFICES.....................................................    14
     7.1   Registered Office.............................................    14
     7.2   Other Offices.................................................    14

ARTICLE 8 -- GENERAL PROVISIONS..........................................    14
     8.1   Dividends.....................................................    14
     8.2   Reserves......................................................    14
     8.3   Execution of Instruments......................................    15
     8.4   Corporate Indebtedness........................................    15
</TABLE>

                                      ii
<PAGE>

<TABLE>
<S>                                                                          <C>
     8.5   Deposits......................................................    15
     8.6   Checks........................................................    15
     8.7   Sale, Transfer, etc. of Securities............................    15
     8.8   Voting as Stockholder.........................................    15
     8.9   Fiscal Year...................................................    16
     8.10  Seal..........................................................    16
     8.11  Books and Records.............................................    16

ARTICLE 9 -- AMENDMENT OF BYLAWS.........................................    16
     9.1   Amendment.....................................................    16

ARTICLE 10 -- CONSTRUCTION...............................................    16
     10.1  Construction..................................................    16
</TABLE>

                                      iii

<PAGE>

                                                                     EXHIBIT 4.1
                                                                     -----------
                                                                  EXECUTION COPY



================================================================================



                              TeleCorp PCS, Inc.

              11 5/8% Senior Subordinated Discount Notes due 2009



                           ------------------------


                                   INDENTURE



                          Dated as of April 23, 1999



                           ------------------------



                            Bankers Trust Company,

                                    Trustee





================================================================================
<PAGE>

                              INDENTURE dated as of April 23, 1999, among
                    TeleCorp PCS, Inc., a Delaware corporation (the "Company"),
                    TeleCorp Communications, Inc. (the "Subsidiary Guarantor")
                    and Bankers Trust Company, a New York banking corporation,
                    as trustee (the "Trustee").


               Each party agrees as follows for the benefit of the other parties
and for the equal and ratable benefit of the Holders of (i) the Company's 11
5/8% Senior Subordinated Discount Notes due 2009 issued on the date hereof (the
"Initial Securities"), (ii) if and when issued as provided in the Registration
Agreement (as defined in Appendix A hereto (the "Appendix")), the Company's 11
5/8% Senior Subordinated Discount Notes due 2009 issued in the Registered
Exchange Offer (as defined in the Appendix) in exchange for any Initial
Securities (the "Exchange Securities") and (iii) if and when issued as provided
in the Registration Agreement, the Private Exchange Securities (as defined in
the Appendix, and together with the Initial Securities and any Exchange
Securities issued hereunder, the "Securities") issued in the Private Exchange
(as defined in the Appendix). Except as otherwise provided herein, the
Securities shall be limited to $575,000,000 in aggregate principal amount at
maturity outstanding.
<PAGE>

                                                                               2

                                    ARTICLE 1


                   Definitions and Incorporation by Reference
                   ------------------------------------------

          SECTION 1.01.  Definitions.
                         ------------

          "Accreted Value" means, as of any date of determination prior to April
15, 2004, the sum of:

          (1) the initial offering price of each Security; and

          (2) the portion of the excess of the principal amount of each Security
     over such initial offering price which shall have been amortized by the
     Company in accordance with GAAP through such date, such amount to be so
     amortized on a daily basis and compounded semiannually on each interest
     payment date at a rate of 11 5/8% per annum from the date of the Indenture
     through the date of determination computed on the basis of a 360-day year
     of twelve 30-day months.

          "Acquired Indebtedness" means, with respect to any Person,
Indebtedness of such Person:

          (1)  existing at the time such Person becomes a Restricted Subsidiary;
     or

          (2)  assumed in connection with the acquisition of assets from another
     Person, including Indebtedness Incurred in connection with, or in
     contemplation of, such Person becoming a Restricted Subsidiary or such
     acquisition, as the case may be.

          "Acquisitions" means the Digital Acquisition, the Puerto Rico
Acquisition and the Wireless 2000 Acquisition.

          "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by, or under direct or indirect common
control with, any specified Person. For purposes of this definition, "control"
when used with respect to any Person means the power to direct the management
and policies of such Person, directly or indirectly, whether through the
ownership of voting securities, by contract or otherwise; and the terms
"controlling" and "controlled" have meanings correlative to the foregoing.

          "Annualized Pro Forma Consolidated Operating Cash Flow" means
Consolidated Cash Flow for the latest two full fiscal quarters for which
consolidated financial statements of the Company are available multiplied by
two.  For purposes of calculating "Consolidated Cash Flow" for any period for
purposes of this definition only:

          (1) any Subsidiary of the Company that is a Restricted Subsidiary on
     the date of the transaction giving rise to the need to calculate
     "Annualized Pro Forma Consolidated Operating Cash Flow" (the "Transaction
     Date") shall be deemed to have been a Restricted Subsidiary at all times
     during such period; and
<PAGE>

                                                                               3

          (2) any Subsidiary of the Company that is not a Restricted Subsidiary
     on the Transaction Date shall be deemed not to have been a Restricted
     Subsidiary at any time during such period.

In addition to and without limitation of the foregoing, for purposes of this
definition only, "Consolidated Cash Flow" shall be calculated after giving
effect on a pro forma basis for the applicable period to, without duplication,
any Asset Dispositions or Asset Acquisitions (including, without limitation, any
Asset Acquisition giving rise to the need to make such calculation as a result
of the Company or one of the Restricted Subsidiaries (including any Person who
becomes a Restricted Subsidiary as a result of the Asset Acquisition) Incurring,
assuming or otherwise being liable for Acquired Indebtedness) occurring during
the period commencing on the first day of such two-fiscal-quarter period to and
including the Transaction Date (the "Reference Period"), as if such Asset Sale
or Asset Acquisition occurred on the first day of the Reference Period.

          "Asset Acquisition" means:

          (1) any purchase or other acquisition (by means of transfer of cash,
     Indebtedness or other property to others or payment for property or
     services for the account or use of others or otherwise) of Capital Stock of
     any Person by the Company or any Restricted Subsidiary, in either case,
     pursuant to which such Person shall become a Restricted Subsidiary or shall
     be merged with or into the Company or any Restricted Subsidiary; or

          (2) any acquisition by the Company or any Restricted Subsidiary of the
     property or assets of any Person which constitute all or substantially all
     of an operating unit or line of business of such Person.

          "Asset Disposition" means any sale, transfer or other disposition
(including, without limitation, by merger, consolidation or Sale/Leaseback
Transaction) of:

          (1) shares of Capital Stock of a Subsidiary of the Company (other than
     directors' qualifying shares);

          (2) any License for the provision of wireless telecommunications
     services held by the Company or any Restricted Subsidiary (whether by sale
     of Capital Stock or otherwise); or

          (3) any other property or assets of the Company or any Subsidiary of
     the Company other than in the ordinary course of business;

provided, however, that an Asset Disposition shall not include:
- --------  -------

          (A) any sale, transfer or other disposition of shares of Capital
     Stock, property or assets by a Restricted Subsidiary to the Company or to
     any other Restricted Subsidiary or by the Company to any Restricted
     Subsidiary;

          (B) any sale, transfer or other disposition of defaulted receivables
     for collection;
<PAGE>

                                                                               4

          (C) the sale, lease, conveyance or disposition or other transfer of
     all or substantially all of the assets of the Company as permitted under
     Article 5;

          (D) any disposition that constitutes a Change of Control; or

          (E) any sale, transfer or other disposition of shares of Capital Stock
     of any Marketing Affiliate; provided that such Marketing Affiliate is not
                                 --------
     engaged in any activity other than the registration, holding, maintenance
     or protection of trademarks and the licensing thereof; or

          (F) any sale, transfer or other disposition that does not (together
     with all related sales, transfers or dispositions) involve aggregate
     consideration in excess of $5,000,000.

          "AT&T Wireless" means AT&T Wireless PCS Inc., a Delaware corporation.

          "Average Life" means, as of the date of determination, with respect to
any Indebtedness for borrowed money or Preferred Stock, the quotient obtained by
dividing:

          (1) the sum of the products of the number of years from the date of
     determination to the dates of each successive scheduled principal or
     liquidation value payments of such Indebtedness or Preferred Stock,
     respectively, and the amount of such principal or liquidation value
     payments by

          (2) the sum of all such principal or liquidation value payments.

          "Bank Indebtedness" means any and all amounts payable under or in
respect of the Credit Agreement and any Refinancing Indebtedness with respect
thereto, as amended from time to time, including principal, premium (if any),
interest (including interest accruing on or after the filing of any petition in
bankruptcy or for reorganization relating to the Company whether or not a claim
for post-filing interest is allowed in such proceedings), fees, charges,
expenses, reimbursement obligations, guarantees and all other amounts payable
thereunder or in respect thereof.

          "Bankruptcy Law" means Title 11, United States Code, or any similar
                                           ------------------
federal or state law for the relief of debtors.

          "board of directors" of any Person means the board of directors,
management committee or other governing body of such Person.

          "BTA" means a Basic Trading Area, as defined in 47 C.F.R. (S)24.202.

          "Business Day" means any date which is not a Legal Holiday.

          "C-Block License" means any License in the C block as set forth in
parts 1 and 24 of Title 47 of the Code of Federal Regulations.
<PAGE>

                                                                               5

          "Capital Lease Obligations" of any Person means the obligations to pay
rent or other amounts under a lease of (or other Indebtedness arrangements
conveying the right to use) real or personal property of such Person which are
required to be classified and accounted for as a capital lease or liability on
the face of a balance sheet of such Person in accordance with GAAP. The amount
of such obligations shall be the capitalized amount thereof in accordance with
GAAP, and the Stated Maturity thereof shall be the date of the last payment of
rent or any other amount due under such lease prior to the first date upon which
such lease may be terminated by the lessee without payment of a penalty.

          "Capital Stock" of any Person means any and all shares, interests,
rights to purchase, warrants, options, participations or other equivalents of or
interests in (however designated) of corporate stock or other equity
participations, including partnership interests, whether general or limited, of
such Person.

          "Cash Equity Investors" means CB Capital Investors, L.P., Equity-
Linked Investors-II, Private Equity Investors III, L.P., Hoak Communications
Partners, L.P., HCP Capital Fund, L.P., Whitney Equity Partners, L.P., J. H.
Whitney III, L.P., Whitney Strategic Partners III, L.P., Entergy Technology
Holding Company, Media/ Communications Partners III Limited Partnership,
Media/Communications Investors Limited Partnership, One Liberty Fund III, L.P.,
One Liberty Fund IV, L.P., Toronto Dominion Investments, Inc., Northwood
Ventures LLC, Northwood Capital Partners LLC, Gerald Vento, Thomas Sullivan and
Gilde International B.V.

          "Cash Equivalents" means:

          (1) direct obligations of, or obligations the principal of and
     interest on which are unconditionally guaranteed by, the United States of
     America (or by any agency thereof to the extent such obligations are backed
     by the full faith and credit of the United States of America), in each case
     maturing within one year from the date of acquisition thereof;

          (2) investments in commercial paper maturing within 365 days from the
     date of acquisition thereof and having, at such date of acquisition, the
     highest credit rating obtainable from Standard & Poor's Corporation or from
     Moody's Investors Service;

          (3) investments in certificates of deposit, banker's acceptance and
     time deposits maturing within 365 days from the date of acquisition thereof
     issued or guaranteed by or placed with, and money market deposit accounts
     issued or offered by, any domestic office of any commercial bank organized
     under the laws of the United States of America or any State thereof which
     has a combined capital and surplus and undivided profits of not less than
     $500,000,000;

          (4) fully collateralized repurchase agreements with a term of not more
     than 30 days for securities described in clause (1) above and entered into
     with a financial institution satisfying the criteria described in clause
     (3) above; and

          (5) money market funds substantially all of whose assets comprise
     securities of the type described in clauses (1) through (3) above.
<PAGE>

                                                                               6

          "Change of Control" means the assurance of any of the following
events:

          (1) any "person" or "group" (as such terms are used in Sections 13(d)
     and 14(d) of the Exchange Act), other than a Permitted Holder or Permitted
     Holders or a person or group controlled by a Permitted Holder or Permitted
     Holders, becomes the "beneficial owner" (as defined in Rules 13d-3 and 13d-
     5 under the Exchange Act, except that a person shall be deemed to have
     "beneficial ownership" of all such securities that such person has the
     right to acquire within one year, upon the happening of an event or
     otherwise) directly or indirectly, of securities of the Company
     representing 50% or more of the combined voting power of the Company's then
     outstanding Voting Stock;

          (2) the following individuals cease for any reason to constitute more
     than a majority of the number of directors then serving on the board of
     directors of the Company:  individuals who, on the date of this Indenture,
     constitute the board of directors of the Company and any new director
     (other than a director whose initial assumption of office is in connection
     with an actual or threatened election contest, including, but not limited
     to, a consent solicitation relating to the election of directors of the
     Company) whose appointment or election by the board of directors of the
     Company or nomination for election by the Company's stockholders was
     approved by the vote of at least two-thirds of the directors then still in
     office or whose appointment, election or nomination was previously so
     approved or recommended or made in accordance with the terms of the
     Stockholders' Agreement; or

          (3) the stockholders of the Company shall approve any Plan of
     Liquidation (whether or not otherwise in compliance with the provisions of
     the Indenture).

          "Code" means the Internal Revenue Code of 1986, as amended.

          "Common Stock" of any Person means Capital Stock of such Person that
does not rank prior, as to the payment of dividends or as to the distribution of
assets upon any voluntary or involuntary liquidation, dissolution or winding up
of such Person, to shares of Capital Stock of any other class of such Person.

          "Commission" means the Securities and Exchange Commission.

          "Communications Act" means the Communications Act of 1934, and any
similar or successor Federal statute, and the rules and regulations and
published policies of the FCC thereunder, all as amended and as the same may be
in effect from time to time.

          "Company" means the party named as such in this Indenture until a
successor replaces it and, thereafter, means the successor and, for purposes of
any provision contained herein and required by the TIA, each other obligor on
the indenture securities.
<PAGE>

                                                                               7

          "Consolidated Cash Flow" of any Person means, for any period, the
Consolidated Net Income of such Person for such period:

          (1) increased (to the extent Consolidated Net Income for such period
     has been reduced thereby) by the sum of (without duplication):

               (A)  Consolidated Interest Expense of such Person for such
          period; plus

               (B)  Consolidated Income Tax Expense of such Person for such
          period; plus

               (C)  the consolidated depreciation and amortization expense of
          such Person and its Restricted Subsidiaries for such period; plus

               (D)  any other non-cash charges of such Person and its Restricted
          Subsidiaries for such period except for any non-cash charges that
          represent accruals of, or reserves for, cash disbursements to be made
          in any future accounting period; and

          (2) decreased (to the extent Consolidated Net Income for such period
     has been increased thereby) by any non-cash gains from Asset Dispositions.

          "Consolidated Income Tax Expense" of any Person means, for any period,
the consolidated provision for income taxes of such Person and its Restricted
Subsidiaries for such period calculated on a consolidated basis in accordance
with GAAP.

          "Consolidated Interest Expense" for any Person means, for any period,
without duplication:

          (1) the consolidated interest expense included in a consolidated
     income statement (without deduction of interest or finance charge income)
     of such Person and its Restricted Subsidiaries for such period calculated
     on a consolidated basis in accordance with GAAP (including, without
     limitation, (a) any amortization of debt discount, (b) the net costs under
     Hedging Agreements, (c) all capitalized interest, (d) the interest portion
     of any deferred payment obligation and (e) all amortization of any
     premiums, fees and expenses payable in connection with the Incurrence of
     any Indebtedness); plus

          (2) the interest component of Capital Lease Obligations paid, accrued
     and/or scheduled to be paid or accrued, by such Person and its Restricted
     Subsidiaries during such period as determined on a consolidated basis in
     accordance with GAAP.
<PAGE>

                                                                               8

          "Consolidated Net Income" of any Person means for any period the
consolidated net income (or loss) of such Person and its Restricted Subsidiaries
for such period determined on a consolidated basis in accordance with GAAP;
provided, however, that there shall be excluded therefrom:
- --------  -------

          (1) the net income (or loss) of any Person acquired by such Person or
     a Restricted Subsidiary of such Person in a pooling-of-interests
     transaction for any period prior to the date of such transaction;

          (2) the net income (but not loss) of any Restricted Subsidiary of such
     Person which is subject to restrictions which prevent or limit the payment
     of dividends or the making of distributions to such Person to the extent of
     such restrictions (regardless of any waiver thereof);

          (3) the net income of any Person that is not a Restricted Subsidiary
     of such Person, except to the extent of the amount of dividends or other
     distributions representing such Person's proportionate share of such other
     Person's net income for such period actually paid in cash to such Person by
     such other Person during such period;

          (4) gains or losses (other than for purposes of calculating
     Consolidated Net Income under clause (C) of paragraph (a) of Section 4.04)
     on Asset Dispositions by such Person or its Restricted Subsidiaries;

          (5) all extraordinary gains (but not, other than for purposes of
     calculating Consolidated Net Income under clause (C) of paragraph (a) under
     Section 4.04, losses) determined in accordance with GAAP; and

          (6) in the case of a successor to such Person by consolidation or
     merger or as a transferee of such Person's assets, any earnings (or losses)
     of the successor corporation prior to such consolidation, merger or
     transfer of assets.

          "Corporate Trust Office" means the principal office of the Trustee at
which at any particular time its corporate trust business shall be administered,
which office at the date of the execution of the Indenture is located at Four
Albany Street, New York, New York 10006. Attention:  Corporate Trust and Agency
Group, or such other address as the Trustee may designate from time to time by
notice to the Securityholders.

          "Credit Agreement" means the Credit Agreement dated as of July 17,
1998, as amended, waived or otherwise modified from time to time, among the
Company, the financial institutions named therein as lenders, The Chase
Manhattan Bank, as Administrative Agent and Issuing Bank, TD Securities (USA)
Inc., as Syndication Agent, and Bankers Trust Company, as Documentation Agent
(except to the extent that any such amendment, waiver or other modification
thereto would be prohibited by the terms of this Indenture, unless otherwise
agreed to by the holders of at least a majority in aggregate principal amount at
maturity of the Securities at the time outstanding).
<PAGE>

                                                                               9

          "Custodian" means any receiver, trustee, assignee, liquidator,
custodian or similar official under any Bankruptcy Law.

          "Default" means any event that is, or after notice or lapse of time or
both would become, an Event of Default.

          "Designated Senior Indebtedness" of the Company means:

          (1) so long as outstanding, Bank Indebtedness; and

          (2) so long as outstanding, any other Senior Indebtedness which has at
     the time of initial issuance an aggregate outstanding principal amount in
     excess of $25,000,000 and which has been so designated as Designated Senior
     Indebtedness by the board of directors of the Company at the time of its
     initial issuance in a resolution delivered to the Trustee. "Designated
     Senior Indebtedness" of a Subsidiary Guarantor has a correlative meaning.

          "Digital Acquisition" means the purchase by the Company from Digital
PCS of 10 MHz of F-Block Licenses for the Baton Rouge, Houma, Hammond and
Lafayette, Louisiana BTAs together with related assets.

          "Digital PCS" means Digital PCS, L.L.C.

          "Disqualified Stock" of any Person means any Capital Stock of such
Person which, by its terms (or by the terms of any security into which it is
convertible or for which it is exchangeable), or upon the happening of any
event, matures or is mandatorily redeemable, pursuant to a sinking fund
obligation or otherwise, or is redeemable at the option of the holder thereof,
in whole or in part, on or prior to the first anniversary of the Stated Maturity
of the Securities; provided, however, that any Capital Stock that would not
                   --------  -------
constitute Disqualified Stock but for provisions thereof giving holders thereof
the right to require such Person to repurchase or redeem such Capital Stock upon
the occurrence of an "asset sale" or "change of control" occurring prior to the
first anniversary of the Stated Maturity of the Securities shall not constitute
Disqualified Stock if the "asset sale" or "change of control" provisions
applicable to such Capital Stock are no more favorable to the holders of such
Capital Stock than the provisions of Section 4.08.

          "Equipment Subsidiary" means TeleCorp Equipment Leasing L.P. and/or
any other Wholly Owned Subsidiary of the Company designated as an Equipment
Subsidiary under the Credit Agreement.

          "Equity Offering" means any public or private sale of Qualified Stock
made on a primary basis by the Company, including through the issuance or sale
of Qualified Stock to one or more Strategic Equity Investors.

          "Exchange Act" means the Securities Exchange Act of 1934, as amended,
and the rules and regulations promulgated by the Commission thereunder.
<PAGE>

                                                                              10

          "Exchange and Registration Rights Agreement" means the Exchange and
Registration Rights Agreement, to be dated the date of this Indenture, among the
Company, the Subsidiary Guarantor and the Initial Purchasers.

          "Exchange Securities" means, collectively, debt securities of the
Company that are identical in all material respects to the Securities, except
for transfer restrictions relating to the Securities, issued in a like aggregate
principal amount at maturity of the Securities originally issued pursuant to the
Exchange and Registration Rights Agreement.

          "Exchange Offer" means a registered exchange offer for the Securities
undertaken by the Company pursuant to the Exchange and Registration Rights
Agreement.

          "Excluded Cash Proceeds" means the first $128,000,000 of net cash
proceeds received by the Company subsequent to the date of this Indenture from
capital contributions in respect of Qualified Stock of the Company or from the
issue or sale (other than to a Restricted Subsidiary) of Qualified Stock of the
Company.

          "Expiration Date" means the expiration date with respect to any Offer
to Purchase.

          "F-Block License" means any License in the F block as set forth in
parts 1 and 24 of Title 47 of the Code of Federal Regulations.

          "Fair Market Value" means, with respect to any asset or property, the
price that could be negotiated in an arm's-length free market transaction, for
cash, between a willing seller and a willing buyer, neither of which is under
pressure or compulsion to complete the transaction. Unless otherwise specified
in this Indenture, Fair Market Value shall be determined by the board of
directors of the Company acting in good faith.

          "FCC" means the Federal Communications Commission, or any other
similar or successor agency of the Federal government administering the
Communications Act.

          "FCC Debt" means Indebtedness owed to the United States Treasury
Department or the FCC that is incurred in connection with the acquisition of a
License.

          "GAAP" means generally accepted accounting principles, consistently
applied, as in effect from time to time in the United States of America, as set
forth in the opinions and pronouncements of the Accounting Principles Board of
the American Institute of Certified Public Accountants and statements and
pronouncements of the Financial Accounting Standards Board or in such other
statements by such other entity as is approved by a significant segment of the
accounting profession in the United States.

          "Hedging Agreement" means any interest rate, currency or commodity
swap agreement, interest rate, currency or commodity future agreement, interest
rate cap or collar agreement, interest rate, currency or commodity hedge
agreement and any put, call or other agreement designed to protect against
fluctuations in interest rates, currency exchange rates or commodity prices.
<PAGE>

                                                                              11


          "Holder" or "Securityholder" means the Person in whose name a Security
is registered on the registrar's books.

          "Incur" means, with respect to any Indebtedness or other obligation of
any Person, to create, issue, incur (including by conversion, exchange or
otherwise), assume, guarantee or otherwise become liable in respect of such
Indebtedness or other obligation or the recording, as required pursuant to GAAP
or otherwise, of any such Indebtedness or other obligation on the balance sheet
of such Person (and "Incurrence," "Incurred" and "Incurring" shall have meanings
correlative to the foregoing).  Indebtedness of any Person or any of its
Restricted Subsidiaries existing at the time such Person becomes a Restricted
Subsidiary (or is merged into, or consolidates with, the Company or any
Restricted Subsidiary), whether or not such Indebtedness was Incurred in
connection with, or in contemplation of, such Person becoming a Restricted
Subsidiary (or being merged into, or consolidated with, the Company or any
Restricted Subsidiary), shall be deemed Incurred at the time any such Person
becomes a Restricted Subsidiary or merges into, or consolidates with, the
Company or any Restricted Subsidiary.

          "Indebtedness" means (without duplication), with respect to any
Person, whether recourse is to all or a portion of the assets of such Person and
whether or not
contingent:

          (1)  every obligation of such Person for money borrowed;

          (2)  every obligation of such Person evidenced by bonds, debentures,
     notes or other similar instruments, including obligations Incurred in
     connection with the acquisition of property, assets or businesses;

          (3)  every reimbursement obligation of such Person with respect to
     letters of credit, bankers' acceptances or similar facilities issued for
     the account of such Person;

          (4)  every obligation of such Person issued or assumed as the deferred
     purchase price of property or services (but excluding trade accounts
     payable or accrued liabilities arising in the ordinary course of business
     which are not overdue or which are being contested in good faith);

          (5)  every Capital Lease Obligation of such Person;

          (6)  every net obligation under Hedging Agreements or similar
     agreements of such Person; and

          (7)  every obligation of the type referred to in clauses (1) through
     (6) of another Person and all dividends of another Person the payment of
     which, in either case, such Person has guaranteed or is responsible or
     liable for, directly or indirectly, as obligor, guarantor or otherwise.
<PAGE>

                                                                              12


          Indebtedness shall:

          (1)  include the liquidation preference and any mandatory redemption
     payment obligations in respect of any Disqualified Stock of the Company and
     any Restricted Subsidiary and any Preferred Stock of a Subsidiary of the
     Company;

          (2)  never be calculated taking into account any cash and Cash
     Equivalents held by such Persons;

          (3)  not include obligations arising from agreements of the Company or
     a Restricted Subsidiary to provide for indemnification, adjustment of
     purchase price, earn-out or other similar obligations, in each case,
     Incurred or assumed in connection with the disposition of any business or
     assets of a Restricted Subsidiary.

The amount of any Indebtedness outstanding as of any date shall be:

          (1)  the accreted value thereof, in the case of any Indebtedness
     issued with original issue discount;

          (2)  the principal amount thereof, in the case of any Indebtedness
     other than Indebtedness issued with original issue discount; and

          (3)  the greater of the maximum repurchase or redemption price or
     liquidation preference thereof, in the case of any Disqualified Stock or
     Preferred Stock.

          "Indenture" means this Indenture as amended or supplemented from time
to time.

          "Ineligible Subsidiary" means:

          (1)  any Special Purpose Subsidiary;

          (2)  any Subsidiary Guarantor;

          (3)  any Subsidiary of the Company that, directly or indirectly, owns
     any Capital Stock or Indebtedness of, or owns or holds any Lien on any
     property of, the Company or any other Subsidiary of the Company that is not
     a Subsidiary of the Subsidiary to be so designated; and

          (4)  any Subsidiary of the Company that, directly or indirectly, owns
     any Capital Stock or Indebtedness of, or owns or holds any Lien on any
     property of, any other Subsidiary of the Company that is not eligible to be
     designated as an Unrestricted Subsidiary.

          "Initial Purchasers" means Chase Securities Inc., BT Alex. Brown
Incorporated and Lehman Brothers Inc.
<PAGE>

                                                                              13


          "Investment" in any Person means any direct or indirect loan, advance,
guarantee or other extension of credit or capital contribution to (by means of
transfers of cash or other property to others or payments for property or
services for the account or use of others or otherwise), or purchase or
acquisition of Capital Stock, bonds, notes, debentures or other securities or
evidence of Indebtedness issued by, any other Person.

          "Initial Security" or "Initial Securities" means any Security or
Securities issued on the date of the Indenture.

          "Issue Date" means the date on which the Securities are originally
issued.

          "Legal Holiday" means a Saturday, Sunday or other day on which banking
institutions in the State of New York are authorized or required by law to
close.

          "License" means any broadband Personal Communications Services license
issued by the FCC in connection with the operation of a System.

          "License Subsidiary" means TeleCorp PCS, L.L.C. and THC and/or any
other Wholly Owned Restricted Subsidiary of the Company designated as a License
Subsidiary under the Credit Agreement.

          "Lien" means, with respect to any property or assets, any mortgage or
deed of trust, pledge, hypothecation, assignment, security interest, lien,
charge, easement (other than any easement not materially impairing usefulness or
marketability), encumbrance, preference, priority or other security agreement
with respect to such property or assets (including, without limitation, any
conditional sale or other title retention agreement having substantially the
same economic effect as any of the foregoing).

          "liquidated damages" means any liquidated damages payable under a
Registration Agreement.

          "Lucent" means Lucent Technologies Inc., a Delaware corporation.

          "Lucent Note Purchase Agreement" means the Note Purchase Agreement
dated as of May 11, 1998, between the Company and Lucent, as amended as of the
date of this Indenture.

          "Management Stockholders" means Gerald Vento and Thomas Sullivan.

          "Marketing Affiliate" means any Person which engages in no activity
other than the registration, holding, maintenance or protection of trademarks
and the licensing thereof.

          "MTA" means a Major Trading Area, as defined in 47 C.F.R. (S)24.202.
<PAGE>

                                                                              14

          "Net Available Proceeds" from any Asset Disposition by any Person
means cash or readily marketable Cash Equivalents received (including by way of
sale or discounting of a note, installment receivable or other receivable, but
excluding any other consideration received in the form of assumption by the
acquiror of Indebtedness or other obligations relating to such properties or
assets or received in any other non-cash form) therefrom by such Person,
including any cash received by way of deferred payment or upon the monetization
or other disposition of any non-cash consideration (including notes or other
securities) received in connection with such Asset Disposition, net of

          (1)  all legal, title and recording tax expenses, commissions and
     other fees and expenses incurred and all federal, state, foreign and local
     taxes required to be accrued as a liability as a consequence of such Asset
     Disposition;

          (2)  all payments made by such Person or any of its Restricted
     Subsidiaries on any Indebtedness which is secured by such assets in
     accordance with the terms of any Lien upon or with respect to such assets
     or which must by the terms of such Lien, or in order to obtain a necessary
     consent to such Asset Disposition or by applicable law, be repaid out of
     the proceeds from such Asset Disposition;

          (3)  all payments made with respect to liabilities associated with the
     assets which are the subject of the Asset Disposition, including, without
     limitation, trade payables and other accrued liabilities;

          (4)  appropriate amounts to be provided by such Person or any
     Restricted Subsidiary thereof, as the case may be, as a reserve in
     accordance with GAAP against any liabilities associated with such assets
     and retained by such Person or any Restricted Subsidiary thereof, as the
     case may be, after such Asset Disposition, including, without limitation,
     liabilities under any indemnification obligations and severance and other
     employee termination costs associated with such Asset Disposition, until
     such time as such amounts are no longer reserved or such reserve is no
     longer necessary (at which time any remaining amounts will become Net
     Available Proceeds to be allocated in accordance with the provisions of
     clause (a)(3) of Section 4.06); and

          (5)  all distributions and other payments made to minority interest
     holders in Restricted Subsidiaries of such Person or joint ventures as a
     result of such Asset Disposition.

          "Net Investment" means the excess of:

          (1)  the aggregate amount of all Investments made in any Unrestricted
     Subsidiary or joint venture by the Company or any Restricted Subsidiary on
     or after the date of this Indenture (in the case of an Investment made
     other than in cash, the amount shall be the Fair Market Value of such
     Investment as determined in good faith by the Board of the Company or such
     Restricted Subsidiary); over

          (2)  the aggregate amount returned in cash on or with respect to such
     Investments whether through interest payments, principal payments,
     dividends or other distributions
<PAGE>

                                                                              15


     or payments; provided, however, that such payments or distributions shall
                  --------  -------
     not be (and have not been) included in clause (C) of the paragraph (a) of
     Section 4.04; provided further that, with respect to all Investments made
                   -------- -------
     in any Unrestricted Subsidiary or joint venture, the amounts referred to in
     clause (1) above with respect to such Investments shall not exceed the
     aggregate amount of all such Investments made in such Unrestricted
     Subsidiary or joint venture.

          "Offer" means any written offer sent by the Company that is the
subject of an Offer to Purchase.

          "Offer to Purchase" means an Offer sent by first class mail, postage
prepaid, to each holder of Securities at such holder's address appearing in the
register for the Securities on the date of the Offer offering to purchase up to
(a) the Accreted Value of Securities, if such Offer is on or prior to April 15,
2004, or (b) the principal amount at maturity of the Securities, if such Offer
is after April 15, 2004, specified in such Offer at the purchase price specified
in such Offer (as determined pursuant to this Indenture).  Unless otherwise
required by applicable law, the Offer shall specify an Expiration Date of the
Offer to Purchase which shall be not less than 30 days nor more than 60 days
after the date of such Offer and a Purchase Date for purchase of Securities
within five Business Days after the Expiration Date.  The Company shall notify
the Trustee at least 15 Business Days (or such shorter period as is acceptable
to the Trustee) prior to the mailing of the Offer of the Company's obligation to
make an Offer to Purchase, and the Offer shall be mailed by the Company or, at
the Company's request, by the Trustee in the name and at the expense of the
Company.  The Offer shall contain all the information required by applicable law
to be included therein.  The Offer shall contain all instructions and materials
necessary to enable holders of Securities to tender their Securities pursuant to
the Offer to Purchase.  The Offer shall also state:

          (1)  the provision of this Indenture pursuant to which the Offer to
     Purchase is being made;

          (2)  the Expiration Date and the Purchase Date;

          (3)  the Purchase Amount;

          (4)  the Purchase Price;

          (5)  that such holder may tender all or any portion of the Securities
     registered in the name of such holder and that any portion of a Security
     tendered must be tendered in an integral multiple of $1,000 of principal
     amount at maturity;

          (6)  the place or places where Securities are to be surrendered for
     tender pursuant to the Offer to Purchase;

          (7)  that interest on any Security not tendered or tendered but not
     purchased by the Company pursuant to the Offer to Purchase will continue to
     accrue;
<PAGE>

                                                                              16


          (8)  that on the Purchase Date the Purchase Price will become due and
     payable upon each Security being accepted for payment pursuant to the Offer
     to Purchase and that interest thereon shall cease to accrue on and after
     the Purchase Date;

          (9)  that each holder electing to tender all or any portion of a
     Security pursuant to the Offer to Purchase shall be required to surrender
     such Security at the place or places specified in the Offer prior to the
     close of business on the Expiration Date (such Security being, if the
     Company or the Trustee so requires, duly endorsed by, or accompanied by a
     written instrument of transfer in form satisfactory to the Company and the
     Trustee duly executed by, the holder thereof or such holder's attorney duly
     authorized in writing);

          (10) that holders will be entitled to withdraw all or any portion of
     Securities tendered if the Company (or its paying agent) receives, not
     later than the close of business on the fifth Business Day next preceding
     the Expiration Date, a telegram, telex, facsimile transmission or letter
     setting forth the name of the holder, the principal amount at maturity of
     the Security the holder tendered, the certificate number of the Security
     the holder tendered and a statement that such holder is withdrawing all or
     a portion of such holder's tender;

          (11) that (a) if Securities in an aggregate principal amount at
     maturity less than or equal to the Purchase Amount are duly tendered and
     not withdrawn pursuant to the Offer to Purchase, the Company shall purchase
     all such Securities and (b) if Securities in an aggregate principal amount
     at maturity in excess of the Purchase Amount are tendered and not withdrawn
     pursuant to the Offer to Purchase, the Company shall purchase Securities
     having an aggregate principal amount at maturity equal to the Purchase
     Amount on a pro rata basis (with such adjustments as may be deemed
                 --- ----
     appropriate so that only Securities in denominations of $1,000 of principal
     amount at maturity or integral multiples thereof shall be purchased); and

          (12) that in the case of any holder whose Security is purchased only
     in part, the Company shall execute and the Trustee shall authenticate and
     deliver to the holder of such Security without service charge, a new
     Security or Securities, of any authorized denomination as requested by such
     holder, in an aggregate principal amount at maturity equal to and in
     exchange for the unpurchased portion of the Security so tendered.

An Offer to Purchase shall be governed by and effected in accordance with the
provisions above pertaining to any Offer.

          "Officer" means the Chief Executive Officer, the Executive Vice
President, the Chief Financial Officer, the Chief Operating Officer, the
President, any Vice President, the Treasurer or any Secretary of the Company or
a Subsidiary of the Company, as the case may be.

          "Officers' Certificate" means a certificate signed by two Officers
(other than both the Treasurer and the Secretary) and delivered to the Trustee.
<PAGE>

                                                                              17


          "Opinion of Counsel" means a written opinion delivered to the Trustee
from legal counsel who is acceptable to the Trustee.  The counsel may be an
employee of or counsel to the Company or the Trustee.

          "Permitted Asset Swap" means any exchange of assets by the Company or
a Restricted Subsidiary where the Company and/or its Restricted Subsidiaries
receive consideration at least 75% of which consists of (1) cash, (2) assets
that are used or useful in a Permitted Business or (3) any combination thereof.

          "Permitted Business" means:

          (1)  the delivery or distribution of telecommunications, voice, data
     or video services;

          (2)  any business or activity reasonably related or ancillary thereto,
     including, without limitation, any business conducted by the Company or any
     Restricted Subsidiary on the date of this Indenture and the acquisition,
     holding or exploitation of any license relating to the delivery of the
     services described in clause (1) above; or

          (3)  any other business or activity in which the Company (and the
     Restricted Subsidiaries) are expressly contemplated to be engaged pursuant
     to the provisions of the certificate of incorporation and by-laws of the
     Company as in effect on the date of this Indenture.

          "Permitted Holder" means:

          (1)  each of AT&T Wireless, TWR Cellular, the Cash Equity Investors,
     the Management Stockholders, Digital PCS, Wireless 2000 and any of their
     respective Affiliates and the respective successors (by merger,
     consolidation, transfer or otherwise) to all or substantially all of the
     respective businesses and assets of any of the foregoing; and

          (2)  any "person" or "group" (as such terms are used in Sections 13(d)
     and 14(d) of the Exchange Act) controlled by one or more persons identified
     in clause (1) above.

          "Permitted Investments" means:

          (1)  Investments in Cash Equivalents;

          (2)  Investments representing Capital Stock or obligations issued to
     the Company or any Restricted Subsidiary in the course of the good faith
     settlement of claims against any other Person or by reason of a composition
     or readjustment of debt or a reorganization of any debtor of the Company or
     any Restricted Subsidiary;

          (3)  deposits including interest-bearing deposits, maintained in the
     ordinary course of business in banks;
<PAGE>

                                                                              18


          (4)  any Investment in any Person; provided, however, that, after
                                             --------  -------
     giving effect to such Investment, such Person is or becomes a Restricted
     Subsidiary or such Person is merged, consolidated or amalgamated with or
     into, or transfers or conveys substantially all of its assets to, or is
     liquidated into, the Company or a Restricted Subsidiary;

          (5)  trade receivables and prepaid expenses, in each case arising in
     the ordinary course of business; provided, however, that such receivables
                                      --------  -------
     and prepaid expenses would be recorded as assets of such Person in
     accordance with GAAP;

          (6)  endorsements for collection or deposit in the ordinary course of
     business by such Person of bank drafts and similar negotiable instruments
     of such other Person received as payment for ordinary course of business
     trade receivables;

          (7)  any interest rate agreements with an unaffiliated Person
     otherwise permitted by clause (5) or (6) of paragraph (a) of Section 4.03;

          (8)  Investments received as consideration for an Asset Disposition in
     compliance with the provisions of this Indenture described under Section
     4.06;

          (9)  loans or advances to employees of the Company or any Restricted
     Subsidiary in the ordinary course of business in an aggregate amount not to
     exceed $5,000,000 in the aggregate at any one time outstanding;

          (10) any Investment acquired by the Company or any of its Restricted
     Subsidiaries as a result of a foreclosure by the Company or any of its
     Restricted Subsidiaries or in connection with the settlement of any
     outstanding Indebtedness or trade payable;

          (11) loans and advances to officers, directors and employees for
     business-related travel expense, moving expense and other similar expenses,
     each incurred in the ordinary course of business; and

          (12) other Investments (with each such Investment being valued as of
     the date made and without giving effect to subsequent changes in value) in
     an aggregate amount not to exceed $7,500,000 at any one time outstanding.

          "Person" means any individual, corporation, limited or general
partnership, joint venture, association, joint stock company, trust,
unincorporated organization or government or any agency or political subdivision
thereof.

          "Plan of Liquidation" means, with respect to any Person, a plan
(including by operation of law) that provides for, contemplates, or the
effectuation of which is preceded or accompanied by (whether or not
substantially contemporaneously):

          (1)  the sale, lease, conveyance or other disposition of all or
     substantially all of the assets of such Person; and
<PAGE>

                                                                              19

          (2)  the distribution of all or substantially all of the proceeds of
     such sale, lease, conveyance or other disposition and all or substantially
     all of the remaining assets of such Person to holders of Capital Stock of
     such Person.

          "Preferred Stock," as applied to the Capital Stock of any Person,
means Capital Stock of such Person of any class or classes (however designated)
that ranks prior, as to the payment of dividends or as to the distribution of
assets upon any voluntary or involuntary liquidation, dissolution or winding up
of such Person, to shares of Capital Stock of any other class of such Person.

          "principal" of a Security means the principal of the Security plus the
premium, if any, payable on the Security which is due or overdue or is to become
due at the relevant time.

          "Private Exchange Securities" means, collectively, debt securities of
the Company that are identical in all material respects to the Exchange
Securities, except for transfer restrictions relating to such Private Exchange
Securities, issued by the Company (under the same indenture as the Exchange
Securities) simultaneously with the delivery of the Exchange Securities in the
Exchange Offer to any Securityholder that holds any Securities acquired by it
that have, or that are reasonably likely to be determined to have, the status of
an unsold allotment in an initial distribution, or to any Securityholder that is
not entitled to participate in the Exchange Offer, upon the request of any such
holder, in exchange for a like aggregate principal amount at maturity of
Securities held by such holder.

          "Public Sale" means any underwritten public offering, made on a
primary basis pursuant to a registration statement filed with, and declared
effective by, the Commission in accordance with the Securities Act.

          "Puerto Rico Acquisition" means the merger of Puerto Rico Acquisition
Corp. into the Company and the purchase by the Company from AT&T Wireless of 20
MHz of A-Block Licenses covering the San Juan MTA together with related assets.

          "Purchase Amount" means the aggregate principal amount at maturity of
the outstanding Securities offered to be purchased by the Company pursuant to
any Offer to Purchase (including, if less than 100%, the manner by which such
amount has been determined pursuant to a specified provision of this Indenture
requiring such Offer to Purchase).

          "Purchase Date" means the settlement date with respect to any Offer to
Purchase.

          "Purchase Amount" means, with respect to any Offer to Purchase, the
purchase price to be paid by the Company for each $1,000 aggregate principal
amount at maturity of Securities accepted for payment (as specified pursuant to
this Indenture).

          "Qualified License" means, as of the date of determination, any
License covering or adjacent to any geographical area in respect of which the
Company or any Restricted Subsidiary owns, as of the Business Day immediately
prior to such date of determination, at least one other License covering a
substantial portion of such area.
<PAGE>

                                                                              20

          "Qualified Stock" means any Capital Stock of the Company other than
Disqualified Stock.

          "Real Property Subsidiary" means TeleCorp Realty L.L.C., Puerto Rico
Acquisition Corp. and/or any other Wholly Owned Subsidiary of the Company
designated by the Company as a Real Property Subsidiary under the Credit
Agreement.

          "Refinance" means refinance, renew, extend, replace or refund; and
"Refinancing" and "Refinanced" have correlative meanings.

          "Refinancing Indebtedness" means Indebtedness that is Incurred to
refund, refinance, replace, renew, repay or extend (including pursuant to any
defeasance or discharge mechanism) any Indebtedness of the Company or any
Restricted Subsidiary existing on the date of this Indenture or Incurred in
compliance with this Indenture (including Indebtedness of the Company that
Refinances Refinancing Indebtedness); provided, however, that:
                                      --------  -------

          (1) the Refinancing Indebtedness has a Stated Maturity no earlier than
     the Stated Maturity of the Indebtedness being Refinanced;

          (2) the Refinancing Indebtedness has an Average Life at the time such
     Refinancing Indebtedness is Incurred that is equal to or greater than the
     Average Life of the Indebtedness being refinanced;

          (3) such Refinancing Indebtedness is Incurred in an aggregate
     principal amount (or if issued with original issue discount, an aggregate
     issue price) that is equal to or less than the aggregate principal amount
     (or if issued with original issue discount, the aggregate accreted value)
     then outstanding of the Indebtedness being Refinanced plus the amount of
     any premium required to be paid in connection with such Refinancing
     pursuant to the terms of the Indebtedness being Refinanced or the amount of
     any premium reasonably determined by the issuer of such Indebtedness as
     necessary to accomplish such Refinancing by means of a tender offer,
     exchange offer or privately negotiated repurchase, plus the expenses of
     such issuer reasonably incurred in connection therewith; and

          (4) if the Indebtedness being Refinanced is pari passu with the
                                                      ---- -----
     Securities, such Refinancing Indebtedness is made pari passu with, or
                                                       ---- -----
     subordinate in right of payment to, the Securities, and, if the
     Indebtedness being Refinanced is subordinate in right of payment to the
     Securities, such Refinancing Indebtedness is subordinate in right of
     payment to the Securities on terms no less favorable to the holders of
     Securities than those contained in the Indebtedness being Refinanced;

provided further, however, that Refinancing Indebtedness shall not include
- -------- -------  -------

          (A) Indebtedness of a Restricted Subsidiary that Refinances
     Indebtedness of the Company; or
<PAGE>

                                                                              21

          (B) Indebtedness of the Company or a Restricted Subsidiary that
     Refinances Indebtedness of an Unrestricted Subsidiary.

          "Representative" means the trustee, agent or representative (if any)
for an issue of Senior Indebtedness.

          "Restricted Subsidiary" means any Subsidiary of the Company other than
an Unrestricted Subsidiary.

          "Sale/Leaseback Transaction" means an arrangement relating to property
owned on the date of this Indenture or thereafter acquired by the Company or a
Restricted Subsidiary whereby the Company or a Restricted Subsidiary transfers
such property to a Person and the Company or such Restricted Subsidiary leases
it from such Person, other than leases between the Company and a Wholly Owned
Subsidiary or between Wholly Owned Subsidiaries.

          "Secured Indebtedness" means any Indebtedness of the Company secured
by a Lien.  "Secured Indebtedness" of the Subsidiary Guarantor has a correlative
meaning.

          "Securities Act" means the Securities Act of 1933, as amended.

          "Securities Purchase Agreement" means the Securities Purchase
Agreement dated January 23, 1998, among AT&T Wireless, TWR Cellular, the
stockholders of THC, the Cash Equity Investors, the Management Stockholders and
the Company, as such agreement may be amended from time to time in accordance
with the provisions of such agreement, so long as the terms of any such
amendment are no less favorable to the Securityholders than the terms of the
Securities Purchase Agreement in effect on the date of this Indenture.

          "Security" or "Securities" means any Security or Securities issued
under this Indenture, including any Initial Security or Initial Securities or
any Exchange Security or Exchange Securities or any Private Exchange Security or
Private Exchange Securities issued in exchange therefor in connection with an
Exchange Offer undertaken pursuant to the Exchange and Registration Rights
Agreement.

          "Securityholder" or "Holder" means the Person in whose name a Security
is registered on the registrar's books.

          "Senior Indebtedness" of the Company means the principal of, premium
(if any) and accrued and unpaid interest (including interest accruing on or
after the filing of any petition in bankruptcy or for reorganization of the
Company, regardless of whether or not a claim for post-filing interest is
allowed in such proceedings) on, and fees and other amounts owing in respect of
Bank Indebtedness and all other Indebtedness of the Company, including FCC Debt,
whether outstanding on the date of this Indenture or thereafter Incurred, unless
in the instrument creating or evidencing the same or pursuant to which the same
is outstanding it is provided that such obligations are not superior in right of
payment to the Securities; provided, however, that Senior Indebtedness shall not
                           --------  -------
include:

          (1) any obligation of the Company to any Subsidiary of the Company;
<PAGE>

                                                                              22

          (2) any liability for federal, state, local or other taxes owed or
     owing by the Company;

          (3) any accounts payable or other liability to trade creditors arising
     in the ordinary course of business (including guarantees thereof or
     instruments evidencing such liabilities);

          (4) any Indebtedness or obligation of the Company, and any accrued and
     unpaid interest in respect thereof, that by its terms is subordinate or
     junior in any respect to any other Indebtedness or obligation of the
     Company, including any Senior Subordinated Indebtedness of the Company and
     any Subordinated Indebtedness of the Company;

          (5) any obligations with respect to any Capital Stock; or

          (6) any Indebtedness Incurred in violation of this Indenture.

"Senior Indebtedness" of any Subsidiary Guarantor has a correlative meaning.

          "Senior Subordinated Indebtedness" of the Company means the Securities
and any other Indebtedness of the Company that specifically provides that such
Indebtedness is to rank pari passu with the Securities in right of payment and
                        ---- -----
is not subordinated by its terms in right of payment to any Indebtedness or
other obligation of the Company which is not Senior Indebtedness.  "Senior
Subordinated Indebtedness" of a Subsidiary Guarantor has a correlative meaning.

          "Series A Notes" means the Series A Notes of the Company purchased by
Lucent pursuant to the Lucent Note Purchase Agreement.

          "Significant Subsidiary" means any Restricted Subsidiary that would be
a "Significant Subsidiary" of the Company within the meaning of Rule 1-02 under
Regulation S-X promulgated by the Commission.

          "Special Purpose Subsidiary" means any Equipment Subsidiary, License
Subsidiary or Real Property Subsidiary.

          "Stated Maturity" means, with respect to any security, the date
specified in such security as the fixed date on which the final payment of
principal of such security is due and payable, including pursuant to any
mandatory redemption provision (but excluding any provision providing for the
repurchase of such security at the option of the holder thereof upon the
happening of any contingency beyond the control of the issuer unless such
contingency has occurred).

          "Stockholders' Agreement" means the Stockholders' Agreement dated as
of July 17, 1998, among AT&T Wireless, TWR Cellular, the Cash Equity Investors,
the Management Stockholders and the Company, as such agreement may be amended
from time to time in accordance with the provisions of such agreement, so long
as the terms of any such
<PAGE>

                                                                              23

amendment are no less favorable to the Securityholders than the terms of the
Stockholders' Agreement in effect on the date of this Indenture.

          "Strategic Equity Investor" means any of the Cash Equity Investors,
any Affiliate thereof, any other Person engaged in a Permitted Business whose
Total Equity Market Capitalization exceeds $500,000,000 or any other Person who
has at least $100,000,000 total funds under management and who has issued an
irrevocable, unconditional commitment to purchase Qualified Stock of the Company
for an aggregate purchase price that does not exceed 20% of the value of the
funds under management by such Person.

          "Subordinated Indebtedness" means any Indebtedness of the Company or
any Subsidiary Guarantor (whether outstanding on the date of this Indenture or
thereafter Incurred) which is by its terms expressly subordinate or junior in
right of payment to the Securities or the Subsidiary Guarantee of such
Subsidiary Guarantor, as the case may be.

          "Subsidiary" of any Person means:

          (1) a corporation more than 50% of the outstanding Voting Stock of
     which is owned, directly or indirectly, by such Person or by one or more
     other Subsidiaries of such Person or by such Person and one or more other
     Subsidiaries thereof; or

          (2) any other Person (other than a corporation) in which such Person,
     or one or more other Subsidiaries of such Person or such Person and one or
     more other Subsidiaries thereof, directly or indirectly, has at least a
     majority ownership and voting power relating to the policies, management
     and affairs thereof.

          "Subsidiary Guarantee" means each guarantee of the obligations with
respect to the Securities issued by a Subsidiary of the Company pursuant to the
terms of this Indenture, each such Subsidiary Guarantee having subordination
provisions equivalent to those contained in this Indenture with respect to the
Securities and being substantially in the form prescribed in this Indenture.

          "Subsidiary Guarantor" means any Subsidiary of the Company that has
issued a Subsidiary Guarantee.

          "System" means, as to any Person, assets constituting a radio
communications system authorized under the rules for wireless communications
services (including any license and the network, marketing, distribution, sales,
customer interface and operations and functions relating thereof) owned and
operated by such Person.

          "THC" means TeleCorp Holding Corp., Inc., a Delaware corporation and a
Wholly Owned Subsidiary.

          "TIA" means the Trust Indenture Act of 1939 (15 U.S.C. (S)(S) 77aaa-
                                                          ------
77bbbb) as in effect on the date of this Indenture.
<PAGE>

                                                                              24

          "Total Consolidated Indebtedness" means, at any date of determination,
an amount equal to:

          (1) the accreted value of all Indebtedness, in the case of any
     Indebtedness issued with original issue discount; plus

          (2) the principal amount of all Indebtedness, in the case of any other
     Indebtedness,

of the Company and its Restricted Subsidiaries outstanding as of the date of
determination; provided, however, that no amount owing by the Company or any of
               --------  -------
its Restricted Subsidiaries in respect of any Series A Notes outstanding as of
the date of determination shall be included in the determination of Total
Consolidated Indebtedness.

          "Total Equity Market Capitalization" of any Person means, as of any
day of determination, the sum of (a) the product of (1) the aggregate number of
outstanding primary shares of common stock of such Person on such day (which
shall not include any options or warrants on, or securities convertible or
exchangeable into, shares of common stock of such Person) multiplied by (2) the
average closing price of such common stock listed on a national securities
exchange or the Nasdaq National Market System over the 20 consecutive Business
Days immediately preceding such day plus (b) the liquidation value of any
outstanding shares of preferred stock of such Person on such day.

          "Total Invested Capital" means, as of any date of determination, the
sum of, without duplication:

          (1) the total amount of equity contributed to the Company as of the
     date of this Indenture (as set forth on the December 31, 1998 consolidated
     balance sheet of the Company); plus

          (2) irrevocable, unconditional commitments from any Strategic Equity
     Investor to purchase Capital Stock of the Company (other than Disqualified
     Stock) within 36 months of the date of issuance of such commitment, but in
     any event not later than the Stated Maturity of the Securities; provided,
                                                                     --------
     however, that such commitments shall exclude commitments related to any
     -------
     Investment in any Person incorporated, formed or created for the purpose of
     acquiring one or more Qualified Licenses unless such Person shall become a
     Restricted Subsidiary; plus

          (3) the aggregate net cash proceeds received by the Company from
     capital contributions or the issuance or sale of Capital Stock of the
     Company (other than Disqualified Stock, but including Qualified Stock
     issued upon the conversion of convertible Indebtedness or upon the exercise
     of options, warrants or rights to purchase Qualified Stock) subsequent to
     the date of this Indenture, other than issuances or sales of Capital Stock
     to a Restricted Subsidiary and other than capital contributions from, or
     issuances or sales of Capital Stock to, any Strategic Equity Investor in
     connection with (a) any Investment in any Person incorporated, formed or
     created for the purpose of acquiring one or more Qualified Licenses and (b)
     any Investment in any Person engaged
<PAGE>

                                                                              25

     in a Permitted Business, unless, in either case, such Person shall become a
     Restricted Subsidiary; provided, however, such aggregate net cash proceeds
                            --------  -------
     shall exclude any amounts included as commitments to purchase Capital Stock
     in the preceding clause (2); plus

          (4) the Fair Market Value of assets that are used or useful in a
     Permitted Business or of the Capital Stock of a Person engaged in a
     Permitted Business received by the Company as a capital contribution or in
     exchange for Capital Stock of the Company (other than Disqualified Stock)
     subsequent to the date of this Indenture, other than (x) capital
     contributions from a Restricted Subsidiary or issuance or sales of Capital
     Stock of the Company to a Restricted Subsidiary or (y) the proceeds from
     the sale of Qualified Stock to an employee stock ownership plan or other
     trust established by the Company or any of its subsidiaries; plus

          (5) the aggregate net cash proceeds received by the Company or any
     Restricted Subsidiary from the sale, disposition or repayment of any
     Investment made after the date of this Indenture and constituting a
     Restricted Payment in an amount equal to the lesser of (a) the return of
     capital with respect to such Investment and (b) the initial amount of such
     Investment, in either case, less the cost of the disposition of such
     Investment; plus

          (6) an amount equal to the consolidated Net Investment of the Company
     and/or any of its Restricted Subsidiaries in any Subsidiary that has been
     designated as an Unrestricted Subsidiary after the date of this Indenture
     upon its redesignation as a Restricted Subsidiary in accordance with
     Section 4.13; plus

          (7) cash proceeds from the sale to Lucent of the Series A Notes (less
     payments made by the Company or any of its Subsidiaries with respect to
     Series A Notes (other than payments of additional Series A Notes)); plus

          (8) Total Consolidated Indebtedness; minus

          (9) the aggregate amount of all Restricted Payments (including any
     Designation Amount, but other than a Restricted Payment of the type
     referred to in clause (3)(b) of paragraph (c) of Section 4.04) declared or
     made on or after the date of this Indenture.

          "Trustee" means the party named as such in this Indenture until a
successor replaces it and, thereafter, means the successor.

          "Trust Officer" means any officer within the Corporate Trust Office
including any Vice President, Managing Director, Assistant Vice President,
Secretary, Assistant Secretary, Treasurer or Assistant Treasurer or any other
officer of the Trustee customarily performing functions similar to those
performed by any of the above designated officers and also, with respect to a
particular matter, any other officer to whom such matter is referred because of
such officer's knowledge and familiarity with the particular subject.

          "TWR Cellular" means TWR Cellular, Inc., a Delaware corporation, and
an Affiliate of AT&T Wireless.
<PAGE>

                                                                              26

          "Uniform Commercial Code" means the New York Uniform Commercial Code
as in effect from time to time.

          "Unrestricted Subsidiary" means (1) any Subsidiary of the Company
(other than an Ineligible Subsidiary) designated after the date of this
Indenture as such pursuant to, and in compliance with, Section 4.13 and (2) any
Marketing Affiliate.  Any such designation of any Subsidiary of the Company may
be revoked by a resolution of the board of directors of the Company delivered to
the Trustee certifying compliance with Section 4.13, subject to the provisions
of Section 4.13.

          "U.S. Government Obligations" means direct obligations (or
certificates representing an ownership interest in such obligations) of the
United States of America (including any agency or instrumentality thereof) for
the payment of which the full faith and credit of the United States of America
is pledged and which are not callable or redeemable at the issuer's option.

          "Vendor Credit Arrangement" means any Indebtedness (including, without
limitation, Indebtedness under any credit facility entered into with any vendor
or supplier or any financial institution acting on behalf of such vendor or
supplier); provided that the net proceeds of such Indebtedness are utilized
           --------
solely for the purpose of financing the cost (including, without limitation, the
cost of design, development, site acquisition, construction, integration,
handset manufacture or acquisition or microwave relocation) of assets used or
usable in a Permitted Business (including, without limitation, through the
acquisition of Capital Stock of an entity engaged in a Permitted Business).

          "Voting Stock" of any Person means the Capital Stock of such Person
which ordinarily has voting power for the election of directors (or Persons
performing similar functions) of such Person, whether at all times or only so
long as no senior class of securities has such voting power by reason of any
contingency.

          "Wholly Owned Subsidiary" means a Restricted Subsidiary, all of the
outstanding Capital Stock or other ownership interests of which (other than
directors' qualifying shares) shall at the time be owned by the Company and/or
by one or more Wholly Owned Subsidiaries.

          "Wireless 2000" means Wireless 2000, Inc.

          "Wireless 2000 Acquisition" means the purchase by the Company from
Wireless 2000 of 15 MHz of C-Block Licenses for the Monroe, Alexandria and Lake
Charles Louisiana BTAs.
<PAGE>

                                                                              27

          SECTION 1.02.  Other Definitions.
                         ------------------

<TABLE>
<CAPTION>
                                                                   Defined in
                             Term                                   Section
                             ----                              -----------------
<S>                                                            <C>
"Blockage Notice".............................................            10.03
"Change of Control Offer".....................................           4.04(b)
"covenant defeasance option"..................................           8.01(b)
"cross acceleration provision"................................             6.01
"Designation Amount"..........................................             4.13
"Event of Default"............................................             6.01
"Guaranteed Obligations"......................................            11.01
"judgment default provision"..................................             6.01
"legal defeasance option".....................................           8.01(b)
"Notice of Default"...........................................             6.01
"pay its guarantee"...........................................            12.03
"pay the Securities"..........................................            10.03
"Paying Agent"................................................             2.03
"Payment Blockage Period".....................................            10.03
"protected purchaser".........................................             2.07
"Registrar"...................................................             2.03
"Revocation"..................................................             4.13
"Surviving Entity"............................................           5.01(a)
</TABLE>

          SECTION 1.03.  Incorporation by Reference of Trust Indenture Act.
                         --------------------------------------------------
This Indenture is subject to the mandatory provisions of the TIA, which are
incorporated by reference in and made a part of this Indenture.  The following
TIA terms have the following meanings:

          "indenture securities" means the Securities and the Subsidiary
Guarantees.

          "indenture security holder" means a Holder or Securityholder.

          "indenture to be qualified" means this Indenture.

          "indenture trustee" or "institutional trustee" means the Trustee.

          "obligor" on the indenture securities means the Company, the
Subsidiary Guarantors and any other obligor on the indenture securities.

          All other TIA terms used in this Indenture that are defined by the
TIA, defined by TIA reference to another statute or defined by SEC rule have the
meanings assigned to them by such definitions.
<PAGE>

                                                                              28

          SECTION 1.04.  Rules of Construction.  Unless the context otherwise
                         ----------------------
requires:

          (1) a term has the meaning assigned to it;

          (2) an accounting term not otherwise defined has the meaning assigned
     to it in accordance with GAAP;

          (3) "or" is not exclusive;

          (4) "including" means including without limitation;

          (5) words in the singular include the plural and words in the plural
     include the singular;

          (6) unsecured Indebtedness shall not be deemed to be subordinate or
     junior to Secured Indebtedness merely by virtue of its nature as unsecured
     Indebtedness;

          (7) the principal amount of any noninterest bearing or other discount
     security at any date shall be the principal amount thereof that would be
     shown on a balance sheet of the issuer dated such date prepared in
     accordance with GAAP;

          (8) the principal amount of any Preferred Stock shall be (i) the
     maximum liquidation value of such Preferred Stock or (ii) the maximum
     mandatory redemption or mandatory repurchase price with respect to such
     Preferred Stock, whichever is greater.


                                   ARTICLE 2

                                The Securities
                                --------------

          SECTION 2.01.  Form and Dating.  Provisions relating to the Initial
                         ----------------
Securities, the Private Exchange Securities and the Exchange Securities are set
forth in the Appendix, which is hereby incorporated in and expressly made a part
of this Indenture.  The (i) Initial Securities and the Trustee's certificate of
authentication and (ii) Private Exchange Securities and the Trustee's
certificate of authentication shall each be substantially in the form of Exhibit
A hereto, which is hereby incorporated in and expressly made a part of this
Indenture.  The Exchange Securities and the Trustee's certificate of
authentication shall each be substantially in the form of Exhibit B hereto,
which is hereby incorporated in and expressly made a part of this Indenture.
The Securities may have notations, legends or endorsements required by law,
stock exchange rule, agreements to which the Company or any Subsidiary Guarantor
is subject, if any, or usage (provided that any such notation, legend or
endorsement is in a form acceptable to the Company). Each Security shall be
dated the date of its authentication.  The Securities shall be issuable only in
registered form without interest coupons and only in denominations of $1,000 of
principal amount at maturity and integral multiples thereof.

          SECTION 2.02.  Execution and Authentication.  One or more Officers
                         -----------------------------
shall sign the Securities for the Company by manual or facsimile signature.
<PAGE>

                                                                              29

          If an Officer whose signature is on a Security no longer holds that
office at the time the Trustee authenticates the Security, the Security shall be
valid nevertheless.

          A Security shall not be valid until an authorized signatory of the
Trustee manually signs the certificate of authentication on the Security.  The
signature shall be conclusive evidence that the Security has been authenticated
under this Indenture.

          The Trustee shall authenticate and make available for delivery
Securities for original issue in an aggregate principal amount at maturity of
$575,000,000 and otherwise as set forth in the Appendix.

          The Trustee may appoint an authenticating agent reasonably acceptable
to the Company to authenticate the Securities.  Any such appointment shall be
evidenced by an instrument signed by a Trust Officer, a copy of which shall be
furnished to the Company.  Unless limited by the terms of such appointment, an
authenticating agent may authenticate Securities whenever the Trustee may do so.
Each reference in this Indenture to authentication by the Trustee includes
authentication by such agent.  An authenticating agent has the same rights as
any Registrar, Paying Agent or agent for service of notices and demands.

          SECTION 2.03.  Registrar and Paying Agent.  The Company shall maintain
                         ---------------------------
an office or agency where Securities may be presented for registration of
transfer or for exchange (the "Registrar") and an office or agency where
Securities may be presented for payment (the "Paying Agent").  The Registrar
shall keep a register of the Securities and of their transfer and exchange. The
Company may have one or more co-registrars and one or more additional paying
agents.  The term "Paying Agent" includes any additional paying agent, and the
term "Registrar" includes any co-registrars.  The Company initially appoints the
Trustee as (i) Registrar and Paying Agent in connection with the Securities and
(ii) the Securities Custodian (as defined in the Appendix) with respect to the
Global Securities (as defined in the Appendix).

          The Company shall enter into an appropriate agency agreement with any
Registrar or Paying Agent not a party to this Indenture, which shall incorporate
the terms of the TIA.  Any such agreement shall implement the provisions of this
Indenture that relate to such agent.  The Company shall notify the Trustee of
the name and address of any such agent.  If the Company fails to maintain a
Registrar or Paying Agent, the Trustee shall act as such and shall be entitled
to appropriate compensation therefor pursuant to Section 7.07.  The Company or
any of its domestically organized Wholly Owned Subsidiaries may act as Registrar
or Paying Agent.

          The Company may remove any Registrar or Paying Agent upon written
notice to such Registrar or Paying Agent and to the Trustee; provided, however,
                                                             --------  -------
that no such removal shall become effective until (1) acceptance of an
appointment by a successor as evidenced by an appropriate agreement entered into
by the Company and such successor Registrar or Paying Agent, as the case may be,
and delivered to the Trustee or (2) notification to the Trustee that the Company
or the Trustee shall serve as Registrar or Paying Agent until the appointment of
a successor in accordance with clause (1) above.  The Registrar or Paying Agent
may resign at any time upon written notice; provided, however, that the Trustee
                                            --------  -------
may resign as Registrar or Paying Agent only if the Trustee also resigns as
Trustee in accordance with Section 7.08.
<PAGE>

                                                                              30

          SECTION 2.04.  Paying Agent To Hold Money in Trust. Prior to each due
                         -----------------------------------
date of the principal and interest on any Security, the Company shall deposit
with the Paying Agent (or if the Company or a Subsidiary is acting as Paying
Agent, segregate and hold in trust for the benefit of the Persons entitled
thereto) a sum sufficient to pay such principal and interest then so becoming
due. The Company shall require each Paying Agent (other than the Company or the
Trustee) to agree in writing that the Paying Agent shall hold in trust for the
benefit of Securityholders or the Trustee all money held by the Paying Agent for
the payment of principal of or interest on the Securities and shall notify the
Trustee of any default by the Company in making any such payment. If the Company
or a Subsidiary of the Company acts as Paying Agent, it shall segregate the
money held by it as Paying Agent and hold it as a separate trust fund. The
Company at any time may require a Paying Agent to pay all money held by it to
the Trustee and to account for any funds disbursed by the Paying Agent. Upon
complying with this Section, the Paying Agent shall have no further liability
for the money delivered to the Trustee.

          SECTION 2.05.  Securityholder Lists. The Trustee shall preserve in as
                         --------------------
current a form as is reasonably practicable the most recent list available to it
of the names and addresses of Securityholders. If the Trustee is not the
Registrar, the Company shall furnish, or cause the Registrar to furnish, to the
Trustee, in writing at least five Business Days before each interest payment
date and at such other times as the Trustee may request in writing, a list in
such form and as of such date as the Trustee may reasonably require of the names
and addresses of Securityholders.

          SECTION 2.06.  Transfer and Exchange. The Securities shall be issued
                         ---------------------
in registered form and shall be transferable only upon the surrender of a
Security for registration of transfer and in compliance with the Appendix. When
a Security is presented to the Registrar with a request to register a transfer,
the Registrar shall register the transfer as requested if the requirements of
Section 8-401(a)(l) of the Uniform Commercial Code are met. When Securities are
presented to the Registrar with a request to exchange them for an equal
principal amount at maturity of Securities of other denominations, the Registrar
shall make the exchange as requested if the same requirements are met. To permit
registration of transfers and exchanges, the Company shall execute and the
Trustee shall authenticate Securities (in the form of Exhibit A or Exhibit B, as
appropriate) at the Registrar's request. The Company may require payment of a
sum sufficient to pay all taxes, assessments or other governmental charges in
connection with any transfer or exchange pursuant to this Section 2.06. The
Company shall not be required to make and the Registrar need not register
transfers or exchanges of Securities selected for redemption (except, in the
case of Securities to be redeemed in part, the portion thereof not to be
redeemed) or any Securities for a period of 15 days before a selection of
Securities to be redeemed.

          Prior to the due presentation for registration of transfer of any
Security, the Company, any Subsidiary Guarantor, the Trustee, the Paying Agent
and the Registrar may deem and treat the Person in whose name a Security is
registered as the absolute owner of such Security for the purpose of receiving
payment of principal of and interest, if any, on such Security and for all other
purposes whatsoever, whether or not such Security is overdue, and none of the
Company, any Subsidiary Guarantor, the Trustee, the Paying Agent, or the
Registrar shall be affected by notice to the contrary.
<PAGE>

                                                                              31

          Any Holder of a Global Security shall, by acceptance of such Global
Security, agree that transfers of beneficial interest in such Global Security
may be effected only through a book-entry system maintained by (i) the Holder of
such Global Security (or its agent) or (ii) any Holder of a beneficial interest
in such Global Security, and that ownership of a beneficial interest in such
Global Security shall be required to be reflected in a book entry.

          All Securities issued upon any transfer or exchange pursuant to the
terms of this Indenture will evidence the same debt and will be entitled to the
same benefits under this Indenture as the Securities surrendered upon such
transfer or exchange.

          SECTION 2.07.  Replacement Securities. If a mutilated Security is
                         ----------------------
surrendered to the Registrar or if the Holder of a Security claims that the
Security has been lost, destroyed or wrongfully taken, the Company shall issue
and the Trustee shall authenticate a replacement Security if the requirements of
Section 8-405 of the Uniform Commercial Code are met, such that the Holder (i)
satisfies the Company and the Trustee within a reasonable time after such Holder
has notice of such loss, destruction or wrongful taking and the Registrar does
not register a transfer prior to receiving such notification, (ii) makes such
request to the Company or the Trustee prior to the Security being acquired by a
protected purchaser as defined in Section 8-303 of the Uniform Commercial Code
(a "protected purchaser") and (iii) satisfies any other reasonable requirements
of the Trustee. If required by the Company or the Trustee, such Holder shall
furnish an indemnity bond sufficient in the judgment of the Company and the
Trustee to protect the Company, the Trustee, the Paying Agent and the Registrar
from any loss that any of them may suffer if a Security is replaced. The Company
and the Trustee may charge the Holder for their expenses in replacing a
Security. In the event any such mutilated, lost, destroyed or wrongfully taken
Security has become or is about to become due and payable, the Company in its
discretion may pay such Security instead of issuing a new Security in
replacement thereof.

          Every replacement Security is an additional obligation of the Company.

          The provisions of this Section 2.07 are exclusive and shall preclude
(to the extent lawful) all other rights and remedies with respect to the
replacement or payment of mutilated, lost, destroyed or wrongfully taken
Securities.

          SECTION 2.08.  Outstanding Securities. Securities outstanding at any
                         ----------------------
time are all Securities authenticated by the Trustee except for those canceled
by it, those delivered to it for cancelation and those described in this Section
2.08 as not outstanding. Subject to Section 13.06, a Security does not cease to
be outstanding because the Company or an Affiliate of the Company holds the
Security.

          If a Security is replaced pursuant to Section 2.07, it ceases to be
outstanding unless the Trustee and the Company receive proof satisfactory to
them that the replaced Security is held by a protected purchaser.

          If the Paying Agent segregates and holds in trust, in accordance with
this Indenture, on a redemption date or maturity date money sufficient to pay
all principal and interest and liquidated damages payable on that date with
respect to the Securities (or portions
<PAGE>

                                                                              32

thereof) to be redeemed or maturing, as the case may be, and the Paying Agent is
not prohibited from paying such money to the Securityholders on that date
pursuant to the terms of this Indenture, then on and after that date such
Securities (or portions thereof) cease to be outstanding and interest on them
ceases to accrue.

          SECTION 2.09.  Temporary Securities. In the event that Definitive
                         --------------------
Securities (as defined in the Appendix) are to be issued under the terms of this
Indenture, until such Definitive Securities are ready for delivery, the Company
may prepare and the Trustee shall authenticate temporary Securities. Temporary
Securities shall be substantially in the form of Definitive Securities but may
have variations that the Company considers appropriate for temporary Securities.
Without unreasonable delay, the Company shall prepare and the Trustee shall
authenticate Definitive Securities and deliver them in exchange for temporary
Securities upon surrender of such temporary Securities at the office or agency
of the Company, without charge to the Holder.

          SECTION 2.10.  Cancelation. The Company at any time may deliver
                         -----------
Securities to the Trustee for cancelation. The Registrar and the Paying Agent
shall forward to the Trustee any Securities surrendered to them for registration
of transfer, exchange or payment. The Trustee and no one else shall cancel all
Securities surrendered for registration of transfer, exchange, payment or
cancelation and deliver canceled Securities to the Company pursuant to written
direction by an Officer. The Company may not issue new Securities to replace
Securities it has redeemed, paid or delivered to the Trustee for cancelation.
The Trustee shall not authenticate Securities in place of canceled Securities
other than pursuant to the terms of this Indenture.

          SECTION 2.11.  Defaulted Interest. If the Company defaults in a
                         ------------------
payment of interest on the Securities, the Company shall pay the defaulted
interest (plus interest on such defaulted interest to the extent lawful) in any
lawful manner. The Company may pay the defaulted interest to the Persons who are
Securityholders on a subsequent special record date. The Company shall fix or
cause to be fixed any such special record date and payment date to the
reasonable satisfaction of the Trustee and shall promptly mail or cause to be
mailed to each Securityholder a notice that states the special record date, the
payment date and the amount of defaulted interest to be paid.

          SECTION 2.12.  CUSIP Numbers. The Company in issuing the Securities
                         -------------
may use CUSIP numbers (if then generally in use) and, if so, the Trustee shall
use CUSIP numbers in notices of redemption solely as a convenience to Holders;
provided, however, that any such notice may state that (i) none of the Company,
- --------  -------
any Subsidiary Guarantor, the Trustee or the Paying Agent shall be responsible
for selection or use of such CUSIP numbers, (ii) no representation is made as to
the correctness of such CUSIP numbers either as printed on the Securities or as
contained in any notice of a redemption and (iii) reliance may be placed only on
the other identification numbers printed on the Securities, and any such
redemption shall not be affected by any defect in or omission of such numbers.
<PAGE>

                                                                              33

                                   ARTICLE 3

                                  Redemption
                                  ----------

          SECTION 3.01.  Notices to Trustee. If the Company elects to redeem
                         ------------------
Securities pursuant to paragraph 5 of the Securities, it shall notify the
Trustee in writing of the redemption date and the principal amount at maturity
of Securities to be redeemed.

          The Company shall give each notice to the Trustee provided for in this
Section 3.01 at least 60 days before the redemption date unless the Trustee
consents to a shorter period. Such notice shall be accompanied by an Officers'
Certificate (which Officers' Certificate shall comply with the requirements of
Section 13.04(1) and 13.05) and an Opinion of Counsel (which Opinion of Counsel
shall comply with the requirements of Section 13.04(2) and 13.05) from the
Company to the effect that such redemption will comply with the conditions
herein. If fewer than all the Securities are to be redeemed, the record date
relating to such redemption shall be selected by the Company and given to the
Trustee, which record date shall be not fewer than 15 days after the date of
notice to the Trustee. Any such notice may be canceled at any time prior to
notice of such redemption being mailed to any Holder and shall thereby be void
and of no effect.

          SECTION 3.02.  Selection of Securities To Be Redeemed. If fewer than
                         --------------------------------------
all the Securities are to be redeemed, the Trustee shall select the Securities
to be redeemed pro rata or by lot or by a method that complies with applicable
               --- ----
legal and securities exchange requirements, if any, and that the Trustee in its
sole discretion shall deem to be fair and appropriate and in accordance with
methods generally used at the time of selection by fiduciaries in similar
circumstances. The Trustee shall make the selection from outstanding Securities
not previously called for redemption. The Trustee may select for redemption
portions of the principal amount at maturity of Securities that have
denominations larger than $1,000. Securities and portions thereof the Trustee
selects shall be in amounts of $1,000 of principal amount at maturity or a whole
multiple of $1,000 thereof. Provisions of this Indenture that apply to
Securities called for redemption also apply to portions of Securities called for
redemption. The Trustee shall notify the Company promptly of the Securities or
portions of Securities to be redeemed.

          SECTION 3.03.  Notice of Redemption. At least 30 days but not more
                         --------------------
than 60 days before a date for redemption of Securities, the Company shall mail
a notice of redemption by first-class mail to each Holder of Securities to be
redeemed at such Holder's registered address.

          The notice shall identify the Securities to be redeemed and shall
state:

          (1) the redemption date;

          (2) the redemption price and the amount of accrued interest to the
     redemption date;

          (3) the name and address of the Paying Agent;
<PAGE>

                                                                              34

          (4) that Securities called for redemption must be surrendered to the
     Paying Agent to collect the redemption price;

          (5) if fewer than all the outstanding Securities are to be redeemed,
     the certificate numbers of certificated securities and principal amounts at
     maturity of the particular Securities to be redeemed;

          (6) that, unless the Company defaults in making such redemption
     payment or the Paying Agent is prohibited from making such payment pursuant
     to the terms of this Indenture, interest on Securities (or portion thereof)
     called for redemption ceases to accrue on and after the redemption date;

          (7) the CUSIP number, if any, printed on the Securities being
     redeemed; and

          (8) that no representation is made as to the correctness or accuracy
     of the CUSIP number, if any, listed in such notice or printed on the
     Securities.

          At the Company's written request, the Trustee shall give the notice of
redemption in the Company's name and at the Company's expense. In such event,
the Company shall provide the Trustee with the information required by this
Section.

          SECTION 3.04.  Effect of Notice of Redemption. Once notice of
                         ------------------------------
redemption is mailed, Securities called for redemption become due and payable on
the redemption date and at the redemption price stated in the notice. Upon
surrender to the Paying Agent, such Securities shall be paid at the redemption
price stated in the notice, plus accrued interest and liquidated damages, if
any, to the redemption date; provided, however, that if the redemption date is
                             --------  -------
after a regular record date and on or prior to the interest payment date, the
accrued interest shall be payable to the Securityholder of the redeemed
Securities registered on the relevant record date. Failure to give notice or any
defect in the notice to any Holder shall not affect the validity of the notice
to any other Holder.

          SECTION 3.05.  Deposit of Redemption Price. Prior to 10:00 a.m. on
                         ---------------------------
the redemption date, the Company shall deposit with the Paying Agent (or, if the
Company or a Subsidiary is the Paying Agent, shall segregate and hold in trust)
money sufficient to pay the redemption price of and accrued interest and
liquidated damages (if any) on all Securities to be redeemed on that date other
than Securities or portions of Securities called for redemption that have been
delivered by the Company to the Trustee for cancelation. On and after the
redemption date, interest will cease to accrue on Securities or portions thereof
called for redemption so long as the Company has deposited with the Paying Agent
funds sufficient to pay the principal of, plus accrued and unpaid interest and
liquidated damages (if any) on, the Securities to be redeemed.

          SECTION 3.06.  Securities Redeemed in Part. Upon surrender of a
                         ---------------------------
Security that is redeemed in part, the Company shall execute and the Trustee
shall authenticate for the Holder (at the Company's expense) a new Security
equal in principal amount at maturity to the unredeemed portion of the Security
surrendered.
<PAGE>

                                                                              35

                                   ARTICLE 4

                                   Covenants
                                   ---------

          SECTION 4.01.  Payment of Securities. The Company shall promptly pay
                         ---------------------
the principal of and interest on the Securities on the dates and in the manner
provided in the Securities and in this Indenture. Principal and interest shall
be considered paid on the date due if on such date the Trustee or the Paying
Agent holds in accordance with this Indenture money sufficient to pay all
principal and interest then due and the Trustee or the Paying Agent, as the case
may be, is not prohibited from paying such money to the Securityholders on that
date pursuant to the terms of this Indenture.

          The Company shall pay interest on overdue principal at the rate
specified therefor in the Securities, and it shall pay interest on overdue
installments of interest at the same rate to the extent lawful.

          SECTION 4.02.  Provision of Financial Information. (a) Whether or
                         ----------------------------------
not required by the rules and regulations of the Commission, so long as any
Securities are outstanding, the Company shall furnish to the holders of
Securities:

          (1) all quarterly and annual financial information that would be
     required to be contained in a filing with the Commission on Forms 10-Q and
     10-K if the Company were required to file such forms, including a section
     entitled "Management's Discussion and Analysis of Financial Condition and
     Results of Operations" that describes the financial condition and results
     of operations of the Company and its consolidated Subsidiaries and, with
     respect to annual information only, a report thereon by the Company's
     certified independent accountants; and

          (2) all current reports that would be required to be filed with the
     Commission on Form 8-K if the Company were required to file such reports,
     in each case within the time period specified in the Commission's rules and
     regulations;

provided that no such information or reports shall be required to be furnished
- --------
prior to the date on which the exchange offer registration statement is required
by the terms of the Exchange and Registration Rights Agreement to be filed with
the Commission.

          (b)  Following the consummation of the Exchange Offer contemplated by
the Exchange and Registration Rights Agreement, whether or not required by the
rules and regulations of the Commission, the Company shall file a copy of all
such information and reports with the Commission for public availability within
the time periods specified in the Commission's rules and regulations (unless the
Commission will not accept such a filing) and make such information available to
prospective investors upon request. In addition, the Company shall, for so long
as any Securities remain outstanding, furnish to the holders of Securities, upon
request, the information required to be delivered pursuant to Rule 144A(d)(4)
under the Securities Act. The Company shall also comply with Section 314(a) of
the TIA.
<PAGE>

                                                                              36

          SECTION 4.03.  Limitation on Incurrence of Indebtedness. (a) The
                         -----------------------------------------
Company shall not, and shall not cause or permit any Restricted Subsidiary to,
directly or indirectly, Incur any Indebtedness (including Acquired
Indebtedness), except:

          (1) Indebtedness of the Company or any Subsidiary Guarantor if,
     immediately after giving effect to the Incurrence of such Indebtedness and
     the receipt and application of the net proceeds therefrom (including,
     without limitation, the application or use of the net proceeds therefrom to
     repay Indebtedness, consummate an Asset Acquisition or make any Restricted
     Payment):

               (a) the ratio of (x) Total Consolidated Indebtedness to (y)
          Annualized Pro Forma Consolidated Operating Cash Flow would be less
          than: 7.0 to 1.0, if the Indebtedness is to be Incurred prior to April
          1, 2005; or 6.0 to 1.0 if the Indebtedness is to be Incurred on or
          after April 1, 2005; or

               (b) in the case of any Incurrence of Indebtedness prior to April
          1, 2005 only, Total Consolidated Indebtedness would be equal to or
          less than 75% of Total Invested Capital;

          (2) Bank Indebtedness of the Company and its Restricted Subsidiaries
     in an aggregate principal amount not to exceed $600,000,000;

          (3) Indebtedness of the Company and its Restricted Subsidiaries
     outstanding from time to time pursuant to any Vendor Credit Arrangement;

          (4) Indebtedness owed by the Company to any Restricted Subsidiary or
     Indebtedness owed by a Restricted Subsidiary to the Company or another
     Restricted Subsidiary; provided, however, that, upon either (a) the
                            --------  -------
     transfer or other disposition by such Restricted Subsidiary or the Company
     of any Indebtedness so permitted under this clause (4) to a Person other
     than the Company or another Restricted Subsidiary or (b) the issuance
     (other than of directors' qualifying shares), sale, transfer or other
     disposition of shares of Capital Stock or other ownership interests
     (including by consolidation or merger) of such Restricted Subsidiary to a
     Person other than the Company or another such Restricted Subsidiary, the
     exception provided by this clause (4) shall no longer be applicable to such
     Indebtedness and such Indebtedness shall be deemed to have been Incurred at
     the time of any such issuance, sale, transfer or other disposition, as the
     case may be;

          (5) Indebtedness of the Company or any Restricted Subsidiary under any
     Hedging Agreement to the extent entered into to protect the Company or such
     Restricted Subsidiary from fluctuations in interest rates on any other
     Indebtedness permitted under this Indenture (including the Securities),
     currency exchange rates or commodity prices and not for speculative
     purposes;

          (6) Refinancing Indebtedness Incurred to Refinance any Indebtedness
     Incurred under the prior clause (1) or (3) above, the Securities or the
     Subsidiary Guarantees;
<PAGE>

                                                                              37

          (7)  Indebtedness of the Company under the Securities and Indebtedness
     of the Subsidiary Guarantors under the Subsidiary Guarantees, in each case
     Incurred in accordance with this Indenture;

          (8)  Capital Lease Obligations of the Company or any Restricted
     Subsidiary in an aggregate principal amount not in excess of $25,000,000 at
     any time outstanding;

          (9)  FCC Debt assumed in connection with the Digital Acquisition or
     the Wireless 2000 Acquisition;

          (10) Indebtedness of the Company or any Restricted Subsidiary
     consisting of a guarantee of Indebtedness of the Company or a Restricted
     Subsidiary that was permitted to be Incurred by another provision of this
     Section 4.03;

          (11) Indebtedness of the Company or any Restricted Subsidiary in
     respect of statutory obligations, performance, surety or appeal bonds or
     other obligations of a like nature Incurred in the ordinary course of
     business;

          (12) Indebtedness of a Restricted Subsidiary existing at the time such
     Restricted Subsidiary was acquired by the Company (other than Indebtedness
     Incurred in connection with, or in contemplation of, the transaction or
     series of related transactions pursuant to which such Restricted Subsidiary
     was acquired by the Company); provided, however, that on the date such
                                   --------  -------
     Restricted Subsidiary is acquired by the Company, the Company would have
     been able to Incur $1.00 of additional Indebtedness pursuant to clause (1)
     above after giving effect to the Incurrence of such Indebtedness pursuant
     to this clause (12) and the acquisition of such Restricted Subsidiary and
     Refinancing Indebtedness Incurred by the Company or such Restricted
     Subsidiary in respect of Indebtedness Incurred by such Restricted
     Subsidiary pursuant to this clause (12); and

          (13) Indebtedness of the Company not otherwise permitted to be
     Incurred pursuant to clauses (1) through (12) above which, together with
     any other outstanding Indebtedness Incurred pursuant to this clause (13),
     has an aggregate principal amount not in excess of $75,000,000 at any time
     outstanding.

          (b)  Indebtedness of a Person existing at the time such Person becomes
a Restricted Subsidiary or which is secured by a Lien on an asset acquired by
the Company or a Restricted Subsidiary (whether or not such Indebtedness is
assumed by the acquiring person) shall be deemed Incurred at the time the Person
becomes a Restricted Subsidiary or at the time of the asset acquisition, as the
case may be.

          (c)  For purposes of determining compliance with this Section 4.03:

          (1) in the event that an item of Indebtedness meets the criteria of
     more than one of the categories of Indebtedness permitted pursuant to
     clauses (1) through (13) above, the Company shall, in its sole discretion,
     be permitted to classify such item of Indebtedness in any manner that
     complies with this Section 4.03 and may from time to time reclassify such
     items of Indebtedness in any manner that would comply with this Section
     4.03 at the time of such reclassification;
<PAGE>

                                                                              38

          (2) Indebtedness permitted by this Section 4.03 need not be permitted
     solely by reference to one provision permitting such Indebtedness but may
     be permitted in part by one such provision and in part by one or more other
     provisions of this Section 4.03 permitting such Indebtedness;

          (3) in the event that Indebtedness meets the criteria of more than one
     of the types of Indebtedness described in this Section 4.03, the Company,
     in its sole discretion, shall classify such Indebtedness and only be
     required to include the amount of such Indebtedness in one of such clauses;
     and

          (4) accrual of interest (including interest paid-in-kind) and the
     accretion of accreted value shall not be deemed to be an Incurrence of
     Indebtedness for purposes of this Section 4.03.

          (d) Notwithstanding any other provision of this Section 4.03:

          (1) the maximum amount of Indebtedness that the Company or any
     Restricted Subsidiary may Incur pursuant to this Section 4.03 shall not be
     deemed to be exceeded solely as a result of fluctuations in the exchange
     rates of currencies; and

          (2) Indebtedness Incurred pursuant to the Credit Agreement prior to or
     on the date of this Indenture shall be treated as Incurred pursuant to
     clause (2) of paragraph (a) of this Section 4.03.

          SECTION 4.04.  Limitation on Restricted Payments. (a) The Company
                         ---------------------------------
shall not, and shall not cause or permit any Restricted Subsidiary to, directly
or indirectly, on or prior to December 31, 2002:

          (1) declare or pay any dividend, or make any distribution of any kind
     or character (whether in cash, property or securities), in respect of any
     class of Capital Stock of the Company, excluding any dividends or
     distributions payable solely in shares of Qualified Stock of the Company or
     in options, warrants or other rights to acquire Qualified Stock of the
     Company;

          (2) purchase, redeem or otherwise acquire or retire for value any
     shares of Capital Stock of the Company, any options, warrants or rights to
     purchase or acquire such shares or any securities convertible or
     exchangeable into such shares (other than any such shares of Capital Stock,
     options, warrants, rights or securities that are owned by the Company or a
     Restricted Subsidiary);

          (3) make any Investment (other than a Permitted Investment) in any
     Person other than the Company or a Restricted Subsidiary; or

          (4) redeem, defease, repurchase, retire or otherwise acquire or retire
     for value, prior to its scheduled maturity, repayment or any sinking fund
     payment, Subordinated Indebtedness or make any payment of interest or
     premium on, or distribution of any kind
<PAGE>

                                                                              39

     or character (whether in cash, property or securities) in respect of, the
     Series A Notes, excluding payments of interest or distributions payable
     solely in additional Series A Notes,

each of the transactions described in clauses (1) through (4) (other than any
exception to any such clause) being a "Restricted Payment"; and at any time
after December 31, 2002, the Company shall not, and shall not cause or permit
any Restricted Subsidiary to, directly or indirectly, make a Restricted Payment
if, at the time thereof:

          (A) a Default or an Event of Default shall have occurred and be
     continuing at the time of or after giving effect to such Restricted
     Payment;

          (B) immediately after giving effect to such Restricted Payment, the
     Company could not Incur at least $1.00 of additional Indebtedness pursuant
     to clause (1) of Section 4.03; and

          (C) immediately upon giving effect to such Restricted Payment, the
     aggregate amount of all Restricted Payments declared or made on or after
     the date of this Indenture (including any Designation Amount) exceeds the
     sum (without duplication) of:

               (1) the amount of (x) the Consolidated Cash Flow of the Company
          after December 31, 2002, through the end of the latest full fiscal
          quarter for which consolidated financial statements of the Company are
          available preceding the date of such Restricted Payment (treated as a
          single accounting period), less (y) 150% of the cumulative
          Consolidated Interest Expense of the Company after December 31, 2002,
          through the end of the latest full fiscal quarter for which
          consolidated financial statements of the Company are available
          preceding the date of such Restricted Payment (treated as a single
          accounting period); plus

               (2) the aggregate net cash proceeds (other than Excluded Cash
          Proceeds) received by the Company as a capital contribution in respect
          of Qualified Stock or from the proceeds of a sale of Qualified Stock
          made after the date of this Indenture (excluding in each case (x) the
          proceeds from a sale of Qualified Stock to a Restricted Subsidiary and
          (y) the proceeds from a sale of Qualified Stock to an employee stock
          ownership plan or other trust established by the Company or any of its
          Subsidiaries); plus

               (3) the aggregate net cash proceeds received by the Company or
          any Restricted Subsidiary from the sale, disposition or repayment
          (other than to the Company or a Restricted Subsidiary) of any
          Investment made after the date of this Indenture and constituting a
          Restricted Payment in an amount equal to the lesser of (x) the return
          of capital with respect to such Investment and (y) the initial amount
          of such Investment, in either case, less the cost of disposition of
          such Investment; plus

               (4) an amount equal to the consolidated Net Investment on the
          date of Revocation made by the Company and/or any Restricted
          Subsidiary in any
<PAGE>

                                                                              40

          Subsidiary of the Company that has been designated as an Unrestricted
          Subsidiary after the date of this Indenture upon its redesignation as
          a Restricted Subsidiary in accordance with Section 4.13.

          (b)  For purposes of:

          (1) the preceding clause (a)(C)(2), the value of the aggregate net
     cash proceeds received by the Company from, or as a capital contribution in
     connection with, the issuance of Qualified Stock either upon the conversion
     of convertible Indebtedness of the Company or any of its Restricted
     Subsidiaries or in exchange for outstanding Indebtedness of the Company or
     any of its Restricted Subsidiaries or upon the exercise of options,
     warrants or rights shall be the net cash proceeds received by the Company
     or any Restricted Subsidiary upon the issuance of such Indebtedness,
     options, warrants or rights plus the incremental amount received by the
     Company or any Restricted Subsidiary upon the conversion, exchange or
     exercise thereof;

          (2) the preceding clause (a)(C)(4), the value of the consolidated Net
     Investment on the date of Revocation shall be equal to the Fair Market
     Value of the aggregate amount of the Company's and/or any Restricted
     Subsidiary's Investments in such Subsidiary of the Company on the
     applicable date of Designation; and

          (3) determining the amount expended for Restricted Payments, cash
     distributed shall be valued at the face amount thereof and property other
     than cash shall be valued at its Fair Market Value on the date such
     Restricted Payment is made by the Company or a Restricted Subsidiary, as
     the case may be.

          (c)  The provisions of this Section 4.04 shall not prohibit:

          (1) the payment of any dividend or distribution within 60 days after
     the date of declaration thereof, if at such date of declaration such
     payment would comply with the provisions of this Indenture;

          (2) so long as no Default or Event of Default shall have occurred and
     be continuing, the purchase, redemption, retirement or other acquisition of
     any Capital Stock of the Company out of the net cash proceeds of the
     substantially concurrent capital contribution to the Company in connection
     with Qualified Stock or out of the net cash proceeds received by the
     Company from the substantially concurrent issue or sale (other than to a
     Restricted Subsidiary or to an employee stock ownership plan or other trust
     established by the Company or any of its Subsidiaries) of Qualified Stock;
     provided that (a) any such net cash proceeds shall be excluded from clause
     --------
     (a)(C)(2) and (b) such proceeds do not constitute Excluded Cash Proceeds;

          (3) so long as no Default or Event of Default shall have occurred and
     be continuing, the purchase, redemption, retirement, defeasance or other
     acquisition of Subordinated Indebtedness of the Company made by exchange
     for or conversion into, or out of the net cash proceeds received by the
     Company, or out of a capital contribution to the Company in connection with
     a concurrent issue and sale (other than to a Restricted
<PAGE>

                                                                              41

     Subsidiary) of, (a) Qualified Stock (provided that (x) any such net cash
     proceeds are excluded from clause (a)(C)(2), (y) such proceeds do not
     constitute Excluded Cash Proceeds and (z) such proceeds, if from a sale
     other than a Public Sale, are not applied to optionally redeem Securities
     on or prior to April 15 , 2002) or (b) other Subordinated Indebtedness of
     the Company that has an Average Life equal to or greater than the Average
     Life of the Subordinated Indebtedness being purchased, redeemed, retired,
     defeased or otherwise acquired and that is subordinated in right of payment
     to the Securities at least to the same extent as the Subordinated
     Indebtedness being purchased, redeemed, retired, defeased or otherwise
     acquired;

          (4) so long as no Default or Event of Default shall have occurred and
     be continuing, the making of a direct or indirect Investment constituting a
     Restricted Payment in an amount not to exceed the amount of the proceeds of
     a concurrent capital contribution in respect of Qualified Stock or from the
     issue or sale (other than to a Restricted Subsidiary) of Qualified Stock of
     the Company; provided that (a) any such net cash proceeds are excluded from
                  --------
     clause (a)(C)(2), (b) such proceeds do not constitute Excluded Cash
     Proceeds and (c) such proceeds, if from a sale other than a Public Sale,
     are not applied to optionally redeem Securities on or prior to April 15,
     2002;

          (5) so long as no Default or Event of Default shall have occurred and
     be continuing and so long as, immediately after giving effect to such
     Investment, the Company could Incur at least $1.00 of additional
     Indebtedness pursuant to clause (1) of Section 4.03, the making by the
     Company of a direct or indirect Investment constituting a Restricted
     Payment in any Person incorporated, formed or created for the purpose of
     acquiring one or more Qualified Licenses through participation in any
     auction or reauction of Licenses conducted by the FCC, in an amount not to
     exceed $50,000,000 at any time outstanding; provided that (a) such Person
                                                 --------
     shall qualify as an "entrepreneur" under the Communications Act in the case
     of any proposed acquisition of Qualified Licenses through participation in
     any auction or reauction of C-Block Licenses or F-Block Licenses conducted
     by the FCC, and (b) the Company shall have received, prior to making such
     Investment, from one or more Strategic Equity Investors, irrevocable,
     unconditional commitments to purchase Qualified Stock of the Company, (i)
     at the earliest to occur of (A) the date that is 30 days after the date on
     which such Person acquires any such Qualified Licenses, (B) the date that
     is 30 days after the date on which such Person withdraws from such auction
     or reauction, (C) the date that is 30 days after the date the FCC
     terminates such auction or reauction and (D) the date that is 180 days
     after the date on which any amounts were deposited by or on behalf of such
     Person in escrow with the FCC in connection with such proposed acquisition
     of Qualified Licenses, and (ii) in an amount not less than the amount of
     such Investment (plus the amount of all fees, expenses and other costs
     incurred in connection with such participation); provided further that if
                                                      -------- -------
     at any time the aggregate net cash proceeds paid to the Company by such
     Strategic Equity Investors shall exceed the amount of such Investment plus
     all fees, expenses and other costs incurred in connection with such
     participation (a) such commitments may terminate in accordance with their
     terms to the extent, but only to the extent, of such excess and (b) the
     Company may rescind all or a portion of the payments made by the Strategic
     Equity Investors for such Qualified Stock and redeem all or a portion of
     such Qualified Stock in an amount not greater than such
<PAGE>

                                                                              42

     excess; provided further that (x) the aggregate net proceeds received by
             ---------------
     the Company upon the purchase by such Strategic Equity Investors of such
     Qualified Stock are excluded from clause (a)(C)(2) unless such Person
     becomes a Restricted Subsidiary or is merged, consolidated or amalgamated
     with or into, or transfers or conveys substantially all its assets to, or
     is liquidated into the Company or a Restricted Subsidiary, (y) such
     proceeds shall not constitute Excluded Cash Proceeds and (z) such proceeds
     are not applied to optionally redeem the Securities prior to April 15,
     2002;

          (6) so long as no Default or Event of Default shall have occurred and
     be continuing and so long as, immediately after giving effect to such
     Investment, the Company could Incur at least $1.00 of additional
     Indebtedness pursuant to clause (1) of Section 4.03, the making by the
     Company of a direct or indirect Investment constituting a Restricted
     Payment in any Person engaged in a Permitted Business in an amount not to
     exceed $60,000,000 at any time outstanding; provided that the Company shall
                                                 --------
     have received, prior to making such Investment, from one or more Strategic
     Equity Investors, aggregate net cash proceeds from capital contributions or
     the issuance or sale of Capital Stock of the Company (other than
     Disqualified Stock, but including Qualified Stock issued upon the
     conversion of convertible Indebtedness or upon the exercise of options,
     warrants or rights to purchase Qualified Stock) in an amount equal to the
     amount of such Investment plus the amount of all fees, expenses and other
     costs incurred in connection with such Investment (regardless of whether or
     not such Investment is consummated); provided further that (x) the proceeds
                                          -------- -------
     received by the Company as capital contributions from, or the purchase of
     Capital Stock of the Company by, such Strategic Equity Investors are
     excluded from clause (a)(C)(2) unless such Person becomes a Restricted
     Subsidiary or is merged, consolidated or amalgamated with or into, or
     transfers or conveys substantially all its assets to, or is liquidated into
     the Company or a Restricted Subsidiary, (y) such proceeds shall not
     constitute Excluded Cash Proceeds and (z) such proceeds are not applied to
     optionally redeem the Securities prior to April 15, 2002; or

          (7) so long as no Default or Event of Default has occurred and is
     continuing, the repurchase, redemption, acquisition or retirement for value
     of any Capital Stock of the Company held by any member of management of the
     Company or any of its Subsidiaries pursuant to any management equity
     subscription agreement, stock option agreement, restricted stock agreement
     or other similar agreement; provided that (a) the aggregate amount of such
                                 --------
     dividends or distributions shall not exceed $4,000,000 in any twelve-month
     period, (b) any unused amount in any twelve-month period may be carried
     forward to one or more future twelve-month periods and (c) the aggregate of
     all unused amounts that may be carried forward to any future twelve-month
     period shall not exceed $16,000,000.

          (d)  Restricted Payments made pursuant to clauses (1) and (7) of
paragraph (c) shall be included in making the determination of available amounts
under clause (C) of paragraph (a), Restricted Payments made pursuant to clauses
(5) and (6) of paragraph (c) shall be included in making the determination of
available amounts under clause (C) of paragraph (a) unless, after giving effect
to such Investment, such Person becomes a Restricted Subsidiary or is merged,
consolidated or amalgamated with or into, or transfers or conveys substantially
all its assets to, or is liquidated into, the Company or a Restricted Subsidiary
and Restricted Payments
<PAGE>

                                                                              43

made pursuant to clauses (2), (3) and (4) of paragraph (c) shall not be included
in making the determination of available amounts under clause (C) of paragraph
(a).

          SECTION 4.05.  Limitation on Restrictions Affecting Restricted
                         -----------------------------------------------
Subsidiaries. The Company shall not, and shall not cause or permit any
- -------------
Restricted Subsidiary to, directly or indirectly, create or otherwise cause or
suffer to exist any consensual encumbrances or restrictions of any kind on the
ability of any Restricted Subsidiary to:

          (1) pay, directly or indirectly, dividends, in cash or otherwise, or
     make any other distributions in respect of its Capital Stock or pay any
     Indebtedness or other obligation owed to the Company or any other
     Restricted Subsidiary;

          (2) make any Investment in the Company or any other Restricted
     Subsidiary; or

          (3) transfer any of its property or assets to the Company or any other
     Restricted Subsidiary,

except for such encumbrances or restrictions existing under or by reason of:

          (A) any agreement in effect on the date of this Indenture as any such
     agreement is in effect on such date;

          (B) any agreement relating to any Indebtedness Incurred by such
     Restricted Subsidiary prior to the date on which such Restricted Subsidiary
     was acquired by the Company and outstanding on such date and not Incurred
     in anticipation or contemplation of becoming a Restricted Subsidiary;
     provided, however, that such encumbrance or restriction shall not apply to
     --------  -------
     any property or assets of the Company or any Restricted Subsidiary other
     than such Restricted Subsidiary;

          (C) customary provisions contained in an agreement which has been
     entered into for the sale or disposition of all or substantially all of the
     Capital Stock or assets of a Restricted Subsidiary;

     provided, however, that such encumbrance or restriction is applicable only
     --------  -------
     to such Restricted Subsidiary or its property and assets;

          (D) any agreement effecting a Refinancing or amendment of Indebtedness
     Incurred pursuant to any agreement referred to in clause (A) or (B) above;
     provided, however, that the provisions contained in such Refinancing or
     --------  -------
     amendment agreement relating to such encumbrance or restriction are no more
     restrictive in any material respect than the provisions contained in the
     agreement that is the subject thereof in the reasonable judgment of the
     board of directors of the Company;

          (E) this Indenture;

          (F) applicable law or any applicable rule, regulation or order;
<PAGE>

                                                                              44

          (G) customary provisions restricting subletting or assignment of any
     lease governing any leasehold interest of any Restricted Subsidiary;

          (H) purchase money obligations for property acquired in the ordinary
     course of business that impose restrictions of the type referred to in
     clause (3) of this Section 4.05; and

          (I) restrictions of the type referred to in clause (3) of this Section
     4.05 contained in security agreements securing Indebtedness of a Restricted
     Subsidiary to the extent that such Liens restrict the transfer of property
     subject to such agreements.

          SECTION 4.06.  Limitation on Certain Asset Dispositions.  (a)  The
                         -----------------------------------------
Company shall not, and shall not cause or permit any Restricted Subsidiary to,
directly or indirectly, make any Asset Disposition unless:

          (1) the Company or such Restricted Subsidiary, as the case may be,
     receives consideration for such Asset Disposition at least equal to the
     Fair Market Value of the assets sold or disposed of as determined by the
     board of directors of the Company in good faith and evidenced by a
     resolution of such board of directors filed with the Trustee;

          (2) other than in the case of a Permitted Asset Swap, not less than
     75% of the consideration received by the Company or such Restricted
     Subsidiary from the disposition consists of:

               (A) cash or Cash Equivalents;

               (B) the assumption of Indebtedness (other than non-recourse
          Indebtedness or any Subordinated Indebtedness) of the Company or such
          Restricted Subsidiary or other obligations relating to such assets
          (accompanied by an irrevocable and unconditional release of the
          Company or such Restricted Subsidiary from all liability on the
          Indebtedness or other obligations assumed); or

               (C) notes or other obligations received by the Company or such
          Restricted Subsidiary from such transferee that are converted by the
          Company or such Restricted Subsidiary into cash or Cash Equivalents
          concurrently with the receipt of such notes or other obligations (to
          the extent of the cash actually received by the Company); and

          (3) all Net Available Proceeds, less any amounts invested within 365
     days of such Asset Disposition to acquire all or substantially all of the
     assets of, or a majority of the Voting Stock of, an entity primarily
     engaged in a Permitted Business, to make a capital expenditure or to
     acquire other long-term assets that are used or useful in a Permitted
     Business, are applied, on or prior to the 365th day after such Asset
     Disposition, unless and to the extent that the Company shall determine to
     make an Offer to Purchase, to the permanent reduction and prepayment of any
     Senior Indebtedness of
<PAGE>

                                                                              45

     the Company then outstanding (including a permanent reduction of the
     commitments in respect thereof).

          (b)  Any Net Available Proceeds from any Asset Disposition which is
subject to the immediately preceding sentence that are not applied as provided
in the immediately preceding sentence shall be used promptly after the
expiration of the 365th day after such Asset Disposition (or earlier if the
Company so elects) to make an Offer to Purchase outstanding Securities at a
purchase price in cash equal to (a) 100% of the Accreted Value on the Purchase
Date, if such Purchase Date is on or before April 15, 2004 and (b) 100% of the
principal amount at maturity plus accrued and unpaid interest to the Purchase
Date, if such Purchase Date is after April 15, 2004; provided, however, that if
                                                     --------  -------
the Company elects (or is required by the terms of any other Senior Subordinated
Indebtedness) an offer may be made ratably to purchase the Securities and such
other Senior Subordinated Indebtedness.  Notwithstanding the foregoing, the
Company may defer making any Offer to Purchase outstanding Securities (and any
offer to purchase other Senior Subordinated Indebtedness ratably) until there
are aggregate unutilized Net Available Proceeds from Asset Dispositions
otherwise subject to the two immediately preceding sentences equal to or in
excess of $15,000,000 (at which time the entire unutilized Net Available
Proceeds from Asset Dispositions otherwise subject to the two immediately
preceding sentences, and not just the amount in excess of $15,000,000, shall be
applied as required pursuant to this paragraph).  Any remaining Net Available
Proceeds following the completion of the required Offer to Purchase (and any
offer to purchase other Senior Subordinated Indebtedness ratably) may be used by
the Company for any other purpose (subject to the other provisions of this
Indenture), and the amount of Net Available Proceeds then required to be
otherwise applied in accordance with this Section 4.06 shall be reset to zero.
These provisions shall not apply to a transaction consummated in compliance with
the provisions of Section 5.01.

          (c)  Pending application as set forth above, the Net Available
Proceeds of any Asset Disposition may be invested in cash or Cash Equivalents or
used to reduce temporarily Indebtedness outstanding under any revolving credit
agreement to which the Company is a party and pursuant to which it has Incurred
Indebtedness.

          (d)  The Company shall comply, to the extent applicable, with the
requirements of Section 14(e) of the Exchange Act and any other securities laws
or regulations in connection with the repurchase of Securities pursuant to this
Section 4.06.  To the extent that the provisions of any securities laws or
regulations conflict with provisions of this Section 4.06, the Company shall be
required to comply with the applicable securities laws and regulations and shall
not be deemed to have breached its obligations under this Section 4.06 by virtue
thereof.
<PAGE>

                                                                              46

          SECTION 4.07.  Limitation on Transactions with Affiliates.  (a)  The
                         -------------------------------------------
Company shall not, and shall not cause or permit any Restricted Subsidiary to,
directly or indirectly, conduct any business or enter into, renew or extend any
transaction with any of their respective Affiliates, including, without
limitation, the purchase, sale, lease or exchange of property, the rendering of
any service or the making of any guarantee, loan, advance or Investment, either
directly or indirectly, unless the terms of such transaction are at least as
favorable as the terms that could be obtained at such time by the Company or
such Restricted Subsidiary, as the case may be, in a comparable transaction made
on an arm's-length basis with a Person that is not such an Affiliate; provided,
                                                                      --------
however, that:
- -------

          (1) in any transaction involving aggregate consideration in excess of
     $10,000,000, the Company shall deliver an Officers' Certificate to the
     Trustee stating that a majority of the disinterested directors of the board
     of directors of the Company or such Restricted Subsidiary, as the case may
     be, have determined, in their good faith judgment, that the terms of such
     transaction are at least as favorable as the terms that could be obtained
     by the Company or such Restricted Subsidiary, as the case may be, in a
     comparable transaction made on an arms'-length basis between unaffiliated
     parties; and

          (2) if the aggregate consideration is in excess of $25,000,000, the
     Company shall also deliver to the Trustee, prior to the consummation of the
     transaction, the favorable written opinion of a nationally recognized
     accounting, appraisal or investment banking firm as to the fairness of the
     transaction to the holders of the Securities, from a financial point of
     view.

          (b)  Notwithstanding the foregoing, the restrictions set forth in this
Section 4.07 shall not apply to:

          (1) transactions between or among the Company and/or any Restricted
     Subsidiaries;

          (2) any Restricted Payment or Permitted Investment permitted by
     Section 4.04;

          (3) directors' fees, indemnification and similar arrangements,
     officers' indemnification, employee stock option or employee benefit plans
     and employee salaries and bonuses paid or created in the ordinary course of
     business;

          (4) any other agreement in effect on the date of this Indenture, as
     the same shall be amended from time to time; provided that any material
                                                  --------
     amendment shall be required to comply with the provisions of the
     immediately preceding paragraph;

          (5) the Acquisitions;

          (6) transactions with AT&T or any of its Affiliates relating to the
     marketing or provision of telecommunication services or related hardware,
     software or equipment on terms that are no less favorable (when taken as a
     whole) to the Company or such Restricted Subsidiary, as applicable, than
     those available from unaffiliated third parties;
<PAGE>

                                                                              47

          (7) transactions involving the leasing or sharing or other use by the
     Company or any Restricted Subsidiary of communications network facilities
     (including, without limitation, cable or fiber lines, equipment or
     transmission capacity) of any Affiliate of the Company (such Affiliate
     being a "Related Party") on terms that are no less favorable (when taken as
     a whole) to the Company or such Restricted Subsidiary, as applicable, than
     those available from such Related Party to unaffiliated third parties;

          (8)  transactions involving the provision of telecommunication
     services by a Related Party in the ordinary course of its business to the
     Company or any Restricted Subsidiary, or by the Company or any Restricted
     Subsidiary to a Related Party, on terms that are no less favorable (when
     taken as a whole) to the Company or such Restricted Subsidiary, as
     applicable, than those available from such Related Party to unaffiliated
     third parties;

          (9)  any sales agency agreements pursuant to which an Affiliate has
     the right to market any or all of the products or services of the Company
     or any of the Restricted Subsidiaries;

          (10) transactions involving the sale, transfer or other disposition of
     any shares of Capital Stock of any Marketing Affiliate; provided that such
                                                             --------
     Marketing Affiliate is not engaged in any activity other than the
     registration, holding, maintenance or protection of trademarks and the
     licensing thereof; and

          (11) customary commercial banking, investment banking, underwriting,
     placement agent or financial advisory fees paid in connection with services
     rendered to the Company and its subsidiaries in the ordinary course.

          SECTION 4.08.  Change of Control.  (a)  Upon the occurrence of a
                         ------------------
Change of Control, each holder of Securities shall have the right to require the
Company to repurchase all or any part of such holder's Securities at a purchase
price in cash equal to (a) 101% of the Accreted Value on the Purchase Date, if
such date is on or before April 15, 2004, or (b) 101% of the principal amount at
maturity, plus accrued and unpaid interest, if any, to the Purchase Date
(subject to the right of holders of record on the relevant record date to
receive interest due on the relevant interest payment date), if such date is
after April 15, 2004.

          (b)  Within 30 days following any Change of Control, the Company shall
be required to mail a notice to each holder of Securities, with a copy to the
Trustee (the "Change of Control Offer"), stating that the Company is commencing
an Offer to Purchase all outstanding Securities at a purchase price in cash
equal to (a) 101% of the Accreted Value on the Purchase Date, if such date is on
or before April 15, 2004, or (b) 101% of the principal amount at maturity, plus
accrued and unpaid interest, if any, to the Purchase Date (subject to the right
of holders of record on the relevant record date to receive interest due on the
relevant interest payment date), if such date is after April 15 , 2004.

          (c)  The Company shall not be required to make a Change of Control
Offer upon a Change of Control if a third party makes the Change of Control
Offer in the manner, at the times and otherwise in compliance with the
requirements set forth in this Indenture applicable to
<PAGE>

                                                                              48

a Change of Control Offer made by the Company and purchases all Securities
validly tendered and not withdrawn under such Change of Control Offer.

          (d)  The Company shall be required to comply, to the extent
applicable, with the requirements of Section 14(e) of the Exchange Act and any
other securities laws or regulations in connection with the repurchase of
Securities pursuant to this Section 4.08.  To the extent that the provisions of
any securities laws or regulations conflict with provisions of this Section
4.08, the Company shall be required to comply with the applicable securities
laws and regulations and shall not be deemed to have breached its obligations
under this Section 4.08 by virtue thereof.

          (e)  In the event that, at the time of a Change of Control, the terms
of the Bank Indebtedness restrict or prohibit the repurchase of Securities
pursuant to this Section 4.08, then, prior to the mailing of the notice to
holders of Securities as provided in the immediately following paragraph, but in
any event within 30 days following any Change of Control, the Company shall be
required to:

          (1) repay in full all Bank Indebtedness; or

          (2) obtain the requisite consent under the agreements governing such
     Bank Indebtedness to permit the repurchase of the Securities as required by
     this Section 4.08.

          SECTION 4.09.  Compliance Certificate.  The Company shall deliver to
                         -----------------------
the Trustee within 120 days after the end of each fiscal year of the Company an
Officers' Certificate stating that in the course of the performance by the
signers of their duties as Officers of the Company they would normally have
knowledge of any Default and whether or not the signers know of any Default that
occurred during such period.  If they do, the certificate shall describe the
Default, its status and what action the Company is taking or proposes to take
with respect thereto. The Company also shall comply with Section 314(a)(4) of
the TIA (including the making of all representations and warranties mandated
thereby).

          SECTION 4.10.  Further Instruments and Acts.  Upon request of the
                         -----------------------------
Trustee, the Company shall execute and deliver such further instruments and do
such further acts as may be reasonably necessary or proper to carry out more
effectively the purpose of this Indenture.

          SECTION 4.11.  Future Subsidiary Guarantors.  The Company shall cause
                         -----------------------------
each Restricted Subsidiary that Incurs Indebtedness to become a Subsidiary
Guarantor, and, if applicable, execute and deliver to the Trustee a supplemental
indenture in the form set forth in Exhibit C pursuant to which such Restricted
Subsidiary will guarantee payment of the Securities; provided that the Company
                                                     --------
shall not cause any Special Purpose Subsidiary to become a Subsidiary Guarantor
unless such Special Purpose Subsidiary Incurs Indebtedness other than
Indebtedness in respect of the Credit Agreement (or any Refinancing Indebtedness
Incurred to Refinance such Indebtedness) or FCC Debt.  Each Subsidiary Guarantee
will be limited to an amount not to exceed the maximum amount that can be
guaranteed by that Restricted Subsidiary without rendering the Subsidiary
Guarantee, as it relates to such Restricted Subsidiary, voidable under
applicable law relating to fraudulent conveyance or fraudulent transfer or
similar laws affecting the rights of creditors generally.
<PAGE>

                                                                              49

          SECTION 4.12.  Limitation on Activities of the Company and the
                         -----------------------------------------------
Restricted Subsidiaries.  The Company shall not, and shall not permit any
- ------------------------
Restricted Subsidiary to, engage in any business other than a Permitted
Business, except to such extent as is not material to the Company and its
Restricted Subsidiaries, taken as a whole.

          SECTION 4.13.  Limitation on Designations of Unrestricted
                         ------------------------------------------
Subsidiaries.  (a) The Company may designate any Subsidiary of the Company
- -------------
(other than an Ineligible Subsidiary) as an "Unrestricted Subsidiary" under this
Indenture (a "Designation") only if:

          (1) no Default or Event of Default shall have occurred and be
     continuing at the time of or after giving effect to such Designation;

          (2) the Company would be permitted under this Indenture to make an
     Investment at the time of Designation (assuming the effectiveness of such
     Designation) in an amount (the "Designation Amount") equal to the Fair
     Market Value of the aggregate amount of its Investments in such Subsidiary
     on such date; and

          (3) except in the case of a Subsidiary of the Company in which an
     Investment is being made pursuant to, and as permitted by, paragraph (c) of
     Section 4.04, the Company would be permitted to Incur $1.00 of additional
     Indebtedness pursuant to clause (a)(1) of Section 4.03 at the time of
     Designation (assuming the effectiveness of such Designation).

          (b)  In the event of any such Designation, the Company shall be deemed
to have made an Investment constituting a Restricted Payment pursuant to Section
4.04 for all purposes of this Indenture in the Designation Amount.

          (c)  The Company shall not, and shall not permit any Restricted
Subsidiary to, at any time:

          (1) provide direct or indirect credit support for, or a guarantee of,
     any Indebtedness of any Unrestricted Subsidiary (including of any
     undertaking, agreement or instrument evidencing such Indebtedness);

          (2) be directly or indirectly liable for any Indebtedness of any
     Unrestricted Subsidiary; or

          (3) be directly or indirectly liable for any Indebtedness which
     provides that the holder thereof may (upon notice, lapse of time or both)
     declare a default thereon or cause the payment thereof to be accelerated or
     payable prior to its final scheduled maturity upon the occurrence of a
     default with respect to any Indebtedness of any Unrestricted Subsidiary
     (including any right to take enforcement action against such Unrestricted
     Subsidiary), except, in the case of clause (1) or (2) above, to the extent
     permitted under Section 4.04.
<PAGE>

                                                                              50

          (d) The Company may revoke any Designation of a Subsidiary as an
Unrestricted Subsidiary (a "Revocation"), whereupon such Subsidiary shall then
constitute a Restricted Subsidiary, if no Default shall have occurred and be
continuing at the time of and after giving effect to such Revocation. In the
event of any such Revocation, the Company shall be deemed to continue to have a
permanent Investment in an Unrestricted Subsidiary constituting a Restricted
Payment pursuant Section 4.04 for all purposes under this Indenture in an amount
(if positive) equal to:

          (1) the Fair Market Value of the aggregate amount of the Company's
     Investments in such Subsidiary at the time of such Revocation; less

          (2) the portion (proportionate to the Company's equity interest in
     such Subsidiary) of the Fair Market Value of the net assets of such
     Subsidiary at the time of such Revocation.

          (e)  All Designations and Revocations must be evidenced by a
resolution of the board of directors of the Company delivered to the Trustee
certifying compliance with the foregoing provisions.

          SECTION 4.14.  Limitation on Layered Indebtedness.  The Company shall
                         -----------------------------------
not:

          (1) directly or indirectly Incur any Indebtedness that by its terms
     would expressly rank senior in right of payment to the Securities and rank
     subordinate in right of payment to any other Indebtedness of the Company;
     or

          (2) cause or permit any Subsidiary Guarantor to, and no Subsidiary
     Guarantor shall, directly or indirectly, Incur any Indebtedness that by its
     terms would expressly rank senior in right of payment to the Subsidiary
     Guarantee of such Subsidiary Guarantor and rank subordinate in right of
     payment to any other Indebtedness of such Subsidiary Guarantor;

provided that no Indebtedness shall be deemed to be subordinated solely by
- --------
virtue of being unsecured.

          SECTION 4.15. Amendments to the Securities Purchase Agreement.  The
                        ------------------------------------------------
Company shall not amend, modify or waive, or refrain from enforcing, any
provision of the Securities Purchase Agreement in any manner that would cause
the net cash proceeds from capital contributions or sales of Qualified Stock of
the Company pursuant to the Securities Purchase Agreement to be less than
$128,000,000.
<PAGE>

                                                                              51

                                   ARTICLE 5

                               Successor Company
                               -----------------

          SECTION 5.01.   Merger, Consolidation and Certain Sales of Assets.
                          --------------------------------------------------
(a)  The Company shall not consolidate or merge with or into any Person, or
sell, assign, lease, convey or otherwise dispose of (or cause or permit any
Restricted Subsidiary to consolidate or merge with or into any Person, or to
sell, assign, lease, convey or otherwise dispose of) all or substantially all of
the Company's assets (determined on a consolidated basis for the Company and the
Restricted Subsidiaries), whether as an entirety or substantially an entirety in
one transaction or a series of related transactions, including by way of
liquidation or dissolution, to any Person unless, in each such case:

          (1) the entity formed by or surviving any such consolidation or merger
     (if other than the Company or such Restricted Subsidiary, as the case may
     be), or to which such sale, assignment, lease, conveyance or other
     disposition shall have been made (the "Surviving Entity"), is a corporation
     organized and existing under the laws of the United States, any state
     thereof or the District of Columbia;

          (2) the Surviving Entity assumes by supplemental indenture all of the
     obligations of the Company on the Securities and under this Indenture;

          (3) immediately after giving effect to such transaction and the use of
     any net proceeds therefrom on a pro forma basis, the Company or the
     Surviving Entity, as the case may be, could Incur at least $1.00 of
     Indebtedness pursuant to clause (1) of Section 4.03;

          (4) immediately after giving effect to such transaction and treating
     any Indebtedness which becomes an obligation of the Company or any of its
     Restricted Subsidiaries as a result of such transactions as having been
     Incurred by the Company or such Restricted Subsidiary, as the case may be,
     at the time of the transaction, no Default or Event of Default shall have
     occurred and be continuing;

          (5) the Company delivers to the Trustee an Officers' Certificate and
     an Opinion of Counsel, each stating that such merger, consolidation or sale
     of assets and such supplemental indenture, if any, comply with this
     Indenture; and

          (6) the Company delivers to the Trustee an Opinion of Counsel to the
     effect that holders of Securities will not recognize income, gain or loss
     for federal income tax purposes as a result of such merger, consolidation
     or sale of assets and will be subject to federal income tax on the same
     amounts, in the same manner and at the same times as would have been the
     case if such merger, sale or consolidation had not occurred.

The provisions of this paragraph (a) shall not apply to any merger of a
Restricted Subsidiary with or into the Company or a Wholly Owned Subsidiary or
the release of any Subsidiary Guarantor in accordance with the terms of its
Subsidiary Guarantee and this Indenture in connection with any transaction
complying with the provisions of Section 4.06.
<PAGE>

                                                                              52

          (b) The Company shall not permit any Subsidiary Guarantor to
consolidate or merge with or into any Person, or sell, assign, lease, convey or
otherwise dispose of all or substantially all of such Subsidiary Guarantor's
assets, whether as an entirety or substantially an entirety in one transaction
or a series of related transactions, including by way of liquidation or
dissolution, to any Person unless, in each such case:

          (1) the entity formed by or surviving any such consolidation or merger
     (if other than such Subsidiary Guarantor), or to which such sale,
     assignment, lease, conveyance or other disposition shall have been made, is
     a corporation organized and existing under the laws of the United States,
     any state thereof or the District of Columbia;

          (2) such corporation assumes by supplemental indenture all of the
     obligations of the Subsidiary Guarantor, if any, under its Subsidiary
     Guarantee;

          (3) immediately after giving effect to such transaction and treating
     any Indebtedness which becomes an obligation of such Subsidiary Guarantor
     as a result of such transactions as having been Incurred by such Subsidiary
     Guarantor at the time of the transaction, no Default or Event of Default
     shall have occurred and be continuing; and

          (4) the Company delivers to the Trustee an Officers' Certificate and
     an Opinion of Counsel, each stating that such merger, consolidation or sale
     of assets and such supplemental indenture, if any, comply with this
     Indenture.


                                   ARTICLE 6

                             Defaults and Remedies
                             ---------------------

          SECTION 6.01.  Events of Default.  An Event of Default occurs under
                         ------------------
this Indenture if:


          (1) the Company defaults in any payment of interest on any Security
     when due and payable, whether or not such payment shall be prohibited by
     Article 10, continued for 30 days;

          (2) the Company defaults in the payment of the Accreted Value or
     principal of any Security when due and payable at its Stated Maturity, upon
     required redemption or repurchase, upon declaration or otherwise, whether
     or not such payment shall be prohibited by Article 10;

          (3) the Company fails to comply with its obligations under Section
     5.01;

          (4) the Company fails to comply for 30 days after notice with any of
     its obligations under Section 4.02, 4.03, 4.04, 4.05, 4.06, 4.07, 4.08,
     4.11, 4.12, 4.13, 4.14 or
<PAGE>

                                                                              53

     4.15 (in each case, other than a failure to purchase Securities when
     required under Section 4.06 or 4.08);

          (5) the Company fails to comply for 60 days after notice with its
     other agreements contained in this Indenture or the Securities (other than
     those referred to in clause (1), (2), (3) or (4) above;

          (6) the Company or any Significant Subsidiary fails to pay any
     Indebtedness within any applicable grace period after final maturity or the
     acceleration of any such Indebtedness by the holders thereof because of a
     default if the total amount of such Indebtedness unpaid or accelerated
     exceeds $15,000,000 or its foreign currency equivalent (the "cross
     acceleration provision") and such failure continues for 10 days after
     receipt of the notice specified below;

          (7) the Company or any Significant Subsidiary pursuant to or within
     the meaning of any Bankruptcy Law:

               (A) commences a voluntary case;

               (B) consents to the entry of an order for relief against it in an
          involuntary case;

               (C) consents to the appointment of a Custodian of it or for any
          substantial part of its property; or

               (D) makes a general assignment for the benefit of its creditors
          or takes any comparable action under any foreign laws relating to
          insolvency;

          (8) a court of competent jurisdiction renders a final judgment or
     decree (not subject to appeal) for the payment of money in excess of
     $15,000,000 or its foreign currency equivalent at the time it is entered
     against the Company or a Significant Subsidiary and such judgment or decree
     is not discharged, waived or stayed if:

               (A) an enforcement proceeding thereon is commenced by any
          creditor;

          or

               (B) such judgment or decree remains outstanding for a period of
          60 days following such judgment and is not discharged, waived or
          stayed (the "judgment default provision"); or

          (9) any Subsidiary Guarantee ceases to be in full force and effect
     (except as contemplated by the terms thereof) or any Subsidiary Guarantor
     or Person acting by or on behalf of such Subsidiary Guarantor denies or
     disaffirms such Subsidiary Guarantor's obligations under this Indenture or
     any Subsidiary Guarantee and such Default continues for 10 days after
     receipt of the notice specified below.

          The foregoing shall constitute Events of Default whatever the reason
for any such Event of Default and whether it is voluntary or involuntary or is
effected by operation of
<PAGE>

                                                                              54

law or pursuant to any judgment, decree or order of any court or any order, rule
or regulation of any administrative or governmental body.

          A Default under clause (4), (5) or (8) shall not constitute an Event
of Default until the Trustee or the holders of at least 25% in aggregate
principal amount at maturity of the outstanding Securities notify the Company of
the Default and the Company does not cure such Default within the time specified
in clauses (4), (5) or (8) after receipt of such notice. Such notice must
specify the Default, demand that it be remedied and state that such notice is a
"Notice of Default".

          SECTION 6.02.  Acceleration.  If an Event of Default (other than an
                         -------------
Event of Default specified in clause (7) of Section 6.01 with respect to the
Company) occurs and is continuing, the Trustee by notice to the Company, or the
Holders of at least 25% in principal amount at maturity of the outstanding
Securities by notice to the Company, may declare the principal of and accrued
but unpaid interest on all the Securities to be due and payable.  Upon such a
declaration, such principal and interest shall be due and payable immediately.
If an Event of Default specified in clause (7) of Section 6.01 with respect to
the Company occurs, the principal of and interest on all the Securities shall
ipso facto become and be immediately due and payable without any declaration or
- ---- -----
other act on the part of the Trustee or any Securityholders.  The Holders of a
majority in principal amount at maturity of the Securities by notice to the
Trustee may rescind an acceleration and its consequences if the rescission would
not conflict with any judgment or decree and if all existing Events of Default
have been cured or waived except nonpayment of principal or interest that has
become due solely because of acceleration.  No such rescission shall affect any
subsequent Default or impair any right consequent thereto.

          SECTION 6.03.  Other Remedies.  If an Event of Default occurs and is
                         ---------------
continuing, the Trustee may pursue any available remedy to collect the payment
of principal of or interest on the Securities or to enforce the performance of
any provision of the Securities or this Indenture.

          The Trustee may maintain a proceeding even if it does not possess any
of the Securities or does not produce any of them in the proceeding.  A delay or
omission by the Trustee or any Securityholder in exercising any right or remedy
accruing upon an Event of Default shall not impair the right or remedy or
constitute a waiver of or acquiescence in the Event of Default. No remedy is
exclusive of any other remedy.  All available remedies are cumulative.

          SECTION 6.04.  Waiver of Past Defaults.  The Holders of a majority in
                         ------------------------
principal amount at maturity of the Securities by notice to the Trustee may
waive an existing Default and its consequences except (i) a Default in the
payment of the Accreted Value of, principal amount at maturity of, or interest
on a Security or (ii) a Default arising from the failure to redeem or purchase
any Security when required pursuant to the terms of this Indenture or (iii) a
Default in respect of a provision that under Section 9.02 cannot be amended
without the consent of each Securityholder affected.  When a Default is waived,
it is deemed cured, but no such waiver shall extend to any subsequent or other
Default or impair any consequent right.
<PAGE>

                                                                              55

          SECTION 6.05.  Control by Majority.  The Holders of a majority in
                         --------------------
principal amount at maturity of the Securities may direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee or of
exercising any trust or power conferred on the Trustee.  However, the Trustee
may refuse to follow any direction that conflicts with law or this Indenture or,
subject to Section 7.01, that the Trustee determines is unduly prejudicial to
the rights of other Securityholders or would involve the Trustee in personal
liability; provided, however, that the Trustee may take any other action deemed
           --------  -------
proper by the Trustee that is not inconsistent with such direction.  Prior to
taking any action hereunder, the Trustee shall be entitled to indemnification
satisfactory to it in its sole discretion against all losses and expenses caused
by taking or not taking such action.

          SECTION 6.06.  Limitation on Suits.  Except to enforce the right to
                         --------------------
receive payment of principal, premium (if any) or interest when due, no
Securityholder may pursue any remedy with respect to this Indenture or the
Securities unless:

          (1) the Holder gives to the Trustee written notice stating that an
     Event of Default is continuing;

          (2) the Holders of at least 25% in principal amount at maturity of the
     Securities make a written request to the Trustee to pursue the remedy;

          (3) such Holder or Holders offer to the Trustee security or indemnity
     reasonably satisfactory to the Trustee against any loss, liability or
     expense;

          (4) the Trustee does not comply with the request within 60 days after
     receipt of the request and the offer of security or indemnity; and

          (5) the Holders of a majority in principal amount at maturity of the
     Securities do not give the Trustee a direction inconsistent with the
     request during such 60-day period.

          A Securityholder may not use this Indenture to prejudice the rights of
another Securityholder or to obtain a preference or priority over another
Securityholder.

          SECTION 6.07.  Rights of Holders To Receive Payment.  Notwithstanding
                         -------------------------------------
any other provision of this Indenture, the right of any Holder to receive
payment of principal of and liquidated damages and interest on the Securities
held by such Holder, on or after the respective due dates expressed in the
Securities, or to bring suit for the enforcement of any such payment on or after
such respective dates, shall not be impaired or affected without the consent of
such Holder.

          SECTION 6.08.  Collection Suit by Trustee.  If an Event of Default
                         ---------------------------
specified in clause (1) or (2) of Section 6.01 occurs and is continuing, the
Trustee may recover judgment in its own name and as trustee of an express trust
against the Company for the whole amount then due and owing (together with
interest on any unpaid interest to the extent lawful) and the amounts provided
for in Section 7.07.
<PAGE>

                                                                              56

          SECTION 6.09.  Trustee May File Proofs of Claim.  The Trustee may file
                         ---------------------------------
such proofs of claim and other papers or documents as may be necessary or
advisable in order to have the claims of the Trustee and the Securityholders
allowed in any judicial proceedings relative to the Company, any Subsidiary or
Subsidiary Guarantor, their creditors or their property and, unless prohibited
by law or applicable regulations, may vote on behalf of the Holders in any
election of a trustee in bankruptcy or other Person performing similar
functions, and any Custodian in any such judicial proceeding is hereby
authorized by each Holder to make payments to the Trustee and, in the event that
the Trustee shall consent to the making of such payments directly to the
Holders, to pay to the Trustee any amount due it for the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agents
and its counsel, and any other amounts due the Trustee under Section 7.07.

          SECTION 6.10.  Priorities.  If the Trustee collects any money or
                         -----------
property pursuant to this Article 6, it shall pay out the money or property in
the following order:

          FIRST:  to the Trustee for amounts due under Section 7.07;

          SECOND:  to holders of Senior Indebtedness of the Company to the
     extent required by Article 10;

          THIRD:  to Securityholders for amounts due and unpaid on the
     Securities for principal and interest, ratably, and any liquidated damages
     without preference or priority of any kind, according to the amounts due
     and payable on the Securities for principal, any liquidated damages and
     interest, respectively; and

          FOURTH:  to the Company.

          The Trustee may fix a record date and payment date for any payment to
Securityholders pursuant to this Section.  At least 15 days before such record
date, the Trustee shall mail to each Securityholder and the Company a notice
that states the record date, the payment date and amount to be paid.

          SECTION 6.11.  Undertaking for Costs.  In any suit for the enforcement
                         ----------------------
of any right or remedy under this Indenture or in any suit against the Trustee
for any action taken or omitted by it as Trustee, a court in its discretion may
require the filing by any party litigant in the suit of an undertaking to pay
the costs of the suit, and the court in its discretion may assess reasonable
costs, including reasonable attorneys' fees, against any party litigant in the
suit, having due regard to the merits and good faith of the claims or defenses
made by the party litigant.  This Section 6.11 does not apply to a suit by the
Trustee, a suit by a Holder pursuant to Section 6.07 or a suit by Holders of
more than 10% in principal amount at maturity of the Securities.
<PAGE>

                                                                              57

          SECTION 6.12.  Waiver of Stay or Extension Laws.  Neither the Company
                         ---------------------------------
nor any Subsidiary Guarantor (to the extent it may lawfully do so) shall at any
time insist upon, or plead, or in any manner whatsoever claim or take the
benefit or advantage of, any stay or extension law wherever enacted, now or at
any time hereafter in force, which may affect the covenants or the performance
of this Indenture; and the Company and each Subsidiary Guarantor (to the extent
that it may lawfully do so) hereby expressly waives all benefit or advantage of
any such law, and shall not hinder, delay or impede the execution of any power
herein granted to the Trustee, but shall suffer and permit the execution of
every such power as though no such law had been enacted.


                                   ARTICLE 7

                                    Trustee
                                    -------

          SECTION 7.01.  Duties of Trustee.  (a)  If an Event of Default has
                         ------------------
occurred and is continuing, the Trustee shall exercise the rights and powers
vested in it by this Indenture and use the same degree of care and skill in
their exercise as a prudent Person would exercise or use under the circumstances
in the conduct of such Person's own affairs.

          (b)  Except during the continuance of an Event of Default:

          (1) the Trustee undertakes to perform such duties and only such duties
     as are specifically set forth in this Indenture and no implied covenants or
     obligations shall be read into this Indenture against the Trustee; and

          (2) in the absence of bad faith on its part, the Trustee may
     conclusively rely, as to the truth of the statements and the correctness of
     the opinions expressed therein, upon certificates or opinions furnished to
     the Trustee and conforming to the requirements of this Indenture.  However,
     the Trustee shall examine the certificates and opinions to determine
     whether or not they conform to the requirements of this Indenture.

          (c)  The Trustee may not be relieved from liability for its own
negligent action, its own negligent failure to act or its own wilful misconduct,
except that:

          (1) this paragraph does not limit the effect of paragraph (b) of this
     Section;

          (2) the Trustee shall not be liable for any error of judgment made in
     good faith by a Trust Officer unless it is proved that the Trustee was
     negligent in ascertaining the pertinent facts; and

          (3) the Trustee shall not be liable with respect to any action it
     takes or omits to take in good faith in accordance with a direction
     received by it pursuant to Section 6.05.

          (d)  Every provision of this Indenture that in any way relates to the
Trustee is subject to paragraphs (a), (b) and (c) of this Section 7.01.
<PAGE>

                                                                              58
          (e)  The Trustee shall not be liable for interest on any money
received by it except as the Trustee may agree in writing with the Company.

          (f)  Money held in trust by the Trustee need not be segregated from
other funds except to the extent required by law.

          (g)  No provision of this Indenture shall require the Trustee to
expend or risk its own funds or otherwise incur financial liability in the
performance of any of its duties hereunder or in the exercise of any of its
rights or powers, if it shall have reasonable grounds to believe that repayment
of such funds or adequate indemnity against such risk or liability is not
reasonably assured to it.

          (h)  Every provision of this Indenture relating to the conduct or
affecting the liability of or affording protection to the Trustee shall be
subject to the provisions of this Section 7.01 and to the provisions of the TIA.

          SECTION 7.02.  Rights of Trustee. (a)  The Trustee may conclusively
                         ------------------
rely and shall be fully protected in acting or refraining from acting upon any
resolution, certificate, statement, instrument, opinion, report, notice,
request, direction, consent, order, bond, debenture or other paper or document
believed to be genuine and to have been signed or presented by the proper party
or parties.

          (b)  Before the Trustee acts or refrains from acting, it may require
an Officers' Certificate or an Opinion of Counsel.  The Trustee shall not be
liable for any action it takes or omits to take in good faith in reliance on the
Officers' Certificate or Opinion of Counsel.

          (c)  The Trustee may execute any of the trusts or powers hereunder or
perform any duties hereunder either directly or by or through, agents,
attorneys, custodians or nominees and the Trustee shall not be responsible for
any misconduct or negligence on the part of any agent, attorney, custodian or
nominee appointed with due care by it hereunder.

          (d)  The Trustee shall not be liable for any action it takes or omits
to take in good faith which it believes to be authorized or within its rights or
powers; provided, however, that the Trustee's conduct does not constitute wilful
        --------  -------
misconduct or negligence.

          (e)  The Trustee may consult with counsel, and the advice or opinion
of counsel with respect to legal matters relating to this Indenture and the
Securities shall be full and complete authorization and protection from
liability in respect to any action taken, omitted or suffered by it hereunder in
good faith and in accordance with the advice or opinion of such counsel.

          (f)  The Trustee shall not be bound to make any investigation into the
facts or matters stated in any resolution, certificate, statement, instrument,
opinion, report, notice, request, consent, order, approval, bond, debenture,
note or other paper or document unless requested in writing to do so by the
Holders of not less than a majority in principal amount at maturity of the
Securities at the time outstanding, but the Trustee, in its discretion, may make
such further inquiry or investigation into such facts or matters as it may see
fit, and, if the
<PAGE>

                                                                              59

Trustee shall determine to make such further inquiry or investigation, it shall
be entitled to examine the books, records and premises of the Company,
personally or by agent or attorney.

          (g)  The Trustee shall not be accountable for the use by the Company
of the proceeds of the Securities.

          SECTION 7.03.  Individual Rights of Trustee.  The Trustee in its
                         -----------------------------
individual or any other capacity may become the owner or pledgee of Securities
and may otherwise deal with the Company or its Affiliates with the same rights
it would have if it were not Trustee.  Any Paying Agent, Registrar or co-paying
agent may do the same with like rights.  However, the Trustee must comply with
Sections 7.10 and 7.11.

          SECTION 7.04.  Trustee's Disclaimer.  The Trustee shall not be
                         ---------------------
responsible for and makes no representation as to the validity or adequacy of
this Indenture or the Securities, it shall not be accountable for the Company's
use of the proceeds from the Securities, and it shall not be responsible for any
statement of the Company in this Indenture or in any document issued in
connection with the sale of the Securities or in the Securities other than the
Trustee's certificate of authentication.

          SECTION 7.05.  Notice of Defaults.  If a Default occurs and is
                         -------------------
continuing and if it is actually known to a Trust Officer, the Trustee shall
mail to each Securityholder notice of the Default within the earlier of 90 days
after it occurs or 30 days after it actually becomes known to a Trust Officer.
Except in the case of a Default in payment of principal of or interest on any
Security (including payments pursuant to the mandatory redemption provisions of
such Security, if any), the Trustee may withhold the notice if and so long as a
committee of its Trust Officers in good faith determines that withholding the
notice is in the interests of Securityholders.

          SECTION 7.06.  Reports by Trustee to Holders.  As promptly as
                         ------------------------------
practicable after each March 1 beginning with the March 1 following the date of
this Indenture, and in any event prior to May 1 in each year, the Trustee shall
mail to each Securityholder a brief report dated as of May 1 that complies with
Section 313(a) of the TIA.  The Trustee shall also comply with Section 313(b) of
the TIA.

          A copy of each report at the time of its mailing to Securityholders
shall be filed with the Commission and each stock exchange (if any) on which the
Securities are listed.  The Company agrees to notify promptly the Trustee in
writing whenever the Securities become listed on any stock exchange and of any
delisting thereof.

          SECTION 7.07.  Compensation and Indemnity.  The Company shall pay to
                         ---------------------------
the Trustee from time to time reasonable compensation for its services.  The
Trustee's compensation shall not be limited by any law on compensation of a
trustee of an express trust.  The Company shall reimburse the Trustee upon
request for all reasonable out-of-pocket expenses incurred or made by it,
including costs of collection, in addition to the compensation for its services.
Such expenses shall include the reasonable compensation and expenses,
disbursements and advances of the Trustee's agents, counsel, accountants and
experts.  The Company and each Subsidiary Guarantor, jointly and severally shall
indemnify the Trustee, its directors, officers, employees and agents against any
and all loss, liability or expense (including reasonable attorneys' fees and
<PAGE>

                                                                              60

expenses) incurred by or in connection with the administration of this trust and
the performance of its duties hereunder. The Trustee shall notify the Company of
any claim for which it may seek indemnity promptly upon obtaining actual
knowledge thereof; provided, however, that any failure so to notify the Company
                   --------  -------
shall not relieve the Company or any Subsidiary Guarantor of its indemnity
obligations hereunder. The Company shall defend the claim and the indemnified
party shall provide reasonable cooperation at the Company's expense in the
defense. Such indemnified parties may have separate counsel and the Company and
the Subsidiary Guarantors, as applicable shall pay the fees and expenses of such
counsel; provided, however, that the Company shall not be required to pay such
         --------  -------
fees and expenses if it assumes such indemnified parties' defense and, in such
indemnified parties' reasonable judgment, there is no conflict of interest
between the Company and the Subsidiary Guarantor, as applicable, and such
parties in connection with such defense. The Company need not reimburse any
expense or indemnify against any loss, liability or expense incurred by an
indemnified party through such party's own wilful misconduct, negligence or bad
faith.

          To secure the Company's payment obligations in this Section 7.07, the
Trustee shall have a lien prior to the Securities on all money or property held
or collected by the Trustee other than money or property held in trust to pay
principal of and interest and any liquidated damages on particular Securities.

          The Company's payment obligations pursuant to this Section 7.07 shall
survive the satisfaction or discharge of this Indenture, any rejection or
termination of this Indenture under any Bankruptcy Law or the resignation or
removal of the Trustee. When the Trustee incurs expenses after the occurrence of
a Default specified in clause (7) or (8) of Section 6.01 with respect to the
Company, the expenses are intended to constitute expenses of administration
under the Bankruptcy Law.

          SECTION 7.08.  Replacement of Trustee. The Trustee may resign at any
                         ----------------------
time by so notifying the Company. The Holders of a majority in principal amount
at maturity of the Securities may remove the Trustee by so notifying the Trustee
and may appoint a successor Trustee. The Company shall remove the Trustee if:

          (1) the Trustee fails to comply with Section 7.10;

          (2) the Trustee is adjudged bankrupt or insolvent;

          (3) a receiver or other public officer takes charge of the Trustee or
          its property;

          (4) the Trustee otherwise becomes incapable of acting; or

          (5) the Trustee increases its fees (exclusive of fees for
          extraordinary services) by more than 10% in any twelve month period.

          If the Trustee resigns, is removed by the Company or by the Holders of
a majority in principal amount at maturity of the Securities and such Holders do
not reasonably promptly appoint a successor Trustee, or if a vacancy exists in
the office of Trustee for any
<PAGE>

                                                                              61

reason (the Trustee in such event being referred to herein as the retiring
Trustee), the Company shall promptly appoint a successor Trustee.

          A successor Trustee shall deliver a written acceptance of its
appointment to the retiring Trustee and to the Company. Thereupon the
resignation or removal of the retiring Trustee shall become effective, and the
successor Trustee shall have all the rights, powers and duties of the Trustee
under this Indenture. The successor Trustee shall mail a notice of its
succession to Securityholders. The retiring Trustee shall promptly transfer all
property held by it as Trustee to the successor Trustee, subject to the lien
provided for in Section 7.07.

          If a successor Trustee does not take office within 60 days after the
retiring Trustee resigns or is removed, the retiring Trustee or the Holders of
10% in principal amount at maturity of the Securities may petition any court of
competent jurisdiction for the appointment of a successor Trustee.

          If the Trustee fails to comply with Section 7.10, any Securityholder
may petition any court of competent jurisdiction for the removal of the Trustee
and the appointment of a successor Trustee.

          Notwithstanding the replacement of the Trustee pursuant to this
Section, the Company's obligations under Section 7.07 shall continue for the
benefit of the retiring Trustee.

          SECTION 7.09.  Successor Trustee by Merger. If the Trustee
                         ---------------------------
consolidates with, merges or converts into, or transfers all or substantially
all its corporate trust business or assets to, another corporation or banking
association, the resulting, surviving or transferee corporation without any
further act shall be the successor Trustee.

          In case at the time such successor or successors by merger, conversion
or consolidation to the Trustee shall succeed to the trusts created by this
Indenture any of the Securities shall have been authenticated but not delivered,
any such successor to the Trustee may adopt the certificate of authentication of
any predecessor trustee, and deliver such Securities so authenticated; and in
case at that time any of the Securities shall not have been authenticated, any
successor to the Trustee may authenticate such Securities in the name of the
successor to the Trustee; and in all such cases such certificates shall have the
full force which it is anywhere in the Securities or in this Indenture provided
that the certificate of the Trustee shall have.

          SECTION 7.10.  Eligibility; Disqualification. The Trustee shall at
                         -----------------------------
all times satisfy the requirements of Section 310(a) of the TIA. The Trustee
shall have a combined capital and surplus of at least $100,000,000 as set forth
in its most recent published annual report of condition. The Trustee shall
comply with Section 3.01(b) of the TIA; provided, however, that there shall be
                                        --------  -------
excluded from the operation of Section 3.01(b)(1) of the TIA any indenture or
indentures under which other securities or certificates of interest or
participation in other securities of the Company are outstanding if the
requirements for such exclusion set forth in Section 3.01(b)(1) of the TIA are
met.

          SECTION 7.11.  Preferential Collection of Claims Against Company. The
                         -------------------------------------------------
Trustee shall comply with Section 311(a) of the TIA, excluding any creditor
relationship listed in
<PAGE>

                                                                              62

Section 311(b) of the TIA. A Trustee who has resigned or been removed shall be
subject to Section 311(a) of the TIA to the extent indicated.

          SECTION 7.12.  Trustee Acting as Paying Agent or Registrar. In the
                         -------------------------------------------
event that the Trustee is also acting as a Paying Agent or Registrar hereunder,
the rights and protections afforded to the Trustee pursuant to this Article 7
shall also be afforded to such Paying Agent or Registrar.

                                   ARTICLE 8

                      Discharge of Indenture; Defeasance
                      ----------------------------------

          SECTION 8.01.  Discharge of Liability on Securities; Defeasance. (a)
                         ------------------------------------------------
When (i) the Company delivers to the Trustee all outstanding Securities (other
than Securities replaced pursuant to Section 2.07) for cancelation or (ii) all
outstanding Securities have become due and payable, whether at maturity or as a
result of the mailing of a notice of redemption pursuant to Article 3, and the
Company irrevocably deposits with the Trustee funds or U.S. Government
Obligations on which payment of principal and interest when due will be
sufficient to pay at maturity or upon redemption all outstanding Securities,
including interest thereon to maturity or such redemption date (other than
Securities replaced pursuant to Section 2.07), and if in either case the Company
pays all other sums payable hereunder by the Company, then this Indenture shall,
subject to Section 8.01(c), cease to be of further effect. The Trustee shall
acknowledge satisfaction and discharge of this Indenture on demand of the
Company accompanied by an Officers' Certificate and an Opinion of Counsel and at
the cost and expense of the Company.

          (b)  Subject to Sections 8.01(c) and 8.02, the Company at any time may
terminate (i) all of its obligations under the Securities and this Indenture
("legal defeasance option") or (ii) its obligations under Sections 4.02, 4.03,
4.04, 4.05, 4.06, 4.07, 4.08, 4.09, 4.10, 4.11, 4.12, 4.13, 4.14 and 4.15 and
the operation of Section 5.01(a)(3), 6.01(4), 6.01(6), 6.01(7) (with respect to
Significant Subsidiaries of the Company only) and 6.01(8) (with respect to
Significant Subsidiaries of the Company only) ("covenant defeasance option").
The Company may exercise its legal defeasance option notwithstanding its prior
exercise of its covenant defeasance option. In the event that the Company
terminates all of its obligations under the Securities and this Indenture by
exercising its legal defeasance option, the obligations under the Subsidiary
Guarantees shall each be terminated simultaneously with the termination of such
obligations.

          If the Company exercises its legal defeasance option, payment of the
Securities may not be accelerated because of an Event of Default. If the Company
exercises its covenant defeasance option, payment of the Securities may not be
accelerated because of an Event of Default specified in Section 6.01(4),
6.01(6), 6.01(7) (with respect to Significant Subsidiaries of the Company only)
or 6.01(8) because of the failure of the Company to comply with clauses (3) and
(4) of Section 5.01(a).

          Upon satisfaction of the conditions set forth herein and upon request
of the Company, the Trustee shall acknowledge in writing the discharge of those
obligations that the Company terminates.
<PAGE>

                                                                              63

          (c)  Notwithstanding clauses (a) and (b) above, the Company's
obligations in Sections 2.03, 2.04, 2.05, 2.06, 2.07, 2.08, 2.09, 7.07, 7.08 and
in this Article 8 shall survive until the Securities have been paid in full.
Thereafter, the Company's obligations in Sections 7.07, 8.04 and 8.05 shall
survive.

          SECTION 8.02.  Conditions to Defeasance. The Company may exercise its
                         ------------------------
legal defeasance option or its covenant defeasance option only if:

          (1)  the Company irrevocably deposits in trust with the Trustee money
     or U.S. Government Obligations for the payment of principal, premium (if
     any) and interest on the Securities to maturity or redemption, as the case
     may be;

          (2)  the Company delivers to the Trustee a certificate from a
     nationally recognized firm of independent accountants expressing their
     opinion that the payments of principal and interest when due and without
     reinvestment on the deposited U.S. Government Obligations plus any
     deposited money without investment will provide cash at such times and in
     such amounts as will be sufficient to pay principal and interest when due
     on all the Securities to maturity or redemption, as the case may be;

          (3)  123 days pass after the deposit is made and during the 123-day
     period no Default specified in clause (7) or (8) of Section 6.01 with
     respect to the Company occurs which is continuing at the end of the period;

          (4)  the deposit does not constitute a default under any other
     agreement binding on the Company and is not prohibited by Article 10;

          (5)  the Company delivers to the Trustee an Opinion of Counsel to the
     effect that the trust resulting from the deposit does not constitute, or is
     qualified as, a regulated investment company under the Investment Company
     Act of 1940;

          (6)  in the case of the legal defeasance option, the Company shall
     have delivered to the Trustee an Opinion of Counsel stating that (i) the
     Company has received from, or there has been published by, the Internal
     Revenue Service a ruling, or (ii) since the date of this Indenture there
     has been a change in the applicable Federal income tax law, in either case
     to the effect that, and based thereon such Opinion of Counsel shall confirm
     that, the Securityholders will not recognize income, gain or loss for
     Federal income tax purposes as a result of such defeasance and will be
     subject to Federal income tax on the same amounts, in the same manner and
     at the same times as would have been the case if such defeasance had not
     occurred;

          (7)  in the case of the covenant defeasance option, the Company shall
     have delivered to the Trustee an Opinion of Counsel to the effect that the
     Securityholders will not recognize income, gain or loss for Federal income
     tax purposes as a result of such covenant defeasance and will be subject to
     Federal income tax on the same amounts, in the same manner and at the same
     times as would have been the case if such covenant defeasance had not
     occurred; and
<PAGE>

                                                                              64

          (8)  the Company delivers to the Trustee an Officers' Certificate and
     an Opinion of Counsel, each stating that all conditions precedent to the
     defeasance and discharge of the Securities as contemplated by this Article
     8 have been complied with.

          Before or after a deposit, the Company may make arrangements
satisfactory to the Trustee for the redemption of Securities at a future date in
accordance with Article 3.

          SECTION 8.03.  Application of Trust Money. The Trustee shall hold in
                         --------------------------
trust money or U.S. Government Obligations deposited with it pursuant to this
Article 8. It shall apply the deposited money and the money from U.S. Government
Obligations through the Paying Agent and in accordance with this Indenture to
the payment of principal of and interest on the Securities. Money and securities
so held in trust are not subject to Article 10.

          SECTION 8.04.  Repayment to Company. The Trustee and the Paying Agent
                         --------------------
shall promptly turn over to the Company upon request any excess money or
securities held by them at any time.

          Subject to any applicable abandoned property law, the Trustee and the
Paying Agent shall pay to the Company upon written request any money held by
them for the payment of principal or interest that remains unclaimed for two
years, and, thereafter, Securityholders entitled to the money must look to the
Company for payment as general creditors.

          SECTION 8.05.  Indemnity for Government Obligations. The Company
                         ------------------------------------
shall pay and shall indemnify the Trustee against any tax, fee or other charge
imposed on or assessed against deposited U.S. Government Obligations or the
principal and interest received on such U.S. Government Obligations.

          SECTION 8.06.  Reinstatement. If the Trustee or Paying Agent is
                         -------------
unable to apply any money or U.S. Government Obligations in accordance with this
Article 8 by reason of any legal proceeding or by reason of any order or
judgment of any court or governmental authority enjoining, restraining or
otherwise prohibiting such application, the Company's obligations under this
Indenture and the Securities shall be revived and reinstated as though no
deposit had occurred pursuant to this Article 8 until such time as the Trustee
or Paying Agent is permitted to apply all such money or U.S. Government
Obligations in accordance with this Article 8; provided, however, that, if the
                                               --------  -------
Company has made any payment of interest on or principal of any Securities
because of the reinstatement of its obligations, the Company shall be subrogated
to the rights of the Holders of such Securities to receive such payment from the
money or U.S. Government Obligations held by the Trustee or Paying Agent.

                                   ARTICLE 9

                                  Amendments
                                  ----------

          SECTION 9.01.  Without Consent of Holders. (a) Without the consent
                         --------------------------
of any Holder of Securities, the Company, the Subsidiary Guarantors and the
Trustee may amend this Indenture to:
<PAGE>

                                                                              65

          (1)  cure any ambiguity, omission, defect or inconsistency;

          (2)  comply with Article 5;

          (3)  provide for uncertificated Securities in addition to, or in place
     of, certificated Securities; provided, however, that the uncertificated
                                  --------  -------
     Securities are issued in registered form for purposes of Section 163(f) of
     the Code, or in a manner such that the uncertificated Securities are
     described in Section 163(f)(2)(B) of the Code;

          (4)  make any change in Article 10 or Article 12 that would limit or
     terminate the benefits available to any holder of Senior Indebtedness of
     the Company (or any Representative thereof) under Article 10 or Article 12;

          (5)  add additional guarantees with respect to the Securities;

          (6)  secure the Securities;

          (7)  add to the covenants of the Company for the benefit of the
     Securityholders;

          (8)  surrender any right or power herein conferred upon the Company;

          (9)  make any change that does not adversely affect the rights of any
     Securityholder;

          (10) provide for the issuance of the Exchange Securities or Private
     Exchange Securities, subject to the provisions of this Indenture; or

          (11) comply with any requirement of the Commission in connection with
     the qualification of this Indenture under the TIA.

          (b)  No amendment may be made under this Section 9.01, that adversely
affects the rights under Article 10 or Article 12 of any holder of Senior
Indebtedness of the Company then outstanding unless the holders of such Senior
Indebtedness (or any group or representative thereof authorized to give a
consent) consent to such change.

          (c)  After an amendment under this Section 9.01 becomes effective, the
Company shall mail to Securityholders a notice briefly describing such
amendment. The failure to give such notice to all Securityholders, or any defect
therein, shall not impair or affect the validity of the amendment.

          SECTION 9.02.  With Consent of Holders. The Company, the Subsidiary
                         -----------------------
Guarantors and the Trustee may amend this Indenture or the Securities without
notice to any Securityholder but with the written consent of the Holders of a
majority in aggregate principal amount at maturity of the Securities then
outstanding (including consents obtained in connection with a tender offer or
exchange for the Securities). However, without the consent of each
Securityholder affected, an amendment may not:
<PAGE>

                                                                              66

          (1) reduce the amount of Securities whose Holders must consent to an
     amendment;

          (2) reduce the rate of, or extend the time for payment of, interest or
     any liquidated damages on any Security;

          (3) reduce the principal of, or extend the Stated Maturity of, any
     Security;

          (4) reduce the premium payable upon the redemption of any Security or
     change the time at which any Security may be redeemed in accordance with
     Article 3;

          (5) make any Security payable in money other than that stated in the
     Security;

          (6) make any change in Article 10 or Article 12 that adversely affects
     the rights of any Holder of Securities under Article 10 or Article 12;

          (7) impair the right of any Holder of Securities to receive payment of
     principal of and interest or any liquidated damages on such Holder's
     Securities on or after the due dates therefor or to institute suit for the
     enforcement of any payment on or with respect to such Holder's Securities;

          (8) make any change in the amendment provisions which require the
     consent of each Holder of Securities or in the waiver provisions; or

          (9) modify the Subsidiary Guarantees in any manner adverse to the
     Holders of Securities.

          It shall not be necessary for the consent of the Holders under this
Section 9.02 to approve the particular form of any proposed amendment, but it
shall be sufficient if such consent approves the substance thereof.

          After an amendment under this Section 9.02 becomes effective, the
Company shall mail to Securityholders a notice briefly describing such
amendment. The failure to give such notice to all Securityholders, or any defect
therein, shall not impair or affect the validity of an amendment under this
Section 9.02.

          SECTION 9.03.  Compliance with Trust Indenture Act. Every amendment
                         -----------------------------------
to this Indenture or the Securities shall comply with the TIA as then in effect.

          SECTION 9.04.  Revocation and Effect of Consents and Waivers. A
                         ---------------------------------------------
consent to an amendment or a waiver by a Holder of a Security shall bind the
Holder and every subsequent Holder of that Security or portion of the Security
that evidences the same debt as the consenting Holder's Security, even if
notation of the consent or waiver is not made on the Security. However, any such
Holder or subsequent Holder may revoke the consent or waiver as to such Holder's
Security or portion of the Security if the Trustee receives the notice of
revocation before the date on which the Trustee receives an Officers'
Certificate from the Company certifying that
<PAGE>

                                                                              67

the requisite number of consents have been received. After an amendment or
waiver becomes effective, it shall bind every Securityholder. An amendment or
waiver becomes effective upon the (i) receipt by the Company or the Trustee of
the requisite number of consents, (ii) satisfaction of conditions to
effectiveness as set forth in this Indenture and any indenture supplemental
hereto containing such amendment or waiver and (iii) execution of such amendment
or waiver (or supplemental indenture) by the Company and the Trustee.

          The Company may, but shall not be obligated to, fix a record date for
the purpose of determining the Securityholders entitled to give their consent or
take any other action described above or required or permitted to be taken
pursuant to this Indenture. If a record date is fixed, then notwithstanding the
immediately preceding paragraph, those Persons who were Securityholders at such
record date (or their duly designated proxies), and only those Persons, shall be
entitled to give such consent or to revoke any consent previously given or to
take any such action, whether or not such Persons continue to be Holders after
such record date. No such consent shall be valid or effective for more than 120
days after such record date.

          SECTION 9.05.  Notation on or Exchange of Securities. If an amendment
                         -------------------------------------
changes the terms of a Security, the Trustee may require the Holder of the
Security to deliver it to the Trustee. The Trustee may place an appropriate
notation on the Security regarding the changed terms and return it to the
Holder. Alternatively, if the Company or the Trustee so determines, the Company
in exchange for the Security shall issue and the Trustee shall authenticate a
new Security that reflects the changed terms. Failure to make the appropriate
notation or to issue a new Security shall not affect the validity of such
amendment.

          SECTION 9.06.  Trustee To Sign Amendments. The Trustee shall sign any
                         --------------------------
amendment authorized pursuant to this Article 9 if the amendment does not
adversely affect the rights, duties, liabilities or immunities of the Trustee.
If it does, the Trustee may but need not sign it. In signing such amendment the
Trustee shall be entitled to receive indemnity reasonably satisfactory to it and
to receive, and (subject to Section 7.01) shall be fully protected in relying
upon, an Officers' Certificate and an Opinion of Counsel stating that such
amendment is authorized or permitted by this Indenture and that such amendment
is the legal, valid and binding obligation of the Company and the Subsidiary
Guarantors enforceable against them in accordance with its terms, subject to
customary exceptions, and complies with the provisions hereof (including Section
9.03).

          SECTION 9.07.  Payment for Consent. Neither the Company nor any
                         -------------------
Affiliate of the Company shall, directly or indirectly, pay or cause to be paid
any consideration, whether by way of interest, fee or otherwise, to any Holder
for or as an inducement to any consent, waiver or amendment of any of the terms
or provisions of this Indenture or the Securities unless such consideration is
offered to be paid to all Holders that so consent, waive or agree to amend in
the time frame set forth in solicitation documents relating to such consent,
waiver or agreement.

                                  ARTICLE 10

                                 Subordination
                                 -------------
<PAGE>

                                                                              68

          SECTION 10.01.  Agreement To Subordinate. The Company agrees, and
                          ------------------------
each Securityholder by accepting a Security agrees, that the Indebtedness
evidenced by the Securities is subordinated in right of payment, to the extent
and in the manner provided in this Article 10, to the prior payment in full of
all Senior Indebtedness of the Company and that the subordination is for the
benefit of and enforceable by the holders of such Senior Indebtedness. The
Securities shall in all respects rank pari passu with all other Senior
                                      ---- -----
Subordinated Indebtedness of the Company and only Indebtedness of the Company
that is Senior Indebtedness of the Company shall rank senior to the Securities
in accordance with the provisions set forth herein. For purposes of this Article
10, the Indebtedness evidenced by the Securities shall be deemed to include the
liquidated damages payable pursuant to the provisions set forth in the
Securities and the Registration Agreement. All provisions of this Article 10
shall be subject to Section 10.12.

          SECTION 10.02.  Liquidation, Dissolution, Bankruptcy. Upon any
                          ------------------------------------
payment or distribution of the assets of the Company to creditors upon a total
or partial liquidation or a total or partial dissolution of the Company or in a
bankruptcy, reorganization, insolvency, receivership or similar proceeding
relating to the Company or its property:

          (1) holders of Senior Indebtedness of the Company shall be entitled to
     receive payment in full of such Senior Indebtedness before Securityholders
     shall be entitled to receive any payment of principal of or interest on the
     Securities; and

          (2) until the Senior Indebtedness of the Company is paid in full, any
     payment or distribution to which Securityholders would be entitled but for
     this Article 10 shall be made to holders of such Senior Indebtedness as
     their interests may appear, except that Securityholders may receive shares
     of stock and any debt securities that are subordinated to such Senior
     Indebtedness to at least the same extent as the Securities.

          SECTION 10.03.  Default on Senior Indebtedness. The Company may not
                          ------------------------------
pay the principal of, premium (if any) or interest on the Securities or make any
deposit pursuant to Section 8.01 and may not otherwise repurchase, redeem or
otherwise retire any Securities (collectively, "pay the Securities") if (i) any
Designated Senior Indebtedness of the Company is not paid when due or (ii) any
other default on such Designated Senior Indebtedness occurs and the maturity of
such Designated Senior Indebtedness is accelerated in accordance with its terms
unless, in either case, (x) the default has been cured or waived and any such
acceleration has been rescinded or (y) such Designated Senior Indebtedness has
been paid in full; provided, however, that the Company may pay the Securities
                   --------  -------
without regard to the foregoing if the Company and the Trustee receive written
notice approving such payment from the Representative of such Designated Senior
Indebtedness with respect to which either of the events set forth in clause (i)
or (ii) of this sentence has occurred and is continuing. During the continuance
of any default (other than a default described in clause (i) or (ii) of the
preceding sentence) with respect to any Designated Senior Indebtedness of the
Company pursuant to which the maturity thereof may be accelerated immediately
without further notice (except such notice as may be required to effect such
acceleration) or the expiration of any applicable grace periods, the Company may
not pay the Securities for a period (a "Payment Blockage Period") commencing
upon the receipt by the Trustee (with a copy to the Company) of written notice
(a "Blockage Notice") of such default from the Representative of such Designated
Senior Indebtedness specifying an election to effect a Payment Blockage Period
and ending 179 days
<PAGE>

                                                                              69

thereafter (or earlier if such Payment Blockage Period is terminated (i) by
written notice to the Trustee and the Company from the Person or Persons who
gave such Blockage Notice, (ii) by repayment in full of such Designated Senior
Indebtedness or (iii) because the default giving rise to such Blockage Notice is
no longer continuing). Notwithstanding the provisions described in the
immediately preceding sentence (but subject to the provisions contained in the
first sentence of this Section 10.03), unless the holders of such Designated
Senior Indebtedness or the Representative of such holders shall have accelerated
the maturity of such Designated Senior Indebtedness, the Company may resume
payments on the Securities after the end of such Payment Blockage Period. Not
more than one Blockage Notice may be given in any consecutive 360-day period,
irrespective of the number of defaults with respect to Designated Senior
Indebtedness during such period; provided, however, that if any Blockage Notice
                                 --------  -------
within such 360-day period is given by or on behalf of any holders of Designated
Senior Indebtedness other than the Bank Indebtedness, the Representative of the
Bank Indebtedness may give another Blockage Notice within such period; provided
                                                                       --------
further, however, that in no event may the total number of days during which any
- -------  -------
Payment Blockage Period or Periods is in effect exceed 179 days in the aggregate
during any 360 consecutive day period. For purposes of this Section 10.03, no
default or event of default that existed or was continuing on the date of the
commencement of any Payment Blockage Period with respect to the Designated
Senior Indebtedness initiating such Payment Blockage Period shall be, or be
made, the basis of the commencement of a subsequent Payment Blockage Period by
the Representative of such Designated Senior Indebtedness, whether or not within
a period of 360 consecutive days, unless such default or event of default shall
have been cured or waived for a period of not less than 90 consecutive days.

          SECTION 10.04.  Acceleration of Payment of Securities. If payment of
                          -------------------------------------
the Securities is accelerated because of an Event of Default, the Company or the
Trustee shall promptly notify the holders of the Designated Senior Indebtedness
of the Company (or their Representative) of the acceleration. If any Designated
Senior Indebtedness of the Company is outstanding, the Company may not pay the
Securities until five Business Days after such holders or the Representative of
such Designated Senior Indebtedness receive notice of such acceleration and,
thereafter, may pay the Securities only if this Article 10 otherwise permits
payment at that time.

          SECTION 10.05.  When Distribution Must Be Paid Over. If a
                          -----------------------------------
distribution is made to Securityholders that because of this Article 10 should
not have been made to them, the Securityholders who receive the distribution
shall hold it in trust for holders of Senior Indebtedness of the Company and pay
it over to them as their interests may appear.

          SECTION 10.06.  Subrogation. After all Senior Indebtedness of the
                          -----------
Company is paid in full and until the Securities are paid in full,
Securityholders shall be subrogated to the rights of holders of such Senior
Indebtedness to receive distributions applicable to Senior Indebtedness. A
distribution made under this Article 10 to holders of such Senior Indebtedness
which otherwise would have been made to Securityholders is not, as between the
Company and Securityholders, a payment by the Company on such Senior
Indebtedness.
<PAGE>

                                                                           70

          SECTION 10.07.  Relative Rights.  This Article 10 defines the relative
                          ----------------
rights of Securityholders and holders of Senior Indebtedness of the Company.
Nothing in this Indenture shall:

          (1) impair, as between the Company and Securityholders, the obligation
     of the Company, which is absolute and unconditional, to pay principal of
     and interest on and liquidated damages in respect of, the Securities in
     accordance with their terms; or

          (2) prevent the Trustee or any Securityholder from exercising its
     available remedies upon a Default, subject to the rights of holders of
     Senior Indebtedness of the Company to receive distributions otherwise
     payable to Securityholders.

          SECTION 10.08.  Subordination May Not Be Impaired by Company. No
                          ---------------------------------------------
right of any holder of Senior Indebtedness of the Company to enforce the
subordination of the Indebtedness evidenced by the Securities shall be impaired
by any act or failure to act by the Company or by its failure to comply with
this Indenture.

          SECTION 10.09.  Rights of Trustee and Paying Agent. Notwithstanding
                          -----------------------------------
Section 10.03, the Trustee or Paying Agent may continue to make payments on the
Securities and shall not be charged with knowledge of the existence of facts
that would prohibit the making of any such payments unless, not less than two
Business Days prior to the date of such payment, a Trust Officer of the Trustee
receives notice satisfactory to it that payments may not be made under this
Article 10. The Company, the Registrar, the Paying Agent, a Representative or a
holder of Senior Indebtedness of the Company may give the notice; provided,
                                                                  --------
however, that, if an issue of Senior Indebtedness of the Company has a
- -------
Representative, only the Representative may give the notice.

          The Trustee in its individual or any other capacity may hold Senior
Indebtedness of the Company with the same rights it would have if it were not
Trustee. The Registrar and the Paying Agent may do the same with like rights.
The Trustee shall be entitled to all the rights set forth in this Article 10
with respect to any Senior Indebtedness of the Company which may at any time be
held by it, to the same extent as any other holder of such Senior Indebtedness;
and nothing in Article 7 shall deprive the Trustee of any of its rights as such
holder. Nothing in this Article 10 shall apply to claims of, or payments to,
the Trustee under or pursuant to Section 7.07.

          SECTION 10.10.  Distribution or Notice to Representative. Whenever a
                          -----------------------------------------
distribution is to be made or a notice given to holders of Senior Indebtedness
of the Company, the distribution may be made and the notice given to their
Representative (if any).

          SECTION 10.11.  Article 10 Not To Prevent Events of Default or Limit
                          ----------------------------------------------------
Right To Accelerate. The failure to make a payment pursuant to the Securities
- --------------------
by reason of any provision in this Article 10 shall not be construed as
preventing the occurrence of a Default.  Nothing in this Article 10 shall have
any effect on the right of the Securityholders or the Trustee to accelerate the
maturity of the Securities.

          SECTION 10.12.  Trust Moneys Not Subordinated.  Notwithstanding
                          ------------------------------
anything contained herein to the contrary, payments from money or the proceeds
of U.S. Government
<PAGE>

                                                                          71

Obligations held in trust under Article 8 by the Trustee for the payment of
principal of and interest on the Securities shall not be subordinated to the
prior payment of any Senior Indebtedness of the Company or subject to the
restrictions set forth in this Article 10, and none of the Securityholders shall
be obligated to pay over any such amount to the Company or any holder of Senior
Indebtedness of the Company or any other creditor of the Company.

          SECTION 10.13.  Trustee Entitled To Rely. Upon any payment or
                          -------------------------
distribution pursuant to this Article 10, the Trustee and the Securityholders
shall be entitled to rely conclusively (i) upon any order or decree of a court
of competent jurisdiction in which any proceedings of the nature referred to in
Section 10.02 are pending, (ii) upon a certificate of the liquidating trustee or
agent or other Person making such payment or distribution to the Trustee or to
the Securityholders or (iii) upon the Representatives for the holders of Senior
Indebtedness of the Company for the purpose of ascertaining the Persons entitled
to participate in such payment or distribution, the holders of such Senior
Indebtedness and other Indebtedness of the Company, the amount thereof or
payable thereon, the amount or amounts paid or distributed thereon and all other
facts pertinent thereto or to this Article 10. In the event that the Trustee
determines, in good faith, that evidence is required with respect to the right
of any Person as a holder of Senior Indebtedness of the Company to participate
in any payment or distribution pursuant to this Article 10, the Trustee may
request such Person to furnish evidence to the reasonable satisfaction of the
Trustee as to the amount of such Senior Indebtedness held by such Person, the
extent to which such Person is entitled to participate in such payment or
distribution and other facts pertinent to the rights of such Person under this
Article 10, and, if such evidence is not furnished, the Trustee may defer any
payment to such Person pending judicial determination as to the right of such
Person to receive such payment. The provisions of Sections 7.01 and 7.02 shall
be applicable to all actions or omissions of actions by the Trustee pursuant to
this Article 10.

          SECTION 10.14.  Trustee To Effectuate Subordination.  Each
                          ------------------------------------
Securityholder by accepting a Security authorizes and directs the Trustee on his
behalf to take such action as may be necessary or appropriate to acknowledge or
effectuate the subordination between the Securityholders and the holders of
Senior Indebtedness of the Company as provided in this Article 10 and appoints
the Trustee as attorney-in-fact for any and all such purposes.

          SECTION 10.15.  Trustee Not Fiduciary for Holders of Senior
                          -------------------------------------------
Indebtedness. The Trustee shall not be deemed to owe any fiduciary duty to the
- -------------
holders of Senior Indebtedness of the Company and shall not be liable to any
such holders if it shall mistakenly pay over or distribute to Securityholders or
the Company or any other Person, money or assets to which any holders of Senior
Indebtedness of the Company shall be entitled by virtue of this Article 10 or
otherwise.

          SECTION 10.16.  Reliance by Holders of Senior Indebtedness on
                          ---------------------------------------------
Subordination Provisions. Each Securityholder by accepting a Security
- -------------------------
acknowledges and agrees that the foregoing subordination provisions are, and are
intended to be, an inducement and a consideration to each holder of any Senior
Indebtedness of the Company, whether such Senior Indebtedness was created or
acquired before or after the issuance of the Securities, to acquire and continue
to hold, or to continue to hold, such Senior Indebtedness and such holder of
such Senior Indebtedness shall be deemed conclusively to have relied on such
subordination provisions in acquiring and continuing to hold, or in continuing
to hold, such Senior Indebtedness.
<PAGE>

                                                                              72

          SECTION 10.17.  Trustee's Compensation Not Prejudiced. Nothing in
                          --------------------------------------
this Article shall apply to amounts due to the Trustee pursuant to other
sections of this Indenture.

          SECTION 10.18.  Defeasance. The terms of this Article 10 shall not
                          -----------
apply to payments from money or the proceeds of U.S. Government Obligations held
in trust by the Trustee for the payment of principal of and interest on the
Securities pursuant to the provisions described in Section 8.03.


                                  ARTICLE 11

                             Subsidiary Guarantees
                             ---------------------

          SECTION 11.01.  Subsidiary Guarantees. Each Subsidiary Guarantor
                          ----------------------
hereby jointly and severally irrevocably and unconditionally guarantees, as a
primary obligor and not merely as a surety, to each Holder and to the Trustee
and its successors and assigns (a) the full and punctual payment when due,
whether at Stated Maturity, by acceleration, by redemption or otherwise, of all
obligations of the Company under this Indenture (including obligations to the
Trustee) and the Securities, whether for payment of principal of, interest on or
liquidated damages in respect of, the Securities and all other monetary
obligations of the Company under this Indenture and the Securities and (b) the
full and punctual performance within applicable grace periods of all other
obligations of the Company whether for expenses, indemnification or otherwise
under this Indenture and the Securities (all the foregoing being hereinafter
collectively called the "Guaranteed Obligations"). Each Subsidiary Guarantor
further agrees that the Guaranteed Obligations may be extended or renewed, in
whole or in part, without notice or further assent from each such Subsidiary
Guarantor, and that each such Subsidiary Guarantor shall remain bound under this
Article 11 notwithstanding any extension or renewal of any Guaranteed
Obligation.

          Each Subsidiary Guarantor waives presentation to, demand of, payment
from and protest to the Company of any of the Guaranteed Obligations and also
waives notice of protest for nonpayment. Each Subsidiary Guarantor waives
notice of any default under the Securities or the Guaranteed Obligations. The
obligations of each Subsidiary Guarantor hereunder shall not be affected by (a)
the failure of any Holder or the Trustee to assert any claim or demand or to
enforce any right or remedy against the Company or any other Person under this
Indenture, the Securities or any other agreement or otherwise; (b) any extension
or renewal of any thereof; (c) any rescission, waiver, amendment or modification
of any of the terms or provisions of this Indenture, the Securities or any other
agreement; (d) the release of any security held by any Holder or the Trustee for
the Guaranteed Obligations or any of them; (e) the failure of any Holder or
Trustee to exercise any right or remedy against any other guarantor of the
Guaranteed Obligations; or (f) any change in the ownership of such Subsidiary
Guarantor, except as provided in Section 11.02(b).

          Each Subsidiary Guarantor hereby waives any right to which it may be
entitled to have its obligations hereunder divided among the Subsidiary
Guarantors, such that such Subsidiary Guarantor's obligations would be less than
the full amount claimed. Each Subsidiary
<PAGE>

                                                                              73

Guarantor hereby waives any right to which it may be entitled to have the assets
of the Company first be used and depleted as payment of the Company's or such
Subsidiary Guarantor's obligations hereunder prior to any amounts being claimed
from or paid by such Subsidiary Guarantor hereunder. Each Subsidiary Guarantor
hereby waives any right to which it may be entitled to require that the Company
be sued prior to an action being initiated against such Subsidiary Guarantor.

          Each Subsidiary Guarantor further agrees that its Subsidiary Guarantee
herein constitutes a guarantee of payment, performance and compliance when due
(and not a guarantee of collection) and waives any right to require that any
resort be had by any Holder or the Trustee to any security held for payment of
the Guaranteed Obligations.

          The Subsidiary Guarantee of each Subsidiary Guarantor is, to the
extent and in the manner set forth in Article 12, subordinated and subject in
right of payment to the prior payment in full of the principal of and premium,
if any, and interest on all Senior Indebtedness of the relevant Subsidiary
Guarantor and is made subject to such provisions of this Indenture.

          Except as expressly set forth in Sections 8.01(b), 11.02 and 11.06,
the obligations of each Subsidiary Guarantor hereunder shall not be subject to
any reduction, limitation, impairment or termination for any reason, including
any claim of waiver, release, surrender, alteration or compromise, and shall not
be subject to any defense of setoff, counterclaim, recoupment or termination
whatsoever or by reason of the invalidity, illegality or unenforceability of the
Guaranteed Obligations or otherwise.  Without limiting the generality of the
foregoing, the obligations of each Subsidiary Guarantor herein shall not be
discharged or impaired or otherwise affected by the failure of any Holder or the
Trustee to assert any claim or demand or to enforce any remedy under this
Indenture, the Securities or any other agreement, by any waiver or modification
of any thereof, by any default, failure or delay, wilful or otherwise, in the
performance of the obligations, or by any other act or thing or omission or
delay to do any other act or thing which may or might in any manner or to any
extent vary the risk of any Subsidiary Guarantor or would otherwise operate as a
discharge of any Subsidiary Guarantor as a matter of law or equity.

          Each Subsidiary Guarantor agrees that its Subsidiary Guarantee shall
remain in full force and effect until payment in full of all the Guaranteed
Obligations (except as otherwise provided in Section 8.01(b)).  Each Subsidiary
Guarantor further agrees that its Subsidiary Guarantee herein shall continue to
be effective or be reinstated, as the case may be, if at any time payment, or
any part thereof, of principal of or interest on any Guaranteed Obligation is
rescinded or must otherwise be restored by any Holder or the Trustee upon the
bankruptcy or reorganization of the Company or otherwise.

          In furtherance of the foregoing and not in limitation of any other
right which any Holder or the Trustee has at law or in equity against any
Subsidiary Guarantor by virtue hereof, upon the failure of the Company to pay
the principal of or interest on any Guaranteed Obligation when and as the same
shall become due, whether at maturity, by acceleration, by redemption or
otherwise, or to perform or comply with any other Guaranteed Obligation, each
Subsidiary Guarantor hereby promises to and shall, upon receipt of written
demand by the Trustee, forthwith pay, or cause to be paid, in cash, to the
Holders or the Trustee an amount equal to the sum of
<PAGE>

                                                                              74

(i) the unpaid principal amount of such Guaranteed Obligations, (ii) accrued and
unpaid interest on such Guaranteed Obligations (but only to the extent not
prohibited by law) and (iii) all other monetary obligations of the Company to
the Holders and the Trustee.

          Each Subsidiary Guarantor agrees that it shall not be entitled to any
right of subrogation in relation to the Holders in respect of any Guaranteed
Obligations guaranteed hereby until payment in full of all Guaranteed
Obligations and all obligations to which the Guaranteed Obligations are
subordinated as provided in Article 12.  Each Subsidiary Guarantor further
agrees that, as between it, on the one hand, and the Holders and the Trustee, on
the other hand, (x) the maturity of the Guaranteed Obligations guaranteed hereby
may be accelerated as provided in Article 6 for the purposes of any Subsidiary
Guarantee herein, notwithstanding any stay, injunction or other prohibition
preventing such acceleration in respect of the Guaranteed Obligations guaranteed
hereby, and (y) in the event of any declaration of acceleration of such
Guaranteed Obligations as provided in Article 6, such Guaranteed Obligations
(whether or not due and payable) shall forthwith become due and payable by such
Subsidiary Guarantor for the purposes of this Section 11.01.

          Each Subsidiary Guarantor also agrees to pay any and all costs and
expenses (including reasonable attorneys' fees and expenses) incurred by the
Trustee or any Holder in enforcing any rights under this Section 11.01.

          Upon request of the Trustee, each Subsidiary Guarantor shall execute
and deliver such further instruments and do such further acts as may be
reasonably necessary or proper to carry out more effectively the purpose of this
Indenture.

          SECTION 11.02.  Limitation on Liability.  (a)  Any term or provision
                          ------------------------
of this Indenture to the contrary notwithstanding, the maximum, aggregate amount
of the Guaranteed Obligations guaranteed hereunder by any Subsidiary Guarantor
shall not exceed the maximum amount that can be hereby guaranteed without
rendering this Indenture, as it relates to such Subsidiary Guarantor, voidable
under applicable law relating to fraudulent conveyance or fraudulent transfer or
similar laws affecting the rights of creditors generally.

          (b)  A Subsidiary Guarantee as to any Subsidiary Guarantor shall
terminate and be of no further force or effect and such Subsidiary Guarantor
shall be deemed to be released from all obligations under this Article 11 upon
(i) the merger or consolidation of such Subsidiary Guarantor with or into any
Person other than the Company or a Subsidiary or Affiliate of the Company where
such Subsidiary Guarantor is not the surviving entity of such consolidation or
merger or (ii) the sale by the Company or any Subsidiary of the Company (or any
pledgee of the Company) of the Capital Stock of such Subsidiary Guarantor,
where, after such sale, such Subsidiary Guarantor is no longer a Subsidiary of
the Company; provided, however, that each such merger, consolidation or sale
             --------  -------
(or, in the case of a sale by such a pledgee, the disposition of the proceeds of
such sale) shall comply with Section 4.06 and Section 5.01(b).  At the written
request of the Company, the Trustee shall execute and deliver an appropriate
instrument evidencing such release.

          SECTION 11.03.  Successors and Assigns.  This Article 11 shall be
                          -----------------------
binding upon each Subsidiary Guarantor and its successors and assigns and shall
inure to the benefit of
<PAGE>

                                                                              75

the successors and assigns of the Trustee and the Holders and, in the event of
any transfer or assignment of rights by any Holder or the Trustee, the rights
and privileges conferred upon that party in this Indenture and in the Securities
shall automatically extend to and be vested in such transferee or assignee, all
subject to the terms and conditions of this Indenture.

          SECTION 11.04.  No Waiver.  Neither a failure nor a delay on the part
                          ----------
of either the Trustee or the Holders in exercising any right, power or privilege
under this Article 11 shall operate as a waiver thereof, nor shall a single or
partial exercise thereof preclude any other or further exercise of any right,
power or privilege.  The rights, remedies and benefits of the Trustee and the
Holders herein expressly specified are cumulative and not exclusive of any other
rights, remedies or benefits which either may have under this Article 11 at law,
in equity, by statute or otherwise.

          SECTION 11.05.  Modification.  No modification, amendment or waiver of
                          -------------
any provision of this Article 11, nor the consent to any departure by any
Subsidiary Guarantor therefrom, shall in any event be effective unless the same
shall be in writing and signed by the Trustee, and then such waiver or consent
shall be effective only in the specific instance and for the purpose for which
given.  No notice to or demand on any Subsidiary Guarantor in any case shall
entitle such Subsidiary Guarantor to any other or further notice or demand in
the same, similar or other circumstances.

          SECTION 11.06.  Execution of Supplemental Indenture for Future
                          ----------------------------------------------
Subsidiary Guarantors.  Each Subsidiary which is required to become a Subsidiary
- ----------------------
Guarantor pursuant to Section 4.11 shall promptly execute and deliver to the
Trustee a supplemental indenture in the form of Exhibit C hereto pursuant to
which such Subsidiary shall become a Subsidiary Guarantor under this Article 11
and shall guarantee the Guaranteed Obligations.  Concurrently with the execution
and delivery of such supplemental indenture, the Company shall deliver to the
Trustee an Opinion of Counsel and an Officers' Certificate to the effect that
such supplemental indenture has been duly authorized, executed and delivered by
such Subsidiary and that, subject to the application of bankruptcy, insolvency,
moratorium, fraudulent conveyance or transfer and other similar laws relating to
creditors' rights generally and to the principles of equity, whether considered
in a proceeding at law or in equity, the Subsidiary Guarantee of such Subsidiary
Guarantor is a legal, valid and binding obligation of such Subsidiary Guarantor,
enforceable against such Subsidiary Guarantor in accordance with its terms.
<PAGE>

                                                                              76

                                  ARTICLE 12

                  Subordination of the Subsidiary Guarantees
                  ------------------------------------------

          SECTION 12.01.  Agreement To Subordinate.  Each Subsidiary Guarantor
                          -------------------------
agrees, and each Securityholder by accepting a Security agrees, that the
obligations of a Subsidiary Guarantor hereunder are subordinated in right of
payment, to the extent and in the manner provided in this Article 12, to the
prior payment in full of all Senior Indebtedness of such Subsidiary Guarantor
and that the subordination is for the benefit of and enforceable by the holders
of such Senior Indebtedness of such Subsidiary Guarantor.  The obligations
hereunder with respect to a Subsidiary Guarantor shall in all respects rank pari
                                                                            ----
passu with all other Senior Subordinated Indebtedness of such Subsidiary
- -----
Guarantor and shall rank senior to all existing and future Subordinated
Obligations of such Subsidiary Guarantor; and only Indebtedness of such
Subsidiary Guarantor that is Senior Indebtedness of such Subsidiary Guarantor
shall rank senior to the obligations of such Subsidiary Guarantor in accordance
with the provisions set forth herein.

          SECTION 12.02.  Liquidation, Dissolution, Bankruptcy.  Upon any
                          -------------------------------------
payment or distribution of the assets of a Subsidiary Guarantor to creditors
upon a total or partial liquidation or a total or partial dissolution of such
Subsidiary Guarantor or in a bankruptcy, reorganization, insolvency,
receivership or similar proceeding relating to such Subsidiary Guarantor and its
properties:

          (1) holders of Senior Indebtedness of such Subsidiary Guarantor shall
     be entitled to receive payment in full of such Senior Indebtedness before
     Securityholders shall be entitled to receive any payment pursuant to any
     Guaranteed Obligations from such Subsidiary Guarantor; and

          (2) until the Senior Indebtedness of such Subsidiary Guarantor is paid
     in full, any payment or distribution to which Securityholders would be
     entitled but for this Article 12 shall be made to holders of such Senior
     Indebtedness as their respective interests may appear, except that
     Securityholders may receive shares of stock and any debt securities that
     are subordinated to such Senior Indebtedness to at least the same extent as
     the Guarantees.

          SECTION 12.03.  Default on Designated Senior Indebtedness of a
                          ----------------------------------------------
Subsidiary Guarantor.  A Subsidiary Guarantor may not make any payment pursuant
- ---------------------
to any of the Guaranteed Obligations or repurchase, redeem or otherwise retire
any Securities (collectively, "pay its Guarantee") if (i) any Designated Senior
Indebtedness of such Subsidiary Guarantor is not paid when due or (ii) any other
default on Designated Senior Indebtedness of such Subsidiary Guarantor occurs
and the maturity of such Designated Senior Indebtedness is accelerated in
accordance with its terms unless, in either case, (x) the default has been cured
or waived and any such acceleration has been rescinded or (y) such Designated
Senior Indebtedness has been paid in full; provided, however, that such
                                           --------  -------
Subsidiary Guarantor may pay its Guarantee without regard to the foregoing if
such Subsidiary Guarantor and the Trustee receive written notice approving such
payment from the Representative of the holders of such Designated Senior
Indebtedness with respect to which either of the events in clause (i) or (ii) of
this sentence has occurred and is
<PAGE>

                                                                              77

continuing. During the continuance of any default (other than a default
described in clause (i) or (ii) of the preceding sentence) with respect to any
Designated Senior Indebtedness of a Subsidiary Guarantor pursuant to which the
maturity thereof may be accelerated immediately without further notice (except
such notice as may be required to effect such acceleration) or the expiration of
any applicable grace periods, such Subsidiary Guarantor may not pay its
Guarantee for a Payment Blockage Period commencing upon the receipt by the
Trustee (with a copy to such Subsidiary Guarantor and the Company) of a Blockage
Notice of such default from the Representative of the holders of the Designated
Senior Indebtedness of such Subsidiary Guarantor specifying an election to
effect a Payment Blockage Period and ending 179 days thereafter (or earlier if
such Payment Blockage Period is terminated (i) by written notice to the Trustee
(with a copy to such Subsidiary Guarantor and the Company) from the Person or
Persons who gave such Blockage Notice, (ii) because such Designated Senior
Indebtedness has been repaid in full or (iii) because the default giving rise to
such Blockage Notice is no longer continuing). Notwithstanding the provisions
described in the immediately preceding sentence (but subject to the provisions
contained in the first sentence of this Section 12.03), unless the holders of
such Designated Senior Indebtedness or the Representative of such holders shall
have accelerated the maturity of such Designated Senior Indebtedness, such
Subsidiary Guarantor may resume paying its Guarantee after such Payment Blockage
Period, including any missed payments. Not more than one Blockage Notice may be
given with respect to a Subsidiary Guarantor in any consecutive 360-day period,
irrespective of the number of defaults with respect to Designated Senior
Indebtedness of such Subsidiary Guarantor during such period.

          SECTION 12.04.  Demand for Payment.  If payment of the Securities is
                          -------------------
accelerated because of an Event of Default and a demand for payment is made on a
Subsidiary Guarantor pursuant to Article 11, the Trustee shall promptly notify
the holders of the Designated Senior Indebtedness of such Subsidiary Guarantor
(or the Representative of such holders) of such demand.  If any Designated
Senior Indebtedness of such Subsidiary Guarantor is outstanding, such Subsidiary
Guarantor may not pay its Guarantee until five Business Days after such holders
or the Representative of the holders of the Designated Senior Indebtedness of
such Subsidiary Guarantor receive notice of such demand and, thereafter, may pay
its Guarantee only if this Article 12 otherwise permits payment at that time.

          SECTION 12.05.  When Distribution Must Be Paid Over.  If a payment or
                          ------------------------------------
distribution is made to Securityholders that because of this Article 12 should
not have been made to them, the Securityholders who receive the payment or
distribution shall hold such payment or distribution in trust for holders of the
Senior Indebtedness of the relevant Subsidiary Guarantor and pay it over to them
as their respective interests may appear.

          SECTION 12.06.  Subrogation.  After all Senior Indebtedness of a
                          ------------
Subsidiary Guarantor is paid in full and until the Securities are paid in full
in cash, Securityholders shall be subrogated to the rights of holders of Senior
Indebtedness of such Subsidiary Guarantor to receive distributions applicable to
Designated Senior Indebtedness of such Subsidiary Guarantor.  A distribution
made under this Article 12 to holders of Senior Indebtedness of such Subsidiary
Guarantor which otherwise would have been made to Securityholders is not, as
between such Subsidiary Guarantor and Securityholders, a payment by such
Subsidiary Guarantor on Senior Indebtedness of such Subsidiary Guarantor.
<PAGE>

                                                                              78

          SECTION 12.07.  Relative Rights.  This Article 12 defines the relative
                          ----------------
rights of Securityholders and holders of Senior Indebtedness of a Subsidiary
Guarantor.  Nothing in this Indenture shall:

          (1) impair, as between a Subsidiary Guarantor and Securityholders, the
     obligation of a Subsidiary Guarantor which is absolute and unconditional,
     to make payments with respect to the Guaranteed Obligations to the extent
     set forth in Article 11; or

          (2) prevent the Trustee or any Securityholder from exercising its
     available remedies upon a default by a Subsidiary Guarantor under its
     obligations with respect to the Guaranteed Obligations, subject to the
     rights of holders of Senior Indebtedness of such Subsidiary Guarantor to
     receive distributions otherwise payable to Securityholders.

          SECTION 12.08.  Subordination May Not Be Impaired by a Subsidiary
                          -------------------------------------------------
Guarantor.  No right of any holder of Senior Indebtedness of a Subsidiary
- ----------
Guarantor to enforce the subordination of the obligations of such Subsidiary
Guarantor hereunder shall be impaired by any act or failure to act by such
Subsidiary Guarantor or by its failure to comply with this Indenture.

          SECTION 12.09.  Rights of Trustee and Paying Agent.  Notwithstanding
                          -----------------------------------
Section 12.03, the Trustee or the Paying Agent may continue to make payments on
the Securities and shall not be charged with knowledge of the existence of facts
that would prohibit the making of any such payments unless, not less than two
Business Days prior to the date of such payment, a Trust Officer of the Trustee
receives notice satisfactory to it that payments may not be made under this
Article 12.  A Subsidiary Guarantor, the Registrar or co-registrar, the Paying
Agent, a Representative or a holder of Senior Indebtedness of a Subsidiary
Guarantor may give the notice; provided, however, that if an issue of Senior
                               --------  -------
Indebtedness of a Subsidiary Guarantor has a Representative, only the
Representative may give the notice.

          The Trustee in its individual or any other capacity may hold Senior
Indebtedness of a Subsidiary Guarantor with the same rights it would have if it
were not Trustee.  The Registrar and co-registrar and the Paying Agent may do
the same with like rights.  The Trustee shall be entitled to all the rights set
forth in this Article 12 with respect to any Senior Indebtedness of a Subsidiary
Guarantor which may at any time be held by it, to the same extent as any other
holder of Senior Indebtedness of such Subsidiary Guarantor; and nothing in
Article 7 shall deprive the Trustee of any of its rights as such holder.
Nothing in this Article 12 shall apply to claims of, or payments to, the Trustee
under or pursuant to Section 7.07.

          SECTION 12.10.  Distribution or Notice to Representative.  Whenever a
                          -----------------------------------------
distribution is to be made or a notice given to holders of Senior Indebtedness
of a Subsidiary Guarantor, the distribution may be made and the notice given to
their Representative (if any).

          SECTION 12.11.  Article 12 Not To Prevent Events of Default or Limit
                          ----------------------------------------------------
Right To Accelerate.  The failure of a Subsidiary Guarantor to make a payment on
- --------------------
any of its obligations by reason of any provision in this Article 12 shall not
be construed as preventing the occurrence of a default by such Subsidiary
Guarantor under such obligations.  Nothing in this
<PAGE>

                                                                              79

Article 12 shall have any effect on the right of the Securityholders or the
Trustee to make a demand for payment on a Subsidiary Guarantor pursuant to
Article 11.

          SECTION 12.12.  Trustee Entitled To Rely.  Upon any payment or
                          -------------------------
distribution pursuant to this Article 12, the Trustee and the Securityholders
shall be entitled to rely conclusively (i) upon any order or decree of a court
of competent jurisdiction in which any proceedings of the nature referred to in
Section 12.02 are pending, (ii) upon a certificate of the liquidating trustee or
agent or other Person making such payment or distribution to the Trustee or to
the Securityholders or (iii) upon the Representatives for the holders of Senior
Indebtedness of a Subsidiary Guarantor for the purpose of ascertaining the
Persons entitled to participate in such payment or distribution, the holders of
the Senior Indebtedness of a Subsidiary Guarantor and other Indebtedness of a
Subsidiary Guarantor, the amount thereof or payable thereon, the amount or
amounts paid or distributed thereon and all other facts pertinent thereto or to
this Article 12.  In the event that the Trustee determines, in good faith, that
evidence is required with respect to the right of any Person as a holder of
Senior Indebtedness of a Subsidiary Guarantor to participate in any payment or
distribution pursuant to this Article 12, the Trustee may request such Person to
furnish evidence to the reasonable satisfaction of the Trustee as to the amount
of Senior Indebtedness of such Subsidiary Guarantor held by such Person, the
extent to which such Person is entitled to participate in such payment or
distribution and other facts pertinent to the rights of such Person under this
Article 12, and, if such evidence is not furnished, the Trustee may defer any
payment to such Person pending judicial determination as to the right of such
Person to receive such payment.  The provisions of Sections 7.01 and 7.02 shall
be applicable to all actions or omissions of actions by the Trustee pursuant to
this Article 12.

          SECTION 12.13.  Trustee To Effectuate Subordination.  Each
                          ------------------------------------
Securityholder by accepting a Security authorizes and directs the Trustee on his
or her behalf to take such action as may be necessary or appropriate to
acknowledge or effectuate the subordination between the Securityholders and the
holders of Senior Indebtedness of each of the Subsidiary Guarantors as provided
in this Article 12 and appoints the Trustee as attorney-in-fact for any and all
such purposes.

          SECTION 12.14.  Trustee Not Fiduciary for Holders of Senior
                          -------------------------------------------
Indebtedness of a Subsidiary Guarantor.  The Trustee shall not be deemed to owe
- ---------------------------------------
any fiduciary duty to the holders of Senior Indebtedness of a Subsidiary
Guarantor and shall not be liable to any such holders if it shall mistakenly pay
over or distribute to Securityholders or the relevant Subsidiary Guarantor or
any other Person, money or assets to which any holders of Senior Indebtedness of
such Subsidiary Guarantor shall be entitled by virtue of this Article 12 or
otherwise.

          SECTION 12.15.  Reliance by Holders of Senior Indebtedness of a
                          -----------------------------------------------
Subsidiary Guarantor on Subordination Provisions.  Each Securityholder by
- -------------------------------------------------
accepting a Security acknowledges and agrees that the foregoing subordination
provisions are, and are intended to be, an inducement and a consideration to
each holder of any Senior Indebtedness of a Subsidiary Guarantor, whether such
Senior Indebtedness was created or acquired before or after the issuance of the
Securities, to acquire and continue to hold, or to continue to hold, such Senior
Indebtedness and such holder of Senior Indebtedness shall be deemed conclusively
to have relied on such subordination provisions in acquiring and continuing to
hold, or in continuing to hold, such Senior Indebtedness.
<PAGE>

                                                                              80

          SECTION 12.16.  Defeasance.  The terms of this Article 12 shall not
                          -----------
apply to payments from money or the proceeds of U.S. Government Obligations held
in trust by the Trustee for the payment of principal of and interest on the
Securities pursuant to the provisions described in Section 8.03.


                                  ARTICLE 13

                                 Miscellaneous
                                 -------------

          SECTION 13.01.  Trust Indenture Act Controls.  If any provision of
                          -----------------------------
this Indenture limits, qualifies or conflicts with another provision which is
required to be included in this Indenture by the TIA, the required provision
shall control.

          SECTION 13.02.  Notices.  Any notice or communication shall be in
                          --------
writing and delivered in person or mailed by first-class mail addressed as
follows:

                    if to the Company:

                    TeleCorp PCS, Inc.
                    1010 N. Glebe Road, Suite 800
                    Arlington, VA  22201
                    (703) 236-1100

                    Attention of:  Thomas H. Sullivan, Esq.


                    if to the Trustee:

                    Bankers Trust Company
                    Corporate Trust  and Agency Services
                    Four Albany Street
                    New York, NY 10006
                    (212) 250-6657

                    Attention of:  Corporate Market Services

          The Company or the Trustee by notice to the other may designate
additional or different addresses for subsequent notices or communications.

          Any notice or communication mailed to a Securityholder shall be mailed
to the Securityholder at the Securityholder's address as it appears on the
registration books of the Registrar and shall be sufficiently given if so mailed
within the time prescribed.

          Failure to mail a notice or communication to a Securityholder or any
defect in it shall not affect its sufficiency with respect to other
Securityholders.  If a notice or
<PAGE>

                                                                              81

communication is mailed in the manner provided above, it is duly given, whether
or not the addressee receives it.

          SECTION 13.03.  Communication by Holders with Other Holders.
                          --------------------------------------------
Securityholders may communicate pursuant to Section 312(b) of the TIA with other
Securityholders with respect to their rights under this Indenture or the
Securities.  The Company, the Trustee, the Registrar and anyone else shall have
the protection of Section 312(c) of the TIA.

          SECTION 13.04.  Certificate and Opinion as to Conditions Precedent.
                          ---------------------------------------------------
Upon any request or application by the Company to the Trustee to take or refrain
from taking any action under this Indenture, the Company shall furnish to the
Trustee:

          (1) an Officers' Certificate in form and substance reasonably
     satisfactory to the Trustee stating that, in the opinion of the signers,
     all conditions precedent, if any, provided for in this Indenture relating
     to the proposed action have been complied with; and

          (2) an Opinion of Counsel in form and substance reasonably
     satisfactory to the Trustee stating that, in the opinion of such counsel,
     all such conditions precedent have been complied with.

          SECTION 13.05.  Statements Required in Certificate or Opinion.  Each
                          ----------------------------------------------
certificate or opinion with respect to compliance with a covenant or condition
provided for in this Indenture shall include:

          (1) a statement that the individual making such certificate or opinion
     has read such covenant or condition;

          (2) a brief statement as to the nature and scope of the examination or
     investigation upon which the statements or opinions contained in such
     certificate or opinion are based;

          (3) a statement that, in the opinion of such individual, he has made
     such examination or investigation as is necessary to enable him to express
     an informed opinion as to whether or not such covenant or condition has
     been complied with; and

          (4) a statement as to whether or not, in the opinion of such
     individual, such covenant or condition has been complied with.

          SECTION 13.06.  When Securities Disregarded.  In determining whether
                          ----------------------------
the Holders of the required principal amount at maturity of Securities have
concurred in any direction, waiver or consent, Securities owned by the Company,
any Subsidiary Guarantor or by any Person directly or indirectly controlling or
controlled by or under direct or indirect common control with the Company or any
Subsidiary Guarantor shall be disregarded and deemed not to be outstanding,
except that, for the purpose of determining whether the Trustee shall be
protected in relying on any such direction, waiver or consent, only Securities
which the Trustee knows are
<PAGE>

                                                                              82

so owned shall be so disregarded. Subject to the foregoing, only Securities
outstanding at the time shall be considered in any such determination.
<PAGE>

                                                                              83

          SECTION 13.07.  Rules by Trustee, Paying Agent and Registrar.  The
                          ---------------------------------------------
Trustee may make reasonable rules for action by or a meeting of Securityholders.
The Registrar and the Paying Agent may make reasonable rules for their
functions.

          SECTION 13.08.  Legal Holidays.  If a payment date is a Legal Holiday,
                          ---------------
payment shall be made on the next succeeding day that is not a Legal Holiday,
and no interest shall accrue for the intervening period.  If a regular record
date is a Legal Holiday, the record date shall not be affected.

          SECTION 13.09.  GOVERNING LAW.  THIS INDENTURE AND THE SECURITIES
                          --------------
SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF
NEW YORK BUT WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW
TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE
REQUIRED THEREBY.

          SECTION 13.10.  No Recourse Against Others.  A director, officer,
                          ---------------------------
employee or stockholder, as such, of the Company shall not have any liability
for any obligations of the Company under the Securities or this Indenture or for
any claim based on, in respect of or by reason of such obligations or their
creation.  By accepting a Security, each Securityholder shall waive and release
all such liability.  The waiver and release shall be part of the consideration
for the issue of the Securities.

          SECTION 13.11.  Successors.  All agreements of the Company and each
                          -----------
Subsidiary Guarantor in this Indenture and the Securities shall bind its
successors.  All agreements of the Trustee in this Indenture shall bind its
successors.

          SECTION 13.12.  Multiple Originals.  The parties may sign any number
                          -------------------
of copies of this Indenture.  Each signed copy shall be an original, but all of
them together represent the same agreement.  One signed copy is enough to prove
this Indenture.

          SECTION 13.13.  Table of Contents; Headings.  The table of contents,
                          ----------------------------
cross-reference sheet and headings of the Articles and Sections of this
Indenture have been inserted for convenience of reference only, are not intended
to be considered a part hereof and shall not modify or restrict any of the terms
or provisions hereof.
<PAGE>

          IN WITNESS WHEREOF, the parties have caused this Indenture to be duly
executed as of the date first written above.


                              TELECORP PCS, INC.,


                              by /s/ Thomas H. Sullivan
                                 ------------------------------------------
                                 Name:  Thomas H. Sullivan
                                 Title: Executive Vice President
                                       and Chief Financial Officer


                              TELECORP COMMUNICATIONS, INC.,


                              by /s/ Thomas H. Sullivan
                                 ------------------------------------------
                                 Name:  Thomas H. Sullivan
                                 Title: President, Treasurer and Secretary


                              BANKERS TRUST COMPANY, as Trustee,


                              by /s/ Marc Parilla
                                 ------------------------------------------
                                 Name:  Marc Parilla
                                 Title: Assistant Vice President
<PAGE>

                                                                      APPENDIX A


                  PROVISIONS RELATING TO /INITIAL SECURITIES,
                  -------------------------------------------
                          PRIVATE EXCHANGE SECURITIES
                          ---------------------------
                            AND EXCHANGE SECURITIES
                            -----------------------

     1.   Definitions
          -----------

     1.1  Definitions
          -----------

     For the purposes of this Appendix A the following terms will have the
meanings indicated below:

          "Applicable Procedures" means, with respect to any transfer or
transaction involving a Regulation S Global Security or beneficial interest
therein, the rules and procedures of the Depositary for such Global Security,
Euroclear and Cedel, in each case to the extent applicable to such transaction
and as in effect from time to time.

          "Cedel" means Cedel Bank, S.A., or any successor securities clearing
agency.

          "Definitive Security" means a certificated Initial Security or
Exchange Security (bearing the Restricted Securities Legend if the transfer of
such Security is restricted by applicable law) that does not include the Global
Securities Legend.

          "Depositary" means The Depository Trust Company, its nominees and
their respective successors.

          "Euroclear" means the Euroclear Clearance System or any successor
securities clearing agency.

          "Global Securities Legend" means the legend set forth under that
caption in Exhibit A to this Indenture.

          "IAI" means an institutional "accredited investor" as described in
Rule 501(a)(1), (2), (3) or (7) under the Securities Act.

          "Initial Purchasers" means Chase Securities Inc., BT Alex. Brown
Incorporated and Lehman Brothers Inc.

          "Private Exchange" means an offer by the Company, pursuant to the
Registration Agreement, to issue and deliver to certain purchasers, in exchange
for the Initial Securities held by such purchasers as part of their initial
distribution, a like aggregate principal amount at maturity of Private Exchange
Securities.

          "Private Exchange Securities" means the Securities of the Company
issued in exchange for Initial Securities pursuant to this Indenture in
connection with the Private Exchange pursuant to the Registration Agreement.
<PAGE>

          "Purchase Agreement" means the Purchase Agreement dated April 20,
1999, among the Company, the Subsidiary Guarantor and the Initial Purchasers.

          "QIB" means a "qualified institutional buyer" as defined in Rule 144A.

          "Registered Exchange Offer" means the offer by the Company, pursuant
to the Registration Agreement, to certain Holders of Initial Securities, to
issue and deliver to such Holders, in exchange for their Initial Securities, a
like aggregate principal amount at maturity of Exchange Securities registered
under the Securities Act.

          "Registration Agreement" means the Exchange and Registration Rights
Agreement dated April 23, 1999 , among the Company, the Subsidiary Guarantor and
the Initial Purchasers.

          "Regulation S" means Regulation S under the Securities Act.

          "Regulation S Securities" means all Initial Securities offered and
sold outside the United States in reliance on Regulation S.

          "Restricted Period," with respect to any Securities, means the period
of 40 consecutive days beginning on and including the later of (i) the day on
which such Securities are first offered to persons other than distributors (as
defined in Regulation S under the Securities Act) in reliance on Regulation S
and (ii) the Issue Date with respect to such Securities.

          "Restricted Securities Legend" means the legend set forth in Section
2.3(e)(i) herein.

          "Rule 501" means Rule 501(a)(1), (2), (3) or (7) under the Securities
Act.

          "Rule 144A" means Rule 144A under the Securities Act.

          "Rule 144A Securities" means all Initial Securities offered and sold
to QIBs in reliance on Rule 144A.

          "Securities Act" means the Securities Act of 1933, as amended.

          "Securities Custodian" means the custodian with respect to a Global
Security (as appointed by the Depositary) or any successor person thereto, who
will initially be the Trustee.

          "Shelf Registration Statement" means a registration statement filed by
the Company in connection with the offer and sale of Initial Securities pursuant
to the Registration Agreement.

          "Transfer Restricted Securities" means Definitive Securities and any
other Securities that bear or are required to bear the Restricted Securities
Legend.
<PAGE>

                                                                               3

     1.2  Other Definitions
          -----------------

     Term:                                         Defined in Section:
     ----                                          ------------------

"Agent Members".........................................2.1(b)
"IAI Global Security"...................................2.1(a)
"Global Security".......................................2.1(a)
"Regulation S Global Security"..........................2.1(a)
"Rule 144A Global Security".............................2.1(a)


     2.   The Securities
          --------------

     2.1  Form and Dating
          ---------------

               The Initial Securities issued on the date hereof will be (i)
offered and sold by the Company pursuant to the Purchase Agreement and (ii)
resold, initially only to (A) QIBs in reliance on Rule 144A and (B) Persons
other than U.S. Persons (as defined in Regulation S) in reliance on Regulation
S. Such Initial Securities may thereafter be transferred to, among others, QIBs,
purchasers in reliance on Regulation S and, except as set forth below, IAIs in
accordance with Rule 501.

               (a)  Global Securities.  Rule 144A Securities shall be issued
                    ------------------
initially in the form of one or more permanent global Securities in definitive,
fully registered form (collectively, the "Rule 144A Global Security") and
Regulation S Securities shall be issued initially in the form of one or more
global Securities (collectively, the "Regulation S Global Security"), in each
case without interest coupons and bearing the Global Securities Legend and
Restricted Securities Legend, which shall be deposited on behalf of the
purchasers of the Securities represented thereby with the Securities Custodian,
and registered in the name of the Depositary or a nominee of the Depositary,
duly executed by the Company and authenticated by the Trustee as provided in
this Indenture.  One or more global securities in definitive, fully registered
form without interest coupons and bearing the Global Securities Legend and the
Restricted Securities Legend (collectively, the "IAI Global Security") shall
also be issued on the date of this Indenture, deposited with the Securities
Custodian, and registered in the name of the Depositary or a nominee of the
Depositary, duly executed by the Company and authenticated by the Trustee as
provided in this Indenture to accommodate transfers of beneficial interests in
the Securities to IAIs subsequent to the initial distribution.  Beneficial
ownership interests in the Regulation S Global Security shall not be
exchangeable for interests in the Rule 144A Global Security, the IAI Global
Security or any other Security without a Restricted Securities Legend until the
expiration of the Restricted Period. The Rule 144A Global Security, the IAI
Global Security and the Regulation S Global Security are each referred to herein
as a "Global Security" and are collectively referred to herein as "Global
Securities."  The aggregate principal amount at maturity of the Global
Securities may from time to time be increased or decreased by adjustments made
on the records of the Trustee and the Depositary or its nominee as hereinafter
provided.

               (b)  Book-Entry Provisions. This Section 2.1(b) shall apply only
                    ---------------------
to a Global Security deposited with or on behalf of the Depositary.
<PAGE>

                                                                               4

          The Company shall execute and the Trustee shall, in accordance with
this Section 2.1(b) and pursuant to an order of the Company, authenticate and
deliver initially one or more Global Securities that (a) shall be registered in
the name of the Depositary for such Global Security or Global Securities or the
nominee of such Depositary and (b) shall be delivered by the Trustee to such
Depositary or pursuant to such Depositary's instructions or held by the Trustee
as Securities Custodian.

          Members of, or participants in, the Depositary ("Agent Members") shall
have no rights under this Indenture with respect to any Global Security held on
their behalf by the Depositary or by the Trustee as Securities Custodian or
under such Global Security, and the Depositary may be treated by the Company,
the Trustee and any agent of the Company or the Trustee as the absolute owner of
such Global Security for all purposes whatsoever. Notwithstanding the foregoing,
nothing herein shall prevent the Company, the Trustee or any agent of the
Company or the Trustee from giving effect to any written certification, proxy or
other authorization furnished by the Depositary or impair, as between the
Depositary and its Agent Members, the operation of customary practices of such
Depositary governing the exercise of the rights of a holder of a beneficial
interest in any Global Security.

          (c)  Definitive Securities.  Except as provided in Section 2.3 or 2.4,
               ----------------------
owners of beneficial interests in Global Securities will not be entitled to
receive physical delivery of certificated Securities.

     2.2  Authentication. The Trustee shall authenticate and make available for
          --------------
delivery upon a written order of the Company signed by two Officers (1) Initial
Securities for original issue on the date hereof in an aggregate principal
amount at maturity of $575,000,000 and (2) the (A) Exchange Securities for issue
only in a Registered Exchange Offer and (B) Private Exchange Securities for
issue only a Private Exchange, in the case of each of (A) and (B) pursuant to
the Registration Agreement and for a like principal amount of Initial Securities
exchanged pursuant thereto. Such order shall specify the amount of the
Securities to be authenticated, the date on which the original issue of
Securities is to be authenticated and whether the Securities are to be Initial
Securities, Exchange Securities or Private Exchange Securities. The aggregate
principal amount at maturity of Securities outstanding at any time may not
exceed $575,000,000 except as provided in Section 2.07 of this Indenture.

     2.3  Transfer and Exchange.  (a)  Transfer and Exchange of Definitive
          ----------------------       -----------------------------------
Securities.  When Definitive Securities are presented to the Registrar with a
- -----------
request:

          (x)  to register the transfer of such Definitive Securities; or

          (y)  to exchange such Definitive Securities for an equal principal
    amount at maturity of Definitive Securities of other authorized
    denominations,
<PAGE>

                                                                               5

the Registrar shall register the transfer or make the exchange as requested if
its reasonable requirements for such transaction are met; provided, however,
                                                          --------  -------
that the Definitive Securities surrendered for transfer or exchange:

          (i)  shall be duly endorsed or accompanied by a written instrument of
    transfer in form reasonably satisfactory to the Company and the Registrar,
    duly executed by the Holder thereof or his attorney duly authorized in
    writing; and

          (ii) are accompanied by the following additional information and
    documents, as applicable:

                 (A)  if such Definitive Securities are being delivered to the
          Registrar by a Holder for registration in the name of such Holder,
          without transfer, a certification from such Holder to that effect (in
          the form set forth on the reverse side of the Initial Security); or

                 (B)  if such Definitive Securities are being transferred to the
          Company, a certification to that effect (in the form set forth on the
          reverse side of the Initial Security); or

                 (C)  if such Definitive Securities are being transferred
          pursuant to an exemption from registration in accordance with Rule 144
          under the Securities Act or in reliance upon another exemption from
          the registration requirements of the Securities Act, (i) a
          certification to that effect (in the form set forth on the reverse
          side of the Initial Security) and (ii) if the Company so requests, an
          opinion of counsel or other evidence reasonably satisfactory to it as
          to the compliance with the restrictions set forth in the legend set
          forth in Section 2.3(e)(i).

          (b)  Restrictions on Transfer of a Definitive Security for a
               -------------------------------------------------------
Beneficial Interest in a Global Security.  A Definitive Security may not be
- -----------------------------------------
exchanged for a beneficial interest in a Global Security except upon
satisfaction of the requirements set forth below.  Upon receipt by the Trustee
of a Definitive Security, duly endorsed or accompanied by a written instrument
of transfer in form reasonably satisfactory to the Company and the Registrar,
together with:

          (i)  certification (in the form set forth on the reverse side of the
    Initial Security) that such Definitive Security is being transferred (A) to
    a QIB in accordance with Rule 144A, (B) to an IAI that has furnished to the
    Trustee a signed letter substantially in the form of Exhibit D or (C)
    outside the United States in an offshore transaction within the meaning of
    Regulation S and in compliance with Rule 904 under the Securities Act; and

          (ii)  written instructions directing the Trustee to make, or to direct
    the Securities Custodian to make, an adjustment on its books and records
    with respect to such Global Security to reflect an increase in the aggregate
    principal amount at maturity of the Securities represented by the Global
    Security, such instructions to contain information regarding the Depositary
    account to be credited with such increase,
<PAGE>

                                                                               6

then the Trustee shall cancel such Definitive Security and cause, or direct the
Securities Custodian to cause, in accordance with the standing instructions and
procedures existing between the Depositary and the Securities Custodian, the
aggregate principal amount at maturity of Securities represented by the Global
Security to be increased by the aggregate principal amount at maturity of the
Definitive Security to be exchanged and shall credit or cause to be credited to
the account of the Person specified in such instructions a beneficial interest
in the Global Security equal to the principal amount at maturity of the
Definitive Security so canceled.  If no Global Securities are then outstanding
and the Global Security has not been previously exchanged for certificated
securities pursuant to Section 2.4, the Company shall issue and the Trustee
shall authenticate, upon written order of the Company in the form of an
Officers' Certificate, a new Global Security in the appropriate principal amount
at maturity.

          (c)  Transfer and Exchange of Global Securities.  (i)  The transfer
               -------------------------------------------
and exchange of Global Securities or beneficial interests therein shall be
effected through the Depositary, in accordance with this Indenture (including
applicable restrictions on transfer set forth herein, if any) and the procedures
of the Depositary therefor.  A transferor of a beneficial interest in a Global
Security shall deliver a written order given in accordance with the Depositary's
procedures containing information regarding the participant account of the
Depositary to be credited with a beneficial interest in such Global Security or
another Global Security and such account shall be credited in accordance with
such order with a beneficial interest in the applicable Global Security and the
account of the Person making the transfer shall be debited by an amount equal to
the beneficial interest in the Global Security being transferred.  Transfers by
an owner of a beneficial interest in the Rule 144A Global Security or the IAI
Global Security to a transferee who takes delivery of such interest through the
Regulation S Global Security, whether before or after the expiration of the
Restricted Period, shall be made only upon receipt by the Trustee of a
certification from the transferor to the effect that such transfer is being made
in accordance with Regulation S or (if available) Rule 144 under the Securities
Act and that, if such transfer is being made prior to the expiration of the
Restricted Period, the interest transferred shall be held immediately thereafter
through Euroclear or Cedel.  In the case of a transfer of a beneficial interest
in either the Regulation S Global Security or the Rule 144A Global Security for
an interest in the IAI Global Security, the transferee must furnish a signed
letter substantially in the form of Exhibit D to the Trustee.

          (ii)  If the proposed transfer is a transfer of a beneficial interest
    in one Global Security to a beneficial interest in another Global Security,
    the Registrar shall reflect on its books and records the date and an
    increase in the principal amount at maturity of the Global Security to which
    such interest is being transferred in an amount equal to the principal
    amount at maturity of the interest to be so transferred, and the Registrar
    shall reflect on its books and records the date and a corresponding decrease
    in the principal amount at maturity of Global Security from which such
    interest is being transferred.

          (iii) Notwithstanding any other provisions of this Appendix (other
    than the provisions set forth in Section 2.4), a Global Security may not be
    transferred as a whole except by the Depositary to a nominee of the
    Depositary or by a nominee of the Depositary to the Depositary or another
    nominee of the Depositary or by the Depositary
<PAGE>

                                                                               7

    or any such nominee to a successor Depositary or a nominee of such successor
    Depositary.

          (iv)  In the event that a Global Security is exchanged for Definitive
    Securities pursuant to Section 2.4 prior to the consummation of the
    Registered Exchange Offer or the effectiveness of the Shelf Registration
    Statement with respect to such Securities, such Securities may be exchanged
    only in accordance with such procedures as are substantially consistent with
    the provisions of this Section 2.3 (including the certification requirements
    set forth on the reverse of the Initial Securities intended to ensure that
    such transfers comply with Rule 144A, Regulation S or such other applicable
    exemption from registration under the Securities Act, as the case may be)
    and such other procedures as may from time to time be adopted by the
    Company.

          (d)  Restrictions on Transfer of Regulation S Global Security. (i)
               ---------------------------------------------------------
Prior to the expiration of the Restricted Period, interests in the Regulation S
Global Security may only be held through Euroclear or Cedel.  During the
Restricted Period, beneficial ownership interests in the Regulation S Global
Security may only be sold, pledged or transferred through Euroclear or Cedel in
accordance with the Applicable Procedures and only (A) to the Company, (B) so
long as such security is eligible for resale pursuant to Rule 144A, to a person
whom the selling holder reasonably believes is a QIB that purchases for its own
account or for the account of a QIB to whom notice is given that the resale,
pledge or transfer is being made in reliance on Rule 144A, (C) in an offshore
transaction in accordance with Regulation S, (D) pursuant to an exemption from
registration under the Securities Act provided by Rule 144 (if applicable) under
the Securities Act, (E) to an IAI purchasing for its own account, or for the
account of such an IAI, in a minimum principal amount at maturity of Securities
of $250,000 or (F) pursuant to an effective registration statement under the
Securities Act, in each case in accordance with any applicable securities laws
of any state of the United States.  Prior to the expiration of the Restricted
Period, transfers by an owner of a beneficial interest in the Regulation S
Global Security to a transferee who takes delivery of such interest through the
Rule 144A Global Security or the IAI Global Security shall be made only in
accordance with Applicable Procedures and upon receipt by the Trustee of a
written certification from the transferor of the beneficial interest in the form
provided on the reverse of the Initial Security to the effect that such transfer
is being made to (i) a person whom the transferor reasonably believes is a QIB
within the meaning of Rule 144A in a transaction meeting the requirements of
Rule 144A or (ii) an IAI purchasing for its own account, or for the account of
such an IAI, in a minimum principal amount at maturity of the Securities of
$250,000. Such written certification shall no longer be required after the
expiration of the Restricted Period. In the case of a transfer of a beneficial
interest in the Regulation S Global Security for an interest in the IAI Global
Security, the transferee must furnish a signed letter substantially in the form
of Exhibit D to the Trustee.

          (ii)  Upon the expiration of the Restricted Period, beneficial
    ownership interests in the Regulation S Global Security shall be
    transferable in accordance with applicable law and the other terms of this
    Indenture.
<PAGE>

                                                                               8

          (e)  Legend.
               -------

          (i)  Except as permitted by the following paragraphs (ii), (iii) or
    (iv), each Security certificate evidencing the Global Securities and the
    Definitive Securities (and all Securities issued in exchange therefor or in
    substitution thereof) shall bear a legend in substantially the following
    form (each defined term in the legend being defined as such for purposes of
    the legend only):


          "THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED (THE "SECURITIES ACT"), OR THE SECURITIES LAWS OF ANY STATE OR
OTHER JURISDICTION.  NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION
HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR
OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH
TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION."

          THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF AGREES TO OFFER,
SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE DATE (THE "RESALE
RESTRICTION TERMINATION DATE") WHICH IS TWO YEARS AFTER THE LATER OF THE
ORIGINAL ISSUE DATE HEREOF AND THE LAST DATE ON WHICH THE COMPANY OR ANY
AFFILIATE OF THE COMPANY WAS THE OWNER OF THIS SECURITY (OR ANY PREDECESSOR OF
SUCH SECURITY), ONLY (A) TO THE COMPANY, (B) PURSUANT TO A REGISTRATION
STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) FOR SO
LONG AS THE SECURITIES ARE ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE
SECURITIES ACT ("RULE 144A"), TO A PERSON IT REASONABLY BELIEVES IS A "QUALIFIED
INSTITUTIONAL BUYER" AS DEFINED IN RULE 144A THAT PURCHASES FOR ITS OWN ACCOUNT
OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN
THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS
AND SALES THAT OCCUR OUTSIDE THE UNITED STATES WITHIN THE MEANING OF REGULATION
S UNDER THE SECURITIES ACT, (E) TO AN "ACCREDITED INVESTOR" WITHIN THE MEANING
OF RULE 501(a)(1), (2), (3) OR (7) UNDER THE SECURITIES ACT THAT IS AN
INSTITUTIONAL ACCREDITED INVESTOR ACQUIRING THE SECURITY FOR ITS OWN ACCOUNT OR
FOR THE ACCOUNT OF SUCH AN INSTITUTIONAL ACCREDITED INVESTOR, IN EACH CASE IN A
MINIMUM PRINCIPAL AMOUNT AT MATURITY OF THE SECURITIES OF $250,000, FOR
INVESTMENT PURPOSES AND NOT WITH A VIEW TO OR FOR OFFER OR SALE IN CONNECTION
WITH ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT OR (F) PURSUANT TO ANY
OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES
ACT, SUBJECT TO THE COMPANY'S AND THE TRUSTEE'S RIGHT PRIOR TO ANY SUCH OFFER,
SALE OR TRANSFER PURSUANT TO CLAUSES (D), (E) OR (F) TO REQUIRE THE DELIVERY OF
AN OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO
EACH OF THEM. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER
THE RESALE RESTRICTION TERMINATION DATE."
<PAGE>

                                                                               9

Each Security evidencing a Global Security offered and sold to QIBs pursuant to
Rule 144A shall bear a legend in substantially the following form

    "EACH PURCHASER OF THIS SECURITY IS HEREBY NOTIFIED THAT THE SELLER OF THIS
SECURITY MAY BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF SECTION 5 OF THE
SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER."

Each Definitive Security shall bear the following additional legend:

    "IN CONNECTION WITH ANY TRANSFER, THE HOLDER WILL DELIVER TO THE REGISTRAR
AND TRANSFER AGENT SUCH CERTIFICATES AND OTHER INFORMATION AS SUCH TRANSFER
AGENT MAY REASONABLY REQUIRE TO CONFIRM THAT THE TRANSFER COMPLIES WITH THE
FOREGOING RESTRICTIONS."

          (ii)  Upon any sale or transfer of a Transfer Restricted Security that
    is a Definitive Security, the Registrar shall permit the Holder thereof to
    exchange such Transfer Restricted Security for a Definitive Security that
    does not bear the legends set forth above and rescind any restriction on the
    transfer of such Transfer Restricted Security if the Holder certifies in
    writing to the Registrar that its request for such exchange was made in
    reliance on Rule 144 (such certification to be in the form set forth on the
    reverse of the Initial Security).

          (iii) After a transfer of any Initial Securities or Private Exchange
    Securities during the period of the effectiveness of a Shelf Registration
    Statement with respect to such Initial Securities or Private Exchange
    Securities, as the case may be, all requirements pertaining to the
    Restricted Securities Legend on such Initial Securities or such Private
    Exchange Securities shall cease to apply and the requirements that any such
    Initial Securities or such Private Exchange Securities be issued in global
    form shall continue to apply.

          (iv)  Upon the consummation of a Registered Exchange Offer with
    respect to the Initial Securities pursuant to which Holders of such Initial
    Securities are offered Exchange Securities in exchange for their Initial
    Securities, all requirements pertaining to Initial Securities that Initial
    Securities be issued in global form shall continue to apply, and Exchange
    Securities in global form without the Restricted Securities Legend shall be
    available to Holders that exchange such Initial Securities in such
    Registered Exchange Offer.

          (v)   Upon the consummation of a Private Exchange with respect to the
    Initial Securities pursuant to which Holders of such Initial Securities are
    offered Private Exchange Securities in exchange for their Initial
    Securities, all requirements pertaining to such Initial Securities that
    Initial Securities be issued in global form shall continue to apply, and
    Private Exchange Securities in global form with the Restricted Securities
    Legend shall be available to Holders that exchange such Initial Securities
    in such Private Exchange.
<PAGE>

                                                                              10

          (vi)  Upon a sale or transfer after the expiration of the Restricted
    Period of any Initial Security acquired pursuant to Regulation S, all
    requirements that such Initial Security bear the Restricted Securities
    Legend shall cease to apply and the requirements requiring any such Initial
    Security be issued in global form shall continue to apply.

          (f)  Cancelation or Adjustment of Global Security.  At such time as
               ---------------------------------------------
all beneficial interests in a Global Security have either been exchanged for
Definitive Securities, transferred, redeemed, repurchased or canceled, such
Global Security shall be returned by the Depositary to the Trustee for
cancelation or retained and canceled by the Trustee.  At any time prior to such
cancelation, if any beneficial interest in a Global Security is exchanged for
Definitive Securities, transferred in exchange for an interest in another Global
Security, redeemed, repurchased or canceled, the principal amount at maturity of
Securities represented by such Global Security shall be reduced and an
adjustment shall be made on the books and records of the Trustee (if it is then
the Securities Custodian for such Global Security) with respect to such Global
Security, by the Trustee or the Securities Custodian, to reflect such reduction.

          (g)  Obligations with Respect to Transfers and Exchanges of
               ------------------------------------------------------
Securities.
- -----------

          (i)   To permit registrations of transfers and exchanges, the Company
    shall execute and the Trustee shall authenticate, Definitive Securities and
    Global Securities at the Registrar's request.

          (ii)  No service charge shall be made for any registration of transfer
    or exchange, but the Company may require payment of a sum sufficient to
    cover any transfer tax, assessments, or similar governmental charge payable
    in connection therewith (other than any such transfer taxes, assessments or
    similar governmental charge payable upon exchange or transfer pursuant to
    Sections 3.06, 4.06, 4.08 and 9.05 of the Indenture).

          (iii) Prior to the due presentation for registration of transfer of
    any Security, the Company, the Trustee, the Paying Agent or the Registrar
    may deem and treat the person in whose name a Security is registered as the
    absolute owner of such Security for the purpose of receiving payment of
    principal of and interest on such Security and for all other purposes
    whatsoever, whether or not such Security is overdue, and none of the
    Company, the Trustee, the Paying Agent or the Registrar  shall be affected
    by notice to the contrary.

          (iv)  The Company shall not be required to make and the Registrar need
    not register transfers or exchanges of Securities selected for redemption
    (except, in the case of Securities to be redeemed in part, the portion
    thereof not to be redeemed) or any Securities for a period of 15 days before
    a selection of Securities to be redeemed.

          (v)   All Securities issued upon any transfer or exchange pursuant to
    the terms of this Indenture shall evidence the same debt and shall be
    entitled to the same benefits under this Indenture as the Securities
    surrendered upon such transfer or exchange.

          (h)  No Obligation of the Trustee.
               -----------------------------
<PAGE>

                                                                              11

          (i)   The Trustee shall have no responsibility or obligation to any
    beneficial owner of a Global Security, a member of, or a participant in the
    Depositary or any other Person with respect to the accuracy of the records
    of the Depositary or its nominee or of any participant or member thereof,
    with respect to any ownership interest in the Securities or with respect to
    the delivery to any participant, member, beneficial owner or other Person
    (other than the Depositary) of any notice (including any notice of
    redemption or repurchase) or the payment of any amount, under or with
    respect to such Securities.  All notices and communications to be given to
    the Holders and all payments to be made to Holders under the Securities
    shall be given or made only to the registered Holders (which shall be the
    Depositary or its nominee in the case of a Global Security).  The rights of
    beneficial owners in any Global Security shall be exercised only through the
    Depositary subject to the applicable rules and procedures of the Depositary.
    The Trustee may rely and shall be fully protected in relying upon
    information furnished by the Depositary with respect to its members,
    participants and any beneficial owners.

          (ii)  The Trustee shall have no obligation or duty to monitor,
    determine or inquire as to compliance with any restrictions on transfer
    imposed under this Indenture or under applicable law with respect to any
    transfer of any interest in any Security (including any transfers between or
    among Depositary participants, members or beneficial owners in any Global
    Security) other than to require delivery of such certificates and other
    documentation or evidence as are expressly required by, and to do so if and
    when expressly required by, the terms of this Indenture, and to examine the
    same to determine substantial compliance as to form with the express
    requirements hereof.

    2.4  Definitive Securities
         ---------------------

          (a)  A Global Security deposited with the Depositary or with the
Trustee as Securities Custodian pursuant to Section 2.1 shall be transferred to
the beneficial owners thereof in the form of Definitive Securities in an
aggregate principal amount at maturity equal to the principal amount at maturity
of such Global Security, in exchange for such Global Security, only if such
transfer complies with Section 2.3 and (i) the Depositary notifies the Company
that it is unwilling or unable to continue as a Depositary for such Global
Security or if at any time the Depositary ceases to be a "clearing agency"
registered under the Exchange Act, and a successor depositary is not appointed
by the Company within 90 days of such notice, or (ii) an Event of Default has
occurred and is continuing or (iii) the Company, in its sole discretion,
notifies the Trustee in writing that it elects to cause the issuance of
certificated Securities under this Indenture.

          (b)  Any Global Security that is transferable to the beneficial owners
thereof pursuant to this Section 2.4 shall be surrendered by the Depositary to
the Trustee, to be so transferred, in whole or from time to time in part,
without charge, and the Trustee shall authenticate and deliver, upon such
transfer of each portion of such Global Security, an equal aggregate principal
amount at maturity of Definitive Securities of authorized denominations.  Any
portion of a Global Security transferred pursuant to this Section 2.4 shall be
executed, authenticated and delivered only in denominations of $1,000 of
principal amount at maturity and any integral multiple thereof and registered in
such names as the Depositary shall direct.  Any certificated Initial Security in
the form of a Definitive Security delivered in exchange for an
<PAGE>

                                                                              12

interest in the Global Security shall, except as otherwise provided by Section
2.3(e), bear the Restricted Securities Legend.

          (c)  Subject to the provisions of Section 2.4(b), the registered
Holder of a Global Security may grant proxies and otherwise authorize any
Person, including Agent Members and Persons that may hold interests through
Agent Members, to take any action which a Holder is entitled to take under this
Indenture or the Securities.

          (d)  In the event of the occurrence of any of the events specified in
Section 2.4(a)(i), (ii) or (iii), the Company will promptly make available to
the Trustee a reasonable supply of Definitive Securities in fully registered
form without interest coupons.
<PAGE>

                                                                       EXHIBIT A

                      [FORM OF FACE OF INITIAL SECURITY]

                          [Global Securities Legend]

          UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE
OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW
YORK, TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY
PAYMENT IS MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR
VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED
OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

          TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN
WHOLE, BUT NOT IN PART, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH
SUCCESSOR'S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE
LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE
INDENTURE REFERRED TO ON THE REVERSE HEREOF.


                        [Restricted Securities Legend]

          THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED (THE "SECURITIES ACT"), OR THE SECURITIES LAWS OF ANY STATE OR
OTHER JURISDICTION.  NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION
HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR
OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH
TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION.

          EACH PURCHASER OF THIS SECURITY IS HEREBY NOTIFIED THAT THE SELLER OF
THIS SECURITY MAY BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF SECTION 5
OF THE SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER.

          THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF AGREES TO OFFER,
SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE DATE (THE "RESALE
RESTRICTION TERMINATION DATE") WHICH IS TWO YEARS AFTER THE LATER OF THE
ORIGINAL ISSUE DATE HEREOF AND THE LAST DATE ON WHICH THE COMPANY OR ANY
AFFILIATE OF THE COMPANY WAS THE OWNER OF THIS SECURITY (OR ANY PREDECESSOR OF
SUCH SECURITY), ONLY (A) TO THE COMPANY, (B) PURSUANT TO A REGISTRATION
STATEMENT THAT HAS BEEN DECLARED
<PAGE>

                                                                               2

EFFECTIVE UNDER THE SECURITIES ACT, (C) FOR SO LONG AS THE SECURITIES ARE
ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE SECURITIES ACT ("RULE
144A"), TO A PERSON IT REASONABLY BELIEVES IS A "QUALIFIED INSTITUTIONAL BUYER"
AS DEFINED IN RULE 144A THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF
A QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS
BEING MADE IN RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS AND SALES THAT OCCUR
OUTSIDE THE UNITED STATES WITHIN THE MEANING OF REGULATION S UNDER THE
SECURITIES ACT, (E) TO AN "ACCREDITED INVESTOR" WITHIN THE MEANING OF RULE
501(a)(1), (2), (3) OR (7) UNDER THE SECURITIES ACT THAT IS AN INSTITUTIONAL
ACCREDITED INVESTOR ACQUIRING THE SECURITY FOR ITS OWN ACCOUNT OR FOR THE
ACCOUNT OF SUCH AN INSTITUTIONAL ACCREDITED INVESTOR, IN EACH CASE IN A MINIMUM
PRINCIPAL AMOUNT AT MATURITY OF THE SECURITIES OF $250,000, FOR INVESTMENT
PURPOSES AND NOT WITH A VIEW TO OR FOR OFFER OR SALE IN CONNECTION WITH ANY
DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT OR (F) PURSUANT TO ANY OTHER
AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT,
SUBJECT TO THE COMPANY'S AND THE TRUSTEE'S RIGHT PRIOR TO ANY SUCH OFFER, SALE
OR TRANSFER PURSUANT TO CLAUSES (D), (E) OR (F) TO REQUIRE THE DELIVERY OF AN
OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH
OF THEM. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE
RESALE RESTRICTION TERMINATION DATE.

                      [Legend for Definitive Securities]

    IN CONNECTION WITH ANY TRANSFER, THE HOLDER WILL DELIVER TO THE REGISTRAR
    AND TRANSFER AGENT SUCH CERTIFICATES AND OTHER INFORMATION AS SUCH TRANSFER
    AGENT MAY REASONABLY REQUIRE TO CONFIRM THAT THE TRANSFER COMPLIES WITH THE
    FOREGOING RESTRICTIONS."
<PAGE>

No.                                                                       $[   ]

                115/8% Senior Subordinated Discount Note due 2009

                                                                 CUSIP No. [   ]

          TeleCorp PCS, Inc., a Delaware corporation, promises to pay to Cede &
Co., or registered assigns, the principal sum listed on the Schedule of
Increases or Decreases in Global Security attached hereto on April 23, 2009.

          Interest Payment Dates: April 15 and October 15.

          Record Dates:  April 1 and October 1.
<PAGE>

                                                                               2

          Additional provisions of this Security are set forth on the other side
of this Security.

          IN WITNESS WHEREOF, the parties have caused this instrument to be duly
executed.


                                        TELECORP PCS, INC.,

                                         by
                                            ____________________________________
                                            Name:
                                            Title:

                                         by
                                            ____________________________________
                                            Name:
                                            Title:

Dated:

TRUSTEE'S CERTIFICATE OF
AUTHENTICATION

BANKERS TRUST COMPANY,
as Trustee, certifies that this is one of
the Securities referred to in the Indenture.


By:_________________________
     Authorized Signatory
<PAGE>

                                                                               3

                  [FORM OF REVERSE SIDE OF INITIAL SECURITY]

              11 5/8% Senior Subordinated Discount Note due 2009

1.  Interest
    --------

          (a) TeleCorp PCS, Inc., a Delaware corporation (such corporation, and
its successors and assigns under the Indenture hereinafter referred to, being
herein called the "Company"), promises to pay interest on the principal amount
of this Security at the rate per annum shown above. The Company shall pay
interest semiannually on April 15 and October 15 of each year commencing October
15, 2004. Interest on the Securities shall accrue from the most recent date to
which interest has been paid or, if no interest has been paid, from April 15,
2004. Interest shall be computed on the basis of a 360-day year of twelve 30-day
months. The Company shall pay cash interest on overdue principal at the rate
borne by the Securities plus 1% per annum, and it shall pay interest on overdue
installments of interest at the same rate to the extent lawful.

          (b) Liquidated Damages. The holder of this Security is entitled to
              ------------------
the benefits of an Exchange and Registration Rights Agreement, dated as of April
23, 1999, among the Company, TeleCorp Communications, Inc. (the "Subsidiary
Guarantor") and the Initial Purchasers named therein (the "Registration
Agreement"). Capitalized terms used in this paragraph (b) but not defined herein
have the meanings assigned to them in the Registration Agreement. If (i) the
Shelf Registration Statement or Exchange Offer Registration Statement, as
applicable under the Registration Agreement, is not filed with the Commission on
or prior to 60 days after the Issue Date, (ii) the Exchange Offer Registration
Statement or the Shelf Registration Statement, as the case may be, is not
declared effective within 180 days after the Issue Date, (iii) the Registered
Exchange Offer is not consummated on or prior to 210 days after the Issue Date,
or (iv) the Shelf Registration Statement is filed and declared effective within
180 days after the Issue Date but shall thereafter cease to be effective (at any
time that the Company is obligated to maintain the effectiveness thereof)
without being succeeded within 45 days by an additional Registration Statement
filed and declared effective (each such event referred to in clauses (i) through
(iv), a "Registration Default"), the Company shall pay liquidated damages to
each holder of Transfer Restricted Securities, during the period of such
Registration Default, in an amount equal to $0.192 per week per $1,000 of
Accreted Value of the Securities constituting Transfer Restricted Securities
held by such holder until the applicable Registration Statement is filed or
declared effective, the Registered Exchange Offer is consummated or the Shelf
Registration Statement again becomes effective, as the case may be. All accrued
liquidated damages shall be paid to holders in the same manner as interest
payments on the Securities on semi-annual payment dates which correspond to
interest payment dates for the Securities. Following the cure of all
Registration Defaults, the accrual of liquidated damages shall cease. The
Trustee shall have no responsibility with respect to the determination of the
amount of any such liquidated damages. For purposes of the foregoing, "Transfer
Restricted Securities" means (i) each Initial Security until the date on which
such Initial Security has been exchanged for a freely transferable Exchange
Security in the Registered Exchange Offer, (ii) each Initial Security or Private
Exchange Security until the date on which such Initial Security or Private
Exchange Security has been effectively registered under the Securities Act
<PAGE>

                                                                               4

and disposed of in accordance with a Shelf Registration Statement or (iii) each
Initial Security or Private Exchange Security until the date on which such
Initial Security or Private Exchange Security is distributed to the public
pursuant to Rule 144 under the Securities Act or is saleable pursuant to Rule
144(k) under the Securities Act.

2.  Method of Payment
    -----------------

          The Company shall pay interest on the Securities (except defaulted
interest) to the Persons who are registered holders of Securities at the close
of business on the April 1 or October 1 next preceding the interest payment date
even if Securities are canceled after the record date and on or before the
interest payment date. Holders must surrender Securities to a Paying Agent to
collect principal payments. The Company shall pay principal, premium, liquidated
damages and interest in money of the United States of America that at the time
of payment is legal tender for payment of public and private debts. Payments in
respect of the Securities represented by a Global Security (including principal,
premium, liquidated damages and interest) shall be made by wire transfer of
immediately available funds to the accounts specified by The Depository Trust
Company. The Company will make all payments in respect of a certificated
Security (including principal, premium and interest), by mailing a check to the
registered address of each Holder thereof; provided, however, that payments on
                                           --------  -------
the Securities may also be made, in the case of a Holder of at least $1,000,000
aggregate principal amount at maturity of Securities, by wire transfer to a U.S.
dollar account maintained by the payee with a bank in the United States if such
Holder elects payment by wire transfer by giving written notice to the Trustee
or the Paying Agent to such effect designating such account no later than 30
days immediately preceding the relevant due date for payment (or such other date
as the Trustee may accept in its discretion).

3.  Paying Agent and Registrar
    --------------------------

          Initially, Bankers Trust Company, a New York banking corporation (the
"Trustee"), will act as Paying Agent and Registrar. The Company may appoint and
change any Paying Agent, Registrar or co-registrar without notice. The Company
or any of its domestically incorporated Wholly Owned Subsidiaries may act as
Paying Agent, Registrar or co-registrar.

4.  Indenture
    ---------

          The Company issued the Securities under an Indenture dated as of April
23, 1999 (the "Indenture"), among the Company, the Subsidiary Guarantor and the
Trustee. The terms of the Securities include those stated in the Indenture and
those made part of the Indenture by reference to the Trust Indenture Act of 1939
(15 U.S.C. (S)(S) 77aaa-77bbbb) as in effect on the date of the Indenture (the
    -----
"TIA"). Terms defined in the Indenture and not defined herein have the meanings
ascribed thereto in the Indenture. The Securities are subject to all terms and
provisions of the Indenture, and Securityholders are referred to the Indenture
and the TIA for a statement of such terms and provisions.

          The Securities are senior subordinated unsecured obligations of the
Company limited to $575,000,000 aggregate principal amount at maturity at any
one time outstanding (subject to Sections 2.01 and 2.08 of the Indenture). This
Security is one of the Initial Securities
<PAGE>

                                                                               5

referred to in the Indenture. The Securities include the Initial Securities and
any Exchange Securities and Private Exchange Securities issued in exchange for
Initial Securities. The Initial Securities, the Exchange Securities and the
Private Exchange Securities are treated as a single class of securities under
the Indenture. The Indenture imposes certain limitations on the ability of the
Company and its Restricted Subsidiaries to, among other things, make certain
Investments and other Restricted Payments, pay dividends and other
distributions, Incur Indebtedness, enter into consensual restrictions upon the
payment of certain dividends and distributions by Restricted Subsidiaries, enter
into or permit certain transactions with Affiliates Asset Dispositions. The
Indenture also imposes limitations on the ability of the Company to consolidate
or merge with or into any other Person or convey, transfer or lease all or
substantially all of the property of the Company.

          To guarantee the due and punctual payment of the principal and
interest on the Securities and all other amounts payable by the Company under
the Indenture and the Securities when and as the same shall be due and payable,
whether at maturity, by acceleration or otherwise, according to the terms of the
Securities and the Indenture, the Subsidiary Guarantors jointly and severally,
unconditionally guarantee the Guaranteed Obligations on a senior subordinated
basis pursuant to the terms of the Indenture.

5.  Optional Redemption
    -------------------

          Except as set forth in the following paragraph, the Securities will
not be redeemable at the option of the Company prior to April 15, 2004.
Thereafter, the Securities will be redeemable at the option of the Company, in
whole or in part, on not less than 30 nor more than 60 days' prior notice, at
the following redemption prices (expressed as percentages of principal amount at
maturity), plus accrued and unpaid interest, if any, to the redemption date
(subject to the right of holders of record on the relevant record date to
receive interest, if any, due on the relevant interest payment date), if
redeemed during the 12-month period commencing on April 15 of the years set
forth below:
<PAGE>

                                                                               6

<TABLE>
<CAPTION>
          Year                   Redemption
                                    Price
          ---------------------------------
          <S>                    <C>
          2004                    105.813%
          2005                    103.875%
          2006                    101.938%
          2007 and thereafter     100.000%
</TABLE>

          In addition, at any time and from time to time prior to April 15,
2002, the Company may redeem up to a maximum of 35% of the aggregate principal
amount at maturity of the Securities with the proceeds of one or more Equity
Offerings by the Company, at a redemption price equal to 111 5/8% of the
Accreted Value on the redemption date; provided, however, that, after giving
                                       --------  -------
effect to any such redemption at least 65% of the aggregate principal amount at
maturity of the Securities remains outstanding. In addition, any such redemption
shall be made within 60 days of such Equity Offering upon not less than 30 nor
more than 60 days' notice mailed to each holder of Securities being redeemed and
otherwise in accordance with the procedures set forth in the Indenture.

6.  Sinking Fund
    ------------

          The Securities are not subject to any sinking fund.

7.  Notice of Redemption
    --------------------

          Notice of redemption will be mailed by first-class mail at least 30
days but not more than 60 days before the redemption date to each Holder of
Securities to be redeemed at his or her registered address. Securities in
denominations larger than $1,000 of principal amount at maturity may be redeemed
in part but only in whole multiples of $1,000 of principal amount at maturity.
If money sufficient to pay the redemption price of and accrued and unpaid
interest and liquidated damages, if any, on all Securities (or portions thereof)
to be redeemed on the redemption date is deposited with the Paying Agent on or
before the redemption date and certain other conditions are satisfied, on and
after such date interest ceases to accrue on such Securities (or such portions
thereof) called for redemption.
<PAGE>

                                                                               7

8.  Repurchase of Securities at the Option of Holders upon Change of Control
    ------------------------------------------------------------------------

          Upon a Change of Control, each Holder of Securities will have the
right, subject to certain conditions specified in the Indenture, to require the
Company to repurchase all or any part of such holder's Securities at a purchase
price in cash equal to (a) 101% of the Accreted Value on the Purchase Date, if
such date is on or before April 15, 2004, or (b) 101% of the principal amount at
maturity, plus accrued and unpaid interest, if any, to the Purchase Date
(subject to the right of Holders of record on the relevant record date to
receive interest due on the relevant interest payment date), if such date is
after April 15, 2004, as provided in, and subject to the terms of, the
Indenture.

9. Subordination
   -------------

          The Securities are subordinated to Senior Indebtedness, as defined in
the Indenture. To the extent provided in the Indenture, Senior Indebtedness must
be paid before the Securities may be paid. The Company and each Subsidiary
Guarantor agrees, and each Securityholder by accepting a Security agrees, to the
subordination provisions contained in the Indenture and authorizes the Trustee
to give it effect and appoints the Trustee as attorney-in-fact for such purpose.

10.  Denominations; Transfer; Exchange
     ---------------------------------

          The Securities are in registered form without coupons in denominations
of $1,000 and whole multiples of $1,000. A Holder may transfer or exchange
Securities in accordance with the Indenture. Upon any transfer or exchange, the
Registrar and the Trustee may require a Holder, among other things, to furnish
appropriate endorsements or transfer documents and to pay any taxes required by
law or permitted by the Indenture. The Registrar need not register the transfer
of or exchange any Securities selected for redemption (except, in the case of a
Security to be redeemed in part, the portion of the Security not to be redeemed)
or to transfer or exchange any Securities for a period of 15 days prior to a
selection of Securities to be redeemed.

11.  Persons Deemed Owners
     ---------------------

          The registered Holder of this Security may be treated as the owner of
it for all purposes.

12.  Unclaimed Money
     ---------------

          If money for the payment of principal or interest remains unclaimed
for two years, the Trustee or Paying Agent shall pay the money back to the
Company at its written request unless an abandoned property law designates
another Person. After any such payment, Holders entitled to the money must look
only to the Company and not to the Trustee for payment.
<PAGE>

                                                                               8
13.  Discharge and Defeasance
     ------------------------

          Subject to certain conditions, the Company at any time may terminate
some of or all its obligations under the Securities and the Indenture if the
Company deposits with the Trustee money or U.S. Government Obligations for the
payment of principal and interest on the Securities to redemption or maturity,
as the case may be.

14.  Amendment, Waiver
     -----------------

          Subject to certain exceptions set forth in the Indenture, (i) the
Indenture or the Securities may be amended without prior notice to any
Securityholder but with the written consent of the Holders of at least a
majority in aggregate principal amount of the outstanding Securities and (ii)
any default or noncompliance with any provision may be waived with the written
consent of the Holders of at least a majority in principal amount at maturity of
the outstanding Securities. Subject to certain exceptions set forth in the
Indenture, without the consent of any Holder of Securities, the Company and the
Trustee may amend the Indenture or the Securities (i) to cure any ambiguity,
omission, defect or inconsistency; (ii) to comply with Article 5 of the
Indenture; (iii) to provide for uncertificated Securities in addition to or in
place of certificated Securities; (iv) to add Subsidiary Guarantees with respect
to the Securities; (v) to secure the Securities; (vi) to add additional
covenants or to surrender rights and powers conferred on the Company; (vii) to
comply with the requirements of the Commission in order to effect or maintain
the qualification of the Indenture under the TIA; (viii) to make any change that
does not adversely affect the rights of any Securityholder; (ix) to make any
change in the subordination provisions of the Indenture that would limit or
terminate the benefits available to any holder of Senior Indebtedness of the
Company (or any representative thereof) under such subordination provisions; or
(x) to provide for the issuance of the Exchange Securities or Private Exchange
Securities.

15.  Defaults and Remedies
     ---------------------

          If an Event of Default occurs (other than an Event of Default relating
to certain events of bankruptcy, insolvency or reorganization of the Company)
and is continuing, the Trustee or the Holders of at least 25% in principal
amount at maturity of the outstanding Securities may declare the principal of
and accrued but unpaid interest on all the Securities to be due and payable. If
an Event of Default relating to certain events of bankruptcy, insolvency or
reorganization of the Company occurs, the principal of and interest on all the
Securities shall become immediately due and payable without any declaration or
other act on the part of the Trustee or any Holders. Under certain
circumstances, the Holders of a majority in principal amount at maturity of the
outstanding Securities may rescind any such acceleration with respect to the
Securities and its consequences.

          If an Event of Default occurs and is continuing, the Trustee shall be
under no obligation to exercise any of the rights or powers under the Indenture
at the request or direction of any of the Holders unless such Holders have
offered to the Trustee reasonable indemnity or security against any loss,
liability or expense. Except to enforce the right to receive payment of
principal, premium (if any) or interest when due, no Holder may pursue any
remedy with respect to the Indenture or the Securities unless (i) such Holder
has previously given the Trustee notice
<PAGE>

                                                                               9

that an Event of Default is continuing, (ii) Holders of at least 25% in
principal amount at maturity of the outstanding Securities have requested the
Trustee in writing to pursue the remedy, (iii) such Holders have offered the
Trustee reasonable security or indemnity against any loss, liability or expense,
(iv) the Trustee has not complied with such request within 60 days after the
receipt of the request and the offer of security or indemnity and (v) the
Holders of a majority in principal amount at maturity of the outstanding
Securities have not given the Trustee a direction inconsistent with such request
within such 60-day period. Subject to certain restrictions, the Holders of a
majority in principal amount at maturity of the outstanding Securities are given
the right to direct the time, method and place of conducting any proceeding for
any remedy available to the Trustee or of exercising any trust or power
conferred on the Trustee. The Trustee, however, may refuse to follow any
direction that conflicts with law or the Indenture or that the Trustee
determines is unduly prejudicial to the rights of any other Holder or that would
involve the Trustee in personal liability. Prior to taking any action under the
Indenture, the Trustee shall be entitled to indemnification satisfactory to it
in its sole discretion against all losses and expenses caused by taking or not
taking such action.

16.  Trustee Dealings with the Company
     ---------------------------------

          Subject to certain limitations imposed by the TIA, the Trustee under
the Indenture, in its individual or any other capacity, may become the owner or
pledgee of Securities and may otherwise deal with and collect obligations owed
to it by the Company or its Affiliates and may otherwise deal with the Company
or its Affiliates with the same rights it would have if it were not Trustee.

17.  No Recourse Against Others
     --------------------------

          A director, officer, employee or stockholder, as such, of the Company
or any Subsidiary Guarantor shall not have any liability for any obligations of
the Company under the Securities or the Indenture or for any claim based on, in
respect of or by reason of such obligations or their creation. By accepting a
Security, each Securityholder waives and releases all such liability. The waiver
and release are part of the consideration for the issue of the Securities.

18.  Authentication
     --------------

          This Security shall not be valid until an authorized signatory of the
Trustee (or an authenticating agent) manually signs the certificate of
authentication on the other side of this Security.

19.  Abbreviations
     -------------

          Customary abbreviations may be used in the name of a Securityholder or
an assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the
entireties), JT TEN (=joint tenants with rights of survivorship and not as
tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to Minors
Act).
<PAGE>

                                                                              10

20.  Governing Law
     -------------

          THIS SECURITY SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH,
THE LAWS OF THE STATE OF NEW YORK BUT WITHOUT GIVING EFFECT TO APPLICABLE
PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF
ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

21.  CUSIP Numbers
     -------------

          Pursuant to a recommendation promulgated by the Committee on Uniform
Security Identification Procedures, the Company has caused CUSIP numbers to be
printed on the Securities and has directed the Trustee to use CUSIP numbers in
notices of redemption as a convenience to Securityholders. No representation is
made as to the accuracy of such numbers either as printed on the Securities or
as contained in any notice of redemption and reliance may be placed only on the
other identification numbers placed thereon.

22.  Holders' Compliance with Registration Agreement.
     ------------------------------------------------

          Each Holder of a Security, by acceptance hereof, acknowledges and
agrees to the provisions of the Registration Agreement, including, without
limitation, the obligations of the Holders with respect to a registration and
the indemnification of the Company to the extent provided therein.

          The Company will furnish to any Holder of Securities upon written
request and without charge to the Holder a copy of the Indenture which has in it
the text of this Security.
<PAGE>

                                                                              11

                                ASSIGNMENT FORM



To assign this Security, fill in the form below:

I or we assign and transfer this Security to


___________________________________________________________________________
             (Print or type assignee's name, address and zip code)

___________________________________________________________________________
                 (Insert assignee's soc. sec. or tax I.D. No.)


and irrevocably appoint ________________________________________________________
agent to transfer this Security on the books of the Company.  The agent may
substitute another to act for him.


Date: ______________________ Your Signature: ______________________________


___________________________________________________________________________
     Sign exactly as your name appears on the other side of this Security.
<PAGE>

                                                                              12

CERTIFICATE TO BE DELIVERED UPON EXCHANGE OR REGISTRATION OF TRANSFER RESTRICTED
                                   SECURITIES


This certificate relates to $_________ principal amount at maturity of
Securities held in (check applicable space) ____ book-entry or _____ definitive
form by the undersigned.

The undersigned (check one box below):

[_]  has requested the Trustee by written order to deliver in exchange for its
     beneficial interest in the Global Security held by the Depositary a
     Security or Securities in definitive, registered form of authorized
     denominations and an aggregate principal amount at maturity equal to its
     beneficial interest in such Global Security (or the portion thereof
     indicated above);

[_]  has requested the Trustee by written order to exchange or register the
     transfer of a Security or Securities.

In connection with any transfer of any of the Securities evidenced by this
certificate occurring prior to the expiration of the period referred to in Rule
144(k) under the Securities Act, the undersigned confirms that such Securities
are being transferred in accordance with its terms:

CHECK ONE BOX BELOW

     (1) [_]   to the Company; or

     (2) [_]   pursuant to an effective registration statement under the
               Securities Act of 1933; or

     (3) [_]   inside the United States to a "qualified institutional buyer" (as
               defined in Rule 144A under the Securities Act of 1933) that
               purchases for its own account or for the account of a qualified
               institutional buyer to whom notice is given that such transfer is
               being made in reliance on Rule 144A, in each case pursuant to and
               in compliance with Rule 144A under the Securities Act of 1933; or

     (4) [_]   outside the United States in an offshore transaction within the
               meaning of Regulation S under the Securities Act in compliance
               with Rule 904 under the Securities Act of 1933; or

     (5) [_]   to an institutional "accredited investor" (as defined in Rule
               501(a)(1), (2), (3) or (7) under the Securities Act of 1933) that
               has furnished to the Trustee a signed letter containing certain
               representations and agreements; or

     (6) [_]   pursuant to another available exemption from registration
               provided by Rule 144 under the Securities Act of 1933.
<PAGE>

                                                                              13

     Unless one of the boxes is checked, the Trustee will refuse to register any
     of the Securities evidenced by this certificate in the name of any Person
     other than the registered holder thereof; provided, however, that if box
                                               --------  -------
     (4), (5) or (6) is checked, the Trustee may require, prior to registering
     any such transfer of the Securities, such legal opinions, certifications
     and other information as the Company has reasonably requested to confirm
     that such transfer is being made pursuant to an exemption from, or in a
     transaction not subject to, the registration requirements of the Securities
     Act of 1933.


                                        __________________________
                                        Your Signature

Signature Guarantee:

Date: ______________________       __________________________
Signature must be guaranteed       Signature of Signature
by a participant in a              Guarantee
recognized signature guaranty
medallion program or other
signature guarantor acceptable
to the Trustee

____________________________________________________________



             TO BE COMPLETED BY PURCHASER IF (3) ABOVE IS CHECKED.

          The undersigned represents and warrants that it is purchasing this
Security for its own account or an account with respect to which it exercises
sole investment discretion and that it and any such account is a "qualified
institutional buyer" within the meaning of Rule 144A under the Securities Act of
1933, and is aware that the sale to it is being made in reliance on Rule 144A
and acknowledges that it has received such information regarding the Company as
the undersigned has requested pursuant to Rule 144A or has determined not to
request such information and that it is aware that the transferor is relying
upon the undersigned's foregoing representations in order to claim the exemption
from registration provided by Rule 144A.


Dated: ________________             ______________________________
                                    NOTICE: To be executed by
                                            an executive officer
<PAGE>

                                                                              14

                     [TO BE ATTACHED TO GLOBAL SECURITIES]

             SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY

          The initial principal amount at maturity of this Global Security is
$[ ]. The following increases or decreases in this Global Security have been
made:

<TABLE>
<S>           <C>                           <C>                            <C>                               <C>
Date of       Amount of decrease in         Amount of increase in          Principal amount at maturity      Signature of authorized
Exchange      Principal  Amount of this     Principal Amount at maturity   of this Global Security           signatory of Trustee or
              Global Security               of this Global Security        following such decrease or        Securities Custodian
                                                                           increase
</TABLE>
<PAGE>

                                                                              15

                      OPTION OF HOLDER TO ELECT PURCHASE

          If you want to elect to have this Security purchased by the Company
pursuant to Section 4.06 (Asset Disposition) or 4.08 (Change of Control) of the
Indenture, check the box:

     Asset Disposition [_]                              Change of Control [_]

          If you want to elect to have only part of this Security purchased by
the Company pursuant to Section 4.06 or 4.08 of the Indenture, state the
principal amount at maturity:  $___________


Date: __________________ Your Signature: ______________________________________
                                         (Sign exactly as your name appears on
                                          the other side of the Security)


Signature Guarantee: ___________________________________________________________
                     Signature must be guaranteed by a participant in a
                     recognized signature guaranty medallion program or other
                     signature guarantor acceptable to the Trustee
<PAGE>

                                                                     EXHIBIT B
                      [FORM OF FACE OF EXCHANGE SECURITY]

No.                                                                  $__________

                11 5/8% Senior Subordinated Discount Note due 2009

                                                                CUSIP No. ______

          TeleCorp PCS, Inc., a Delaware corporation, promises to pay to Cede &
Co., or registered assigns, the principal sum listed on the Schedule of
Increases or Decreases in Global Security attached hereto on April 23, 2009.

          Interest Payment Dates:  April 15 and October 15.

          Record Dates:  April 1 and October 1.
<PAGE>

                                                                               2

          Additional provisions of this Security are set forth on the other side
of this Security.

          IN WITNESS WHEREOF, the parties have caused this instrument to be duly
executed.

                              TELECORP PCS, INC.,

                                by

                                  ___________________________________________
                                  Name:
                                  Title:

                                by
                                  ___________________________________________

                                  Name:
                                  Title:


Dated:

TRUSTEE'S CERTIFICATE OF
     AUTHENTICATION

BANKERS TRUST COMPANY,
as Trustee, certifies that this is one of
the Securities referred to in the Indenture.

 by  _______________________________________
      Authorized Signatory
<PAGE>

                                                                               3

                  [FORM OF REVERSE SIDE OF EXCHANGE SECURITY]

               11 5/8% Senior Subordinated Discount Note due 2009


1.  Interest.
    --------

          TeleCorp PCS, Inc., a Delaware corporation (such corporation, and its
successors and assigns under the Indenture hereinafter referred to, being herein
called the "Company"), promises to pay interest on the principal amount of this
Security at the rate per annum shown above. The Company shall pay interest
semiannually on April 15 and October 15 of each year. Interest on the Securities
shall accrue from the most recent date to which interest has been paid or, if no
interest has been paid, from April 15, 2004. Interest shall be computed on the
basis of a 360-day year of twelve 30-day months. The Company shall pay cash
interest on overdue principal at the rate borne by the Securities plus 1% per
annum, and it shall pay interest on overdue installments of interest at the same
rate to the extent lawful.

2.  Method of Payment
    -----------------

          The Company shall pay interest on the Securities (except defaulted
interest) to the Persons who are registered holders of Securities at the close
of business on the April 1 or October 1 next preceding the interest payment date
even if Securities are canceled after the record date and on or before the
interest payment date. Holders must surrender Securities to a Paying Agent to
collect principal payments. The Company shall pay principal, premium and
interest in money of the United States of America that at the time of payment is
legal tender for payment of public and private debts. Payments in respect of the
Securities represented by a Global Security (including principal, premium and
interest) shall be made by wire transfer of immediately available funds to the
accounts specified by The Depository Trust Company. The Company will make all
payments in respect of a certificated Security (including principal, premium and
interest), by mailing a check to the registered address of each Holder thereof;
provided, however, that payments on the Securities may also be made, in the case
- --------  -------
of a Holder of at least $1,000,000 aggregate principal amount at maturity of
Securities, by wire transfer to a U.S. dollar account maintained by the payee
with a bank in the United States if such Holder elects payment by wire transfer
by giving written notice to the Trustee or the Paying Agent to such effect
designating such account no later than 30 days immediately preceding the
relevant due date for payment (or such other date as the Trustee may accept in
its discretion).

3.  Paying Agent and Registrar
    --------------------------

          Initially, Bankers Trust Company, a New York banking corporation (the
"Trustee"), will act as Paying Agent and Registrar. The Company may appoint and
change any Paying Agent, Registrar or co-registrar without notice. The Company
or any of its domestically incorporated Wholly Owned Subsidiaries may act as
Paying Agent, Registrar or co-registrar.
<PAGE>

                                                                               4

4.  Indenture
    ---------

          The Company issued the Securities under an Indenture dated as of April
23, 1999 (the "Indenture"), among the Company, the Subsidiary Guarantor and the
Trustee. The terms of the Securities include those stated in the Indenture and
those made part of the Indenture by reference to the Trust Indenture Act of 1939
(15 U.S.C. (S)(S) 77aaa-77bbbb) as in effect on the date of the Indenture (the
    ------
"TIA"). Terms defined in the Indenture and not defined herein have the meanings
ascribed thereto in the Indenture. The Securities are subject to all terms and
provisions of the Indenture, and Securityholders are referred to the Indenture
and the TIA for a statement of such terms and provisions.

          The Securities are senior subordinated unsecured obligations of the
Company limited to $575,000,000 principal amount at maturity at any one time
outstanding (subject to Sections 2.01 and 2.08 of the Indenture). This Security
is one of the Initial Securities referred to in the Indenture. The Securities
include the Original Securities and any Exchange Securities and Private Exchange
Securities issued in exchange for the Initial Securities pursuant to the
Indenture. The Initial Securities, the Exchange Securities and the Private
Exchange Securities are treated as a single class of securities under the
Indenture. The Indenture imposes certain limitations on the ability of the
Company and its Restricted Subsidiaries to, among other things, make certain
Investments and other Restricted Payments, pay dividends and other
distributions, Incur Indebtedness, enter into consensual restrictions upon the
payment of certain dividends and distributions by Restricted Subsidiaries, enter
into or permit certain transactions with Affiliates, and make Asset
Dispositions. The Indenture also imposes limitations on the ability of the
Company to consolidate or merge with or into any other Person or convey,
transfer or lease all or substantially all of the property of the Company.

          To guarantee the due and punctual payment of the principal and
interest, if any, on the Securities and all other amounts payable by the Company
under the Indenture and the Securities when and as the same shall be due and
payable, whether at maturity, by acceleration or otherwise, according to the
terms of the Securities and the Indenture, the Subsidiary Guarantors have,
jointly and severally, unconditionally guaranteed the Guaranteed Obligations on
a senior subordinated basis pursuant to the terms of the Indenture.
<PAGE>

                                                                               5

5.  Optional Redemption
    -------------------

          Except as set forth in the following paragraph, the Securities will
not be redeemable at the option of the Company prior to April 15, 2004.
Thereafter, the Securities will be redeemable at the option of the Company, in
whole or in part, on not less than 30 nor more than 60 days' prior notice, at
the following redemption prices (expressed as percentages of principal amount at
maturity), plus accrued and unpaid interest, if any, to the redemption date
(subject to the right of holders of record on the relevant record date to
receive interest, if any, due on the relevant interest payment date), if
redeemed during the 12-month period commencing on April 15 of the years set
forth below:

          YEAR                                      REDEMPTION
                                                      PRICE
          ----------------------------------------------------

          2004                                      105.813%
          2005                                      103.875%
          2006                                      101.938%
          2007 and thereafter                       100.000%

          In addition, at any time and from time to time prior to April 15,
2002, the Company may redeem up to a maximum of 35% of the aggregate principal
amount at maturity of the Securities with the proceeds of one or more Equity
Offerings by the Company, at a redemption price equal to 111 5/8% of the
Accreted Value on the redemption date; provided, however, that, after giving
                                       --------  -------
effect t o any such redemption at least 65% of the aggregate principal amount at
maturity of the Securities remains outstanding. In addition, any such redemption
shall be made within 60 days of such Equity Offering upon not less than 30 nor
more than 60 days' notice mailed to each holder of Securities being redeemed and
otherwise in accordance with the procedures set forth in the Indenture.

6.  Sinking Fund
    ------------

          The Securities are not subject to any sinking fund.

7.  Notice of Redemption
    --------------------

          Notice of redemption will be mailed by first-class mail at least 30
days but not more than 60 days before the redemption date to each Holder of
Securities to be redeemed at his or her registered address. Securities in
denominations larger than $1,000 of principal amount at maturity may be redeemed
in part but only in whole multiples of $1,000 of principal amount at maturity.
If money sufficient to pay the redemption price of and accrued and unpaid
interest and liquidated damages, if any, on all Securities (or portions thereof)
to be redeemed on the redemption date is deposited with the Paying Agent on or
before the redemption date and certain other conditions are satisfied, on and
after such date interest ceases to accrue on such Securities (or such portions
thereof) called for redemption.
<PAGE>

                                                                               6

8.  Repurchase of Securities at the Option of Holders upon Change of Control
    ------------------------------------------------------------------------

          Upon a Change of Control, each Holder of Securities will have the
right, subject to certain conditions specified in the Indenture, to require the
Company to repurchase all or any part of such holder's Securities at a purchase
price in cash equal to (a) 101% of the Accreted Value on the Purchase Date, if
such date is on or before April 15, 2004, or (b) 101% of the principal amount at
maturity, plus accrued and unpaid interest, if any, to the Purchase Date
(subject to the right of Holders of record on the relevant record date to
receive interest due on the relevant interest payment date), if such date is
after April 15, 2004, as provided in, and subject to the terms of, the
Indenture.

9.  Subordination
    -------------

          The Securities are subordinated to Senior Indebtedness, as defined in
the Indenture. To the extent provided in the Indenture, Senior Indebtedness must
be paid before the Securities may be paid. The Company and each Subsidiary
Guarantor agrees, and each Securityholder by accepting a Security agrees, to the
subordination provisions contained in the Indenture and authorizes the Trustee
to give it effect and appoints the Trustee as attorney-in-fact for such purpose.


10.  Denominations; Transfer; Exchange
     ---------------------------------

          The Securities are in registered form without coupons in denominations
of $1,000 and whole multiples of $1,000 of principal amount at maturity. A
Holder may transfer or exchange Securities in accordance with the Indenture.
Upon any transfer or exchange, the Registrar and the Trustee may require a
Holder, among other things, to furnish appropriate endorsements or transfer
documents and to pay any taxes required by law or permitted by the Indenture.
The Registrar need not register the transfer of or exchange any Securities
selected for redemption (except, in the case of a Security to be redeemed in
part, the portion of the Security not to be redeemed) or to transfer or exchange
any Securities for a period of 15 days prior to a selection of Securities to be
redeemed or 15 days before an interest payment date.

11.  Persons Deemed Owners
     ---------------------

          The registered Holder of this Security may be treated as the owner of
it for all purposes.

12.  Unclaimed Money
     ---------------

          If money for the payment of principal or interest remains unclaimed
for two years, the Trustee or Paying Agent shall pay the money back to the
Company at its written request unless an abandoned property law designates
another Person. After any such payment, Holders entitled to the money must look
only to the Company and not to the Trustee for payment.
<PAGE>

                                                                               7

13.  Discharge and Defeasance
     ------------------------

          Subject to certain conditions, the Company at any time may terminate
some of or all its obligations under the Securities and the Indenture if the
Company deposits with the Trustee money or U.S. Government Obligations for the
payment of principal and interest on the Securities to redemption or maturity,
as the case may be.

14.  Amendment, Waiver
     -----------------

          Subject to certain exceptions set forth in the Indenture, (i) the
Indenture or the Securities may be amended without prior notice to any
Securityholder but with the written consent of the Holders of at least a
majority in aggregate principal amount at maturity of the outstanding Securities
and (ii) any default or noncompliance with any provision may be waived with the
written consent of the Holders of at least a majority in principal amount at
maturity of the outstanding Securities.  Subject to certain exceptions set forth
in the Indenture, without the consent of any Holder of Securities, the Company
and the Trustee may amend the Indenture or the Securities (i) to cure any
ambiguity, omission, defect or inconsistency; (ii) to comply with Article 5 of
the Indenture; (iii) to provide for uncertificated Securities in addition to or
in place of certificated Securities; (iv) to add Subsidiary Guarantees with
respect to the Securities; (v) to secure the Securities; (vi) to add additional
covenants or to surrender rights and powers conferred on the Company; (vii) to
comply with the requirements of the Commission in order to effect or maintain
the qualification of the Indenture under the TIA;  (viii) to make any change
that does not adversely affect the rights of any Securityholder; (ix) to make
any change in the subordination provisions of the Indenture that would limit or
terminate the benefits available to any holder of Senior Indebtedness of the
Company (or any representative thereof) under such subordination provisions; or
(x) to provide for the issuance of the Exchange Securities or Private Exchange
Securities.

15.  Defaults and Remedies
     ---------------------

          If an Event of Default occurs (other than an Event of Default relating
to certain events of bankruptcy, insolvency or reorganization of the Company)
and is continuing, the Trustee or the Holders of at least 25% in principal
amount at maturity of the outstanding Securities may declare the principal of
and accrued but unpaid interest on all the Securities to be due and payable. If
an Event of Default relating to certain events of bankruptcy, insolvency or
reorganization of the Company occurs, the principal of and interest on all the
Securities shall become immediately due and payable without any declaration or
other act on the part of the Trustee or any Holders.  Under certain
circumstances, the Holders of a majority in principal amount at maturity of the
outstanding Securities may rescind any such acceleration with respect to the
Securities and its consequences.

          If an Event of Default occurs and is continuing, the Trustee shall be
under no obligation to exercise any of the rights or powers under the Indenture
at the request or direction of any of the Holders unless such Holders have
offered to the Trustee reasonable indemnity or security against any loss,
liability or expense.  Except to enforce the right to receive payment of
principal, premium (if any) or interest when due, no Holder may pursue any
remedy with respect to the Indenture or the Securities unless (i) such Holder
has previously given the Trustee notice
<PAGE>

                                                                               8

that an Event of Default is continuing, (ii) Holders of at least 25% in
principal amount at maturity of the outstanding Securities have requested the
Trustee in writing to pursue the remedy, (iii) such Holders have offered the
Trustee reasonable security or indemnity against any loss, liability or expense,
(iv) the Trustee has not complied with such request within 60 days after the
receipt of the request and the offer of security or indemnity and (v) the
Holders of a majority in principal amount at maturity of the outstanding
Securities have not given the Trustee a direction inconsistent with such request
within such 60-day period. Subject to certain restrictions, the Holders of a
majority in principal amount at maturity of the outstanding Securities are given
the right to direct the time, method and place of conducting any proceeding for
any remedy available to the Trustee or of exercising any trust or power
conferred on the Trustee. The Trustee, however, may refuse to follow any
direction that conflicts with law or the Indenture or that the Trustee
determines is unduly prejudicial to the rights of any other Holder or that would
involve the Trustee in personal liability. Prior to taking any action under the
Indenture, the Trustee shall be entitled to indemnification satisfactory to it
in its sole discretion against all losses and expenses caused by taking or not
taking such action.

16.  Trustee Dealings with the Company
     ---------------------------------

          Subject to certain limitations imposed by the TIA,  the Trustee under
the Indenture, in its individual or any other capacity, may become the owner or
pledgee of Securities and may otherwise deal with and collect obligations owed
to it by the Company or its Affiliates and may otherwise deal with the Company
or its Affiliates with the same rights it would have if it were not Trustee.

17.  No Recourse Against Others
     --------------------------

          A director, officer, employee or stockholder, as such, of the Company
or any Subsidiary Guarantor shall not have any liability for any obligations of
the Company under the Securities or the Indenture or for any claim based on, in
respect of or by reason of such obligations or their creation.  By accepting a
Security, each Securityholder waives and releases all such liability.  The
waiver and release are part of the consideration for the issue of the
Securities.

18.  Authentication
     --------------

          This Security shall not be valid until an authorized signatory of the
Trustee (or an authenticating agent) manually signs the certificate of
authentication on the other side of this Security.

19.  Abbreviations
     -------------

          Customary abbreviations may be used in the name of a Securityholder or
an assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the
entireties), JT TEN (=joint tenants with rights of survivorship and not as
tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to Minors
Act).
<PAGE>

                                                                               9

20.  Governing Law
     -------------

          THIS SECURITY SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH,
THE LAWS OF THE STATE OF NEW YORK BUT WITHOUT GIVING EFFECT TO APPLICABLE
PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF
ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

21.  CUSIP Numbers
     -------------

          Pursuant to a recommendation promulgated by the Committee on Uniform
Security Identification Procedures, the Company has caused CUSIP numbers to be
printed on the Securities and has directed the Trustee to use CUSIP numbers in
notices of redemption as a convenience to Securityholders.  No representation is
made as to the accuracy of such numbers either as printed on the Securities or
as contained in any notice of redemption and reliance may be placed only on the
other identification numbers placed thereon.

          The Company will furnish to any Holder of Securities upon written
request and without charge to the Holder a copy of the Indenture which has in it
the text of this Security.
<PAGE>

                                                                              10
                                ASSIGNMENT FORM

To assign this Security, fill in the form below:

I or we assign and transfer this Security to:


______________________________________________________________________
             (Print or type assignee's name, address and zip code)

______________________________________________________________________
                 (Insert assignee's soc. sec. or tax I.D. No.)


and irrevocably appoint ________________ agent to transfer this Security on the
books of the Company. The agent may substitute another to act for him.


Date: _____________________ Your Signature: _______________________________


________________________________________________________________________________
Sign exactly as your name appears on the other side of this Security.  Signature
must be guaranteed by a participant in a recognized signature guaranty medallion
program or other signature guarantor acceptable to the Trustee.
<PAGE>

                                                                              11

                      OPTION OF HOLDER TO ELECT PURCHASE

          If you want to elect to have this Security purchased by the Company
pursuant to Section 4.06 (Asset Sale) or 4.08 (Change of Control) of the
Indenture, check the box:

              Asset Sale[_]                       Change of Control[_]


          If you want to elect to have only part of this Security purchased by
the Company pursuant to Section 4.06 or 4.08 of the Indenture, state the amount:
$________________________


Date: _____________    Your Signature:____________________________________
                                       (Sign exactly as your name appears
                                        on the other side of the Security)


Signature
Guarantee:______________________________________________________________________
               Signature must be guaranteed by a participant in a recognized
               signature Guaranty medallion program or other signature guarantor
               acceptable to the Trustee.
<PAGE>

                                                                       EXHIBIT C


                        FORM OF SUPPLEMENTAL INDENTURE


                    SUPPLEMENTAL INDENTURE (this "Supplemental
               Indenture") dated as of      , among [GUARANTOR] (the "New
               Guarantor"), a subsidiary of TELECORP PCS, INC. (or its
               successor), a Delaware corporation (the "Company"),
               TELECORP COMMUNICATIONS INC. and BANKERS TRUST COMPANY,
               a New York corporation banking, as trustee under the
               indenture referred to below (the "Trustee").


                             W I T N E S S E T H :


          WHEREAS the Company and TeleCorp Communications, Inc. (the "Existing
Guarantor") has heretofore executed and delivered to the Trustee an Indenture
(the "Indenture") dated as of April 23, 1999, providing for the issuance of an
aggregate principal amount at maturity of up to $575,000,000 of 11 5/8% Senior
Subordinated Discount Notes due 2009 (the "Securities");

          WHEREAS Section 4.11 of the Indenture provides that under certain
circumstances the Company is required to cause the New Guarantor to execute and
deliver to the Trustee a supplemental indenture pursuant to which the New
Guarantor shall unconditionally guarantee all the Company's obligations under
the Securities pursuant to a Subsidiary Guarantee on the terms and conditions
set forth herein; and

          WHEREAS pursuant to Section 9.01 of the Indenture, the Trustee, the
Company and the Existing Guarantor are authorized to execute and deliver this
Supplemental Indenture;

          NOW THEREFORE, in consideration of the foregoing and for other good
and valuable consideration, the receipt of which is hereby acknowledged, the New
Guarantor, the Company, the Existing Guarantor and the Trustee mutually covenant
and agree for the equal and ratable benefit of the holders of the Securities as
follows:

          1.  Agreement to Guarantee.  The New Guarantor hereby agrees, jointly
              -----------------------
and severally with the Existing Guarantor, to unconditionally guarantee the
Company's obligations under the Securities on the terms and subject to the
conditions set forth in Article 10 of the Indenture and to be bound by all other
applicable provisions of the Indenture and the Securities.

          2.  Ratification of Indenture; Supplemental Indentures Part of
              ----------------------------------------------------------
Indenture.  Except as expressly amended hereby, the Indenture is in all respects
- ----------
ratified and confirmed and all the terms, conditions and provisions thereof
shall remain in full force and effect.  This Supplemental Indenture shall form a
part of the Indenture for all purposes, and every holder of Securities
heretofore or hereafter authenticated and delivered shall be bound hereby.
<PAGE>

          3.  Governing Law.  THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY,
              --------------
AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK BUT WITHOUT
GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT
THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

          4.  Trustee Makes No Representation.  The Trustee makes no
              --------------------------------
representation as to the validity or sufficiency of this Supplemental Indenture.

          5.  Counterparts.  The parties may sign any number of copies of this
              -------------
Supplemental Indenture.  Each signed copy shall be an original, but all of them
together represent the same agreement.

          6.  Effect of Headings.  The Section headings herein are for
              -------------------
convenience only and shall not effect the construction thereof.


          IN WITNESS WHEREOF, the parties hereto have caused this Supplemental
Indenture to be duly executed as of the date first above written.


                                           [NEW GUARANTOR],

                                            by

                                              ________________________________
                                              Name:
                                              Title:


                                           TELECORP PCS, INC.,

                                           by
                                              ________________________________
                                              Name:
                                              Title:


                                           TELECORP COMMUNICATIONS, INC.,

                                              ________________________________
                                              Name:
                                              Title:


                                           BANKERS TRUST COMPANY, as Trustee,

                                           by
                                              ________________________________
                                              Name:
                                              Title:
<PAGE>

                                                                       EXHIBIT D
                                    Form of
                      Transferee Letter of Representation


TeleCorp PCS, Inc.

In care of
Bankers Trust Company
One Bankers Trust Plaza
130 Liberty Street
New York, New York  10006

Ladies and Gentlemen:


     This certificate is delivered to request a transfer of $    principal
amount at maturity of the 11 5/8% Senior Subordinated Discount Notes due 2009
(the "Notes") of TeleCorp PCS, Inc. (the "Company").

     Upon transfer, the Notes would be registered in the name of the new
beneficial owner as follows:

Name:________________________

Address:_____________________

Taxpayer ID Number:__________

     The undersigned represents and warrants to you that:

     1. We are an institutional "accredited investor" (as defined in Rule
501(a)(1), (2), (3) or (7) under the Securities Act of 1933, as amended (the
"Securities Act")), purchasing for our own account or for the account of such an
institutional "accredited investor" at least $250,000 principal amount at
maturity of the Securities, and we are acquiring the Securities not with a view
to, or for offer or sale in connection with, any distribution in violation of
the Securities Act.  We have such knowledge and experience in financial and
business matters as to be capable of evaluating the merits and risks of our
investment in the Securities, and we invest in or purchase securities similar to
the Securities in the normal course of our business.  We, and any accounts for
which we are acting, are each able to bear the economic risk of our or its
investment.
<PAGE>

                                                                               2

     2.  We understand that the Securities have not been registered under the
Securities Act and, unless so registered, may not be sold except as permitted in
the following sentence.  We agree on our own behalf and on behalf of any
investor account for which we are purchasing the Securities to offer, sell or
otherwise transfer such Securities prior to the date that is two years after the
later of the date of original issue and the last date on which TeleCorp or any
affiliate of TeleCorp was the owner of such Securities (or any predecessor
thereto) (the "Resale Restriction Termination Date") only (a) to TeleCorp, (b)
pursuant to a registration statement that has been declared effective under the
Securities Act, (c) in a transaction complying with the requirements of Rule
144A under the Securities Act ("Rule 144A"), to a person we reasonably believe
is a qualified institutional buyer under Rule 144A (a "QIB") that is purchasing
for its own account or for the account of a QIB and to whom notice is given that
the transfer is being made in reliance on Rule 144A, (d) in an offshore
transaction within the meaning of, and in compliance with, Regulation S under
the Securities Act, (e) to an institutional "accredited investor" within the
meaning of Rule 501(a)(1), (2), (3) or (7) under the Securities Act that is
purchasing for its own account or for the account of such an institutional
"accredited investor", in each case in a minimum principal amount at maturity of
Notes of $250,000, or (f) pursuant to any other available exemption from the
registration requirements of the Securities Act, subject in each of the
foregoing cases to any requirement of law that the disposition of our property
or the property of such investor account or accounts be at all times within our
or their control and in compliance with any applicable state securities laws.
The foregoing restrictions on resale will not apply subsequent to the Resale
Restriction Termination Date.  If any resale or other transfer of the Notes is
proposed to be made pursuant to clause (e) above prior to the Resale Restriction
Termination Date, the transferor shall deliver a letter from the transferee
substantially in the form of this letter to TeleCorp and the Trustee, which
shall provide, among other things, that the transferee is an institutional
"accredited investor" within the meaning of Rule 501(a)(1), (2), (3) or (7)
under the Securities Act and that it is acquiring such Notes for investment
purposes and not for distribution in violation of the Securities Act.  Each
purchaser acknowledges that TeleCorp and the Trustee reserve the right prior to
the offer, sale or other transfer prior to the Resale Restriction Termination
Date of the Notes pursuant to clause (d), (e) or (f) above to require the
delivery of an opinion of counsel, certifications or other information
satisfactory to TeleCorp and the Trustee.



                              TRANSFEREE:_____________________

                                by:___________________________
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
             ARTICLE 1 Definitions and Incorporation by Reference
                       ------------------------------------------
<S>                                                                       <C>
SECTION 1.01.  Definitions..............................................   2
SECTION 1.02.  Other Definitions........................................  27
SECTION 1.03.  Incorporation by Reference of Trust Indenture Act........  27
SECTION 1.04.  Rules of Construction....................................  27

                           ARTICLE 2 The Securities
                                     --------------

SECTION 2.01.  Form and Dating..........................................  28
SECTION 2.02.  Execution and Authentication.............................  28
SECTION 2.03.  Registrar and Paying Agent...............................  29
SECTION 2.04.  Paying Agent To Hold Money in Trust......................  29
SECTION 2.05.  Securityholder Lists.....................................  30
SECTION 2.06.  Transfer and Exchange....................................  30
SECTION 2.07.  Replacement Securities...................................  31
SECTION 2.08.  Outstanding Securities...................................  31
SECTION 2.09.  Temporary Securities.....................................  32
SECTION 2.10.  Cancelation..............................................  32
SECTION 2.11.  Defaulted Interest.......................................  32
SECTION 2.12.  CUSIP Numbers............................................  32

                             ARTICLE 3 Redemption
                                       ----------

SECTION 3.01.  Notices to Trustee.......................................  32
SECTION 3.02.  Selection of Securities To Be Redeemed...................  33
SECTION 3.03.  Notice of Redemption.....................................  33
SECTION 3.04.  Effect of Notice of Redemption...........................  34
SECTION 3.05.  Deposit of Redemption Price..............................  34
SECTION 3.06.  Securities Redeemed in Part..............................  34

                              ARTICLE 4 Covenants
                                        ---------
SECTION 4.01.  Payment of Securities....................................  34
SECTION 4.02.  Provision of Financial Information.......................  35
SECTION 4.03.  Limitation on Incurrence of Indebtedness.................  35
SECTION 4.04.  Limitation on Restricted Payments........................  38
SECTION 4.05.  Limitation on Restrictions Affecting Restricted
                    Subsidiaries........................................  43
SECTION 4.06.  Limitation on Certain Asset Dispositions.................  44
SECTION 4.07.  Limitation on Transactions with Affiliates...............  45
SECTION 4.08.  Change of Control........................................  47
SECTION 4.09.  Compliance Certificate...................................  48
SECTION 4.10.  Further Instruments and Acts.............................  48
SECTION 4.11.  Future Subsidiary Guarantors.............................  48
SECTION 4.12.  Limitation on Activities of the Company and the
                    Restricted Subsidiaries.............................  48
SECTION 4.13.  Limitation on Designations of Unrestricted
                    Subsidiaries........................................  48
SECTION 4.14.  Limitation on Layered Indebtedness.......................  50
</TABLE>
<PAGE>

<TABLE>
<S>                                                                       <C>
SECTION 4.15.  Amendments to the Securities Purchase Agreement..........  50

                          ARTICLE 5 Successor Company
                                    -----------------

SECTION 5.01.  Merger, Consolidation and Certain Sales of Assets........  50

                        ARTICLE 6 Defaults and Remedies
                                  ---------------------

SECTION 6.01.  Events of Default........................................  52
SECTION 6.02.  Acceleration.............................................  53
SECTION 6.03.  Other Remedies...........................................  54
SECTION 6.04.  Waiver of Past Defaults..................................  54
SECTION 6.05.  Control by Majority......................................  54
SECTION 6.06.  Limitation on Suits......................................  54
SECTION 6.07.  Rights of Holders To Receive Payment.....................  55
SECTION 6.08.  Collection Suit by Trustee...............................  55
SECTION 6.09.  Trustee May File Proofs of Claim.........................  55
SECTION 6.10.  Priorities...............................................  55
SECTION 6.11.  Undertaking for Costs....................................  56
SECTION 6.12.  Waiver of Stay or Extension Laws.........................  56

                               ARTICLE 7 Trustee
                                         -------

SECTION 7.01.  Duties of Trustee........................................  56
SECTION 7.02.  Rights of Trustee........................................  57
SECTION 7.03.  Individual Rights of Trustee.............................  58
SECTION 7.04.  Trustee's Disclaimer.....................................  58
SECTION 7.05.  Notice of Defaults.......................................  58
SECTION 7.06.  Reports by Trustee to Holders............................  58
SECTION 7.07.  Compensation and Indemnity...............................  59
SECTION 7.08.  Replacement of Trustee...................................  59
SECTION 7.09.  Successor Trustee by Merger..............................  60
SECTION 7.10.  Eligibility; Disqualification............................  61
SECTION 7.11.  Preferential Collection of Claims Against Company........  61
SECTION 7.12.  Trustee Acting as Paying Agent or Registrar..............  61

                 ARTICLE 8 Discharge of Indenture; Defeasance
                           ----------------------------------

SECTION 8.01.  Discharge of Liability on Securities; Defeasance.........  61
SECTION 8.02.  Conditions to Defeasance.................................  62
SECTION 8.03.  Application of Trust Money...............................  63
SECTION 8.04.  Repayment to Company.....................................  63
SECTION 8.05.  Indemnity for Government Obligations.....................  63
SECTION 8.06.  Reinstatement............................................  63

                             ARTICLE 9 Amendments
                                       ----------

SECTION 9.01.  Without Consent of Holders...............................  64
SECTION 9.02.  With Consent of Holders..................................  65
SECTION 9.03.  Compliance with Trust Indenture Act......................  66
SECTION 9.04.  Revocation and Effect of Consents and Waivers............  66
SECTION 9.05.  Notation on or Exchange of Securities....................  66
SECTION 9.06.  Trustee To Sign Amendments...............................  66
SECTION 9.07.  Payment for Consent......................................  66

                           ARTICLE 10 Subordination
                                      -------------
</TABLE>


<PAGE>

<TABLE>
<S>                                                                       <C>
SECTION 10.01.  Agreement To Subordinate................................  67
SECTION 10.02.  Liquidation, Dissolution, Bankruptcy....................  67
SECTION 10.03.  Default on Senior Indebtedness..........................  67
SECTION 10.04.  Acceleration of Payment of Securities...................  68
SECTION 10.05.  When Distribution Must Be Paid Over.....................  68
SECTION 10.06.  Subrogation.............................................  69
SECTION 10.07.  Relative Rights.........................................  69
SECTION 10.08.  Subordination May Not Be Impaired by Company............  69
SECTION 10.09.  Rights of Trustee and Paying Agent......................  69
SECTION 10.10.  Distribution or Notice to Representative................  69
SECTION 10.11.  Article 10 Not To Prevent Events of Default or
                    Limit Right To Accelerate...........................  70
SECTION 10.12.  Trust Moneys Not Subordinated...........................  70
SECTION 10.13.  Trustee Entitled To Rely................................  70
SECTION 10.14.  Trustee To Effectuate Subordination.....................  70
SECTION 10.15.  Trustee Not Fiduciary for Holders of Senior
                    Indebtedness........................................  70
SECTION 10.16.  Reliance by Holders of Senior Indebtedness on
                    Subordination Provisions............................  71
SECTION 10.17.  Trustee's Compensation Not Prejudiced...................  71
SECTION 10.18.  Defeasance..............................................  71

                       ARTICLE 11 Subsidiary Guarantees
                                  ---------------------

SECTION 11.01.  Subsidiary Guarantees...................................  71
SECTION 11.02.  Limitation on Liability.................................  73
SECTION 11.03.  Successors and Assigns..................................  74
SECTION 11.04.  No Waiver...............................................  74
SECTION 11.05.  Modification............................................  74
SECTION 11.06.  Execution of Supplemental Indenture for Future
                    Subsidiary Guarantors...............................  74

             ARTICLE 12 Subordination of the Subsidiary Guarantees
                        ------------------------------------------

SECTION 12.01.  Agreement To Subordinate................................  75
SECTION 12.02.  Liquidation, Dissolution, Bankruptcy....................  75
SECTION 12.03.  Default on Designated Senior Indebtedness of a
                    Subsidiary Guarantor................................  75
SECTION 12.04.  Demand for Payment......................................  76
SECTION 12.05.  When Distribution Must Be Paid Over.....................  76
SECTION 12.06.  Subrogation.............................................  76
SECTION 12.07.  Relative Rights.........................................  77
SECTION 12.08.  Subordination May Not Be Impaired by a Subsidiary
                    Guarantor...........................................  77
SECTION 12.09.  Rights of Trustee and Paying Agent......................  77
SECTION 12.10.  Distribution or Notice to Representative................  77
SECTION 12.11.  Article 12 Not To Prevent Events of Default or
                    Limit Right To Accelerate...........................  77
SECTION 12.12.  Trustee Entitled To Rely................................  78
SECTION 12.13.  Trustee To Effectuate Subordination.....................  78
SECTION 12.14.  Trustee Not Fiduciary for Holders of Senior
                    Indebtedness of a Subsidiary Guarantor..............  78
SECTION 12.15.  Reliance by Holders of Senior Indebtedness of a
                    Subsidiary Guarantor on Subordination Provisions....  78
SECTION 12.16.  Defeasance..............................................  78

                           ARTICLE 13 Miscellaneous
                                      -------------

SECTION 13.01.  Trust Indenture Act Controls............................  79
SECTION 13.02.  Notices.................................................  79
SECTION 13.03.  Communication by Holders with Other Holders.............  80
</TABLE>
<PAGE>

<TABLE>
<S>                                                                       <C>
SECTION 13.04.  Certificate and Opinion as to Conditions Precedent......  80
SECTION 13.05.  Statements Required in Certificate or Opinion...........  80
SECTION 13.06.  When Securities Disregarded.............................  80
SECTION 13.07.  Rules by Trustee, Paying Agent and Registrar............  81
SECTION 13.08.  Legal Holidays..........................................  81
SECTION 13.09.  GOVERNING LAW...........................................  81
SECTION 13.10.  No Recourse Against Others..............................  81
SECTION 13.11.  Successors..............................................  81
SECTION 13.12.  Multiple Originals......................................  81
SECTION 13.13.  Table of Contents; Headings.............................  81
</TABLE>
<PAGE>

                                                                            Page
                                                                            ----

Appendix A  -  Provisions Relating to Initial Securities, Private Exchange
               Securities and Exchange Securities
Exhibit A   -  Form of Initial Security
Exhibit B   -  Form of Exchange Security
Exhibit C   -  Form of Supplemental Indenture
Exhibit D   -  Form of Transferee Letter of Representation

<PAGE>

                                                                    EXHIBIT 10.1

                                                                  EXECUTION COPY

================================================================================





                              TELECORP PCS., INC.

             Increasing Rate Subordinated Notes Series A Due 2012

             Increasing Rate Subordinated Notes Series B Due 2012






                            NOTE PURCHASE AGREEMENT



                           Dated as of May 11, 1998

================================================================================
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                               Page
<S>                                                                                                            <C>
1.       Authorization of Notes............................................................................     -2-
2.       Sale and Purchase of Notes........................................................................     -2-
         2.1      Sale of Series A Notes...................................................................     -2-
         2.2      Sale of Series B Notes...................................................................     -2-
3.       Closings; Fees....................................................................................     -2-
         3.1      Series A Closings........................................................................     -2-
         3.2      Series B Closings........................................................................     -3-
         3.3      Payments.................................................................................     -4-
         3.4      Legal Fees...............................................................................     -4-
4.       Terms of the Series A Notes and Series B Notes....................................................     -4-
         4.1      Scheduled Payment of Notes...............................................................     -4-
         4.2      Interest on Series A Notes...............................................................     -4-
         4.3      Interest on Series B Notes...............................................................     -5-
5.       Conditions to Closing.............................................................................     -6-
         5.1      Initial Series A Closing.................................................................     -6-
         5.2      Initial Series B Closing.................................................................     -9-
         5.3      Conditions to Series A Closings and Series B Closings....................................    -10-
6.       Representations and Warranties, etc...............................................................    -11-
         6.1      Organization, Standing, etc..............................................................    -11-
         6.2      Authorization; Enforceability............................................................    -12-
         6.3      Qualification............................................................................    -12-
         6.4      Financial Statements.....................................................................    -12-
         6.5      Changes, etc.............................................................................    -12-
         6.6      Compliance with Other Instruments, etc...................................................    -13-
         6.7      Governmental Consents, etc...............................................................    -13-
         6.8      Capital Stock and Related Matters........................................................    -13-
         6.9      Debt.....................................................................................    -14-
         6.10     Title to Properties; Liens...............................................................    -14-
         6.11     Litigation...............................................................................    -14-
         6.12     Patents, Trademarks, Authorizations, etc.................................................    -14-
         6.13     Requirements of Law......................................................................    -15-
         6.14     Federal Reserve Regulations..............................................................    -15-
         6.15     Status Under Certain Federal Statutes....................................................    -15-
         6.16     Compliance with ERISA....................................................................    -15-
         6.17     Offer of Securities......................................................................    -15-
         6.18     Use of Proceeds..........................................................................    -16-
         6.19     Solvency of the Company..................................................................    -16-
         6.20     Certain Fees.............................................................................    -16-
         6.21     Regulatory Compliance....................................................................    -16-
</TABLE>

                                     -ii-
<PAGE>

<TABLE>
<S>                                                                                                            <C>
         6.22     Disclosure...............................................................................    -17-
         6.23     Subsidiaries.............................................................................    -17-
         6.24     Security Agreement.......................................................................    -17-
         6.25     Licenses.................................................................................    -18-
         6.26     Transaction Documents....................................................................    -18-
7.       Purchase Intent; Investor Status..................................................................    -19-
         7.1      Purchase Intent..........................................................................    -19-
         7.2      Accredited Investor......................................................................    -19-
8.       Furnishing of Information.........................................................................    -19-
         8.1      Financial Statements and Other Information...............................................    -19-
9.       Inspection; Confidentiality.......................................................................    -21-
         9.1      Inspection...............................................................................    -21-
         9.2      Confidentiality..........................................................................    -21-
10.      Prepayment of Notes...............................................................................    -22-
         10.1     Optional Prepayments.....................................................................    -22-
         10.2     Contingent Prepayments Upon Change of Control............................................    -22-
         10.3     Premium..................................................................................    -23-
         10.4     Mandatory Redemption of Series A Notes...................................................    -23-
         10.5     Mandatory Redemption of Series B Notes...................................................    -24-
         10.6     Notice of Optional Prepayments; Officers' Certificate....................................    -25-
         10.7     Allocation of Partial Prepayments........................................................    -25-
         10.8     Maturity; Surrender, etc.................................................................    -25-
         10.9     Acquisition of Notes.....................................................................    -25-
11.      Covenants.........................................................................................    -25-
         11.1     Payment of Notes.........................................................................    -25-
         11.2     Payment of Taxes and Claims..............................................................    -26-
         11.3     Liens, etc...............................................................................    -26-
         11.4     Restricted Payments......................................................................    -26-
         11.5     Consolidation, Merger, Sale of Assets, etc...............................................    -26-
         11.6     Requirements of Law......................................................................    -27-
         11.7     Transactions with Affiliates.............................................................    -27-
         11.8     Corporate Existence, etc.; Business......................................................    -28-
         11.9     Fundamental Business Change..............................................................    -28-
         11.10    Compliance with ERISA....................................................................    -28-
12.      Events of Default; Acceleration...................................................................    -28-
13.      Remedies on Default, etc..........................................................................    -31-
14.      Subordination.....................................................................................    -32-
         14.1     Notes Subordinate to Senior Debt.........................................................    -32-
         14.2     Payment of Proceeds Upon Dissolution, Etc................................................    -32-
         14.3     No Payment When Senior Debt in Default...................................................    -34-
         14.4     Acceleration of Subordinated Debt........................................................    -35-
         14.5     Payment Permitted If No Default..........................................................    -35-
</TABLE>

                                     -iii-
<PAGE>

<TABLE>
<S>                                                                                                            <C>
         14.6     Subrogation To Rights of Holders of Senior Debt..........................................    -35-
         14.7     Provisions Solely To Define Relative Rights..............................................    -36-
         14.8     No Waiver of Subordination Provisions....................................................    -36-
         14.9     Reliance On Judicial Order or Certificate of Liquidating Agent...........................    -37-
15.      Definitions.......................................................................................    -37-
16.      Tax Matters.......................................................................................    -51-
         16.1     Taxes....................................................................................    -51-
17.      Notes held by Company, etc., Deemed Not Outstanding...............................................    -53-
18.      Payments on Notes.................................................................................    -53-
         18.1     Place of Payment.........................................................................    -53-
         18.2     Home Office Payment......................................................................    -54-
         18.3     Expenses, etc............................................................................    -54-
19.      Survival of Representations and Warranties........................................................    -55-
20.      Amendments and Waivers............................................................................    -55-
21.      Notices, etc......................................................................................    -55-
22.      Indemnification...................................................................................    -56-
23.      Successors and Assigns; Participations; Assignments; Replacement of Notes.........................    -56-
         23.1     Successors and Assigns...................................................................    -56-
         23.2     Participations...........................................................................    -57-
         23.3     Assignments..............................................................................    -57-
         23.4     Register.................................................................................    -58-
         23.5     Disclosure of Information in Connection with a Transfer                                      -58-
         23.6     Assignment to Federal Reserve Bank.......................................................    -58-
         23.7      Replacement of Notes....................................................................    -58-
24.      Remarketing.......................................................................................    -59-
25.      Adjustments.......................................................................................    -60-
26.      Miscellaneous.....................................................................................    -60-
27.      Submission To Jurisdiction; Waivers...............................................................    -60-
28.      Expansion Notes...................................................................................    -61-
29.      Waivers of Jury Trial.............................................................................    -62-
</TABLE>

                                     -iv-
<PAGE>

SCHEDULE A          Purchaser Information

SCHEDULE B          Disclosure Schedule

EXHIBIT A           Form of Increasing Rate Notes Series A due 2012

EXHIBIT B           Form of Increasing Rate Notes Series B due 2012

EXHIBIT C           Form of Opinion of Counsel to the Company

EXHIBIT D           Form of Security Agreement

                                      -v-
<PAGE>

                              TeleCorp PCS, Inc.
                            1101 17th Street, N.W.
                            Washington, D.C. 20050


        Increasing Rate Subordinated Notes Series A due January 1, 2012
        Increasing Rate Subordinated Notes Series B due January 1, 2012

                                                                    May 11, 1998


Lucent Technologies Inc.
600 Mountain Avenue
Murray Hill, New Jersey  07974

Ladies and Gentlemen:

          TeleCorp PCS, Inc., a Delaware corporation (the "Company"), and its
Subsidiaries intend to develop personal communications services ("PCS") Systems
serving portions of the Boston, Massachusetts, Little Rock, Arkansas, St. Louis,
Missouri, Houston, Texas, New Orleans, Louisiana, Louisville, Kentucky and
Memphis, Tennessee MTAs (the "Designated Areas"), as well as additional MTAs and
BTAs from time to time designated by the Company.  The Company has entered into
a Vendor Procurement Contract (as amended, modified or supplemented from time to
time, the "Procurement Contract") dated as of the date hereof between the
Company and you (in such capacity, the "Vendor") pursuant to which the Company
shall purchase and the Vendor shall provide certain telecommunications systems
and services for the development of the Company's PCS Systems in the Designated
Areas all on the terms and conditions therein set forth.

          The Company intends to finance a portion of the development costs of
such PCS Systems and certain working capital requirements by (a) issuing two
series of increasing rate subordinated notes, (b) obtaining from the Cash Equity
Investors on or prior to the Initial Series A Closing Date equity contributions
in an amount not less than $25,000,000 and thereafter prior to or concurrent
with any Series A Closing Date obtaining additional equity contributions which,
together with amounts previously funded, shall be in an aggregate amount of
$40,000,000 which contributions shall be refunded under the Securities Purchase
Agreement, (c) obtaining from the Cash Equity Investors on or prior to the third
annual anniversary of the initial closing under the

<PAGE>

Securities Purchase Agreements at least $88,000,000 of additional cash equity
(to be provided in cash or by contribution of securities of the Company and the
reissuance of such securities by the Company to third parties), (d) entering
into the Credit Agreement on or prior to the Initial Series B Closing Date
pursuant to which the lenders party thereto shall commit to provide loans in an
aggregate principal amount of up to $500,000,000 and (e) issuing one or more
series of High Yield Debt (collectively, the transactions contemplated under the
Procurement Contract and the financings contemplated by this paragraph are
referred to as the "Financing Transactions").

          Certain capitalized terms used in this Agreement are defined in
section 15; references to a "Schedule" or an "Exhibit" are, unless otherwise
specified, to a Schedule or an Exhibit attached to this Agreement.

          The Company hereby agrees with you as follows:

          1.  Authorization of Notes.  The Company will authorize the issue
              ----------------------
and sale of  (a) its Increasing Rate Subordinated Notes Series A due January 1,
2012 in an initial aggregate principal amount not to exceed $40,000,000 (the
"Series A Notes"; such term to include any notes issued in substitution therefor
pursuant to section 23.7 and any Additional Series A Notes), and to be
substantially in the form of Exhibit A, and (b) its Increasing Rate Subordinated
Notes Series B due January 1, 2012 in an initial aggregate principal amount not
to exceed $40,000,000 (the "Series B Notes"; such term to include any notes
issued in substitution therefor pursuant to section 23.7 and any Additional
Series B Notes), and to be substantially in the form of Exhibit B, in each case,
with such changes therefrom, if any, as may be approved by you and the Company.
The Series A Notes and Series B Notes are collectively referred to as the
"Notes"; the Additional Series A Notes and Additional Series B Notes are
collectively referred to as the "Additional Notes."

          2.  Sale and Purchase of Notes.
              --------------------------

          2.1 Sale of Series A Notes.  From time to time commencing on the
              ----------------------
Initial Series A Closing Date and ending on the Series A Note Commitment
Termination Date, the Company will issue and sell to you and, subject to the
terms and conditions of this Agreement, you will purchase from the Company,
Series A Notes in an aggregate initial principal amount not to exceed the Series
A Note Commitment.

          2.2 Sale of Series B Notes.  From time to time commencing on the
              ----------------------
Initial Series B Closing Date and ending on the Series B Note Commitment
Termination Date, the Company will issue and sell to you and, subject to the
terms and conditions of this Agreement, you will purchase from the Company,
Series B Notes in an aggregate initial principal amount not to exceed the Series
B Note Commitment.

                                      -2-
<PAGE>

          3.   Closings; Fees.
               --------------

          3.1  Series A Closings.  (a)  The initial sale of the Series A Notes
               -----------------
to be purchased by you shall take place at the offices of Sidley & Austin, 875
Third Avenue, New York, New York 10022, at 10:00 a.m., New York City time, at a
closing (the "Initial Series A Closing") on May 29, 1998 or on such other
Business Day thereafter as may be agreed upon by the Company and you (the
"Initial Series A Closing Date").  At the Initial Series A Closing, the Company
will deliver to you the Series A Notes to be purchased by you (which amount
shall be specified by the Company to you in a notice delivered not less than two
Business Days prior to the Initial Series A Closing Date) in the form of a
single Series A Note (or such greater number of Series A Notes in denominations
of at least $100,000 as you may request in a notice to the Company not less than
one Business Day prior to the Series A Initial Closing Date) dated the Initial
Series A Closing Date and registered in your name (or in the name of your
nominee).

          (b)  From time to time after the Initial Series A Closing Date but
prior to the Series A Note Commitment Termination Date, the Company may issue to
you, in accordance with the terms of this Agreement, additional Series A Notes
(each, a "Series A Closing").  The Company shall deliver a notice to you setting
forth the principal amount of the Series A Notes to be issued (which shall be in
an amount equal to the lesser of (i) $5,000,000 or an integral multiple of
$1,000,000 in excess thereof and (ii) the remaining amount of the Series A Note
Commitment) and stating the date (which shall be not less than five Business
Days after the date of such notice) on which the Company desires that you
purchase such Series A Notes (each, a "Series A Closing Date").  At each Series
A Closing, the Company will deliver to you the Series A Notes to be purchased by
you in the form of a single Series A Note (or such greater number of Series A
Notes in denominations of at least $100,000 as you may request not less than two
Business Days prior to such Series A Closing Date) dated the date of such Series
A Closing and registered in your name (or in the name of your nominee).

          3.2  Series B Closings.  (a) The initial sale of the Series B Notes
               -----------------
to be purchased by you shall take place at a closing (the "Initial Series B
Closing") on the Initial Series B Closing Date at such time during the Series B
Availability Period and at such location as the Company and you may agree.  At
the Initial Series B Closing, the Company will deliver to you the Series B Notes
to be purchased by you (which amount shall be specified by the Company to you in
a notice delivered not less than five Business Days prior to such Initial Series
B Closing Date) in the form of a single Series B Note (or such greater number of
Series B Notes in denominations of at least $100,000 as you may request at least
one Business Day prior to the Initial Series B Closing Date) dated the Initial
Series B Closing Date and registered in your name (or in the name of your
nominee).

          (b)  From time to time after the Initial Series B Closing Date but
prior to the Series B Note Commitment Termination Date, the Company may issue to
you, in accordance

                                      -3-
<PAGE>

with the terms of this Agreement, additional Series B Notes (each, a "Series B
Closing"). The Company shall deliver a notice to you setting forth the principal
amount of the Series B Notes to be issued (which shall be in an amount equal to
the lesser of (i) $5,000,000 or an integral multiple of $1,000,000 in excess
thereof and (ii) the remaining amount of the Series B Note Commitment) and
stating the date (which shall be not less than five Business Days after the date
of such notice) on which the Company desires that you purchase such Series B
Notes (each, a "Series B Closing Date"). At each Series B Closing, the Company
will deliver to you the Series B Notes to be purchased by you in the form of a
single Series B Note (or such greater number of Series B Notes in denominations
of at least $100,000 as you may request not less than two Business Days prior to
such Series B Closing Date) dated the date of such Series B Closing and
registered in your name (or in the name of your nominee).

          3.3  Payments.  (a) Payment for each of the Notes issued on or prior
               --------
to the closing under the Credit Agreement and the drawing thereunder of loans in
an aggregate principal amount of not less than $75,000,000 shall be in
immediately available funds or, if the Company so elects, by notice to you not
less than three Business Days prior to the Closing in respect of such Notes, by
means of a credit against amounts due to the Vendor under the Procurement
Contract; provided that, if  the Company elects to credit amounts under the
          --------
Procurement Contract, (i) you shall specify by notice to the Company one
Business Day prior to such Closing which invoices will be so credited and (ii)
on the date of such Closing, you shall deliver copies of such invoices marked
"paid" against presentation of the Notes to be delivered by the Company.

               (b)  Payment for each of the Notes issued after the closing under
the Credit Agreement and the drawing thereunder of loans in an aggregate
principal amount of not less than $75,000,000 shall be in immediately available
funds or, if you elect, by notice to the Company not less than three Business
Days prior to the Closing in respect of such Notes, by means of a credit against
amounts due to the Vendor under the Procurement Contract; provided that, if you
                                                          --------
elect to credit amounts under the Procurement Contract (i) you shall specify by
notice to the Company one Business Day prior to such Closing which invoices will
be so credited and (ii) on the date of such Closing, you shall deliver copies of
such invoices marked "paid" against presentation of the Notes to be delivered by
the Company.

          3.4  Legal Fees.  On the date of the Initial Series A Closing, the
               ----------
Company will pay the reasonable fees and disbursements of your special counsel
(with evidence of time recorded as your special counsel may customarily provide)
in connection with the transactions contemplated by this Agreement and
thereafter the Company will promptly pay additional reasonable fees and
disbursements of such special counsel, incurred in connection with such
transactions.

          4.   Terms of the Series A Notes and Series B Notes.
               ----------------------------------------------

                                      -4-
<PAGE>

          4.1  Scheduled Payment of Notes.  The Company shall pay in full the
               --------------------------
outstanding aggregate principal amount of the Series A Notes, together with any
accrued interest and other amounts with respect to such Notes no later than the
Series A Final Maturity Date.  The Company shall pay in full the outstanding
aggregate principal amount of the Series B Notes, together with any accrued
interest and other amounts with respect to such Notes no later than the Series B
Final Maturity Date.

          4.2  Interest on Series A Notes.  The Series A Notes shall bear
               --------------------------
interest at an initial rate of 8.50% per annum; provided that if the Company
                                                --------
does not redeem all (but not less than all) the Series A Notes on or prior to
January 1, 2001, such initial rate shall increase on each January 1, beginning
January 1, 2001 and continuing thereafter, by an amount equal to 1.50% per annum
or such lesser amount as will result in the Series A Notes bearing interest at
the Maximum Rate (the "Series A Coupon Rate").  Interest on the Series A Notes
shall be paid in arrears in cash on each six-month and yearly anniversary of the
Initial Series A Closing Date (each, a "Series A Payment Date"), commencing with
the date of initial issuance; provided, that (i) interest payable on the Series
                              --------
A Notes on or prior to May 11, 2004 shall be payable in Additional Series A
Notes and (ii) thereafter at any time that payment of interest on the Series A
Notes in cash shall be prohibited under the terms of the Credit Agreement or the
High Yield Debt of the Company interest on the Series A Notes shall be payable
in Additional Series A Notes.  Any principal payments on the Series A Notes not
paid when due and, to the extent permitted by applicable law, any interest
payment on the Series A Notes not paid when due, in each case whether at stated
maturity, by notice of prepayment, by acceleration or otherwise, shall
thereafter bear interest payable upon demand at a rate which is 2.00% per annum
in excess of the rate of interest otherwise payable under this Agreement for the
Series A Notes.  Interest on the Series A Notes shall be computed on the basis
of a 360-day year and twelve 30-day months.  In computing interest on the Series
A Notes, the date of the making of the Series A Notes shall be included and the
date of payment shall be excluded.

          4.3  Interest on Series B Notes.  The Series B Notes shall bear
               --------------------------
interest at an initial rate of 10.00% per annum; provided that if the Company
                                                 --------
does not redeem all (but not less than all) the Series B Notes on or prior to
January 1, 2000, such initial rate shall increase on each January 1 beginning
January 1, 2000 and continuing thereafter by an amount equal to 1.50% per annum
or such lesser amount as will result in the Series B Notes bearing interest at
the Maximum Rate (the "Series B Coupon Rate"). Interest on the Series B Notes
shall be paid in arrears in cash on each six-month and yearly anniversary of the
Initial Series B Closing Date (each, a "Series B Payment Date"), commencing with
the date of initial issuance; provided, that (i) interest payable on the Series
                              --------
B Notes on or prior to May 11, 2004 shall be payable in Additional Series B
Notes and (ii) thereafter at any time that payment of interest on the Series B
Notes in cash shall be prohibited under the terms of the Credit Agreement or the
High Yield Debt of the Company interest on the Series B Notes shall be payable
in Additional Series B Notes.  Any principal

                                      -5-
<PAGE>

payments on the Series B Notes not paid when due and, to the extent permitted by
applicable law, any interest payment on the Series B Notes not paid when due, in
each case whether at stated maturity, by notice of prepayment, by acceleration
or otherwise, shall thereafter bear interest payable upon demand at a rate which
is 2.00% per annum in excess of the rate of interest otherwise payable under
this Agreement for the Series B Notes. Interest on the Series B Notes shall be
computed on the basis of a 360-day year and twelve 30-day months. In computing
interest on the Series B Notes, the date of the making of the Series B Notes
shall be included and the date of payment shall be excluded.

          5.   Conditions to Closing.
               ---------------------

          5.1  Initial Series A Closing.  Your obligation to purchase and pay
               ------------------------
for the Series A Notes to be sold to you at the Initial Series A Closing is
subject to the fulfillment to your satisfaction, prior to or concurrently with
such Closing, of the following conditions:

          (a)  Representations and Warranties.  The representations and
               ------------------------------
warranties of the Company contained in this Agreement (other than the
representations and warranties contained in sections 6.25 and 6.26 which shall
be effective as of the closing of the transactions under the Credit Agreement)
which are not qualified by Material Adverse Effect shall be correct in all
material respects when made and at the time of such Closing and the
representations and warranties contained in this Agreement that are qualified by
Material Adverse Effect shall be correct when made and at the time of such
Closing.

          (b)  Performance; No Default.  The Company shall have performed and
               -----------------------
complied in all material respects with all agreements and conditions contained
in this Agreement required to be performed or complied with by it prior to or at
such Closing and, at the time of the Initial Series A Closing, no Event of
Default or Potential Event of Default shall have occurred and be continuing.

          (c)  Compliance Certificate.  The Company shall have delivered to you
               ----------------------
an Officers' Certificate, dated the Initial Series A Closing Date, certifying
that the conditions specified in paragraphs (a) and (b) of this section 5.1 have
been fulfilled.

          (d)  Delivery of Notes.  The Company shall have delivered to you the
               -----------------
Series A Notes to be purchased by you at such Closing, which shall be duly
authorized, executed and delivered and shall be in such denominations as you
shall previously have requested pursuant to section 3.

          (e)  Opinions of Counsel.  You shall have received from McDermott,
               -------------------
Will & Emery, counsel for the Company, favorable opinions substantially in the
forms set forth in

                                      -6-
<PAGE>

Exhibit C and covering such matters as you may request, each addressed to you,
dated the Initial Series A Closing Date and satisfactory in substance and form
to you.

          (f)  Security Interest.  The Company shall have entered into the
               -----------------
Security Agreement.  You shall have received a valid perfected first security
interest in and lien upon all equipment (and the proceeds therefrom) provided by
the Vendor to the Company under the Procurement Contract (including any
equipment (and the proceeds therefrom) to be provided after such Closing.

          (g)  Procurement Contract.  The Company shall have executed and
               --------------------
delivered the Procurement Contract.  The Procurement Contract shall be a legal,
valid and binding obligation of the Company enforceable in accordance with its
terms, subject to applicable bankruptcy, insolvency, reorganization or similar
laws affecting the enforcement of creditor's rights generally and to general
equitable principles (whether enforcement is sought by proceedings in equity or
at law), shall be in full force and effect and no default or breach by the
Company shall have occurred thereunder and be continuing.

          (h)  Consents, Agreements.  The Company shall have obtained all
               --------------------
consents and waivers under any term of any agreement or instrument to which it
is a party or by which it or any of its properties or assets are bound, or any
term of any applicable law, ordinance, rule or regulation of any Governmental
Authority or any term of any applicable order, judgment or decree of any court,
arbitrator or Governmental Authority, necessary or appropriate in connection
with this Agreement, the Securities Purchase Agreement and the Procurement
Contract, and such consents and waivers shall be in full force and effect on the
Initial Series A Closing Date.  A complete and correct copy of each such consent
and waiver shall have been delivered to you.

          (i)  Compliance with Securities Laws.  The offering and sale of the
               -------------------------------
Notes (including any Notes to be issued after the Initial Series A Closing Date)
to you shall have complied with all applicable requirements of federal and state
securities laws and you shall have received evidence thereof in form and
substance satisfactory to you.

          (j)  No Adverse U.S. Legislation, Action or Decision, etc.  No
               -----------------------------------------------------
legislation shall have been enacted by either house of Congress or favorably
reported by any committee thereof, no formal published action shall have been
taken by any United States Governmental Authority, whether by order, regulation,
rule, ruling or otherwise, and no decision shall have been rendered by any court
of competent jurisdiction in the United States, which would materially and
adversely affect the Notes being purchased by you hereunder.

          (k)  No Actions Pending.  There shall be no suit, action,
               ------------------
investigation, inquiry or other proceeding by or before any Governmental
Authority or any other Person or any other legal or administrative proceeding,
pending or, to the Company's knowledge, threatened, which

                                      -7-
<PAGE>

questions the validity or legality of the Financing Transactions or the payment,
prepayment, administration, sale or other disposition of the Notes or
performance by the Company of its obligations under this Agreement and the
Security Agreement and seeks damages or injunctive or other equitable relief in
connection therewith.

          (l)  Purchase Permitted By Applicable Law, etc.  On the Initial Series
               ------------------------------------------
A Closing Date, your purchase of Series A Notes (i) shall be permitted by the
laws and regulations of each jurisdiction to which you are subject and (ii)
shall not subject you to any tax (other than taxes based on net income) or
penalty.

          (m)  Proceedings and Documents.  All corporate and other proceedings
               -------------------------
in connection with the transactions contemplated by this Agreement and all
documents and instruments incident to such transactions shall be satisfactory to
you and your special counsel, and you and your special counsel shall have
received all such counterpart originals or certified or other copies of such
documents as you or they may reasonably request.

          (n)  Fees.  The fees required to be paid on the Initial Series A
               ----
Closing Date under section 3.4 shall have been paid.

          (o)  Securities Purchase Agreement.  The Company shall have delivered
               -----------------------------
to you a certified copy of the Securities Purchase Agreement (together with all
schedules and exhibits thereto), which Agreement shall be the legal, valid and
binding obligation of each party thereto enforceable in accordance with its
terms, subject to applicable bankruptcy, insolvency, reorganization or similar
laws affecting the enforcement of creditor's rights generally and to general
equitable principles (whether enforcement is sought by proceedings in equity or
at law), shall be in full force and effect and no breach or default thereunder
shall have occurred which is continuing.  The Company shall have received on or
before the Initial Series A Closing Date not less than $25,000,000 of equity
from the Cash Equity Investors on terms and conditions reasonably satisfactory
to you.

          (p)  Senior Lender Commitment.  The Company and its Subsidiaries shall
               ------------------------
have delivered to you a certified copy of the Commitment Letter dated January
22, 1998 (the "Commitment Letter") from The Chase Manhattan Bank (the "Senior
Lender") pursuant to which such Senior Lender shall have agreed to provide debt
financing in an aggregate principal amount of not less than $435,000,000 on
terms not less favorable to the Company than the "TeleCorp PCS, Inc. Senior
Secured Credit Facilities Summary of Principal Terms and Conditions" appended as
Exhibit A to such letter (the "Principal Terms and Conditions"); such Commitment
Letter (including such Principal Terms and Conditions) shall not have been
revoked, amended or modified and shall be in full force and effect.

                                      -8-
<PAGE>

          (q)  Commitment for Minimum Purchase.  The Company shall have entered
               -------------------------------
into the Procurement Contract, which shall be the legal, valid and binding
obligation of the Company enforceable in accordance with its terms, subject to
applicable bankruptcy, insolvency, reorganization or similar laws affecting the
enforcement of creditor's rights generally and to general equitable principles
(whether enforcement is sought by proceedings in equity or at law), shall be in
full force and effect and no breach or default thereunder shall have occurred
which is continuing.  Pursuant to the Procurement Agreement, the Company shall
have irrevocably committed to purchase from the Vendor one mobile switching
center and fifty base stations for each of the following Designated Areas:
Memphis, Tennessee; Little Rock, Arkansas; New Orleans, Louisiana and Boston,
Massachusetts.

          (r)  Additional Matters.  All corporate and other proceedings, and all
               ------------------
documents, instruments, and other legal matters in connection with the
transactions contemplated by this Agreement and the Financing Transactions (to
the extent the agreements evidencing such Financing Transactions have been or
are required to have been completed as of the date of such Closing) shall be
satisfactory to you in form and substance and you shall have received any other
documents, instruments and legal opinions in respect of any aspect or
consequence of the transactions contemplated hereby or thereby as you may
reasonably request.

          5.2  Initial Series B Closing.  Your obligation to purchase and pay
               ------------------------
for the Series B Notes to be sold to you at the Initial Series B Closing is
subject to the fulfillment to your satisfaction, prior to or concurrently with
such Closing, of the following conditions:

          (a)  Representations and Warranties:  The representations and
               ------------------------------
warranties of the Company contained in this Agreement which are not qualified by
Material Adverse Effect shall be correct in all material respects when made and
at the time of such Closing and the representations and warranties of the
Company contained in this Agreement that are qualified by Material Adverse
Effect shall be correct when made and at the time of such Closing other than the
representations and warranties contained in section 6.24, which shall cease to
be effective on the date the Company consummates the transactions contemplated
under the Credit Agreement.

          (b)  No Default.  No Potential Default or Event of Default shall have
               ----------
occurred and be continuing on such date or after giving effect to the issuance
of the Series B Notes to be issued on such date.

          (c)  Compliance Certificate.  The Company shall have delivered to you
               ----------------------
an Officers' Certificates, dated the date of such Closing, certifying that the
conditions specified in paragraphs (a) and (b) of this section 5.2 have been
fulfilled.

          (d)  Delivery of Notes.  The Company shall have delivered to you the
               -----------------
Series B Notes to be purchased by you at such Closing, which shall be duly
authorized, executed and

                                      -9-
<PAGE>

delivered and shall be in such denominations as you shall have previously
requested pursuant to section 3.

          (e)  Satisfaction of Conditions to Initial Series A Closing.  Each of
               ------------------------------------------------------
the conditions set forth in section 5.1 shall have been satisfied at and as of
the Initial Series B Closing Date, except that the Security Agreement and any
financing statement filed in connection therewith shall have been terminated and
the security interests created thereunder released if the Company shall have
consummated the transactions contemplated under the Securities Purchase
Agreement and the Credit Agreement and prior to or concurrent with such release,
the Extended Payment Term Facility shall have been repaid in full in compliance
with paragraph (g).

          (f)  Securities Purchase Agreement.  The Transactions (as defined in
               -----------------------------
the Securities Purchase Agreement) to be completed at or prior to the closing of
the Securities Purchase Agreement under Article II and Article III of such
Agreement including (i) the contribution by each Cash Equity Investor of its
Initial Cash Contributions and its irrevocable commitment to contribute an
amount equal to its Aggregate Commitment (each as defined in the Securities
Purchase Agreement), (ii) the contribution by AT&T and TWR of the Contributed
Licenses (as defined in the Securities Purchase Agreement), (iii) the sale by
AT&T to the Company of the Purchased Licenses (as defined in the Securities
Purchase Agreement) and (iv) the actions under the Related Agreements as in
effect on the date of such closing shall have been completed and each of the
Securities Purchase Agreement and the Related Agreements shall be the legal,
valid and binding obligation of each party thereto enforceable in accordance
with its terms, subject to applicable bankruptcy, insolvency, reorganization or
similar laws affecting the enforcement of creditor's rights generally and to
general equitable principles (whether enforcement is sought by proceedings in
equity or at law), shall be in full force and effect and no breach or default
thereunder shall have occurred which is continuing.

          (g)  Extended Payment Terms.  Prior thereto or concurrent with the
               ----------------------
issuance of the Series B Notes, the Company shall have paid in full all amounts
owing to the Vendor under the Extended Payment Terms Facility using funds other
than the proceeds of the Series B Notes.

          (h)  Disclosure Schedule.  If necessary, the Company shall have
               -------------------
delivered to you a revised section 6.8(b) setting forth the capitalization of
each Subsidiary of the Company, section 6.9 of the Disclosure Schedule setting
forth the Debt of the Company and its Subsidiaries outstanding, or for which the
Company has any commitments on such Closing Date, and section 6.23 setting forth
the identity of each Subsidiary of the Company other than TeleCorp PCS, LLC and
TeleCorp Holdings.

          (i)  Additional Matters.  All corporate and other proceedings, and all
               ------------------
documents, instruments and other legal matters in connection with the
transactions contemplated

                                     -10-
<PAGE>

by this Agreement and the Financing Transactions (to the extent the agreements
evidencing such Financing Transactions have been or are required to have been
completed as of the date of such Closing) shall be satisfactory to you in form
and substance and you shall have received any other documents, instruments and
legal opinions in respect of any aspect or consequence of the transactions
contemplated hereby or thereby as you may reasonably request.

          5.3  Conditions to Series A Closings and Series B Closings:  Your
               -----------------------------------------------------
obligation to purchase and pay for any Notes to be sold to you at any Closing
(other than the Initial Series A Closing and the Initial Series B Closing) is
subject to the fulfillment to your satisfaction, prior to or concurrently with
such Closing, of the following conditions:

          (a)  Representations and Warranties:  The representations and
               ------------------------------
warranties of the Company contained in this Agreement which are not qualified by
Material Adverse Effect shall be correct in all material respects when made and
at the time of such Closing and the representations and warranties of the
Company contained in this Agreement that are qualified by Material Adverse
Effect shall be correct when made and at the time of such Closing other than (i)
the representations and warranties contained in section 6.24, which shall cease
to be effective on the date the Company consummates the transactions
contemplated under the Credit Agreement, and (ii) the representations and
warranties contained in sections 6.25 and 6.26, which shall commence to be
effective on any Closing which occurs on or after the closing of the
transactions under the Credit Agreement.

          (b)  No Default.  No Potential Default or Event of Default shall have
               ----------
occurred and be continuing on such date or after giving effect to the issuance
of the Notes to be issued on such date.

          (c)  Compliance Certificate.  The Company shall have delivered to you
               ----------------------
an Officers' Certificates, dated the date of such Closing, certifying that the
conditions specified in paragraphs (a) and (b) of this section 5.3 have been
fulfilled.

          (d)  Delivery of Notes.  The Company shall have delivered to you the
               -----------------
Notes to be purchased by you at such Closing, which shall be duly authorized,
executed and delivered and shall be in such denominations as you shall have
previously requested pursuant to section 3.

          (e)  Disclosure Schedule.  If necessary, the Company shall have
               -------------------
delivered to you a revised section 6.8(b) setting forth the capitalization of
each subsidiary of the Company, section 6.9 of the Disclosure Schedule setting
forth the Debt of the Company and its Subsidiaries outstanding, or for which the
Company has any commitments on such Closing Date, and section 6.23 setting forth
the identity of each Subsidiary of the Company other than TeleCorp PCS, LLC and
TeleCorp Holdings.

                                     -11-
<PAGE>

          (f)  Additional Matters.  All corporate and other proceedings, and all
               ------------------
documents, instruments, and other legal matters in connection with the
transactions contemplated by this Agreement and the Financing Transactions (to
the extent the agreements evidencing such Financing Transactions have been or
are required to have been completed as of the date of such Closing) shall be
reasonably satisfactory to you in form and substance and you shall have received
any other documents, instruments and legal opinions in respect of any aspect or
consequence of the transactions contemplated hereby or thereby as you may
reasonably request.

          6.   Representations and Warranties, etc.  The Company represents and
               ------------------------------------
warrants as follows; provided that (i) the representations and warranties
                     --------
contained in section 6.24 shall cease to be effective on the date the Company
consummates the transactions contemplated under the Credit Agreement and (ii)
the representations and warranties contained in sections 6.25 and 6.26 shall be
made commencing on the closing of the transactions under the Credit Agreement.

          6.1  Organization, Standing, etc.  Each of the Company and its
               ----------------------------
Subsidiaries is a corporation or limited liability company duly organized,
validly existing and in good standing under the laws of the jurisdiction of its
formation and has all requisite corporate power and authority to own, lease and
operate its properties, to carry on its business as now conducted and as
proposed to be conducted following the Financing Transactions.  The Company has
all requisite corporate power and authority to enter into this Agreement, to
issue and sell the Notes and to carry out the transactions contemplated by this
Agreement and the Financing Transactions.

          6.2  Authorization; Enforceability.  The Company has taken all
               -----------------------------
necessary corporate action to execute, deliver and perform this Agreement, the
Security Agreement and the Notes and has validly executed and delivered each of
such documents.  Each of this Agreement and the Security Agreement constitutes,
and each of the Notes and any other documents upon execution and delivery will
                                                         -
constitute, the legal, valid and binding obligation of the Company, enforceable
against the Company in accordance with its terms except as enforceability may be
limited by bankruptcy, insolvency, reorganization, moratorium or other similar
laws affecting creditors' rights generally or general equitable principles or
principles of good faith and fair dealing.

          6.3  Qualification.  Each of the Company and its Subsidiaries is,
               -------------
and after giving effect to the Financing Transactions will be, duly qualified
and in good standing as a foreign corporation authorized to do business in each
jurisdiction (other than the jurisdiction of its incorporation) in which the
nature of its activities or the character of the properties it owns or leases
makes such qualification necessary, except where the failure so to qualify would
not have a Material Adverse Effect.

                                     -12-
<PAGE>

          6.4 Financial Statements.  (a)  The Company has delivered to you
               --------------------
complete and correct copies of the unaudited consolidated balance sheet of the
Company and its Subsidiaries dated as of March 31, 1998, and the related
statements of income, stockholders' equity and cash flows for the three month
period then ended (the "Financial Statements").  The Financial Statements have
been prepared in accordance with GAAP, applied on a consistent basis throughout
the periods specified, and present fairly in all material respects the financial
position of the Company and its Subsidiaries as of the respective dates
specified and the consolidated results of their operations and changes in
financial position for the respective periods specified subject to normal year-
end adjustments and footnote disclosure.

          (b)  The forecast of the Company and its Subsidiaries contained in the
business plan entitled "TeleCorp PCS Bank Plan" dated May 5, 1998 for the period
commencing January 1, 1998 to and including December 31, 2007, prepared by a
Responsible Officer of the Company presented on a consolidated basis has been
prepared in good faith and utilizing reasonable assumptions; provided that
                                                             --------
nothing contained therein shall be deemed a representation that the results set
forth in such Plan will be achieved.

          6.5  Changes, etc.  Except as set forth in section 6.5 of the
               -------------
Disclosure Schedule, since December 31, 1997, (a) there has been no change in
the assets, liabilities or financial condition of the Company and its
Subsidiaries, other than changes which have not been, in any case or in the
aggregate, materially adverse to any of them, and (b) other than TeleCorp
Holdings, neither the business, operations or affairs nor any of the properties
or assets of the Company or its Subsidiaries has been affected by any occurrence
or development (whether or not insured against) which has been, either in any
case or in the aggregate, materially adverse to any of them.

          6.6  Compliance with Other Instruments, etc.  Neither the Company
               ---------------------------------------
nor any Subsidiary is, and, after giving effect to the Financing Transactions,
neither the Company nor any Subsidiary will be, in violation of its certificate
of incorporation or by-laws.  Neither the Company nor any Subsidiary is, and,
after giving effect to the Financing Transactions, neither the Company nor any
Subsidiary will be, in material violation of any term of any agreement or
instrument to which it is a party or by which it or any of its properties or
assets is bound, or any term of any applicable law, ordinance, rule or
regulation of any Governmental Authority or any term of any applicable order,
judgment or decree of any court, arbitrator or Governmental Authority, the
consequences of any which violation (or all such violations in the aggregate)
would reasonably be expected to have a Material Adverse Effect; and the
execution, delivery and performance of this Agreement, the Notes and the
Security Agreement will not result in any material violation of or be in
material conflict with or constitute a default under any such term or result in
the creation of (or impose any obligation on the Company to create) any Lien
upon any of the properties or assets of the Company pursuant to any such term.

                                     -13-
<PAGE>

          6.7  Governmental Consents, etc.  No consent, approval or
               ---------------------------
authorization of, or declaration or filing with, any Governmental Authority on
the part of any of the Company or any of its Subsidiaries is required for the
valid execution and delivery of this Agreement or the consummation of the
transactions contemplated hereby or the valid offer, issue, sale and delivery of
the Notes, other than those which have been obtained or made and are
unconditional and in full force and effect.

          6.8  Capital Stock and Related Matters.
               ---------------------------------

          (a)  The authorized Capital Stock of the Company is as set forth in
section 6.8 of the Disclosure Schedule.  Except in each case as specified
therein, the Company does not have outstanding securities convertible into or
exchangeable for any shares of its Capital Stock, nor will it have outstanding
any rights to subscribe for or to purchase, or any options for the purchase of,
or any agreements providing for the issuance (contingent or otherwise) of, or
any calls, commitments or claims of any character relating to, any shares of its
Capital Stock or any securities convertible into or exchangeable for any shares
of its Capital Stock.

          (b)  The authorized Capital Stock of each Subsidiary of the Company,
and the number of shares issued and outstanding, is as set forth in section 6.8
of the Disclosure Schedule.  Except as set forth in section 6.8 of the
Disclosure Schedule, no Subsidiary of the Company has any outstanding securities
convertible into or exchangeable for any shares of its Capital Stock, nor will
it have outstanding any rights to subscribe for or to purchase, or any options
for the purchase of, or any agreements providing for the issuance (contingent or
otherwise) of, or any calls, commitments or claims of any character relating to,
any shares of its Capital Stock or any securities convertible into or
exchangeable for any shares of its Capital Stock.

          (c)  The Company is not subject to any obligation (contingent or
otherwise) to repurchase or otherwise to acquire or retire any shares of its
Capital Stock.  The Company is not required to file, nor has it filed, pursuant
to Section 12 or Section 14(d) of the Exchange Act, a registration statement
relating to any class of its debt or equity securities.

          6.9  Debt.  Section 6.9 of the Disclosure Schedule (as revised, if
               ----
necessary pursuant to section 5.2(j)) correctly describes all Debt of the
Company and its Subsidiaries outstanding, or for which the Company or any
Subsidiary has commitments on the date hereof and all Debt of the Company and
its Subsidiaries to be outstanding, or for which the Company or any Subsidiary
will have commitments, on the Initial Series A Closing Date and the Initial
Series B Closing Date, in each case, after giving effect to the Financing
Transactions.

          6.10 Title to Properties; Liens.  Each of the Company and its
               --------------------------
Subsidiaries has good and marketable title to all its material owned properties
and assets, and none of such properties or assets will be subject to any Liens
other than the Liens in favor of the

                                     -14-
<PAGE>

administrative or lead agent under the Credit Agreement for the benefit of the
Lenders thereunder and other Liens permitted under the Credit Agreement
including any Liens as to which the Lenders under the Credit Agreement shall
have granted their consent or waived any objection and other Liens which could
not reasonably be expected to have a Material Adverse Effect. On each Closing
Date and after giving effect to the Financing Transactions, each of the Company
and its Subsidiaries will enjoy peaceful and undisturbed possession under all
leases necessary for the operation of its business, and all such leases will be
valid and subsisting and will be in full force and effect except where such
failure could not reasonably be expected to have a Material Adverse Effect. No
Lien currently exists which would require the Company to equitably and ratably
secure the Obligations hereunder and under the Notes pursuant to section 11.3.

          6.11 Litigation.  Except as set forth in section 6.11 to the
               ----------
Disclosure Schedule, there is no action, proceeding or investigation pending or,
to the knowledge of the Company, threatened which questions the validity or
legality of the Financing Transactions or this Agreement, the Notes or the
Security Agreement, or any action taken or to be taken pursuant to this
Agreement, the Notes or the Security Agreement or which would reasonably be
expected to have a Material Adverse Effect.

          6.12 Patents, Trademarks, Authorizations, etc.  Each of the Company
               ----------------------------------------
and its Subsidiaries owns or is licensed to use all patents, trademarks, service
marks, trade names, copyrights, technology, know-how and processes necessary for
the conduct of its business, without any known conflict with the rights of
others except to the extent that the failure to be in compliance could not
reasonably be expected to have a Material Adverse Effect.  Upon the closing of
the transactions under the Securities Purchase Agreement and the Related
Agreements, the Company will be licensed to market under the AT&T brand name and
to use the trademarks, service marks, logo and trade dress licensed thereunder
for a period of not less than five years.

          6.13 Requirements of Law.  Each of the Company and its Subsidiaries
               -------------------
is in compliance with all Requirements of Law applicable to it and its business,
except to the extent that the failure to be in compliance could not reasonably
be expected to have a Material Adverse Effect.

          6.14 Federal Reserve Regulations.  The Company will not use any of
               ---------------------------
the proceeds of the sale of the Notes for the purpose, whether immediate,
incidental or ultimate, of buying a "margin stock" or of maintaining, reducing
or retiring any indebtedness originally incurred to purchase a stock that is
currently a "margin stock", or for any other purpose which might constitute this
transaction a "purpose credit", in each case, within the meaning of Regulation G
of the Board of Governors of the Federal Reserve System (12 C.F.R. 207, as
amended) or Regulation U of such Board (12 C.F.R. 221, as amended), or otherwise
take or permit to be taken any action which would involve a violation of such
Regulation G or Regulation U or of Regulation T (12 C.F.R. 220, as amended) or
Regulation X (12 C.F.R. 224,

                                     -15-
<PAGE>

as amended) or any other regulation of such Board. No Debt of the Company or any
Subsidiary being reduced or retired out of the proceeds of the sale of the Notes
was incurred for the purpose of purchasing or carrying any such "margin stock"
and neither the Company nor any Subsidiary owns or has any present intention of
acquiring any such "margin stock".

          6.15  Status Under Certain Federal Statutes.  Neither the Company
                -------------------------------------
nor any Subsidiary is, and after giving effect to the Financing Transactions
none of them will be, (a) an "investment company", or a company "controlled" by
an "investment company", within the meaning of the Investment Company Act of
1940, as amended; (b) a "holding company" or a "subsidiary company" of a
"holding company", or an "affiliate" of a "holding company" or of a "subsidiary
company" of a "holding company", as such terms are defined in the Public Utility
Holding Company Act of 1935, as amended; (c) a "public utility", as such term is
defined in the Federal Power Act, as amended; or (d) a "rail carrier or a person
controlled by or affiliated with a rail carrier", within the meaning of Title
49, U.S.C., or a "carrier" to which 49 U.S.C. (S) 11301(b)(1) is applicable.
Neither the Company nor any Subsidiary is subject to regulation under any
Federal or state statute, regulation, decree or order which limits its ability
to incur Debt or conditions such ability upon any act, approval or consent of
any Governmental Authority.

          6.16  Compliance with ERISA.  Neither the acquisition of the Notes
                ---------------------
by you nor the consummation of any of the other transactions contemplated by
this Agreement is or will constitute a "prohibited transaction" within the
meaning of Section 4975 of the Code, or Section 406 of ERISA.

          6.17  Offer of Securities.  The sale of the Notes in accordance with
                -------------------
the terms of this Agreement (a) is exempt from the registration requirements of
the Securities Act and applicable state securities or blue sky laws and (b) does
not require the qualification of an indenture under the Indenture Act.  Neither
the Company nor any financial advisor of the Company has directly or indirectly
offered the securities to be purchased by you pursuant to this Agreement or any
part thereof or any similar securities for sale to, or solicited any offer to
buy any of the same from, or otherwise approached or negotiated in respect
thereof with any Person other than you.  Neither the Company nor anyone acting
on its behalf has taken or will take any action which would subject the issuance
and sale of the Notes to the registration and prospectus delivery provisions of
the Securities Act.

          6.18  Use of Proceeds.  The Company will apply the proceeds of the
                ---------------
sale of the Notes solely to develop PCS Systems in the Designated Areas.

                                     -16-
<PAGE>

          6.19  Solvency of the Company.  As of each Closing Date, (a) the
                -----------------------
aggregate value of all the assets of the Company and its Subsidiaries taken as a
whole, at a fair valuation, will exceed the total liabilities of such Person
(including contingent, subordinated, unmatured and unliquidated liabilities);
(b) each of the Company and its Subsidiaries will be able to pay its debts as
they mature; and (c) neither  the Company nor any Subsidiary will have
unreasonably small capital for the business in which it is proposed to be
engaged.  For purposes of this section 6.20, the "fair valuation" of any asset
will be that amount which may be realized within a reasonable time, either
through collection or sale of such asset at fair market value, defining the
latter as the amount which could be obtained for the property in question within
such period by a willing seller from a willing buyer, each having reasonable
knowledge of the relevant facts, neither being under any compulsion to act, with
equity to both.  Neither the Company nor any Subsidiary has any intent to
hinder, delay or defraud any entity to which it is, or will become, on or after
the Initial Series A Closing Date, indebted or to incur debts that would be
beyond its ability to pay as they mature.

          6.20  Certain Fees.  Except for the fees referred to in section 3.4
                ------------
and as disclosed on section 6.21 of the Disclosure Schedule, no broker's or
finder's fee or commission has been paid or will be payable by the Company with
respect to the offer, issue and sale of the Notes or with respect to the
Financing Transactions and the Company hereby indemnifies you against, and will
hold you harmless from, any claim, demand or liability asserted against you for
broker's or finder's fees alleged to have been incurred by the Company or any
other Person (other than you or your Affiliates) in connection with any such
offer, issue and sale or the Financing Transactions or any of the other
transactions contemplated by this Agreement.

          6.21  Regulatory Compliance.  (a) The Company and its Subsidiaries
                ---------------------
are in compliance with the Communications Act and the Telecommunications Act,
except to the extent that the failure to be in compliance could not reasonably
be expected to have a Material Adverse Effect.

          (b)   None of the chief executive officer, chief operating officer,
chief financial officer, general counsel or any other officer or employee of the
Company specifically charged with having knowledge of or monitoring FCC matters
has knowledge of any investigation, notice of apparent liability, violation,
forfeiture or other order or complaint issued by or before the FCC, or of any
other proceedings of or before the FCC, which could reasonably be expected to
have a Material Adverse Effect.

          (c)   Each of the Company and its Subsidiaries holds all Licenses
necessary for the operation of its business as currently conducted except where
the failure to hold such Licenses could not reasonably be expected to have a
Material Adverse Effect (it being understood that on the date hereof neither
Company nor its Subsidiary has any Licenses and no Licenses are required for the
operation of the business of the Company or such Subsidiary as

                                     -17-
<PAGE>

currently conducted). No event has occurred which (i) results in, or after
notice or lapse of time or both would result in, revocation, suspension, adverse
modification, non-renewal, impairment, restriction or termination of, or order
of forfeiture with respect to, any such License in any respect that could
reasonably be expected to have a Material Adverse Effect, or (ii) affects or
could reasonably be expected in the future to affect any of the rights of the
Borrower or its Subsidiaries under any License in any respect that could
reasonably be expected to have a Material Adverse Effect.

          (d)   The Company and its Subsidiaries have duly filed in a timely
manner all material filings, reports, applications, documents, instruments and
information required to be filed by it under the Communications Act, the
Telecommunications Act and under any other applicable federal, state and local
laws, and all such filings were when made true, correct and complete in all
material respects, except to the extent that the failure of any of the foregoing
to be true and correct could not reasonably be expected to have a Material
Adverse Effect.

          (e)   TeleCorp Holdings currently qualifies, and at all times since it
has held any Licenses from the FCC has qualified and will qualify, as a "very
small business," as defined in 47 C.F.R. 101.112(b), and neither the Company nor
Telecorp Holdings has committed or has any present intention to take any action
that would result in Telecorp Holdings not being qualified as a "very small
business" other than by reason of its annual gross revenues.  As a result of the
closing of the transactions under Article II and Article III of the Securities
Purchase Agreement the Company owns (or, prior to such closing, the Company will
own) 100% of the issued and outstanding Capital Stock of TeleCorp Holdings.

          6.22  Disclosure.  Neither this Agreement nor any other document,
                ----------
certificate or instrument delivered to you by or on behalf of the Company in
connection with the transactions contemplated by this Agreement taken as a whole
contains any untrue statement of a material fact or omits to state a material
fact necessary in order to make the statements contained herein and therein, in
light of the circumstances under which they were made, not misleading (it being
understood that, except as set forth in section 6.4, no representation or
warranty is made with respect to any projections or other prospective financial
information).  There is no fact known to the Company (other than matters of a
general economic or political nature which do not affect the Company uniquely)
which has resulted in, or could reasonably be expected to result in, a Material
Adverse Effect, which has not been set forth in this Agreement or in the other
documents, certificates and instruments delivered to you by or on behalf of the
Company in connection with the transactions contemplated hereby and thereby.

          6.23  Subsidiaries.  On the Initial Series A Closing Date, the
                ------------
Borrower's only Subsidiary is TeleCorp PCS, LLC.  On the Initial Series B
Closing Date, the Borrower's only subsidiaries will be TeleCorp Holdings,
TeleCorp PCS, LLC and such other Subsidiaries as Borrower shall identify to you
by written notice on or prior to such Closing Date.

                                     -18-
<PAGE>

          6.24  Security Agreement.  Except as enforceability may be limited
                ------------------
by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws
affecting the enforcement of creditors' rights generally and by general
equitable principles (whether enforcement is sought by proceedings in equity or
at law), the Security Agreement is effective to create in your favor a legal,
valid and enforceable security interest in the collateral secured thereunder and
the proceeds thereof and, when financing statements with respect to such
collateral and proceeds have been filed in each of the jurisdictions set forth
in section 6.24 to the Disclosure Schedule, you shall have a fully perfected
Lien on, and security interest in, all right, title and interest of the Company
in such collateral and the proceeds thereof as described in the Security
Agreement.

          6.25  Licenses.  (a) (i) The Company and its Subsidiaries hold all
                --------
Licenses necessary to operate a System in each of the MTAs in the Designated
Areas, (ii) such Licenses have been duly issued by the FCC and are in full force
and effect and (iii) the Company and its Subsidiaries are in compliance in all
material respects with all the provisions of each such License.  No such License
is subject to any pending or, to the knowledge of the Company, threatened
revocation, adverse modification, suspension or termination proceeding or
action.

          (b)   The Company and its Subsidiaries hold all Licenses necessary to
operate Systems in MTAs and BTAs covering at least 11,100,000 POPs, and such
Licenses have been duly issued by the FCC, are held by the Company or any
Subsidiary and are in full force and effect; and the Company and its
Subsidiaries are in compliance in all material respects with all of the
provisions of each such License.

          6.26  Transaction Documents. (a)  The Company has delivered to you
                ---------------------
complete and correct copies of each of the Transaction Documents (including all
exhibits, schedules and disclosure letters referred to therein or delivered
pursuant thereto, if any) and all amendments thereto, waivers relating thereto
and other side letters or agreements affecting the terms thereof, as such
Documents are in effect on the date this representation is made or deemed made.
Each of the Transaction Documents, as such Documents are in effect on the date
this representation is made or deemed made, has been duly executed and delivered
by the Company, each Subsidiary and other party thereto and is a legal, valid
and binding obligation of the Company, Subsidiary and each other party thereto,
enforceable in accordance with its terms, except as enforceability may be
limited by bankruptcy, insolvency or other similar laws affecting the rights of
creditors generally and by general principles of equity (whether enforcement is
sought by proceedings in equity or at law).  The transactions under Article II
and Article III of the Securities Purchase Agreement contemplated to be
completed on the Closing Date (as defined in the Securities Purchase Agreement)
have been consummated in accordance with the terms thereof, each Transaction
Document is in full force and effect.

                                     -19-
<PAGE>

          (b)   The representations and warranties of the Company and to the
knowledge of the chief executive officer, chief operating officer, chief
financial officer and the general counsel of the Company, each other party to
the Transaction Documents, as such Documents are in effect on the date this
representation is made or deemed made, are true and correct in all material
respects except where the failure of such representations to be true and correct
in all material respects could not reasonably be expected to have a Material
Adverse Effect.  Such representations and warranties, together with the
definitions of all defined terms used therein, are by this reference deemed
incorporated herein mutatis mutandis and you are entitled to rely on the
                    ----------------
accuracy of such representations and warranties.

          7.    Purchase Intent; Investor Status.
                --------------------------------

          7.1   Purchase Intent.  You represent that you are purchasing the
                ---------------
Notes for your own account, not with a view to the distribution thereof or with
any present intention of distributing or selling any of such Notes except in
compliance with the Securities Act and any applicable state securities laws;
provided that the disposition of your property shall at all times be within your
- --------
control.

          7.2   Accredited Investor.  You are knowledgeable, sophisticated and
                -------------------
experienced in business and financial matters; you acknowledge that the Notes
have not been registered under the Securities Act; you understand that the Notes
must be held indefinitely unless they are subsequently registered under the
Securities Act or such sale is permitted pursuant to an available exemption from
such registration requirement; you are able to bear the economic risk of your
investment in the Notes and are presently able to afford the complete loss of
such investment; you are an "accredited investor" as defined in Regulation D
promulgated under the Securities Act; and you have been afforded access to
information about the Company and its Subsidiaries and their financial
condition, results of operations, business, property, management and prospects
sufficient to enable you to evaluate your investment in the Notes.  You
acknowledge that you have conducted your own analysis of the foregoing factors.

          8.    Furnishing of Information.
                -------------------------

          8.1   Financial Statements and Other Information.  The Company will
                ------------------------------------------
deliver to you, so long as you shall be entitled to purchase Notes under this
Agreement or you or your nominee shall be the holder of any Notes and to each
other holder of any Notes:

          (a)   within 45 days after the end of each of the first three
quarterly fiscal periods in each fiscal year of the Company, unaudited
consolidated and consolidating balance sheets of the Company and its
Subsidiaries as at the end of such period and the related unaudited consolidated
and consolidating statements of income, stockholders' equity and cash flows for
such period and (in the case of the second and third quarterly periods) for the
period from the

                                     -20-
<PAGE>

beginning of the current fiscal year to the end of such quarterly period,
setting forth in each case in comparative form the consolidated figures for the
corresponding periods of the previous fiscal year, all in reasonable detail and
certified by a principal financial officer of the Company as having been
prepared in accordance with GAAP (except for the absence of notes thereto)
applied (except as specifically set forth therein) on a basis consistent with
such prior fiscal periods, subject to changes resulting from normal year-end
audit adjustments;

          (b)   within 90 days after the end of each fiscal year of the Company,
consolidated balance sheets of the Company and its Subsidiaries as at the end of
such year and the related consolidated statements of income, shareholders'
equity and cash flows of the Company and its Subsidiaries for such fiscal year,
accompanied by a report thereon of Coopers & Lybrand, or other independent
public accountants of recognized national standing selected by the Company (and
reasonably satisfactory to the Required Holders) (subject to section 17), which
report shall state that such consolidated financial statements present fairly
the financial position of  the Company and its Subsidiaries as at the dates
indicated and the results of their operations and their cash flows for the
periods indicated in conformity with GAAP applied on a basis consistent with
prior years (except as otherwise specified in such report) and that the audit by
such accountants in connection with such consolidated financial statements has
been made in accordance with generally accepted auditing standards together with
a consolidating balance sheet and consolidating statements of income and cash
flow reviewed by Coopers & Lybrand and certified by a principal financial
officer of the Company as presenting fairly the financial position of  the
Company and its Subsidiaries as at the dates indicated and the results of their
operations and their cash flows for the periods indicated in accordance with
GAAP (except as specifically set forth therein) applied on a basis consistent
with prior years;

          (c)   promptly upon receipt thereof, copies of all reports submitted
to the Company or any Subsidiary by independent public accountants in connection
with each annual, interim or special audit of the books of the Company or such
Subsidiary made by such accountants, including, without limitation, any comment
letter submitted by such accountants to management in connection with their
annual audit;

          (d)   promptly upon their becoming available, copies of all financial
statements, reports, notices and proxy statements sent or made available
generally by the Company to its security holders, of all regular and periodic
reports and all registration statements and prospectuses filed by the Company
with any securities exchange or with the Securities and Exchange Commission or
any Governmental Authority succeeding to any of its functions, and of all press
releases and other statements made available generally by the Company to the
public concerning material developments in the business of the Company or its
Subsidiaries;

          (e)   subject to Section 30, promptly upon any Responsible Officer
obtaining knowledge of any condition or event which constitutes an Event of
Default or Potential Event of

                                     -21-
<PAGE>

Default, or that the holder of any Note has given any notice or taken any other
action with respect to a claimed Event of Default or Potential Event of Default
under this Agreement or that any Person has given any notice to the Company or
any Subsidiary or taken any other action with respect to a claimed default or
event or condition of the type referred to in paragraph (g) of section 12, an
Officers' Certificate describing the same and the period of existence thereof
and what action the Company and its Subsidiaries have taken, are taking and
propose to take with respect thereto;

          (f)  (i) prior to the completion by the Company a Qualifying High
Yield Offering, such other information as the Company may provide to the lenders
(or to the lead agent or administrative agent for the lenders) under the Credit
Agreement (including any certifications or statements with respect to the
Company's financial condition or otherwise, in each case, modified as necessary
to reflect compliance with this Agreement) and (ii) thereafter, in lieu of the
information provided in clause (i), such information as the Company may provide
to the holders of its High Yield Debt (including any such certifications);
provided that, in connection with any remarketing of the Notes after the
- --------
completion by the Company of a Qualifying High Yield Offering, you may request
and, subject to section 9.2, the Company shall provide to any prospective
participant or assignee such information as the Company may provide to the
lenders (or to the lead agent or administrative agent for the benefit of the
lenders) under the Credit Agreement.

          8.2  Opinion of Counsel.  Concurrent with the closing of the
               ------------------
transactions under the Credit Agreement, the Company will deliver an opinion
addressed to you of (a) Wiley, Rien & Fielding, special FCC counsel to the
Company, and (b) McDermott, Will & Emery, special counsel to the Company, each
in the same form and addressing the same issues as are addressed in the opinion
of each such firm delivered to the lenders or to the agent, for the benefit of
the lenders in connection with the Credit Agreement.

          9.   Inspection; Confidentiality.
               ---------------------------

          9.1  Inspection.  Subject to section 30, the Company will permit and
               ----------
will cause its Subsidiaries to permit any authorized representatives designated
by any holder or holders of 25% or more in principal amount of the Notes at the
time outstanding (subject to section 17), upon reasonable prior notice and
during normal business hours, to visit and inspect any of the properties of the
Company and its Subsidiaries, including their books of account, and to make
copies and to take extracts therefrom, and to discuss their affairs, finances
and accounts all at such reasonable times; provided, that so long as no Event of
                                           --------
Default has occurred and is continuing (i) if the Notes are held by a single
holder, such holder shall be permitted one such visit and inspection in each
year and (ii) if the Notes are held by more than one holder, the holders
collectively shall be permitted two such visits and inspections in each year.

                                     -22-
<PAGE>

          9.2  Confidentiality.  (a) You agree to exercise all reasonable
               ---------------
efforts (consistent with your customary methods for keeping information
confidential) to keep any information delivered or made available by the Company
confidential from anyone other than persons employed or retained by you who are
or are expected to become engaged in evaluating, approving, structuring or
administering the transactions contemplated hereunder; provided, that nothing
                                                       --------
herein shall prevent you from disclosing such information (i) to any Affiliate
(provided that you shall be responsible for any breach of this provision by such
 --------
Affiliate) or to any other holder of the Notes, (ii) upon the order of any court
or administrative agency, (iii) upon the request or demand of any regulatory
agency or Governmental Authority having jurisdiction over you, (iv) that has
been publicly disclosed, (v) in connection with any litigation relating to the
Notes, this Agreement or any transaction contemplated hereby to which any of
you, the Company or any Subsidiary may be a party, (vi) to the extent reasonably
required in connection with the exercise of any remedy hereunder, (vii) to your
legal counsel and independent auditors and (viii) to any  proposed participant
or assignee of all or any part of the Notes hereunder, if such other Person,
prior to such disclosure, agrees, in writing, for the benefit of the Company to
comply with the provisions of this section 9.2  (it being understood that prior
to any disclosure under clause (ii), (iii) or (v) of this proviso, you shall, if
reasonably practicable and if such action could not reasonably be expected to
subject you to any civil or criminal sanction or penalty, notify the Company of
such potential disclosure so as to afford the Company the opportunity to contest
such disclosure).

          (b)  The Company shall use its good faith efforts to obtain from any
Governmental Authority to whom this Agreement or the terms thereof must be
disclosed or publicly filed confidential treatment with respect to those
provisions of this Agreement and the Notes which relate to the interest rate,
pricing and remarketing and such other provisions as you may reasonably
designate. The Company shall cooperate with you in such manner as you may
reasonably request to obtain such confidential treatment and will promptly
advise you of any discussions with representatives of any Governmental Authority
with respect to obtaining such treatment.

          (c)  The provisions set forth in this section 9.2 are subject to
section 30.

          10.  Prepayment of Notes.
               -------------------

          10.1 Optional Prepayments.
               --------------------

          (a)  The Company, at its option, upon notice as provided in section
10.6, may redeem at any time, in whole or in part (in a minimum amount of
$10,000,000 and in integral multiples of $1,000,000 in excess thereof), without
premium, any Notes that are held by the Vendor or any Affiliate to the extent
that participations have not been granted to Participants (other than
Participants who are Affiliates of the Vendor) in such Notes.

                                     -23-
<PAGE>

          (b)  Subject to section 10.01 (a), with respect to any Series A Notes
which the Vendor has either assigned or granted participations, in each case, to
Persons who are not Affiliates of the Vendor, the Company, at its option, upon
notice as provided in section 10.6, may redeem at any time prior to May 1, 2002
in whole or in part (in a minimum amount of $10,000,000 and in integral
multiples of $1,000,000 in excess thereof), without premium, any such Series A
Notes; provided, that any such Series A Notes that are not redeemed prior to
       --------
such date shall not be subject to redemption prior to May 1, 2007.  On or after
May 1, 2007, such Series A Notes shall be subject to redemption at a price equal
to 100% of the aggregate principal amount being so redeemed plus a premium
expressed as a percentage of the Series A Coupon Rate (determined in accordance
with section 10.3(a)).

          (c)  Subject to section 10.01 (a), with respect to any Series B Notes
which the Vendor has either assigned or granted participations, in each case, to
Persons who are not Affiliates of the Vendor, the Company, at its option, upon
notice as provided in section 10.6, may redeem at any time prior to May 1, 2000,
in whole or in part (in a minimum amount of $10,000,000 and in integral
multiples of $1,000,000 in excess thereof), without premium, any such Series B
Notes; provided, that any such Series B Notes that are not redeemed prior to
       --------
such date shall not be subject to redemption prior to May 1, 2005.  On or after
May 1, 2005, such Series B Notes shall be subject to redemption at a price equal
to 100% of the aggregate principal amount being so redeemed plus a premium
expressed as a percentage of the Series B Coupon Rate (determined in accordance
with section 10.3(b).

          10.2 Contingent Prepayments Upon Change of Control.  In the event
               ---------------------------------------------
of the occurrence of a Change of Control, the Company shall give prompt written
notice thereof to each holder of the Notes, by facsimile transmission (and shall
confirm such notice by prompt telephonic advice to an investment officer of each
such holder) or registered mail, which notice shall also contain a written,
irrevocable offer by the Company to prepay, not more than 60 days and not less
than 30 days after the date of such notice, the Notes held by such holder in
full (and not in part); provided that such prepayment shall be permitted under
                        --------
the Credit Agreement and the other Funded Debt Documents of the Company. Upon
the acceptance of such offer by such holder by written notice to the Company at
least 10 days prior to the date of prepayment specified in the Company's offer,
such prepayment of the Notes shall be made at a premium (determined in
accordance with section 10.3) expressed as a percentage of the Series A Coupon
Rate or Series B Coupon Rate, as applicable, together with, in each case,
accrued and unpaid interest through the date of purchase.  Any offer by the
Company to prepay the Notes pursuant to this section 10.2 shall be accompanied
by an Officers' Certificate certifying that the conditions of this section 10.2
have been fulfilled and specifying the particulars of such fulfillment.  If the
holder of any Notes shall accept such offer, the principal amount of such Notes
shall become due and payable on the date specified in such offer.
Notwithstanding the foregoing, if a Change of Control shall occur prior to May
1,2002, in the case of the Series B Notes, or May 1,2000, in

                                     -24-
<PAGE>

the case of the Series A Notes, the Company may in lieu of such irrevocable
offer to prepay elect to prepay the Series A Notes or the Series B Notes
pursuant to section 10.1; provided that (a) such prepayment shall be for all the
                          --------
Notes of such Series and (b) all the Notes then outstanding shall be redeemed or
prepaid; provided further, that such time restrictions shall not apply to any
         -------- -------
Notes held by the Vendor or any of its Affiliates (except to the extent
participations have been granted to Persons who are not Affiliates of the
Vendor).

          10.3 Premium.  (a) For the purposes of clauses (b) and (c) of
               -------
sections 10.1 and for purposes of section 10.2, whenever a premium is required
to be paid upon prepayment of any Series A Note, the applicable premium shall be
(i) for twelve-month period commencing May 31, 2007, 50% of the Series A Coupon
Rate and (ii) for each twelve-month period thereafter, the excess of (A) the
applicable premium for the prior twelve-month period over (B) the product
obtained by multiplying (1) 50% by (2) a fraction, the numerator of which is 1
and the denominator of which is the lesser of (x) 5 and (y) the number of years
from May 31, 2007 to the Series A Final Maturity Date.

          (b)  For the purposes of sections 10.1 and 10.2, whenever a premium is
required to be paid upon prepayment of any Series B Note, the applicable premium
shall be (i) for the twelve-month period commencing May 31, 2005, 50% of the
Series B Coupon Rate and (ii) for each twelve-month period thereafter, the
excess of (A) the applicable premium for the prior twelve-month period over (B)
the product obtained by multiplying (1) 50% by (2) a fraction, the numerator of
which is 1 and the denominator of which is the lesser of (x) 5 and (y) the
number of years from May 31, 2005 to the Series B Final Maturity Date.

          10.4 Mandatory Redemption of Series A Notes.  In the event that the
               --------------------------------------
Net Securities Proceeds, received by the Company from Equity Issuances shall
exceed $130,000,000 as adjusted under section 28, the Company shall give prompt
written notice thereof (which notice shall in any event be within 10 days after
such receipt) to each holder of the Series A Notes by facsimile transmission
(and shall confirm such notice by prompt telephonic advice to an investment
officer of each such holder) or by registered mail.  Such notice shall state
that on a date specified thereon (which date shall be not less than 15 days
after the date of such notice) the Company shall redeem to the extent of such
excess the aggregate principal amount of the Series A Notes held by each holder
for a price equal to the aggregate principal amount thereof plus accrued
interest; provided that if all or any portion of such redemption of the Series A
          --------
Notes shall not be permitted under the Credit Agreement (i) the Company shall
redeem Series A Notes in a principal amount equal to the maximum amount of the
Net Securities Proceeds permitted to be so applied under the Credit Agreement
which in no event shall be less than 50% of all Net Securities Proceeds in
excess of $130,000,000 as adjusted under section 28 (the "Proceeds Redemption
Amount") and (ii) from time to time thereafter if the Company shall receive
additional proceeds from Equity Issuances, the Company shall redeem Series A
Notes in a principal amount equal to the Proceeds Redemption Amount until the
Series A Notes have been

                                     -25-
<PAGE>

redeemed in full. Any notice from the Company to redeem all or a portion of the
Series A Notes pursuant to this section 10.4 shall be accompanied by an
Officers' Certificate certifying that the conditions of this section 10.4 have
been fulfilled. On the date specified in the Company's notice, the Company, upon
receipt of an outstanding Series A Note, shall redeem all or such portion of
such Series A Note together with accrued interest thereon and shall promptly
mail to the holder of such Series A Note payment therefor and, if applicable, a
new Series A Note in a principal amount equal to the excess of the principal
amount of the Series A Note redeemed in connection with such redemption over the
principal amount of such Series A Note so redeemed.

          10.5 Mandatory Redemption of Series B Notes.  (a) In the event that
               --------------------------------------
the Company receives the Net Debt Proceeds from a High Yield Offering and such
Net Debt Proceeds, (together with any prior Net Debt Proceeds previously
received by the Company and its subsidiaries from any other High Yield
Offerings) are less than $120,000,000 in the aggregate (as adjusted pursuant to
section 28), the Company shall give prompt written notice thereof (which notice
shall in any event be within 10 days after such receipt) to each holder of the
Series B Notes by facsimile transmission (and shall confirm such notice by
prompt telephonic advice to an investment officer of each such holder) or by
registered mail.  Such notice shall state that on a date specified therein
(which date shall not be less than 15 days after the date of such notice) the
Company, upon receipt of the outstanding Series B Note, shall redeem Series B
Notes in an aggregate principal amount equal to the Debt Redemption Amount.  Any
notice from the Company to redeem any of the Series B Notes pursuant to this
section 10.5(a) shall be accompanied by an Officer's Certificate certifying that
the conditions of this section 10.5(a) have been fulfilled.  On the date
specified in the Company's notice, the Company, upon receipt of an outstanding
Series B Note, shall redeem such portion of such Series B Note together with
accrued interest thereon and shall promptly mail to the holder of such Series B
Note the redemption payment therefor and a new Series B Note in a principal
amount equal to the excess of the principal amount of the Series B Note
submitted in connection with such redemption over the principal amount of such
Series B Note so redeemed.

          (b)  In the event that the Net Debt Proceeds received by the Company
from High Yield Offerings equal or exceed $120,000,000 in the aggregate (as
adjusted pursuant to section 28), the Company shall give prompt written notice
thereof (which notice shall in any event be within 10 days after such receipt)
to each holder of Series B Notes by facsimile transmission (and shall confirm
such notice by prompt telephonic notice to an investment officer of each such
holder) or by registered mail.  Such notice shall state that on a date specified
therein (which date shall be not less than 15 days after the date of such
notice) the Company shall redeem all the Series B Notes then outstanding.  Any
notice from the Company to redeem all the Series B Notes pursuant to this
section 10.5(b) shall be accompanied by an Officer's Certificate certifying that
the conditions in this section 10.5(b) have been fulfilled.  On the date
specified in the Company's notice, the Company, upon receipt of an outstanding
Series B Note, shall redeem

                                     -26-
<PAGE>

such Series B Note together with accrued interest thereon and shall promptly
mail to the holder of such Series B Note the redemption payment therefor.

          10.6 Notice of Optional Prepayments; Officers' Certificate.  The
               -----------------------------------------------------
Company will give each holder of any Notes written notice of each optional
prepayment under section 10.1 not less than 15 days and not more than 60 days
prior to the date fixed for such prepayment, in each case specifying such date,
the aggregate principal amount of the Notes to be prepaid, the principal amount
of each Note held by such holder to be prepaid, and the premium, if any,
applicable to such prepayment.  Such notice shall be accompanied by an Officers'
Certificate certifying that the conditions of such section have been fulfilled
and specifying the particulars of such fulfillment.

          10.7 Allocation of Partial Prepayments.  In the case of each
               ---------------------------------
partial prepayment paid or to be prepaid (except a prepayment pursuant to
section 10.2), the principal amount of the Notes to be prepaid shall be
allocated (in integral multiples of $1,000) among all the Notes at the time
outstanding in proportion, as nearly as practicable, to the respective unpaid
principal amounts thereof not theretofore called for prepayment, with
adjustments, to the extent practicable, to compensate for any prior prepayments
not made exactly in such proportion.  In the case of each partial prepayment
under section 10.2, the principal amount of the Notes to be prepaid or
purchased, as applicable, shall be allocated pro rata among the holders who
accepted such prepayment offer or offer to tender.

          10.8 Maturity; Surrender, etc. In the case of each prepayment, the
               -------------------------
principal amount of each Note to be prepaid shall mature and become due and
payable on the date fixed for such prepayment, together with interest on such
principal amount accrued to such date and the applicable premium, if any.  From
and after such date, unless the Company shall fail to pay such principal amount
when so due and payable, together with the interest and premium, if any, as
aforesaid, interest on such principal amount shall cease to accrue.  Any Note
paid or prepaid in full shall be surrendered to the Company and canceled and
shall not be reissued, and no Note shall be issued in lieu of any prepaid
principal amount of any Note.

          10.9 Acquisition of Notes.  The Company shall not, and shall not
               --------------------
permit any Subsidiary or Affiliate to, purchase, redeem or otherwise acquire any
Note except upon the payment, redemption or  prepayment thereof in accordance
with the terms of this Agreement and such Note.

          11.  Covenants.  The Company covenants that from the date of this
               ---------
Agreement through the Initial Series A Closing and thereafter so long as any of
the Notes are outstanding:

          11.1 Payment of Notes.  The Company shall pay the principal of,
               ----------------
premium, if any, and interest on the Notes on the dates and in the manner
provided herein and in the Notes.

                                     -27-
<PAGE>

          11.2 Payment of Taxes and Claims.  Subject to section 30, the
               ---------------------------
Company shall, and shall cause each Subsidiary to, pay all taxes, assessments
and other governmental charges imposed upon it or any of its properties or
assets or in respect of any of its franchises, business, income or profits as
and when due and all claims (including, without limitation, claims for labor,
services, materials and supplies) for sums which have become due and payable and
which by law have or might become a Lien upon any of its properties or assets;
provided that (i) no such charge or claim need be paid if being contested in
- --------
good faith by appropriate proceedings diligently conducted, if reserves or other
appropriate provision, if any, as shall be required by GAAP, shall have been
made therefor and (ii) there shall be no default pursuant to this section if the
failure to pay any of the foregoing could not reasonably be expected to have
Material Adverse Effect.

          11.3 Liens, etc.  The Company shall not, and shall not permit any
               ----------
Subsidiary to, directly or indirectly incur, issue, assume, guarantee or suffer
to exist any High Yield Debt or any other Debt which ranks pari passu or junior
to the Notes which is secured by any Lien on any property or assets of the
Company or any Subsidiary or on any shares of Capital Stock of any Subsidiary,
without effectively providing that the principal of, premium, if any, and
interest on the Notes shall be secured equitably and ratably with (or prior to)
such High Yield Debt or other Debt; provided that the priority of such lien
shall be subordinated to any Liens securing any High Yield Debt that is senior
to the Notes Debt.

          11.4 Restricted Payments.  Unless (a) no Event of Default or
               -------------------
Potential Event of Default shall exist which is continuing and (b) the Company
shall have paid all interest on the Notes on each of the prior three Payment
Dates in cash, the Company shall not declare or make any Restricted Payment;
provided that the restriction set forth in clause (b) shall not apply to
- --------
Restricted Payments made by the Company in respect of shares of Series A
Convertible Preferred Stock $.01 par value which are outstanding and held by
AT&T PCS, TWR or any other wholly-owned Subsidiary of AT&T which payments shall
not exceed $100 per share per year.

          11.5 Consolidation, Merger, Sale of Assets, etc.  The Company shall
               -------------------------------------------
not, and shall not permit any Subsidiary to, directly or indirectly:

          (a)  consolidate with or merge into any other Person or permit any
other Person to consolidate with or merge into it, except that:

               (i)  any Subsidiary of the Company may consolidate with or merge
          into the Company or a Subsidiary (or any Person who, after giving
          effect to any such merger or consolidation would be a Subsidiary) if
          the Company or such Subsidiary, as the case may be, shall be the
          surviving corporation and if,

                                     -28-
<PAGE>

          immediately after giving effect to such transaction, no condition or
          event shall exist which constitutes an Event of Default or Potential
          Event of Default;

               (ii)  any corporation (other than a Subsidiary) may consolidate
          with or merge into the Company if the Company shall be the surviving
          corporation and if, immediately after giving effect to such
          transaction, (x) substantially all the assets of the Company shall be
                        -
          located and substantially all its business shall be conducted within
          the United States and Puerto Rico, (y) the Company's Consolidated Net
                                              -
          Worth shall not be less than the Consolidated Net Worth of the Company
          immediately prior to such transaction and (z) no condition or event
                                                     -
          shall exist which constitutes an Event of Default or Potential Event
          of Default; and

               (iii) the Company may consolidate with or merge into any other
          corporation if (w) the surviving corporation is a corporation
                          -
          organized and existing under the laws of the United States of America
          or a state thereof, with substantially all its assets located and
          substantially all its business conducted within the United States and
          Puerto Rico, (x) such corporation expressly assumes, by an agreement
                        -
          reasonably satisfactory in substance and form to the Required Holders
          (which agreement may require the delivery in connection with such
          assumption of such opinions of counsel as such holders may reasonably
          require), the obligations of the Company under this Agreement and
          under the Notes, (y) immediately after giving effect to such
                            -
          transaction (and such assumption), the Company's Consolidated Net
          Worth shall not be less than the Consolidated Net Worth of the Company
          immediately prior to such transaction and (z) immediately after giving
                                                     -
          effect to such transaction no condition or event shall exist which
          constitutes an Event of Default or a Potential Event of Default; or

          (b)  sell, lease, abandon or otherwise dispose of all or substantially
all its assets, except that:

               (i)  any Subsidiary of the Company may sell, lease or otherwise
          dispose of all or substantially all its assets to the Company or a
          Wholly-Owned Subsidiary; and

               (ii)   the Company may sell, lease or otherwise dispose of all or
          substantially all its assets to any corporation into which the Company
          could be consolidated or merged in compliance with subdivision
          (a)(iii) of this section 11.5; provided that (x) each of the
                                         --------       -
          conditions set forth in such subdivision (a)(iii) shall have been
          fulfilled, and (y) no such disposition shall relieve the Company from
                          -
          its obligations under this Agreement or the Notes.

                                     -29-
<PAGE>

          11.6  Requirements of Law.  Subject to section 30, each of the
                -------------------
Company and its Subsidiaries shall comply with all applicable Requirements of
Law and obtain and comply in all material respects with and maintain any and all
Licenses necessary for its operations, except to the extent that failure to do
so could not reasonably be expected to have a Material Adverse Effect.

          11.7  Transactions with Affiliates.  The Company shall not, and
                ----------------------------
shall not permit any Subsidiary to, directly or indirectly, engage in any
transaction material to the Company or any Subsidiary (including, without
limitation, the purchase, lease, sale or exchange of assets or the rendering of
any service) with any Affiliate, except upon fair and reasonable terms that are
no less favorable to the Company or such Subsidiary, as the case may be, than
those which might be obtained, in the good faith judgment of the  Company, in an
arm's length transaction at the time from Persons which are not Affiliates and,
in the case of any transaction between the Company and any Management
Stockholder(or any Affiliate of any Management Stockholder) shall have been
approved by a majority of the directors (excluding any directors who are either
Management Investors or who are selected by the Management Stockholders and are
not subject to approval by any of the other holders of the Capital Stock of the
Company); provided that the foregoing restrictions shall not apply to the
          --------
transactions contemplated under the Transaction Documents or any transaction
between the Company and any Wholly-Owned Subsidiary or between one Wholly-Owned
Subsidiary and another Wholly-Owned Subsidiary.

          11.8  Corporate Existence, etc.; Business.  Subject to section 30,
                -----------------------------------
the Company shall at all times preserve and keep in full force and effect its
corporate existence, rights, qualifications and franchises (including, without
limitation, all Licenses) deemed material to its business and those of each of
its Subsidiaries (including, in the case of TeleCorp Holdings,  its
qualification as a "very small business" as defined as 47 C.F.R. 101.112(b)
other than by reason of its annual gross revenues), except as otherwise
specifically permitted by section 11.5 and except to the extent that failure to
do so could not reasonably be expected to have a Material Adverse Effect.

          11.9  Fundamental Business Change.  The Company and its Subsidiaries
                ---------------------------
shall not materially change the nature of their businesses or engage in any
business other than the development of PCS Systems in the Designated Areas and
in the Expansion Areas and other businesses reasonably related thereto
(including providing cellular, wireless local loop, competitive local exchange
carrier, wireless communications service, and local multipoint distribution
services).

          11.10 Compliance with ERISA.  Subject to section 30, the Company
                ---------------------
and its Subsidiaries and any Commonly Controlled Entity shall not, permit any
Person to engage in any

                                     -30-
<PAGE>

"prohibited transaction" (as defined in Section 406 of ERISA or Section 4975 of
the Code) involving any Plan.

          12.  Events of Default; Acceleration.  If any of the following
               -------------------------------
conditions or events ("Events of Default") shall occur and be continuing:

          (a)  if the Company shall default in the payment of any principal of
or premium, if any, on or any other amount (other than interest not paid in
connection with a prepayment or redemption) with respect to any Note when the
same becomes due and payable, whether at maturity or at a date fixed for
prepayment or by declaration or otherwise; or

          (b)  if the Company shall default in the payment of any cash interest
(other than interest paid in connection with a prepayment or redemption) or pay-
in-kind interest on any Note for more than 15 days after the same becomes due
and payable; or

          (c)  if the Company shall default in the performance of section 11.5;
or

          (d)  if the Company shall default in the performance of or compliance
with any other term contained in this Agreement and such default shall not have
been remedied within 30 days after such failure shall first have become known to
any Responsible Officer of  the Company or written notice thereof shall have
been received by the Company from any holder of any Note; or

          (e)  if any representation or warranty made in writing by or on behalf
of the Company in this Agreement or in any instrument furnished in compliance
with this Agreement shall prove to have been false or incorrect in any material
respect on the date as of which made; or

          (f)v if the Company or any Subsidiary shall default (as principal or
guarantor or other surety) in the payment of any principal of or premium or
interest on any Senior Debt which is outstanding in a principal amount of at
least $15,000,000 (or on any one or more items of Senior Debt which are
outstanding in the aggregate in a principal amount of at least $15,000,000), or
if any event shall occur or condition shall exist in respect of any such Debt or
under any evidence of any such Debt or of any mortgage, indenture or other
agreement relating thereto, the effect of which default in payment event or
condition is to cause the acceleration of the payment of such Debt, or to
require the Company or Subsidiary to repurchase such Debt, before its stated
maturity or before its regularly scheduled dates of payment, provided that in
                                                             --------
the event such default in payment or such event or condition is waived and any
acceleration rescinded prior to the acceleration of the Notes or the
commencement of any exercise of remedies under section 13 and in any event
within 30 days following such occurrence by each affected holder of such Debt
and by each Person that acquired a remedy as a result of such

                                     -31-
<PAGE>

default in payment or such event or condition, then such default in payment or
such event or condition shall be deemed waived hereunder; or

          (g) if a final judgment or judgments shall be rendered against the
Company or any Subsidiary for the payment of money in excess of $15,000,000 in
the aggregate (excluding any such judgment covered by insurance not disputed by
the carrier thereof) and any one of such judgments shall not be discharged or
execution thereon stayed or bonded pending appeal within 90 days after entry
thereof or, in the event of such a stay, such judgment shall not be discharged
or satisfied within 90 days after such stay expires; or

          (h) if the Company or any Material Subsidiary shall (i) be generally
not paying its debts as they become due, (ii) file, or consent by answer or
otherwise to the filing against it of, a petition for relief or reorganization
or arrangement or any other petition in bankruptcy, for liquidation or to take
advantage of any bankruptcy or insolvency law of any jurisdiction, (iii) make an
assignment for the benefit of its creditors, (iv) consent to the appointment of
a custodian, receiver, trustee or other officer with similar powers with respect
to it or with respect to any substantial part of its property, (v) be finally
adjudicated insolvent or (vi) take corporate action for the purpose of any of
the foregoing; or

          (i) if a court or Governmental Authority of competent jurisdiction
shall enter an order appointing, without consent by the Company or any Material
Subsidiary, a custodian, receiver, trustee or other officer with similar powers
with respect to it or with respect to any substantial part of its property, or
if an order for relief shall be entered in any case or proceeding for
liquidation or reorganization or otherwise to take advantage of any bankruptcy
or insolvency law of any jurisdiction, or ordering the dissolution, winding-up
or liquidation of the Company or any Material Subsidiary, or if any petition for
any such relief shall be filed against the Company or any Material Subsidiary
and such petition shall not be dismissed within 60 days; or

          (j) the Company shall be in default of or shall breach any of its
obligations under the Procurement Contract and as a result thereof such
Procurement Contract shall have terminated; provided that no Event of Default
shall exist under this clause (j) if (i) none of the Notes are then held by the
Vendor or, if held by the Vendor, participations have been granted in such Notes
(other than participations to Persons who are Affiliates) or (ii) the Company
shall have acquired from the Vendor, shall have deployed and shall have paid all
amounts to the Vendor with respect to a mobile switching center and fifty base
stations for each of the following Designated Areas:  Memphis, Tennessee; Little
Rock, Arkansas; New Orleans, Louisiana and Boston, Massachusetts and, if you
shall have provided financing for any Expansion Areas, a mobile switching
station and fifty base stations for each such Expansion Area.

                                     -32-
<PAGE>

          (k)  the Company and AT&T shall fail to consummate the transactions
contemplated under Article II and III of the Securities Purchase Agreement and
under the Related Agreements on or prior to September 30, 1998; or

          (l)  the Company shall fail to enter into the Credit Agreement and
obtain term loans thereunder in a principal amount of not less than $75,000,000
on or prior to September 30, 1998; or

          (m)  the Company shall fail to repay all amounts under the Extended
Payment Terms Facility on or prior to September 30, 1998;

then (i) (A)  upon the occurrence of any Event of Default described in
paragraphs (h) and (i) of this section 12, the Commitments shall automatically
terminate and (B) with respect to any other Event of Default, the Required
Holders of the Notes (subject to section 17) may by notice to the Company
declare the Commitments terminated forthwith whereupon the Commitments shall be
terminated, and (ii) (A) upon the occurrence of any Event of Default described
in paragraphs (h) and (i) of this section 12, the unpaid principal amount of and
accrued interest on the Notes shall automatically be due and payable or (B) with
respect to any other Event of Default (x) if such event is an Event of Default
described in paragraphs (a), (b), (f), (j), or (k), of this section 12 the
Required Holders of Notes at such time outstanding (subject to section 17) may
at any time (unless all defaults shall have been remedied) at its or their
option, by written notice or notices to the Company, declare the Notes to be due
and payable; or (y) if such event is an Event of Default described in any other
                 -
paragraph of this section 12 and such event occurs before the Credit Agreement
shall have been executed and delivered and shall be in full force and effect,
the Required Holders of the Notes (subject to section 17) may declare the Notes
due and payable; whereupon, with reference to any such declaration, the Notes
shall forthwith mature and become due and payable together with interest accrued
thereon, without presentment, demand, protest or notice, all of which are hereby
waived.

          At any time after the principal of, and interest on, all the Notes are
declared due and payable, the holders of 66 2/3% or more in aggregate principal
amount of the Notes then outstanding, by written notice to the Company, may
rescind and annul any such declaration and its consequences if (1) the Company
has paid all overdue interest on the Notes and the principal of, and premium, if
any, on any Notes which have become due otherwise by reason of such declaration,
and interest on such overdue principal and premium and (to the extent permitted
by applicable law) any overdue interest in respect of the Notes at the rate of
2% per annum above the then effective rate of interest on the Notes, (2) all
Events of Default, other than non-payment of amounts which have become due
solely by reason of such declaration, and all conditions and events which
constitute Events of Default or Potential Events of Default have been cured or
waived and (3) no judgment or decree shall have been entered for the payment of
any monies due pursuant to the Notes or this Agreement that has not been
vacated; but no such rescission and

                                     -33-
<PAGE>

annulment shall extend to or affect any subsequent Event of Default or Potential
Event of Default or impair any right consequent thereon.

          13.   Remedies on Default, etc. If any Event of Default shall occur
                ------------------------
and be continuing, the holder of any Note at the time outstanding may, to the
extent permitted by applicable law, proceed to protect and enforce the rights of
such holder by an action at law, suit in equity or other appropriate proceeding,
whether for the specific performance of any agreement contained herein or in
such Note, or for an injunction against a violation of any of the terms hereof
or thereof, or in aid of the exercise of any power granted hereby or thereby or
by law or otherwise.  No course of dealing and no delay on the part of any
holder of any Note in exercising any right, power or remedy shall operate as a
waiver thereof or otherwise prejudice such holder's rights, powers or remedies.
No right, power or remedy conferred by this Agreement or by any Note upon any
holder thereof shall be exclusive of any other right, power or remedy referred
to herein or therein or now or hereafter available at law, in equity, by statute
or otherwise.

          14.   Subordination.
                -------------

          14.1  Notes Subordinate to Senior Debt.  The Company covenants and
                --------------------------------
agrees, and each holder of a Note, by its acceptance thereof, likewise covenants
and agrees, that, to the extent and in the manner hereinafter set forth in this
section, the payment of the principal of, premium, if any, and interest on each
and all the Notes and the repurchase, redemption or other retirement of the
Notes is hereby expressly made subordinate and subject in right of payment to
the prior payment in full in cash or cash equivalents or, as acceptable to the
holders of Senior Debt, in any other manner, of all Senior Debt in the manner
set forth in this section 14.  The terms of this section 14 are for the benefit
of, and shall be enforceable directly by, each holder of Senior Debt, and each
holder of Senior Debt whether now outstanding or hereafter created, incurred,
assumed or guaranteed shall be deemed to have acquired such Senior Debt in
reliance upon the covenants and provisions contained in this Agreement.

          14.2  Payment of Proceeds Upon Dissolution, Etc. Upon any payment or
                -----------------------------------------
distribution of assets of the Company to creditors upon any liquidation,
dissolution, winding-up, reorganization, assignment for the benefit of
creditors, marshaling of assets or liabilities or any bankruptcy,
reorganization, receivership, insolvency or similar proceedings of the Company
or its property, whether voluntary or involuntary (each such event, if any,
herein sometimes referred to as a "Proceeding"):

          (a)   The holders of Senior Debt shall receive payment in full in cash
or cash equivalents or, as acceptable to the holders of Senior Debt, in any
other manner, of all amounts due on or to become due on or in respect of all
Senior Debt (including any interest accruing thereon after the commencement of
any such Proceeding, whether or not allowed as a claim against the Company in
such Proceeding) or provision shall be made for such payment in a

                                     -34-
<PAGE>

manner acceptable to such holders before the holders of the Notes are entitled
to receive any payment or distribution whether by setoff, exercising contractual
or statutory rights or otherwise and whether in the form of cash, stock or
property or otherwise (excluding any payment or distribution described in the
last paragraph of this section 14.2(b)), on account of the principal of,
premium, if any, interest on or any other obligation owing in respect of the
Notes or on account of any purchase, redemption or other acquisition of Notes by
the Company (all such payments, distributions, purchases, redemptions and
acquisitions, whether or not in connection with a Proceeding (but excluding any
payment or distribution described in the last paragraph of this section 14.2),
being herein referred to, individually and collectively, as a "Securities
Payment"); and

          (b)  Any payment or distribution of assets of the Company of any kind
or character, whether in cash, property or securities, by set-off or otherwise,
to which the holders of the Notes would be entitled but for the provisions of
this section 14, shall be paid by the Company or the  liquidating trustee or
agent or other Person making such payment or distribution, whether a trustee in
bankruptcy, a receiver or liquidating trustee or otherwise, directly to the
holders of Senior Debt or their representatives or trustees under any credit
agreement, indenture or other agreement under which any such Senior Debt may
have been issued, ratably according to the aggregate amounts remaining unpaid on
account of the Senior Debt held or represented by each, to the extent necessary
to make payment in full in cash or cash equivalents or, as acceptable to the
holders of Senior Debt, in any other manner, of all Senior Debt remaining
unpaid, after giving effect to any concurrent payment or distribution to the
holders of such Senior Debt.

          In the event that, notwithstanding the foregoing provisions of this
section, the holder of any Notes shall have received in connection with any
Proceeding any Securities Payment before all Senior Debt is paid in full or
payment thereof is provided for in cash or cash equivalents, then and in such
event such Securities Payment shall be held in trust for the benefit of and paid
over or delivered forthwith to the trustee in bankruptcy, receiver, liquidating
trustee, custodian, assignee, agent or other Person making payment or
distribution of assets of the Company for application to the payment of all
Senior Debt remaining unpaid, to the extent necessary to make payment in full in
cash or cash equivalents or, as acceptable to the holders of the Senior Debt, in
any other manner, of all Senior Debt remaining unpaid after giving effect to any
concurrent payment to or for the holders of Senior Debt.

          For purposes of this section 14 only, the words "payment or
distribution" or "any payment or distribution of any kind or character, whether
in cash, property or securities" shall not be deemed to include a payment or
distribution of stock or securities of the Company provided for by a plan of
reorganization or readjustment authorized by an order or decree of a court of
competent jurisdiction in a reorganization proceeding under any applicable
bankruptcy law or of any other corporation provided for by such plan of
reorganization or readjustment, which stock

                                     -35-
<PAGE>

or securities are subordinated in right of payment to all then outstanding
Senior Debt to substantially the same extent, or to a greater extent than, the
Notes are so subordinated as provided in this section 14. The consolidation of
the Company with, or the merger of the Company into, another Person or the
liquidation or dissolution of the Company following the conveyance, transfer or
lease of all or substantially all of its properties and assets to another Person
upon the terms and conditions set forth in section 11.5 and so long as permitted
under the terms of the Senior Debt shall not be deemed a Proceeding for the
purposes of this section if the Person formed by such consolidation or into
which the Company is merged or the Person which acquires by conveyance, transfer
or lease such properties and assets, as the case may be, shall, as a part of
such consolidation, merger, conveyance, transfer or lease, comply with the
conditions set forth in section 14.

          (c)   To the extent any payment of Senior Debt (whether by or on
behalf of the Company, as proceeds of security or enforcement of any right of
setoff or otherwise) is declared to be fraudulent or preferential, set aside or
required to be paid to any receiver, trustee in bankruptcy, liquidating trustee,
agent or other similar Person under any bankruptcy, insolvency, receivership,
fraudulent conveyance or similar law, then if such payment is recovered by, or
paid over to, such receiver, trustee in bankruptcy, liquidating trustee, agent
or other similar Person, the Senior Debt or part thereof originally intended to
be satisfied shall be deemed to be reinstated and outstanding as if such payment
had not occurred.

          14.3  No Payment When Senior Debt in Default. In the event that any
                --------------------------------------
Senior Payment Default (as defined below) shall have occurred and be continuing,
then no Securities Payment whether by setoff, exercising contractual or
statutory rights or otherwise and whether in the form of cash, stock or property
or otherwise shall be made, unless and until such Senior Payment Default shall
have been cured or waived in writing or shall have ceased to exist or all
amounts then due and payable in respect of such Senior Debt (including, without
limitation, amounts that have become and remain due by acceleration) shall have
been paid in full in cash.  "Senior Payment Default" means any default in the
payment of the principal of, premium, if any, or interest on any Senior Debt
when due, whether at the stated maturity of any such payment or by declaration
of acceleration, call for redemption, notice of the exercise of an option to
require such repayment, mandatory payment or prepayment or otherwise.

          In the event that any Senior Nonmonetary Default (as defined below)
shall have occurred and be continuing, then, upon the receipt by the Company of
written notice of such Senior Nonmonetary Default from the agent under the
Credit Agreement to which such Senior Nonmonetary Default relates or, if no
loans or other amounts are then outstanding under the Credit Agreement or any
renewal, extension or refunding thereof, and the Credit Agreement and any such
renewal, extension or refunding have been terminated, upon receipt of such
notice by or on behalf of any other holder or holders of Senior Debt in an
aggregate amount in excess of $25,000,000, no Securities Payment shall be made
whether by setoff, exercising contractual or

                                     -36-
<PAGE>

statutory rights or otherwise and whether in the form of cash, stock or property
or otherwise be made during the period (the "Payment Blockage Period")
commencing on the date of such receipt by the Company of such written notice and
ending on the earlier of (a) the date, if any, on which the Senior Debt to which
such Senior Nonmonetary Default relates is discharged or such Senior Nonmonetary
Default shall have been cured or waived in writing or shall have ceased to exist
and any acceleration of Senior Debt to which such Senior Nonmonetary Default
relates shall have been rescinded or annulled and (b) the 179th day after the
date of such receipt of such written notice. No more than one Payment Blockage
Period may be commenced with respect to the Notes during any period of 360
consecutive days and there shall be a period of at least 181 consecutive days in
each period of 360 consecutive days when no Payment Blockage Period is in
effect. Following the commencement of any Payment Blockage Period, the holders
of Senior Debt shall be precluded from commencing a subsequent Payment Blockage
Period until the conditions set forth in the preceding sentence shall have been
satisfied. For all purposes of this paragraph, no Senior Nonmonetary Default
that existed and was continuing on the date of commencement of any Payment
Blockage Period with respect to the Senior Debt initiating such Payment Blockage
Period shall be, or may be made, the basis for the commencement of a subsequent
Payment Blockage Period by any holder of Senior Debt or any representative or
trustee under any indenture under which any such Senior Debt may have been
issued unless such Senior Nonmonetary Default shall have been cured for a period
of not less than 90 consecutive days. "Senior Nonmonetary Default" means any
default (other than a Senior Payment Default), under the terms of any instrument
or agreement pursuant to which any Senior Debt is outstanding, permitting one or
more holders of such Senior Debt or any representative or trustee under any
indenture under which any such Senior Debt may have been issued to declare such
Senior Debt due and payable prior to the date on which it would otherwise become
due and payable.

          In the event that, notwithstanding the foregoing, the Company shall
make any Securities Payment to any holder prohibited by the foregoing provisions
of this section 14.3, then in such event such Securities Payment shall be held
in trust and paid over and delivered forthwith to the representatives or trustee
under any indenture under which any such Senior Debt may have been issued
ratably according to the aggregate amounts remaining unpaid on account of the
Senior Debt held or represented by under the Senior Debt or, if there is no such
representative or trustee with respect to such Senior Debt, to the holders of
such Senior Debt.

          The provisions of this section 14.3 shall not apply to any Securities
Payment with respect to which section 14.2 hereof would be applicable.

          14.4  Acceleration of Subordinated Debt. If an Event of Default shall
                ---------------------------------
have occurred and be continuing (other than an Event of Default pursuant to
paragraphs (h) or (i) of section 12), the holders of the Notes shall give the
holders of the Senior Debt not less than 30 days prior written notice before
accelerating the Notes which notice shall state it is a "Notice of

                                     -37-
<PAGE>

Intent to Accelerate". Upon such declaration, the holders of Senior Debt
outstanding at the time such Subordinated Debt so becomes due and payable shall
be entitled to receive payment in full in cash, cash equivalents or, as
acceptable to the holders of the Senior Debt, in any other manner on all amounts
due or to become due on or in respect of such Senior Debt, before the Company
may make, and before any holder of Subordinated Debt is entitled to receive, any
payment or distribution of assets of the Company of any kind or character,
whether in cash, securities or other property on account of any Subordinated
Debt. All payments in respect of the Subordinated Debt postponed under this
section 14.4 shall be immediately due and payable upon the termination of such
postponement; the remittance in full of such payments by the Company in
accordance with the terms of the this Agreement and the acceptance thereof by
the holders of the Notes shall be deemed to constitute a cure by the Company and
a waiver by the holders of the Notes of any Event of Default that existed
immediately prior to such remittance and acceptance to the extent that such
Event of Default existed solely as a consequence of the previous non-payment of
such postponed payments during such period of postponement.

          14.5  Payment Permitted If No Default. Nothing contained in this
                -------------------------------
section 14 or elsewhere in this Agreement or in any of the Notes shall prevent
the Company, at any time except during the pendency of any Proceeding referred
to in section 14.2 or under the conditions described in section 14.3, from
making Securities Payments in accordance with the terms of this Agreement.
Nothing in this section 14 shall have any effect on the right of the holders to
accelerate the maturity of the Notes upon the occurrence of an Event of Default,
but, in that event, no payment may be made in violation of the provisions of
this section 14 with respect to the Notes.  If payment of the Notes is
accelerated because of an Event of Default, the Company shall promptly notify
the holders of the Senior Debt (or their representatives) of such acceleration.

          14.6  Subrogation To Rights of Holders of Senior Debt. Subject to the
                -----------------------------------------------
payment in full in cash or cash equivalents, or as acceptable to the holders of
Senior Debt, in any other manner, of all Senior Debt, the holders of the Notes
shall be subrogated to the rights of the holders of such Senior Debt to receive
payments and distributions of cash, property and securities applicable to the
Senior Debt until the principal of, premium, if any, and interest on the Notes
shall be paid in full. For purposes of such subrogation, no payments or
distributions to the holders of the Senior Debt of any cash, property or
securities to which the holders of the Notes would be entitled except for the
provisions of this section 14, and no payments pursuant to the provisions of
this section 14 to the holders of Senior Debt by holders of the Notes, shall, as
among the Company, its creditors other than holders of Senior Debt and the
holders of the Notes, be deemed to be a payment or distribution by the Company
to or on account of the Senior Debt.

          14.7  Provisions Solely To Define Relative Rights. The provisions of
                -------------------------------------------
this section 14 are and are intended solely for the purpose of defining the
relative rights of the holders of the Notes on the one hand and the holders of
Senior Debt on the other hand. Nothing

                                     -38-
<PAGE>

contained in this section 14 or elsewhere in this Agreement or in the Notes is
intended to or shall (a) impair, as among the Company, its creditors other than
holders of Senior Debt and the holders of the Notes, the obligation of the
Company, which is absolute and unconditional (and which, subject to the rights
under this section 14 of the holders of Senior Debt, is intended to rank equally
with all other general obligations of the Company), to pay to the holders of the
Notes the principal of, premium, if any, and interest on the Notes as and when
the same shall become due and payable in accordance with their terms; or (b)
affect the relative rights against the Company of the holders of the Notes and
creditors of the Company other than the holders of Senior Debt; or (c) prevent
the holder of any Note from exercising all remedies otherwise permitted by
applicable law upon default under this Agreement, subject to this section 14,
including the rights, if any, under this section 14 of the holders of Senior
Debt to receive cash, property and securities otherwise payable or deliverable
to such holder or, under the conditions specified in section 14.3, to prevent
any payment prohibited by such section or enforce their rights pursuant to the
penultimate paragraph in section 14.

          14.8  No Waiver of Subordination Provisions. No right of any present
                -------------------------------------
or future holder of any Senior Debt to enforce the subordination provisions
provided herein shall at any time in any way be prejudiced or impaired by any
act or failure to act on the part of the Company or by any act or failure to
act, in good faith, by any such holder, or by any noncompliance by the Company
with the terms, provisions and covenants of this Agreement, regardless of any
knowledge thereof any such holder may have or be otherwise charged with.

          Without in any way limiting the generality of the foregoing paragraph,
the holders of Senior Debt may, at any time and from time to time, without the
consent of or notice to the holders of the Notes, without incurring
responsibility to the holders of the Notes and without impairing or releasing
the subordination provided in this section 14 or the obligations hereunder of
the holders of the Notes to the holders of Senior Debt, do any one or more of
the following: (a) change the manner, place or terms of payment or extend the
time of payment of, or renew, refinance or alter, Senior Debt, or otherwise
amend or supplement in any manner Senior Debt or any instrument evidencing the
same or any agreement under which Senior Debt is outstanding; (b) permit the
Company to borrow, repay and then reborrow any or all the Senior Debt; (c) sell,
exchange, release or otherwise deal with any property pledged, mortgaged or
otherwise securing Senior Debt; (d) release any Person liable in any manner for
the collection of Senior Debt; (e) exercise or refrain from exercising any
rights against the Company and any other Person; and (f) apply any sums received
by such holders to Senior Debt.

          14.9  Reliance On Judicial Order or Certificate of Liquidating Agent.
                --------------------------------------------------------------
Upon any payment or distribution of assets of the Company referred to in this
section 14, the holders of the Notes shall be entitled to rely upon any order or
decree entered by any court of competent jurisdiction in which such Proceeding
is pending, or a certificate of the trustee in bankruptcy, receiver, liquidating
trustee, custodian, assignee for the benefit of creditors, agent or other Person

                                     -39-
<PAGE>

making such payment or distribution, delivered to the holders of Notes, for the
purpose of ascertaining the Persons entitled to participate in such payment or
distribution, the holders of the Senior Debt, the amount thereof or payable
thereon, the amount or amounts paid or distributed thereon and all other facts
pertinent thereto or to this section 14; provided that the foregoing shall apply
                                         --------
only if such court has been apprised of the provisions of this section 14.

          15.  Definitions. As used herein the following terms have the
               -----------
following respective meanings:

          Additional Notes: the meaning specified in section 1.
          ----------------

          Additional Series A Notes: the additional Series A Notes issued by the
          -------------------------
Company in lieu of payment of cash interest on the Series A Notes.

          Additional Series B Notes: the additional Series B Notes issued by the
          -------------------------
Company in lieu of payment of cash interest on the Series B Notes.

          Affiliate: any Person directly or indirectly controlling or controlled
          ---------
by or under common control with another Person or any Subsidiary of such other
Person, including (without limitation) any Person beneficially owning or holding
5% or more of any class of voting securities of another Person or any Subsidiary
of such other Person or any other corporation of which another Person or any
Subsidiary of such other Person owns or holds 10% or more of any class of voting
securities; provided that, for purposes of this definition, "control"
            --------
(including, with correlative meanings, the terms "controlled by" and "under
common control with"), as used with respect to any Person, shall mean the
possession, directly or indirectly, of the power to direct or cause the
direction of the management and policies of such Person, whether through the
ownership of voting securities or by contract or otherwise.

          Assignee: the meaning specified in section 23.3.
          --------

          AT&T: AT&T Corp.
          ----

          AT&T PCS: AT&T Wireless PCS, Inc.
          --------

          Base Case: the meaning specified in section 28.
          ---------

          Benefitted Holder: the meaning specified in section 25.
          -----------------

          Board: the Board of Directors of the Company.
          -----

                                     -40-
<PAGE>

          BTA: a Basic Trading Area as defined in 47 C.F.R. 24.202, as amended
          ---
from time to time.

          Business Day: any day except a Saturday, a Sunday or other day on
          ------------
which commercial banks in New York City  are required or authorized by law to be
closed.

          Capital Lease: as applied to any Person, any lease of any property
          -------------
(whether real, personal or mixed) by such Person as lessee which would, in
accordance with GAAP, be required to be classified and accounted for as a
capital lease on a balance sheet of such Person.

          Capital Lease Obligation: with respect to any Capital Lease, the
          ------------------------
amount of the obligation of the lessee thereunder which would, in accordance
with GAAP, appear on a balance sheet of such lessee in respect of such Capital
Lease.

          Capital Stock: any and all shares, interests, participations or other
          -------------
equivalents (however designated) of capital stock of a corporation, any and all
equivalent ownership interests in a Person (other than a corporation) and any
and all warrants or options to purchase any of the foregoing.

          Cash Equity Investors: the investors referred to on Schedule I to the
          ---------------------
Securities Purchase Agreement.

          Change of Control: (a) the sale, lease, abandonment or other
          -----------------
disposition by the Company of all or substantially all its assets; or (b) at any
time from and after the occurrence of an IPO, (i) any Person or "group" (within
the meaning of Section 13(d)(3) of the Exchange Act), other than AT&T being or
becoming the beneficial owner, directly or indirectly, of more than 20% of the
Voting Stock of the Company; (ii) a majority of the persons who comprised the
Board on the date the IPO is completed shall be replaced, unless such
replacements shall have been approved by at least two-thirds of the Board then
still in office who either were members of such Board on such date or whose
election as a member of such Board was previously so approved; or (iii) the
Company shall fail at all times to own, directly or indirectly, all the
outstanding Capital Stock of its Subsidiaries; provided that the definition set
                                               --------
forth herein shall be subject to section 30.

          Closing: the reference to any Series A Closing or Series B Closing,
          -------
as the context may require.

          Code: the Internal Revenue Code of 1986, as amended from time to time.
          ----

          Commitment Letter: the meaning specified in section 5.1(p).
          -----------------

                                     -41-
<PAGE>

          Commitments: the collective reference to the Series A Note Commitment
          -----------
and the Series B Note Commitment.

          Commonly Controlled Entity: an entity, whether or not incorporated,
          --------------------------
which is under common control with the Company within the meaning of Section
4001 of ERISA or is part of a group which includes the Company and which is
treated as a single employer under Section 414 of the Code.

          Communications Act: The Communications Act of 1934 and the rules and
          ------------------
regulations thereunder, as amended from time to time.

          Competitor: any Person which is engaged directly or indirectly in the
          ----------
ownership or operation of a wireless telecommunications system encompassing at
least one MTA; provided that a Person (a) which is solely a passive investor in
               --------
companies engaged in the same or related business as the Companies or (b) which
purchases or to whom the Company or any agent of the Company offers Senior Debt
of the Company shall not be a Competitor.

          Contractual Obligation: as to any Person, any provision of any
          ----------------------
security issued by such Person or of any agreement, instrument or other
undertaking to which such Person is a party or by which it or any of its
property is bound.

          Consolidated Net Worth: the total of the amounts shown on the balance
          ----------------------
sheet of such Person and its consolidated Subsidiaries, determined on a
consolidated basis in accordance with GAAP, as (a) the par or stated value of
all outstanding Capital Stock of such Person plus (b) paid-in capital or capital
surplus relating to such Capital Stock plus (c) any retained earnings or earned
surplus less (i) any accumulated deficit, (ii) any amounts attributable to
Redeemable Stock and (iii) any amounts attributable to Exchangeable Stock.

          Credit Agreement: a credit agreement among the Company, the banks and
          ----------------
other financial institutions party thereto, as lenders, and the Senior Lender,
as agent, which agreement conforms in all material respects to the terms of the
Principal Terms and Conditions.

          Debt: as applied to any Person (without duplication):
          ----

          (a) any indebtedness for borrowed money which such Person has directly
     or indirectly created, incurred or assumed; and

          (b) any other indebtedness of such Person which is evidenced by a
     note, bond, debenture or similar instrument; and

                                     -42-
<PAGE>

          (c) any indebtedness, whether or not for borrowed money, secured by
     any Lien in respect of property owned by such Person, whether or not such
     Person has assumed or become liable for the payment of such indebtedness;
     and

          (d) any indebtedness, whether or not for borrowed money, including any
     Capital Lease Obligation, with respect to which such Person has become
     directly or indirectly liable and which represents or has been incurred to
     finance the purchase price (or a portion thereof) of any property or
     services or business acquired by such Person, whether by purchase,
     consolidation, merger or otherwise (excluding accounts payable incurred in
     the ordinary course of business, if such accounts payable are not more than
     90 days past due);

          (e) any indebtedness owing to the FCC with respect to payments for
     Licenses; and

          (f) any indebtedness of any other Person of the character referred to
     in subdivision (a), (b), (c), (d) or (e) of this definition with respect to
     which the Person whose Debt is being determined has become liable by way of
     a Guaranty.

          Debt Redemption Amount: in respect of any High Yield Offering, the
          ----------------------
amount which is equal to the excess of (a) the principal amount of the Series B
Notes outstanding over (b) (i) $120,000,000 (as such amount may be increased
                  ----
pursuant to section 28) minus (ii) the aggregate Net Debt Proceeds received by
the Company from all High Yield Offerings.

          Designated Area: the meaning specified in the introduction.
          ---------------

          Disclosure Schedule: the Disclosure Schedule attached as Schedule B
          -------------------
to this Agreement.

          EBITDA: shall mean, for any period of determination, an amount equal
          ------
to the sum of (without duplication) (a) Net Income for such period, after
deduction of (i) all items which should be classified as extraordinary, all
determined in accordance with GAAP; (ii) all insurance proceeds (other than
proceeds of business interruption insurance) received during such period to the
extent, if any, included in Net Income and (iii) tax adjusted gains (or
inclusion of tax adjusted losses) incurred in connection with the disposition of
capital assets, plus (b) all amounts deducted in computing such Net Income in
respect of (i) Interest Expense (after giving effect to all Hedging Agreements
and payments and receipts thereunder), (ii) noncash amortization expense
(including amortization of financing costs, noncurrent assets and non-cash
charges), (iii) depreciation, (iv) income taxes and (v) all other non-cash
expenses.

                                     -43-
<PAGE>

          Eligible Assignee: any Person who is either an accredited investor
          -----------------
(as defined in Rule 501 under the Securities Act) or a Qualified Institutional
Buyer (as defined in Rule 144A under the Securities Act) and is (a) a commercial
bank having total assets in excess of $250,000,000, an insurance company or
other similar financial institution, (b) any other entity which is (or which is
managed by a manager which manages funds which are) primarily engaged in making,
purchasing or otherwise investing in commercial loans or extending, or investing
in extensions of, credit for its own account in the ordinary course of its
business, which has total assets in excess of $250,000,000, (c) a fund
principally engaged in investing in commercial loans, debt securities or other
extensions of credit or (d) a Person which is not a Competitor and has total
assets in excess of $250,000,000.

          Employment Agreement: the meaning set forth in Section 6.10 of the
          --------------------
Securities Purchase Agreement.

          Equity Issuance: the issuance after the Initial Series A Closing Date
          ---------------
of any Capital Stock or the receipt of any capital contribution (other than
capital contributions in an aggregate amount equal to $133,000,000 pursuant to
the Securities Purchase Agreements) by the Company.

          ERISA: the Employee Retirement Income Security Act of 1974, as
          -----
amended from time to time.

          Event of Default: the meaning specified in section 12.
          ----------------

          Exchange Act: the Securities Exchange Act of 1934.
          ------------

          Exchangeable Stock: any Capital Stock which is exchangeable or
          ------------------
convertible into a debt security of the issuer or any of its subsidiaries.

          Expansion Areas: the meaning specified in section 28.
          ---------------

          Expansion Notes: the meaning specified in section 28.
          ---------------

          Extended Payment Terms Facility: the agreement between the Company
          -------------------------------
and the Vendor pursuant to which the Vendor has agreed to permit the Company to
defer payment on all Vendor equipment and services purchased by the Company and
its Subsidiaries under the Procurement Contract to a date that is the earlier of
(a) September 30, 1998 and (b) the closing of the transactions under the Credit
Agreement.

          FCC: The Federal Communications Commission or any successor thereto.
          ---

                                     -44-
<PAGE>

          Financial Statements: the meaning specified in section 6.4(a).
          --------------------

          Financing Transactions: the meaning specified in the introduction.
          ----------------------

          Five-Year No-Call: the meaning specified in section 24(c).
          -----------------

          Fully Diluted Outstanding: with respect to the determination of the
          -------------------------
number of shares of Voting Stock outstanding on any date, the sum of (a) all
shares of Voting Stock outstanding on such date and (b) all shares of Voting
Stock that would be outstanding if all outstanding rights, warrants or options
that may be exercised, exchanged or converted into Voting Stock were exercised,
exchanged or converted on such date.

          Funded Debt: all Debt of the Company and its Subsidiaries other than
          -----------
Debt that ranks pari passu or junior to the Notes.

          Funded Debt Documents: any loan or credit agreement, note, security
          ---------------------
document or other agreement or instrument evidencing, setting forth the terms
of, or creating a lien on or security interest in property or assets which
secures any Funded Debt of a Person.

          GAAP: shall mean generally accepted accounting principles in the
          ----
United States of America consistent with those utilized in preparing the audited
financial statements referred to in section 8.1.

          Governing Documents: as to any Person, its articles or certificate of
          -------------------
incorporation and by-laws, its partnership agreement, its certificate of
formation and operating agreement, or the other organizational or governing
documents of such Person.

          Governmental Authority: any nation or government, any state or other
          ----------------------
political subdivision thereof and any entity exercising executive, legislative,
judicial, regulatory or administrative functions of or pertaining to government.

          Guaranty: as applied to any Person, any direct or indirect liability,
          --------
contingent or otherwise, of such Person with respect to any indebtedness, lease,
dividend or other obligation of another, including, without limitation, any such
obligation directly or indirectly guaranteed, endorsed (otherwise than for
collection or deposit in the ordinary course of business) or discounted or sold
with recourse by such Person, or in respect of which such Person is otherwise
directly or indirectly liable, including, without limitation, any such
obligation in effect guaranteed by such Person through any agreement (contingent
or otherwise) to purchase, repurchase or otherwise acquire such obligation or
any security therefor, or to provide funds for the payment or discharge of such
obligation (whether in the form of loans, advances, stock purchases, capital
contributions or otherwise), or to maintain the solvency or any balance sheet or

                                     -45-
<PAGE>

other financial condition of the obligor of such obligation, or to make payment
for any products, materials or supplies or for any transportation or services
regardless of the non-delivery or nonfurnishing thereof, in any such case if the
purpose or intent of such agreement is to provide assurance that such obligation
will be paid or discharged, or that any agreements relating thereto will be
complied with, or that the holders of such obligation will be protected against
loss in respect thereof. The amount of any Guaranty shall be equal to the
outstanding principal amount of the obligation guaranteed.

          Hedging Agreements: (a) any interest rate protection agreement,
          ------------------
interest rate future, interest rate option, interest rate swap, interest rate
cap or other interest rate hedge or arrangement under which the Company or any
Subsidiary is a party or a beneficiary and (b) any other agreement or
arrangement designed to limit or eliminate the risk and/or exposure of the
Company or any Subsidiary to fluctuations in currency exchange rates.

          High Yield Debt: any Debt issued pursuant to a High Yield Offering.
          ---------------

          High Yield Debt Percentage: the quotient (expressed as a percentage)
          --------------------------
obtained by dividing (a) the aggregate outstanding principal amount of High
Yield Debt outstanding by (b) the sum of (i) High Yield Debt outstanding and
(ii) the aggregate principal amount of loans outstanding and commitments
available under the Credit Agreement.

          High Yield Offering: an offering, either in a registered public
          -------------------
offering or a private placement, of notes, bonds or other securities that are
senior to the Notes and are not issued pursuant to the Credit Agreement.

          Indemnified Party: the meaning specified in section 22.
          -----------------

          Indenture Act: The Trust Indenture Act of 1939, as amended from time
          -------------
to time.

          Initial Series A Closing: the meaning specified in section 3.1(a).
          ------------------------

          Initial Series A Closing Date: the meaning specified in section 3.1.
          -----------------------------

          Initial Series B Closing: the meaning specified in section 3.2(a).
          ------------------------

          Initial Series B Closing Date: the date on which the conditions
          -----------------------------
contained in section 5.2 have been satisfied or waived by you.

          Interest Expense: for any period, the sum of (a) all interest in
          ----------------
respect of all Funded Debt of the Company and its Subsidiaries accrued or
capitalized during such period (whether or not actually paid during such period)
plus (b) the net amount payable (or minus the
- ----

                                     -46-
<PAGE>

net amount receivable) under Hedging Agreements accrued during such period plus
                                                                           ----
(c) all financing or commitment fees in respect of Debt (exclusive of any
transaction or "up front" fees incurred in establishing or entering into any
such Hedging Agreement) of the Company and its Subsidiaries accrued or
capitalized during such period (whether or not actually paid during such
period).

          IPO: the issuance by the Company in an initial registered public
          ---
offering under the Securities Act (other than a registration statement on form
S-8 or any successor form) of shares of its Capital Stock.

          Lenders: the banks and other financial institutions listed as lenders
          -------
from time to time under the Credit Agreement.

          License: any broadband personal communications license issued by the
          -------
FCC in connection with the operation of a System.

          License Purchase Agreement: the License Purchase Agreement dated
          --------------------------
January 23, 1998 between AT&T and the Company.

          Lien: any mortgage, pledge, hypothecation, assignment, deposit
          ----
arrangement, encumbrance, lien (statutory or other), charge or other security
interest or any preference, priority or other security agreement or preferential
arrangement of any kind or nature whatsoever (including, without limitation, any
conditional sale or other title retention agreement and any Capital Lease having
substantially the same economic effect as any of the foregoing), and the filing
of any financial statement under the Uniform Commercial Code or comparable law
of any jurisdiction in respect of any of the foregoing.

          Management Agreement: the Management Agreement between the Company
          --------------------
and Telecorp Management Corp. I, L.L.C. substantially in the form of Exhibit A
to the Securities Purchase Agreement.

          Management Stockholders: Gerald T. Vento and Thomas H. Sullivan.
          -----------------------

          Material Adverse Effect: a material adverse effect on (a) the
          -----------------------
business, operations, affairs, condition (financial or otherwise), properties,
assets of the Company and its Subsidiaries taken as a whole, (b) the ability of
the Company or any of its Subsidiaries to perform its obligations under any of
the Transaction Documents to which it is a party and (c) the validity or
enforceability of this Agreement or the rights or remedies of the holders of
Notes.

                                     -47-
<PAGE>

          Material Subsidiary: any Subsidiary of the Company (a) representing
          -------------------
more than 10% of the EBITDA in the past 12 months of the Company and its
Subsidiaries determined in accordance with GAAP or (b) which holds any Licenses.

          Maximum Rate: The lesser of (a) 12.50% per annum and (b) if the
          ------------
Company shall have completed a High Yield Offering prior to May 1, 2001 (in the
case of the Series A Notes) or May 1, 2000 (in the case of the Series B Notes),
the sum of (i) the aggregate initial yield on the securities offered in the
Company's Qualifying High Yield Offering (including in such calculation the
coupon on any debt securities and any additional yield attributable to any
equity securities or warrants to acquire Capital Stock of the Company or its
Subsidiaries) plus (ii) 0.50%.
              ----

          MTA: a Major Trading Area as defined in 47 C.F.R. 24.202, as amended
          ---
from time to time.

          Multiemployer Plan: any Plan which is a multiemployer plan (as such
          ------------------
term is defined in section 4001(a)(3) of ERISA).

          Net Debt Proceeds: with respect to any High Yield Offering by the
          -----------------
Company or any Subsidiary after the Initial Series B Closing Date, the excess
of:  (a) the gross cash proceeds received by the Company or such Subsidiary from
such Offering, over (b) all reasonable fees and expenses incurred in connection
with such offering (including customary underwriting commissions and legal,
investment banking, brokerage and accounting, trustee fees and other
professional fees, sales commission and disbursements) which have not been paid
to Affiliates of the Company in connection therewith.

          Net Income: for any period, net income (or deficit) of the Company
          ----------
and its Subsidiaries for such period, determined on a consolidated basis in
accordance with GAAP.

          Net Securities Proceeds: with respect to any Equity Issuance by the
          -----------------------
Company or any Subsidiary after the Initial Series A Closing Date, the excess
of: (a) the gross cash proceeds received by the Company or such Subsidiary from
such Issuance over (b) all reasonable fees and expenses incurred in connection
with such Issuance (including customary underwriting commissions and legal,
investment banking, brokerage and accounting fees and other professional fees,
sales commission and disbursements) which have not been paid to Affiliates of
the Company in connection therewith.

          Network Membership License Agreement: the Network Membership License
          ------------------------------------
Agreement between AT&T and the Company substantially in the form of Exhibit B to
the Securities Purchase Agreement.

                                     -48-
<PAGE>

          Non-Excluded Taxes: the meaning specified in section 16.1.
          ------------------

          Offering: (a) any public offering and (b) any public offering or
          --------
private placement of Notes or Refinancing Securities that is underwritten for
resale pursuant to Rule 144A, Regulation S or otherwise under the Securities Act
to 10 or more beneficial holders.

          Officers' Certificate: with respect to the Company, a certificate
          ---------------------
executed on behalf of the Company by the Chairman of the Board of Directors (if
an officer) or its President or one of its Vice Presidents and its Treasurer or
one of its Assistant Treasurers.

          Participants: the meaning specified in section 23.2.
          ------------

          Payment Blockage Period: the meaning specified in section 14.2.
          -----------------------

          Payment Dates: the collective reference to the Series A Payment Dates
          -------------
and the Series B Payment Dates.

          PBGC: the Pension Benefit Guaranty Corporation or any governmental
          ----
authority succeeding to any of its functions.

          Permit: any permit, approval, authorization, certificate, license,
          ------
variance, filing or permission required by or from any Governmental Authority.

          Person: an individual, a partnership, an association, a joint
          ------
venture, a corporation, a limited liability Company, a business, a trust, an
unincorporated organization or a government or any department, agency or
subdivision thereof.

          Plan: any employee benefit plan which is covered by ERISA and in
          ----
respect of which the Company or any Subsidiary is an "employer" as defined in
Section 3(5) of ERISA other than a Multiemployer Plan.

          POPs: as of any date, with respect to any BTA or MTA, the population
          ----
of such BTA or MTA as such number is published in the then most recently issued
retail marketing reports by Claritas, Inc. of Arlington, Virginia, or if
Claritas, Inc. is not reasonably acceptable to the Vendor or the Company,
another Person mutually acceptable to the Vendor and the Company.

          Potential Event of Default: any condition or event which, with notice
          --------------------------
or lapse of time or both, would become an Event of Default.

          Principal Terms and Conditions: the meaning specified in section
          ------------------------------
5.1(p).

                                     -49-
<PAGE>

          Proceeds Redemption Amount: the meaning specified in section 10.4.
          --------------------------

          Proceeding: the meaning specified in section 14.2.
          ----------

          Procurement Contract: the meaning specified in the introduction and
          --------------------
shall include any assignment thereof pursuant to the terms of such Agreement.

          Qualifying High Yield Offering: a High Yield Offering that results in
          ------------------------------
Net Debt Proceeds to the Company of at least $100,000,000.

          Redeemable Stock: any Capital Stock that by its terms or otherwise is
          ----------------
required to be redeemed prior to the maturity of the Notes or is redeemable at
the option of the holder thereof at any time prior to maturity of the Notes.

          Refinancing Securities: securities issued by the Company which are
          ----------------------
exchanged by the Company for Notes held by you either (i) upon your request in
connection with a Remarketing Transfer involving at least 50% of then
outstanding aggregate principal amount of the Notes and are issued pursuant to
an indenture reasonably satisfactory to the Company and you or (ii) in a
transaction constituting a Permitted Refinancing Transaction.

          Register: the meaning specified in section 23.4.
          --------

          Related Agreements: the collective reference to the Resale Agreement,
          ------------------
Management Agreement, Roaming Agreement, Network Membership License Agreement,
License Purchase Agreement, Employment Agreement and Stockholders Agreement.

          Remarketing Notice: the meaning specified in section 24(b).
          ------------------

          Remarketing Transfer: the meaning specified in section 24.
          --------------------

          Reportable Event: any of the events set forth in section 4043(c) of
          ----------------
ERISA, other than those events as to which the thirty day notice period is
waived under sections 13, 14, 16, 18, 19 or 20 of PBGC Reg. (S)4043.

          Required Holders: at any time, (a) until the first date upon which
          ----------------
you hold Notes and Unused Commitments in an aggregate amount less than 50% of
the aggregate Notes and Unused Commitments then outstanding, holders holding a
majority of the then outstanding Notes and Unused Commitments not held by you
and (b) thereafter, holders of Notes and Unused Commitments in an aggregate
amount equal to at least a majority of the aggregate amount of Notes and Unused
Commitments then outstanding.

                                     -50-
<PAGE>

          Requirement of Law: as to any Person, the Governing Documents of such
          ------------------
Person, and any law, treaty, rule, regulation or Permit or determination of an
arbitrator or a court or other Governmental Authority, in each case applicable
to or binding upon such Person or any of its property or to which such Person or
any of its property is subject.

          Resale Agreement: the Resale Agreement between the Company and AT&T
          ----------------
substantially in the form of Exhibit C to the Securities Purchase Agreement.

          Responsible Officer: the chief executive officer and the president of
          -------------------
the Company or, with respect to financial matters, the chief financial officer
or treasurer of the Company.

          Restricted Payment: (a) any dividend or other distribution, direct or
          ------------------
indirect, on account of any shares of any class of stock of the Company or any
Subsidiary now or hereafter outstanding, except a dividend payable solely in
shares of Common Stock of the Company; (b) any redemption, retirement, purchase
or other acquisition, direct or indirect, of any shares of any class of stock of
the Company or any Subsidiary now or hereafter outstanding, or of any warrants,
rights or options to acquire any such shares, except to the extent that the
consideration therefor consists of shares of stock of the Company; and (c) any
payment of any interest on or principal or premium of, and any redemption,
retirement, purchase or other acquisition, direct or indirect, of, any Debt of
the Company or any Subsidiary which ranks pari passu with or junior to the
Notes.

          Roaming Agreement: the Intercarrier Roamer Services Agreement between
          -----------------
the Company and AT&T substantially in the form of Exhibit F to the Securities
Purchase Agreement.

          Securities Act: the Securities Act of 1933.
          --------------

          Securities Payment: the meaning specified in section 14.2(a).
          ------------------

          Securities Purchase Agreement. Securities Purchase Agreement dated as
          -----------------------------
of January 23, 1998 among AT&T, TWR, the Cash Equity Investors, the investors
referred to on Schedule II.A thereto, the investors referred to on Schedule II.B
thereto and the Company.

          Security Agreement. the Security Agreement between the Company and
          ------------------
you substantially in the form of Exhibit D hereto.

          Senior Debt: (i) all Debt of the Company for money borrowed,
          -----------
including principal, premium, if any, interest thereon (including, without
limitation, any interest accruing subsequent to the filing of a petition of
other action concerning bankruptcy or other similar

                                     -51-
<PAGE>

proceedings), reimbursements and indemnification amounts, fees, expenses or
other amounts relating to such Debt (other than any such Debt which by its terms
is stated to be subordinate to or pari passu with the Notes); and (ii) renewals,
extensions, refundings, restructurings, amendments and modifications of any of
the foregoing Debt

          Senior Debt Agreement: with respect to any Senior Debt, the agreement
          ---------------------
or instrument pursuant to which such Senior Debt is outstanding.

          Senior Lender: the meaning specified in section 5.1(p).
          -------------

          Senior Non-Monetary Default: the meaning specified in section 14.3.
          ---------------------------

          Senior Payment Default: the meaning specified in section 14.3.
          ----------------------

          Series A Closing: the meaning specified in section 3.1(b).
          ----------------

          Series A Closing Date: the meaning specified in section 3.1(b).
          ---------------------

          Series A Coupon Rate: the meaning specified in section 4.2.
          --------------------

          Series A Final Maturity Date: the first to occur of (a) the date that
          ----------------------------
is six months after the scheduled maturity date under the Company's initial
Qualifying High Yield Offering or, at the election of the Required Holders of
Series A Notes, the Company's initial High Yield Offering and (b) May 1, 2012.

          Series A Notes: the meaning specified in section 1.
          --------------

          Series A Note Commitment: your commitment to purchase Series A Notes
          ------------------------
in an original aggregate principal amount not to exceed $40,000,000 which amount
shall be decreased on a dollar for dollar basis to the extent the Company
receives Net Securities Proceeds from Equity Issuances in an aggregate amount
which exceeds $130,000,000 as such amount may be modified pursuant to section
28.

          Series A Note Commitment Termination Date: The earliest to occur of
          -----------------------------------------
(a) January 1, 2000 or (b) such earlier date on which the Series A Note
Commitment shall terminate pursuant to the terms of the Agreement.

          Series A Notes: the meaning specified in section 1.
          --------------

          Series B Availability Period: the period commencing on the earlier to
          ----------------------------
occur of (a) September 30, 1998, and (b) the consummation by the Company of a
High Yield Offering and

                                     -52-
<PAGE>

continuing to but excluding the earlier of (i) January 1, 2000 and (ii) the date
on which the Company completes one or more High Yield Offerings the proceeds of
which aggregate $120,000,000 and, in any case, such earlier date as the Series B
Note Commitment shall terminate as provided herein.

          Series B Closing: the meaning specified in section 3.2(b).
          ----------------

          Series B Closing Date: the meaning specified in section 3.2(b).
          ---------------------

          Series B Coupon Rate: as defined in section 4.3.
          --------------------

          Series B Final Maturity Date: the first to occur of (a) the date that
          ----------------------------
is six months after the scheduled maturity date under the Company's initial
Qualifying High Yield Offering or, at the election of the Required Holders of
Series B Notes, the Company's initial High Yield Offering and (b) May 1, 2012.

          Series B Notes: the meaning specified in section 1.
          --------------

          Series B Note Commitment: your commitment to purchase Series B Notes
          ------------------------
in an original aggregate principal amount equal to $40,000,000 which amount
shall be decreased on a dollar for dollar basis to the extent the Company
receives Net Debt Proceeds from High Yield Offerings in an amount which exceeds
$80,000,000.

          Series B Note Commitment Termination Date: January 1, 2000 or such
          -----------------------------------------
earlier date on which the Series B Note Commitment shall terminate pursuant to
the terms of this Agreement.

          Series B Payment Date: the meaning specified in section 4.3.
          ---------------------

          Single Employer Plan: any Plan which is covered by Title IV of ERISA,
          --------------------
but which is not a Multiemployer Plan.

          Stockholders Agreement: the Stockholders Agreement among the Company,
          ----------------------
AT&T, the Cash Equity Investors, and the other investors party thereto
substantially in the form of Exhibit G to the Securities Purchase Agreement.

          Subsidiary: with respect to any Person, any corporation at least 50%
          ----------
(by number of votes) of the Voting Stock of which is at the time owned by such
Person or by one or more Subsidiaries or by such Person and one or more
Subsidiaries.  Unless otherwise indicated, all references to Subsidiaries shall
be deemed references to the Company's Subsidiaries.

                                     -53-
<PAGE>

          System: as to any Person, assets constituting a radio communications
          ------
system authorized under the rules for wireless communications services
(including any license and the network, marketing, distribution, sales, customer
interface and operations functions relating thereto) owned and operated by such
Person.

          Telecommunications Act: The Telecommunication Act of 1996 and the
          ----------------------
rules and regulations promulgated thereunder, as amended from time to time.

          TeleCorp Holdings: TeleCorp Holding Corp., Inc., a Delaware
          -----------------
corporation.

          Transaction Documents: the collective reference to the Securities
          ---------------------
Purchase Agreement, the Related Agreements, the Procurement Contract, the Credit
Agreement and each of the other agreements, instruments or other documents
delivered by the Company or any other Person in connection with the consummation
of the Financing Transactions.

          Transferee: the meaning specified in section 23.5.
          ----------

          TWR: TWR Cellular, Inc., a Maryland corporation.
          ---

          Unused Commitment: at any time as to any holder, an amount equal to
          -----------------
the excess, if any, of (a) the amount of the Commitment of such holder over (b)
the aggregate principal amount of Notes purchased by such holder, and in each
case excluding Additional Notes.

          Vendor: the meaning specified in the introduction.
          ------

          Voting Stock: with reference to any corporation, stock of any class
          ------------
or classes (or equivalent interests), if the holders of the stock of such class
or classes (or equivalent interests) are ordinarily, in the absence of
contingencies, entitled to vote for the election of the directors (or Persons
performing similar functions) of such corporation, even though the right so to
vote has been suspended by the happening of such a contingency.

          Wholly-Owned: as applied to any Subsidiary, a Subsidiary all the
          ------------
outstanding shares (other than directors' qualifying shares, if required by law)
of every class of stock of which are at the time owned by the Company or by one
or more Wholly-Owned Subsidiaries or by the Company and one or more Wholly-Owned
Subsidiaries.

          16.  Tax Matters.
               -----------

          16.1  Taxes. (a) All payments made by the Company under this Agreement
                -----
and the Notes shall be made free and clear of, and without deduction or
withholding for or on account

                                     -54-
<PAGE>

of, any present or future income, stamp or other taxes, levies, imposts, duties,
charges, fees, deductions or withholdings, now or hereafter imposed, levied,
collected, withheld or assessed by any Governmental Authority, excluding net
income taxes and franchise or overall gross receipts taxes imposed on any holder
(or Transferee) as a result of a present or former connection between such
holder (or Transferee) and the jurisdiction of the Governmental Authority
imposing such tax or any political subdivision or taxing authority thereof or
therein (other than any such connection arising solely from such holder (or
Transferee) having executed, delivered or performed its obligations or received
a payment under, or enforced, this Agreement or the Notes). If any such non-
excluded taxes, levies, imposts, duties, charges, fees, deductions or
withholdings ("Non-Excluded Taxes") are required to be withheld from any amounts
               ------------------
payable to any holder (or Transferee) hereunder or under the Notes, the amounts
so payable to such holder (or Transferee) shall be increased to the extent
necessary to yield to such holder (or Transferee) (after payment of all Non-
Excluded Taxes) interest or any such other amounts payable hereunder at the
rates or in the amounts specified in this Agreement and the Notes; provided that
                                                                   --------
the Company shall not be required to increase any such amounts payable to any
holder (or Transferee) that is not organized under the laws of the United States
of America or a state thereof if such holder (or Transferee) fails to comply
with the requirements of paragraph (b) of this section. Whenever any Non-
Excluded Taxes are payable by the Company, as promptly as possible thereafter,
the Company shall send to such holder (or Transferee) a certified copy of an
original official receipt received by the Company showing payment thereof. If
the Company fails to pay any Non-Excluded Taxes when due to the appropriate
taxing authority or fails to remit to the holder (or Transferee) the required
receipts or other required documentary evidence, the Company shall indemnify
such holder or (Transferee) for any incremental taxes, interest or penalties
that may become payable by any holder or (Transferee) as a result of any such
failure. The covenants in this section shall survive the termination of this
Agreement and the payment of the Notes and payment of the Obligations hereunder.

          (b)  Each holder (or Transferee) of any Notes shall:

               (i)  in the case of a holder (or Transferee) that is a "bank"
     under Section 881(c)(3)(A) of the Code;

               (A)  on or before the date on which the first payment becomes
          payable to it hereunder or under any Note (or in the case of a
          Participant, on or before the date such Participant becomes a
          Participant hereunder) deliver to the Company (1) in the case of a
          holder (or Transferee) that is not incorporated under the laws of the
          United States or any State thereof, two duly completed copies of
          United States Internal Revenue Service Form 1001 or 4224, or successor
          applicable form, as the case may be, and an Internal Revenue Service
          Form W-8 or W-9, or successor applicable form, as the case may be, and
          (2) in the case of any other holder (or

                                     -55-
<PAGE>

          Transferee), an Internal Revenue Service Form W-9, or successor
          applicable form;

               (B)    deliver to the Company two further copies of any such form
          or certification on or before the date that any such form or
          certification expires or becomes obsolete and after the occurrence of
          any event requiring a change in the most recent form previously
          delivered by it to the Company, and

               (C)    obtain such extensions of time for filing and timely
          complete and deliver such forms or certifications as may reasonably be
          requested by the Company;

               (ii)   in the case of a holder (or Transferee) that is not a
     "bank" under Section 881(c)(3)(A) of the Code:

               (A)    on or before the date on which the first payment becomes
          payable to it hereunder or under any Note (or, in the case of a
          Participant, on or before the date such Participant becomes a
          Participant hereunder) deliver to the Company (1) in the case of a
          holder (or Transferee) that is not organized under the laws of the
          United States or any state thereof,  (I) a statement under penalties
          of perjury that such holder (or Transferee) (x) is not a "bank" under
          Section 881(c)(3)(A) of the Code, is not subject to regulatory or
          other legal requirements as a bank in any jurisdiction, and has not
          been treated as a bank for purposes of any tax, securities law or
          other filing or submission made to any Governmental Authority, any
          application made to a rating agency or qualification for any exemption
          from tax, securities law or other legal requirements, (y) is not a 10-
          percent shareholder of the Company within the meaning of Section
          881(c)(3)(B) of the Code and (z) is not a controlled foreign
          corporation receiving interest from a related person within the
          meaning of Section 881(c)(3)(C) of the Code and (II) a properly
          completed and duly executed Internal Revenue Service Form W-8 or
          applicable successor form, and where applicable, an Internal Revenue
          Form W-9 or applicable successor form, and (2) in the case of any
          other holder (or Transferee), an Internal Revenue Service Form W-9 or
          successor applicable form.

               (B)    deliver to the Company two further properly completed and
          duly executed copies of said form or certification or any successor
          applicable form or certification on or before the date that any such
          form or certification expires or becomes obsolete or after the
          occurrence of any event requiring a change in the most recent form or
          certification previously delivered by it to the Company or upon the
          request of the Company; and

                                     -56-
<PAGE>

               (C) obtain such extensions of time for filing and timely complete
          and deliver such forms or certifications as may be reasonably
          requested by the Company;

unless in any such case any change in treaty, law or regulation has occurred
subsequent to the date such holder (or Transferee) became a party to this
Agreement (or, in the case of a Participant, the date such Participant became a
Participant hereunder) which renders all such forms inapplicable or which would
prevent such holder from properly completing and executing any such form with
respect to it and such holder (or Transferee) so advises the Company in writing
no later than 15 calendar days before any payment hereunder or under any Note is
due.  Each such holder (and each Transferee) shall certify (i) in the case of a
Form 1001 or 4224 or in the case of a holder providing certification pursuant to
section 16.1(b)(ii), that it is entitled to receive payments under this
Agreement without deduction or withholding of any United States federal income
taxes and (ii) in the case of a Form W-8 or W-9 delivered pursuant to section
16.1(b), that it is entitled to an exemption from United States backup
withholding tax.  Each Person that shall become a holder or a Participant
pursuant to section 23 shall, upon the effectiveness of the related transfer,
provide all of the forms and statements required pursuant to this section;
provided that, in the case of a Participant, such Participant shall furnish all
- --------
such required forms and statements to the holder from which the related
participation shall have been purchased.

          (c)  Notwithstanding the foregoing paragraphs  (a) and (b) of this
section 16.1, the Company shall only be required to pay any additional amounts
to any holder (or Transferee) in respect of any amounts pursuant to such
paragraph (a) if such holder (or Transferee), in addition to complying with the
requirements of paragraph (b), shall have taken such other steps as such holder
or Transferee may determine in the exercise of its business judgment (utilizing
criteria it determines to be appropriate) are reasonably available to it under
applicable laws and any applicable tax treaty or convention to obtain an
exemption from, or reduction (to the lowest applicable rate) of, such tax (it
being understood that no holder shall be required to take any action that it
concludes could subject it to heightened audit scrutiny or extend the period
that such holder's tax returns remain open for review by any taxing authority).

          (d)  Any claim by a holder (or Transferee) for payment from the
Company of any amounts under this section 16.1 shall be made within ninety (90)
days after such holder (or Transferee) determines the exact amount of any such
claim.

          17.  Notes held by Company, etc., Deemed Not Outstanding. For the
               ---------------------------------------------------
purposes of determining whether the holders of the Notes of the requisite
principal amount at the time outstanding have taken any action authorized by
this Agreement with respect to the giving of consents or approvals or with
respect to ac  celeration upon an Event of Default, any Notes

                                     -57-
<PAGE>

directly or indirectly owned by any of the Company or any Subsidiary or
Affiliates shall be disregarded and deemed not to be outstanding.

          18.   Payments on Notes.
                -----------------

          18.1  Place of Payment. Payments of principal, premium, if any, and
                ----------------
interest becoming due and payable on the Notes shall be made at the principal
office of Chase Manhattan Bank, in the Borough of Manhattan, the City and State
of New York, unless the Company, by written notice to each holder of any Notes,
shall designate the principal office of another bank or trust company in such
Borough as such place of payment, in which case the principal office of such
other bank or trust company shall thereafter be such place of payment.

          18.2  Home Office Payment. So long as you or your nominee shall be the
                -------------------
holder of any Note, and notwithstanding anything contained in section 18.1 or in
such Note to the contrary, the Company, at its election, shall pay all sums
becoming due on such Note for principal, premium, if any, and interest
(including pay-in-kind interest) by the method and at the address specified for
such purpose in Schedule A, or by such other method or at such other address as
you shall have from time to time specified to the Company in writing for such
purpose, without the presentation or surrender of such Note or the making of any
notation thereon, except that any Note paid or prepaid in full shall be
surrendered to the Company at its principal office or at the place of payment
maintained by the Company pursuant to section 18.1 for cancellation. Prior to
any sale or other disposition of any Note held by you or your nominee you will,
at your election, either endorse thereon the amount of principal paid thereon
and the last date to which interest has been paid thereon or surrender such Note
to the Company in exchange for a new Note or Notes pursuant to section 23.7.
Each transferee of a Note, as a condition to completing such transfer shall
agree that the Company, at its election, may make payments to such transferee in
the manner contemplated in the first sentence hereof. The Company will afford
the benefits of this section 18.2 to any institutional investor which is the
direct or indirect transferee of any Note purchased by you under this Agreement
and which has made the same agreement relating to such Note as you have made in
this section 18.2.

          18.3  Expenses, etc. Whether or not the transactions contemplated by
                --------------
this Agreement shall be consummated, the Company will pay all reasonable
expenses in connection with such transactions and in connection with any
amendments or waivers (whether or not the same become effective) under or in
respect of this Agreement, the Notes, including, without limitation: (a) the
cost and expenses of preparing and reproducing this Agreement and the Notes, of
furnishing all opinions by counsel for the Company (including any opinions
requested by your special counsel as to any legal matter arising hereunder) and
all certificates on behalf of the Company, and of the Company's performance of
and compliance with all agreements and conditions contained herein on its part
to be performed or complied with; (b) the cost of delivering to your principal
office, insured to your satisfaction, the Notes sold to you hereunder

                                     -58-
<PAGE>

and any Notes delivered to you upon any substitution of Notes pursuant to
section 23 of this Agreement, and of your delivering any Notes, insured to your
satisfaction, upon any such substitution; (c) the reasonable expenses and
disbursements of special counsel for the holders of the Notes in connection with
such transactions and any such amendments or waivers; and (d) the reasonable
out-of-pocket expenses incurred by you in connection with such transactions and
any such amendments or waivers. The Company also will pay, and will save you and
each holder of any Notes harmless from, all claims in respect of the fees, if
any, of brokers and finders and, subject to section 16, any and all liabilities
with respect to any taxes (including interest and penalties but excluding taxes
measured by or payable with respect to gross or net income) which may be payable
in respect of the execution and delivery of this Agreement, the issue of the
Notes and any amendment or waiver under or in respect of this Agreement and the
Notes. The obligation of the Company under this section 18.3 shall survive any
disposition or payment of the Notes and the termination of this Agreement.

          19.  Survival of Representations and Warranties. All representations
               ------------------------------------------
and warranties contained in this Agreement or made in writing by or on behalf of
the Company in connection with the transactions contemplated by this Agreement
shall survive the execution and delivery of this Agreement, any investigation at
any time made by you or on your behalf, the purchase of the Notes by you under
this Agreement and any disposition or payment of the Notes. All statements
contained in any certificate or other instrument delivered by or on behalf of
the Company pursuant to this Agreement shall be deemed representations and
warranties of the Company under this Agreement. The provisions of this section
19 are subject to section 30.

          20.  Amendments and Waivers. Any term of this Agreement or of the
               ----------------------
Notes may be amended and the observance of any term of this Agreement or of the
Notes may be waived (either generally or in a particular instance and either
retroactively or prospectively) only with the written consent of  the Company
and the Required Holders (subject to section 17); provided that, without the
                                                  --------
prior written consent of the holders of all the Notes at the time outstanding
(subject to section 17), no such amendment or waiver shall (a) change the
maturity or the principal amount of, or reduce the rate or change the time of
payment of interest on, or change the amount or the time of payment of any
principal or premium payable on any prepayment of, any Note, (b) reduce the
percentage of the principal amount of the Notes the holders of which are
required to consent to any such amendment or waiver, or (c) change the
percentage of the principal amount of the Notes the holders of which may declare
the Notes to be due and payable as provided in section 12. Any amendment or
waiver effected in accordance with this section 20 shall be binding upon each
holder of any Note at the time outstanding, each future holder of any Note and
the Company.

          21.  Notices, etc.  Except as otherwise provided in this Agreement,
               -------------
notices and other communications under this Agreement shall be in writing and
shall be delivered by hand or courier service, or mailed by registered or
certified mail, return receipt requested, addressed,

                                     -59-
<PAGE>

(a) if to you, at the address set forth in Schedule A or at such other address
as you shall have furnished to the Company in writing, except as otherwise
provided in section 18 with respect to payments on Notes held by you or your
nominee, or (b) if to any other holder of any Note, at such address as such
other holder shall have furnished to the Company in writing, or, until any such
other holder so furnishes to the Company an address, then to and at the address
of the last holder of such Note who has furnished an address to the Company, or
(c) if to the Company, at its address set forth at the beginning of this
Agreement, to the attention of General Counsel and Chief Financial Officer, with
copies to McDermott, Will & Emery, 50 Rockefeller Center, New York, New York,
Attention: Jeffrey Dunetz, Esq. or at such other address, or to the attention of
such other officer, as the Company shall have furnished to you and each such
other holder in writing. Any notice so addressed and delivered by hand or
courier shall be deemed to be given when received, and any notice so addressed
and mailed by registered or certified mail shall be deemed to be given three
Business Days after being so mailed.

          22.  Indemnification. The Company will indemnify and hold harmless
               ---------------
each holder of Notes and each person who controls a holder within the meaning of
the Securities Act or the Exchange Act and each of the holder's subsidiaries and
each holder's respective directors, officers, employees, agents and advisors
(any and all of whom are referred to as the "Indemnified Party") from and
against any and all losses, claims, damages and liabilities, whether joint or
several (including all legal fees or other expenses reasonably incurred by
counsel for any Indemnified Party in connection with the preparation for or
defense of any pending or threatened third party claim, action or proceeding,
whether or not resulting in any liability), to which such Indemnified Party may
become subject (whether or not such Indemnified Party is a party thereto) under
any applicable federal or state law or otherwise, caused by or arising out of,
the Financing Transactions, or this Agreement or any transaction contemplated
hereby or thereby (including without limitation, any of the foregoing relating
to the violation of, non-compliance with or liability under any Environmental
Law applicable to the operations of the Company or its Subsidiaries), other
than, with respect to any Indemnified Party, losses, claims, damages or
liabilities that are the result of the gross negligence or willful misconduct of
such Indemnified Party.

          Promptly after receipt by an Indemnified Party of notice of any claim,
action or proceeding with respect to which an Indemnified Party is entitled to
indemnity hereunder, such Indemnified Party will notify the Company of such
claim or the commencement of such action or proceeding; provided that the
                                                        --------
failure of an Indemnified Party to give notice as provided herein shall not
relieve the Company of its obligations under this section 22 with respect to
such Indemnified Party, except to the extent that the Company is actually
prejudiced by such failure. The Company will assume the defense of such claim,
action or proceeding and will employ counsel reasonably satisfactory to the
Indemnified Party and will pay the fees and expenses of such counsel.
Notwithstanding the preceding sentence, the Indemnified Party will be entitled,
at the expense of the Company, to employ counsel separate from counsel for the
Company and for

                                     -60-
<PAGE>

any other party in such action if the Indemnified Party reasonably determines
that a conflict of interest or other reasonable basis exists which makes
representation by counsel chosen by the Company not advisable, but the Company
will not be obligated to pay the fees and expenses of more than one counsel for
all Indemnified Parties.

          The agreements in this section shall survive repayment of the Notes
and all other amounts payable hereunder.

          23.  Successors and Assigns; Participations; Assignments; Replacement
               ----------------------------------------------------------------
of Notes.
- --------

          23.1  Successors and Assigns. This Agreement shall be binding upon and
                ----------------------
inure to the benefit of the Company, the holders and their respective successors
and assigns, except that the Company may not assign or transfer any of its
rights or obligations under this Agreement without the prior written consent of
each holder.

          23.2  Participations. Subject to section 24, any holder may, in
                --------------
accordance with applicable law, including compliance with applicable federal and
state securities and "blue sky" laws and regulations, at any time sell to one or
more Eligible Assignees ("Participants") participating interests in any Note
owned by such holder, the Commitments of such holder or any other interest of
such holder hereunder. In the event of any such sale by a holder of a
participating interest to a Participant, such holder's obligations under this
Agreement to the Company and any other holder shall remain unchanged, such
holder shall remain solely responsible for the performance thereof, such holder
shall remain the holder of any such Note for all purposes under this Agreement,
and the Company shall continue to deal solely and directly with such holder in
connection with such holder's rights and obligations under this Agreement.  No
holder shall be entitled to create in favor of any Participant, in the
participation  agreement pursuant to which such Participant's participating
interest shall be created or otherwise, any right to vote on,  consent to or
approve any matter relating to this Agreement except for those specified in
clauses (a) and (b) of section 20.  The Company also agrees that each
Participant shall be entitled to the benefits of section 16 with respect to its
participation in the Commitments and the Notes outstanding from time to time as
if it were a holder; provided that, in the case of section 16, such Participant
                     --------
shall have complied with the requirements of such section and provided,
                                                              --------
further, that no Participant shall be entitled to receive  any greater amount
- -------
pursuant to such section than the transferor holder would have been entitled to
receive in respect of the amount of the participation transferred by such
transferor holder to such Participant had no such transfer occurred.

          23.3  Assignments. Subject to section 24, any holder may, in
                -----------
accordance with applicable law, including compliance with applicable federal and
state securities and "blue sky" laws and regulations, at any time and from time
to time assign to any other holder or to an

                                     -61-
<PAGE>

Eligible Assignee (an "Assignee") all or any part of its Notes and Commitments
pursuant to an assignment and acceptance executed by such Assignee and such
assigning holder and delivered to the Company for acceptance and recording in
the Register; provided that, in the case of any such assignment to an Eligible
              --------
Assignee, the sum of the aggregate principal amount of the Notes and the
aggregate amount of Unused Commitment being assigned is not less than $5,000,000
(or such lesser amount as constitutes the assigning holder's entire aggregate
principal amount of Notes and Unused Commitment) and, if such assignment is of
less than all of the Notes and Commitments of the assigning holder, the sum of
the aggregate principal amount of the assigning holder's remaining Notes and the
aggregate amount of Unused Commitment is not less than $5,000,000 (or such
lesser amount as may be agreed to by the Company). Upon such execution,
delivery, acceptance and recording, from and after the effective date determined
pursuant to such Assignment and Acceptance, (i) the Assignee thereunder shall be
a party hereto and, to the extent provided in such Assignment and Acceptance,
have the rights and obligations of a holder hereunder, and (ii) the assigning
holder thereunder shall, to the extent provided in such Assignment and
Acceptance, be released from its obligations under this Agreement (and, in the
case of an Assignment and Acceptance covering all or the remaining portion of an
assigning holder's rights and obligations under this Agreement, such assigning
holder shall cease to be a party hereto but shall be entitled to the benefits of
section 16 in respect of the period prior to such assignment).

          23.4  Register. The Company shall maintain a copy of each Assignment
                --------
and Acceptance delivered to it and a register (the "Register") for the
recordation of the names and addresses of the holders, the registered owners of
the Obligations evidenced by the Notes and the principal amount of the Notes
owing to each holder from time to time. The entries in the Register shall be
prima facie evidence of the accuracy thereof, and the Company and the holders
shall treat each Person whose name is recorded in the Register as the owner of a
Note hereunder as the owner thereof for all purposes of this Agreement,
notwithstanding any notice to the contrary. Any assignment or transfer of all or
part of any Note shall be registered on the Register only upon surrender for
registration of assignment or transfer of such Note, duly endorsed by (or
accompanied by a written instrument of assignment or transfer duly executed by)
the holder thereof, and thereupon one or more new Note(s) in the same aggregate
principal amount shall be issued to the designated Assignee(s) and the old Note
shall be returned to the Company marked "canceled". The Register shall be
available for inspection by any holder at any reasonable time and from time to
time upon reasonable prior notice.

          23.5  Disclosure of Information in Connection with a Transfer.
                -------------------------------------------------------
Subject to section 30, the Company authorizes each holder to disclose to any
Participant or Assignee (each, a "Transferee") and any prospective Transferee
and its advisers and agents, any and all information in such holder's possession
concerning the Company and its Subsidiaries which has been delivered to such
holder by or on behalf of the Company pursuant to this Agreement or which has
been delivered to such holder by or on behalf of the Company in connection with
such

                                     -62-
<PAGE>

holder's credit evaluation of the Company and its Subsidiaries prior to becoming
a party to this Agreement; provided that no such disclosure may be made unless
                           --------
such Transferee or prospective Transferee and its advisers and agents shall have
executed and delivered to the Company an agreement reasonably acceptable to the
Company to keep such information confidential.

          23.6  Assignment to Federal Reserve Bank. Nothing contained herein
                ----------------------------------
shall prohibit assignments creating security interests, including, without
limitation, any pledge or assignment by a holder of any Note to any Federal
Reserve Bank in accordance with applicable law.

          23.7   Replacement of Notes. Upon receipt of evidence reasonably
                 --------------------
satisfactory to the Company of the loss, theft, destruction or mutilation of any
Note and, in the case of any such loss, theft or destruction of any Note, upon
delivery of an indemnity bond in such reasonable amount as the Company may
determine (or, in the case of any Note held by you or another institutional
holder or your or its nominee, of an indemnity agreement from you or such other
holder) or, in the case of any such mutilation, upon the surrender of such Note
for cancellation to the Company at its principal office, the Company at its
expense will execute and deliver, in lieu thereof, a new Note in the unpaid
principal amount of such lost, stolen, destroyed or mutilated Note, dated so
that there will be no loss of interest on such Note and otherwise of like tenor.
Any Note in lieu of which any such new Note has been so executed and delivered
by the Company shall not be deemed to be an outstanding Note for any purpose of
this Agreement.

          24.  Remarketing
               -----------

          (a)  You shall not engage in any remarketing efforts (i) prior to the
earlier of 9 months after the consummation of the Company's initial High Yield
Offering and January 1, 2001, with respect to any assignment of any Unused
Commitment related to the Series A Note Commitment or any Series A Notes and
(ii) prior to the earlier of 9 months after the consummation of the Company's
initial High Yield Offering and June 30, 2000, with respect to any assignment of
any Unused Commitment related to the Series B Note Commitment or any Series B
Notes except as provided in this section.  Prior to such time, you may request
that the Company shorten the period in which you are restricted from remarketing
the Notes.  The Company will consider any such request and will not object to
any such request if it concludes (in the exercise of its business judgement
based on such criteria as it considers appropriate) that any such remarketing
will not impair the ability of the Company to any High Yield Offering.  The
restrictions set forth in this section 24 shall not apply to any remarketing of
the Notes to any of your Affiliates.

          (b)  You shall provide the Company at least with 60 days prior written
notice (a "Remarketing Notice") if you wish the Company to assist in any
transfer or assignment of any amount of the Commitments or the Notes or if the
Five-Year No-Call (as defined below) will be

                                     -63-
<PAGE>

applicable to the Notes being so assigned (a "Remarketing Transfer"). Upon
receipt of a Remarketing Notice, the Company and its Subsidiaries shall
cooperate with you and your underwriters or agents in each remarketing effort
undertaken by you. Such cooperation shall include, if requested by you, (i) the
Company providing customary information in respect of the Company and its
Subsidiaries and making customary representations and warranties with respect to
such information in connection with any Offering and, if required by the
Securities Act, the Company acting as co-registrant, issuer or co-issuer of such
Offering, (ii) senior officers of the Company and its Subsidiaries participating
to a reasonable degree and upon reasonable prior notice, in the "road show" for
any Offering or in meetings with prospective transferees or assignees of the
Notes and, (iii) appropriate personnel from the Company and its Subsidiaries
assisting in the drafting of a registration statement or offering circular used
in marketing of any Offering; provided that the Company may elect to combine the
                              --------
registration of such Offering with the registration of any of the Company's
other High Yield Debt. The Company will promptly after delivery of a Remarketing
Notice, upon your request, direct its counsel (i) to prepare required
documentation for Refinancing Securities and/or any required amendments to this
Agreement to permit a Remarketing Transfer or (ii) to review any such
documentation prepared by your counsel, and the Company will work diligently
with you to finalize such documentation and issue such Refinancing Securities in
the manner you request.

          (c)  In connection with any Remarketing Transfer involving a sale of
Notes, the holders of the Notes or Refinancing Securities that are the subject
of such Remarketing Transfer shall, if you so request, be granted the right to
decline any optional or mandatory prepayments of such Notes or Refinancing
Securities (excluding regularly scheduled installments of principal) for a
period of up to five years from the date of consummation of such Remarketing
Transfer (the "Five-Year No-Call").

          (d)  If you have not completed a Remarketing Transfer for all the
Series A Notes and the Series B Notes then outstanding prior to January 1, 2003,
then the Company will pay you up to 3% of the then outstanding principal amount
of all Notes to defray any actual marketing distribution and other costs
incurred by you in connection with any such remarketing.

          (e)  At any time after the earlier to occur of (i) the disposition by
you of more than 50% of the aggregate principal amount of the Series A Notes or
Series B Notes then outstanding and (ii) January 1, 2001, you or the Required
Holders may request the issuance of Refinancing Securities in place of such
Series A Notes or Series B Notes, as applicable.

          25.  Adjustments. If any holder (a "Benefitted Holder") shall at any
               -----------
time receive any payment of all or part of its Notes, or interest thereon,
(whether voluntarily or involuntarily) in a greater proportion than any such
payment to any other holder, if any, in respect of such other holder's Notes, or
interest thereon, such Benefitted Holder shall purchase for cash from the other
holders a participating interest in such portion of each such other holder's

                                     -64-
<PAGE>

Notes, Notes as shall be necessary to cause such Benefitted Holder to share the
excess payment ratably with each of the other holders, provided, that if all or
                                                       --------
any portion of such excess payment is thereafter recovered from such Benefitted
Holder, such purchase shall be rescinded, and the purchase price returned, to
the extent of such recovery, but without interest.

          26.  Miscellaneous. This Agreement shall be binding upon and inure to
               -------------
the benefit of and be enforceable by the respective successors and assigns of
the parties hereto, whether so expressed or not, and, in particular, shall inure
to the benefit of and be enforceable by any holder or holders at the time of the
Notes or any part thereof. Except as stated in section 19, this Agreement
embodies the entire agreement and understanding between you and the Company and
supersedes all prior agreements and understandings relating to the subject
matter hereof. This Agreement and the Notes shall be construed and enforced in
accordance with and governed by the law of the State of New York. The headings
in this Agreement are for purposes of reference only and shall not limit or
otherwise affect the meaning hereof. This Agreement may be executed in any
number of counterparts, each of which shall be an original, but all of which
together shall constitute one instrument.

          27.  Submission To Jurisdiction; Waivers. The Company hereby
               -----------------------------------
irrevocably and unconditionally:

          (a)  submits for itself and its property in any legal action or
proceeding relating to this Agreement, and the Notes, or for recognition and
enforcement of any judgment in respect thereof, to the non-exclusive general
jurisdiction of the Courts of the State of New York, the courts of the United
States of America for the Southern District of New York, and appellate courts
from any thereof;

          (b)  consents that any such action or proceeding may be brought in
such courts and waives any objection that it may now or hereafter have to the
venue of any such action or proceeding in any such court or that such action or
proceeding was brought in an inconvenient court and agrees not to plead or claim
the same;

          (c)  agrees that service of process in any such action or proceeding
may be effected by mailing a copy thereof by registered or certified mail (or
any substantially similar form of mail), postage prepaid, to the Company at its
address set forth in section 18 or at such other address of which you shall have
been notified pursuant thereto;

          (d)  agrees that nothing contained herein shall affect the right to
effect service of process in any other manner permitted by law or shall limit
the right to sue in any other jurisdiction; and

                                     -65-
<PAGE>

          (e)  waives, to the maximum extent not prohibited by law, any right it
may have to claim or recover in any legal action or proceeding referred to in
this section any special, exemplary, punitive or consequential damages.

          28.  Expansion Notes. If the Company obtains the right to develop
               ---------------
or operate PCS networks serving BTAs or MTAs in addition to those contained in
the Designated Areas (such additional markets, the "Expansion Areas"), you agree
to provide financing related to such Expansion Areas through the purchase of
Notes having the same terms and conditions as the Series A Notes and Series B
Notes (such Notes, the "Expansion Notes") in an aggregate principal amount
representing 30% of the software, hardware and services to be provided by the
Vendor for such Expansion Area as set forth in a definitive business plan with
respect to such Expansion Area as approved by the board of directors of the
Company (the "Base Case"). Fifty percent of the Notes purchased by you shall
have the same terms as the Series A Notes and the remainder shall have the same
terms as the Series B Notes; provided that you shall not be obligated to
                             --------
purchase more than an aggregate principal amount of $80,000,000 of Expansion
Notes. The expiration date for the Expansion Notes issued to finance a
particular Expansion Area shall be the earlier to occur of (X) the date which is
six months after the scheduled maturity under the Company's initial Qualifying
High Yield Offering the proceeds of which are used to finance such Expansion
Area, and (Y) the fourteenth annual anniversary of the initial issuance of such
Expansion Notes. The Company acknowledges that your obligation to purchase
Expansion Notes is contingent on the Company irrevocably committing to purchase
one mobile switching center and fifty base stations for each Expansion Area from
the Vendor either pursuant to the Procurement Contract or under a new
procurement contract acceptable to the Company and the Vendor./1/ The Company
further acknowledges that the purchase of such Expansion Notes by you may be
conditioned on (a) the Company having entered into one or more agreements with
AT&T and AT&T PCS on terms substantially equivalent, in your determination, as
those entered into with AT&T, AT&T PCS and TWR with respect to the Designated
Areas which relate to the use of the AT&T brand name, trademarks and service
marks, roaming, access to the AT&T network with seamless integration for
customers and that none of AT&T PCS, TWR and the other parties to the
Stockholders' Agreement (in each case together with the Affiliated Successors
(as defined in the Stockholders' Agreement) will offer any Company
Communications Services (as defined in the Stockholders' Agreement) in such
Expansion Area (other than the right of AT&T PCS to offer resale services
similar to those set forth in Section 8.6 of the Stockholders' Agreement), (b)
the Company having received cash equity contributions per POP in such Expansion
Area in an amount of not less than $10, (c) the Company having Licenses covering
such Expansion Area that (i) are in full force and effect with no pending
appeal, and (ii) are not subject to any pending or, to the knowledge of the
Company, threatened revocation or termination proceeding or action (d) the
Company being in compliance with all Licenses covering Expansion Area in all
material

____________________

/1/  A reciprocal provision should be included in the Procurement Agreement.

                                     -66-
<PAGE>

respects, (e) entry into a new procurement contract or amendment of the
Procurement Contract, as described above, (f) modification of the threshold
amount of Net Debt Proceeds under section 10.5(b) and of the definition of Debt
Redemption Amount to an amount not to exceed the product of (i) the sum of (A)
the aggregate principal amount of loans outstanding and commitments available
under the Credit Agreement and (B) the aggregate principal amount of High Yield
Debt outstanding (including any High Yield Debt to be issued in connection with
such Expansion Area) multiplied by (ii) the lesser of (A) the High Yield
Percentage (after giving effect to any High Yield Debt to be issued in
connection with such Expansion Area) and (B) 40 %, (it being understood that if
the High Yield Percentage (after giving effect to any High Yield Debt to be
issued in connection with such Expansion Area) exceeds 40% and you and the
Company do not agree on the increase in such threshold amount, then the Company
shall not be obligated to issue and you shall not be obligated to purchase any
Expansion Notes with respect to such Expansion Area and the Company shall not be
required to commit to purchase software, hardware or services from the Vendor
for such Expansion Area), (g) modification of the threshold amount of Net
Securities Proceeds under section 10.4 to an amount not to exceed the product of
(i) $130,000,000 multiplied by (ii) a fraction the numerator of which is the sum
of (A) 11,100,000 plus (B) the number of POPs in Expansion Areas for which
Expansion Notes have been or concurrent therewith are being issued and the
denominator of which is 11,100,000 and (h) entry into an agreement and/or an
amendment to this Agreement related to the purchase of the Expansion Notes. The
Company's and your obligations under this section 28 shall expire June 30, 2001.

          29.  Waivers of Jury Trial. THE COMPANY AND YOU HEREBY IRREVOCABLY AND
               ---------------------
UNCONDITIONALLY WAIVE TRIAL BY JURY IN ANY LEGAL ACTION OR PROCEEDING RELATING
TO THIS AGREEMENT OR, THE NOTES AND FOR ANY COUNTERCLAIM THEREIN.

          30.  High Yield Offering. Upon the completion by the Company of its
               -------------------
initial Qualifying High Yield Offering, sections 8.1(e), 9.1, 9.2, 11.2, 11.6,
11.8, 11.10, 19 and 23.5 and the definition of "Change of Control" shall be
deleted and shall be replaced in their entirety by the comparable provisions
(including any defined terms contained therein), if any, contained in the
indenture or similar agreement with respect to such High Yield Offering.  Upon
the request of either the Company or you, the parties will prepare an amended
and restated version of this Agreement for the purpose of setting forth the
changes to such provisions.

                                     -67-
<PAGE>

          If you are in agreement with the foregoing, please sign the form of
agreement on the accompanying counterparts of this letter and return one of the
same to the Company, whereupon this letter shall become a binding agreement
between you and the Company.

                              Very truly yours,

                              TELECORP PCS, INC.



                              By: /s/ Thomas H. Sullivan
                                 -----------------------
                                 Title: Executive Vice President

The foregoing Agreement is
hereby agreed to as of the
date thereof.

LUCENT TECHNOLOGIES INC.


By: /s/ [SIGNATURE ILLEGIBLE]
   --------------------------------
Title:

                                     -68-
<PAGE>

                                                                    EXHIBIT 10.1
                                                                  (Attachment 5)

                                                                      Schedule A

                             PURCHASER INFORMATION

Lucent Technologies Inc.
600 Mountain Avenue
Murray Hill, New Jersey 07974
<PAGE>

                                                                     Schedule  B


          DISCLOSURE SCHEDULE TO THE NOTE PURCHASE AGREEMENT BY AND
          ---------------------------------------------------------
           BETWEEN TELECORP PCS, INC. AND LUCENT TECHNOLOGIES, INC.
           -------------------------------------------------------


Section 6.5  Changes, etc.
- -------------------------

The Company has certain obligations under the following contracts:

             1.  Securities Purchase Agreement by and among AT&T Wireless PCS
                 Inc., TWR Cellular, Inc., Cash Equity Investors, TeleCorp
                 Investors, Management Stockholders and the Company, dated as of
                 January 23, 1998, and all agreements related thereto;

             2.  General Agreement for the Purchase of PCS Systems and Services
                 by and between the Company and Lucent Technologies, Inc., dated
                 May 12, 1998; and

             3.  Contribution Agreement by and among the Company, AT&T Wireless
                 PCS Inc., TWR Cellular, Inc., Gerald T. Vento, Thomas H.
                 Sullivan, TeleCorp Holding Corp., Inc. and certain Cash Equity
                 Investors and TeleCorp Investors identified therein, dated May
                 15, 1998.



Section 6.8  Capital Stock and Related Matters.
- ----------------------------------------------

(a)   As of the date of the Note Purchase Agreement, the Company has 20,000
      shares of common stock, no par value, authorized of which 10 shares are
      issued and outstanding.

(b)   As of the date of the Note Purchase Agreement, TeleCorp PCS, LLC has the
      Company as its sole member.



Section 6.9  Debt.
- -----------------

The Company has certain obligations under the following contracts:

             1.  Securities Purchase Agreement by and among AT&T Wireless PCS
                 Inc., TWR Cellular, Inc., Cash Equity Investors, TeleCorp
                 Investors,
<PAGE>

                 Management Stockholders and the Company, dated as of
                 January 23, 1998, and all agreements related thereto;

             2.  General Agreement for the Purchase of PCS Systems and Services
                 by and between the Company and Lucent Technologies, Inc., dated
                 May 12, 1998; and

             3.  Contribution Agreement by and among the Company, AT&T Wireless
                 PCS Inc., TWR Cellular, Inc., Gerald T. Vento, Thomas H.
                 Sullivan, TeleCorp Holding Corp., Inc. and certain Cash Equity
                 Investors and TeleCorp Investors identified therein, dated May
                 15, 1998.



Section 6.11  Litigation.
- ------------------------

     Gerald T. Vento, in his capacity as Chief Executive Officer of TeleCorp
Holding Corp., Inc., received a letter from Mark A. Pelson, dated February 26,
1998, asserting an equity interest in TeleCorp Holding Corp., Inc. and its
affiliates.  TeleCorp Holding Corp., Inc. responded with a detailed letter sent
by its counsel, Steven W. Kasten at McDermott, Will & Emery, denying Mr.
Pelson's right to any equity interest in TeleCorp Holding Corp., Inc. or its
affiliates.  No further action has been taken by either party at this time.


Section 6.24  Security Agreement.
- --------------------------------

     As of the Closing Date, the Company and Lucent Technologies, Inc. have
agreed that financing statements will be filed for the following locations:

            1.  Little Rock, Arkansas
            2.  Memphis, Tennessee
            3.  Baton Rouge, Louisiana
            4.  New Orleans, Louisiana
            5.  Nashua, NH
            6.  Concord, NH
            7.  Manchester, NH
            8.  Worcester, MA
            9.  Barnstable County, MA
<PAGE>

                                                                    EXHIBIT 10.1
                                                                  (Attachment A)

                 INCREASING RATE SUBORDINATED NOTE (SERIES A)


$10,000,000                                                        June 16, 1998


          FOR VALUE RECEIVED, TeleCorp PCS, Inc., a Delaware corporation ( the
"Company"), promises to pay to the order of Lucent Technologies Inc.("Payee"),
on May 1, 2012 or such earlier date as may be provided pursuant to the Purchase
Agreement referred to below, the principal amount of Ten Million Dollars
($10,000,000).

          The Company also promises to pay interest on the unpaid principal
amount hereof from the date hereof until paid in full at a rate equal to 8.50%
per annum (the "Initial Rate"). If the Series A Notes (as defined in the
Purchase Agreement referred to below) are not redeemed in their entirety by
January 1, 2001, the Initial Rate will increase for the calendar year 2001,
commencing January 1, 2001, to a rate per annum which is the lower of 10.0% and
0.50% above the yield (coupon rate plus any yield attributable to equity
securities or warrants) of the High Yield Debt (as defined in the Purchase
Agreement referred to below) the Initial Rate will increase for the calendar
year 2002, commencing January 1, 2002, to a rate per annum which is the lower of
11.5% and 0.5% above the yield (coupon rate plus any yield attributable to
equity securities or warrants) of the High Yield Debt (as defined in the
purchase Agreement referred to below); and the Initial Rate will increase for
each calendar year thereafter, commencing January 1 of such calendar year, to a
rate per annum which is the lower of 12.5% and 0.50% above the yield (coupon
rate plus any yield attributable to equity securities or warrants) of the High
Yield Debt (as defined in the Purchase Agreement referred to below); provided,
                                                                     --------
however, if the Company has not issued High Yield Debt on or before January 1,
- -------
2001, the Initial Rate will increase to 12.5% commencing January 1, 2001 and for
all times thereafter. Interest shall be payable semiannually on June 16 and
December 16 of each year, commencing on December 16, 1998; provided that during
                                                           --------
the period from the date hereof to the sixth anniversary thereof, the Company
may pay the interest on any interest payment date during such period by issuing
to the Payee an additional Note, identical to this Note (other than the date
thereof, which shall be the date such interest payment is due)in the principal
amount of the interest payable on such payment date. After the date which is the
sixth anniversary of the date hereof, interest shall be payable in cash unless
there exists at the time such interest payment is due restrictions on such cash
interest payment in any document evidencing Senior Debt.
<PAGE>

          This Note is issued pursuant to and entitled to the benefits of the
Note Purchase Agreement dated as of May 11, 1998, as the same may at any time be
amended, modified or supplemented and in effect (the "Purchase Agreement")
between the Company and the Payee, to which reference is hereby made for a more
complete statement of the terms and conditions under which the Notes were
purchased and are to be repaid.  Capitalized terms used herein without
definition shall have the meanings set forth in the Purchase Agreement.

          All payments of principal and interest in respect of this Note shall
be made in lawful money of the United States of America in same day funds to
Payee at the office of Chase Manhattan Bank in the Borough of Manhattan, the
City and State of New York or at such other place as shall be designated in
writing for such purpose in accordance with the terms of the Purchase Agreement.
Each of Payee and any subsequent holder of this Note agrees, by its acceptance
hereof, that before disposing of this Note or any part hereof it will make a
notation hereon of all principal payments previously made hereunder and of the
date to which interest hereon has been paid; provided, however, that the failure
to make a notation of any payment made on this Note shall not limit or otherwise
affect the obligation of the Company hereunder with respect to payments of
principal or interest on this Note.

          Whenever any payment on this Note shall be stated to be due on a day
which is not a Business Day, such payment shall be made on the next succeeding
Business Day and such extension of time shall be included in the computation of
the payment of interest on this Note.

          This Note is subject to prepayment at the option of the Company as
provided in subsection 10.1 of the Purchase Agreement.  The Company is obligated
to prepay or make an offer to purchase all or part of this Note under the
circumstances described in subsections 10.2, 10.4 and 10.5 of the Purchase
Agreement.

          This Note is subordinated in right of payment to Senior Debt as and to
the extent provided in Section 14 of the Purchase Agreement.

          THIS NOTE SHALL BE GOVERNED BY, AND SHALL BE CONSTRUED AND ENFORCED IN
ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO THE
PRINCIPLES OF CONFLICTS OF LAWS.
<PAGE>

          Upon the occurrence of an Event of Default, the unpaid balance of the
principal amount of this Note, together with all accrued but unpaid interest
thereon, may become, or may be declared to be, due and payable in the manner,
upon the conditions and with the effect provided in the Purchase Agreement.

          The terms of this Note are subject to amendment only in the manner
provided in the Purchase Agreement.

          No reference herein to the Purchase Agreement and no provisions of
this Note or the Purchase Agreement shall alter or impair the obligation of the
Company, which is absolute and unconditional, to pay the principal of and
interest on this Note at the place, at the respective times, and in the currency
herein prescribed.

          The Company promises to pay all costs and expenses, including all
reasonable attorneys' fees, expenses and disbursements, incurred in the
collection and enforcement of this Note.  The Company and endorsers of this Note
hereby consent to renewals and extensions of time at or after the maturity
hereof, without notice, and hereby waive diligence, presentment, protest, demand
and notice of every kind and, to the full extent permitted by law, the right to
plead any statute of limitations as a defense to any demand hereunder.

          IN WITNESS WHEREOF, the Company has caused this Note to be executed
and delivered by its duly authorized officer, as of the day and year and at the
place first above written.

                                    TELECORP PCS, INC.


                                    BY:__________________________
                                       Title:

                                      -3-
<PAGE>

                                                                    EXHIBIT 10.1
                                                                     (Exhibit B)

                 INCREASING RATE SUBORDINATED NOTE (SERIES B)

$_______________                                           ______________, 1998

          FOR VALUE RECEIVED, Telecorp PCS, Inc., a Delaware corporation (the
"Company"), promises to pay to the order of Lucent Technologies Inc. ("Payee"),
on May 1, 2012 or such earlier date as may be provided pursuant to the Purchase
Agreement referred to below, the principal amount of __________ Dollars
($ _________).

          The Company also promises to pay interest on the unpaid principal
amount hereof from the date hereof until paid in full at a rate equal to 10%
per annum (the "Initial Rate"). If the Series A Notes (as defined in the
Purchase Agreement referred to below) are not redeemed in their entirety by
January 1, 2000, the Initial Rate will increase for the calendar year 2000,
commencing January 1, 2000, to a rate per annum which is the lower of 11.5% and
0.50% above the yield (coupon rate plus any yield attributable to equity
securities or warrants) of the High Yield Debt (as defined in the Purchase
Agreement referred to below); the Initial Rate will increase for each calendar
year thereafter commencing January 1 of such calendar year, to a rate per annum
which is the lower of 12.5% and 0.50% above the yield (coupon rate plus any
yield attributable to equity securities or warrants) of the high Yield debt (as
defined in the Purchase Agreement referred to below); provided, however, if the
                                                      --------  -------
Company has not issued High Yield Debt on or before January 1, 2000, the Initial
Rate will increase to 12.5% commencing January 1, 2000 and for all times
thereafter. Interest shall be payable semiannualy on ____________ and __________
of each year, commencing on _________; provided that during the period from the
                                       --------
date hereof to May 11, 2004, the Company may pay the interest on any interest
payment date during such period by issuing to the Payee an additional Note,
identical to this Note (other than the date thereof, which shall be the date
such interest payment is due) in the principal amount of the interest payable on
such payment date. After May 11, 2004, interest shall be payable in cash unless
there exists at the time such interest payment is due

<PAGE>

restrictions on such cash interest payment in any document evidencing Senior
Debt.

          This Note is issued pursuant to and entitled to the benefits of the
Note Purchase Agreement dated as of May 11, 1998 as the same may at any time be
amended, modified or supplemented and in effect (the "Purchase Agreement")
between the Company and the Payee, to which reference is hereby made for a more
complete statement of the terms and conditions under which the Notes were
purchased and are to be repaid. Capitalized terms used herein without definition
shall have the meanings set forth in the Purchase Agreement.

          All payments of principal and interest in respect of this Note shall
be made in lawful money of the United States of America in some day funds to
Payee at the office of Chase Manhattan Bank in the Borough of Manhattan, the
City and State of New York or at such other place as shall be designated in
writing for such purpose in accordance with the terms of the Purchase Agreement.
Each of payee and an subsequent holder of this Note agrees, by its acceptance
hereof, that before disposing of this Note or any part hereof it will make a
notation hereon of all principal payments previously made hereunder and of the
date to which interest hereon has been paid; provided, however, that the failure
to make a notation of any payment made on this Note shall not limit or otherwise
affect the obligation of the Company hereunder with respect to payment or
principal or interest on this Note.

          Whenever any payment on this Note shall be stated to be due on a day
which is not a Business Day, such payment shall be made on the next succeeding
Business Day and such extension of time shall be included in the computation of
the payment of interest on this Note.

          This Note is subject to prepayment at the option of the Company as
provided in subsection 10.1 of the Purchase Agreement. The Company is obligated
to prepay or make an offer to purchase all or part of this Note under the
circumstances described in subsection 10.2, 10.4 and 10.5 of the Purchase
Agreement.

          This Note is subordinated in right of payment to Senior Debt as and to
the extend provided in Section 14 of the Purchase Agreement.

<PAGE>

          THIS NOTE SHALL BE GOVERENED BY, AND SHALL BE CONSTRUED AND ENFORCED
IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO THE
PRINCIPLES OF CONFLICTS OF LAWS.

          Upon the occurrence of an Event of Default, the unpaid balance of the
principal amount of this Note, together with all accrued but unpaid interest
thereon, may become, or may be declared to be, due and payable in the manner,
upon the conditions and with the effect provided in the Purchase Agreement.

          The terms of this Note are subject to amendment only in the manner
provided in the Purchase Agreement.

          No reference herein to the Purchase Agreement and no provisions of
this Note or the Purchase Agreement shall alter or impair the obligation of the
Company, which is absolute and unconditional, to pay the principal of and
interest on this Note at the place, at the respective times, and in the currency
herein prescribed.

          The Company promises to pay all costs and expenses, including all
reasonable attorneys' fees, expenses and disbursements, incurred in the
collection and enforcement of this Note. The Company and endorsers of this Note
hereby consent to renewals and extension of time at or after the maturity
hereof, without notice, and hereby waive diligence, presentment, protest, demand
and notice of every kind and, to the full extent permitted by law, the right to
plead any statute of limitations as a defense to any demand hereunder.

          IN WITNESS WHEREOF, the Company has caused this Note to be executed
and delivered by its duly authorized officer, as of the day and year and at the
place first above written.

                                                 TELECORP PCS, INC

                                                 BY:____________________________
                                                    Title:

                                      -3-
<PAGE>

                                                                    EXHIBIT 10.1
                                                                  (Attachment 3)



                                                  May ___, 1998



Lucent Technologies Inc.
600 Mountain Avenue
Murray Hill, New Jersey  07974

                              TeleCorp PCS, Inc.
                              ------------------

Ladies and Gentlemen:

  We have acted as special New York counsel to TeleCorp PCS Inc., a Delaware
corporation (the "Company"), in connection with the Note Purchase Agreement,
                  -------
dated as of May 11, 1998 (the "Note Agreement"), between the Company and Lucent
                               --------------
Technologies Inc. ("Lucent", together with each holder of a Note, being
                    ------
individually a "Noteholder" and collectively the "Noteholders").  This opinion
                ----------                        -----------
is furnished to you pursuant to Section 5.1(e) of the Note Agreement.  Unless
otherwise defined herein (a) terms used herein have the meanings provided for in
the Note Agreement and (b) terms for which meanings are provided for in the New
York Uniform Commercial Code (the "UCC") are used herein as defined therein.
                                   ---

  In connection with this opinion we have examined (a) originals, or copies
identified to our satisfaction as being true copies, of such records, documents
and other instruments as we have deemed necessary for the purposes of this
opinion and (b) the form of execution copies of the Note Agreement, the Series A
Note and the Security Agreement (collectively, the "Subject Documents").  In
                                                    -----------------
addition, we have examined the (i) the certificate of incorporation and by-laws
of the Company and (ii) the good standing certificates of the Company attached
at Annex A hereto.
   -------

  With regard to factual matters, we have been furnished with, and with your
consent have relied (without independent verification) upon and assumed the
accuracy of, (a) certificates of the Company, (b) the representations of the
Company set forth in the Subject Documents and (c) certificates and assurances
from public officials as we have deemed necessary for purposes of expressing the
opinions expressed herein.

  Whenever our opinion with respect to the existence or absence of facts is
indicated to be based on our knowledge or awareness, we are referring solely to
the actual knowledge of the particular McDermott, Will & Emery attorneys who
have represented the Company in connection with the Subject Documents.  Except
as expressly set forth herein, we have not undertaken any independent
investigation (including, without limitation, conducting any
<PAGE>

review, search or investigation of any public files, records or documents) to
determine the existence or absence of such facts and no inference as to our
knowledge concerning such facts should be drawn from the fact that we have
relied upon such representations and warranties in connection with the
preparation and delivery of this opinion.

  In our examination, and for all purposes of the opinions expressed herein, we
have assumed, with your permission, and without independent investigation, that:

     (a)  the signatures of individuals (other than individuals signing on
  behalf of the Company) signing the Subject Documents are genuine and
  authorized;

     (b)  all documents submitted to us as copies conform to authentic original
  documents;

     (c)  all parties (other than the Company) to the Subject Documents (i) have
  full power and authority to execute, deliver and perform thereunder and under
  the documents required or permitted to be delivered and performed thereunder
  and (ii) all such documents (A) have been duly authorized by all necessary
  corporate or other actions on the part of such parties, (B) have been duly
  executed by such parties, (C) have been duly delivered by such parties and (D)
  are legal, valid and binding obligations enforceable against such parties; and

     (d)  the representations and warranties in the Subject Documents as to
  factual matters are accurate and complete in all respects.

  Based on the foregoing, and subject to the limitations, qualifications and
exceptions set forth in lettered paragraphs (A) through (G) below, we are of the
                                 --------------         ---
opinion that:

  1.  Corporate Status.  The Company is a corporation validly existing under the
      ----------------
laws of the State of Delaware and has the corporate power and authority to own
its property and assets and to transact the business in which it is currently
engaged as described in the Note Agreement.  Based solely upon our review of the
certificates of good standing attached at Annex A hereto, the Company is a
                                          -------
corporation in good standing under the laws of its jurisdiction of incorporation
and is authorized to do business and is in good standing in each jurisdiction
listed on Annex B attached hereto.
          -------

  2.  Corporate Power and Authority.  The Company has the corporate power and
      -----------------------------
authority to execute, deliver and perform the terms and provisions of each
Subject Document to which it is party and has taken all necessary corporate
action to authorize the execution, delivery and performance by it of each such
Subject Document.

  3.  Due Execution, Validity and Enforceability.  The Company has duly executed
      ------------------------------------------
and delivered each Subject Document to which it is party, and each such Subject
Document constitutes the legal, valid, binding and enforceable obligations of
the Company.

                                      -2-
<PAGE>

  4.  No Violation.   Neither the execution, delivery nor performance by the
      ------------
Company of any Subject Document, nor compliance by the Company with the terms
and provisions thereof,

     (a)  violate, based on our review of those laws, rules and regulations
  which, in our experience, are normally applicable to transactions of the
  contemplated by the Subject Documents, any present law, statute or regulation
  of the State of New York, the General Corporation Law of the State of Delaware
  or the United States; or

     (b)  violate any provision of the certificate of incorporation or by-laws
  of the Company; or

     (c)  result in any breach of any of the terms of, or constitute a default
  under, or with respect to any of the Article Nine Collateral (as defined in
  opinion paragraph 6 below) result in the creation or imposition of any Lien
          -----------
  (except as contemplated by the Subject Documents) upon any of such Article
  Nine Collateral, in each case pursuant to the terms of any written
  agreement of the Company set forth on Annex C attached hereto.
                                        -------

  5.  Governmental Approvals.  Based on our review of those laws, rules and
      ----------------------
regulations which, in our experience, are normally applicable to transactions of
the type contemplated by the Subject Documents, no consent, approval or
authorization of, or filing with, any governmental authority of the United
States, the State of New York or pursuant to the Delaware General Corporation
Law, is required for (a) the due execution, delivery and performance by the
Company of any Subject Document or (b) the legality, validity, binding effect or
enforceability of any Subject Document, except (i) for filings, recordings and
other actions which have previously been made or obtained, (ii) consents,
approvals, authorizations and filings as may be required to be obtained or made
by each Noteholder as a result of its involvement in the transaction
contemplated by the Subject Documents, (iii) routine filings to be made after
the date hereof in the ordinary course of business of the Company and (iv)
filings which are necessary to perfect the security interest granted under the
Security Agreement.

  6.  Security Interests.  After giving effect to the issuance and payment of
      ------------------
the Series A Note on the date hereof, the Security Agreement creates a valid
security interest in favor of Lucent to secure the Obligations (as defined in
each Security Agreement) in all right, title and interest of the Company in and
to all personal property included within the definition of the term Collateral
(as defined in the Security Agreement) in which a security interest can be
granted under Article 9 of the UCC (collectively, the "Article Nine
                                                       ------------
Collateral").
- ----------
  7.  Judgments, Actions and Proceedings.  To the best of our knowledge, there
      ----------------------------------
are no outstanding judgments, actions, suits or proceedings pending against the
Company before any court or governmental authority which purports to affect the
legality, validity, binding effect or enforceability of any of the Subject
Documents.

  The opinions set forth above are subject to the following qualifications:

                                      -3-
<PAGE>

     (A)  Our opinions expressed herein are limited to the laws of the State of
  New York, the Federal law of the United States and the Delaware General
  Corporation Law, and we do not express any opinion concerning any other law.

     (B)  Our opinions expressed herein are subject to the effect of any
  applicable bankruptcy, insolvency, reorganization, moratorium or similar laws
  affecting creditors' rights generally.

     (C)  Our opinions expressed herein are subject to the effect of general
  principles of equity, including, without limitation, concepts of materiality,
  reasonableness, good faith and fair dealing (regardless of whether considered
  in a proceeding in equity or at law). In applying such principles a court,
  among other things, might limit the availability of specific equitable
  remedies (such as injunctive relief and the remedy of specific performance),
  might not allow a creditor to accelerate maturity of debt or any portion
  thereof upon the occurrence of a default deemed immaterial or for non-credit
  reasons or might decline to order a debtor to perform covenants in a Subject
  Document. In addition, a court may refuse to enforce a covenant if and to the
  extent that it deems such covenant to be violative of applicable public
  policy, including, for example, provisions indemnifying a party against
  liability for its own wrongful or negligent acts.

     (D)  We call your attention to the following matters (as well as those
  matters set out in paragraph (G) below) as to which we express no opinion:
                     -------------

          (1)  the agreement of the Company in the Subject Documents relating to
               indemnification, contribution or exculpation of costs, expenses
               or other liabilities incurred by the Noteholders that arise out
               of or in connection with the transactions contemplated by the
               Subject Documents;

          (2)  fraudulent transfer laws and principles of equitable
               subordination;

          (3)  the agreement of the Company in the Subject Documents to submit
               to the jurisdiction of courts of the State of New York, or to
               waive the right to jury trial or to establish evidentiary
               standards;

          (4)  the creation of any trust relationship by the Company on
               behalf of any Noteholder;

          (5)  the ordinances and statutes, the administrative decisions and
               orders and the rules and regulations of any municipality, county,
               special district or other political subdivision of the State of
               New York;

                                      -4-
<PAGE>

          (6)  any waiver or remedy contained in the Loan Documents, whether or
               not any Loan Document deems any such waiver or remedy
               commercially reasonable, if such waiver or remedy is determined
               (a) not to be commercially reasonable, (b) to conflict with
               mandatory provisions under the UCC or any other applicable law or
               (c) to be taken in a manner determined to be unreasonable; and

          (7)  certain of the provisions contained in the Subject Documents may
               be unenforceable or ineffective in whole or in part, but the
               inclusion of such provisions does not render any of Subject
               Documents invalid as a whole and each of the Subject Documents
               contains, in our opinion, adequate remedial provisions for the
               practical realization of the principal rights and benefits
               purported to be afforded by the Subject Documents, subject to the
               other qualifications contained in this opinion. We note, however,
               that the unenforceability of such provisions may result in delays
               in enforcement of the rights and remedies of the Noteholders
               under the Subject Documents (and we express no opinion as to the
               economic consequences, if any, of such delays).

     (E)  With respect to our opinions in paragraph 4 we express no opinion as
                                          -----------
     to any violation not readily ascertainable from the face of the agreement
     referred to therein or arising from any cross-default provision insofar as
     it relates to a default under an agreement not referred to therein or
     arising under a covenant of a financial or numerical nature or requiring
     computation.

     (F)  Our opinions in paragraph 6 above are subject to the following:
                          -----------

          (1)  the continuation of Lucent's security interest in the proceeds of
     the Collateral is limited to the extent set forth in Section 9-306 of the
     UCC;

          (2)  in the case of property which becomes part of the Collateral
     after the date hereof, Section 552 of the Federal Bankruptcy Code limits
     the extent to which property acquired by a debtor after the commencement of
     a case under the Federal Bankruptcy Code may be subject to a security
     interest arising from a security agreement entered into by the debtor
     before the commencement of such case;

          (3)  in the case of property which becomes part of the Collateral
     after the date hereof, Section 547 of the Bankruptcy Code provides that a
     transfer is not made until the debtor has rights in the property
     transferred, so a security interest in after-acquired property which is
     security for other than a contemporaneous advance may be treated as a
     voidable preference under the

                                      -5-
<PAGE>

     conditions (and subject to the exceptions) provided by Section 547 of the
     Bankruptcy Code;

          (4)  Section 364 of the Bankruptcy Code provides that the extension of
     secured credit after the commencement of a case under the Bankruptcy Code
     requires court approval;

          (5)  the rights of Lucent with respect to the Collateral consisting of
     accounts, instruments, licenses, leases, contracts or other agreements will
     be subject to the claims, rights and defenses of the other parties thereto
     against the Company; and

          (6)  in the case of any Collateral consisting of licenses or permits
     issued by governmental authorities, the Company may not have sufficient
     rights therein for the security interest of Lucent to attach and, even if
     the Company has sufficient rights for the security interest of Lucent to
     attach, the exercise of remedies may be limited by the terms of the license
     or permit or require the consent of the governmental authority issuing such
     license or permit.

     (G)  With respect to our opinions in paragraph 6 above, we express no
                                          -----------
  opinion as to:

          (1)  the Company's ownership rights in or title to, or perfection of
     any Lien on or with respect to, any property or assets forming any part of
     the Collateral; and

          (2)  the creation, validity, perfection, priority or enforceability of
     any security interest purported to be granted in or in respect of (a) any
     real property, fixtures, equipment used in farming operations, farm
     products, crops, timber or minerals and the like (including oil and gas) or
     accounts resulting from the sale of any of the foregoing; (b) patents,
     trademarks, copyrights, trade names, service marks and other intellectual
     property; (c) policies or insurance, deposit accounts, receivables due from
     any government or agency thereof, inventory which is subject to any
     negotiable documents of title (such as negotiable bills of lading or
     warehouse receipts), consumer goods, beneficial interests in a trust,
     letters of credit or accounts resulting from the sale of any of the
     foregoing; or (d) any other property or assets the creation, perfection or
     priority of a security interest in which is excluded from the coverage of
     Article 9 of the UCC, including such property or assets the creation,
     perfection or priority of a security in which are subject to (i) a statute
     or treaty of the United States which provides for a national or
     international registration or a national or international certificate of
     title for the perfection or recordation of a security interest therein or
     which specifies a place of filing different from that specified in the UCC
     for filing to perfect or record such security interest or (ii) a
     certificate of title statute.

                                      -6-
<PAGE>

  The opinions set forth herein are made as of the date hereof and we assume no
obligation to supplement this opinion if any applicable laws change after the
date hereof or if we become aware after the date hereof of any facts that might
change the opinions expressed herein.  The foregoing opinions are being
furnished to Lucent for the purpose referred to in the first two sentences of
this opinion, and this opinion is not to be used, furnished to any Person (other
than Persons who have purchased participations from Lucent in accordance with
the terms of Section 23.2 of the Purchase Agreement) or relied upon for any
other purpose without our prior written consent, except that other Persons who,
in the future, become an assignee in accordance with the terms of Section 23.3
of the Note Agreement may be furnished with, and rely upon, this opinion.

                                                  Very truly yours,

                                      -7-
<PAGE>

Attachments


Annex A  -  Good Standing Certificates
Annex B  -  Jurisdictions Qualified in Good Standing
Annex C  -  No Conflict Agreements
<PAGE>

                                                                         Annex A
                                                                         -------



                          Good Standing Certificates
                          --------------------------
<PAGE>

                                                                         Annex B
                                                                         -------

                   Jurisdictions Qualified in Good Standing
                   ----------------------------------------

                          ==========================
                           Arkansas
                          ==========================
                           Delaware
                          ==========================
                           District of Columbia
                          ==========================
                           Louisiana
                          ==========================
                           Massachusetts
                          ==========================
                           Mississippi
                          ==========================
                           Missouri
                          ==========================
                           New Hampshire
                          ==========================
                           Tennessee
                          ==========================
                           Texas
                          ==========================
                           Virginia
                          ==========================

                          ==========================
<PAGE>

                                                                         Annex C
                                                                         -------



                            No Conflict Agreements
                            ----------------------


1.   General Agreement for Purchase of Personal Communications Systems and
     Services between Lucent and the Company.

2.   Securities Purchase Agreement, dated as of January 23, 1998, among AT&T
     Corp., TWR Cellular, Inc., the Company and the investors referred to on the
     schedules thereto.

3.   License Purchase Agreement, dated January 23, 1998, between AT&T Corp. and
     the Company.

4.   Management Agreement between the Company and TeleCorp Management Corp. I,
     L.L.C.

5.   Network Membership License Agreement between AT&T Corp. and the Company.

6.   Resale Agreement between AT&T Corp. and the Company.

7.   Intercarrier Roamer Services Agreement between AT&T Corp. and the Company.
<PAGE>

                                                                    EXHIBIT 10.1
                                                                  (Attachment 4)

                          FORM OF SECURITY AGREEMENT


          SECURITY AGREEMENT, dated as of May __, 1998, made by TeleCorp PCS,
Inc. a Delaware corporation (the "Grantor"), in favor of Lucent Technologies
                                  -------
Inc., a Delaware corporation (the "Grantee").
                                   -------

                             W I T N E S S E T H :
                             -------------------


          WHEREAS, pursuant to the Note Purchase Agreement dated as of May __,
1998 between the Grantor and Grantee (as amended, supplemented or otherwise
modified from time to time, the "Note Purchase Agreement"), the Grantee has
agreed to purchase certain Increasing Rate Subordinated Notes Series A Due 2012
(the "Series A Notes") from the Grantor upon the terms and subject to the
conditions set forth therein; and

          WHEREAS, it is a condition precedent to the obligation of the Grantee
to purchase and pay for the Series Notes under the Note Purchase Agreement that
the Grantor shall have executed and delivered this Security Agreement to the
Grantee;

          NOW, THEREFORE, in consideration of the premises and to induce the
Grantee to enter into the Note Purchase Agreement and to purchase and pay for
the Series Notes  issued therewith, the Grantor hereby agrees with the Grantee,
as follows:

1.  Defined Terms.  Unless otherwise defined herein, terms defined in the Note
    -------------
Purchase Agreement and used herein are used herein as defined therein.  The
following terms which are defined in the Uniform Commercial Code in effect in
the State of New York on the date hereof are used herein as defined therein:
Instruments, Chattel Paper, Farm Products, Documents and Proceeds.  The
following terms shall have the following meanings:

          "Code" shall mean the Uniform Commercial Code as from time to time in
           ----
     effect in the State of New York.

          "Equipment" shall mean all equipment sold to and acquired by the
           ---------
Grantor from the Vendor under the Procurement Contract (as defined below),
including any and all equipment sold to and acquired by the Grantor from the
Vendor after the Initial Series A Closing under the Procurement Contract.
<PAGE>

          "Obligations" shall mean the unpaid principal of and interest on
           -----------
     (including, without limitation, interest accruing after the maturity any of
     the Notes and interest accruing after the filing of any petition in
     bankruptcy, or the commencement of any insolvency, reorganization or like
     proceeding, relating to the Grantor, whether or not a claim for post-filing
     or post-petition interest is allowed in such proceeding) the Notes and all
     other obligations and liabilities of the Grantor to any holder, whether
     direct or indirect, absolute or contingent, due or to become due, now
     existing or hereafter incurred, which may arise under, out of, or in
     connection with, the Note Purchase Agreement, this Security Agreement or
     the Notes or any other document made, delivered or given in connection
     therewith or herewith, whether on account of principal, interest, fees,
     indemnities, costs, expenses (including, without limitation, all fees and
     disbursements of counsel to the holders) that are required to be paid by
     the Grantor pursuant to the terms of the Note Purchase Agreement, or
     otherwise.

          "Procurement Contract" shall mean the Vendor Procurement Contract
           --------------------
     dated as of May 11, 1998 between the Grantor and the Grantee, as Vendor,
     including (i) all rights of the Grantor to receive equipment (and the
     proceeds therefrom) thereunder or in connection therewith, (ii) all rights
     of the Grantor to damages arising out of, or for, breach or default in
     respect thereof and (iii) all rights of the Grantor to perform and to
     exercise all remedies thereunder.

          "Security Agreement" means this Security Agreement, as amended,
           ------------------
supplemented   or otherwise modified from time to time.

          2.  Grant of Security Interest.  As collateral security for the prompt
              --------------------------
and complete payment and performance when due (whether at the stated maturity,
by acceleration or otherwise) of the Obligations, the Grantor hereby grants to
the Grantee a security interest in all the following property now owned or at
any time hereafter acquired by the Grantor or in which the Grantor now has or at
any time in the future may acquire any right, title or interest in
(collectively, the "Collateral"):
                    ----------

               (i)  all Equipment; and

               (ii) to the extent not otherwise included, all Proceeds and
                    products of any and all of the foregoing.

          3.  Rights of Grantee; Limitations on Grantee's Obligations.
              -------------------------------------------------------

              Grantor Remains Liable under the Procurement Contract.  Anything
              -----------------------------------------------------
herein to the contrary notwithstanding, the Grantor shall remain liable under
the Procurement Contract to observe and perform all the conditions and
obligations to be observed and performed by it thereunder, all in accordance
with the terms of any agreement giving rise to the Procurement

                                      -2-
<PAGE>

Contract and in accordance with and pursuant to the terms and provisions of the
Procurement Contract.


          4.  Representations and Warranties.  The Grantor hereby represents and
              ------------------------------
warrants that:

          (a) Title; No Other Liens.  The Grantor owns each item of the
              ---------------------
     Collateral free and clear of any and all Liens (other than Liens imposed by
     statute (other than ERISA or any environmental laws) arising in the
     ordinary course of business for amounts (i) not yet due or (ii) which are
     being contested in good faith by appropriate proceedings and as to which
     adequate reserves or other provisions are being maintained in accordance
     with GAAP).  No security agreement, financing statement or other public
     notice with respect to all or any part of the Collateral is on file or of
     record in any public office, except such as may have been filed in favor of
     the Grantee pursuant to this Security Agreement or under the Procurement
     Contract.

          (b) Perfected First Priority Liens.  The Liens granted pursuant to
              ------------------------------
     this Security Agreement will, upon the filing of appropriate financing
     statements, constitute perfected Liens on the Collateral in favor of the
     Grantee, which are prior to all other Liens on the Collateral created by
     the Grantor and in existence on the date hereof and which are enforceable
     as such against all creditors of and purchasers from the Grantor and
     against any owner or purchaser of the real property where any of the
     Equipment is located and any present or future creditor obtaining a Lien on
     such real property, except as enforceability may be limited by bankruptcy,
     insolvency, reorganization, moratorium or similar laws affecting the
     enforcement of creditor's rights generally and by general equitable
     principles (whether enforcement is sought by proceedings in equity or at
     law).

          (c) Books and Records.  The place where the Grantor keeps its books
              -----------------
     and records relating in any manner to the Collateral is 1101 17th Street
     NW, 9th Floor, Washington D.C., 20036.

          (d) Equipment.  The Equipment is kept at the locations listed on
              ---------
     Schedule I hereto.

          (e) Chief Executive Office.  The Grantor's chief executive office and
              ----------------------
     chief place of business is located at 1101 17th Street NW, 9th Floor,
     Washington D.C., 20036.

          5.  Covenants.  The Grantor covenants and agrees with the Grantee
              ---------
that, from and after the date of this Security Agreement until the earlier of
(a) the repayment in full of the Obligations, and (b) the Liens granted
hereunder are terminated pursuant to Section 21.

                                      -3-
<PAGE>

          (a) Further Documentation; Pledge of Instruments and Chattel Paper.
              --------------------------------------------------------------
     At any time and from time to time, upon the written request of the Grantee,
     and at the sole expense of the Grantor, the Grantor will promptly and duly
     execute and deliver such further instruments and documents and take such
     further action as the Grantee may reasonably request for the purpose of
     obtaining or preserving the full benefits of this Security Agreement and of
     the rights and powers herein granted, including, without limitation, the
     filing of any financing or continuation statements under the Uniform
     Commercial Code in effect in any jurisdiction with respect to the Liens
     created hereby.  The Grantor also hereby authorizes the Grantee to file any
     such financing or continuation statement without the signature of the
     Grantor to the extent permitted by applicable law.  A carbon, photographic
     or other reproduction of this Security Agreement shall be sufficient as a
     financing statement for filing in any jurisdiction.

          (b) Indemnification.  The Grantor agrees to pay, and to save the
              ---------------
     Grantee harmless from, any and all liabilities, costs and expenses
     (including, without limitation, legal fees and expenses) (i) with respect
     to, or resulting from, any delay in paying any and all excise, sales or
     other taxes which may be payable or determined to be payable with respect
     to any of the Collateral, (ii) with respect to, or resulting from, any
     delay in complying with any Requirement of Law applicable to any of the
     Collateral or (iii) in connection with any of the transactions contemplated
     by this Security Agreement, except resulting from the Grantee's gross
     negligence or willful misconduct.

          (c) Maintenance of Records.  The Grantor will keep and maintain at its
              ----------------------
     own cost and expense satisfactory and complete records of the Collateral.
     The Grantor will mark its books and records pertaining to the Collateral to
     evidence this Security Agreement and the security interests granted hereby
     in such manner as the Grantee may reasonably request.  For the Grantee's
     further security, the Grantee shall have a security interest in all the
     Grantor's books and records pertaining to the Collateral, and the Grantor
     shall, during the continuance of a Default, turn over copies of such books
     and records and during the continuation of an Event of Default turn over
     any such books and records, in each case, to the Grantee or to its
     representatives during normal business hours at the request of the Grantee.

          (d) Right of Inspection.  The Grantee and its representatives shall at
              -------------------
     all reasonable times also have the right to enter into and upon any
     premises where any of the Equipment or any records with respect to the
     Equipment is located for the purpose of inspecting the same, observing its
     use or otherwise protecting its interests therein.

          (e) Compliance with Laws.  The Grantor will comply in all material
              --------------------
     respects with all Requirements of Law applicable to the Collateral or any
     part thereof or to the operation of the Grantor's business; provided that
                                                                 --------
     the Grantor may contest any

                                      -4-
<PAGE>

     Requirement of Law in any reasonable manner which shall not, in the sole
     opinion of the Grantee, adversely affect the Grantee's rights or the
     priority of its Liens on the Collateral.

          (f) Limitation on Liens on Collateral.  The Grantor will not create,
              ---------------------------------
     incur or permit to exist, will defend the Collateral against, and will take
     such other action as is necessary to remove, any Lien or claim on or to the
     Collateral, other than the Liens created hereby and will defend the right,
     title and interest of the Grantee in and to any of the Collateral against
     the claims and demands of all Persons whomsoever.

          (g) Limitations on Dispositions of Collateral.  The Grantor will not
              -----------------------------------------
     sell, transfer, lease or otherwise dispose of any of the Collateral, or
     attempt, offer or contract to do so.

          (h) Maintenance of Equipment.  The Grantor will maintain each item
              ------------------------
     of Equipment in good operating condition, ordinary wear and tear and
     immaterial impairments of value and damage by the elements excepted, and
     will provide all maintenance, service and repairs necessary for such
     purpose.

          (i) Maintenance of Insurance.  The Grantor will maintain, with
              ------------------------
     financially sound and reputable companies, insurance policies on the
     Equipment in at least such amounts and against at least such risks (but
     including in any event public liability, business interruption and storm
     damage) as are usually insured against in the same general area by
     companies engaged in the same or a similar business.  All such policies
     shall (i) contain a breach of warranty clause in favor of the Grantee, (ii)
     provide that no cancellation, material reduction in amount or material
     change in coverage thereof shall be effective until at least 30 days after
     receipt by the Grantee of written notice thereof, (iii) name the Grantee as
     loss payee of each such policy and (iv) name the Grantee as insured to the
     extent of its interests under each such policy.  The Grantor shall deliver
     to the Grantee any other information as to the insurance carried with
     respect to the Equipment as the Grantee may reasonably request.

          (j) Further Identification of Collateral.  The Grantor will furnish to
              ------------------------------------
     the Grantee from time to time statements and schedules further identifying
     and describing the Collateral and such other reports in connection with the
     Collateral as the Grantee may request, all in reasonable detail.

          (k) Notices.  The Grantor will advise the Grantee promptly, in
              -------
     reasonable detail, at its address set forth in the Note Purchase Agreement,
     (i) of any Lien (other than Liens created hereby or permitted under the
     Note Purchase Agreement) on, or claim asserted against, any of the
     Collateral and (ii) of the occurrence of any other event which could
     reasonably be expected to have a material adverse effect on the aggregate
     value of the Collateral or on the Liens created hereunder.

                                      -5-
<PAGE>

          (l) Changes in Locations, Name, etc.  Unless the Grantor takes such
              -------------------------------
     action as the Grantee may request to preserve at all times the Liens
     hereunder, the Grantor will not (i) change the location of its chief
     executive office/chief place of business from that specified in Section
                                                                     -------
     4(d) or remove its books and records from the location specified in Section
     ----                                                                -------
     4(e), (ii) permit any of the Equipment to be kept at a location other than
     ----
     those listed on Schedule I hereto or (iii) change its name, identity or
     corporate structure to such an extent that any financing statement filed by
     the Grantee in connection with this Security Agreement would become
     seriously misleading.

          6.  Grantee's Appointment as Attorney-in-Fact.
              -----------------------------------------

          (a) Powers.  The Grantor hereby irrevocably constitutes and appoints
              ------
the Grantee and any officer or agent thereof, with full power of substitution,
as its true and lawful attorney-in-fact with full irrevocable power and
authority in the place and stead of the Grantor and in the name of the Grantor
or in its own name, from time to time in the Grantee's discretion, upon the
occurrence and during the continuance of any Event of Default, for the purpose
of carrying out the terms of this Security Agreement, to take any and all
appropriate action and to execute any and all documents and instruments which
may be necessary or desirable to accomplish the purposes of this Security
Agreement, and, without limiting the generality of the foregoing, the Grantor
hereby gives the Grantee the power and right, on behalf of the Grantor, without
notice to or assent by the Grantor, to do the following:

          (i) to pay or discharge taxes and Liens levied or placed on or
     threatened against the Collateral, to effect any repairs or any insurance
     called for by the terms of this Security Agreement and to pay all or any
     part of the premiums therefor and the costs thereof; and

          (ii) (A) to direct any party liable for any payment under any of the
     Collateral to make payment of any and all moneys due or to become due
     thereunder directly to the Grantee or as the Grantee shall direct; (B) to
     ask or demand for, collect, receive payment of and receipt for, any and all
     moneys, claims and other amounts due or to become due at any time in
     respect of or arising out of any Collateral; (C) to sign and endorse any
     invoices, freight or express bills, bills of lading, storage or warehouse
     receipts, drafts against debtors, assignments, verifications, notices and
     other documents in connection with any of the Collateral; (D) to commence
     and prosecute any suits, actions or proceedings at law or in equity in any
     court of competent jurisdiction to collect the Collateral or any thereof
     and to enforce any other right in respect of any Collateral; (E) to defend
     any suit, action or proceeding brought against the Grantor with respect to
     any Collateral; (F) to settle, compromise or adjust any suit, action or
     proceeding described in clause (E) above and, in connection therewith, to
     give such discharges or releases as the Grantee may deem appropriate; and
     (G) generally, to sell, transfer, pledge and make any

                                      -6-
<PAGE>

     agreement with respect to or otherwise deal with any of the Collateral as
     fully and completely as though the Grantee were the absolute owner thereof
     for all purposes, and to do, at the Grantee's option and the Grantor's
     expense, at any time, or from time to time, all acts and things which the
     Grantee deems necessary to protect, preserve or realize upon the Collateral
     and the Grantee's thereon and to effect the intent of this Security
     Agreement, all as fully and effectively as the Grantor might do.

The Grantor hereby ratifies all that said attorneys shall lawfully do or cause
to be done by virtue hereof.  This power of attorney is a power coupled with an
interest and shall be irrevocable.

          (b) Other Powers.  The Grantor also authorizes the Grantee, at any
              ------------
time and from time to time, to execute, in connection with the sale provided for
in this Section 6 or in Section 9 hereof, any endorsements, assignments or other
        ---------       ---------
instruments of conveyance or transfer with respect to the Collateral.

          (c) No Duty on Grantee's Part.  The powers conferred on the Grantee
              -------------------------
hereunder are solely to protect the Grantee's interests in the Collateral and
shall not impose any duty upon the Grantee to exercise any such powers.  The
Grantee shall be accountable only for amounts that it actually receives as a
result of the exercise of such powers, and neither it nor any of its officers,
directors, employees or agents shall be responsible to the Grantor for any act
or failure to act hereunder, except for its own gross negligence or willful
misconduct.

          7.  Proceeds.  It is agreed that if an Event of Default shall occur
              --------
and be continuing (a) upon written notice by the Grantee to the Grantor, all
Proceeds (relating to the Collateral) received by the Grantor consisting of
cash, checks and other near-cash items shall be held by the Grantor in trust for
the Grantee, segregated from other funds of the Grantor, and, forthwith upon
receipt by the Grantor, shall be turned over to the Grantee in the exact form
received by the Grantor (duly endorsed by the Grantor to the Grantee, if
required), and (b) any and all such Proceeds received by the Grantee (whether
from the Grantor or otherwise) may, in the sole discretion of the Grantee, be
held by the Grantee as collateral security for, and/or then or at any time
thereafter may be applied by the Grantee against, the Obligations (whether
matured or unmatured), such application to be in such order as the Grantee shall
elect.  Any balance of such Proceeds remaining after the Obligations shall have
been paid in full and the Commitments shall have been terminated shall be paid
over to the Grantor or to whomsoever may be lawfully entitled to receive the
same.

          8.  Remedies.  If an Event of Default shall occur and be continuing,
              --------
the Grantee may exercise, in addition to all other rights and remedies granted
to it in this Security Agreement and in any other instrument or agreement
securing, evidencing or relating to the Obligations, all rights and remedies of
a secured party under the Code.  Without limiting the generality of the
foregoing, the Grantee, without demand of performance or other demand,
presentment, protest, advertisement or notice of any kind (except any notice
required by law

                                      -7-
<PAGE>

referred to below) to or upon the Grantor, any guarantor, or any other Person
(all and each of which demands, defenses, advertisements and notices being
hereby waived), may in such circumstances forthwith collect, receive,
appropriate and realize upon the Collateral, or any part thereof, and/or may
forthwith sell, lease, assign, give option or options to purchase, or otherwise
dispose of and deliver the Collateral or any part thereof (or contract to do any
of the foregoing), in one or more parcels at public or private sale or sales, at
any office of the Grantee or elsewhere upon such terms and conditions as it may
deem advisable and at such prices as it may deem best, for cash or on credit or
for future delivery without assumption of any credit risk. The Grantee shall
have the right upon any such public sale or sales, and, to the extent permitted
by law, upon any such private sale or sales, to purchase the whole or any part
of the Collateral so sold, free of any right or equity of redemption in the
Grantor, which right or equity is hereby waived or released. The Grantor further
agrees, at the Grantee's request, to assemble the Collateral and make it
available to the Grantee at such places as the Grantee shall reasonably select,
whether at the Grantor's premises or elsewhere. The Grantee shall apply the net
proceeds of any such collection, recovery, receipt, appropriation, realization
or sale, after deducting all reasonable costs and expenses of every kind
incurred therein or incidental to the care or safekeeping of any of the
Collateral or in any way relating to the Collateral or the rights of the Grantee
and the Lenders hereunder, including, without limitation, reasonable attorneys'
fees and disbursements, to the payment in whole or in part of the Obligations,
in such order as the Grantee may elect, and only after such application and
after the payment by the Grantee of any other amount required by any provision
of law, including, without limitation, Section 9-504(i)(c) of the Code, need the
Grantee account for the surplus, if any, to the Grantor. To the extent permitted
by applicable law, the Grantor waives all claims, damages and demands it may
acquire against the Grantee arising out of the exercise by it of any rights
hereunder. If any notice of a proposed sale or other disposition of Collateral
shall be required by law, such notice shall be deemed reasonable and proper if
given at least 10 days before such sale or other disposition. The Grantor shall
remain liable for any deficiency if the proceeds of any sale or other
disposition of the Collateral are insufficient to pay the Obligations and the
fees and disbursements of any attorneys employed by the Grantee to collect such
deficiency.

          9.  Limitation on Duties Regarding Preservation of Collateral.  The
              ---------------------------------------------------------
Grantee's sole duty with respect to the custody, safekeeping and physical
preservation of the Collateral in its possession, under Section 9-207 of the
Code or otherwise, shall be to deal with it in the same manner as the Grantee
deals with similar property for its own account.  Neither the Grantee nor any of
its directors, officers, employees or agents shall be liable for failure to
demand, collect or realize upon all or any part of the Collateral or for any
delay in doing so or shall be under any obligation to sell or otherwise dispose
of any Collateral upon the request of the Grantor or otherwise.

          10. Powers Coupled with an Interest.  All authorizations and agencies
              -------------------------------
herein contained with respect to the Collateral are irrevocable and powers
coupled with an interest.

                                      -8-
<PAGE>

          11.  Limitation on Lines of Business.  Nothing contained in this
               -------------------------------
Security Agreement shall be deemed or construed as modifying in any way the
restrictions on Grantor's activities as set forth in Section 11.9 of the Note
Purchase Agreement.

          12.  Severability.  Any provision of this Security Agreement which is
               ------------
prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction,
be ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

          13.  Section Headings.  The section headings used in this Security
               ----------------
Agreement are for convenience of reference only and are not to affect the
construction hereof or be taken into consideration in the interpretation hereof.

          14.  No Waiver; Cumulative Remedies.  The Grantee shall not by any act
               ------------------------------
(except by a written instrument pursuant to Section 15), delay, indulgence,
                                            ----------
omission or otherwise be deemed to have waived any right or remedy hereunder or
to have acquiesced in any Default or Event of Default or in any breach of any of
the terms and conditions hereof.  No failure to exercise, nor any delay in
exercising, on the part of the Grantee, any right, power or privilege hereunder
shall operate as a waiver thereof.  No single or partial exercise of any right,
power or privilege hereunder shall preclude any other or further exercise
thereof or the exercise of any other right, power or privilege.  A waiver by the
Grantee of any right or remedy hereunder on any one occasion shall not be
construed as a bar to any right or remedy which the Grantee or such Lender would
otherwise have on any future occasion.  The rights and remedies herein provided
are cumulative, may be exercised singly or concurrently and are not exclusive of
any rights or remedies provided by law.

          15.  Waivers and Amendments; Successors and Assigns.  None of the
               ----------------------------------------------
terms or provisions of this Security Agreement may be waived, amended,
supplemented or otherwise modified except by a written instrument executed by
the Grantor and the Grantee; provided that any provision of this Security
                             --------
Agreement may be waived by the Grantee; in a written letter or agreement
executed by the Grantee; or by telex or facsimile transmission from the Grantee.
This Security Agreement shall be binding upon the successors and assigns of the
Grantor and shall inure to the benefit of the Grantee and its successors and
assigns.

          16.  Governing Law.  THIS SECURITY AGREEMENT AND THE RIGHTS AND
               -------------
OBLIGATIONS OF THE PARTIES UNDER THIS SECURITY AGREEMENT SHALL BE GOVERNED BY,
AND BE CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW
YORK WITHOUT REGARD TO THE PRINCIPLES OF CONFLICT OF LAWS THEREOF OTHER THAN
SECTION 5-1401 OF THE GENERAL OBLIGATIONS LAW OF THE STATE OF NEW YORK, EXCEPT
FOR PERFECTION AND ENFORCEMENT OF SECURITY INTERESTS AND LIENS IN OTHER

                                      -9-
<PAGE>

JURISDICTIONS TO THE EXTENT THE LAW OF ANOTHER JURISDICTION IS MANDATORILY
APPLICABLE PURSUANT TO THE LAWS OF SUCH JURISDICTION.

          17.  Notices.  Notices hereunder may be given by mail, by telex or by
               -------
facsimile transmission, addressed or transmitted to the Person to which it is
being given at such Person's address or transmission number set forth in the
Note Purchase Agreement and shall be effective (a) in the case of mail, three
days after deposit in the postal system, first class postage pre-paid and (b) in
the case of telex or facsimile notices, when sent.  The Grantor may change its
address and transmission number by written notice to the Grantee, and the
Grantee may change its address and transmission number by written notice to the
Grantor.

          18.  Authority of Grantee.  The Grantor acknowledges that the rights
               --------------------
and responsibilities of the Grantee under this Security Agreement with respect
to any action taken by the Grantee or the exercise or non-exercise by the
Grantee of any option, right, request, judgment or other right or remedy
provided for herein or resulting or arising out of this Security Agreement shall
be governed by the Note Purchase Agreement.

          19.  Counterparts.  This Security Agreement may be executed in
               ------------
counterparts, and all of such counterparts taken together shall be deemed to
constitute one and the same instrument.

          20.  Termination.  Upon the earlier to occur of (a) the Initial Series
               -----------
B Closing Date and (b) the repayment of all amounts owing under the Extended
Payment Facility and the Grantor entering into the Credit Agreement and
obtaining term loans thereunder in an aggregate principal amount of $75,000,000
on or prior to September 30, 1998, the Security Agreement shall terminate and
Grantee, at the request and expense of Grantor, will promptly execute and
deliver to the Grantee the proper instruments (including Uniform Commercial Code
termination statements on form UCC-3) acknowledging the termination of the
Security Agreement, and will duly assign, transfer and deliver to the Grantor
(without recourse and without any representation or warranty of any law) such of
the Collateral as may be in the possession of the Grantee and has not
theretofore been disposed of or otherwise applied or released.

                                     -10-
<PAGE>

          IN WITNESS WHEREOF, the Grantor and the Grantee have caused this
Security Agreement to be duly executed and delivered as of the date first above
written.

                              TELECORP PCS, INC.


                              By: _______________________________
                                 Title:


                              LUCENT TECHNOLOGIES INC.

                              By: _______________________________
                                 Title:
<PAGE>

                                                                      SCHEDULE I
                                                           TO SECURITY AGREEMENT




                              TELECORP PCS, INC.
            1101 17th Street NW, 9th Floor, Washington D.C., 20036




                             LOCATION OF EQUIPMENT
                             ---------------------

<PAGE>

                                                                  EXHIBIT 10.2.1
                                   TeleCorp
                               General Agreement
                                for Purchase of
                       PCS Systems and Services between
                            Telecorp PCS, Inc. and
                           Lucent Technologies, Inc.
<PAGE>

                               TABLE OF CONTENTS
                                                                          Page


  GENERAL AGREEMENT FOR PURCHASE OF PERSONAL COMMUNICATIONS SYSTEMS AND
 SERVICES BETWEEN TELECORP PCS, INC. AND LUCENT TECHNOLOGIES INC.


     1. ARTICLE I GENERAL PROVISIONS APPLICABLE TO ENTIRE AGREEMENT......   2

      1.1  HEADINGS AND DEFINITIONS......................................   2

      1.2  TERM OF AGREEMENT.............................................   8

      1.3  SCOPE.........................................................   9

      1.4  MINIMUM MARKET COMMITMENT.....................................  10

      1.5  ADDITIONAL PURCHASES..........................................  10

      1.6  PLANNING INFORMATION..........................................  11

      1.7  ORDERS........................................................  12

      1.8  ORDER ACCEPTANCE..............................................  12

      1.9  CHANGES IN CUSTOMER'S ORDERS..................................  13

      1.10 PRICES, DISCOUNTS AND INCENTIVES..............................  13

      1.11 CO-OP MARKETING FUND..........................................  20

      1.12 INVOICES AND TERMS OF PAYMENT.................................  23

      1.13 PURCHASE MONEY SECURITY INTEREST..............................  25

      1.14 MOST FAVORED CUSTOMER.........................................  26

      1.15 DELIVERY AND INSTALLATION SCHEDULE............................  26

      1.16 SYSTEM LOCK DOWN; COMPLETION DELAY............................  27

      1.17 TRANSPORTATION................................................  28

      1.18 PACKING, MARKING, AND SHIPPING................................  29

      1.19 TITLE AND RISK OF LOSS........................................  29

      1.20 COMPLIANCE WITH LAWS..........................................  30

      1.21 TAXES.........................................................  31

      1.22 TRAINING......................................................  31

      1.23 TERMINATION FOR CONVENIENCE...................................  31

      1.24 CANCELLATION FOR BREACH.......................................  32

      1.25 PATENTS, TRADEMARKS AND COPYRIGHTS............................  32

                                      -i-
<PAGE>

                                                                         Page

     1.26 USE OF INFORMATION............................................  34

     1.27 NOTICES.......................................................  35

     1.28 RIGHT OF ACCESS...............................................  36

     1.29 INDEPENDENT CONTRACTOR........................................  36

     1.30 CUSTOMER'S REMEDIES...........................................  36

     1.31 FORCE MAJEURE.................................................  38

     1.32 ASSIGNMENT....................................................  38

     1.33 PUBLICITY.....................................................  39

     1.34 APPLICABLE LAW................................................  39

     1.35 SURVIVAL OF OBLIGATIONS.......................................  39

     1.36 SEVERABILITY..................................................  39

     1.37 NON-WAIVER....................................................  40

     1.38 CUSTOMER RESPONSIBILITY.......................................  40

     1.39 PUBLICATION OF AGREEMENT......................................  40

     1.40 ARBITRATION...................................................  40

    2.ARTICLE II PROVISIONS APPLICABLE TO THE PURCHASE OF PRODUCTS......  41

     2.1  GENERAL.......................................................  41

     2.2  PRODUCT FEATURES COMMITMENT...................................  41

     2.3  PRODUCT AVAILABILITY..........................................  43

     2.4  DOCUMENTATION.................................................  43

     2.5  PRODUCT COMPLIANCES...........................................  43

     2.6  PRODUCT CHANGES...............................................  44

     2.7  CONTINUING PRODUCT SUPPORT- PARTS AND SERVICES................  45

     2.8  SPECIFICATIONS................................................  46

     2.9  CUSTOMER TECHNICAL SUPPORT....................................  46

     2.9A CLASS A AND B CHANGES.........................................  46

     2.10 PRODUCT WARRANTY..............................................  50

    3.ARTICLE III PROVISIONS APPLICABLE TO THE LICENSING OF SOFTWARE....  55

     3.1  GENERAL.......................................................  55

                                     -ii-
<PAGE>

                               TABLE OF CONTENTS
                                  (continued)
                                                                         Page

     3.2  LICENSE.......................................................  55

     3.3  TITLE, RESTRICTIONS AND CONFIDENTIALITY.......................  56

     3.4  CHANGES IN LICENSED MATERIALS.................................  56

     3.5  MODIFICATIONS TO SOFTWARE.....................................  57

     3.6  MODIFICATION BY CUSTOMER......................................  57

     3.7  RELATED DOCUMENTATION.........................................  57

     3.8  SOFTWARE WARRANTY.............................................  57

     3.9  CANCELLATION OF LICENSE.......................................  61

     3.10 TAXES APPLICABLE TO SOFTWARE..................................  62

     3.11 LIMITED TRANSFERABILITY.......................................  62

     3.12 AVAILABILITY AND SUPPORT OF LICENSED MATERIAL FEATURES/
          LICENSED MATERIAL UPDATES.....................................  63

     3.13 YEAR 2000 COMPLIANCE WARRANTY.................................  64

4.ARTICLE IV............................................................

     4.1  GENERAL.......................................................  65

     4.2  ACCEPTANCE OF INSTALLATION....................................  65

     4.3  CONDITIONS OF INSTALLATION AND OTHER SERVICES PERFORMED ON
          CUSTOMER'S SITE...............................................  66

          4.3.1  ITEMS PROVIDED BY CUSTOMER.............................  67

          4.3.2  ITEMS TO BE FURNISHED BY SELLER........................  70

     4.4  WORK DONE BY OTHERS...........................................  72

     4.5  SERVICES WARRANTIES...........................................  72

5.ARTICLE V  ENTIRE AGREEMENT AND EXECUTION ............................  73

     5.1  ENTIRE AGREEMENT..............................................  73

     5.2  COUNTERPARTS..................................................  73

                                     -iii-
<PAGE>

                                  TABLE OF CONTENTS

                                                                           Page

ATTACHMENT A - PRICING

ATTACHMENT B - FINANCING AGREEMENTS

ATTACHMENT C - RESPONSIBILITY MATRIX

ATTACHMENT D - ACCEPTANCE TESTING PLAN/PERFORMANCE METRICS

ATTACHMENT E - SUBSCRIBER PROJECTIONS

ATTACHMENT F - MILESTONE TIMELINE

ATTACHMENT G - DUPLEXER & FILTER SPECIFICATIONS

ATTACHMENT H - FORM OF EXTENDED WARRANTY AGREEMENT

ATTACHMENT I - OPTIONAL SOFTWARE FEATURE LIST

                                      -i-
<PAGE>

                        GENERAL AGREEMENT FOR PURCHASE
                OF PERSONAL COMMUNICATIONS SYSTEMS AND SERVICES

     This is an agreement ("Agreement")(No. LNM980501JATEL) between Lucent
Technologies Inc., ("Seller" or "Lucent"), a Delaware corporation having an
office at 283 King George Road, Warren, New Jersey 07059, and TeleCorp PCS, Inc.
("Customer"), a Delaware corporation having an office at 1101 17th Street, N.W.,
Suite 900, Washington, D.C. 20036.

     WHEREAS, the Customer desires to provide Personal Communications Services
("PCS") at or near the 1.9 GHz bands under a license(s) issued by the Federal
Communications Commission ("FCC"); and

     WHEREAS, the Customer desires Seller to be a substantial supplier of the
wireless base stations, switches, power, cable and transmission equipment and
system integration services to include but not be limited to engineering
services, such as preparation of equipment specifications, and installation of
the networks, such as equipment installation, equipment removal and cable
mining, and maintenance and repair of their networks ("Services");

     NOW, THEREFORE, the parties agree to the following terms and conditions.

                                 1.  ARTICLE I
               GENERAL PROVISIONS APPLICABLE TO ENTIRE AGREEMENT

1.1  HEADINGS AND DEFINITIONS

     All headings used in this Agreement are inserted for convenience only and
are not intended to affect the meaning or interpretation of this Agreement or
any clause.  For the purpose of this Agreement, the following definitions will
apply:

     "Acceptance Date" means the date on which an Initial System or Service is
     accepted or, as provided in this Agreement, is deemed to have been accepted
     by Customer, and may be referred to as "Acceptance" or in the verb form
     "Accepted";

     "Acceptance Test" means the test to be performed under the terms of this
     Agreement, and specified in Attachment D, during the Acceptance Test Period
     to determine whether an Initial System in each MTA or Market substantially
     conforms
<PAGE>

     to all applicable Specifications and thereafter the tests to be performed
     for subsequent installation of Products to determine whether such products
     meet the system element specifications;

     "Acceptance Test Period" means the period of time in days agreed to by the
     parties and specified in Attachment D allowed for performance of an
     Acceptance Test;

     "Advertising" means all advertising, sales promotion, press releases, and
     other publicity matters relating to performance under this Agreement;

     "Affiliate" of a corporation means its Subsidiaries, any company of which
     it is a Subsidiary, and other Subsidiaries of such company, and any entity
     controlled, controlling or under common control with such corporation;

     "Annual Release Maintenance Fee" means those recurring annual fees of the
     Seller, invoiced annually in January and based upon the number of MSCs
     installed and BTSs installed at the time the invoice is issued, full
     payment of which entitles the Customer to receive all core features in
     standard software releases, software enhancements and software upgrades
     applicable to TDMA PCS Products (but not including Optional Software
     Features) which will be made available to Customer when made generally
     available by Seller during the period for which the fees were paid. All
     Annual Release Maintenance Fees shall be entitled to the discounts set
     forth in Section 1.10.1;

     "Class A Change" means a modification of existing Product to remedy a non
     conformance to Seller's Specifications required to correct design defects
     of a type that result in electrical or mechanical inoperative conditions,
     extremely unsatisfactory operating conditions, or which is recommended to
     enhance safety;

     "Class B Change" means a change that provides Product enhancements
     resulting in new features or improved service capabilities;

     "Customer Price List" means Seller's published "Price Reference Guide" or
     other price notification releases furnished by Seller for the purpose of
     communicating Seller's list pricing or pricing related information to
     customers of Seller; however, this does not include firm price quotations;
<PAGE>

     "Designated Processor" means the Product for which the licenses to use
     Licensed Materials are initially granted;

     "Effective Date" shall mean May 1, 1998;

     "Final Acceptance" means the process set forth in Section 4.2 pursuant to
     which Customer accepts Seller's installation of its Products or Licensed
     Materials;

     "Firmware" means a combination of (i) hardware and (ii) Software
     represented by a pattern of bits contained in such hardware;

     "Fit" means physical size or mounting arrangement (e.g., electrical or
     mechanical connections);

     "Form" means physical shape;

     "Function" means product features;

     "Force Majeure" means fires, strikes, riots, embargoes, explosions,
     earthquakes, floods, wars, water, the elements, labor disputes, government
     requirements, civil or military authorities, acts of God or by the public
     enemy, inability (affecting Seller's industry as a whole) to secure raw
     materials or transportation facilities, acts or omissions of carriers or
     suppliers, or other causes beyond a party's control whether or not similar
     to the foregoing;

     "Hazardous Material" means material designated as a "hazardous chemical
     substance or mixture" by the Administrator, pursuant to Section 6 of the
     Toxic Substance Control Act, a "hazardous material" as defined in the
     Hazardous Materials Transportation Act (49 U.S.C. 1801, et seq.), or a
     "hazardous substance" as defined in the Occupational Safety and Health Act
     Hazard Communication Standard (29 CFR 1910.1200);

     "In Revenue Service" means use of a Product or any part thereof for
     commercial service (exclusive of operations for purposes of conducting
     Acceptance Tests), whether or not revenue is actually being generated;

     "Information" means all documentation and technical and business
     information in whatever form recorded, which a party may furnish under, or
     has furnished in contemplation of, this Agreement;
<PAGE>

     "Initial System" means the PCS Systems ordered pursuant to the terms of
     this Agreement for each Market that is scheduled for optimization prior to
     the Acceptance jointly established by the Parties, reduced by the amount of
     any Products, for each date(s) and Licensed Materials, which due to fault
     of the Customer cannot be properly installed, integrated and optimized
     prior to System Acceptance without additional expense to Seller;

     "Licensed Area" means an area for which the Federal Communications
     Commission ("FCC") has granted a permit to construct a Personal
     Communication Services System;

     "Licensed Materials" means the Software and Related Documentation for which
     licenses are granted by Seller under this Agreement; no Source Code
     versions of Software are included in Licensed Materials;

     "Market" means a geographic area in which Customer is licensed to provide
     PCS services, consisting of at least an initial MSC (access manager and
     5ESS switch) and a minimum of 50 TDMA PCS mini-cells.

     "Material Service Impact" means an operating characteristic of Seller's
     Products or Licensed Materials having a materially adverse impact on
     Customers ability to network, administer, operate or maintain its Network
     Wireless System obtained under this Agreement, to render billings to
     Customer's subscribers, or to continue to furnish or to offer to such
     subscribers service functionalities and features;

     "Operating Affiliates" means a subsidiary of TeleCorp PCS, Inc. which is
     authorized to operate the FCC PCS Licenses in any of the Markets listed in
     Section 1.4 or any additional Markets awarded to Seller pursuant to the
     provisions of this contract;

     "Optional Software Features" means software features for PCS Products
     available to Seller's customers on an optional, separate fee basis;

     "PCS System" means Personal Communications Services System, which would
     consist of, the minimally necessary Products, Licensed Materials, Services,
     and integration thereof necessary to provide PCS within any definable
     geographic area;
<PAGE>

     "Product" means PCS TDMA and/or Cellular TDMA and future generation
     wireless Products (including hardware which is part of firmware) systems,
     equipment, and parts thereof, but the term does not mean Software whether
     or not such Software is part of Firmware;

     "Product Manufacturing Information" means manufacturing drawings and
     specifications of raw materials and components, including part
     manufacturing drawings and specifications covering special tooling and the
     operation thereof, and a detailed list of all commercially available parts
     and components purchased by Seller on the open market disclosing the part
     number, name and location of the supplier, and price lists;

     "Provisional Acceptance" means that the Customer acknowledges that the
     Products Licensed Material and installation services have been performed as
     required and accepts them pending satisfactory completion of system
     optimization;

     "Related Documentation" means materials useful in connection with Software,
     such as, but not limited to, flow charts, logic diagrams, program
     descriptions, and specifications. No Source Code versions of Software are
     included in Related Documentation;

     "Repair Parts" means new, remanufactured, reconditioned, refurbished, or
     functionally equivalent parts for the maintenance, replacement, and repair
     of Products sold pursuant to this Agreement;

     "Seller's Manufactured Product" means a Product manu-factured by Seller or
     purchased by it pursuant to its procurement specifications (e.g., KS or
     AT);

     "Seller's Standard Charges" means Seller's applicable rates and charges
     then in effect for labor and materials as determined from Seller's Customer
     Price List, less any applicable discounts;

     "Services" means the performance of work for the Customer and includes but
     is not limited to: (1) engineering Services such as preparation of
     equipment specifications, preparation and updating of office records, and
     preparation of a summary of material not specifically itemized in the
     Order; (2) installation Services such as installation equipment removal,
     and cable mining; and (3) other Services
<PAGE>

     such as maintenance and repair. Services do not include Turnkey Services;

     "Software" means a computer program consisting of a set of logical
     instructions and tables of information which guide the functioning of a
     processor; such program may be contained in any medium whatsoever,
     including hardware containing a pattern of bits representing such program,
     but the term "Software" does not mean or include such medium;

     "Source Code" means any version of Software incorporating high-level or
     assembly language that generally is not directly executable by a processor.
     Except as may be expressly provided, this Agreement does not require Seller
     to furnish any Source Code;

     "Specifications" means the specifications for Products and/or Licensed
     Materials furnished by Seller to Customer as set forth in this Agreement or
     its Attachments;

     "Start Date" means, the date upon which Seller has received Customer's
     written notice that Customer has performed all Customer responsibilities
     and furnished all necessary items required prior to Seller's commencement
     of installation of the Initial System;

     "Subsidiary" of a company means a corporation, the shares or other
     securities holding a majority of the votes for election of directors which
     are now or hereafter owned or controlled by such company either directly or
     indirectly; but any such corporation shall be deemed to be a Subsidiary of
     such company only as long as such ownership or control exists;

     "System Acceptance" means Customer's acceptance of the Initial System in
     each of the Markets pursuant to the terms of Attachment D;

     "Territory" means the 50 states of the United States plus the District of
     Columbia and the territories and possessions of the United States;

     "Turnkey Item" means a good or product or a partial assembly of goods or
     products furnished and, perhaps, installed by Seller as part of a Turnkey
     Service but not furnished by Seller pursuant to this Agreement. A Turnkey
     Item is not a Vendor Item or a Product as described in this Agreement;
<PAGE>

     "Turnkey Services" means items and activities normally the responsibility
     of the Customer under this Agreement, which may include, but shall not be
     limited to, project management, field coordination, construction and system
     testing. Turnkey Services do not include, and are separate from, Seller's
     normal engineering and installation Services;

     "Use" with respect to Licensed Materials means loading the Licensed
     Materials, or any portion thereof, into a processor for execution of the
     instructions and tables contained in such Licensed Materials;

     "Vendor Item" means a Product or partial assembly of Products furnished by
     Seller but neither manufactured by Seller nor purchased by Seller pursuant
     to its procurement specifications.  A Vendor Item is not a Turnkey Item;
     and

     "Warranty Period" means the period of time listed in the respective
     WARRANTY clauses which, unless otherwise stated, commences on the date of
     shipment, or if installed by Seller on Acceptance by Customer or thirty
     (30) days from the date Seller submits its notice of completion of its
     installation whichever is sooner, and for Services, commences on the date
     the Service is completed.

1.2  TERM OF AGREEMENT

     1.2.1   This Agreement shall be effective on the Effective Date and, except
as otherwise provided herein, shall continue in effect for a period of [_] [_]
[_] years. Within sixty (60) days of the scheduled expiration date of this
Agreement, the parties shall meet to discuss extension of this Agreement for
some additional length of time. An obligatory condition of such extension shall
be that the Products, Licensed Materials and Annual Maintenance Fees, as
specified in Attachment A of this Agreement, shall not exceed the amount
specified in Seller's then effective Customer Price List less the applicable
discounts set forth in Section 1.10. The modification or termination of this
Agreement shall not affect the rights or obligations of either party under any
order accepted by Seller before the effective date of the modification or
termination.

     1.2.2   Customer's obligations under this Agreement shall be contingent on
(i) a final closing under the terms of the Securities Purchase Agreement dated
January 23, 1998 among Customer, AT&T Wireless and certain other parties for the
joint development of TDMA PCS Networks serving portions of the Boston,
<PAGE>

Little Rock, Louisville, St. Louis, Houston, Memphis, and New Orleans major
trading areas (MTAs); and (ii) the execution of the Financing Agreements
attached hereto as Attachment B and consummation of the transactions
contemplated thereby.

     1.2.3   The Parties agree that Customer may wish to purchase certain
Products from Seller in advance of the satisfaction of the contingencies set
forth in Section 1.2.2 being completed. Such purchases shall be subject to the
terms and conditions contained in this Agreement and not exceed a total of forty
million dollars.

     1.2.4   Should, despite the Parties best efforts, the contingencies set
forth above not be met on or before September 30, 1998, this Agreement shall be
terminated by either party giving notice in writing and the Parties shall have
no further obligation to each other, except Customer may either retain the
purchased Products at the prices set forth in this Agreement or return the
purchased Products to the Seller and receive a full refund of any amounts
actually paid to Seller and shall not be responsible for the Deferred Payments
under Section 1.12(d).

1.3  SCOPE

     During the term of this Agreement, Seller agrees to sell (or, with respect
to licensed Materials, license) to Customer or its Operating Affiliates for the
use and benefit of Customer or its Operating Affiliates and not for resale,
Products (with associated Licensed Materials, licenses) and associated Services,
as and to the extent ordered by Customer or its Operating Affiliates pursuant to
orders issued by such entity and accepted by Seller hereunder. Seller agrees
that it will offer to Customer or its Operating Affiliates all items, products
or services generally offered or made available to other providers of
telecommunications services, but nothing herein shall be deemed to require
Seller to disaggregate into subassemblies, components or other parts any such
items, products or services, which Seller does not disaggregate for others.

     The terms and conditions of this Agreement shall apply to all orders for
Products and Licensed Materials and Services listed in Customer Price Lists and
for related Services placed by Customer or its Operating Affiliates. Unless
otherwise specifically agreed in writing by Seller, Seller's provision of any
other item, product or service not listed in the then current Customer Price
List is not subject to the terms and conditions of this Agreement, but to a
separate written
<PAGE>

agreement of the parties or, if none, to Seller's standard term and conditions
for such item, product or service. Seller agrees that Seller will maintain and
from time to time furnish to Customer a copy of such Customer Price Lists, which
shall contain all of Seller's currently available commercial offerings of
Seller's PCS and PCS related telecommunications systems.

     Provided that Customer is not undertaking the payment obligations of an
Affiliate, Customer will have a reasonable opportunity to approve any Affiliates
seeking to purchase under this Agreement, such approval not to be unreasonably
withheld, based upon (i) reasonable credit criteria within the context of the
PCS industry, (ii) whether or not such Affiliate has in the past materially
breached agreements with Seller, (iii) whether or not the Affiliate (or any of
its Owners or Partners) is a direct competitor of Seller in the wireless
infrastructure manufacturing business, and (iv) whether or not the Affiliate is
otherwise engaged with Seller in an agreement for the purchase and/or supply of
PCS TDMA wireless technology.

1.4  MINIMUM MARKET COMMITMENT

     With respect to each of the following Markets, if Customer, in its sole
discretion, elects to build out an Initial System in such Market, Seller agrees
to engineer, furnish and install and Customer agrees to purchase the PCS
Products, Licensed Materials and Services which are sufficient to build out the
Initial System for such Markets.

     Boston
     New Orleans
     Little Rock
     Memphis
     St. Louis

     Notwithstanding the foregoing, Customer may, in its sole discretion,
substitute a new Market of similar size for any of the above Markets.

1.5  ADDITIONAL PURCHASES

     In the event that Customer or its Affiliates, wish to obtain additional
Products, Licensed Materials and Services to expand the coverage of or add
features to any Initial System constructed or initiated under this Agreement ,
orders for such additional items received by Seller during the term of this
Agreement shall be received and accepted subject to the terms and conditions
hereof.
<PAGE>

In addition, if Customer or its Affiliates, at their option, award Seller any
additional Markets, the terms and conditions of this Agreement shall apply to
the purchase of Products, Licensed Materials and Software for such additional
Markets

1.6  PLANNING INFORMATION

     Upon Seller's request, and to the extent reasonable, feasible, and
available, Customer will provide to Seller forecasts of Customer's annual
Product, Licensed Materials, and Services needs. Customer shall provide to
Seller a forecast of the number of base stations, growth frames, voice channels,
CSU's, Power Cabinets, and 5ESS Switches, among other necessary components,
needed for the PCS System. This forecast is expected to be accurate within +/-
25%.

     Except for the initial order, nine (9) months prior to requested ship date,
Customer shall provide to Seller an updated forecast of the quantity of Products
necessary for the PCS System as indicated above. This forecast is expected to be
accurate within +/- 25%. If the accuracy of this forecast deviates from the
stated parameters, Seller will not be penalized for any resulting delays for
quantities above the forecast.

     There shall be a twelve (12) week interval between order and ship date for
switching equipment orders for each Initial System, unless the parties mutually
agree to a shorter interval.  For all other switch orders, no less than twenty
(20) weeks prior to the requested ship date for switching equipment, Customer
shall provide to Seller a final forecast of the number of units of switch
equipment required for the PCS System as indicated above. No less than four (4)
weeks prior to the requested ship date for base stations, Customer shall provide
to Seller a final forecast of the number of base station units required for the
PCS System as indicated above. The final forecasts shall be submitted as orders
under clauses 1.7 and 1.8. Customer may postpone orders for base stations
without penalty up to one (1) week prior to the requested ship date, however
Seller may elect to ship base stations in accordance with Section 1.17. Customer
may postpone orders for switching equipment without penalty up to three weeks
prior to the requested ship date provided that the equipment ships within 4
weeks of the original requested ship date.

     Any postponement of an order by Customer pursuant to this Section 1.6 shall
not relieve Customer of its purchase obligations for the Initial Systems set
forth in Section 1.4 and
<PAGE>

Attachment A and the New Market Incentive purchase commitment set forth in
Section 1.10.1.1.10.

1.7  ORDERS

     All orders submitted by Customer shall be deemed to incorporate and be
subject to the terms and conditions of this Agreement unless otherwise agreed by
both parties in writing.

     All orders, including electronic orders, shall contain the information
necessary for Seller to fulfill the order.

     All schedules and requested dates are subject to Seller's concurrence;
provided if orders are made within the agreed to lead times Seller shall not
withhold its concurrence to the requested dates.

     No provision or data on any order or contained in any documents attached to
or referenced in any order, any subordinate document (such as shipping
releases), shall be binding, except data necessary for Seller to fill the order.
All such other data and provisions are hereby rejected. Electronic orders shall
be binding on Customer notwithstanding the absence of a signature, so long as
such orders have been verified as valid purchase orders by Customer's technical
department and finance department in accordance with procedures to be mutually
agreed upon by the parties.

1.8  ORDER ACCEPTANCE

     All orders are subject to acceptance by Seller. Seller shall acknowledge
the date of order receipt either in writing or electronic data interface format
within 72 hours. The acknowledged date of order receipt is the price effective
date for purposes of this Agreement.

     Seller agrees to deliver and install Products and Licensed Materials and
perform Services in accordance with Seller's standard delivery and installation
schedules being quoted at the time such order is placed, or the delivery and
installation schedules otherwise agreed pursuant to Section 1.6.

     If Customer submits an order requesting a delivery or completion interval
less than the interval listed in the applicable Customer Price List, or as set
forth in Section 1.6, Seller will accept such order only for its standard
interval. Seller will, however, attempt to meet Customer's requested interval
and provide confirmation or denial of the requested
<PAGE>

          guidelines for accruals and reimbursements of qualifying promotional
          activities and the procedures and documentation necessary for such
          reimbursements.

     b.   Without limiting the foregoing or anything in this Agreement, Customer
          expressly agrees to submit all proposed usage of Seller's Indicia (as
          defined under "USE OF MARKS" below) for approval by the Seller Co-
          Marketing Program Office on such forms as may be developed by Seller
          from time to time, and shall not use such Indicia unless and until the
          Seller Co-Marketing Program Office grants such approval. Seller shall
          either accept or reject Customer's proposed usage of Seller's Indicia
          within three (3) business days of acknowledged receipt of Customer's
          request. If no response is rendered within this time period, the
          proposed usage shall be deemed approved.

     c.   Without limiting the foregoing or anything in this Agreement, Customer
          acknowledges it has no ownership or other interest in the Indicia and
          shall make no claim to such Indicia.

     d.   Without limiting the foregoing or anything in this Agreement, Customer
          expressly agrees that accruals shall be only for qualifying purchases
          of specific Products or Software for its own use and not for resale.

     e.   Without limiting the foregoing or anything in this Agreement, Customer
          expressly agrees to submit requests for reimbursement for qualifying
          promotions within ninety days after deployment of the subject
          promotional activity and to utilize reimbursement funds within one
          year of the time the accrual is reported to Customer.

     USE OF MARKS

     a.   The use of Seller's tradenames, trademarks, trade devices, logos,
          codes, Co-Marketing Brand and logo or other symbols (collectively
          "Indicia") shall be solely for the purpose of and in the manner
          permitted by the Program Documentation. Seller hereby grants Customer
          permission to use Indicia in Customer's marketing and advertising of,
          and in Customer's publicity relating to, the Products and Agreements
          identified in Program Documentation, PROVIDED such use conforms to
          Seller
<PAGE>

          standards and guidelines contained in the Program Documentation which
          Seller may furnish from time to time. Without limiting the terms of
          such Program Documentation, the following shall also apply: (1)
          Customer may not conduct business under Seller's name or logo; (2)
          Customer may not use any of Seller's Indicia or variations thereof to
          identify Customer or Customer's products or services except as
          specifically permitted by the Seller Co-Marketing Program Office
          identified in the Program Documentation; and (3) Customer may not use
          any of Seller's Indicia in a manner that is likely to confuse the
          public concerning the relationship of the parties. Customer's use of
          Indicia shall inure to the benefit of Seller and shall not invest in
          Customer any rights in or to the Indicia. All uses of Indicia by
          Customer shall be subject to prepublication or pre-use review and
          written approval by Seller. If, in Seller's judgment, any use of
          Indicia by Customer is deemed detrimental to the Indicia or Seller's
          reputation, or is deemed otherwise undesirable, Seller may withdraw
          such permission without liability as a result thereof.

     b.   Customer agrees that it has no exclusive right to use of Indicia as
          defined herein in any Market or for any Product identified herein.
          Seller expressly reserves the right to contract with others to
          promote, market, sell and/or install Products, to use the Indicia and
          to permit others to engage in such activities at any time and in any
          place.

1.12  INVOICES AND TERMS OF PAYMENT

     a.   For the Products and Licensed Materials (including transportation
          charges and taxes, if applicable), comprising the Initial System for a
          Market as set forth on Attachment A, Customer shall be invoiced as
          follows:

          a)   85% of the purchase price on delivery or as soon thereafter as
               practicable

          b)   10% of the purchase price on System Acceptance of the Initial
               System

          c)   5% of the purchase price on completion of all punch list items
<PAGE>

          For orders submitted after Acceptance of an Initial System, ninety
          percent (90%) of the purchase price (including transportation and
          taxes, if applicable) will be invoiced on delivery, or as soon
          thereafter as possible. The remaining ten percent (10%) shall be
          invoiced on Final Acceptance of installation on a unit by unit basis.

          Invoicing for the four million ($4,000,000) dollar Optional Feature
          RTU per MSC shall occur on delivery, and payment for said invoices
          shall be due thirty (30) days after Acceptance of the Initial System.

          In every case, engineering will be billed upon main shipment of
          Products and installation will be billed as performed or as soon
          thereafter as practical.

     b.   Except as set forth in paragraph (d) below, Customer shall pay these
          invoiced amounts, less any disputed amounts, within thirty (30) days
          from the date of Seller's invoice. Delinquent payments are subject to
          a late payment charge at the rate of one and one-half percent (1-1/2%)
          per month, or portion thereof, of the amount due (but not to exceed
          the maximum lawful rate). Any disputed items which are determined to
          be validly billed are due for payment based upon the original invoice
          date and will be subject to a retroactive late payment charge based
          upon the original invoice date. Customer shall notify Seller of any
          disputed invoice amounts within thirty (30) days from the date of the
          invoice. Seller may apply any credit which remains outstanding.

     c.   Customer shall pay the invoiced amounts due on completion of all punch
          list items, less any disputed amounts, within ten (10) days from the
          date of Seller's invoice. No late payment charges will accrue until
          after thirty (30) days of the date of Seller's invoice.

     d.   Notwithstanding anything herein to the contrary, Customer may defer
          payment (the "Deferred Payments") on all invoices for Customer
          Products, Licensed Materials and Services purchased by Customer or its
          Operating Affiliates for which payment would be due pursuant to
          subsections (a) and (b) above until the later of (i) September 30,
          1998, or (ii) the initial closing of Customer's senior credit
          facility. The
<PAGE>

          amounts owed to Seller for Deferred Payments shall be payable in full,
          along with associated carrying costs (prime plus 1.9%), upon the
          earlier of (i) September 30, 1998, or (ii) the initial closing of the
          senior credit facility of the Customer. The aggregate amount of all
          outstanding invoices subject to the Deferred Payment arrangement shall
          at no time be greater than $40 million, exclusive of associated
          carrying costs. If such outstanding invoice amount exceeds $40
          million, the Customer shall immediately pay invoices sufficient to
          reduce the balance below $40 million, exclusive of associated carrying
          costs. Customer shall also pay invoices in accordance with Sections 1.
          12(a) and 1. 12(b) if using the Deferred Payment option would cause
          the outstanding invoice amount to exceed $40 million.

1.13  PURCHASE MONEY SECURITY INTEREST

     a.   Seller reserves and Customer agrees that Seller shall have a purchase
          money security interest in all Products and Licensed Materials
          supplied to Customer by Seller under this Agreement until any and all
          Deferred Payments due Seller under this Agreement are paid in full.
          Seller shall have the right, at anytime and without notice to customer
          to file in any state or local jurisdiction such financing statements
          (e.g UCC-1 financing statements, as Seller deems necessary to perfect
          its purchase money security interest hereunder. Upon request, by
          Seller, Customer hereby agrees to execute all documents necessary to
          secure Seller's purchase money security interest including without
          limitation, UCC -1 or such other documents Seller deems reasonably
          necessary to evidence its security interest. Notwithstanding the
          foregoing obligation of Customer to execute, Customer hereby appoints
          Seller as its attorney-in-fact for purpose of executing and filing
          such financing statements and such other documents prepared by Seller
          or its designated agent for purposes of perfecting Seller's security
          interest hereunder.

     b.   Seller shall provide Customer promptly following any such filing with
          a copy of all such Financing Statements together with a listing of a
          filing number and location sufficient to enable Customer's lenders to
          arrange for termination of such Financing
<PAGE>

          Statements upon closing Customer's senior credit facility.

     c.   In addition to any other remedy available to Seller as provided herein
          for any failure of Customer to pay the purchase price, by common law
          and by statute, Seller may exercise its right to reclaim all Products
          and Licensed Materials sold to Customer pursuant to UCC-202 or such
          other applicable provision as it may exist from state to state, upon
          discovery of Customer insolvency, provided Seller demands in writing
          reclamation of such goods before ten (10) days after receipt of such
          goods by Customer, or if such ten (10) days period expires after the
          commencement of a bankruptcy case, before twenty (20) days after
          receipt of such goods by the Customer.

1.14  MOST FAVORED CUSTOMER

     At any time during the Term of this Agreement, Customer will receive
Products, Licensed Materials and Services at prices and on payment terms and all
other contract terms (including financing) no less favorable to the Customer
when viewed collectively than those offered or made available by the Seller to
any other AT&T Wireless Affiliate within the United States who are involved in
transactions of similar or lesser volumes. For the purposes of this section, the
other AT&T Wireless Affiliates, shall consist of Mercury PCS, Triton, Wireless
One, Americall and Triad.

     To the extent Seller offers or provides more favorable contract terms to
another AT&T Wireless Affiliate (the "Offer"), pursuant to this section, it
shall commencing on the effective date of such Offer prospectively adjust its
prices, payment terms and/or other contract terms to Customer so as to implement
the more favorable contract terms contained in the Offer. In addition, prior to
System Acceptance in each of the first five Markets, Seller shall retroactively
apply the more favorable offer term for all Customer orders issued during the
ninety (90) day period prior to the effective date of the Offer.

1.15  DELIVERY AND INSTALLATION SCHEDULE

     Customer shall notify Seller of those PCS site(s), ready for installation
of Product and that Customer's responsibilities referred to in the
Responsibility Matrix and Article IV relating to such sites have been performed
or furnished in accordance with Attachment F or, if Attachment F is not
applicable, by the
<PAGE>

date mutually agreed to by the parties prior to order acceptance. Seller shall
have access to such sites on and from the date of Seller's receipt of such
notification (the "Start Date"). If Seller is notified by Customer that a PCS
site is ready and finds upon arrival that the site does not meet the criteria
indicated on the Responsibility Matrix and in Article IV (an "Erroneous
Dispatch"), Customer shall pay an additional $350 for each Erroneous Dispatch.
If Seller incurs extraordinary costs due to an Erroneous Dispatch, Customer
agrees to negotiate in good faith appropriate compensation for such
extraordinary costs.

     Additionally, except to the extent covered by Attachment F, the parties
agree to develop, by mutual agreement, delivery and installation schedules under
which Seller shall complete its obligations as required under the Responsibility
Matrix, and/or any subsequent order, and submit notices of completion to
Customer on or before the Installation Complete date.

1.16  SYSTEM LOCK DOWN; COMPLETION DELAY
      ----------------------------------

          a)   System Lock Down For Each MTA listed in Section 1.4. On the
               ---------------------------------------------------
               "System Lock Down" as reasonably determined by Customer and to be
               inserted on the Milestone Timeline attached as Exhibit F, the
               date (the "System Lock Down Date) of which shall be sixty (60)
               days prior to Customer's anticipated date of System Acceptance
               (the date falling sixty (60) days after the System Lock Down Date
               is the "Guaranteed System Acceptance Date"), the Seller shall
               provide the Customer with a final revised RF Engineering Plot and
               the Customer shall use its best efforts to deliver to Seller one-
               hundred percent (100%) of the BTS sites constituting the Initial
               System. Construction and Site Acceptance check-off (as defined by
               the Site Acceptance checklist) of at least sixty-five percent
               (65%) of the BTS sites included in such RF Engineering Plot shall
               have been completed on the System Lock Down Date. During the
               thirty (30) day period prior to the Guaranteed System Acceptance
               Date, Customer cannot include more than fifteen (15%) percent of
               the BTS sites in the revised RF Engineering Plot for each Initial
               System. If at this time key missing cells from the RF Engineering
               Plot cause the inability of Seller to meet System Acceptance
               metrics as defined in Attachment D, then Seller
<PAGE>

               and Customer shall together redefine any affected drive routes so
               as to exclude these missing cells from the Initial System
               Acceptance metrics. Any BTS sites constructed in the fifteen (15)
               day period prior to the Guaranteed System Acceptance Date shall
               not be included as part of the System Acceptance process set
               forth in Attachment D. However, Seller will use its best efforts
               to install and integrate these sites prior to the Guaranteed
               System Acceptance Date. On the System Lock Down Date, or as soon
               as reasonably practicable, the Seller shall begin to perform
               System Acceptance Tests and Systemwide RF optimization services
               in accordance with Exhibit D attached hereto.

          b)   Completion Delay. For each day that the Initial System in a
               ----------------
               Market fails to achieve System Acceptance due to the sole fault
               of Seller on or before the Guaranteed System Acceptance Date,
               Seller will pay to Customer an amount equal to .35 % (thirty-five
               hundredths of one percent) of the aggregate purchases ordered for
               such market through the Guaranteed System Acceptance Date for
               each day from the Guaranteed System Acceptance Date until the
               date when System Acceptance occurs (the "Late Acceptance
               Payment"). The amount due to Customer under the provisions of
               this subsection 1.16(b) shall be credited against any outstanding
               amounts due Seller for the affected Market up to a maximum of the
               unbilled amount to be invoiced upon System Acceptance of the
               Initial System and upon completion of all punch list items.

1.17  TRANSPORTATION

     Seller's prices for Products and Licensed Materials, as specified in
Section 1.10, do not include freight charges or related transportation Services
including hauling and hoisting, or charges therefor, unless expressly stated in
writing by Seller to the contrary.  At Customer's request, Seller, in accordance
with its normal practices, will arrange for transportation for such items to the
site designated by Customer.  In such cases, Seller will prepay transportation,
if appropriate, and invoice transportation charges without mark-up.
<PAGE>

     If Customer elects to route Products and/or Licensed Materials or to
arrange for transportation, Seller will provide related services subject to a
separate fee.

     Premium transportation will only be used with Customer's concurrence.

1.18  PACKING, MARKING, AND SHIPPING

     Seller shall, at no additional charge, pack and mark shipping containers in
accordance with its standard practices for domestic shipments.  Where in order
to meet Customer's requests, Seller packs and/or is required to mark shipping
cartons in accordance with Customer's specifications, Seller shall invoice
Customer additional charges for such packing and/or marking.

     Seller shall:

          a)   Enclose a packing memorandum with each shipment and, if the
               shipment contains more than one package, identify the package
               containing the memorandum; and

          b)   Mark Products as practicable for identification in accordance
               with Seller's marking specifications (e.g., model/serial number
               and month and year of manufacture).

     Partial shipments under an order may be made by Seller and separately
     invoiced.

1.19  TITLE AND RISK OF LOSS

     Title (except as provided in the clause USE OF INFORMATION and in Article
III) and risk of loss to a Product, Licensed Material, or other item furnished
to Customer under this Agreement shall pass to Customer upon the delivery to the
Customer's specified location. Delivery of an item to its final destination by
Seller shall be deemed complete at such time as all transportation, interim
warehousing, hauling and hoisting required to be performed by Seller or its
agents under the order for the item have been completed Notwithstanding the
above, if sooner, title and risk of loss to the item shall pass to Customer at
the point at which, at Customer's request, Seller or Seller's supplier or agent
turns over possession of the item to Customer, Customer's employee, Customer's
designated carrier, warehouser or hoister, or other Customer's agent.
<PAGE>

     If Customer requests deferral of a base station order after submission of
the final purchase order required in Section 1.6, Seller shall have the right to
deliver the Product to its warehouse. Seller shall pay for the cost of
transportation to the warehouse and any warehouse costs. Customer shall pay the
costs of transportation from the warehouse to its specified location. If
Customer is unable to have the Products delivered to its location within thirty
(30) days after delivery to the warehouse, title and risk of loss shall pass to
Customer on the thirty-first day and Seller shall issue an invoice pursuant to
the terms of Section 1.12.

     If Customer requests deferral of a switch order less than three (3) weeks
prior to the scheduled shipment date set forth in the final purchase order
required in Section 1.6, Seller shall have the right to deliver the Product to
its warehouse. Seller shall pay for the cost of transportation to the warehouse
and any warehouse costs. Customer shall pay the costs of transportation from the
warehouse to its specified location. If Customer is unable to have the Products
delivered to its location within thirty (30) days after delivery to the
warehouse, title and risk of loss shall pass to Customer on the thirty-first day
and Seller shall issue an invoice pursuant to the terms of Section 1.12.

     Customer shall notify Seller and Seller shall notify Customer promptly of
any claim with respect to loss which occurs while the other party has the risk
of loss and shall cooperate in every reasonable way to facilitate the settlement
of any claim.

     Nothing herein shall, during the period Seller has the risk of loss to an
item, relieve Customer of responsibility for loss to the item resulting from the
acts or omissions of Customer, Customer's employees or Customer's agents.
Nothing herein shall, during the period Customer has the risk of loss to an
item, relieve Seller of responsibility for loss to the item resulting from the
acts or omissions of Seller, Seller's employees or Seller's agents.

1.20  COMPLIANCE WITH LAWS

     Performance under this Agreement shall be subject to all applicable laws,
orders, and regulations of federal, state, and local governmental entities. Both
parties shall obtain all necessary governmental approvals to perform their
respective obligations hereunder.
<PAGE>

1.21  TAXES

     Customer shall be liable for and shall reimburse Seller for all taxes and
related charges, however designated, (excluding taxes on Seller's net income or
gross receipts) imposed upon or arising from the provision of Services, or the
transfer, sale, license, or use of Products, Licensed Materials, or other items
provided by Seller. Taxes reimbursable under this paragraph shall be separately
listed on the invoice.

     Seller shall not collect the otherwise applicable tax if the front of the
order indicates that the purchase is exempt from Seller's collection of such tax
and a valid tax exemption certificate is furnished by Customer to Seller.

1.22  TRAINING

     Seller will make available Seller's standard training for Customer's
personnel in the planning for, operation and maintenance of Products and
Software furnished hereunder in accordance with Seller's published prices at
Seller's training locations. Additionally, Seller shall provide to Customer a
credit of two hundred thousand dollars ($200,000). Vendor warrants that this
credit is sufficient to provide training for Customer to support its operations
in the initial Markets listed in Section 1.4.

1.23  TERMINATION FOR CONVENIENCE

     Customer may, upon written notice to Seller, terminate any order or portion
thereof, except with respect to any order for Products or Licensed Materials
that have already been shipped and Services that have already been performed.

     For those Products and Licensed Materials not shipped but considered stock
items, Customer agrees that it will pay Seller an order restocking fee equal to
five percent (5%) of the price or license fee for such items.

     For those Products and Licensed Materials not shipped and considered
customized or non-stock items, Customer agrees to pay a fee based upon Seller's
reasonably incurred expenses (after adjustment for recoveries and/or salvage
value, if any), including associated general and administrative expenses plus a
reasonable profit.

     Customer may issue "holds" on orders or suspend performance under this
Agreement, in whole or in part, with Seller's prior
<PAGE>

written consent and upon terms that will compensate Seller for any loss,
damages, or expenses.

1.24 CANCELLATION FOR BREACH

     In the event Seller or Customer is in material breach or default of this
Agreement or any order placed hereunder and such breach or default continues for
a period of sixty (60) days after the receipt of written notice (and such
additional time as may be agreed upon by the parties), then Seller or Customer
shall have the right to cancel that part of any order affected by the breach or
default without any charge, obligation or liability, except for those items
already fully discharged. Both parties shall cooperate in every reasonable way
to facilitate the remedy of a breach or default hereunder within such sixty (60)
day period and such sixty (60) day period shall be extended for an additional
period of up to sixty (60) days if the breach or default could not reasonably
have been cured in the first sixty (60) days and the breaching party is
diligently pursuing such breach or default.

1.25 PATENTS, TRADEMARKS AND COPYRIGHTS

     In the event of any claim, action, proceeding or suit by a third party
against Customer or its Affiliates alleging an infringement of any United States
patent, United States copyright, or United States trademark, or a violation in
the United States of any trade secret, intellectual property right or
proprietary rights by reason of the use, in accordance with Seller's or other
applicable specifications, of any Product or Licensed Material or Indicia
furnished by Seller to Customer or its Operating Affiliates under this
Agreement, Seller, at its expense, will indemnify, hold harmless and defend
Customer, subject to the conditions and exceptions stated below. Seller will
reimburse Customer for any cost, expense or attorney's fee, incurred at Seller's
written request or authorization, and will indemnify Customer against any
liability assessed against Customer by final judgment on account of such
infringement or violation arising out of such use.

     If Customer's use shall be enjoined or in Seller's opinion is likely to be
enjoined, Seller will, at its expense and at its option without causing a
Material Service Impact to Customer or its Operating Affiliates, either (1)
replace the enjoined Product or Licensed Material furnished pursuant to this
Agreement with a suitable substitute (which is equivalent in Form, Fit and
Function) free of any infringement, (2) modify it so that it will be free of the
infringement, so long as such
<PAGE>

modification does not affect Form, Fit or Function; or (3) procure for Customer
a license or other right to use it. If none of the foregoing options is
practical, Seller will remove the enjoined Product or Licensed Material and
refund to Customer any amounts paid to Seller less a reasonable charge for any
actual period of use by Customer, provided, however, if such removal will cause
a Material Service Impact, Customer's consent shall be required prior to any
such removal.

     Customer shall give Seller prompt written notice of all such claims,
actions, proceedings or suits alleging infringement or violation and Seller
shall have full and complete authority to assume the sole defense thereof,
including appeals, and to settle same. Customer shall, upon Seller's reasonable
request and at Seller's expense, furnish all information and assistance
available to Customer and cooperate in every reasonable way to facilitate the
defense and/or settlement of any such claim, action, proceeding or suit.

     No undertaking of Seller under this clause shall extend to any such alleged
infringement or violation to the extent that it: (1) arises from adherence to
design modifications, specifications, drawings, or written instructions which
Seller is directed by Customer to follow, but only if such alleged infringement
or violation does not reside in corresponding commercial Product or Licensed
Material of Seller's design or selection; or (2) arises from adherence to
instructions to apply Customer's trademark, trade name, or other company
identification; or (3) resides in a Product or Licensed Material which is not of
Seller's origin and which is furnished by Customer to Seller for use under this
Agreement; or (4) relates to uses of Products or Licensed Materials provided by
Seller in combinations with other Products or Licensed Materials, furnished by
others, which combination was not installed, recommended or otherwise approved
by Seller. In the foregoing cases numbered (1) through (4), Customer will defend
and save Seller harmless, subject to the same terms and conditions and
exceptions stated above with respect to the Seller's rights and obligations
under this clause.

     The liability of Seller and Customer with respect to any and all claims,
actions, proceedings, or suits by third parties alleging infringement of
patents, trademarks, or copyrights or violation of trade secrets, intellectual
property rights or proprietary rights because of, or in connection with, any
items furnished pursuant to this Agreement shall be limited to the specific
undertakings contained in this clause.
<PAGE>

1.26 USE OF INFORMATION

     All Information in whatever form recorded which is furnished hereunder or
has been furnished in contemplation hereof, shall remain the property of the
furnishing party. The furnishing party grants the receiving party the right to
use such Information only as follows. Such Information (1) shall not be
reproduced or copied, in whole or part, except for use as authorized in this
Agreement; and (2) shall, together with any full or partial copies thereof, be
returned or destroyed when no longer needed. Moreover, when Seller is the
receiving party, Seller shall use such Information only for the purpose of
performing under this Agreement, and when Customer is the receiving party,
Customer shall use such Information only (1) to order, (2) to evaluate Products,
Licensed Materials or Services, or (3) to install, operate, and maintain the
particular Products or Licensed Materials for which it was originally furnished.
Unless the furnishing party consents in writing, such Information, except for
that part, if any, which is known to the receiving party free of any
confidential obligation, or which becomes generally known to the public through
acts not attributable to the receiving party, shall be held in confidence by the
receiving party. The receiving party may disclose such Information to other
persons, upon the furnishing party's prior written authorization, but solely to
perform acts which this clause expressly authorizes the receiving party to
perform itself and further provided such other person agrees in writing (a copy
of which writing will be provided to the furnishing party at its request) to the
same conditions respecting use of Information contained in this clause and to
any other reasonable conditions requested by the furnishing party.

     The term "Information" as used in this clause does not include Software
(whether or not embodied in Firmware) or Related Documentation. The use of
Software and Related Documentation is governed by Article III of this Agreement.

     Nothing in this Section shall preclude or prohibit a receiving party from
disclosing any Information, if such disclosure is required by law, rule or
regulation or ordered by a court or governmental agency of competent
jurisdiction, provided that such party notifies the furnishing party prior to
such disclosure and provides the furnishing party such assistance as is
reasonable in the circumstances to protect the Information from public
disclosure.

     For purposes of this provision, "Information" shall mean all information
about business, technical and financial matters
<PAGE>

(including costs, profits and plans for future development, methods of operation
and marketing concepts) and any other proprietary information relating to
Seller, Customer or its Affiliates and their respective operations, businesses
and technical and financial affairs; provided, however, the Information shall
not include information that (a) becomes generally available to the public other
than as a result of disclosure by the recipient, its Affiliates or their
representatives, (b) was available to recipient or its Affiliates on a
nonconfidential basis prior to disclosure hereunder, (c) is independently
developed by recipient or its Affiliates without use of the Information, or (d)
becomes rightfully available to recipient from a third party that is under no
obligation to maintain such information as confidential. To facilitate a
recipient's proper handling of Information, the disclosing party shall use all
reasonable efforts to mark as proprietary (or with another reference to indicate
confidentiality) all documentary information and to so identify prior to
disclosure all orally delivered information which the disclosing party desires
to be protected under this provision.

1.27 NOTICES

     All notices under this Agreement shall be in writing (except where
otherwise stated) and shall be addressed to the addresses set forth below or to
such other address as either party may designate by notice pursuant hereto. Such
notices shall be deemed to have been given (a) when received if delivered by
hand or facsimile, (b) three business days after mailing if sent by certified
mail, return receipt requested, and (c) one day after delivery to a nationally
recognized overnight delivery service if sent by overnight mail.

               Seller:  Lucent Technologies Inc.
                        Suite 980, 485 LBJ Freeway
                        Dallas, TX 75244
                        Attn. Doris Jean Head
                        Phone: (972) 858-4910
                        Fax: (972) 858-4945

                    Copy To:  Marc N. Epstein
                              Corporate Counsel
                              283 King George Road
                              Warren, NJ 07059
                    Phone:  (908) 559-3377
                              Fax: (908) 559-2174
<PAGE>

                    Customer: TeleCorp PCS, Inc.
                              Attn: Thomas Sullivan
                              Executive Vice President
                              1101 17th Street, N.W.
                              Suite 900
                              Washington, DC 20036
                              Phone: (202) 721-0230
                              Fax: (202) 833-4882

                    Copy to:  Rubin, Baum, Levin, Constant & Friedman
                              Attn: Barry A. Adelman, Esq.
                              30 Rockefeller Plaza
                              New York, NY 10112
                              Phone: (212) 698-7700
                              Fax: (212) 698-7825

1.28 RIGHT OF ACCESS

     Each party shall provide the other access to its facilities reasonably
required in connection with the performance of the respective obligations under
this Agreement. No charge shall be made for such access. Reasonable prior
notification will be given when access is required. Neither party shall require
releases of any personal rights in connection with visits to its premises.

1.29 INDEPENDENT CONTRACTOR

     All work performed by one party under this Agreement shall be performed as
an independent contractor and not as an agent of the other and no persons
furnished by the performing party shall be considered the employees or agents of
the other. The performing party shall be responsible for its employees'
compliance with all laws, rules, and regulations while performing work under
this Agreement.

1.30 CUSTOMER'S REMEDIES

          a)   Customer's exclusive remedies and the entire liability of Seller
               and its affiliates and their employees and agents for any claim,
               loss, damage, or expense of Customer or any other entity arising
               out of this Agreement, or the use or performance of any Product,
               Licensed Material, or Service, whether in an action for or
               arising out of breach of contract, tort, including negligence
               indemnity, or strict liability shall be as follows:
<PAGE>

               (1)  For infringement-the remedy set forth in the "PATENTS,
                    TRADEMARKS, AND COPYRIGHTS" clause;

               (2)  For the performance of Products, Software and Services, or
                    claims that they do not conform to a warranty-the remedy set
                    forth in the applicable "WARRANTY" clause;

               (3)  For "Class A and B Changes" - the obligations set forth in
                    Section 2.10.

               (4)  For tangible property damage and personal injury caused by
                    negligence or willful misconduct of Seller, its employees,
                    subcontractors or agents-the amount of direct damage;

               (5)  For delays in System Acceptance-the remedy set forth in the
                    "Completion Delay" clause;

               (6)  For everything other than as set forth above--the amount of
                    direct damages not to exceed $2,000,000 per occurrence plus
                    awarded counsel fees and costs.

          b)   NOTWITHSTANDING ANY OTHER PROVISION OF THIS AGREEMENT, NEITHER
               CUSTOMER NOR SELLER NOR THEIR AFFILIATES AND THEIR EMPLOYEES AND
               AGENTS SHALL BE LIABLE FOR INCIDENTAL, INDIRECT, OR CONSEQUENTIAL
               DAMAGE OR LOST PROFITS, REVENUES OR SAVINGS ARISING OUT OF THIS
               AGREEMENT, OR THE USE OR PERFORMANCE OF ANY PRODUCT, LICENSED
               MATERIALS OR SERVICES, WHETHER IN AN ACTION FOR OR ARISING OUT OF
               BREACH OF CONTRACT, TORT, INCLUDING NEGLIGENCE, OR STRICT
               LIABILITY. THIS CLAUSE 1.30(b) SHALL SURVIVE FAILURE OF AN
               EXCLUSIVE OR LIMITED REMEDY, PROVIDED THAT THIS CLAUSE SHALL NOT
               BE DEEMED TO LIMIT CUSTOMER'S RIGHTS UNDER SECTION 1.25,
               "PATENTS, TRADEMARKS AND COPYRIGHTS".

          c)   Customer shall give Seller prompt notice of any claim and Seller
               shall give Customer prompt notice of any claim. Any action or
               proceeding against Seller or Customer must be brought within
<PAGE>

               twenty-four (24) months after the cause of action accrues.

1.31 FORCE MAJEURE

     Except with respect to Customer's obligation to make timely payments under
this Agreement, neither party shall be held responsible for any delay or failure
in performance to the extent that such delay or failure is caused by a Force
Majeure. Nothing contained herein or elsewhere shall impose any obligation on
either party to settle any labor difficulty. If the Force Majeure event prevents
performance for a period of thirty (30) days, then the party adversely effected
by the nonperformance may terminate this Agreement without recourse or
obligation, except for any benefit already received hereunder.

1.32 ASSIGNMENT

     Except as provided in this clause, neither party shall assign this
Agreement or any right or interest under this Agreement, nor delegate any work
or obligation to be performed under this Agreement, (an "assignment") without
the other party's prior written consent. Any attempted assignment in
contravention of this shall be void and ineffective. Nothing shall preclude a
party from employing a mutually acceptable subcontractor, whose acceptance shall
not be unreasonably withheld by any party, in carrying out its obligations under
this Agreement. A party's use of such subcontractor shall not release the party
from its obligations under this Agreement.

     Notwithstanding the foregoing, Seller has the right to assign this
Agreement and to assign its rights and delegate its duties under this Agreement,
in whole or in part, at any time and without Customer's consent, to any present
or future Subsidiary or Affiliate of Seller or to any combination of the
foregoing. Such assignment or delegation shall not release Seller from any
further obligation or liability thereon. Seller shall give Customer prompt
written notice of the assignment. Customer has the right to assign this
Agreement and to assign its rights and delegate its duties under this Agreement,
in whole or in part, at any time and without Seller's consent, to its parent or
to any present or future Subsidiary or Affiliate of Customer or its parent
providing tariffed services, provided that Seller may require changes to the
methods of payment and/or refuse to extend credit in the same amount or manner
as to Customer's assignor. Customer shall give Seller advance written notice of
the assignment promptly upon anticipation of such assignment.
<PAGE>

     In addition, Customer shall have the right to assign this Agreement, in
whole or in part, other than the provisions relating to financing and deferred
payment, to an entity to whom it sells a System to be operated by such assignee
entity in place, provided that such assignee entity is not a competitor of
Seller and has the financial resources to meet Customer's obligations under this
Agreement.

     For purposes of this clause, the term "Agreement" includes this Agreement,
any subordinate contract placed under this Agreement and any order placed under
such Agreement or subordinate contract.

1.33 PUBLICITY

     Each party shall submit to the other proposed copy of all Advertising
wherein the name, trademark, code, specification or service mark of the other
party or its affiliates is mentioned; and neither party shall publish or use
such Advertising without the other's prior written approval. Such approval shall
be granted as promptly as possible (usually within ten (10) days), and may be
withheld only for good cause.

1.34 APPLICABLE LAW

     The construction and interpretation of, and the rights and obligations of
the parties pursuant to this Agreement, shall be governed by the laws of the
State of New York, except for its rules on conflicts of law.

1.35 SURVIVAL OF OBLIGATIONS

     The parties' rights and obligations which, by their nature, would continue
beyond the termination, cancellation, or expiration of this Agreement, shall
survive such termination. cancellation, or expiration, including, for example,
the provisions of Sections 1.10.1.1.2, 1.26, 1.30, 2.10, 2.11 and 3.8 and the
rights of Customer to the price protections set forth in Attachment A which
extend beyond the five (5) year term of this Agreement.

1.36 SEVERABILITY

     If any provision in this Agreement shall be held to be invalid or
unenforceable, the remaining portions shall remain in effect. In the event such
invalid or unenforceable provision is considered an essential element of this
Agreement, the parties shall promptly negotiate a replacement provision.
<PAGE>

1.37 NON-WAIVER

     No waiver of the terms and conditions of this Agreement, or the failure of
either party strictly to enforce any such term or condition on one or more
occasions shall be construed as a waiver of the same or of any other term or
condition of this Agreement on any other occasion.

1.38 CUSTOMER RESPONSIBILITY

     Customer shall, at no charge to Seller, provide Seller with such electrical
and environmental conditions, technical information, data, technical support, or
assistance in Customer's possession as may reasonably be required by Seller to
fulfill its obligations under this Agreement, any subordinate agreement, or
order. If Customer fails to provide the required conditions, information, data,
support, or assistance, Seller shall be discharged from any such obligation.

1.39 PUBLICATION OF AGREEMENT

     The parties shall keep the provisions of this Agreement and any order
submitted hereunder confidential except as reasonably necessary for performance
hereunder and except to the extent disclosure may be required by applicable
laws, regulations or the Financing Arrangements set forth on Attachment B or to
other prospective lenders or investors of Customer, in which latter case, the
party required to make such disclosure shall promptly inform the other prior to
such disclosure in sufficient time to enable such other party to make known any
objections it may have to such disclosure. The disclosing party shall take all
reasonable steps to secure a protective order or otherwise assure that the
Agreement or order will be withheld from the public record.

1.40 ARBITRATION

     If a dispute arises out of or relates to this Agreement, or its breach, the
parties agree to escalate such dispute to their respective senior executives for
good faith negotiations seeking a mutually agreeable resolution. This demand for
escalation shall be in writing and notice shall be served in accordance with the
notice provision of this Agreement. If the dispute is not resolved through such
escalation within fifteen (15) days after the date of escalation, either party
shall have the right to submit the dispute to a sole mediator selected by the
parties which shall be a nonbinding mediation. If not thus resolved, it shall be
referred to a sole arbitrator, experienced in wireless
<PAGE>

infrastructure and transactions, selected by the parties within thirty (30) days
of the mediation or, in the absence of such selection, by the American
Arbitration Association, and judgment on the award may be entered in any court
having jurisdiction. The decision of the arbitrator shall be final and binding
on both parties. The arbitrator may determine issues of arbitrability, but may
not award punitive damages or limit, expand or otherwise modify the terms of
this Agreement. All post award proceedings shall be governed by the United
States Arbitration Act. Each party shall bear the cost of preparing and
presenting its case. The cost of the arbitration, including the fees and
expenses of the arbitrator, will be shared equally by the parties unless the
award otherwise provides. The parties, their representatives, other participants
and the mediator and arbitrator shall hold the existence, content and result of
mediation and arbitration in confidence, except as such disclosure may be
necessary for the purpose of recording or otherwise acting upon the arbitrator's
award.

                                2.  ARTICLE II
               PROVISIONS APPLICABLE TO THE PURCHASE OF PRODUCTS

2.1  GENERAL

     The provisions of this Article II shall be applicable to the purchase of
Products from Seller. If Software is also to be licensed for use on a purchased
Product, or if a Product is also to be engineered or installed by Seller, the
provisions of Articles III and IV shall also be applicable.

2.2  PRODUCT FEATURES COMMITMENT

     2.2.1    Duplexing Upgrades

          a)  On or before June 30, 1998, Seller shall make available to
              Customer duplexing upgrades to base stations. The duplexers shall
              meet the specifications set forth in Attachment G. Thereafter,
              Seller shall be responsible, at its expense, for delivery and
              installation of duplexers at all sites constructed prior to their
              general availability.

          b)  If Seller fails to make available a specification compliant
              duplexer on or before July 30, 1998, Customer shall have the
              option of deploying a Simplex Network in all those Markets awarded
              to
<PAGE>

               Seller and which Customer has elected to construct. Seller shall
               be responsible for the reasonable and actual costs incurred by
               customer in retrofitting sites and changing equipment, together
               with all incremental recurring costs directly caused by the
               deployment of the Simplex Networks. In analyzing whether or not
               to exercise this option, Customer shall take into account all
               relevant factors including, but not limited to, changes in Market
               launch dates, the number of cell sites deployed as of July 30,
               1998, and Seller's development schedule.

     2.2.2     Filter Solution

          a)   For an interim solution in the New Orleans, Little Rock and
               Memphis Markets, (or any other Market with the same technical
               constraints;), and at no additional costs to Customer, Seller
               shall provide 60MHz wide transmit and receive filters, provide up
               to fifteen (15) Type III stations per Market at the price of Type
               I base stations and, in New Orleans only, deliver and install an
               additional EDRU for each EDRU installed (up to a maximum of 660
               EDRUs). For every cell site in New Orleans the interim solution
               shall be deployed on or before August 30, 1998.

          b)   By September 30, 1999, Seller will deliver and install in the New
               Orleans Market only a complete 60MHz filter product which meets
               the specifications set forth on Attachment G. If Seller fails to
               provide a specification compliant 60MHz filter on or before the
               end of September 30, 1999, Seller shall be responsible for the
               cost of any additional equipment required to meet Customer's
               functionality and license buildout requirements.

     2.2.3     Rural Service

     Seller agrees to provide reasonable research and development efforts to
explore a solution for the economic provision of PCS Services in Customer's more
rural service areas. These efforts shall include "first office application"
status, "preferred test bed" status as well as preferred involvement in any
other testing or study of the use of PCS spectrum or development of applications
utilizing PCS spectrum
<PAGE>

provided that Customer's network topology is consistent with Seller's
requirements for the "first office application", "preferred test bed" or other
tests or studies.

     2.2.4     TDMA PCS Microcell

     Seller will provide a TDMA PCS Microcell on or before July 30, 1999 for
inbuilding applications. It is anticipated that there will be fewer than ten
(10) applications per market in 1999. If Seller fails to meet this commitment,
it will provide TDMA PCS Minicell equipment on an equivalent per radio price
basis.

     2.2.5     Other Customer Needs

     Seller agrees to support Customer's other customer needs including WCS and
LMDS as well as Customer CLEC requirements. This support shall include "first
office applications", "preferred test bed" status, as well as preferred
involvement in any other testing or study of the use of WCS and LMDS spectrum or
development of applications utilizing WCS and LMDS spectrum provided that
Customer's network topology is consistent with Seller's requirements for the
"first office application", "preferred test bed" or other tests or studies.

2.3  PRODUCT AVAILABILITY

     Seller shall notify Customer, usually at least six (6) months, before
Seller discontinues accepting orders for a Seller's Manufactured Product sold
under this Agreement. Where Seller offers a functionally equivalent Product for
sale, the notification period may vary.

2.4  DOCUMENTATION

     Seller shall furnish to Customer, at no additional charge, two copies of
documentation (one CD Rom and one printed) for the Products provided hereunder
sufficient to operate and maintain such Products. Such documentation will be
that customarily provided by Seller to its Customers at no additional charge.
Such documentation shall be provided prior to, with, or shortly after the
shipment of the Products from Seller to Customer. Additional copies of the
documentation are available at prices set forth in the Customer Price List.

2.5  PRODUCT COMPLIANCES
<PAGE>

     Seller represents that a Product furnished hereunder shall comply, to the
extent required, with the requirements of Part 24 of the Federal Communication
Commission's Rules and Regulations pertaining to personal communications
services in effect upon delivery of such Product. In addition, Seller represents
that a Product furnished hereunder shall comply, to the extent required, with
the requirements of Subpart J of Part 15 of the Federal Communication
Commission's Rules and Regulations in effect upon delivery of such Product,
including those sections concerning the labeling of such Product and the
suppression of radio frequency and electromagnetic radiation to specified
levels. Seller makes no undertaking with respect to harmful interference caused
by (i) installation, repair, modification or change of Products or Software by
other than Seller, its employees, subcontractors or agents; (ii) Products being
subjected to misuse, neglect, accident or abuse by other than Seller, its
employees, subcontractors or agents; or (iii) Products or Software being used in
a manner not In accordance with operating instructions or in a suitable
installation environment or operations of other equipment in the frequency range
reserved for Customer within the licensed Area.

     Seller assumes no responsibility under this clause for items not specified
or supplied by Seller. Type acceptance or certification of such items shall be
the sole responsibility of Customer.

2.6  PRODUCT CHANGES

     Prior to the shipment of a Product, Seller may at any time make changes in
a Product furnished pursuant to this Agreement, or modify the drawings and
published specifications relating thereto, or substitute Products of later
design to fill an order, provided the changes, modifications, or substitutions
under normal and proper use do not impact upon the Form, Fit, or Function of an
ordered Product as identified in Seller's specifications.

     Seller shall notify Customer, usually at least one (1) year, before Seller
discontinues accepting orders for an item of Seller's Manufactured Product sold
u this Agreement. Where Seller offers a product for sale that is equivalent in
Form, Fit, and Function, the notification period may vary.

     Seller further agrees that, in issuing Licensed Material Updates and
Licensed Material Generic Releases of Network Wireless System Licensed
Materials, Seller shall assure that any changes and modifications to existing
features and
<PAGE>

functionalities effected thereby shall not result in a Material Service Impact.

     Seller agrees to maintain a standard, supported, generic version of the
Licensed Materials necessary for or integral to operation of Products furnished
by Seller pursuant to this Agreement for a period of not less than seven (7)
years from the effective date of this Agreement. If Seller ceases to maintain a
standard, supported, generic version of any such Licensed Materials furnished by
Seller pursuant to this Agreement, and such maintenance is not available from
another entity, then Seller shall furnish Customer, under a suitable
confidentiality agreement, to the extent that it is authorized to do so, the
then existing Licensed Materials Source Code, Licensed Materials development
programs, and associated documentation for such standard version to the extent
necessary for Customer to maintain and enhance for its own Use the standard
version of that Licensed Material for which it has the right to Use.

     Seller agrees that it shall use all reasonable efforts to qualify as
Seller's Manufactured Product any Vendor Items orderable under this Agreement,
the unavailability of which would result in a Material Service Impact. If such
efforts are successful, such item shall thereafter be treated as Seller
Manufactured Product for purposes of Section 2.7 "CONTINUING PRODUCT/SUPPORT-
PARTS AND SERVICES." If such item cannot be so qualified, Seller agrees that it
will use all reasonable efforts to establish or locate a secondary source for
such item, to identify an item of equivalent Form, Fit, and Function, or to take
other steps, so as to minimize the circumstances in which Seller shall not be
able to provide the notice of discontinuance and the continuing supply of Repair
Parts and repair Services as contemplated by Section 2.7 "CONTINUING
PRODUCT/SUPPORT-PARTS AND SERVICES."

2.7  CONTINUING PRODUCT SUPPORT- PARTS AND SERVICES

     In addition to repairs provided for under Product Warranty, Seller offers
repair Services and Repair Parts in accordance with Seller's repair and Repair
Parts practices and term and conditions then in effect, for Seller's Products
furnished pursuant to this Agreement. Such repair Services and Repair Parts
shall be available while Seller is manufacturing or stocking such Products or
Repair Parts, but in no event less than five (5) years after such Product's
discontinued availability effective date. Seller may use either new,
remanufactured, reconditioned, refurbished, or functionally
<PAGE>

equivalent Products or parts in the furnishing of repairs or replacements under
this Agreement.

     If during the agreed to support period Seller is unable to provide Repair
Part(s) and/or repair Service(s) and a functionally equivalent replacement has
not been designated, Seller shall advise Customer, by written notice prior to
such discontinuance to allow Customer to plan appropriately, and if Seller is
unable to identify another source of supply for such Repair Part(s) and/or
repair Service(s), Seller shall provide Customer, upon request, with non-
exclusive licenses for Product Manufacturing Information to the extent Seller
can grant such licenses, so that Customer will have sufficient information to
have manufactured, or obtain such Service or parts from other sources. License
terms will be in accordance with Seller's licensing procedures then in effect.

2.8  SPECIFICATIONS

     Upon request, Seller shall provide to Customer, at no charge, two (2)
copies of Seller's available commercial specifications applicable to Products
orderable hereunder. Additional copies are available at the applicable price
therefor.

2.9  CUSTOMER TECHNICAL SUPPORT

     Seller provides Customer Technical Support for the PCS through the Customer
Technical Support Organization (CTSO). The CTSO provides diagnostic center
support, performance measurement and system engineering services at its then
standard prices, term and conditions for such services. Special, unusual or
customized services may be billable, depending upon the nature of the request.

     Seller shall provide Customer access to emergency technical diagnostic
assistance Service, twenty-four (24) hours a day, 365/366 days per year. Such
Service is currently provided at no charge to Seller's customers. Seller agrees
that during the term of this Agreement it shall not commence to charge Customer
for such Service unless and until it commences generally to charge its other
customers in comparable circumstances for such Services. In all cases, however,
such Service shall be free of charge to Customer if it relates to service
affecting warranty defects.

2.9A CLASS A AND B CHANGES
<PAGE>

     Class A and B Changes - After a Product has been shipped to Customer, if
Seller issues a Class A or Class B Change, or where modification to correct an
error in field documentation is to be introduced, Seller shall promptly notify
Customer of such change.

     Customer may notify Seller of any problems which it considers to require
Class A Change. Seller shall then make a determination as to whether such
problem requires a Class A Change. However, if Customer disagrees with Seller's
determination, then, Customer may submit such disagreement to arbitration in
accordance with Section 1.40.

     With respect to a Product which is subject to a Class A Change, Seller will
implement such change, at its expense, if such change is announced (or Customer
notifies Seller that such change is required) within seven (7) years from the
date of shipment of the applicable Product, by, at Seller's option, either (1)
modifying the Product at Customer's site; (2) modifying the Product which
Customer has returned to Seller in accordance with Seller's instructions; or (3)
replacing the Product requiring the change with replacement Product for which
such change has already been implemented.

     If Seller did not engineer the original Product and, accordingly, office
records are not available to Seller, and/or Seller did not install the original
Product, Seller will, at its expense, provide the generic Class A Change
information and associated parts for Customer's use in applying such change, if
it is announced within seven (7) years from the date of shipment of that
Product. Notwithstanding the above, in the event that the first attempt to
implement such change cannot reasonably be expected to be successful without the
on-site assistance of Seller, Seller also shall, at no expense to Customer,
furnish reasonable amounts of on-site assistance to effect the first such
change.

     If Seller determines that the applicable Product or part thereof is readily
returnable, Customer, at its expense, shall remove such Product or part and
return it to Seller's designated location and Seller, at its expense, shall
implement such change (or replace it with Product or part for which such change
has already been implemented) and return such changed (or replacement) Product
or part to Customer's designated location within the Territory. Reinstallation
shall be performed by Customer, at its expense.
<PAGE>

     In unusual situations where Customer's spares or plug-in stocks are not
available to implement a rotational program for a Class A Change, Seller will
provide a seed stock.

     In administering the Class A Change procedure provided for herein, Seller
shall use all reasonable efforts to assure that implementation of a Class A
Change will not result in the System being out of service or otherwise result in
a Material Service Impact. If, in spite of such efforts, such an impact would
occur during implementation of the change, Seller shall work with Customer and
Seller shall use its best efforts to establish procedures to ensure that such
impact will be minimized and limited to off peak hours.

     If Customer does not make or permit Seller to make a Class A Change as
stated above within one (1) year from the date of change notification or two (2)
years in the case of Customer Change Notices (CCNs), subsequent changes, repairs
or replacements affected by the failure to make such change may, at Seller's
option, be billed to Customer whether or not such subsequent change, repair or
replacement is covered under warranty.

     If requested, Class A Changes announced more than seven (7) years from date
of shipment will be implemented at Customer's expense.

     If Seller issues a Class B Change after a Product has been shipped to
Customer, Seller shall promptly notify Customer of such Class B Change. If such
Class B Change is being generally offered to Seller's customers then Seller
shall perform such Class B Change for Customer at no cost to Customer. With
respect to Class B Changes not being generally offered to Seller's customers,
Customer may request Seller's performance of such Class B Change; provided,
however, that Seller may charge Customer its then-standard rates for such Class
B Change.

     All change notifications for Class A Changes and Class B Changes shall
contain the following information: (1) a description of the change; (2)
reason(s) for the change; (3) the price impact such change will have, if known,
(4) the effective date of the change; (5) the procedure for implementing the
change, and (6) the implementation schedule for the change.

     In administering the Class A Change procedure provided for in this Section
2.10, and where the items necessary to effect a change are in limited
availability, Seller agrees to allocate reasonably such items among its
customers in a way that does not
<PAGE>

discriminate against Customer on account of any lesser volume of business they
may give to Seller than other customers may give to Seller.

     Epidemic Failures - In the event that Customer experiences failures of a
Product, which Customer's Chief Technical Officer (the "Customer CTO") believes
in good faith to be excessive, the Customer CTO may bring such failures to the
attention of Seller by giving written notice to Seller and Seller shall give
highest priority to the remedy of the cause of such failures. If such failures
are as a result of defects or nonconformitites which would be covered by the
applicable warranty provisions of this Agreement, they shall be dealt with under
this Section 2.10 as a matter requiring a Class A Change.

     If such failures have occurred in a circuit board, radio base station
subassembly or other Product that is intended for deinstallation and
reinstallation by Customer in the ordinary course of business, and such failures
have materially depleted Customer's spares complement of such board, subassembly
or Product, Seller shall, without charge to Customer, supply to Customer such
additional units of the affected board, subassembly, or Product as are necessary
to maintain an adequate emergency replacement stock, until implementation of a
permanent remedy. Upon implementation of the permanent remedy, such additional
boards, subassemblies or Products shall, at Customer's expense, be returned to
Seller in the same condition as originally supplied by Seller, reasonable wear
and tear accepted.

     Where excessive failure occurs in a Product the unavailability of which
would result in a Material Service Impact, Seller agrees to use, at no
additional cost to Customer, expedited freight handling when forwarding fixes,
replacements or additional Products.

     Disputes - The parties acknowledge that because the classification of
charges will determine whether charges to Products must be performed at Seller's
expense, the parties may dispute the classification given to an identified
problem, including alleged problems of excessive failures identified by the
Customer CTO. If the Customer CTO in good faith contends that such failures are
resulting or shall result in a Material Service Impact or, if not remedied, are
likely to result in such an impact, Seller shall, upon written request of the
Customer CTO, undertake to remedy the identified problem hereunder. If it is
ultimately determined that the problem should not be classified as a problem
requiring Class A Change treatment,
<PAGE>

Seller shall be entitled to invoice Customer at Seller's then-standard charges
for the work to remedy such problem.

2.10 PRODUCT WARRANTY

          a)    Seller warrants to Customer only, that:

          (i)   Seller shall convey free and clear title to the Products to
Customer and, as of the date title to Products passes to Customer, Seller will
have the right to sell, transfer, and assign such Products and the title
conveyed by Seller shall be good;

          (ii)  Seller's Manufactured Products will be free from defects in
material and workmanship, will conform to and perform in accordance with
Seller's applicable Specification (Attachment D), will operate in accordance
with Attachment D when installed on or adjacent to electrical high voltage
transmission towers, and will, when used as designed, create no material adverse
health effects;

          (iii) With respect to Vendor Items, Seller, to the extent permitted,
does hereby assign to Customer the warranties given to Seller by its vendor of
such Vendor Items. Such assignment will be effective on the date of shipment of
such Vendor Items. With respect to Vendor Items recommended by Seller in its
Specifications for which the vendor's warranty cannot be assigned to Customer,
or if assigned, less than sixty (60) days remain of the vendor's warranty at the
time of assignment, Seller warrants for sixty (60) days from the date of
shipment or, if installed by Seller, on Acceptance by Customer or thirty (30)
days from the date Seller submits its notice of completion of its installation
whichever is sooner, that such Vendor's Items will be free from defects in
material and workmanship.

          b)  The Warranty Periods listed below are applicable to Seller's
              Manufactured Products furnished pursuant to this Agreement, and
              unless otherwise stated begin upon delivery to the destination
              specified in Customer's order or, if installed by Seller, on the
              first day of the next full calendar month following Acceptance by
              Customer or on the first day of the second full calendar month
              following the date Seller submits its notice of completion of its
              installation, whichever is sooner:
<PAGE>

<TABLE>
<CAPTION>
                                                                  Repaired or
Class of                                       New                Replacement
Product                                      Product*          Product or Part**
- -------                                      --------          -----------------
<S>                                          <C>              <C>
PCS Switching Center and                     24 Months             6 Months
Base Station Hardware

Transmission Systems
- -All Transmission Products in
the "2000 Product Family"                    60 Months             6 Months
- -D4 Circuit Packs                            60 Months             6 Months
- -SLC Circuit Packs                           60 Months             6 Months
- -SLC Series 5 Plug-ins                       60 Months             6 Months
- -T1 Repeaters                                60 Months             6 Months
- -DDM-1000 Circuit Packs                      60 Months             6 Months
- -Other Transmission Products                 24 Months             6 Months

Energy Systems                               12 Months             3 Months

All other Network Systems Products           12 Months             3 Months
</TABLE>

     *    Refer to the SOFTWARE WARRANTY CLAUSE for associated Software
warranties.

     **   The Warranty Period for a repaired Product or part thereof repaired
under or for a replacement Product or part thereof furnished in lieu of repair
under this Warranty is the period listed or the unexpired term of the new
Product Warranty Period, whichever is longer.

     Notwithstanding anything in this Agreement to the contrary, Customer's use
of any part of any system In Revenue Service (or to provide training or hands-on
experience to Customer's personnel) shall, if prior to Seller's notice of
installation completion, commence the applicable warranty period; provided;
however, this provision shall not apply to training provided by Seller nor to
the extent that Customer's personnel merely familiarize themselves with the
Initial Order without actual operation of the Products.

          c)   If, under normal and proper use during the applicable Warranty
               Period, a defect or nonconformity is identified in a Product
               furnished by Seller, and Customer notifies Seller in writing of
               such defect or nonconformity promptly after Customer discovers
               such defect or nonconformity and follows Seller's instructions
<PAGE>

               regarding the return of the defective or nonconforming Product,
               Seller shall take the following action:

               (i)  Seller, at its option, shall attempt first to repair or
                    replace such Product without charge at its facility or, if
                    not feasible, provide a refund or credit based on the
                    original purchase price, and installation charges if
                    installed by Seller, provided however, if such removal will
                    cause a Material Service Impact, Customer's consent shall be
                    required prior to any such removal.  Customer must return
                    the Product to Seller for repair and replacement, except as
                    noted below.

               (ii) Where Seller has elected to repair or replace a Product
                    which has been installed by Seller and Seller ascertains
                    that the Product is not readily returnable by Customer,
                    Seller will repair or replace the Product at Customer's
                    site.

          d)   If Seller has elected to repair or replace a defective Product,
               Customer is responsible for removing and reinstalling and, in
               addition, for on-site repair or replacement of cable and wire
               Products, Customer must make the Product accessible for repair or
               replacement, and is responsible to restore the site.

          e)   Products returned for repair or replacement will be accepted by
               Seller only in accordance with its instructions and procedures
               for such returns. The transportation expense associated with
               returning such Product to Seller shall be borne by Customer.
               Seller shall pay the cost of transportation of the repaired or
               replacing Product to the destination designated by Customer
               within the Territory.

          f)   Defective or nonconforming Products or parts which are replaced
               hereunder shall become Seller's property. Seller may use either
               new, remanufactured, reconditioned, refurbished, or functionally
               equivalent Products or parts in the
<PAGE>

               furnishing of repairs or replacements under this Agreement.

          g)   If Seller determines that a Product for which warranty Service is
               claimed is not defective or not nonconforming, Customer shall pay
               Seller's costs of handling, inspecting, testing, and transporting
               and, if applicable, traveling and related expenses.

          h)   Seller make no warranty with respect to defective conditions or
               nonconformities resulting from the following: Customer
               modifications (other than in accordance with Seller's
               instructions), misuse, neglect, accident or abuse; improper
               wiring, repairing, splicing, alteration, installation, storage or
               maintenance by other than Seller, its employees, subcontractors,
               representatives or agents; use in a manner not in accordance with
               Seller's or vendor's specifications, or operating instructions or
               failure of Customer to apply previously applicable Seller
               modifications and corrections. In addition, Seller makes no
               warranty with respect to Products which have had their serial
               numbers or months and year of manufacture removed, altered or
               with respect to expendable items, including, without limitation,
               fuses, light bulbs, motor brushes, and the like.

          i)   THE FOREGOING PRODUCT WARRANTIES ARE EXCLUSIVE AND ARE IN LIEU OF
               ALL OTHER EXPRESS AND IMPLIED WARRANTIES, INCLUDING BUT NOT
               LIMITED TO WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
               PARTICULAR PURPOSE. CUSTOMER'S SOLE AND EXCLUSIVE REMEDY SHALL BE
               SELLER'S OBLIGATION TO REPAIR, REPLACE, CREDIT OR REFUND AS SET
               FORTH ABOVE IN THIS WARRANTY.

     If Customer and Seller have a disagreement as to whether or not a problem
is a defect or non-conformity covered by this warranty, Seller agrees to correct
the problem and bill Customer for the corrective action under Section "Invoices
and Terms of Payment" of the Agreement.  Seller will segregate such bills.  Such
disputed warranty claims will be subject to resolution by the arbitration in
accordance with Section 1.40 of this Agreement, and if resolved in Customer's
favor, Seller agrees to credit Customer for the costs of corrective action
covered by warranty.
<PAGE>

     Seller agrees that if Customer acquired equipment, software, or licensed
materials (including, without limitation, radio frequency and network equipment,
but not including components internal to Products furnished under this
Agreement) from a source other than Seller, and if Customer installs such an
item in or interconnects such an item with any PCS System, Products or Licensed
Materials obtained under this Agreement, Seller agrees that Seller's warranties
hereunder shall not be voided or affected; provided, however, Seller's
warranties shall not apply to damage, defects, nonconformities, or degradation
in performance in Products and/or Licensed Materials purchased (or, with respect
to Licensed Materials, licensed) under this Agreement to the extent they are
caused by installation or interconnection of the item in violation of Seller's
instructions, which such instructions shall be based upon reasonable and
appropriate technical considerations, or caused by (but not simply revealed by)
such installed or interconnected items. Seller shall be entitled to bill
Customer Seller's Standard Charges for Seller's efforts to identify and/or
correct any such damage, defect, nonconformity, or degradation in performance so
caused, and to test and transport the corrected item. Nothing in this paragraph
shall itself be deemed to require Seller to publish interface information or
otherwise to facilitate such installation or interconnection of items not
obtained from Seller.

     If as a result of a defect or non-conformity covered by this warranty a
Material Service Impact is experienced, Seller shall at its sole cost and
expense repair or correct the problem or replace the defective Products or
Licensed Materials and ship any required replacement Products (or components
thereof) or replacement Licensed Materials to Customer as promptly as possible.
If such repair, replacement or installation or replacement Products or Licensed
Materials require the Services of Seller service personnel at Customer's sites,
Seller shall, at its sole cost and expense, dispatch such service personnel as
are required to correct such problem as promptly as possible upon being notified
thereof by Customer.

     The warranties provided for Licensed Materials are transferable to the
extent provided in Section 3.11 "LIMITED TRANSFERABILITY" of this Agreement.
The warranties on Products (including any warranties for the installation and
repair thereof) shall be transferable along with the Products with which they
are associated.  No charge shall be made by Seller to Customer in respect of any
such transfer of warranty; but, Seller shall have the right to charge the
transferee a nominal
<PAGE>

fee to compensate Seller for registering the transferee as entitled to the
transferred warranty and otherwise readying Seller to react to warranty claims
made by the transferee. Warranties provided in this Agreement are otherwise non-
transferable. Notwithstanding the foregoing, if as a result of the transfer of
Licensed Materials or Products it would be used or operated in a country other
than the United States, the warranties furnished hereunder shall not be
transferable; however, should the Warranty Period for such item have not expired
by the time of such transfer, Seller agrees to offer to the transferee Seller's
standard warranty for such item offered (or intended to be offered) by Seller in
such country, if any, for the remainder of such unexpired Warranty Period.
Furthermore, Seller shall have no obligation hereunder to honor any warranty
claim made by any equipment manufacturer competitor of Seller, including any
party whose principal business is the sales of new or used telecommunications
equipment, it being the intention of the parties that only claims from a user of
such equipment directly in the provision of telecommunications services to the
public are authorized under any transferred warranty.

                                3. ARTICLE III
              PROVISIONS APPLICABLE TO THE LICENSING OF SOFTWARE

3.1  GENERAL

     The provisions of this Article apply to the granting of licenses pursuant
to this Agreement by Seller to Customer for Licensed Materials.

3.2  LICENSE

     Upon delivery of Licensed Materials, but subject to payment of all
applicable license fees including, but not limited to, any continuing up-date
fees, Seller grants to Customer a perpetual, personal, nontransferable, except
as set forth in Section 3.11, and nonexclusive license pursuant to this
Agreement to use Licensed Materials in the Territory with either the Designated
Processor or temporarily on any comparable replacement, if the Designated
Processor becomes inoperative, until the Designated Processor is restored to
operational status. Customer shall use Licensed Materials only for its own
internal business operation.

     The license grants Customer no right to and Customer will not sublicense
such Licensed Materials, or modify, decompile, or
<PAGE>

disassemble Software furnished as object code to generate corresponding Source
Code,

3.3  TITLE, RESTRICTIONS AND CONFIDENTIALITY

     All Licensed Materials (whether or not part of Firmware) furnished by
Seller, and all copies thereof made by Customer, including translations,
compilations, and partial copies are the property of Seller.

     Except for any part of such Licensed Materials which is or becomes
generally known to the public through acts not attributable to Customer,
Customer shall hold such Licensed Materials in confidence, and shall not,
without Seller's prior written consent, disclose, provide, or otherwise make
available, in whole or in part, any Licensed Materials to anyone, except to its
employees having a need- to-know. Customer shall not copy Software embodied in
Firmware. Customer shall not make any copies of any other Licensed Materials
except as necessary in connection with the rights granted hereunder. Customer
shall reproduce and include any Seller copyright and proprietary notice on all
such necessary copies of the Licensed Materials. Customer shall also mark all
media containing such copies with a warning that the Licensed Materials are
subject to restrictions contained in an agreement between Seller and Customer
and that such Licensed Materials are the property of Seller. Customer shall
maintain records of the number and location of all copies of the Licensed
Materials.

     Customer shall take appropriate action by instruction, agreement, or
otherwise, with the persons permitted access to the Licensed Materials so as to
enable Customer to satisfy its obligations under this Agreement.

     When the Licensed Materials are no longer needed by Customer, or if
Customer's license is canceled or terminated, Customer shall return all copies
of such Licensed Materials to Seller or follow written disposition instructions
provided by Seller.

3.4  CHANGES IN LICENSED MATERIALS

     Prior to shipment, Seller may at any time modify the specifications
relating to its Licensed Materials.  Seller may substitute modified Licensed
Materials to fill an order, provided the modifications, under normal and proper
Use, do not materially adversely affect the Use, Function, or performance of the
ordered Licensed Materials or result in a Material Service
<PAGE>

Impact. Unless otherwise agreed, such substitution shall not result in any
additional charges to Customer with respect to licenses for which Seller has
quoted fees to Customer.

     If Seller has not provided two (2) archival copies of the Licensed
Materials, Customer may also make and maintain an archival copy of the Licensed
Materials for so long as such Licensed Materials is relevant to Customer's
operations and provided that the original license issued for such Licensed
Materials is valid and effective. Moreover, nothing in this Agreement shall be
deemed to prevent Customer from making backup copies, with Seller's pre-
approval, which will not be unreasonably withheld, of the disk drive of the
Designated Processor on which Licensed Materials furnished hereunder are loaded
and run, but all such copies to the extent they contain a copy of such Licensed
Materials shall be subject to return, erasure, or destruction as provided in
this section.

3.5  MODIFICATIONS TO SOFTWARE

     Customer may request Seller to make changes to Seller's Software.  Upon
receipt of a document describing in detail the changes requested by Customer,
Seller will respond in writing to Customer within ninety (90) days.  If Seller
agrees to undertake such modifications, the response shall quote a proposed
delivery date and a fee for a license under such modified Software.

3.6  MODIFICATION BY CUSTOMER
     Unless otherwise agreed, Customer is not granted any right to modify
Software furnished by Seller under this Agreement.

3.7  RELATED DOCUMENTATION

     Seller shall furnish to Customer, at no additional charge, two copies of
the Related Documentation for Software furnished by Seller pursuant to this
Agreement. Such Related Documentation will be that customarily provided by
Seller to its Customers at no additional charge. Such Related Documentation
shall be provided prior to, with, or shortly after provision of Software by
Seller to Customer. Additional copies of the Related Documentation are available
at prices set forth in the Customer Price List.

3.8  SOFTWARE WARRANTY

          a)  Seller warrants to Customer only that:
<PAGE>

(i)   Software developed by Seller and Software integral to the Products
provided to Customer will, upon shipment, be free from those defects which
materially affect performance in accordance with Seller's Specifications and
Seller further warrants that it has the right to grant the licenses to Use
Software it grants under this Agreement; and

(ii)  With respect to Software not covered in paragraph (a), sub-paragraph (i),
Seller to the extent permitted, does hereby assign to Customer the warranties
given to Seller by its supplier of such Software.

(iii) The TDMA optional features buyout package will provide Customer with the
same features and functionality offered to AT&T Wireless as of the date of
System Acceptance for the Initial System.

      b)  The Warranty Periods listed below are applicable to Software developed
          by Seller and Software integral to the Products provided to Customer,
          the Related Documentation associated with such Software, and the
          medium on which such Software is recorded, unless otherwise stated.

          Software                      Warranty Period
          --------                      ---------------

     PCS Switching Center                   1 Year
     and Base Station

     Transmission System                    1 Year

     All Other                              1 Year

     The Warranty Period for media and Related Documentation shall commence on
the same date as commences the Warranty Period for their associated Software.
The Warranty Period for PCS Switching Center and Base Station Software
(including any prior Software Update issued to Customer in respect thereto)
expires upon installation of any subsequent Software Update or Software Generic
Release for such Software (or Software Update).
<PAGE>

          c)   If, under normal and proper use during the applicable Warranty
               Period, Software covered in paragraph (a), subparagraph (i)
               proves to have a defect, which materially affects its performance
               in accordance with the specifications referenced in the order,
               and Customer notifies Seller in writing of such defect promptly
               after Customer discovers or should have discovered such defect
               and follows Seller's instructions, if any, regarding return of
               defective Software, Seller shall at its option, attempt first to
               either correct or replace such Software without charge or if
               correction or replacement is not feasible, provide a refund or
               credit based on the original license fee, provided however, if
               such removal will cause a Material Service Impact, Customer's
               consent shall be required prior to any such removal.

          d)   Software returned for correction or replacement will be accepted
               by Seller only in accordance with its instructions and procedures
               for such returns. The transportation expense associated with
               returning such Software to Seller shall be borne by Customer.
               Seller shall pay the costs of transportation of the corrected or
               replacing Software to the destination designated by Customer
               within the Territory.

          e)   If Seller determines that Software for which warranty Service is
               claimed is not defective or nonconforming, Customer shall pay
               Seller's costs of handling, inspecting, testing and transporting
               and, if applicable, traveling and related expenses.

          f)   Seller makes no warranty with respect to defective conditions or
               nonconformities resulting from the following: Customer
               modifications (other than in accordance with Seller's
               instructions), misuse, neglect, accident, or abuse; installation,
               or maintenance by other than Seller, its employees,
               subcontractors, representatives, or agents; use in a manner not
               in accordance with Seller's specifications, operating
               instructions, or license-to-use; or failure of Customer to apply
               previously
<PAGE>

               applicable Seller modifications and corrections. Moreover, no
               warranty is made that Software will run uninterrupted or error
               free.

          g)   THE FOREGOING SOFTWARE WARRANTIES ARE EXCLUSIVE AND ARE IN LIEU
               OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES, INCLUDING BUT NOT
               LIMITED TO WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
               PARTICULAR PURPOSE. CUSTOMER'S SOLE AND EXCLUSIVE REMEDY SHALL BE
               SELLER'S OBLIGATION TO CORRECT, REPLACE, CREDIT, OR REFUND AS SET
               FORTH ABOVE IN THIS WARRANTY.

     If Customer and Seller have a disagreement as to whether or not a problem
is a defect or non-conformity covered by this warranty, Seller agrees to correct
the problem and bill Customer for the corrective action under Section "Invoices
and Term of Payment" of the Agreement- Seller will segregate such bills. Such
disputed warranty claims will be subject to resolution by the arbitration in
accordance with Section 1.40 of this Agreement, and if resolved in Customer's
favor, Seller agrees to credit Customer for the costs of corrective action
covered by warranty.

     Seller agrees that if Customer acquired equipment, software, or licensed
materials (including, without limitation, radio frequency and network equipment,
but not including components internal to Products furnished under this
Agreement) from a source other than Seller, and if Customer installs such an
item in or interconnects such an item with any PCS System, Products or Licensed
Materials obtained under this Agreement, Seller agrees that Seller's warranties
hereunder shall not be voided or affected; provided, however, Seller's
warranties shall not apply to damage, defects, nonconformities, or degradation
in performance in Products and/or Licensed Materials purchased (or, with respect
to Licensed Materials, licensed)under this Agreement to the extent they are
caused by installation or interconnection of the item in violation of Seller's
instructions, which such instructions shall be based upon reasonable and
appropriate technical considerations, or caused by (but not simply revealed by)
such installed or interconnected items. Seller shall be entitled to bill
Customer Seller's Standard Charges for Seller's efforts to identify and/or
correct any such damage, defect, nonconformity, or degradation in performance so
caused, and to test and transport the corrected item. Nothing in this paragraph
shall itself be deemed to require Seller to publish interface information or
otherwise to
<PAGE>

facilitate such installation or interconnection of items not obtained from
Seller.

     If as a result of a defect or non-conformity covered by this warranty a
Material Service Impact is experienced, seller shall at its sole cost and
expense repair or correct the problem or replace the defective Products or
Licensed Materials and ship any required replacement Products (or components
thereof) or replacement Licensed Materials to Customer as promptly as possible.
If such repair, replacement, or installation or replacement Products or Licensed
Materials require the Services of Seller service personnel at Customer's sites,
Seller shall, at its sole cost and expense, dispatch such service personnel as
are required to correct such problem as promptly as possible upon being notified
thereof by Customer.

     The warranties provided for Licensed Materials are transferable to the
extent provided in Section 3.11 "LIMITED TRANSFERABILITY" of this Agreement. The
warranties on Products (including any warranties for the installation and repair
thereof) shall be transferable along with the Products with which they are
associated. No charge shall be made by Seller to Customer in respect of any such
transfer of warranty; but, Seller shall have the right to charge the transferee
a nominal fee to compensate Seller for registering the transferee as entitled to
the transferred warranty and otherwise readying Seller to react to warranty
claims made by the transferee. Warranties provided in this Agreement are
otherwise non-transferable. Notwithstanding the foregoing, if as a result of the
transfer of Licensed Materials or Products it would be used or operated in a
country other than the United States, the warranties furnished hereunder shall
not be transferable; however, should the Warranty Period for such item have not
expired by the time of such transfer, Seller agrees to offer to the transferee
Seller's standard warranty for such item offered (or intended to be offered) by
Seller in such country, if any, for the remainder of such unexpired Warranty
Period Furthermore, Seller shall have no obligation hereunder to honor any
warranty claim made by any equipment manufacturer competitor of Seller,
including any party whose principal business is the sales of new or used
telecommunications equipment, it being the intention of the parties that only
claims from a user of such equipment directly in the provision of
telecommunications services to the public are authorized under any transferred
warranty.

3.9  CANCELLATION OF LICENSE
<PAGE>

      If Customer fails to comply with any of material terms and conditions of
the second Paragraph of Section 3.2 and Section 3.3 and such failure continues
beyond thirty (30) days after receipt of written notice thereof by Customer,
Seller, upon written notice to Customer, may cancel any affected license for
Licensed Materials.

3.10  TAXES APPLICABLE TO SOFTWARE

      Notwithstanding clause TAXES in Article I of this Agreement, Seller shall
not bill, collect, or remit any state or local sales or use tax with respect to
the license of Software under this Agreement, or with respect to the performance
of Services related to such software, which Customer represents to Seller is not
properly due under Customer's interpretation of the law of the taxing
jurisdiction, if (1) Customer submits to Seller a written explanation of the
authorities upon which Customer bases its position that the license or
performance of Services is not subject to sales or use tax, and (2) Seller
agrees that there is authority for Customer's position, provided, however, that
Customer shall hold Seller harmless for all costs and expenses (including, but
not limited to, taxes and related charges payable under clause TAXES, and
attorneys fees) arising from the assertion by a taxing authority that the
license of, or the performance of Services with respect to, the Software was
subject to state or local sales or use tax.

3.11  LIMITED TRANSFERABILITY

      a.  Where Customer elects to transfer Products furnished under this
          Agreement to a third party and where such Products will remain in
          place and operational for the purpose of continuing to provide
          wireless telecommunications services in the area for which such
          Products were installed, or where Customer elects to transfer Products
          to another of its Markets or to an Operating Affiliate for reuse
          within the United States (including Puerto Rico), Customer may
          transfer its right to use the Licensed Materials furnished under this
          Agreement for Use with such Products without Seller's consent and
          without the payment of any additional Licensed Materials right-to-use
          fee(s) by the transferee, except where feature or size sensitive units
          are a factor, but only under the following conditions:

               (1)  The right to use such Licensed Materials may be transferred
                    only together with the
<PAGE>

                    Products with which Customer has a right to use such
                    Licensed Materials, and such right to use the Licensed
                    Materials shall continue to be limited to Use with such
                    Products:

               (2)  Before any such Licensed Materials shall be transferred,
                    Customer shall notify Seller of such transfer and the
                    transferee shall have agreed in writing (a copy of which
                    will be provided to Seller) to keep the Licensed Materials
                    in confidence and to corresponding conditions respecting use
                    of Licensed Materials as those imposed on Customer in this
                    Agreement; and

               (3)  The transferee shall have the same right to Licensed
                    Materials warranty and Licensed Materials maintenance for
                    such Licensed Materials as the transferor, provided the
                    transferee continues to pay the fees, including recurring
                    Licensed Materials Update fees, if any, associated with such
                    Licensed Materials or maintenance.

     b.   Except as may otherwise in this Agreement be provided expressly,
          Customer shall have no right to transfer Licensed Materials furnished
          by Seller under this Agreement without consent of Seller. If Customer
          elects to transfer Products purchased under this Agreement for which
          it does not under this Agreement have the right to transfer the
          related Licensed Materials, Seller agrees that upon written request of
          the transferee of such Products, or of Customer, Seller shall not
          without reasonable cause fail to grant to the transferee a license to
          use such Licensed Materials with the Products upon Seller's then
          standard license terms and conditions, including any and all recurring
          or continuing fees associated with such Licensed Materials, but
          excluding any nonrecurring initial license fees previously paid for
          such Licensed Materials by Customer.

3.12  AVAILABILITY AND SUPPORT OF LICENSED MATERIAL FEATURES/ LICENSED MATERIAL
UPDATES
<PAGE>

      Seller agrees to make available to Customer, at Seller's Standard Charges
therefor, those additional Licensed Materials features applicable to the Initial
Systems and other Seller's Manufactured Product which are developed by Seller
and which Seller has a right to and has elected to license to others providing
wireless telecommunications services.

      Seller shall, when available, offer to Customer at Seller's prices quoted
in the then current applicable Customer Price List, maintenance and/or annual
Licensed Material Update Services, as provided in this Agreement.

3.13  YEAR 2000 COMPLIANCE WARRANTY

      a.  The Seller represents and warrants that during the Warranty Periods
          set forth in Section 2.11 (b) any Seller Products and Software
          delivered by the Seller to the Customer under this Contract will

               (1)  accurately and fully record, store, present and process
                    calendar dates falling on or after January 1, 2000, with
                    substantially the same functionality as such products
                    record, store, present and process calendar dates falling on
                    or before December 31, 1999; and

               (2)  provide substantially the same functionality with respect to
                    the introduction of records containing dates falling on or
                    after January 1, 2000, as it provides with respect to the
                    introduction of records containing dates falling on or
                    before December 31, 1999. All of the foregoing functionality
                    shall be known as "Year 2000 Capable."

     b.   When Customer purchases more than one version of Year 2000 Capable
          software, if they are intended by Seller to interoperate, all such
          versions of Year 2000 Capable Software will be compatible and
          interoperate in such manner as to process between them, as applicable,
          date related data correctly as described in Section (a) above.

     c.   The foregoing sets forth an additional warranty for Seller's Products
          and Software. The failure of the Products and Software to meet the
          foregoing
<PAGE>

          requirements during the warranty period set forth in subsection 3.8(b)
          entitles Customer to the remedies set forth in subsection 3.8(c).

     d.   Nothing in the foregoing shall be deemed to make Seller responsible
          for the Year 2000 capability of any third party Software
          interoperating or intending to operate with Seller's Software.
          Customer and/or the manufacturer of other supplier of such third party
          Software shall be responsible for any Year 2000 compliance and
          assuring the ability of such third party Software to successfully
          operate while interoperating with Seller's Software.

                                 4. ARTICLE IV
    PROVISIONS APPLICABLE TO ENGINEERING, INSTALLATION, AND OTHER SERVICES

4.1  GENERAL

     The provisions of this Article IV shall be applicable to the furnishing by
Seller of Services other than Services furnished pursuant to any other Article
of this Agreement.

4.2  ACCEPTANCE OF INSTALLATION

     At reasonable times during the course of Seller's installation, Customer,
at its request may, or upon Seller's request, shall, inspect completed portions
of such installation. Seller shall provide Customer with at least seven (7) days
prior notice before Seller commences installation completion tests, and Customer
shall have the right to observe Seller's testing of the Product being installed
to determine that such testing and the test results are in accordance with
Seller's acceptance standards or acceptance procedures, as described in
Attachment D. If Customer does not attend Seller's tests, Seller shall proceed
with the tests and promptly provide the test results to Customer. The
installation work shall be considered complete and ready for acceptance by
Customer when the Product has been installed and tested by Seller in accordance
with its standard procedures, and Seller represents such Product to be in
working order. Upon completion of the installation, Seller will submit to
Customer a Notice of Completion, pursuant to section "1.27 -Notices" of this
Agreement. The issuance of said Notice of Completion shall be deemed
"Provisional Acceptance."

     Upon receipt by Customer from Seller of a Notice of Completion, Customer
has the right to perform an Acceptance Test
<PAGE>

with respect to Products, Software or other items furnished pursuant to this
Agreement. Unless otherwise agreed by the parties, Customer shall have an
Acceptance Test Period of thirty (30) consecutive calendar days from the date of
the Notice of Completion to conduct the Acceptance Test. The job will be
considered as meeting Final Acceptance unless Seller receives notification to
the contrary within thirty (30) days after submitting the notice of completion.
In Revenue Service at any time after completion of the installation shall
automatically constitute Final Acceptance of the relevant installation. The
provisions of this Section 4.2 shall not apply to acceptance of an Initial
System in each Market. A separate process for determination of System Acceptance
for an Initial System shall be conducted pursuant to the provisions of
Attachment D.

     If an item so fails the Acceptance Test during the Acceptance Test Period,
the Acceptance Date shall be extended on a day-to-day basis until the item as
modified, is accepted. If no notification is submitted to Seller by Customer
within such Acceptance Test Period stating that the item has initially failed
the Acceptance Test, then the date on which such period commences shall be the
Acceptance Date. When an item has initially failed acceptance testing, prior to
Customer resuming the Acceptance Test Customer and Seller must agree that all
problems which would cause a Material Service Impact have been corrected by
Seller. Should the parties disagree as to whether a problem would cause a
Material Service Impact, the matter will be submitted to arbitration in
accordance with Section 1.40. Problems which would not cause Material Service
Impact shall be corrected by Seller at Seller's expense as quickly as
practicable after Acceptance.

     No later than thirty (30) days after the effective date of this Agreement,
Seller shall provide Customer with a proposed Acceptance Test Plan (ATP).
Customer shall within 30 days of receipt of Seller's ATP, provide proposed
changes or additions to the ATP. Seller, upon receipt of such Customer proposed
changes or additions, shall provide a final ATP to Customer within seven (7)
days. The completed ATP shall be incorporated as Attachment D to this Agreement.

4.3  CONDITIONS OF INSTALLATION AND OTHER SERVICES PERFORMED ON CUSTOMER'S SITE

     The respective responsibilities of Seller and Customer are set forth in the
Responsibility Matrix attached hereto as Attachment C.
<PAGE>

     4.3.1  ITEMS PROVIDED BY CUSTOMER

     Except as the parties may have otherwise agreed for Turnkey Services or in
the Responsibility Matrix, as set forth in this Agreement or in other agreements
of the parties, Customer will be responsible for furnishing the following items
(as required by the conditions of the particular installation or other on-site
Service, hereinafter collectively referred to as the "Service") at no charge to
Seller and these items will not be included in Seller's price for the Service.
Seller's representative shall have the right to inspect the site prior to
Service start date. Should Customer fail to furnish any of such items for which
it is responsible after Seller provides Customer notice, Seller may furnish such
items and charge Customer for them in addition to the prices otherwise charged
by Seller for the Service.

     Regulatory Commission Approvals--Prior to Service Start Date, obtain all
     -------------------------------
such material approvals, licenses, permits, tariffs and/or other authorities
from the Federal Communications Commission and state and local public utilities
commissions as may be reasonably necessary for construction and operation of a
Personal Communications Services System.

     Easements, Permits and Rights-of-Way--Prior to Service Start Date, provide
     ------------------------------------
all rights-of-way, easements, licenses to come upon land to perform the Service,
permits and authority for installation of Products and other item; permits for
opening sidewalks, streets, alleys, and highways; and construction and building
permits.

     Access to Building and Work Site--Allow employees of Seller and its
     --------------------------------
subcontractors free access to premises and facilities at all normal business
hours during the scheduled Service or at such other times as are reasonably
requested by Seller. Customer shall obtain for Seller's and its subcontractors'
employees any necessary identification and clearance credentials to enable
Seller and its subcontractors to have access to the work site.

     General Building Conditions--When Customer provides or arranges for a third
     ---------------------------
party to provide facilities or structures for PCS installation services,
Customer shall prior to Service start date:

     a.   Insure that the PCS site structures are in a structurally safe and
          sound condition to properly house the materials to be installed, in
          accordance with weight, strength, and structural requirements
<PAGE>

          specified by Seller. Prior to the start of installation, if requested
          by Seller, Customer shall provide Seller a certificate of a duly
          licensed architect or engineer (dated within ninety (90) days of the
          date such certificate is furnished to Seller) stating that the site(s)
          meets such requirements;

     b.   Take such action as may be necessary to insure that the premises will
          be dry and free from dust and Hazardous Materials, including but not
          limited to asbestos, and in such condition as not to be injurious to
          Seller's or its subcontractors' employees or to the materials to be
          installed. Prior to commencement of the Services and during the
          performance of the Service, Customer shall, if requested by Seller,
          provide Seller with sufficient data to assist Seller's supplier in
          evaluating the environmental conditions at the work site (including
          the presence of Hazardous Materials). The price quoted by Seller's
          supplier for the Service does not include the cost of removal or
          disposal of the Hazardous Materials from the work site. Customer is
          responsible for removing and disposing of the Hazardous Materials,
          including but not limited to asbestos, prior to commencement of the
          Service.

     Sensitive Equipment--Prior to commencement of the Service, inform Seller of
     -------------------
the presence of any sensitive equipment at the work site (e.g., equipment
sensitive to static electricity or light).

     Repairs to Buildings--Prior to Service start date, make such alterations
     --------------------
and repairs as are necessary for proper installation of items to be installed.

     Openings in Buildings--Prior to Service start date, furnish suitable
     ---------------------
openings in buildings to allow the items to be installed to be placed in
position, and provide necessary openings and ducts for cable and conductors in
floors and walls as designated on engineering drawings furnished by Seller.

     Surveys--Prior to Service start date furnish surveys (describing the
     -------
physical characteristics, legal limitations and utility locations for the work
site) and a legal description of the site.

     Electrical Current, Heat, Light and Water--Provide electric current for
     -----------------------------------------
charging storage batteries and for any other
<PAGE>

necessary purposes with suitable terminals where work is to be performed;
provide temperature control and general illumination (regular and emergency) in
rooms in which work is to be performed or Products or other items stored,
equivalent to that ordinarily furnished for similar purposes in a working
office; provide exit lights; provide water and other necessary utilities for the
proper execution of the Service.

     PCS Utility Requirements--Negotiate with the power and telephone companies
     ------------------------
for installation of the power and telephone facilities necessary to proper
operation of the Products and/or other items being installed. The method by
which such facilities are interconnected with Seller's Products shall be
delivered to Customer sufficiently in advance of the time by which Customer must
have such facilities installed so that Customer may complete installation in a
timely manner. The type and quantity of such facilities shall be subject to
Seller's reasonable approval. Customer shall have the telephone company provide,
place, install, extend and terminate telephone facilities into the PCS; line up
and test the telephone company facilities outside and inside the PCS; and
provide to Seller copies of the test results prior to Seller's commencing
integration testing of the PCS.

     Material Furnished by Customer--New or used material furnished by Customer
     ------------------------------
shall be in such condition that it requires no material repair and no material
adjustment or test effort in excess of that normal for new equipment. Customer
assumes all responsibility for the proper functioning of such material. Customer
shall also provide the necessary information for Seller to properly Install such
material.

     Furniture--provide and install all furniture.
     ---------

     Floor Space and Storage Facilities--Provide at the cell site or switch
     ----------------------------------
location, where practicable, during progress of the Service, suitable and easily
accessible floor space and storage facilities (a) to permit storing major items
of Products and other material closely adjacent to where they will be used, (b)
for administrative and luncheon purposes, (c) for Seller's and its
subcontractors' employees' personal effects, and (d) for tools and property of
Seller and its subcontractors. Where the Service is to be performed outside of a
building or in a building under construction, Customer shall, in addition to the
above requirements, as appropriate, permit or secure permission for Seller and
its subcontractors to maintain at the work site, storage facilities (such as
trailers) for Products, materials
<PAGE>

and other items and for tools and equipment needed to complete the Service.

     Watch Service--For PCS, provide reasonable normal security (for cell sites,
     -------------
commercial alarms) necessary to prevent admission of unauthorized persons to
building and other areas where installation Service is performed and to prevent
unauthorized removal of the Products and other items. Seller will inform
Customer as to which storage facilities at the work site Seller will keep
locked; such storage facilities will remain closed to Customer's surveillance.

     Hazardous Materials Cleanup--At the conclusion of the Service, Customer
     ---------------------------
shall be responsible for the cleanup, removal, and proper disposal of all
Hazardous Materials present at Customer's premises that were brought onto the
premises by Customer, its subcontractors or agents .

     Access to Existing Facilities--Customer shall permit Seller reasonable use
     -----------------------------
of such portions of the existing plant or equipment as are necessary for the
proper completion of such tests as require coordination with existing
facilities. Such use shall not interfere with the Customer's normal maintenance
of equipment.

     Grounds--Customer shall provide access to suitable and isolated building
     -------
ground as required for Seller's standard grounding of equipment. Where
installation is outside or in a building under construction, Customer shall also
furnish lightning protection ground.

     Requirements for Customer Designed Circuits--Customer shall furnish
     -------------------------------------------
information covering the proper test and readjust requirements for apparatus and
requirements for circuit performance associated with circuits designed by
Customer or standard circuits modified by Customer's drawings.

     Through Tests and Trunk Tests--Customer shall make required through tests
     -----------------------------
and trunk tests to other offices after Seller provides its notice of completion
or notice of advanced turnover.

     4.3.2  ITEMS TO BE FURNISHED BY SELLER

     The following items will be furnished by Seller (if required by the
conditions of the particular Service) and the price thereof is included in
Seller's price for Service:


<PAGE>

     Protection of Equipment and Building -Seller shall provide protection for
     ------------------------------------
Customer's equipment and buildings during the performance of the Service and in
accordance with Seller's standard practices.

     Method of Procedure--Seller shall prepare a detailed Method of Procedure
     -------------------
("MOP") before starting work on live equipment. Customer shall review the MOP
and any requested changes shall be negotiated. Customer shall give Seller
written acceptance of the MOP prior to start of the work.

     The following items will be furnished by Seller if requested by Customer,
but Customer will be billed and shall pay for them in addition to Seller's
standard or firm quoted price for the Services:

     Protection of Building and Equipment--Seller may provide protection of
     ------------------------------------
buildings and equipment in accordance with special practices of Customer
differing from Seller's standard practices.

     Maintenance--Maintenance of Products, Software and other items from
     -----------
completion of installation until date of acceptance.

     Locally Purchased Items--Purchase of items indicated by Seller's
     -----------------------
specifications as needing to be purchased locally.

     Readjusting Apparatus--Seller may provide readjustment (in excess of that
     ---------------------
normally required on new apparatus) of apparatus associated with relocated or
rewired circuits.

     Cross-Connections (Other than to Outside Cable Terminations)--Seller may
     ------------------------------------------------------------
run or rerun permanent cross-connections in accordance with revised cross-
connection lists furnished by Customer.

     Handling, Packing, Transportation and Disposition of Removed and Surplus
     ------------------------------------------------------------------------
Customer Equipment--Seller may pack, transport, and dispose of surplus and
- ------------------
removed Customer equipment as agreed by the parties.

     Premium Time Allowances and Night Shift Bonuses--Seller may have its
     -----------------------------------------------
Services personnel work premium time and night shifts. To the extent that such
premium time and/or night shifts are needed for Seller to timely perform its
obligations under this Agreement due to Customers failure to meet its
responsibilities, Customer shall reimburse Seller for the costs of said premium
time and/or night shifts.
<PAGE>

     Emergency Lighting System--Seller may provide new emergency lighting system
     -------------------------
(other than the original ceiling mounted stumble lighting) to satisfy
illumination and safety needs of Products of certain heights.

4.4  WORK DONE BY OTHERS

     Work done at the site by Customer or its other vendors or contractors shall
not interfere with Seller's performance of the installation or other Services.
If Customer or its other vendors or contractors fail to timely complete the site
readiness or if Customer's or its other vendors or contractors' work interferes
with Seller's performance, the scheduled completion date of Seller's Services
under this agreement shall be extended as necessary to compensate for such delay
or interference and Customer shall reimburse Seller for any actual direct and
reasonable expenses directly resulting from such delay or interference.

4.5  SERVICES WARRANTIES

     a.   Seller warrants to Customer only, that Services will be performed in a
          careful and workmanlike manner and in accordance with Seller's
          specifications or those referenced in the order and with accepted
          practices in the community in which such Services are performed, using
          material free from defects except where such material is specified or
          provided by Customer. If Services prove to be not so performed and if
          Customer notifies Seller, with respect to engineering, installation,
          or repair Services, within a one (1) year period commencing on the
          date of completion of the Service, and with respect to other Services,
          as identified by Customer in writing, Seller, at its option, either
          will correct the defective or nonconforming Service or render a full
          or prorated refund or credit based on the original charge for the
          Services.

     b.   Customer shall deliver to Seller RF design for each of the Markets it
          elects to deploy. In accordance with Attachment D, Seller will review
          and comment to Customer on each RF design within twenty (20) business
          days following receipt thereof from the Customer.

     c.   Where Seller performs engineering or installation Services as part of
          a combined engineering, furnishing, and installation order, the one
          (1) year
<PAGE>

          period referenced above shall commence on completion of the
          installation Service.

     d.   THE FOREGOING SERVICES WARRANTIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL
          OTHER EXPRESS AND IMPLIED WARRANTIES INCLUDING, BUT NOT LIMITED TO,
          WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
          CUSTOMER'S SOLE AND EXCLUSIVE REMEDY SHALL BE SELLER'S OBLIGATION TO
          MAKE CORRECTIONS OR GIVE A CREDIT OR REFUND AS SET FORTH ABOVE IN THIS
          WARRANTY.

     e.   With respect to turnkey services, consultation services, and other
          services not identified in (a) above, the applicable warranty
          provisions will be negotiated on a case by case basis.

                                 5.  ARTICLE V

                        ENTIRE AGREEMENT AND EXECUTION

5.1  ENTIRE AGREEMENT

     The terms and conditions contained in this Agreement supersede all prior
oral or written understanding's between the parties with respect to the subject
matter hereof and constitute the entire agreement of the parties with respect to
such subject matter. Such terms and conditions shall not be modified or amended
except by a writing signed by authorized representatives of both parties.

5.2  COUNTERPARTS

     This Agreement may be executed in counterparts, each of which shall be an
original but both of which together shall constitute one instrument. Each
counterpart may consist of a number of copies hereof, each signed by less than
all, but together signed by all, of the parties hereto.
<PAGE>

     IN WITNESS WHEREOF, the parties have caused this Agreement to be executed
by their duly authorized representatives on the date(s) indicated.


TELECORP PCS, INC.                           LUCENT TECHNOLOGIES INC.

By:   /s/ Gerald T. Vento                    By: /s/ [SIGNATURE ILLEGIBLE]
    -----------------------                      -------------------------

Name:    Gerald T. Vento                     Name:
      ---------------------                        -----------------------

Title:         CEO                           Title:
       --------------------                         ----------------------

Date:     May 12, 1998                       Date:     May 12, 1998
      ---------------------                        -----------------------

<PAGE>

                                 ATTACHMENT A
<PAGE>

<TABLE>
<CAPTION>
                                                             TELECORP
                                                          PRICING SUMMARY
                                                         Total all Markets
- --------------------------------------------------------------------------------------------------------------------------
                                     1998                      1999                   2000                   2001
Component                   QUANTITY  PRICE           QUANTITY  PRICE        QUANTITY  PRICE        QUANTITY  PRICE
- --------------------------------------------------------------------------------------------------------------------------
<S>                         <C>       <C>             <C>       <C>          <C>       <C>          <C>       <C>
TYPE I                            45  $   7,257,420         25  $ 3,225,655        60  $ 7,500,000        50  $ 6,250,000
TYPE I GROWTH                                    30         23  $ 1,012,000        13  $   572,000        18  $   792,000
TYPE II                           15  $   2,038,740         55  $ 7,475,380        40  $ 4,600,000        25  $ 2,875,000
TYPE III                         410  $  74,408,660        115  $20,496,240        50  $ 7,250,000        30  $ 4,350,000
BTS ENG. & INSTALL               470  $   3,532,625        195  $ 1,565,113       150          N/A       105          N/A
FILTER REPLACEMENT E&I                $      46,750             $   178,500
DUPLEXER DEPLOYMENT                   $     300,000
OSF                                   $     300,000
BTS OPTIMIZATION                 470          Incl.        195                    150                    105
BTS TRANSPORT & DELIVERY         470  $     799,000        195  $   331,500       150  $   255,000       105  $   178,500
EXPANSION RADIOS                 885  $   2,885,625      2,190  $23,756,800     1,450  $12,325,000     1,550  $12,090,000
MSC
  5 ESS                            5  $           0             $         0            $ 1,111,781            $   748,940
  ACCESS MANAGER                   5  $           0             $         0            $ 2,553,858            $ 1,282,176
OPTIONAL SOFTWARE                     $  20,000,000             $    13,320            $   474,600            $   767,706
MSC B&I                               $   2,434,400             $   110,000            $   305,000            $   190,000
MSC POWER with Backup                 $     925,000             $         0            $   150,000            $    75,000
PROJECT MGMT                          $     900,000             $         0            $         0            $         0
BTS SPARES                            $     408,284             $    25,000            $    25,000            $    25,000
MSC SPARES                            $   1,957,176             $         0            $         0            $         0
ANNUAL BTS FEE                   470  $           0        195  $         0       150  $   917,700       105  $ 1,124,700
ANNUAL MSC FEE                     5  $           0          5  $         0         5  $ 1,440,000         5  $ 1,440,000
NETWORK MGMT
  AUTOSPACE                           $      90,000                   Incl.                  Incl.                  Incl.
  NOC1                                $     600,483             $   105,000            $   105,000            $    73,200
  BILLDATS                            $     567,120             $    93,780            $    93,780            $    62,520
TRAINING                                      Incl.                   Incl.            $    20,000            $    20,000
DOCUMENTATION                                 Incl.                   Incl.                  Incl.                  Incl.
INSTALLATION TEST EQUIP.              $      25,000                   Incl.            $   100,000                    N/A
RF AUDIT                              $   1,503,250                     N/A                    N/A                    N/A
RS&R                                                                                                          $ 2,000,000
ONGOING TECHNICAL SUPPORT                     Incl.                   Incl.                  Incl.                  Incl.
 (1-800 NUMBER)
SYSTEM INTEGRATION                    $     400,000
OTA*                                          Incl.                   Incl.                  Incl.                  Incl.
NEW MARKET INCENTIVE*                  ($26,000,000)            $   178,500
                          ------------------------------------------------------------------------------------------------
TOTAL                                 $  95,439,533             $68,211,788            $39,799,719            $34,344,744
                          ================================================================================================
- --------------------------------------------------------------------------------------------------------------------------
*First Market=$2m.          *Second Market=$3m.       *Third Market=$4m.     *Fourth Market=$6m.    *Fifth Market=$9m.

<CAPTION>
- ------------------------------------------------------------------------------------
                                              2002                   TOTAL
Component                            QUANTITY  PRICE        QUANTITY  PRICE
- ------------------------------------------------------------------------------------
<S>                                  <C>       <C>          <C>       <C>
TYPE I                                     35  $ 4,375,000       215  $  28,608,075
TYPE I GROWTH                              25  $ 1,100,000        79  $   3,476,000
TYPE II                                    20  $ 2,300,000       155  $  19,289,120
TYPE III                                   25  $ 3,625,000       630  $ 110,129,900
BTS ENG. & INSTALL                         80          N/A       665  $   5,097,736
FILTER REPLACEMENT E&I
DUPLEXER DEPLOYMENT
OSF
BTS OPTIMIZATION                           80                  1,000
BTS TRANSPORT & DELIVERY                   80  $   136,000     1,000  $   1,700,000
EXPANSION RADIOS                        1,950  $14,625,000     8,025  $  65,684,425
MSC
  5 ESS                                        $   608,013         5  $   2,468,734
  ACCESS MANAGER                               $ 1,009,650         5  $   4,845,684
OPTIONAL SOFTWARE                              $ 1,038,850         0  $  22,294,478
MSC B&I                                        $   168,000         0  $   3,207,400
MSC POWER with Backup                          $    60,000         0  $   1,210,000
PROJECT MGMT                                   $         0         0  $     900,000
BTS SPARES                                     $    25,000         0  $     568,284
MSC SPARES                                     $         0         0  $   1,957,176
ANNUAL BTS FEE                             80  $ 1,269,600     1,000  $   3,312,000
ANNUAL MSC FEE                              5  $ 1,440,000         5  $   4,320,000
NETWORK MGMT
  AUTOSPACE                                          Incl.            $      90,000
  NOC1                                         $    73,200            $     956,883
  BILLDATS                                     $    62,520            $     879,720
TRAINING                                       $    20,000            $      60,000
DOCUMENTATION                                        Incl.                    Incl.
INSTALLATION TEST EQUIP.                               N/A            $     125,000
RF AUDIT                                               N/A         0  $   1,503,250
RS&R                                           $ 3,200,000         0  $   5,200,000
ONGOING TECHNICAL SUPPORT                            Incl.                    Incl.
 (1-800 NUMBER)
SYSTEM INTEGRATION
OTA*                                                 Incl.                    Incl.
NEW MARKET INCENTIVE*                                                ($  26,178,500)
                                     -----------------------------------------------
TOTAL                                          $36,136,833            $ 261,788,367
                                     ===============================================
- ------------------------------------------------------------------------------------
*First Market=$2m.
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                         TELECORP
                                                                      PRICING SUMMARY
                                                                     Total all Missouri
- ---------------------------------------------------------------------------------------------------------------------------------
                                    1998                         1999                     2000                     2001
Component                   QUANTITY    PRICE           QUANTITY    PRICE        QUANTITY    PRICE        QUANTITY    PRICE
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                         <C>         <C>             <C>         <C>          <C>         <C>          <C>         <C>
TYPE I                            15    $   2,419,140         15    $ 2,419,140        10    $ 1,250,000         5    $   625,000
TYPE I GROWTH                           $           0          8    $   352,000         8    $   352,000         5    $   220,000
TYPE II                           15    $   2,038,740         15    $ 2,038,740         5    $   575,000         5    $   575,000
TYPE III                          20    $   3,679,520          5    $   919,880         5    $   725,000         0    $         0
BTS ENG. & INSTALL.               50    $     353,375         35    $   291,613        20            N/A        10            N/A
BTS OPTIMIZATION                  50            Incl.         35                       20                       10
BTS TRANSPORT & DELIVERY          50    $      85,000         35    $    59,500        20    $    34,000        10    $    17,000
EXPANSION RADIOS                  25    $     320,625        100    $ 1,218,400       100    $   850,000       100    $   780,000
MSC
  5 ESS                            1    $           0               $         0              $    10,037              $    35,489
  ACCESS MANAGER                   1    $           0               $         0              $   256,467              $    62,646
OPTIONAL SOFTWARE                       $   4,000,000               $    90,240              $   203,041              $   328,652
MSC B&I                                 $     486,880               $    22,000              $    61,000              $    38,000
MSC POWER with Backup                   $     185,000               $         0              $    30,000              $    15,000
PROJECT MGMT                            $     180,000               $         0              $         0              $         0
BTS SPARES                              $      93,657               $     5,000              $     5,000              $     5,000
MSC SPARES                              $     391,435               $         0              $         0              $         0
ANNUAL BTS FEE                    50    $           0         35    $         0        20    $   117,300        10    $   144,900
ANNUAL MSC FEE                     1    $           0          1    $         0         1    $   288,000         1    $   288,000
NETWORK MGMT
  AUTOPACE
  NOC 1
  BILLDATS
TRAINING                                        Incl.                     Incl.              $     4,000              $     4,000
DOCUMENTATION                                   Incl.                     Incl.                    Incl.                    Incl.
INSTALLATION TEST EQUIP.                $       5,000                     Incl.              $    20,000                      N/A
RF AUDIT                                $     310,000                       N/A                      N/A                      N/A
RS&R                                                                                                                  $   400,000
ONGOING TECHNICAL SUPPORT                       Incl.                     Incl.                    Incl.                    Incl.
(1-800 NUMBER)
OTA*                                            Incl.                     Incl.                    Incl.                    Incl.
NEW MARKET INCENTIVE*
                                          ($2,000,000)
                            -----------------------------------------------------------------------------------------------------
TOTAL                                   $  12,548,372               $ 7,416,513              $ 4,780,845              $ 3,538,687
                            =====================================================================================================
- ---------------------------------------------------------------------------------------------------------------------------------

<CAPTION>
- -----------------------------------------------------------------------------
                                        2002                   TOTAL
Component                        QUANTITY  PRICE         QUANTITY  PRICE
- -----------------------------------------------------------------------------
<S>                              <C>       <C>           <C>       <C>
TYPE I                                  5  $   625,000      50  $   7,338,280
TYPE I GROWTH                           2  $    88,000      23  $   1,012,000
TYPE II                                 0  $         0      40  $   5,227,480
TYPE III                                0  $         0      30  $   5,324,400
BTS ENG. & INSTALL.                     5          N/A     665  $     644,988
BTS OPTIMIZATION                        5                  120
BTS TRANSPORT & DELIVERY                5  $     8,500     120  $     204,000
EXPANSION RADIOS                      100  $   750,000     425  $   3,919,025
MSC
  5 ESS                                    $   223,707       1  $     269,233
  ACCESS MANAGER                           $   176,808       1  $     495,921
OPTIONAL SOFTWARE                          $   469,623       0  $   5,091,556
MSC B&I                                    $    33,600       0  $     641,480
MSC POWER with Backup                      $    12,000       0  $     242,000
PROJECT MGMT                               $         0       0  $     180,000
BTS SPARES                                 $     5,000       0  $     113,657
MSC SPARES                                 $         0       0  $     391,435
ANNUAL BTS FEE                          5  $   158,700     120  $     420,900
ANNUAL MSC FEE                          1  $   288,000       1  $     864,000
NETWORK MGMT
  AUTOPACE
  NOC 1
  BILLDATS
TRAINING                                   $     4,000          $      12,000
DOCUMENTATION                                    Incl.                  Incl.
INSTALLATION TEST EQUIP.                           N/A          $      25,000
RF AUDIT                                           N/A       0  $     310,000
RS&R                                       $   640,000       0  $   1,040,000
ONGOING TECHNICAL SUPPORT                        Incl.                  Incl.
(1-800 NUMBER)
OTA*                                             Incl.                  Incl.
NEW MARKET INCENTIVE*                                          ($   2,000,000)
                                 --------------------------------------------
TOTAL                                      $ 3,482,938          $  31,767,354
                                 ============================================
- -----------------------------------------------------------------------------
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------------------------
                                                                      TELECORP
                                                                   PRICING SUMMARY
                                                                  Total New Orleans
- --------------------------------------------------------------------------------------------------------------------------
                                          1998                             1999                           2000
Component                       QUANTITY        PRICE            QUANTITY        PRICE          QUANTITY        PRICE
- --------------------------------------------------------------------------------------------------------------------------
<S>                             <C>             <C>              <C>             <C>            <C>             <C>
TYPE I                                 0        $          0            0        $         0          15        $1,875,000
TYPE I GROWTH                                   $          0            0        $         0           0        $        0
TYPE II                                0        $          0           10        $ 1,359,160          10        $1,150,000
TYPE III                             110        $ 19,896,860           40        $ 7,245,540          15        $2,175,000
BTS BNG. & INSTALL.                  110        $    840,125           50        $   372,375          40               N/A
FILTER REPLACEMENT E&I                          $     46,750                     $    68,000
BTS OPTIMIZATION                     110               Incl.           50                             40
BTS TRANSPORT & DELIVERY             110        $    187,000           50        $    85,000          40        $   68,000
EXPANSION RADIOS                     710        $    641,250          740        $ 6,092,000           0        $        0
MSC
  5 ESS                                1        $          0                     $         0                    $  412,312
  ACCESS MANAGER                       1        $          0                     $         0                    $  664,620
OPTIONAL SOFTWARE                               $  4,000,000                     $    90,240                    $  203,041
MSC B&I                                         $    486,880                     $    22,000                    $   61,000
MSC POWER with Backup                           $    185,000                     $         0                    $   30,000
PROJECT MGMT                                    $    180,000                     $         0                    $        0
BTS SPARES                                      $     93,657                     $     5,000                    $    5,000
MSC SPARES                                      $    391,435                     $         0                    $        0
ANNUAL BTS FEE                       110        $          0           50        $         0          40        $  220,800
ANNUAL MSC FEE                         1        $          0            1        $         0           1        $  288,000
NETWORK MGMT
  AUTOPACE
  NOC 1
  BILLDATS
TRAINING                                               Incl.                           Incl.                    $    4,000
DOCUMENTATION                                          Incl.                           Incl.                         Incl.
INSTALLATION TEST EQUIP.                        $      5,000                           Incl.                    $   20,000
RF AUDIT                                        $    310,000                             N/A                           N/A
RS&R
ONGOING TECHNICAL SUPPORT                              Incl.                           Incl.                         Incl.
(1-800 NUMBER)
OTA*                                                   Incl.                           Incl.                         Incl.
NEW MARKET INCENTIVE*
                                               ($  3,000,000)
                                ------------------------------------------------------------------------------------------
TOTAL                                           $ 24,263,957                     $18,339,316                    $7,176,773
                                ==========================================================================================
- --------------------------------------------------------------------------------------------------------------------------

<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------
                                           2001                          2002                          TOTAL
Component                         QUANTITY      PRICE           QUANTITY      PRICE           QUANTITY      PRICE
- -----------------------------------------------------------------------------------------------------------------------
<S>                               <C>           <C>             <C>           <C>             <C>           <C>
TYPE I                                  15      $1,875,000            10      $1,250,000            40      $ 5,000,000
TYPE I GROWTH                            8      $  352,000             8      $  352,000            16      $   704,000
TYPE II                                  5      $  575,000             5      $  575,000            30      $ 3,659,160
TYPE III                                10      $1,450,000            10      $1,450,000           185      $32,217,400
BTS BNG. & INSTALL.                     30             N/A            25             N/A           665      $ 1,212,500
FILTER REPLACEMENT E&I
BTS OPTIMIZATION                        30                            25                           255
BTS TRANSPORT & DELIVERY                30      $   51,000            25      $   42,500           255      $   433,500
EXPANSION RADIOS                       100      $  780,000           500      $3,750,000         2,050      $11,263,250
MSC
  5 ESS                                         $   55,206                    $  317,987             1      $   785,505
  ACCESS MANAGER                                $  326,268                    $  245,337             1      $ 1,236,225
OPTIONAL SOFTWARE                               $  328,652                    $  469,623             0      $ 5,091,556
MSC B&I                                         $   38,000                    $   33,600             0      $   641,480
MSC POWER with Backup                           $   15,000                    $   12,000             0      $   242,000
PROJECT MGMT                                    $        0                    $        0             0      $   180,000
BTS SPARES                                      $    5,000                    $    5,000             0      $   113,657
MSC SPARES                                      $        0                    $        0             0      $   391,435
ANNUAL BTS FEE                          30      $  276,000            25      $  317,400           255      $   814,200
ANNUAL MSC FEE                           1      $  288,000             1      $  288,000             1      $   864,000
NETWORK MGMT
  AUTOPACE
  NOC 1
  BILLDATS
TRAINING                                        $    4,000                    $    4,000                    $    12,000
DOCUMENTATION                                        Incl.                         Incl.                          Incl.
INSTALLATION TEST EQUIP.                               N/A                           N/A                    $    25,000
RF AUDIT                                               N/A                           N/A             0      $   310,000
RS&R                                            $  400,000                    $  640,000             0      $ 1,040,000
ONGOING TECHNICAL SUPPORT                            Incl.                         Incl.                          Incl.
(1-800 NUMBER)
OTA*                                                 Incl.                         Incl.                          Incl.
NEW MARKET INCENTIVE*                                                                                      ($ 3,000,000)
                                  -------------------------------------------------------------------------------------
TOTAL                                           $4,819,126                    $9,752,447                    $63,234,868
                                  =====================================================================================
- -----------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------
                                                             TELECORP
                                                          PRICING SUMMARY
                                                         Total Little Rock
- --------------------------------------------------------------------------------------------------------------------------------
                                            1998                       1999                     2000                    2001
Component                     QUANTITY      PRICE        QUANTITY      PRICE      QUANTITY      PRICE     QUANTITY      PRICE
- --------------------------------------------------------------------------------------------------------------------------------
<S>                           <C>         <C>            <C>         <C>          <C>         <C>         <C>         <C>
TYPE I                                    $          0          0    $         0        10    $1,250,000        10    $1,250,000
TYPE I GROWTH                             $          0          0    $         0         0    $        0         0    $        0
TYPE II                              0    $          0         10    $ 1,359,160         5    $  575,000         5    $  575,000
TYPE III                            80    $ 14,407,580         30    $ 5,208,780         5    $  725,000         5    $  725,000
BTS ENG. & INSTALL.                 80    $    611,000         40    $   296,000        20           N/A        20           N/A
FILTER REPLACEMENT E&I                                               $    51,000
BTS OPTIMIZATION                    80           Incl.         40                       20                      20
BTS TRANSPORT & DELIVERY            80    $    136,000         40    $    68,000        20    $   34,000        20    $   34,000
EXPANSION RADIOS                    50    $    641,250        350    $ 4,264,400       350    $2,975,000       350    $2,730,000
MSC
  5 ESS                              1    $          0               $         0              $   13,622              $  239,480
  ACCESS MANAGER                     1    $          0               $         0              $  335,649              $  186,825
OPTIONAL SOFTWARE                         $  4,000,000               $    90,240              $  203,041              $  328,652
MSC B&I                                   $    486,880               $    22,000              $   61,000              $   38,000
MSC POWER with Backup                     $    185,000               $         0              $   30,000              $   15,000
PROJECT MGMT                              $    180,000               $         0              $        0              $        0
BTS SPARES                                $     93,657               $     5,000              $    5,000              $    5,000
MSC SPARES                                $    391,435               $         0              $        0              $        0
ANNUAL BTS FEE                      80    $          0         40    $         0        20    $  165,600        20    $  193,200
ANNUAL MSC FEE                       1    $          0          1    $         0         1    $  288,000         1    $  288,000
NETWORK MGMT
  AUTOPACE
  NOC 1
  BILLDATS
TRAINING                                         Incl.                     Incl.              $    4,000              $    4,000
DOCUMENTATION                                    Incl.                     Incl.                   Incl.                   Incl.
INSTALLATION TEST EQUIP.                  $      5,000                     Incl.              $   20,000                     N/A
RF AUDIT                                  $    310,000                       N/A                     N/A                     N/A
RS&R                                                                                                                  $  400,000
ONGOING TECHNICAL SUPPORT                        Incl.                     Incl.                   Incl.                   Incl.
(1-800 NUMBER)
OTA*                                             Incl.                     Incl.                   Incl.                   Incl.
NEW MARKET INCENTIVE*                      ($4,000,000)
- --------------------------------------------------------------------------------------------------------------------------------
TOTAL                                     $ 17,447,802               $11,364,580              $6,684,912              $7,012,157
                              ==================================================================================================
- --------------------------------------------------------------------------------------------------------------------------------

<CAPTION>
- -------------------------------------------------------------------------------


- -------------------------------------------------------------------------------
                                            2002                    TOTAL
Component                     QUANTITY      PRICE      QUANTITY     PRICE
- -------------------------------------------------------------------------------
<S>                           <C>          <C>         <C>         <C>
TYPE I                               5     $  625,000        25    $  3,125,000
TYPE I GROWTH                        5     $  220,000         5    $    220,000
TYPE II                              5     $  575,000        25    $  3,084,160
TYPE III                             5     $  725,000       125    $ 21,791,360
BTS BNG. & INSTALL.                 15            N/A       665    $    907,000
FILTER REPLACEMENT E&I
BTS OPTIMIZATION                    15                      175
BTS TRANSPORT & DELIVERY            15     $   25,500       175    $    297,500
EXPANSION RADIOS                   350     $2,625,000     1,450    $ 13,235,650
MSC
  5 ESS                                    $   17,565         1    $    270,667
  ACCESS MANAGER                           $  163,611         1    $    686,085
OPTIONAL SOFTWARE                          $  469,623         0    $  5,091,556
MSC B&I                                    $   33,600         0    $    641,480
MSC POWER with Backup                      $   12,000         0    $    242,000
PROJECT MGMT                               $        0         0    $    180,000
BTS SPARES                                 $    5,000         0    $    113,657
MSC SPARES                                 $        0         0    $    391,435
ANNUAL BTS FEE                      15     $  220,800       175    $    579,600
ANNUAL MSC FEE                       1     $  288,000         1    $    864,000
NETWORK MGMT
  AUTOPACE
  NOC 1
  BILLDATS
TRAINING                                   $    4,000              $     12,000
DOCUMENTATION                                   Incl.                     Incl.
INSTALLATION TEST EQUIP.                          N/A              $     25,000
RF AUDIT                                          N/A         0    $    310,000
RS&R                                       $  640,000         0    $  1,040,000
ONGOING TECHNICAL SUPPORT                       Incl.                     Incl.
(1-800 NUMBER)
OTA*                                            Incl.                     Incl.
NEW MARKET INCENTIVE*                                               ($4,000,000)
                              -------------------------------------------------
TOTAL                                      $6,649,699              $ 49,108,150
                              =================================================
- -------------------------------------------------------------------------------
</TABLE>

<PAGE>

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------------
                                                                              TELECORP
                                                                          PRICING SUMMARY
                                                                           Total Memphis
- -------------------------------------------------------------------------------------------------------------------------------
                                          1998                       1999                     2000                     2001
Component                   QUANTITY      PRICE        QUANTITY      PRICE      QUANTITY      PRICE      QUANTITY      PRICE
- -------------------------------------------------------------------------------------------------------------------------------
<S>                         <C>         <C>            <C>         <C>          <C>         <C>          <C>         <C>
TYPE I                             0    $          0          0    $         0        15    $ 1,875,000        10    $1,250,000
TYPE I GROWTH                           $          0          0    $         0         0    $         0         0    $        0
TYPE II                            0    $          0         10    $ 1,359,160        10    $ 1,150,000         5    $  575,000
TYPE III                         100    $ 18,087,100         20    $ 3,472,520        15    $ 2,175,000        10    $1,450,000
BTS BNG. & INSTALL.              100    $    763,750         30    $   219,625        40            N/A        25           N/A
FILTER                                                             $    59,500
REPLACEMENT E&I
BTS OPTIMIZATION                 100           Incl.         30                       40                       25
BTS TRANSPORT & DELIVERY         100    $    170,000         30    $    51,000        40    $    68,000        25    $   42,500
EXPANSION RADIOS                  50    $    641,250        500    $ 6,092,000       500    $ 4,250,000       500    $3,900,000
MSC
  5 ESS                            1    $          0               $         0              $   256,329              $  340,257
  ACCESS MANAGER                   1    $          0               $         0              $   561,588              $  504,348
OPTIONAL                                $  4,000,000               $    90,240              $   203,041              $  328,652
SOFTWARE
MSC B&I                                 $    486,880               $    22,000              $    61,000              $   38,000
MSC POWER with Backup                   $    185,000               $         0              $    30,000              $   15,000
PROJECT MGMT                            $    180,000               $         0              $         0              $        0
BTS SPARES                              $     93,657               $     5,000              $     5,000              $    5,000
MSC SPARES                              $    391,435               $         0              $         0              $        0
ANNUAL BTS FEE                   100    $          0         30    $         0        40    $   179,400        25    $  234,600
ANNUAL MSC FEE                     1    $          0          1    $         0         1    $   288,000         1    $  288,000
NETWORK MGMT
  AUTOPACE
  NOC 1
  BILLDATS
TRAINING                                       Incl.                     Incl.              $     4,000              $    4,000
DOCUMENTATION                                  Incl.                     Incl.                    Incl.                   Incl.
INSTALLATION                            $      5,000                     Incl.              $    20,000                     N/A
TEST EQUIP.
RF AUDIT                                $    310,000                       N/A                      N/A                     N/A
RS&R                                                                                                                 $  400,000
ONGOING TECHNICAL SUPPORT                      Incl.                     Incl.                    Incl.                   Incl.
(1-800 NUMBER)
OTA*                                           Incl.                     Incl.                    Incl.                   Incl.
NEW MARKET
INCENTIVE*                               ($6,000,000)
                            ---------------------------------------------------------------------------------------------------
TOTAL                                   $ 19,314,072               $11,371,045              $11,126,358              $9,375,357
                            ===================================================================================================
- -------------------------------------------------------------------------------------------------------------------------------

<CAPTION>
- -----------------------------------------------------------------------------


- -----------------------------------------------------------------------------
                                            2002                    TOTAL
Component                     QUANTITY      PRICE     QUANTITY      PRICE
- -----------------------------------------------------------------------------
<S>                           <C>         <C>         <C>         <C>
TYPE I                              10    $1,250,000        35    $ 4,375,000
TYPE I GROWTH                        5    $  220,000         5    $   220,000
TYPE II                              5    $  575,000        30    $ 3,659,160
TYPE III                             5    $  725,000       150    $25,909,620
BTS BNG. & INSTALL.                 20           N/A       665    $   983,375
FILTER
REPLACEMENT E&I
BTS OPTIMIZATION                    20                     215
BTS TRANSPORT & DELIVERY            20    $   34,000       215    $   365,500
EXPANSION RADIOS                   500    $3,750,000     2,050    $18,633,250
MSC
  5 ESS                                   $   24,377         1    $   620,963
  ACCESS MANAGER                          $  241,203         1    $ 1,307,139
OPTIONAL                                  $  469,623         0    $ 5,091,556
SOFTWARE
MSC B&I                                   $   33,000         0    $   641,480
MSC POWER with Backup                     $   12,000         0    $   242,000
PROJECT MGMT                              $        0         0    $   180,000
BTS SPARES                                $    5,000         0    $   113,657
MSC SPARES                                $        0         0    $   391,435
ANNUAL BTS FEE                      20    $  269,100       215    $   683,100
ANNUAL MSC FEE                       1    $  288,000         1    $   864,000
NETWORK MGMT
  AUTOPACE
  NOC 1
  BILLDATS
TRAINING                                  $    4,000              $    12,000
DOCUMENTATION                                  Incl.                    Incl.
INSTALLATION                                     N/A              $    25,000
TEST EQUIP.
RF AUDIT                                         N/A         0    $   310,000
RS&R                                      $  640,000         0    $ 1,040,000
ONGOING TECHNICAL SUPPORT                      Incl.                    Incl.
(1-800 NUMBER)
OTA*                                           Incl.                    Incl.
NEW MARKET
INCENTIVE*                                                        ($6,000,000)
                              -----------------------------------------------
TOTAL                                     $8,540,903              $59,668,235
                              ===============================================
- -----------------------------------------------------------------------------
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------------------------
                                   TELECORP
                                PRICING SUMMARY
                               Total New England
- --------------------------------------------------------------------------------------------------------------------------

                                1998                           1999                    2000                     2001
Component              QUANTITY     PRICE              QUANTITY   PRICE        QUANTITY     PRICE        QUANTITY   PRICE
- --------------------------------------------------------------------------------------------------------------------------
<S>                     <C>         <C>                <C>        <C>          <C>          <C>          <C>        <C>
TYPE I                        30       $  4,838,280      10   $ 1,612,760        10     $ 1,250,000        10   $1,250,000
TYPE I GROWTH                          $          0      15   $   660,000         5     $   220,000         5   $  220,000
TYPE II                        0       $          0      10   $ 1,359,760        10     $ 1,150,000         5   $  575,000
TYPE III                     100       $ 18,397,600      10   $ 1,839,760        10     $ 1,450,000         5   $  725,000
BTS BNG. &
INSTALL.                     130       $    964,375      30   $   309,125        30             N/A        20          N/A
BTS OPTIMIZATION             130              Incl.      30                      30                        20
BTS TRANSPORT &
DELIVERY                     130       $    221,000      30   $    51,000        30     $    51,000        20   $   34,000
EXPANSION RADIOS              50       $    641,250     500   $ 6,092,000       500     $ 4,250,000       500   $3,900,000
MSC
  5 ESS                        1       $          0           $         0               $   419,481             $   78,507
  ACCESS MANAGER               1       $          0           $         0               $   735,534             $  202,089
OPTIONAL
SOFTWARE                               $  4,000,000           $    90,240               $   203,041             $  328,652
MSC B&I                                $    486,880           $    22,000               $    61,000             $   38,000
MSC POWER with
Backup                                 $    185,000           $         0               $    30,000             $   15,000
PROJECT MGMT                           $    180,000           $         0               $         0             $        0
BTS SPARES                             $     93,657           $     5,000               $     5,000             $    5,000
MSC SPARES                             $    391,435           $         0               $         0             $        0
ANNUAL BTS FEE               130       $          0      30   $         0        30     $   220,800        20   $  262,200
ANNUAL MSC FEE                 1       $          0       1   $         0         1     $   288,000         1   $  288,000
NETWORK MGMT
  AUTOPACE
  NOC 1
  BILLDATS
TRAINING                                      Incl.                 Incl.               $     4,000             $    4,000
DOCUMENTATION                                 Incl.                 Incl.                     Incl.                  Incl.
INSTALLATION
TEST EQUIP.                            $      5,000                 Incl.               $    20.000                    N/A
RF AUDIT                               $    310,000                   N/A                       N/A                    N/A
RS&R                                                                                                             $ 400,000
ONGOING
TECHNICAL
SUPPORT                                       Incl.                 Incl.                     Incl.                  Incl.
(1-800 NUMBER)
 OTA*                                         Incl.                 Incl.                     Incl.                  Incl.
NEW MARKET
INCENTIVE*                            ($  9,000,000)
                      ----------------------------------------------------------------------------------------------------
TOTAL                                  $ 21,714,477           $12,041,645               $10,357,856             $8,325,448
                      ====================================================================================================

- --------------------------------------------------------------------------------------------------------------------------

<CAPTION>
- ---------------------------------------------------------------------
                                   TELECORP
                                PRICING SUMMARY
                               Total New England
- ---------------------------------------------------------------------
                         2002                        TOTAL
Component          QUANTITY     PRICE          QUANTITY    PRICE
- ---------------------------------------------------------------------
<C>                <C>          <C>            <C>       <C>
TYPE I                     5       $  625,000        65   $ 9,576,040
TYPE I GROWTH              5       $  220,000        30   $ 1,320,000
TYPE II                    5       $  575,000        30   $ 3,659,760
TYPE III                   5       $  725,000       130   $23,137,360
BTS BNG. & INSTALL.       15              N/A       665   $ 1,273,500
BTS OPTIMIZATION          15                        225
BTS TRANSPORT &
DELIVERY                  15       $   25,500       225   $   382,500
EXPANSION RADIOS         500       $3,750,000     2,050   $18,633,250
MSC
  5 ESS                            $   24,377         1   $   522,365
  ACCESS MANAGER                   $  182,691         1   $ 1,120,314
OPTIONAL
SOFTWARE                           $  469,623         0   $ 5,091,556
MSC B&I                            $   33,600         0   $   641,480
MSC POWER with
Backup                             $   12,000         0   $   242,000
PROJECT MGMT                       $        0         0   $   180,000
BTS SPARES                         $    5,000         0   $   113,657
MSC SPARES                         $        0         0   $   391,435
ANNUAL BTS FEE                     $  289,800       225   $   772,800
ANNUAL MSC FEE                     $  288,000         1   $   864,000
NETWORK MGMT
  AUTOPACE
  NOC 1
  BILLDATS
TRAINING                           $    4,000             $    12,000
DOCUMENTATION                           Incl.                   Incl.
INSTALLATION
TEST EQUIP.                               N/A             $    25,000
RF AUDIT                                  N/A         0   $   310,000
RS&R                               $  640,000         0   $ 1,040,000
ONGOING
TECHNICAL
SUPPORT                                 Incl.                   Incl.
(1-800 NUMBER)
OTA*                                    Incl.                   Incl.
NEW MARKET
INCENTIVE*                                               ($9,000,000)
                   --------------------------------------------------
TOTAL                              $7,869,591             $60,309,017
                   ==================================================
- ---------------------------------------------------------------------
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------

BASE STATION PACKAGE

- ----------------------------------------------------------------------------------------------------
<S>                              <C>                    <C>                    <C>
                                 TYPE I                 TYPE II               TYPE III
Base Package                     $126,000               $105,000               $146,700
Installation Kit                 $  4,269               $  4,269               $  4,269
Outdoor Cabinet(s)               $  2,000               $  2,000               $  4,000
Power                            $ 15,927               $ 15,927               $ 15,927
MAU/FRU                          $  7,860               $  5,240               $  7,860
HP ICLA                          $  5,220               $  3,480               $  5,220


Total                            $161,276               $135,916               $183,976
                               =====================================================================
- ----------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

                                 ATTACHMENT C
<PAGE>

                             RESPONSIBILITY MATRIX

                     Functional Division of Responsibility
<PAGE>

RF ENGINEERING

<TABLE>
<CAPTION>
No.                                                                         Lucent      TeleCorp
- ---                                                                       ----------  ------------
<S>                                                                       <C>         <C>
1.     Provide specifications for TDMA guard isolation requirements       X
2.     Prepare demand forecast for first 2 years of operation                         X
3.     Develop coverage objectives                                                    X
       Prepare coverage plan to meet objectives
4.     Initial CE4 model calibration and optimization                     X
5.     Preliminary TDMA RF design                                                     X
6.     RF Evaluation                                                      X
7.     Provide Link Budget and Design Criteria - TeleCorp                 X
8.     Review and Accept Link Budget and Design Criteria                              X
9.     Identify, qualify and secure real estate for radio base station    X
       sites
10.    On a per sector basis, determine the following demand and radio
       parameters:
       (a)    Number of voice channels/EPRUs per sector                               X
       (b)    Effective radiated power                                                X
       (c)    Recommend antenna radiation center above ground level                   X
       (d)    Recommend initial sector/OMNI antenna and orientations                  X
              Maximum antenna feeder loss acceptable
       (e)    Initial downtilt angle                                                  X
       (f)    Site name, site code numbers                                            X
       (g)    Create base station translations based on TeleCorp input                X
              To load into the MSC - Site Specific Stuff - Neighbor Lists
11.    Frequency coordination if required                                             X
12.    Perform field site visits to specify antenna mounting locations                X
       and antenna downtilts
13.    Provide 2 year subscriber and demand information                               X
14.    Generate a 2 year equipment growth plan based on subscriber and    X
       demand information
</TABLE>
<PAGE>

<TABLE>
<S>                                                                     <C>         <C>
15.  Spectrum Clearing                                                              X
16.  Hand-off and performance parameter plan                            X
17.  Provide detail reporting of progress on mutually agreed upon       X
     deliverables
</TABLE>
<PAGE>

OPTIMIZATION AND SYSTEMS PERFORMANCE

<TABLE>
<CAPTION>
No.                                                                               Lucent       TeleCorp
- ---                                                                             -----------  -------------
<S>                                                                             <C>          <C>
1.  Perform system optimization in accordance with Lucent document              X
    "Methods and Procedures for PCS TDMA RF Cluster Testing &
    Optimization" Handbook 603, Issue 2.
2.  Provide personnel, vehicles, software (data collection and post             X
    processing) and equipment (including positioning equipment to perform
    system optimization
3.  Participate in Optimization                                                 X            X
4.  Implement power reductions antenna downtilts and antenna                                 X
    re-orientations
5.  Detailed reporting and work order tracking of the optimization              X
    process on a site by site basis.  Reports to include maps and
    histograms for coverage evaluations, dropped calls, blocked calls,
    and other performance parameters as reasonable requested by owner
6.  Provide access to sites for Lucent to conduct optimization activities                    X
    and information regarding access restrictions
</TABLE>
<PAGE>

BASE STATION SITE CONSTRUCTION

<TABLE>
<CAPTION>
No.                                                                               Lucent       TeleCorp
- ---                                                                             -----------  -------------
<S>                                                                             <C>          <C>
 1.  Provide specific technical requirements for base station design to         X
     Owner (based on Radio Network Design)
 2.  Immediate formal notification of product design changes                    X
 3.  Architectural/Engineering design for site                                               X
 4.  Use Layout drawings to prepare Bill of Material.  Furnish Bill of                       X
     Material to Owner
 5.  Ensure that ground provide to minicell meets National Electrical Code                   X
     Article 250
 6.  Preparation of tender document for site construction bids
 7.  Application for building permits                                                        X
 8.  Evaluation of construction bids                                                         X
 9.  Negotiations with bidders                                                               X
10.  Placing order to contractors                                                            X
11.  Furnish estimated "site ready for installation" date to Vendor                          X
12.  Schedule installation                                                      X
13.  Surveyor verification of initial antenna orientations                                   X
13.B Provide Site Ready Check List                                              X
14.  Check of site ready for installation                                                    X
15.  Develop punch list of outstanding civil issues                                          X
</TABLE>
<PAGE>

<TABLE>
<S>                                                                             <C>          <C>
16.  Supervision of site construction                                                        X
17.  Auditing contractor invoices                                                            X
17.B Review of Construction Specs                                               X
18.  Acceptance of completed construction                                                    X
19.  Owner representative at site-ready inspection                                           X
20.  Perform main feed line and antenna VSWR sweeps                                          X
21.  Provide and Retrofit Existing Sites with Duplexers once GA                 X
22.  After GA date, Install Vendor Provided DMAU                                             X
</TABLE>
<PAGE>

SITE INSTALLATION/INTEGRATION

<TABLE>
<CAPTION>
No.                                                                               Lucent       TeleCorp
- ---                                                                             -----------  -------------
<S>                                                                             <C>          <C>
1.  Delivery to BTS including transportation, al lifting and hoisting,          X
    associated permits and coordination with landlord
2.  Perform physical installation per the site cabinet installation             X
    manual Lucent 401-703-300, Issue 1 or latest available
3.  Arrange for site access during cell install and testing                                  X
4.  Installation and test T1 facilities up to BTS platform (provide and                      X
    insert loop around plugs as required)
4B  Install DFRU                                                                X
5.  Connection of T1 to BTS cabinet                                             X
6.  Teleco connection for De-mark to CSI                                        X
7.  Install AC services connections to power cabinet and perform power          X
    installation to primary and growth cabinets
8.  Install tested coaxial jumpers for main feed line to cabinet RF             X
    interface connection.  Tag jumpers with proper color code as defined
    by site plan
9.  Drill/bolt to platform, concrete pads, galvanize drill holes where          X
    needed
9A  Define Alarm Configuration (normally open/closed)                           X            X
10. Connect and test TeleCorp-provided external alarms (tower lights, AC,       X
    Door, etc.)
11. Make all cabinet ground connections and ensure compliance to industry       X
    standard
12. Evaluate and approve physical installation (Per Agreed to Punch                          X
    list/Check list)
</TABLE>
<PAGE>

<TABLE>
<S>                                                                              <C>          <C>
13.    Perform PCS TDMA power up and test per Lucent installation                X
       engineering handbook 223 or latest issue

14.    Perform cell boot from switch                                             X

15.    Perform cell diagnostic session from switch and provide a hard copy       X
       of the session

16.    Provide switch cell diagnostics, and HEH reports                          X

17.    Review switch cell diagnostics, and HEH reports                                        X

18.    Source and replace defective equipment during cell install and testing    X

19.    Provide ongoing defective component list, via cell log, for each cell     X
       up to system acceptance

20.    Verify all components working properly with switch                        X

21.    BTS and component level tracking equipment (For Warranty and CN           X
       Tracking Purposes)

22.    Creation of BTS acceptable test plan                                      X

23.    Approval of BTS acceptance test plan                                      X            X

24.    Perform BTS acceptance test plan                                          X

25.    Acceptance of BTS test results                                                         X

26.    Create punchlist                                                          X            X

27.    Concurrent with final system acceptance, bring all BTS components and     X
       the BTS to the current standard BTS configuration that is
       operationally equivalent
</TABLE>
<PAGE>

CIVIL CONSTRUCTION OF SWITCH FACILITIES

<TABLE>
<CAPTION>
No.                                                                            Lucent       TeleCorp
- ---                                                                            ------       --------
<S>                                                                            <C>          <C>
1.     Determine which type of air cooling system will be installed (Lucent    X            X
       advises only based upon equipment requirements)

2.     Determine overhead of floor cabling                                     X            X

3.     Determine raised floor or not                                           X            X

4.     Definition of technical system requirements e.g. floor space, floor     X
       loading, heat load, DC amperage, A/C requirement.  Provide to owner

5.     Definition of suitable area                                             X

6.     Evaluate possibilities and select the best one                                       X

7.     Vendor pre-survey of selected location with Owner                       X

8.     Negotiate with site owners                                                           X

9.     Finalize lease contract                                                              X

10.    Civil engineering design for MSC locations                              X

11.    Approve completed layout plan, including transmission equipment area    X            X

12.    Define requirements for Lucent equipment grounding to conform with      X
       National Electrical Code Article 250

13.    Install building ground system                                                       X

14.    Install building and equipment ground system                            X            X

15.    Detailed installation design completed for MSC/ECP, including           X
       switching system demark for T1, OM&P, data circuits, modems, I/O,
       etc., to be provided on CAD if available

16.    Preparation of tender documents for construction bids for MSC                        X
       locations
</TABLE>
<PAGE>

<TABLE>
<S>                                                                            <C>          <C>
17.    Evaluation of bids                                                                   X

18.    Negotiations with bidders                                                            X

19.    Selection of sub-contractors                                                         X

20.    Place orders to sub-contractors                                                      X

21.    Supervision of site construction                                                     X

22.    Auditing of contractor invoices                                                      X

23.    Review and advise on completed site construction                        X

24.    Acceptance of completed site construction                                            X

25.    Building ready inspection and acceptance with Owner                     X            X

26.    Security during construction                                                         X

27.    Install fire and security systems                                                    X

28.    Determine hours of reserve for emergency power                          X            X

29.    Determine fuel tank size                                                X            X

30.    Provide for shipment and temporary storage equipment (Does not have     X
       to be in market.  May be in Oklahoma City until your site is ready)

31.    Prepare schedule of building ready dates for equipment locations        X
</TABLE>
<PAGE>

SWITCH INSTALLATION

<TABLE>
<CAPTION>
No.                                                                            Lucent       TeleCorp
- ---                                                                            ------       --------
<S>                                                                            <C>          <C>
1.     Prepare market requirement questionnaire (database) e.g. cell plan,     X
       network plan, grade of service plan, transmission plan, numbering
       plan, routing plan, network synchronization plan, signaling plan,
       charging plan, services plan, operations and maintenance plan

2.     Answer market requirements questionnaire                                X

3.     Review market requirements answers and recommend changes or approve     X

4.     Input based AWS Feature Set                                             X

5.     Define exchange requirements data (exchange specific items of the                    X
       market requirements) for MSC/ECP, BTS, OM&P

6.     Complete ODA                                                            X

7.     Vocoder Relocation                                                      X

8.     Install and test all translations                                       X

9.     Approve translations                                                                 X

10.    Detailed switch design and dimensioning                                 X

11.    Provide erlang projections for switch dimensioning                                   X

12.    Provide floor layout based on TeleCorp Scale Floor Plan                 X

13.    Verification of structural, HVAC, power requirements for operation      X
</TABLE>
<PAGE>

<TABLE>
<S>                                                                            <C>          <C>
14.    Switch equipment delivery and install to Lucent provided DSX panel      X
       (Punch list for DSC by TeleCorp)

15.    Spares inventory to be provided on site                                 X

16.    Concurrent with, and as part of final acceptance, a full accounting     X
       of all equipment shipped, installed, and left as spares will be
       provided to TeleCorp

17.    Review and approval of all equipment listed by vendor under                          X
       accounting requirement

18.    Creation of MSC/ECP acceptance test plan                                X

19.    Approval of MSC/ECP acceptance test plan                                             X

20.    Perform final testing                                                   X

21.    Final acceptance of switch                                                           X

22.    Security during installation of switch, if deemed necessary             X            X

23.    Furnish installation tools, test equipment and supplies as required     X
       during installation

24.    Supply basic facilities, e.g. lights, power, water, sanitary,                        X
       telephone connection

25.    Engineer, design, furnish, and install DC power system                  X

26.    Approve DC power system design                                                       X

27.    Provide DC power system acceptance test plan                            X

28.    Review and approve DC power system acceptance and test plan                          X

29.    Perform DC power system acceptance and test plan                        X
</TABLE>
<PAGE>

ACCESS AND LEASED LINES

<TABLE>
<CAPTION>
No.                                                                            Lucent       TeleCorp
- ----                                                                           ------       --------
<S>                                                                            <C>          <C>
1.     Supply conversion formula or chart for calculating slots required for   X
       control and/or OSS functions for sector/OMNI cells, as a function of
       number of voice channels.  Specify any particular slot assignment
       constraints, e.g. control must always be on Ch. 16, and other
       limitations on connection of circuits if relevant to TDMA.

2.     Provide interface requirement, to Network Elements, for Lucent          X
       Equipment

3.     Obtain cost and schedule of supply of leased lines from Telco                        X
       providers

4.     Supply report to vendors with trunk and slot assignments on customer                 X
       side of DSX demark

5.     Use connectivity report to size MSC and BTS hardware and software.      X
       Review for equipment incompatibilities.  Return acknowledgement to
       Owner.  Discuss problem area with Owner.  Provide lead time
       requirements for circuits.

6.     Develop schedule of required in-service date for each circuit.  Enter                X
       order to Telco provider.  Follow up progress.  If facilities schedule
       cannot be met by Telco provider adjust schedule and notify vendors

7.     Obtain Telco provider requirements for equipment rooms, power,                       X
       standard connectors, levels, impedances, etc.

8.     Specify and supply appropriate lease line facilities                                 X

9.     Arrange access from Telco providers for installation of leased lines                 X

10.    Supply Owner with performance requirements for 1.5 Mb/s circuits        X
</TABLE>
<PAGE>

<TABLE>
<S>                                                                            <C>          <C>
11.    Approve access leased line performance criteria                                      X

12.    Provide leased lines and access circuits                                             X

13.    Perform short term (1 hour) bit error rate and other line testing                    X

14.    Review Telco provider requirement against equipment standard.  Advise   X
       Owner of problems or incompatibilities

15.    Design and furnish equipment room or space for Telco provider line                   X
       connections.  Copy layout to vendor

16.    Installation of equipment for Telco provider line connections                        X

17.    Furnish Telco provider lines up to Telco provider connector block                    X
       (Telco provider to furnish)

18.    Install cables, connectors blocks, and protectors (if required) from                 X
       network equipment to Owner supplied DDF and CSUs.  Tag with identity

19.    Design, furnish and install connection between the network equipment    X
       (MSC) and the point of connection (DSX).  Provide cross-connect
       elevation diagrams and record to Owner (TeleCorp have a Cross-Connect
       Plan)

20.    Supply and install all demark equipment at MSC, Includes i.e. DS1,      X
       DSX, V.35, RS232, DSX, patchmates, modem eliminators, and all other
       connection requirements on the vendor side of DSX demark

21.    Provide cross connects from vendor DSX demark to TeleCorp DSX demark                 X
</TABLE>
<PAGE>

ACCESS CIRCUITS (MSC-PSTN)

<TABLE>
<CAPTION>
No.                                                                            Lucent       TeleCorp
- ---                                                                            ------       --------
<S>                                                                            <C>          <C>
1.     Identify voice channel, signaling, and data service requirements by                  X
       MSC, by year

2.     Determine destination/origin of traffic                                              X

3.     Specify performance/reliability/connectivity requirements and           X
       standards for the network

4.     Obtain cost and schedule of supply of access lines from Telco                        X
       provider.  Negotiate charges and due dates

5.     Review MSC-PSTN Network Design                                          X

6.     Supply data to vendor's access configuration                                         X

7.     Use access data to size MSC hardware and software.  Review for          X
       equipment incompatibilities.  Discuss problem areas with Owner.
       Supply configuration reports to Owner

8.     Develop schedule of required in service dates for access circuits at                 X
       each MSC.  Enter order with Telco provider and follow up on progress.
       If facilities schedule cannot be met, adjust schedule and notify
       vendors

9.     Review Telco provider requirements against equipment standards.                      X
       Inform Owner of problems or incompatibilities

10.    Design equipment space for line connections                                          X

11.    Furnish equipment and copy of layout to customer                        X

12.    Specify and supply appropriate connecting facilities                                 X

13.    Arrange access for Telco provider installation                                       X

14.    Supply Owner with BER objectives and other line parameters necessary    X
       for guaranteed performance levels

15.    Perform short term (approx. 1 hour) BER and other line testing if                    X
       requested by Vendor.  Supply report to Vendor if problems are observed
</TABLE>
<PAGE>

<TABLE>
<S>                                                                            <C>          <C>
16.    Supply vendor with Telco provider power requirements                                 X

17.    Furnish battery power to Telco provider.  Incorporate Telco provider                 X
       battery and connection requirements in equipment order

18.    Furnish Telco provider lines up to Telco provider connector block                    X
       (Telco provider to finish)

19.    Install cables, connectors, blocks and protectors (if required), form   X
       network equipment to Telco provider connector block.  Tag cables and
       DDF with identify.  Design, furnish and install jumper connectors
       between the network equipment, and the Telco provider point of
       connection.  Provide cross-connect record to Owner.

20.    Design backhaul of transmission network                                              X

21.    Determine transmission equipment design on customer side of DSX demark               X

22.    Select transmission equipment vendors                                                X

23.    Negotiate prices, and obtain transmission equipment delivery                         X

24.    Design transmission room equipment layout                                            X

25.    Provide transmission room power requirements for dimensioning of DC                  X
       power plant

26.    Engineer DC power plant to support switch and transmission
       requirements
</TABLE>
<PAGE>

SYSTEM INTEGRATION

VENDOR PROVIDED EQUIPMENT

<TABLE>
<CAPTION>
No.                                                                             Lucent       TeleCorp
- ---                                                                             ------       --------
<S>                                                                             <C>          <C>
1.      Full integration of switches platform to
        AUC                                                                     X            X
        HLR                                                                     X            X
        VLR                                                                     X            X
        MSC                                                                     X            X
        SMS-SC                                                                  X            X
        STP                                                                     X            X
        Billing System                                                          X            X
        PSTN                                                                    X            X
        NOC1                                                                    X            X
        Autopace                                                                X            X
        Fraud System                                                            X            X
        ILR (GSM=IS41 Gateway)                                                  X            X
        OTA                                                                     X            X
        Voice Mail                                                              X            X
        BTS                                                                     X            X
        Vendor-supplied products                                                X            X
        Other AWS systems                                                       X            X
        Other roaming partners                                                  X            X
        NACN                                                                    X            X
        Customer Care                                                           X            X

2.      If interface doesn't presently exist, work with vendor on interface     X            X
        specs

3.      Prepare plan for testing of integration of Vendor equipment and         X            X
        provide to owner for review

4.      Review test plan, agree to changes, and approve                         X            X

5.      Perform integration tests of interfaces defined above                   X            X
</TABLE>
<PAGE>

<TABLE>
<S>                                                                             <C>          <C>
6.      Customer to be present during integration test                                       X

7.      Record results of tests and provide Owner                               X

8.      Review tests results and proceed as required                                         X
</TABLE>
<PAGE>

2.  Ensure participation of other vendors in integration Process.
<PAGE>

CUSTOMER CARE SYSTEM (INCLUDING BILLING SYSTEM)


<TABLE>
<CAPTION>
No.                                                                        Lucent         TeleCorp
- ------                                                                     ------         --------
<S>                                                                        <C>            <C>
1.   Define customer care and billing requirements                                        X

2.   Define requirements on interfaces to Vendor's equipment               X

3.   Acceptance testing of Lucent interfaces billing platform              X              X

4.   Review test plan, agree to changes and approve                                       X

5.   Perform interfaces tests according to test plan                       X

6.   Record test results and provide to Owner                              X

7.   Review and approve tests results and proceed as required
</TABLE>
<PAGE>

PCS TDMA TERMINALS (MAXIMUM 3 VENDORS)


<TABLE>
<CAPTION>
No.                                                                          Lucent       TeleCorp
- ---                                                                          ------       --------
<S>                                                                          <C>          <C>
1.   If Applicable, develop test plan for interface testing                  X            X

2.   If available, provide and terminal test data and results from           X
     Interoperability lab or field

3.   Review test plan, agree to changes and approve                                       X

4.   Supply third party terminals                                                         X

5.   Perform interface tests according to test plan                          X            X

6.   Record test results and provide to Owner                                X            X

7.   Review test results and proceed as required                                          X
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
No.                                                                                  Lucent         TeleCorp
- ---                                                                                  ------         --------
<S>                                                                                  <C>            <C>
1.   Perform vendor commissioning tests (equipment) and record results               X
     (Lucent equipment)

2.   Review vendor test results                                                                     X

3.   Prepare system acceptance test procedures (For Lucent Equipment)                X

4.   Review and approve system acceptance test procedures                                           X

5.   Perform system acceptance test and record results (For Lucent                   X
     Equipment)

6.   Develop punchlist detailing major and minor items                                              X

7.   Remedy all major punchlist items prior to system acceptance on all              X
     Lucent equipment

8.   Remedy all minor punchlist items prior to final acceptance on Lucent            X
     equipment

9.   Review test results                                                                            X

10.  Accept system                                                                                  X

11.  Provide manuals, drawings and documentation for all equipment,                  X
     software, and diagnostics provided by vendor.  One complete set per
     switch of hardcopy and CD-ROM required.  Included are any user guides

12.  Accept documentation as provided or request changes                                            X

13.  Turn-up for service                                                                            X

14.  Monitor performance during Acceptance Test Period                               X              X

15.  Perform corrective action as necessary for all Lucent provided                  X
     equipment, interfaces, and protocols

16.  Develop Exit Criteria                                                           X              X
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
No.                                                                                  Lucent         TeleCorp
- ---                                                                                  ------         --------
<S>                                                                                  <C>            <C>
1.   Develop training packages for engineering and operations in English             X

2.   Review training packages                                                                       X

3.   Deliver training                                                                X

4.   Determine recommended spares requirements                                       X

5.   Approve spares recommendations                                                                 X

6.   Provide spares                                                                  X

7.   Spares provided by vendor at system acceptance to be operationally              X
     equivalent of latest revision level

8.   Establish return and repair procedures                                          X
          Warranty
          Non-warranty

9.   Review return and repair procedure-change or approve as necessary                              X

10.  Develop test equipment recommendations for Lucent components                    X

11.  Review and approve test equipment recommendations                                              X

12.  Order test equipment except as noted in #13 below                                              X

13.  Furnish Lucent-specific test equipment (If there is any Test                    X
     equipment they need after we leave, get it for them and they will pay)

14.  Develop proposal for technical assistance plan for hardware and                 X
     software both on-site and remote with resources defined in Section
     1.10

15.  Review technical assistance plan and approve                                                   X

16.  Establish technical assistance if ordered by Owner                                             X

17.  Develop installation plans for each location and entity (pert or bar            X
     chart) (MS Project Plan and Access Database)
</TABLE>
<PAGE>

                             Site Ready Check List

The following items are required to install a typical PCS TDMA mini-cell

1.  A/C Power-or generator
2.  Inside construction complete
3.  Antenna erection complete (Union will NOT allow work while antenna is being
erected)
4.  Access to site arranged prior to Build Team dispatch
5.  Site cleaned of construction materials and dust
6.  POTS or cell phone provided
7.  Equipment delivered to site
8.  Grounding completed and per equipment specifications
9.  Ancillary equipment delivered and ready at time of equipment installation
(Batteries; Rectifiers; FIF; cable racks; etc.)

The following items are required to integrate (intra cell test) a PCS TDMA mini-
cell

1.  Commercial A/C or commercial generator
2.  T1 or Microwave facility in place and verified
3.  POTS or Tellular box
4.  Antennas (installed & swept)
5.  Translation loaded at switch
6.  Access arranged prior to Test Team dispatch.
<PAGE>

                                 ATTACHMENT D
<PAGE>

RF Performance Criteria for System Acceptance

1.0  Metrics and procedures.  The performance metrics defined below (section
5.0) are part of the contract.  The procedures for measuring the performance
metrics shall be executed as described below.  The metrics and associated
measurement techniques apply to the entire as-built TDMA system (i.e., all
clusters).  Metrics assessed on a per cluster basis may be computed but are for
information only and shall not be used in assessing system acceptance.

2.0  Test setup.  All tests shall be performed using test vehicles equipped with
a calibrated test mobile(s) that meet or exceed the minimum performance
specifications (TIA/EIA IS-136 and IS-137) for a TDMA mobile subscriber unit.
Test mobiles shall have fixed attenuators connected between the transceiver and
antenna to compensate for the test setup.  The compensation shall be computed to
render the test data equivalent to that which would be obtained with an
operational subscriber unit under common conditions (e.g., attenuation shall be
added in order to compensate for the benefit offered by the additional gain and
height of the test vehicle antenna.).  The values of any attenuators shall be
mutually agreed upon and determined via calibration procedure.  No attenuators
shall be added into the mobile path to compensate for vehicle or building
penetration losses.  The net value of attenuation used shall take into account
the cable loss from test vehicle antenna to test unit, as this loss would not
present in an operational subscriber unit under common conditions.

3.0  RF Design.  The RF design is to be done by the Customer and audited by the
Vendor; accordingly, mutual agreement shall be reached in determining the design
service area.  The design service area consists of those areas predicted via
design tools and processes to be covered.  In addition, for the RF warranty to
be valid, the Vendor and the Customer shall mutually agree to all design
parameters and translations (e.g. handoff thresholds, frequency plan, C/I [ratio
of carrier to cochannel interference power], C/N [ratio of carrier to total
impairment power], BER [bit error rate], antenna orientations).

4.0  Coverage Area and Valid Data  The coverage area for test shall consist of
mutually agreed upon test drive routes within the design service area (see
section 3.0).  For purposes of data collection and analysis, the test drive
routes shall be divided into spatial subdivisions called geographic bins.  The
bins shall be of mutually agreed size.  During data collection, the
<PAGE>

test routes shall be driven at speeds that are representative of normal
subscriber behavior. To be valid, data collected must be taken within the design
service area (see section 3.0). Only valid data shall be used in computing the
performance metrics (see section 5.0). In-building coverage via external TDMA
infrastructure shall not be tested as part of acceptance.

5.0  Performance Metrics

The following performance metrics shall be satisfied for acceptance.  All test
drive data shall be collected and analyzed using Vendor's AutoPace and TEMS (or
mutually agreed equivalent) tools.

5.1  Bit Error Rate (BER).  Forward and reverse links shall be characterized
separately.  Data shall be averaged per geographic bin in order to obtain an
average BER score that characterizes that bin's location.  Bin size must be
mutually agreed between Vendor and Buyer and need not necessarily be uniform;
however, a minimum of 5 seconds of data per bin must be used in computing the
BER score for that bin.

Of the valid data collected (see 4.0), the worst 1% of bins may be discarded.
The remaining 99% of the bins shall together constitute the non-excluded area.
The remaining average BER values for all bins shall be averaged together.  For
acceptance, this system average shall not exceed 3%.

5.2  Dropped Calls.  Data shall be collected and analyzed as follows.  A
sequence of test calls shall be placed along the test drive routes.  The number
of calls placed shall be sufficient to ensure statistical significance of the
results (i.e., at least 1,500 calls over the entire system unless mutually
agreed to be different).  The duration of each call shall not exceed 100
seconds.  The dropped call rate shall be the ratio of successfully originated
calls that were dropped to the total number of successfully originated calls.  A
successfully originated call is defined as a call that has entered the voice
state.  This definition includes drops for any reason, including handoff
failures. Only data collected within the non-excluded area (see section 5.1)
shall be included in this analysis.  For acceptance, the system dropped call
rate shall be less than or equal to 1.7%.

5.3  Established Calls.  Data shall be collected and analyzed as follows.  A
sequence of test calls shall be placed along the test drive routes.  The number
of calls placed shall be sufficient to ensure statistical significance of the
results.
<PAGE>

The established call success rate shall be computed as the ratio of the total
number of successfully originated and terminated calls to the total number of
valid call attempts. A successfully originated/terminated call is defined as a
call that has entered the voice state. A valid origination call attempt is
defined as an origination attempt via a correctly dialed number to a non-busy
radio/number at the cell/switch. A valid termination call attempt is defined as
a termination attempt via a correctly dialed number from the switch through a
nonbusy radio to an idle test mobile. Only data collected within the non-
excluded area (see section 5.1) shall be included in this analysis. For
acceptance, the established call success rate shall meet or exceed 98%.

6.0  A link budget and associated projections of coverage probability are
included in Appendix 1.  The presence of this information within this appendix
does not, explicitly or implicitly, constitute warranties on the values
provided, with the exception of values for Vendor provided equipment as
referenced in Section __ of this contract.  These values are for information
only.  The performance warranty is based only the performance metrics specified
above as computed on valid data collected on the test drive routes.
<PAGE>

Appendix 1

Table 1:  Probability of Service at Cell Edge (%)
- ---------------------------------------------------------------------
Morphology             Indoor          In Vehicle            Outdoor
- ---------------------------------------------------------------------

Urban                  80               99                   >99
Suburban               74               94                   >99
Rural                  74               88                    99
- ---------------------------------------------------------------------

Table 2:  Probability of Area Coverage (%)

- --------------------------------------------------------------------
Morphology             Indoor          In Vehicle            Outdoor
- ---------------------------------------------------------------------

Urban                  94              >99                   >99
Suburban               90               99                   >99
Rural                  90               98                   >99
- -------------------------------------------------------------------

Given the following:

Recommended Base Station Balanced EIRP: 52.2 dBm (165.8W)
Recommended Base Station Transmitter Output 37.9 dBm (6.2W)

Designed signal strength at cell edge:
Urban    -75dBm
Suburban -82dBm
Rural    -85dBm

Standard deviation for log-normal shadowing:
Outdoor  8dB
Indoor   5dB
Vehicle  3dB

Vehicle Penetration Margin: 8dB

Building Penetration Margin:

Urban       2OdB
Suburban    l5dB
Rural       l2dB
<PAGE>

                                 ATTACHMENT E

<PAGE>

                           Optional Software Pricing

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------------
Year               Pops           % Cov       Pops Cov        Pen         Subs       Yearly Fee      Cumm Fee
                                   Pops
- -----------------------------------------------------------------------------------------------------------------
<S>             <C>               <C>         <C>            <C>         <C>         <C>            <C>
1-Jan-99        11,100,000           0.2      2,220,000      0.0010        2,220         13,320         13,320
- -----------------------------------------------------------------------------------------------------------------
1-Jan-00        11,300,000           0.4      4,520,000      0.0175       79,100        474,600        487,920
- -----------------------------------------------------------------------------------------------------------------
1-Jan-01        11,373,450           0.5      5,686,725      0.0225      127,951        767,708      1,255,628
- -----------------------------------------------------------------------------------------------------------------
1-Jan-02        11,447,377          0.55      6,296,058      0.0275      173,142      1,038,850      2,294,477
- -----------------------------------------------------------------------------------------------------------------
1-Jan-03        11,521,785           0.6      6,913,071      0.0325      224,675      1,348,049      3,642,526
- -----------------------------------------------------------------------------------------------------------------
1-Jan-04        11,596,677          0.65      7,537,840      0.0375      282,669      1,696,014      5,338,540
- -----------------------------------------------------------------------------------------------------------------
1-Jan-05        11,672,055          0.66      7,703,557      0.0425      327,401      1,964,407      7,302,947
- -----------------------------------------------------------------------------------------------------------------
1-Jan-06        11,747,924          0.67      7,871,109      0.0450      354,200      2,125,199      9,428,147
- -----------------------------------------------------------------------------------------------------------------
1-Jan-07        11,824,285          0.67      7,922,271      0.0475      376,308      2,257,847     11,685,994
- -----------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

                                 ATTACHMENT F


<PAGE>

                              TeleCorp and Lucent
                                  New England
<TABLE>
<CAPTION>
         May 1                 July 27                Aug 15                                  Dec 15                 TBD

 Feb 15         June 15                  July 30                Sept 30          Nov 15                  Jan 15
- ------------------------------------------------------------------------------------------------------------------------------------
<S>      <C>   <C>             <C>       <C>          <C>      <C>              <C>           <C>     <C>            <C>
T-Order        L-Begin BTS Equip        L-Duplexers            T-PSTN and SS7   L-MSC Install         L-Network
   Number       Deliveries                 Available              Links            Complete              Element
   Blocks                                                         Installed                              Integration
               T-Begin MSC Civil        T-Duplexer                              L-Begin BTS              Complete
T-HLR Decision    Construction             Decision            T-Transmission      Integrations
                                           Date                   Equip                               . Billing
                                                                  Installed     L-First Call
                                        T- Data                                                       . Voice Mail
                                           Network             T-Begin T1       T-Microwave
                                           Complete               Acceptance       Relo Complete      . Customer
                                                                                                        Care

                                                                                                      . Fraud

                                                                                                      . AT & T Core
                                                                                                        Features

         T-Begin BTS           L-MSC Equip.           T-MSC Civil                             L-Network              L-New Orleans
            Site                  Ship                   Complete                                Element                Filter
            Construction                                                                         Integration            Solution
                               T-MSC Power            T-Begin                                    Complete               Installed
                                  Room                   Transmission
                                  Complete               Equipment                             . HLR                 T-NOC Complete
                                                         Install
                                                                                               . SMSC                T-Launch Sites
                                                      L-Begin MSC                                                       Constrution
                                                         Equip. Install                        . NACN                   Complete

                                                                                               . Autospace           T-Lockdown of
                                                                                                                        Launch Date

                                                                                                                     (Launch Minus
                                                                                                                        60 Days)
<CAPTION>
                                 TBD
     TBD
- ----------------------------------------------
<S>                              <C>
L-Launch Sites
   Optimization
     Complete

T-Begin System
   Acceptance
   Testing

T-Begin 30 Day
   Stable
   Period
(Launch Minus
   30 Days)
                                 T-System
                                   Acceptance

                                 * Launch *
</TABLE>

T-TeleCorp Responsibility

L-Lucent Responsibility
<PAGE>

                                 ATTACHMENT G
<PAGE>

ATTACHMENT G
                               Engineer's Notes

This document provides high level specifications for modifications to the PCS
TDMA MiniCell needed to support TeleCorp. Primary objectives of these
modifications are the following:

1.   Provide support for any two (2) different PCS frequency blocks on every
     sector of the MiniCell. This capability will give the service provider the
     ability to perform radio frequency changes remotely from the MSC via
     software command.
2.   Reduce the antenna and antenna cable counts by providing double duplexing
     tower top low noise amplifier (DTT-LNA). The DTT-LNA will not be block-
     specific and will thus support multiple PCS blocks as discussed in item 1.

Specifications for multiple band support, final product:

The modified PCS TDMA MiniCell shall operate in any two(2) different PCS
frequency blocks on each physical antenna face (i.e., sector). It shall support
up to 8 traffic radios per sector, which can be allocated in any combination
between the 2 blocks. Radio channel assignments shall be made from the ECP
(using current APX RCV), and for a given radio, channel assignments within
either block will be allowed.

The modified PCS TDMA MiniCell shall be operated only with the double duplex
tower top Low Noise Amplifier (DTT-LNA). All current radio diagnostics shall be
supported. Antenna diagnostics shall be provided via the current transmit
antenna functional test.

The modified PCS TDMA MiniCell shall be available only in the current Type 3
configuration; requiring a primary and one growth cabinets as the minimum
configuration.

The current feature set shall be available.

Note that there may need to be certain restrictions on allowable combinations,
or spacing of channels due to intermodulation performance. For example, 2
channels that are spaced 20 MHz apart will cause a 3rd order intermodulation
product to fall directly on the receive frequency of the lower channel. This
situation should not be allowed. Every effort will be made to minimize these
situations, and the customer will be provided with equipage recommendations.

Specifications for multiple band support, interim product

The interim modified PCS TDMA MiniCell shall operate in any two(2) different PCS
frequency blocks on each physical antenna face (i.e., sector). It shall support
up to 8 traffic radios per sector and on each sector, a maximum of 4 per block,
which will be allocated in pairs between the two blocks. Radio channel
assignments within a block shall be made from the ECP (using current APX RCV).
In addition, each radio may be enabled and disabled from APX RCV.
<PAGE>

The interim modified PCS TDMA MiniCell shall be operated only with the double
duplex tower top Low Noise Amplifier (DTT-LNA).

The interim modified PCS TDMA MiniCell shall be available only in the current
Type 3 configuration; requiring a primary and one growth cabinets as the minimum
configuration.

Specifications for the Double Duplex Tower Top Low Noise Amplifier:

The double duplex tower top LNA (DTT-LNA) shall consist of two parts: the Duplex
Masthead Antenna Unit (DMAU) and the Duplex Frame Receive Unit (DFRU). The DMAU
will be mounted on the antenna mast, near the antenna to minimize the cable
length. The DFRU shall be mounted within the MiniCell enclosure; it replaces the
current FRU used in non-duplex tower top applications. The combination of DMAU
and DFRU shall provide a common cable for transmit and receive signals for the
run up the antenna tower, and shall allow a common antenna to be used for
transmit and receive. DTT-LNA shall be required for both diversity receive
paths, when diversity is equipped, and both receive paths will be duplexed with
transmit paths if more than one traffic radio is equipped. The DMAU and DFRU
shall always be used together.

The DMAU and DFRU shall be designed to support 60 MHz base station transmit and
receive bands. The noise figure for the entire MiniCell receive path, measured
at the input of the DMAU, and including the combination of DMAU, up to 7 dB
antenna cable loss, DFRU, RF switch, EDRU and frame cabling shall not exceed 5.5
dB.

The DFRU shall provide DC power to the DMAU over the antenna cable. The DFRU
shall monitor the DMAU current alarm and report alarms to the remote ECP, in the
same manner as the current MAU/FRU combination.

<PAGE>

                                 ATTACHMENT H
<PAGE>

ATTACHMENT H

                            EXTENDED WARRANTY PLAN

Upon the expiry of the warranty period applicable to any equipment, purchaser
may, at its option, subscribe to Vendors's extended warranty plan for the repair
and/or replacement of the hardware components of such equipment. The support
services provided by Vendor to Purchaser under the extended warranty plan shall
be equivalent to those services which were available to Purchaser in respect of
such equipment prior to the expiry of the warranty period relating to such
equipment. The price of subscribing to the extended warranty plan, during the
initial term, is set out below:

- -----------------------------------------------------------------------------
TYPE OF                                    ANNUAL PRICE (a)
NETWORK ELEMENT                           PER NETWORK ELEMENT
- -----------------------------------------------------------------------------
5ESS Switch                           2/% of Value of Out-of Warranty
                                      Hardware
- -----------------------------------------------------------------------------
PCS Access Manager                    2% of Value of Out of Warranty
                                      Hardware
- -----------------------------------------------------------------------------
PCS Minicell                          $2,000 per PCS Minicell
- -----------------------------------------------------------------------------
PCS Microcell                         2% of Value of Out of Warranty
                                      Hardware
- -----------------------------------------------------------------------------
<PAGE>

                                  ATTACHMENT I
<PAGE>

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------

 1997 TDMA Plan:
 Cellular & PCS
  ===============================================================================================================================

                 R9.0 (Cellular)                  R9/1 (PCS)      R9.1 (Cellular)                          R10.0
                   CI 6/6/97                      CI 6/27/97        GA 8/29/97                        GA target 12/2/97
- ---------------------------------------------     ------------------------------          -----------------------------------------
<S>                                               <C>                                      <C>
 . EDRU for 850 MHz - VSELP only                   . ACELP Phase 2, Switchable Per          . Digital Locate - EDRU Support
 . Visual Zone ID                                    Call                                       . DVCC with RSSI
 . Carrier-Specific Teleservice Transport          . Interhyperband (PCS-D to                   . Mobile Saturation
 . OA&M Improvements                                 Cellular A) Hand-down                        Resolution
     . Analog Performance Enhancements:           . TTLNA Support                              . Hybrid MAHO/Locate
                                                  ------------------------------
          - SAT SINAD for Voice                                                                . ARR
          - Service Measurements                  -----------------------
          Overhaul (Phase 2)                                 PCS                               . IS-136 Private Networks
          - Digital Color Code                            Tower Top          ECP 10.0          . BER-Controlled DPC
- ---------------------------------------------
                                                          Low Noise          GA 7/97
                                                          Amplifier                            . Rogue Mobile
                                                  -----------------------
                                                                                                 Detection
                                                                      -------------------
                                                                      . IS-41 Facilities       . Rogue Mobile
                                                                        Directive 2              Identification
                                                                        Messaging              . AMUG 29-15 VCSA
                                                                      -------------------
                                                                                                 Trigger Type
                                                                                               . AMUG 29-16 CP
                                                                                                 Failure Reason Msg
                                                                                               . E911 (ECP)
                                                                                               . HA OMP (ECP)
                                                                                          -----------------------------------------

                                                                           --------------------
                                                                           PCS C,D,E,F
                                                                           band Filters
                                                                           --------------------
  ===============================================================================================================================
                                 1H97      Lucent Technologies Proprietary - Restricted       2H97

- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------------------
     1998 TDMA Plan:
     Cellular & PCS
     ------------------------------------------------------------------------------------------------------------------------------
      <S>                          <C>                                               <C>
            R11.0                                     R12.0                                          R13.0 Candidates
           FOA 1/98                                GA target 9/98                                     GA target 4Q98
          GA target 2/98           -------------------------------------------       -------------------------------------------
      --------------------------       . Vocoder Relocation                             . Two-Branch Intelligent Antenna
      . Interhyperband                 . IS-136 SMS Mobile Originated                    Phase 1
        Operation (Digital to          . R-Data over DCCH and DTC*                      . IS-136A Calling Name
        Digital)                              - User Acknowledgment                      Presentation
      . DCCH Info on AVC                      - Mobile Originated Messages              . IS-130/IS-135 Circuit Mode Data &
        Release                        . AMUG 36-12 Separate DCCH and                    Fax*#
      . Service Meas Overhaul            DTC "Access Thresholds                         . IS-136A Over the Air Activation*
        Phase 3                        . AMUG 35-17 HOBIT to AMPS (3                    . Test-EDRU
      . XTA support on S1lmm             thresholds)                                    . IS-54/IS-136 Signaling Message
      . AMUG 35-06 Dual               --------------------------------------------       Encryption
        Server Group OOS                             1999 Candidates                 -------------------------------------------
        Limits                        --------------------------------------------
      . AMUG 36-13 Chng                 . Flexible Channel Allocation
        TDMA Trans Levels               . Teleservice Screening Ph2
      . AMUG 38-13 DS-1                 . Hierarchical Cell Enhancements
        Alarms Clearing after           . 2 Branch Intelligent Antenna Ph2
        DS-1 Board is Restored          . PACA
      . AMUG 28-29 Locate               . Multiple DCCH's on a single EDRU
        Count per Face                  . IMSI
     --------------------------         . Mobile Station Locator
                                        . Flexible Alerting
                                        . Wireless Business Service
                                        . SMS Broadcast
                                        . Separate BER Thresholds for ACELP and
                                         VSELP
                                        . Discontinuous Transmission
                                        . Enhanced Voice Privacy
                                        . Automatic Call Delivery on Deregistration
                                        . IS-136+
                                      ----------------------------------------------
     ------------------------------------------------------------------------------------------------------------------------------
                                   1 H97    Luccent Technologies Proprietary-Restricted     2 H97
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

                           Lucent Technologies Inc.
                               4851 LBJ Freeway
                                   Suite 900
                              Dallas, Texas 75224

May 12, 1998

Thomas Sullivan
Gerald Vento
1101 17th Street, N.W.
9th Floor
Washington, D.C. 20036

Gentlemen:

     Reference is made to the General Agreement for Purchase of Personal
Communications Systems and Services, dated the date hereof, between TeleCorp PCS
Inc. ("TeleCorp") and Lucent Technologies Inc. ("Lucent") regarding the purchase
by TeleCorp from Lucent of certain telecommunications systems and services (the
"Agreement").  In connection with the execution and delivery of the Agreement by
TeleCorp and Lucent, Lucent hereby agrees as follows:

     1.  Lucent hereby agrees that any Affiliate (as hereinafter defined) shall
have the right (but not the obligation) to purchase from Lucent
telecommunications systems and services under terms identical to the terms
contained in the Agreement; provided, however, that (a) Lucent shall be
reasonably satisfied with the credit worthiness of the Affiliate and (b) Lucent
shall not be required to provide financing to such Affiliate unless Lucent, in
its reasonable discretion, agrees to do so.  If an Affiliate elects to purchase
equipment from Lucent on the same terms as the Agreement, Lucent agrees to enter
into an agreement ("Separate Agreement") with such Affiliate on the identical
terms as the Agreement, with only such changes therein as are appropriate to
reflect the markets to be covered by such Separate Agreement, the Affiliate
being the Customer, and similar changes; however, the pricing, warranty,
discount and other terms and conditions contained in the Agreement shall be
contained in the Separate Agreement (except for financing terms, unless
otherwise agreed to by Lucent).  As used herein, the term "Affiliate" shall mean
any person, firm, partnership, corporation or other entity ("Company") operating
a wireless telecommunications system (a) which is, directly or indirectly,
controlled by, under common control with or controls TeleCorp;
<PAGE>

or (b) which is controlled, directly or indirectly, by either or both of Thomas
Sullivan or Gerald Vento (collectively the "Controlling Parties"). For purposes
of the foregoing definition of Affiliate the term "control" shall mean (a) the
ownership, directly or indirectly, of at least 50.1% of the voting control of
the Company, (b) a binding agreement or option to acquire at least 50.1% of the
voting control of the Company or (c) serving as a management or construction
management agent for an entity holding a construction permit or license to
operate a wireless telecommunications system or having an agreement to operate
such.

     2.  Entire Agreement.  This Letter Constitutes the entire agreement between
         ----------------
the parties and supersedes any prior understandings, agreements or
representations by or between the parties, written or oral, to the extent they
related in any way to the subject matter hereof.

     3.  Counterparts.  This Letter may be executed in counterparts, each of
         ------------
which shall be an original but both of which together shall constitute one
instrument. Each counterpart may consist of a number of copies hereof, each
signed by less than all, but together signed by all, of the parties hereto.

     4.  Jurisdiction.  The provisions of this Letter shall be governed by the
         ------------
internal laws of the State of New York, without regard to its principles of
conflict of laws.

     5.  Notices.  All notices to a party hereunder shall be deemed to have been
         -------
adequately given if delivered in person or mailed, certified mail, return
receipt requested, to such party at its address set forth below (or such other
address as it may from time to time designate in writing to the other parties
hereto):

     To Lucent:                Doris Jean Head
                               Suite 980
                               44851 LBJ Freeway
                               Dallas, TX 75244

     with a copy to:           Marc N. Epstein
                               Corporate Counsel
                               283 King George Road
                               Warren, NJ 02059
                               980-559-3377
                               980-559-8174 (facsimile)
<PAGE>

     To Controlling Parties:   Thomas Sullivan
                               Gerald Vento
                               1101 17th Street
                               9th Floor
                               Washington, D.C. 20036

6. Succession and Assignment. This Letter shall be binding upon and inure to the
   -------------------------
benefit of the parties named herein and their respective successors and
permitted assigns. Please confirm your agreement to the foregoing by executing
the counterpart of this letter and returning it to the undersigned.

                                   Very truly yours,

                                   LUCENT TECHNOLOGIES, INC.


                                   By:    /s/ [signature illegible]
                                          -------------------------
                                   Name:
                                          -------------------------
                                   Title:
                                          -------------------------


AGREED TO AND ACCEPTED
AS OF 12 May, 1998

/s/ Thomas Sullivan
- --------------------------
Thomas Sullivan

/s/ Gerald Vento
___________________________
Gerald Vento
<PAGE>

May 12, 1998

Lucent Technologies Inc.
4851 LBJ Freeway
Suite 900
Dallas, Texas 75244

Attention: Ms. Doris Jean Head
- ------------------------------

Reference is made to the General Agreement for Purchase of Personal
Communications Systems and Services, dated the date hereof, between TeleCorp
PCS, Inc. ("TeleCorp") and Lucent Technologies Inc. ("Lucent") regarding the
purchase by TeleCorp from Lucent of certain telecommunications systems and
services (the "Agreement").  Capitalized terms used in this letter, unless
otherwise defined herein, shall have the meanings ascribed to them in the
Agreement.  In connection with the execution and delivery of the Agreement by
TeleCorp and Lucent, and as a condition thereto, TeleCorp and Lucent have agreed
as follows:

1.  The Minimum Market Commitment set forth in Section 1.4 of the Agreement
shall be expanded to include San Diego and Puerto Rico, provided (i) TeleCorp
acquires these markets from AT&T Wireless and TeleCorp, its sole discretion,
elects to build out the Initial System for each such Market and (ii) at the time
that TeleCorp acquires these Markets and, in its sole discretion, elects to
build out the Initial System for each such Market, Lucent has theretofore
performed, on a timely basis, all of its obligations under the Agreement in
accordance with the terms of the Agreement and is not in default of any of its
obligations under the Agreement.

2.  On or before September 30, 1998, TeleCorp shall have submitted to Lucent
binding purchase orders to purchase $40 million in aggregate purchase price (or
license fees with respect to Licensed Materials) of Products, Licensed Materials
and Services.

3.  Seller agrees that it will support Phase I of the FCC requirements regarding
E-911 services and the FCC requirements regarding CALEA and, with respect to the
Initial System for each Market, will provide Customer as part of the Initial
System for each Market, at no additional charge(with the exception of any third
party equipment, software or services), all Products, Licensed Materials and
Services required to permit Customer to provide such services to its subscribers
in accordance with
<PAGE>

applicable FCC requirements as in effect at the date of Acceptance of such
Initial System.

CONSENTED AND AGREED:

Lucent Technologies                          TeleCorp PCS, Inc.


By:     /s/ [signature illegible]            By:   /s/ Gerald T. Vento
        ------------------------------             -----------------------------

Name:                                        Name:  Gerald T. Vento
        ------------------------------             -----------------------------

Title:                                       Title: CEO
        ------------------------------             -----------------------------

Date:      May 12, 1998                      Date:  May 12, 1998
        -------------------------------            -----------------------------

<PAGE>

                                                                  EXHIBIT 10.3.1
                                                                  --------------



       _________________________________________________________________

                         SECURITIES PURCHASE AGREEMENT

                                  by and among

                            AT&T WIRELESS PCS INC.,

                              TWR CELLULAR, INC.,

                             CASH EQUITY INVESTORS,

                              TELECORP INVESTORS,

                            MANAGEMENT STOCKHOLDERS

                                      and

                               TELECORP PCS, INC.

                          Dated as of January 23, 1998

       __________________________________________________________________
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                     Page
                                                                                                                     ----
<S>                                                                                                                  <C>
ARTICLE I     DEFINITIONS............................................................................................   2

ARTICLE II    CONTRIBUTIONS; PURCHASE AND SALE OF SECURITIES; CERTAIN RESTRICTIONS ON TRANSFER.......................   8
        2.1   AT&T PCS Contributions.................................................................................   8
        2.2   Cash Equity Investor Contributions.....................................................................   9
        2.3   TeleCorp Investor Contributions........................................................................   9
        2.4   Management Stockholder Contributions...................................................................  10
        2.5   Purchase and Sale of Securities at Closing.............................................................  10
        2.6   Additional Purchase by Cash Equity Investors...........................................................  10
        2.7   Restrictive Legends....................................................................................  10
        2.8   Use of Proceeds........................................................................................  11

ARTICLE III   CLOSING................................................................................................  11

        3.1   Time and Place of Closing..............................................................................  11
        3.2   Closing Actions and Deliveries.........................................................................  11
        3.3   Payment of Transfer Taxes..............................................................................  13
        3.4   Issuance of Additional Shares..........................................................................  13

ARTICLE IV    REPRESENTATIONS AND WARRANTIES OF PURCHASERS...........................................................  13

        4.1   Organization; Power and Authority......................................................................  13
        4.2   Consents; No Conflicts.................................................................................  14
        4.3   Litigation.............................................................................................  15
        4.4   FCC Compliance.........................................................................................  15
        4.5   Brokers................................................................................................  15
        4.6   AT&T PCS Licenses......................................................................................  15
        4.7   Capital Commitment.....................................................................................  16
        4.8   No Distribution........................................................................................  16
        4.9   Investor Acknowledgments...............................................................................  16
        4.10  Institutional Investors................................................................................  17

ARTICLE V     REPRESENTATIONS AND WARRANTIES OF THE COMPANY, THE TELECORP INVESTORS AND THE MANAGEMENT STOCKHOLDERS..  17

        5.1   Organization, Power and Authority......................................................................  17
</TABLE>

                                       i
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                     Page
                                                                                                                     ----
<S>                                                                                                                  <C>
        5.2   Consents; No Conflicts.................................................................................  18
        5.3   Litigation.............................................................................................  19
        5.4   FCC Compliance.........................................................................................  19
        5.5   Brokers................................................................................................  19
        5.6   Newly Formed Company...................................................................................  19
        5.7   Capitalization.........................................................................................  19
        5.8   Shares.................................................................................................  20
        5.9   No Undisclosed Liabilities; Subsidiaries...............................................................  20
        5.10  Offering of Securities.................................................................................  20
        5.11  Loan Documents.........................................................................................  21
        5.12  Minimum Build-Out Plan.................................................................................  21
        5.13  Small Business Matters.................................................................................  21
        5.14  No Distribution........................................................................................  22
        5.15  Investor Acknowledgments...............................................................................  22
        5.16  Representations as to TeleCorp.........................................................................  23

ARTICLE VI    COVENANTS..............................................................................................  25

        6.1   Consummation of Transactions...........................................................................  25
        6.2   Confidentiality........................................................................................  26
        6.3   Retained Licenses......................................................................................  27
        6.4   No Further Commitment..................................................................................  27
        6.5   Use of Proceeds........................................................................................  28
        6.6   SBIC Regulatory Provisions.............................................................................  28
        6.7   Regulatory Compliance Cooperation......................................................................  28
        6.8   Permitted Pre-Closing Expenditures.....................................................................  29
        6.9   Certain Covenants......................................................................................  30
        6.10  Employment Agreements..................................................................................  31
        6.11  Restricted Stock Plan..................................................................................  31

ARTICLE VII.  CLOSING CONDITIONS.....................................................................................  32

        7.1   Conditions to Obligations of All Parties...............................................................  32
        7.2   Conditions to Obligations of Each Party................................................................  32
</TABLE>

                                      ii
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
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                                                                                                                     ----
<S>                                                                                                                  <C>
         7.3  Conditions to the Obligations of the Purchasers........................................................  34

ARTICLE VIII  SURVIVAL AND INDEMNIFICATION...........................................................................  34

         8.1  Survival...............................................................................................  34
         8.2  Indemnification by the Purchasers......................................................................  35
         8.3  Indemnification by the Management Stockholders.........................................................  35
         8.4  Indemnification by the Company.........................................................................  36
         8.5  Indemnification by the TeleCorp Investors and the Management Stockholders..............................  36
         8.6  Procedures.............................................................................................  36
         8.7  Registration Rights....................................................................................  38
         8.8  Limit on Indemnity.....................................................................................  38

ARTICLE IX    TERMINATION............................................................................................  38

         9.1  Termination............................................................................................  38
         9.2  Effect of Termination..................................................................................  39

ARTICLE X     MISCELLANEOUS PROVISIONS...............................................................................  39

        10.1  Amendment and Modification.............................................................................  39
        10.2  Waiver of Compliance; Consents.........................................................................  39
        10.3  Notice.................................................................................................  39
        10.4  Expenses...............................................................................................  41
        10.5  Parties in Interest; Assignment........................................................................  41
        10.6  Applicable Law.........................................................................................  41
        10.7  Counterparts...........................................................................................  42
        10.8  Interpretation.........................................................................................  42
        10.9  Entire Agreement.......................................................................................  42
        10.10 Publicity..............................................................................................  42
        10.11 Specific Performance...................................................................................  42
        10.12 Remedies Cumulative....................................................................................  42
        10.13 Authorized Agent of AT&T PCS...........................................................................  43
</TABLE>

                                      iii
<PAGE>

Schedules

Schedule I       --    Cash Equity Investors and Commitments
Schedule II-A    --    TeleCorp Investors
Schedule II-B    --    Management Stockholders
Schedule III-A   --    AT&T PCS Licenses and TWR Licenses
Schedule III-B   --    TeleCorp Licenses
Schedule IV      --    Company Territory
Schedule V       --    Securities

Schedule 1.1     --    Pre-Closing Expenditures
Schedule 2.1     --    Description of AT&T PCS Contributed and Retained
                        Licenses
Schedule 4.2     --    Purchaser Consents
Schedule 5.2     --    Company and Management Stockholder Consents
Schedule 5.12    --    Minimum Build-Out Schedule
Schedule 5.16(d) --    TeleCorp Financial Statements
Schedule 5.16(g) --    TeleCorp FCC Proceedings
Schedule 6.11    --    Restricted Stock Plan

Exhibits

Exhibit A      --  Form of Management Agreement
Exhibit B      --  Form of Network Membership License Agreement
Exhibit C      --  Form of Resale Agreement
Exhibit D      --  Form of Restated Bylaws
Exhibit E      --  Form of Restated Certificate
Exhibit F      --  Form of Roaming Agreement
Exhibit G      --  Form of Stockholders Agreement
Exhibit H- I   --  Form of Opinion of Counsel to AT&T PCS
Exhibit H-2    --  Form of Opinion of FCC Counsel to AT&T PCS
Exhibit I      --  Form of Opinion of Counsel to Cash Equity Investors
Exhibit J- I   --  Form of Opinion of Counsel to TeleCorp Investors
Exhibit J-2    --  Form of Opinion of FCC Counsel to TeleCorp Investors
Exhibit K- I   --  Form of Opinion of Counsel to Company and Management
                    Stockholders
Exhibit K-2    --  Form of Opinion of FCC Counsel to Company and Management
                    Stockholders
Exhibit L      --  Form of Pledge Agreement
Exhibit M      --  Form of Assignment
Exhibit N      --  Form of TeleCorp Charter Amendment

                                      iv
<PAGE>

                         SECURITIES PURCHASE AGREEMENT
                         -----------------------------

          SECURITIES PURCHASE AGREEMENT, dated as of January 23, 1998, by and
among AT&T Wireless PCS Inc., a Delaware corporation ("AT&T PCS"), TWR Cellular,
                                                       --------
Inc., a Maryland corporation ("TWR"), the investors referred to on Schedule I
                               ---
(individually, a "Cash Equity Investor" and, collectively, the "Cash Equity
                  --------------------                          -----------
Investors"), the investors listed on Schedule II-A (individually, a "TeleCorp
- ---------                                                            --------
Investor" and, collectively, the "TeleCorp Investors"), the individuals listed
- --------                          ------------------
on Schedule II-B (individually, a "Management Stockholder" and, collectively,
                                   ----------------------
the "Management Stockholders") and TeleCorp PCS, Inc., a Delaware corporation
     -----------------------
(the "Company").  AT&T PCS, TWR, the Cash Equity Investors, and the TeleCorp
      -------
Investors are sometimes referred to herein, individually, as a "Purchaser" and,
                                                                ---------
collectively, as the "Purchasers."
                      ----------

          WHEREAS, AT&T PCS has been granted the PCS licenses described on
Schedule III-A (the "AT&T PCS Licenses");
                     -----------------

          WHEREAS, TWR holds the PCS licenses described on Schedule III-A (the
"TWR Licenses");
 ------------

          WHEREAS, TeleCorp Holding Corp., Inc., a Delaware corporation
("TeleCorp"), has been granted the PCS licenses described on Schedule III-B (the
  --------
"TeleCorp Licenses");
 -----------------

          WHEREAS, the Management Stockholders organized the Company by the
filing of a Certificate of Incorporation (the "Original Certificate"), and as of
                                               --------------------
the date hereof the Management Stockholders are the record and beneficial owners
of all of the issued and outstanding capital stock of the Company;

          WHEREAS, the Management Stockholders have extensive experience and
expertise in the wireless telecommunications industry and have organized the
Company in order to construct and operate a mobile wireless telecommunications
system in the territory (the "Company Territory") described on Schedule IV;
                              -----------------

          WHEREAS, each of the Purchasers wishes to acquire securities of the
Company in consideration of contributions of cash and/or other property to the
capital of the Company, and the Company wishes to accept such contributions and
issue securities to each of the Purchasers, all on the terms and subject to the
conditions herein set forth; and

          WHEREAS, the parties wish to amend and restate the Original
Certificate in its entirety in order to reflect, among other things, the
authorization of the securities being issued hereunder, and the parties wish to
enter into certain agreements relating to the parties' rights and obligations in
connection with the Company;
<PAGE>

          NOW, THEREFORE, in consideration of the promises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the parties agree as follows:

                                   ARTICLE I

                                  DEFINITIONS

          As used herein, the following terms have the following meanings
(unless indicated otherwise, all Section and Article references are to Sections
and Articles in this Agreement, and all Schedule and Exhibit references are to
Schedules and Exhibits to this Agreement):

          "Affiliate" means, with respect to any Person, any other Person that
           ---------
directly, or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with that Person.  For purposes of this
definition, "control" (including the terms "controlling " and "controlled")
means the power to direct or cause the direction of the management and policies
of a Person, directly or indirectly, whether through the ownership of securities
or partnership or other ownership interests, by contract or otherwise.

          "Aggregate Commitment" means, with respect to each Cash Equity
           --------------------
Investor, the amount set forth opposite its name on Schedule I under the heading
"Aggregate Commitment."

          "AT&T Contributed Licenses" has the meaning set forth in Section 2.1.
           -------------------------

          "AT&T License Transfer" has the meaning set forth in Section 3.2(a).
           ---------------------

          "AT&T Party" means AT&T PCS, TWR and each Affiliate of AT&T PCS that
           ----------
is a party to any of the Related Agreements.

          "AT&T PCS" has the meaning set forth in the preamble.
           --------

          "AT&T PCS Licenses" has the meaning set forth in the first recital.
           -----------------

          "AT&T PCS Purchased Licenses" mean the PCS licenses that the Company
           ---------------------------
has agreed to purchase from AT&T PCS pursuant to the terms of the License
Purchase Agreement.

          "AT&T Retained Licenses" has the meaning set forth in Section 2.1.
           ----------------------

          "Bridge Notes" means promissory notes of TeleCorp issued to certain
           ------------
Cash Equity Investors.

          "Cash Equity Investor" has the meaning set forth in the preamble.
           --------------------
<PAGE>

          "Cash Equity Investor Contributions" means the Aggregate Commitments,
           ----------------------------------
The Initial Capital Contributions and the additional cash contributions in
respect of the Supplemental Commitments and the Unfunded Commitments, in each
case of the Cash Equity Investors.

          "Class C Common Stock" means the Class C Common Stock, par value $.01
           --------------------
per share, of the Company.

          "Class D Common Stock" means the Class D Common Stock, par value $.01
           --------------------
per share, of the Company.

          "Claim" has the meaning set forth in Section 8.6(a).
           -----

          "Closing" has the meaning set forth in Section 3.1.
           -------

          "Closing Date" has the meaning set forth in Section 3.1.
           ------------

          "Common Stock" means, collectively, Voting Preference Stock, the
           ------------
Tracked Common Stock, the Voting Common Stock and the Non-Voting Common Stock.

          "Company" has the meaning set forth in the preamble.
           -------

          "Company Territory" has the meaning set forth in the fifth recital.
           -----------------

          "Confidential Information" means any and all information regarding the
           ------------------------
business, finances, operations, products, services and customers of the Person
specified and its Affiliates, in written or oral form or in any other medium.

          "Consents" means all consents and approvals of Governmental
           --------
Authorities or other third parties necessary to authorize, approve or permit the
parties hereto to consummate the Transactions and for the Company to operate its
business after the Closing Date as currently contemplated.

          "Contributions" means, collectively, the AT&T Contributed Licenses,
           -------------
the TeleCorp Equity Interests, and the Cash Equity Investor Contributions.

          "Credit Agreement" means the agreement among the Company, the lenders
           ----------------
and the agents referred to therein, and any other parties who become lenders or
agents thereunder, to be dated as of the Closing Date, to provide a credit
facility having aggregate commitments of at least S435 million, as the same may
be amended, modified or supplemented in accordance with the terms thereof.

          "Credit Documents" means the Credit Agreement and all agreements,
           ----------------
instruments and documents executed and delivered pursuant thereto, as the same
may from time to time be amended, modified or supplemented in accordance with
the terms thereof.

          "Employment Agreements" has the meaning set forth in Section 6.10.
           ---------------------                               ------------
<PAGE>

          "FCC" means the Federal Communications Commission or similar
           ---
regulatory authority established in replacement thereof.

          "FCC Law" means the Communications Act of 1934, as amended, including
           -------
as amended by the Telecommunications Act of 1996, and the rules, regulations and
policies promulgated thereunder.

          "Final Order" has the meaning set forth in Section 7.1(b).
           -----------

          "Financing" has the meaning set forth in the SBIC Regulations.
           ---------

          "Governmental Authority" means a Federal, state or local court,
           ----------------------
legislature, governmental agency (including, without limitation, the United
States Department of Justice), commission or regulatory or administrative
authority or instrumentality.

          "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements Act of
           -------
1976, as amended, and the rules and regulations promulgated thereunder.

          "Indemnified Party" has the meaning set forth in Section 8.6(a).
           -----------------

          "Indemnifying Party" has the meaning set forth in Section 8.6(a).
           ------------------

          "Initial Cash Contribution" means, with respect to each Cash Equity
           -------------------------
Investor, the amount set forth opposite its name on Schedule I under the heading
"Initial Cash Contribution."

          "Law" means applicable common law and any statute, ordinance, code or
           ---
other law, rule, permit, permit condition, regulation, order, decree, technical
or other standard, requirement or procedure enacted, adopted, promulgated,
applied or followed by any Governmental Authority.

          "License" means a license, permit, certificate of authority, waiver,
           -------
approval, certificate of public convenience and necessity, registration or other
authorization, consent or clearance to construct or operate a facility,
including any emissions, discharges or releases therefrom, or to transact an
activity or business, to construct a tower or to use an asset or process, in
each case issued or granted by a Governmental Authority.

          "License Purchase Agreement" means the License Purchase Agreement,
           --------------------------
dated as of the date hereof, between AT&T PCS and the Company, as the same may
be amended, modified or supplemented in accordance with the terms thereof.

          "Lien" means, with respect to any asset, any mortgage, lien, pledge,
           ----
charge, security interest, right of first refusal or right of others therein, or
encumbrance of any nature whatsoever in respect of such asset.

          "Losses" has the meaning set forth in Section 8.2.
           ------
<PAGE>

          "Management Agreement" means the Management Agreement between the
           --------------------
Company and TeleCorp Management Corp. I, L.L.C., in substantially the form of
Exhibit A, to be dated as of the Closing Date, as the same may be amended,
modified or supplemented in accordance with the terms thereof.

          "Management Stockholder" has the meaning set forth in the preamble.
           ----------------------

          "Material Adverse Effect" means a material adverse effect on the
           -----------------------
business, financial condition, assets, liabilities or results of operations or
prospects of the Person specified.

          "Network Membership License Agreement" means the Network Membership
           ------------------------------------
License Agreement between the Company and AT&T Corp., in substantially the form
of Exhibit B, to be dated as of the Closing Date, as the same may be amended,
modified or supplemented in accordance with the terms thereof.

          "New York Courts" has the meaning set forth in Section 10.6.
           ---------------

          "Non-Voting Common Stock" means the Company's Class B Non-Voting
           -----------------------
Common Stock, par value $.01 per share.

          "Old Common Stock" has the meaning set forth in Section 5.7.
           ----------------

          "Original Certificate" has the meaning set forth in the fourth
           --------------------
recital.

          "Permitted Liens" means (i) Liens arising in favor of sellers or
           ---------------
lessors for indebtedness and obligations incurred to purchase or lease fixed or
capital assets, provided that such liens secure only the indebtedness and
obligations created thereunder and are limited to the assets purchased or leased
pursuant thereto and the proceeds thereof; (ii) mechanic's and workmen's liens,
liens for taxes, assessments or other governmental charges; (iii) pledges or
deposits to secure obligations under workmen's compensation, unemployment
insurance or social security laws or similar legislation; (iv) deposits to
secure performance or payment bonds, bids, tenders, contracts, leases,
franchises or public and statutory obligations required in the ordinary course
of business; (v) deposits to secure surety, appeal or custom bonds required in
the ordinary course of business; and (vi) statutory landlord liens, in each case
to the extent incurred in accordance with the terms of Section 6.8.

          "Person" means an individual, corporation, partnership, limited
           ------
liability company, association, joint stock company, Governmental Authority,
business trust, unincorporated organization, or other legal entity.

          "Pre-Closing Advances" has the meaning set forth in Section 6.8(b).
           --------------------

          "Pre-Closing Commitment" has the meaning set forth in Section 6.8(a).
           ----------------------

          "Pre-Closing Expenditures" means expenditures of the nature and up to
          -------------------------
the amount set forth on Schedule 1.1; provided, that such expenditures shall be
for general working capital or assets, properties or rights that are necessary
or advisable, in the good faith
<PAGE>

determination of the Company, in order to facilitate the construction of PCS
systems in the geographical areas within the portion of the Company Territory
covered by the AT&T PCS Licenses and the TWR Licenses.

          "Pre-Closing Notes" has the meaning set forth in Section 6.8(b).
           -----------------

          "Preferred Stock" means the shares of Series A Preferred Stock, Series
           ---------------
C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series
F Preferred Stock being issued hereunder.

          "Purchaser" has the meaning set forth in the preamble.
           ---------

          "Regulatory Problem" means, with respect to any SBIC Holder providing
           ------------------
Financing under this Agreement, any set of facts or circumstances wherein it has
been asserted by any governmental regulatory agency (or any SBIC Holder
reasonably believes in good faith that there is a substantial risk of such
assertion) that such SBIC Holder and its Affiliates are not entitled to hold, or
exercise any significant right with respect to, the Securities.

          "Related Agreements" means the Management Agreement, Employment
           ------------------
Agreements, License Purchase Agreement, Network Membership License Agreement,
Resale Agreement, Roaming Agreement and Stockholders Agreement.

          "Representatives" has the meaning set forth in Section 6.2(a).
           ---------------

          "Resale Agreement" means the Resale Agreement between the Company and
           ----------------
AT&T Wireless Services, Inc., or an Affiliate thereof, in substantially the form
of Exhibit C, as the same may be amended, modified or supplemented in accordance
with the terms thereof.

          "Restated Bylaws" means the Amended and Restated Bylaws of the
           ---------------
Company, in the form of Exhibit D, to be adopted as of the Closing Date, as the
same may be amended, modified or supplemented in accordance with the terms
thereof.

          "Restated Certificate" means the Amended and Restated Certificate of
           --------------------
Incorporation of the Company, in the form of Exhibit E, to be filed with the
office of the Secretary of State of the State of Delaware on the Closing Date,
as the same may be amended, modified or supplemented in accordance with the
terms thereof.

          "Roaming Agreement" means the Intercarrier Roamer Service Agreement
           -----------------
between the Company and AT&T Wireless Services, Inc., in substantially the form
of Exhibit F to be dated as of the Closing Date, as the same may be amended,
modified or supplemented in accordance with the terms thereof.

          "SBA" has the meaning set forth in Section 6.6(b).
           ---

          "SBA Compliance Documents" has the meaning set forth in 7.3(c).
           ------------------------
<PAGE>

          "SBIC" means a small business investment company licensed under the
           ----
SBIC Act.

          "SBIC Act" means the Small Business Investment Company Act of 1958, as
           --------
amended.

          "SBIC Holder" means each Purchaser that is an SBIC.
           -----------

          "SBIC Regulations" means the SBIC Act and the regulations issued
           ----------------
thereunder as set forth in 13 CFR 107 and 121, as amended.

          "Section 8.2 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.2.

          "Section 8.3 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.3.

          "Section 8.4 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.4.

          "Section 8.5 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.5.

          "Securities" means the shares of Preferred Stock and Common Stock
           ----------
being issued hereunder, together with any shares of Preferred Stock or Common
Stock issued upon conversion of or delivered in substitution or exchange for any
of the foregoing.

          "Securities Act" means the Securities Act of 1933, as amended.
           --------------

          "Series A Preferred Stock" has the meaning set forth in Section 2.5.
           ------------------------

          "Series C Preferred Stock" has the meaning set forth in Section 2.5.
           ------------------------

          "Series D Preferred Stock" has the meaning set forth in Section 2.5.
           ------------------------

          "Series E Preferred Stock" has the meaning set forth in Section 2.5.
           ------------------------

          "Series F Preferred Stock" has the meaning set forth in Section 2.5.
           ------------------------

          "Stockholders Agreement" means the Stockholders Agreement, by and
           ----------------------
among the Company, AT&T PCS, the Cash Equity Investors, the TeleCorp Investors
and the Management Stockholders, as stockholders, in substantially the form of
Exhibit G, to be dated as of the Closing Date, as the same may be amended,
modified or supplemented in accordance with the terms thereof.

          "Subsidiary" shall mean, with respect to any Person, a corporation or
           ----------
other entity of which 50% or more of the voting power or the voting equity
securities or equity interest is owned, directly or indirectly, by such Person.
<PAGE>

          "Supplemental Closing" means the consummation by the Company or one of
           --------------------
its wholly owned Subsidiaries of an acquisition of F-Block PCS Licenses in
respect of one million or more POPs (as defined in the Stockholders Agreement).

          "Supplemental Commitment" means, with respect to each Cash Equity
           -----------------------
Investor, the amount set forth opposite its name on Schedule I under the heading
"Supplemental Commitment."

          "TeleCorp" has the meaning set forth in the third recital.
           --------

          "TeleCorp Charter Amendment" has the meaning set forth in Section
           --------------------------
3.2(g).

          "TeleCorp Equity Interest" means, with respect to each TeleCorp
           ------------------------
Investor and Management Stockholder, the equity interest(s) in TeleCorp
specified opposite his or its name on Schedule II-A and II-B, respectively.

          "TeleCorp Financial Statements" has the meaning set forth in Section
           -----------------------------
5.16(d).

          "TeleCorp Investor" has the meaning set forth in the preamble.
           -----------------

          "TeleCorp Licenses" has the meaning set forth in the third recital.
           -----------------

          "Tracked Common Stock" means, collectively, the Class C Common Stock
           --------------------
and the Class D Common Stock.

          "Transactions" means the transactions contemplated by this Agreement
           ------------
and the Related Agreements.

          "Transfer Taxes" has the meaning set forth in Section 3.3.
           --------------

          "TWR" has the meaning set forth in the preamble.
           ---

          "TWR Licenses" has the meaning set forth in the second recital.
           ------------

          "Unfunded Commitment" has the meaning set forth in Section 2.2.
           -------------------

          "Voting Common Stock" means the Class A Voting Common Stock, par value
           -------------------
$.01 per share, of the Company.

          "Voting Preference Stock" means the Voting Preference Stock, par value
           -----------------------
$.01 per share, of the Company.

                                  ARTICLE II

                       CONTRIBUTIONS; PURCHASE AND SALE
                OF SECURITIES; CERTAIN RESTRICTIONS ON TRANSFER
<PAGE>

     2.1  AT&T PCS Contributions.  Upon the terms and subject to the conditions
hereof and in reliance upon the representations, warranties and agreements
herein contained:  (a) AT&T PCS and TWR (as applicable) shall partition and
disaggregate each AT&T PCS License (excluding the AT&T PCS Purchased Licenses)
and each TWR License (other than the Little Rock, Arkansas PCS License which
shall be disaggregated only) to create, as more particularly described on
Schedule 2.1, (i) Licenses (the "AT&T Contributed Licenses") providing in the
                                 -------------------------
aggregate the right to use 20 MHz of authorized frequencies within the
geographic area covered by the AT&T Contributed Licenses, and (ii) Licenses (the
"AT&T Retained Licenses") providing in the aggregate the right to use the
 ----------------------
balance of the authorized frequencies within such geographic area and the right
to use the authorized frequencies outside of such geographic area (but within
the geographic area covered by the AT&T PCS Licenses and the TWR Licenses), and
(b) at the Closing, AT&T PCS and TWR (as applicable) shall contribute to the
capital of the Company (or one or more wholly owned Subsidiaries of the Company
designated by the Company) the AT&T Contributed Licenses.

     2.2 Cash Equity Investor Contributions.

          (a) Upon the terms and subject to the conditions hereof and in
reliance upon the representations, warranties and agreements herein contained:
(i) effective upon the Closing, each Cash Equity Investor hereby irrevocably
commits, severally and not jointly, to contribute to the capital of the Company
an amount equal to its Aggregate Commitment plus, if and only if the
Supplemental Closing occurs, an additional amount equal to its Supplemental
Commitment, and (ii) at the Closing, each Cash Equity Investor shall contribute
to the capital of the Company an amount equal to its Initial Cash Contribution
and the Company shall accept such capital contribution. Each Cash Equity
Investor shall contribute to the capital of the Company an additional amount
equal to the excess of its Aggregate Commitment over its Initial Cash
Contribution in the amounts and on the dates specified on Schedule I (or such
earlier dates as may be established in accordance with the terms of the
Stockholders Agreement); provided that, in all events, the aggregate amount of
the Initial Cash Contributions plus the additional capital contributions in 1998
shall be no less than the Company's "operating losses," determined in accordance
with generally accepted accounting principles, for the 1998 calendar year.

          In addition, if and only if the Supplemental Closing occurs, each Cash
Equity Investor shall contribute to the capital of the Company supplemental
capital contributions in the amounts and on the dates specified in Schedule I
(or such other dates as may be established in accordance with the terms of the
Stockholders Agreement).

          The obligation of each Cash Equity Investor to make such additional
cash contributions in respect of its Aggregate Commitment and Supplemental
Commitment in accordance with this Section 2.2 and Section 3.10 of the
Stockholders Agreement is sometimes referred to herein as the "Unfunded
                                                               --------
Commitment." Nothing herein shall be construed to require any Cash Equity
- ----------
Investor to make contributions in an aggregate amount in excess of its Aggregate
Commitment plus, if applicable, its Supplemental Commitment or later than the
third anniversary of the Closing Date.

          (b) Each Cash Equity Investor acknowledges and agrees that, if the
Closing occurs, its obligation to make capital contributions to the Company
after the Closing Date in respect of its Unfunded Commitment constitutes an
irrevocable and unconditional obligation, and shall not be subject to
counterclaim, set-off, deduction or defense, or to abatement, suspension,
<PAGE>

deferment, diminution or reduction for any reason whatsoever. By way of
amplification, and not in limitation of the foregoing, each Cash Equity Investor
further acknowledges and agrees to fulfill its obligations in respect of its
Unfunded Commitment regardless of any claims it may have against any other
Person (whether or not related to the Transactions) and regardless of the
existence or non-existence of any facts or circumstances (whether or not such
facts and circumstances existed on the date hereof or the Closing Date or were
then known by it).

     2.3 TeleCorp Investor Contributions.  Upon the terms and subject to the
conditions hereof and in reliance upon the representations, warranties and
agreements herein contained, at the Closing each TeleCorp Investor shall
contribute to the capital of the Company all of such TeleCorp Investor's right,
title and interest in and to its TeleCorp Equity Interest(s), which interests
are described on Schedule II-A.

     2.4 Management Stockholder Contributions. Upon the terms and subject to
the conditions hereof and in reliance upon the representations, warranties and
agreements herein contained, at the Closing each Management Stockholder shall
contribute to the capital of the Company all of such Management Stockholder's
right, title and interest in and to all of his TeleCorp Equity Interest(s),
which interests are described on Schedule II-B.

     2.5 Purchase and Sale of Securities at Closing. Upon the terms and subject
to the conditions hereof and in reliance upon the representations, warranties
and agreements herein contained, at the Closing, in consideration of the
Contributions, the Company shall issue, sell and deliver to the Purchasers and
the Management Stockholders the following securities:

          (a) to each of AT&T PCS and TWR, the number of shares set forth
opposite its name on Schedule V of the following: (i) the Company's Series A
Convertible Preferred Stock par value $.01 per share (the "Series A Preferred
                                                           ------------------
Stock"), the terms of which are set forth in the Restated Certificate, which,
- -----
subject to the terms thereof, are convertible on and after the eighth
anniversary of the Closing Date into shares of newly issued Non-Voting Common
Stock; (ii) the Company's Series D Preferred Stock, par value $.01 per share
(the "Series D Preferred Stock"), the terms of which are set forth in the
      ------------------------
Restated Certificate; (iii) the Company's Series F Preferred Stock, par value
$.01 per share (the "Series F Preferred Stock"), the terms of which are set
                     ------------------------
forth in the Restated Certificate; and (iv) Tracked Common Stock; and

          (b) to each Cash Equity Investor, TeleCorp Investor and Management
Stockholder, the number of shares set forth opposite his or its name on Schedule
V of the following: (i) the Company's Series C Preferred Stock, par value $.01
per share (the "Series C Preferred Stock"), the terms of which are set forth in
                ------------------------
the Restated Certificate, which, subject to the terms thereof, are convertible
into shares of newly issued Common Stock upon the Company's initial public
offering; (ii) the Company's Series E Preferred Stock, par value $.01 per share
(the "Series E Preferred Stock"), the terms of which are set forth in the
      ------------------------
Restated Certificate; and (iii) Common Stock.

     2.6 Additional Purchase by Cash Equity Investors. On the date (if any) that
the Supplemental Closing occurs, the Company shall issue, sell and deliver to
each Cash Equity Investor, the number of shares of Series C Preferred Stock and
Common Stock set forth opposite its name on Schedule I under the heading "Number
of Supplemental Shares."
<PAGE>

     2.7  Restrictive Legends. Each certificate representing Securities
(including Securities originally issued hereunder or delivered upon conversion
of the Preferred Stock or Common Stock, or delivered in substitution or exchange
for any of the foregoing) will bear a legend reading substantially as follows
until such Securities have been sold pursuant to an effective registration
statement under the Securities Act, Rule 144 under the Securities Act, or an
opinion of counsel reasonably satisfactory in form and substance to the Company
and otherwise in full compliance with any other applicable restrictions on
transfer, including those contained in this Agreement and the Stockholders
Agreement:

          "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE BEEN ACQUIRED FOR
     INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
     AS AMENDED (THE' ACT'), OR UNDER ANY STATE SECURITIES OR 'BLUE SKY' LAWS,
     SAID SECURITIES MAY NOT BE SOLD, TRANSFERRED, ASSIGNED, PLEDGED,
     HYPOTHECATED OR OTHERWISE DISPOSED OF, UNLESS AND UNTIL REGISTERED UNDER
     THE ACT AND THE RULES AND REGULATIONS THEREUNDER AND ALL APPLICABLE STATE
     SECURITIES OR 'BLUE SKY' LAWS OR EXEMPTED THEREFROM UNDER THE ACT AND ALL
     APPLICABLE STATE SECURITIES OR 'BLUE SKY' LAWS."

     2.8  Use of Proceeds. The Company shall use the net cash proceeds of its
sale of Securities hereunder solely (i) for capital and other expenditures
relating to the conduct of the Business (as defined in the Stockholders
Agreement) by the Company and its Subsidiaries, (ii) to pay the purchase price
payable under the License Purchase Agreement, (iii) to repay the Bridge Notes
and the indebtedness of TeleCorp to the United States Department of the Treasury
pursuant to the terms thereof, (iv) to consummate the Supplemental Closing (it
any), and (v) to pay fees and expenses incurred in connection with the
Transactions.

                                  ARTICLE III

                                    CLOSING

     3.1  Time and Place of Closing. Upon the terms and subject to the
conditions hereof, the closing of the Transactions (the "Closing") shall take
                                                         -------
place at the offices of Mayer, Brown & Platt, 1675 Broadway, New York, New York,
at 10:00 a.m. local time on the twelfth business day following the date of
receipt of the last Consent required by subsections (a) through (c) of Section
7.1, or at such other place and/or time and/or on such other date as the parties
may agree or as may be necessary to permit the fulfillment or waiver of the
conditions set forth in Article VII (the "Closing Date").
                                          ------------

     3.2  Closing Actions and Deliveries.  Upon the terms and subject to the
satisfaction or waiver by the appropriate parties, if applicable, of the
conditions set forth in Article VII, to effect the purchase and sale of the
Securities and consummate the other Transactions, the parties shall on the
Closing Date take the following actions:

            (a) AT&T Party Contributions. Each of AT&T PCS and TWR shall execute
and deliver to the Company one or more instruments of assignment, substantially
in the form of Exhibit M, sufficient to assign to the Company (or one or more
wholly owned
<PAGE>

Subsidiaries of the Company designated by the Company) the AT&T Contributed
Licenses (such assignments being herein collectively referred to as the "AT&T
License Transfer").
<PAGE>

          (b) Cash Equity Investor Contributions.

                 (i)   Each Cash Equity Investor shall deliver to the Company by
wire transfer of immediately available funds to the account designated by the
Company on or prior to the Closing Date an amount equal to its Initial Cash
Contribution, as set forth on Schedule I. Each Cash Equity Investor shall
convert the principal amount of its Pre-Closing Notes, together with the
interest thereon, into a capital contribution to the Company, and the principal
amount of Pre-Closing Notes (but not any interest thereon) so converted shall be
credited against its Initial Cash Contribution.

                 (ii)  Immediately prior to the Closing, the Bridge Notes shall
be converted into shares of Series A Preferred Stock of TeleCorp, and the
principal amount of Bridge Notes so converted, together with interest accrued
thereon through the date hereof only, shall be credited against the respective
Initial Cash Contributions of the holders thereof, and all Liens in respect of
the Bridge Notes shall be released and terminated by the holders thereof.

          (c) TeleCorp Investor Contributions. Each TeleCorp Investor shall
execute and deliver to the Company one or more stock certificates, together with
stock powers duly executed in blank, representing all of the TeleCorp Equity
Interests owned by such TeleCorp Investor, as set forth on Schedule II-A.

          (d) Management Stockholder Contribution. Each Management Stockholder
shall deliver to the Company one or more stock certificates, together with stock
Powers duly executed in blank, representing all of the TeleCorp Equity Interests
owned by such Management Stockholder, as set forth on Schedule II-B.

          (e) Delivery of Securities. The Company shall deliver: (i) to each of
AT&T PCS and TWR certificates, duly executed by authorized signatories of the
Company, representing the shares of Series A Preferred Stock, Series D Preferred
Stock, Series F Preferred Stock and Tracked Common Stock to be issued to AT&T
PCS and TWR in accordance with Section 2.5; (ii) to each Cash Equity Investor
and TeleCorp Investor, certificates, duly executed by authorized signatories of
the Company, representing the shares of Series C Preferred Stock and Common
Stock to be issued to each of them in accordance with the terms of Section 2.5;
and (iii) to each Management Stockholder, certificates, duly executed by
authorized signatories of the Company, representing (x) the shares of Series E
Preferred Stock and Common Stock to be issued to each of them in accordance with
the terms of Section 2.5 and (y) five fully paid and non-assessable shares of
Voting Preference Stock to be issued to them in exchange for their five shares
of Old Common Stock, which shall be surrendered to the Company for cancellation.

          (f) Restated Certificate. Duly authorized officers of the Company
shall execute the Restated Certificate and cause it to be filed with the office
of the Secretary of State of the State of Delaware.

          (g) TeleCorp Matters. Duly authorized officers of TeleCorp shall
execute an amendment to the articles of incorporation of TeleCorp in the form of
Exhibit N (the "TeleCorp Charter Amendment") and cause it to be filed with the
office of the
<PAGE>

Secretary of State of the State of Delaware. Each of the directors and officers
of TeleCorp shall tender his or her resignation as such effective as of the
Closing.

               (h)  Other Deliveries. The parties shall execute and deliver or
cause to be executed and delivered all other documents, instruments, opinions
and certificates contemplated by this Agreement or the Related Agreements to be
delivered at the Closing or necessary and appropriate in order to consummate the
Transactions contemplated to be consummated on the Closing Date.

     3.3  Payment of Transfer Taxes. The Company shall pay or cause to be paid
at the Closing or, if due thereafter, promptly when due, all gross receipts
taxes, gains taxes (including, without limitation, real property gains tax or
other similar taxes), transfer taxes, sales taxes, stamp taxes, and any other
taxes, but excluding any Federal, State or local income taxes (collectively,
"Transfer Taxes"), payable in connection with the transfer of the Contributions.
 --------------

     3.4  Issuance of Additional Shares.  In addition to the shares of Preferred
and Common Stock issued to the Cash Equity Investors at the Closing, on the date
of the Supplemental Closing (if any), the Company shall deliver to each such
Cash Equity Investor, certificates, duly executed by authorized signatories of
the Company, representing the shares of Series C Preferred Stock and Common
Stock to be issued to such Cash Equity Investor in accordance with the terms of
Section 2.6.

                                  ARTICLE IV

                 REPRESENTATIONS AND WARRANTIES OF PURCHASERS

               Each of AT&T PCS and TWR, as to itself and each other AT&T Party,
and each other Purchaser, as to itself, represents and warrants to the Company
and each of the other parties as follows:

     4.1  Organization; Power and Authority.

               (a)  Each AT&T Party is a corporation, duly organized, validly
existing and in good standing under the laws of its jurisdiction of organization
and has the requisite corporate power and authority to own, lease and operate
its properties and to carry on its business as now being conducted. Each of the
Cash Equity Investors and the TeleCorp Investors is a corporation, limited
liability company, general partnership or limited partnership, duly organized,
validly existing and in good standing under the laws of its jurisdiction of
organization and has the requisite power and authority to own, lease and operate
its properties and to carry on its business as now being conducted.

               (b)  It has the requisite power and authority to execute, deliver
and perform this Agreement, each of the Related Agreements to which it is a
party and each other instrument, document, certificate and agreement required or
contemplated to be executed, delivered and performed by it hereunder and
thereunder to which it is or will be a party.
<PAGE>

               (c)  It is duly qualified to do business in each jurisdiction
where the character of its properties owned or held under lease or the nature of
its activities makes such qualification necessary other than any such
jurisdiction in which the failure to be so qualified would not have a Material
Adverse Effect on it or materially adversely affect the Transactions or its
ability to perform its obligations under the Related Agreements.

               (d)  The execution and delivery of this Agreement by it and the
consummation of the Transactions by it, including without limitation the
execution and delivery of the Related Agreements to which it is a party, have
been duly and validly authorized by its Board of Directors (or equivalent body)
and no other proceedings on its part which have not been taken (including,
without limitation, approval of its stockholders, partners or members) are
necessary to authorize this Agreement or to consummate the Transactions.

               (e)  This Agreement has been duly executed and delivered by it
and constitutes its valid and binding obligation, enforceable against it in
accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity. Each of the Related Agreements to which it is a party
shall be duly executed and delivered by it at (or prior to) the Closing and,
upon such execution and delivery, shall constitute its valid and binding
obligation, enforceable against it in accordance with its terms, except as such
enforceability may be limited by bankruptcy, insolvency, moratorium or other
similar laws affecting or relating to enforcement of creditors' rights generally
and may be subject to general principles of equity.

               (f)  As of the Closing Date, after giving effect to the
Transactions, it is not in breach of any obligation under this Agreement or any
of the Related Agreements.

               (g)  TWR is an indirect wholly owned Subsidiary of AT&T Corp.

     4.2  Consents; No Conflicts. Neither the execution, delivery and
performance by it of this Agreement or the Related Agreements to which it is a
party nor the consummation of the Transactions will (a) conflict with, or result
in a breach or violation of, any provision of its organizational documents; (b)
subject to obtaining the Consents set forth on Schedule 4.2, constitute, with or
without the giving of notice or passage of time or both, a breach, violation or
default, create a Lien, or give rise to any right of termination, modification,
cancellation, prepayment or acceleration, under (i) any Law or License or (ii)
any note, bond, mortgage, indenture, lease, agreement or other instrument, in
each case which is applicable to or binding upon it or any of its assets; or (c)
require any Consent, other than those set forth on Schedule 4.2 or the approval
of its board of directors, general partner, stockholders or similar constituent
bodies, as the case may be (which approvals have been obtained), except in each
case, where such breach, violation, default, Lien, right, or the failure to
obtain or give such Consent would not have a Material Adverse Effect on it or
materially adversely affect the Transactions or its ability to perform its
obligations under the Related Agreements. To its knowledge, there is no fact
relating to it or its Affiliates that would be reasonably expected to prevent it
from consummating the Transactions or performing its obligations under the
Related Agreements or disqualify the Company from obtaining the Consents
(including without limitation, FCC Consent) required in order to consummate the
AT&T License Transfer and the contribution of the TeleCorp Equity Interests, as
provided for in this Agreement.
<PAGE>

     4.3  Litigation. There is no action, proceeding or investigation pending
or, to its knowledge, threatened against it or any of its properties or assets
that would be reasonably expected to have an adverse effect on its ability to
consummate the Transactions to which it is a party or to fulfill its obligations
under this Agreement or any of the Related Agreements to which it is a party, or
which seeks to prevent or challenge the Transactions.

     4.4  FCC Compliance. It complies with all eligibility rules issued by the
FCC to hold broadband PCS licenses, including without limitation, FCC rules on
foreign ownership and the CMRS spectrum cap. The fact that it owns the interest
in the Company contemplated by this Agreement and the Related Agreements will
not cause the Company or its wholly owned Subsidiaries to be ineligible under
FCC rules to hold PCS licenses in general or the licenses to be held by the
Company's wholly owned Subsidiaries.

     4.5  Brokers. It has not employed any broker, finder or investment banker
or incurred any liability for any brokerage fees, commissions or finder's fees
in connection with the Transactions.

     4.6  AT&T PCS Licenses.

               (a)  AT&T PCS is the authorized legal holder, free and clear of
any Liens, of the AT&T PCS Licenses, true and correct copies of which are
attached to Schedule III-A hereto. The AT&T PCS Licenses are, and on the Closing
Date each of the AT&T PCS Licenses will be, valid and in full force and effect.
Except for proceedings affecting the PCS or wireless communications services
industry generally, including investigations by governmental agencies of bidding
practices of bidders in the FCC auctions of PCS spectrum, there is not pending,
nor to the knowledge of AT&T PCS, threatened against AT&T PCS or against the
AT&T PCS Licenses, any application, action, petition, objection or other
pleading, or any proceeding with the FCC which questions or contests the
validity of, or seeks the revocation, non-renewal or suspension of, any of the
AT&T PCS Licenses, which seeks the imposition of any modification or amendment
with respect thereto, or which adversely affects the ability of the Company to
employ the AT&T Contributed Licenses or the AT&T PCS Purchased Licenses in its
business after the Closing Date. The AT&T PCS Licenses are not subject to any
conditions other than those appearing on the face of the Licenses themselves and
those imposed by FCC Law.

               (b)  TWR is the authorized legal holder, free and clear of any
Liens, of the TWR Licenses, true and correct copies of which are attached to
Schedule III-A hereto. The TWR Licenses are, and on the Closing Date each of the
TWR Licenses will be, valid and in full force and effect. Except for proceedings
affecting the PCS or wireless communications services industry generally,
including investigations by governmental agencies of bidding practices of
bidders in the FCC auctions of PCS spectrum, there is not pending, nor to the
knowledge of TWR, threatened against TWR or against the TWR Licenses, any
application, action, petition, objection or other pleading, or any proceeding
with the FCC which questions or contests the validity of, or seeks the
revocation, non-renewal or suspension of, any of the TWR Licenses, which seeks
the imposition of any modification or amendment with respect thereto, or which
adversely affects the ability of the Company to employ the TWR Licenses in its
business after the Closing Date. The TWR Licenses are not subject to any
conditions other than those appearing on the face of the Licenses themselves and
those imposed by FCC Law.
<PAGE>

     4.7   Capital Commitment. Each Cash Equity Investor has, and will have on
the Closing Date and on any subsequent date on which it is obligated to make a
capital contribution, cash available to it in an amount sufficient to make its
respective Cash Equity Investor Contributions in accordance with the terms of
Section 2.2.

     4.8   No Distribution. It is acquiring the Securities to be purchased by it
hereunder for the purpose of investment and not with a view to or for sale in
connection with any distribution thereof (other than in compliance with the
Securities Act and all applicable state securities laws).

     4.9   Investor Acknowledgments.

               (a)  Each Purchaser is an "accredited investor" as defined in
Regulation D of the Securities Act. Its representatives have been provided an
opportunity to ask questions of, and have received answers thereto from, the
Company and its representatives regarding the terms and conditions of its
purchase of Securities, and the Company and its proposed business generally, and
have obtained all additional information requested by it to verify the accuracy
of all information furnished to it in connection with such purchase.

               (b)  It has such knowledge and experience in financial and
business affairs that it is capable of evaluating the merits and risks of
purchasing the Securities it is purchasing hereunder.

               (c)  It is not relying on and acknowledges that no representation
is being made by any other Purchaser, the Company or any of its officers,
employees, Affiliates, agents or representatives, or any Management Stockholder,
except for representations and warranties expressly set forth in this Agreement
and the Related Agreements, and, in particular, it is not relying on, and
acknowledges that no representation is being made in respect of, (x) any
projections, estimates or budgets delivered to or made available to them of
future revenues, expenses or expenditures, or future results of operations and
(y) any other information or documents delivered or made available to it or its
representatives, except for representations and warranties expressly set forth
in this Agreement and the Related Agreements.

               (d)  In deciding to invest in the Company, it has relied
exclusively on the representations and warranties expressly set forth in this
Agreement and the Related Agreements and the investigations made by itself and
its representatives and its and such representatives' knowledge of the industry
in which the Company proposes to operate. Based solely on such representations
and warranties and such investigations and knowledge, it has determined that the
Securities it is acquiring are a suitable investment for it.

     4.10  Institutional Investors. Each Purchaser of shares of Class C Common
Stock represents as to itself that it is an Institutional Investor, as such term
if used in 47 C.F.R. Section 24.720(h).
<PAGE>

                                   ARTICLE V

                REPRESENTATIONS AND WARRANTIES OF THE COMPANY,
            THE TELECORP INVESTORS AND THE MANAGEMENT STOCKHOLDERS

               The Company and the Management Stockholders represent and
warrant, jointly and severally, as to the Company and its Subsidiaries, if any
(except that (x) the representations and warranties as to the Company set forth
in Sections 5.1(f), 5.7(b), 5.8, 5.11(b)(ii) and 5.13 are not being made by the
Management Stockholders and (y) the representations and warranties as to the
Company set forth, in Sections 5.2 and 5.4 are being made by the Management
Stockholders only as of the date hereof and not as of the Closing Date), to the
Purchasers, and each Management Stockholder represents and warrants, severally
and not jointly, as to itself, and each TeleCorp Investor and Management
Stockholder represents, jointly and severally, as to TeleCorp (except that the
representation and warranty set forth in Section 5.16(b)(iv) is being made
severally by each TeleCorp Investor and Management Stockholder as to itself
only), to the Company and each of the other parties, as follows:

     5.1  Organization, Power and Authority.

               (a)  Each of the Company and each of its Subsidiaries is a
corporation, duly organized, validly existing and in good standing under the
laws of the jurisdiction of its incorporation and has the requisite corporate
power and authority to own, lease and operate its properties and to carry on its
business as now being conducted and proposed to be conducted. The Company has
furnished to the Purchasers a true and correct copy of its and each of its
Subsidiaries' Certificate of Incorporation and Bylaws as in effect on the date
hereof and as of the Closing Date. As of the Closing Date, the Bylaws of the
Company shall read in full as set forth in the Restated Bylaws, which shall be
in full force and effect.

               (b)  It has the requisite power, authority and/or legal capacity
to execute, deliver and perform this Agreement, each of the Related Agreements
to which it is a party and each other instrument, document, certificate and
agreement required or contemplated to be executed, delivered and performed by it
hereunder and thereunder to which it is or will be a party.

               (c)  Each of the Company and each of its Subsidiaries is duly
qualified to do business in each jurisdiction where the character of its
properties owned or held under lease or the nature of its activities makes such
qualification necessary other than any such jurisdiction in which the failure to
be so qualified would not have a Material Adverse Effect on the Company or such
Subsidiary or materially adversely affect the Transactions or its ability to
perform its obligations under the Related Agreements.

               (d)  The execution and delivery of this Agreement by the Company
and the consummation of the Transactions by the Company, including without
limitation the execution and delivery of the Related Agreements to which it is a
party, have been duly and validly authorized by the Board of Directors of the
Company and, except for the filing of the Restated Certificate with the office
of the Secretary of State of Delaware, no other proceedings on the part of the
Company which have not been taken (including, without limitation, approval of
its shareholders) are necessary to authorize this Agreement or to consummate the
Transactions.
<PAGE>

               (e)  This Agreement has been duly executed and delivered by the
Company and each Management Stockholder and constitutes the valid and binding
obligation of the Company, and such Management Stockholder, enforceable against
it in accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity. Each of the Related Agreements to which it is a party
shall be duly executed and delivered by it at (or prior to) the Closing and,
upon such execution and delivery, shall constitute the valid and binding
obligation of it, enforceable against it in accordance with its terms, except as
such enforceability may be limited by bankruptcy, insolvency, moratorium or
other similar laws affecting or relating to enforcement of creditors' rights
generally and may be subject to general principles of equity.

               (f)  As of the Closing, after giving effect to the Transactions,
neither the Company nor any Management Stockholder is in breach of any
obligation under this Agreement, any Related Agreement or any of the Credit
Documents.

     5.2  Consents; No Conflicts. Neither the execution, delivery and
performance by the Company and the Management Stockholders of this Agreement and
the Related Agreements to which it is a party nor the consummation of the
Transactions will (a) conflict with, or result in a breach or violation of, any
provision of the Company's organizational documents; (b) subject to obtaining
the Consents set forth on Schedule 5.2, constitute, with or without the giving
of notice or passage of time or both, a breach, violation or default, create a
Lien, or give rise to any right of termination, modification, cancellation,
prepayment or acceleration, under (i) any Law or License, or (ii) any note,
bond, mortgage, indenture, lease, agreement or other instrument, in each case
which is applicable to or binding upon the Company or any of its assets; or (c)
require any Consent on the part of the Company or any Management Stockholder,
other than those set forth on Schedule 5.2 or the approval of the Company's
Board of Directors (which approval has been obtained), except in each case where
such breach, violation, default, Lien, right, or the failure to obtain or give
such Consent would not have a Material Adverse Effect on it or materially
adversely affect the Transactions, its ability to perform its obligations under
the Related Agreements or the operation of the Company's business after the
Closing Date. To its knowledge, there is no fact relating to it or its
Affiliates that would be reasonably expected to prevent it from consummating the
Transactions or performing its obligations under the Related Agreements or
disqualify the Company from obtaining the Consents (including without
limitation, FCC Consent) required in order to consummate the AT&T License
Transfer and the contribution of the TeleCorp Equity Interests, as provided for
in this Agreement.

     5.3  Litigation. There is no action, proceeding or investigation pending
or, to the knowledge of the Company or the Management Stockholders, threatened
against the Company or any of the Management Stockholders or any of their
respective properties or assets that would have an adverse effect on its ability
to consummate the Transactions to which it is a party or to fulfill its
obligations under this Agreement or any of the Related Agreements to which it is
a party, or, in the case of the Company, to operate its business after the
Closing Date, or which seeks to prevent or challenge the Transactions. There is
no judgment, decree, injunction, rule or order outstanding against the Company
which would limit in any material respect the ability of the Company to operate
its business in the manner currently contemplated.

     5.4  FCC Compliance. It complies with all eligibility rules issued by the
FCC to hold broadband PCS licenses, including without limitation, FCC rules on
foreign ownership and the CMRS spectrum cap. The fact that it owns the interest
in the Company contemplated by this Agreement and the Related Agreements will
not cause the Company or its wholly owned Subsidiaries to be ineligible under
FCC rules to
<PAGE>

hold PCS licenses in general or the licenses to be held by the Company's wholly
owned Subsidiaries. The Management Stockholders, in aggregate, satisfy the
financial requirements established by the FCC in 47 CFR (S)24.720(b)(2) for a
"very small business."

     5.5  Brokers. Neither the Company nor any of the Management Stockholders
has employed any broker, finder or investment banker or incurred any liability
for any brokerage fees, commissions or finder's fees in connection with the
Transactions, except for Chase Securities Inc., whose fee of $1.0 million will
be paid by the Company at the Closing.

     5.6  Newly Formed Company. The Company was organized on November 14, 1997,
and, except for assets and liabilities relating to Pre-Closing Expenditures and
Pre-Closing Advances and activities undertaken in connection therewith, since
its organization has at no time (i) had assets or liabilities in excess of
$1,000,000 in the aggregate or (ii) carried on any activities or incurred any
liabilities or obligations other than in connection with its organization and
with the consummation of the Transactions.

     5.7  Capitalization.

               (a)  As of the date hereof and as of the Closing Date before
giving effect to the filing of the Restated Certificate, the authorized capital
stock of the Company consists of 20,000 shares of common stock, no par value per
share ("Old Common Stock"), of which ten shares are issued and outstanding, have
been validly issued and are fully paid and nonassessable. As of the date hereof
and as of the Closing Date before giving effect to the Transactions, each of
Gerald T. Vento and Thomas H. Sullivan owns beneficially and of record five
shares of Old Common Stock, free and clear of any Liens. There are not on the
date hereof nor will there be on or as of the Closing Date, before giving effect
to the Transactions, any existing options, warrants, calls, subscriptions, or
other rights, or other agreements or commitments, obligating the Company to
issue, transfer or sell any shares of capital stock of the Company.

               (b)  As of the Closing Date, after giving effect to the filing of
the Restated Certificate, the authorized capital stock of the Company will
consist of 700,000 shares of Voting Common Stock, 700,000 shares of Non-Voting
Common Stock, ten shares of Voting Preference Stock, 1,000 shares of Class C
Common Stock, 3,000 shares of Class D Common Stock, 70,000 shares of Series A
Preferred Stock, 140,000 shares of Series B Preferred Stock, 140,000 shares of
Series C Preferred Stock, 35,000 shares of Series D Preferred Stock, 20,000
shares of Series E Preferred Stock, 35,000 shares of Series F Preferred Stock
and 70,000 shares of Senior Common Stock. As of the Closing Date, after giving
effect to the Transactions (but excluding the Securities issued pursuant to
Section 2.6), there will be issued and outstanding the shares of Preferred Stock
and Common Stock set forth on Schedule V. The record and beneficial owners of
such outstanding shares of Common Stock and Preferred Stock, as of the Closing
Date, after giving effect to the Transactions, are set forth on Schedule V. On
the Closing Date, after giving effect to the Transactions, there will not be any
existing options, warrants, calls, subscriptions, or other rights, or other
agreements or commitments, obligating the Company to issue, transfer or sell any
shares of capital stock of the Company, except the Preferred Stock and the
Common Stock (other than the Voting Preference Stock).
<PAGE>

     5.8  Shares.  The shares of Preferred Stock and Common Stock being issued
to the Purchasers hereunder, when issued and paid for pursuant to the terms of
this Agreement, will be duly authorized, validly issued, fully paid and
nonassessable, and will be free of any Liens caused or created by the Company,
except as set forth in the Stockholders Agreement and the Restated Certificate.
The shares of Common Stock or Preferred Stock, as the case may be, issued upon
conversion of the Preferred Stock and the Common Stock (other than the Voting
Preference Stock), when issued pursuant to the terms thereof, will be validly
issued, fully paid and nonassessable, and will be free of any Liens caused or
created by the Company, except as set forth in the Stockholders Agreement and
the Restated Certificate.

     5.9  No Undisclosed Liabilities; Subsidiaries. As of the date hereof and as
of the Closing Date before giving effect to the Transactions, the Company has no
indebtedness or liability of any nature whatsoever, absolute or contingent,
liquidated or unliquidated, except for liabilities consisting of the Bridge
Notes, the Pre-Closing Advances and liabilities incurred in connection with Pre-
Closing Expenditures. The Company owns all of the outstanding shares of capital
stock of each of its Subsidiaries, free and clear of any Liens, except Liens
granted to the lenders pursuant to the Credit Documents. Prior to the Closing
Date, the Company shall furnish to each of the Purchasers a complete list of its
direct and indirect Subsidiaries indicating the jurisdictions in which each such
Subsidiary is organized or qualified to conduct business.

     5.10 Offering of Securities.

          (a)  None of the Company, any Management Stockholder or any Person
acting on its behalf has offered the Securities or any similar equity securities
of the Company for sale to, or solicited any offers to buy Securities or any
similar equity securities of the Company from, any Person, other than the
Purchasers and a limited number of other "accredited investors" (as defined in
Rule 501 (a) under the Securities Act).

          (b)  None of the Company, any Management Stockholder or any Person
acting on its behalf will, directly or indirectly, take any action which might
subject the offering, issuance or sale of the Securities to the registration and
prospectus delivery requirements of Section 5 of the Securities Act.

          (c)  Assuming the accuracy of the representations and warranties of
the Purchasers contained in Sections 4.9 and 4.10, each of the offering and sale
of Securities under this Agreement to the Purchasers complies with all
applicable requirements of Federal and state securities laws.

     5.11 Loan Documents.

          (a)  Prior to the date hereof, the Company has delivered to each of
the Purchasers a true and correct copy of a commitment letter, dated January 22,
1998, from Chase Securities Inc., relating to a proposed $435 million senior
secured credit facility. Such commitment letter has been executed and delivered
by the financial institutions referred to above and the Company, and is in full
force and effect and, as of the date hereof, such commitment letter has not been
modified or withdrawn.

          (b)  (i) Prior to the Closing, the Company shall have delivered to
each of the Purchasers a true and correct copy of each of the Credit Documents,
together with all amendments and modifications thereto. Such documents
(including the exhibits and
<PAGE>

schedules thereto) shall comprise a full and complete copy of all agreements
between the parties thereto with respect to the subject matter thereof and
transactions related thereto, and there shall be no agreements or
understandings, oral or written, or side agreements not contained therein that
relate to or modify the substance thereof.

          (ii) As of the Closing Date, the Credit Documents shall have been duly
authorized by all necessary corporate action on the part of the Company, shall
have been validly executed and delivered by the Company and shall be the legal,
valid and binding obligation of the Company, enforceable in accordance with its
terms, except as such enforceability may be limited by bankruptcy, insolvency,
moratorium or other similar laws affecting or relating to enforcement of
creditors' rights generally and may be subject to general principles of equity.
As of the Closing Date, the Credit Documents shall be in full force and effect,
none of the provisions thereof shall have been waived by any party thereto, and
no "Default" or "Event of Default" (as such terms are defined in the Credit
Agreement) shall have occurred and be continuing.

     5.12 Minimum Build-Out Plan. The Company's Minimum Build-Out Plan in
respect of the construction of a PCS system in the Company Territory is attached
as Schedule 5.12.

     5.13 Small Business Matters. The Company, together with its "affiliates"
(as that term is defined in Title 13, Code of Federal Regulations, Section
121.103), is a "Small Business" within the meaning of the SBIC Act and the
regulations thereunder, including Title 13, Code of Federal Regulations,
Sections 107.50, 107.700 and 121.301(c). The information regarding the Company
and its Affiliates set forth in the Small Business Administration Form 480, Form
652 and Parts A and B of Form 1031 delivered at the Closing is accurate and
complete. Copies of such forms shall have been completed and executed by the
Company and delivered to each Purchaser which is an SBIC at the Closing together
with a written statement of the Company regarding its planned use of the
proceeds from the sale of the Securities. Neither the Company nor any
Subsidiary: (i) presently engages in, and none of them shall hereafter engage
in, any activities, or (ii) shall use directly or indirectly the proceeds from
the sale of the Securities for any purpose, which, in either case, a SBIC is
prohibited from engaging in or providing funds for by the SBIC Act and the
regulations thereunder (including Title 13, Code of Federal Regulations, Section
107.720).

     5.14 No Distribution. Each Management Stockholder is acquiring the
Securities to be purchased by him hereunder for the purpose of investment and
not with a view to or for sale in connection with any distribution thereof
(other than in compliance with the Securities Act and all applicable state
securities laws).

     5.15 Investor Acknowledgments.

          (a)  Each Management Stockholder is an "accredited investor" as
defined in Regulation D of the Securities Act. He has been provided an
opportunity to ask questions of, and has received answers thereto from, the
Company and its representatives regarding the terms and conditions of his
purchase of Securities, and the Company and its proposed business generally, and
has obtained all additional information requested by him to verify the accuracy
of all information furnished to him in connection with such purchase.
<PAGE>

          (b)  Each Management Stockholder has such knowledge and experience in
financial and business affairs that he is capable of evaluating the merits and
risks of purchasing the Securities he is purchasing hereunder.

          (c)  Each Management Stockholder is not relying on and acknowledges
that no representation is being made by any other Purchaser, the Company or any
of its officers, employees, Affiliates, agents or representatives, or any other
Management Stockholder, except for representations and warranties expressly set
forth in this Agreement and the Related Agreements, and, in particular, he is
not relying on, and acknowledges that no representation is being made in respect
of, (x) any projections, estimates or budgets delivered to or made available to
him of future revenues, expenses or expenditures, or future results of
operations and (y) any other information or documents delivered or made
available to him, except for representations and warranties expressly set forth
in this Agreement and the Related Agreements.

          (d)  In deciding to invest in the Company, each Management Stockholder
has relied exclusively on the representations and warranties expressly set forth
in this Agreement and the Related Agreements and the investigations made by
himself and his representatives and his and such representatives' knowledge of
the industry in which the Company proposes to operate. Based solely on such
representations and warranties and such investigations and knowledge, he has
determined that the Securities he is acquiring are a suitable investment for
him.


     5.16 Representations as to TeleCorp.

          (a)  TeleCorp is a corporation, duly organized, validly existing and
in good standing under the laws of the jurisdiction of its incorporation and has
the requisite corporate power and authority to own, lease and operate its
properties and to carry on its business as now being conducted and proposed to
be conducted. TeleCorp has furnished to the Company and the Purchasers a true
and correct copy of its Certificate of Incorporation and Bylaws as in effect on
the date hereof and as of the Closing Date. TeleCorp is duly qualified to do
business in each jurisdiction where the character of its properties owned or
held under lease or the nature of its activities makes such qualification
necessary other than any such jurisdiction in which the failure to be so
qualified would not have a Material Adverse Effect on TeleCorp or would
materially adversely affect the Transactions.

          (b)  (i) As of the date hereof and as of the Closing Date before
giving effect to the filing of the TeleCorp Charter Amendment, the authorized
capital stock of TeleCorp consists of 125,000 shares of Class A Common Stock of
which 4,833.751 shares are issued and outstanding, 175,000 shares of Class B
Common Stock of which 1,973.717 shares are issued and outstanding, 175,000
shares of Class C Common Stock of which 12,573.533 shares are issued and
outstanding, and 200,000 shares of Preferred Stock of which 6,000 shares are
designated as Series A Preferred Stock and 367.365 shares are issued and
outstanding, and all such shares have been validly issued and are fully paid and
non-assessable. The record and beneficial owners of the issued and outstanding
shares of each class of capital stock of TeleCorp as of the date hereof and as
of the Closing Date, before giving effect to the Transactions, are set forth on
Schedules II-A and II-B. There are not on the date hereof or as of the Closing
Date, before giving effect
<PAGE>

to the Transactions, any existing options, warrants, calls, subscriptions, or
other rights, or other agreements or commitments, obligating TeleCorp to issue,
transfer or sell any shares of capital stock of TeleCorp.

          (ii)  As of the Closing Date, after giving effect to the filing of the
TeleCorp Charter Amendment, the authorized capital stock of TeleCorp will
consist of 1,000 shares of Common Stock, par value $.01 per share, of which 100
shares will be issued and outstanding, fully paid and non-assessable, and will
be owned beneficially and of record by the Company.  On the Closing Date, after
giving effect to the Transactions, there will not be any existing options,
warrants, calls, subscriptions, or other rights, or other agreements or
commitments, obligating TeleCorp to issue, transfer or sell any shares of
capital stock of TeleCorp.

          (iii) TeleCorp has no Subsidiaries.

          (iv)  Each TeleCorp Investor and Management Stockholder owns
beneficially and of record the shares of each class of capital stock of TeleCorp
set forth opposite his or its name on Schedule II-A or II-B, as the case may be,
free and clear of any Liens.  On or prior to the Closing Date, each TeleCorp
Investor and Management Stockholder shall have terminated, and shall have caused
TeleCorp to terminate, all agreements between such TeleCorp Investor or
Management Stockholder, as the case may be, and TeleCorp.

          (c)   TeleCorp was organized on July 29, 1996, and, except for its
acquisition and ownership of the TeleCorp Licenses and activities undertaken in
connection therewith, since its organization has at no time (i) had assets
(excluding the TeleCorp Licenses) or liabilities in excess of $1,000,000 in the
aggregate or (ii) carried on any activities or incurred any liabilities or
obligations other than in connection with its organization and with the
consummation of the Transactions.

          (d)   Schedule 5.16(d) sets forth a list of unaudited financial
statements of TeleCorp for the periods indicated on such list (the "TeleCorp
                                                                    --------
Financial Statements"), including an unaudited December 31, 1997 balance sheet.
- --------------------
True and complete copies of each item listed thereon have previously been
delivered to each of the Company, AT&T PCS and the Cash Equity Investors. The
TeleCorp Financial Statements have been prepared from the books and records of
TeleCorp and fairly present the financial position of TeleCorp as of the dates
of such statements and the results of its operations and changes in financial
position for the year or interim period then ended, in each case in conformity
with generally accepted accounting principals applied on a basis consistent with
past practices, subject in the case of interim statements to normal year end
audit adjustments and the absence of footnotes, which adjustments and footnotes
are immaterial in the aggregate.

          (e)   As of the date hereof and as of the Closing Date, before giving
effect to the Transactions, TeleCorp has no indebtedness or liability of any
nature whatsoever, absolute or contingent, liquidated or unliquidated, except
for liabilities set forth on TeleCorp's December 31, 1997 balance sheet, the
Bridge Notes, and other liabilities incurred in connection with Pre-Closing
Expenditures.

          (f)   There is no action, proceeding or investigation pending or, to
the knowledge of the TeleCorp Investors or the Management Stockholders,
threatened against TeleCorp or any of its properties or assets that would be
reasonably expected to have an
<PAGE>

adverse effect on its ability to consummate the Transactions to which it is a
party or to fulfill its obligations under this Agreement or any of the Related
Agreements to which it is a party, or to operate its business after the Closing
Date, or which seeks to prevent or challenge the Transactions. There is no
judgment, decree, injunction, rule or order outstanding against TeleCorp which
would limit in any material respect the ability of TeleCorp to operate its
business in the manner currently contemplated.

          (g)  TeleCorp is the authorized legal holder, free and clear of any
Liens (except for Liens securing the Bridge Notes and $7,727,322 in net
principal amount of TeleCorp's indebtedness to the United States Department of
the Treasury), of the TeleCorp Licenses, true and correct copies of which are
attached to Schedule III-B. The TeleCorp Licenses are, and on the Closing Date
each of the TeleCorp Licenses will be, valid and in full force and effect.
Except as set forth on Schedule 5.16(g) and for proceedings affecting the PCS or
wireless communications services industry generally, including investigations by
governmental agencies of bidding practices of bidders in the FCC auctions of PCS
spectrum, there is not pending, nor to the knowledge of any of the TeleCorp
Investors or the Management Stockholders, threatened against TeleCorp or against
the TeleCorp Licenses, any application, action, petition, objection or other
pleading, or any proceeding with the FCC which questions or contests the
validity of, or seeks the revocation, non-renewal or suspension of, any of the
TeleCorp Licenses, which seeks the imposition of any modification or amendment
with respect thereto, or which adversely affects the ability of TeleCorp or the
Company to employ the TeleCorp Licenses in its business after the Closing Date.
The TeleCorp Licenses are not subject to any conditions other than those
appearing on the face of the Licenses themselves or the financing documents
appended thereto and those imposed by FCC Law.

                                  ARTICLE VI

                                   COVENANTS

     6.1  Consummation of Transactions.  Each party shall use all commercially
reasonable efforts to take, or cause to be taken, all actions, and to do, or
cause to be done, all things necessary, proper or advisable and consistent with
applicable law to carry out all of their respective obligations under this
Agreement and the Related Agreements and to consummate the Transactions, which
efforts shall include, without limitation, the following:

          (a)  The parties shall use all commercially reasonable efforts to
cause the Closing to occur and the Transactions to be consummated in accordance
with the terms hereof, and, without limiting the generality of the foregoing, to
obtain all necessary Consents including, without limitation, the approval of
this Agreement and the Transactions by all Governmental Authorities and
agencies, including the FCC and any Consents necessary or advisable in the
reasonable judgment of AT&T PCS in connection with franchise laws applicable to
the execution, delivery and performance of this Agreement and the Related
Agreements or the consummation of the Transactions, and to make all filings with
and to give all notices to third parties which may be necessary or reasonably
required in order for the parties to consummate the Transactions.
<PAGE>

               (b)  Each party shall furnish to the other parties all
information concerning such party and its Affiliates reasonably required for
inclusion in any application or filing to be made by AT&T PCS or the Company or
any other party in connection with the Transactions or otherwise to determine
compliance with applicable FCC Rules.

               (c)  Upon the request of any other party, each party shall
forthwith execute and deliver, or cause to be executed and delivered, such
farther instruments of assignment, transfer, conveyance, endorsement, direction
or authorization and other documents as may reasonably be requested by such
party in order to effectuate the purposes of this Agreement and the Related
Agreements.

               (d)  Each party shall use all commercially reasonable efforts to
modify the structure of the Transactions in such a manner that no franchise laws
shall be applicable to the relationship between AT&T PCS (or its Affiliates) and
the Company; provided that, no party shall be obligated to agree to any
modification that adversely affects such party. The Company acknowledges that
(i) the Company and AT&T PCS and its Affiliates do not intend to create a
franchise or business opportunity relationship; (ii) the wireless telephones
("Telephones") if any, purchased by the Company from AT&T PCS and its Affiliates
and minutes for mobile wireless radiotelephonic service ("Minutes") purchased by
the Company under the terms of the Roaming are being sold at bona fide wholesale
prices; (iii) the Company is not required by this Agreement or the Related
Agreements or as a matter of practical necessity to purchase more than a
reasonable quantity of Telephones or Minutes; and (iv) neither AT&T PCS nor any
of its Affiliates has made any representation to the Company that (a) the
Company or its equity holders will earn, or are likely to earn, a gross or net
profit, (b) AT&T PCS or any of its Affiliates has knowledge of the market that
the Company will operate in or that the market demand will enable the Company to
earn a profit, (c) there is a guaranteed market for the Company, or (d) AT&T PCS
or any of its Affiliates will provide the Company with locations or assist the
Company in finding locations for use or operation of its business. The Company
has been informed at least seven days prior to the execution of this Agreement
that AT&T PCS's principal business address is, and AT&T's agent for service of
process is, c/o AT&T Corp., 32 Avenue of the Americas, New York, New York 10013.

Nothing in this Agreement shall be construed to require the parties to
consummate the Closing if any regulatory approval would require that it (i)
divest or hold separate any of its assets existing as of the date hereof other
than as contemplated by this Agreement and the Related Agreements or (ii)
otherwise take or commit to take any action that limits its freedom of action in
any material respect with respect to any of its businesses, product lines or
assets.

     6.2 Confidentiality.

               (a)  Each party shall, and shall cause each of its Affiliates,
and its and their respective shareholders, members, managers, directors,
officers, employees and agents (collectively, "Representatives") to, keep secret
                                               ---------------
and retain in strictest confidence any and all Confidential Information relating
to any other party that it receives in connection with the negotiation or
performance of this Agreement, and shall not disclose such Confidential
Information, and shall cause its Representatives not to disclose such
Confidential Information, to anyone except the receiving party's Affiliates and
Representatives and any other Person that agrees in writing to keep in
confidence all Confidential Information in accordance with the terms of this
Section 6.2. Until the Closing, each party agrees to use Confidential
Information received from another party only (i) to evaluate its interest in
pursuing the Transactions
<PAGE>

and (ii) to pursue such Transactions, but not for any other purpose. All
Confidential Information furnished pursuant to this Agreement shall be returned
promptly to the party to whom it belongs upon request by such party. Upon the
Closing, the provisions of this Section 6.2 shall terminate and the obligations
of the parties in respect of Confidential Information shall be governed by
Section 7.7 of the Stockholders Agreement.

          (b)  The obligations set forth in Section 6.2(a) shall be inoperative
with respect to Confidential Information that (i) is or becomes generally
available to the public other than as a result of disclosure by the receiving
party or its Representatives, (ii) was available to the receiving party on a
non-confidential basis prior to its disclosure to the receiving party, or (iii)
becomes available to the receiving party on a non-confidential basis from a
source other than the providing party or its agents, provided that such source
is not known by the receiving party to be bound by a confidentiality agreement
with the providing party or the providing party's agents.

          (c)  To the fullest extent permitted by law, if a party or any of its
Affiliates or Representatives breaches, or threatens to commit a breach of, this
Section 6.2, the party whose Confidential Information shall be disclosed, or
threatened to be disclosed, shall have the right and remedy to have this Section
6.2 specifically enforced by any court having jurisdiction, it being
acknowledged and agreed that money damages will not provide an adequate remedy
to such party.  Nothing in this Section 6.2 shall be construed to limit the
right of any party to collect money damages in the event of breach of this
Section 6.2.

          (d)  Anything else in this Agreement or the Related Agreements
notwithstanding, each party shall have the right to disclose any information,
including Confidential Information of the other party or such other party's
Affiliates, in any filing with any regulatory agency, court or other authority
or any disclosure to a trustee of public debt of a party to the extent that the
disclosing party determines in good faith that it is required by Law, regulation
or the terms of such debt to do so, provided that any such disclosure shall be
as limited in scope as possible and shall be made only after giving the other
party as much notice as practicable of such required disclosure and an
opportunity to contest such disclosure if possible.

     6.3 Retained Licenses. AT&T PCS and its Affiliates may use the AT&T
Retained Licenses, and may market and sell to their customers or others any
services that use such Licenses permitted under applicable Laws, in each case as
it may determine, and may otherwise deal with and permit others to deal with the
AT&T Retained Licenses, except from and after the Closing Date to the extent
otherwise expressly agreed by any AT&T Party in any of the Related Agreements.

     6.4 No Further Commitment. The Cash Equity Investors and the Management
Stockholders have arranged for the Company to obtain financing under this
Agreement and will use all reasonable efforts to arrange for financing under the
Credit Agreement. It is anticipated that the Company, in consultation and
cooperation with the Cash Equity Investors, will have responsibility for
arranging for all of the additional debt and equity financing required by the
Company. Further, the Management Stockholders, in their capacity as officers and
employees of the Company, shall be responsible for conducting the day-to-day
operations of the Company, all under the control and supervision of the
Company's Board of Directors. In connection with the execution and delivery of
this Agreement, each of the Purchasers is agreeing to acquire Securities of the
Company and each of the Purchasers and certain of their respective Affiliates
are agreeing to enter into the Related Agreements to which each of them is a
party. The parties acknowledge and agree that, except to the extent expressly
set forth in this
<PAGE>

Agreement and such Related Agreements, neither AT&T PCS nor any of its
Affiliates has any legal, contractual or other obligation to acquire debt or
equity securities of the Company, provide or arrange for debt or equity
financing required by the Company, provide services to or otherwise assist the
Company in connection with the conduct of its business or in any other manner,
refrain from exercising its rights under this Agreement and the Related
Agreements (including, without limitation, the right to terminate the Network
Membership License Agreement in accordance with its terms) or refrain from
competing, directly or indirectly, with businesses conducted by the Company.
Nothing herein shall be construed to relieve any Person of its express
contractual obligations under this Agreement and the Related Agreements or from
any common law obligation of good faith relating to its performance of such
contractual obligations.

     6.5 Use of Proceeds. The Company shall use the proceeds of the sale of
Securities only for the purposes described in Section 2.8 and in the written
statement referred to in Section 5.13.

     6.6 SBIC Regulatory Provisions.

           (a) The Company shall notify each SBIC Holder as soon as practicable
(and, in any event, not later than 15 days) prior to taking any action after
which the number of record holders of the Company's voting stock would be
increased from fewer than 50 to 50 or more, and the Company shall notify each
SBIC Holder of any other action or occurrence after which the number of record
holders of the Company's voting stock was increased (or would increase) from
fewer than 50 to 50 or more, as soon as practicable after the Company becomes
aware that such other action or occurrence has occurred or is proposed to occur.

           (b) Within 75 days after the Closing, the Company shall deliver to
each SBIC Holder a written statement certified by the Company's president or
chief financial officer describing in reasonable detail the use of the proceeds
of the sale of Securities hereunder by the Company and its Subsidiaries. In
addition to any other rights granted hereunder, the Company shall grant each
SBIC Holder and the United States Small Business Administration (the "SBA")
                                                                      ---
access to the Company's records for the purpose of verifying the use of such
proceeds to the extent required pursuant to SBIC Regulations.

           (c) Promptly after the end of each fiscal year (but in any event
prior to February 28 of each year), the Company shall deliver to each SBIC
Holder a written assessment of the economic impact of each SBIC Holder's
investment in the Company, specifying the full-time equivalent jobs created or
retained in connection with the investment, the impact of the investment on the
revenues and profits of the business and on taxes paid by the business and its
employees.

           (d) During the one-year period commencing on the Closing Date, the
Company shall not engage in any activity which constitutes an ineligible
business activity (within the meaning of the SBIC Regulations as in effect on
the date hereof).

     6.7 Regulatory Compliance Cooperation. In the event that any SBIC Holder
reasonably determines that it has a Regulatory Problem, to the extent reasonably
necessary, such SBIC Holder shall have the right to transfer its Securities (and
any shares of Common Stock issued upon conversion thereof) to another Person
without regard to any restrictions on transfer set forth in this Agreement or in
Section 4.1 (c) of the Stockholders Agreement and without complying with the
provisions of Section 4.3 of the Stockholders Agreement, but subject to the
other provisions of the Stockholders Agreement and federal and state securities
law restrictions, and the Company shall take all such actions
<PAGE>

as are reasonably requested by such SBIC Holder in order to (i) effectuate and
facilitate such transfer by such SBIC Holder of any Securities of the Company
then held by such SBIC Holder to such Person, (ii) permit such SBIC Holder (or
any of its Affiliates) to exchange all or any portion of voting Securities then
held by it on a share-for-share basis for shares of a class of non-voting
Securities of the Company, which non-voting Securities shall be identical in all
respects to such voting Securities, except that such non-voting Securities (or
Common Stock, as applicable) shall be non-voting and shall be convertible into
voting Securities (or Common Stock, as applicable) on such terms as are
requested by such SBIC Holder in light of regulatory considerations then
prevailing, (iii) continue and preserve the respective allocation of the voting
interests with respect to the Company arising out of the SBIC Holder's ownership
of voting Securities and/or provided for in the Stockholders Agreement before
the transfers and amendments referred to in this Section (including entering
into such additional agreements as are reasonably requested by such SBIC Holder
to permit any Person(s) designated by such SBIC Holder) to exercise any voting
power which is relinquished by such SBIC Holder and (iv) amend this Agreement,
the Restated Certificate, and any other related documents, agreements or
instruments to effectuate and reflect the foregoing. The parties to this
Agreement agree to vote their Securities in favor of such amendments and
actions.

     6.8 Permitted Pre-Closing Expenditures.

           (a) AT&T PCS hereby irrevocably and unconditionally commits (the
"Pre-Closing Commitment") to repay Pre-Closing Advances in the aggregate amount
 ----------------------
of up to $2.25 million in accordance with the terms of Section 6.8(f).

           (b) The Cash Equity Investors hereby irrevocably and unconditionally
commit, from time to time upon ten business days' notice from the Company, to
make unsecured, noninterest bearing advances ("Pre-Closing Advances") to the
                                               --------------------
Company evidenced by notes, such notes to be in form satisfactory to Cash Equity
Investors representing a majority of the Aggregate Commitments of all Cash
Equity Investors (the "Pre-Closing Notes"), pro rata based on their respective
                      -------------------
Aggregate Commitments, in an amount up to the aggregate amount of $2.0 million.

           (c) Prior to the Closing, the Company shall request Pre-Closing
Advances and shall use the proceeds thereof only to make Pre-Closing
Expenditures for assets, properties or rights that are, prior to the Closing,
assignable to AT&T PCS or its designee(s), free and clear of Liens (other than
Permitted Liens) and without penalty or cost to effect such assignment other
than penalties or costs that individually or in the aggregate are not material
in amount. The Company shall not incur obligations (including any deferred or
contingent obligations) in excess of the amounts set forth on Schedule 1.1,
without regard to lease commitments.

           (d) The Company shall furnish each of the Purchasers with written
monthly reports detailing any Pre-Closing Advances, Pre-Closing Expenditures and
related activities.

           (e) Except to the extent Pre-Closing Notes are converted to capital
at the election of the Cash Equity Investors in accordance with the second
sentence of Section 3.2(b)(i), the Company shall repay the Pre-Closing Advances
(if any) on the Closing Date, concurrently with the Closing.
<PAGE>

           (f) If this Agreement is terminated in accordance with the terms
hereof prior to the Closing, AT&T PCS shall repay any Pre-Closing Advances then
outstanding and shall also repay up to $250,000 of interest on the Bridge Notes
(the aggregate amount of such repayments not to exceed the amount of the Pre-
Closing Commitment) within five business days after the date of termination,
such payment to be made against the transfer and assignment, if and to the
extent requested by AT&T PCS, by the Company to AT&T PCS or its designee(s),
free and clear of all Liens (other than Permitted Liens), of any asset, property
or right acquired by the Company with the proceeds of such Pre-Closing Advances.

     6.9 Certain Covenants. From and after the execution and delivery of this
Agreement to and including the Closing Date, each of AT&T PCS, TWR, the TeleCorp
Investors and the Management Stockholders shall, and the TeleCorp Investors and
the Management Stockholders shall cause TeleCorp to:

           (a) Comply in all material respects with all applicable Laws,
including all such Laws relating to the AT&T PCS Licenses, the TWR Licenses and
the TeleCorp Licenses, as the case may be, or their use;

           (b) Use commercially reasonable efforts to maintain the AT&T PCS
Licenses, the TWR Licenses and the TeleCorp Licenses, as the case may be, in
full force and effect;

           (c) Not (i) sell, transfer, assign or dispose of, or offer to, or
enter into any agreement, arrangement or understanding to, sell, transfer,
assign or dispose of any of the AT&T PCS Licenses, the TWR Licenses or the
TeleCorp Licenses, as the case may be, or any interest therein, or negotiate
therefor, or (ii) create, incur or suffer to exist any Lien (except for Liens
securing the Bridge Notes and $7,727,322 in net principal amount of TeleCorp's
indebtedness to the United States Department of the Treasury) of any nature
whatsoever relating to any of the AT&T PCS Licenses, the TWR Licenses or the
TeleCorp Licenses, as the case may be, or any interest therein. Without limiting
the foregoing, none of AT&T PCS, TWR, the TeleCorp Investors or the Management
Stockholders shall, and the TeleCorp Investors and the Management Stockholders
shall cause TeleCorp not to, incur any material obligation or liability,
absolute or contingent, relating to or affecting the AT&T PCS Licenses, the TWR
Licenses and the TeleCorp Licenses, as the case may be, or their use;

           (d) Give written notice to the other parties promptly upon the
commencement of, or upon obtaining knowledge of any facts that would give rise
to a threat of, any claim, action or proceeding commenced against or relating to
(i) it, its properties or assets, including the AT&T PCS Licenses, the TWR
Licenses or the TeleCorp Licenses, as the case may be, or their use, and which
could have a Material Adverse Effect on it or materially adversely affect the
Transactions, or (ii) the AT&T PCS Licenses, the TWR Licenses or the TeleCorp
Licenses, as the case may be, or their use;

           (e) Promptly after obtaining knowledge of the occurrence of, or the
impending or threatened occurrence of, any event which could cause or constitute
a material breach of any of its warranties, representations, covenants or
agreements contained in this Agreement, give notice in writing of such event, or
occurrence or impending or threatened event or occurrence, to the other parties
and use commercially reasonable efforts to prevent or to promptly remedy such
breach; and
<PAGE>

               (f)  Cause the other parties to be advised promptly in writing of
(i) any event, condition or state of facts known to it, which has had or could
have a Material Adverse Effect on it, or materially adversely affect the AT&T
PCS Licenses, the TWR Licenses or the TeleCorp Licenses, as the case may be,
their use, or the Transactions (other than proceedings affecting the PCS or
wireless communications services industry generally), or (ii) any claim, action
or proceeding which seeks to enjoin the consummation of the Transactions.

     6.10  Employment Agreements.  On the Closing Date, each of the Management
Stockholders shall enter into an employment agreement with the Company
(collectively, the "Employment Agreements"), in form and substance satisfactory
                    ---------------------
to Cash Equity Investors representing 66-2/3% of the Aggregate Commitment of all
Cash Equity Investors, AT&T PCS and the Management Stockholders, which will
provide, among other things, for the vesting and repurchase of Series E
Preferred Stock and Voting Common Stock on such terms and conditions and upon
the occurrence of such events or circumstances as are set forth in the
Management Agreement; it being understood that any cash compensation payable
under the Employment Agreements shall reduce the management fee payable by the
Company pursuant to the Management Agreement.

     6.11  Restricted Stock Plan. Prior to the Closing, the Company shall
establish a restricted stock plan, in form and substance satisfactory to Cash
Equity Investors representing 66-2/3% of the Aggregate Commitment of all Cash
Equity Investors, AT&T PCS and the Management Stockholders, which will provide,
among other things, that (a) shares of Voting Common Stock issued thereunder
will be subject to the vesting provisions and repurchase rights set forth on
Schedule 6.11, (b) all of the shares issued under the plan shall be allocated to
Company employees on the Closing Date (other than those shares reserved under
the plan for issuance to a Chief Operating Officer), (c) any shares (other than
shares issued in respect of the Supplemental Closing) that are repurchased by
the Company under the terms of the plan shall be available for re-allocation to
Company employees pursuant to the Plan, and (d) any shares (other than shares
issued in respect of the Supplemental Closing) that are not re-allocated to
Company employees on the fifth anniversary of the Closing Date shall be re-
allocated to the Management Stockholders ratably in accordance with the number
of shares of Voting Common Stock being issued to each of them hereunder.
<PAGE>

                                  ARTICLE VII

                              CLOSING CONDITIONS

     7.1  Conditions to Obligations of All Parties. The obligation of each of
the parties to consummate the Transactions contemplated to occur at the Closing
shall be conditioned on the following, unless waived by each of the parties:

               (a)  Any applicable waiting period under the HSR Act shall have
expired or been terminated.

               (b)  The Consent of the FCC to each of the AT&T License Transfer
and the contribution of the TeleCorp Equity Interests shall have been obtained
pursuant to a Final Order free of any conditions materially adverse to the
Company or any of the Purchasers. For the purposes of this paragraph, "Final
Order" means an action or decision that has been granted by the FCC as to which
(i) no request for a stay or similar request is pending, no stay is in effect,
the action or decision has not been vacated, reversed, set aside, annulled or
suspended and any deadline for filing such request that may be designated by
statute or regulation has passed, (ii) no petition for rehearing or
reconsideration or application for review is pending and the time for the filing
of any such petition or application has passed, (iii) the FCC does not have the
action or decision under reconsideration on its own motion and the time within
which it may effect such reconsideration has passed and (iv) no appeal is
pending including other administrative or judicial review, or in effect and any
deadline for filing any such appeal that may be designated by statute or rule
has passed.

               (c)  All Consents by any Governmental Authority (other than the
Consents referred to in paragraphs (a) and (b) above) required to permit the
consummation of the Transactions, the failure to obtain or make which would be
reasonably expected to have a Material Adverse Effect on the Company or any of
the Purchasers or to materially adversely affect the Transactions or its ability
to perform its obligations under the Related Agreements shall have been obtained
or made.

               (d)  No preliminary or permanent injunction or other order,
decree or ruling issued by a Governmental Authority, nor any statute, rule,
regulation or executive order promulgated or enacted by any Governmental
Authority, shall be in effect that would (i) impose material limitations on the
ability of any party to consummate the Transactions or prohibit such
consummation, or (ii) impair in any material respect the operation of the
Company.

               (e)  The closing under the License Purchase Agreement shall occur
concurrently with the Closing.

     7.2  Conditions to Obligations of Each Party.  The obligation of each party
(the "receiving party") to consummate the Transactions contemplated to occur at
      ---------------
the Closing shall be further conditioned upon the satisfaction or fulfillment,
at or prior to the Closing, of the following conditions by each of the other
parties, unless waived by the receiving party:
<PAGE>

               (a)  The representations and warranties of each party other than
the receiving party contained herein and in the Related Agreements shall be true
and correct in all material respects (except for representations and warranties
that are qualified as to materiality, which shall be true and correct), in each
case when made and at and as of the Closing (except for representations and
warranties made as of a specified date, which shall be true and correct as of
such date) with the same force and effect as though made at and as of such time,
except for inaccuracies in respect of the representations and warranties set
forth in Section 4.3, the first sentence of each of Sections 5.3 and 5.16(f) and
the third sentence of each of Sections 4.6(a) and (b) and 5.16(g) (disregarding
any qualifications as to materiality contained therein) that in the aggregate
would not be reasonably expected to have a Material Adverse Effect on the
Company or its ability to perform its obligations under the Related Agreements
or to materially adversely affect the Transactions.

               (b)  Each party other than the receiving party shall have
performed in all material respects all agreements contained herein or in the
Related Agreements required to be performed by it at or before the Closing.

               (c)  An officer of each party other than the receiving party
shall have delivered to the receiving party a certificate, dated the Closing
Date, certifying as to the fulfillment of the conditions set forth in paragraphs
(a) and (b) above as to the party delivering such certificate.

               (d)  Each party other than the receiving party shall have
furnished the receiving party with one or more opinions of counsel to the party
furnishing the opinion(s), each dated the Closing Date, in substantially the
forms of Exhibits H- I through K-2, as applicable.

               (e)  Each of the Related Agreements shall have been executed and
delivered by the parties thereto (other than the receiving party) and shall be
in full force and effect.

               (f)  Each Cash Equity Investor (other than the receiving party)
shall have executed and delivered to the Company a Pledge Agreement,
substantially in the form of Exhibit L.

               (g)  All corporate and other proceedings of each party other than
the receiving party in connection with the AT&T License Transfer, the
contribution of the TeleCorp Equity Interests and the other Transactions, and
all documents and instruments incident thereto, shall be reasonably satisfactory
in form and substance to the receiving party, and each party other than the
receiving party shall have delivered to the receiving party such receipts,
documents, instruments and certificates, in form and substance reasonably
satisfactory to the receiving party, which the receiving party shall have
reasonably requested.

     7.3  Conditions to the Obligations of the Purchasers. The obligation of
each Purchaser to consummate the Transactions contemplated to occur at the
Closing shall be further conditioned upon the satisfaction or fulfillment at or
prior to the Closing, of the following conditions, unless waived by each such
Purchaser:
<PAGE>

               (a)  The terms, conditions and provisions of the Credit Documents
shall be satisfactory to such Purchaser in all material respects, including
without limitation provisions relating to principal amounts, rates of interest,
terms of mandatory and permitted prepayments, prepayment charges (if any), fees
and expenses, representations and warranties, affirmative and negative
covenants, conditions to disbursements of loan funds, defaults and remedies
therefor and collateral, it being acknowledged that such terms, conditions and
provisions shall be deemed to be satisfactory to such Purchaser if they are in
the aggregate at least as favorable to the Company as the terms of the
commitment letter referred to in Section 5.11 (a). The disbursements of loan
funds contemplated by the Credit Agreement to occur on the Closing Date shall be
made in accordance with the terms thereof concurrently with the Closing and such
Purchaser shall have received such evidence thereof as it may request.

               (b)  On the Closing Date, counsel to each Purchaser shall have
received the legal fees and expenses required to be paid or reimbursed by the
Company as provided in Section 10.4 for statements rendered on or prior to the
Closing Date.

               (c)  For each SBIC Holder, the Company shall have prepared the
Size Status Declaration on Form 480, the Assurance of Compliance for
Nondiscrimination on Form 652 and the Portfolio Financing Report on Form 1031
(Parts A and B) (collectively, the "SBA Compliance Documents"), the Company
                                    ------------------------
shall have duly executed and delivered the Forms 480 and 652 to each SBIC
Holder, and all of the information set forth in the SBA Compliance Documents
shall be true and correct in all respects. The Company shall have delivered a
list, after giving effect to the transactions contemplated by this Agreement,
of: (a) the name of each of the Company's directors, (b) the name and title of
each of the Company's officers and (c) the name of each of the Company's
stockholders and the number and class of shares held by each stockholder.

                                 ARTICLE VIII

                         SURVIVAL AND INDEMNIFICATION

     8.1  Survival.  The representations and warranties made in this Agreement
shall survive the Closing until the second anniversary thereof and shall
thereupon expire together with any right to indemnification in respect thereof
(except to the extent a written notice asserting a claim for breach of any such
representation or warranty and describing such claim in reasonable detail shall
have been given prior to such date to the party which made such representation
or warranty).  The covenants and agreements contained herein to be performed or
complied with prior to the Closing shall expire at the Closing.  The covenants
and agreements contained in this Agreement to be performed or complied with
after the Closing shall survive the Closing; provided that the right to
indemnification pursuant to this Article VIII in respect of a breach of a
representation or warranty shall expire on the second anniversary of the Closing
(except to the extent written notice asserting a claim thereunder and describing
such claim in reasonable detail shall have been given prior to such date to the
party from whom such indemnification is sought).  After the Closing, the sole
and exclusive remedy of the parties for any breach or inaccuracy of any
representation or warranty contained in this Agreement, or any other claim
(whether or not alleging a breach of this Agreement) that arises out of the
facts and circumstances constituting such breach or inaccuracy, shall be the
indemnity provided in this Article VIII.
<PAGE>

     8.2  Indemnification by the Purchasers.  Each Purchaser shall indemnify and
hold harmless each other Purchaser, the Company, each Management Stockholder and
their respective Affiliates, and the shareholders, members, managers, officers,
employees, agents and/or the legal representatives of any of them (each, a
"Section 8.2 Indemnified Party"), against all liabilities and expenses
(including amounts paid in satisfaction of judgments, in compromise, as fines
and penalties, and as counsel fees) (collectively, "Losses") incurred by him or
it in connection with the investigation, defense, or disposition of any action,
suit or other proceeding in which any Section 8.2 Indemnified Party may be
involved or with which he or it may be threatened that arises out of or results
from (a) any representation or warranty of such indemnifying party contained in
this Agreement (except, in the case of the TeleCorp Investors, for the
representations contained in Section 5.16) or any Related Agreement being untrue
in any material respect as of the date on which it was made or (b) any material
default by such indemnifying party or any of its Affiliates in the performance
of their respective obligations under this Agreement and any Related Agreement,
except to the extent (but only to the extent) any such Losses arise out of or
result from the gross negligence or willful misconduct of such Section 8.2
Indemnified Party or its Affiliates.

     8.3  Indemnification by the Management Stockholders.  Each Management
Stockholder, severally and not jointly, shall indemnify and hold harmless each
Purchaser and the Company and their respective Affiliates, and the shareholders,
members, managers, officers, employees, agents and/or the legal representatives
of any of them (each, a "Section 8.3 Indemnified Party"), against all Losses
                         -----------------------------
incurred by him or it in connection with the investigation, defense, or
disposition of any action, suit or other proceeding in which any Section 8.3
Indemnified Party may be involved or with which he or it may be threatened that
arises out of or results from (a) any representation or warranty of such
Management Stockholder contained in this Agreement (except for the
representations contained in Section 5.16) or any Related Agreement being untrue
in any material respect as of the date on which it was made or (b) any material
default by such Management Stockholder in the performance of his obligations
under this Agreement and any Related Agreement, except to the extent (but only
to the extent) any such Losses arise out of or result from the gross negligence
or willful misconduct of such Section 8.3 Indemnified Party or its Affiliates;
provided that the aggregate liability of each Management Stockholder to
indemnify Section 8.3 Indemnified Parties against Losses arising out of or
resulting from (x) the untruth in any material respect of any representation or
warranty as to the Company made by such Management Stockholder in this Agreement
or any Related Agreement, (y) any material default by such Management
Stockholder in the performance of his obligations under this Agreement or any
Related Agreement, shall (except, in the case of clause (y), to the extent (but
only to the extent) any such Losses arise out of or result from the gross
negligence or willful misconduct of such Management Stockholder) be limited to
the shares of Common Stock and Preferred Stock of the Company then held by such
Management Stockholder, and Section 8.3 Indemnified Parties seeking
indemnification against any Management Stockholder for such Losses hereunder
shall not have recourse to any other assets of such Management Stockholder.

     8.4  Indemnification by the Company. The Company shall indemnify and hold
harmless each of the Purchasers and their respective Affiliates, and the
shareholders, members, managers, officers, employees, agents and/or the legal
representatives of any of them (each, a "Section 8.4 Indemnified Party") against
                                         -----------------------------
all Losses incurred by him or it in connection with the investigation, defense,
or disposition of any action, suit or other proceeding in which any Section 8.4
Indemnified Party may be involved or with which he or it may be threatened that
arises out of or results from (a) any representation or warranty of the Company
contained in this Agreement or any Related Agreement being untrue in any
material respect as of the date on which it was made or (b) any material default
by the Company or any of its Affiliates in the
<PAGE>

performance of their respective obligations under this Agreement and any Related
Agreement, except to the extent (but only to the extent) any such Losses arise
out of or result from the gross negligence or willful misconduct of such Section
8.4 Indemnified Party or its Affiliates.

     8.5  Indemnification by the TeleCorp Investors and the Management
Stockholders. The TeleCorp Investors and the Management Stockholders, jointly
and severally, shall indemnify and hold harmless AT&T PCS, TWR, the Cash Equity
Investors, and the Company and their respective Affiliates, and the
shareholders, members, managers, officers, employees, agents and/or the legal
representatives of any of them (each, a "Section 8.5 Indemnified Party"),
                                         -----------------------------
against all Losses incurred by him or it in connection with the investigation,
defense, or disposition of any action, suit or other proceeding in which any
Section 8.5 Indemnified Party may be involved or with which he or it may be
threatened that arises out of or results from (a) any representation or warranty
of such indemnifying party contained in Section 5.16 being untrue in any
material respect as of the date on which it was made or (b) any liabilities of
TeleCorp attributable to events that occurred prior to the Closing, other than
liabilities set forth on the TeleCorp Financial Statements or arising out of
ownership of the Purchased Licenses, and except to the extent (but only to the
extent) any such Losses arise out of or result from the gross negligence or
willful misconduct of such Section 8.5 Indemnified Party or its Affiliates;
provided that the aggregate liability of each TeleCorp Investor and Management
Stockholder to indemnify Section 8.5 Indemnified Parties against Losses arising
out of or resulting from the untruth in any material respect of any
representation or warranty made by such TeleCorp Investor or Management
Stockholder in Section 5.16 shall be limited (i) to the shares of Common Stock
and Preferred Stock of the Company acquired by such TeleCorp Investor or
Management Stockholder in respect of its contribution of TeleCorp Equity
Interests (or the proceeds therefrom), and Section 8.5 Indemnified Parties
seeking indemnification against any TeleCorp Investor or Management Stockholder
for such Losses hereunder shall not have recourse to any other assets of such
TeleCorp Investor or Management Stockholder, and (ii) in the case of the
Management Stockholders only, to $375,000 in the aggregate; provided, further,
that the TeleCorp Investors and Management Stockholders shall not have any
obligation to indemnify Section 8.5 Indemnified Parties pursuant to this Section
8.5 in respect of any Claim arising under Section 5.16 unless and until Section
8.5 Indemnified Parties, individually or in the aggregate, shall have incurred
Losses in an aggregate amount in excess of $250,000, in which event each Section
8.5 Indemnified Party shall be entitled to be indemnified for all of its Losses
commencing at $1.

     8.6  Procedures.

               (a)  The terms of this Section 8.6 shall apply to any claim (a
"Claim") for indemnification under the terms of Sections 8.2, 8.3, 8.4 or 8.5
 -----
The Section 8.2 Indemnified Party, Section 8.3 Indemnified Party, Section 8.4
Indemnified Party or Section 8.5 Indemnified Party Indemnified Party (each, an
"Indemnified Party"), as the case may be, shall give prompt written notice of
 -----------------
such Claim to the indemnifying party (the "Indemnifying Party") under the
                                           ------------------
applicable Section, which party may assume the defense thereof, provided that
any delay or failure to so notify the Indemnifying Party shall relieve the
Indemnifying Party of its obligations hereunder only to the extent, if at all,
that it is materially prejudiced by reason of such delay or failure. The
Indemnified Party shall have the right to approve any counsel selected by the
Indemnifying Party and to approve the terms of any proposed settlement, such
approval not to be unreasonably delayed or withheld (unless such settlement
provides only, as to the Indemnified Party, the payment of money damages
actually paid by the Indemnifying Party and a complete release of the
Indemnified Party in respect of the claim in question). Notwithstanding any of
the foregoing to the contrary, the provisions of this Article VIII shall not be
construed so as to provide for the indemnification of any Indemnified Party for
any liability to the extent (but only to the extent) that such
<PAGE>

indemnification would be in violation of applicable law or that such liability
may not be waived, modified or limited under applicable law, but shall be
construed so as to effectuate the provisions of this Article VIII to the fullest
extent permitted by law.

               (b)  In the event that the Indemnifying Party undertakes the
defense of any Claim, the Indemnifying Party will keep the Indemnified Party
advised as to all material developments in connection with such Claim,
including, but not limited to, promptly furnishing the Indemnified Party with
copies of all material documents filed or served in connection therewith.

               (c)  In the event that the Indemnifying Party fails to assume the
defense of any Claim within ten business days after receiving written notice
thereof, the Indemnified Party shall have the right, subject to the Indemnifying
Party's right to assume the defense pursuant to the provisions of this Article
VIII, to undertake the defense, compromise or settlement of such Claim for the
account of the Indemnifying Party. Unless and until the Indemnified Party
assumes the defense of any Claim, the Indemnifying Party shall advance to the
Indemnified Party any of its reasonable attorneys' fees and other costs and
expenses incurred in connection with the defense of any such action or
proceeding. Each Indemnified Party shall agree in writing prior to any such
advancement that, in the event he or it receives any such advance, such
Indemnified Party shall reimburse the Indemnifying Party for such fees, costs
and expenses to the extent that it shall be determined that he or it was not
entitled to indemnification under this Article VIII.

               (d)  In no event shall an Indemnifying Party be required to pay
in connection with any Claim for more than one firm of counsel (and local
counsel) for each of the following groups of Indemnified Parties: (i) AT&T PCS
and TWR, their respective Affiliates, and the shareholders, members, managers,
officers, employees, agents and/or the legal representatives of any of them;
(ii) the Cash Equity Investors, their respective Affiliates, and the
shareholders, members, managers, officers, employees, agents and/or the legal
representatives of any of them; (iii) the TeleCorp Investors, their respective
Affiliates, and the shareholders, members, managers, officers, employees, agents
and/or the legal representatives of any of them; and (iv) the Company and the
Management Stockholders, their respective Affiliates, and the shareholders,
members, managers, officers, employees, agents and/or the legal representatives
of any of them.

     8.7  Registration Rights.  Notwithstanding anything to the contrary in this
Article VIII, the indemnification and contribution provisions set forth in
Sections 5(e) and 5(f) of the Stockholders Agreement shall govern any claim made
with respect to the registration statements filed pursuant to Section 5 of the
Stockholders Agreement or sales made thereunder.

     8.8  Limit on Indemnity. So long as the Company does not conduct any
business or engage in any activities other than those described in the first
sentence of the definition of "Business" (as such term is defined in the
Stockholders Agreement), each party waives its right to indemnification under
this Article VIII or any other right to assert any claim arising from any
inaccuracy in the Company's representations and warranties set forth in the
first and last sentence of Section 5.13 or the violation by the Company of the
covenant set forth in Section 6.6(d) to the extent such Section relates to
ineligible or prohibited activities of SBICs.
<PAGE>

                                  ARTICLE IX

                                  TERMINATION

     9.1  Termination.  This Agreement may be terminated, and the transactions
contemplated hereby abandoned, without further obligation of any party (except
as set forth herein), at any time prior to the Closing Date:

               (a)  by mutual written consent of the parties;

               (b)  by any party by written notice to the other parties, if the
Closing shall not have occurred on or before the date that is six months after
the date hereof, provided that the party electing to exercise such right is not
otherwise in breach of its obligations under this Agreement, provided further,
that so long as the average amount of advances during the period commencing
December 19, 1997 (whether in respect of Bridge Notes, Pre-Closing Advances or
otherwise) by Cash Equity Investors to the Company and TeleCorp equals or
exceeds $2.0 million per month, AT&T may not exercise such right prior to the
date that is ten months after the date hereof, or

               (c)  by any party by written notice to the other parties, if the
consummation of the Transactions shall be prohibited by a final, non-appealable
order, decree or injunction of a court of competent jurisdiction.

          Within ten business days after the request of AT&T PCS, the chief
financial officer of the Company shall certify the average amount of the
advances referred to in Section 9.1(b) per month during the period referred to
therein.
<PAGE>

     9.2  Effect of Termination.

               (a)  In the event of a termination of this Agreement, no party
hereto shall have any liability or further obligation to any other party to this
Agreement, except as set forth in paragraph (b) below, and except that nothing
herein will relieve any party from liability for any breach by such party of
this Agreement.

               (b)  In the event of a termination of this Agreement pursuant to
Section 9.1, all provisions of this Agreement shall terminate, except Section
6.2 and paragraphs (a) and (f) of Section 6.8 and Articles VIII and X.

               (c)  Whether or not the Closing occurs, except as otherwise
expressly provided in this Agreement, all costs and expenses incurred in
connection with this Agreement and the Transactions shall be paid by the party
incurring such expenses.

                                   ARTICLE X

                           MISCELLANEOUS PROVISIONS

     10.1 Amendment and Modification. This Agreement may be amended, modified or
supplemented only by written agreement of each of the parties.

     10.2 Waiver of Compliance; Consents.  Any failure of any of the parties to
comply with any obligation, covenant, agreement or condition herein may be
waived by the party or parties entitled to the benefits thereof only by a
written instrument signed by the party granting such waiver, but such waiver or
failure to insist upon strict compliance with such obligation, covenant,
agreement or condition shall not operate as a waiver of, or estoppel with
respect to, any subsequent or other failure.  Whenever this Agreement requires
or permits consent by or on behalf of any party hereto, such consent shall be
given in writing in a manner consistent with the requirement for a waiver of
compliance as set forth in this Section 10.2.

     10.3 Notice.  All notices or other communications hereunder shall be in
writing and shall be given (and shall be deemed to have been duly given upon
receipt) by delivery in person, by facsimile transmission, or by registered or
certified mail (return receipt requested), postage prepaid, with an
acknowledgment of receipt signed by the addressee or an authorized
representative thereof, addressed as follows (or to such other address for a
party as shall be specified by like notice; provided that notice of a change of
address shall be effective only upon receipt thereof):

          If to AT&T PCS:

          c/o AT&T Wireless Services, Inc.

          5000 Carillon Point
<PAGE>

          Kirkland, Washington 98033
          Attention: William W. Hague
          Facsimile: (206) 828-8451

          With a copy to:

          AT&T Corp.
          295 North Maple Avenue
          Basking Ridge, New Jersey 07920
          Attention: Corporate Secretary
          Facsimile: (908) 953-4657

          Friedman Kaplan & Seiler LLP
          875 Third Avenue, 8th Floor
          New York, New York 10022
          Attention: Daniel M. Taitz
          Facsimile: (212) 355-6401

          Rubin Baum Levin Constant & Friedman
          30 Rockefeller Plaza
          New York, New York 10112
          Attention: Gregg S. Lerner
          Facsimile: (212) 698-7825

          If to a Cash Equity Investor, to its address set forth on Schedule I.

          With a copy to:

          Mayer, Brown & Platt
          1675 Broadway
          New York, New York 10019
          Attention: Mark S. Wojciechowski
          Facsimile: (212) 262-1910

          If to a TeleCorp Investor, to its address set forth on Schedule II-A.

          With a copy to:
<PAGE>

          TeleCorp Holding Corp., Inc.
          1110 N. Glebe Road, Suite 3 00
          Arlington, Virginia 22201
          Attn: General Counsel
          Facsimile: (703) 522-4873

          If to a Management Stockholder, to him in care of the Company.

          With a copy to:

          TeleCorp PCS, Inc.
          1110 N. Glebe Road, Suite 300
          Arlington, Virginia 22201
          Attn: General Counsel
          Facsimile: (703) 522-4873

          If to the Company, to it:

          TeleCorp PCS, Inc.
          1110 N. Glebe Road, Suite 300
          Arlington, Virginia 22201
          Attn: General Counsel
          Facsimile: (703) 522-4873

          With a copy to each other party sent to the addresses set forth in
          this Section 10.3.

     10.4 Expenses. The Company agrees, in the event the Transactions are
consummated, to pay, and save the Purchasers harmless against, the reasonable
fees and disbursements of counsel to each of the Purchasers in connection with
the preparation, negotiation, execution and delivery of this Agreement, the
Related Agreements, the Credit Documents, the instruments and documents executed
pursuant hereto or thereto or in connection herewith or therewith, and the
consummation of the Transactions.

     10.5 Parties in Interest; Assignment. This Agreement is binding upon and is
solely for the benefit of the parties hereto and their respective permitted
successors, legal representatives and permitted assigns. None of AT&T PCS, TWR,
the Company, any Cash Equity Investor, any TeleCorp Investor, or any Management
Stockholder may assign its rights and obligations hereunder without the prior
written consent of each of the other parties; provided, that: (a) the Company
shall have the right to assign its rights under this Agreement to the lenders
(the "Lenders") named in the Credit Agreement, as security pursuant to the terms
      -------
of the Credit Documents, it being understood that as a result of any such
assignment to the Lenders, after an event of default under the Credit Agreement
and the expiration of any applicable grace and cure periods thereunder, the
Lenders shall have the right, on behalf of the Company, to enforce the
obligation of each Cash Equity
<PAGE>

Investor to make capital contributions to the Company in the amounts and on the
dates specified on Schedule I (or such earlier dates as may be established in
accordance with the terms of the Stockholders Agreement) and that, in connection
with any such assignment to the Lenders, the Lenders shall not assume any
obligations of the Company hereunder; (b) AT&T PCS and TWR shall have the right
to assign to AT&T Corp., or to one or more direct or indirect wholly owned
Subsidiaries of AT&T Corp., any and all rights and obligations of AT&T PCS or
TWR, as the case may be, under this Agreement, provided, that such assignee
shall have assumed in writing all the obligations of AT&T PCS or TWR as the case
may be, hereunder and no such assignment shall relieve AT&T PCS of its
obligations hereunder; and (c) any Cash Equity Investor may assign its rights
and obligations hereunder with the prior written consent of AT&T PCS, such
consent not to be unreasonably withheld, and any Cash Equity Investor may assign
its rights and obligations hereunder to any Affiliate, provided, that such
assignee shall have assumed in writing all the obligations of such Cash Equity
Investor hereunder and no such assignment shall relieve such Cash Equity
Investor of its obligations hereunder.

     10.6  Applicable Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of New York without giving effect to the
conflicts of law principles thereof. The parties hereto hereby irrevocably and
unconditionally consent to submit to the non-exclusive jurisdiction of the
courts of the State of New York and of the United States of America located in
the County of New York, New York (the "New York Courts") for any litigation
                                       ---------------
arising out of or relating to this Agreement and the Transactions, waive any
objection to the laying of venue of any such litigation in the New York Courts
and agrees not to plead or claim in any New York Court that such litigation
brought therein has been brought in an inconvenient forum.

     10.7  Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

     10.8  Interpretation. The article and section headings contained in this
Agreement are for convenience of reference only, are not part of the agreement
of the parties and shall not affect in any way the meaning or interpretation of
this Agreement. All pronouns and any variations thereof shall be deemed to refer
to the masculine, feminine or neuter, singular or plural, as the identity of the
antecedent Person or Person may require.

     10.9  Entire Agreement. This Agreement and the Related Agreements,
including the exhibits and schedules hereto and thereto and the certificates and
instruments delivered pursuant to the terms of this Agreement and the Related
Agreements, embody the entire agreement and understanding of the parties hereto
in respect of the Transactions. There are no restrictions, promises,
representations, warranties, covenants or undertakings, other than those
expressly set forth or referred to herein or the Related Agreements. This
Agreement and the Related Agreements supersede all prior agreements and
understandings between the parties with respect to such Transactions.

     10.10 Publicity. So long as this Agreement is in effect, the parties agree
to consult with each other in issuing any press release or otherwise making any
public statement with respect to the Transactions, and no party shall issue any
press release or make any such public statement prior to such consultation,
except as may be required by Law. No press release or other public statement by
the parties hereto shall disclose any of the financial terms of the Transactions
without the prior consent of the other parties, except as may be required by
Law. A breach of the provisions of this Section 10.10 by a party shall not give
rise to any right to terminate this Agreement.
<PAGE>

     10.11  Specific Performance. The parties hereto agree that irreparable
damage would occur in the event that any of the provisions of this Agreement
were not performed in accordance with their specific terms or were otherwise
breached. It is accordingly agreed that the parties shall be entitled to an
injunction or injunctions to prevent breaches of this Agreement and to enforce
specifically the terms and provisions hereof in any New York Courts.

     10.12  Remedies Cumulative. All rights, powers and remedies provided under
this Agreement or otherwise available in respect hereof at law or in equity
shall be cumulative and not alternative, and the exercise or beginning of the
exercise of any thereof by any party shall not preclude the simultaneous or
later exercise of any other such right, power or remedy by such party.

     10.13  Authorized Agent of AT&T PCS. AT&T PCS hereby authorizes Wireless
PCS, Inc, as its agent, with full power to execute, in the name of and on behalf
of AT&T PCS, the Related Agreements to which AT&T PCS is a party and any and all
other documents that AT&T PCS is required to execute and deliver in connection
with the Closing, and to give and receive all notices, requests, consents,
amendments, demands and other communications to or from AT&T PCS hereunder or
thereunder. Each party hereto (other than AT&T PCS) shall be entitled to rely on
the full power and authority of Wireless PCS, Inc, to act on behalf of AT&T PCS
in accordance with this Section 10.13. Nothing contained in this Section 10.13
shall relieve AT&T PCS from complying with its obligations under this Agreement
or any of the Related Agreements to which it is a party.

            IN WITNESS WHEREOF, the parties have executed this Agreement as of
the date first above written.



                              TELECORP PCS, INC.


                              By: /s/ Gerald T. Verto
                                 -------------------------
                                 Name:
                                 Title: CEO



                              AT&T WIRELESS PCS INC.


                              By: /s/ William W. Hague
                                 -------------------------
                                 Name:
                                 Title:
<PAGE>

                              TWR CELLULAR, INC.


                              By: /s/ William W. Hague
                                 --------------------------
                                 Name:
                                 Title:

                              Cash Equity Investors:


                              CB CAPITAL INVESTORS, L.P.

                              By: CB Capital Investors, Inc.,
                                  Its general partner


                              By: /s/ Michael R. Hannon
                                 --------------------------
                                 Name:  Michael R. Hannon
                                 Title:  General Partner



                              NORTHWOOD VENTURES LLC


                              By: /s/ Peter G. Schiff
                                 --------------------------
                                 Name:  Peter G. Schiff
                                 Title:  President



                              NORTHWOOD CAPITAL PARTNERS LLC


                              By: /s/ Peter G. Schiff
                                 --------------------------
                                 Name:  Peter G. Schiff

<PAGE>

                              Title:  President



                              ONELIBERTY FUND III, L.P.


                              By: /s/ Joseph T. McCullen
                                 ------------------------------
                                 Name:  Joseph T. McCullen, Jr.
                                 Title:  General Partner



                              ONELIBERTY FUND IV, L.P.


                              By: /s/ Joseph T. McCullen
                                 ------------------------------
                                 Name:  Joseph T. McCullen, Jr.
                                 Title:  General Partner



                              MEDIA/COMMUNICATIONS INVESTORS LIMITED PARTNERSHIP

                              By:  M/C Investors General Partner - J. Inc.,
                                   a general partner


                              By: /s/ James F. Wade
                                 ------------------------------
                                 Name:  James F. Wade
                                 Title:  Manager


<PAGE>

                              MEDIA/COMMUNICATIONS PARTNERS III
                              LIMITED PARTNERSHIP



                              By:  M/CP III L.L.C.
                                   Its general partner


                              By: /s/ James F. Wade
                                 --------------------------
                                 Name:  James F. Wade
                                 Title:  Manager



                              EQUITY-LINKED INVESTORS-II

                              By:  ROHIT M. DESAI ASSOCIATES-II
                                   Its general partner


                              By: /s/ Rohit M. Desai
                                 --------------------------
                                 Name:
                                 Title:


                              PRIVATE EQUITY INVESTORS III, L.P.

                              By: ROHIT M. DESAI ASSOCIATES III, LLC,
                                  Its general partner


                              By: /s/ Frank J. Pados
                                 --------------------------
                                 Name:  Frank J. Pados
                                 Title:  Executive Vice President
<PAGE>

                              HOAK COMMUNICATIONS PARTNERS, L.P.

                              By:  HCP Investments, L.P.,
                                   Its general partner

                              By:  Hoak Partners, LLC
                                   Its general partner


                              By: /s/ James M. Hoak
                                 --------------------------
                                 Name:  James M. Hoak
                                 Title: Manager



                              HCP CAPITAL FUND, L.P.

                              By:  James M. Hoak & Co.,
                                   Its general partner


                              By: /s/ James M. Hoak
                                 --------------------------
                                 Name:  James M. Hoak
                                 Title: Chairman


                              ENTERGY TECHNOLOGY HOLDING COMPANY


                              By: /s/ John A. Brayman
                                 --------------------------
                                 Name:  John A. Brayman
                                 Title: President

                              TORONTO DOMINION INVESTMENTS INC.

                              By: /s/ Martha L. Gariepy
                                 --------------------------
                                 Name:  Martha L. Gariepy

<PAGE>

                              Title:  Vice President



                              WHITNEY EQUITY PARTNERS, L.P.

                              By:  J.H. Whitney & Co.,
                                   Its general partner


                              By:/s/ William Laverack, Jr.
                                 -------------------------
                                 Name: William Laverack, Jr.
                                 Title:



                              J.H. WHITNEY STRATEGIC III, L.P.

                              By:  J.H. Whitney & Co.,
                                   Its general partner


                              By:/s/ William Laverack, Jr.
                                 -------------------------
                                 Name:  William Laverack, Jr.
                                 Title:



                              WHITNEY STRATEGIC PARTNERS, III, L.P.

                              By:  J.H. Whitney & Co.,
                                   Its general partner


                              By:/s/ William Laverack, Jr.
                                 -------------------------
                                 Name:  William Laverack, Jr.
                                 Title:
<PAGE>

                              TeleCorp Investors:

                              CB CAPITAL INVESTORS, L.P.

                              By: CB Capital Investors, Inc.,
                                  Its general partner


                              By:/s/ Michael R. Hannon
                                 -------------------------
                                 Name:  Michael R. Hannon
                                 Title: General Partner



                              NORTHWOOD VENTURES LLC


                              By:/s/ Peter G. Schiff
                                 -------------------------
                                 Name:  Peter G. Schiff
                                 Title:  President



                              NORTHWOOD CAPITAL PARTNERS LLC


                              By:/s/ Peter G. Schiff
                                 -------------------------
                                 Name:  Peter G. Schiff
                                 Title:President



                              ONELIBERTY FUND III, L.P.
<PAGE>

                              By:/s/ Joseph T. McCullen, Jr.
                                 ---------------------------
                                 Name:  Joseph T. McCullen, Jr.
                                 Title: General Partner



                              ONELIBERTY FUND IV, L.P.


                              By:/s/ Joseph T. McCullen, Jr.
                                 ---------------------------
                                 Name:  Joseph T. McCullen, Jr.
                                 Title: General Partner



                              MEDIA/COMMUNICATIONS INVESTORS LIMITED PARTNERSHIP

                              By:  M/C Investors General Partner - J. Inc.,
                                   a general partner


                              By:/s/ James F. Wade
                                 -------------------------
                                 Name:  James F. Wade
                                 Title:  Manager



<PAGE>

                           MEDIA/COMMUNICATIONS PARTNERS III LIMITED PARTNERSHIP



                           By:  M/CP III L.L.C.
                                Its general partner


                           By:/s/ James F. Wade
                              -------------------------------------
                              Name:  James F. Wade
                              Title: Manager



                           EQUITY-LINKED INVESTORS-II

                           By:  ROHIT M. DESAI ASSOCIATES-II
                                Its general partner


                           By:/s/ Frank J. Pados
                              -------------------------------------
                              Name:  Frank J. Pados
                              Title: Executive Vice President


                           PRIVATE EQUITY INVESTORS III, L.P.

                           By:  ROHIT M. DESAI ASSOCIATES III, LLC,
                                Its general partner


                           By:/s/ Frank J. Pados
                              -------------------------------------
                              Name:  Frank J. Pados
                              Title: Executive Vice President
<PAGE>

                                   HOAK COMMUNICATIONS PARTNERS, L.P.

                                   By:  HCP Investments, L.P.,
                                        Its general partner

                                   By:  Hoak Partners, LLC
                                        Its general partner


                                   By:/s/ James M. Hoak
                                      ------------------------------
                                      Name:  James M. Hoak
                                      Title:  Manager



                                   HCP CAPITAL FUND, L.P.

                                   By:  James M. Hoak & Co.,
                                        Its general partner


                                   By:/s/ James M. Hoak
                                      ------------------------------
                                      Name:  James M. Hoak
                                      Title:  Chairman



                                   ENTERGY TECHNOLOGY HOLDING COMPANY


                                   By:/s/ John A. Brayman
                                      ------------------------------
                                      Name:  John A. Brayman
                                      Title:  President



                                   TORONTO DOMINION INVESTMENTS INC.
<PAGE>

                                   By:/s/ Martha L. Gariepy
                                      ------------------------------
                                      Name:  Martha L. Gariepy
                                      Title:  Vice President



                                   WHITNEY EQUITY PARTNERS, L.P.

                                   By:  J.H. Whitney & Co.,
                                        Its general partner


                                   By:/s/ William Laverack, Jr.
                                      ------------------------------
                                      Name:  William Laverack, Jr.
                                      Title:



                                   J.H. WHITNEY III, L.P.

                                   By:  J.H. Whitney & Co.,
                                        Its general partner


                                   By:/s/ William Laverack, Jr.
                                      ------------------------------
                                      Name:  William Laverack, Jr.
                                      Title:
<PAGE>

                                   WHITNEY STRATEGIC PARTNERS, III, L.P.

                                   By:  J.H. Whitney & Co.,
                                        Its general partner


                                   By:/s/ William Laverack, Jr.
                                      ------------------------------
                                      Name:  William Laverack, Jr.
                                      Title:



                                   GILDE INTERNATIONAL B.V.


                                   By:/s/ Joseph T. McCullen, Jr.
                                      ------------------------------
                                      Name:  Joseph T. McCullen, Jr.
                                      Title:  Attorney-in-Fact



                                   TELECORP INVESTMENT CORP., LLC


                                   By:/s/ Thomas H. Sullivan
                                      ------------------------------
                                      Name:  Thomas H. Sullivan
                                      Title: Authorized Person



                                   Management Stockholders:

                                   GERALD T. VENTO


                                   /s/ Gerald T. Vento
                                   ---------------------------------

<PAGE>

                                   THOMAS H. SULLIVAN

                                     /s/ Thomas H. Sullivan
                                    --------------------------


<PAGE>

                                  SCHEDULE 1

                  Cash Equity Funding - Supplemental Funding

<TABLE>
<CAPTION>
                                                       Initial Cash           2nd           3rd          4th       Supplemental
              Equity Sources                           Contribution/(2)/  Equity Draw   Equity Draw  Equity Draw    Commitment
                                                       ------------       -----------   -----------  -----------    ----------
<S>                                                    <C>                <C>           <C>          <C>           <C>
CB Capital Investors, Inc.                                122,071           357,494       305,178       305,173      1,089,916
Desai Associates Equity Linked Investors II                61,036           178,747       152,589       152,587        544,959
Private Equity Investors III, L.P.                         61,036           178,747       152,589       152,587        544,959
Hoak Capital Corporation
   Hoak Communications Partners, L.P.                      83,882           245,652       209,703       209,701        748,937
HCP Capital Fund, L.P.                                      7,672            22,468        19,180        19,180         68,501
JH Whitney & Co./(3)/                                      76,295           223,434       190,736       190,734        681,199
Entergy Technology Holding Company                         61,036           178,747       152,589       152,587        544,959
M/C Partners Media/Communications
   Investors Ltd Partnership                               43,946           128,698       109,864       109,863        392,371
Media/Communications Partners III
   Ltd Partnership                                          1,831             5,362         4,578         4,578         16,349
OneLiberty Fund III, L.P.                                  15,259            44,687        38,148        38,147        136,241
Toronto Dominion Investments, Inc.                         15,259            44,687        38,148        38,147        136,241
Northwood Capital Partners
Northwood Ventures LLC                                      8,546            25,025        21,362        21,362         76,295
</TABLE>
<PAGE>

<TABLE>
<S>                                                       <C>             <C>          <C>          <C>           <C>
Northwood Capital Partners LLC                              2,136             6,256        5,341        5,341        19,074
Supplemental Commitment                                   560,004         1,640,004    1,400,005    1,399,987     5,000,000
Cumulative Equity Funding                                 500,004/(1)/    2,200,008    3,600,013    5,000,000
</TABLE>

Note:

/(1)/  If the supplemental closing is not completed with the closing under the
       purchase agreement, then the Time 0 equity contribution herein will be
       funded in the subsequent 3 fundings on a pro rata basis.

/(2)/  The 2nd equity draw will coincide with the 1998 fiscal year end
       (12/31/98), subsequent equity fundings will coincide with the 24 and 36
       month anniversary of the closing.

/(3)/  JH Whitney & Co. will allocate the commitment amongst the following
       entities: Whitney Equity Partners, L.P., J.H. Whitney III, L.P. and
       Whitney Strategic Partners III, L.P.
<PAGE>

                                  Schedule 1
                Cash Equity Funding - w/o Supplemental Funding

<TABLE>
<CAPTION>
                                                     Initial Cash           2nd              3rd           4th        Aggregate
              Equity Sources                         Contribution/(2)/  Equity Draw      Equity Draw   Equity Draw    Commitment
                                                     ------------       -----------      -----------   -----------    ----------
<S>                                                  <C>                <C>              <C>           <C>           <C>
CB Capital Investors, Inc.                             8,583,107         3,514,987         7,901,908    7,901,904     27,901,906
Desai Associates Equity Linked Investors II            4,291,654         1,757,494         3,950,954    3,950,952     13,951,953
   Private Equity Investors III, L.P.                  4,291,654         1,757,494         3,950,954    3,950,952     13,951,953
Hoak Capital Corporation
   Hoak Communications Partners, L.P.                  5,897,882         2,415,323         6,429,796    5,429,793     19,172,794
HCP Capital Fund, L.P.                                   539,448           220,917           496,635      496,635      1,753,635
JH Whitney & Co./(4)/                                  5,354,442         2,190,887         4,938,693    4,938,690     17,438,692
Entergy Technology Holding Company                     4,291,554         1,757,494         3,950,954    3,950,952     13,950,954
M/C Partners Media/Communications Investors
   Ltd Partnership                                     3,089,918         1,265,395         2,844,687    2,844,685     10,044,686
Media/Communications Partners III
   Ltd Partnership                                       128,747            52,725           118,529      118,529        418,529
OneLiberty Fund III, L.P.                              1,072,889           439,374           987,739      987,738      3,487,740
Toronto Dominion Investments, Inc.                     1,072,889           439,374           987,739      987,738      3,487,740
Northwood Capital Partners
   Northwood Ventures LLC                                600,818           246,050           553,134      553,134      1,953,134
Northwood Capital Partners LLC                           150,204            61,512           138,283      138,283        488,284
Aggregate Commitment                                    39,375,005      16,125,005/(1)/   36,250,005   36,249,985    128,000,000
</TABLE>
<PAGE>

<TABLE>
<S>                                               <C>            <C>            <C>            <C>
Cumulative Equity Funding                         39,375,005     65,500,010     91,750,015     128,000,000
</TABLE>

Note:

/(1)/  If the non-supplemental funding is not simultaneous with the initial cash
       equity funding, then the 2nd equity draw (12/31/98) may have to be
       increased to offset any shortfall in the funding of 1998 Operating
       Losses.

/(2)/  The 2/nd/ equity draw will coincide with the 1998 fiscal year end
       (12/31/98). Subsequent equity fundings will coincide with the 24 and 36
       month anniversary of the closing.

/(3)/  CB Capital Investors, Inc. equity funding commitment may be increased by
       1.0M$ in the event management stockholders elect to purchase 1.0M$ of
       Series C Preferred Stock and Class A Common Stock. In such event, the
       funding requirement of each of the other equity investors will be
       proportionately reduced by 1 M$.

/(4)/  JH Whitney & Co. will allocate the commitment amongst the following
       entities: Whitney Equity Partners, L.P., J.H. Whitney III, L.P. and
       Whitney Strategic Partners III, L.P.

<PAGE>

Notice Addresses
- ----------------



CB Capital Investors. L.P.
380 Madison Avenue, 12th Floor
New York, NY 10017
Attn: Michael Hannon
Fax: (212) 622-3101

Private Equity Investors III, L.P.
540 Madison Avenue, 36th Floor
New York. NY 10022
Attn: Rohit M. Desai
Fax: (212) 752-7807

Hoak Communications Partners, L.P.
HCP Capital Fund, L.P.
One Galleria Tower
13355 Noel Road, Suite 1050
Dallas, Texas 75240
Attn: James Hoak
Fax: (972) 960-4899

Whitney Equity Partners, L.P.
J.H. Whitney III, L.P.
Whitney Strategic Partners III, L.P.
177 Broad Street, 15th Floor
Stamford, Connecticut 06901
Attn: William Laverack, Jr.
Fax: (203) 973-1422

Entergy Technology Holding Company
Three Financial Centre
900 South Shackleford Road
Suite 210
Little Rock, Arkansas 72211
Attn: John A. Brayman
Fax: (501) 954-5095

Northwood Ventures LLC
Northwood Capital Partners LLC
75 State Street, Suite 2500
Boston, MA 02109
Attn: James F. Wade
Fax: (617) 345-7201

One Liberty Fund III, L.P.
One Liberty Fund IV, L.P.
One Liberty Square
Boston. MA 02109
<PAGE>

     Attn: Joseph T. McCullen
     Fax: (617) 423-1765

     Toronto Dominion Investments, Inc.
     31 West 52nd Street
     New York, NY 10019-6101
     Attn: Brian Rich
     Fax: (212) 974-8429

     (with a copy to)
     Toronto Dominion Investments, Inc.
     909 Fannin
     Suite 1700
     Houston, Texas 77010
     Attn: Martha Gariepy
     Fax: (713) 652-2647

     Northwood Ventures LLC
     Northwood Capital Partners LLC
     485 Underhill Boulevard, Suite 205
     Syosset, New York 11791-3419
     Attn: Peter Schiff
     Fax: (516) 364-0879
<PAGE>

    SCHEDULE II-A

    TeleCorp Equity Interests

    of TeleCorp Investors/1/

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------------------
    TeleCorp Investors:                          Class A Shares     Class B Shares     Class C Shares    Series A Preferred Shares
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                              <C>                <C>                <C>               <C>
    One Liberty Fund III L.P.                           837.449                               2273.069                       76.567
    Gilde Investment Fund B.V.                            8.457                                 22.962                         .773
    Northwood Ventures                                  289.832                               1837.018                       46.404
    Northwood Capital Partners LLC                       72.700                                459.013                       11.601
    CB Capital Investors, L.P.                          362.531                               2296.031                       58.005
    TeleCorp Investment Corp., L.L.C.                         -                               2658.563                       58.005
    Media/Communications Investors Limited
    Partnership                                          14.501                                 91.841                        2.320
    Media/Communications Partners III Limited
    Partnership                                         348.030                               2204.190                       55.685
    Entergy Technology Holding Company                        -           1973.717             684.846                       58.005
    Total
                                                       1933.369           1973.717           12527.533                      367.365
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

    /1/ TeleCorp Equity Interests also include the shares of Series A Preferred
Stock of TeleCorp to be issued upon conversion of Bridge Notes pursuant to
Section 3.2(b)(ii) of the Securities Purchase Agreement.
<PAGE>

     Notice Addresses
     ----------------



     CB Capital Investors. L.P.
     380 Madison Avenue, 12th Floor
     New York, NY 10017
     Attn: Michael Hannon
     Fax: (212) 622-3101

     Equity-Linked Investors-II
     Private Equity Investors III, L.P.
     540 Madison Avenue, 36/th/ Floor
     New York, NY 10022
     Attn: Rohit M. Desia
     Fax: (212) 752-7807

     Hoak Communications Partners, L.P.
     HCP Capital Fund, L.P.
     One Galleria Tower
     13355 Noel Road, Suite 1050
     Dallas, Texas 75240
     Attn: James Hoak
     Fax: (972) 960-4899

     Whitney Equity Partners, L.P.
     J.H. Whitney III, L.P.
     Whitney Strategic Partners III, L.P.
     177 Broad Street, 15th Floor
     Stamford, Connecticut 06901
     Attn: William Laverack, Jr.
     Fax: (203) 973-1422

     Entergy Technology Holding Company
     Three Financial Centre
     900 South Shackleford Road
     Suite 210
     Little Rock, Arkansas 72211
     Attn: John A. Brayman
     Fax: (501) 954-5095

     Media/Communications Partners III Limited Partnership
     Media/Communications Investors Limited Partnership
     75 State Street, Suite 2500
     Boston. MA 02109
     Ann: James F. Wade
     Fax: (617) 345-7201

     Gilde International B.V.
     One Liberty Fund III, L.P.
     One Liberty Fund IV, L.P.
<PAGE>

     One Liberty Square
     Boston, MA 02109
     Attn: Joseph T. McCullen
     Fax: (617)423-1765

     Toronto Dominion Investments, Inc.
     31 West 52nd Street
     New York, NY 10019-6101
     Attn: Brian Rich
     Fax: (212) 974-8429

     (with a copy to)
     Toronto Dominion Investments, Inc.
     909 Fannin
     Suite 1700
     Houston, Texas 77010
     Attn: Martha Gariepy
     Fax: (713) 652-2647

     Northwood Ventures LLC
     Northwood Capital Partners LLC
     485 Underhill Boulevard, Suite 205
     Syosset, New York 11791-3419
     Attn: Peter Schiff
     Fax: (516) 364-0879

     TeleCorp Investments Corp., LLC
     1110 N. Glebe Road, Suite 300
     Arlington, Virginia 22201
     Attn: General Counsel
     Fax: (703) 522 4873
<PAGE>

     SCHEDULE II-B

     TeleCorp Equity Interest
     of Management Stockholders
     --------------------------
     Gerald T. Vento     1,788.488 Class A Shares
     Thomas H. Sullivan  1,111.763 Class A Shares
<PAGE>

     SCHEDULE III-A

     AT&T PCS Licenses
     -----------------

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
     Market Number           Frequency Block     License Description
- --------------------------------------------------------------------------------
<S>                          <C>                 <C>
         M008                      A             Boston-Providence
- --------------------------------------------------------------------------------
         M019                      A             St. Louis
- --------------------------------------------------------------------------------
         M026                      A             Louisville-Lexington-Evansville
- --------------------------------------------------------------------------------
         B032                      D             Baton Rouge
- --------------------------------------------------------------------------------
         B236                      D             Lafayette-New Iberia
- --------------------------------------------------------------------------------
         B320                      D             New Orleans
- --------------------------------------------------------------------------------
</TABLE>

     TWR Licenses
     ------------

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
     Market Number           Frequency Block     License Description
- --------------------------------------------------------------------------------
<S>                          <C>                 <C>
         M040                      A             Little Rock
- --------------------------------------------------------------------------------
         M028                      B             Memphis-Jackson
- --------------------------------------------------------------------------------
</TABLE>
<PAGE>

                           United States of America

                       Federal Communications Commission

                          RADIO STATION AUTHORIZATION

                       Commercial Mobile Radio Services

                  Personal Communications Service - Broadband


AT&T WIRELESS PCS INC.                       Call Sign: KNLF216
1150 Connecticut Avenue,                     Market: M008 Boston-Providence
N.W., 4/th/ Floor                                    Channel Block:  A
Washington, DC 20036                         File Number: 00013-CW-L-95


          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission contained in the Title 47 of the U.S. Code of Federal Regulations.

         ____________________________________________________________

  Initial Grant Date.............................................June 23, 1995

  Five-year Build Out Date.......................................June 23, 2000

  Expiration Date................................................June 23, 2005

         _____________________________________________________________

          CONDITIONS:
<PAGE>

          Pursuant to Section 309(h) of the Communications Act of 1914, as
amended, (47 U.S.C. (S) 309(h)), this license is subject to the following
conditions: This license does not vest in the licensee any right to operate a
station nor any right in the use of frequencies beyond the term thereof nor in
any other manner than authorized herein. Neither this License nor the right
granted thereunder shall be assigned or otherwise transferred in violation of
the Communications Act of 1934, as amended (47 U.S.C. (S) 151. et seq.). This
licensee is subject in terms to the right of use or control conferred by Section
706 of the Communications Act of 1934. as amended (47 U.S.C. (S) 606).

          Conditions continued on Page 2
          ______________________________________________________________________

          Waivers:

          No waivers associated with this authorization
________________________________________________________________________________

          Issue Date: June 23, 1995                                  Page 1 of 2
          FCC Form 463a
<PAGE>

          KNLF216                AT&T WIRELESS PCS INC.          00013-CW-L-95


          CONDITIONS:

          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is subject to the condition that the remaining
balance of the winning bid amount will be paid in accordance with Part 1 of the
Commission's rules, 47 C.F.R. Part 1.

Issue Date: June 23, 1995                                            Page 2 of 2
FCC Form 463a
<PAGE>

                           United States of America

                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION


                       Commercial Mobile Radio Services

                  Personal Communications Service - Broadband


          AT&T WIRELESS PCS INC.           Call Sign: KNLF237
          1150 Connecticut Avenue,         Market: M019
          N.W., 4/th/ Floor                        St. Louis
          Washington, DC 20036                     Channel Block: A
                                           File Number: 0034-CW-L-95


          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.

           _________________________________________________________

     Initial Grant Date .......................................... June 23, 1995

     Five-year Build Out Date .................................... June 23, 2000

     Expiration Date ............................................. June 23, 2005

           _________________________________________________________

          CONDITIONS:

          Pursuant to Section 309(h) of the Communications Act of 1934, as
amended, (47 U.S.C. (S) 309(h)), this license is subject to the following
conditions: This license does not vest in
<PAGE>

the licensee any right to operate a station nor any right in the use of
frequencies beyond the term thereof nor in any other manner than authorized
herein. Neither this license nor the right granted thereunder shall be assigned
or otherwise transferred in violation of the Communications Act of 1934, as
amended (47 U.S.C. (S) 151, et. seq.). This license is subject in terms to the
right of use or control conferred by Section 706 of the Communications Act of
1934, as amended (47 U.S.C. (S) 606).


          Conditions continued on Page 2.
          ______________________________________________________________________

          WAIVERS:

          No waivers associated with this authorization.
________________________________________________________________________________
<PAGE>

          KNLF237             AT&T WIRELESS PCS INC.             00034-CW-L-95

          CONDITIONS:

          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is subject to the condition that the licensee shall
comply with Section 24.204 of the Commission's rules, 47 C.F.R. 24.204.

          This authorization is subject to the condition that the remaining
balance of the winning bid amount will be paid in accordance with Part 1 of the
Commission's rules, 47 C.F.R. Part 1.


          Issue Date: June 23, 1995                                  Page 2 of 2
          FCC Form 463a
<PAGE>

                           United States of America

                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION


                       Commercial Mobile Radio Services

                  Personal Communications Service - Broadband

     AT&T WIRELESS PCS INC.              Call Sign: KNLF251
     1150 Connecticut Avenue, N.W.,      Market: M026
     4/th/ Floor                                 Louisville-Lexington-Evansville
     Washington, DC 20036                        Channel Block: A
                                         File Number: 0048-CW-L-95


          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.

           ________________________________________________________

     Initial Grant Date ......................................... June 23, 1995

     Five-year Build Out Date ................................... June 23, 2000

     Expiration Date............................................. June 23, 2005

           ________________________________________________________

          CONDITIONS:
<PAGE>

          Pursuant to Section 309(h) of the Communications Act of 1934, as
amended, (47 U.S.C. (S) 309(h)), this license is subject to the following
conditions: This license does not vest in the licensee any right to operate a
station nor any right in the use of frequencies beyond the term thereof nor in
any other manner than authorized herein. Neither this license nor the right
granted thereunder shall be assigned or otherwise transferred in violation of
the Communications Act of 1934, as amended (47 U.S.C. (S) 151, et. seq.). This
license is subject in terms to the right of use or control conferred by Section
706 of the Communications Act of 1934, as amended (47 U.S.C. (S) 606).


          Conditions continued on Page 2.
          ______________________________________________________________________

          WAIVERS:

          No waivers associated with this authorization.
________________________________________________________________________________

          Issue Date: June 23, 1995                                  Page 1 of 2
          FCC Form 463a
<PAGE>

          KNLF251     AT&T WIRELESS PCS INC.     00048-CW-L-95

          CONDITIONS:

          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is subject to the condition that the remaining
balance of the winning bid amount will be paid in accordance with Part 1 of the
Commission's rules, 47 C.F.R. Part 1.

          Issue Date: June 23, 1995                                  Page 2 of 2
          FCC Form 463a

<PAGE>

                           United States of America

                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION

                       Commercial Mobile Radio Services

                  Personal Communications Service - Broadband

     AT&T WIRELESS PCS INC., N/A              Call Sign: KNLG381
     1150 Connecticut Avenue, N.W.,           Market: B032
     4/th/ Floor                                      Baton Rouge, LA
     Washington, DC 20036                             Channel Block: D
                                              File Number: 01519-CW-L-97


          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.


           _________________________________________________________

     Initial Grant Date ......................................... April 28, 1997

     Five-year Build Out Date ................................... April 28, 2002

     Expiration Date ............................................ April 28, 2007

           _________________________________________________________

          CONDITIONS:

          Pursuant to Section 309(h) of the Communications Act of 1934, as
amended, (47 U.S.C. (S) 309(h)), this license is subject to the following
conditions: This license does not vest in

<PAGE>

the licensee any right to operate a station nor any right in the use of
frequencies beyond the term thereof nor in any other manner than authorized
herein. Neither this license nor the right granted thereunder shall be assigned
or otherwise transferred in violation of the Communications Act of 1934, as
amended (47 U.S.C. (S) 151, et. seq.). This license is subject in terms to the
right of use or control conferred by Section 706 of the Communications Act of
1934, as amended (47 U.S.C. (S) 606).


          Conditions continued on Page 2.
          ______________________________________________________________________

          WAIVERS:

          No waivers associated with this authorization.
________________________________________________________________________________

          Issue Date: April 28, 1997                                 Page 1 of 2
          FCC Form 463B
<PAGE>

          KNLF381            AT&T WIRELESS PCS INC.       01519-CW-L-97

          CONDITIONS:

          Grant of this license is without prejudice to any future enforcement
action the Commission may determine is appropriate regarding the bidding
activities of AT&T Wireless PCS, Inc. in the D, E, and F block PCS auction.

          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is subject to the condition that the remaining
balance of the winning bid amount will be paid in accordance with Part 1 of the
Commission's rules, 47 C.F.R. Part 1.

          Issue Date: April 28, 1997
          Page 2 of 2

<PAGE>

                           United States of America

                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION


                       Commercial Mobile Radio Services

                  Personal Communications Service - Broadband



          AT&T WIRELESS PCS INC.,N/A            Call Sign:  KNLG462
          1150 Connecticut Avenue,              Market: B236
          N.W., 4th Floor                               Lafayette-New Iberia,LA
          Washington, DC 20036                          Channel Block: D
                                                 File Number: 01700-CW-L-97


          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.

          _________________________________________________________________

   Initial Grant Date............................................ April 28, 1997

   Five-year Build Out Date...................................... April 28, 2002

   Expiration Date............................................... April 28, 2007

          _________________________________________________________________

          CONDITIONS:
<PAGE>

          Pursuant to Section 309(h) of the Communications Act of 1934, as
amended, (47 U.S.C. (S) 309(h)), this license is subject to the following
conditions: This license does not vest in the licensee any right to operate a
station nor any right in the use of frequencies beyond the term thereof nor in
any other manner than authorized herein. Neither this license nor the right
granted thereunder shall be assigned or otherwise transferred in violation of
the Communications Act of 1934, as amended (47 U.S.C. (S) 151, et. seq.). This
license is subject in terms to the right of use or control conferred by Section
706 of the Communications Act of 1934, as amended (47 U.S.C. (S) 606).

          Conditions continued on Page 2.
          _____________________________________________________________________

          WAIVERS:

          No waivers associated with this authorization.
________________________________________________________________________________

Issue Date: April 28, 1997                                           Page 1 of 2
FCC Form 463B


<PAGE>

          KNLF462            AT&T WIRELESS PCS INC.          01700-CW-L-97


          CONDITIONS:

          Grant of this license is without prejudice to any future enforcement
action the Commission may determine is appropriate regarding the bidding
activities of AT&T Wireless PCS, Inc. in the D, E, and F block PCS auction.

          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is subject to the condition that the remaining
balance of the winning bid amount will be paid in accordance with Part 1 of the
Commission's rules, 47 C.F.R. Part 1.

Issue Date: April 28, 1997
Page 2 of 2

<PAGE>

                           United States of America

                       Federal Communications Commission

                          RADIO STATION AUTHORIZATION

                       Commercial Mobile Radio Services

                  Personal Communications Service - Broadband


          AT&T WIRELESS PCS INC.,N/A             Call Sign:  KNLG500
          1150 Connecticut Avenue,               Market:  B320
          N.W.,4/th/ Floor                                New Orleans,LA
          Washington, DC 20036                            Channel Block: D
                                                 File Number: 01738-CW-L-97


          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.

          _________________________________________________________________

     Initial Grant Date........................................  April 28, 1997

     Five-year Build Out Date..................................  April 28, 2002

     Expiration Date..........................................   April 28, 2007

          _________________________________________________________________

          CONDITIONS:

          Pursuant to Section 309(h) of the Communications Act of 1934, as
amended, (47 U.S.C. (S) 309(h)), this license is subject to the following
conditions: This license does not vest in
<PAGE>

the licensee any right to operate a station nor any right in the use of
frequencies beyond the term thereof nor in any other manner than authorized
herein. Neither this license nor the right granted thereunder shall be assigned
or otherwise transferred in violation of the Communications Act of 1934, as
amended (47 U.S.C. (S) 151, et. seq.). This license is subject in terms to the
right of use or control conferred by Section 706 of the Communications Act of
1934, as amended (47 U.S.C. (S) 606).

               Conditions continued on Page 2.
               ________________________________________________________________

               WAIVERS:

               No waivers associated with this authorization.
________________________________________________________________________________

Issue Date: April 28, 1997                                           Page 1 of 2
FCC Form 463B


<PAGE>

          KNLG500            AT&T WIRELESS PCS INC.        01738-CW-L-97

          CONDITIONS:

          Grant of this license is without prejudice to any future enforcement
action the Commission may determine is appropriate regarding the bidding
activities of AT&T Wireless PCS, Inc. in the D, E, and F block PCS auction.

          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is subject to the condition that the remaining
balance of the winning bid amount will be paid in accordance with Part 1 of the
Commission's rules, 47 C.F.R. Part 1.

Issue Date: April 28, 1997                                           Page 2 of 2
FCC Form 463B

<PAGE>

                           United States of America

                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION


                       Commercial Mobile Radio Services

                  Personal Communications Service - Broadband



          TWR CELLULAR,INC.                      Call Sign:  KNLF256
          1150 Connecticut Avenue,               Market: M028
          N.W. 4/th/ Floor                               MEMPHIS-JACKSON
          Washington, DC 20036                           Channel Block: B
                                                 File Number: 00053-CW-L-95


          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.

          ________________________________________________________________

     Initial Grant Date......................................... June 23, 1995

     Five-year Build Out Date................................... June 23, 2000

     Expiration Date............................................ June 23, 2005

          ________________________________________________________________

          CONDITIONS:

________________________________________________________________________________
     Issue Date: January 9, 1997                                     Page 1 of 2
     FCC Form 463a
<PAGE>

          Pursuant to Section 309(h) of the Communications Act of 1934, as
amended, (47 U.S.C. (S) 309(h)), this license is subject to the following
conditions: This license does not vest in the licensee any right to operate a
station nor any right in the use of frequencies beyond the term thereof nor in
any other manner than authorized herein. Neither this license nor the right
granted thereunder shall be assigned or otherwise transferred in violation of
the Communications Act of 1934, as amended (47 U.S.C. (S) 151, et. seq.). This
license is subject in terms to the right of use or control conferred by Section
706 of the Communications Act of 1934, as amended (47 U.S.C. (S) 606).

          Conditions continued on Page 2.

          ______________________________________________________________________

          WAIVERS:

          No waivers associated with this authorization.
________________________________________________________________________________
          Issue Date: January 9, 1997                                Page 1 of 2
          FCC Form 463a
<PAGE>

          KNLF256         TWR CELLULAR, INC.          00053-CW-L-95

          CONDITIONS:

          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is subject to the condition that the remaining
balance of the winning bid amount will be paid in accordance with Part 1 of the
Commission's rules, 47 C.F.R. Part 1.

________________________________________________________________________________
          Issue Date: January 9, 1997                                Page 2 of 2
          FCC Form 463a

<PAGE>

                           United States of America

                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION


                       Commercial Mobile Radio Services

                  Personal Communications Service - Broadband


          TWR CELLULAR, INC.                      Call Sign: KNLF279
          1150 Connecticut Avenue,                Market: M040
          N.W. 4/th/ Floor                                LITTLE ROCK
          Washington, DC 20036                            Channel Block:  A
                                                  File Number:  00076-CW-L-95


          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.

          ________________________________________________________

     Initial Grant Date..........................................  June 23, 1995

     Five-year Build Out Date....................................  June 23, 2000

     Expiration Date.............................................  June 23, 2005

          ________________________________________________________

          CONDITIONS:

________________________________________________________________________________
          Issue Date: January 9, 1997                                Page 1 of 2
          FCC Form 463a
<PAGE>

          Pursuant to Section 309(h) of the Communications Act of 1934, as
amended, (47 U.S.C. (S) 309(h)), this license is subject to the following
conditions: This license does not vest in the licensee any right to operate a
station nor any right in the use of frequencies beyond the term thereof nor in
any other manner than authorized herein. Neither this license nor the right
granted thereunder shall be assigned or otherwise transferred in violation of
the Communications Act of 1934, as amended (47 U.S.C. (S) 151, et. seq.). This
license is subject in terms to the right of use or control conferred by Section
706 of the Communications Act of 1934, as amended (47 U.S.C. (S) 606).


          Conditions continued on Page 2.

          ______________________________________________________________________

          WAIVERS:

          No waivers associated with this authorization.
________________________________________________________________________________
          Issue Date: January 9, 1997                                Page 2 of 2
          FCC Form 463a

<PAGE>

          KNLF279          TWR CELLULAR, INC.                      00076-CW-L-95

          CONDITIONS:

          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is subject to the condition that the remaining
balance of the winning bid amount will be paid in accordance with Part 1 of the
Commission's rules, 47 C.F.R. Part 1.

________________________________________________________________________________
          Issue Date: January 9, 1997                                Page 2 of 2
          FCC Form 463a


<PAGE>

                                                                  SCHEDULE III-B

                               TeleCorp Licenses

- --------------------------------------------------------------------------------
     Market Number             Freq. Block                 License Description
- --------------------------------------------------------------------------------
             B034                   F                 Beaumont-Port Arthur, TX
- --------------------------------------------------------------------------------
             B257                   F                          Little Rock, AR
- --------------------------------------------------------------------------------
             B290                   F                              Memphis, TN
- --------------------------------------------------------------------------------
             B320                   F                          New Orleans, LA
- --------------------------------------------------------------------------------

<PAGE>

                           United States of America

                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION


                       Commercial Mobile Radio Services

                  Personal Communications Service - Broadband


          TELECORP HOLDING CORP., INC.          Call Sign: KNLG228
          1110 NORTH GLEBE ROAD                 Market: B034
          SUITE 850                                     BEAUMONT-PORT ARTHUR, TX
          ARLINGTON, VA  22201                          Channel Block: F
                                                File Number: 00139-CW-L-97


          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.

          __________________________________________________________

     Initial Grant Date.........................................  April 28, 1997

     Ten Year Build Out Date....................................  April 28, 2007

     Expiration Date............................................  April 28, 2007

          __________________________________________________________

          CONDITIONS:

          Pursuant to Section 309(h) of the Communications Act of 1934, as
amended, (47 U.S.C. 309(h)), this license is subject to the following
conditions: This license does not vest in the licensee any right to operate a
station nor any right in the use of

________________________________________________________________________________
          Issue Date: 11/26/97                                       Page 1 of 2
          FCC Form 4638


<PAGE>

frequencies beyond the term thereof nor in any other manner than authorized
herein. Neither this license nor the right granted thereunder shall be assigned
or otherwise transferred in violation of the Communications Act of 1934, as
amended (47 U.S.C. 151, et. seq.). This license is subject in terms to the right
of use or control conferred by Section 706 of the Communications Act of 1934, as
amended (47 U.S.C. 606).

          (Conditions continued on Page 2)

          ______________________________________________________________________

          WAIVERS:

          No waivers associated with this authorization.

________________________________________________________________________________
          Issue Date: 11/26/97                                       Page 2 of 2

<PAGE>

          KNLG228     TELECORP HOLDING CORP., INC.               001390-CW-L-97

          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is conditioned upon the full and timely payment of
all monies due pursuant to Sections 1.2110 and 24.716 of the Commission's Rules
and the terms of the Commission's installment plan as set forth in the Note and
Security Agreement executed by the licensee.  Failure to comply with this
condition will result in the automatic cancellation of this authorization.

________________________________________________________________________________
          Issue Date: 11/26/97                                       Page 2 of 2

<PAGE>

                            United States of America

                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION


                        Commercial Mobile Radio Services

                  Personal Communications Service - Broadband


          TELECORP HOLDING CORP., INC.           Call Sign: KNLH628
          1110 NORTH GLEBE ROAD                  Market: B290
          SUITE 850                                      MEMPHIS, TN
          ARLINGTON, VA 22201                            Channel Block: F
                                                 File Number: 00870-CW-L-97

          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.


          __________________________________________________________

     Initial Grant Date.......................................... April 28, 1997

     Ten Year Build Out Date..................................... April 28, 2007

     Expiration Date............................................. April 28, 2007

          __________________________________________________________

          CONDITIONS:

          Pursuant to Section 309(h) of the Communications Act of 1934, as
amended, (47 U.S.C. 309(h)), this license is subject to the following
conditions: This license does not vest in the licensee any right to operate a
station nor any right in the use of

________________________________________________________________________________
          Issue Date: 11/26/97                                       Page 1 of 2
          FCC Form 4638
<PAGE>

frequencies beyond the term thereof nor in any other manner than authorized
herein. Neither this license nor the right granted thereunder shall be assigned
or otherwise transferred in violation of the Communications Act of 1934, as
amended (47 U.S.C. 151, et. seq.). This license is subject in terms to the right
of use or control conferred by Section 706 of the Communications Act of 1934, as
amended (47 U.S.C. 606).

          (Conditions continued on Page 2)
          ______________________________________________________________________

          WAIVERS:


          No waivers associated with this authorization.
________________________________________________________________________________
          Issue Date: 11/26/97                                       Page 2 of 2

<PAGE>

              KNLH628TELECORP HOLDING CORP., INC.                  00870-CW-L-97


          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is conditioned upon the full and timely payment of
all monies due pursuant to Sections 1.2110 and 24.716 of the Commission's Rules
and the terms of the Commission's installment plan as set forth in the Note and
Security Agreement executed by the licensee.  Failure to comply with this
condition will result in the automatic cancellation of this authorization.

________________________________________________________________________________
          Issue Date: 11/26/97                                       Page 2 of 2

<PAGE>

                           United States of America

                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION


                       Commercial Mobile Radio Services

                  Personal Communications Service - Broadband

     TELECORP HOLDING CORP., INC.                 Call Sign: KNLH626
     1110 NORTH GLEBE ROAD                        Market: B257
     SUITE 850                                            LITTLE ROCK, AR
     ARLINGTON, VA  22201                                 Channel Block: F
                                                  File Number: 00868-CW-L-97

          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.

         _____________________________________________________________

     Initial Grant Date.......................................... April 28, 1997

     Ten Year Build Out Date..................................... April 28, 2007

     Expiration Date............................................. April 28, 2007

         _____________________________________________________________

          CONDITIONS:

          Pursuant to Section 309(h) of the Communications Act of 1934, as
amended, (47 U.S.C. 309(h)), this license is subject to the following
conditions: This license does not vest in the licensee any right to operate a
station nor any right in the use of frequencies beyond the term thereof nor in
any other manner than authorized herein.

________________________________________________________________________________
     Issue Date: 11/26/97                                            Page 1 of 2
     FCC Form 4638
<PAGE>

Neither this license nor the right granted thereunder shall be assigned or
otherwise transferred in violation of the Communications Act of 1934, as amended
(47 U.S.C. 151, et. seq.). This license is subject in terms to the right of use
or control conferred by Section 706 of the Communications Act of 1934, as
amended (47 U.S.C. 606).


          (Conditions continued on Page 2)
          ______________________________________________________________________

          WAIVERS:


          No waivers associated with this authorization.
________________________________________________________________________________
          Issue Date: 11/26/97                                       Page 2 of 2
          FCC Form 4638

<PAGE>

              KNLH626TELECORP HOLDING CORP., INC.                  00868-CW-L-97



          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is conditioned upon the full and timely payment of
all monies due pursuant to Sections 1.2110 and 24.716 of the Commission's Rules
and the terms of the Commission's installment plan as set forth in the Note and
Security Agreement executed by the licensee.  Failure to comply with this
condition will result in the automatic cancellation of this authorization.

________________________________________________________________________________
          Issue Date: 11/26/97                                       Page 2 of 2
          FCC Form 4638

<PAGE>

                           United States of America

                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION


                       Commercial Mobile Radio Services

                  Personal Communications Service - Broadband


     TELECORP HOLDING CORP., INC.                 Call Sign: KNLH629
     1110 NORTH GLEBE ROAD                        Market: B320
     SUITE 850                                            NEW ORLEANS, LA
     ARLINGTON, VA  22201                                 Channel Block: F
                                                  File Number: 00871-CW-L-97

          The licensee hereof is authorized, for the period indicated, to
construct and operate radio transmitting facilities in accordance with the terms
and conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.

          ___________________________________________________________

     Initial Grant Date.........................................  April 28, 1997

     Ten Year Build Out Date....................................  April 28, 2007

     Expiration Date............................................  April 28, 2007

          ___________________________________________________________

          CONDITIONS:

          Pursuant to Section 309(h) of the Communications Act of 1934, as
amended, (47 U.S.C. 309(h)), this license is subject to the following
conditions: This license does not vest in the licensee any right to operate a
station nor any right in the use of frequencies beyond the term thereof nor in
any other manner than authorized herein. Neither this license nor the right
granted thereunder shall be assigned or otherwise transferred in violation of
the Communications Act of 1934, as amended (47 U.S.C. 151, et. seq.). This
license is subject in terms to the right of use or


<PAGE>

control conferred by Section 706 of the Communications Act of 1934, as amended
(47 U.S.C. 606).

          (Conditions continued on Page 2)
          ______________________________________________________________________

          WAIVERS:


          No waivers associated with this authorization.
________________________________________________________________________________
<PAGE>

             KNLH629TELECORP HOLDING CORP., INC.                  00871-CW-L-97


          This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

          This authorization is conditioned upon the full and timely payment of
all monies due pursuant to Sections 1.2110 and 24.716 of the Commission's Rules
and the terms of the Commission's installment plan as set forth in the Note and
Security Agreement executed by the licensee.  Failure to comply with this
condition will result in the automatic cancellation of this authorization.
<PAGE>

                                                                     SCHEDULE IV
                                                                     -----------

                              Company Territory/1/
                              --------------------

<TABLE>
<CAPTION>
I.      From New Orleans MTA            BTA Market Designator
        --------------------            ---------------------
<S>                                     <C>
        Baton Rouge, LA                           32
        Lafayette-New Iberia, LA                 236
        New Orleans, LA                          320

II.     From Houston, MTA                         34
        -----------------
        Beaumont, TX

III.    From St. Louis MTA
        ------------------
        Cape Giradeau-Sikeston, MO                66
        Carbondale-Marion, IL                     67
        Columbia, MO                              90
        Jefferson City, MO                       217
        Kirksville, MO                           230
        Mount Vernon-Centralia, IL               308
        Poplar Bluff, MO                         355
        Quincy, IL-Hannibal, MO                  367
        Rolla, MO                                383
        Portions of Springfield, MO BTA:         428
        Camden County, MO
        Cedar County, MO
        Dallas County, MO
        Douglas County, MO
        Hickory County, MO
        Laclede County, MO
        Polk County, MO
        Stone County, MO
</TABLE>

______________________
   /1/    The Company Territory is more particularly described in the FCC
applications filed in connection with the transfer of FCC PCS Licenses to the
Licensee.
<PAGE>

<TABLE>
           <S>                              <C>
           Taney County, MO
           Texas County, MO
           Webster County, MO
           Wright County, MO
           West Plains, MO                  470
</TABLE>

<PAGE>

IV.     From Little Rock MTA                 BTA Market Designator
        --------------------                 ---------------------
        El Dorado-Magnolia-Camden, AR                   125
        Fayetteville-Springdale-Rogers, AR              140
        Rogers, AR
        Fort Smith, AR                                  153
        Harrison, AR                                    182
        Hot Springs, AR                                 193
        Joesboro-Paragould, AR                          219
        Little Rock, AR                                 257
        Pine Bluff, AR                                  348
        Russellville, AR                                387

V.      From Memphis-Jackson MTA
        ------------------------
        Blytheville, AR                                  49
        Dyersburg-Union City, TN                        120
        Jackson, TN                                     211
        Portions of Memphis, TN BTA:                    290
        Crittendon County, AR
        Cross County, AR
        Lee County, AR
        Phillips County, AR
        St. Francis County, AR
        Benton County, MS
        Coahoma County, MS
        DeSoto County, MS
        Grenada County, MS
        Lafayette County, MA
        Marshall County, MS
        Panola County, MS
        Quitman County, MS
        Tallahatchie County, MS
        Tate County, MS
<PAGE>

        Tunica County, MS
        Yalobusha County, MS
        Fayette County, TN
        Hardeman County, TN
        Haywood County, TN
        Lauderdale County, TN
        Shelby County, TN
        Tipton County, TN
<PAGE>

VI.     Boston-Providence MTA                     BTA Market Designator
        ---------------------                     ---------------------
        Boston, MA                                          51
        Rockingham County, NH
        Strafford County, NH
        Hyannis, MA                                        201
        Manchester, NH                                     274
        Portions of Worcester County, MA/2/                480

VII.    From Louisville-Lexington-Evansville MTA
        ----------------------------------------
        Evansville, IN BTA                                 135
        Paducah-Murray-Mayfield, KY BTA                    339
<PAGE>

          ____________________
          /2/  The portions of Worcester County are those to the east of the
line described by Points A, B and C on the map included in Schedule 2.1 to this
Agreement.
<PAGE>

                                                                      SCHEDULE V


                    Equity Issued to Cash Equity Investors,
                TeleCorp Investors and Management Stockholders
                ----------------------------------------------

          See revised Schedule V (Share Allocation with Supplemental and Share
Allocation without Supplemental), in Agreement dated as of July 17, 1998, by and
among AT&T Wireless PCS Inc., TWR Cellular, Incl, the Cash Equity Investors, the
TeleCorp Investors, the Management Stockholders and TeleCorp PCS, Inc.
<PAGE>

                                 Schedule 1.1

            Sources & Uses of Cash - Presigning & Pre/Post Closing


<TABLE>
<CAPTION>
Total SOURCES OF CASH
<S>                                        <C>           <C>             <C>           <C>           <C>           <C>
     Initial Equity Investor Funding       3,673,650
     December 1997 pre-signing loan        2,808,500
     January 1998 pre-signing loan                       5,297,700
     Mandatory repayments to TeleCorp
     License Companies                                  (1,524,900)
                                           ---------   -----------
     TOTAL SOURCES of CASH - Pre-Signing   6,482,150     3,772,800

          Cumulative                       6,482,150    10,254,950

Total USES OF CASH

     Interconnect                                                                       67,941       271,763        339,704

     Site Operating Expenses                       0       166,750     1,196,719     1,675,407     1,914,751      4,953,627

     Engineering & Implementation            114,947     1,051,103     1,751,838     2,102,206     2,102,206      7,122,299

     Billing                                       0             0             0         6,202         9,438         15,730

     Customer Care                                 0             0             0       378,491       567,736        946,227

          Sub Total Operational              114,947     1,217,853     2,948,557     4,230,336     4,865,893     13,377,586

     Admin/Financial/Corp/Legal/Bad Debt     247,733     1,716,693     4,713,609     5,656,330     6,632,454     18,966,820
</TABLE>
<PAGE>

<TABLE>
<S>                                    <C>              <C>           <C>          <C>           <C>           <C>
     Marketing & Sales                      104,647        474,657     1,186,642     1,423,970     1,661,298      4,851,214

     Equipment Costs                              0              0             0             0       315,352        315,352
                                       ------------     ----------    ----------   -----------   -----------   ------------

     TOTAL Operating Expenses               467,327      3,400,203     8,848,807    11,310,636    13,474,998     37,510,972

     Capital Expenditures                 3,716,689     11,837,116    44,096,139    74,802,884    41,114,348    175,567,076

     Cash Interest Payments                       0         75,649     1,475,393     1,067,594     2,687,905      6,106,541

     Financing Fees                               0              0     2,250,000     5,893,750        46,875      8,190,625

     AT&T Licenses                                0              0    21,000,000             0             0     21,000,000

     FCC License Deposits                 2,298,234              0             0             0             0      2,298,234

     Cash Interest Income                         0           (766)     (100,097)     (521,433)   (1,108,124)    (1,730,410)
                                       ------------     ----------    ----------   -----------   -----------   ------------

     TOTAL USES of CASH                   6,482,150     15,321,702    77,570,251    93,353,431    56,216,003    248,943,038

          Cumulative                      6,482,150     21,803,352    99,373,603   192,727,035   248,943,038
</TABLE>

Notes: (1) Company expects to enter into a 5-year supply contract in the month
          of February with an infrastructure vendor in the approximate amount of
          282M$, subject to obtaining the consent of management. AT&T and Cash
          Equity Investors representing 66.696% of the Aggregate Commitment of
          all cash Equity Investors (excluding any interested Investors). As
          part of this supply contract, the company will receive 40M$ of non
          recourse purchase money financing.

       (2) Company expects to enter into a 20M$ microwave relocation and a 16M$
          site acquisition and civil construction management contract with Entel
          Technologies, Inc. in the month of February subject to obtaining the
          consent of AT&T and Cash Equity Investors representing 66.666% of the
          Aggregate Commitment of all Cash Equity Investors (excluding any
          interested Investors).
<PAGE>

                                                                    SCHEDULE 2.1


                            Description of Licenses
                            -----------------------
<PAGE>

          Description of Partitioned Area and Disaggregated Spectrum

               The St. Louis MTA has a population of 4,663,926./1/

          AT&T proposes to assign the 20 MHz of A Block broadband PCS spectrum
at 1850-1860 MHz and 1930-1940 MHz to Telecorp PCS, L.L.C. in the following BTAs
and/or other areas within the St. Louis MTA:

- -------------------------------------------------------------------------------
          Area Name                        Area Designator     Area Population
- -------------------------------------------------------------------------------
          Carbondale-Marion, B. BTA               B067             209,497
- -------------------------------------------------------------------------------
          Columbia MO BTA                         B090             190,536
- -------------------------------------------------------------------------------
          Cape Girardeau-Sikeston, MO BTA         B066             181,795
- -------------------------------------------------------------------------------
          Quincy, IL-Hannibal MO BTA              B367             177,213
- -------------------------------------------------------------------------------
          Poplar Bluff, MO BTA                    B355             148,240
- -------------------------------------------------------------------------------
          Jefferson City, MO BTA                  B217             141,404
- -------------------------------------------------------------------------------
          Mount Vernon-Centralia, IL              B308             199,236
- -------------------------------------------------------------------------------
          Rolla, MO BTA                           B383              98,233
- -------------------------------------------------------------------------------
          West Plains, MO BTA                     B470              67,165
- -------------------------------------------------------------------------------
          Kirksville, MO BTA                      B230              55,563
- -------------------------------------------------------------------------------
          Camden County, MO                                         27,495
- -------------------------------------------------------------------------------
          Cedar County, MO                                          12,093
- -------------------------------------------------------------------------------
          Dallas County, MO                                         12,646
- -------------------------------------------------------------------------------
          Douglas County, MO                                        11,376
- -------------------------------------------------------------------------------
          Hickory County, MO                                         7,335
- -------------------------------------------------------------------------------
          Laclede County, MO                                        27,158
- -------------------------------------------------------------------------------
          Polk County, MO                                           21,826
- -------------------------------------------------------------------------------
          Stone County, MO                                          19,078
- -------------------------------------------------------------------------------
<PAGE>

- -------------------------------------------------------------------------------
          Taney County, MO                                          25,561
- -------------------------------------------------------------------------------
          Texas County, MO                                          21,476
- -------------------------------------------------------------------------------
          Webster County, MO                                        23,753
- -------------------------------------------------------------------------------
          Wright County, MO                                         16,758
- -------------------------------------------------------------------------------
          Total Population                                       1,615,987
- -------------------------------------------------------------------------------

          ____________________
          /1/ MTA and BTA population figures in this exhibit were taken from
April 1, 1990 U.S. Census, U.S. Department of Commerce, Bureau of Census, as
published in the Summary of Licenses to Be Auctioned from the August 2, 1995 C
Block Bidder Information Package. Population of non-MTA and BTA areas was taken
from April 1, 1990 U.S. Census.
<PAGE>

          AT&T proposes to retain the 10MHz of A Block broadband PCS spectrum at
1850-1865 MHz and 1940-1945 MHz in the following BTAs and areas within the St.
Louse MTA:


- --------------------------------------------------------------------------------
          Area Name                         Area Designator    Area Population
- --------------------------------------------------------------------------------
          Carbendale-Marion, IL BTA               B067             209,497
- --------------------------------------------------------------------------------
          Columbia, MO BTA                        B090             190,536
- --------------------------------------------------------------------------------
          Cape Girardeau-Sikeston, MO BTA         B066             181,795
- --------------------------------------------------------------------------------
          Quincy, IL-Hannibal, MO BTA             B367             177,213
- --------------------------------------------------------------------------------
          Poplar Bluff, MO BTA                    B355             148,240
- --------------------------------------------------------------------------------
          Jefferson City, MO BTA                  B217             141,404
- --------------------------------------------------------------------------------
          Mount Vernon-Centralia IL               B308             119,286
- --------------------------------------------------------------------------------
          Rolla, MO BTA                           B383              98,233
- --------------------------------------------------------------------------------
          West Plains, MO BTA                     B470              67,165
- --------------------------------------------------------------------------------
          Kirksville, MO BTA                      B230              55,563
- --------------------------------------------------------------------------------
          Camden County, MO                                         27,495
- --------------------------------------------------------------------------------
          Cedar County, MO                                          12,093
- --------------------------------------------------------------------------------
          Dallas County, MO                                         12,646
- --------------------------------------------------------------------------------
          Douglas County, MO                                        11,876
- --------------------------------------------------------------------------------
          Hickory County, MO                                         7,335
- --------------------------------------------------------------------------------
          Laclede County, MO                                        27,158
- --------------------------------------------------------------------------------
          Polk County, MO                                           21,826
- --------------------------------------------------------------------------------
          Stone County, MO                                          19,078
- --------------------------------------------------------------------------------
          Taney County, MO                                          25,561
- --------------------------------------------------------------------------------
          Texas County, MO                                          21,476
- --------------------------------------------------------------------------------
<PAGE>

- --------------------------------------------------------------------------------
          Webster County, MO                                        23,753
- --------------------------------------------------------------------------------
          Wright County, MO                                         16,758
- --------------------------------------------------------------------------------
          Total Population                                       1,615,987
- --------------------------------------------------------------------------------
<PAGE>

          AT&T proposes to retain the full 30 MHz of A Block broadband PCS
spectrum in the following BTAs and areas within the St. Louis MTA:


- --------------------------------------------------------------------------------
          Area Name                Area Designator          Area Population
- --------------------------------------------------------------------------------
          St. Louis, MO BTA             B394                    2,742,114
- --------------------------------------------------------------------------------
          Barry County, MO                                         27,547
- --------------------------------------------------------------------------------
          Christian County, MO                                     32,644
- --------------------------------------------------------------------------------
          Dade County, MO                                           7,449
- --------------------------------------------------------------------------------
          Greene County, MO                                       207,949
- --------------------------------------------------------------------------------
          Lawrence County, MO                                      30,236
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
          Total Population                                      3,047,939
- --------------------------------------------------------------------------------
<PAGE>

          Description of Partitioned Area and Disaggregated Spectrum

   The Louisville-Lexington-Evansville MTA has a population of 3,556,648./1/

          AT&T proposes to assign the 20 MHz of A Block broadband PCS spectrum
at 1850-1860 MHz and 1930-1940 MHz to Telecorp PCS, L.L.C. in the following BTAs
and/or other areas within the Louisville-Lexington-Evansville MTA:

- --------------------------------------------------------------------------------
          Area Name                          Area Designator   Area Population
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
          Evansville, IN BTA                      B135             504,859
- --------------------------------------------------------------------------------
          Paducah-Murray-Mayfield, KY BTA         B339             217,082
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
          Total Population                                         721,941
- --------------------------------------------------------------------------------


          ____________________
          /1/ MTA and BTA population figures in this exhibit were taken from
April 1, 1990 U.S. Census, U.S. Department of Commerce, Bureau of Census, as
published in the Summary of Licenses to Be Auctioned from the August 2, 1995 C
Block Bidder Information Package. Population of non-MTA and BTA areas was taken
from April 1, 1990 U.S. Census.
<PAGE>

     AT&T proposes to retain the 10 MHz of A Block broadband PCS spectrum at
1860-1865 MHz and 1940-1945 MHz in the following BTAs and areas within the
Louisville-Lexington-Evansville MTA:


<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------
            Area Name                           Area Designator             Area Population
- -------------------------------------------------------------------------------------------
<S>                                             <C>                         <C>
- -------------------------------------------------------------------------------------------
            Evansville, IN BTA                        B135                       504,859
- -------------------------------------------------------------------------------------------
            Paducah-Murray-Mayfield KY BTA            B339                       217,082
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
            Total Population                                                     721,941
- -------------------------------------------------------------------------------------------
</TABLE>

           AT&T proposes to retain the full 30 MHz of A Block broadband PCS
spectrum in the following BTAs and areas within the Louisville-Lexington-
Evansville MTA:

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------
            Area Name                           Area Designator             Area Population
- -------------------------------------------------------------------------------------------
<S>                                             <C>                         <C>
- -------------------------------------------------------------------------------------------
            Louisville, KY BTA                        B263                     1,852,955
- -------------------------------------------------------------------------------------------
            Lexington, KY BTA                         B252                       316,101
- -------------------------------------------------------------------------------------------
            Bowling Green-Giasgow, KY BTA             B052                       222,748
- -------------------------------------------------------------------------------------------
            Owensboro, KY BTA                         B338                       157,104
- -------------------------------------------------------------------------------------------
            Cerbin, KY  BTA                           B098                       128,186
- -------------------------------------------------------------------------------------------
            Somerset, KY BTA                          B423                       111,487
- -------------------------------------------------------------------------------------------
            Madisonville, KY BTA                      B273                        46,126
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
            Total Population                                                   2,834,707
- -------------------------------------------------------------------------------------------
</TABLE>

<PAGE>

         /2/Description of Partitioned Area and Disaggregated Spectrum

          The Boston-Providence MTA has a population of 9,452,712./3/

          AT&T proposes to assign the 20 MHz of A Block broadband PCs spectrum
at 1850-1860 MHz and 1930-1940 MHz to Telecorp PCS, L.L.C. in the following BTAs
and/or other areas within the Boston-Providence MTA:

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------
            Area Name                             Area Designator         Area Population
- -------------------------------------------------------------------------------------------
<S>                                               <C>                     <C>
- -------------------------------------------------------------------------------------------
            Rockingham County, NH                                              245,845
- -------------------------------------------------------------------------------------------
            Strafford County, NH                                               104,233
- -------------------------------------------------------------------------------------------
            Hyannis, MA                                B201                    204,256
- -------------------------------------------------------------------------------------------
            Manchester-Nashua-Concord, NH BTA          B274                    540,704
- -------------------------------------------------------------------------------------------
            Portions of Worcester County, MA/4/                                676,837
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
            Total Population                                                 1,771,875
- -------------------------------------------------------------------------------------------
</TABLE>

______________________

               /2/ 430 Form information for Telecorp PCS, Inc. is included in
the 430 Form or Telecorp PCS, L.L.C .
               /3/ MTA and BTA population figures in this exhibit were taken
from April 1, 1990 U.S. Census, U.S. Department of Commerce, Bureau of Census,
as published in the Summary of Licenses to Be Auctioned from the August 2, 1995
C Block Bidder Information Package. Population of non-MTA and BTA areas was
taken from April 1, 1990 U.S. Census.
               /4/ The portions of Worcester County are those to the west of the
line described by points A, B and C on the map of Worcester County attached
hereto.
<PAGE>

          AT&T proposes to retain the 10 MHz of A Block broadband PCS spectrum
at 1860-1865 MHz and 1940-1945 MHz in the following BTAs and areas within the
Boston-Providence MTA:

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------
          Area Name                               Area Designator        Area Population
- -------------------------------------------------------------------------------------------
<S>                                               <C>                    <C>
- -------------------------------------------------------------------------------------------
          Rockingham County, NH                                               245,845
- -------------------------------------------------------------------------------------------
          Strafford County, NH                                                104,233
- -------------------------------------------------------------------------------------------
          Hyannis, MA                                 B201                    204,256
- -------------------------------------------------------------------------------------------
          Manchester-Nashua-Concord, NH BTA           B274                    540,704
- -------------------------------------------------------------------------------------------
          Portions of Worcester County, MA/4/                                 676,837
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------
          Total Population                                                  1,771,875
- -------------------------------------------------------------------------------------------
</TABLE>

          ____________________
          /4/ The portions of Worcester County are those to the west of the line
described by points A, B and C on the map of Worcester County attached hereto.
<PAGE>

          AT&T proposes to retain the full 30 MHz of A Block broadband PCS
spectrum in the following BTAs and areas within the Boston-Providence MTA:

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------
          Area Name                             Area Designator            Area Population
- -------------------------------------------------------------------------------------------------
<S>                                             <C>                        <C>
- -------------------------------------------------------------------------------------------------
          Essex County, MA                                                      670,080
- -------------------------------------------------------------------------------------------------
          Middlesex County, MA                                                1,398,468
- -------------------------------------------------------------------------------------------------
          Norfolk County, MA                                                    616,087
- -------------------------------------------------------------------------------------------------
          Plymouth County, MA                                                   435,276
- -------------------------------------------------------------------------------------------------
          Suffolk County, MA                                                    663,906
- -------------------------------------------------------------------------------------------------
          Providence-Pawtucket RI-New                B364                     1,509,789
          Bedford-Fall River MA
- -------------------------------------------------------------------------------------------------
          Springfield-Holyoke, MA                    B274                       672,970
- -------------------------------------------------------------------------------------------------
          Portland-Brunswick, ME                     B357                       471,614
- -------------------------------------------------------------------------------------------------
          Bangor, ME                                 B030                       316,838
- -------------------------------------------------------------------------------------------------
          Lewiston-Auburn, ME                        B251                       221,697
- -------------------------------------------------------------------------------------------------
          Lebanon-Claremont, NH                      B249                       167,576
- -------------------------------------------------------------------------------------------------
          Waterville-Augusta, ME                     B465                       165,671
- -------------------------------------------------------------------------------------------------
          Pittsfield, MA                             B351                       139,352
- -------------------------------------------------------------------------------------------------
          Keene, NH                                  B227                       111,709
- -------------------------------------------------------------------------------------------------
          Presque Isle, ME                           B363                        89,936
- -------------------------------------------------------------------------------------------------
          Portions of Worcester County, MA/5/                                    32,868
- -------------------------------------------------------------------------------------------------

- -------------------------------------------------------------------------------------------------
          Total Population                                                    7,683,837
- -------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>

     ___________________
     /5/  The portions of Worcester County are those to the east of the line
described by Points A, B and C on the map attached hereto.

                              [MAP APPEARS HERE]
<PAGE>

Description of Disaggregated Spectrum

          TWR proposes to assign the 20 MHz of A Block broadband PCS spectrum at
1850-1860 MHz and 1930-1940 MHz to Telecorp PCS, L.L.C. in the entire Little
Rock MTA.

          TWR proposes to retain the 10 MHz of A Block broadband PCS spectrum at
1860-1865 MHz and 1940-1945 MHz in the entire Little Rock MTA.

                                      25
<PAGE>

          Description of Partitioned Area and Disaggregated Spectrum

          The Memphis-Jackson MTA has a population of 3,465,226./1/

          TWR proposes to assign the 20 MHz of B Block broadband PCS spectrum at
1870-1880 MHz and 1950-1960 MHz to Telecorp PCS, L.L.C. in the following BTAs
and other areas within the Memphis-Jackson MTA.

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------
          Area Name                          Area Designator                   Area Population
- -----------------------------------------------------------------------------------------------
          <S>                                <C>                               <C>
          Blytheville,AR BTA                       B049                              79,446
- -----------------------------------------------------------------------------------------------
          Dyersburg-Union city, TN BTA             B120                             113,943
- -----------------------------------------------------------------------------------------------
          Jackson, TN BTA                          B211                             255,379
- -----------------------------------------------------------------------------------------------
          Crittendon County, AR/2/                                                   49,939
- -----------------------------------------------------------------------------------------------
          Cross County, AR                                                           19,225
- -----------------------------------------------------------------------------------------------
          Lee County, AR                                                             13,053
- -----------------------------------------------------------------------------------------------
          Phillips County, AR                                                        28,838
- -----------------------------------------------------------------------------------------------
          St. Francis County, AR                                                     28,497
- -----------------------------------------------------------------------------------------------
          Benton County, MS                                                           8,046
- -----------------------------------------------------------------------------------------------
          Coahoma County, MS                                                         31,665
- -----------------------------------------------------------------------------------------------
          DeSoto County, MS                                                          67,910
- -----------------------------------------------------------------------------------------------
          Grenada County, MS                                                         21,555
- -----------------------------------------------------------------------------------------------
          Lafayette County, MS                                                       31,826
- -----------------------------------------------------------------------------------------------
          Marshall County, MS                                                        30,361
- -----------------------------------------------------------------------------------------------
          Panola County, MS                                                          29,996
- -----------------------------------------------------------------------------------------------
          Quitman County, MS                                                         10,490
- -----------------------------------------------------------------------------------------------
          Tallahatchie County, MS                                                    15,210
- -----------------------------------------------------------------------------------------------
          Tate County, MS                                                            21,432
- -----------------------------------------------------------------------------------------------
          Tunica County, MS                                                           8,164
- -----------------------------------------------------------------------------------------------
          Yalobusha County, MS                                                       12,033
- -----------------------------------------------------------------------------------------------
          Fayette County, TN                                                         25,559
- -----------------------------------------------------------------------------------------------
          Hardeman County, TN                                                        23,377
- -----------------------------------------------------------------------------------------------
          Haywood County, TN                                                         19,437
- -----------------------------------------------------------------------------------------------
          Lauderdale County, TN                                                      23,491
- -----------------------------------------------------------------------------------------------
          Shelby County, TN                                                         826,330
- -----------------------------------------------------------------------------------------------
          Tipton County, TN                                                          37,568
- -----------------------------------------------------------------------------------------------
          Total Population                                                        1,832,770
- -----------------------------------------------------------------------------------------------
</TABLE>

                                      26
<PAGE>

          ___________________________
          /1/  MTA and BTA population figures in this exhibit were taken from
the April 1, 1990 U.S. Census, U.S. Department of Commerce, Bureau of Census, as
published in the Summary of Licenses To Be Auctioned - from the August 2, 1995 C
Block Bidder Information Package.  Population for non-MTA and BTA areas was
taken from the April 1, 1990 U.S. Census.

          /2/  The Arkansas, Mississippi and Tennessee counties listed are part
of the Memphis, TN BTA

                                      27
<PAGE>

          TWR proposes to retain the 10 MHz of B Block broadband PCS spectrum at
1880-1885 MHz and 1960-1965 MHz in the following BTAs and areas within the
Memphis-Jackson MTA:

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------
          Area Name                          Area Designator               Area Population
- ----------------------------------------------------------------------------------------------
<S>                                          <C>                           <C>
          Blytheville,AR BTA                 B049                               79,446
- ----------------------------------------------------------------------------------------------
          Dyersburg-Union city, TN BTA       B120                              113,943
- ----------------------------------------------------------------------------------------------
          Jackson, TN BTA                    B211                              255,379
- ----------------------------------------------------------------------------------------------
          Crittendon County, AR/3/                                              49,939
- ----------------------------------------------------------------------------------------------
          Cross County, AR                                                      19,225
- ----------------------------------------------------------------------------------------------
          Lee County, AR                                                        13,053
- ----------------------------------------------------------------------------------------------
          Phillips County, AR                                                   28,838
- ----------------------------------------------------------------------------------------------
          St. Francis County, AR                                                28,497
- ----------------------------------------------------------------------------------------------
          Benton County, MS                                                      8,046
- ----------------------------------------------------------------------------------------------
          Coahoma County, MS                                                    31,665
- ----------------------------------------------------------------------------------------------
          DeSoto County, MS                                                     67,910
- ----------------------------------------------------------------------------------------------
          Grenada County, MS                                                    21,555
- ----------------------------------------------------------------------------------------------
          Lafayette County, MS                                                  31,826
- ----------------------------------------------------------------------------------------------
          Marshall County, MS                                                   30,361
- ----------------------------------------------------------------------------------------------
          Panola County, MS                                                     29,996
- ----------------------------------------------------------------------------------------------
          Quitman County, MS                                                    10,490
- ----------------------------------------------------------------------------------------------
          Tallahatchie County, MS                                               15,210
- ----------------------------------------------------------------------------------------------
          Tate County, MS                                                       21,432
- ----------------------------------------------------------------------------------------------
          Tunica County, MS                                                      8,164
- ----------------------------------------------------------------------------------------------
          Yalobusha County, MS                                                  12,033
- ----------------------------------------------------------------------------------------------
</TABLE>

                                      28
<PAGE>

<TABLE>
          <S>                                                                <C>
- ----------------------------------------------------------------------------------------------
          Fayette County, TN                                                    25,559
- ----------------------------------------------------------------------------------------------
          Hardeman County, TN                                                   23,377
- ----------------------------------------------------------------------------------------------
          Haywood County, TN                                                    19,437
- ----------------------------------------------------------------------------------------------
          Lauderdale County, TN                                                 23,491
- ----------------------------------------------------------------------------------------------
          Shelby County, TN                                                    826,330
- ----------------------------------------------------------------------------------------------
          Tipton County, TN                                                     37,568
- ----------------------------------------------------------------------------------------------
          Total Populance                                                    1,832,770
 ----------------------------------------------------------------------------------------------
</TABLE>

          /3/ The Arkansas, Mississippi and Tennessee counties listed are part
of the Memphis, TN BTA

                                      29
<PAGE>

          TWR proposes to retain the full 30 MHz of B Block broadband PCS
spectrum in the following BTAs and areas within the Memphis-Jackson MTA:

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------
         Area Name                          Area Designator                Area Population
- --------------------------------------------------------------------------------------------------
<S>                                          <C>                           <C>
- --------------------------------------------------------------------------------------------------
         Montgomery County, MS/4/                                                12,388
- --------------------------------------------------------------------------------------------------
         Jackson, MS BTA                          B210                          615,521
- --------------------------------------------------------------------------------------------------
         Tupelo-Corinth, MS BTA                   B449                          291,701
- --------------------------------------------------------------------------------------------------
         Greenville-Greenwood, MS BTA             B175                          213,943
- --------------------------------------------------------------------------------------------------
         Meridian, MS BTA                         B292                          200,024
- --------------------------------------------------------------------------------------------------
         Columbus-Starkville, MS BTA              B094                          166,415
- --------------------------------------------------------------------------------------------------
         Natchez, MS BTA                          B315                           73,214
- --------------------------------------------------------------------------------------------------
         Vicksburg, MS                            B455                           69,250
- --------------------------------------------------------------------------------------------------

- --------------------------------------------------------------------------------------------------

- --------------------------------------------------------------------------------------------------
          Total Population                                                    1,632,456
- --------------------------------------------------------------------------------------------------
</TABLE>

          ___________________
          /4/  Montgomery County is a county within the Memphis, TN BTA.

                                      30
<PAGE>

                                                                    SCHEDULE 4.2
                              Purchaser Consents
                              ------------------


          The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:

          1.  The Federal Communications Commission.

          2.  The Federal Trade Commission/Department of Justice.

          3.  Various Governmental Authorities with respect to Franchise Laws.

                                      31
<PAGE>

                                                                    SCHEDULE 5.2


                  Company and Management Stockholder Consents
                  -------------------------------------------


          The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:

          1.  The Federal Communications Commission.

          2.  The Federal Trade Commission/Department of Justice.

          3.  Various Governmental Authorities with respect to Franchise Laws.

                                      32
<PAGE>

                                                                   SCHEDULE 5.12

                           Minimum Buildout Schedule
                           -------------------------

- --------------------------------------------------------------------------------
Year 1/5/           2.2 million pops (20% of total pops) during the first year.
- --------------------------------------------------------------------------------
                    The initial deployment consists of launching the core urban
          and suburban areas of Memphis and New Orleans.

                    Memphis
                    -------
                    Bartlett, TN
                    Frayser, TN
                    Memphis, TN

                    New Orleans
                    -----------
                    Baton Rouge, LA
                    Kenner, LA
                    Mandeville,LA
                    Metairie, LA
                    New Orleans, LA
                    Slidell, LA

- --------------------------------------------------------------------------------
Year 2              2.2 million pops (20% of total pops) for an aggregate pop
          coverage of 40%.

                    Year 2 consists of launching New England, Little Rock and
          Missouri and enhancing the coverage in all markets during the
          remainder of the year. The coverage at the end of year 2 is detailed
          below.

                    Little Rock
                    -----------
                    Benton, AR
                    Conway, AR
                    Hot Springs, AR
                    Jonesboro, AR
- --------------------------------------------------------------------------------

_____________________

          /5/The years defined as the 12-month periods starting on the date the
FCC approves the transfer of the PCS licenses to TeleCorp PCS.

                                      33
<PAGE>

- --------------------------------------------------------------------------------
                    Little Rock, AR
                    North Little Rock, AR

                    Memphis
                    -------
                    Brownsville, TN
                    Jackson, TN
                    Millington, TN
                    Tunica, MS

                    Missouri
                    --------
                    Columbia, MO
                    Jefferson City, MO

                    New England
                    -----------
                    Cape Cod, MA
                    Concord, NH
                    Manchester, NH
                    Nashua, NH
                    Portsmouth, NH
                    Worcester, MA

                    New Orleans
                    -----------
                    Lafayette, LA
                    Covington, LA
                    Houma, LA

- --------------------------------------------------------------------------------
Year 3              1.65 million pops (15% of total pops) for an aggregate pop
          coverage of 55%.

                    Year 3 consists of building the secondary cities and the
          important associated connecting highways.

                    Little Rock
                    -----------
                    Bentonville, AR
                    Fayetteville, AR
                    Fort Smith, AR
                    Pine Bluff, AR
                    Springdale, AR

                    Memphis
                    -------
                    Covington, TN
                    Humboldt, TN
                    Milan, TN
- --------------------------------------------------------------------------------

                                      34
<PAGE>

- --------------------------------------------------------------------------------
                    Missouri
                    --------
                    Cape Giradeau, MO
                    Carbondale, MO

                    New England
                    -----------
                    Dover, NH
                    Fitchburg, MA
                    Leominster, MA
                    Martha's Vineyard, MA
                    Nantucket, MA
                    Rochester, NH

                    New Orleans
                    -----------
                    Beaumont, TX
                    Hammond, LA

- --------------------------------------------------------------------------------
Year 4              1.65 million pops (15% of total pops) for an aggregate pop
          coverage of 70%.

                    Year 4 consists of continuing to expand the secondary cities
          as well as enhancing the coverage and capacity of the core areas.

                    Little Rock
                    -----------
                    Malvern, AR
                    Morrilton, AR
                    Russellville, AR

                    Memphis
                    -------
                    Batesville MS
                    Dyersburg, TN
                    Oxford, MS
                    Union City, TN

                    Missouri
                    --------
                    Centralia, MO
                    Mount Vernon, MO

                    New England
                    -----------
                    Expansion of the suburban cores surrounding, Worcester,
          Nashua, and Manchester.

                    New Orleans
                    -----------
- --------------------------------------------------------------------------------

                                      35
<PAGE>

- --------------------------------------------------------------------------------
                    Expansion of the suburban cores surrounding New Orleans,
               Baton Rouge, and Lafayette.


- --------------------------------------------------------------------------------
Year 5              550,000 pops (5% of total pops) for an aggregate of coverage
               of 75%.
- --------------------------------------------------------------------------------

                    For all the markets, year 5 consists of adding capacity
               sites and filling in the remaining suburban areas bringing the
               total pop coverage to 75%
- --------------------------------------------------------------------------------

                                      36
<PAGE>

                                                                SCHEDULE 5.16(D)


                         TeleCorp Financial Statements

                                      37
<PAGE>

                         TeleCorp Holding Corp., Inc.
                                 Balance Sheet
                             As of January 2, 1998

<TABLE>
<CAPTION>
ASSETS
- ------
<S>                                                                 <C>
Current Assets
   Cash & cash equivalents                                          $ 2,567,294
   Other current assets                                                  73,734
   Total current assets                                               2,641,028

Property and equipment, net                                             329,360
Capitalized FCC licenses                                              9,886,840
Capitalized interest on FCC licenses                                    131,397
Network under development                                             3,269,793
Microwave relocation                                                     91,667
Other assets                                                             26,673
                                                                    -----------
                                                                     16,376,758
                                                                    ===========

LIABILITIES AND STOCKHOLDERS' EQUITY
- ------------------------------------

Current Liabilities
   Accounts payable                                                   3,179,036
   Investor notes payable                                             2,808,500
   Affiliate payable (TMC)                                              825,966
   Affiliate payable net (License companies)                          1,527,470
   Accrued interest on investor notes payable                             6,144
   Accrued interest payable - US Government financing                   382,935
                                                                    -----------
          Total current liabilities                                   8,730,051

US Government financing-gross                                         9,192,938
Unamortized debt discount                                            (1,465,616)
                                                                    -----------
   US Government financing-net                                        7,727,322

          Total Liabilities                                          16,457,373
                                                                    -----------
Shareholder's Equity
   Common Stock, no par value
   --------------------------
          19,335 shares issued and outstanding                                0
          Preferred Stock, $10,000 par value
          Series A, 10%, 367.38 shares issued
          and outstanding                                             4,158,308
                                                                    -----------

          Total Capital                                               4,158,308

Beginning Retained Earnings                                            (203,006)
Current deficit accumulated during development stage                 (4,035,917)
                                                                    -----------
                                                                     16,376,758
                                                                    ===========
</TABLE>

                                      38
<PAGE>

                         TeleCorp Holding Corp., Inc.
                               Income Statement
                      For the Year Ended January 2, 1998

<TABLE>
<CAPTION>
                                                                    Expenses
                                                                  Year to Date
                                                                  ------------
<S>                                                               <C>
Salary and other related expenses                                   $1,290,010
Legal services                                                         682,190
Professional services                                                  419,594
Travel & entertainment                                                 361,962
Occupancy expenses                                                     180,664
Office postage & miscellaneous other                                   152,602
Office supplies & equipment                                             90,628
Marketing expenses                                                      54,734
Repairs and maintenance                                                 24,186
Depreciation                                                            10,561
Franchise fee                                                            1,112
Allocated operating expenses for fiscal January 1997                  (100,990)
                                                                    ----------
Total operating expenses                                             3,167,253

Interest income                                                        (12,217)
Interest expense                                                       396,362
                                                                    ----------
Total Net Loss                                                       3,551,398
                                                                    ==========
</TABLE>

                                      39
<PAGE>

                                                                   Schedule 6.11

                              TELECORP PCS, INC.
                          1998 RESTRICTED STOCK PLAN


               1.   Purpose.  The purpose of this Restricted Stock Plan (the
                    -------
"Plan") is to advance the interests of TeleCorp PCS, Inc. (the "Company") by
providing an opportunity to selected key employees of the Company and its
subsidiaries to acquire units of securities in the Company ("Units") under this
Plan. By encouraging such ownership, the Company seeks to attract, retain and
motivate employees of superior training, experience and ability.

               2.   Administration.  Except to the extent otherwise provided
                    --------------
herein, this Plan shall be administered by the Compensation Committee of the
Board of Directors of the Company (the "Committee"). Subject to the provisions
of this Plan, the Committee shall have full power to construe and interpret the
Plan and to establish, amend and rescind rules and regulations for its
administration.

               3.   Units Subject to the Plan.  The number of Units that may be
                    -------------------------
awarded to key employees under this Plan (the "Grant Shares") shall not exceed
5,505.03 Units consisting of one share of Series E Preferred Stock and
approximately one and eighty-two hundredths (1.82) shares of Class A Voting
Common Stock (collectively, the "Shares") of the Company outstanding from time
to time; provided that the number of Units shall be reduced by 228.13 Units if
the Supplemental Closing (as defined in Exhibit A to the form of Share Grant
Agreement) has not occurred prior to January 23, 2000. Grant Shares shall be
granted pursuant to the rules set forth in Section 5, and shall be subject to
the vesting provisions of Section 6 of the Plan. Any Grant Shares which for any
reason are forfeited pursuant to the vesting provisions of Section 6 may again
be awarded under the Plan to another Participant (as defined in section 4) in
this Plan. Grant Shares shall be Shares (a) issued by the Company out of its
authorized but unissued shares; or (b) acquired by the Company through a
forfeiture pursuant to the vesting provisions of Section 6 of the Plan.

                                      40
<PAGE>

     4.   Eligible Employees.  Grant Shares may be awarded to such key employees
          ------------------
of the Company or of any of its subsidiaries performing the functions described
on Schedule A hereto, as are selected by the Committee (any such selected
   ----------
employee, a "Participant").

     5.   Award of Grant Shares.  The Committee may, from time to time, make
          ---------------------
awards of Grant Shares to a Participant in the form of Restricted Shares (as
defined in the following paragraph), in its sole discretion. The Committee
shall, in its sole discretion, determine the number of Grant Shares to be
awarded to a Participant.

     Restricted Shares shall consist of Units transferred to Participants
without other payment therefor as additional compensation for their services to
the Company and its affiliates.  Restricted Shares shall be subject to such
terms and conditions as the Committee determines appropriate, including, without
limitation, restrictions on sale or other disposition.

     6.   Vesting.
          -------

               (a)  Grant Shares shall vest in accordance with the vesting
     schedule set forth on Schedule B hereto.
                           ----------

               (b)  With respect to Restricted Shares, the Participant must
     remain employed by the Company or one of its subsidiaries during each of
     the vesting periods set forth on Schedule B hereto in order for such Grant
                                      ----------
     Shares to become vested in him. If the Participant fails to satisfy such
     requirements, the Participant shall forfeit and transfer to the Company or
     one or more persons designated by the Committee all unvested Grant Shares
     awarded to him on such date and the Participant shall have no further
     rights with respect to such unvested Grant Shares.

               (c)  Any Grant Shares not granted on or prior to July 17, 2003
     shall be awarded to Messrs. Gerald T. Vento and Thomas H. Sullivan, pro
     rata in accordance with their stockholdings in the Company received
     pursuant to the terms of the Management

                                      41
<PAGE>

  Agreement by and between the Company and TeleCorp Management Corp., as of the
  date of such Management Agreement.

               (d)  If the Participant's employment with the Company or one of
     its subsidiaries terminates prior to full vesting in any Grant Shares
     awarded hereunder by reason of his retirement under a retirement plan
     maintained by the Company or one of its subsidiaries, the Committee may, in
     its discretion, specify that any Grant Shares awarded to the Participant
     become vested at that time, at a future date or upon the completion of such
     other conditions as the Committee, in its sole discretion, may provide.

     7.   Terms and Conditions of Grant Shares.  Grant Shares awarded under this
          ------------------------------------
Plan shall be awarded pursuant to written agreements ("Agreements") in the form
attached as Exhibit A for Restricted Shares as such form may be changed from
            ---------
time to time by the Committee, each of which Agreement shall evidence among its
terms and conditions the following:

               (a)  Price. Grant Shares shall be awarded for no consideration,
                    -----
     except such minimum consideration as may be required by Delaware law.

               (b)  Number of Shares.  Each Agreement shall specify the number
                    ----------------
     of Grant Shares to which it pertains.

               (c)  Forfeiture of Grant Shares. Each Agreement shall specify
                    --------------------------
     that all or a portion of the Grant Shares shall be subject to forfeiture
     provisions specified in Section 6.

     8.   Nontransferability.  Any Grant Shares which are subject to forfeiture
          ------------------
under the Agreement shall be nontransferable by the Participant except as the
Agreement may otherwise provide.

     9.   Rights as Shareholder.  Except as otherwise provided in this Plan or
          ---------------------
the Agreement, the Participant shall have all of the rights of a shareholder of
the Company with respect to the Grant Shares registered in his name, including
the right to vote such Grant Shares and receive the dividends and other
distributions paid or made with respect to such Grant Shares.

                                      42
<PAGE>

               10.  Share Dividends; Share Splits; Share Combinations;
                    --------------------------------------------------
Recapitalization.  The Board of Directors of the Company shall make appropriate
- ----------------
adjustment in the maximum number of Shares subject to the Plan to give effect to
any share dividends, share splits, share combinations, recapitalizations and
other similar changes in the capital structure of the Company after the date of
award.  The provisions contained in the Plan and in any Agreement shall apply
equally to any other capital shares of the Company, and any other securities,
which may be acquired by the Participant as a result of a share dividend, share
split, share combination, or exchange for other securities resulting from any
recapitalization, reorganization or any other transaction affecting the Grant
Shares.

                                      43
<PAGE>

     11.  Termination or Amendment of Plan.  The Board of Directors may at any
          --------------------------------
time terminate the Plan or make such changes in or additions to the Plan as
it deems advisable without further action on the part of the shareholders of the
Company, provided:

               (a)  that no such termination or amendment shall adversely affect
          or impair any then issued and outstanding Grant Shares without the
          consent of the Participant holding such Grant Shares; and

               (b)  Section 6 (c) may not be amended without the consent of
          Messrs. Vento and Sullivan.

     12.  Construction of Pronouns.  Masculine pronouns used herein shall refer
          ------------------------
to men or women or both and nouns and pronouns when stated in the singular shall
include the plural and when stated in the plural shall include the singular,
wherever appropriate.

                                      44
<PAGE>

                                  Schedule A
                                  ----------

                              Executive Functions
                              -------------------

          Director, Brand Management

          General Manager
               Memphis
               New Orleans
               Little Rock
               New England

          Vice President, Product Development

          Chief Operating Officer

          Chief Financial Officer

          Vice President, Engineering/Operations

          Vice President, Sales/Marketing

          Vice President, Information Technology

<PAGE>

                                  Schedule B
                                  ----------

                               Vesting Schedule
                               ----------------

          TeleCorp Vesting Schedule
          -------------------------

          Executives Hired Before 1/1/98            Vesting
          ------------------------------            -------

          Commencement Date/6/                       20.0%

          Year 1& 2 Build Out Complete/7/            10.0%

          2/nd/ Anniversary of Commencement Date     15.0%

          Year 3 Build Out + 60% Pops Coverage       10.0%

          3/rd/ Anniversary of Commencement Date     15.0%

          4/th/ Anniversary of Commencement Date     15.0%

          5/th/ Anniversary of Commencement Date     15.0%
                                                    ------
                                                    100.0%

          Executives Hired After 1/1/98             Vesting
          -----------------------------             -------

          1/st/ Anniversary of Employment Date       20.0%

          3/rd/ Anniversary of Employment Date       15.0%

          4/th/ Anniversary of Employment Date       15.0%

___________________
          /6/  Commencement Date means the Closing Date as that term is defined
in that certain Securities Purchase Agreement, dated January 23, 1998, as
amended, by and among the Company, AT&T Wireless PCS, Inc., TWR Cellular, Inc.
and certain Cash Equity Investors, TeleCorp Investors and Management
Stockholders identified therein (the "Securities Purchase Agreement").

          /7/  The Build Out Schedule is set forth in Schedule 5.12 of the
Securities Purchase Agreement, a copy of such Schedule 5.12 of which is attached
hereto.
<PAGE>

          5/th/ Anniversary of Employment Date        15.0%

          6/th/ Anniversary of Employment Date        15.0%

          Year 1 & 2 Build Out Complete               10.0%

          Year 3 Build Out + 60% Pops Coverage        10.0%
                                                    -------
                                                    100.00%

<PAGE>

                                                                  EXHIBIT 10.4.1

                                                                  EXECUTION COPY




- --------------------------------------------------------------------------------

                             AT&T WIRELESS SERVICES
                      NETWORK MEMBERSHIP LICENSE AGREEMENT
                                    between
                                   AT&T CORP.
                                      and
                               TELECORP PCS, INC.
                           Dated as of July 17, 1998

- --------------------------------------------------------------------------------
<PAGE>

1.  Definitions................................................................1

2.  GRANT OF LICENSE, ETC......................................................5

    2.1      Grant of License..................................................5

    2.2      No Other Services or Products.....................................5

    2.3      Exclusivity.......................................................6

    2.4      Use of Licensed Marks on Mobile Phones............................6

3.  AGREEMENT PERSONAL.........................................................6

    3.1      Personal to Licensee..............................................6

    3.2      Licensee Acknowledgment...........................................7

4.  USE OF LICENSED MARKS AND OTHER MARKS......................................7

    4.1      Approved Licensee Marks...........................................7

    4.2      Marks To Be Used..................................................7

    4.3      Modification of Licensed Marks....................................8

    4.4      Use of Additional Marks at Licensor's Request.....................8

5.  RETENTION OF RIGHTS........................................................8

6.  SYSTEM REQUIREMENTS........................................................8

7.  QUALITY CONTROL............................................................8

    7.1      General...........................................................8

    7.2      Quality Standards.................................................9

    7.3      Quality Service Reviews; Right of Inspection......................9

    7.4      Authorized Dealers................................................9

    7.5      Sponsorship......................................................10

    7.6      Universal Wireless Consortium....................................10

8.  REMEDIES FOR NONCOMPLIANCE WITH QUALITY STANDARDS.........................10

    8.1      Cure Period......................................................10

    8.2      Potential Injury to Persons or Property..........................11

9.  PROTECTION OF LICENSED MARKS..............................................11

    9.1      Ownership and Rights.............................................11

    9.2      Similar Marks....................................................11

    9.3      Infringement.....................................................12

    9.4      Compliance With Laws.............................................12

10. NO SUBLICENSING...........................................................12

11. TERM AND TERMINATION......................................................13


                                      -i-
<PAGE>

    11.1  Term................................................................13

    11.2  Breach by Licensee..................................................14

    11.3  Termination Obligations.............................................15

    11.4  No Waiver of Rights.................................................15

    11.5  Survival............................................................15

12. INDEMNITY.................................................................15

13. CONSENT OF LICENSOR.......................................................16

14. NOTICES AND DEMANDS.......................................................16

15. COMPLIANCE WITH LAW.......................................................17

16. GOVERNMENTAL LICENSES, PERMITS, AND APPROVALS.............................17

17. APPLICABLE LAW; JURISDICTION..............................................17

18. CONFIDENTIALITY OF INFORMATION AND USE RESTRICTION........................18

19. MISCELLANEOUS.............................................................18

    19.1  NAME, CAPTIONS......................................................18

    19.2  ENTIRE AGREEMENT....................................................18

    19.3  AMENDMENTS, WAIVERS.................................................19

    19.4  SPECIFIC PERFORMANCE................................................19

    19.5  REMEDIES CUMULATIVE.................................................19

    19.6  NO WAIVER...........................................................19

    19.7  NO THIRD PARTY BENEFICIARIES........................................19

    19.8  COUNTERPARTS........................................................19


                                     -ii-
<PAGE>

Schedules
- ---------

Schedule A         Licensed Logo
Schedule B         Licensed Trade Dress
Schedule B I       United States Service Mark Registrations or Applications
Schedule C         Initial Licensed Territory
Schedule D         Quality Control Standards
Schedule E         Guidelines for Use of the Licensed Logo and Licensed Phrase
Schedule F         Permitted Events
<PAGE>

                             AT&T WIRELESS SERVICES

                      NETWORK MEMBERSHIP LICENSE AGREEMENT

     NETWORK MEMBERSHIP LICENSE AGREEMENT (the "Agreement") dated as of July 17,
1998, by and between AT&T Corp., a New York corporation, with offices located at
32 Avenue of the Americas, New York, New York 10013, for itself and its
affiliated companies, including AT&T Wireless Services, Inc. (collectively
"Licensor"), and TeleCorp PCS, Inc., a Delaware corporation, with offices
located at 1110 N. Glebe Road, Arlington, Virginia 22201 ("Licensee"). Certain
capitalized terms used herein are defined in Section 1.

     WHEREAS, Licensor has, for many years, used and Licensor desires that
Licensee use, the AT&T Service Marks, and Licensor desires that Licensee use the
Licensed Marks, in connection with Telecommunications Services;

     WHEREAS, Licensee, an Affiliate of Licensor and the other stockholders of
Licensee are parties to that certain Stockholders Agreement, dated as of the
date hereof (as the same may be amended, modified or supplemented in accordance
with the terms thereof, the "Stockholders Agreement;" capitalized terms defined
therein and not otherwise defined herein being used herein as therein defined)
and the execution and delivery of the Stockholders Agreement and the other
agreements contemplated therein is a condition to Licensee entering into this
Agreement;

     WHEREAS, Licensee wishes to use the Licensed Marks in a limited manner in
the Licensed Territory in connection with the Licensed Activities; and

     WHEREAS, Licensor is willing to license and allow Licensee to use the
Licensed Marks under the terms and conditions set forth in this Agreement.

     NOW, THEREFORE, in consideration of the mutual promises and covenants
herein contained and for other good and valuable consideration the receipt and
sufficiency of which is hereby acknowledged, the parties hereby agree as
follows:

     1.   DEFINITIONS. As used herein, the following terms shall have the
          -----------
meanings set forth below:

     "Affiliate": A Person that directly, or indirectly through one or more
intermediaries, controls, is controlled by, or is under common control with the
Person specified.

     "Approval": The granting by all appropriate Regulatory Authorities of all
necessary licenses, permits, approvals, authorizations and clearances for this
Agreement and the registration or recording of this Agreement as required by all
Regulatory Authorities.

     "Approved Licensee Marks": As defined in Section 4.1.
<PAGE>

     "AT&T Service Marks": The service marks and trademarks AT&T, and AT&T with
a fanciful globe design.

     "Authorized Dealers": Any distributor or other agent of Licensee authorized
to market, advertise or otherwise offer, on behalf of Licensee, any Licensed
Services under the Licensed Marks in the Licensed Territory.

     "Bankruptcy": With respect to a Person, means (i) the filing by such Person
of a voluntary petition seeking liquidation, dissolution, reorganization,
rearrangement or readjustment, in any form, of its debts under Title 11 of the
United States Code (or corresponding provisions of future laws) or any other
bankruptcy or insolvency law, or such Person's filing an answer consenting to,
or acquiescing in any such petition; (ii) the making by such Person of any
assignment for the benefit of its creditors, or the admission by such Person in
writing of its inability to pay its debts as they mature; (iii) the expiration
of 60 days after the filing of an involuntary petition under Title 11 of the
United States Code (or corresponding provisions of future laws), an application
for the appointment of a receiver for the assets of such Person, or an
involuntary petition seeking liquidation, dissolution, reorganization,
rearrangement or readjustment of its debts or similar relief under any
bankruptcy or insolvency law, provided that the same shall not have been
vacated, set aside or stayed within such 60 day period; or (iv) the entry of an
order for relief against such Person under Title 11 of the United States
Bankruptcy Code.

     "Change of Control": Any transaction or event, whether voluntary or
involuntary, that results in, or as a consequence of which, any of the following
events shall occur, except as a result of a sale, transfer or other disposition
by Licensor or any of its Affiliates: (i) any Person, excluding any Person that
is an owner of shares of capital stock of Licensee on the date hereof or that
acquires shares of Voting Preference Common Stock of Licensee pursuant to the
terms of the Management Agreement or the Lenders (as defined in Section 3.1(b))
or any Person to whom the Lenders, with the consent of Licensor, assign this
Agreement, shall acquire, directly or indirectly, Beneficial Ownership (as
defined in Rule 13d-3 of the Securities Exchange Act of 1934, as amended) of (x)
more than 50% of the voting stock of Licensee, or (y) more than 33-1/3% of the
voting stock of Licensee, unless the Persons owning capital stock of Licensee on
the date hereof (together with any Person that acquires Voting Preference Common
Stock of Licensee pursuant to the terms of the Management Agreement)
collectively own a percentage of such voting stock that is higher than such
Person; (ii) any Disallowed Transferee shall acquire, directly or indirectly,
Beneficial Ownership of more than 15% of the voting stock of Licensee; provided
that, for purposes of this Agreement, purchases of Licensee's capital stock made
by third parties in the open market shall not be deemed to be acquisitions of
Licensee's capital stock by Disallowed Transferees; or (iii) a proxy contest for
the election of directors of Licensee results in the persons constituting the
Board of Directors of Licensee immediately prior to the initiation of such proxy
contest ceasing to constitute a majority of the Board of Directors upon the
conclusion of such proxy contest.

     "Company Communications Services": Mobile wireless telecommunications
services (including the transmission of voice, data, image or other messages or
content) provided solely within the Licensed Territory, initiated or terminated
using TDMA and frequencies licensed by the FCC, to or from subscriber equipment
that is capable of usage during routine movement
<PAGE>

throughout the area covered by a cell site and routine handing-off between cell
sites, and is either intended for such usage or is temporarily fixed to a
specific location on a short-term basis (e.g., a bank of wireless telephones
temporarily installed during a special event of limited duration). Without
limiting the foregoing, Company Communications Services shall include wireless
office services if such services comply with this definition. Company
Communications Services shall also include the transmissions between Licensee's
cell sites and Licensee's switch or switches in the Licensed Territory,
handing-off transmissions at Licensee's switch or switches for termination by
other carriers, and receiving transmissions to Licensee's customers handed-off
at Licensee's switch or switches.

     "Company Systems": The systems operated by Licensee to provide Company
Communications Services in the Licensed Territory.

     "Control": For purposes of the definitions of "Affiliate" and "Change of
Control", the term "control" (including the terms "controlling," "controlled
by", and "under common control with") of a Person means the possession, direct
or indirect, of the power to (i) vote 50% or more of the voting securities of
such Person or (ii) direct or cause the direction of the management and policies
of such Person, whether by contract or otherwise.

     "Disallowed Transferee": Any Prohibited Transferee, or any Regional Bell
Operating Companies, Microsoft, GTE, SNET or any of their respective Affiliates,
successors or assigns.

     "FCC": The Federal Communications Commission and any successor governmental
authority.

     "Licensed Activities": Each of the following activities: (a) the provision
to end-users and resellers, solely within the Licensed Territory, of Company
Communications Services on frequencies licensed to Licensee for Commercial
Mobile Radio Services pursuant to the AT&T PCS Contributed Licenses, the
Purchased Licenses, the TeleCorp Licenses, the Mercury Licenses and the
Permitted Cellular Licenses, and the provision in connection with such Company
Communications Services of Adopted Service Features (as defined in the
Stockholders Agreement), and (b) marketing and offering the services and
features described in clause (a) within the Licensed Territory, including
advertising such services and features using broadcast and other media, so long
as such advertising extends beyond the Licensed Territory only when and to the
extent necessary to reach end-users and potential end-users in the Licensed
Territory.

     "Licensed Logo": The logo containing the AT&T and globe design, as such
logo may be modified or replaced pursuant to Section 4.3, and the expression
"Member, AT&T Wireless Services Network," as set forth in Schedule A attached
hereto. Registrations and pending applications covering the Licensed Logo in the
United States are set forth in Schedule B1 attached hereto. The listing of goods
or services in the specification of any of these registrations or applications
which are outside the scope of services authorized under this Agreement shall
not be construed as inclusion of such goods or services in the license granted
by this Agreement; it being understood that the only services authorized under
this Agreement are as expressly set forth in this Agreement.
<PAGE>

     "Licensed Marks": Collectively, the Licensed Logo, the Licensed Phrase, the
Licensed Trade Dress, and any additional Marks that may be licensed hereunder
pursuant to Section 4.3 or 4.4.

     "Licensed Phrase": The expression "Member, AT&T Wireless Services Network"
or the expression " [Licensee] is a member of the AT&T Wireless Services
Network" and the form of such expression as it may be modified or replaced
pursuant to Section 4.3 or 4.4.

     "Licensed Services": The services described in clause (a) of the definition
of the term "Licensed Activities."

     "Licensed Territory": The Territory (as defined in the Stockholders
Agreement). The Licensed Territory as of the date hereof is comprised of those
geographic areas set forth in Schedule C.

     "Licensed Trade Dress": The general image or appearance of the marketing of
services performed under the Licensed Logo, including without limitation, the
colors, designs, sizing configurations, publication formats and the like as set
forth in Schedule B attached hereto and as such trade dress may be modified or
replaced pursuant to Section 4.3, and such other trade dress as may be added
thereto or substituted therefor in accordance with Section 4.3 or 4.4.

     "Licensee": As defined in the preamble.

     "Licensor": As defined in the preamble.

     "Mark": Any name, brand, mark, trademark, service mark, sound mark, trade
dress, trade name, business name, slogan, or other indicia of origin.

     "Marketing Materials": Any and all materials, whether written, oral, visual
or in any other medium, used by Licensee or its Authorized Dealers to market,
advertise or otherwise offer any Licensed Services under the Licensed Marks.

     "Person": Any individual, corporation, partnership, firm, joint venture,
limited liability company, limited liability partnership, association, joint-
stock company, trust, estate, incorporated or unincorporated organization,
governmental or regulatory body, or other entity.

     "Purchased Licenses": The PCS licenses that Licensee has agreed to purchase
from Licensor pursuant to the terms of the License Purchase Agreement, dated as
of January 23, 1998, between Licensor and Licensee, as the same may be amended,
modified or supplemented in accordance with the terms thereof.

     "Quality Control Representatives": Representatives of Licensor appointed in
accordance with Section 7.

     "Quality Standards": The TDMA Quality Standards and the Guidelines for Use
of the Licensed Logo and Licensed Phrase set forth in Schedules D and E to this
Agreement.
<PAGE>

     "Regulatory Authority": Any regulatory, administrative or governmental
entity, authority or agency, including without limitation, the FCC and the
Export Licensing Office of the U.S. Department of Commerce.

     "Significant Breach by Licensee": As defined in Section 11.2.

     "Stockholders Agreement": As defined in the second recital.

     "Successor": With respect to any party, any successor, transferee or
assignee, including without limitation, any receiver, debtor in possession,
trustee, conservator or similar Person with respect to such party or such
party's assets.

     "TDMA Quality Standards": The quality standards applicable to TDMA PCS
Systems and Cellular Systems (as such terms are defined in the Stockholders
Agreement) owned and operated by Licensor's Affiliates in the Central and
Southwest Region, which, as currently in effect, are set forth on Schedule D, as
the same may be amended from time to time, provided any such amended standards
shall become effective one hundred twenty (120) days after notice thereof is
given to Licensee.

     "Telecommunications Service": Any service providing the transmission of
voice, data, image or other messages or content, by radio or by aid of wire,
cable or other means now known or later developed between the points of origin
and reception of such transmission, or by means of any combination of the
foregoing.

     2.  GRANT OF LICENSE, ETC.
         ----------------------

     2.1 Grant of License. Subject to the terms and conditions of this
         ----------------
Agreement, Licensor hereby grants to Licensee a royalty free, non-transferable,
non-sublicensable, non-exclusive limited right and license to use the Licensed
Marks in the Licensed Territory, solely in connection with Licensed Activities.

     2.2 No Other Services or Products. The Licensed Marks may not be used by
         -----------------------------
Licensee in connection with any service, except as expressly set forth in this
Agreement, or any product, except as expressly permitted by the terms of Section
2.4. Specifically, but not by way of limitation, this Agreement does not grant
Licensee the right to use the Licensed Marks in connection with (a) the
manufacture or distribution of any products other than the distribution of
mobile phones to the extent expressly permitted by the terms of Section 2.4, or
(b) any Telecommunications Services, including, but not limited to long distance
services, other than Licensed Services. Accordingly, this Agreement does not
grant any license, authorization or permission to Licensee to appear on an equal
access ballot, or in any other fashion, as a long distance provider using the
Licensed Marks, or to use the Licensed Marks in connection with the reselling of
long distance or local service or any other service. Licensee shall identify to
Licensee's customers that Licensor is their long distance carrier and refer to
Licensor by its Marks and trade dress. This Agreement does not grant Licensee
the right to use any AT&T Service Mark or any other Mark of Licensor in any
manner, except as part of the Licensed Logo, Licensed Phrase and Licensed Trade
Dress as specifically set forth in this Agreement, or in the manner specifically
set forth in Sections 2.4, 4.1, 4.3 and 4.4.
<PAGE>

     2.3 Exclusivity. Licensor (on behalf of itself and its Affiliates) shall
         -----------
not grant to any Person (other than a Subsidiary of Licensor) a right or license
to provide or resell, or act as agent for any Person offering, Company
Communications Services under the Licensed Marks except to any Person that (i)
resells, or acts as Licensee's agent for, Company Communications Services
provided by Licensee, including bundling any such Company Communications
Services with other Telecommunications Services marketed, offered and provided
or resold by such Person pursuant to an agreement between such Person and
Licensor or its Affiliates (in its capacity as reseller or agent) or Licensee,
or (ii) provides or resells wireless Telecommunications Services to or from
specific locations (such as buildings or office complexes), even if the
subscriber equipment used in connection with such service may be capable of
routine movement within a limited area (such as a building or office complex),
and even if such subscriber equipment may be capable of obtaining other
telecommunications services beyond such limited area (which other services may
include routine movement beyond such limited area) and handoff between the
service to such specific location and such other telecommunications services. To
the extent the "other telecommunications services" referred to in clause (ii) of
the immediately preceding sentence constitute Company Communications Services,
Licensor (on behalf of itself and its Affiliates) shall not grant to any Person
a right or license to provide or resell such "other telecommunications services"
under the Licensed Marks, except in accordance with the terms of clause (i) of
the immediately preceding sentence. Nothing herein shall be construed to affect
the obligations of AT&T Wireless PCS Inc. and its Affiliates set forth in
Section 8.6 of the Stockholders Agreement.

     2.4 Use of Licensed Marks on Mobile Phones. In connection with its
         --------------------------------------
marketing, offering and provision of Licensed Services, Licensee may offer and
distribute to end-users mobile phones branded with the same Marks of Licensor,
and in the same manner, as the mobile phones distributed by or on behalf of
Licensor and its Affiliates, provided that such mobile phones (a) are purchased
from Licensor or its Affiliates, (b) are identical to mobile phones offered and
distributed by Licensor and its Affiliates and are purchased from the same
manufacturer (or its authorized dealers), or (c) are manufactured and
distributed by a manufacturer authorized by Licensor to manufacture mobile
phones branded with such Marks (or its authorized dealers).

     3.  AGREEMENT PERSONAL.
         ------------------

     3.1 Personal to Licensee.
         --------------------

         (a) In recognition of the unique nature of the relationship between
Licensor and Licensee, the fact that Licensor would not be willing to enter into
an agreement such as this Agreement with any other party in any other
circumstances, and the unique nature of Licensee (including without limitation,
the fact that Licensee is partially owned by Licensor's Affiliate, AT&T Wireless
PCS Inc.), the parties agree that the rights, obligations and benefits of this
Agreement shall be personal to Licensee, and Licensor shall not be required to
accept performance from, or render performance to an entity other than Licensee
or even to Licensee itself in the event of a Change of Control of Licensee.
Pursuant to 11 U.S.C. (S) 365(c)(1)(A) (as it may be amended from time to time,
and including any successor to such provision), in the event of the Bankruptcy
of Licensee, this Agreement may not be assigned or assumed by Licensee (or
<PAGE>

any Successor) and Licensor shall be excused from rendering performance to, or
accepting performance from, Licensee or any Successor.

         (b) Notwithstanding the foregoing, this Agreement may be assigned to
the lenders (the "Lenders") named in the $435 million Credit Agreement (the
"Credit Agreement") dated the date hereof entered into between Licensee and the
Lenders, and, after a default under the Credit Agreement and the expiration of
any applicable grace and cure periods thereunder, the Lenders may enforce
Licensee's rights hereunder and the Lenders may assign this Agreement to any
Person with the consent of Licensor.

     3.2 Licensee Acknowledgment. Licensee acknowledges and agrees that it
         -----------------------
understands it may have, or, in the future, may elect to enter into, agreements
with Licensor's Affiliates and that neither the execution or continuation nor
the renewal of any of these agreements will have any effect on this Agreement
and Licensee may choose to contract, or not, with Licensor's Affiliates as it
deems appropriate.

     4.  USE OF LICENSED MARKS AND OTHER MARKS.
         -------------------------------------

     4.1 Approved Licensee Marks. Licensee shall have the right from time to
         -----------------------
time during the term hereof to create and use its own Marks, together with the
Licensed Marks, in connection with the Licensed Activities; provided that
Licensee provides Licensor with prior written notice of its desire to use any
such Marks owned by Licensee and Licensor approves Licensee's proposed use of
such Marks (which approval shall not be unreasonably withheld, delayed or
conditioned). Licensor shall use commercially reasonable efforts to approve or
disapprove any Marks proposed to be used by Licensee within 30 days of its
receipt of a written request for such approval. If Licensee has not received a
response from Licensor by the end of such 30-day period, Licensee shall have the
right to send a second written request for such approval to Licensor that states
expressly that, if Licensee does not receive a response from Licensor within 30
days after Licensor's receipt of such second request, Licensor shall be deemed
to have approved Licensee's proposed Mark or Marks. If Licensee does not receive
such response by the end of such second 30-day period, Licensor shall be deemed
to have approved such proposed Mark or Marks. Marks approved by Licensor in
accordance with this Section 4.1 shall be sometimes referred to herein as
"Approved Licensee Marks."

     4.2 Marks To Be Used. Licensee shall conduct all Licensed Activities solely
         ----------------
under the Approved Licensee Marks, together with the Licensed Marks, all in
accordance with guidelines set forth on Schedule E.

     4.3 Modification of Licensed Marks. In the event Licensor modifies or
         ------------------------------
replaces any of the Licensed Marks as they are used in any portion of Licensor's
business, and if Licensor requests Licensee to adopt and use any such modified
or replaced Licensed Marks, Licensee will adopt and use such modified or
replaced Licensed Marks and, in such event, such modified or replaced Licensed
Marks shall be considered the Licensed Marks contemplated by this Agreement;
provided that in such event, Licensee shall be granted a 180-day period during
which to phase-out its use of the superseded forms of the Licensed Marks, as
applicable, and during such 180-day period Licensee shall have the right to use
its existing inventory of Marketing Materials bearing the superseded forms of
the Licensed Marks, as applicable.
<PAGE>

     4.4 Use of Additional Marks at Licensor's Request. Licensor may, from time
         ---------------------------------------------
to time, request Licensee to adopt and use a Mark or Marks of Licensor, in
addition to the then existing Licensed Marks in connection with the Licensed
Activities. Such additional Mark or Marks shall be licensed hereunder on the
same terms as the then existing Licensed Marks and Licensee shall within a
reasonable time, but in any event within one hundred eighty (180) days, comply
with Licensor's request by adopting and using such additional Mark or Marks;
provided that during such 180-day period Licensee shall have the right to use
its existing inventory of Marketing Materials that do not contain the additional
Mark or Marks.

     5.  RETENTION OF RIGHTS. Except as otherwise expressly provided in Section
         -------------------
2, nothing in this Agreement shall be deemed or construed to limit in any way
Licensor's rights in and to the AT&T Service Marks and the Licensed Marks,
including without limitation:

         (a) all rights of ownership in and to the AT&T Service Marks and the
Licensed Marks, including the right to license or transfer the same; and

         (b) the unimpaired right to use the AT&T Service Marks and the Licensed
Marks in connection with marketing, offering or providing any products or
services (including, without limitation Licensed Services) whether within or
without the Licensed Territory.

     6.  SYSTEM REQUIREMENTS. The terms of Sections 8.1(a), 8.2, 8.3, and 8.5(a)
         -------------------
of the Stockholders Agreement are hereby incorporated herein by reference with
the same effect as if set forth herein in their entirety and Licensee shall
comply with its obligations therein.

     7.  QUALITY CONTROL.
         ---------------

     7.1 General. Licensee acknowledges that the services and activities covered
         -------
by this Agreement must be of sufficiently high quality as to provide maximum
enhancement to and protection of the Licensed Marks and the good will they
symbolize. Licensee further acknowledges that the maintenance of high quality
services is of the essence of this Agreement, as is the use of the Licensed
Marks in connection therewith, and that it will utilize only Marketing Materials
which enhance (and do not disparage or place in disrepute) Licensor, its
businesses or its business reputation, and enhance (and do not adversely affect
or detract from) Licensor's good will and will use the Licensed Marks in ways
(but only in ways) which will so enhance Licensor's business reputation and good
will.

     7.2 Quality Standards. Licensee shall use commercially reasonable efforts
         -----------------
to cause the Company Systems to comply with the TDMA Quality Standards. Without
limiting the foregoing, with respect to each material portion of a Company
System (such as a city) that Licensee places in commercial service, on or prior
to the first anniversary of the date such material portion is placed in
commercial service, Licensee shall cause each such material portion to achieve a
level of compliance with the TDMA Quality Standards equal to at least the
average level of compliance achieved by comparable PCS and Cellular Systems
owned and operated by AT&T PCS taking into account, among other things, the
relative stage of development thereof.

     Licensee shall also comply with the Guidelines for Use of the Licensed Logo
and Licensed Phrase as set forth in Schedule E to this Agreement, and which
shall be considered part of the Quality Standards.
<PAGE>

     7.3 Quality Service Reviews; Right of Inspection. Licensor shall have the
         -----------------------
right to designate from time to time, one or more Quality Control
Representatives, who shall have the right at any time, upon fifteen (15) days
notice to Licensee, to conduct during regular business hours an inspection,
test, survey and review of Licensee's facilities and the facilities of
Licensee's Authorized Dealers, if any, and otherwise to determine compliance
with the Quality Standards (each, an "Inspection"); provided that Licensor shall
                                                    --------
use all commercially reasonable efforts to ensure that such Inspections shall
not unreasonably interfere with Licensee's conduct of its business; and provided
                                                                        --------
further that Licensor shall not be permitted to conduct more than two (2)
- -------
Inspections during each 12-month period of the term of this Agreement unless
Licensor reasonably believes that Licensee is not in compliance with the Quality
Standards, in which case Licensor shall be permitted to conduct Inspections from
time to time until Licensee has been determined to be in compliance. Licensee
agrees to collect, maintain and furnish to the Quality Control Representatives:
(i) all performance data relating to Licensee's Licensed Services reasonably
requested by the Quality Control Representatives and representative samples of
Marketing Materials that are marketed or provided under the Licensed Marks for
Inspections to assure conformance of the Licensed Services and the Marketing
Materials with the Quality Standards; and (ii) all performance data in its
control reasonably requested by the Quality Control Representatives relating to
the conformance of Licensed Services with the Quality Standards. Any such data
provided to Licensor shall be treated confidentially in accordance with Section
18. Licensor may independently conduct continuous customer satisfaction and
other surveys to determine if Licensee is meeting the Quality Standards.
Licensee shall cooperate with Licensor fully in the distribution and conduct of
such surveys so long as such cooperation shall not unreasonably interfere with
the conduct of Licensee's business. If Licensee learns that it is not complying
with the Quality Standards in any material respect, it shall notify Licensor,
and the provisions of Section 8 shall apply to such noncompliance.

     7.4 Authorized Dealers. Licensee shall provide to Licensor within 10 days
         ------------------
after the expiration of each calendar quarter during the term of this Agreement
a list of all Authorized Dealers. Licensor shall have the right, exercisable in
its reasonable discretion, to give Licensee written notice requiring Licensee to
terminate any Authorized Dealer that Licensor reasonably believes is not in
compliance with the Quality Standards (after notice of such non-compliance and a
reasonable opportunity to cure has been granted to such Authorized Dealer)
effective no later than 30 days from the date such written notice is given by
Licensor to Licensee. All Authorized Dealers shall be bound by Licensor's
Quality Standards and by Licensee's obligations under this Agreement. A breach
by any such Authorized Dealer of this Agreement shall be deemed a breach of this
Agreement by Licensee; provided that Licensee's termination of such breaching
Authorized Dealer shall be deemed to cure any such breach.

     7.5  Sponsorship. Licensee shall not use the Licensed Marks to sponsor,
          -----------
endorse, or claim affiliation with any event, meeting, charitable endeavor or
any other undertaking (each, an "Event") without the express written permission
of Licensor; provided however that, the categories of Events described on
Schedule F attached hereto shall be deemed pre-approved by Licensor and Licensee
shall not be required to seek permission from Licensor to sponsor, endorse or
claim affiliation with such Events using the Licensed Marks. Notwithstanding the
foregoing, Licensor reserves the right to deny permission to any event and to
amend Schedule F. In the event that Licensee desires to sponsor, endorse or
claim affiliation with an Event not described on Schedule F, Licensee shall
provide Licensor with at least twenty (20) business days
<PAGE>

prior written notice of such Event in reasonable detail and Licensor shall be
deemed to have granted Licensee permission to sponsor, endorse or claim
affiliation with such Event if a denial of permission is not received by
Licensee by the date or time specified in such notice. Any breach of this
provision reasonably determined to have a material adverse effect on Licensor or
the Licensed Marks shall be deemed a Significant Breach by Licensee (in no event
less than ten business days after receipt of the notice).

     7.6 Universal Wireless Consortium. Licensee shall, throughout the term of
         -----------------------------
this Agreement, and any renewals or extensions thereof, be a member of the
Universal Wireless Consortium.

     8.  REMEDIES FOR NONCOMPLIANCE WITH QUALITY STANDARDS.
         -------------------------------------------------

     8.1 Cure Period. If Licensor becomes aware that Licensee or its Authorized
         -----------
Dealers, if any, are not complying with any Quality Standards in any material
respect and notifies Licensee in writing thereof, setting forth, in reasonable
detail, a written description of the noncompliance and any suggestions for
curing such noncompliance, then Licensee shall cure such noncompliance as soon
as is practicable but in any event within thirty (30) days thereafter or, in the
case of noncompliance with the TDMA Quality Standards, if such breach is not
capable of being cured on commercially reasonable terms within such thirty (30)
day period, within one-hundred eighty (180) days of such notice, provided that
Licensee is using commercially reasonable efforts to cure such material breach
as soon as reasonably practicable. In the event that the non-compliance with the
Quality Standards is being caused by an Authorized Dealer, Licensee's
termination of such Authorized Dealer shall be deemed to cure such non-
compliance. If such non-compliance with the Quality Standards continues beyond
the applicable cure period described above, Licensee shall then: (i) cease any
Licensed Activities under the Licensed Marks in the Licensed Territory until it
can comply with the Quality Standards; and (ii) at Licensor's election, be
deemed to be in breach of this Agreement.

     8.2 Potential Injury to Persons or Property. Notwithstanding the foregoing,
         ---------------------------------------
in the event that Licensor reasonably determines that any noncompliance creates
a material threat of personal injury or injury to property of any third party,
upon written notice thereof by Licensor to Licensee, Licensee shall cure such
non-compliance as soon as practicable but in any event within thirty (30) days
after receiving such notice. If the non-compliance continues beyond such cure
period, Licensee shall either cease any Licensed Activities under the Licensed
Marks in the Licensed Territory until it can comply with the Quality Standards,
or be deemed to be in breach of this Agreement.

     9.  PROTECTION OF LICENSED MARKS.
         ----------------------------

     9.1 Ownership and Rights. Licensee admits the validity of, and agrees not
         --------------------
to challenge the ownership or validity of the Licensed Marks. Licensee
acknowledges that it will not obtain any ownership interest in the Licensed
Marks or any other right or entitlement to continued use of them, regardless of
how long this Agreement remains in effect and regardless of any reason or lack
of reason for the termination thereof by Licensor; provided that by making this
acknowledgment Licensee is not waiving, and does not intend to waive, any
contractual rights hereunder or its remedies upon a breach hereof by Licensor.
Licensee shall not disparage,
<PAGE>

dilute or adversely affect the validity of the Licensed Marks. Licensee agrees
that any and all good will and other rights that may be acquired by the use of
the Licensed Marks by Licensee shall inure to the sole benefit of Licensor,
except a security interest granted to the Lenders in accordance with the terms
of the Credit Agreement. Licensee will not grant or attempt to grant a security
interest in the Licensed Marks or this Agreement, or to record any such security
interest in the United States Patent and Trademark Office or elsewhere, against
any trademark application or registration belonging to Licensor. Licensee agrees
to execute all documents reasonably requested by Licensor to effect registration
of, maintenance and renewal of the Licensed Marks. For purposes of this
Agreement, Licensee shall be considered a "related company" under the U.S.
Trademark Act, 15 U.S.C. (S) 1051 et seq.

     9.2 Similar Marks. Licensee further agrees not to register in any country
         -------------
any Mark resembling or confusingly similar to the Licensed Marks or the AT&T
Service Marks, or which dilutes the Licensed Marks or the AT&T Service Marks,
and not to use the Licensed Marks or the AT&T Service Marks or any part thereof
as part of its corporate name, nor use (except in accordance with Section 4.1)
any Mark confusingly similar, deceptive or misleading with respect to the
Licensed Marks or the AT&T Service Marks or which dilutes the Licensed Marks or
the AT&T Service Marks. Licensee further agrees not to use or register in any
country any Mark similar to the Licensed Marks or the AT&T Service Marks, or
which dilutes the Licensed Marks or the AT&T Service Marks. If any application
for registration is, or has been filed in any country by Licensee which relates
to any Mark which, in the sole opinion of Licensor, is confusingly similar,
deceptive or misleading with respect to the Licensed Marks or the AT&T Service
Marks, or which dilutes the Licensed Marks or the AT&T Service Marks, Licensee
shall, at Licensor's sole discretion, immediately abandon any such application
or registration or assign it (free and clear of any Liens, and for consideration
of $1.00) to Licensor. If Licensee uses any Mark which, in the sole opinion of
Licensor, is confusingly similar, deceptive or misleading with respect to the
Licensed Marks or the AT&T Service Marks, or which dilutes the Licensed Marks or
the AT&T Service Marks, or if Licensee uses the Licensed Marks or the AT&T
Service Marks in connection with any product, or in connection with any service
not specifically authorized hereunder, Licensee shall, immediately upon
receiving written request from Licensor, permanently cease such use.
Notwithstanding anything to the contrary contained in this Section 9.2, Licensee
shall have the right to use and register the Approved Licensee Marks that are
used together with the Licensed Marks in accordance with the terms of this
Agreement and the Approved Licensee Marks shall not be deemed by Licensor to
resemble or to be confusingly similar to the Licensed Marks.

     9.3 Infringement. In the event that either party learns of any infringement
         ------------
or threatened infringement of the Licensed Marks, or any unfair competition,
passing-off or dilution with respect to the Licensed Marks, or any third party
alleges or claims that any of the Licensed Marks are liable to cause deception
or confusion to the public, or is liable to dilute or infringe any right of such
third party (each such event, an "Infringement"), such party shall promptly
notify the other party or its authorized representative giving particulars
thereof, and Licensee shall provide necessary information and reasonable
assistance to Licensor or its authorized representatives in the event that
Licensor decides that proceedings should be commenced or defended. For purposes
of this Agreement, Licensee shall be deemed to have "learned" of an Infringement
when either (i) the General Manager of one of Licensee's operating subsidiaries
or divisions or (ii) an executive officer of Licensee obtains actual knowledge
of the Infringement.
<PAGE>

Licensor shall have exclusive control of any litigation, opposition,
cancellation or related legal proceedings. The decision whether to bring,
defend, maintain or settle any such proceedings shall be at the exclusive option
and expense of Licensor, and all recoveries shall belong exclusively to
Licensor. Licensee will not initiate any such litigation, opposition,
cancellation or related legal proceedings in its own name but, at Licensor's
request, agrees to be joined as a party in any action taken by Licensor to
enforce its rights in the Licensed Marks or the AT&T Service Marks; provided
that Licensor shall reimburse Licensee for all reasonable out-of-pocket costs
and expenses incurred by Licensee, its Affiliates and authorized representatives
(and their respective directors, officers, stockholders, employees and agents)
in connection with their participation in such action. Nothing in this Agreement
shall require, or be deemed to require Licensor to enforce the Licensed Marks or
the AT&T Service Marks against others.

     9.4 Compliance With Laws. In the performance of this Agreement, Licensee
         --------------------
shall comply in all material respects with all applicable laws and regulations
and administrative orders, including those laws and regulations particularly
pertaining to the proper use and designation of Marks in the Licensed Territory.
Should Licensee be or become aware of any applicable laws or regulations which
are inconsistent with the provisions of this Agreement, Licensee shall promptly
notify Licensor of such inconsistency. In such event, Licensor may, at its
option, either waive the performance of such inconsistent provisions, or
negotiate with Licensee to make changes in such provisions to comply with
applicable laws and regulations, it being understood that the parties intend
that any such changes shall preserve to the extent reasonably practicable the
parties' respective benefits under this Agreement.

     10. NO SUBLICENSING. Licensee shall not: (i) assign, license, transfer,
         ---------------
dispose or relinquish any of its rights or obligations hereunder (whether by
merger, consolidation, sale, operation of law or otherwise) other than as
contemplated by Section 3.1(b); or (ii) grant or purport to grant any sublicense
in respect of the Licensed Marks; provided that Licensee's Authorized Dealers
and Subsidiaries shall have the right to use the Licensed Marks in accordance
with the Quality Standards in connection with Licensed Activities. Any such
purported assignment, license, transfer, disposition, relinquishment or
sublicense shall be void and of no effect.

     11.  TERM AND TERMINATION.
          --------------------

     11.1 Term.
          ----

          (a) This Agreement shall commence on the date hereof and shall be in
effect for five (5) years following such date, unless terminated earlier
pursuant to this Section 11. Neither party has a right or obligation to renew
this Agreement beyond the initial term; provided, however, that if each party
                                        --------  -------
gives written notice (a "Renewal Notice") to the other party of an election to
renew not less than ninety (90) days prior to the end of the initial term, then,
and only then, shall this Agreement renew for an additional five (5) year term.
During the ten (10) day period commencing one hundred twenty (120) days prior to
the end of the initial term, either party may give written notice (a "Renewal
Request") to the other party requesting that such other party give a Renewal
Notice. No later than ninety (90) days prior to the end of the initial term, the
recipient of a Renewal Request shall give to the requesting party either, in its
sole discretion: (i) a Renewal Notice or (ii) a written notice (a "Non-Renewal
Notice") stating it is not electing to
<PAGE>

renew the term of this Agreement. Any recipient of a Renewal Request that fails
to send either a Renewal Notice or a Non-Renewal Notice in accordance with the
immediately preceding sentence shall be deemed to have given a Renewal Notice.
In the event either party fails to give a Renewal Notice or, in response to a
Renewal Request, gives a Non- Renewal Notice, such party shall be presumed to
have good cause for non- renewal either due to an action or failure to act by
the other party or due to circumstances related to the party who did not provide
the notice. In the event that AT&T Wireless PCS Inc. shall convert any shares of
Series A Preferred Stock of Licensee into Common Stock of Licensee (as such
terms are defined in the Stockholders Agreement), the term of this Agreement
shall expire on the later of (x) two (2) years from the Series A Conversion Date
(as such term is defined in Licensee's Restated Certificate of Incorporation),
and (y) the then existing expiration date of this Agreement.

          (b) Notwithstanding anything to the contrary contained in this Section
11.1, this Agreement may be terminated by Licensor upon written notice to
Licensee at any time following the later to occur of (x) the termination by AT&T
Wireless PCS Inc. of its obligations under Section 8.6 of the Stockholders
Agreement pursuant to Section 8.8(c) of the Stockholders Agreement, and (y) the
second anniversary of the date Licensor (or an affiliate of Licensor) gives
written notice to Licensee that it has entered into a letter of intent or
binding agreement to engage in a Disqualifying Transaction (as defined in the
Stockholders Agreement); provided, however, that in no event shall Licensor have
the right to terminate this Agreement as of a date prior to the fifth
anniversary of the date hereof, provided further however that, in the event that
this Agreement is terminated pursuant to this Section 11.1(b) and Licensee does
not exercise its right pursuant to Section 6.1 of the Stockholders Agreement to
convert all of the shares of Company Stock (as defined in the Stockholders
Agreement) owned by AT&T Wireless PCS Inc. into Series B Preferred Stock (as
defined in the Stockholders Agreement), the termination shall only apply to the
portion of the Territory that constitutes the "Overlap Territory" (as defined in
the Stockholders Agreement) and this Agreement shall remain in full force and
effect with respect to the remainder of the Territory.

     11.2 Breach by Licensee. Licensor may terminate this Agreement at any time
          ------------------
in the event of a Significant Breach by Licensee. A "Significant Breach by
Licensee" shall mean, after exhaustion of any applicable cure periods set forth
in this Agreement, any of the following:

          (a) Licensee's use of any Mark (including the Licensed Marks and the
AT&T Service Marks) contrary to the provisions of this Agreement, or the use by
an Authorized Dealer of any Mark (including the Licensed Marks and the AT&T
Service Marks) contrary to the provisions of this Agreement, including a
violation by Licensee of Section 4.2, in each case which continues for more than
30 days after written notice thereof has been given to Licensee;

          (b) Subject to the provisions of Section 8.1, Licensee's use of the
Licensed Marks in connection with any Marketing Materials, or the offering,
marketing or provision of any Licensed Services, or the conduct of any Licensed
Activities or any other aspect of its business conducted by it, which fail to
meet the Quality Standards in any material respect;

          (c) Licensee's refusing or neglecting a request by Licensor pursuant
to Section 7.3 for access to Licensee's facilities or Marketing Materials, which
refusal or neglect continues for more than five business days after written
notice thereof is given to Licensee;
<PAGE>

          (d) Licensee's licensing, assigning, transferring, disposing of or
relinquishing (or purporting to license, assign, transfer, dispose of or
relinquish) any of the rights granted in this Agreement to others, except as
permitted by Section 10;

          (e) Licensee's failure to maintain the Quality Standards and other
information furnished under this Agreement in confidence pursuant to Section 18,
or failing to restrict the transmission of information, products and commodities
as required by Section 18;

          (f) The occurrence of a Change of Control of Licensee;

          (g) Licensee's loss, for any reason whatsoever, of its rights to hold,
directly or indirectly, the FCC licenses for Company Communications Services in
the Licensed Territory or to provide the Company Communications Services under
such licenses, unless (i) such loss results, directly or indirectly, from the
actions or inactions of Licensor or its Affiliates or (ii) such loss relates to
less than 5% of the POPS in the Licensed Territory;

          (h) The Bankruptcy of Licensee;

          (i) Licensee's failure in any material respect to obtain Licensor's
permission as provided in, or any other material breach of the provisions of,
Section 7.5; or

          (j) Any Substantial Company Breach.

     11.3 Termination Obligations. In the event this Agreement terminates
          -----------------------
pursuant to this Section 11:

          (a) Licensee shall immediately cease use of the Licensed Marks upon
notice of termination, except that Licensee shall have the right to continue to
use the Licensed Marks (including without limitation, Licensee's then existing
inventory of Marketing Materials bearing the Licensed Marks) to the extent such
use is otherwise in accordance with the provisions of this Agreement, for a
period of up to ninety (90) days following such termination; and

          (b) Licensee shall have no further rights under this Agreement, except
as provided in Section 11.5.

     11.4 No Waiver of Rights. In addition to any other provision of this
          -------------------
Section 11, each party will retain all rights to any other remedy it may have at
law or equity for any breach by the other of this Agreement.

     11.5 Survival. Sections 11.3(a), 12.1, 17 and 18 shall survive any
          --------
expiration or termination of this Agreement.

     12.  INDEMNITY.
          ---------

     12.1 Licensor shall defend, indemnify and hold Licensee and its authorized
representatives (including the Authorized Dealers), and their respective
directors, officers, stockholders, employees and agents, harmless against all
claims, suits, proceedings, costs, damages, losses and expenses (including
reasonable attorneys' fees) and judgments incurred,
<PAGE>

claimed or sustained by Licensee or such persons arising out of: (i) claims by
third parties that Licensee's use of the Licensed Marks in accordance with this
Agreement constitutes trademark, service mark or trade dress infringement (or
infringement of any other intellectual property or other proprietary right owned
by a third party), dilution, unfair competition, misappropriation or
false/misleading advertising; (ii) any third party claims as to the lack of
validity or enforceability of (A) the registrations of the Licensed Marks or (B)
Licensor's ownership rights in the Licensed Marks; and (iii) any lack of
validity or enforceability of this Agreement caused by Licensor. Subject to
Licensor's indemnification obligations in the previous sentence, Licensee shall
defend, indemnify and hold Licensor, its Affiliates and authorized
representatives, and their respective directors, officers, stockholders,
employees and agents, harmless against all claims, suits, proceedings, costs,
damages and judgments incurred, claimed or sustained by third parties, whether
for personal injury or otherwise, arising out of Licensee's or any Authorized
Dealer's marketing, sale, or use of services under the Licensed Marks and shall
indemnify Licensor and the foregoing persons for all damages, losses, costs and
expenses (including reasonable attorneys' fees) arising out of such use, sale or
marketing and also for any improper or unauthorized use of the Licensed Marks or
any use of its own Marks. Licensee shall also defend, indemnify and hold
Licensor, its Affiliates and authorized representatives, and their respective
directors, officers, stockholders, employees and agents, harmless against all
claims, suits, proceedings, costs, damages, losses and expenses (including
reasonable attorneys' fees) and judgments incurred, claimed or sustained by
Licensor or such persons arising out of (i) any third party claims as to the
lack of validity or enforceability of (x) the registrations (if any) of the
Approved Licensee Marks or (y) Licensee's ownership rights in the Approved
Licensee Marks; and (ii) any lack of validity or enforceability of this
Agreement caused by Licensee.

     12.2 Licensee shall maintain, at its own expense, in full force and effect
at all times during which Licensed Services bearing the Licensed Marks are being
sold, with a responsible insurance carrier acceptable to Licensor, at least a
Two Million Five Hundred Thousand Dollar ($2,500,000.00) products liability
insurance policy with respect to the Licensed Services offered under the
Licensed Marks. This insurance shall be primary to any of Licensor's coverage,
shall name Licensor as an insured party, shall be for the benefit of Licensor
and Licensee and shall provide for at least ten (10) days' prior written notice
to Licensor and Licensee of the cancellation or any substantial modification of
the policy. This insurance may be obtained for Licensor by Licensee in
conjunction with a policy which covers services and/or products other than the
services covered under this Agreement.

     12.3 Licensee shall from time to time, upon reasonable request by Licensor,
promptly furnish or cause to be furnished to Licensor, evidence in form and
substance satisfactory to Licensor, of the maintenance of the insurance required
by Section 12.2, including without limitation, originals or copies of policies,
certificates of insurance (with applicable riders and endorsements) and proof of
premium payments.

     13.  CONSENT OF LICENSOR. Except where another standard is expressly
          -------------------
provided for herein, whenever reference is made to Licensor's consent or
approval in this Agreement, such consent or approval may be granted or withheld
in Licensor's sole discretion and, if granted, may be done so conditionally or
unconditionally; provided, however, that such standard shall not be interpreted
                 --------  -------
by Licensor as justifying arbitrary rejection, but will connote a
<PAGE>

reasonable application of judgment, taking into consideration Licensor's
licensing practices and customs in telecommunications licensing transactions.

     14.  NOTICES AND DEMANDS. All notices, requests, demands or other
          -------------------
communications required by, or otherwise with respect to this Agreement shall be
in writing and shall be deemed to have been duly given to any party when
delivered personally (by courier service or otherwise), against receipt, when
delivered by telecopy and confirmed by return telecopy, or when actually
received when mailed by registered first-class mail, postage prepaid and return
receipt requested in each case to the applicable addresses set forth below: If
to Licensee:

                               TeleCorp PCS, Inc.
                        1101 17th Street, N.W. Suite 900
                             Washington, D.C. 20036
                             Attn: General Counsel
                             Fax No: (202) 833-4888


     If to Licensor:
                                   AT&T Corp.
                             295 North Maple Avenue
                        Basking Ridge, New Jersey 07920
                           Attention: General Counsel
                            Fax No.: (908) 953-8360

     With a copies to:
                                   AT&T Corp.
                              131 Morristown Road
                      Basking Ridge, New Jersey 07920-1650
                 Attention: Frank L. Politano, General Attorney
                            Fax No.: (908) 204-8537

                                   AT&T Corp.
                              131 Morristown Road
                            Basking Ridge, NJ 07920
                         Attention: Corporate Secretary
                            Fax No.: (908) 953-4657

                          AT&T Wireless Services Inc.
                              5000 Carillon Point
                           Kirkland, Washington 98033
                          Attention: William W. Hague
                            Fax No.: (425) 827-4500

     or to such other address as such party shall have designated by notice so
given to each other party.
<PAGE>

     15.  COMPLIANCE WITH LAW. Subject to the provisions of Section 9.4, nothing
          -------------------
in this Agreement shall be construed to prevent Licensor or Licensee from
complying fully with all applicable laws and regulations, whether now or
hereafter in effect.

     16.  GOVERNMENTAL LICENSES, PERMITS, AND APPROVALS. Licensee, at its
          ---------------------------------------------
expense, shall be responsible for obtaining and maintaining all licenses,
permits and approvals which are required by all Regulatory Authorities with
respect to this Agreement, and to comply with any requirements of such
Regulatory Authorities for the registration or recording of this Agreement.
Licensee shall furnish to Licensor written evidence from such Regulatory
Authorities of any such licenses, permits, clearances, authorizations,
approvals, registration or recording.

     17.  APPLICABLE LAW; JURISDICTION. The construction, performance and
          ----------------------------
interpretation of this Agreement shall be governed by the U.S. Trademark Act, 15
U.S.C. 1051 et seq., and the internal, substantive laws of the State of New
York, without regard to its principles of conflicts of law; provided that if the
foregoing laws should be modified during the term hereof in such a way as to
adversely affect the original intent of the parties, the parties will negotiate
in good faith to amend this Agreement to effectuate their original intent as
closely as possible. Except as otherwise provided herein, Licensor and Licensee
hereby irrevocably submit to the exclusive jurisdiction of the United States
District Court for the Southern District of New York, or absent subject matter
jurisdiction in that court, the state courts of the State of New York located in
New York County for all actions, suits or proceedings arising in connection with
this Agreement, and agree that any such action, suit or proceeding shall be
brought only in such courts (and waive any objection based on forum non
conveniens or any other objection to venue therein). Licensee and Licensor
hereby waive any right to a trial by jury.

     18.  CONFIDENTIALITY OF INFORMATION AND USE RESTRICTION. The Quality
          --------------------------------------------------
Standards and other technical information furnished to Licensee under this
Agreement and other confidential and proprietary information, know-how and trade
secrets of Licensor that are disclosed or otherwise provided to Licensee in
connection with this Agreement, shall remain the property of Licensor, and shall
be returned to Licensor upon request and upon termination of this Agreement.
Unless such information was previously known to Licensee free of any obligation
to keep it confidential, or has been or is subsequently made public (a) by any
person other than Licensee and Licensor is not attempting to limit further
dissemination of such information, (b) by Licensor, or (c) by Licensee, as
required by law (including securities laws) or to enforce its rights under this
Agreement, it shall be held in confidence, and shall be used only for the
purposes of this Agreement. All confidential and proprietary information,
know-how and trade secrets of Licensee that are disclosed or otherwise provided
to Licensor hereunder (including without limitation, during any Inspection)
(collectively, "Licensee Information") shall remain the property of Licensee and
shall be returned to Licensee upon request and upon termination of this
Agreement. Unless such Licensee Information was previously known to Licensor
free of any obligation to keep it confidential, or has been or is subsequently
made public (a) by any person other than Licensor and Licensee is not attempting
to limit further dissemination of such information, (b) by Licensee, or (c) by
Licensor, as required by law (including securities law) or to enforce its rights
under this Agreement, it shall be held in confidence and shall be used only for
purposes of this Agreement.
<PAGE>

     19.  MISCELLANEOUS.
          -------------

     19.1 Name, Captions. The name assigned this Agreement and the section
          --------------
captions used herein are for convenience of reference only and shall not affect
the interpretation or construction hereof.

     19.2 Entire Agreement. The provisions of this Agreement contain the entire
          ----------------
agreement between the parties relating to use by Licensee of the Licensed Marks,
and supersede all prior agreements and understandings relating to the subject
matter hereof. This Agreement shall be interpreted to achieve the objectives and
intent of the parties as set forth in the text and factual recitals of the
Agreement. It is specifically agreed that no evidence of discussions during the
negotiation of the Agreement, or drafts written or exchanged, may be used in
connection with the interpretation or construction of this Agreement. No rights
are granted to use the Licensed Marks or any other marks or trade dress except
as specifically set forth in this Agreement. In the event of any conflict
between the provisions of this Agreement and provisions in any other agreement
involving Licensee, the provisions of this Agreement shall prevail. This
Agreement is not a franchise under federal or state law, does not create a
partnership or joint venture, and shall not be deemed to constitute an
assignment of any rights of Licensor to Licensee. Licensee is an independent
contractor, not an agent or employee of Licensor, and Licensor is not liable for
any acts or omissions by Licensee.

     19.3 Amendments, Waivers. This Agreement may not be amended, changed,
          -------------------
supplemented, waived or otherwise modified except by an instrument in writing
signed by the party against whom enforcement is sought.

     19.4 Specific Performance. The parties acknowledge that money damages are
          --------------------
not an adequate remedy for violations of this Agreement and that any party may,
in its sole discretion, apply to the court set forth in paragraph 17 for
specific performance, or injunctive, or such other relief as such court may deem
just and proper, in order to enforce this Agreement or prevent any violation
hereof, and to the extent permitted by applicable law, each party waives any
objection to the imposition of such relief.

     19.5 Remedies Cumulative. All rights, powers and remedies provided under
          -------------------
this Agreement, or otherwise available in respect hereof at law or in equity
shall be cumulative and not alternative, and the exercise or beginning of the
exercise of any thereof by any party shall not preclude the simultaneous or
later exercise of any other such right, power or remedy by such party.

     19.6 No Waiver. The failure of any party hereto to exercise any right,
          ---------
power or remedy provided under this Agreement, or otherwise available in respect
hereof at law or in equity, or to insist upon compliance by any other party
hereto with its obligations hereunder, and any custom or practice of the parties
at variance with the terms hereof, shall not constitute a waiver by such party
of its right to exercise any such or other right, power or remedy or to demand
such compliance.
<PAGE>

     19.7 No Third Party Beneficiaries. Except with respect to the persons
          ----------------------------
entitled to indemnification under Section 12.1, this Agreement is not intended
to be for the benefit of, and shall not be enforceable by any person or entity
who or which is not a party hereto.

     19.8 Counterparts. This Agreement may be executed in any number of
          ------------
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one instrument. Each counterpart may consist of a
number of copies each signed by less than all, but together signed by all the
parties hereto.



     IN WITNESS WHEREOF, each of the parties has caused this Agreement to be
executed in duplicate originals by its duty authorized representatives as of the
date first stated above.


                                       AT&T CORP.



                                       By:  /s/ Frank L. Politano
                                            ----------------------------
                                            Name: Frank L. Politano
                                            Title: Assistant Secretary
                                                   Authorized Signatory

                                       TELECORP PCS, INC.



                                       By:  /s/ Thomas H. Sullivan
                                            ----------------------------
                                            Name: Thomas H. Sullivan
                                            Title: President

<PAGE>

                                   SCHEDULE A

                                 LICENSED LOGO

                             [LOGO APPEARS HERE]

                                      AT&T

                                     MEMBER
                                  AT&T Wireless
                                    Services
                                     Network

<PAGE>

                                                                      Schedule B
                                                                      ----------


                              LICENSED TRADE DRESS
                              --------------------


1.   The overall configurations of the AT&T and globe design corporate signature
     as set forth more fully in the attached AT&T document Corporate Identity
                                                           ------------------
     Program: Graphic Standards Manual ("Graphic Standards Manual"), and solely
     ---------------------------------
     as expressed in the Licensed Logo set forth in Schedules A and E.

2.   The acceptable color applications of the AT&T and globe design corporate
     signature as set forth in the Graphic Standards Manual, and solely as
                                   ------------------------
     expressed in the Licensed Logo set forth in Schedules A and E.

3.   The acceptable graphic techniques relating to the AT&T and globe design
     corporate signature as set forth in the Graphic Standards Manual, and
                                             ------------------------
     solely as expressed in the Licensed Logo set forth in Schedules A and E.

4.   The acceptable applications of the AT&T globe design corporate signature as
     set forth in Schedule E.

5.   Nothing in this Schedule shall restrict or limit AT&T's claim to trade
     dress rights in or protection of AT&T's Trade Dress.
<PAGE>

                                                                     Schedule B1
                                                                     -----------

UNITED STATES SERVICE MARK REGISTRATIONS OR APPLICATIONS
- --------------------------------------------------------

<TABLE>
<CAPTION>
                            Registration No.         Registration Date
         Mark              (Application No.)         (Application Date)            Services
         ----              -----------------         ------------------            --------
<S>                        <C>                       <C>                    <C>
AT&T and Globe                 75/378,611             October 24, 1997      Telecommunication
Design/Member                                                               services, namely, the
AT&T Wireless                                                               mobile wireless
Services Network                                                            electronic
                                                                            transmission of voice,
                                                                            data, paging and
                                                                            facsimile services;
                                                                            electronic voice and
                                                                            data messaging
                                                                            services, namely, the
                                                                            recording, storage,
                                                                            and subsequent
                                                                            wireless transmission
                                                                            of voice and data
                                                                            messages from and to
                                                                            mobile wireless
                                                                            telephones

</TABLE>
<PAGE>

                                                                      Schedule C
                                                                      ----------

                          Initial Licensed Territory/1/
                          -----------------------------

         I.    From New Orleans MTA                     BTA Market Designator
               --------------------                     ---------------------

               Baton Rouge, LA                                   32

               Lafayette-New Iberia, LA                         236

               New Orleans, LA                                  320


         II.   From Houston, MTA
               -----------------

               Beaumont, TX                                      34


         III.  From St. Louis MTA
               ------------------

               Cape Giradeau-Sikeston, MO                        66

               Carbondale-Marion, IL                             67

               Columbia, MO                                      90

               Jefferson City, MO                               217

               Kirksville, MO                                   230

               Mount Vernon-Centralia, IL                       308

               Poplar Bluff, MO                                 355

               Quincy, IL-Hannibal, MO                          367

               Rolla, MO                                        383

               Portions of Springfield, MO BTA:                 428

                        Camden County, MO


- --------------------
/1/  The Company Territory is more particularly described in the FCC
applications filed in connection with the transfer of FCC PCS Licenses to
the Licensee.
<PAGE>

                        Cedar County, MO

                        Dallas County, MO

                        Douglas County, MO

                        Hickory County, MO

                        Laclede County, MO

                        Polk County, MO

                        Stone County, MO

                        Taney County, MO

                        Texas County, MO

                        Webster County, MO

                        Wright County, MO

                 West Plains, MO                                      470


                                      -2-
<PAGE>

        IV.    From Little Rock MTA                    BTA Market Designator
               --------------------                    ---------------------

               El Dorado, AR                                   125

               Fayetteville, AR                                140

               Fort Smith, AR                                  153

               Harrison, AR                                    182

               Hot Springs, AR                                 193

               Joesboro-Paragould, AR                          219

               Little Rock, AR                                 257

               Pine Bluff, AR                                  348

               Russellville, AR                                387


         V.    From Memphis-Jackson MTA
               ------------------------

               Blytheville, AR                                  49

               Dyersburg-Union City, TN                        120

               Jackson, TN                                     211

               Portions of Memphis, TN BTA:                    290

                        Crittendon County, AR

                        Cross County, AR

                        Lee County, AR

                        Phillips County, AR

                        St. Francis County, AR

                        Benton County, MS

                        Coahoma County, MS


                                      -3-
<PAGE>

                        DeSoto County, MS

                        Grenada County, MS

                        Lafayette County, MS

                        Marshall County, MS

                        Panola County, MS

                        Quitman County, MS

                        Tallahatchie County, MS

                        Tate County, MS

                        Tunica County, MS

                        Yalobusha County, MS

                        Fayette County, TN

                        Hardeman County, TN

                        Haywood County, TN

                        Lauderdale County, TN

                        Shelby County, TN

                        Tipton County, TN



                                      -4-
<PAGE>

         VI.   From Boston-Providence MTA                  BTA Market Designator
               --------------------------                  ---------------------

               Boston, MA                                           51

                        Rockingham County, NH

                        Strafford County, NH

               Hyannis, MA                                         201

               Manchester, NH                                      274

               Portions of Worcester County, MA/2/                 480

         VII.  From Louisville-Lexington-Evansville MTA
               ----------------------------------------

               Evansville, IN BTA                                  135

               Paducah-Murray-Mayfield, KY BTA                     339









- --------------------

/2/  The portions of Worchester County are those to the east of the line
described by Points A, B and C on the map included in Schedule 2.1 to the
Securities Purchase Agreement.


                                      -5-
<PAGE>

                                                                      Schedule D
                                                                      ----------

                             TDMA QUALITY STANDARDS
                             ----------------------


General Overview

This Schedule VII sets out the Network and Reporting Standards with which
Licensee shall comply pursuant to Section 8.2 of this Agreement.  These
Standards set out the network performance metrics and the process by which such
metrics will be established, measured and reported.  All metrics which represent
a defined standard of quality for acceptable network operations have, or will
have, specific targets which Licensee must comply with in accordance with the
following network standards.

I.   NETWORK STANDARDS

There are three categories of Network Standards:  network quality (the "Network
Quality Category"); system performance (the "System Performance Category"); and
audio quality (the "Audio Quality Category") (each hereafter referred to
generally as a "Category").  For each Category of Network Standards, specific
metrics have been identified to measure performance in each such Category.  The
detailed description of how to measure and interpret the metrics for each
Category is set out in the following AWS documents (each referred to generally
as a "Network Standards Document"):

 .  Network Quality Category: Document ES-4034, Revision 1.1, dated July 30,
   ------------------------
   1997 entitled "Network Quality Scorecard User Guide" (as referred to as the
   "Network Quality Standards Document"). This document is a collection of key
   network performance and traffic indicators (metrics) that are measured and
   reported on a regular basis. Included in this category, Licensee shall
   perform the ANS Consistency Test, as attached to this Schedule VII.

 .  System Performance Category: OSS draft document, Revision 0.7, dated June
   ---------------------------
   17, 1997 entitled "Key Metrics for System Performance Document" (as
   referred to as the "System Performance Standards Document"). This document
   identifies the network-wide key metrics for Ericsson and Lucent switching
   systems, as well as cell sites, which will provide a high level assessment
   of the system.

 .  Audio Quality Category: Document PP-4027E, Revision 1.1, dated May 30, 1996
   ----------------------
   entitled "Audio Quality Measurement (AQM)" (as referred to as the "Audio
   Quality Standards Document"). This document provides the basis for
   assessing the quality of RF transmission by describing the standards for
   performing audio quality measurements and the reporting of their results.
   AWS measures the metrics for the Audio Quality Category using the "Radio
   Quality Scorecard". The Radio Quality Scorecard is comprised of performance
   statistics derived from driving the PCS system using the Buzzard tool or a
   tool with similar measurement and reporting capability.
<PAGE>

These Network Standards Documents are collectively attached to this Schedule VII
which, subject to the terms and conditions of this Agreement including, without
limitation, this Schedule VII, is hereby incorporated into and forms a part of
this Agreement. IN the event of any inconsistency between any part of a Network
Standards Document and the provisions of this Schedule VII, the provisions of
this Schedule VII shall govern.

Notwithstanding anything else in this Agreement including, without limitation,
this Schedule VII, the parties acknowledge and confirm that the Network
Standards Documents represent the standards and metrics currently identified by
AWS as applicable to each Category.  Target values for key quality related
metrics are contained herein and Licensee agrees to comply with the specific
metric target values as specified in Schedule VII.

In addition, the parties acknowledge and confirm that the Network Standards
Documents are subject to revision and Licensee shall comply with subsequent
revisions to these Network Standards Documents, as well as with Call Center
Quality Standards which will constitute an additional Category once they are
formally implemented, in accordance with Section 8.2 of this Agreement.

Set out below is a brief description of each Category of Network Standard and
the currently established metrics for each such Category.

II.  TARGETS FOR NETWORK STANDARDS

Licensee shall meet the following targets for key metrics which represent
overall network and system quality.  These targets are subject to revision and
shall be implemented in accordance with Section 8.2 of this Agreement.

 .  % Established Calls: The percentage of call attempts to and from a mobile
   -------------------
   phone that result in a successful voice channel assignment. The target goal
   for this metric is 93%.

 .  % Dropped Calls: The percentage of established calls, as defined below,
   ---------------
   which terminate abnormally. The target goal for this metric is a drop call
   rate of 1.7% or less.

 .  % Handoff Failures: The target goal for this metric is a handoff failure
   ------------------
   rate of 1.5%.

 .  Failures per Erlang: The ratio of failed calls to carried traffic, where
   -------------------
   failed calls are measured utilizing switch counters for originating and
   terminating traffic, and carried traffic is measured in erlangs. The target
   goal for this metric is 1.68.

 .  Switch Outage Time: The amount of time (in minutes) in a month when
   ------------------
   subscribers are impacted by a cellular switch outage. Target for this
   metric is 10 minutes per switch per year, with all ten minutes occurring in
   the maintenance window between 12:00 am and 5:00 am.


                                      -2-
<PAGE>

 .  % Blocking Cell Routes: Percentage of time all cellular traffic channels
   ----------------------
   (voice paths in a trunk group) are unavailable within a given measurement
   interval.  Target for this metric is 5%.

 .  % Blocking Network Routes: Percentage of time all network traffic channels
   -------------------------
   are unavailable within the measurement interval. Target for this metric is
   5%.

 .  ANS Consistency Test: The percentage of successful. ANS feature deliveries,
   --------------------
   based on the following sequence: feature activation/deactivation (when
   applicable), test call, correct response, and call termination. The target
   goal for this metric is 96% for all ANS features. This target metric
   includes feature delivery failures due to call processing failures (i.e.
   call delivery, call origination, handoff failures, or dropped calls. These
   failures are estimated to be approximately 4%.)

III. REPORTING STANDARDS

Licensee agrees to comply with the reporting requirements as specified in the
Network Standards Documents and as specified below:

 .  Except as specified Audio Quality Network Standards, Licensee will submit
   the metric reports required pursuant to this Schedule VII (the "Results")
   to AWS no less than quarterly.

 .  With respect to Audio Quality Network Standards, Licensee shall only submit
   quarterly Results for markets with 10,000 or more subscribers; for markets
   with less than 10,000 subscribers, Licensee shall only submit Results on a
   semi-annual basis.

 .  Licensee shall submit all Results by the fifteenth day of the month
   following the end of the applicable reporting period.

 .  Licensee will report the Results to AWS on an aggregated national basis;
   the aggregated national Results will reflect the distribution of the
   metrics measured across Licensee's Territory. Licensee may also be required
   to provide a breakdown, by market, of any metric.


                                      -3-
<PAGE>

                               AT&T Brand Values
                 Marketing, Advertising & Promotion Guidelines


The Licensed Logo as set forth in Schedules A and E should not be placed on any
content relating to or containing any of the following, unless it has redeeming
social value:

          .  Illegal activities

          .  Content which demeans, ridicules or attacks an individual or group
             on the basis of age, color, national origin, race, religion, sex,
             secular orientation, or handicap

          .  Pornographic, obscene or sexually explicit suggestive material or
             content

          .  Material targeted to children, which is deemed to be obscene,
             vulgar or pornographic

          .  Tobacco and/or alcoholic beverages

          .  Firearms/Ammunition/Fireworks

          .  Gambling

          .  Contraceptives

          .  Violence

          .  Vulgar/obscene language

          .  Solicitation of funds
<PAGE>

                                                                      Schedule E
                                                                      ----------


                    GUIDELINES FOR USE OF THE LICENSED LOGO
                              AND LICENSED PHRASE
                              -------------------


AT&T welcomes Members of the AT&T Wireless Services Network (Member) to use the
enclosed icon ("icon") and the expression "Member, AT&T Wireless Services
Network" (the "Expression") for their advertising and promotion needs.

There are only a few requirements to follow:

          .    The icon or the expression may never be used in connection with
               services or products that are not provided or approved by AT&T in
               accordance with the Network Membership License Agreement.

          .    Only authorized Members of the AT&T Wireless Services Network
               marketing AT&T services under a written Network Membership
               License Agreement may use the icon and the expression.

          .    The authorized member's identity or logo must be at least 3 times
               the overall size of the icon; provided, however, for stationery
               and business cards the authorized members identity or logo must
               be at least 2 times the overall size of the icon.

          .    Use of the icon or expression must never give the impression that
               the member is a part of AT&T.

          .    There must be a reference in the authorized member's advertising
               body copy, to the extent that it refers to the nature, character
               or quality of AT&T's service or network, that states the value,
               quality, and reliability of AT&T's services and network.

          .    The icon must be used only as illustrated and specified in this
               document. Do not alter the design in any way.

          .    The expression may not appear in type size or style that is
               larger or more prominent than the largest or most prominent type
               size or style of surrounding or accompanying text or body copy.

          .    Any misuse of the icon or the expression or misrepresentation of
               the AT&T Member relationship may result in termination of
               permission to use the icon and the expressions cancellation of
               agreements between Member and AT&T, and/or additional legal
               action.

For questions regarding the use of these materials please contact the AT&T
Corporate Identity Office, (973) 564-4942.

Permission to use the icon or the expression may not be granted to any
telecommunications aggregator or reseller.

For additional copies of this document call AT&T Corporate Identity at (973)
564-4942 or e-mail [email protected].
<PAGE>

The "icon" on disk

Always reproduce the icon so that it
appears with a solid white or black field.
See Illustrations.

There are two versions of the icon on the
disk.  One is for larger size reproduction
(i.e., advertisements) and one is for smaller
sizes (i.e., stationery).  It is important to use
the correct one because failing to do so will result in poor legibility.

Versions AW, AB, AWC and ABC are for larger than P in height.  Versions BW, BB,
BWC and BBC are for 1" and smaller.

Legal Information:

1. Permission to use the icon and expression will not be granted to any
   telecommunications aggregator or reseller.

2. Permission to use the icon and expression must be contained in a written
   Network Membership License Agreement between AT&T and the entity using the
   icon and expression.

3. The user of the icon and expression must abide by all terms and conditions
   outlined in this document.

4. The icon or expression may never be used in connection with products or
   services not provided by the representative through or approved by AT&T.

     With respect to a specific AT&T service, a person or entity is a Member of
the AT&T Wireless Network for that specific service under these guidelines if
(1) the person or entity has executed a written contract with AT&T that
expressly grants that status for that service; and (2) the contract is in effect
and grants the right to use, in accordance with these guidelines and such other
limitations as are contained in the contract, AT&T's logo, signature and
trademarks as expressed in the icon and expression in connection with the
marketing, sale, or provision of that specific product or service. The written
contract may not alter these guidelines or grant more rights to use AT&T's logo,
signature and trademarks than are expressly set forth in these guidelines.
Furthermore, the authorization to use the AT&T logo, signature and trademarks
under these guidelines for a specific service does not allow use of the AT&T
logo, signature and trademarks for any other product or service.

     Subscription to an AT&T tariffed service does not make the subscriber a
Member of the AT&T Wireless Services Network.


                                      -2-
<PAGE>

                                                                      Schedule F
                                                                      ----------

                                PERMITTED EVENTS
                                ----------------


1.   Local community events, such as school athletic and cultural events or
     other athletic events (e.g. corporate golf or tennis outings).

2.   Local events held in conjunction with regionally or nationally recognized
     organizations, such as Rotary International, Exchange Club, Heart
     Association, Red Cross, Make-A-Wish Foundation, etc.

3.   Events in support of major charitable institutions such as Children's
     Hospitals, Ronald McDonald Foundation, march of Dimes and so on.

4.   Local trade shows, Chamber of Commerce events, educational business
     seminars.

5.   Licensee or authorized dealer store grand openings and kiosk sampling.

<PAGE>

                                                                  EXHIBIT 10.4.2

                                AMENDMENT NO. 1

                                      TO

                            AT&T WIRELESS SERVICES
                     NETWORK MEMBERSHIP LICENSE AGREEMENT


          AMENDMENT NO. 1 TO NETWORK MEMBERSHIP LICENSE AGREEMENT ("Amendment
No.1") dated as of March 30, 1999, by and between AT&T Corp., a New York
corporation, with offices located at 32 Avenue of the Americas, New York, New
York 10013, for itself and its affiliated companies, including AT&T Wireless
Services, Inc. (collectively "Licensor"), and TeleCorp PCS, Inc., a Delaware
corporation, with offices located at 1010 No. Glebe Road, Arlington, Virginia
22201 ("Licensee").  Certain capitalized terms used herein and not otherwise
defined have the meaning assigned to such term in the License Agreement referred
to below.

          WHEREAS, Licensor and Licensee are parties to that certain Network
Membership License Agreement, dated as of July 17, 1998 (as amended, and
including the terms and conditions of the letter from Mary Hawkins-Key to Andrew
Price, dated October 20, 1998, the"License Agreement"), pursuant to which
Licensor agreed to license and allow Licensee to use the Licensed Marks in the
Licensed Territory on the terms set forth in the License Agreement;

          WHEREAS, the Company has entered into an agreement with Wireless 2000,
Inc., dated as of December 2, 1998 (the "Wireless 2000 Acquisition Agreement"),
pursuant to which, among other things, Licensee will acquire 15MHz of C Block
PCS Licenses in the Alexandria, LA BTA, the Lake Charles, LA BTA and the Monroe,
LA BTA;

          WHEREAS, the Company has entered into an agreement with Mercury PCS
II, LLC, dated as of May 15, 1998 (the "Mercury Acquisition Agreement"),
pursuant to which, among other things, Licensee will acquire 10 MHz of F Block
PCS Licenses for the Baton Rouge, LA BTA, the Lafayette-New Iberia, LA BTA, the
Houma-Thibodeaux, LA BTA and the Hammond, LA BTA;

          WHEREAS, the parties desire that the term "Licensed Territory" as used
in the License Agreement be amended to include (i) effective upon the closing of
the transactions contemplated by the Wireless 2000 Acquisition Agreement (the
"Wireless 2000 Closing"), the

                                      -1-
<PAGE>

Alexandria, LA BTA, the Lake Charles, LA BTA and each of Ashley County, LA,
Caldwell County, LA and Catahoula County, LA within the Monroe, LA BTA and (ii)
effective upon the closing of the transactions contemplated by the Mercury
Acquisition Agreement (the "Supplemental Closing"), the Hammond, LA BTA and the
Houma-Thibodeaux, LA BTA;

          WHEREAS, Licensee has agreed to acquire from an Affiliate of Licensor
pursuant to an asset purchase agreement (the "Asset Purchase Agreement"), a
portion of the Block A PCS License for the Puerto Rico - U.S. Virgin Islands MTA
(the "Puerto Rico MTA") owned by such Affiliate of Licensor covering such
market, on the terms set forth therein; and

          WHEREAS, upon consummation of Licensee's purchase of the Puerto Rico
MTA in accordance with the Asset Purchase Agreement, Licensee and Licensor
desire, that the term "Licensed Territory" as used in the License Agreement be
amended to include the Puerto Rico MTA and that certain other changes to the
definition of the term "Licensed Territory" be effected, on the terms and
conditions set forth in this Amendment No. 1.

          NOW THEREFORE, in consideration of the mutual promises and covenants
herein contained and for other good and valuable consideration the receipt and
sufficiency of which is hereby acknowledged, the parties hereby agree as
follows:

1.        Amendments.  (a) Schedule C to the License Agreement is hereby
          ----------
          amended to:

          (i)    include in the portion of Licensed Territory within the New
          Orleans MTA the Alexandria, LA BTA  -- Market Designator B009, the
          Lake Charles, LA BTA -- Market Designator B238 and each of Ashley
          County, LA, Caldwell County, LA and Catahoula County, LA within the
          Monroe, LA BTA -- Market Designator B 304;

          (ii)   delete from the Licensed Territory within the Boston-Providence
          MTA Strafford County, New Hampshire;

          (iii)  include a new Section VIII to said Schedule C as follows:

          "The entire Puerto Rico - U.S. Virgin Islands MTA"; and

          (iv)   include in the portion of the Licensed Territory within the New
Orleans MTA the Houma-Thibodeaux, LA BTA-- Market Designator B195 and the
Hammond, LA BTA -- Market Designator B180; and

                                      -2-
<PAGE>

          (b)  (i)    Section 1 to the License Agreement is hereby amended to
add the following defined terms thereto:

          "FTC Rule":  Disclosure Requirements and Prohibitions Concerning
Franchising and Business Opportunity Ventures, 16 C.F.R.(S) 436 et. seq.

          "Minutes":  As defined in Section 20.2(i).

          "Roaming Agreement":  As defined in Section 20.2(iii).

          "Telephones":  As defined in Section 20.2(i);

               (ii)   Section 11.1(a) of the License Agreement is hereby amended
by deleting the fifth sentence thereof in its entirety and inserting the
following sentence in replacement therefor:

          "In the event either party fails to give a Renewal Notice or, in
response to a Renewal Request, gives a Non-Renewal Notice, such party shall be
presumed to have:  (a) good cause of non-renewal either due to an action or
failure to act by the other party or due to circumstances related to the party
who did not provide the notice, and (b) shown that such action or failure to act
by the other party may affect, or has affected, the interests of such party in
an adverse or substantial manner in the development of the market, distribution
of merchandise, or rendering of services.";

               (iii)  Section 17 of the License Agreement is hereby amended by
deleting the first sentence thereof in its entirety and inserting the following
sentence in replacement therefor:

               "The construction, performance, and interpretation of this
Agreement shall be governed by the U.S. Trademark Act, 15 U.S.C. 1051 et seq.,
and the internal, substantive laws of the State of New York, without regard to
its principles of conflicts of law; provided, that (i) if the foregoing laws
should be modified during the term hereof in such a way as to adversely affect
the original intent of the parties, the parties will negotiate in good faith to
amend this Agreement to effectuate their original intent as closely as possible,
or (ii) if Puerto Rican law is required to govern a specific aspect of the
parties' relationship related to Licensee's operations in Puerto Rico, Puerto
Rican law shall govern only such claims or actions relating to Licensee's
operations in Puerto Rico, and, then, only to the extent that Puerto Rico law is
required to apply."; and

                                      -3-
<PAGE>

               (iv)   The License Agreement is hereby amended by adding the
following Sections 20 and 21 at the end thereof:

     20.  "Recognition.  Licensee recognizes the following:
           -----------

          20.1 The parties do not intend for the Puerto Rico Dealers' Contract
               Law to apply to  the relationship between Licensee and Licensor
               and, in that regard, Licensee recognizes that (i) Licensor and
               Licensor's marks, including, but not limited to the AT&T Service
               Marks and the Licensed Marks, are well known throughout the
               United States and Puerto Rico; (ii) Licensor engages in extensive
               advertising throughout the United States and Puerto Rico; and
               (iii) Licensee has entered into this relationship with Licensor
               in order to enjoy the market developed by Licensor's name and
               reputation, and the goodwill of the AT&T Service Marks and the
               Licensed Marks.

          20.2 The parties do not intend to create a franchise or business
               opportunity relationship between Licensee and Licensor and, in
               that regard, Licensee recognizes that:

                    (i)    in providing telecommunications service under the
                    terms of this Agreement, Licensee may purchase on its own
                    behalf for resale wireless telephones ("Telephones") and
                    minutes for mobile wireless radiotelephonic service
                    ("Minutes") from Licensor or Licensor's Affiliates, and
                    Licensee (a) is not required to maintain an inventory of any
                    item sold by Licensor, (b) is not required and will not
                    engage in collections activities on behalf of Licensor, and
                    (c) is not authorized and will not execute any contracts
                    (including sales contracts) on behalf of Licensor;

                    (ii)   Licensor will not provide Licensee with a Uniform
                    Franchise Offering Circular which is required by the FTC
                    Rule and several state franchise investment laws to be
                    provided with the offer and/or sales of a franchise, as the
                    parties acknowledge and agree that the FTC Rule and state
                    franchise investment laws do not, by their terms and the
                    definitions contained therein, apply;

                    (iii)  the Telephones (if any) and Minutes purchased under
                    the terms of the Intercarrier Roamer Service Agreement
                    between Licensor and Licensee, dated as of July 17, 1998
                    ("Roaming

                                      -4-
<PAGE>

                    Agreement"), are being sold by Licensor to Licensee at bona
                    fide wholesale prices;

                    (iv)   Licensee is not required, by this Agreement or the
                    Roaming Agreement between Licensor and Licensee, or as a
                    matter of practical necessity, to purchase more than a
                    reasonable quantity of Telephones and Minutes for resale;

                    (v)    Licensor did not make any representation to Licensee
                    that (a) Licensee or its equity holders will earn, or are
                    likely to earn, a gross or net profit in excess of the
                    initial required investment paid by Licensee for the
                    wireless service company, (b) Licensor or any of its
                    Affiliates has knowledge of the wireless market that
                    Licensee will operate in or that the market demand will
                    enable Licensee to earn a profit, (c) there is a guaranteed
                    market for Licensee and/or wireless service, or (d) Licensor
                    or any of its Affiliates will provide Licensor with
                    locations or assist Licensee in finding locations for use or
                    operation of the wireless service company; and

                    (vi)   Licensee was informed at least seven days prior to
                    the execution of this Agreement that Licensor's principal
                    business address in New York is 32 Avenue of the Americas,
                    New York, New York 10013 and Licensor's agent for service of
                    process in New York is c/o AT&T Corp., 32 Avenue of the
                    Americas, New York, New York 10013.

          20.3 Licensee has had ample time and opportunity to consult with
               attorneys and advisors of its own choosing and has consulted with
               them about the arrangement with Licensor and the above issues.

     21.  Puerto Rico Dealers' Contract Law Definitions.  If, contrary to the
          ---------------------------------------------
          intent of the parties, the Puerto Rico Dealers' Contract Law is
          interpreted by a court to apply to the relationship between Licensor
          and Licensee, the parties acknowledge and agree that the following
          shall constitute "just cause" under the Puerto Rico Dealers' Contract
          Law:  (i) if either of the parties fails to renew this Agreement as
          provided in Section 11.1; and (ii) termination of this Agreement for
          any of the reasons specified in Section 11.2."

2.        Effectiveness of Amendment No. 1.  Clause (i) of Section 1(a) shall
          --------------------------------
     become effective only upon the date of the Wireless 2000 Closing, clause
     (ii) of Section 1(a)

                                      -5-
<PAGE>

     shall become effective immediately upon the execution hereof by the
     parties, clause (iv) of Section 1(a) shall become effective only upon the
     date of the Supplemental Closing, and clause (iii) of Section 1(a) and
     clauses (i), (ii), (iii) and (iv) of Section 1(b) shall become effective
     only upon the consummation of the Licensee's purchase of the Puerto Rico
     MTA in accordance with the Asset Purchase Agreement.

3.        Severability of Provisions.  Any provision of this Amendment No. 1
          --------------------------
     which is prohibited or unenforceable in any jurisdiction shall, as to such
     jurisdiction, be ineffective to the extent of such prohibition or
     unenforceability without invalidating the remaining provisions hereof or
     affecting the validity or remaining provisions hereof or affecting the
     validity or enforceability of such provision in any other jurisdiction.

4.        Agreement to Remain in Full Force and Effect.  This Amendment No. 1
          --------------------------------------------
     shall be deemed to be an amendment to the License Agreement. All references
     to the License Agreement in any other agreements or documents shall on and
     after the date hereof be deemed to refer to the License Agreement as
     amended hereby. Except as amended hereby, the License Agreement shall
     remain in full force and effect and is hereby ratified, adopted and
     confirmed in all respects.

5.        Heading.  The headings in this Amendment No. 1 are inserted for
          -------
     convenience and identification only and are not intended to describe,
     interpret, define or limit the scope, extent or intent of this Amendment
     No. 1 or any provision thereof.

6.        Counterparts.  This Amendment No. 1 may be executed in counterparts,
          ------------
     each of which shall be deemed an original, but all of which together shall
     constitute one and the same instrument.

7.        Applicable Law; Jurisdiction.  The construction, performance and
          ----------------------------
     interpretation of this Agreement shall be governed by the U.S. Trademark
     Act, 15 U.S.C. 1051 et seq., and the internal, substantive laws of the
     State of New York, without regard to its principles of conflicts of law;
     provided that if the foregoing laws should be modified during the term
     hereof in such a way as to adversely affect the original intent of the
     parties, the parties will negotiate in good faith to amend this Amendment
     No. 1 to effectuate their original intent as closely as possible.


                           [signature page follows]

                                      -6-
<PAGE>

Executed as of the date first written above.


AT&T CORP.                               TELECORP PCS, INC.

By__________________________________     By___________________________________

Its_________________________________     Its__________________________________

                                      -7-

<PAGE>

                                                                  EXHIBIT 10.5.1

                                                                  EXECUTION COPY

================================================================================


                             MANAGEMENT AGREEMENT

                                    between

                           TELECORP MANAGEMENT CORP.

                                      and

                              TELECORP PCS, INC.

                           Dated as of July 17, 1998


================================================================================
<PAGE>

                               TABLE OF CONTENTS
                               -----------------

<TABLE>
<CAPTION>
                                                                                                                   Page
<S>                                                                                                                <C>
SECTION 1.  ENGAGEMENT...........................................................................................    2

SECTION 2.  MANAGEMENT STANDARDS.................................................................................    2

SECTION 3.  SERVICES TO BE PROVIDED..............................................................................    2

         (a)      Scope of Services..............................................................................    2

         (b)      Accounts.......................................................................................    3

         (c)      Senior Executives of Manager...................................................................    4

         (d)      Restrictions on Manager's Authority............................................................    4

SECTION 4.  COMPENSATION.........................................................................................    6

         (a)      Reimbursement..................................................................................    6

         (b)      Management Fees................................................................................    6

         (c)      Disputes, etc..................................................................................    6

         (d)      Directors and Officers Liability Insurance.....................................................    7

         (e)      Benefits.......................................................................................    7

         (f)      Relocation Expenses............................................................................    7

SECTION 5.  TERM AND TERMINATION.................................................................................    7

         (a)      Term...........................................................................................    7

         (b)      Termination....................................................................................    7

         (c)      Benefits Payable Upon Termination..............................................................    8

         (d)      Remedies.......................................................................................    9

         (e)      Continuing Obligations.........................................................................    9

         (f)      Transition Arrangements........................................................................    9

         (g)      Return of Information..........................................................................   11

SECTION 6.  NONCOMPETITION AND CONFIDENTIALITY...................................................................   11

         (a)      Noncompetition.................................................................................   11

         (b)      Confidentiality................................................................................   11

         (c)      Company Property...............................................................................   12

         (d)      Non-Solicitation of Employees..................................................................   12

         (e)      Injunctive Relief with Respect to Covenants....................................................   12

SECTION 7.  VESTING AND REPURCHASE OF RESTRICTED SHARES, ETC.....................................................   12

         (a)      General........................................................................................   12
</TABLE>

                                      -i-
<PAGE>

                               TABLE OF CONTENTS
                                  (continued)

<TABLE>
<CAPTION>
                                                                                                                   Page
<S>                                                                                                                <C>
         (b)      Repurchase of Shares..........................................................................    14

         (c)      Closing of Repurchase; Assignment of Repurchase Right.........................................    15

         (d)      Escrow of Shares..............................................................................    15

         (e)      Legends.......................................................................................    16

SECTION 8.  LIMITATIONS OF LIABILITY............................................................................    16

         (a)      Force Majeure.................................................................................    16

         (b)      Exculpation of Manager........................................................................    16

         (c)      No Consequential or Special Damages...........................................................    16

         (d)      Vento and Sullivan............................................................................    17

SECTION 9.  BOOKS AND RECORDS...................................................................................    17

SECTION 10.  DISPUTE RESOLUTION.................................................................................    17

         (a)      Dispute Resolution............................................................................    17

         (b)      Mediation.....................................................................................    17

         (c)      Arbitration...................................................................................    18

         (d)      Confidentiality...............................................................................    18

         (e)      Fees and Expenses.............................................................................    18

SECTION 11.  INSPECTION RIGHTS; DELIVERY OF INFORMATION.........................................................    19

         (a)      Company's Right to Inspect....................................................................    19

         (b)      Notice of Certain Events......................................................................    19

         (c)      Other Information.............................................................................    19

SECTION 12.  REPRESENTATIONS AND WARRANTIES.....................................................................    19

         (a)      Organization and Standing of Parties..........................................................    19

         (b)      Execution, Delivery, Performance and Binding Effect...........................................    20

         (c)      Consents......................................................................................    20

         (d)      Litigation; Claims............................................................................    20

         (e)      Court Orders, Decrees, Judgments, Etc.........................................................    20

SECTION 13.  INDEMNIFICATION; EXPENSES..........................................................................    20

         (a)      Indemnification...............................................................................    20

         (b)      Advancement of Expenses.......................................................................    21

SECTION 14.  MISCELLANEOUS......................................................................................    21
</TABLE>

                                     -ii-
<PAGE>

                               TABLE OF CONTENTS
                                  (continued)

<TABLE>
<CAPTION>
                                                                                                                  Page
<S>                                                                                                               <C>
         (a)      Counterparts..................................................................................    21

         (b)      Construction..................................................................................    21

         (c)      Benefit; Assignment...........................................................................    21

         (d)      Complete Agreement............................................................................    21

         (e)      Amendment.....................................................................................    22

         (f)      Governing Law.................................................................................    22

         (g)      Severability..................................................................................    22

         (h)      Further Assurances............................................................................    22

         (i)      Waiver........................................................................................    22

         (j)      Notices.......................................................................................    22

SCHEDULE I......................................................................................................   I-1

SCHEDULE II.....................................................................................................  II-1
</TABLE>

                                     -iii-
<PAGE>

                             MANAGEMENT AGREEMENT
                             --------------------

     This Management Agreement (the "Agreement") is entered into as of July 17,
1998 (the "Effective Date") by and between TELECORP MANAGEMENT CORP., a Delaware
corporation ("Manager"), and TELECORP PCS, INC., a Delaware corporation (the
"Company").  Capitalized terms used but not defined in this Agreement shall have
the meanings given to such terms in the Stockholders Agreement of the Company,
dated as of the date hereof (the "Stockholders Agreement").

                                  WITNESSETH:

     WHEREAS, the operation of the Business, including, without limitation, the
determination of policy, the preparation and filing of any and all applications
and other filings with the FCC, the hiring, supervision and dismissal of
personnel, day-to-day system operations, and the payment of financial
obligations and operating expenses, shall be controlled by the Company, and
Manager shall assist the Company in connection therewith and any action
undertaken by Manager shall be under the Company's continuing oversight, review,
control and approval, and the Company shall retain unfettered control of, access
to, and use of the Business, including its facilities and equipment and shall be
entitled to receive all profits from the operation of the Business;

     WHEREAS, Manager is willing to provide management services for the Company
and its Subsidiaries on the terms and subject to the conditions contained in
this Agreement;

     WHEREAS, Gerald Vento ("Vento") and Thomas Sullivan ("Sullivan") are the
owners of all of the ownership interests in Manager and are each the record and
beneficial owner of the shares of the Common Stock and Preferred Stock described
on Schedule V to the Securities Purchase Agreement, dated January 23, 1998 (the
shares of Class A Voting Common Stock and Series E Preferred Stock listed on
such Schedule are hereafter referred to collectively as the "Shares");

     WHEREAS, in order to induce the Purchasers referred to in such Securities
Purchase Agreement to purchase the securities issued by the Company thereunder,
and to induce the Company to enter into this Agreement with Manager, Sullivan
and Vento have agreed to grant to the Company the repurchase rights with respect
to the Shares set forth in this Agreement; and

     WHEREAS, the parties desire to execute this Agreement to specify the terms
upon which Manager will perform services to the Company hereunder and to
evidence the Company's acceptance of the grant by Sullivan and Vento of such
repurchase rights.

     NOW, THEREFORE, for and in consideration of the premises, the covenants and
agreements set forth herein, and other good and valuable consideration, the
receipt and sufficiency of which are acknowledged by the execution and delivery
hereof, the parties agree as follows:
<PAGE>

     Section 1.  Engagement.  The Company hereby engages Manager to oversee,
                 ----------
manage and supervise the Company and the development and operation of the
Business, and Manager hereby accepts such engagement, subject to and upon the
terms and conditions hereof.

     Section 2.  Management Standards.  Manager shall discharge its duties
                 --------------------
hereunder in compliance with the Stockholders Agreement, the Network Membership
License Agreement, the Resale Agreement and the Roaming Agreement (collectively
the "Operating Agreements") and all applicable Law. In performing its
obligations hereunder, Manager shall act in a manner that it reasonably believes
to be in or not opposed to the best interests of the Company consistent with the
standards set forth herein. Nothing in this Agreement shall be construed as
constituting Manager an agent of the Company beyond the extent expressly
provided in, and as limited by, this Agreement.

     Section 3.  Services to be Provided.
                 -----------------------
     (a)  Scope of Services.  Subject to the Company's oversight, review and
          -----------------
ultimate control and approval and the limitations of Section 3(d) below, Manager
shall be responsible for the design, construction and operation of the Company
and the Business in accordance with the Operating Agreements, which shall be
carried out by the Company's employees under the supervision and control of
Manager's senior management. To this end Manager shall provide generally, on the
terms and subject to the conditions set forth herein and in a manner consistent
with the standards set forth herein and in the Operating Agreements, supervisory
services with respect to (I) all administrative, accounting, billing, credit,
collection, insurance, purchasing, clerical and such other general services as
may be necessary to the administration of the Business, (II) operational,
engineering, maintenance, construction, repair and such other technical services
as may be necessary to the construction and operation of the Business, and (III)
marketing, sales, advertising and such other promotional services as may be
necessary to the marketing of the Business. The services for which Manager shall
be responsible, subject in each case to the Operating Agreements, the Company's
oversight, review and ultimate control and approval and to the limitations of
Section 3(d) below, shall include but shall not be limited to the following:

          (i)  the marketing of Company Communications Services to be offered
     and provided by the Company;

          (ii) the management, tax compliance, accounting and financial
     reporting for the Company including, but not limited to, the preparation
     and presentation of reports and reviews of the business, financial results
     and condition, regulatory status, competitive position and strategic
     prospects of the Company as requested by the Board of Directors;

         (iii) the regulatory processing for the Company, including without
     limitation the preparation and filing of all appropriate regulatory
     filings, certificates, tariffs and reports that are required by, and
     participation in any hearings or other proceedings before, local, state and
     federal governmental regulatory bodies;

                                      -2-
<PAGE>

          (iv) the engineering, design, planning, construction and installation,
     maintenance and repair (both emergency and routine) and operation of, and
     equipment purchases for, the Company;

          (v)  assisting the Company in the development and preparation of
     budgets, including, without limitation, preparing and presenting, not later
     than 90 days before the beginning of each fiscal year, a proposed draft of
     an annual operating budget for the Company's review, evaluation and
     approval setting forth in reasonable detail the anticipated capital
     expenditures and other projected costs and expenses of constructing and
     operating the Business during the period covered by the budget, as well as
     projected revenues for that period, and generally describing all contracts
     and commitments which Manager expects to enter into on behalf of the
     Company during the period covered thereby;

          (vi) services relating to sales of the products and services offered
     by the Company, including without limitation processing orders for service,
     customer support, billing for services provided by the Company and
     collection of receivables for the Company;

        (vii)  management information services for the Company;

       (viii)  monitoring and controlling the Business and its PCS and Cellular
     Systems;

         (ix)  negotiating contracts, issuing purchase orders and otherwise
     entering into agreements on behalf of the Company for the purchase, lease,
     license or use of such properties, services and rights as may be necessary
     or desirable in the judgment of Manager for the operation of the Company;

          (x)  supervising, recruiting and training all necessary personnel to
     be employed by the Company, and determining salaries, wages and benefits
     for the Company's employees;

         (xi)  administering the Company's employee benefit programs and the
     Company's programs for compliance with applicable laws governing the
     administration and operation of such plans and programs;

        (xii)  administering the Company's risk management programs, including
     negotiating the terms of property and casualty insurance and preparing a
     comprehensive disaster recovery program; and

       (xiii)  in furtherance of the foregoing, making or committing to make
     expenditures (including capital expenditures) on behalf of the Company.

     (b)  Accounts.  Subject to the foregoing, the Company shall be
          --------
responsible for payment of all costs and expenses necessary to fund the ongoing
business and operations of the Business and for the provision of all services of
Manager hereunder, which shall include, but not be limited to, expenses arising
under Article 3, payments to independent contractors, payments to vendors and
suppliers of the Business, and interest payments to creditors who have financed
the

                                      -3-
<PAGE>

construction or operation of the Business. To the extent provided herein,
Manager shall make such payments on the Company's behalf from one or more
accounts maintained in the name of the Company at one or more banks acceptable
to the Board of Directors, into which all Company revenues shall be deposited
(the "Accounts"). All funds of the Company shall be promptly deposited in such
bank accounts. All disbursements made by the Company as permitted under this
Agreement shall be made by checks drawn on the Accounts, and all funds on
deposit in the Accounts shall at all times be the property of the Company.
Manager will have the right and authority to make deposits to and disbursements
and withdrawals from the Accounts as required in connection with the performance
of its services hereunder, provided that all signatories on the Accounts shall
he subject to the approval of the Board of Directors.

     (c)  Senior Executives of Manager.  During the term of this Agreement,
          ----------------------------
Manager shall cause the services of Vento and Sullivan to be provided to the
Company in connection with Manager's performance of its obligations hereunder.
Such individuals shall devote their entire business time and attention to the
services required to be provided by Manager pursuant to this Agreement. Except
for certain employee benefits provided to officers of the Company, they shall
receive all compensation and other benefits for such services directly from
Manager. In addition, Vento shall serve as Chief Executive Officer of the
Company and Sullivan shall serve as Executive Vice President of the Company. In
the event that either of such individuals shall cease for any reason to be
employed by Manager, Manager shall immediately notify the Company. Subject to
the Company's rights under Section 5(b)(ii)(C), any individual hired by Manager
to replace either of such individuals shall be acceptable to the Board of
Directors (excluding Vento and Sullivan) in its sole discretion. Nothing
contained herein shall preclude (i) Vento or Sullivan from devoting reasonable
periods of time to the management (including serving on the board of directors)
of the businesses in which THC of Tampa, Inc., THC of Orlando, Inc., THC of
Melbourne, Inc., THC of Houston, Inc., TeleCorp Management Co., Inc., TeleCorp
WCS, Inc., TeleCorp LMDS, Inc. and Entel Technologies, Inc. are currently
engaged; (ii) Sullivan from serving on the board of directors of Sullivan & Son
Contracting; (iii) Vento or Sullivan serving on a board of directors of a
charitable organization; or (iv) Vento or Sullivan serving on other boards of
directors or advisory groups (in each case, with the consent of the Board of
Directors excluding Vento and Sullivan), in each such case, so long as such
activities do not interfere with the performance of Vento's or Sullivan's duties
hereunder.

     (d)  Restrictions on Manager's Authority.  Any provision to the contrary
          -----------------------------------
in this Agreement notwithstanding, unless such action is within (or on terms
more favorable to the Company than) parameters set forth in a budget or business
plan approved by the Board of Directors, Manager shall not do, or cause or
permit to be done, any of the following for or on behalf of the Company without
the prior written consent of the Board of Directors (excluding Vento and
Sullivan):

          (i)  settle any claim or litigation by or against the Company if the
     settlement involves a payment of $100,000 or more, or any regulatory
     proceedings involving the Company, unless such action is consistent with
     the Company's regulatory strategy as set forth in a budget approved by the
     Board of Directors;

          (ii) lend money or guarantee debts of others on behalf of the Company,
     or assign, transfer, or pledge any debts due the Company, or release or
     discharge any debt

                                      -4-
<PAGE>

     due or compromise any claim of the Company, other than trade credit and
     advances to employees in the ordinary course of business;

         (iii) invest in or otherwise acquire any debt or equity securities of
     any other Person, enter into any binding agreement for the acquisition of
     any interest in any business entity or other Person (whether by purchase of
     assets, purchase of stock or other securities, merger, loan or otherwise),
     or enter into any joint venture or partnership with any other Person;

          (iv) take any tax reporting position or make any related election on
     behalf of the Company which is inconsistent with the directions given by
     the Board of Directors;

          (v)  formally assert a strategic position with respect to a material
     matter before the Federal Communications Commission or any Governmental
     Authority on behalf of the Company with respect to any such matter;

          (vi) knowingly take or fail to take any action that violates (A) any
     Law relating to the Business, (B) any agreement, arrangement or
     understanding to which the Company is a party, including an Operating
     Agreement, (C) any License or other governmental authorization granted to
     the Company in connection with its ownership and operation of the Business,
     or (D) any judicial or administrative order or decree to which the Company
     is subject, in each case unless such violation would not be reasonably
     expected (so far as can be foreseen at the time) to have a material adverse
     effect on the Company or the Business;

         (vii) sell, assign, transfer, or otherwise dispose of, or hypothecate
     or grant a Lien on any assets belonging to the Company (other than the
     disposal of assets or equipment in the ordinary course of business);

       (viii)  take any action amending or agreeing to amend any License granted
     to the Company in connection with its ownership and operation of the
     Business;

         (ix)  borrow money on behalf of the Company or negotiate or enter into
     other forms of financing for the Business, including any capital lease;

          (x)  commingle any funds of the Company with funds of any other entity
     or Person;

          (xi) hire or fire the independent certified public accountants of the
     Company;

         (xii) pay to a ny employee or agent of, or consultant or advisor to,
     the Company, compensation in any form in excess of $100,000 in any fiscal
     year,

        (xiii) establish any reserves; or

         (xiv) enter into any contract, agreement or other commitment or issue
     any purchase order, which contract or other agreement or purchase order (i)
     is not in the ordinary course of business, (ii) obligates the Company to
     make payments of $100,000 or

                                      -5-
<PAGE>

     more or (iii) will create a material variance (greater than 15%) relative
     to (x) in the case of a capital expenditure, the total budget for capital
     expenditures contained in any budget approved by the Board of Directors and
     (y) in the case of an operating expense, the total operating expense budget
     contained in any budget approved by the Board of Directors, in each case
     for the year-to-date period in which the expenditure is made or incurred
     and taking into account all previous expenditures and commitments in such
     year-to-date period, provided, that the approval of the Board of Directors
     shall not be required for any contract, purchase order or agreement the
     material terms of which are within (or on terms more favorable to the
     Company than) the parameters set forth in any budget approved by the Board
     of Directors; or terminate or amend in any material respect any contract,
     agreement or other commitment or purchase order, in each case if the
     execution and delivery or issuance thereof requires approval pursuant to
     this Section 3(d).

     Section 4.  Compensation.
                 ------------

     (a)  Reimbursement.  The Company shall reimburse Manager for all
          -------------
out-of-pocket expenses ("Out-of-Pocket Expenses") reasonably incurred by Manager
for goods and services provided by third parties to, for or on behalf of the
Company (including those out-of-pocket expenses incurred by Messrs. Vento and
Sullivan in traveling to and from and visiting the Business in connection with
providing services under this Agreement). Manager shall provide the Company with
a statement setting forth in reasonable detail (and with copies of invoices or
other supporting documentation) the Out-of-Pocket Expenses claimed and the
Company shall pay to Manager each such amount within thirty (30) days of receipt
of the statement. Notwithstanding anything to the contrary contained in this
Agreement, (i) no portion of the salaries of Messrs. Vento or Sullivan or the
general overhead expenses of Manager shall be subject to reimbursement as
Out-of-Pocket Expenses and (ii) in no event will Manager be responsible for the
payment from its own funds of any expenses, obligations or liabilities of the
Company.

     (b)  Management Fees.  In consideration of Manager's performance of its
          ---------------
responsibilities with respect to the Business, the Company shall pay Manager,
commencing on the date hereof, a management fee per annum equal to $550,000,
payable monthly in arrears on the last day of each calendar month. Upon the
first anniversary hereof, and annually thereafter, the Compensation Committee of
the Board of Directors shall review the management fee in light of the
performance of Manager and the Company, and may, in its discretion, increase
(but not decrease) the management fee by an amount it determines to be
appropriate. Manager's annual management fee payable hereunder, as it may be
increased from time to time, is referred to herein as the "Management Fee." For
each calendar year or part thereof during the term of this Agreement, Manager
shall be eligible to receive an annual bonus equal to up to 50% of the
Management Fee based upon the achievement of certain objectives determined by
the Compensation Committee of the Board of Directors for such calendar year (the
"Annual Bonus") payable within 30 days after the certification of the Company's
financial statements for such year.

     (c)  Disputes, etc.  If the Company disputes the amount of expenses or fees
          -------------
claimed by Manager, the Company shall notify Manager in writing before payment
is due, and if the matter cannot be resolved informally between the parties,
either the Company or Manager may request

                                      -6-
<PAGE>

resolution of the dispute pursuant to Section 10. The Company shall pay when due
the portion of any such amounts that is not in dispute.

     (d)  Directors and Officers Liability Insurance.  The Company shall use its
          ------------------------------------------
reasonable efforts to obtain and maintain directors and officers liability
insurance coverage in amounts customary for similarly situated companies in the
telecommunications industry.

     (e)  Benefits.  During the Term of this Agreement, Vento and Sullivan
          --------
shall be entitled to participate in any welfare benefit plan sponsored or
maintained by the Company to the extent Vento or Sullivan, as applicable, is
eligible to participate in any such plan under the generally applicable
provisions thereof, such welfare plans to include life, health and disability
insurance.

     (f)  Relocation Expenses.  The Company shall pay or reimburse Sullivan
          -------------------
for all reasonable expenses incurred or paid by Sullivan in relocating to a
residence in the Arlington, Virginia vicinity, including brokerage commission
payable in connection with the sale of Sullivan's current residence. Sullivan
shall provide the Company with a statement setting forth in reasonable detail
(with copies of invoices and the supporting documentation) the expenses claimed
under this Section 4(f) and the Company shall pay to Sullivan each such amount
promptly after receipt of such statement.

     Section 5.  Term and Termination.
                 --------------------
     (a)  Term.  This Agreement shall commence on the Effective Date and, unless
          ----
earlier terminated in accordance herewith, shall terminate on the fifth (5th)
anniversary of the Effective Date (the "Term").

     (b)  Termination.
          -----------

          (i)  By Either Party. Either party may terminate this Agreement in the
     event that a Governmental Authority shall enter an order appointing a
     custodian, receiver, trustee, intervenor or other officer with similar
     powers with respect to the other party or with respect to any substantial
     part of its property, or constituting an order for relief or approving a
     petition in bankruptcy or insolvency law of any jurisdiction, or ordering
     the dissolution, winding up or liquidation of such party; or if a party
     files a petition seeking any such order; or if any such petition shall be
     filed against such party and shall not be dismissed within sixty (60) days
     thereafter; or an order shall have been issued granting such party a
     suspension of payments under applicable law and any such order is not
     dismissed within sixty (60) days thereafter.

          (ii) By Company.  The Company may terminate this Agreement:

          (A)  immediately in the event of the indictment or conviction of
Manager, Vento or Sullivan of any felony; or any act constituting fraud,
embezzlement, willful misconduct or gross negligence by Manager that materially
adversely affects the Company or the Business monetarily or otherwise (as
determined by a majority vote of the Board of Directors (excluding Messrs. Vento
and Sullivan));

                                      -7-
<PAGE>

          (B)  immediately in the event of a material breach of this Agreement
by Manager (as determined by a majority vote of the Board of Directors
(excluding Messrs. Vento and Sullivan)), which has not been cured within thirty
(30) days following notice thereof from the Company, including, without
limitation, the failure of the Company to meet any of the objectives set forth
on Schedule I hereto;

          (C)  immediately in the event of the failure by Manager to cause to be
provided to the Company the services of both Messrs. Vento and Sullivan as
contemplated by Section 3(c) hereof;

          (D)  immediately in the event that the Company shall fail to comply
with the terms of any representation, warranty, covenant or agreement contained
in the Credit Documents or in any other agreement or instrument pursuant to
which the Company has incurred indebtedness for borrowed money in the principal
amount of $25,000,000 or more, which failure to comply results in, or with
notice or the passage of time would result in, an event of default thereunder;
or

          (E)  immediately in the event that the indebtedness incurred pursuant
to the Credit Documents or any other indebtedness for borrowed money of the
Company in the principal amount of $25,000,000 or more shall have been
accelerated by the holder thereof.

         (iii) By Manager.  Manager may terminate this Agreement:

          (A)  if the Company has failed to make any payment pursuant to Section
4 within thirty (30) business days following Manager's written notice to the
Company of such failure;

          (B)  in the event of a material breach of this Agreement by the
Company (other than a payment default) which has not been cured within thirty
(30) days following notice thereof from the Company;

          (C)  in the event that (i) Vento and Sullivan are removed as directors
of the Company or are demoted or removed from their respective offices or there
is a material diminishment of Vento's and Sullivan's responsibilities, duties or
status which diminishment is not rescinded within 30 days after the date of
receipt by the Board of Directors of the Company from Vento and Sullivan of
their respective written notice referring to this provision and describing such
diminishment, or (ii) the Company relocates its principal offices without
Manager's consent to a location more than 50 miles from the principal offices of
the Company in Arlington, Virginia; or

          (D)  voluntarily upon thirty (30) days prior written notice to the
Company.

     (c)  Benefits Payable Upon Termination.
          ---------------------------------

          (i)  Following the termination of this Agreement pursuant to any
     manner described in Section 5(b), the Company shall pay to Manager any
     Management Fee earned, but unpaid, for services rendered to the Company on
     or prior to the date of such termination.

                                      -8-
<PAGE>

          (ii)  Following the termination of this Agreement by Manager pursuant
     to Sections 5(b)(iii)(A), (B) or (C) or a termination by the Company
     pursuant to Sections 5(b)(ii)(B), (C) or (D), Manager shall be entitled to
     receive payment of (x) the Management Fee, and (y) the Annual Bonus. The
     amount of the Annual Bonus shall be determined as follows: (I) In the event
     that the date of termination is on or prior to June 30 of any applicable
     calendar year, the amount of the Annual Bonus shall be equal to a pro rata
     portion (based upon the actual number of days during such calendar year
     that this Agreement shall have been in effect) of the Annual Bonus payable
     in respect of such year (determined based upon the achievement by the
     Company of the objectives for all of such calendar year). (II) In the event
     that the date of termination is after June 30 of any applicable calendar
     year, the amount of the Annual Bonus shall be equal to the Annual Bonus
     payable in respect of such year (determined based upon the achievement by
     the Company of the objectives for all of such calendar year), in either
     instance payable on the later to occur of (x) 30 days after the
     certification of the Company's financial statements for such year, and (y)
     the last day of the month after which (a) a New Provider (as hereinafter
     defined) shall be retained by the Company in accordance with Section
     5(f)(i), and (b) the Manager shall have nominated a Successor Control Group
     (as hereinafter defined) acceptable to the Board of Directors in its sole
     discretion (excluding Vento and Sullivan) in accordance with Section
     5(f)(ii). The Management Fee shall be payable monthly in arrears commencing
     on the last day of the month after which (I) a New Provider shall be
     retained by the Company in accordance with Section 5(f))(i) and (II) the
     Manager shall have nominated a Successor Control Group reasonably
     acceptable to the Board of Directors in its sole discretion (excluding
     Vento and Sullivan) in accordance with Section 5(f)(ii).

          (iii) The Company shall be entitled to set off against the Management
     Fee payable to the Manager following the termination of this Agreement
     pursuant to Section 5(c)(ii), any amounts earned by either Vento or
     Sullivan in other employment after the termination of this Agreement;
     provided, however, that neither Vento nor Sullivan shall be required, as a
     --------  -------
     condition to the receipt of such payment pursuant to Section 5(c)(ii), to
     seek such other employment.

     (d)  Remedies.  The remedies set forth herein are not intended to be
          --------
exclusive, and all remedies shall be cumulative and may be exercised
concurrently with any other remedy available to Manager or the Company at law or
in equity.

     (e)  Continuing Obligations.  After receipt of written notice of
          ----------------------
termination, but prior to the effective date of such termination, Manager shall
continue to perform under this Agreement unless specifically instructed to
discontinue such performance. In the event of termination, Manager and the
Company shall remain liable for their respective obligations accrued under this
Agreement prior to the effective date of termination.

     (f)  Transition Arrangements.
          -----------------------

          (i)  In the event of termination of this Agreement for any reason,
     Manager shall at the Company's expense cooperate with the Company in order
     to facilitate the transition to a new management service provider (the "New
     Provider"). Upon such

                                      -9-
<PAGE>

     termination, the Board of Directors (excluding Vento and Sullivan) shall
     nominate a New Provider that would not cause a significant detrimental
     effect on the eligibility of the Company to realize the benefits, if any,
     that the Company derives from its status as a "very small business," as
     defined in 47 CFR Section 24.720(b)(2), which New Provider shall be
     acceptable to the Manager. In the event that the Manager does not approve
     such New Provider within five (5) business days of notice of such
     nomination by the Board of Directors, then for each successive thirty (30)
     day period or portion thereof following such five (5) business day period
     that a New Provider shall not have been approved by Vento and Sullivan,
     each of Vento and Sullivan shall sell to the Company, in addition to the
     other Repurchased Shares required to be sold to the Company pursuant to
     Section 7, an additional 50% of the Shares then owned by each of them at a
     price per share equal to $.01 per Share. Manager shall at the Company's
     expense take whatever steps are commercially reasonable to assist the New
     Provider in assuming the management of the Company and the operation of the
     Business including, without limitation, transferring to the New Provider
     all historical financial, tax, accounting and other data in the possession
     of Manager, and giving such consents, assigning such permits and executing
     such instruments as may be necessary to vest in the New Provider those
     rights that were necessary for Manager to perform its services hereunder.

          (ii) Within five (5) business days after the nomination by the Board
     of Directors of a New Provider, each of Vento and Sullivan agrees to
     nominate a successor Person or group of Persons (collectively, a "Successor
     Control Group") that would not cause a significant detrimental effect on
     the eligibility of the Company to hold a Block F PCS license and to realize
     the benefits, if any, that the Company derives from its status as a "very
     small business," as defined in 47 CFR Section 24.720(b)(2), to whom the
     Voting Preference Common Stock and Class C Common Stock shall be
     transferred by Vento and Sullivan, which Successor Control Group shall be
     reasonably acceptable to the Board of Directors in its sole discretion
     (excluding Vento and Sullivan); it being understood that the New Provider
     shall be deemed to be a Successor Control Group reasonably acceptable to
     the Board of Directors. In the event that Vento and Sullivan do not
     nominate a Successor Control Group reasonably acceptable to the Board of
     Directors in its sole discretion (excluding Vento and Sullivan) within such
     five (5) business day period, then for each successive 30 day period or
     portion thereof that Vento and Sullivan shall not have nominated a
     Successor Control Group reasonably acceptable to the Board of Directors in
     its sole discretion (excluding Vento and Sullivan), each of Vento and
     Sullivan shall sell to the Company after the expiration of each 30 day
     period, in addition to any other Repurchased Shares, and after giving
     effect to the repurchase by the Company of Shares pursuant to Section
     5(f)(i), an additional 50% of the Shares then owned by each of them at a
     price per share equal to $.01 per Share. Immediately after a Successor
     Control Group reasonably acceptable to the Board of Directors is nominated,
     the Company, Vento and Sullivan shall take, or cause to be taken, all
     actions necessary or required, including, without limitation, filing of all
     applications with the FCC, to obtain all requisite consents and
     authorizations to permit the transfer of the Voting Preference Common Stock
     and Class C Common Stock to the Successor Control Group. On the first
     business day after all such consents and authorizations shall have been
     obtained, Vento and Sullivan agree to resign as directors and officers of
     the Company and to sell to the Successor Control Group all of the shares of
     Voting Preference Common Stock and Class

                                     -10-
<PAGE>

     C Common Stock owned by them for the per share price paid by them for such
     shares. If at any time, whether by reason of the inability of the Company
     to obtain all requisite consents and authorizations to permit the transfer
     of the Voting Preference Common Stock and Class C Common Stock to the
     Successor Control Group or otherwise, the Board of Directors withdraws its
     consent to the nomination of a Successor Control Group, the procedure
     outlined in Sections 5(f)(i) and (ii) shall be repeated commencing with the
     nomination by Vento and Sullivan of a Successor Control Group within five
     (5) business days after the nomination by the Board of Directors of a
     successor New Provider.

     (g)  Return of Information.  Upon termination of this Agreement, all books
          ---------------------
and records in the possession of Manager relating to the maintenance and
operation of and accounting for the Company, together with all supplies and
other items of property owned by the Company and in Manager's possession, shall
be delivered to the Company.

     Section 6.   Noncompetition and Confidentiality.
                  ----------------------------------

     (a)  Noncompetition.  During the Term and (x) for one year thereafter if
          --------------
after the expiration of the Term on the fifth (5th) anniversary of the Effective
Date the Company offers to extend this Agreement for at least one (1) year on
terms and conditions no less favorable than those contained herein and the
Manager rejects such offer, and (y) for so long as the Company is paying to the
Manager the Management Fee pursuant to Section 5(c)(ii) following the
termination of this Agreement pursuant to Sections 5(b)(ii)(B), (C) or (D) or
Sections 5(b)(iii)(A), (B) or (C), none of Manager, Vento, Sullivan or any of
their respective Affiliates shall, without the consent of the Company, assist or
become associated with any person or entity, whether as a principal, partner,
employee, consultant or shareholder (other than as a holder of not in excess of
5% of the outstanding voting shares of any publicly traded company) that is
actively engaged in the business of providing mobile wireless telecommunications
services in the Territory.

     (b)  Confidentiality.  Without the prior written consent of the Company,
          ---------------
except to the extent required by an order of a court having competent
jurisdiction or under subpoena from a governmental body or agency, none of
Manager, Vento, Sullivan or any of their respective Affiliates shall disclose
any trade secrets, customer lists, drawings, designs, information regarding
product development, marketing plans, sales plans, manufacturing plans,
financial records, packaging design or other financial, commercial, business or
technical information relating to the Company or any of its subsidiaries or
affiliates (collectively, "Confidential Information"), to any third person,
unless such Confidential Information has been previously disclosed to the public
by the Company or is in the public domain (other than by reason of Manager's,
Vento's, Sullivan's or any of their respective Affiliates' breach of this
Section 6(b)), except that Manager, Vento, Sullivan and their respective
Affiliates may disclose Confidential Information to the extent advisable in
their sole discretion in connection with (i) the performance of Manager's duties
hereunder, or (ii) the issuance of Company securities, or (iii) obtaining
financing for the Company, or (iv) the enforcement of Manager's fights under
this Agreement, or (v) any disclosures that may be required by law, including
securities laws.

                                     -11-
<PAGE>

     (c)  Company Property.  Promptly following the termination of this
          ----------------
Agreement, Manager, Vento and Sullivan shall return to the Company all property
of the Company, and all copies thereof in its possession or under its control,
and all tangible embodiments of Confidential Information in its possession in
whatever media such Confidential Information is maintained.

     (d)  Non-Solicitation of Employees.  During the Term and for one year
          -----------------------------
thereafter, none of Manager, Vento, Sullivan or any of their respective
Affiliates will directly or indirectly induce any employee of the Company or any
of its subsidiaries or affiliates to terminate employment with such entity, and
will not directly or indirectly, either individually or as owner, agent,
employee, consultant or otherwise, employ or offer employment to any person who
is or was employed by the Company or a subsidiary thereof, unless such person
shall have ceased to be employed by such entity for a period of at least six
months.

     (e)  Injunctive Relief with Respect to Covenants.  Manager, Vento and
          -------------------------------------------
Sullivan acknowledge and agree that the covenants and obligations with respect
to noncompetition, inventions, confidentiality and Company property contained in
this Section 6 relate to special, unique and extraordinary matters and that a
violation of any of the terms of such covenants and obligations will cause the
Company irreparable injury for which adequate remedies are not available at law.
Therefore, Manager, Vento and Sullivan agree that the Company shall be entitled
to an injunction, restraining order, or such other equitable relief as a court
of competent jurisdiction may deem necessary or appropriate to restrain Manager,
Vento and Sullivan from committing any violation of the covenants and
obligations contained in this Section 6. These injunctive remedies are
cumulative and are in addition to any other fights and remedies the Company may
have at law or in equity. Notwithstanding the foregoing, in the event that this
Agreement is terminated by the Company pursuant to Section 5(b)(ii)(A) by reason
of the indictment or conviction of Vento, Sullivan or the Manager of any felony
or any act constituting fraud, misappropriation or embezzlement due to the
wrongful acts of either Vento or Sullivan, that materially adversely effects the
Company or the Business monetarily or otherwise (as determined by a majority
vote of the Board of Directors (excluding Vento and Sullivan), Sullivan or
Vento, as applicable, shall sell to the Company, and the Company shall purchase
from Vento or Sullivan, as applicable, all of the Shares (whether or not vested)
at a price per share equal to $.01 per Share, it being understood that in the
event that the Company shall have terminated this Agreement by reason of any
such event, and either Vento or Sullivan shall not have been indicted for or
been convicted of any felony or act constituting fraud, misappropriation or
embezzlement that materially adversely effects the Company or the Business
monetarily or otherwise (as determined by a majority vote of the Board of
Directors (excluding Vento and Sullivan), such individual shall not be obligated
to sell his vested Shares to the Company.

     Section 7.    Vesting and Repurchase of Restricted Shares, Etc.
                   ------------------------------------------------

     (a)  General.  Each of Vento and Sullivan hereby agrees that the Management
          -------
Shares shall be subject to repurchase by the Company at a repurchase price of
$.01 per share in accordance with the terms of this Section 7. As used in this
Section 7, the following terms have the following meanings:

                                     -12-
<PAGE>

     (i)     "Base Shares" means 14,425.49 shares of Class A Voting Common Stock
and 14,155.78 shares of Series E Preferred Stock or, if the Supplemental Shares
have theretofore been repurchased pursuant to Section 7(b)(i)(v) or 7(b)(ii),
13,816.91 shares of Class A Voting Common Stock and 13,569.18 shares of Series E
Preferred Stock.

     (ii)    "Deemed Per Share Value" means (A) in the case of an Extraordinary
Event specified in clause (x) or (y) of the definition thereof, (1) the fair
market value of all of the assets of the Company and its Subsidiaries at the
time of any calculation of such value, less (x) any expenses which would be
incurred solely in connection with the disposition of such assets, (y) the
aggregate amount of all liabilities of the Company and (z) the aggregate
redemption price of all outstanding shares of all series of Preferred Stock of
the Company that are not then convertible into Common Stock at the option of the
holder thereof (or, if any such series is not then redeemable, the aggregate
liquidation preference thereof), all as determined in good faith by the Board of
Directors (excluding Vento and Sullivan), divided by (2) the number of shares of
Common Stock outstanding on a Fully Diluted Basis, and (B) in the case of an
Extraordinary Event specified in clause (z) of the definition thereof, the per
share offering price of the Common Stock issued in connection with the public
offering occurring on the IPO Date.

     (iii)   "Extraordinary Event" means (x) the consummation of a Company
Merger (as defined in the Stockholders Agreement) after giving effect to which
the Cash Equity Investors in the aggregate shall beneficially own on a Fully
Diluted Basis less than 33% of the capital stock or other equity interests in
the surviving entity, (y) the consummation of a Company Sale (as defined in the
Stockholders Agreement) or (z) the occurrence of the IPO Date.

     (iv)    "Extraordinary Event Shares" means a number of Management Shares
equal to 3,606.38 shares of Class A Voting Common Stock, or, if the Supplemental
Shares have theretofore been repurchased pursuant to Section 7(b)(i)(v) or
7(b)(ii), 3,454.22 shares of Class A Voting Common Stock.

     (v)     "Fully Diluted Basis" means, with respect to the shares of Common
Stock outstanding, all of the shares of all classes of Common Stock then
outstanding (regardless of whether subject to repurchase), plus all the shares
of Common Stock issuable upon the exercise of outstanding options or convertible
securities that are then convertible into Common Stock at the option of the
holder thereof, provided that for the purpose of calculating the number of
                --------
shares the number of shares of Common Stock outstanding on a Fully Diluted Basis
in order to determine whether the Internal Rate of Return pursuant to Section
7(b) (iii) equals (A) more than 30% but less than 35%, none of the Extraordinary
Event Shares shall be deemed to be outstanding, and (B) 35% or more, one-half of
the Extraordinary Event Shares shall be deemed to be outstanding.

     (vi)    "Management Shares" means collectively, the shares of Series E
Preferred Stock and Class A Voting Common Stock issued to each of Vento and
Sullivan pursuant to Section 2.5 of the Securities Purchase Agreement.

     (vii)   "Restricted Holder" means each of Vento and Sullivan.

                                     -13-
<PAGE>

     (viii)    "Supplemental Shares" means 586.60 shares of Series E Preferred
Stock and 760.74 shares of Class A Voting Common Stock.

(b)  Repurchase of Shares.
     --------------------

     (i)       Repurchase Upon Termination.  Following the termination of this
               ---------------------------
Agreement for any reason, each Restricted Holder shall sell to the Company, and
the Company shall purchase from each Restricted Holder: (v) first, if and only
if the termination occurs prior to January 23, 2000 and the Supplemental Closing
shall not have theretofore occurred, such Restricted Holder's Supplemental
Shares, (w) second, if and only if the termination occurs prior to the
occurrence of an Extraordinary Event, such Restricted Holder's Extraordinary
Event Shares; (x) third, if and only if the termination occurs after the
occurrence of an Extraordinary Event, such Restricted Holder's Extraordinary
Event Shares that have not theretofore vested pursuant to Schedule II: (y)
fourth, such Restricted Holder's Base Shares that have not theretofore vested
pursuant to Schedule II; and (z) fifth, the number of shares of Series E
Preferred Stock and Class A Common Stock subject to repurchase pursuant to
Sections 5(f) and 6(e).

     (ii)      Repurchase In Absence of Supplemental Closing.  If and only if
               ---------------------------------------------
the Supplemental Closing shall not have occurred on or before January 23, 2000,
each Restricted Holder shall sell to the Company, and the Company shall purchase
from each Restricted Holder, his Supplemental Shares.

     (iii)     Repurchase Upon Extraordinary Event.  Upon the occurrence of an
               -----------------------------------
Extraordinary Event, each Restricted Holder shall sell to the Company, and the
Company shall purchase from each Restricted Holder, the percentage of his
Extraordinary Event Shares set forth opposite the Internal Rate of Return
realized by the Cash Equity Investors as set forth on the chart below in
connection with the applicable Extraordinary Event:

                     Internal Rate of
                     Return Realized by           Percentage of Extraordinary
                     Cash Equity Investors        Event Shares to be Repurchased
                     ---------------------        ------------------------------

                     less than 30%                100%

                     30% or more but less         50%
                     than 35%

                     35% or more                  0%

For the purpose of this paragraph, the Cash Equity Investors will be deemed to
have "realized an Internal Rate of Return" of any percentage specified, as of
any date, when (i) the aggregate amount of all distributions actually made in
respect of the Cash Equity Investors' Series C Preferred Stock and Common Stock,
plus an amount equal to interest thereon at the rate of 10% per annum,
compounded annually, from the date each such distribution is made to and
including the date of the calculation, plus the aggregate

                                     -14-
<PAGE>

     redemption price of all outstanding shares of Series C Preferred Stock then
     Beneficially Owned by the Cash Equity Investors, plus the product of the
     Deemed Per Share Value multiplied by the number of shares of all classes of
     Common Stock then owned by the Cash Equity Investors, is equal to (ii) the
     aggregate amount of all capital contributions made by the Cash Equity
     Investors, plus an amount equal to interest thereon at such percentage per
     annum, compounded annually, from the date each such capital contribution is
     made to and including such date of calculation.

          (iv) The Management Shares repurchased pursuant to this Section 7(b)
     are sometimes referred to, collectively, as the "Repurchased Shares."

     (c)  Closing of Repurchase; Assignment of Repurchase Right.  The closing of
          -----------------------------------------------------
a purchase and sale of Repurchased Shares shall take place on a date mutually
agreed by the applicable Restricted Holder and the Company, but in no event
later than 30 days after (i) in the case of Section 7(b)(i), the date that this
Agreement terminated or, in the case of Section 7(b)(i)(z), the end of any 30-
day period referred to in Section 5(f) or (ii) in the case of Section 7(b)(ii),
January 23, 2000, or (iii) in the case of Section 7(b)(iii), the occurrence of
the Extraordinary Event. At such closing, the Company shall deliver to the
applicable Restricted Holder a check in the amount of the aggregate repurchase
price and, upon delivery thereof, the Company shall become the legal and
beneficial owner of the Repurchased Shares and all rights and interests therein
or relating thereto, and the Company shall have the right to retain and transfer
to its own name the shares of Preferred Stock and/or Common Stock being
repurchased by the Company. Whenever the Company shall have the right to
repurchase Preferred Stock and/or Common Stock hereunder, the Company may
designate and assign one or more employees, officers, directors or shareholders
of the Company or other persons or organizations to exercise all or a party of
the Company's repurchase rights under this Agreement and purchase all or a part
of such Preferred Stock and/or Common Stock.

     (d)  Escrow of Shares.  The Certificate(s) representing all shares, subject
          ----------------
to repurchase pursuant to Section 7 (b) shall be held by the Secretary of the
Company as escrow holder (the "Escrow Holder"), along with a stock power
executed by the applicable Restricted Holder in blank. The Escrow Holder is
hereby directed to permit transfer of such shares only in accordance with this
Agreement and the Stockholders Agreement. In the event further instructions are
desired by the Escrow Holder, he shall be entitled to rely upon written
directions of the Board of Directors (excluding Vento and Sullivan). The Escrow
Holder shall have no liability for any act or omission hereunder while acting in
good faith in the exercise of his own judgment. If the Company or any assignee
repurchases any of the Management Shares pursuant to this Section 7, the Escrow
Holder, upon receipt of written notice of such repurchase from the proposed
transferee, shall take all steps necessary to accomplish such repurchase. From
time to time, upon a Restricted Holder's request, the Escrow Holder shall: (i)
cancel the certificate(s) held by the Escrow Holder and representing Management
Shares, (ii) cause new certificate(s) to be issued representing the number of
Management Shares no longer subject to repurchase pursuant to this Section 7,
which certificate(s) the Escrow Holder shall deliver to such Restricted Holder,
and (iii) cause new certificate(s) to be issued representing the balance of the
Management Shares, which certificate(s) shall be held in escrow by the Escrow
Holder in accordance with the provisions of this Section 7(d). Subject to the
terms hereof, a Restricted Holder shall have all the rights of stockholder with
respect to the Management Shares while they are held in escrow,

                                     -15-
<PAGE>

including without limitation, the right to vote the Management Shares and
receive any cash dividends declared thereon. If, from time to time during the
term of the Company's repurchase right, there is (i) any stock dividend, stock
split or other change in the Management Shares, or (ii) any merger or sale of
all or substantially all of the assets or other acquisition of the Company, any
and all new, substituted or additional securities to which such Restricted
Holder is entitled by reason of his ownership of the Management Shares shall be
immediately subject to this escrow, deposited with the Escrow Holder and
included thereafter as "Management Shares" for purposes of this Agreement and
the Company's repurchase right.

     (e)  Legends.  The share certificates evidencing the Management Shares
          -------
shall be endorsed with the following legend (in addition to any legend required
to be placed thereon by applicable federal or state securities laws or the
Stockholders Agreement):

               THE SHARES REPRESENTED BY THIS CERTIFICATE MAY BE TRANSFERRED
               ONLY IN ACCORDANCE WITH THE TERMS OF A MANAGEMENT AGREEMENT
               BETWEEN THE COMPANY AND AN AFFILIATE OF THE STOCKHOLDER, A COPY
               OF WHICH IS ON FILE WITH THE SECRETARY OF THE COMPANY, WHICH
               PROVIDES, AMONG OTHER THINGS FOR THE REPURCHASE BY THE COMPANY OF
               THE SHARES REPRESENTED BY THIS CERTIFICATE.

     After the IPO Date, each of Vento and Sullivan shall have the right to
exchange certificates evidencing the number of Management Shares no longer
subject to repurchase pursuant to this Section 7, for certificates that do not
contain the legend set forth above.

     Section 8.    Limitations of Liability.
                   ------------------------

     (a)  Force Majeure.  Neither of the parties will be liable for
          -------------
nonperformance or defective or late performance of any of its obligations
hereunder to the extent and for such periods of time as such nonperformance,
defective performance or late performance is due to reasons outside such party's
control, including acts of God, war (declared or undeclared), acts (including
failure to act) of any governmental authority, riots, revolutions, fire, floods,
explosions, sabotage, nuclear incidents, lightning, weather, earthquakes,
storms, sinkholes, epidemics, strikes, or delays of suppliers or subcontractors
for the same causes. Neither party shall be required to settle any labor dispute
in any manner which is deemed by that party to be less than totally
advantageous, in that party's sole discretion.

     (b)  Exculpation of Manager.  Notwithstanding any other provision of this
          ----------------------
Agreement, Manager shall not be liable for any failure or delay in its
performance hereunder (except with respect to its performance of its obligations
under Section 5(f)) or for any performance which is substandard, except where
such failure, delay or substandard performance is the result of willful
misconduct or gross negligence on the part of Manager.

     (c)  No Consequential or Special Damages.  Manager shall not be
          -----------------------------------
responsible to the Company for any indirect, incidental, consequential or
special damages to the Company, the Business or any subscriber or customer of
any Business or any other person, including any

                                     -16-
<PAGE>

damage to or loss of revenues, business or goodwill, suffered by any person or
entity for any failure of any system or failure of performance hereunder.
Manager's liability to the Company in respect of any such failure shall be
limited (in addition to the limits set forth in paragraphs (a) and (b) above) to
the amounts paid by the Company to Manager pursuant to this Agreement for the
period of any such failure.

     (d)  Vento and Sullivan.  The limitations of liabilities set forth in
          ------------------
paragraphs (a), (b) and (c) above shall apply to Vento's and Sullivan's
obligation to use good faith efforts to cause the Manager to perform all of its
obligations pursuant to this Agreement.

     Section 9.     Books and Records.  Manager shall keep or cause to be kept
                    -----------------
accounts and complete books and records with respect to its management of the
operation of the Business, showing all costs, expenditures, allocations,
receipts, revenues, assets, and liabilities; any and all other records
necessary, convenient or incidental to recording the financial aspects of the
operation of the Business and sufficient to record the profits and losses
generated by the operation of the Business.  Within 15 days after the end of
each month Manager shall prepare or cause to be prepared and transmit to the
Company unaudited statements, which shall include a general ledger and a trail
balance.  Manager shall also provide at the Company's request any and all such
additional statements or reports as may be reasonably necessary to the Company's
oversight and control of the Business.  The Company shall have control over and
access, at all reasonable times during normal business hours, to the books and
records maintained by Manager pursuant to this Section 9.

     Section 10.    Dispute Resolution.
                    ------------------

     (a)  Dispute Resolution.  The parties desire to resolve disputes arising
          ------------------
out of this Agreement without litigation. Accordingly, except for action seeking
a temporary restraining order injunction related to the purposes of this
Agreement, or suit to compel compliance with this dispute resolution process,
the parties agree to use the dispute resolution procedures set forth in Section
10 as their sole remedy with respect to any controversy or claim arising out of
or relating to this Agreement or its breach.

     At the written request of any party, the parties to the dispute will
appoint knowledgeable, responsible representatives to meet and negotiate in good
faith to resolve any dispute arising under this Agreement.  The parties intend
that these negotiations be conducted by business representatives, including at
least one senior executive of each party to the dispute.  The location, format,
frequency, duration and conclusion of these discussions shall be left to the
discretion of the representatives.  Discussion and correspondence among the
representatives for purposes of these negotiations shall be treated as
confidential information developed for purposes of settlement, exempt from
discovery and production, which shall not be admissible in the arbitration
described below.  Documents identified in or provided with such communications,
which are not prepared for purposes of the negotiations, are not so exempted and
may, if otherwise admissible, be admitted in evidence in the arbitration or
lawsuit.

     (b)  Mediation.  If the negotiations set forth in Section 10(a) do not
          ---------
resolve the dispute within thirty (30) days of the initial written request, the
parties agree to work in good faith to settle the dispute by mediation under the
commercial mediation rules of the American

                                     -17-
<PAGE>

Arbitration Association. The parties will attempt to agree on a mediator. If
they are unable to do so, the mediation will be referred to the New York, New
York office of the American Arbitration Association for mediation which will
appoint a qualified mediator to serve. The mediation shall take place in New
York, New York or such other location as mutually agreed upon by the parties.
Unless the parties agree otherwise, the first mediation session shall take place
no later than ten (10) days after the initial written request to negotiate. The
mediation shall continue until the dispute is resolved or until such time as the
mediator makes a good faith determination that the likelihood of resolution is
sufficiently remote that continuation of the mediation is not warranted.

     (c)  Arbitration.  If the mediation conducted pursuant to Section 10(b)
          -----------
does not resolve the dispute within thirty (30) days of the commencement of
mediation, or if prior to the expiration of such thirty (30) day period the
mediator determines that continuation of the mediation process is not warranted,
the dispute shall be submitted to binding arbitration by a panel of three
arbitrators pursuant to the Commercial Arbitration Rules of the American
Arbitration Association. Any party may demand such arbitration in accordance
with the procedures set out in those rules. Each party shall have the right to
take the deposition of up to five individuals (or a larger number of individuals
with the consent of two of the three arbitrators), and any expert witness
designated by the other party. Each party shall also have the right to request
production of relevant documents, the scope and enforcement of which shall be
governed by the arbitrator. Additional discovery may be only by order of the
arbitrator, and only upon a showing of substantial need. The arbitrator shall be
authorized to issue subpoenas for the purpose of requiring attendance of
witnesses at depositions. The arbitration hearing shall be commenced within ten
(10) days of the determination that mediation is not going to be successful. The
arbitration shall be held in New York, New York or such other location as
mutually agreed upon by the parties. The arbitrator shall control the scheduling
so as to process the matter expeditiously. The parties may submit written
briefs. The arbitrator shall rule on the dispute by issuing a written opinion
within thirty (30) days after the close of hearings. The times specified in this
section may be extended upon mutual agreement of the parties or by the
arbitrator upon a showing of good cause. The award rendered by arbitration shall
be final, binding and nonappealable judgment and the aware may be entered in any
court of competent jurisdiction in the United States. Special, consequential or
punitive damages shall not be awarded by the arbitrator.

     (d)  Confidentiality.  The parties agree that all communications and
          ---------------
negotiations between the parties during the dispute resolution process, any
settlements agreed upon during the dispute resolution process and any
information regarding the other party obtained during the dispute resolution
process (that are not already public knowledge) are confidential and may be
disclosed only to employees and agents of the parties who shall have a "need to
know" the information and who shall have been made aware of the confidentiality
obligations set forth in this Section, unless the party is required by law to
disclose such information.

     (e)  Fees and Expenses.  The parties shall equally split the fees of the
          -----------------
mediator and the arbitrator. Any party found by the arbitrator to have breached
this Agreement shall pay all other out-of-pocket costs and expenses, including
reasonable attorneys' fees and expenses, of the other party incurred in
connection with the dispute resolution process. If the arbitrator does not find

                                     -18-
<PAGE>

that any party has breached this Agreement, then each party shall bear its own
costs and expenses, including attorneys' fees and expenses.

     Section 11.    Inspection Rights; Delivery of Information.
                    ------------------------------------------

     (a)  Company's Right to Inspect.  Manager will permit representatives of
          --------------------------
the Company, at the Company's cost, during normal business hours and upon not
less than five business days' advanced written request, to (i) visit and inspect
during normal business hours Manager's properties and facilities which are
utilized in connection with Manager's provision of services to the Company
pursuant to this Agreement, including without limitation access to, and the
right to make copies of, books and records of the Company located at such
properties and facilities, and (ii) discuss with Manager's officers and
employees such properties and facilities and Manager's provision of services to
the Company pursuant to this Agreement. All such information shall be held in
confidence by the Company, except for disclosures made to the Company's
advisors, lenders and investors, or as required to be disclosed by process of
law or other applicable law.

     (b)  Notice of Certain Events.  Promptly and in any event within three (3)
          ------------------------
business days after Manager has received notice or has otherwise become aware
thereof, Manager shall give the Company notice of (i) the commencement of any
material proceeding or investigation against the Company or Manager by or before
any governmental body or in any court or before any arbitrator which would be
likely to have a material adverse effect on Manager, the Business or the
Company, or on Manager's ability to perform its obligations hereunder, and (ii)
the occurrence or nonoccurrence of any event (x) which constitutes, or which
with the passage of time or giving of notice or both would constitute, a default
by the Company or Manager under this Agreement or under any other material
agreement to which the Company or Manager is a party or by which its properties
may be bound, and (y) would be likely to have a material adverse effect on
Manager, the Business or the Company, or on Manager's ability to perform its
obligations hereunder, giving in each case the details thereof and specifying
the action being taken or proposed to be taken with respect thereto. Promptly
upon receipt thereof, Manager shall deliver to the Company copies of any
material notice or report regarding any License from the grantor of such license
or from any Governmental authority regarding the Business or the Company.

     (c)  Other Information.  From time to time and promptly upon each request,
          -----------------
Manager shall provide the Company with such data, certificates, reports,
statements, financial projections, documents or further information regarding
the business, equity owners, assets, liabilities, financial position or results
of operations of Manager, as may be reasonably requested by the Company.

     Section 12.    Representations and Warranties.  Each party makes the
                    ------------------------------
following representations and warranties to the other party, as a material
inducement to the other party to enter into this Agreement.

     (a)  Organization and Standing of Parties.  Each party is a limited
          ------------------------------------
liability company and is duly organized, validly existing and in good standing
under the laws of the State of its formation referenced in the first paragraph
of this Agreement. Each party has full limited

                                     -19-
<PAGE>

liability company power and authority to own its assets and carry on its
business as now conducted by it.

     (b)  Execution, Delivery, Performance and Binding Effect.  The execution,
          ---------------------------------------------------
delivery and performance by each party of this Agreement have been duly
authorized by all necessary limited liability company or corporate action, as
appropriate, including by each party's members or managers, as appropriate. Each
party has full power and authority to enter into and perform its obligations
under this Agreement. The execution, delivery and performance by such party of
this Agreement will not (with the passage of time or giving of notice or both)
conflict with, violate any provision of, result in the breach of, or constitute
a default under (i) such party's articles of organization, certificate of
incorporation, regulations, or other constituent, organizational or governing
documents, as applicable, (ii) any License held by such party, (iii) any Law,
(iv) any order, writ, injunction, decree, judgment or regulation of any
Governmental Agency or (v) any contract, agreement, arrangement or
understanding, (A) to which such party is a party, (B) to which or by which such
party is subject or bound, or (C) to which or by which such party's assets are
subject or bound. The execution, delivery and performance of this Agreement will
not (with the passage of time or giving of notice or both) (i) create or impose
any Lien upon the assets of such party, (ii) result in the termination,
suspension, modification or impairment of any contract, agreement, arrangement
or understanding (A) to which such party is a party, (B) to which, or by which,
such party is subject or bound, or (C) to which or by which such party's assets
are subject or bound, or (iii) result in the termination, suspension,
modification or impairment of any governmental license, permit, authorization or
certificate held by such party or relating to its assets or businesses. This
Agreement constitutes the legal, valid and binding obligation of such party
enforceable against it in accordance with its terms.

     (c)  Consents.  No consent, approval, order or authorization of, or
          --------
registration, qualification, designation, declaration or filing with, any
Governmental Authority or other Person is required on the part of each party in
connection with the execution, delivery and performance of this Agreement.

     (d)  Litigation; Claims.  With respect to each party, there is no claim,
          ------------------
action, audit, arbitration, dispute, investigation, suit, litigation or legal
proceeding pending, or to the best of such party's knowledge threatened, against
such party (i) relating to or otherwise affecting such party's ability to
execute and deliver this Agreement or to perform such party's obligations
hereunder, or (ii) which would materially adversely affect the Company or the
Company's contemplated business.

     (e)  Court Orders, Decrees, Judgments, Etc.  There is outstanding no order,
          -------------------------------------
writ, injunction, decree or judgment of any court, governmental agency or
arbitration tribunal against a party (i) relating to or otherwise affecting such
party's ability to execute and deliver this Agreement or to perform such party's
obligations hereunder or (ii) which would materially adversely affect the
Company or the Company's contemplated business.

     Section 13.    Indemnification; Expenses.
                    -------------------------

     (a)  Indemnification.  In the event Vento or Sullivan (each, an
          ---------------
"Indemnified Party") is threatened to be made a party to any threatened,
pending, or completed action, suit, or

                                     -20-
<PAGE>

proceeding (a "Proceeding"), whether civil, criminal, administrative, or
investigative (whether or not by or in the right of the Company), by reason of
the fact that such person is or was a director, officer, incorporator, employee,
or agent of the Company, or is or was serving at the request of the Company as a
director, officer, incorporator, employee, partner, trustee, or agent of another
corporation, partnership, joint venture, trust, employee benefit plan or other
enterprise (including the Manager) (an "Other Entity"), shall be entitled to be
indemnified by the Company to the full extent then permitted by law against
expenses (including counsel fees and disbursements), judgments, fines (including
excise taxes assessed on a person with respect to an employee benefit plan), and
amounts paid in settlement incurred by him in connection with such Proceeding.

     (b)  Advancement of Expenses.  The Company shall, from time to time,
          -----------------------
reimburse or advance to any Indemnified Party the funds necessary for payment of
expenses, including attorneys' fees and disbursements, incurred in connection
with any Proceeding, in advance of the final disposition of such Proceeding;
provided, however, that, if (and only if) required by the Delaware General
Corporation Law, such expenses incurred by or on behalf of any such Indemnified
Party may be paid in advance of the final disposition of a Proceeding only upon
receipt by the Company of an undertaking, by or on behalf of such Indemnified
Party, to repay any such amount so advanced if it shall ultimately be determined
by final judicial decision from which there is no further right of appeal that
such Indemnified Party is not entitled to be indemnified for such expenses.

     Section 14.    Miscellaneous.
                    -------------

     (a)  Counterparts.  This Agreement may be executed by one or more of the
          ------------
parties hereto in any number of counterparts and all of said counterparts taken
together shall be deemed to constitute one and the same instrument.

     (b)  Construction.  Each of the parties hereto acknowledge that it has
          ------------
reviewed this Agreement and that the normal rule of construction to the effect
that any ambiguities are to be resolved against the drafting party shall not be
employed in the interpretation of this Agreement or any amendments hereto.

     (c)  Benefit; Assignment.  This Agreement shall be binding upon and inure
          -------------------
to the benefit of all parties hereto and their respective successors and
permitted assigns; provided, however, that Manager shall not assign or otherwise
transfer its rights and obligations under this Agreement without the Company's
prior written consent. Any sale, assignment, sublease or other transfer in
violation of this Section 14(c) shall be null and void. Each of the Stockholders
(as such term is defined in the Stockholders Agreement) shall be deemed a third
party beneficiary of the Company's rights under this Agreement and shall be
permitted to exercise any rights pursuant to this provision with the consent of
AT&T and two-thirds in interest of the Cash Equity Investors.

     (d)  Complete Agreement.  This document and the exhibits attached hereto
          ------------------
and each of the documents referred to herein embody the complete agreement and
understanding among the parties and supersede and preempt any prior
understandings, agreements, or representations

                                     -21-
<PAGE>

by or among the parties written or oral, which may have related to the subject
matter hereof in any way.

     (e)  Amendment.  This Agreement may not be amended except by a writing
          ---------
signed by each of the parties.

     (f)  Governing Law.  This Agreement shall be governed by and construed in
          -------------
accordance with the internal laws, and not the laws of conflict, of the State of
New York.

     (g)  Severability.  If any provision of this Agreement or the application
          ------------
thereof to any person or circumstance shall for any reason or to any extent be
invalid or unenforceable, the remainder of this Agreement and the application of
such provision to other persons or circumstances shall not be affected thereby,
but, rather, shall be enforced to the extent permitted by law. Furthermore, in
lieu of such an illegal, invalid or unenforceable provision, there shall be
added automatically as part of this Agreement a provision as similar in terms to
such illegal, invalid or unenforceable provision as may be possible and be
legal, valid or enforceable.

     (h)  Further Assurances.  The parties agree that they will take all such
          ------------------
further actions and execute and deliver all such further instruments and
documents as may be required in order to effectuate the agreements set forth In
this Agreement.

     (i)  Waiver.  No failure or delay on the part of the parties or any of
          ------
them in exercising any right, power or privilege hereunder, nor any course of
dealing among the parties or any of them shall operate as a waiver of any such
right, power or privilege nor shall any single or partial exercise of any such
right, power or privilege preclude the simultaneous or later exercise of any
other right, power or privilege. The rights and remedies herein expressly
provided are cumulative and are not exclusive of any rights or remedies which
the parties or any of them would otherwise have.

     (j)  Notices.  All notices and communications hereunder shall be in
          -------
writing and shall be deemed to have been duly given to a party when delivered in
person (including delivery by an express delivery service or by facsimile
transmission during the recipient's regular business hours) to an officer of the
Company or Manager, respectively, or three business days after such notice is
enclosed in a properly sealed envelope, certified or registered, and deposited
(postage and certification or registration prepaid) in a post office or
collection facility regularly maintained by the United States Postal Service and
addressed as follows:

                                     -22-
<PAGE>

If to Manager:

TeleCorp Management Corp.
1101 17th Street, NW - Suite 900
Washington, D.C. 20036
Attn: Chief Executive Officer
Telephone: (202) 721-0230
Facsimile: (202) 833-4888

with a copy to:

TeleCorp Management Corp.
1101 17th Street, NW- Suite 900
Washington, D.C. 20036
Attention: General Counsel
Telephone: (202) 721-0230
Facsimile: (202) 833-4888

If to the Company:

TeleCorp PCS, Inc.
1101 17th Street, NW - Suite 900
Washington, D.C. 20036
Attn: Chief Executive Officer
Telephone: (202) 721-0230
Facsimile: (202) 833-4888

With copies to:

TeleCorp Management Corp.
1101 17th Street, NW - Suite 900
Washington, D.C. 20036
Attention: General Counsel
Telephone: (202) 721-0230
Facsimile: (202) 833-4888

AT&T Wireless Services, Inc.
5000 Carillon Point
Kirkland, Washington 98033
Attention: William W. Hague
Telephone: (425) 828-8461
Facsimile: (425) 828-8451

And

                                     -23-
<PAGE>

AT&T Corp.
295 North Maple Avenue
Basking Ridge, NJ 07920
Attention: Corporate Secretary
Telephone:
Facsimile: (908) 953-4657

and

Friedman Kaplan & Seiler LLP
875 Third Avenue, 8th Floor
New York, New York 10022
Attention: Daniel M. Taitz
Telephone: (212) 833-1109
Facsimile: (212) 355-6401

and

Rubin Baum Levin Constant & Friedman
30 Rockefeller Plaza
New York, New York 10112
Attention: Gregg S. Lerner, Esq.
Telephone: (212) 698-7705
Facsimile: (212) 698-7825

and

To each Cash Equity Investor, to its address set forth on Schedule I to the
Stockholders Agreement.

and

Mayer, Brown & Platt
1675 Broadway
New York, New York 10019
Attention: Mark S. Wojciechowski, Esq.
Telephone: (212) 506-2525
Facsimile: (212) 262-1910

or to such other addresses as either party may designate in a written notice
served upon the other party in the manner provided herein.

                                      ***

                                     -24-
<PAGE>

IN WITNESS WHEREOF, the parties have set their hands effective as of the date
first written above.

                              COMPANY:

                              TELECORP PCS, INC.


                              By:     /s/ Thomas H. Sullivan
                                    ---------------------------------------
                                    Name:
                                    Title: Executive Vice President


                              MANAGER:

                              TELECORP MANAGEMENT CORP.


                              By:     /s/ Thomas H. Sullivan
                                    ---------------------------------------
                                    Name:
                                    Title: President


In order to induce the Company to execute and deliver the foregoing Management
Agreement, by their execution in the spaces provided below each of the
undersigned hereby agrees to be bound by the provisions of Sections 5(f), 6 and
7 of this Agreement and (subject to the limitations on liability set forth in
Section 8(d)) to use good faith efforts to cause the Manager to perform all of
its obligations pursuant to this Agreement.


 /s/ Gerald Vento
- --------------------------
Gerald Vento


 /s/ Thomas Sullivan
- --------------------------
Thomas Sullivan

                                     -25-
<PAGE>


                                      I-1
<PAGE>

                                  SCHEDULE II

                               Vesting Schedule
                               ----------------

Vesting of Vento's and Sullivan's Non-Extraordinary Event Shares.
- ----------------------------------------------------------------

     Vento's and Sullivan's Management Shares (other than his Extraordinary
Event Shares) shall vest on the Effective Date, the completion of the Minimum
Build-Out Plan (as defined in the Stockholder Agreement) and on the specified
anniversaries of the Effective Date as follows:

<TABLE>
<CAPTION>
          Vesting Date                                           Percent of Shares
          ------------                                           -----------------
          <S>                                                    <C>
          Commencement Date                                       20%

          Second Anniversary                                      15%

          Third Anniversary                                       15%

          Fourth Anniversary                                      15%

          Fifth Anniversary                                       15%

          Completion of Year 1 and Year 2 of Minimum Build-Out
           Plan                                                   10%


          Completion of Year 3 of Minimum Build-Out Plan plus
          aggregate POP coverage of 60% of total POPs
          (based on 1995 POPs, as defined in the Stockholder's
          Agreement)                                              10%
                                                                  --


          Total                                                  100%
</TABLE>

Accelerated Vesting of Vento's and Sullivan's Non-Extraordinary Event Shares.
- ----------------------------------------------------------------------------

     In the event of a termination of the Management Agreement by Manager
pursuant to Section 5(b)(iii)(A), (B) or (C) or a termination by the Company
pursuant to Section 5(b)(ii)(B), (C) or (D), in addition to any of Vento's and
Sullivan's Management Shares that shall have theretofore vested in accordance
with the above "Vesting of Vento's and Sullivan's Non-Extraordinary event
Shares" schedule, a number of each of Vento's and Sullivan's unvested Base
Shares determined as set forth below shall immediately vest (and shall not be
subject to repurchase by the Company):

     (a) in the event that the date of termination is no more than six months
after the Commencement Date or no more than six months after the most recent
Anniversary Date, a pro

                                     II-1
<PAGE>

rata portion (based upon the actual number of days since the Commencement Date
or the Anniversary Date) of the number of shares (if any) that would have vested
on the immediately following Anniversary Date; and

     (b) in the event that the date of termination is more than six months after
the Effective Date or more than six months after the most recent Anniversary
Date, all of the shares (if any) that would have vested on the immediately
following Anniversary Date.

Vesting of Vento's and Sullivan's Extraordinary Event Shares.
- ------------------------------------------------------------

Vento's and Sullivan's Extraordinary Event Shares, to the extent not repurchased
in connection with an Extraordinary Event, shall vest (A) in the case of an
Extraordinary Event described in Section 7(a)(iii)(x) or (y), on the date of
consummation of the Extraordinary Event, and (B) in the case of an Extraordinary
Event described in Section 7(a)(iii)(z), on the IPO Date and the specified
anniversaries of such date as follows:

<TABLE>
<CAPTION>
Vesting Date                  Percent of Shares
- ------------                  -----------------
<S>                           <C>
IPO Date                      50%

First Anniversary             16-2/3%

Second Anniversary            16-2/3%

Third Anniversary             16-2/3%
                              ------

Total                         100.00
</TABLE>

                                     II-2

<PAGE>

                                                                  EXHIBIT 10.5.2



                              AMENDMENT NO. 1 TO

                             MANAGEMENT AGREEMENT

                                    Between

                           TELECORP MANAGEMENT CORP.

                                      and

                              TELECORP PCS, INC.

                           Dated as of May 25, 1999
<PAGE>

                              AMENDMENT NO. 1 TO
                              ------------------
                             MANAGEMENT AGREEMENT
                             --------------------

     This Amendment No. 1 to Management Agreement (the "Amendment") is entered
into as of May 25, 1999 by and between TELECORP MANAGEMENT CORP., a Delaware
corporation ("Manager"), and TELECORP PCS, INC., a Delaware corporation (the
"Company").

                                  WITNESSETH:

     WHEREAS, the Company and Manager entered into that certain Management
Agreement dated as of July 17, 1998 (the "Management Agreement");

     WHEREAS, the Company and Manager wish to amend the Management Agreement in
order to impose certain restrictions on the additional securities of the Company
issued to the stockholders of Manager in conjunction with the expansion of the
Company's Territory from the continental United States (the "Domestic Market")
into the San Juan MTA (the "Puerto Rico Market");

     NOW, THEREFORE, for and in consideration of the premises, the covenants and
agreements set forth herein, and other good and valuable consideration, the
receipt and sufficiency of which are acknowledged by the execution and delivery
hereof, the parties agree as follows:

     Amendment 1.  The Third "WHEREAS" clause n the recitals of the Management
     -----------
Agreement is hereby amended and restated as follows:

          "WHEREAS, Gerald Vento ("Vento") and Thomas Sullivan ("Sullivan") are
     the owners of all of the ownership interests in Manager and are each the of
     record and beneficial owner of the shares of the Common Stock and Preferred
     Stock described on Schedule A attached hereto (hereafter referred to
     collectively as the "Shares") which were issued in conjunction with the
     closings under the Securities Purchase Agreement (the "Domestic Market
     Closing") and the Puerto Rico Stock Purchase Agreement (the "Puerto Rico
     Market Closing"), respectively;"

     Amendment 2.  Section 2 of the Management Agreement is hereby amended and
     -----------
restated in its entirety as follows:

          "Section 2.  Management Standards.  Manager shall discharge its duties
                       --------------------
     hereunder in compliance with the Stockholders Agreement, the Network
     Membership License Agreement, the Resale Agreement and the Roaming
     Agreement (collectively as the same have been or may be amended from time
     to time the "Operating Agreements") and all applicable Law. In performing
     its obligations hereunder, Manager shall act in a manner that it reasonably
     believes to be in or not opposed to the best interests of the
<PAGE>

     Company consistent with the standards set forth herein. Nothing in this
     Agreement shall be construed as constituting Manager an agent of the
     Company beyond the extent expressly provided in, and as limited by, this
     Agreement."

     Amendment 3.  Section 5(f)(ii) of the Management Agreement is hereby
     -----------
amended and restated in its entirety as follows:

          "(ii) Within five (5) business days after the nomination by the Board
     of Directors of a New Provider, each of Vento and Sullivan agrees to
     nominate a successor Person or group of Persons (collectively, a "Successor
     Control Group") that would not cause a significant detrimental effect on
     the eligibility of the Company to hold a Block F PCS license and to realize
     the benefits, if any, that the Company derives from its status as a "very
     small business," as defined in 47 CFR Section 24.720(b)(2), to whom the
     Voting Preference Common Stock and the Class C Common Stock set forth on
     Schedule A (the "Class C Common Stock") shall be transferred by Vento and
     Sullivan, which Successor Control Group shall be reasonably acceptable to
     the Board of Directors in its sole discretion (excluding Vento and
     Sullivan); it being understood that the New Provider shall be deemed to be
     a Successor Control Group reasonably acceptable to the Board of Directors.
     In the event that Vento and Sullivan do not nominate a Successor Control
     Group reasonably acceptable to the Board of Directors in its sole
     discretion (excluding Vento and Sullivan) within such five (5) business day
     period, then for each successive 30 day period or portion thereof that
     Vento and Sullivan shall not have nominated a Successor Control Group
     reasonably acceptable to the Board of Directors in its sole discretion
     (excluding Vento and Sullivan), each of Vento and Sullivan shall sell to
     the Company after the expiration of each 30 day period, in addition to any
     other Repurchased Shares, and after giving effect to the repurchase by the
     Company of Shares pursuant to Section 5(f)(i), an additional 50% of the
     Shares then owned by each of them at a price per share equal to $.01 per
     Share.  Immediately after a Successor Control Group reasonably acceptable
     to the Board of Directors is nominated, the Company, Vento and Sullivan
     shall take, or cause to be taken, all actions necessary or required,
     including, without limitation, filing of all applications with the FCC, to
     obtain all requisite consents and authorizations to permit the transfer of
     the Voting Preference Common Stock and Class C Common Stock to the
     Successor Control Group. On the first business day after all such consents
     and authorizations shall have been obtained, Vento and Sullivan agree to
     resign as directors and officers of the Company and to sell to the
     Successor Control Group all of the shares of Voting Preference Common Stock
     and Class C Common Stock owned by them for the per share price paid by them
     for such shares. If at any time, whether by reason of the inability of the
     Company to obtain all requisite consents and authorizations to permit the
     transfer of the Voting Preference Common Stock and Class C Common Stock to
     the Successor Control Group or otherwise, the Board of Directors withdraws
     its consent to the nomination of a Successor Control Group, the procedure
     outlined in Sections 5(f)(i) and (ii) shall be repeated commencing with the
     nomination by Vento and

                                       2
<PAGE>

     Sullivan of a Successor Control Group within five (5) business days after
     the nomination by the Board of Directors of a successor New Provider."

     Amendment 4.  Sections 7(a) and 7(b) of the Management Agreement are
     -----------
hereby amended and restated in their entirety as follows:

          "Section 7.  Vesting and Repurchase of Restricted Shares, Etc.
                       -------------------------------------------------

          (a) General.  Each of Vento and Sullivan hereby agrees that the
              -------
     Shares shall be subject to repurchase by the Company at a repurchase price
     of $.01 per share in accordance with the terms of this Section 7. As used
     in this Section 7, the following terms have the following meanings:

               (i)    "Base Shares" means 18,655.65 shares of Class A Voting
     Common Stock and 18,219.13 shares of Series E Preferred Stock.

               (ii)   "Deemed Per Share Value" means (A) in the case of an
     Extraordinary Event specified in clause (x) or (y) of the definition
     thereof, (1) the fair market value of all of the assets of the Company and
     its Subsidiaries at the time of any calculation of such value, less (x) any
     expenses which would be incurred solely in connection with the disposition
     of such assets, (y) the aggregate amount of all liabilities of the Company
     and (z) the aggregate redemption price of all outstanding shares of all
     series of Preferred Stock of the Company that are not then convertible into
     Common Stock at the option of the holder thereof (or, if any such series is
     not then redeemable, the aggregate liquidation preference thereof), all as
     determined in good faith by the Board of Directors (excluding Vento and
     Sullivan), divided by (2) the number of shares of Common Stock outstanding
     on a Fully Diluted Basis, and (B) in the case of an Extraordinary Event
     specified in clause (z) of the definition thereof, the per share offering
     price of the Common Stock issued in connection with the public offering
     occurring on the IPO Date.

               (iii)  "Extraordinary Event" means (x) the consummation of a
     Company Merger (as defined in the Stockholders Agreement) after giving
     effect to which the Cash Equity Investors in the aggregate shall
     beneficially own on a Fully Diluted Basis less than 33% of the capital
     stock or other equity Interests in the surviving entity (exclusive of any
     previously existing ownership interest in any entity party to the Company
     Merger other than the Company), (y) the consummation of a Company Sale (as
     defined in the Stockholders Agreement) or (z) the occurrence of the IPO
     Date.

               (iv)   "Extraordinary Event Shares" means a number of Shares
     equal to 4,663.92 shares of Class A Voting Common Stock.

               (v)    "Fully Diluted Basis" means, with respect to the shares of
     Common Stock outstanding, all of the shares of all classes of Common Stock
     then outstanding (regardless of whether subject to repurchase), plus all
     the shares of Common

                                       3
<PAGE>

     Stock issuable upon the exercise of outstanding options or convertible
     securities that are then convertible into Common Stock at the option of the
     holder thereof, provided that for the purpose of calculating the number of
                     --------
     shares of Common Stock outstanding on a Fully Diluted Basis in order to
     determine whether the Internal Rate of Return pursuant to Section 7(b)
     (iii) equals (A) more than 30% but less than 35%, none of the Extraordinary
     Event Shares shall be deemed to be outstanding, and (B) 35% or more, one-
     half of the Extraordinary Event Shares shall be deemed to be outstanding.

               (vi)   "Restricted Holder" means each of Vento and Sullivan.

          (b) Repurchase of Shares.
              --------------------

               (i)    Repurchase Upon Termination. Following the termination of
                      ---------------------------
this Agreement for any reason, each Restricted Holder shall sell to the Company,
and the Company shall purchase from each Restricted Holder: (v) first, if and
only if the termination occurs prior to the occurrence of an Extraordinary
Event, such Restricted Holder's Extraordinary Event Shares, (w) second, if and
only if the termination occurs after the occurrence of an Extraordinary Event,
such Restricted Holder's Extraordinary Event Shares that have not theretofore
vested pursuant to Schedule B; (x) third, such Restricted Holder's Base Shares
that have not theretofore vested pursuant to Schedule B, and (y) fourth, the
number of shares of Series E Preferred Stock and Class A Common Stock subject to
repurchase pursuant to Sections 5(f) and 6(e).

               (ii)   Repurchase Upon Extraordinary Event.  Upon the occurrence
                      -----------------------------------
of an Extraordinary Event, each Restricted Holder shall sell to the Company, and
the Company shall purchase from each Restricted Holder, the percentage of his
Extraordinary Event Shares set forth opposite the Internal Rate of Return
realized by the Cash Equity Investors as set forth on the chart below in
connection with the applicable Extraordinary Event:

     Internal Rate of
     Return Realized by             Percentage of Extraordinary
     Cash Equity Investors          Event Shares to be Repurchased
     ---------------------          ------------------------------

     less than 30%                              100%

     30% or more but less                        50%
     than 35%

     35% or more                                  0%

For the purpose of this paragraph, the Cash Equity Investors will be deemed to
have "realized an Internal Rate of Return" of any percentage specified, as of
any date, when (i) the aggregate amount of all distributions actually made in
respect of the Cash Equity Investors' Series C Preferred Stock and Common Stock,
plus an amount equal to interest thereon at the rate of 10% per annum,
compounded annually, from the date each such distribution is made to and
including

                                       4
<PAGE>

the date of the calculation, plus the aggregate redemption price of all
outstanding shares of Series C Preferred Stock then Beneficially Owned by the
Cash Equity Investors, plus the product of the Deemed Per Share Value multiplied
by the number of shares of all classes of Common Stock then owned by the Cash
Equity Investors, is equal to (ii) the aggregate amount of all capital
contributions made by the Cash Equity Investors, plus an amount equal to
interest thereon at such percentage per annum, compounded annually, from the
date each such capital contribution is made to and including such date of
calculation.

               (iii)  The Management Shares repurchased pursuant to this Section
7(b) are sometimes referred to, collectively, as the "Repurchased Shares."

     Amendment 5.  All references to "Management Shares" in the Management
     -----------
Agreement are hereby amended to say "Shares".

     Amendment 6.  Section 12(a) and Section 12(b) of the Management Agreement
     -----------
are hereby amended and restated in their entirety as follows:

          "(a) Organization and Standing of Parties. Each party is a corporation
               ------------------------------------
     and is duly organized, validly existing and in good standing under the laws
     of the State of its incorporation referenced in the first paragraph of this
     Agreement. Each party has full corporate power and authority to own its
     assets and carry on its business as now conducted by it.

          (c)  Execution, Delivery, Performance and Binding Effect. The
               ---------------------------------------------------
     execution, delivery and performance by each party of this Agreement have
     been duly authorized by all necessary corporate action, including by each
     party's board of directors. Each party has full power and authority to
     enter into and perform its obligations under this Agreement. The execution,
     delivery and performance by such party of this Agreement will not (with the
     passage of time or giving of notice or both) conflict with, violate any
     provision of, result in the breach of or constitute a default under (i)
     such party's certificate of incorporation or by-laws, (ii) any License held
     by such party, (iii) any Law, (iv) any order, writ, injunction, decree,
     judgment or regulation of any Governmental Agency or (v) any contract,
     agreement, arrangement or understanding, (A) to which such party is a
     party, (B) to which or by which such party is subject or bound, or (C) to
     which or by which such party's assets are subject or bound. The execution,
     delivery and performance of this Agreement will not (with the passage of
     time or giving of notice or both) (i) create or impose any Lien upon the
     assets of such party, (ii) result in the termination, suspension,
     modification or impairment of any contract, agreement, arrangement or
     understanding (A) to which such party is a party, (B) to which, or by
     which, such party is subject or bound, or (C) to which or by which such
     party's assets are subject or bound, or (iii) result in the termination,
     suspension, modification or impairment of any governmental license, permit,
     authorization or certificate held by such party or relating to its assets
     or businesses. This Agreement constitutes the legal, valid and binding
     obligation of such party enforceable against it in accordance with its
     terms."

                                       5
<PAGE>

     Amendment 7.  Section 14(j) of the Management Agreement is hereby amended
     -----------
and restated in its entirety as follows:

          "Notices.  All notices and communications hereunder shall be in
          --------
     writing and shall be deemed to have been duly given to a party when
     delivered in person (including delivery by an express delivery service or
     by facsimile transmission during the recipient's regular business hours) to
     an officer of the Company or Manager, respectively, or three business days
     after such notice is enclosed in a properly sealed envelope, certified or
     registered, and deposited (postage and certification or registration
     prepaid) in a post office or collection facility regularly maintained by
     the United States Postal Service and addressed as follows:


If to Manager:

     TeleCorp Management Corp.
     1010 N. Glebe Road - Suite 800
     Arlington, Virginia  22201
     Attn: Chief Executive Officer
     Telephone: (703) 236-1100
     Facsimile: (703) 236-1376

With a copy to:

     TeleCorp Management Corp.
     1010 N. Glebe Road - Suite 800
     Arlington, Virginia  22201
     Attention: General Counsel
     Telephone: (703) 236-1100
     Facsimile: (703) 236-1376

If to the Company:

     TeleCorp PCS, Inc.
     1010 N. Glebe Road - Suite 800
     Arlington, Virginia  22201
     Attn: Chief Executive Officer
     Telephone: (703) 236-1100
     Facsimile: (703) 236-1376

With copies to:

     TeleCorp Management Corp.

                                       6
<PAGE>

     1010 N. Glebe Road - Suite 800
     Arlington, Virginia  22201
     Attention: General Counsel
     Telephone: (703) 236-1100
     Facsimile: (703) 236-1376

     AT&T Wireless Services, Inc.
     5000 Carillon Point
     Kirkland, Washington 98033
     Attention: William W. Hague
     Telephone: (425) 828-8461
     Facsimile: (425) 828-8451

     and

     AT&T Corp.
     295 North Maple Avenue
     Basking Ridge, NJ 07920
     Attention: Corporate Secretary
     Telephone:
     Facsimile: (908) 953-4657

     and

     Friedman Kaplan & Seiler LLP
     875 Third Avenue, 8th Floor
     New York, New York 10022
     Attention: Daniel M. Taitz
     Telephone: (212) 833-1109
     Facsimile: (212) 355-6401

     and

     To each Cash Equity Investor, to its address set forth on Schedule I to the
     Stockholders Agreement.

                                       7
<PAGE>

     and

     Mayer, Brown & Platt
     1675 Broadway
     New York, new York 10019
     Attention: Mark S. Wojciechowski, Esq.
     Telephone: (212) 506-2525
     Facsimile: (212) 262-1910

     or to such other addresses as either party may designate in a written
notice served upon the other party in the manner provided herein."


     Amendment 8.   Schedule II to the Management Agreement is hereby amended
     -----------
and restated in its entirety as set forth in Schedule B hereto.

     All other terms and conditions of the Management Agreement shall remain in
full force and effect.

     Capitalized terms used herein, but not otherwise defined herein, shall have
the meaning set forth in the Management Agreement.

                                       8
<PAGE>

     IN WITNESS WHEREOF, the parties have set their hands effective as of the
date first written above.

                              COMPANY:

                              TELECORP PCS, INC.


                              By: /s/ Thomas H. Sullivan
                                 --------------------------------
                                 Name:
                                 Title: Executive Vice President

                              MANAGER:

                              TELECORP MANAGEMENT CORP.


                              By: /s/ Thomas H. Sullivan
                                 --------------------------------
                                 Name:
                                 Title: President

In order to induce the Company to execute and deliver the foregoing Amendment
No. 1 to Management Agreement, by their execution in the spaces provided below
each of the undersigned hereby agrees to be bound by the provisions of
Amendments 2, 3 and 7 of this Amendment.

/s/ Gerald Vento
- ------------------------
Gerald Vento

/s/ Thomas Sullivan
- ------------------------
Thomas Sullivan

                                       9
<PAGE>

                                  SCHEDULE A
                                  ----------


                            Domestic Market Closing
                            -----------------------

<TABLE>
<CAPTION>
                   Series E Preferred     Class A Common       Class C Common      Voting Preference
                   -------------------  -------------------  -------------------  -------------------
<S>                <C>                  <C>                  <C>                  <C>
Gerald Vento            8,729.40            10,779.82               339.83                    5
Thomas Sullivan         5,426.38             6,700.97               211.25                    5
</TABLE>

                          Puerto Rico Market Closing
                          --------------------------

<TABLE>
<CAPTION>
                   Series E Preferred     Class A Common       Class C Common      Voting Preference
                   -------------------  -------------------  -------------------  -------------------
<S>                <C>                  <C>                  <C>                  <C>
Gerald Vento            2,505.73             3,260.75                NA                   NA
Thomas Sullivan         1,557.62             2,026.95                NA                   NA
</TABLE>

                                      10
<PAGE>

                                  SCHEDULE B
                                  ----------

                               Vesting Schedule
                               ----------------

Vesting of Vento's and Sullivan's Non-Extraordinary Event Shares.
- -----------------------------------------------------------------

     Vento's and Sullivan's Shares (other than his Extraordinary Event Shares)
shall vest on the Effective Date, the completion of the Minimum Build-Out Plan
for each of the Domestic and Puerto Rico and on the specified anniversaries of
the Effective Date as follows:

<TABLE>
<CAPTION>
     Vesting Date                            Percent of Shares
     ------------                            -----------------
     <S>                                     <C>
     Effective Date                          20%

     Second Anniversary                      15%

     Third Anniversary                       15%

     Fourth Anniversary                      15%

     Fifth Anniversary                       15%

     Completion of Year I and Year 2 of      10% of  the Shares issued at the
     Minimum Build-Out Plan of the           Domestic Market  Domestic Market Closing

     Completion of Year 3 of Minimum         10% of the Shares issued at the
     Build-Out Plan of the Domestic Market   Domestic Market Closing
     plus aggregate POP coverage of 60% of
     total POPs in the Domestic Market
     (based on 1995 POPs, as defined in the
     Stockholder's Agreement)

     Completion of Year I and Year 2 of      10% of  the Shares issued at the
     Minimum Build-Out Plan of the Puerto    Puerto Rico Market Closing
     Rico Market

     Completion of Year 3 of Minimum         10% of the Shares issued at the
     Build-Out Plan of the Puerto Rico       Puerto Rico Market Closing
     Market plus aggregate POP coverage of
     60% of total POPs in the Puerto Rico
     Market (based on 1995 POPs, as defined
     in the Stockholder's Agreement)

     Total                                   100%
</TABLE>

                                      11
<PAGE>

Accelerated Vesting of Vento's and Sullivan's Non-Extraordinary Event Shares.
- -----------------------------------------------------------------------------

     In the event of a termination of the Management Agreement by Manager
pursuant to Section 5(b)(iii)(A), (B) or (C) or a termination by the Company
pursuant to Section 5(b)(ii)(B), (C) or (D), in addition to any of Vento's and
Sullivan's Shares that shall have theretofore vested in accordance with the
above "Vesting of Vento's and Sullivan's Non-Extraordinary Event Shares"
schedule, a number of each of Vento's and Sullivan's unvested Base Shares
determined as set forth below shall immediately vest (and shall not be subject
to repurchase by the Company):

     (a) in the event that the date of termination is no more than six months
after the Effective Date or no more than six months after the most recent
Anniversary Date, a pro rata portion (based upon the actual number of days since
the Effective Date or the Anniversary Date) of the number of shares (if any)
that would have vested on the immediately following Anniversary Date; and

     (b) in the event that the date of termination is more than six months after
the Effective Date or more than six months after the most recent Anniversary
Date, all of the shares (if any) that would have vested on the immediately
following Anniversary Date.

Vesting of Vento's and Sullivan's Extraordinary Event Shares.
- -------------------------------------------------------------

     Vento's and Sullivan's Extraordinary Event Shares, to the extent not
repurchased in connection with an Extraordinary Event, shall vest (A) in the
case of an Extraordinary Event described in Section 7(a)(iii)(x) or (y), on the
date of consummation of the Extraordinary Event, and (B) in the case of an
Extraordinary Event described in Section 7(a)(iii)(z), on the IPO Date and the
specified anniversaries of such date as follows:

     Vesting Date              Percent of Shares
     ------------              -----------------

     IPO Date                   50%

     First Anniversary          16-2/3%

     Second Anniversary         16-2/3%

     Third Anniversary          16-2/3%
                                -------

     Total                     100.00

                                      12

<PAGE>

                                                                  EXHIBIT 10.6.1

                                                                  EXECUTION COPY

                      INTERCARRIER ROAMER SERVICE AGREEMENT
                      -------------------------------------


         THIS INTERCARRIER ROAMER SERVICE AGREEMENT (the "Agreement") is dated
as of the 17th day of July, 1998 by and between AT&T Wireless Services, Inc., on
behalf of itself and its Affiliates listed in Schedule I hereto (individually
and collectively, "AT&T") and TeleCorp PCS, Inc., on behalf of itself and its
Affiliates listed in Schedule 2 hereto (individually and collectively,
"Company"). AT&T and Company are sometimes referred to, individually, as a
"Party" and together as "Parties."

                                  R E C I T A L
                                  -------------

         WHEREAS, each of AT&T and Company desire to make arrangements to
facilitate the provision of voice and voice-related mobile wireless
radiotelephone service to the customers of the other Party, while such customers
are using the wireless radiotelephone facilities of such Party, in accordance
with the terms of this Agreement;

         NOW, THEREFORE, in consideration of the mutual promises herein set
forth and intending to be legally bound hereby, the Parties do hereby agree as
follows:

                                   ARTICLE I

                                  DEFINITIONS
                                  -----------

         As used in this Agreement, the terms below shall have the following
meanings:

         Affiliate means, with respect to a Party, any facilities-based CMRS
operating company that (a) is controlled by or under common control with the
Party, (b) is an entity in which the Party has at least fifty percent (50%)
voting interest, (c) shares switching facilities with the Party, (d) is managed
by the Party, or (e) is providing Service utilizing CMRS spectrum it has
acquired from a Party.

         Approved CIBERNET Negative File Guidelines means the negative file
 guidelines appearing in the CIBER Record in effect from time to time.

         Authorized Receipt Point or "ARP" means the location or address of the
 Party designated by the Home Carrier as the delivery point for its CIBER
 records and authorized agent for performing CIBER edits.

         Authorized Roamer means a Roamer using equipment and an assigned
telephone number with the NPA/NXX combinations listed in accordance with Article
IV below for Serving Carrier has not received a negative notification in
accordance with the provisions of this Agreement.
<PAGE>

         CIBER means Cellular Intercarrier Billing Exchange Record.

         CIBER Record means the publication prepared by CIBERNET Corporation, a
wholly-owned subsidiary of the Cellular Telecommunications Industry Association,
as a service to the wireless communications industry. Unless specifically
provided otherwise in this Agreement, all words and phrases defined in the CIBER
Record shall have the meaning herein that they have therein.

         Clearinghouse means that entity which provides for the exchange of
CIBER records and performs industry accepted CIBER edits, including edits to
verify Industry Negative File information.

         CMRS means Commercial Mobile Radio Service.

         ESN means the Electronic Serial Number that is encoded in a wireless
telephone set by the manufacturer and which is broadcast by such telephone.

         Home Carrier means a Party who is providing Service to its registered
customers in a geographic area where it holds a license or permit to construct
and operate a mobile wireless radiotelephone system and station.

         Industry Negative File means the negative file maintained by the
authorized Clearinghouses in accordance with approved CIBERNET Negative File
Guidelines.

         MIN means the "Mobile Identification Number" which is assigned by a
Home Carrier to each of its registered customers.

         NPA/NXX combinations means the six-digit numerical combinations
assigned by regulatory authorities to identify the area code and telephone
number prefix for Service.

         Roamer means a customer of one Party who seeks Service within a
geographic area served by the other Party.

         Service means telecommunications service for the transmission and
reception of voice and voice-related features provided by means of radio
frequencies that are or may be licensed, permitted or authorized now or in the
future by the Federal Communications Commission (or any successor agency), and
in respect of which service the user equipment is capable of and intended for
usage during routine movement, including halts at unspecified points, at more
than one location throughout a wide area public or private wireless network.
Unless otherwise specifically agreed by the Parties, Service shall include
personal base station services but, by way of example and without limitation,
does not include fixed wireless services, two-way messaging wireless services
(NBPCS), video broadcasting wireless services, television services (whether
cable, broadcast or direct broadcast satellite), broadcast radio services,
interactive informational or transactional content services such as on-line
content network services, Internet based services, satellite based
communications services, and air to ground communications services.

                                       2
<PAGE>

         Serving Carrier means a Party who provides Service for registered
customers of another Party while such customers are in the geographic area where
the Serving Carrier, directly or through subsidiaries, provides Service.

                                   ARTICLE II

                              PROVISION OF SERVICE
                              --------------------

         2.1 Each Party shall provide, to any Authorized Roamer who so requests,
voice communication service and any and all other types of Service that such
Party provides to its own customers. Notwithstanding the foregoing, the Serving
Carrier shall not be required to modify or supplement its system in any way to
address any incompatibility in the technologies used by the Serving Carrier and
the Home Carrier that may preclude the provision of Service to an Authorized
Roamer. Service shall be provided in accordance with the Serving Carrier's own
ordinary requirements, restrictions, practices, and tariffs, if applicable, and
with the terms and conditions of this Agreement.

         2.2 Notwithstanding anything in this Agreement to the contrary, a
Serving Carrier may suspend or terminate Service to an Authorized Roamer in
accordance with the terms of its own ordinary requirements, restrictions,
practices, and tariffs, but such suspension or termination shall not affect the
rights and obligations of the Parties for Service furnished hereunder prior to
such termination or suspension.

         2.3 In connection with its Service to Roamers, no Serving Carrier shall
use recorded announcements or other inducements for an Authorized Roamer to
discontinue the Service of its Home Carrier or, unless otherwise authorized
herein, Roamer's use of a Serving Carrier's system.

         2.4 In the event that an operating entity becomes an Affiliate of a
Party after the date of this Agreement, such Party may, upon thirty (30) days
prior written notice to the other Party, add such operating entity to Schedule 1
or Schedule 2, as the case may be, at the expiration of which thirty-day period
(a) the customers of such entity shall be entitled to Service as Roamers from
the other Party on the terms and conditions of this Agreement and (b) such
operating entity shall provide Service to customers of the other Party who are
Authorized Roamers, although the other Party is not obligated to request such
Service or to require its customers to request such Service. Notwithstanding the
foregoing, the other Party, in its reasonable discretion, may reject the
addition of any such Affiliate by delivering written notice thereof prior to the
expiration of the thirty-day period.

                                  ARTICLE III

                                    CHARGES
                                    -------

         Each Home Carrier whose customers (including the customers of its
resellers) receive Service from a Serving Carrier as Authorized Roamers under
this Agreement shall pay to the Serving Carrier who provided such Service one
hundred percent (100%) of the Serving Carrier's

                                       3
<PAGE>

charges for CMRS and one hundred percent (100%) of the toll charges set forth in
Exhibit A. The amount of the charges for the use of each Serving Carrier's
Service are set forth in Exhibit A attached to this Agreement.

                                   ARTICLE IV

                             EXCHANGE OF INFORMATION
                             -----------------------

         4.1 Exhibit B to this Agreement is a list furnished by the respective
Parties of the valid NPA/NXX combinations used by their respective customers.
These combinations shall be accepted by the other Party. Each NPA/NXX
combination is and shall be within the entire line range (0000-9999), or a
specified portion thereof. The minimum line range to be exchanged by the Parties
shall be 1,000 line numbers. Each Party shall be responsible for all billings
otherwise properly made under this Agreement to any number listed by such Party
within the range or ranges specified by it in Exhibit B. Additions, deletions,
or changes to NPA/NXX combinations and line number range(s) for the Home
Carrier's customers may be made upon at least fifteen (15) days prior written
notice to the Serving Carrier. Such notice shall be in the form attached as
Exhibit B to this Agreement and shall include the requested effective date for
the addition, deletion or change.

         4.2 Each Party shall provide to each other Party a list of MINs (from
among those within the NPA/NXX combination(s) identified pursuant to Section 4.1
hereof) and ESNs (of the telephones to which the other Party is not authorized
to provide Service pursuant to this Agreement), which shall be entered into the
Industry Negative File. The approved CIBERNET Negative File Guidelines, as
amended from time to time, shall be the governing criteria for the Parties.
Thereafter, from time to time, as agreed by the Parties, each Party shall notify
each other Party of all additions to, and deletions from, these lists for the
customers of that particular Party. Such notifications shall be made during
normal business hours of the Party being notified by facsimile or by telephone
with a written confirmation and shall be effective one (1) hour after receipt.

         4.3 Each Party hereby agrees to indemnify each and all of the other
Parties, together with their partners and any and all of their officers,
directors, employees, agents and/or affiliates, against, and hold them harmless
from, any and all claims, suits, demands, losses and expenses, including
reasonable attorneys' fees and disbursements, which may result in any way
whatsoever from the indemnified Party's denial of Roamer or local Service to any
NPA/NXX and MIN combination which has been listed by the indemnifying Party as
not being authorized to receive Service; provided that (i) the person seeking
indemnification (the "Indemnified Person") provides notice of such claim
promptly after its discovery to the Party from which indemnification is sought
(the "Indemnifying Person") and in any event the Indemnifying Person will be
released from any obligation hereunder to the extent it is prejudiced by any
delay in the delivery of such notice, (ii) the Indemnifying Person shall have
the right to assume the defense of such claim, (iii) the Indemnified Person
shall provide such reasonable assistance and cooperation in the defense of such
claim as is requested by the Indemnifying Person, and (iv) the Indemnified

                                       4
<PAGE>

Person shall not settle or compromise any such claim without the prior written
consent of the Indemnifying Person.

         4.4 Each Party, due to system limitations, may purge or delete numbers
of its customers from the lists as referred to in Section 4.2 hereof, but in all
such cases, such purging or deletion must be done in accordance with the
approved CIBERNET Negative File Guidelines. If purging or deletion of numbers is
done prior to the time periods established by such Guidelines, or through
procedures not otherwise set forth, in the approved CIBERNET Negative File
Guidelines, the Party implementing the purge or deletion will assume financial
liability for any charges incurred by those numbers. All purges or deletions
made pursuant to this Section 4.4 shall be given through the Parties and shall
be in the form mutually agreed upon by the Parties and effective as of the time
established by the approved CIBERNET Negative File Guidelines (unless otherwise
modified by mutual agreement of the Parties.)

         4.5 Upon the implementation of wireless number portability in any
portion of either Party's system, the Parties shall cooperate in establishing an
alternative method for exchanging ESN, MIN, and NPA/NXX information required to
permit roaming by the other Party's customers in their respective systems.

                                   ARTICLE V

                                     FRAUD
                                     -----

         5.1 The Parties will cooperate and, as necessary, supplement this
Agreement in order to minimize fraudulent or other unauthorized use of their
systems. If any Party reasonably decides that, in its sole judgment, despite due
diligence and cooperation pursuant to the preceding sentence, fraudulent or
other unauthorized use has reached an unacceptable level of financial loss and
is not readily remediable, such Party may suspend the use of applicable NPA/NXX
combinations, in whole or in part, pursuant to the terms of this Agreement.

         5.2 Each Party shall take reasonable actions to control fraudulent
Roamer usage, including without limitation using either (i) a positive
validation/verification ("PV') system provided by a mutually agreed upon
validation/verification service under which the ESN, MIN and/or NPA/NXX used in
a call in the Serving Carrier's system is compared against a list of Authorized
Roamers or (ii) SS-7 connections through a network of carriers. The Parties
shall work together in good faith to designate and implement a mutually
agreeable PV system and enhancements thereto or alternative systems. The Home
Carrier shall have no responsibility or liability for calls completed by a
Serving Carrier without obtaining positive validation/verification as required
herein.

         5.3 In addition to other procedures set forth in this Agreement, a Home
Carrier may notify a Serving Carrier by facsimile, with written confirmation,
that certain NPA/NXX combinations are not to receive Service. Any calls
completed using such NPA/NXX combinations made one full business day or more
after such notice has been given shall be the sole responsibility of the Serving
Carrier and the Home Carrier shall not be charged any amount for such calls.

                                       5
<PAGE>

         5.4 Each Serving Carrier shall use commercially reasonable efforts to
provide each Home Carrier with real-time visibility of call detail records
delivered through a network compatible with AT&T's network. Such information
shall be delivered within one hour of the applicable call. In the event that the
Serving Carrier provides such a real-time visibility system, the Serving Carrier
shall not be liable in any event for a temporary failure of the system unless
the Serving Carrier has been notified of such failure by the Home Carrier and
the Serving Carrier does not take commercially reasonable steps to remedy the
failure. If the Serving Carrier has been so notified and has so failed to take
such commercially reasonable steps, the Serving Carrier shall be liable for all
unauthorized usage attributed to Home Carrier's subscribers during the period
from the time Serving Carrier was notified of the problem to the time that the
problem has been resolved to the reasonable satisfaction of the Home Carrier.

         5.5 For purposes of notification under this Article V, the following
addresses and facsimile numbers shall be used:

                  If to AT&T: AT&T Wireless Services, Inc.
                           5000 Carillon Point
                           Kirkland, WA 98033
                           Attn: Billing and ICS Operations
                           Tel. No. 425-827-4500
                           Fax No. 425-828-1390

                  If to Company: TeleCorp PCS, Inc.
                            ____________________________
                            ____________________________
                            ____________________________
                            Attn: Product Development - Roaming
                            Tel. No. 202-261-4751
                            Fax No. 202-833-4882

         Each Party may change the names, addresses and numbers set forth above
by providing notice to the other Party as provided in Article XIII below.

                                  ARTICLE VI

                                    BILLING
                                    -------

         6.1 Each Home Carrier shall be responsible for billing to, and
collecting from, its own customers all charges that are incurred by such
customers as a result of service provided to them as Authorized Roamers by the
Serving Carrier. The Home Carrier shall also be responsible for billing its
customers for, and remitting to, the Federal Government all federal excise tax
that may be due in connection with the service being billed by it to its
customers. While the Serving Carrier will be responsible for the computation and
remittance of all state and local taxes, each Home Carrier shall be liable to
the Serving Carrier for all such state and local taxes remitted by

                                       6
<PAGE>

the Serving Carrier, for Authorized Roamers regardless of whether these amounts
are paid to the Home Carrier by its customers.

         6.2 Each Serving Carrier who provides Service to an Authorized Roamer
pursuant to this Agreement shall forward Roamer billing information, within five
business days of the call date, in accordance with the procedures and standards
set forth in the CIBER Record to the Home Carrier's Authorized Receipt Point.
CIBER Type 50 and CIBER Type 70 records shall not be accepted without mutual
signed agreement and if such mutual agreement is reached it will be attached to
this Agreement. Any future revisions of the CIBER Record or additional record
types must be mutually agreed upon before implementation. In the event the
parties use the CIBERNET Net Settlement Program, or alternative settlement
program such information must be in a format in compliance with the CIBER Record
requirements or agreed upon format.

         6.3 Where the Authorized Roamer billing information required to be
provided by the Serving Carrier in accordance with Section 6.2 above is not in
accordance with the CIBER Record, the Home Carrier may return a record to the
Serving Carrier as provided in the CIBER Record. Returning the defective record
will be in accordance with CIBER Record established procedures. The Serving
Carrier may correct the defective record and return it to the Home Carrier for
billing, provided that the time period from the date of the Service call at
issue to the receipt of the corrected record does not exceed sixty (60) days.

         6.4 No credit for insufficient data or defective records shall be
permitted except as provided in Section 6.3 above, unless mutually agreed upon
by both Parties.

         6.5 Each Home Carrier may at its discretion perform any necessary edits
at its Clearinghouse on incollect or outcollect call records to ensure
compliance with the terms of this Agreement.

                                  ARTICLE VII

                                  SETTLEMENT
                                  ----------

         7.1 Each Party will settle its accounts with the other Parties on the
basis of billing information received as described in this Article VII. In the
event both Parties use a net financial settlement procedure, the Parties shall
not submit a paper invoice but will make payments in accordance with such net
financial settlement procedures provided that the Parties may submit call
records for payment that relate to calls made more than sixty (60) days from the
date of the call if such call was the subject of a dispute or investigation
regarding fraudulent or unauthorized use.

         7.2 If an incorrect roaming rate is charged by the Serving Carrier to
the Home Carrier, the Serving Carrier shall refund all amounts in excess of the
contract rate back to the Home Carrier within forty-five (45) days of
notification by the Home Carrier. Each carrier shall have ninety (90) days from
the end of the settlement period to invoice for amounts in excess of the
contract rate. The Home Carrier will send a collection letter within sixty (60)
days of the invoice date, within ninety (90) days of the invoice date, and
within one hundred (120) days of the invoice

                                       7
<PAGE>

date. If the invoice remains unpaid after one hundred twenty (120) days from the
original invoice date, the Home Carrier may withhold the amounts from the
CIBERNET Net Settlement Program or alternative settlement program.

         7.3 In the event that either Party does not use a net financial
settlement procedure, the billing and payment for charges incurred under this
Agreement shall be as set forth below.

         7.3.1 The parties shall determine amounts owed to each other for
Service provided to Roamers in one-month periods with such period beginning on
the sixteenth day of each calendar month and ending on the fifteenth day of the
following month in which Service is provided. The end of this Period shall be
referred to as "Close of Billing."

         7.3.2 The Parties shall send each other an invoice for Services used
under this Agreement within fifteen (15) days after the Close of Billing.

         7.3.3 Each invoice shall contain the following information.

         (a)      Billing period used by Serving Carrier

         (b)      Batch sequence number

         (c)      Serving and Home Carrier System Identification Number

         (d)      Air Service charges

         (e)      Total toll charges (both intrastate and interstate)

         (f)      All other charges and credits

         (g)      Total taxes

         (h)      Total charges

         7.3.4 Payment on such invoices shall be made in the form of a check or
a wire transfer which must be received by the invoicing party within thirty (30)
days from the date of the invoice. Late payments shall be charged with a late
payment fee of one and one half percent (1.5%) of the outstanding balance for
each thirty-day period (or portion thereof) that such payments are late.

         7.3.5 Each Party may offset the amount owed to the other Party under
this Agreement and a single payment of the balance to the Party entitled to
receive such balance shall be made.

         7.4 If the Serving Carrier provides pre-call validation of the Home
Carrier's customers, the Home Carrier agrees to implement Negative File
Suppression at the Clearinghouse and the CIBERNET Negative File Guidelines and
procedures do not apply.

                                       8
<PAGE>

                                  ARTICLE VIII

                      AUTOMATIC CALL DELIVERY AND HAND-OFF
                      ------------------------------------

         8.1 Each Party shall, as Serving Carrier, provide for automatic call
delivery for customers of the other Party who are Roamers in the Serving
Carrier's system. To this end, each Party shall continuously provide the
hardware, software and transmission facilities required for such call delivery
either directly between the systems of the Parties or indirectly through a
separate network of wireless communications carriers. The hardware, software and
transmission facilities provided by each Party hereunder shall at all times be
operated and maintained to provide the most efficient level of service that is
technically feasible and commercially reasonable to minimize transmission errors
and Service interruptions.

         8.2 If the Parties have implemented linking facilities pursuant to
Section 8.3, the Serving Carrier shall automatically hand-off to the Home
Carrier, and as requested shall automatically accept hand-off from the Home
Carrier in order to provide Service as specified in Article II, calls to or from
a customer of the Home Carrier in accordance with the hand-off procedures
established for such linking facilities. To this end, each Party shall
continuously provide the hardware, software and transmission facilities required
for such call hand-off either directly between the systems of such Home and
Serving Carrier or indirectly through a separate network of wireless
communications carriers. The hardware, software and transmission facilities
provided by each Party hereunder shall at all times be operated and maintained
to provide the most efficient level of service that is technically feasible and
commercially reasonable to minimize transmission errors and Service
interruption.

         8.3 The Parties will work together to evaluate the economic advantage
of various switch linking options to interconnect and facilitate networking of
the Parties' respective systems as required by this Agreement. Should the
Parties agree to install and maintain linking facilities, the cost of the
linking facilities shall be allocated pursuant to the following provisions:

               8.3.1 AT&T and Company will each pay one-half of the equipment
costs for the establishment of microwave facilities to link the Parties'
respective systems for the purposes of automatic call delivery and automatic
call hand-off. Each Party is solely responsible for the costs of preparing its
own facilities for the system link.

               8.3.2 Equipment costs for the establishment of a landline link
(T-1) to link the Parties' respective systems together for these purposes shall
be split between the Parties as follows:

         (a)             AT&T and Company shall each pay one-half of the cost
for the installation, use, modification, or discontinuance of the linking
facilities. Each Party is solely responsible for all costs to prepare its own
facilities for the link between the systems.

         (b)             For ease of administration, AT&T will order and be the
customer of record ("COR") for such facilities. Company will reimburse AT&T
monthly for its share of the

                                       9
<PAGE>

recurring costs of such facilities. The COR shall be responsible for invoicing
the other Party for its share of the costs, with payment due within 30 days of
receipt of the invoice.

               8.3.3 The Parties agree that this Section 8.3 relates only to
those costs necessary to establish the referenced facilities. This section is
not applicable to the allocation of costs with respect to the provision of
Service for each Parties' customers.

         8.4 The Parties acknowledge that they do not currently have the
technical systems in place to allocate charges for cellular service provided by
a Carrier when a customer's call is handed off from one system to another. The
Parties agree that the revenues and costs for a call belong to the Party whose
system operates the originating cell site (the "Bill and Keep System").

                                   ARTICLE IX

                 TERM, TERMINATION, AND SUSPENSION OF AGREEMENT
                 ----------------------------------------------

         9.1 This Agreement shall have a term commencing on the date first
written above and continuing for a period of 20 years. Thereafter, this
Agreement shall renew automatically on a year-to-year basis unless either party
terminates the Agreement by written notice to the other party given at least 90
days prior to the conclusion of the original or any subsequent term. After ten
years, the Agreement may be terminated by either party at any time upon 90 days
prior written notice.

         9.2 This Agreement may be terminated or suspended by either Party
immediately upon written notice to the other of a Default (as defined in Section
10.1) by the other Party. In addition, either Party may suspend this Agreement
immediately upon written notice to the other Party of the existence of a breach
of this Agreement, whether or not such breach constitutes a Default, which
materially affects the Service being provided to Customers of the non-breaching
Party. While any suspension of this Agreement, whether in part or in whole, is
in effect, the Parties shall work together to resolve as expeditiously as
possible the difficulty that caused the suspension. At such time as the Party
originally giving notice of suspension concludes that the problem causing the
suspension has been resolved, that Party shall give to the other written notice
to this effect. This Agreement shall resume in full effect within five (5)
business days after the Parties have mutually agreed that the problem has been
resolved.

         9.3 The Parties shall cooperate to limit the extent and effect of any
suspension of this Agreement to what is reasonably required to address the cause
of the suspension.

         9.4 In the event that a Party transfers control of an Affiliate listed
in Schedule 1 or Schedule 2, as the case may be, the Party shall provide at
least four (4) months' prior written notice to the other Party and upon such
transfer such Affiliate shall be deleted from the appropriate Schedule.

         The termination or suspension of this Agreement shall not affect the
rights and liabilities of the Parties under this Agreement with respect to all
Authorized Roamer charges incurred prior to the effective date of such
termination or suspension.

                                       10
<PAGE>

                                   ARTICLE X

                                    DEFAULT
                                    -------

         10.1   A Party will be in "Default" under this Agreement upon the
occurrence of any of the following events:

         10.1.1 Material breach of any material term of this Agreement, if such
breach shall continue for thirty (30) days after receipt of written notice
thereof from the nonbreaching Party;

         10.1.2 Voluntary liquidation or dissolution or the approval by the
management or owners of a Party of any plan or arrangement for the voluntary
liquidation or dissolution of the Party;

         10.1.3 A final order by the Federal Communications Commission ("FCC")
revoking or denying renewal of CMRS licenses or permits granted to such Party
which, individually or in the aggregate, are material to the business of such
Party; or

         10.1.4 Such Party (i) filing pursuant to a statute of the United States
or of any state, a petition for bankruptcy or insolvency or for reorganization
or for the appointment of a receiver or trustee for all or a portion of such
Party's property, (ii) has filed against it, pursuant to a statute of the United
States or of any state, a petition for bankruptcy or insolvency or for
reorganization or for the appointment of a receiver or trustee for all or a
portion of such Party's property, provided that within sixty (60) days after the
filing of any such petition such Party fails to obtain a discharge thereof, or
(iii) making an assignment for the benefit of creditors or petitioning for, or
voluntarily entering into, an arrangement of similar nature, and provided that
such filing, petition, or appointment is still continuing.

         10.2   All claims and disputes relating in any way to the performance,
interpretation, validity, or breach of this Agreement, including but not limited
to a claim based on or arising from an alleged tort, shall be resolved as
provided in this Section 10.2. It is the intent of the Parties that any
disagreements be resolved amicably to the greatest extent possible.

         10.2.1 If a disagreement cannot be resolved by the representatives of
the Parties with day-to-day responsibility for this Agreement, such matter shall
be referred to an executive officer of each of the Parties. The executive
officers shall conduct face-to-face negotiations at a neutral location or such
other location as shall be mutually agreed upon. If these representatives are
unable to resolve the dispute within ten business days after either Party
requests the involvement of the executive officers, then either Party may, but
is not required to, refer the matter to mediation or arbitration, as applicable
in accordance with Sections 10.2.2 and 10.2.3.

         10.2.2 In any case where the amount claimed or at issue is Five Hundred
Thousand Dollars ($500,000) or more and the Parties are unsuccessful in
resolving the disagreement, the Parties agree to submit the disagreement to
non-binding mediation upon written notification by either Party. The Parties
shall mutually select an independent mediator experienced in telecommunications
system disputes. The specific format for the mediation shall be left to the
discretion of the mediator. If mediation does not result in resolution of the
disagreement within

                                       11
<PAGE>

thirty days of the initial request for mediation, then either Party may, but is
not required to, refer the matter to arbitration.

         10.2.3 Any disagreement not finally resolved in accordance with the
foregoing provisions of this Section 10.2 shall, upon written notice by either
Party to the other, be resolved by final and binding arbitration. Subject to
this Section 10.2.3, such arbitration shall be conducted through, and in
accordance with the rules of, JAMS/Endispute. A single neutral arbitrator shall
decide all disputes. Each Party shall bear its own expense with respect to the
arbitration, except that the costs of arbitration proceeding itself, including
the fees and expenses of the arbitrator, shall be shared equally by the Parties.
The arbitration shall take place in a neutral location selected by the
arbitrator. The arbitrator may permit discovery to the full extent permitted by
the Federal Rules of Civil Procedure or to such lesser extent as the arbitrator
determines is reasonable. The arbitrator shall be bound by and strictly enforce
the terms of this Agreement. The arbitrator shall make a good faith effort to
apply applicable law, but an arbitration decision and award shall not be subject
to review because of errors of law. The arbitrator shall have the sole authority
to resolve issues of the arbitrability of any disagreement, including the
applicability or running of any applicable statute of limitation. The arbitrator
shall not have power to award damages in connection with any dispute in excess
of actual compensatory damages nor to award punitive damages nor any damages
that are excluded under this Agreement and each party irrevocably waives any
claim thereto. The award of any arbitration shall be final, conclusive and
binding on the Parties. Judgment on the award may be entered in any court having
jurisdiction over the Party against which the award was made. Nothing contained
in this Section 10.2.3 shall be deemed to prevent either party from seeking any
interim equitable relief, such as a preliminary injunction or temporary
restraining order, pending the results of the arbitration. The United States
Arbitration Act and federal arbitration law shall govern the interpretation,
enforcement, and proceedings pursuant to the arbitration clause in this
Agreement.

                                   ARTICLE XI

                             SUCCESSORS AND ASSIGNS
                             ----------------------

         11.1   Neither Party may, directly or indirectly, sell, assign,
transfer, or convey its interest in this Agreement or any of its rights or
obligations hereunder, including any assignment or transfer occurring by
operation of law, without the written consent of both Parties, except that
(i) either Party may assign or delegate this Agreement or any of its rights or
obligations hereunder to an Affiliate of such Party without the consent of the
other Party, but such assignment or delegation will not relieve the Party of any
of its obligations hereunder and (ii) a Party may assign its rights and
obligations hereunder to an assignee of its Service license or permit issued by
the FCC, provided that such assignee expressly assumes, by written instrument
approved by the other Party, all of the obligations of such Party hereunder and
thereby becomes a Party hereunder. In no event will an assignment permitted
under this Section 11.1 without the consent of the other Party obligate a
Serving Carrier to provide Service to any customers of the assignee or any of
its Affiliates other than customers residing in the area in which the assignor
previously was licensed to provide Service.

                                       12
<PAGE>

         11.2   No person other than a Party to this Agreement shall acquire any
rights hereunder as a third-party beneficiary or otherwise by virtue of this
Agreement.

                                  ARTICLE XII

                NO PARTNERSHIP OR AGENCY RELATIONSHIP IS CREATED
                ------------------------------------------------

         Nothing contained in this Agreement shall constitute the Parties as
partners with one another or render any Party liable for any debts or
obligations of any other Party, nor shall any Party hereby be constituted the
agent of any other Party.

                                  ARTICLE XIII

                     NOTICES AND AUTHORIZED REPRESENTATIVES
                     --------------------------------------

         Unless otherwise provided herein, any notice, request, instruction or
other document to be given hereunder by any Party to the other shall be in
writing and delivered by hand delivery, certified mail (postage prepaid, return
receipt requested), facsimile, or overnight air delivery service, as follows:

                  If to AT&T, to:     AT&T Wireless Services, Inc.
                                      5000 Carillon Point
                                      Kirkland, WA 98033
                                      Attn: Intercarrier Services

                  with a copy to:     AT&T Wireless Services, Inc.
                                      5000 Carillon Point
                                      Kirkland, WA 98033
                                      Attn: Legal Department

                  If to Company, to:  TeleCorp PCS, Inc.
                                      1101 17th St., N.W.
                                      Suite 900
                                      Washington, D.C. 20036
                                      Attn: Product Development--Roaming

                  with a copy to:     TeleCorp PCS, Inc.
                                      1101 17th St., N.W.
                                      Suite 900
                                      Washington, D.C. 20036
                                      Attn: Legal Department

or such other address as any Party may from time to time furnish to the other
Party by a notice given in accordance with the terms of this Section. All such
notices and communications shall be deemed to have been duly given at the time
delivered by hand, if personally delivered; three

                                       13
<PAGE>

business days after being deposited in the mail, if mailed; subject to
confirmation of receipt, on the date of receipt if received by 3:00 p.m., local
time, on any business day and otherwise on the next business day, if by
facsimile; and the next business day, if sent by overnight air delivery service.

                                  ARTICLE XIV

                                 CONFIDENTIALITY
                                 ---------------

         14.1   Each Party shall, and shall cause each of its Affiliates and
each of its and their employees, agents, and contractors, to keep confidential
and not use for any purpose, except as contemplated by this Agreement, any and
all information and know-how provided to it by the other Party which is
identified in writing as confidential ("Confidential Information").
Identification of information as confidential shall, in the case of information
delivered in tangible form, appear on at least the face or first page of such
information and, in the case of information communicated verbally, be given
verbally contemporaneously with the delivery of the information and confirmed in
writing within five business days thereafter. Notwithstanding the foregoing, the
following information shall be treated as Confidential Information without any
further identification as such: (i) The terms, but not including the mere
existence, of this Agreement; and (ii) all information exchanged pursuant to
Article IV.

         14.2   Notwithstanding Section 14.1, a Party shall have no obligation
to keep confidential any information that (a) was rightfully in the receiving
Party's possession before receipt from the disclosing Party, (b) is or becomes a
matter of public knowledge without violation of this Agreement by the receiving
Party, (c) is received by the receiving Party from a third party in possession
of and, to the best of the receiving Party's knowledge, with a right to make an
unrestricted disclosure of such information, (d) is disclosed by the disclosing
Party to a third party without imposing a duty of confidentiality on the third
party, or (e) is independently developed by the receiving Party without the use
of any Confidential Information. In addition, a Party may disclose any
Confidential Information to the extent required by applicable law or regulation
or by order of a court or governmental agency; provided, that prior to
disclosure the Party shall use all reasonable efforts to notify the other Party
of such pending disclosure and shall provide any reasonable assistance requested
by the other Party to maintain the confidentiality of the information.

         14.3   The Parties agree that a Party will not have an adequate remedy
at law in the event of a disclosure or threatened disclosure of Confidential
Information in violation of this Article XIV. Accordingly, in such event, in
addition to any other remedies available at law or in equity, a Party shall be
entitled to specific enforcement of this Article XIV and to other injunctive and
equitable remedies against such breach without the posting of any bond.

         14.4   The obligations under this Article XIV shall survive the
termination of this Agreement for a period of three years.

                                       14
<PAGE>

                                   ARTICLE XV

                                  MISCELLANEOUS
                                  -------------

         15.1 The Parties agree to comply with, conform to, and abide by all
applicable and valid laws, regulations, rules and orders of all governmental
agencies and authorities, and agree that this Agreement is subject to such laws,
regulations, rules and orders. All references in this Agreement to such laws,
regulations, rules and orders include any successor provision. If any amendment
to or replacement of the same materially alters the benefits, fights, and duties
of the Parties hereunder, the Parties agree to negotiate in good faith an
amendment to this Agreement to restore the respective positions of the Parties
to substantially the same point as existed prior to such amendment or
replacement.

         15.2 The Parties agree to use their respective best, diligent, and good
faith efforts to fulfill all of their obligations under this Agreement. The
Parties recognize, however, that to effectuate all the purposes of this
Agreement, it may be necessary either to enter into future agreements or to
amend this Agreement, or both. In that event, the Parties agree to negotiate
with each other in good faith.

         15.3 This Agreement constitutes the full and complete agreement of the
Parties. Any prior agreements among the Parties with respect to this subject
matter are hereby superseded. This Agreement may not be amended, except by the
written consent of the Parties. Waiver of any breach of any provision of the
Agreement must be in writing signed by the Party waiving such breach or
provision and such waiver shall not be deemed to be a waiver of any preceding or
succeeding breach of the same or any other provision. The failure of a Party to
insist upon strict performance of any provision of this Agreement or any
obligation under this Agreement shall not be a waiver of such Party's right to
demand strict compliance therewith in the future.

         15.4 The headings in this Agreement are inserted for convenience and
identification only and are not intended to describe, interpret, define or limit
the scope, extent or intent of this Agreement or any provision thereof.

         15.5 This Agreement may be executed in counterparts, each of which
shall be deemed an original, but all of which together shall constitute one and
the same Agreement.

         15.6 This Agreement shall be construed in accordance with the laws of
the state of Washington without reference to the choice of law principles,
except as subject to the United States Arbitration Act and the Federal
Communications Act, each as amended.

         15.7 Neither Party shall be liable to the other Party for any special,
indirect, consequential or punitive damages.

         15.8 The Parties agree that they will not use the name, service marks
or trademarks of the other party or any of its Affiliates in any advertising,
publicity releases or sales presentations, without such Party's written consent.
Neither Party is licensed hereunder to conduct business under any logo,
trademark, service or trade name (or any derivative thereof) of the other Party.

                                       15
<PAGE>

         15.9 Neither of the Parties will be liable for nonperformance or
defective performance of its obligations under this Agreement to the extent and
for such periods of time as such nonperformance or defective performance is due
to reasons outside such Party's control, including, without limitation, acts of
God, war, acts of any governmental authority, riots, revolutions, fire, floods,
explosions, sabotage, nuclear incidents, lightning, weather, earthquakes,
storms, sinkholes, epidemics, strikes, or delays of suppliers or subcontractors
for the same causes. Neither Party shall be required to settle any labor dispute
or other third party dispute in any manner which is deemed by that Party to be
less than totally advantageous, in that Party's sole discretion.

         15.10 This Agreement is a non-exclusive arrangement between the
Parties. Nothing contained in this Agreement is intended or should be construed
to preclude or limit a Party from obtaining from or providing to a third party
Service of a type available or required to be provided under this Agreement.


         EXECUTED as of the date first written above.

         AT&T WIRELESS SERVICES, INC.            TELECORP PCS, INC.



          /s/ [SIGNATURE ILLEGIBLE]               /s/ Thomas Sullivan
         -----------------------------           ------------------------------
         By:                                     By:
              Vice President                          President
         -----------------------------           ------------------------------
         Its:                                    Its

                                       16
<PAGE>

                                                                      SCHEDULE 1


                                                                            AT&T


Schedule 1:  AT&T Wireless Services, Inc. and its Affiliates

<TABLE>
<CAPTION>

                       MKT# MARKET                       SID/BID                      OPERATING ENTITY/LICENSEE
                       -----------                       -------                      -------------------------
<S>                      <C>                             <C>                 <C>
ALASKA                   187  Anchorage                  251                 Cellular Alaska Partnership
                         316  Alaska - 2 RSA Wasilia     30921               AT&T Wireless Services of Alaska, Inc.

CALIFORNIA               215  Chico                      311                 AT&T Wireless Services of California, Inc.
                          74  Fresno                     153                 AT&T Wireless Services of California, Inc.
                         142  Modesto                    30857               AT&T Wireless Services of California, Inc.
                          73  Oxnard-Ventura             30065               AT&T Wireless Services of California, Inc.
                         254  Redding                    513                 Redding Cellular Partnership
                          35  Sacramento                 129                 AT&T Wireless Services of California, Inc.
                         107  Stockton                   233                 AT&T Wireless Services of California, Inc.
                         150  Visalia                    30863               Visalia Cellular Telephone Company
                         274  Yuba City                  30861               Yuba City Cellular Telephone Company
                         124  Santa Barbara              531                 Santa Barbara Cellular Systems, Ltd.
                         338  California - 3 RSA         233                 AT&T Wireless Services of California, Inc.
                         343  California - 8 RSA         30859               AT&T Wireless Services of California, Inc.
                         347  California - 12 RSA        153                 AT&T Wireless Services of California, Inc.

CONNECTICUT              357  CT-1 (Litchfield)          1101                Litchfield Acquisitions Corporation

COLORADO                 117  Colorado Springs           30743               AT&T Wireless Services of Colorado, Inc.
                          19  Denver                     45                  AT&T Wireless Services of Colorado, Inc.
                         210  Fort Collins               30747               Fort Collins-Loveland Cellular Telephone Co.
                         243  Greeley                    30751               Greeley Cellular Telephone Company
                         350  Colorado - 3 RSA           30989               AT&T Wireless Services of Colorado, Inc.
                              (Vall/Grand Junction)

FLORIDA                  211  Bradenton                  30853               Bradenton Cellular Partnership
                         146  Daytona Beach              325                 AT&T Wireless Services of Florida, Inc.
                          51  Jacksonville               76                  AT&T Wireless Services of Florida, Inc.
                         137  Melbourne                  30851               Melbourne Cellular Telephone Company
                          12  Miami, Key West            37, 30277           AT&T Wireless Services of Florida, Inc.
                         245  Ocala                      30063               Ocala Cellular Telephone Company, Inc.
                          60  Orlando                    175                 AT&T Wireless Services of Florida, Inc.
                         167  Sarasota                   30849               Sarasota Cellular Telephone Company, Inc.
                          22  Tampa                      30283               AT&T Wireless Services of Florida, Inc.
                         363  FL-4 Citrus - Brooksville  30251               AT&T Wireless Services of Florida, Inc.
                         361  FL-2 Glades                37                  Talcom, Inc.
                         208  Fort Pierce, Vero Beach,   37, 30281, 30309    AT&T Wireless Services of Florida, Inc.
                              Sebastian
                         114  Lakeland                   37                  AT&T Wireless Services of Florida, Inc.
                          72  West Palm Beach            37                  AT&T Wireless Services of Florida, Inc.
                         370  FL-11                                          AT&T Wireless Services of Florida, Inc.
                         364  FL-5 Flagler (A2)                              Talcom, Inc.

HAWAII                   386  Hawaii - 2 RSA (Maui)      1159                AT&T Wireless Services of Hawaii, Inc.
</TABLE>

                                       17
<PAGE>

<TABLE>

<S>                      <C>                             <C>                 <C>
IDAHO                    190  Boise                      289                 Boise City Cellular Partnership
                         391  Idaho - 4 RSA (Elmore)     30393               AT&T Wireless Services of Idaho, Inc.
LOUISIANA                219  Monroe                     463                 Monroe Cellular, Inc.
                         100  Shreveport                 229                 First Cellular Group of Shreveport, Inc.
                         455  LA - 2 A2                                      Monroe Cellular, Inc.
                         456  LA - 3 A3                                      First Cellular Group of Shreveport, Inc.

MINNESOTA                 15  Minneapolis                23                  AT&T Wireless Services of Minnesota, Inc.
                         288  Rochester, Austin          30233, 262321       Rochester CellTelCo
                         198  St. Cloud                  30235               St. Cloud Cellular Telephone Company, Inc.

MISSOURI                 163  Springfield                559                 MC Cellular Corporation, Inc.
                         239  Joplin                     30069               MC Cellular Corporation, Inc.
                         517  Missouri - 14 RSA (Monet)  30071               Auburn Television Group, Inc.

NEVADA                    93  Las Vegas                  211                 AT&T Wireless Services of Nevada, Inc.
                         171  Reno                       515                 Reno Cellular Telephone Company
                         545  Nevada - 3 RSA (Carson     30855               AT&T Wireless Services of Nevada, Inc.
                              City)

NEW JERSEY               550  Hunterdon (NJ-1)           1487                NJ Cellular, Inc.

NEW YORK                   1  New York                   25                  Cellular Telephone Company

OKLAHOMA                 260  Lawton, OK                 425                 OK-5 Cellular, Inc.
                          45  Oklahoma City              169                 Midwest Cellular Telephone Ltd Ptsp
                          57  Tulsa                      111                 AT&T Wireless Services of Tulsa, Inc.
                         598  OK-3 Grant                 30919               OK-3 Cellular, Inc.
                         599  OK-4 Nowata                                    AT&T Wireless Services, Inc.
                         600  OK-5                       1585                OK-5 Cellular, Inc.

OHIO                     199  Steubenville/Weirton       30317               McLang Cellular, Inc.
                         199  Wintersville, St.          30501, 30889        McLang Cellular, Inc.
                              Clairsville

OREGON                   135  Eugene                     61                  AT&T Wireless Services of Oregon, Inc.
                         229  Medford                    30867               Medford Cellular Telephone Company, Inc.
                          30  Portland                   61                  AT&T Wireless Services of Oregon, Inc.
                         148  Salem                      30869               Salem Cellular Telephone Company
                         607  Oregon 2 - Madras          31011               Pueblo Cellular Communications, Inc.
                         607  Oregon 2 - The Dallas      30293               Pueblo Cellular Communications, Inc.
                         607  Hood River                 1601                Pueblo Cellular Communications, Inc.

PENNSYLVANIA             143  Johnstown, Somerset        30051, 30971        McCaw Communications of Johnstown, Inc.
                          13  Pittsburgh                 39                  Pittsburgh Cellular Telephone Company

TEXAS                      9  Dallas                     33                  Metroplex Telephone Company
                          75  Austin                     107                 Texas Cellular Telephone Company Ltd
                                                                             Partnership
                         662  TX-11 Cherokee             1711                Northeast Texas Cellular Telephone Company
                         287  Bryan-College Station      297                 Texas Cellular Telephone Company Ltd
                                                                             Partnership
                         657  TX-6 Jack                  30287               McCaw Communications of Gainesville, TX,
                                                                             Inc.
                         160  Killeen-Temple             409                 Texas Cellular Telephone Company Ltd
                                                                             Partnership
                         206  Longview-Marshall          30473               Longview Cellular, Inc.
                         661  TX-10 Navarro              1709, 30953, 30969  AT&T Wireless Services, Inc.
                         668  TX-17 Newton               1723                Texas Cellular Telephone Company Ltd
                                                                             Partnership
                          33  San Antonio                151                 AT&T Wireless Services of San Antonio, Inc.
                         292  Sherman-Denison            30635               Texas Cellular Telephone Company Ltd.
                                                                             Partnership
                         240  Texarkana                  30475               Texarkana Cellular Partnership
                         237  Tyler                      579                 Northeast Texas Cellular Telephone Company
</TABLE>

                                       18
<PAGE>

<TABLE>
<S>                      <C>                             <C>                 <C>
                         194  Waco                       587                 Texas Cellular Telephone Company Ltd
                                                                             Partnership
                         233  Wichita Falls, TX          595                 Wichita Falls CellTelCo
                         666  Lampassas/Johnson City     30773, 30843

UTAH                     159  Provo                      30871               Provo Cellular Telephone Company
                          39  Salt Lake City             91                  AT&T Wireless Services of Utah, Inc.
                         673  Utah - 1 RSA (Box Elder)   91                  AT&T Wireless Services of Utah, Inc.

WASHINGTON               270  Bellingham                 30877               Bellingham Cellular Partnership
                         212  Bremerton                  30873               Bremerton Cellular Telephone Company
                         242  Olympia                    30875               Olympia Cellular Telephone Company, Inc.
                          20  Seattle                    47                  AT&T Wireless Services of Washington, Inc.
                          20  Kirkland                   26345               AT&T Wireless Services of Washington, Inc.
                         109  Spokane                    231                 Spokane Cellular Telephone Company
                          82  Tacoma                     47                  AT&T Wireless Services of Washington, Inc.
                         191  Yakima                     30227               Yakima Cellular Telephone Company
                         699  Skamania                                       Pueblo Cellular Communications, Inc.
                         693  WA-1 Calallam                                  AT&T Wireless Services of Washington, Inc.
                         698  WA-6 Longview WA           30243               AT&T Wireless Services of Washington, Inc.
                         698  WA-6 Chehalls WA           30837               AT&T Wireless Services of Washington, Inc.
                         697  WA-5 Ellensburg/Moses      30231               AT&T Wireless Services of Washington, Inc.
                              Lakes
                         214  Tri Cities WA              30229               AT&T Wireless Services of Washington, Inc.

WEST VA.                 178  Wheeling                   30059               Wheeling Cellular Telephone Company
</TABLE>

                                       19
<PAGE>

<TABLE>
<CAPTION>

                       MKT# MARKET                       SID/BID                      OPERATING ENTITY/LICENSEE
                       -----------                       -------                      -------------------------
<S>                    <C>                               <C>                 <C>
AT&T Wireless TDMA Digital PCS Markets - 1900 MHz Properties
- ------------------------------------------------------------
ARKANSAS                PCS   Little Rock                MTA 40              AT&T WIRELESS PCS, INC.
ARIZONA                 PCS   Phoenix                    4169                AT&T WIRELESS PCS, INC.
ILLINOIS                PCS   Chicago                    411                 AT&T WIRELESS PCS, INC.
NEBRASKA                PCS   Omaha                      4165                AT&T WIRELESS PCS, INC.
VIRGINIA                PCS   Richmond                   4177                AT&T WIRELESS PCS, INC.
WA DC                   PCS   Washington - Baltimore     4196                AT&T WIRELESS PCS, INC.
PUERTO RICO             PCS   Puerto Rico                4175                AT&T WIRELESS PCS, INC.
NEW MEXICO              PCS   El Paso/Albuquerque        4128                AT&T WIRELESS PCS, INC.
PENNSYLVANIA            PCS   Philadelphia               4167                AT&T WIRELESS PCS OF PHILADELPHIA, LLC
TENNESSEE               PCS   Memphis/Jackson            MTA:28              AT&T WIRELESS PCS, INC.
TENNESSEE               PCS   Knoxville                  4141                AT&T WIRELESS PCS, INC.
NORTH CAROLINA          PCS   Charlotte/Greensboro       4109                AT&T WIRELESS PCS, INC.
NORTH CAROLINA          PCS   Greensboro                 40117               AT&T WIRELESS PCS, INC.
SOUTH CAROLINA          PCS   Rock Hill                  40119               AT&T WIRELESS PCS, INC.
OHIO                    PCS   Cincinnati/Dayton          4113                AT&T WIRELESS PCS, INC.
OHIO                    PCS   Cleveland                  4116                AT&T WIRELESS PCS OF CLEVELAND, LLC
OHIO                    PCS   Columbus                   4117                AT&T WIRELESS PCS, INC.
NEW YORK                PCS   Buffalo/Rochester          4108                AT&T WIRELESS PCS, INC.
MISSOURI                PCS   St. Louis                  4189                AT&T WIRELESS PCS, INC.
KENTUCKY                PCS   Louisville/Lexington       4147                AT&T WIRELESS PCS, INC.
KENTUCKY                PCS   Nashville                  4158                AT&T WIRELESS PCS, INC.
MASSACHUSETTS           PCS   Boston/Providence          4105                AT&T WIRELESS PCS, INC.
MICHIGAN                PCS   Detroit                    4125                AT&T WIRELESS PCS, INC.
GEORGIA                 PCS   Atlanta                    4101                AT&T WIRELESS PCS, INC.
</TABLE>

                                       20
<PAGE>

                                   Schedule 1

<TABLE>
<CAPTION>

    AWS KANSAS CITY JOINT VENTURE MARKETS
<S>                     <C>                              <C>          <C>
Kansas                  179   Topeka                     30057        Airtouch Cellular of Kansas City, Inc.
Kansas                  89    Wichita                    165          AT&T Wireless Services, Inc.
Kansas                  24    Kansas City                59           CMT Partners
Kansas                  301   Lawrence                   30049        CMT Partners
Missouri                275   St. Joseph                 30055        St. Joseph CellTelCo


    Schedule 1 (AWS 850 Managed Markets)

<CAPTION>

                       MKT# MARKET                       SID/BID               OPERATING ENTITY/LICENSEE
                       -----------                       -------               -------------------------
<S>                    <C>                               <C>          <C>
Colorado               351   Canon City, CO              1089         CellUDyne
Idaho                  388   Coeur D'Alene, ID           1163         North American Cell
Maryland               467   Deep Creek, MD              1321         MD-1 LP
Oregon                 606   Newburg, OR                 30249        Crystal Communications Inc.
Oregon                 606   Astoria, OR                 30409        Crystal Communications Inc.
Texas                  658   Greenville, TX              1703         KO Communications
Texas                  666   San Saba, TX                1973         Concho Cellular
California             345   Sierra                      30237        Data Cellular Systems
California             346   El Dorado, CA               30239        Cellular Pacific
California             340   San Luis Obispo, CA         30425        C-1 San Luis Obispo
Louisiana              454   Ruston, LA                  30573        LA-1 Joint Venture
Utah                   674   Utah 2 (Morgan Park City)   30363        Omega
</TABLE>

                                       21
<PAGE>

                                   SCHEDULE 2

                        Affiliates of TELECORP PCS, INC.


TeleCorp Communications, Inc.

                                       22
<PAGE>

                                    EXHIBIT A

                                 SERVICE CHARGES


Airtime Rates:
- --------------

AWS Boston and TeleCorp BTAs within the Boston MTA, Boston (Rockingham, Stafford
Counties NH, Hyannis, MA., Manchester, NH. and Worcester, MA

7/17/1998 through 7/16/1999                  $0.10 per minute or partial minute.
7/17/1999 through the remaining term of this Agreement:

TeleCorp and AWS agree that the airtime rates charged between the parties shall
be the lower of (a) the actual AWS average retail rate charged by AWS to its
Boston customers roaming into TeleCorp markets located within the Boston MTA
(but not less than the actual AWS average retail rate charged by AWS to its
Boston customers in the AWS Boston Market) or (b) $0.10 per minute.

AWS and remaining TeleCorp BTA's

7/17/1998 through 12/31/1999                 $0.25 per minute or partial minute.
1/1/2000 through 12/31/2000                  $0.20 per minute or partial minute.
1/1/2001 through 12/31/2001                  $0.15 per minute or partial minute.
1/1/2002 through 12/31/2002                  $0.10 per minute or partial minute.


7/17/2002 through the remaining term of this Agreement

TeleCorp and AWS agree that the airtime rates charged between the parties shall
be the lower of (a) the actual AWS average retail rates charged by AWS to its
customers roaming into TeleCorp markets (but not less than the actual AWS
average retail rate charged by AWS to its customers) or (b) $0.10 per minute.

Neither Party will charge for incomplete calls, busy calls, 611 calls, feature
activations or interconnect fees. Airtime rates are charged in full minute
increments with each partial minute rounded to the next full minute.

Toll Rates:
- -----------

$0.05 per InterLata minute and $0.02 per Intralata minute.

International toll rates shall be no more than AT&T tariff rates.

TeleCorp, Inc. and AWS agree to offer a toll free calling area within their
respective cellular areas which reasonably approximates, or is larger than, the
toll free area offered by the landline telephone company in the area.

Default rates apply to markets managed by AT&T Wireless Services on behalf of
other carriers as shown on Schedule 1.

                                       23
<PAGE>

                                    EXHIBIT B

                                 Technical Data


         The following information is furnished by __________ to __________
pursuant to Section 4.1 of the Intercarrier Roamer Service Agreement between
AT&T Wireless Services, Inc. and _______________________, by
_____________________:

- --------------------------------------------------------------------------------
NPA/NXX        LINE RANGE             SID/BID               CITY START DATE
END DATE
- --------------------------------------------------------------------------------







By:________________________

Title:_____________________

Issue Date:________________

The effective date shall be

- ---------------------------

                                       24

<PAGE>

                                                                  EXHIBIT 10.6.2

                                AMENDMENT NO. 1

                                      TO

                     INTERCARRIER ROAMER SERVICE AGREEMENT


          AMENDMENT NO. 1 TO INTERCARRIER ROAMER SERVICE AGREEMENT ("Amendment
No.1") dated as of May ______, 1999, by and between AT&T Wireless Services,
Inc., on behalf of itself and its Affiliates listed on Schedule 1 to the IRSA
(as hereinafter defined) (individually and collectively, "AT&T"), and TeleCorp
PCS, Inc., on behalf of itself and its Affiliates listed on Schedule 2 to the
IRSA (individually and collectively, the "Company").  Certain capitalized terms
used herein and not otherwise defined have the meaning assigned to such term in
the IRSA.

          WHEREAS, AT&T and the Company are party to that certain Intercarrier
Roamer Service Agreement, dated as of July 17, 1998 (the "IRSA"), pursuant to
which each of AT&T and the Company made arrangements to facilitate the provision
of voice and voice-related mobile wireless radio telephone service to the
customers of the other Party, while such customers are using the wireless radio
telephone facilities of such Party, and set forth certain roaming charges in
respect thereof;

          WHEREAS, an Affiliate of AT&T and the Company are parties to that
certain Asset Purchase Agreement, dated as of May __, 1999 (the "Asset Purchase
Agreement"), pursuant to which, among other things, the Company has acquired
from such Affiliate of AT&T a portion of the Block A PCS License for the Puerto
Rico - U.S. Virgin Islands MTA (the "Puerto Rico MTA") owned by such Affiliate
of AT&T covering such market; and

          WHEREAS, pursuant to the Asset Purchase Agreement, it was agreed, and
AT&T and the Company desire, that Exhibit A to the IRSA be amended to set forth
the service charges with respect to the Puerto Rico MTA on terms set forth
therein.

          NOW THEREFORE, in consideration of the mutual promises and covenants
herein contained and for other good and valuable consideration the receipt and
sufficiency of which is hereby acknowledged, the parties hereby agree as
follows:

1.        Amendment.  Exhibit A to the IRSA is hereby amended and restated as
          ---------
     set forth in Schedule A hereto to provide, among other things, that service
     charges with respect to the Puerto Rico MTA shall be calculated as set
     forth on such Schedule A.
<PAGE>

2.        Severability of Provisions.  Any provision of this Amendment No. 1
          --------------------------
     which is prohibited or unenforceable in any jurisdiction shall, as to such
     jurisdiction, be ineffective to the extent of such prohibition or
     unenforceability without invalidating the remaining provisions hereof or
     affecting the validity or remaining provisions hereof or affecting the
     validity or enforceability of such provision in any other jurisdiction.

3.        Agreement to Remain in Full Force and Effect.  This Amendment No. 1
          --------------------------------------------
     shall be deemed to be an amendment to the IRSA. All references to the IRSA
     in any other agreements or documents shall on and after the date hereof be
     deemed to refer to the IRSA as amended hereby. Except as amended hereby,
     the IRSA shall remain in full force and effect and is hereby ratified,
     adopted and confirmed in all respects.

4.        Heading.  The headings in this Amendment No. 1 are inserted for
          -------
     convenience and identification only and are not intended to describe,
     interpret, define or limit the scope, extent or intent of this Amendment
     No. 1 or any provision thereof.

5.        Counterparts.  This Amendment No. 1 may be executed in counterparts,
          ------------
     each of which shall be deemed an original, but all of which together shall
     constitute one and the same instrument.

6.        Governing Law.  This Amendment No. 1 shall be construed in accordance
          -------------
     with the laws of the State of Washington without reference to the choice of
     law principles, except as subject to the United States Arbitration Act and
     the Federal Communications Act, each as amended.

                           [signature page follows]

                                      -2-
<PAGE>

Executed as of the date first written above.


AT&T WIRELESS SERVICES, INC.                 TELECORP PCS, INC.



By__________________________________         By_________________________________

Its_________________________________         Its________________________________

                                      -3-
<PAGE>

                                                                      Schedule A
                                                              to Amendment No. 1

                                   EXHIBIT A

         SERVICE CHARGES FOR ALL SERVICE OTHER THAN AS SET FORTH BELOW
               WITH RESPECT TO PUERTO RICO - U.S. VIRGIN ISLANDS


Airtime Rates:
- -------------


AWS Boston and Company BTAs within the Boston MTA, Boston (Rockingham, County
NH, Hyannis, MA, Manchester, NH, Worcester, MA).

7/17/1998 through 12/31/1999                  $0.10 per minute or partial minute
1/1/2000 through the remaining term of this Agreement:

The Company and AWS agree that the airtime rates charged between the parties
shall be the lower of (a) the actual AWS average retail rate charged by AWS to
its Boston customers roaming into Company markets located within the Boston MTA
(but not less than the actual AWS average retail rate charged by AWS to its
Boston customers in the AWS Boston Market), and (b) $0.10 per minute.

AWS and remaining TeleCorp BTA's

7/17/1998 through 12/31/1999                $0.25 per minute or partial minute.

1/1/2000 through 12/31/2000                 $0.20 per minute or partial minute.

1/1/2001 through 12/31/2001                 $0.15 per minute or partial minute.

1/1/2002 through 12/31/2002                 $0.10 per minute or partial minute.

1/1/2003 through the remaining term of this Agreement:

The Company and AWS agree that the airtime rates charged between the parties
shall be the lower of (a) the actual AWS average retail rates charged by AWS to
its customers roaming into Company markets (but not less than the actual AWS
average retail rate charged by AWS to its customers), and (b) $0.10 per minute.

                                      -4-
<PAGE>

Neither Party will charge for incomplete calls, busy calls, 611 calls, feature
activations or interconnect fees.  Airtime rates are charged in full minute
increments with each partial minute rounded to the next full minute.

Toll Rates:
- ----------

$0.05 per InterLata minute and $0.02 per IntraLata minute.

International toll rates shall be no more than AT&T tariff rates.

The Company and AWS agree to offer a toll free calling area within their
respective cellular areas which reasonably approximates, or is larger than, the
toll free area offered by the landline telephone company in the area.

Default rates apply to markets managed by AT&T Wireless Services on behalf of
the other carriers as shown on Schedule 1.

                                      -5-
<PAGE>

                            SERVICE CHARGES FOR THE
                     PUERTO RICO - U.S. VIRGIN ISLANDS MTA


     The following rates shall apply (I) to customers of AT&T while using the
wireless radio telephone facilities of the Company in the Puerto Rico - U.S.
Virgin Islands MTA, and (ii) to customers of the Company from the Puerto Rico -
U.S. Virgin Islands MTA while using the wireless radio telephone facilities of
AT&T.


Airtime Rates:
- -------------

The Company and AWS agree that the airtime rates charged between the parties
during the term of this Agreement with respect to the Puerto Rico - U.S. Virgin
Islands MTA as described above shall be the lower of (a) the actual AWS average
retail rate charged by AWS to its customers roaming into Company markets (but
not less than the actual AWS average retail rate charged by AWS to its
customers), and (b) $0.10 per minute.

AWS agrees that, commencing after the date the Company launches its PCS  service
in the Puerto Rico - U. S. Virgin Islands MTA (i.e., begins offering and
marketing its PCS services to subscribers in the Puerto Rico - U.S. Virgin
Islands MTA), the Company shall receive from AWS a minimum number of roaming
minutes per month, adjusted as hereinafter set forth for the percentage of Pops
in the Puerto Rico - U.S. Virgin Islands MTA where the Company's PCS system
shall have been constructed (the "Adjusted Minimum Number of Minutes").  The
Adjusted Minimum Number of Minutes (a) for each full month in 1999 after the
Company's launch of its PCS service in the Puerto Rico - U.S. Virgin Islands MTA
shall be equal to (x) 250,000, times (y) a fraction, the numerator of which is
the number of Pops covered by the Company's PCS system in the Puerto Rico - U.S.
Virgin Islands MTA on the first day of such month and the denominator of which
is 3,876,000 and (b) for each full month in 2000 shall be equal to the aggregate
number of roaming minutes received by the Company from AWS customers roaming in
the Puerto Rico - U.S. Virgin Islands in October, November and December of 1999
divided by six (6), times the fraction set forth in clause (y) hereof.  The
Company shall determine (I) the aggregate number of roaming minutes received by
the Company from AWS for each such full month in 1999 and 2000, respectively
("Aggregate Roaming Minutes"), and (II) the sum  of the monthly Adjusted Minimum
Number of Minutes for each such full month in 1999 and 2000, (the "Aggregate
Minimum Minutes").  In the event that the Aggregate Minimum Minutes in 1999 or
2000, as applicable, exceeds the Aggregate Roaming Minutes in 1999 or 2000, as
applicable, AWS shall pay to the Company an amount equal to such excess number
of minutes times the applicable Airtime Rate for such year determined as set
forth above.  The Company shall promptly after the end of each of the 1999 and
2000 years deliver to the AWS its

                                      -6-
<PAGE>

determination of any amounts due and owing by AWS pursuant to this provision
including reasonable supporting documentation for such calculation, such
documentation to include the Company's basis for determining the Adjusted
Minimum Number of Minutes for each applicable month. AWS shall make any required
payment pursuant to this provision within 30 days of the Company's delivery of
such determination, or if AWS objects to such determination, promptly after the
parties agree on any such amount due and payable by AWS.


Toll Rates:
- ----------

$0.05 per InterLata minute and $0.02 per IntraLata minute.  Calls between the
Puerto Rico - U.S. Virgin Islands MTA and any other part of the United States
shall be deemed to be InterLata toll calls.

International toll rates shall be no more than AT&T tariff rates.

The Company and AWS agree to offer a toll free calling area within their
respective cellular areas which reasonably approximates, or is larger than, the
toll free area offered by the landline telephone company in the area.

Default rates apply to markets managed by AT&T Wireless Services on behalf of
the other carriers as shown on Schedule 1.

                                      -7-

<PAGE>

                                                                  EXHIBIT 10.7.1

                                                                  EXECUTION COPY


                    ROAMING ADMINISTRATION SERVICE AGREEMENT


         ROAMING ADMINISTRATION SERVICE AGREEMENT ("Agreement") made this 17th
day of July, 1998, by and between AT&T Wireless Services, Inc. ("AWS"), a
Delaware corporation, with its principal place of business at 5000 Carillon
Point, Kirkland, WA 98033, and TeleCorp PCS, Inc. ("TeleCorp"), a Delaware
corporation, with its principal place of business at 1101 17th Street, N.W.,
Washington, D.C. 20036.

                                    Recitals
                                    --------

         WHEREAS, TeleCorp would like to receive certain benefits under
Intercarrier Roaming Services Agreements between AWS and other providers of
wireless telecommunications service, and AWS would like TeleCorp to receive such
benefits under the terms and conditions of this Agreement:

         WHEREAS, AWS provides Roamer Administration Services to owners and
operators of wireless telecommunications systems;

         WHEREAS, TeleCorp owns and operates wireless telecommunications
system(s) identified on Exhibit A and would like to receive Roamer
Administration Services from AWS; and

         WHEREAS, AWS would like to provide TeleCorp with Roamer Administration
Services subject to the terms and conditions of this Agreement;

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
contained herein, and other good and valuable consideration, the parties hereby
agree as follows:

                                   Definitions

         As used herein, the following terms shall have the following meanings:

         AS means the Administrative Services as more fully described in
Exhibit B.

         CIBER means Cellular Intercarrier Billing Exchange Record as more fully
described in the CIBER Standard.

         CIBER Standard means the publication prepared by CIBERNET Corporation,
a wholly-owned subsidiary of the Cellular Telecommunications Industry
Association, as a
<PAGE>

service to the wireless communications industry. Unless specifically provided
otherwise in this Agreement, all words and phrases defined in the CIBER Standard
shall have the meaning herein that they have therein.

         Claims means any claims, liabilities, damages, costs and expenses
(including reasonable attorneys' fees) asserted by a third party against a party
to this Agreement.

         CMRS or Service means Commercial Mobile Radio Service.

         EDS PCC means EDS Personal Communications Corporation.

         EDS PCC Agreement means that certain Interoperator Agreement dated
January 3, 1997, between AWS and EDS PCC for certain services, as that Agreement
may be amended, extended or renegotiated from time to time.

         ESN means the Electronic Serial Number that is encoded in a wireless
telephone set by the manufacturer and which is broadcast by such telephone.

         Expenses means those costs and expenses related to providing the
Roaming Administration Services set forth in Exhibit C, as may be amended from
time to time by AWS.

         Fees means those fees for Roaming Administration Services set forth in
Exhibit C, as may be amended from time to time by AWS.

         Incollect Obligations means those obligations of TeleCorp to AWS and
Other Wireless Carriers that arise from Roaming by TeleCorp's subscribers on
other wireless systems. These Incollect Obligations accrue separate for each of
AWS and each Other Wireless Carrier.

         Intercarrier Roaming Services Agreement means an agreement entered into
by two facilities-based providers of CMRS under which each carrier agrees to
provide Service to the subscribers of the other carrier and which sets forth
other terms and conditions of the provision of such Service, including but not
limited to price, payment or settlement, and fraud liability terms, as the
agreement may be amended, extended or renegotiated from time to time.

         ISS means Intercarrier Settlement Services as more fully described in
Exhibit B.

         MIN means the ten-digit Mobile Identification Number which is assigned
by a Home Carrier to each of its registered customers.

         NACN means the North American Cellular Network, Inc. and the SS7
signaling network owned and operated by the North American Cellular Network,
Inc.

         NPA/NXX combinations means the six-digit numerical combinations
assigned by regulatory authorities to identify the area code and telephone
number prefix for Service.

                                       2
<PAGE>

         NSS means Net Settlement Services as more fully described in Exhibit B.

         Other Wireless Carriers means facilities-based providers of CMRS with
whom AWS has entered an Intercarrier Roaming Services Agreement and which are
listed on Exhibit A-1.

         Outcollect Obligations means obligations owed to TeleCorp by AWS and
Other Wireless Carriers arising from Roaming by the subscribers of these
companies on the TELECORP System. These Outcollect Obligations accrue separately
for each of AWS and each Other Wireless Carrier.

         PRV means Positive Roamer Verification services as more fully described
in Exhibit B.

         Roamer means a customer of a wireless carrier who seeks Service within
a geographic area served by another wireless carrier.

         Roaming Administrative Services means the services described in
Exhibit B, including AS, FV, ISS, NSS, PRV and XLI, together with the services
that may be provided in connection with the access to the Intercarrier Roaming
Services Agreements entered into between AWS and Other Wireless Carriers.

         Serving Carrier means a Party who provides Service for registered
customers of another Party while such customers are in the geographic area where
the Serving Carrier, directly or through subsidiaries, provides Service.

         Settlement Period shall mean each one-month period of time commencing
at 12:01 a.m. Pacific Standard Time on the sixteenth day of a given calendar
month and ending at 12:00 midnight on the fifteenth day of the immediately
following calendar month.

         XLI means a certain type of PRV service as more fully described in
Exhibit B.

         TELECORP System means the wireless telecommunications system(s) owned
and operated by TeleCorp as identified on Exhibit A.

                                       3
<PAGE>

                                    Agreement

         1.    Access to Intercarrier Roaming Services Agreements. During the
               --------------------------------------------------
term of this Agreement, AWS will make available to TeleCorp the benefits of the
Intercarrier Roaming Services Agreements between AWS and Other Wireless Carriers
listed on Exhibit A-1, subject to the consent of such Other Wireless Carriers
and subject to TeleCorp being a member in good standing of the NACN. TeleCorp
will permit the subscribers of such Other Wireless Carriers to use the
facilities of TeleCorp under the terms and conditions of the applicable
Intercarrier Roaming Services Agreements. AWS may amend Exhibit A-1 by adding
Other Wireless Carriers who have agreed to extend an Intercarrier Roaming
Services Agreement to TeleCorp or by deleting Other Wireless Carriers who have
either revoked the consent to extend an Intercarrier Roaming Services Agreement
to TeleCorp or with whom the Intercarrier Roaming Services Agreement has
terminated or expired, any such amendment to be effective no earlier than 7 days
after the date such notice is given.

         1.1   AWS Authority and Separate Rate Agreements. TeleCorp agrees that
               ------------------------------------------
AWS has full authority to negotiate terms, amendments of and addenda to the
Intercarrier Roaming Services Agreements, administer the Intercarrier Roaming
Services Agreements and settle disputes under the Intercarrier Roaming Services
Agreements on behalf of TeleCorp and that TeleCorp will be bound by and comply
with such terms, amendments, addenda, administrative decisions and settlements.
TeleCorp may, at its option, choose to negotiate a separate rate for roaming
Service with any or all of the Other Wireless Carriers. In order to have these
separate rates included within the Roamer Administration Services, TeleCorp must
provide AWS with written documentation verifying the rates at least thirty (30)
days prior to the effective date for such rates.

         1.2   Separate Liability. TeleCorp is liable for all of its obligations
               ------------------
under each Intercarrier Roaming Services Agreement in which it participates,
including but not limited to payment obligations and fraud liability
obligations. AWS will make available a copy of applicable Intercarrier Roaming
Services Agreements within 30 days of request by TeleCorp.

         1.3   Effect of Intercarrier Roaming Services Agreements. Each
               --------------------------------------------------
Intercarrier Roaming Services Agreement, as may be amended with respect to
TeleCorp under section 1.1 above, supplies the terms and conditions of roaming
services with respect to each Other Wireless Carrier. AWS maintains full control
to continue or to terminate or let expire any Intercarrier Roaming Services
Agreement. Nothing in this Agreement obligates AWS to enter into or to continue
any Intercarrier Roaming Services Agreement with any Other Wireless Carrier. AWS
will notify TeleCorp no less than thirty (30) days in advance of any termination
by AWS or expiration of any Intercarrier Roaming Services Agreement.

         1.4   Fraud Control. TeleCorp shall take reasonable actions to control
               -------------
fraudulent Roamer usage when acting as a Serving Carrier to be consistent with
the Intercarrier Roaming Services Agreements, including without limitation using
SS-7 connections through the NACN which perform validation functions. TeleCorp
shall use commercially reasonable efforts to provide each Other Wireless Carrier
with real-time visibility of call

                                       4
<PAGE>

detail records delivered through a network compatible with AT&T's network. Such
information shall be delivered within one hour of the applicable call. In the
event that TeleCorp provides such a real-time visibility system, TeleCorp shall
not be liable in any event for a temporary failure of the system unless TeleCorp
has been notified of such failure by the Other Wireless Carrier and TeleCorp
does not take commercially reasonable steps to remedy the failure. If TeleCorp
has been so notified and has so failed to take such commercially reasonable
steps, TeleCorp shall be liable for all unauthorized usage attributed to the
Other Wireless Carrier's subscribers during the period from the time TeleCorp
was notified of the problem to the time that the problem has been resolved to
the reasonable satisfaction of the Other Wireless Carrier.

         1.5   Allocation of Roamer Revenues and Roamer Expenses. AWS will treat
               -------------------------------------------------
TeleCorp as an affiliate of AWS for administrative purposes in collecting and
paying amounts owed to TeleCorp and owed by TeleCorp under the applicable
Intercarrier Roaming Services Agreement. TeleCorp acknowledges and agrees that
amounts owed to TeleCorp from Other Wireless Carriers will be collected by AWS,
intermingled with other funds owed to AWS and then distributed to TeleCorp based
upon the amounts owed to TeleCorp for Roamer usage by subscribers of the Other
Wireless Carriers. TeleCorp further acknowledges and agrees that AWS will make
payments for TeleCorp to Other Wireless Carriers based on the reports of Roamer
usage by subscribers of TeleCorp on the systems of the Other Wireless Carriers.
AWS will recover these amounts through the NSS functions described in Exhibit B.

         2.    Roaming Administration Services. During the term of this
               -------------------------------
Agreement, AWS hereby agrees to make available Roaming Administration Services
to TeleCorp, subject to the terms of this Agreement. The Roaming Administration
Services are set forth in Exhibit B, which may be amended by AWS from time to
time upon written notice to TeleCorp.

         2.1   Effect of EDS PCC Agreement. TeleCorp acknowledges that AWS
               ---------------------------
receives certain of the Roaming Administration Services under the EDS PCC
Agreement. In the event the EDS PCC Agreement terminates or expires, AWS'
obligations to provide such Roaming Administration Services will cease. AWS will
give TeleCorp notice promptly following its receipt of notice of termination
from EDS PCC and will give prior notice of any cessation of Roaming
Administration Services under this section 2.1. AWS will offer to resume such
services (on such terms as it determines at the time of such offer) in the event
that it extends or continues with EDS PCC, or enters into a new agreement with
any other provider, with respect to such services. Nothing in this Agreement
obligates AWS to extend, continue or enter into a new EDS PCC Agreement.
TeleCorp agrees to comply with reasonable requests made by AWS in order to
comply with and administer the EDS PCC Agreement.

         2.2   Rates for Service. TeleCorp shall pay AWS Fees and Expenses for
               -----------------
the Roamer Administration Services as set forth on Exhibit C attached hereto.
AWS may modify the Fees and Expenses set forth in Exhibit C upon thirty (30)
days prior written notice to TeleCorp. Amounts owed each month for Fees and
Expenses will be included as amounts owed to AWS in the NSS function described
in Exhibit B.

                                       5
<PAGE>

         3.    Taxes. Unless TeleCorp provides a certificate of exemption or
               -----
other evidence acceptable to appropriate taxing authorities, TeleCorp shall pay
any applicable federal, state or local sales, use, public utility, gross
receipts or other taxes, fees or charges imposed on AWS as a result of (a) the
roaming services received by TeleCorp under the Intercarrier Roaming Services
Agreements and (b) providing the Roaming Administration Services to TeleCorp.
Such taxes will be included in bills when imposed or required by law and shall
be paid by TeleCorp in accordance with this Agreement.

         4.    Payment of Net Amounts.
               ----------------------

         4.1   Amounts Owed to AWS. TeleCorp will pay AWS in full any amounts
               -------------------
owed to AWS after the NSS procedure described in Exhibit B has occurred,
including amounts owed to AWS or Other Wireless Carriers, on or before the
fifteenth day of the month immediately following the close of a Settlement
Period, provided TeleCorp has received the bill for such amounts at least five
(5) business days prior to such payment date. If TeleCorp receives the bill
later than such time, TeleCorp shall pay the bill within ten (10) days of its
receipt by TeleCorp. Payments will be submitted to: AT&T Wireless Services,
Inc., 5000 Carillon Point, Kirkland, WA 98033, ATTN: Billing and Intercarrier
Settlement Services.

         4.2   Amounts Owed to TeleCorp. AWS will pay TeleCorp in full any
               ------------------------
undisputed amounts owed to TeleCorp after the NSS procedure described in Exhibit
B has occurred by AWS or Other Wireless Carriers, (a) for amounts owed by AWS,
on or before the fifteenth day of the month immediately following the close of a
Settlement Period, (b) for amounts owed by Other Wireless Carriers, together
with the net settlement for the month following the date AWS receives payment
from the Other Wireless Carriers. Payments will be submitted to: TeleCorp PCS,
Inc., 1101 17th Street, N.W., Suite 900, Washington, D.C. 20036, ATTN:
Controller.

         4.3   Time. TeleCorp acknowledges and understands that, AWS will pay
               ----
Other Wireless Carriers for TeleCorp `subscribers' roaming usage prior to
receiving payment from TeleCorp. Accordingly, TeleCorp acknowledges and agrees
that time is of the essence and will make timely payments to AWS of all amounts
set forth in each bill after the NSS procedures described in Exhibit B have
occurred. TeleCorp is strictly liable to make timely payments hereunder, and
such liability is not relieved by any dispute that TeleCorp may have with AWS,
Other Wireless Carriers or any other third party.

         4.4   Late Payment. If either party fails to make any payment to the
               ------------
other party when due hereunder, interest shall be paid, from the date due until
paid in full, at a rate of 1.5% per month or portion thereof. In no event shall
interest hereunder accrue at a rate that is in excess of the maximum rate
permitted by applicable law.

         5.    Compatibility with AWS Systems. AWS will establish and, from time
               ------------------------------
to time, enhance the systems that provide information used in performing
functions related to either the EDS PCC Agreement or Intercarrier Roaming
Services Agreements, including, but not limited to, enhancements to billing
systems. TeleCorp will maintain compatibility with these systems and system
enhancements, including but not limited to the CIBER

                                       6
<PAGE>

format for billing records. TeleCorp will be responsible for the costs and
expenses it incurs in maintaining this compatibility.

         6.    Indemnification. TeleCorp will defend, indemnify and hold AWS,
               ---------------
its parent, subsidiaries and affiliates, and the officers, directors, employees
and representatives of each of them harmless from and against any Claims arising
from or made in connection with (a) any access or use (or inability to access or
use) of roaming Service by TeleCorp or any subscriber of TeleCorp, on the system
of AWS or any Other Wireless Carrier, (b) any access or use (or inability to
access or use) of roaming Service on TeleCorp wireless system by AWS or an Other
Wireless Carrier or a subscriber of AWS or an Other Wireless Carrier, (c) any
information provided by TeleCorp to AWS, including without limitation any rate
information and suspected fraud information, (d) any unlawful, negligent or
otherwise wrongful act or failure to act of TeleCorp or its representatives,
(e) a breach by TeleCorp of any provision of this Agreement, or (f) a breach by
TeleCorp of any obligation to or agreement with its subscribers.

         7.    Limitation of Liability.
               -----------------------

         7.1   AWS SHALL NOT BE RESPONSIBLE TO TELECORP FOR ANY INDIRECT,
INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES ARISING OUT OF OR IN CONNECTION
WITH AWS' PERFORMANCE UNDER THIS AGREEMENT, INCLUDING WITHOUT LIMITATION, ANY
DAMAGE TO OR LOSS OF REVENUES, BUSINESS OR GOODWILL. FURTHER, TELECORP
ACKNOWLEDGES THAT IN PERFORMING ITS OBLIGATIONS HEREUNDER AWS WILL RELY UPON
INFORMATION AND REPORTS PROVIDED TO AWS BY THIRD PARTIES. TELECORP AGREES THAT
AWS MAY RELY UPON SUCH INFORMATION IN PERFORMING ITS OBLIGATIONS HEREUNDER, AND
AWS SHALL NOT BE RESPONSIBLE OR LIABLE FOR THE ACCURACY OF ANY INFORMATION IT
RECEIVES FROM THIRD PARTIES IN PERFORMING ITS OBLIGATIONS UNDER THIS AGREEMENT.
IN NO EVENT WILL AWS' LIABILITY TO TELECORP, IN THE AGGREGATE, EXCEED THE AMOUNT
PAID IN FEES BY TELECORP UNDER THIS AGREEMENT DURING THE FIRST TWELVE-MONTH
PERIOD OF THE TERM OF THIS AGREEMENT. THIS SECTION 7.1 WILL SURVIVE THE
TERMINATION OR EXPIRATION OF THIS AGREEMENT.

         7.2   Neither of the parties will be liable for nonperformance or
defective or late performance of any of its obligations under this Agreement to
the extent and for such periods of time as such nonperformance, defective
performance is due to reasons outside such party's control, including, without
limitation, acts of God, war, acts (including failure to act) of any
governmental authority, riots, revolutions, fire, floods, explosions, sabotage,
nuclear incidents, lightning, weather, earthquakes, storms, sinkholes,
epidemics, strikes or delays of suppliers, subcontractors, Other Wireless
Carriers or EDS PCC. Neither party shall be required to settle any labor dispute
in any manner which is deemed by that party to be less than totally
advantageous, in that party's sole discretion.

                                       7
<PAGE>

         8.    Confidentiality.
               ---------------

         8.1   Each of the parties hereto hereby covenants and agrees that,
during the term of this Agreement and thereafter, neither it, nor any of its
employees, agents, officers or directors, will at any time make use of, divulge
or disclose to any person, firm or corporation any trade secrets or confidential
or proprietary information about the other party, its business, financial
condition, operations or otherwise (including, without limitation, any
information concerning the other party's subscribers, their names, addresses, or
telephone numbers, the terms and conditions of each Intercarrier Roaming
Services Agreement and its amendments and addenda), whatever the source of such
confidential or proprietary information. Specifically, and without limitation,
TeleCorp acknowledges that all operational user's guides, manuals, computer
application programs, written procedures or other systems documentation
furnished to it by AWS is the sole property and proprietary information of AWS.
This confidentiality agreement shall not apply to information which is in the
public domain through no act of the party desiring to disclose. Information
contained in documents shall be considered confidential or proprietary if it
relates to information described above or the content and context of the
information is indicative of a desire to maintain confidentiality, whether or
not the document is specifically marked "confidential" or "proprietary".

         8.2   Each party agrees that such confidential or proprietary
information concerning the other party shall only be divulged or disclosed to
its employees who have a valid business reason to know such information and then
only to the extent required for the performance of such employee's duties.

         8.3   Nothing herein shall restrict the right of any party to disclose
confidential or proprietary information which is ordered to be disclosed
pursuant to judicial or other lawful governmental action, but only to the extent
so ordered, or as otherwise required by applicable law or regulation. If either
party is served with process to obtain any confidential or proprietary
information or subscriber records of the other party, that party shall
immediately notify the other party and permit the other party to conduct the
defense against disclosure.

         8.4   Upon termination of this Agreement, each party shall, upon
written request of the other party, return to the other all confidential and
proprietary information concerning the other which exists in written or
electronic form.

         8.5   Each of the parties acknowledges and confirms that any failure on
its part to adhere strictly to the terms and conditions of this paragraph is
likely to cause substantial and irreparable injury to the other party.
Accordingly, each party confirms and agrees that, in addition to all other
remedies to which the other party may be entitled under this Agreement or at law
or in equity, the other party shall be entitled to specific performance and
other equitable relief, including temporary relief.

         9.    Term and Termination.
               --------------------

                                       8
<PAGE>

         9.1   This Agreement shall run for an initial term of two years,
commencing on the date of this Agreement. It shall automatically renew for
additional successive terms of one year each, unless either party gives the
other party written notice of its intent not to renew at least ninety (90) days
prior to the termination of the then-current term.

         9.2   Either party may terminate this Agreement (except for any
obligations which survive termination) for any reason or for no reason upon one
hundred eighty (180) days prior written notice to the other party.

         9.3   Either party may terminate this Agreement (except for any
obligations which survive termination) for any of the following reasons:

               9.3.1  Upon material breach of the other party which is not cured
or for which cure is not reasonably commenced within 30 days after notice of
claimed breach;

               9.3.2  Immediately by either party, after reasonable prior
notice, if the other party's operations materially and unreasonably interfere
with its operations and such interference is not eliminated within 10 days;

         9.4   AWS may terminate this Agreement (except for any obligations
which survive termination) in the event that TeleCorp is no longer a member in
good standing with the NACN.

         9.5   AWS may terminate this Agreement with respect to any Intercarrier
Roaming Services Agreement in accordance with Section 1.

         9.6   AWS may terminate its obligations with respect to certain
provisions under this Agreement:

               9.6.1  with respect to the EDS PCC Agreement in the event such
agreement expires or terminates; and

               9.6.2  with respect to the Roaming Administration Services as set
forth in Section 2.1 above.

         9.7   Section 1 shall survive any termination by AWS pursuant to
Section 9.4 or 9.5.

         10.   Events Upon Termination. Upon termination of this Agreement for
               -----------------------
whatever reason, each party shall immediately (or upon final accounting) pay all
amounts owing to the other parties hereunder, whether due or to become due.

         11.   Representations and Warranties of TeleCorp. TeleCorp hereby
               ------------------------------------------
represents and warrants to AWS the following:

         11.1  It is duly organized and validly existing under the laws of the
jurisdiction of its organization.

                                       9
<PAGE>

         11.2  It has full power and authority to execute and perform this
Agreement.

         11.3  The execution, delivery and performance of this Agreement has
been duly authorized by all necessary action on its part and is binding and
enforceable against it.

         11.4  It is and for the term of this Agreement will remain qualified to
hold a wireless operating license for the areas listed on Schedule A pursuant to
the rules and regulations of the Federal Communications Commission any state
authority with jurisdiction over the areas identified on Schedule A.

         12.   Notices and Other Communications.
               --------------------------------

         12.1  All notices required hereunder shall be in writing and shall be
deemed to have been duly delivered effective upon receipt if personally
delivered, or upon mailing if mailed by prepaid overnight express service,
addressed to the following:

               If to AWS:

               AT&T Wireless Services, Inc.
               Carrier Relations
               5000 Carillon Point
               Kirkland, WA 98033
               Attn:  Eric Baxter

               With a copy to:

               AT&T Wireless Services, Inc.
               5000 Carillon Point
               Kirkland, WA 98033
               Attn:  Legal Department.

               If to TeleCorp:

               TeleCorp PCS, Inc.
               1101 17th Street, N.W.
               Suite 900
               Washington, D.C. 20036
               Attn:  Product Development-Roaming

               With a copy to:

               TeleCorp PCS, Inc.
               1101 17th Street, N.W.
               Suite 900
               Washington, DC 20036
               Attn:  Legal Department

                                       10
<PAGE>

         12.2  For purposes of communication in order to administer this
Agreement effectively, the parties designate the following contact persons for
the subject matters set forth for them below. Either party may change the
information with respect to its designated contacts under this Section 12.2 upon
oral or written notice to the other party.

               TeleCorp Customer Care Contact

               Name: Scott Weismiller
               Tel: 202-261-4804
               Fax: 202-833-4888

               TeleCorp Switch Update/Technical Contact

               Name: Curt Gervelis
               Tel: 202-261-4730
               Fax: 202-833-4888

               TeleCorp Finance/Accounting Contact

               Name: Jackie Talady
               Tel: 202-261-4736
               Fax: 202-833-4888

               AWS Customer Care Contact

               Name: David Mansisidor
               Tel: 425-803-8821
               Fax: 425-828-1390

               AWS Switch Update/Technical Contact

               Name: David Mansisidor
               Tel: 425-803-8821
               Fax: 425-828-1390

               AWS Finance/Accounting Contact

               Name: Mary Hawes
               Tel: 425-828-1308
               Fax: 425-828-1390

         13.   Miscellaneous Provisions.
               ------------------------

         13.1  Attorneys' Fees and Costs. In the event of any action at law or
               -------------------------
in equity concerning the enforcement or interpretation of the terms of this
Agreement, the prevailing party shall be entitled to reimbursement for
reasonable attorneys' fees, costs, and necessary disbursements in addition to
any other relief to which it may show itself to be entitled.

                                       11
<PAGE>

         13.2  No Joint Venture. Nothing in this Agreement is intended, or shall
               ----------------
be construed, to create a joint venture, partnership or other common business
entity as among AWS and TeleCorp. Neither of the parties shall have the
authority to accept legal process on behalf of the other party. Nothing herein
gives TeleCorp or AWS claim to the subscribers of the other or to revenues of
the other derived from its respective system. Both parties shall be solely
responsible for the operation of its systems or businesses, including but not
limited to payment of wages, benefits, taxes for employees and sales or income
taxes.

         13.3  Governmental Approval. The performance of any obligations of any
               ---------------------
party hereunder, or the exercise of any rights hereunder by any party hereto
that may require FCC or other governmental authority approval, shall be subject
to obtaining such approval. Both parties agree to take no action under this
Agreement which may place the other party in non-compliance with known and
applicable government regulations.

         13.4  Governing Law. This Agreement shall be construed under and in
               -------------
accordance with the Laws of the State of Washington.

         13.5  Assignment. This Agreement and the duties and obligations
               ----------
hereunder may not be assigned by either party without the express written
consent of the other party and an agreement by the assignee to be fully bound by
the terms and conditions hereof; provided, however, that such consent will not
be unreasonably withheld; and, provided further, that AWS may assign its rights
and obligations to an affiliate without obtaining the consent of TeleCorp.
TeleCorp acknowledges that AWS may subcontract any or all of its duties under
this Agreement to a third party. In the event AWS assigns this Agreement to a
third party, TeleCorp may terminate this Agreement upon 90 days' written notice
within 30 days of such assignment.

         13.6  No Third-Party Beneficiary. This Agreement is not intended, nor
               --------------------------
shall it be construed, to create or convert any right in or upon any person or
entity not a party to this Agreement, unless specifically set forth in this
Agreement.

         13.7  Parties Bound. This Agreement shall be binding upon and inure to
               -------------
the benefit of the parties hereto and their respective heirs, executors,
administrators, legal representatives, successors and assigns where permitted by
this Agreement.

         13.8  Severability. In case any one or more of the provisions contained
               ------------
in this Agreement shall for any reason be held by any arbitration tribunal or
court of competent jurisdiction to be invalid, illegal or unenforceable in any
respect, such invalidity, illegality or unenforceability shall not affect any
other provision thereof, and this Agreement shall be construed as if such
invalid, illegal, or unenforceable provisions were deleted, and replaced with
enforceable provisions, which as nearly as possible, give effect to the intent
of such invalid, illegal or unenforceable provisions.

         13.9  Entire Agreement. This Agreement constitutes the sole and only
               ----------------
agreement of the parties with respect to the services described herein and
supersedes any prior understanding or written or oral agreements between the
parties respecting the within

                                       12
<PAGE>

subject matter. In the event another form or invoice is used for provision of
the services and such form or invoice contains terms or conditions different
from those set forth herein, the parties agree that the language of this
Agreement shall control.

         13.10 Section Headings. The headings of the several sections and
               ----------------
paragraphs of this Agreement are inserted for convenience of reference only and
are not intended to be part of or to affect the meaning or interpretation of
this Agreement.

         13.11 No Waiver. Either party's failure at any time to enforce any of
               ---------
the provisions of this Agreement or any right with respect thereto, or to
exercise any option herein provided, will in no way be construed to be a waiver
of such provisions, rights or options or in any way to affect the validity of
this Agreement. The exercise by either party of any rights or options herein
shall not preclude or prejudice the exercising thereafter of the same or other
rights under this Agreement.

         13.12 Dispute Resolution.
               ------------------

               13.13 All claims and disputes relating in any way to the
         performance, interpretation, validity, or breach of this Agreement,
         including but not limited to a claim based on or arising from an
         alleged tort, shall be resolved as provided in this Section 13.12. It
         is the intent of the parties that any disagreements be resolved
         amicably to the greatest extent possible.

               13.14 If a disagreement cannot be resolved by the representatives
         of the parties with day-to-day responsibility for this Agreement, such
         matter shall be referred to an executive officer of each of the
         parties. The executive officers shall conduct face-to-face negotiations
         at a neutral location or such other location as shall be mutually
         agreed upon. If these representatives are unable to resolve the dispute
         within ten business days after either party requests the involvement of
         the executive officers, then either party may, but is not required to,
         refer the matter to mediation or arbitration, as applicable in
         accordance with this Section 13.12.

               13.15 In any case where the amount claimed or at issue is Five
         Hundred Thousand Dollars ($500,000.00) or more and the parties are
         unsuccessful in resolving the disagreement, the parties agree to submit
         the disagreement to non-binding mediation upon written notification by
         either party. The parties shall mutually select an independent mediator
         experienced in telecommunications system disputes. The specific format
         for the mediation shall be left to the discretion of the mediator. If
         mediation does not result in resolution of the disagreement within
         thirty days of the initial request for mediation, then either party
         may, but is not required to, refer the matter to arbitration.

               13.16 Any disagreement not finally resolved in accordance with
         the foregoing provisions of this Section 13.12 shall, upon written
         notice by either party to the other, be resolved by final and binding
         arbitration. Subject to this Section, such arbitration shall be
         conducted through, and in accordance with the rules of, JAMS/Endispute.
         A single neutral arbitrator shall decide all disputes. Each party shall
         bear its own expenses with respect to the arbitration, except that the
         costs of arbitration proceeding itself, including the fees and

                                       13
<PAGE>

expenses of the arbitrator, shall be shared equally by the parties. The
arbitration shall take place in a neutral location selected by the arbitrator.
The arbitrator may permit discovery to the full extent permitted by the Federal
Rules of Civil Procedure or to such lesser extent as the arbitrator determines
is reasonable. The arbitrator shall be bound by and strictly enforce the terms
of this Agreement. The arbitrator shall make a good faith effort to apply
applicable law, but an arbitration decision and award shall not be subject to
review because of errors of law. The arbitrator shall have the sole authority to
resolve issues of the arbitrability of any disagreement, including the
applicability or running of any applicable statute of limitation. The arbitrator
shall not have power to award damages in connection with any dispute in excess
of actual compensatory damages nor to award punitive damages nor any damages
that are excluded under this Agreement and each party irrevocably waives any
claim thereto. The award of any arbitration shall be final, conclusive and
binding on the Parties. Judgment on the award may be entered in any court having
jurisdiction over the Party against which the award was made. Nothing contained
in this Section 13.12 shall be deemed to prevent either party from seeking any
interim equitable relief, such as a preliminary injunction or temporary
restraining order, pending the results of the arbitration. The United States
Arbitration Act and federal arbitration law shall govern the interpretation,
enforcement, and proceedings pursuant to the arbitration clause in this
Agreement.

         13.17 No action or arbitration, regardless of form, may be brought by
either party more than two (2) years from the date of the event which gave rise
to such action.



         IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date and year first above written.


AWS:                                      AT&T Wireless Services, Inc.



                                          By:  /s/ Signature illegible
                                               ---------------------------------
                                          Its:  Vice President
                                               ---------------------------------


TeleCorp PCS, Inc.:                       TeleCorp PCS, Inc.



                                          By:  /s/ Thomas H. Sullivan
                                               ---------------------------------
                                          Its:  Executive Vice President
                                               ---------------------------------

                                       14
<PAGE>

                                    EXHIBIT A

                            TeleCorp PCS, Inc. System


PCS systems to be constructed in the Territory (as such term is defined in the
Securities Purchase Agreement dated January 23, 1998 by and among TeleCorp PCS,
Inc., AT&T Wireless PCS Inc., TWR Cellular, Inc. and the other signatories
thereto).

                                       15
<PAGE>

                                   EXHIBIT A-1

                             Other Wireless Carriers

                                 (See Attached)

                                      A-1
<PAGE>

Effective 7/16/98

                                   Exhibit A-1

               Carrier_Name                           Carrier_Shortname
VALLEY TELECOMMUNICATIONS COMPANY                 VALLEY TELECOMMUNICATIONS
WESTERN WIRELESS CORPORATION                      WESTERN WIRELESS
COMCAST CELLULAR CORPORATION                      COMCAST CELLULAR
HOUSTON CELLULAR TELEPHONE CO                     HOUSTON CELL
WESTEL - INDIANAPOLIS TELEPHONE COMPANY           WESTEL
AT&T WIRELESS SERVICES, INC.                      AWS
SYGNET COMMUNICATIONS INC.                        SYGNET COMM INC.
UNITED STATES CELLULAR CORP                       U.S. CELLULAR
MERCURY CELLULAR INCORPORATED                     MERCURY CELLULAR
ALLTEL MOBILE COMMUNICATIONS                      ALLTEL
PALMER WIRELESS INC.                              PALMER WIRELESS
GALVESTON CELLULAR TELEPHONE CO.                  GALVESTON CELL
PETROLEUM COMMUNICATIONS                          PETROCOM
SANTA CRUZ CELLULAR TELEPHONE CO.                 SANTA CRUZ CELL.
APPALACHIAN CELLULAR                              APPALACHIAN CELLULAR
SPRINGWICH CELLULAR LTD PARTNERSHIP               SNET CELLULAR
ARCTIC SLOPE TELECOMM. & CELLULAR, INC.           ARCTIC SLOPE CELLULAR
DOBSON CELLULAR SYSTEMS OF KS/MO                  DCS OF KS/MO
BACHOW/COASTEL OPERATIONS, INC.                   COASTEL COMMUNICATIONS
ALLEGAN CELLULAR L.P.                             ALLEGAN CELLULAR
EASTERBROOKE CELLULAR CORP - RCM                  EASTERBROOKE CELLULAR
LAKE HURON CELLULAR CORPORATION                   LAKE HURON CELLULAR
TEXAS 16 CELLULAR TELEPHONE COMPANY               TEXAS 16 CELLULAR
TRIAD CELLULAR PREVIOUSLY C-1 N. TEXAS            TRIAD CELLULAR
METACOMM CELLULAR PARTNERS                        METACOMM CELLULAR
BLACKWATER CELL/DOUGLAS TELECOMMUNICATIONS        BLACKWATER CELLULAR
ALPHA CELLULAR                                    C-1 COLUMBUS
CELLULAR COMM OF PUERTO RICO INC                  CCPR
PRICELLULAR CORPORATION                           PRICELLULAR
GREAT LAKES OF IOWA, INC.                         C-1 GREAT LAKES OF IOWA
DOBSON CELLULAR SYSTEMS INCORPORATED              DOBSON CELLULAR
CAL-ONE CELLULAR                                  CAL-ONE CELLULAR
MERCURY COMMUNICATIONS                            MERCURY COMMUNICATIONS
HLD CELLULAR                                      HLD CELLULAR
IFC CELLULAR PARTNERS                             C-1 FREDERICK
BLUE MOUNTAIN CELLULAR                            BLUE MOUNTAIN CELLULAR
CELLULAR ONE OF SOUTHWEST FLORIDA                 C-1 SW FLORIDA
UNIVERSAL TELECELL, INC.                          UNITEL INC.

                                     Page 1
<PAGE>

                                   EXHIBIT B

                        Roaming Administration Services

1.       Administration Services (AS)

         The AS will include various services that AWS will perform to manage
TeleCorp's roaming program.

         1.1   Reports and Bills. Each month during the term of this Agreement,
               -----------------
within a reasonable period of time after receipt by AWS of information regarding
the Roamer activity during the prior Settlement Period, AWS shall provide
TeleCorp with a report summarizing Roamer activity during the prior Settlement
Period.

         1.2   Exchange of Information. AWS shall provide Other Wireless
               -----------------------
Carriers and the North American Cellular Network with information (including,
without limitation, NPA/NXX and number range combinations) provided to AWS by
TeleCorp pursuant to the Intercarrier Roamer Services Agreement between AWS and
TeleCorp that will enable TeleCorp's subscribers to roam in the markets owned by
Other Wireless Carriers. Further, AWS shall provide TeleCorp with information
(including, without limitation, NPA/NXX combinations and MINs) provide to AWS by
Other Wireless Carriers and the NACN pursuant to roaming agreements that will
enable the subscribers of Other Wireless Carriers to roam in the wireless
systems identified in Exhibit A-1.

         1.3   Outcollect Table Maintenance. In the event that TeleCorp uses
               ----------------------------
CBIS as its billing vendor, AWS will maintain the Macro/Cell tables necessary to
bill subscribers of AWS and Other Wireless Carriers for use of the TeleCorp
network. Specifically, AWS agrees to maintain the Roamer Outcollect Maintenance
(070101) and roamer Surcharge Maintenance (070102) tables including bi-weekly
updates of new NPA/NXX information, maintenance required by changes to rate
agreements and corrections identified through the course of AWS' regular
operations work.

         1.4   Fraud Brownout Notifications. AWS agrees to serve as the request
               ----------------------------
processor and single point of contact between TeleCorp, on the one hand, and AWS
and Other Wireless Carriers, on the other hand, for the exchange of suspected
fraudulent use notifications and NPA/NXX pull and reload requests related to
fraudulent use of TeleCorp NPA/NXX's on the networks of AWS and Other Wireless
Carriers and the NPA/NXX's of AWS and Other Wireless Carriers on the network of
TeleCorp. AWS will receive and forward all requests on a daily (Monday - Friday)
basis to the appropriate party for action. In addition, AWS agrees to maintain
and distribute as requested historical data regarding fraud pull and reload
request data.

         1.5   Rate Monitoring. AWS will monitor incollect rates charged to
               ---------------
TeleCorp and outcollect rates charged by TeleCorp. If an incorrect roaming rate
is charged by TeleCorp to an Other Wireless Carrier, and the Other Wireless
Carrier invoices AWS for amounts charged in excess of the amounts that should
have been charged under the

                                      B-1
<PAGE>

applicable Intercarrier Roaming Services Agreement, AWS shall refund all amounts
in excess of the contract rate back to the Other Wireless Carrier within
forty-five days of notification by the Other Wireless Carrier. If an incorrect
roaming rate is charged to TeleCorp by an Other Wireless Carrier so that the
amounts charged in a month are more than $200 over the amounts that should have
been charged under the applicable Intercarrier Roaming Services Agreement, AWS
will invoice the Other Wireless Carrier for all amounts in excess of the
contract rate. AWS shall not be responsible for any amounts undercharged by AWS
on behalf of TeleCorp to any Other Wireless Carrier.

2.       Full Visibility (FV) Services - Optional Service
         ------------------------------------------------

         FV services are adjunct to XLI service. FV provides a mechanism for
receiving transaction information on all call attempts made by a Roamer who
subscribes to a carrier using XLI while roaming on a market serviced by the GTE
TSI network for validation. The FV services include the following features:

         2.1   When a subscriber from a carrier using XLI is roaming in an area
served by GTE for validation is found negative in GTE's negative file, GTE sends
a visibility notification message which can then be used to report the activity.
When a subscriber from a carrier using XLI is roaming in an area served by GTE
for validation, and is not found in the GTE negative file, but has a valid
status in their industry file, GTE will send a visibility notification message
which can then be used to report the activity.

         2.2   Additional options for updating visibility settings by NPA/NXX
ranges or by System Identification ("SID") or Billing Identification ("BID") are
available.

         2.3   Home carrier enabling/disabling option by NPA/NXX range or by
SID/BID within a 45-day period.

         2.4   Availability of cloning activity reports for Roamers on systems
using GTE and XLI.

3.       Intercarrier Settlement Services (ISS)
         --------------------------------------

         With ISS, AWS will instruct EDS PCC to edit roaming records to verify
the billable status of these records. These edits will be performed in
accordance with the then current CIBER standards. AWS will also provide certain
standard reports in connection with these edits.

         3.1   Edits. The records will be edited against the CIBERNET standards,
               -----
using a 60-day standard for the Call Age Edit. Any records which do not satisfy
these standards will be returned to the serving carrier.

               3.1.1  Negative File Edit
               3.1.2  CIBER Edit
               3.1.3  NPA/NXX Edit - Proper Routing of Call
               3.1.4  Call Age Edit
               3.1.5  Out-of-Sequence Batch Edits

                                      B-2
<PAGE>

               3.1.6  Duplicate Call Edit
               3.1.7  Roamer Agreement Edit
               3.1.8  Out of Balance Edit
               3.1.9  Invalid Record Type Edit
               3.1.10 Incorrect Rate Edit
               3.1.11 Additional Edits Per CIBER Standard Table 3


         3.2   Reports. The following reports reflect activity within a
               -------
settlement cycle. Each report is produced at the end of each settlement cycle
(the 1st through the 15th of the calendar month and the 16th of a calendar month
through month end).

               3.2.1  Incollect Reports which summarize the amounts owed by
TeleCorp for Roamer calls to each of AWS and each Other Wireless Carrier.

               3.2.2  Outcollect Reports which summarize the amounts owed to
TeleCorp for Roamer calls from each of AWS and each Other Wireless Carrier.

               3.2.3  Net Settlement Reports which summarize the net amount owed
to or owed by TeleCorp for Roamer calls with respect to each of AWS and each
Other Wireless Carrier.

4.       Net Settlement Services (NSS)
         -----------------------------

         4.1   Clearinghouse Functions. AWS shall provide Roamer clearinghouse
               -----------------------
functions for TeleCorp, such that TeleCorp's Incollect Obligations are netted
against TeleCorp's Outcollect Obligations for AWS and each Other Wireless
Carrier. To the extent that the Incollect Obligations, Fees and Expenses exceed
the net Outcollect Obligations with respect to AWS or with respect to any Other
Wireless Carrier, TeleCorp shall pay such net Incollect Obligations, Fees and
Expenses to AWS. To the extent that net Outcollect Obligations exceed net
Incollect Obligations, Fees and Expenses with respect to AWS or any Other
Wireless Carrier, AWS shall pay such net Outcollect Obligations to TeleCorp.

         4.2   Fraud Settlement Functions. AWS will invoice Other Wireless
               --------------------------
Carriers for Roamer fraud, under the terms of any Intercarrier Roaming Services
Agreements in place with Other Wireless Carriers. AWS will provide invoices to
TeleCorp for Roamer fraud incurred by Other Wireless Carriers and make payments
to Other Wireless Carriers for these invoices. Information to be included in any
invoice to AWS or any Other Wireless Carrier must be in the format required by
AWS, as that format may change from time to time. This information must be
submitted to AWS sufficiently close to the date of the call record at issue in
order to permit AWS to invoice Other Wireless Carriers.

5.       Positive Roamer Verification (PRV) - Optional Service
         -----------------------------------------------------

         The PRV service will provide TeleCorp with the ability to verify the
billing status of Roamers from Other Wireless Carriers not connected to TeleCorp
through the NACN or other network or carriers which provide alternative SS7
verification services. This

                                      B-3
<PAGE>

verification will be accomplished through comparison of the Roamer's MIN an ESN
combination with a database designed to identify potential fraudulent use. This
information can be used by TeleCorp to deny service to callers when roaming in
the TELECORP System.

                                      B-4
<PAGE>

                                    EXHIBIT C

                                Fees and Expenses

Service                   Fee
- -------                   ---

PRV (optional)            $0.21 per unique ESN validation per each calendar day.

XLI (optional)            $0.16 per unique ESN validation per each calendar day.
                          $1000.00 per SID/BID minimum (waived if transaction
                          charges are greater than or equal to $1000.00)

FULL VISIBILITY           $0.025/transaction
(optional)                $500.00 for first SID/BID using FV.
                          $50.00 for additional SID/BIDs using FV.
                          $500.00 Installation - one time charge.

ISS                       $0.015 per outcollect record
                          $0.015 per incollect record

                          Monthly minimum:
                          Up to 100K records monthly: $2,000 per SID/BID flat
                          fee and no record fee.
                          Greater than 100K records monthly: $1,000 per SID/BID
                          plus record fee for records above 100K

CLEARINGHOUSE             $1000.00 per SID/BID
SET UP FEE

ROAM AGREEMENT            $25,000.00
SET UP FEE

CIBERNET Fees             $0.005 per outcollect amount dollar owed to TeleCorp.

Special Processing and    As agreed by the parties in writing
Reports

Clearinghouse Financial   $50.00 per market per Settlement Period
Reports


TeleCorp will also pay all postage, handling, overnight mail fees, and any other
fees incurred by AWS as the result of complying with special requests from
TeleCorp for services and reports not described in this Agreement or for special
modifications to any service or report.

AWS may modify the fees outlined above with 30 days' prior written notice.

<PAGE>

                                                                  EXHIBIT 10.8.1
                                                                  CONFORMED COPY

================================================================================


                               CREDIT AGREEMENT


                                  dated as of


                                 July 17, 1998


                                     among


                              TELECORP PCS, INC.


                           The Lenders Party Hereto


                                      and


                           THE CHASE MANHATTAN BANK,
                   as Administrative Agent and Issuing Bank

                           TD SECURITIES (USA) INC.,
                             as Syndication Agent

                            BANKERS TRUST COMPANY,
                            as Documentation Agent

================================================================================
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                              Page
                                                                              ----
<S>                                                                           <C>

                                   ARTICLE I

                                  Definitions
                                  -----------

SECTION 1.01.    Defined Terms............................................       1
SECTION 1.02.    Classification of Loans and Borrowings...................      40
SECTION 1.03.    Terms Generally..........................................      40
SECTION 1.04.    Accounting Terms; GAAP...................................      39


                                  ARTICLE II

                                  The Credits
                                  -----------

SECTION 2.01.    Commitments..............................................      41
SECTION 2.02.    Loans and Borrowings.....................................      41
SECTION 2.03.    Requests for Borrowings..................................      43
SECTION 2.04.    Funding of Borrowings....................................      44
SECTION 2.05.    Interest Elections.......................................      44
SECTION 2.06.    Termination and Optional Reduction
                  of Commitments...........................................     46
SECTION 2.07.    Repayment of Loans; Evidence of Debt.....................      47
SECTION 2.08.    Automatic Revolving Commitment Reductions; Amortization
                  of Term Loans............................................     48
SECTION 2.09.    Prepayment of Loans......................................      50
SECTION 2.10.    Fees.....................................................      53
SECTION 2.11.    Interest.................................................      54
SECTION 2.12.    Alternate Rate of Interest...............................      55
SECTION 2.13.    Increased Costs..........................................      55
SECTION 2.14.    Break Funding Payments...................................      57
SECTION 2.15.    Taxes....................................................      57
SECTION 2.16.    Payments Generally; Pro Rata
                  Treatment; Sharing of Setoffs...........................      59
SECTION 2.17.    Mitigation Obligations; Replacement of Lenders...........      62
SECTION 2.18.    Expansion Facility.......................................      63
SECTION 2.19.    Letters of Credit........................................      64


                                  ARTICLE III

                        Representations and Warranties
                        ------------------------------

SECTION 3.01.    Organization; Powers.....................................      69
</TABLE>
<PAGE>

<TABLE>
<S>                                                                             <C>
SECTION 3.02.    Authorization; Enforceability............................      70
SECTION 3.03.    Governmental Approvals; No Conflicts.....................      70
SECTION 3.04.    Financial Condition; No Material Adverse Change..........      70
SECTION 3.05.    Properties...............................................      71
SECTION 3.06.    Litigation and Environmental Matters.....................      71
SECTION 3.07.    Compliance with Laws and Agreements......................      72
SECTION 3.08.    Investment and Holding Company Status....................      72
SECTION 3.09.    Taxes....................................................      72
SECTION 3.10.    ERISA....................................................      73
SECTION 3.11.    Disclosure...............................................      73
SECTION 3.12.    Subsidiaries; Parents....................................      74
SECTION 3.13.    Absence of Non-Permitted Obligations.....................      75
SECTION 3.14.    Licenses.................................................      75
SECTION 3.15.    No Burdensome Restrictions...............................      75
SECTION 3.16.    Use of Proceeds..........................................      76
SECTION 3.17.    Flood Insurance..........................................      76
SECTION 3.18.    Insurance................................................      76
SECTION 3.19.    Labor Matters............................................      76
SECTION 3.20.    Solvency.................................................      76
SECTION 3.21.    FCC Compliance...........................................      77
SECTION 3.22.    Security Documents.......................................      77
SECTION 3.23.    Copyrights, Trademarks, etc..............................      79
SECTION 3.24.    Federal Regulations......................................      79
SECTION 3.25.    Year 2000................................................      79


                                  ARTICLE IV

                                  Conditions
                                  ----------
SECTION 4.01.    Effective Date...........................................      80
SECTION 4.02.    Each Credit Event........................................      87

                                   ARTICLE V

                             Affirmative Covenants
                            ----------------------

SECTION 5.01.    Financial Statements and Other
                  Information.............................................      88
SECTION 5.02.    Notices of Material Events...............................      91
SECTION 5.03.    Information Regarding Collateral.........................      92
SECTION 5.04.    Existence; Conduct of Business...........................      93
SECTION 5.05.    Payment of Obligations...................................      93
SECTION 5.06.    Maintenance of Properties................................      93
</TABLE>
<PAGE>

<TABLE>
<S>                                                                             <C>
SECTION 5.07.    Insurance................................................      93
SECTION 5.08.    Casualty and Condemnation................................      93
SECTION 5.09.    Books and Records; Inspection and Audit Rights...........      94
SECTION 5.10.    Compliance with Laws.....................................      94
SECTION 5.11.    Use of Proceeds..........................................      95
SECTION 5.12.    Additional Subsidiaries..................................      95
SECTION 5.13     Further Assurances.......................................      95
SECTION 5.14.    Interest Rate Protection.................................      97
SECTION 5.15.    Satisfaction of F-Block Licence Requirements.............      97


                                  ARTICLE VI

                              Negative Covenants
                              ------------------

SECTION 6.01.    Indebtedness; Certain Equity Securities..................      97
SECTION 6.02.    Liens....................................................     101
SECTION 6.03.    Sale and Lease-Back Transactions.........................     102
SECTION 6.04.    Fundamental Changes......................................     102
SECTION 6.05.    Investments, Loans, Advances,
                  Guarantees and Acquisitions..............................    103
SECTION 6.06     Asset Sales..............................................     105
SECTION 6.07.    Hedging Agreements.......................................     106
SECTION 6.08.    Restricted Payments; Certain Payments
                  of Indebtedness..........................................    106
SECTION 6.09.    Transactions with Affiliates.............................     107
SECTION 6.10.    Restrictive Agreements...................................     108
SECTION 6.11.    Amendment of Material Documents..........................     108
SECTION 6.12.    Financial Covenants......................................     109
SECTION 6.13.    Liabilities of Special Purpose Subsidiaries..............     113


                                  ARTICLE VII

                        Events of Default.................................     114
                        -----------------


                                 ARTICLE VIII

                        The Administrative Agent..........................     119
                        ------------------------

                                  ARTICLE IX

                                 Miscellaneous
                                 -------------
</TABLE>
<PAGE>

<TABLE>
<S>                                                                            <C>
SECTION 9.01.    Notices..................................................     121
SECTION 9.02.    Waivers; Amendments......................................     122
SECTION 9.03.    Expenses; Indemnity; Damage Waiver.......................     124
SECTION 9.04.    Successors and Assigns...................................     126
SECTION 9.05.    Survival.................................................     129
SECTION 9.06.    Counterparts; Integration; Effectiveness.................     129
SECTION 9.07.    Severability.............................................     130
SECTION 9.08.    Right of Setoff..........................................     130
SECTION 9.09.    Governing Law; Jurisdiction; Consent
                  to Service of Process...................................     130
SECTION 9.10.    WAIVER OF JURY TRIAL.....................................     131
SECTION 9.11.    Headings.................................................     132
SECTION 9.12.    Confidentiality..........................................     132
</TABLE>

SCHEDULES:
- ---------

Schedule 1.01     -- Equity Participations
Schedule 2.01     -- Commitments
Schedule 3.05     -- Real Property
Schedule 3.06     -- Litigation and Environmental Matters
Schedule 3.12     -- Subsidiaries
Schedule 3.14     -- Network Area/Licenses
Schedule 3.18     -- Insurance
Schedule 3.22     -- Mortgaged Property
Schedule 6.01     -- Existing Indebtedness
Schedule 6.02     -- Existing Liens
Schedule 6.05(b)  -- Investments
Schedule 6.10     -- Existing Restrictions


EXHIBITS:
- --------

Exhibit A   -- Form of Assignment and Acceptance
Exhibit B-1 -- Opinion of Borrower's Counsel
Exhibit B-2 -- Opinion of FCC Counsel
Exhibit B-3 -- Form of Opinion of Local Counsel
Exhibit C   -- Form of Guarantee Agreement
Exhibit D   -- Form of Pledge Agreement
Exhibit E   -- Form of Security Agreement
Exhibit F   -- Form of Indemnity, Subrogation and Contribution Agreement
Exhibit G   -- Master Lease between the Equipment Subsidiary and the Borrower
<PAGE>

               CREDIT AGREEMENT dated as of July 17, 1998 among TELECORP PCS,
               INC., a Delaware corporation (the "Borrower"), the LENDERS (as
                                                  --------
               defined in Article I) party hereto, THE CHASE MANHATTAN BANK, as
               Administrative Agent and Issuing Bank, TD SECURITIES (USA) INC.,
               as Syndication Agent, and BANKERS TRUST COMPANY, as Documentation
               Agent.


          WHEREAS the Borrower intends to construct and operate a mobile
wireless PCS telecommunications network utilizing TDMA IS-136 technology or its
successor and networks ancillary thereto serving the MTAs and BTAs listed on
Schedule 3.14 (the "Network");
                    -------

          WHEREAS the Borrower has requested the Lenders to make available
credit facilities to finance capital expenditures related to the construction of
the Network, the acquisition of Related Businesses, working capital needs of the
Borrower and subscriber acquisition costs; and

          WHEREAS the Lenders are willing to make the requested credit
facilities available on the terms and subject to the conditions set forth in
this Agreement;


          NOW, THEREFORE, in consideration of the premises and the mutual
agreements set forth below, the parties hereto agree as follows:


                                   ARTICLE I

                                  Definitions
                                  -----------

          SECTION 1.01.  Defined Terms.  As used in this Agreement, the
                         --------------
following terms have the meanings specified below:

          "ABR", when used in reference to any Loan or Borrowing, refers to
           ---
whether such Loan, or the Loans comprising such Borrowing, bear interest at a
rate determined by reference to the Alternate Base Rate.
<PAGE>

          "Adjusted EBITDA" means for any fiscal period, the sum of (a)
           ---------------
Consolidated EBITDA for such period plus (b) the aggregate amount deducted in
                                    ----
determining Consolidated Net Income for such period in respect of sales,
marketing and advertising expenses and consumer-related equipment subsidy
expenses.

          "Adjusted LIBO Rate" means, with respect to any Eurodollar Borrowing
           ------------------
for any Interest Period, an interest rate per annum (rounded upwards, if
necessary, to the next 1/100 of 1%) equal to (a) the LIBO Rate for such Interest
Period multiplied by (b) the Statutory Reserve Rate.

          "Administrative Agent" means The Chase Manhattan Bank, in its capacity
           --------------------
as administrative agent and collateral agent for the Lenders.

          "Administrative Questionnaire" means an Administrative Questionnaire
           ----------------------------
in the form supplied by the Administrative Agent.

          "Affiliate" means, with respect to a specified Person, another Person
           ---------
that directly, or indirectly through one or more intermediaries, Controls or is
Controlled by or is under common Control with the Person specified and with
respect to any Lender that is a fund that invests in commercial loans, any other
fund that invests in commercial loans and is managed by the same investment
advisor as such Lender or by an Affiliate of such investment advisor.

          "Aggregate Revolving Exposure" means the aggregate amount of the
           ----------------------------
Lenders' Revolving Exposures.

          "Aggregate Service Revenue" means for any period, all service
           -------------------------
revenues, including without limitation subscriber revenues, toll revenues,
roaming revenues, wholesale service revenues and long-distance revenues, of the
Borrower and the Restricted Subsidiaries for such period.

          "Alternate Base Rate" means, for any day, a rate per annum equal to
           -------------------
the greater of (a) the Prime Rate in effect on such day and (b) the Federal
Funds Effective Rate in effect on such day plus 1/2 of 1%.  Any change in the
Alternate Base Rate due to a change in the Prime Rate or the Federal Funds
Effective Rate shall be effective from and including the effective date of such
change in the Prime Rate or the Federal Funds Effective Rate, respectively.

          "Annualized Adjusted EBITDA" means for the period ending on the last
           ---------------------------
day of any fiscal quarter, the product of
<PAGE>

                                                                               3

(a) Adjusted EBITDA for the two consecutive fiscal quarters ending on such last
day, multiplied by (b) two.

          "Annualized EBITDA" means for the period ending on the last day of any
           -----------------
fiscal quarter, the product of (a) Consolidated EBITDA for the two consecutive
fiscal quarters ending on such last day, multiplied by (b) two.

          "Applicable Margin" means, for any day (a) with respect to any Tranche
           -----------------
B Term Loan, the applicable Tranche B Rate, and (b) with respect to any ABR Loan
or Eurodollar Loan that is a Revolving Loan or a Tranche A Term Loan, as the
case may be, the applicable rate per annum set forth below under the caption
"ABR Spread" or "Eurodollar Spread", as the case may be, based upon the Leverage
Ratio as of the most recent determination date; provided that, unless
                                                --------
Consolidated EBITDA for the most recent fiscal quarter for which financial
statements have been delivered pursuant to Section 5.01 is positive, the
"Applicable Margin" for purposes of clause (b) shall be the applicable rate per
annum set forth below in Category 1:

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------
          Leverage Ratio:                      ABR           Eurodollar
          ---------------                      ---           ----------
                                              Spread           Spread
                                              ------           ------
- --------------------------------------------------------------------------
<S>                                           <C>            <C>
             Category 1                              1.75%        2.75%
             ----------
 Not Applicable
- --------------------------------------------------------------------------

             Category 2                              1.50%        2.50%
             ----------

Greater than or equal to 10.0 to 1.00
- ---------------------------------------------------------------------------

             Category 3                              1.25%        2.25%
             ----------

Greater than or equal to 9.0 to 1.00
 but less than 10.0 to 1.00
- ---------------------------------------------------------------------------

             Category 4                              1.00%        2.00%
             ----------

Greater than or equal to 8.0 to 1.00
 but less than 9.0 to 1.00
- ---------------------------------------------------------------------------

             Category 5                              0.75%        1.75%
             ----------

Greater than or equal to 6.0 to 1.00
 but less than 8.0 to 1.00
- ---------------------------------------------------------------------------

             Category 6                              0.50%        1.50%
             ----------
- ---------------------------------------------------------------------------
</TABLE>
<PAGE>

                                                                               4

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------
          Leverage Ratio:                      ABR           Eurodollar
          ---------------                      ---           ----------
                                              Spread           Spread
                                              ------           ------
- --------------------------------------------------------------------------
<S>                                           <C>            <C>
Greater than or equal to 5.0 to 1.00
 but less than 6.0 to 1.00
- ---------------------------------------------------------------------------

             Category 7
             ----------
                                              0.25%            1.25%
Less than 5.0 to 1.00
- ---------------------------------------------------------------------------
</TABLE>

          For purposes of the foregoing, (i) the Leverage Ratio shall be
determined as of the end of each fiscal quarter of the Borrower's fiscal year
based upon the Borrower's consolidated financial statements delivered pursuant
to Section 5.01(a) or (b) and (ii) each change in the Applicable Margin
resulting from a change in the Leverage Ratio shall be effective during the
period commencing on and including the date of delivery to the Administrative
Agent of such consolidated financial statements indicating such change and
ending on the date immediately preceding the effective date of the next such
change; provided that the Leverage Ratio shall be deemed to be in Category 1 (A)
        --------
at any time that an Event of Default has occurred and is continuing or (B) if
the Borrower fails to deliver the consolidated financial statements required to
be delivered by it pursuant to Section 5.01(a) or (b), during the period from
the expiration of the time for delivery thereof until such consolidated
financial statements are delivered.

          Notwithstanding the foregoing, in the event that within twelve months
of the Closing Date the Borrower effects an issuance of Subordinated Debt with
an initial public offering or purchase price which, together with the
outstanding principal amount (after giving effect to any prepayments of the
Series B Bonds made with the proceeds of such Subordinated Debt) of the Series B
Bonds, exceeds $220,000,000, the Applicable Margin will be reduced by 25 basis
points.

          "Applicable Rate" means with respect to the commitment fees payable
           ---------------
hereunder, the applicable rate per annum set forth below based upon the
percentage of the total  Revolving Commitments and Tranche A Commitments which
are unused on such date:
<PAGE>

                                                                               5

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------
Undrawn Commitments as a Percentage of the Total
- ------------------------------------------------
 Revolving Commitments and Tranche A Commitments                Commitment Fee
 -----------------------------------------------                --------------
- ----------------------------------------------------------------------------------------
<S>                                                             <C>
Greater than or equal to 75.0%                                                  1.25%
- ----------------------------------------------------------------------------------------
Greater than or equal to 50.0% but
less than 75.0%                                                                 0.875%
- ----------------------------------------------------------------------------------------
Less than 50%                                                                   0.50%
- ----------------------------------------------------------------------------------------
</TABLE>

          "Assignment and Acceptance" means an assignment and acceptance entered
           -------------------------
into by a Lender and an assignee (with the consent of any party whose consent is
required by Section 9.04), and accepted by the Administrative Agent, in the form
of Exhibit A or any other form approved by the Administrative Agent.

          "AW" means AT&T Wireless PCS, Inc.
           --

          "AW Licenses" has the meaning set forth in the definition of Initial
           -----------
Equity Contributions.

          "Base Station" means a radio electronic hardware cabinet designed to
           ------------
be used in the operation of a System and the equipment appurtenant thereto.

          "Board" means the Board of Governors of the Federal Reserve System of
           -----
the United States of America.

          "Borrower" means TeleCorp PCS, Inc., a Delaware corporation.
           --------

          "Borrowing" means Loans of the same Class and Type, made, converted or
           ---------
continued on the same date and, in the case of Eurodollar Loans, as to which a
single Interest Period is in effect.

          "Borrowing Request" means a request by the Borrower for a Borrowing in
           -----------------
accordance with Section 2.03.

          "BTA" means a Basic Trading Area, as defined in 47 C.F.R. (S)24.202.
           ---

          "Business Day" means any day that is not a Saturday, Sunday or other
           ------------
day on which commercial banks in New York City are authorized or required by law
to remain
<PAGE>

                                                                               6

closed; provided that, when used in connection with a Eurodollar Loan, the term
        --------
"Business Day" shall also exclude any day on which banks are not open for
 ------------
for dealings in dollar deposits in the London interbank market.

          "Capital Expenditures" means, for any period, (a) the additions to
           --------------------
property, plant and equipment and other capital expenditures of the Borrower and
its consolidated Subsidiaries (other than Unrestricted Subsidiaries) that are
(or would be) set forth in a consolidated statement of cash flows of the
Borrower for such period prepared in accordance with GAAP and (b) Capital Lease
Obligations incurred by the Borrower and its consolidated Subsidiaries (other
than Unrestricted Subsidiaries) during such period (other than Capital Lease
Obligations permitted by Section 6.01(a)(vi)).

          "Capital Lease Obligations" of any Person means the obligations of
           -------------------------
such Person to pay rent or other amounts under any lease of (or other
arrangement conveying the right to use) real or personal property, or a
combination thereof, which obligations are required to be classified and
accounted for as capital leases on a balance sheet of such Person under GAAP,
and the amount of such obligations shall be the capitalized amount thereof
determined in accordance with GAAP.

          "Capital Stock" means any and all shares, interests, participations or
           -------------
other equivalents (however designated) of capital stock of a corporation, any
and all equivalent ownership interests in a Person (other than a corporation)
and any and all warrants, rights or options to purchase or subscribe for any of
the foregoing, or any warrants, rights or options to purchase or subscribe for
any such warrants, rights or options.

          "Cash Interest Expense" means, for any period, (a) Consolidated
           ---------------------
Interest Expense for such period, minus (b) the aggregate amount of pay-in-kind
or accreted Consolidated Interest Expense for such period not involving any
payment in cash.

          "Change in Control" means (a) the sale or other disposition by AW of
           -----------------
any Capital Stock of the Borrower prior to the date which is three years from
the Effective Date; (b) the acquisition of ownership, directly or indirectly,
beneficially or of record, by any Person or group (within the meaning of the
Securities Exchange Act of 1934 and the
<PAGE>

                                                                               7

rules of the Securities and Exchange Commission thereunder as in effect on the
date hereof) of shares representing more than 20% of the aggregate ordinary
voting power represented by the issued and outstanding Capital Stock of the
Borrower; (c) occupation of a majority of the seats (other than vacant seats) on
the board of directors of the Borrower by Persons who were not (i) nominated by
the board of directors of the Borrower, (ii) appointed by directors so nominated
or (iii) members of the Board of Directors on the Closing Date or (iv) appointed
in accordance with the terms of the Stockholders Agreement as in effect on the
date hereof; (d) the acquisition of direct or indirect Control of the Borrower
by any Person or group other than Persons owning Capital Stock of the Borrower
on the date hereof and their Affiliates; or (e) Gerald Vento and Thomas Sullivan
not owning, directly or indirectly, shares representing more than a majority of
the aggregate ordinary voting power represented by the issued and outstanding
Capital Stock of the Borrower; provided, however, that neither (A) the sale by
                               --------  -------
AW of all or any of its equity interest in the Borrower subsequent to the date
which is three years from the Effective Date nor (B) the public sale by the
Borrower of newly issued Common Stock in an initial public offering (provided
that the conditions described in clause (e) above do not result therefrom),
shall constitute a Change of Control.

          "Change in Law" means (a) the adoption of any law, rule or regulation
           -------------
after the date of this Agreement, (b) any change in any law, rule or regulation
or in the interpretation or application thereof by any Governmental Authority
after the date of this Agreement or (c) compliance by any Lender or Issuing Bank
(or, for purposes of Section 2.15(b), by any lending office of such Lender or by
such Lender's or Issuing Bank's holding company, if any) with any request,
guideline or directive (whether or not having the force of law) of any
Governmental Authority made or issued after the date of this Agreement.

          "Class", when used in reference to any Loan or Borrowing, refers to
           -----
whether such Loan, or the Loans comprising such Borrowing, are Revolving Loans,
Tranche A Term Loans or Tranche B Term Loans and, when used in reference to any
Commitment, refers to whether such Commitment is a Revolving Commitment, Tranche
A Commitment or Tranche B Commitment.
<PAGE>

                                                                               8

          "Code" means the Internal Revenue Code of 1986, as amended from time
           ----
to time.

          "Collateral" means any and all "Collateral", as defined in any
           ----------
applicable Security Document and shall also include the Mortgaged Properties.

          "Committed Equity" means irrevocable binding commitments to purchase
           ----------------
stock of the Borrower pursuant to the Securities Purchase Agreement.

          "Commitment" means a Revolving Commitment, Tranche A Commitment or
           ----------
Tranche B Commitment, or any combination thereof (as the context requires).

          "Common Stock" means the Common Stock, par value $.01 per share, of
           ------------
the Borrower, including Common Stock designated as Senior Common Stock, "Class A
                                                                         -------
Voting Common Stock", "Class B Non-Voting Common Stock", "Class C Common Stock",
- -------------------    -------------------------------    --------------------
"Class D Common Stock" or "Voting Preference Common Stock".
 --------------------      ------------------------------

          "Communications Act" means the Communications Act of 1934, and any
           ------------------
similar or successor Federal statute, and the rules and regulations and
published policies of the FCC thereunder, all as amended and as the same may be
in effect from time to time.

          "Consents to Assignment" has the meaning set forth in subsection
           ----------------------
4.01(r).

          "Consolidated EBITDA" means, for any period, Consolidated Net Income
           -------------------
plus, to the extent deducted in computing such Consolidated Net Income, the sum
of (a) income or franchise tax expense for such period, (b) Consolidated
Interest Expense, (c) depreciation and amortization expense and (d) any non-cash
charges or non-cash losses, minus, to the extent added in computing such
Consolidated Net Income, (i) any non-cash gains or other non-cash items and (ii)
any income tax credits, all as determined on a consolidated basis with respect
to the Borrower and the Subsidiaries (other than the Unrestricted Subsidiaries)
in accordance with GAAP.

          "Consolidated Interest Expense" means, for any period, the interest
           -----------------------------
expense of the Borrower and the Subsidiaries (other than the Unrestricted
Subsidiaries) for
<PAGE>

                                                                               9

such period determined on a consolidated basis in accordance with GAAP,
including but not limited to the portion of any payments or accruals with
respect to Capital Lease Obligations that are allocable to interest expense.

          "Consolidated Net Income" means, for any period, net income or loss of
           -----------------------
the Borrower and the Subsidiaries (other than the Unrestricted Subsidiaries) for
such period determined on a consolidated basis in accordance with GAAP; provided
                                                                        --------
that there shall be excluded (a) the income of any Person in which any other
Person (other than the Borrower or any of the Subsidiaries (other than the
Unrestricted Subsidiaries) or any director holding qualifying shares in
compliance with applicable law) has a joint interest, except to the extent of
the amount of dividends or other distributions (i) that the Borrower or any of
the Subsidiaries (other than the Unrestricted Subsidiaries) has the power to
cause such Person to make to the Borrower or any Subsidiary (other than the
Unrestricted Subsidiaries) during such period and such dividend or other
distribution is not prohibited by the terms of any agreement binding upon such
Person or otherwise or (ii) that, to the extent not already included in
Consolidated Net Income for any period pursuant to clause (i) above, were
actually paid to the Borrower or any of the Subsidiaries (other than the
Unrestricted Subsidiaries) by such Person during such period, (b) any after tax
gains or losses attributable to sales of assets out of the ordinary course of
business and (c) (to the extent not included in clauses (a) or (b) above) any
extraordinary gains or extraordinary losses.

          "Contractual Obligations" means as to any Person, any provision of any
           -----------------------
security issued by such Person or of any agreement, instrument or other
undertaking to which such Person is a party or by which it or any of its
property is bound.

          "Contributed Equity" means at any time or for any period, (x) the sum
           ------------------
(without duplication) of (a) $100,084,120, the agreed value of the AW Licenses
set forth on Schedule I to the Securities Purchase Agreement, (b) cash proceeds
from sales by the Borrower of Common Stock and Preferred Stock less any payments
made by the Borrower or any Subsidiary with respect to Common Stock or Preferred
Stock (other than payments of additional Common Stock or Preferred Stock), (c)
cash proceeds from the sale to Lucent of the Series A Bonds (less any payments
made by the
<PAGE>

                                                                              10

Borrower or any Subsidiary with respect to the Series A Bonds (other than
payments of additional Series A Bonds)), (d) after consummation of the San Juan
Acquisition, $39,900,000, representing the agreed value of the stock of the
Borrower acquired by AW in connection with the San Juan Acquisition, (e)
$7,347,750, the agreed value of the equity interests in THC contributed to the
Borrower on the Closing Date pursuant to the Securities Purchase Agreement, (f)
after consummation of the THC San Diego Merger, $4,800,000, representing the
agreed value of the stock issued to the existing shareholders of THC San Diego
in connection with the THC San Diego Merger, (g) after consummation of the
Mercury Acquisition, $2,332,645, representing the agreed value of the stock
issued to Mercury PCS in connection with the Mercury Acquisition, (h) after
consummation of the Wireless 2000 Acquisition, $880,000, representing the agreed
value of the stock issued to Wireless 2000, Inc. in connection with the Wireless
2000 Acquisition, (i) after consummation of the LMDS Merger, $3,800,000,
representing the agreed value of the stock of the Borrower issued to the
existing shareholders of Telecorp LMDS Inc. in connection with the LMDS Merger
and (j) the fair market value as reasonably determined by the Administrative
Agent of any other assets contributed to the Borrower in exchange for Capital
Stock of the Borrower minus (y) any amounts (including the fair market value of
any transferred assets, as reasonably determined by the Administrative Agent)
invested by the Borrower or any Restricted Subsidiary in an Unrestricted
Subsidiary.

          "Control" means the possession, directly or indirectly, of the power
           -------
to direct or cause the direction of the management or policies of a Person,
whether through the ability to exercise voting power, by contract or otherwise.
"Controlling" and "Controlled" have meanings correlative thereto.
 -----------       ----------

          "Covered Pops" means the aggregate number of Pops within each
           ------------
geographic area for which facilities owned by the Borrower or its Restricted
Subsidiaries that provide service to such geographic area have achieved
substantial completion.

          "Credit Event" means the making, conversion or continuation of any
           ------------
Borrowing or the issuance or extension of any Letter of Credit.
<PAGE>

                                                                              11

          "Debt Service" means for any period, the sum of (a) Cash Interest
           ------------
Expense for such period plus (b) scheduled principal amortization of Total Debt
                        ----
for such period.

          "Default" means any event or condition which constitutes an Event of
           -------
Default or which upon notice, lapse of time or both would, unless cured or
waived, become an Event of Default.

          "Disclosed Matters" means the actions, suits and proceedings and the
           -----------------
environmental matters disclosed in Schedule 3.06.

          "Disqualifying Transaction" has the meaning set forth in the
           -------------------------
Stockholders Agreement.

          "dollars" or "$" refers to lawful money of the United States of
           -------      -
America.

          "Effective Date" means the date on which the conditions specified in
           --------------
Section 4.01 are satisfied (or waived in accordance with Section 9.02).

          "Environmental Laws" means all laws, rules, regulations, codes,
           ------------------
ordinances, orders, decrees, judgments, injunctions, notices or binding
agreements issued, promulgated or entered into by any Governmental Authority,
relating in any way to the environment, preservation or reclamation of natural
resources, the management, release or threatened release of any Hazardous
Material or to health and safety matters.

          "Environmental Liability" means any liability, contingent or otherwise
           -----------------------
(including any liability for damages, costs of environmental remediation, fines,
penalties or indemnities), of the Borrower or any Subsidiary directly or
indirectly resulting from or based upon (a) violation of any Environmental Law,
(b) the generation, use, handling, transportation, storage, treatment or
disposal of any Hazardous Materials, (c) exposure to any Hazardous Materials,
(d) the release or threatened release of any Hazardous Materials into the
environment or (e) any contract, agreement or other consensual arrangement
pursuant to which liability is assumed or imposed with respect to any of the
foregoing.
<PAGE>

                                                                              12

          "Equipment Subsidiary" means Telecorp Equipment Leasing L.P. and/or
           --------------------
any other Wholly Owned Restricted Subsidiary of the Borrower designated as an
Equipment Subsidiary by notice to the Administrative Agent; provided, however,
                                                            --------  -------
that (i) such Restricted Subsidiary has no obligations or liabilities other than
as permitted by Section 3.13, (ii) all the outstanding Capital Stock of such
Restricted Subsidiary is pledged to the Collateral Agent for the benefit of the
Lenders in accordance with the terms of the Pledge Agreement, (iii) the Borrower
and such Restricted Subsidiary have entered into a Special Purpose Subsidiary
Funding Agreement and (iv) such subsidiary has granted to the Administrative
Agent on behalf of the Lenders a first priority perfected security interest in
all its assets.

          "Equity Participants" means the entities and individuals listed on
           -------------------
Schedule 1.01 hereto.

          "ERISA" means the Employee Retirement Income Security Act of 1974, as
           -----
amended from time to time.

          "ERISA Affiliate" means any trade or business (whether or not
           ---------------
incorporated) that, together with the Borrower, is treated as a single employer
under Section 414(b) or (c) of the Code or, solely for purposes of Section 302
of ERISA and Section 412 of the Code, is treated as a single employer under
Section 414 of the Code.

          "ERISA Event" means (a) any "reportable event", as defined in Section
           -----------
4043 of ERISA or the regulations issued thereunder with respect to a Plan (other
than an event for which the 30-day notice period is waived); (b) the existence
with respect to any Plan of an "accumulated funding deficiency" (as defined in
Section 412 of the Code or Section 302 of ERISA), whether or not waived; (c) the
filing pursuant to Section 412(d) of the Code or Section 303(d) of ERISA of an
application for a waiver of the minimum funding standard with respect to any
Plan; (d) the incurrence by the Borrower or any of its ERISA Affiliates of any
liability under Title IV of ERISA with respect to the termination of any Plan;
(e) the receipt by the Borrower or any ERISA Affiliate from the PBGC or a plan
administrator of any notice relating to an intention to terminate any Plan or
Plans or to appoint a trustee to administer any Plan; (f) the incurrence by the
Borrower or any of its ERISA Affiliates of any liability with respect to the
withdrawal or partial withdrawal from any Plan or Multiemployer Plan;
<PAGE>

                                                                              13

or (g) the receipt by the Borrower or any ERISA Affiliate of any notice, or the
receipt by any Multiemployer Plan from the Borrower or any ERISA Affiliate of
any notice, concerning the imposition of Withdrawal Liability or a determination
that a Multiemployer Plan is, or is expected to be, insolvent or in
reorganization, within the meaning of Title IV of ERISA.

          "Eurodollar", when used in reference to any Loan or Borrowing, refers
           ----------
to whether such Loan, or the Loans comprising such Borrowing, are bearing
interest at a rate determined by reference to the Adjusted LIBO Rate.

          "Event of Default" has the meaning assigned to such term in Article
           ----------------
VII.

          "Excess Cash Flow" means, for any period, the sum of (without
           ----------------
duplication):

          (a) Consolidated Net Income for such period, adjusted to exclude any
     gains or losses attributable to Prepayment Events; plus
                                                        ----

          (b) depreciation, amortization and other non-cash charges or losses
     deducted in determining such Consolidated Net Income for such period; plus
                                                                           ----

          (c) the sum of (i) the amount, if any, by which Net Working Capital
     decreased during such period plus (ii) the amount, if any, by which the
     consolidated deferred revenues of the Borrower and its consolidated
     Subsidiaries (other than the Unrestricted Subsidiaries)  increased during
     such period plus (iii) the aggregate principal amount of Capital Lease
     Obligations and other Indebtedness incurred during such period to finance
     Capital Expenditures, to the extent that mandatory principal payments in
     respect of such Indebtedness would not be excluded from clause (f) below
     when made; minus
                -----

          (d) the sum of (i) any non-cash gains included in determining such
     Consolidated Net Income (or loss) for such period plus (ii) the amount, if
     any, by which Net Working Capital increased during such period plus (iii)
     the amount, if any, by which the consolidated deferred revenues of the
     Borrower and its consolidated
<PAGE>

                                                                              14

     Subsidiaries (other than the Unrestricted Subsidiaries) decreased during
     such period; minus
                  -----

          (e) cash Capital Expenditures for such period; minus
                                                         -----

          (f) the aggregate principal amount of Indebtedness repaid or prepaid
     by the Borrower and its consolidated Subsidiaries (other than the
     Unrestricted Subsidiaries) during such period, excluding (i) Indebtedness
     in respect of Revolving Loans, (ii) Term Loans prepaid pursuant to Section
     2.09(b) or (c), (iii) repayments or prepayments of Indebtedness financed by
     incurring other Indebtedness, to the extent that mandatory principal
     payments in respect of such other Indebtedness would not be excluded from
     this clause (f) when made, (iv) Indebtedness which is permitted to be
     reborrowed or refinanced pursuant to Section 6.01 and (v) Indebtedness owed
     to the Borrower or any Subsidiary; plus
                                        ----

          (g) to the extent not otherwise included in Consolidated Net Income
     for such period, any cash dividends or any other cash distributions paid or
     made by, and received by the Borrower or any Restricted Subsidiary from,
     any Unrestricted Subsidiary during such period.

          "Excluded Assets" means at any time, the collective reference to all
           ---------------
assets of the Borrower or any Subsidiary (other than the Unrestricted
Subsidiaries) then subject to a Lien permitted by sub-Section 6.02(iii)-(vi).

          "Excluded Real Property Assets" means Real Property Assets which
           -----------------------------
constitute Excluded Assets.

          "Excluded Real Property-Related Equipment" means Real Property-Related
           ----------------------------------------
Equipment which constitutes Excluded Assets.

          "Excluded Taxes" means, with respect to the Issuing Bank, the
           --------------
Administrative Agent or any Lender (a) income or franchise Taxes imposed on (or
measured by) its net income by the United States of America, or by the
jurisdiction under the laws of which such recipient is organized or in which its
principal office is located or, in the case of any Lender, in which its
applicable lending
<PAGE>

                                                                              15

office is located or any Governmental Authority of or in any of the foregoing
(including, without limitation, minimum Taxes and Taxes computed under
alternative methods, the principal one of which is based on or measured by net
income), (b) any branch profits Taxes imposed by the United States of America or
any similar Tax imposed by any other jurisdiction in which the Borrower is
located or the Issuing Bank, the Administrative Agent or Lender as applicable,
or organized or any Governmental Authority of or in any of the foregoing, (c) in
the case of a Foreign Lender (other than an assignee pursuant to a request by
the Borrower under Section 2.17(b)), any withholding Tax that is in effect and
would apply to a payment to such Foreign Lender at the time such Foreign Lender
becomes a party to this Agreement (or designates a new lending office), except
to the extent that such Foreign Lender (or its assignor, if any) was entitled,
at the time of designation of a new lending office (or assignment), to receive
additional amounts from the Borrower with respect to such withholding Tax
pursuant to Section 2.15(a), (d) any Taxes to the extent imposed by reason of
the Issuing Bank, Lender or Administrative Agent, as applicable, engaging in
activities in the jurisdiction imposing the Tax that are unrelated to the
transactions contemplated hereby and (e) any Tax that would not have been
imposed but for the failure of a Lender or the Administrative Agent, as
applicable, to comply with the certification requirements described in Section
2.15(e).

          "Expansion Facility Amendment" means an amendment to this Agreement
           ----------------------------
which contains the procedures for borrowing Expansion Term Loans, the
administrative information of the Lenders of such Expansion Loans and other
matters which have no adverse impact on any Lender, which amendment shall be in
form and substance satisfactory to the Administrative Agent.

          "Expansion Term Loans" shall have the meaning assigned thereto in
           --------------------
Section 2.18.

          "Extended Payment Terms Facility" means the agreement between the
           -------------------------------
Borrower and Lucent pursuant to which Lucent has agreed to permit the Borrower
to defer payment on all equipment and services purchased from Lucent by the
Borrower until the earlier of (a) September 30, 1998 and (b) the Closing Date.
<PAGE>

                                                                              16

          "FCC" means the Federal Communications Commission, or any other
           ---
similar or successor agency of the Federal government administering the
Communications Act.

          "FCC Debt" means Indebtedness owed to the United States Treasury
           --------
Department that is incurred in connection with the acquisition of a License.

          "Federal Funds Effective Rate" means, for any day, the weighted
           ----------------------------
average (rounded upwards, if necessary, to the next 1/100 of 1%) of the rates on
overnight Federal funds transactions with members of the Federal Reserve System
arranged by Federal funds brokers, as published on the next succeeding Business
Day by the Federal Reserve Bank of New York, or, if such rate is not so
published for any day that is a Business Day, the average (rounded upwards, if
necessary, to the next 1/100 of 1%) of the quotations for such day for such
transactions received by the Administrative Agent from three Federal funds
brokers of recognized standing selected by it.

          "Financial Officer" means the chief financial officer, principal
           -----------------
accounting officer, treasurer or controller of the Borrower.

          "Fixed Charges" means (a) Debt Service, (b) Capital Expenditures, (c)
           -------------
Taxes and (d) dividends and distributions paid pursuant to Section 6.08(a)(iii).

          "Foreign Lender" means any Lender or Issuing Bank that is organized
           --------------
under the laws of a jurisdiction other than that in which the Borrower is
located.  For purposes of this definition, the United States of America, each
State thereof and the District of Columbia shall be deemed to constitute a
single jurisdiction.

          "Foreign Subsidiary" means any Subsidiary that is  organized under the
           ------------------
laws of a jurisdiction other than the United States of America or any State
thereof or the District of Columbia.

          "Funded Debt" means, as of the date of determination, all Indebtedness
           -----------
for borrowed money of the Borrower and its Restricted Subsidiaries which by its
terms matures more than one year after the date of calculation, and any such
Indebtedness maturing within one year from such date which is renewable or
extendable at the option of the
<PAGE>

                                                                              17

obligor to a date more than one year from such date including, in any event, the
Revolving Loans.

          "GAAP" means generally accepted accounting principles in the United
           ----
States of America.

          "Governmental Authority" means the government of the United States of
           ----------------------
America, any other nation or any political subdivision thereof, whether state or
local, and any agency, authority, instrumentality, regulatory body, court,
central bank or other entity exercising executive, legislative, judicial,
taxing, regulatory or administrative powers or functions of or pertaining to
government.

          "Guarantee" of or by any Person (the "guarantor") means any
           ---------                            ---------
obligation, contingent or otherwise, of the guarantor guaranteeing or having the
economic effect of guaranteeing any Indebtedness or other obligation of any
other Person (the "primary obligor") in any manner, whether directly or
                   ---------------
indirectly, and including any obligation of the guarantor, direct or indirect,
(a) to purchase or pay (or advance or supply funds for the purchase or payment
of) such Indebtedness or other obligation or to purchase (or to advance or
supply funds for the purchase of) any security for the payment thereof, (b) to
purchase or lease property, securities or services for the purpose of assuring
the owner of such Indebtedness or other obligation of the payment thereof, (c)
to maintain working capital, equity capital or any other financial statement
condition or liquidity of the primary obligor so as to enable the primary
obligor to pay such Indebtedness or other obligation or (d) as an account party
in respect of any letter of credit or letter of guaranty issued to support such
Indebtedness or obligation; provided, that the term Guarantee shall not include
                            --------
endorsements for collection or deposit in the ordinary course of business.

          "Guarantee Agreement" means the Guarantee Agreement with respect to
           -------------------
the Obligations substantially in the form of Exhibit C, made by the Subsidiary
Loan Parties in favor of the Administrative Agent for the benefit of the Secured
Parties.

          "Hazardous Materials"  means all explosive or radioactive substances
           -------------------
or wastes and all hazardous or toxic substances, wastes or other pollutants,
including petroleum or petroleum distillates, asbestos or asbestos containing
<PAGE>

                                                                              18

materials, polychlorinated biphenyls, radon gas, infectious or medical wastes
and all other substances or wastes of any nature regulated pursuant to any
Environmental Law.

          "Hedging Agreement" means any interest rate protection agreement,
           -----------------
foreign currency exchange agreement, commodity price protection agreement or
other interest or currency exchange rate or commodity price hedging arrangement.

          "Indebtedness" of any Person means, without duplication, (a) all
           ------------
obligations of such Person for borrowed money, (b) all obligations of such
Person evidenced by bonds, debentures, notes or similar instruments, (c) all
obligations of such Person under conditional sale or other title retention
agreements relating to property acquired by such Person, (e) all obligations of
such Person in respect of the deferred purchase price of property or services
(excluding current accounts payable incurred in the ordinary course of business
and, in the case of property or services purchased pursuant to vendor financing
agreements, accounts payable which are not overdue by more than 30 days if such
accounts are being contested in good faith by the Borrower), (f) all
Indebtedness of others secured by (or for which the holder of such Indebtedness
has an existing right, contingent or otherwise, to be secured by) any Lien on
property owned or acquired by such Person, whether or not the Indebtedness
secured thereby has been assumed, (g) all Guarantees by such Person of
Indebtedness of others, (h) all Capital Lease Obligations of such Person, (i)
all obligations, contingent or otherwise, of such Person as an account party in
respect of letters of credit and letters of guaranty and (j) all obligations,
contingent or otherwise, of such Person in respect of bankers' acceptances.  The
Indebtedness of any Person shall include the Indebtedness of any other entity
(including any partnership in which such Person is a general partner) to the
extent such Person is liable therefor as a result of such Person's ownership
interest in or other relationship with such entity, except to the extent the
terms of such Indebtedness provide that such Person is not liable therefor.

          "Indemnity, Subrogation and Contribution Agreement" means the
           -------------------------------------------------
Indemnity, Subrogation and Contribution Agreement, substantially in the form of
Exhibit F, among the Borrower and the Subsidiary Loan Parties.
<PAGE>

                                                                              19

          "Indemnified Taxes" means Taxes other than Excluded Taxes.
           -----------------

          "Information Memorandum" means the Confidential Information Memorandum
           ----------------------
dated May 1998 relating to the Borrower and the Transactions.

          "Initial Equity Contributions" means (i) AW's contribution to the
           ----------------------------
Borrower of 20 MHz of A or B Block PCS licenses covering the markets and Pops
set forth in Part A of Schedule 3.14 hereto (the "AW Licenses") in exchange for
66,722 shares of Series A Preferred Stock, 34,292 shares of Series D Preferred
Stock, and 33,360 shares of Series F Preferred Stock, (ii) purchases of 124,525
shares (or 129,525 shares if the Supplemental Closing (as defined in the
Securities Purchase Agreement) occurs) of Common Stock and 128,000 shares (or
133,000 shares if the Supplemental Closing occurs) of Series C Preferred Stock
of the Borrower by other investors for cash consideration and irrevocable
commitments of not less than $128,000,000, or, if the Supplemental Closing
occurs, not less than $133,000,000, pursuant to the Securities Purchase
Agreement, (iii) the contribution by the existing shareholders of THC of all
their right, title and interest in the equity of THC to the Borrower in exchange
for Common Stock and Preferred Stock with the result that THC becomes a wholly
owned subsidiary of the Borrower and the Borrower thereby indirectly acquires
Licenses covering the markets and Pops set forth in Part B of Schedule 3.14
hereto,(iv) if the San Juan Acquisition occurs prior to or on the Closing Date,
the contribution by AW of 20 MZ of A Block PCS Licenses covering the markets and
pops set forth in Part D of Schedule 3.14 hereto together with related assets
for approximately $55,000,000 in cash, $2,400,000 in additional Common Stock,
and $37,500,000 in additional Preferred Stock and, in connection therewith, the
purchase by third party investors of additional Common Stock and additional
Preferred Stock for cash consideration of not less than $39,700,000 and (v) if
the THC San Diego Merger occurs prior to or on the Closing Date, the
contributions, purchases and stock issuances described in the definition of "THC
San Diego Merger".

          "Initial Pops" means the aggregate number of Pops covered by the
           ------------
Licenses set forth in Parts A and B of Schedule 3.14 hereto.
<PAGE>

                                                                              20

          "Intercompany THC Loans" means loans made by the Borrower to THC
           ----------------------
evidenced by a promissory note pledged to the Administrative Agent on behalf of
the Lenders pursuant to the Pledge Agreement the proceeds of which are used by
THC to repay FCC Debt of THC.

          "Interest Election Request" means a request by the Borrower to convert
           -------------------------
or continue a Revolving Borrowing or Term Borrowing in accordance with Section
2.05.

          "Interest Payment Date" means (a) with respect to any ABR Loan, the
           ---------------------
last day of each March, June, September and December and (b) with respect to any
Eurodollar Loan, the last day of the Interest Period applicable to the Borrowing
of which such Loan is a part and, in the case of a Eurodollar Borrowing with an
Interest Period of more than three months' duration, each day prior to the last
day of such Interest Period that occurs at intervals of three months' duration.

          "Interest Period" means, with respect to any Eurodollar Borrowing, the
           ---------------
period commencing on the date of such Borrowing and ending on the numerically
corresponding day in the calendar month that is one, two, three or six months
(or, with the consent of each Lender, nine or twelve months) thereafter, as the
Borrower may elect; provided, that (i) if any Interest Period would end on a day
                    --------
other than a Business Day, such Interest Period shall be extended to the next
succeeding Business Day unless such next succeeding Business Day would fall in
the next calendar month, in which case such Interest Period shall end on the
next preceding Business Day and (ii) any Interest Period that commences on the
last Business Day of a calendar month (or on a day for which there is no
numerically corresponding day in the last calendar month of such Interest
Period) shall end on the last Business Day of the last calendar month of such
Interest Period.  For purposes hereof, the date of a Borrowing initially shall
be the date on which such Borrowing is made and thereafter shall be the
effective date of the most recent conversion or continuation of such Borrowing.

          "Issuing Bank" means The Chase Manhattan Bank, in its capacity as an
           ------------
issuer of Letters of Credit hereunder, and any successor Issuing Bank appointed
pursuant to Section 2.19(i).  Each Issuing Bank may, in its discretion, arrange
for one or more Letters of Credit to be issued by
<PAGE>

                                                                              21

Affiliates of such Issuing Bank, in which case the term "Issuing Bank" shall
include any such Affiliate with respect to Letters of Credit issued by such
Affiliate.

          "Issuing Bank Fees" shall have the meaning assigned to such term in
           -----------------
Section 2.10(c).

          "L/C Commitment" shall mean, with respect to any Issuing Bank, the
           --------------
commitment of such Issuing Bank to issue Letters of Credit pursuant to Section
2.19.

          "L/C Disbursement" means a payment made by an Issuing Bank pursuant to
           ----------------
a Letter of Credit.

          "L/C Exposure" means, at any time, the sum of (a) the aggregate
           ------------
undrawn amount of all outstanding Letters of Credit at such time plus (b) the
                                                                 ----
aggregate amount of all L/C Disbursements that have not yet been reimbursed by
or on behalf of the Borrower at such time.

          "L/C Participation Fee" shall have the meaning assigned to such term
           ---------------------
in Section 2.10(c).

          "Lenders" means the Persons listed on Schedule 2.01 and any other
           -------
Person that shall have become a party hereto pursuant to an Assignment and
Acceptance or pursuant to Section 2.18 hereof, other than any such Person that
ceases to be a party hereto pursuant to an Assignment and Acceptance.

          "Letter of Credit" means any letter of credit issued pursuant to this
           ----------------
Agreement.

          "Leverage Ratio" means for any fiscal period, the ratio of (a) Total
           --------------
Debt on the last day of such fiscal period to (b) Annualized EBITDA for the
period ending on the last day of such fiscal period.

          "LIBO Rate" means, with respect to any Eurodollar Borrowing for any
           ---------
Interest Period, the rate appearing on Page 3750 of Dow Jones Market (or on any
successor or substitute page of such service, or any successor to or substitute
for such service, providing rate quotations comparable to those currently
provided on such page of such service, as determined by the Administrative Agent
from time to time for purposes of providing quotations of interest rates
applicable to dollar deposits in the London interbank
<PAGE>

                                                                              22

market) at approximately 11:00 a.m., London time, two Business Days prior to the
commencement of such Interest Period, as the rate for dollar deposits with a
maturity comparable to such Interest Period. In the event that such rate is not
available at such time for any reason, then the "LIBO Rate" with respect to such
                                                 ---------
Eurodollar Borrowing for such Interest Period shall be the rate at which dollar
deposits of $5,000,000 and for a maturity comparable to such Interest Period are
offered by the principal London office of the Administrative Agent in
immediately available funds in the London interbank market at approximately
11:00 a.m., London time, two Business Days prior to the commencement of such
Interest Period.

          "License" means any broadband Personal Communications Services license
           -------
issued by the FCC in connection with the operation of a System.

          "License Subsidiary" means Telecorp PCS, L.L.C. and THC and/or any
           ------------------
other Wholly Owned Restricted Subsidiary of the Borrower designated as a License
Subsidiary by notice to the Administrative Agent; provided, however, that (i)
                                                  --------  -------
such Restricted Subsidiary has no obligations or liabilities other than as
permitted by Section 3.13, (ii) all the outstanding Capital Stock of such
Restricted Subsidiary is pledged to the Collateral Agent for the benefit of the
Lenders in accordance with the terms of the Pledge Agreement and (iii) the
Borrower and such Restricted Subsidiary have entered into a Special Purpose
Subsidiary Funding Agreement.

          "License Related Assets" means assets directly associated with the
           ----------------------
License that is the subject of a License Swap and which constitute part of the
System to be constructed to serve the MTA or BTA covered by such License.

          "License Swap" means (i) any exchange, with another Person (other than
           ------------
an Unrestricted Subsidiary), of a License or Licenses owned by the Borrower
and/or any Restricted Subsidiary, for a License or Licenses owned by such other
Person or (ii) any sale (other than to an Unrestricted Subsidiary) of a License
or Licenses owned by the Borrower and/or any Restricted Subsidiary and the use
of the Net Proceeds received therefrom to purchase a License or Licenses owned
by another Person (other than an Unrestricted Subsidiary); provided, that, (i)
                                                           --------  ----
such purchase occurs not more than 180 days following such sale and either (x)
the
<PAGE>

                                                                              23

Borrower or such Restricted Subsidiary deposits the Net Proceeds received
therefrom in a cash collateral account with the Administrative Agent (who, at
the request of the Borrower, will invest such proceeds in Permitted Investments)
pending such purchase or (y) the Borrower notifies the Administrative Agent
(prior to or simultaneously with such sale) that such sale is part of a License
Swap and repays outstanding Revolving Loans with the Net Proceeds received from
such sale pending the related purchase, (ii) to the extent the Net Proceeds
received from such sale are not used to make a purchase described above, such
sale shall constitute a Prepayment Event rather than a License Swap and the Net
Proceeds therefrom shall be applied in accordance with Section 2.09(b) and (iii)
any License Swap involving an Affiliate of the Borrower must be approved by the
Administrative Agent.

          "Lien" means, with respect to any asset, (a) any mortgage, deed of
           ----
trust, lien, pledge, hypothecation, encumbrance, charge or security interest in,
on or of such asset, (b) the interest of a vendor or a lessor under any
conditional sale agreement, capital lease or title retention agreement (or any
financing lease having substantially the same economic effect as any of the
foregoing) relating to such asset and (c) in the case of securities, any
purchase option, call or similar right of a third party with respect to such
securities.

          "LMDS Merger" means the merger of TeleCorp LMDS, Inc. into THC and in
           -----------
connection therewith the issuance of $3.8 million of stock to the existing
shareholders of TeleCorp LMDS Inc. and the acquisition by THC of 1150 MHz of
Block A or 150 MHz of Block B Licenses for the markets set forth in Part E of
Schedule 3.14 hereto; provided that, such acquisition is consummated on terms
and conditions satisfactory to the Administrative Agent.

          "Loan Documents" means this Agreement, the Letters of Credit, the
           --------------
Guarantee Agreement, the Pledge Agreement, the Security Agreement, the
Indemnity, Subrogation and Contribution Agreement, the Special Purpose
Subsidiary Funding Agreements, the Consents to Assignment and the other Security
Documents.

          "Loan Parties" means the Borrower and the Subsidiary Loan Parties.
           ------------
<PAGE>

                                                                              24

          "Loans" means the loans made by the Lenders to the Borrower pursuant
           -----
to this Agreement.

          "Lucent" means Lucent Technologies Inc.
           ------

          "Lucent Note Purchase Agreement" means the Note Purchase Agreement
           ------------------------------
between the Borrower and Lucent dated May 11, 1998.

          "Management Agreement" means the Management Agreement between TeleCorp
           --------------------
Management Corp. and the Borrower in the form attached as Exhibit A to the
Securities Purchase Agreement as the same may be amended in accordance with
Section 6.11.

          "Master Lease" means the Master Lease, substantially in the form of
           ------------
Exhibit G, among the Borrower, certain of the Restricted Subsidiaries and the
Equipment Subsidiary.

          "Material Adverse Effect" means a material adverse effect on (a) the
           -----------------------
business, assets, results of operations, prospects or financial condition of the
Borrower and the Restricted Subsidiaries taken as a whole, (b) the ability of
any Loan Party to perform any of its obligations under any Loan Document or (c)
the validity or enforceability of any Loan Document or the rights of or remedies
available to the Administrative Agent or the Lenders under any Loan Document;
provided that, on or after the date which is five years from the Effective Date,
- --------
neither (x) the nonrenewal of the Network License Agreement by AW nor (y) the
termination of the Network License Agreement by AW in accordance with its terms
as a result of a Disqualifying Transaction shall be a Material Adverse Effect.

          "Material Indebtedness" means Indebtedness (other than the Loans), or
           ---------------------
obligations in respect of one or more Hedging Agreements, of any one or more of
the Borrower and the Restricted Subsidiaries in an aggregate principal amount
exceeding $5,000,000.  For purposes of determining Material Indebtedness, the
"principal amount" of the obligations of the Borrower or any Restricted
Subsidiary in respect of any Hedging Agreement at any time shall be the maximum
aggregate amount (giving effect to any netting agreements) that the Borrower or
such Restricted Subsidiary would be required to pay if such Hedging Agreement
were terminated at such time.
<PAGE>

                                                                              25

          "Mercury Acquisition" means the purchase by the Borrower from Mercury
           -------------------
PCS, Inc. of 10 MHz of F Block PCS Licenses for the Baton Rouge, Houma, Hammond,
and Lafayette, Louisiana BTAs together with related assets for approximately
$2.3 million of stock of the Borrower and in connection therewith the assumption
of $4,101,456 of FCC Debt; provided that, such acquisition is consummated on
terms and conditions satisfactory to the Administrative Agent.

          "Moody's" means Moody's Investors Service, Inc.
           -------

          "Mortgage" means a mortgage, deed of trust, assignment of leases and
           --------
rents, leasehold mortgage or other security document granting a Lien on any
Mortgaged Property  to secure the Obligations.  Each Mortgage shall be
satisfactory in form and substance to the Administrative Agent.

          "Mortgaged Property" means, initially, each interest in real property
           ------------------
and any improvements thereto owned by a Loan Party and identified on Schedule
3.22, and includes each interest in real property and any improvements thereto
with respect to which a Mortgage is granted pursuant to Section 5.12 or 5.13.

          "MTA" means a Major Trading Area, as defined in 47 C.F.R. (S)24.202.
           ---

          "Multiemployer Plan" means a multiemployer plan as defined in Section
           ------------------
4001(a)(3) of ERISA.

          "Net Proceeds" means, with respect to any event (a) the cash proceeds
           ------------
received in respect of such event including (i) any cash received in respect of
any non-cash proceeds, but only as and when received, (ii) in the case of a
casualty, insurance proceeds, and (iii) in the case of a condemnation or similar
event, condemnation awards and similar payments, net of (b) the sum of (i) all
reasonable fees and out-of-pocket expenses paid by the Borrower and the
Restricted Subsidiaries to third parties (other than Affiliates) in connection
with such event, (ii) in the case of a sale or other disposition of an asset
(including pursuant to a casualty or condemnation), the amount of all payments
required to be made by the Borrower and the Restricted Subsidiaries as a result
of such event to repay Indebtedness (other than Loans) secured by such asset or
<PAGE>

                                                                              26

otherwise subject to mandatory prepayment as a result of such event, and (iii)
the amount of all taxes paid (or reasonably estimated to be payable) by the
Borrower and the Restricted Subsidiaries, and the amount of any reserves
established (and not reversed) by the Borrower and the Restricted Subsidiaries
to fund contingent liabilities reasonably estimated to be payable, in each case
that are directly attributable to such event (as determined reasonably and in
good faith by the chief financial officer of the Borrower).

          "Network" has the meaning set forth in the first recital.
           -------

          "Network License Agreement" means the Network Membership License
           -------------------------
Agreement dated as of the date hereof, between AT&T Corp. and the Borrower, as
the same may be amended, supplemented or otherwise modified from time to time in
accordance with Section 6.11.

          "Net Working Capital" means, at any date, (a) the consolidated current
           -------------------
assets of the Borrower and its consolidated Subsidiaries (other than the
Unrestricted Subsidiaries) as of such date (excluding cash and Permitted
Investments) minus (b) the consolidated current liabilities of the Borrower and
its consolidated Subsidiaries (other than the Unrestricted Subsidiaries) as of
such date (excluding current liabilities in respect of Indebtedness).  Net
Working Capital at any date may be a positive or negative number.  Net Working
Capital increases when it becomes more positive or less negative and decreases
when it becomes less positive or more negative.

          "Obligations" has the meaning assigned to such term in the Guarantee
           -----------
Agreement and the Security Documents.

          "Other Taxes" means any and all present or future stamp or documentary
           -----------
taxes or any other excise or property taxes, charges or similar levies arising
from any payment made under any Loan Document or from the execution, delivery or
enforcement of, or otherwise with respect to, any Loan Document.

          "PBGC" means the Pension Benefit Guaranty Corporation referred to and
           ----
defined in ERISA and any successor entity performing similar functions.
<PAGE>

                                                                              27

          "PCS Documents" means the Securities Purchase Agreement and each of
           -------------
the documents that is an exhibit thereto (including the Network License
Agreement).

          "Perfection Certificate" means a certificate in the form of Annex 2 to
           ----------------------
the Security Agreement or any other form approved by the Administrative Agent.

          "Permitted Encumbrances" means:
           ----------------------

          (a) Liens imposed by law for taxes that are not yet due or are being
     contested in compliance with Section 5.05;

          (b) carriers', warehousemen's, mechanics', materialmen's, repairmen's
     and other like Liens imposed by law, arising in the ordinary course of
     business and securing obligations that are not overdue by more than 60 days
     or are being contested in compliance with Section 5.05;

          (c) pledges and deposits made in the ordinary course of business in
     compliance with workers' compensation, unemployment insurance and other
     social security laws or regulations and deposits securing liability to
     insurance carriers under insurance or self-insurance arrangements;

          (d) deposits to secure the performance of bids, trade contracts,
     leases, statutory obligations, surety and appeal bonds, performance bonds
     and other obligations of a like nature, in each case in the ordinary course
     of business;

          (e) liens of attachments, judgments or awards in respect of judgments
     that do not constitute an Event of Default under clause (k) of Article VII
     and in respect of which adequate reserves have been established in
     accordance with GAAP;

          (f) easements, zoning restrictions, rights-of-way and similar
     encumbrances on real property imposed by law or arising in the ordinary
     course of business that do not secure any monetary obligations and do not
     materially detract from the value of the affected property or interfere
     with the ordinary conduct of business of the Borrower or any Restricted
     Subsidiary;
<PAGE>

                                                                              28

          (g) restrictions on the transfer of assets contained in any License or
     imposed by the Communications Act or comparable state legislation enacted
     after the date hereof;

          (h) leases or subleases granted to others not interfering in any
     material respect with the business of the Borrower and its Restricted
     Subsidiaries taken as a whole and any interest or title of a lessor under
     any lease not prohibited by this Agreement;

          (i) ground leases in respect of real property on which facilities
     owned or leased by the Borrower or its Restricted Subsidiaries are located;

          (j) Liens in favor of a lessor arising from precautionary Uniform
     Commercial Code financing statements filed by such lessor with respect to
     assets leased by the Borrower or any Restricted Subsidiary pursuant to an
     operating lease not prohibited by this Agreement; provided that such Lien
                                                       --------
     shall not apply to any other property or asset of the Borrower or any
     Restricted Subsidiary.

          "Permitted Investments" means:
           ---------------------

          (a) direct obligations of, or obligations the principal of and
     interest on which are unconditionally guaranteed by, the United States of
     America (or by any agency thereof to the extent such obligations are backed
     by the full faith and credit of the United States of America), in each case
     maturing within one year from the date of acquisition thereof;

          (b) investments in commercial paper maturing within 270 days from the
     date of acquisition thereof and having, at such date of acquisition, the
     highest credit rating obtainable from S&P or from Moody's;

          (c) investments in certificates of deposit, banker's acceptances and
     time deposits maturing within 180 days from the date of acquisition thereof
     issued or guaranteed by or placed with, and money market deposit accounts
     issued or offered by, any domestic office of any commercial bank organized
     under the laws of the United States of America or any State thereof which
     has
<PAGE>

                                                                              29

     a combined capital and surplus and undivided profits of not less than
     $500,000,000; and

          (d) fully collateralized repurchase agreements with a term of not more
     than 90 days for securities described in clause (a) above and entered into
     with a financial institution satisfying the criteria described in clause
     (c) above.

          "Person" means any natural person, corporation, limited liability
           ------
company, trust, joint venture, association, company, partnership, Governmental
Authority or other entity.

          "Plan"  means any employee pension benefit plan (other than a
           ----
Multiemployer Plan) subject to the provisions of Title IV of ERISA or Section
412 of the Code or Section 302 of ERISA, and in respect of which the Borrower or
any ERISA Affiliate is (or, if such plan were terminated, would under Section
4069 of ERISA be deemed to be) an "employer" as defined in Section 3(5) of
ERISA.

          "Pledge Agreement" shall mean the Pledge Agreement, substantially in
           ----------------
the form of Exhibit D, between the Borrower, the Subsidiary Loan Parties and the
Administrative Agent for the benefit of the Secured Parties.

          "Pops" means, as of any date, with respect to any BTA or MTA, the
           ----
population of such BTA or MTA as set forth in the Donnelly Marketing Service
Population Guide published in 1995.

          "Preferred Stock" means the Series A Preferred Stock, the Series B
           ---------------
Preferred Stock, the Series C Preferred Stock, the Series D Preferred Stock, the
Series E Preferred Stock and the Series F Preferred Stock.

          "Prepayment Event" means:
           ----------------

          (a) any sale, transfer or other disposition (including pursuant to a
     sale and leaseback transaction) of any property or asset of the Borrower or
     any Restricted Subsidiary, other than (i) dispositions described in clauses
     (a), (b) and (d) of Section 6.06 and (ii) other dispositions resulting in
     aggregate Net Proceeds not exceeding $1,000,000 during any fiscal year of
     the Borrower; or
<PAGE>

                                                                              30

          (b) any casualty or other insured damage to, or any taking under power
     of eminent domain or by condemnation or similar proceeding of, any property
     or asset of the Borrower or any Restricted Subsidiary; provided that, if no
                                                            --------
     Default exists or would result therefrom, such event shall constitute a
     Prepayment Event only to the extent that the Net Proceeds therefrom have
     not been applied, or the Borrower or any Restricted Subsidiary has not
     entered into a binding contractual agreement to apply such Net Proceeds, to
     repair, restore or replace such property or asset within 270 days after
     such event; or

          (c) the issuance by the Borrower or any Restricted Subsidiary of any
     equity securities, or the receipt by the Borrower or any Restricted
     Subsidiary of any capital contribution, other than, in the case of Borrower
     or any Restricted Subsidiary, any such issuance of equity securities to, or
     receipt of any such capital contribution from the Borrower or a Restricted
     Subsidiary; provided that none of the following shall constitute a
                 --------
     Prepayment Event (i) the initial $128,000,000 (or, if the Supplemental
     Closing (as defined in the Securities Purchase Agreement) occurs, the
     initial $133,000,000) contribution and commitment of capital to the
     Borrower pursuant to the Securities Purchase Agreement, (ii) the issuance
     of $39,900,000 of Common Stock and Preferred Stock to AW and $39,700,000 of
     Common Stock and Preferred Stock to certain of the Equity Participants in
     connection with the San Juan Acquisition, (iii) the issuance of $4,000,000
     of stock to the existing stockholders of THC San Diego and $41,000,000 of
     stock to certain of the Equity Participants in connection with the THC San
     Diego Merger and (iv) any issuance or receipt if, after giving effect to
     such issuance or receipt (x) Senior Leverage would be less than 5.00 to
     1.00 and (y) the Borrower would be in Pro Forma Compliance; or

          (d) the incurrence by the Borrower or any Restricted Subsidiary of any
     Indebtedness, other than Indebtedness permitted by Section 6.01; provided
                                                                      --------
     that (i) no such incurrence shall constitute a Prepayment Event if, after
     giving effect to such incurrence Senior Leverage would be less than 5.00 to
     1.00 and (ii) the foregoing shall not relieve the Borrower from any
<PAGE>

                                                                              31

     requirement hereunder to obtain the consent of the Lenders for the
     incurrence of any Indebtedness.

          "Prime Rate" means the rate of interest per annum publicly announced
           ----------
from time to time by The Chase Manhattan Bank as its prime rate in effect at its
principal office in New York City; each change in the Prime Rate shall be
effective from and including the date such change is publicly announced as being
effective.

          "Pro Forma Compliance" shall exist if (a) the Borrower shall be in pro
           --------------------                                              ---
forma compliance with the covenants set forth in Section 6.12 recomputed, with
- -----
respect to income statement items, as of the last day of the most recently ended
fiscal quarter for which financial statements have been delivered in accordance
with subsection 5.01 as if the events with respect to which Pro Forma Compliance
is being measured had occurred on the first day of the twelve-month period
ending on such last day of the most recently ended fiscal quarter for which
financial statements have been delivered and as if Restricted Payments under
Section 6.08(a)(iii) were deductions to EBITDA and (b) no Default or Event of
Default shall exist either immediately prior to the events with respect to which
Pro Forma Compliance is being determined or after giving effect to such events.

          "Pro Rata Percentage" of any Revolving Lender at any time means the
           -------------------
percentage of the Total Revolving Commitment represented by such Lender's
Revolving Commitment.

          "Real Property Assets" means all interests (including leasehold
           --------------------
interests) of the Borrower and its Restricted Subsidiaries in real property.

          "Real Property-Related Equipment" means all equipment (as defined in
           -------------------------------
the UCC) of the Borrower or any Restricted Subsidiary that constitutes a fixture
(as defined in the UCC) on Real Property Assets, excluding Base Stations.

          "Real Property Subsidiary" means Telecorp Realty L.L.C. and/or any
           ------------------------
Wholly Owned Restricted Subsidiary of the Borrower designated by the Borrower as
the Real Property Subsidiary by notice to the Administrative Agent; provided,
                                                                    --------
however, that (i) such Restricted Subsidiary has no
- -------
<PAGE>

                                                                              32

obligations or liabilities other than as permitted by Section 3.13, (ii) all the
outstanding Capital Stock of such Restricted Subsidiary is pledged to the
Collateral Agent for the benefit of the Lenders in accordance with the terms of
the Pledge Agreement and (iii) the Borrower and such Restricted Subsidiary have
entered into a Special Purpose Subsidiary Funding Agreement.

          "Register" has the meaning set forth in Section 9.04.
           --------

          "Related Business" means any business of the type conducted by the
           ----------------
Borrower and its Restricted Subsidiaries on the Effective Date or any business
contemplated to be conducted by the Borrower and its Restricted Subsidiaries in
the business plan delivered to the Lenders prior to the date hereof and any
business reasonably related thereto (including the business contemplated to be
conducted by the Borrower by (S) 7.11(b) of the Stockholders Agreement, subject
to the conditions therein).

          "Related Parties" means, with respect to any specified Person, such
           ---------------
Person's Affiliates and the respective directors, officers, employees, agents
and advisors of such Person and such Person's Affiliates.

          "Required Lenders" means, at any time, Lenders having Revolving
           ----------------
Exposures, Term Loans and unused Commitments representing more than 50% of the
sum of the total Revolving Exposures, outstanding Term Loans and unused
Commitments at such time; provided, however, that for purposes of requesting the
                          --------  -------
Administrative Agent to terminate Commitments during an Event of Default
pursuant to Article VII, Required Lenders shall mean, Lenders having Revolving
Commitments and unused Tranche A Commitments representing more than 50% of the
sum of the aggregate Revolving Commitments and unused Tranche A Commitments at
such time.

          "Requirement of Law" means, as to any Person, the certificate of
           ------------------
incorporation and by-laws, the partnership agreement or other organizational or
governing documents of such Person, and any law, treaty, rule or regulation, or
determination, judgment, writ, injunction, decree or order of an arbitrator or a
court or other Governmental Authority, in each case applicable to or binding
upon such Person or any of its property or to which such Person or any of its
property is subject.
<PAGE>

                                                                              33

          "Resale Agreement" means the Resale Agreement between AW and the
           ----------------
Borrower in the form attached as an exhibit to the Securities Purchase
Agreement, as the same may be amended, supplemented or otherwise modified from
time to time in accordance with Section 6.11.

          "Responsible Officer" means any of the president, chief executive
           -------------------
officer or chief financial officer of the Borrower.

          "Restricted Payment" means any dividend or other distribution (whether
           ------------------
in cash, securities or other property) with respect to any shares of any class
of capital stock of the Borrower or any Restricted Subsidiary, or any payment
(whether in cash, securities or other property), including any sinking fund or
similar deposit, on account of the purchase, redemption, retirement,
acquisition, cancelation or termination of any such shares of capital stock of
the Borrower or any Restricted Subsidiary or any option, warrant or other right
to acquire any such shares of capital stock of the Borrower or any Restricted
Subsidiary.

          "Restricted Subsidiary" means any Subsidiary of the Borrower not
           ---------------------
designated as an Unrestricted Subsidiary.

          "Revolving Availability Period" means the period from and including
           -----------------------------
the Effective Date to but excluding the earlier of the Revolving Maturity Date
and the date of termination of the Revolving Commitments.

          "Revolving Commitment" means, with respect to each Lender, the
           --------------------
commitment, if any, of such Lender to make Revolving Loans hereunder, as such
commitment may be (a) reduced from time to time pursuant to Section 2.06 and (b)
reduced or increased from time to time pursuant to assignments by or to such
Lender pursuant to Section 9.04.  The initial amount of each Lender's Revolving
Commitment is set forth on Schedule 2.01, or in the Assignment and Acceptance
pursuant to which such Lender shall have assumed its Revolving Commitment, as
applicable.  The initial aggregate amount of the Lenders' Revolving Commitments
is $150,000,000.

          "Revolving Exposure" means, with respect to any Lender at any time,
           ------------------
the sum of the outstanding principal
<PAGE>

                                                                              34

amount of such Lender's Revolving Loans plus the aggregate amount at such time
of such Lender's L/C Exposure.

          "Revolving Lender" means a Lender with a Revolving Commitment or, if
           ----------------
the Revolving Commitments have terminated or expired, a Lender with Revolving
Exposure.

          "Revolving Loan" means a Loan made pursuant to clause (c) of Section
           --------------
2.01.

          "Revolving Maturity Date" means the date which is eight and one-half
           -----------------------
years from the Effective Date.

          "Roaming Agreement" means the Intercarrier Roamer Service Agreement
           -----------------
between AW and the Borrower in the form attached as an exhibit to the Securities
Purchase Agreement, as the same may be amended, supplemented or otherwise
modified from time to time in accordance with Section 6.11.

          "S&P" means Standard & Poor's Ratings Group, a division of The McGraw-
           ---
Hill Companies, Inc.

          "San Diego Swap" means the exchange of all or a portion of the
           --------------
Licenses acquired by the Borrower in the THC San Diego Merger for Licenses of
another Person covering certain MTAs or BTAs in the State of Connecticut.

          "San Juan Acquisition" means the merger of Puerto Rico Acquisition
           --------------------
Corp. into the Borrower and the purchase by the Borrower from AW of 20 MHz of A
Block PCS licenses covering the markets and pops set forth in Part D of Schedule
I hereto together with related assets for approximately $55,000,000 in cash,
$2,400,000 in additional Common Stock, and $37,500,000 in additional Preferred
Stock; provided that, (i) such acquisition is consummated on terms and
       --------
conditions satisfactory to the Administrative Agent and (ii) in connection
therewith, certain of the Equity Participants, or other investors reasonably
acceptable to the Administrative Agent, purchase from the Borrower Common Stock
and Preferred Stock for cash consideration of at least $39,700,000.

          "Secured Parties" has the meaning assigned to such term in the
           ---------------
Security Agreement.

          "Secured Real Property Assets" means all Real Property Assets
           ----------------------------
(including Mortgaged Properties) in which
<PAGE>

                                                                              35

the Administrative Agent, for the benefit of the Secured Parties, has a first
priority perfected Mortgage or other first priority perfected security interest
pursuant to the Security Documents.

          "Secured Real Property-Related Equipment" means Real Property-Related
           ---------------------------------------
Equipment in which the Administrative  Agent, for the benefit of the Secured
Parties, has a first priority perfected security interest pursuant to the
Security Documents.

          "Securities Purchase Agreement" means the Securities Purchase
           -----------------------------
Agreement by and among AW, the Borrower and the other parties thereto dated as
of January 23, 1998, including the schedules thereto.

          "Security Agreement" means the Security Agreement among the Borrower,
           ------------------
the Subsidiary Loan Parties and the Administrative Agent, substantially in the
form of Exhibit E.

          "Security Documents" means the Security Agreement, the Pledge
           ------------------
Agreement, the Mortgages and the Consents to Assignment and each other security
agreement or other instrument or document executed and delivered pursuant to any
of the foregoing or Section 5.12 or 5.13 to secure any of the Obligations.

          "Senior Debt" shall mean all Indebtedness of the Borrower and the
           -----------
Restricted Subsidiaries on a consolidated basis other than the Subordinated
Debt.

          "Senior Leverage" means, on any date, the ratio of (a) Senior Debt on
           ---------------
such date to (b) Annualized EBITDA for the most recently ended fiscal quarter
for which financial statements have been delivered in accordance with Section
5.01.

          "Series A Bonds" means the Series A Bonds of the Borrower purchased by
           --------------
Lucent pursuant to the Lucent Note Purchase Agreement.

          "Series A Preferred Stock" means the Series A Preferred Stock, par
           ------------------------
value $.01 per share, of the Borrower.
<PAGE>

                                                                              36

          "Series B Bonds" means the Series B Bonds of the Borrower purchased by
           --------------
Lucent pursuant to the Lucent Note Purchase Agreement.

          "Series B Preferred Stock" means the Series B Preferred Stock, par
           ------------------------
value $.01 per share, of the Borrower.

          "Series C Preferred Stock" means the Series C Preferred Stock, par
           ------------------------
value $.01 per share, of the Borrower.

          "Series D Preferred Stock" means the Series D Preferred Stock, par
           ------------------------
value $.01 per share, of the Borrower.

          "Series E Preferred Stock" means the Series E Preferred Stock, par
           ------------------------
value $.01 per share, of the Borrower.

          "Series F Preferred Stock" means the Series F Preferred Stock, par
           ------------------------
value $.01 per share, of the Borrower.

          "Special Purpose Subsidiary" means each License Subsidiary, the
           --------------------------
Equipment Subsidiary, and the Real Property Subsidiary.

          "Special Purpose Subsidiary Funding Agreement" means an agreement
           --------------------------------------------
between the Borrower and Telecorp Communications, Inc. and each Special Purpose
Subsidiary whereby (a) such Special Purpose Subsidiary agrees to provide to the
Borrower the benefit of the use of such Special Purpose Subsidiary's assets, (b)
the Borrower agrees to pay to such Special Purpose Subsidiary an amount equal to
all liabilities of such Special Purpose Subsidiary less any amounts contributed
by the Borrower to the equity of such Special Purpose Subsidiary for the purpose
of paying such liabilities (provided, that with respect to the Equipment
Subsidiary such payments may be in the form of payments under leases), (c) the
Borrower agrees to cause all Contractual Obligations of such Special Purpose
Subsidiary to be performed and all Requirements of Law of such Special Purpose
Subsidiary to be complied with and (d) the Borrower and such Special Purpose
Subsidiary agree, for the benefit of the Administrative Agent and the Secured
Parties, to the assignment by each of its rights thereunder to the
Administrative Agent for the benefit of the Secured Parties.

          "Statutory Reserve Rate" means a fraction (expressed as a decimal),
           ----------------------
the numerator of which is the number one and the denominator of which is the
number one
<PAGE>

                                                                              37

minus the aggregate of the maximum reserve percentages (including any marginal,
special, emergency or supplemental reserves) expressed as a decimal established
by the Board to which the Administrative Agent is subject for eurocurrency
funding (currently referred to as "Eurocurrency Liabilities" in Regulation D of
the Board). Such reserve percentages shall include those imposed pursuant to
such Regulation D. Eurodollar Loans shall be deemed to constitute eurocurrency
funding and to be subject to such reserve requirements without benefit of or
credit for proration, exemptions or offsets that may be available from time to
time to any Lender under such Regulation D or any comparable regulation. The
Statutory Reserve Rate shall be adjusted automatically on and as of the
effective date of any change in any reserve percentage.

          "Stockholders Agreement" means the Stockholders' Agreement among AW,
           ----------------------
the Borrower and the other parties thereto dated as of the date hereof.

          "Subordinated Debt" means high yield subordinated debt issued by the
           -----------------
Borrower (other than the Series A Bonds and the Series B Bonds) on terms
reasonably acceptable to the Required Lenders maturing on a date that is not
earlier than the date which is six months subsequent to the Tranche B Maturity
Date with a minimum initial public offering or purchase price of $220,000,000
and the Indebtedness represented thereby and refinancings of such Indebtedness;
provided that (i) any such refinancing Indebtedness (a) shall not have a greater
outstanding principal amount, an earlier maturity date or a decreased weighted
average life than the Subordinated Debt refinanced and (b) shall be subordinated
to the Indebtedness created under the Loan Documents to at least the extent of,
and shall otherwise be issued on terms no less favorable to the Lenders than,
the Subordinated Debt refinanced and (ii) the proceeds of such refinancing
Indebtedness shall be used solely to repay the Subordinated Debt refinanced
thereby and fees and expenses in connection therewith.

          "Subordinated Debt Documents" means the indenture under which the
           ---------------------------
Subordinated Debt, if any, is issued and all other instruments, agreements and
other documents evidencing or governing the Subordinated Debt, if any, or
providing for any Guarantee or other right in respect thereof.
<PAGE>

                                                                              38

          "Subscribers" means as of any date, all customers then receiving
           -----------
Wireless Services from the Borrower or any of its Restricted Subsidiaries none
of the subscriber payments (other than those disputed in good faith by such
customer) of which are, as of such date, past due more than (x) prior to March
31, 1999, 90 days and (y) after March 31, 1999, 60 days (or past due for more
than such shorter period of time as the Borrower may have established for
accounting or credit policy purposes for treating a customer as not being in
good standing).

          "subsidiary" means, with respect to any Person (the "parent") at any
           ----------                                          ------
date, any corporation, limited liability company, partnership, association or
other entity the accounts of which would be consolidated with those of the
parent in the parent's consolidated financial statements if such financial
statements were prepared in accordance with GAAP as of such date, as well as any
other corporation, limited liability company, partnership, association or other
entity (a) of which securities or other ownership interests representing more
than 50% of the equity or more than 50% of the ordinary voting power or, in the
case of a partnership, more than 50% of the general partnership interests are,
as of such date, owned, controlled or held, or (b) that is, as of such date,
otherwise Controlled, by the parent or one or more subsidiaries of the parent or
by the parent and one or more subsidiaries of the parent.

          "Subsidiary" means any subsidiary of the Borrower.
           ----------

          "Subsidiary Loan Party" means any Restricted Subsidiary that is not a
           ---------------------
Foreign Subsidiary.

          "Swap of License Related Assets" means (i) any exchange in connection
           ------------------------------
with a License Swap, with any Person (other than an Unrestricted Subsidiary), of
License Related Assets owned by the Borrower and/or any Restricted Subsidiary,
for License Related Assets owned by such other Person or (ii) any sale (other
than to an Unrestricted Subsidiary) of License Related Assets owned by the
Borrower and/or any Restricted Subsidiary in connection with a License Swap and
the use of the Net Proceeds received therefrom to purchase License Related
Assets owned by another Person (other than an Unrestricted Subsidiary) in
connection therewith; provided, that, (i) such purchase occurs not more than 180
                      --------  ----
days following such sale and either (x) the Borrower or such Restricted
Subsidiary deposits the
<PAGE>

                                                                              39

Net Proceeds received therefrom in a cash collateral account with the
Administrative Agent pending such purchase or (y) the Borrower notifies the
Administrative Agent (prior to or simultaneously with such sale) that such sale
is part of a Swap of License Related Assets and repays outstanding Revolving
Loans with the Net Proceeds received from such sale pending the related purchase
and (ii) to the extent the Net Proceeds received from such sale are not used to
make a purchase described above, such sale shall constitute a Prepayment Event
rather than a Swap of License Related Assets and the Net Proceeds therefrom
shall be applied in accordance with Section 2.09(b).

          "System" means, as to any Person, assets constituting a radio
           ------
communications system authorized under the rules for wireless communications
services (including any license and the network, marketing, distribution, sales,
customer interface and operations functions relating thereto) owned and operated
by such Person.

          "Taxes" means any and all present or future taxes, levies, imposts,
           -----
duties, deductions, charges or withholdings imposed by any Governmental
Authority.

          "Term Loans" means Tranche A Term Loans and Tranche B Term Loans.
           ----------

          "THC" means TeleCorp Holding Corp., Inc., a Delaware corporation and
           ---
an Subsidiary of the Borrower.

          "THC San Diego" means THC of San Diego, Inc., a Delaware corporation.
           -------------

          "THC San Diego Merger" means the merger of THC San Diego into THC and
           --------------------
in connection therewith the issuance by the Borrower of approximately $4.8
million of stock to the existing stockholders of THC San Diego and the
contribution to wholly owned subsidiaries of the Borrower by THC San Diego of a
10 MHz F Block PCS License for the San Diego, BTA and certain related assets;
provided that such merger is consummated on terms and conditions satisfactory to
- --------
the Administrative Agent.

          "Total Capital" means, at any date, the sum, without duplication, of
           -------------
(a) Funded Debt outstanding on such date plus (b) Contributed Equity on such
                                         ----
date plus (c) Committed Equity on such date.
<PAGE>

                                                                              40

          "Total Debt" shall mean, at any time, all Indebtedness of the Borrower
           ----------
and the Restricted Subsidiaries as determined on a consolidated basis in
accordance with GAAP.

          "Total Revolving Commitment" means, at any time, the aggregate amount
           --------------------------
of the Revolving Commitments, as in effect at such time.

          "Tranche A Availability Period" means the period from and including
           -----------------------------
the Effective Date to but excluding the earlier of the third anniversary of the
Effective Date and the date of termination of the Tranche A Commitments.

          "Tranche A Commitment" means, with respect to each Lender, the
           --------------------
commitment, if any, of such Lender to make Tranche A Term Loans hereunder,
expressed as an amount representing the maximum principal amount of the Tranche
A Term Loans to be made by such Lender hereunder, as such commitment may be (a)
reduced from time to time pursuant to Section 2.06 and (b) reduced or increased
from time to time pursuant to assignments by or to such Lender pursuant to
Section 9.04.  The initial amount of each Lender's Tranche A Commitment is set
forth on Schedule 2.01, or in the Assignment and Acceptance pursuant to which
such Lender shall have assumed its Tranche A Commitment, as applicable.  The
initial aggregate amount of the Lenders' Tranche A Commitments is $150,000,000.
If on the second anniversary of the Closing Date the aggregate unused Tranche A
Commitments exceed $50,000,000, the aggregate Tranche A Commitments will be
automatically reduced on such date by the amount of such excess.

          "Tranche A Lender" means a Lender with a Tranche A Commitment or an
           ----------------
outstanding Tranche A Term Loan.

          "Tranche A Maturity Date" means the date that is eight and one-half
           -----------------------
years from the Effective Date.

          "Tranche A Term Loan" means a Loan made pursuant to clause (a) of
           -------------------
Section 2.01.

          "Tranche B Commitment" means, with respect to each Lender, the
           --------------------
commitment, if any, of such Lender to make Tranche B Term Loans hereunder,
expressed as an amount representing the maximum principal amount of the Tranche
B
<PAGE>

                                                                              41

Term Loans to be made by such Lender hereunder, as such commitment may be (a)
reduced from time to time pursuant to Section 2.06 and (b) reduced or increased
from time to time pursuant to assignments by or to such Lender pursuant to
Section 9.04.  The initial amount of each Lender's Tranche B Commitment is set
forth on Schedule 2.01, or in the Assignment and Acceptance pursuant to which
such Lender shall have assumed its Tranche B Commitment, as applicable.  The
initial aggregate amount of the Lenders' Tranche B Commitments is $225,000,000.

          "Tranche B Lender" means a Lender with a Tranche B Commitment or an
           ----------------
outstanding Tranche B Term Loan.

          "Tranche B Maturity Date" means the date that is nine and one-half
           -----------------------
years from the Effective Date.

          "Tranche B Rate" means, with respect to any Tranche B Term Loan (a)
           --------------
2.25% per annum, in the case of an ABR Loan, and (b) 3.25% per annum, in the
case of a Eurodollar Loan; provided, however, that in the event that within
                           --------  -------
twelve months of the Closing Date the Borrower effects an issuance of
Subordinated Debt with an initial public offering or purchase price which,
together with the outstanding principal amount (after giving effect to any
prepayments of the Series B Bonds made with the proceeds of such Subordinated
Debt) of the Series B Bonds, exceeds $220,000,000, the Tranche B Rate will be
reduced by 25 basis points.

          "Tranche B Term Loan" means a Loan made pursuant to clause (b) of
           -------------------
Section 2.01.

          "Transactions" means (a) the execution, delivery and performance by
           ------------
each Loan Party of the Loan Documents to which it is to be a party, the
borrowing of Loans and the use of the proceeds thereof requests for issuances of
Letters of Credit, (b) the execution, delivery and performance by each Loan
Party of the Subordinated Debt Documents, if any, to which it is to be a party,
the issuance of the Subordinated Debt, if any, and the use of the proceeds
thereof, (c) the Initial Equity Contributions, (d) the Supplemental Closing (as
defined in the Securities Purchase Agreement), if any, and (e) the purchase by
the Borrower and sale by AW of 10 MHz of D Block licenses covering the markets
and pops set forth in Part C of Schedule 3.14 hereto for $21,000,000 in cash.
<PAGE>

                                                                              42

          "Type", when used in reference to any Loan or Borrowing, refers to
           ----
whether the rate of interest on such Loan, or on the Loans comprising such
Borrowing, is determined by reference to the Adjusted LIBO Rate or the Alternate
Base Rate.

          "UCC" mean the Uniform Commercial Code of the State of New York.
           ---

          "Unrestricted Subsidiary" means any subsidiary of the Borrower or any
           -----------------------
other direct or indirect investment by the Borrower in the Capital Stock of any
other person so long as (a) at the time such subsidiary is acquired or created
or such investment is made (i) no Default or Event of Default shall have
occurred and be continuing or would result therefrom, (ii) the Borrower shall
have notified the Administrative Agent of its acquisition or creation of such
subsidiary or its making of such investment and its ownership interest therein
and its designation thereof as an Unrestricted Subsidiary concurrently with such
acquisition, creation or investment and the intended purposes of such subsidiary
or investment, (iii) all transactions related thereto shall be consummated in
accordance with applicable laws, (iv) the Borrower shall be in Pro Forma
Compliance and (b) at all times (i) neither the Borrower nor any Restricted
Subsidiary shall have any contingent liability in respect thereof (other than
any contingent tax liabilities in respect of which there shall exist a tax
sharing agreement with the other owners of such Unrestricted Subsidiary
providing for an allocation of tax liabilities and benefits customary in similar
circumstances), (ii) any management or service provided by the Borrower or any
Restricted Subsidiary to such subsidiary or investment shall be provided in
consideration of cash remuneration in an amount not less than could have been
obtained from a third party on an arms'-length basis and (iii) such subsidiary
or investment shall be capitalized solely from (A) capital contributed to the
Borrower specifically for such purpose and not required to be contributed to the
Borrower pursuant to the Securities Purchase Agreement in an aggregate amount
for all such Unrestricted Subsidiaries not to exceed $50,000,000 to be
substantially contemporaneously contributed by the Borrower to such Unrestricted
Subsidiary or used to effect its acquisition, as the case may be, (B)
investments by persons other than the Borrower or any Restricted Subsidiary and
(C) the proceeds of Indebtedness
<PAGE>

                                                                              43

of persons other than the Borrower or any Restricted Subsidiary.

          "Wholly Owned Subsidiary" of any Person shall mean a subsidiary of
           -----------------------
such Person of which securities (except for directors' qualifying shares) or
other ownership interests representing 100% of the equity, 100% of the ordinary
voting power or 100% of the general partnership interests are, at the time any
determination is being made, owned, controlled or held by such Person or one or
more wholly owned subsidiaries of such Person or by such Person and one or more
wholly owned subsidiaries of such Person.

          "Wireless 2000 Acquisition" means the purchase by the Borrower from
           -------------------------
Wireless 2000, Inc. of 15 MHz of C Block PCS Licenses for the Monroe, Alexandria
and Lake Charles Louisiana BTAs for approximately $880,000 of stock of the
Borrower and in connection therewith the assumption of $7,000,000 of FCC Debt;
provided that, such acquisition is consummated on terms and conditions
satisfactory to the Administrative Agent.

          "Withdrawal Liability" means liability to a Multiemployer Plan as a
           --------------------
result of a complete or partial withdrawal from such Multiemployer Plan, as such
terms are defined in Part I of Subtitle E of Title IV of ERISA.

          "Wireless Services" means broadband personal communications services
           -----------------
provided in one or more Systems (including cellular services provided on the 850
MHZ band to the extent such services constitute a Related Business).

          SECTION 1.02.  Classification of Loans and Borrowings.  For purposes
                         ---------------------------------------
of this Agreement, Loans may be classified and referred to by Class (e.g., a
                                                                     ----
"Revolving Loan") or by Type (e.g., a "Eurodollar Loan") or by Class and Type
                              ----
(e.g., a "Eurodollar Revolving Loan").  Borrowings also may be classified and
- -----
referred to by Class (e.g., a "Revolving Borrowing") or by Type (e.g., a
                      ----                                       ----
"Eurodollar Borrowing") or by Class and Type (e.g., a "Eurodollar Revolving
                                              ----
Borrowing").

          SECTION 1.03.  Terms Generally.  The definitions of terms herein shall
                         ----------------
apply equally to the singular and plural forms of the terms defined.  Whenever
the context may require, any pronoun shall include the corresponding masculine,
feminine and neuter forms.  The words "include",
<PAGE>

                                                                              44

"includes" and "including" shall be deemed to be followed by the phrase "without
limitation". The word "will" shall be construed to have the same meaning and
effect as the word "shall". Unless the context requires otherwise (a) any
definition of or reference to any agreement, instrument or other document herein
shall be construed as referring to such agreement, instrument or other document
as from time to time amended, supplemented or otherwise modified (subject to any
restrictions on such amendments, supplements or modifications set forth herein),
(b) any reference herein to any Person shall be construed to include such
Person's successors and assigns, (c) the words "herein", "hereof" and
"hereunder", and words of similar import, shall be construed to refer to this
Agreement in its entirety and not to any particular provision hereof, (d) all
references herein to Articles, Sections, Exhibits and Schedules shall be
construed to refer to Articles and Sections of, and Exhibits and Schedules to,
this Agreement and (e) the words "asset" and "property" shall be construed to
have the same meaning and effect and to refer to any and all tangible and
intangible assets and properties, including cash, securities, accounts and
contract rights.

          SECTION 1.04.  Accounting Terms; GAAP.  Except as otherwise expressly
                         -----------------------
provided herein, all terms of an accounting or financial nature shall be
construed in accordance with GAAP, as in effect from time to time; provided
                                                                   --------
that, if the Borrower notifies the Administrative Agent that the Borrower
requests an amendment to any provision hereof to eliminate the effect of any
change occurring after the date hereof in GAAP or in the application thereof on
the operation of such provision (or if the Administrative Agent notifies the
Borrower that the Required Lenders request an amendment to any provision hereof
for such purpose), regardless of whether any such notice is given before or
after such change in GAAP or in the application thereof, then such provision
shall be interpreted on the basis of GAAP as in effect and applied immediately
before such change shall have become effective until such notice shall have been
withdrawn or such provision amended in accordance herewith.
<PAGE>

                                                                              45

                                  ARTICLE II

                                  The Credits
                                  -----------

          SECTION 2.01.  Commitments.  Subject to the terms and conditions set
                         ------------
forth herein, each Lender agrees, severally and not jointly, (a) to make up to
ten Tranche A Term Loans to the Borrower during the Tranche A Availability
Period in an aggregate principal amount not exceeding its Tranche A Commitment,
(b) to make Tranche B Term Loans to the Borrower on the Effective Date in a
principal amount not exceeding its Tranche B Commitment and (c) to make
Revolving Loans to the Borrower from time to time during the Revolving
Availability Period in an aggregate principal amount that will not result in
such Lender's Revolving Exposure exceeding such Lender's Revolving Commitment.
Within the foregoing limits and subject to the terms and conditions set forth
herein, the Borrower may borrow, prepay and reborrow Revolving Loans.  Amounts
repaid or prepaid in respect of Term Loans may not be reborrowed.

          SECTION 2.02.  Loans and Borrowings.  (a)  Each  Loan shall be made as
                         ---------------------
part of a Borrowing consisting of Loans of the same Class and Type made by the
Lenders ratably in accordance with their respective Commitments of the
applicable Class.  The failure of any Lender to make any Loan required to be
made by it shall not relieve any other Lender of its obligations hereunder;
provided that the Commitments of the Lenders are several and no Lender shall be
- --------
responsible for any other Lender's failure to make Loans as required.

          (b)  Subject to Section 2.12, each Revolving Borrowing and Term
Borrowing shall be comprised entirely of ABR Loans or Eurodollar Loans as the
Borrower may request in accordance herewith.  Each Lender at its option may make
any Eurodollar Loan by causing any domestic or foreign branch or Affiliate of
such Lender to make such Loan; provided that any exercise of such option shall
                               --------
not affect the obligation of the Borrower to repay such Loan in accordance with
the terms of this Agreement.

          (c)  At the commencement of each Interest Period for any Eurodollar
Borrowing, such Borrowing shall be in an aggregate amount that is an integral
multiple of $1,000,000 and not less than $5,000,000.  At the time that each ABR
Revolving Borrowing is made, such Borrowing shall be in an
<PAGE>

                                                                              46

aggregate amount that is an integral multiple of $1,000,000 and not less than
$2,000,000; provided that an ABR Revolving Borrowing may be in an aggregate
            --------
amount that is equal to the entire unused balance of the total Revolving
Commitments. Borrowings of more than one Type and Class may be outstanding at
the same time; provided that there shall not at any time be more than a total of
               --------
10 Eurodollar Borrowings outstanding.

          (d)  Notwithstanding any other provision of this Agreement, the
Borrower shall not be entitled to request, or to elect to convert or continue,
any Borrowing if the Interest Period requested with respect thereto would end
after the Revolving Maturity Date, Tranche A Maturity Date or Tranche B Maturity
Date, as applicable.

          (e)  If the Issuing Bank shall not have received from the Borrower the
payment required to be made by Section 2.19(e) within the time specified in such
Section, such Issuing Bank will promptly notify the Administrative Agent of the
L/C Disbursement and the Administrative Agent will promptly notify each
Revolving Lender of such L/C Disbursement and its Pro Rata Percentage thereof.
Each Revolving Lender shall pay by wire transfer of immediately available funds
to the Administrative Agent not later than 3:00 p.m., New York City time, on
such date (or, if such Revolving Lender shall have received such notice later
than 12:00 (noon), New York City time, on any day, not later than 10:00 a.m.,
New York City time, on the immediately following Business Day), an amount equal
to such Lender's Pro Rata Percentage of such L/C Disbursement (it being
understood that such amount shall be deemed to constitute an ABR Revolving Loan
of such Lender and such payment shall be deemed to have reduced the L/C
Exposure), and the Administrative Agent will promptly pay to the Issuing Bank
amounts so received by it from the Revolving Lenders.  The Administrative Agent
will promptly pay to the Issuing Bank any amounts received by it from the
Borrower pursuant to Section 2.19(e) prior to the time that any Revolving Lender
makes any payment pursuant to this paragraph (e); any such amounts received by
the Administrative Agent thereafter will be promptly remitted by the
Administrative Agent to the Revolving Lenders that shall have made such payments
and to the Issuing Bank, as their interests may appear.  If any Revolving Lender
shall not have made its Pro Rata Percentage of such L/C Disbursement available
to the Administrative Agent as provided above, such Lender and the Borrower
<PAGE>

                                                                              47

severally agree to pay interest on such amount, for each day from and including
the date such amount is required to be paid in accordance with this paragraph to
but excluding the date such amount is paid, to the Administrative Agent for the
account of the Issuing Bank at (i) in the case of the Borrower, a rate per annum
equal to the interest rate applicable to Revolving Loans pursuant to Section
2.11(a), and (ii) in the case of such Lender, for the first such day, the
Federal Funds Effective Rate, and for each day thereafter, the Alternate Base
Rate.

          SECTION 2.03.  Requests for Borrowings.  To request a Revolving
                         ------------------------
Borrowing or Term Borrowing, the Borrower shall notify the Administrative Agent
of such request by telephone (a) in the case of a Eurodollar Borrowing, not
later than 11:00 a.m., New York City time, three Business Days before the date
of the proposed Borrowing or (b) in the case of an ABR Borrowing, not later than
11:00 a.m., New York City time, one Business Day before the date of the proposed
Borrowing.  Each such telephonic Borrowing Request shall be irrevocable and
shall be confirmed promptly by hand delivery or telecopy to the Administrative
Agent of a written Borrowing Request in a form approved by the Administrative
Agent and signed by the Borrower.  Each such telephonic and written Borrowing
Request shall specify the following information in compliance with Section 2.02:

          (i) whether the requested Borrowing is to be a Revolving Borrowing,
     Tranche A Term Borrowing or Tranche B Term Borrowing;

          (ii)   the aggregate amount of such Borrowing;

          (iii)  the date of such Borrowing, which shall be a Business Day;

          (iv)   whether such Borrowing is to be an ABR Borrowing or a
     Eurodollar Borrowing;

          (v)    in the case of a Eurodollar Borrowing, the initial Interest
     Period to be applicable thereto, which shall be a period contemplated by
     the definition of the term "Interest Period"; and
<PAGE>

                                                                              48

          (vi) the location and number of the Borrower's account to which funds
     are to be disbursed, which shall comply with the requirements of Section
     2.06.

If no election as to the Type of Borrowing is specified, then the requested
Borrowing shall be an ABR Borrowing.  If no Interest Period is specified with
respect to any requested Eurodollar Revolving Borrowing, then the Borrower shall
be deemed to have selected an Interest Period of one month's duration.  Promptly
following receipt of a  Borrowing Request in accordance with this Section, the
Administrative Agent shall advise each Lender of the details thereof and of the
amount of such Lender's Loan to be made as part of the requested Borrowing.

          SECTION 2.04.  Funding of Borrowings.  (a)  Each Lender shall make
                         ----------------------
each Loan to be made by it hereunder on the proposed date thereof by wire
transfer of immediately available funds by 12:00 noon, New York City time, to
the account of the Administrative Agent most recently designated by it for such
purpose by notice to the Lenders.  The Administrative Agent will make such Loans
available to the Borrower by promptly crediting the amounts so received, in like
funds, to an account of the Borrower maintained with the Administrative Agent in
New York City and designated by the Borrower in the applicable Borrowing
Request.

          (b)  Unless the Administrative Agent shall have received notice from a
Lender prior to the proposed date of any Borrowing that such Lender will not
make available to the Administrative Agent such Lender's share of such
Borrowing, the Administrative Agent may assume that such Lender has made such
share available on such date in accordance with paragraph (a) of this Section
and may, in reliance upon such assumption, make available to the Borrower a
corresponding amount.  In such event, if a Lender has not in fact made its share
of the applicable Borrowing available to the Administrative Agent, then the
applicable Lender and the Borrower severally agree to pay to the Administrative
Agent forthwith on demand such corresponding amount with interest thereon, for
each day from and including the date such amount is made available to the
Borrower to but excluding the date of payment to the Administrative Agent, at
(i) in the case of such Lender, the greater of the Federal Funds Effective Rate
and a rate determined by the Administrative Agent in accordance with banking
industry rules on interbank compensation or (ii) in
<PAGE>

                                                                              49

the case of the Borrower, the interest rate applicable to ABR Loans. If such
Lender pays such amount to the Administrative Agent, then such amount shall
constitute such Lender's Loan included in such Borrowing.

          SECTION 2.05.  Interest Elections.  (a)  Each Revolving Borrowing and
                         -------------------
Term Borrowing initially shall be of the Type specified in the applicable
Borrowing Request and, in the case of a Eurodollar Borrowing, shall have an
initial Interest Period as specified in such Borrowing Request.  Thereafter, the
Borrower may elect to convert such Borrowing to a different Type or to continue
such Borrowing and, in the case of a Eurodollar Borrowing, may elect Interest
Periods therefor, all as provided in this Section.  The Borrower may elect
different options with respect to different portions of the affected Borrowing,
in which case each such portion shall be allocated ratably among the Lenders
holding the Loans comprising such Borrowing, and the Loans comprising each such
portion shall be considered a separate Borrowing.

          (b)  To make an election pursuant to this Section, the Borrower shall
notify the Administrative Agent of such election by telephone by the time that a
Borrowing Request would be required under Section 2.03 if the Borrower were
requesting a Revolving Borrowing of the Type resulting from such election to be
made on the effective date of such election.  Each such telephonic Interest
Election Request shall be irrevocable and shall be confirmed promptly by hand
delivery or telecopy to the Administrative Agent of a written Interest Election
Request in a form approved by the Administrative Agent and signed by the
Borrower.

          (c)  Each telephonic and written Interest Election Request shall
specify the following information in compliance with Section 2.02 and paragraph
(f) of this Section:

          (i) the Borrowing to which such Interest Election Request applies and,
     if different options are being elected with respect to different portions
     thereof, the portions thereof to be allocated to each resulting Borrowing
     (in which case the information to be specified pursuant to clauses (iii)
     and (iv) below shall be specified for each resulting Borrowing);
<PAGE>

                                                                              50

          (ii)   the effective date of the election made pursuant to such
     Interest Election Request, which shall be a Business Day;

          (iii)  whether the resulting Borrowing is to be an ABR Borrowing or a
     Eurodollar Borrowing; and

          (iv)   if the resulting Borrowing is a Eurodollar Borrowing, the
     Interest Period to be applicable thereto after giving effect to such
     election, which shall be a period contemplated by the definition of the
     term "Interest Period".

If any such Interest Election Request requests a Eurodollar Borrowing but does
not specify an Interest Period, then the Borrower shall be deemed to have
selected an Interest Period of one month's duration.

          (d)  Promptly following receipt of an Interest Election Request, the
Administrative Agent shall advise each Lender of the details thereof and of such
Lender's portion of each resulting Borrowing.

          (e)  If the Borrower fails to deliver a timely Interest Election
Request with respect to a Eurodollar Borrowing prior to the end of the Interest
Period applicable thereto, then, unless such Borrowing is repaid as provided
herein, at the end of such Interest Period such Borrowing shall be converted to
an ABR Borrowing.  Notwithstanding any contrary provision hereof, if an Event of
Default has occurred and is continuing and the Administrative Agent, at the
request of the Required Lenders, so notifies the Borrower, then, so long as an
Event of Default is continuing (i) no outstanding Borrowing may be converted to
or continued as a Eurodollar Borrowing and (ii) unless repaid, each Eurodollar
Borrowing shall be converted to an ABR Borrowing at the end of the Interest
Period applicable thereto.

          (f)  A Borrowing of any Class may not be converted to or continued as
a Eurodollar Borrowing if after giving effect thereto (i) the Interest Period
therefor would commence before and end after a date on which any principal of
the Loans of such Class is scheduled to be repaid and (ii) the sum of the
aggregate principal amount of outstanding Eurodollar Borrowings of such Class
with Interest Periods ending on or prior to such scheduled repayment date plus
the aggregate principal amount of
<PAGE>

                                                                              51

outstanding ABR Borrowings of such Class would be less than the aggregate
principal amount of Loans of such Class required to be repaid on such scheduled
repayment date.

          SECTION 2.06.  Termination and Optional Reduction of Commitments.  (a)
                         --------------------------------------------------
Unless previously terminated, (i) the Tranche A Commitments shall terminate at
5:00 p.m., New York City time, on the last day of the Tranche A Availability
Period, (ii) the Tranche B Commitments shall terminate at 5:00 p.m., New York
City time, on the Effective Date and (iii) the Revolving Commitments and the L/C
Commitments shall terminate on the Revolving Maturity Date.

          (b)  The Borrower may at any time terminate, or from time to time
reduce, the Commitments of any Class; provided that (i) each reduction of the
                                      --------
Commitments of any Class shall be in an amount that is an integral multiple of
$1,000,000 and not less than $2,000,000 (or, if less, the remaining aggregate
principal amount thereof) and (ii) the Borrower shall not terminate or reduce
the Revolving Commitments if, after giving effect to any concurrent prepayment
of the Revolving Loans in accordance with Section 2.09, the sum of the Revolving
Exposures would exceed the total Revolving Commitments.

          (c)  The Borrower shall notify the Administrative Agent of any
election to terminate or reduce the Commitments under paragraph (b) of this
Section at least three Business Days prior to the effective date of such
termination or reduction, specifying such election and the effective date
thereof.  Promptly following receipt of any notice, the Administrative Agent
shall advise the Lenders of the contents thereof.  Each notice delivered by the
Borrower pursuant to this Section shall be irrevocable; provided that a notice
                                                        --------
of termination of the Revolving Commitments delivered by the Borrower may state
that such notice is conditioned upon the effectiveness of other credit
facilities, in which case such notice may be revoked by the Borrower (by notice
to the Administrative Agent on or prior to the specified effective date) if such
condition is not satisfied.  Any termination or reduction of the Commitments of
any Class shall be permanent.  Each reduction of the Commitments of any Class
shall be made ratably among the Lenders in accordance with their respective
Commitments of such Class.
<PAGE>

                                                                              52

          SECTION 2.07.  Repayment of Loans; Evidence of Debt.  (a)  The
                         -------------------------------------
Borrower hereby unconditionally promises to pay (i) to the Administrative Agent
for the account of each Lender the then unpaid principal amount of each
Revolving Loan of such Lender on the Revolving Maturity Date and (ii) to the
Administrative Agent for the account of each Lender the then unpaid principal
amount of each Term Loan of such Lender as provided in Section 2.08.

          (b)  Each Lender shall maintain in accordance with its usual practice
an account or accounts evidencing the indebtedness of the Borrower to such
Lender resulting from each Loan made by such Lender, including the amounts of
principal and interest payable and paid to such Lender from time to time
hereunder.

          (c)  The Administrative Agent shall maintain accounts in which it
shall record (i) the amount of each Loan made hereunder, the Class and Type
thereof and the Interest Period applicable thereto, (ii) the amount of any
principal or interest due and payable or to become due and payable from the
Borrower to each Lender hereunder and (iii) the amount of any sum received by
the Administrative Agent hereunder for the account of the Lenders and each
Lender's share thereof.

          (d)  The entries made in the accounts maintained pursuant to paragraph
(b) or (c) of this Section shall, to the extent permitted by law, be prima facie
                                                                     ----- -----
evidence of the existence and amounts of the obligations recorded therein;
provided that the failure of any Lender or the Administrative Agent to maintain
- --------
such accounts or any error therein shall not in any manner affect the obligation
of the Borrower to repay the Loans in accordance with the terms of this
Agreement.

          (e)  Any Lender may request that Loans of any Class made by it be
evidenced by a promissory note.  In such event, the Borrower shall execute and
deliver to such Lender a promissory note payable to the order of such Lender
(or, if requested by such Lender, to such Lender and its registered assigns) and
in a form approved by the Administrative Agent and the Borrower.  Thereafter,
the Loans evidenced by such promissory note and interest thereon shall at all
times (including after assignment pursuant to Section 9.04) be represented by
one or more promissory notes in such form payable to the order of the payee
named therein
<PAGE>

                                                                              53

(or, if such promissory note is a registered note, to such payee and its
registered assigns).

          SECTION 2.08.  Automatic Revolving Commitment Reductions; Amortization
                         -------------------------------------------------------
of Term Loans.  (a)  The aggregate amount of the Lenders' Revolving Commitments
- --------------
shall automatically and permanently reduce in eight consecutive quarterly
reductions occurring on the date that is six years and nine months after the
Effective Date and on each successive date thereafter which is three months
after the preceding reduction date, in the aggregate amount set forth below for
each reduction:

<TABLE>
<CAPTION>
                         Reduction              Amount
                         ---------              ------
                         <S>                 <C>
                            1-4              $12,500,000
                            5-8              $25,000,000
</TABLE>

          (b)  Subject to adjustment pursuant to paragraph (e) of this Section,
the Borrower shall repay Tranche A Term Loans in 18 consecutive quarterly
installments, payable on the date that is four years and three months after the
Effective Date and on each successive date thereafter which is three months
after the preceding installment date, in the aggregate amount set forth below
for each installment:

<TABLE>
<CAPTION>
               Installment                  Amount
               -----------                  ------
               <S>                          <C>
                     1-6                    $ 3,750,000
                    7-10                    $ 9,375,000
                   11-18                    $11,250,000
</TABLE>

          (c)  Subject to adjustment pursuant to paragraph (e) of this Section,
the Borrower shall repay Tranche B Term Loans in 22 consecutive quarterly
installments, payable on the date that is four years and three months after the
Effective Date and on each successive date thereafter which is three months
after the preceding installment date, in the aggregate amount set forth below
for each installment:

               Installment              Amount
               -----------              ------

                    1-18                $   562,500
                    19-22               $53,718,750
<PAGE>

                                                                              54

          (d)  To the extent not previously paid, (i) all Tranche A Term Loans
shall be due and payable on the Tranche A Maturity Date and (ii) all Tranche B
Term Loans shall be due and payable on the Tranche B Maturity Date.

          (e)  If the initial aggregate amount of the Lenders' Term Commitments
of either Class exceeds the aggregate principal amount of Term Loans of such
Class that are made during the Tranche A Availability Period, in the case of the
Tranche A Term Loans, or on the Effective Date, in the case of the Tranche B
Term Loans, then the scheduled repayments of Term Borrowings of such Class to be
made pursuant to this Section shall be reduced ratably by an aggregate amount
equal to such excess.  Any prepayment of a Term Borrowing of either Class shall
be applied to reduce the subsequent scheduled repayments of the Term Borrowings
of such Class to be made pursuant to this Section ratably.

          (f)  Prior to any repayment of any Term Borrowings of either Class
hereunder, the Borrower shall select the Borrowing or Borrowings of the
applicable Class to be repaid and shall notify the Administrative Agent by
telephone (confirmed by telecopy) of such selection not later than 11:00 a.m.,
New York City time, three Business Days before the scheduled date of such
repayment; provided that each repayment of Term Borrowings of either Class shall
           --------
be applied to repay any outstanding ABR Term Borrowings of such Class before any
other Borrowings of such Class.  Each repayment of a Borrowing shall be applied
ratably to the Loans included in the repaid Borrowing.  Repayments of Term
Borrowings shall be accompanied by accrued interest on the amount repaid.

          SECTION 2.09.  Prepayment of Loans.  (a)  The Borrower shall have the
                         --------------------
right at any time and from time to time to prepay any Borrowing in whole or in
part, subject to the requirements of this Section.

          (b)  In the event and on each occasion that any Net Proceeds are
received by or on behalf of the Borrower or any Subsidiary in respect of any
Prepayment Event, promptly and in any event not later than the Business Day
after such Net Proceeds are received, the Borrower shall prepay Term Borrowings
and the Revolving Commitments and the unused Tranche A Commitments shall be
automatically and permanently reduced in an aggregate amount (to be applied
ratably among the Tranche A Term Loans, the unused Tranche A Commitments,
<PAGE>

                                                                              55

the Tranche B Term Loans and the Revolving Commitments based on their then
respective amounts) equal to (i) in the case of an event described in clause (c)
of the definition of "Prepayment Event", 50% of such Net Proceeds and (ii) in
the case of an event described in any other clause of the definition of
"Prepayment Event", 100% of such Net Proceeds.

          (c)  Following the end of the fiscal year of the Borrower ending
December 31, 2001 and following the end of each subsequent fiscal year, the
Borrower shall prepay Term Borrowings and the Revolving Commitments and the
unused Tranche A Commitments shall be automatically and permanently reduced in
an aggregate amount (to be applied ratably among the Tranche A Term Loans, the
unused Tranche A Commitments, the Tranche B Term Loans and the Revolving
Commitments based on their then respective amounts) equal to 50% of Excess Cash
Flow for such fiscal year.  Each prepayment pursuant to this paragraph shall be
made on or before the third Business Day after the date on which financial
statements are delivered (or, if earlier, required to be delivered) pursuant to
Section 5.01(a) with respect to the fiscal year for which Excess Cash Flow is
being calculated.

          (d)  Prior to any optional or mandatory prepayment of Borrowings
hereunder, the Borrower shall select the Borrowing or Borrowings to be prepaid
and shall specify such selection in the notice of such prepayment pursuant to
paragraph (e) of this Section; provided that (i) all prepayments shall be
                               --------
applied ratably among the Tranche A Term Loans, the unused Tranche A
Commitments, the Tranche B Term Loans and the Revolving Commitments and (ii)
each prepayment of Borrowings of any Class shall be applied to prepay ABR
Borrowings of such Class before any other Borrowings of such Class.  Any amounts
remaining after such application shall, at the option of the Borrower, be
applied to prepay Eurodollar Borrowings immediately and/or shall be deposited in
the Prepayment Account (as defined below).  The Administrative Agent shall apply
any cash deposited in the Prepayment Account to prepay Eurodollar Borrowings on
the last day of their respective Interest Periods (or, at the direction of the
Borrower, on any earlier date) until all outstanding Eurodollar Borrowings have
been prepaid or until all the allocable cash on deposit with respect to such
Loans has been exhausted.  For purposes of this Agreement, the term "Prepayment
Account" shall mean an account established by the Borrower with the
Administrative Agent and over which
<PAGE>

                                                                              56

the Administrative Agent shall have exclusive dominion and control, including
the exclusive right of withdrawal for application in accordance with this
paragraph (d). The Administrative Agent will, at the request of the Borrower,
invest amounts on deposit in the Prepayment Account in Permitted Investments
that mature prior to the last day of the applicable Interest Periods of the
Eurodollar Borrowings to be prepaid; provided, however, that (i) the
                                     --------  -------
Administrative Agent shall not be required to make any investment that, in its
sole judgment, would require or cause the Administrative Agent to be in, or
would result in any, violation of any law, statute, rule or regulation and (ii)
the Administrative Agent shall have no obligation to invest amounts on deposit
in the Prepayment Account if a Default or Event of Default shall have occurred
and be continuing. The Borrower shall indemnify the Administrative Agent for any
losses relating to the investments so that the amount available to prepay
Eurodollar Borrowings on the last day of the applicable Interest Period is not
less than the amount that would have been available had no investments been made
pursuant thereto. Other than any interest earned on such investments, the
Prepayment Account shall not bear interest. Interest or profits, if any, on such
investments shall be deposited in the Prepayment Account and reinvested and
disbursed as specified above. If the maturity of the Loans has been accelerated
pursuant to Article VII, the Administrative Agent may, in its sole discretion,
apply all amounts on deposit in the Prepayment Account to satisfy any of the
Obligations. The Borrower hereby grants to the Administrative Agent, for its
benefit and the benefit of the Issuing Bank and the Lenders, a security interest
in the Prepayment Account to secure the Obligations. In the event of any
optional or mandatory prepayment of Term Borrowings or reduction of Tranche A
Commitments made at a time when Term Borrowings or unused Commitments of both
Classes remain outstanding, the Borrower shall select Term Borrowings to be
prepaid and Tranche A Commitments to be reduced so that the aggregate amount of
such prepayment is allocated between the Tranche A Term Borrowings, the unused
Tranche A Commitments and Tranche B Term Borrowings pro rata based on the
aggregate principal amount of outstanding Borrowings or unused Commitments of
each such Class; provided that any Tranche B Lender may elect, by notice to the
                 --------
Administrative Agent by telephone (confirmed by telecopy) at least one Business
Day prior to the prepayment date, to decline all or any portion of any
prepayment of its Tranche B Term Loans pursuant to this Section (other than an
optional prepayment
<PAGE>

                                                                              57

pursuant to paragraph (a) of this Section, which may not be declined), in which
case the Net Proceeds or Excess Cash Flow that would have been applied to prepay
Tranche B Term Loans but were so declined shall be applied to prepay Tranche A
Term Loans and to reduce the Revolving Commitments and the unused Tranche A
Commitments on a pro rata basis based on their then respective amounts.

          (e)  The amount of any optional or mandatory prepayments allocated to
Tranche A Term Loans or Tranche B Term Loans shall be applied pro rata to reduce
the principal amount of the then remaining amortization installments applicable
to such Loans set forth in Section 2.08.  The amount of any optional or
mandatory commitment reductions allocated to the Revolving Commitments or the
unused Tranche A Commitments shall be applied pro rata to reduce the principal
amount of the then remaining reductions applicable to such Commitments set forth
in Section 2.08.  Any reduction of the Revolving Commitments shall be
accompanied by prepayment of Revolving Loans to the extent the aggregate amount
of such loans outstanding exceeds the total amount of the Revolving Commitments
as so reduced.

          (f)  The Borrower shall notify the Administrative  Agent by telephone
(confirmed by telecopy) of any prepayment hereunder (i) in the case of
prepayment of a Eurodollar Revolving Borrowing, not later than 11:00 a.m., New
York City time, three Business Days before the date of prepayment, (ii) in the
case of prepayment of an ABR Revolving Borrowing, not later than 11:00 a.m., New
York City time, one Business Day before the date of prepayment.  Each such
notice shall be irrevocable and shall specify the prepayment date, the principal
amount of each Borrowing or portion thereof to be prepaid and, in the case of a
mandatory prepayment, a reasonably detailed calculation of the amount of such
prepayment; provided that, if a notice of optional prepayment is given in
            --------
connection with a conditional notice of termination of the Revolving Commitments
as contemplated by Section 2.08, then such notice of prepayment may be revoked
if such notice of termination is revoked in accordance with Section 2.08.
Promptly following receipt of any such notice, the Administrative Agent shall
advise the Lenders of the contents thereof.  Each partial prepayment of any
Borrowing shall be in an amount that would be permitted in the case of an
advance of a Borrowing of the same Type as provided in Section 2.02, except as
necessary to apply fully the
<PAGE>

                                                                              58

required amount of a mandatory prepayment. Each prepayment of a Borrowing shall
be applied ratably to the Loans included in the prepaid Borrowing. Prepayments
shall be accompanied by accrued interest to the extent required by Section 2.13.

          SECTION 2.10.  Fees.  (a)  The Borrower agrees to pay to the
                         -----
Administrative Agent for the account of each Lender a commitment fee, which
shall accrue at the Applicable Rate on the daily unused amount of each
Commitment of such Lender for each day during the period from and including the
date hereof to but excluding the date on which such Commitment terminates.
Accrued commitment fees shall be payable in arrears on the last day of March,
June, September and December of each year and on the date on which any
Commitments of such Lender shall expire or terminate, commencing on the first
such date to occur after the date hereof.  All commitment fees shall be computed
on the basis of a year of 360 days and shall be payable for the actual number of
days elapsed (including the first day but excluding the last day).  For purposes
of computing commitment fees with respect to Revolving Commitments, a Revolving
Commitment of a Lender shall be deemed to be used to the extent of the
outstanding Revolving Exposure of such Lender.

          (b)  The Borrower agrees to pay to the Administrative Agent, for its
own account, fees payable in the amounts and at the times separately agreed upon
between the Borrower and the Administrative Agent.

          (c)  The Borrower agrees to pay (i) to each Revolving Lender, through
the Administrative Agent, on the last Business Day of March, June, September and
December of each year and on the date on which the Revolving Commitment of such
Lender shall be terminated as provided herein, a fee (an "L/C Participation
Fee") calculated on such Lender's Pro Rata Percentage of the actual daily
aggregate L/C Exposure (excluding the portion thereof attributable to
unreimbursed L/C Disbursements) for each day during the preceding quarter (or
shorter period commencing with the date hereof or ending with the Revolving
Maturity Date or the date on which all Letters of Credit have been canceled or
have expired and the Revolving Credit Commitments of all Lenders shall have been
terminated) at a rate per annum equal to the Applicable Margin for Eurodollar
Borrowings and (ii) to the Issuing Bank with respect to each Letter of Credit a
fronting fee of one quarter of one percent per annum along with the standard
<PAGE>

                                                                              59

issuance and drawing fees specified from time to time by such Issuing Bank (the
"Issuing Bank Fees").  All L/C Participation Fees and Issuing Bank Fees shall be
computed on the basis of the actual number of days elapsed in a year of 360
days.

          (d)  All fees payable hereunder shall be paid on the dates due, in
immediately available funds, to the Administrative Agent for distribution, in
the case of commitment fees and participation fees, to the Lenders entitled
thereto, except that the Issuing Bank Fees shall be paid directly to the Issuing
Bank.  Fees paid shall not be refundable under any circumstances.

          SECTION 2.11.  Interest.  (a)  The Loans comprising each ABR Borrowing
                         ---------
shall bear interest at the Alternate Base Rate plus the Applicable Margin.

          (b)  The Loans comprising each Eurodollar Borrowing shall bear
interest at the Adjusted LIBO Rate for the Interest Period in effect for such
Borrowing plus the Applicable Margin.

          (c)  Notwithstanding the foregoing, if any principal of or interest on
any Loan or any fee or other amount payable by the Borrower hereunder is not
paid when due, whether at stated maturity, upon acceleration or otherwise, such
overdue amount shall bear interest, after as well as before judgment, at a rate
per annum equal to (i) in the case of overdue principal of any Loan, 2% plus the
rate otherwise applicable to such Loan as provided in the preceding paragraphs
of this Section or (ii) in the case of any other amount, 2% plus the rate
applicable to ABR Revolving Loans as provided in paragraph (a) of this Section.

          (d)  Accrued interest on each Loan shall be payable in arrears on each
Interest Payment Date for such Loan and, in the case of Revolving Loans, upon
termination of the Revolving Commitments; provided that (i) interest accrued
                                          --------
pursuant to paragraph (c) of this Section shall be payable on demand, (ii) in
the event of any repayment or prepayment of any Loan (other than a prepayment of
an ABR Revolving Loan prior to the end of the Revolving Availability Period),
accrued interest on the principal amount repaid or prepaid shall be payable on
the date of such repayment or prepayment and (iii) in the event of any
<PAGE>

                                                                              60

conversion of any Eurodollar Loan prior to the end of the current Interest
Period therefor, accrued interest on such Loan shall be payable on the effective
date of such conversion.

          (e)  All interest hereunder shall be computed on the basis of a year
of 360 days, except that interest computed by reference to the Alternate Base
Rate at times when the Alternate Base Rate is based on the Prime Rate shall be
computed on the basis of a year of 365 days (or 366 days in a leap year), and in
each case shall be payable for the actual number of days elapsed (including the
first day but excluding the last day).  The applicable Alternate Base Rate or
Adjusted LIBO Rate shall be determined by the Administrative Agent, and such
determination shall be conclusive absent manifest error.

          SECTION 2.12.  Alternate Rate of Interest.  If prior to the
                         ---------------------------
commencement of any Interest Period for a Eurodollar Borrowing:

          (a) the Administrative Agent determines (which determination shall be
     conclusive absent manifest error) that, by reason of circumstances
     affecting the relevant market, adequate and reasonable means do not exist
     for ascertaining the Adjusted LIBO Rate for such Interest Period; or

          (b) the Administrative Agent is advised by the Required Lenders that
     the Adjusted LIBO Rate for such Interest Period will not adequately and
     fairly reflect the cost to such Lenders (or Lender) of making or
     maintaining their Loans (or its Loan) included in such Borrowing for such
     Interest Period;

then the Administrative Agent shall give notice thereof to the Borrower and the
Lenders by telephone or telecopy as promptly as practicable thereafter and,
until the Administrative Agent notifies the Borrower and the Lenders that the
circumstances giving rise to such notice no longer exist (provided that the
Administrative Agent shall use commercially reasonable efforts to determine
whether or not the circumstances which have caused the notice, continue to
exist), (i) any Interest Election Request that requests the conversion of any
Borrowing to, or continuation of any  Borrowing as, a Eurodollar Borrowing shall
be ineffective
<PAGE>

                                                                              61

and (ii) if any Borrowing Request requests a Eurodollar Borrowing, such
Borrowing shall be made as an ABR Borrowing.

          SECTION 2.13.  Increased Costs.  (a)  If any Change in Law shall:
                         ----------------

          (i) impose, modify or deem applicable any reserve, special deposit or
     similar requirement against assets of, deposits with or for the account of,
     or credit extended by, any Lender (except any such reserve requirement
     reflected in the Adjusted LIBO Rate) or the Issuing Bank; or

          (ii) impose on any Lender or the Issuing Bank or the London interbank
     market any other condition (other than a condition relating to a Tax)
     affecting this Agreement or Eurodollar Loans made by such Lender;

and the result of any of the foregoing shall be to increase the cost to such
Lender of making or maintaining any Eurodollar Loan (or of maintaining its
obligation to make any such Loan) or to increase the cost to such Issuing Bank
of issuing or maintaining any Letter of Credit or to reduce the amount of any
sum received or receivable by such Lender or such Issuing Bank hereunder
(whether of principal, interest or otherwise), then the Borrower will pay to
such Lender or such Issuing Bank such additional amount or amounts as will
compensate such Lender or such Issuing Bank for such additional costs incurred
or reduction suffered.

          (b)  If any Lender or Issuing Bank determines that any Change in Law
regarding capital requirements has or would have the effect of reducing the rate
of return on such Lender's or Issuing Bank's capital or on the capital of such
Lender's or Issuing Bank's holding company, if any, as a consequence of this
Agreement or the Loans made by such Lender, the Letters of Credit issued by such
Issuing Bank or the Letters of Credit participated in by such Lender, to a level
below that which such Lender or Issuing Bank or such Lender's or Issuing Bank's
holding company could have achieved but for such Change in Law (taking into
consideration such Lender's or Issuing Bank's policies and the policies of such
Lender's or Issuing Bank's holding company with respect to capital adequacy),
then from time to time the Borrower will pay to such Lender or Issuing Bank, as
the case may be, such additional amount or amounts as will compensate such
Lender or Issuing Bank or such Lender's
<PAGE>

                                                                              62

or Issuing Bank's holding company for any such reduction suffered.

          (c)  A certificate of a Lender or Issuing Bank setting forth the
amount or amounts necessary to compensate such Lender or Issuing Bank or its
holding company, as the case may be, as specified in paragraph (a) or (b) of
this Section shall be delivered to the Borrower and shall be conclusive absent
manifest error.  The Borrower shall pay such Lender or Issuing Bank the amount
shown as due on any such certificate within 10 days after receipt thereof.

          (d)  Failure or delay on the part of any Lender or Issuing Bank to
demand compensation pursuant to this Section shall not constitute a waiver of
such Lender's or Issuing Bank's right to demand such compensation; provided that
                                                                   --------
the Borrower shall not be required to compensate a Lender or Issuing Bank
pursuant to this Section for any increased costs or reductions incurred more
than 270 days prior to the date that such Lender or Issuing Bank, as the case
may be, notifies the Borrower of the Change in Law giving rise to such increased
costs or reductions and of such Lender's or Issuing Bank's intention to claim
compensation therefor; provided further that, if the Change in Law giving rise
                       ----------------
to such increased costs or reductions is retroactive, then the 270-day period
referred to above shall be extended to include the period of retroactive effect
thereof.

          SECTION 2.14.  Break Funding Payments.  In the event of (a) the
                         -----------------------
payment of any principal of any Eurodollar Loan other than on the last day of an
Interest Period applicable thereto (including as a result of an Event of
Default), (b) the conversion of any Eurodollar Loan other than on the last day
of the Interest Period applicable thereto, (c) the failure to borrow, convert,
continue or prepay any Revolving Loan or Term Loan on the date specified in any
notice delivered pursuant hereto (regardless of whether such notice may be
revoked under Section 2.11(g) and is revoked in accordance therewith), or (d)
the assignment of any Eurodollar Loan other than on the last day of the Interest
Period applicable thereto as a result of a request by the Borrower pursuant to
Section 2.17, then, in any such event, the Borrower shall compensate each Lender
for the loss, cost and expense attributable to such event.  In the case of a
Eurodollar Loan, such loss, cost or expense to any Lender shall be deemed to
include an amount determined by such Lender to be the excess, if any, of (i) the
amount of
<PAGE>

                                                                              63

interest which would have accrued on the principal amount of such Loan had such
event not occurred, at the Adjusted LIBO Rate that would have been applicable to
such Loan, for the period from the date of such event to the last day of the
then current Interest Period therefor (or, in the case of a failure to borrow,
convert or continue, for the period that would have been the Interest Period for
such Loan), over (ii) the amount of interest which would accrue on such
principal amount for such period at the interest rate which such Lender would
bid were it to bid, at the commencement of such period, for dollar deposits of a
comparable amount and period from other banks in the eurodollar market. A
certificate of any Lender setting forth any amount or amounts that such Lender
is entitled to receive pursuant to this Section shall be delivered to the
Borrower and shall be conclusive absent manifest error. The Borrower shall pay
such Lender the amount shown as due on any such certificate within 10 days after
receipt thereof.

          SECTION 2.15.  Taxes.  (a)  Any and all payments by or on account of
                         ------
any obligation of the Borrower hereunder or under any other Loan Document shall
be made free and clear of and without deduction for any Indemnified Taxes or
Other Taxes; provided that if the Borrower shall be required to deduct any
             --------
Indemnified Taxes or Other Taxes from such payments, then (i) the sum payable
shall be increased as necessary so that after making all required deductions
(including deductions applicable to additional sums payable under this Section)
the Administrative Agent, Lender or Issuing Bank (as the case may be) receives
an amount equal to the sum it would have received had no such deductions been
made, (ii) the Borrower shall make such deductions and (iii) the Borrower shall
pay the full amount deducted to the relevant Governmental Authority in
accordance with applicable law.

          (b)  In addition, the Borrower shall pay any Other Taxes to the
relevant Governmental Authority in accordance with applicable law, except Taxes
that are being contested in good faith by appropriate proceedings and for which
the Borrower has set aside on its books reserves in accordance with GAAP.

          (c)  The Borrower shall indemnify the Administrative Agent, each
Lender, and the Issuing Bank within 30 days after written demand therefor, for
the full amount of any Indemnified Taxes or Other Taxes paid by the
<PAGE>

                                                                              64

Administrative Agent, such Lender, or the Issuing Bank, on or with respect to
any payment by or on account of any obligation of the Borrower hereunder or
under any other Loan Document (including Indemnified Taxes or Other Taxes
imposed or asserted on or attributable to amounts payable under this Section)
and any penalties, interest and reasonable expenses arising therefrom or with
respect thereto, whether or not such Indemnified Taxes or Other Taxes were
correctly or legally imposed or asserted by the relevant Governmental Authority.
A certificate as to the amount of such payment or liability delivered to the
Borrower by a Lender, the Issuing Bank or by the Administrative Agent on its own
behalf or on behalf of a Lender, or the Issuing Bank, shall be conclusive absent
manifest error.

          (d)  As soon as practicable after any payment of Indemnified Taxes or
Other Taxes by the Borrower to a Governmental Authority, the Borrower shall
deliver to the Administrative Agent the original or a certified copy of a
receipt issued by such Governmental Authority evidencing such payment, a copy of
the return reporting such payment or other evidence of such payment reasonably
satisfactory to the Administrative Agent.

          (e)  Any Foreign Lender that is entitled to an exemption from or
reduction of withholding tax under the law of the jurisdiction in which the
Borrower is located, or any treaty to which such jurisdiction is a party, with
respect to payments under this Agreement shall deliver to the Borrower (with a
copy to the Administrative Agent), at the time or times prescribed by applicable
law, such properly completed and executed documentation prescribed by applicable
law or reasonably requested by the Borrower as will permit such payments to be
made without withholding or at a reduced rate, including, without limitation, if
such Lender is not a "bank" within the meaning of Section 881(c)(3)(A) of the
Code and intends to claim exemption from the U.S. Federal withholding tax under
Section 871(h) or 881(c) of the Code with respect to payments of "portfolio
interest", a Form W-8, or any subsequent versions thereof or successors thereto
(and, if such Foreign Lender delivers a Form W-8, a certificate representing
that such Foreign Lender is not a bank for purposes of Section 881(c) of the
code, is not a 10-percent shareholder (within the meaning of Section
871(h)(3)(B) of the Code of the Borrower and is not a controlled foreign
corporation related to the Borrower (within the meaning of
<PAGE>

                                                                              65

Section 864(d)(4) of the Code)), properly completed and duly executed by such
Foreign Lender claiming complete exemption from, or a reduced rate of, U.S.
Federal withholding tax on payments of interest by the Borrower under this
Agreement and the other Loan Documents.

          (f)  If the Administrative Agent or a Lender receives a refund in
respect of any Indemnified Taxes or Other Taxes as to which it has been
indemnified by the Borrower or with respect to which the Borrower has paid
additional amounts pursuant to this Section 2.15, it shall within 30 days from
the date of such receipt pay over to the Borrower (a) such refund (but only to
the extent of indemnity payments made, or additional amounts paid, by the
Borrower under this Section 2.15 with respect to the Indemnified Taxes or Other
Taxes giving rise to such refund), net of all out-of-pocket expenses of the
Administrative agent or such Lender and (b) interest paid by the relevant
Governmental Authority with respect to such refund); provided, however, that the
                                                     --------  -------
Borrower, upon the request of the Administrative Agent or such Lender shall
repay the amount paid over to the Borrower (plus penalties, interest or other
charges) to the Administrative Agent or such Lender in the event the
Administrative Agent or such Lender is required to repay such refund to such
Governmental Authority.

          SECTION 2.16.  Payments Generally; Pro Rata Treatment; Sharing of
                         --------------------------------------------------
Setoffs.  (a)  The Borrower shall make each payment required to be made by it
- --------
hereunder or under any other Loan Document (whether of principal, interest,
fees, or of amounts payable under Section 2.13, 2.14 or 2.15, or otherwise)
prior to 12:00 noon, New York City time, on the date when due, in immediately
available funds, without setoff or counterclaim.  Any amounts received after
such time on any date may, in the discretion of the Administrative Agent, be
deemed to have been received on the next succeeding Business Day for purposes of
calculating interest thereon.  All such payments shall be made to the
Administrative Agent at its offices at 270 Park Avenue, New York, New York,
except that payments pursuant to Sections 2.13, 2.14, 2.15 and 9.03 shall be
made directly to the Persons entitled thereto, payments of Issuing Bank Fees
shall be made directly to the Issuing Bank and payments pursuant to other Loan
Documents shall be made to the Persons specified therein.  The Administrative
Agent shall distribute any such payments received by it for the account of any
other Person
<PAGE>

                                                                              66

to the appropriate recipient promptly following receipt thereof. If any payment
under any Loan Document shall be due on a day that is not a Business Day, the
date for payment shall be extended to the next succeeding Business Day, and, in
the case of any payment accruing interest, interest thereon shall be payable for
the period of such extension. All payments under each Loan Document shall be
made in dollars.

          (b)  If at any time insufficient funds are received by and available
to the Administrative Agent to pay fully all amounts of principal, interest and
fees then due hereunder, such funds shall be applied (i) first, towards payment
of interest and fees then due hereunder, ratably among the parties entitled
thereto in accordance with the amounts of interest and fees then due to such
parties, and (ii) second, towards payment of principal then due hereunder,
ratably among the parties entitled thereto in accordance with the amounts of
principal then due to such parties.

          (c)  If any Lender shall, by exercising any right of set off or
counterclaim or otherwise, obtain payment in respect of any Loan or Loans or L/C
Disbursement as a result of which the unpaid principal portion of its Tranche A
Term Loans, Tranche B Term Loans or Revolving Loans or participations in L/C
Disbursements shall be proportionately less than the unpaid principal portion of
the Tranche A Term Loans, Tranche B Term Loans or Revolving Loans and
participations in L/C Disbursements of any other Lender, it shall be deemed
simultaneously to have purchased from such other Lender at face value, and shall
promptly pay to such other Lender the purchase price for, a participation in the
Tranche A Term Loans, Tranche B Term Loans or Revolving Loans or L/C Exposure,
as the case may be, of such other Lender, so that the aggregate unpaid principal
amount of the Tranche A Term Loans, Tranche B Term Loans and Revolving Loans and
participations in Tranche A Term Loans, Tranche B Term Loans and Revolving Loans
and L/C Exposure held by each Lender shall be in the same proportion to the
aggregate unpaid principal amount of all Tranche A Term Loans, Tranche B Term
Loans and Revolving Loans and L/C Exposure then outstanding as the principal
amount of its Tranche A Term Loans, Tranche B Term Loans and Revolving Loans
prior to such exercise of any right of setoff or counterclaim or other event was
to the principal amount of all Tranche A Term Loans, Tranche B Term Loans and
Revolving Loans and L/C
<PAGE>

                                                                              67

Exposure outstanding prior to such exercise of any right of setoff or
counterclaim or other event; provided that (i) if any such participations are
                             --------
purchased and all or any portion of the payment giving rise thereto is
recovered, such participations shall be rescinded and the purchase price
restored to the extent of such recovery, without interest, and (ii) the
provisions of this paragraph shall not be construed to apply to any payment made
by the Borrower pursuant to and in accordance with the express terms of this
Agreement or any payment obtained by a Lender as consideration for the
assignment of or sale of a participation in any of its Loans to any assignee or
participant, other than to the Borrower or any Subsidiary or Affiliate thereof
(as to which the provisions of this paragraph shall apply). The Borrower
consents to the foregoing and agrees, to the extent it may effectively do so
under applicable law, that any Lender acquiring a participation pursuant to the
foregoing arrangements may exercise against the Borrower rights of setoff and
counterclaim with respect to such participation as fully as if such Lender were
a direct creditor of the Borrower in the amount of such participation.

          (d)  Unless the Administrative Agent shall have received notice from
the Borrower prior to the date on which any payment is due to the Administrative
Agent for the account of the Lenders hereunder that the Borrower will not make
such payment, the Administrative Agent may assume that the Borrower has made
such payment on such date in accordance herewith and may, in reliance upon such
assumption, distribute to the Lenders, the amount due.  In such event, if the
Borrower has not in fact made such payment, then each of the Lenders severally
agrees to repay to the Administrative Agent forthwith on demand the amount so
distributed to such Lender with interest thereon, for each day from and
including the date such amount is distributed to it to but excluding the date of
payment to the Administrative Agent, at the greater of the Federal Funds
Effective Rate and a rate determined by the Administrative Agent in accordance
with banking industry rules on interbank compensation.

          (e)  If any Lender shall fail to make any payment required to be made
by it pursuant to Section 2.04(b), 2.04(c), 2.06(d) or 9.03(c), then the
Administrative Agent may, in its discretion (notwithstanding any contrary
provision hereof), apply any amounts thereafter received by the Administrative
Agent for the account of such Lender to
<PAGE>

                                                                              68

satisfy such Lender's obligations under such Sections until all such unsatisfied
obligations are fully paid.

          SECTION 2.17.  Mitigation Obligations; Replacement of Lenders.  (a)
                         -----------------------------------------------
If any Lender or Issuing Bank requests compensation under Section 2.13, or if
the Borrower is required to pay any additional amount to any Lender or Issuing
Bank or any Governmental Authority for the account of any Lender or Issuing Bank
pursuant to Section 2.15, then such Lender or Issuing Bank shall use reasonable
efforts to designate a different lending office for funding or booking its Loans
hereunder or to assign its rights and obligations hereunder to another of its
offices, branches or affiliates, if, in the judgment of such Lender or Issuing
Bank, such designation or assignment (i) would eliminate or reduce amounts
payable pursuant to Section 2.13 or 2.15, as the case may be, in the future and
(ii) would not subject such Lender or Issuing Bank to any unreimbursed cost or
expense and would not otherwise be disadvantageous in any material respect to
such Lender or Issuing Bank.  The Borrower hereby agrees to pay all reasonable
costs and expenses incurred by any Lender in connection with any such
designation or assignment.

          (b)  If any Lender or Issuing Bank requests compensation under Section
2.13, or if the Borrower is required to pay any additional amount to any Lender
or Issuing Bank or any Governmental Authority for the account of any Lender or
Issuing Bank pursuant to Section 2.15, or if any Lender defaults in its
obligation to fund Loans hereunder, then the Borrower may, at its sole expense
and effort, upon notice to such Lender or Issuing Bank and the Administrative
Agent, require such Lender or Issuing Bank to assign and delegate, without
recourse (in accordance with and subject to the restrictions contained in
Section 9.04 and, in the case of an Issuing Bank, subject to Section 2.19(i)
hereof), all its interests, rights and obligations under this Agreement to an
assignee that shall assume such obligations (which assignee may be another
Lender, if a Lender accepts such assignment); provided that (i) the Borrower
                                              --------
shall have received the prior written consent of the Administrative Agent (and,
if a Revolving Commitment is being assigned, the Issuing Bank), which consent
shall not unreasonably be withheld, (ii) such Lender or Issuing Bank shall have
received payment of an amount equal to the outstanding principal of its Loans
and L/C Disbursements, accrued interest thereon, accrued fees and all other
amounts
<PAGE>

                                                                              69

payable to it hereunder, from the assignee (to the extent of such outstanding
principal and accrued interest and fees) or the Borrower (in the case of all
other amounts) and (iii) in the case of any such assignment resulting from a
claim for compensation under Section 2.13 or payments required to be made
pursuant to Section 2.15, such assignment will result in a reduction in such
compensation or payments. A Lender or Issuing Bank shall not be required to make
any such assignment and delegation if, prior thereto, as a result of a waiver by
such Lender or Issuing Bank or otherwise, the circumstances entitling the
Borrower to require such assignment and delegation cease to apply.

          SECTION 2.18.  Expansion Facility.  On two occasions prior to the
                         -------------------
Tranche B Maturity Date, the Borrower may, by notice to the Administrative Agent
(which shall promptly deliver a copy to each of the Lenders), request the
addition of a new tranche of Term Loans (all such Term Loans, collectively, the
"Expansion Term Loans") provided, however, that both at the time of any such
 --------------------   --------  -------
request and after giving effect to any such Expansion Term Loans (x) no Default
shall exist and the Borrower shall be in pro forma compliance with each
financial covenant.  The Expansion Term Loans (i) shall be in an aggregate
principal amount not in excess of $75,000,000, (ii) shall rank pari passu in
                                                               ---- -----
right of payment and of security with the Loans, (iii) shall mature no sooner
than, and have a longer average weighted life than, the Tranche B Term Loans,
(iv) shall have such pricing as may be agreed by the Borrower and the persons
providing such Expansion Term Loans and shall otherwise be treated hereunder no
more favorably than the Tranche B Term Loans.  Such notice shall set forth the
requested amount of Expansion Term Loans (which amount, together with the amount
of all previous Expansion Term Loans, shall not exceed $75,000,000), and shall
offer each Lender the opportunity to offer a commitment to provide Expansion
Term Loans by giving written notice of such offered commitment to the
Administrative Agent and the Borrower within 10 Business Days after the date of
the Borrower's notice; provided, however, that no existing Lender will be
                       --------  -------
obligated to subscribe for any portion of such commitments.  In the event that,
on the tenth Business Day after the Borrower shall have delivered a notice
pursuant to the first sentence of this paragraph, Lenders shall have provided
commitments in an aggregate amount less than the total amount of the Expansion
Term Loans requested by the Borrower, the Borrower shall have the right to
arrange for one or more banks or
<PAGE>

                                                                              70

other financial institutions (any such bank or other financial institution being
called an "Additional Lender") to extend commitments to provide Expansion Term
           -----------------
Loans in an aggregate amount equal to the unsubscribed amount, provided that
                                                               --------
each Additional Lender shall be subject to the approval of the Administrative
Agent (which approval shall not be unreasonably withheld) and provided further
                                                              -------- -------
that the Additional Lenders shall be offered the opportunity to provide the
Expansion Term Loans only on terms previously offered to the existing lenders
pursuant to the immediately preceding sentence. Commitments in respect of
Expansion Term Loans shall become Commitments under this Agreement pursuant to
an Expansion Facility Amendment executed by each of the Borrower, each Lender
agreeing to provide such Commitment, if any, each Additional Lender, if any, and
the Administrative Agent. The effectiveness of any Expansion Facility Amendment
shall be subject to the satisfaction on the date thereof and, if different, on
the date on which the Expansion Term Loans are made, of each of the conditions
set forth in Section 4.02.

          SECTION 2.19.  Letters of Credit.  (a) General.  The Borrower may
                         ------------------
request the issuance of Letters of Credit denominated in dollars, for its own
account, in a form reasonably acceptable to the Administrative Agent and the
Issuing Bank, at any time and from time to time while the Revolving Commitments
remain in effect.  This Section shall not be construed to impose an obligation
upon the Issuing Bank to issue any Letter of Credit that is inconsistent with
the terms and conditions of this Agreement.

     (b)  Notice of Issuance, Amendment, Renewal, Extension; Certain Conditions.
In order to request the issuance of a Letter of Credit (or to amend, renew or
extend an existing Letter of Credit), the Borrower shall hand deliver or
telecopy to the Issuing Bank and the Administrative Agent (at least three days
in advance of the requested date of issuance, amendment, renewal or extension or
such shorter time period agreed upon by the Issuing Bank and the Borrower) a
notice requesting the issuance of a Letter of Credit, or identifying the Letter
of Credit to be amended, renewed or extended, the date of issuance, amendment,
renewal or extension, the date on which such Letter of Credit is to expire
(which shall comply with paragraph (c) below), the amount of such Letter of
Credit, the name and address of the beneficiary thereof and such other
information as shall be necessary to prepare such Letter of
<PAGE>

                                                                              71

Credit. Following receipt of such notice and prior to the issuance of the
requested Letter of Credit or the applicable amendment, renewal or extension,
the Administrative Agent shall notify the Borrower, the Issuing Bank and the
Lenders of the amount of the Aggregate Revolving Exposure after giving effect to
(i) the issuance, amendment, renewal or extension of such Letter of Credit, (ii)
the issuance or expiration of any other Letter of Credit that is to be issued or
will expire prior to the requested date of issuance of such Letter of Credit and
(iii) the borrowing or repayment of any Revolving Loans that (based upon notices
delivered to the Administrative Agent by the Borrower) are to be borrowed or
repaid prior to the requested date of issuance of such Letter of Credit. A
Letter of Credit shall be issued, amended, renewed or extended only if, and upon
issuance, amendment, renewal or extension of each Letter of Credit the Borrower
shall be deemed to represent and warrant that, after giving effect to such
issuance, amendment, renewal or extension (A) the L/C Exposure shall not exceed
$10,000,000 and (B) the Aggregate Revolving Exposure shall not exceed the Total
Revolving Commitment.

     (c)  Expiration Date.  Each Letter of Credit shall expire at or prior to
the close of business on the earlier of the date one year after the date of the
issuance of such Letter of Credit and the date that is five Business Days prior
to the Revolving Maturity Date.

     (d)  Participations.  By the issuance of a Letter of Credit and without any
further action on the part of the Issuing Bank or the Lenders, the Issuing Bank
hereby grants to each Revolving Lender, and each such Lender hereby acquires
from the Issuing Bank, a participation in such Letter of Credit equal to such
Lender's Pro Rata Percentage of the aggregate amount available to be drawn under
such Letter of Credit, effective upon the issuance of such Letter of Credit.  In
consideration and in furtherance of the foregoing, each Revolving Lender hereby
absolutely and unconditionally agrees to pay to the Administrative Agent, for
the account of the Issuing Bank, such Lender's Pro Rata Percentage of each L/C
Disbursement made by such Issuing Bank and not reimbursed by the Borrower (or,
if applicable, another party pursuant to its obligations under any other Loan
Document) forthwith on the date due as provided in Section 2.02(e).  Each
Revolving Lender acknowledges and agrees that its obligation to acquire
participations pursuant to this paragraph in respect of Letters of Credit
<PAGE>

                                                                              72

is absolute and unconditional and shall not be affected by any circumstance
whatsoever, including the occurrence and continuance of a Default or an Event of
Default, and that each such payment shall be made without any offset, abatement,
withholding or reduction whatsoever.

     (e)  Reimbursement.  If the Issuing Bank shall make any L/C Disbursement in
respect of a Letter of Credit, the Borrower shall pay to the Administrative
Agent an amount equal to such L/C Disbursement not later than two hours after
the Borrower shall have received notice from such Issuing Bank that payment of
such draft will be made, or, if the Borrower shall have received such notice
later than 3:00 p.m., New York City time, on any Business Day, not later than
10:00 a.m., New York City time, on the immediately following Business Day.

     (f)  Obligations Absolute.  The Borrower's obligations to reimburse L/C
Disbursements as provided in paragraph (e) above shall be absolute,
unconditional and irrevocable, and shall be performed strictly in accordance
with the terms of this Agreement, under any and all circumstances whatsoever,
and irrespective of:

          (i)   any lack of validity or enforceability of any Letter of Credit
     or any Loan Document, or any term or provision therein;

          (ii)  any amendment or waiver of or any consent to departure from all
     or any of the provisions of any Letter of Credit or any Loan Document;

          (iii) the existence of any claim, setoff, defense or other right that
     the Borrower, any other party guaranteeing, or otherwise obligated with,
     the Borrower, any Subsidiary or other Affiliate thereof or any other Person
     may at any time have against the beneficiary under any Letter of Credit,
     the Issuing Bank, the Administrative Agent or any Lender or any other
     Person, whether in connection with this Agreement, any other Loan Document
     or any other related or unrelated agreement or transaction;

          (iv)  any draft or other document presented under a Letter of Credit
     proving to be forged, fraudulent, invalid or insufficient in any respect or
     any statement therein being untrue or inaccurate in any respect;
<PAGE>

                                                                              73

          (v) payment by the Issuing Bank under a Letter of Credit against
     presentation of a draft or other document that does not comply with the
     terms of such Letter of Credit; and

          (vi) any other act or omission to act or delay of any kind of the
     Issuing Bank, the Lenders, the Administrative Agent or any other Person or
     any other event or circumstance whatsoever, whether or not similar to any
     of the foregoing, that might, but for the provisions of this Section,
     constitute a legal or equitable discharge of the Borrower's obligations
     hereunder.

     Without limiting the generality of the foregoing, it is expressly
understood and agreed that the absolute and unconditional obligation of the
Borrower hereunder to reimburse L/C Disbursements will not be excused by the
gross negligence or wilful misconduct of the Issuing Bank.  However, the
foregoing shall not be construed to excuse the Issuing Bank from liability to
the Borrower to the extent of any direct damages (as opposed to consequential
damages, claims in respect of which are hereby waived by the Borrower to the
extent permitted by applicable law) suffered by the Borrower that are caused by
such Issuing Bank's gross negligence or wilful misconduct in determining whether
drafts and other documents presented under a Letter of Credit comply with the
terms thereof; it is understood that the Issuing Bank may accept documents that
appear on their face to be in order, without responsibility for further
investigation, regardless of any notice or information to the contrary and, in
making any payment under any Letter of Credit (i) the Issuing Bank's exclusive
reliance on the documents presented to it under such Letter of Credit as to any
and all matters set forth therein, including reliance on the amount of any draft
presented under such Letter of Credit, whether or not the amount due to the
beneficiary thereunder equals the amount of such draft and whether or not any
document presented pursuant to such Letter of Credit proves to be insufficient
in any respect, if such document on its face appears to be in order, and whether
or not any other statement or any other document presented pursuant to such
Letter of Credit proves to be forged or invalid or any statement therein proves
to be inaccurate or untrue in any respect whatsoever and (ii) any noncompliance
in any immaterial respect of the documents presented under such Letter of Credit
with the terms thereof shall, in each case,
<PAGE>

                                                                              74

be deemed not to constitute wilful misconduct or gross negligence of the Issuing
Bank.

     (g)  Disbursement Procedures.  The Issuing Bank shall, promptly following
its receipt thereof, examine all documents purporting to represent a demand for
payment under a Letter of Credit.  The Issuing Bank shall as promptly as
possible give telephonic notification, confirmed by telecopy, to the
Administrative Agent and the Borrower of such demand for payment and whether
such Issuing Bank has made or will make an L/C Disbursement thereunder; provided
that any failure to give or delay in giving such notice shall not relieve the
Borrower of its obligation to reimburse the Issuing Bank and the Revolving
Lenders with respect to any such L/C Disbursement.  The Administrative Agent
shall promptly give each Revolving Lender notice thereof.

     (h)  Interim Interest.  If the Issuing Bank shall make any L/C Disbursement
in respect of a Letter of Credit, then, unless the Borrower shall reimburse such
L/C Disbursement in full on such date, the unpaid amount thereof shall bear
interest for the account of such Issuing Bank, for each day from and including
the date of such L/C Disbursement, to but excluding the earlier of the date of
payment by the Borrower or the date on which interest shall commence to accrue
thereon as provided in Section 2.02(e), at the rate per annum that would apply
to such amount if such amount were an ABR Loan.

     (i)  Resignation or Removal of the Issuing Bank.  The Issuing Bank may
resign at any time by giving 180 days' prior written notice to the
Administrative Agent, the Lenders and the Borrower, and may be removed at any
time by the Borrower by notice to the Issuing Bank, the Administrative Agent and
the Lenders.  Subject to the next succeeding paragraph, upon the acceptance of
any appointment as the Issuing Bank hereunder by a Lender that shall agree to
serve as successor Issuing Bank, such successor shall succeed to and become
vested with all the interests, rights and obligations of the retiring Issuing
Bank and the retiring Issuing Bank shall be discharged from its obligations to
issue additional Letters of Credit hereunder.  At the time such removal or
resignation shall become effective, the Borrower shall pay all accrued and
unpaid fees pursuant to Section 2.05(d).  The acceptance of any appointment as
the Issuing Bank hereunder by a successor
<PAGE>

                                                                              75

Lender shall be evidenced by an agreement entered into by such successor, in a
form satisfactory to the Borrower and the Administrative Agent, and, from and
after the effective date of such agreement, (i) such successor Lender shall have
all the rights and obligations of the previous Issuing Bank under this Agreement
and the other Loan Documents and (ii) references herein and in the other Loan
Documents to the term "Issuing Bank" shall be deemed to refer to such successor
or to any previous Issuing Bank, or to such successor and all previous Issuing
Banks, as the context shall require. After the resignation or removal of an
Issuing Bank hereunder, the retiring Issuing Bank shall remain a party hereto
and shall continue to have all the rights and obligations of an Issuing Bank
under this Agreement and the other Loan Documents with respect to Letters of
Credit issued by it prior to such resignation or removal, but shall not be
required to issue additional Letters of Credit.

     (j)  Cash Collateralization.  If any Event of Default shall occur and be
continuing, the Borrower shall, on the Business Day it receives notice from the
Administrative Agent or the Required Lenders (or, if the maturity of the Loans
has been accelerated, Revolving Lenders holding participations in outstanding
Letters of Credit representing greater than 50% of the aggregate undrawn amount
of all outstanding Letters of Credit) thereof and of the amount to be deposited,
deposit in an account with the Collateral Agent, for the benefit of the
Revolving Lenders, an amount in cash equal to the L/C Exposure as of such date.
Such deposit shall be held by the Collateral Agent as collateral for the payment
and performance of the Obligations.  The Collateral Agent shall have exclusive
dominion and control, including the exclusive right of withdrawal, over such
account.  Other than any interest earned on the investment of such deposits in
Permitted Investments, which investments shall be made at the option and sole
discretion of the Collateral Agent, such deposits shall not bear interest.
Interest or profits, if any, on such investments shall accumulate in such
account.  Moneys in such account shall (i) automatically be applied by the
Administrative Agent to reimburse the Issuing Bank for L/C Disbursements for
which they have not been reimbursed, (ii) be held for the satisfaction of the
reimbursement obligations of the Borrower for the L/C Exposure at such time and
(iii) if the maturity of the Loans has been accelerated (but subject to the
consent of Revolving Lenders holding participations in
<PAGE>

                                                                              76

outstanding Letters of Credit representing greater than 50% of the aggregate
undrawn amount of all outstanding Letters of Credit), be applied to satisfy the
Obligations. If the Borrower is required to provide an amount of cash collateral
hereunder as a result of the occurrence of an Event of Default, such amount (to
the extent not applied as aforesaid) shall be returned to the Borrower within
three Business Days after all Events of Default have been cured or waived.


                                  ARTICLE III

                        Representations and Warranties
                        ------------------------------

          The Borrower represents and warrants to the Lenders that:

          SECTION 3.01.  Organization; Powers.  Each of the Borrower and its
                         ---------------------
Subsidiaries is duly organized, validly existing and in good standing under the
laws of the jurisdiction of its organization, has all requisite power and
authority to carry on its business as now conducted and to own and operate
Systems in the areas set forth on Schedule 3.14 and, except where the failure to
do so, individually or in the aggregate, could not reasonably be expected to
result in a Material Adverse Effect, is qualified to do business in, and is in
good standing in, every jurisdiction where such qualification is required.

          SECTION 3.02.  Authorization; Enforceability.  The Transactions to be
                         ------------------------------
entered into by each Loan Party are within such Loan Party's corporate or other
organizational powers and have been duly authorized by all necessary action.
This Agreement has been duly executed and delivered by the Borrower and
constitutes, and each other Loan Document to which any Loan Party is to be a
party, when executed and delivered by such Loan Party, will constitute, a legal,
valid and binding obligation of the Borrower or such Loan Party (as the case may
be), enforceable in accordance with its terms, subject to applicable bankruptcy,
insolvency, reorganization, moratorium or other laws affecting creditors' rights
generally and subject to general principles of equity, regardless of whether
considered in a proceeding in equity or at law.
<PAGE>

                                                                              77

          SECTION 3.03.  Governmental Approvals; No Conflicts.  The Transactions
                         -------------------------------------
(a) do not require any consent or approval of, registration or filing with, or
any other action by, any Governmental Authority, except (i) such as have been
obtained or made and are in full force and effect, (ii) with respect to the
Subordinated Debt, such as will be obtained or made or be in full force and
effect prior to the issuance thereof and (iii) filings necessary to perfect
Liens created under the Loan Documents, (b) will not violate any applicable law
or regulation or the charter, by-laws or other organizational documents of any
Loan Party or any order of any Governmental Authority, (c) will not violate or
result in a default under any indenture, agreement or other instrument binding
upon any Loan Party or any of their assets, or give rise to a right thereunder
to require any payment to be made by any Loan Party and (d) will not result in
the creation or imposition of any Lien on any asset of any Loan Party, except
Liens created under the Loan Documents.

          SECTION 3.04.  Financial Condition; No Material Adverse Change.  (a)
                         ------------------------------------------------
The Borrower has heretofore furnished to the Lenders a pro forma consolidated
balance sheet as of the Closing Date, prepared giving effect to the Transactions
as if the Transactions had occurred on such date.  Such pro forma consolidated
balance sheet (i) has been prepared in good faith based on the same assumptions
used to prepare the pro forma financial statements included in the Information
Memorandum (which assumptions are believed by the Borrower to be reasonable),
(ii) is based on the best information available to the Borrower after due
inquiry, (iii) accurately reflects all adjustments necessary to give effect to
the Transactions and (iv) presents fairly, in all material respects, the pro
forma financial position of the Borrower and its consolidated Subsidiaries as of
such date as if the Transactions had occurred on such date.

          (b)  Except as disclosed in the financial statements referred to above
or the notes thereto or in the Information Memorandum and except for the
Disclosed Matters, after giving effect to the Transactions, none of the Borrower
or its Subsidiaries has, as of the Effective Date, any material contingent
liabilities, unusual long-term commitments or unrealized losses.

          (c)  Since December 31, 1997, there has been no material adverse
change in the business, assets, operations,
<PAGE>

                                                                              78

prospects or condition, financial or otherwise, of THC, the Borrower and its
Restricted Subsidiaries, taken as a whole.

          SECTION 3.05.  Properties.  (a)  Each of the Borrower and its
                         -----------
Subsidiaries has good title to, or valid leasehold interests in all real and
personal property material to its business (including its Mortgaged Properties),
except for minor defects in title that do not materially interfere with its
ability to conduct its business as currently conducted or to utilize such
properties for their intended purposes.

          (b)  Each of the Borrower and its Subsidiaries owns, or is licensed to
use, all trademarks, tradenames, copyrights, patents and other intellectual
property material to its business, and the use thereof by the Borrower and its
Subsidiaries does not infringe upon the rights of any other Person, except for
any such infringements that, individually or in the aggregate, could not
reasonably be expected to result in a Material Adverse Effect.

          (c)  Schedule 3.05 sets forth the address of each real property that
is owned or leased by the Borrower or any of its Subsidiaries as of the
Effective Date after giving effect to the Transactions.

          (d)  As of the Effective Date, neither the Borrower nor any of its
Subsidiaries has received notice of, or has knowledge of, any pending or
contemplated condemnation proceeding affecting any Mortgaged Property or any
sale or disposition thereof in lieu of condemnation.  Neither any Mortgaged
Property nor any interest therein is subject to any right of first refusal,
option or other contractual right to purchase such Mortgaged Property or
interest therein.

          SECTION 3.06.  Litigation and Environmental Matters.  (a)  There are
                         -------------------------------------
no actions, suits or proceedings by or before any arbitrator or Governmental
Authority pending against or, to the knowledge of the Borrower, threatened
against or affecting the Borrower or any of its Subsidiaries (i) as to which
there is a reasonable possibility of an adverse determination and that, if
adversely determined, could reasonably be expected, individually or in the
aggregate, to result in a Material Adverse Effect (other than the Disclosed
Matters) or (ii) that involve any of the Loan Documents or the Transactions.
<PAGE>

                                                                              79

          (b)  Except for the Disclosed Matters and except with respect to any
other matters that, individually or in the aggregate, could not reasonably be
expected to result in a Material Adverse Effect, none of the Borrower or any
Subsidiary (i) has failed to comply with any Environmental Law or to obtain,
maintain or comply with any permit, license or other approval required under any
Environmental Law, (ii) has become subject to any Environmental Liability, (iii)
has received notice of any claim with respect to any Environmental Liability or
(iv) knows of any basis for any Environmental Liability.

          (c)  Since the date of this Agreement, there has been no change in the
status of the Disclosed Matters that, individually or in the aggregate, has
resulted in, or materially increased the likelihood of, a Material Adverse
Effect.

          SECTION 3.07.  Compliance with Laws and Agreements.  Each Loan Party
                         ------------------------------------
is in compliance with (a) all laws, regulations and orders of any Governmental
Authority applicable to it or its property and (b) the terms of the PCS
Documents and all other indentures, agreements and  instruments binding upon it
or its property, except, in the case of laws, regulations, orders, agreements,
indentures and instruments other than the PCS Documents, where the failure to do
so, individually or in the aggregate, could not reasonably be expected to result
in a Material Adverse Effect.  No Default has occurred and is continuing.

          SECTION 3.08.  Investment and Holding Company Status.  No Loan Party
                         --------------------------------------
is (a) an "investment company" as defined in, or subject to regulation under,
the Investment Company Act of 1940 or (b) a "holding company" as defined in, or
subject to regulation under, the Public Utility Holding Company Act of 1935.

          SECTION 3.09.  Taxes.  Each Loan Party has filed or caused to be filed
                         ------
all Tax returns which, to the knowledge of the Borrower are required to have
been filed and has paid or caused to be paid all Taxes required to have been
paid by it, except Taxes that are being contested in good faith by appropriate
proceedings and for which the Borrower or such Subsidiary, as applicable, has
set aside on its books reserves in accordance with GAAP.
<PAGE>

                                                                              80

          SECTION 3.10.  ERISA.  No ERISA Event has occurred or is reasonably
                         ------
expected to occur that, when taken together with all other such ERISA Events for
which liability is reasonably expected to occur, could reasonably be expected to
result in a Material Adverse Effect.  The present value of all accumulated
benefit obligations under each Plan (based on the assumptions used for purposes
of Statement of Financial Accounting Standards No. 87) did not, as of the date
of the most recent financial statements reflecting such amounts, exceed by more
than $1,000,000 the fair market value of the assets of such Plan, and the
present value of all accumulated benefit obligations of all underfunded Plans
(based on the assumptions used for purposes of Statement of Financial Accounting
Standards No. 87) did not, as of the date of the most recent financial
statements reflecting such amounts, exceed by more than $1,000,000 the fair
market value of the assets of all such underfunded Plans.

          SECTION 3.11.  Disclosure.  The Borrower has disclosed to the Lenders
                         -----------
all agreements, instruments and corporate or other restrictions to which any
Loan Party is subject, and all other matters known to any of them, that,
individually or in the aggregate, could reasonably be expected to result in a
Material Adverse Effect.  Neither the Information Memorandum nor any of the
other reports, financial statements, certificates or other information furnished
by or on behalf of any Loan Party to the Administrative Agent or any Lender in
connection with the negotiation of this Agreement or any other Loan Document or
delivered hereunder or thereunder (as modified or supplemented by other
information so furnished), as of the date thereof, contained any material
misstatement of fact or omitted to state any material fact necessary to make the
statements therein, in the light of the circumstances under which they were
made, not misleading; provided that, with respect to projected financial
                      --------
information, the Borrower represents only that such information was prepared in
good faith based upon assumptions believed to be reasonable at the time.  All
information furnished by or on behalf of any Loan Party to the Administrative
Agent or any Lender in connection with the negotiation of this Agreement or any
other Loan Document or delivered hereunder or thereunder (as modified or
supplemented by other information so furnished), taken as a whole, does not
contain any material misstatement of fact and does not omit to state any
material fact necessary to make the statements therein, in the light of the
circumstances under which they were made, not
<PAGE>

                                                                              81

misleading; provided that, with respect to projected financial information, the
            --------
Borrower represents only that such information was prepared in good faith based
upon assumptions believed to be reasonable at the time.

          SECTION 3.12.  Subsidiaries; Parents.   (a)  Schedule 3.12 sets forth
                         ----------------------
the name of, and the ownership interest of the Borrower in, each Subsidiary of
the Borrower and identifies each Subsidiary that is a Subsidiary Loan Party, in
each case as of the Effective Date.  Each License Subsidiary, the Equipment
Subsidiary and the Real Property Subsidiary is a Wholly Owned Subsidiary, and
all the Capital Stock of each such Person is directly owned by the Borrower free
and clear of any Lien (other than Liens created by the Security Documents).

          (b)  As of the Effective Date, the Capital Stock of the Borrower will
be owned as set forth on Schedule 3.12.  As of the date hereof, to the best of
the Borrower's knowledge, AW is a Wholly Owned Subsidiary of AT&T Corp.

          (c)  As of the date hereof, there is not, and as of the Effective
Date, there will not be, any issued or outstanding Capital Stock or other
interest of or in the Borrower or any of its Subsidiaries other than as
described in subsections 3.12(a) and (b).  All outstanding Capital Stock of each
Restricted Subsidiary of the Borrower is owned, directly or indirectly, by the
Borrower or another Restricted Subsidiary free and clear of all Liens whatsoever
(other than Liens created by the Security Documents).

          (d)  All Licenses which are directly or indirectly held by the
Borrower or any of its Restricted Subsidiaries are owned, beneficially and of
record by a License Subsidiary, free and clear of all Liens (other than Liens
under the Security Documents or imposed by the Communications Act).

          (e)  All Real Property Assets and Real Property-Related Equipment
(other than Excluded Real Property Assets, Excluded Real Property-Related
Equipment, Secured Real Property Assets and Secured Real Property-Related
Equipment) which are directly or indirectly owned by the Borrower or any other
Loan Party are owned, beneficially and of record by the Real Property
Subsidiary, free and clear of all Liens (other than Liens under the Security
Documents or Permitted Encumbrances).  At least 90% of the value of (A) the Real
<PAGE>

                                                                              82

Property Assets and (B) the Real Property-Related Equipment of the Borrower and
its Restricted Subsidiaries (excluding Secured Real Property Assets and Secured
Real Property-Related Equipment) are owned, beneficially and of record, free and
clear of all Liens (other than the Liens under the Security Documents) by the
Real Property Subsidiary.  All Base Stations which are directly or indirectly
owned by the Borrower or any of its Restricted Subsidiaries are owned,
beneficially and of record, free and clear of all Liens (other than Liens under
the Security Documents) by the Equipment Subsidiary or the Real Property
Subsidiary.

          SECTION 3.13.  Absence of Non-Permitted Obligations.  None of the
                         -------------------------------------
Special Purpose Subsidiaries has any obligations or liabilities other than (a)
under the Guarantee Agreement and the Security Agreement, (b) in the case of the
Real Property Subsidiary, under any lease of real property or equipment which it
has entered into in the ordinary course of business and for taxes incurred in
the ordinary course of business which are incident to being the owner or lessee
of real property and equipment, (c) in the case of any License Subsidiary, under
the Communications Act and in the case of THC, with respect to the Intercompany
THC Loans and FCC Debt, (d) in the case of the Equipment Subsidiary, under any
lease of equipment which it has entered into in the ordinary course of business
and for taxes incurred in the ordinary course of business which are incident to
being the owner or lessor of equipment and (e) taxes incurred in the ordinary
course in order for it to continue to maintain its existence.

          SECTION 3.14.  Licenses.  (i)  The Borrower and its Restricted
                         ---------
Subsidiaries have the full use and benefit of all Licenses necessary to operate
a System in the MTAs and BTAs listed on Parts A, B and C of Schedule 3.14 and
each other area in which the Borrower or any Subsidiary conducts a broadband
personal communications services business and will have the full use and benefit
of the Licenses listed on (a) Part D of Schedule 3.14 upon consummation of the
San Juan Acquisition, (b) Part E of Schedule 3.14 upon consummation of the LMDS
Merger, (c) Part F of Schedule 3.14 upon consummation of the Mercury
Acquisition, (d) Part G of Schedule 3.14 upon consummation of the San Diego
Merger and (e) Part H of Schedule 3.14 upon consummation of the Wireless 2000
Acquisition, (ii) such Licenses have been duly issued by the FCC, are (in the
case of Licenses listed on Parts A, B or C of Schedule 3.14) or will be (upon
<PAGE>

                                                                              83

consummation of the relevant transaction in the case of Licenses listed on Parts
D, E, F, G and H of Schedule 3.14) held by a License Subsidiary and are in full
force and effect and (iii) the Borrower and its Subsidiaries are in compliance
in all material respects with all of the provisions of each such License held by
any of them.

          SECTION 3.15.  No Burdensome Restrictions.  No Requirement of Law or
                         ---------------------------
Contractual Obligation (other than, in the case of clause (b) below, any
restriction under subsection 6.08(a)) applicable to the Borrower or any
Subsidiary could, as a result of compliance by the Borrower and the Subsidiaries
therewith, reasonably be expected to (a) have a Material Adverse Effect or (b)
limit the ability of any Restricted Subsidiary to pay dividends or to make
distributions or advances to the Borrower or any other Restricted Subsidiary.

          SECTION 3.16.  Use of Proceeds.  The Borrower will use the proceeds of
                         ----------------
the Loans to fund capital expenditures related to the construction of the
Network, the acquisition of Related Businesses, working capital needs of the
Borrower and subscriber acquisition costs and will request the issuance of
Letters of Credit only to support payment obligations incurred in the ordinary
course of business by the Borrower and the Restricted Subsidiaries.

          SECTION 3.17.  Flood Insurance.  To the extent reasonably available,
                         ----------------
the Borrower has obtained for all Mortgaged Properties which are located in a
"flood hazard area", as designated in any Flood Insurance Rate Map published by
the Federal Emergency Management Agency, such flood insurance in such total
amount as the Administrative Agent has from time to time reasonably required.

          SECTION 3.18.  Insurance.  Schedule 3.18 sets forth a description of
                         ----------
all insurance maintained by or on behalf of the Borrower and its Restricted
Subsidiaries as of the Effective Date.  As of the Effective Date, all premiums
in respect of such insurance have been paid.

          SECTION 3.19.  Labor Matters.  As of the Effective Date, there are no
                         --------------
strikes, lockouts or slowdowns against the Borrower or any Subsidiary pending
or, to the knowledge of the Borrower, threatened.  With such exceptions as could
not reasonably be expected to result in a Material Adverse Effect, (i) the hours
worked by and payments made to
<PAGE>

                                                                              84

employees of the Borrower and the Subsidiaries have not been in violation of the
Fair Labor Standards Act or any other applicable Federal, state, local or
foreign law dealing with such matters and (ii) all payments due from the
Borrower or any Subsidiary, or for which any claim may be made against the
Borrower or any Subsidiary, on account of wages and employee health and welfare
insurance and other benefits, have been paid or accrued as a liability on the
books of the Borrower or such Subsidiary.

          SECTION 3.20.  Solvency.  Immediately after the consummation of the
                         ---------
Transactions to occur on the Effective Date and immediately following the making
of each Loan made on the Effective Date and after giving effect to the
application of the proceeds of such Loans and the provisions of the Indemnity,
Subrogation and Contribution Agreement, (a) the fair value of the assets of each
Loan Party, at a fair valuation, will exceed its debts and liabilities,
subordinated, contingent or otherwise; (b) the present fair saleable value of
the property of each Loan Party will be greater than the amount that will be
required to pay the probable liability of its debts and other liabilities,
subordinated, contingent or otherwise, as such debts and other liabilities
become absolute and matured; (c) each Loan Party will be able to pay its debts
and liabilities, subordinated, contingent or otherwise, as such debts and
liabilities become absolute and matured; and (d) each Loan Party will not have
unreasonably small capital with which to conduct the business in which it is
engaged as such business is now conducted and is proposed to be conducted
following the Effective Date.

          SECTION 3.21.  FCC Compliance.  (a)  The Borrower and each Subsidiary
                         ---------------
are in compliance in all material respects with the Communications Act and all
requirements of the FCC, including its Very Small Business requirements.

          (b)  The Borrower has no knowledge of any investigation, notice of
apparent liability, violation, forfeiture or other order or complaint issued by
or before the FCC, or of any other proceedings (other than proceedings relating
to the wireless communications industries generally) of or before the FCC, which
could reasonably be expected to have a Material Adverse Effect except as set
forth in Schedule 3.21.
<PAGE>

                                                                              85

          (c)  No event has occurred which (i) results in, or after notice or
lapse of time or both would result in, revocation, suspension, adverse
modifications, non-renewal, impairment, restriction or termination of, or order
of forfeiture with respect to, any License in any respect which could reasonably
be expected to have a Material Adverse Effect or (ii) affects or could
reasonably be expected in the future to affect any of the rights of the Borrower
or any License Subsidiary under any License held by the Borrower or any License
Subsidiary in any respect which could reasonably be expected to have a Material
Adverse Effect.

          (d)  The Borrower and each License Subsidiary have duly filed in a
timely manner all material filings, reports, applications, documents,
instruments and information required to be filed by it under the Communications
Act, and all such filings were when made true, correct and complete in all
material respects.

          (e)  The Borrower has no reason to believe that each License of the
Borrower or any Subsidiary will not be renewed in the ordinary course.

          SECTION 3.22.  Security Documents.  (a)  The Pledge Agreement is
                         -------------------
effective to create in favor of the Administrative Agent, for the ratable
benefit of the Secured Parties, a legal, valid and enforceable security interest
in the Collateral (as defined in the Pledge Agreement) and, when the Collateral
is delivered to the Administrative Agent, the Pledge Agreement shall create a
fully perfected first priority Lien on, and security interest in, all right,
title and interest of the pledgors thereunder in such Collateral, in each case
prior and superior in right to any other Person.

          (b)  The Security Agreement is effective to create in favor of the
Administrative Agent, for the ratable benefit of the Secured Parties, a legal,
valid and enforceable security interest in the Collateral (as defined in the
Security Agreement) and, when financing statements in appropriate form are filed
in the offices specified on Schedule 6 to the Perfection Certificate, the
Security Agreement shall constitute a fully perfected Lien on, and security
interest in, all right, title and interest of the grantors thereunder in such
Collateral (other than the Intellectual Property, as defined in the Security
Agree-
<PAGE>

                                                                              86

ment), in each case prior and superior in right to any other Person, other than
with respect to Liens expressly permitted by Section 6.02. Following an Event of
Default, the Borrower's rights under the PCS Documents (other than the
Stockholders Agreement) will be enforceable by the Lenders; provided, however,
                                                            --------  -------
that the Administrative Agent shall not assign the Network Licensing Agreement
to a third party without first obtaining AW's consent.

          (c)  When the Security Agreement is filed in the United States Patent
and Trademark Office and the United States Copyright Office, and, with respect
to Collateral in which a security interest cannot be perfected by such filings,
upon the filing of the financing statements referred to in paragraph (b) above,
the Security Agreement and such financing statements shall constitute a fully
perfected Lien on, and security interest in, all right, title and interest of
the grantors thereunder in the Intellectual Property (as defined in the Security
Agreement), in each case prior and superior in right to any other Person (it
being understood that subsequent recordings in the United States Patent and
Trademark Office and the United States Copyright Office may be necessary to
perfect a lien on registered trademarks, trademark applications and copyrights
acquired by the grantors after the date hereof), other than with respect to
Liens expressly permitted by Section 6.02.

          (d)  The Mortgages are effective to create in favor of the
Administrative Agent, for the ratable benefit of the Secured Parties, a legal,
valid and enforceable Lien on all of the Borrower's right, title and interest in
and to the Mortgaged Property thereunder and the proceeds thereof, and when the
Mortgages are filed in the offices specified on Schedule 3.22, the Mortgages
shall constitute a fully perfected Lien on, and security interest in, all right,
title and interest of the Borrower in such Mortgaged Property and the proceeds
thereof, in each case prior and superior in right to any other Person, other
than with respect to the rights of Persons pursuant to Liens expressly permitted
by Section 6.02.

          SECTION 3.23.  Copyrights, Trademarks, etc.  The Borrower and the
                         ----------------------------
Restricted Subsidiaries own, or, to the best of their knowledge, are licensed to
use, all copyrights, trademarks, trade names, patents, technology, know-how and
processes, service marks and rights with
<PAGE>

                                                                              87

respect to the foregoing that are (a) used in or necessary for the conduct of
their respective businesses as currently conducted and (b) material to the
business, assets, operations, properties, prospects or condition (financial or
otherwise) of the Borrower and the Restricted Subsidiaries taken as a whole. The
use of such copyrights, trademarks, trade names, patents, technology, know-how
and processes, service marks and rights with respect to the foregoing by the
Borrower and the Restricted Subsidiaries does not infringe on the rights of any
Person.

          SECTION 3.24.  Federal Regulations.  No part of the proceeds of any
                         --------------------
Loans or any Letter of Credit will be used in any manner which would result in a
violation of Regulation U or X of the Board as now and from time to time
hereafter in effect or to buy or carry "margin stock" (as defined thereunder) or
to refinance any Indebtedness incurred for such purpose.

          SECTION 3.25.  Year 2000.  Any reprogramming required to permit the
                         ----------
proper functioning, in and following the year 2000, of (i) the Borrower's
computer systems and equipment containing embedded microchips (including systems
and equipment supplied by others or with which Borrower's systems interface) and
the testing of all such systems and equipment, as so reprogrammed, will be
completed by January 1, 1999.  The cost to the Borrower of such reprogramming
and testing and of the reasonably foreseeable consequences of year 2000 to the
Borrower (including, without limitation, reprogramming errors and the failure of
others' systems or equipment) will not result in a Default or a Material Adverse
Effect.  Except for such of the reprogramming referred to in the preceding
sentence as may be necessary, the computer and management information systems of
the Borrower and its Subsidiaries are and, with ordinary course upgrading and
maintenance, will continue for the term of this Agreement to be, sufficient to
permit the Borrower to conduct its business without Material Adverse Effect.
<PAGE>

                                                                              88

                                  ARTICLE IV

                                  Conditions
                                  ----------

          SECTION 4.01.  Effective Date.  The obligations of the Lenders to make
                         ---------------
Loans and of the Issuing Bank to issue Letters of Credit hereunder shall not
become effective until the date on which each of the following conditions is
satisfied (or waived in accordance with Section 9.02):

          (a)  The Administrative Agent (or its counsel) shall have received
     from each party hereto either (i) a counterpart of this Agreement signed on
     behalf of such party or (ii) written evidence satisfactory to the
     Administrative Agent (which may include telecopy transmission of a signed
     signature page of this Agreement) that such party has signed a counterpart
     of this Agreement.

          (b)  The Administrative Agent shall have received a favorable written
     opinion (addressed to the Administrative Agent and the Lenders and dated
     the Effective Date) of (i) McDermott, Will & Emery, counsel for the
     Borrower substantially in the form of Exhibit B-1 and (ii) Wiley, Rein &
     Fielding, special counsel to the Borrower with respect to FCC matters,
     substantially in the form of Exhibit B-2 and, in the case of each such
     opinion required by this paragraph, covering such other matters relating to
     the Loan Parties, the Loan Documents or the Transactions as the Required
     Lenders shall reasonably request.  The Borrower hereby requests such
     counsel to deliver such opinions.

          (c)  The Administrative Agent shall have received (i) a certificate of
     the Secretary or Assistant Secretary of the Borrower and each Subsidiary
     Loan Party dated the Effective Date and certifying (A) that attached
     thereto is a true and complete copy of the by-laws, operating agreement or
     partnership agreement of such Loan Party as in effect on the Effective Date
     and at all times since a date prior to the date of the resolutions
     described in clause (B) below, (B) that attached thereto is a true and
     complete copy of resolutions duly adopted by the board of directors (or
     equivalent governing body), members or partners of the Borrower and each
     Subsidiary Loan Party authorizing the execution, delivery and performance
     of the Loan
<PAGE>

                                                                              89

     Documents to which such Person is a party and, in the case of the Borrower,
     the borrowings hereunder, and that such resolutions have not been modified,
     rescinded or amended and are in full force and effect, and (C) as to the
     incumbency and specimen signature of each officer or partner of the
     Borrower (or its general partner) and any Subsidiary Loan Party executing
     any Loan Document on behalf of such Loan Party; (ii) a certificate of
     another officer as to the incumbency and specimen signature of the
     Secretary or Assistant Secretary executing the certificate pursuant to (i)
     above; and (iii) such other documents as the Lenders or Cravath, Swaine &
     Moore, counsel for the Administrative Agent, may reasonably request.

          (d)  The Administrative Agent shall have received a certificate, dated
     the Effective Date and signed by the President, a Vice President or a
     Financial Officer of the Borrower, confirming compliance with the
     conditions set forth in paragraphs (a) and (b) of Section 4.02.

          (e)  The Administrative Agent shall have received all fees and other
     amounts due and payable on or prior to the Effective Date, including, to
     the extent invoiced, reimbursement or payment of all out-of-pocket expenses
     required to be reimbursed or paid by any Loan Party hereunder or under any
     other Loan Document.

          (f)  The Borrower shall have transferred to (i) the Real Property
     Subsidiary all Real Property Assets and Real Property-Related Equipment
     other than (A) Real Property Assets constituting rights under leases that
     as of the date hereof prohibit such transfer (without regard to any such
     prohibition which contains exceptions if the Borrower or any other
     Subsidiary remains liable for the obligations under the applicable lease or
     if the Borrower or its Subsidiaries were to take other actions which are
     reasonably (considering the expenses involved) within their power to take
     ("Restricted Real Property Assets")), (B) equipment which constitutes a
       -------------------------------
     fixture to any Restricted Real Property Asset ("Restricted Real Property-
     Related Equipment") and (c) Secured Real Property Assets and Secured Real
     Property Related Equipment but in any event the Borrower shall have so
     transferred assets constituting at least 90% of the
<PAGE>

                                                                              90

     value of all Real Property Assets and Real Property-Related Equipment of
     the Borrower and its Subsidiaries (excluding Secured Real Property Assets
     and Secured Real Property-Related Equipment) as of the date hereof and
     provided evidence reasonably satisfactory to the Administrative Agent of
     the transfers described above, (ii) the Equipment Subsidiary or the Real
     Property Subsidiary all Base Stations which are held directly or indirectly
     by the Borrower or any of its Restricted Subsidiaries and (iii) a License
     Subsidiary all Licenses which are directly or indirectly held by the
     Borrower or any of its Restricted Subsidiaries (including the Licenses for
     the MTAs and BTAs listed on Schedule 3.14), free and clear of all Liens
     whatsoever (other than Liens created by the Security Documents and, with
     respect to any License Subsidiary, Liens arising under the Communications
     Act), and each Special Purpose Subsidiary shall have entered into a Special
     Purpose Subsidiary Funding Agreement with the Borrower.

          (g)  The Pledge Agreement shall have been duly executed by the parties
     thereto, shall have been delivered to the Administrative Agent and shall be
     in full force and effect, and all the outstanding (i) intercompany
     Indebtedness owed to any Loan Party by the Borrower or any Subsidiary and
     (ii) equity interests that are owned by the Borrower or any Subsidiary Loan
     Party (in each case as of the Effective Date after giving effect to the
     Transactions) (A) shall have been duly and validly pledged thereunder to
     the Administrative Agent for the ratable benefit of the Secured Parties,
     and (B) certificates representing such equity interests (except that such
     certificates representing equity interests in a Foreign Subsidiary may be
     limited to 65% of the outstanding shares of such partnership interests or
     equity interests in such Foreign Subsidiary) and promissory notes
     evidencing such intercompany Indebtedness shall be in the actual possession
     of the Administrative Agent, accompanied by stock powers or other
     instruments of transfer, endorsed in blank, with respect to such
     certificates and such promissory notes.

          (h)  The Security Agreement shall have been duly executed by the
     parties thereto, shall have been delivered to the Administrative Agent and
     shall be in full force and effect, and all documents and
<PAGE>

                                                                              91

     instruments, including Uniform Commercial Code financing statements,
     required by law or reasonably requested by the Administrative Agent to be
     filed, registered or recorded to create or perfect the Liens intended to be
     created under the Security Agreement shall have been delivered to the
     Administrative Agent.

          (i)  The Administrative Agent shall have received a completed
     Perfection Certificate (giving effect to the Transactions) dated the
     Effective Date and signed by an executive officer or Financial Officer of
     the Borrower, together with all attachments contemplated thereby, including
     the results of a search of the Uniform Commercial Code (or equivalent)
     filings made with respect to the Borrower and the Subsidiary Loan Parties
     in the jurisdictions contemplated by the Perfection Certificate and copies
     of the financing statements (or similar documents) disclosed by such search
     and evidence reasonably satisfactory to the Administrative Agent that the
     Liens indicated by such financing statements (or similar documents) are
     permitted by Section 6.02 or have been released.

          (j)  The Guarantee Agreement shall have been duly executed by the
     Subsidiary Loan Parties and the Administrative Agent, shall have been
     delivered to the Administrative Agent and shall be in full force and
     effect.

          (k)  The Indemnity, Subrogation and Contribution Agreement shall have
     been duly executed by the parties thereto, shall have been delivered to the
     Administrative Agent and shall be in full force and effect.

          (l)  The Administrative Agent shall have received evidence
     satisfactory to it that the insurance required by Section 5.07 is in
     effect.

          (m)  The Administrative Agent shall have received from the Borrower a
     photocopy, certified to be true and complete, of its Licenses for the MTAs
     and BTAs listed in Schedule 3.14 and such Licenses shall be owned by the
     Borrower free and clear of all Liens other than liens imposed by the
     Communications Act.

          (n)  The Administrative Agent shall have received from the Borrower
     conformed copies, certified and true
<PAGE>

                                                                              92

     and complete, of (i) the Securities Purchase Agreement, (ii) the Network
     License Agreement, (iii) the Stockholders Agreement, (iv) the Roaming
     Agreement, (v) the Resale Agreement and (vi) the Special Purpose Subsidiary
     Funding Agreements (copies of any of which will be delivered to any Lender
     upon request), none of which shall contain any material adverse change to
     the interests of the Lenders as compared with the final form of each such
     agreement delivered to the Administrative Agent prior to the date hereof.
     Each of the agreements referred to in the previous sentence (other than the
     Resale Agreement) shall have been duly executed and delivered on behalf of
     each party thereto, shall have been duly authorized thereby, and shall
     constitute a legal, valid and binding obligation of such party, enforceable
     against such party in accordance with its terms, subject to the effects of
     bankruptcy, insolvency, reorganization, moratorium and other similar laws
     relating to or affecting creditors' rights generally, general equitable
     principles (whether considered in a proceeding in equity or at law); and
     the Borrower shall have delivered to the Lenders a certificate of a
     Responsible Officer as to the accuracy of the foregoing.

          (o)  To the extent not expressly contemplated in the final form of
     Securities Purchase Agreement or the final form of Restated Certificate of
     Incorporation delivered to the Administrative Agent prior to May 12, 1998,
     the Administrative Agent shall be satisfied with (i) the corporate and
     capital structure of the Borrower and its subsidiaries, (ii) the
     contributions to the Borrower's equity and (iii) all legal, tax and
     accounting matters related to the formation, capitalization and operations
     of the Borrower.

          (p)  The Borrower shall have entered into (i) supply contracts with
     vendors for the build out of the Network and the acquisition of related
     equipment, and, to the extent material, such contracts shall be reasonably
     satisfactory to the Administrative Agent and (ii) such other agreements
     with third parties as may be reasonably necessary to the conduct of its
     proposed operations in accordance with its business plan.

          (q)  The Borrower shall have received all scheduled cash capital
     contributions set forth on
<PAGE>

                                                                              93

     Schedule I to the Securities Purchase Agreement, including contributions of
     $40,000,000 in cash on or prior to the Effective Date as set forth therein.

          (r)  Each of the Borrower, AW and the other parties thereto shall have
     executed and delivered to the Administrative Agent consents to assignment
     ("Consents to Assignment") to the Administrative Agent for the benefit of
     the Secured Parties, in form and substance satisfactory to the
     Administrative Agent, with respect to the Securities Purchase Agreement,
     the Network License Agreement and such of the other PCS Documents as are
     requested by the Administrative Agent; provided, however, that the Consent
                                            --------  -------
     to Assignment with respect to AW shall be set forth in the Network License
     Agreement and, with respect to the Network License Agreement, such Consent
     to Assignment will not permit the Administrative Agent to assign the
     Network License Agreement to any person other than the Lenders without
     first obtaining AW's consent.

          (s)  The terms and conditions of any Subordinated Debt, if any, and
     the provisions of the Subordinated Debt Documents, if any, shall be
     satisfactory to the Lenders and the Administrative Agent shall have
     received copies of any Subordinated Debt Documents, if any, certified by a
     Responsible Officer as complete and correct.

          (t)  All consents and approvals required to be obtained from any
     Governmental Authority or other Person in connection with the Transactions
     or the other transactions contemplated hereby shall have been obtained, and
     all applicable waiting periods and appeal periods shall have expired or,
     with respect to the consent of the FCC to the License Transfer (as defined
     in the Securities Purchase Agreement) a Final Order (as defined in the
     Securities Purchase Agreement) shall have been obtained, in each case
     without the imposition of any material conditions and there shall be no
     governmental or judicial action, actual or threatened, that could
     reasonably be expected to restrain, prevent or impose material conditions
     on the Transactions or the other transactions contemplated hereby.  To the
     extent contemplated by the terms of this Agreement and the Securities
     Purchase Agreement, the Transactions shall have been, or substantially
     simultaneously with
<PAGE>

                                                                              94

     the initial funding of Loans on the Effective Date shall be, consummated in
     accordance with the PCS Documents and applicable law, without any amendment
     to or waiver of any material terms or conditions of the PCS Documents not
     approved by the Required Lenders. The Administrative Agent shall have
     received copies of the PCS Documents and all certificates, opinions and
     other documents delivered thereunder, certified by a Responsible Officer as
     complete and correct and the PCS Documents shall contain no material
     changes adverse to the interests of the Lenders compared to the final form
     of such documents delivered to the Administrative Agent prior to May 12,
     1998.

          (u)  The Lenders shall have received a pro forma consolidated balance
     sheet of the Borrower as of the Closing Date, reflecting all pro forma
     adjustments as if the Transactions had been consummated on such date, and
     such pro forma consolidated balance sheets shall not be materially
     inconsistent with the projections previously provided to the Lenders.
     After giving effect to the Transactions, neither the Borrower nor any of
     its Subsidiaries shall have outstanding any shares of preferred stock or
     any Indebtedness, other than (i) Indebtedness incurred under the Loan
     Documents, (ii) preferred stock of the Borrower issued to AW and the other
     equity investors listed on Schedules I and II to the Securities Purchase
     Agreement pursuant to the terms of the Securities Purchase Agreement, (iii)
     Indebtedness owed to the FCC by THC in the amount of $13,000,000 (or, if
     the THC San Diego Merger has occurred, $22,200,000), (iv) the Series A
     Bonds and (v) the Subordinated Debt (if issued on or prior to the Closing
     Date) in an amount not to exceed $350,000,000.

          (v)  The Administrative Agent shall have received from the Borrower
     (i) the financial statements referred to in Section 3.04 and (ii) a
     certificate dated the Effective Date and duly executed by a Responsible
     Officer of the Borrower certifying that attached thereto is the annual
     budget of the Borrower for the fiscal year ending December 31, 1998 as well
     as a 10-year business plan of the Borrower satisfactory to the Lenders with
     quarterly projections for at least the two-year period following the
     Effective Date.
<PAGE>

                                                                              95

          (w)  There shall have been no material adverse change in the business,
     assets, results of operations, properties, prospects, financial condition
     or material agreements of THC, the Borrower and the Restricted
     Subsidiaries, taken as a whole, since December 31, 1997.

          (x)  The Borrower shall be in Pro Forma Compliance.

          (y)  After giving effect to the Transactions and the consummation of
     the other transactions contemplated hereby, amounts available under this
     Agreement shall be sufficient to meet the ongoing working capital
     requirements of the Borrower and the Subsidiaries in accordance with the
     projections set forth in the Information Memorandum.

          (z)  The amount of cash consideration received by the Borrower for the
     sale of its stock pursuant to the Securities Purchase Agreement plus the
     amount of cash consideration payable by investors for stock of the Borrower
     pursuant to binding commitments with the Borrower set forth in the
     Securities Purchase Agreement, shall be at least $128,000,000 or, if the
     Supplemental Closing (as defined in the Securities Purchase Agreement)
     occurs, at least $133,000,000.  The amount of cash consideration received
     by the Borrower for the sale of its stock to Equity Participants other than
     AW in connection with (x) the San Juan Acquisition (if such acquisition
     occurs on or prior to the Closing Date) shall be at least $39,700,000 and
     (y) the THC San Diego Merger (if such merger occurs on or prior to the
     Closing Date) shall be at least $41,000,000.  The Agents shall be satisfied
     with the identity of the equity holders of the Borrower other than AW and
     the Equity Participants.  The Administrative Agent shall be satisfied with
     the identity of the equity holders of the Borrower other than AW and the
     Equity Participants.

          (aa)  THC shall have become a wholly owned subsidiary of the Borrower.

          (bb)  The Extended Payment Terms Facility between the Borrower and
     Lucent shall have been repaid in full and all security interests relating
     thereto shall have been released.
<PAGE>

                                                                              96

          (cc)  The Borrower shall have purchased the Licenses described in Part
     D of Schedule 3.14 from AW for cash consideration of not more than
     $21,000,000.

The Administrative Agent shall notify the Borrower and the Lenders of the
Effective Date, and such notice shall be conclusive and binding.
Notwithstanding the foregoing, the obligations of the Lenders to make Loans
shall not become effective unless each of the foregoing conditions is satisfied
(or waived pursuant to Section 9.02) at or prior to 3:00 p.m., New York City
time, on the date hereof (and, in the event such conditions are not so satisfied
or waived, the Commitments shall terminate at such time).

          SECTION 4.02.  Each Credit Event.  The obligation of each Lender to
                         ------------------
make a Loan on the occasion of any Borrowing and of the Issuing Bank to issue
Letters of Credit, is subject to the satisfaction of the following conditions:

          (a)  The representations and warranties of each Loan Party set forth
     in the Loan Documents shall be true and correct in all material respects on
     and as of the date of such Credit Event except with respect to
     representations and warranties expressly made only as of the date hereof or
     the Effective Date which shall be true in all material respects as of such
     date.

          (b)  At the time of and immediately after giving effect to such Credit
     Event no Default shall have occurred and be continuing and the Borrower
     shall be in Pro Forma Compliance.

          (c)  At the time of and immediately after giving effect to such Credit
     Event, the Borrower shall be in Pro Forma Compliance with (i) if the
     Subordinated Debt has not been issued, the covenant set forth in subsection
     6.12(a) and (ii) if the Subordinated Debt has been issued, the covenant set
     forth in subsection 6.12(b); provided, however, that, after the Borrower
                                  --------  -------
     delivers the financial statements required for the fiscal quarter ended
     December 31, 2001 pursuant to Section 5.01, this clause (c) shall be deemed
     to have been satisfied if at the time of and immediately after giving
     effect to such Credit Event, the Borrower is in
<PAGE>

                                                                              97

     pro forma compliance with the covenants set forth in Section 6.12(g) and
     (i).

Each Credit Event shall be deemed to constitute a representation and warranty by
the Borrower on the date thereof as to the matters specified in paragraphs (a),
(b) and (c) of this Section.


                                   ARTICLE V

                             Affirmative Covenants
                             ---------------------

          Until the Commitments have expired or been terminated and the
principal of and interest on each Loan and all fees payable hereunder shall have
been paid in full and all Letters of Credit have been canceled or have expired
and all amounts drawn thereunder have been reimbursed in full the Borrower
covenants and agrees with the Lenders that:

          SECTION 5.01.  Financial Statements and Other Information.  The
                         -------------------------------------------
Borrower will furnish to the Administrative Agent and each Lender:

          (a) within 90 days after the end of each fiscal year its audited
     consolidated balance sheet and related statements of operations,
     stockholders' equity and cash flows as of the end of and for such year,
     setting forth in each case in comparative form the figures for the previous
     fiscal year, all reported on by Coopers & Lybrand, or other independent
     public accountants of recognized national standing (without a "going
     concern" or like qualification or exception and without any qualification
     or exception as to the scope of such audit) to the effect that such
     consolidated financial statements present fairly in all material respects
     the financial condition and results of operations of the Borrower and its
     Restricted Subsidiaries on a consolidated basis in accordance with GAAP
     consistently applied;

          (b) within 45 days after the end of each of the first three fiscal
     quarters of each fiscal year, its consolidated balance sheet and related
     statements of operations, stockholders' equity and cash flows as of the end
     of and for such fiscal quarter and the then
<PAGE>

                                                                              98

     elapsed portion of the fiscal year, setting forth in each case in
     comparative form the figures for the corresponding period or periods of
     (or, in the case of the balance sheet, as of the end of) the previous
     fiscal year, all certified by one of its Financial Officers as presenting
     fairly in all material respects the financial condition and results of
     operations of the Borrower and its Restricted Subsidiaries on a
     consolidated basis in accordance with GAAP consistently applied, subject to
     normal year-end audit adjustments and the absence of footnotes;

          (c) concurrently with any delivery of financial statements under
     clause (a) or (b) above, a certificate of a Financial Officer of the
     Borrower (i) certifying as to whether a Default has occurred and, if a
     Default has occurred, specifying the details thereof and any action taken
     or proposed to be taken with respect thereto, (ii) setting forth reasonably
     detailed calculations demonstrating compliance with Sections 6.08 and 6.12
     and (iii) stating whether any change in GAAP or in the application thereof
     has occurred since the date of the Borrower's audited financial statements
     referred to in Section 3.04 and, if any such change has occurred,
     specifying the effect of such change on the financial statements
     accompanying such certificate;

          (d) concurrently with any delivery of financial statements under
     clause (a) above, a certificate of the accounting firm that reported on
     such financial statements stating whether they obtained knowledge during
     the course of their examination of such financial statements of any Default
     (which certificate may be limited to the extent required by accounting
     rules or guidelines);

          (e) no more than 90 days after the commencement of fiscal year 1999
     and no more than 45 days after the commencement of each other fiscal year,
     a detailed consolidated budget for such fiscal year, broken down by fiscal
     quarters (including a projected consolidated balance sheet and related
     statements of projected operations and cash flow as of the end of and for
     each such fiscal quarter) and, promptly when available, any significant
     revisions of such budget;
<PAGE>

                                                                              99


          (f) promptly after the same become publicly available, copies of all
     periodic and other reports, proxy statements and other materials filed by
     the Borrower or any Subsidiary with the Securities and Exchange Commission,
     or any Governmental Authority succeeding to any or all of the functions of
     said Commission, or with any national securities exchange, as the case may
     be;

          (g) within 45 days after the end of each calendar month, a certificate
     of a Responsible Officer setting forth (A) the aggregate number of
     Subscribers at the end of the calendar month preceding such calendar month
     and (B) the aggregate number of Subscribers at the end of such calendar
     month;

          (h) within 45 days after the end of each fiscal quarter, a certificate
     of a Responsible Officer setting forth (A) the aggregate number of
     Subscribers whose service terminated during such fiscal quarter, (B) the
     aggregate number of Subscribers added during such fiscal quarter and (C)
     certain revenue and system build information;

          (i) within five Business Days after the same are sent, a copy of any
     financial statement, report or notice which the Borrower or any Subsidiary
     sends to any Person under or pursuant to or in connection with the
     Securities Purchase Agreement, the Network License Agreement, the
     Stockholders Agreement, the Roaming Agreement, the Resale Agreement or any
     other PCS Document, in each case if such statement, report or notice
     relates to an event that has resulted or could reasonably be expected to
     result in an Event of Default or a Material Adverse Effect; and, within
     five Business Days after the same are received by the Borrower or any
     Subsidiary, copies of all notices sent to any such Person under or pursuant
     to or in connection with any such agreement or instrument which notice
     relates to an event that has resulted or could reasonably be expected to
     result in an Event of Default or a Material Adverse Effect;

          (j) concurrently with any delivery of financial statements under
     clause (a) or (b) above, a balance sheet and related statements of
     operations, stockholders' equity and cash flows for each
<PAGE>

                                                                             100

     Unrestricted Subsidiary for the applicable period (each of which may be
     unaudited); and

          (k) promptly following any request therefor, such other information
     regarding the operations, business affairs and financial condition of the
     Borrower or any Subsidiary, or compliance with the terms of any Loan
     Document, or such consolidating financial statements, or such financial
     statements showing the results of operations or financial condition of any
     Unrestricted Subsidiary, as the Administrative Agent or any Lender may
     reasonably request.

          SECTION 5.02.  Notices of Material Events.  Upon a Responsible Officer
                         ---------------------------
having knowledge of the following, the Borrower will furnish to the
Administrative Agent, the Issuing Bank and each Lender prompt written notice of
the following:

          (a) the occurrence of any Default;

          (b) the filing or commencement of any action, suit or proceeding by or
     before any arbitrator or Governmental Authority against or affecting the
     Borrower or any Affiliate thereof that, if adversely determined, could
     reasonably be expected to result in a Material Adverse Effect;

          (c) the occurrence of any ERISA Event that, alone or together with any
     other ERISA Events that have occurred, could reasonably be expected to
     result in a Material Adverse Effect; and

          (d) any other development (other than general economic conditions and
     developments affecting the wireless industry generally) that results in, or
     could reasonably be expected to result in, a Material Adverse Effect.

Each notice delivered under this Section shall be accompanied by a statement of
a Financial Officer or other executive officer of the Borrower setting forth the
details of the event or development requiring such notice and any action taken
or proposed to be taken with respect thereto.

          SECTION 5.03.  Information Regarding Collateral.  (a)  The Borrower
                         ---------------------------------
will furnish to the Administrative Agent
<PAGE>

                                                                             101

prompt written notice of any change (i) in any Loan Party's corporate name or in
any trade name used to identify it in the conduct of its business or in the
ownership of its properties, (ii) in the location of any Loan Party's chief
executive office, its principal place of business, any office in which it
maintains books or records relating to Collateral owned by it or any office or
facility at which Collateral owned by it is located (including the establishment
of any such new office or facility), (iii) in any Loan Party's identity or
corporate structure or (iv) in any Loan Party's Federal Taxpayer Identification
Number. The Borrower agrees not to effect or permit any change referred to in
the preceding sentence unless all filings have been made under the Uniform
Commercial Code or otherwise that are required in order for the Administrative
Agent to continue at all times following such change to have a valid, legal and
perfected security interest in all the Collateral. The Borrower also agrees
promptly to notify the Administrative Agent if any material portion of the
Collateral is damaged or destroyed.

          (b)  Each year, at the time of delivery of annual financial statements
with respect to the preceding fiscal year pursuant to clause (a) of Section
5.01, the Borrower shall deliver to the Administrative Agent a certificate of a
Financial Officer of the Borrower (i) setting forth the information required
pursuant to Section 2 of the Perfection Certificate or confirming that there has
been no change in such information since the date of the Perfection Certificate
delivered on the Effective Date or the date of the most recent certificate
delivered pursuant to this Section and (ii) certifying that all Uniform
Commercial Code financing statements (including fixture filings, as applicable)
or other appropriate filings, recordings or registrations, including all
refilings, rerecordings and reregistrations, containing a description of the
Collateral have been filed of record in each governmental, municipal or other
appropriate office in each jurisdiction identified pursuant to clause (i) above
to the extent necessary to protect and perfect the security interests under the
Security Agreement for a period of not less than 18 months after the date of
such certificate (except as noted therein with respect to any continuation
statements to be filed within such period).

          SECTION 5.04.  Existence; Conduct of Business.  The Borrower will, and
                         -------------------------------
will cause each of its Subsidiaries
<PAGE>

                                                                             102

to, do or cause to be done all things necessary to preserve, renew and keep in
full force and effect its legal existence and except to the extent it could not
reasonably be expected to have a Material Adverse Effect, all the rights,
licenses, permits, privileges, franchises, patents, copyrights, trademarks and
trade names used in or necessary for the conduct of its business; provided that
                                                                  --------
the foregoing shall not prohibit any merger, consolidation, liquidation or
dissolution permitted under Section 6.04.

          SECTION 5.05.  Payment of Obligations.  The Borrower will, and will
                         -----------------------
cause each of its Subsidiaries to, pay its Indebtedness and other obligations,
including Tax liabilities, before the same shall become delinquent or in
default, except where (a) the validity or amount thereof is being contested in
good faith by appropriate proceedings, (b) the Borrower or such Subsidiary has
set aside on its books reserves with respect thereto in accordance with GAAP,
(c) such contest effectively suspends collection of the contested obligation and
the enforcement of any Lien securing such obligation and (d) the failure to make
payment pending such contest could not reasonably be expected to result in a
Material Adverse Effect.

          SECTION 5.06.  Maintenance of Properties.  The Borrower will, and will
                         --------------------------
cause each of its Subsidiaries to, maintain (i) all property necessary to the
conduct of its business in good working order and condition with such exceptions
as would not have a Material Adverse Effect and (ii) its accounting, software
and billing systems and controls at a level consistent with the standards of
other reputable wireless services providers and reasonably required in
connection with the Borrower's business.

          SECTION 5.07.  Insurance.  The Borrower will, and will cause each of
                         ----------
its Subsidiaries to, maintain, with financially sound and reputable insurance
companies insurance on all its property in at least such amounts and against at
least such risks as are usually insured against by companies engaged in the same
or a similar business in the same or similar locations, and furnish to the
Administrative Agent, promptly upon written request therefor, full information
as to the insurance carried.

          SECTION 5.08.  Casualty and Condemnation.  (a)  The Borrower will
                         --------------------------
furnish to the Administrative Agent and the Lenders prompt written notice of any
casualty or
<PAGE>

                                                                             103

other insured damage to any portion of any Collateral or the commencement of any
action or proceeding for the taking of any Collateral or any part thereof or
interest therein under power of eminent domain or by condemnation or similar
proceeding.

          (b)  If any event described in paragraph (a) of this Section results
in Net Proceeds (whether in the form of insurance proceeds, condemnation award
or otherwise), the Administrative Agent is authorized to collect such Net
Proceeds and, if received by the Borrower or any Subsidiary, such Net Proceeds
shall be paid over to the Administrative Agent; provided that (i) if the
                                                --------
aggregate Net Proceeds in respect of such event (other than proceeds of business
income insurance) are less than $3,000,000, such Net Proceeds shall be paid over
to the Borrower unless a Default has occurred and is continuing, and (ii) all
proceeds of business income insurance shall be paid over to the Borrower unless
a Default has occurred and is continuing.  All such Net Proceeds retained by or
paid over to the Administrative Agent shall be held by the Administrative Agent
and released from time to time to pay the costs of repairing, restoring or
replacing the affected property in accordance with the terms of the applicable
Security Document (subject to the provisions of the applicable Security Document
regarding application of such Net Proceeds during a Default).

          (c)  If any Net Proceeds retained by or paid over to the
Administrative Agent as provided above continue to be held by the Administrative
Agent on the date that is 270 days after the occurrence of the event resulting
in such Net Proceeds, then such Net Proceeds shall be applied to prepay Term
Borrowings as provided in Section 2.09(b).

          SECTION 5.09.  Books and Records; Inspection and Audit Rights.  The
                         -----------------------------------------------
Borrower will, and will cause each of its Subsidiaries to, keep proper books of
record and account in which entries which are accurate and complete in all
material respects are made of all dealings and transactions in relation to its
business and activities.  The Borrower will, and will cause each of its
Subsidiaries to, permit any representatives designated by the Administrative
Agent or any Lender, upon reasonable prior notice, to visit and inspect its
properties, to examine and make extracts from its books and records, and to
discuss its affairs, finances and condition with its officers and independent
accountants,
<PAGE>

                                                                             104

all at such reasonable times and as often as reasonably requested.

          SECTION 5.10.  Compliance with Laws.  The Borrower will, and will
                         ---------------------
cause each of its Subsidiaries to, comply with all laws, rules, regulations and
orders of any Governmental Authority applicable to it or its property and to
comply in all respects with all of its Contractual Obligations, except where the
failure to do so, individually or in the aggregate, could not reasonably be
expected to result in a Material Adverse Effect.

          SECTION 5.11.  Use of Proceeds.  The proceeds of the Loans, together
                         ----------------
with the proceeds of the Initial Equity Contributions and the Subordinated Debt,
if any, will be used only to fund capital expenditures related to the
construction of the Network, the acquisition of Related Businesses, working
capital needs of the Borrower and subscriber acquisition costs and Letters of
Credit will be issued only to support payment obligations incurred in the
ordinary course of business by the Borrower and the Restricted Subsidiary.  No
part of the proceeds of any Loan and no Letter of Credit will be used, whether
directly or indirectly, (i) to make any investment in, or finance the
acquisition of, any Unrestricted Subsidiary or (ii) for any purpose that entails
a violation of any of the Regulations of the Board, including Regulations U and
X.

          SECTION 5.12.  Additional Subsidiaries.  If any additional Subsidiary
                         ------------------------
is formed or acquired after the Effective Date, the Borrower will notify the
Administrative Agent and the Lenders thereof and (a) if such Subsidiary is a
Subsidiary Loan Party, the Borrower will cause such Subsidiary to become a party
to the Pledge Agreement (if such Subsidiary owns capital stock or intercompany
Indebtedness), the Security Agreement, the Guarantee Agreement and the
Indemnity, Subrogation and Contribution Agreement as contemplated under each
agreement, within three Business Days after such Subsidiary is formed or
acquired and promptly take such actions to create and perfect Liens on such
Subsidiary's assets to secure the Obligations as the Administrative Agent or the
Required Lenders shall reasonably request and (b) if any shares of Capital Stock
or Indebtedness of such Subsidiary (other than an Unrestricted Subsidiary) are
owned by or on behalf of any Loan Party, the Borrower will cause such shares and
promissory notes evidencing such Indebtedness to be pledged pursuant to the
<PAGE>

                                                                             105

Pledge Agreement within three Business Days after such Subsidiary is formed or
acquired (except that, if such Subsidiary is a Foreign Subsidiary, shares of
common stock of such Subsidiary to be pledged pursuant to the Pledge Agreement
may be limited to 65% of the outstanding shares of common stock of such
Subsidiary).

          SECTION 5.13.  Further Assurances.  (a)  The Borrower will, and will
                         -------------------
cause each Loan Party to, execute any and all further documents, financing
statements, agreements and instruments, and take all such further actions
(including the filing and recording of financing statements, fixture filings,
mortgages, deeds of trust and other documents), which may be required under any
applicable law, or which the Administrative Agent or the Required Lenders may
reasonably request, to effectuate the transactions contemplated by the Loan
Documents or to grant, preserve, protect or perfect the Liens created or
intended to be created by the Security Documents or the validity or priority of
any such Lien, all at the expense of the Loan Parties.  The Borrower also agrees
to provide to the Administrative Agent, from time to time upon request, evidence
reasonably satisfactory to the Administrative Agent as to the perfection and
priority of the Liens created or intended to be created by the Security
Documents (including opinions of local counsel in the jurisdictions in which
assets of any Loan Party are located).

          (b)  If any material assets (including any real property or
improvements thereto or any interest therein) are acquired by the Borrower or
any Loan Party after the Effective Date (other than assets constituting
Collateral under the Security Documents that become subject to the Lien of the
Security Documents upon acquisition thereof), the Borrower will notify the
Administrative Agent and the Lenders thereof, and, if requested by the
Administrative Agent or the Required Lenders, the Borrower will cause such
assets to be subjected to a Lien securing the Obligations and will take, and
cause the Loan Parties to take, such actions as shall be necessary or reasonably
requested by the Administrative Agent to grant and perfect such Liens, including
actions described in paragraph (a) of this Section, all at the expense of the
Borrower.  In addition, if (i) any License is acquired by the Borrower or any
Subsidiary (other than a License Subsidiary) the Borrower will promptly transfer
or cause the transfer to a License Subsidiary of such License, (ii) any Real
Property Assets
<PAGE>

                                                                             106

(other than Restricted Real Property Assets, Secured Real Property Assets and
Excluded Real Property Assets) or any Real Property-Related Equipment (other
than Restricted Real Property-Related Equipment, Secured Real Property-Related
Equipment and Excluded Real Property Equipment) is acquired by the Borrower or
any Subsidiary (other than the Real Property Subsidiary) the Borrower will
promptly transfer or cause the transfer of such assets to the Real Property
Subsidiary, (iii) any Base Station is acquired by the Borrower or any Subsidiary
(other than the Equipment Subsidiary or the Real Property Subsidiary) the
Borrower will promptly transfer or cause the transfer of such Base Station to
the Equipment Subsidiary or the Real Property Subsidiary and (iv) any fee
interests in real property having at the time of acquisition thereof a purchase
price or fair market value greater than $1,000,000 (a "Mortgaged Property") are
                                                       ------------------
acquired by the Borrower or any Subsidiary after the date hereof (including
Mortgaged Properties of any Person that becomes a Subsidiary or is merged with
or into or consolidated with the Borrower or any Subsidiary) the Borrower will
promptly create or cause to be created a first priority perfected Mortgage in
favor of the Administrative Agent for the benefit of the Secured Parties on, and
pay all recording taxes, title insurance costs, survey costs and other costs in
connection with such Mortgage.

          SECTION 5.14.  Interest Rate Protection.  As promptly as practicable,
                         -------------------------
and in any event within 90 days after the Effective Date, the Borrower will
enter into, and thereafter until the final maturity of all the Loans, will
maintain in effect, one or more interest rate protection agreements with one or
more Lenders or Affiliates of Lenders on such terms as shall be reasonably
satisfactory to the Administrative Agent, the effect of which shall be to fix or
limit the interest cost to the Borrower with respect to at least 50% of the
outstanding Indebtedness of the Borrower (other than indebtedness which bears
interest at a fixed rate) at a maximum rate reasonably acceptable to the
Administrative Agent.

          SECTION 5.15.  Satisfaction of F-Block License Requirements.  The
                         ---------------------------------------------
Borrower and its Subsidiaries shall take all actions necessary to satisfy the
FCC's Very Small Business requirements and all Requirements of Law the Borrower
and its Subsidiaries are required to comply with in order for the Borrower and
THC to be permitted to hold F-Block Licenses.
<PAGE>

                                                                             107

                                  ARTICLE VI

                              Negative Covenants
                              ------------------

          Until the Commitments have expired or terminated and the principal of
and interest on each Loan and all fees  payable hereunder have been paid in full
and all Letters of Credit have been canceled or have expired and all amounts
drawn thereunder have been reimbursed in full, the Borrower covenants and agrees
with the Lenders that:

          SECTION 6.01.  Indebtedness; Certain Equity Securities.  (a)  The
                         ----------------------------------------
Borrower will not, and will not permit any Restricted Subsidiary to, create,
incur, assume or permit to exist any Indebtedness, except:

          (i) Indebtedness created under the Loan Documents;

          (ii) the Subordinated Debt issued on terms reasonably satisfactory to
     the Required Lenders in an aggregate principal amount not to exceed
     $350,000,000 minus the principal amount of any Series B Bonds outstanding;
     provided that the proceeds of the Subordinated Debt shall be used by the
     --------
     Borrower solely to fund the build-out of the Network and to make
     prepayments of the Series B Bonds permitted by Section 6.08(b)(vi);

          (iii) Indebtedness of the Borrower to any Restricted Subsidiary (other
     than any Special Purpose Subsidiary) and of any Restricted Subsidiary
     (other than any Special Purpose Subsidiary) to the Borrower or any other
     Restricted Subsidiary (other than any Special Purpose Subsidiary); provided
                                                                        --------
     that Indebtedness of any Restricted Subsidiary that is not a Loan Party to
     the Borrower or any Subsidiary Loan Party shall be subject to Section 6.05;

          (iv) Guarantees by the Borrower of Indebtedness of any Restricted
     Subsidiary (other than any Special Purpose Subsidiary) and by any
     Restricted Subsidiary (other than any Special Purpose Subsidiary) of
     Indebtedness of the Borrower or any other Restricted Subsidiary (other than
     any Special Purpose Subsidiary); provided that (i) Guarantees by the
                                      --------
     Borrower or any
<PAGE>

                                                                             108

     Subsidiary Loan Party of Indebtedness of any Subsidiary that is not a Loan
     Party shall be subject to Section 6.05 and (ii) a Subsidiary shall not
     Guarantee the Series A Bonds or the Series B Bonds and shall not Guarantee
     the Subordinated Debt unless (A) such Subsidiary also has Guaranteed the
     Obligations pursuant to the Guarantee Agreement, (B) such Guarantee of the
     Subordinated Debt is subordinated to such Guarantee of the Obligations on
     terms no less favorable to the Lenders than the subordination provisions of
     the Subordinated Debt and (C) such Guarantee of the Subordinated Debt
     provides for the release and termination thereof, without action by any
     party, upon any release and termination of such Guarantee of the
     Obligations;

          (v) the Series A Bonds in an aggregate principal amount not to exceed
     $80 million at any time outstanding and the Series B Bonds of the Borrower
     in an aggregate principal amount not to exceed $80 million at any time
     outstanding; provided, however, that (i) the proceeds of such bonds shall
                  --------  -------
     be used by the Borrower solely to fund the build-out of the Network,
     including in the Expansion Areas (as defined in the Lucent Note Purchase
     Agreement), (ii) such bonds will be subordinated to all the Obligations on
     the terms set forth in the Lucent Note Purchase Agreement and (iii) until 6
     months after the Tranche B Maturity Date, no principal or interest payments
     may be made with respect thereto except for (x) prepayments of the Series B
     Bonds in accordance with the terms of Section 10.5 of the Lucent Note
     Purchase Agreement and (y) prepayments of the Series A Bonds with up to 50%
     of the net cash proceeds received from the issuance and sale of equity
     securities by the Borrower; provided, that no prepayment of the Series A
                                 --------  ----
     Bonds will be made as a result of (A) sales of stock necessary to provide
     the initial $128,000,000 of cash equity capitalization of the Borrower or,
     if the Supplemental Closing (as defined in the Securities Purchase
     Agreement) occurs, the initial $133,000,000 of cash equity capitalization
     of the Borrower, (B) the issuance by the Borrower of approximately
     $39,900,000 of stock to AW and approximately $39,700,000 of stock to
     certain of the Equity Participants in connection with the San Juan
     Acquisition and (C) the issuance of approximately $4,800,000 million of
     stock to stockholders of THC
<PAGE>

                                                                             109

     San Diego and approximately $41,000,000 of stock to certain of the Equity
     Participants in connection with the THC San Diego Merger.

          (vi) Capital Lease Obligations of the Borrower or any Restricted
     Subsidiary (other than any Special Purpose Subsidiary) with respect to the
     leasing of tower sites and equipment that is a fixture thereto; provided
                                                                     --------
     that such Capital Lease Obligations shall not exceed $25,000,000 in
     aggregate principal amount at any time outstanding;

          (vii) Indebtedness (other than Indebtedness described in (v) or (vi)
     above) of the Borrower or any Restricted Subsidiary (other than any Special
     Purpose Subsidiary) incurred to finance the acquisition, construction or
     improvement of any fixed or capital assets, including Capital Lease
     Obligations and any Indebtedness assumed in connection with the acquisition
     of any such assets or secured by a Lien on any such assets prior to the
     acquisition thereof, and extensions, renewals and replacements of any such
     Indebtedness that do not increase the outstanding principal amount thereof
     or result in an earlier maturity date or decreased weighted average life
     thereof; provided that such Indebtedness is incurred prior to or within 180
              --------
     days after such acquisition or the completion of such construction or
     improvement and shall not exceed $10,000,000 in aggregate principal amount
     at any time outstanding;

          (viii) FCC Debt assumed in connection with (a) the THC San Diego
     Merger in the amount of $8,200,000, (b) the Mercury Acquisition in the
     amount of $4,100,000 and (c) the Wireless 2000 Acquisition in the amount of
     $7,000,000.

          (ix) Indebtedness other than FCC Debt permitted by clause (viii) of
     any Restricted Subsidiary acquired after the date hereof; provided that (A)
     such Indebtedness exists at the time such Restricted Subsidiary is acquired
     and is not created in contemplation of or in connection with such
     acquisition and (B) the aggregate Indebtedness acquired in connection with
     all such acquisitions does not exceed $20,000,000 at any time outstanding
     and (C) the
<PAGE>

                                                                             110

     aggregate Indebtedness acquired which is not FCC Debt does not exceed
     $5,000,000;

          (x)    Indebtedness of the Borrower and the Restricted Subsidiaries
     existing on the date hereof and set forth on Schedule 6.01;

          (xi)   Indebtedness arising under customary indemnification and
     purchase price adjustment obligations incurred in connection with asset
     sales permitted by Section 6.06(c);

          (xii)  Indebtedness incurred to refinance any Indebtedness permitted
     under clauses (ix) and (x) of this Section 6.01; provided that (a) such
                                                      --------
     refinancing Indebtedness (i) shall not have a greater outstanding principal
     amount, an earlier maturity date or a decreased weighted average life than
     the Indebtedness refinanced and (ii) shall be subordinated to the
     Indebtedness created under the Loan Documents to at least the extent of,
     and shall otherwise be issued on terms no less favorable in any material
     respect to the Lenders than, the Indebtedness refinanced and (b) the
     proceeds of such Indebtedness shall be used solely to repay the
     Indebtedness refinanced thereby and fees and expenses in connection
     therewith; and

          (xiii) other unsecured Indebtedness of the Borrower and the Restricted
     Subsidiaries (other than any Special Purpose Subsidiary); provided that the
                                                               --------
     aggregate principal amount of such Indebtedness shall not exceed $3,000,000
     at any time outstanding.

          (b)  The Borrower will not, and will not permit any Restricted
Subsidiary to, issue any preferred stock (other than preferred stock of the
Borrower issued pursuant to the terms of the Securities Purchase Agreement or in
connection with acquisitions permitted by Section 6.05 and Series E Preferred
Stock issued in connection with employee compensation plans) or be or become
liable in respect of any obligation (contingent or otherwise) to purchase,
redeem, retire, acquire or make any other payment in respect of any shares of
Capital Stock of the Borrower or any Subsidiary or any option, warrant or other
right to acquire any such shares of Capital Stock.  No preferred stock issued by
the Borrower or any Restricted Subsidiary shall be mandatorily redeemable or
subject to mandatory purchase by the Borrower or any Restricted Subsidiary, and
no payments (including of
<PAGE>

                                                                             111

dividends) may be made (it being understood that dividends may accrue) in
respect thereof under any circumstances prior to the date that is six months
after the Tranche B Maturity Date (other than those dividend payments permitted
pursuant to Section 6.08(a)(iv)).

          SECTION 6.02.  Liens.  The Borrower will not, and will not permit any
                         ------
Restricted Subsidiary to, create, incur, assume or permit to exist any Lien on
any property or asset now owned or hereafter acquired by it, or assign or sell
any income or revenues (including accounts receivable) or rights in respect of
any thereof, except:

          (i)   Liens created under the Loan Documents;

          (ii)  Permitted Encumbrances;

          (iii) any Lien on any property or asset of the Borrower or any
     Restricted Subsidiary (other than the License Subsidiary or the Property
     Subsidiary) existing on the date hereof and set forth in Schedule 6.02;

     provided that (A) such Lien shall not apply to any other property or asset
     --------
     of the Borrower or any Restricted Subsidiary and (B) such Lien shall secure
     only those obligations which it secures on the date hereof;

          (iv)  any Lien existing on any property or asset prior to the
     acquisition thereof by the Borrower or any Restricted Subsidiary or
     existing on any property or asset of any Person that becomes a Restricted
     Subsidiary after the date hereof prior to the time such Person becomes a
     Subsidiary; provided that (A) such Lien is not created in contemplation of
                 --------
     or in connection with such acquisition or such Person becoming a
     Subsidiary, as the case may be, (B) such Lien shall not apply to any other
     property or assets of the Borrower or any Restricted Subsidiary and (C)
     such Lien shall secure only those obligations which it secures on the date
     of such acquisition or the date such Person becomes a Subsidiary, as the
     case may be; and

          (v)   Liens on fixed or capital assets acquired, constructed or
     improved by the Borrower or any
<PAGE>

                                                                             112

     Restricted Subsidiary; provided that (A) such security interests secure
                            --------
     Indebtedness permitted by clause (vii) of Section 6.01(a), (B) such
     security interests and the Indebtedness secured thereby are incurred prior
     to or within 180 days after such acquisition or the completion of such
     construction or improvement, (C) the Indebtedness secured thereby does not
     exceed 100% of the cost of acquiring, constructing or improving such fixed
     or capital assets and (D) such security interests shall not apply to any
     other property or assets of the Borrower or any Restricted Subsidiary.

          SECTION 6.03.  Sale and Lease-Back Transactions.  The Borrower will
                         ---------------------------------
not, nor will it permit any Restricted Subsidiary to, enter into any
arrangement, directly or indirectly, with any Person whereby it shall sell or
transfer any property, real or personal, used or useful in its business, whether
now owned or hereafter acquired, and thereafter rent or lease such property or
other property which it intends to use for substantially the same purpose as the
property being sold or transferred, except for sales and lease-backs of towers
the Net Proceeds of which are used to prepay Loans pursuant to Section 2.09 (it
being understood that, in calculating Net Proceeds, lease and other related
payments arising in connection with any such sale and lease-back transaction
shall not be deducted from the proceeds received from the sale of any tower or
towers that are the subject of such sale and lease-back transaction).

          SECTION 6.04.  Fundamental Changes.  (a)  The Borrower will not, and
                         --------------------
will not permit any Restricted Subsidiary to, merge into or consolidate with any
other Person, or permit any other Person to merge into or consolidate with it,
or liquidate or dissolve, except that, if at the time thereof and immediately
after giving effect thereto no Default shall have occurred and be continuing (i)
any Restricted Subsidiary (other than any Special Purpose Subsidiary) may merge
into the Borrower in a transaction in which the Borrower is the surviving
corporation, (ii) any Restricted Subsidiary (other than any Special Purpose
Subsidiary) may merge into any Restricted Subsidiary (other than any Special
Purpose Subsidiary) or another entity acquired pursuant to an acquisition
permitted hereunder in a transaction in which the surviving entity is a Wholly
Owned Restricted Subsidiary, (iii) any Restricted Subsidiary (other than any
Special Purpose Subsidiary) may
<PAGE>

                                                                             113

liquidate or dissolve if the Borrower determines in good faith that such
liquidation or dissolution is in the best interests of the Borrower and is not
materially disadvantageous to the Lenders, (iv) the THC San Diego Merger may be
consummated and (v) the Borrower or any Restricted Subsidiary (other than any
License Subsidiary or Property Subsidiary) may effect any acquisition permitted
by Section 6.05 by means of a stock-for-stock merger in which the Borrower or a
Wholly owned Restricted Subsidiary is the surviving corporation.

          (b)  The Borrower will not, and will not permit any of its Restricted
Subsidiaries to, engage in any business other than businesses of the type
conducted or contemplated to be conducted by the Borrower and its Restricted
Subsidiaries on the date of execution of this Agreement and Related Businesses.

          SECTION 6.05.  Investments, Loans, Advances, Guarantees and
                         --------------------------------------------
Acquisitions.  The Borrower will not, and will not permit any of its Restricted
- -------------
Subsidiaries to, purchase, hold or acquire (including pursuant to any merger
with any Person that was not a Wholly Owned Subsidiary prior to such merger) any
capital stock, evidences of indebtedness or other securities (including any
option, warrant or other right to acquire any of the foregoing) of, make or
permit to exist any loans or advances to, Guarantee any obligations of, or make
or permit to exist any investment or any other interest in, any other Person, or
purchase or otherwise acquire (in one transaction or a series of transactions)
any assets of any other Person constituting a business unit, except:

          (a) Permitted Investments;

          (b) investments existing on the date hereof and  set forth on Schedule
     6.05(b), to the extent such investments would not be permitted under any
     other clause of this Section;

          (c) investments by the Borrower and its Restricted Subsidiaries (other
     than any Special Purpose Subsidiary) in the Capital Stock of the Restricted
     Subsidiaries; provided that any such shares of capital stock held by a Loan
                   --------
     Party shall be pledged pursuant to the Pledge Agreement (subject to the
     limitations applicable to common stock of a Foreign Subsidiary
<PAGE>

                                                                             114

     referred to in Section 5.12) and no investments may be made in Subsidiaries
     that are not Loan Parties;

          (d) loans or advances made by the Borrower to any Restricted
     Subsidiary and made by any Restricted Subsidiary to the Borrower or any
     other Restricted Subsidiary; provided that any such loans and advances made
                                  --------
     by a Loan Party shall be evidenced by a promissory note pledged pursuant to
     the Pledge Agreement and no loans or advances may be made to Subsidiaries
     that are not Loan Parties;

          (e) Guarantees constituting Indebtedness permitted by Section 6.01;
     provided that a Subsidiary shall not Guarantee the Subordinated Debt unless
     --------
     (A) such Subsidiary also has Guaranteed the Obligations pursuant to the
     Guarantee Agreement, (B) such Guarantee of the Subordinated Debt is
     subordinated to such Guarantee of the Obligations on terms no less
     favorable to the Lenders than the subordination provisions of the
     Subordinated Debt and (C) such Guarantee of the Subordinated Debt provides
     for the release and termination thereof, without action by any party, upon
     any release and termination of such Guarantee of the Obligations;

          (f) investments received in connection with the bankruptcy or
     reorganization of, or settlement of delinquent accounts and disputes with,
     customers and suppliers, in each case in the ordinary course of business;

          (g) the San Juan Acquisition;

          (h) the THC San Diego Merger;

          (i) the Mercury Acquisition;

          (j) the Wireless 2000 Acquisition;

          (k) the LMDS Merger;

          (l) Other acquisitions in which the only consideration paid by the
     Borrower or any Restricted Subsidiary consists of Capital Stock of the
     Borrower;
<PAGE>

                                                                             115

          (m) Loans and advances to employees in an amount not to exceed
     $250,000 at any time outstanding; and

          (n) Investments by the Borrower in Unrestricted Subsidiaries funded
     with the proceeds of capital contributed to the Borrower specifically for
     such purpose and not required to be contributed to the Borrower pursuant to
     the Securities Purchase Agreement in an aggregate amount for all such
     Unrestricted Subsidiaries not to exceed $50,000,000.

          SECTION 6.06.  Asset Sales.  The Borrower will not, and will not
                         ------------
permit any Restricted Subsidiary to, sell, transfer, lease or otherwise dispose
of any asset, including any Capital Stock, nor will the Borrower permit any of
its Restricted Subsidiaries to issue any additional shares of Capital Stock or
other ownership interest in such Restricted Subsidiary, except in the case of
the Borrower and its Restricted Subsidiaries:

          (a) sales of inventory, used or surplus equipment and Permitted
     Investments in the ordinary course of business;

          (b) sales, transfers and dispositions to the Borrower or a Restricted
     Subsidiary; provided that any such sales, transfers or dispositions
                 --------
     involving a Restricted Subsidiary that is not a Loan Party shall be made in
     compliance with Section 6.09;

          (c) sales, transfers and dispositions of assets (other than capital
     stock of a Restricted Subsidiary) that are not permitted by any other
     clause of this Section; provided that the aggregate fair market value of
                             --------
     all assets sold, transferred or otherwise disposed of in reliance upon this
     clause (c) shall not exceed $1,000,000 during any fiscal year of the
     Borrower;

          (d) so long as after giving effect thereto the Borrower is in Pro
     Forma Compliance, any License Swap and any Swap of License Related Assets
     in connection therewith, provided that, (i) the aggregate number of Pops in
                              --------
     the BTAs and MTAs covered by the License or Licenses that are the subject
     of all License Swaps (other than the San Diego Swap) in each fiscal year
     may not exceed 10% of the Initial Pops and (ii) the fair market value of
     the License Related Assets that are the
<PAGE>

                                                                             116

     subject of Swaps of License Related Assets in each fiscal year may not
     exceed $2,000,000;

provided that all sales, transfers, leases and other dispositions permitted
- --------
hereby shall be made for fair value and, except in the case of clause (d),
solely for cash consideration.

          SECTION 6.07.  Hedging Agreements.  The Borrower will not, and will
                         -------------------
not permit any Restricted Subsidiary to, enter into any Hedging Agreement, other
than (a) Hedging Agreements required by Section 5.14 and (b) Hedging Agreements
entered into in the ordinary course of business to hedge or mitigate risks to
which the Borrower or any Restricted Subsidiary is exposed in the conduct of its
business or the management of its liabilities.

          SECTION 6.08.  Restricted Payments; Certain Payments of Indebtedness.
                         ------------------------------------------------------
(a)  The Borrower will not, nor will it permit any Restricted Subsidiary to,
declare or make, or agree to pay or make, directly or indirectly, any Restricted
Payment, except (i) the Borrower may declare and pay dividends with respect to
its capital stock payable solely in additional shares of Common Stock or
warrants to purchase its Common Stock, (ii)  Restricted Subsidiaries may declare
and pay dividends ratably with respect to their capital stock; provided that no
                                                               --------
distribution referred to in this clause (ii) shall be permitted to be made by
any Special Purpose Subsidiary if any Default or Event of Default shall have
occurred and be continuing or would result therefrom, (iii) the Borrower may
make Restricted Payments, not exceeding $1,000,000 during any fiscal year,
pursuant to and in accordance with stock option plans or other benefit plans for
management or employees of the Borrower and its Subsidiaries and (iv) following
the end of the fiscal year of the Borrower ending December 31, 2001, and
following the end of each subsequent fiscal year, the Borrower may pay cash
dividends with respect to the Series A Preferred Stock in an amount not in
excess of 50% of Excess Cash Flow for such fiscal year; provided that the
                                                        --------
prepayments required by Section 2.09(c) have previously been made.

          (b)  The Borrower will not, and will not permit any Restricted
Subsidiary to, make or agree to pay or make, directly or indirectly, any payment
or other distribution (whether in cash securities or other property) of or in
<PAGE>

                                                                             117

respect of principal of or interest on any Indebtedness, or any payment or other
distribution (whether in cash, securities or other property), including any
sinking fund or similar deposit, on account of the purchase, redemption,
retirement, acquisition, cancelation or termination of any Indebtedness, except:

          (i)    payment of Indebtedness created under the Loan Documents;

          (ii)   payment of regularly scheduled interest and principal payments
     as and when due in respect of any Indebtedness permitted by Section
     6.01(a), other than (x) payments in respect of the Subordinated Debt
     prohibited by the subordination provisions thereof and (y) payments in
     respect of the Series A Bonds or the Series B Bonds prohibited by the
     proviso in 6.01(a)(v);

          (iii)  refinancings of Indebtedness to the extent permitted by Section
     6.01;

          (iv)   payment of secured Indebtedness permitted by Section 6.01(a)
     that becomes due as a result of the voluntary sale or transfer of the
     property or assets securing such Indebtedness;

          (v)    mandatory prepayments of the Series A Bonds as a result of the
     issuance of equity securities by the Borrower with up to 50% of the net
     cash proceeds of any such issuance; provided, that, no prepayment of the
                                         --------  ----
     Series A Bonds will be made in connection with (i) sales of stock necessary
     to provide the initial $128,000,000 of cash equity capitalization of the
     Borrower or, if the Supplemental Closing (as defined in the Securities
     Purchase Agreement) occurs, the initial $133,000,000 of cash equity
     capitalization of the Borrower, (ii) the issuance by the Borrower of
     approximately $39,900,000 of stock to AW and approximately $39,700,000 of
     stock to other Equity Participants in connection with the San Juan
     Acquisition and (iii) the issuance of the Borrower of approximately $4.0
     million of stock to stockholders of THC San Diego and approximately
     $41,000,000 of stock to certain Equity Participants in connection with the
     THC San Diego Merger); and
<PAGE>

                                                                             118

          (vi) mandatory prepayments of the Series B Bonds in accordance with
     the terms of Section 10.5 of the Lucent Note Purchase Agreement.

          SECTION 6.09.  Transactions with Affiliates.  The Borrower will not,
                         -----------------------------
and will not permit any Restricted Subsidiary to, sell, lease or otherwise
transfer any property or assets to, or purchase, lease or otherwise acquire any
property or assets from, or otherwise engage in any other transactions with, any
of its Affiliates, except (a) transactions in the ordinary course of business
that are at prices and on terms and conditions (taken as a whole) not less
favorable to the Borrower or such Restricted Subsidiary than could be obtained
on an arm's-length basis from unrelated third parties, (b) transactions between
or among the Borrower and the Restricted Subsidiary Loan Parties not involving
any other Affiliate, (c) any Restricted Payment permitted by Section 6.08, (d)
transactions consummated pursuant to the PCS Documents and (e) payments by the
Borrower to Telecorp Management Corp. pursuant to the Management Agreement.

          SECTION 6.10.  Restrictive Agreements.  The Borrower will not, nor
                         -----------------------
will it permit any Restricted Subsidiary to, directly or indirectly, enter into,
incur or permit to exist any agreement or other arrangement that prohibits,
restricts or imposes any condition upon (a) the ability of the Borrower or any
Restricted Subsidiary to create, incur or permit to exist any Lien upon any of
its property or assets or (b) the ability of any Restricted Subsidiary to pay
dividends or other distributions with respect to any shares of its capital stock
or to make or repay loans or advances to the Borrower or any other Restricted
Subsidiary or to Guarantee Indebtedness of the Borrower or any other Restricted
Subsidiary; provided that (i) the foregoing shall not apply to restrictions and
            --------
conditions imposed by law or by any Loan Document or Subordinated Debt Document,
(ii) the foregoing shall not apply to restrictions and conditions existing on
the date hereof identified on Schedule 6.10 (but shall apply to any extension or
renewal of, or any amendment or modification expanding the scope of, any such
restriction or condition), (iii) the foregoing shall not apply to customary
restrictions and conditions contained in agreements relating to the sale of a
Subsidiary pending such sale, provided such restrictions and conditions apply
only to the Subsidiary that is to be sold and such sale is permitted hereunder,
<PAGE>

                                                                             119

(iv) clause (a) of the foregoing shall not apply to restrictions or conditions
imposed by any agreement relating to secured Indebtedness permitted by this
Agreement if such restrictions or conditions apply only to the property or
assets securing such Indebtedness and (v) clause (a) of the foregoing shall not
apply to customary provisions in leases restricting the assignment thereof.

          SECTION 6.11.  Amendment of Material Documents.  The Borrower will
                         --------------------------------
not, and will not permit any Restricted Subsidiary to, amend, modify or waive
any of its rights under (a) any agreement relating to Material Indebtedness, (b)
its certificate of incorporation, by-laws or other organizational documents, (c)
the Special Purpose Subsidiary Funding Agreements, (d) the PCS Documents or (e)
the Master Lease, in the case of clauses (a), (b), (c) and (e) above, in a
manner adverse to the interests of the Lenders and, in the case of clause (d)
above, in a manner that could be adverse in a material respect to the interests
of the Lenders.

          SECTION 6.12.  Financial Covenants.  (a)  Senior Debt to Total
                         --------------------       --------------------
Capital.  The Borrower will not permit the ratio of Senior Debt to Total Capital
- --------
on any day on which a Borrowing occurs and the last day of each fiscal quarter
to exceed .50 to 1.00; provided, however, that if (i) all Unfunded Commitments
                       --------  -------
(as defined in the Securities Purchase Agreement) have been contributed in full
in cash to the Borrower and (ii) Covered Pops meet or exceed 60% of the
aggregate number of Pops within the Licensed Territory (as defined in the
Network License Agreement) then the ratio of Senior Debt to Total Capital may
exceed .50 to 1.00 but shall not exceed .55 to 1.00.

          (b)  Total Debt to Total Capital.  The Borrower will not permit the
               ----------------------------
ratio of Total Debt to Total Capital on any day on which a Borrowing occurs and
the last day of each fiscal quarter to exceed .70 to 1.00.
<PAGE>

                                                                             120

          (c)  Covered Pops.  The Borrower will not permit Covered Pops as a
               -------------
percentage of the total number of Pops in the BTAs and MTAs listed on Schedule
3.14 on or after any date set forth below to be less than the percentage set
forth opposite such date:

<TABLE>
<CAPTION>
                                             Minimum Covered
     Date                                          Pops
     ----                                    ---------------
     <S>                                     <C>
     June 30, 1999                                 35%
     December 31, 1999                             40%
     June 30, 2000                                 50%
     June 30, 2001                                 60%
     June 30, 2002                                 65%
     June 30, 2003 and thereafter                  70%
</TABLE>

          (d)  Subscribers.  The Borrower will not permit the number of
               ------------
Subscribers on or after any date set forth below to be less than the number of
Subscribers set forth opposite such date:

<TABLE>
<CAPTION>
                                               Minimum
     Date                                    Subscribers
     ----                                    -----------
     <S>                                     <C>
     December 31, 1999                          45,000
     June 30, 2000                              82,000
     December 31, 2000                         155,000
     June 30, 2001                             190,000
     December 31, 2001                         265,000
     June 30, 2002                             305,000
     December 31, 2002 and thereafter          400,000
</TABLE>
<PAGE>

                                                                             121

          (e)  Aggregate Service Revenue.  The Borrower will not permit
               --------------------------
Aggregate Service Revenue for any period of four consecutive fiscal quarters
ending on or after any date set forth below to be less than Aggregate Service
Revenue set forth opposite such date:

<TABLE>
<CAPTION>
                                             Minimum Aggregate
     Date                                     Service Revenue
     ----                                    -----------------
     <S>                                     <C>
     December 31, 1999                         $ 12,500,000
     June 30, 2000                             $ 35,000,000
     December 31, 2000                         $ 65,000,000
     June 30, 2001                             $ 95,000,000
     December 31, 2001                         $135,000,000
     June 30, 2002                             $180,000,000
     December 31, 2002 and thereafter          $240,000,000
</TABLE>

          (f)  Total Debt to Annualized EBITDA.  The Borrower will not permit
               --------------------------------
the ratio of (i) Total Debt outstanding on any day from and including (A) the
last day of any fiscal quarter set forth below through (B) the day immediately
preceding the last day of the immediately following fiscal quarter to (ii)
Annualized EBITDA for the period ending on the date referred to in clause (i)(A)
above to exceed the ratio set forth opposite such date:

<TABLE>
<CAPTION>
          Fiscal Quarter
            Ending On                             Ratio
          --------------                          -----
          <S>                                   <C>
          September 30, 2002                    25.0 to 1.00
          December 31, 2002                     20.0 to 1.00
          March 31, 2003                        16.0 to 1.00
          June 30, 2003                         13.0 to 1.00
          September 30, 2003                    10.0 to 1.00
          December 31, 2003                      8.5 to 1.00
          March 31, 2004                         7.5 to 1.00
          June 30, 2004                          6.5 to 1.00
          September 30, 2004                     5.5 to 1.00
          December 31, 2004 and thereafter       4.5 to 1.00
</TABLE>
<PAGE>

                                                                             122

          (g)  Total Debt to Annualized Adjusted EBITDA.  The Borrower will not
               -----------------------------------------
permit the ratio of (i) Total Debt outstanding on any day from and including (A)
the last day of any fiscal quarter set forth below through (B) the day
immediately preceding the last day of the immediately following fiscal quarter
to (ii) Annualized Adjusted EBITDA for the period ending on the date referred to
in clause (i)(A) above to exceed the ratio set forth opposite such date:

<TABLE>
<CAPTION>
          Fiscal Quarter
             Ending On                                  Ratio
          --------------                                -----
          <S>                                           <C>
          December 31, 2001                             22.0 to 1.00
          March 31, 2002                                16.0 to 1.00
          June 30, 2002                                 14.0 to 1.00
          September 30, 2002                            12.0 to 1.00
          December 31, 2002                             10.0 to 1.00
          March 31, 2003                                 8.0 to 1.00
          June 30, 2003                                  7.0 to 1.00
          September 31, 2003 and thereafter              6.0 to 1.00
</TABLE>
<PAGE>

                                                                             123

          (h)  Senior Debt to Annualized EBITDA.  The Borrower will not permit
               ---------------------------------
the ratio of (i) Senior Debt outstanding on any day from and including (A) the
last day of any fiscal quarter set forth below through (B) the day immediately
preceding the last day of the immediately following fiscal quarter to (ii)
Annualized EBITDA for the period ending on the date referred to in clause (i)(A)
above to exceed the ratio set forth opposite such date:

<TABLE>
<CAPTION>
          Fiscal Quarter
            Ending On                                  Ratio
          --------------                               -----
          <S>                                    <C>
          September 30, 2002                     18.0 to 1.00
          December 31, 2002                      13.0 to 1.00
          March 31, 2003                         10.0 to 1.00
          June 30, 2003                           8.5 to 1.00
          September 30, 2003                      6.5 to 1.00
          December 31, 2003                       5.5 to 1.00
          March 31, 2004                          4.5 to 1.00
          June 30, 2004                           4.0 to 1.00
          September 30, 2004 and thereafter       3.0 to 1.00
</TABLE>
<PAGE>

                                                                             124

          (i)  Senior Debt to Annualized Adjusted EBITDA.  The Borrower will not
               ------------------------------------------
permit the ratio of (i) Senior Debt outstanding on any day from and including
(A) the last day of any fiscal quarter set forth below through (B) the day
immediately preceding the last day of the immediately following fiscal quarter
to (ii) Annualized Adjusted EBITDA for the period ending on the date referred to
in clause (i)(A) above to exceed the ratio set forth opposite such date:

<TABLE>
<CAPTION>
          Fiscal Quarter
             Ending On                                         Ratio
          --------------                                       -----
          <S>                                               <C>
          September 30, 2001                                21.0 to 1.00
          December 31, 2001                                 17.0 to 1.00
          March 31, 2002                                    12.0 to 1.00
          June 30, 2002                                     10.0 to 1.00
          September 30, 2002                                 8.0 to 1.00
          December 31, 2002                                  6.0 to 1.00
          March 31, 2003                                     5.0 to 1.00
          June 30, 2003 and thereafter                       4.0 to 1.00
</TABLE>

          (j)  Interest Coverage Ratio.  The Borrower will not permit the ratio
               ------------------------
of (i) Consolidated EBITDA for any period of four consecutive fiscal quarters
ending on any date or during any "Test Period" set forth below to (ii) Cash
Interest Expense for such period to be less than the ratio set forth opposite
such date or Test Period:

<TABLE>
<CAPTION>
          Date or Test Period                            Ratio
          -------------------                            -----
<S>                                                    <C>
December 31, 2002                                      1.00 to 1.00
March 31, 2003 - June 30, 2003                         1.15 to 1.00
September 30, 2003 - June 30, 2004                     1.25 to 1.00
September 30, 2004 - December 31, 2004                 1.50 to 1.00
March 31, 2005 - June 30, 2005                         2.00 to 1.00
September 30, 2005 and thereafter                      2.25 to 1.00
</TABLE>

          (k)  Fixed Charges Ratio.  The Borrower will not permit the ratio of
               --------------------
(i) Consolidated EBITDA for any period of four consecutive fiscal quarters
ending during any "Test Period" set forth below to Fixed Charges for such period
to be less than the ratio set forth opposite such Test Period:
<PAGE>

                                                                             125

<TABLE>
<CAPTION>
          Test Period                             Ratio
          -----------                             -----
<S>                                          <C>
March 31, 2004 - December 31, 2004           1.00 to 1.00
March 31, 2005 and thereafter                1.10 to 1.00
</TABLE>

          (l)  Capital Expenditures.  The Borrower will not permit Capital
               ---------------------
Expenditures of the Borrower and its Restricted Subsidiaries for any period set
forth below to exceed the sum set forth opposite such period:

<TABLE>
<CAPTION>
               Period                             Amount
               ------                             ------
<S>                                          <C>
Date of formation through                    $320,000,000
December 31, 1998
January 1, 1999 - December 31, 1999          $146,500,000
January 1, 2000 - December 31, 2000          $ 65,000,000
January 1, 2001 - December 31, 2001          $ 39,000,000
January 1, 2002 - December 31, 2002          $ 37,500,000
January 1, 2003 and thereafter               $ 35,000,000
</TABLE>

; provided that any permitted amount which is not expended in any of the periods
  --------
specified above may be carried over for expenditure in the immediately
subsequent period.

          SECTION 6.13.  Liabilities of Special Purpose Subsidiaries.  The
                         --------------------------------------------
Borrower will not:

          (a) permit any License Subsidiary to incur, assume or permit to exist
     any liabilities (other than under the Guarantee Agreement and the Security
     Agreement, the Communications Act, FCC Debt and taxes and other liabilities
     incurred in the ordinary course in order to maintain its existence) or to
     engage in any business or activities other than the holding of Licenses;

          (b) permit the Real Property Subsidiary to incur, assume or permit to
     exist any liabilities (other than (i) under the Guarantee Agreement and the
     Security Agreement, (ii) other liabilities incurred in the ordinary course
     of business which are incident to being the lessee of real property or the
     purchaser, owner or lessee of equipment and (iii) taxes and other
     liabilities in the ordinary course in order to maintain its existence) or
     to engage in any business or activities
<PAGE>

                                                                             126

     other than the owning or leasing, as lessee, of Real Property Assets and
     the leasing, as lessor, or, as the case may be, subleasing, as sublessor,
     thereof to the Borrower, and the owning of Real Property-Related Equipment
     constituting fixtures thereto and the leasing thereof to the Borrower; or

          (c) permit the Equipment Subsidiary to incur, assume or permit to
     exist any liabilities (other than (i) under the Guarantee Agreement and the
     Security Agreement, (ii) other liabilities incurred in the ordinary course
     of business which are incident to being the lessor of equipment or the
     purchaser or owner of equipment and (iii) taxes and other liabilities
     incurred in the ordinary course in order to maintain its existence) or to
     engage in any business or activities other than the owning of equipment and
     the leasing thereof, as lessor, to the Borrower or another Restricted
     Subsidiary.


                                  ARTICLE VII

                               Events of Default
                               -----------------

          If any of the following events ("Events of Default") shall occur:
                                           -----------------

          (a) the Borrower shall fail to pay any principal of any Loan or the
     reimbursement with respect to any L/C Disbursement when and as the same
     shall become due and payable, whether at the due date thereof or at a date
     fixed for prepayment thereof or otherwise;

          (b) the Borrower shall fail to pay any interest on any Loan or any fee
     or L/C Disbursement or any other amount (other than an amount referred to
     in clause (a) of this Article) payable under this Agreement or any other
     Loan Document, when and as the same shall become due and payable, and such
     failure shall continue unremedied for a period of five days;

          (c) any representation or warranty made or deemed made by or on behalf
     of any Loan Party in or in connection with any Loan Document or any
     amendment or modification thereof or waiver thereunder, or in any report,
     certificate, financial statement or other
<PAGE>

                                                                             127

     document furnished pursuant to or in connection with any Loan Document or
     any amendment or modification thereof or waiver thereunder, shall prove to
     have been incorrect in any material respect when made or deemed made;

          (d) the Borrower shall fail to observe or perform any covenant,
     condition or agreement contained in Section 5.02, 5.04 (with respect to the
     existence of the Borrower) or 5.11 or in Article VI;

          (e) any Loan Party shall fail to observe or perform any covenant,
     condition or agreement contained in any Loan Document (other than those
     specified in clause (a), (b) or (d) of this Article), and such failure
     shall continue unremedied for a period of 30 days after notice thereof from
     the Administrative Agent to the Borrower (which notice will be given at the
     request of any Lender);

          (f) any Loan Party shall fail to make any payment (whether of
     principal or interest or otherwise and regardless of amount) in respect of
     any Material Indebtedness, when and as the same shall become due and
     payable;

          (g) any event or condition occurs that results in any Material
     Indebtedness becoming due prior to its scheduled maturity or that enables
     or permits (with or without the giving of notice, the lapse of time or
     both) the holder or holders of any Material Indebtedness or any trustee or
     agent on its or their behalf to cause any Material Indebtedness to become
     due, or to require the prepayment, repurchase, redemption or defeasance
     thereof, prior to its scheduled maturity; provided that this clause (g)
                                               --------
     shall not apply to secured Indebtedness that becomes due as a result of the
     voluntary sale or transfer of the property or assets securing such
     Indebtedness;

          (h) an involuntary proceeding shall be commenced or an involuntary
     petition shall be filed seeking (i) liquidation, reorganization or other
     relief in respect of any Loan Party or its debts, or of a substantial part
     of its assets, under any Federal, state or foreign bankruptcy, insolvency,
     receivership or similar law now or hereafter in effect or (ii) the
<PAGE>

                                                                             128

     appointment of a receiver, trustee, custodian, sequestrator, conservator or
     similar official for the Borrower or any Subsidiary or for a substantial
     part of its assets, and, in any such case, such proceeding or petition
     shall continue undismissed for 60 days or an order or decree approving or
     ordering any of the foregoing shall be entered;

          (i) any Loan Party shall (i) voluntarily commence any proceeding or
     file any petition seeking liquidation, reorganization or other relief under
     any Federal, state or foreign bankruptcy, insolvency, receivership or
     similar law now or hereafter in effect, (ii) consent to the institution of,
     or fail to contest in a timely and appropriate manner, any proceeding or
     petition described in clause (h) of this Article, (iii) apply for or
     consent to the appointment of a receiver, trustee, custodian, sequestrator,
     conservator or similar official for the Borrower or any Subsidiary or for a
     substantial part of its assets, (iv) file an answer admitting the material
     allegations of a petition filed against it in any such proceeding, (v) make
     a general assignment for the benefit of creditors or (vi) take any action
     for the purpose of effecting any of the foregoing;

          (j) any Loan Party shall become unable, admit in writing its inability
     or fail generally to pay its debts as they become due;

          (k) one or more judgments for the payment of money in an aggregate
     amount in excess of $5,000,000 (to the extent not covered by insurance)
     shall be rendered against the Borrower, any Loan Party or any combination
     thereof and the same shall remain undischarged for a period of 30
     consecutive days during which execution shall not be effectively stayed, or
     any action shall be legally taken by a judgment creditor to attach or levy
     upon any assets of the Borrower or any Subsidiary to enforce any such
     judgment;

          (l) an ERISA Event shall have occurred that, in the opinion of the
     Required Lenders, when taken together with all other ERISA Events that have
     occurred, could reasonably be expected to result in a Material Adverse
     Effect;
<PAGE>

                                                                             129

          (m) any Lien purported to be created under any Security Document shall
     cease to be, or shall be asserted by any Loan Party not to be, a valid and
     perfected Lien on any Collateral, with the priority required by the
     applicable Security Document, except (i) as a result of the sale or other
     disposition of the applicable Collateral in a transaction permitted under
     the Loan Documents, (ii) as a result of the Administrative Agent's failure
     to maintain possession of any stock certificates, promissory notes or other
     instruments delivered to it under the Pledge Agreement or the
     Administrative Agent's failure to file necessary continuation financing
     statements or make required filings with the Patent and Trademark Office of
     the United States of America after delivery to the Administrative Agent by
     the Borrower of executed copies of such financing statements and filings or
     (iii) to the extent such loss is covered by a title insurance policy in
     favor of the Administrative Agent in which the relevant insurer has not
     denied liability thereunder;

          (n) any of the Security Documents shall cease to be or shall be
     asserted by any Loan Party not to be in full force and effect;

          (o) the Guarantee Agreement shall cease to be or shall be asserted by
     any Loan Party not to be in full force and effect;

          (p) a Change in Control shall occur;

          (q) the failure of the Borrower to make any payments required to be
     made to the FCC or any other Governmental Authority with respect to any
     License held by the Borrower or any Subsidiary or any Indebtedness or other
     payment obligations relating thereto as and when due which failure could
     reasonably be expected to lead to the loss, termination, revocation, non-
     renewal or material impairment of any License or otherwise result in a
     Material Adverse Effect;

          (r) any termination (prior to the expiration of its term), revocation
     or non-renewal by the FCC of one or more Licenses of the Borrower or its
     Subsidiaries;

          (s) the Borrower's right to use any "AT&T" trademark (other than any
     trademark which AT&T itself no
<PAGE>

                                                                             130

     longer uses) pursuant to the Network License Agreement shall terminate (it
     being understood that, on or after the date which is five years from the
     Effective Date, neither the non-renewal of the Network License Agreement by
     AW nor the termination of the Network License Agreement by AW as a result
     of a Disqualifying Transaction (as defined in the Stockholders Agreement)
     shall constitute an Event of Default hereunder);

          (t) the loss by any Loan Party of any rights to the benefit of, or the
     occurrence of any default or the termination of any rights under, any
     application, marketing or other material agreements, which loss, occurrence
     or termination could reasonably be expected to have a Material Adverse
     Effect;

          (u) the failure of any party to the Securities Purchase Agreement or
     the Stockholders Agreement to comply with any funding or contribution
     obligation under such Agreement and such failure shall continue unremedied
     for a period of 30 days;

          (v) the failure by the Borrower to satisfy the FCC's Very Small
     Business requirements or any Requirements of Law the Borrower is required
     to comply with in order to hold an F-Block License, including any such
     failure which leads to the imposition of a penalty, fine or similar
     enforcement measure by the FCC;

then, and in every such event (other than an event with respect to the Borrower
described in clause (h) or (i) of this Article), and at any time thereafter
during the continuance of such event, the Administrative Agent may, and at the
request of the Required Lenders shall, by notice to the Borrower, take either or
both of the following actions, at the same or different times:  (i) terminate
the Commitments, and thereupon the Commitments shall terminate immediately, and
(ii) declare the Loans then outstanding to be due and payable in whole (or in
part, in which case any principal not so declared to be due and payable may
thereafter be declared to be due and payable), and thereupon the principal of
the Loans so declared to be due and payable, together with accrued interest
thereon and all fees and other obligations of the Borrower accrued hereunder,
shall become due and payable immediately, without presentment, demand, protest
or other notice of any kind,
<PAGE>

                                                                             131

all of which are hereby waived by the Borrower; and in case of any event with
respect to the Borrower described in clause (h) or (i) of this Article, the
Commitments shall automatically terminate and the principal of the Loans then
outstanding, together with accrued interest thereon and all fees and other
obligations of the Borrower accrued hereunder, shall automatically become due
and payable, without presentment, demand, protest or other notice of any kind,
all of which are hereby waived by the Borrower.


                                 ARTICLE VIII

                           The Administrative Agent
                           ------------------------

          Each of the Lenders and the Issuing Bank hereby irrevocably appoints
the Administrative Agent as its agent and authorizes the Administrative Agent to
take such actions on its behalf and to exercise such powers as are delegated to
the Administrative Agent by the terms of the Loan Documents, together with such
actions and powers as are reasonably incidental thereto.

          The bank serving as the Administrative Agent hereunder shall have the
same rights and powers in its capacity as a Lender as any other Lender and may
exercise the same as though it were not the Administrative Agent, and such bank
and its Affiliates may accept deposits from, lend money to and generally engage
in any kind of business with the Borrower or any Subsidiary or other Affiliate
thereof as if it were not the Administrative Agent hereunder.

          The Administrative Agent shall not have any duties or obligations
except those expressly set forth in the Loan Documents.  Without limiting the
generality of the foregoing, (a) the Administrative Agent shall not be subject
to any fiduciary or other implied duties, regardless of whether a Default has
occurred and is continuing, (b) the Administrative Agent shall not have any duty
to take any discretionary action or exercise any discretionary powers, except
discretionary rights and powers expressly contemplated by the Loan Documents
that the Administrative Agent is required to exercise in writing by the Required
Lenders (or such other number or percentage of the Lenders as shall be necessary
under the circumstances as provided in Section 9.02), and (c) except as
expressly set forth in the Loan Documents, the Administrative Agent shall not
have any
<PAGE>

                                                                             132

duty to disclose, and shall not be liable for the failure to disclose, any
information relating to the Borrower or any of its Subsidiaries that is
communicated to or obtained by the bank serving as Administrative Agent or any
of its Affiliates in any capacity. The Administrative Agent shall not be liable
for any action taken or not taken by it with the consent or at the request of
the Required Lenders (or such other number or percentage of the Lenders as shall
be necessary under the circumstances as provided in Section 9.02) or in the
absence of its own gross negligence or wilful misconduct. The Administrative
Agent shall be deemed not to have knowledge of any Default unless and until
written notice thereof is given to the Administrative Agent by the Borrower or a
Lender, and the Administrative Agent shall not be responsible for or have any
duty to ascertain or inquire into (i) any statement, warranty or representation
made in or in connection with any Loan Document, (ii) the contents of any
certificate, report or other document delivered thereunder or in connection
therewith, (iii) the performance or observance of any of the covenants,
agreements or other terms or conditions set forth in any Loan Document, (iv) the
validity, enforceability, effectiveness or genuineness of any Loan Document or
any other agreement, instrument or document, or (v) the satisfaction of any
condition set forth in Article IV or elsewhere in any Loan Document, other than
to confirm receipt of items expressly required to be delivered to the
Administrative Agent.

          The Administrative Agent shall be entitled to rely upon, and shall not
incur any liability for relying upon, any notice, request, certificate, consent,
statement, instrument, document or other writing believed by it to be genuine
and to have been signed or sent by the proper Person.  The Administrative Agent
also may rely upon any statement made to it orally or by telephone and believed
by it to be made by the proper Person, and shall not incur any liability for
relying thereon.  The Administrative Agent may consult with legal counsel (who
may be counsel for the Borrower), independent accountants and other experts
selected by it, and shall not be liable for any action taken or not taken by it
in accordance with the advice of any such counsel, accountants or experts.

          The Administrative Agent may perform any and all its duties and
exercise its rights and powers by or through any one or more sub-agents
appointed by the Administrative
<PAGE>

                                                                             133

Agent. The Administrative Agent and any such sub-agent may perform any and all
its duties and exercise its rights and powers through their respective Related
Parties. The exculpatory provisions of the preceding paragraphs shall apply to
any such sub-agent and to the Related Parties of each Administrative Agent and
any such sub-agent, and shall apply to their respective activities in connection
with the syndication of the credit facilities provided for herein as well as
activities as Administrative Agent.

          Subject to the appointment and acceptance of a successor the
Administrative Agent as provided in this paragraph, the Administrative Agent may
resign at any time by notifying the Lenders, the Issuing Bank and the Borrower.
Upon any such resignation, the Required Lenders shall have the right, in
consultation with the Borrower (unless an Event of Default has occurred and is
continuing), to appoint a successor from among the other Lenders.  If no
successor shall have been so appointed by the Required Lenders and shall have
accepted such appointment within 30 days after the retiring Administrative Agent
gives notice of its resignation, then the retiring Administrative Agent may, on
behalf of the Lenders and the Issuing Bank, appoint a successor Administrative
Agent which shall be a bank with an office in New York, New York, or an
Affiliate of any such bank.  Upon the acceptance of its appointment as
Administrative Agent hereunder by a successor, such successor shall succeed to
and become vested with all the rights, powers, privileges and duties of the
retiring Administrative Agent, and the retiring Administrative Agent shall be
discharged from its duties and obligations hereunder.  The fees payable by the
Borrower to a successor Administrative Agent shall be the same as those payable
to its predecessor unless otherwise agreed between the Borrower and such
successor.  After the Administrative Agent's resignation hereunder, the
provisions of this Article and Section 9.03 shall continue in effect for the
benefit of such retiring Administrative Agent, its sub-agents and their
respective Related Parties in respect of any actions taken or omitted to be
taken by any of them while it was acting as Administrative Agent.

          Each Lender acknowledges that it has, independently and without
reliance upon the Administrative Agent or any other Lender and based on such
documents and information as it has deemed appropriate, made its own credit
analysis and decision to enter into this Agreement.  Each Lender also
<PAGE>

                                                                             134

acknowledges that it will, independently and without reliance upon the
Administrative Agent or any other Lender and based on such documents and
information as it shall from time to time deem appropriate, continue to make its
own decisions in taking or not taking action under or based upon this Agreement,
any other Loan Document or related agreement or any document furnished hereunder
or thereunder.


                                  ARTICLE IX

                                 Miscellaneous
                                 -------------

          SECTION 9.01.  Notices.  Except in the case of notices and other
                         --------
communications expressly permitted to be given by telephone, all notices and
other communications provided for herein shall be in writing and shall be
delivered by hand or overnight courier service, mailed by certified or
registered mail or sent by telecopy, as follows:

          (a) if to the Borrower, to it at 1101 17th Street, N.W., Washington,
     D.C. 20036, Attention of Thomas Sullivan and Robert Dowski (Telecopy No.
     (202) 833-5036); with a copy to McDermott, Will & Emery, 50 Rockefeller
     Plaza, New York, NY 10020, Attention of Jeffrey Dunetz (Telecopy No. (212)
     547-5444);

          (b) if to the Administrative Agent, to The Chase Manhattan Bank, Loan
     and Agency Services Group, One Chase Manhattan, 8th Floor, New York, New
     York 10081, Attention of Donna Montgomery (Telecopy No. (212) 552-5700),
     with a copy to The Chase Manhattan Bank, 270 Park Avenue, New York, New
     York 10017, Attention of William Rottino (Telecopy No. (212) 270-4584); and

          (c) if to any other Lender, to it at its address (or telecopy number)
     set forth in its Administrative Questionnaire.

Any party hereto may change its address or telecopy number for notices and other
communications hereunder by notice to the other parties hereto.  All notices and
other communications given to any party hereto in accordance with the
<PAGE>

                                                                             135

provisions of this Agreement shall be deemed to have been given on the date of
receipt.

          SECTION 9.02.  Waivers; Amendments.  (a)  No failure or delay by the
                         --------------------
Administrative Agent, the Issuing Bank or any Lender in exercising any right or
power hereunder or under any other Loan Document shall operate as a waiver
thereof, nor shall any single or partial exercise of any such right or power, or
any abandonment or discontinuance of steps to enforce such a right or power,
preclude any other or further exercise thereof or the exercise of any other
right or power.  The rights and remedies of the Administrative Agent, the
Issuing Bank and the Lenders hereunder and under the other Loan Documents are
cumulative and are not exclusive of any rights or remedies that they would
otherwise have.  No waiver of any provision of any Loan Document or consent to
any departure by any Loan Party therefrom shall in any event be effective unless
the same shall be permitted by paragraph (b) of this Section, and then such
waiver or consent shall be effective only in the specific instance and for the
purpose for which given.  Without limiting the generality of the foregoing, the
making of a Loan shall not be construed as a waiver of any Default, regardless
of whether the Administrative Agent or any Lender may have had notice or
knowledge of such Default at the time.

          (b)  Neither this Agreement nor any other Loan Document nor any
provision hereof or thereof may be waived, amended or modified except, in the
case of this Agreement, pursuant to an agreement or agreements in writing
entered into by the Borrower and the Required Lenders (or in the case of an
Expansion Facility Amendment, by the parties required to enter into such
amendment by Section 2.18 hereof) or, in the case of any other Loan Document,
pursuant to an agreement or agreements in writing entered into by the
Administrative Agent and the Loan Party or Loan Parties that are parties
thereto, in each case with the consent of the Required Lenders; provided that no
                                                                --------
such agreement shall (i) increase  the Commitment of any Lender without the
written consent of such Lender or increase the aggregate Commitments (other than
pursuant to Section 2.18) without the consent of each Lender, (ii) reduce the
principal amount of any Loan or L/C Disbursement or reduce the rate of interest
thereon, or reduce any fees payable hereunder, without the written consent of
each Lender affected thereby, (iii) postpone the scheduled date of payment of
the
<PAGE>

                                                                             136

principal amount of any Loan or L/C Disbursement, or any interest thereon, or
any fees payable hereunder, or reduce the amount of, waive or excuse any such
payment, or postpone the scheduled date or amount of any reduction or expiration
of any Commitment, without the written consent of each Lender affected thereby,
(iv) change Section 2.16(b) or (c) in a manner that would alter the pro rata
sharing of payments required thereby, without the written consent of each
Lender, (v) change any of the provisions of this Section or the definition of
"Required Lenders" or any other provision of any Loan Document specifying the
number or percentage of Lenders (or Lenders of any Class) required to waive,
amend or modify any rights thereunder or make any determination or grant any
consent thereunder, without the written consent of each Lender (or each Lender
of such Class, as the case may be), (vi) release any Subsidiary Loan Party from
its Guarantee under the Guarantee Agreement (except as expressly provided in the
Guarantee Agreement), or limit its liability in respect of such Guarantee,
without the written consent of each Lender, (vii) release all or a substantial
part of the Collateral from the Liens of the Security Documents, without the
written consent of each Lender (provided, however, that the sale of up to 20% of
                                --------  -------
the equity interests in the general partner of the Equipment Subsidiary shall
require the consent only of the Required Lenders), (viii) change any provisions
of any Loan Document in a manner that by its terms adversely affects the rights
in respect of payments due to Lenders holding Loans of any Class differently
than those holding Loans of any other Class, without the written consent of
Lenders holding a majority in interest of the outstanding Loans and unused
Commitments of each affected Class or (ix) change the rights of the Tranche B
Lenders to decline mandatory prepayments as provided in Section 2.09, without
the written consent of Tranche B Lenders holding a majority of the outstanding
Tranche B Loans; provided further that (A) no such agreement shall amend, modify
                 ----------------
or otherwise affect the rights or duties of the Administrative Agent or the
Issuing Bank without the prior written consent of the Administrative Agent or
the Issuing Bank, as the case may be, and (B) any waiver, amendment or
modification of this Agreement that by its terms affects the rights or duties
under this Agreement of the Revolving Lenders (but not the Tranche A Lenders and
Tranche B Lenders), the Tranche A Lenders (but not the Revolving Lenders and
Tranche B Lenders) or the Tranche B Lenders (but not the Revolving Lenders and
Tranche A Lenders) may be effected by an agreement or agreements in
<PAGE>

                                                                             137

writing entered into by the Borrower and requisite percentage in interest of the
affected Class of Lenders.

          SECTION 9.03.  Expenses; Indemnity; Damage Waiver.  (a)  The Borrower
                         -----------------------------------
shall pay (i) all reasonable out-of-pocket expenses incurred by the
Administrative Agent, the Issuing Bank and their Affiliates, including due
diligence expenses and the reasonable fees, charges and disbursements of counsel
for the Administrative Agent, in connection with the syndication of the credit
facilities provided for herein, the preparation, execution, delivery and
administration of the Loan Documents or the other documentation contemplated
hereby or thereby or any amendments, modifications or waivers of the provisions
thereof (whether or not the transactions contemplated hereby or thereby shall be
consummated) and (ii) all out-of-pocket expenses incurred by the Administrative
Agent, the Issuing Bank or any Lender, including the fees, charges and
disbursements of any counsel for the Administrative Agent, the Issuing Bank or
any Lender, in connection with (x) the enforcement or protection of its rights
in connection with the Loan Documents, including its rights under this Section,
or in connection with the Loans made or Letters of Credit issued hereunder,
including all such out-of-pocket expenses incurred during any workout,
restructuring or related negotiations in respect of such Loans and Letters of
Credit, and (y) any documentary taxes associated with the consummation of the
Facilities.

          (b)  The Borrower shall indemnify the Administrative Agent, the
Issuing Bank, and each Lender, and each Related Party of any of the foregoing
Persons (each such Person being called an "Indemnitee") against, and hold each
                                           ----------
Indemnitee harmless from, any and all losses, claims, damages, liabilities and
related expenses, including the fees, charges and disbursements of any counsel
for any Indemnitee, incurred by or asserted against any Indemnitee arising out
of, in connection with, or as a result of (i) the execution or delivery of any
Loan Document or any other agreement or instrument contemplated hereby, the
performance by the parties to the Loan Documents of their respective obligations
thereunder or the consummation of the Transactions or any other transactions
contemplated hereby, (ii) any Loan or the use of the proceeds therefrom and any
Letter of Credit and the use thereof, (iii) any actual or alleged presence or
release of Hazardous Materials on or from any Mortgaged Property or any other
property owned or
<PAGE>

                                                                             138

operated by the Borrower or any of its Subsidiaries, or any Environmental
Liability related in any way to the Borrower or any of its Subsidiaries, or (iv)
any actual or prospective claim, litigation, investigation or proceeding
relating to any of the foregoing, whether based on contract, tort or any other
theory and regardless of whether any Indemnitee is a party thereto; provided
                                                                    --------
that such indemnity shall not, as to any Indemnitee, be available to the extent
that such losses, claims, damages, liabilities or related expenses are
determined by a court of competent jurisdiction by a final judgment (not
overturned or vacated on appeal) to have resulted from the gross negligence or
wilful misconduct of such Indemnitee.

          (c)  To the extent that the Borrower fails to pay any amount required
to be paid by it to the Administrative Agent under paragraph (a) or (b) of this
Section, each Lender severally agrees to pay to the Administrative Agent, such
Lender's pro rata share (determined as of the time that the applicable
unreimbursed expense or indemnity payment is sought) of such unpaid amount;
provided that the unreimbursed expense or indemnified loss, claim, damage,
- --------
liability or related expense, as the case may be, was incurred by or asserted
against the Administrative Agent in its capacity as such.  For purposes hereof,
a Lender's "pro rata share" shall be determined based upon its share of the sum
of the total Revolving Exposures, outstanding Term Loans and unused Commitments
at the time.

          (d)  To the extent permitted by applicable law, the Borrower shall not
assert, and hereby waives, any claim against any Indemnitee, on any theory of
liability, for special, indirect, consequential or punitive damages (as opposed
to direct or actual damages) arising out of, in connection with, or as a result
of, this Agreement or any agreement or instrument contemplated hereby, the
Transactions, any Loan or the use of the proceeds thereof.

          (e)  All amounts due under this Section shall be payable promptly
after written demand therefor.

          SECTION 9.04.  Successors and Assigns.  (a)  The provisions of this
                         -----------------------
Agreement shall be binding upon and inure to the benefit of the parties hereto
and their respective successors and assigns permitted hereby, except that the
Borrower may not assign or otherwise transfer any of its rights or obligations
hereunder without the prior written
<PAGE>

                                                                             139

consent of each Lender (and any attempted assignment or transfer by the Borrower
without such consent shall be null and void). Nothing in this Agreement,
expressed or implied, shall be construed to confer upon any Person (other than
the parties hereto, their respective successors and assigns permitted hereby
and, to the extent expressly contemplated hereby, the Related Parties of each of
the Administrative Agent, the Issuing Bank and the Lenders) any legal or
equitable right, remedy or claim under or by reason of this Agreement.

          (b)  Any Lender may assign to one or more assignees all or a portion
of its rights and obligations under this Agreement (including all or a portion
of its Commitment and the Loans at the time owing to it); provided  that (i)
                                                          --------
except in the case of an assignment to a Lender or an Affiliate of a Lender,
each of the Borrower and the Administrative Agent (and, in the case of an
assignment of a Revolving Commitment, the Issuing Bank) must give their prior
written consent to such assignment (which consent shall not be unreasonably
withheld, it being understood that the Borrower may reasonably withhold consent
to any proposed assignment to a Foreign Lender that does not qualify for a
complete exemption from withholding taxes), (ii) except in the case of an
assignment to a Lender or an Affiliate of a Lender or an assignment of the
entire remaining amount of the assigning Lender's Commitment or Loans, the
amount of the Commitment or Loans of the assigning Lender subject to each such
assignment (determined as of the date the Assignment and Acceptance with respect
to such assignment is delivered to the Administrative Agent) shall not be less
than $5,000,000 and, after giving effect to such assignment, the remaining
aggregate amount of such assigning Lender's Commitment and Loans shall not be
less than $1,000,000, unless each of the Borrower and the Administrative Agent
otherwise consent, (iii) each partial assignment shall be made as an assignment
of a proportionate part of all the assigning Lender's rights and obligations
under this Agreement, except that this clause (iii) shall not be construed to
prohibit the assignment of a proportionate part of all the assigning Lender's
rights and obligations in respect of one Class of Commitments or Loans, (iv) the
parties to each assignment shall execute and deliver to the Administrative Agent
an Assignment and Acceptance, together with a processing and recordation fee of
$3,500 (provided, however, that no such fee shall be payable in the case of an
        --------  -------
assignment to another Lender or an Affiliate of a Lender;
<PAGE>

                                                                             140

and provided further that, in the case of contemporaneous assignments by a
    -------- -------
Lender to more than one fund managed by the same investment advisor (which funds
are not then Lenders hereunder), only a single $3,500 such fee shall be payable
for all such contemporaneous assignments) and (v) the assignee, if it shall not
be a Lender, shall deliver to the Administrative Agent an Administrative
Questionnaire; and provided further that any consent of the Borrower otherwise
                   ----------------
required under this paragraph shall not be required if an Event of Default has
occurred and is continuing. Subject to acceptance and recording thereof pursuant
to paragraph (d) of this Section, from and after the effective date specified in
each Assignment and Acceptance the assignee thereunder shall be a party hereto
and, to the extent of the interest assigned by such Assignment and Acceptance,
have the rights and obligations of a Lender under this Agreement, and the
assigning Lender thereunder shall, to the extent of the interest assigned by
such Assignment and Acceptance, be released from its obligations under this
Agreement (and, in the case of an Assignment and Acceptance covering all of the
assigning Lender's rights and obligations under this Agreement, such Lender
shall cease to be a party hereto but shall continue to be entitled to the
benefits of Sections 2.13, 2.14, 2.15 and 9.03). Any assignment or transfer by a
Lender of rights or obligations under this Agreement that does not comply with
this paragraph shall be treated for purposes of this Agreement as a sale by such
Lender of a participation in such rights and obligations in accordance with
paragraph (e) of this Section.

          (c)  The Administrative Agent, acting for this purpose as an agent of
the Borrower, shall maintain at one of its offices in The City of New York a
copy of each Assignment and Acceptance delivered to it and a register for the
recordation of the names and addresses of the Lenders, and the Commitment of,
and principal amount of the Loans owing to, each Lender pursuant to the terms
hereof from time to time (the "Register").  The entries in the Register shall be
                               --------
conclusive, and the Borrower, the Administrative Agent, the Issuing Bank and the
Lenders may treat each Person whose name is recorded in the Register pursuant to
the terms hereof as a Lender hereunder for all purposes of this Agreement,
notwithstanding notice to the contrary.  The Register shall be available for
inspection by the Borrower and any Lender, at any reasonable time and from time
to time upon reasonable prior notice.
<PAGE>

                                                                             141

          (d)  Upon its receipt of a duly completed Assignment and Acceptance
executed by an assigning Lender and an assignee, the assignee's completed
Administrative Questionnaire (unless the assignee shall already be a Lender
hereunder), the processing and recordation fee referred to in paragraph (b) of
this Section and any written consent to such assignment required by paragraph
(b) of this Section, the Administrative Agent shall accept such Assignment and
Acceptance and record the information contained therein in the Register.  No
assignment shall be effective for purposes of this Agreement unless it has been
recorded in the Register as provided in this paragraph.

          (e)  Any Lender may, without the consent of the Borrower, the
Administrative Agent or the Issuing Bank, sell participations to one or more
banks or other entities (a "Participant") in all or a portion of such Lender's
                            -----------
rights and obligations under this Agreement (including all or a portion of its
Commitment and the Loans owing to it); provided that (i) such Lender's
                                       --------
obligations under this Agreement shall remain unchanged, (ii) such Lender shall
remain solely responsible to the other parties hereto for the performance of
such obligations and (iii) the Borrower, the Administrative Agent, the Issuing
Bank and the other Lenders shall continue to deal solely and directly with such
Lender in connection with such Lender's rights and obligations under this
Agreement.  Any agreement or instrument pursuant to which a Lender sells such a
participation shall provide that such Lender shall retain the sole right to
enforce the Loan Documents and to approve any amendment, modification or waiver
of any provision of the Loan Documents; provided that such agreement or
                                        --------
instrument may provide that such Lender will not, without the consent of the
Participant, agree to any amendment, modification or waiver described in the
first proviso to Section 9.02(b) that affects such Participant.  Subject to
paragraph (f) of this Section, the Borrower agrees that each Participant shall
be entitled to the benefits of Sections 2.13, 2.14 and 2.15 to the same extent
as if it were a Lender and had acquired its interest by assignment pursuant to
paragraph (b) of this Section provided that no Participant shall be entitled to
receive any greater amount pursuant to such Sections than the assigning Lender
would have been entitled to receive in respect of the amount of the
participation transferred had no such transfer occurred.  To the extent
permitted by law, each Participant also shall be entitled to the benefits of
Section 9.08 as though it
<PAGE>

                                                                             142

were a Lender, provided such Participant agrees to be subject to Section 2.16(c)
as though it were a Lender.

          (f)  A Participant shall not be entitled to receive any greater
payment under Section 2.13 or 2.15 than the applicable Lender would have been
entitled to receive with respect to the participation sold to such Participant,
unless the sale of the participation to such Participant is made with the
Borrower's prior written consent.  A Participant that would be a Foreign Lender
if it were a Lender shall not be entitled to the benefits of Section 2.15 unless
the Borrower is notified of the participation sold to such Participant and such
Participant agrees, for the benefit of the Borrower, to comply with Section
2.15(e) as though it were a Lender.

          (g)  Any Lender may at any time pledge or assign a security interest
in all or any portion of its rights under this Agreement and any other Loan
Document to secure obligations of such Lender, including any pledge or
assignment to secure obligations to a Federal Reserve Bank, and this Section
shall not apply to any such pledge or assignment of a security interest;
provided that no such pledge or assignment of a security interest shall release
- --------
a Lender from any of its obligations hereunder or substitute any such pledgee or
assignee for such Lender as a party hereto.

          SECTION 9.05.  Survival.  All covenants, agreements, representations
                         ---------
and warranties made by the Loan Parties in the Loan Documents and in the
certificates or other instruments  delivered in connection with or pursuant to
this Agreement or any other Loan Document shall be considered to have been
relied upon by the other parties hereto and shall survive the execution and
delivery of the Loan Documents and the making of any Loans, regardless of any
investigation made by any such other party or on its behalf and notwithstanding
that the Administrative Agent or any Lender may have had notice or knowledge of
any Default or incorrect representation or warranty at the time any credit is
extended hereunder, and shall continue in full force and effect as long as the
principal of or any accrued interest on any Loan or any fee or any other amount
payable under this Agreement is outstanding and unpaid and so long as the
Commitments have not expired or terminated.  The provisions of Sections 2.13,
2.14, 2.15, 9.03 and 9.12 and Article VIII shall survive and remain in full
force and
<PAGE>

                                                                             143

effect regardless of the consummation of the transactions contemplated hereby,
the repayment of the Loans, the expiration or termination of the Commitments or
the termination of this Agreement or any provision hereof.

          SECTION 9.06.  Counterparts; Integration; Effectiveness.  This
                         -----------------------------------------
Agreement may be executed in counterparts (and by different parties hereto on
different counterparts), each of which shall constitute an original, but all of
which when taken together shall constitute a single contract.  This Agreement,
the other Loan Document and any separate letter agreements with respect to fees
payable to the Administrative Agent constitute the entire contract among the
parties relating to the subject matter hereof and supersede any and all previous
agreements and understandings, oral or written, relating to the subject matter
hereof.  Except as provided in Section 4.01, this Agreement shall become
effective when it shall have been executed by the Administrative Agent and when
the Administrative Agent shall have received counterparts hereof which, when
taken together, bear the signatures of each of the other parties hereto, and
thereafter shall be binding upon and inure to the benefit of the parties hereto
and their respective successors and assigns.  Delivery of an executed
counterpart of a signature page of this Agreement by telecopy shall be effective
as delivery of a manually executed counterpart of this Agreement.

          SECTION 9.07.  Severability.  Any provision of this Agreement held to
                         -------------
be invalid, illegal or unenforceable in any jurisdiction shall, as to such
jurisdiction, be ineffective to the extent of such invalidity, illegality or
unenforceability without affecting the validity, legality and enforceability of
the remaining provisions hereof; and the invalidity of a particular provision in
a particular jurisdiction shall not invalidate such provision in any other
jurisdiction.

          SECTION 9.08.  Right of Setoff.  If an Event of Default shall have
                         ----------------
occurred and be continuing, each Lender and each of its Affiliates is hereby
authorized at any time and from time to time, to the fullest extent permitted by
law, to set off and apply any and all deposits (general or special, time or
demand, provisional or final) at any time held and other obligations at any time
owing by such Lender or Affiliate to or for the credit or the account of the
Borrower against any of and all the obligations of the Borrower now or hereafter
existing under this Agreement held
<PAGE>

                                                                             144

by such Lender, irrespective of whether or not such Lender shall have made any
demand under this Agreement and although such obligations may be unmatured. The
rights of each Lender under this Section are in addition to other rights and
remedies (including other rights of setoff) which such Lender may have.

          SECTION 9.09.  Governing Law; Jurisdiction; Consent to Service of
                         --------------------------------------------------
Process.  (a)  This Agreement shall be construed in accordance with and governed
- --------
by the law of the State of New York.

          (b)  The Borrower hereby irrevocably and unconditionally submits, for
itself and its property, to the nonexclusive jurisdiction of the Supreme Court
of the State of New York sitting in New York County and of the United States
District Court of the Southern District of New York, and any appellate court
from any thereof, in any action or proceeding arising out of or relating to any
Loan Document, or for recognition or enforcement of any judgment, and each of
the parties hereto hereby irrevocably and unconditionally agrees that all claims
in respect of any such action or proceeding may be heard and determined in such
New York State or, to the extent permitted by law, in such Federal court.  Each
of the parties hereto agrees that a final judgment in any such action or
proceeding shall be conclusive and may be enforced in other jurisdictions by
suit on the judgment or in any other manner provided by law.  Nothing in this
Agreement or any other Loan Document shall affect any right that the
Administrative Agent, the Issuing Bank or any Lender may otherwise have to bring
any action or proceeding relating to this Agreement or any other Loan Document
against the Borrower or its properties in the courts of any jurisdiction.

          (c)  The Borrower hereby irrevocably and unconditionally waives, to
the fullest extent it may legally and effectively do so, any objection which it
may now or hereafter have to the laying of venue of any suit, action or
proceeding arising out of or relating to this Agreement or any other Loan
Document in any court referred to in paragraph (b) of this Section.  Each of the
parties hereto hereby irrevocably waives, to the fullest extent permitted by
law, the defense of an inconvenient forum to the maintenance of such action or
proceeding in any such court.
<PAGE>

                                                                             145

          (d)  Each party to this Agreement irrevocably consents to service of
process in the manner provided for notices in Section 9.01.  Nothing in this
Agreement or any other Loan Document will affect the right of any party to this
Agreement to serve process in any other manner permitted by law.

          SECTION 9.10.  WAIVER OF JURY TRIAL.  EACH PARTY HERETO HEREBY WAIVES,
                         ---------------------
TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A
TRIAL BY JURY IN  ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR
RELATING TO THIS AGREEMENT, ANY OTHER LOAN DOCUMENT OR THE TRANSACTIONS
CONTEMPLATED HEREBY (WHETHER BASED ON CONTRACT, TORT OR ANY OTHER THEORY).  EACH
PARTY HERETO (A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY
OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD
NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B)
ACKNOWLEDGES THAT IT AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER
INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND
CERTIFICATIONS IN THIS SECTION.

          SECTION 9.11.  Headings.  Article and Section headings and the Table
                         ---------
of Contents used herein are for convenience of reference only, are not part of
this Agreement and shall not affect the construction of, or be taken into
consideration in interpreting, this Agreement.
<PAGE>

                                                                             146

          SECTION 9.12.  Confidentiality.  Each of the  Administrative Agent and
                         ----------------
the Lenders agrees to maintain the confidentiality of the Information (as
defined below), except that Information may be disclosed (a) to its and its
Affiliates' directors, officers, employees and agents, including accountants,
legal counsel and other advisors (it being understood that the Persons to whom
such disclosure is made will be informed of the confidential nature of such
Information and instructed to keep such Information confidential), (b) to the
extent requested by any regulatory authority, (c) to the extent required by
applicable laws or regulations or by any subpoena or similar legal process, (d)
to any other party to this Agreement, (e) in connection with the exercise of any
remedies hereunder or any suit, action or proceeding relating to this Agreement
or any other Loan Document or the enforcement of rights hereunder or thereunder,
(f) subject to an agreement containing provisions substantially the same as
those of this Section, to any assignee of or Participant in, or any prospective
assignee of or Participant in, any of its rights or obligations under this
Agreement, (g) with the consent of the Borrower or (h) to the extent such
Information (i) becomes publicly available other than as a result of a breach of
this Section or (ii) becomes available to the Administrative Agent or any Lender
on a nonconfidential basis from a source other than the Borrower or any
Affiliate of the Administrative Agent or the Lenders.  For the purposes of this
Section, "Information" means all information received from or on behalf of the
          -----------
Borrower relating to the Borrower or its business, other than any such
information that is available to the Administrative Agent or any Lender on a
nonconfidential basis prior to disclosure by the Borrower.  Any Person required
to maintain the confidentiality of Information as provided in this Section shall
be considered to have complied with its obligation to do so if such Person has
exercised the same degree of care to maintain the confidentiality of such
Information as such Person would accord to its own confidential information.


          IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed by their respective authorized officers as of the day and year
first above written.


                                   TELECORP PCS, INC.,
<PAGE>

                                     by
                                         /s/ Thomas Sullivan
                                         --------------------------------------
                                         Name:   Thomas Sullivan
                                         Title:  President


                                   THE CHASE MANHATTAN BANK, individually and as
                                   Administrative Agent,

                                     by
                                         /s/ Deborah Davey
                                         --------------------------------------
                                         Name:   Deborah Davey
                                         Title:  Vice President


                                   TORONTO DOMINION [TEXAS], INC.,

                                     by
                                         /s/ Debbie A. Greene
                                         --------------------------------------
                                         Name:   Debbie A. Greene
                                         Title:  Vice President


                                   BANKERS TRUST COMPANY, individually and as
                                   Documentation Agent,

                                     by
                                         /s/ Gregory P. Ghefrin
                                         --------------------------------------
                                         Name:   Gregory P. Ghefrin
                                         Title:  Vice President


                                   THE BANK OF NEW YORK,

                                     by
                                         /s/ Gerry Granovsky
                                         --------------------------------------
                                         Name:   Gerry Granovsky
                                         Title:  Vice President


                                   CIBC INC.,

                                     by
                                         /s/ Cynthia McCahill
                                         --------------------------------------
<PAGE>

                                         Name:   Cynthia McCahill
                                         Title:  Executive Director CIBC
                                                  Oppenheimer Corp., as Agent


                                   MORGAN GUARANTY TRUST COMPANY OF NEW YORK,

                                     by
                                         /s/ R. Blake Witherington
                                         --------------------------------------
                                         Name:   R. Blake Witherington
                                         Title:  Vice President


                                   GENERAL ELECTRIC CAPITAL CORPORATION,

                                     by
                                         /s/ Molly S. Fergusson
                                         --------------------------------------
                                         Name:   Molly S. Fergusson
                                         Title:  Manager, Operations


                                   LEHMAN COMMERCIAL PAPER INC.,

                                     by
                                         /s/ William J. Gallagher
                                         --------------------------------------
                                         Name:   William J. Gallagher
                                         Title:  Authorized Signatory


                                   BANK OF TOKYO MITSUBISHI TRUST COMPANY,

                                     by
                                         /s/ Michael Deadder
                                         --------------------------------------
                                         Name:   Michael Deadder
                                         Title:  Vice President


                                   BANKBOSTON, N.A.,

                                     by
                                         /s/ Jeffrey A. Wellington
                                         --------------------------------------
                                         Name:   Jeffrey A. Wellington
                                         Title:  Director
<PAGE>

                                   FLEET NATIONAL BANK,

                                     by
                                         /s/ William Weiss
                                         --------------------------------------
                                         Name:   William Weiss
                                         Title:  Assistant Vice President


                                   CREDIT LYONNAIS NEW YORK BRANCH,

                                     by
                                         /s/ Michael Henderlong
                                         --------------------------------------
                                         Name:   Michael Henderlong
                                         Title:  Vice President


                                   MERRILL LYNCH SENIOR FLOATING RATE FUND,
                                   INC.,

                                     by
                                         /s/ Andrew C. Liggio
                                         --------------------------------------
                                         Name:   Andrew C. Liggio
                                         Title:  Authorized Signatory


                                   SENIOR HIGH INCOME PORTFOLIO, INC.,

                                     by
                                         /s/ Andrew C. Liggio
                                         --------------------------------------
                                         Name:   Andrew C. Liggio
                                         Title:  Authorized Signatory


                                   DEBT STRATEGIES FUND, INC.,

                                     by
                                         /s/ Andrew C. Liggio
                                         --------------------------------------
                                         Name:   Andrew C. Liggio
                                         Title:  Authorized Signatory
<PAGE>

                                   FRANKLIN FLOATING RATE TRUST,

                                     by
                                         /s/ Chauncey Lufkin
                                         --------------------------------------
                                         Name:   Chauncey Lufkin
                                         Title:  Vice President
<PAGE>

                                                                   SCHEDULE 1.01

                              Equity Participants

Chase Capital
Desai Capital
Hoak Capital
CB Capital Investors, L.P.
Equity-Linked Investors-II
Private Equity Investors III, L.P.
Hoak Communications Partners, L.P.
HCP Capital Fund, L.P.
Whitney Equity Partners, L.P.
J.H. Whitney III, L.P.
Whitney Strategic Partners III, L.P.
Entergy Technology Holding Company
Media/Communications Partners III Limited Partnership
Media/Communications Investors Limited Partnership
One Liberty Fund III, L.P.
Toronto Dominion Investments, Inc.
Northwood Ventures LLC
Northwood Capital Partnerships LLC
Gerald Vento
Thomas Sullivan
<PAGE>

                                                                   SCHEDULE 2.01

                                  Commitments

<TABLE>
<CAPTION>
                                         Revolving          Tranche A            Tranche B
                                         ---------          ---------            ---------
      Lenders                           Commitment          Commitment          Commitment
      -------                           ----------          ----------          ----------
<S>                                     <C>                 <C>                 <C>
The Chase Manhattan Bank                25,000,000          25,000,000          115,000,000

Toronto Dominion (Texas), Inc.          20,000,000          20,0000000                    0

Bankers Trust Company                   25,000,000          25,0000000                    0

The Bank of New York                    12,500,000          12,500,000           10,000,000

CIBC Inc.                               12,500,000          12,500,000           10,000,000

Morgan Guaranty Trust
Company of New York                     12,500,000          12,500,000           10,000,000

General Electric
Capital Corporation                     12,500,000          12,500,000            5,000,000

Lehman Commercial
Paper Inc.                              12,500,000          12,500,000            5,000,000

Bank of Tokyo Mitsubishi
Trust Company                            7,500,000           7,500,000                    0

BankBoston, N.A.                         5,000,000           5,000,000           15,000,000

Fleet National Bank                      5,000,000           5,000,000            5,000,000

Credit Lyonnais New
York Branch                                      0                   0           20,000,000

Merrill Lynch Senior Floating
 Rate Fund, Inc.                                 0                   0           15,000,000

Senior High Income
Portfolio, Inc.                                  0                   0            5,000,000

Debt Strategies Fund, Inc.                       0                   0            5,000,000

Franklin Floating Rate Trust                     0                   0            5,000,000
                                       -----------         -----------          -----------

Total                                  150,000,000         150,000,000          225,000,000
</TABLE>
<PAGE>

                                                                   SCHEDULE 3.05

                         Real Property Owned or Leased


Owned:  None.

Leased:  See attached pages.
<PAGE>

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------
Landlord                   Execution Date        Monthly Base Rent           Assignment
- -----------------------------------------------------------------------------------------------------
<S>                    <C>                      <C>                          <C>
Paula A. Dolan,        May 29, 1998             $7,461.80 (1-5 yrs.)         Permitted to
 Trustee of                                     Lease Status:  Fully          Affiliates
100 Tech Realty                                       Executed
 Trust, under
 Declaration of
 Trust dated April
 4, 1998
13 Wheeling Avenue
Woburn, MA 01801
- -----------------------------------------------------------------------------------------------------
Facility: Switch
Facility Address:
155 Northboro Road
Southborough, MA
- -----------------------------------------------------------------------------------------------------
FIVE N ASSOCIATES      October 17, 1997         $9,250.00                    Permitted to
40 Temple Street       First Supplement: May    Lease Status: Fully          Affiliates
Nashua, NH 03060       29, 1998                 Executed
- -----------------------------------------------------------------------------------------------------
Facility: Office
Facility Address:
20 Industrial Park Drive
Nashua, NH
- -----------------------------------------------------------------------------------------------------
Charles E. Smith       June 5, 1998             $9,528.75                    No assignment
Commercial Realty                               Lease Status: Fully          provision is
1666 K Street, NW                               Executed                     contained within the
Suite 1200                                                                   agreement
Washington, DC 20006
- -----------------------------------------------------------------------------------------------------
Facility: Office
Facility Address:
1101 17th Street,
 N.W.
Suite 411
Washington, DC
- -----------------------------------------------------------------------------------------------------
Continental Poydras    October 22, 1997         April 1- April 30:           Prior written consent
 Corporation           Amended: March 30,       $10,236.25                   from the lessor is
1340 Poydras Street    1998                                                  required.  60 day
Suite 1430                                      May 1, 1998- July 31,        notice to be provided
New Orleans, LA 70112                           1998: $10,986.25             including financial
                                                                             information for the
                                                Lease Status: Fully          assignee
                                                Executed
- -----------------------------------------------------------------------------------------------------
Facility: Office
Facility Address:
1340 Poydras Street
Suite 550
New Orleans, LA
- -----------------------------------------------------------------------------------------------------
Three Financial        October 23, 1997         $17,174.84                   Need copy of Lease
- -----------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

<TABLE>
- -----------------------------------------------------------------------------------------------------
<S>                    <C>                     <C>                     <C>
 Centre Joint Venture
900 So. Shackleford
 Road
Suite 210
Little Rock, AR 72211
- -----------------------------------------------------------------------------------------------------
Facility:
Facility Address:
- -----------------------------------------------------------------------------------------------------
M. Arthur Gensler,     March, 1998             $33,500.00              Prior consent from
 Jr. & Associates,                             Lease Status: Fully     the sublessor is
 Inc.                                          executed copy is        required.  Permitted
600 California                                 required                to affiliates
San Francisco, CA
 94108
Attn: Ben Fisher
- -----------------------------------------------------------------------------------------------------
Facility: Office
Facility Address:
1101 17th Street,
 N.W.
Suite 900
Washington, D.C.
- -----------------------------------------------------------------------------------------------------
Richard Orgel          November 1, 1997        $1,850.00               Permitted to
4091 Viscount Avenue                           Lease Status: Fully     affiliates
Memphis, TN 38118                              executed
- -----------------------------------------------------------------------------------------------------
Facility: Office
Facility Address:
4357 Getwell Road
Memphis, TN
- -----------------------------------------------------------------------------------------------------
State of CA Public     March 3, 1998            March 1, 1998- May     Permitted to an
 Employees'                                     31, 2003: $10,306.88   affiliate.  Thirty
 Retirement System                                                     day prior notice to
C/o LaSalle Advisors                            May 1, 2003-May 31,    Lessor.
 Limited                                          2008: $11,612.41
5910 North Central
 Expressway, Suite                              Lease Status: Fully
 1130                                                 executed
Dallas, TX 75206
- -----------------------------------------------------------------------------------------------------
Facility: Switch
Facility Address:
Building "A"
Mendenhall Business
 Center
4400 Mendenhall
- -----------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

<TABLE>
- ---------------------------------------------------------------------------------------------
<S>                    <C>                     <C>                     <C>
Road
Suites 7 and 8
Memphis, TN
- ---------------------------------------------------------------------------------------------
Entergy Enterprises,   September 1, 1997       $17,174.84              Permitted to an
 Inc.                                                                  affiliate
900 South Shackleford                          Status: Fully executed
Suite 210
Little Rock, AR 72211
- ---------------------------------------------------------------------------------------------
Facility: Office
Facility Address:
Three Financial
 Center
900 South
 Shackleford Road
Sixth Floor
Little Rock, AR
- ---------------------------------------------------------------------------------------------
General Motors         February 25, 1998       $18,015.00              Permitted to an
 Corporation                                                           affiliate
3044 West Grand Blvd.                          Status: Fully Executed
Detroit, MI 48202
- ---------------------------------------------------------------------------------------------
Facility:  Office
Facility Address:
866 Ridgeway Loop
Suite 100
Memphis, TN
- ---------------------------------------------------------------------------------------------
First Industrial,      February 27, 1998       $8,480.74               Permitted to an
 L.P.                                          Status: Require fully   affiliate.  Prior
311 So. Wacker Drive                           executed copy.          notice is required.
Suite 4000
Chicago, IL 60606
Attn: Michael W.
 Brennan
- ---------------------------------------------------------------------------------------------
Facility: Office
Facility Address:
James Park
160 James Drive East
St. Rose, LA
- ---------------------------------------------------------------------------------------------
485 Properties,        June 12, 1998           $70,257.83              Permitted to an
 L.L.C.                                                                affiliate.  Thirty
c/o LaSalle Partners                           Status: Fully executed  day prior notice to
Management                                                             lessor required
- ---------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

<TABLE>
- ---------------------------------------------------------------------------------------------
<S>                      <C>                      <C>                 <C>
Limited
1010 North Glebe Road
Arlington, VA 22201
- ---------------------------------------------------------------------------------------------
Facility: Office
Facility Address:
One Ballston Plaza
 1010 North Glebe
 Road
Arlington, VA
- ---------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

Executed Lease Report

<TABLE>
<CAPTION>
Little Rock
Site ID   Landlord Name                                Site Address
<S>       <C>                                          <C>                      <C>                 <C>
LTR001    Dale Wilcox and Gail Wilcox                  800 Gaines Street        Little Rock         Arkansas
LTR002    Inntowne Partners, Ltd.                      600 Interstate 30        Little Rock         Arkansas
LTR003    Mercantile Bank of Arkansas,
          N.A., formerly                               One Riverfront Place     North Little Rock   Arkansas
          known as The Twin City Bank
LTR006    John Mosley and Barry Mosley                 10021 Highway 70         North Little Rock   Arkansas
LTR007    William T. McCauley and Sonja G. McCauley    2700 Booker Street       Little Rock         Arkansas
LTR008    The Crestwood Company, an Arkansas           4801 North Hills
          Partnership                                  Boulevard                North Little Rock   Arkansas
LTR010    Rivercliff Company, Inc.                     2000 Magnolia Avenue     Little Rock         Arkansas
LTR011    Centre Place Property Owners Association     212 Center Street        Little Rock         Arkansas
LTR015    Rosedale Optimist Club                       8616 Asher Avenue        Little Rock         Arkansas
LTR018    Newman E. McGee, Jr. and Bonnie Sue McGee    901 Towne Oaks Drive     Little Rock         Arkansas
LTR024    Clarence Bryels                              8510 Colonel Miller Road Little Rock         Arkansas
LTR024    Daniel Lloyd Nunley                          #6 Hethwood              Little Rock         Arkansas
LTR024    Oak Park Baptist Church                      8200 Flint Ridge Road    Little Rock         Arkansas
LTR025    Edward Culin and Emma Lou Culin              11209 Interstate 30      Little Rock         Arkansas
LTR026    Doug Reynolds Suzuki of Little Rock, Inc.    9800 Highway I-30        Little Rock         Arkansas
LTR027    Mid-South Appliance Store                    7501 Enmar Drive         Little Rock         Arkansas
LTR028    Arkco, Inc.                                  3001 West 60th Street    Little Rock         Arkansas
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                      <C>                 <C>
LTR031    Maumelle Suburban Improvement District No.   Off Milwood Circle       Maumelle            Arkansas
          500
LTR032    Kay Bush                                     10306 Dairy Lane         North Little Rock   Arkansas
LTR03     Maumelle Suburban Improvement District No.   #99 Club Manor           Maumelle            Arkansas
          500
LTR034    John Kierre, Jr. and Jeannie Kierre          22A Remount Road         North Little Rock   Arkansas
LTR035    Maurice Johnson and Ruthie Johnson           603 Cotton Street        North Little Rock   Arkansas
LTR036    Koppers Industries, Inc.                     End of Ira Street        North Little Rock   Arkansas
LTR038    Harvey Watson and Donna Watson               9202 Highway 165         North Little Rock   Arkansas
LTR039    James Tice and Margurette Tice               5900 Wadley Road         Pulaski County      Arkansas
LTR042    Summitt House Apartments Limited Partnership 400 N. University        Little Rock         Arkansas
LTR043    Steven D. Brant and Ramona C. Brant          14717 Highway 107        Jacksonville        Arkansas
LTR045    Jacksonville Water Commission                Paradise Park            Jacksonville        Arkansas
LTR047    Joseph David Harris and Faye B. Harris       4411 John Hardin Drive   Jacksonville        Arkansas
LTR050    Jacksonville Water Commission                Ray Road                 Jacksonville        Arkansas
LTR052    Oak Hill Manor, LLC                          8700 Riley Road          Little Rock         Arkansas
LTR053    Dr. Charles Logan                            708 Kirk Road            Little Rock         Arkansas
LTR055    Linda M. Patterson, Lana K. Patterson, Lisa  701 Nix Road             Little Rock         Arkansas
          P. Strom, and Dennis Strom
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                                <C>                 <C>
TR056     Ernest Melvin White, Theil Eugene White,     10500 Chicot Road                  Little Rock         Arkansas
          Estelle White, Virginia Lee Grable, Harold
          Lynn White and Joann White
LTR057    Paul Dixon, Jr. and Mildred Alice Dixon      31 Shamburger Lane                 Sweet Home          Arkansas
          Staggs
LTR070    Conway Corporation                           480 Amity Road                     Conway              Arkansas
LTR071    Winton Mattison and Dorothy Mattison         3491 Highway 286W                  Conway              Arkansas
LTR072    Conway Corporation                           Robins Street                      Conway              Arkansas
LTR073    Conway Corporation                           #1 Hickory Hills Road              Conway              Arkansas
LTR075    Mickey Johnston and Shelley Johnston         10 East Cadron Ridge Road          Greenbriar          Arkansas
LTR076    Bonnie Steenis                               13 Thorn Cemetery Road             Greenbriar          Arkansas
LTR077    Conway Corporation                           Veteran Drive                      Conway              Arkansas
LTR090    Donald L. Utley and Jane A. Utley            1225 Old Hot Springs Highway       Benton              Arkansas
LTR091    Clifton D. Bailey and Pauline T. Bailey      3300 Derby Road                    Benton              Arkansas
LTR092    Lynch's Stor-N-Lock, LLC                     1510 Gray Street                   Benton              Arkansas
LTR103    SunBay Beach Club Council of Co-Owners, Inc. 4810 Central Avenue                Hot Springs         Arkansas
LTR105    First Church of the Nazarene, Inc.           3804 Central Avenue                Hot Springs         Arkansas
LTR109    James Murrell Sheets, Jeffrey Murrell        1802 Airport Road                  Hot Springs         Arkansas
          Sheets, Beverly Sheets, and Elizabeth A.
          Sheets
LTR140    E.J. Ball Plaza, Inc.                        112 W. Center                      Fayetteville        Arkansas
LTR148    Pleasant Grove Baptist Church                517 Pleasant Grove Road            Lowell              Arkansas
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                      <C>                 <C>
LTR150    Benton County Two-Way Radio, Inc.            840 S. 45th Street       Rogers              Arkansas
LTR153    Mary Louetta Clark, Jerry C. Clark, Becky M. 11682 Rice Lane          Bentonville         Arkansas
          Clark, Coy A. Clark, Tabitha Clark, Thomas
          P. Clark, Dorothy Clark, Virginia Louise
          Kildow, Robert Kildow, and Robert E. Clark
LTR200    Rudy Toepke                                  4900 South Kerr Road     Scott               Arkansas
LTR215    South Central District of the Pentecostal    7226 Wheat Road          North Little Rock   Arkansas
          Church of God
LTR216    Geneva Bevans                                14421-C Frontier Drive   North Little Rock   Arkansas
LTR219    Dallas Provin and Patricia Provin            16 Moore Lane            Conway              Arkansas
LTR252    Lonnie R. Watkins and Patricia L. Watkins    565 Napier               Greenland           Arkansas
LTR270    Edward Culin and Emma Lou Culin              25550 I-30               Alexander           Arkansas
LTR271    Roy E. Bishop                                208 Roya Lane            Bryant              Arkansas
LTR272    Betty Styles and Leamon H. Styles            19522 Interstate 30      Benton              Arkansas
LTR280    Cecil Pruett                                 End of Grayhawk Circle   Cabot               Arkansas
LTR286    Alf D. Price and Betty Price                 61 Smith Road            Cabot               Arkansas
</TABLE>

<TABLE>
<CAPTION>
Memphis
Site ID   Landlord Name                                Site Address
<S>       <C>                                          <C>                      <C>                 <C>
MEM001    Jefferson Plaza Associates                   147 Jefferson            Memphis             Tennessee
MEM002    Memphis Light, Gas and Water                                          Shelby County       Tennessee
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                                <C>                 <C>
MEM003    Memphis Apartment Partners, L.P.             141 Manassas                       Memphis             Tennessee
MEM004    Seventeen Fifty Madison Avenue Partnership   1750 Madison Avenue                Memphis             Tennessee
MEM005    Carnevale, Inc.                              900 Pennsylvania                   Memphis             Tennessee
MEM006    Waterford Plaza Owners' Association, Inc.    200 Wagner Place                   Memphis             Tennessee
MEM009    Memphis Light, Gas and Water                 Illinois Central                   Shelby              Tennessee
                                                       Railroad and Hernando Road         County
MEM011    Tower Ventures I, LLC                        2246 Deadrick Avenue               Memphis             Tennessee
MEM013    Richard Pearce                               5056 Pleasant View                 Memphis             Tennessee
MEM014    Tower Ventures I, LLC                        3420 Chealsea Avenue               Memphis             Tennessee
MEM015    Memphis Light, Gas and Water                 2541 Frisco  Memphis               Tennessee
MEM017    New Wesley Highland Towers Associates        400 South Highland Street          Memphis             Tennessee
MEM018    BMT, LLC                                     181 West Bodley                    Memphis             Tennessee
MEM020    Memphis Light, Gas and Water                                                    Shelby County       Tennessee
MEM022    Color Craft Incorporated                     2727 Faxon Street                  Memphis             Tennessee
MEM025    Memphis Light, Gas and Water                 Getwell Street and Mallory Avenue  Shelby County       Tennessee
MEM027    Tower Ventures I, LLC                        1888 E. Raines Road                Memphis             Tennessee
MEM028    BellSouth Cellular Corp.                     2875 Starling Place                Memphis             Tennessee
MEM029    TPT, LLC                                     2585 McLean Boulevard              Memphis             Tennessee
MEM030    Memphis Light, Gas and Water                 Raleigh Bartlett Road and          Shelby County       Tennessee
                                                       Covington Pike
MEM032    Memphis Light, Gas and Water                 Whitney and Stage Avenues          Memphis             Tennessee
MEM033    Memphis Light, Gas and Water                 Poplar Pike at Memorial Park       Shelby County       Tennessee
                                                       Cemetery
MEM034    Memphis Light, Gas and Water                 Poplar Pike and Kirby Road         Shelby County       Tennessee
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                                <C>                 <C>
MEM035    WEO Tower, Inc.                              7120 Malton Drive                  Memphis             Tennessee
MEM036    Tower Ventures II, LLC                       3785 Edison                        Memphis             Tennessee
MEM037    Lakeview Tower, LLC                          3928 Lakeview Road                 Memphis             Tennessee
MEM042    Memphis Light, Gas and Water                 Airways and Holmes Road            Shelby County       Tennessee
MEM043    Clyde Olin Bynum                             6841 Center Street West            Horn Lake           Mississippi
MEM045    Charles Faulkner                             7283 Horn Lake Road                Walls               Mississippi
MEM049    Memphis Light, Gas and Water                 6204 Mt. Moriah Road               Memphis             Tennessee
MEM050    Underwood United Methodist Church, Inc.      1501 Mt. Moriah                    Memphis             Tennessee
MEM052    Memphis Light, Gas and Water                 Holmes and Tchulahoma Roads        Shelby County       Tennessee
MEM053    Memphis Light, Gas and Water                 Holmes                             Shelby County       Tennessee
MEM054    Pleasant Hill Water Association, Inc.        7600 Pleasant Hill Road            Olive Branch        Mississippi
MEM055    Ronnie D. Hopkins                            7380 Craft-Goodman Highway         Olive Branch        Mississippi
MEM056    Pinnacle Towers, Inc.                        4357 Get Well Road                 Memphis             Tennessee
MEM057    Yates Hopper Partnership                     10290 Old Highway 78               Olive Branch        Mississippi
MEM058    HHG Partnership                              6195 Shelby Drive                  Memphis             Tennessee
MEM059    Memphis Light, Gas and Water                 Holmes Road                        Shelby County       Tennessee
MEM060    Tower Ventures II, LLC                       699 Herbert Road                   Memphis             Tennessee
MEM066    Memphis Light, Gas and Water                 German Parkway                     Shelby County       Tennessee
MEM067    Pinnacle Towers, Inc.                        9351 Macon Road                    Memphis             Tennessee
MEM068    Tower Ventures I, LLC                        2301 Pate Road                     Memphis             Tennessee
MEM070    Memphis Light, Gas and Water                 US Highway 64 and Cobb Road        Shelby County       Tennessee
MEM071    Memphis Light, Gas and Water                 I-40 and Chambers Chapel Road      Shelby County       Tennessee
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                                <C>                 <C>
MEM072    Memphis Light, Gas and Water                 Raleigh-LaGrange Road              Shelby County       Tennessee
MEM074    Tim Fortner and Debbie Fortner               7258 Memphis-Arlington Road        Bartlett            Tennessee
MEM075    Bartlett Gutter Company, Inc.                10410 Highway 70                   Arlington           Tennessee
MEM076    City of Bartlett                             4055 Altruria                      Bartlett            Tennessee
MEM077    City of Bartlett                             6220 Guffin Road                   Bartlett            Tennessee
MEM078    BellSouth Cellular Corp.                     5445 Bolen Huse Road               Memphis             Tennessee
MEM079    Memphis Light, Gas and Water                 St. Elmo and Raleigh Millington    Shelby County       Tennessee
MEM080    Tower Ventures I, LLC                        2950 Frayser Boulevard             Memphis             Tennessee
MEM081    Schoolfield United Methodist Church          1621 Dellwood Avenue               Memphis             Tennessee
MEM083    Tower Ventures I, LLC                        3968 North Watkins                 Memphis             Tennessee
MEM084    Tower Ventures I, LLC                        2670 Fite Road                     Memphis             Tennessee
MEM085    Memphis Light, Gas and Water                 Highway 51 north of Big Creek      Memphis             Tennessee
                                                       Church
MEM086    Lee W. Jones and Juanita E. Jones            5762 Pleasant Ridge Road           Millington          Tennessee
MEM089    Memphis Light, Gas and Water                 12010 Brockwell Road               Arlington           Tennessee
MEM091    BellSouth Cellular Corp.                     2000 Centrepoint Drive             Braden              Tennessee
MEM093    WEO Tower, Inc.                              Albright and Campground Roads      Stanton             Tennessee
MEM094    James L. Willis and Mary A. Willis           Map 122, Parcel 32, Haywood County Stanton             Tennessee
MEM096    Bridgewater Lumber Company                   136 South Washington Street        Brownsville         Tennessee
MEM097    Virginia Tritt, Wayne Tritt and Patsy Tritt  Bratt Thomas Road, Lot 9           Brownsville         Tennessee
MEM098    WEO Tower, Inc.                              Brownsville and Denmark Roads      Brownsville         Tennessee
MEM105    Bernard W. Cogbill                           8843 Highway 70                    Memphis             Tennessee
MEM107    Charles Markham                              78 Fairway Boulevard               Jackson             Tennessee
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                                <C>                 <C>
MEM108    Otto Bailey, Sr. and Lila Bailey             4201 Petro Road  West              Memphis             Arkansas
MEM110    Heartland Equipment, Inc.                    8341 Highway 70  West              Memphis             Arkansas
MEM112    Memphis Light, Gas and Water                 1664 Channel                       Memphis             Tennessee
MEM113    Northwest Arkansas 900, L.L.C.               North of Casino Center Drive       Tunica County       Mississippi
MEM114    Alpha One Leasing, Inc.                      2228 Fitzgeralds Boulevard         Robinsonville       Mississippi
MEM117    Pinnacle Towers, Inc.                        Morrow Crest Drive                 DeSoto County       Tennessee
MEM119    All States Farm Equipment, Inc.              4441 I-55                          Marion              Arkansas
MEM122    James R. Moore and Nancy M. Moore            1478 Front Street                  Gilmore             Arkansas
MEM123    Norcross Farms, LLC                          Section 27, Township 10N, Range 7E Tyronza             Arkansas
MEM124    Jeram, Inc.                                  515 Highway 63 West                Marked Tree         Arkansas
MEM126    Calvary Baptist Church                       305 Bell Street                    Trumann             Arkansas
MEM127    Aubrey VanWinkle and Ora Mae VanWinkle       341 CR 639                         Bay                 Arkansas
MEM129    Andrew A. Gray, DDS                          2206 Fowler Street                 Jonesboro           Arkansas
MEM130    Robert J. Sartin and L. Rachel Sartin        3703 Culberhouse Road              Jonesboro           Arkansas
MEM131    Robert J. Sartin and L. Rachel Sartin        2916 Casey Springs Road            Jonesboro           Arkansas
MEM135    Memphis Light, Gas and Water                 I-240 and Shelbt Street            Shelby County       Tennessee
MEM137    Sukabhai Patel and Gangaben Patel            3645 Canada Road                   Lakeland            Tennessee
MEM139    Ronald Bruce Anglin                          2811 Sanderwood Avenue             Memphis             Tennessee
MEM141    Tower Ventures I, LLC                        1566 Havana Street                 Memphis             Tennessee
MEM142    Memphis Light, Gas and Water                 Mitchell Avenue                    Shelby County       Tennessee
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                                <C>                 <C>
MEM144    Dattel Family Limited Partnership            75 Perkins Road                    Memphis             Tennessee
MEM148    City of Bartlett                             5727 Woodlawn South                Bartlett            Tennessee
MEM149    Memphis Light, Gas and Water                 Mendenhall and Mt. Moriah Roads    Shelby County       Tennessee
MEM152    Helen K. Blackwell and David A. Blackwell    87 Newt Blackwell Road             Humboldt            Tennessee
MEM153    Harold D. Nowell and Stephen Johnson Nowell  2027 Bypass South                  Trenton             Tennessee
MEM154    City of Gibson                               Estes Street                       Gibson              Tennessee
MEM155    17 House, LLC                                1005 North Baird                   Milan               Tennessee
MEM158    Tan-Houston Levee, LLC                       South of Lenow & Morning Sun Roads Cordova             Tennessee
MEM160    Memphis Brakes Service Inc.                  753 Airways Boulevard              Jackson             Tennessee
</TABLE>

<TABLE>
<CAPTION>
New England
Site ID   Landlord Name                                Site Address
<S>       <C>                                          <C>                                <C>                 <C>
HYN004    Seacoast Limited Partnership                 Southern Eagle Cartway             Brewster            Massachusetts
HYN008    Boch Broadcasting, LP                        27 Commodity Road                  Dennis              Massachusetts
HYN009    Dennis Water District                        875 Route 28                       West Dennis         Massachusetts
HYN016    Mashpee Industrial Park Trust                154 Industrial Drive               Mashpee             Massachusetts
HYN019    Radio Falmouth, Inc.                         Spring Bars Road                   Falmouth            Massachusetts
HYN021    American Tower Systems, L.P.                 Scraggy Neck Road                  Cotaumet            Massachusetts
HYN022    Paul J. Medeiros                             50 Portside Drive                  Bourne              Massachusetts
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                                <C>                 <C>
HYN031    Marine Biological Laboratory                 18 MBL Street                      Wood Hole           Massachusetts
HYN107    B&F Realty Trust                             256 White's Path                   South Yarmouth      Massachusetts
HYN109    AIRCOMM, LLC                                 765 Oak Street                     West Barnstable     Massachusetts
HYN111    Ronald Leonard and Karen Leonard             669 Route 6A                       Sandwich            Massachusetts
HYN112    Seacoast Limited Partnership                 Chase Road and Bay View            Sandwich            Massachusetts
HYN116    Highview Condominium Association             End of Highway Drive, Building One Sandwich            Massachusetts
NAS001    Costco Wholesale Corporation                 311 Daniel Webster Highway         Nashua              New Hampshire
NAS013    Francis H. Bettencourt                       Chestnut Drive                     Bedford             New Hampshire
NAS021    Verres Financial Corporation                 800 Harvey Road                    Manchester          New Hampshire
NAS024    Talarico Pontiac-Cadillac, Inc.              1050 Gold Street                   Manchester          New Hampshire
NAS025    Normand Campeau                              East Industrial Drive              Manchester          New Hampshire
NAS026    Brawest Cypress, LLC                         335 Cypress Street                 Manchester          New Hampshire
NAS027    IPC Office Properties, LLC                   900 Elm Street                     Manchester          New Hampshire
NAS028    Order of St. Benedict of New Hampshire       100 St. Anslem Drive               Goffstown           New Hampshire
NAS029    Department of Veterans Affairs               718 Smyth Road                     Manchester          New Hampshire
NAS030    University of New Hampshire of the           Rear Hackett Hill Road             Manchester          New Hampshire
          University System of New Hampshire
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                                <C>                 <C>
NAS031    15 West Alice Realty, LLC                    15 West Alice Avenue               Hooksett            New Hampshire
NAS042    PFP Associates LP                            22 Bridge Street                   Concord             New Hampshire
NAS052    Reed P. Clark                                94 Stonehenge Road                 Londonderry         New Hampshire
NAS057    Town of Salem                                20-26 Howard Street                Salem               New Hampshire
NAS058    Shoreline Realty Corporation                 85 Range Road                      Windham             New Hampshire
NAS062    55 Congress Street Condominium Association   55 Congress Street                 Portsmouth          New Hampshire
NAS064    Sprague Energy Corp. and Coastal Cement      127 River Road                     Newington           New Hampshire
          Corporation
NAS073    George M. Kelly                              10 North Main Street               Rochester           New Hampshire
NAS076    James Andres, d/b/a Vertical Realty          Abby Sawyer Memorial Highway       Dover               New Hampshire
          Properties Company
NAS084    Michael J. McFadden, an individual doing     333 Borthwick Avenue               Portsmouth          New Hampshire
          business as MCF Communications
NAS101    S.O.N. Properties                            71 Sinclair Avenue                 Manchester          New Hampshire
NAS103    Richard Gilbert and Roberta Gilbert          26 Old Manchester Road             Candia              New Hampshire
NAS105    Michael J. O'Donnell and Elizabeth M.        39 Lane Road                       Raymond             New Hampshire
          O'Donnell
NAS107    Edward Moulton                               108 Main Street                    Raymond             New Hampshire
NAS109    M.S.E.A. Realty                              453-465 Route 125                  Brentwood           New Hampshire
NAS111    Seacoast Mills, Inc.                         136 Pine Street                    Brentwood           New Hampshire
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                                <C>                 <C>
NAS113    Berkshire Life Insurance Company             10 Chestnut Street                 Exeter              New Hampshire
NAS115    Hampton Falls Properties, Ltd.               Intersection of Route 88           Hampton Falls       New Hampshire
                                                       and I-95
NAS122    Freedom Park Associates                      10 Beacon Hill Road                Derry               New Hampshire
NAS124    Freedom Park Associates                      Jacks Bridge Road                  Londonderry         New Hampshire
NAS143    Pennichuck Water Works, Inc.                 Al Paul Lane                       Merrimack           New Hampshire
NAS144    Surfsong Properties, Inc.                    160 Industrial Drive               Merrimack           New Hampshire
NAS146    Columbia Realty, LLC                         14 Columbia Circle                 Merrimack           New Hampshire
NAS148    S&T Realty, LLC                              33 Elm Street                      Merrimack           New Hampshire
NAS149    One Line Realty Development, LLC             768 Daniel Webster Highway         Merrimack           New Hampshire
NAS153    Hans D. Sassenberg and Christine Sassenberg  13 Dow Road                        Bow                 New Hampshire
NAS154    Marcia Gintzler                              4 Northeast Ave.                   Bow                 New Hampshire
NAS171    Airspace Corporation
NAS172    Sagamore Hampton Golf Club                   101 North Road                     North Hampton       New Hampshire
NAS182    Greek Orthodox Church of the Annunciation    Dover                              Strafford County    New Hampshire
NAS199    Tamkor Realty Trust                          15 Constitution Drive              Bedford             New Hampshire
WOR007    Edwidge Development Trust                    44 Byron Street                    Worcester           Massachusetts
WOR009    Stratton Hill Park Associates                161 Mountain Street West           Worcester           Massachusetts
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                                <C>                 <C>
WOR010    Town of Holden                               Avery Heights Drive                Holden              Massachusetts
WOR011    Lincoln Street Realty Company                52 Pleasant Valley Drive           Worcester           Massachusetts
WOR012    Kingdom Communications, LLC                  597 Southbridge Street             Auburn              Massachusetts
WOR013    Ladner Bruso, Inc.                           1017 Southbridge Street            Worcester           Massachusetts
WOR014    Kingdom Communications, LLC                  194 Granite Street Rear            Worcester           Massachusetts
WOR016    Osgood Bradley Building Corporation          18 Grafton Street                  Worcester           Massachusetts
WOR017    Worcester Housing Authority                  425 Pleasant Street                Worcester           Massachusetts
WOR018    AAT Communications Corporation               39 First Street                    Worcester           Massachusetts
WOR019    Worcester Housing Authority                  11 Lake Avenue                     Worcester           Massachusetts
WOR030    Milford Water Company                        rear Central Street off Frank      Milford             Massachusetts
                                                       Street
WOR032    R&D Realty Trust, LLP                        25 Brigham Street                  Westborough         Massachusetts
WOR081    American Tower Systems, L.P.(2)              100 Highland Street                Milford             Massachusetts
WOR118    Omnipoint Communications MB Operations, LLC  800 Boston Turnpike                Shrewsbury          Massachusetts
WOR119    K&D Trust                                    360 Southwest Cutoff               Northborough        Massachusetts
WOR120    Joycor, Inc.                                 91 Turnpike Road                   Westborough         Massachusetts
WOR145    Mekontrol, Inc.                              63 Hudson Street                   Northborough        Massachusetts
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                          <C>                                <C>                 <C>
WOR152    John Christian Kristoff                      Greenland Road                     Sterling            Massachusetts
WOR187    Fox Bus Lines, Inc.                          3 Silver Fox Road                  Millbury            Massachusetts
WOR191    Zane H. Arnold and E. Evelyn Arnold          15 Spring Road                     Westborough         Massachusetts
WOR196    Central New England Sports Center, Inc.      119 Colburn Street                 Northborough        Massachusetts
</TABLE>

<TABLE>
<CAPTION>
New Orleans
Site ID   Landlord Name                                Site Address
<S>       <C>                                          <C>                                <C>                 <C>
BRG061    Pinnacle Towers, Inc.                        5550 Mancusco Lane                 East Baton Rouge    Louisiana
BRG067    The Baton Rouge Water Company                5424 Highland                      Baton Rouge         Louisiana
BRG070    Woman's Hospital Foundation                  9000 Airline Highway               Baton Rouge         Louisiana
BRG073    The Baton Rouge Water Company                7912 Bluebonnet                    Baton Rouge         Louisiana
BRG078    Greater Baton Rouge Port Commission          Tower Road                         Baton Rouge         Louisiana
BRG079    Pinnacle Towers, Inc.                        3116 College Avenue                Baton Rouge         Louisiana
BRG117    BellSouth Telecommunications, Inc.           566 Lobdell Avenue                 Baton Rouge         Louisiana
BRG136    Pinnacle Towers, Inc.                        I-10 and Highway 74                Ascension Parish    Louisiana
BRG138    Pinnacle Towers, Inc.                        103 Dort Street                    East Baton Rouge    Louisiana
BRG139    The Baton Rouge Water Company                11755 Cloverland                   Baton Rouge         Louisiana
BRG141    Joseph M. Stablier and Dorothy Miller        14407 Highway 44                   Ascension           Louisiana
          Stablier
BRG141    Starmount Towers, LLC                        North Bryan at Airline             Gonzales            Louisiana
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                               <C>                                <C>                 <C>
BRG142    W. Benjamin Valentine, Jody Myers Valentine,      East Side of Highway 61, .04 mi    Ascension Parish    Louisiana
          W.J. Cointmat, Ruby Carlile Cointmat, Wayne       south of State Road
          Louis Alexander and Evelyn Buynum Alexander
BRG143    PrimeCo Personal Communications, L.P.             11752 Highland Road                Baton Rouge         Louisiana
BRG151    Pinnacle Towers, Inc.                             Highway 22 and I-10                Ascension           Louisiana
BRG154    Pinnacle Towers, Inc.                             3920 LA 1-North West               West Baton Rouge    Louisiana
BRG158    Diversified Real Estate Inc.                      2355 Tecumseh Street               Baton Rouge         Louisiana
LAF172    Harold Lee Landry and Thelma Judice Landry        2600 West Willow Street            Scott               Louisiana
LAF173    Michael Ray Roberts and Vanessa Ann Jones         1708 North University Avenue       Lafayette           Louisiana
NOR004    Lifemark Hospitals of Louisiana, Inc. d/b/a       180 West Esplanade Avenue          Kenner              Louisiana
          Kenner Regional Medical Center
NOR007    The 2633 Napoleon Venture                         2633 Napoleon Avenue               New Orleans         Louisiana
NOR009    Fountainbleau Storage Associates                  4040 Tulane Avenue                 New Orleans         Louisiana
NOR013    Executive Plaza, Inc.                             10001 Lake Forest Boulevard        New Orleans         Louisiana
NOR015    Pinnacle Towers, Inc.                             1112 Ridgewood Drive               Metarie             Louisiana
NOR018    Pinnacle Towers, Inc.                             2725 Arts Street                   New Orleans         Louisiana
NOR020    Pinnacle Towers, Inc.                             1030 Distributors Row              Jefferson           Louisiana
NOR026    Christopher Homes d/b/a Christopher Inn           2110 Royal Street                  New Orleans         Louisiana
          Apartments
NOR027    Roman Catholic Church of Archdiocese of New       1000 Howard Avenue                 New Orleans         Louisiana
          Orleans
</TABLE>
<PAGE>

<TABLE>
<S>       <C>                                               <C>                                <C>                 <C>
NOR028    Mid City Electric Company, Inc. d/b/a M.C.        2609 Canal Street                  New Orleans         Louisiana
          Realty Companies
NOR030    Alice Schouest and Arthur J. Hebert and           718 Bataraia Boulevard             Marrero             Louisiana
          Thelma Doiron and Sherman Hebert
NOR030    Wynhoven Apartments                               4606 10th Street                   Marrero             Louisiana
NOR033    City of Gretna                                    2525 Belle Chasse Highway          Gretna              Louisiana
NOR034    Alli Investments, LLC                             5148 Taravelle Road                Marrero             Louisiana
NOR036    Lake Marina Tower Condominium Association,        300 Lake Marina Avenue             New Orleans         Louisiana
          Inc.
NOR040    Sixty-Three Twenty-Four Chef Menteur              6324 Chef Menteur Highway          New Orleans         Louisiana
          Highway, LLC d/b/a Ramada Inn Highrise
NOR041    Canal 66 Partnership d/b/a Doubletree Hotel       300 Canal Street                   New Orleans         Louisiana
NOR042    Regions Bank                                      2026 St. Charles Avenue            New Orleans         Louisiana
NOR043    Doctors Hospital of Jefferson                     4320 Houma Boulevard               Metairie            Louisiana
NOR045    Tupelo Street Ventures, Inc.                      3228 Patterson Street              New Orleans         Louisiana
NOR047    123 Walnut Condominium Association, Inc.          123 Walnut Street                  New Orleans         Louisiana
NOR048    Radio Towers Rental, Inc.                         5284 West Airline Highway          Garyville           Louisiana
NOR095    Tenet HealthSystem Hospitals, Inc., d/b/a         3700 St. Charles Avenue            New Orleans         Louisiana
          St. Charles General Hospital
NOR102    Pinnacle Towers, Inc.                             Gramercy I-10 and LA Highway 641   Gramercy            Louisiana
NOR103    Greater New Orleans Expressway Commission         Causeway Bridge, Milemark 9, Lake  Metairie            Louisiana
                                                            Pontchartrain
</TABLE>
<PAGE>

SCHEDULE 3.06

                      Litigation and Environmental Matters


1.  Gerald T. Vento, in his capacity as Chief Executive Officer of TeleCorp
Holding Corp., Inc., received a letter from Mark A. Pelson, dated February 26,
1998, asserting an equity interest in TeleCorp Holding Corp., Inc. and its
affiliates.  TeleCorp Holding Corp., Inc. responded with a detailed letter sent
by its counsel, Steven W. Kasten at McDermott, Will & Emery, denying Mr.
Pelson's right to any equity interest in TeleCorp Holding Corp., Inc. or its
affiliates.  Mr. Pelson's counsel responded to Mr. Kasten's letter and
reiterated Mr. Pelson's demand.  Mr. Kasten is preparing a further detailed
denial.  No further action has been taken by either party at this time.

2.  The United States Department of Justice issued a Civil Investigative Demand
to TeleCorp Holding Corp., Inc. on April 25, 1997 regarding a possible violation
of Section 1 of the Sherman Act (15 U.S.C. (S)1).  TeleCorp Holding Corp., Inc.
produced all materials and answered all interrogatories set forth in the demand
on June 26, 1997.  No further action has been taken by either party at this
time.
<PAGE>

                                                                   SCHEDULE 3.12

                   Ownership of Borrower and its Subsidiaries

1.  TeleCorp PCS, Inc. (the "Borrower")'s Subsidiaries

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------
                                                  Number of Shares                % of
Name of Subsidiary                              Owned by the Borrower         Capital Stock
- ---------------------------------------------------------------------------------------------
<S>                                           <C>                             <C>
(a)  TeleCorp Holding Corp, Inc.              One hundred (100) shares                    100%
- ---------------------------------------------------------------------------------------------
(b)  TeleCorp Communications, Inc.            One hundred (100) shares                    100%
- ---------------------------------------------------------------------------------------------
(c)  TeleCorp PCS, LLC                        The Borrower is the sole
                                              member of TeleCorp PCS, LLC.
- ---------------------------------------------------------------------------------------------
</TABLE>

2.  TeleCorp Communications, Inc.'s Subsidiaries

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------
                                              Number of Shares Owned by           % of
Name of Subsidiary                          TeleCorp Communications, Inc.     Capital Stock
- ---------------------------------------------------------------------------------------------
<S>                                         <C>                               <C>
(a)  TeleCorp Limited Holdings, Inc.        One hundred (100) shares                    100%
- ---------------------------------------------------------------------------------------------
(b)  TeleCorp Realty Holdings, Inc.         One hundred (100) shares                    100%
- ---------------------------------------------------------------------------------------------
</TABLE>

3.  Ownership of TeleCorp Equipment Leasing L.P.

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------
                                            Number of Shares of TeleCorp          % of
Name of Owner of Its Shares                    Equipment Leasing, L.P.        Capital Stock
- ---------------------------------------------------------------------------------------------
<S>                                         <C>                               <C>
(a)  TeleCorp Limited Holdings, Inc.           Ninety-nine (99) units                    99%
- ---------------------------------------------------------------------------------------------
(b)  TeleCorp Communications, Inc.                  One (1) unit                          1%
- ---------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

                                                                               2

4.  Ownership of TeleCorp Realty, LLC

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------
                                            Number of Shares of TeleCorp          % of
Name of Owner of Its Shares                    Equipment Leasing, L.P.         Capital Stock
- ---------------------------------------------------------------------------------------------
<S>                                        <C>                                 <C>
(a)  TeleCorp Communications Inc.              Ninety-nine (99) units                  99%
- ---------------------------------------------------------------------------------------------
(b)  TeleCorp Realty Holdings, Inc.               One (1) unit                          1%
- ---------------------------------------------------------------------------------------------
</TABLE>

          All of the foregoing entities are Loan Parties.

          The Capital Stock of the Borrower is owned as set forth on the
following page.
<PAGE>

                                                                   SCHEDULE 3.14

                             Network Area/Licenses

Part A - Licenses contributed by AW pursuant to the Securities Purchase
- -----------------------------------------------------------------------
Agreement
- ---------

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------
Market Number               Frequency Block           License Description               Pops
- -----------------------------------------------------------------------------------------------------
<S>                         <C>                       <C>                               <C>
    M008                           A                 Boston-Providence/1/                   1,771,875
                                                                       -
- -----------------------------------------------------------------------------------------------------
    M019                           A                      St. Louis/1/                      1,615,987
- -----------------------------------------------------------------------------------------------------
    M026                           A              Louisville-Lexington-Evansville/1/          721,941
- -----------------------------------------------------------------------------------------------------
    M040                           A                      Little Rock                       2,051,667
- -----------------------------------------------------------------------------------------------------
    M028                           B                   Memphis-Jackson/1/                   1,832,770
- -----------------------------------------------------------------------------------------------------
</TABLE>


Part B - Licenses held by THC
- -----------------------------

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------
Market Number               Frequency Block           License Description               Pops
- -----------------------------------------------------------------------------------------------------
<S>                         <C>                    <C>                                  <C>
     B034                          F               Beaumont-Port Arthur, TX                   432,129
- -----------------------------------------------------------------------------------------------------
     B257                          F                    Little Rock, AR                       852,026
- -----------------------------------------------------------------------------------------------------
     B290                          F                      Memphis, TN                       1,396,390
- -----------------------------------------------------------------------------------------------------
     B320                          F                    New Orleans, LA                     1,367,169
- -----------------------------------------------------------------------------------------------------
</TABLE>

     /1/ Contribution includes only a portion of the geographic area in the
      -
referenced market as detailed in Schedule 2.1 to the Securities Purchase
Agreement. Pops are based on the portion of the geographic area contributed.
<PAGE>

Part C - Licenses purchased from AW pursuant to the License Purchase Agreement
- ------------------------------------------------------------------------------
dated January 23, 1998
- ----------------------

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------
Market Number               Frequency Block           License Description               Pops
- -----------------------------------------------------------------------------------------------------
<S>                         <C>                       <C>                               <C>
     B032                          D                    Baton Rouge, LA                       623,657
- -----------------------------------------------------------------------------------------------------
     B236                          D                 Lafayette-New Iberia                     496,579
- -----------------------------------------------------------------------------------------------------
     B320                          D                    New Orleans, LA                     1,367,169
- -----------------------------------------------------------------------------------------------------
</TABLE>


Part D - San Juan Acquisition License
- -------------------------------------

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------
Market Number               Frequency Block           License Description               Pops
- -----------------------------------------------------------------------------------------------------
<S>                         <C>                    <C>                                  <C>
     M025                          A               Puerto Rico - U.S. Virgin                3,623,846
                                                            Islands
- -----------------------------------------------------------------------------------------------------
</TABLE>


Part E - LMDS Merger Licenses
- -----------------------------

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------
Market Number
                            Frequency Block           License Description               Pops
- -----------------------------------------------------------------------------------------------------
<S>                         <C>                    <C>                                  <C>
      BTA032                       B               Baton Rouge, LA                            623,657
- -----------------------------------------------------------------------------------------------------
      BTA034                       B               Beaumont-Port Arthur, TX                   432,129
- -----------------------------------------------------------------------------------------------------
      BTA257                       A                    Little Rock, AR                       852,026
- -----------------------------------------------------------------------------------------------------
      BTA320                       B                    New Orleans, LA                     1,367,169
- -----------------------------------------------------------------------------------------------------
      BTA488                       B                     San Juan, PR                       2,170,246
- -----------------------------------------------------------------------------------------------------
      BTA489                       B               Mayaguez-Aquadilla-Ponce,                1,351,600
                                                              PR
- -----------------------------------------------------------------------------------------------------
      BTA491                       B                  U.S. Virgin Islands                     102,000
- -----------------------------------------------------------------------------------------------------
</TABLE>


Part F - Mercury Acquisition Licenses
- -------------------------------------

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------
Market Number               Frequency Block           License Description               Pops
- -----------------------------------------------------------------------------------------------------
<S>                         <C>                    <C>                                  <C>
       B032                        F                    Baton Rouge, LA                       623,657
- -----------------------------------------------------------------------------------------------------
       B180                        F                      Hammond, LA                          95,583
- -----------------------------------------------------------------------------------------------------
       B195                        F                 Houma-Thibodeaux, LA                     263,681
- -----------------------------------------------------------------------------------------------------
       B236                        F               Lafayette-New Iberia, LA                   496,579
- -----------------------------------------------------------------------------------------------------
</TABLE>


Part G - San Diego Merger License
- ---------------------------------

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------
Market Number               Frequency Block           License Description               Pops
- -----------------------------------------------------------------------------------------------------
<S>                         <C>                       <C>                               <C>
      B402                         F                     San Diego, CA                      2,498,016
- -----------------------------------------------------------------------------------------------------
</TABLE>


Part H Wireless 2000 Licenses
- -----------------------------

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------
Market Number               Frequency Block           License Description               Pops
- -----------------------------------------------------------------------------------------------------
<S>                         <C>                       <C>                          <C>
     B009                          C                    Alexandria, LA                        280,133
- -----------------------------------------------------------------------------------------------------
     B238                          C                    Lake Charles, LA                      259,425
- -----------------------------------------------------------------------------------------------------
     B304                          C                      Monroe, LA                          324,397
- -----------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

                                                                   SCHEDULE 3.18

                                   Insurance

          Both TeleCorp PCS, Inc. and TeleCorp Holding Corp., Inc. are insured
by Travelers Property Casualty and The Phoenix Insurance Company (through B.F.
Saul Insurance Agency) as follows:


<TABLE>
<CAPTION>
Type of Insurance            Policy No.                Coverage Amount                    Deductible
- -----------------            ----------                ---------------                    ----------
<S>                          <C>                       <C>                                <C>
General Liability            P-630-959K3748-TIL-       $2,000,000 general aggregate       None
                                                       limit; $1,000,000 each occurrence
                                                       limit

Automobile Liability         P-810-959K375A-TIL-       $1,000,000 each accident           $500

Excess Liability             PSM-CUP-959K3761-TI       $5,000,000 general aggregate       None
                                                       limit; $5,000,000 each occurrence
                                                       limit

Workers Compensation and
Employers Liability          PN-UB-959K365-6-98        $1,000,000 each accident

Special Form or All Rate
Property                     P-630-959K3748-TIL        Varies by asset insured            Varies
</TABLE>
<PAGE>

                                                                   SCHEDULE 3.22


                              Mortgaged Property

Not applicable.
<PAGE>

                                                                   SCHEDULE 6.01


                             Existing Indebtedness
                             ---------------------


               FCC Debt of THC in an aggregate principal amount of approximately
$9,192,938.
<PAGE>

                                                                   SCHEDULE 6.02


                                Existing Liens


Liens of the FCC securing FCC Debt.
<PAGE>

                                                                SCHEDULE 6.05(b)

                                  Investments

                                     None.

<PAGE>

                                                                   SCHEDULE 6.10

                             Existing Restrictions

     The restrictions pursuant to Section 11.3 of the Note Purchase Agreement
dated as of May 11, 1998 between Lucent and the Borrower.
<PAGE>

                                                                       EXHIBIT A



                                   [Form of]

                           ASSIGNMENT AND ACCEPTANCE


     Reference is made to the Credit Agreement dated as of July 17, 1998 (the
"Credit Agreement"), among Telecorp PCS, Inc., a Delaware corporation (the
"Borrower"), the lenders party thereto (the "Lenders") and The Chase Manhattan
Bank, as administrative agent for the Lenders (in such capacity, the
"Administrative Agent") and collateral agent.  Terms defined in the Credit
Agreement are used herein with the same meanings.

     1.  The assignor whose full legal name is set forth below (the "Assignor")
hereby sells and assigns, without recourse, to the assignee whose full legal
name is set forth below (the "Assignee"), and the Assignee hereby purchases and
assumes, without recourse, from the Assignor, effective as of the Effective Date
set forth below (but not prior to the registration of the information contained
herein in the Register pursuant to Section 9.04(d) of the Credit Agreement), the
interests set forth below (the "Assigned Interest") in the Assignor's rights and
obligations under the Credit Agreement and the other Loan Documents, including,
without limitation, the amounts and percentages set forth below of (i) the
Commitments of the Assignor on the  Assignment Date, (ii) the Loans owing to the
Assignor which are outstanding on the Assignment Date and (iii) participation in
Letters of Credit.  From and after the Assignment Date (i) the Assignee shall be
a party to and be bound by the provisions of the Credit Agreement and, to the
extent of the interests assigned by this Assignment and Acceptance, have the
rights and obligations of a Lender thereunder and under the Loan Documents and
(ii) the Assignor shall, to the extent of the interests assigned by this
Assignment and Acceptance, relinquish its rights and be released from its
obligations under the Credit Agreement.

     2.  This Assignment and Acceptance is being delivered to the Administrative
Agent together with (i) if the Assignee is a Foreign Lender, the forms specified
in Section 2.15(e) of the Credit Agreement, duly completed and executed by such
Assignee, (ii) if the Assignee is not already a Lender under the Credit
Agreement, an Administrative Questionnaire duly completed by the Assignee.
<PAGE>

     3.  This Assignment and Acceptance shall be governed by and construed in
accordance with the laws of the State of New York.


Date of Assignment:

Legal Name of Assignor:

Legal Name of Assignee:

Assignee's Address for Notices:



Effective Date of Assignment ("Assignment Date")
<PAGE>

                                                                               3

<TABLE>
<CAPTION>

                                                               Percentage Assigned of
                                                           Applicable Facility/Commitment
                                                             (set forth, to at least 8
                                                          decimals, as a percentage of the
                                                             Facility and the aggregate
                                                             Commitments of all Lenders
Facility/Commitment          Principal Amount Assigned              thereunder)
- --------------------------  ---------------------------             -----------
<S>                         <C>                           <C>
Revolving Credit            $                                              %

Tranche A                   $                                              %

Tranche B                   $                                              %

                                             The terms set forth above are hereby agreed to:

                                             __________________,                     as
     Assignor,


                                             By_____________________________
                                                Name:
                                                Title:

                                             __________________,                     as
     Assignee,


                                             By____________________________
                                                Name:
                                                Title:
</TABLE>
<PAGE>

                                                                               4

The undersigned hereby consent
to the above assignment **/
                        --


TELECORP PCS, INC.,              THE CHASE MANHATTAN BANK, as Administrative
                                   Agent,

By___________________________    By______________________
  Name:                            Name:
  Title:                           Title:

THE CHASE MANHATTAN BANK,
 as Issuing Bank,

By___________________________
  Name:
  Title:


_____________________
**/ To be completed to the extent consents are required under Section 9.04(b) of
- --
the Credit Agreement.
<PAGE>

                                                                     EXHIBIT B-3



                                [Letterhead of]

                                 Local Counsel


                                                                  July    , 1998


The Chase Manhattan Bank,
as Administrative Agent, Issuing Bank and Collateral Agent
270 Park Avenue
New York, NY  10017

TD Securities (USA) Inc.,
as Syndication Agent
31 West 52nd Street
New York, NY 10019-6101

Bankers Trust Company,
as Documentation Agent
130 Liberty Street
New York, NY 10006

Chase Securities Inc.,
Toronto Domininion Securities (USA) Inc.
BT Alex. Brown Incorporated,
as Arrangers
c/o Chase Securities Inc.
270 Park Avenue
New York, NY  10017

The Lenders party to the Credit
Agreement referred to below (all of
the Addressees, collectively, the
"Creditors")

Ladies and Gentlemen:

     We have acted as special counsel in the State of [      ] (the "State") to
Telecorp PCS Inc., a Delaware corporation (the "Borrower"), and each of the
subsidiaries of the Borrower listed on the attached Schedule A (the
"Subsidiaries"), in connection with the execution and delivery today of, and the
consummation of the transactions contemplated by, the Credit Agreement dated as
of July   , 1998 (the "Credit Agreement"), among the Borrower, the financial
institutions party thereto as lenders (the "Lenders") and The Chase Manhattan
Bank, as
<PAGE>

administrative agent (in such capacity, the "Administrative Agent") and as
collateral agent (in such capacity, the "Collateral Agent"). This opinion is
delivered pursuant to Section 4.02(b) of the Credit Agreement. Capitalized terms
used but not defined herein shall have the meanings assigned to such terms in
the Credit Agreement.

     In connection with this opinion, we have examined originals or copies,
certified or otherwise identified to our satisfaction, of the following
documents (collectively, the "Documents"):

          (a) the Credit Agreement;

          (b) the Guarantee Agreement;

          (c) the Security Agreement;

          (d) the Pledge Agreement;

          (e) the Indemnity, Subrogation and Contribution Agreement;

          (f) the Mortgages;

          (g) UCC-1 financing statements, copies of which are attached hereto as
     Exhibit A (the "Financing Statements"); and

          (h) the Assignment of Rights.

     In addition, we have examined originals or copies, certified or otherwise
identified to our satisfaction, of such records, agreements, instruments and
other documents, and have made such other investigations, as we have deemed
necessary for the purpose of this opinion.

     References in this opinion to the "UCC" shall mean the Uniform Commercial
Code as in effect on the date hereof in the State.

     In rendering this opinion to you, we have assumed that:

          (a) there has occurred due execution and delivery of the Documents;
     and

          (b) except as otherwise set forth in the applicable Security
     Documents, the Borrower and each Guarantor, as applicable, owns the
     Mortgaged Property (as defined in [the] [each] Mortgage) and the Collateral
     (as defined in the Security Agreement and the Pledge Agreement).
<PAGE>

                                                                               3

     Subject to the foregoing assumptions, we are of the opinion that:

     1.  None of the Collateral Agent or the other Creditors is required (a) to
be qualified to do business, file any designation for service of process or file
any reports or pay any taxes in the State, or (b) to comply with any statutory
or regulatory requirement applicable only to financial institutions chartered or
qualified or required to be chartered or qualified to do business in the State,
in each case by reason of the execution and delivery or filing or recording, as
applicable, of any of the Documents, or by reason of the participation in any of
the transactions under or contemplated by the Documents, including, without
limitation, the extension of any credit contemplated thereby, the making and
receipt of payments pursuant thereto and the exercise of any remedy thereunder.
If it were determined that such qualification and filing were required, the
validity of the Documents would not be affected thereby, but (a) if the
Collateral Agent were not qualified it would be precluded from enforcing its
rights as collateral agent on behalf of the Creditors in the courts of the State
until such time as it is admitted to transact business in the State or (b)
assuming the Creditors would institute remedies without the Collateral Agent,
they would be precluded from enforcing their rights in the courts of the State
until such time as they were admitted to transact business in the State.
However, the lack of qualification would not result in any waiver of rights or
remedies pending such qualification.

     2.  The execution, delivery, filing or recording, as applicable, and
performance by the Borrower and each Guarantor of each of the Documents to which
each of them is a party (i) will not violate any existing law, governmental rule
or regulation of the State and (ii) do not require any license, permit,
authorization, consent or other approval of, any exemption by, or any
registration, recording or filing with any court, administrative agency or other
Governmental Authority of the State.

     3.  Assuming that the Security Agreement and the Pledge Agreement were
governed by the law of the State for the purpose of rendering the opinion set
forth in this paragraph, each of the Security Agreement and the Pledge Agreement
is in proper form under the applicable laws of the State to (i) be enforceable
against the grantors or pledgors named therein in accordance with its terms and
(ii) create and constitute a
<PAGE>

                                                                               4

valid security interest in, lien on or pledge of the Collateral.

     4.  The Mortgage[s] [is] [are] in proper form under applicable laws of the
State (a)(i) to be accepted for recording by the Recorder of            [and
] County [Counties] and (ii) to be enforceable against the Borrower and each
Guarantor, as applicable, in accordance with [its] [their] terms, and (b)(i) to
create and constitute valid, legal, binding and enforceable mortgage lien[s] on
the real property described therein (the "Real Property"), (ii) to create and
constitute valid, legal, binding and enforceable perfected security interests in
such of the Mortgaged Property (the "UCC Property") as is subject to the
provisions of Article 9 of the UCC, and (iii) to create and constitute valid,
legal, binding and enforceable perfected common law liens on or pledges of such
of the Mortgaged Property as is not UCC Property or Real Property (such
property, together with the UCC Property, the "Personal Property").

     5.  The Financing Statements relating to the Mortgage[s] (a) are in proper
form under the applicable laws of the State for filing, (b) adequately identify
the collateral described therein to provide sufficient notice to third parties
of the security interest referenced therein and (c) are required to be filed
with the Office of the Secretary of State of the State and with the Recorder of
[and           ] County [Counties].  The Financing Statements relating to the
Security Agreement (a) are in proper form under the applicable laws of the State
for filing, (b) adequately identify the collateral described therein to provide
sufficient notice to third parties of the security interest referenced therein
and (c) are required to be filed with the Office of the Secretary of State of
the State and with the Recorder of            [and               ] County
[Counties].  Upon the filing of the Financing Statements, the Collateral Agent
for the benefit of the Creditors will have a valid and duly perfected security
interest in and lien on the Personal Property and Collateral (including after-
acquired property) described in the Mortgage[s] and the Security Agreement,
respectively.

     6.  The recording of the Mortgage[s] and the filing of the Financing
Statements with the recorders and in the offices described above are the only
actions, recordings or filings necessary to publish notice and protect the
validity of and to establish of record the rights of the parties under the
Mortgage[s] and Security Agreement, except (i) that
<PAGE>

                                                                               5

continuation statements under the UCC are required to be filed within six months
prior to the expiration of five years from the date of filing of the Financing
Statements, and (ii) that a security interest in or pledge of money or
instruments, other than money or instruments constituting chattel paper, cannot
be perfected by filing Financing Statements or recording a Mortgage, but must be
perfected by taking physical possession thereof.

     7.  Subject to appropriate continuation or perfection under the UCC as set
forth the preceding paragraph, the priority of the security interest in, lien on
or pledge of the Collateral created by the Security Agreement and the Pledge
Agreement with respect to any extension of credit (each, a "Further Advance")
made or deemed to have been made by the Creditors after the date (the
"Perfection Date") on which the security interest in, lien on or pledge of the
Collateral shall have been perfected will be the same as the priority of the
security interest, lien on or pledge of the Collateral with respect to all
extensions of credit made or deemed to have been made by the Creditors on or
before the Perfection Date, and such priority will not be affected by the rights
in and to the Collateral of any third party whose interest in the Collateral
attached thereto after the Perfection Date but prior to the date of such Further
Advance.

     8.  The Collateral Agent has the power without naming all the Creditors in
any applicable legal proceeding to exercise remedies under the Security
Documents for the realization of any of the Mortgaged Property or the Collateral
in its own name, as collateral agent.

     9.  No taxes or other charges, including, without limitation, intangible or
documentary stamp taxes, mortgage or recording taxes, transfer taxes or similar
charges, are payable to the State or to any jurisdiction therein on account of
the execution or delivery or recording or filing of the Mortgage[s] or any of
the other Documents or the creation of the indebtedness evidenced or secured by
any of the Documents, as applicable, except for nominal filing or recording
fees.

     [In the event that an intangible tax would be required to be paid in
connection with any of the transactions described in the preceding paragraph,
please describe with specificity in the context of this transaction, and the
collateral to be secured in your State, (a) the nature of the tax, (b) how and
when it is paid, (c) how it is calculated, (d) what forms or
<PAGE>

                                                                               6

other documentation would be required, and (e) any other information that would
be necessary or useful in order for the Borrower or any Guarantor to comply with
the payment of such tax. In the event that an intangible tax would not be
required to be paid, please specify that the intangible tax is inapplicable and
the basis for such conclusion.]

     10.  The transfer of all or any portion of the Mortgaged Property in
connection with the exercise of any remedy under the Mortgage[s], including,
without limitation, by way of judicial foreclosure, will not restrict, affect or
impair the liability of the Borrower and the other Loan Parties with respect to
the indebtedness secured thereby or the mortgagee's rights or remedies relating
thereto, including the foreclosure or enforcement of any other security interest
or liens securing such indebtedness, and the laws of the State do not require a
lienholder to elect to pursue its remedies either against mortgaged real
property or personal property where such lienholder holds security interests and
liens on both real and personal property of a debtor.

     11.  A State court or a federal court applying the choice of laws
principles prevailing under the laws of the State to which the question is
presented will give effect to the provisions in the Documents selecting the laws
of the State of New York as the governing law thereof (except as therein
provided) and will apply such laws, rather than the laws of the State, to the
construction and application thereof.

     12.  Assuming that the Documents were governed by the law of the State for
the purpose of rendering the opinion set forth in this paragraph, (a) none of
the provisions of the Documents will violate any law, statute or regulation of
the State relating to usury and (b) the use of counterpart copies of any of the
Documents does not affect the enforceability of any of the Documents.

     We are admitted to practice in the State.  We express no opinion as to
matters under or involving the laws of any jurisdiction other than laws of the
United States and the State and its political subdivisions.

     This opinion may be relied upon by each of you, by any successors and
assigns of the Administrative Agent or the Collateral Agent, and any
participant, assignee or successor to the interests of the Lenders under the
Loan Documents.
<PAGE>

                                                                               7

                                              Very truly yours,
<PAGE>

                                                                       EXHIBIT C

                    GUARANTEE AGREEMENT dated as of July   , 1998, among each of
               the subsidiaries listed on Schedule I hereto (each such
               subsidiary individually, a "Guarantor" and, collectively, the
               "Guarantors") of Telecorp PCS, Inc., a Delaware corporation (the
               "Borrower"), and THE CHASE MANHATTAN BANK, a Delaware
               corporation, as collateral agent (the "Collateral Agent") for the
               Secured Parties (as defined in the Credit Agreement referred to
               below).


     Reference is made to the Credit Agreement dated as of July 17, 1998 (as
amended, supplemented or otherwise modified from time to time, the "Credit
Agreement"), among the Borrower, the lenders from time to time party thereto
(the "Lenders") and The Chase Manhattan Bank, as Administrative Agent, Issuing
Bank and Collateral Agent.  Capitalized terms used herein and not defined herein
shall have the meanings assigned to such terms in the Credit Agreement.

     The Lenders have agreed to make Loans to the Borrower and the Issuing Bank
has agreed to issue Letters of Credit for the account of the Borrower pursuant
to, and upon the terms and subject to the conditions specified in, the Credit
Agreement.  Each of the Guarantors is a direct or indirect wholly owned
Subsidiary of the Borrower and acknowledges that it will derive substantial
benefit from the making of the Loans by the Lenders.  The obligations of the
Lenders to make Loans and of the Issuing Bank to issue Letters of Credit are
conditioned on, among other things, the execution and delivery by the Guarantors
of a Guarantee Agreement in the form hereof.  As consideration therefor and in
order to induce the Lenders to make Loans and the Issuing Banks to issue Letters
of Credit, the Guarantors are willing to execute this Agreement.

     Accordingly, the parties hereto agree as follows:
<PAGE>

                                                                               2

     SECTION 1.  Guarantee.  Each Guarantor unconditionally guarantees, jointly
with the other Guarantors and severally, as a primary obligor and not merely as
a surety, (a) the due and punctual payment of (i) the principal of and premium,
if any, and interest (including interest accruing during the pendency of any
bankruptcy, insolvency, receivership or other similar proceeding, regardless of
whether allowed or allowable in such proceeding) on the Loans, when and as due,
whether at maturity, by acceleration, upon one or more dates set for prepayment
or otherwise, and (ii) all other monetary obligations, including fees, costs,
expenses and indemnities, whether primary, secondary, direct, contingent, fixed
or otherwise (including monetary obligations incurred during the pendency of any
bankruptcy, insolvency, receivership or other similar proceeding, regardless of
whether allowed or allowable in such proceeding), of the Loan Parities to the
Secured Parties under the Credit Agreement and the other Loan Documents, (b) the
due and punctual performance of all covenants, agreements, obligations and
liabilities of the Loan Parties under or pursuant to the Credit Agreement and
the other Loan Documents and (c) unless otherwise agreed upon in writing by the
applicable Lender party thereto, all obligations of the Borrower, monetary or
otherwise, under each Interest Rate Protection Agreement entered into with a
counterparty that was a Lender or an Affiliate of a Lender at the time such
Interest Rate Protection Agreement was entered into (all the monetary and other
obligations referred to in the preceding clauses (a) through (c) being
collectively called the "Obligations").  Each Guarantor further agrees that the
Obligations may be extended or renewed, in whole or in part, without notice to
or further assent from it, and that it will remain bound upon its guarantee
notwithstanding any extension or renewal of any Obligation.

     Anything contained in this Agreement to the contrary notwithstanding, the
obligations of each Guarantor hereunder shall be limited to a maximum aggregate
amount equal to the greatest amount that would not render such Guarantor's
obligations hereunder subject to avoidance as a fraudulent transfer or
conveyance under Section 548 of Title 11 of the United States Code or any
provisions of applicable state law (collectively, the "Fraudulent Transfer
Laws"), in each case after giving effect to all other liabilities of such
Guarantor, contingent or otherwise, that are relevant under the Fraudulent
Transfer Laws (specifically excluding, however, any liabilities of such
Guarantor (a) in respect of intercompany indebtedness to the Borrower or
Affiliates of the Borrower to the extent that such indebtedness would be
discharged in an amount equal to the amount paid by such Guarantor hereunder and
(b) under any Guarantee of senior
<PAGE>

                                                                               3

unsecured indebtedness or Indebtedness subordinated in right of payment to the
Obligations which Guarantee contains a limitation as to maximum amount similar
to that set forth in this paragraph, pursuant to which the liability of such
Guarantor hereunder is included in the liabilities taken into account in
determining such maximum amount) and after giving effect as assets to the value
(as determined under the applicable provisions of the Fraudulent Transfer Laws)
of any rights to subrogation, contribution, reimbursement, indemnity or similar
rights of such Guarantor pursuant to (i) applicable law or (ii) any agreement
providing for an equitable allocation among such Guarantor and other Affiliates
of the Borrower of obligations arising under Guarantees by such parties
(including the Indemnity, Subrogation and Contribution Agreement).

     SECTION 2.  Obligations Not Waived.  To the fullest extent permitted by
applicable law, each Guarantor waives presentment to, demand of payment from and
protest to the Borrower of any of the Obligations, and also waives notice of
acceptance of its guarantee and notice of protest for nonpayment.

     SECTION 3.  Security.  Each of the Guarantors authorizes the Collateral
Agent and each of the other Secured Parties, to (a) take and hold, as provided
in the Security Agreement, security for the payment of this Guarantee and the
Obligations and exchange, enforce, waive and release any such security, (b)
apply such security and direct the order or manner of sale thereof as provided
in the Security Agreement and (c) release or substitute any one or more
endorsees, other guarantors of other obligors.

     SECTION 4.  Guarantee of Payment.  Each Guarantor further agrees that its
guarantee constitutes a guarantee of payment when due and not of collection, and
waives any right to require that any resort be had by the Collateral Agent or
any other Secured Party to any of the security held for payment of the
Obligations or to any balance of any deposit account or credit on the books of
the Collateral Agent or any other Secured Party in favor of the Borrower or any
other person.

     SECTION 5.  No Discharge or Diminishment of Guarantee.  The obligations of
each Guarantor hereunder shall not be subject to any reduction, limitation,
impairment or termination for any reason (other than the indefeasible payment in
full in cash of the Obligations), including any
<PAGE>

                                                                               4

claim of waiver, release, surrender, alteration or compromise of any of the
Obligations, and shall not be subject to any defense or setoff, counterclaim,
recoupment or termination whatsoever by reason of the invalidity, illegality or
unenforceability of the Obligations or otherwise. Without limiting the
generality of the foregoing, the obligations of each Guarantor hereunder shall
not be discharged or impaired or otherwise affected by the failure of the
Collateral Agent or any other Secured Party to assert any claim or demand or to
enforce any remedy under the Credit Agreement, any other Loan Document or any
other agreement, by any waiver or modification of any provision of any thereof,
by any default, failure or delay, wilful or otherwise, in the performance of the
Obligations, or the failure to perfect any security interest in, or the release
of, any of the security held by or on behalf of the Collateral Agent or any
other Secured Party, or by any other act or omission that may or might in any
manner or to any extent vary the risk of any Guarantor or that would otherwise
operate as a discharge of each Guarantor as a matter of law or equity (other
than the indefeasible payment in full in cash of all the Obligations).

     SECTION 6.  Defenses of Borrower Waived.  To the fullest extent permitted
by applicable law, each of the Guarantors waives any defense based on or arising
out of any defense of the Borrower or the unenforceability of the Obligations or
any part thereof from any cause, or the cessation from any cause of the
liability of the Borrower, other than the final and indefeasible payment in full
in cash of the Obligations.  The Collateral Agent and the other Secured Parties
may, at their election, foreclose on any security held by one or more of them by
one or more judicial or nonjudicial sales, accept an assignment of any such
security in lieu of foreclosure, compromise or adjust any part of the
Obligations, make any other accommodation with the Borrower or any other
guarantor or exercise any other right or remedy available to them against the
Borrower or any other guarantor, without affecting or impairing in any way the
liability of any Guarantor hereunder except to the extent the Obligations have
been fully, finally and indefeasibly paid in cash.

     SECTION 7.  Agreement to Pay; Subordination.  In furtherance of the
foregoing and not in limitation of any other right that the Collateral Agent or
any other Secured Party has at law or in equity against any Guarantor by virtue
hereof, upon the failure of the Borrower or any other Loan Party to pay any
Obligation when and as the same shall become
<PAGE>

                                                                               5

due, whether at maturity, by acceleration, after notice of prepayment or
otherwise, each Guarantor hereby promises to and will forthwith pay, or cause to
be paid, to the Collateral Agent or such other Secured Party as designated
thereby in cash the amount of such unpaid Obligations. Upon payment by any
Guarantor of any sums to the Collateral Agent or any Secured Party as provided
above, all rights of such Guarantor against the Borrower arising as a result
thereof by way of right of subrogation, contribution, reimbursement, indemnity
or otherwise shall in all respects be subordinate and junior in right of payment
to the prior indefeasible payment in full in cash of all the Obligations. In
addition, any indebtedness of the Borrower now or hereafter held by any
Guarantor is hereby subordinated in right of payment to the prior payment in
full of the Obligations during the existence of an Event of Default. If any
amount shall erroneously be paid to any Guarantor on account of (i) such
subrogation, contribution, reimbursement, indemnity or similar right or (ii) any
such indebtedness of the Borrower, such amount shall be held in trust for the
benefit of the Secured Parties and shall forthwith be paid to the Collateral
Agent to be credited against the payment of the Obligations, whether matured or
unmatured, in accordance with the terms of the Loan Documents.

     SECTION 8.  Information.  Each of the Guarantors assumes all responsibility
for being and keeping itself informed of the Borrower's financial condition and
assets, and of all other circumstances bearing upon the risk of nonpayment of
the Obligations and the nature, scope and extent of the risks that such
Guarantor assumes and incurs hereunder, and agrees that none of the Collateral
Agent or the other Secured Parties will have any duty to advise any of the
Guarantors of information known to it or any of them regarding such
circumstances or risks.

     SECTION 9.  Representations and Warranties.  Each of the Guarantors
represents and warrants as to itself that all representations and warranties
relating to it contained in the Credit Agreement are true and correct.

     SECTION 10.  Termination.  The Guarantees made hereunder (a) shall
terminate when all the Obligations have been indefeasibly paid in full and the
Lenders have no further commitment to lend under the Credit Agreement and (b)
shall continue to be effective or be reinstated, as the case may be, if at any
time payment, or any part thereof, of any Obligation is rescinded or must
otherwise be restored by any Secured
<PAGE>

                                                                               6

Party or any Guarantor upon the bankruptcy or reorganization of the Borrower,
any Guarantor or otherwise.

     SECTION 11.  Binding Effect; Several Agreement; Assignments.  Whenever in
this Agreement any of the parties hereto is referred to, such reference shall be
deemed to include the successors and assigns of such party; and all covenants,
promises and agreements by or on behalf of the Guarantors that are contained in
this Agreement shall bind and inure to the benefit of each party hereto and
their respective successors and assigns.  This Agreement shall become effective
as to any Guarantor when a counterpart hereof executed on behalf of such
Guarantor shall have been delivered to the Collateral Agent, and a counterpart
hereof shall have been executed on behalf of the Collateral Agent, and
thereafter shall be binding upon such Guarantor and the Collateral Agent and
their respective successors and assigns, and shall inure to the benefit of such
Guarantor, the Collateral Agent and the other Secured Parties, and their
respective successors and assigns, except that no Guarantor shall have the right
to assign its rights or obligations hereunder or any interest herein (and any
such attempted assignment shall be void).  If all of the capital stock of a
Guarantor is sold, transferred or otherwise disposed of to a person that is not
an Affiliate of the Borrower pursuant to a transaction permitted by Section 6.06
of the Credit Agreement, such Guarantor shall be released from its obligations
under this Agreement without further action.  This Agreement shall be construed
as a separate agreement with respect to each Guarantor and may be amended,
modified, supplemented, waived or released with respect to any Guarantor without
the approval of any other Guarantor and without affecting the obligations of any
other Guarantor hereunder.

     SECTION 12.  Waivers; Amendment.  (a)  No failure or delay of the
Collateral Agent in exercising any power or right hereunder shall operate as a
waiver thereof, nor shall any single or partial exercise of any such right or
power, or any abandonment or discontinuance of steps to enforce such a right or
power, preclude any other or further exercise thereof or the exercise of any
other right or power.  The rights and remedies of the Collateral Agent hereunder
and of the other Secured Parties under the other Loan Documents are cumulative
and are not exclusive of any rights or remedies that they would otherwise have.
No waiver of any provision of this Agreement or consent to any departure by any
Guarantor therefrom shall in any event be effective unless the same
<PAGE>

                                                                               7

shall be permitted by paragraph (b) below, and then such waiver or consent shall
be effective only in the specific instance and for the purpose for which given.
No notice or demand on any Guarantor in any case shall entitle such Guarantor to
any other or further notice or demand in similar or other circumstances.

     (b)  Neither this Agreement nor any provision hereof may be waived, amended
or modified except pursuant to a written agreement entered into between the
Guarantors with respect to which such waiver, amendment or modification relates
and the Collateral Agent, with the prior written consent of the Required Lenders
(except as otherwise provided in the Credit Agreement).

     SECTION 13.  GOVERNING LAW.  THIS AGREEMENT SHALL BE GOVERNED BY, AND
CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

     SECTION 14.  Notices.  All communications and notices hereunder shall be in
writing and given as provided in Section 9.01 of the Credit Agreement.  All
communications and notices hereunder to each Guarantor shall be given to it in
care of the Borrower at the address set forth in the Credit Agreement.

     SECTION 15.  Survival of Agreement; Severability.  (a)  All covenants,
agreements, representations and warranties made by the Guarantors herein and in
the certificates or other instruments prepared or delivered in connection with
or pursuant to this Agreement or any other Loan Document shall be considered to
have been relied upon by the Collateral Agent and the other Secured Parties and
shall survive the making by the Lenders of the Loans regardless of any
investigation made by the Secured Parties or on their behalf, and shall continue
in full force and effect as long as the principal of or any accrued interest on
any Loan or any other fee or amount payable under this Agreement or any other
Loan Document is outstanding and unpaid or the L/C Exposure does not equal zero
and as long as the Commitments and the L/C Commitment have not been terminated.

     (b)  In the event any one or more of the provisions contained in this
Agreement or in any other Loan Document should be held invalid, illegal or
unenforceable in any respect, the validity, legality and enforceability of the
<PAGE>

                                                                               8

remaining provisions contained herein and therein shall not in any way be
affected or impaired thereby (it being understood that the invalidity of a
particular provision in a particular jurisdiction shall not in and of itself
affect the validity of such provision in any other jurisdiction).  The parties
shall endeavor in good-faith negotiations to replace the invalid, illegal or
unenforceable provisions with valid provisions the economic effect of which
comes as close as possible to that of the invalid, illegal or unenforceable
provisions.

     SECTION 16.  Counterparts.  This Agreement may be executed in counterparts,
each of which shall constitute an original, but all of which when taken together
shall constitute a single contract, and shall become effective as provided in
Section 11.  Delivery of an executed signature page to this Agreement by
facsimile transmission shall be as effective as delivery of a manually executed
counterpart of this Agreement.

     SECTION 17.  Rules of Interpretation.  The rules of interpretation
specified in Section 1.03 of the Credit Agreement shall be applicable to this
Agreement.

     SECTION 18.  Jurisdiction; Consent to Service of Process.  (a) Each
Guarantor hereby irrevocably and unconditionally submits, for itself and its
property, to the nonexclusive jurisdiction of any New York State court or
Federal court of the United States of America sitting in New York City, and any
appellate court from any thereof, in any action or proceeding arising out of or
relating to this Agreement or the other Loan Documents, or for recognition or
enforcement of any judgment, and each of the parties hereto hereby irrevocably
and unconditionally agrees that all claims in respect of any such action or
proceeding may be heard and determined in such New York State or, to the extent
permitted by law, in such Federal court.  Each of the parties hereto agrees that
a final judgment in any such action or proceeding shall be conclusive and may be
enforced in other jurisdictions by suit on the judgment or in any other manner
provided by law.  Nothing in this Agreement shall affect any right that the
Collateral Agent or any other Secured Party may otherwise have to bring any
action or proceeding relating to this Agreement or the other Loan Documents
against any Guarantor or its properties in the courts of any jurisdiction.

     (b)  Each Guarantor hereby irrevocably and unconditionally waives, to the
fullest extent it may legally
<PAGE>

                                                                               9

and effectively do so, any objection that it may now or hereafter have to the
laying of venue of any suit, action or proceeding arising out of or relating to
this Agreement or the other Loan Documents in any New York State or Federal
court. Each of the parties hereto hereby irrevocably waives, to the fullest
extent permitted by law, the defense of an inconvenient forum to the maintenance
of such action or proceeding in any such court.

     (c)  Each party to this Agreement irrevocably consents to service of
process in the manner provided for notices in Section 14.  Nothing in this
Agreement will affect the right of any party to this Agreement to serve process
in any other manner permitted by law.

     SECTION 19.  WAIVER OF JURY TRIAL.  EACH PARTY HERETO HEREBY WAIVES, TO THE
FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY
JURY IN RESPECT OF ANY LITIGATION DIRECTLY OR INDIRECTLY ARISING OUT OF, UNDER
OR IN CONNECTION WITH THIS AGREEMENT OR THE OTHER LOAN DOCUMENTS.  EACH PARTY
HERETO (A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER
PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT,
IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B)
ACKNOWLEDGES THAT IT AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER
INTO THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS, AS APPLICABLE, BY, AMONG OTHER
THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 19.

     SECTION 20.  Additional Guarantors.  Pursuant to Section 5.12 of the Credit
Agreement, each Subsidiary Loan Party of the Borrower that was not in existence
or not a Subsidiary Loan Party on the date of the Credit Agreement is required
to enter into this Agreement as a Guarantor upon becoming a Subsidiary Loan
Party.  Upon execution and delivery after the date hereof by the Collateral
Agent and such a Subsidiary of an instrument in the form of Annex 1, such
Subsidiary Loan Party shall become a Guarantor hereunder with the same force and
effect as if originally named as a Guarantor herein.  The execution and delivery
of any instrument adding an additional Guarantor as a party to this Agreement
shall not require the consent of any other Guarantor hereunder.  The rights and
obligations of each Guarantor hereunder shall remain in full force and effect
notwithstanding the addition of any new Guarantor as a party to this Agreement.
<PAGE>

                                                                              10

     SECTION 21.  Right of Setoff.  If an Event of Default shall have occurred
and be continuing, each Secured Party is hereby authorized at any time and from
time to time, to the fullest extent permitted by law, to set off and apply any
and all deposits (general or special, time or demand, provisional or final) at
any time held and other Indebtedness at any time owing by such Secured Party to
or for the credit or the account of any Guarantor against any or all the
obligations of such Guarantor now or hereafter existing under this Agreement and
the other Loan Documents held by such Secured Party, irrespective of whether or
not such Secured Party shall have made any demand under this Agreement or any
other Loan Document and although such obligations may be unmatured.  After any
exercise of such right of setoff, the Secured Party shall give notice of such
exercise to the Administrative Agent and the Borrower; provided, however, that
                                                       --------  -------
failure to give such notice shall not in any way affect the rights of any
Secured Party.  The rights of each Secured Party under this Section 21 are in
addition to other rights and remedies (including other rights of setoff) which
such Secured Party may have.

     SECTION 22.  FCC Consent.  Notwithstanding anything herein which may be
construed to the contrary, no action shall be taken by any of the Collateral
Agent and the Secured Parties with respect to the Licenses or any license of the
Federal Communications Commission ("FCC") unless and until any required approval
under the Federal Communications Act of 1934, and any applicable rules and
regulations thereunder, requiring the consent to or approval of such action by
the FCC or any governmental or other authority, have been satisfied.



     IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement as
of the day and year first above written.


                                             [EACH GUARANTOR],

                                                By___________________________
                                                  Name:
                                                  Title:


                                             THE CHASE MANHATTAN BANK, as
                                             Collateral Agent,
<PAGE>

                                                                              11
                                             By___________________________
                                               Name:
                                               Title:
<PAGE>

                                                               Schedule I to the
                                                             Guarantee Agreement

          Guarantor                      Address
          ---------                      -------


                       [List each Subsidiary Loan Party]

<PAGE>

                                                                  EXHIBIT 10.8.2

                                                                  CONFORMED COPY

     FIRST AMENDMENT, CONSENT AND WAIVER, dated as of December 18, 1998 (this
"Amendment"), to the Credit Agreement, dated as of July 17, 1998 (as amended,
 ----------
supplemented or otherwise modified from time to time, the "Credit Agreement"),
                                                           ----------------
among TELECORP PCS, INC., a corporation organized under the laws of the State of
Delaware (the "Borrower"), the several banks and other financial institutions
               --------
and entities from time to time parties thereto (the "Lenders"), and THE CHASE
                                                     -------
MANHATTAN BANK, as administrative agent (the "Administrative Agent") for the
                                              --------------------
Lenders.

          WHEREAS, pursuant to the Credit Agreement, the Lenders have agreed to
make certain loans to the Borrower; and

          WHEREAS the Borrower has requested that certain provisions of the
Credit Agreement be modified in the manner provided for in this Amendment, and
the Lenders are willing to agree to such modifications as provided for in this
Amendment.


          NOW, THEREFORE, the parties hereto hereby agree as follows:

          1.  Defined Terms.  Capitalized terms used and not defined herein
              --------------
shall have the meanings given to them in the Credit Agreement, as amended
hereby.

          2.  Amendments to the Credit Agreement.
              -----------------------------------

          (a) Section 1.01 of the Credit Agreement is hereby amended by:

          (i) inserting the words "or the FCC" after the words "Treasury
     Department" in the definition of "FCC Debt";

          (ii) inserting after the definition of "Interest Period" and before
     the definition of "Issuing Bank" the following definition:

               "`IDB' means The Industrial Development Board of the City of
          Memphis and County of Shelby, Tennessee.";
<PAGE>

          (iii) inserting after the definition of "Management Agreement" and
     before the definition of "Master Lease" the following definition:

               "`Marketing Affiliate' means a limited liability company owned
          1/2 by the Borrower and 1/2 by Triton PCS, Inc. or 1/3 by the
          Borrower, 1/3 by Triton PCS, Inc. and 1/3 by TriTel PCS, Inc., which
          engages in no activity other than the registering, holding,
          maintenance and protection of trademarks and the licensing thereof to
          its members."

          (iv) inserting after the definition of "Material Indebtedness" and
     before the definition of "Mercury Acquisition" the following definitions:

               `Memphis Equipment' means the personal property to be leased to
          the Equipment Subsidiary by the IDB pursuant to the Memphis Lease all
          of which is described in Exhibit A thereto.

               `Memphis Event of Default' has the meaning assigned to such term
          in the Memphis Lease.

               `Memphis Lease' has the meaning ascribed thereto in the
          definition of Memphis Sale Lease-Back.

               `Memphis Lease Documents' has the meaning ascribed thereto in the
          definition of Memphis Sale Lease-Back.

               `Memphis Sale Lease-Back' means the sale of the Memphis Equipment
          to the IDB by the Equipment Subsidiary pursuant to Bills of Sale
          acceptable to the Administrative Agent and the lease-back by the
          Equipment Subsidiary of such equipment pursuant to a Personal Property
          Lease Agreement (the "Memphis Lease") between the IDB and the
          Equipment Subsidiary substantially in the form of, and no less
          favorable to the Lenders than, the draft thereof examined by the
          Administrative Agent prior to the date hereof; provided that (i) all
          the Equipment Subsidiary's rights under the Memphis Lease and related
          documentation (collectively, the "Memphis Lease Documents") are
          assigned to the Lenders as collateral, (ii) payments to the IDB under
          the Memphis Lease in any year do not exceed the amount of taxes that
          would have been paid to the State of Tennessee by the Borrower and the
<PAGE>

                                                                               3

          Subsidiaries in such year that are not required to be and are not paid
          as a result of the Memphis Sale Lease-Back (the "Saved Taxes") and
          (iii) the Equipment Subsidiary has the right to repurchase from the
          IDB at any time all the Memphis Equipment then owned by the IDB for
          $1,000 or less."

          (v) amending the definition of "Prepayment Event" by deleting from
     clause (a)(i) thereof "and (d)" and substituting therefor ", (d) and (e).";

          (vi) deleting the words "the Real Property Subsidiary" in the
     definition of "Real Property Subsidiary" and substituting therefor the
     words "a Real Property Subsidiary";

          (vii) inserting the word "each" before the words "such Restricted
     Subsidiary" each time they appear in the definition of "Real Property
     Subsidiary"; and

          (viii) deleting the dollar amounts "$880,000" and "$7,000,000" in the
     definition of "Wireless 2000 Acquisition" and substituting in lieu thereof
     the dollar amounts "$1,075,600" and "$7,449,191", respectively.

          (b) Section 3.13 of The Credit Agreement is hereby amended by deleting
clause (d) therefrom in its entirety and substituting therefor the following:

               "(d) in the case of any Equipment Subsidiary, (i) under any lease
          of equipment which it has entered into in the ordinary cause of
          business, (ii) for payments in lieu of taxes and other obligations
          under the Memphis Lease not exceeding the amount of the Saved Taxes in
          any year and (iv) for taxes incurred in the ordinary course of
          business which are incident to being the owner or lessor of equipment
          and"

          (c) Section 5.13 of the Credit Agreement is hereby amended by
inserting the following paragraph at the end thereof:

               "(c)  The Borrower will (i) take all necessary actions required
          to grant, preserve, protect and perfect a first priority security
<PAGE>

                                                                               4

          interest in favor of the Lenders in all assets subject to the Memphis
          Lease, (ii) obtain from the IDB all consents, filings or other actions
          the Administrative Agent may reasonably request in connection
          therewith and (iii) promptly notify and provide the Administrative
          Agent with a copy of any notice the Equipment Subsidiary receives
          pursuant to any of the Memphis Lease Documents."

          (d) Section 6.01(a)(viii) of the Credit Agreement is hereby amended by
deleting the dollar amount "$7,000,000" therefrom and substituting in lieu
thereof the dollar amount "$7,449,191".

          (e) Section 6.02 of the Credit Agreement is hereby amended by:

          (i) deleting the word "and" at the end of clause (iv) thereof;

          (ii) deleting "." at the end of clause (v) thereof and substituting ";
     and" therefor; and

          (iii) inserting the following after clause (v) thereof:  "(vi) Liens
     on the Memphis Equipment in favor of the IDB arising pursuant to the
     Memphis Sale Lease-Back."

          (f)  Section 6.03 of the Credit Agreement is hereby amended by:

          (i) inserting "(i)" after the words "except for" therein;

          (ii) deleting "." at the end thereof and substituting therefor the
     following:  "and (ii) the Memphis Sale Lease-Back."

          (g)  Section 6.05 of the Credit Agreement is hereby amended by
inserting after clause (n) thereof the following:

               "(o)  Investments in the Capital Stock of the Marketing Affiliate
          not exceeding $1,000 in the aggregate; provided that (i) all such
          Capital Stock is pledged pursuant to the Pledge Agreement and (ii) all
          agreements entered into between the
<PAGE>

                                                                               5

          Marketing Affiliate and any Loan Party are assigned to the Lenders as
          collateral."

          (h)  Section 6.06 of the Credit Agreement is hereby amended as
follows:

          (i)  by inserting after clause (d) thereof and before the proviso the
     following:
               "(e)  sales of the Memphis Equipment to the IDB pursuant to and
          in accordance with the terms of the Memphis Sale Lease-Back."

          (ii)  inserting ", except for the Memphis Sale Lease-Back," in the
     proviso thereof after the words "provided that" and before the words, "all
                                      --------
     sales".

          (i)  Section 6.11 of the Credit Agreement is hereby amended by
inserting after the words "Master Lease" the words "or the Memphis Lease
Documents".

          (j)  Section 6.13(c) of the Credit Agreement is hereby amended by:

               (i) inserting before the word "and" at the end of clause (ii) of
          the parenthetical therein the following:

                    ",(iii) for payments in lieu of taxes and other obligations
               under the Memphis Lease not exceeding the amount of the Saved
               Taxes in any year"

               (ii) renumbering clause (iii) thereof as clause (iv); and

               (iii) inserting before the period at the end of such subsection
          the words "and the Memphis Sale and Lease-Back".

          (k)  Article VII of the Credit Agreement is hereby amended by
inserting the following clause immediately after clause (v) thereof:

               "(w)  a Memphis Event of Default shall have occurred and be
          continuing;"
<PAGE>

                                                                               6

          3.  Consent.  The Lenders hereby consent to an amendment of the
              --------
Security Agreement by the Borrower and the Collateral Agent which deletes
Section 7.16 therefrom in its entirety and substitutes in lieu thereof the
following:

          "SECTION 7.16.  FCC Consent.  Notwithstanding anything herein which
     may be construed to the contrary, no action shall be taken by any of the
     Collateral Agent and the Secured Parties with respect to the Licenses or
     any license of the Federal Communications Commission ("FCC") unless and
     until any required approval under the Federal Communications Act of 1934,
     and any applicable rules and regulations thereunder, requiring the consent
     to or approval of such action by the FCC or any governmental or other
     authority, have been satisfied.  Without limiting the generality of the
     foregoing, the Collateral Agent and the Secured Parties shall have no
     security interest in the Licenses or any license of the FCC for so long as
     such security interest is prohibited by the rules or regulations of the FCC
     or any agreement between a Loan Party and the FCC securing FCC Debt in
     connection with any such License or other license.

          4.  Waiver.  The Lenders hereby expressly waive any rights or remedies
              -------
in connection with any breach of or failure to comply with the second sentence
of Section 5.03(a) of the Credit Agreement and the second sentence of Section
4.01 of the Security Agreement to the extent, and only to the extent, such
provision is breached in connection with the Borrower's relocation of its
primary business office to 1010 N. Glebe Road, Suite 800, Arlington, Virginia
22201.

          5.  No Other Amendments; Confirmation.  Except as expressly amended,
              ----------------------------------
waived, modified and supplemented hereby, the provisions of the Credit Agreement
are and shall remain in full force and effect.

          6.  Representations and Warranties.  The Borrower hereby represents
              -------------------------------
and warrants to the Administrative Agent and the Lenders as of the date hereof:

          (a) No Default or Event of Default has occurred and is continuing.
<PAGE>

                                                                               7

          (b) The execution, delivery and performance by the Borrower of this
     Amendment have been duly authorized by all necessary corporate and other
     action and do not and will not require any registration with, consent or
     approval of, notice to or action by, any person (including any governmental
     agency) in order to be effective and enforceable.  The Credit Agreement as
     amended by this Amendment constitutes the legal, valid and binding
     obligation of the Borrower, enforceable against each in accordance with its
     terms, subject only to the operation of the Bankruptcy Code and other
     similar statutes for the benefit of debtors generally and to the
     application of general equitable principles.

          (c) All representations and warranties of the Borrower contained in
     the Credit Agreement (other than representations or warranties expressly
     made only on and as of the Effective Date) are true and correct as of the
     date hereof.

          7.  Effectiveness.  This Amendment shall become effective only upon
              --------------
the satisfaction in full of the following conditions precedent:

          (a) The Administrative Agent shall have received counterparts hereof,
     duly executed and delivered by the Borrower, and the Required Lenders;

          (b) The Administrative Agent shall have received such opinions and
     certificates from the Borrower and its counsel as it may reasonably request
     in form reasonably satisfactory to its counsel.

          8.  Expenses.  The Borrower agrees to reimburse the Administrative
              ---------
Agent for its out-of-pocket expenses in connection with this Amendment,
including the reasonable fees, charges and disbursements of Cravath, Swaine &
Moore, counsel for the Administrative Agent.

          9.  Governing Law; Counterparts.  (a) This Amendment and the rights
              ----------------------------
and obligations of the parties hereto shall be governed by, and construed and
interpreted in accordance with, the laws of the State of New York.
<PAGE>

                                                                               8

          (b) This Amendment may be executed by one or more of the parties to
this Amendment on any number of separate counterparts, and all of said
counterparts taken together shall be deemed to constitute one and the same
instrument.  This Amendment may be delivered by facsimile transmission of the
relevant signature pages hereof.


          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.
<PAGE>


                                        TELECORP, PCS, INC.

                                             by
                                                  /s/ Thomas H. Sullivan
                                                  ------------------------------
                                                  Name:  Thomas H. Sullivan
                                                  Title: Executive Vice
                                                          President


                                        THE CHASE MANHATTAN BANK,
                                        individually and as Administrative
                                        Agent,

                                             by
                                                  /s/  William E. Rottino
                                                  ------------------------------
                                                  Name:  William E. Rottino
                                                  Title: Vice President


                                        THE BANK OF NEW YORK,

                                             by
                                                  /s/  Gerry Granovsky
                                                  ------------------------------
                                                  Name:  Gerry Granovsky
                                                  Title: Vice President



                                        BANK OF TOKYO MITSUBISHI TRUST COMPANY,

                                             by
                                                  /s/  Michael Deadder
                                                  ------------------------------
                                                  Name:  Michael Deadder
                                                  Title: Vice President


                                        BANKBOSTON, N.A.,

                                             by
                                                  /s/  Jonathan D. Sharkey
                                                  ------------------------------
                                                  Name: Jonathan D. Sharkey
                                                  Title: Vice President
<PAGE>


                                        BANKERS TRUST COMPANY, individually and
                                        as Documentation Agent,

                                             by
                                                  /s/ Gregory Shefrin
                                                  ------------------------------
                                                  Name:  Gregory Shefrin
                                                  Title: Vice President


                                        CANADIAN IMPERIAL BANK OF COMMERCE, by
                                        CIBC Oppenheimer Corp., as Agent,

                                             by
                                                  /s/  Harold Birk
                                                  ------------------------------
                                                  Name:   Harold Birk
                                                  Title:  Executive Director


                                        CIT GROUP/EQUIPMENT FINANCING,

                                             by
                                                  /s/ J. E. Palmer
                                                  ------------------------------
                                                  Name:  J. E. Palmer
                                                  Title: Assistant Vice
                                                            President


                                        CAPTIVA III FINANCE, LTD., as advised by
                                        Pacific Investment Management Company,

                                             by
                                                  /s/  David Egglishaw
                                                  ------------------------------
                                                  Name:  David Egglishaw
                                                  Title: Director


                                        DELANO COMANY, by Pacific Investment
                                        Management Company as its Investment
                                        Advisor,

                                             by
                                                  /s/  Raymond Kennedy
                                                  ------------------------------
                                                  Name:   Raymond Kennedy
                                                  Title:  Senior Vice President
<PAGE>

                                                                              11

                                        FLEET NATIONAL BANK,

                                             by
                                                  /s/  William Weiss
                                                  ------------------------------
                                                  Name:  William Weiss
                                                  Title: Assistant Vice
                                                         President


                                        GENERAL ELECTRIC CAPITAL CORPORATION,

                                             by
                                                  /s/  Mark F. Mylon
                                                  ------------------------------
                                                  Name:  Mark F. Mylon
                                                  Title:  Manager, Operations


                                        KZH APPALOOSA LLC,

                                             by
                                                  /s/  Virginia Conway
                                                  ------------------------------
                                                  Name:  Virginia Conway
                                                  Title: Authorized Agent


                                        KZH IV LLC,

                                             by
                                                  /s/  Virginia Conway
                                                  ------------------------------
                                                  Name:  Virginia Conway
                                                  Title: Authorized Agent


                                        KZH PAMCO LLC,

                                             by
                                                  /s/  Virginia Conway
                                                  ------------------------------
                                                  Name:  Virginia Conway
                                                  Title: Authorized Agent
<PAGE>

                                        PAMCO CAYMAN LTD., by Highland Capital
                                        Management, L.P., as Collateral Manager,

                                             by
                                                  /s/ James Dondero, CFA, CPA
                                                  ------------------------------
                                                  Name: James Dondero, CFA, CPA
                                                  Title: President, Highland
                                                       Capital Management, L.P.

                                        SYNDICATED LOAN FUNDING TRUST, by Lehman
                                        Commercial Paper Inc., not in its
                                        individual capacity but solely as Asset
                                        Manager,

                                             by
                                                  /s/  Michele Swanson
                                                  ------------------------------
                                                  Name:  Michele Swanson
                                                  Title:  Authorized Signatory


                                        TORONTO DOMINION [TEXAS], INC.,

                                             by
                                                  /s/  Lynn Chasin
                                                  ------------------------------
                                                  Name:  Lynn Chasin
                                                  Title: Vice President


                                        VAN KAMPEN PRIME RATE INCOME TRUST,

                                             by
                                                  /s/  Jeffrey W. Maillet
                                                  ------------------------------
                                                  Name:  Jeffrey W. Maillet
                                                  Title:  Senior Vice President
                                                            and Director


                                        VAN KAMPEN SENIOR FLOATING RATE FUND,

                                             by
                                                  /s/  Jeffrey W. Maillet
                                                  ------------------------------
                                                  Name:  Jeffrey W. Maillet
<PAGE>

                                                  Title:  Senior Vice President
                                                            and Director


                                        VAN KAMPEN SENIOR INCOME TRUST,

                                             by
                                                  /s/  Jeffrey W. Maillet
                                                  ------------------------------
                                                  Name:  Jeffrey W. Maillet
                                                  Title:  Senior Vice President
                                                            and Director

<PAGE>

                                                                  EXHIBIT 10.8.3

                                                                  EXECUTION COPY


     SECOND AMENDMENT AND WAIVER, dated as of March 1, 1999 (this "Amendment"),
                                                                   ---------
to the Credit Agreement, dated as of July 17, 1998 (as amended, supplemented or
otherwise modified from time to time, the "Credit Agreement"), among TELECORP
                                           ----------------
PCS, INC., a corporation organized under the laws of the State of Delaware (the
"Borrower"), the several banks and other financial institutions and entities
 --------
from time to time parties thereto (the "Lenders"), and THE CHASE MANHATTAN BANK,
                                        -------
as administrative agent (the "Administrative Agent") for the Lenders.
                              --------------------

          WHEREAS, pursuant to the Credit Agreement, the Lenders have agreed to
make certain loans to the Borrower; and

          WHEREAS the Borrower has requested that certain provisions of the
Credit Agreement be modified in the manner provided for in this Amendment, and
the Lenders are willing to agree to such modifications as provided for in this
Amendment.


          NOW, THEREFORE, the parties hereto hereby agree as follows:

          1.  Defined Terms.  Capitalized terms used and not defined herein
              --------------
shall have the meanings given to them in the Credit Agreement, as amended
hereby.

          2.  Amendments to the Credit Agreement.
              -----------------------------------

          (a) Section 1.01 of the Credit Agreement is hereby amended by:

          (i) adding in the appropriate alphabetical order the following
     definitions:

          "`Bidding Subsidiary' means Viper Wireless, Inc., a Delaware
     corporation."

          "`Equity Commitments' means irrevocable, unconditional commitments
     (other than commitments required to be contributed to the Borrower pursuant
     to the Securities Purchase Agreement) of Persons owning Capital Stock of
     the Borrower and their Affiliates to
<PAGE>

                                                                               2

     purchase additional Capital Stock of the Borrower for an aggregate purchase
     price no less than the aggregate amount of all investments by the Borrower
     and its Restricted Subsidiaries in the Bidding Subsidiary over the amount
     of all Restricted Payments made by the Bidding Subsidiary to THC on or
     prior to the earlier of (i) August 15, 1999 and (ii) the date that is ten
     days following the Bidding Subsidiary's receipt of any funds from the
     escrow account with the FCC."

          "`Equity Commitments Documentation' means documentation evidencing the
     Equity Commitments in form and substance reasonably satisfactory to the
     Required Lenders."

          "`PCS C Block Auction' means the reauction conducted by the FCC for
     the sale of Licenses in the C block as set forth in parts 1 and 24 of Title
     47 of the Code of Federal Regulations, scheduled to commence on or about
     March 23, 1999."

          (ii)  inserting the parenthetical "(provided that the Bidding
     Subsidiary need not be a Wholly Owned Subsidiary at any time prior to its
     becoming a Wholly Owned Subsidiary pursuant to Section 5.16)" immediately
     following the words "Wholly Owned Restricted Subsidiary" in the definition
     of "License Subsidiary".

          (iii) inserting the words "owned by the Borrower or a Restricted
     Subsidiary" immediately following the words "such Restricted Subsidiary" in
     clause (ii) of the proviso to the definition of "License Subsidiary".

          (iv)  inserting the parenthetical "(provided that the Bidding
     Subsidiary shall not be required to enter into a Special Purpose Subsidiary
     Funding Agreement prior to its becoming a Wholly Owned Subsidiary)"
     immediately before the period at the end of the definition of "License
     Subsidiary".

          (b)   Section 3.13 of the Credit Agreement is hereby amended by
inserting at the end of clause (c) thereof "and in the case of the Bidding
Subsidiary, the obligation to redeem the Capital Stock and preferred stock held
by THC".
<PAGE>

                                                                               3

          (c)  Article V of the Credit Agreement is hereby amended by adding the
following new Sections 5.16 and 5.17 at the end thereof:

          "SECTION 5.16. The Bidding Subsidiary.  The Borrower and THC shall
                         -----------------------
     endeavor in good faith to cause all assets held by the Bidding Subsidiary
     to be transferred to a Wholly Owned Restricted Subsidiary or to cause the
     Bidding Subsidiary or any successor thereto to become a Wholly Owned
     Restricted Subsidiary or to be merged with or into a Wholly Owned
     Restricted Subsidiary pursuant to a transaction in which the surviving
     entity is a Wholly Owned Restricted Subsidiary as soon as is practicable
     after the acquisition of any License by the Bidding Subsidiary.

          SECTION 5.17.  The Equity Commitments.  The Borrower will cause the
                         -----------------------
     Equity Commitments Documentation to become effective and shall provide the
     Administrative Agent with such proof of effectiveness as the Administrative
     Agent may reasonably request on or prior to the earlier of (i) March 23,
     1999 or (ii) the date on which the Bidding Subsidiary submits a bid in the
     PCS C Block Auction; provided that the Equity Commitments Documentation
                          -------- ----
     need not become effective if the Bidding Subsidiary does not submit any bid
     in the PCS C Block Auction, uses its best efforts to obtain prompt return
     of all funds placed in escrow with the FCC, and reimburses substantially
     all funds invested in it by THC to THC no later than the second day after
     the Bidding Subsidiary's receipt of such funds from the escrow account with
     the FCC (and, in any event, no later than April 23, 1999)."

          (d)  Section 6.01(b) of the Credit Agreement is hereby amended by
inserting immediately after "acquisitions permitted by Section 6.05" in the
first parenthetical thereto the following ", preferred stock of the Bidding
Subsidiary issued to and held by THC".

          (e)  Section 6.04(a) of the Credit Agreement is hereby amended by:

          (i)  deleting the word "and" at the end of clause (iv) thereof and
     substituting therefor a comma; and
<PAGE>

                                                                               4

          (ii) inserting immediately before the period at the end thereof the
     following "and (vi) the Bidding Subsidiary may merge with or into any
     License Subsidiary in a transaction in which a Wholly Owned License
     Subsidiary is the surviving corporation".

          (f)  Section 6.05(c) of the Credit Agreement is hereby amended by
inserting the following proviso at the end thereof "provided further that THC
                                                    --------
shall be permitted to make and hold investments in the Capital Stock and
preferred stock of the Bidding Subsidiary;".

          (g)  Section 6.08(a) of the Credit Agreement is hereby amended by

          (i)  deleting the word "and" at the end of clause (iii) thereof and
     substituting therefor a comma; and

          (ii) inserting immediately before the period at the end thereof the
     following "and (v) the Bidding Subsidiary may make Restricted Payments to
     THC with respect to its preferred stock and its Capital Stock".

          (h)  Section 6.11 of the Credit Agreement is hereby amended by
deleting the words "or (e) the Master Lease or Master Lease Documents, in the
case of clause (a), (b), (c) and (e) above" and substituting therefor ", (e) the
Master Lease or Master Lease Documents or (f) any agreement relating to the
Equity Commitments, in the case of clause (a), (b), (c), (e) and (f) above".

          (i)  Section 6.13(a) is hereby amended by inserting the following
proviso at the end thereof "provided, however, that THC may make an investment
                            --------  -------
or investments in the Bidding Subsidiary during the period beginning March 1,
1999 and ending on the earlier of the date on which the Bidding Subsidiary
ceases to participate in the PCS C Block Auction and August 15, 1999 in an
aggregate amount not in excess of $25,000,000;"

          (j)  Article VI of the Credit Agreement is hereby further amended by
adding the following new Section 6.14 at the end thereof:

          "SECTION 6.14. The Bidding Subsidiary's Licenses.  Prior to its
                         ----------------------------------
     becoming a Wholly Owned Subsidiary, the Bidding Subsidiary shall hold no
     Licenses other than
<PAGE>

                                                                               5

     Licenses acquired by the Bidding Subsidiary in the PCS C Block Auction."

          (k)  Article VII of the Credit Agreement is hereby amended by
inserting the following clauses (x) and (y) immediately after clause (w)
thereof:

          "(x) The Bidding Subsidiary shall fail to reimburse promptly after its
     receipt thereof from the FCC escrow account, and in no event later than
     August 15, 1999, substantially all funds invested in it by THC which have
     not been used by such date to purchase Licenses.

          (y)  the failure of any Person to comply with any funding or
     contribution obligation pursuant to the Equity Commitments and such failure
     shall continue unremedied for a period of 30 days."

          3.   Waiver. The Lenders hereby expressly waive any rights or remedies
               -------
in connection with any breach of or failure to comply with (i) the second
sentences of Section 3.12(a) and Section 3.12(c) of the Credit Agreement to the
extent, and only to the extent, such Sections are breached by the ownership of
15% of the common stock (representing 51% of the total ordinary voting power) of
the Bidding Subsidiary by Gerald Vento and Thomas Sullivan at any time prior to
its becoming a Wholly Owned Subsidiary pursuant to Section 5.16 and (b) Section
6.13(a) to the extent, and only to the extent, such Section is breached by the
Bidding Subsidiary being obligated to redeem the Capital stock and preferred
stock being held by THC or participating in the PCS C Block Auction.

          4.   License Subsidiary.  By executing this Amendment the Borrower
               -------------------
hereby gives notice to the Administrative Agent that the Bidding Subsidiary is
designated as a License Subsidiary.

          5.   No Other Amendments; Confirmation.  Except as expressly amended,
               ----------------------------------
waived, modified and supplemented hereby, the provisions of the Credit Agreement
are and shall remain in full force and effect.
<PAGE>

                                                                               6

          6.   Representations and Warranties.  The Borrower hereby represents
               -------------------------------
and warrants to the Administrative Agent and the Lenders as of the date hereof:

          (a)  No Default or Event of Default has occurred and is continuing.

          (b)  The execution, delivery and performance by the Borrower of this
Amendment have been duly authorized by all necessary corporate and other action
and do not and will not require any registration with, consent or approval of,
notice to or action by, any person (including any governmental agency) in order
to be effective and enforceable. The Credit Agreement as amended by this
Amendment constitutes the legal, valid and binding obligation of the Borrower,
enforceable against each in accordance with its terms, subject only to the
operation of the Bankruptcy Code and other similar statutes for the benefit of
debtors generally and to the application of general equitable principles.

          (c)  All representations and warranties of the Borrower contained in
the Credit Agreement (other than representations or warranties expressly made
only on and as of the Effective Date) are true and correct as of the date
hereof.

          7.   Effectiveness. This Amendment shall become effective only upon
               --------------
the satisfaction in full of the following conditions precedent:

          (a)  The Administrative Agent shall have received counterparts hereof,
duly executed and delivered by the Borrower and the Required Lenders.


          (b)  The Administrative Agent shall have received an executed copy of
an agreement requiring the Bidding Subsidiary to distribute to THC (including,
without limitation, by means of stock redemption) substantially all funds
contributed to it which are not used to purchase C Block Licenses on or prior to
August 15, 1999.

          (c)  The Administrative Agent shall have received such opinions and
certificates from the Borrower and its counsel relating to this Amendment as it
may reasonably request in form reasonably satisfactory to its counsel.
<PAGE>

                                                                               7

          (d)  The requirements of Section 5.12 of the Credit Agreement with
respect to the Bidding Subsidiary shall have been met.

          (e)  THC shall own (a) 85% of the common stock of the Bidding
Subsidiary representing 49.9% of the ordinary voting power and (ii) all issued
shares of the non-convertible 10% preferred stock of the Bidding Subsidiary.
Gerry Vento and Tom Sullivan shall own 15% of the common stock of the Bidding
Subsidiary representing 50.1% of the ordinary voting power.  The Bidding
Subsidiary shall have no other outstanding stock.

          8.   Expenses.  The Borrower agrees to reimburse the Administrative
               ---------
Agent for its out-of-pocket expenses in connection with this Amendment,
including the reasonable fees, charges and disbursements of Cravath, Swaine &
Moore, counsel for the Administrative Agent.

          9.   Governing Law; Counterparts.  (a) This Amendment and the rights
               ----------------------------
and obligations of the parties hereto shall be governed by, and construed and
interpreted in accordance with, the laws of the State of New York.

          (b)  This Amendment may be executed by one or more of the parties to
this Amendment on any number of separate counterparts, and all of said
counterparts taken together shall be deemed to constitute one and the same
instrument. This Amendment may be delivered by facsimile transmission of the
relevant signature pages hereof.

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.


                         TELECORP, PCS, INC.

                             by
                                   /s/ Thomas Sullivan
                                -------------------------------

                                Name:Thomas Sullivan
                                Title:President
<PAGE>

                                                                               8

                         THE CHASE MANHATTAN BANK,

                             by
                                  /s/ William Rottino
                                -------------------------------
                                Name:  William Rottino
                                Title: Vice President
<PAGE>

                                         THE BANK OF NEW YORK,

                                            by
                                                 /s/ Gerry Granovsky
                                               ------------------------------
                                               Name:Gerry Granovsky
                                               Title:Vice President



                                         BANK OF TOKYO MITSUBISHI TRUST
                                         COMPANY,

                                            by
                                                 /s/ Michael Deadder
                                               ------------------------------
                                               Name:Michael Deadder
                                               Title:Vice President


                                         BANKBOSTON, N.A.,

                                            by
                                                /s/ Signature illegible
                                               -----------------------------
                                               Name:
                                               Title:


                                         BANKERS TRUST COMPANY,

                                            by
                                                 /s/ Gregory Shefrin
                                               ------------------------------
                                               Name:Gregory Shefrin
                                               Title:Principal


                                         CANADIAN IMPERIAL BANK OF COMMERCE,
                                         by CIBC Oppenheimer Corp., as Agent,

                                            by
                                                 /s/ Harold Birk
                                               ------------------------------
                                               Name:Harold Birk
                                               Title:Executive Director
<PAGE>

                                         CIT GROUP/EQUIPMENT FINANCING,

                                            by
                                                 /s/ J.E. Palmer
                                               ------------------------------
                                               Name:J.E. Palmer
                                               Title:Assistant Vice President


                                         CAPTIVA III FINANCE, LTD., as
                                         advised by Pacific Investment
                                         Management Company,

                                            by /s/ Signature illegible
                                               -----------------------------_
                                               Name:
                                               Title:


                                         DELANO COMANY, by Pacific Investment
                                         Management Company as its Investment
                                         Advisor,

                                            by /s/ Signature illegible
                                               ------------------------------
                                               Name:
                                               Title:


                                         FLEET NATIONAL BANK,

                                            by
                                                 /s/ Garret Komjathy
                                               ------------------------------
                                               Name:Garrett Komjathy
                                               Title:Vice President


                                         GENERAL ELECTRIC CAPITAL CORPORATION,

                                            by
                                                 /s/ Mark F. Mylon
                                               ------------------------------
                                               Name:Mark F. Mylon
                                               Title:Manger-Operations


                                         KZH APPALOOSA LLC,
<PAGE>

                                            by
                                                 /s/ Virginia Conway
                                               ------------------------------
                                               Name:Virginia Conway
                                               Title:Authorized Agent


                                         KZH IV LLC,

                                            by
                                                 /s/ Virginia Conway
                                               ------------------------------
                                               Name:Virginia Conway
                                               Title:Authorized Agent

                                         KZH PAMCO LLC,

                                            by
                                                 /s/ Virginia Conway
                                               ------------------------------
                                               Name:Virginia Conway
                                               Title:Authorized Agent


                                         PAMCO CAYMAN LTD., by Highland
                                         Capital Management, L.P., as
                                         Collateral Manager,

                                            by
                                                 /s/ Mark K. Okada
                                               ------------------------------
                                               Name:Mark K. Okada
                                               Title:Executive Vice President
                                             Highland Capital Management L.P.


                                         SYNDICATED LOAN FUNDING TRUST, by
                                         Lehman Commercial Paper Inc., not in
                                         its individual capacity but solely
                                         as Asset Manager,

                                            by
                                                 /s/ Michele Swanson
                                               ------------------------------
                                               Name:Michele Swanson
                                               Title:Authorized Signatory


                                         TORONTO DOMINION [TEXAS], INC.,

                                            by
                                                 /s/ Lynn Chasin
                                               ------------------------------
<PAGE>

                                               Name:Lynn Chasin
                                               Title:Vice President


                                         VAN KAMPEN PRIME RATE INCOME TRUST,

                                            by
                                                /s/ Signature illegible
                                               ------------------------------
                                               Name:
                                               Title:



                                         VAN KAMPEN SENIOR FLOATING RATE FUND,

                                            by /s/ Signature illegible
                                               ------------------------------
                                               Name:
                                               Title:


                                         VAN KAMPEN SENIOR INCOME TRUST,

                                            by /s/ Signature illegible
                                               ------------------------------
                                               Name:
                                               Title:


                                         MOUNTAIN CLO TRUST,

                                            by /s/ Signature illegible
                                               ------------------------------
                                               Name:
                                               Title:


                                         FRANKLIN FLOATING RATE TRUST,

                                            by /s/ Signature illegible
                                               ------------------------------
                                               Name:
                                               Title:

<PAGE>

                                         MORGAN GUARANTY TRUST COMPANY OF NEW
                                         YORK,

                                            by
                                                 /s/ Gery Sampere
                                               ------------------------------
                                               Name:Gery Sampere
                                               Title:Vice President

                                         DEBT STRATEGIES FUND, INC.

                                            by
                                                 /s/ signature illegible
                                               ------------------------------
                                               Name:
                                               Title:



                                         MERRILL LYNCH ASSET MANAGEMENT,

                                            by
                                                 /s/ signature illegible
                                               ------------------------------
                                               Name:
                                               Title:


                                         MERRILL LYNCH PRIME RATE PORTFOLIO,
                                         INC.,

                                            by

                                                 /s/ signature illegible
                                               ------------------------------
                                               Name:
                                               Title:


                                         MERRILL LYNCH SENIOR FLOATING RATE
                                         FUND, INC.,

                                            by
                                                  /s/ signature illegible
                                               ------------------------------
                                               Name:
                                               Title:


                                         SENIOR HIGH INCOME PORTFOLIO, INC.,

                                            by
<PAGE>

                                               /s/ Signature illegible
                                               -----------------------------
                                               Name:
                                               Title:

<PAGE>

                                                                  EXHIBIT 10.8.4

                                                                  EXECUTION COPY

   THIRD AMENDMENT, dated as of March 30, 1999 (this "Amendment"), to the Credit
                                                      ---------
Agreement, dated as of July 17, 1998 (as amended, supplemented or otherwise
modified from time to time, the "Credit Agreement"), among TELECORP PCS, INC., a
                                 ----------------
corporation organized under the laws of the State of Delaware (the "Borrower"),
                                                                    --------
the several banks and other financial institutions and entities from time to
time parties thereto (the "Lenders"), and THE CHASE MANHATTAN BANK, as
                           -------
administrative agent (the "Administrative Agent") for the Lenders.
                           --------------------

          WHEREAS, pursuant to the Credit Agreement, the Lenders have agreed to
make certain loans to the Borrower; and

          WHEREAS the Borrower has requested that certain provisions of the
Credit Agreement be modified in the manner provided for in this Amendment, and
the Lenders are willing to agree to such modifications as provided for in this
Amendment.


          NOW, THEREFORE, the parties hereto hereby agree as follows:

          1.  Defined Terms.  Capitalized terms used and not defined herein
              --------------
shall have the meanings given to them in the Credit Agreement, as amended
hereby.

          2.  Amendments to the Credit Agreement.
              -----------------------------------

          Section 1.01 of the Credit Agreement is hereby amended by deleting the
definition of "Senior Debt" in its entirety and substituting in lieu therefor
the following definition:

              "`Senior Debt' shall mean all Indebtedness of the Borrower and
                 -----------
          the Subsidiaries on a consolidated basis other than the Subordinated
          Debt, the Series A Bonds and the Series B Bonds."

          3.  No Other Amendments; Confirmation.  Except as expressly amended,
              ----------------------------------
waived, modified and supplemented hereby, the provisions of the Credit Agreement
are and shall remain in full force and effect.
<PAGE>

                                                                               2

          4.  Representations and Warranties.  The Borrower hereby represents
              -------------------------------
and warrants to the Administrative Agent and the Lenders as of the date hereof:

          (a) No Default or Event of Default has occurred and is continuing.

          (b) The execution, delivery and performance by the Borrower of this
     Amendment have been duly authorized by all necessary corporate and other
     action and do not and will not require any registration with, consent or
     approval of, notice to or action by, any person (including any governmental
     agency) in order to be effective and enforceable. The Credit Agreement as
     amended by this Amendment constitutes the legal, valid and binding
     obligation of the Borrower, enforceable against each in accordance with its
     terms, subject only to the operation of the Bankruptcy Code and other
     similar statutes for the benefit of debtors generally and to the
     application of general equitable principles.

          (c) All representations and warranties of the Borrower contained in
     the Credit Agreement (other than representations or warranties expressly
     made only on and as of the Effective Date) are true and correct as of the
     date hereof.

          5.  Effectiveness.  This Amendment shall become effective only upon
              --------------
the satisfaction in full of the following conditions precedent:

          (a) The Administrative Agent shall have received counterparts hereof,
     duly executed and delivered by the Borrower, and the Requisite Lenders; and

          (b) The Administrative Agent shall have received such opinions and
     certificates from the Borrower and its counsel as it may reasonably request
     in form reasonably satisfactory to its counsel.

          6.  Expenses.  The Borrower agrees to reimburse the Administrative
              ---------
Agent for its out-of-pocket expenses in connection with this Amendment,
including the reasonable fees, charges and disbursements of Cravath, Swaine &
Moore, counsel for the Administrative Agent.
<PAGE>

                                                                               3

          7.  Governing Law; Counterparts.  (a) This Amendment and the rights
              ----------------------------
and obligations of the parties hereto shall be governed by, and construed and
interpreted in accordance with, the laws of the State of New York.

          (b) This Amendment may be executed by one or more of the parties to
this Amendment on any number of separate counterparts, and all of said
counterparts taken together shall be deemed to constitute one and the same
instrument.  This Amendment may be delivered by facsimile transmission of the
relevant signature pages hereof.
<PAGE>

                                                                               4

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.


                                      TELECORP, PCS, INC.

                                         by
                                            /s/ Thomas H. Sullivan
                                            ------------------------------
                                            Name: Thomas H. Sullivan
                                            Title: CFO


                                      THE CHASE MANHATTAN BANK,
                                      individually and as Administrative Agent,

                                         by
                                            /s/ William E. Rottino
                                            ------------------------------
                                            Name: William E. Rottino
                                            Title: Vice President
<PAGE>

                                                                               5

                                       THE BANK OF NEW YORK,

                                         by
                                              /s/ Gerry Granovsky
                                             ------------------------------
                                             Name: Gerry Granovsky
                                             Title: Vice President



                                       BANK OF TOKYO MITSUBISHI TRUST COMPANY,

                                         by  /s/ Signature illegible
                                             ------------------------------
                                             Name:
                                             Title:


                                       BANKBOSTON, N.A.,

                                         by
                                              /s/ Jonathan D. Sharkey
                                             ------------------------------
                                             Name: Jonathan D. Sharkey
                                             Title: Vice President


                                       BANKERS TRUST COMPANY,

                                         by
                                              /s/ Gregory Shefrin
                                             ------------------------------
                                             Name: Gregory Shefrin
                                             Title: Principal


                                       CANADIAN IMPERIAL BANK OF COMMERCE,
                                       by CIBC Oppenheimer Corp., as Agent,

                                         by
                                              /s/ Harold Birk
                                             ------------------------------
                                             Name: Harold Birk
                                             Title: Executive Director
<PAGE>

                                       CIT GROUP/EQUIPMENT FINANCING,

                                         by
                                             /s/ J.E. Palmer
                                            ------------------------------
                                            Name: J.E. Palmer
                                            Title: Assistant Vice President


                                       CAPTIVA III FINANCE, LTD., as
                                       advised by Pacific Investment
                                       Management Company,

                                         by  /s/ [SIGNATURE ILLEGIBLE]
                                             ____________________________
                                             Name:
                                             Title:


                                       DELANO COMANY, by Pacific Investment
                                       Management Company as its Investment
                                       Advisor,

                                         by
                                              /s/ Raymond Kennedy
                                             -------------------------------
                                             Name: Raymond Kennedy
                                             Title: Senior Vice President


                                       FLEET NATIONAL BANK,

                                         by
                                              /s/ William Weiss
                                             -------------------------------
                                             Name: William Weiss
                                             Title: Assistant Vice President


                                       GENERAL ELECTRIC CAPITAL CORPORATION,

                                         by
                                              /s/ Mark F. Mylon
                                             -------------------------------
                                             Name: Mark F. Mylon
                                             Title: Manager-Operations


                                       KZH APPALOOSA LLC,
<PAGE>

                                         by
                                              /s/ Virginia Conway
                                             -------------------------------
                                             Name: Virginia Conway
                                             Title: Authorized Agent


                                       KZH IV LLC,

                                         by
                                              /s/ Virginia Conway
                                             ------------------------------
                                             Name: Virginia Conway
                                             Title: Authorized Agent

                                       KZH PAMCO LLC,

                                         by
                                              /s/ Virginia Conway
                                             ------------------------------
                                             Name: Virginia Conway
                                             Title: Authorized Agent


                                       PAMCO CAYMAN LTD., by Highland
                                       Capital Management, L.P., as
                                       Collateral Manager,

                                         by
                                              /s/ Mark K. Okada
                                             ------------------------------
                                             Name: Mark K. Okada
                                             Title: CFA, Executive Vice
                                                   President


                                       SYNDICATED LOAN FUNDING TRUST, by
                                       Lehman Commercial Paper Inc., not in
                                       its individual capacity but solely as
                                       Asset Manager,

                                         by
                                             /s/ Michele Swanson
                                             ------------------------------
                                             Name: Michele Swanson
                                             Title: Authorized Signatory


                                       TORONTO DOMINION [TEXAS], INC.,

                                         by
                                             /s/ Lynn Chasin
                                             ------------------------------
<PAGE>

                                             Name: Lynn Chasin
                                             Title: Vice President


                                       VAN KAMPEN PRIME RATE INCOME TRUST,

                                         by
                                             /s/ Jeffrey W. Maillet
                                             ------------------------------
                                             Name: Jeffrey W. Maillet
                                             Title: Senior Vice President &
                                                     Director


                                       VAN KAMPEN SENIOR FLOATING RATE FUND,

                                         by
                                             /s/ Jeffrey W. Maillet
                                             ------------------------------
                                             Name: Jeffrey W. Maillet
                                             Title: Senior Vice President &
                                                     Director


                                       VAN KAMPEN SENIOR INCOME TRUST,

                                         by
                                             /s/ Jeffrey W. Maillet
                                             ------------------------------
                                             Name: Jeffrey W. Maillet
                                             Title: Senior Vice President &
                                                     Director


                                       MOUNTAIN CLO TRUST,

                                         by  /s/ [SIGNATURE ILLEGIBLE]
                                             ______________________________
                                             Name:
                                             Title:


                                       FRANKLIN FLOATING RATE TRUST,

                                         by  /s/ [SIGNATURE ILLEGIBLE]
                                             ______________________________
<PAGE>

                                             Name:
                                             Title:


                                       MORGAN GUARANTY TRUST COMPANY OF NEW
                                       YORK,

                                         by  /s/ [SIGNATURE ILLEGIBLE]
                                             ______________________________
                                             Name:
                                             Title:


                                       DEBT STRATEGIES FUND, INC.

                                         by  /s/ [SIGNATURE ILLEGIBLE]
                                             ______________________________
                                             Name:
                                             Title:


                                       MERRILL LYNCH ASSET MANAGEMENT,

                                         by  /s/ [SIGNATURE ILLEGIBLE]
                                             ______________________________
                                             Name:
                                             Title:


                                       MERRILL LYNCH PRIME RATE PORTFOLIO, INC.,

                                         by  /s/ [SIGNATURE ILLEGIBLE]
                                             ______________________________
                                             Name:
                                             Title:


                                       MERRILL LYNCH SENIOR FLOATING RATE FUND,
                                       INC.,

                                         by  /s/ [SIGNATURE ILLEGIBLE]
                                             ______________________________
                                             Name:
                                             Title:


                                       SENIOR HIGH INCOME PORTFOLIO, INC.,
<PAGE>

                                         by  /s/ [SIGNATURE ILLEGIBLE]
                                             ______________________________
                                             Name:
                                             Title:


                                       LEHMAN COMMERCIAL PAPER INC.

                                         by
                                             /s/ Michele Swanson
                                             ------------------------------
                                             Name: Michele Swanson
                                             Title: Authorized Signatory

<PAGE>

                                                                  EXHIBIT 10.8.5


                                                                  CONFORMED COPY



                    FOURTH AMENDMENT, dated as of March 31, 1999 (this
               "Amendment"), to the Credit Agreement, dated as of July 17, 1998
               ----------
               (as amended, supplemented or otherwise modified from time to
               time, the "Credit Agreement"), among TELECORP PCS, INC., a
                          ----------------
               corporation organized under the laws of the State of Delaware
               (the "Borrower"), the several banks and other financial
                     --------
               institutions and entities from time to time parties thereto (the
               "Lenders"), and THE CHASE MANHATTAN BANK, as administrative agent
                -------
               (the "Administrative Agent") for the Lenders.
                     --------------------

          WHEREAS, pursuant to the Credit Agreement, the Lenders have agreed to
make certain loans to the Borrower; and

          WHEREAS the Borrower has requested that certain provisions of the
Credit Agreement be modified in the manner provided for in this Amendment, and
the Lenders are willing to agree to such modifications as provided for in this
Amendment.

          NOW, THEREFORE, the parties hereto hereby agree as follows:

          1.   Defined Terms.  Capitalized terms used and not defined herein
               -------------
shall have the meanings given to them in the Credit Agreement, as amended
hereby.

          2.   Amendment to the Credit Agreement.  Section 6.13(a) of the Credit
               ---------------------------------
Agreement is hereby amended by deleting the amount "$25,000,000" immediately
before the semicolon at the end thereof and substituting therefor "$30,000,000
at any one time outstanding".

          3.   No Other Amendments; Confirmation.  Except as expressly amended,
               ---------------------------------
waived, modified and supplemented hereby, the provisions of the Credit Agreement
are and shall remain in full force and effect.
<PAGE>

          4.   Representations and Warranties.  The Borrower hereby represents
               ------------------------------
and warrants to the Administrative Agent and the Lenders as of the date hereof:

          (a)  No Default or Event of Default has occurred and is continuing.

          (b)  The execution, delivery and performance by the Borrower of this
Amendment have been duly authorized by all necessary corporate and other action
and do not and will not require any registration with, consent or approval of,
notice to or action by, any person (including any governmental agency) in order
to be effective and enforceable.  The Credit Agreement as amended by this
Amendment constitutes the legal, valid and binding obligation of the Borrower,
enforceable against each in accordance with its terms, subject only to the
operation of the Bankruptcy Code and other similar statutes for the benefit of
debtors generally and to the application of general equitable principles.

          (c)  All representations and warranties of the Borrower contained in
the Credit Agreement (other than representations or warranties expressly made
only on and as of the Effective Date) are true and correct as of the date
hereof.

          5.   Effectiveness.  This Amendment shall become effective only upon
               -------------
the satisfaction in full of the following conditions precedent:

          (a)  The Administrative Agent shall have received counterparts hereof,
duly executed and delivered by the Borrower and the Required Lenders.

          (b)  The Administrative Agent shall have received such opinions and
certificates from the Borrower and its counsel relating to this Amendment as it
may reasonably request in form reasonably satisfactory to its counsel.

          (c)  The Administrative Agent shall have received proof, reasonably
satisfactory to it, that the Equity Commitments shall have been increased to
$30,000,000.

          6.   Expenses.  The Borrower agrees to reimburse the Administrative
               --------
Agent for its out-of-pocket expenses in connection with this Amendment,
including the reasonable fees, charges and disbursements of Cravath, Swaine &
Moore, counsel for the Administrative Agent.

          7.   Governing Law; Counterparts.  (a) This Amendment and the rights
               ---------------------------
and obligations of the parties
<PAGE>

                                                                               3

hereto shall be governed by, and construed and interpreted in accordance with,
the laws of the State of New York.

          (b)  This Amendment may be executed by one or more of the parties to
this Amendment on any number of separate counterparts, and all of said
counterparts taken together shall be deemed to constitute one and the same
instrument.  This Amendment may be delivered by facsimile transmission of the
relevant signature pages hereof.

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.


                                   TELECORP PCS, INC.

                                       by
                                           /s/ Thomas H. Sullivan
                                          ------------------------------------
                                          Name:   Thomas H. Sullivan
                                          Title:  Chief Financial Officer

                                   THE CHASE MANHATTAN BANK,

                                       by
                                           /s/ William E. Rottino
                                          ------------------------------------
                                          Name:   William E. Rottino
                                          Title:  Vice President

<PAGE>

                                   THE BANK OF NEW YORK,

                                       by
                                           /s/ Gerry Granovsky
                                          ------------------------------------
                                          Name:   Gerry Granovsky
                                          Title:  Vice President



                                   BANK OF TOKYO MITSUBISHI TRUST COMPANY,

                                       by /s/ [SIGNATURE ILLEGIBLE]
                                          ____________________________________
                                          Name:
                                          Title:


                                   BANKBOSTON, N.A.,

                                       by
                                           /s/ Jonathan D. Sharkey
                                          ------------------------------------
                                          Name:   Jonathan D. Sharkey
                                          Title:  Vice President


                                   BANKERS TRUST COMPANY,

                                       by
                                           /s/ Gregory Shefrin
                                          ------------------------------------
                                          Name:   Gregory Shefrin
                                          Title:  Principal


                                   CANADIAN IMPERIAL BANK OF COMMERCE,
                                   by CIBC Oppenheimer Corp., as Agent,

                                       by
                                           /s/ Harold Birk
                                          ------------------------------------
                                          Name:   Harold Birk
                                          Title:  Executive Director
<PAGE>

                                   CIT GROUP/EQUIPMENT FINANCING,

                                       by
                                           /s/ J. E. Palmer
                                          ------------------------------------
                                          Name:   J. E. Palmer
                                          Title:  Assistant Vice President

                                   CAPTIVA III FINANCE, LTD., as
                                   advised by Pacific Investment Management
                                   Company,

                                       by /s/ [SIGNATURE ILLEGIBLE]
                                          ____________________________________
                                          Name:
                                          Title:


                                   DELANO COMPANY, by Pacific Investment
                                   Management Company as its Investment
                                   Advisor,

                                       by /s/ [SIGNATURE ILLEGIBLE]
                                          ____________________________________
                                          Name:
                                          Title:


                                   FLEET NATIONAL BANK,

                                       by
                                           /s/ Garret Komjathy
                                          ------------------------------------
                                          Name:   Garret Komjathy
                                          Title:  Vice President


                                   GENERAL ELECTRIC CAPITAL CORPORATION,

                                       by
                                            /s/ Mark F. Mylon
                                          ------------------------------------
                                          Name:   Mark F. Mylon
                                          Title:  Manager-- Operations


                                   KZH APPALOOSA LLC,
<PAGE>

                                       by
                                           /s/ Virginia Conway
                                          ------------------------------------
                                          Name:   Virginia Conway
                                          Title:  Authorized Agent


                                   KZH IV LLC,

                                       by
                                           /s/ Virginia Conway
                                          ------------------------------------
                                          Name:   Virginia Conway
                                          Title:  Authorized Agent

                                   KZH PAMCO LLC,

                                       by
                                           /s/ Virginia Conway
                                          ------------------------------------
                                          Name:   Virginia Conway
                                          Title:  Authorized Agent


                                   PAMCO CAYMAN LTD., by Highland
                                   Capital Management, L.P., as
                                   Collateral Manager,

                                       by
                                           /s/ Mark K. Okada
                                          ------------------------------------
                                          Name:   Mark K. Okada, CFA
                                          Title:  Executive Vice President


                                   SYNDICATED LOAN FUNDING TRUST, by
                                   Lehman Commercial Paper Inc., not in
                                   its individual capacity but solely
                                   as Asset Manager,

                                       by
                                           /s/ Michele Swanson
                                          ------------------------------------
                                          Name:   Michele Swanson
                                          Title:  Authorized Signatory


                                   LEHMAN COMMERCIAL PAPER INC.

                                       by
                                           /s/ Michele Swanson
                                          ------------------------------------
<PAGE>

                                          Name:   Michele Swanson
                                          Title:  Authorized Signatory


                                   TORONTO DOMINION [TEXAS], INC.,

                                       by
                                           /s/ Lynn Chasin
                                          ------------------------------------
                                          Name:   Lynn Chasin
                                          Title:  Vice President


                                   VAN KAMPEN PRIME RATE INCOME TRUST,

                                       by
                                           /s/ Jeffrey W. Maillet
                                          ------------------------------------
                                          Name:   Jeffrey W. Maillet
                                          Title:  Senior Vice President and
                                                  Director


                                   VAN KAMPEN SENIOR FLOATING RATE FUND,

                                       by
                                           /s/ Jeffrey W. Maillet
                                          ------------------------------------
                                          Name:   Jeffrey W. Maillet
                                          Title:  Senior Vice President and
                                                  Director


                                   VAN KAMPEN SENIOR INCOME TRUST,

                                       by
                                           /s/ Jeffrey W. Maillet
                                          ------------------------------------
                                          Name:   Jeffrey W. Maillet
                                          Title:  Senior Vice President and
                                                  Director

                                   MOUNTAIN CLO TRUST,

                                       by /s/ [SIGNATURE ILLEGIBLE]
                                          ------------------------------------
                                          Name:
                                          Title:
<PAGE>

                                   FRANKLIN FLOATING RATE TRUST,

                                       by
                                           /s/ Chauncey Lufkin
                                          ------------------------------------
                                          Name:   Chauncey Lufkin
                                          Title:  Senior Vice President


                                   MORGAN GUARANTY TRUST COMPANY OF NEW YORK,

                                       by
                                           /s/ Gery Sampere
                                          ------------------------------------
                                          Name:   Gery Sampere
                                          Title:  Vice President

                                   DEBT STRATEGIES FUND, INC.

                                       by /s/ [SIGNATURE ILLEGIBLE]
                                          ------------------------------------
                                          Name:
                                          Title:



                                   MERRILL LYNCH ASSET MANAGEMENT,

                                       by /s/ [SIGNATURE ILLEGIBLE]
                                          ------------------------------------
                                          Name:
                                          Title:


                                   MERRILL LYNCH PRIME RATE PORTFOLIO, INC.,

                                       by /s/ [SIGNATURE ILLEGIBLE]
                                          ------------------------------------
                                          Name:
                                          Title:


                                   MERRILL LYNCH SENIOR FLOATING RATE FUND,
                                   INC.,

                                       by
<PAGE>

                                          /s/ [SIGNATURE ILLEGIBLE]
                                          ------------------------------------
                                          Name:
                                          Title:


                                   SENIOR HIGH INCOME PORTFOLIO, INC.,

                                       by /s/ [SIGNATURE ILLEGIBLE]
                                          ------------------------------------
                                          Name:
                                          Title:

<PAGE>

                                                                  EXHIBIT 10.8.6


                                                                  CONFORMED COPY



     FIFTH AMENDMENT AND ACCEPTANCE, dated as of April 7, 1999 (this
"Amendment"), to the Credit Agreement, dated as of July 17, 1998 (as amended,
 ---------
supplemented or otherwise modified from time to time, the "Credit Agreement"),
                                                           ----------------
among TELECORP PCS, INC., a corporation organized under the laws of the State of
Delaware (the "Borrower"), the several banks and other financial institutions
               --------
and entities from time to time parties thereto (the "Lenders"), and THE CHASE
                                                     -------
MANHATTAN BANK, as administrative agent (the "Administrative Agent") for the
                                              --------------------
Lenders.

          WHEREAS, pursuant to the Credit Agreement, the Lenders have agreed to
make certain loans to the Borrower; and

          WHEREAS the Borrower has requested that Credit Agreement be amended in
the manner provided for in this Amendment and that the Lenders accept the terms
of certain Subordinated Debt to be issued by the Borrower, and the Lenders party
hereto are willing to agree to such modifications and give such acceptance as
provided for in this Amendment.


          NOW, THEREFORE, the parties hereto hereby agree as follows:

          1.  Defined Terms.  Capitalized terms used and not defined herein
              --------------
shall have the meanings given to them in the Credit Agreement, as amended
hereby.

          2.  Amendment to Section 1.01 of the Credit Agreement. Section 1.01 of
              --------------------------------------------------
the Credit Agreement is hereby amended by inserting immediately before the
period at the end of the definition of "Indebtedness" the proviso";
provided that solely for the purposes of determining compliance with the
- -------------
covenants set forth in paragraphs (b), (f) and (g) of Section 6.12, Indebtedness
of the Borrower shall not include the Series A Bonds".

          3.  Amendment to Section 6.01(a) of the Credit Agreement. Section
              -----------------------------------------------------
6.01(a) of the Credit Agreement is hereby amended by:
<PAGE>

     (a)  deleting the phrase "in an aggregate principal amount not to exceed
$350,000,000 minus the principal amount of" in clause (ii) thereof and
substituting therefor the phrase "with gross proceeds therefrom not to exceed
$350,000,000 minus the gross proceeds from"; and

     (b)  deleting the phrase "in an aggregate principal amount" in each place
it appears in clause (v) thereof and substituting therefor the phrase "with
gross proceeds therefrom".

          4.  Acceptance.  For the purposes of determining whether debt issued
              -----------
on such terms constitutes Subordinated Debt, the Lenders party hereto hereby
accept the terms of the debt set forth in the description of notes attached
hereto as Exhibit A (or any terms substantially identical thereto and no more
adverse to the interests of the Lenders than are the terms set forth in such
description of notes).

          5.  No Other Amendments; Confirmation.  Except as expressly amended,
              ----------------------------------
waived, modified and supplemented hereby, the provisions of the Credit Agreement
are and shall remain in full force and effect.

          6.  Representations and Warranties.  The Borrower hereby represents
              -------------------------------
and warrants to the Administrative Agent and the Lenders as of the date hereof:

          (a) No Default or Event of Default has occurred and is continuing.

          (b) The execution, delivery and performance by the Borrower of this
Amendment have been duly authorized by all necessary corporate and other action
and do not and will not require any registration with, consent or approval of,
notice to or action by, any person (including any governmental agency) in order
to be effective and enforceable. The Credit Agreement as amended by this
Amendment constitutes the legal, valid and binding obligation of the Borrower,
enforceable against each in accordance with its terms, subject only to the
operation of the Bankruptcy Code and other similar statutes for the benefit of
debtors generally and to the application of general equitable principles.

          (c) All representations and warranties of the Borrower contained in
the Credit Agreement (other than representations or warranties expressly made
only on and as of the Effective Date) are true and correct as of the date
hereof.

          7.  Effectiveness.  This Amendment shall become effective only upon
              --------------
the satisfaction in full of the following conditions precedent:
<PAGE>

                                                                               3

          (a) The Administrative Agent shall have received counterparts hereof,
duly executed and delivered by the Borrower and the Required Lenders.

          (b) The Administrative Agent shall have received such opinions and
certificates from the Borrower and its counsel relating to this Amendment as it
may reasonably request in form reasonably satisfactory to its counsel.

          (c) The Administrative Agent shall have received proof, reasonably
satisfactory to it, that the Equity Commitments shall have been increased to
$30,000,000.

          8.  Expenses.  The Borrower agrees to reimburse the Administrative
              ---------
Agent for its out-of-pocket expenses in connection with this Amendment,
including the reasonable fees, charges and disbursements of Cravath, Swaine &
Moore, counsel for the Administrative Agent.

          9.  Governing Law; Counterparts.  (a) This Amendment and the rights
              ----------------------------
and obligations of the parties hereto shall be governed by, and construed and
interpreted in accordance with, the laws of the State of New York.

          (b) This Amendment may be executed by one or more of the parties to
this Amendment on any number of separate counterparts, and all of said
counterparts taken together shall be deemed to constitute one and the same
instrument.  This Amendment may be delivered by facsimile transmission of the
relevant signature pages hereof.


          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.


                                   TELECORP, PCS, INC.

                                       by
                                             /s/ Thomas H. Sullivan
                                           ----------------------------
                                           Name: Thomas H. Sullivan
                                           Title: CFO
<PAGE>

                                                                               4

                                   THE CHASE MANHATTAN BANK,

                                   by /s/ William E. Rottino
                                    ----------------------------------
                                        Name:  William E. Rottino
                                        Title: Vice President

                                   THE BANK OF NEW YORK,

                                   by /s/ Gerry Granovsky
                                    ----------------------------------
                                        Name:  Gerry Granovsky
                                        Title: Vice President



                                   BANK OF TOKYO MITSUBISHI TRUST COMPANY,

                                   by /s/ [SIGNATURE ILLEGIBLE]
                                   -----------------------------------
                                        Name:
                                        Title:


                                   BANKBOSTON, N.A.,

                                   by /s/ Jonathan D. Sharkey
                                   -----------------------------------
                                        Name:  Jonathan D. Sharkey
                                        Title: Vice President


                                   BANKERS TRUST COMPANY,

                                   by /s/ Gregory Shefrin
                                   -----------------------------------
                                        Name:  Gregory Shefrin
                                        Title: Principal


                                   CANADIAN IMPERIAL BANK OF COMMERCE,
                                   by CIBC Oppenheimer Corp., as Agent


                                   by /s/ [SIGNATURE ILLEGIBLE]
                                   -----------------------------------
                                        Name:
                                        Title:
<PAGE>

                                                                               5

                                   CIT GROUP/EQUIPMENT FINANCING,

                                   by
                                       /s/ J.E. Palmer
                                   ----------------------------------
                                         Name:  J.E. Palmer
                                         Title: Assistant Vice President


                                   CAPTIVA III FINANCE, LTD., as
                                   advised by Pacific Investment
                                   Management Company,

                                   by
                                       /s/ John H. Cullinane
                                   ----------------------------------
                                         Name:  John H. Cullinane
                                         Title: Director


                                   DELANO COMPANY, by Pacific Investment
                                   Management Company as its Investment
                                   Advisor,


                                   by
                                       /s/ Raymond G. Kennedy
                                   ----------------------------------
                                         Name:  Raymond G. Kennedy
                                         Title: Senior Vice President


                                   FLEET NATIONAL BANK,

                                   by
                                       /s/ William Weiss
                                   ----------------------------------
                                         Name:  William Weiss
                                         Title: Assistant Vice President


                                   GENERAL ELECTRIC CAPITAL CORPORATION,

                                   by
                                       /s/ Mark F. Mylon
                                   ----------------------------------
                                         Name:  Mark F. Mylon
                                         Title: Manager-Operations


                                   KZH APPALOOSA LLC,

                                   by
                                       /s/ Virginia Conway
                                   ----------------------------------
<PAGE>

                                                                               6

                                        Name:  Virginia Conway
                                        Title: Authorized Agent


                                   KZH IV LLC,

                                   by
                                      /s/ Virginia Conway
                                   ----------------------------------
                                        Name:  Virginia Conway
                                        Title: Authorized Agent

                                   KZH PAMCO LLC,

                                   by
                                      /s/ Virginia Conway
                                   ----------------------------------
                                        Name:  Virginia Conway
                                        Title: Authorized Agent


                                   PAMCO CAYMAN LTD., by Highland
                                   Capital Management, L.P., as
                                   Collateral Manager,

                                   by
                                      /s/ James Dondero
                                   ----------------------------------
                                        Name:  James Dondero, CFA, CPA
                                        Title: President


                                   SYNDICATED LOAN FUNDING TRUST, by
                                   Lehman Commercial Paper Inc., not in
                                   its individual capacity but solely
                                   as Asset Manager,

                                   by
                                      /s/ Michele Swanson
                                   ----------------------------------
                                        Name:  Michele Swanson
                                        Title: Authorized Signatory


                                   LEHMAN COMMERCIAL PAPER INC.

                                   by
                                      /s/ Michele Swanson
                                   ----------------------------------
                                        Name:  Michele Swanson
                                        Title: Authorized Signatory


                                   TORONTO DOMINION [TEXAS], INC.,
<PAGE>

                                                                               7

                                   by
                                      /s/ Anne C. Favoriti
                                   ----------------------------------
                                        Name:  Anne C. Favoriti
                                        Title: Vice President


                                   VAN KAMPEN PRIME RATE INCOME TRUST,

                                   by
                                      /s/ Jeffrey W. Maillet
                                   ----------------------------------
                                        Name:  Jeffrey W. Maillet
                                        Title: Senior Vice President &
                                               Director


                                   VAN KAMPEN SENIOR FLOATING RATE FUND,

                                   by
                                      /s/ Jeffrey W. Maillet
                                   ----------------------------------
                                        Name:  Jeffrey W. Maillet
                                        Title: Senior Vice President &
                                               Director

                                   VAN KAMPEN SENIOR INCOME TRUST,

                                   by
                                      /s/ Jeffrey W. Maillet
                                   ----------------------------------
                                        Name:  Jeffrey W. Maillet
                                        Title: Senior Vice President &
                                               Director

                                   MOUNTAIN CLO TRUST,

                                   by
                                      /s/ signature illegible
                                   ----------------------------------
                                        Name:
                                        Title:


                                   FRANKLIN FLOATING RATE TRUST,

                                   by
                                      /s/ signature illegible
                                   ----------------------------------
                                        Name:
                                        Title:
<PAGE>

                                                                               8

                                   MORGAN GUARANTY TRUST COMPANY OF NEW
                                   YORK,

                                   by
                                      /s/ Gery Sampere
                                   ----------------------------------
                                        Name:  Gery Sampere
                                        Title: Vice President


                                   DEBT STRATEGIES FUND, INC.

                                   by

                                   __________________________________
                                        Name:
                                        Title:



                                   MERRILL LYNCH ASSET MANAGEMENT,

                                   by

                                   __________________________________
                                        Name:
                                        Title:


                                   MERRILL LYNCH PRIME RATE PORTFOLIO, INC.,
                                   by

                                   __________________________________
                                        Name:
                                        Title:


                                   MERRILL LYNCH SENIOR FLOATING RATE FUND,
                                   INC.,

                                   by

                                   __________________________________
                                        Name:
                                        Title:


                                   SENIOR HIGH INCOME PORTFOLIO, INC.,

                                   by

                                   __________________________________
                                        Name:
                                        Title:

<PAGE>

                                                                  EXHIBIT 10.8.7


                                                                  CONFORMED COPY


     SIXTH AMENDMENT, dated as of April 7, 1999 (this "Amendment"), to the
                                                       ---------
Credit Agreement, dated as of July 17, 1998 (as amended, supplemented or
otherwise modified from time to time, the "Credit Agreement"), among TELECORP
                                           ----------------
PCS, INC., a corporation organized under the laws of the State of Delaware (the
"Borrower"), the several banks and other financial institutions and entities
 --------
from time to time parties thereto (the "Lenders"), and THE CHASE MANHATTAN BANK,
                                        -------
as administrative agent (the "Administrative Agent") for the Lenders.
                              --------------------

          WHEREAS, pursuant to the Credit Agreement, the Lenders have agreed to
make certain loans to the Borrower; and

          WHEREAS the Borrower has requested that certain provisions of the
Credit Agreement be modified in the manner provided for in this Amendment, and
the Lenders are willing to agree to such modifications as provided for in this
Amendment.


          NOW, THEREFORE, the parties hereto hereby agree as follows:

          1.  Defined Terms.  Capitalized terms used and not defined herein
              --------------
shall have the meanings given to them in the Credit Agreement, as amended
hereby.

          2.  Amendment to the Credit Agreement.  Section 6.13(a) of the Credit
              ----------------------------------
Agreement is hereby amended by deleting the amount "$30,000,000" immediately
before the semicolon at the end thereof and substituting therefor "$33,000,000
at any one time outstanding".

          3.  No Other Amendments; Confirmation.  Except as expressly amended,
              ----------------------------------
waived, modified and supplemented hereby, the provisions of the Credit Agreement
are and shall remain in full force and effect.
<PAGE>

          4.  Representations and Warranties.  The Borrower hereby represents
              -------------------------------
and warrants to the Administrative Agent and the Lenders as of the date hereof:

          (a) No Default or Event of Default has occurred and is continuing.

          (b) The execution, delivery and performance by the Borrower of this
Amendment have been duly authorized by all necessary corporate and other action
and do not and will not require any registration with, consent or approval of,
notice to or action by, any person (including any governmental agency) in order
to be effective and enforceable. The Credit Agreement as amended by this
Amendment constitutes the legal, valid and binding obligation of the Borrower,
enforceable against each in accordance with its terms, subject only to the
operation of the Bankruptcy Code and other similar statutes for the benefit of
debtors generally and to the application of general equitable principles.

          (c) All representations and warranties of the Borrower contained in
the Credit Agreement (other than representations or warranties expressly made
only on and as of the Effective Date) are true and correct as of the date
hereof.

          5.  Effectiveness.  This Amendment shall become effective only upon
              --------------
the satisfaction in full of the following conditions precedent:

          (a) The Administrative Agent shall have received counterparts hereof,
duly executed and delivered by the Borrower and the Required Lenders.

          (b) The Administrative Agent shall have received such opinions and
certificates from the Borrower and its counsel relating to this Amendment as it
may reasonably request in form reasonably satisfactory to its counsel.

          (c) The Administrative Agent shall have received proof, reasonably
satisfactory to it, that the Equity Commitments shall have been increased to
$30,000,000.

          6.  Expenses.  The Borrower agrees to reimburse the Administrative
              ---------
Agent for its out-of-pocket expenses in connection with this Amendment,
including the reasonable fees, charges and disbursements of Cravath, Swaine &
Moore, counsel for the Administrative Agent.

          7.  Governing Law; Counterparts.  (a) This Amendment and the rights
              ----------------------------
and obligations of the parties
<PAGE>

                                                                               3

hereto shall be governed by, and construed and interpreted in accordance with,
the laws of the State of New York.

          (b)  This Amendment may be executed by one or more of the parties to
this Amendment on any number of separate counterparts, and all of said
counterparts taken together shall be deemed to constitute one and the same
instrument. This Amendment may be delivered by facsimile transmission of the
relevant signature pages hereof.

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.


                                   TELECORP, PCS, INC.

                                       by
                                             /s/ Thomas H. Sullivan
                                          -------------------------------
                                          Name:  Thomas H. Sullivan
                                          Title: CFO

                                   THE CHASE MANHATTAN BANK,

                                       by
                                             /s/ William E. Rottino
                                          -------------------------------
                                          Name:  William E. Rottino
                                          Title: Vice President

                                   THE BANK OF NEW YORK,

                                       by
                                             /s/ Gerry Granovksy
                                          -------------------------------
                                          Name:  Gerry Granovsky
                                          Title: Vice President

                                   BANK OF TOKYO MITSUBISHI TRUST
                                   COMPANY,

                                       by
                                             /s/ Michael Deadder
                                          -------------------------------
                                          Name:  Michael Deadder
                                          Title: Vice President
<PAGE>

                                                                               4

                                   BANKBOSTON, N.A.,

                                     by
                                           /s/ Jonathan D. Sharkey
                                        ---------------------------------
                                            Name:  Jonathan D. Sharkey
                                            Title: Vice President


                                   BANKERS TRUST COMPANY,

                                        by
                                             /s/ Gregory Shefrin
                                        ---------------------------------
                                            Name:  Gregory Shefrin
                                            Title: Principal


                                        CANADIAN IMPERIAL BANK OF
                                        COMMERCE, by CIBC Oppenheimer
                                        Corp., as Agent,

                                        by
                                            /s/ Christine Harrigan
                                        ---------------------------------
                                            Name:  Christine Harrigan
                                            Title: Executive Director


                                        THE CIT GROUP/EQUIPMENT
                                        FINANCING, INC.

                                        by
                                            /s/ J.E. Palmer
                                        ---------------------------------
                                            Name:  J.E. Palmer
                                            Title: Assistant Vice President


                                        CAPTIVA III FINANCE, LTD., as
                                        advised by Pacific Investment
                                        Management Company,

                                        by
                                         /s/ [SIGNATURE ILLEGIBLE]
                                        ---------------------------------
                                            Name:
                                            Title:
<PAGE>

                                                                               5

                                        DELANO COMPANY, by Pacific
                                        Investment Management
                                        Company as its Investment Advisor,

                                        by
                                         /s/ [ILLEGIBLE SIGNATURE]
                                        ---------------------------------
                                            Name:
                                            Title:



                                        FLEET NATIONAL BANK,

                                        by
                                            /s/ William Weiss
                                        ---------------------------------
                                            Name:  William Weiss
                                            Title: Assistant Vice President


                                        GENERAL ELECTRIC CAPITAL CORPORATION,

                                        by
                                            /s/ Mark F. Mylon
                                        ---------------------------------
                                            Name:  Mark F. Mylon
                                            Title: Manager-Operations


                                        KZH APPALOOSA LLC,

                                        by
                                            /s/ Virginia Conway
                                        ---------------------------------
                                            Name:  Virginia Conway
                                            Title: Authorized Agent


                                        KZH IV LLC,

                                        by
                                            /s/ Virginia Conway
                                        ---------------------------------
                                            Name:  Virginia Conway
                                            Title: Authorized Agent
<PAGE>

                                                                               6

                                        KZH PAMCO LLC,

                                        by
                                            /s/ Virginia Conway
                                          -------------------------------
                                            Name:  Virginia Conway
                                            Title: Authorized Agent


                                        PAMCO CAYMAN LTD., by Highland
                                        Capital Management, L.P., as
                                        Collateral Manager,

                                        by
                                            /s/ Mark K. Okada
                                        ---------------------------------
                                            Name:  Mark K. Okada, CFA
                                            Title: Executive Vice President


                                        SYNDICATED LOAN FUNDING TRUST,
                                        by Lehman Commercial Paper
                                        Inc., not in its individual
                                        capacity but solely as Asset
                                        Manager,

                                        by
                                            /s/ Michele Swanson
                                        ---------------------------------
                                            Name:  Michele Swanson
                                            Title: Authorized Signatory


                                        LEHMAN COMMERCIAL PAPER INC.

                                        by
                                            /s/ Michele Swanson
                                        ---------------------------------
                                            Name:  Michele Swanson
                                            Title: Authorized Signatory


                                        TORONTO DOMINION [TEXAS], INC.,

                                        by
                                           /s/ Anne C. Favoriti
                                        ---------------------------------
                                            Name:  Anne C. Favoriti
                                            Title: Vice President
<PAGE>

                                                                               7

                                        VAN KAMPEN PRIME RATE INCOME
                                        TRUST,

                                        by
                                            /s/ Jeffrey W. Maillet
                                        ---------------------------------
                                            Name:  Jeffrey W. Maillet
                                            Title: Senior Vice President &
                                                   Director


                                        VAN KAMPEN SENIOR FLOATING RATE FUND,

                                        by
                                            /s/ Jeffrey W. Maillet
                                        ---------------------------------
                                            Name:  Jeffrey W. Maillet
                                            Title: Senior Vice President &
                                                   Director


                                        VAN KAMPEN SENIOR INCOME TRUST,

                                        by
                                            /s/ Jeffrey W. Maillet
                                        ---------------------------------
                                            Name:  Jeffrey W. Maillet
                                            Title: Senior Vice President &
                                                   Director

                                        MOUNTAIN CLO TRUST,

                                        by
                                            /s/ [SIGNATURE ILLEGIBLE]
                                        ---------------------------------
                                              Name:
                                              Title:


                                        FRANKLIN FLOATING RATE TRUST,

                                        by
                                            /s/ [SIGNATURE ILLEGIBLE]
                                        ---------------------------------

<PAGE>

                                                                               8

                                              Name:
                                              Title:


                                        MORGAN GUARANTY TRUST COMPANY
                                        OF NEW YORK,

                                        by
                                           /s/ Gery Sampere
                                        ---------------------------------
                                              Name:  Gery Sampere
                                              Title: Vice President


                                        DEBT STRATEGIES FUND, INC.

                                        by
                                             /s/ [SIGNATURE ILLEGIBLE]
                                        ---------------------------------
                                              Name:
                                              Title:



                                        MERRILL LYNCH ASSET MANAGEMENT,

                                        by
                                             /s/ [SIGNATURE ILLEGIBLE]
                                        ---------------------------------
                                              Name:
                                              Title:


                                        MERRILL LYNCH PRIME RATE
                                        PORTFOLIO, INC.,
                                        by
                                             /s/ [SIGNATURE ILLEGIBLE]
                                        ---------------------------------
                                              Name:
                                              Title:


                                        MERRILL LYNCH SENIOR FLOATING
                                        RATE FUND, INC.,

                                        by
                                             /s/ [SIGNATURE ILLEGIBLE]
                                        ---------------------------------
                                              Name:
                                              Title:
<PAGE>

                                                                               9

                                        SENIOR HIGH INCOME PORTFOLIO, INC.,

                                        by
                                           /s/ [SIGNATURE ILLEGIBLE]
                                        ----------------------------------
                                              Name:
                                              Title:

<PAGE>

                                                                  EXHIBIT 10.8.8


                                                                  EXECUTION COPY

  SEVENTH AMENDMENT, dated as of May 21, 1999 (this "Amendment"), to the Credit
                                                     ---------
Agreement, dated as of July 17, 1998 (as amended, supplemented or otherwise
modified from time to time, the "Credit Agreement"), among TELECORP PCS, INC., a
                                 ----------------
corporation organized under the laws of the State of Delaware (the "Borrower"),
                                                                    --------
the several banks and other financial institutions and entities from time to
time parties thereto (the "Lenders"), and THE CHASE MANHATTAN BANK, as
                           -------
administrative agent (the "Administrative Agent") for the Lenders.
                           --------------------


          WHEREAS, pursuant to the Credit Agreement, the Lenders have agreed to
make certain loans to the Borrower; and

          WHEREAS the Borrower has requested that certain provisions of the
Credit Agreement be modified in the manner provided for in this Amendment, and
the Lenders are willing to agree to such modifications as provided for in this
Amendment.


          NOW, THEREFORE, the parties hereto hereby agree as follows:

          1.  Defined Terms.  Capitalized terms used and not defined herein
              --------------
shall have the meanings given to them in the Credit Agreement, as amended
hereby.

          2.  Amendments to the Credit Agreement.
              -----------------------------------

          (a)  Section 1.01 of the Credit Agreement is hereby amended by:

          (i)  deleting the definition of "Committed Equity" and substituting
     the following therefor:

               "`Committed Equity' means irrevocable unconditional binding
                 ----------------
          commitments to purchase stock of the Borrower for cash pursuant to (i)
          the Securities Purchase Agreement (in an amount not in excess of
          $128,000,000), (ii) the San Juan
<PAGE>

                                                                               2

          Purchase Agreement (in an amount not in excess of $39,996,000), (iii)
          the Viper Purchase Agreement (in an amount not in excess of
          $33,000,000; provided, in each case, that (x) such irrevocable binding
                       --------
          commitments are on terms and from investors acceptable to the Required
          Lenders (it being agreed that the investors under the Securities
          Purchase Agreement are acceptable), (y) such irrevocable unconditional
          binding commitments are by their terms expressly assignable to the
          Collateral Agent for the benefit of the Lenders and (z) the applicable
          Loan Party has assigned to the Collateral Agent for the benefit of the
          Lenders as collateral the right to enforce such commitments and the
          Collateral Agent has a perfected first priority security interest in
          such commitments."

          (ii)  deleting "the Donnelly Marketing Service Population Guide
     published in 1995." at the end of the definition of "Pops" and substituting
     therefor "the most recently published edition of the Kagan Guide."; and

          (iii)  deleting the definition of "San Juan Acquisition" and
     substituting the following therefor:

               "`San Juan Acquisition' means the merger of Puerto Rico
                 --------------------
          Acquisition Corp. into the Borrower and the purchase by the Borrower
          from AW of 20 MHz of A Block PCS licenses covering the markets and
          pops set forth in Part D of Schedule I hereto together with related
          assets for consideration consisting of (x) approximately $95,000,000
          in cash, (y) the assumption of the San Juan Assumed Liabilities and
          (z) reimbursement to AW of $3,200,000 of microwave clearing costs
          incurred by AW with respect to clearing other users from frequencies
          relevant to the licenses the Borrower is acquiring from AW; provided
                                                                      --------
          that, (i) such acquisition is consummated on terms and conditions
          satisfactory to the Administrative Agent, (ii) in connection
          therewith, certain of the Equity Participants or other investors
          reasonably acceptable to the Administrative Agent (the "San Juan
          Investors"), purchase or commit to purchase, on the terms set forth in
          the San Juan Purchase
<PAGE>

                                                                               3

          Agreement, from the Borrower Common Stock and Preferred Stock for cash
          consideration of at least $39,700,000 and (iii) in connection
          therewith, AW purchases from the Borrower Preferred Stock for cash
          consideration of at least $40,000,000."

          (iv)  deleting the definition of "PCS Documents" and substituting the
     following therefor:

               "`PCS Documents' means the Securities Purchase Agreement and each
                 -------------
          of the documents that is an exhibit thereto (including the Network
          License Agreement), the San Juan Purchase Agreement and the Viper
          Purchase Agreement."

          (v)  inserting in the appropriate alphabetical order the following
     definitions:

               "`San Juan Assumed Liabilities' means rental and incidental
                 ----------------------------
          liabilities under real estate leases of AW acquired in connection with
          the San Juan Acquisition."

               "`San Juan Purchase Agreement' means the Puerto Rico Stock
                 ---------------------------
          Purchase Agreement by and among the San Juan Investors, the Borrower,
          and the other parties thereto dated as of March 30, 1999."

               "`Secured Base Station' means any Base Station located in Puerto
                 --------------------
          Rico in which the Collateral Agent, for the benefit of the Secured
          Parties, has a first priority perfected security interest pursuant to
          the Security Documents."

               "`Viper Purchase Agreement' means the Stock Purchase Agreement by
                 ------------------------
          and among the Investors therein, the Borrower, and the other parties
          thereto dated as of March 22, 1999."

          (b)  Section 3.12(a) of the Credit Agreement is hereby amended by
deleting "directly owned by the Borrower" and substituting therefor "directly
owned by the Borrower or any Wholly-Owned Restricted Subsidiary".

          (c)  Section 3.12(e) of the Credit Agreement is hereby amended by
inserting immediately before the period at
<PAGE>

                                                                               4

the end thereof "or, in the case of Secured Base Stations, any Restricted
Subsidiary".

          (d)  Section 3.13 is hereby amended by deleting clause (b) thereof in
its entirety and substituting therefor "in the case of the Real Property
Subsidiary, any liabilities expressly permitted pursuant to Section 6.13(b)".

          (e)  Section 5.13(b) of the Credit Agreement is hereby amended by (i)
inserting after the words "any Base Station" the parenthetical "(other than a
Secured Base Station)" and (ii) deleting the words "Excluded Real Property
Equipment" and substituting therefor "Excluded Real Property-Related
Equipment.".

          (f)  Section 6.05(n) is hereby amended by inserting immediately before
the period at the end thereof "at any time outstanding".

          (g)  Section 6.12(a) is hereby amended by deleting "Unfunded
Commitments (as defined in the Securities Purchase Agreement) have" and
substituting "Committed Equity has" therefor.

          (h)  Article VII of the Credit Agreement is hereby amended by:

          (i)  deleting each reference to "the Borrower or any Subsidiary" in
     paragraphs (h), (i) and (k) thereof and substituting therefor "any Loan
     Party"; and

          (ii) inserting the following after paragraph (y) thereof:

               "(z) the failure of any party to the San Juan Purchase Agreement
          or the Viper Purchase Agreement to comply with any funding or
          contribution obligation under such Agreement and such failure shall
          continue unremedied for a period of 30 days;"

          (i)  Section 9.01 of the Credit Agreement is hereby deleting clause
(a) thereof in its entirety and substituting the following therefor:
<PAGE>

                                                                               5

               "(a) if the Borrower, to it at 1110 North Globe Rd., Suite 800,
     Arlington, VA 22201, Attention of Thomas Sullivan (Telecopy No. (703) 236-
     1101); with a copy to McDermott, Will & Emery, 28 State Street, Boston, MA
     02109, Attention of John B. French (Telecopy No. (617) 535-3800);".

          3.  Waiver and Consent.  (a) The Lenders hereby waive (i) any
              -------------------
misrepresentation prior to the effective date of this Amendment by the Borrower
with respect to the representation and warranty made in Section 3.12(a) of the
Credit Agreement but only to extent there would not have been any
misrepresentation of Section 3.12(a) as amended hereby and (ii) any breach of
Section 5.01(e) resulting from the Borrower failing to deliver the 1999
consolidated budget prior to May 14, 1999.

          (b)  The Lenders hereby consent and agree that One Liberty Fund IV,
L.P. is an acceptable investor for purposes of the proviso in the definition of
"Committed Equity".

          4.  No Other Amendments; Confirmation.  Except as expressly amended,
              ----------------------------------
waived, modified and supplemented hereby, the provisions of the Credit Agreement
are and shall remain in full force and effect.

          5.  Representations and Warranties.  The Borrower hereby represents
              -------------------------------
and warrants to the Administrative Agent and the Lenders as of the date hereof:

          (a) No Default or Event of Default has occurred and is continuing.

          (b) The execution, delivery and performance by the Borrower of this
     Amendment have been duly authorized by all necessary corporate and other
     action and do not and will not require any registration with, consent or
     approval of, notice to or action by, any person (including any governmental
     agency) in order to be effective and enforceable.  The Credit Agreement as
     amended by this Amendment constitutes the legal, valid and binding
     obligation of the Borrower, enforceable against each in accordance with its
     terms, subject only to the operation of the Bankruptcy Code and other
     similar statutes for the benefit of debtors generally and to the
     application of general equitable principles.
<PAGE>

                                                                               6

          (c) All representations and warranties of the Borrower contained in
     the Credit Agreement (other than representations or warranties expressly
     made only on and as of the Effective Date) are true and correct as of the
     date hereof.

          6.  Effectiveness.  This Amendment shall become effective only upon
              --------------
the satisfaction in full of the following conditions precedent:

          (a) The Administrative Agent shall have received counterparts hereof,
     duly executed and delivered by the Borrower, and the Requisite Lenders; and

          (b) The Administrative Agent shall have received such opinions and
     certificates from the Borrower and its counsel as it may reasonably request
     in form reasonably satisfactory to its counsel.

          7.  Expenses.  The Borrower agrees to reimburse the Administrative
              ---------
Agent for its out-of-pocket expenses in connection with this Amendment,
including the reasonable fees, charges and disbursements of Cravath, Swaine &
Moore, counsel for the Administrative Agent.

          8.  Governing Law; Counterparts.  (a) This Amendment and the rights
              ----------------------------
and obligations of the parties hereto shall be governed by, and construed and
interpreted in accordance with, the laws of the State of New York.

          (b) This Amendment may be executed by one or more of the parties to
this Amendment on any number of separate counterparts, and all of said
counterparts taken together shall be deemed to constitute one and the same
instrument.  This Amendment may be delivered by facsimile transmission of the
relevant signature pages hereof.
<PAGE>

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.


                                            TELECORP, PCS, INC.

                                            by________________________________
                                            Name:
                                            Title:


                                            THE CHASE MANHATTAN BANK,

                                            by_______________________________
                                            Name:
                                            Title:


                                            TORONTO DOMINION [TEXAS], INC.,

                                            by_______________________________
                                            Name:
                                            Title:


                                            BANKERS TRUST COMPANY,

                                            by_______________________________
                                            Name:
                                            Title:


                                            THE BANK OF NEW YORK,

                                            by_______________________________
                                            Name:

<PAGE>

                                      Title:


                                      CANADIAN IMPERIAL BANK OF COMMERCE,
                                      by CIBC Oppenheimer Corp., as Agent,

                                      by_________________________________
                                      Name:
                                      Title:


                                      MORGAN GUARANTY TRUST COMPANY OF NEW YORK,

                                      by_________________________________
                                      Name:
                                      Title:


                                      GENERAL ELECTRIC CAPITAL CORPORATION,

                                      by_________________________________
                                      Name:
                                      Title:


                                      LEHMAN COMMERCIAL PAPER INC.,

                                      by_________________________________
                                      Name:
                                      Title:

                                      SYNDICATED LOAN FUNDING TRUST, by
                                      Lehman Commercial Paper Inc., not in its
                                      individual capacity but soley as Asset
                                      Manager,

                                      by_________________________________
                                      Name:
                                      Title:
<PAGE>

                                     BANK OF TOKYO-MITSUBISHI TRUST COMPANY,

                                     by_________________________________
                                     Name:
                                     Title:


                                     BANKBOSTON, N.A.,

                                     by_________________________________
                                     Name:
                                     Title:


                                     FLEET NATIONAL BANK,

                                     by_________________________________
                                     Name:
                                     Title:

                                     FRANKLIN FLOATING RATE TRUST,

                                     by_________________________________
                                     Name:
                                     Title:


                                     MERRILL LYNCH ASSET MANAGEMENT,

                                     by_________________________________
                                     Name:
                                     Title:


                                     SENIOR HIGH INCOME PORTFOLIO, INC.,

                                     by_________________________________
                                     Name:
<PAGE>

                                     Title:


                                     DEBT STRATEGIES FUND, INC.,

                                     by_________________________________
                                     Name:
                                     Title:

                                     MERRILL LYNCH PRIME RATE PORTFOLIO,
                                     INC.,

                                     by_________________________________
                                     Name:
                                     Title:

                                     MERRILL LYNCH SENIOR FLOATING RATE
                                     FUND, INC.,

                                     by_________________________________
                                     Name:
                                     Title:


                                     THE CIT GROUP/EQUIPMENT FINANCING, INC.,

                                     by_________________________________
                                     Name:
                                     Title:

                                     CAPTIVA III FINANCE, LTD., as advised
                                     by Pacific Investment Management Company,

                                     by_________________________________
                                     Name:
                                     Title:

                                     DELANO COMPANY, by Pacific Investment
                                     Management Company as its Investment
                                     Advisor,
<PAGE>

                                     by_________________________________

                                     Name:
                                     Title:

                                     KZH APPALOOSA LLC,

                                     by_________________________________
                                     Name:
                                     Title:

                                     KZH IV LLC,

                                     by_________________________________
                                     Name:
                                     Title:

                                     KZH PAMCO LLC,

                                     by_________________________________
                                     Name:
                                     Title:

                                     PAMCO CAYMAN LTD., by Highland Capital
                                     Management, L.P., as Collateral Manager,

                                     by_________________________________

                                     Name:
                                     Title:

                                     VAN KAMPEN PRIME RATE INCOME TRUST,

                                     by_________________________________
                                     Name:
                                     Title:

                                     VAN KAMPEN SENIOR FLOATING RATE FUND,
<PAGE>

                                     by_________________________________
                                     Name:
                                     Title:

                                     VAN KAMPEN SENIOR INCOME TRUST,

                                     by_________________________________
                                     Name:
                                     Title:

                                     MOUNTAIN CLO TRUST,

                                     by_________________________________
                                     Name:
                                     Title:

<PAGE>

                                                                  EXHIBIT 10.9.1

- --------------------------------------------------------------------------------

                            STOCK PURCHASE AGREEMENT

                                 by and among

                              TELECORP PCS, INC.,

                            AT&T WIRELESS PCS, INC.

                                      and

                             CASH EQUITY INVESTORS

                                 named herein

                          Dated as of March 22, 1999


- --------------------------------------------------------------------------------
<PAGE>

                           STOCK PURCHASE AGREEMENT
                           ------------------------

     STOCK PURCHASE AGREEMENT, dated as of March 22, 1999, by and among TeleCorp
PCS. Inc., a Delaware corporation (the "Company") AT&T Wireless PCS, Inc., a
                                        -------
Delaware corporation ("AT&T PCS") and the investors referred to on Schedule I
(individually, a "Cash Equity Investor" and, collectively, the "Cash Equity
                  --------------------                          -----------
Investors" and together with AT&T PCS, the "Investors").
- ---------

                             W I T N E S S E T H:
                             -------------------

          WHEREAS, the Cash Equity Investors are stockholders of the Company;

          WHEREAS the Company is seeking to raise up to $25,000,000 from
investors  to fund its participation in the Reauction conducted by the Federal
Communications Commission ("FCC") for the sale of broadband Personal
Communications Services ("PCS") licenses (the "PCS Licenses") in the "C" Block
(the "PCS "C" Block Auction"), as set forth in Parts 1 and 24 of Title 47 of the
Code of Federal Regulations (the "CFR"), scheduled to commence on March 23,
1999;

          WHEREAS, the Cash Equity Investors are committing to invest up to
$25,000,000 in the Company at a Closing (hereinafter defined) in consideration
of the issuance by the Company of certain additional securities of the Company,
and the Company wishes to issue and sell the securities to each of the Cash
Equity Investors all on the terms and subject to the conditions herein set
forth;

          WHEREAS, AT&T PCS desires to purchase certain securities of the
Company in an amount set forth herein, in exchange for the cancellation of
certain Series D Promissory Notes of the Company held by AT&T PCS, and on the
same terms and conditions as the Cash Equity Investors;

          WHEREAS, the Investors' subscription for and purchase of such
additional securities hereunder shall satisfy in full each Investor's preemptive
rights to purchase securities of the Company under the Stockholders' Agreement,
as hereinafter defined;

          WHEREAS, the additional securities to be acquired by the Investors
hereunder will be subject to the provisions of the Stockholders' Agreement as
after acquired Equity Securities, as such term is defined in the Stockholders'
Agreement;

          NOW, THEREFORE, in consideration of the promises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the parties agree as follows:
<PAGE>

                                   ARTICLE I

                                  DEFINITIONS

          For purposes of this Agreement:

          "Affiliate" means, with respect to any Person, any other Person that
           ---------
directly, or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with that Person.  For purposes of this
definition, "control" (including the terms "controlling" and "controlled") means
             -------                        -----------       ----------
the power to direct or cause the direction of the management and policies of a
Person, directly or indirectly, whether through the ownership of securities or
partnership or other ownership interests, by contract or otherwise.

          "Aggregate Commitment" means, with respect to each Cash Equity
           --------------------
Investor and AT&T PCS, the amount set forth opposite its name on Schedule I
under the heading "Aggregate Commitment."

          "Agreement" means this Stock Purchase Agreement, as the same may be
           ---------
amended, modified or supplemented in accordance with the terms hereof.

          "AT&T PCS" has the meaning set forth in the preamble.
           --------

          "AT&T Securities" means shares of the Company's Series D Preferred
           ---------------
Stock and Series F Preferred Stock to be purchased by AT&T PCS under this
Agreement.

          "Bidding Subsidiary" has the meaning set forth in Section 2.5.
           ------------------

          "Business Day" means any day other than a Saturday, Sunday or a legal
           ------------
holiday in New York, New York or any other day on which commercial banks in New
York, New York are authorized by law or governmental decree to close.

          "Capital Stock" means any and all shares, interests, participations or
           -------------
other equivalents (however designated) of capital stock of a corporation, and
any and all equivalent ownership interests in a Person (other than a
corporation) and any and all warrants, rights or options to purchase or
subscribe for any of the foregoing or any warrants, rights or options to
purchase or subscribe for any such warrants, rights or options.

          "Cash Equity Investor" has the meaning set forth in the preamble.
           --------------------

          "Cash Equity Investors' Securities" means shares of the Company's
           ---------------------------------
Voting Common Stock and Series C Preferred Stock to be purchased by each of the
Cash Equity Investors under this Agreement.

                                      -2-
<PAGE>

          "Claim" has the meaning set forth in Section 8.5(a).
           -----

          "Class C Common Stock" means the Class C Common Stock, par value $.01
           --------------------
per share, of the Company.

          "Class D Common Stock" means the Class D Common Stock, par value $.01
           --------------------
per share, of the Company.

          "Closing" has the meaning set forth in Section 3.1.
           -------

          "Closing Date" has the meaning set forth in Section 3.1.
           ------------

          "Common Stock" means, collectively, Voting Preference Stock, the
           ------------
Tracked Common Stock, the Voting Common Stock and the Non-Voting Common Stock.

          "Company" has the meaning set forth in the preamble.
           -------

          "Confidential Information" means any and all information regarding the
           ------------------------
business, finances, operations, products, services and customers of the Person
specified and its Affiliates, in written or oral form or in any other medium.

          "Consents" means all consents and approvals of Governmental
           --------
Authorities or other third parties necessary to authorize, approve or permit the
parties hereto to consummate the Transactions and for the Company to operate its
business after the Closing Date as currently contemplated.

          "Credit Agreement" means the agreement among the Company, the lenders
           ----------------
and the agents referred to therein, as of July 17, 1998, providing a credit
facility having aggregate commitments of $525 million, as amended to date and as
the same may be further amended, modified or supplemented in accordance with the
terms thereof.

          "Credit Documents" means the Credit Agreement and all agreements,
           ----------------
instruments and documents executed and delivered pursuant thereto, as the same
may from time to time be amended, modified or supplemented in accordance with
the terms thereof.

          "Expended Amount" means the Company's net investment in the Bidding
           ---------------
Subsidiary, i.e., the excess of (i) the aggregate amount invested by the Company
and its Subsidiaries in the Bidding Subsidiary over (ii) the aggregate amount of
such investment returned to TeleCorp Holding Corp, Inc. by the Bidding
Subsidiary before the Closing Date.

          "FCC" means the Federal Communications Commission or similar
           ---
regulatory authority established in replacement thereof.

                                      -3-
<PAGE>

          "FCC Law" means the Communications Act of 1934, as amended, including
           -------
as amended by the Telecommunications Act of 1996, and the rules, regulations and
policies promulgated thereunder.

          "Financing" has the meaning set forth in the SBIC Regulations.
           ---------

          "Governmental Authority" means a Federal, state or local court,
           ----------------------
legislature, governmental agency (including, without limitation, the United
States Department of Justice), commission or regulatory or administrative
authority or instrumentality.

          "Indemnified Party" has the meaning set forth in Section 8.4(a).
           -----------------

          "Indemnifying Party" has the meaning set forth in Section 8.4(a).
           ------------------

          "Investors" has the meaning set forth in the preamble.
           ---------

          "Law" means applicable common law and any statute, ordinance, code or
           ---
other law, rule, permit, permit condition, regulation, order, decree, technical
or other standard, requirement or procedure enacted, adopted, promulgated,
applied or followed by any Governmental Authority.

          "Lenders" has the meaning set forth in Section 10.5.
           -------

          "License" means a license, permit, certificate of authority, waiver,
           -------
approval, certificate of public convenience and necessity, registration or other
authorization, consent or clearance to construct or operate a facility,
including any emissions, discharges or releases therefrom, or to transact an
activity or business, to construct a tower or to use an asset or process, in
each case issued or granted by a Governmental Authority.

          "License Transfer" means the assignment of any License requiring the
           ----------------
Consent of the FCC or any equivalent state Governmental Authority.

          "Lien" means, with respect to any asset, any mortgage, lien, pledge,
           ----
charge, security interest, right of first refusal or right of others therein, or
encumbrance of any nature whatsoever in respect of such asset.

          "Losses" has the meaning set forth in Section 8.2.
           ------

          "Management Shareholders" shall mean Gerald T. Vento and Thomas H.
           -----------------------
Sullivan.

          "Material Adverse Effect" means a material adverse effect on the
           -----------------------
business, financial condition, assets, liabilities or results of operations or
prospects of the Person specified.

          "New York Courts" has the meaning set forth in Section 10.6.
           ---------------

                                 -4-
<PAGE>

          "Non-Voting Common Stock" means the Company's Class B Non-Voting
           -----------------------
Common Stock, par value $.01 per share.

          "PCS" has the meaning set forth in the preamble.
           ---

          "PCS License" has the meaning set forth in the recitals.
           -----------

          "PCS "C" Block Auction" has the meaning set forth in the recitals.
           ---------------------

          "Person" means an individual, corporation, partnership, limited
           ------
liability company, association, joint stock company, Governmental Authority,
business trust, unincorporated organization, or other legal entity.

          "Preferred Stock" means the shares of Series A Preferred Stock, Series
           ---------------
B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E
Preferred Stock, Series F Preferred Stock and Senior Common Stock.

          "Purchase Commitment" means, with respect to each Cash Equity Investor
           -------------------
and AT&T PCS, its ratable portion of the Expended Amount (but not more than the
amount of its Aggregate Commitment).

          "Regulatory Problem" means, with respect to any SBIC Holder providing
           ------------------
Financing under this Agreement, any set of facts or circumstances wherein it has
been asserted by any governmental regulatory agency (or any SBIC Holder
reasonably believes in good faith that there is a substantial risk of such
assertion) that such SBIC Holder and its Affiliates are not entitled to hold, or
exercise any significant right with respect to, the Securities.

          "Restated Certificate" means the Third Amended and Restated
           --------------------
Certificate of Incorporation of the Company, dated as of the Closing Date.

          "SBA" has the meaning set forth in Section 6.5(b).
           ---

          "SBIC" means a small business investment company licensed under the
           ----
SBIC Act.

          "SBIC Act" means the Small Business Investment Company Act of 1958, as
           --------
amended.

          "SBIC Holder" means each Cash Equity Investor that is an SBIC.
           -----------

          "SBIC Regulations" means the SBIC Act and the regulations issued
           ----------------
thereunder as set forth in 13 CFR 107 and 121, as amended.

          "Section 8.2 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.2.

                                      -5-
<PAGE>

          "Section 8.3 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.3.

          "Securities" means the Cash Equity Investors' Securities and AT&T
           ----------
Securities being issued hereunder, together with any shares of Preferred Stock
or Common Stock issued upon conversion of or delivered in substitution or
exchange for any of the foregoing.

          "Securities Act" means the Securities Act of 1933, as amended.
           --------------

          "Senior Common Stock" means the Senior Common Stock, par value $.01
           -------------------
per share, of the Company.

          "Series A Preferred Stock" means the Series A Preferred Stock, par
           ------------------------
value $.01 per share, of the Company.

          "Series B Preferred Stock" means the Series B Preferred Stock, par
           ------------------------
value $.01 per share, of the Company.

          "Series C Preferred Stock" means the Series C Preferred Stock, par
           ------------------------
value $.01 per share, of the Company.

          "Series D Notes" means the Series D Senior Subordinated convertible
           --------------
notes of the Company to be issued to AT&T PCS pursuant to that certain Asset
Purchase Agreement to be entered into by and between the Company and AT&T PCS
pursuant to which the Company and/or one or more of its direct or indirect
wholly-owned Subsidiaries will acquire from AT&T PCS a portion of a certain PCS
License for the San Juan, Puerto Rico market.

          "Series D Preferred Stock" means the Series D Preferred Stock, par
           ------------------------
value $.01 per share, of the Company.

          "Series E Preferred Stock" means the Series E Preferred Stock, par
           ------------------------
value $.01 per share, of the Company.

          "Series F Preferred Stock" means the Series F Preferred Stock, par
           ------------------------
value $.01 per share, of the Company.

          "Stock Exchange" has the meaning set forth in Section 2.3.
           --------------

          "Stockholders' Agreement" means the Stockholders' Agreement, by and
           -----------------------
among the Company, AT&T PCS, the Cash Equity Investors, and the other parties
named therein, as stockholders, as the same may be amended, modified or
supplemented in accordance with the terms thereof.

          "Subsidiary" shall mean, with respect to any Person, a corporation or
           ----------
other entity of which 50% or more of the voting power or the voting equity
securities or equity interest is owned, directly or indirectly, by such Person.

                                      -6-
<PAGE>

          "Tracked Common Stock" means, collectively, the Class C Common Stock
           --------------------
and the Class D Common Stock.

          "Transactions" means the transactions contemplated by this Agreement.
           ------------

          "Voting Common Stock" means the Class A Voting Common Stock, par value
           -------------------
$.01 per share, of the Company.

          "Voting Preference Stock" means the Voting Preference Stock, par value
           -----------------------
$.01 per share, of the Company.

          When a reference is made in this Agreement to an Article or a Section,
such reference shall be to an Article or a Section of this Agreement unless
otherwise indicated. Unless the context otherwise requires, the terms defined
hereunder shall have the meanings therein specified for all purposes of this
Agreement, applicable to both the singular and plural forms of any of the terms
defined herein. Whenever the words "include," "includes" or "including" are used
in this Agreement, they shall be deemed to be followed by the words "without
limitation." The use of a gender herein shall be deemed to include the neuter,
masculine and feminine genders whenever necessary or appropriate. Whenever the
word "herein" or "hereof" is used in this Agreement, it shall be deemed to refer
to this Agreement and not to a particular Section of this Agreement unless
expressly stated otherwise.

                                  ARTICLE II

                               PURCHASE AND SALE
                               -----------------

                OF SECURITIES; CERTAIN RESTRICTIONS ON TRANSFER
                -----------------------------------------------

     2.1. Purchase Commitments. (a) Upon the terms and subject to the conditions
          --------------------
hereof and in reliance upon the representations, warranties and agreements
herein contained: (i) effective upon the execution and delivery hereof, each
Cash Equity Investor hereby irrevocably commits, severally and not jointly, to
purchase from the Company Cash Equity Investors' Securities in an amount equal
to its Aggregate Commitment, and (ii) at the Closing, each Cash Equity Investor
shall purchase from the Company Cash Equity Investors' Securities, in an amount
equal to its Purchase Commitment, the amount of which will be determined in
accordance herewith. In the event that the combined Aggregate Commitments of all
of the Cash Equity Investors exceeds the total amount of proceeds required by
the Company for the purposes set forth in Section 2.5 hereof, at the Closing
each Cash Equity Investors' Aggregate Commitment shall be reduced
proportionately.

          (b) Each Cash Equity Investor acknowledges and agrees that, if the
Closing occurs, its obligation to purchase Cash Equity Investors' Securities in
an amount up to its Aggregate Commitment constitutes an irrevocable and
unconditional obligation (subject, however, to the rights of the Cash Equity
Investors set forth in that certain bidding letter dated as of March 22, 1999 by
and among the Company and the Cash Equity Investors) and shall not be subject to
counterclaim, set-off, deduction or defense, or to abatement, suspension,
deferment, diminution or reduction for any reason

                                      -7-
<PAGE>

whatsoever. By way of amplification, and not in limitation of the foregoing,
each Cash Equity Investor further acknowledges and agrees to fulfill its
obligations in respect of its Aggregate Commitment regardless of any claims it
may have against any other Person (whether or not related to the Transactions)
and regardless of the existence or non-existence of any facts or circumstances
(whether or not such facts and circumstances existed on the date hereof or the
Closing Date or were then known by it).

          (c) Based on the representations and warranties of AT&T PCS contained
herein, the Company hereby agrees to issue and sell to AT&T PCS, and, subject to
all of the terms and conditions hereof and in reliance on the representations
and warranties of the Company set forth or referred to herein, (i) effective
upon the execution and delivery hereof, AT&T PCS hereby irrevocably commits to
purchase from the Company, the AT&T Securities in an amount equal to its
Aggregate Commitment and (ii) at the Closing, AT&T PCS shall purchase from the
Company the AT&T Securities in an amount equal to its Purchase Commitment. The
consideration for the AT&T Securities purchased by AT&T PCS shall be at the
option of AT&T PCS, either the cancellation by AT&T PCS of certain Series D
Notes, at the option of AT&T PCS, in an amount equal to its Purchase Commitment
or cash.

     2.2. Purchase and Sale of Securities at Closing. Upon the terms and subject
          ------------------------------------------
to the conditions hereof and in reliance upon the representations, warranties
and agreements herein contained, at the Closing, in consideration of the
Transactions, the Company shall issue, sell and deliver to AT&T PCS the number
of shares of AT&T Securities, and to each Cash Equity Investor, the number of
shares of Cash Equity Investors' Securities, determined by dividing its Purchase
Commitment by $1,000.

     2.3. Management Benefit Plan, Management Shareholders.
          ------------------------------------------------

               (a) If and when the Bidding Subsidiary is merged into TeleCorp
Holdings Corp., Inc., a direct wholly-owned subsidiary of the Company, the
Management Stockholders shall be entitled, as a consequence of such merger, to
exchange all of the capital stock of the Bidding Subsidiary owned by such
Management Stockholders for the shares of the Company's Voting Common Stock and
Series E Preferred Stock set forth on Schedule II (the "Stock Exchange").  At
such time, additional shares of Voting Common Stock and Series E Preferred Stock
shall be added to the Company's 1998 Restricted Stock Plan as set forth on
Schedule II.  The Company's Compensation Committee shall grant such restricted
shares pursuant to such Plan to the Company's employees, other than the
Management Stockholders.

               (b) At the Closing, the parties hereby agree that the Company
shall establish a stock option plan to be funded with shares of the Company's
Voting Common Stock determined by subtracting the shares of Voting Common Stock
issued pursuant to Section 2.3(a) from 7,500, such shares to be issued to the
Company's directors, senior management and employees as determined by the
Company's Compensation Committee, upon terms and conditions determined by the
Compensation Committee.

                                      -8-
<PAGE>

     2.4. Restrictive Legends.  Each certificate representing Securities
          -------------------
(including Securities originally issued hereunder or delivered upon conversion
of Preferred Stock or Common Stock, or delivered in substitution or exchange for
any of the foregoing) will bear a legend, in addition to any legends required by
the Stockholders' Agreement or otherwise required by Law, reading substantially
as follows until such Securities have been sold pursuant to an effective
registration statement under the Securities Act, Rule 144 under the Securities
Act, or an opinion of counsel reasonably satisfactory in form and substance to
the Company and otherwise in full compliance with any other applicable
restrictions on transfer, including those contained in this Agreement and the
Stockholders' Agreement:

           "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE BEEN
     ACQUIRED FOR INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE
     SECURITIES ACT OF 1933, AS AMENDED (THE `ACT'), OR UNDER ANY
     STATE SECURITIES OR `BLUE SKY' LAWS. SAID SECURITIES MAY NOT BE
     SOLD, TRANSFERRED, ASSIGNED, PLEDGED, HYPOTHECATED OR OTHERWISE
     DISPOSED OF, UNLESS AND UNTIL REGISTERED UNDER THE ACT AND THE
     RULES AND REGULATIONS THEREUNDER AND ALL APPLICABLE STATE
     SECURITIES OR `BLUE SKY' LAWS OR EXEMPTED THEREFROM UNDER THE ACT
     AND ALL APPLICABLE STATE SECURITIES OR `BLUE SKY' LAWS."

     2.5. Use of Proceeds.  The Company shall use the net cash proceeds of its
          ---------------
sale of Securities to the Investors hereunder to fund the Company's capital
contribution to a subsidiary (the "Bidding Subsidiary") for the purchase of PCS
Licenses at the PCS `C' Block Auction, to pay fees and expenses incurred in
connection with the Transactions, and for general and working capital purposes.

                                  ARTICLE III

                                    CLOSING

     3.1. Time and Place of Closing. Upon the terms and subject to the
          -------------------------
conditions hereof, the closing of the Transactions (the "Closing") shall take
                                                         -------
place at the offices of McDermott, Will & Emery, 50 Rockefeller Plaza, 11th
Floor, New York, New York, at 10:00 a.m. local time on the earlier of (a) the
tenth Business Day following the date the Company is awarded any PCS Licenses at
the PCS "C" Block Auction or (b) August 12, 1999, or at such other place and/or
time and/or on such other date as the parties may agree or as may be necessary
to permit the fulfillment or waiver of the conditions set forth in Article VII
(the "Closing Date"). The Closing shall be deemed to have occurred as of 12:01
      ------------
a.m. on the Closing Date.

     3.2. Closing Actions and Deliveries.  Upon the terms and subject to the
          ------------------------------
satisfaction or waiver by the appropriate parties, if applicable, of the
conditions set forth in Article VII, to effect

                                      -9-
<PAGE>

the purchase and sale of the Securities and consummate the other Transactions,
the parties shall on the Closing Date take the following actions:

          (a)  Cash Equity Investor Purchases. Each Cash Equity Investor shall
               -------------------------------
deliver to the Company by wire transfer of immediately available funds to the
account designated by the Company on or prior to the Closing Date an amount
equal to its Purchase Commitment.

          (b)  AT&T PCS Purchases. AT&T PCS shall either deliver to the Company
               ------------------
by wire transfer of immediately available funds to the account designated by the
Company an amount equal to its Purchase Commitment or deliver to the Company for
cancellation Series D Notes in an amount equal to its Purchase Commitment.

          (c)  Delivery of Securities. The Company shall deliver to each
               ----------------------
Investor, certificates, duly executed by authorized signatories of the Company,
representing the shares of the Securities to be issued to each of them in
accordance with the terms of Sections 2.2(a) and 2.2(b).

          (d)  Other Deliveries. The parties shall execute and deliver or cause
               ----------------
to be executed and delivered all other documents, instruments, opinions and
certificates contemplated by this Agreement to be delivered at the Closing or
necessary and appropriate in order to consummate the Transactions contemplated
to be consummated on the Closing Date.

     3.3. Closing Costs; Taxes and Fees. The Company shall pay or cause to be
          -----------------------------
paid at the Closing or, if due prior to the Closing or thereafter, promptly when
due, all transfer taxes (including sales taxes, gross receipts taxes, stamp
taxes, and other taxes) payable solely as a result of a transfer of the
Contributions pursuant to this Agreement, but excluding any federal, state,
local or other jurisdictional income taxes (or franchise, excise, gross receipts
or other taxes that are generally imposed on a party on a periodic basis as a
result of a party's status, presence, conduct of business, holding of assets,
income, revenues, activities or other items).

                                  ARTICLE IV

                  REPRESENTATIONS AND WARRANTIES OF INVESTORS

          Each of the Investors (as to itself) represents and warrants to the
Company and each of the other parties as follows:

     4.1. Organization, Power and Authority.
          ---------------------------------
               (a)  Each Investor is a corporation, general partnership or
limited partnership, duly organized, validly existing and in good standing under
the Laws of its jurisdiction of organization and has the requisite power and
authority to own, lease and operate its properties and to carry on its business
as now being conducted.

               (b)  It has the requisite power and authority to execute, deliver
and perform this Agreement and each other instrument, document, certificate and
agreement required or contemplated

                                     -10-
<PAGE>

to be executed, delivered and performed by it hereunder and thereunder to which
it is or will be a party.

               (c)  It is duly qualified to do business in each jurisdiction
where the character of its properties owned or held under lease or the nature of
its activities makes such qualification necessary other than any such
jurisdiction in which the failure to be so qualified would not have a Material
Adverse Effect on it or materially adversely affect the Transactions.

               (d)  The execution and delivery of this Agreement by it and the
consummation of the Transactions by it have been duly and validly authorized by
its Board of Directors (or equivalent body) and no other proceedings on its part
which have not been taken (including, without limitation, approval of its
stockholders, partners or members) are necessary to authorize this Agreement or
to consummate the Transactions.

               (e)  This Agreement has been duly executed and delivered by it
and constitutes its valid and binding obligation, enforceable against it in
accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar Laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity.

               (f)  As of the Closing Date, after giving effect to the
Transactions, it is not in breach of any obligation under this Agreement.

     4.2. Consents; No Conflicts. Neither the execution, delivery and
          ----------------------
performance by it of this Agreement nor the consummation of the Transactions
will (a) conflict with, or result in a breach or violation of, any provision of
its organizational documents; (b) subject to obtaining the Consents set forth on
Schedule 4.2, constitute, with or without the giving of notice or passage of
time or both, a breach, violation or default, create a Lien, or give rise to any
right of termination, modification, cancellation, prepayment or acceleration,
under (i) any Law or License or (ii) any note, bond, mortgage, indenture, lease,
agreement or other instrument, in each case which is applicable to or binding
upon it or any of its assets; or (c) require any Consent, other than those set
forth on Schedule 4.2 or the approval of its board of directors, general
partner, stockholders or similar constituent bodies, as the case may be (which
approvals have been obtained), except in each case, where such breach,
violation, default, Lien, right, or the failure to obtain or give such Consent
would not have a Material Adverse Effect on it or materially adversely affect
the Transactions. To its knowledge, there is no fact relating to it or its
Affiliates that would be reasonably expected to prevent it from consummating the
Transactions.

     4.3. Litigation. There is no action, proceeding or investigation pending
          ----------
or, to its knowledge, threatened against it or any of its properties or assets
that would be reasonably expected to have an adverse effect on its ability to
consummate the Transactions to which it is a party or to fulfill its obligations
under this Agreement or which seeks to prevent or challenge the Transactions.

                                     -11-
<PAGE>

     4.4. FCC Compliance. It complies with all eligibility rules issued by the
          --------------
FCC to hold broadband PCS Licenses, including without limitation, FCC rules on
foreign ownership and the CMRS spectrum cap. Set forth opposite its name on
Schedule 4.4 are all "attributable" interests (within the meaning of Section
20.6 of the FCC's Rules) that it holds in CMRS licenses that overlap the
territory covered by the PCS Licenses to be bid on at the PCS "C" Block Auction.

     4.5. Brokers. It has not employed any broker, finder or investment banker
          -------
or incurred any liability for any brokerage fees, commissions or finder's fees
in connection with the Transactions.

     4.6. Capital Commitment. Each Investor has, and will have on the Closing
          ------------------
Date, cash available to it in an amount sufficient to make its respective
Purchase Commitment in accordance with the terms of Section 2.1.

     4.7. No Distribution. It is acquiring the Securities to be acquired by it
          ---------------
hereunder for the purpose of investment and not with a view to or for sale in
connection with any distribution thereof (other than in compliance with the
Stockholders' Agreement and the Securities Act and all applicable state
securities laws).

     4.8. Investor Acknowledgments.
          ------------------------

               (a)  It is an "accredited investor" as defined in Regulation D of
the Securities Act. Its representatives have been provided an opportunity to ask
questions of, and have received answers thereto from, the Company and its
representatives regarding the terms and conditions of its purchase of
Securities, and the Company and its proposed business generally, and have
obtained all additional information requested by it to verify the accuracy of
all information furnished to it in connection with such purchase.

               (b)  It has such knowledge and experience in financial and
business affairs that it is capable of evaluating the merits and risks of
purchasing the Securities it is purchasing hereunder.

               (c)  It is not relying on and acknowledges that no representation
is being made by any other Cash Equity Investor, the Company or any of its
officers, employees, Affiliates, agents or representatives, except for
representations and warranties expressly set forth in this Agreement, and, in
particular, it is not relying on, and acknowledges that no representation is
being made in respect of, (x) any projections, estimates or budgets delivered to
or made available to them of future revenues, expenses or expenditures, or
future results of operations and (y) any other information or documents
delivered or made available to it or its representatives, except for
representations and warranties expressly set forth in this Agreement and such
information and documents obtained by it as a stockholder of the Company and
through its representatives who serve as members of the Company's board of
directors, as the case may be.

               (d)  In deciding to invest in the Company, it has relied
exclusively on the representations and warranties expressly set forth in this
Agreement, and the investigations made by itself and its representatives and its
and such representatives' knowledge of the industry in which the Company
proposes to operate. Based solely on such representations and warranties and
such

                                     -12-
<PAGE>

investigations and knowledge and such information obtained by him or it by
virtue of his or its status as a stockholder of the Company, and through its
representatives who serve as members of the Company's board of directors, as the
case may be, it has determined that the Securities it is acquiring are a
suitable investment for it.

                                   ARTICLE V

                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY

               The Company represents and warrants severally as to the Company
and its Subsidiaries to the Investors as follows:

     5.1. Organization, Power and Authority.
          ---------------------------------

               (a)  The Company and each of its Subsidiaries that is a
corporation is a corporation duly organized, validly existing and in good
standing under the laws of the jurisdiction of its incorporation and has the
requisite corporate power and authority to own, lease and operate its properties
and to carry on its business as now being conducted and as proposed to be
conducted. Each of the Company's Subsidiaries that is a limited liability
company or a limited partnership is a limited liability company or a limited
partnership, as the case may be, duly formed, validly existing and in good
standing under the laws of the jurisdiction of formation and has the requisite
limited liability company or a limited partnership, as the case may be, power
and authority to own, lease and operate its properties and to carry on its
business as now being conducted and as proposed to be conducted.

               (b)  It has the requisite power, authority and/or legal capacity
to execute, deliver and perform this Agreement and each other instrument,
document, certificate and agreement required or contemplated to be executed,
delivered and performed by it hereunder and thereunder to which it is or will be
a party.

               (c)  The Company and each of its Subsidiaries is duly qualified
to do business in each jurisdiction where the character of its properties owned
or held under lease or the nature of its activities makes such qualification
necessary other than any such jurisdiction in which the failure to be so
qualified would not have a Material Adverse Effect on it or materially adversely
affect the Transactions.

               (d)  The execution and delivery of this Agreement and the
consummation of the Transactions by it have been duly and validly authorized by
its Board of Directors and shareholders and, except for the filing the Company's
Restated Certificate with the office of the Secretary of State of Delaware, no
other proceedings which have not been taken are necessary to authorize this
Agreement or to consummate the Transactions.

               (e)  This Agreement has been duly executed and delivered by it
and constitutes the valid and binding obligation of it, enforceable against it
in accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar Laws affecting

                                     -13-
<PAGE>

or relating to enforcement of creditors' rights generally and may be subject to
general principles of equity.

               (f)  As of the Closing, after giving effect to the Transactions,
it is not in breach of any obligation under this Agreement or any of the Credit
Documents.

     5.2. Consents; No Conflicts. Neither the execution, delivery and
          ----------------------
performance of this Agreement nor the consummation of the Transactions will (a)
conflict with, or result in a breach or violation of, any provision of its
organizational documents; (b) subject to obtaining the Consents set forth on
Schedule 5.2, constitute, with or without the giving of notice or passage of
time or both, a breach, violation or default, create a Lien, or give rise to any
right of termination, modification, cancellation, prepayment or acceleration,
under (i) any Law or License, or (ii) any note, bond, mortgage, indenture,
lease, agreement or other instrument, in each case which is applicable to or
binding upon it or any of its assets; or (c) require any Consent, other than
those set forth on Schedule 5.2 or the approval of its Board of Directors or its
stockholders (which approval has been obtained), except in each case where such
breach, violation, default, Lien, right, or the failure to obtain or give such
Consent would not have a Material Adverse Effect on it or materially adversely
affect the Transactions or the operation of its business after the Closing Date.
To its knowledge, there is no fact relating to it or its Affiliates that would
be reasonably expected to prevent it from consummating the Transactions or
performing its obligations under this Agreement or disqualify it from obtaining
the Consents required in order to consummate the transactions contemplated
hereunder.

     5.3. Litigation. There is no action, proceeding or investigation pending
          ----------
or, to its knowledge, threatened against it or any of its properties or assets
that would have an adverse effect on its ability to consummate the Transactions
to which it is a party or to fulfill its obligations under this Agreement, or to
operate its business after the Closing Date, or which seeks to prevent or
challenge the Transactions. There is no judgment, decree, injunction, rule or
order outstanding against it which would limit in any material respect its
ability to operate its business in the manner currently contemplated.

     5.4. FCC Compliance. The Company complies, and after giving effect to the
          --------------
Transactions will comply, with all eligibility rules issued by the FCC to hold
broadband PCS Licenses, including FCC rules on foreign ownership and the CMRS
spectrum cap.

     5.5. Brokers. It has not employed any broker, finder or investment banker
          -------
or incurred any liability for any brokerage fees, commissions or finder's fees
in connection with the Transactions.

     5.6. Capitalization.
          --------------

               (a)  As of the date hereof, the authorized capital stock of the
Company consists of 700,000 shares of Voting Common Stock, 700,000 shares of
Non-Voting Common Stock, ten shares of Voting Preference Stock, 1,000 shares of
Class C Common Stock, 3,000 shares of Class D Common Stock, 70,000 shares of
Series A Preferred Stock, 140,000 shares of Series B Preferred

                                     -14-
<PAGE>

Stock, 140,000 shares of Series C Preferred Stock, 35,000 shares of Series D
Preferred Stock, 20,000 shares of Series E Preferred Stock, 35,000 shares of
Series F Preferred Stock and 70,000 shares of Senior Common Stock. As of the
Closing Date, after giving effect to the filing of the Restated Certificate and
the Transactions there will be issued and outstanding the shares of Preferred
Stock and Common Stock set forth on Schedule III. The record and beneficial
owners of such outstanding shares of Common Stock and Preferred Stock, as of the
Closing Date, after giving effect to the Transactions, are set forth on Schedule
III.

               (b)  Except as set forth on Schedule 5.6, on the Closing Date,
after giving effect to the Transactions, there will not be any existing options,
warrants, calls, subscriptions, or other rights, or other agreements or
commitments, obligating the Company to issue, transfer or sell any shares of
capital stock of the Company.

     5.7. Shares. The shares of Securities being issued to the Investors
          ------
hereunder, when issued and paid for pursuant to the terms of this Agreement and
after giving effect to the filing of the Restated Certificate, will be duly
authorized, validly issued, fully paid and non-assessable, and will be free of
any Liens caused or created by the Company, except as set forth in the
Stockholders' Agreement and the Restated Certificate. The shares of Common Stock
or Preferred Stock, as the case may be, issued upon conversion of the Securities
issued on the Closing Date, or upon conversion thereof after the Closing Date,
when issued pursuant to the terms thereof, will be validly issued, fully paid
and non-assessable, and will be free of any Liens caused or created by the
Company, except as set forth in the Stockholders' Agreement and the Restated
Certificate.

                                     -15-
<PAGE>

     5.8.  Offering of Securities.
           ----------------------

               (a)  None of the Company or any Person acting on its behalf has
offered the Securities or any similar equity securities of the Company for sale
to, or solicited any offers to buy Securities or any similar equity securities
of the Company from, any Person, other than the Investors and a limited number
of other "accredited investors" (as defined in Rule 501(a) under the Securities
Act).

               (b)  None of the Company or any Person acting on its behalf will,
directly or indirectly, take any action which might subject the offering,
issuance or sale of the Securities to the registration and prospectus delivery
requirements of Section 5 of the Securities Act.

               (c)  Assuming the accuracy of the representations and warranties
of the Investors contained in Section 4.8, each of the offering and sale of
Securities under this Agreement to the Investors complies with all applicable
requirements of Federal and state securities laws.

     5.9.  Subsidiaries. Except as set forth in Schedule 5.9 hereto, the Company
           ------------
owns directly or indirectly all of the outstanding shares of Capital Stock of
each of its Subsidiaries, free and clear of any Liens, except Liens granted to
the lenders pursuant to the Credit Documents. Set forth on Schedule 5.9 is a
complete list of its direct and indirect Subsidiaries indicating the
jurisdictions in which each such Subsidiary is organized or qualified to conduct
business.

     5.10. Small Business Matters. Neither the Company nor any Subsidiary: (i)
           ----------------------
presently engages in, and none of them shall hereafter engage in, any
activities, or (ii) shall use directly or indirectly the proceeds from the sale
of the Securities for any purpose, which, in either case, a SBIC is prohibited
from engaging in or providing funds for by the SBIC Act and the regulations
thereunder (including Title 13, Code of Federal Regulations, Section 107.720).

                                  ARTICLE VI

                                   COVENANTS

     6.1.  Consummation of Transactions. Each party shall use all commercially
           ----------------------------
reasonable efforts to take, or cause to be taken, all actions, and to do, or
cause to be done, all things necessary, proper or advisable and consistent with
applicable law to carry out all of their respective obligations under this
Agreement and to consummate the Transactions, which efforts shall include,
without limitation, the following:

               (a)  The parties shall use all commercially reasonable efforts to
cause the Closing to occur and the Transactions to be consummated in accordance
with the terms hereof, and, without limiting the generality of the foregoing, to
make all filings with and to give all notices to third parties which may be
necessary or reasonably required in order for the parties to consummate the
Transactions.

                                     -16-
<PAGE>

               (b)  Each party shall furnish to the other parties all
information concerning such party and its Affiliates reasonably required for
inclusion in any application or filing to be made by the Company or any other
party in connection with the Transactions or otherwise to determine compliance
with applicable FCC Law.

               (c)  Upon the request of any other party, each party shall
forthwith execute and deliver, or cause to be executed and delivered, such
further instruments of assignment, transfer, conveyance, endorsement, direction
or authorization and other documents as may reasonably be requested by such
party in order to effectuate the purposes of this Agreement.

     6.2. Use of Proceeds. The Company shall use the proceeds of the sale to
          ---------------
Investors only for the purposes described in Section 2.5.

     6.3. SBIC Regulatory Provisions.
          --------------------------

               (a)  The Company shall notify each SBIC Holder as soon as
practicable (and, in any event, not later than 15 days) prior to taking any
action after which the number of record holders of the Company's voting stock
would be increased from fewer than 50 to 50 or more, and the Company shall
notify each SBIC Holder of any other action or occurrence after which the number
of record holders of the Company's voting stock was increased (or would
increase) from fewer than 50 to 50 or more, as soon as practicable after the
Company becomes aware that such other action or occurrence has occurred or is
proposed to occur.

               (b)  Within 75 days after the Closing, the Company shall deliver
to each SBIC Holder a written statement certified by the Company's president or
chief financial officer describing in reasonable detail the use of the proceeds
of the sale of Securities hereunder by the Company and its Subsidiaries. In
addition to any other rights granted hereunder, the Company shall grant each
SBIC Holder and the United States Small Business Administration (the "SBA")
                                                                      ----
access to the Company's records for the purpose of verifying the use of such
proceeds to the extent required pursuant to SBIC Regulations.

               (c)  Promptly after the end of each fiscal year (but in any event
prior to February 28 of each year), the Company shall deliver to each SBIC
Holder a written assessment of the economic impact of each SBIC Holder's
investment in the Company, specifying the full-time equivalent jobs created or
retained in connection with the investment, the impact of the investment on the
revenues and profits of the business and on taxes paid by the business and its
employees.

     6.4. Regulatory Compliance Cooperation. In the event that any SBIC Holder
          ---------------------------------
reasonably determines that it has a Regulatory Problem, to the extent reasonably
necessary, such SBIC Holder shall have the right to transfer its Securities (and
any shares of Common Stock issued upon conversion thereof) to another Person
without regard to any restrictions on transfer set forth in this Agreement or in
Section 4.1(c) of the Stockholders' Agreement and without complying with the
provisions of Section 4.3 of the Stockholders' Agreement, but subject to the
other provisions of the Stockholders' Agreement and federal and state securities
law restrictions, and the Company shall

                                     -17-
<PAGE>

take all such actions as are reasonably requested by such SBIC Holder in order
to (i) effectuate and facilitate such transfer by such SBIC Holder of any
Securities of the Company then held by such SBIC Holder to such Person, (ii)
permit such SBIC Holder (or any of its Affiliates) to exchange all or any
portion of voting Securities then held by it on a share-for-share basis for
shares of a class of non-voting Securities of the Company, which non-voting
Securities shall be identical in all respects to such voting Securities, except
that such non-voting Securities (or Common Stock, as applicable) shall be non-
voting and shall be convertible into voting Securities (or Common Stock, as
applicable) on such terms as are requested by such SBIC Holder in light of
regulatory considerations then prevailing, (iii) continue and preserve the
respective allocation of the voting interests with respect to the Company
arising out of the SBIC Holder's ownership of voting Securities and/or provided
for in the Stockholders' Agreement before the transfers and amendments referred
to in this Section (including entering into such additional agreements as are
reasonably requested by such SBIC Holder to permit any Person(s) designated by
such SBIC Holder) to exercise any voting power which is relinquished by such
SBIC Holder and (iv) amend this Agreement, the Restated Certificate, and any
other related documents, agreements or instruments to effectuate and reflect the
foregoing. The parties to this Agreement agree to vote their Securities in favor
of such amendments and actions.

     6.5. Offering of Securities. None of the Company or any Person acting on
          ----------------------
its behalf will, directly or indirectly, take any action which might subject the
offering, license or sale of the Securities to the registration and prospectus
delivery requirements of Section 5 of the Securities Act.

     6.6. Waiver of Preemptive Rights. With respect to the Transactions and the
          ---------------------------
issuance of the shares of Securities hereunder, each of the Investors hereby
waives (a) the notice requirements set forth in Section 7.2(b) of the
Stockholders' Agreement and (b) its preemptive rights that are afforded such
party in Section 7.2 of the Stockholders' Agreement.

     6.7. Bidding Requirements. The Company shall comply and shall ensure that
          --------------------
the Bidding Subsidiary complies with (a) all FCC Laws regarding bidding for PCS
Licenses and (b) any and all written agreements among the parties regarding the
bidding by the Bidding Subsidiary for the PCS Licenses.

                                  ARTICLE VII

                              CLOSING CONDITIONS

     7.1. Conditions to Obligations of All Parties. The obligation of each of
          ----------------------------------------
the parties to consummate the Transactions contemplated to occur at the Closing
shall be conditioned on the Company being awarded one or more PCS Licenses at
the PCS "C" Block Auction; provided, that, the Closing shall occur on August 12,
1999 even if the Company has not been awarded any PCS Licenses, unless the
Expended Amount shall be zero.

     7.2. Conditions to Obligations of the Company. The obligation of the
          ----------------------------------------
Company to

                                     -18-
<PAGE>

consummate the Transactions contemplated to occur at the Closing shall be
further conditioned upon the Company receiving any consent of the lenders that
may be required pursuant to the terms of the Credit Agreement.

                                 ARTICLE VIII

                         SURVIVAL AND INDEMNIFICATION

     8.1. Survival. Except for the representations and warranties contained in
          --------
Sections 4.1(a), (b), (d) and (e), and 5.1(a), (b), (d) and (e) (which shall
survive the Closing, without regard to any investigation made by any of the
parties hereto, until the expiration of the applicable statute of limitations
relating thereto), the representations and warranties made in this Agreement
shall survive the Closing without regard to any investigation made by any of the
parties hereto until the second anniversary thereof and shall thereupon expire
together with any right to indemnification in respect thereof (except to the
extent a written notice asserting a claim for breach of any such representation
or warranty and describing such claim in reasonable detail shall have been given
prior to the expiration of the applicable survival period to the party which
made such representation or warranty). The covenants and agreements contained
herein to be performed or complied with prior to the Closing shall expire at the
Closing. The covenants and agreements contained in this Agreement to be
performed or complied with after the Closing shall survive the Closing; provided
that the right to indemnification pursuant to this Article VIII in respect of a
breach of a representation or warranty shall expire upon the application of the
applicable survival period of the Closing (except to the extent written notice
asserting a claim thereunder and describing such claim in reasonable detail
shall have been given prior to such expiration to the party from whom such
indemnification is sought). After the Closing, the sole and exclusive remedy of
the parties for any breach or inaccuracy of any representation or warranty
contained in this Agreement, or any other claim (whether or not alleging a
breach of this Agreement) that arises out of the facts and circumstances
constituting such breach or inaccuracy, shall be the indemnity provided in this
Article VIII.

     8.2. Indemnification by the Investors. Each Investor shall indemnify and
          --------------------------------
hold harmless each other Investor and the Company and their respective
Affiliates, and the shareholders, members, managers, officers, employees, agents
and/or the legal representatives of any of them (each, a "Section 8.2
                                                          -----------
Indemnified Party"), against all liabilities and expenses (including amounts
- -----------------
paid in satisfaction of judgments, in compromise, as fines and penalties, and as
counsel fees) (collectively, "Losses") incurred by him or it in connection with
                              ------
the investigation, defense, or disposition of any action, suit or other
proceeding in which any Section 8.2 Indemnified Party may be involved or with
which he or it may be threatened (whether arising out of or relating to matters
asserted by third parties against a Section 8.2 Indemnified Party or incurred or
sustained by such party in the absence of a third-party claim), that arises out
of or results from (a) any representation or warranty of such indemnifying party
contained in this Agreement being untrue in any material respect as of the date
on which it was made or (b) any material default by such indemnifying party or
any of its Affiliates in the performance of their respective obligations under
this Agreement, except to the extent (but

                                     -19-
<PAGE>

only to the extent) any such Losses arise out of or result from the gross
negligence or willful misconduct of such Section 8.2 Indemnified Party or its
Affiliates.

     8.3. Indemnification by the Company.  The Company shall indemnify and hold
          ------------------------------
harmless each of the Investors and their respective Affiliates, and the
shareholders, members, managers, officers, employees, agents and/or the legal
representatives of any of them (each, a "Section 8.3 Indemnified Party"),
                                         -----------------------------
against all Losses incurred by him or it in connection with the investigation,
defense, or disposition of any action, suit or other proceeding in which any
Section 8.3 Indemnified Party may be involved or with which he or it may be
threatened (whether arising out of or relating to matters asserted by third
parties against a Section 8.3 Indemnified Party or incurred or sustained by such
party in the absence of a third-party claim), that arises out of or results from
(a) any representation or warranty of the Company contained in this Agreement
being untrue in any material respect as of the date on which it was made or (b)
any material default by the Company or any of its Affiliates in the performance
of their respective obligations under this Agreement, except to the extent (but
only to the extent) any such Losses arise out of or result from the gross
negligence or willful misconduct of such Section 8.3 Indemnified Party or its
Affiliates.

     8.4. Procedures.
          ----------

            (a)   The terms of this Section 8.4 shall apply to any claim (a
"Claim") for indemnification under the terms of Sections 8.2 or 8.3. The Section
8.2 Indemnified Party or Section 8.3 Indemnified Party (each, an "Indemnified
Party"), as the case may be, shall give prompt written notice of such Claim to
the indemnifying party (the "Indemnifying Party") under the applicable Section,
which party may assume the defense thereof, provided that any delay or failure
to so notify the Indemnifying Party shall relieve the Indemnifying Party of its
obligations hereunder only to the extent, if at all, that it is materially
prejudiced by reason of such delay or failure. The Indemnified Party shall have
the right to approve any counsel selected by the Indemnifying Party and to
approve the terms of any proposed settlement, such approval not to be
unreasonably delayed or withheld (unless, in the case of approval of a proposed
settlement, such settlement provides only, as to the Indemnified Party, the
payment of money damages actually paid by the Indemnifying Party and a complete
release of the Indemnified Party in respect of the claim in question).
Notwithstanding any of the foregoing to the contrary, the provisions of this
Article VIII shall not be construed so as to provide for the indemnification of
any Indemnified Party for any liability to the extent (but only to the extent)
that such indemnification would be in violation of applicable law or that such
liability may not be waived, modified or limited under applicable law, but shall
be construed so as to effectuate the provisions of this Article VIII to the
fullest extent permitted by law.

            (b)   In the event that the Indemnifying Party undertakes the
defense of any Claim, the Indemnifying Party will keep the Indemnified Party
advised as to all material developments in connection with such Claim,
including, but not limited to, promptly furnishing the Indemnified Party with
copies of all material documents filed or served in connection therewith.

            (c)   In the event that the Indemnifying Party fails to assume the
defense of any Claim within ten business days after receiving written notice
thereof, the Indemnified Party shall have the

                                     -20-
<PAGE>

right, subject to the Indemnifying Party's right to assume the defense pursuant
to the provisions of this Article VIII, to undertake the defense, compromise or
settlement of such Claim for the account of the Indemnifying Party. Unless and
until the Indemnified Party assumes the defense of any Claim, the Indemnifying
Party shall advance to the Indemnified Party any of its reasonable attorneys'
fees and other costs and expenses incurred in connection with the defense of any
such action or proceeding. Each Indemnified Party shall agree in writing prior
to any such advancement that, in the event he or it receives any such advance,
such Indemnified Party shall reimburse the Indemnifying Party for such fees,
costs and expenses to the extent that it shall be determined that he or it was
not entitled to indemnification under this Article VIII.

          (d)   In no event shall an Indemnifying Party be required to pay in
connection with any Claim for more than one firm of counsel (and local counsel)
for each of the following groups of Indemnified Parties: (i) the Investors,
their respective Affiliates, and the shareholders, members, managers, officers,
employees, agents and/or the legal representatives of any of them; and (ii) the
Company and its respective Affiliates, and the shareholders, members, managers,
officers, employees, agents and/or the legal representatives of any of them.

     8.5. Registration Rights.  Notwithstanding anything to the contrary in this
          -------------------
Article VIII, the indemnification and contribution provisions set forth in
Sections 5(e) and 5(f) of the Stockholders' Agreement shall govern any claim
made with respect to the registration statements filed pursuant to Section 5 of
the Stockholders' Agreement or sales made thereunder.

     8.6. Limit on Indemnity.  So long as the Company does not conduct any
          ------------------
business or engage in any activities other than those described in the first
sentence of the definition of "Business" (as such term is defined in the
Stockholders' Agreement), each party waives its right to indemnification under
this Article VIII or any other right to assert any claim arising from any
inaccuracy in the Company's representations and warranties set forth in Section
5.10.

                                  ARTICLE IX

                                  TERMINATION

     9.1. Termination.  In addition to any other rights of termination set forth
          -----------
herein, this Agreement may be terminated, and the Transactions abandoned,
without further obligation of any party (except as set forth herein), at any
time prior to the Closing Date:

            (a)   by mutual written consent of the parties;

            (b)   by any party by written notice to the other parties, if the
consummation of the Transactions shall be prohibited by a final, non-appealable
order, decree or injunction of a court of competent jurisdiction.

            Notwithstanding the foregoing, subject to the conditions set forth
in Article VII, this Agreement may not be terminated by any party under any
circumstance until after the completion of the PCS `C' Block Auction or until
after the Bidding Subsidiary ceases to bid in

                                     -21-
<PAGE>

the PCS `C' Block Auction, in which event this Agreement may be terminated only
as to the amount by which the total Purchase Commitments exceed the Expended
Amount.

     9.2.  Effect of Termination.  (a) In the event of a termination of this
           ---------------------
Agreement, no party hereto shall have any liability or further obligation to any
other party to this Agreement, except as set forth in paragraph (b) below, and
except that nothing herein will relieve any party from liability for any breach
by such party of this Agreement.

               (a)   In the event of a termination of this Agreement pursuant to
Section 9.1, all provisions of this Agreement shall terminate, except Articles
VIII and X.

               (b)   Whether or not the Closing occurs, except as otherwise
expressly provided in this Agreement, all costs and expenses incurred in
connection with this Agreement and the Transactions shall be paid by the party
incurring such expenses.

                                   ARTICLE X

                           MISCELLANEOUS PROVISIONS

     10.1. Amendment and Modification. This Agreement may be amended, modified
           --------------------------
or supplemented only by written agreement of each of the parties.

     10.2. Waiver of Compliance; Consents.  Any failure of any of the parties to
           ------------------------------
comply with any obligation, covenant, agreement or condition herein may be
waived by the party or parties entitled to the benefits thereof only by a
written instrument signed by the party granting such waiver, but such waiver or
failure to insist upon strict compliance with such obligation, covenant,
agreement or condition shall not operate as a waiver of, or estoppel with
respect to, any subsequent or other failure.  Whenever this Agreement requires
or permits consent by or on behalf of any party hereto, such consent shall be
given in writing in a manner consistent with the requirement for a waiver of
compliance as set forth in this Section 10.2.

     10.3. Notices.  All notices or other communications hereunder shall be in
           -------
writing and shall be given (and shall be deemed to have been duly given upon
receipt) by delivery in person against receipt, by facsimile transmission with
confirmation of receipt, or by registered or certified mail (return receipt
requested), postage prepaid, with an acknowledgment of receipt signed by the
addressee or an authorized representative thereof, addressed as follows (or to
such other address for a party as shall be specified by like notice; provided
that notice of a change of address shall be effective only upon receipt
thereof):

     If to an Investor, to its address set forth on Schedule I.

     If to the Company, to it:

     1010 N. Glebe Road, Suite 800
     Arlington, Virginia  22201

                                     -22-
<PAGE>

     Attn:  General Counsel
     Facsimile: (703) 236-1102

     10.4. Expenses.  The Company agrees, in the event the Transactions are
           --------
consummated, to pay, and save the Cash Equity Investors harmless against, the
reasonable fees and disbursements of one corporate counsel and one FCC counsel
of the Investors in the aggregate in connection with the preparation,
negotiation, execution and delivery of this Agreement, the instruments and
documents executed pursuant hereto or thereto or in connection herewith or
therewith, and the consummation of the Transactions.

     10.5. Parties in Interest; Assignment. This Agreement is binding upon and
           -------------------------------
is solely for the benefit of the parties hereto and their respective permitted
successors, legal representatives and permitted assigns. Neither the Company nor
any Investor may assign its rights and obligations hereunder without the prior
written consent of each of the other parties; provided, that: (a) the Company
shall have the right to assign its rights under this Agreement to the lenders
(the "Lenders") named in the Credit Agreement, as security pursuant to the terms
      -------
of the Credit Documents, it being understood that as a result of any such
assignment to the Lenders, after an event of default under the Credit Agreement
and the expiration of any applicable grace and cure periods thereunder, the
Lenders shall have the right, on behalf of the Company, to enforce the
obligation of each Investor to make capital contributions to the Company in the
amounts and on the dates specified on Schedule I (or such earlier dates as may
be established in accordance with the terms of the Stockholders' Agreement) and
that, in connection with any such assignment to the Lenders, the Lenders shall
not assume any obligations of the Company hereunder.

     10.6. Applicable Law.  This Agreement shall be governed by and construed in
           --------------
accordance with the laws of the State of New York without giving effect to the
conflicts of law principles thereof.  The parties hereto hereby irrevocably and
unconditionally consent to submit to the non-exclusive jurisdiction of the
courts of the State of New York and of the United States of America located in
the County of New York, New York (the "New York Courts") for any litigation
                                       ---------------
arising out of or relating to this Agreement and the Transactions, waive any
objection to the laying of venue of any such litigation in the New York Courts
and agrees not to plead or claim in any New York Court that such litigation
brought therein has been brought in an inconvenient forum.

     10.7. Counterparts.  This Agreement may be executed in two or more
           ------------
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

     10.8. Interpretation.  The article and section headings contained in this
           --------------
Agreement are for convenience of reference only, are not part of the agreement
of the parties and shall not affect in any way the meaning or interpretation of
this Agreement.

     10.9. Entire Agreement.  This Agreement, including the exhibits and
schedules hereto and thereto and the certificates and instruments delivered
pursuant to the terms of this Agreement, embody the entire agreement and
understanding of the parties hereto in respect of the Transactions.

                                     -23-
<PAGE>

There are no restrictions, promises, representations, warranties, covenants or
undertakings, other than those expressly set forth or referred to herein. This
Agreement supersedes all prior agreements and understandings between the parties
with respect to such Transactions.

     10.10. Publicity.  So long as this Agreement is in effect, the parties
            ---------
agree to consult with each other in issuing any press release or otherwise
making any public statement with respect to the Transactions, and no party shall
issue any press release or make any such public statement prior to such
consultation, except as may be required by Law. No press release or other public
statement by the parties hereto shall disclose any of the financial terms of the
Transactions without the prior consent of the other parties, except as may be
required by Law. A breach of the provisions of this Section 10.10 by a party
shall not give rise to any right to terminate this Agreement.

     10.11. Specific Performance.  The parties hereto agree that irreparable
            --------------------
damage would occur in the event that any of the provisions of this Agreement
were not performed in accordance with their specific terms or were otherwise
breached.  It is accordingly agreed that the parties shall be entitled to an
injunction or injunctions to prevent breaches of this Agreement and to enforce
specifically the terms and provisions hereof in any New York Courts.

     10.12. Remedies Cumulative.  All rights, powers and remedies provided under
            -------------------
this Agreement or otherwise available in respect hereof at law or in equity
shall be cumulative and not alternative, and the exercise or beginning of the
exercise of any thereof by any party shall not preclude the simultaneous or
later exercise of any other such right, power or remedy by such party.

     10.13. Severability.  Any provision of this Agreement that is prohibited or
            ------------
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the
remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction.  If any court determines that any covenant or any part of
any covenant is invalid or unenforceable, such covenant shall be enforced to the
extent permitted by such court, and all other covenants shall not thereby be
affected and shall be given full effect, without regard to the invalid portions.

     10.14. Beneficiaries of Agreement.  The representations, warranties,
            --------------------------
covenants and agreements expressed in this Agreement are for the sole benefit of
the other parties hereto and the Section 8.2 Indemnified Parties and Section 8.3
Indemnified Parties and are not intended to benefit, and may not be relied upon
or enforced by, any other party as a third party beneficiary or otherwise,
except that the Management Shareholders are intended to benefit by, and may rely
upon or enforce, the provisions of Section 2.3 of this Agreement.



           [THE REMAINDER OF THIS PAGE IS INTENTIONALLY LEFT BLANK]

                                     -24-
<PAGE>

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first above written.


                                 TELECORP PCS, INC.

                                 By: /s/ Thomas H. Sullivan
                                     ------------------------------
                                 Name:  Thomas H. Sullivan
                                 Title: President

                                 AT&T WIRELESS PCS, INC.



                                 By: /s/ William W. Hague
                                     ------------------------------
                                 Name:  William W. Hague
                                 Title: Vice President


                                 Cash Equity Investors:

                                 CB CAPITAL INVESTORS, L.P.

                                 By:  CB Capital Investors, Inc.,
                                      its general partner


                                 By: /s/ Michael R. Hannon
                                     -------------------------------
                                 Name:  Michael R. Hannon
                                 Title: General Partner


                                 NORTHWOOD VENTURES LLC


                                 By: /s/ Henry T. Wilson
                                     -------------------------------
                                 Name:  Henry T. Wilson
                                 Title: Managing Director



                                 NORTHWOOD CAPITAL PARTNERS LLC

                                     -25-
<PAGE>

                                 By: /s/ Henry T. Wilson
                                     ------------------------------------
                                 Name:  Henry T. Wilson
                                 Title: Managing Director



                                 MEDIA\COMMUNICATIONS INVESTORS
                                 LIMITED PARTNERSHIP

                                 By:   M/C Investor General Partner - J, Inc.,
                                       its general partner

                                 By:  /s/ James F. Wade
                                      -----------------------------------
                                 Name:  James F. Wade
                                 Title:


                                 MEDIA\COMMUNICATIONS PARTNERS III
                                 LIMITED PARTNERSHIP

                                 By:   M/C III L.L.C.,
                                       its general partner


                                 By:  /s/ James F. Wade
                                      -----------------------------------
                                 Name:  James F. Wade
                                 Title: Manager

                                 EQUITY-LINKED INVESTORS-II

                                 By:  ROHIT M. DESAI ASSOCIATES-II,
                                      its general partner

                                 By: /s/ Frank J. Pados, Jr.
                                     ------------------------------------
                                 Name:  Frank J. Pados, Jr.
                                 Title: Attorney-in-Fact


                                 PRIVATE EQUITY INVESTORS III, L.P.

                                 By:  ROHIT M. DESAI ASSOCIATES III, LLC,

                                     -26-
<PAGE>

                                    its general partner

                                 By: /s/ Frank J. Pados, Jr.
                                     -----------------------------------
                                 Name:  Frank J. Pados, Jr.
                                 Title: Attorney-in-Fact


                                 HOAK COMMUNICATIONS PARTNERS, L.P.

                                 By:  HCP Investments, L.P.,
                                      its general partner

                                 By:  Hoak Partners, LLC,
                                      its general partner

                                 By: /s/ James M. Hoak
                                     -----------------------------------
                                 Name:  James M. Hoak
                                 Title: Manager

                                 HCP CAPITAL FUND, L.P.

                                 By:  James M. Hoak & Co.,
                                      its general partner

                                 By: /s/ James M. Hoak
                                     -----------------------------------
                                 Name:  James M. Hoak
                                 Title: Chairman


                                 WHITNEY EQUITY PARTNERS, L.P.

                                 By:  J.H. Whitney & Co.,
                                      its general partner

                                     -27-
<PAGE>

                                 By:  /s/ William Laverack, Jr.
                                     --------------------------------------
                                 Name:
                                 Title: General Partner


                                 J.H. WHITNEY III, L.P.

                                 By:  J.H. Whitney & Co.,
                                      its general partner

                                 By:  /s/ William Laverack, Jr.
                                     --------------------------------------
                                 Name:
                                 Title: General Partner

                                 WHITNEY STRATEGIC PARTNERS III, L.P.

                                 By:  J.H. Whitney & Co.,
                                      its general partner

                                 By:  /s/ William Laverack, Jr.
                                     --------------------------------------
                                 Name:
                                 Title: General Partner

                                 TORONTO DOMINION INVESTMENTS INC.

                                 By:  /s/ Martha L. Gariepy
                                     --------------------------------------
                                 Name:  Martha L. Gariepy
                                 Title: Vice President



                                 ONE LIBERTY FUND IV, L.P.


                                 By:  /s/ Joseph T. McCullen, Jr.
                                     --------------------------------------
                                 Name:  Joseph T. McCullen, Jr.
                                 Title: General Partner

                                     -28-
<PAGE>

                                                                      SCHEDULE I
                             Aggregate Commitment
                             --------------------

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------
                Name and Notice Address             Aggregate Commitment
- --------------------------------------------------------------------------
<S>                                                 <C>
AT&T Wireless PCS, Inc.                                       $4,640,000
P.O. Box 97061
Redmond, WA  98073-9761
Attn:  Michael Schwartz
- --------------------------------------------------------------------------
CB Capital Investors, L.P.                                    $3,758,000
380 Madison Avenue, 12th Floor
New York, NY  10017
Attn:  Michael Hannon
Fax:  (212) 622-3101
- --------------------------------------------------------------------------
Desai Associates                                              $3,758,000
   Equity-Linked Investors-II                                 $1,879,000
   Private Equity Investors III, L.P.                         $1,879,000

540 Madison Avenue, 36th Floor
New York, NY  10022
Attn:  Rohit M. Desai
Fax:  (212) 752-7807
- --------------------------------------------------------------------------
Hoak Capital Corporation                                      $2,818,000
   Hoak Communications Partners, L.P.                         $2,581,850
   HCP Capital Fund, L.P.                                     $  236,150

One Galleria Tower
13355 Noel Road, Suite 1050
Dallas, Texas  75240
Attn:  James Hoak
Fax:  (972) 960-4899
- --------------------------------------------------------------------------
J.H. Whitney & Co.                                            $2,348,000
   Whitney Equity Partners, L.P.                              $  704,400
   J.H. Whitney III, L.P.                                     $1,604,927
   Whitney Strategic Partners III, L.P.                       $   38,673

177 Broad Street, 15th Floor
Stamford, Connecticut  06901
Attn:  William Laverack, Jr.
Fax:  (203) 973-1422
- --------------------------------------------------------------------------
</TABLE>
<PAGE>

                       Aggregate Commitment (Continued)
                       --------------------------------

<TABLE>
- --------------------------------------------------------------------------
<S>                                                            <C>
M/C Partners                                                   $ 1,410,000
    Media/Communications Investors Limited
    Partnership
    Media/Communications Partners III Limited                  $    56,400
    Partnership
                                                               $ 1,353,600
75 State Street, Suite 2500
Boston, MA  02109
Attn:  James F. Wade
Fax:  (617) 345-7201
- --------------------------------------------------------------------------
OneLiberty Fund IV, L.P.                                       $   470,000
One Liberty Square
Boston, MA  02109
Attn:  Joseph T. McCullen
Fax:   (617) 423-1765
- --------------------------------------------------------------------------
Toronto Dominion Investments Inc.                              $   470,000
31 West 52/nd/ Street
New York, NY 10019-6101
Attn: Steve Reinstadtler
Fax:  (212) 974-8429

(with a copy to)

Toronto Dominion Investments, Inc.
909 Fannin
Suite 1700
Houston, TX 77010
Attn:  Martha Gariepy
Fax:  (713) 652-2647
- --------------------------------------------------------------------------
Northwood Capital Partners                                     $   328,000
    Northwood Ventures LLC                                     $   278,800
    Northwood Capital Partners LLC                             $    49,200

485 Underhill Boulevard, Suite 205
Syosset, New York  11791-3419
Attn:  Peter Schiff
Fax:  (516) 364-0879
- --------------------------------------------------------------------------
    TOTAL:                                                     $20,000,000
- --------------------------------------------------------------------------
</TABLE>
<PAGE>

                                                                     SCHEDULE II


                                Stock Exchange
                                --------------


Voting Common Stock:

Gerald T. Vento =             total Voting Common Stock and Series F Preferred
                              Stock issued hereunder to Cash Equity Investors
                              and AT&T PCS divided by .86 and multiplied by
                              .0555 up to an aggregate amount equal to 645.35
                              shares.

Thomas H. Sullivan =          total Voting Common Stock and Series F Preferred
                              Stock issued hereunder to Cash Equity Investors
                              and AT&T PCS divided by .86 and multiplied by
                              .0345 up to an aggregate amount equal to 401.16
                              shares.

1998 Restricted Stock Plan =  total Voting Common Stock and Series F Preferred
                              Stock issued hereunder to Cash Equity Investors
                              and AT&T PCS divided by .86, multiplied by .14 and
                              minus Voting Common Stock issued hereunder to
                              Vento and Sullivan.

Series E Preferred Stock:

Gerald T. Vento =             total Series C Preferred Stock and Series D
                              Preferred Stock issued hereunder to Cash Equity
                              Investors and AT&T PCS divided by .90 and
                              multiplied by .0444 up to an aggregate of 493.33
                              shares.

Thomas H. Sullivan =          total Series C Preferred Stock and Series D
                              Preferred Stock issued hereunder to Cash Equity
                              Investors and AT&T PCS divided by .90 and
                              multiplied by .0276 up to an aggregate of 306.67
                              shares.

1998 Restricted Stock Plan =  total Series C Preferred Stock and Series D
                              Preferred Stock issued hereunder to Cash Equity
                              Investors and AT&T PCS divided by .90, multiplied
                              by .10 minus the Series E Preferred Stock issued
                              hereunder to Vento and Sullivan.
<PAGE>

                                                                    SCHEDULE 4.2

                         Cash Equity Investor Consents
                         -----------------------------

     The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:

None.
<PAGE>

                                                                    SCHEDULE 4.4

                            Attributable Interests
                            ----------------------


None.
<PAGE>

                                                                    SCHEDULE 5.2

                               Company Consents
                               ----------------

     The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:


None.
<PAGE>

                                                                    SCHEDULE 5.6

                      Outstanding Options, Warrants, etc.
                      -----------------------------------

1.   Upon the closing of the transaction contemplated by the License Acquisition
     Agreement by and between Wireless 2000, Inc. ("Wireless") and the Company,
     dated as of December 2, 1998 (the "Wireless Acquisition Agreement"), the
     Company shall issue to Wireless: (i) five hundred forty-five and 20/100
     (545.20) shares of Series C Preferred Stock, par value $.01 per share, and
     (ii) five hundred thirty and 40/100 (530.40) shares of Class A Voting
     Common Stock, par value $.01 per share, of the Company.

2.   Upon the closing of the transaction contemplated by the License Acquisition
     Agreement by and between Mercury PCS II, LLC ("Mercury") and the Company,
     dated as of May 15, 1998 (the "Mercury Acquisition Agreement"), the Company
     shall issue to Mercury: (i) two thousand three hundred thirty-two and
     55/100 (2,332.50) shares of Series C Preferred Stock, par value $.01 per
     share, and (ii) two thousand two hundred sixty-nine and 23/100 (2,269.23)
     shares of Class A Voting Common Stock, par value $.01 per share, of the
     Company and shall issue additional shares of Series C Preferred Stock and
     Class A Voting Common Stock to the Cash Equity Investors as set forth on
     Schedule V of the Securities Purchase Agreement, setting forth Share
     Allocation With Supplemental Allocation.

3.   The Company is in negotiations with respect to a transaction which would
     involve the issuance of instruments convertible into Capital Stock of the
     Company to certain existing shareholders of the Company in connection with
     the purchase by the Company of non-management equity interests in each of
     THC of Houston, Inc., THC of Melbourne, Inc., THC of Tampa, Inc. and THC of
     Orlando, Inc.

4.   The Company is in negotiations to enter into: (A) an Asset Purchase
     Agreement with AT&T PCS to purchase from AT&T PCS a certain disaggregated
     20 MHz of the 30MHz A Block license for the San Juan, Puerto Rico MTA in
     exchange for: (v) $19,000,000 in cash, (w) Series A Convertible Preferred
     Stock, Series D Preferred Stock and Series F Preferred Stock of the Company
     in an aggregate amount of $40,000,000, (x) Series D Senior Subordinated
     Notes (or Series D Senior Subordinated Notes combined with Series E Senior
     Subordinated Notes), issued under a certain Indenture by and between the
     Company and a designated Trustee, in an aggregate amount of $36,000,000,
     (y) assumption of certain liabilities, and (z) reimbursement to AT&T PCS of
     $3,200,000 of Microwave clearing costs, and (B) a Stock Purchase Agreement
     between the Company and certain Cash Equity Investors identified therein
     pursuant to which the Company will sell to such Cash Equity Investors an
     aggregate of $39,996,000 of its Series C Preferred Stock and Class A Common
     Stock.
<PAGE>

                                                                    SCHEDULE 5.9

                                 Subsidiaries
                                 ------------

<TABLE>
<CAPTION>
=========================================================================================
             Subsidiary Name                   State of            Qualified in:
                                             Incorporation
- -----------------------------------------------------------------------------------------
<S>                                          <C>              <C>
1.  TeleCorp Communications, Inc.                 DE          AR, DC, IL, IN, LA, MA,
                                                              MO, MS, NH, TN, TX, VA
- -----------------------------------------------------------------------------------------
2.  TeleCorp Holding Corp., Inc.                  DE          LA, MA, NH, TN, TX, VA/1/
- -----------------------------------------------------------------------------------------
3.  TeleCorp Limited Holdings, Inc.               DE          AR, DC, IL, MA, MS
- -----------------------------------------------------------------------------------------
4.  TeleCorp Realty Holdings, Inc.                DE                     None
- -----------------------------------------------------------------------------------------
5.  TeleCorp PCS, L.L.C.
    (Sole Member is: TeleCorp PCS, Inc.)          DE                     None

- -----------------------------------------------------------------------------------------
6.  TeleCorp Realty, L.L.C.                       DE          AR, DC, IL, LA, MA, MO,
    (Managing Member is: TeleCorp                             MS, NH, TN, TX
    Communications, Inc.)
- -----------------------------------------------------------------------------------------
7.  TeleCorp Equipment Leasing, L.P.              DE          AR, DC, IL, IN, LA, MA,
    (General Partner is: TeleCorp Limited                     MO, MS, NH, TN, TX
    Holdings, Inc.)
=========================================================================================
</TABLE>

_____________________
/1/ TeleCorp Holding Corp will be withdrawn from each of the states in which it
is qualified (except Delaware) upon the filing of the company's tax returns for
the year ended December 31, 1998.

<PAGE>

                                                                 EXHIBIT 10.10.1

================================================================================

                            STOCK PURCHASE AGREEMENT

                                  by and among

                              VIPER WIRELESS, INC.

                          TELECORP HOLDING CORP., INC.

                             and TELECORP PCS, INC.

                           Dated as of March 1, 1999

================================================================================
<PAGE>

                            STOCK PURCHASE AGREEMENT
                            ------------------------

  STOCK PURCHASE AGREEMENT dated as of March 1, 1999 by and among Viper
Wireless, Inc., a Delaware corporation (the "Company"), TeleCorp Holding Corp.,
Inc. a Delaware corporation (the "Purchaser") and TeleCorp PCS, Inc., a Delaware
corporation (the "Parent").

  WHEREAS, the Purchaser is the wholly-owned subsidiary of the Parent;

  WHEREAS the Company is seeking to raise $25,000,000 from investors to fund its
participation in the reauction conducted by the Federal Communications
Commission ("FCC") for the sale of broadband Personal Communications Services
("PCS") licenses (the "PCS Licenses") in the "C" Block (the "PCS "C" Block
Auction"), as set forth in Parts 1 and 24 of Title 47 of the Code of Federal
Regulations (the "CFR"), scheduled to commence on March 23, 1999;

  WHEREAS, the Purchaser is committing to invest up to $25,000,000 in the
Company at one or more Closings (hereinafter defined) in consideration of the
issuance by the Company of 100,000 shares of its Series A Preferred Stock, $.01
par value per share and 42,500 shares of its Class B Common Stock, no par value
per share (collectively, the "Securities"), and the Company wishes to issue and
sell the Securities to the Purchaser, all on the terms and subject to the
conditions herein set forth;

  WHEREAS, in order to fund the Purchaser's purchase of the Securities, the
Parent wishes to contribute up to $25,000,000 to the capital of the Purchaser,
but solely subject to the terms and conditions set forth, and the Purchaser is
willing to accept such capital contribution subject to said terms and
conditions.

  NOW THEREFORE, in consideration of the promises and the mutual
representations, warranties, covenants, conditions and agreements hereafter set
forth, the parties agree as follows: covenants herein contained and other good
and valuable consideration, the receipt and sufficiency of which is hereby
acknowledged, the parties hereto agree as follows:

                                   ARTICLE I

                                  DEFINITIONS

          For purposes of this Agreement:

          "Accrued Dividend" with respect to any date, means $250 multiplied by
           ----------------
0.10 multiplied by a fraction, the numerator of which is the number of days
elapsed since the Closing Date and the denominator is 365.

          "Affiliate" means, with respect to any Person, any other Person that
           ---------
directly, or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with that Person.  For purposes of this
definition, "control" (including the terms "controlling" and "controlled") means
             -------                        -----------       ----------
the power to direct or cause the direction of the
<PAGE>

management and policies of a Person, directly or indirectly, whether through the
ownership of securities or partnership or other ownership interests, by contract
or otherwise.

          "Aggregate Commitment" means $25,000,000.
           --------------------

          "Agreement" means this Stock Purchase Agreement, as the same may be
           ---------
amended, modified or supplemented in accordance with the terms hereof.

          "Business Day" means any day other than a Saturday, Sunday or a legal
           ------------
holiday in New York, New York or any other day on which commercial banks in New
York, New York are authorized by law or governmental decree to close.

          "Capital Stock" means any and all shares, interests, participations or
           -------------
other equivalents (however designated) of capital stock of a corporation, and
any and all equivalent ownership interests in a Person (other than a
corporation) and any and all warrants, rights or options to purchase or
subscribe for any of the foregoing or any warrants, rights or options to
purchase or subscribe for any such warrants, rights or options.

          "Claim" has the meaning set forth in Section 8.5(a).
           -----

          "Class A Common Stock" means the Class A Common Stock, no par value
           --------------------
per share, of the Company.

          "Class B Common Stock" means the Class B Common Stock, no par value
           --------------------
per share, of the Company.

          "Closing" has the meaning set forth in Section 3.1.
           -------

          "Closing Date" has the meaning set forth in Section 3.1.
           ------------

          "Common Stock" means, collectively, Class A Common Stock and Class B
           ------------
Common Stock.

          "Company" has the meaning set forth in the preamble.
           -------

          "Confidential Information" means any and all information regarding the
           ------------------------
business, finances, operations, products, services and customers of the Person
specified and its Affiliates, in written or oral form or in any other medium.

          "Consents" means all consents and approvals of Governmental
           --------
Authorities or other third parties necessary to authorize, approve or permit the
parties hereto to consummate the Transactions and for the Company to operate its
business after the Closing Date as currently contemplated.

          "Courts" has the meaning set forth in Section 10.6.
           ------

                                      -2-
<PAGE>

          "Credit Agreement" means the agreement among the Parent, the lenders
           ----------------
and the agents referred to therein, as of July 17, 1998, providing a credit
facility having aggregate commitments of $525 million, as amended to date and as
the same may be further amended, modified or supplemented in accordance with the
terms thereof.

          "Excess Funds" has the meaning set forth in Section 2.1(b).
           ------------

          "FCC" means the Federal Communications Commission or similar
           ---
regulatory authority established in replacement thereof.

          "FCC Law" means the Communications Act of 1934, as amended, including
           -------
as amended by the Telecommunications Act of 1996, and the rules, regulations and
policies promulgated thereunder.

          "Funding Date" and "Funding Dates" and have the meanings set forth in
           ------------       -------------
Section 2.1.

          "Governmental Authority" means a Federal, state or local court,
           ----------------------
legislature, governmental agency (including, without limitation, the United
States Department of Justice), commission or regulatory or administrative
authority or instrumentality.

          "Indemnified Party" has the meaning set forth in Section 8.4(a).
           -----------------

          "Indemnifying Party" has the meaning set forth in Section 8.4(a).
           ------------------

          "Initial Cash Contribution" means $17,818,549.
           -------------------------

          "Law" means applicable common law and any statute, ordinance, code or
           ---
other law, rule, permit, permit condition, regulation, order, decree, technical
or other standard, requirement or procedure enacted, adopted, promulgated,
applied or followed by any Governmental Authority.

          "License" means a license, permit, certificate of authority, waiver,
           -------
approval, certificate of public convenience and necessity, registration or other
authorization, consent or clearance to construct or operate a facility,
including any emissions, discharges or releases therefrom, or to transact an
activity or business, to construct a tower or to use an asset or process, in
each case issued or granted by a Governmental Authority.

          "Lien" means, with respect to any asset, any mortgage, lien, pledge,
           ----
charge, security interest, right of first refusal or right of others therein, or
encumbrance of any nature whatsoever in respect of such asset.

          "Losses" has the meaning set forth in Section 8.2.
           ------

          "Material Adverse Effect" means a material adverse effect on the
           -----------------------
business, financial condition, assets, liabilities or results of operations or
prospects of the Person specified.

                                      -3-
<PAGE>

          "PCS" has the meaning set forth in the preamble.
           ---

          "PCS `C' Block Auction" has the meaning set forth in the preamble.
           ---------------------

          "PCS Licenses" has the meaning set forth in the preamble.
           ------------

          "Person" means an individual, corporation, partnership, limited
           ------
liability company, association, joint stock company, Governmental Authority,
business trust, unincorporated organization, or other legal entity.

          "Preferred Stock" means the Series A Preferred Stock, no par value per
           ---------------
share, of the Company.

          "Purchaser" has the meaning set forth in the preamble.
           ---------

          "Required Funds" has the meaning set forth in Section 2.1(b).
           --------------

          "Restated Certificate" means the Amended and Restated Certificate of
           --------------------
Incorporation of the Company, dated as of the Closing Date.

          "Section 8.2 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.2.

          "Section 8.3 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.3.

          "Securities" has the meaning set forth in the preamble.
           ----------

          "Securities Act" means the Securities Act of 1933, as amended.
           --------------

          "Subsidiary" shall mean, with respect to any Person, a corporation or
           ----------
other entity of which 50% or more of the voting power or the voting equity
securities or equity interest is owned, directly or indirectly, by such Person.

          "Transactions" means the transactions contemplated by this Agreement.
           ------------

          When a reference is made in this Agreement to an Article or a Section,
such reference shall be to an Article or a Section of this Agreement unless
otherwise indicated.  Unless the context otherwise requires, the terms defined
hereunder shall have the meanings therein specified for all purposes of this
Agreement, applicable to both the singular and plural forms of any of the terms
defined herein.  Whenever the words "include," "includes" or "including" are
used in this Agreement, they shall be deemed to be followed by the words
"without limitation."  The use of a gender herein shall be deemed to include the
neuter, masculine and feminine genders whenever necessary or appropriate.
Whenever the word "herein" or "hereof" is used in this Agreement, it shall be
deemed to refer to this Agreement and not to a particular Section of this
Agreement unless expressly stated otherwise.

                                      -4-
<PAGE>

                                  ARTICLE II

                               PURCHASE AND SALE
                               -----------------

                OF SECURITIES; CERTAIN RESTRICTIONS ON TRANSFER
                -----------------------------------------------

     2.1. Purchase and Sale of Securities. (a)  Upon the terms and subject to
          -------------------------------
the conditions hereof and in reliance upon the representations, warranties and
agreements herein contained:  (i) effective upon the Closing, Purchaser hereby
irrevocably commits to contribute to the capital of the Company an amount equal
to its Aggregate Commitment, and (ii) at the Closing, shall contribute to the
capital of the Company an amount equal to its Initial Cash Contribution and the
Company shall accept such capital contribution.  Upon prior notice from the
Company, Purchaser shall contribute to the capital of the Company additional
amounts as requested by the Company, up to an aggregate amount equal to its
Aggregate Commitment over the Initial Cash Contribution, on the dates specified
by the Company in such notices (each such date, a "Funding Date" and
collectively with the Closing Date, the "Funding Dates").  The obligation of the
Purchaser to make such additional capital contributions in respect of its
Aggregate Commitment in accordance with this Section 2.1 is sometimes referred
to herein as the "Unfunded Commitment."  The Purchaser acknowledges and agrees
                  -------------------
that its obligation to make capital contributions to the Company after the
Closing Date in respect of its Unfunded Commitment constitutes an irrevocable
and unconditional obligation, and shall not be subject to counterclaim, set-off,
deduction or defense, or to abatement, suspension, deferment, diminution or
reduction for any reason whatsoever.  By way of amplification, and not in
limitation of the foregoing, the Purchaser further acknowledges and agrees to
fulfill its obligations in respect of its Unfunded Commitment regardless of any
claims it may have against any other Person (whether or not related to the
Transactions) and regardless of the existence or non-existence of any facts or
circumstances (whether or not such facts and circumstances existed on the date
hereof or the Closing Date or were then known by it).

          (b)  In the event that the amounts paid to the Company on the Funding
Dates exceeds the amount required by the Company (i) to acquire any PCS Licenses
awarded to the Company at the PCS `C' Block Auction and (ii) to pay fees and
expenses incurred in connection with the Transactions (the "Required Funds"),
the Company shall use its best efforts to secure the return of the excess of
such funds over the Required Funds (the "Excess Funds") as soon as practicable
and shall, no later than the 2nd Business Day following the return of the Excess
Funds from the FCC (the "Redemption Date"), redeem from the Purchaser that
number of shares of Preferred Stock which is equal to the amount of the Excess
Funds divided by the sum of (x) $250 and (y) the Accrued Dividend as of the
Redemption Date (the "Redeemed Shares").  Upon such redemption, the Purchaser
shall deliver to the Company a stock certificate or certificates, duly endorsed
for transfer to the Company, or accompanied by duly endorsed stock powers,
representing the Redeemed Shares.  As payment in full for the Redeemed Shares,
and against delivery of the stock certificate or certificates therefor as
aforesaid, upon such redemption, the Company shall deliver to the Purchaser, by
federal wire transfer of immediately available funds in accordance with wire
transfer instructions provided by the Purchaser, an amount equal to the Excess
Funds.

          (c)  In the event that the Company is not awarded any PCS Licenses at
the PCS `C' Block Auction, or the Company shall stop bidding at the PCS `C'
Block Auction, the

                                      -5-
<PAGE>

Company shall use its best efforts to secure the return of its funds as soon as
is practicable and shall, within 2 business days of the return of its funds from
the FCC, redeem from the Purchaser all of the Preferred Stock purchased
hereunder. Upon such redemption, the Purchaser shall deliver to the Company a
stock certificate or certificates, duly endorsed for transfer to the Company, or
accompanied by duly endorsed stock powers, representing such Preferred Stock. As
payment in full for such Preferred Stock, and against delivery of the stock
certificate or certificates therefor as aforesaid, upon such redemption, the
Company shall deliver to the Purchaser, by federal wire transfer of immediately
available funds in accordance with wire transfer instructions provided by the
Purchaser, an amount equal to the Purchase Price.

          (d)  In order to fund the purchase of the Securities, on or before
each of the Funding Dates, upon prior notice from the Purchaser, the Parent
shall, subject to the conditions set forth herein, contribute the amounts
specified by the Purchaser, up to an aggregate of $25,000,000, to the capital of
the Purchaser (the "Capital Contributions").  The Capital Contributions shall be
used only for the purchase of the Securities by the Purchaser and for no other
purpose.  In the event that the Purchaser receives from the Company Excess Funds
pursuant to subsections 2.1(b) or 2.1(c) above, the Purchaser shall immediately
return the full amount of the Excess Funds to the Parent as a return of capital.
The Parent acknowledges and agrees that its obligation to make capital
contributions to the Purchaser constitutes an irrevocable and unconditional
obligation, and shall not be subject to counterclaim, set-off, deduction or
defense, or to abatement, suspension, deferment, diminution or reduction for any
reason whatsoever.  By way of amplification, and not in limitation of the
foregoing, the Parent further acknowledges and agrees to fulfill its obligations
in respect of its capital contributions regardless of any claims it may have
against any other Person (whether or not related to the Transactions) and
regardless of the existence or non-existence of any facts or circumstances
(whether or not such facts and circumstances existed on the date hereof or the
Closing Date or were then known by it).

     2.2  Issuance of Securities.  At the Closing, the Company shall issue and
          ----------------------
deliver to the Purchaser the shares of Class B Common Stock and Preferred Stock
set forth on Schedule I attached hereto.  At each subsequent Funding Date, the
Company shall issue and deliver to the Purchaser the number of shares of
preferred stock which are equal to100,000 multiplied by the quotient of the
dollar amount contributed on such Funding date divided by the Aggregate
Commitment.

     2.3  Restrictive Legends.  Each certificate representing the Securities
          -------------------
will bear a legend, in addition to any legends otherwise required by Law,
reading substantially as follows until such Securities have been sold pursuant
to an effective registration statement under the Securities Act, Rule 144 under
the Securities Act, or an opinion of counsel reasonably satisfactory in form and
substance to the Company and otherwise in full compliance with any other
applicable restrictions on transfer, including those contained in this
Agreement:

     "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE BEEN
     ACQUIRED FOR INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE
     SECURITIES ACT OF 1933, AS AMENDED (THE `ACT'), OR UNDER ANY
     STATE SECURITIES OR `BLUE SKY' LAWS. SAID SECURITIES MAY NOT BE
     SOLD, TRANSFERRED,
                                      -6-
<PAGE>

     ASSIGNED, PLEDGED, HYPOTHECATED OR OTHERWISE DISPOSED OF, UNLESS
     AND UNTIL REGISTERED UNDER THE ACT AND THE RULES AND REGULATIONS
     THEREUNDER AND ALL APPLICABLE STATE SECURITIES OR `BLUE SKY' LAWS
     OR EXEMPTED THEREFROM UNDER THE ACT AND ALL APPLICABLE STATE
     SECURITIES OR `BLUE SKY' LAWS."

     2.4. Use of Proceeds.  The Company shall use the net cash proceeds of its
          ---------------
sale of Securities to the Purchaser hereunder to fund its purchase of PCS
Licenses at the PCS `C' Block Auction and to pay fees and expenses incurred in
connection with the Transactions.

                                  ARTICLE III

                                    CLOSING

     3.1. Time and Place of Closing.  Upon the terms and subject to the
          -------------------------
conditions hereof, the closing of the Transactions (the "Closing") shall take
                                              -------
place at the offices of McDermott, Will & Emery, 28 State Street, Floor 33,
Boston, Massachusetts at 10:00 a.m. local time simultaneously with the execution
hereof, or at such other place and/or time and/or on such other date as the
parties may agree (the "Closing Date"). The Closing shall be deemed to have
                        ------------
occurred as of 12:01 a.m. on the Closing Date.

     3.2. Closing Actions and Deliveries. To effect the purchase and sale of the
          ------------------------------
Securities and consummate the other Transactions, the parties shall on the
Closing Date take the following actions:

          (a) Capital Contribution. The Parent shall contribute an amount equal
              --------------------
to the Initial Cash Contribution to the Purchaser.

          (b) Purchaser Payment. The Purchaser shall deliver to the Company by
              -----------------
wire transfer of immediately available funds to the account designated by the
Company on or prior to the Closing Date an amount equal to the Initial Cash
Contribution.

          (c) Delivery of Securities. The Company shall deliver to the Purchaser
              ----------------------
certificates duly executed by authorized signatories of the Company,
representing the Securities to be issued to it in accordance with the terms of
Section 2.2.

          (d) Other Deliveries. The parties shall execute and deliver or cause
              ----------------
to be executed and delivered all other documents, instruments, opinions and
certificates contemplated by this Agreement to be delivered at the Closing or
necessary and appropriate in order to consummate the Transactions contemplated
to be consummated on the Closing Date.

     3.3. Closing Costs; Taxes and Fees.  The Company shall pay or cause to be
          -----------------------------
paid at the Closing or, if due prior to the Closing or thereafter, promptly when
due, all transfer taxes (including sales taxes, gross receipts taxes, stamp
taxes, and other taxes) payable solely as a result of a transfer of the
Contributions pursuant to this Agreement, but excluding any federal, state,
local or other jurisdictional income taxes (or franchise, excise, gross receipts
or other taxes that are generally

                                      -8-
<PAGE>

imposed on a party on a periodic basis as a result of a party's status,
presence, conduct of business, holding of assets, income, revenues, activities
or other items).

                                  ARTICLE IV

                REPRESENTATIONS AND WARRANTIES OF THE PURCHASER

          The Purchaser represents and warrants to the Company as follows:

     4.1. Organization, Power and Authority.
          ---------------------------------

          (a)  The Purchaser is a corporation, duly organized, validly existing
and in good standing under the Laws of its jurisdiction of organization and has
the requisite power and authority to own, lease and operate its properties and
to carry on its business as now being conducted.

          (b)  It has the requisite power and authority to execute, deliver and
perform this Agreement, and each other instrument, document, certificate and
agreement required or contemplated to be executed, delivered and performed by it
hereunder and thereunder to which it is or will be a party.

          (c)  It is duly qualified to do business in each jurisdiction where
the character of its properties owned or held under lease or the nature of its
activities makes such qualification necessary other than any such jurisdiction
in which the failure to be so qualified would not have a Material Adverse Effect
on it or materially adversely affect the Transactions.

          (d) The execution and delivery of this Agreement by it and the
consummation of the Transactions by it have been duly and validly authorized by
its Board of Directors (or equivalent body) and no other proceedings on its part
which have not been taken (including, without limitation, approval of its
stockholders, partners or members) are necessary to authorize this Agreement or
to consummate the Transactions.

          (e) This Agreement has been duly executed and delivered by it and
constitutes its valid and binding obligation, enforceable against it in
accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar Laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity.

          (f)  As of the Closing Date, after giving effect to the Transactions,
it is not in breach of any obligation under this Agreement.

     4.2. Consents; No Conflicts. Neither the execution, delivery and
          ----------------------
performance by it of this Agreement nor the consummation of the Transactions
will (a) conflict with, or result in a breach or violation of, any provision of
its organizational documents; (b) subject to obtaining the Consents set forth on
Schedule 4.2, constitute, with or without the giving of notice or passage of
time or both, a breach, violation or default, create a Lien, or give rise to any
right of termination, modification, cancellation, prepayment or acceleration,
under (i) any Law or License or (ii) any note, bond,

                                      -8-
<PAGE>

mortgage, indenture, lease, agreement or other instrument, in each case which is
applicable to or binding upon it or any of its assets; or (c) require any
Consent, other than those set forth on Schedule 4.2 or the approval of its board
of directors, general partner, stockholders or similar constituent bodies, as
the case may be (which approvals have been obtained), except in each case, where
such breach, violation, default, Lien, right, or the failure to obtain or give
such Consent would not have a Material Adverse Effect on it or materially
adversely affect the Transactions. To its knowledge, there is no fact relating
to it or its Affiliates that would be reasonably expected to prevent it from
consummating the Transactions.

     4.3. Litigation. There is no action, proceeding or investigation pending
          ----------
or, to its knowledge, threatened against it or any of its properties or assets
that would be reasonably expected to have an adverse effect on its ability to
consummate the Transactions to which it is a party or to fulfill its obligations
under this Agreement or which seeks to prevent or challenge the Transactions.

     4.4. FCC Compliance.  It complies with all eligibility rules issued by the
          --------------
FCC to hold broadband PCS Licenses, including without limitation, FCC rules on
foreign ownership.  Set forth opposite its name on Schedule 4.4 are all
"attributable" interests (within the meaning of Section 20.6 of the FCC's Rules)
that it holds in CMRS licenses that overlap the territory covered by the PCS
Licenses to be bid on at the PCS "C" Block Auction.

     4.5. Brokers. It has not employed any broker, finder or investment banker
          -------
or incurred any liability for any brokerage fees, commissions or finder's fees
in connection with the Transactions.

     4.6. No Distribution.  It is acquiring the Securities to be acquired by it
          ---------------
hereunder for the purpose of investment and not with a view to or for sale in
connection with any distribution thereof (other than in compliance with the
Securities Act and all applicable state securities laws).

     4.7. Investor Acknowledgments.  (a)  It is an "accredited investor" as
          ------------------------
defined in Regulation D of the Securities Act.  Its representatives have been
provided an opportunity to ask questions of, and have received answers thereto
from, the Company and its representatives regarding the terms and conditions of
its purchase of Securities, and the Company and its proposed business generally,
and have obtained all additional information requested by it to verify the
accuracy of all information furnished to it in connection with such purchase.

          (b)  It has such knowledge and experience in financial and business
affairs that it is capable of evaluating the merits and risks of purchasing the
Securities it is purchasing hereunder.

          (c) It is not relying on and acknowledges that no representation is
being made by the Company or any of its officers, employees, Affiliates, agents
or representatives, except for representations and warranties expressly set
forth in this Agreement, and, in particular, it is not relying on, and
acknowledges that no representation is being made in respect of, (x) any
projections, estimates or budgets delivered to or made available to them of
future revenues, expenses or expenditures, or future results of operations and
(y) any other information or documents delivered or made available to it or its
representatives, except for representations and warranties expressly set forth
in this Agreement and such information and documents obtained by it as a
stockholder of the

                                      -9-
<PAGE>

Company and through its representatives who serve as members of the Company's
board of directors, as the case may be.

          (d)  In deciding to invest in the Company, it has relied exclusively
on the representations and warranties expressly set forth in this Agreement, and
the investigations made by itself and its representatives and its and such
representatives' knowledge of the industry in which the Company proposes to
operate. Based solely on such representations and warranties and such
investigations and knowledge and such information obtained by him or it by
virtue of his or its status as a stockholder of the Company, and through its
representatives who serve as members of the Company's board of directors, as the
case may be, it has determined that the Securities it is acquiring are a
suitable investment for it.

          (e) The Purchaser understands that the Securities purchased hereby may
not be sold, transferred, or otherwise disposed of without registration under
the Securities Act or an exemption therefrom, and that in the absence of an
effective registration statement covering the Securities or an available
exemption from registration under the Securities Act, the Securities must be
held indefinitely. In particular, the Purchaser is aware that none of the
Securities may be sold pursuant to Rule 144 promulgated under the Securities Act
unless all of the conditions of that Rule are met. Among the conditions for use
of Rule 144 may be the availability of current information to the public about
the Company.

                                   ARTICLE V

                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY

          The Company represents and warrants to the Purchaser as follows:

     5.1. Organization, Power and Authority.  (a)  The Company is a corporation
          ---------------------------------
duly organized, validly existing and in good standing under the Laws of the
jurisdiction of its incorporation and has the requisite corporate power and
authority to own, lease and operate its properties and to carry on its business
as now being conducted and as proposed to be conducted.

          (b)  It has the requisite power, authority and/or legal capacity to
execute, deliver and perform this Agreement and each other instrument, document,
certificate and agreement required or contemplated to be executed, delivered and
performed by it hereunder and thereunder to which it is or will be a party.

          (c)  The Company is duly qualified to do business in each jurisdiction
where the character of its properties owned or held under lease or the nature of
its activities makes such qualification necessary other than any such
jurisdiction in which the failure to be so qualified would not have a Material
Adverse Effect on it or materially adversely affect the Transactions.

          (d) The execution and delivery of this Agreement and the consummation
of the Transactions by it have been duly and validly authorized by its Board of
Directors and shareholders and, except for the filing of an amendment to the
Company's Restated Certificate with the office of

                                     -10-
<PAGE>

the Secretary of State of Delaware, no other proceedings which have not been
taken are necessary to authorize this Agreement or to consummate the
Transactions.

          (e) This Agreement has been duly executed and delivered by it and
constitutes the valid and binding obligation of it, enforceable against it in
accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar Laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity.

          (f) As of the Closing, after giving effect to the Transactions, it is
not in breach of any obligation under this Agreement.

     5.2. Consents; No Conflicts. Neither the execution, delivery and
          ----------------------
performance of this Agreement nor the consummation of the Transactions will (a)
conflict with, or result in a breach or violation of, any provision of its
organizational documents; (b) subject to obtaining the Consents set forth on
Schedule 5.2, constitute, with or without the giving of notice or passage of
time or both, a breach, violation or default, create a Lien, or give rise to any
right of termination, modification, cancellation, prepayment or acceleration,
under (i) any Law or License, or (ii) any note, bond, mortgage, indenture,
lease, agreement or other instrument, in each case which is applicable to or
binding upon it or any of its assets; or (c) require any Consent, other than
those set forth on Schedule 5.2 or the approval of its Board of Directors or its
stockholders (which approval has been obtained), except in each case where such
breach, violation, default, Lien, right, or the failure to obtain or give such
Consent would not have a Material Adverse Effect on it or materially adversely
affect the Transactions or the operation of its business after the Closing Date.
To its knowledge, there is no fact relating to it or its Affiliates that would
be reasonably expected to prevent it from consummating the Transactions or
performing its obligations under this Agreement or disqualify it from obtaining
the Consents required in order to consummate the Transactions.

     5.3. Litigation. There is no action, proceeding or investigation pending
          ----------
or, to its knowledge, threatened against it or any of its properties or assets
that would have an adverse effect on its ability to consummate the Transactions
to which it is a party or to fulfill its obligations under this Agreement or to
operate its business after the Closing Date, or which seeks to prevent or
challenge the Transactions. There is no judgment, decree, injunction, rule or
order outstanding against it which would limit in any material respect its
ability to operate its business in the manner currently contemplated.

     5.4. FCC Compliance. The Company complies, and after giving effect to the
          --------------
Transactions will comply, with all eligibility rules issued by the FCC to hold
broadband PCS Licenses, including FCC rules on foreign ownership and the CMRS
spectrum cap.

     5.5. Brokers. It has not employed any broker, finder or investment banker
          -------
or incurred any liability for any brokerage fees, commissions or finder's fees
in connection with the Transactions.

     5.6. Capitalization (a) As of the date hereof, the authorized capital stock
          --------------
of the Company consists of 15,000 shares of Class A Common Stock, of which 7,500
shares are currently issued and

                                     -11-
<PAGE>

outstanding and 85,000 shares of Class B Common Stock, none of which is
currently issued and outstanding. As of the Closing Date, after giving effect to
the filing of the Restated Certificate and the Transactions there will be issued
and outstanding the shares of Preferred Stock and Common Stock set forth on
Schedule I. The record and beneficial owners of such outstanding shares of
Common Stock and Preferred Stock, as of the Closing Date, after giving effect to
the Transactions, are set forth on Schedule I.

          (b) Except as set forth on Schedule 5.6, on the Closing Date, after
giving effect to the Transactions, there will not be any existing options,
warrants, calls, subscriptions, or other rights, or other agreements or
commitments, obligating the Company to issue, transfer or sell any shares of
capital stock of the Company, except the Securities being sold hereunder.

     5.7. Shares.  The Securities being issued to the Purchaser hereunder, when
          ------
issued and paid for pursuant to the terms of this Agreement and after giving
effect to the filing of the Restated Certificate, will be duly authorized,
validly issued, fully paid and non-assessable, and will be free of any Liens
caused or created by the Company, except as set forth in the Restated
Certificate.

     5.8. Offering of Securities.  (a)  None of the Company or any Person acting
          ----------------------
on its behalf has offered the Securities or any similar equity securities of the
Company for sale to, or solicited any offers to buy Securities or any similar
equity securities of the Company from, any Person, other than the Purchaser and
a limited number of other "accredited investors" (as defined in Rule 501(a)
under the Securities Act).

          (b) None of the Company or any Person acting on its behalf will,
directly or indirectly, take any action which might subject the offering,
issuance or sale of the Securities to the registration and prospectus delivery
requirements of Section 5 of the Securities Act.

          (c) Assuming the accuracy of the representations and warranties of the
Purchaser contained in Section 4.7, each of the offering and sale of Securities
under this Agreement to the Purchaser complies with all applicable requirements
of Federal and state securities laws.

     5.9. Subsidiaries.  The Company has no Subsidiaries.
          ------------

                                  ARTICLE VI

                                   COVENANTS

     6.1. Consummation of Transactions.  Each party shall use all commercially
          ----------------------------
reasonable efforts to take, or cause to be taken, all actions, and to do, or
cause to be done, all things necessary, proper or advisable and consistent with
applicable law to carry out all of their respective obligations under this
Agreement and to consummate the Transactions, which efforts shall include,
without limitation, the following:

          (a)  The parties shall use all commercially reasonable efforts to
cause the Closing to occur and the Transactions to be consummated in accordance
with the terms hereof, and, without limiting the generality of the foregoing, to
obtain all necessary Consents including the approval of

                                     -12-
<PAGE>

this Agreement and the Transactions by all Governmental Authorities and
agencies, including the FCC delivery and performance of this Agreement or the
consummation of the Transactions, and to make all filings with and to give all
notices to third parties which may be necessary or reasonably required in order
for the parties to consummate the Transactions.

          (b) Each party shall furnish to the other parties all information
concerning such party and its Affiliates reasonably required for inclusion in
any application or filing to be made by the Company or any other party in
connection with the Transactions or otherwise to determine compliance with
applicable FCC Law.

          (c) Upon the request of any other party, each party shall forthwith
execute and deliver, or cause to be executed and delivered, such further
instruments of assignment, transfer, conveyance, endorsement, direction or
authorization and other documents as may reasonably be requested by such party
in order to effectuate the purposes of this Agreement.

     6.2. Use of Proceeds.  The Company shall use the proceeds of the sale of
          ---------------
Securities only for the purposes described in Section 2.4.

     6.3. Offering of Securities. None of the Company or any Person acting on
          ----------------------
its behalf will, directly or indirectly, take any action which might subject the
offering, license or sale of the Securities to the registration and prospectus
delivery requirements of Section 5 of the Securities Act.


                                  ARTICLE VII

                            [INTENTIONALLY OMITTED]

                                 ARTICLE VIII

                         SURVIVAL AND INDEMNIFICATION

     8.1. Survival. Except for the representations and warranties contained in
          --------
Sections 4.1(a), (b), (d) and (e), and 5.1(a), (b), (d) and (e) (which shall
survive the Closing, without regard to any investigation made by any of the
parties hereto, until the expiration of the applicable statute of limitations
relating thereto), the representations and warranties made in this Agreement
shall survive the Closing without regard to any investigation made by any of the
parties hereto until the second anniversary thereof and shall thereupon expire
together with any right to indemnification in respect thereof (except to the
extent a written notice asserting a claim for breach of any such representation
or warranty and describing such claim in reasonable detail shall have been given
prior to the expiration of the applicable survival period to the party which
made such representation or warranty). The covenants and agreements contained
herein to be performed or complied with prior to the Closing shall expire at the
Closing. The covenants and agreements contained in this Agreement to be
performed or complied with after the Closing shall survive the Closing; provided
that the right to indemnification pursuant to this Article VIII in respect of a
breach of a representation or warranty shall expire upon the application of the
applicable survival period of the Closing (except to the extent written notice
asserting a claim thereunder and describing such claim

                                     -13-
<PAGE>

in reasonable detail shall have been given prior to such expiration to the party
from whom such indemnification is sought). After the Closing, the sole and
exclusive remedy of the parties for any breach or inaccuracy of any
representation or warranty contained in this Agreement, or any other claim
(whether or not alleging a breach of this Agreement) that arises out of the
facts and circumstances constituting such breach or inaccuracy, shall be the
indemnity provided in this Article VIII.

     8.2. Indemnification by the Purchaser. The Purchaser shall indemnify and
          --------------------------------
hold harmless the Company and its Affiliates, and the shareholders, members,
managers, officers, employees, agents and/or the legal representatives of any of
them (each, a "Section 8.2 Indemnified Party"), against all liabilities and
               -----------------------------
expenses (including amounts paid in satisfaction of judgments, in compromise, as
fines and penalties, and as counsel fees) (collectively, "Losses") incurred by
                                                          ------
him or it in connection with the investigation, defense, or disposition of any
action, suit or other proceeding in which any Section 8.2 Indemnified Party may
be involved or with which he or it may be threatened (whether arising out of or
relating to matters asserted by third parties against a Section 8.2 Indemnified
Party or incurred or sustained by such party in the absence of a third-party
claim), that arises out of or results from (a) any representation or warranty of
the Purchaser contained in this Agreement being untrue in any material respect
as of the date on which it was made or (b) any material default by the Purchaser
or any of its Affiliates in the performance of their respective obligations
under this Agreement, except to the extent (but only to the extent) any such
Losses arise out of or result from the gross negligence or willful misconduct of
such Section 8.2 Indemnified Party or its Affiliates.

     8.3. Indemnification by the Company. The Company shall indemnify and hold
          ------------------------------
harmless the Purchaser and its Affiliates, and the shareholders, members,
managers, officers, employees, agents and/or the legal representatives of any of
them (each, a "Section 8.3 Indemnified Party"), against all Losses incurred by
               -----------------------------
him or it in connection with the investigation, defense, or disposition of any
action, suit or other proceeding in which any Section 8.3 Indemnified Party may
be involved or with which he or it may be threatened (whether arising out of or
relating to matters asserted by third parties against a Section 8.3 Indemnified
Party or incurred or sustained by such party in the absence of a third-party
claim), that arises out of or results from (a) any representation or warranty of
the Company contained in this Agreement being untrue in any material respect as
of the date on which it was made or (b) any material default by the Company or
any of its Affiliates in the performance of their respective obligations under
this Agreement, except to the extent (but only to the extent) any such Losses
arise out of or result from the gross negligence or willful misconduct of such
Section 8.3 Indemnified Party or its Affiliates.

                                     -14-
<PAGE>

     8.4. Procedures.
          ----------

          (a) The terms of this Section 8.4 shall apply to any claim (a "Claim")
                                                                         -----
for indemnification under the terms of Sections 8.2 or 8.3.  The Section 8.2
Indemnified Party or Indemnified Party (each, an "Indemnified Party"), as
                                                  -----------------
the case may be, shall give prompt written notice of such Claim to the
indemnifying party (the "Indemnifying Party") under the applicable Section,
                         ------------------
which party may assume the defense thereof, provided that any delay or failure
to so notify the Indemnifying Party shall relieve the Indemnifying Party of its
obligations hereunder only to the extent, if at all, that it is materially
prejudiced by reason of such delay or failure. The Indemnified Party shall have
the right to approve any counsel selected by the Indemnifying Party and to
approve the terms of any proposed settlement, such approval not to be
unreasonably delayed or withheld (unless, in the case of approval of a proposed
settlement, such settlement provides only, as to the Indemnified Party, the
payment of money damages actually paid by the Indemnifying Party and a complete
release of the Indemnified Party in respect of the claim in question).
Notwithstanding any of the foregoing to the contrary, the provisions of this
Article VIII shall not be construed so as to provide for the indemnification of
any Indemnified Party for any liability to the extent (but only to the extent)
that such indemnification would be in violation of applicable law or that such
liability may not be waived, modified or limited under applicable law, but shall
be construed so as to effectuate the provisions of this Article VIII to the
fullest extent permitted by law.

          (b) In the event that the Indemnifying Party undertakes the defense of
any Claim, the Indemnifying Party will keep the Indemnified Party advised as to
all material developments in connection with such Claim, including, but not
limited to, promptly furnishing the Indemnified Party with copies of all
material documents filed or served in connection therewith.

          (c) In the event that the Indemnifying Party fails to assume the
defense of any Claim within ten business days after receiving written notice
thereof, the Indemnified Party shall have the right, subject to the Indemnifying
Party's right to assume the defense pursuant to the provisions of this Article
VIII, to undertake the defense, compromise or settlement of such Claim for the
account of the Indemnifying Party. Unless and until the Indemnified Party
assumes the defense of any Claim, the Indemnifying Party shall advance to the
Indemnified Party any of its reasonable attorneys' fees and other costs and
expenses incurred in connection with the defense of any such action or
proceeding. Each Indemnified Party shall agree in writing prior to any such
advancement that, in the event he or it receives any such advance, such
Indemnified Party shall reimburse the Indemnifying Party for such fees, costs
and expenses to the extent that it shall be determined that he or it was not
entitled to indemnification under this Article VIII.

          (d) In no event shall an Indemnifying Party be required to pay in
connection with any Claim for more than one firm of counsel (and local counsel)
for each of the following groups of Indemnified Parties: (i) the Purchaser, its
Affiliates, and the shareholders, members, managers, officers, employees, agents
and/or the legal representatives of any of them; and (ii) the Company, its
respective Affiliates, and the shareholders, members, managers, officers,
employees, agents and/or the legal representatives of any of them.

                                     -15-
<PAGE>

                                  ARTICLE IX

                            [INTENTIONALLY OMITTED]

                                   ARTICLE X

                           MISCELLANEOUS PROVISIONS

     10.1.     Amendment and Modification. This Agreement may be amended,
               --------------------------
modified or of the parties.

     10.2.     Waiver of Compliance; Consents. Any failure of any of the parties
               ------------------------------
to comply with any obligation, covenant, agreement or condition herein may be
waived by the party or parties entitled to the benefits thereof only by a
written instrument signed by the party granting such waiver, but such waiver or
failure to insist upon strict compliance with such obligation, covenant,
agreement or condition shall not operate as a waiver of, or estoppel with
respect to, any subsequent or other failure. Whenever this Agreement requires or
permits consent by or on behalf of any party hereto, such consent shall be given
in writing in a manner consistent with the requirement for a waiver of
compliance as set forth in this Section 10.2.

     10.3.     Notices. All notices or other communications hereunder shall be
               -------
in writing and shall be given (and shall be deemed to have been duly given upon
receipt) by delivery in person against receipt, by facsimile transmission with
confirmation of receipt, or by registered or certified mail (return receipt
requested), postage prepaid, with an acknowledgment of receipt signed by the
addressee or an authorized representative thereof, addressed as follows (or to
such other address for a party as shall be specified by like notice; provided
that notice of a change of address shall be effective only upon receipt
thereof):

                                     -16-
<PAGE>

     If to a Purchaser, to it:

     1010 N. Glebe Road, Suite 800
     Arlington, Virginia  22201
     Attn:  General Counsel
     Facsimile: (703) 236-1376

     If to the Company, to it:

     1010 N. Glebe Road, Suite 800
     Arlington, Virginia  22201
     Attn:  General Counsel
     Facsimile: (703) 236-1376


     10.4.     Parties in Interest; Assignment. This Agreement is binding upon
               -------------------------------
and is solely for the benefit of the parties hereto and their respective
permitted successors, legal representatives and permitted assigns. Neither the
Company nor the Purchaser may assign its rights and obligations hereunder
without the prior written consent of each of the other parties.

     10.5.     Applicable Law. This Agreement shall be governed by and construed
               --------------
in accordance with the laws of the State of New York without giving effect to
the conflicts of law principles thereof. The parties hereto hereby irrevocably
and unconditionally consent to submit to the non-exclusive jurisdiction of the
courts of the State of New York and of the United States of America located in
the County of New York, New York (the "Courts") for any litigation arising out
                                       ------
of or relating to this Agreement and the Transactions, waive any objection to
the laying of venue of any such litigation in the Courts and agrees not to plead
or claim in any Court that such litigation brought therein has been brought in
an inconvenient forum.

     10.6.     Counterparts.  This Agreement may be executed in two or more
               ------------
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

     10.7.     Interpretation. The article and section headings contained in
               --------------
this Agreement are for convenience of reference only, are not part of the
agreement of the parties and shall not affect in any way the meaning or
interpretation of this Agreement.

     10.8.     Entire Agreement. This Agreement, including the exhibits and
               ----------------
schedules hereto and thereto and the certificates and instruments delivered
pursuant to the terms of this Agreement, embody the entire agreement and
understanding of the parties hereto in respect of the Transactions. There are no
restrictions, promises, representations, warranties, covenants or undertakings,
other than those expressly set forth or referred to herein. This Agreement
supersedes all prior agreements and understandings between the parties with
respect to such Transactions.

     10.9.     Publicity. So long as this Agreement is in effect, the parties
               ---------
agree to consult with each other in issuing any press release or otherwise
making any public statement with respect to the Transactions, and no party shall
issue any press release or make any such public statement prior to

                                     -17-
<PAGE>

such consultation, except as may be required by Law. No press release or other
public statement by the parties hereto shall disclose any of the financial terms
of the Transactions without the prior consent of the other parties, except as
may be required by Law. A breach of the provisions of this Section 10.10 by a
party shall not give rise to any right to terminate this Agreement.


     10.10.    Specific Performance.  The parties hereto agree that irreparable
               --------------------
damage would occur in the event that any of the provisions of this Agreement
were not performed in accordance with their specific terms or were otherwise
breached.  It is accordingly agreed that the parties shall be entitled to an
injunction or injunctions to prevent breaches of this Agreement and to enforce
specifically the terms and provisions hereof in any Courts.

     10.11.    Remedies Cumulative. All rights, powers and remedies provided
               -------------------
under this Agreement or otherwise available in respect hereof at law or in
equity shall be cumulative and not alternative, and the exercise or beginning of
the exercise of any thereof by any party shall not preclude the simultaneous or
later exercise of any other such right, power or remedy by such party.

     10.12.    Severability. Any provision of this Agreement that is prohibited
               ------------
or unenforceable in any jurisdiction shall, as to such jurisdiction, be
ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction. If any court determines
that any covenant or any part of any covenant is invalid or unenforceable, such
covenant shall be enforced to the extent permitted by such court, and all other
covenants shall not thereby be affected and shall be given full effect, without
regard to the invalid portions.

     10.13.    Beneficiaries of Agreement.  The representations, warranties,
               --------------------------
covenants and agreements expressed in this Agreement are for the sole benefit of
the other parties hereto and the Section 8.2 Indemnified Parties and Section 8.3
Indemnified Parties and are not intended to benefit, and may not be relied upon
or enforced by, any other party as a third party beneficiary or otherwise.

                                 [END OF PAGE]

                                     -18-
<PAGE>

          [EXECUTION PAGE OF STOCK PURCHASE AGREEMENT]

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first above written.

                                 VIPER WIRELESS, INC.

                                 By:  /s/ Thomas H. Sullivan
                                     ------------------------------
                                   Name:  Thomas H. Sullivan
                                   Title: President

                                 TELECORP HOLDING CORP., INC.


                                 By:  /s/ Thomas H. Sullivan
                                     ------------------------------
                                   Name:  Thomas H. Sullivan
                                   Title: President

                                 TELECORP PCS, INC.


                                 By:  /s/ Thomas H. Sullivan
                                     ------------------------------
                                   Name:  Thomas H. Sullivan
                                   Title: Executive Vice President


                                     -19-
<PAGE>

<TABLE>
<CAPTION>
<S>                          <C>                      <C>                     <C>
  Stockholder                Shares of Class A        Shares of Class B       Shares of Series A
                             Common Stock             Common Stock            Preferred Stock

Gerald Vento                 3,750                    0                       0

Thomas Sullivan              3,750                    0                       0

TeleCorp Holding             0                        42,500                  71,274.20
Corp., Inc.
</TABLE>

                                     -20-


<PAGE>

                                                                    SCHEDULE 4.2

                              Purchaser Consents
                              ------------------

                                        None.

                                     -21-
<PAGE>

                                                                    SCHEDULE 4.4

                            Attributable Interests
                            ----------------------

TeleCorp Holding Corp., Inc holds the following licenses:

1.  Beaumont-Port Arthur, TX BTA
2.  Little Rock, AR BTA
3.  Memphis, TN BTA
4.  New Orleans, LA BTA

Upon the closing of the transactions contemplated by the License Acquisition
Agreement by and between Mercury PCS II, LLC and TeleCorp PCS, Inc., TeleCorp
Holding Corp., Inc. will hold:

1.  Baton Rouge, LA BTA
2.  Hammond, LA BTA
3.  Houma-Thibodeaux, LA BTA
4.  Lafayette-New Iberia, LA BTA

Upon the closing of the transactions contemplated by the License Acquisition
Agreement by and between Wireless 2000, Inc. and TeleCorp PCS, Inc., TeleCorp
Holding Corp., Inc. will hold:

1.  Alexandria, LA  BTA
2.  Monroe, LA BTA
3.  Lake Charles, LA BTA

                                     -22-
<PAGE>

                                                                    SCHEDULE 5.2

                               Company Consents
                               ----------------

                                      None.

                                     -23-
<PAGE>

                                                                    SCHEDULE 5.6

                      Outstanding Options, Warrants, etc.
                      -----------------------------------


                                     None.

<PAGE>

                                                                   EXHIBIT 10.11


================================================================================



                      PUERTO RICO STOCK PURCHASE AGREEMENT

                                  by and among

                             CASH EQUITY INVESTORS,

                            MANAGEMENT STOCKHOLDERS,

                         PUERTO RICO ACQUISITION CORP.,



                                      and

                               TELECORP PCS, INC.

                           Dated as of March 30, 1999


===============================================================================
<PAGE>

                                                                  Exhibit 10.11.
                                                     Table of Contents: to Annex
                                                                  Draft 02/16/99

                                TABLE OF CONTENTS
                                -----------------

                                                                            Page
ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE.........................2
    SECTION 1.1   Terms Incorporated by Reference............................2
    SECTION 1.2   Additional Definitions.....................................2
    SECTION 1.3   Other Definitions..........................................7

ARTICLE II THE NOTES.........................................................8
    SECTION 2.1   Terms of Series E Notes....................................8
    SECTION 2.2   Execution and Authentication..............................10

ARTICLE III PREPAYMENTS AND MANDATORY REDEMPTIONS...........................10
    SECTION 3.1   Optional Prepayments......................................10
    SECTION 3.2   Premium...................................................11
    SECTION 3.3   Mandatory Redemption of Series E Notes....................11
    SECTION 3.4   Optional Redemption Upon Equity Issuance..................12
    SECTION 3.5   Acquisition of Notes......................................12

ARTICLE IV SUPPLEMENTARY COVENANTS..........................................12
    SECTION 4.1   Limitation on Transactions with Affiliates................12
    SECTION 4.2   Limitation on Incurrence of Indebtedness..................13
    SECTION 4.3   Limitation on Restricted Payments.........................15
    SECTION 4.4   Payment of Taxes and Other Claims.........................18
    SECTION 4.5   Notice of Defaults........................................19
    SECTION 4.6   Maintenance of Properties.................................19
    SECTION 4.7   Compliance Certificate....................................19
    SECTION 4.8   Provision of Financial Information........................20
    SECTION 4.9   Waiver of Stay, Extension or Usury Laws...................20
    SECTION 4.10  Limitation on Layered Debt................................20
    SECTION 4.11  Limitation on Restrictions Affecting Restricted
                   Subsidiaries.............................................21
    SECTION 4.12  Limitation on Liens.......................................21
    SECTION 4.13  Subsidiary Guarantees.....................................22
<PAGE>

    SECTION 4.14  Limitation on Activities of the Company and the
                   Restricted Subsidiaries..................................23
    SECTION 4.15  Amendments to Agreements..................................23

ARTICLE V EVENTS OF DEFAULT.................................................23
    SECTION 5.1   Events of Default.........................................23

ARTICLE VI SUBORDINATION....................................................24
    SECTION 6.1   Series E Notes Subordinate to Senior Debt.................24
    SECTION 6.2   Payment of Proceeds Upon Dissolution, Etc.................24
    SECTION 6.3   No Payment When Designated Senior Debt in Default.........26
    SECTION 6.4   Acceleration of Series E Notes............................27
    SECTION 6.5   Payment Permitted If No Default...........................28
    SECTION 6.6   Obligation of Company Unconditional.......................28
    SECTION 6.7   Subrogation To Rights of Holders of Senior Debt...........28
    SECTION 6.8   Provisions Solely To Define Relative Rights...............29
    SECTION 6.9   No Waiver of Subordination Provisions.....................29
    SECTION 6.10  Reliance On Judicial Order or Certificate of Liquidating
                   Agent....................................................30
    SECTION 6.11  Notice to Trustee.........................................30
    SECTION 6.12  Trustee's Relation to Senior Debt.........................31
    SECTION 6.13  Series E Note Holders Authorize Trustee to Effectuate
                   Subordination............................................31
    SECTION 6.14  This Article Not to Prevent Event of Default..............31
    SECTION 6.15  Trustee's Compensation Not Prejudiced.....................32
    SECTION 6.16  Subordination Provisions Not Applicable to Money Held in
                   Trust for Holders of Series E Notes; Payments May Be
                   Paid prior to Dissolution................................32

ARTICLE VII TAX MATTERS.....................................................32
    SECTION 7.1   Taxes.....................................................32

ARTICLE VIII      THE TRUSTEE...............................................35
    SECTION 8.1   Trustee's Disclaimer......................................35

ARTICLE IX GUARANTEE........................................................36
    SECTION 9.1   Unconditional Guarantee...................................36
    SECTION 9.2   Severability..............................................36
    SECTION 9.3   Release of a Guarantor....................................37
<PAGE>

    SECTION 9.4   Limitation of Guarantor's Liability.......................37
    SECTION 9.5   Contribution..............................................37
    SECTION 9.6   Execution of Guarantee....................................38
    SECTION 9.7   Subordination of Subrogation and Other Rights.............38

ARTICLE X SUBORDINATION OF GUARANTEE........................................38
    SECTION 10.1  Guarantee Obligations Subordinated to Designated Senior
                   Debt.....................................................38
    SECTION 10.2  Payment of Proceeds Upon Dissolution, Etc.................39
    SECTION 10.3  No Payment When Designated Senior Debt in Default.........40
    SECTION 10.4  Acceleration of Series E Notes............................42
    SECTION 10.5  Payments Permitted If No Default..........................42
    SECTION 10.6  Obligations of Guarantors Unconditional...................42
    SECTION 10.7  Subrogation To Rights of Holders of Designated Senior
                   Debt.....................................................43
    SECTION 10.8  Provisions Solely to Define Relative Rights...............43
    SECTION 10.9  No Waiver of Subordination Provisions.....................44
    SECTION 10.10 Reliance On Judicial Order or Certificate of Liquidating
                   Agent....................................................44
    SECTION 10.11 Notice to Trustee.........................................45
    SECTION 10.12 Trustee's Relation to Designated Senior Debt..............45
    SECTION 10.13 Series E Note Holders Authorize Trustee to Effectuate
                   Subordination............................................46
    SECTION 10.14 This Article Not to Prevent Event of Default..............46
    SECTION 10.15 Trustee's Compensation Not Prejudiced.....................46
    SECTION 10.16 Subordination Provisions Not Applicable to Money Held in
                   Trust for Holders of Series E Notes; Payments May Be
                   Paid prior to Dissolution................................46

ARTICLE XI MISCELLANEOUS....................................................47
    SECTION 11.1  Reference to Indenture....................................47
    SECTION 11.2  Benefits of Indenture.....................................47
    SECTION 11.3  Amendments Only With Consent of the Holders...............47
    SECTION 11.4  Governing Law.............................................48
    SECTION 11.5  Successors................................................48
    SECTION 11.6  Counterparts..............................................48


<PAGE>

                      PUERTO RICO STOCK PURCHASE AGREEMENT
                      ------------------------------------

     PUERTO RICO STOCK PURCHASE AGREEMENT, dated as of March 30, 1999, by and
among the investors referred to on Schedule I  (individually, a "Cash Equity
                                                                 -----------
Investor" and, collectively, the "Cash Equity Investors"), the individuals
- --------                          ---------------------
listed on Schedule II (individually, a "Management Stockholder" and, together,
                                        ----------------------
the "Management Stockholders"), Puerto Rico Acquisition Corp., a Delaware
     -----------------------
corporation ("Acquisition Corp.") and TeleCorp PCS, Inc., a Delaware corporation
              -----------------
(the "Company").
      -------

                                 W I T N E S S E T H :
                                 -------------------

          WHEREAS, the Cash Equity Investors and the Management Stockholders are
stockholders of the Company;

          WHEREAS, the Management Stockholders are also the sole stockholders of
Acquisition Corp.;

          WHEREAS, AT&T Wireless PCS, Inc., a Delaware corporation ("AT&T PCS"),
                                                                     --------
and Acquisition Corp. entered into a letter of intent, dated September, 1998,
setting forth the terms upon which Acquisition Corp. would acquire from AT&T PCS
a portion of the A Block PCS License for the San Juan MTA, including 20 MHz of
the 30 MHz of the PCS licenses owned by AT&T PCS covering such market, together
with certain other rights and assets;

          WHEREAS, contemporaneously with the closing hereunder, the Management
Stockholders will enter into a stock-for-stock exchange whereby the Management
Stockholders will transfer all of the stock of Acquisition Corp. to the
Company's direct wholly-owned subsidiary, TeleCorp Communications, Inc.
("Communications"), in exchange for shares of the Company's voting common stock
as set forth on Schedule III (b) (the "Stock Exchange"), thus causing
Acquisition Corp. to become a direct wholly-owned subsidiary of Communications
and facilitating the Company's obtaining the rights under the letter of intent
referenced in the preceding paragraph;

          WHEREAS, simultaneously herewith, the Company and AT&T PCS are
executing an Asset Purchase Agreement, dated of even date herewith (the

"Acquisition Agreement"), pursuant to which the Company and/or one or more of
 ---------------------
its direct or indirect wholly-owned Subsidiaries shall acquire from AT&T PCS
such portion of the A Block PCS License for the San Juan MTA, including 20 MHz
of the 30 MHz of the PCS licenses owned by AT&T PCS covering such market,
together with certain other rights and assets set forth in the Acquisition
Agreement (the "AT&T PCS License");
                ----------------

          WHEREAS, in connection with the consummation of the transactions
contemplated by the Acquisition Agreement, (a) each of the Cash Equity Investors
wishes to purchase additional securities of the Company in consideration of
contributions of cash to the capital of the Company, (b) the Company wishes to
accept such contributions and issue additional securities to each of the Cash
Equity Investors all on the terms and subject to the conditions herein set forth
and (c) the Company and the Cash Equity Investors wish to provide

<PAGE>

an opportunity for the Cash Equity Investors to purchase their pro rata share of
the Series E Notes.

          WHEREAS, the transactions contemplated hereby will be consummated
simultaneously with the consummation of the transactions contemplated by the
Acquisition Agreement; and

          NOW, THEREFORE, in consideration of the promises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the parties agree as follows:

                                   ARTICLE I

                                  DEFINITIONS

          For purposes of this Agreement:

          "Acquisition Corp." has the meaning set forth in the preamble.
           -----------------

          "Acquisition Agreement" has the meaning set forth in the recitals.
           ---------------------

          "Affiliate" means, with respect to any Person, any other Person that
           ---------
directly, or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with that Person.  For purposes of this
definition, "control" (including the terms "controlling" and "controlled") means
             -------                        -----------       ----------
the power to direct or cause the direction of the management and policies of a
Person, directly or indirectly, whether through the ownership of securities or
partnership or other ownership interests, by contract or otherwise.

          "Aggregate Commitment" means, with respect to each Cash Equity
           --------------------
Investor, the amount set forth opposite its name on Schedule III(a) under the
heading "Aggregate Commitment."

          "Agreement" means this Puerto Rico   Stock Purchase Agreement, as the
           ---------
same may be amended, modified or supplemented in accordance with the terms
hereof.

          "AT&T PCS" has the meaning set forth in the preamble.
           --------

          "AT&T PCS License" has the meaning set forth in the recitals.
           ----------------

          "Base Indenture" has the meaning set forth in Section 6.8.
           --------------

          "Business Day" means any day other than a Saturday, Sunday or a legal
           ------------
holiday in New York, New York or any other day on which commercial banks in New
York, New York are authorized by law or governmental decree to close.

                                      -2-
<PAGE>

          "Capital Stock" means any and all shares, interests, participations or
           -------------
other equivalents (however designated) of capital stock of a corporation, and
any and all equivalent ownership interests in a Person (other than a
corporation) and any and all warrants, rights or options to purchase or
subscribe for any of the foregoing or any warrants, rights or options to
purchase or subscribe for any such warrants, rights or options.

          "Cash Equity Investor" has the meaning set forth in the preamble.
           --------------------

          "Claim" has the meaning set forth in Section 8.5(a).
           -----

          "Class C Common Stock"  means the Class C Common Stock, par value $.01
           --------------------
per share, of the Company.

          "Class D Common Stock" means the Class D Common Stock, par value $.01
           --------------------
per share, of the Company.

          "Closing" has the meaning set forth in Section 3.1.
           -------

          "Closing Date" has the meaning set forth in Section 3.1.
           ------------

          "Common Stock" means, collectively, Voting Preference Stock,  the
           ------------
Tracked Common Stock, the Voting Common Stock and the Non-Voting Common Stock.

          "Communications" has the meaning set forth in the recitals.
           --------------

          "Company" has the meaning set forth in the preamble.
           -------

          "Contributions" means the Aggregate Commitments, the Initial Capital
           -------------
Contributions and the additional cash contributions in respect of Unfunded
Commitments, in each case, of the Cash Equity Investors.

          "Confidential Information" means any and all information regarding the
           ------------------------
business, finances, operations, products, services and customers of the Person
specified and its Affiliates, in written or oral form or in any other medium.

          "Consents" means all consents and approvals of Governmental
           --------
Authorities or other third parties necessary to authorize, approve or permit the
parties hereto to consummate the Transactions and for the Company to operate its
business after the Closing Date as currently contemplated.

          "Credit Agreement" means the agreement among the Company, the lenders
           ----------------
and the agents referred to therein, as of July 17, 1998, providing a credit
facility having aggregate commitments of $525 million, as the same may be
amended, modified or supplemented in accordance with the terms thereof.

                                      -3-
<PAGE>

          "Credit Documents" means the Credit Agreement and all agreements,
           ----------------
instruments and documents executed and delivered pursuant thereto, as the same
may from time to time be amended, modified or supplemented in accordance with
the terms thereof.

          "Excluded Stock" shall mean with respect to each Management
           --------------
Stockholder, the number of shares of Preferred Stock and Common Stock set forth
opposite his name on Schedule II; provided, however, that if a Management
                                  --------
Stockholder Transfers (as such term is defined in the Stockholders' Agreement)
any shares of  Preferred Stock and Common Stock (other than to satisfy his
indemnification obligations hereunder) the number of Excluded Shares held by
such Management Stockholder shall be reduced by the number of shares of Common
Stock so Transferred.

          "FCC" means the Federal Communications Commission or similar
           ---
regulatory authority established in replacement thereof.

          "FCC Law" means the Communications Act of 1934, as amended, including
           -------
as amended by the Telecommunications Act of 1996, and the rules, regulations and
policies promulgated thereunder.

          "Final Order" has the meaning set forth in Section 7.1(b).
           -----------

          "Financing" has the meaning set forth in the SBIC Regulations.
           ---------

          "Governmental Authority" means a Federal, state or local court,
           ----------------------
legislature, governmental agency (including, without limitation, the United
States Department of Justice), commission or regulatory or administrative
authority or instrumentality.

          "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements Act of
           -------
1976, as amended, and the rules and regulations promulgated thereunder.

          "Indemnified Party" has the meaning set forth in Section 8.5(a).
           -----------------

          "Indemnifying Party" has the meaning set forth in Section 8.5(a).
           ------------------

          "Initial Cash Contribution" means, with respect to each Cash Equity
           -------------------------
Investor, the amount set forth opposite its name on Schedule III(a) under the
heading "Initial Cash Contribution."

          "Joint Venture Notes" has the meaning set forth in the Acquisition
           -------------------
Agreement.

          "Law" means applicable common law and any statute, ordinance, code or
           ---
other law, rule, permit, permit condition, regulation, order, decree, technical
or other standard, requirement or procedure enacted, adopted, promulgated,
applied or followed by any Governmental Authority.

                                      -4-
<PAGE>

          "Lenders" has the meaning set forth in Section 10.5.
           -------

          "License" means a license, permit, certificate of authority, waiver,
           -------
approval, certificate of public convenience and necessity, registration or other
authorization, consent or clearance to construct or operate a facility,
including any emissions, discharges or releases therefrom, or to transact an
activity or business, to construct a tower or to use an asset or process, in
each case issued or granted by a Governmental Authority.

          "License Transfer" means the assignment of any License requiring the
           ----------------
Consent of the FCC or any equivalent state Governmental Authority.

          "Lien" means, with respect to any asset, any mortgage, lien, pledge,
           ----
charge, security interest, right of first refusal or right of others therein, or
encumbrance of any nature whatsoever in respect of such asset.

          "Losses" has the meaning set forth in Section 8.2.
           ------

          "Lucent Notes" has the meaning set forth in Section 6.8.
           ------------

          "Management Agreement" means the Management Agreement between the
           --------------------
Company and TeleCorp Management Corp., dated July 17, 1998, as the same may be
amended, modified or supplemented in accordance with the terms thereof.

          "Management Stockholders" has the meaning set forth in the preamble.
           -----------------------

          "Material Adverse Effect" means a material adverse effect on the
           -----------------------
business, financial condition, assets, liabilities or results of operations or
prospects of the Person specified.

          "New York Courts" has the meaning set forth in Section 10.6.
           ---------------

          "Non-Voting Common Stock" means the Company's Class B Non-Voting
           -----------------------
Common Stock, par value $.01 per share.

          "Opinion of Counsel" or "Opinion of Special FCC Counsel" means, with
           ------------------      ------------------------------
respect to any Person,  a legal opinion of such Person's counsel substantially
in the form and substance of the legal opinion rendered on behalf of such Person
in connection with the consummation on July 17, 1998 of the transactions
contemplated by the Securities Purchase Agreement.

          "Person" means an individual, corporation, partnership, limited
           ------
liability company, association, joint stock company, Governmental Authority,
business trust, unincorporated organization, or other legal entity.

          "Pledge Agreements" means the Pledge Agreements between the Company
           -----------------
and each Cash Equity Investor, in substantially the form of Exhibit A, to be
dated as of the Closing

                                      -5-
<PAGE>

Date, as the same may be amended, modified or supplemented in accordance with
the terms thereof.

          "Preferred Stock" means the shares of Series A Preferred Stock, Series
           ---------------
B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E
Preferred Stock, Series F Preferred Stock and Senior Common Stock.

          "Regulatory Problem" means, with respect to any SBIC Holder providing
           ------------------
Financing under this Agreement, any set of facts or circumstances wherein it has
been asserted by any governmental regulatory agency (or any SBIC Holder
reasonably believes in good faith that there is a substantial risk of such
assertion) that such SBIC Holder and its Affiliates are not entitled to hold, or
exercise any significant right with respect to, the Securities.

          "Related Agreements" means the Management Agreement and Stockholders'
           ------------------
Agreement.

          "Related Agreement Amendments" has the meaning set forth in Section
           ----------------------------
6.8.

          "Restated Certificate" means the Second Amended and Restated
           --------------------
Certificate of Incorporation of the Company, dated as of the  Closing Date.

          "SBA" has the meaning set forth in Section 6.5(b).
           ---

          "SBA Compliance Documents" has the meaning set forth in 7.4(g).
           ------------------------

          "SBIC" means a small business investment company licensed under the
           ----
SBIC Act.

          "SBIC Act" means the Small Business Investment Company Act of 1958, as
           --------
amended.

          "SBIC Holder" means each Cash Equity Investor that is an SBIC.
           -----------

          "SBIC Regulations" means the SBIC Act and the regulations issued
           ----------------
thereunder as set forth in 13 CFR 107 and 121, as amended.

          "Section 8.2 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.2.

          "Section 8.3 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.3.

          "Section 8.4 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.4.

          "Securities" means the shares of  Preferred Stock being issued
           ----------
hereunder, together with any shares of  Preferred Stock or Common Stock issued
upon conversion of or delivered in substitution or exchange for any of the
foregoing.

                                      -6-
<PAGE>

          "Securities Act" means the Securities Act of 1933, as amended.
           --------------

          "Securities Purchase Agreement" means the Securities Purchase
           -----------------------------
Agreement dated as of January 23, 1998, by and among the Company, AT&T PCS, the
Cash Equity Investors and the other parties named therein.

          "Senior Common Stock" means the Senior Common Stock, par value $.01
           -------------------
per share, of the Company.

          "Series A Preferred Stock" has the meaning set forth in Section 2.2.
           ------------------------

          "Series B Preferred Stock" means the Series B Preferred Stock, par
           ------------------------
value $.01 per share, of the Company.

          "Series C Preferred Stock" has the meaning set forth in Section 2.2.
           ------------------------

          "Series D Notes" has the meaning set forth in the Acquisition
           --------------
Agreement.

          "Series D Preferred Stock" has the meaning set forth in Section 2.2.
           ------------------------

          "Series E Notes" means Series E Senior Subordinated Notes
           --------------
substantially in the form attached hereto as Exhibit B issued by the Company
pursuant to an Indenture substantially in the form attached hereto as Exhibit C,
which Notes are pari passu with the Series D Notes and are convertible into
shares of Series C Preferred Stock and Voting Common Stock.

          "Series E Preferred Stock" has the meaning set forth in Section
           ------------------------
2.1(c).

          "Series F Preferred Stock" has the meaning set forth in Section 2.2.
           ------------------------

          "Stock Exchange" has the meaning set forth in the recitals.
           --------------

          "Stockholders' Agreement" means the Stockholders' Agreement, by and
           -----------------------
among the Company, AT&T PCS, the Cash Equity Investors, and the other parties
named therein, as stockholders, as the same may be amended, modified or
supplemented in accordance with the terms thereof.

          "Subsidiary" shall mean, with respect to any Person, a corporation or
           ----------
other entity of which 50% or more of the voting power or the voting equity
securities or equity interest is owned, directly or indirectly, by such Person.

          "Summary of Principal Terms" has the meaning set forth in Section
           --------------------------
10.15.

          "Tracked Common Stock" means, collectively, the Class C Common Stock
           --------------------
and the Class D Common Stock.

          "Transactions" means the transactions contemplated by this Agreement.
           ------------

                                      -7-
<PAGE>

          "Unfunded Commitment" has the meaning set forth in Section 2.1
           -------------------

          "Voting Common Stock" means the Class A Voting Common Stock, par value
           -------------------
$.01 per share, of the Company.

          "Voting Preference Stock" means the Voting Preference Stock, par value
           -----------------------
$.01 per share, of the Company.

          When a reference is made in this Agreement to an Article or a Section,
such reference shall be to an Article or a Section of this Agreement unless
otherwise indicated.  Unless the context otherwise requires, the terms defined
hereunder shall have the meanings therein specified for all purposes of this
Agreement, applicable to both the singular and plural forms of any of the terms
defined herein.  Whenever the words "include," "includes" or "including" are
used in this Agreement, they shall be deemed to be followed by the words
"without limitation."  The use of a gender herein shall be deemed to include the
neuter, masculine and feminine genders whenever necessary or appropriate.
Whenever the word "herein" or "hereof" is used in this Agreement, it shall be
deemed to refer to this Agreement and not to a particular Section of this
Agreement unless expressly stated otherwise.

                                  ARTICLE II

                        CONTRIBUTIONS; PURCHASE AND SALE
                        --------------------------------
                OF SECURITIES; CERTAIN RESTRICTIONS ON TRANSFER
                -----------------------------------------------

    2.1.  Cash Equity Investor and Management Stockholder Contributions.  (a)
          -------------------------------------------------------------
Upon the terms and subject to the conditions hereof and in reliance upon the
representations, warranties and agreements herein contained:  (i) effective upon
the Closing, each Cash Equity Investor hereby irrevocably commits, severally and
not jointly, to contribute to the capital of the Company an amount equal to its
Aggregate Commitment, and (ii) at the Closing, each Cash Equity Investor shall
contribute to the capital of the Company an amount equal to its Initial Cash
Contribution and the Company shall accept such capital contribution.  Each Cash
Equity Investor shall contribute to the capital of the Company an additional
amount equal to the excess of its Aggregate Commitment over its Initial Cash
Contribution in the amounts and on the dates specified on Schedule III(a) (or
such earlier dates as may be established in accordance with the terms of the
Stockholders' Agreement).

          The obligation of each Cash Equity Investor to make such additional
cash contributions in respect of its Aggregate Commitment in accordance with
this Section 2.1 is sometimes referred to herein as the "Unfunded Commitment."
                                                         -------------------
Nothing herein shall be construed to require any Cash Equity Investor to make
contributions in an aggregate amount in excess of its Aggregate Commitment or
later than the third anniversary of the Closing Date.

          (b) Each Cash Equity Investor acknowledges and agrees that, if the
Closing occurs, its obligation to make capital contributions to the Company
after the Closing Date in

                                      -8-
<PAGE>

respect of its Unfunded Commitment constitutes an
irrevocable and unconditional obligation, and shall not be subject to
counterclaim, set-off, deduction or defense, or to abatement, suspension,
deferment, diminution or reduction for any reason whatsoever.  By way of
amplification, and not in limitation of the foregoing, each Cash Equity Investor
further acknowledges and agrees to fulfill its obligations in respect of its
Unfunded Commitment regardless of any claims it may have against any other
Person (whether or not related to the Transactions) and regardless of the
existence or non-existence of any facts or circumstances (whether or not such
facts and circumstances existed on the date hereof or the Closing Date or were
then known by it).  Each Cash Equity Investor further agrees to execute and
deliver a Pledge Agreement pursuant to which each such Cash Equity Investor
agrees to pledge the securities acquired in accordance with Section 2.2,
together with the securities acquired pursuant to the Securities Purchase
Agreement, as security for its obligations to make capital contributions to the
Company in respect of its Unfunded Commitment and as security for its
obligations to make capital contributions to the Company in respect of its
Unfunded Commitment (as such term is defined in the Securities Purchase
Agreement).

          (c)  Upon the terms and subject to the conditions hereof and in
reliance upon the representations, warranties and agreements herein contained,
at the Closing, each Management Stockholder shall contribute to the capital of
the Company the amount set forth opposite his name on Schedule III(b) and the
Company shall accept such capital contribution in consideration of the shares of
the Company's Series E Preferred Stock, par value $.01 per share (the "Series E
                                                                       --------
Preferred Stock").
- ---------------

    2.2. Purchase and Sale of Securities at Closing.  Upon the terms and subject
         ------------------------------------------
to the conditions hereof and in reliance upon the representations, warranties
and agreements herein contained, at the Closing, in consideration of the
Transactions, the Company shall issue, sell and deliver the following
securities:

        (a) to the Cash Equity Investors, the number of shares set forth
     opposite its name on Schedule III of the following: (i) the Company's
     Series C Preferred Stock, par value $.01 per share, (the "Series C
     Preferred Stock"), the terms of which are set forth in the Restated
     Certificate, and (ii) Voting Common Stock; and

        (b) to the Management Stockholders, the number of shares set forth
     opposite his name on Schedule III(b) of the Company's Series E Preferred
     Stock, the terms of which are set forth in the Restated Certificate.

    2.3.  Management Stockholder Contribution. Upon the terms and subject to the
          -----------------------------------
conditions hereof and in reliance upon the representations, warranties and
agreements herein contained, at the Closing, the Management Stockholders shall
contribute to the capital of Communications all their right, title and interest
in the issued and outstanding capital stock of Acquisition Corp. in
consideration of the Company's Voting Common Stock set forth in Schedule III(b).

                                      -9-
<PAGE>

    2.4.  Management Benefit Plan. On or prior to the Closing, the Company shall
         -----------------------
amend its 1998 Restricted Stock Plan to include an additional 2,937.62 shares of
Voting Common Stock, 1,292.55 shares of which shall be designated as
Extraordinary Event Shares (as defined in such Plan), and an additional 1,580.19
shares of Series E Preferred Stock. The Company's Compensation Committee shall
grant restricted shares pursuant to such Plan to the Company's employees, other
than the Management Stockholders. The Company may utilize any unissued shares
under the Plan to fund an employee stock option plan for the general benefit of
the Company's employees, other than the Management Stockholders.

    2.5.  Restrictive Legends.  Each certificate representing Securities
          -------------------
(including Securities originally issued hereunder or delivered upon conversion
of the Preferred Stock or Common Stock, or delivered in substitution or exchange
for any of the foregoing) will bear a legend, in addition to any legends
required by the Stockholders' Agreement or otherwise required  by Law, reading
substantially as follows until such Securities have been sold pursuant to an
effective registration statement under the Securities Act, Rule 144 under the
Securities Act, or an opinion of counsel reasonably satisfactory in form and
substance to the Company and otherwise in full compliance with any other
applicable restrictions on transfer, including those contained in this Agreement
and the Stockholders' Agreement:

          "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE BEEN ACQUIRED FOR
     INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
     AS AMENDED (THE `ACT'), OR UNDER ANY STATE SECURITIES OR `BLUE SKY' LAWS.
     SAID SECURITIES MAY NOT BE SOLD, TRANSFERRED, ASSIGNED, PLEDGED,
     HYPOTHECATED OR OTHERWISE DISPOSED OF, UNLESS AND UNTIL REGISTERED UNDER
     THE ACT AND THE RULES AND REGULATIONS THEREUNDER AND ALL APPLICABLE STATE
     SECURITIES OR `BLUE SKY' LAWS OR EXEMPTED THEREFROM UNDER THE ACT AND ALL
     APPLICABLE STATE SECURITIES OR `BLUE SKY' LAWS."

    2.6.  Participation in Note Purchase.  In the event that AT&T PCS elects to
          ------------------------------
eliminate the Joint Venture Notes from the consideration under the Acquisition
Agreement and receive additional Series D Notes pursuant to the terms and
conditions of Section 2.2 of the Acquisition Agreement, then at any time up to
fifteen days prior to the later of the closing of the Acquisition Agreement or
May 15, 1999, one or more of the Cash Equity Investors may elect to fund
additional cash into the Company by purchasing their pro-rata share of the
Series E Notes based on their percentage ownership of the Company immediately
prior to such closing (such pro rata rights to be calculated on the basis that
AT&T PCS and its Affiliates and the Cash Equity Investors are the sole
beneficial owners of the Company's common equity and beneficially own the
percentages of the Company's common equity set forth on Schedule IV hereto) (the
"Purchase Right"); provided, however, that no Series E Notes will be issued
unless Series D Notes are then outstanding; and provided, further, that if any
Cash Equity Investor does not elect to purchase its pro rata share of the Series
E Notes, then any or all of the other Cash Equity

                                      -10-
<PAGE>

Investors shall have the right to purchase that percentage of the principal
amount of the Series E Notes as to which the Purchase Right shall have not been
exercised (an "Additional Purchase Right") equal to a fraction, the numerator of
which is the percentage of the Company's common equity beneficially owned by the
Cash Equity Investor (as set forth on Schedule IV hereto) so exercising such
Additional Purchase Right and the denominator of which is the percentage of the
Company's common equity beneficially owned by all Cash Equity Investors so
exercising such Additional Purchase Right and AT&T PCS and its Affiliates (in
each case as set forth on Schedule IV hereto). The foregoing procedure shall be
repeated until all Series E Notes as to which Cash Equity Investors shall have a
Purchase Right or an Additional Purchase Right shall have been so exercised by
such Cash Equity Investors. Any and all preemptive rights afforded by Section
7.2 of the Stockholders' Agreement to the Cash Equity Investors with regard to
the transactions set forth in the Acquisition Agreement are hereby waived by
them. In the event that the Cash Equity Investors elect to purchase Series E
Notes pursuant to this Section 2.6 after the closing of the Acquisition
Agreement, then the Company shall redeem a corresponding amount of Series D
Notes from AT&T PCS at par value, plus accrued interest. The Series E Notes
issued pursuant to this paragraph 2.6 shall be dated the date of the Series D
Notes, shall bear interest from such date, and shall be issued for a price equal
to the then principal amount, plus interest accrued from such date.

    2.7.  Use of Proceeds.  The Company shall use the net cash proceeds of its
          ---------------
sale of Securities hereunder solely for consummation of the transactions
contemplated by the Acquisition Agreement and to pay fees and expenses incurred
in connection with the Transactions.  Proceeds from the sale of Series E Notes
to Cash Equity Investors pursuant to Section 2.6 prior to the closing under the
Acquisition Agreement, if any, shall be paid to AT&T PCS as consideration under
the Acquisition Agreement.

                                  ARTICLE III

                                    CLOSING

    3.1. Time and Place of Closing. Upon the terms and subject to the conditions
         -------------------------
hereof, the closing of the Transactions (the "Closing") shall take place at the
offices of Mayer, Brown & Platt, 1675 Broadway, New York, New York, at 10:00
a.m. local time on the twelfth Business Day following the date of receipt of the
last Consent required by subsections (a) through (c) of Section 7.1, or at such
other place and/or time and/or on such other date as the parties may agree or as
may be necessary to permit the fulfillment or waiver of the conditions set forth
in Article VII (the "Closing Date"). The Closing shall be deemed to have
                     ------------
occurred as of 12:01 a.m. on the Closing Date.

    3.2.  Closing Actions and Deliveries.  Upon the terms and subject to the
          ------------------------------
satisfaction or waiver by the appropriate parties, if applicable, of the
conditions set forth in Article VII, to effect the purchase and sale of the
Securities and consummate the other Transactions, the parties shall on the
Closing Date take the following actions:

                                      -11-
<PAGE>

        (a)  Cash Equity Investor Contributions.  Each Cash Equity Investor
             ----------------------------------
shall deliver to the Company by wire transfer of immediately available funds to
the account designated by the Company on or prior to the Closing Date an
amount equal to its Initial Cash Contribution, as set forth on Schedule
III(a).

        (b)  Delivery of Securities.  The Company shall deliver to (i) each
             ----------------------
Cash Equity Investor, certificates, duly executed by authorized signatories of
the Company, representing the shares of Series C Preferred Stock and Voting
Common Stock to be issued to each of them in accordance with the terms of
Section 2.2(a) and (ii) each Management Stockholder certificates, duly executed
by authorized signatories of the Company, representing the shares of Series E
Preferred Stock and Voting Common Stock to be issued to each of them in
accordance with the terms of Sections 2.2(b) and 2.3.

        (c)  Delivery of Acquisition Corp.  Each Management Stockholder shall
             ----------------------------
execute and deliver to Communications one or more stock certificates, together
with stock powers duly executed in blank, representing all of the equity
interests in Acquisition Corp.

        (d)  Deliveries Under Acquisition Agreement.  The closing under the
             --------------------------------------
Acquisition Agreement shall occur prior to, or contemporaneously with, the
Closing.

        (e)  Other Deliveries.  The parties shall execute and deliver or
             ----------------
cause to be executed and delivered all other documents, instruments, opinions
and certificates contemplated by this Agreement to be delivered at the Closing
or necessary and appropriate in order to consummate the Transactions
contemplated to be consummated on the Closing Date.

    3.3.  Closing Costs; Taxes and Fees.  The Company shall pay or cause to be
          -----------------------------
paid at the Closing or, if due prior to the Closing or thereafter, promptly when
due, all transfer taxes (including sales taxes, gross receipts taxes, stamp
taxes, and other taxes) payable solely as a result of a transfer of the
Contributions pursuant to this Agreement, but excluding any federal, state,
local or other jurisdictional income taxes (or franchise, excise, gross receipts
or other taxes that are generally imposed on a party on a periodic basis as a
result of a party's status, presence, conduct of business, holding of assets,
income, revenues, activities or other items).

                                      -12-
<PAGE>

                                  ARTICLE IV

    REPRESENTATIONS AND WARRANTIES OF PURCHASERS AND MANAGEMENT STOCKHOLDERS

          Each of the Cash Equity Investors (as to itself), the Management
Stockholders (as to himself, and solely with respect to the representations
contained in Sections 4.1(b), 4.1(e), 4.1(f) , 4.7 and 4.8), represents and
warrants to the Company and each of the other parties as follows:

    4.1.  Organization, Power and Authority.

          (a)  Each Cash Equity Investor is a corporation, general
partnership or limited partnership, duly organized, validly existing and in good
standing under the Laws of its jurisdiction of organization and has the
requisite power and authority to own, lease and operate its properties and to
carry on its business as now being conducted.

          (b)  It has the requisite power and authority to execute, deliver
and perform this Agreement, each of the Related Agreements Amendments to which
it is a party and each other instrument, document, certificate and agreement
required or contemplated to be executed, delivered and performed by it hereunder
and thereunder to which it is or will be a party.

          (c)  It is duly qualified to do business in each jurisdiction
where the character of its properties owned or held under lease or the nature of
its activities makes such qualification necessary other than any such
jurisdiction in which the failure to be so qualified would not have a Material
Adverse Effect on it or materially adversely affect the Transactions or its
ability to perform its obligations under the Related Agreements.

          (d)  The execution and delivery of this Agreement by it and the
consummation of the Transactions by it, including, without limitation, the
execution and delivery of the Related Agreement Amendments to which it is a
party, have been duly and validly authorized by its Board of Directors (or
equivalent body) and no other proceedings on its part which have not been taken
(including, without limitation, approval of its stockholders, partners or
members) are necessary to authorize this Agreement or to consummate the
Transactions.

          (e)  This Agreement has been duly executed and delivered by it and
constitutes its valid and binding obligation, enforceable against it in
accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar Laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity. Each of the Related Agreement Amendments to which it is a
party shall be duly executed and delivered by it at (or prior to) the Closing
and, upon such execution and delivery, shall constitute its valid and binding
obligation, enforceable against it in accordance with its terms, except as such
enforceability may be limited by bankruptcy, insolvency,

                                      -13-
<PAGE>

moratorium or other similar laws affecting or relating to enforcement of
creditors' rights generally and may be subject to general principles of equity.

          (f)  As of the Closing Date, after giving effect to the
Transactions, it is not in breach of any obligation under this Agreement or any
of the Related Agreements.

    4.2.  Consents; No Conflicts.  Neither the execution, delivery and
          ----------------------
performance by it of this Agreement or the Related Agreement Amendments to which
it is a party nor the consummation of the Transactions will (a) conflict with,
or result in a breach or violation of, any provision of its organizational
documents; (b) subject to obtaining the Consents set forth on Schedule 4.2,
constitute, with or without the giving of notice or passage of time or both, a
breach, violation or default, create a Lien, or give rise to any right of
termination, modification, cancellation, prepayment or acceleration, under (i)
any Law or License or (ii) any note, bond, mortgage, indenture, lease, agreement
or other instrument, in each case which is applicable to or binding upon it or
any of its assets; or (c) require any Consent, other than those set forth on
Schedule 4.2 or the approval of its board of directors, general partner,
stockholders or similar constituent bodies, as the case may be (which approvals
have been obtained), except in each case, where such breach, violation, default,
Lien, right, or the failure to obtain or give such Consent would not have a
Material Adverse Effect on it or materially adversely affect the Transactions or
its ability to perform its obligations under the Related Agreements and the
Related Agreement Amendments. To its knowledge, there is no fact relating to it
or its Affiliates that would be reasonably expected to prevent it from
consummating the Transactions or performing its obligations under the Related
Agreements and the Related Agreement Amendments or disqualify the Company from
obtaining the Consents (including without limitation, FCC Consent) required in
order to consummate the transfer of the PCS License for the San Juan MTA to the
Company pursuant to the Acquisition Agreement.

    4.3.  Litigation.  There is no action, proceeding or investigation
          ----------
pending or, to its knowledge, threatened against it or any of its properties or
assets that would be reasonably expected to have an adverse effect on its
ability to consummate the Transactions to which it is a party or to fulfill its
obligations under this Agreement or any of the Related Agreements to which it is
a party, or which seeks to prevent or challenge the Transactions.

    4.4.  FCC Compliance.  It complies with all eligibility rules issued by the
          --------------
FCC to hold broadband PCS Licenses, including without limitation, FCC rules on
foreign ownership.  Set forth opposite its name on Schedule 4.4 are all
"attributable" interests (within the meaning of Section 20.6 of the FCC's Rules)
that it holds in CMRS licenses that overlap the territory covered by the AT&T
PCS License.

    4.5.  Brokers.  It has not employed any broker, finder or investment
          -------
banker or incurred any liability for any brokerage fees, commissions or finder's
fees in connection with the Transactions.

                                      -14-
<PAGE>

    4.6.  Capital Commitment.  Each Cash Equity Investor has, and will have
          ------------------
on the Closing Date and on any subsequent date on which it is obligated to make
a capital contribution, cash available to it in an amount sufficient to make its
respective Contributions in accordance with the terms of Section 2.1.

    4.7.  No Distribution.  It is acquiring the Securities to be acquired by it
          ---------------
hereunder for the purpose of investment and not with a view to or for sale in
connection with any distribution thereof (other than in compliance with the
Stockholders' Agreement and the Securities Act and all applicable state
securities laws).

    4.8.  Investor Acknowledgments.  (a)  It is an "accredited investor" as
          ------------------------
defined in Regulation D of the Securities Act.  Its representatives have been
provided an opportunity to ask questions of, and have received answers thereto
from, the Company and its representatives regarding the terms and conditions of
its purchase of Securities, and the Company and its proposed business generally,
and have obtained all additional information requested by it to verify the
accuracy of all information furnished to it in connection with such purchase.

          (b)  It has such knowledge and experience in financial and business
affairs that it is capable of evaluating the merits and risks of purchasing the
Securities it is purchasing hereunder.

          (c)  It is not relying on and acknowledges that no representation
is being made by any other Cash Equity Investor, the Company or any of its
officers, employees, Affiliates, agents or representatives, except for
representations and warranties expressly set forth in this Agreement, and, in
particular, it is not relying on, and acknowledges that no representation is
being made in respect of, (x) any projections, estimates or budgets delivered to
or made available to them of future revenues, expenses or expenditures, or
future results of operations and (y) any other information or documents
delivered or made available to it or its representatives, except for
representations and warranties expressly set forth in this Agreement, the
Related Agreements and the Related Agreement Amendments and such information and
documents obtained by it as a stockholder of the Company and through its
representatives who serve as members of the Company's board of directors, as the
case may be.

          (d)  In deciding to invest in the Company, it has relied
exclusively on the representations and warranties expressly set forth in this
Agreement, and the investigations made by itself and its representatives and its
and such representatives' knowledge of the industry in which the Company
proposes to operate. Based solely on such representations and warranties and
such investigations and knowledge and such information obtained by him or it by
virtue of his or its status as a stockholder of the Company, and through its
representatives who serve as members of the Company's board of directors, as the
case may be, it has determined that the Securities it is acquiring are a
suitable investment for it.

                                      -15-
<PAGE>

                                   ARTICLE V

                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY
                             AND ACQUISITION CORP.

          The Company represents and warrants severally (except that it is not
making the representation and warranty set forth in Section 5.6(c)) as to the
Company and its Subsidiaries, and Acquisition Corp. represents and warrants
severally (except that it is not making the representations and warranties set
forth in Sections 5.4, 5.6(a), (b), 5.7, 5.8, 5.9 and 5.10) to the Cash Equity
Investors as follows:

    5.1.  Organization, Power and Authority.  (a)  Each of the Company and
          ---------------------------------
each of its Subsidiaries that is a corporation, and Acquisition Corp. is a
corporation duly organized, validly existing and in good standing under the laws
of the jurisdiction of its incorporation and has the requisite corporate power
and authority to own, lease and operate its properties and to carry on its
business as now being conducted and as proposed to be conducted. Each of the
Company's Subsidiaries that is a limited liability company or a limited
partnership is a limited liability company or a limited partnership, as the case
may be, duly formed, validly existing and in good standing under the laws of the
jurisdiction of formation and has the requisite limited liability company or a
limited partnership, as the case may be, power and authority to own, lease and
operate its properties and to carry on its business as now being conducted and
as proposed to be conducted.

          (b)  It has the requisite power, authority and/or legal capacity to
execute, deliver and perform this Agreement, each of the Related Agreement
Amendments to which it is a party and each other instrument, document,
certificate and agreement required or contemplated to be executed, delivered and
performed by it hereunder and thereunder to which it is or will be a party.

          (c)  Each of the Company and each of its Subsidiaries and
Acquisition Corp. is duly qualified to do business in each jurisdiction where
the character of its properties owned or held under lease or the nature of its
activities makes such qualification necessary other than any such jurisdiction
in which the failure to be so qualified would not have a Material Adverse Effect
on it or materially adversely affect the Transactions or its ability to perform
its obligations under the Related Agreements.

          (d)  The execution and delivery of this Agreement and the
consummation of the Transactions by it, including the execution and delivery of
the Related Agreement Amendments to which it is a party, have been duly and
validly authorized by its Board of Directors and shareholders and, except for
the filing of an amendment to the Company's Restated Certificate with the office
of the Secretary of State of Delaware, no other proceedings which have not been
taken are necessary to authorize this Agreement or to consummate the
Transactions.

                                      -16-
<PAGE>

          (e)  This Agreement has been duly executed and delivered by it and
constitutes the valid and binding obligation of it, enforceable against it in
accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar Laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity. Each of the Related Agreement Amendments to which it is a
party shall be duly executed and delivered by it at (or prior to) the Closing
and, upon such execution and delivery, shall constitute the valid and binding
obligation of it, enforceable against it in accordance with its terms, except as
such enforceability may be limited by bankruptcy, insolvency, moratorium or
other similar laws affecting or relating to enforcement of creditors' rights
generally and may be subject to general principles of equity.

          (f)  As of the Closing, after giving effect to the Transactions, it
is not in breach of any obligation under this Agreement, any Related Agreement
or any of the Credit Documents.

    5.2.  Consents; No Conflicts.  Neither the execution, delivery and
          ----------------------
performance of this Agreement and the Related Agreement Amendments to which it
is a party nor the consummation of the Transactions will (a) conflict with, or
result in a breach or violation of, any provision of its organizational
documents; (b) subject to obtaining the Consents set forth on Schedule 5.2,
constitute, with or without the giving of notice or passage of time or both, a
breach, violation or default, create a Lien, or give rise to any right of
termination, modification, cancellation, prepayment or acceleration, under (i)
any Law or License, or (ii) any note, bond, mortgage, indenture, lease,
agreement or other instrument, in each case which is applicable to or binding
upon it or any of its assets; or (c) require any Consent, other than those set
forth on Schedule 5.2 or the approval of its Board of Directors or its
stockholders (which approval has been obtained), except in each case where such
breach, violation, default, Lien, right, or the failure to obtain or give such
Consent would not have a Material Adverse Effect on it or materially adversely
affect the Transactions, its ability to perform its obligations under the
Related Agreements and the Related Agreement Amendments or the operation of its
business after the Closing Date. To its knowledge, there is no fact relating to
it or its Affiliates that would be reasonably expected to prevent it from
consummating the Transactions or performing its obligations under this
Agreement, the Related Agreements and the Related Agreement Amendments or
disqualify it from obtaining the Consents (including FCC Consent) required in
order to consummate the transfer of the PCS License for the San Juan MTA to the
Company pursuant to the Acquisition Agreement.

    5.3.  Litigation.  There is no action, proceeding or investigation pending
          ----------
or, to its knowledge, threatened against it or any of its properties or assets
that would have an adverse effect on its ability to consummate the Transactions
to which it is a party or to fulfill its obligations under this Agreement or any
of the Related Agreements to which it is a party, or to operate its business
after the Closing Date, or which seeks to prevent or challenge the Transactions.
There is no judgment, decree, injunction, rule or order outstanding against it
which would limit in any material respect its ability to operate its business in
the manner currently contemplated.

                                      -17-
<PAGE>

    5.4.  FCC Compliance. The Company complies, and after giving effect to the
          --------------
Transactions will comply, with all eligibility rules issued by the FCC to hold
broadband PCS Licenses, including FCC rules on foreign ownership and the CMRS
spectrum cap.

    5.5.  Brokers. It has not employed any broker, finder or investment banker
          -------
or incurred any liability for any brokerage fees, commissions or finder's fees
in connection with the Transactions, except that the Company engaged Chase
Securities Inc., whose fee of $2 million will be paid by the Company at the
Closing.

    5.6.  Capitalization.  (a)  As of the date hereof, the authorized capital
          --------------
stock of the Company consists of 700,000 shares of Voting Common Stock, 700,000
shares of Non-Voting Common Stock, ten shares of Voting Preference Stock, 1,000
shares of Class C Common Stock, 3,000 shares of Class D Common Stock, 70,000
shares of Series A Preferred Stock, 140,000 shares of Series B Preferred Stock,
140,000 shares of Series C Preferred Stock, 35,000 shares of Series D Preferred
Stock, 20,000 shares of Series E Preferred Stock, 35,000 shares of Series F
Preferred Stock and 70,000 shares of Senior Common Stock. As of the Closing
Date, after giving effect to the filing of the Restated Certificate and the
Transactions there will be issued and outstanding the shares of Preferred Stock
and Common Stock set forth on Schedule IV. The record and beneficial owners of
such outstanding shares of Common Stock and Preferred Stock, as of the Closing
Date, after giving effect to the Transactions, are set forth on Schedule IV.

          (b)  Except as set forth on Schedule 5.6, on the Closing Date,
after giving effect to the Transactions, there will not be any existing options,
warrants, calls, subscriptions, or other rights, or other agreements or
commitments, obligating the Company to issue, transfer or sell any shares of
capital stock of the Company.

          (c)  As of the date hereof, the authorized capital stock of
Acquisition Corp. consists of 15,000 shares of Common Stock, of which 1,000
shares are issued and outstanding to, and beneficially owned by, the Management
Stockholders. There are no existing options, warrants, calls, subscriptions, or
other rights or other agreements or commitments, obligating Acquisition Corp. to
issue, transfer or sell any shares of its capital stock.

    5.7.  Shares.  The shares of  Preferred Stock and Common Stock being
          ------
issued to the Cash Equity Investors hereunder, when issued and paid for pursuant
to the terms of this Agreement and after giving effect to the filing of the
Restated Certificate, will be duly authorized, validly issued, fully paid and
non-assessable, and will be free of any Liens caused or created by the Company,
except as set forth in the Stockholders' Agreement and the Restated Certificate.
The shares of Common Stock or Preferred Stock, as the case may be, issued upon
conversion of the Preferred Stock and the Common Stock issued on the Closing
Date, or upon conversion thereof after the Closing Date, when issued pursuant to
the terms thereof, will be validly issued, fully paid and non-assessable, and
will be free of any Liens caused or created by the Company, except as set forth
in the Stockholders' Agreement and the Restated Certificate.

                                      -18-
<PAGE>

    5.8.  Offering of Securities.  (a)  None of the Company or any Person acting
          ----------------------
on its behalf has offered the Securities or any similar equity securities of the
Company for sale to, or solicited any offers to buy Securities or any similar
equity securities of the Company from, any Person, other than the Cash Equity
Investors and a limited number of other "accredited investors" (as defined in
Rule 501(a) under the Securities Act).

          (b)  None of the Company or any Person acting on its behalf will,
directly or indirectly, take any action which might subject the offering,
issuance or sale of the Securities to the registration and prospectus delivery
requirements of Section 5 of the Securities Act.

          (c)  Assuming the accuracy of the representations and warranties of
the Cash Equity Investors contained in Section 4.8, each of the offering and
sale of Securities under this Agreement to the Cash Equity Investors complies
with all applicable requirements of Federal and state securities laws.

    5.9.  Subsidiaries.  The Company owns directly or indirectly all of the
          ------------
outstanding shares of Capital Stock of each of its Subsidiaries, free and clear
of any Liens, except Liens granted to the lenders pursuant to the Credit
Documents.  Set forth on Schedule 5.9 is a complete list of its direct and
indirect Subsidiaries indicating the jurisdictions in which each such Subsidiary
is organized or qualified to conduct business.

    5.10.  Small Business Matters.  Neither the Company nor any Subsidiary: (i)
           ----------------------
presently engages in, and none of them shall hereafter engage in, any
activities, or (ii) shall use directly or indirectly the proceeds from the sale
of the Securities for any purpose, which, in either case, a SBIC is prohibited
from engaging in or providing funds for by the SBIC Act and the regulations
thereunder (including Title 13, Code of Federal Regulations, Section 107.720).

                                  ARTICLE VI

                                   COVENANTS

    6.1.  Consummation of Transactions.  Each party shall use all commercially
          ----------------------------
reasonable efforts to take, or cause to be taken, all actions, and to do, or
cause to be done, all things necessary, proper or advisable and consistent with
applicable law to carry out all of their respective obligations under this
Agreement and the Related Agreements and to consummate the Transactions, which
efforts shall include, without limitation, the following:

          (a)  The parties shall use all commercially reasonable efforts to
cause the Closing to occur and the Transactions to be consummated in accordance
with the terms hereof, and, without limiting the generality of the foregoing, to
obtain all necessary Consents including the approval of this Agreement and the
Transactions by all Governmental Authorities and agencies, including the FCC
delivery and performance of this Agreement and the Related Agreements or the
consummation of the Transactions, and to make all filings with and to give all
notices to third

                                      -19-
<PAGE>

parties which may be necessary or reasonably required in order for the parties
to consummate the Transactions.

          (b)  Each party shall furnish to the other parties all information
concerning such party and its Affiliates reasonably required for inclusion in
any application or filing to be made by the Company or any other party in
connection with the Transactions or otherwise to determine compliance with
applicable FCC Law.

          (c)  Upon the request of any other party, each party shall forthwith
execute and deliver, or cause to be executed and delivered, such further
instruments of assignment, transfer, conveyance, endorsement, direction or
authorization and other documents as may reasonably be requested by such party
in order to effectuate the purposes of this Agreement and the Related
Agreements.

    6.2.  Use of Proceeds.  The Company shall use the proceeds of the sale of
          ---------------
Securities only for the purposes described in Section 2.7.

    6.3.  SBIC Regulatory Provisions.  (a)  The Company shall notify each SBIC
          --------------------------
Holder as soon as practicable (and, in any event, not later than 15 days) prior
to taking any action after which the number of record holders of the Company's
voting stock would be increased from fewer than 50 to 50 or more, and the
Company shall notify each SBIC Holder of any other action or occurrence after
which the number of record holders of the Company's voting stock was increased
(or would increase) from fewer than 50 to 50 or more, as soon as practicable
after the Company becomes aware that such other action or occurrence has
occurred or is proposed to occur.

          (b)  Within 75 days after the Closing, the Company shall deliver to
each SBIC Holder a written statement certified by the Company's president or
chief financial officer describing in reasonable detail the use of the proceeds
of the sale of Securities hereunder by the Company and its Subsidiaries. In
addition to any other rights granted hereunder, the Company shall grant each
SBIC Holder and the United States Small Business Administration (the "SBA")
access to the Company's records for the purpose of verifying the use of such
proceeds to the extent required pursuant to SBIC Regulations.

          (c)  Promptly after the end of each fiscal year (but in any event
prior to February 28 of each year), the Company shall deliver to each SBIC
Holder a written assessment of the economic impact of each SBIC Holder's
investment in the Company, specifying the full-time equivalent jobs created or
retained in connection with the investment, the impact of the investment on the
revenues and profits of the business and on taxes paid by the business and its
employees.

    6.4.  Regulatory Compliance Cooperation.  In the event that any SBIC Holder
          ---------------------------------
reasonably determines that it has a Regulatory Problem, to the extent reasonably
necessary, such SBIC Holder shall have the right to transfer its Securities (and
any shares of Common Stock issued

                                      -20-
<PAGE>

upon conversion thereof) to another Person without regard to any restrictions on
transfer set forth in this Agreement or in Section 4.1(c) of the Stockholders'
Agreement and without complying with the provisions of Section 4.3 of the
Stockholders' Agreement, but subject to the other provisions of the
Stockholders' Agreement and federal and state securities law restrictions, and
the Company shall take all such actions as are reasonably requested by such SBIC
Holder in order to (i) effectuate and facilitate such transfer by such SBIC
Holder of any Securities of the Company then held by such SBIC Holder to such
Person, (ii) permit such SBIC Holder (or any of its Affiliates) to exchange all
or any portion of voting Securities then held by it on a share-for-share basis
for shares of a class of non-voting Securities of the Company, which non-voting
Securities shall be identical in all respects to such voting Securities, except
that such non-voting Securities (or Common Stock, as applicable) shall be non-
voting and shall be convertible into voting Securities (or Common Stock, as
applicable) on such terms as are requested by such SBIC Holder in light of
regulatory considerations then prevailing, (iii) continue and preserve the
respective allocation of the voting interests with respect to the Company
arising out of the SBIC Holder's ownership of voting Securities and/or provided
for in the Stockholders' Agreement before the transfers and amendments referred
to in this Section (including entering into such additional agreements as are
reasonably requested by such SBIC Holder to permit any Person(s) designated by
such SBIC Holder) to exercise any voting power which is relinquished by such
SBIC Holder and (iv) amend this Agreement, the Restated Certificate, and any
other related documents, agreements or instruments to effectuate and reflect the
foregoing. The parties to this Agreement agree to vote their Securities in favor
of such amendments and actions.

    6.5.  Related Agreement Amendments; Amendments to Restated Certificate.
          ----------------------------------------------------------------
Certain of the parties hereto (and/or certain of their respective Affiliates)
are (or, with respect to the Resale Agreement, will be) parties to the Related
Agreements.  It is the intention of the parties hereto that, upon consummation
of each of the Transactions, each Related Agreement shall be amended and/or
restated as necessary (the "Related Agreement Amendments") to give effect to,
                            ----------------------------
among other things, (a) the AT&T PCS License acquired by the Company upon the
closing of the Acquisition Agreement; (b) the Securities issued to the Cash
Equity Investors at the Closing, and (c) the execution of the agreements
contemplated by the Acquisition Agreement it being agreed that except as
otherwise set forth in the Related Agreement Amendments, the agreements
contemplated by the Acquisition Agreement, the rights and obligations of the
parties under the Related Agreements pertaining to the Licenses and securities
thereunder shall pertain also to the Licenses and Securities hereunder.  The
Related Agreement Amendments shall include, without limitation, amendments to
the term "Territory" as used in the Stockholders' Agreement, the San Juan MTA
and the Minimum Build-out Plan attached as Schedule V to the Stockholders'
Agreement shall be amended as more fully described in the Acquisition Agreement
to include the minimum build-out requirements for the San Juan MTA, it being
further understood that the parties shall make such other conforming changes to
the terms of such agreements as shall be necessary to reflect the acquisition by
the Company of the Purchased Assets (as defined in the Acquisition Agreement)
and to otherwise extend the benefits of such agreements to the Purchased Assets.
It is also the intention of the parties hereto that the Restated Certificate
shall be amended as necessary (e.g., to increase the number of authorized shares
of Capital Stock) to

                                      -21-
<PAGE>

give effect to, among other things, the Securities issued at the Closing. The
parties agree to use their respective best efforts to effectuate any and all
such amendments at any such Closing.

    6.6.  Offering of Securities. None of the Company or any Person acting
          ----------------------
on its behalf will, directly or indirectly, take any action which might subject
the offering, license or sale of the Securities to the registration and
prospectus delivery requirements of Section 5 of the Securities Act.

    6.7.  Waiver of Preemptive Rights.  With respect to the Transactions and the
          ---------------------------
issuance of the shares of Series A Preferred Stock, Series C Preferred Stock,
Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock
hereunder, each of the Cash Equity Investors hereby waives (a) the notice
requirements set forth in Section 7.2(b) of the Stockholders' Agreement and (b)
its preemptive rights that are afforded such party in Section 7.2 of the
Stockholders' Agreement.

    6.8.  Base Indenture.  The base indenture (the "Base Indenture") pursuant to
          --------------
which the Company shall issue any Series D Notes, any Series E Notes and any
series of notes in favor of Lucent Technologies, Inc. (the "Lucent Notes") shall
be substantially in the form of Exhibit D hereto.

    6.9.  Supplemental Indentures.  The supplemental indentures to the Base
          -----------------------
Indenture pursuant to which the Company shall issue any Series D Notes and any
Lucent Notes shall be substantially in the form of Exhibit E and Exhibit F,
respectively.

                                  ARTICLE VII

                               CLOSING CONDITIONS

    7.1.  Conditions to Obligations of All Parties.  The obligation of each of
          ----------------------------------------
the parties to consummate the Transactions contemplated to occur at the Closing
shall be conditioned on the following, unless waived by each of the parties at
or prior to Closing:

          (a)  Any applicable waiting period under the HSR Act shall have
expired or been terminated.

          (b)  The Consent of the FCC to the transfer of the PCS License for
the San Juan MTA to the Company pursuant to the Acquisition Agreement shall have
been obtained pursuant to a Final Order, free of any conditions materially
adverse to the Company or any of the Cash Equity Investors other than those
applicable to the PCS or wireless communications services generally. For the
purposes of this paragraph, "Final Order" means an action or decision
                             -----------
that has been granted by the FCC as to which (i) no request for a stay or
similar request is pending, no stay is in effect, the action or decision has not
been vacated, reversed, set aside, annulled or suspended and any deadline for
filing such request that may be designated by statute or regulation has passed,
(ii) no petition for rehearing or reconsideration or application for review is

                                      -22-
<PAGE>

pending and the time for the filing of any such petition or application has
passed, (iii) the FCC does not have the action or decision under reconsideration
on its own motion and the time within which it may effect such reconsideration
has passed and (iv) no appeal is pending including other administrative or
judicial review, or in effect and any deadline for filing any such appeal that
may be designated by statute or rule has passed.

          (c)  All Consents by any Governmental Authority (other than the
Consents referred to in paragraphs (a) and (b) above) required to permit the
consummation of the Transactions, the failure to obtain or make which would be
reasonably expected to have a Material Adverse Effect on the Company or any of
the Cash Equity Investors or to materially adversely affect the Transactions or
its ability to perform its obligations under the Related Agreements shall have
been obtained or made.

          (d)  No preliminary or permanent injunction or other order, decree
or ruling issued by a Governmental Authority, nor any statute, rule, regulation
or executive order promulgated or enacted by any Governmental Authority, shall
be in effect that would (i) impose material limitations on the ability of any
party to consummate the Transactions or prohibit such consummation, or (ii)
impair in any material respect the operation of the Company.

          (e)  The closing under the Acquisition Agreement shall occur prior
to, or contemporaneously with, the Closing.

          (f)  The Stock Exchange shall occur contemporaneously with the
Closing.

          (g)  The Restated Certificate shall have been filed with the Delaware
Secretary of State.

          (h)  Each Cash Equity Investor shall have executed and delivered to
the Company a Pledge Agreement.

          (i)  Each Stockholder (as such term is defined in the Stockholders'
Agreement) who is not a Cash Equity Investor hereunder shall have delivered a
waiver of the pre-emptive rights afforded to such Stockholder pursuant to
Section 7.2(b) of the Stockholders' Agreement, in form and substance
substantially similar to Section 6.10.

    7.2.  Conditions to Obligations of the Company.  The obligation of the
          ----------------------------------------
Company to consummate the Transactions contemplated to occur at the Closing
shall be further conditioned upon the satisfaction or fulfillment, at or prior
to the Closing, of the following conditions by each of the other parties, unless
waived by the Company at or prior to the Closing:

          (a)  The representations and warranties of each of the Cash Equity
Investors contained herein shall be true and correct in all material respects
(except for representations and warranties that are qualified as to materiality,
which shall be true and correct), in each case when made and at and as of the
Closing (except for representations and warranties made as of a specified date,
which shall be true and correct as of such date) with the same force and effect
as

                                      -23-
<PAGE>

though made at and as of such time, except for inaccuracies in respect of the
representations and warranties set forth in Section 4.3, (disregarding any
qualifications as to materiality contained therein) that in the aggregate would
not be reasonably expected to have a Material Adverse Effect on the Company or
to materially adversely affect the Transactions.

          (b)  Each Cash Equity Investor shall have performed in all material
respects all agreements contained herein or required to be performed by it at or
before the Closing.

          (c)  An officer of each of the Cash Equity Investors shall have
delivered to the Company a certificate, dated the Closing Date, certifying as to
the fulfillment of the conditions set forth in paragraphs (a) and (b) above as
to the party delivering such certificate.

          (d)  The Company shall have been furnished with an Opinion of Counsel
to each Cash Equity Investor each dated the Closing Date.

          (e)  The Company shall have received any consent of the lenders that
may be required pursuant to the terms of the Credit Agreement.

          (f)  Each of the Related Agreement Amendments shall have been executed
and delivered by the parties thereto (other than the Company) and shall be in
full force and effect.

          (g)  All corporate and other proceedings of each of the Cash Equity
Investors in connection with the Transactions, and all documents and instruments
incident thereto, shall be reasonably satisfactory in form and substance to the
Company, and each of the Cash Equity Investors shall have delivered to the
Company such receipts, documents, instruments and certificates, in form and
substance reasonably satisfactory to the Company which the Company shall have
reasonably requested in order to consummate the Transactions.

    7.3.  Conditions to the Obligations of the Cash Equity Investors.  The
          ----------------------------------------------------------
obligation of each Cash Equity Investor to consummate the Transactions
contemplated to occur at the Closing shall be further conditioned upon the
satisfaction or fulfillment, at or prior to the Closing, of the following
conditions, unless waived by each such Cash Equity Investor at or prior to the
Closing:

          (a)  The representations and warranties of each of the Company,
Acquisition Corp. each other Cash Equity Investor and each Management
Stockholder contained herein shall be true and correct in all material respects
(except for representations and warranties that are qualified as to materiality,
which shall be true and correct), in each case when made and at and as of the
Closing (except for representations and warranties made as of a specified date,
which shall be true and correct as of such date) with the same force and effect
as though made at and as of such time, except for inaccuracies in respect of the
representations and warranties set forth in Section 4.3 and the first sentence
of Section 5.3, (disregarding any qualifications as to materiality contained
therein) that in the aggregate would not be reasonably expected to have a
Material Adverse Effect on the Company or to materially adversely affect the
Transactions.

                                      -24-
<PAGE>

          (b)  Each of the Company, Acquisition Corp., each other Cash Equity
Investor and each Management Stockholder shall have performed in all material
respects all agreements contained herein or required to be performed by it at or
before the Closing.

          (c)  Each Management Stockholder, an officer of each of the Company,
Acquisition Corp., and each other Cash Equity Investor shall have delivered to
such Cash Equity Investor a certificate, dated the Closing Date, certifying as
to the fulfillment of the conditions set forth in paragraphs (a) and (b) above
as to the party delivering such certificate.

          (d)  Such Cash Equity Investor shall have been furnished with an
Opinion of Counsel, to each of each other Cash Equity Investor and the Company
each dated the Closing Date.

          (e)  Each of the Related Agreement Amendments shall have been executed
and delivered by the parties thereto (other than the Cash Equity Investors) and
shall be in full force and effect.

          (f) The Base Indenture pursuant to which the Company shall issue any
Series D Notes, any Series E Notes and any Lucent Notes shall be substantially
in the form of Exhibit D.

          (g) The supplement indentures to the Base Indenture pursuant to which
the Company shall issue any Series D Notes, and any Lucent Notes shall be
substantially in the form of Exhibit E and F, respectively.

          (h)  All corporate and other proceedings of each other Cash Equity
Investor, the Company and Acquisition Corp. in connection with the Transactions,
and all documents and instruments incident thereto, shall be reasonably
satisfactory in form and substance to such Cash Equity Investor, and each other
Cash Equity Investor, the Company and Acquisition Corp. shall have delivered to
such Cash Equity Investor all such receipts, documents, instruments and
certificates, in form and substance reasonably satisfactory to such Cash Equity
Investor, which such Cash Equity Investor shall have reasonably requested in
order to consummate the Transactions.

          (i) On the Closing Date, counsel to each Cash Equity Investor shall
have received the legal fees and expenses required to be paid or reimbursed by
the Company as provided in Section 10.4 for statements rendered on or prior to
the Closing Date.

          (j)  For each SBIC Holder, the Company shall have prepared the Size
Status Declaration on Form 480, the Assurance of Compliance for
Nondiscrimination on Form 652 and the Portfolio Financing Report on Form 1031
(Parts A and B) (collectively, the "SBA Compliance Documents"), the Company
                                    ------------------------
shall have duly executed and delivered the Forms 480 and 652 to each SBIC
Holder, and all of the information set forth in the SBA Compliance Documents
shall be true and correct in all respects. The Company shall have delivered a
list, after giving effect to the transactions contemplated by this Agreement,
of: (a) the name of each of the Company's directors, (b) the name and title of
each of the Company's officers and (c) the

                                      -25-
<PAGE>

name of each of the Company's stockholders and the number and class of shares
held by each stockholder.

                                 ARTICLE VIII

                          SURVIVAL AND INDEMNIFICATION

    8.1.  Survival.  Except for the representations and warranties contained in
          --------
Sections 4.1(a), (b), (d) and (e), and 5.1(a), (b), (d) and (e) (which shall
survive the Closing, without regard to any investigation made by any of the
parties hereto, until the expiration of the applicable statute of limitations
relating thereto), the representations and warranties made in this Agreement
shall survive the Closing without regard to any investigation made by any of the
parties hereto until the second anniversary thereof and shall thereupon expire
together with any right to indemnification in respect thereof (except to the
extent a written notice asserting a claim for breach of any such representation
or warranty and describing such claim in reasonable detail shall have been given
prior to the expiration of the applicable survival period to the party which
made such representation or warranty). The covenants and agreements contained
herein to be performed or complied with prior to the Closing shall expire at the
Closing. The covenants and agreements contained in this Agreement to be
performed or complied with after the Closing shall survive the Closing; provided
that the right to indemnification pursuant to this Article VIII in respect of a
breach of a representation or warranty shall expire upon the application of the
applicable survival period of the Closing (except to the extent written notice
asserting a claim thereunder and describing such claim in reasonable detail
shall have been given prior to such expiration to the party from whom such
indemnification is sought). After the Closing, the sole and exclusive remedy of
the parties for any breach or inaccuracy of any representation or warranty
contained in this Agreement, or any other claim (whether or not alleging a
breach of this Agreement) that arises out of the facts and circumstances
constituting such breach or inaccuracy, shall be the indemnity provided in this
Article VIII.

    8.2.  Indemnification by the Cash Equity Investors.  Each Cash Equity
          --------------------------------------------
Investor shall indemnify and hold harmless each other Cash Equity Investor, each
Management Stockholder and the Company and their respective Affiliates, and the
shareholders, members, managers, officers, employees, agents and/or the legal
representatives of any of them (each, a "Section 8.2 Indemnified Party"),
                                         -----------------------------
against all liabilities and expenses (including amounts paid in satisfaction of
judgments, in compromise, as fines and penalties, and as counsel fees)
(collectively, "Losses") incurred by him or it in connection with the
                ------
investigation, defense, or disposition of any action, suit or other proceeding
in which any Section 8.2 Indemnified Party may be involved or with which he or
it may be threatened (whether arising out of or relating to matters asserted by
third parties against a Section 8.2 Indemnified Party or incurred or sustained
by such party in the absence of a third-party claim), that arises out of or
results from (a) any representation or warranty of such indemnifying party
contained in this Agreement being untrue in any material respect as of the date
on which it was made or (b) any material default by such indemnifying party or
any of its Affiliates in the performance of their respective obligations under
this Agreement, except to the extent (but only to the extent) any such Losses
arise out of or result

                                      -26-
<PAGE>

from the gross negligence or willful misconduct of such Section 8.2 Indemnified
Party or its Affiliates.

    8.3.  Indemnification by the Management Stockholders.  Each Management
          ----------------------------------------------
Stockholder, severally and not jointly, shall indemnify and hold harmless each
Cash Equity Investor and the Company and their respective Affiliates, and the
shareholders, members, managers, officers, employees, agents and/or the legal
representatives of any of them (each, a "Section 8.3 Indemnified Party"),
                                         -----------------------------
against all Losses incurred by him or it in connection with the investigation,
defense, or disposition of any action, suit or other proceeding in which any
Section 8.3 Indemnified Party may be involved or with which he or it may be
threatened (whether arising out of or relating to matters asserted by third
parties against a Section 8.3 Indemnified Party or incurred or sustained by such
party in the absence of a third-party claim), that arises out of or results from
(a) any representation or warranty of such Management Stockholder contained in
this Agreement being untrue in any material respect as of the date on which it
was made or (b) any material default by such Management Stockholder in the
performance of his obligations under this Agreement, except to the extent (but
only to the extent) any such Losses arise out of or result from the gross
negligence or willful misconduct of such Section 8.3 Indemnified Party or its
Affiliates; provided that the aggregate liability of each Management Stockholder
to indemnify Section 8.3 Indemnified Parties against Losses arising out of or
resulting from (x) the untruth in any material respect of any representation or
warranty as to the Company made by such Management Stockholder in this
Agreement, (y) any material default by such Management Stockholder in the
performance of his obligations under this Agreement, shall (except, in the case
of clause (y), to the extent (but only to the extent) any such Losses arise out
of or result from the gross negligence or willful misconduct of such Management
Stockholder) be limited to the shares of Common Stock and  Preferred Stock of
the Company (other than any Excluded Stock) then held by such Management
Stockholder, and Section 8.3 Indemnified Parties seeking indemnification against
any Management Stockholder for such Losses hereunder shall not have recourse to
any other assets of such Management Stockholder.

    8.4.  Indemnification by the Company.  The Company shall indemnify and hold
          ------------------------------
harmless each of the Cash Equity Investors and their respective Affiliates, and
the shareholders, members, managers, officers, employees, agents and/or the
legal representatives of any of them (each, a "Section 8.4 Indemnified Party"),
                                               -----------------------------
against all Losses incurred by him or it in connection with the investigation,
defense, or disposition of any action, suit or other proceeding in which any
Section 8.4 Indemnified Party may be involved or with which he or it may be
threatened (whether arising out of or relating to matters asserted by third
parties against a Section 8.4 Indemnified Party or incurred or sustained by such
party in the absence of a third-party claim), that arises out of or results from
(a) any representation or warranty of the Company contained in this Agreement
being untrue in any material respect as of the date on which it was made or (b)
any material default by the Company or any of its Affiliates in the performance
of their respective obligations under this Agreement, except to the extent (but
only to the extent) any such Losses arise out of or result from the gross
negligence or willful misconduct of such Section 8.4 Indemnified Party or its
Affiliates.

                                      -27-
<PAGE>

    8.5.  Procedures.
          (a)  The terms of this Section 8.5 shall apply to any claim (a
"Claim") for indemnification under the terms of Sections 8.2, 8.3 or 8.4. The
 -----
Section 8.2 Indemnified Party, Section 8.3 Indemnified Party or Section 8.4
Indemnified Party (each, an "Indemnified Party"), as the case may be, shall
                             -----------------
give prompt written notice of such Claim to the indemnifying party (the
"Indemnifying Party") under the applicable Section, which party may assume
 -------------------
the defense thereof, provided that any delay or failure to so notify the
Indemnifying Party shall relieve the Indemnifying Party of its obligations
hereunder only to the extent, if at all, that it is materially prejudiced by
reason of such delay or failure. The Indemnified Party shall have the right to
approve any counsel selected by the Indemnifying Party and to approve the terms
of any proposed settlement, such approval not to be unreasonably delayed or
withheld (unless, in the case of approval of a proposed settlement, such
settlement provides only, as to the Indemnified Party, the payment of money
damages actually paid by the Indemnifying Party and a complete release of the
Indemnified Party in respect of the claim in question). Notwithstanding any of
the foregoing to the contrary, the provisions of this Article VIII shall not be
construed so as to provide for the indemnification of any Indemnified Party for
any liability to the extent (but only to the extent) that such indemnification
would be in violation of applicable law or that such liability may not be
waived, modified or limited under applicable law, but shall be construed so as
to effectuate the provisions of this Article VIII to the fullest extent
permitted by law.

          (b) In the event that the Indemnifying Party undertakes the defense of
any Claim, the Indemnifying Party will keep the Indemnified Party advised as to
all material developments in connection with such Claim, including, but not
limited to, promptly furnishing the Indemnified Party with copies of all
material documents filed or served in connection therewith.

          (c)  In the event that the Indemnifying Party fails to assume the
defense of Claim within ten business days after receiving written notice
thereof, the Indemnified Party shall have the right, subject to the Indemnifying
Party's right to assume the defense pursuant to the provisions of this Article
VIII, to undertake the defense, compromise or settlement of such Claim for the
account of the Indemnifying Party. Unless and until the Indemnified Party
assumes the defense of any Claim, the Indemnifying Party shall advance to the
Indemnified Party any of its reasonable attorneys' fees and other costs and
expenses incurred in connection with the defense of any such action or
proceeding. Each Indemnified Party shall agree in writing prior to any such
advancement that, in the event he or it receives any such advance, such
Indemnified Party shall reimburse the Indemnifying Party for such fees, costs
and expenses to the extent that it shall be determined that he or it was not
entitled to indemnification under this Article VIII.

          (d)  In no event shall an Indemnifying Party be required to pay in
connection with any Claim for more than one firm of counsel (and local counsel)
for each of the following groups of Indemnified Parties: (i) the Cash Equity
Investors, their respective Affiliates, and the shareholders, members, managers,
officers, employees, agents and/or the legal representatives of any of them; and
(ii) the Company and the Management Stockholders, its respective Affiliates,

                                      -28-
<PAGE>

and the shareholders, members, managers, officers, employees, agents and/or the
legal representatives of any of them.

          8.6. Registration Rights.  Notwithstanding anything to the contrary
               -------------------
in this Article VIII, the indemnification and contribution provisions set forth
in Sections 5(e) and 5(f) of the Stockholders' Agreement shall govern any claim
made with respect to the registration statements filed pursuant to Section 5 of
the Stockholders' Agreement or sales made thereunder.

          8.7. Limit on Indemnity.  So long as the Company does not conduct any
               ------------------
business or engage in any activities other than those described in the first
sentence of the definition of "Business" (as such term is defined in the
Stockholders' Agreement), each party waives its right to indemnification under
this Article VIII or any other right to assert any claim arising from any
inaccuracy in the Company's representations and warranties set forth in the
first and last sentence of Section 5.9 or the violation by the Company of the
covenant set forth in Section 6.5(d) to the extent such Section relates to
ineligible or prohibited activities of SBICs.

                                  ARTICLE IX

                                  TERMINATION

    9.1.  Termination.  In addition to any other rights of termination set forth
          -----------
herein, this Agreement may be terminated, and the Transactions abandoned,
without further obligation of any party (except as set forth herein), at any
time prior to the Closing Date:

          (a)  by mutual written consent of the parties;

          (b) by any party (other than a Management Stockholder) by written
notice to the other parties, if the Closing shall not have occurred on or before
the date that is six months after the date hereof, provided that the party
electing to exercise such right is not otherwise in breach of its obligations
under this Agreement; or

          (c) by any party by written notice to the other parties, if the
consummation of the Transactions shall be prohibited by a final, non-appealable
order, decree or injunction of a court of competent jurisdiction.

    9.2.  Effect of Termination.  (a) In the event of a termination of this
          ---------------------
Agreement, no party hereto shall have any liability or further obligation to any
other party to this Agreement, except as set forth in paragraph (b) below, and
except that nothing herein will relieve any party from liability for any breach
by such party of this Agreement.

          (a) In the event of a termination of this Agreement pursuant to
Section 9.1, all provisions of this Agreement shall terminate, except Articles
VIII and X.

                                      -29-
<PAGE>

          (b) Whether or not the Closing occurs, except as otherwise expressly
provided in this Agreement, all costs and expenses incurred in connection with
this Agreement and the Transactions shall be paid by the party incurring such
expenses.

                                   ARTICLE X

                            MISCELLANEOUS PROVISIONS

    10.1. Amendment and Modification.  This Agreement may be amended, modified
          --------------------------
or supplemented only by written agreement of each of the parties.

    10.2. Waiver of Compliance; Consents.  Any failure of any of the parties to
          ------------------------------
comply with any obligation, covenant, agreement or condition herein may be
waived by the party or parties entitled to the benefits thereof only by a
written instrument signed by the party granting such waiver, but such waiver or
failure to insist upon strict compliance with such obligation, covenant,
agreement or condition shall not operate as a waiver of, or estoppel with
respect to, any subsequent or other failure. Whenever this Agreement requires or
permits consent by or on behalf of any party hereto, such consent shall be given
in writing in a manner consistent with the requirement for a waiver of
compliance as set forth in this Section 10.2.

    10.3. Notices.  All notices or other communications hereunder shall be in
          -------
writing and shall be given (and shall be deemed to have been duly given upon
receipt) by delivery in person against receipt, by facsimile transmission with
confirmation of receipt, or by registered or certified mail (return receipt
requested), postage prepaid, with an acknowledgment of receipt signed by the
addressee or an authorized representative thereof, addressed as follows (or to
such other address for a party as shall be specified by like notice; provided
that notice of a change of address shall be effective only upon receipt
thereof):

    If to a Cash Equity Investor, to its address set forth on Schedule I.

    With a copy to:

    Mayer, Brown & Platt
    1675 Broadway
    New York, New York  10019
    Attention: Mark S. Wojciechowski
    Facsimile: (212) 262-1910

    If to a Management Stockholder, to him in care of the Company.

    With a copy to:
    TeleCorp PCS, Inc.
    1010 N. Glebe Road, Suite 800
    Arlington, Virginia 22201
    Attn:  General Counsel

                                      -30-
<PAGE>

    Facsimile:  (703) 236-1102


    If to the Company or Acquisition Corp., to it:

    1010 N. Glebe Road, Suite 800
    Arlington, Virginia  22201
    Attn:  General Counsel
    Facsimile: (703) 236-1102

    With a copy to each other party sent to the addresses set forth in this
Section 10.3.

    10.4. Expenses.  The Company agrees, in the event the Transactions are
          --------
consummated, to pay, and save the Cash Equity Investors harmless against, the
reasonable fees and disbursements of one corporate counsel and one FCC counsel
of the Cash Equity Investors in the aggregate in connection with the
preparation, negotiation, execution and delivery of this Agreement, the Related
Agreement Amendments, the instruments and documents executed pursuant hereto or
thereto or in connection herewith or therewith, and the consummation of the
Transactions.

    10.5. Parties in Interest; Assignment.  This Agreement is binding upon and
          -------------------------------
is solely for the benefit of the parties hereto and their respective permitted
successors, legal representatives and permitted assigns. Neither the Company nor
any Cash Equity Investor may assign its rights and obligations hereunder without
the prior written consent of each of the other parties; provided, that: (a) the
Company shall have the right to assign its rights under this Agreement to the
lenders (the "Lenders") named in the Credit Agreement, as security pursuant to
              -------
the terms of the Credit Documents, it being understood that as a result of any
such assignment to the Lenders, after an event of default under the Credit
Agreement and the expiration of any applicable grace and cure periods
thereunder, the Lenders shall have the right, on behalf of the Company, to
enforce the obligation of each Cash Equity Investor to make capital
contributions to the Company in the amounts and on the dates specified on
Schedule III(a) (or such earlier dates as may be established in accordance with
the terms of the Stockholders' Agreement) and that, in connection with any such
assignment to the Lenders, the Lenders shall not assume any obligations of the
Company hereunder; and (b) any Cash Equity Investor may assign its rights and
obligations hereunder with the prior written consent of AT&T PCS, such consent
not to be unreasonably withheld, and any Cash Equity Investor may assign its
rights and obligations hereunder to any Affiliate, provided, that such assignee
shall have assumed in writing all the obligations of such Cash Equity Investor
hereunder and no such assignment shall relieve such Cash Equity Investor of its
obligations hereunder

    10.6. Applicable Law.  This Agreement shall be governed by and construed in
          --------------
accordance with the laws of the State of New York without giving effect to the
conflicts of law principles thereof.  The parties hereto hereby irrevocably and
unconditionally consent to submit to the non-exclusive jurisdiction of the
courts of the State of New York and of the United States

                                      -31-
<PAGE>

of America located in the County of New York, New York (the "New York Courts")
                                                             ---------------
for any litigation arising out of or relating to this Agreement and the
Transactions, waive any objection to the laying of venue of any such litigation
in the New York Courts and agrees not to plead or claim in any New York Court
that such litigation brought therein has been brought in an inconvenient forum.

    10.7. Counterparts. This Agreement may be executed in two or more
          ------------
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

    10.8. Interpretation.  The article and section headings contained in this
          --------------
Agreement are for convenience of reference only, are not part of the agreement
of the parties and shall not affect in any way the meaning or interpretation of
this Agreement.

    10.9. Entire Agreement. This Agreement, including the exhibits and schedules
          ----------------
hereto and thereto and the certificates and instruments delivered pursuant to
the terms of this Agreement, embody the entire agreement and understanding of
the parties hereto in respect of the Transactions.  There are no restrictions,
promises, representations, warranties, covenants or undertakings, other than
those expressly set forth or referred to herein.  This Agreement supersedes all
prior agreements and understandings between the parties with respect to such
Transactions.

    10.10. Publicity.  So long as this Agreement is in effect, the parties agree
           ---------
to consult with each other in issuing any press release or otherwise making any
public statement with respect to the Transactions, and no party shall issue any
press release or make any such public statement prior to such consultation,
except as may be required by Law.  No press release or other public statement by
the parties hereto shall disclose any of the financial terms of the Transactions
without the prior consent of the other parties, except as may be required by
Law.  A breach of the provisions of this Section 10.10 by a party shall not give
rise to any right to terminate this Agreement.

    10.11. Specific Performance.  The parties hereto agree that irreparable
           --------------------
damage would occur in the event that any of the provisions of this Agreement
were not performed in accordance with their specific terms or were otherwise
breached.  It is accordingly agreed that the parties shall be entitled to an
injunction or injunctions to prevent breaches of this Agreement and to enforce
specifically the terms and provisions hereof in any New York Courts.

    10.12. Remedies Cumulative.  All rights, powers and remedies provided under
           -------------------
this Agreement or otherwise available in respect hereof at law or in equity
shall be cumulative and not alternative, and the exercise or beginning of the
exercise of any thereof by any party shall not preclude the simultaneous or
later exercise of any other such right, power or remedy by such party.

                                      -32-
<PAGE>

    10.13. Severability.  Any provision of this Agreement that is prohibited or
           ------------
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the
remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction.  If any court determines that any covenant or any part of
any covenant is invalid or unenforceable, such covenant shall be enforced to the
extent permitted by such court, and all other covenants shall not thereby be
affected and shall be given full effect, without regard to the invalid portions.

    10.14. Beneficiaries of Agreement.  The representations, warranties,
           --------------------------
covenants and agreements expressed in this Agreement are for the sole benefit of
the other parties hereto and the Section 8.2 Indemnified Parties, Section 8.3
Indemnified Parties and Section 8.4 Indemnified Parties and are not intended to
benefit, and may not be relied upon or enforced by, any other party as a third
party beneficiary or otherwise.

    10.15. F Block Joint Ventures.  In the event that AT&T PCS elects to receive
           ----------------------
Joint Venture Notes as consideration pursuant to the Acquisition Agreement, then
the Cash Equity Investors hereby agree (i) to the terms and conditions of the
Summary of Principal Terms attached hereto as Exhibit D regarding a joint
venture involving certain companies holding F-Block licenses, and (ii) to
consummate such transaction as contemplated therein.  The parties hereby further
agree that references in the Summary of Principal Terms to "TeleCorp Notes" also
means Series E Notes.

    10.16. Stock Valuation.  The parties hereby agree that the per share value
           ---------------
attributable as of the date hereof to the Voting Common Stock, the Series C
Preferred Stock and the Series E Preferred Stock is $1.00, $999.00 and $.01,
respectively.

                                      -33-
<PAGE>

        IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first above written.

                                 TELECORP PCS, INC.


                                 By:/s/ Thomas H. Sullivan
                                    -------------------------------
                                    Name:  Thomas H. Sullivan
                                    Title: Executive Vice President

                                 PUERTO RICO ACQUISITION CORP.


                                 By:/s/ Thomas H. Sullivan
                                    -------------------------------
                                    Name:  Thomas H. Sullivan
                                    Title: President

                                 Cash Equity Investors:

                                 CB CAPITAL INVESTORS, L.P.

                                 By: CB Capital Investors, Inc.
                                    its general partner

                                 By:/s/ Michael R. Hannon
                                    -------------------------------
                                    Name:  Michael R. Hannon
                                    Title: General Partner

                                 NORTHWOOD VENTURES LLC


                                 By:/s/ Peter G. Schiff
                                    -------------------------------
                                    Name:  Peter G. Schiff
                                    Title: President

                                      -34-
<PAGE>

                                 NORTHWOOD CAPITAL PARTNERS LLC


                                 By:  /s/ Peter G. Schiff
                                      ------------------------------
                                 Name:  Peter G. Schiff
                                 Title:  President



                                 MEDIA/COMMUNICATIONS INVESTORS LIMITED
                                 PARTNERSHIP

                                 By: M/C Investors General Partner - J. Inc.,
                                     a general partner


                                 By: /s/ James F. Wade
                                     ---------------------------------
                                    Name:  James F. Wade
                                    Title:


                                 MEDIA/COMMUNICATIONS PARTNERS III LIMITED
                                 PARTNERSHIP

                                 By: M/CP III L.L.C.
                                     its general partner


                                 By: /s/ James F. Wade
                                     ---------------------------------
                                    Name:  James F. Wade
                                    Title:    Manager


                                 EQUITY-LINKED INVESTORS-II

                                 By: ROHIT M. DESAI ASSOCIATES-II,
                                     Its general partner

                                 By: /s/ Frank J. Pados
                                     ----------------------------------
                                    Name: Frank J. Pados, Jr.
                                    Title: Attorney-in-Fact




                                      -35-

<PAGE>

                                 PRIVATE EQUITY INVESTORS III, L.P.

                                 By: ROHIT M. DESAI ASSOCIATES III, LLC,
                                     Its general partner

                                 By: /s/ Frank J. Pados
                                     ----------------------------------
                                    Name: Frank J. Pados, Jr.
                                    Title: Attorney-in-Fact


                                 HOAK COMMUNICATIONS PARTNERS, L.P.

                                 By: HCP Investments, L.P.,
                                     Its general partner

                                 By: Hoak Partners, LLC,
                                     Its general partner

                                 By: /s/ James M. Hoak
                                     ----------------------------------
                                    James M. Hoak
                                    Manager


                                 HCP CAPITAL FUND, L.P.

                                 By: James M. Hoak & Co.,
                                     Its general partner


                                 By: /s/ James M. Hoak
                                     -----------------------------------
                                    James M. Hoak
                                    Chairman


                                      -36-
<PAGE>

                                 WHITNEY EQUITY PARTNERS, L.P.

                                 By: J.H. Whitney & Co.,
                                     Its general partner

                                 By: /s/ William Laverack Jr.
                                     ------------------------------------
                                    Name: William Laverack Jr.
                                    Title:


                                 J.H. WHITNEY III, L.P.

                                 By: J.H. Whitney & Co.,
                                     Its general partner

                                 By: /s/ William Laverack Jr.
                                     -----------------------------------
                                    Name: William Laverack Jr.
                                    Title:


                                 WHITNEY STRATEGIC PARTNERS III, L.P.

                                 By: J.H. Whitney & Co.,
                                     Its general partner

                                 By: /s/ William Laverack Jr.
                                     ------------------------------------
                                    Name: William Laverack Jr.
                                    Title:


                                 TORONTO DOMINION INVESTMENTS INC.

                                 By: /s/ Martha L. Gariepy
                                     ------------------------------------
                                 Name: Martha L. Gariepy
                                 Title: Vice President

                                      -37-


<PAGE>

                                 ONELIBERTY FUND IV, L.P.

                                 By: /s/ Joseph T. McCullen, Jr.
                                     -----------------------------------
                                 Name:  Joseph T. McCullen, Jr.
                                 Title:  General Partner


                                 Management Stockholders:


                                 /s/ Thomas Sullivan
                                 ---------------------------------------
                                    Thomas Sullivan


                                 /s/ Gerald Vento
                                 ---------------------------------------
                                    Gerald Vento

                                      -38-


<PAGE>

                                                                      SCHEDULE I

                             Cash Equity Investors
                             ---------------------

Notice Addresses
- ----------------

CB Capital Investors, L.P.
380 Madison Avenue, 12th Floor
New York, NY  10017
Attn:  Michael Hannon
Fax:  (212) 622-3101

Equity-Linked Investors-II
Private Equity Investors III, L.P.
540 Madison Avenue, 36th Floor
New York, NY  10022
Attn:  Rohit M. Desai
Fax:  (212) 752-7807

Hoak Communications Partners, L.P.
HCP Capital Fund, L.P.
One Galleria Tower
13355 Noel Road, Suite 1050
Dallas, Texas  75240
Attn:  James Hoak
Fax:  (972) 960-4899

Whitney Equity Partners, L.P.
J.H. Whitney III, L.P.
Whitney Strategic Partners III, L.P.
177 Broad Street, 15th Floor
Stamford, Connecticut  06901
Attn:  William Laverack, Jr.
Fax:  (203) 973-1422

Media/Communications Investors Limited Partnership
Media/Communications Partners III Limited Partnership
75 State Street, Suite 2500
Boston, MA  02109
Attn:  James F. Wade
Fax:  (617) 345-7201

One Liberty Fund IV, L.P.
One Liberty Square
Boston, MA  02109
Attn:  Joseph T. McCullen
Fax:  (617) 423-1765
<PAGE>

Northwood Ventures LLC
Northwood Capital Partners LLC
485 Underhill Boulevard, Suite 205
Syosset, New York  11791-3419
Attn:  Peter Schiff
Fax:  (516) 364-0879

Toronto Dominion Investments Inc.
31 West 52nd Street
New York, NY 10019-6101
Attn: Steve Reinstadtler
Fax:  (212) 974-8429

(with a copy to)

Toronto Dominion Investments, Inc.
909 Fannin
Suite 1700
Houston, TX 77010
Attn:  Martha Gariepy
Fax:  (713) 652-2647
<PAGE>

                                                                     SCHEDULE II

                            Management Stockholders
                            -----------------------

                                Excluded Stock
                                --------------

<TABLE>
<CAPTION>
                                                     Management Stockholders
                                                     -----------------------
Excluded Stock                         Gerald T. Vento              Thomas H. Sullivan
<S>                                   <C>                           <C>
Common Stock
     Class A Common Stock             11,206.93                     6,795.88
     Class C Common Stock                341.24                       211.56
     Class D Common Stock                  9.26                         2.06
     Voting Preference Stock               5                            5
                                      ---------                     --------
Common Stock Total:                   11,562.43                     7,014.50

Preferred Stock
     Series C Preferred Stock               450                          100
     Series E Preferred Stock           8729.40                      5426.38
                                      ---------                     --------
Preferred Stock Total:                 9,179.40                     5,526.38
</TABLE>
<PAGE>

                                                                    SCHEDULE III

                    Equity Issued to Cash Equity Investors
                    --------------------------------------

See Attached Chart: TeleCorp PCS, Inc. Puerto Rico Transaction Cash Equity
Commitment and Share Allocation.
<PAGE>

                               TeleCorp PCS Inc.
                            Puerto Rico Transaction
                  Cash Equity Commitment and Share Allocation
<TABLE>
<CAPTION>
                                          Baseline Commitment     Preferred       Common        Common         Common      Total
 Cash Equity Holder                            (dollars)           Series C      Series A     Tracking C     Tracking D    Common
 ------------------                       -------------------     ---------      --------     ----------     ----------   --------
<S>                                        <C>                    <C>            <C>           <C>           <C>          <C>

Chase                                         9,785,100            9,785.10      9,785.10          -               -       9,785.10
Desai
     Equity-Linked Investors-II               4,892,550            4,892.55      4,892.55          -               -       4,892.55
     Private Equity Investors III, L.P.       4,892,550            4,892.55      4,892.55          -               -       4,892.55
                                          --------------       -------------   -----------    -----------    ----------   ----------
              Total Desai                     9,785,100            9,785.10      9,785.10          -               -       9,785.10
Hoak
     Hoak Communications Partners, L.P.       6,723,900            6,723.90      6,723.90          -               -       6,723.90
     HCP Capital Fund, L.P.                     615,000              615.00        615.00          -               -         615.00
                                          --------------       -------------   -----------    ----------     ----------   ----------
              Total Hoak                      7,338,900            7,338.90      7,338.90          -               -       7,338.90

JH Whitney
     J.H. Whitney III LP                      4,180,258            4,180.26      4,180.26          -               -       4,180.26
     Whitney Equity Partners, LP              1,834,710            1,834.71      1,834.71          -               -       1,834.71
     Whitney Strategic Partners, III LP         100,732              100.73        100.73          _               -         100.73
                                          --------------        ------------   -----------   -----------     ----------   ----------
             Total JH Whitney                 6,115,700            6,115.70      6,115.70          _               -       6,115.70

Entergy                                              -                   -             -           -               -            -
M/C Partners
     M/C Partners III Limited Partnership     3,522,624            3,522.62      3,522.62          _               -       3,522.62
     M/C Investors Limited Partnership          146,776              146.78        146.78          -               -         146.78
                                          --------------        ------------   -----------    ----------    -----------   ----------
             Total M/C Partners               3,669,400            3,669.40      3,669.40          -               -       3,669.40

One Liberty
     One Liberty Fund                         1,210,869            1,210.87      1,210.87          -               -       1,210.87
     Gilde International                         12,231               12.23         12.23          -               -          12.23
                                          --------------        ------------   -----------    ----------    -----------   ----------
               Total One Liberty              1,223,100            1,223.10      1,223.10          -               -       1,223.10

TD                                            1,223,100            1,223.10      1,223.10          -               -       1,223.10
Northwood
     Northwood Ventures LLC                     727,770              727.77        727.77          -               -         727.77
     Northwood Capital Partners LLC             128,430              128.43        128.43          -               -         128.43
                                          --------------          ----------    ----------    ----------    -----------   ----------
             Total Northwood                    856,200              856.20        856.20          -               -         856.20
- ------------------------------------------------------------------------------------------------------------------------------------
Total Cash Equity                            39,996,600           39,996.60     39,996.60          -               -      39,996.60
- ------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>




                                                   Common
Cash Equity Holder                            Percent of Total
- ------------------                          -------------------
<S>                                               <C>
Chase                                               24.46%
Desai
     Equity-Linked Investors-II                     12.23%
     Private Equity Investors III, L.P.             12.23%
                                               -----------
              Total Desai                           24.46%
Hoak
     Hoak Communications Partners, L.P.             16.61%
     HCP Capital Fund, L.P.                          1.54%
                                               -----------
              Total Hoak                            18.35%

JH Whitney
     J.H. Whitney III LP                            10.45%
     Whitney Equity Partners, LP                     4.59%
     Whitney Strategic Partners, III LP              0.25%
                                              -----------
             Total JH Whitney                       15.29%


Entergy                                              0.00%
M/C Partners
     M/C Partners III Limited Partnership            8.81%
     M/C Investors Limited Partnership               0.37%
                                               ----------
             Total M/C Partners                      9.17%


One Liberty
     One Liberty Fund                                3.03%
     Gilde International                             0.03%
                                              -----------
               Total One Liberty                     3.06%

TD                                                   3.06%
Northwood
     Northwood Ventures LLC                          1.82%
     Northwood Capital Partners LLC                  0.32%
                                              -----------
             Total Northwood                         2.14%
- ---------------------------------------------------------
Total Cash Equity                                  100.00%
- ---------------------------------------------------------
</TABLE>





<PAGE>

                                                                 SCHEDULE III(a)

                    Cash Equity Investors Funding Schedule
                    --------------------------------------

See Attached Chart:  TeleCorp PCS, Inc. Puerto Rico Transaction Cash Equity
Funding Schedule.
<PAGE>

                               TeleCorp Pcs Inc.
                            Puerto Rico Transaction
                         Cash Equity Funding Schedule
<TABLE>
<CAPTION>
                                             Initial Cash        2nd Equity Draw    3rd Equity Draw    4th Equity Draw   Aggregate
Cash Equity Holder                           Contribution           (12/15/99)          (3/2001)           (3/2002)      Commitment
- ------------------                        -------------------    ---------------    ---------------    ---------------   ----------
<S>                                        <C>                    <C>               <C>                 <C>              <C>


Chase                                            2,935,530           1,467,770           2,690,900         2,690,900      9,785,100
Desai
     Equity-Linked Investors-II                  1,467,765             733,885           1,345,450         1,345,450      4,892,550
     Private Equity Investors III, L.P.          1,467,765             733,885           1,345,450         1,345,450      4,892,550
                                          -----------------      ---------------    ---------------    --------------    ----------
             Total Desai                         2,935,530           1,467,770           2,690,900         2,690,900      9,785,100
Hoak
     Hoak Communications Partners, L.P.          2,017,170           1,008,590           1,849,070         1,849,070      6,723,900
     HCP Capital Fund, L.P.                        184,500              92,250             169,125           169,125        615,000
                                          -----------------      --------------     ---------------    --------------    ----------
             Total Hoak                          2,201,670           1,100,840           2,018,195         2,018,195      7,338,900

JH Whitney
     J.H Whitney III LP                          1,254,007             627,040           1,149,570         1,149,570      4,180,258
     Whitney Equity Partners, LP                   550,413             275,210             504,544           504,544      1,834,710
     Whitney Strategic Partners, III LP             30,220              15,110              27,701            27,701        100,732
                                          -----------------      --------------     ---------------    --------------    ----------
             Total JH Whitney                    1,834,710             917,360           1,681,815         1,681,815      6,115,700

Entergy                                                 -                   -                   -                 -              -
M/C Partners
     M/C Partners III Limited Partnership        1,056,787             528,390             968,723           968,723      3,522,624
     M/C Investors Limited Partnership              44,033              22,020              40,362            40,362        146,776
                                          -----------------     ---------------     ---------------    --------------    ----------
             Total M/C Partners                  1,100,820             550,410           1,009,085         1,009,085      3,669,400

One Liberty
     One Liberty Fund                              363,261             181,635             332,987           332,987      1,210,869
     Gilde International                             3,669               1,835               3,363             3,363         12,231
                                          -----------------      --------------     ---------------    --------------    ----------
             Total One Liberty                     366,930             183,470             336,350           336,350      1,223,100

TD
Northwood
     Northwood Ventures LLC                        218,331             109,170             200,135           200,135        727,770
     Northwood Capital Partners LLC                 38,529              19,260              35,321            35,321        128,430
                                          -----------------      --------------     ---------------    --------------    ----------
             Total Northwood                       256,860             128,430             235,455           235,455        856,200
- ------------------------------------------------------------------------------------------------------------------------------------
Total Cash Equity                               11,998,980        5,999,520.00       10,999,050.00        10,999,050     39,996,600
- ------------------------------------------------------------------------------------------------------------------------------------

</TABLE>



<PAGE>

                                                                 SCHEDULE III(b)

                   Equity Issued to Management Stockholders
                   ----------------------------------------

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------
        Name          Total Voting Common Stock   Series E Preferred Stock     Extraordinary Event Shares
- --------------------  -------------------------  ---------------------------  ----------------------------
<S>                   <C>                        <C>                          <C>
Gerald T. Vento                        3,260.75                     2,505.73                        652.15
- ----------------------------------------------------------------------------------------------------------
Thomas H. Sullivan                     2,026.95                     1,557.62                        405.39
- ----------------------------------------------------------------------------------------------------------
</TABLE>

                   Management Stockholders Funding Commitment
                   ------------------------------------------

Gerald T. Vento           $25.06

Thomas H. Sullivan        $15.58
<PAGE>

                                                                     SCHEDULE IV

                                Capitalization
                                --------------

                                 See Attached.
<PAGE>

<TABLE>
<CAPTION>

                                                         TeleCorp PCS Inc.
                                                       Capitalization Table
                                                          As of 5/25/1999

                                                  ---------------------------------------------------------------------------------
                                                                     Preferred  Stock
                                                  ---------------------------------------------------------------------------------
                                          Total
                                         Dollars                                                                            Senior
                                        Committed       Series A     Series B   Series C   Series D   Series E   Series F   Common
                                   ------------------------------------------------------------------------------------------------
Cash Equity
- -----------
<S>                                    <C>            <C>            <C>       <C>         <C>        <C>        <C>        <C>
     Chase                              40,015,650                -         -   40,015.66          -          -          -       -
     Desai                              40,015,652                -         -   40,015.66          -          -          -       -
     Hoak                               30,011,649                -         -   30,011.65          -          -          -       -
     JH Whitney                         25,009,539                -         -   25,009.54          -          -          -       -
     Entergy                            14,435,968                -         -   14,435.97          -          -          -       -
     M/C Partners                       15,006,156                -         -   15,006.16          -          -          -       -
     One Liberty                         5,002,015                -         -    5,002.01          -          -          -       -
     TD                                  4,926,095                -         -    4,926.09          -          -          -       -
     Northwood                           3,501,077                -         -    3,501.08          -          -          -       -
     Total Management                      550,000                -         -      550.00          -          -          -       -

     Total                             178,473,801                             178,473.82
   --------------------------------------------------------------------------------------------------------------------------------

 License Equity
 --------------
     One Liberty Fund III LP             1,531,425                -         -    1,531.43          -          -          -       -
     Gilde Investment Fund BV               15,469                -         -       15.46          -          -          -       -
     Northwood Ventures LLC                928,136                -         -      928.14          -          -          -       -
     Northwood Capital Partners LLC        232,034                -         -      232.03          -          -          -       -
     CB Capital Investors, LP            1,160,171                -         -    1,160.17          -          -          -       -
     TeleCorp Investment Corp., LLC      1,160,171                -         -    1,160.18          -          -          -       -
     M/C Partners III LP                 1,113,768                -         -    1,113.77          -          -          -       -
     M/C Investors LP                       46,403                -         -       46.40          -          -          -       -
     Entergy                             1,160,171                -         -    1,160.17          -          -          -       -

     Total                               7,347,748                               7,347.75
   --------------------------------------------------------------------------------------------------------------------------------

 New License Equity
 ------------------
     AT&T                               45,974,850        30,649.90         -           -  15,740.93          -  15,324.95       -
     TRW                                54,109,369        36,072.91         -           -  18,526.04          -  18,036.46       -
     AT&T Puerto Rico                   41,000,043        30,750.03         -           -  10,250.01          -  10,000.00       -
                                       -----------    -------------                        ---------             ---------
     Subtotal AT&T                     141,084,262        97,472.84         -           -  44,516.98          -  43,361.41       -

     Mercury / Digital PCS               2,332,545                -         -    2,332.55          -          -          -       -
     G. Vento                                    -                -         -           -          -  11,235.13          -       -
     T. Sullivan                                 -                -         -           -          -   6,984.00          -       -

     Total Other Management                      -                -         -           -          -   7,085.22          -       -

     Total                             143,416,807        97,472.84         -    2,332.55  44,516.98  25,304.34  43,361.41       -
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
 Total Equity                          329,238,356        97,472.84         -  188,154.12  44,516.98  25,304.34  43,361.41       -
- -----------------------------------------------------------------------------------------------------------------------------------



<CAPTION>
                                         -----------------------------------------------------------------------------------
                                                                               Common
                                         -----------------------------------------------------------------------------------
                                                                                             Voting                   Percent
                                           Series A      Series B   Tracking C   Tracking D  Preference  Total *      of Total
                                         -------------------------------------------------------------------------------------
<S>                                      <C>          <C>          <C>          <C>          <C>         <C>            <C>
Cash Equity
- -----------
     Chase                                38,602.66         -       87.10          571.78       -         39,261.54       14.87%
     Desai                                38,602.66         -       87.10          571.78       -         39,261.54       14.87%
     Hoak                                 28,951.91         -       65.32          428.84       -         29,446.07       11.15%
     JH Whitney                           24,126.42         -       54.44          357.37       -         24,538.23        9.29%
     Entergy                              13,729.47         -           -          329.44       -         14,058.91        5.32%
     M/C Partners                         14,476.28         -       32.66          214.42       -         14,723.36        5.58%
     One Liberty                           4,825.39         -       10.89           71.47       -          4,907.75        1.86%
     TD                                    4,749.47         -       10.89           71.47       -          4,831.83        1.83%
     Northwood                             3,377.44         -        7.62           50.03       -          3,435.09        1.30%
     Total Management                        522.02         -        1.72           11.32       -            535.06        0.20%

     Total                               171,963.72                357.74        2,677.92                174,999.38       66.27%
- -------------------------------------------------------------------------------------------------------------------------------

 License Equity
 --------------
     One Liberty Fund III LP               1,336.43         -        2.18           14.31       -          1,352.92        0.51%
     Gilde Investment Fund BV                 13.49         -        0.02            0.14       -             13.65        0.01%
     Northwood Ventures LLC                  913.80         -        1.49            9.79       -            925.08        0.35%
     Northwood Capital Partners LLC          228.45         -        0.37            2.45       -            231.27        0.09%
     CB Capital Investors, LP              1,142.25         -        1.86           12.23       -          1,156.34        0.44%
     TeleCorp Investment Corp., LLC        1,142.25         -        1.86           12.23       -          1,156.34        0.44%
     M/C Partners III LP                      45.69         -        0.07            0.49       -             46.25        0.02%
     M/C Investors LP                      1,096.55         -        1.79           11.74       -          1,110.08        0.42%
     Entergy                               1,142.25         -           -           14.09       -          1,156.34        0.44%

     Total                                 7,061.16                  9.64           77.47                  7,148.27        2.71%
- -------------------------------------------------------------------------------------------------------------------------------

 New License Equity
- -------------------
     AT&T                                         -         -           -               -       -         15,324.95        5.80%
     TRW                                          -         -           -               -       -         18,036.46        6.83%
     AT&T Puerto Rico                             -         -           -               -       -         10,000.00        3.79%
                                                                                                          ----------
     Subtotal AT&T                                                                                        43,361.41       16.42%

     Mercury / Digital PCS                 2,269.23         -           -               -       -          2,269.23        0.86%
     G. Vento                             14,040.57         -      339.83               -        5.00     14,380.40        5.45%
     T. Sullivan                           8,727.92         -      211.25               -        5.00      8,939.17        3.39%

     Total Other Management               12,955.33         -           -               -       -         12,955.33        4.91%

     Total                                37,993.05         -      551.08               -       10.00     81,905.54       31.02%
- -------------------------------------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------------------------------------
 Total Equity                            217,017.93         -      918.46        2,755.39       10.00    264,053.19      100.00%
- -------------------------------------------------------------------------------------------------------------------------------
</TABLE>

* Total Shares = all classes of Common Shares plus Series F Preferred

<PAGE>


SCHEDULE 4.2

                         Cash Equity Investor Consents
                         -----------------------------

        The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:

     1.  The Federal Communications Commission.

     2.  The Federal Trade Commission/Department of Justice.

     3.  Various Governmental Authorities with respect to Franchise Laws.

<PAGE>

                                                                    SCHEDULE 4.4

                                Attributable Interests
                                ----------------------

Chase Capital Partners:  Harold S. Hook, an outside director on the Board of
- ----------------------
                         Directors of Chase Manhattan Corporation, an affiliated
                         entity of CB Capital Investors, L.P., also serves on
                         the Board of Directors of Sprint Corporation.
<PAGE>

                                                                    SCHEDULE 5.2

                                 Company Consents
                                 ----------------

     The execution, delivery and performance of the Agreement will or may
equire the following consents, approvals and reviews:

     1.  The Federal Communications Commission.

     2.  The Federal Trade Commission/Department of Justice.

     3.  Various Governmental Authorities with respect to Franchise Laws.
<PAGE>

                                                                    SCHEDULE 5.6

                      Outstanding Options, Warrants, etc.
                      -----------------------------------

1.  Upon the closing of the transaction contemplated by the License Acquisition
    Agreement by and between Wireless 2000, Inc. ("Wireless") and the Company,
    dated as of December 2, 1998 (the "Wireless Acquisition Agreement"), the
    Company shall ssue to Wireless: (i) five hundred forty-five and 20/100
    (545.20) shares of Series C Preferred Stock, par value $.01 per share, and
    (ii) five hundred thirty nd 40/100 (530.40) shares of Class A Voting Common
    Stock, par value $.01 per share, of the Company.

2.  Upon the closing of the transaction contemplated by the License Acquisition
    Agreement by and between Mercury PCS II, LLC ("Mercury") and the Company,
    dated as of May 15, 1998 (the "Mercury Acquisition Agreement"), the Company
    shall issue to Mercury: (i) two thousand three hundred thirty-two and 55/100
    (2,332.50) shares of Series C Preferred Stock, par value $.01 per share, and
    (ii) two thousand two hundred sixty-nine and 23/100 (2,269.23) shares of
    Class A Voting Common Stock, par value $.01 per share, of the Company and
    shall issue additional shares of Series C Preferred Stock and Class A Voting
    Common Stock to the Cash Equity Investors as set forth on Schedule V of the
    Securities Purchase Agreement, setting forth Share Allocation With
    Supplemental Allocation.

3.  The Company may issue Series E Notes to certain existing shareholders of the
    Company in connection with the transactions set forth in the Summary of
    Principal Terms.
<PAGE>

                                                                    SCHEDULE 5.9

                                 Subsidiaries
                                 ------------

<TABLE>
<CAPTION>
         Subsidiary Name                       State of              Qualified in:
                                             Incorporation
- -----------------------------------------------------------------------------------------
<S>                                        <C>                <C>
1.  TeleCorp Communications, Inc.                 DE          AR, DC, IL, IN, LA, MA,
                                                              MO, MS, NH, TN, TX, VA
- -----------------------------------------------------------------------------------------
2.  TeleCorp Holding Corp., Inc.                  DE          LA, MA, NH, TN, TX, VA(1)
- -----------------------------------------------------------------------------------------
3.  TeleCorp Limited Holdings, Inc.               DE          AR, DC, IL, MA, MS
- -----------------------------------------------------------------------------------------
4.  TeleCorp Realty Holdings, Inc.                DE                     None
- -----------------------------------------------------------------------------------------
5.  TeleCorp PCS, L.L.C.
    (Sole Member is: TeleCorp PCS, Inc.)          DE                     None

- -----------------------------------------------------------------------------------------
6.  TeleCorp Realty, L.L.C.                       DE          AR, DC, IL, LA, MA, MO,
    (Managing Member is: TeleCorp                             MS, NH, TN, TX
    Communications, Inc.)
- -----------------------------------------------------------------------------------------
7.  TeleCorp Equipment Leasing, L.P.              DE          AR, DC, IL, IN, LA, MA,
    (General Partner is: TeleCorp Limited                     MO, MS, NH, TN, TX
    Holdings, Inc.)
- -----------------------------------------------------------------------------------------
</TABLE>
- --------------------------
(1) TeleCorp Holding Corp will be withdrawn from each of the states in which it
is qualified (except Delaware) upon the filing of the company's tax returns for
the year ended December 31, 1998.
<PAGE>

                                                                       Exhibit A


                                    Form of
                                    -------

                     Amended and Restated Pledge Agreement
                     -------------------------------------

          AMENDED AND RESTATED PLEDGE AGREEMENT, dated ______________, 1999,
made by __________ ("Pledgor") to TeleCorp PCS, Inc., a Delaware corporation
                     -------
("Pledgee").  Capitalized terms used and not defined herein shall have the
  -------
meaning set forth in the Stock Purchase Agreement (defined below).

          WHEREAS, Pledgor and Pledgee entered into a Pledge Agreement dated
July 17, 1998 (the "Pledge Agreement");

          WHEREAS, Pledgor has entered into a Stock Purchase Agreement with
Pledgee and certain other investors identified therein, dated as ___________,
1999 (the "Stock Purchase Agreement"), pursuant to which Pledgor has agreed,
among other things, to make additional cash contributions to the Company in an
amount equal to the excess of its Aggregate Commitment over its Initial Cash
Contribution paid at Closing (the "Puerto Rico Unfunded Commitment") on the
terms and subject to the conditions thereof;

          WHEREAS, simultaneously with the execution of the Pledge Agreement,
Pledgor entered into a Securities Purchase Agreement pursuant to which Pledgor
agreed, among other things, to make Cash Equity Investor Contributions (as
defined in the Securities Purchase Agreement) to the Company on the terms and
subject to the conditions thereof;

          WHEREAS, Pledgor is the owner of ___________ shares of Series C
Preferred Stock, par value $0.01 per share, _________ shares of Class A Common
Stock, par value $0.01 per share, _________ shares of Class C Common Stock, par
value $.01 per share, and _________ shares of Class D Common Stock, par value
$.01 per share, of the Company and, upon the Supplemental Closing, shall acquire
additional shares of such Series C Preferred Stock and Common Stock
(collectively, the "Pledged Shares");
                    --------------

          WHEREAS, the Pledgee has required, as a condition to its execution and
delivery of the Stock Purchase Agreement and its consummation of the
transactions contemplated thereby, that Pledgor enter into this Amended and
Restated Pledge Agreement in order to secure Pledgor's obligation to: (i) make
capital contributions to the Company in respect of its Puerto Rico Unfunded
Commitment in accordance with the terms of Section 2.1 of the Stock Purchase
Agreement and (ii) make Cash Equity Investor Contributions in accordance with
the terms of Section 2.2 of the Securities Purchase Agreement and Section 3.10
of the Stockholders' Agreement ((i) and (ii) collectively referred to herein as
the "Unfunded Commitment Obligations");
     -------------------------------


                                     -15-
<PAGE>

          NOW, THEREFORE, in consideration of the mutual covenants herein
contained, Pledgor hereby agrees with Pledgee that the Pledge Agreement is
hereby amended and restated as follows:

          SECTION 1.  Pledge.  Pledgor hereby pledges to Pledgee, and grants to
                      ------
Pledgee a security interest in the following, whether now owned or hereafter
acquired (the "Collateral"):

    (a)  The Pledged Shares and the certificates representing the Pledged
         Shares, and all dividends, cash, instruments, securities and other
         property from time to time received, receivable or otherwise
         distributed in respect of or in exchange for any or all of the Pledged
         Shares; and

    (b)  All proceeds of any and all of the foregoing Collateral (including,
         without limitation, proceeds that constitute property of the types
         described above).

         SECTION 2.  Security for Obligations.  This Agreement secures the
                     ------------------------
Unfunded Commitment Obligations and all Pledgor's obligations under, in respect
of or in connection with this Agreement (all such obligations being referred to
hereinafter, together with the Unfunded Commitment Obligations, as the
"Obligations"). Without limiting the generality of the foregoing, this Agreement
secures the payment of all amounts that constitute part of the Obligations and
would be owned by Pledgor to Pledgee under the Stock Purchase Agreement,
Securities Purchase Agreement or Stockholders' Agreement but for the fact that
they are unenforceable or not allowable due to the existence of a bankruptcy,
reorganization or similar proceeding involving Pledgor.

        SECTION 3.  Delivery of Collateral.  All certificates or instruments
                    ----------------------
representing or evidencing the Collateral shall be delivered to and held by or
on behalf of Pledgee pursuant hereto and shall be in suitable form for transfer
by delivery, or shall be accompanied by duly executed instruments of transfer or
assignment in blank, all in form and substance satisfactory to Pledgee. Pledgee
shall have the right, at any time in its discretion and without notice to
Pledgor, to transfer to or to register in the name of Pledgee or any of its
nominees any or all of the Collateral, subject only to the rights specified in
Section 6(a); provided, that notwithstanding the foregoing, until any transfer
              --------
of beneficial ownership with respect to the Collateral pursuant to any exercise
of remedies under Section 11, Pledgor shall continue to be the beneficial owner
of the Collateral.  In addition, Pledgee shall have the right at any time to
exchange certificates or instruments representing or evidencing Collateral for
certificates or instruments of smaller or larger denominations.

        SECTION 4.  Representations and Warranties.  Pledgor represents and
                    ------------------------------
warrants as follows:

    (a)  Pledgor is the legal and beneficial owner of the presently existing
         Collateral free and clear of any Lien except for the security interest
         created by this Agreement and Liens created by the Stockholders'
         Agreement.


                                     -16-
<PAGE>

    (b)  The pledge of the Pledged Shares pursuant to this Agreement, together
         with the delivery of the Pledged Shares pursuant to Section 3, creates
         a valid ad perfected first priority security interest in the presently
         existing Collateral, securing the payment of the Obligations.

    (c)  No consent of any other Person and no authorization, approval, or other
         action by, and no notice to or filing with, any Governmental Authority
         is required (i) for the pledge by Pledgor of the Collateral pursuant to
         this Agreement or for the execution, delivery or performance of this
         Agreement by Pledgor, (ii) for the perfection or maintenance of the
         security interest created hereby (including the first priority nature
         of such security interest) or (iii) for the exercise by Pledgee of the
         voting or other rights provided for in this Agreement or the remedies
         in respect of the Collateral pursuant to this Agreement (except (x) as
         may be required in connection with any disposition of any portion of
         the Pledged Shares by laws affecting the offering and sale of
         securities generally, (y) that the consent, authorization or approval
         of the FCC may be required if the exercise of rights or remedies by
         Pledgee hereunder would result in a voluntary or involuntary assignment
         of or transfer of control of a License and (z) for the filing of
         financing statements pursuant to the Code (as defined below) with
         respect to Collateral).

        SECTION 5.  Further Assurances.  Pledgor agrees that at any time and
                    ------------------
from time to time, at the expense of Pledgor, Pledgor will promptly execute and
deliver all further instruments and documents, and take all further action, that
may be necessary, or that Pledgee may reasonably request, in order to perfect
and protect any security interest granted or purported to be granted hereby or
to enable Pledgee to exercise and enforce its rights and remedies hereunder with
respect to any Collateral, including, without limitation, all action specified
in Section 13.

SECTION 6.  Voting Rights; Dividends; Etc.
            -----------------------------
     (a)  Unless and until Pledgor shall fail to pay in full within 35 days of
          the due date any of the Unfunded Commitment Obligations:

          (i)  Pledgor shall be entitled to exercise or refrain from exercising
                  any and all voting and other consensual rights pertaining to
                  the Collateral or any part thereof for any purpose not
                  inconsistent with the terms of this Agreement or the
                  Stockholders' Agreement.

          (ii) Pledgor shall be entitled to receive and retain any and all
                  dividends and interest, cash, instruments and other property
                  paid in respect of the Collateral, provided that any and all
                                                     --------
               (1)  dividends and interest paid or payable other than in cash in

                                     -17-
<PAGE>

                        respect of, and instruments and other property received,
                        receivable or otherwise distributed in respect of, or in
                        exchange for, any Collateral,

               (2)  dividends and other distributions paid or payable in cash in
                        respect of any Collateral in connection with a partial
                        or total liquidation or dissolution or in connection
                        with a reduction of capital, capital surplus or paid-in-
                        surplus, and

               (3)  cash paid, payable or otherwise distributed in respect of
                        principal of, or in redemption of, or in exchange for,
                        any Collateral,

shall be, and shall be forthwith delivered to Pledgee to hold as, Collateral and
shall, if received by Pledgor, be received in trust for the benefit of Pledgee,
be segregated from the other property or funds of Pledgor, and be forthwith
delivered to Pledgee as Collateral in the same form as so received (with any
necessary endorsement or assignment).

     (b)  In the event that Pledgor shall fail to pay in full within 35 days of
          the due date any of the Unfunded Commitment Obligations:

          (i)  All rights of Pledgor to exercise or refrain from exercising the
                  voting and other consensual rights which it would otherwise be
                  entitled to exercise pursuant to Section 6(a)(i), and to
                  receive the dividends, interest, cash, instruments and other
                  property which it would otherwise be authorized to receive and
                  retain pursuant to Section 6(a)(ii), shall cease, and all such
                  rights shall thereupon become vested in Pledgee who shall
                  thereupon have the sole right to exercise or refrain from
                  exercising such voting and other consensual rights and to
                  receive and hold as Collateral such dividends and interest
                  payments.

         (ii)  All dividends ad interest payments that are received by Pledgor
                  contrary to Section 6(b)(i) shall be received in trust for the
                  benefit of Pledgee, shall be segregated from other funds of
                  Pledgor and shall be forthwith paid over to Pledgee as
                  Collateral in the same form as so received (with any necessary
                  endorsements or assignment).

     (c)  Pledgor shall execute and deliver (or cause to be executed and
          delivered) to Pledgee all such proxies and other instruments as
          Pledgee may reasonably request for the purpose of enabling Pledgee to
          exercise the voting and other rights which it is entitled to exercise
          pursuant to Section 5(b)(i) above and to receive the dividends or
          interest payments that it is authorized to receive and retain pursuant
          to Sections 6(a)(ii) and 6(b)(ii) .


                                     -18-
<PAGE>

        SECTION 7.  Transfer Restriction.  Pledgor shall not Transfer (as such
                    --------------------
term is defined in the Stockholders' Agreement) any Pledged Shares or other
Collateral to any Person, unless this Pledge Agreement remains in effect with
respect to all of the Collateral (if any) other than the Collateral being
Transferred and concurrently with such Transfer the transferee pledges all of
the transferred Collateral in favor of the Company pursuant to a pledge
agreement in the form of this Pledge Agreement. The Pledgee shall release the
security interest created by this Agreement to the extent necessary in order to
facilitate any Transfer complying with the terms of this Section 7.

        SECTION 8.  Pledgee Appointed Attorney-in-Fact.  If at any time the
                    ----------------------------------
Pledgor shall fail to pay in full within 35 days of the due date any of its
Unfunded Commitment Obligations, Pledgee shall automatically and without further
action become Pledgor's attorney-in-fact, with full authority in the place an
stead of Pledgor and in the name of Pledgor or otherwise, from time to time in
Pledgee's discretion to take any action and to execute any instrument which
Pledgee may deem necessary or advisable to accomplish the purposes of this
Agreement (subject to the rights of Pledgor under Section 6), including, without
limitation, to receive, endorse and collect all instruments made payable to
Pledgor representing any dividend, interest payment or other distribution in
respect of the Collateral or any part thereof and to give full discharge for the
same.

        SECTION 9.  Pledgee May Perform.  If Pledgor fails to perform any
                    -------------------
agreement contained herein, Pledgee may itself perform, or cause performance of,
such agreement, and the expenses of Pledgee incurred in connection therewith
shall be payable by Pledgor under Section 12.

        SECTION 10.  Pledgee's Duties.  The powers conferred on Pledgee
                     ----------------
hereunder are solely to protect its interest in the Collateral and shall not
impose any duty upon it to exercise any such powers. Except for the reasonable
care in the custody and preservation of any Collateral in its possession and the
accounting for monies and other instruments and property actually received by it
hereunder, Pledgee shall have not duty as to any Collateral, as to ascertaining
or taking action with respect to calls, conversions, exchanges, maturities,
tenders or other matters relative to any Collateral, whether or not Pledgee has
or is deemed to have knowledge of such matters, or as to the taking of any
necessary steps to preserve rights against any parties or any other rights
pertaining to any Collateral. Pledgee shall be deemed to have exercised
reasonable care in the custody and preservation of any Collateral in its
possession if such Collateral is accorded treatment substantially equal to that
which Pledgee accords its own property.

        SECTION 11. Remedies Upon Default. In the event that Pledgor shall fail
                    ---------------------
to pay in full within 35 days of the due date any of its Obligations:

    (a)  Pledgee may exercise in respect of the Collateral, in addition to other
         rights and remedies provided for herein or otherwise available to it,
         all the rights and remedies of a secured party on default under the
         Uniform Commercial Code in effect in the State of New York at that time
         (the "Code") (whether or not the Code applies to the affected
               ----
         Collateral), and


                                     -19-
<PAGE>

         may also, without notice except as specified below, sell the Collateral
         or any part thereof in one or more parcels at public or private sale,
         at any exchange, broker's board or at any of Pledgee's offices or
         elsewhere, for cash, on credit or for future delivery, and upon such
         other terms as Pledgee may deem commercially reasonable. Pledgor agrees
         that, to the extent notice of sale shall be required by law, at least
         ten days' notice to Pledgor of the time and place of any public sale or
         the time after which any private sale is to be made shall constitute
         reasonable notification. Pledgee shall not be obligated to make any
         sale of Collateral regardless of notice of sale having been given.
         Pledgee may adjourn any public or private sale from time to time by
         announcement at the time and place fixed therefor, and such sale may,
         without further notice, be made at the time and place to which it was
         so adjourned.

    (b)  Any cash held by Pledgee as Collateral and all cash proceeds received
         by Pledgee in respect of any sale of, collection from, or other
         realization upon all or any part of the Collateral may, in the
         discretion of Pledgee, be held by Pledgee as collateral for, and/or
         then or at any time thereafter be applied (after payment of any amounts
         payable to Pledgee pursuant to Section 12) in whole or in part by
         Pledgee against, all or any part of the Obligations then due. Any
         surplus of such cash or cash proceeds held by Pledgee and remaining
         after payment in full of all the Obligations shall be paid over to
         Pledgor.

         SECTION 12.  Interest and Expenses.  In the event that Pledgor shall
                      ---------------------
fail to pay in full within 35 days of the due date any of the Unfunded
Commitment Obligations, it will upon demand pay to Pledgee (a) in respect of the
period commencing on the date of such payment default and ending on the date its
Unfunded Commitment Obligations equals zero, interest (computed on the basis of
a 360-day year of twelve 30-day months) on the aggregate amount of its Unfunded
Commitment Obligations at a fluctuating rate per annum equal to the Company's
borrowing rate under the Credit Agreement, plus four percent (4%), provided that
in no event shall the Pledgor be obligated to pay interest in excess of the
maximum interest rate permitted under applicable law, and (b) the amount of all
reasonable expenses, including the reasonable fees and expenses of its counsel
and of any experts and agents, that Pledgee may incur in connection with (i) the
administration of this Agreement, (ii) the custody or preservation of, or the
sale of, collection from, or other realization upon, any of the Collateral,
(iii) the exercise or enforcement of any of the rights of Pledgee hereunder or
(iv) the failure by Pledgor to perform or observe any of the provisions hereof.

        SECTION 13.  Amendments, Etc.  No amendment or waiver of any provision
                     ---------------
of this Agreement, and no consent to any departure by Pledgor here from, shall
in any event be effective unless the same shall be in writing and signed by
Pledgee and then such waiver or consent shall be effective only in the specific
instance and for the specific purpose for which given.

                                     -20-
<PAGE>

        SECTION 14.  Notices.  All notices and other communications provided for
                     -------
hereunder shall be in writing and shall be delivered by hand, by nationally
recognized overnight courier or by facsimile transmission, in each case to the
address for the recipient specified in the Stock Purchase Agreement.  All such
notices and other communications shall be effective upon delivery or upon
facsimile transmission, when confirmed by return facsimile transmission.

        SECTION 15.  Continuing Security Interest
                     ----------------------------
   (a)  This Agreement shall create a continuing security interest in the
        Collateral and shall (a) remain in full force and effect until the date
        Pledgor's Unfunded Commitment equals zero, or, if Pledgor shall have
        failed to pay in full when due any of the Unfunded Commitment
        Obligations, the later of such date and the date it has paid in full in
        cash all of the Obligations, (b) be binding upon Pledgor, it successors
        and assigns, and (c) inure, together with the rights and remedies of
        Pledgee hereunder, to the benefit of, and be enforceable by, Pledgee and
        its successors.

   (b)  Pledgee agrees to release the Collateral upon deposit by Pledgor into a
        cash collateral account in favor of Pledgee, the terms of which cash
        collateral account shall be acceptable to Pledgee in its sole
        discretion, the aggregate amount of the cash equal to Pledgor's
        remaining Unfunded Commitment Obligations.

        SECTION 16.  Release and Termination.  Upon the date the amount of
                     -----------------------
Pledgor's Unfunded Commitment Obligations equals zero, or, if Pledgor shall have
failed to pay in full when due any of the Unfunded Commitment Obligations, the
later of such date and the date it has paid in full in cash all of the
Obligations, the security interest granted hereby shall terminate and all rights
to the Collateral shall revert to Pledgor. Upon any such termination, Pledgee
will, at Pledgor's expense release to Pledgor all Collateral then held by it and
execute and deliver to Pledgor such documents as Pledgor shall reasonably
request to evidence such termination.

        SECTION 17.  Governing Law; Terms.  This Agreement shall be governed
                     --------------------
by, and construed in accordance with, the laws of the State of New York, except
as required by mandatory provisions of law and except to the extent that the
validity or perfection of the security interest hereunder, or remedies
hereunder, in respect of any particular Collateral are governed by the laws of a
jurisdiction other than the State of New York. Unless otherwise defined herein
or in the Stock Purchase Agreement, terms defined in Article 9 of the Code are
used herein as therein defined.

  [THE REMAINDER OF THIS PAGE IS INTENTIONALLY LEFT BLANK]

                                     -21-

<PAGE>

        IN WITNESS WHEREOF, Pledgor has caused this Agreement to be duly
executed and delivered by its officers thereunto duly authorized as of the date
first above written.

                                    [NAME]



                                    By:  _________________________
                                         Name:
                                         Title:


Agreed and Accepted:


TELECORP PCS, INC.


By:  _________________________
    Name:
    Title:
<PAGE>

                                                                       Exhibit B

                             Form of Series E Note
                             ---------------------


See Attachment hereto.
<PAGE>

                                                                  DRAFT 03/03/99

THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE
"SECURITIES ACT"), OR ANY STATE SECURITIES LAWS.  NEITHER THIS NOTE NOR ANY
INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED,
PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION
OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, REGISTRATION.

THE HOLDER OF THIS NOTE, BY ITS ACCEPTANCE HEREOF, AGREES TO OFFER, SELL OR
OTHERWISE TRANSFER SUCH NOTE, PRIOR TO THE DATE (THE "RESALE RESTRICTION
TERMINATION DATE") WHICH IS TWO YEARS AFTER THE LATER OF THE ORIGINAL ISSUE DATE
HEREOF AND THE LAST DATE ON WHICH THE ISSUER OR ANY AFFILIATE OF THE ISSUER WAS
THE OWNER OF THIS NOTE (OR ANY PREDECESSOR OF SUCH NOTE), ONLY (A) TO THE
COMPANY, (B) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN DECLARED
EFFECTIVE UNDER THE SECURITIES ACT, (C) FOR SO LONG AS THE NOTES ARE ELIGIBLE
FOR RESALE PURSUANT TO RULE 144A UNDER THE SECURITIES ACT, TO A PERSON IT
REASONABLY BELIEVES IS A "QUALIFIED INSTITUTIONAL BUYER" AS DEFINED IN RULE 144A
THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED
INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN
RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS AND SALES THAT OCCUR OUTSIDE THE
UNITED STATES WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES ACT, (E)
TO AN INSTITUTIONAL "ACCREDITED INVESTOR" WITHIN THE MEANING OF RULE 501(a)(1),
(2), (3) OR (7) UNDER THE SECURITIES ACT THAT IS ACQUIRING THE NOTE FOR ITS OWN
ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN INSTITUTIONAL ACCREDITED INVESTOR FOR
INVESTMENT PURPOSES AND NOT WITH A VIEW TO OR FOR OFFER OR SALE IN CONNECTION
WITH ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, OR (F) PURSUANT TO
ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES
ACT, SUBJECT TO THE ISSUER'S AND THE TRUSTEE'S RIGHT PRIOR TO ANY SUCH OFFER,
SALE OR TRANSFER PURSUANT TO CLAUSE (D), (E) OR (F) TO REQUIRE CERTIFICATION
AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM AND, IN THE CASE OF THE
FOREGOING CLAUSE (D), A CERTIFICATE OF TRANSFER IN THE FORM APPEARING ON THE
OTHER SIDE OF THIS SECURITY COMPLETED AND DELIVERED BY THE TRANSFEROR TO THE
ISSUER AND THE TRUSTEE. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE
HOLDER AFTER THE RESALE RESTRICTION TERMINATION DATE.

THIS NOTE MAY NOT BE TRANSFERRED, OTHER THAN TO AN INSTITUTIONAL HOLDER,
PRIOR TO THE EARLIER OF 6 MONTHS AFTER THE CONSUMMATION OF THE COMPANY'S INITIAL
HIGH YIELD OFFERING AND SEPTEMBER 30, 2000.
<PAGE>

                               TELECORP PCS, INC.


              ___% Senior Subordinated Notes due _______, Series E

                                                   [CUSIP No.]: ________

No. __________                                          $

      TELECORP PCS, INC., a Delaware corporation (the "Company," which term
includes any successor corporation), for value received, promises to pay to
______________ or registered assigns the principal sum of               Dollars
($       ), on the earlier of (i) the final maturity date of the Company's
initial Qualifying High Yield Offering and (ii) December 30, 2009.

Interest Payment Dates: on each six month and annual anniversary of the Issue
Date, commencing on ____, 1999.

     Reference is made to the further provisions of this Note contained herein,
which will for all purposes have the same effect as if set forth at this place.

     IN WITNESS WHEREOF, the Company has caused this Note to be signed manually
or by facsimile by its duly authorized officer.

                                    TELECORP PCS, INC.


                                    By: __________________________
                                       Name:
                                       Title:

                                    By:___________________________
                                       Name:
                                       Title:
Dated:  _______
<PAGE>

     This is one of the ___% Senior Subordinated Notes due  _____, Series E,
described in the within-mentioned Indenture.

Dated:   _______

                              [__________________,]
                              as Trustee


                              By:______________________________
                                  Authorized Signatory
<PAGE>

                               (REVERSE OF NOTE)

                               TELECORP PCS, INC.

               __% Senior Subordinated Notes due _____, Series E

1.   INTEREST.

     TELECORP PCS,  INC. promises to pay interest on the principal amount of
this Note at the rate per annum set forth in Section 2.01(b) of the Third
Supplemental Indenture (as defined below).  Cash interest on the Notes will
accrue from the most recent date to which interest has been paid or, if no
interest has been paid, from the Issue Date.  The Company will pay interest in
cash semi-annually in arrears on each Interest Payment Date, commencing on _____
___,  2004; provided, that any interest accrued prior thereto due and owing on
            --------
any Interest Payment Date and, if payment in cash shall thereafter be prohibited
by the terms of the Senior Credit Facilities, interest accrued thereafter, may
be paid by issuance of a _____% Senior Subordinated Note due _______, Series E
substantially in the form of this Note in the principal amount of such accrued
interest.  Interest will be computed on the basis of a 360-day year of twelve
30-day months.

     The Company shall pay interest on overdue principal from time to time on
demand and on overdue installments of interest (without regard to any applicable
grace periods) to the extent lawful from time to time on demand, in each case at
the rate equal to 2% per annum in excess of the rate of interest otherwise
payable under the Third Supplemental Indenture.

2.   METHOD OF PAYMENT.

     The Company shall pay interest on the Notes (except defaulted interest) to
the persons who are the registered Holders at the close of business on the
business day immediately preceding the Interest Payment Date even if the Notes
are canceled on registration of transfer or registration of exchange after such
business day. Holders must surrender the Notes to a Paying Agent to collect
principal payments. The Company shall pay principal and interest in money of the
United States that at the time of payment is legal tender for payment of public
and private debts ("U.S. Legal Tender"). However, the Company may pay principal
and interest by wire transfer of Federal funds (provided that the Paying Agent
shall have received wire instructions on or prior to the relevant Interest
Payment Date), or interest by check payable in such U.S. Legal Tender. The
Company may deliver any such interest payment to the Paying Agent or to a Holder
at the Holder's registered address.

3.   PAYING AGENT AND REGISTRAR.

     Initially, the Trustee will act as Paying Agent and Registrar.  The Company
may change any Paying Agent or Registrar without notice to the Holders.  The
Company may, subject to certain exceptions, act as Paying Agent and Registrar.
<PAGE>

4.   INDENTURE.

     The Company issued the Notes under an Indenture, dated as of ________ ___,
1999 (the "Base Indenture"), between the Company and  the Trustee as
supplemented by a Third Supplemental Indenture, dated as of _______ ___, 1999
(the "Third Supplemental Indenture"), among the Company and the Trustee (the
Base Indenture and the Third Supplemental Indenture are referred to herein as
the "Indenture"). Capitalized terms herein are used as defined in the Indenture
unless otherwise defined herein. This Note is one of a duly authorized issue of
notes of the Company designated as its ___% Senior Subordinated Notes due
______, Series E (such Series E Notes being referred to herein as the "Notes"),
which may be issued under the Indenture.   The terms of the Notes include those
stated in the Indenture and those made part of the Indenture by reference to the
Trust Indenture Act of 1939 (15 U.S.C. Sections 77aaa-77bbbb) (the "TIA"), as in
effect on the date of the Indenture (except as otherwise indicated in the
Indenture) until such time as the Indenture is qualified under the TIA, and
thereafter as in effect on the date on which the Indenture is qualified under
the TIA. Notwithstanding anything to the contrary herein, the Notes are subject
to all such terms, and holders of Notes are referred to the Indenture and the
TIA for a statement of them. The Notes are general unsecured obligations of the
Company.

Payment on the Notes is guaranteed (each a "Guarantee") on a subordinated basis,
jointly and severally, by  each Restricted Subsidiary of the Company (each, a
"Guarantor") that guarantees the Notes pursuant to the terms of the Indenture.

5.   SUBORDINATION.

     The Notes are subordinated in right of payment to the Senior Debt of the
Company to the extent and in the manner provided in the Indenture.  Each Holder
of a Note, by accepting a Note, agrees to such subordination, authorizes the
Trustee to give effect to such subordination and appoints the Trustee as
attorney-in-fact for such purpose.

6.   OPTIONAL REDEMPTION.

     The Company has the right (but not the obligation) to effect optional
redemption of the Notes pursuant to Section 3.01 of the Third Supplemental
Indenture and has the right (but not the obligation) to repurchase up to 35% of
the aggregate principal amount of the Notes, subject to the conditions set forth
in Section 3.04 of the Third Supplemental Indenture.  If any Note is to be
redeemed in part only, the notice of redemption that relates to such Note shall
state the portion of the principal amount thereof to be redeemed. A new Note in
a principal amount equal to the unredeemed portion thereof will be issued in the
name of the Holder thereof upon cancellation of the original Note. On and after
the Redemption Date, interest will cease to accrue on Notes or portions thereof
called for redemption so long as the Company has deposited with the Paying Agent
for the Notes funds in satisfaction of the redemption price pursuant to the
Indenture and the Paying Agent is not prohibited from paying such funds to the
Holders pursuant to the terms of the Indenture.
<PAGE>

7.   CHANGE OF CONTROL OFFER.

     Following the occurrence of a Change of Control (the date of such
occurrence being the "Change of Control Date"), the Company shall, within 30
days after the Change of Control Date, make an Offer to Purchase all Notes then
outstanding at a purchase price in cash equal to 101% of the aggregate principal
amount thereof, plus accrued and unpaid interest thereon, if any, to the
Purchase Date (subject to the right of Holders to receive interest due on the
relevant Interest Payment Date).

8.   LIMITATION ON DISPOSITION OF ASSETS.

     The Company is, subject to certain conditions and certain exceptions,
obligated to make an Offer to Purchase Notes at a purchase price equal to 100%
of the principal amount thereof, plus accrued and unpaid interest thereon, if
any, to the Purchase Date (subject to the right of Holders to receive interest
due on the relevant Interest Payment Date) with the proceeds of certain Asset
Dispositions as set forth in Section 4.05 of the Base Indenture.

9.   DENOMINATIONS; TRANSFER; EXCHANGE.

     The Notes are in registered form, without coupons, in denominations of
[$______] and integral multiples of [$______].  A Holder shall register the
transfer or exchange of Notes in accordance with the Indenture. The Registrar
may require a Holder, among other things, to furnish appropriate endorsements
and transfer documents and to pay certain transfer taxes or similar governmental
charges payable in connection therewith as permitted by the Indenture. The
Registrar need not register the transfer of or exchange any Notes or portions
thereof selected for redemption, except the unredeemed portion of any Note being
redeemed in part.

10.  PERSONS DEEMED OWNERS.

     The registered Holder of a Note shall be treated as the owner of it for all
purposes.

11.  UNCLAIMED FUNDS.

     If funds for the payment of principal or interest remain unclaimed for two
years, the Trustee and the Paying Agent will repay the funds to the Company at
their written request. After that, all liability of the Trustee and such Paying
Agent with respect to such funds shall cease.

12.  LEGAL DEFEASANCE AND COVENANT DEFEASANCE.

     The Company and the Guarantors may be discharged from their obligations
under the Indenture, the Guarantees and the Notes, except for certain provisions
thereof, and may be discharged from obligations to comply with certain covenants
contained in the Indenture, the Guarantees and the Notes, in each case, upon
satisfaction of certain conditions specified in the Indenture.
<PAGE>

13.  AMENDMENT; SUPPLEMENT; WAIVER.

     Subject to certain exceptions, the Indenture, the Guarantees and the Notes
may be amended or supplemented with the written consent of the Holders of at
least a majority in aggregate principal amount of the Notes of all series then
outstanding, and any existing Default or Event of Default or compliance with any
provision may be waived with the consent of the Holders of a majority in
aggregate principal amount of the Notes then outstanding; provided that if there
                                                          --------
shall be notes of more than one series outstanding and if the proposed action to
be taken will materially adversely affect the rights of holders of Notes of one
or more of such series, then the consent only of Holders of a majority in
aggregate principal amount (or, if provided in the Supplemental Indentures with
respect to more than one series of the Notes, Holders of not less than a
majority in aggregate principal amount of the Notes issued under such multiple
series) of outstanding Notes of each series so affected shall be required.
Without notice to or consent of any Holder, the parties thereto may amend or
supplement the Indenture, the Guarantees and the Notes to, among other things,
cure any ambiguity, defect or inconsistency, provide for uncertificated Notes in
addition to or in place of certificated Notes or comply with any requirements of
the SEC in connection with the qualification of the Indenture under the TIA, or
make any other change that does not materially adversely affect the rights of
any Holder of a Note.

14.  RESTRICTIVE COVENANTS.

     The Indenture contains certain covenants that, among other things, limit
the ability of the Company and the Restricted Subsidiaries to make restricted
payments, to incur indebtedness, to create liens, to sell assets, to permit
restrictions on dividends and other payments by Restricted Subsidiaries to the
Company, to consolidate, merge or sell all or substantially all its assets and
to engage in transactions with affiliates.  The limitations are subject to a
number of important qualifications and exceptions.  The Company must report
quarterly to the Trustee on compliance with such limitations.

15.  DEFAULTS AND REMEDIES.

     If an Event of Default occurs and is continuing, the Trustee or the Holders
of at least 25% in aggregate principal amount of Notes then outstanding may
declare all the Notes to be due and payable immediately in the manner and with
the effect provided in the Indenture.  Holders of Notes may not enforce the
Indenture, the Guarantees or the Notes except as provided in the Indenture.  The
Trustee is not obligated to enforce the Indenture, the Guarantees or the Notes
unless it has received an indemnity reasonably satisfactory to it.  The
Indenture permits, subject to certain limitations therein provided, Holders of a
majority in aggregate principal amount of the Notes then outstanding to direct
the Trustee in its exercise of any trust or power.  The Trustee may withhold
from Holders of Notes notice of certain continuing Defaults or Events of Default
if it determines that withholding notice is in their interest.
<PAGE>

16.  TRUSTEE DEALINGS WITH COMPANY.

     The Trustee under the Indenture, in its individual or any other capacity,
may become the owner or pledgee of Notes and may otherwise deal with the
Company, the Guarantors, their respective Subsidiaries or their respective
Affiliates as if it were not the Trustee.

17.  NO RECOURSE AGAINST OTHERS.

     No director, officer, employee, incorporator or stockholder of the Company
or any Guarantor, as such, shall have any liability for any obligations of the
Company or any Guarantor under the Notes or the Guarantees, as the case may be,
or  the Indenture or for any claim based on, in respect of, or by reason of,
such obligations or their creation.  Each Holder by accepting a Note waives and
releases all such liability.  The waiver and release are part of the
consideration for the issuance of the Notes and the Guarantees.

18.  AUTHENTICATION.

     This Note shall not be valid until the Trustee or authenticating agent
signs the certificate of authentication on this Note.

19.  ABBREVIATIONS AND DEFINED TERMS.

     Customary abbreviations may be used in the name of a Holder of a Note or an
assignee, such as: TEN COM (= tenants in common), TEN ENT (= tenants by the
entireties), JT TEN (= joint tenants with right of survivorship and not as
tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts to Minors
Act). ).

20.  RESTRICTION ON REMARKETING.

     This Note may not be transferred, other than to an Institutional Holder,
prior to the earlier of 6 months after the consummation of the Company's initial
High Yield Offering and September 30, 2000.

21.  [CUSIP NUMBERS.]

     [Pursuant to a recommendation promulgated by the Committee on Uniform
Security Identification Procedures, the Company has caused CUSIP numbers to be
printed on the Notes as a convenience to the Holders of the Notes. No
representation is made as to the accuracy of such numbers as printed on the
Notes and reliance may be placed only on the other identification numbers
printed hereon.]
<PAGE>

22.  GOVERNING LAW.

     The laws of the State of New York shall govern the Indenture and this Note
without regard to principles of conflicts of laws to the extent that the
application of the laws of another jurisdiction would be required thereby.

23.  CONFLICT.

     In the event of an express and irreconcilable conflict between this Note
and the Indenture, the terms of the Indenture shall govern.
<PAGE>

                [FORM OF NOTATION ON NOTE RELATING TO GUARANTEE]
                         SENIOR SUBORDINATED GUARANTEE


     The Guarantor(s) (as defined in the Third Supplemental Indenture referred
to in the Note upon which this notation is endorsed) hereby, jointly and
severally, unconditionally guarantee on a senior subordinated basis (such
guarantee by each Guarantor being referred to herein as the "Guarantee") the due
and punctual payment of the principal of, premium, if any, and interest on the
Notes, whether at maturity, by acceleration or otherwise, the due and punctual
payment of interest on the overdue principal, premium and interest, if any, on
the Notes, and the due and punctual performance of all other obligations of the
Company to the Holders or the Trustee, all in accordance with the terms set
forth in Article 9 of the Third Supplemental Indenture.

     The obligations of each Guarantor to the Holders and to the Trustee
pursuant to the Guarantee, the Indenture and  the Third Supplemental Indenture
are expressly set forth, and are expressly subordinated and subject in right of
payment to the prior payment in full of all Designated Senior Debt, to the
extent and in the manner provided in Article 10 of the Third Supplemental
Indenture, and reference is hereby made to such Third Supplemental Indenture for
the precise terms of the Guarantee therein made.

     The Guarantee shall not be valid or obligatory for any purpose until the
certificate of authentication on the Notes upon  which the Guarantee is noted
shall have been executed by the Trustee under the Indenture by the manual
signature of one or more of its authorized officers.

     This Guarantee shall be governed by and construed in accordance with the
laws of the State of New York without regard to principles of conflicts of law.

     This Guarantee is subject to release upon the terms set forth in the Third
Supplemental Indenture.


                                         [GUARANTORS]



           By:__________________________
                                           Name:
                                           Title:
<PAGE>

                                                                       Exhibit C

                        Form of Series E Note Indenture
                        -------------------------------


See Attachment hereto.
<PAGE>

                               TABLE OF CONTENTS
<TABLE>
<C>                     <S>                                                                                 <C>
ARTICLE I               DEFINITIONS.......................................................................     2
ARTICLE II              CONTRIBUTIONS; PURCHASE AND SALE OF SECURITIES; CERTAIN RESTRICTIONS ON TRANSFER..     8
                  2.1.  Cash Equity Investor and Management Stockholder Contributions.....................     8
                  2.2.  Purchase and Sale of Securities at Closing........................................     9
                  2.3.  Management Stockholder Contribution...............................................     9
                  2.4.  Management Benefit Plan...........................................................     9
                  2.5.  Restrictive Legends...............................................................     9
                  2.6.  Participation in Note Purchase....................................................    10
                  2.7.  Use of Proceeds...................................................................    10
ARTICLE III             CLOSING...........................................................................    10
                  3.1.  Time and Place of Closing.........................................................    11
                  3.2.  Closing Actions and Deliveries....................................................    11
                  3.3.  Closing Costs; Taxes and Fees.....................................................    11
ARTICLE IV              REPRESENTATIONS AND WARRANTIES OF PURCHASERS AND MANAGEMENT STOCKHOLDERS..........    12
                  4.1.  Organization, Power and Authority.................................................    12
                  4.2.  Consents; No Conflicts............................................................    13
                  4.3.  Litigation........................................................................    13
                  4.4.  FCC Compliance....................................................................    13
                  4.5.  Brokers...........................................................................    13
                  4.6.  Capital Commitment................................................................    13
                  4.7.  No Distribution...................................................................    13
                  4.8.  Investor Acknowledgments..........................................................    14
ARTICLE V               REPRESENTATIONS AND WARRANTIES OF THE COMPANY AND ACQUISITION CORP................    15
                  5.1.  Organization, Power and Authority.................................................    15
                  5.2.  Consents; No Conflicts............................................................    16
                  5.3.  Litigation........................................................................    16
                  5.4.  FCC Compliance....................................................................    16
                  5.5.  Brokers...........................................................................    16
</TABLE>

                                       i
<PAGE>

<TABLE>
<S>              <C>                                                                                       <C>
                  5.6.  Capitalization....................................................................    17
                  5.7.  Shares............................................................................    17
                  5.8.  Offering of Securities............................................................    17
                  5.9.  Subsidiaries......................................................................    18
                 5.10.  Small Business Matters............................................................    18
ARTICLE VI              COVENANTS.........................................................................    18
                  6.1.  Consummation of Transactions......................................................    18
                  6.2.  Use of Proceeds...................................................................    19
                  6.3.  SBIC Regulatory Provisions........................................................    19
                  6.4.  Regulatory Compliance Cooperation.................................................    19
                  6.5.  Related Agreement Amendments; Amendments to Restated Certificate..................    20
                  6.6.  Offering of Securities............................................................    20
                  6.7.  Waiver of Preemptive Rights.......................................................    20
ARTICLE VII             CLOSING CONDITIONS................................................................    20
                  7.1.  Conditions to Obligations of All Parties..........................................    20
                  7.2.  Conditions to Obligations of the Company..........................................    22
                  7.3.  Conditions to the Obligations of the Cash Equity Investors........................    22
ARTICLE VIII            SURVIVAL AND INDEMNIFICATION......................................................    24
                  8.1.  Survival..........................................................................    24
                  8.2.  Indemnification by the Cash Equity Investors......................................    24
                  8.3.  Indemnification by the Management Stockholders....................................    24
                  8.4.  Indemnification by the Company....................................................    25
                  8.5.  Procedures........................................................................    25
                  8.6.  Registration Rights...............................................................    26
                  8.7.  Limit on Indemnity................................................................    26
ARTICLE IX              TERMINATION.......................................................................    27
                  9.1.  Termination.......................................................................    27
                  9.2.  Effect of Termination.............................................................    27
ARTICLE X               MISCELLANEOUS PROVISIONS..........................................................    27
                 10.1.  Amendment and Modification........................................................    27
                 10.2.  Waiver of Compliance; Consents....................................................    27
                 10.3.  Notices...........................................................................    28
</TABLE>

                                      ii
<PAGE>

<TABLE>
<S>              <C>    <C>                                                                                   <C>
                 10.4.  Expenses..........................................................................    28
                 10.5.  Parties in Interest; Assignment...................................................    29
                 10.6.  Applicable Law....................................................................    29
                 10.7.  Counterparts......................................................................    29
                 10.8.  Interpretation....................................................................    29
                 10.9.  Entire Agreement..................................................................    29
                 10.10. Publicity.........................................................................    30
                 10.11. Specific Performance..............................................................    30
                 10.12. Remedies Cumulative...............................................................    30
                 10.13. Severability......................................................................    30
                 10.14. Beneficiaries of Agreement........................................................    30
                 10.15. F Block Joint Ventures............................................................    30
 </TABLE>

                                      iii
<PAGE>

<TABLE>
<S>                <C> <C>
SCHEDULES

Schedule I         -   Cash Equity Investors
Schedule II        -   Management Stockholders
Schedule III       -   Equity Issued to Cash Equity Investors
Schedule III(a)    -   Cash Equity Investors Funding Schedule
Schedule III(b)    -   Equity Issued to, and Funding Commitment of, Management Stockholders
Schedule IV        -   Capitalization

Schedule 4.2       -   Cash Equity Investor Consents
Schedule 4.4       -   Attributable Interests
Schedule 5.2       -   Company Consents
Schedule 5.6       -   Outstanding Options, Warrants, etc.
Schedule 5.9       -   Subsidiaries

EXHIBITS

Exhibit A          -   Form of Pledge Agreement
Exhibit B          -   Form of Series E Note
Exhibit C          -   Form of Series E Note Indenture
Exhibit D          -   Summary of Principal Terms

</TABLE>
<PAGE>

                                                                    Draft 3/3/99
================================================================================



                                     THIRD

                            SUPPLEMENTAL INDENTURE

                              TELECORP PCS, INC.

                                      To

                       ________________________, Trustee

                        Dated as of _____________, 1999

                                SERIES E NOTES,

           Supplemental to Indenture Dated as of _____________, 1999


================================================================================
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- -------------------------------------------------------------------------------

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                                PAGE
<S>                          <C>                                                                                                <C>
ARTICLE I                    DEFINITIONS AND INCORPORATION BY REFERENCE.............................................               2

     SECTION 1.1             Terms Incorporated by Reference........................................................               2

     SECTION 1.2             Additional Definitions.................................................................               2

     SECTION 1.3             Other Definitions......................................................................               7

ARTICLE II                   THE NOTES..............................................................................               8

     SECTION 2.1             Terms of Series E Notes................................................................               8

     SECTION 2.2             Execution and Authentication...........................................................              10

ARTICLE III                  PREPAYMENTS AND MANDATORY REDEMPTIONS..................................................              10

     SECTION 3.1             Optional Prepayments...................................................................              10

     SECTION 3.2             Premium................................................................................              11

     SECTION 3.3             Mandatory Redemption of Series E Notes.................................................              11

     SECTION 3.4             Optional Redemption Upon Equity Issuance...............................................              12

     SECTION 3.5             Acquisition of Notes...................................................................              12

ARTICLE IV                   SUPPLEMENTARY COVENANTS................................................................              12

     SECTION 4.1             Limitation on Transactions with Affiliates.............................................              12

     SECTION 4.2             Limitation on Incurrence of Indebtedness...............................................              13

     SECTION 4.3             Limitation on Restricted Payments......................................................              15

     SECTION 4.4             Payment of Taxes and Other Claims......................................................              18

     SECTION 4.5             Notice of Defaults.....................................................................              19

     SECTION 4.6             Maintenance of Properties..............................................................              19

     SECTION 4.7             Compliance Certificate.................................................................              19

     SECTION 4.8             Provision of Financial Information.....................................................              20

     SECTION 4.9             Waiver of Stay, Extension or Usury Laws................................................              20

     SECTION 4.10            Limitation on Layered Debt.............................................................              20

     SECTION 4.11            Limitation on Restrictions Affecting Restricted Subsidiaries...........................              21

</TABLE>
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

<TABLE>
<S>                          <C>                                                                                                <C>
     SECTION 4.12            Limitation on Liens....................................................................              21

     SECTION 4.13            Subsidiary Guarantees..................................................................              22

     SECTION 4.14            Limitation on Activities of the Company and the Restricted Subsidiaries................              23

     SECTION 4.15            Amendments to Agreements...............................................................              23

ARTICLE V                    EVENTS OF DEFAULT......................................................................              23

     SECTION 5.1             Events of Default......................................................................              23

ARTICLE VI                   SUBORDINATION..........................................................................              24

     SECTION 6.1             Series E Notes Subordinate to Senior Debt..............................................              24

     SECTION 6.2             Payment of Proceeds Upon Dissolution, Etc..............................................              24

     SECTION 6.3             No Payment When Designated Senior Debt in Default......................................              26

     SECTION 6.4             Acceleration of Series E Notes.........................................................              27

     SECTION 6.5             Payment Permitted If No Default........................................................              28

     SECTION 6.6             Obligation of Company Unconditional....................................................              28

     SECTION 6.7             Subrogation To Rights of Holders of Senior Debt........................................              28

     SECTION 6.8             Provisions Solely To Define Relative Rights............................................              29

     SECTION 6.9             No Waiver of Subordination Provisions..................................................              29

     SECTION 6.10            Reliance On Judicial Order or Certificate of Liquidating Agent.........................              30

     SECTION 6.11            Notice to Trustee......................................................................              30

     SECTION 6.12            Trustee's Relation to Senior Debt......................................................              31

     SECTION 6.13            Series E Note Holders Authorize Trustee to Effectuate Subordination....................              31

     SECTION 6.14            This Article Not to Prevent Event of Default...........................................              31

     SECTION 6.15            Trustee's Compensation Not Prejudiced..................................................              32

     SECTION 6.16            Subordination Provisions Not Applicable to Money Held in Trust for Holders of Series E
                             Notes; Payments May Be Paid prior to Dissolution.......................................              32

ARTICLE VII                  TAX MATTERS............................................................................              32

     SECTION 7.1             Taxes..................................................................................              32

</TABLE>
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

<TABLE>
<S>                          <C>                                                                                               <C>
ARTICLE VIII                 THE TRUSTEE............................................................................              35

     SECTION 8.1             Trustee's Disclaimer...................................................................              35

ARTICLE IX                   GUARANTEE..............................................................................              36

     SECTION 9.1             Unconditional Guarantee................................................................              36

     SECTION 9.2             Severability...........................................................................              36

     SECTION 9.3             Release of a Guarantor.................................................................              37

     SECTION 9.4             Limitation of Guarantor's Liability....................................................              37

     SECTION 9.5             Contribution...........................................................................              37

     SECTION 9.6             Execution of Guarantee.................................................................              38

     SECTION 9.7             Subordination of Subrogation and Other Rights..........................................              38

ARTICLE X                    SUBORDINATION OF GUARANTEE.............................................................              38

     SECTION 10.1            Guarantee Obligations Subordinated to Designated Senior Debt...........................              38

     SECTION 10.2            Payment of Proceeds Upon Dissolution, Etc..............................................              39

     SECTION 10.3            No Payment When Designated Senior Debt in Default......................................              40

     SECTION 10.4            Acceleration of Series E Notes.........................................................              42

     SECTION 10.5            Payments Permitted If No Default.......................................................              42

     SECTION 10.6            Obligations of Guarantors Unconditional................................................              42

     SECTION 10.7            Subrogation To Rights of Holders of Designated Senior Debt.............................              43

     SECTION 10.8            Provisions Solely to Define Relative Rights............................................              43

     SECTION 10.9            No Waiver of Subordination Provisions..................................................              44

     SECTION 10.10           Reliance On Judicial Order or Certificate of Liquidating Agent.........................              44

     SECTION 10.11           Notice to Trustee......................................................................              45

     SECTION 10.12           Trustee's Relation to Designated Senior Debt...........................................              45

     SECTION 10.13           Series E Note Holders Authorize Trustee to Effectuate Subordination....................              46

     SECTION 10.14           This Article Not to Prevent Event of Default...........................................              46

     SECTION 10.15           Trustee's Compensation Not Prejudiced..................................................              46

</TABLE>
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

<TABLE>
<S>                          <C>                                                                                             <C>
     SECTION 10.16           Subordination Provisions Not Applicable to Money Held in Trust for Holders of Series E
                             Notes; Payments May Be Paid prior to Dissolution.......................................              46

ARTICLE XI                   MISCELLANEOUS..........................................................................              47

     SECTION 11.1            Reference to Indenture.................................................................              47

     SECTION 11.2            Benefits of Indenture..................................................................              47

     SECTION 11.3            Amendments Only With Consent of the Holders............................................              47

     SECTION 11.4            Governing Law..........................................................................              48

     SECTION 11.5            Successors.............................................................................              48

     SECTION 11.6            Counterparts...........................................................................              48

</TABLE>
<PAGE>

                         THIRD SUPPLEMENTAL INDENTURE

     THIS THIRD SUPPLEMENTAL INDENTURE, dated as of            , 1999 (the
                                                    -----------
"Supplemental Indenture"), between TELECORP PCS, INC., a Delaware corporation
(the "Company"), and                   as Trustee (the "Trustee").
                     -----------------

                                  WITNESSETH

     WHEREAS, the Company will issue under its Indenture, dated as of          ,
                                                                      ---------
1999 (the "Indenture"), Notes which Notes may be created and established from
time to time in one or more series; and

     WHEREAS, the Company desires to create a new series of senior subordinated
Notes (the "Series E Notes") to be issued under the Indenture pursuant to this
Supplemental Indenture, and to set forth herein the forms, the maturity dates,
interest rates, terms of subordination, optional and mandatory redemption,
certain additional covenants and Events of Default (in addition to the covenants
and Events of Default contained in the Indenture); and

     WHEREAS, the execution, delivery and performance of this Supplemental
Indenture (including all the agreements herein contained) have been in all
respects duly authorized, and all acts and things have been done and performed
which are necessary to make this Supplemental Indenture, when duly executed and
delivered, a valid, binding and legal instrument in accordance with its terms
and for the purposes herein expressed;

     NOW THEREFORE, in consideration of the premises and for other good and
valuable consideration the receipt and sufficiency of which are hereby
acknowledged, the parties hereto, intending to be legally bound, hereby agree as
follows:


                  DEFINITIONS AND INCORPORATION BY REFERENCE

        SECTION 1.1  Terms Incorporated by Reference.

        Except for the terms defined in this Supplemental Indenture, all
capitalized terms used in this Supplemental Indenture have the respective
meanings set forth in the Indenture.

        SECTION 1.2  Additional Definitions.

                "Acquired  Indebtedness" means, with respect to any specified
        Person, Indebtedness of another Person (i) existing at the time such
        other Person becomes a Restricted Subsidiary or (ii) Indebtedness
        secured by a Lien encumbering any asset acquired by such specific
        Person.

                "Additional Series E Notes" means any additional Series E Notes
        issued by the Company in lieu of payments of cash interest on the
        Series E Notes.


                                       1

<PAGE>

                "Annualized Pro Forma Consolidated Operating Cash Flow" means
        Consolidated Cash Flow for the latest two full fiscal quarters for which
        consolidated financial statements of the Company are available
        multiplied by two. For purposes of calculating "Consolidated Cash Flow"
        for any period for purposes of this definition only, (i) any Subsidiary
        of the Company that is a Restricted Subsidiary on the date of the
        transaction giving rise to the need to calculate "Annualized Pro Forma
        Consolidated Operating Cash Flow" (the "Transaction Date") shall be
        deemed to have been a Restricted Subsidiary at all times during such
        period and (ii) any Subsidiary of the Company that is not a Restricted
        Subsidiary on the Transaction Date shall be deemed not to have been a
        Restricted Subsidiary at any time during such period. In addition to and
        without limitation of the foregoing, for purposes of this definition
        only, "Consolidated Cash Flow" shall be calculated after giving effect
        on a pro forma basis for the applicable period, without duplication, to
        any Asset Dispositions or Asset Acquisitions (including, without
        limitation, any Asset Acquisition giving rise to the need to make such
        calculation as a result of the Company or one of the Restricted
        Subsidiaries (including any Person that becomes a Restricted Subsidiary
        as a result of an Asset Acquisition) incurring, assuming or otherwise
        being liable for Acquired Indebtedness) occurring during the period
        commencing on the first day of such two fiscal quarter period to and
        including the Transaction Date (the "Reference Period"), as if such
        Asset Disposition or Asset Acquisition occurred on the first day of the
        Reference Period.

                "Asset Acquisition" means (i) any purchase or other acquisition
        (by means of transfer of cash or other property to others or payment for
        property or services for the account or use of others, or otherwise) of
        Equity Interests of any Person by the Company or any Restricted
        Subsidiary, in either case, pursuant to which such Person shall become a
        Restricted Subsidiary or shall be merged with or into the Company or any
        Restricted Subsidiary or (ii) any acquisition by the Company or any
        Restricted Subsidiary of the property or assets of any Person which
        constitute all or substantially all of an operating unit or line of
        business of such Person.

                "Asset Disposition" means, in lieu of the definition thereof
        contained in the Indenture, any sale, transfer or other disposition
        (including, without limitation, by merger, consolidation or sale-and-
        leaseback transaction) of (i) shares of Capital Stock of a Subsidiary of
        the Company (other than directors' qualifying shares), (ii) any FCC
        License for the provision of wireless telecommunications services held
        by the Company or any Restricted Subsidiary (whether by sale of Capital
        Stock or otherwise) or (iii) property or assets of the Company or any
        Subsidiary of the Company; provided , that an Asset Disposition shall
        not include (a) any sale, transfer or other disposition of shares of
        Capital Stock, property or assets by a Restricted Subsidiary to the
        Company or to any other Restricted Subsidiary or by the Company to any
        Restricted Subsidiary, (b) any sale, transfer or other disposition of
        defaulted receivables for collection or any sale, transfer or other
        disposition of property or assets in the ordinary course of business,
        (c) any sale, transfer or other disposition that does not (together with
        all related sales, transfers or dispositions) involve aggregate
        consideration in excess of $5.0 million, (d) any Permitted


                                       2

<PAGE>

        Sale-Leaseback, (e) any exchange of FCC PCS Licenses and any License
        Related Assets in connection therewith; provided that (1) such exchange
        shall be for a comparable number of POPs, (2) such exchange shall have
        been approved by the Board of Directors of the Company as being in the
        best interest of the Company and the Trustee shall have received a
        certified copy of such approval, (3) such exchange shall be for PCS
        Licenses held on the date of such exchange by AT&T PCS or a Person
        associated with or introduced by AT&T PCS, and (4) the PCS Licenses
        acquired in such exchange shall relate to BTAs or MTA's included within
        the Territory (as each such term is defined in the Stockholders'
        Agreement dated as of July 17, 1998, as amended, among AT&T PCS, the
        Company and the other parties thereto), (f) the sale, lease, conveyance
        or disposition or other transfer of all or substantially all the assets
        of the Company as permitted under Article 5 or (g) any disposition that
        constitutes a Change of Control.

                "AT&T Entity" means AT&T PCS and its Affiliates.

                "AT&T Holder" means a Holder that is an AT&T Entity.

                "AT&T PCS" means AT&T Wireless PCS, Inc., a Delaware
        corporation.

                "Average Life" means, as of the date of determination, with
        respect to any Indebtedness for borrowed money or Preferred Stock, the
        quotient obtained by dividing (i) the sum of the product obtained by
        multiplying (a) the number of years from the date of determination to
        the date of each successive scheduled principal or liquidation value
        payment of such Indebtedness or Preferred Stock, respectively, by (b)
        the amount of such principal or liquidation value payments, by (ii) the
        sum of all such principal or liquidation value payments.

                "Class A Common Stock" means Class A Voting Common Stock, par
        value $0.01 per share, of the Company.

                "Common Stock" means common stock, par value $0.01 per share,
        of the Company.

                "Communications Act" means the Communications Act of 1934, and
        any similar or successor Federal statute, and the rules and regulations
        and published policies of the FCC thereunder, as the same may be in
        effect from time to time.

                "Consolidated Cash Flow" of any Person means, for any period,
        the Consolidated Net Income of such Person for such period (i) increased
        (to the extent Consolidated Net Income for such period has been reduced
        thereby) by the sum of (without duplication) (a) Consolidated Interest
        Expense of such Person for such period, plus (b) Consolidated Income Tax
        Expense of such Person for such period, plus (c) the consolidated
        depreciation and amortization expense of such Person and its Restricted
        Subsidiaries for such period, plus (d) any other non-cash charges of
        such Person and its Restricted Subsidiaries for such period except for
        any non-cash charges that represent accruals of, or


                                       3

<PAGE>

        reserves for, cash disbursements to be made in any future accounting
        period and (ii) decreased (to the extent Consolidated Interest Expense
        for such period has been increased thereby) by any non-cash gains from
        Asset Dispositions.

               "Consolidated Income Tax Expense"  of any Person means, for any
        period, the consolidated provision for income taxes of such Person and
        its Restricted Subsidiaries for such period calculated on a consolidated
        basis in accordance with GAAP.

               "Consolidated Interest Expense" for any Person means, for any
        period the sum of (without duplication) (i) the consolidated interest
        expense included in a consolidated income statement (without deduction
        of interest or finance charge income) of such Person and its Restricted
        Subsidiaries for such period calculated on a consolidated basis in
        accordance with GAAP (including, without limitation, (a) any
        amortization of debt discount, (b) the net costs under any Hedging
        Agreement (other than interest rate cap or collar or other similar
        arrangement), (c) all capitalized interest, (d) the interest portion of
        any deferred payment obligation and (e) all amortization of any
        premiums, fees and expenses payable in connection with the incurrence of
        any Indebtedness, plus (ii) the interest component of Capital Lease
        Obligations paid, accrued and/or scheduled to be paid or accrued by such
        Person and its Restricted Subsidiaries during such period as determined
        on a consolidated basis in accordance with GAAP.

               "Consolidated Net Income" of any Person means, for any period,
        the consolidated net income (or loss) of such Person and its Restricted
        Subsidiaries for such period determined on a consolidated basis in
        accordance with GAAP; provided, that there shall be excluded therefrom
        (a) the net income (or loss) of any other Person acquired by such Person
        or its Restricted Subsidiary in a pooling-of-interests transaction for
        any period prior to the date of such transaction, (b) the net income
        (but not loss) of any Restricted Subsidiary of such Person which is
        subject to restrictions which prevent or limit the payment of dividends
        or the making of distributions to such Person to the extent of such
        restrictions (regardless of any waiver thereof) except to the extent of
        the amount of dividends or other distributions representing such
        Person's proportionate share of such Restricted Subsidiary's net income
        for such period which amount is actually paid, in cash, to such Person
        by such Restricted Subsidiary during such period, (c) the net income of
        any Person that is not a Restricted Subsidiary of such Person, except to
        the extent of the amount of dividends or other distributions
        representing such Person's proportionate share of such other Person's
        net income for such period actually paid in cash to such Person by such
        other Person during such period, (d) gains or losses (other than for
        purposes of calculating Consolidated Net Income under Section 4.05(a)(3)
        of the Indenture) on Asset Dispositions by such Person or its Restricted
        Subsidiaries, (e) all extraordinary gains or losses as determined in
        accordance with GAAP and (f) in the case of a successor to such Person
        by consolidation or merger or as a transferee of such Person's assets,
        any earnings (or losses) of the successor corporation prior to such
        consolidation, merger or transfer of assets.


                                       4

<PAGE>

                "Designated Senior Debt" means (i) so long as any Indebtedness
        under one or more Senior Credit Facilities is outstanding or any lender
        has any commitment to extend credit to the Company thereunder, the
        Senior Debt incurred under any such Credit Facility and (ii) so long as
        any other Senior Debt is outstanding, such Senior Debt if, at the time
        of initial issuance, it has an aggregate outstanding principal amount in
        excess of $25.0 million and such Senior Debt has been so designated as
        Designated Senior Debt by the Board of the Company at the time of
        initial issuance in a resolution delivered to the Trustee.

                "Excluded Cash Proceeds" means the net cash proceeds received
        by the Company subsequent to the Issue Date from capital contributions
        in respect of Qualified Stock of the Company or from the issue or sale
        (other than to a Restricted Subsidiary) of Qualified Stock of the
        Company to the extent such proceeds, pursuant to the Note Purchase
        Agreement, are required to be applied to repay the Series A Notes.

                "Expiration Event" means any of the following: (a) the
        occurrence of the "IPO Date" as defined in the Stockholders Agreement
        dated as of July 17, 1998 among AT&T PCS, the cash equity investors
        named therein, the management stockholders named therein and the
        Company, (b) a Change of Control or (c) the consummation of a Qualifying
        High Yield Offering.

                "High Yield Offering" means an offering, either in a registered
        public offering or a private placement, of notes, bonds or other
        securities that are pari passu or subordinated to the Notes but shall
        not include any Senior Credit Facility, the Series A Notes, the Series B
        Notes or any Notes issued under the Indenture.

                "Guarantor"  means (i) each Restricted Subsidiary that, on any
        Issue Date, is a direct or indirect obligor under, or in respect of, any
        Senior Debt and (ii) each Restricted Subsidiary that executes this
        Supplemental Indenture as a Guarantor, in each case, until such
        Restricted Subsidiary is released from its Guarantee.

                "Institutional Entity" means the management stockholders party
        to the Puerto Rico Stock Purchase Agreement dated as of April     , 1999
                                                                      ----
        among such management stockholders, Thomas Sullivan, Gerald Vento,
        Puerto Rico Acquisition Corp. and the Company, and their respective
        Affiliates.

                "Institutional Holder" means a Holder that is an Institutional
        Entity.

                "Issue Date" means                , 1999, the issue date of the
                                   ---------------
        Series E Notes initially issued hereunder.

                "Maturity Date" means the earlier of (i) the final maturity
        date of the Company's initial Qualifying High Yield Offering and (ii)
        [[              insert date six months earlier than Series C maturity]].
          -------------


                                       5

<PAGE>

                "MTA" means a Major Trading Area as defined in 47 C.F.R. 24.202,
        as amended from time to time.

                "Net Debt Proceeds" with respect to any High Yield Offering by
        the Company or any Subsidiary, the excess of:  (a) the gross cash
        proceeds received by the Company or such Subsidiary from such offering,
        over (b) all reasonable fees and expenses incurred in connection with
        such offering (including customary underwriting commissions or discounts
        and legal, investment banking, brokerage and accounting, trustee fees
        and other professional fees, sales commission and disbursements) which
        have not been paid to Affiliates of the Company in connection therewith.

                "Note Purchase Agreement" means  the Amended and Restated Note
        Purchase Agreement dated          , 1999 between the Company and Lucent.
                                 ---------

                "Public Sale" means any underwritten public offering, made on a
        primary basis pursuant to a registration statement filed with, and
        declared effective by, the SEC in accordance with the Securities Act.

                "Qualified Stock" means any Capital Stock of the Company other
        than Disqualified Stock.

                "Qualifying High Yield Offering" means a High Yield Offering
        that results in Net Debt Proceeds to the Company of at least
        $100,000,000.

                "Series C Notes"  means the Series C Notes of the Company in an
        initial aggregate principal account not to exceed $65,000,000 which
        Notes are to be issued pursuant to the Indenture.

                "Series C Preferred Stock" means Series C Preferred Stock, par
        value $0.01 per share, of the Company.

                "Series D Notes"  means the Series D Notes of the Company in an
        initial aggregate principal not to exceed $[             ] which Notes
                                                    -------------
        are to be issued pursuant to the Indenture.

                "Series E Guarantee" means the guarantee of the Series E Notes
        by each Guarantor under this Supplemental Indenture.

                "Series E Guarantor" means (i) each Restricted Subsidiary that,
        on an Issue Date, is a direct or indirect obligor under, or in respect
        of, one or more of the Senior Credit Facilities and (ii) each
        Restricted Subsidiary that pursuant to the terms of this Supplemental
        Indenture executes a further supplement as a Guarantor, in each case,
        until such Restricted Subsidiary is released from its guarantee.

                "Total Consolidated Indebtedness" means, at any date of
        determination, an amount equal to (i) the accreted value of all
        Indebtedness, in the case of any Indebtedness


                                       6

<PAGE>

        isued with original issue discount, plus (ii) the principal amount of
        all Indebtedness, in the case of any other Indebtedness, of the Company
        and the Restricted Subsidiaries outstanding as of the date of
        determination.

                "Total Invested Capital" means, at any date of determination,
        the sum of, without duplication, (i) the total amount of equity
        contributed to the Company as of the initial Issue Date (as set forth on
        the                      , audited consolidated balance sheet of the
            ---------------------
        Company), plus (ii) irrevocable binding commitments to purchase Capital
        Stock (other than Disqualified Stock) existing as of such Issue Date,
        plus (iii) the aggregate net cash proceeds received by the Company from
        capital contributions or the issuance or sale of Capital Stock (other
        than Disqualified Stock but including Capital Stock issued upon the
        conversion of convertible Indebtedness or from the exercise of options,
        warrants or rights to purchase Capital Stock (other than Disqualified
        Stock)) subsequent to the Issue Date, other than to a Restricted
        Subsidiary; provided, such aggregate net cash proceeds received pursuant
        to this clause (iii) shall exclude any amounts included as commitments
        to purchase Capital Stock in the preceding clause (ii), plus (iv) the
        aggregate net cash proceeds received by the Company or any Restricted
        Subsidiary from the sale, disposition or repayment of any Investment
        made after the Issue Date and constituting a Restricted Payment in an
        amount equal to the lesser of (a) the return of capital with respect to
        such Investment and (b) the initial amount of such Investment, in either
        case, less the cost of the disposition of such Investment, plus (v) an
        amount equal to the consolidated net Investment on such date of the
        Company and/or any of the Restricted Subsidiaries in any Subsidiary that
        has been designated as an Unrestricted Subsidiary after the Issue Date
        upon its redesignation as a Restricted Subsidiary in accordance with
        Section 4.06 of the Indenture, plus (vi) Total Consolidated
        Indebtedness, minus (vii) the aggregate amount of all Restricted
        Payments (including any Designation Amount, but other than a Restricted
        Payment of the type referred to in Section 4.03(b)(iii)(b)) declared or
        made on or after the Issue Date.

                "Triton Bonds" means the 11% Senior Subordinated Discount Notes
        due 2008 issued by Triton PCS, Inc. pursuant to the Indenture dated as
        of May 4, 1998 among Triton PCS, Inc., the guarantors thereto and PNC
        Bank, National Association, as trustee.

                "Vendor" means Lucent in its capacity as such under the
        Procurement Contract.

                "Vendor Credit Arrangement" means any Indebtedness (including,
        without limitation, Indebtedness under any credit facility entered into
        with any vendor or supplier or any financial institution acting on
        behalf of such vendor or supplier); provided that the net proceeds of
        such Indebtedness are utilized solely for the purpose of financing the
        cost (including, without limitation, the cost of design, development,
        site acquisition, construction, integration, handset manufacture or
        acquisition or microwave relocation) of assets used or usable in a
        Permitted Business (including, without limitation, through the
        acquisition of Capital Stock of an entity engaged in a Permitted
        Business).


                                       7

<PAGE>

                "Yield" means, in respect of any bond, as of any date of
        determination, the average yield to maturity on such bond (computed on a
        bond equivalent basis and utilizing the last quoted sale price for each
        day or, if no sales occur on such date, the last quoted sales price from
        the immediately preceding day) for the 30 consecutive days immediately
        prior to such date of determination.

<TABLE>
<CAPTION>
        SECTION 1.3  Other Definitions.
       <S>                                      <C>
                Defined in:

                   Term                          Section

        "Administrative Agent"                   6.03
        "Cash Equity Investors"                  4.15
        "Event of Default"                       5.01
        "Funding Guarantor"                      9.05
        "Guarantee Payment"                      10.02
        "Guarantee Payment Blockage Period"      10.03
        "Indenture"                              Recitals
        "Management Stockholders"                4.15
        "Participant"                            7.01
        "Payment Blockage Period"                6.03
        "Proceeding"                             6.02
        "Related Party"                          4.01
        "Restricted Payments"                    4.03
        "Securities Payment"                     6.02
        "Senior Nonmonetary Default"             6.03
        "Senior Payment                          6.03
        "Series E Notes"                         Recitals
        "Purchase Agreement"                     Recitals
        "Supplemental Indenture"                 Recitals
        "Transferee"                             7.01
</TABLE>

                                  ARTICLE II

                                   THE NOTES

        SECTION 2.1  Terms of Series E Notes.

              (a)    There are hereby created and established the Series E
                     Notes to be issued in the initial aggregate principal
                     amount of $          and maturing on the Maturity Date.
                                ---------

              (b)    The Company may issue at any time, and, subject to the
                     terms and conditions set forth herein, the Trustee shall
                     authenticate Series E Notes.  The Series E Notes shall have
                     the following terms:

                                       8

<PAGE>

                     (i)    The Series E Notes shall bear interest through and
                            including October 31, 1999 at an initial rate per
                            annum, determined two Business Days before the
                            initial issuance, equal to the lesser of (a) 12% and
                            (b) the Yield on the Triton Bonds; provided that
                            from and after the earlier of (x) November 1, 1999
                            and (y) the date of an Expiration Event, the Series
                            E Notes shall bear interest at a rate per annum
                            equal to 7%. The rate of interest borne by the
                            Series C Notes as determined pursuant to the terms
                            of this clause (i) is referred to as the "Series E
                            Coupon Rate."

                     (ii)   The Series E Notes are subject to redemption and
                            repurchase by the Company in accordance with the
                            terms of the Indenture and in Article 3 hereof.

                     (iii)  The Series E Notes are entitled to the protections
                            of the covenants contained in the Indenture and in
                            Article 4 hereof and are subject to the provisions
                            pertaining to Events of Default contained in the
                            Indenture and in Article 5 hereof.

                     (iv)   The Series E Notes shall be issuable in fully
                            registered form, without coupons, in denominations
                            of $           and integral multiples of $
                                ----------                            ----------
                            in excess thereof.

                     (v)    The Series E Notes shall be dated as described in
                            Section 2.02 of the Indenture, except that the
                            Series E Notes first issued shall be dated as of
                            the Issue Date.

                     (vi)   The Company shall pay in full the outstanding
                            aggregate principal amount of the Series E Notes,
                            together with any accrued interest and other amounts
                            with respect to such Series E Notes, no later than
                            the Maturity Date.

                     (vii)  Interest on the Series E Notes shall be paid in
                            arrears in cash on the six-month and annual
                            anniversary of the Issuance Date; provided that (A)
                            interest on the Series E Notes on or prior to the
                            fifth annual anniversary of the Issuance Date may be
                            paid in Additional Series E Notes and (B) thereafter
                            Interest on the Series E Notes shall be paid in
                            arrears in cash, provided that if such payment in
                            cash shall be prohibited under the terms of the
                            Company's Senior Credit Facilities, payment shall be
                            in Additional Series E Notes. The Company shall pay
                            interest (including post-petition interest in any
                            proceeding under any Bankruptcy Law whether or not a
                            claim for post-petition


                                       9

<PAGE>

                            interest is allowed in such proceeding) on overdue
                            principal, premium, if any, and interest (whether at
                            stated maturity, by notice of prepayment, by
                            acceleration or otherwise) at the rate equal to 2%
                            per annum in excess of the rate of interest
                            otherwise payable under this Supplemental Indenture,
                            in each case, to the extent lawful. Interest shall
                            be computed on the basis of a 360-day year and
                            twelve 30-day months. In computing interest on the
                            Series E Notes, the date of the making of the Series
                            E Notes shall be included and the date of payment
                            shall be excluded.

                     (viii) For purposes of Section 2.10 of the Indenture,
                            Series E Notes owned by any Affiliate of the Company
                            shall be considered as though not outstanding except
                            that for purposes of determining whether the Trustee
                            shall be protected in relying on any direction,
                            waiver or contract, only Notes that a Trustee knows
                            are so owned shall be so considered.

                     (ix)   Payment of principal, premium, if any, and interest
                            on the Series E Notes will be made in lawful money
                            of the United States of America as at the time of
                            payment is legal tender for the payment of private
                            and public debt. Payment of principal of and
                            premium, if any, on the Series E Notes will be made
                            upon surrender thereof at the office or agency of
                            the Company maintained for that purpose in the City
                            and State of New York, and principal and interest
                            may be paid by check mailed to the address of the
                            Holder as such address appears in the records of the
                            Registrar as of the applicable record date or upon
                            written request made prior to the applicable record
                            date by a Holder in an aggregate principal amount in
                            excess of $          , payments in respect of such
                                       ----------
                            Series E Notes shall be made by wire transfer;
                            provided, that in the case of redemption or
                            repurchase the Company may designate such other
                            offices or agencies at which Series E Notes subject
                            to such redemption or repurchase may be surrendered
                            for payment.

              (c)    The Series E Notes shall be substantially in the form of
                     Exhibit A which Exhibit shall be a part of this
                     Supplemental Indenture.

              (d)    The Series E Notes may not be transferred, except to an
                     Institutional Holder, on or prior to December 31, 2000.
                     Upon the transfer of any Series E Note to any Person that
                     is not an

                                      10

<PAGE>

                     Institutional Holder, the conversion privilege of
                     such Series E Note shall terminate.

              (e)    For all purposes of any provision of the Indenture or this
                     Supplemental Indenture that contemplates action to be taken
                     by the Holders of Notes of any Series (including without
                     limitation any action or consent referred to in Article 6
                     or Article 9 of the Indenture), the Series E Notes and the
                     Series D Notes taken together shall be treated as a single
                     Series.

        SECTION 2.2  Execution and Authentication.

              (a)    The Series E Notes shall be executed and authenticated
                     pursuant to Section 2.03 of the Indenture.

        SECTION 2.3  Conversion Privilege.

        The initial Holder or a permitted transferee of such Holder that is an
Institutional Holder may convert the Series E Notes held by it into units
("Units") comprised of shares of Class A Common Stock and Series C Preferred
Stock as follows. The Series E Notes may not be converted on or before October
31, 1999 and may not be converted after the occurrence of an Expiration Event.
On any day that is both (x) after October 31, 1999 and (y) before the occurrence
of an Expiration Event, an Institutional Holder may convert the Series E Notes
then held by it, in an amount equal to all (or any part of the principal thereof
that is an integral multiple of $100,000) of the Series E Notes owned by such
Holder, into a number of fully paid and non-assessable shares of Class A Common
Stock and Series C Preferred Stock determined as set forth below. The conversion
privilege shall terminate permanently (a) as to all Series E Notes upon the
occurrence of an Expiration Event and (b) as to a particular Series E Note upon
any transfer of such Note to any Person that is not an Institutional Holder.

              (a)    Number of Shares of Class A Common Stock and Series C
                     Preferred Stock Issuable Upon Conversion. Each Unit shall
                     consist of 1 share of Class A Common Stock and 1 share of
                     Series C Preferred Stock. The number of Units to be issued
                     upon any conversion of Series E Notes shall be equal to (i)
                     the principal amount of Series E Notes to be converted,
                     divided by (ii) $1,200.

              (b)    Fractional Shares.  No fractional shares of Class A
                     Common Stock or Series C Preferred Stock shall be issued
                     upon conversion of Series E Notes. In lieu of any
                     fractional share to which the Holder would otherwise be
                     entitled after determination of the aggregate full number
                     of shares of Class A Common Stock and Series C Preferred
                     Stock issuable in respect of the principal amount of Series
                     E Notes then being converted, the Company shall pay cash
                     equal to such fraction multiplied by the Liquidation
                     Preference of the shares of Class A Common Stock or Series
                     C Preferred Stock,


                                      11

<PAGE>

                     as the case may be, to which the Holder
                     would otherwise be entitled.

              (c)    Mechanics of Conversion.  In order for a Holder of Series
                     E Notes to convert such Series E Notes into Units, such
                     Holder of Series E Notes shall surrender his or its Note(s)
                     in the aggregate principal amount to be converted to the
                     Company at the office of the [Trustee], together with
                     written notice that such Holder elects to convert the
                     aggregate principal amount of Series E Notes specified in
                     such notice. The date of receipt of such Note(s) and notice
                     by the Company at such office shall be the "Conversion
                     Date". If required by the Company, Series E Notes
                     surrendered for conversion shall be endorsed or accompanied
                     by a written instrument or instruments of transfer, in form
                     satisfactory to the Company, duly executed by the Holder or
                     his or its attorney duly authorized in writing. As soon as
                     practicable after the Conversion Date and the surrender of
                     the Series E Notes(s), the Company shall issue and deliver
                     to such Holder, at its address as it appears on the books
                     of the Registrar, one or more certificates for the number
                     of shares of Class A Common Stock and Series C Preferred
                     Stock, respectively, issuable upon such conversion in
                     accordance with the provisions hereof.

              (d)    Reservation of Shares.  The Company shall, at all times
                     when the Series E Notes shall be outstanding, reserve and
                     keep available out of its authorized but unissued stock,
                     for the purpose of effecting the conversion of the Series E
                     Notes, such number of its duly authorized shares of Class A
                     Common Stock and Series C Preferred Stock as shall from
                     time to time be sufficient to effect the conversion of all
                     outstanding Series E Notes. Before taking any action which
                     would cause Class A Common Stock or Series C Preferred
                     Stock, upon the conversion of Series E Notes, to be issued
                     below the then par value of the shares of Class A Common
                     Stock or Series C Preferred Stock, as the case may be, the
                     Company will take any corporate action that may, in the
                     opinion of its counsel, be necessary in order that the
                     Company may validly and legally issue fully paid and non-
                     assessable shares of Class A Common Stock and Series C
                     Preferred Stock to the Holders of Series E Notes.

              (e)    Interest. Accrued and unpaid interest on the Series E
                     Notes shall be convertible in the same manner as principal.


              (f)    Termination of Rights.  All Series E Notes that shall be
                     subject to conversion as herein provided, and which have
                     not been surrendered prior to the Conversion Date, shall no
                     longer be

                                      12

<PAGE>

                     deemed to be outstanding and all rights with
                     respect to such Series E Notes, including the rights, if
                     any, to receive notices, shall immediately cease and
                     terminate on the Conversion Date, except only the right of
                     the Holders thereof to receive payment of any accrued and
                     unpaid interest thereon. On and as of the Conversion Date,
                     the shares of Class A Common Stock and Series C Preferred
                     Stock issuable upon such conversion shall be deemed to be
                     outstanding, and the holder thereof shall be entitled to
                     exercise and enjoy all rights with respect to such shares
                     of Class A Common Stock and Series C Preferred Stock,
                     including the rights, if any, to receive notices and to
                     vote.

              (g)    No Conversion Charge or Tax. The issuance and delivery of
                     certificates for shares of Class A Common Stock and Series
                     C Preferred Stock upon the conversion of Series E Notes
                     shall be made without charge to the Holder of Series E
                     Notes for any issue or transfer tax, or other incidental
                     expense in respect of the issuance or delivery of such
                     certificates or the securities represented thereby, all of
                     which taxes and expenses shall be paid by the Company.

              (h)    Reorganization, Reclassification and Merger Adjustment.
                     If there occurs any capital reorganization or any
                     reclassification of Class A Common Stock or Series C
                     Preferred Stock, the consolidation or merger of the Company
                     with or into another Person (other than a consolidation or
                     merger of the Company in which the Company is the
                     continuing corporation and that does not result in any
                     reclassification or change of outstanding shares of its
                     Class A Common Stock) or the sale or conveyance of all or
                     substantially all of the assets of the Company to another
                     Person, then each Series E Note shall thereafter be
                     convertible into the same kind and amounts of securities
                     (including shares of stock) or other assets, or both, that
                     were issuable or distributable to the holders of
                     outstanding Class A Common Stock or Series C Preferred
                     Stock, as the case may be, upon such reorganization,
                     reclassification, consolidation, merger, sale or
                     conveyance, in respect of that number of shares of Class A
                     Common Stock or Series C Preferred Stock, as the case may
                     be, into which such principal amount of Series E Notes
                     might have been converted immediately prior to such
                     reorganization, reclassification, consolidation, merger,
                     sale or conveyance; and, in any such case, appropriate
                     adjustments (as determined in good faith by the Board of
                     Directors of the Company), whose determination shall be
                     conclusive) shall be made to assure that the provisions set
                     forth herein shall thereafter be applicable, as nearly as
                     reasonably may be practicable, in


                                      13

<PAGE>

                     relation to any securities or other assets thereafter
                     deliverable upon the conversion of the Series E Notes.

              (i)    Notice of Adjustment.  Whenever the securities or other
                     property deliverable upon the conversion of the Series E
                     Notes shall be adjusted pursuant to the provisions hereof,
                     the Company shall promptly give written notice thereof to
                     each Holder of Series E Notes at such Holder's address as
                     it appears on the transfer books of the Registrar and shall
                     forthwith file, at its principal executive office and with
                     the Trustee, a certificate, signed by the Chairman of the
                     Board, President or one of the Vice Presidents of the
                     Company, and by its Chief Financial Officer, Treasurer or
                     one of its Assistant Treasurers, stating the securities or
                     other property deliverable per $100,000 in principal amount
                     of Series E Notes calculated to the nearest cent or to the
                     nearest one-hundredth of a share and setting forth in
                     reasonable detail the method of calculation and the facts
                     requiring such adjustment and upon which such calculation
                     is based. Each adjustment shall remain in effect until a
                     subsequent adjustment hereunder is required.

              (j)    Notice of Certain Events.  In case the Company shall
                     propose at any time or from time to time (i) to declare or
                     pay any dividend payable in stock of any class to the
                     holders of Common Stock, Class A Common Stock or Series C
                     Preferred Stock or to make any other distribution to the
                     holders of Common Stock, Class A Common Stock or Series C
                     Preferred Stock, (ii) to offer to the holders of Common
                     Stock, Class A Common Stock or Series C Preferred Stock
                     rights or warrants to subscribe for or to purchase any
                     additional shares of Common Stock or shares of stock of any
                     class or any other securities, rights or options, (iii) to
                     effect any reclassification of its Common Stock, Class A
                     Common Stock or Series C Preferred Stock, (iv) to effect
                     any consolidation, merger or sale, transfer or other
                     disposition of all or substantially all of the property,
                     assets or business of the Company which would, if
                     consummated, adjust the conversion ratio specified in
                     paragraph (a) above or the securities issuable upon
                     conversion of Series E Notes, or (v) to effect the
                     liquidation, dissolution or winding up of the Company,
                     then, in each such case, the Company shall mail to each
                     Holder, at such Holder's address as it appears on the
                     transfer books of the Registrar, a written notice of such
                     proposed action, which shall specify (A) the date on which
                     a record is to be taken for the purpose of such dividend or
                     distribution of rights or warrants or, if a record is not
                     to be taken, the date as of which the holders of shares of
                     Common Stock, Class A Common Stock or Series C Preferred
                     Stock, as the case may be, of record to be entitled to such
                     dividend or distribution of rights or warrants are to



                                      14

<PAGE>

                     be determined, or (B) the date on which such
                     reclassification, consolidation, merger, sale, conveyance,
                     dissolution, liquidation or winding up is expected to
                     become effective, and such notice shall be so given as
                     promptly as possible but in any event at least ten Business
                     Days prior to the applicable record, determination or
                     effective date, specified in such notice.

                                  ARTICLE III

                     PREPAYMENTS AND MANDATORY REDEMPTIONS

        SECTION 3.1  Optional Prepayments.

        The Company, at its option, upon notice as provided in Section 3.03 of
the Indenture, may redeem at any time, in whole or in part (in a minimum amount
of $10,000,000 and in integral multiples of $1,000,000 in excess thereof),
without premium, any or all of the Series E Notes.

        SECTION 3.2  Mandatory Redemption of Series E Notes.

        In the event that the Company receives the Net Debt Proceeds from a
Qualifying High Yield Offering, the Company shall first apply such proceeds to
redeem the Series E Notes and the Series D Notes held by Institutional Holders
and AT&T Holders, respectively, together with any accrued interest thereon. The
Company shall give prompt written notice of the receipt of any Net Debt Proceeds
(which notice shall in any event be within 10 days after such receipt) to any
Institutional Holder holding Series E Notes by facsimile transmission (and shall
confirm such notice by prompt telephonic advice to an investment officer of each
such Holder) or by registered mail. Such notice shall state that on a date
specified therein (which date shall not be less than 15 days after the date of
such notice) the Company, upon receipt of the outstanding Series E Notes, shall
redeem Series E Notes held by Institutional Holders in an aggregate principal
amount equal to the Net Debt Proceeds. Any notice from the Company to redeem any
of the Series E Notes pursuant to this Section 3.02 shall be accompanied by an
Officers' Certificate certifying that the conditions of this Section 3.02 have
been fulfilled and shall otherwise satisfy the requirements of Section 3.03 of
the Indenture. On the date specified in the Company's notice, the Company, upon
receipt of an outstanding Series E Note, shall redeem such portion of such
Series E Note together with accrued interest thereon and shall promptly mail to
the Holder of such Series E Note the redemption payment therefor and a new
Series E Note in a principal amount equal to the excess of the principal amount
of the Series E Note submitted in connection with such redemption over the
principal amount of such Series E Note so redeemed.


                                      15

<PAGE>

                                  ARTICLE IV

                            SUPPLEMENTARY COVENANTS

        SECTION 4.1 Limitation on Transactions with Affiliates.

        The Company will not, and will not cause or permit any Restricted
Subsidiary to, directly or indirectly, conduct any business or enter into, renew
or extend any transaction with any of their respective Affiliates or any
beneficial holder of 10% or more of any class of Capital Stock of the Company,
including, without limitation, the purchase, sale, lease or exchange of
property, the rendering of any service, or the making of any guarantee, loan,
advance or Investment, either directly or indirectly, unless the terms of such
transaction are at least as favorable as the terms that could be obtained at
such time by the Company or such Restricted Subsidiary, as the case may be, in a
comparable transaction made on an arms'-length basis with a Person that is not
such an Affiliate; provided, that (x) in any transaction involving aggregate
consideration in excess of $10.0 million, the Company shall deliver an Officers'
Certificate to the Trustee stating that the Board of Directors have determined,
in their good faith judgment, that the terms of such transaction are at least as
favorable as the terms that could be obtained by the Company or such Restricted
Subsidiary, as the case may be, in a comparable transaction made on an arms'-
length basis between unaffiliated parties and (y) if the aggregate consideration
is in excess of $25.0 million, the Company shall also deliver to the Trustee,
prior to the consummation of the transaction, the favorable written opinion of a
nationally recognized accounting, appraisal or investment banking firm as to the
fairness of the transaction to Holders, from a financial point of view (it being
understood that no such opinion shall be required in connection with (1) the
Puerto Rico Transaction or (2) any acquisition of PCS Licenses from AT&T PCS or
a Person associated with or introduced by AT&T PCS, which transaction has been
approved by a majority of the Company's Directors other than Thomas Sullivan,
Gerald Vento or Directors appointed by AT&T PCS and which relates to PCS
Licenses for BTAs or MTA's included within the Territory (as each such term is
defined in the Stockholders' Agreement dated as of July 17, 1998, as amended,
among AT&T PCS, the Company and the other parties thereto)).

     Notwithstanding the foregoing, the restrictions set forth in this Section
4.01 shall not apply to (i) transactions between or among the Company and/or any
Restricted Subsidiaries, (ii) any Restricted Payment or Permitted Investments
permitted by Section 4.03, (iii) directors' fees, indemnification and similar
arrangements, officers' indemnification, employee stock option plans, restricted
stock plans or employee benefit plans and employee salaries and bonuses paid or
created in the ordinary course of business, (iv) any other agreement in effect
on the Issue Date, as the same shall be amended from time to time; provided that
any material amendment shall be required to comply with the provisions of the
preceding paragraph of this Section 4.01, (v) transactions with AT&T or any of
its Affiliates relating to marketing of telecommunications services, providing
any voice and voice related mobile wireless radio telephone services and using
certain intellectual property of AT&T on terms that are no less favorable (when
taken as a whole) to the Company or such Restricted Subsidiary, as applicable,
than those available from unaffiliated third parties, (vi) transactions
involving the leasing or sharing or other use by the Company or any Restricted
Subsidiary of communications network facilities (including, without limitation,
cable or fiber lines, equipment or transmission capacity) of any Affiliate of
the Company or any beneficial holder of 10% or more of any class of Capital
Stock of the Company (such Affiliate or holder being a "Related Party") on terms
that are no less favorable (when taken

                                      16

<PAGE>

as a whole) to the Company or such Restricted Subsidiary, as applicable, than
those available from such Related Party to unaffiliated third parties, (vii)
transactions involving the provision of personal communications services by a
Related Party in the ordinary course of its business to the Company or any
Restricted Subsidiary, or by the Company or any Restricted Subsidiary to a
Related Party, on terms that are no less favorable (when taken as a whole) to
the Company or such Restricted Subsidiary, as applicable, than those available
from such Related Party to unaffiliated third parties, (viii) any sales agency
agreements pursuant to which an Affiliate has the right to market any or all the
products or services of the Company or any Restricted Subsidiary, and (ix)
customary commercial banking, investment banking, underwriting, placement agent
or financial advisory fees paid in connection with services rendered to the
Company and its Subsidiaries in the ordinary course.

        SECTION 4.2 Limitation on Incurrence of Indebtedness.

        The Company shall not, and shall not cause or permit any Restricted
Subsidiary to, directly or indirectly, incur any Indebtedness (including
Acquired Indebtedness), except:

              (i)    Indebtedness of the Company, if immediately after giving
                     effect to the incurrence of such Indebtedness and the
                     receipt and application of the net proceeds thereof
                     (including, without limitation, the application or use of
                     the net proceeds therefrom to repay Indebtedness, to
                     consummate an Asset Acquisition or to make any Restricted
                     Payment), (a) in the case of any incurrence of Indebtedness
                     on or after September 30, 2002 only, the ratio of (x) Total
                     Consolidated Indebtedness to (y) Annualized Pro Forma
                     Consolidated Operating Cash Flow would be less than (i)
                     30.0 to 1.0, if the Indebtedness is to be incurred on or
                     after September 30, 2002 and prior to December 31, 2002, or
                     (ii) 24.0 to 1.0, if the Indebtedness is to be incurred on
                     or after December 31, 2002 and prior to December 31, 2003,
                     or (iii) 10.25.0 to 1.0, if the Indebtedness is to be
                     incurred on or after December 31, 2003 and prior to
                     December 31, 2004, or (iv) 5.5 to 1.0, if the Indebtedness
                     is to be incurred on or after December 31, 2004, or (b) in
                     the case of any incurrence of Indebtedness prior to March
                     31, 2005 only, Total Consolidated Indebtedness would be
                     equal to or less than 75% of Total Invested Capital ;

              (ii)   Indebtedness of the Company and the Restricted
                     Subsidiaries incurred under one or more Senior Credit
                     Facilities in an aggregate amount at any one time
                     outstanding not to exceed $600 million in the aggregate for
                     all such Senior Credit Facilities;


                                      17

<PAGE>

              (iii)  Indebtedness of the Company and its Restricted
                     Subsidiaries outstanding from time to time pursuant to any
                     Vendor Credit Arrangement;

              (iv)   Indebtedness owed by the Company to any Restricted
                     Subsidiary or Indebtedness owed by a Restricted Subsidiary
                     to the Company or another Restricted Subsidiary; provided,
                     that upon either (x) the transfer or other disposition by
                     such Restricted Subsidiary or the Company of any
                     Indebtedness so permitted under this clause (iv) to a
                     Person other than the Company or another Restricted
                     Subsidiary or (y) the issuance (other than directors'
                     qualifying shares), sale, transfer or other disposition of
                     shares of Capital Stock or other ownership interests
                     (including by consolidation or merger) of such Restricted
                     Subsidiary to a Person other than the Company or another
                     such Restricted Subsidiary, the exception provided by this
                     clause (iv) shall no longer be applicable to such
                     Indebtedness and such Indebtedness shall be deemed to have
                     been incurred at the time of any such issuance, sale,
                     transfer or other disposition, as the case may be;

              (v)    Indebtedness of the Company or any Restricted Subsidiary
                     under any Hedging Agreement to the extent entered into to
                     protect the Company or such Restricted Subsidiary from
                     fluctuations in interest rates on any other Indebtedness
                     permitted under the Indenture (including the Notes) and not
                     for speculative purposes;

              (vi)   Indebtedness incurred to refinance any Indebtedness
                     incurred under the prior clause (i) or (iii) above, the
                     Notes or the Guarantees; provided, that (x) such
                     Indebtedness does not exceed the principal amount (or
                     accreted value, if less) of the Indebtedness so refinanced
                     plus the amount of any premium required to be paid in
                     connection with such refinancing pursuant to the terms of
                     the Indebtedness being refinanced or the amount of any
                     premium reasonably determined by the issuer of such
                     Indebtedness as necessary to accomplish such refinancing by
                     means of a tender offer, exchange offer, or privately
                     negotiated repurchase, plus the expenses of such issuer
                     reasonably incurred in connection therewith and (y)(1) in
                     the case of any refinancing of Indebtedness that is pari
                     passu with the Series E Notes, such refinancing
                     Indebtedness is made pari passu with or subordinate in
                     right of payment to the Series E Notes, and, in the case of
                     any refinancing of Indebtedness that is


                                      18

<PAGE>

                     subordinate in right of payment to the Notes, such
                     refinancing Indebtedness is subordinate in right of payment
                     to the Notes on terms no less favorable to the Holders than
                     those contained in the Indebtedness being refinanced, (2)
                     in either case, the refinancing Indebtedness by its terms,
                     or by the terms of any agreement or instrument pursuant to
                     which such Indebtedness is issued, does not have an Average
                     Life that is less than the remaining Average Life of the
                     Indebtedness being refinanced and (3) any Indebtedness
                     incurred to refinance any Indebtedness is incurred by the
                     obligor on the Indebtedness being refinanced or by the
                     Company;

              (vii)  Capital Lease Obligations of the Company or any Restricted
                     Subsidiary with respect to the leasing by the Company or
                     any Restricted Subsidiary of tower sites and equipment that
                     is a fixture thereto; provided, that the aggregate
                     principal amount of Capital Lease Obligations at any time
                     outstanding shall not exceed the sum of (x) the aggregate
                     principal amount of Capital Lease Obligations then
                     outstanding under the Permitted Sale-Leaseback and (y) $25
                     million;

              (viii) Indebtedness of the Company or any Restricted Subsidiary
                     consisting of a guarantee of Indebtedness of the Company or
                     a Restricted Subsidiary of the Company that was permitted
                     to be incurred by another provision of this Section 4.02;

              (ix)   FCC Debt in an aggregate principal amount not to exceed
                     $40 million at any time outstanding plus the FCC Debt
                     incurred in connection with the Mercury Acquisition and
                     the Wireless 2000 Acquisition;

              (x)    Indebtedness of the Company or any Restricted Subsidiary
                     in respect of statutory obligations, performance, surety
                     or appeal bonds or other obligations of a like nature
                     incurred in the ordinary course of business; and

              (xi)   Indebtedness of the Company not otherwise permitted to be
                     incurred pursuant to clauses (i) through (x) above which,
                     together with any other outstanding Indebtedness incurred
                     pursuant to this clause (xi), has an aggregate principal
                     amount not in excess of $75 million at any time
                     outstanding. Indebtedness of a person existing at the time
                     such person becomes a Restricted Subsidiary or which is


                                      19

<PAGE>

                     secured by a Lien on an asset acquired by the Company or a
                     Restricted Subsidiary (whether or not such Indebtedness is
                     assumed by the acquiring person) shall be deemed incurred
                     at the time the person becomes a Restricted Subsidiary or
                     at the time of the asset acquisition, as the case may be.

For purposes of determining compliance with this Section 4.02, in the event that
an item of Indebtedness meets the criteria of more than one of the categories of
Indebtedness permitted pursuant to clauses (i) through (x) above, the Company
shall, in its sole discretion, be permitted to classify such item of
Indebtedness in any manner that complies with this Section 4.04 and may from
time to time reclassify such item of Indebtedness in any manner that would
comply with this Section 4.04 at the time of such reclassification. Accrual of
interest and the accretion of accreted value will not be deemed to be an
incurrence of Indebtedness for purposes of this Section 4.04.

        SECTION 4.3  Limitation on Restricted Payments.

              (a)  The Company shall not, and shall not cause or permit any
                   Restricted Subsidiary to, directly or indirectly, on or
                   prior to             , 2002.
                            ------------

                   (i)   declare or pay any dividend, or make any distribution
                         of any kind or character (whether in cash, property or
                         securities), in respect of any class of Capital Stock
                         of the Company excluding, any dividends or
                         distributions payable solely in shares of Qualified
                         Stock of the Company or in options, warrants or other
                         rights to acquire Qualified Stock of the Company,

                   (ii)  purchase, redeem or otherwise acquire or retire for
                         value any shares of Capital Stock of the Company, any
                         options, warrants or rights to purchase or acquire such
                         shares or any securities convertible or exchangeable
                         into such shares (other than any such shares of Capital
                         Stock, options, warrants, rights or securities that are
                         owned by the Company or a Restricted Subsidiary),

                  (iii)  make any Investment (other than Permitted Investments)
                         in any Person, other than the Company or a Restricted
                         Subsidiary, or

                  (iv)   redeem, defease, repurchase, retire or otherwise
                         acquire or retire for value, prior to its scheduled
                         maturity, repayment or any sinking fund payment,
                         Subordinated Indebtedness (each of the transactions
                         described in clauses (i) through


                                      20

<PAGE>

                         (iv) (other than any exception to any such clause)
                         being a "Restricted Payment");

and at any time after            , 2002, the Company will not, and will not
                      -----------
cause or permit any Restricted Subsidiary to, directly or indirectly, make a
Restricted Payment if, at the time thereof:

              (1) a Default or an Event of Default shall have occurred and be
                  continuing at the time of or after giving effect to such
                  Restricted Payment,

              (2) immediately after giving effect to such Restricted Payment,
                  the Company could not incur at least $1.00 of additional
                  Indebtedness pursuant to Section 4.02(i), and

              (3) immediately after giving effect to such Restricted Payment,
                  the aggregate amount of all Restricted Payments declared or
                  made on or after the Issue Date (including any Designation
                  Amount) exceeds the sum (without duplication) of: (i) the
                  amount of (x) the Consolidated Cash Flow of the Company after
                  [           , 2002,] through the end of the latest full fiscal
                   -----------
                  quarter for which consolidated financial statements of the
                  Company are available preceding the date of such Restricted
                  Payment (treated as a single accounting period) less (y) 150%
                  of the cumulative Consolidated Interest Expense of the Company
                  after [           , 2002,] through the end of the latest full
                         -----------
                  fiscal quarter for which consolidated financial statements of
                  the Company are available preceding the date of such
                  Restricted Payment (treated as a single accounting period),
                  plus (ii) the aggregate net cash proceeds (other than Excluded
                  Cash Proceeds) received by the Company as a capital
                  contribution in respect of Qualified Stock or from the
                  proceeds of a sale of Qualified Stock made after the Issue
                  Date (excluding in each case (x) the proceeds from a sale of
                  Qualified Stock to a Restricted Subsidiary and (y) the
                  proceeds from a sale, other than from a Public Sale, of
                  Qualified Stock the proceeds of which are applied to
                  optionally redeem Notes on or prior to          ,     ), plus
                                                         ---------  ----
                  (iii) the aggregate net cash proceeds received by the Company
                  or any Restricted Subsidiary from the sale or disposition
                  (other than to the Company or a Restricted


                                      21

<PAGE>


                  Subsidiary) or repayment (other than by the Company or a
                  Restricted Subsidiary) of any Investment made after the Issue
                  Date and constituting a Restricted Payment in an amount equal
                  to the lesser of (x) the return of capital with respect to
                  such Investment and (y) the initial amount of such Investment,
                  in either case, less the cost of disposition of such
                  Investment, plus (iv) an amount equal to the consolidated net
                  Investment (including any support provided or liability
                  assumed by the Company or any Restricted Subsidiary pursuant
                  to the penultimate paragraph of Section 4.06 of the Indenture)
                  on the date of Revocation made by the Company and/or any of
                  the Restricted Subsidiaries in any Subsidiary that has been
                  designated as an Unrestricted Subsidiary after the Issue Date
                  upon its redesignation as a Restricted Subsidiary in
                  accordance with Section 4.06 of the Indenture. For purposes of
                  the preceding clause (ii), the value of the aggregate net cash
                  proceeds received by the Company from, or as a capital
                  contribution in connection with, the issuance of Qualified
                  Stock either upon the conversion of convertible Indebtedness
                  of the Company or any of its Restricted Subsidiaries or in
                  exchange for outstanding Indebtedness of the Company or any of
                  its Restricted Subsidiaries or upon the exercise of options,
                  warrants or rights will be the net cash proceeds received by
                  the Company or any of its Restricted Subsidiaries upon the
                  issuance of such Indebtedness, options, warrants or rights
                  plus the incremental amount received by the Company or any of
                  its Restricted Subsidiaries upon the conversions, exchange or
                  exercise thereof. For purposes of the preceding clause (iv),
                  the value of the consolidated net Investment on the date of
                  Revocation shall be equal to the Fair Value of the aggregate
                  amount of the Company's and/or any Restricted Subsidiary's
                  Investments in such Subsidiary on the applicable date of
                  Designation.

For purposes of determining the amount expended for Restricted Payments, cash
distributed shall be valued at the face amount thereof and property other than
cash shall be valued at its Fair Value on the date such Restricted Payment is
made by the Company or a Restricted Subsidiary, as the case may be.

                                      22
<PAGE>


              (b)  The foregoing provisions will not prohibit any of the
                   following:

                   (i)   the payment of any dividend or distribution within
                         sixty (60) days after the date of declaration thereof,
                         if at such date of declaration such payment would
                         comply with the provisions of the Indenture and the
                         Supplemental Indenture;

                   (ii)  so long as no Default or Event of Default shall have
                         occurred and be continuing, the purchase, redemption,
                         retirement or other acquisition of any Capital Stock of
                         the Company out of the net cash proceeds of the
                         substantially concurrent capital contribution to the
                         Company in connection with Qualified Stock or out of
                         the net cash proceeds received by the Company from the
                         substantially concurrent issue or sale (other than to a
                         Restricted Subsidiary) of Qualified Stock; provided
                         that (x) any such net cash proceeds shall be excluded
                         from Section 4.03(a)(3)(ii), (y) such proceeds do not
                         constitute Excluded Cash Proceeds and (z) such
                         proceeds, if from a sale other than a Public Sale are
                         not applied to optionally redeem Notes on or prior to
                                 , 2002;
                         --------

                   (iii) so long as no Default or Event of Default shall have
                         occurred and be continuing, the purchase, redemption,
                         retirement, defeasance or other acquisition of
                         Subordinated Indebtedness of the Company made by
                         exchange for or conversion into, or out of the net cash
                         proceeds received by the Company, or out of a capital
                         contribution to the Company in connection with a
                         concurrent issue and sale (other than to a Restricted
                         Subsidiary) of (a) Qualified Stock (provided that (x)
                         any such net cash proceeds are excluded from Section
                         4.03(a)(3)(ii), (y) such proceeds do not constitute
                         Excluded Cash Proceeds and (z) such proceeds, if from a
                         sale other than a Public Sale, are not applied to
                         optionally redeem Notes on or prior to      , 2002) or
                                                                -----
                         (b) other Subordinated Indebtedness of the Company that
                         has an Average Life equal to or greater than the
                         Average Life of the Subordinated Indebtedness being
                         purchased, redeemed, retired, defeased or otherwise
                         acquired;

                   (iv)  so long as no Default or Event of Default shall have
                         occurred and be continuing, the making of a direct or
                         indirect Investment constituting a Restricted Payment
                         in an amount not to exceed the amount of the proceeds
                         of a

                                      23
<PAGE>

                         concurrent capital contribution in respect of
                         Qualified Stock or from the issue or sale (other than
                         to a Restricted Subsidiary) of Qualified Stock of the
                         Company; provided that (x) any such net cash proceeds
                         are excluded from Section 4.03(a)(3)(ii) and (y) such
                         proceeds do not constitute Excluded Cash Proceeds and
                         (z) such proceeds, if from a sale other than a High
                         Yield Offering are not applied to optionally redeem
                         Notes on or prior to       , 2002; or
                                              ------

                   (v)   so long as no Default or Event of Default has occurred
                         and is continuing, dividends or distributions by the
                         Company to repurchase, redeem, acquire or retire for
                         value any Capital Stock of the Company, held by any
                         member of management of the Company or any of its
                         Subsidiaries pursuant to any management equity
                         subscription agreement, stock option agreement,
                         restricted stock option or other similar agreement;
                         provided that (x) the aggregate amount of such
                         dividends or distributions shall not exceed $5.0
                         million in any twelve-month period and (y) any unused
                         amount in any twelve-month period may be carried
                         forward to one or more future periods.

Restricted Payments made pursuant to clauses (i) and (v) of the immediately
preceding paragraph (b) shall be included in making the determination of
available amounts under Section 4.03(a)(3) and Restricted Payments made pursuant
to (ii), (iii) and (iv) of the immediately preceding paragraph (b) shall not be
included in making the determination of available amounts under Section
4.03(a)(3).

        SECTION 4.4  Payment of Taxes and Other Claims.

        The Company shall pay or discharge or cause to be paid or discharged,
before the same shall become delinquent, all material taxes, assessments and
governmental charges levied or imposed upon the Company or any of its
Subsidiaries or upon the income, profits or property of the Company or any of
its Subsidiaries; provided, that the Company shall not be required to pay or
discharge any claim whose amount, applicability or validity is being contested
in good faith by appropriate proceedings or where the failure to effect such
payment is not adverse in any material respect to the Holders.

        SECTION 4.5  Notice of Defaults.

          Within five (5) days after becoming aware of any Default, if such
Default is then continuing, the Company shall promptly deliver an Officers'
Certificate to the Trustee specifying the details of such Default and the action
which the Company proposes to take with respect thereto.

                                      24
<PAGE>

        SECTION 4.6  Maintenance of Properties.

        The Company shall cause all material properties owned by or leased to
it or any of its Subsidiaries and used or useful in the conduct of its business
or the business of any of its Subsidiaries to be maintained and kept in normal
condition, repair and working order and supplied with all necessary equipment
and shall cause to be made all necessary repairs, renewals, replacements,
betterments and improvements thereof, all as in the judgment of the Company may
be necessary, so that the business carried on in connection therewith may be
properly and advantageously conducted at all times; provided, that nothing in
this Section 4.06 shall prevent the Company or any of its Subsidiaries from
discontinuing the use, operation or maintenance of any of such properties, or
disposing of any of them, if such discontinuance or disposal is, in the judgment
of the Board of Directors or of the board of directors of the Subsidiary
concerned, or of an officer (or other agent employed by the Company or of any of
its Subsidiaries) of the Company or such Subsidiary having managerial
responsibility for any such property, desirable in the conduct of the business
of the Company or any of its Subsidiaries, and if such discontinuance or
disposal is not adverse in any material respect to the Holders.

        SECTION 4.7  Compliance Certificate.

        The Company shall deliver to the Trustee within 45 days after the end
of each of the first three fiscal quarters of the Company and within 90 days
after the close of each fiscal year a certificate signed by the principal
executive officer, principal financial officer or principal accounting officer
stating that a review of the activities of the Company has been made under the
supervision of the signing officers with a view to determining whether a Default
or Event of Default has occurred and whether or not the signers know of any
Default by the Company that occurred during such fiscal quarter or fiscal year.
If they do know of such a Default, the certificate shall describe all such
Defaults, their status and the action the Company is taking or proposes to take
with respect thereto. The first certificate to be delivered by the Company
pursuant to this Section 4.07 shall be for the fiscal quarter ending
            , 1999.
- ------------

        SECTION 4.8  Provision of Financial Information.

        Whether or not required by the rules and regulations of the SEC, so
long as any Series E Notes are outstanding, the Company will furnish to the
Holders of Series E Notes (i) all quarterly and annual financial information
that would be required to be contained in a filing with the SEC on Forms 10-Q
and 10-K if the Company were required to file such Forms, including a
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" that describes the financial condition and results of operations of
the Company and its consolidated Subsidiaries and, with respect to the annual
information only, a report thereon by the Company's certified independent
accountants, and (ii) all current reports that would be required to be filed
with the SEC on Form 8-K if the Company were required to file such reports, in
each case within the time period specified in the SEC's rules and regulations;
provided that no such information or reports shall be required prior to the
earlier to occur of (x) September 30, 2000 and (y) completion by the Company of
a High Yield Offering, and provided further that until such information and
reports are required to be furnished, the Company shall provide the Holders of
the Series E Notes with the same information and reports (at the same times and
with the same

                                      25
<PAGE>

frequency) as the Company provides such information and reports to
the Administrative Agent and the group of banks, under the Senior Credit
Facility.

        SECTION 4.9  Waiver of Stay, Extension or Usury Laws.

        The Company covenants (to the extent that it may lawfully do so) that
it shall not at any time insist upon, plead, or in any manner whatsoever claim
or take the benefit or advantage of, any stay or extension law or any usury law
or other law, which would prohibit or forgive the Company from paying all or any
portion of the principal of and/or interest on the Series E Notes as
contemplated herein, wherever enacted, now or at any time hereafter in force, or
which may affect the covenants or the performance of the Indenture and this
Supplemental Indenture; and (to the extent that it may lawfully do so) the
Company hereby expressly waives all benefit or advantage of any such law, and
covenants that it shall not hinder, delay or impede the execution of any power
herein granted to the Trustee, but shall suffer and permit the execution of
every such power as though no such law had been enacted.

        SECTION 4.10  Limitation on Layered Debt.

        The Company will not (i) directly or indirectly, incur any Indebtedness
that by its terms would expressly rank senior in right of payment to the Notes
and rank subordinate in right of payment to any other Indebtedness of the
Company and (ii) cause or permit any Series E Guarantor to, and no Series E
Guarantor will, directly or indirectly, incur any Indebtedness that by its terms
would expressly rank senior in right of payment to the Series E Guarantee of
such Series E Guarantor and rank subordinate in right of payment to any other
Indebtedness of such Series E Guarantor; provided, that no Indebtedness shall be
deemed to be subordinated solely by virtue of being unsecured. The Company will
not issue any Indebtedness (other than in a High Yield Offering) which by its
terms provides for, or the holders of which would have the right to demand or
participate in, any registration of such Indebtedness or exchange of such
Indebtedness for any other Indebtedness of the Company that is registered under
the Securities Act unless the Company shall have provided equivalent rights to
the Holders.

        SECTION 4.11  Limitation on Restrictions Affecting Restricted
Subsidiaries.

        The Company shall not, and shall not cause or permit any Restricted
Subsidiary to, directly or indirectly, create or otherwise cause or suffer to
exist any consensual encumbrance or restriction of any kind on the ability of
any Restricted Subsidiary to (i) pay, directly or indirectly, dividends, in cash
or otherwise, or make any other distributions in respect of its Capital Stock or
pay any Indebtedness or other obligation owed to the Company or any other
Restricted Subsidiary, (ii) make any Investment in the Company or any other
Restricted Subsidiary or (iii) transfer any of its property or assets to the
Company or any other Restricted Subsidiary, except for such encumbrances or
restrictions existing under or by reason of (a) any agreement in effect on the
Issue Date as any such agreement is in effect on such date, (b) any Senior
Credit Facilities, (c) any agreement relating to any Indebtedness incurred by
such Restricted Subsidiary prior to the date on which such Restricted Subsidiary
was acquired by the Company and outstanding on such date and not incurred in
anticipation or contemplation of becoming a Restricted Subsidiary; provided,
that such encumbrance or restriction shall not apply

                                      26
<PAGE>

to any property or assets of the Company or any Restricted Subsidiary other than
such Restricted Subsidiary, (d) customary provisions contained in an agreement
which has been entered into for the sale or disposition of all or substantially
all the Capital Stock or assets of a Restricted Subsidiary; provided, that such
encumbrance or restriction is applicable only to such Restricted Subsidiary or
its property and assets, (e) any agreement effecting a refinancing or amendment
of Indebtedness incurred pursuant to any agreement referred to in clause (a)
above; provided, that the provisions contained in such refinancing or amendment
agreement relating to such encumbrance or restriction are no more restrictive in
any material respect than the provisions contained in the agreement that is the
subject thereof in the reasonable judgment of the Board of Directors of the
Company, (f) the Indenture, (g) applicable law or any applicable rule,
regulation or order, (h) customary provisions restricting subletting or
assignment of any lease governing any leasehold interest of any Restricted
Subsidiary, (i) purchase money obligations for property acquired in the ordinary
course of business that impose restrictions of the type referred to in clause
(iii) of this Section 4.11; (j) restrictions of the type referred to in clause
(iii) of this Section 4.11 contained in security agreements securing
Indebtedness of a Restricted Subsidiary to the extent that such Liens were
otherwise incurred in accordance with Section 4.12 and restrict the transfer of
property subject to such agreements; or (k) customary provisions in joint
venture agreements and other similar agreements entered into in the ordinary
course of business.

        SECTION 4.12  Limitation on Liens.

        The Company shall not, and shall not cause or permit any Restricted
Subsidiary to directly or indirectly, create, cause, incur or suffer to exist
any Lien on or with respect to any Capital Stock or any property or assets of
the Company or such Restricted Subsidiary owned on the Issue Date or thereafter
created or acquired to secure any Indebtedness, without making, or causing such
Restricted Subsidiary to make, effective provision for securing the Series E
Notes and all other amounts due under the Indenture equally and ratably with
such Indebtedness or, in the event such Indebtedness is Subordinated
Indebtedness, prior to such Indebtedness, as to such property or assets for so
long as such Indebtedness shall be so secured.

        The foregoing restrictions shall not apply to (i) Liens existing on
the Issue Date securing Indebtedness existing on the Issue Date; (ii) Liens
securing Senior Debt (including Liens securing Indebtedness under any Senior
Credit Facilities) and any guarantees thereof to the extent that the
Indebtedness secured thereby is permitted to be incurred under Section 4.02;
(iii) Liens securing only the Series E Notes and the Guarantees, if any; (iv)
Liens in favor of the Company or any Guarantor; (v) Liens to secure Indebtedness
incurred in connection with Vendor Credit Agreements; (vi) Liens on property
existing immediately prior to the time of acquisition thereof (and not created
in connection with or in anticipation or contemplation of the financing of such
acquisition); (vii) Liens on property of a Person existing at the time such
Person is acquired or merged with or into or consolidated with the Company or
any such Restricted Subsidiary (and not created in connection with or in
anticipation or contemplation thereof); (viii) Liens to secure the performance
of statutory obligations, surety or appeal bonds or bid or performance bonds, or
landlords', carriers', warehousemen's, mechanics', suppliers', materialmen's or
other similar Liens, in any case incurred in the ordinary course of business and
with respect to amounts not yet delinquent or being contested in good faith by
appropriate
                                      27
<PAGE>

process of law, if a reserve or other appropriate provision, if any, as is
required by GAAP shall have been made therefor; (ix) Liens for taxes,
assessments or governmental charges or claims that are not yet delinquent or
that are being contested in good faith by appropriate proceedings promptly
instituted and diligently concluded; provided that any reserve or other
appropriate provision that shall be required in conformity with GAAP shall have
been made therefor; (x) restrictions on the transfer of assets contained in any
FCC License or any other telecommunications license or imposed by the
Communications Act or comparable state legislation enacted after the date
hereof; (xi) Liens in favor of the FCC or the United States Treasury to secure
FCC Debt permitted under Section 4.02(ix); provided such Liens are limited to
the FCC Licenses subject to such Debt; (xii) liens to secure Indebtedness
incurred to refinance, in whole or in part, any Indebtedness secured by Liens
referred to in the foregoing clauses (i)-(xi) so long as such Liens do not
extend to any additional category of property and the principal amount of
Indebtedness so secured is not increased except for the amount of any premium
required to be paid in connection with such refinancing pursuant to the terms of
the Indebtedness refinanced or the amount of any premium reasonably determined
by the Company as necessary to accomplish such refinancing by means of a tender
offer, exchange offer or privately negotiated repurchase, plus the expenses of
the issuer of such Indebtedness reasonably incurred in connection with such
refinancing; and (xiii) Liens in favor of the Trustee as provided for in the
Indenture on money or property held or collected by the Trustee in its capacity
as Trustee.

        SECTION 4.13  Subsidiary Guarantees.

        The Company shall not permit any Subsidiary (other than any Special
Purpose Subsidiary, as defined in the Credit Facility) to become a direct or
indirect obligor under, or in respect of, any Senior Credit Facilities without
causing such Subsidiary to become a Guarantor. Any such Subsidiary shall (a)
execute and deliver a supplemental indenture in form and substance reasonably
satisfactory to the Trustee and in compliance with the requirements, if any, of
the Senior Credit Facility pursuant to which such Subsidiary shall
unconditionally guarantee all the Company's obligations under the Series E Notes
and the Indenture and (b) deliver to the Trustee an Opinion of Counsel that such
supplemental indenture has been duly authorized, executed and delivered by such
Subsidiary and constitutes a valid and legally binding and enforceable
obligation of such Subsidiary (subject, in the case of enforceability, to
customary bankruptcy, insolvency, fraudulent conveyance, general principles of
equity and similar exceptions).

        The Company may, at its option, cause any of its Subsidiaries to be a
Guarantor.

        SECTION 4.14  Limitation on Activities of the Company and the Restricted
Subsidiaries.

        The Company shall not, and shall not permit any Restricted Subsidiary
to, engage in any business other than a Permitted Business, except to such
extent as is not material to the Company and its Restricted Subsidiaries, taken
as a whole.

        SECTION 4.15  Amendments to Agreements.

                                      28
<PAGE>

        The Company shall not amend, modify or waive, or refrain from
enforcing, any provision of (i) the Securities Purchase Agreement in any manner
that would materially alter the obligations of the Cash Equity Investors or the
Management Stockholders (as each such term is defined in the Securities Purchase
Agreement) thereunder to provide additional equity capital to the Company until
such time as the Company has received subsequent to the Issue Date, net cash
proceeds from capital contributions, or sales, in respect of Qualified Stock of
the Company equal to at least [$72,499,990]; (ii) the Puerto Rico Stock Purchase
Agreement in any manner that would materially alter the obligations of the
investors thereunder to provide at least $39.996 million of additional equity
for the development of the San Juan MTA within [3 years] after the closing of
such transaction; (iii) the Asset Purchase Agreement  in any manner that would
adversely affect the rights of the Company thereunder in any material respect;
and (iv) the Related Agreements and the Related Agreement Amendments (each as
defined in the Asset Purchase Agreement) in any manner that would affect the
rights of the Company thereunder in any material respect. whole.



        SECTION 4.16  Limitation on Pari Passu Debt.

        The Company shall not incur any Indebtedness, other than the Series D
Notes, that ranks pari passu with the Series E Notes.

        SECTION 4.17  Limitation on Optional Redemptions of Series C Notes.

        The Company shall not optionally prepay or optionally redeem any
amount of Series C Notes until the Series E Notes shall have been redeemed in
full, it being understood that this limitation shall not apply to any mandatory
redemption or prepayment of the Series C Notes.

                                   ARTICLE V

                               EVENTS OF DEFAULT

        [Reserved.]

                                  ARTICLE VI

                                 SUBORDINATION

        SECTION 6.1  Series E Notes Subordinate to Senior Debt.

        The Company covenants and agrees, and the Trustee and each Holder of a
Series E Note, by its acceptance thereof, likewise covenants and agrees, that,
to the extent and in the manner hereinafter set forth in this Article 6, the
payment of the principal of, premium, if any, and interest on each and all the
Series E Notes and the repurchase, redemption or other retirement of the Series
E Notes is hereby expressly made subordinate and subject in right of

                                      29
<PAGE>

payment to the prior payment in full in cash or cash equivalents or, as
acceptable to the holders of Senior Debt, in any other manner, of all Senior
Debt in the manner set forth in this Article 6. The terms of this Article 6 are
for the benefit of, and shall be enforceable directly by, each holder of Senior
Debt, and each holder of Senior Debt whether now outstanding or hereafter
created, incurred, assumed or guaranteed shall be deemed to have acquired such
Senior Debt in reliance upon the covenants and provisions contained herein.

        SECTION 6.2  Payment of Proceeds Upon Dissolution, Etc.

        Upon any payment or distribution of assets of the Company to creditors
upon any liquidation, dissolution, winding-up, reorganization, assignment for
the benefit of creditors, marshaling of assets or liabilities or any bankruptcy,
reorganization, receivership, insolvency or similar proceedings of the Company
or its property, whether voluntary or involuntary (each such event, if any,
herein sometimes referred to as a "Proceeding"):

              (a)  The holders of Senior Debt shall receive payment in full in
                   cash or cash equivalents or, as acceptable to the holders of
                   Senior Debt, in any other manner, of all amounts due on or to
                   become due on or in respect of all Senior Debt (including any
                   interest accruing thereon after the commencement of any such
                   Proceeding, whether or not allowed as a claim against the
                   Company in such Proceeding) or provision shall be made for
                   such payment in a manner acceptable to such holders before
                   the Trustee or the Holders of the Series E Notes are entitled
                   to receive any payment or distribution whether by setoff,
                   exercising contractual or statutory rights or otherwise and
                   whether in the form of cash, stock or property or otherwise
                   (excluding any payment or distribution described in the last
                   paragraph of Section 6.02(b)), on account of the principal
                   of, premium, if any, interest on or any other obligation
                   owing in respect of the Series E Notes or on account of any
                   purchase, redemption or other acquisition of Series E Notes
                   by the Company (all such payments, distributions, purchases,
                   redemptions and acquisitions, whether or not in connection
                   with a Proceeding (but excluding any payment or distribution
                   described in the last paragraph of Section 6.02(b)), being
                   herein referred to, individually and collectively, as a
                   "Securities Payment"); and

              (b)  Any payment or distribution of assets of the Company of any
                   kind or character, whether in cash, property or securities,
                   by set-off or otherwise, to which the Trustee or the Holders
                   of the Series E Notes would be entitled but for the
                   provisions of this Article 6, shall be paid by the Company or
                   the liquidating trustee or agent or other Person making such
                   payment or distribution, whether a trustee in bankruptcy, a
                   receiver or liquidating trustee or otherwise, directly to the
                   holders of Senior Debt or their representatives or trustees
                   under any credit agreement, indenture or other agreement

                                      30
<PAGE>

                   under which any such Senior Debt may have been issued,
                   ratably according to the aggregate amounts remaining unpaid
                   on account of the Senior Debt held or represented by each, to
                   the extent necessary to make payment in full in cash or cash
                   equivalents or, as acceptable to the holders of Senior Debt,
                   in any other manner, of all Senior Debt remaining unpaid,
                   after giving effect to any concurrent payment or distribution
                   to the holders of such Senior Debt.

        In the event that, notwithstanding the foregoing provisions of this
section, the Trustee or the Holder of any Series E Notes shall have received in
connection with any Proceeding any Securities Payment before all Senior Debt is
paid in full or payment thereof is provided for in cash or cash equivalents,
then and in such event such Securities Payment shall be held in trust for the
benefit of and paid over or delivered forthwith to the trustee in bankruptcy,
receiver, liquidating trustee, custodian, assignee, agent or other Person making
payment or distribution of assets of the Company for application to the payment
of all Senior Debt remaining unpaid, to the extent necessary to make payment in
full in cash or cash equivalents or, as acceptable to the holders of the Senior
Debt, in any other manner, of all Senior Debt remaining unpaid after giving
effect to any concurrent payment to or for the holders of Senior Debt.

        For purposes of this Article 6 only, the words "payment or
distribution" or "any payment or distribution of any kind or character, whether
in cash, property or securities" shall not be deemed to include a payment or
distribution of stock or securities of the Company provided for by a plan of
reorganization or readjustment authorized by an order or decree of a court of
competent jurisdiction in a reorganization proceeding under any applicable
bankruptcy law or of any other corporation provided for by such plan of
reorganization or readjustment, which stock or securities are subordinated in
right of payment to all then outstanding Senior Debt to substantially the same
extent, or to a greater extent than, the Series E Notes are so subordinated as
provided in this Article 6.  The consolidation of the Company with, or the
merger of the Company into, another Person or the liquidation or dissolution of
the Company following the conveyance, transfer or lease of all or substantially
all of its properties and assets to another Person and so long as permitted
under the terms of the Senior Debt shall not be deemed a Proceeding for the
purposes of this section if the Person formed by such consolidation or into
which the Company is merged or the Person which acquires by conveyance, transfer
or lease such properties and assets, as the case may be, shall, as a part of
such consolidation, merger, conveyance, transfer or lease, comply with the
conditions set forth in Article 6.

              (c)  To the extent any payment of Senior Debt (whether by or on
                   behalf of the Company, as proceeds of security or enforcement
                   of any right of setoff or otherwise) is declared to be
                   fraudulent or preferential, set aside or required to be paid
                   to any receiver, trustee in bankruptcy, liquidating trustee,
                   agent or other similar Person under any bankruptcy,
                   insolvency, receivership, fraudulent conveyance or similar
                   law, then if such payment is recovered by, or paid over to,
                   such receiver, trustee in bankruptcy, liquidating trustee,
                   agent or other similar Person, the Senior Debt or part

                                      31
<PAGE>

                   thereof originally intended to be satisfied shall be deemed
                   to be reinstated and outstanding as if such payment had not
                   occurred.

        SECTION 6.3   No Payment When Designated Senior Debt in Default.

        In the event that any  Senior Payment Default shall have occurred and
be continuing, then no Securities Payment whether by setoff, exercising
contractual or statutory rights or otherwise and whether in the form of cash,
stock or property or otherwise shall be made, unless and until such Senior
Payment Default shall have been cured or waived in writing or shall have ceased
to exist or all amounts then due and payable in respect of such Designated
Senior Debt (including, without limitation, amounts that have become and remain
due by acceleration) shall have been paid in full in cash.  "Senior Payment
Default" means any default in the payment of the principal of, premium, if any,
or interest on any Designated Senior Debt when due, whether at the stated
maturity of any such payment or by declaration of acceleration, call for
redemption, notice of the exercise of an option to require such repayment,
mandatory payment or prepayment or otherwise.

        In the event that any Senior Nonmonetary Default shall have occurred
and be continuing, then, upon the receipt by the Company of written notice of
such Senior Nonmonetary Default from the administrative agent under the Credit
Facility (the "Administrative Agent") to which such Senior Nonmonetary Default
relates or, if no loans or other amounts are then outstanding under the Credit
Facility or any renewal, extension or refunding thereof, and the Credit Facility
and any such renewal, extension or refunding have been terminated, upon receipt
of such notice by or on behalf of any other holder or holders of Designated
Senior Debt in an aggregate amount in excess of $25,000,000, no Securities
Payment shall be made whether by setoff, exercising contractual or statutory
rights or otherwise and whether in the form of cash, stock or property or
otherwise during the period (the "Payment Blockage Period") commencing on the
date of such receipt by the Company of such written notice and ending on the
earlier of (a) the date, if any, on which the Designated Senior Debt to which
such Senior Nonmonetary Default relates is discharged or such Senior Nonmonetary
Default shall have been cured or waived in writing or shall have ceased to exist
and any acceleration of Designated Senior Debt to which such Senior Nonmonetary
Default relates shall have been rescinded or annulled and (b) the 179th day
after the date of receipt of such written notice.  No more than one Payment
Blockage Period may be commenced with respect to the Series E Notes during any
period of 360 consecutive days and there shall be a period of at least 181
consecutive days in each period of 360 consecutive days when no Payment Blockage
Period is in effect.  Following the commencement of any Payment Blockage Period,
the holders of Designated Senior Debt shall be precluded from commencing a
subsequent Payment Blockage Period until the conditions set forth in the
preceding sentence shall have been satisfied. For all purposes of this
paragraph, no Senior Nonmonetary Default that existed and was continuing on the
date of commencement of any Payment Blockage Period with respect to the
Designated Senior Debt initiating such Payment Blockage Period shall be, or may
be made, the basis for the commencement of a subsequent Payment Blockage Period
by any holder of Designated Senior Debt or any representative or trustee under
any indenture under which any such Designated Senior Debt may have been issued
unless such Senior Nonmonetary Default shall have been cured for a period of not
less than 90 consecutive days.  "Senior Nonmonetary Default" means any default
(other than

                                      32
<PAGE>

a Senior Payment Default), under the terms of any instrument or agreement
pursuant to which any Senior Debt is outstanding, permitting one or more holders
of such Designated Senior Debt or any representative or trustee under any
indenture under which any such Designated Senior Debt may have been issued to
declare such Designated Senior Debt due and payable prior to the date on which
it would otherwise become due and payable.

        In the event that, notwithstanding the foregoing, the Company shall
make any Securities Payment to any holder prohibited by the foregoing provisions
of this Section 6.03, then in such event such Securities Payment shall be held
in trust and paid over and delivered forthwith to the representatives or trustee
under any indenture under which any such Designated Senior Debt may have been
issued ratably according to the aggregate amounts remaining unpaid on account of
the Designated Senior Debt held or represented by under the Designated Senior
Debt or, if there is no such representative or trustee with respect to such
Designated Senior Debt, to the holders of such Designated Senior Debt.

        The provisions of this Section 6.03 shall not apply to any Securities
Payment with respect to which Section 6.02 hereof would be applicable.

        SECTION 6.4  Acceleration of Series E Notes.

        If an Event of Default shall have occurred and be continuing (other
than an Event of Default pursuant to paragraphs (ix) and (x) of Section 6.01 of
the Indenture), the Trustee shall give the holders of the Designated Senior Debt
not less than 30 days prior written notice before accelerating the Series E
Notes which notice shall state it is a "Notice of Intent to Accelerate".  Upon
such declaration, the holders of Designated Senior Debt outstanding at the time
the Series E Notes so become due and payable shall be entitled to receive
payment in full in cash, cash equivalents or, as acceptable to the holders of
the Designated Senior Debt, in any other manner on all amounts due or to become
due on or in respect of such Designated Senior Debt, before the Company may
make, and before any Holder of the Series E Notes is entitled to receive, any
payment or distribution of assets of the Company of any kind or character,
whether in cash, securities or other property on account of any Series E Notes.
All payments in respect of the Subordinated Debt postponed under this Section
6.04 shall be immediately due and payable upon the termination of such
postponement; the remittance in full of such payments by the Company in
accordance with the terms of the this Supplemental Indenture and the acceptance
thereof by the Holders of the Series E Notes shall be deemed to constitute a
cure by the Company and a waiver by the Holders of the Series E Notes of any
Event of Default that existed immediately prior to such remittance and
acceptance to the extent that such Event of Default existed solely as a
consequence of the previous non-payment of such postponed payments during such
period of postponement.

        SECTION 6.5  Payment Permitted If No Default.

        Nothing contained in this Article 6 or elsewhere in this Supplemental
Indenture or in any of the Series E Notes shall prevent the Company, at any time
except during the pendency of any Proceeding referred to in Section 6.02 or
under the conditions described in Section 6.03, from making Securities Payments
in accordance with the terms of this Supplemental Indenture.

                                     33
<PAGE>

Nothing in this Article 6 shall have any effect on the right of the Trustee (on
behalf of the Holders) or the Holders to accelerate the maturity of the Series E
Notes upon the occurrence of an Event of Default, but, in that event, no payment
may be made in violation of the provisions of this Article 6 with respect to the
Series E Notes. If payment of the Series E Notes is accelerated because of an
Event of Default, the Company shall promptly notify the holders of the Senior
Debt (or their representatives) of such acceleration.

        SECTION 6.6  Obligation of Company Unconditional.

          Nothing contained in this Article 6 or elsewhere in this Supplemental
Indenture or in the Series E Notes is intended to or shall impair, as among the
Company and the Holders of the Series E Notes, the obligation of the Company,
which is absolute and unconditional, to pay to the Holders of the Series E Notes
the principal of, premium, if any, and interest on the Series E Notes as and
when the same shall become due and payable in accordance with their terms, or is
intended to or shall affect the relative rights of the Holders of the Series E
Notes and creditors of the Company other than the holders of the Senior Debt,
nor shall anything herein or therein prevent any Holder or the Trustee on their
behalf from exercising all remedies otherwise permitted by applicable law upon
default under this Supplemental Indenture, subject to the rights, if any, under
this Article 6 of the holders of the Senior Debt in respect of cash, property or
securities of the Company received upon the exercise of any such remedy.

        Without limiting the generality of the foregoing, nothing contained in
this Article 6 shall restrict the right of the Trustee or the Holders of the
Series E Notes to take any action to declare the Series E Notes to be due and
payable prior to their stated maturity pursuant to Section 5.01 or to pursue any
rights or remedies hereunder; provided, however, that all Senior Debt then due
and payable shall first be paid in full before the Holders or the Trustee are
entitled to receive any direct or indirect payment from the Company of principal
of or interest on the Series E Notes.

        SECTION 6.7  Subrogation To Rights of Holders of Senior Debt.

        Subject to the payment in full in cash or cash equivalents, or as
acceptable to the holders of Senior Debt, in any other manner, of all Senior
Debt, the Trustee and the Holders of the Series E Notes shall be subrogated to
the rights of the holders of such Senior Debt to receive payments and
distributions of cash, property and securities applicable to the Senior Debt
until the principal of, premium, if any, and interest on the Series E Notes
shall be paid in full.  For purposes of such subrogation, no payments or
distributions to the holders of the Senior Debt of any cash, property or
securities to which the Trustee and the Holders of the Series E Notes would be
entitled except for the provisions of this Article 6, and no payments pursuant
to the provisions of this Article 6 to the holders of Senior Debt by Holders of
the Series E Notes, shall, as among the Company, its creditors other than
holders of Senior Debt and the Holders of the Series E Notes, be deemed to be a
payment or distribution by the Company to or on account of the Senior Debt.

        SECTION 6.8  Provisions Solely To Define Relative Rights.

                                      34
<PAGE>

        The provisions of this Article 6 are and are intended solely for the
purpose of defining the relative rights of the Trustee and the Holders of the
Series E Notes on the one hand and the holders of Senior Debt on the other hand.
Nothing contained in this Article 6 or elsewhere in this Supplemental Indenture
or in the Series E Notes is intended to or shall (a) impair, as among the
Company, its creditors other than holders of Senior Debt and the Trustee and the
Holders of the Series E Notes, the obligation of the Company, which is absolute
and unconditional (and which, subject to the rights under this Article 6 of the
holders of Senior Debt, is intended to rank equally with all other general
obligations of the Company), to pay to the Trustee for the Holders of the Series
E Notes the principal of, premium, if any, and interest on the Series E Notes as
and when the same shall become due and payable in accordance with their terms;
or (b) affect the relative rights against the Company of the Trustee, the
Holders of the Series E Notes and creditors of the Company other than the
holders of Senior Debt; or (c) prevent the Trustee or any Holder of any Series E
Note from exercising all remedies otherwise permitted by applicable law upon
default under this Supplemental Indenture, subject to this Article 6, including
the rights, if any, under this Article 6 of the holders of Senior Debt to
receive cash, property and securities otherwise payable or deliverable to such
holder or, under the conditions specified in Section 6.03, to prevent any
payment prohibited by such section or enforce their rights pursuant to the
penultimate paragraph in Article 6.

        SECTION 6.9  No Waiver of Subordination Provisions.

        No right of any present or future holder of any Senior Debt to enforce
the subordination provisions provided herein shall at any time in any way be
prejudiced or impaired by any act or failure to act on the part of the Company
or by any act or failure to act, in good faith, by any such holder, or by any
noncompliance by the Company with the terms, provisions and covenants of this
Supplemental Indenture, regardless of any knowledge thereof that any such holder
may have or be otherwise charged with.

        Without in any way limiting the generality of the foregoing paragraph,
the holders of Senior Debt may, at any time and from time to time, without the
consent of or notice to the Holders of the Series E Notes, without incurring
responsibility to the Holders of the Series E Notes and without impairing or
releasing the subordination provided in this Article 6 or the obligations
hereunder of the Trustee or Holders of the Series E Notes to the holders of
Senior Debt, do any one or more of the following: (a) change the manner, place
or terms of payment or extend the time of payment of, or renew, refinance or
alter, any Senior Debt, or otherwise amend or supplement in any manner any
Senior Debt or any instrument evidencing the same or any agreement under which
such Senior Debt is outstanding; (b) permit the Company to borrow, repay and
then reborrow any or all the Senior Debt; (c) sell, exchange, release or
otherwise deal with any property pledged, mortgaged or otherwise securing Senior
Debt; (d) release any Person liable in any manner for the collection of Senior
Debt; (e) exercise or refrain from exercising any rights against the Company and
any other Person; and (f) apply any sums received by such holders to Senior
Debt.

        SECTION 6.10  Reliance On Judicial Order or Certificate of Liquidating
Agent.

                                      35
<PAGE>


        Upon any payment or distribution of assets of the Company referred to
in this Article 6, the Trustee and the Holders of the Series E Notes shall be
entitled to rely upon any order or decree entered by any court of competent
jurisdiction in which such Proceeding is pending, or a certificate of the
receiver, trustee in bankruptcy, liquidation trustee, custodian, assignee for
the benefit of creditors, agent or other Person making such payment or
distribution, delivered to the Trustee or to the Holders for the purpose of
ascertaining the Persons entitled to participate in such payment or
distribution, the holders of the Senior Debt, the amount thereof or payable
thereon, the amount or amounts paid or distributed thereon and all other facts
pertinent thereto or to this Article 6; provided that the foregoing shall apply
only if such court has been apprised of the provisions of this Article 6.

        SECTION 6.11  Notice to Trustee.

        The Company shall give prompt written notice to the Trustee of any
fact known to the Company which would prohibit the making of any payment to or
by the Trustee in respect of the Series E Notes pursuant to the provisions of
this Article 6.  Failure to give such notice to the Trustee shall not affect the
subordination of the Series E Notes to Senior Debt.  The Trustee shall not be
charged with knowledge of the existence of any default or event of default with
respect to any Senior Debt or of any other facts which would prohibit the making
of any payment to or by the Trustee unless and until the Trustee shall have
received notice in writing to that effect signed by an officer of the Company,
or by a holder of any Senior Debt or trustee or agent therefor; and prior to the
receipt of any such written notice, the Trustee shall, subject to Article 7 of
the Indenture, be entitled to assume that no such facts exist; provided,
however, that if the Trustee shall not have received the notice provided for in
this Section 6.11 at least three Business Days prior to the date upon which by
the terms of this Supplemental Indenture any moneys shall become payable for any
purpose (including, without limitation, the payment of the principal of,
premium, if any, or interest on any Series E Note), then, regardless of anything
herein to the contrary, the Trustee shall have full power and authority to
receive any moneys from the Company and to apply the same to the purpose for
which they were received, and shall not be affected by any notice to the
contrary which may be received by it on or after such prior date.  Nothing
contained in this Section 6.11 shall limit the right of the holders of Senior
Debt to recover payments as contemplated by Article 6.  The Trustee shall be
entitled to rely on the delivery to it of a written notice by a Person
representing himself or itself to be a holder of any  Senior Debt (or a trustee
on behalf of, or other representative of, such holder) to establish that such
notice has been given by a holder of such Senior Debt or a trustee or
representative on behalf of any such holder.

        In the event that the Trustee determines in good faith that any
evidence is required with respect to the right of any Person as a holder of any
Senior Debt to participate in any payment or distribution pursuant to this
Article 6, the Trustee may request such Person to furnish evidence to the
reasonable satisfaction of the Trustee as to the amount of such Senior Debt held
by such Person, the extent to which such Person is entitled to participate in
such payment or distribution and any other facts pertinent to the rights of such
Person under this Article 6, and if such evidence is not furnished, the Trustee
may defer any payment to such Person pending judicial determination as to the
right of such Person to receive such payment.

                                      36
<PAGE>

        SECTION 6.12  Trustee's Relation to Senior Debt.

        The Trustee shall be entitled to all the rights set forth in this
Article 6 with respect to any Senior Debt which may at any time be held by it in
its individual or any other capacity to the same extent as any other holder of
such Senior Debt, and nothing in this Indenture shall deprive the Trustee of any
of its rights as such holder.

        With respect to the holders of any Senior Debt, the Trustee undertakes
to perform or to observe only such of its covenants and obligations as are
specifically set forth in this Article 6, and no implied covenants or
obligations with respect to the  holders of such Senior Debt shall be read into
this Supplemental Indenture against the Trustee.  The Trustee shall not be
deemed to owe any fiduciary duty to the holders of any Senior Debt (except as
provided in Section 6.02(b)).  The Trustee shall not be charged with knowledge
of the existence of any Senior Debt or of any facts that would prohibit any
payment hereunder unless the Trustee shall have received written notice to that
effect at the address of the Trustee set forth in Section 11.01 of the
Indenture.

        SECTION 6.13  Series E Note Holders Authorize Trustee to Effectuate
Subordination.

        Each Holder of Series E Notes by its acceptance of such Series E Notes
authorizes and expressly directs  the Trustee on its behalf to take such action
as may be necessary or appropriate to effectuate the subordination provided in
this Article 6, and appoints the Trustee its attorney-in-fact for such purposes,
including, in the event of any dissolution, winding up, liquidation or
reorganization of the Company (whether in bankruptcy, insolvency, receivership,
reorganization or similar proceedings or upon an assignment for the benefit of
creditors or otherwise) tending towards liquidation of the business and assets
of the Company, the filing of a claim for the unpaid balance of its Series E
Notes in the form required in those proceedings.

        SECTION 6.14  This Article Not to Prevent Event of Default.

        The failure to make a payment on account of principal of, premium, if
any or interest on the Series E Notes by reason of any provision of this Article
6 shall not be construed as preventing the occurrence of an Event of Default
specified in Section 6.01(i), (ii) or (iii) of the Indenture.

        SECTION 6.15  Trustee's Compensation Not Prejudiced.

        Nothing in this Article 6 shall apply to amount due to the Trustee
pursuant to other sections in this Supplemental Indenture or in the Indenture.

        SECTION 6.16  Subordination Provisions Not Applicable to Money Held in
Trust for Holders of Series E Notes; Payments May Be Paid prior to Dissolution.

        All money and United States Government Securities deposited in trust
with the Trustee pursuant to and in accordance with Article 8 of the Indenture
shall be for the sole benefit of the Holders of the Series E Notes and shall not
be subject to this Article 6.

                                      37
<PAGE>

        Nothing contained in this Article or elsewhere in this Supplemental
Indenture shall prevent (i) the Company, except under the conditions described
in Section 6.03, from making payments of principal of and interest on the Series
E Notes, or from depositing with the Trustee any moneys for such payments or
from effecting a termination of the Company's and each Guarantor's obligations
under the Series E Notes and this Supplemental Indenture as provided in Article
8 of the Indenture, or (ii) the application by the Trustee of any moneys
deposited with it for the purposed of making such payments of principal of,
premium, if any, and interest on the Series E Notes, to the Holders entitled
thereto unless at least three Business Days prior to the date upon which such
payment becomes due and payable, the Trustee shall have received the written
notice provided for in Section 6.11.


                                  ARTICLE VII

                                  TAX MATTERS

        SECTION 7.1  Taxes.

              (a)  All payments made by the Company under this Supplemental
                   Indenture and the Series E Notes shall be made free and clear
                   of, and without deduction or withholding for or on account
                   of, any present or future income, stamp or other taxes,
                   levies, imposts, duties, charges, fees, deductions or
                   withholdings, now or hereafter imposed, levied, collected,
                   withheld or assessed by any Governmental Authority, excluding
                   net income taxes and franchise or overall gross receipts
                   taxes imposed on any holder (or any transferee permitted
                   under Section 2.15 of the Indenture (a "Transferee")) as a
                   result of a present or former connection between such holder
                   (or Transferee) and the jurisdiction of the Governmental
                   Authority imposing such tax or any political subdivision or
                   taxing authority thereof or therein (other than any such
                   connection arising solely from such holder (or Transferee)
                   having executed, delivered or performed its obligations or
                   received a payment under, or enforced, this Agreement or the
                   Notes). If any such non-excluded taxes, levies, imposts,
                   duties, charges, fees, deductions or withholdings ("Non-
                   Excluded Taxes") are required to be withheld from any amounts
                   payable to any holder (or Transferee) hereunder or under the
                   Series E Notes, the amounts so payable to such holder (or
                   Transferee) shall be increased to the extent necessary to
                   yield to such holder (or Transferee) (after payment of all
                   Non-Excluded Taxes) interest or any such other amounts
                   payable hereunder at the rates or in the amounts specified in
                   this Supplemental Indenture and the Series E Notes; provided
                   that the Company shall not be required to increase any such
                   amounts payable to any holder (or Transferee) that is not
                   organized under the laws of the United States of America or a
                   state thereof if such holder (or Transferee) fails to comply
                   with the requirements

                                      38
<PAGE>

                   of paragraph (b) of this section. Whenever any Non-Excluded
                   Taxes are payable by the Company, as promptly as possible
                   thereafter, the Company shall send to such holder (or
                   Transferee) a certified copy of an original official receipt
                   received by the Company showing payment thereof. If the
                   Company fails to pay any Non-Excluded Taxes when due to the
                   appropriate taxing authority or fails to remit to the holder
                   (or Transferee) the required receipts or other required
                   documentary evidence, the Company shall indemnify such holder
                   or (Transferee) for any incremental taxes, interest or
                   penalties that may become payable by any holder or
                   (Transferee) as a result of any such failure. The covenants
                   in this section shall survive the termination of the
                   Indenture, the Supplemental Indenture and the payment of the
                   Series E Notes and payment of the obligations hereunder and
                   thereunder.

              (b)  Each holder (or Transferee) of any Notes shall:


                   (i)  in the case of a holder (or Transferee) that is a
                        "bank" under Section 881(c)(3)(A) of the Code;

                        (1)  on or before the date on which the first payment
                             becomes payable to it hereunder or under any Note
                             (or in the case of a Person who acquires a
                             participating interest in any of the Series E Notes
                             (a "Participant"), on or before the date such
                             Participant becomes a Participant hereunder)
                             deliver to the Company (1) in the case of a holder
                             (or Transferee) that is not incorporated under the
                             laws of the United States or any State thereof, two
                             duly completed copies of United States Internal
                             Revenue Service Form 1001 or 4224, or successor
                             applicable form, as the case may be, and an
                             Internal Revenue Service Form W-8 or W-9, or
                             successor applicable form, as the case may be, and
                             (2) in the case of any other holder (or
                             Transferee), an Internal Revenue Service Form W-9,
                             or successor applicable form;

                        (2)  deliver to the Company two further copies of any
                             such form or certification on or before the date
                             that any such form or certification expires or
                             becomes obsolete and after the occurrence of any
                             event requiring a change in the most recent form
                             previously delivered by it to the Company, and

                                      39
<PAGE>

                        (3)  obtain such extensions of time for filing and
                             timely complete and deliver such forms or
                             certifications as may reasonably be requested by
                             the Company;

                   (ii) in the case of a holder (or Transferee) that is not a
                        "bank" under Section 881(c)(3)(A) of the Code:

                        (1)  on or before the date on which the first payment
                             becomes payable to it hereunder or under any Note
                             (or, in the case of a Participant, on or before the
                             date such Participant becomes a Participant
                             hereunder) deliver to the Company (1) in the case
                             of a holder (or Transferee) that is not organized
                             under the laws of the United States or any state
                             thereof, (I) a statement under penalties of perjury
                             that such holder (or Transferee) (x) is not a
                             "bank" under Section 881(c)(3)(A) of the Code, is
                             not subject to regulatory or other legal
                             requirements as a bank in any jurisdiction, and has
                             not been treated as a bank for purposes of any tax,
                             securities law or other filing or submission made
                             to any Governmental Authority, any application made
                             to a rating agency or qualification for any
                             exemption from tax, securities law or other legal
                             requirements, (y) is not a 10-percent shareholder
                             of the Company within the meaning of Section
                             881(c)(3)(B) of the Code and (z) is not a
                             controlled foreign corporation receiving interest
                             from a related person within the meaning of Section
                             881(c)(3)(C) of the Code and (II) a properly
                             completed and duly executed Internal Revenue
                             Service Form W-8 or applicable successor form, and
                             where applicable, an Internal Revenue Form W-9 or
                             applicable successor form, and (2) in the case of
                             any other holder (or Transferee), an Internal
                             Revenue Service Form W-9 or successor applicable
                             form.

                        (2)  deliver to the Company two further properly
                             completed and duly executed copies of said form or
                             certification or any successor applicable form or
                             certification on or before the date that any such
                             form or certification expires or becomes obsolete
                             or after the occurrence of any event requiring a
                             change in the most recent form or certification
                             previously delivered by it to the Company or upon
                             the request of the Company; and

                                      40
<PAGE>

                        (3)  obtain such extensions of time for filing and
                             timely complete and deliver such forms or
                             certifications as may be reasonably requested by
                             the Company;

unless in any such case any change in treaty, law or regulation has occurred
subsequent to the date such holder (or Transferee) became a party to this
Agreement (or, in the case of a Participant, the date such Participant became a
Participant hereunder) which renders all such forms inapplicable or which would
prevent such holder from properly completing and executing any such form with
respect to it and such holder (or Transferee) so advises the Company in writing
no later than 15 calendar days before any payment hereunder or under any Note is
due.  Each such holder (and each Transferee) shall certify (i) in the case of a
Form 1001 or 4224 or in the case of a holder providing certification pursuant to
Section 7.01(b)(ii), that it is entitled to receive payments under this
Agreement without deduction or withholding of any United States federal income
taxes and (ii) in the case of a Form W-8 or W-9 delivered pursuant to Section
7.01(b), that it is entitled to an exemption from United States backup
withholding tax.  Each Person that shall become a holder or a Participant shall,
upon the effectiveness of the related transfer, provide all of the forms and
statements required pursuant to this section; provided that, in the case of a
Participant, such Participant shall furnish all such required forms and
statements to the holder from which the related participation shall have been
purchased.

              (c)  Notwithstanding the foregoing paragraphs (a) and (b) of this
                   Section 7.01, the Company shall only be required to pay any
                   additional amounts to any holder (or Transferee) in respect
                   of any amounts pursuant to such paragraph (a) if such holder
                   (or Transferee), in addition to complying with the
                   requirements of paragraph (b), shall have taken such other
                   steps as such holder or Transferee may determine in the
                   exercise of its business judgment (utilizing criteria it
                   determines to be appropriate) are reasonably available to it
                   under applicable laws and any applicable tax treaty or
                   convention to obtain an exemption from, or reduction (to the
                   lowest applicable rate) of, such tax (it being understood
                   that no holder shall be required to take any action that it
                   concludes could subject it to heightened audit scrutiny or
                   extend the period that such holder's tax returns remain open
                   for review by any taxing authority).

              (d)  Any claim by a holder (or Transferee) for payment from the
                   Company of any amounts under this Section 7.01 shall be made
                   within ninety (90) days after such holder (or Transferee)
                   determines the exact amount of any such claim.

                                 ARTICLE VIII

                                  THE TRUSTEE

        SECTION 8.1  Trustee's Disclaimer.

                                      41
<PAGE>

        The Trustee shall not be responsible in any manner whatsoever for or
in respect of the validity or sufficiency of this Supplemental Indenture or the
due execution hereof by the Company, or for or in respect of the recitals and
statements contained herein, all of which recitals and statements are made
solely by the Company.

        Except as herein otherwise provided, no duties, responsibilities or
liabilities are assumed, or shall be construed to be assumed, by the Trustee by
reason of this Supplemental Indenture other than as set forth in the Indenture,
and this Supplemental Indenture is executed and accepted on behalf of the
Trustee, subject to all the terms and conditions set forth in the Indenture, as
fully to all intents as if the same were set forth at length herein.

                                  ARTICLE IX

                                   GUARANTEE

        SECTION 9.1  Unconditional Guarantee.

        Each Guarantor who becomes a party to this Supplemental Indenture
hereby unconditionally, jointly and severally, guarantees to each Holder of a
Series E Note authenticated and delivered by the Trustee and to the Trustee and
its successors and assigns that: the principal of, premium, if any, and interest
on the Series E Notes will be promptly paid in full when due, subject to any
applicable grace period, whether at maturity, by acceleration or otherwise, and
interest on the overdue principal and interest on any overdue interest on the
Series E Notes and all other obligations of the Company to the Holders or the
Trustee hereunder or under the Indenture or the Series E Notes will be promptly
paid in full or performed, all in accordance with the terms hereof and thereof;
subject, however, to the limitations set forth in Section 9.04.  Each such
Guarantor hereby agrees that its obligations hereunder shall be unconditional,
irrespective of the validity, regularity or enforceability of the Series E
Notes, the Indenture or this Supplemental Indenture, the absence of any action
to enforce the same, any waiver or consent by any Holder of the Series E Notes
with respect to any provisions hereof or thereof, the recovery of any judgment
against the Company, any action to enforce the same or any other circumstance
which might otherwise constitute a legal or equitable discharge or defense of a
Guarantor.  Each such Guarantor hereby waives diligence, presentment, demand of
payment, filing of claims with a court in the event of insolvency or bankruptcy
of the Company, any right to require a proceeding first against the Company,
protest, notice and all demands whatsoever and covenants that the Guarantee will
not be discharged except by complete performance of the obligations contained in
the Series E Notes, the Indenture, this Supplemental Indenture, and such
Guarantee.

        If any Holder or the Trustee is required by any court or otherwise to
return to the Company, any Guarantor or any custodian, trustee, liquidator or
other similar official acting in relation to the Company or any Guarantor, any
amount paid by the Company or any Guarantor to the Trustee or such Holder, this
Guarantee, to the extent theretofore discharged, shall be reinstated in full
force and effect.  Each Guarantor further agrees that, as between each
Guarantor, on the one hand, and the Holders and the Trustee, on the other hand,
(x) the maturity of the obligations guaranteed hereby may be accelerated as
provided in Article Six of the Indenture for the purpose of this Guarantee,
notwithstanding any stay, injunction or other

                                      42
<PAGE>

prohibition preventing such acceleration in respect of the obligations
guaranteed hereby, and (y) in the event of any acceleration of such obligations
as provided in Article 6 of the Indenture, such obligations (whether or not due
and payable) shall forthwith become due and payable by each Guarantor for the
purpose of this Guarantee.

                                      43
<PAGE>

        SECTION 9.2  Severability.

        In case any provision of this Guarantee shall be invalid, illegal or
unenforceable, the validity, legality and enforceability of the remaining
provisions shall not in any way be affected or impaired thereby.

        SECTION 9.3  Release of a Guarantor.

        If the Series E Notes are defeased in accordance with Section 8.02 of
the Indenture, or if all of the Capital Stock of any Guarantor is sold
(including by issuance or otherwise) by the Company or any of its Subsidiaries
in a transaction constituting an Asset Disposition (or which, but for the
provisions of clause (c) of the definition of such term, would constitute an
Asset Disposition), and, if required by this Supplemental Indenture, (x) the Net
Available Proceeds from such Asset Disposition are used in accordance with
Section 4.05 of the Indenture or (y) the Company delivers to the Trustee an
Officer's Certificate covenanting that the Net Available Proceeds from such
Asset Disposition will be used in accordance with Section 4.05 of the Indenture
and within the time limits specified thereon, then such Guarantor shall be
released and discharged from all obligations under this Article 9 upon such use
in the case of clause (x) or upon such delivery in the case of clause (y). The
Trustee shall, at the sole cost and expense of the Company and upon receipt at
the reasonable request of the Trustee of an Opinion of Counsel that the
provisions of this Section 9.03 have been complied with, deliver an appropriate
instrument evidencing such release upon receipt of a request by the Company
accompanied by an Officers' Certificate certifying as to the compliance with
this Section 9.03, any Guarantor not so released remains liable for the full
amount of principal of (premium, if any) hereunder as provided in this Article
9.

        Any Subsidiary of the Company that ceases to be a direct or indirect
obligor (including as guarantor) under, or in respect of all Senior Credit
Facilities shall be released from its Guarantee upon delivery of an Officers'
Certificate to the Trustee certifying to such effect.

        SECTION 9.4  Limitation of Guarantor's Liability.

        Each Guarantor, and by its acceptance hereof each Holder and the
Trustee, hereby confirms that it is the intention of all such parties that the
guarantee by such Guarantor pursuant to its Guarantee not constitute a
fraudulent transfer or conveyance for purposes of title 11 of the United States
Code, as amended, the Uniform Fraudulent Conveyance Act or any similar U.S.
Federal or state or other applicable law.  To effectuate the foregoing
intention, the Holders and such Guarantor hereby irrevocably agree that the
obligations of such Guarantor under the Guarantee shall be limited to the
maximum amount as will, after giving effect to all other contingent and fixed
liabilities of such Guarantor and after giving effect to any collections from or
payments made by or on behalf of any other Guarantor in respect of the
obligations of such other Guarantor under its Guarantee or pursuant to Section
9.05, result in the obligations of such Guarantor under the Guarantee not
constituting such fraudulent transfer or conveyance.

        SECTION 9.5  Contribution.

                                      44
<PAGE>

        In order to provide for just and equitable contribution among the
Guarantors, the Guarantors agree, inter se, that in the event any payment or
distribution is made by any Guarantor (a "Funding Guarantor") under the
Guarantee, such Funding Guarantor shall be entitled to a contribution from all
other Guarantors in a pro rata amount, based on the net assets of each Guarantor
(including the Funding Guarantor), determined in accordance with GAAP, subject
to Section 9.04, for all payments, damages and expenses incurred by that Funding
Guarantor in discharging the Company's obligations with respect to the Series E
Notes or any other Guarantor's obligations with respect to the Guarantee.

        SECTION 9.6 Execution of Guarantee.

        To further evidence its Guarantee to the Holders, any Guarantor
required to Guarantee the Series E Notes pursuant to Section 4.13 shall execute
the endorsement of Guarantee in substantially the form set forth in Exhibit A
hereto, which endorsement shall be delivered to each Holder to be attached to
each Series E Note.    Each such Guarantor hereby agrees that its Guarantee set
forth in Section 9.01 shall remain in full force and effect notwithstanding any
failure to endorse on each Series E Note a notation of such Guarantee.  Each
such Guarantee shall be signed on behalf of each Guarantor by its chairman of
the board, its president or one of its vice presidents prior to the
authentication of the Series E Note on which it is endorsed, and the delivery of
such Series E Note by the Trustee, after the authentication thereof hereunder,
shall constitute due delivery of such Guarantee on behalf of such Guarantor.
Such signature upon the Guarantee may be manual or facsimile signature of such
officer and may be imprinted or otherwise reproduced on the Guarantee, and in
case such officer who shall have signed the Guarantee shall cease to be such
officer before the Series E Note on which such Guarantee is endorsed shall have
been authenticated and delivered by the Trustee or disposed of by the Company,
such Series E Note nevertheless may be authenticated and delivered or disposed
of as though the Person who signed the Guarantee had not ceased to be such
officer of the Guarantor.

        SECTION 9.7  Subordination of Subrogation and Other Rights.

        Each Guarantor hereby covenants and agrees that any claim against the
Company that arises from the payment, performance or endorsement of such
Guarantor's obligations under its Guarantee or this Supplemental Indenture,
including, without limitation, any right of subrogation, is expressly made
subordinate to and subject in right of payment to the prior payment in full in
cash or cash equivalents or, as acceptable to the Holders of the Series E Notes,
in any other manner, of all outstanding Series E Notes in accordance with the
provisions provided therefor in this Supplemental Indenture.

                                      45
<PAGE>

                                   ARTICLE X

                          SUBORDINATION OF GUARANTEE

        SECTION 10.1  Guarantee Obligations Subordinated to Senior Debt.

        Each Guarantor covenants and agrees, and the Trustee and each Holder
of the Series E Notes by its acceptance thereof, likewise covenants and agrees,
that, to the extent and in the manner hereinafter set forth in this Section
10.01, the Guarantees shall be issued subject to the provisions of this Article
10; and each Person holding any Series E Note, whether upon original issue or
upon transfer, assignment or exchange thereof, accepts and agrees that all
payments of the principal of, premium, if any, and interest on the Series E
Notes pursuant to the Guarantee made by or on behalf of any Guarantor is
expressly hereby made subordinate and subject in right of payment to the prior
payment in full in cash or cash equivalents or, as acceptable to the holders of
Senior Debt in any other manner, of all Senior Debt in the manner set forth in
this Article 10.  The terms of this Article 10 are for the benefit of, and shall
be enforceable directly by, each holder of Senior Debt, and each holder of
Senior Debt whether how outstanding or hereafter created, incurred, assumed or
guaranteed shall be deemed to have acquired such Senior Debt in reliance upon
the covenants and provisions contained herein.

        SECTION 10.2  Payment of Proceeds Upon Dissolution, Etc.

        Upon any payment or distribution of assets of  any Guarantor to
creditors upon any Proceeding:

              (a)  The holders of Senior Debt shall receive payment in full in
                   cash or cash equivalents or, as acceptable to the holders of
                   Senior Debt, in any other manner, of all amounts due on or to
                   become due on or in respect of all Senior Debt (including any
                   interest accruing thereon after the commencement of any such
                   Proceeding, whether or not allowed as a claim against such
                   Guarantor in such Proceeding) or provision shall be made for
                   such payment in a manner acceptable to such holders before
                   any payment or distribution may be made to the Trustee or the
                   Holders of the Series E Notes by, or on behalf of, any
                   Guarantor, whether by setoff, exercising contractual or
                   statutory rights or otherwise and whether in the form of
                   cash, stock or property or otherwise (excluding any payment
                   or distribution described in the last paragraph of Section
                   10.02(b)), on account of the principal of, premium, if any,
                   interest on or any other obligation owing in respect of the
                   Series E Notes (all such payments, distributions, purchases,
                   redemptions and acquisitions, whether or not in connection
                   with a Proceeding (but excluding any payment or distribution
                   described in the last paragraph of Section 10.02(b)), being
                   herein referred to, individually and collectively, as a
                   "Guarantee Payment"); and

                                      46
<PAGE>

              (b)  Any payment or distribution of assets of any Guarantor of any
                   kind or character, whether in cash, property or securities,
                   by set-off or otherwise, to which the Trustee or the Holders
                   of the Series E Notes would be entitled but for the
                   provisions of this Article 10, shall be paid by the Guarantor
                   or the liquidating trustee or agent or other Person making
                   such payment or distribution, whether a trustee in
                   bankruptcy, a receiver or liquidating trustee or otherwise,
                   directly to the holders of Senior Debt or their
                   representatives or trustees under any credit agreement,
                   indenture or other agreement under which any such Senior Debt
                   may have been issued, ratably according to the aggregate
                   amounts remaining unpaid on account of the Senior Debt held
                   or represented by each, to the extent necessary to make
                   payment in full in cash or cash equivalents or, as acceptable
                   to the holders of Senior Debt, in any other manner, of all
                   Senior Debt remaining unpaid, after giving effect to any
                   concurrent payment or distribution to the holders of such
                   Senior Debt.

        In the event that, notwithstanding the foregoing provisions of this
section, the Trustee or the Holder of any Series E Notes shall have received in
connection with any Proceeding any Guarantee Payment before all Senior Debt is
paid in full or payment thereof is provided for in cash or cash equivalents,
then and in such event such Guarantee Payment shall be held in trust for the
benefit of and paid over or delivered forthwith to the trustee in bankruptcy,
receiver, liquidating trustee, custodian, assignee, agent or other Person making
payment or distribution of assets of such Guarantor for application to the
payment of all Senior Debt remaining unpaid, to the extent necessary to make
payment in full in cash or cash equivalents or, as acceptable to the holders of
the Senior Debt, in any other manner, of all Senior Debt remaining unpaid after
giving effect to any concurrent payment to or for the holders of Senior Debt.

        For purposes of this Article 10 only, the words "payment or
distribution" or "any payment or distribution of any kind or character, whether
in cash, property or securities" shall not be deemed to include a payment or
distribution of stock or securities of any Guarantor provided for by a plan of
reorganization or readjustment authorized by an order or decree of a court of
competent jurisdiction in a reorganization proceeding under any applicable
bankruptcy law or of any other corporation provided for by such plan of
reorganization or readjustment, which stock or securities are subordinated in
right of payment to all then outstanding Senior Debt to substantially the same
extent, or to a greater extent than, any payment by such Guarantor of the
principal of, premium, if any, or interest on the Series E Notes are so
subordinated as provided in this Article 10.  The consolidation of any Guarantor
with, or the merger of any Guarantor into, another Person or the liquidation or
dissolution of any Guarantor following the conveyance, transfer or lease of all
or substantially all of its properties and assets to another Person and so long
as permitted under the terms of the Senior Debt shall not be deemed a Proceeding
for the purposes of this section if the Person formed by such consolidation or
into which any Guarantor is merged or the Person which acquires by conveyance,
transfer or lease

                                      47
<PAGE>

such properties and assets, as the case may be, shall, as a part of such
consolidation, merger, conveyance, transfer or lease, comply with the conditions
set forth in Article 10.

              (c)  To the extent any payment of Senior Debt (whether by or on
                   behalf of any Guarantor, as proceeds of security or
                   enforcement of any right of setoff or otherwise) is declared
                   to be fraudulent or preferential, set aside or required to be
                   paid to any receiver, trustee in bankruptcy, liquidating
                   trustee, agent or other similar Person under any bankruptcy,
                   insolvency, receivership, fraudulent conveyance or similar
                   law, then if such payment is recovered by, or paid over to,
                   such receiver, trustee in bankruptcy, liquidating trustee,
                   agent or other similar Person, the Senior Debt or part
                   thereof originally intended to be satisfied shall be deemed
                   to be reinstated and outstanding as if such payment had not
                   occurred.

        SECTION 10.3  No Payment When Designated Senior Debt in Default.

        In the event that any Senior Payment Default shall have occurred and
be continuing, then no Guarantee Payment whether by setoff, exercising
contractual or statutory rights or otherwise and whether in the form of cash,
stock or property or otherwise shall be made, unless and until such Senior
Payment Default shall have been cured or waived in writing or shall have ceased
to exist or all amounts then due and payable in respect of such Designated
Senior Debt (including, without limitation, amounts that have become and remain
due by acceleration) shall have been paid in full in cash.

        In the event that any Senior Nonmonetary Default shall have occurred
and be continuing, then, upon the receipt by such Guarantor of written notice of
such Senior Nonmonetary Default from the Administrative Agent to which such
Senior Nonmonetary Default relates or, if no loans or other amounts are then
outstanding under the Credit Facility or any renewal, extension or refunding
thereof, and the Credit Facility and any such renewal, extension or refunding
have been terminated, upon receipt of such notice by or on behalf of any other
holder or holders of Designated Senior Debt in an aggregate amount in excess of
$25,000,000, no Guarantee Payment shall be made whether by setoff, exercising
contractual or statutory rights or otherwise and whether in the form of cash,
stock or property or otherwise during the period (the "Guarantee Payment
Blockage Period") commencing on the date of such receipt by such Guarantor of
such written notice and ending on the earlier of (a) the date, if any, on which
the Designated Senior Debt to which such Senior Nonmonetary Default relates is
discharged or such Senior Nonmonetary Default shall have been cured or waived in
writing or shall have ceased to exist and any acceleration of Designated Senior
Debt to which such Senior Nonmonetary Default relates shall have been rescinded
or annulled and (b) the 179th day after the date of receipt of such written
notice.  No more than one Guarantee Payment Blockage Period may be commenced
with respect to the Series E Notes during any period of 360 consecutive days and
there shall be a period of at least 181 consecutive days in each period of 360
consecutive days when no Guarantee Payment Blockage Period is in effect.
Following the commencement of any Guarantee Payment Blockage Period, the holders
of Designated Senior Debt shall be precluded from commencing a subsequent
Guarantee Payment Blockage Period

                                      48
<PAGE>

until the conditions set forth in the preceding sentence shall have been
satisfied. For all purposes of this paragraph, no Senior Nonmonetary Default
that existed and was continuing on the date of commencement of any Guarantee
Payment Blockage Period with respect to the Designated Senior Debt initiating
such Guarantee Payment Blockage Period shall be, or may be made, the basis for
the commencement of a subsequent Guarantee Payment Blockage Period by any holder
of Designated Senior Debt or any representative or trustee under any indenture
under which any such Designated Senior Debt may have been issued unless such
Senior Nonmonetary Default shall have been cured for a period of not less than
90 consecutive days.

      In the event that, notwithstanding the foregoing, any Guarantor shall
make any Guarantee Payment to any Holder prohibited by the foregoing provisions
of this Section 10.03, then in such event such Guarantee Payment shall be held
in trust and paid over and delivered forthwith to the representatives or trustee
under any indenture under which any such Designated Senior Debt may have been
issued ratably according to the aggregate amounts remaining unpaid on account of
the Designated Senior Debt held or represented by under the Designated Senior
Debt or, if there is no such representative or trustee with respect to such
Designated Senior Debt, to the holders of such Designated Senior Debt.

        The provisions of this Section 10.03 shall not apply to any Guarantee
Payment with respect to which Section 10.02 hereof would be applicable.

        SECTION 10.4  Acceleration of Series E Notes.

        If an Event of Default shall have occurred and be continuing (other
than an Event of Default pursuant to paragraphs (ix) and (x) of Section 6.01 of
the Indenture), the Trustee shall give the holders of the Designated Senior Debt
not less than 30 days prior written notice before accelerating the Series E
Notes (which notice shall state it is a "Notice of Intent to Accelerate") and
before demanding payment from any Guarantor pursuant to its Guarantee. Upon such
declaration, the holders of Designated Senior Debt outstanding at the time the
Series E Notes so becomes due and payable shall be entitled to receive payment
in full in cash, cash equivalents or, as acceptable to the holders of the
Designated Senior Debt, in any other manner on all amounts due or to become due
on or in respect of such Designated Senior Debt, before any Guarantor may make,
and before any Holder of the Series E Notes is entitled to receive, any payment
or distribution of assets of any Guarantor of any kind or character, whether in
cash, securities or other property on account of any principal of, premium, if
any, and interest on the Series E Notes.  All payments in respect of the
Subordinated Debt postponed under this Section 10.04 shall be immediately due
and payable upon the termination of such postponement; the remittance in full of
such payments by any Guarantor in accordance with the terms of the this
Supplemental Indenture and the acceptance thereof by the Holders of the Series E
Notes shall be deemed to constitute a cure by the Guarantor and a waiver by the
Holders of the Series E Notes of any Event of Default that existed immediately
prior to such remittance and acceptance to the extent that such Event of Default
existed solely as a consequence of the previous non-payment of such postponed
payments during such period of postponement.

        SECTION 10.5  Payments Permitted If No Default

                                      49
<PAGE>

Nothing contained in this Article 10 or elsewhere in this Supplemental
Indenture or in any of the Series E Notes shall prevent any Guarantor, at any
time except during the pendency of any Proceeding referred to Section 10.02 or
under the conditions described in Section 10.03, from making Guarantee Payments
in accordance with the terms of this Supplemental Indenture, or from depositing
with the Trustee any moneys for such Guarantee Payments, or the application by
the Trustee of any moneys deposited with it for the purpose of making payments
of principal of, premium, if any, and interest on the Series E Notes in
accordance with the terms of this Supplemental Indenture. Nothing in this
Article 10 shall have any effect on the right of the Trustee (on behalf of the
Holders) or the Holders to accelerate the maturity of the Series E Notes upon
the occurrence of an Event of Default, but, in that event, no payment may be
made in violation of the provisions of this Article 10 with respect to the
Series E Notes. If payment of the Series E Notes is accelerated because of an
Event of Default, the Guarantors shall promptly notify the holders of the Senior
Debt (or their representatives) of such acceleration.

        SECTION 10.6  Obligations of Guarantors Unconditional.

        Nothing contained in this Article 10 or elsewhere in this Supplemental
Indenture or in the Series E Notes is intended to or shall impair, as among the
Guarantors and the Holders of the Series E Notes, the obligation of each
Guarantor, which is absolute and unconditional, to pay to the Holders of the
Series E Notes the principal of, premium, if any, and interest on the Series E
Notes as and when the same shall become due and payable in accordance with the
terms of the Guarantee, or is intended to or shall affect the relative rights of
the Holders of the Series E Notes and creditors of any Guarantor other than the
holders of the Senior Debt, nor shall anything herein or therein prevent any
Holder or the Trustee on their behalf from exercising all remedies otherwise
permitted by applicable law upon default under this Supplemental Indenture,
subject to the rights, if any, under this Article 10 of the holders of the
Senior Debt in respect of cash, property or securities of any Guarantor received
upon the exercise of any such remedy.

        Without limiting the generality of the foregoing, nothing contained in
this Article 10 shall restrict the right of the Trustee or the Holders of the
Series E Notes of the Series E Notes to take any action to declare the Series E
Notes to be due and payable prior to their stated maturity pursuant to Section
5.01 or to pursue any rights or remedies hereunder; provided, however, that all
Senior Debt then due and payable shall first be paid in full before the Holders
or the Trustee are entitled to receive any direct or indirect payment from such
Guarantor of principal of or interest on the Series E Notes pursuant to such
Guarantor's Guarantee.

        SECTION 10.7  Subrogation To Rights of Holders of Senior Debt.

        Subject to the payment in full in cash or cash equivalents, or as
acceptable to the holders of Senior Debt, in any other manner, of all Senior
Debt, the Trustee and the Holders of the Series E Notes shall be subrogated to
the rights of the holders of such Senior Debt to receive payments and
distributions of cash, property and securities applicable to the Senior Debt
until the principal of, premium, if any, and interest on the Series E Notes
shall be paid in full.  For purposes of such subrogation, no payments or
distributions to the holders of the Senior Debt of any cash, property or
securities to which the Trustee and the Holders of the Series E Notes would

                                      50
<PAGE>

be entitled except for the provisions of this Article 10, and no payments
pursuant to the provisions of this Article 10 to the holders of Senior Debt by
Holders of the Series E Notes, shall, as among any Guarantor, its creditors
other than holders of Senior Debt and the Holders of the Series E Notes, be
deemed to be a payment or distribution by such Guarantor to or on account of the
Senior Debt.

        SECTION 10.8  Provisions Solely to Define Relative Rights.

        The provisions of this Article 10 are and are intended solely for the
purpose of defining the relative rights of the Trustee and the Holders of the
Series E Notes on the one hand and the holders of Senior Debt on the other hand.
Nothing contained in this Article 10 or elsewhere in this Supplemental Indenture
or in the Series E Notes or in any Guarantee is intended to or shall (a) impair,
as among the Guarantors, its creditors other than holders of Senior Debt and the
Trustee and the Holders of the Series E Notes, the obligation of each Guarantor,
which is absolute and unconditional (and which, subject to the rights under this
Article 10 of the holders of Senior Debt, is intended to rank equally with all
other general obligations of such Guarantor), to pay to the Trustee for the
Holders of the Series E Notes the principal of, premium, if any, and interest on
the Series E Notes as and when the same shall become due and payable in
accordance with the terms of each Guarantor's Guarantee; (b) affect the relative
rights against any Guarantor of the Trustee, the Holders of the Series E Notes
and the creditors of such Guarantor other than the holders of Senior Debt; or
(c) prevent the Trustee on behalf of the Holders or any Holder of any Series E
Note from exercising all remedies otherwise permitted by applicable law upon
default under this Supplemental Indenture, subject to this Article 10, including
the rights, if any, under this Article 10 of the holders of Senior Debt to
receive cash, property or and securities otherwise payable or deliverable to
such holder or, under the conditions specified in Section 10.03, to prevent any
payment prohibited by such section or enforce their rights pursuant to the
penultimate paragraph in Article 10.

        SECTION 10.9  No Waiver of Subordination Provisions.

        No right of any present or future holder of any Senior Debt to enforce
subordination as provided herein shall at any time in any way be prejudiced or
impaired by any act or failure to act on the part of any Guarantor or by any act
or failure to act, in good faith, by any such holder, or by any noncompliance by
any Guarantor with the terms, provisions and covenants of this Supplemental
Indenture, regardless of any knowledge  thereof which any such holder may have
or otherwise be charged with.

        Without in any way limiting the generality of the foregoing paragraph,
the holders of Senior Debt may, at any time and from time to time, without the
consent of or notice to the Holders of the Series E Notes, without incurring
responsibility to the Holders of the Series E Notes and without impairing or
releasing the subordination provided in this Article 10 or the obligations
hereunder of the Trustee or Holders of the Series E Notes to the holders of
Senior Debt, do any one or more of the following: (a) change the manner, place
or terms of payment or
                                      51
<PAGE>

extend the time of payment of, or renew, refinance or alter, any Senior Debt, or
otherwise amend or supplement in any manner any Senior Debt or any instrument
evidencing the same or any agreement under which such Senior Debt is
outstanding; (b) permit any Guarantor to borrow, repay and then reborrow any or
all the Senior Debt; (c) sell, exchange, release or otherwise deal with any
property pledged, mortgaged or otherwise securing Senior Debt; (d) release any
Person liable in any manner for the collection of Senior Debt; (e) exercise or
refrain from exercising any rights against any Guarantor and any other Person;
and (f) apply any sums received by such holders to Senior Debt.

        SECTION 10.10  Reliance On Judicial Order or Certificate of Liquidating
Agent.

        Upon any payment or distribution of assets of any Guarantor referred
to in this Article 10, the Trustee and the Holders of the Series E Notes shall
be entitled to rely upon any order or decree entered by any court of competent
jurisdiction in which such Proceeding is pending, or a certificate of the
receiver, trustee in bankruptcy, liquidation trustee, custodian, assignee for
the benefit of creditors, agent or other Person making such payment or
distribution, delivered to the Trustee or to the Holders for the purpose of
ascertaining the Persons entitled to participate in such payment or
distribution, the holders of the Senior Debt, the amount thereof or payable
thereon, the amount or amounts paid or distributed thereon and all other facts
pertinent thereto or to this Article 10; provided that the foregoing shall apply
only if such court has been apprised of the provisions of this Article 10.

        SECTION 10.11  Notice to Trustee.

        The Company shall give prompt written notice to the Trustee of any
fact known to the Company or such Guarantor which would prohibit the making of
any payment to or by the Trustee in respect of the Series E Notes pursuant to
the provisions of this Article 10.  Failure to give such notice to the Trustee
shall not affect the subordination of the Series E Notes to Senior Debt.  The
Trustee shall not be charged with knowledge of the existence of any default or
event of default with respect to any Senior Debt or of any other facts which
would prohibit the making of any payment to or by the Trustee unless and until
the Trustee shall have received notice in writing to that effect signed by an
officer of the Company, or by a holder of any Senior Debt or trustee or agent
therefor; and prior to the receipt of any such written notice, the Trustee
shall, subject to Article 7 of the Indenture, be entitled to assume that no such
facts exist; provided, however, that if the Trustee shall not have received the
notice provided for in this Section 10.10 at least three Business Days prior to
the date upon which by the terms of this Supplemental Indenture any moneys shall
become payable for any purpose (including, without limitation, the payment of
the principal of,  premium, if any, or interest on any Series E Note), then,
regardless of anything herein to the contrary, the Trustee shall have full power
and authority to receive any moneys from any Guarantor and to apply the same to
the purpose for which they were received, and shall not be affected by any
notice to the contrary which may be received by it on or after such prior date.
Nothing contained in this Section 10.10 shall limit the right of the holders of
Senior Debt to recover payments as contemplated by Article 10.  The Trustee
shall be entitled to rely on the delivery to it of a written notice by a Person
representing himself or itself to be a holder of any Senior Debt (or a trustee
on behalf of, or other representative of, such holder) to

                                      52
<PAGE>

establish that such notice has been given by a holder of such Senior Debt or a
trustee or representative on behalf of any such holder.

        In the event that the Trustee determines in good faith that any
evidence is required with respect to the right of any Person as a holder of any
Senior Debt to participate in any payment or distribution pursuant to this
Article 10, the Trustee may request such Person to furnish evidence to the
reasonable satisfaction of the Trustee as to the amount of such Senior Debt held
by such Person, the extent to which such Person is entitled to participate in
such payment or distribution and any other facts pertinent to the rights of such
Person under this Article 10, and if such evidence is not furnished, the Trustee
may defer any payment to such Person pending judicial determination as to the
right of such Person to receive such payment.

        SECTION 10.12  Trustee's Relation to Senior Debt.

        The Trustee shall be entitled to all the rights set forth in this
Article 10 with respect to any Senior Debt which may at any time be held by it
in its individual or any other capacity to the same extent as any other holder
of such Senior Debt, and nothing in this Indenture shall deprive the Trustee of
any of its rights as such holder.

        With respect to the holders of any Senior Debt, the Trustee undertakes
to perform or to observe only such of its covenants and obligations as are
specifically set forth in this Article 10, and no implied covenants or
obligations with respect to the  holders of such Senior Debt shall be read into
this Supplemental Indenture against the Trustee.  The Trustee shall not be
deemed to owe any fiduciary duty to the holders of any Senior Debt (except as
provided in Section 10.02(b)).  The Trustee shall not be charged with knowledge
of the existence of any Senior Debt or of any facts that would prohibit any
payment hereunder unless the Trustee shall have received written notice to that
effect at the address of the Trustee set forth in Section 11.01 of the
Indenture.

        SECTION 10.13  Series E Note Holders Authorize Trustee to Effectuate
Subordination.

        Each Holder of Series E Notes by its acceptance of such Series E Notes
authorizes and expressly directs  the Trustee on its behalf to take such action
as may be necessary or appropriate to effectuate the subordination provided in
this Article 10, and appoints the Trustee its attorney-in-fact for such
purposes,  including, in the event of any dissolution, winding up, liquidation
or reorganization of any Guarantor (whether in bankruptcy, insolvency,
receivership, reorganization or similar proceedings or upon an assignment for
the benefit of creditors or otherwise) tending towards liquidation of the
business and assets of such Guarantor, the filing of a claim for the unpaid
balance of its Series E Notes in the form required in those proceedings.

        SECTION 10.14  This Article Not to Prevent Event of Default.

        The failure to make a payment on account of principal of, premium, if
any, or interest on the Series E Notes by reason of any provision of this
Article 10 shall not be construed as preventing the occurrence of an Event of
Default specified in Section 6.01(i), (ii) or (iii) of the Indenture.

                                      53
<PAGE>

        SECTION 10.15  Trustee's Compensation Not Prejudiced.

        Nothing in this Article 10 shall apply to amounts due to the Trustee
pursuant to other sections in this Supplemental Indenture or in the Indenture.

                                      54
<PAGE>

        SECTION 10.16  Subordination Provisions Not Applicable to Money Held
in Trust for Holders of Series E Notes; Payments May Be Paid prior to
Dissolution.

        All money and United States Government Securities deposited in trust
with the Trustee pursuant to and in accordance with Article 8 of the Indenture
of the Indenture shall be for the sole benefit of the Holders of the Series E
Notes and shall not be subject to this Article 10.

        Nothing contained in this Article or elsewhere in this Supplemental
Indenture shall prevent (i) the Company, except under the conditions described
in Section 10.03, from making payments of principal of and interest on the
Series E Notes, or from depositing with the Trustee any moneys for such payments
or from effecting a termination of the Guarantors' obligations under the Series
E Notes and this Supplemental Indenture as provided in Article 8 of the
Indenture, or (ii) the application by the Trustee of any moneys deposited with
it for the purposed of making such payments of principal of, premium, if any,
and interest on the Series E Notes, to the Holders entitled thereto unless at
least three Business Days prior to the date upon which such payment becomes due
and payable, the Trustee shall have received the written notice provided for in
Section 10.11.

                                  ARTICLE XI

                                 MISCELLANEOUS

        SECTION 11.1  Reference to Indenture.

        Except insofar as otherwise expressly provided herein, all the
provisions, definitions, terms and conditions of the Indenture, as it may from
time to time be amended, shall be deemed to be incorporated in and made a part
of this Supplemental Indenture; and the Indenture as supplemented by this
Supplemental Indenture is in all respects ratified and confirmed; and the
Indenture, as amended, and this Supplemental Indenture shall be read, taken and
construed as one and the same instrument.

        SECTION 11.2  Benefits of Indenture.

        Nothing in this Supplemental Indenture is intended, or shall be
construed, to give to any Person, other than the parties hereto and the Holders
issued under the Indenture, any legal or equitable right, remedy or claim under
or in respect of this Supplemental Indenture, or under any covenant, condition
or provision herein contained, all the covenants, conditions and, provisions of
this Supplemental Indenture being intended to be, and being, for the sole and
exclusive benefit of the parties hereto and of the Holders issued and to be
issued under the Indenture and this Supplemental Indenture.

                                      55
<PAGE>

        SECTION 11.3  Amendments Only With Consent of the Holders.

        Notwithstanding Section 9.01 of the Indenture, without the consent of
each Holder of a Series E Note affected, an amendment, waiver or Supplemental
Indenture may not (with respect to any Series E Note held by a non-consenting
Holder):

              (a)  release any Guarantor from any of its obligations under its
                   Guarantee of the Series E Notes other than in accordance with
                   this Supplemental Indenture; or

              (b)  modify the ranking or priority of the Series E Notes or the
                   Guarantees, or modify the definition of Senior Debt or
                   Designated Senior Debt or amend or modify the subordination
                   provisions in the Supplemental Indenture in any manner
                   adverse to the Holders.

        SECTION 11.4  Governing Law.

        This Supplemental Indenture and the Series E Notes issued hereunder
shall be governed by and interpreted and construed in accordance with the laws
of the State of New York (without giving effect to any choice of law principles
of such state other than Section 5-1401 of the General Obligations Law.

        SECTION 11.5  Successors.

        All covenants, stipulations and agreements of the Company in this
Supplemental Indenture and the Series E Notes shall bind its successors and
assigns.  All agreements of the Trustee in this Supplemental Indenture shall
bind its successor.

        SECTION 11.6  Counterparts.

        This Supplemental Indenture may be executed in any number of
counterparts, and each of such counterparts when so executed shall be deemed to
be an original, but all such counterparts shall together constitute by one and
the same instrument.

                                      56
<PAGE>

        IN WITNESS WHEREOF, TELECORP PCS., INC. has caused this supplemental
Indenture to be executed by its [Chairman of the Board, Chief Executive Officer
or one of its Vice Presidents], and duly attested by its [Secretary or one of
its Assistant Secretaries], and                                  has caused the
                                --------------------------------
same to be executed by one of its [Vice Presidents or Assistant Vice Presidents]
and its corporate seal to be hereunto affixed, and duly attested by one of its
[Assistant Secretaries], as of the day and year first above written.


                              TELECORP PCS, INC.


                              _________________________________
                              Name:
                              Title:



                              [TRUSTEE]



                              _________________________________
                              Name:
                              Title:

                                      57
<PAGE>

                                ACKNOWLEDGMENT


STATE OF NEW YORK
                              SS:
COUNTY OF NEW YORK


        On the      day of [         ,     ] before me personally came
               ----         ---------  ----                           --------,
to me known, who, being by me duly sworn, did depose and say that he resides in
              ; that he/she is the                      of TeleCorp PCS, Inc.,
- --------------                     --------------------
a Delaware corporation, the corporation described in and which executed the
foregoing instrument; and that he/she signed his/her name thereto by authority
of the board of directors of said corporation.

                                      58
<PAGE>

                                ACKNOWLEDGMENT

STATE OF NEW YORK
                         SS:
COUNTY OF NEW YORK

     On the      day of [         ,     ], before me personally came
            ----         ---------  ----                             ----------,
to me known, who, being by me duly sworn, did depose and say that he/she
resides in                 ; that he/she is an [                 ] of
           ---------------                      -----------------     ---------,
a banking corporation organized under the laws of                       , the
                                                  ----------------------
corporation described in and which executed the foregoing instrument, that
he/she knows the seal of said corporation; that the seal affixed to said
instrument is such corporate seal; that it was so affixed by authority of the
board of directors of said corporation, and that he/she signed his/her name
thereto by like authority.

<PAGE>

                  CONFIDENTIAL - FOR DISCUSSION PURPOSES ONLY
                  -------------------------------------------

                                                                       EXHIBIT D

                          Summary of Principal Terms

See attached.
<PAGE>


                  CONFIDENTIAL - FOR DISCUSSION PURPOSES ONLY
                  -------------------------------------------

                       AT&T WIRELESS/VENTO AND SULLIVAN

                            F Block Joint Ventures

                          Summary of Principal Terms

General

Parties        AT&T Wireless Services, Inc. and/or one or more affiliates
               ("AT&T"), each of the entities (each, a "License Entity") that
               owns one or more of the F Block licenses referred to below,
               Thomas Sullivan and Gerald Vento (the "Management Group"),
               TeleCorp PCS, Inc. ("TeleCorp"), the TeleCorp Cash Equity
               Investors (the "TeleCorp Investors"), and the non-Management
               Group equity holders in the License Entities (the "Non-Management
               Equity Holders").

Structure      Each of the Houston, San Diego, Melbourne - Titusville, Orlando
               and Tampa - St. Petersburg - Clearwater F Block licenses (each,
               an "F Block License") are held by a separate entity (each, a
               "License Entity" and collectively the "License Entities").  Each
               of the five entities will be independent of each other, but will
               have substantially identical ownership and governance, as set
               forth below.

Acquisition of San Diego License and Non-Management Equity Holders'
Interests/Puerto Rico Transaction

AT&T Loan      AT&T makes a loan (the "AT&T Loan") to the Management Group in an
               amount equal to 100% of the cash required to pay the purchase
               price of the San Diego F Block License, plus the aggregate amount
               of legal fees and other expenses (approximately $225,000)
               TeleCorp incurred directly related to such acquisition.  The
               Management Group will secure the AT&T Loan with a pledge of all
               of the capital stock of the San Diego License Entity.
<PAGE>


                  CONFIDENTIAL - FOR DISCUSSION PURPOSES ONLY
                  -------------------------------------------


Capitalization
of the San Diego
License Entity   Concurrently with the consummation of the AT&T Loan, the
                 Management Group will contribute to the capital of the San
                 Diego License Entity all the proceeds of such loan.

Use of AT&T
Loan Proceeds    Concurrently with the capitalization of the San Diego License
                 Entity, the San Diego License Entity will use the Management
                 Group capital contribution to pay the purchase price of the
                 San Diego F Block License and related expenses.

Exchange of Note
for Interests    Concurrently with the closing of the acquisition by TeleCorp of
                 AT&T's PCS license covering Puerto Rico, TeleCorp will acquire
                 100% of the Non-Management Equity Holders' equity interests in
                 the License Entities (the "Non-Management Equity Interests") in
                 exchange for TeleCorp promissory notes in the aggregate
                 principal amount, in the case of each of the F Block Licenses,
                 set forth on Schedule A, or approximately $26 million in the
                 aggregate (the "Non-Management Equity Interests Purchase
                 Price"). The TeleCorp notes will be of the same tenor as those
                 being issued to AT&T in partial consideration for AT&T's Puerto
                 Rico PCS license.

TeleCorp Notes   The principal terms of the TeleCorp notes are:

                 -- Initial interest rate, equivalent to Lucent Series C, 12%
                 per annum
                 -- Hold period: October 31, 1999
                 -- Interest rate after hold period: 7%
                 -- Convert (if the holder is AT&T, to Series A Preferred, or
                 Series D and F Preferred, at AT&T's option, or if the holder is
                 an Investor, to Series C Preferred and Series A Common)  at a
                 price of 20% premium to par or $1,200/unit
                 -- Senior to Lucent Series C on maturity, redemption priority
                 and repayment
                 -- Mandatory repayment or conversion on qualifying IPO or high
                 yield offering
                 -- Other terms equivalent to Lucent Series C, except conversion
                 rights are forfeited on transfer

                                      66
<PAGE>


                  CONFIDENTIAL - FOR DISCUSSION PURPOSES ONLY
                  -------------------------------------------


Sale of Interests
to License Entity    Concurrently with the exchange referred to in the "Exchange
                     of Notes for Interests" section, TeleCorp will assign to
                     each License Entity (other than San Diego License Entity)
                     the applicable Non-Management Equity Interests (i.e., the
                     interests TeleCorp has acquired in the Houston License
                     Entity will be assigned to Houston License Entity, etc.).
                     In consideration therefor, each License Entity (other than
                     San Diego License Entity) will issue to TeleCorp promissory
                     notes (the "JV Notes"), on terms reasonably acceptable to
                     AT&T, in the aggregate principal amount, in the case of
                     each License Entity, set forth on Schedule A, or
                     approximately $26 million in the aggregate.

Puerto Rico
Consideration        As a portion of the consideration payable by TeleCorp to
                     AT&T for the Puerto Rico license, TeleCorp will deliver to
                     AT&T the JV Notes.

Timing               The closing of the AT&T Loan and the Management Group
                     capital contribution to the San Diego License Entity will
                     occur concurrently with the acquisition of the San Diego F
                     Block License by the San Diego License Entity, and is not
                     conditioned on the consummation of the Puerto Rico
                     acquisition and the transactions described herein (but see
                     "Alternative Arrangement" below). The closing of the Puerto
                     Rico acquisition and the exchanges described above
                     involving the Non-Management Equity Interests, the TeleCorp
                     notes and the JV Notes will all occur concurrently with the
                     closing of the joint venture contributions described in
                     this term sheet.

Alternative
Arrangements         Anything in this Term Sheet to the contrary
                     notwithstanding, at any time on or before the closing of
                     the Puerto Rico transaction, AT&T shall have the right to
                     restructure the Transactions by (a) canceling the
                     transactions set forth in "Exchange of Notes for Interests"
                     and "Sale of Interests to License Entity," and (b) revising
                     the "Puerto Rico Consideration" by eliminating the JV
                     Notes, and increasing the amount of the TeleCorp Notes to
                     $36 million.


                                      67
<PAGE>

                  CONFIDENTIAL - FOR DISCUSSION PURPOSES ONLY
                  -------------------------------------------


                    In the event that the Puerto Rico transaction is not
                    restructured as set forth in the immediately preceding
                    paragraph and fails to close, (a) AT&T will lend to the
                    License Entities an amount equal to the Non-Management
                    Equity Interests Purchase Price in exchange for the JV
                    notes, (b) the License Entities will acquire for cash, and
                    the Non-Management Equity Holders will sell to the License
                    Entities, the Non-Management Equity Interests.

License Entity Capitalization and Management Structure

Capitalization      There will be two classes of interests in the License
                    Entities: voting (which have no economic rights) and non-
                    voting (which represent all of the economic interests in the
                    License Entities) The Management Group shall have 75% of the
                    voting interests and 51% of the non-voting interests of each
                    License Entity, and AT&T shall have 25% of the voting
                    interests, and 49% of the non-voting interests of each
                    License Entity.

Board               AT&T will have the right to designate two directors, and
                    each member of the Management Group will be a director. The
                    Management Group (or its successor) will have the right to
                    designate one additional director, provided such third
                    director is independent of the Management Group and
                    reasonably acceptable to AT&T. The initial members of the
                    Board will be mutually agreed upon.

Voting Rights       A list of significant matters will require an 80%
                    supermajority approval by the Board of License Entity (this
                    list will include, but not be limited to, all matters for
                    which TeleCorp requires a supermajority approval).

Management Fee      In consideration of their services, the Management Group
                    will be paid an annual fee equal to $150,000 (prorated for
                    any partial year) in the aggregate for all License Entities
                    (irrespective of the number of License Entities, and to be
                    divided among the License Entities in a mutually acceptable
                    manner).

Replacement of
Management

                                      68
<PAGE>


                  CONFIDENTIAL - FOR DISCUSSION PURPOSES ONLY
                  -------------------------------------------


Group               In the event that agreed upon performance benchmarks or
                    other objective requirements are not satisfied (such
                    benchmarks and or requirements to be reasonably acceptable
                    to AT&T), the Management Group will be required to assign to
                    substitute control group, reasonably acceptable to a
                    majority of the License Entity directors (excluding the
                    members of the Management Group), all of the Management
                    Group's voting interests. In the event of replacement, the
                    Management Group will, at AT&T's option, either retain its
                    non-voting stock, transfer that stock to its replacement for
                    either cash in an amount equal to the then current value of
                    its put (discussed below) and/or an instrument with the same
                    economic features as the put (so that the Management Group's
                    return will not be worsened as the result of such transfer).

AT&T Assistance     AT&T agrees to, at the request of the Board, negotiate in
                    good faith a management agreement pursuant to which AT&T
                    would build and manage a system that satisfied the
                    applicable FCC license requirements.

Funding             At the request of the Board, AT&T agrees to fund, on terms
                    acceptable to it, the operating expenses of the License
                    Entity (including without limitation the Management Put, the
                    build out costs described in the immediately preceding
                    paragraph, the management fees, and the interest on the FCC
                    debt).

AT&T Liquidity      Anything to the contrary in the AT&T Loan notwithstanding,
                    the Management Group agrees that if at any time AT&T
                    requests repayment of the AT&T Loan and/or the JV notes, the
                    Management Group will use its best efforts to take all
                    commercially reasonable steps to raise funds to do so.


                                      69

Right of First
Negotiation        In order to induce AT&T to extend the AT&T Loan, and in
                   consideration of the JV Notes and the commitments AT&T has
                   made to the License Entities hereunder, the Management Group
                   hereby agrees with AT&T that it will in good faith negotiate
                   with AT&T a mutually acceptable transaction (an "F Block
                   Transaction") relating to the F Block Licenses, and, until
                   both parties agree in writing that they are no longer
                   interested in entering into an F Block Transaction, the
                   Management group will not enter into an agreement or
                   arrangement with any person or entity relating to any
                   alliance, sale or other transaction involving the F Block PCS
                   Licenses, or solicit, initiate or engage in any discussion
                   with respect to any such licenses.

Indemnification    Each License Entity will provide customary indemnification
                   for its directors and officers (including the Management
                   Group), including without limitation indemnifying them
                   against director liability arising from AT&T's failure to
                   fund License Entity's capital requirements (provided the
                   Management Group and AT&T agree on acceptable terms for such
                   funding) and AT&T's provision of management services. AT&T
                   will assure performance by License Entity of its
                   indemnification obligations.

Management Put     The Management Group will have the right to put to AT&T its
                   interest in each License Entity for a sum of cash equal to,
                   for each License Entity, the amount set forth on Schedule B
                   ($[4] million in the aggregate), plus 6% per annum (and,
                   during the period, if any, following replacement of the
                   Management Group, 10% per annum), compounded annually. The
                   put will be exercisable (in whole but not in part) only
                   during the one-year period following the earliest date that
                   exercise of the put would not violate FCC rules or trigger
                   any penalties (the Management Group shall receive written
                   notice of this date), provided that to the extent permitted
                   by FCC rules without triggering any penalty, each member of
                   the Management Group may put $400,000 of its F Block Tracking
                   Interests during the one-year period commencing December 31,
                   1999 (at AT&T's option, it may fund the redemption of the
                   Management Group's interest, in lieu of the put).


                                      70
<PAGE>

                  CONFIDENTIAL - FOR DISCUSSION PURPOSES ONLY
                  -------------------------------------------


Transfer
Restrictions      The Management Group may not transfer, pledge or otherwise
                  dispose of all or any portion of its License Entity interests
                  prior to the ninth anniversary of the closing.

                                 *  *  *  *  *

                                      71
<PAGE>

                  CONFIDENTIAL - FOR DISCUSSION PURPOSES ONLY
                  -------------------------------------------


                                                                    SCHEDULE A

  F Block License      Aggregate Principal Amount of Notes
  ---------------      -----------------------------------

  Houston

  San Diego*                         -0-

  Melbourne

  Orlando

  Tampa

  TOTAL                         $[26,000,000]

- -----------------
*       The Non-Management Equity Holders do not hold an equity interest in the
San Diego License Entity.  Accordingly, no San Diego JV Notes will be issued and
the formation of San Diego License Entity is not subject to the consummation of
the other F Block transactions or the Puerto Rico transaction.

                                      72
<PAGE>

                                                                      SCHEDULE B




License Entity         Value of Management Group Equity Interest
- --------------         -----------------------------------------

Houston

San Diego

Melbourne

Orlando

Tampa

TOTAL                               [$4,000,000]


                                      73
<PAGE>

                                ASSIGNMENT FORM

     If you the Holder want to assign this Note, fill in the form below and have
your signature guaranteed:

I or we assign and transfer this Note to:
                                          ___________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
(Print or type name, address and zip code and social security or tax ID number
of assigned)

and irrevocably appoint                           , agent to
                        __________________________
transfer this Note on the books of the Company.  The agent may substitute
another to act for him.

Date:             Signed:
       ----------         -------------------------------------------
                 (Sign exactly as name appears on the other side of this Note)

Signature Guarantee:

________________________________________________
            SIGNATURE GUARANTEE

     Signatures must be guaranteed by an "eligible guarantor institution"
meeting the requirements of the Registrar, which requirements include membership
or participation in the Security Transfer Agent Medallion Program ("STAMP") or
such other "signature guarantee program" as may be determined by the Registrar
in addition to, or in substitution for, STAMP, all in accordance with the
Securities Exchange Act of 1934.

                                      74
<PAGE>

                        FORM OF CERTIFICATE OF TRANSFER

TeleCorp PCS, Inc.
1010 Glebe Road, Suite 800
Arlington, VA  22201

[Name and Address of Registrar

     Re:  __% Senior Subordinated Discount Notes due _____, Series E

     Reference is hereby made to the Indenture, dated as of _______, 1999 (the
"Base Indenture"), between TeleCorp PCS, Inc. (the "Company") and ____________,
as trustee (the "Trustee") as supplemented by a Third Supplemental Indenture,
dated as of _________, 1999 (the "Third Supplemental Indenture") among the
Company and the Trustee (the Base Indenture and the Third Supplemental Indenture
are referred to herein as the "Indenture").  Capitalized terms used but not
defined herein shall have the meanings given to them in the Indenture.

      ____________, (the "Transferor") owns and proposes to transfer the Note[s]
specified in Annex A hereto in the principal amount at maturity of $__________
in such Note[s] (the "Transfer'), to _________ (the "Transferee"), as further
specified in Annex A hereto.  This Certificate is accompanied by one or more
certificates aggregating at least the principal amount at maturity of the Notes
proposed to be transferred.  The Transferor hereby certifies that:

Check and complete if Transferee will take delivery of a Note pursuant to Rule
144A or Regulation S.

One or more of the events specified in the Indenture have occurred and the
Transfer is being effected in compliance with the transfer restrictions
applicable to Notes bearing the Private Placement Legend and pursuant to and in
accordance with the United States Securities Act of 1933 (the "Securities Act"),
and accordingly the Transferor hereby further certifies that (check one):

     (a) such Transfer is being effected pursuant to and in accordance with Rule
144A under the Securities Act and the Transferor certifies to that the Transfer
is being effected pursuant to and in accordance with Rule 144A and, accordingly,
the Transferor hereby further certifies that the Notes are being transferred to
a Person that the Transferor reasonably believes is purchasing the Notes for one
or more accounts with respect to which such Person exercises sole investment
discretion, and such Person and each such account is a "qualified institutional
buyer" within the meaning of Rule 144A in a transaction meeting the requirements
of Rule 144A and such Transfer is in compliance with a applicable blue sky
securities laws of any state of the United States.  Upon consummation of the
proposed Transfer in accordance with the terms of the



<PAGE>

Indenture, the transferred Note will be subject to the restrictions on transfer
enumerated in the Private Placement Legend and in the Indenture and the
Securities Act ; or

     (b) such Transfer is being effected pursuant to an in accordance with Rule
904 under the Securities Act and the Transferor that the  Transfer is being
effected pursuant to and in  accordance with Rule 904 and, accordingly, the
Transferor hereby further certifies that (i) the Transfer is not being made to a
person in the United States and (x) at the time the buy order was originated,
the Transferee was outside the United States or such Transferor and any Person
acting on its behalf reasonably believed and believes that the Transferee was
outside the United States or (y) the transaction was executed in, on or through
the facilities of a designated offshore securities market and neither such
Transferor nor any Person acting on its behalf knows that the transaction was
prearranged with a buyer in the United States, (ii) no directed selling efforts
have been made in contravention of the requirements of Rule 904(b) of Regulation
S under the Securities Act and (iii) the transaction is not part of a plan or
scheme to evade the registration requirements of the Securities Act.  Upon
consummation of the proposed transfer in accordance with the terms of the
Indenture, the Note will be subject to the restrictions on Transfer enumerated
in the private placement legend printed on any global Series E Note issued under
Regulation S and in the Third Supplemental Indenture and the Securities Act.

This certificate and the statements contained herein are made for your benefit
and the benefit of the Company.

Dated:
                              [Insert Name of Transferor]

                              By:
                                 Name:
                                 Title:



<PAGE>

                                                                Exhibit 10.12

December 21, 1998

Mr. Tom Sullivan
Executive Vice President
Telecorp Communications, Inc.
1101 17/th/ Street, Suite 900
Washington, DC 20036

                              Letter of Agreement

Dear Tom:

This Letter of Agreement ("LOA") serves to identify the terms by which AT&T
Wireless Services, Inc. ("AWS") will arrange to purchase interstate and
intrastate long distance voice and/or data services (the "Services") from AT&T
Carrier Markets ("Carrier Markets") for the shared use of Telecorp
Communications, Inc. ("Carrier") and other Affiliated Markets as such term is
defined below.  If you are in agreement with the terms described herein, please
sign below.

Sharing Arrangement
In exchange for making certain volume commitments to Carrier Markets, AWS has
negotiated the right to purchase the Services at the rates specified in LOA
Attachments 1 and 2, respectively, so that Affiliated Markets can share the use
of these Services at such rates.  By sharing the Services, with AWS as the
intermediary enabling such sharing, the Affiliated Markets can efficiently
obtain the Services at the best possible terms and conditions.  For the Services
they purchase under this LOA, Affiliated Markets will pay the rates that AWS
pays to Carrier Markets for such services, as specified in LOA Attachments 1 and
2.  AWS does not mark up the charges for the Services or receive any type of
commission or fee.

Affiliated Market Status
This sharing arrangement is for the benefit of Affiliated Markets, and Carrier's
eligibility to purchase the Services under this LOA is contingent upon Carrier
maintaining its status as an Affiliated Market.  An Affiliated Market means any
facilities-based company that: (a) is controlled by AWS; (b) is an entity in
which AWS has at least fifty percent (50%) voting interest; (c) shares switching
facilities with AWS; (d) is managed by AWS; (e) has purchased a portion of CMRS
spectrum from AWS in which AWS maintains an ownership interest; or (f) is a
party to an agreement providing for the interoperability of Carrier's system and
AWS' system as each is operated in accordance with the IS-136 or

                               AT&T PROPRIETARY
<PAGE>

                                                            Letter of Agreement
                                                              December 21, 1998
                                                                    Page 2 of 6


successor standard. The terms and conditions identified in this LOA will
terminate no later than three (3) months after the cessation of Carrier as an
Affiliated Market or immediately upon termination of AWS' contract with Carrier
Markets. AWS agrees it will endeavor to provide Carrier with a minimum of three
(3) months notice of such termination. In addition, AWS may terminate this LOA
upon any breach by Carrier of the AT&T Wireless Services Network Membership
License Agreement between AT&T Corp. and Telecorp PCS, Inc. dated as of July 17,
1998 which breach is not cured in accordance with the provisions of such
agreement.

Provision of Service and Rates
Carrier may order any of the Services described in LOA Attachments 1 and 2 and
AWS will provide those Services to Carrier pursuant to this LOA.  Carrier agrees
to pay all recurring and nonrecurring charges for the Services it orders as
specified in LOA Attachments 1 and 2.  (Carrier will need to contact appropriate
personnel at Carrier Markets with specific information to determine pricing for
certain data elements.)  Please note that volume and minimum revenue commitments
between AWS and Carrier Markets in LOA Attachments 1 and 2 are confidential and
have been blacked out.

Taxes and Surcharges
Carrier shall pay any applicable local, state, federal, public utilities, gross
receipts or other taxes, surcharges, assessments, recoveries or fees imposed on
AWS, Carrier Markets or Carrier as a result of the sale, installation, use or
provision of the Services described in this LOA, except to the extent customer
provides a valid tax exemption certificate to AT&T prior to the delivery of
Services and except for taxes based on AWS' or Carrier Markets' net income.
Consistent with FCC rules, because Carrier is not an end user, Carrier Markets
will not impose any Federal Universal Service Fund surcharges on the Services.
However, if the FCC changes its rules in this regard, Carrier Markets will
adjust its imposition of surcharges accordingly.

Volume Commitment
Carrier agrees to the Minimum Traffic Volume Commitment(s) as specified in LOA
Attachment 3.  AWS and Carrier agree that the Minimum Traffic Volume
Commitment(s) will be adjusted a minimum of once each calendar year at the time
specified by AWS.  Such Minimum Traffic Volume Commitment(s) may be adjusted
more frequently upon mutual agreement between AWS and Carrier.  During the first
calendar year, the Minimum Traffic Volume Commitment for Carrier shall be as
specified by Carrier at its sole discretion.  Following the first calendar year,
the Minimum Traffic Volume Commitment for Carrier may be increased any amount or
may be decreased by any amount up to ten percent (10%) at Carriers' sole
discretion.  If Carrier

                               AT&T PROPRIETARY
<PAGE>

                                                            Letter of Agreement
                                                              December 21, 1998
                                                                    Page 3 of 6


proposes to reduce the Minimum Traffic Volume Commitments by more than ten
percent (10%), it may do so only with AWS' permission.

If Carrier fails to meet any minimum traffic volumes, Carrier will pay a
Shortfall Charge equal to the difference between the charges for the Minimum
Traffic Volume Commitment and the amount of eligible charges for that Minimum
Traffic Volume Commitment incurred during the commitment period.  The Shortfall
Charge will be calculated as follows for voice traffic: the difference between
Carrier's Minimum Voice Traffic Volume Commitment (in terms of Minutes of Use)
and the actual voice traffic volume will be multiplied by $0.0360.  The
Shortfall Charge will be calculated as follows for data traffic: 1) the
difference between Carrier's Minimum Data DS I Volume Commitment (in terms of
the number of DS Is) and the actual DS I volume will be multiplied by $1,121; 2)
the difference between Carrier's Minimum Data DS') Volume Commitment (in terms
of the number of DS3s) and the actual DS3 volume will be multiplied by $7,227;
3) Carrier will be charged the difference between Carrier's Minimum Frame Relay
Commitment (in terms of dollars per month) and the average of Carrier's actual
Frame Relay monthly charges.  AWS will use the Shortfall Charge it collects from
Carrier to pay any Shortfall Charges AWS is obligated to pay Carrier Markets.
If the Shortfall Charges that AWS collects from all of the Affiliated Markets
participating in the sharing arrangement exceed the amount of the shortfall
charge that AWS must pay Carrier Markets, AWS will refund to Carrier its pro
rata share of the overage.

Carrier is not obligated to meet that portion of their Minimum Data Volume
Commitment for which Carrier Markets is unable to deliver service within a
reasonable time frame.  A reasonable time frame for delivery of baseline service
(POP, or point-of-presence, to POP) is defined as approximately fourteen (14)
business days for DS1s and twenty-five (25) business days for DS3s.  The
reasonable time frame for delivery of DS1s and DS3s may be extended if the Local
Exchange Carrier requires a longer installation interval.  A reasonable time
frame for the delivery of Frame Relay is defined as approximately thirty-five
(35) calendar days.  Please note that Carrier must provide accurate tie-down
information and a "firm order" must be placed in the Carrier Markets
provisioning system before the time frames identified above become valid.

As applicable, Carrier agrees to provide a fifteen (15) month voice traffic
volume forecast document to AWS on a quarterly basis for use in network
planning.  AWS will provide Carrier with the format for the traffic volume
forecast document.

                               AT&T PROPRIETARY
<PAGE>

                                                            Letter of Agreement
                                                              December 21, 1998
                                                                    Page 4 of 6

Rate Review
At the initiation of Carrier, not more than one time within any twelve (12)
month period, the parties agree to review the rates for the Services described
in this LOA.  If Carrier wishes to adjust the rates, Carrier must provide
evidence to AWS that substantially lower rates are offered by other
interexchange providers for Services that are comparable in quality and have
comparable minimum volume and duration requirements.  Upon receipt of such
evidence AWS will use good faith efforts to work with Carrier to adjust the
rates, if appropriate, in order to ensure that such rates are reasonably
competitive.

Billing
Carrier will be billed monthly for the Services it purchases from AWS.  Payment
is due upon presentation of a bill, and must be received no later than thirty
(30) days after the bill date.  For voice services, the bill date is the day
after the end of the usage period covered by the bill; for data services, the
bill date is the first day of the service period covered by the bill.  Any
charges not paid within such a period will be considered past due.  Interest
charges may be added to any past due amounts at the lower of twelve percent
(12.0%) per year or the maximum rate allowed by law.

If Carrier wishes to dispute a charge-on a bill, Carrier must identify the
amount of the disputed charge and provide a full written explanation of the
basis for the dispute within ninety (90) days after the bill date.  A pending
billing dispute does not relieve Carrier of the obligation to pay the disputed
charge.

Marks
Nothing in this LOA creates in Carrier any rights in the AT&T or AWS'
tradenames, trademarks, service marks or any other intellectual property of AT&T
or AWS.

Account Team Support
Carrier will be supported directly by a Carrier Markets account team consisting
of a sales manager, voice and/or data account executives, as well as technical
and customer care support.  All orders should be placed directly with the
Carrier Markets account team and all issues and concerns regarding Services
contracted for under this LOA should be addressed directly with such account
team members.

CMRS
The Services that AWS purchases from Carrier Markets for Carrier under this LOA
are provided to Carrier solely for Carrier's provision of the Services to its
commercial mobile radio services ("CMRS") customers, for calls that originate on
Carrier's CMRS system and those CMRS systems that share Carrier's switches, and
not for any other purpose.

                          AT&T PROPRIETARY
<PAGE>

                                                            Letter of Agreement
                                                              December 21, 1998
                                                                    Page 5 of 6


Compliance with Master Carrier Agreement
Carrier agrees to comply with the obligations imposed on Customer and its End
Users as set forth in Paragraphs 9 through 14 and 16 through 35 of the attached
Master Carrier Agreements (LOA Attachments I and 2 and the attachments thereto),
and to afford AWS the same rights and protections afforded to AT&T thereunder.
AWS and Carrier Markets will afford Carrier the rights and protections, if any,
afforded to Customer and its End Users under Paragraphs 9 through 14 and 16
through 35 of the attached Master Carrier Agreements (LOA Attachments 1 and 2
and the attachments thereto).

Confidentiality
All information contained in this LOA and its Attachments is considered
confidential and is governed by the confidentiality agreement(s) in place
between AWS and Carrier, together with the Confidentiality provision in
Paragraph 20 of the attached Master Carrier Agreements (LOA Attachments 1 and
2).

Term
The Term of this LOA runs concurrently with the Terms of the long distance data
services and long distance voice services Master Carrier Agreements (LOA
Attachments 1 and 2 and the attachments thereto).  These Terms are approximately
36 months from the first day of the first full billing month of the first
service provided to the first Affiliated Market under each of the respective
Master Carrier Agreements.  Accordingly, the Term of this LOA for Carrier may be
shorter than 36 months.

Specifically, the long distance voice services Master Carrier Agreement (LOA
Attachment 1 and the attachments thereto) provides that:

     "The Term of this Attachment consists of a Ramp-Up Period of 6
     months and a Full Service Period of 36 months. The Ramp-Up Period
     begins on the first full billing month for the first service
     provided under this Attachment. For each service provided under
     this Attachment, the Full Service Period begins on the day after
     the Ramp-Up Period ends, which day is referred to as the Term
     Start Date."

Specifically, the long distance data services Master Carrier Agreement (LOA
Attachment 2 and the attachments thereto) provides that:

     "The Term of this Attachment is 36 months. For each service
     provided under this Attachment, the Term begins on the first day
     of the first full billing month for the first service provided
     under this Attachment, which day is referred to as the Customer's
     Initial Service Date (CISD). Different Services may have
     different billing cycles, and so the billing months may

                               AT&T PROPRIETARY
<PAGE>

                                                            Letter of Agreement
                                                              December 21, 1998
                                                                    Page 6 of 6


     be staggered. For each service, however, the Term will begin
     within one month after the Term begins for the first service
     provided under this Agreement."

If Carrier decides to terminate this LOA prior to the end of such Term, Carrier
will be liable for the Minimum Traffic Volume Commitment(s) made above through
the end of said Term.

Sincerely,
AT&T WIRELESS SERVICES, INC.

 /s/ Kerri Landeis
- ----------------------------------------
Kerri Landeis
Director, External Affairs

Accepted and agreed:

Telecorp Communications, Inc.

By: /s/ Thomas H. Sullivan
    ------------------------------------
    Signature

Thomas H. Sullivan
- ----------------------------------------
Printed Name

President
- ----------------------------------------
Title

January 4, 1999
- ----------------------------------------
Date

Attachment 1 - Voice Contract
Attachment 2 - Data Contract
Attachment 3 - Minimum Traffic Volume Commitments

                          AT&T PROPRIETARY

<PAGE>

                                                                   EXHIBIT 10.13

                           ASSET PURCHASE AGREEMENT

                                    between

                            AT&T WIRELESS PCS INC.

                                      and

                              TELECORP PCS, INC.

                           Dated as of May 24, 1999
<PAGE>

                                TABLE OF CONTENTS
                                -----------------

<TABLE>
<CAPTION>
                                                                                                               Page
                                                                                                               ----
<S>                                                                                                            <C>
ARTICLE I - DEFINITIONS....................................................................................       1

ARTICLE II - PURCHASE AND SALE OF ASSETS; PAYMENT OF
             CONSIDERATION; CERTAIN RESTRICTIONS ON TRANSFER...............................................       8
         2.1          Purchase and Sale of Purchased Assets................................................       8
         2.2          Payment of Consideration.............................................................       9
         2.3          Assumption of Obligations............................................................       9
         2.4          Company Reimbursement of AT&T Puerto Rico's Cost of
                      Certain Employees....................................................................      10
         2.5          No Expansion of Third-Party Rights...................................................      11
         2.6          Payment of Certain Expenses..........................................................      11
         2.7          Allocation of Purchase Price.........................................................      11

ARTICLE III - CLOSING......................................................................................      12
         3.1          Time and Place of Closing............................................................      12
         3.2          Closing Actions and Deliveries.......................................................      12
         3.3          Closing Costs; Taxes and Fees........................................................      14
         3.4          Acquisition Corp. Stockholder Transaction............................................      15

ARTICLE IV - COVENANTS.....................................................................................      15
         4.1          Consummation of Transactions.........................................................      15
         4.2          Confidentiality......................................................................      16
         4.3          Covenants of AT&T PCS................................................................      17
         4.4          Covenants of the Company.............................................................      18
         4.5          Employees............................................................................      19
         4.6          Assignment of Assigned Agreements and AT&T PCS
                      Sold License.........................................................................      20
         4.7          FCC Construction Requirement.........................................................      20
         4.8          Non-Solicitation.....................................................................      20
         4.9          Lien Searches........................................................................      21
         4.10         Environmental Due Diligence..........................................................      21

ARTICLE V - REPRESENTATIONS AND WARRANTIES OF AT&T PCS.....................................................      22
         5.1          Organization, Power and Authority....................................................      22
         5.2          Consents; No Conflicts...............................................................      22
         5.3          Litigation...........................................................................      23
         5.4          FCC Compliance.......................................................................      23
</TABLE>

                                       i
<PAGE>

<TABLE>
<S>                                                                                                              <C>
         5.5          Brokers..............................................................................      23
         5.6          Stockholders' Agreement..............................................................      23
         5.7          License..............................................................................      23
         5.8          Title to Purchased Assets............................................................      24
         5.9          Assigned Agreements..................................................................      24
         5.10         Environmental Matters................................................................      24
         5.11         Compliance With Laws.................................................................      25
         5.12         Employees; Employee Benefits.........................................................      25

ARTICLE VI - REPRESENTATIONS AND WARRANTIES OF THE COMPANY.................................................      25
         6.1          Organization, Power and Authority....................................................      25
         6.2          Consents; No Conflicts...............................................................      26
         6.3          Litigation...........................................................................      26
         6.4          FCC Compliance.......................................................................      27
         6.5          Brokers..............................................................................      27
         6.6          Stockholders' Agreement..............................................................      27
         6.7          No Additional Representations........................................................      27
         6.8          Compliance With Laws.................................................................      27
         6.9          No Material Adverse Effect...........................................................      27
         6.10         Capitalization.......................................................................      27
         6.11         Employees............................................................................      28

ARTICLE VII - CLOSING CONDITIONS...........................................................................      28
         7.1          Conditions to Obligations of All Parties.............................................      28
         7.2          Conditions to Obligations of the Company.............................................      29
         7.3          Conditions to the Obligations of AT&T PCS............................................      30

ARTICLE VIII - SURVIVAL AND INDEMNIFICATION................................................................      30
         8.1          Survival.............................................................................      30
         8.2          Indemnification by AT&T PCS..........................................................      31
         8.3          Indemnification by the Company.......................................................      32
         8.4          Procedures...........................................................................      33

ARTICLE IX - TERMINATION...................................................................................      34
         9.1          Termination..........................................................................      34
         9.2          Effect of Termination................................................................      34

ARTICLE X - MISCELLANEOUS PROVISIONS.......................................................................      35
         10.1         Amendment and Modification...........................................................      35
         10.2         Waiver of Compliance; Consents.......................................................      35
         10.3         Notices..............................................................................      35
         10.4         Designated Purchasers................................................................      36
</TABLE>

                                      ii
<PAGE>

<TABLE>
         <S>                                                                                                     <C>
         10.5         Parties in Interest; Assignment......................................................      36
         10.6         Applicable Law.......................................................................      36
         10.7         Counterparts.........................................................................      36
         10.8         Interpretation.......................................................................      36
         10.9         Entire Agreement.....................................................................      36
         10.10        Publicity............................................................................      37
         10.11        Specific Performance.................................................................      37
         10.12        Remedies Cumulative..................................................................      37
         10.13        Severability.........................................................................      37
         10.14        Beneficiaries of Agreement...........................................................      37
         10.15        Waiver of Purchase Right Pursuant to Securities Purchase Agreement...................      37
         10.16        Alternative Arrangement Term Sheet...................................................      37
         10.17        Certain Payments.....................................................................      38
</TABLE>

                                      iii
<PAGE>

                           ASSET PURCHASE AGREEMENT
                           ------------------------

          ASSET PURCHASE AGREEMENT (the "Agreement"), dated as of May 24, 1999,
                                         ---------
between AT&T WIRELESS PCS INC., a Delaware corporation ("AT&T PCS"), and
                                                         --------
TELECORP PCS, INC., a Delaware corporation (the "Company").
                                                 -------

                             W I T N E S S E T H:
                             -------------------

          WHEREAS, AT&T PCS has been granted the PCS License for the Puerto
Rico - U.S. Virgin Islands (the "Puerto Rico MTA") described on Schedule I
                                 ---------------
(the "PCS License");
      -----------

          WHEREAS, AT&T PCS and Puerto Rico Acquisition Corp., a Delaware
corporation ("Acquisition Corp."), entered into a Term Sheet, dated September 1,
              -----------------
1998 (the "Acquisition Corp. Term Sheet"), setting forth the terms upon which
           ----------------------------
Acquisition Corp. would acquire from AT&T PCS the Purchased Assets (as
hereinafter defined), which include the PCS License;

          WHEREAS, Acquisition Corp. and the Company have entered into an
agreement pursuant to which contemporaneously with the Closing (as hereinafter
defined) the stockholders of Acquisition Corp. will engage in a stock-for-stock
exchange, whereby such stockholders will transfer all of the stock of
Acquisition Corp. to a subsidiary of the Company in exchange for shares of
capital stock of the Company, thereby resulting in Acquisition Corp. becoming an
indirect wholly-owned Subsidiary (as hereinafter defined) of the Company and
facilitating the Company's obtaining the rights under the Acquisition Corp. Term
Sheet; and

          WHEREAS, AT&T PCS wishes to sell to the Company, and the Company
wishes to acquire from AT&T PCS, the Purchased Assets, all on the terms and
subject to the conditions herein set forth.

          NOW, THEREFORE, in consideration of the promises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the parties agree as follows:

                                   ARTICLE I
                                  DEFINITIONS
                                  -----------

     For purposes of this Agreement:

          "Acquisition Corp." has the meaning set forth in the recitals.
           -----------------

          "Acquisition Corp. Term Sheet" has the meaning set forth in the
           ----------------------------
recitals.
<PAGE>

          "Affiliate" means, with respect to any Person, any other Person that
           ---------
directly, or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with that Person. For purposes of this
definition, "control" (including the terms "controlling" and "controlled") means
             -------                        -----------       ----------
the power to direct or cause the direction of the management and policies of a
Person, directly or indirectly, whether through the ownership of securities or
partnership or other ownership interests, by contract or otherwise.

          "Agreement" means this Asset Purchase Agreement, as the same may be
           ---------
amended, modified or supplemented in accordance with the terms hereof.

          "Alternative Arrangement Term Sheet" means that certain Term Sheet
           ----------------------------------
attached hereto as Schedule II, with respect to one or more of the F Block
licenses referred to therein.

          "Assigned Agreements" has the meaning set forth in Section 2.1(b).
           -------------------

          "Assumed Liabilities" has the meaning set forth in Section 2.3(a).
           -------------------

          "AT&T PCS" has the meaning set forth in the preamble.
           --------

          "AT&T PCS Material Adverse Effect" means a material adverse effect on
           --------------------------------
the AT&T PCS Sold License.

          "AT&T PCS Retained License" has the meaning set forth in Section 2.1.
           -------------------------

          "AT&T PCS Sold License" has the meaning set forth in Section 2.1.
           ---------------------

          "AT&T Party" means AT&T PCS and each Affiliate of AT&T PCS that is a
           ----------
party to any of the Related Agreements.

          "AT&T Puerto Rico" has the meaning set forth in Section 2.4.
           ----------------

          "Benefit Arrangement" means any employment, severance or similar
           -------------------
contract or arrangement (whether or not written) or any plan, policy, fund,
program or contract or arrangement (whether or not written) providing for
compensation, bonus, profit-sharing, stock option, or other stock related rights
or other forms of incentive or deferred compensation, vacation benefits,
insurance coverage (including any self-insured arrangements), health or medical
benefits, disability benefits, workers' compensation, supplemental unemployment
benefits, severance benefits and post-employment or retirement benefits
(including compensation, pension, health, medical or life insurance or other
benefits) or any other benefit that (i) is not an Employee Plan, (ii) is entered
into, maintained, administered or contributed to, as the case may be, by AT&T
PCS, AT&T Puerto Rico or any of their Affiliates, and (iii) covers any employee
or former employee of AT&T Puerto Rico
<PAGE>

or any employee or former employees of AT&T PCS providing services in the United
States or Puerto Rico in connection with AT&T Puerto Rico.

          "Business Day" means any day other than a Saturday, Sunday or a legal
           ------------
holiday in New York, New York or any other day on which commercial banks in New
York, New York are authorized by law or governmental decree to close.

          "BTA" means the unit of division (of which there are four hundred
           ---
ninety-three (493)) for the United States of America, devised by Rand McNally
based upon geography, population and other factors, which units form the basis
for the auction by the FCC of a portion of the License for PCS Systems for Basic
Trading Areas, as defined by the FCC.

          "Claim" has the meaning set forth in Section 8.4(a).
           -----

          "Closing" has the meaning set forth in Section 3.1.
           -------

          "Closing Date" has the meaning set forth in Section 3.1.
           ------------

          "Code" means the Internal Revenue Code of 1986, as amended.
           ----

          "Common Stock" has the meaning set forth in the Securities Purchase
           ------------
Agreement.

          "Company" has the meaning set forth in the preamble.
           -------

          "Company Material Adverse Effect" means a material adverse effect on
           -------------------------------
the business, financial condition, assets, liabilities or results of operations,
taken as a whole, of the Company.

          "Confidential Information" means any and all information regarding the
           ------------------------
business, finances, operations, products, services and customers of the Person
specified and its Affiliates, in written or oral form or in any other medium.

          "Consents" means all consents and approvals of Governmental
           --------
Authorities or other third parties necessary to authorize, approve or permit the
parties hereto to consummate the Transactions and for the Company to operate its
business after the Closing Date as currently contemplated.

          "Designated Purchaser" has the meaning set forth in Section 10.4.
           --------------------

          "Employees" has the meaning set forth in Section 2.4.
           ---------

          "Employee Payment" has the meaning set forth in Section 2.4.
           ----------------

                                       3
<PAGE>

          "Employee Plan" means any "employee benefit plan", as defined in
           -------------
Section 3(3) of ERISA, that (i) is subject to any provision of ERISA, (ii) is
maintained, administered or contributed to by AT&T PCS, AT&T Puerto Rico or any
of their Affiliates, and (iii) covers any employee or former employee of AT&T
Puerto Rico or any current or former employee of AT&T PCS providing services in
the United States or Puerto Rico in connection with AT&T Puerto Rico.

          "Environmental Law" means any of the following: the Resource
           -----------------
Conservation Recovery Act, the Comprehensive Environmental Responsibility
Compensation and Liability Act, the Superfund Amendments and Reauthorization
Act, the Toxic Substances Control Act, the Hazardous Materials Transportation
Act, the Clean Air Act, the Clean Water Act, and other similar Federal and state
and local laws, as amended, together with all regulations issued or promulgated
thereunder, relating to pollution, the protection of the environment or the
health and safety of workers or the general public.

          "Excluded Liabilities" has the meaning set forth in Section 2.3(a).
           --------------------

          "FCC" means the Federal Communications Commission or similar
           ---
regulatory authority established in replacement thereof.

          "FCC Law" means the Communications Act of 1934, as amended, including
           -------
as amended by the Telecommunications Act of 1996, and the rules, regulations and
policies promulgated thereunder.

          "Final Order" has the meaning set forth in Section 7.1(b).
           -----------

          "Governmental Authority" means a Federal, state or local court,
           ----------------------
legislature, governmental agency, commission or regulatory or administrative
authority or instrumentality.

          "Hazardous Material" shall mean anything defined as a "hazardous
           ------------------
substance," "hazardous material," "hazardous waste," "pollutant," "contaminant,"
"toxic substance" or other similar item in any Environmental Law.

          "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements Act of
           -------
1976, as amended, and the rules and regulations promulgated thereunder.

          "Indemnified Party" has the meaning set forth in Section 8.4(a).
           -----------------

          "Indemnifying Party" has the meaning set forth in Section 8.4(a).
           ------------------

          "Independent Accountant" means Arthur Andersen LLP.
           ----------------------

                                       4
<PAGE>

          "Law" means applicable common law and any statute, ordinance, code or
           ---
other law, rule, permit, permit condition, regulation, order, decree, technical
or other standard, requirement or procedure enacted, adopted, promulgated,
applied or followed by any Governmental Authority.

          "License" means a license, permit, certificate of authority, waiver,
           -------
approval, certificate of public convenience and necessity, registration or other
authorization, consent or clearance to construct or operate a facility,
including any emissions, discharges or releases therefrom, or to transact an
activity or business, to construct a tower or to use an asset or process, in
each case issued or granted by a Governmental Authority.

          "License Transfer" has the meaning set forth in Section 3.2(a).
           ----------------

          "Lien" means, with respect to any asset, any mortgage, lien, pledge,
           ----
charge, security interest, right of first refusal or right of others therein, or
encumbrance of any nature whatsoever in respect of such asset.

          "Losses" has the meaning set forth in Section 8.2.
           ------

          "Management Agreement" means the Management Agreement between the
           --------------------
Company and TeleCorp Management Corp., dated July 17, 1998, as the same may be
amended, modified or supplemented in accordance with the terms thereof.

          "Microwave Clearing Reimbursement Payment" has the meaning set forth
           ----------------------------------------
in Section 2.2(a).

          "MTA" means the unit of division (of which there are fifty-one (51))
           ---
for the United States of America, devised by Rand McNally based upon geography,
population and other factors, which units form the basis for the auction by the
FCC of a portion of the Licenses for PCS Systems for Major Trading Areas, as
defined by the FCC.

          "Network Membership License Agreement" means the Network Membership
           ------------------------------------
License Agreement between the Company and AT&T Corp., dated as of July 17, 1998,
as the same may be amended, modified or supplemented in accordance with the
terms thereof.

          "New York Courts" has the meaning set forth in Section 10.6.
           ---------------

          "PCS" means Personal Communications Services, which is the term that
           ---
describes the services that may be provided as a result of obtaining the AT&T
PCS Sold License under FCC Law.

          "PCS License" has the meaning set forth in the recitals.
           -----------

                                       5
<PAGE>

          "Person" means an individual, corporation, partnership, limited
           ------
liability company, association, joint stock company, Governmental Authority,
business trust, unincorporated organization, or other legal entity.

          "Potentially Rejected Sites" has the meaning set forth in Section
           --------------------------
4.11.

          "Preferred Stock" has the meaning set forth in the Securities Purchase
           ---------------
Agreement.

          "Puerto Rico MTA" has the meaning set forth in the recitals.
           ---------------

          "Purchase Price" has the meaning set forth in Section 2.2(a).
           --------------

          "Purchased Assets" means the assets described in Section 2.1.
           ----------------

          "Related Agreement Amendments" means Amendment No. 1 to Network
           ----------------------------
Membership License Agreement, Amendment No. 1 to Stockholders' Agreement and
Amendment No. 1 to Intercarrier Roamer Service Agreement, attached hereto as
Schedule III, IV and V, respectively, which amend certain of the Related
Agreements to give effect to, among other things, the Purchased Assets acquired
by the Company upon the Closing.

          "Related Agreements" means the Management Agreement, Network
           ------------------
Membership License Agreement, Resale Agreement, Roaming Agreement and
Stockholders' Agreement.

          "Representatives" has the meaning set forth in Section 4.2(a).
           ---------------

          "Resale Agreement" means the form of Resale Agreement attached as
           ----------------
Exhibit C to the Securities Purchase Agreement, dated as of January 23, 1998,
among AT&T PCS, the Company and the other parties named therein, as the same may
be amended, modified or supplemented in accordance with the terms thereof.

          "Restated Certificate" means the Amended and Restated Certificate of
           --------------------
Incorporation of the Company, dated as of July 17, 1998, as the same may be
amended, modified or supplemented in accordance with the terms thereof.

          "Roaming Agreement" means the Intercarrier Roamer Service Agreement
           -----------------
between the Company and AT&T Wireless Services, Inc., dated as of July 17, 1998,
as the same may be amended, modified or supplemented in accordance with the
terms thereof.

          "Search Results" has the meaning set forth in Section 4.9.
           --------------

          "Section 8.2 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.2.

          "Section 8.3 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.3.

                                       6
<PAGE>

          "Section 1031 Escrow" has the meaning set forth in Section 2.2(b).
          --------------------

          "Section 1031 Exchange" has the meaning set forth in Section 2.2(b).
          ----------------------

          "Securities" means the shares of Series A Preferred Stock, Series D
           ----------
Preferred Stock and Series F Preferred Stock being issued hereunder, together
with any shares of Preferred Stock or Common Stock issued upon conversion of or
delivered in substitution or exchange of any of the foregoing.

          "Securities Act" means the Securities Act of 1933, as amended.
           --------------

          "Securities Purchase Agreement" means the Puerto Rico Securities
           -----------------------------
Purchase Agreement, dated as of March 30, 1999, among the Company, Puerto Rico
Acquisition Corp., the management stockholders named therein and the cash equity
investors named therein, as the same may be amended, modified or supplemented in
accordance with the terms thereof.

          "Stockholders" has the meaning set forth in the Stockholders
           ------------
Agreement.

          "Stockholders' Agreement" means the Stockholders' Agreement of the
           -----------------------
Company, dated as of July 17, 1998, as the same may be amended, modified or
supplemented in accordance with the terms thereof.

          "Subsidiary" shall mean, with respect to any Person, a corporation or
           ----------
other entity of which 50% or more of the voting power or the voting equity
securities or equity interest is owned, directly or indirectly, by such Person.

          "1031 Agent" has the meaning set forth in Section 3.2(b).
           ----------

          "Third Party Proposal" has the meaning specified in Section 4.8.
           --------------------

          "Termination Date" has the meaning specified in Section 6.12.
           ----------------

          "Transactions" means the transactions contemplated by this Agreement.
           ------------

     When a reference is made in this Agreement to an Article or a Section, such
reference shall be to an Article or a Section of this Agreement unless otherwise
indicated. Unless the context otherwise requires, the terms defined hereunder
shall have the meanings therein specified for all purposes of this Agreement,
applicable to both the singular and plural forms of any of the terms defined
herein. Whenever the words "include," "includes" or "including" are used in this
Agreement, they shall be deemed to be followed by the words "without
limitation." The use of a gender herein

                                       7
<PAGE>

shall be deemed to include the neuter, masculine and feminine genders whenever
necessary or appropriate. Whenever the word "herein" or "hereof" is used in this
Agreement, it shall be deemed to refer to this Agreement and not to a particular
Section of this Agreement unless expressly stated otherwise.

                                  ARTICLE II
            PURCHASE AND SALE OF ASSETS; PAYMENT OF CONSIDERATION;
            -----------------------------------------------------
                       CERTAIN RESTRICTIONS ON TRANSFER
                       --------------------------------

     II.1  Purchase and Sale of Purchased Assets. Upon the terms and subject
           -------------------------------------
to the conditions hereof and in reliance upon the representations, warranties,
covenants and agreements herein contained: (a) AT&T PCS shall partition and
disaggregate the PCS License to create, as more particularly described on
Schedule 2.1, (i) a License (the "AT&T PCS Sold License") providing in the
                                  ---------------------
aggregate the right to use 20 MHz of authorized frequencies to provide broadband
PCS services throughout the entirety of the Puerto Rico MTA, and (ii) a License
(the "AT&T PCS Retained License") providing in the aggregate the right to use 10
      -------------------------
MHz of the authorized frequencies under the PCS License to provide broadband PCS
services throughout the entirety of the Puerto Rico MTA, and (b) at the Closing,
AT&T PCS shall sell, transfer, assign, convey and deliver to the Company (or one
or more Designated Purchasers), free and clear of all Liens (other than those
arising under any of the obligations being assumed by the Company pursuant to
Section 2.3), and the Company shall purchase, acquire and accept from AT&T PCS,
the AT&T PCS Sold License. In addition to the AT&T PCS Sold License, upon the
terms and subject to the conditions hereof and in reliance upon the
representations, warranties, covenants and agreements herein contained, at the
Closing, AT&T PCS shall sell, transfer, assign, convey and deliver to the
Company (or one or more Designated Purchasers), free and clear of all Liens
(other than Liens securing the Assumed Liabilities), and the Company shall
purchase, acquire and accept from AT&T PCS, the following assets of AT&T PCS as
the same exist at the Closing Date (together with the AT&T PCS Sold License, the
"Purchased Assets"):
 ----------------

          (a) the towers, antennas, transmission lines, air conditioning units
and shelters owned by AT&T PCS and utilized solely in connection with the
development of a PCS system in the Puerto Rico MTA;

          (b) each of the leases described on Schedule 2.1(b) (collectively, the
"Assigned Agreements") entered into by AT&T PCS in connection with the
 -------------------
development of a PCS system in the Puerto Rico MTA;

          (c) all prepaid property taxes, prepaid rent and other prepaid
expenses and deposits of AT&T PCS relating to the development of a PCS system in
the Puerto Rico MTA; and

                                       8
<PAGE>

           (d) all rights and benefits obtained by AT&T PCS in respect of
microwave clearing of the frequencies covered by the AT&T PCS Sold License.

     II.2  Payment of Consideration. (a) Upon the terms and subject to the
           ------------------------
conditions hereof and in reliance upon the representations, warranties,
covenants and agreements herein contained, at the Closing, in consideration of
the assignment of the Purchased Assets, the Company shall pay to AT&T PCS by
wire transfer of immediately available funds the amount of Ninety-Five Million
($95, 000,000) Dollars (subject to adjustment pursuant to Section 2.3(b)) (the
"Purchase Price"). In addition to the Purchase Price, on the Closing Date the
 --------------
Company shall pay to AT&T PCS in respect of all rights and benefits obtained by
AT&T PCS in connection with microwave clearing of the frequencies covered by the
AT&T PCS Sold License, an amount equal to Three Million Two Hundred Thousand
($3,200,000) Dollars (the "Microwave Clearing Reimbursement Payment").
                           ----------------------------------------

           (b) Notwithstanding the provisions of Section 2.2(a), AT&T PCS, may
elect, by notice to the Company, to structure the transfer of the Purchased
Assets as a deferred like-kind exchange which qualifies under the provisions of
Section 1031 of the Code (a "Section 1031 Exchange"). If AT&T PCS elects to
                             ---------------------
treat the transactions contemplated hereunder as a Section 1031 Exchange, (i)
the Company agrees to cooperate with and assist AT&T PCS in any reasonable
actions necessary or appropriate to structure the parties' transactions
hereunder as a Section 1031 Exchange (including, without limitation, entering
into an escrow agreement containing standard escrow instructions normally found
in escrow agreements relating to exchanges of property under Section 1031); (ii)
all amounts payable to AT&T PCS pursuant to Section 2.2(a) and Section 2.3(b),
if any, shall be deposited by the Company with an escrow agent (the "1031
                                                                     ----
Agent") on the Closing Date in an escrow account (the "Section 1031 Escrow")
                                                       -------------------
pending completion or termination of the Section 1031 Exchange, (iii) AT&T PCS
may, in its sole discretion, elect to assign its rights under this Agreement to
the 1031 Agent on or before the Closing Date, it being understood that any such
assignment of AT&T PCS' rights under this Agreement shall not relieve AT&T PCS
from any of its obligations under this Agreement, including, any of its
obligations under Section 8.2. During the time that any amounts are held in the
Section 1031 Escrow, AT&T PCS shall have no right, title or interest in the
amounts so held and shall be expressly prohibited from pledging, borrowing,
exercising control over, receiving distributions from, or otherwise obtaining
any benefit from the Section 1031 Escrow except as provided herein or in the
escrow agreement with the Section 1031 Agent.

     II.3  Assumption of Obligations.
           -------------------------

           (a)   On and as of the Closing Date, the Company (or, if applicable,
the Company and any Designated Purchasers, jointly and severally) shall assume
and agree to discharge and perform, when due, those liabilities and obligations
accruing, arising out of or relating to events or occurrences on or after the
Closing Date under the Assigned Agreements (collectively, the "Assumed
                                                               -------
Liabilities"). Except for the Assumed Liabilities, neither the Company nor any
- -----------
of its Affiliates shall assume or in any way undertake to pay, perform, satisfy
or discharge any liabilities and obligations

                                       9
<PAGE>

of AT&T PCS, and AT&T PCS agrees to pay and satisfy when due any liabilities and
obligations relating to or arising out of the ownership of the Purchased Assets
other than the Assumed Liabilities (collectively, the "Excluded Liabilities").
                                                       --------------------

           (b) The Company and AT&T PCS hereby agree that AT&T PCS shall be
responsible for all payments and other obligations due and owing pursuant to the
Assigned Agreements for all periods prior to January 1, 1999 and the Company
shall be responsible for all such payments and obligations due and owing on
January 1, 1999 and all periods thereafter. Accordingly, all payments made by
AT&T PCS, and all obligations arising, under the Assigned Agreements shall be
prorated as of January 1, 1999, and the amounts thereof allocable or
attributable to periods ending prior to January 1, 1999 shall be for the account
of AT&T PCS and amounts thereof allocable or attributable to periods commencing
on and after January 1, 1999 shall be for the account of the Company. A
preliminary schedule of all adjustments pursuant to this Section 2.3(b) shall be
prepared by AT&T PCS and delivered to the Company promptly after the Closing
Date. The Company and its representatives will be provided with supporting
documentation used in the preparation thereof by AT&T PCS. The Company shall
have a period of five (5) Business Days following the date the Company receives
such preliminary schedule to review such preliminary schedule and supporting
documentation and provide AT&T PCS with written notice of any objections or
corrections thereto that the Company may have. A final schedule of such
adjustments (including the disputed adjustments) shall be prepared jointly by
the Company and AT&T PCS on or prior to the twentieth (20th) Business Day
following the date the Company receives such preliminary schedule. In the
absence of mutual agreement regarding such final schedule within such twenty
(20) Business Day period, the parties shall engage the Independent Accountant to
determine the amount of the adjustment to be made pursuant to this Section
2.3(b). The determination of the Independent Accountant shall be final, binding
and conclusive on the parties hereto, and the fees and expenses of the
Independent Accountant shall be borne equally by the parties. A final adjustment
to the Cash Purchase Price based upon such final schedule and payment of the net
amount thereof to which AT&T PCS or the Company shall be entitled under this
Section 2.3(b) shall be made on the twentieth (20th) Business Day following the
date the Company receives such preliminary schedule, or upon the determination
of the Independent Accountant, as the case may be. In connection with the final
calculation of any such adjustment, each party shall give to the other party and
its agents and representatives (including its independent auditors and
attorneys) and the Independent Accountant, reasonable access, during normal
business hours and upon reasonable notice, to the records, books, contracts and
documents reasonably requested by such other party or the Independent Accountant
for such purpose, furnish such other party and the Independent Accountant, with
all such information as such other party or the Independent Accountant may
reasonably request for such purpose and cause its appropriate officers,
employees, consultants, agents, accountants and attorneys to cooperate with such
attorneys and representatives and the Independent Accountant in connection
therewith.

     II.4  Company Reimbursement of AT&T Puerto Rico's Cost of Certain
           ------------------------------------------------------------
Employees. The Company hereby acknowledges that AT&T Puerto Rico, Inc., an
- ---------
Affiliate of AT&T PCS ("AT&T
                        ----

                                      10
<PAGE>

Puerto Rico"), made certain of its then current employees ("Employees")
- -----------                                                 -----------
available to perform services for the Company on the condition that at the
Closing the Company reimburse AT&T Puerto Rico in respect of the salary,
benefits and other costs incurred by AT&T Puerto Rico in connection with the
Employees. At the Closing, the Company shall reimburse and pay to AT&T Puerto
Rico $510,174, for costs (including the cost of salaries and benefits provided
to the Employees) incurred by AT&T Puerto Rico in connection with the Employees
(the "Employee Payment").
      ----------------

     II.5  No Expansion of Third-Party Rights. The assumption by the Company
           ----------------------------------
(or, if applicable, the Company and any Designated Purchasers) of the Assumed
Liabilities, and the transfer thereof by AT&T PCS to the Company, shall in no
way expand the rights or remedies of any third party against the Company (and,
if applicable, such Designated Purchasers) as compared to the rights and
remedies that such third party would have had against AT&T PCS had the Company
(and, if applicable, such Designated Purchasers) not assumed the Assumed
Liabilities. Without limiting the generality of the preceding sentence, the
assumption by the Company (and, if applicable, such Designated Purchasers) of
the Assumed Liabilities shall not create any third-party beneficiary rights.

     II.6  Payment of Certain Expenses. At the Closing, the Company agrees,
           ---------------------------
to pay, and save AT&T PCS harmless against, the reasonable fees and
disbursements of AT&T PCS's counsel in connection with (i) the preparation,
negotiation, execution and delivery of this Agreement, the instruments and
documents executed pursuant hereto or in connection herewith, and (ii) the
consummation of the Transactions, including, without limitation, all legal fees
and related expenses incurred in connection with the preparation and filing of
applications on Form 490 with the FCC necessary to effect the License.

     II.7  Allocation of Purchase Price. On or prior to the Closing Date, the
           ----------------------------
Company and AT&T PCS shall mutually agree upon the allocation of the Purchase
Price among the Purchased Assets. The parties agree that such allocation shall
be made based upon the relative fair market values of the Purchased Assets as of
the Closing Date. In the absence of mutual agreement within such period, the
parties shall submit promptly the determination of such allocation to the
Independent Accountant who will be engaged by the parties to allocate the
Purchase Price among the Purchased Assets based upon their relative fair market
values as of the Closing Date. The determination of the Independent Accountant
shall be final, binding and conclusive on the parties hereto, and the fees and
expenses of the Independent Accountant shall be borne equally by the parties.
The Company and AT&T PCS agree to file all tax returns and reports, including
Internal Revenue Service Form 8594, in accordance with such allocation and not
to take any position inconsistent therewith unless required to do so pursuant to
a "determination" as such term is defined in Section 1313 of the Code.

                                  ARTICLE III
                                    CLOSING
                                    -------

                                      11
<PAGE>

     III.1  Time and Place of Closing. Upon the terms and subject to the
            -------------------------
conditions hereof, the closing of the Transactions (the "Closing") shall take
                                                         -------
place at the offices of Friedman Kaplan & Seiler LLP, 875 Third Avenue, New
York, New York, at 10:00 a.m. local time on the twelfth Business Day following
the date of receipt of the last Consent required by subsections (a) through (c)
of Section 7.1, or at such other place and/or time and/or on such other date as
the parties may agree or as may be necessary to permit the fulfillment or waiver
of the conditions set forth in Article VII (the "Closing Date"). The Closing
                                                 ------------
shall be deemed to have occurred as of 12:01 a.m. on the Closing Date.

     III.2  Closing Actions and Deliveries. Upon the terms and subject to the
            ------------------------------
satisfaction or waiver by the appropriate party, if applicable, of the
conditions set forth in Article VII, to effect the purchase and sale of the
Purchased Assets and the payment of the Purchase Price in consideration
therefor, the parties shall on the Closing Date take the following actions:

           (a) Assignment of License. AT&T PCS shall execute and deliver to the
               ---------------------
Company one or more instruments of assignment, substantially in the form of
Schedule 3.2(a), sufficient to assign to the Company (or any Designated
Purchasers) the AT&T PCS Sold License (such assignment being herein referred to
as the "License Transfer").
        ----------------

           (b) Assignment of Purchased Assets. AT&T PCS shall execute and
               ------------------------------
deliver to the Company one or more bills of sale or instruments of assignment,
substantially in the form of Schedule 3.2(b), sufficient to assign to the
Company (or any Designated Purchasers) the Purchased Assets.

           (c) Delivery of Cash Purchase Price. The Company shall deliver to
               -------------------------------
AT&T PCS or the 1031 Agent, as the case may be, the Cash Purchase Price and the
Microwave Clearing Reimbursement Payment by wire transfer of immediately
available funds to a bank account specified by AT&T PCS.

           (d) Delivery of Payments In Respect of Employee Payment. The Company
               ---------------------------------------------------
shall deliver to AT&T Puerto Rico the Employee Payment in accordance with
Section 2.4 by wire transfer of immediately available funds.

           (e) Assumption of Obligations. The Company shall execute and deliver
               -------------------------
to AT&T PCS an instrument of assumption, substantially in the form of Schedule
3.2(e), in respect of the obligations to be assumed by the Company pursuant to
Section 2.3.

           (f) Other Deliveries.
               ----------------

               (i) AT&T PCS shall execute and deliver or cause to be executed
and delivered to the Company the following additional documents:

                                      12
<PAGE>

                    (A) original or copies of all Assigned Agreements to the
extent not previously provided to the Company;

                    (B) the opinion of counsel to AT&T PCS, reasonably
satisfactory to the Company, dated the Closing Date, addressed to the Company
(and its lenders, if applicable) and substantially in the form of Schedule
3.2(f)(i)(B);

                    (C) the opinion of Young & Jatlow, dated the Closing Date,
addressed to the Company (and its lenders, if applicable) and substantially in
the form of Schedule 3.2(f)(i)(C);

                    (D) a certificate of an officer of AT&T PCS, dated the
Closing Date, certifying as to the fulfillment of the conditions set forth in
Sections 7.2(a) and 7.2(b) and that all of the conditions precedent to the
obligations of AT&T PCS hereunder have been waived by AT&T PCS or satisfied;

                    (E) a certificate of an officer of AT&T PCS, dated the
Closing Date, certifying as to (I) the resolutions adopted by AT&T PCS duly
authorizing the execution, delivery and performance of this Agreement by AT&T
PCS and the execution and delivery by AT&T PCS of all instruments and documents
contemplated hereby and (II) the signatures of the Persons who have been
authorized to execute and deliver this Agreement on behalf of AT&T PCS and any
other agreement executed or to be executed in connection herewith;

                    (F) a good standing certificate of AT&T PCS from the
Secretary of State of Delaware, dated no earlier than 30 days prior to the
Closing;

                    (G) all Consents set forth on Schedule 5.2;

                    (H) the Search Results, as set forth in Section 4.9,
together with all releases and satisfaction pieces required to release the Liens
on the Purchased Assets shown in the Search Results (other than Liens securing
the Assumed Liabilities);

                    (I) the Related Agreement Amendments executed by AT&T PCS or
its Affiliate, as applicable; and

                    (J) all such other documents and instruments as the Company
or its counsel may reasonably request in order to consummate the Transactions.

               (ii) The Company shall execute and deliver or cause to be
executed and delivered to AT&T PCS the following additional documents:

                                      13
<PAGE>

                    (A) the opinion of McDermott, Will & Emery, dated the
Closing Date, addressed to AT&T PCS and substantially in the form of Schedule
3.2(f)(ii)(A);

                    (B) a certificate of an officer of the Company, dated the
Closing Date, certifying as to the fulfillment of the conditions set forth in
Sections 7.3(a) and 7.3(b) and that all of the conditions precedent to the
obligations of the Company hereunder have been waived by the Company or
satisfied;

                    (C) a certificate of an officer of the Company, dated the
Closing Date, certifying as to (I) the resolutions adopted by the Company duly
authorizing the execution, delivery and performance of this Agreement by the
Company and the execution and delivery by the Company of all instruments and
documents contemplated hereby and (II) the signatures of the Persons who have
been authorized to execute and deliver this Agreement on behalf of the Company
and any other agreement executed or to be executed in connection herewith;

                    (D) good standing certificate of the Company from the
Secretary of State of Delaware, dated no earlier than 30 days prior to the
Closing;

                    (E) the Related Agreement Amendments executed by the parties
thereto (other than AT&T PCS); and

                    (F) all such other documents and instruments as AT&T PCS or
its counsel may reasonably request in order to consummate the Transactions.

     III.3  Closing Costs; Taxes and Fees. The Company shall pay or cause to
            -----------------------------
be paid at the Closing or, if due prior to the Closing or thereafter, promptly
when due: (i) all transfer taxes (including sales taxes, gross receipts taxes,
stamp taxes, and other taxes) payable solely as a result of a transfer of assets
pursuant to this Agreement, but excluding any federal, state, local or other
jurisdictional income taxes (or franchise, excise, gross receipts or other taxes
that are generally imposed on a party on a periodic basis as a result of a
party's status, presence, conduct of business, holding of assets, income,
revenues, activities or other items); and (ii) one fee under the HSR Act
relating to the Transactions hereunder. AT&T PCS shall pay or cause to be paid
at the Closing, or if due prior to the closing or thereafter, promptly when due,
any additional fee under the HSR Act that may be required to consummate the
Transactions.

     III.4  Acquisition Corp. Stockholder Transaction. Simultaneously with
            -----------------------------------------
the Closing, in accordance with the terms and conditions of the Securities
Purchase Agreement, each stockholder of Acquisition Corp. shall sell, transfer
and assign its shares of Acquisition Corp. to TeleCorp Communications, Inc., a
wholly-owned Subsidiary of the Company, in consideration for shares of Capital
Stock (as such term is defined in the Securities Purchase Agreement) of the
Company as set forth in the Securities Purchase Agreement.

                                      14
<PAGE>

                                  ARTICLE IV
                                   COVENANTS
                                   ---------

     IV.1 Consummation of Transactions. Each party shall use all commercially
          ----------------------------
reasonable efforts to take, or cause to be taken, all actions, and to do, or
cause to be done, all things necessary, proper or advisable and consistent with
applicable law to carry out all of their respective obligations under this
Agreement to consummate the Transactions, which efforts shall include the
following:

          (a)  The parties shall use all commercially reasonable efforts to
cause the Closing to occur and the Transactions to be consummated in accordance
with the terms hereof, and, without limiting the generality of the foregoing, to
obtain, subject to Section 4.4(f), all necessary Consents including the approval
of this Agreement and the Transactions by all Governmental Authorities and
agencies and third parties, including the FCC, and to make all filings with and
to give all notices to third parties which may be necessary or reasonably
required in order for the parties to consummate the Transactions; it being
understood and agreed that AT&T PCS shall not be obligated to obtain, or seek to
obtain, the Consents of any third parties to the assignment of the Assigned
Agreements set forth on Schedule 5.2.

          (b)  Each party shall furnish to the other party all information
concerning such party and its Affiliates reasonably required for inclusion in
any application or filing to be made by AT&T PCS or the Company or any other
party in connection with the Transactions or otherwise to comply with applicable
FCC Law.

          (c)  Upon the request of the other party, each party shall forthwith
execute and deliver, or cause to be executed and delivered, such further
instruments of assignment, transfer, conveyance, endorsement, direction or
authorization and other documents as may reasonably be requested by such party
in order to effectuate the purposes of this Agreement.

          (d)  Each party covenants and agrees from and after the execution and
delivery of this Agreement to and including the Closing Date as follows:

               (i)  It is understood that the Closing is subject to prior
approval of the FCC and may be subject to the prior approval of one or more
state regulatory commissions. The parties shall use their best efforts to file
with the FCC and any relevant state agency or agencies, as soon as practicable
following the date hereof and in no event later than ten (10) Business Days from
the date hereof, a joint application requesting the approval of the transfer of
the Purchased Assets to the Company, or its designee. Each of the parties hereto
shall diligently take or cooperate in the taking of all steps which are
necessary or appropriate to expedite the prosecution and favorable consideration
of such applications. The parties covenant and agree to undertake all actions
reasonably requested by the FCC or other regulatory authority and to file such
material as shall be

                                      15
<PAGE>

necessary or required to obtain any necessary waivers or other authority from
the FCC or such state agency or agencies in connection with the foregoing
applications.

               (ii) Within five (5) Business Days of the date of execution
hereof, the parties shall file, or cause to be filed, with the Federal Trade
Commission and the Antitrust Division of the Department of Justice any and all
reports or notifications which are required to be filed under the HSR Act or
other Law.

     IV.2 Confidentiality.
          ---------------

          (a)  Each party shall, and shall cause each of its Affiliates, and its
and their respective shareholders, members, managers, directors, officers,
employees and agents (collectively, "Representatives") to, keep secret and
                                     ---------------
retain in strictest confidence any and all Confidential Information relating to
any other party that it receives in connection with the negotiation or
performance of this Agreement, and shall not disclose such Confidential
Information, and shall cause its Representatives not to disclose such
Confidential Information, to anyone except the receiving party's  Affiliates and
Representatives and any other Person that agrees in writing to keep in
confidence all Confidential Information in accordance with the terms of this
Section 4.2.  Until the Closing, each party agrees to use Confidential
Information received from another party only to pursue such Transactions, but
not for any other purpose.  All tangible embodiments of Confidential Information
furnished pursuant to this Agreement shall be returned promptly to the party to
whom it belongs upon request by such party.

          (b)  The obligations set forth in Section 4.2(a) shall be inoperative
with respect to Confidential Information that (i) is or becomes generally
available to the public other than as a result of disclosure by the receiving
party or its Representatives, (ii) was available to the receiving party on a
non-confidential basis prior to its disclosure to the receiving party, or (iii)
becomes available to the receiving party on a non-confidential basis from a
source other than the providing party or its agents, provided, that such source
is not known by the receiving party to be bound by a confidentiality agreement
with the providing party or the providing party's agents.  In addition, from and
after the Closing the obligations set forth in Section 4.2(a) shall not apply to
the Company with respect to Confidential Information relating to the Purchased
Assets.

          (c)  To the fullest extent permitted by law, if a party or any of its
Affiliates or Representatives breaches, or threatens to commit a breach of, this
Section 4.2, the party whose Confidential Information shall be disclosed, or
threatened to be disclosed, shall have the right and remedy to have this Section
4.2 specifically enforced by any court having jurisdiction, it being
acknowledged and agreed that money damages will not provide an adequate remedy
to such party.  Nothing in this Section 4.2 shall be construed to limit the
right of any party to collect money damages in the event of breach of this
Section 4.2.

                                      16
<PAGE>

          (d)  Anything else in this Agreement notwithstanding, each party shall
have the right to disclose any information, including Confidential Information
of the other party or such other party's Affiliates:  (i) to its Affiliates or
Representatives; (ii) in any filing with any regulatory agency, court, or other
authority or any disclosure to a trust of public debt of a party to the extent
that the disclosing party determines in good faith that it is required by law,
regulation or the terms of such debt to do so;  provided, that any such
disclosure shall be as limited in scope as possible and shall be made only after
giving the other party as much notice as practicable of such required disclosure
and an opportunity to contest such disclosure if possible; (iii) as required by
its existing or potential lending sources (such lending sources to acknowledge
that any such Confidential Information disclosed to them is subject to the
provisions hereof); (iv) as required to enforce its rights under this Agreement;
or (v) as required to obtain the Consents specified in Sections 7.1(a) through
(c).

     IV.3 Covenants of AT&T PCS. From and after the execution and delivery of
          ---------------------
this Agreement to and including the Closing Date, AT&T PCS shall:

          (a)  Comply with all applicable Laws relating to the PCS License and
the Purchased Assets or their use except to the extent that such failure to
comply would not have an AT&T PCS Material Adverse Effect or a material adverse
effect on the Transactions;

          (b)  Use its reasonable best efforts to maintain the PCS License in
full force and effect;

          (c)  Without the Company's prior written consent, such consent not to
be unreasonably withheld, delayed or conditioned, not (i) sell, transfer, assign
or dispose of, or offer to, or enter into any agreement, arrangement or
understanding to, sell, transfer, assign or dispose of any of the Purchased
Assets or any interest therein, or negotiate therefor, or (ii) create, incur or
suffer to exist any Lien of any nature whatsoever relating to any of the
Purchased Assets or any interest therein (other than Liens securing the Assumed
Liabilities or Liens which will be terminated and released  prior to Closing);

          (d)  Deliver to the Company copies of all environmental assessment
reports, if any, it has in its possession covering any real property that is
leased pursuant to an Assigned Agreement;

          (e)  Give written notice to the Company promptly upon the commencement
of, or upon obtaining knowledge of any facts that would give rise to a threat
of, any claim, action or proceeding commenced against or relating to (other than
proceedings affecting the PCS or wireless communications services industry
generally) the Purchased Assets or their use, and which would reasonably be
expected to have an AT&T PCS Material Adverse Effect or a material adverse
effect on the Transactions;

                                      17
<PAGE>

          (f) Promptly after obtaining knowledge of the occurrence of, or the
impending or threatened occurrence of, any event which would cause or constitute
a material breach of any of its warranties, representations, covenants or
agreements contained in this Agreement, or which would reasonably be expected to
have an AT&T PCS Material Adverse Effect or a material adverse effect on the
Transactions, give notice in writing of such event or occurrence or impending or
threatened event or occurrence (provided, that such disclosure shall not be
deemed to cure any violation or breach of any such representation, warranty,
covenant, agreement or provision), to the Company and use commercially
reasonable efforts to prevent or to promptly remedy such breach;

          (g) Cause the Company to be advised promptly in writing of (i) any
event, condition or state of facts known to it, which has had or would
reasonably be expected to have an AT&T PCS Material Adverse Effect or a material
adverse effect on the Transactions, or materially adversely affect the Purchased
Assets (taken as a whole) or their use (other than proceedings affecting the PCS
or wireless communications services industry generally), (ii) any claim, action
or proceeding which seeks to enjoin the consummation of the Transactions, and
(iii) any event, occurrence, transaction or other item that would have been
required to have been disclosed on any Exhibit or Schedule delivered hereunder,
had such event, occurrence, transaction or item existed on the date hereof;

          (h) Use commercially reasonable efforts to preserve its relationships
with all parties to the Assigned Agreements and to perform in all material
respects all of its payment obligations under the Assigned Agreements according
to the terms and conditions thereof; and

          (i) Not fail to pay when due any liability or obligations that, if
unpaid, would become a Lien upon any of the Purchased Assets.

     IV.4 Covenants of the Company.  From and after the execution and
          ------------------------
delivery of this Agreement to and including the Closing Date, the Company shall:

          (a) Comply with all applicable Laws, including all such Laws relating
to the PCS License and the Purchased Assets or their use except to the extent
that such failure to comply would not have a Company Material Adverse Effect or
a material adverse effect on the Transactions;

          (b) Comply with the terms of the Stockholders' Agreement;

          (c) Give written notice to AT&T PCS promptly upon the commencement of,
or upon obtaining knowledge of any facts that would give rise to a threat of,
any claim, action or proceeding commenced against or relating to (other than
proceedings affecting the PCS or wireless communications services industry
generally) it, its properties or assets, and which would reasonably be expected
to have a Company Material Adverse Effect or a material adverse effect on the
Transactions;

                                      18
<PAGE>

          (d) Promptly after obtaining knowledge of the occurrence of, or the
impending or threatened occurrence of, any event which would cause or constitute
a material breach of any of its warranties, representations, covenants or
agreements contained in this Agreement or which would reasonably be expected to
have a Company Material Adverse Effect or a material adverse effect on the
Transactions, give notice in writing of such event or occurrence or impending or
threatened event or occurrence (provided, that such disclosure shall not be
deemed to cure any violation or breach of any such representation, warranty,
covenant, agreement or provision), to AT&T PCS and use commercially reasonable
efforts to prevent or to promptly remedy such breach;

          (e) Cause AT&T PCS to be advised promptly in writing of (i) any event,
condition or state of facts known to it, which has had or would reasonably be
expected to have a Company Material Adverse Effect or a material adverse effect
on the Transactions (other than proceedings affecting the PCS or wireless
communications services industry generally) and (ii) any claim, action or
proceeding which seeks to enjoin the consummation of the Transactions; and

          (f) Be responsible for obtaining, and shall use its commercially
reasonable best efforts (which shall  not include an obligation on the part of
the Company to expend any material cash amount) to obtain, the Consents of any
third parties to the assignment of the Assigned Agreements set forth on Schedule
5.2.

     IV.5 Employees.  Without limiting any rights of AT&T PCS pursuant to
          ---------
Section 2.4, all expenses covered under any medical, dental, vision,
prescription drug, disability, travel accident, accidental death and
dismemberment, and life insurance plans of the Company and which are incurred by
Employees and their dependents after the Termination Date, including any
expenses attributable to facts or conditions existing on or before the
Termination Date, are the responsibility of the Company and shall be paid
directly by the Company or its insurance carrier to such  Employees and
dependents.  The Company shall be responsible for any medical, dental or life
insurance coverage under the terms of the Company's plans (if any) due to any
Continuing Employees and their dependents who retire after the Termination Date.
The Company shall fulfill the obligations under continuation coverage rules of
the Consolidation Omnibus Budget Reconciliation Act (COBRA) with respect to a
"qualifying event" within the meaning of Section 4980B(f) of the Code or Section
603 of the Employee Retirement Income Security Act of 1974, as amended,
occurring after the Termination Date with respect to any  Employees and their
dependents.  All short-term, long-term and extended disability benefits under
the terms of the Company's plans (if any) payable to Employees and their
dependents who become disabled after the Termination Date shall be the
responsibility of the Company and shall be paid directly by the Company or its
insurance carrier to such Employees and their dependents.

     IV.6 Assignment of Assigned Agreements and AT&T PCS Sold License. To the
          -----------------------------------------------------------
extent that any of the Assigned Agreements being assigned pursuant hereto is not
assignable without the consent of another Person and such Consent has not been
obtained by the Company as contemplated by Section 4.4(f) on or prior to the
Closing Date, this Agreement shall not constitute an assignment

                                      19
<PAGE>

or attempted assignment of such Assigned Agreement if such assignment or
attempted assignment would constitute a breach thereof. AT&T PCS agrees, at the
request of the Company, to assist the Company in obtaining (i) the Consent of
such other Person to an assignment of an Assigned Agreement in all cases in
which such Consent is required or (ii) novation agreements to Assigned
Agreements not so assignable. If such Consent or novation is not obtained, AT&T
PCS agrees to cooperate with the Company to provide for the Company, to the
extent permitted under the terms of such Assigned Agreement, the benefits under
such Assigned Agreement, including enforcement of any and all rights of AT&T PCS
against the other Person that is a party thereto arising out of the cancellation
by such other Person or otherwise.

     IV.7  FCC Construction Requirement. The Company and AT&T PCS hereby agree
           ----------------------------
that the Company shall assume and be obligated to satisfy the construction
requirements set forth in 47 C.F.R. 24.203 with respect to the AT&T PCS Retained
License and the AT&T PCS Sold License.

     IV.8  Non-Solicitation.
           ----------------

           (a) From the date hereof until the Closing Date, AT&T PCS (and any of
AT&T PCS's officers, directors, partners, employees, representatives or agents)
will not solicit, initiate, encourage or participate in negotiations in any
manner with respect to, or furnish or cause or permit to be furnished any
information to any Person (other than to the Company or the Company's
representatives) in connection with, any inquiry or offer for any purchase or
sale of any of the Purchased Assets (collectively, a "Third-Party Proposal").
                                                      --------------------
During such period, AT&T PCS shall promptly inform the Company of the occurrence
of a Third-Party Proposal and the terms thereof (including the identity of the
prospective soliciting party).

           (b) If AT&T PCS (or any of AT&T PCS's officers, directors, partners,
employees, representatives or agents) breaches or threatens to commit a breach
of any of the provisions of this section, the Company shall have the right (in
addition to any other rights and remedies available to the Company at law or in
equity) to equitable relief (including injunctions) against such breach or
threatened breach, it being acknowledged and agreed that any such breach or
threatened breach will cause irreparable harm to the Company and that money
damages would not be an adequate remedy to the Company.  AT&T PCS agrees that it
will not seek, and hereby waives any requirement for, the securing or posting of
a bond or proving actual damages in connection with the Company's seeking or
obtaining such relief.

     IV.9  Lien Searches.  AT&T PCS shall deliver to the Company chattel
           -------------
mortgage search reports issued by all applicable jurisdictions with respect to
the Purchased Assets (the "Search Results") dated no earlier than seventy (70)
                           --------------
days prior to the Closing Date.  If the Search Results reveal that any Liens on
the Purchased Assets exist, AT&T PCS shall use commercially reasonable efforts
to have such Liens removed as of the Closing.

                                      20
<PAGE>

     IV.10  Environmental Due Diligence.  The Company shall have conducted an
            ---------------------------
environmental due diligence investigation of the Purchased Assets, the results
of which investigation shall be reasonably satisfactory to the Company, it being
understood that such investigation shall include:  (i) reviewing all Phase I
environmental assessments prepared prior to the date hereof on behalf of AT&T
PCS for the parcels of real property subject to leases included in the Assigned
Agreements; and (ii) conducting and reviewing Phase I environmental assessments
for parcels of real property subject to leases included  in the Assigned
Agreements for which such assessments have not been performed prior to the date
hereof.  In the event the Company is not reasonably satisfied with the results
of its environmental due diligence investigation with respect to any such
parcel, the Company shall provide AT&T PCS with written notice of such
dissatisfaction no later than 30 days after the date hereof, which written
notice shall set forth in reasonable detail the parcels as to which the Company
is not reasonably satisfied and the reasons therefor (the "Potentially Rejected
                                                           --------------------
Sites").  In the event there are five (5) or fewer Potentially Rejected Sites,
- -----
the Closing shall take place in accordance with the terms hereof with no
reduction in the Purchase Price, and (i) with respect to each Potentially
Registered Site the Company shall have the right at the Company's sole cost and
expense to deinstall and remove all Purchased Assets located at any Potentially
Rejected Site and (ii) any Assigned Agreements relating to a Potentially
Rejected Site as to which such right shall be exercised shall be excluded from
the Purchased Assets and shall not be assigned to the Company pursuant to
Section 2.1(b) and the liabilities arising thereunder shall not be Assumed
Liabilities pursuant to Section 2.3(a).  The Company shall exercise such right
by written notice thereof given at least ten (10) Business Days prior to the
Closing Date.  In the event there are more than five (5) Potentially Rejected
Sites, the Company may elect by written notice provided  to AT&T PCS  no later
than 30 days after the date hereof to terminate this Agreement in accordance
with Article IX; provided, however, that such 30 day period may be extended by
                 --------  -------
the Company, by written notice given to AT&T PCS, for such period not to exceed
30 days, as shall be necessary to investigate any potential environmental
liability relating to any Potentially Rejected Site.  In the event that the
Company elects to deinstall and remove any Purchased Assets located at any
Potentially Rejected Site in accordance with this Section 4.10, and this
Agreement shall thereafter be terminated without the Closing having occurred,
the Company shall at its sole cost and expense reinstall and restore all
Purchased Assets to their prior locations.  Notwithstanding anything to the
contrary contained herein, AT&T PCS shall not be deemed to be in breach of any
representation or warranty contained in this Agreement, or have any
indemnification obligation relating thereto, in respect of any matter of which
the Company acquires knowledge during the course of its environmental due
diligence investigation of the Purchased Assets.  As used in this Section 4.10,
the term "knowledge" refers to actual and not constructive knowledge of the
Company.


                                   ARTICLE V
                  REPRESENTATIONS AND WARRANTIES OF AT&T PCS
                  ------------------------------------------

          AT&T PCS represents and warrants to the Company as follows:

                                      21
<PAGE>

     V.1  Organization, Power and Authority.
          ---------------------------------

          (a) It is a corporation duly organized, validly existing and in good
standing under the laws of Delaware and has the requisite power and authority to
own, lease and operate the Purchased Assets and to carry on its business as now
being conducted.

          (b) It has the requisite power and authority to execute, deliver and
perform this Agreement and each other instrument, document, certificate and
agreement required or contemplated to be executed, delivered and performed by it
hereunder and thereunder to which it is or will be a party.

          (c) It is duly qualified to do business in each jurisdiction where the
Purchased Assets are used or the nature of its activities makes such
qualification necessary other than any such jurisdiction in which the failure to
be so qualified would not have an AT&T PCS Material Adverse Effect or a material
adverse effect on the Transactions.

          (d) The execution and delivery of this Agreement by it and the
consummation of the Transactions by it have been duly and validly authorized by
its Board of Directors and no other proceedings on its part which have not been
taken (including approval of its stockholders) are necessary to authorize this
Agreement or to consummate the Transactions.

          (e) This Agreement has been duly executed and delivered by it and
constitutes its valid and binding obligation, enforceable against it in
accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar laws affecting or relating
to enforcement of creditors' rights generally or may be subject to general
principles of equity.

     V.2  Consents; No Conflicts.  Neither the execution, delivery and
          ----------------------
performance by it of this Agreement nor the consummation of the Transactions
will (a) conflict with, or result in a breach or violation of, any provision of
its organizational documents; (b) subject to obtaining Consents set forth on
Schedule 5.2, constitute, with or without the giving of notice or passage of
time or both, a breach, violation or default, create a Lien on any of the
Purchased Assets, or give rise to any right of termination, modification,
cancellation, prepayment or acceleration, under (i) any Law or the PCS License
or (ii) any note, bond, mortgage, indenture, lease, agreement or other
instrument, in each case which is applicable to or binding upon it or any of its
assets or (c) require any Consent, other than those set forth on Schedule 5.2,
except where such breach, violation, default, Lien or right would not have an
AT&T PCS Material Adverse Effect or a material adverse effect on the
Transactions.  To its knowledge, there is no fact relating to it or its
Affiliates that would be reasonably expected to prevent it from consummating the
Transactions or disqualify the Company from obtaining the Consents (including
the Consent of the FCC) required in order to consummate the License Transfer as
provided for in this Agreement.  Notwithstanding anything to the contrary
contained herein, AT&T PCS makes no representation or warranty as to any
Consents that may be

                                      22
<PAGE>

required pursuant to the terms of the Assigned Agreements and has relied solely
upon the advice of the Company in connection with the preparation of the portion
of Schedule 5.2 relating to any such Consents required pursuant to the terms of
the Assigned Agreements.

     V.3  Litigation.  There is no action, proceeding or investigation pending
          ----------
or, to its knowledge, threatened against it or any of its properties or assets
that would be reasonably expected to have a material adverse effect on its
ability to consummate the Transactions or to fulfill its obligations under this
Agreement, or which seeks to prevent or challenge the Transactions.

     V.4  FCC Compliance.  To its knowledge, it is in compliance with all
          --------------
eligibility rules issued by the FCC to hold broadband PCS Licenses, including
FCC rules on foreign ownership and the CMRS spectrum cap.

     V.5  Brokers.  It has not employed any broker, finder or investment
          -------
banker and has not incurred and will not incur any liability for any brokerage
fees, commissions or finder's fees in connection with the Transactions.

     V.6  Stockholders' Agreement.  From and after July 17, 1998, through and
          -----------------------
including the date hereof, AT&T PCS has performed all covenants and agreements
required to be performed by it pursuant to the Stockholders' Agreement.

     V.7  License.  It is the authorized legal holder, free and clear of any
          -------
Liens, of the PCS License, evidence of which is attached to Schedule I.  The PCS
License is, and on the Closing Date the AT&T PCS Sold License will be, valid and
in full force and effect.  Except for proceedings affecting the PCS or wireless
communications services industry generally, there is not pending, nor to the
knowledge of AT&T PCS, threatened against AT&T PCS or against the PCS License,
any application, action, petition, objection or other pleading, or any
proceeding with the FCC which questions or contests the validity of, or seeks
the revocation, nonrenewal or suspension of, the PCS License, which seeks the
imposition of any modification or amendment with respect thereto, or which
adversely affects the ability of the Company to employ the AT&T PCS Sold License
in its business after the Closing Date.  The PCS License is not subject to any
conditions other than those appearing on the face of the PCS License itself and
those imposed by FCC Law.

     V.8  Title to Purchased Assets.  AT&T PCS has good and marketable title
          -------------------------
to, or a valid and enforceable leasehold interest in, all of the Purchased
Assets (other than the AT&T PCS Sold License), free and clear of all Liens
except for Liens for taxes, assessments, governmental charges or levies which
are not due and delinquent or which hereafter can be paid without penalty, and
except for warehousemen's, mechanics', carriers', landlords', repairmen's, or
other similar Liens arising in the ordinary course of business (none of which,
either singly or in the aggregate, would create an AT&T Material Adverse Effect
or a material adverse effect on the Transactions).

     V.9  Assigned Agreements.
          -------------------

                                      23
<PAGE>

           (a) AT&T PCS has made all payments required to be paid by it under
all Assigned Agreements through and including the date hereof. AT&T PCS has
complied in all material respects with all of its obligations under the Assigned
Agreements in connection with the construction by AT&T PCS of the cell sites
identified on Schedule 2.1(b).

           (b) Each of the Assigned Agreements has been lawfully entered into
and is or will be valid and in full force and effect and is or will be
enforceable in accordance with its terms for the period stated in such Assigned
Agreement. As of the date hereof, AT&T PCS has not received written notice from
any party to any Assigned Agreement threatening cancellation of, or asserting
the existence of, any outstanding disputes or material defaults under, any
Assigned Agreement. AT&T PCS will not modify, amend or waive any provisions of
any Assigned Agreement in a manner that would materially adversely affect the
Purchased Assets or terminate any Assigned Agreement prior to the Closing other
than in the ordinary course of business and with the prior written consent of
the Company, which consent will not be unreasonably withheld.

     V.10  Environmental Matters.  There has been no manufacture, refining,
           ---------------------
storage, disposal or treatment of Hazardous Substances by AT&T PCS, or to AT&T
PCS' knowledge, by any of its predecessors, at or from any real property that is
leased pursuant to an Assigned Agreement, in violation of any Environmental Laws
or which would require remedial action under any Environmental Law.  During its
occupancy of such real property, AT&T PCS has not received with respect to any
such real property any (i) notice of any such violation with respect to any
Hazardous Substance at or on any of such real property, (ii) notice from any
governmental agency that it, or any present or former owner, lessee or operator
of such real property is a potentially responsible party for cleanup liability
with respect to the emission, discharge or release of any Hazardous Substance or
for any other matter arising under the Environmental Laws or in any litigation,
administrative proceeding, finding, order, citation, notice, investigation or
complaint under any Environmental Law, or (iii) notice of violation, citation,
complaint, request for information, order, directive, compliance schedule,
notice of claim, proceeding or litigation from any party concerning the
compliance of AT&T PCS with any Environmental Law.  As used in this Section
5.10, the term "knowledge" refers to actual and not constructive knowledge and
is not intended to impose upon AT&T PCS any duty to investigate the condition of
any real property.

     V.11  Compliance With Laws.  With respect to the Purchased Assets, AT&T
           --------------------
PCS is in, and has operated in, compliance with all applicable Laws, including
all FCC Laws, Environmental Laws and Laws relating to taxes, except for
noncompliance that, individually or in the aggregate, has not and would not
reasonably be expected to have an AT&T PCS Material Adverse Effect.  AT&T PCS
has not received notice to the effect that, or otherwise been advised that, it
is not in compliance with any Laws with respect to the System or the Purchased
Assets, and AT&T PCS has not taken any action or failed to take any action that
is a violation of any such Laws with respect to the System or the Purchased
Assets, except for actions or failures to take action that, individually or in
the

                                      24
<PAGE>

aggregate, have not and would not reasonably be expected to have an AT&T PCS
Material Adverse Effect or a material adverse effect on the Transactions.

     V.12  Employees; Employee Benefits
           ----------------------------

           (a) AT&T Puerto Rico and each of its Affiliates is in material
compliance with all United States and Puerto Rico laws and regulations with
respect to employment, employment practices, or the terms and conditions of
employment, wages and hours for the Employees through the Termination Date.

           (b) Each Employee Plan and Benefit Arrangement has been maintained in
all material respects in compliance with its terms and with the requirements
prescribed by and all applicable statutes, orders, rules and regulations under
United States and Puerto Rico law, including but not limited to ERISA and the
Code, through the Termination Date.


                                  ARTICLE VI
                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY
                 ---------------------------------------------


           The Company represents and warrants to AT&T PCS as follows:

     VI.1  Organization, Power and Authority.
           ---------------------------------

           (a) Each of the Company and each of its Subsidiaries that is a
corporation is duly organized, validly existing and in good standing under the
laws of its jurisdiction of incorporation and has the requisite corporate power
and authority to own, lease and operate its properties and to carry on its
business as now being conducted and as proposed to be conducted.  Each of its
Subsidiaries that is a limited liability company or a limited partnership is a
limited liability company or a limited partnership, as the case may be, duly
formed, validly existing and in good standing under the laws of the jurisdiction
of  formation and has the requisite limited liability company or limited
partnership, as the case may be, power and authority to own, lease and conduct
its properties and to carry on the business as new being conducted and as
proposed to be conducted.

           (b) It has the requisite power and authority to execute, deliver and
perform this Agreement, and each other instrument, document, certificate and
agreement required or contemplated to be executed, delivered and performed by it
hereunder and thereunder to which it is or will be a party.

           (c) Each of the Company and each of its Subsidiaries is duly
qualified to do business in each jurisdiction where the character of its
properties owned or held under lease or the nature of its activities makes such
qualification necessary other than any such jurisdiction in which

                                      25
<PAGE>

the failure to be so qualified would not have a Company Material Adverse Effect
or a material adverse effect on the Transactions.

           (d) The execution and delivery of this Agreement by the Company and
the consummation of the Transactions by it have been duly and validly authorized
by its Board of Directors and no other proceedings on its part which have not
been taken (including approval of its shareholders) are necessary to authorize
this Agreement or to consummate the Transactions.

           (e) This Agreement has been duly executed and delivered by the
Company and constitutes its valid and binding obligation, enforceable against it
in accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar Laws affecting or relating
to enforcement of creditors' rights generally or may be subject to general
principles of equity.

           (f) As of the Closing, after giving effect to the Transactions, the
Company is not in breach of any obligation under this Agreement or the
Stockholders' Agreement.

     VI.2  Consents; No Conflicts.  Neither the execution, delivery and
           ----------------------
performance by the Company of this Agreement nor the consummation of the
Transactions will (a) conflict with, or result in a breach or violation of, any
provision of its organizational documents; (b) subject to obtaining the Consents
set forth on Schedule 6.2, constitute, with or without the giving of notice or
passage of time or both, a breach, violation or default, create a Lien on its
assets, or give rise to any right of termination, modification, cancellation,
prepayment or acceleration, under (i) any Law or License, or (ii) any note,
bond, mortgage, indenture, lease, agreement or other instrument, in each case
which is applicable to or binding upon it or any of its assets; or (c) require
any Consent other than those set forth on Schedule 6.2, or the approval of the
Company's Board of Directors or its stockholders (which approvals have been
obtained), except where such breach, violation, default, Lien or right would not
have a Company Material Adverse Effect or a material adverse effect on the
Transactions.  To its knowledge, there is no fact relating to it or its
Affiliates that would be reasonably expected to prevent it from consummating the
Transactions or performing its obligations under this Agreement or disqualify
the Company from obtaining the Consents (including the Consent of the FCC)
required in order to consummate the License Transfer as provided for in this
Agreement.

     VI.3  Litigation.  There is no action, proceeding or investigation
           ----------
pending or, to the Company's knowledge, threatened against it or any of its
properties or assets that would have a material adverse effect on its ability to
consummate the Transactions or to fulfill its obligations under this Agreement,
or to operate its business after the Closing Date, or which seeks to prevent or
challenge the Transactions.  There is no judgment, decree, injunction, rule or
order outstanding against the Company which would limit in any material respect
its ability to operate its business in the manner currently contemplated.

                                      26
<PAGE>

     VI.4  FCC Compliance.  It complies, and after giving effect to the
           --------------
consummation of the Transactions will comply, with all eligibility rules issued
by the FCC to hold broadband PCS Licenses, including FCC rules on foreign
ownership and the CMRS spectrum cap.

     VI.5  Brokers.  The Company has not employed any broker, finder or
           -------
investment banker and has not incurred and will not incur any liability for any
brokerage fees, commissions or finder's fees in connection with the
Transactions, except for Chase Securities Inc., whose fee of Two Million
($2,000,000) Dollars will be paid by the Company at the Closing.

     VI.6  Stockholders' Agreement.  From and after July 17, 1998, through
           -----------------------
and including the date hereof, the Stockholders' Agreement has been in full
force and effect and the Company has performed all covenants and agreements
required to be performed by it pursuant to the Stockholders' Agreement.

     VI.7  No Additional Representations.  The Company is not relying on and
           -----------------------------
acknowledges that no representation or warranty is being made by AT&T PCS or any
of its officers, employees, Affiliates, agents or representatives, except for
representations and warranties expressly set forth in this Agreement and, in
particular, it is not relying on, and acknowledges that no representation or
warranty is being made in respect of, (i) any projections, estimates or budgets
delivered to or made available to them of future revenues, expenses or
expenditures, or future results of operations of the Purchased Assets and (ii)
any other information or documents delivered or made available to it or its
representatives, except for representations and warranties expressly set forth
in this Agreement (including the Schedules attached hereto).

     VI.8  Compliance With Laws.  The Company is in, and has operated in,
           --------------------
compliance with all applicable Laws, except for noncompliance that, individually
or in the aggregate, has not and would not reasonably be expected to have a
Company Material Adverse Effect.  The Company has not received notice to the
effect that, or otherwise been advised that, it is not in compliance with any
Laws, and the Company has not taken any action or failed to take any action that
is a violation of any such Laws, except for actions or failures to take action
that, individually or in the aggregate, have not and would not reasonably be
expected to have a Company Material Adverse Effect or a material adverse effect
on the Transactions.

     VI.9  No Material Adverse Effect.  Since the formation of the Company,
           --------------------------
there has been no Company Material Adverse Effect.

     VI.10 Capitalization.  (a)  As of the Closing Date, after giving effect
           --------------
to the Transactions there will be issued and outstanding the shares of Preferred
Stock and Common Stock set forth on Schedule 6.10(a).  The record and beneficial
owners of such outstanding shares of Common Stock and Preferred Stock, as of the
Closing Date, after giving effect to the Transactions, are set forth on Schedule
6.10(a).

                                      27
<PAGE>

           (b) Except as set forth on Schedule 6.10(b), on the Closing Date,
after giving effect to the Transactions, there will not be any existing options,
warrants, calls, subscriptions, or other rights, or other agreements or
commitments, obligating the Company to issue, transfer or sell any shares of
capital stock of the Company, except the Preferred Stock and the Common Stock
(other than the Voting Preference Stock).

     VI.11 Employees.
           ---------

           (a) On December 31, 1998 (the "Termination Date"), the Company hired
                                         ----------------
each of the Employees set forth in Schedule 6.11 on terms consistent with the
Company's standard policies.  The Company has given each Employee comparable
employment to that such Employee had with AT&T Puerto Rico, whereby the
Employee's duties and responsibilities have not been significantly reduced, the
Employee's base pay has not been reduced, and the Employee has not been
transferred to a new facility located more than 50 miles from such Employee's
former AT&T Puerto Rico work site.

          (b)  Effective January 1, 1999, the Company caused all Employees and
their dependents to be eligible to participate in a group health plan and waived
any minimum eligibility period of employment for coverage and any preexisting
condition requirement and provided credit towards the payment of any deductible
for any Employees and their dependents with respect to such plan.

                                  ARTICLE VII
                              CLOSING CONDITIONS
                              ------------------

     VII.1 Conditions to Obligations of All Parties.  The obligation of each
           ----------------------------------------
of the parties to consummate the Transactions contemplated to occur at the
Closing shall be conditioned on the following, unless waived by each of the
parties at or prior to Closing:

           (a) Any applicable waiting period under the HSR Act shall have
expired or been terminated.

           (b) The Consent of the FCC to the License Transfer shall have been
obtained pursuant to a Final Order, free of any conditions materially adverse to
the Company or AT&T PCS, other than those applicable to the PCS or wireless
communications services industry generally.  For the purposes of this paragraph,
"Final Order" means an action or decision that has been granted by the FCC as to
 -----------
which (i) no request for a stay or similar request is pending, no stay is in
effect, the action or decision has not been vacated, reversed, set aside,
annulled or suspended and any deadline for filing such request that may be
designated by statute or regulation has passed, (ii) no petition for rehearing
or reconsideration or application for review is pending and the time for the
filing of any such petition or application has passed, (iii) the FCC does not
have the action or decision under

                                      28
<PAGE>

reconsideration on its own motion and the time within which it may effect such
reconsideration has passed and (iv) no appeal is pending, including other
administrative or judicial review, or in effect and any deadline for filing any
such appeal that may be designated by statute or rule
has passed.

            (c)  All Consents by any Governmental Authority (other than the
Consents referred to in paragraphs (a) and (b) above) required to permit the
consummation of the Transactions shall have been obtained, except where the
failure to obtain such Consents would not be reasonably expected to have an AT&T
PCS Material Adverse Effect or a Company Material Adverse Effect or to
materially adversely affect the Transactions or the ability of AT&T PCS or the
Company to perform its obligations under this Agreement.

            (d)  The Consent of the lenders under the Company's credit facility
dated as of July 17, 1998 shall have been obtained.

            (e)  No preliminary or permanent injunction or other order, decree
or ruling issued by a Governmental Authority, nor any statute, rule, regulation
or executive order promulgated or enacted by any Governmental Authority, shall
be in effect that would (i) impose material limitations on the ability of any
party to consummate the Transactions or prohibit such consummation, or (ii)
impair in any material respect the operations of the Company.

            (f)  The closing under the Securities Purchase Agreement shall occur
prior to, or contemporaneously with, the Closing.

     VII.2  Conditions to Obligations of the Company.  The obligation of the
            ----------------------------------------
Company to consummate the Transactions contemplated to occur at the Closing
shall be further conditioned upon the satisfaction or fulfillment, at or prior
to the Closing, of the following conditions unless waived by the Company, at or
prior to Closing:

            (a)  The representations and warranties of AT&T PCS contained herein
shall be true and correct in all material respects, in each case when made and
at and as of the Closing (except (i) for representations made as of a specified
date, which shall be true and correct as of such date, and (ii)  for
representations and warranties that are qualified as to materiality which shall
be true and correct in all respects) with the same force and effect as though
made at and as of such time, except  (x) for inaccuracies in respect of the
representations and warranties set forth in Section 5.3 and the  third sentence
of Section 5.7 (disregarding any qualifications as to materiality contained
therein) that in the aggregate would not be reasonably expected to have an AT&T
PCS Material Adverse Effect or would not adversely affect AT&T PCS's ability to
perform its obligations under this Agreement and (y) for inaccuracies in respect
of the representations and warranties set forth in Sections 5.3, 5.10, 5.11,
5.12, 5.13 and 5.14 to the extent that such inaccuracies were caused by acts or
omissions by the Company or its agents.

                                      29
<PAGE>

          (b)  AT&T PCS shall have performed in all material respects all
agreements contained herein required to be performed by it at or before the
Closing.

          (c)  AT&T PCS shall have delivered to the Company the documents
required pursuant to Section 3.2(f)(i).

          (d)  Releases, duly executed by the appropriate parties (other than
with respect to Assumed Liabilities), releasing each of the Liens upon the
Purchased Assets, each in form and substance reasonably satisfactory to the
Company, shall have been obtained.

     VII.3  Conditions to the Obligations of AT&T PCS.  The obligation of AT&T
            -----------------------------------------
PCS to consummate the Transactions contemplated to occur at the Closing shall be
further conditioned upon the satisfaction or fulfillment, at or prior to the
Closing, of the following conditions, unless waived by AT&T PCS, at or prior to
Closing:

          (a)  The representations and warranties of the Company contained
herein shall be true and correct in all material respects, in each case when
made and at and as of the Closing (except for representations and warranties
made as of a specified date, which shall be true and correct as of such date and
except for representations and warranties that are qualified as to materiality
which shall be true and correct in all respects) with the same force and effect
as though made at and as of such time, except for inaccuracies in respect of the
representations and warranties set forth in Section 6.3 (disregarding any
qualifications as to materiality contained therein) that in the aggregate would
not be reasonably expected to have a Company Material Adverse Effect or would
not adversely affect the Company's ability to perform its obligations under this
Agreement.

          (b)  The Company shall have performed in all material respects all
agreements contained herein required to be performed by it at or before the
Closing.

          (c)  Concurrently with the consummation of the Transactions, the
transactions contemplated by the Alternative Arrangement Term Sheet shall have
been consummated on terms and conditions reasonably satisfactory to AT&T PCS.

          (d)  The Company shall have delivered to AT&T PCS the documents
required pursuant to Section 3.2(f)(ii).


                                 ARTICLE VIII
                         SURVIVAL AND INDEMNIFICATION
                         ----------------------------

     VIII.1  Survival.  Except for the representations and warranties
             --------
contained in Sections 5.1(a), (b), (d) and (e), and 6.1(a), (b), (d) and (e)
(which shall survive the Closing, without regard to any investigation made by
any of the parties hereto, until the expiration of the applicable statute of

                                      30
<PAGE>

limitations relating thereto), the representations and warranties made in this
Agreement shall survive the Closing without regard to any investigation made by
any of the parties hereto until the second anniversary thereof and shall
thereupon expire together with any right to indemnification in respect thereof
(except to the extent a written notice asserting a claim for breach of any such
representation or warranty and describing such claim in reasonable detail shall
have been given prior to the expiration of the applicable survival period to the
party which made such representation or warranty).  The covenants and agreements
contained herein to be performed or complied with prior to the Closing shall
expire at the Closing.  The covenants and agreements contained in this Agreement
to be performed or complied with after the Closing shall survive the Closing;
provided, that the right to indemnification pursuant to this Article VIII in
respect of a breach of a representation or warranty shall expire upon the
application of the applicable survival period (except to the extent written
notice asserting a claim thereunder and describing such claim in reasonable
detail shall have been given prior to such expiration to the party from whom
such indemnification is sought).  After the Closing, the sole and exclusive
remedy of the parties for any breach or inaccuracy of any representation or
warranty contained in this Agreement, or any other claim (whether or not
alleging a breach of this Agreement) that arises out of the facts and
circumstances constituting such breach or inaccuracy, shall be the indemnity
provided in this Article VIII.

     VIII.2  Indemnification by AT&T PCS.  AT&T PCS shall indemnify and hold
             ---------------------------
harmless the Company and its Affiliates, and the directors, shareholders,
members, managers, officers, employees, agents and/or the legal representatives
of any of them (each, a "Section 8.2 Indemnified Party"), against all
                         -----------------------------
liabilities and expenses incurred by any Section 8.2 Indemnified Party
(including amounts paid in satisfaction of judgments, in compromise, as fines
and penalties, and as counsel fees) (collectively, "Losses") and Losses incurred
                                                    ------
in connection with the investigation, defense, or disposition of any action,
suit or other proceeding in which any Section 8.2 Indemnified Party may be
involved or with which any Section 8.2 Indemnified Party may be threatened
(whether arising out of or relating to matters asserted by third parties against
a Section 8.2 Indemnified Party or incurred or sustained by such party in the
absence of a third-party claim), that arise out of or result from (a) any
representation or warranty of AT&T PCS contained in this Agreement being untrue,
(b) (i) any act or omission of AT&T Puerto Rico relating to any Employee's
employment by AT&T Puerto Rico on or prior to the Termination Date, and (ii) any
salary, benefits or other obligations due and owing to the Employees and
relating to periods on or prior to the Termination Date, or (c) any default by
AT&T PCS or any of its Affiliates in the performance of their respective
obligations under this Agreement (including its obligation to discharge the
Excluded Liabilities), except for untruths in respect of the representations and
warranties set forth in Sections 5.3, 5.8, 5.9, 5.10 , 5.11 and 5.12 to the
extent that such untruths were caused by acts or omissions by the Company or its
agents or to the extent (but only to the extent) any such Losses arise out of or
result from the gross negligence or willful misconduct of such Section 8.2
Indemnified Party or its Affiliates; provided, that the aggregate liability of
AT&T PCS to indemnify Section 8.2 Indemnified Parties against Losses arising out
of or resulting from (x) any such representation or warranty of AT&T PCS
contained in this Agreement and included in this indemnification by AT&T PCS
being untrue, or (y) default by AT&T PCS or any of its Affiliates in the
performance of their respective obligations

                                      31
<PAGE>

under this Agreement shall (except, in the case of clause (y), to the extent
(but only to the extent) any such Losses arise out of or result from the gross
negligence or willful misconduct of AT&T PCS) be limited to $30,000,000;
provided further, that such $30,000,000 limitation shall not apply to the
obligation of AT&T PCS to indemnify the Section 8.2 Indemnified Parties against
Losses arising out of the Excluded Liabilities. AT&T PCS shall have the option
of satisfying any such Losses incurred by the Company (in its capacity as a
Section 8.2 Indemnified Party) by tendering to the Company shares of Series A
Preferred Stock (such shares to be valued for such purposes at the aggregate
liquidation preference thereof).

     VIII.3  Indemnification by the Company.  The Company shall indemnify and
             ------------------------------
hold harmless AT&T PCS and its Affiliates, and the directors, shareholders,
members, managers, officers, employees, agents and/or the legal representatives
of any of them (each, a "Section 8.3 Indemnified Party"), against all Losses
                         -----------------------------
incurred by any Section 8.3 Indemnified Party (including, without limitation,
amounts paid in satisfaction of judgments, in compromise, as fines and
penalties, and as counsel fees) and Losses incurred in connection with the
investigation, defense, or disposition of any action, suit or other proceeding
in which any Section 8.3 Indemnified Party may be involved or with which any
Section 8.3 Indemnified Party may be threatened (whether arising out of or
relating to matters asserted by third parties against a Section 8.3 Indemnified
Party or incurred or sustained by such party in the absence of a third party
claim) that arise out of or result from (a) any representation or warranty of
the Company contained in this Agreement being untrue, (b) (i) any act or
omission of the Company relating to any Employee's employment by the Company
after the Termination Date, (ii) any salary, benefits or other obligations due
and owing to the Employees and relating to periods after the Termination Date,
(iii) the performance of services by any Employee for any period after January
23, 1998 (other than services performed by any Employee at the direction of AT&T
PCS  (disregarding for such purpose the fact that the Employees were, at AT&T
PCS's direction, performing services on behalf of the Company from and after
January 23, 1998 through the Termination Date)), and (iv) and the Employee
Payment set forth in Section 2.4, (c) any default by the Company or any of its
Affiliates in the performance of their respective obligations under this
Agreement (including its obligation to discharge the Assumed Liabilities), or
(d) any act or omission by the Company prior to or subsequent to the Closing
Date in connection with the development, construction, management, improvement
or operation by the Company of the PCS system in the Puerto Rico MTA, including,
without limitation, any such Losses incurred or sustained by a Section 8.3
Indemnified Party that arise out of or relate to an act or omission by the
Company prior to or subsequent to the Closing Date in connection with any
Assigned Agreement or any other Purchased Asset, except to the extent (but only
to the extent) any such Losses arise out of or result from the gross negligence
or willful misconduct of such Section 8.3 Indemnified Party or its Affiliates;
provided, that the aggregate liability of the Company to indemnify Section 8.3
Indemnified Parties against Losses arising out of or resulting from (x) any
representation or warranty of the Company contained in this Agreement being
untrue, or (y) any default by the Company or any of its Affiliates in the
performance of their respective obligations under this Agreement shall (except,
in the case of clause (y), to the extent (but only to the extent) any such
Losses arise out of or result from the gross negligence or willful misconduct of
the Company) be limited to $30,000,000; provided further, that

                                      32
<PAGE>

such $30,000,000 limitation shall not apply to (A) any claim pursuant to Section
8.3(b), or (B) the obligation of the Company to pay the Purchase Price, the
Microwave Clearing Reimbursement Payment or the Employee Payment or to indemnify
the Section 8.3 Indemnified Parties against Losses arising out of the Assumed
Liabilities.

     VIII.4  Procedures.
             ----------

          (a) The terms of this Section 8.4 shall apply to any claim (a "Claim")
                                                                         -----
for indemnification under the terms of Sections 8.2 or 8.3.  The Section 8.2
Indemnified Party or Section 8.3 Indemnified Party (each, an "Indemnified
                                                              -----------
Party"), as the case may be, shall give prompt written notice of such Claim to
- -----
the indemnifying party (the "Indemnifying Party") under the applicable Section,
                             ------------------
which party may assume the defense thereof, provided, that any delay or failure
to so notify the Indemnifying Party shall relieve the Indemnifying Party of its
obligations hereunder only to the extent, if at all, that it is materially
prejudiced by reason of such delay or failure.  The Indemnified Party shall have
the right to approve any counsel selected by the Indemnifying Party and to
approve the terms of any proposed settlement, such approvals not to be
unreasonably delayed or withheld (unless, in the case of approval of a proposed
settlement, such settlement provides only, as to the Indemnified Party, the
payment of money damages actually paid by the Indemnifying Party and a complete
release of the Indemnified Party in respect of the claim in question).
Notwithstanding any of the foregoing to the contrary, the provisions of this
Article VIII shall not be construed so as to provide for the indemnification of
any Indemnified Party for any liability to the extent (but only to the extent)
that such indemnification would be in violation of applicable law or that such
liability may not be waived, modified or limited under applicable law, but shall
be construed so as to effectuate the provisions of this Article VIII to the
fullest extent permitted by law.

          (b)  In the event that the Indemnifying Party undertakes the defense
of any Claim, the Indemnifying Party will keep the Indemnified Party advised as
to all material developments in connection with such Claim, including promptly
furnishing the Indemnified Party with copies of all material documents filed or
served in connection therewith.

          (c)  In the event that the Indemnifying Party fails to assume the
defense of any Claim within ten (10) business days after receiving written
notice thereof, the Indemnified Party shall have the right, subject to the
Indemnifying Party's right to assume the defense pursuant to the provisions of
this Article VIII, to undertake the defense, compromise or settlement of such
Claim for the account of the Indemnifying Party.  Unless and until the
Indemnified Party assumes the defense of any Claim, the Indemnifying Party shall
advance to the Indemnified Party any of its reasonable attorneys' fees and other
costs and expenses incurred in connection with the defense of any such action or
proceeding.  Each Indemnified Party shall agree in writing prior to any such
advancement that, in the event he or it receives any such advance, such
Indemnified Party shall reimburse the Indemnifying Party for such fees, costs
and expenses to the extent that it shall be determined that he or it was not
entitled to indemnification under this Article VIII.

                                      33
<PAGE>

          (d)  In no event shall an Indemnifying Party be required to pay in
connection with any Claim for more than one firm of counsel (and local counsel)
for each of the following groups of Indemnified Parties:  (i) AT&T PCS, its
Affiliates, and the shareholders, members, managers, officers, employees, agents
and/or the legal representatives of any of them; and (ii) the Company and its
Affiliates, and the shareholders, members, managers, officers, employees, agents
and/or the legal representatives of any of them.


                                 ARTICLE IX
                                 TERMINATION
                                 -----------

     IX.1  Termination.  In addition to any other rights of termination set
           -----------
forth herein, this Agreement may be terminated, and the Transactions abandoned,
without further obligation of any party, except as set forth herein, at any time
prior to the Closing Date:

          (a)  by mutual written consent of the parties;

          (b)  by any party by written notice to the other party, if the Closing
shall not have occurred on or before the date that is ten (10) months after the
date hereof, provided, that the party electing to exercise such right is not
otherwise in breach of its obligations under this Agreement;

          (c)  by any party by written notice to the other party, if the
consummation of the Transactions shall be prohibited by a final, non-appealable
order, decree or injunction of a court of competent jurisdiction; or

          (d)  by the Company in accordance with Section 4.10.

     IX.2  Effect of Termination
           ---------------------

          (a)  In the event of a termination of this Agreement, no party hereto
shall have any liability or further obligation to any other party to this
Agreement, except as set forth in paragraph (b) below, and except that nothing
herein will relieve any party from liability for any breach by such party of
this Agreement.

          (b)  In the event of a termination of this Agreement pursuant to
Section 9.1, all provisions of this Agreement shall terminate, except Section
4.2 and Articles VIII and X, except that nothing herein will relieve any party
from liability for any breach of this Agreement.

          (c)  Whether or not the Closing occurs, all costs and expenses
incurred in connection with this Agreement and the Transactions shall be paid by
the party incurring such expenses, except as otherwise provided in Section 2.6.

                                      34
<PAGE>

                                   ARTICLE X
                           MISCELLANEOUS PROVISIONS
                           ------------------------

     X.1  Amendment and Modification.  This Agreement may be amended, modified
          --------------------------
or supplemented only by written agreement of each of the parties.

     X.2  Waiver of Compliance; Consents.  Any failure of any of the parties
          ------------------------------
to comply with any obligation, covenant, agreement or condition herein may be
waived by the party or parties entitled to the benefits thereof only by a
written instrument signed by the party granting such waiver, but such waiver or
failure to insist upon strict compliance with such obligation, covenant,
agreement or condition shall not operate as a waiver of, or estoppel with
respect to, any subsequent or other failure.  Whenever this Agreement requires
or permits consent by or on behalf of any party hereto, such consent shall be
given in writing in a manner consistent with the requirement for a waiver of
compliance as set forth in this Section 10.2.

     X.3  Notices.  All notices or other communications hereunder shall be in
          -------
writing and shall be given (and shall be deemed to have been duly given upon
receipt) by delivery in person against receipt, by facsimile transmission with
confirmation of receipt, or by registered or certified mail (return receipt
requested), postage prepaid, with an acknowledgment of receipt signed by the
addressee or an authorized representative thereof, addressed as follows (or to
such other address for a party as shall be specified by like notice; provided,
that notice of a change of address shall be effective only upon receipt
thereof):

          If to AT&T PCS, to it at:

          c/o AT&T Wireless Services, Inc.
          7277 164th Avenue Northeast
          Redmond, WA 98052
          Attn:  William H. Hague, Esq.
          Facsimile:  (425) 580-8405

          With a copy to:

          Friedman Kaplan & Seiler LLP
          875 Third Avenue
          New York, NY 10022
          Attn:  Gregg S. Lerner, Esq.
          Facsimile: (212) 355-6401

          If to the Company, to it at:

                                      35
<PAGE>

          TeleCorp PCS, Inc.
          1010 N. Glebe Road, Suite 800
          Arlington, Virginia  22201
          Attn:  General Counsel
          Facsimile:  (703) 236-1106

     X.4  Designated Purchasers.  It is understood and agreed between the
          ---------------------
parties that the Company may cause one or more of its direct or indirect wholly
owned Subsidiaries (each a "Designated Purchaser") to purchase all or part of
                            --------------------
the Purchased Assets hereunder; provided, that notwithstanding any such
designation, the Company shall remain fully liable for all of its obligations
and those of the Designated Purchaser hereunder.

     X.5  Parties in Interest; Assignment.  This Agreement is binding upon and
          -------------------------------
is solely for the benefit of the parties hereto and their respective permitted
successors, legal representatives and permitted assigns.  Neither party may
assign its rights and obligations hereunder without the prior written consent of
the other party.

     X.6  Applicable Law.  This Agreement shall be governed by and construed
          --------------
in accordance with the laws of the State of New York without giving effect to
the conflicts of law principles thereof.  The parties hereto hereby irrevocably
and unconditionally consent to submit to the non-exclusive jurisdiction of the
courts of the State of New York and of the United States of America located in
the County of New York, New York (the "New York Courts") for any litigation
                                       ---------------
arising out of or relating to this Agreement and the Transactions, waive any
objection to the laying of venue of any such litigation in the New York Courts
and agrees not to plead or claim in any New York Court that such litigation
brought therein has been brought in an inconvenient forum.

     X.7  Counterparts.  This Agreement may be executed in two or more
          ------------
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.  Facsimile signatures on
this Agreement shall be deemed to be original signatures for all purposes.

     X.8  Interpretation.  The article and section headings contained in this
          --------------
Agreement are for convenience of reference only, are not part of the agreement
of the parties and shall not affect in any way the meaning or interpretation of
this Agreement.

     X.9  Entire Agreement.  This Agreement, including the Schedules hereto
          ----------------
and the certificates and instruments delivered pursuant to the terms of this
Agreement, embody the entire agreement and understanding of the parties hereto
in respect of the Transactions.  There are no restrictions, promises,
representations, warranties, covenants or undertakings, other than those
expressly set forth or referred to herein or in the Stockholders' Agreement.
This Agreement supersedes all prior agreements and understandings between the
parties with respect to the Transactions.

                                      36
<PAGE>

     X.10  Publicity.  So long as this Agreement is in effect, the parties
           ---------
agree to consult with each other in issuing any press release or otherwise
making any public statement with respect to the Transactions, and no party shall
issue any press release or make any such public statement prior to such
consultation, except as may be required by Law.  No press release or other
public statement by a party shall disclose any of the financial terms of the
Transactions without the prior consent of the other party, except as may be
required by Law.  A breach of the provisions of this Section 10.10 by a party
shall not give rise to any right to terminate this Agreement.

     X.11  Specific Performance.  The parties hereto agree that irreparable
           --------------------
damage would occur in the event that any of the provisions of this Agreement
were not performed in accordance with their specific terms or were otherwise
breached.  It is accordingly agreed that the parties shall be entitled to an
injunction or injunctions to prevent breaches of this Agreement and to enforce
specifically the terms and provisions hereof in any New York Courts.

     X.12  Remedies Cumulative.  All rights, powers and remedies provided
           -------------------
under this Agreement or otherwise available in respect hereof at law or in
equity shall be cumulative and not alternative, and the exercise or beginning of
the exercise of any thereof by any party shall not preclude the simultaneous or
later exercise of any other such right, power or remedy by such party.

     X.13  Severability.  Any provision of this Agreement that is prohibited
           ------------
or unenforceable in any jurisdiction shall, as to such jurisdiction, be
ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.  If any court determines
that any covenant or any part of any covenant is invalid or unenforceable, such
covenant shall be enforced to the extent permitted by such court, and all other
covenants shall not thereby be affected and shall be given full effect, without
regard to the invalid portions.

     X.14  Beneficiaries of Agreement.  The representations, warranties,
           --------------------------
covenants and agreements expressed in this Agreement are for the sole benefit of
the other parties hereto and the Section 8.2 Indemnified Parties and Section 8.3
Indemnified Parties and are not intended to benefit, and may not be relied upon
or enforced by, any other party as a third party beneficiary or otherwise.
Without limiting the foregoing, nothing contained in this Agreement shall confer
upon any Employee any right with respect to continued employment by AT&T PCS or
the Company.

     X.15  Waiver of Purchase Right Pursuant to Securities Purchase Agreement.
           ------------------------------------------------------------------
Subject to the consummation of the Transactions, AT&T PCS hereby waives, on
behalf of itself and TWR Cellular, Inc., any "Purchase Right" it may have
pursuant to the Stockholders Agreement in respect of any securities being issued
by the Company pursuant to the Securities Purchase Agreement.

                                      37
<PAGE>

     X.16  Alternative Arrangement Term Sheet.  Exhibit II sets forth the
           ----------------------------------
Alternative Arrangement Term Sheet.  The parties hereby agree to the terms and
conditions thereof.

     X.17  Certain Payments.  Notwithstanding anything to the contrary
           ----------------
contained herein, AT&T PCS hereby agrees that, so long as  each of the Company,
each Cash Equity Investor (as such term is defined in the Securities Purchase
Agreement) and each Management Stockholder (as such term is defined in the
Securities Purchase Agreement) shall have performed all of their respective
obligations under this Agreement and the Securities Purchase Agreement, as the
case may be, if the Closing does not occur (i) due solely to a breach by AT&T
PCS of its obligations under this Agreement, AT&T PCS shall pay to each Cash
Equity Investor and each Management Stockholder its pro rata share of One
Million ($1,000,000) Dollars (based upon their respective ownership interest in
the Company), or (ii) for any reason other than that set forth in clause (i)
hereof, AT&T PCS shall pay to each Cash Equity Investor and each Management
Stockholder its pro rata share of Five Hundred Thousand ($500,000) Dollars
(based upon their respective ownership interest in the Company).

                                      38
<PAGE>

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first above written.

                                        TELECORP PCS, INC.

                                        By: /s/ Thomas Sullivan
                                            -------------------------------
                                             Name: Thomas Sullivan
                                             Title: Executive Vice President


                                        AT&T WIRELESS PCS INC.


                                        By: /s/ W. Hague
                                            -------------------------------
                                             Name: W. Hague
                                             Title: SVP

                                      39
<PAGE>

                                                                      Schedule I

                           United States of America
                       Federal Communications Commission

                          RADIO STATION AUTHORIZATION

                       Commercial Mobile Radio Services
                  Personal Communications Service - Broadband


AT&T WIRELESS PCS INC.                            Call Sign:     KNLF249
1150 Connecticut Avenue, N.W., 4th Floor          Market:        M025
Washington, DC 20036                              PUERTO RICO-U.S. VIRGIN
ISLANDS

                                                  Channel Block: A
                                                  File Number: 00046-CW-L-95

- --------------------------------------------------------------------------------

The licensee hereof is authorized, for the period indicated, to construct and
operate radio transmitting facilities in accordance with the terms and
conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission contained in the Title 47 of the U.S. Code of Federal Regulations.

- --------------------------------------------------------------------------------

Initial Grant Date..............................      June 23, 1995

Five-year Build Out Date........................      June 23, 2000

Expiration Date.................................      June 23, 2005

- --------------------------------------------------------------------------------

CONDITIONS:
- -----------

Pursuant to Section 309(h) of the Communications Act of 1934, as amended (47 U.
S.C. (S) 309(h)), this license is subject to the following conditions: This
license does not vest in the licensee any right to operate a station nor any
right in the use of frequencies beyond the term thereof nor in any other manner
than authorized herein. Neither this license nor the right granted thereunder
shall be assigned or otherwise transferred in violation of the Communications
Act of 1934, as amended (47 U.S.C. (S) 151. et seq.). This license is subject in
terms to the right of use or control conferred by Section 706 of the
Communications Act of 1934, as amended (47 U.S.C. (S) 606).

Conditions continued on Page 2.

- --------------------------------------------------------------------------------
WAIVERS:
- --------

No waivers associated with this authorization.

- --------------------------------------------------------------------------------
Issue Date: June 23, 1995
<PAGE>

FCC Form 463a                                           Page 1 of 2
KNLF                             AT&T WIRELESS PCS INC.      00046-CW-L-95


CONDITIONS:

     This authorization is subject to the condition that, in the event that
systems using the same frequencies as granted herein are authorized in an
adjacent foreign territory (Canada/United States), future coordination of any
base station transmitters within 72 km (45 miles) of the United States/Canada
border shall be required to eliminate any harmful interference to operations in
the adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

     This authorization is subject to the condition that the remaining balance
of the winning bid amount will be paid in accordance with Part I of the
Commission's rules, 47 C.F.R. Part 1.

- --------------------------------------------------------------------------------
Issue Date: June 23, 1995                                 Page 2 of 2
FCC Form 463a
<PAGE>

                                                                     Schedule II

                       AT&T WIRELESS/VENTO AND SULLIVAN

                            F Block Joint Ventures

                          Summary of Principal Terms
                          --------------------------

General
- -------

Parties        AT&T Wireless Services, Inc. and/or one or more affiliates
               ("AT&T"), each of the entities (each, a "License Entity") that
               owns one or more of the F Block licenses referred to below,
               Thomas Sullivan and Gerald Vento (the "Management Group"),
               TeleCorp PCS, Inc. ("TeleCorp"), the TeleCorp Cash Equity
               Investors (the "TeleCorp Investors"), and the non-Management
               Group equity holders in the License Entities (the "Non-Management
               Equity Holders").

Structure      Each of the Houston, San Diego, Melbourne - Titusville, Orlando
               and Tampa - St. Petersburg - Clearwater F Block licenses (each,
               an "F Block License") are held by a separate entity (each, a
               "License Entity" and collectively the "License Entities"). Each
               of the five entities will be independent of each other, but will
               have substantially identical ownership and governance, as set
               forth below.

Acquisition of San Diego License and Non-Management Equity Holders'
- -------------------------------------------------------------------
Interests/Puerto Rico Transaction
- ---------------------------------

AT&T Loan      AT&T makes a loan (the "AT&T Loan") to the Management Group in an
               amount equal to 100% of the cash required to pay the purchase
               price of the San Diego F Block License, plus the aggregate amount
               of legal fees and other expenses (approximately $225,000)
               TeleCorp incurred directly related to such acquisition. The
               Management Group will secure the AT&T Loan with a pledge of all
               of the capital stock of the San Diego License Entity.
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

Capitalization
of the San Diego
License Entity    Concurrently with the consummation of the AT&T Loan, the
                  Management Group will contribute to the capital of the San
                  Diego License Entity all the proceeds of such loan.

Use of AT&T
Loan Proceeds     Concurrently with the capitalization of the San Diego License
                  Entity, the San Diego License Entity will use the Management
                  Group capital contribution to pay the purchase price of the
                  San Diego F Block License and related expenses.

Exchange of Note
for Interests     Concurrently with the closing of the acquisition by TeleCorp
                  of AT&T's PCS license covering Puerto Rico, TeleCorp will
                  acquire 100% of the Non-Management Equity Holders' equity
                  interests in the License Entities (the "Non-Management Equity
                  Interests") in exchange for TeleCorp promissory notes in the
                  aggregate principal amount, in the case of each of the F Block
                  Licenses, set forth on Schedule A, or approximately $26
                  million in the aggregate (the "Non-Management Equity Interests
                  Purchase Price"). The TeleCorp notes will be of the same tenor
                  as those being issued to AT&T in partial consideration for
                  AT&T's Puerto Rico PCS license.

TeleCorp Notes    The principal terms of the TeleCorp notes are:

                  -- Initial interest rate, equivalent to Lucent Series C, 12%
                  per annum
                  -- Hold period: October 31, 1999
                  -- Interest rate after hold period: 7%
                  -- Convert (if the holder is AT&T, to Series A Preferred, or
                  Series D and F Preferred, at AT&T's option, or if the holder
                  is an Investor, to Series C Preferred and Series A Common) at
                  a price of 20% premium to par or $1,200/unit
                  -- Senior to Lucent Series C on maturity, redemption priority
                  and repayment
                  -- Mandatory repayment or conversion on qualifying IPO or high
                  yield offering
                  -- Other terms equivalent to Lucent Series C, except
                  conversion rights are forfeited on transfer

                                      10
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

Sale of Interests
to License Entity   Concurrently with the exchange referred to in the "Exchange
                    of Notes for Interests" section, TeleCorp will assign to
                    each License Entity (other than San Diego License Entity)
                    the applicable Non-Management Equity Interests (i.e., the
                    interests TeleCorp has acquired in the Houston License
                    Entity will be assigned to Houston License Entity, etc.). In
                    consideration therefor, each License Entity (other than San
                    Diego License Entity) will issue to TeleCorp promissory
                    notes (the "JV Notes"), on terms reasonably acceptable to
                    AT&T, in the aggregate principal amount, in the case of each
                    License Entity, set forth on Schedule A, or approximately
                    $26 million in the aggregate.

Puerto Rico
Consideration       As a portion of the consideration payable by TeleCorp to
                    AT&T for the Puerto Rico license, TeleCorp will deliver to
                    AT&T the JV Notes.

Timing              The closing of the AT&T Loan and the Management Group
                    capital contribution to the San Diego License Entity will
                    occur concurrently with the acquisition of the San Diego F
                    Block License by the San Diego License Entity, and is not
                    conditioned on the consummation of the Puerto Rico
                    acquisition and the transactions described herein (but see
                    "Alternative Arrangement" below). The closing of the Puerto
                    Rico acquisition and the exchanges described above involving
                    the Non-Management Equity Interests, the TeleCorp notes and
                    the JV Notes will all occur concurrently with the closing of
                    the joint venture contributions described in this term
                    sheet.

Alternative
Arrangements        Anything in this Term Sheet to the contrary notwithstanding,
                    at any time on or before the closing of the Puerto Rico
                    transaction, AT&T shall have the right to restructure the
                    Transactions by (a) canceling the transactions set forth in
                    "Exchange of Notes for Interests" and "Sale of Interests to
                    License Entity," and (b) revising the "Puerto Rico
                    Consideration" by eliminating the JV Notes, and increasing
                    the amount of the TeleCorp Notes to $36 million.

                                      11
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

                    In the event that the Puerto Rico transaction is not
                    restructured as set forth in the immediately preceding
                    paragraph and fails to close, (a) AT&T will lend to the
                    License Entities an amount equal to the Non-Management
                    Equity Interests Purchase Price in exchange for the JV
                    notes, (b) the License Entities will acquire for cash, and
                    the Non-Management Equity Holders will sell to the License
                    Entities, the Non-Management Equity Interests.

License Entity Capitalization and Management Structure
- ------------------------------------------------------

Capitalization      There will be two classes of interests in the License
                    Entities: voting (which have no economic rights) and non-
                    voting (which represent all of the economic interests in the
                    License Entities) The Management Group shall have 75% of the
                    voting interests and 51% of the non-voting interests of each
                    License Entity, and AT&T shall have 25% of the voting
                    interests, and 49% of the non-voting interests of each
                    License Entity.

Board               AT&T will have the right to designate two directors, and
                    each member of the Management Group will be a director. The
                    Management Group (or its successor) will have the right to
                    designate one additional director, provided such third
                    director is independent of the Management Group and
                    reasonably acceptable to AT&T. The initial members of the
                    Board will be mutually agreed upon.

Voting Rights       A list of significant matters will require an 80%
                    supermajority approval by the Board of License Entity (this
                    list will include, but not be limited to, all matters for
                    which TeleCorp requires a supermajority approval).

Management Fee      In consideration of their services, the Management Group
                    will be paid an annual fee equal to $150,000 (prorated for
                    any partial year) in the aggregate for all License Entities
                    (irrespective of the number of License Entities, and to be
                    divided among the License Entities in a mutually acceptable
                    manner).

                                      12
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

Replacement of
Management
Group               In the event that agreed upon performance benchmarks or
                    other objective requirements are not satisfied (such
                    benchmarks and or requirements to be reasonably acceptable
                    to AT&T), the Management Group will be required to assign to
                    substitute control group, reasonably acceptable to a
                    majority of the License Entity directors (excluding the
                    members of the Management Group), all of the Management
                    Group's voting interests. In the event of replacement, the
                    Management Group will, at AT&T's option, either retain its
                    non-voting stock, transfer that stock to its replacement for
                    either cash in an amount equal to the then current value of
                    its put (discussed below) and/or an instrument with the same
                    economic features as the put (so that the Management Group's
                    return will not be worsened as the result of such transfer).

AT&T Assistance     AT&T agrees to, at the request of the Board, negotiate in
                    good faith a management agreement pursuant to which AT&T
                    would build and manage a system that satisfied the
                    applicable FCC license requirements.

Funding             At the request of the Board, AT&T agrees to fund, on terms
                    acceptable to it, the operating expenses of the License
                    Entity (including without limitation the Management Put, the
                    build out costs described in the immediately preceding
                    paragraph, the management fees, and the interest on the FCC
                    debt).

AT&T Liquidity      Anything to the contrary in the AT&T Loan notwithstanding,
                    the Management Group agrees that if at any time AT&T
                    requests repayment of the AT&T Loan and/or the JV notes, the
                    Management Group will use its best efforts to take all
                    commercially reasonable steps to raise funds to do so.

                                      13
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

Right of First
Negotiation      In order to induce AT&T to extend the AT&T Loan, and in
                 consideration of the JV Notes and the commitments AT&T has made
                 to the License Entities hereunder, the Management Group hereby
                 agrees with AT&T that it will in good faith negotiate with AT&T
                 a mutually acceptable transaction (an "F Block Transaction")
                 relating to the F Block Licenses, and, until both parties agree
                 in writing that they are no longer interested in entering into
                 an F Block Transaction, the Management group will not enter
                 into an agreement or arrangement with any person or entity
                 relating to any alliance, sale or other transaction involving
                 the F Block PCS Licenses, or solicit, initiate or engage in any
                 discussion with respect to any such licenses.

Indemnification  Each License Entity will provide customary indemnification for
                 its directors and officers (including the Management Group),
                 including without limitation indemnifying them against director
                 liability arising from AT&T's failure to fund License Entity's
                 capital requirements (provided the Management Group and AT&T
                 agree on acceptable terms for such funding) and AT&T's
                 provision of management services. AT&T will assure performance
                 by License Entity of its indemnification obligations.

Management Put   The Management Group will have the right to put to AT&T its
                 interest in each License Entity for a sum of cash equal to, for
                 each License Entity, the amount set forth on Schedule B ($[4]
                 million in the aggregate), plus 6% per annum (and, during the
                 period, if any, following replacement of the Management Group,
                 10% per annum), compounded annually. The put will be
                 exercisable (in whole but not in part) only during the one-year
                 period following the earliest date that exercise of the put
                 would not violate FCC rules or trigger any penalties (the
                 Management Group shall receive written notice of this date),
                 provided that to the extent permitted by FCC rules without
                 --------
                 triggering any penalty, each member of the Management Group may
                 put $400,000 of its F Block Tracking Interests during the one-
                 year period commencing December 31, 1999 (at AT&T's

                                      14
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

                 option, it may fund the redemption of the Management Group's
                 interest, in lieu of the put).

Transfer
Restrictions     The Management Group may not transfer, pledge or otherwise
                 dispose of all or any portion of its License Entity interests
                 prior to the ninth anniversary of the closing.

                                 *  *  *  *  *

                                      15
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

                                                                      SCHEDULE A


     F Block License      Aggregate Principal Amount of Notes
     --------------------------------------------------------

     Houston

     San Diego*                                 -0-

     Melbourne

     Orlando

     Tampa

     TOTAL                             $[26,000,000]

__________________________
*

     The Non-Management Equity Holders do not hold an equity interest in the
San Diego License Entity.  Accordingly, no San Diego JV Notes will be issued and
the formation of San Diego License Entity is not subject to the consummation of
the other F Block transactions or the Puerto Rico transaction.

                                     16

<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

                                                                      SCHEDULE B


License Entity         Value of Management Group Equity Interest
- ----------------------------------------------------------------

Houston

San Diego

Melbourne

Orlando

Tampa

TOTAL                       [$4,000,000]

                                      17
<PAGE>

                 CONFIDENTIAL -- FOR DISCUSSION PURPOSES ONLY
- --------------------------------------------------------------------------------

                                 Schedule III

                               Filed Separately


                                  Schedule IV

                               Filed Separately


                                  Schedule V

                               Filed Separately

                                      18
<PAGE>

                                                                    Schedule 2.1

               Description of Area and Population to be Assigned

    The Puerto Rico-U.S. Virgin Islands MTA has a population of 3,623,846./1/

     AT&T Wireless PCS Inc. proposes to assign the 20 MHz of A Block broadband
PCS spectrum at 1850-1860 MHz and 1930-1940 MHz to TeleCorp of Puerto Rico, Inc.
throughout the entire Puerto Rico-U.S. Virgin Islands MTA as follows:

<TABLE>
<CAPTION>
================================================================================================
Market Name                               Market Designator              Market Population
================================================================================================
<S>                                       <C>                            <C>
- ------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------
Puerto Rico-U.S. Virgin Islands           M025                           3,623,846
- ------------------------------------------------------------------------------------------------
                                          E
================================================================================================
Total Population                                                         3,623,846
================================================================================================
</TABLE>

________________________
/1/ MTA population figures taken from the April 1, 1990 U.S. Census, U.S.
department of Commerce, Bureau of Census, as published in the Summary of
Licenses To Be Auctioned from the August 2, 1995 C Block Bidder Information
Package.
<PAGE>

               Description of Area and Population to be Retained

    The Puerto Rico-U.S. Virgin Islands MTA has a population of 3,623,846.1

     AT&T Wireless PCS Inc. proposes to retain the 10 MHz of A Block broadband
PCS spectrum at 1860-1865 MHz and 1940-1945 MHz throughout the entire Puerto
Rico-U.S. Virgin Islands MTA as follows:

<TABLE>
<CAPTION>
================================================================================================
Market Name                               Market Designator              Market Population
================================================================================================
<S>                                       <C>                            <C>
- ------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------
Puerto Rico-U.S. Virgin Islands           M025                           3,623,846
- ------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------
Total Population                                                         3,623,846
================================================================================================
</TABLE>

/1/ MTA population figures taken from the April 1, 1990 U.S. Census, U.S.
Department of Commerce, Bureau of Census, as published in the Summary of
Licenses To Be Auctioned from the August 2, 1995 C Block Bidder Information
Package.
<PAGE>

                                SCHEDULE 2.1(b)
                           Agreements to be Assigned

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------
REALTY LEASES
- -------------------------------------------------------------------------------
<S>                   <C>                       <C>
SITE NUMBER           CLUSTER                   SITE NAME
- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------
PMT 001               A - Old San Juan          Trade Center
- -------------------------------------------------------------------------------
PMT 003               A                         Caribe Hilton
- -------------------------------------------------------------------------------
PMT 008               A                         San Alberto Building
- -------------------------------------------------------------------------------
PMT 009               A                         Bogorioin Building
- -------------------------------------------------------------------------------
PMT 010               A                         Topeka - Loiza St.
- -------------------------------------------------------------------------------
PMT 011               A                         Gonzalez Padin
- -------------------------------------------------------------------------------
PMT 012               B                         Ramirez College
- -------------------------------------------------------------------------------
PMT 013               B                         Plaza Las Americas
- -------------------------------------------------------------------------------
PMT 014               B                         Barbosa Building
- -------------------------------------------------------------------------------
PMT 023               B                         El Amal
- -------------------------------------------------------------------------------
PMT 028               B                         Medina Center
- -------------------------------------------------------------------------------
PMT 094               C Puerto Nuevo            El Centro
- -------------------------------------------------------------------------------
PMT 002               C                         Plaza Mercantil
- -------------------------------------------------------------------------------
PMT 004               C                         La Marketin
- -------------------------------------------------------------------------------
PMT 005               C                         Sprint
- -------------------------------------------------------------------------------
PMT 006               C                         Int. Technical College
- -------------------------------------------------------------------------------
PMT 007               C                         La Ceiba
- -------------------------------------------------------------------------------
PMT 021               D-Rio Piedras             Medical Center Plaza
- -------------------------------------------------------------------------------
PMT 024               D                         GM Group
- -------------------------------------------------------------------------------
PMT 026               D                         Alturas del Senorial
- -------------------------------------------------------------------------------
PMT 064               D                         Torre de la Cumbre
- -------------------------------------------------------------------------------
PMT 065               D                         Gasolinera Coqui
- -------------------------------------------------------------------------------
PMT 015               E-Isla Verde              Crowne Plaza
- -------------------------------------------------------------------------------
PMT 033               E                         Tony Tirri
- -------------------------------------------------------------------------------
PMT 035               E                         Monserrate Tower
- -------------------------------------------------------------------------------
</TABLE>
<PAGE>

- -------------------------------------------------------------------------------
PMT 052               E                         Narvaez Cleaners
- -------------------------------------------------------------------------------

                                     -22-
<PAGE>

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
SITE NUMBER           CLUSTER                   SITE NAME
- --------------------------------------------------------------------------------
<S>                   <C>                       <C>
PMT 018               F-Guaynabo                Las Lomas Building
- --------------------------------------------------------------------------------
PMT 020               F                         Hogar Crea - Los Filtros
- --------------------------------------------------------------------------------
PMT 022               F                         Camino Alejandrino
- --------------------------------------------------------------------------------
PMT 061               F                         Jardines de Guaynabo
- --------------------------------------------------------------------------------
PMT 062               F                         Quintas Reales
- --------------------------------------------------------------------------------
PMT 030               G - Trujillo Alto         Berwind Shopping
- --------------------------------------------------------------------------------
PMT 031               G                         De Diego Building
- --------------------------------------------------------------------------------
PMT 032               G                         Efron Hill Mansions
- --------------------------------------------------------------------------------
PMT 036               G                         Loma Santo Domingo
- --------------------------------------------------------------------------------
PMT 037               G                         San Anton Building
- --------------------------------------------------------------------------------
PMT 038               G                         Fabrica de Mattress
- --------------------------------------------------------------------------------
PMT 066               G                         lglesia del Libano
- --------------------------------------------------------------------------------
PMT 017               H - Bayamon               Jardines de Caparra
- --------------------------------------------------------------------------------
PMT 058               H                         FP Centurion
- --------------------------------------------------------------------------------
PMT 059               H                         Madison
- --------------------------------------------------------------------------------
PMT 060               H                         Bayamon Pueblo
- --------------------------------------------------------------------------------
PMT 053               I - Caguas Norte          La Pava
- --------------------------------------------------------------------------------
PMT 068               I                         Finca Moros
- --------------------------------------------------------------------------------
PMT 070               I                         Finca Ocasio 11
- --------------------------------------------------------------------------------
PMT 071               I                         Peaje Caguas
- --------------------------------------------------------------------------------
PMT 047               J - Levittown             Boulevard Levittown
- --------------------------------------------------------------------------------
PMT 048               J                         Club Leones Catano
- --------------------------------------------------------------------------------
PMT 050               J                         Bolera Coqui
- --------------------------------------------------------------------------------
PMT 055               J                         Barrio Pajaros
- --------------------------------------------------------------------------------
PMT 056               J                         AT&T Hato Tejas
- --------------------------------------------------------------------------------
PMT 049               J                         Comunidad Paraiso
- --------------------------------------------------------------------------------
PMT 019               K - Caguas                La Marketa
- --------------------------------------------------------------------------------
PMT 072               K                         Santa Juana Building
- --------------------------------------------------------------------------------
</TABLE>

                                     -23-
<PAGE>

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
SITE NUMBER           CLUSTER                   SITE NAME
- --------------------------------------------------------------------------------
<S>                   <C>                       <C>
PMT 081               K                         Taller Familiar
- --------------------------------------------------------------------------------
PMT 088               K                         Iglesia de Dios
- --------------------------------------------------------------------------------
PMT 089               K                         Mueblelectric Caguas
- --------------------------------------------------------------------------------
PES 041               L - Carolina -Ceiba       Carolina Speedway
- --------------------------------------------------------------------------------
PES 043               L                         Loiza Garaje
- --------------------------------------------------------------------------------
PES 044               L                         Lechonera Landis
- --------------------------------------------------------------------------------
PES 076               L                         PR Aggregate
- --------------------------------------------------------------------------------
PES 045               L                         Marrero Auto
- --------------------------------------------------------------------------------
PES 046               L                         Montana Duran
- --------------------------------------------------------------------------------
PES 117               L                         WZOL -FM Fajardo
- --------------------------------------------------------------------------------
PES 128               L                         Monte Cristiano
- --------------------------------------------------------------------------------
PES 129               L                         El Conquistador
- --------------------------------------------------------------------------------
PMT 054               M - Toa Baja - Dorado     Finca Velez
- --------------------------------------------------------------------------------
PNO 144               M                         Potrero Kuilan
- --------------------------------------------------------------------------------
PNO 161               M                         Efron Dorado
- --------------------------------------------------------------------------------
PNO 145               M                         Espinosa Industrial
- --------------------------------------------------------------------------------
PNO 146               M                         Casa Luis Rodriguez
- --------------------------------------------------------------------------------
PNO 147               M                         Monte Horeb
- --------------------------------------------------------------------------------
PNO 148               M                         Fabrica de Bloques
- --------------------------------------------------------------------------------
PNO 149               M                         La Carreta
- --------------------------------------------------------------------------------
PNO 151               M                         Finca Santiago
- --------------------------------------------------------------------------------
PNO 152               M                         Casa Luis Prieto Manati
- --------------------------------------------------------------------------------
PNO 153               M                         Finca Otero
- --------------------------------------------------------------------------------
PNO 155               M                         Finca Raul Roman
- --------------------------------------------------------------------------------
PNO 156               M                         Casa Hernandez
- --------------------------------------------------------------------------------
PNO 158               M                         Vaqueria Lopez
- --------------------------------------------------------------------------------
PNO 157               M                         Farmacia San Martin
- --------------------------------------------------------------------------------
PNO 160               M                         Terreno Vicente Rios
- --------------------------------------------------------------------------------
</TABLE>

                                     -24-
<PAGE>

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------
SITE NUMBER           CLUSTER                   SITE NAME
- --------------------------------------------------------------------------------------------
<S>                   <C>                       <C>
PNO 164               M                         El Amal
- --------------------------------------------------------------------------------------------
PNO 165               M                         Terreno Ocasio
- --------------------------------------------------------------------------------------------
PSE 082               N - Juncos                Barrio Mamey II
- --------------------------------------------------------------------------------------------
PSE 091               N                         Hogar Crea - Juncos
- --------------------------------------------------------------------------------------------
PSO 127               O                         Granja Barrio Beatriz, Caguas
- --------------------------------------------------------------------------------------------
PSO 040               O                         Pinero III
- --------------------------------------------------------------------------------------------
PSO 029               O                         AT&T Cayey - Earth Station
- --------------------------------------------------------------------------------------------
PSO 095               O                         Centro Comercial Sierra Cayey
- --------------------------------------------------------------------------------------------
PSO 096               O                         Monasterio Cayey, Asso. Autorealizacion
- --------------------------------------------------------------------------------------------
PSO 093               O                         Cercadillo
- --------------------------------------------------------------------------------------------
PSO 092               O                         Finca Pilin
- --------------------------------------------------------------------------------------------
</TABLE>

                                     -25-
<PAGE>

SCHEDULE 5.2


                               AT&T PCS Consents
                               -----------------

     The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:

     (1)  The Federal Communications Commission.

     (2)  The Federal Trade Commission/Department of Justice.

     (3)  Various Governmental Authorities with respect to Franchise Laws.

     (4)  See attached for a list of certain Assigned Agreements as to which
consent of the other party thereto is required.
<PAGE>

                               Required Consents


(i)  Leases

1-   PMT 006 International Technical College. Prior written consent by Landlord
     required.

2-   PMT 012 Ramirez College.  Prior written consent by Landlord required.

3-   PMT 013 Plaza Las Americas. Prior written consent by Landlord required.

4-   PMT 032 Hill Mansions. Prior written consent by Landlord required.

5-   PMT 036 Loma Santo Domingo. Prior written consent by Landlord required.

6-   PMT 059 Madison. Prior written consent by Landlord required.

7-   PMT 065 Gasolinera Coqui. Prior written consent by Landlord required.

8-   PMT 071  Peaje Caguas. Prior written consent by Landlord required.

9-   PMT 081 Taller Familiar. Prior written consent by Landlord required.

10-  PMT 089 Mueblelectric Caguas.  Sixty (60) days prior written consent by
     Landlord required.

11-  PES 129 El Conquistador. Prior written consent by Landlord required.

12-  PNO 153 Finca Otero.  No provision for assignment or subleasing in
     contract.

13-  PNO 161 Efron Dorado. Prior written consent by Landlord required.

14-  PMT 047 Boulevard Levittown.  Prior qualification and consent by Landlord.
<PAGE>

                                 SCHEDULE 6.2

                               Company Consents
                               ----------------


     The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:

     1.   The Federal Communications Commission.

     2.   The Federal Trade Commission/Department of Justice.

     3.   Various Governmental Authorities with respect to Franchise Laws.

     4.   The Lenders under the Company's credit facility dated as of July 17,
          1998.
<PAGE>

                      Outstanding Options, Warrants, etc.
                      -----------------------------------

1.   Upon the closing of the transaction contemplated by the License Acquisition
     Agreement by and between Wireless 2000, Inc. ("Wireless") and the Company,
     dated as of December 2, 1998 (the "Wireless Acquisition Agreement"), the
     Company shall issue to Wireless: (i) five hundred forty-five and 20/100
     (545.20) shares of Series C Preferred Stock, par value $.01 per share
     ("Series C Preferred Stock"), and (ii) five hundred thirty and 40/100
     (530.40) shares of Class A Voting Common Stock, par value $.01 per share
     ("Class A Voting Common Stock"), of the Company.

2.   Upon the closing of the transaction contemplated by the License Acquisition
     Agreement by and between Mercury PCS II, LLC ("Mercury") and the Company,
     dated as of May 15, 1998 (the "Mercury Acquisition Agreement"), the Company
     shall issue to Mercury: (i) two thousand three hundred thirty-two and
     55/100 (2,332.50) shares of Series C Preferred Stock and (ii) two thousand
     two hundred sixty-nine and 23/100 (2,269.23) shares of Class A Voting
     Common Stock of the Company and shall issue additional shares of Series C
     Preferred Stock and Class A Voting Common Stock to certain Cash Equity
     Investors as set forth on Schedule V of the Securities Purchase Agreement
     by and among the Company, AT&T PCS, and certain Cash Equity Investors and
     other parties identified therein, dated as of January 23, 1998, setting
     forth Share Allocation With Supplemental Allocation.

3.   The Company may issue Series E Notes, convertible into Class A Voting
     Common Stock and Series C Preferred Stock of the Company, to certain
     existing shareholders of the Company in connection with the transactions
     set forth in the Summary of Principal Terms attached as Exhibit D to the
     Securities Purchase Agreement.

4.   Upon the closing of the transaction contemplated by the Securities Purchase
     Agreement, the Company will sell to such Cash Equity Investors an aggregate
     of $39,996,600 of its Series C Preferred Stock and Class A Voting Common
     Stock.

5.   Upon the closing of the transaction contemplated by the Stock Purchase
     Agreement with AT&T PCS, and certain Cash Equity Investors identified
     therein, dated as of March 22, 1999, as amended, the Company will sell to
     such Cash Equity Investors and AT&T PCS up to an aggregate amount of
     $30,000,000 of its Series C Preferred Stock and Class A Voting Common
     Stock.

6.   Certain shares of the Company's Preferred Stock are convertible pursuant to
     the terms and conditions set forth in the Company's Restated Certificate.

7.   Upon the closing of the transactions contemplated by the Stock Purchase
     Agreement by and among Cash Equity Investors, Management Stockholders,
     Puerto Rico Acquisition Corp. and TeleCorp PCS, Inc., dated as of March 30,
     1999. The company will sell to such Cash Equity Investors up to an
     aggregate amount of 36,996.60 shares of Series C Preferred Stock and an
     aggregate amount of 39,996.60 shares of Class A Voting
<PAGE>

     Common Stock.
<PAGE>

                                 SCHEDULE 6.11


                       AT&T EMPLOYEES HIRED BY TELECORP


     1.  Carlos Aponte                         RF Systems Engineer
     2.  Margarita Arroyo                      Site Acquisition Specialist
     3.  Lisa Barros                           Site Development Specialist
     4.  Ricardo Claudio                       Director Site Development
     5.  Daphne Domenech                       Administrative Assistant
     6.  Margie Vazquez                        Site Acquisition Manager

<PAGE>

                                                                 EXHIBIT 10.14.1

================================================================================

                      PREFERRED STOCK PURCHASE AGREEMENT

                                by and between

                            AT&T WIRELESS PCS INC.

                                      and

                              TELECORP PCS, INC.

                           Dated as of May 24, 1999

================================================================================
<PAGE>

                               TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                                                       Page
<S>                                                                                                    <C>
ARTICLE I     DEFINITIONS...........................................................................    2

ARTICLE II    PURCHASE PRICE; PURCHASE AND SALE OF SECURITIES; CERTAIN RESTRICTIONS ON TRANSFER.....    5
        2.1.       Investor Purchase Price..........................................................    5
        2.2.       Purchase and Sale of Securities at Closing.......................................    5
        2.3.       Restrictive Legends..............................................................    5
        2.4.       Use of Proceeds..................................................................    6

ARTICLE III   CLOSING...............................................................................    6
        3.1.       Time and Place of Closing........................................................    6
        3.2.       Closing Actions and Deliveries...................................................    6
        3.3.       Closing Costs; Taxes and Fees....................................................    7

ARTICLE IV    REPRESENTATIONS AND WARRANTIES OF INVESTOR............................................    7
        4.1.       Organization, Power and Authority................................................    7
        4.2.       Consents; No Conflicts...........................................................    8
        4.3.       Litigation.......................................................................    8
        4.4.       Brokers..........................................................................    8
        4.5.       No Distribution..................................................................    8
        4.6.       Investor Acknowledgments.........................................................    8

ARTICLE V     REPRESENTATIONS AND WARRANTIES OF THE COMPANY.........................................    9
        5.1.       Organization, Power and Authority................................................    9
        5.2.       Consents; No Conflicts...........................................................   10
        5.3.       Litigation.......................................................................   10
        5.4.       Brokers..........................................................................   11
        5.5.       [Capitalization..................................................................   11
        5.6.       Shares...........................................................................   11
        5.7.       Offering of Securities...........................................................   11

ARTICLE VI    COVENANTS.............................................................................   12
        6.1.       Consummation of Transactions.....................................................   12
        6.2.       Use of Proceeds..................................................................   12
        6.3.       Restated Certificate.............................................................   12
        6.4.       Offering of Securities...........................................................   12
</TABLE>

                                      -2-
<PAGE>

<TABLE>
<S>                                                                                                    <C>
ARTICLE VII   CLOSING CONDITIONS....................................................................   12
        7.1.       Conditions to Obligations of All Parties.........................................   12
        7.2.       Conditions to Obligations of the Company.........................................   13
        7.3.       Conditions to the Obligations of the Investors...................................   14

ARTICLE VIII  SURVIVAL AND INDEMNIFICATION..........................................................   14
        8.1.       Survival.........................................................................   14
        8.2.       Indemnification by the Investor..................................................   15
        8.3.       Indemnification by the Company...................................................   15
        8.4.       Procedures.......................................................................   16
        8.5.       Registration Rights..............................................................   17

ARTICLE IX    TERMINATION...........................................................................  17
        9.1.       Termination......................................................................  17
        9.2.       Effect of Termination............................................................  17

ARTICLE X     MISCELLANEOUS PROVISIONS..............................................................  17
       10.1.       Amendment and Modification.......................................................  17
       10.2.       Waiver of Compliance; Consents...................................................  17
       10.3.       Notices..........................................................................  18
       10.4.       Parties in Interest; Assignment..................................................  18
       10.5.       Applicable Law...................................................................  18
       10.6.       Counterparts.....................................................................  19
       10.7.       Interpretation...................................................................  19
       10.8.       Entire Agreement.................................................................  19
       10.9.       Publicity........................................................................  19
      10.10.       Specific Performance.............................................................  19
      10.11.       Remedies Cumulative..............................................................  19
      10.12.       Severability.....................................................................  19
      10.13.       Beneficiaries of Agreement.......................................................  20
      10.14.       Stock Valuation..................................................................  20
</TABLE>

                                      -3-
<PAGE>

SCHEDULES

Schedule I    --   Capitalization
Schedule 4.2  --   Investor Consents
Schedule 5.2  --   Company Consents
Schedule 5.5       Outstanding Options, Warrants, etc.
Schedule 5.8  --   Subsidiaries of the Company

                                      -4-
<PAGE>

                      PREFERRED STOCK PURCHASE AGREEMENT
                      ----------------------------------

     PREFERRED STOCK PURCHASE AGREEMENT, dated as of May 24, 1999, by and
between AT&T Wireless PCS Inc., a Delaware corporation (the "Investor") and
                                                             --------
TeleCorp PCS, Inc., a Delaware corporation (the "Company").
                                                 -------

                             W I T N E S S E T H :
                             -------------------

          WHEREAS, the Investor is a stockholder of the Company;

          WHEREAS, the Company and certain stockholders of the Company (other
than the Investor) entered into a securities purchase agreement dated as of
March 30, 1999 (the "Cash Equity Securities Purchase Agreement"), pursuant to
which, among other things, such stockholders of the Company agreed to make
additional cash capital contributions to the Company and the Company agreed to
issue additional securities to such stockholders in consideration therefor, all
on the terms set forth in the Cash Equity Securities Purchase Agreement; and

          WHEREAS, the Investor wishes to purchase additional securities of the
Company so that the Investor's equity in the Company is not diluted by the
issuance of securities contemplated by the Cash Equity Securities Purchase
Agreement and the Company wishes to sell additional securities to the Investor
all on the terms and subject to the conditions herein set forth;

          NOW, THEREFORE, in consideration of the promises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the parties agree as follows:

                                   ARTICLE I

                                  DEFINITIONS

          For purposes of this Agreement:

          "Affiliate" means, with respect to any Person, any other Person that
           ---------
directly, or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with that Person.  For purposes of this
definition, "control" (including the terms "controlling" and "controlled") means
             -------                        -----------       ----------
the power to direct or cause the direction of the management and policies of a
Person, directly or indirectly, whether through the ownership of securities or
partnership or other ownership interests, by contract or otherwise.

          "Agreement" means this Preferred Stock Purchase Agreement, as the same
           ---------
may be amended, modified or supplemented in accordance with the terms hereof.

          "Business Day" means any day other than a Saturday, Sunday or a legal
           ------------
holiday in New York, New York or any other day on which commercial banks in New
York, New York are authorized by law or governmental decree to close.
<PAGE>

          "Capital Stock" means any and all shares, interests, participations or
           -------------
other equivalents (however designated) of capital stock of a corporation, and
any and all equivalent ownership interests in a Person (other than a
corporation) and any and all warrants, rights or options to purchase or
subscribe for any of the foregoing or any warrants, rights or options to
purchase or subscribe for any such warrants, rights or options.

          "Cash Equity Securities Purchase Agreement" has the meaning set forth
           -----------------------------------------
in the recitals.

          "Claim" has the meaning set forth in Section 8.4(a).
           -----

          "Closing" has the meaning set forth in Section 3.1.
           -------

          "Closing Date" has the meaning set forth in Section 3.1.
           ------------

          "Common Stock" means, collectively, the Company's Voting Preference
           ------------
Stock,  the Class A Voting Common Stock, the Class B Non-Voting Common Stock,
the Class C Common Stock, and the Class D Common Stock, $0.01 par value per
share, respectively.

          "Company" has the meaning set forth in the preamble.
           -------

          "Confidential Information" means any and all information regarding the
           ------------------------
business, finances, operations, products, services and customers of the Person
specified and its Affiliates, in written or oral form or in any other medium.

          "Consents" means all consents and approvals of Governmental
           --------
Authorities or other third parties necessary to authorize, approve or permit the
parties hereto to consummate the Transactions and for the Company to operate its
business after the Closing Date as currently contemplated.

          "Credit Agreement" means the agreement among the Company, the lenders
           ----------------
and the agents referred to therein, as of July 17, 1998, providing a credit
facility having aggregate commitments of $525 million, as the same may be
amended, modified or supplemented in accordance with the terms thereof.

          "Credit Documents" means the Credit Agreement and all agreements,
           ----------------
instruments and documents executed and delivered pursuant thereto, as the same
may from time to time be amended, modified or supplemented in accordance with
the terms thereof.

          "Governmental Authority" means a Federal, state or local court,
           ----------------------
legislature, governmental agency (including, without limitation, the United
States Department of Justice), commission or regulatory or administrative
authority or instrumentality.

          "Indemnified Party" has the meaning set forth in Section 8.4(a).
           -----------------

                                      -3-
<PAGE>

          "Indemnifying Party" has the meaning set forth in Section 8.4(a).
           ------------------

          "Investor" has the meaning set forth in the preamble.
           --------

          "Law" means applicable common law and any statute, ordinance, code or
           ---
other law, rule, permit, permit condition, regulation, order, decree, technical
or other standard, requirement or procedure enacted, adopted, promulgated,
applied or followed by any Governmental Authority.

          "Lenders" has the meaning set forth in Section 10.4.
           -------

          "License" means a license, permit, certificate of authority, waiver,
           -------
approval, certificate of public convenience and necessity, registration or other
authorization, consent or clearance to construct or operate a facility,
including any emissions, discharges or releases therefrom, or to transact an
activity or business, to construct a tower or to use an asset or process, in
each case issued or granted by a Governmental Authority.

          "Lien" means, with respect to any asset, any mortgage, lien, pledge,
           ----
charge, security interest, right of first refusal or right of others therein, or
encumbrance of any nature whatsoever in respect of such asset.

          "Losses" has the meaning set forth in Section 8.2.
           ------

          "Material Adverse Effect" means a material adverse effect on the
           -----------------------
business, financial condition, assets, liabilities or results of operations or
prospects of the Person specified.

          "New York Courts" has the meaning set forth in Section 10.5.
           ---------------

          "Opinion of Counsel" means, with respect to any Person,  a legal
           ------------------
opinion of such Person's counsel substantially in the form and substance of the
legal opinion rendered on behalf of such Person in connection with the
consummation on July 17, 1998 of the transactions contemplated by the Securities
Purchase Agreement.

          "Person" means an individual, corporation, partnership, limited
           ------
liability company, association, joint stock company, Governmental Authority,
business trust, unincorporated organization, or other legal entity.

          "Preferred Stock" means the shares of the Company's Series A Preferred
           ---------------
Stock, Series B Preferred Stock, Series D Preferred Stock, Series F Preferred
Stock, and Senior Common Stock, $0.01 par value per share, respectively.

          "Purchase Price" shall have the meaning set forth in Section 2.1.
           --------------

                                      -4-
<PAGE>

          "Restated Certificate" means the Third Amended and Restated
           --------------------
Certificate of Incorporation of the Company, dated no later than as of the
Closing Date.

          "Section 8.2 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.2.

          "Section 8.3 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.3.

          "Securities" means the shares of  Preferred Stock being issued
           ----------
hereunder, together with any shares of Preferred Stock or Common Stock issued
upon conversion of or delivered in substitution or exchange for any of the
foregoing.

          "Securities Act" means the Securities Act of 1933, as amended.
           --------------

          "Securities Purchase Agreement" means the Securities Purchase
           -----------------------------
Agreement dated as of January 23, 1998, by and among the Company, AT&T PCS, the
Cash Equity Investors and the other parties named therein.

          "Series A Preferred Stock" has the meaning set forth in Section 2.2.
           ------------------------

          "Series D Preferred Stock" has the meaning set forth in Section 2.2.
           ------------------------

          "Series F Preferred Stock" has the meaning set forth in Section 2.2.
           ------------------------

          "Stockholders' Agreement" means the Stockholders' Agreement, by and
           -----------------------
among the Company, AT&T PCS, the Cash Equity Investors named therein and the
other parties named therein, as stockholders, dated as of July 17, 1999, as
amended by Amendment No. 1 dated as of March 30, 1999.

          "Subsidiary" shall mean, with respect to any Person, a corporation or
           ----------
other entity of which 50% or more of the voting power or the voting equity
securities or equity interest is owned, directly or indirectly, by such Person.

          "Transactions" means the transactions contemplated by this Agreement.
           ------------

          When a reference is made in this Agreement to an Article or a Section,
such reference shall be to an Article or a Section of this Agreement unless
otherwise indicated.  Unless the context otherwise requires, the terms defined
hereunder shall have the meanings therein specified for all purposes of this
Agreement, applicable to both the singular and plural forms of any of the terms
defined herein.  Whenever the words "include," "includes" or "including" are
used in this Agreement, they shall be deemed to be followed by the words
"without limitation."  The use of a gender herein shall be deemed to include the
neuter, masculine and feminine genders whenever necessary or appropriate.
Whenever the word

                                      -5-
<PAGE>

"herein" or "hereof" is used in this Agreement, it shall be deemed to refer to
this Agreement and not to a particular Section of this Agreement unless
expressly stated otherwise.

                                  ARTICLE II

                               PURCHASE AND SALE
                               -----------------
                OF SECURITIES; CERTAIN RESTRICTIONS ON TRANSFER
                -----------------------------------------------

     2.1.  Investor Purchase.  Upon the terms and subject to the conditions
           -----------------
hereof and in reliance upon the representations, warranties and agreements
herein contained, at the Closing, the Investor shall pay Forty Million Dollars
($40,000,000) to the Company (the "Purchase Price") in immediately available
                                   --------------
funds.

     2.2.  Purchase and Sale of Securities at Closing.  Upon the terms and
           ------------------------------------------
subject to the conditions hereof and in reliance upon the representations,
warranties and agreements herein contained, at the Closing, in consideration of
the Purchase Price, the Company shall issue, sell and deliver to the Investor
Thirty Thousand Seven Hundred Fifty and 3/100ths (30,750.03) shares of Series A
Preferred Stock, par value $.01 per share (the "Series A Preferred Stock"), Ten
                                                ------------------------
Thousand Two Hundred Fifty and 1/100ths (10,250.01) shares of Series D Preferred
Stock, par value $0.01 per share (the "Series D Preferred Stock"), and Ten
                                       ------------------------
Thousand (10,000) shares of Series F Preferred Stock, par value $0.01 per share
(the "Series F Preferred Stock").
      ------------------------

     2.3.  Restrictive Legends.  Each certificate representing Securities
           -------------------
(including Securities originally issued hereunder or delivered upon conversion
of the Preferred Stock, or delivered in substitution or exchange for any of the
foregoing) will bear a legend, in addition to any legends required by the
Stockholders' Agreement or otherwise required  by Law, reading substantially as
follows until such Securities have been sold pursuant to an effective
registration statement under the Securities Act, Rule 144 under the Securities
Act, or an opinion of counsel reasonably satisfactory in form and substance to
the Company and otherwise in full compliance with any other applicable
restrictions on transfer, including those contained in this Agreement and the
Stockholders' Agreement:

          "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE BEEN
     ACQUIRED FOR INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE
     SECURITIES ACT OF 1933, AS AMENDED (THE `ACT'), OR UNDER ANY STATE
     SECURITIES OR `BLUE SKY' LAWS. SAID SECURITIES MAY NOT BE SOLD,
     TRANSFERRED, ASSIGNED, PLEDGED, HYPOTHECATED OR OTHERWISE DISPOSED
     OF, UNLESS AND UNTIL REGISTERED UNDER THE ACT AND THE RULES AND
     REGULATIONS THEREUNDER AND ALL APPLICABLE STATE SECURITIES OR `BLUE
     SKY' LAWS OR EXEMPTED THEREFROM UNDER THE ACT AND ALL APPLICABLE
     STATE SECURITIES OR `BLUE SKY' LAWS."

                                      -6-
<PAGE>

     2.4.  Use of Proceeds.  The Company shall use the net cash proceeds of its
           ---------------
sale of Securities hereunder solely for working capital purposes.

                                  ARTICLE III

                                    CLOSING

     3.1.  Time and Place of Closing.  Upon the terms and subject to the
           -------------------------
conditions hereof, the closing of the Transactions (the "Closing") shall take at
                                                         -------
the offices of Friedman Kaplan & Seiler LLP, 875 Third Avenue, New York, New
York, at 10:00 a.m. local time on May 24, 1999, or at such other place and/or
time and/or on such other date as the parties may agree or as may be necessary
to permit the fulfillment or waiver of the conditions set forth in Article VII
(the "Closing Date"). The Closing shall be deemed to have occurred as of 12:01
      ------------
a.m. on the Closing Date.

     3.2.  Closing Actions and Deliveries.  Upon the terms and subject to the
           ------------------------------
satisfaction or waiver by the appropriate parties, if applicable, of the
conditions set forth in Article VII, to effect the purchase and sale of the
Securities and consummate the other Transactions, the parties shall on the
Closing Date take the following actions:

           (a)  Investor Purchase Price.  The Investor shall deliver to the
                ------------------------
Company by wire transfer of immediately available funds to the account
designated by the Company on or prior to the Closing Date an amount equal to the
Purchase Price.

           (b)  Delivery of Securities.  The Company shall deliver to the
                ----------------------
Investor, certificates, duly executed by authorized signatories of the Company,
representing the shares of Series A Preferred Stock, Series D Preferred Stock
and Series F Preferred Stock, to be issued to it in accordance with the terms of
Section 2.2.

           (c)  Other Deliveries.  The parties shall execute and deliver or
                ----------------
cause to be executed and delivered all other documents, instruments, opinions
and certificates contemplated by this Agreement to be delivered at the Closing
or necessary and appropriate in order to consummate the Transactions
contemplated to be consummated on the Closing Date.

     3.3.  Closing Costs; Taxes and Fees.  The Company shall pay or cause to be
           -----------------------------
paid at the Closing or, if due prior to the Closing or thereafter, promptly when
due, all transfer taxes (including sales taxes, gross receipts taxes, stamp
taxes, and other taxes) payable solely as a result of the payment of the
Purchase Price pursuant to this Agreement, but excluding any federal, state,
local or other jurisdictional income taxes (or franchise, excise, gross receipts
or other taxes that are generally imposed on a party on a periodic basis as a
result of a party's status, presence, conduct of business, holding of assets,
income, revenues, activities or other items).

                                      -7-
<PAGE>

                                  ARTICLE IV

                  REPRESENTATIONS AND WARRANTIES OF INVESTOR

          The Investor represents and warrants to the Company as follows:

     4.1.  Organization, Power and Authority.

           (a)  The Investor is a corporation duly organized, validly existing
and in good standing under the Laws of its jurisdiction of organization and has
the requisite power and authority to own, lease and operate its properties and
to carry on its business as now being conducted.

           (b)  It has the requisite power and authority to execute, deliver and
perform this Agreement and each other instrument, document, certificate and
agreement required or contemplated to be executed, delivered and performed by it
hereunder to which it is or will be a party.

           (c)  It is duly qualified to do business in each jurisdiction where
the character of its properties owned or held under lease or the nature of its
activities makes such qualification necessary other than any such jurisdiction
in which the failure to be so qualified would not have a Material Adverse Effect
on it or materially adversely affect the Transactions.

           (d)  The execution and delivery of this Agreement by it and the
consummation of the Transactions by it have been duly and validly authorized by
its Board of Directors and no other proceedings on its part which have not been
taken (including, without limitation, approval of its stockholders) are
necessary to authorize this Agreement or to consummate the Transactions.

           (e)  This Agreement has been duly executed and delivered by it and
constitutes its valid and binding obligation, enforceable against it in
accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar Laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity.

           (f)  As of the Closing Date, after giving effect to the Transactions,
it is not in breach of any obligation under this Agreement.

     4.2.  Consents; No Conflicts.  Neither the execution, delivery and
           ----------------------
performance by it of this Agreement nor the consummation of the Transactions
will (a) conflict with, or result in a breach or violation of, any provision of
its organizational documents; (b) subject to obtaining the Consents set forth on
Schedule 4.2, constitute, with or without the giving of notice or passage of
time or both, a breach, violation or default, create a Lien, or give rise to any
right of termination, modification, cancellation, prepayment or acceleration,
under (i) any Law or License or (ii) any

                                      -8-
<PAGE>

note, bond, mortgage, indenture, lease, agreement or other instrument, in each
case which is applicable to or binding upon it or any of its assets; or (c)
require any Consent, other than those set forth on Schedule 4.2 or the approval
of its board of directors or stockholders (which approvals have been obtained),
except in each case, where such breach, violation, default, Lien, right, or the
failure to obtain or give such Consent would not have a Material Adverse Effect
on it or materially adversely affect the Transactions. To its knowledge, there
is no fact relating to it or its Affiliates that would be reasonably expected to
prevent it from consummating the Transactions.

     4.3.  Litigation.  There is no action, proceeding or investigation pending
           ----------
or, to its knowledge, threatened against it or any of its properties or assets
that would be reasonably expected to have an adverse effect on its ability to
consummate the Transactions to which it is a party or to fulfill its obligations
under this Agreement or which seeks to prevent or challenge the Transactions.

     4.4.  Brokers.  It has not employed any broker, finder or investment banker
           -------
or incurred any liability for any brokerage fees, commissions or finder's fees
in connection with the Transactions.

     4.5.  No Distribution.  It is acquiring the Securities to be acquired by it
           ---------------
hereunder for the purpose of investment and not with a view to or for sale in
connection with any distribution thereof (other than in compliance with the
Stockholders' Agreement and the Securities Act and all applicable state
securities laws).

     4.6.  Investor Acknowledgments.  (a)  It is an "accredited investor" as
           ------------------------
defined in Regulation D of the Securities Act.  Its representatives have been
provided an opportunity to ask questions of, and have received answers thereto
from, the Company and its representatives regarding the terms and conditions of
its purchase of Securities, and the Company and its proposed business generally,
and have obtained all additional information requested by it to verify the
accuracy of all information furnished to it in connection with such purchase.

               (b)   It has such knowledge and experience in financial and
business affairs that it is capable of evaluating the merits and risks of
purchasing the Securities it is purchasing hereunder.

               (c)   It is not relying on and acknowledges that no
representation is being made by the Company or any of its officers, employees,
Affiliates, agents or representatives, except for representations and warranties
expressly set forth in this Agreement, and, in particular, it is not relying on,
and acknowledges that no representation is being made in respect of, (x) any
projections, estimates or budgets delivered to or made available to them of
future revenues, expenses or expenditures, or future results of operations and
(y) any other information or documents delivered or made available to it or its
representatives, except for representations and warranties expressly set forth
in this Agreement, and such information and documents obtained

                                      -9-
<PAGE>

by it as a stockholder of the Company and through its representatives who serve
as members of the Company's board of directors, as the case may be.

               (d)  In deciding to invest in the Company, it has relied
exclusively on the representations and warranties expressly set forth in this
Agreement, and the investigations made by itself and its representatives and its
and such representatives' knowledge of the industry in which the Company
proposes to operate. Based solely on such representations and warranties and
such investigations and knowledge and such information obtained by it by virtue
of its status as a stockholder of the Company, and through its representatives
who serve as members of the Company's board of directors, as the case may be, it
has determined that the Securities it is acquiring are a suitable investment for
it.

                                   ARTICLE V

                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY

          The Company represents and warrants as to the Company and its
Subsidiaries to the Investor as follows:

     5.1. Organization, Power and Authority.  (a)  Each of the Company and
          ---------------------------------
each of its Subsidiaries that is a corporation is a corporation duly organized,
validly existing and in good standing under the laws of the jurisdiction of its
incorporation and has the requisite corporate power and authority to own, lease
and operate its properties and to carry on its business as now being conducted
and as proposed to be conducted. Each of the Company's Subsidiaries that is a
limited liability company or a limited partnership is a limited liability
company or a limited partnership, as the case may be, duly formed, validly
existing and in good standing under the laws of the jurisdiction of formation
and has the requisite limited liability company or a limited partnership, as the
case may be, power and authority to own, lease and operate its properties and to
carry on its business as now being conducted and as proposed to be conducted.

               (b)  It has the requisite power, authority and/or legal capacity
to execute, deliver and perform this Agreement and each other instrument,
document, certificate and agreement required or contemplated to be executed,
delivered and performed by it hereunder to which it is or will be a party.

               (c)  Each of the Company and each of its Subsidiaries is duly
qualified to do business in each jurisdiction where the character of its
properties owned or held under lease or the nature of its activities makes such
qualification necessary other than any such jurisdiction in which the failure to
be so qualified would not have a Material Adverse Effect on it or materially
adversely affect the Transactions.

               (d)  The execution and delivery of this Agreement and the
consummation of the Transactions by it have been duly and validly authorized by
its Board of Directors and shareholders and, except for the filing of the
Restated Certificate with the office of the Secretary

                                      -10-
<PAGE>

of State of Delaware, no other proceedings which have not been taken are
necessary to authorize this Agreement or to consummate the Transactions.

               (e)  This Agreement has been duly executed and delivered by it
and constitutes the valid and binding obligation of it, enforceable against it
in accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar Laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity.

               (f)  As of the Closing, after giving effect to the Transactions,
it is not in breach of any obligation under this Agreement.

     5.2.  Consents; No Conflicts.  Neither the execution, delivery and
           ----------------------
performance of this Agreement nor the consummation of the Transactions will (a)
conflict with, or result in a breach or violation of, any provision of its
organizational documents; (b) subject to obtaining the Consents set forth on
Schedule 5.2, constitute, with or without the giving of notice or passage of
time or both, a breach, violation or default, create a Lien, or give rise to any
right of termination, modification, cancellation, prepayment or acceleration,
under (i) any Law or License, or (ii) any note, bond, mortgage, indenture,
lease, agreement or other instrument, in each case which is applicable to or
binding upon it or any of its assets; or (c) require any Consent, other than
those set forth on Schedule 5.2 or the approval of its Board of Directors or its
stockholders (which approval has been obtained), except in each case where such
breach, violation, default, Lien, right, or the failure to obtain or give such
Consent would not have a Material Adverse Effect on it or materially adversely
affect the Transactions or the operation of its business after the Closing Date.
To its knowledge, there is no fact relating to it or its Affiliates that would
be reasonably expected to prevent it from consummating the Transactions or
performing its obligations under this Agreement.

     5.3.  Litigation.  There is no action, proceeding or investigation pending
           ----------
or, to its knowledge, threatened against it or any of its properties or assets
that would have an adverse effect on its ability to consummate the Transactions
to which it is a party or to fulfill its obligations under this Agreement, or to
operate its business after the Closing Date, or which seeks to prevent or
challenge the Transactions. There is no judgment, decree, injunction, rule or
order outstanding against it which would limit in any material respect its
ability to operate its business in the manner currently contemplated.

     5.4.  Brokers.  It has not employed any broker, finder or investment banker
           -------
or incurred any liability for any brokerage fees, commissions or finder's fees
in connection with the Transaction, except for a fee paid to Chase Securities,
Inc. by the Company in an amount which has previously been disclosed to AT&T
PCS.

     5.5.  Capitalization  (a)  As of the date hereof, the authorized capital
           --------------
stock of the Company consists of 950,000 shares of Voting Common Stock, 950,000
shares of Non-Voting Common Stock, ten shares of Voting Preference Stock, 1,000
shares of Class C Common Stock,

                                      -11-
<PAGE>

3,000 shares of Class D Common Stock, 100,000 shares of Series A Preferred
Stock, 200,000 shares of Series B Preferred Stock, 215,000 shares of Series C
Preferred Stock, 50,000 shares of Series D Preferred Stock, 30,000 shares of
Series E Preferred Stock, 50,000 shares of Series F Preferred Stock and 70,000
shares of Senior Common Stock. As of the Closing Date, after giving effect to
the filing of the Restated Certificate and the Transactions there will be issued
and outstanding the shares of Preferred Stock and Common Stock set forth on
Schedule I. The record and beneficial owners of such outstanding shares of
Common Stock and Preferred Stock, as of the Closing Date, after giving effect to
the Transactions, are set forth on Schedule I.

               (b)  Except as set forth on Schedule 5.5, on the Closing Date,
after giving effect to the Transactions, there will not be any existing options,
warrants, calls, subscriptions, or other rights, or other agreements or
commitments, obligating the Company to issue, transfer or sell any shares of
capital stock of the Company.

     5.6.  Shares.  The shares of  Preferred Stock being issued to the Investor
           ------
hereunder, when issued and paid for pursuant to the terms of this Agreement and
after giving effect to the filing of the Restated Certificate, will be duly
authorized, validly issued, fully paid and non-assessable, and will be free of
any Liens caused or created by the Company, except as set forth in the
Stockholders' Agreement and the Restated Certificate.  The Securities issued
upon conversion of the Preferred Stock issued on the Closing Date, or upon
conversion thereof after the Closing Date, when issued pursuant to the terms
thereof, will be validly issued, fully paid and non-assessable, and will be free
of any Liens caused or created by the Company, except as set forth in the
Stockholders' Agreement and the Restated Certificate.

     5.7.  Offering of Securities. (a)  None of the Company or any Person acting
           ----------------------
on its behalf has offered the Securities or any similar equity securities of the
Company for sale to, or solicited any offers to buy Securities or any similar
equity securities of the Company from, any Person, other than a limited number
of other "accredited investors" (as defined in Rule 501(a) under the Securities
Act).

               (b)  None of the Company or any Person acting on its behalf will,
directly or indirectly, take any action which might subject the offering,
issuance or sale of the Securities to the registration and prospectus delivery
requirements of Section 5 of the Securities Act.

               (c)  Assuming the accuracy of the representations and warranties
of the Investor contained in Section 4.6, each of the offering and sale of
Securities under this Agreement to the Investor complies with all applicable
requirements of Federal and state securities laws.

     5.8.  Subsidiaries.  The Company owns directly or indirectly all of the
           ------------
outstanding shares of Capital Stock of each of its Subsidiaries, free and clear
of any Liens, except Liens granted to the Lenders pursuant to the Credit
Documents.  Set forth on Schedule 5.8 is a complete list of its direct and
indirect Subsidiaries indicating the jurisdictions in which such Subsidiary is
organized or qualified to conduct business.

                                      -12-
<PAGE>

                                  ARTICLE VI

                                   COVENANTS

     6.1.  Consummation of Transactions.  Each party shall use all commercially
           ----------------------------
reasonable efforts to take, or cause to be taken, all actions, and to do, or
cause to be done, all things necessary, proper or advisable and consistent with
applicable law to carry out all of their respective obligations under this
Agreement and to consummate the Transactions, which efforts shall include,
without limitation, the following:

               (a)  The parties shall use all commercially reasonable efforts to
cause the Closing to occur and the Transactions to be consummated in accordance
with the terms hereof, and, without limiting the generality of the foregoing, to
obtain all necessary Consents including the approval of this Agreement and the
Transactions by all Governmental Authorities and agencies, , and to make all
filings with and to give all notices to third parties which may be necessary or
reasonably required in order for the parties to consummate the Transactions.

               (b)  Each party shall furnish to the other parties all
information concerning such party and its Affiliates reasonably required for
inclusion in any application or filing to be made by the Company or any other
party in connection with the Transactions.

               (c)  Upon the request of any other party, each party shall
forthwith execute and deliver, or cause to be executed and delivered, such
further instruments of assignment, transfer, conveyance, endorsement, direction
or authorization and other documents as may reasonably be requested by such
party in order to effectuate the purposes of this Agreement.

     6.2.  Use of Proceeds.  The Company shall use the proceeds of the sale of
           ---------------
Securities only for the purposes described in Section 2.4.

     6.3.  Restated Certificate.  It is the intention of the parties hereto that
           --------------------
the Restated Certificate shall be amended as necessary (e.g., to increase the
number of authorized shares of Capital Stock) to give effect to, among other
things, the Securities issued at the Closing.  The parties agree to use their
respective best efforts to effectuate any and all such amendments at any such
Closing.

     6.4.  Offering of Securities.  None of the Company or any Person acting on
           ----------------------
its behalf will, directly or indirectly, take any action which might subject the
offering, license or sale of the Securities to the registration and prospectus
delivery requirements of Section 5 of the Securities Act.



                                      -13-
<PAGE>

                                  ARTICLE VII

                              CLOSING CONDITIONS


     7.1.  Conditions to Obligations of All Parties.  The obligation of each of
           ----------------------------------------
the parties to consummate the Transactions contemplated to occur at the Closing
shall be conditioned on the following, unless waived by each of the parties at
or prior to Closing:

               (a)  All Consents by any Governmental Authority required to
permit the consummation of the Transactions and to permit the transactions
contemplated by the Asset Purchase Agreement, the failure to obtain or make
which would be reasonably expected to have a Material Adverse Effect on the
Company or Investor or to materially adversely affect the Transactions shall
have been obtained or made.

               (b)  No preliminary or permanent injunction or other order,
decree or ruling issued by a Governmental Authority, nor any statute, rule,
regulation or executive order promulgated or enacted by any Governmental
Authority, shall be in effect that would (i) impose material limitations on the
ability of any party to consummate the Transactions or prohibit such
consummation, or (ii) impair in any material respect the operation of the
Company.

               (c)  The Restated Certificate shall have been filed with the
Delaware Secretary of State.

               (d)  Each Stockholder (as such term is defined in the
Stockholders' Agreement) other than the Investor shall have delivered a waiver
of the pre-emptive rights afforded to such Stockholder pursuant to Section
7.2(b) of the Stockholders' Agreement.

               (e)  The Company shall have received any consent of the lenders
that may be required pursuant to the terms of the Credit Agreement.

     7.2.  Conditions to Obligations of the Company.  The obligation of the
           ----------------------------------------
Company to consummate the Transactions contemplated to occur at the Closing
shall be further conditioned upon the satisfaction or fulfillment, at or prior
to the Closing, of the following conditions by the Investor, unless waived by
the Company at or prior to the Closing:

               (a)  The representations and warranties of the Investor contained
herein shall be true and correct in all material respects (except for
representations and warranties that are qualified as to materiality, which shall
be true and correct), in each case when made and at and as of the Closing
(except for representations and warranties made as of a specified date, which
shall be true and correct as of such date) with the same force and effect as
though made at and as of such time, except for inaccuracies in respect of the
representations and warranties set forth in Section 4.3, (disregarding any
qualifications as to materiality contained therein) that in the aggregate would
not be reasonably expected to have a Material Adverse Effect on the Company or
to materially adversely affect the Transactions.

               (b)  The Investor shall have performed in all material respects
all agreements contained herein or required to be performed by it at or before
the Closing.

                                      -14-
<PAGE>

               (c)  An officer of the Investor shall have delivered to the
Company a certificate, dated the Closing Date, certifying as to the fulfillment
of the conditions set forth in paragraphs (a) and (b) above.

               (d)  The Company shall have been furnished with an Opinion of
Counsel to the Investor dated the Closing Date.

               (e)  All corporate and other proceedings of the Investor in
connection with the Transactions, and all documents and instruments incident
thereto, shall be reasonably satisfactory in form and substance to the Company,
and the Investor shall have delivered to the Company such receipts, documents,
instruments and certificates, in form and substance reasonably satisfactory to
the Company which the Company shall have reasonably requested in order to
consummate the Transactions.

     7.3.  Conditions to the Obligations of the Investors.  The obligation of
           ----------------------------------------------
the Investor to consummate the Transactions contemplated to occur at the Closing
shall be further conditioned upon the satisfaction or fulfillment, at or prior
to the Closing, of the following conditions, unless waived by it at or prior to
the Closing:

               (a)  The representations and warranties of the Company contained
herein shall be true and correct in all material respects (except for
representations and warranties that are qualified as to materiality, which shall
be true and correct), in each case when made and at and as of the Closing
(except for representations and warranties made as of a specified date, which
shall be true and correct as of such date) with the same force and effect as
though made at and as of such time, except for inaccuracies in respect of the
representations and warranties set forth in Section 5.3 (disregarding any
qualifications as to materiality contained therein) that in the aggregate would
not be reasonably expected to have a Material Adverse Effect on the Company or
to materially adversely affect the Transactions.

               (b)  The Company shall have performed in all material respects
all agreements contained herein or required to be performed by it at or before
the Closing.

               (c)  An officer of the Company shall have delivered to the
Investor a certificate, dated the Closing Date, certifying as to the fulfillment
of the conditions set forth in paragraphs (a) and (b) above.

               (d)  The Investor shall have been furnished with an Opinion of
Counsel to the Company dated the Closing Date.

               (e)  All corporate and other proceedings of the Company in
connection with the Transactions, and all documents and instruments incident
thereto, shall be reasonably satisfactory in form and substance to the Investor,
the Company shall have delivered to the Investor all such receipts, documents,
instruments and certificates, in form and substance

                                      -15-
<PAGE>

reasonably satisfactory to the Investor, which the Investor shall have
reasonably requested in order to consummate the Transactions.

                                 ARTICLE VIII

                         SURVIVAL AND INDEMNIFICATION

     8.1.  Survival.  Except for the representations and warranties contained in
           --------
Sections 4.1(a), (b), (d) and (e), and 5.1(a), (b), (d) and (e) (which shall
survive the Closing, without regard to any investigation made by any of the
parties hereto, until the expiration of the applicable statute of limitations
relating thereto), the representations and warranties made in this Agreement
shall survive the Closing without regard to any investigation made by any of the
parties hereto until the second anniversary thereof and shall thereupon expire
together with any right to indemnification in respect thereof (except to the
extent a written notice asserting a claim for breach of any such representation
or warranty and describing such claim in reasonable detail shall have been given
prior to the expiration of the applicable survival period to the party which
made such representation or warranty).  The covenants and agreements contained
herein to be performed or complied with prior to the Closing shall expire at the
Closing.  The covenants and agreements contained in this Agreement to be
performed or complied with after the Closing shall survive the Closing; provided
that the right to indemnification pursuant to this Article VIII in respect of a
breach of a representation or warranty shall expire upon the application of the
applicable survival period of the Closing (except to the extent written notice
asserting a claim thereunder and describing such claim in reasonable detail
shall have been given prior to such expiration to the party from whom such
indemnification is sought).  After the Closing, the sole and exclusive remedy of
the parties for any breach or inaccuracy of any representation or warranty
contained in this Agreement, or any other claim (whether or not alleging a
breach of this Agreement) that arises out of the facts and circumstances
constituting such breach or inaccuracy, shall be the indemnity provided in this
Article VIII.

     8.2.  Indemnification by the Investor.  The Investor shall indemnify and
           -------------------------------
hold harmless the Company and its Affiliates, directors, shareholders, officers,
employees, agents and/or the legal representatives of any of them (each, a
"Section 8.2 Indemnified Party"), against all liabilities and expenses
 -----------------------------
(including amounts paid in satisfaction of judgments, in compromise, as fines
and penalties, and as counsel fees) (collectively, "Losses") incurred by him/her
                                                    ------
or it in connection with the investigation, defense, or disposition of any
action, suit or other proceeding in which any Section 8.2 Indemnified Party may
be involved or with which he/she or it may be threatened (whether arising out of
or relating to matters asserted by third parties against a Section 8.2
Indemnified Party or incurred or sustained by such party in the absence of a
third-party claim), that arises out of or results from (a) any representation or
warranty of the Investor contained in this Agreement being untrue in any
material respect as of the date on which it was made or (b) any material default
by such indemnifying party or any of its Affiliates in the performance of their
respective obligations under this Agreement, except to the extent (but only to
the extent) any such Losses arise out of or result from the gross negligence or
willful misconduct of such

                                      -16-
<PAGE>

Section 8.2 Indemnified Party or its Affiliates, provided, that the aggregate
liability of the Investor to indemnify Section 8.2 Indemnified Parties against
Losses arising out of or resulting from (x) any such representation or warranty
of the Investor contained in this Agreement and included in this indemnification
by the Investor being untrue, or (y) default by the Investor or any of its
Affiliates in the performance of their respective obligations under this
Agreement shall (except, in the case of clause (y), to the extent (but only to
the extent) any such Losses arise out of or result from the gross negligence or
willful misconduct of the Investor) be limited to $30,000,000; provided further,
that the Investor shall have the option of satisfying any such Losses incurred
by the Company (in its capacity as a Section 8.2 Indemnified Party) by tendering
to the Company shares of Series A Preferred Stock (such shares to be valued for
such purposes at the aggregate liquidation preference thereof).

     8.3.  Indemnification by the Company.  The Company shall indemnify and hold
           ------------------------------
harmless the Investor and its Affiliates, directors, shareholders, officers,
employees, agents and/or the legal representatives of any of them (each, a
"Section 8.3 Indemnified Party"), against all Losses incurred by him/her or it
 -----------------------------
in connection with the investigation, defense, or disposition of any action,
suit or other proceeding in which any Section 8.3 Indemnified Party may be
involved or with which he/she or it may be threatened (whether arising out of or
relating to matters asserted by third parties against a Section 8.3 Indemnified
Party or incurred or sustained by such party in the absence of a third-party
claim), that arises out of or results from (a) any representation or warranty of
the Company contained in this Agreement being untrue in any material respect as
of the date on which it was made or (b) any material default by the Company or
any of its Affiliates in the performance of their respective obligations under
this Agreement, except to the extent (but only to the extent) any such Losses
arise out of or result from the gross negligence or willful misconduct of such
Section 8.3 Indemnified Party or its Affiliates, provided, that the aggregate
liability of the Company to indemnify Section 8.3 Indemnified Parties against
Losses arising out of or resulting from (x) any such representation or warranty
of the Company contained in this Agreement and included in this indemnification
by the Company being untrue, or (y) any default by the Company or any of its
Affiliates in the performance of their respective obligations under this
Agreement shall (except, in the case of clause (y), to the extent (but only to
the extent) any such Losses arise out of or result from the gross negligence or
willful misconduct of the Company) be limited to $30,000,000.

     8.4.  Procedures.

               (a)  The terms of this Section 8.4 shall apply to any claim (a
"Claim") for indemnification under the terms of Sections 8.2 or 8.3. The
 -----
Section 8.2 Indemnified Party or Section 8.3 Indemnified Party (each, an
"Indemnified Party"), as the case may be, shall give prompt written notice of
 -----------------
such Claim to the indemnifying party (the "Indemnifying Party") under the
                                           ------------------
applicable Section, which party may assume the defense thereof, provided that
any delay or failure to so notify the Indemnifying Party shall relieve the
Indemnifying Party of its obligations hereunder only to the extent, if at all,
that it is materially prejudiced by reason of such delay or failure. The
Indemnified Party shall have the right to approve any counsel selected by the

                                      -17-
<PAGE>

Indemnifying Party and to approve the terms of any proposed settlement, such
approval not to be unreasonably delayed or withheld (unless, in the case of
approval of a proposed settlement, such settlement provides only, as to the
Indemnified Party, the payment of money damages actually paid by the
Indemnifying Party and a complete release of the Indemnified Party in respect of
the claim in question). Notwithstanding any of the foregoing to the contrary,
the provisions of this Article VIII shall not be construed so as to provide for
the indemnification of any Indemnified Party for any liability to the extent
(but only to the extent) that such indemnification would be in violation of
applicable law or that such liability may not be waived, modified or limited
under applicable law, but shall be construed so as to effectuate the provisions
of this Article VIII to the fullest extent permitted by law.

               (b)  In the event that the Indemnifying Party undertakes the
defense of any Claim, the Indemnifying Party will keep the Indemnified Party
advised as to all material developments in connection with such Claim,
including, but not limited to, promptly furnishing the Indemnified Party with
copies of all material documents filed or served in connection therewith.

               (c)  In the event that the Indemnifying Party fails to assume the
defense of any Claim within ten business days after receiving written notice
thereof, the Indemnified Party shall have the right, subject to the Indemnifying
Party's right to assume the defense pursuant to the provisions of this Article
VIII, to undertake the defense, compromise or settlement of such Claim for the
account of the Indemnifying Party. Unless and until the Indemnified Party
assumes the defense of any Claim, the Indemnifying Party shall advance to the
Indemnified Party any of its reasonable attorneys' fees and other costs and
expenses incurred in connection with the defense of any such action or
proceeding. Each Indemnified Party shall agree in writing prior to any such
advancement that, in the event he or it receives any such advance, such
Indemnified Party shall reimburse the Indemnifying Party for such fees, costs
and expenses to the extent that it shall be determined that he or it was not
entitled to indemnification under this Article VIII.

               (d)  In no event shall an Indemnifying Party be required to pay
in connection with any Claim for more than one firm of counsel (and local
counsel) for each of the following groups of Indemnified Parties: (i) the
Investor, its Affiliates, directors, shareholders, officers, employees, agents
and/or the legal representatives of any of them; and (ii) the Company, its
Affiliates, directors, shareholders, officers, employees, agents and/or the
legal representatives of any of them.

     8.5.  Registration Rights. Notwithstanding anything to the contrary in this
           -------------------
Article VIII, the indemnification and contribution provisions set forth in
Sections 5(e) and 5(f) of the Stockholders' Agreement shall govern any claim
made with respect to the registration statements filed pursuant to Section 5 of
the Stockholders' Agreement or sales made thereunder.

                                      -18-
<PAGE>

                                  ARTICLE IX

                                  TERMINATION

     9.1.  Termination. In addition to any other rights of termination set forth
           -----------
herein, this Agreement may be terminated, and the Transactions abandoned,
without further obligation of any party (except as set forth herein), at any
time prior to the Closing Date:

               (a)  by mutual written consent of the parties;

               (b)  by either party by written notice to the other parties, if
the Closing shall not have occurred on or before the date that is six months
after the date hereof, provided that the party electing to exercise such right
is not otherwise in breach of its obligations under this Agreement; or

               (c)  by any party by written notice to the other parties, if the
consummation of the Transactions shall be prohibited by a final, non-appealable
order, decree or injunction of a court of competent jurisdiction.

     9.2.  Effect of Termination.  In the event of a termination of this
           ---------------------
Agreement, no party hereto shall have any liability or further obligation to any
other party to this Agreement, except as set forth in paragraph (b) below, and
except that nothing herein will relieve any party from liability for any breach
by such party of this Agreement.

               (a)  In the event of a termination of this Agreement pursuant to
Section 9.1, all provisions of this Agreement shall terminate, except Articles
VIII and X.

               (b)  Whether or not the Closing occurs, except as otherwise
expressly provided in this Agreement, all costs and expenses incurred in
connection with this Agreement and the Transactions shall be paid by the party
incurring such expenses.

                                   ARTICLE X

                           MISCELLANEOUS PROVISIONS

     10.1. Amendment and Modification.  This Agreement may be amended, modified
           --------------------------
or supplemented only by written agreement of each of the parties.

     10.2. Waiver of Compliance; Consents.  Any failure of any of the parties to
           ------------------------------
comply with any obligation, covenant, agreement or condition herein may be
waived by the party or parties entitled to the benefits thereof only by a
written instrument signed by the party granting such waiver, but such waiver or
failure to insist upon strict compliance with such obligation, covenant,
agreement or condition shall not operate as a waiver of, or estoppel with
respect to, any subsequent or other failure.  Whenever this Agreement requires
or permits consent by or on

                                      -19-
<PAGE>

behalf of any party hereto, such consent shall be given in writing in a manner
consistent with the requirement for a waiver of compliance as set forth in this
Section 10.2.

     10.3. Notices.  All notices or other communications hereunder shall be in
           -------
writing and shall be given (and shall be deemed to have been duly given upon
receipt) by delivery in person against receipt, by facsimile transmission with
confirmation of receipt, or by registered or certified mail (return receipt
requested), postage prepaid, with an acknowledgment of receipt signed by the
addressee or an authorized representative thereof, addressed as follows (or to
such other address for a party as shall be specified by like notice; provided
that notice of a change of address shall be effective only upon receipt
thereof):

                                      -20-
<PAGE>

     If to the Investor, to:

     c/o AT&T Wireless Services, Inc.
     7277 164th Avenue N.E.
     Redmond, Washington  98052
     Attention: William H. Hague, Esq.
     Facsimile: (425) 580-8405

     With a copy to:

     Friedman Kaplan & Seiler LLP
     875 Third Avenue
     New York, New York  10019
     Attention: Gregg L. Lerner, Esq.
     Facsimile: (212) 833-1100

     If to the Company, to it:

     1010 N. Glebe Road, Suite 800
     Arlington, Virginia  22201
     Attn:  General Counsel
     Facsimile: (703) 236-1102

     10.4. Parties in Interest; Assignment.  This Agreement is binding upon and
           -------------------------------
is solely for the benefit of the parties hereto and their respective permitted
successors, legal representatives and permitted assigns.  Neither the Company
nor the Investor may assign its rights and obligations hereunder without the
prior written consent of each of the other parties; provided, that: (a) the
Company shall have the right to assign its rights under this Agreement to the
lenders (the "Lenders") named in the Credit Agreement, as security pursuant to
              -------
the terms of the Credit Documents, it being understood that as a result of any
such assignment to the Lenders, the Lenders shall not assume any obligations of
the Company hereunder.

     10.5. Applicable Law.  This Agreement shall be governed by and construed in
           --------------
accordance with the laws of the State of New York without giving effect to the
conflicts of law principles thereof.  The parties hereto hereby irrevocably and
unconditionally consent to submit to the non-exclusive jurisdiction of the
courts of the State of New York and of the United States of America located in
the County of New York, New York (the "New York Courts") for any litigation
                                       ---------------
arising out of or relating to this Agreement and the Transactions, waive any
objection to the laying of venue of any such litigation in the New York Courts
and agrees not to plead or claim in any New York Court that such litigation
brought therein has been brought in an inconvenient forum.

                                      -21-
<PAGE>

     10.6.  Counterparts.  This Agreement may be executed in two or more
            ------------
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

     10.7.  Interpretation.  The article and section headings contained in this
            --------------
Agreement are for convenience of reference only, are not part of the agreement
of the parties and shall not affect in any way the meaning or interpretation of
this Agreement.

     10.8.  Entire Agreement.  This Agreement, including the exhibits and
            ----------------
schedules hereto and thereto and the certificates and instruments delivered
pursuant to the terms of this Agreement, embody the entire agreement and
understanding of the parties hereto in respect of the Transactions. There are no
restrictions, promises, representations, warranties, covenants or undertakings,
other than those expressly set forth or referred to herein. This Agreement
supersedes all prior agreements and understandings between the parties with
respect to such Transactions.

     10.9.  Publicity.  So long as this Agreement is in effect, the parties
            ---------
agree to consult with each other in issuing any press release or otherwise
making any public statement with respect to the Transactions, and no party shall
issue any press release or make any such public statement prior to such
consultation, except as may be required by Law. No press release or other public
statement by the parties hereto shall disclose any of the financial terms of the
Transactions without the prior consent of the other parties, except as may be
required by Law. A breach of the provisions of this Section 10.9 by a party
shall not give rise to any right to terminate this Agreement.

     10.10. Specific Performance.  The parties hereto agree that irreparable
            --------------------
damage would occur in the event that any of the provisions of this Agreement
were not performed in accordance with their specific terms or were otherwise
breached.  It is accordingly agreed that the parties shall be entitled to an
injunction or injunctions to prevent breaches of this Agreement and to enforce
specifically the terms and provisions hereof in any New York Courts.

     10.11. Remedies Cumulative.  All rights, powers and remedies provided under
            -------------------
this Agreement or otherwise available in respect hereof at law or in equity
shall be cumulative and not alternative, and the exercise or beginning of the
exercise of any thereof by any party shall not preclude the simultaneous or
later exercise of any other such right, power or remedy by such party.

     10.12. Severability.  Any provision of this Agreement that is prohibited or
            ------------
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the
remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction.  If any court determines that any covenant or any part of
any covenant is invalid or unenforceable, such covenant shall be enforced to the
extent permitted by such

                                      -22-
<PAGE>

court, and all other covenants shall not thereby be affected and shall be given
full effect, without regard to the invalid portions.

     10.13.  Beneficiaries of Agreement.  The representations, warranties,
             --------------------------
covenants and agreements expressed in this Agreement are for the sole benefit of
the other parties hereto and the Section 8.2 Indemnified Parties and Section 8.3
Indemnified Parties and are not intended to benefit, and may not be relied upon
or enforced by, any other party as a third party beneficiary or otherwise.

     10.14.  Stock Valuation.  The parties hereby agree that the per share value
             ---------------
attributable as of the date hereof to the Series F Preferred Stock is $1.00.

                                      -23-
<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first above written.


                                 TELECORP PCS, INC.

                                 By: /s/ Thomas H. Sullivan
                                     ------------------------------
                                   Name:  Thomas H. Sullivan
                                   Title: Executive Vice President

                                 AT&T WIRELESS PCS, INC.

                                 By: /s/ William W. Hague
                                     ------------------------------
                                   Name:  William W. Hague
                                   Title: Senior Vice President

                                      -24-
<PAGE>

                                                                      SCHEDULE I

                                Capitalization
                                --------------

                               Filed Separately.

                                      -25-
<PAGE>

                                                                    SCHEDULE 4.2
                               Investor Consents
                               -----------------


     The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:

     1.   The Federal Communications Commission.

     2.   The Federal Trade Commission/Department of Justice.

     3.   Various Governmental Authorities with respect to Franchise Laws.

                                      -26-
<PAGE>

                                                                    SCHEDULE 5.2

                               Company Consents
                               ----------------


     The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:

     1.   The Federal Communications Commission.

     2.   The Federal Trade Commission/Department of Justice.

     3.   Various Governmental Authorities with respect to Franchise Laws.

                                      -27-
<PAGE>

                                                                    SCHEDULE 5.5

                      Outstanding Options, Warrants, Etc.
                      -----------------------------------

1.   Upon the closing of the transaction contemplated by the License Acquisition
     Agreement by and between Wireless 2000, Inc. ("Wireless") and the Company,
     dated as of December 2, 1998 (the "Wireless Acquisition Agreement"), the
     Company shall issue to Wireless: (i) five hundred forty-five and 20/100
     (545.20) shares of Series C Preferred Stock, par value $.01 per share, and
     (ii) five hundred thirty and 40/100 (530.40) shares of Class A Voting
     Common Stock, par value $.01 per share, of the Company.

2.   Pursuant to the terms of that certain Stock Purchase Agreement dated March
     22, 1999 by and among the Company, AT&T Wireless PCS Inc. and certain other
     stockholders of the Company, as amended the Company shall issue 32,286
     shares of Class A Common Voting Stock and Series C, D and F Preferred
     Stock.

3.   Pursuant to the terms of that certain Puerto Stock Purchase Agreement,
     dated as of March 30, 1999, by and among the Company, Puerto Rico
     Acquisiton Corp. and the Cash Equity Investors and Management Stockholders
     identified therein, the Company shall issue an aggregate amount of
     39,996.60 shares of each of Class A Common Voting Stock and Series C
     Preferred Stock.

                                      -28-
<PAGE>

                                                                    SCHEDULE 5.8
                                                                    ------------

                          Subsidiaries of the Company
                          ---------------------------

<TABLE>
<CAPTION>
=========================================================================================
          Subsidiary Name                  State Of                  Qualified In:
                                         Incorporation
- -----------------------------------------------------------------------------------------
<S>                                      <C>                  <C>
1.  TeleCorp Communications, Inc.                 DE          AR, DC, IL, IN, LA, MA,
                                                              MO, MS, NH, TN, TX,
                                                              VA
- -----------------------------------------------------------------------------------------
2.  TeleCorp Holding Corp., Inc.                  DE          LA, MA, NH, TN, TX,
                                                              VA/1/
- -----------------------------------------------------------------------------------------
3.  TeleCorp Limited Holdings, Inc.               DE          AR, DC, IL, MA, MS
- -----------------------------------------------------------------------------------------
4.  TeleCorp Realty Holdings, Inc.                DE                 None
- -----------------------------------------------------------------------------------------
5.  TeleCorp PCS, L.L.C.
    (Sole Member is: TeleCorp PCS,                DE                 None
    Inc.)
- -----------------------------------------------------------------------------------------
6.  TeleCorp Realty, L.L.C.                       DE          AR, DC, IL, LA, MA,
                                                              MO,MS, NH, TN, TX
    (Managing Member is: TeleCorp
    Communications, Inc.)
- -----------------------------------------------------------------------------------------
7.  TeleCorp Equipment Leasing, L.P.              DE          AR, DC, IL, IN, LA, MA,
                                                              MO, MS, NH, TN, TX
    (General Partner is: TeleCorp Limited
    Holdings, Inc.)
- -----------------------------------------------------------------------------------------
8.  Affiliate License Co., L.L.C.                 DE                 None
    (Sole Member is TeleCorp PCS, Inc.)
=========================================================================================
</TABLE>










- -----------------------------------
/1/ TeleCorp Holding Corp will be withdrawn from each of the states in which it
is qualified (except Delaware) upon the filing of the company's tax returns for
the year ended December 31, 1998.

                                      -29-

<PAGE>

                                                                 EXHIBIT 10.15.1
================================================================================


                         LICENSE ACQUISITION AGREEMENT

                                    between

                              MERCURY PCS II, LLC

                                      and

                              TELECORP PCS, INC.

                           Dated as of May 15, 1998

================================================================================


                               TABLE OF CONTENTS
                               -----------------
<TABLE>
<CAPTION>
                                                                                                                Page
                                                                                                                ----
<S>                                                                                                             <C>
ARTICLE I -- DEFINITIONS.......................................................................................  1


ARTICLE II -- PURCHASE AND SALE OF LICENSES; PAYMENT
OF CONSIDERATION; CERTAIN RESTRICTIONS ON TRANSFER.............................................................  5


         2.1  Purchase and Sale of Licenses....................................................................  5

         2.2  Payment of Consideration.........................................................................  5

         2.3  Assumption of Indebtedness.......................................................................  5

         2.4  Payment of Certain Expenses......................................................................  5

         2.5  Restrictive Legends..............................................................................  5


ARTICLE III -- CLOSING.........................................................................................  6


         3.1  Time and Place of Closing........................................................................  6

         3.2  Closing Actions and Deliveries...................................................................  6

         3.3  Payment of Transfer Taxes........................................................................  7


ARTICLE IV -- REPRESENTATIONS AND WARRANTIES OF MERCURY........................................................  7


         4.1  Organization, Power and Authority................................................................  7

         4.2  Consents; No Conflicts...........................................................................  8

         4.3  Litigation.......................................................................................  8

         4.4  FCC Compliance...................................................................................  8

         4.5  Brokers..........................................................................................  8

         4.6  Mercury Licenses.................................................................................  9

         4.7  No Distribution..................................................................................  9

         4.8  Investor Acknowledgments.........................................................................  9
</TABLE>

                                       i


<TABLE>
<S>                                                                                                             <C>
ARTICLE V -- REPRESENTATIONS AND WARRANTIES OF THE COMPANY..................................................... 10

         5.1  Organization, Power and Authority................................................................ 10

         5.2  Consents; No Conflicts........................................................................... 11

         5.3  Litigation....................................................................................... 11

         5.4  FCC Compliance................................................................................... 11

         5.5  Brokers.......................................................................................... 11

         5.6  Capitalization................................................................................... 12

         5.7  Shares........................................................................................... 12

         5.8  Offering of Securities........................................................................... 12

         5.9  Securities Purchase Agreement.................................................................... 13


ARTICLE VI -- COVENANTS........................................................................................ 13


         6.1  Consummation of Transactions..................................................................... 13

         6.2  Confidentiality.................................................................................. 14

         6.3  Certain Covenants................................................................................ 15


ARTICLE VII -- CLOSING CONDITIONS.............................................................................. 15


         7.1  Conditions to Obligations of All Parties......................................................... 15

         7.2  Conditions to Obligations of the Company......................................................... 16

         7.3  Conditions to the Obligations of Mercury......................................................... 17


ARTICLE VIII  -- SURVIVAL AND INDEMNIFICATION.................................................................. 18


         8.1  Survival......................................................................................... 18

         8.2  Indemnification by Mercury....................................................................... 18

         8.3  Indemnification by the Company................................................................... 19
</TABLE>

                                      ii


                               TABLE OF CONTENTS
                               -----------------
                                  (continued)
<TABLE>
<CAPTION>
                                                                                                                Page
                                                                                                                ----
<S>                                                                                                             <C>
         8.4  Procedures....................................................................................... 19

         8.5  Registration Rights.............................................................................. 20


ARTICLE IX -- TERMINATION...................................................................................... 20


         9.1  Termination...................................................................................... 20

         9.2  Effect of Termination............................................................................ 21


ARTICLE X -- MISCELLANEOUS PROVISIONS.......................................................................... 21


         10.1  Amendment and Modification...................................................................... 21

         10.2  Waiver of Compliance; Consents.................................................................. 21

         10.3  Notices......................................................................................... 21

         10.4  Parties in Interest; Assignment................................................................. 22

         10.5  Applicable Law.................................................................................. 22

         10.6  Counterparts.................................................................................... 23

         10.7  Interpretation.................................................................................. 23

         10.8  Entire Agreement................................................................................ 23

         10.9  Publicity....................................................................................... 23

         10.10  Specific Performance........................................................................... 23

         10.11  Remedies Cumulative............................................................................ 23
</TABLE>

Schedules
- ---------

Schedule I     --   Mercury Licenses
Schedule 4.2   --   Mercury Consents
Schedule 4.3   --   Mercury Litigation
Schedule 4.6   --   Mercury FCC Proceedings

                                      iii


Schedule 5.2  --   Company Consents

Exhibits
- --------

Exhibit A     --   Form of Opinion of Counsel to Mercury
Exhibit B     --   Form of Opinion of FCC Counsel to Mercury
Exhibit C     --   Form of Opinion of Counsel to Company
Exhibit D     --   Form of Assignment

                                      iv


                         LICENSE ACQUISITION AGREEMENT
                         -----------------------------

          LICENSE ACQUISITION AGREEMENT, dated as of May 15, 1998, between
MERCURY PCS II, LLC, a Mississippi limited liability company ("Mercury"), and
                                                               -------
TELECORP PCS, a Delaware corporation (the "Company").
                                           -------

          WHEREAS, Mercury has been granted the PCS licenses described on
Schedule I (the "Mercury Licenses"); and
                 ----------------

          WHEREAS, Mercury wishes to sell to the Company, and the Company wishes
to acquire from Mercury, the Mercury Licenses, all on the terms and subject to
the conditions herein set forth;

          NOW, THEREFORE, in consideration of the promises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the parties agree as follows:

                                   ARTICLE I

                                  DEFINITIONS
                                  -----------
<PAGE>

          As used herein, the following terms have the following meanings
(unless indicated otherwise, all Section and Article references are to Sections
and Articles in this Agreement, and all Schedule and Exhibit references are to
Schedules and Exhibits to this Agreement):

          "Affiliate" means, with respect to any Person, any other Person that
           ---------
directly, or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with that Person.  For purposes of this
definition, "control" (including the terms "controlling" and "controlled") means
             -------                        -----------       ----------
the power to direct or cause the direction of the management and policies of a
Person, directly or indirectly, whether through the ownership of securities or
partnership or other ownership interests, by contract or otherwise.

          "AT&T PCS" means AT&T Wireless PCS Inc., a Delaware corporation.
           --------

          "Cash Equity Investors" means the Persons identified as such in the
           ---------------------
Securities Purchase Agreement.

          "Claim" has the meaning set forth in Section 8.5.
           -----

          "Closing" has the meaning set forth in Section 3.1.
           -------

          "Closing Date" has the meaning set forth in Section 3.1.
           ------------

          "Common Stock" means, collectively, the Voting Common Stock and the
           ------------
Non-Voting Common Stock.

          "Company" has the meaning set forth in the preamble.
           -------

          "Confidential Information" means any and all information regarding the
           ------------------------
business, finances, operations, products, services and customers of the Person
specified and its Affiliates, in written or oral form or in any other medium.

          "Consents" means all consents and approvals of Governmental
           --------
Authorities or other third parties necessary to authorize, approve or permit the
parties hereto to consummate the Transactions and for the Company to operate its
business after the Closing Date as currently contemplated.

          "FCC" means the Federal Communications Commission or similar
           ---
regulatory authority established in replacement thereof.
<PAGE>

          "FCC Law" means the Communications Act of 1934, as amended, including
           -------
as amended by the Telecommunications Act of 1996, and the rules, regulations and
policies promulgated thereunder.

          "Final Order" has the meaning set forth in Section 7.1(b).
           -----------

          "Governmental Authority" means a Federal, state or local court,
           ----------------------
legislature, governmental agency (including, without limitation, the United
States Department of Justice), commission or regulatory or administrative
authority or instrumentality.

          "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements Act of
           -------
1976, as amended, and the rules and regulations promulgated thereunder.

          "Indemnified Party" has the meaning set forth in Section 8.4.
           -----------------

          "Indemnifying Party" has the meaning set forth in Section 8.4.
           ------------------

          "Law" means applicable common law and any statute, ordinance, code or
           ---
other law, rule, permit, permit condition, regulation, order, decree, technical
or other standard, requirement or procedure enacted, adopted, promulgated,
applied or followed by any Governmental Authority.

          "License" means a license, permit, certificate of authority, waiver,
           -------
approval, certificate of public convenience and necessity, registration or other
authorization, consent or clearance to construct or operate a facility,
including any emissions, discharges or releases therefrom, or to transact an
activity or business, to construct a tower or to use an asset or process, in
each case issued or granted by a Governmental Authority.

          "Lien" means, with respect to any asset, any mortgage, lien, pledge,
           ----
charge, security interest, right of first refusal or right of others therein, or
encumbrance of any nature whatsoever in respect of such asset.

          "Losses" has the meaning set forth in Section 8.2.
           ------

          "Management Stockholders" means the Persons identified as such in the
           -----------------------
Securities Purchase Agreement.

          "Material Adverse Effect" means a material adverse effect on the
           -----------------------
business, financial condition, assets, liabilities or results of operations or
prospects of the Person specified.

          "Mercury" has the meaning set forth in the preamble.
           -------
<PAGE>

          "Mercury License Transfer" has the meaning set forth in Section
           ------------------------
3.2(a).

          "Mercury Licenses" has the meaning set forth in the first recital.
           ----------------

          "New York Courts" has the meaning set forth in Section 10.6.
           ---------------

          "Non-Voting Common Stock" means the Company's Class B Non-Voting
           -----------------------
Common Stock, par value $.01 per share.

          "Original Certificate" has the meaning set forth in the second
           --------------------
recital.

          "Person" means an individual, corporation, partnership, limited
           ------
liability company, association, joint stock company, Governmental Authority,
business trust, unincorporated organization, or other legal entity.

          "Preferred Stock" means the shares of Series A Preferred Stock, Series
           ---------------
C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series
F Preferred Stock of the Company.

          "Purchaser" means any Person identified as such in the Securities
           ---------
Purchase Agreement.

          "Representatives" has the meaning set forth in Section 6.2(a).
           ---------------

          "Restated Bylaws" means the Amended and Restated Bylaws of the
           ---------------
Company, in the form of Exhibit D to the Securities Purchase Agreement, to be
adopted as of the TeleCorp Closing Date, as the same may be amended, modified or
supplemented in accordance with the terms thereof.

          "Restated Certificate" means the Amended and Restated Certificate of
           --------------------
Incorporation of  the Company, in the form of Exhibit E to the Securities
Purchase Agreement, to be filed with the office of the Secretary of State of the
State of Delaware on the TeleCorp Closing Date, as the same may be amended,
modified or supplemented in accordance with the terms thereof.

          "Section 8.2 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.2.

          "Section 8.3 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.3.

          "Securities" means the shares of Series C Preferred Stock and Common
           ----------
Stock being issued hereunder, together with any shares of Common Stock issued
upon conversion of shares of Series C Preferred Stock.
<PAGE>

          "Securities Act" means the Securities Act of 1933, as amended.
           --------------

          "Securities Purchase Agreement" means the Securities Purchase
           -----------------------------
Agreement, dated as of January 23, 1998, by and among the Company, AT&T PCS, the
Cash Equity Investors, the TeleCorp Investors and the Management Stockholders,
as the same may be amended, modified or supplemented in accordance with the
terms thereof.

          "Series C Preferred Stock" has the meaning set forth in Section 2.2.
           ------------------------

          "Stockholders Agreement" means the Stockholders Agreement, by and
           ----------------------
among the Company, AT&T PCS, the Cash Equity Investors, the TeleCorp Investors,
Mercury and the Management Stockholders, in substantially the form of Exhibit G
to the Securities Purchase Agreement, to be dated as of the TeleCorp Closing
Date, as the same may be amended, modified or supplemented in accordance with
the terms thereof.

          "Subsidiary" shall mean, with respect to any Person, a corporation or
           ----------
other entity of which 50% or more of the voting power or the voting equity
securities or equity interest is owned, directly or indirectly, by such Person.

          "TeleCorp Closing" means the closing under the Securities Purchase
           ----------------
Agreement.

          "TeleCorp Investors" means the Persons identified as such in the
           ------------------
Securities Purchase Agreement.

          "TeleCorp Transactions" means the transactions contemplated by the
           ---------------------
Securities Purchase Agreement and the agreements referred to therein.

          "Transactions" means the transactions contemplated by this Agreement
           ------------
and the Stockholders Agreement.

          "Voting Common Stock" has the meaning set forth in Section 2.2.
           -------------------

          "Voting Preference Stock" means the Company's Voting Preference Stock,
           -----------------------
par value $.01 per share.

                                  ARTICLE II

           PURCHASE AND SALE OF LICENSES; PAYMENT OF CONSIDERATION;
           -------------------------------------------------------
                       CERTAIN RESTRICTIONS ON TRANSFER
                       --------------------------------

          2.1  Purchase and Sale of Licenses.  Upon the terms and subject to the
               -----------------------------
conditions hereof and in reliance upon the representations, warranties and
agreements herein
<PAGE>

contained, at the Closing, Mercury shall sell, transfer, assign, convey and
deliver to the Company (or one or more wholly owned Subsidiaries of the Company
designated by the Company), free and clear of all Liens (other than Liens
securing the indebtedness to be assumed by the Company pursuant to Section 2.3),
and the Company agrees to purchase, acquire and accept from Mercury, the Mercury
Licenses.

          2.2  Payment of Consideration.  Upon the terms and subject to the
               ------------------------
conditions hereof and in reliance upon the representations, warranties and
agreements herein contained, at the Closing, in consideration of the assignment
of the Mercury Licenses, the Company shall issue, sell and deliver to Mercury
(i) 2,332.55 shares of Series C Preferred Stock, par value $.01 per share
("Series C Preferred Stock"), of the Company and (ii) 2,269.23 shares of Class A
  ------------------------
Voting Common Stock, par value $.01 per share ("Voting Common Stock"), of the
                                                -------------------
Company, subject in each case to appropriate adjustment in the event of any
stock dividend, stock split or combination, or similar recapitalization, prior
to the Closing affecting the Series C Preferred Stock or the Voting Common
Stock, as applicable.

          2.3  Assumption of Indebtedness.  On and as of the Closing Date, the
               --------------------------
Company shall (a) accept and assume the indebtedness of Mercury to the United
States Department of the Treasury incurred in connection with the acquisition of
the Mercury Licenses and (b) reimburse Mercury for interest actually paid by
Mercury on such indebtedness through the Closing Date.

          2.4  Payment of Certain Expenses.  At the Closing (if any) the Company
               ---------------------------
shall reimburse Mercury, against delivery of customary invoices in reasonable
detail, for its legal fees and related expenses incurred in connection with the
preparation and filing of applications on Form 490 with the FCC necessary to
effect the Mercury License Transfer, provided, that the Company's reimbursement
obligation shall be limited to fees and expenses incurred through the date of
filing of the last of such applications.

          2.5  Restrictive Legends.  Each certificate representing Securities
               -------------------
(including the Securities originally issued hereunder or delivered upon
conversion of the Series C Preferred Stock, or delivered in substitution or
exchange for any of the foregoing) will bear a legend reading substantially as
follows until such Securities have been sold pursuant to an effective
registration statement under the Securities Act, Rule 144 under the Securities
Act, or an opinion of counsel reasonably satisfactory in form and substance to
the Company and otherwise in full compliance with any other applicable
restrictions on transfer, including those contained in this Agreement and the
Stockholders Agreement:


          "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE BEEN
     ACQUIRED FOR INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE
     SECURITIES ACT OF 1933, AS AMENDED (THE 'ACT'), OR UNDER ANY
     STATE SECURITIES OR 'BLUE SKY'
<PAGE>

     LAWS. SAID SECURITIES MAY NOT BE SOLD, TRANSFERRED, ASSIGNED,
     PLEDGED, HYPOTHECATED OR OTHERWISE DISPOSED OF, UNLESS AND UNTIL
     REGISTERED UNDER THE ACT AND THE RULES AND REGULATIONS THEREUNDER
     AND ALL APPLICABLE STATE SECURITIES OR 'BLUE SKY' LAWS OR
     EXEMPTED THEREFROM UNDER THE ACT AND ALL APPLICABLE STATE
     SECURITIES OR 'BLUE SKY' LAWS."

                                  ARTICLE III

                                    CLOSING
                                    -------

          3.1  Time and Place of Closing.  Upon the terms and subject to the
               -------------------------
conditions hereof, the closing of the Transactions (the "Closing") shall take
                                                         -------
place at the offices of Friedman Kaplan & Seiler LLP, 875 Third Avenue, New
York, New York at 10:00 a.m. local time on the twelfth business day following
the date of receipt of the last Consent required by subsections (a) through (c)
of Section 7.1, or at such other place and/or time and/or on such other date as
the parties may agree or as may be necessary to permit the fulfillment or waiver
of the conditions set forth in Article VII (the "Closing Date").
                                                 ------------

          3.2  Closing Actions and Deliveries.  Upon the terms and subject to
               ------------------------------
the satisfaction or waiver by the appropriate party, if applicable, of the
conditions set forth in Article VII, to effect the purchase and sale of the
Mercury Licenses and the issuance of the Securities in consideration therefor,
the parties shall on the Closing Date take the following actions:

          (a)  Assignment of Licenses.  Mercury shall execute and deliver to the
               ----------------------
Company one or more instruments of assignment, substantially in the form of
Exhibit D, sufficient to assign to the Company (or one or more wholly owned
Subsidiaries of the Company designated by the Company) the Mercury Licenses
(such assignment being herein referred to as the "Mercury License Transfer").
                                                  ------------------------

          (b)  Delivery of Securities.  The Company shall deliver to Mercury
               ----------------------
certificates, duly executed by authorized signatories of the Company,
representing the Securities to be issued to Mercury in accordance with the terms
of Section 2.2.

          (c)  Assumption of Indebtedness.  The Company shall (i) execute and
               --------------------------
deliver to Mercury an instrument of assumption, in form and substance reasonably
satisfactory to Mercury, in respect of the indebtedness to be assumed by the
Company pursuant to Section 2.3 and (ii) pay Mercury an amount equal to interest
actually paid by Mercury on such indebtedness through the Closing Date as
evidenced by documentation reasonably satisfactory to the Company.

          (d)  Other Deliveries.  The parties shall execute and deliver or cause
               ----------------
to be
<PAGE>

executed and delivered all other documents, instruments, opinions and
certificates contemplated by this Agreement or the Stockholders Agreement to be
delivered at the Closing or necessary and appropriate in order to consummate the
Transactions contemplated to be consummated on the Closing Date.

          3.3  Payment of Transfer Taxes. The Company shall pay or cause to be
               -------------------------
paid at the Closing or, if due thereafter, promptly when due, all gross receipts
taxes, gains taxes (including, without limitation, real property gains tax or
other similar taxes), transfer taxes, sales taxes, stamp taxes, and any other
taxes, but excluding any Federal, State or local income taxes payable in
connection with the transfer of the Mercury Licenses.


                                  ARTICLE IV

                   REPRESENTATIONS AND WARRANTIES OF MERCURY
                   -----------------------------------------


          Mercury represents and warrants to the Company as follows:

          4.1  Organization, Power and Authority.  (a)  It is a limited
               ---------------------------------
liability company duly organized, validly existing and in good standing under
the laws of its jurisdiction of organization and has the requisite power and
authority to own, lease and operate its properties and to carry on its business
as now being conducted.

          (b)  It has the requisite power and authority to execute, deliver and
perform this Agreement, the Stockholders Agreement and each other instrument,
document, certificate and agreement required or contemplated to be executed,
delivered and performed by it hereunder and thereunder to which it is or will be
a party.

          (c)  It is duly qualified to do business in each jurisdiction where
the character of its properties owned or held under lease or the nature of its
activities makes such qualification necessary other than any such jurisdiction
in which the failure to be so qualified would not have a Material Adverse Effect
on it or materially adversely affect the Transactions or its ability to perform
its obligations under this Agreement and the Stockholders Agreement.

          (d)  The execution and delivery of this Agreement and the Stockholders
Agreement by it and the consummation of the Transactions by it have been duly
and validly authorized by its Board of Directors (or equivalent body) and no
other proceedings on its part which have not been taken (including, without
limitation, approval of its stockholders, partners or members) are necessary to
authorize this Agreement and the Stockholders Agreement or to consummate the
Transactions.

          (e)  This Agreement has been duly executed and delivered by it and
constitutes
<PAGE>

its valid and binding obligation, enforceable against it in accordance with its
terms, except as such enforceability may be limited by bankruptcy, insolvency,
moratorium or other similar laws affecting or relating to enforcement of
creditors' rights generally and may be subject to general principles of equity.
The Stockholders Agreement shall be duly executed and delivered by it at the
Closing and, upon such execution and delivery, shall constitute its valid and
binding obligation, enforceable against it in accordance with its terms, except
as such enforceability may be limited by bankruptcy, insolvency, moratorium or
other similar laws affecting or relating to enforcement of creditors' rights
generally and may be subject to general principles of equity.

          (f)  As of the Closing Date, after giving effect to the Transactions,
it is not in breach of any obligation under this Agreement or the Stockholders
Agreement.

          4.2  Consents; No Conflicts.  Neither the execution, delivery and
               ----------------------
performance by it of this Agreement or the Stockholders Agreement nor the
consummation of the Transactions will (a) conflict with, or result in a breach
or violation of, any provision of its organizational documents; (b) constitute,
with or without the giving of notice or passage of time or both, a breach,
violation or default, create a Lien, or give rise to any right of termination,
modification, cancellation, prepayment or acceleration, under (i) any Law or
License or (ii) any note, bond, mortgage, indenture, lease, agreement or other
instrument, in each case which is applicable to or binding upon it or any of its
assets; or (c) require any Consent, other than those set forth on Schedule 4.2
or the approval of its members, managers or similar constituent bodies, as the
case may be (which approvals have been obtained), except in each case, where
such breach, violation, default, Lien, right, or the failure to obtain or give
such Consent would not have a Material Adverse Effect on it or materially
adversely affect the Transactions or its ability to perform its obligations
under this Agreement. To its knowledge, except as set forth on Schedule 4.2,
there is no fact relating to it or its Affiliates that would be reasonably
expected to prevent it from consummating the Transactions or performing its
obligations under the Stockholders Agreement or disqualify the Company from
obtaining the Consents (including without limitation, FCC Consent) required in
order to consummate the Mercury License Transfer as provided for in this
Agreement.

          4.3  Litigation.  Except as set forth on Schedule 4.3, there is no
               ----------
action, proceeding or investigation pending or, to its knowledge, threatened
against it or any of its properties or assets that would be reasonably expected
to have an adverse effect on its ability to consummate the Transactions or to
fulfill its obligations under this Agreement or the Stockholders Agreement, or
which seeks to prevent or challenge the Transactions.

          4.4  FCC Compliance.  It complies with all eligibility rules issued by
               --------------
the FCC to hold broadband PCS licenses, including without limitation, FCC rules
on foreign ownership and the CMRS spectrum cap. The fact that it owns the
interest in the Company contemplated by this Agreement and the Stockholders
Agreement will not cause the Company or its wholly owned Subsidiaries to be
ineligible under FCC rules to hold PCS licenses in general or the licenses to be
held by the Company's wholly owned Subsidiaries.
<PAGE>

          4.5  Brokers.  It has not employed any broker, finder or investment
               -------
banker or incurred any liability for any brokerage fees, commissions or finder's
fees in connection with the Transactions.

          4.6  Mercury Licenses.  It is the authorized legal holder, free and
               ----------------
clear of any Liens (other than Liens securing the indebtedness to be assumed by
the Company pursuant to Section 2.3), of the Mercury Licenses, true and correct
copies of which are attached to Schedule I. The Mercury Licenses are, and on the
Closing Date each of the Mercury Licenses will be, valid and in full force and
effect. Except as set forth on Schedule 4.6 and for proceedings affecting the
PCS or wireless communications services industry generally, there is not
pending, nor to the knowledge of Mercury, threatened against Mercury or against
the Mercury Licenses, any application, action, petition, objection or other
pleading, or any proceeding with the FCC which questions or contests the
validity of, or seeks the revocation, nonrenewal or suspension of, any of the
Mercury Licenses, which seeks the imposition of any modification or amendment
with respect thereto, or which adversely effects the ability of the Company to
employ the Mercury Licenses in its business after the Closing Date or seeks the
payment of a fine, sanction, penalty, damages or contribution in connection with
the use of any Mercury License. The Mercury Licenses are not subject to any
conditions other than those appearing on the face of the Licenses themselves and
those imposed by FCC Law.

          4.7  No Distribution.  It is acquiring the Securities to be acquired
               ---------------
by it hereunder for the purpose of investment and not with a view to or for sale
in connection with any distribution thereof (other than in compliance with the
Securities Act and all applicable state securities laws).

          4.8  Investor Acknowledgments.  (a)  It is an "accredited investor" as
               ------------------------
defined in Regulation D of the Securities Act.  Its representatives have been
provided an opportunity to ask questions of, and have received answers thereto
from, the Company and its representatives regarding the terms and conditions of
its acquisition of Securities, and the Company and its proposed business
generally, and have obtained all additional information requested by it to
verify the accuracy of all information furnished to it in connection with such
purchase.

          (b)  It has such knowledge and experience in financial and business
affairs that it is capable of evaluating the merits and risks of acquiring the
Securities it is acquiring hereunder.

          (c)  It is not relying on and acknowledges that no representation is
being made by any Purchaser, the Company or any of its officers, employees,
Affiliates, agents or representatives, or any Management Stockholder, except for
representations and warranties expressly set forth in this Agreement and the
Stockholders Agreement, and, in particular, it is not relying on, and
acknowledges that no representation is being made in respect of, (x) any
projections, estimates or budgets delivered to or made available to them of
future revenues, expenses or expenditures, or future results of operations and
(y) any other information or
<PAGE>

documents delivered or made available to it or its representatives, except for
representations and warranties expressly set forth in this Agreement and the
Stockholders Agreement.

          (d)  In deciding to invest in the Company, it has relied exclusively
on the representations and warranties expressly set forth in this Agreement and
the Stockholders Agreement, investigations made by itself and its
representatives and its and such representatives' knowledge of the industry in
which the Company proposes to operate. Based solely on such representations and
warranties and such investigations and knowledge, it has determined that the
Securities it is acquiring are a suitable investment for it.


                                   ARTICLE V

                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY
                 ---------------------------------------------


          The Company represents and warrants to Mercury as follows:

          5.1  Organization, Power and Authority.  (a)  The Company and each of
               ---------------------------------
its Subsidiaries is a corporation, duly organized, validly existing and in good
standing under the laws of the jurisdiction of its incorporation and has the
requisite corporate power and authority to own, lease and operate its properties
and to carry on its business as now being conducted and proposed to be
conducted.  The Company has furnished to Mercury a true and correct copy of  its
and each of its Subsidiaries' Certificate of Incorporation and Bylaws as in
effect on the date hereof and as of the Closing Date.  As of the Closing Date,
the Bylaws of the Company shall read in full as set forth in the Restated
Bylaws, which shall be in full force and effect.

          (b)  It has the requisite corporate power and authority to execute,
deliver and perform this Agreement and the Stockholders Agreement, and each
other instrument, document, certificate and agreement required or contemplated
to be executed, delivered and performed by it hereunder and thereunder to which
it is or will be a party.

          (c)  The Company and each of its Subsidiaries is duly qualified to do
business in each jurisdiction where the character of its properties owned or
held under lease or the nature of its activities makes such qualification
necessary other than any such jurisdiction in which the failure to be so
qualified would not have a Material Adverse Effect on the Company or such
Subsidiary or materially adversely affect the Transactions or its ability to
perform its obligations under this Agreement and the Stockholders Agreement.

          (d)  The execution and delivery of this Agreement by the Company and
the consummation of the Transactions by it have been duly and validly authorized
by its Board of Directors and, except for the filing of the Restated Certificate
with the office of the Secretary of State of Delaware, no other proceedings on
its part which have not been taken (including,
<PAGE>

without limitation, approval of its shareholders) are necessary to authorize
this Agreement or to consummate the Transactions.

          (e)  This Agreement has been duly executed and delivered by the
Company and constitutes its valid and binding obligation, enforceable against it
in accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity. The Stockholders Agreement shall be duly executed and
delivered by the Company at (or prior to) the Closing and, upon such execution
and delivery, shall constitute its valid and binding obligation, enforceable
against it in accordance with its terms, except as such enforceability may be
limited by bankruptcy, insolvency, moratorium or other similar laws affecting or
relating to enforcement of creditors' rights generally and may be subject to
general principles of equity.

          (f)  As of the Closing, after giving effect to the Transactions, the
Company is not in breach of any obligation under this Agreement or the
Stockholders Agreement.

          5.2  Consents; No Conflicts.  Neither the execution, delivery and
               ----------------------
performance by the Company of this Agreement and the Stockholders Agreement nor
the consummation of the Transactions will (a) conflict with, or result in a
breach or violation of, any provision of its organizational documents; (b)
constitute, with or without the giving of notice or passage of time or both, a
breach, violation or default, create a Lien, or give rise to any right of
termination, modification, cancellation, prepayment or acceleration, under (i)
any Law or License, or (ii) any note, bond, mortgage, indenture, lease,
agreement or other instrument, in each case which is applicable to or binding
upon it or any of its assets; or (c) require any Consent on its part, other than
those set forth on Schedule 5.2 or the approval of its Board of Directors (which
approval has been obtained), except in each case where such breach, violation,
default, Lien, right, or the failure to obtain or give such Consent would not
have a Material Adverse Effect on it or materially adversely affect the
Transactions, its ability to perform its obligations under this Agreement or the
Stockholders Agreement or the operation of its business after the Closing Date.
To its knowledge, there is no fact relating to it or its Affiliates that would
be reasonably expected to prevent it from consummating the Transactions or
performing its obligations under this Agreement or the Stockholders Agreement or
disqualify the Company from obtaining the Consents (including without
limitation, FCC Consent) required in order to consummate the Mercury License
Transfer as provided for in this Agreement.

          5.3  Litigation.  There is no action, proceeding or investigation
               ----------
pending or, to the Company's knowledge, threatened against it or any of its
properties or assets that would have an adverse effect on its ability to
consummate the Transactions or to fulfill its obligations under this Agreement
or the Stockholders Agreement, or to operate its business after the Closing
Date, or which seeks to prevent or challenge the Transactions.  There is no
judgment, decree, injunction, rule or order outstanding against the Company
which would limit in any material respect its ability to operate its business in
the manner currently contemplated.
<PAGE>

          5.4  FCC Compliance.  It complies with all eligibility rules issued by
               --------------
the FCC to hold broadband PCS licenses, including without limitation, FCC rules
on foreign ownership and the CMRS spectrum cap.

          5.5  Brokers.  The Company has not employed any broker, finder or
               -------
investment banker or incurred any liability for any brokerage fees, commissions
or finder's fees in connection with the Transactions.

          5.6  Capitalization.  (a)  As of the date hereof and as of the
               --------------
TeleCorp Closing Date before giving effect to the filing of the Restated
Certificate, the authorized capital stock of  the Company consists of 20,000
shares of common stock, no par value per share ("Old Common Stock"), of which
                                                 ----------------
ten shares are issued and outstanding, have been validly issued and are fully
paid and non-assessable.  As of the date hereof and as of the TeleCorp Closing
Date before giving effect to the Transactions, each of Gerald T. Vento and
Thomas H. Sullivan owns beneficially and of record five shares of Old Common
Stock, free and clear of any Liens.  There are not on the date hereof nor will
there be on or as of the TeleCorp Closing Date, before giving effect to the
TeleCorp Transactions, any existing options, warrants, calls, subscriptions, or
other rights, or other agreements or commitments, obligating the Company to
issue, transfer or sell any shares of capital stock of  the Company.

          (b)  As of the TeleCorp Closing Date, after giving effect to the
filing of the Restated Certificate, the authorized capital stock of the Company
will consist of 700,000 shares of Voting Common Stock, 700,000 shares of Non-
Voting Common Stock, ten shares of Voting Preference Stock, 1,000 shares of
Class C Common Stock, 3,000 shares of Class D Common Stock, 70,000 shares of
Series A Preferred Stock, 140,000 shares of Series B Preferred Stock, 140,000
shares of Series C Preferred Stock, 35,000 shares of Series D Preferred Stock,
20,000 shares of Series E Preferred Stock, 35,000 shares of Series F Preferred
Stock and 70,000 shares of Senior Common Stock. As of the TeleCorp Closing Date,
after giving effect to the TeleCorp Transactions, there will be issued and
outstanding the shares of Preferred Stock and Common Stock set forth on Schedule
V to the Securities Purchase Agreement. The record and beneficial owners of such
outstanding shares of Common Stock and Preferred Stock, as of the TeleCorp
Closing Date, after giving effect to the TeleCorp Transactions, are set forth on
Schedule V to the Securities Purchase Agreement. On the TeleCorp Closing Date,
after giving effect to the TeleCorp Transactions, there will not be any existing
options, warrants, calls, subscriptions, or other rights, or other agreements or
commitments, obligating the Company to issue, transfer or sell any shares of
capital stock of the Company, except the Preferred Stock and the Common Stock
(other than the Voting Preference Stock).

          (c)  On the Closing Date, after giving effect to the Transactions, the
outstanding capital stock of the Company will be as set forth in the second
sentence of paragraph (b) above, except for such changes that do not have a
material adverse effect on the financial value of the Securities.
<PAGE>

          5.7  Shares.  The Securities being issued to Mercury hereunder, when
               ------
issued and paid for pursuant to the terms of this Agreement, will be duly
authorized, validly issued, fully paid and nonassessable, and will be free of
any Liens caused or created by the Company, except as set forth in the
Stockholders Agreement and the Restated Certificate.  The shares of Common Stock
issued upon conversion of the Series C Preferred Stock, when issued pursuant to
the terms of the Series C Preferred Stock, will be validly issued, fully paid
and nonassessable, and will be free of any Liens caused or created by the
Company, except as set forth in the Stockholders Agreement and the Restated
Certificate.

          5.8  Offering of Securities.  (a)  Neither the Company nor any Person
               ----------------------
acting on its behalf has offered the Securities or any similar equity securities
of the Company for sale to, or solicited any offers to buy Securities or any
similar equity securities of the Company from, any Person, other than the
Purchasers and a limited number of other "accredited investors" (as defined in
Rule 501(a) under the Securities Act).

          (b)  Neither the Company nor any Person acting on its behalf will,
directly or indirectly, take any action which might subject the offering,
issuance or sale of the Securities to the registration and prospectus delivery
requirements of Section 5 of the Securities Act.

          (c)  Assuming the accuracy of the representations and warranties of
Mercury contained in Sections 4.7 and 4.8, each of the offering and sale of
Securities under this Agreement to Mercury complies with all applicable
requirements of federal and state securities laws.

          5.9  Securities Purchase Agreement.  The Company has furnished to
               -----------------------------
Mercury a true and complete copy of each of the Securities Purchase Agreement
as in effect on the date hereof.


                                  ARTICLE VI

                                   COVENANTS
                                   ---------


          6.1  Consummation of Transactions.  Each party shall use all
               ----------------------------
commercially reasonable efforts to take, or cause to be taken, all actions, and
to do, or cause to be done, all things necessary, proper or advisable and
consistent with applicable law to carry out all of their respective obligations
under this Agreement and the Stockholders Agreement to consummate the
Transactions, which efforts shall include, without limitation, the following:

          (a)  The parties shall use all commercially reasonable efforts to
cause the Closing to occur and the Transactions to be consummated in accordance
with the terms hereof, and, without limiting the generality of the foregoing, to
obtain all necessary Consents including, without limitation, the approval of
this Agreement and the Transactions by all Governmental
<PAGE>

Authorities and agencies, including the FCC, and make all filings with and to
give all notices to third parties which may be necessary or reasonably required
in order for the parties to consummate the Transactions; provided that Mercury
shall not make any filings with the FCC regarding the Mercury Licenses without
the prior review and approval of the Company.

          (b)  Each party shall furnish to the other parties all information
concerning such party and its Affiliates reasonably required for inclusion in
any application or filing to be made by Mercury or the Company or any other
party in connection with the Transactions or otherwise to determine compliance
with applicable FCC Rules.

          (c)  Upon the request of any other party, each party shall forthwith
execute and deliver, or cause to be executed and delivered, such further
instruments of assignment, transfer, conveyance, endorsement, direction or
authorization and other documents as may reasonably be requested by such party
in order to effectuate the purposes of this Agreement and the Stockholders
Agreement.

          Nothing in this Agreement shall be construed to require the parties to
consummate the Closing if any regulatory approval would require that it (i)
divest or hold separate any of its assets existing as of the date hereof other
than as contemplated by this Agreement and the Stockholders Agreement or (ii)
otherwise take or commit to take any action that limits its freedom of action in
any material respect with respect to any of its businesses, product lines or
assets.

          6.2  Confidentiality.
               ---------------

          (a)  Each party shall, and shall cause each of its Affiliates, and its
and their respective shareholders, members, managers, directors, officers,
employees and agents (collectively, "Representatives") to, keep secret and
                                     ---------------
retain in strictest confidence any and all Confidential Information relating to
any other party that it receives in connection with the negotiation or
performance of this Agreement, and shall not disclose such Confidential
Information, and shall cause its Representatives not to disclose such
Confidential Information, to anyone except the receiving party's  Affiliates and
Representatives and any other Person that agrees in writing to keep in
confidence all Confidential Information in accordance with the terms of this
Section 6.2.  Until the Closing, each party agrees to use Confidential
Information received from another party only (i) to evaluate its interest in
pursuing the Transactions and (ii) to pursue such Transactions, but not for any
other purpose.  All Confidential Information furnished pursuant to this
Agreement shall be returned promptly to the party to whom it belongs upon
request by such party.  Upon the Closing, the provisions of this Section 6.2
shall terminate and the obligations of the parties in respect of Confidential
Information shall be governed by Section 7.12 of the Stockholders Agreement.

          (b)  The obligations set forth in Section 6.2(a) shall be inoperative
with respect to Confidential Information that (i) is or becomes generally
available to the public other than as a
<PAGE>

result of disclosure by the receiving party or its Representatives, (ii) was
available to the receiving party on a non-confidential basis prior to its
disclosure to the receiving party, or (iii) becomes available to the receiving
party on a non-confidential basis from a source other than the providing party
or its agents, provided that such source is not known by the receiving party to
be bound by a confidentiality agreement with the providing party or the
providing party's agents.

          (c)  To the fullest extent permitted by law, if a party or any of its
Affiliates or Representatives breaches, or threatens to commit a breach of, this
Section 6.2, the party whose Confidential Information shall be disclosed, or
threatened to be disclosed, shall have the right and remedy to have this Section
6.2 specifically enforced by any court having jurisdiction, it being
acknowledged and agreed that money damages will not provide an adequate remedy
to such party.  Nothing in this Section 6.2 shall be construed to limit the
right of any party to collect money damages in the event of breach of this
Section 6.2.

          (d)  Anything else in this Agreement or the Stockholders Agreement
notwithstanding, each party shall have the right to disclose any information,
including Confidential Information of the other party or such other party's
Affiliates, in any filing with any regulatory agency, court or other authority
or any disclosure to a trustee of public debt of a party to the extent that the
disclosing party determines in good faith that it is required by Law, regulation
or the terms of such debt to do so, provided that any such disclosure shall be
as limited in scope as possible and shall be made only after giving the other
party as much notice as practicable of such required disclosure and an
opportunity to contest such disclosure if possible.

          6.3  Certain Covenants.  From and after the execution and delivery of
               -----------------
this Agreement to and including the Closing Date, Mercury shall:

          (a)  Comply in all material respects with all applicable Laws,
including all such Laws relating to the Mercury Licenses or their use;

          (b)  Use commercially reasonable efforts to maintain the Mercury
Licenses in full force and effect;

          (c)  Not (i) sell, transfer, assign or dispose of, or offer to, or
enter into any agreement, arrangement or understanding to, sell, transfer,
assign or dispose of any of the Mercury Licenses or any interest therein, or
negotiate therefor, or (ii) create, incur or suffer to exist any Lien of any
nature whatsoever relating to any of the Mercury Licenses or any interest
therein (other than Liens securing the indebtedness to be assumed by the Company
pursuant to Section 2.3).  Without limiting the foregoing, Mercury shall not
incur any material obligation or liability, absolute or contingent, relating to
or affecting the Mercury Licenses or their use;

          (d)  Give written notice to the other parties promptly upon the
commencement of, or upon obtaining knowledge of any facts that would give rise
to a threat of, any claim, action or proceeding commenced against or relating to
(i) it, its properties or assets, including the
<PAGE>

Mercury Licenses or their use, and which could have a Material Adverse Effect on
it or materially adversely affect the Transactions, or (ii) the Mercury Licenses
or their use;

          (e)  Promptly after obtaining knowledge of the occurrence of, or the
impending or threatened occurrence of, any event which could cause or constitute
a material breach of any of its warranties, representations, covenants or
agreements contained in this Agreement, give notice in writing of such event, or
occurrence or impending or threatened event or occurrence, to the other parties
and use commercially reasonable efforts to prevent or to promptly remedy such
breach; and

          (f)  Cause the other parties to be advised promptly in writing of (i)
any event, condition or state of facts known to it, which has had or could have
a Material Adverse Effect on it, or materially adversely affect the Mercury
Licenses or their use or the Transactions (other than proceedings affecting the
PCS or wireless communications services industry generally), or (ii) any claim,
action or proceeding which seeks to enjoin the consummation of the Transactions.

                                  ARTICLE VII

                               CLOSING CONDITIONS
                               ------------------


          7.1  Conditions to Obligations of All Parties.  The obligation of each
               ----------------------------------------
of the parties to consummate the Transactions contemplated to occur at the
Closing shall be conditioned on the following, unless waived by each of the
parties:

          (a)  Any applicable waiting period under the HSR Act shall have
expired or been terminated.

          (b)  The Consent of the FCC to the Mercury License Transfer shall have
been obtained pursuant to a Final Order, free of any conditions materially
adverse to the Company or Mercury, other than those applicable to the PCS or
wireless communications services industry generally.  For the purposes of this
paragraph, "Final Order" means an action or decision that has been granted by
            -----------
the FCC as to which (i) no request for a stay or similar request is pending, no
stay is in effect, the action or decision has not been vacated, reversed, set
aside, annulled or suspended and any deadline for filing such request that may
be designated by statute or regulation has passed, (ii) no petition for
rehearing or reconsideration or application for review is pending and the time
for the filing of any such petition or application has passed, (iii) the FCC
does not have the action or decision under reconsideration on its own motion and
the time within which it may effect such reconsideration has passed and (iv) no
appeal is pending including other administrative or judicial review, or in
effect and any deadline for filing any such appeal that may be designated by
statute or rule has passed.

          (c)  All Consents by any Governmental Authority (other than the
Consents
<PAGE>

referred to in paragraphs (a) and (b) above) required to permit the consummation
of the Transactions, the failure to obtain or make which would be reasonably
expected to have a Material Adverse Effect on the Company or Mercury or to
materially adversely affect the Transactions or its ability to perform its
obligations under this Agreement shall have been obtained or made.

          (d)  No preliminary or permanent injunction or other order, decree or
ruling issued by a Governmental Authority, nor any statute, rule, regulation or
executive order promulgated or enacted by any Governmental Authority, shall be
in effect that would (i) impose material limitations on the ability of any party
to consummate the Transactions or prohibit such consummation, or (ii) impair in
any material respect the operation of the Company.

          (e)  The TeleCorp Closing shall have occurred prior to or shall occur
concurrently with the Closing hereunder.

          7.2  Conditions to Obligations of the Company.  The obligation of the
               ----------------------------------------
Company to consummate the Transactions contemplated to occur at the Closing
shall be further conditioned upon the satisfaction or fulfillment, at or prior
to the Closing, of the following conditions by each of the other parties, unless
waived by the Company:

          (a)  The representations and warranties of Mercury contained herein
and in the Stockholders Agreement shall be true and correct in all material
respects (except for representations and warranties that are qualified as to
materiality, which shall be true and correct), in each case when made and at and
as of the Closing (except for representations and warranties made as of a
specified date, which shall be true and correct as of such date) with the same
force and effect as though made at and as of such time, except for inaccuracies
in respect of the representations and warranties set forth in Section 4.3 and
the third sentence of Section 4.6 (disregarding any qualifications as to
materiality contained therein) that in the aggregate would not be reasonably
expected to have a Material Adverse Effect on Mercury or its ability to perform
its obligations under this Agreement or the Stockholders Agreement or to
materially adversely affect the Transactions.

          (b)  Mercury shall have performed in all material respects all
agreements contained herein and in the Stockholders Agreement required to be
performed by it at or before the Closing.

          (c)  An officer of Mercury shall have delivered to the Company a
certificate, dated the Closing Date, certifying as to the fulfillment of the
conditions set forth in paragraphs (a) and (b) above as to Mercury.

          (d)  Mercury shall have furnished the Company with opinions of
counsel, each dated the Closing Date, in substantially the forms of Exhibits A
and B.
<PAGE>

          (e)  All corporate and other proceedings of Mercury in connection with
the Mercury License Transfer and the other Transactions, and all documents and
instruments incident thereto, shall be reasonably satisfactory in form and
substance to the Company, and Mercury shall have delivered to the Company such
receipts, documents, instruments and certificates, in form and substance
reasonably satisfactory to the Company, which the Company shall have reasonably
requested.

          (f)  Mercury shall have executed and delivered to the Company a
counterpart signature page to the Stockholders Agreement.

          (g)  Mercury shall have executed and delivered to the other parties
thereto a counterpart signature page to the Investors Stockholders Agreement
among the Cash Equity Investors.

          7.3  Conditions to the Obligations of Mercury.  The obligation of
               ----------------------------------------
Mercury to consummate the Transactions contemplated to occur at the Closing
shall be further conditioned upon the satisfaction or fulfillment, at or prior
to the Closing, of the following conditions, unless waived by Mercury:

          (a)  The representations and warranties of the Company contained
herein shall be true and correct in all material respects (except for
representations and warranties that are qualified as to materiality, which shall
be true and correct), in each case when made and at and as of the Closing
(except for representations and warranties made as of a specified date, which
shall be true and correct as of such date) with the same force and effect as
though made at and as of such time, except for inaccuracies in respect of the
representations and warranties set forth in Section 5.3 (disregarding any
qualifications as to materiality contained therein) that in the aggregate would
not be reasonably expected to have a Material Adverse Effect on the Company or
its ability to perform its obligations under this Agreement or to materially
adversely affect the Transactions.

          (b)  The Company shall have performed in all material respects all
agreements contained herein required to be performed by it at or before the
Closing.

          (c)  An officer of the Company shall have delivered to Mercury a
certificate, dated the Closing Date, certifying as to the fulfillment of the
conditions set forth in paragraphs (a) and (b) above as to the Company.

          (d)  The Company shall have furnished Mercury with an opinion of
counsel, dated the Closing Date, in substantially the form of Exhibit C.

          (e)  All corporate and other proceedings of the Company in connection
with the Mercury License Transfer and the other Transactions, and all documents
and instruments incident thereto, shall be reasonably satisfactory in form and
substance to Mercury, and the
<PAGE>

Company shall have delivered to Mercury such receipts, documents, instruments
and certificates, in form and substance reasonably satisfactory to Mercury,
which Mercury shall have reasonably requested.

          (f)  The Stockholders Agreement shall have been amended in accordance
with the terms thereof to provide that (i) Mercury shall, in addition to its
rights and obligations as a Stockholder thereunder, have the rights and
obligations of a Cash Equity Investor thereunder, (ii) William M. Mounger, II
and E.B. Martin, Jr. shall not be deemed to be in violation of Section 8.6 of
the Stockholders Agreement by reason of their respective interests in
Mississippi-34 Cellular Corporation on the date hereof or the activities of such
entity as being conducted on date hereof and (iii) and William M. Mounger, II,
Jerry M. Sullivan, Jr. and E.B. Martin, Jr. shall not be deemed to be in
violation of Section 8.6 of the Stockholders Agreement by reason of their
respective interests in Mercury Wireless Management Inc. (which owns certain
IVDS Licenses covering the Jackson, Mississippi MSA) on the date hereof or the
activities of such entity as being conducted on date hereof.


                                 ARTICLE VIII
                                 ------------

                         SURVIVAL AND INDEMNIFICATION
                         ----------------------------


          8.1  Survival.  The representations and warranties made in this
               --------
Agreement shall survive the Closing until the second anniversary thereof and
shall thereupon expire together with any right to indemnification in respect
thereof (except to the extent a written notice asserting a claim for breach of
any such representation or warranty and describing such claim in reasonable
detail shall have been given prior to such date to the party which made such
representation or warranty).  The covenants and agreements contained herein to
be performed or complied with prior to the Closing shall expire at the Closing.
The covenants and agreements contained in this Agreement to be performed or
complied with after the Closing shall survive the Closing; provided that the
right to indemnification pursuant to this Article VIII in respect of a breach of
a representation or warranty shall expire on the second anniversary of the
Closing (except to the extent written notice asserting a claim thereunder and
describing such claim in reasonable detail shall have been given prior to such
date to the party from whom such indemnification is sought).  After the Closing,
the sole and exclusive remedy of the parties for any breach or inaccuracy of any
representation or warranty contained in this Agreement, or any other claim
(whether or not alleging a breach of this Agreement) that arises out of the
facts and circumstances constituting such breach or inaccuracy, shall be the
indemnity provided in this Article VIII.

          8.2  Indemnification by Mercury.  Mercury shall indemnify and hold
               --------------------------
harmless the Company and its Affiliates, and the shareholders, members,
managers, officers, employees, agents and/or the legal representatives of any of
them (each, a "Section 8.2 Indemnified Party"),
               -----------------------------
<PAGE>

against all liabilities and expenses (including amounts paid in satisfaction of
judgments, in compromise, as fines and penalties, and as counsel fees)
(collectively, "Losses") incurred by him or it in connection with the
investigation, defense, or disposition of any action, suit or other proceeding
in which any Section 8.2 Indemnified Party may be involved or with which he or
it may be threatened that arises out of or results from (a) any representation
or warranty of such indemnifying party contained in this Agreement or in the
Stockholders Agreement being untrue in any material respect as of the date on
which it was made, (b) any of the matters referred to on Schedules 4.2, 4.3 or
4.6 or (c) any material default by such indemnifying party or any of its
Affiliates in the performance of their respective obligations under this
Agreement and the Stockholders Agreement, except to the extent (but only to the
extent) any such Losses arise out of or result from the gross negligence or
willful misconduct of such Section 8.2 Indemnified Party or its Affiliates.

          8.3  Indemnification by the Company.  The Company shall indemnify and
               ------------------------------
hold harmless Mercury and its Affiliates, and the shareholders, members,
managers, officers, employees, agents and/or the legal representatives of any of
them (each, a "Section 8.3 Indemnified Party"), against all Losses incurred by
               -----------------------------
him or it in connection with the investigation, defense, or disposition of any
action, suit or other proceeding in which any Section 8.3 Indemnified Party may
be involved or with which he or it may be threatened that arises out of or
results from (a) any representation or warranty of the Company contained in this
Agreement and the Stockholders Agreement being untrue in any material respect as
of the date on which it was made or (b) any material default by the Company or
any of its Affiliates in the performance of their respective obligations under
this Agreement or in the Stockholders Agreement, except to the extent (but only
to the extent) any such Losses arise out of or result from the gross negligence
or willful misconduct of such Section 8.3 Indemnified Party or its Affiliates.

          8.4  Procedures.
               ----------

          (a)  The terms of this Section 8.4 shall apply to any claim (a

"Claim") for indemnification under the terms of Sections 8.2 or 8.3. The Section
 -----
8.2 Indemnified Party or Section 8.3 Indemnified Party Indemnified Party (each,
an "Indemnified Party"), as the case may be, shall give prompt written notice of
    -----------------
such Claim to the indemnifying party (the "Indemnifying Party") under the
                                           ------------------
applicable Section, which party may assume the defense thereof, provided that
any delay or failure to so notify the Indemnifying Party shall relieve the
Indemnifying Party of its obligations hereunder only to the extent, if at all,
that it is materially prejudiced by reason of such delay or failure. The
Indemnified Party shall have the right to approve any counsel selected by the
Indemnifying Party and to approve the terms of any proposed settlement, such
approval not to be unreasonably delayed or withheld (unless such settlement
provides only, as to the Indemnified Party, the payment of money damages
actually paid by the Indemnifying Party and a complete release of the
Indemnified Party in respect of the claim in question). Notwithstanding any of
the foregoing to the contrary, the provisions of this Article VIII shall not be
construed so as to provide for the indemnification of any Indemnified Party for
any liability to the extent (but
<PAGE>

only to the extent) that such indemnification would be in violation of
applicable law or that such liability may not be waived, modified or limited
under applicable law, but shall be construed so as to effectuate the provisions
of this Article VIII to the fullest extent permitted by law.

          (b)  In the event that the Indemnifying Party undertakes the defense
of any Claim, the Indemnifying Party will keep the Indemnified Party advised as
to all material developments in connection with such Claim, including, but not
limited to, promptly furnishing the Indemnified Party with copies of all
material documents filed or served in connection therewith.

          (c)  In the event that the Indemnifying Party fails to assume the
defense of any Claim within ten business days after receiving written notice
thereof, the Indemnified Party shall have the right, subject to the Indemnifying
Party's right to assume the defense pursuant to the provisions of this Article
VIII, to undertake the defense, compromise or settlement of such Claim for the
account of the Indemnifying Party.  Unless and until the Indemnified Party
assumes the defense of any Claim, the Indemnifying Party shall advance to the
Indemnified Party any of its reasonable attorneys' fees and other costs and
expenses incurred in connection with the defense of any such action or
proceeding.  Each Indemnified Party shall agree in writing prior to any such
advancement that, in the event he or it receives any such advance, such
Indemnified Party shall reimburse the Indemnifying Party for such fees, costs
and expenses to the extent that it shall be determined that he or it was not
entitled to indemnification under this Article VIII.

          (d)  In no event shall an Indemnifying Party be required to pay in
connection with any Claim for more than one firm of counsel (and local counsel)
for each of the following groups of Indemnified Parties:  (i) Mercury, its
Affiliates, and the shareholders, members, managers, officers, employees, agents
and/or the legal representatives of any of them; and (ii) the Company and its
Affiliates, and the shareholders, members, managers, officers, employees, agents
and/or the legal representatives of any of them.

          8.5  Registration Rights.  Notwithstanding anything to the contrary in
               -------------------
this Article VIII, the indemnification and contribution provisions set forth in
Sections 5(e) and 5(f) of the Stockholders Agreement shall govern any claim made
with respect to the registration statements filed pursuant to Section 5 of the
Stockholders Agreement or sales made thereunder.


                                   ARTICLE IX

                                  TERMINATION
                                  -----------


          9.1  Termination.  This Agreement may be terminated, and the
               -----------
Transactions abandoned, without further obligation of any party, except as set
forth herein, at any time prior to the Closing Date:
<PAGE>

          (a)  by mutual written consent of the parties;

          (b)  by any party by written notice to the other parties, if the
Closing shall not have occurred on or before the date that is two years after
the date hereof, provided that the party electing to exercise such right is not
otherwise in breach of its obligations under this Agreement; or

          (c)  by any party by written notice to the other parties, if the
consummation of the Transactions shall be prohibited by a final, non-appealable
order, decree or injunction of a court of competent jurisdiction.

          9.2  Effect of Termination.  (a)  In the event of a termination of
               ---------------------
this Agreement, no party hereto shall have any liability or further obligation
to any other party to this Agreement, except as set forth in paragraph (b)
below, and except that nothing herein will relieve any party from liability for
any breach by such party of this Agreement.

          (b)  In the event of a termination of this Agreement pursuant to
Section 9.1, all provisions of this Agreement shall terminate, except Section
6.2 and Articles VIII and X.

          (c)  Whether or not the Closing occurs, all costs and expenses
incurred in connection with this Agreement and the Transactions shall be paid by
the party incurring such expenses, except as otherwise provided in Section 2.4.


                                   ARTICLE X

                           MISCELLANEOUS PROVISIONS
                           ------------------------


          10.1  Amendment and Modification.  This Agreement may be amended,
                --------------------------
modified or supplemented only by written agreement of each of the parties.

          10.2  Waiver of Compliance; Consents.  Any failure of any of the
                ------------------------------
parties to comply with any obligation, covenant, agreement or condition herein
may be waived by the party or parties entitled to the benefits thereof only by a
written instrument signed by the party granting such waiver, but such waiver or
failure to insist upon strict compliance with such obligation, covenant,
agreement or condition shall not operate as a waiver of, or estoppel with
respect to, any subsequent or other failure.  Whenever this Agreement requires
or permits consent by or on behalf of any party hereto, such consent shall be
given in writing in a manner consistent with the requirement for a waiver of
compliance as set forth in this Section 10.2.

          10.3  Notices.  All notices or other communications hereunder shall be
                -------
in writing and shall be given (and shall be deemed to have been duly given upon
receipt) by
<PAGE>

delivery in person, by facsimile transmission, or by registered or certified
mail (return receipt requested), postage prepaid, with an acknowledgment of
receipt signed by the addressee or an authorized representative thereof,
addressed as follows (or to such other address for a party as shall be specified
by like notice; provided that notice of a change of address shall be effective
only upon receipt thereof):


          If to Mercury:

                Mercury PCS II, LLC
                1410 Livingston Lane
                Jackson, MS 39213-8003
                Attn:  William M. Mounger, II
                Fax: (601) 362-2664

          With a copy to:

                Young, Williams, Henderson & Fuselier, P.A.
                2000 Deposit Guaranty Plaza
                Jackson, MS 39201
                P.O. Box 23059
                Jackson, MS 39225-3059
                Attn:  James H. Neeld, IV, Esq.
                Fax: (601) 355-6136

          If to the Company:

                TeleCorp PCS, Inc.
                1110 N. Glebe Road, Suite 300
                Arlington, Virginia  22201
                Attn:  General Counsel
                Facsimile: (703) 522-4873

With a copy to each other party to the Securities Purchase Agreement sent to the
addresses set forth in Section 10.3 thereof.

          10.4  Parties in Interest; Assignment.  This Agreement is binding upon
                -------------------------------
and is solely for the benefit of the parties hereto and their respective
permitted successors, legal representatives and permitted assigns.  Neither
party may assign its rights and obligations hereunder without the prior written
consent of the other party, except that the Company shall have the right to
assign its rights under this Agreement to the lenders (the "Lenders") named in
                                                            -------
the Credit Agreement, as security pursuant to the terms of the Credit Documents
(as such terms
<PAGE>

are defined in the Securities Purchase Agreement), it being understood that, in
connection with any such assignment to the Lenders, the Lenders shall not assume
any obligations of the Company hereunder.

          10.5   Applicable Law.  This Agreement shall be governed by and
                 --------------
construed in accordance with the laws of the State of New York without giving
effect to the conflicts of law principles thereof.  The parties hereto hereby
irrevocably and unconditionally consent to submit to the non-exclusive
jurisdiction of the courts of the State of New York and of the United States of
America located in the County of New York, New York (the "New York Courts") for
                                                          ---------------
any litigation arising out of or relating to this Agreement and the
Transactions, waive any objection to the laying of venue of any such litigation
in the New York Courts and agrees not to plead or claim in any New York Court
that such litigation brought therein has been brought in an inconvenient forum.

          10.6   Counterparts.  This Agreement may be executed in two or more
                 ------------
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

          10.7   Interpretation.  The article and section headings contained in
                 --------------
this Agreement are for convenience of reference only, are not part of the
agreement of the parties and shall not affect in any way the meaning or
interpretation of this Agreement.  All pronouns and any variations thereof shall
be deemed to refer to the masculine, feminine or neuter, singular or plural, as
the identity of the antecedent Person or Person may require.

          10.8   Entire Agreement.  This Agreement and the Stockholders
                 ----------------
Agreement, including the exhibits and schedules hereto and the certificates and
instruments delivered pursuant to the terms of this Agreement and the
Stockholders Agreement, embody the entire agreement and understanding of the
parties hereto in respect of the Transactions. There are no restrictions,
promises, representations, warranties, covenants or undertakings, other than
those expressly set forth or referred to herein or in the Stockholders
Agreement. This Agreement and the Stockholders Agreement supersede all prior
agreements and understandings between the parties with respect to such
Transactions.

          10.9   Publicity.  So long as this Agreement is in effect, the parties
                 ---------
agree to consult with each other in issuing any press release or otherwise
making any public statement with respect to the Transactions, and no party shall
issue any press release or make any such public statement prior to such
consultation, except as may be required by Law.  No press release or other
public statement by the parties hereto shall disclose any of the financial terms
of the Transactions without the prior consent of the other parties, except as
may be required by Law.  A breach of the provisions of this Section 10.9 by a
party shall not give rise to any right to terminate this Agreement.

          10.10  Specific Performance.  The parties hereto agree that
                 --------------------
irreparable damage
<PAGE>

would occur in the event that any of the provisions of this Agreement were not
performed in accordance with their specific terms or were otherwise breached. It
is accordingly agreed that the parties shall be entitled to an injunction or
injunctions to prevent breaches of this Agreement and to enforce specifically
the terms and provisions hereof in any New York Courts.

          10.11  Remedies Cumulative.  All rights, powers and remedies provided
                 -------------------
under this Agreement or otherwise available in respect hereof at law or in
equity shall be cumulative and not alternative, and the exercise or beginning of
the exercise of any thereof by any party shall not preclude the simultaneous or
later exercise of any other such right, power or remedy by such party.


          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first above written.

                              TELECORP PCS, INC.


                              By: /s/ Thomas H. Sullivan
                                  ------------------------------
                                Name: Thomas H. Sullivan
                                Title: Executive Vice President


                              MERCURY PCS II, LLC


                              By: /s/ E. B. Martin, Jr.
                                  ------------------------------
                                Name: E. B. Martin, Jr.
                                Title: V. P. of MSM, Inc., Manager
<PAGE>

                                                                      SCHEDULE I

                               MERCURY LICENSES
                               ----------------


<TABLE>
<CAPTION>
- -----------------------------------------------------------------------
          BTA               BLOCK                  MARKET
- -----------------------------------------------------------------------
<S>                         <C>             <C>
         B032                 F                  Baton Rouge
- -----------------------------------------------------------------------
         B180                 F                    Hammond
- -----------------------------------------------------------------------
         B195                 F               Houma-Thibodeaux
- -----------------------------------------------------------------------
         B236                 F             Lafayette-New Iberia
- -----------------------------------------------------------------------
</TABLE>
<PAGE>

                           United States of America
                       Federal Communications Commission

                          RADIO STATION AUTHORIZATION

                       Commercial Mobile Radio Services
[STAMP APPEARS    Personal Communications Service - Broadband
   HERE]
                                                          Call Sign:  KNLG906
                                                          Market:  B032
                                                              BATON ROUGE, LA

MERCURY PCS II, LLC
1410 LIVINGSTON LANE                                       Channel Block: F
JACKSON, MS 39213

                                                       File Number:01284-CW-L-97


- --------------------------------------------------------------------------------
The licensee hereof is authorized, for the period indicated, to construct and
operate radio transmitting facilities in accordance with the terms and
conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory and all pertinent rules and regulations of the Federal Communications
Commission contained in the Title 47 of the U.S. Code of Federal Regulations.
- --------------------------------------------------------------------------------

     Initial Grant Date.........................  August 21, 1997

     Five-year Build Out Date...................  August 21, 2002

     Expiration Date............................  August 21, 2007

- --------------------------------------------------------------------------------
CONDITIONS
- ----------
Pursuant to Section 309(h) of the Communications Act of 1934, as amended, (47
U.S.C. (S) 309(h)), this license is subject to the following conditions: This
license does not vest in the licensee any right to operate a station nor any
right in the use of frequencies beyond the term thereof nor in any other manner
than authorized herein. Neither this license nor the right granted thereunder
shall be assigned or otherwise transferred in violation of the Communications
Act of 1934, as amended (47 U.S.C. (S) 151, et seq.). This license is subject in
terms to the right of use or control conferred by Section 706 of the
Communications Act of 1934, as amended (47 U.S.C. (S) 606).

Conditions continued on Page 2.

- --------------------------------------------------------------------------------

WAIVERS :
- -------
No waivers associated with this authorization.




- --------------------------------------------------------------------------------
<PAGE>

KNLG906                     MERCURY PCS II, LLC                   01284-CW-L-97



CONDITIONS:


This authorization is subject to the condition that, in the event that systems
using the same frequencies as granted herein are authorized in an adjacent
foreign territory (Canada/United States), future coordination of any base
station transmitters within 72 km (45 miles) of the United States/Canada border
shall be required to eliminate any harmful interference to operations in the
adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.


This authorization is conditioned upon the full and timely payment of all monies
due pursuant to Sections 1.2110 and 24.716 of the Commission's Rules and the
terms of the Commission's installment plan as set forth in the Note and Security
Agreement executed by the licensee. Failure to comply with this condition will
result in the automatic cancellation of this authorization.


- --------------------------------------------------------------------------------
<PAGE>

                            United States of America
                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION


                        Commercial Mobile Radio Services
[STAMP APPEARS    Personal Communications Service - Broadband
    HERE]

                                                       Call Sign:  KNLG917
                                                       Market:  B180
                                                               HAMMOND, LA
MERCURY PCS II, LLC
1410 LIVINGSTON LANE                                       Channel Block: F
JACKSON, MS 39213

                                                      File Number:01295-CW-L-97

- --------------------------------------------------------------------------------
The licensee hereof is authorized, for the period indicated, to construct and
operate radio transmitting facilities in accordance with the terms and
conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory and all pertinent rules and regulations of the Federal Communications
Commission contained in the Title 47 of the U.S. Code of Federal Regulations.
- --------------------------------------------------------------------------------

     Initial Grant Date.........................  August 21, 1997

     Five-year Build Out Date...................  August 21, 2002

     Expiration Date............................  August 21, 2007

- --------------------------------------------------------------------------------
CONDITIONS
- ----------
Pursuant to Section 309(h) of the Communications Act of 1934, as amended, (47
U.S.C. (S) 309(h)), this license is subject to the following conditions: This
license does not vest in the licensee any right to operate a station nor any
right in the use of frequencies beyond the term thereof nor in any other manner
than authorized herein. Neither this license nor the right granted thereunder
shall be assigned or otherwise transferred in violation of the Communications
Act of 1934, as amended (47 U.S.C. (S) 151, et seq.). This license is subject in
terms to the right of use or control conferred by Section 706 of the
Communications Act of 1934, as amended (47 U.S.C. (S) 606).

Conditions continued on Page 2.

- --------------------------------------------------------------------------------

WAIVERS :
- -------
No waivers associated with this authorization.




- --------------------------------------------------------------------------------
<PAGE>

KNLG917                     MERCURY II PCS II, LLC                01295-CW-L-97



CONDITIONS:


This authorization is subject to the condition that, in the event that systems
using the same frequencies as granted herein are authorized in an adjacent
foreign territory (Canada/United States), future coordination of any base
station transmitters within 72 km (45 miles) of the United States/Canada border
shall be required to eliminate any harmful interference to operations in the
adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.


This authorization is conditioned upon the full and timely payment of all monies
due pursuant to Sections 1.2110 and 24.716 of the Commission's Rules and the
terms of the Commission's installment plan as set forth in the Note and Security
Agreement executed by the licensee. Failure to comply with this condition will
result in the automatic cancellation of this authorization.


- --------------------------------------------------------------------------------
Issue Date: January 30, 1998                                         Page 2 of 2
FCC Form 463a


<PAGE>

                           United States of America
                       Federal Communications Commission

                          RADIO STATION AUTHORIZATION

                       Commercial Mobile Radio Services
                  Personal Communications Service - Broadband

                                                  Call Sign:  KNLG920
[STAMP APPEARS HERE]                              Market:  B195
                                                  HOUMA-THIBODAUX, LA

MERCURY PCS II, LLC
1410 LIVINGSTON LANE                                Channel Block: F
JACKSON, MS 39213

                                               File Number:01298-CW-L-97

- --------------------------------------------------------------------------------
The licensee hereof is authorized, for the period indicated, to construct and
operate radio transmitting facilities in accordance with the terms and
conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory and all pertinent rules and regulations of the Federal Communications
Commission contained in the Title 47 of the U.S. Code of Federal Regulations.

- --------------------------------------------------------------------------------

     Initial Grant Date .........................  August 21, 1997

     Five-year Build Out Date ...................  August 21, 2002

     Expiration Date ............................  August 21, 2007
- --------------------------------------------------------------------------------
CONDITIONS
- ----------
Pursuant to Section 309(h) of the Communications Act of 1934, as amended, (47
U.S.C. (S) 309(h)), this license is subject to the following conditions: This
license does not vest in the licensee any right to operate a station nor any
right in the use of frequencies beyond the term thereof nor in any other manner
than authorized herein. Neither this license nor the right granted thereunder
shall be assigned or otherwise transferred in violation of the Communications
Act of 1934, as amended (47 U.S.C. (S) 151, et seq.). This license is subject in
terms to the right of use or control conferred by Section 706 of the
Communications Act of 1934, as amended (47 U.S.C. (S) 606).

Conditions continued on Page 2.

- --------------------------------------------------------------------------------
WAIVERS :
- -------
No waivers associated with this authorization.




- --------------------------------------------------------------------------------

<PAGE>

KNLG920                    MERCURY PCS II, LLC                     01298-CW-L-97



CONDITIONS:


This authorization is subject to the condition that, in the event that systems
using the same frequencies as granted herein are authorized in an adjacent
foreign territory (Canada/United States), future coordination of any base
station transmitters within 72 km (45 miles) of the United States/Canada border
shall be required to eliminate any harmful interference to operations in the
adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.


This authorization is conditioned upon the full and timely payment of all monies
due pursuant to Sections 1.2110 and 24.716 of the Commission's Rules and the
terms of the Commission's installment plan as set forth in the Note and Security
Agreement executed by the licensee. Failure to comply with this condition will
result in the automatic cancellation of this authorization.





- --------------------------------------------------------------------------------
<PAGE>

                            United States of America
                       Federal Communications Commission


                          RADIO STATION AUTHORIZATION

                        Commercial Mobile Radio Services
                  Personal Communications Service - Broadband


[STAMP APPEARS HERE]                                  Call Sign:  KNLG921
                                                      Market:  B236
                                                      LAFAYETTE-NEW IBERIA, LA


MERCURY PCS II, LLC
1410 LIVINGSTON LANE                                          Channel Block: F
JACKSON, MS 39213
                                                      File Number:01299-CW-L-97


- --------------------------------------------------------------------------------
The licensee hereof is authorized, for the period indicated, to construct and
operate radio transmitting facilities in accordance with the terms and
conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory and all pertinent rules and regulations of the Federal Communications
Commission contained in the Title 47 of the U.S. Code of Federal Regulations.

- --------------------------------------------------------------------------------

     Initial Grant Date .........................  August 21, 1997

     Five-year Build Out Date ...................  August 21, 2002

     Expiration Date ............................  August 21, 2007

- --------------------------------------------------------------------------------
CONDITIONS
- ----------
Pursuant to Section 309(h) of the Communications Act of 1934, as amended, (47
U.S.C. (S) 309(h)), this license is subject to the following conditions: This
license does not vest in the licensee any right to operate a station nor any
right in the use of frequencies beyond the term thereof nor in any other manner
than authorized herein. Neither this license nor the right granted thereunder
shall be assigned or otherwise transferred in violation of the Communications
Act of 1934, as amended (47 U.S.C. (S) 151, et seq.). This license is subject in
terms to the right of use or control conferred by Section 706 of the
Communications Act of 1934, as amended (47 U.S.C. (S) 606).

Conditions continued on Page 2.

- --------------------------------------------------------------------------------
WAIVERS :
- -------
No waivers associated with this authorization.




- --------------------------------------------------------------------------------

<PAGE>

KNLG921                  MERCURY PCS II, LLC                       01299-CW-L-97



CONDITIONS:


This authorization is subject to the condition that, in the event that systems
using the same frequencies as granted herein are authorized in an adjacent
foreign territory (Canada/United States), future coordination of any base
station transmitters within 72 km (45 miles) of the United States/Canada border
shall be required to eliminate any harmful interference to operations in the
adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.


This authorization is conditioned upon the full and timely payment of all monies
due pursuant to Sections 1.2110 and 24.716 of the Commission's Rules and the
terms of the Commission's installment plan as set forth in the Note and Security
Agreement executed by the licensee. Failure to comply with this condition will
result in the automatic cancellation of this authorization.





- --------------------------------------------------------------------------------
<PAGE>

                                                                    SCHEDULE 4.2

                               Mercury Consents
                               ----------------

     The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:

     1.   The Federal Communications Commission.

     Matters which could prevent Mercury from consummating the Transactions
     include:

     A.   Amarillo Celltelco and High Plains Wireless L.P. v. William M.
          Mounger, II, E.B. Martin, Jr., Jerry Sullivan, Jr., Mercury Southern,
          LLC and Mercury PCS II, LLC; No. 83, 268-A in the 47th District Court
          in and for Potter County, Texas.

     B.   Applications for Review filed by High Plains Wireless, L.P.: In re
          Application of Mercury PCS II, LLC for Facilities in the Broadband
          Personal Communications Services in the D, E and F Blocks, Federal
          Communications Commission File Numbers 00114CWL97, et al.

     C.   United States Department of Justice, Antitrust Division, Washington,
          D.C.; Mercury PCS II, LLC, Civil Investigative Demand No. 16337.
<PAGE>

                                                                    SCHEDULE 4.3

                              Mercury Litigation
                              ------------------

     See Items A-C on Schedule 4.2.
<PAGE>

                                                                    SCHEDULE 4.6

                            Mercury FCC Proceedings
                            -----------------------


     See Items A-C on Schedule 4.2.
<PAGE>

                                                                    SCHEDULE 5.2

                               Company Consents
                               ----------------

     The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:

     1.   The Federal Communications Commission.
<PAGE>

                                   EXHIBIT A
                                   ---------

_____________, 1998
TeleCorp PCS, Inc.
1110 N.  Glebe Road, Suite 300
Arlington, VA 22201

Ladies and Gentlemen:

We have acted as counsel to Mercury PCS II, LLC, a Mississippi limited liability
company ("Mercury") in connection with the closing (the "Closing") under the
          -------                                        -------
License Acquisition Agreement dated as of February , 1998 (the "License
                                                                -------
Acquisition Agreement") by and between Mercury and TeleCorp PCS, Inc.  a
- ---------------------
Delaware corporation (the "Company").  This opinion is furnished to you pursuant
                           -------
to Section 72 of the License Acquisition Agreement.  Capitalized terms used in
this opinion which are defined in the License Acquisition Agreement shall have
the meanings  ascribed to them in the License Acquisition Agreement, unless
otherwise defined in this opinion.

In connection with this opinion, we have examined the Certificate of Formation
and Limited Liability Company Agreement of Mercury and the limited liability
company proceedings taken by Mercury in connection with the Transaction
Documents (defined below).  We have also examined executed copies or photocopies
of executed copies of the following documents:


          1.   the License Acquisition Agreement,

          2.   the Restated Certificate and Restated Bylaws,

          3.   the Stockholders Agreement;

          4.   the instruments of assignment referred to in Section 32 of
               the License Acquisition Agreement (the "Instruments of
                                                       --------------
               Assignment");
               ----------

          5.   the opinion of Brown & Wood LLP (the "New York Counsel Opinion"),
                                                     ------------------------
               a copy of which is attached as Exhibit A; and
                                              ---------

          6.   such other documents records and papers as we have deemed
               necessary and relevant as a basis for this opinion.

The specific documents listed at I through 4 above are collectively referred to
herein as the "Transaction Documents".
               ---------------------

We have examined originals or copies of such certificates, documents, records,
agreements and instruments and have made such investigations of law and fact as
we have deemed necessary to
<PAGE>

TeleCorp PCS, Inc.
______________,1998
Page 6

render this opinion. To the extent we deem proper, we have relied as to certain
factual matters on representations made in the Transaction Documents and oral or
written statements, letters or certificates of public officials or the manager
and/or members of Mercury. For the opinion of good standing of Mercury we have
relied solely upon the Certificate of Existence on Mercury issued by the
Mississippi Secretary of State on February _____,1998.

In each place where the phrase 'to our knowledge" or like references appear,
this shall mean to the best of our knowledge after due inquiry and
investigation. Due inquiry and investigation shall include only (i) discussions
inquiries and conferences occurring in connection with our representation of
Mercury, (ii) reviews of certain limited liability company records, documents
and proceedings of Mercury, and (iii) reviews of our files, relating to Mercury,
and shall not imply any independent verification of any factual matter of which
we became aware as a result of such discussions, inquiries, conferences and
reviews.

As used herein, the term "Applicable Laws" means the General Corporation Law of
                          ---------------
the State of Delaware and the laws, rules and regulations of the State of
Mississippi, of the State of New York, and of the United States, and

"Governmental Authorities" means any Mississippi, New York, Delaware or federal
 ------------------------
executive, legislative, judicial, administrative or regulatory body.

All opinions expressed in this letter are subject in their entirety to the
following qualifications and assumptions and the qualifications and assumptions
set forth in the New York Counsel Opinion:

          (i)   We have assumed the authenticity of all documents submitted to
us as originals, the genuineness of all signatures, the legal capacity of
natural persons and the conformity to originals of all documents submitted to us
as copies

          (ii)  Although certain of our attorneys are qualified to practice in
states other than Mississippi we express no opinion regarding matters which may
be governed by any laws other than the Applicable Laws. In this regard, we note
that the License Acquisition Agreement and the Instruments of Assignment are to
be governed by the laws of the State of New York.  With respect to the opinions
expressed in Paragraphs 4, 5 and 6 below which involve matters governed by or
concerning the laws of the State of New York, we have, with your permission
relied entirely and exclusively on the New York Counsel Opinion.

          (iii) We express no opinion as to (i) matters arising under or
governed by the Communications Act of 1934, as amended, or the rules and
regulations of the Federal Communications Commission (the "FCC") promulgated
                                                           ---
thereunder, (ii) the public service or public utilities laws, rules or
regulations of any jurisdiction, (iii) the antitrust or similar laws of the
United States or any other jurisdiction, (iv) the franchise or similar laws of
the United States or any other jurisdiction, or (v) the laws of any municipality
or other local agency within any state.
<PAGE>

TeleCorp PCS, Inc.
______________,1998
Page 7

          (iv)    We have assumed that the transactions contemplated by the
Transaction Documents will be effected in the future in accordance with the
terms thereof.

          (v)     We have assumed that each of the parties (other than Mercury)
has the full power, authority and legal right to enter into and perform its
obligations under each of the Transaction Documents to which it is a party, and
has duly authorized, executed and delivered the same, and that each such
agreement or instrument is its valid and binding obligation, enforceable against
it in accordance with its terms. We express no opinion as to the effect on the
opinions expressed herein of (i) the compliance or non-compliance of any party
(other than Mercury) to the Transaction Documents with any state, federal or
other laws or regulations applicable to them, (ii) the regulatory status or the
name of the business of any party to the Transaction Documents (other than
Mercury) or (iii) the applicability or effect of any fraudulent transfer or
similar law on the Transaction Documents or any transactions contemplated
thereby.

          (vi)    We have assumed that all parties will in all respects act in
good faith in a commercially reasonable manner and in compliance with applicable
federal and state laws and authority.

Based solely upon and in reliance on the documents and statements referred to
above, and subject to the assumptions, qualifications and limitations set forth
or incorporated herein, we are of the opinion that:

                  1.  Mercury is duly organized, validly existing and in good
       standing under the laws of the State of Mississippi.

                  2.  Mercury has all requisite limited liability company power
       to own, lease and operate its properties and to carry on its business as
       now being conducted, and to execute and deliver and perform its
       obligations under the Transaction Documents to which it is a party,
       including the assignment to the Company of the Mercury Licenses, and in
       each case to engage in the respective Transactions.

                  3.  The execution, delivery and performance by Mercury of each
       of the Transaction Documents to which it is a party, and the consummation
       of the Transactions, including the Mercury License Transfer, have been
       duly authorized by all necessary limited liability company action on the
       part of Mercury and its members and no other proceedings on its part or
       the part of its members is necessary to authorize the Transaction
       Documents or to consummate the Transactions.

                  4.  Each Transaction Document to which Mercury is a party has
       been duly executed and delivered by Mercury and constitutes the valid and
       binding obligation of Mercury, enforceable against Mercury in accordance
       with its terms, subject to the following qualifications:
<PAGE>

TeleCorp PCS, Inc.
______________,1998
Page 8

               a.  the enforceability of the Transaction Documents may be
          limited by bankruptcy, insolvency, reorganization, moratorium,
          fraudulent conveyance or other similar laws affecting generally the
          enforcement of creditors' rights.

               b.  our opinion is subject to limitations on the enforceability
          of any rights to contribution or indemnification provided for in any
          of the Transaction Documents which are violative of the public policy
          underlying any law, rule or regulation (including any federal or state
          securities law or regulation).

               c.  no opinion is expressed as to the enforceability of
          provisions relating to restrictive covenants, waiver of remedies (or
          the delay or omission of enforcement thereof), disclaimers, liability
          limitations with respect to third parties, releases of legal or
          equitable rights, or discharges of defenses.

               d.  the enforceability of the Transaction Documents is subject to
          and may be affected by general principles of equity (regardless of
          whether considered in a proceeding in equity or at law) including, but
          not limited to, the availability of specific performance.

               e.  we have assumed there are no oral or written modifications of
          or amendments to the Transaction Documents and there has been no
          waiver of any of the provisions of these documents, by actions or
          conduct of the parties or otherwise.

          5.   Except as set forth in the Transaction Documents (including by
     reference to a schedule of exhibit), neither the execution, delivery and
     performance by Mercury of the Transaction Documents to which it is a party,
     nor the consummation by Mercury of the Transactions, including the Mercury
     License Transfer will (a) conflict with any provision of the organizational
     documents of Mercury; (b) contravene any provision of Applicable Law, or
     (c) require any Consent on the part of any Governmental Authority, except,
     in the case of clauses (b) and (c) hereof, where such conflict or
     contravention, or the failure to obtain or give such Consent, would not
     have a Material Adverse Effect on Mercury or materially adversely affect
     the Transactions.

          6.   The License Acquisition Agreement and the Instruments of
     Assignment are in form sufficient to effect the Mercury License Transfer.
     We express no opinion, however, as to the nature or extent of Mercury's
     rights in, or title to, the Mercury Licenses or any other property
     purported to be transferred by the License Acquisition Agreement or the
     Instruments of Transfer.
<PAGE>

TeleCorp PCS, Inc.
______________,1998
Page 9


This opinion is for the benefit of and may be relied upon only by, you in
connection with the Transaction Documents and nay not be relied upon by any
third person, reproduced or used for any other purpose without our prior written
consent. You have not requested us to update our opinion, and we will not do so
unless you request us to do so on a periodic basis with the consent of Mercury

 .
Yours sincerely,
<PAGE>

                                   Exhibit B
                                   ---------
            Opinion Letter Of FCC Counsel To Mercury PCS Corporation



                             _______________, 1998


TeleCorp PCS, Inc.
1110 N.  Glebe Road
Suite 300
Arlington, Virginia 22201



Dear Sir or Madame:

     We have acted as special Federal Communications Commission ("FCC") counsel
for Mercury PCS II, L.L.C.  ("Mercury") in connection with the License
Acquisition Agreement (the  "Agreement") dated as of __________, 1998 between
Mercury and TeleCorp PCS, Inc.  ("TeleCorp").  This opinion is being furnished
to you pursuant to Section 7.2(d) of the Agreement.  Except as otherwise
specified, capitalized terms used in this opinion which are defined in the
Agreement are used herein with the same meaning.

     This opinion is governed by, and shall be interpreted in accordance with,
the Legal Opinion Accord of the ABA Section of Business Law (1991) and the
Report of the Subcommittee on Legal Opinions of the Transactional Practice
Committee of the Federal Communications Bar Association (1996). As a
consequence, it is subject to a number of qualifications, exceptions,
definitions, limitations on coverage and other limitations, all as more
particularly described in the Accord, and this opinion should be read in
conjunction therewith.

    As special FCC counsel to Mercury, we have represented Mercury before the
FCC. This opinion is limited strictly to matters arising under the
Communications Act of 1934, as amended (the "Act"), and the published rules,
regulations and policies of the FCC (collectively "Communications Laws) , all as
applicable to Mercury. We express no opinion with respect to any other law,
statute, rule, regulation, ordinance, decision, judgment, decree, legal
requirement, or legal authority. This opinion should not be construed to render
an opinion on any matter of state law with respect to Mercury or its operations,
or on the validity of the issuance of any securities, or on the lawful
procedures for perfection of security interests.
<PAGE>

     In connection with this opinion, we have examined such records, documents,
certificates, and other instruments of record in the publicly available files of
the FCC ("Public File") on ___________, 1998, and have made such investigations
of law as we deem necessary to render this opinion. (Collectively our
investigation described above undertaken to render this opinion is 'Our
Inquiry.") In making Our Inquiry, we have assumed: (i) the genuineness of all
signatures (other than those of representatives of Mercury) appearing on all
documents: (ii) the legal capacity of all persons executing documents to do so;
(iii) the authenticity and completeness of documents submitted to us for our
examination, whether or not they have been submitted to us as originals: (iv)
the conformity to authentic original documents of all documents
submitted to us as certified, conformed, facsimile, or photostatic copies; (v)
the accuracy and completeness of all records made available to us by Mercury and
by the FCC, except as otherwise expressly stated herein; (vi) the due
authorization of the execution, delivery, and performance of the Agreement; and
(vii) the validity and binding effect of the Agreement upon the parties thereto.

     As to various matters of fact in connection with this opinion, we have
relied solely upon Our Inquiry as described herein.  No inference as to our
knowledge of the existence or nonexistence of facts, other than facts of  which
we have obtained actual knowledge as a result of Our Inquiry, should be drawn
from the fact of our representation of Mercury as special FCC counsel.

     When used in this opinion, the term "our knowledge," or some similar
phrase, refers to the actual current knowledge of the attorneys currently in
this firm who have been actively involved in Mercury's representation.  Whenever
our opinion with respect to the existence or nonexistence of facts is qualified
by the phrase "to our knowledge," or some similar phrase, it is intended to
indicate that no information has come to the attention of those attorneys in the
course of our representation that would give them actual knowledge that our
opinion with respect to the existence or nonexistence of any facts is
inaccurate.

     Whenever our opinion is qualified by the phrase "after Our Inquiry" or some
similar phrase, it is intended to indicate that we undertook Our Inquiry as
described herein, but did not undertake any independent investigation or
evaluation to confirm the accuracy or completeness of the responses of Mercury
or FCC to Our Inquiry or any on-site field inspection of Mercury or its
facilities, and have relied fully on Mercury's descriptions of its facilities in
the Agreement. Moreover, a field inspection of Mercury's facilities is not
within the scope of our professional responsibility or expertise as attorneys
and we do not make such inspections, including but not limited to inspection of
the physical condition of Mercury's facilities or whether actual operation of
these facilities is in compliance with legal, regulatory or technical standards
which may be
<PAGE>

applicable. The phrase "to our knowledge" or like language includes the
limitation expressed in this paragraph with respect to the fact that we have
conducted no field inspection of Mercury's facilities.

Based upon the foregoing, it is our opinion that:

               1.  Mercury is the legal holder of the Mercury Licenses attached
to Schedule I of the Agreement. Each of the PCS Licenses is valid and is in full
force and effect. With regard to the Mercury Licenses, Mercury has submitted to
the FCC all required material documents, applications and reports required
pursuant to FCC Rules and is in compliance with respect to the operation of the
Mercury Licenses in all material respects.

               2.  Except for those matters set forth in Schedule II, there is
not pending, nor to the best of our knowledge, threatened against Mercury or the
Mercury Licenses, any application, action, petition, objection or other
pleading, or any proceeding pending at the FCC which questions or contests the
validity of, or seeks the revocation, non-renewal or suspension of, or the
imposition of any fine or forfeiture on, any of the Mercury Licenses or which
seeks modification of any of the Mercury Licenses in any case which would have a
material adverse effect on the ability of Mercury to consummate the transactions
contemplated by the Agreement.

               3.  Except for those matters set forth in Schedule II, all FCC
consents required in order to consummate the transactions contemplated by the
Agreement have been obtained and all such consents are Final orders.

               4.  Except for those matters set forth in Schedule II, there in
not now pending at the FCC any action, petition or proceeding, nor to the best
of our knowledge is any such matter threatened, against Mercury which could
cause Mercury to be ineligible to hold the Mercury Licenses.

     This opinion in being provided solely for your use and benefit in
connection with the Agreement. It may not be quoted, copied, delivered to, or
relied upon by anyone other than you and your senior lenders directly involved
in connection with the Agreement and for no other purpose without the express,
written consent of this firm. This opinion is effective only as of the date
hereof and is based on statutory laws and judicial decisions that are effective
on the date hereof; we do not opine with respect to any law, regulation, rule,
or governmental policy which may be enacted, adopted, or become effective after
the date hereof; nor do we undertake any professional responsibility to advise
you as to any subsequent event either in the nature of a change of fact or law,
as to which we may become aware.
<PAGE>

     This opinion should not be assumed to state general principles of law
applicable to transactions of this kind. Where opinions are expressed concerning
the financial effect or possible effect of any event upon Mercury or any aspect
of its operations, you should be advised that we have no particular expertise in
any such matter and you rely on such opinion at your own risk.

                                         Very truly yours,

                                         LUKAS, NACE, GUTIERREZ, & SACHS
                                         CHARTERED

                                         By:______________________________
                                              Thomas Gutierrez
                                              Principal
<PAGE>

                                                                       EXHIBIT C


                    [Letterhead of Counsel to the Company]


Mercury PCS II, LLC

Ladies and Gentlemen:

          We have acted as counsel for TeleCorp PCS, Inc., a Delaware
corporation (the "Company"), in connection with the closing (the "Closing")
under the License Acquisition Agreement, dated as of May 15, 1998 (the "License
Acquisition Agreement"), by and between the Company and Mercury PCS II, LLC, a
Mississippi limited liability company ("Mercury"). Capitalized terms used herein
without definition shall have the respective meanings ascribed to them in the
License Acquisition Agreement. This opinion is being delivered pursuant to
Section 7.3 of the License Acquisition Agreement.

          In connection herewith, we have examined executed copies or
photocopies of executed copies of the following documents (collectively, the
"Transaction Documents"):

          1.   the License Acquisition Agreement;

          2.   the Restated Certificate and Restated Bylaws; and

          3.   the Stockholders Agreement.

          In giving this opinion, we have examined and relied on the
representations as to factual matters contained in or made pursuant to the
Transaction Documents, and have also examined and relied upon the originals, or
copies certified or otherwise identified to our satisfaction, of such corporate
records, documents, certificates and other instruments, and have made such other
investigations, as in our judgment are necessary or appropriate to enable us to
render the opinions expressed below with respect to our opinion as to whether
the Company and its Subsidiaries are in good standing in a particular
jurisdiction, we have relied on good standing or similar certificates issued on
or prior to the date hereof by the Office of the Secretary of State or similar
office of such jurisdictions.
<PAGE>


          In our examinations, we have assumed the legal capacity of all natural
persons, the genuineness of all signatures, the authenticity of all documents
submitted to us as originals, the conformity to original documents of all
documents submitted to us as certified or photostatic copies and the
authenticity of the originals of such copies. We have also assumed that each of
the parties (other than the Company) (i) has the full power, authority and legal
right to enter into and perform its obligations under each of the Transaction
Documents to which it is a party, (ii) has duly authorized, executed and
delivered the same, (iii) has complied with the terms of the Transaction
Documents, and (iv) that each such agreement or instrument is its valid and
binding obligation, enforceable against it in accordance with its terms. We
express no opinion as to the effect on the opinions expressed herein of (i) the
compliance or non-compliance of any party (other than the Company) to the
Transaction Documents with any state, federal or other laws or regulations
applicable to them, (ii) the regulatory status or the nature of the business of
any party to the Transaction Documents (other than the Company) or (iii) the
applicability or effect of any fraudulent transfer or similar law on the
Transaction Documents or any transactions contemplated thereby.

          As used herein, the term "Applicable Laws" means the General
Corporation Law of the State of Delaware and the laws, rules and regulations of
the State of New York and of the United States; and "Governmental Authorities"
mean any New York, Delaware or federal executive, legislative, judicial,
administrative or regulatory body. Whenever our opinion herein is indicated to
be based upon our knowledge of any matter or issue, it is intended to signify
that, in the course of our preparation of this opinion and representation of the
Company in connection with its execution and delivery of the Transaction
Documents, without having made any special investigation, none of the attorneys
who were involved in the preparation of the opinion, or such representation of
the Company has acquired actual knowledge of the matter or issue.

          Based upon the foregoing, subject to the assumptions, qualifications
and limitations stated herein, and relying as to factual matters solely upon
statements of fact contained in the documents that we have examined, we are of
the opinion that:

          1.   Each of the Company and each of its Subsidiaries is a corporation
duly organized, validly existing and in good standing under the laws of the
jurisdiction of its incorporation.

          2.   Each of the Company and each of its Subsidiaries has all
requisite corporate power to own, lease and operate its properties and to carry
on its business as now being conducted and as proposed to be conducted, and in
the case of the Company to execute, deliver and perform its obligations under
the Transaction Documents to
<PAGE>

which it is a party, including the issuance of the Preferred Stock and the
Common Stock, and in each case to engage in the respective Transactions.

          3.   The execution, delivery and performance by the Company of each of
the Transaction Documents to which it is a party, and the consummation of the
Transactions, have been duly authorized by all necessary corporate action on the
part of the Company and its stockholders and no other proceedings on its part or
the part of its stockholders is necessary to authorize the Transaction Documents
or to consummate the Transactions.

          4.   Each Transaction Document to which the Company is a party has
been duly executed and delivered by the Company and constitutes the valid and
binding obligation of the Company, enforceable against the Company in accordance
with its terms, subject to the following qualifications:

          a.  enforcement may be limited by applicable bankruptcy, insolvency,
     reorganization, arrangement, moratorium or other similar laws affecting
     creditors' rights generally and by general principles of equity (regardless
     of whether enforcement is sought in equity or at law);

          b.  our opinion is subject to limitations on the enforceability of any
     rights to contribution or indemnification provided for in any of the
     Transaction Documents which are violative of the public policy underlying
     any law, rule or regulation (including any federal or state securities law
     or regulation); and

          c.  no opinion is expressed as to the enforceability of provisions
     relating to restrictive covenants, waiver of remedies (or the delay or
     omission of enforcement thereof), disclaimers, liability limitations with
     respect to third parties, releases of legal or equitable rights, or
     discharges of defenses.

          5.   Except as set forth in the Transaction Documents (including by
reference to a schedule or exhibit), neither the execution, delivery and
performance by the Company of the Transaction Documents, nor the consummation of
the Transactions, will (a) conflict with any provision of the Company's
organizational documents, (b) contravene any provision of Applicable Law; or (c)
require any Consent on the part of any Governmental Authority other than those
set forth on Schedule 5.2 to the License Acquisition Agreement, except, in the
case of clauses (b) and (c) hereof, where such contravention, or the failure to
obtain or give such Consent, would not have a Material Adverse Effect on the
Company or materially adversely affect the Transactions or the operation of the
Company's business after the Closing Date.
<PAGE>

          6.   The shares of Preferred Stock and Common Stock being delivered
pursuant to the License Acquisition Agreement will be duly authorized, validly
issued, fully paid and nonassessable, and will be free of any Liens caused or
created by the Company, except as set forth in the Stockholders Agreement and
the Restated Certificate. The shares of Common Stock or Preferred Stock issued
upon conversion or exchange of the Preferred Stock, when issued pursuant to the
terms of the Preferred Stock, will be validly issued, fully paid and
nonassessable, and will be free of any Liens caused or created by the Company,
except as set forth in the Stockholders Agreement and the Restated Certificate.

          The foregoing opinions are limited to the laws of the State of New
York, the General Corporation Law of the State of Delaware and the Federal laws
of the United States of America, except that we express no opinion as to (i)
matters arising under or governed by the Communications Act of 1934, as amended,
or the rules and regulations of the Federal Communications Commission (the
"FCC") promulgated thereunder, (ii) the public service or public utilities laws,
rules or regulations of any jurisdiction, (iii) the antitrust or similar laws of
the United States or any other jurisdiction, (iv) the franchise or similar laws
of the United States or any other jurisdiction, and (v) matters arising under or
governed by the Small Business Investment Company Act of 1958, as amended, or
the rules and regulations of the Small Business Administration promulgated
thereunder, or (vi) the laws of any municipality or other local agency within
any state. We are members of the bar of the State of New York, and, as such, do
not purport to be experts on laws other than the laws of the State of New York,
the General Corporation Law of the State of Delaware and certain Federal laws of
the United States.

          This opinion is being furnished to you in connection with the Closing
occurring today. This opinion is solely for your benefit and is not to be used,
circulated, quoted or otherwise referred to for any other purpose without our
prior consent. We assume no obligation to update or supplement this opinion to
reflect any facts or circumstances that may hereafter come to our attention or
any changes in facts or law that may hereafter occur.

                                   Very truly yours,
<PAGE>

                                                                       EXHIBIT D

                             [FORM OF ASSIGNMENT]

                           INSTRUMENT OF ASSIGNMENT


          INSTRUMENT OF ASSIGNMENT from Mercury PCS II, LLC, a Mississippi
limited liability company ("Assignor"), to [NAME OF ASSIGNEE], a Delaware
corporation (the "Company").

          Assignor and the Company have executed and delivered a License
Acquisition Agreement, dated as of May 15, 1998 (the "Acquisition Agreement").
Capitalized terms used herein without definition shall have the respective
meanings assigned to them in the Acquisition Agreement.

          1.  Pursuant to Section 2.1 of the Acquisition Agreement, for valuable
consideration, receipt of which is hereby acknowledged, Assignor does hereby
assign, transfer and convey to the Company, its successors and assigns forever,
the  Mercury Licenses,

          TO HAVE AND TO HOLD, all and singular, the assets and properties
hereby assigned, conveyed, transferred and delivered or intended so to be unto
the Company and its successors and assigns to and for its or their use forever.

          2.  Nothing contained in this Instrument of Assignment shall in any
way supersede, modify, replace, amend, change, rescind, waive, exceed, expend,
enlarge or in any way affect the provisions, including the warranties,
covenants, agreements, conditions, representations or, in general any of the
rights and remedies, and any of the obligations and indemnifications of Assignor
or the Company set forth in the Acquisition Agreement, including without
limitation any limits on indemnification specified therein.  This Instrument of
Assignment is intended only to effect the transfer of a certain interest the
transfer of which is contemplated in the Acquisition Agreement and shall be
governed in accordance with the terms and conditions of the Acquisition
Agreement.

          3.  This Instrument of Assignment is (i) executed pursuant to the
Acquisition Agreement and may be executed in counterparts, each of which as so
executed shall be deemed to be an original, but all of which together shall
constitute one instrument and (ii) shall be governed by and in accordance with
the internal laws of the State of New York, without regard to the principles of
conflicts of law thereof.
<PAGE>

          IN WITNESS THEREOF, Assignor has caused this Instrument of Assignment
to be duly executed and delivered as of this ____ day of ________, 199_.


                              MERCURY PCS II, LLC



                              By:______________________
                                 Name:
                                 Title:

Accepted:

[NAME OF ASSIGNEE]



By:___________________________
   Name:
   Title:

<PAGE>

                                                                 EXHIBIT 10.16.1

        ==============================================================


                         LICENSE ACQUISITION AGREEMENT

                                    between

                              WIRELESS 2000, INC.

                                      and


                              TELECORP PCS, INC.

                         Dated as of December 2, 1998

        ===============================================================
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<S>                                                                                                     <C>
ARTICLE I      DEFINITIONS............................................................................   1

ARTICLE II     PURCHASE AND SALE OF LICENSES; PAYMENT OF  CONSIDERATION;
               CERTAIN RESTRICTIONS ON TRANSFER.......................................................   5

    2.1   Purchase and Sale of Licenses...............................................................   5

    2.2   Payment of Consideration....................................................................   5

    2.3   Restrictive Legends.........................................................................   5

ARTICLE III    CLOSING................................................................................   6

    3.1   Time and Place of Closing...................................................................   6

    3.2   Closing Actions and Deliveries..............................................................   7

          (1)  Assignment of Licenses.................................................................   7

          (2)  Delivery of Securities and Reimbursements..............................................   7

          (3)  Assumption of Indebtedness.............................................................   7

          (4)  Other Deliveries.......................................................................   7

    3.3   Payment of Transfer Taxes...................................................................   8

ARTICLE IV     REPRESENTATIONS AND WARRANTIES OF WIRELESS.............................................   8

    4.1   Organization, Power and Authority...........................................................   8

    4.2   Consents; No Conflicts......................................................................   9

    4.3   Litigation..................................................................................   9

    4.4   FCC Compliance..............................................................................   9

    4.5   Brokers.....................................................................................  10

    4.6   Disaggregated Licenses......................................................................  10

    4.7   No Distribution.............................................................................  10

    4.8   Investor Acknowledgments....................................................................  10

ARTICLE V      REPRESENTATIONS AND WARRANTIES OF THE COMPANY..........................................  11

    5.1   Organization, Power and Authority...........................................................  11

    5.2   Consents; No Conflicts......................................................................  12
</TABLE>

                                      -i-
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<S>                                                                                                       <C>
    5.3   Litigation....................................................................................  13

    5.4   FCC Compliance................................................................................  13

    5.5   Brokers.......................................................................................  13

    5.6   Capitalization................................................................................  13

    5.7   Shares........................................................................................  13

    5.8   Offering of Securities........................................................................  13

    5.9   Stockholders Agreements.......................................................................  14

ARTICLE VI     COVENANTS................................................................................  14

    6.1   Consummation of Transactions..................................................................  14

    6.2   Confidentiality...............................................................................  15

    6.3   Certain Covenants.............................................................................  16

    6.4   Settlement with Century.......................................................................  17

    6.5   Certain Advances for FCC Debt Interest Payments...............................................  17

ARTICLE VII    CLOSING CONDITIONS.......................................................................  19

    7.1   Conditions to Obligations of All Parties......................................................  19

    7.2   Conditions to Obligations of the Company......................................................  20

    7.3   Conditions to the Obligations of Wireless.....................................................  21

ARTICLE VIII   SURVIVAL AND INDEMNIFICATION.............................................................  21

    8.1   Survival......................................................................................  21

    8.2   Indemnification by Wireless...................................................................  22

    8.3   Indemnification by the Company................................................................  22

    8.4   Procedures....................................................................................  22

    8.5   Registration Rights...........................................................................  24

ARTICLE IX     TERMINATION..............................................................................  24

    9.1   Termination...................................................................................  24

    9.2   Effect of Termination.........................................................................  24

ARTICLE X      MISCELLANEOUS PROVISIONS.................................................................  25
</TABLE>

                                     -ii-
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<S>                                                                                                 <C>
10.1  Amendment and Modification..................................................................  25

10.2  Waiver of Compliance; Consents..............................................................  25

10.3  Notices.....................................................................................  25

10.4  Parties in Interest; Assignment.............................................................  26

10.5  Applicable Law..............................................................................  26

10.6  Counterparts................................................................................  26

10.7  Interpretation..............................................................................  26

10.8  Entire Agreement............................................................................  27

10.9  Publicity...................................................................................  27

10.10 Specific Performance........................................................................  27

10.11 Remedies Cumulative.........................................................................  27
</TABLE>

                                     -iii-
<PAGE>

                            SCHEDULES AND EXHIBITS
                            ----------------------

Schedule I        Wireless Licenses
Schedule II       FCC Debt Related to Wireless Licenses
Schedule 2.2(3)   Monroe Reimbursement and FCC Paid Interest
Schedule 4.2      Wireless Consents
Schedule 4.3      Wireless Litigation
Schedule 4.6      Wireless FCC Proceedings
Schedule 5.2      Company Consents
Schedule 5.6      Company Capitalization



Exhibit A       Form of Disaggregated License Transfer
Exhibit B       Form of Wireless' FCC Opinion
Exhibit C       Form of Wireless' Counsel Opinion
Exhibit D       Form of Company's Counsel Opinion
Exhibit 6.5(a)  Form of Security Agreement
Exhibit 6.5(b)  Form of Stock Pledge Agreement
<PAGE>

                         LICENSE ACQUISITION AGREEMENT
                         -----------------------------

          LICENSE ACQUISITION AGREEMENT, dated as of December 2, 1998, between
WIRELESS 2000, INC., a Louisiana corporation ("Wireless"), and TELECORP PCS,
                                               --------
INC., a Delaware corporation (the "Company").
                                   -------

          WHEREAS, Wireless has been granted the PCS licenses described on
Schedule I (the "Wireless Licenses"); and
- ----------       -----------------

          WHEREAS, Wireless wishes to sell to the Company, and the Company
wishes to acquire from Wireless, a disaggregated 15 MHz of each of the Wireless
Licenses, all on the terms and subject to the conditions herein set forth;

          NOW, THEREFORE, in consideration of the promises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the parties agree as follows:

                                   ARTICLE I

                                  DEFINITIONS
                                  -----------

          As used herein, the following terms have the following meanings
(unless indicated otherwise, all Section and Article references are to Sections
and Articles in this Agreement, and all Schedule and Exhibit references are to
Schedules and Exhibits to this Agreement):

          "Affiliate" means, with respect to any Person, any other Person that
           ---------
directly, or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with that Person. For purposes of this
definition, "control" (including the terms "controlling" and "controlled") means
             -------                        -----------       ----------
the power to direct or cause the direction of the management and policies of a
Person, directly or indirectly, whether through the ownership of securities or
partnership or other ownership interests, by contract or otherwise.

          "Changes in Company Capitalization" shall mean any change in the
           ---------------------------------
Company's issued and outstanding capital stock to give effect to any share
dividend, share split, share combination, recapitalization or other similar
change in the capital structure of the Company after the execution date hereof
and prior to the Closing.

          "Claim" has the meaning set forth in Section 8.5.
           -----

          "Closing" has the meaning set forth in Section 3.1.
           -------

          "Closing Date" has the meaning set forth in Section 3.1.
           ------------
<PAGE>

          "Common Stock" means, collectively, the Voting Common Stock and the
           ------------
Non-Voting Common Stock.

          "Company" has the meaning set forth in the preamble.
           -------

          "Confidential Information" means any and all information regarding the
           ------------------------
business, finances, operations, products, services and customers of the Person
specified and its Affiliates, in written or oral form or in any other medium.

          "Consents" means all consents and approvals of Governmental
           --------
Authorities or other third parties necessary to authorize, approve or permit the
parties hereto to consummate the Transactions and for the Company to operate its
business after the Closing Date as currently contemplated.

          "Disaggregated Licenses" has the meaning set forth in Section 2.1.
           ----------------------

          "Excluded Liability" has the meaning set forth in Section 3.2(3).
           ------------------

          "FCC" means the Federal Communications Commission or similar
           ---
regulatory authority established in replacement thereof.

          "FCC Debt" means the outstanding principal balance of Seven Million
           --------
Four Hundred Forty-Nine Thousand One Hundred Ninety and 27/100 Dollars
($7,449,190.27) due to the United States Department of the Treasury incurred in
connection with Wireless's acquisition of the Disaggregated Licenses, plus all
accrued and/or "suspended" interest, if any, attributable to the Disaggregated
Licenses, as of the Closing Date. A copy of the promissory notes and security
agreements executed by Wireless and delivered to the FCC related to Wireless'
acquisition of the Wireless Licenses is set forth on Schedule II attached
hereto.

          "FCC Law" means the Communications Act of 1934, as amended, including
           -------
as amended by the Telecommunications Act of 1996, and the rules, regulations and
policies promulgated thereunder.

          "Final Order" has the meaning set forth in Section 7.1(b).
           -----------

          "Governmental Authority" means a Federal, state or local court,
           ----------------------
legislature, governmental agency (including, without limitation, the United
States Department of Justice), commission or regulatory or administrative
authority or instrumentality.

          "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements Act of
           -------
1976, as amended, and the rules and regulations promulgated thereunder.

          "Indemnified Party" has the meaning set forth in Section 8.4.
           -----------------

          "Indemnifying Party" has the meaning set forth in Section 8.4.
           ------------------
<PAGE>

          "Law" means applicable common law and any statute, ordinance, code or
           ---
other law, rule, permit, permit condition, regulation, order, decree, technical
or other standard, requirement or procedure enacted, adopted, promulgated,
applied or followed by any Governmental Authority.

          "License" means a license, permit, certificate of authority, waiver,
           -------
approval, certificate of public convenience and necessity, registration or other
authorization, consent or clearance to construct or operate a facility,
including any emissions, discharges or releases therefrom, or to transact an
activity or business, to construct a tower or to use an asset or process, in
each case issued or granted by a Governmental Authority.

          "Lien" means, with respect to any asset, any mortgage, lien, pledge,
           ----
charge, security interest, right of first refusal or right of others therein, or
encumbrance of any nature whatsoever in respect of such asset.

          "Losses" has the meaning set forth in Section 8.2.
           ------

          "Material Adverse Effect" means a material adverse effect on the
           -----------------------
business, financial condition, assets, liabilities or results of operations or
prospects of the Person specified.

          "Monroe License" means the C Block PCS license covering Monroe, LA, as
           --------------
set forth in Schedule I hereto.

          "Monroe Reimbursement" means the reimbursement for actual costs
           --------------------
incurred by Wireless as of the Closing Date for microwave relocation associated
with the Monroe License, up to a total of Two Hundred Thousand Dollars
($200,000).

          "New York Courts" has the meaning set forth in Section 10.5.
           ---------------

          "Non-Voting Common Stock" means the Company's Class B Non-Voting
           -----------------------
Common Stock, par value $.01 per share.

          "Person" means an individual, corporation, partnership, limited
           ------
liability company, association, joint stock company, Governmental Authority,
business trust, unincorporated organization, or other legal entity.

          "Pledge Agreement" means that certain pledge agreement by and among
           ----------------
the stockholders of Wireless identified therein and the Company executed and
delivered pursuant to Section 6.5 below.

          "Pops" means the Paul Kagan Associates, Inc. estimate of the 1997
           ----
population of a geographic area.
<PAGE>

          "Preferred Stock" means the shares of Series A Preferred Stock, Series
           ---------------
C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series
F Preferred Stock of the Company.

          "Representatives" has the meaning set forth in Section 6.2(a).
           ---------------

          "Restated Certificate" means the Amended and Restated Certificate of
           --------------------
Incorporation of the Company filed with the office of the Secretary of State of
the State of Delaware on July 17, 1998.

          "Section 8.2 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.2.

          "Section 8.3 Indemnified Party" has the meaning set forth in Section
           -----------------------------
8.3.

          "Security Agreement" means that certain security agreement executed
           ------------------
and delivered by Wireless and the Company pursuant to Section 6.5 below.

          "Securities" means the shares of Series C Preferred Stock and Class A
           ----------
Voting Common Stock being issued hereunder, together with any shares of Common
Stock issued upon conversion of shares of Series C Preferred Stock.

          "Securities Act" means the Securities Act of 1933, as amended.
           --------------

          "Series C Preferred Stock" has the meaning set forth in Section 2.2.
           ------------------------

          "Stockholders Agreements" mean the (i) Stockholders Agreement by and
           -----------------------
among AT&T Wireless PCS Inc., TWR Cellular, Inc., certain Cash Equity Investors,
and certain Management Stockholders, each as further identified therein (the
"Stockholders Agreement"), and (ii) the Investors Stockholders Agreement by and
among AT&T Wireless PCS Inc., and certain Cash Equity Investors and Management
Stockholders, each as further identified therein (the "Investors Stockholders
Agreement"), each of which is dated July 17, 1998.

          "Subsidiary" shall mean, with respect to any Person, a corporation or
           ----------
other entity of which 50% or more of the voting power or the voting equity
securities or equity interest is owned, directly or indirectly, by such Person.

          "THC" shall mean TeleCorp Holding Corp., Inc., a Delaware corporation
           ---
and wholly-owned subsidiary of the Company.

          "Transactions" means the transactions contemplated by this Agreement,
           ------------
the Security Agreement, the Pledge Agreement and the Stockholders Agreements.

          "Voting Common Stock" has the meaning set forth in Section 2.2.
           -------------------
<PAGE>

          "Voting Preference Stock" means the Company's Voting Preference Common
           -----------------------
 Stock, par value $.01 per share.

          "Wireless" has the meaning set forth in the preamble.
           --------

          "Disaggregated License Transfer" has the meaning set forth in Section
           ------------------------------
3.2(a).

          "Wireless Licenses" has the meaning set forth in the first recital.
           -----------------


                                  ARTICLE II

           PURCHASE AND SALE OF LICENSES; PAYMENT OF CONSIDERATION;
           -------------------------------------------------------
                       CERTAIN RESTRICTIONS ON TRANSFER
                       --------------------------------

     2.1  Purchase and Sale of Licenses. Upon the terms and subject to the
          -----------------------------
conditions hereof and in reliance upon the representations, warranties and
agreements herein contained, at the Closing, Wireless shall sell, transfer,
assign, convey and deliver to THC (or its qualified designee), free and clear of
all Liens (other than Liens securing the indebtedness to be assumed by THC (or
its qualified designee) pursuant to Section 2.2), and the Company and/or THC, as
applicable, agrees to purchase, acquire and accept from Wireless, a
disaggregated 15 MHz of each of the Wireless Licenses in the respective
frequencies identified on Schedule I (the "Disaggregated Licenses").
                                           ----------------------

     2.2  Payment of Consideration. Upon the terms and subject to the conditions
          ------------------------
hereof and in reliance upon the representations, warranties and agreements
herein contained, at the Closing, in consideration of the assignment of the
Disaggregated Licenses, the Company shall do the following (collectively, the
"Purchase Price"):
 --------------

          (1)  the Company shall cause THC (or its qualified designee) to
assume the FCC Debt on such terms and conditions in accordance with Section
7.2(7) below;

          (2)  the Company shall issue, sell and deliver to Wireless (i) Five
Hundred Forty-Five and 20/100 (545.20) shares of Series C Preferred Stock, par
value $.01 per share ("Series C Preferred Stock"), of the Company, and (ii) Five
                       ------------------------
Hundred Thirty and 40/100 (530.40) shares of Class A Voting Common Stock, par
value $.01 per share ("Voting Common Stock"), of the Company, subject to
                       -------------------
adjustment for any Changes in Company Capitalization; and

          (3)  the Company shall reimburse Wireless for (i) the Monroe
Reimbursement, and (ii) all interest (including all accrued and/or "suspended"
interest, but not including interest paid through advances pursuant to Section
6.5 below) related to the Disaggregated Licenses that Wireless has paid, as of
the Closing, to the FCC (the "FCC Paid Interest"), each of which is further
                              -----------------
detailed on Schedule 2.2(3).
            ---------------

     2.3  Restrictive Legends. Each certificate representing Securities
          -------------------
(including the Securities
<PAGE>

originally issued hereunder or delivered upon conversion of the Series C
Preferred Stock, or delivered in substitution or exchange for any of the
foregoing) will bear a legend reading substantially as follows until such
Securities have been sold pursuant to an effective registration statement under
the Securities Act, Rule 144 under the Securities Act, or an opinion of counsel
reasonably satisfactory in form and substance to the Company and otherwise in
full compliance with any other applicable restrictions on transfer, including
those contained in this Agreement and the Stockholders Agreements:

               (a) "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A
STOCKHOLDERS' AGREEMENT DATED AS OF JULY 17, 1998, A COPY OF WHICH IS ON FILE AT
THE OFFICES OF THE COMPANY AND WILL BE FURNISHED BY THE COMPANY TO THE HOLDER
HEREOF UPON WRITTEN REQUEST. SUCH STOCKHOLDERS' AGREEMENT PROVIDES, AMONG OTHER
THINGS, FOR THE GRANTING OF CERTAIN RESTRICTIONS ON THE SALE, TRANSFER, PLEDGE,
HYPOTHECATION OR OTHER DISPOSITION OF THE SHARES REPRESENTED BY THIS
CERTIFICATE, AND THAT UNDER CERTAIN CIRCUMSTANCES, THE HOLDER HEREOF MAY BE
REQUIRED TO SELL THE SHARES REPRESENTED BY THIS CERTIFICATE. BY ACCEPTANCE OF
THIS CERTIFICATE, EACH HOLDER HEREOF AGREES TO BE BOUND BY THE PROVISIONS OF
SUCH STOCKHOLDERS' AGREEMENT. THE COMPANY RESERVES THE RIGHT TO REFUSE TO
TRANSFER THE SHARES REPRESENTED BY THIS CERTIFICATE UNLESS AND UNTIL THE
CONDITIONS TO TRANSFER SET FORTH IN SUCH STOCKHOLDERS' AGREEMENT HAVE BEEN
FULFILLED"; AND

               (b) "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE BEEN
ACQUIRED FOR INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED (THE 'ACT'), OR UNDER ANY STATE SECURITIES OR 'BLUE SKY' LAWS.
SAID SECURITIES MAY NOT BE SOLD, TRANSFERRED, ASSIGNED, PLEDGED, HYPOTHECATED OR
OTHERWISE DISPOSED OF, UNLESS AND UNTIL REGISTERED UNDER THE ACT AND THE RULES
AND REGULATIONS THEREUNDER AND ALL APPLICABLE STATE SECURITIES OR 'BLUE SKY'
LAWS OR EXEMPTED THEREFROM UNDER THE ACT AND ALL APPLICABLE STATE SECURITIES OR
'BLUE SKY' LAWS."

                                  ARTICLE III

                                    CLOSING
                                    -------

     3.1 Time and Place of Closing. Upon the terms and subject to the conditions
         -------------------------
hereof, the closing of the Transactions (the "Closing") shall take place at the
                                              -------
offices of McDermott, Will & Emery, 28 State Street, Boston, MA at 10:00 a.m.
local time on the twelfth business day
<PAGE>

following the date of receipt of the last Consent required by subsections (1)
through (3) of Section 7.1, or at such other place and/or time and/or on such
other date as the parties may agree or as may be necessary to permit the
fulfillment or waiver of the conditions set forth in Article VII (the "Closing
                                                                       -------
Date").
- -----

     3.2 Closing Actions and Deliveries. Upon the terms and subject to the
         ------------------------------
satisfaction or waiver by the appropriate party, if applicable, of the
conditions set forth in Article VII, to effect the purchase and sale of the
Disaggregated Licenses and the issuance of the Securities and the delivery of
the Monroe Reimbursement and the FCC Paid Interest in consideration therefor,
the parties shall on the Closing Date take the following actions:

          (1) Assignment of Licenses. Wireless shall execute and deliver to the
              ----------------------
Company one or more instruments of assignment, substantially in the form of
Exhibit A, sufficient to assign to THC (or its qualified designee) the
- ---------
Disaggregated Licenses (such assignment being herein referred to as the
"Disaggregated License Transfer").
 ------------------------------

          (2) Delivery of Securities and Reimbursements. The Company shall
              -----------------------------------------
deliver to Wireless by wire transfer or other form of immediately available
funds the Monroe Reimbursement and the FCC Paid Interest, and certificates, duly
executed by authorized signatories of the Company, representing the Securities
to be issued to Wireless in accordance with the terms of Section 2.2.

          (3) Assumption of Indebtedness. (a) The Company shall cause THC (or
              --------------------------
its qualified designee) to execute and deliver to Wireless or the FCC, as the
case may be, an instrument of assumption by THC (or its qualified designee) of
the FCC Debt pursuant to Section 2.2 and in accordance with Section 7.2(7)
below; and (b) Wireless shall receive evidence of cancellation of the FCC Debt
or release from liability therefrom, in form and substance reasonably
satisfactory to Wireless. Except for the specific assumption of the FCC Debt by
THC (or its qualified designee) pursuant to this Section, the Company shall not
assume or have any responsibility with respect to any obligation or liability of
Wireless whatsoever (singularly, an "Excluded Liability").

          (4) Other Deliveries. The parties shall execute and deliver or cause
              ----------------
to be executed and delivered all other documents, instruments, opinions and
certificates contemplated by this Agreement, the Security Agreement, the Pledge
Agreement or the Stockholders Agreements to be delivered at the Closing or
necessary and appropriate in order to consummate the Transactions contemplated
to be consummated on the Closing Date.
<PAGE>

          3.3 Payment of Transfer Taxes. The Company shall pay or cause to be
              -------------------------
paid at the Closing or, if due thereafter, promptly when due, all gross receipts
taxes, gains taxes (including, without limitation, real property gains tax or
other similar taxes), transfer taxes, sales taxes, stamp taxes, and any other
taxes, but excluding any Federal, State or local income taxes payable in
connection with the transfer of the Disaggregated Licenses.

                                  ARTICLE IV

                  REPRESENTATIONS AND WARRANTIES OF WIRELESS
                  ------------------------------------------

Wireless represents and warrants to the Company as follows:

     4.1    Organization, Power and Authority.
            ---------------------------------

          (1) It is a corporation duly organized, validly existing and in good
standing under the laws of its jurisdiction of organization and has the
requisite power and authority to own, lease and operate its properties and to
carry on its business as now being conducted.

          (2) It has the requisite power and authority to execute, deliver and
perform this Agreement, the Security Agreement, each of the Stockholders
Agreements and each other instrument, document, certificate and agreement
required or contemplated to be executed, delivered and performed by it hereunder
and thereunder to which it is or will be a party.

          (3) It is duly qualified to do business in each jurisdiction where the
character of its properties owned or held under lease or the nature of its
activities makes such qualification necessary other than any such jurisdiction
in which the failure to be so qualified would not have a Material Adverse Effect
on it or materially adversely affect the Transactions or its ability to perform
its obligations under this Agreement, the Security Agreement and the
Stockholders Agreements.

          (4) The execution and delivery of this Agreement, the Security
Agreement and the Stockholders Agreements by it and the consummation of the
Transactions by it have been duly and validly authorized by its Board of
Directors (or equivalent body) and no other proceedings on its part which have
not been taken (including, without limitation, approval of its stockholders,
partners or members) are necessary to authorize this Agreement, the Security
Agreement and the Stockholders Agreements or to consummate the Transactions.

          (5) This Agreement has been duly executed and delivered by it and
constitutes its valid and binding obligation, enforceable against it in
accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity. The Stockholders Agreements shall be duly executed and
delivered by it at the Closing and the Security
<PAGE>

Agreement shall be duly executed and delivered as required under Section 6.5(2)
below and, upon such execution and delivery, each shall constitute its valid and
binding obligation, enforceable against it in accordance with their terms,
except as such enforceability may be limited by bankruptcy, insolvency,
moratorium or other similar laws affecting or relating to enforcement of
creditors' rights generally and may be subject to general principles of equity.

               (6) As of the Closing Date, after giving effect to the
Transactions, it is not in breach of any obligation under this Agreement, the
Security Agreement or either of the Stockholders Agreements.

          4.2 Consents; No Conflicts. Neither the execution, delivery and
              ----------------------
performance by it of this Agreement, the Security Agreement or the Stockholders
Agreements nor the consummation of the Transactions will (a) conflict with, or
result in a breach or violation of, any provision of its organizational
documents; (b) except as set forth on Schedule 4.2, constitute, with or without
the giving of notice or passage of time or both, a breach, violation or default,
create a Lien (except as contemplated by the Security Agreement), or give rise
to any right of termination, modification, cancellation, prepayment or
acceleration, under (i) any Law or License or (ii) any note, bond, mortgage,
indenture, lease, agreement or other instrument, in each case which is
applicable to or binding upon it or any of its assets; or (c) require any
Consent, other than those set forth on Schedule 4.2 or the approval of its
                                       ------------
members, managers or similar constituent bodies, as the case may be (which
approvals have been obtained), except in each case, where such breach,
violation, default, Lien, right, or the failure to obtain or give such Consent
would not have a Material Adverse Effect on it or materially adversely affect
the Transactions or its ability to perform its obligations under this Agreement.
To its knowledge, except as set forth on Schedule 4.2, there is no fact relating
                                         ------------
to it or its Affiliates that would be reasonably expected to prevent it from
consummating the Transactions or performing its obligations under the
Stockholders Agreements or disqualify the Company from obtaining the Consents
(including without limitation, FCC Consent) required in order to consummate the
Disaggregated License Transfer as provided for in this Agreement.

          4.3 Litigation. Except as set forth on Schedule 4.3, there is no
              ----------                         ------------
action, proceeding or investigation pending or, to its knowledge, threatened
against it or any of its properties or assets that would be reasonably expected
to have an adverse effect on its ability to consummate the Transactions or to
fulfill its obligations under this Agreement, the Security Agreement or the
Stockholders Agreements, or which seeks to prevent or challenge the
Transactions.

          4.4 FCC Compliance. Assuming the Company utilizes a control group that
              --------------
complies with FCC Law Section 24.709(b)(3)(iii) and otherwise complies with all
applicable FCC Laws, Wireless' contemplated ownership in the Company as a result
of closing pursuant to this Agreement will be less than twenty-five percent
(25%) and shall not limit the Company's (a) eligibility to hold PCS licenses,
either generally or with respect to the Disaggregated Licenses, or (b)
qualification with all FCC eligibility rules governing the Disaggregated
Licenses including (i) designated entity status generally, (ii) entitlement to
the preferred interest rate, bid credit and installment payment provisions
currently in effect for the Disaggregated Licenses, (iii) foreign
<PAGE>

ownership restrictions and (iv) the FCC's CMRS spectrum cap.

          4.5 Brokers. It has not employed any broker, finder or investment
              -------
banker or incurred any liability for any brokerage fees, commissions or finder's
fees in connection with the Transactions.

          4.6 Disaggregated Licenses. It is the authorized legal holder, free
              ----------------------
and clear of any Liens (other than Liens securing the indebtedness to be assumed
by THC (or its qualified designee) pursuant to Section 2.2), of the Wireless
Licenses (and the Disaggregated Licenses as of Closing), true and correct copies
of which are attached to Schedule I. The Wireless Licenses are, and on the
                         ----------
Closing Date each of the Disaggregated Licenses will be, valid and in full force
and effect. Except as set forth on Schedule 4.6 and for proceedings affecting
                                   ------------
the PCS or wireless communications services industry generally, there is not
pending, nor to the knowledge of Wireless, threatened against Wireless or
against the Wireless Licenses (or the Disaggregated Licenses as of Closing), any
application, action, petition, objection or other pleading, or any proceeding
with the FCC which questions or contests the validity of, or seeks the
revocation, nonrenewal or suspension of, any of the Wireless Licenses (or any of
the Disaggregated Licenses as of Closing), which seeks the imposition of any
modification or amendment with respect thereto, or which would have a Material
Adverse Effect on the ability of the Company to employ the Disaggregated
Licenses in its business. The Wireless Licenses are not, and as of Closing the
Disaggregated Licenses will not be, subject to any conditions other than those
appearing on the face of the Licenses themselves and those imposed by FCC Law.

          4.7 No Distribution. It is acquiring the Securities to be acquired by
              ---------------
it hereunder for the purpose of investment and not with a view to or for sale in
connection with any distribution thereof (other than in compliance with the
Securities Act and all applicable state securities laws).

          4.8 Investor Acknowledgments.
              ------------------------

               (1) It is an "accredited investor" as defined in Regulation D of
the Securities Act. Its representatives have been provided an opportunity to ask
questions of, and have received answers thereto from, the Company and its
representatives regarding the terms and conditions of its acquisition of the
Securities, and the Company and its proposed business generally, and have
obtained all additional information requested by it to verify the accuracy of
all information furnished to it in connection with such purchase.

               (2) It has such knowledge and experience in financial and
business affairs that it is capable of evaluating the merits and risks of
acquiring the Securities it is acquiring hereunder.

               (3) It is not relying on and acknowledges that no representation
is being made by the Company or any of its officers, employees, Affiliates,
agents or representatives, except for representations and warranties expressly
set forth in this Agreement and the Stockholders Agreements, and, in particular,
it is not relying on, and acknowledges that no representation is being made in
respect of, (x) any projections, estimates or budgets delivered to or made
available to them of future revenues, expenses or expenditures, or future
results of operations and (y) any other information or
<PAGE>

documents delivered or made available to it or its representatives, except for
representations and warranties expressly set forth in this Agreement and the
Stockholders Agreements.

          (4)  In deciding to invest in the Company, it has relied exclusively
on the representations and warranties expressly set forth in this Agreement and
the Stockholders Agreements, investigations made by itself and its
representatives and its and such representatives' knowledge of the industry in
which the Company proposes to operate. Based solely on such representations and
warranties and such investigations and knowledge, it has determined that the
Securities it is acquiring are a suitable investment for it.


                                   ARTICLE V

                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY
                 ---------------------------------------------

The Company represents and warrants to Wireless as follows:

     5.1 Organization, Power and Authority.
         ---------------------------------

          (1)  The Company is a corporation duly organized, validly existing and
in good standing under the laws of the State of Delaware and has the requisite
corporate power and authority to own, lease and operate its properties and to
carry on its business as now being conducted and proposed to be conducted. The
Company has furnished to Wireless a true and correct copy of its Certificate of
Incorporation and Bylaws, as in effect on the date hereof and as of the Closing
Date.

          (2)  It has the requisite corporate power and authority to execute,
deliver and perform this Agreement, the Security Agreement and each of the
Stockholders Agreements, and each other instrument, document, certificate and
agreement required or contemplated to be executed, delivered and performed by it
hereunder and thereunder to which it is or will be a party.

          (3)  The Company is duly qualified to do business in each jurisdiction
where the character of its properties owned or held under lease or the nature of
its activities makes such qualification necessary other than any such
jurisdiction in which the failure to be so qualified would not have a Material
Adverse Effect on the Company or materially adversely affect the Transactions or
its ability to perform its obligations under this Agreement, the Security
Agreement and the Stockholders Agreements.

          (4)  The execution and delivery of this Agreement and the Security
Agreement by the Company and the consummation of the Transactions by the Company
have been duly and validly authorized by the Board of Directors of the Company
and no other proceedings on the part of the Company which have not been taken
(including,
<PAGE>

without limitation, approval of its shareholders) are necessary to authorize
this Agreement or to consummate the Transactions.

               (5)  This Agreement and the Stockholders Agreements have been
duly executed and delivered by the Company and constitute the valid and binding
obligation of the Company, enforceable against it in accordance with their
terms, except as such enforceability may be limited by bankruptcy, insolvency,
moratorium or other similar laws affecting or relating to enforcement of
creditors' rights generally and may be subject to general principles of equity.
The Security Agreement shall be duly executed and delivered by the Company as
required under Section 6.5(2) below and, upon such execution and delivery, shall
constitute its valid and binding obligation, enforceable against it in
accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity.

               (6)  As of the Closing, after giving effect to the Transactions,
the Company is not in breach of any obligation under this Agreement or either of
the Stockholders Agreements.

     5.2  Consents; No Conflicts. Neither the execution, delivery and
          ----------------------
performance by the Company of this Agreement, the Security Agreement and the
Stockholders Agreements nor the consummation of the Transactions will (a)
conflict with, or result in a breach or violation of, any provision of the
Company's organizational documents; (b) constitute, with or without the giving
of notice or passage of time or both, a breach, violation or default, create a
Lien, or give rise to any right of termination, modification, cancellation,
prepayment or acceleration, under (i) any Law or License, or (ii) any note,
bond, mortgage, indenture, lease, agreement or other instrument, in each case
which is applicable to or binding upon the Company or any of its assets; or (c)
require any Consent on the part of the Company, other than those set forth on
Schedule 5.2 or the approval of the Company's Board of Directors (which approval
- ------------
has been obtained), except in each case where such breach, violation, default,
Lien, right, or the failure to obtain or give such Consent would not have a
Material Adverse Effect on it or materially adversely affect the Transactions,
its ability to perform its obligations under this Agreement, the Security
Agreement or the Stockholders Agreements or the operation of the Company's
business after the Closing Date. To its knowledge, there is no fact relating to
it or its Affiliates that would be reasonably expected to prevent it from
consummating the Transactions or performing its obligations under this
Agreement, the Security Agreement or the Stockholders Agreements or disqualify
the Company from obtaining the Consents (including without limitation, FCC
Consent) required in order to consummate the Disaggregated License Transfer as
provided for in this Agreement.

     5.3  Litigation. There is no action, proceeding or investigation pending
          ----------
or, to the knowledge of the Company, threatened against the Company or any of
its properties or assets that would have an adverse effect on its ability to
consummate the Transactions or to fulfill its obligations under this Agreement,
the Security Agreement or the Stockholders Agreements, or to operate its
business after the Closing Date, or which seeks to prevent or challenge the
<PAGE>

Transactions. There is no judgment, decree, injunction, rule or order
outstanding against the Company which would limit in any material respect the
ability of the Company to operate its business in the manner currently
contemplated.

     5.4 FCC Compliance. THC (or its qualified designee) complies with all
         --------------
eligibility rules issued by the FCC to hold C Block broadband PCS licenses,
including without limitation, FCC rules on foreign ownership and the CMRS
spectrum cap.

     5.5 Brokers. The Company has not employed any broker, finder or investment
         -------
banker or incurred any liability for any brokerage fees, commissions or finder's
fees in connection with the Transactions.

     5.6 Capitalization. As of the execution date hereof, the authorized capital
         --------------
stock of the Company consists of 700,000 shares of Voting Common Stock, 700,000
shares of Non-Voting Common Stock, ten shares of Voting Preference Stock, 1,000
shares of Class C Common Stock, 3,000 shares of Class D Common Stock, 70,000
shares of Series A Preferred Stock, 140,000 shares of Series B Preferred Stock,
140,000 shares of Series C Preferred Stock, 35,000 shares of Series D Preferred
Stock, 20,000 shares of Series E Preferred Stock, 35,000 shares of Series F
Preferred Stock and 70,000 shares of Senior Common Stock. As of the execution
date hereof, the Company has the issued and outstanding shares of Preferred
Stock and Common Stock set forth on Schedule 5.6.

     5.7 Shares. The Securities being issued to Wireless hereunder, when issued
         ------
and paid for pursuant to the terms of this Agreement, will be duly authorized,
validly issued, fully paid and nonassessable, and will be free of any Liens
caused or created by the Company, except as set forth in the Stockholders
Agreements and the Restated Certificate. The shares of Common Stock issued upon
conversion of the Series C Preferred Stock, when issued pursuant to the terms of
the Series C Preferred Stock, will be validly issued, fully paid and
nonassessable, and will be free of any Liens caused or created by the Company,
except as set forth in the Stockholders Agreements and the Restated Certificate.

     5.8 Offering of Securities. (a) Neither the Company nor any Person acting
         ----------------------
on its behalf has offered the Securities or any similar equity securities of the
Company for sale to, or solicited any offers to buy Securities or any similar
equity securities of the Company from, any Person, other than a limited number
of other "accredited investors" (as defined in Rule 501(a) under the Securities
Act).

               (b)  Neither the Company nor any Person acting on its behalf
will, directly or indirectly, take any action which might subject the offering,
issuance or sale of the Securities to the registration and prospectus delivery
requirements of Section 5 of the Securities Act.

               (c)  Assuming the accuracy of the representations and warranties
of Wireless contained in Sections 4.7 and 4.8, each of the offering and sale of
Securities under this Agreement to Wireless complies with all applicable
requirements of federal and state securities laws.
<PAGE>

     5.9 Stockholders Agreements. The Company has furnished to Wireless a true
         -----------------------
and complete copy of each of the Stockholders Agreements as in effect on the
date hereof.

                                  ARTICLE VI

                                   COVENANTS
                                   ---------

     6.1 Consummation of Transactions. Each party shall use all commercially
         ----------------------------
reasonable efforts to take, or cause to be taken, all actions, and to do, or
cause to be done, all things necessary, proper or advisable and consistent with
applicable law to carry out all of their respective obligations under this
Agreement, the Security Agreement and the Stockholders Agreements to consummate
the Transactions, which efforts shall include, without limitation, the
following:

               (1)  The parties shall use all commercially reasonable efforts to
cause the Closing to occur and the Transactions to be consummated in accordance
with the terms hereof, and, without limiting the generality of the foregoing, to
obtain all necessary Consents including, without limitation, the approval of
this Agreement and the Transactions by all Governmental Authorities and
agencies, including the FCC, and make all filings with and to give all notices
to third parties which may be necessary or reasonably required in order for the
parties to consummate the Transactions. Wireless shall make, and the Company
shall cause THC (or its qualified designee) to make, filings with the FCC to
obtain FCC approval of the license transfers contemplated hereunder no later
than ten (10) days following the date on which this Agreement is fully executed
by each of Wireless and the Company.

               (2)  Each party shall furnish to the other parties all
information concerning such party and its Affiliates reasonably required for
inclusion in any application or filing to be made by Wireless or the Company or
any other party in connection with the Transactions or otherwise to determine
compliance with applicable FCC Rules.

               (3)  Upon the request of any other party, each party shall
forthwith execute and deliver, or cause to be executed and delivered, such
further instruments of assignment, transfer, conveyance, endorsement, direction
or authorization and other documents as may reasonably be requested by such
party in order to effectuate the purposes of this Agreement and the Stockholders
Agreements.

               Nothing in this Agreement shall be construed to require the
parties to consummate the Closing if any regulatory approval would require that
it (i) divest or hold separate any of its assets existing as of the date hereof
other than as contemplated by this Agreement and the Stockholders Agreements, or
(ii) otherwise take or commit to take any action that limits its freedom of
action in any material respect with respect to any of its businesses, product
lines or assets. In addition, the Company shall not be required to consummate
the Closing if the FCC
<PAGE>

build-out requirements for any of the Disaggregated Licenses exceeds those
imposed by the FCC with regard to (A) holders of 10 MHz licenses, or (B) fifty
percent (50%) of the Pops required under the original 30 MHz licenses (e.g., the
Company will not be required to cover more than 1/6 of the Pops in any area
covered by any Disaggregated License within the first five (5) years following
the license grant date, independent of any other licensee's obligations).

     6.2 Confidentiality.
         ---------------

               (1)  Each party shall, and shall cause each of its Affiliates,
and its and their respective shareholders, members, managers, directors,
officers, employees and agents (collectively, "Representatives") to, keep secret
                                               ---------------
and retain in strictest confidence any and all Confidential Information relating
to any other party that it receives in connection with the negotiation or
performance of this Agreement, and shall not disclose such Confidential
Information, and shall cause its Representatives not to disclose such
Confidential Information, to anyone except the receiving party's Affiliates and
Representatives and any other Person that agrees in writing to keep in
confidence all Confidential Information in accordance with the terms of this
Section 6.2. Until the Closing, each party agrees to use Confidential
Information received from another party only (i) to evaluate its interest in
pursuing the Transactions and (ii) to pursue such Transactions, but not for any
other purpose. All Confidential Information furnished pursuant to this Agreement
shall be returned promptly to the party to whom it belongs upon request by such
party. Upon the Closing, the provisions of this Section 6.2 shall terminate and
the obligations of the parties in respect of Confidential Information shall be
governed by Section 7.12 of the Stockholders Agreement.

               (2)  The obligations set forth in Section 6.2(1) shall be
inoperative with respect to Confidential Information that (i) is or becomes
generally available to the public other than as a result of disclosure by the
receiving party or its Representatives, (ii) was available to the receiving
party on a non-confidential basis prior to its disclosure to the receiving
party, or (iii) becomes available to the receiving party on a non-confidential
basis from a source other than the providing party or its agents, provided that
such source is not known by the receiving party to be bound by a confidentiality
agreement with the providing party or the Representatives.

               (3)  To the fullest extent permitted by law, if a party or any of
its Affiliates or Representatives breaches, or threatens to commit a breach of,
this Section 6.2, the party whose Confidential Information shall be disclosed,
or threatened to be disclosed, shall have the right and remedy to have this
Section 6.2 specifically enforced by any court having jurisdiction, it being
acknowledged and agreed that money damages will not provide an adequate remedy
to such party. Nothing in this Section 6.2 shall be construed to limit the right
of any party to collect money damages in the event of breach of this Section
6.2.

               (4)  Anything else in this Agreement or the Stockholders
Agreements notwithstanding, each party shall have the right to disclose any
information, including
<PAGE>

Confidential Information of the other party or such other party's Affiliates, in
any filing with any regulatory agency, court or other authority or any
disclosure to a trustee of public debt of a party to the extent that the
disclosing party determines in good faith that it is required by Law, regulation
or the terms of such debt to do so, provided that any such disclosure shall be
as limited in scope as possible and shall be made only after giving the other
party as much notice as practicable of such required disclosure and an
opportunity to contest such disclosure if possible.

     6.3  Certain Covenants. From and after the execution and delivery of this
          -----------------
Agreement to and including the Closing Date, Wireless shall:

               (1) Comply in all material respects with all applicable Laws,
including all such Laws relating to, or that would be reasonably expected to
relate to, the Disaggregated Licenses or their use;

               (2) Use commercially reasonable efforts to maintain the
Disaggregated Licenses in full force and effect;

               (3) Except to effect the transfer of the Disaggregated Licenses
to the Company as contemplated hereunder, not (i) sell, transfer, assign or
dispose of, or offer to, or enter into any agreement, arrangement or
understanding to, sell, transfer, assign or dispose of any of the Disaggregated
Licenses or any interest therein, or negotiate therefor, or (ii) create, incur
or suffer to exist any Lien of any nature whatsoever relating to any of the
Disaggregated Licenses or any interest therein (other than Liens securing the
indebtedness to be assumed by THC (or its qualified designee) pursuant to
Section 2.2). Without limiting the foregoing, Wireless shall not incur any
material obligation or liability, absolute or contingent, relating to or
affecting the Disaggregated Licenses or their use; provided that Wireless shall
be free to borrow money on such terms that are consistent with this Section
6.3(3) for the sole purpose of making payments to satisfy the FCC Debt.

               (4) Give written notice to the other parties promptly upon the
commencement of, or upon obtaining knowledge of any facts that would give rise
to a threat of, any claim, action or proceeding commenced against or relating to
(i) it, its properties or assets, including the Wireless Licenses or their use,
and which could have a Material Adverse Effect on it or materially adversely
affect the Transactions, or (ii) the Wireless Licenses or their use;

               (5) Promptly after obtaining knowledge of the occurrence of, or
the impending or threatened occurrence of, any event which could cause or
constitute a material breach of any of its warranties, representations,
covenants or agreements contained in this Agreement, give notice in writing of
such event, or occurrence or impending or threatened event or occurrence, to the
other parties and use commercially reasonable efforts to prevent or to promptly
remedy such breach; and
<PAGE>

               (6) Cause the other parties to be advised promptly in writing of
(i) any event, condition or state of facts known to it, which has had or could
have a Material Adverse Effect on it, or materially adversely affect the
Wireless Licenses or their use or the Transactions (other than proceedings
affecting the PCS or wireless communications services industry generally), or
(ii) any claim, action or proceeding which seeks to enjoin the consummation of
the Transactions.

     6.4  Settlement with Century. The Company agrees that after the execution
          -----------------------
date hereof, Wireless (through its principle executive officers) will be free to
negotiate and settle outstanding claims with Century Telephone Enterprises,
Inc., a Louisiana corporation, and/or Century Personal Access Networks, Inc., a
Louisiana corporation (each a "Century Company"); provided that any such
settlement will be consistent with the terms set forth elsewhere in this
Agreement and will not have a Material Adverse Effect on any transactions
contemplated hereunder.

     6.5  Certain Advances for FCC Debt Interest Payments. After the execution
          -----------------------------------------------
date hereof, the Company agrees to make interest payments to the FCC or the
United States Department of the Treasury (the "Treasury") on behalf of Wireless
that may become due under the FCC Debt prior to Closing (collectively,
"Advances").

               (1) No earlier than twenty (20) days nor later than ten (10) days
prior to a scheduled interest payment under the FCC Debt, Wireless shall deliver
a written notice to the Company that sets forth the payment due date (the
"Payment Due Date") and the exact amount of such interest payment ("Payment
Amount"). Upon receipt of such notice, the Company shall deliver funds to the
FCC or the Treasury in an amount equal to the Payment Amount via wire transfer
in immediately available funds no later than the Payment Due Date.

               (2) As a condition to the Company's agreement to make Advances
hereunder and prior to the Company's delivery of any Advance hereunder, Wireless
shall have executed and delivered to the Company the Security Agreement, the
form of which is attached hereto as Exhibit 6.5(a), and the stockholders holding
at least 50.1% of the issued and outstanding voting securities of Wireless, as
of the execution date hereof, shall have executed and delivered to the Company a
Stock Pledge Agreement, the form of which is attached hereto as Exhibit 6.5(b).

               (3) In the event this Agreement is terminated prior to Closing in
accordance with Section 9.1 below, Wireless shall, no later than twenty (20)
days after such termination, deliver via wire transfer in immediately available
funds to the Company funds in an amount equal to all of the Advances made by the
Company hereunder as of such termination date.

               (4) At Closing, Advances shall be deemed satisfied in full
without payment or transfer by Wireless.

     6.6  AT&T Approval. The Company agrees to use good faith commercially
          -------------
reasonable efforts to obtain the approval of AT&T Wireless required pursuant to
Sections 7.1(5) and 7.2(8)
<PAGE>

hereof.

     6.7  Company Securities and Information. Wireless agrees and acknowledges
          ----------------------------------
that each Century Company is a competitor or potential competitor in the
Company's business and as a condition to entering into this Agreement, the
Company and Wireless agree as follows: (1) Notwithstanding Wireless' ability, if
applicable, under the Stockholders Agreements to transfer after Closing shares
of Series C Preferred Stock or Voting Common Stock received by it pursuant to
Section 2.2(2) above, Wireless agrees that it shall not distribute any of such
shares of Series C Preferred Stock or Voting Common Stock to any Person,
including without limitation to any of its stockholders until (i) each Century
Company no longer holds any beneficial or record ownership interest in Wireless,
and (ii) all of Wireless' obligations and liabilities to each Century Company
are satisfied fully, each as contemplated and anticipated pursuant to Section
6.4 above (collectively, the "Century Settlement"). Except for the further
restrictions on transfer set forth in this Section, Wireless acknowledges that
nothing in this Section 6.7 shall amend or in any way alter any of the terms and
conditions set forth in either of the Stockholders Agreements that apply to
Wireless. (2) Commencing on the execution date hereof and terminating on the
date the Century Settlement is effective, Wireless shall not distribute to any
Person, including without limitation to any of its stockholders any Confidential
Information that it has received from the Company or any information concerning
or relating to the Company or any of its Affiliates that it receives from the
Company after the execution date hereof without the prior written consent of the
Company. This Section shall survive the Closing until all of its terms are
satisfied. Wireless acknowledges that nothing in this Section 6.7 shall amend or
in any way alter any of the terms and conditions set forth in Section 7.12 of
the Stockholders Agreement that apply to Wireless.

     6.8  FCC Filings. Wireless shall not make any filings with the FCC or agree
          -----------
to any proposal, settlement, amendment or alteration with the FCC with respect
to the Wireless Licenses, the Disaggregated Licenses or the FCC Debt without the
Company's prior written consent.



                                  ARTICLE VII

                              CLOSING CONDITIONS
                              ------------------

     7.1  Conditions to Obligations of All Parties. The obligation of each of
          ----------------------------------------
the parties to consummate the Transactions contemplated to occur at the Closing
shall be conditioned on the following, unless waived by each of the parties:

               (1) The Consent of the FCC to the Disaggregated License Transfer
shall have been obtained pursuant to a Final Order, free of any conditions
materially adverse to THC (or its qualified designee), the Company or Wireless.
For the purposes of this paragraph, "Final Order" means an action or decision
                                     -----------
that has been granted by the FCC as to which (i) no request for a stay or
similar request is pending, no stay is in effect, the action or decision has not
been vacated, reversed, set aside, annulled or suspended and any deadline for
filing such request that may be designated by statute or regulation has
<PAGE>

passed, (ii) no petition for rehearing or reconsideration or application for
review is pending and the time for the filing of any such petition or
application has passed, (iii) the FCC does not have the action or decision under
reconsideration on its own motion and the time within which it may effect such
reconsideration has passed and (iv) no appeal is pending including other
administrative or judicial review, or in effect and any deadline for filing any
such appeal that may be designated by statute or rule has passed.

               (2) All Consents by any Governmental Authority (other than the
Consents referred to in paragraphs (1) and (2) above) required to permit the
consummation of the Transactions, the failure to obtain or make which would be
reasonably expected to have a Material Adverse Effect on THC (or its qualified
designee), the Company or Wireless or to materially adversely affect the
Transactions or its ability to perform its obligations under this Agreement or
the Stockholders Agreements shall have been obtained or made.

               (3) No preliminary or permanent injunction or other order, decree
or ruling issued by a Governmental Authority, nor any statute, rule, regulation
or executive order promulgated or enacted by any Governmental Authority, shall
be in effect that would (i) impose material limitations on the ability of any
party to consummate the Transactions or prohibit such consummation, or (ii)
impair in any material respect the operation of the Company.

               (4) The Company or its Affiliate shall have received written
approval from AT&T Wireless to utilize the AT&T brand in connection with the
provision of mobile wireless services in the geographic area covered by the
Disaggregated Licenses on substantially the same terms and conditions as the
written approval granted to the Company by AT&T Wireless to use the brand name
in connection with the provision of mobile wireless services in the geographic
area covered by the licenses held by the Company.

     7.2  Conditions to Obligations of the Company. The obligation of the
          ----------------------------------------
Company to consummate the Transactions contemplated to occur at the Closing
shall be further conditioned upon the satisfaction or fulfillment, at or prior
to the Closing, of the following conditions by each of the other parties, unless
waived by the Company:

               (1) The representations and warranties of Wireless contained
herein and in the Stockholders Agreements shall be true and correct in all
material respects (except for representations and warranties that are qualified
as to materiality, which shall be true and correct), in each case when made and
at and as of the Closing (except for representations and warranties made as of a
specified date, which shall be true and correct as of such date) with the same
force and effect as though made at and as of such time, except for inaccuracies
in respect of the representations and warranties set forth in Section 4.3 and
the third sentence of Section 4.6 (disregarding any qualifications as to
materiality contained therein) that in the aggregate would not be reasonably
expected to have a Material Adverse Effect on Wireless or its ability to perform
its obligations under this Agreement or the Stockholders Agreements or to
materially adversely affect the
<PAGE>

Transactions.

               (2) Wireless shall have performed in all material respects all
agreements contained herein and in the Stockholders Agreements required to be
performed by it at or before the Closing.

               (3) An officer of Wireless shall have delivered to the Company a
certificate, dated the Closing Date, certifying as to the fulfillment of the
conditions set forth in paragraphs (1) and (2) above as to Wireless.

               (4) Wireless shall have furnished the Company with opinions of
counsel, each dated the Closing Date, in substantially the forms of Exhibits B
and C.

               (5) All corporate and other proceedings of Wireless in connection
with the Disaggregated License Transfer and the other Transactions, and all
documents and instruments incident thereto, shall be reasonably satisfactory in
form and substance to the Company, and Wireless shall have delivered to the
Company such receipts, documents, instruments and certificates, in form and
substance reasonably satisfactory to the Company, which the Company shall have
reasonably requested.

               (6) Wireless shall have executed and delivered to the Company a
counterpart signature page to each of the Stockholders Agreements.

               (7) THC's (or its qualified designee's) assumption of the FCC
Debt, as contemplated by Section 2.2 (1) above, shall be on terms and conditions
no less favorable than those existing as of the execution date hereof in the
promissory note(s) and security agreement(s) that evidence and secure the FCC
Debt.

               (8) AT&T Wireless shall have approved the Company's acquisition
of the Disaggregated Licenses on the terms and conditions set forth in this
Agreement.

     7.3  Conditions to the Obligations of Wireless. The obligation of Wireless
          -----------------------------------------
to consummate the Transactions contemplated to occur at the Closing shall be
further conditioned upon the satisfaction or fulfillment, at or prior to the
Closing, of the following conditions, unless waived by Wireless:

               (1) The representations and warranties of the Company contained
herein shall be true and correct in all material respects (except for
representations and warranties that are qualified as to materiality, which shall
be true and correct), in each case when made and at and as of the Closing
(except for representations and warranties made as of a specified date, which
shall be true and correct as of such date) with the same force and effect as
though made at and as of such time, except for inaccuracies in respect of the
representations and warranties set forth in Section 5.3 (disregarding any
qualifications as to materiality contained therein) that in the aggregate would
not be reasonably expected to have a Material Adverse Effect on the Company or
its ability to perform its obligations under this Agreement or to materially
adversely affect the Transactions.
<PAGE>

               (2)  The Company shall have performed in all material respects
all agreements contained herein required to be performed by it at or before the
Closing.

               (3)  An officer of the Company shall have delivered to Wireless a
certificate, dated the Closing Date, certifying as to the capitalization of the
Company as of the Closing Date and the fulfillment of the conditions set forth
in paragraphs (1) and (2) above as to the Company.

               (4)  The Company shall have furnished Wireless with an opinion of
counsel, dated the Closing Date, in substantially the form of Exhibit D.

               (5)  All corporate and other proceedings of the Company in
connection with the Disaggregated License Transfer and the other Transactions,
and all documents and instruments incident thereto, shall be reasonably
satisfactory in form and substance to Wireless, and the Company shall have
delivered to Wireless such receipts, documents, instruments and certificates, in
form and substance reasonably satisfactory to Wireless, which Wireless shall
have reasonably requested.

                                 ARTICLE VIII

                         SURVIVAL AND INDEMNIFICATION
                         ----------------------------

     8.1  Survival. The representations and warranties made in this Agreement
          --------
shall survive the Closing until the second anniversary thereof and shall
thereupon expire together with any right to indemnification in respect thereof
(except to the extent a written notice asserting a claim for breach of any such
representation or warranty and describing such claim in reasonable detail shall
have been given prior to such date to the party which made such representation
or warranty). The covenants and agreements contained herein to be performed or
complied with prior to the Closing shall expire at the Closing. The covenants
and agreements contained in this Agreement to be performed or complied with
after the Closing shall survive the Closing; provided that the right to
indemnification pursuant to this Article VIII in respect of a breach of a
representation or warranty shall expire on the second anniversary of the Closing
(except to the extent written notice asserting a claim thereunder and describing
such claim in reasonable detail shall have been given prior to such date to the
party from whom such indemnification is sought). After the Closing, the sole and
exclusive remedy of the parties for any breach or inaccuracy of any
representation or warranty contained in this Agreement, or any other claim
(whether or not alleging a breach of this Agreement) that arises out of the
facts and circumstances constituting such breach or inaccuracy, shall be the
indemnity provided in this Article VIII. For purposes of determining materiality
thresholds in Section 8.2 and 8.3 below, any qualifications as to materiality
contained elsewhere herein shall be disregarded.

     8.2  Indemnification by Wireless. Wireless shall indemnify and hold
          ---------------------------
harmless the Company and its Affiliates, and the shareholders, members,
managers, officers, employees, agents and/or the legal representatives of any of
them (each, a "Section 8.2 Indemnified Party"), against all liabilities and
               -----------------------------
expenses (including amounts paid in satisfaction of judgments, in compromise, as
fines and penalties, and as counsel fees) (collectively, "Losses") incurred by
                                                          ------
him
<PAGE>

or it in connection with the investigation, defense, or disposition of any
action, claim, charge, suit or other proceeding in which any Section 8.2
Indemnified Party may be involved or with which he or it may be threatened that
arises out of or results from (a) any representation or warranty of such
indemnifying party contained in this Agreement or in either of the Stockholders
Agreements being untrue in any material respect as of the date on which it was
made, (b) any material default by such indemnifying party or any of its
Affiliates in the performance of their respective obligations under this
Agreement and the Stockholders Agreements, except to the extent (but only to the
extent) any such Losses arise out of or result from the gross negligence or
willful misconduct of such Section 8.2 Indemnified Party or his or its
Affiliates, or (c) any Excluded Liability.

     8.3  Indemnification by the Company. The Company shall indemnify and hold
          ------------------------------
harmless Wireless and its Affiliates, and the shareholders, members, managers,
officers, employees, agents and/or the legal representatives of any of them
(each, a "Section 8.3 Indemnified Party"), against all Losses incurred by him or
          -----------------------------
it in connection with the investigation, defense, or disposition of any action,
suit or other proceeding in which any Section 8.3 Indemnified Party may be
involved or with which he or it may be threatened that arises out of or results
from (a) any representation or warranty of the Company contained in this
Agreement or in either of the Stockholders Agreements being untrue in any
material respect as of the date on which it was made or (b) any material default
by the Company or any of its Affiliates in the performance of their respective
obligations under this Agreement or in the Stockholders Agreements, except to
the extent (but only to the extent) any such Losses arise out of or result from
the gross negligence or willful misconduct of such Section 8.3 Indemnified Party
or his or its Affiliates.

     8.4  Procedures.
          ----------

               (1)  The terms of this Section 8.4 shall apply to any claim (a
"Claim") for indemnification under the terms of Sections 8.2 or 8.3. The Section
 -----
8.2 Indemnified Party or Section 8.3 Indemnified Party Indemnified Party (each,
an "Indemnified Party"), as the case may be, shall give prompt written notice of
    -----------------
such Claim to the indemnifying party (the "Indemnifying Party") under the
                                           ------------------
applicable Section, which party may assume the defense thereof, provided that
any delay or failure to so notify the Indemnifying Party shall relieve the
Indemnifying Party of its obligations hereunder only to the extent, if at all,
that it is materially prejudiced by reason of such delay or failure. The
Indemnified Party shall have the right to approve any counsel selected by the
Indemnifying Party and to approve the terms of any proposed settlement, such
approval not to be unreasonably delayed or withheld (unless such settlement
provides only, as to the Indemnified Party, the payment of money damages
actually paid by the Indemnifying Party and a complete release of the
Indemnified Party in respect of the claim in question). Notwithstanding any of
the foregoing to the contrary, the provisions of this Article VIII shall not be
construed so as to provide for the indemnification of any Indemnified Party for
any liability to the extent (but only to the extent) that such indemnification
would be in violation of applicable law or that such liability may not be
waived, modified or limited under applicable law, but shall be construed so as
to effectuate the provisions of this Article VIII to the fullest extent
permitted by law.
<PAGE>

               (2)  In the event that the Indemnifying Party undertakes the
defense of any Claim, the Indemnifying Party will keep the Indemnified Party
advised as to all material developments in connection with such Claim,
including, but not limited to, promptly furnishing the Indemnified Party with
copies of all material documents filed or served in connection therewith.

               (3)  In the event that the Indemnifying Party fails to assume the
defense of any Claim within ten business days after receiving written notice
thereof, the Indemnified Party shall have the right, subject to the Indemnifying
Party's right to assume the defense pursuant to the provisions of this Article
VIII, to undertake the defense, compromise or settlement of such Claim for the
account of the Indemnifying Party. Unless and until the Indemnified Party
assumes the defense of any Claim, the Indemnifying Party shall advance to the
Indemnified Party any of its reasonable attorneys' fees and other costs and
expenses incurred in connection with the defense of any such action or
proceeding. Each Indemnified Party shall agree in writing prior to any such
advancement that, in the event he or it receives any such advance, such
Indemnified Party shall reimburse the Indemnifying Party for such fees, costs
and expenses to the extent that it shall be determined that he or it was not
entitled to indemnification under this Article VIII.

               (4)  In no event shall an Indemnifying Party be required to pay
in connection with any Claim for more than one firm of counsel (and local
counsel) for each of the following groups of Indemnified Parties: (i) Wireless,
its Affiliates, and the shareholders, members, managers, officers, employees,
agents and/or the legal representatives of any of them; and (ii) the Company and
its Affiliates, and the shareholders, members, managers, officers, employees,
agents and/or the legal representatives of any of them.

     8.5  Registration Rights. Notwithstanding anything to the contrary in this
          -------------------
Article VIII, the indemnification and contribution provisions set forth in
Sections 5(e) and 5(f) of the Stockholders Agreement shall govern any claim made
with respect to the registration statements filed pursuant to Section 5 of the
Stockholders Agreement or sales made thereunder.

                                  ARTICLE IX

                                  TERMINATION
                                  -----------

     9.1  Termination. This Agreement may be terminated, and the Transactions
          -----------
abandoned, without further obligation of any party, except as set forth herein,
at any time prior to the Closing Date:

               (1)  by mutual written consent of the parties;

               (2)  by any party by written notice to the other parties, if the
Closing shall not have occurred on or before the later of March 23, 1999 or the
date the FCC C Block re-auction is held, but in no event later than June 3,
1999; provided that the party electing to exercise such right is not otherwise
in breach of its obligations under this Agreement;
<PAGE>

               (3)  by any party (provided that such party is not otherwise in
breach) if any other party has breached a material representation, warranty,
covenant or agreement set forth herein and fails to cure such breach within
thirty (30) days of written notice thereof (except that no cure period shall be
provided for a breach that by its nature cannot be cured); or

               (4)  by any party by written notice to the other parties, if the
consummation of the Transactions shall be prohibited by a final, non-appealable
order, decree or injunction of a court of competent jurisdiction.

     9.2  Effect of Termination. In the event of a termination of this
          ---------------------
Agreement, no party hereto shall have any liability or further obligation to any
other party to this Agreement, except as set forth in paragraph (2) below (and
with regard to Wireless, if applicable, its repayment obligations set forth in
Section 6.5(3) above), and except that nothing herein will relieve any party
from liability for any breach by such party of this Agreement.

               (1)  In the event of a termination of this Agreement pursuant to
Section 9.1, all provisions of this Agreement shall terminate, except Section
6.2 and Articles VIII and X.

               (2)  Whether or not the Closing occurs, all costs and expenses
incurred in connection with this Agreement and the Transactions shall be paid by
the party incurring such expenses.

                                   ARTICLE X

                           MISCELLANEOUS PROVISIONS
                           ------------------------

     10.1 Amendment and Modification. This Agreement may be amended, modified or
          --------------------------
supplemented only by written agreement of each of the parties.

     10.2 Waiver of Compliance; Consents. Any failure of any of the parties to
          ------------------------------
comply with any obligation, covenant, agreement or condition herein may be
waived by the party or parties entitled to the benefits thereof only by a
written instrument signed by the party granting such waiver, but such waiver or
failure to insist upon strict compliance with such obligation, covenant,
agreement or condition shall not operate as a waiver of, or estoppel with
respect to, any subsequent or other failure. Whenever this Agreement requires or
permits consent by or on behalf of any party hereto, such consent shall be given
in writing in a manner consistent with the requirement for a waiver of
compliance as set forth in this Section 10.2.

     10.3 Notices. All notices or other communications hereunder shall be in
          -------
writing and shall be given (and shall be deemed to have been duly given upon
receipt) by delivery in person, by facsimile transmission, or by registered or
certified mail (return receipt requested), postage prepaid, with an
acknowledgment of receipt signed by the addressee or an authorized
representative thereof, addressed as follows (or to such other address for a
party as shall be specified by like notice; provided that notice of a change of
address shall be effective only upon
<PAGE>

receipt thereof):

                  If to Wireless:

                           Wireless 2000, Inc.
                           Post Office Box 337
                           Marksville, Louisiana 71327
                           Attn: Joan Ducote, President
                           Fax: (318) 253-0721

                  With a copy to:

                           Charles S. Weems, III, Esquire
                           Gold, Weems, Bruser, Sues & Rundell
                           2001 MacArthur Drive, P.O. Box 6118
                           Alexandria, Louisiana 71307-6118


                  If to the Company:

                           TeleCorp PCS, Inc.
                           1101 17th Street, N.W.
                           Washington, D.C. 20036
                           Attn: General Counsel
                           Facsimile: (202) 833-4888


                  With a copy to:

                           Alicia M.V. Wyman, P.C.
                           McDermott, Will & Emery
                           28 State Street
                           Boston, MA 02109-1807

     10.4 Parties in Interest; Assignment. This Agreement is binding upon and is
          -------------------------------
solely for the benefit of the parties hereto and their respective permitted
successors, legal representatives and permitted assigns. Neither party may
assign its rights and obligations hereunder without the prior written consent of
the other party, except that the Company shall have the right to assign its
rights under this Agreement to the lenders (the "Lenders") named in the Credit
                                                 -------
Agreement, dated as of July 17, 1998, by and among the Company, the lenders
party thereto and the Chase Manhattan Bank, as Administrative Agent, TD
Securities (USA) Inc., as Syndication Agent, and Bankers Trust Company, as
Documentation Agent (the "Credit Agreement"), as security pursuant to the terms
of the Credit Agreement and the documents and instruments executed therewith, it
being understood that, in connection with any such assignment to the Lenders,
the Lenders shall not assume any obligations of the Company hereunder.
<PAGE>

     10.5   Applicable Law. This Agreement shall be governed by and construed in
            --------------
accordance with the laws of the State of New York without giving effect to the
conflicts of law principles thereof. The parties hereto hereby irrevocably and
unconditionally consent to submit to the non-exclusive jurisdiction of the
courts of the State of New York and of the United States of America located in
the County of New York, New York (the "New York Courts") for any litigation
                                       ---------------
arising out of or relating to this Agreement and the Transactions, waive any
objection to the laying of venue of any such litigation in the New York Courts
and agrees not to plead or claim in any New York Court that such litigation
brought therein has been brought in an inconvenient forum.

     10.6   Counterparts. This Agreement may be executed in two or more
            ------------
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

     10.7   Interpretation. The article and section headings contained in this
            --------------
Agreement are for convenience of reference only, are not part of the agreement
of the parties and shall not affect in any way the meaning or interpretation of
this Agreement. All pronouns and any variations thereof shall be deemed to refer
to the masculine, feminine or neuter, singular or plural, as the identity of the
antecedent Person or Person may require.

     10.8   Entire Agreement. This Agreement, the Security Agreement and the
            ----------------
Stockholders Agreements, including the exhibits and schedules hereto and the
certificates and instruments delivered pursuant to the terms of this Agreement,
the Security Agreement and the Stockholders Agreements, embody the entire
agreement and understanding of the parties hereto in respect of the
Transactions. There are no restrictions, promises, representations, warranties,
covenants or undertakings, other than those expressly set forth or referred to
herein or in the Security Agreement or the Stockholders Agreements. This
Agreement, the Security Agreement and the Stockholders Agreements supersede all
prior agreements and understandings between the parties with respect to such
Transactions.

     10.9   Publicity. So long as this Agreement is in effect, the parties agree
            ---------
to consult with each other in issuing any press release or otherwise making any
public statement with respect to the Transactions, and no party shall issue any
press release or make any such public statement prior to such consultation,
except as may be required by Law. No press release or other public statement by
the parties hereto shall disclose any of the financial terms of the Transactions
without the prior consent of the other parties, except as may be required by
Law. A breach of the provisions of this Section 10.9 by a party shall not give
rise to any right to terminate this Agreement.

     10.10  Specific Performance. The parties hereto agree that irreparable
            --------------------
damage would occur in the event that any of the provisions of this Agreement
were not performed in accordance with their specific terms or were otherwise
breached. It is accordingly agreed that the parties shall be entitled to an
injunction or injunctions to prevent breaches of this Agreement and to enforce
specifically the terms and provisions hereof in any New York Courts.

     10.11  Remedies Cumulative. All rights, powers and remedies provided under
            -------------------
this
<PAGE>

Agreement or otherwise available in respect hereof at law or in equity shall be
cumulative and not alternative, and the exercise or beginning of the exercise of
any thereof by any party shall not preclude the simultaneous or later exercise
of any other such right, power or remedy by such party.



                     [THIS SPACE LEFT INTENTIONALLY BLANK]
<PAGE>

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first above written.


                                        TELECORP PCS, INC.


                                        By:      /s/ Thomas H. Sullivan
                                            -------------------------------
                                            Name:  Thomas H. Sullivan
                                            Title: Executive Vice President


                                        WIRELESS 2000, INC.


                                        By:      /s/ Joan S. Ducote
                                            ------------------------------
                                            Name:  Joan S. Ducote
                                            Title: President
<PAGE>

                                                                      SCHEDULE I

                               Wireless Licenses
                               -----------------

- ---------------------------------------------------------------------------
     BTA                 Block                         Market
- ---------------------------------------------------------------------------
     B009                  C                      Alexandria, LA
- ---------------------------------------------------------------------------
     B238                  C                      Lake Charles, LA
- ---------------------------------------------------------------------------
     B304                  C                      Monroe, LA
- ---------------------------------------------------------------------------

                            Disaggregated Licenses
                            ----------------------

- ---------------------------------------------------------------------------
     BTA       Block          Frequency (MHz)          Market
- ---------------------------------------------------------------------------
     B009        C            1902.5-1910 MHz          Alexandria, LA
                              1982.5-1990 MHz
- ---------------------------------------------------------------------------
     B238        C            1902.5-1910 MHz          Lake Charles, LA
                              1982.5-1990 MHz
- ---------------------------------------------------------------------------
     B304        C            1902.5-1910 MHz          Monroe, LA
                              1982.5-1990 MHz
- ---------------------------------------------------------------------------
<PAGE>

                           United States of America
                       Federal Communications Commission

                          RADIO STATION AUTHORIZATION

                       Commercial Mobile Radio Services
                  Personal Communications Service - Broadband

[LOGO APPEARS HERE]                               Call Sign:  KNLF391
                                                  Market:     B009
                                                       ALEXANDRIA LA
WIRELESS 2000 INC
WIRELESS 2000 LLC                                   Channel Block: C
208 N. WASHINGTON
MARKSVILLE, LA 71351                         File Number:00194-CW-L-96


- --------------------------------------------------------------------------------
The licensee hereof is authorized, for the period indicated, to construct and
operate radio transmitting facilities in accordance with the terms and
conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory and all pertinent rules and regulations of the Federal Communications
Commission contained in the Title 47 of the U.S. Code of Federal Regulations.
- --------------------------------------------------------------------------------

     Initial Grant Date . . . . . . . . . . . . .      September 17, 1996

     Five-year Build Out Date . . . . . . . . . .      September 17, 2001

     Expiration Date . . . . . . . . . . . . . .       September 17, 2006

CONDITIONS
- ----------

Pursuant to Section 309(h) of the Communications Act of 1934, as amended, (47
U.S.C. (S) 309(b)), this license is subject to the following conditions: This
license does not vest in the licensee any right to operate a station nor any
right in the use of frequencies beyond the term thereof nor in any other manner
than authorized herein. Neither this license nor the right granted thereunder
shall be assigned or otherwise transferred in violation of the Communications
Act of 1934, as amended (47 U.S.C. (S) 151, et seq.). This license is subject in
terms to the right of use or control conferred by Section 706 of the
Communications Act of 1934, as amended (47 U.S.C. (S) 606).


Conditions continued on Page 2.


WAIVERS :
- -------

No waivers associated with this authorization.
- --------------------------------------------------------------------------------



- --------------------------------------------------------------------------------
Issue Date: September 17, 1996
FCC Form 463a.                                                       Page 1 of 2
<PAGE>

KNLF391                    WIRELESS 2000, INC.                 00194-CW-L-96



CONDITIONS:


This authorization is subject to the condition that, in the event that systems
using the same frequencies as granted herein are authorized in an adjacent
foreign territory (Canada/United States), future coordination of any base
station transmitters within 72 km (45 miles) of the United States/Canada border
shall be required to eliminate any harmful interference to operations in the
adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.


This authorization is conditioned upon the full and timely payment of all monies
due pursuant to Sections 1.2110 and 24.711 of the Commission's Rules and the
terms of the Commission's installment plan as set forth in the Note and Security
Agreement executed by the licensee. Failure to comply with this condition will
result in the automatic cancellation of this authorization.

















- --------------------------------------------------------------------------------
Issue Date: September 17, 1996                                       Page 2 of 2
FCC Form 463a
<PAGE>

                              United States of America
                      Federal Communications Commission

                         RADIO STATION AUTHORIZATION

                       Commercial Mobile Radio Services
                  Personal Communications Service - Broadband


[STAMP APPEARS HERE]                                   Call Sign:   KNLF392
                                                       Market:      B238
                                                            LAKE CHARLES, LA

WIRELESS 2000 INC
WIRELESS 2000 LLC                                           Channel Block: C
208 N. WASHINGTON
MARKSVILLE, LA 71351                                  File Number:00204-CW-L-96

- --------------------------------------------------------------------------------
The licensee hereof is authorized, for the period indicated, to construct and
operate radio transmitting facilities in accordance with the terms and
conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory and all pertinent rules and regulations of the Federal Communications
Commission contained in the Title 47 of the U.S. Code of Federal Regulations.

- --------------------------------------------------------------------------------
     Initial Grant Date . . . . . . . . . . . . .      September 17, 1996

     Five-year Build Out Date . . . . . . . . . .      September 17, 2001

     Expiration Date  . . . . . . . . . . . . . .      September 17, 2006
- --------------------------------------------------------------------------------
CONDITIONS
- ----------
Pursuant to Section 309(h) of the Communications Act of 1934, as amended, (47
U.S.C. ss. 309(b)), this license is subject to the following conditions: This
license does not vest in the licensee any right to operate a station nor any
right in the use of frequencies beyond the term thereof nor in any other manner
than authorized herein. Neither this license nor the right granted thereunder
shall be assigned or otherwise transferred in violation of the Communications
Act of 1934, as amended (47 U.S.C. ss. 151, et seq.). This license is subject in
terms to the right of use or control conferred by Section 706 of the
Communications Act of 1934, as amended (47 U.S.C. ss. 606).


Conditions continued on Page 2.

- --------------------------------------------------------------------------------
WAIVERS :
- -------
No waivers associated with this authorization.




- --------------------------------------------------------------------------------
Issue Date: September 17, 1996
FCC Form 463a.                                                       Page 1 of 2
<PAGE>

KNLF392                   WIRELESS 2000, INC.                      00204-CW-L-96



CONDITIONS:


This authorization is subject to the condition that, in the event that systems
using the same frequencies as granted herein are authorized in an adjacent
foreign territory (Canada/United States), future coordination of any base
station transmitters within 72 km (45 miles) of the United States/Canada border
shall be required to eliminate any harmful interference to operations in the
adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.


This authorization is conditioned upon the full and timely payment of all monies
due pursuant to Sections 1.2110 and 24.711 of the Commission's Rules and the
terms of the Commission's installment plan as set forth in the Note and Security
Agreement executed by the licensee. Failure to comply with this condition will
result in the automatic cancellation of this authorization.

















- --------------------------------------------------------------------------------
Issue Date: September 17, 1996                                       Page 2 of 2
FCC Form 463a
<PAGE>

                           United States of America
                       Federal Communications Commission

                          RADIO STATION AUTHORIZATION

                       Commercial Mobile Radio Services
                  Personal Communications Service - Broadband


   [STAMP APPEARS HERE]                                Call Sign:  KNLF393
                                                       Market:     B304
                                                          MONROE, LA

WIRELESS 2000 INC
WIRELESS 2000 LLC                                          Channel Block: C
208 N. WASHINGTON
MARKSVILLE, LA 71351                                   File Number:00205-CW-L-96


- --------------------------------------------------------------------------------
The licensee hereof is authorized, for the period indicated, to construct and
operate radio transmitting facilities in accordance with the terms and
conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory and all pertinent rules and regulations of the Federal Communications
Commission contained in the Title 47 of the U.S. Code of Federal Regulations.

- --------------------------------------------------------------------------------
     Initial Grant Date . . . . . . . . . . . . .      September 17, 1996

     Five-year Build Out Date . . . . . . . . . .      September 17, 2001

     Expiration Date  . . . . . . . . . . . . . .      September 17, 2006
- --------------------------------------------------------------------------------
CONDITIONS
- ----------
Pursuant to Section 309(h) of the Communications Act of 1934, as amended, (47
U.S.C. ss. 309(b)), this license is subject to the following conditions: This
license does not vest in the licensee any right to operate a station nor any
right in the use of frequencies beyond the term thereof nor in any other manner
than authorized herein. Neither this license nor the right granted thereunder
shall be assigned or otherwise transferred in violation of the Communications
Act of 1934, as amended (47 U.S.C. ss. 151, et seq.). This license is subject in
terms to the right of use or control conferred by Section 706 of the
Communications Act of 1934, as amended (47 U.S.C. ss. 606).


Conditions continued on Page 2.

- --------------------------------------------------------------------------------
WAIVERS :
- -------
No waivers associated with this authorization.



- --------------------------------------------------------------------------------
Issue Date: September 17, 1996
FCC Form 463a.                                                       Page 1 of 2
<PAGE>

KNLF393                   WIRELESS 2000, INC.                      00205-CW-L-96



CONDITIONS:


This authorization is subject to the condition that, in the event that systems
using the same frequencies as granted herein are authorized in an adjacent
foreign territory (Canada/United States), future coordination of any base
station transmitters within 72 km (45 miles) of the United States/Canada border
shall be required to eliminate any harmful interference to operations in the
adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.


This authorization is conditioned upon the full and timely payment of all monies
due pursuant to Sections 1.2110 and 24.711 of the Commission's Rules and the
terms of the Commission's installment plan as set forth in the Note and Security
Agreement executed by the licensee. Failure to comply with this condition will
result in the automatic cancellation of this authorization.

















- --------------------------------------------------------------------------------
Issue Date: September 17, 1996                                       Page 2 of 2
FCC Form 463a
<PAGE>

                                                                  SCHEDULE II

                     FCC Debt Related to Wireless Licenses
                     -------------------------------------
<PAGE>

                              September 11, 1998


Mr. Mark Martines
McDermott, Will & Emery
75 State Street
Boston, MA 02109-1807

         RE: Wireless 2000, Inc.

Dear Mark:

         In accordance with our recent telephone conversation I enclose herewith
a schedule showing current principal balances, suspension interest, payments
due, and amounts paid in July of this year, with respect to the licenses which
TeleCorp is to acquire from Wireless.

         I also enclose a financial management service memorandum from the
United States Treasury reflecting the amounts shown on the schedule. Note that
the Treasury memorandum reflects 100% of the Lake Charles debt, accruals and
payments, only one-half of which are to be assumed or paid by TeleCorp in our
transactions.

         I trust that this information will be sufficient for your purposes.
Please call me if you need further information or documentation.

         We look forward to receiving from you as early as possible revised
documents to consummate the transaction. In addition, as we discussed, Wireless
seeks agreement and confirmation that TeleCorp will make or advance the payments
due October 31, 1998, which would otherwise be reimbursed at closing, if we have
not closed by that date.

         With kindest regards,

                                        Sincerely,

                                        GOLD, WEEMS, BRUSER, SUES & RUNDELL


                                        By:  /s/ Charles S. Weems, III
                                           -------------------------------
                                           Charles S. Weems, III



CSWII/brp
Enclosures
<PAGE>

cc:  Ms. Joan Ducote
     P.O. Box 309
     Marksville, LA 71351

     Mr. Glenn A. Goudeau
     P.O. Box 539
     Cottonport, LA 71327
<PAGE>

                   WIRELESS 2000/TELECORP FINANCIAL SUMMARY

<TABLE>
<CAPTION>
                                               INTEREST         INTEREST
                        PRINCIPAL            PAYMENT MADE        PAYMENT
   LICENSE               BALANCE              JULY 1998        DUE 10/31/98
- -------------         -------------        ---------------   ---------------
<S>                   <C>                  <C>               <C>
Alexandria            $2,249,147.25        $ 69,903.69        $ 57,924.52
PBB009C                                                        (18,136.62)*

Lake Charles           2,365,590.82          80,770.78          67,721.50
PBB238C                                                        (25,837.68)*

Monroe PBB304C         2,834,452.20          88,072.27          72,975.73
                                                               (22,833.65)*

                      -------------        -----------        -------------


Totals                $7,449,190.27        $238,746.74        $198,621.75

                    to be assumed by   to be reimbursed by  to be assumed or
                         TeleCorp            TeleCorp       paid (reimbursed
                                                            if not advanced)
                                                              by TeleCorp
</TABLE>



                                     a)  * (suspension interest component due)
<PAGE>

November 9, 1998

To:   Mark J. Martines
      McDermott, Will & Emery

From: Joan S. Ducote
      Wireless 2000, Inc.

Enclosed are copies of the "First Modification of Installment Payment Plan Note
for Broadband PCS C-Block" for the three licenses held by Wireless 2000. These
modifications were made pursuant to the election notice filed on June 8th with
the FCC. You will notice that the copy of the Lake Charles (BTA 238)
modification agreement is signed and executed by the FCC. We have not yet
received executed copies of the Monroe and Alexandria (disaggregated licenses)
from the FCC. The original FCC notes are being forwarded to you directly from
David Nace's office. If you have any questions or need further information,
please contact me.


/s/ Joan S. Ducote
- ------------------

Joan S. Ducote
President

CC: Charles S. Weems
    David Nace
<PAGE>

                           United States of America
                       Federal Communications Commission

                          RADIO STATION AUTHORIZATION

                       Commercial Mobile Radio Services
                  Personal Communications Service - Broadband


WIRELESS 2000, INC.                                   Call Sign: KNLF391
WIRELESS 2000, LLC                                    Market: B009
208 N. WASHINGTON                                     ALEXANDRIA, LA
MARKSVILLE, LA 71351                                  Channel Block: C
                                                      File Number: 00194-CW-L-96

________________________________________________________________________________

The licensee hereof is authorized, for the period indicated, to construct and
operate radio transmitting facilities in accordance with the terms and
conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory, and all pertinent rules and regulations of the Federal Communications
Commission, contained in the Title 47 of the U.S. Code of Federal Regulations.

________________________________________________________________________________

         Initial Grant Date.........................September 17, 1996

         Five-year Build Out Date...................September 17, 2001

         Expiration Date............................September 17, 2006

________________________________________________________________________________

CONDITIONS:
- ----------

Pursuant to Section 309(h) of the Communications Act of 1934, as amended, (47
U.S.C. (S) 309(h)), this license is subject to the following conditions: This
license does not vest in the licensee any right to operate a station nor any
right in the use of frequencies beyond the term thereof nor in any other manner
than authorized herein. Neither this license nor the right granted thereunder
shall be assigned or otherwise transferred in violation of the Communications
Act of 1934, as amended (47 U.S.C. (S) 151, et seq). This license is subject in
terms to the right of use or control conferred by Section 706 of the
Communications Act of 1934, as amended (47 U.S.C. (S) 606).

Conditions continued on Page 2.

________________________________________________________________________________

WAIVERS:
- -------

No waivers associated with this authorization.

________________________________________________________________________________

Issue Date: September 17, 1996
<PAGE>

KNLF391                    WIRELESS 2000, INC.                     00194-CW-L-96


CONDITIONS:


This authorization is subject to the condition that, in the event that systems
using the same frequencies as granted herein are authorized in an adjacent
foreign territory (Canada/United States), future coordination of any base
station transmitters within 72 km (45 miles) of the United States/Canada border
shall be required to eliminate any harmful interference to operations in the
adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

This authorization is conditioned upon the full and timely payment of all monies
due pursuant to Sections 1.2110 and 24.711 of the Commission's Rules and the
terms of the Commission's installment plan as set forth in the Note and Security
Agreement executed by the licensee. Failure to comply with this condition will
result in the automatic cancellation of this authorization.
<PAGE>

                         Installment Payment Plan Note
  (Broadband Personal Communications Service, C Block): Auction Event No. 5)


US $4,707,517.50
Washington, D.C.                                             September 17, 1996

License No.: PBB009C
             -------

     FOR VALUE RECEIVED, the undersigned, Wireless 2000, Inc., a CORPORATION
("Maker"), promises to pay to the order of the FEDERAL COMMUNICATIONS
COMMISSION, an independent regulatory agency of the United States ("Payee" or
"Commission"), the principal sum of 4,707,517.50 DOLLARS ("Principal Amount"),
together with accrued interest, computed at the annual rate of seven percent
(7.00%) per annum, ("Annual Rate") on the unpaid Principal Amount hereof, from
the date of this Note until the date the entire Principal Amount has been paid
in full.

     Interest and principal shall be payable as set forth below and in
accordance with Schedule A attached hereto and made a part hereof:

     Interest only, at the Annual Rate from the date hereof until the last day
of the month ninety (90) days hence, shall be due and payable on December 31,
1996 in the amount of $94,795.22. Commencing December 31, 1996, Maker shall pay
interest only at the Annual Rate, in equal consecutive quarterly installments of
$82,381.56, due on the last day of the month and every ninety (90) days
thereafter from December 31, 1996 through September 30, 2002.

     Commencing December 31, 2002, Maker shall pay principal and interest in
equal quarterly installments of $339,880.77, due on the last day of each month
ninety (90) days hence through and including June 30, 2006.

     The entire unpaid Principal Amount, together with accrued and unpaid
interest thereon, and all remaining obligations of Maker hereunder, shall be due
and payable on September 17, 2006 ("Maturity Date").

     All interest shall be computed on the basis of a 360-day year for actual
days elapsed.

     All payments to be made hereunder, of principal, interest, costs, expenses,
or other sums due hereunder, shall be made to the holder of this Note in lawful
money of the United States of America which at the time of payment shall be
legal tender for the payment of public and private debts, free and clear and
without reduction by reason of any present or future income, stamp or other
taxes, levies, imposts, deductions, charges, compulsory loans or withholdings
whatsoever, including interest thereon or penalties with respect thereto, if any
imposed, assessed, levied or collected by any political subdivision or taxing
authority thereof or therein, on or in respect of this Note or the obligations
it evidences. All payments shall be made during normal business hours at the
Commission's designated lockbox location as set forth from time to time in the
<PAGE>

Commission's then-applicable orders and regulations and/or public notices.

     This Note is secured by, and entitled to the benefits of, a Security
Agreement (the "Security Agreement") of even date between Maker and Payee. All
the terms, covenants, conditions and agreements contained in the Security
Agreement are hereby incorporated herein and made part of this Note to the same
extent and effect as if fully set forth herein. It is expressly understood by
Maker that all of the terms of the Security Agreement apply to this Note and
that reference in the Security Agreement to "this Agreement" includes both the
Security Agreement and this Note.

     IT IS HEREBY EXPRESSLY AGREED THAT TIME IS OF THE ESSENCE FOR THE
PERFORMANCE OF ALL TERMS AND CONDITIONS UNDER THIS NOTE AND THE SECURITY
AGREEMENT.

     A default under this Note ("Event of Default") shall occur upon any or all
of the following:

     a. non-payment by Maker of any Principal or Interest on the due date as
specified hereinabove if the Maker remains delinquent for more than 90 days and

           (1)  Maker has not submitted a request, in writing, for a grace
                period or extension of payments, if any such grace period or
                extension of payments is provided for in the then-applicable
                orders and regulations of the Commission; or

           (2)  Maker has submitted a request, in writing, for a grace period or
                extension of payments, if any such grace period or extension of
                payments is provided for in the then-applicable orders and
                regulations of the Commission, and following the expiration of
                the grant of such grace period or extension or upon denial of
                such a request for a grace period or extension, Maker has not
                resumed payments of Interest and Principal in accordance with
                the terms of this Note;

or;

     b. failure by Maker to comply with any other condition for holding the
above referenced license (as defined in the Security Agreement) as set forth in
the license or in the Communications Act of 1934, as amended, or the then-
applicable orders and regulations of the Commission; or

     c. violation by Maker of any other covenant or term of this Note or the
Security Agreement.

Upon any Event of Default under this Note, Payee may assess a late fee and/or
administrative charge, plus the costs of collection, litigation, attorneys'
fees, and default payment as specified in the then-applicable orders and
regulations of the Commission, as amended, and Maker
<PAGE>

acknowledges that it is liable and herein expressly promises to pay on demand
such additional costs, expenses, late charges, administrative charges, attorneys
fees, and default payment. Upon a default under this Note, the unpaid Principal
Amount, plus all unpaid interest accrued thereon, together with any late fee
and/or administrative charge, plus the costs of collection, litigation,
attorneys' fees, and default payment as specified in the then-applicable orders
and regulations of the Commission, as amended, shall become immediately due and
payable. The Maker hereby acknowledges that the Commission has issued Maker the
above referenced license pursuant to the Communications Act of 1934, as amended,
that is conditioned upon full and timely payment of financial obligations under
the Commission's installment payment plan, as set forth in the then-applicable
orders and regulations of the Commission, as amended, and that the sanctions and
enforcement authority of the Commission shall remain applicable in the event of
a failure to comply with the terms and conditions of the license, regardless of
the enforceability of this Note or the Security Agreement.

     No delay or omission on the part of Payee in exercising any right under
this Note, the Security Agreement, or any other instrument securing this Note,
shall operate as a waiver of such right or of any other right of Payee, nor
shall any waiver by Payee of any such right or rights on any one occasion be
deemed a bar to or waiver of the same right or rights on any future occasion.

     The Maker is liable for all costs of collection or enforcement of the
Payee's rights under this Note or under the Security Agreement or under any
other instrument now or hereafter executed by Maker in favor of Payee which in
any manner evidences or constitutes additional security for this Note, including
reasonable attorneys' fees, whether suit is brought or not, and all such costs
shall be paid by the Maker on demand, and whether or not such collection or
enforcement occurs in any bankruptcy, reorganization, receivership or other
proceedings involving creditors' rights or involving a claim under this Note or
any of the other loan documents.

     Maker, all endorsers and guarantors hereof and any other party who may
become liable for all or any part of the obligation evidenced hereby, waive
presentment for payment, notice or dishonor, protest and notice of protest,
notice of nonpayment and any and all lack of diligence or delays in collection
or enforcement of this Note.

     Maker may prepay all or any part of the Principal Amount without premium or
penalty upon ten (10) days' prior written notice to Payee, given in the manner
provided in the Security Agreement.

     Partial prepayments shall not postpone or reduce regular payments to be
made hereunder. All such prepayments shall be applicable first to the payment of
late charges, if any, costs and expenses, and administrative penalties due
hereunder, then to accrued and unpaid interest, then to that portion of the
unpaid Principal Amount due on the Maturity Date and then, if applicable, to any
unpaid installments of principal in the inverse order of installment maturities.
The Payee may require that any partial prepayments be made on the dates
installments of principal and interest are due hereunder.
<PAGE>

          Anything to the contrary notwithstanding, Payee shall not charge, take
or receive, and Maker shall not be obligated to pay to Payee, any amounts
constituting interest on the Principal Amount in excess of the maximum rate
permitted by applicable law. If by reason of the acceleration of the unpaid
Principal Amount or otherwise, interest in excess of the highest legal contract
rate permitted by applicable law shall at any time be paid, any such excess
shall constitute and be treated as a payment of outstanding principal hereunder
and shall operate to reduce such outstanding Principal Amount.

          ANY LEGAL ACTION OR PROCEEDING RELATING TO THIS NOTE, THE SECURITY
AGREEMENT, OR OTHER DOCUMENTS EVIDENCING OR SECURING THE DEBT TRANSACTION
EVIDENCED HEREBY MAY ONLY BE BROUGHT IN THE UNITED STATES DISTRICT COURT FOR THE
DISTRICT OF COLUMBIA, AND, BY EXECUTION AND DELIVERY OF THIS NOTE AND SECURITY
AGREEMENT, THE MAKER HEREBY ACCEPTS FOR ITSELF AND IN RESPECT OF ITS PROPERTY
GENERALLY AND UNCONDITIONALLY, THE JURISDICTION OF THE AFORESAID COURT. THE
PARTIES HERETO HEREBY IRREVOCABLY WAIVE ANY OBJECTION, INCLUDING, WITHOUT
LIMITATION, ANY OBJECTION TO THE LAYING OF VENUE OR BASED ON THE GROUNDS OF
FORUM NON CONVENIENS, WHICH ANY OF THEM MAY NOW OR HEREAFTER HAVE TO THE
BRINGING OF ANY SUCH ACTION OR PROCEEDING IN THE DISTRICT OF COLUMBIA.

          THE MAKER IRREVOCABLY CONSENTS TO THE SERVICE OF PROCESS OF THE
AFOREMENTIONED COURT IN ANY SUCH ACTION OR PROCEEDING BY THE MAILING OF A COPY
THEREOF BY CERTIFIED MAIL, RETURN RECEIPT REQUESTED, POSTAGE PREPAID, TO THE
MAKER AT ITS ADDRESS PROVIDED HEREIN. SUCH SERVICE SHALL BE DEEMED TO HAVE
OCCURRED ON THE THIRD DAY AFTER SUCH MAILING. NOTHING CONTAINED HEREIN SHALL
AFFECT THE RIGHT OF PAYEE TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY LAW
OR COMMENCE LEGAL PROCEEDINGS OR OTHERWISE PROCEED AGAINST THE MAKER IN ANY
OTHER JURISDICTION.

          EACH OF THE PARTIES HERETO HEREBY KNOWINGLY, WILLINGLY, VOLUNTARILY,
UNCONDITIONALLY, IRREVOCABLY AND INTENTIONALLY FOREVER WAIVES ANY RIGHT IT MAY
HAVE TO TRIAL BY JURY IN RESPECT OF ANY LITIGATION BASED ON, OR ARISING OUT OF,
UNDER OR IN CONNECTION WITH THIS NOTE, THE SECURITY AGREEMENT, OR OTHER
DOCUMENTS EVIDENCING OR SECURING THE DEBT TRANSACTION EVIDENCED HEREBY, ANY
COURSE OF CONDUCT, COURSE OF DEALING, STATEMENTS (VERBAL OR WRITTEN) OR ACTION
OF ANY PERSON OR ANY EXERCISE BY ANY PARTY OF THEIR RESPECTIVE RIGHTS UNDER THIS
TRANSACTION, DOCUMENT OR ANY RELATED DOCUMENT OR IN ANY WAY RELATING TO THE
COLLATERAL (INCLUDING, WITHOUT LIMITATION, ANY ACTION TO RESCIND OR CANCEL THIS
TRANSACTION OR ANY CLAIMS OR DEFENSES ASSERTING THAT THIS TRANSACTION, IN WHOLE
OR IN PART, WAS FRAUDULENTLY INDUCED OR IS OTHERWISE VOID OR VOIDABLE). MAKER
REPRESENTS THAT NO ORAL OR
<PAGE>

WRITTEN STATEMENTS HAVE BEEN MADE BY ANY PARTY TO INCLUDE THIS SUBMISSION OR
JURISDICTION AND WAIVER OF TRAIL BY JURY OR IN ANY WAY TO MODIFY OR NULLIFY ITS
STATED EFFECT. MAKER FURTHER REPRESENTS THAT IT HAS BEEN REPRESENTED BY
INDEPENDENT COUNSEL, SELECTED BY ITS OWN FREE WILL, IN SIGNING THIS NOTE AND IN
THE MAKING OF THIS WAIVER AND THAT IT HAS HAD THE OPPORTUNITY TO DISCUSS THIS
WAIVER WITH SUCH COUNSEL. THIS PROVISION IS A MATERIAL INDUCEMENT FOR PAYEE TO
ENTER INTO THIS TRANSACTION AND THE VARIOUS DOCUMENTS RELATED THERETO.

          Maker acknowledges that this Note and Security Agreement (any
attachments affixed thereto by the Commission with the permission and knowledge
of the Maker/Debtor), along with the then-current applicable Commission orders
and regulations and the Communications Act of 1934, as amended, set forth the
entire agreement, written and oral, of the parties, and all inconsistent prior
statements, understandings, notices, representations and agreements between the
parties, oral or written, are superseded by and merged in this Note, the
Security Agreement or other documents evidencing or securing the debt
transaction evidenced hereby. Except as otherwise expressly provided herein, all
of Payee's representations, warranties, covenants and agreements in this Note
and Security Agreement shall merge in the documents and agreements executed by
the Maker and shall not survive said execution.

          If any provision or part of this Note and/or the Security Agreement
shall for any reason be held or deemed to be invalid, illegal, or unenforceable
in any respect, such invalidity, illegality or unenforceability shall not affect
any other provision of this Note and this Note shall be construed as if such
invalid, illegal or unenforceable provision had never been contained herein and
the remaining provisions of this Note shall remain in full force and effect. The
enforceability of the Note and/or the Security Agreement do not alter the rights
and obligations of the Maker and Payee under the Communications Act of 1934, as
amended, or under the then-applicable orders and regulations of the Commission,
as amended.

          Any notice demand or request hereunder shall be given in the manner
set forth in the Security Agreement.

          This Note shall be governed by and construed in accordance with the
Communications Act of 1934, as amended, the then-applicable orders and
regulations of the Commission, and federal law. Nothing in this Note shall be
deemed to modify any then-applicable orders and regulations of the Commission,
and nothing in this Note shall be deemed to release the Maker from compliance
therewith. This Note may not be changed, modified, waived, terminated or
discharged orally, but only by an agreement in writing executed by the party
against whom enforcement of any such change, modification, waiver, termination,
or discharge is sought.

          Maker represents and warrants that any statements made by or on behalf
of Maker in connection with this Note: (i) are true and accurate in all material
respects; and (ii) do not omit any material facts or information that would make
such statement misleading in the context of Payee's evaluation of the note, and
acknowledges and agrees that Payee is entitled to and his relied on such
statements in agreeing to the Note.
<PAGE>

          Payee shall have the right at any time to assign, endorse, pledge,
convey or otherwise transfer this Note and all of the other loan documents to
any party. From and after the date of such assignment, endorsement, pledge,
conveyance or other transfer, such transferee shall be entitled to exercise any
and all rights and remedies of Payee hereunder. Maker shall not assign, convey
or otherwise transfer its rights and obligations hereunder without the prior
written consent of the Commission.


Date:  11/21/96                                 WIRELESS 2000, INC.
      --------------
                                                         [NAME OF MAKER]

                                                By:   /s/ Joan S. Ducote
                                                     --------------------------
                                                Its: President
                                                     --------------------------
<PAGE>

<TABLE>
<CAPTION>
     License Number:   PBB009C
                                                   INSTALLMENT PLAN C AMORTIZATION SCHEDULE
                      for Federal Communications Commission Broadband Personal Communications Service, C-Block Licenses
                                               (Interest-only Payments for the First Six Years)
                        Orig Balance               Orig Rate             Term (yrs)              1st PMT            Future Value
                    --------------------- -------------------------- ------------------ ------------------------ -------------------
                        $4,707,517.50                7.00%                  10                    Dec-96                 $0
- ------------------------------------------------------------------------------------------------------------------------------------
Pmt #  Date      Yr Rate  P&I Payment  Principal    Interest     Extra Prin  New Balance (Prin Only) Cum. Interest  Yearlm Total Int
- ------------------------------------------------------------------------------------------------------------------------------------
<S>    <C>       <C>      <C>          <C>          <C>          <C>         <C>                     <C>            <C>
 1     Dec-96    7.00%    $94,795.22   $0.00         $94,795.22   $0.00       $4,707,517.50           $94,795.22      $94,795.22
 2     Mar-97    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $177,176.77     $82,381.56
 3     Jun-97    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $259,558.33     $164,763.11
 4     Sep-97    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $341,939.88     $247,144.67
 5     Dec-97    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $424,321.44     $329,526.23
 6     Mar-98    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $506,703.00     $82,381.56
 7     Jun-98    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,511.50           $589,084.55     $164,763.11
 8     Sep-98    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $671,466.11     $247,144.67
 9     Dec-98    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $753,847.67     $329,526.23
 10    Mar-99    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $836,229.22     $82,381.56
 11    Jun-99    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $918,610.78     $164,763.11
 12    Sep-99    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,000,992.33   $247,144.67
 13    Dec-99    7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,083,373.89   $329,526.23
 14    Mar-2000  7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,165,755.45   $82,381.56
 15    Jun-2000  7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,248,137.00   $164,763.11
 16    Sep-2000  7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,330,518.56   $247,144.67
 17    Dec-2000  7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,412,900.12   $329,526.23
 18    Mar-2001  7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,495,281.67   $82,381.56
 19    Jun-2001  7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,577,663.23   $164,763.11
 20    Sep-2001  7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,660,044.78   $247,144.67
 21    Dec-2001  7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,742,426.34   $329,526.23
 22    Mar-2002  7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,824.807.90   $82,381.56
 23    Jun-2002  7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,907,189.45   $164,763.11
 24    Sep-2002  7.00%    $82,381.56   $0.00         $82,381.56   $0.00       $4,707,517.50           $1,989,571.01   $247,144.67
 25    Dec-2002  7.00%    $339,880.77  $257,499.21   $82,381.56   $0.00       $4,450,018.29           $2,071,952.57   $329,526.23
 26    Mar-2003  7.00%    $339,880.77  $262,005.45   $77,875.32   $0.00       $4,188,012.84           $2,149,827.89   $77,875.32
 27    Jun-2003  7.00%    $339,880.77  $266,590.55   $73,290.22   $0.00       $3,921,422.29           $2,223,118.11   $151,165.54
 28    Sep-2003  7.00%    $339,880.77  $271,255.88   $68,624.89   $0.00       $3,650,166.41           $2,291,743.00   $219,790.43
 29    Dec-2003  7.00%    $339,880.77  $276,002.86   $63,877.91   $0,00       $3,374,163.55           $2,355,620.91   $283,668.34
 30    Mar-2004  7.00%    $339,880.77  $280,832.91   $59,047.86   $0.00       $3,093,330.64           $2,414,668.77   $59,047.86
 31    Jun-2004  7.00%    $339,880.77  $285,747.48   $54,133.29   $0.00       $2,807,583.16           $2,468,802.06   $113,181.15
 32    Sep-2004  7.00%    $339,880.77  $290,748.06   $49,132.71   $0.00       $2,516,835.10           $2,517,934.77   $162,313.86
 33    Dec-2004  7.00%    $339,880.77  $295,836.16   $44,044.61   $0.00       $2,220,998.94           $2,561,979.38   $206,358.47
 34    Mar-2005  7.00%    $339,880.77  $301,013.29   $38,867.48   $0.00       $1,919,985.65           $2,600,846.86   $38,867.48
 35    Jun-2005  7.00%    $339,880.77  $306,281.02   $33,599.75   $0.00       $1,613,704.63           $2,634.446.61   $72,467.23
 36    Sep-2005  7.00%    $339,880.77  $311,640.94   $28,239.83   $0.00       $1,302,063.69           $2,662,686.44   $100,707.06
 37    Dec-2005  7.00%    $339,880.77  $317,094.66   $22,786.11   $0.00       $984,969.03             $2,685,472.55   $22,786.11
 38    Mar-2006  7.00%    $339,880.77  $322,643.81   $17,236.96   $0.00       $662,325.22             $2,702,709.51   $40,023.07
 39    Jun-2006  7.00%    $339,880.77  $328,290.08   $11,590.69   $0.00       $334,035.14             $2,714,300.20   $51,613.76
 40    Sep-2006  7.00%    $339,096.00  $334,035.14   $5,060.86    $0.00       $0.00                   $2,719,361.06   $56,674.62
- ------------------------------------------------------------------------------------------------------------------------------------
     License Grant date., September 17. 1996     First and last payments prorated based an the above license grant date.
</TABLE>
<PAGE>

                              SECURITY AGREEMENT
  (Broadband Personal Communications Service, C Block): Auction Event No. 5)

License No.  PBB009C
             -------

          This SECURITY AGREEMENT DATED September 17, 1996, ("Agreement")
between Wireless 2000, Inc., a CORPORATION ("Debtor") and the FEDERAL
COMMUNICATIONS COMMISSION, an independent regulatory agency of the United States
("Commission" or "Secured Party")

                                  WITNESSETH

          WHEREAS, Debtor has submitted the highest accepted bid for license
number PBB009C in the Broadband Personal Communications Service C Block auction
(hereinafter the "License") conducted by the Commission to assign such licenses;

          WHEREAS, the Commission has duly determined to grant the License to
Debtor, subject to the terms and conditions set forth in the orders and
regulations of the Commission applicable to such licenses, and the
Communications Act of 1934, as amended;

          WHEREAS, Debtor wishes to pay its auction price for the License by
installments through an Installment Payment Plan as provided by 47 C.F.R. ss.ss.
24.711, 1.2110 (hereinafter the "Installment Payment Plan") and undertakes to
hold the License under the terms and conditions set forth in the Commission's
orders and regulations, as amended, applicable to such licenses, and the
Communications Act of 1934, as amended and the terms and conditions of this
Agreement;

          WHEREAS, the Commission has agreed to permit the Debtor to make
payment of the auction price for the License through an Installment Payment
Plan; and

          WHEREAS, as a condition to such agreement, Debtor has agreed to
execute the Installment Payment Plan Note of even date ("Note") and to enter
into this Agreement and make the pledge and assignment of collateral
contemplated herein.

          NOW, THEREFORE, in consideration of the premises, the mutual
agreements contained herein and for other good and valuable consideration, the
receipt, adequacy, and sufficiency of which is hereby acknowledged, and in order
to induce the Commission to permit Debtor to pay the auction price for the
License through the Installment Payment Plan, Debtor hereby agrees with the
Commission as follows:

          1.   Pledge and Assignment of Collateral of Obligations Under Note.
               -------------------------------------------------------------
Debtor hereby pledges, assigns, hypothecates, delivers, and sets over to the
Commission and grants to the Commission a first lien on and continuing security
interest in all of the Debtor's rights and
<PAGE>

interest in the License and all proceeds, profits and products of any sale of or
other disposition thereof (collectively the "Collateral"), all as collateral
security for the prompt and complete payment when due (whether in accordance
with the schedule of payments, at the stated maturity, by acceleration, or
otherwise) of the unpaid principal and interest due, and such other additional
costs, expenses, late charges, administrative charges, attorneys fees, and
default payments assessable under the terms of the Note (all collectively
"Obligations"). It is expressly understood by Debtor that all of the terms of
the Note apply to this Agreement and that reference herein to "this Agreement"
includes both the Security Agreement herein and the Note. For purposes of
interpreting the terms used in this Agreement shall have the meaning ascribed to
them in the Uniform Commercial Code (Official Text and Comments, American Law
Institute).

         2. Interest of Commission. It is understood and acknowledged by Debtor
            ----------------------
that pursuant to Section 301 of the Communications Act of 1934, as amended, the
Commission is charged with the regulatory mandate to maintain control over all
channels of radio transmission (the "Spectrum"), and to provide licenses for the
use of such radio channels, but not ownership thereof. Debtor understands and
acknowledges that it holds a mere conditional license to use the Spectrum with
no ownership interest in the Collateral (or any underlying right to use the
Spectrum), or any power to assign the License without the prior Approval of the
Commission pursuant to Section 310(d) of the Communications Act of 1934, as
amended. Debtor further understands and acknowledges that it is giving a
security interest to the Commission in the Collateral only to assist the
Commission in protecting its ability to enforce the Commission's regulations
which condition holding the license in compliance with all then-applicable
orders and regulations of the Commission, including, but not limited to, full
and timely payment of all payments under the Installment Payment Plan. To that
end, and not in derogation of any of the Commission's regulatory authority over
the License, Debtor hereby acknowledges that the Commission has a first security
interest in the Collateral, and Debtor shall not dispute such first security
interest, or the Commission's rights as a secured party hereunder, in any legal
or equitable proceeding in which Debtor, or any assignee or trustee of the
estate of Debtor in bankruptcy, is a party.

         3. Compliance with Commission Orders and Regulations. Nothing in this
            -------------------------------------------------
Agreement shall be deemed to modify any then-applicable orders and regulations
of the Commission, and nothing in this Agreement shall be deemed to release
Debtor from compliance therewith.

         4. Representations and Warranties of Debtor. Debtor represents and
            ----------------------------------------
warrants to the Commission as follows:

         (a)  It has full power, authority and legal right to execute, deliver
and perform this Agreement, the Note, and any other documents delivered in
connection with the Note, this Agreement and the transactions contemplated
therein to make the debt transaction evidenced by the Note, and to pledge the
Collateral pursuant to this Agreement.

         (b)  It is a duly organized CORPORATION existing in good standing under
the laws of LOUISIANA and is duly qualified to do business wherever necessary to
carry on its

                                      -2-

<PAGE>

present operations. Its principal place of business and chief executive office
are located at 219 NORTH WASHINGTON STREET, MARKSVILLE, LA 71351.

         (c)  The representative of Debtor purporting to act on behalf of Debtor
in executing this Agreement, the Note, and any other documents delivered in
connection with the Note, this Agreement and the transactions contemplated
therein, is duly authorized by Debtor to take all such acts and to execute all
such documents.

         (d)  No security agreements have been executed and delivered, and no
financing statements have been filed in any jurisdiction, granting or purporting
to grant a security interest in the Collateral to any secured party except to
the Commission.

         (e)  No consent of any other party and no consent, license, approval or
authorization of, exemption by, or registration or declaration with, any
governmental instrumentality, domestic or foreign other than the Commission, is
required to be obtained in connection with the execution, delivery or
performance of this Agreement, the Note or any other document executed and
delivered in connection with the delivery of the Note or this Agreement.

         (f)  The execution, delivery and performance of this Agreement and the
Note, does not and will not violate any provision of any applicable law or
regulation or any order, judgment, writ, award or decree of any court,
arbitrator, governmental instrumentality, domestic or foreign, or of any
indenture, contract, agreement or other undertaking to which Debtor is a party
or which purports to be binding upon Debtor or upon any of Debtor's assets, and
will not result in the creation or imposition of any lien, charge or encumbrance
on or security interest in any of the assets of Debtor, except as contemplated
by this Agreement.

         (g)  All right and interest of any kind in and to the Collateral is
held by Debtor or the Commission and by no other party, and the Collateral is
free from any lien, security interest, encumbrance or adverse claim of any kind
whatsoever thereon. Debtor will not permit any financing statement to be filed
with respect to the Collateral or any portion thereof or interest therein except
in favor of Secured Party. Debtor will notify Secured Party of, and will defend
the Collateral against, all claims and demands of all persons at any time
claiming the same or any interest therein.

     5.  Covenants of Debtor. Debtor hereby covenants and agrees as follows:
         -------------------

         (a) That it will defend the Commission's right, title and security
interest in and to the Collateral against the claims and demands of all persons
whomsoever.

         (b) That it will execute all financing statements and other instruments
or documents related to the perfection of the Commission's security interest,
including but not limited to any renewal financing statements or instruments as
required to maintain the Commission's security interest, or as otherwise
reasonably requested by the Commission, and to file and pay the cost of filing
any such instruments or documents as required under this paragraph in whichever
public office deemed advisable by the Commission.

                                      -3-

<PAGE>

         (c) That it will not make any indenture, contract, agreement or other
undertaking to which Debtor is a party or which purports to be binding upon
Debtor, or upon any of Debtor's assets, that would result in the creation or
imposition of any lien, charge or encumbrance on or security interest in any of
the assets of Debtor that would be inconsistent with its pledge and assignment
of the Collateral hereunder, except as contemplated by this Agreement. Except
for the liens and encumbrances created hereby, Debtor will keep the Collateral
free and clear of any lien, security interest or encumbrance.

         (d) That it will pay all costs and expenses, including reasonable
attorneys' fees, of the Commission incurred in connection with the enforcement
of this Agreement and any and all liability incurred by the Commission resulting
from any act or omission of Debtor with respect to the Collateral and this
Agreement.

         (e) Debtor will execute, alone or with Secured Party, any document,
will procure any document and do all other acts and pay all connected costs, in
a timely and proper manner, which from the character or use of the Collateral
may be reasonably necessary to protect the Collateral against the rights, claims
or interests of third persons, and will otherwise preserve the Collateral as
security hereunder. The specific undertakings required of Debtor in this
Agreement shall not be construed to exclude the aforementioned general
obligation.

         6.  Power of Attorney. Debtor hereby irrevocably constitutes and
             -----------------
appoints the Commission and any officer or agent thereof, with full power of
substitution, as its true and lawful attorney-in-fact with full irrevocable
power and authority in the place and stead of Debtor and in the name of Debtor
or in its own name, from time to time in the Commission's discretion, for the
purpose of carrying out the terms of this Agreement and, to the extent permitted
by applicable law, to take any and all appropriate actions and to execute any
and all documents and instruments which may be necessary or desirable to
accomplish the purposes of this Agreement. Such appointment is a power coupled
with an interest until all Obligations have been paid in full by Debtor.

         7.  Event of Default. Debtor shall be in default under this Agreement
             ----------------
if an Event of Default (as defined in the Note) has occurred.

         8.  Remedies. If an Event of Default shall occur, the Commission shall
             --------
thereafter have the following rights and remedies (to the extent permitted by
applicable law) in addition to the rights and remedies relating to the Note, all
such remedies being cumulative, not exclusive, and enforceable alternatively,
successively or concurrently at such time or times as Commission deems
expedient:

         (a) the License shall be automatically canceled pursuant to 47 C.F.R.
(S). 1.2110;

         (b) all Obligations; secured hereunder shall become immediately due and
payable without presentment, demand, protest, further notice, or other
requirements of any kind;

         (c) the Commission may demand, sue for, and collect the outstanding
balance of the unpaid Obligations, and make any compromise, or settlement the
Commission deems suitable

                                      -4-

<PAGE>

with respect to any Collateral which may be held by it hereunder;

         (d) Debtor hereby acknowledges the Commission's authority, pursuant to
the Communications Act of 1934, as amended, and the Commission's orders and
regulations then-applicable to such licenses, to conduct another public auction
or assign the License in the event that the Commission rescinds, cancels, or
revokes the License for any default under this Agreement or any other violation
of the terms and conditions of the License. The Undersigned hereby waives all
notices prior to the conduct of said public auction or assignment by the
Commission or its agents. Debtor further acknowledges that in the event that the
Commission rescinds, cancels, or revokes the License for any default under this
Agreement or any other violation of the terms and conditions of the License,
Debtor has no right or interest in any moneys or evidence of indebtedness given
to the Commission by a subsequent licensee of the Spectrum and that all such
moneys or evidence of indebtedness are, and shall remain, the full property of
the federal Treasury, pursuant to Section 309(j) of the Communications Act of
1934, as amended, and then-applicable Commission orders and regulations.

         (e) In addition to other remedies hereunder, Debtor shall remain
liable, and obligated to pay on demand, all costs of collection and reasonable
attorneys' fees and expenses incurred or paid by the Commission in enforcing
this Agreement including, without limitation, all administrative fees and
expenses of the Commission in attempting to collect the Obligations or to
enforce this Agreement, or the prosecution or defense of any action or
proceeding related to the subject matter of this Agreement, and all payments
assessed by the Commission in the event of default as specified in Commission
orders and regulations applicable to such licenses.

         (f) Debtor hereby acknowledges that the Commission has no adequate
remedy at law with respect to a breach of any covenant contained in this
Agreement and, as a consequence, agrees that each and every covenant contained
in this Agreement shall be specifically enforceable against Debtor, and Debtor
hereby waives and agrees not to assert any defense against an action for
specific performance of such covenants.

         (g) Secured Party may exercise any and all of the rights and remedies
conferred upon Secured Party by this Agreement, any other loan documents, or by
applicable law, either concurrently or in such order as Secured Party may
determine.

         (h) Secured Party may make such payments and do such acts as Secured
Party may deem necessary to protect its secured interest in the Collateral.

         (i) the Commission may exercise any remedies of a Secured Party under
the Uniform Commercial Code (Official Text and Comments, American Law
Institute), or any other applicable law.

         (j) Secured Party shall have the right to enforce one or more remedies
hereunder or under the Note, successively or concurrently, and such action shall
not operate to estop or prevent Secured Party from pursuing any further remedy
which it may have.

         9.  Severability. Any provision of this Agreement that is prohibited or
             ------------
unenforceable

                                      -5-

<PAGE>

in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent
of such prohibition or unenforceability without invalidating the remaining
provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction.

         10. No Waiver; Cumulative Remedies. None of the terms or provisions of
             ------------------------------
this Agreement may be waived, altered, modified or amended except by an
instrument in writing, duly executed by the Commission. The Commission shall not
by any act, delay, omission or otherwise be deemed to have waived any of its
rights or remedies under this Agreement, and no waiver shall be valid unless in
writing, signed by the Commission, and then only to the extent therein set
forth. A waiver by the Commission of any right or remedy under this Agreement on
any one occasion shall not be construed as a bar to any right or remedy which
the Commission would otherwise have on any future occasion. No failure to
exercise nor any delay in exercising on the part of the Commission, any right,
power or privilege under this Agreement shall operate as a waiver thereof; nor
shall any single or partial exercise of any right, power or privilege under this
Agreement preclude any other or further exercise thereof or the exercise of any
other right power or privilege. The rights and remedies provided in this
Agreement are cumulative and may be exercised singly or concurrently and are not
exclusive of any rights or remedies provided by law.

         11. Compliance With Other Applicable Orders and Regulations. Debtor
             -------------------------------------------------------
recognizes that its continued retention of the License, and rights to operate as
a Commission licensee thereunder, are conditioned upon compliance with all
Commission orders and regulations applicable to the License and the
Communications Act of 1934, as amended. Debtor further recognizes that full and
timely payment as set forth in the Note does not otherwise relieve it of its
obligations otherwise to comply with the then-applicable orders and regulations
of the Commission, and the Communications Act of 1934, as amended.

         12. Applicable Law. This Agreement shall be governed by and construed
             --------------
in accordance with Communications Act of 1934, as amended, then-applicable
Commission orders and regulations, as amended, and federal law.

         13. Successors, Assigns, Designated Agents. Subject to the provisions
             --------------------------------------
of Paragraph 2 of this Agreement regarding the restriction upon Debtor's ability
to assign the License, this Agreement shall be binding upon Debtor, its
successors and assigns and shall inure to the benefit of the Commission, and its
successors and assigns. The Commission may designate agents other than the
Commission to act on its behalf with respect to any and all rights and remedies
of the Commission under this Agreement or the Note, and such designee shall have
all of the rights, powers and remedies available to the Commission within the
scope of its designation. Nothing herein, however, shall be construed as
granting Debtor any right to sell or assign the License.

         14. Singular and Plural. Wherever used, the singular number shall
             -------------------
include the plural, the plural shall include the singular, and the use of any
gender shall be applicable to all genders.

         15. Financing Statements. To the extent permitted by applicable law,
             --------------------
Debtor authorizes the Commission to sign and file financing statements at any
time with respect to any

                                      -6-

<PAGE>

of the Collateral without the signature of Debtor. Debtor will, however, at the
same time and from time to time, execute such financing statements, agreements
and other instruments and perform such acts as Commission may request in order
to establish and maintain a validly perfected first priority security interest
in the Collateral. All reasonable costs of filing and recording will be paid by
Debtor.

     16.  Indemnification. Debtor hereby agrees to defend, indemnify and
          ---------------
hold harmless Secured Party and its employees, officers and agents, from and
against any and all liabilities, claims and obligations which may be incurred,
asserted or imposed upon them or any of them as a result of or in connection
with any use, operation, lease or consumption of any of the Collateral or as a
result of Secured Party's seeking to obtain performance of any of the
obligations due with respect to the Collateral.

     17.  Notices. All notices, requests and demands hereunder shall be in
          -------
writing and shall be deemed to have been duly given, made or served on the
earliest of (i) three (3) business days after the date mailed if sent by first-
class U.S. mail, postage prepaid, (ii) actual delivery thereof if delivered by
hand to the party to be notified, (iii) receipt thereof if sent by express mail
or other overnight courier service, or (iv) transmission to the telecopier
number listed below for the party to be notified if sent within normal business
hours or, otherwise, on the next business day thereafter. In each case such
notification with respect to the Debtor and the Commission shall be addressed as
set forth below or as may be hereafter designed by the respective parties
hereto.

As to Debtor:              WIRELESS 2000, INC.
- ------------
                           P. 0. BOX 337
                           219 NORTH WASHINGTON STREET
                           MARKSVILLE, LA 71351
                           ATTN: JOAN S. DUCOTE, PRESIDENT

As to the
- ---------
Commission:                U.S. DEPARTMENT OF THE TREASURY
- ----------
                           P. 0. BOX 44093
                           WASHINGTON, D. C. 20026-4093
                           ATTN: FCC-FMS/DEBT MANAGEMENT SERVICE

                                      -7-
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed and delivered as of the day and year first above written.

         DEBTOR:
         ------

                                    WIRELESS 2000, INC.

         Date: 11/21/96             By: /s/ Joan S. Ducote
                                        -------------------
                                    Its:    PRESIDENT

                       FEDERAL COMMUNICATIONS COMMISSION
                       ---------------------------------

         Date: 12/18/96             By:  /s/ [SIGNATURE ILLEGIBLE]
                                         ---------------------------
                                    Its: Associate Managing Director
                                         for Operations (or designee)

                                      -8-
<PAGE>

License No.: PBB009C
Modified License No.: PBB009C1

                             FIRST MODIFICATION OF
                             --------------------
                         INSTALLMENT PAYMENT PLAN NOTE
                         -----------------------------
                           FOR BROADBAND PCS C BLOCK
                           -------------------------

     THIS FIRST MODIFICATION OF INSTALLMENT PAYMENT PLAN NOTE ("First
Modification") is executed on the 21st day of July, 1998, and is intended to be
effective for all purposes as of the 31st day of July, 1998 ("Effective Date"),
by and between: (i) WIRELESS 2000, INC., A Louisiana Corporation ("Maker"); and
(ii) FEDERAL COMMUNICATIONS COMMISSION, an independent regulatory agency of the
United States ("Payee" or "Commission").

                             W I T N E S S E T H:
                             --------------------

RECITALS:
- --------

     R-1. Reference is made to that certain Installment Payment Plan Note made
by Maker, payable to the order of the Commission, in the original principal
amount of $4,707,517.50 ("Original Note"). The Original Note is secured by,
amongst other things (i) that certain Security Agreement by and between the
Maker and the Commission ("Security Agreement"); and (ii) those certain
Financing Statements related thereto (collectively, "Financing Statements"). The
Original Note, Security Agreement, Financing Statements and all other documents
evidencing, governing or securing the Original Note, together with any and all
amendments, modifications or supplements thereto, are hereinafter collectively
referred to as the "Loan Documents". All of the terms, conditions and provisions
of the Loan Documents are hereby incorporated herein and made a part hereof in
their entireties by this reference.

     R-2. The Security Agreement and Financing Statements created a first lien
security interest in the "License" and the "Collateral" (as those terms are
defined in the Security Agreement).

     R-3. Pursuant to that certain Public Notice, DA 97-649 (rel. March 31,
1997) ("Suspension Order"), the Commission suspended the deadline for payment of
installment payments required to be made under the Original Note. Pursuant to
that certain Second Report and Order and Further Notice of Proposed Rule Making
adopted September 25, 1997 and released October 16, 1997 ("Second Report and
Order"), the Commission rescinded the Suspension Order and ordered the
reinstatement of payments under the Original Note effective March 31, 1998 and
agreed to a schedule of payment of all accrued and unpaid interest due under the
Original Note. The Second Report and Order was subsequently modified by that
certain Order on Reconsideration of the Second Report and Order adopted March
23, 1998 and released March 24, 1998 ("Order on Reconsideration"). Pursuant to
the Order on Reconsideration and the Public Notice, DA-98-741 (rel. April 17,
1998), the date for the resumption of payments under the Original Note was
changed to July 31, 1998 as well as certain other modifications to the

                                      -9-
<PAGE>

terms contained in the Second Report and Order.

     R-4. Pursuant to the terms of the Second Report and Order, as modified by
the Order of Reconsideration, the Maker elected to disaggregate a portion of the
spectrum covered by the License and in return, receive a partial reduction of
the principal balance of the Original Note (the "Disaggregation Election"). In
order to reflect the Disaggregation Election, the modification to the payment
terms with respect to "Suspension Interest" and "Deferred Interest" (as those
terms are defined below), and certain other modifications to the terms of the
Original Note and Original Security Agreement, (i) Maker and the Commission are
modifying the terms of the Original Note by this First Modification (the
Original Note, as modified by this First Modification, is hereinafter referred
to as the "Note"), (ii) Maker and the Commission are modifying the terms of the
Original Security Agreement by this First Modification (the Original Security
Agreement, as modified by this First Modification, is hereinafter referred to as
the "Security Agreement"), and (iii) Maker is executing and delivering new
Financing Statements for the purpose of creating a lien on the "Modified
License" (as hereinafter defined) in favor of the Commission (the "New Financing
Statements") [the Original Financing Statements, as supplemented by the New
Financing Statements, are hereinafter referred to as the "Financing
Statements"]. The Original Loan Documents, as amended, modified and/or
supplemented by this First Modification and the New Financing Statements,
together with any and all amendments, modifications or supplements thereto, are
hereinafter collectively referred to as the "Loan Documents". All of the terms,
conditions and provisions of the Loan Documents are hereby incorporated herein
and made a part hereof in their entireties by this reference.

     R-5. It is the intention of the Maker and the Payee that except as
specifically modified by this First Modification, the Original Note and Original
Security Agreement shall continue in full force and effect.

     NOW, THEREFORE, in consideration of the covenants and agreements herein
contained, the sum of Ten dollars ($10.00) and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
undersigned parties hereby covenant and agree and amend the Original Note as
follows:

     1.  The foregoing Recitals, including all terms defined therein, are hereby
incorporated in this First Modifications in the same extent as if they had been
herein stated in full. The documents referred to in the Original Note shall
include the documents referred to therein, as well as any and all modifications,
amendments, additions and/or supplements thereto and/or replacements thereof.

     2.  This First Modification shall amplify and modify where specifically
provided herein but shall not replace the Original Note. Except as specifically
modified herein, all the terms, conditions and obligations of the Original Note
shall remain in full force and effect, and all of the rights and remedies
provided for therein shall be preserved to the Commission. If there is any
conflict between the provisions of the First Modification and the provisions of
the Original Note, the provisions of this First Modification shall govern and
prevail. THE COMMISSION AND MAKER COVENANT AND AGREE THAT THIS FIRST
MODIFICATION ONLY

                                     -10-
<PAGE>

MODIFIES THE TERMS OF THE ORIGINAL NOTE AND IS NOT A NOTATION OF THE ORIGINAL
NOTE.

     3.  The Original Security Agreement, as modified by this First
Modification, and the Original Financing Statements, as supplemented by the New
Financing Statements, will continue to encumber the License and Collateral (as
each of those terms are modified in this First Modification) with a first lien
security interest. The Original Note, as modified by this First Modification,
and all extensions, renewals, modifications and amendments and consolidations
thereof or substitutions therefore shall continue to be secured by the Security
Agreement and all other documents, instruments, certifications, security
agreements and financing statements executed and delivered in connection
therewith by the Maker or by its successors. The Original Note and this First
Modification shall be entitled to the benefits of, and to the security required
to be provided by, the aforesaid documents, some of which contain provisions for
the acceleration of the maturity of the Note upon the happening of certain
stated events.

     4.  Pursuant to the Disaggregation Election, Maker and the
Commission acknowledge and agree that the original principal balance of the
Original Note is hereby reduced, effective for all purposes as of the effective
date of the Original Note, to $2,834,452.50. Such reduced original principal
balance is hereinafter referred to as the "Principal Amount" and the defined
term Principal Amount contained in the Original Note is hereby modified to
conform to the new original principal balance of the Original Note.

     5.  The Amortization Schedule attached to the Original Note as Schedule A
is hereby deleted in its entirety. All references in the Original Note to
Schedule A are hereby deleted. All payments under the Note shall continue to be
made in accordance with the terms of the Original Note, as modified by the
provisions of this First Modification.

     6.  Maker and the Commission covenant and agree that pursuant to the terms
of the Suspension Order and the Second Report and Order, interest payments under
the Original Note were suspended for the period effective as of March 31, 1997
through and including March 31, 1998. The entire amount of unpaid interest that
accrued during the period beginning with the grant date of the License through
and including March 31, 1998 is hereinafter referred to as the "Suspension
Interest". All Suspension Interest is to be repaid in eight (8) equal payments
with the first such payment being due on the Effective Date. In addition,
pursuant to the terms of the Order on Reconciliation, (i) all interest accrued
on the Original Note from April 1, 1998 through the Effective Date ("Deferred
Interest") is due and payable in full on the Effective Date, (ii) all payments
under the Note were reinstated as of the Effective Date, and (iii) the schedule
for making quarterly interest and/or principal payments under the Note was
changed to require quarterly payments on October 31, January 31, April 30 and
July 31 of each year without any modification to the amounts for each payment as
provided in the Original Note, with the first such payment being due and payable
on October 31, 1998. Based upon the foregoing, the Original Note is hereby
amended to provide that the payments of interest and principal shall be as
follows:

     (a) On the Effective Date, Maker shall make a payment to Payee in the
amount of all

                                     -11-
<PAGE>

Deferred Interest ("Deferred Interest Payment").

          (b)  On the Effective Date, and continuing on each following October
31, January 31, April 30 and July 31 thereafter until all Suspension Interest
has been paid in full, Maker shall make a payment equal to one-eighth (1/8th) of
the Suspension Interest outstanding as of March 31, 1998 ("Suspension Interest
Payment").

          (c)  Commencing on October 31, 1998, and continuing on each January
31, April 30, July 31 and October 31 thereafter (such quarterly dates are
hereinafter referred to as the "New Quarterly Payment Dates" or individually a
"New Quarterly Payment Date"), Maker shall make equal, consecutive quarterly
payments of interest only at the "Annual Rate" (as that term is defined in the
Original Note) based upon the reduce Principal Amount as provided herein. On
each New Quarterly Payment Date, all accrued and outstanding interest for the
applicable calendar quarter shall be due and payable in full. The last quarterly
interest only payment shall be due on the New Quarterly Payment Date occurring
immediately prior to the date that the first quarterly payment of principal and
interest is due.

          (d)  Commencing on the "First Principal Repayment Date" (as
hereinafter defined), and continuing on each New Quarterly Payment Date
thereafter until the "Maturity Date" (as that term is defined in the Original
Note), Maker shall pay principal and interest in equal quarterly installments
equal to all accrued interest during the applicable calendar quarter plus a
principal payment calculated using an amortization schedule which would result
in the Note being repaid in full over a four (4) year term comprised of sixteen
(16) quarterly payment periods. The "First Principal Repayment Date" shall be
(i) the date provided in the Original Note for the first payment of principal
and interest if such date is a New Quarterly Payment Date, or (ii) the first New
Quarterly Payment Date following the date currently provided in the Original
Note for the first payment of principal and interest if the first quarterly
payment of principal and interest required under the Original Note is due on a
day other than one of the New Quarterly Payment Dates.

          (e)  The Maker and the Commission acknowledge and agree that no
modification is being made to the "Maturity Date" (as that term is defined in
the Original Note) and that the entire "Principal Amount" (as that term is
defined in the Original Note), together with accrued and unpaid interest
thereon, and all other remaining obligations of Maker under the Note, if not
sooner paid, shall be due and payable on the Maturity Date.

          (7)  The sixth (6th) paragraph of the Original Note reading "All
interest shall be computed on the basis of a 360-day year for actual days
elapsed." is hereby deleted in its entirety and replaced with the following:

               Interest on the Principal Amount of this Note shall
               be computed at the Annual Rate on the basis of a
               three hundred sixty (360)-day year composed of
               twelve (12) months of thirty (30) days each, except
               that interest due and payable for a period of less
               than a full quarterly payment period shall be
               calculated by dividing the full quarterly payment
               by the actual number of calendar days in the

                                     -12-
<PAGE>

               applicable quarterly payment period to create a
               daily rate that is multiplied by the actual number
               of days elapsed since the last day of the previous
               quarterly payment period.

          (8)  If the Suspension Interest Payment and the Deferred Interest
Payment due on the Effective Date are received by the Commission on or before
October 29, 1998, together with any applicable late fee, Maker and the
Commission agree that the paragraphs of the Original Note defining when an
"Event of Default" occurs will be modified by deleting in their entirety the
provisions beginning with the phrase "a non-payment by Maker of any Principal or
Interest on the due date. . ." and continuing through ". . ., Maker has not
resumed payments of Interest and Principal in accordance with the terms of this
Note; or "and replace with the following:

               a.   Any non-payment by Maker of any Principal and/or Interest
               on the due date specified hereinabove, and the failure to make
               such payment, together with all applicable "Late Fees" (as
               hereinafter defined) within one hundred eighty (180) days after
               such Principal and/or Interest payment due date; or

          (9)  The Original Note is hereby amended to provide that in addition
to the Events of Default listed therein, as modified by this First Modification,
it shall be an Event of Default under the Note if either the Suspension Interest
Payment due on the Effective Date or the Deferred Interest Payment due on the
Effective Date is not received by the Commission on or before October 29, 1998.
No additional grace or cure period shall be applicable to such payment. All
other payments of Suspension Interest shall be subject to the same terms and
conditions as the remaining Principal and/or Interest payments under the Note.

          (10) The paragraph of the Original Note which imposes a late fee upon
the occurrence of any Event of Default is hereby modified by deleting in its
entirety the sentence reading "Upon any Event of Default under this Note, Payee
may assess a late fee and/or administrative charge, plus the costs of
collection, litigation, attorneys' fees, and default payment as specified in the
then-applicable orders and regulations of the Commission as amended, and Maker
acknowledges that it is liable and herein expressly promises to pay on demand
such additional costs, expenses, late charges, administrative charges, attorneys
fees, and default payment." and substituting in its place the following:

                    Should any payment of Principal and/or
               Interest required under this Note not be paid in
               full on the due date as specified hereinabove,
               Maker acknowledges that the Payee will incur extra
               expenses for the handling of the delinquent payment
               and servicing the indebtedness evidenced hereby,
               and that the exact amount of theses extra expenses
               is extremely difficult and impractical to
               ascertain. Therefore, Maker shall, in such event,
               without further notice, and without prejudice to
               the right of the Payee to collect any other amounts
               provided to be paid hereunder or under the Security
               Agreement, or to declare an Event of Default, pay
               to the

                                     -13-
<PAGE>

               Commission the "Late Fee" (as hereinafter defined)
               to compensate Payee for expenses incurred in
               handling delinquent payments and the Maker confirms
               and agrees that the Late Fee is a fair
               approximation of the expenses so incurred by the
               Payee. The "Late Fee" is defined as the total, if
               any, of the "Non-Delinquency Late Fee" and the
               "Grace Period Late Fee" (as hereinafter defined).
               The "Non-Delinquency Late Fee" shall be an amount
               equal to five percent (5.0%) of any Principal
               and/or Interest payment required to be made
               hereunder and shall be automatically assessed if
               such payment is not made on the original date that
               such Principal and/or Interest Payment is due
               (without the benefit of any notice of grace
               period). If such Principal and/or Interest payment,
               together with the Non-Delinquency Late Fee, is not
               made on or before the ninetieth (90th)-day after
               the original date that such Principal and/or
               Interest payment was due, such payment shall
               automatically be subject to a second late fee (the
               "Grace Period Late Fee") equal to ten percent
               (10.0%) of the amount of such past due Principal
               and/or Interest Payment (without the benefit of any
               notice or grace period) in addition to the Non-
               Delinquency Late Fee.

                    In addition to the foregoing, there shall also
               automatically be imposed on Maker, and Maker shall
               pay to the Commission without further notice, and
               without prejudice to the right of the Payee to
               collect any other amounts provided to be paid
               hereunder or under the Security Agreement, or to
               declare an Event of Default, the "Resumption Date
               Late Fee" (as hereinafter defined ) to compensate
               Payee for expense incurred in handling delinquent
               payment of the Suspension Interest Payment due on
               the Effective Date and/or the Deferred Interest
               Payment. The Maker confirms and agrees that the
               Resumption Date Late Fee is a fair approximation of
               the expenses so incurred by the Payee. The
               "Resumption Date Late Fee" shall be an amount equal
               to (i) five percent (5.0%) of the Suspension
               Interest Payment due on the Effective Date if such
               payment is not received by the Payee on the
               Effective Date (without the benefit of any notice
               or grace period), and (ii) five percent (5.0%) of
               the Deferred Interest Payment due on the Effective
               Date if such payment is not received by the Payee
               on the Effective Date (without the benefit of any
               notice or grace period).

Maker and Payee agree that all references in the Original Note to a late fee
shall be deemed to be a reference to the Late Fee and/or the Resumption Date
Late Fee, as applicable.

         (11)  Pursuant to the Disaggregation Election, the Maker has returned
to the Commission one-half (1/2) of the spectrum represented by the License and
retained the right to

                                     -14-
<PAGE>

use the remaining one-half (1/2) of the spectrum represented by the License. In
order to evidence the license for the retained spectrum, the Commission has
issued an amended license to the Maker, license number PBB304C1 (herein referred
to as the "Modified License"). Maker and the Commission covenant and agree that
all references in the Original Security Agreement to "License" shall be deemed
to refer to the License, as modified by the Modified License, and all references
in the Original Security Agreement to "Collateral" shall be deemed to refer to
all of the Maker's rights and interest in the License, as modified by the
Modified License, and all proceeds, profits and products of any sale or other
disposition thereof. In order to confirm the continuing lien, operation and
effect of the Security Agreement on the License, as modified by the Modified
License, and the Collateral, Maker does hereby regrant and reconvey unto the
Commission, its successors and assigns, a security interest in the License, as
modified by the Modified License, together with all other rights and property
granted to the Commission pursuant to the terms of the Original Security
Agreement. The foregoing grant by Maker shall be deemed to be a grant and
conveyance of a security interest upon all of the terms and conditions contained
in the Original Security Agreement without the necessity of repeating the
Original Security Agreement herein in its entirety.

          12.  Maker represents and warrants that its principal place of
business and chief executive office is located at Marksville, Louisiana.

          13.  All defined terms contained in the Loan Documents shall have the
same meaning as set forth therein except as may otherwise be expressly set forth
in this First Modification. Maker and the Commission covenant and agree that the
reference in the Security Agreement to the "Note" shall be deemed a reference to
the Original Note, as modified by this First Modification.

          14.  This First Modification constitutes the entire agreement
regarding the amendment and modification of the Original Note between Maker and
the Commission and is intended by Maker and the Commission to be a complete,
exclusive and final integration of all prior and contemporaneous agreements and
negotiations of Maker and the Commission concerning the amendment and
modification of the Original Note. There have been no other agreements,
covenants, representations or warranties between the Maker and the Commission
regarding the amendment and modification of the Original Note other than those
expressly stated or referred to in this First Modification or any document
delivered pursuant hereto.

          15.  This First Modification may be amended or modified only by
written instruments signed by Maker and Commission. If any covenant, condition
or provision of this First Modification is declared by a court of competent
jurisdiction to be invalid and not binding on the Maker and/or the Commission,
such declaration shall in no way affect the validity of the other remaining
covenants, conditions and provisions of this First Modification.

          16.  This First Modification shall bind, inure to the benefit of and
be enforceable by Maker and the Commission, their respective heirs,
beneficiaries, legal representatives, successors and assigns.

          17.  Except as modified by this First Modification, Maker agrees that
the Original

                                     -15-
<PAGE>

Note shall continue in full force and effect without modification, and the
Original Note and all of the other Loan Documents are hereby expressly approved,
ratified, confirmed and reaffirmed by all parties to this First Modification.
Maker hereby acknowledges and agrees that it has no claims, counterclaims, set-
offs, defenses or other causes of action against the Commission and/or under the
Note, Security Agreement or nay of the other Loan Documents and to the extent
that any such set-offs, counterclaims, defenses or other causes of action may
exist, whether known or unknown, they are hereby waived and forever relinquished
by the Maker.

          18.  This First Modification shall be governed and construed in
accordance with the Communications Act of 1934, as amended from time to time,
the then applicable orders and regulations of the Commission and federal law.

          19.  This First Modification may be executed in counterparts, each
of which shall be deemed to be an original and all of which shall collectively
be deemed to constitute a single document.

          IN WITNESS WHEREOF, intending to be legally bound, the undersigned
Maker and the Commission have each executed this First Modification, under seal,
as of the day and year first hereinabove written.

                           [SIGNATURE PAGES FOLLOW]

                                     -16-
<PAGE>

                                SIGNATURE PAGE

                             FIRST MODIFICATION OF

                         INSTALLMENT PAYMENT PLAN NOTE



                                             MAKER:
                                             -----

Witness/Attest:                              WIRELESS 2000, INC.

                                             A, Louisiana Corporation
/s/ Donna Mayeux
- ---------------------

                                             By:  /s/ Joan S. Ducote
                                                 ----------------------------
                                             Name: Joan S. Ducote
                                                   --------------------------
                                             Title: President
                                                    -------------------------

                                             Date: July 21, 1998

                                     -17-
<PAGE>

                                SIGNATURE PAGE

                             FIRST MODIFICATION OF

                         INSTALLMENT PAYMENT PLAN NOTE





                                     COMMISSION:
                                     ----------

Witness/Attest:                      FEDERAL COMMUNICATIONS COMMISSION


- ---------------------------
                                     By: _____________________________
                                     Name: _____________________________
                                     Its: Authorized Signatory for the Wireless
                                          Telecommunications Bureau, Federal
                                          Communications Commission

                                     -18-
<PAGE>

                              STATE OF LOUISIANA
               UNIFORM COMMERCIAL CODE-FINANCING STATEMENT-UCC-1

                                        Filed With:  Ayoyelles
          This FINANCING STATEMENT is presented for filing pursuant to Chapter 9
   of the Louisiana Commercial Laws

<TABLE>
<S>                                                                                                 <C>
- ----------------------------------------------------------------------------------------------------------------------------------
 1A.  DEBTOR (LAST NAME, FIRST, MIDDLE - IF AN INDIVIDUAL)                                          1B.  SS# OR EMPLOYER ID NO
         Wireless 2000, Inc.                                                                                72-1293258
- ----------------------------------------------------------------------------------------------------------------------------------
 1C.  MAILING ADDRESS
         221 N. Monroe, Suite 3 P.O. Box 337, Marksville, LA  71351
- ----------------------------------------------------------------------------------------------------------------------------------
 2A.  ADDITIONAL DEBTOR (IF ANY) (LAST NAME, FIRST, MIDDLE - IF AN INDIVIDUAL)                      2B.  SS# OR EMPLOYER ID NO.

- ----------------------------------------------------------------------------------------------------------------------------------
 2C.  MAILING ADDRESS
- ----------------------------------------------------------------------------------------------------------------------------------
 3A.  ADDITIONAL DEBTOR OR DEBTOR'S TRADE NAMES OR STYLES (IF ANY)                                  3B.  SS# OR EMPLOYER I.D. NO.
- ----------------------------------------------------------------------------------------------------------------------------------
 3C.  MAILING ADDRESS

=================================================== SECURED PARTY INFORMATION ====================================================
 4A.  SECURED PARTY                                                                                 4B.  SS# OR EMPLOYER I.D. NO.
         Federal Communications Commission
- ----------------------------------------------------------------------------------------------------------------------------------
 4C.  MAILING ADDRESS
         Attn:  Jennifer Mock, 2025 M. Street NW Room 5126E Washington, DC  20554
- ----------------------------------------------------------------------------------------------------------------------------------
 5A.  ASSIGNEE OF SECURED PARTY (IF ANY)                                                            5B.  SS# OR EMPLOYER ID NO.
- ----------------------------------------------------------------------------------------------------------------------------------
 5C.  MAILING ADDRESS
- ----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

================================ PROPERTY INFORMATION ==========================
  6A. This FINANCING STATEMENT covers the following types or items of property.
      ALL OF THE DEBTOR'S RIGHT, TITLE AND INTEREST IN AND TO THE "COLLATERAL"
      AND THE "LICENSE" NO. PBB009C1 (AS SUCH TERMS ARE DEFINED IN THE SECURITY
      AGREEMENT AS MODIFIED BY THAT CERTAIN FIRST MODIFICATION OF INSTALLMENT
      PAYMENT PLAN NOTE AND FIRST AMENDMENT OF SECURITY AGREEMENT ENTERED INTO
      BETWEEN THE DEBTOR AND THE SECURED PARTY, INCORPORATED HEREIN BY
      REFERENCE) AND ALL PROCEEDS, PROFITS AND PRODUCTS OF ANY SALE OF OR OTHER
      DISPOSITION THEREOF.

 6B.  [_]Products of collateral are also covered.
- --------------------------------------------------------------------------------
 7A.  Check if applicable and attach legal description of real property
      [_]  Fixture filing under R.S. 10:9-313
      [_]  Minerals of the like (including oil and gas) or accounts subject to
           R.S. sec. 10:9-103(5) will be financed at the wellhead or minehead of
           the well or mine.
      [_]  The debtor(s) do not have an interest of record in the real property.
           (Enter name and social security/employer i.d. number of an owner of
           record in 7E and 7C).

<TABLE>
<S>                                                                   <C>                <C>
- ----------------------------------------------------------------------------------------------------------------------------------
 7B.  OWNER OF REAL PROPERTY (If other than named debtor) (Enter name and social         7C. SS# OR EMPLOYER ID NO.
security/employer i.d. number of an owner of record in 7E and 7C).
- ----------------------------------------------------------------------------------------------------------------------------------
 8A.  This statement is filed without the debtor's signature to       8B. [_] Debtor is a transmitting Utility.  Filing is
perfect a security interest in collateral (check [_] if so):          effective until terminated pursuant to R.S. secs 10:9-403(8)
 [_]  Already subject to a security interest in another
      jurisdiction when it was brought into this state or debtor's
      location changed to this state.

 [_]  Which is proceeds of the original collateral described
      above in which a security interest was perfected.

 [_]  As to which the filing has lapsed.

 [_]  Acquired after a change of debtor's name, identity or
      corporate structure AND social security/employer id #
- ----------------------------------------------------------------------------------------------------------------------------------
 9  SIGNATURE(S) OF DEBTOR(S)                                         12.  THIS SPACE FOR USE OF FILING OFFICER (DATE, TIME,
            Wireless 2000, Inc.                                       ENTRY # AND FILING OFFICER)


   /s/ Joan S. Ducote
   President
- --------------------------------------------------------------------
 10.  SIGNATURE(S) OF SECURED PARTY(IES) (if applicable)

=====================================================================
 11.  Return copy to:

 NAME              CT Corporation Systems
                   17 South High Street
 ADDRESS           Suite 1100
                   Columbus, OH  43215
 CITY, STATE
                                                                       ===========================================================
</TABLE>
<PAGE>

                           United States of America
                       Federal Communications Commission

                          RADIO STATION AUTHORIZATION

[STAMP APPEARS HERE]         Commercial Mobile Radio Services
                  Personal Communications Service - Broadband

                                                          Call Sign:  KNLF392
                                                          Market:     B238
                                                                LAKE CHARLES, LA
WIRELESS 2000 INC
WIRELESS 2000 LLC                                               Channel Block: C
208 N. WASHINGTON
MARKSVILLE, LA 71351                                   File Number:00204-CW-L-96

- --------------------------------------------------------------------------------
The licensee hereof is authorized, for the period indicated, to construct and
operate radio transmitting facilities in accordance with the terms and
conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory and all pertinent rules and regulations of the Federal Communications
Commission contained in the Title 47 of the U.S. Code of Federal Regulations.
- --------------------------------------------------------------------------------
     Initial Grant Date..........................  September 17, 1996

     Five-year Build Out Date....................  September 17, 2001

     Expiration Date.............................  September 17, 2006
- --------------------------------------------------------------------------------
CONDITIONS
- ----------
Pursuant to Section 309(h) of the Communications Act of 1934, as amended, (47
U.S.C. (S) 309(b)), this license is subject to the following conditions: This
license does not vest in the licensee any right to operate a station nor any
right in the use of frequencies beyond the term thereof nor in any other manner
than authorized herein. Neither this license nor the right granted thereunder
shall be assigned or otherwise transferred in violation of the Communications
Act of 1934, as amended (47 U.S.C. (S) 151, et seq.). This license is subject in
terms to the right of use or control conferred by Section 706 of the
Communications Act of 1934, as amended (47 U.S.C. (S) 606).

Conditions continued on Page 2.

- --------------------------------------------------------------------------------

WAIVERS :
- -------
No waivers associated with this authorization.



- --------------------------------------------------------------------------------
Issue Date: September 17, 1996
FCC Form 463a.                                                       Page 1 of 2
<PAGE>

KNLF392                     WIRELESS 2000, INC.                    00204-CW-L-96



CONDITIONS:


This authorization is subject to the condition that, in the event that systems
using the same frequencies as granted herein are authorized in an adjacent
foreign territory (Canada/United States), future coordination of any base
station transmitters within 72 km (45 miles) of the United States/Canada border
shall be required to eliminate any harmful interference to operations in the
adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.


This authorization is conditioned upon the full and timely payment of all monies
due pursuant to Sections 1.2110 and 24.711 of the Commission's Rules and the
terms of the Commission's installment plan as set forth in the Note and Security
Agreement executed by the licensee. Failure to comply with this condition will
result in the automatic cancellation of this authorization.









Issue Date: September 17, 1996                                       Page 2 of 2
FCC Form 463a
<PAGE>

                         Installment Payment Plan Note
  (Broadband Personal Communications Service, C Block): Auction Event No. 5)


US $4,731,181.64
Washington, D.C.                                              September 17, 1996

License No.: PBB238C
             -------

     FOR VALUE RECEIVED, the undersigned, Wireless 2000, Inc., a CORPORATION
("Maker"), promises to pay to the order of the FEDERAL COMMUNICATIONS
COMMISSION, an independent regulatory agency of the United States ("Payee" or
"Commission"), the principal sum of 4,731,181.64 DOLLARS ("Principal Amount"),
together with accrued interest, computed at the annual rate of seven percent
(7.00%) per annum, ("Annual Rate") on the unpaid Principal Amount hereof, from
the date of this Note until the date the entire Principal Amount has been paid
in full.

     Interest and principal shall be payable as set forth below and in
accordance with Schedule A attached hereto and made a part hereof:

     Interest only, at the Annual Rate from the date hereof until the last day
of the month ninety (90) days hence, shall be due and payable on December 31,
1996 in the amount of $95,217.74. Commencing December 31, 1996, Maker shall pay
interest only at the Annual Rate, in equal consecutive quarterly installments of
$82,795.68, due on the last day of the month and every ninety (90) days
thereafter from December 31, 1996 through September 30, 2002.

     Commencing December 31, 2002, Maker shall pay principal and interest in
equal quarterly installments of $341,589.31, due on the last day of each month
ninety (90) days hence through and including June 30, 2006.

     The entire unpaid Principal Amount, together with accrued and unpaid
interest thereon, and all remaining obligations of Maker hereunder, shall be due
and payable on September 17, 2006 ("Maturity Date").

     All interest shall be computed on the basis of a 360-day year for actual
days elapsed.

     All payments to be made hereunder, of principal, interest, costs, expenses,
or other sums due hereunder, shall be made to the holder of this Note in lawful
money of the United States of America which at the time of payment shall be
legal tender for the payment of public and private debts, free and clear and
without reduction by reason of any present or future income, stamp or other
taxes, levies, imposts, deductions, charges, compulsory loans or withholdings
whatsoever, including interest thereon or penalties with respect thereto, if any
imposed, assessed, levied or collected by any political subdivision or taxing
authority thereof or therein, on or in respect of this Note or the obligations
it evidences. All payments shall be made during normal business hours at the
Commission's designated lockbox location as set forth from time to time in the
<PAGE>

Commission's then-applicable orders and regulations and/or public notices.

     This Note is secured by, and entitled to the benefits of, a Security
Agreement (the "Security Agreement") of even date between Maker and Payee. All
the terms, covenants, conditions and agreements contained in the Security
Agreement are hereby incorporated herein and made part of this Note to the same
extent and effect as if fully set forth herein. It is expressly understood by
Maker that all of the terms of the Security Agreement apply to this Note and
that reference in the Security Agreement to "this Agreement" includes both the
Security Agreement and this Note.

     IT IS HEREBY EXPRESSLY AGREED THAT TIME IS OF THE ESSENCE FOR THE
PERFORMANCE OF ALL TERMS AND CONDITIONS UNDER THIS NOTE AND THE SECURITY
AGREEMENT.

     A default under this Note ("Event of Default") shall occur upon any or all
of the following:

     a.   non-payment by Maker of any Principal or Interest on the due date as
specified hereinabove if the Maker remains delinquent for more than 90 days and

               (1)  Maker has not submitted a request, in writing, for a grace
                    period or extension of payments, if any such grace period or
                    extension of payments is provided for in the then-applicable
                    orders and regulations of the Commission; or

               (2)  Maker has submitted a request, in writing, for a grace
                    period or extension of payments, if any such grace period or
                    extension of payments is provided for in the then-applicable
                    orders and regulations of the Commission, and following the
                    expiration of the grant of such grace period or extension or
                    upon denial of such a request for a grace period or
                    extension, Maker has not resumed payments of Interest and
                    Principal in accordance with the terms of this Note;
 or;

     b.   failure by Maker to comply with any other condition for holding the
above referenced license (as defined in the Security Agreement) as set forth in
the license or in the Communications Act of 1934, as amended, or the then-
applicable orders and regulations of the Commission; or

     c.   violation by Maker of any other covenant or term of this Note or the
Security Agreement.

Upon any Event of Default under this Note, Payee may assess a late fee and/or
administrative charge, plus the costs of collection, litigation, attorneys'
fees, and default payment as specified in the then-applicable orders and
regulations of the Commission, as amended, and Maker
<PAGE>

acknowledges that it is liable and herein expressly promises to pay on demand
such additional costs, expenses, late charges, administrative charges, attorneys
fees, and default payment. Upon a default under this Note, the unpaid Principal
Amount, plus all unpaid interest accrued thereon, together with any late fee
and/or administrative charge, plus the costs of collection, litigation,
attorneys' fees, and default payment as specified in the then-applicable orders
and regulations of the Commission, as amended, shall become immediately due and
payable. The Maker hereby acknowledges that the Commission has issued Maker the
above referenced license pursuant to the Communications Act of 1934, as amended,
that is conditioned upon full and timely payment of financial obligations under
the Commission's installment payment plan, as set forth in the then-applicable
orders and regulations of the Commission, as amended, and that the sanctions and
enforcement authority of the Commission shall remain applicable in the event of
a failure to comply with the terms and conditions of the license, regardless of
the enforceability of this Note or the Security Agreement.

     No delay or omission on the part of Payee in exercising any right under
this Note, the Security Agreement, or any other instrument securing this Note,
shall operate as a waiver of such right or of any other right of Payee, nor
shall any waiver by Payee of any such right or rights on any one occasion be
deemed a bar to or waiver of the same right or rights on any future occasion.

     The Maker is liable for all costs of collection or enforcement of the
Payee's rights under this Note or under the Security Agreement or under any
other instrument now or hereafter executed by Maker in favor of Payee which in
any manner evidences or constitutes additional security for this Note, including
reasonable attorneys' fees, whether suit is brought or not, and all such costs
shall be paid by the Maker on demand, and whether or not such collection or
enforcement occurs in any bankruptcy, reorganization, receivership or other
proceedings involving creditors' rights or involving a claim under this Note or
any of the other loan documents.

     Maker, all endorsers and guarantors hereof and any other party who may
become liable for all or any part of the obligation evidenced hereby, waive
presentment for payment, notice or dishonor, protest and notice of protest,
notice of nonpayment and any and all lack of diligence or delays in collection
or enforcement of this Note.

     Maker may prepay all or any part of the Principal Amount without premium or
penalty upon ten (10) days' prior written notice to Payee, given in the manner
provided in the Security Agreement.

     Partial prepayments shall not postpone or reduce regular payments to be
made hereunder. All such prepayments shall be applicable first to the payment of
late charges, if any, costs and expenses, and administrative penalties due
hereunder, then to accrued and unpaid interest, then to that portion of the
unpaid Principal Amount due on the Maturity Date and then, if applicable, to any
unpaid installments of principal in the inverse order of installment maturities.
The Payee may require that any partial prepayments be made on the dates
installments of principal and interest are due hereunder.
<PAGE>

     Anything to the contrary notwithstanding, Payee shall not charge, take or
receive, and Maker shall not be obligated to pay to Payee, any amounts
constituting interest on the Principal Amount in excess of the maximum rate
permitted by applicable law. If by reason of the acceleration of the unpaid
Principal Amount or otherwise, interest in excess of the highest legal contract
rate permitted by applicable law shall at any time be paid, any such excess
shall constitute and be treated as a payment of outstanding principal hereunder
and shall operate to reduce such outstanding Principal Amount.

     ANY LEGAL ACTION OR PROCEEDING RELATING TO THIS NOTE, THE SECURITY
AGREEMENT, OR OTHER DOCUMENTS EVIDENCING OR SECURING THE DEBT TRANSACTION
EVIDENCED HEREBY MAY ONLY BE BROUGHT IN THE UNITED STATES DISTRICT COURT FOR THE
DISTRICT OF COLUMBIA, AND, BY EXECUTION AND DELIVERY OF THIS NOTE AND SECURITY
AGREEMENT, THE MAKER HEREBY ACCEPTS FOR ITSELF AND IN RESPECT OF ITS PROPERTY
GENERALLY AND UNCONDITIONALLY, THE JURISDICTION OF THE AFORESAID COURT. THE
PARTIES HERETO HEREBY IRREVOCABLY WAIVE ANY OBJECTION, INCLUDING, WITHOUT
LIMITATION, ANY OBJECTION TO THE LAYING OF VENUE OR BASED ON THE GROUNDS OF
FORUM NON CONVENIENS, WHICH ANY OF THEM MAY NOW OR HEREAFTER HAVE TO THE
BRINGING OF ANY SUCH ACTION OR PROCEEDING IN THE DISTRICT OF COLUMBIA.

     THE MAKER IRREVOCABLY CONSENTS TO THE SERVICE OF PROCESS OF THE
AFOREMENTIONED COURT IN ANY SUCH ACTION OR PROCEEDING BY THE MAILING OF A COPY
THEREOF BY CERTIFIED MAIL, RETURN RECEIPT REQUESTED, POSTAGE PREPAID, TO THE
MAKER AT ITS ADDRESS PROVIDED HEREIN. SUCH SERVICE SHALL BE DEEMED TO HAVE
OCCURRED ON THE THIRD DAY AFTER SUCH MAILING. NOTHING CONTAINED HEREIN SHALL
AFFECT THE RIGHT OF PAYEE TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY LAW
OR COMMENCE LEGAL PROCEEDINGS OR OTHERWISE PROCEED AGAINST THE MAKER IN ANY
OTHER JURISDICTION.

     EACH OF THE PARTIES HERETO HEREBY KNOWINGLY, WILLINGLY, VOLUNTARILY,
UNCONDITIONALLY, IRREVOCABLY AND INTENTIONALLY FOREVER WAIVES ANY RIGHT IT MAY
HAVE TO TRIAL BY JURY IN RESPECT OF ANY LITIGATION BASED ON, OR ARISING OUT OF,
UNDER OR IN CONNECTION WITH THIS NOTE, THE SECURITY AGREEMENT, OR OTHER
DOCUMENTS EVIDENCING OR SECURING THE DEBT TRANSACTION EVIDENCED HEREBY, ANY
COURSE OF CONDUCT, COURSE OF DEALING, STATEMENTS (VERBAL OR WRITTEN) OR ACTION
OF ANY PERSON OR ANY EXERCISE BY ANY PARTY OF THEIR RESPECTIVE RIGHTS UNDER THIS
TRANSACTION, DOCUMENT OR ANY RELATED DOCUMENT OR IN ANY WAY RELATING TO THE
COLLATERAL (INCLUDING, WITHOUT LIMITATION, ANY ACTION TO RESCIND OR CANCEL THIS
TRANSACTION OR ANY CLAIMS OR DEFENSES ASSERTING THAT THIS TRANSACTION, IN WHOLE
OR IN PART, WAS FRAUDULENTLY INDUCED OR IS OTHERWISE VOID OR VOIDABLE). MAKER
REPRESENTS THAT NO ORAL OR
<PAGE>

WRITTEN STATEMENTS HAVE BEEN MADE BY ANY PARTY TO INCLUDE THIS SUBMISSION OR
JURISDICTION AND WAIVER OF TRAIL BY JURY OR IN ANY WAY TO MODIFY OR NULLIFY ITS
STATED EFFECT. MAKER FURTHER REPRESENTS THAT IT HAS BEEN REPRESENTED BY
INDEPENDENT COUNSEL, SELECTED BY ITS OWN FREE WILL, IN SIGNING THIS NOTE AND IN
THE MAKING OF THIS WAIVER AND THAT IT HAS HAD THE OPPORTUNITY TO DISCUSS THIS
WAIVER WITH SUCH COUNSEL. THIS PROVISION IS A MATERIAL INDUCEMENT FOR PAYEE TO
ENTER INTO THIS TRANSACTION AND THE VARIOUS DOCUMENTS RELATED THERETO.

     Maker acknowledges that this Note and Security Agreement (any attachments
affixed thereto by the Commission with the permission and knowledge of the
Maker/Debtor), along with the then-current applicable Commission orders and
regulations and the Communications Act of 1934, as amended, set forth the entire
agreement, written and oral, of the parties, and all inconsistent prior
statements, understandings, notices, representations and agreements between the
parties, oral or written, are superseded by and merged in this Note, the
Security Agreement or other documents evidencing or securing the debt
transaction evidenced hereby. Except as otherwise expressly provided herein, all
of Payee's representations, warranties, covenants and agreements in this Note
and Security Agreement shall merge in the documents and agreements executed by
the Maker and shall not survive said execution.

     If any provision or part of this Note and/or the Security Agreement shall
for any reason be held or deemed to be invalid, illegal, or unenforceable in any
respect, such invalidity, illegality or unenforceability shall not affect any
other provision of this Note and this Note shall be construed as if such
invalid, illegal or unenforceable provision had never been contained herein and
the remaining provisions of this Note shall remain in full force and effect. The
enforceability of the Note and/or the Security Agreement do not alter the rights
and obligations of the Maker and Payee under the Communications Act of 1934, as
amended, or under the then-applicable orders and regulations of the Commission,
as amended.

     Any notice demand or request hereunder shall be given in the manner set
forth in the Security Agreement.

     This Note shall be governed by and construed in accordance with the
Communications Act of 1934, as amended, the then-applicable orders and
regulations of the Commission, and federal law. Nothing in this Note shall be
deemed to modify any then-applicable orders and regulations of the Commission,
and nothing in this Note shall be deemed to release the Maker from compliance
therewith. This Note may not be changed, modified, waived, terminated or
discharged orally, but only by an agreement in writing executed by the party
against whom enforcement of any such change, modification, waiver, termination,
or discharge is sought.

     Maker represents and warrants that any statements made by or on behalf of
Maker in connection with this Note: (i) are true and accurate in all material
respects; and (ii) do not omit any material facts or information that would make
such statement misleading in the context of Payee's evaluation of the note, and
acknowledges and agrees that Payee is entitled to and his relied on such
statements in agreeing to the Note.
<PAGE>

     Payee shall have the right at any time to assign, endorse, pledge, convey
or otherwise transfer this Note and all of the other loan documents to any
party. From and after the date of such assignment, endorsement, pledge,
conveyance or other transfer, such transferee shall be entitled to exercise any
and all rights and remedies of Payee hereunder. Maker shall not assign, convey
or otherwise transfer its rights and obligations hereunder without the prior
written consent of the Commission.


Date:  11/21/96                              WIRELESS 2000, INC.
                                                       [NAME OF MAKER]

                                             By:  /s/ Joan S. Ducote
                                                -----------------------
                                             Its: President
                                                 ---------------------------
<PAGE>

                              SECTION AGREEMENT
  (Broadband Personal Communications Service, C Block): Auction Event No. 5)

License No.  PBB238C
             -------

     This SECURITY AGREEMENT DATED September 17, 1996, ("Agreement") between
Wireless 2000, Inc., a CORPORATION ("Debtor") and the FEDERAL COMMUNICATIONS
COMMISSION, an independent regulatory agency of the United States ("Commission"
or "Secured Party")

                                  WITNESSETH

     WHEREAS, Debtor has submitted the highest accepted bid for license number
PBB238C in the Broadband Personal Communications Service C Block auction
(hereinafter the "License") conducted by the Commission to assign such licenses;

     WHEREAS, the Commission has duly determined to grant the License to Debtor,
subject to the terms and conditions set forth in the orders and regulations of
the Commission applicable to such licenses, and the Communications Act of 1934,
as amended;

     WHEREAS, Debtor wishes to pay its auction price for the License by
installments through an Installment Payment Plan as provided by 47 C.F.R. ss.ss.
24.711, 1.2110 (hereinafter the "Installment Payment Plan") and undertakes to
hold the License under the terms and conditions set forth in the Commission's
orders and regulations, as amended, applicable to such licenses, and the
Communications Act of 1934, as amended and the terms and conditions of this
Agreement;

     WHEREAS, the Commission has agreed to permit the Debtor to make payment of
the auction price for the License through an Installment Payment Plan; and

     WHEREAS, as a condition to such agreement, Debtor has agreed to execute the
Installment Payment Plan Note of even date ("Note") and to enter into this
Agreement and make the pledge and assignment of collateral contemplated herein.

     NOW, THEREFORE, in consideration of the premises, the mutual agreements
contained herein and for other good and valuable consideration, the receipt,
adequacy, and sufficiency of which is hereby acknowledged, and in order to
induce the Commission to permit Debtor to pay the auction price for the License
through the Installment Payment Plan, Debtor hereby agrees with the Commission
as follows:

     1. Pledge and Assignment of Collateral of Obligations Under Note. Debtor
        -------------------------------------------------------------
hereby pledges, assigns, hypothecates, delivers, and sets over to the Commission
and grants to the Commission a first lien on and continuing security interest in
all of the Debtor's rights and
<PAGE>

interest in the License and all proceeds, profits and products of any sale of or
other disposition thereof (collectively the "Collateral"), all as collateral
security for the prompt and complete payment when due (whether in accordance
with the schedule of payments, at the stated maturity, by acceleration, or
otherwise) of the unpaid principal and interest due, and such other additional
costs, expenses, late charges, administrative charges, attorneys fees, and
default payments assessable under the terms of the Note (all collectively
"Obligations"). It is expressly understood by Debtor that all of the terms of
the Note apply to this Agreement and that reference herein to "this Agreement"
includes both the Security Agreement herein and the Note. For purposes of
interpreting the terms used in this Agreement shall have the meaning ascribed to
them in the Uniform Commercial Code (Official Text and Comments, American Law
Institute).

     2. Interest of Commission. It is understood and acknowledged by Debtor that
        ----------------------
pursuant to Section 301 of the Communications Act of 1934, as amended, the
Commission is charged with the regulatory mandate to maintain control over all
channels of radio transmission (the "Spectrum"), and to provide licenses for the
use of such radio channels, but not ownership thereof. Debtor understands and
acknowledges that it holds a mere conditional license to use the Spectrum with
no ownership interest in the Collateral (or any underlying right to use the
Spectrum), or any power to assign the License without the prior Approval of the
Commission pursuant to Section 310(d) of the Communications Act of 1934, as
amended. Debtor further understands and acknowledges that it is giving a
security interest to the Commission in the Collateral only to assist the
Commission in protecting its ability to enforce the Commission's regulations
which condition holding the license in compliance with all then-applicable
orders and regulations of the Commission, including, but not limited to, full
and timely payment of all payments under the Installment Payment Plan. To that
end, and not in derogation of any of the Commission's regulatory authority over
the License, Debtor hereby acknowledges that the Commission has a first security
interest in the Collateral, and Debtor shall not dispute such first security
interest, or the Commission's rights as a secured party hereunder, in any legal
or equitable proceeding in which Debtor, or any assignee or trustee of the
estate of Debtor in bankruptcy, is a party.

     3. Compliance with Commission Orders and Regulations. Nothing in this
        -------------------------------------------------
Agreement shall be deemed to modify any then-applicable orders and regulations
of the Commission, and nothing in this Agreement shall be deemed to release
Debtor from compliance therewith.

     4. Representations and Warranties of Debtor. Debtor represents and warrants
        ----------------------------------------
to the Commission as follows:

     (a)  It has full power, authority and legal right to execute, deliver and
perform this Agreement, the Note, and any other documents delivered in
connection with the Note, this Agreement and the transactions contemplated
therein to make the debt transaction evidenced by the Note, and to pledge the
Collateral pursuant to this Agreement.

     (b)  It is a duly organized CORPORATION existing in good standing under the
laws of LOUISIANA and is duly qualified to do business wherever necessary to
carry on its present operations. Its principal place of business and chief
executive office are located at 219 NORTH
<PAGE>

WASHINGTON STREET, MARKSVILLE, LA 71351.

     (c)  The representative of Debtor purporting to act on behalf of Debtor in
executing this Agreement, the Note, and any other documents delivered in
connection with the Note, this Agreement and the transactions contemplated
therein, is duly authorized by Debtor to take all such acts and to execute all
such documents.

     (d)  No security agreements have been executed and delivered, and no
financing statements have been filed in any jurisdiction, granting or purporting
to grant a security interest in the Collateral to any secured party except to
the Commission.

     (e)  No consent of any other party and no consent, license, approval or
authorization of, exemption by, or registration or declaration with, any
governmental instrumentality, domestic or foreign other than the Commission, is
required to be obtained in connection with the execution, delivery or
performance of this Agreement, the Note or any other document executed and
delivered in connection with the delivery of the Note or this Agreement.

     (f)  The execution, delivery and performance of this Agreement and the
Note, does not and will not violate any provision of any applicable law or
regulation or any order, judgment, writ, award or decree of any court,
arbitrator, governmental instrumentality, domestic or foreign, or of any
indenture, contract, agreement or other undertaking to which Debtor is a party
or which purports to be binding upon Debtor or upon any of Debtor's assets, and
will not result in the creation or imposition of any lien, charge or encumbrance
on or security interest in any of the assets of Debtor, except as contemplated
by this Agreement.

     (g)  All right and interest of any kind in and to the Collateral is held by
Debtor or the Commission and by no other party, and the Collateral is free from
any lien, security interest, encumbrance or adverse claim of any kind whatsoever
thereon. Debtor will not permit any financing statement to be filed with respect
to the Collateral or any portion thereof or interest therein except in favor of
Secured Party. Debtor will notify Secured Party of, and will defend the
Collateral against, all claims and demands of all persons at any time claiming
the same or any interest therein.

     5. Covenants of Debtor. Debtor hereby covenants and agrees as follows:
        -------------------

     (a)  That it will defend the Commission's right, title and security
interest in and to the Collateral against the claims and demands of all persons
whomsoever.

     (b)  That it will execute all financing statements and other instruments or
documents related to the perfection of the Commission's security interest,
including but not limited to any renewal financing statements or instruments as
required to maintain the Commission's security interest, or as otherwise
reasonably requested by the Commission, and to file and pay the cost of filing
any such instruments or documents as required under this paragraph in whichever
public office deemed advisable by the Commission.

     (c)  That it will not make any indenture, contract, agreement or other
undertaking to
<PAGE>

which Debtor is a party or which purports to be binding upon Debtor, or upon any
of Debtor's assets, that would result in the creation or imposition of any lien,
charge or encumbrance on or security interest in any of the assets of Debtor
that would be inconsistent with its pledge and assignment of the Collateral
hereunder, except as contemplated by this Agreement. Except for the liens and
encumbrances created hereby, Debtor will keep the Collateral free and clear of
any lien, security interest or encumbrance.

     (d)  That it will pay all costs and expenses, including reasonable
attorneys' fees, of the Commission incurred in connection with the enforcement
of this Agreement and any and all liability incurred by the Commission resulting
from any act or omission of Debtor with respect to the Collateral and this
Agreement.

     (e)  Debtor will execute, alone or with Secured Party, any document, will
procure any document and do all other acts and pay all connected costs, in a
timely and proper manner, which from the character or use of the Collateral may
be reasonably necessary to protect the Collateral against the rights, claims or
interests of third persons, and will otherwise preserve the Collateral as
security hereunder. The specific undertakings required of Debtor in this
Agreement shall not be construed to exclude the aforementioned general
obligation.

     6. Power of Attorney. Debtor hereby irrevocably constitutes and appoints
        -----------------
the Commission and any officer or agent thereof, with full power of
substitution, as its true and lawful attorney-in-fact with full irrevocable
power and authority in the place and stead of Debtor and in the name of Debtor
or in its own name, from time to time in the Commission's discretion, for the
purpose of carrying out the terms of this Agreement and, to the extent permitted
by applicable law, to take any and all appropriate actions and to execute any
and all documents and instruments which may be necessary or desirable to
accomplish the purposes of this Agreement. Such appointment is a power coupled
with an interest until all Obligations have been paid in full by Debtor.

     7. Event of Default. Debtor shall be in default under this Agreement if an
        ----------------
Event of Default (as defined in the Note) has occurred.

     8. Remedies. If an Event of Default shall occur, the Commission shall
        --------
thereafter have the following rights and remedies (to the extent permitted by
applicable law) in addition to the rights and remedies relating to the Note, all
such remedies being cumulative, not exclusive, and enforceable alternatively,
successively or concurrently at such time or times as Commission deems
expedient:

     (a)  the License shall be automatically canceled pursuant to 47 C.F.R. ss.
1.2110;

     (b)  all Obligations; secured hereunder shall become immediately due and
payable without presentment, demand, protest, further notice, or other
requirements of any kind;

     (c)  the Commission may demand, sue for, and collect the outstanding
balance of the unpaid Obligations, and make any compromise, or settlement the
Commission deems suitable with respect to any Collateral which may be held by it
hereunder;
<PAGE>

     (d)  Debtor hereby acknowledges the Commission's authority, pursuant to the
Communications Act of 1934, as amended, and the Commission's orders and
regulations then-applicable to such licenses, to conduct another public auction
or assign the License in the event that the Commission rescinds, cancels, or
revokes the License for any default under this Agreement or any other violation
of the terms and conditions of the License. The Undersigned hereby waives all
notices prior to the conduct of said public auction or assignment by the
Commission or its agents. Debtor further acknowledges that in the event that the
Commission rescinds, cancels, or revokes the License for any default under this
Agreement or any other violation of the terms and conditions of the License,
Debtor has no right or interest in any moneys or evidence of indebtedness given
to the Commission by a subsequent licensee of the Spectrum and that all such
moneys or evidence of indebtedness are, and shall remain, the full property of
the federal Treasury, pursuant to Section 309(j) of the Communications Act of
1934, as amended, and then-applicable Commission orders and regulations.

     (e)  In addition to other remedies hereunder, Debtor shall remain liable,
and obligated to pay on demand, all costs of collection and reasonable
attorneys' fees and expenses incurred or paid by the Commission in enforcing
this Agreement including, without limitation, all administrative fees and
expenses of the Commission in attempting to collect the Obligations or to
enforce this Agreement, or the prosecution or defense of any action or
proceeding related to the subject matter of this Agreement, and all payments
assessed by the Commission in the event of default as specified in Commission
orders and regulations applicable to such licenses.

     (f)  Debtor hereby acknowledges that the Commission has no adequate remedy
at law with respect to a breach of any covenant contained in this Agreement and,
as a consequence, agrees that each and every covenant contained in this
Agreement shall be specifically enforceable against Debtor, and Debtor hereby
waives and agrees not to assert any defense against an action for specific
performance of such covenants.

     (g)  Secured Party may exercise any and all of the rights and remedies
conferred upon Secured Party by this Agreement, any other loan documents, or by
applicable law, either concurrently or in such order as Secured Party may
determine.

     (h)  Secured Party may make such payments and do such acts as Secured Party
may deem necessary to protect its secured interest in the Collateral.

     (i)  the Commission may exercise any remedies of a Secured Party under the
Uniform Commercial Code (Official Text and Comments, American Law Institute), or
any other applicable law.

     (j)  Secured Party shall have the right to enforce one or more remedies
hereunder or under the Note, successively or concurrently, and such action shall
not operate to estop or prevent Secured Party from pursuing any further remedy
which it may have.

     9.   Severability. Any provision of this Agreement that is prohibited or
          ------------
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the
remaining provisions hereof, and any such prohibition
<PAGE>

or unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

     10.  No Waiver; Cumulative Remedies. None of the terms or provisions of
          ------------------------------
this Agreement may be waived, altered, modified or amended except by an
instrument in writing, duly executed by the Commission. The Commission shall not
by any act, delay, omission or otherwise be deemed to have waived any of its
rights or remedies under this Agreement, and no waiver shall be valid unless in
writing, signed by the Commission, and then only to the extent therein set
forth. A waiver by the Commission of any right or remedy under this Agreement on
any one occasion shall not be construed as a bar to any right or remedy which
the Commission would otherwise have on any future occasion. No failure to
exercise nor any delay in exercising on the part of the Commission, any right,
power or privilege under this Agreement shall operate as a waiver thereof; nor
shall any single or partial exercise of any right, power or privilege under this
Agreement preclude any other or further exercise thereof or the exercise of any
other right power or privilege. The rights and remedies provided in this
Agreement are cumulative and may be exercised singly or concurrently and are not
exclusive of any rights or remedies provided by law.

     11.  Compliance With Other Applicable Orders and Regulations. Debtor
          -------------------------------------------------------
recognizes that its continued retention of the License, and rights to operate as
a Commission licensee thereunder, are conditioned upon compliance with all
Commission orders and regulations applicable to the License and the
Communications Act of 1934, as amended. Debtor further recognizes that full and
timely payment as set forth in the Note does not otherwise relieve it of its
obligations otherwise to comply with the then-applicable orders and regulations
of the Commission, and the Communications Act of 1934, as amended.

     12.  Applicable Law. This Agreement shall be governed by and construed in
          ---------------
accordance with Communications Act of 1934, as amended, then-applicable
Commission orders and regulations, as amended, and federal law.

     13.  Successors, Assigns, Designated Agents. Subject to the provisions of
          --------------------------------------
Paragraph 2 of this Agreement regarding the restriction upon Debtor's ability to
assign the License, this Agreement shall be binding upon Debtor, its successors
and assigns and shall inure to the benefit of the Commission, and its successors
and assigns. The Commission may designate agents other than the Commission to
act on its behalf with respect to any and all rights and remedies of the
Commission under this Agreement or the Note, and such designee shall have all of
the rights, powers and remedies available to the Commission within the scope of
its designation. Nothing herein, however, shall be construed as granting Debtor
any right to sell or assign the License.

     14.  Singular and Plural. Wherever used, the singular number shall include
          -------------------
the plural, the plural shall include the singular, and the use of any gender
shall be applicable to all genders.

     15.  Financing Statements. To the extent permitted by applicable law,
          --------------------
Debtor authorizes the Commission to sign and file financing statements at any
time with respect to any of the Collateral without the signature of Debtor.
Debtor will, however, at the same time and from time to time, execute such
financing statements, agreements and other instruments and perform such
<PAGE>

acts as Commission may request in order to establish and maintain a validly
perfected first priority security interest in the Collateral. All reasonable
costs of filing and recording will be paid by Debtor.

     16.  Indemnification. Debtor hereby agrees to defend, indemnify and hold
          ---------------
harmless Secured Party and its employees, officers and agents, from and against
any and all liabilities, claims and obligations which may be incurred, asserted
or imposed upon them or any of them as a result of or in connection with any
use, operation, lease or consumption of any of the Collateral or as a result of
Secured Party's seeking to obtain performance of any of the obligations due with
respect to the Collateral.

     17.  Notices. All notices, requests and demands hereunder shall be in
          -------
writing and shall be deemed to have been duly given, made or served on the
earliest of (i) three (3) business days after the date mailed if sent by first-
class U.S. mail, postage prepaid, (ii) actual delivery thereof if delivered by
hand to the party to be notified, (iii) receipt thereof if sent by express mail
or other overnight courier service, or (iv) transmission to the telecopier
number listed below for the party to be notified if sent within normal business
hours or, otherwise, on the next business day thereafter. In each case such
notification with respect to the Debtor and the Commission shall be addressed as
set forth below or as may be hereafter designed by the respective parties
hereto.

As to Debtor:       WIRELESS 2000, INC.
- ------------
                    P.0. BOX 337
                    219 NORTH WASHINGTON STREET
                    MARKSVILLE, LA 71351
                    ATTN: JOAN S. DUCOTE, PRESIDENT

As to the
- ---------
Commission:         U.S. DEPARTMENT OF THE TREASURY
- ----------
                    P.0. BOX 44093
                    WASHINGTON, D.C. 20026-4093
                    ATTN: FCC-FMS/DEBT MANAGEMENT SERVICE
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed and delivered as of the day and year first above written.

     DEBTOR:
     ------

                         WIRELESS 2000, INC.

     Date: 11/21/96      By:  /s/ Joan S. Ducote
          ---------         --------------------
                         Its: PRESIDENT



                       FEDERAL COMMUNICATIONS COMMISSION
                       ---------------------------------

     Date: 12/18/96      By:  /s/ [signature illegible]
                            ---------------------------
                         Its: Associate Managing Director
                              for Operations (or designee)
<PAGE>

License No.: PBB238C
Modified License No.: PBB238C1


                             FIRST MODIFICATION OF
                             ---------------------
                         INSTALLMENT PAYMENT PLAN NOTE
                         -----------------------------
                           FOR BROADBAND PCS C BLOCK
                           -------------------------

     THIS FIRST MODIFICATION OF INSTALLMENT PAYMENT PLAN NOTE ("First
Modification") is executed on the 21st day of July, 1998, and is intended to be
effective for all purposes as of the 31st day of July, 1998 ("Effective Date"),
by and between: (i) WIRELESS 2000, INC., A Louisiana Corporation ("Maker"); and
(ii) FEDERAL COMMUNICATIONS COMMISSION, an independent regulatory agency of the
United States ("Payee" or "Commission").

                             W I T N E S S E T H:
                             - - - - - - - - - -

RECITALS:
- --------

     R-1. Reference is made to that certain Installment Payment Plan Note made
by Maker, payable to the order of the Commission, in the original principal
amount of $4,731,181.65 ("Original Note"). The Original Note is secured by,
amongst other things (i) that certain Security Agreement by and between the
Maker and the Commission ("Security Agreement"); and (ii) those certain
Financing Statements related thereto (collectively, "Financing Statements"). The
Original Note, Security Agreement, Financing Statements and all other documents
evidencing, governing or securing the Original Note, together with any and all
amendments, modifications or supplements thereto, are hereinafter collectively
referred to as the "Loan Documents". All of the terms, conditions and provisions
of the Loan Documents are hereby incorporated herein and made a part hereof in
their entireties by this reference.

     R-2. The Security Agreement and Financing Statements created a first
lien security interest in the "License" and the "Collateral" (as those terms are
defined in the Security Agreement).

     R-3. Pursuant to that certain Public Notice, DA 97-649 (rel. March 31,
1997) ("Suspension Order"), the Commission suspended the deadline for payment of
installment payments required to be made under the Original Note. Pursuant to
that certain Second Report and Order and Further Notice of Proposed Rule Making
adopted September 25, 1997 and released October 16, 1997 ("Second Report and
Order"), the Commission rescinded the Suspension Order and ordered the
reinstatement of payments under the Original Note effective March 31, 1998 and
agreed to a schedule of payment of all accrued and unpaid interest due under the
Original Note. The Second Report and Order was subsequently modified by that
certain Order on Reconsideration of the Second Report and Order adopted March
23, 1998 and released March 24, 1998 ("Order on Reconsideration"). Pursuant to
the Order on Reconsideration and the Public Notice, DA-98-741 (rel. April 17,
1998), the date for the resumption of payments under the Original Note was
changed to July 31, 1998 as well as certain other modifications to the
<PAGE>

terms contained in the Second Report and Order.

     R-4. Pursuant to the terms of the Second Report and Order, as modified by
the Order of Reconsideration, the Maker elected to continue to operate under the
License and continue making payments under the Original Note in accordance with
its terms, subject to the modification of the payment terms with respect to
"Suspension Interest" and "Deferred Interest" (as those terms are defined
below).

     R-5. Pursuant to such election by Maker, Maker and the Commission are
entering into this First Modification for the purpose of modifying the Original
Note to provide for the repayment of all accrued and unpaid interest due under
the Original Note and to make certain other conforming changes to the Original
Note as provided herein. It is the intention of the Maker and the Payee that
except as specifically modified by this First Modification, the Original Note
shall continue in full force and effect.

     NOW, THEREFORE, in consideration of the covenants and agreements herein
contained, the sum of Ten dollars ($10.00) and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
undersigned parties hereby covenant and agree and amend the Original Note as
follows:

     1.   The foregoing Recitals, including all terms defined therein, are
hereby incorporated in this First Modifications in the same extent as if they
had been herein stated in full. The documents referred to in the Original Note
shall include the documents referred to therein, as well as any and all
modifications, amendments, additions and/or supplements thereto and/or
replacements thereof.

     2.   This First Modification shall amplify and modify where specifically
provided herein but shall not replace the Original Note. Except as specifically
modified herein, all the terms, conditions and obligations of the Original Note
shall remain in full force and effect, and all of the rights and remedies
provided for therein shall be preserved to the Commission. If there is any
conflict between the provisions of the First Modification and the provisions of
the Original Note, the provisions of this First Modification shall govern and
prevail. THE COMMISSION AND MAKER COVENANT AND AGREE THAT THIS FIRST
MODIFICATION ONLY MODIFIES THE TERMS OF THE ORIGINAL NOTE AND IS NOT A NOTATION
OF THE ORIGINAL NOTE.

     3.   The Security Agreement and Financing Statements will continue to
encumber the License and Collateral with a first lien security interest. The
Original Note, as modified by this First Modification (hereinafter collectively
referred to as the "Note"), and all extensions, renewals, modifications and
amendments and consolidations thereof or substitutions therefore shall continue
to be secured by the Security Agreement and all other documents, instruments,
certifications, security agreements and financing statements executed and
delivered in connection therewith by the Maker or by its successors. The
Original Note and this First Modification shall be entitled to the benefits of,
and to the security required to be provided by, the aforesaid documents, some of
which contain provisions for the acceleration of the maturity of the Note
<PAGE>

upon the happening of certain stated events.

     4.   The Amortization Schedule attached to the Original Note as Schedule A
is hereby deleted in its entirety. All references in the Original Note to
Schedule A are hereby deleted. All payments under the Note shall continue to be
made in accordance with the terms of the Original Note, as modified by the
provisions of this First Modification.

     5.   Maker and the Commission covenant and agree that pursuant to the terms
of the Suspension Order and the Second Report and Order, interest payments under
the Original Note were suspended for the period effective as of March 31, 1997
through and including March 31, 1998. The entire amount of unpaid interest that
accrued during the period beginning with the grant date of the License through
and including March 31, 1998 is hereinafter referred to as the "Suspension
Interest". All Suspension Interest is to be repaid in eight (8) equal payments
with the first such payment being due on the Effective Date. In addition,
pursuant to the terms of the Order on Reconciliation, (i) all interest accrued
on the Original Note from April 1, 1998 through the Effective Date ("Deferred
Interest") is due and payable in full on the Effective Date, (ii) all payments
under the Note were reinstated as of the Effective Date, and (iii) the schedule
for making quarterly interest and/or principal payments under the Note was
changed to require quarterly payments on October 31, January 31, April 30 and
July 31 of each year without any modification to the amounts for each payment as
provided in the Original Note, with the first such payment being due and payable
on October 31, 1998. Based upon the foregoing, the Original Note is hereby
amended to provide that the payments of interest and principal shall be as
follows:

     a.   On the Effective Date, Maker shall make a payment to Payee in the
amount of all Deferred Interest ("Deferred Interest Payment").

     b.   On the Effective Date, and continuing on each following October 31,
January 31, April 30 and July 31 thereafter until all Suspension Interest has
been paid in full, Maker shall make a payment equal to one-eighth (1/8th) of the
Suspension Interest outstanding as of March 31, 1998 ("Suspension Interest
Payment").

     c.   Thereafter, except as provided in Sections 5.a and 5.b above, Maker
shall continue to make interest only payments to the Commission at the "Annual
Rate" (as that term is defined in the Original Note) in equal consecutive
quarterly installments, and principal and interest payments to the Commission in
equal quarterly installments in the amount provided in the Original Note, all as
provided in the Original Note, except for the following modifications:

          (i)    payments of interest accruing from and after the Effective Date
     shall not be due on October 31, January 31, April 30 and July 31 of each
     year (such quarterly dates are hereinafter referred to as the "New
     Quarterly Payment Dates" or individually a "New Quarterly Payment Date");

          (ii)   the last quarterly interest only payment shall be due on the
     New Quarterly Payment Date occurring immediately prior to the date that the
     first payment of principal and interest is due.
<PAGE>

          (iii)  if the first quarterly payment of principal and interest
     required under the Original Note is due on a New Quarterly Payment Date,
     the first quarterly payment of principal and interest shall be due on such
     New Quarterly Payment Date as provided in the Original Note and thereafter,
     Maker shall be required to make its payments of principal and interest in
     equal quarterly installments in the amount provided in the Original Note on
     each succeeding New Quarterly Payment Date; and

          (iv)   if the first quarterly payment of principal and interest
     required under the Original Note is due on a day other than one of the New
     Quarterly Payment Dates, the Original Note is hereby modified to provide
     that the first quarterly payment of principal and interest shall be due on
     the first New Quarterly Payment Date following the date currently provided
     in the Original Note for the first payment of principal and interest and
     thereafter, Maker shall be required to make its payments of principal and
     interest in equal quarterly installments in the amount provided in the
     Original Note on each succeeding New Quarterly Payment Date.

     The Maker and the Commission acknowledge and agree that no modification is
being made to the "Maturity Date" (as that term is defined in the Original Note)
and that the entire "Principal Amount" (as that term is defined in the Original
Note), together with accrued and unpaid interest thereon, and all other
remaining obligations of Maker under the Note, if not sooner paid, shall be due
and payable on the Maturity Date.

     6.   The sixth (6th) paragraph of the Original Note reading "All interest
shall be computed on the basis of a 360-day year for actual days elapsed." is
hereby deleted in its entirety and replaced with the following:

          Interest on the Principal Amount of this Note shall be
          computed at the Annual Rate on the basis of a three hundred
          sixty (360)-day year composed of twelve (12) months of
          thirty (30) days each, except that interest due and payable
          for a period of less than a full quarterly payment period
          shall be calculated by dividing the full quarterly payment
          by the actual number of calendar days in the applicable
          quarterly payment period to create a daily rate that is
          multiplied by the actual number of days elapsed since the
          last day of the previous quarterly payment period.

     7.   If the Suspension Interest Payment and the Deferred Interest Payment
due on the Effective Date are received by the Commission on or before October
29, 1998, together with any applicable late fee, Maker and the Commission agree
that the paragraphs of the Original Note defining when an "Event of Default"
occurs will be modified by deleting in their entirety the provisions beginning
with the phrase "a non-payment by Maker of any Principal or Interest on the due
date. . ." and continuing through ". . ., Maker has not resumed payments of
Interest and Principal in accordance with the terms of this Note; or "and
replace with the following:

          a.   Any non-payment by Maker of any Principal and/or
          Interest on the due date specified hereinabove, and the
          failure to
<PAGE>

          make such payment, together with all applicable "Late Fees"
          (as hereinafter defined) within one hundred eighty (180)
          days after such Principal and/or Interest payment due date;
          or

     8.   The Original Note is hereby amended to provide that in addition to the
Events of Default listed therein, as modified by this First Modification, it
shall be an Event of Default under the Note if either the Suspension Interest
Payment due on the Effective Date or the Deferred Interest Payment due on the
Effective Date is not received by the Commission on or before October 29, 1998.
No additional grace or cure period shall be applicable to such payment. All
other payments of Suspension Interest shall be subject to the same terms and
conditions as the remaining Principal and/or Interest payments under the Note.

     9.   The paragraph of the Original Note which imposes a late fee upon the
occurrence of any Event of Default is hereby modified by deleting in its
entirety the sentence reading "Upon any Event of Default under this Note, Payee
may assess a late fee and/or administrative charge, plus the costs of
collection, litigation, attorneys' fees, and default payment as specified in the
then-applicable orders and regulations of the Commission as amended, and Maker
acknowledges that it is liable and herein expressly promises to pay on demand
such additional costs, expenses, late charges, administrative charges, attorneys
fees, and default payment." and substituting in its place the following:

               Should any payment of Principal and/or Interest
          required under this Note not be paid in full on the due date
          as specified hereinabove, Maker acknowledges that the Payee
          will incur extra expenses for the handling of the delinquent
          payment and servicing the indebtedness evidenced hereby, and
          that the exact amount of theses extra expenses is extremely
          difficult and impractical to ascertain. Therefore, Maker
          shall, in such event, without further notice, and without
          prejudice to the right of the Payee to collect any other
          amounts provided to be paid hereunder or under the Security
          Agreement, or to declare an Event of Default, pay to the
          Commission the "Late Fee" (as hereinafter defined) to
          compensate Payee for expenses incurred in handling
          delinquent payments and the Maker confirms and agrees that
          the Late Fee is a fair approximation of the expenses so
          incurred by the Payee. The "Late Fee" is defined as the
          total, if any, of the "Non-Delinquency Late Fee" and the
          "Grace Period Late Fee" (as hereinafter defined). The "Non-
          Delinquency Late Fee" shall be an amount equal to five
          percent (5.0%) of any Principal and/or Interest payment
          required to be made hereunder and shall be automatically
          assessed if such payment is not made on the original date
          that such Principal and/or Interest Payment is due (without
          the benefit of any notice of grace period). If such
          Principal and/or Interest payment, together with the Non-
          Delinquency Late Fee, is not made on or before the ninetieth
          (90th)-day after the original date that such Principal

<PAGE>

          and/or Interest payment was due, such payment shall
          automatically be subject to a second late fee (the "Grace
          Period Late Fee") equal to ten percent (10.0%) of the amount
          of such past due Principal and/or Interest Payment (without
          the benefit of any notice or grace period) in addition to
          the Non-Delinquency Late Fee.

               In addition to the foregoing, there shall also
          automatically be imposed on Maker, and Maker shall pay to
          the Commission without further notice, and without prejudice
          to the right of the Payee to collect any other amounts
          provided to be paid hereunder or under the Security
          Agreement, or to declare an Event of Default, the
          "Resumption Date Late Fee" (as hereinafter defined ) to
          compensate Payee for expense incurred in handling delinquent
          payment of the Suspension Interest Payment due on the
          Effective Date and/or the Deferred Interest Payment. The
          Maker confirms and agrees that the Resumption Date Late Fee
          is a fair approximation of the expenses so incurred by the
          Payee. The "Resumption Date Late Fee" shall be an amount
          equal to (i) five percent (5.0%) of the Suspension Interest
          Payment due on the Effective Date if such payment is not
          received by the Payee on the Effective Date (without the
          benefit of any notice or grace period), and (ii) five
          percent (5.0%) of the Deferred Interest Payment due on the
          Effective Date if such payment is not received by the Payee
          on the Effective Date (without the benefit of any notice or
          grace period).

Maker and Payee agree that all references in the Original Note to a late fee
shall be deemed to be a reference to the Late Fee and/or the Resumption Date
Late Fee, as applicable.

     10.  Maker represents and warrants that its principal place of business and
chief executive office is located at Marksville, Louisiana.

     11.  All defined terms contained in the Loan Documents shall have the same
meaning as set forth therein except as may otherwise be expressly set forth in
this First Modification. Maker and the Commission covenant and agree that the
reference in the Security Agreement to the "Note" shall be deemed a reference to
the Original Note, as modified by this First Modification.

     12.  This First Modification constitutes the entire agreement regarding the
amendment and modification of the Original Note between Maker and the Commission
and is intended by Maker and the Commission to be a complete, exclusive and
final integration of all prior and contemporaneous agreements and negotiations
of Maker and the Commission concerning the amendment and modification of the
Original Note. There have been no other agreements, covenants, representations
or warranties between the Maker and the Commission regarding the amendment and
modification of the Original Note other than those expressly stated or referred
to
<PAGE>

in this First Modification or any document delivered pursuant hereto.

     13.  This First Modification may be amended or modified only by
written instruments signed by Maker and Commission. If any covenant, condition
or provision of this First Modification is declared by a court of competent
jurisdiction to be invalid and not binding on the Maker and/or the Commission,
such declaration shall in no way affect the validity of the other remaining
covenants, conditions and provisions of this First Modification.

     14.  This First Modification shall bind, inure to the benefit of
and be enforceable by Maker and the Commission, their respective heirs,
beneficiaries, legal representatives, successors and assigns.

     15.  Except as modified by this First Modification, Maker agrees
that the Original Note shall continue in full force and effect without
modification, and the Original Note and all of the other Loan Documents are
hereby expressly approved, ratified, confirmed and reaffirmed by all parties to
this First Modification. Maker hereby acknowledges and agrees that it has no
claims, counterclaims, set-offs, defenses or other causes of action against the
Commission and/or under the Note, Security Agreement or nay of the other Loan
Documents and to the extent that any such set-offs, counterclaims, defenses or
other causes of action may exist, whether known or unknown, they are hereby
waived and forever relinquished by the Maker.

     16.  This First Modification shall be governed and construed in
accordance with the Communications Act of 1934, as amended from time to time,
the then applicable orders and regulations of the Commission and federal law.

     17.  This First Modification may be executed in counterparts, each
of which shall be deemed to be an original and all of which shall collectively
be deemed to constitute a single document.

          IN WITNESS WHEREOF, intending to be legally bound, the undersigned
Maker and the Commission have each executed this First Modification, under seal,
as of the day and year first hereinabove written.

                           [SIGNATURE PAGES FOLLOW]
<PAGE>

                                SIGNATURE PAGE

                             FIRST MODIFICATION OF

                         INSTALLMENT PAYMENT PLAN NOTE


                                   MAKER:
                                   -----


Witness/Attest:                    WIRELESS 2000, INC.
                                   A, Louisiana Corporation
/s/ Donna Mayeux
- --------------------               By:  /s/ Joan S. Ducote
                                        ---------------------
                                   Name:  Joan S. Ducote

                                   Title: President

                                   Date:  July 21, 1998
<PAGE>

                                SIGNATURE PAGE

                             FIRST MODIFICATION OF

                         INSTALLMENT PAYMENT PLAN NOTE



                                COMMISSION:
                                ----------

Witness/Attest:                 FEDERAL COMMUNICATIONS COMMISSION

/s/ Rita Cookmap
- -------------------             By: /s/ E. R. Kazan
                                    ---------------------------
                                Name:  E.R. Kazan
                                      -------------------------
                                Its:   Authorized Signatory for the Wireless
                                Telecommunications Bureau, Federal
                                Communications Commission
<PAGE>

                      United States of America
                    Federal Communications Commission

                      RADIO STATION AUTHORIZATION

                    Commercial Mobile Radio Services
                 Personal Communications Service - Broadband


[LOGO]
                                                     Call Sign: KNLF393
                                                     Market:  B304 MONROE, LA

WIRELESS 2000 INC
WIRELESS 2000 LLC                                    Channel Block: C
208 N. WASHINGTON
MARKSVILLE, LA 71351                                 File Number:00205-CW-L-96



- --------------------------------------------------------------------------------
The licensee hereof is authorized, for the period indicated, to construct and
operate radio transmitting facilities in accordance with the terms and
conditions hereinafter described. This authorization is subject to the
provisions of the Communications Act of 1934, as amended, subsequent Acts of
Congress, international treaties and agreements to which the United States is a
signatory and all pertinent rules and regulations of the Federal Communications
Commission contained in the Title 47 of the U.S. Code of Federal Regulations.
- --------------------------------------------------------------------------------

     Initial Grant Date.......................... September 17, 1996
     Five-year Build Out Date.................... September 17, 2001
     Expiration Date............................. September 17, 2006

- --------------------------------------------------------------------------------
CONDITIONS
- ----------
Pursuant to Section 309(h) of the Communications Act of 1934, as amended, (47
U.S.C. (S). 309(b)), this license is subject to the following conditions: This
license does not vest in the licensee any right to operate a station nor any
right in the use of frequencies beyond the term thereof nor in any other manner
than authorized herein. Neither this license nor the right granted thereunder
shall be assigned or otherwise transferred in violation of the Communications
Act of 1934, as amended (47 U.S.C. (S). 151, et seq.). This license is subject
in terms to the right of use or control conferred by Section 706 of the
Communications Act of 1934, as amended (47 U.S.C. (S). 606).

Conditions continued on Page 2.
- --------------------------------------------------------------------------------

WAIVERS :
- -------
No waivers associated with this authorization.


- --------------------------------------------------------------------------------
Issue Date: September 17, 1996                                       Page 1 of 2
FCC Form 463a.
<PAGE>

KNLF393                       WIRELESS 2000, INC.                  00205-CW-L-96


CONDITIONS:


This authorization is subject to the condition that, in the event that systems
using the same frequencies as granted herein are authorized in an adjacent
foreign territory (Canada/United States), future coordination of any base
station transmitters within 72 km (45 miles) of the United States/Canada border
shall be required to eliminate any harmful interference to operations in the
adjacent foreign territory and to ensure continuance of equal access to the
frequencies by both countries.

This authorization is conditioned upon the full and timely payment of all monies
due pursuant to Sections 1.2110 and 24.711 of the Commission's Rules and the
terms of the Commission's installment plan as set forth in the Note and Security
Agreement executed by the licensee. Failure to comply with this condition will
result in the automatic cancellation of this authorization.




Issue Date: September 17, 1996                                       Page 2 of 2
FCC Form 463a
<PAGE>

                         Installment Payment Plan Note
  (Broadband Personal Communications Service, C Block): Auction Event No. 5)


US $5,932,575.00
Washington, D.C.                                              September 17, 1996

License No.: PBB304C
             -------

     FOR VALUE RECEIVED, the undersigned, Wireless 2000, Inc., a CORPORATION
("Maker"), promises to pay to the order of the FEDERAL COMMUNICATIONS
COMMISSION, an independent regulatory agency of the United States ("Payee" or
"Commission"), the principal sum of 5,932,575.00 DOLLARS ("Principal Amount"),
together with accrued interest, computed at the annual rate of seven percent
(7.00%) per annum, ("Annual Rate") on the unpaid Principal Amount hereof, from
the date of this Note until the date the entire Principal Amount has been paid
in full.

     Interest and principal shall be payable as set forth below and in
accordance with Schedule A attached hereto and made a part hereof:

     Interest only, at the Annual Rate from the date hereof until the last day
of the month ninety (90) days hence, shall be due and payable on December 31,
1996 in the amount of $119,464.18. Commencing December 31, 1996, Maker shall pay
interest only at the Annual Rate, in equal consecutive quarterly installments of
$103,820.06, due on the last day of the month and every ninety (90) days
thereafter from December 31, 1996 through September 30, 2002.

     Commencing December 31, 2002, Maker shall pay principal and interest in
equal quarterly installments of $428,329.40, due on the last day of each month
ninety (90) days hence through and including June 30, 2006.

     The entire unpaid Principal Amount, together with accrued and unpaid
interest thereon, and all remaining obligations of Maker hereunder, shall be due
and payable on September 17, 2006 ("Maturity Date").

     All interest shall be computed on the basis of a 360-day year for actual
days elapsed.

     All payments to be made hereunder, of principal, interest, costs, expenses,
or other sums due hereunder, shall be made to the holder of this Note in lawful
money of the United States of America which at the time of payment shall be
legal tender for the payment of public and private debts, free and clear and
without reduction by reason of any present or future income, stamp or other
taxes, levies, imposts, deductions, charges, compulsory loans or withholdings
whatsoever,

                                      -2-
<PAGE>

including interest thereon or penalties with respect thereto, if any imposed,
assessed, levied or collected by any political subdivision or taxing authority
thereof or therein, on or in respect of this Note or the obligations it
evidences. All payments shall be made during normal business hours at the
Commission's designated lockbox location as set forth from time to time in the
Commission's then-applicable orders and regulations and/or public notices.

     This Note is secured by, and entitled to the benefits of, a Security
Agreement (the "Security Agreement") of even date between Maker and Payee. All
the terms, covenants, conditions and agreements contained in the Security
Agreement are hereby incorporated herein and made part of this Note to the same
extent and effect as if fully set forth herein. It is expressly understood by
Maker that all of the terms of the Security Agreement apply to this Note and
that reference in the Security Agreement to "this Agreement" includes both the
Security Agreement and this Note.

     IT IS HEREBY EXPRESSLY AGREED THAT TIME IS OF THE ESSENCE FOR THE
PERFORMANCE OF ALL TERMS AND CONDITIONS UNDER THIS NOTE AND THE SECURITY
AGREEMENT.

     A default under this Note ("Event of Default") shall occur upon any or all
of the following:

     a.   non-payment by Maker of any Principal or Interest on the due date as
specified hereinabove if the Maker remains delinquent for more than 90 days and

          (1)  Maker has not submitted a request, in writing, for a grace period
               or extension of payments, if any such grace period or extension
               of payments is provided for in the then-applicable orders and
               regulations of the Commission; or

          (2)  Maker has submitted a request, in writing, for a grace period or
               extension of payments, if any such grace period or extension of
               payments is provided for in the then-applicable orders and
               regulations of the Commission, and following the expiration of
               the grant of such grace period or extension or upon denial of
               such a request for a grace period or extension, Maker has not
               resumed payments of Interest and Principal in accordance with the
               terms of this Note;

or;

     b.   failure by Maker to comply with any other condition for holding the
above referenced license (as defined in the Security Agreement) as set forth in
the license or in the Communications Act of 1934, as amended, or the then-
applicable orders and regulations of the Commission; or

                                      -3-
<PAGE>

     c.   violation by Maker of any other covenant or term of this Note or the
Security Agreement.

Upon any Event of Default under this Note, Payee may assess a late fee and/or
administrative charge, plus the costs of collection, litigation, attorneys'
fees, and default payment as specified in the then-applicable orders and
regulations of the Commission, as amended, and Maker acknowledges that it is
liable and herein expressly promises to pay on demand such additional costs,
expenses, late charges, administrative charges, attorneys fees, and default
payment. Upon a default under this Note, the unpaid Principal Amount, plus all
unpaid interest accrued thereon, together with any late fee and/or
administrative charge, plus the costs of collection, litigation, attorneys'
fees, and default payment as specified in the then-applicable orders and
regulations of the Commission, as amended, shall become immediately due and
payable. The Maker hereby acknowledges that the Commission has issued Maker the
above referenced license pursuant to the Communications Act of 1934, as amended,
that is conditioned upon full and timely payment of financial obligations under
the Commission's installment payment plan, as set forth in the then-applicable
orders and regulations of the Commission, as amended, and that the sanctions and
enforcement authority of the Commission shall remain applicable in the event of
a failure to comply with the terms and conditions of the license, regardless of
the enforceability of this Note or the Security Agreement.

     No delay or omission on the part of Payee in exercising any right under
this Note, the Security Agreement, or any other instrument securing this Note,
shall operate as a waiver of such right or of any other right of Payee, nor
shall any waiver by Payee of any such right or rights on any one occasion be
deemed a bar to or waiver of the same right or rights on any future occasion.

     The Maker is liable for all costs of collection or enforcement of the
Payee's rights under this Note or under the Security Agreement or under any
other instrument now or hereafter executed by Maker in favor of Payee which in
any manner evidences or constitutes additional security for this Note, including
reasonable attorneys' fees, whether suit is brought or not, and all such costs
shall be paid by the Maker on demand, and whether or not such collection or
enforcement occurs in any bankruptcy, reorganization, receivership or other
proceedings involving creditors' rights or involving a claim under this Note or
any of the other loan documents.

     Maker, all endorsers and guarantors hereof and any other party who may
become liable for all or any part of the obligation evidenced hereby, waive
presentment for payment, notice or dishonor, protest and notice of protest,
notice of nonpayment and any and all lack of diligence or delays in collection
or enforcement of this Note.

     Maker may prepay all or any part of the Principal Amount without premium or
penalty upon ten (10) days' prior written notice to Payee, given in the manner
provided in the Security Agreement.

                                      -4-
<PAGE>

     Partial prepayments shall not postpone or reduce regular payments to be
made hereunder. All such prepayments shall be applicable first to the payment of
late charges, if any, costs and expenses, and administrative penalties due
hereunder, then to accrued and unpaid interest, then to that portion of the
unpaid Principal Amount due on the Maturity Date and then, if applicable, to any
unpaid installments of principal in the inverse order of installment maturities.
The Payee may require that any partial prepayments be made on the dates
installments of principal and interest are due hereunder.

     Anything to the contrary notwithstanding, Payee shall not charge, take or
receive, and Maker shall not be obligated to pay to Payee, any amounts
constituting interest on the Principal Amount in excess of the maximum rate
permitted by applicable law. If by reason of the acceleration of the unpaid
Principal Amount or otherwise, interest in excess of the highest legal contract
rate permitted by applicable law shall at any time be paid, any such excess
shall constitute and be treated as a payment of outstanding principal hereunder
and shall operate to reduce such outstanding Principal Amount.

     ANY LEGAL ACTION OR PROCEEDING RELATING TO THIS NOTE, THE SECURITY
AGREEMENT, OR OTHER DOCUMENTS EVIDENCING OR SECURING THE DEBT TRANSACTION
EVIDENCED HEREBY MAY ONLY BE BROUGHT IN THE UNITED STATES DISTRICT COURT FOR THE
DISTRICT OF COLUMBIA, AND, BY EXECUTION AND DELIVERY OF THIS NOTE AND SECURITY
AGREEMENT, THE MAKER HEREBY ACCEPTS FOR ITSELF AND IN RESPECT OF ITS PROPERTY
GENERALLY AND UNCONDITIONALLY, THE JURISDICTION OF THE AFORESAID COURT. THE
PARTIES HERETO HEREBY IRREVOCABLY WAIVE ANY OBJECTION, INCLUDING, WITHOUT
LIMITATION, ANY OBJECTION TO THE LAYING OF VENUE OR BASED ON THE GROUNDS OF
FORUM NON CONVENIENS, WHICH ANY OF THEM MAY NOW OR HEREAFTER HAVE TO THE
BRINGING OF ANY SUCH ACTION OR PROCEEDING IN THE DISTRICT OF COLUMBIA.

     THE MAKER IRREVOCABLY CONSENTS TO THE SERVICE OF PROCESS OF THE
AFOREMENTIONED COURT IN ANY SUCH ACTION OR PROCEEDING BY THE MAILING OF A COPY
THEREOF BY CERTIFIED MAIL, RETURN RECEIPT REQUESTED, POSTAGE PREPAID, TO THE
MAKER AT ITS ADDRESS PROVIDED HEREIN. SUCH SERVICE SHALL BE DEEMED TO HAVE
OCCURRED ON THE THIRD DAY AFTER SUCH MAILING. NOTHING CONTAINED HEREIN SHALL
AFFECT THE RIGHT OF PAYEE TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY LAW
OR COMMENCE LEGAL PROCEEDINGS OR OTHERWISE PROCEED AGAINST THE MAKER IN ANY
OTHER JURISDICTION.

     EACH OF THE PARTIES HERETO HEREBY KNOWINGLY, WILLINGLY, VOLUNTARILY,
UNCONDITIONALLY, IRREVOCABLY AND INTENTIONALLY

                                      -5-
<PAGE>

FOREVER WAIVES ANY RIGHT IT MAY HAVE TO TRIAL BY JURY IN RESPECT OF ANY
LITIGATION BASED ON, OR ARISING OUT OF, UNDER OR IN CONNECTION WITH THIS NOTE,
THE SECURITY AGREEMENT, OR OTHER DOCUMENTS EVIDENCING OR SECURING THE DEBT
TRANSACTION EVIDENCED HEREBY, ANY COURSE OF CONDUCT, COURSE OF DEALING,
STATEMENTS (VERBAL OR WRITTEN) OR ACTION OF ANY PERSON OR ANY EXERCISE BY ANY
PARTY OF THEIR RESPECTIVE RIGHTS UNDER THIS TRANSACTION, DOCUMENT OR ANY RELATED
DOCUMENT OR IN ANY WAY RELATING TO THE COLLATERAL (INCLUDING, WITHOUT
LIMITATION, ANY ACTION TO RESCIND OR CANCEL THIS TRANSACTION OR ANY CLAIMS OR
DEFENSES ASSERTING THAT THIS TRANSACTION, IN WHOLE OR IN PART, WAS FRAUDULENTLY
INDUCED OR IS OTHERWISE VOID OR VOIDABLE). MAKER REPRESENTS THAT NO ORAL OR
WRITTEN STATEMENTS HAVE BEEN MADE BY ANY PARTY TO INCLUDE THIS SUBMISSION OR
JURISDICTION AND WAIVER OF TRAIL BY JURY OR IN ANY WAY TO MODIFY OR NULLIFY ITS
STATED EFFECT. MAKER FURTHER REPRESENTS THAT IT HAS BEEN REPRESENTED BY
INDEPENDENT COUNSEL, SELECTED BY ITS OWN FREE WILL, IN SIGNING THIS NOTE AND IN
THE MAKING OF THIS WAIVER AND THAT IT HAS HAD THE OPPORTUNITY TO DISCUSS THIS
WAIVER WITH SUCH COUNSEL. THIS PROVISION IS A MATERIAL INDUCEMENT FOR PAYEE TO
ENTER INTO THIS TRANSACTION AND THE VARIOUS DOCUMENTS RELATED THERETO.

     Maker acknowledges that this Note and Security Agreement (any attachments
affixed thereto by the Commission with the permission and knowledge of the
Maker/Debtor), along with the then-current applicable Commission orders and
regulations and the Communications Act of 1934, as amended, set forth the entire
agreement, written and oral, of the parties, and all inconsistent prior
statements, understandings, notices, representations and agreements between the
parties, oral or written, are superseded by and merged in this Note, the
Security Agreement or other documents evidencing or securing the debt
transaction evidenced hereby. Except as otherwise expressly provided herein, all
of Payee's representations, warranties, covenants and agreements in this Note
and Security Agreement shall merge in the documents and agreements executed by
the Maker and shall not survive said execution.

     If any provision or part of this Note and/or the Security Agreement shall
for any reason be held or deemed to be invalid, illegal, or unenforceable in any
respect, such invalidity, illegality or unenforceability shall not affect any
other provision of this Note and this Note shall be construed as if such
invalid, illegal or unenforceable provision had never been contained herein and
the remaining provisions of this Note shall remain in full force and effect. The
enforceability of the Note and/or the Security Agreement do not alter the rights
and obligations of the Maker and Payee under the Communications Act of 1934, as
amended, or under the then-applicable orders and regulations of the Commission,
as amended.

         Any notice demand or request hereunder shall be given in the manner set
forth in the

                                      -6-
<PAGE>

Security Agreement.

     This Note shall be governed by and construed in accordance with the
Communications Act of 1934, as amended, the then-applicable orders and
regulations of the Commission, and federal law. Nothing in this Note shall be
deemed to modify any then-applicable orders and regulations of the Commission,
and nothing in this Note shall be deemed to release the Maker from compliance
therewith. This Note may not be changed, modified, waived, terminated or
discharged orally, but only by an agreement in writing executed by the party
against whom enforcement of any such change, modification, waiver, termination,
or discharge is sought.

     Maker represents and warrants that any statements made by or on behalf of
Maker in connection with this Note: (i) are true and accurate in all material
respects; and (ii) do not omit any material facts or information that would make
such statement misleading in the context of Payee's evaluation of the note, and
acknowledges and agrees that Payee is entitled to and his relied on such
statements in agreeing to the Note.

     Payee shall have the right at any time to assign, endorse, pledge, convey
or otherwise transfer this Note and all of the other loan documents to any
party. From and after the date of such assignment, endorsement, pledge,
conveyance or other transfer, such transferee shall be entitled to exercise any
and all rights and remedies of Payee hereunder. Maker shall not assign, convey
or otherwise transfer its rights and obligations hereunder without the prior
written consent of the Commission.


Date:  11/21/96                              WIRELESS 2000, INC.
                                                      [NAME OF MAKER]

                                             By:  /s/ Joan S. Ducote
                                                 -----------------------------
                                             Its:  President
                                                  ----------------------------

                                      -7-
<PAGE>

                              SECURITY AGREEMENT
  (Broadband Personal Communications Service, C Block): Auction Event No. 5)

License No. PBB304C
            -------

     This SECURITY AGREEMENT DATED September 17, 1996, ("Agreement") between
Wireless 2000, Inc., a CORPORATION ("Debtor") and the FEDERAL COMMUNICATIONS
COMMISSION, an independent regulatory agency of the United States ("Commission"
or "Secured Party")

                                  WITNESSETH


     WHEREAS, Debtor has submitted the highest accepted bid for license number
PBB304C in the Broadband Personal Communications Service C Block auction
(hereinafter the "License") conducted by the Commission to assign such licenses;

     WHEREAS, the Commission has duly determined to grant the License to Debtor,
subject to the terms and conditions set forth in the orders and regulations of
the Commission applicable to such licenses, and the Communications Act of 1934,
as amended;

     WHEREAS, Debtor wishes to pay its auction price for the License by
installments through an Installment Payment Plan as provided by 47 C.F.R. (SS)
24.711, 1.2110 (hereinafter the "Installment Payment Plan") and undertakes to
hold the License under the terms and conditions set forth in the Commission's
orders and regulations, as amended, applicable to such licenses, and the
Communications Act of 1934, as amended and the terms and conditions of this
Agreement;

     WHEREAS, the Commission has agreed to permit the Debtor to make payment
of the auction price for the License through an Installment Payment Plan; and

     WHEREAS, as a condition to such agreement, Debtor has agreed to execute
the Installment Payment Plan Note of even date ("Note") and to enter into this
Agreement and make the pledge and assignment of collateral contemplated herein.

     NOW, THEREFORE, in consideration of the premises, the mutual agreements
contained herein and for other good and valuable consideration, the receipt,
adequacy, and sufficiency of which is hereby acknowledged, and in order to
induce the Commission to permit Debtor to pay the auction price for the License
through the Installment Payment Plan, Debtor hereby agrees with the Commission
as follows:

                                      -8-
<PAGE>

     1.   Pledge and Assignment of Collateral of Obligations Under Note.
          -------------------------------------------------------------
Debtor hereby pledges, assigns, hypothecates, delivers, and sets over to the
Commission and grants to the Commission a first lien on and continuing security
interest in all of the Debtor's rights and interest in the License and all
proceeds, profits and products of any sale of or other disposition thereof
(collectively the "Collateral"), all as collateral security for the prompt and
complete payment when due (whether in accordance with the schedule of payments,
at the stated maturity, by acceleration, or otherwise) of the unpaid principal
and interest due, and such other additional costs, expenses, late charges,
administrative charges, attorneys fees, and default payments assessable under
the terms of the Note (all collectively "Obligations"). It is expressly
understood by Debtor that all of the terms of the Note apply to this Agreement
and that reference herein to "this Agreement" includes both the Security
Agreement herein and the Note. For purposes of interpreting the terms used in
this Agreement shall have the meaning ascribed to them in the Uniform Commercial
Code (Official Text and Comments, American Law Institute).

     2.   Interest of Commission. It is understood and acknowledged by Debtor
          ----------------------
that pursuant to Section 301 of the Communications Act of 1934, as amended, the
Commission is charged with the regulatory mandate to maintain control over all
channels of radio transmission (the "Spectrum"), and to provide licenses for the
use of such radio channels, but not ownership thereof. Debtor understands and
acknowledges that it holds a mere conditional license to use the Spectrum with
no ownership interest in the Collateral (or any underlying right to use the
Spectrum), or any power to assign the License without the prior Approval of the
Commission pursuant to Section 310(d) of the Communications Act of 1934, as
amended. Debtor further understands and acknowledges that it is giving a
security interest to the Commission in the Collateral only to assist the
Commission in protecting its ability to enforce the Commission's regulations
which condition holding the license in compliance with all then-applicable
orders and regulations of the Commission, including, but not limited to, full
and timely payment of all payments under the Installment Payment Plan. To that
end, and not in derogation of any of the Commission's regulatory authority over
the License, Debtor hereby acknowledges that the Commission has a first security
interest in the Collateral, and Debtor shall not dispute such first security
interest, or the Commission's rights as a secured party hereunder, in any legal
or equitable proceeding in which Debtor, or any assignee or trustee of the
estate of Debtor in bankruptcy, is a party.

     3.   Compliance with Commission Orders and Regulations. Nothing in this
          -------------------------------------------------
Agreement shall be deemed to modify any then-applicable orders and regulations
of the Commission, and nothing in this Agreement shall be deemed to release
Debtor from compliance therewith.

     4.   Representations and Warranties of Debtor. Debtor represents and
          ----------------------------------------
warrants to the Commission as follows:

     (a)  It has full power, authority and legal right to execute, deliver
and perform this Agreement, the Note, and any other documents delivered in
connection with the Note, this

                                      -9-
<PAGE>

Agreement and the transactions contemplated therein to make the debt transaction
evidenced by the Note, and to pledge the Collateral pursuant to this Agreement.

     (b)  It is a duly organized CORPORATION existing in good standing under
the laws of LOUISIANA and is duly qualified to do business wherever necessary to
carry on its present operations. Its principal place of business and chief
executive office are located at 219 NORTH WASHINGTON STREET, MARKSVILLE, LA
71351.

     (c)  The representative of Debtor purporting to act on behalf of Debtor
in executing this Agreement, the Note, and any other documents delivered in
connection with the Note, this Agreement and the transactions contemplated
therein, is duly authorized by Debtor to take all such acts and to execute all
such documents.

     (d)  No security agreements have been executed and delivered, and no
financing statements have been filed in any jurisdiction, granting or purporting
to grant a security interest in the Collateral to any secured party except to
the Commission.

     (e)  No consent of any other party and no consent, license, approval or
authorization of, exemption by, or registration or declaration with, any
governmental instrumentality, domestic or foreign other than the Commission, is
required to be obtained in connection with the execution, delivery or
performance of this Agreement, the Note or any other document executed and
delivered in connection with the delivery of the Note or this Agreement.

     (f)  The execution, delivery and performance of this Agreement and the
Note, does not and will not violate any provision of any applicable law or
regulation or any order, judgment, writ, award or decree of any court,
arbitrator, governmental instrumentality, domestic or foreign, or of any
indenture, contract, agreement or other undertaking to which Debtor is a party
or which purports to be binding upon Debtor or upon any of Debtor's assets, and
will not result in the creation or imposition of any lien, charge or encumbrance
on or security interest in any of the assets of Debtor, except as contemplated
by this Agreement.

     (g)  All right and interest of any kind in and to the Collateral is held
by Debtor or the Commission and by no other party, and the Collateral is free
from any lien, security interest, encumbrance or adverse claim of any kind
whatsoever thereon. Debtor will not permit any financing statement to be filed
with respect to the Collateral or any portion thereof or interest therein except
in favor of Secured Party. Debtor will notify Secured Party of, and will defend
the Collateral against, all claims and demands of all persons at any time
claiming the same or any interest therein.

     5.   Covenants of Debtor. Debtor hereby covenants and agrees as follows:
          -------------------

     (a)  That it will defend the Commission's right, title and security
interest in and to the Collateral against the claims and demands of all persons
whomsoever.

                                     -10-
<PAGE>

     (b)  That it will execute all financing statements and other instruments
or documents related to the perfection of the Commission's security interest,
including but not limited to any renewal financing statements or instruments as
required to maintain the Commission's security interest, or as otherwise
reasonably requested by the Commission, and to file and pay the cost of filing
any such instruments or documents as required under this paragraph in whichever
public office deemed advisable by the Commission.

     (c)  That it will not make any indenture, contract, agreement or other
undertaking to which Debtor is a party or which purports to be binding upon
Debtor, or upon any of Debtor's assets, that would result in the creation or
imposition of any lien, charge or encumbrance on or security interest in any of
the assets of Debtor that would be inconsistent with its pledge and assignment
of the Collateral hereunder, except as contemplated by this Agreement. Except
for the liens and encumbrances created hereby, Debtor will keep the Collateral
free and clear of any lien, security interest or encumbrance.

     (d)  That it will pay all costs and expenses, including reasonable
attorneys' fees, of the Commission incurred in connection with the enforcement
of this Agreement and any and all liability incurred by the Commission resulting
from any act or omission of Debtor with respect to the Collateral and this
Agreement.

     (e)  Debtor will execute, alone or with Secured Party, any document,
will procure any document and do all other acts and pay all connected costs, in
a timely and proper manner, which from the character or use of the Collateral
may be reasonably necessary to protect the Collateral against the rights, claims
or interests of third persons, and will otherwise preserve the Collateral as
security hereunder. The specific undertakings required of Debtor in this
Agreement shall not be construed to exclude the aforementioned general
obligation.

     6.   Power of Attorney. Debtor hereby irrevocably constitutes and
          -----------------
appoints the Commission and any officer or agent thereof, with full power of
substitution, as its true and lawful attorney-in-fact with full irrevocable
power and authority in the place and stead of Debtor and in the name of Debtor
or in its own name, from time to time in the Commission's discretion, for the
purpose of carrying out the terms of this Agreement and, to the extent permitted
by applicable law, to take any and all appropriate actions and to execute any
and all documents and instruments which may be necessary or desirable to
accomplish the purposes of this Agreement. Such appointment is a power coupled
with an interest until all Obligations have been paid in full by Debtor.

     7.   Event of Default. Debtor shall be in default under this Agreement if
          ----------------
an Event of Default (as defined in the Note) has occurred.

     8.   Remedies. If an Event of Default shall occur, the Commission shall
          --------
thereafter have the following rights and remedies (to the extent permitted by
applicable law) in addition to the rights and remedies relating to the Note, all
such remedies being cumulative, not exclusive, and

                                     -11-
<PAGE>

enforceable alternatively, successively or concurrently at such time or times as
Commission deems expedient:

     (a)  the License shall be automatically canceled pursuant to 47 C.F.R.
(S) 1.2110;

     (b)  all Obligations; secured hereunder shall become immediately due and
payable without presentment, demand, protest, further notice, or other
requirements of any kind;

     (c)  the Commission may demand, sue for, and collect the outstanding
balance of the unpaid Obligations, and make any compromise, or settlement the
Commission deems suitable with respect to any Collateral which may be held by it
hereunder;

     (d)  Debtor hereby acknowledges the Commission's authority, pursuant to
the Communications Act of 1934, as amended, and the Commission's orders and
regulations then-applicable to such licenses, to conduct another public auction
or assign the License in the event that the Commission rescinds, cancels, or
revokes the License for any default under this Agreement or any other violation
of the terms and conditions of the License. The Undersigned hereby waives all
notices prior to the conduct of said public auction or assignment by the
Commission or its agents. Debtor further acknowledges that in the event that the
Commission rescinds, cancels, or revokes the License for any default under this
Agreement or any other violation of the terms and conditions of the License,
Debtor has no right or interest in any moneys or evidence of indebtedness given
to the Commission by a subsequent licensee of the Spectrum and that all such
moneys or evidence of indebtedness are, and shall remain, the full property of
the federal Treasury, pursuant to Section 309(j) of the Communications Act of
1934, as amended, and then-applicable Commission orders and regulations.

     (e)  In addition to other remedies hereunder, Debtor shall remain liable,
and obligated to pay on demand, all costs of collection and reasonable
attorneys' fees and expenses incurred or paid by the Commission in enforcing
this Agreement including, without limitation, all administrative fees and
expenses of the Commission in attempting to collect the Obligations or to
enforce this Agreement, or the prosecution or defense of any action or
proceeding related to the subject matter of this Agreement, and all payments
assessed by the Commission in the event of default as specified in Commission
orders and regulations applicable to such licenses.

     (f)  Debtor hereby acknowledges that the Commission has no adequate remedy
at law with respect to a breach of any covenant contained in this Agreement and,
as a consequence, agrees that each and every covenant contained in this
Agreement shall be specifically enforceable against Debtor, and Debtor hereby
waives and agrees not to assert any defense against an action for specific
performance of such covenants.

     (g)  Secured Party may exercise any and all of the rights and remedies
conferred upon Secured Party by this Agreement, any other loan documents, or by
applicable law, either concurrently or in such order as Secured Party may
determine.

                                     -12-
<PAGE>

     (h)    Secured Party may make such payments and do such acts as Secured
Party may deem necessary to protect its secured interest in the Collateral.

     (i)    the Commission may exercise any remedies of a Secured Party under
the Uniform Commercial Code (Official Text and Comments, American Law
Institute), or any other applicable law.

     (j)    Secured Party shall have the right to enforce one or more remedies
hereunder or under the Note, successively or concurrently, and such action shall
not operate to estop or prevent Secured Party from pursuing any further remedy
which it may have.

     9.   Severability. Any provision of this Agreement that is prohibited or
          ------------
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the
remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction.

     10.  No Waiver; Cumulative Remedies. None of the terms or provisions of
          ------------------------------
this Agreement may be waived, altered, modified or amended except by an
instrument in writing, duly executed by the Commission. The Commission shall not
by any act, delay, omission or otherwise be deemed to have waived any of its
rights or remedies under this Agreement, and no waiver shall be valid unless in
writing, signed by the Commission, and then only to the extent therein set
forth. A waiver by the Commission of any right or remedy under this Agreement on
any one occasion shall not be construed as a bar to any right or remedy which
the Commission would otherwise have on any future occasion. No failure to
exercise nor any delay in exercising on the part of the Commission, any right,
power or privilege under this Agreement shall operate as a waiver thereof; nor
shall any single or partial exercise of any right, power or privilege under this
Agreement preclude any other or further exercise thereof or the exercise of any
other right power or privilege. The rights and remedies provided in this
Agreement are cumulative and may be exercised singly or concurrently and are not
exclusive of any rights or remedies provided by law.

     11.  Compliance With Other Applicable Orders and Regulations. Debtor
          -------------------------------------------------------
recognizes that its continued retention of the License, and rights to operate as
a Commission licensee thereunder, are conditioned upon compliance with all
Commission orders and regulations applicable to the License and the
Communications Act of 1934, as amended. Debtor further recognizes that full and
timely payment as set forth in the Note does not otherwise relieve it of its
obligations otherwise to comply with the then-applicable orders and regulations
of the Commission, and the Communications Act of 1934, as amended.

     12.  Applicable Law. This Agreement shall be governed by and construed
          --------------
in accordance with Communications Act of 1934, as amended, then-applicable
Commission orders and regulations, as amended, and federal law.

                                     -13-
<PAGE>

     13.  Successors, Assigns, Designated Agents. Subject to the provisions
          --------------------------------------
of Paragraph 2 of this Agreement regarding the restriction upon Debtor's ability
to assign the License, this Agreement shall be binding upon Debtor, its
successors and assigns and shall inure to the benefit of the Commission, and its
successors and assigns. The Commission may designate agents other than the
Commission to act on its behalf with respect to any and all rights and remedies
of the Commission under this Agreement or the Note, and such designee shall have
all of the rights, powers and remedies available to the Commission within the
scope of its designation. Nothing herein, however, shall be construed as
granting Debtor any right to sell or assign the License.

     14.  Singular and Plural. Wherever used, the singular number shall include
          -------------------
the plural, the plural shall include the singular, and the use of any gender
shall be applicable to all genders.

     15.  Financing Statements. To the extent permitted by applicable law,
          --------------------
Debtor authorizes the Commission to sign and file financing statements at any
time with respect to any of the Collateral without the signature of Debtor.
Debtor will, however, at the same time and from time to time, execute such
financing statements, agreements and other instruments and perform such acts as
Commission may request in order to establish and maintain a validly perfected
first priority security interest in the Collateral. All reasonable costs of
filing and recording will be paid by Debtor.

     16.  Indemnification. Debtor hereby agrees to defend, indemnify and hold
          ---------------
harmless Secured Party and its employees, officers and agents, from and against
any and all liabilities, claims and obligations which may be incurred, asserted
or imposed upon them or any of them as a result of or in connection with any
use, operation, lease or consumption of any of the Collateral or as a result of
Secured Party's seeking to obtain performance of any of the obligations due with
respect to the Collateral.

     17.  Notices. All notices, requests and demands hereunder shall be in
          -------
writing and shall be deemed to have been duly given, made or served on the
earliest of (i) three (3) business days after the date mailed if sent by
first-class U.S. mail, postage prepaid, (ii) actual delivery thereof if
delivered by hand to the party to be notified, (iii) receipt thereof if sent by
express mail or other overnight courier service, or (iv) transmission to the
telecopier number listed below for the party to be notified if sent within
normal business hours or, otherwise, on the next business day thereafter. In
each case such notification with respect to the Debtor and the Commission shall
be addressed as set forth below or as may be hereafter designed by the
respective parties hereto.


As to Debtor:              WIRELESS 2000, INC.
- ------------
                           P. 0. BOX 337
                           219 NORTH WASHINGTON STREET
                           MARKSVILLE, LA 71351
                           ATTN: JOAN S. DUCOTE, PRESIDENT

                                     -14-
<PAGE>

As to the
- ---------
Commission:                U.S. DEPARTMENT OF THE TREASURY
- ----------                 P. 0. BOX 44093
                           WASHINGTON, D. C. 20026-4093
                           ATTN: FCC-FMS/DEBT MANAGEMENT SERVICE



     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed and delivered as of the day and year first above written.

     DEBTOR:
     ------

                           WIRELESS 2000, INC.

     Date: 11/21/96        By: /s/ Joan S. Ducote
                               ------------------
                           Its:    PRESIDENT


                       FEDERAL COMMUNICATIONS COMMISSION
                       ---------------------------------

     Date: 12/19/96        By: /s/ [signature illegible]
                               -------------------------
                           Its:  Associate Managing Director
                                 for Operations (or designee)

                                     -15-
<PAGE>

License No.:  PBB304C
Modified License No.:  PBB304C1

                             FIRST MODIFICATION OF
                             ---------------------
                         INSTALLMENT PAYMENT PLAN NOTE
                         -----------------------------
                           FOR BROADBAND PCS C BLOCK
                           -------------------------

     THIS FIRST MODIFICATION OF INSTALLMENT PAYMENT PLAN NOTE ("First
Modification") is executed on the 21st day of July, 1998, and is intended to be
effective for all purposes as of the 31st day of July, 1998 ("Effective Date"),
by and between: (i) WIRELESS 2000, INC., A Louisiana Corporation ("Maker"); and
(ii) FEDERAL COMMUNICATIONS COMMISSION, an independent regulatory agency of the
United States ("Payee" or "Commission").

                             W I T N E S S E T H:
                             - - - - - - - - - -

RECITALS:
- --------

     R-1.  Reference is made to that certain Installment Payment Plan Note made
by Maker, payable to the order of the Commission, in the original principal
amount of $5,932,575.00 ("Original Note"). The Original Note is secured by,
amongst other things (i) that certain Security Agreement by and between the
Maker and the Commission ("Security Agreement"); and (ii) those certain
Financing Statements related thereto (collectively, "Financing Statements"). The
Original Note, Security Agreement, Financing Statements and all other documents
evidencing, governing or securing the Original Note, together with any and all
amendments, modifications or supplements thereto, are hereinafter collectively
referred to as the "Loan Documents". All of the terms, conditions and provisions
of the Loan Documents are hereby incorporated herein and made a part hereof in
their entireties by this reference.

     R-2.  The Security Agreement and Financing Statements created a first lien
security interest in the "License" and the "Collateral" (as those terms are
defined in the Security Agreement).

     R-3.  Pursuant to that certain Public Notice, DA 97-649 (rel. March 31,
1997) ("Suspension Order"), the Commission suspended the deadline for payment of
installment payments required to be made under the Original Note. Pursuant to
that certain Second Report and Order and Further Notice of Proposed Rule Making
adopted September 25, 1997 and released October 16, 1997 ("Second Report and
Order"), the Commission rescinded the Suspension Order and ordered the
reinstatement of payments under the Original Note effective March 31, 1998 and
agreed to a schedule of payment of all accrued and unpaid interest due under the
Original Note. The Second Report and Order was subsequently modified by that
certain Order on Reconsideration of the Second Report and Order adopted March
23, 1998 and released
<PAGE>

March 24, 1998 ("Order on Reconsideration"). Pursuant to the Order on
Reconsideration and the Public Notice, DA-98-741 (rel. April 17, 1998), the date
for the resumption of payments under the Original Note was changed to July 31,
1998 as well as certain other modifications to the terms contained in the Second
Report and Order.

     R-4. Pursuant to the terms of the Second Report and Order, as modified by
the Order of Reconsideration, the Maker elected to disaggregate a portion of the
spectrum covered by the License and in return, receive a partial reduction of
the principal balance of the Original Note (the "Disaggregation Election"). In
order to reflect the Disaggregation Election, the modification to the payment
terms with respect to "Suspension Interest" and "Deferred Interest" (as those
terms are defined below), and certain other modifications to the terms of the
Original Note and Original Security Agreement, (i) Maker and the Commission are
modifying the terms of the Original Note by this First Modification (the
Original Note, as modified by this First Modification, is hereinafter referred
to as the "Note"), (ii) Maker and the Commission are modifying the terms of the
Original Security Agreement by this First Modification (the Original Security
Agreement, as modified by this First Modification, is hereinafter referred to as
the "Security Agreement"), and (iii) Maker is executing and delivering new
Financing Statements for the purpose of creating a lien on the "Modified
License" (as hereinafter defined) in favor of the Commission (the "New Financing
Statements") [the Original Financing Statements, as supplemented by the New
Financing Statements, are hereinafter referred to as the "Financing
Statements"]. The Original Loan Documents, as amended, modified and/or
supplemented by this First Modification and the New Financing Statements,
together with any and all amendments, modifications or supplements thereto, are
hereinafter collectively referred to as the "Loan Documents". All of the terms,
conditions and provisions of the Loan Documents are hereby incorporated herein
and made a part hereof in their entireties by this reference.

     R-5. It is the intention of the Maker and the Payee that except as
specifically modified by this First Modification, the Original Note and Original
Security Agreement shall continue in full force and effect.

     NOW, THEREFORE, in consideration of the covenants and agreements herein
contained, the sum of Ten dollars ($10.00) and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
undersigned parties hereby covenant and agree and amend the Original Note as
follows:

     1.   The foregoing Recitals, including all terms defined therein, are
hereby incorporated in this First Modifications in the same extent as if they
had been herein stated in full. The documents referred to in the Original Note
shall include the documents referred to therein, as well as any and all
modifications, amendments, additions and/or supplements thereto and/or
replacements thereof.

     2.   This First Modification shall amplify and modify where specifically
provided

                                     -17-
<PAGE>

herein but shall not replace the Original Note. Except as specifically modified
herein, all the terms, conditions and obligations of the Original Note shall
remain in full force and effect, and all of the rights and remedies provided for
therein shall be preserved to the Commission. If there is any conflict between
the provisions of the First Modification and the provisions of the Original
Note, the provisions of this First Modification shall govern and prevail. THE
COMMISSION AND MAKER COVENANT AND AGREE THAT THIS FIRST MODIFICATION ONLY
MODIFIES THE TERMS OF THE ORIGINAL NOTE AND IS NOT A NOTATION OF THE ORIGINAL
NOTE.

     3.   The Original Security Agreement, as modified by this First
Modification, and the Original Financing Statements, as supplemented by the New
Financing Statements, will continue to encumber the License and Collateral (as
each of those terms are modified in this First Modification) with a first lien
security interest. The Original Note, as modified by this First Modification,
and all extensions, renewals, modifications and amendments and consolidations
thereof or substitutions therefore shall continue to be secured by the Security
Agreement and all other documents, instruments, certifications, security
agreements and financing statements executed and delivered in connection
therewith by the Maker or by its successors. The Original Note and this First
Modification shall be entitled to the benefits of, and to the security required
to be provided by, the aforesaid documents, some of which contain provisions for
the acceleration of the maturity of the Note upon the happening of certain
stated events.

     4.   Pursuant to the Disaggregation Election, Maker and the Commission
acknowledge and agree that the original principal balance of the Original Note
is hereby reduced, effective for all purposes as of the effective date of the
Original Note, to $2,834,452.50. Such reduced original principal balance is
hereinafter referred to as the "Principal Amount" and the defined term Principal
Amount contained in the Original Note is hereby modified to conform to the new
original principal balance of the Original Note.

     5.   The Amortization Schedule attached to the Original Note as Schedule A
is hereby deleted in its entirety. All references in the Original Note to
Schedule A are hereby deleted. All payments under the Note shall continue to be
made in accordance with the terms of the Original Note, as modified by the
provisions of this First Modification.

     6.   Maker and the Commission covenant and agree that pursuant to the terms
of the Suspension Order and the Second Report and Order, interest payments under
the Original Note were suspended for the period effective as of March 31, 1997
through and including March 31, 1998. The entire amount of unpaid interest that
accrued during the period beginning with the grant date of the License through
and including March 31, 1998 is hereinafter referred to as the "Suspension
Interest". All Suspension Interest is to be repaid in eight (8) equal payments
with the first such payment being due on the Effective Date. In addition,
pursuant to the terms of the Order on Reconciliation, (i) all interest accrued
on the Original Note from April 1, 1998 through the Effective Date ("Deferred
Interest") is due and payable in full on the Effective Date, (ii) all

                                     -18-
<PAGE>

payments under the Note were reinstated as of the Effective Date, and (iii) the
schedule for making quarterly interest and/or principal payments under the Note
was changed to require quarterly payments on October 31, January 31, April 30
and July 31 of each year without any modification to the amounts for each
payment as provided in the Original Note, with the first such payment being due
and payable on October 31, 1998. Based upon the foregoing, the Original Note is
hereby amended to provide that the payments of interest and principal shall be
as follows:

     (a)  On the Effective Date, Maker shall make a payment to Payee in the
amount of all Deferred Interest ("Deferred Interest Payment").

     (b)  On the Effective Date, and continuing on each following October 31,
January 31, April 30 and July 31 thereafter until all Suspension Interest has
been paid in full, Maker shall make a payment equal to one-eighth (1/8th) of the
Suspension Interest outstanding as of March 31, 1998 ("Suspension Interest
Payment").

     (c)  Commencing on October 31, 1998, and continuing on each January 31,
April 30, July 31 and October 31 thereafter (such quarterly dates are
hereinafter referred to as the "New Quarterly Payment Dates" or individually a
"New Quarterly Payment Date"), Maker shall make equal, consecutive quarterly
payments of interest only at the "Annual Rate" (as that term is defined in the
Original Note) based upon the reduce Principal Amount as provided herein. On
each New Quarterly Payment Date, all accrued and outstanding interest for the
applicable calendar quarter shall be due and payable in full. The last quarterly
interest only payment shall be due on the New Quarterly Payment Date occurring
immediately prior to the date that the first quarterly payment of principal and
interest is due.

     (d)  Commencing on the "First Principal Repayment Date" (as hereinafter
defined), and continuing on each New Quarterly Payment Date thereafter until the
"Maturity Date" (as that term is defined in the Original Note), Maker shall pay
principal and interest in equal quarterly installments equal to all accrued
interest during the applicable calendar quarter plus a principal payment
calculated using an amortization schedule which would result in the Note being
repaid in full over a four (4) year term comprised of sixteen (16) quarterly
payment periods. The "First Principal Repayment Date" shall be (i) the date
provided in the Original Note for the first payment of principal and interest if
such date is a New Quarterly Payment Date, or (ii) the first New Quarterly
Payment Date following the date currently provided in the Original Note for the
first payment of principal and interest if the first quarterly payment of
principal and interest required under the Original Note is due on a day other
than one of the New Quarterly Payment Dates.

     (e)  The Maker and the Commission acknowledge and agree that no
modification is being made to the "Maturity Date" (as that term is defined in
the Original Note) and that the entire "Principal Amount" (as that term is
defined in the Original Note), together with accrued

                                     -19-
<PAGE>

and unpaid interest thereon, and all other remaining obligations of Maker under
the Note, if not sooner paid, shall be due and payable on the Maturity Date.

     (7)  The sixth (6th) paragraph of the Original Note reading "All interest
shall be computed on the basis of a 360-day year for actual days elapsed." is
hereby deleted in its entirety and replaced with the following:

          Interest on the Principal Amount of this Note shall be
          computed at the Annual Rate on the basis of a three
          hundred sixty (360)-day year composed of twelve (12)
          months of thirty (30) days each, except that interest due
          and payable for a period of less than a full quarterly
          payment period shall be calculated by dividing the full
          quarterly payment by the actual number of calendar days in
          the applicable quarterly payment period to create a daily
          rate that is multiplied by the actual number of days
          elapsed since the last day of the previous quarterly
          payment period.

     (8)  If the Suspension Interest Payment and the Deferred Interest Payment
due on the Effective Date are received by the Commission on or before October
29, 1998, together with any applicable late fee, Maker and the Commission agree
that the paragraphs of the Original Note defining when an "Event of Default"
occurs will be modified by deleting in their entirety the provisions beginning
with the phrase "a non-payment by Maker of any Principal or Interest on the due
date. . ." and continuing through ". . ., Maker has not resumed payments of
Interest and Principal in accordance with the terms of this Note; or "and
replace with the following:

          a.   Any non-payment by Maker of any Principal and/or
          Interest on the due date specified hereinabove, and
          the failure to make such payment, together with all
          applicable "Late Fees" (as hereinafter defined) within
          one hundred eighty (180) days after such Principal and/or
          Interest payment due date; or

     (9)  The Original Note is hereby amended to provide that in addition to the
Events of Default listed therein, as modified by this First Modification, it
shall be an Event of Default under the Note if either the Suspension Interest
Payment due on the Effective Date or the Deferred Interest Payment due on the
Effective Date is not received by the Commission on or before October 29, 1998.
No additional grace or cure period shall be applicable to such payment. All
other payments of Suspension Interest shall be subject to the same terms and
conditions as the remaining Principal and/or Interest payments under the Note.

     (10) The paragraph of the Original Note which imposes a late fee upon the
occurrence of any Event of Default is hereby modified by deleting in its
entirety the sentence reading "Upon any Event of Default under this Note, Payee
may assess a late fee and/or administrative charge, plus the costs of
collection, litigation, attorneys' fees, and default payment as specified in the

                                     -20-
<PAGE>

then-applicable orders and regulations of the Commission as amended, and Maker
acknowledges that it is liable and herein expressly promises to pay on demand
such additional costs, expenses, late charges, administrative charges, attorneys
fees, and default payment." and substituting in its place the following:

               Should any payment of Principal and/or Interest
          required under this Note not be paid in full on the due
          date as specified hereinabove, Maker acknowledges that
          the Payee will incur extra expenses for the handling of
          the delinquent payment and servicing the indebtedness
          evidenced hereby, and that the exact amount of theses
          extra expenses is extremely difficult and impractical
          to ascertain. Therefore, Maker shall, in such event,
          without further notice, and without prejudice to the
          right of the Payee to collect any other amounts
          provided to be paid hereunder or under the Security
          Agreement, or to declare an Event of Default, pay to
          the Commission the "Late Fee" (as hereinafter defined)
          to compensate Payee for expenses incurred in handling
          delinquent payments and the Maker confirms and agrees
          that the Late Fee is a fair approximation of the
          expenses so incurred by the Payee. The "Late Fee" is
          defined as the total, if any, of the "Non-Delinquency
          Late Fee" and the "Grace Period Late Fee" (as
          hereinafter defined). The "Non-Delinquency Late Fee"
          shall be an amount equal to five percent (5.0%) of any
          Principal and/or Interest payment required to be made
          hereunder and shall be automatically assessed if such
          payment is not made on the original date that such
          Principal and/or Interest Payment is due (without the
          benefit of any notice of grace period). If such
          Principal and/or Interest payment, together with the
          Non-Delinquency Late Fee, is not made on or before the
          ninetieth (90th)-day after the original date that such
          Principal and/or Interest payment was due, such payment
          shall automatically be subject to a second late fee
          (the "Grace Period Late Fee") equal to ten percent
          (10.0%) of the amount of such past due Principal and/or
          Interest Payment (without the benefit of any notice or
          grace period) in addition to the Non-Delinquency Late
          Fee.

               In addition to the foregoing, there shall also
          automatically be imposed on Maker, and Maker shall pay
          to the Commission without further notice, and without
          prejudice to the right of the Payee to collect any
          other amounts provided to be paid hereunder or under
          the Security Agreement, or to declare an Event of
          Default, the "Resumption Date Late Fee" (as hereinafter
          defined ) to compensate Payee for expense incurred in
          handling delinquent

                                     -21-
<PAGE>

          payment of the Suspension Interest Payment due on the
          Effective Date and/or the Deferred Interest Payment. The Maker
          confirms and agrees that the Resumption Date Late Fee is a
          fair approximation of the expenses so incurred by the Payee.
          The "Resumption Date Late Fee" shall be an amount equal to (i)
          five percent (5.0%) of the Suspension Interest Payment due on
          the Effective Date if such payment is not received by the
          Payee on the Effective Date (without the benefit of any notice
          or grace period), and (ii) five percent (5.0%) of the Deferred
          Interest Payment due on the Effective Date if such payment is
          not received by the Payee on the Effective Date (without the
          benefit of any notice or grace period).

Maker and Payee agree that all references in the Original Note to a late fee
shall be deemed to be a reference to the Late Fee and/or the Resumption Date
Late Fee, as applicable.

     (11) Pursuant to the Disaggregation Election, the Maker has returned to the
Commission one-half (1/2) of the spectrum represented by the License and
retained the right to use the remaining one-half (1/2) of the spectrum
represented by the License. In order to evidence the license for the retained
spectrum, the Commission has issued an amended license to the Maker, license
number PBB304C1 (herein referred to as the "Modified License"). Maker and the
Commission covenant and agree that all references in the Original Security
Agreement to "License" shall be deemed to refer to the License, as modified by
the Modified License, and all references in the Original Security Agreement to
"Collateral" shall be deemed to refer to all of the Maker's rights and interest
in the License, as modified by the Modified License, and all proceeds, profits
and products of any sale or other disposition thereof. In order to confirm the
continuing lien, operation and effect of the Security Agreement on the License,
as modified by the Modified License, and the Collateral, Maker does hereby
regrant and reconvey unto the Commission, its successors and assigns, a security
interest in the License, as modified by the Modified License, together with all
other rights and property granted to the Commission pursuant to the terms of the
Original Security Agreement. The foregoing grant by Maker shall be deemed to be
a grant and conveyance of a security interest upon all of the terms and
conditions contained in the Original Security Agreement without the necessity of
repeating the Original Security Agreement herein in its entirety.

     12.  Maker represents and warrants that its principal place of business and
chief executive office is located at Marksville, Louisiana.

     13.  All defined terms contained in the Loan Documents shall have the same
meaning as set forth therein except as may otherwise be expressly set forth in
this First Modification. Maker and the Commission covenant and agree that the
reference in the Security Agreement to the "Note" shall be deemed a reference to
the Original Note, as modified by this First

                                     -22-
<PAGE>

Modification.

     14.  This First Modification constitutes the entire agreement regarding the
amendment and modification of the Original Note between Maker and the Commission
and is intended by Maker and the Commission to be a complete, exclusive and
final integration of all prior and contemporaneous agreements and negotiations
of Maker and the Commission concerning the amendment and modification of the
Original Note. There have been no other agreements, covenants, representations
or warranties between the Maker and the Commission regarding the amendment and
modification of the Original Note other than those expressly stated or referred
to in this First Modification or any document delivered pursuant hereto.

     15.  This First Modification may be amended or modified only by written
instruments signed by Maker and Commission. If any covenant, condition or
provision of this First Modification is declared by a court of competent
jurisdiction to be invalid and not binding on the Maker and/or the Commission,
such declaration shall in no way affect the validity of the other remaining
covenants, conditions and provisions of this First Modification.

     16.  This First Modification shall bind, inure to the benefit of and be
enforceable by Maker and the Commission, their respective heirs, beneficiaries,
legal representatives, successors and assigns.

     17.  Except as modified by this First Modification, Maker agrees that the
Original Note shall continue in full force and effect without modification, and
the Original Note and all of the other Loan Documents are hereby expressly
approved, ratified, confirmed and reaffirmed by all parties to this First
Modification. Maker hereby acknowledges and agrees that it has no claims,
counterclaims, set-offs, defenses or other causes of action against the
Commission and/or under the Note, Security Agreement or nay of the other Loan
Documents and to the extent that any such set-offs, counterclaims, defenses or
other causes of action may exist, whether known or unknown, they are hereby
waived and forever relinquished by the Maker.

     18.  This First Modification shall be governed and construed in accordance
with the Communications Act of 1934, as amended from time to time, the then
applicable orders and regulations of the Commission and federal law.

     19.  This First Modification may be executed in counterparts, each of which
shall be deemed to be an original and all of which shall collectively be deemed
to constitute a single document.

     IN WITNESS WHEREOF, intending to be legally bound, the undersigned Maker
and the Commission have each executed this First Modification, under seal, as of
the day and year first hereinabove written.

                           [SIGNATURE PAGES FOLLOW]

                                     -23-
<PAGE>

                                SIGNATURE PAGE

                             FIRST MODIFICATION OF

                         INSTALLMENT PAYMENT PLAN NOTE


                                        MAKER:


Witness/Attest:                         WIRELESS 2000, INC.

                                        A, Louisiana Corporation

/s/ Donna Mayeux
- ----------------
                                        By: /s/ Joan S. Ducote
                                            ----------------------
                                        Name:   Joan S. Ducote
                                              --------------------
                                        Title:  President
                                              --------------------

                                        Date:  July 21, 1998

                                     -24-
<PAGE>

                                SIGNATURE PAGE

                             FIRST MODIFICATION OF

                         INSTALLMENT PAYMENT PLAN NOTE



                                  COMMISSION:

Witness/Attest:                   FEDERAL COMMUNICATIONS COMMISSION

__________________________
                                  By:    ___________________________________

                                  Name:  ___________________________________
                                  Its:   Authorized Signatory for the
                                         Wireless Telecommunications Bureau,
                                         Federal Communications Commission

                                     -25-
<PAGE>

                                                                 Schedule 2.2(3)


SCHEDULE OF REQUIRED PAYMENTS FROM TELECORP TO WIRELESS 2000 FOR MONROE
REIMBURSEMENT AND PRIOR INTEREST PAYMENTS

Monroe Reimbursement                                             $200,000.00

Prior Interest Payments Made by Wireless

July 31, 1998                                                    $238,746.74

October 31, 1998                                                 $198,621.75

                                                                 -----------
Total Due From TeleCorp                                          $637,368.49

                                     -26-
<PAGE>

                                                                    SCHEDULE 4.2

                               Wireless Consents
                               -----------------

         The execution, delivery and performance of the Agreement will or may
require the following consents and approvals, without which Wireless will be in
violation of contracts and agreements to which it is party, and its actions
would constitute a breach and default of such agreements, to-wit:

         1.  The Federal Communications Commission;

         2.  Consent, approval and waiver of certain rights by Century Telephone
Enterprises, Inc. and Century Personal Access Networks, Inc. (as to the Stock
Pledge Agreement); and

         3.  Consent, approval and waiver of certain rights by Wireless 2000,
Inc., and its stockholders (as to the Stock Pledge Agreement).

                                     -27-
<PAGE>

                                                                    SCHEDULE 4.3


                              Wireless Litigation
                              -------------------

None.

                                     -28-
<PAGE>

                                                                    SCHEDULE 4.6


                           Wireless FCC Proceedings
                           ------------------------

None.

                                     -29-
<PAGE>

                                                                    SCHEDULE 5.2


                               Company Consents
                               ----------------

         The execution, delivery and performance of the Agreement will or may
require the following consents, approvals and reviews:

         1.   The Federal Communications Commission.

         2.   AT&T Wireless pursuant to Section 7.1(4) and 7.2(8) of the
              Agreement.

                                     -30-
<PAGE>

                                                                    SCHEDULE 5.6


                            Company Capitalization
                            ----------------------

                                     -31-
<PAGE>

                                  Schedule V
             Share Allocation Without Supplemental Allocation (a)

<TABLE>
<CAPTION>
                                              Preferred Stock
- ----------------------------------------------------------------------------------------------------------------------
Series A           Series B         Series C         Series D        Series E         Series F         Senior Common
- ----------------------------------------------------------------------------------------------------------------------
<S>                <C>              <C>              <C>             <C>              <C>              <C>
66,722.81          0.00             135,347.75       34,266.97       19,660.81        33,361.41        0.00
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
                                                   Common
- ----------------------------------------------------------------------------------------------------------------------
Series A              Series B           Tracking C          Tracking D         Voting Preference   Total
- ----------------------------------------------------------------------------------------------------------------------
<S>                   <C>                <C>                 <C>                <C>                 <C>
156,049.57            0.00               918.47              2,755.41           10.00               193,084.85
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>

                                     -32-
<PAGE>

                                  Schedule V
               Share Allocation Without Supplemental Allocation

<TABLE>
<CAPTION>
                                                Preferred Stock
- ----------------------------------------------------------------------------------------------------------------------
Series A           Series B         Series C         Series D        Series E         Series F         Senior Common
- ----------------------------------------------------------------------------------------------------------------------
<S>                <C>              <C>              <C>             <C>              <C>              <C>
66,722.81          0.00             142,680.29       34,266.97       19,660.81        33,361.41        0.00
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
                                                     Common
- ----------------------------------------------------------------------------------------------------------------------
Series A              Series B           Tracking C          Tracking D         Voting Preference   Total
- ----------------------------------------------------------------------------------------------------------------------
<S>                   <C>                <C>                 <C>                <C>                 <C>
163,318.80            0.00               918.47              2,755.41           10.00               200,354.08
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>

                                     -33-
<PAGE>

                                                                  EXHIBIT 6.5(b)

                            STOCK PLEDGE AGREEMENT


     This Agreement, dated as of _______________ ___, 199_, is between the
stockholders of Wireless 2000, Inc. ("Wireless") listed on Schedule 1 attached
hereto (together with their respective successors and assigns, each a "Pledgor"
                                                                       -------
and collectively, the "Pledgors"), and TeleCorp PCS, Inc., a Delaware
                       --------
corporation ("TeleCorp"). Capitalized terms defined in the Acquisition Agreement
(defined below) and not otherwise defined herein are used herein with the
meanings so defined. Except as the context otherwise explicitly requires, (a)
the word "including" shall be construed as "including without limitation", (b)
terms defined in the UCC and not otherwise defined herein have the meaning
provided under the UCC, (c) references to a particular statute or regulation
include all rules and regulations thereunder and any successor statute,
regulation or rules, in each case as from time to time in effect, and (d)
references to a particular Person include such Person's successors and assigns
to the extent not prohibited by this Agreement.

                                   RECITALS

     WHEREAS, TeleCorp and Wireless are parties to that certain license
acquisition agreement dated December 2, 1998 (the "Acquisition Agreement");

     WHEREAS, pursuant to (S)6.5 of the Acquisition Agreement, TeleCorp has
agreed to make interest payments to the FCC or the Treasury on behalf of
Wireless that may become due under the FCC Debt prior to Closing (collectively,
"Advances");

     WHEREAS, as a condition to the Company's agreement to make Advances and in
order to secure Wireless' repayment of Advances under the Acquisition Agreement
("Repayment") in the event either Wireless or TeleCorp terminates the
Acquisition Agreement, the parties hereto have agreed to execute and deliver
this Agreement;

     NOW, THEREFORE, in consideration of the mutual covenants herein contained,
the parties hereto, intending to be legally bound hereby, agree as follows:

1.   Security.
     --------

                                     -34-
<PAGE>

     1.1  Collateral. As security for Repayment to TeleCorp by Wireless in the
          ----------
event either Wireless or TeleCorp terminates the Acquisition Agreement, each
Pledgor mortgages, pledges and collaterally grants and assigns to TeleCorp, and
creates a security interest in favor of TeleCorp, all of such Pledgor's right,
title and interest in and to (but none of its obligations or liabilities with
respect to) the securities set forth opposite of such Pledgor's name on Schedule
1, whether now owned or hereafter acquired, all of which shall be included in
the term "Collateral":

          1.1.1  Pledged Stock. (a) All shares of capital stock or other
                 -------------
     evidence of beneficial ownership interest in Wireless, and (b) all options,
     warrants and similar rights to acquire such capital stock or interests. All
     such capital stock, interests, options, warrants and other rights are
     collectively referred to as the "Pledged Stock".
                                      -------------

          1.1.2  Pledged Rights. All rights to receive profits or surplus of, or
                 --------------
     other distributions (including income, return of capital and liquidating
     distributions). All such rights are collectively referred to as the
     "Pledged Rights".
      --------------
     1.2  Representations, Warranties and Covenants with Respect to Collateral.
          --------------------------------------------------------------------
Each Pledgor represents, warrants and covenants to TeleCorp that:

          1.2.1  Pledged Stock. All shares of capital stock and other securities
                 -------------
     included in the Pledged Stock are and shall be at all times duly
     authorized, validly issued, fully paid and (in the case of capital stock)
     non-assessable. Each Pledgor will deliver to TeleCorp certificates
     representing the Pledged Stock, registered, if TeleCorp so requests, in the
     name of TeleCorp or its nominee, as pledgee, or accompanied by a stock
     transfer power executed in blank and, if TeleCorp so requests, with the
     signature guaranteed, all in form and manner satisfactory to TeleCorp.
     Pledged Stock that is not evidenced by a certificate will be registered in
     TeleCorp's name as pledgee on the issuer's records, all in form and
     substance satisfactory to TeleCorp. TeleCorp may at any time transfer into
     its name or the name of its nominee, as pledgee, any Pledged Stock.

          1.2.2  No Liens or Restrictions on Transfer. All Collateral shall be
                 ------------------------------------
     free and clear of any Liens and restrictions on the transfer thereof. None
     of the Pledged Stock is subject to any option to purchase or similar rights
     of any Person.

     1.3  Administration of Collateral. The Collateral shall be administered as
          ----------------------------
follows, and if an Event of Default shall have occurred, Section 1.4 shall also
apply.

          1.3.1  Pledged Stock.
                 -------------

                 (a)   Distributions. Until an Event of Default shall occur,
                       -------------
          each Pledgor shall be entitled to receive all distributions on or with
          respect to the Pledged Stock (other than distributions constituting
          additional Pledged Stock). All distributions constituting additional
          Pledged Stock will be retained by TeleCorp (or if received

                                     -35-
<PAGE>

          by any Pledgor shall be held by such Pledgor in trust and shall be
          immediately delivered by such Pledgor to TeleCorp in the original form
          received, endorsed in blank) and held by TeleCorp as part of the
          Collateral.

                 (b)   If an Event of Default shall have occurred, all
          distributions on or with respect to the Pledged Stock shall be
          retained by TeleCorp (or if received by any Pledgor shall be held by
          such Pledgor in trust and shall be immediately delivered by it to
          TeleCorp in the original form received, endorsed in blank) and held by
          TeleCorp as part of the Collateral or applied by TeleCorp to the
          payment of the Repayment in accordance with Section 1.4.5.


          1.3.2  Voting.
                 ------

                 (a)   Until an Event of Default shall occur, each Pledgor shall
          be entitled to vote or consent with respect to Pledged Stock in any
          manner.

                 (b)   If an Event of Default shall have occurred, if and to the
          extent that TeleCorp shall so notify the Pledgors in writing, only
          TeleCorp shall be entitled to vote or consent or take any other action
          with respect to the Pledged Stock (and the Pledgors will, if so
          requested, execute or cause to be executed appropriate proxies
          therefor).

     1.4  Right to Realize upon Collateral. Except to the extent prohibited by
          --------------------------------
applicable law that cannot be waived, this Section 1.4 shall govern TeleCorp's
right to realize upon the Collateral if any Event of Default shall have
occurred. The provisions of this Section 1.4 are in addition to any rights and
remedies available at law or in equity. Upon an Event of Default, the following
provisions shall apply:

          1.4.1  General Authority. To the extent specified in written notice
                 -----------------
     from TeleCorp to the Pledgors, each Pledgor grants TeleCorp full and
     exclusive power and authority, subject to the other terms hereof and
     applicable law, to take any of the following actions (for the sole benefit
     of TeleCorp, but at each Pledgor's expense):

                 (a)   To ask for, demand, take, collect, sue for and receive
          all payments in respect of any Pledged Stock which such Pledgor could
          otherwise ask for, demand, take, collect, sue for and receive for its
          own use.

                (b)    To settle, compromise, prosecute or defend any action or
          proceeding with respect to any Pledged Stock and to enforce all rights
          and remedies thereunder which such Pledgor could otherwise enforce.

                                     -36-
<PAGE>

                  (c)    To notify the third party payor with respect to any
          Pledged Stock of the existence of the security interest created hereby
          and to cause all payments in respect thereof thereafter to be made
          directly to TeleCorp; provided, however, that whether or not TeleCorp
                                --------  -------
          shall have so notified such payor, such Pledgor will at its expense
          render all reasonable assistance to TeleCorp in collecting such items
          and in enforcing claims thereon.

                  (d)    To sell, transfer, assign or otherwise deal in or with
          any Collateral or the proceeds thereof, as fully as such Pledgor
          otherwise could do.

          1.4.2   Marshaling. TeleCorp shall not be required to make any demand
                  ----------
     upon, or pursue or exhaust any of its rights or remedies against, the
     Pledgors or any other guarantor, pledgor or any other Person with respect
     to the Repayment or to pursue or exhaust any of its rights or remedies with
     respect to any collateral therefor or any direct or indirect guarantee
     thereof. TeleCorp shall not be required to marshal the Collateral or to
     resort to the Collateral in any particular order, and all of its rights
     hereunder shall be cumulative. To the extent it may lawfully do so, each
     Pledgor absolutely and irrevocably waives and relinquishes the benefit and
     advantage of, and covenants not to assert against TeleCorp, any valuation,
     stay, appraisement, extension, redemption or similar laws now or hereafter
     existing which, but for this provision, might be applicable to the sale of
     any Collateral made under the judgment, order or decree of any court, or
     privately under the power of sale conferred by this Agreement or otherwise.
     Without limiting the generality of the foregoing, each Pledgor (a) agrees
     that it will not invoke or utilize any law which might prevent, cause a
     delay in or otherwise impede the enforcement of the rights of TeleCorp in
     the Collateral, (b) waives all such laws, and (c) agrees that it will not
     invoke or raise as a defense to any enforcement by TeleCorp of any rights
     and remedies relating to the Collateral or any legal or contractual
     requirement with which TeleCorp may have in good faith failed to comply. In
     addition, each Pledgor waives any right to prior notice (except to the
     extent expressly required by this Agreement) or judicial hearing in
     connection with foreclosure on or disposition of any Collateral, including
     any such right which such Pledgor would otherwise have under the
     Constitution of the United States of America, any state or territory
     thereof or any other jurisdiction.

          1.4.3   Sales of Collateral. All or any part of the Collateral may be
                  -------------------
     sold for cash or other value in any number of lots at public or private
     sale, without demand, advertisement or notice; provided, however, that
                                                    --------  -------
     unless the Collateral to be sold threatens to decline speedily in value or
     is of a type customarily sold on a recognized market, TeleCorp shall give
     the Pledgors 10 days' prior written notice of the time and place of any
     public sale, or the time after which a private sale may be made, which
     notice each Pledgor and TeleCorp hereby agrees to be reasonable. At any
     sale or sales of Collateral, TeleCorp or any of its respective officers
     acting on its behalf, or TeleCorp's assigns, may bid for and purchase all
     or any part of the property and rights so sold, may use all or any

                                     -37-
<PAGE>

     portion of the Repayment as payment for the property or rights so
     purchased, and upon compliance with the terms of such sale may hold and
     dispose of such property and rights without further accountability to the
     Pledgors, except for the proceeds of such sale or sales pursuant to Section
     1.4.5. Each Pledgor acknowledges that any such sale will be made by
     TeleCorp on an "as is" basis with disclaimers of all warranties, whether
     express or implied. Each Pledgor will execute and deliver or cause to be
     executed and delivered such instruments, documents, assignments, waivers,
     certificates and affidavits, will supply or cause to be supplied such
     further information and will take such further action as TeleCorp shall
     request in connection with any such sale.

          1.4.4   Sale without Registration. If, at any time when TeleCorp shall
                  -------------------------
     determine to exercise its rights hereunder to sell all or part of the
     securities included in the Collateral, the securities in question shall not
     be effectively registered under the Securities Act (or other applicable
     law), TeleCorp may, in its sole discretion, sell such securities by private
     or other sale not requiring such registration in such manner and in such
     circumstances as TeleCorp may deem necessary or advisable in order that
     such sale may be effected in accordance with applicable securities laws
     without such registration and the related delays, uncertainty and expense.
     Without limiting the generality of the foregoing, in any event TeleCorp
     may, in its sole discretion, (a) approach and negotiate with a single
     purchaser or one or more possible purchasers to effect such sale, (b)
     restrict such sale to one or more purchasers each of whom will represent
     and agree that such purchaser is purchasing for its own account, for
     investment and not with a view to the distribution or sale of such
     securities, and (c) cause to be placed on certificates representing the
     securities in question a legend to the effect that such securities have not
     been registered under the Securities Act (or other applicable law) and may
     not be disposed of in violation of the provisions thereof. Each Pledgor
     agrees that such manner of disposition is commercially reasonable, that it
     will upon TeleCorp's request give any such purchaser access to such
     information regarding the issuer of the securities in question as TeleCorp
     may reasonably request and that TeleCorp shall not incur any responsibility
     for selling all or part of the securities included in the Collateral at any
     private or other sale not requiring such registration, notwithstanding the
     possibility that a substantially higher price might be realized if the sale
     were deferred until after registration under the Securities Act (or other
     applicable law) or until made in compliance with certain other rules or
     exemptions from the registration provisions under the Securities Act (or
     other applicable law). Each Pledgor acknowledges that no adequate remedy at
     law exists for breach by it of this Section 1.4.4 and that such breach
     would not be adequately compensable in damages and therefore agrees that
     this Section 1.4.4 may be specifically enforced.

          1.4.5   Application of Proceeds. The proceeds of all sales and
                  -----------------------
     collections in respect of any Collateral or other assets of the Pledgors
     all funds collected from the

                                     -38-
<PAGE>

      Pledgors and any cash contained in the Collateral, the application of
      which is not otherwise specifically provided for herein, shall be applied
      as follows:

          First, to the Repayment, the payment of the costs and expenses of such
sales and collections, the reasonable expenses of TeleCorp and the reasonable
fees and expenses of its counsel; and

          Second, any surplus then remaining shall be paid to the Pledgors,
subject, however, to the rights of the holder of any then existing Lien of which
TeleCorp has actual notice.

     1.5  Custody of Collateral. Except as provided by applicable law that
          ---------------------
cannot be waived, TeleCorp will have no duty as to the custody and protection of
the Collateral, the collection of any part thereof or of any income thereon or
the preservation or exercise of any rights pertaining thereto, including rights
against prior parties, except for the use of reasonable care in the custody and
physical preservation of any Collateral in its possession. TeleCorp will not be
liable or responsible for any loss or damage to any Collateral, or for any
diminution in the value thereof, by reason of the act or omission of any agent
selected by TeleCorp acting in good faith.

2.   Representations and Warranties. In order to induce TeleCorp to make
     ------------------------------
Advances under the Acquisition Agreement, each Pledgor represents and warrants
to TeleCorp that:

     2.1  Organization and Business. If a Pledgor is a corporation, such Pledgor
          -------------------------
is a duly organized and validly existing corporation, in good standing under the
laws of the state of its incorporation, with all power and authority, corporate
or otherwise, necessary (a) to enter into and perform this Agreement, and (b) to
own its properties and carry on the business now conducted or proposed to be
conducted by it. Certified copies of the Charter and By-laws of such Pledgor
have been previously delivered to TeleCorp and are correct and complete, or
prior to the delivery of any Advance by TeleCorp to Wireless under the
Acquisition Agreement, such organizational documents of each corporate Pledgor
will be delivered to TeleCorp in a form that is correct and complete.

     2.2  Authorization and Enforceability. If a Pledgor is a corporation, such
          --------------------------------
Pledgor has taken all corporate action required to execute, deliver and perform
this Agreement. This Agreement constitutes the legal, valid and binding
obligation of such Pledgor, enforceable against such Pledgor in accordance with
its terms.

     2.3  No Legal Obstacle to Agreements. Neither the execution, delivery and
          -------------------------------
performance of this Agreement, nor the consummation of any transaction referred
to in or contemplated by this Agreement, has constituted or resulted, or will
constitute or result, in:

                                     -39-
<PAGE>

               (a)  Any breach or termination of the provisions of any
          agreement, instrument, deed or lease to which such Pledgor is a party
          or by which it is bound, or of the Charter or By-laws of such Pledgor;
          or

               (b)  The violation of any law, statute, judgment, decree or
          governmental order, rule or regulation applicable to such Pledgor.

No approval, authorization or other action by, or declaration to or filing with,
any governmental or administrative authority or any other Person is required to
be obtained or made by such Pledgor in connection with the execution, delivery
and performance of this Agreement or the transactions contemplated hereby.

3.   Definitions.
     -----------

     3.1  "Agreement" means this Pledge Agreement as amended, modified and from
           ---------
time to time in effect.

     3.2  "Collateral" is defined in Section 1.1.
           ----------

     3.3  "Event of Default" shall mean:
           ----------------

          3.3.1   Failure of Wireless to make the Repayment pursuant to the
     terms of the Acquisition Agreement.

          3.3.2   An involuntary petition for bankruptcy is commenced against
     Wireless and the petition shall not have been dismissed, stayed, bonded or
     discharged within sixty (60) days after filing of the petition; or a court
     having jurisdiction in the premises shall enter a decree or order for
     relief in respect of Wireless in an involuntary case, under any applicable
     bankruptcy, insolvency or other similar law now or hereinafter in effect,
     or any other similar relief shall be granted under any applicable federal,
     state, local or foreign law.

          3.3.3   Wireless shall (1) commence a voluntary case under any
     applicable bankruptcy, insolvency or similar law now or hereafter in
     effect, (2) consent to the entry of an order for relief in an involuntary
     case, or to the conversion of an involuntary case to a voluntary case,
     under any such law, (3) consent to the appointment of or taking possession
     by a receiver, trustee or other custodian for all or a substantial part of
     its property, (4) make any assignment for the benefit of creditors, or (5)
     take any corporate action to authorize any of the foregoing.

          3.3.4   Upon a "Change of Control," defined as any consolidation,
     reorganization or merger of Wireless or any sale of all or substantially
     all of the assets of Wireless (not including the transfer of 15 MHz of the
     Lake Charles License that is not included in the

                                     -40-
<PAGE>

     Disaggregated Licenses), including without limitation, a transfer of any of
     the Disaggregated Licenses not in accordance with the terms and conditions
     of the Acquisition Agreement.

          3.3.5   In the event any lien granted under this Agreement shall cease
     to be a perfected lien.

          3.3.6   An occurrence of a default in the due performance or
     observance of any term, covenant or agreement required to be performed or
     observed pursuant hereto; provided that a default shall not be an Event of
     Default unless Wireless fails, after written notice thereof, to cure such
     default within thirty (30) days of receipt of such notice, or such
     additional time as may be necessary to cure such default so long as
     Wireless continues diligently to prosecute such cure.

     3.4  "Pledged Rights" is defined in Section 1.1.2
           --------------
     3.5  "Pledged Stock" is defined in Section 1.1.1.
           -------------

4.   Defeasance. Upon (i) Closing of the Acquisition Agreement, or (ii) in the
     ----------
event either TeleCorp or Wireless terminates the Acquisition Agreement,
TeleCorp's receipt of the Repayment by Wireless, this Agreement shall terminate
and, at the Pledgors' written request, accompanied by such certificates and
other items as TeleCorp shall reasonably deem necessary, the Collateral shall
revert to the Pledgors and the right, title and interest of TeleCorp therein
shall terminate. Thereupon, on the Pledgors' demand and at its cost and expense,
TeleCorp shall execute proper instruments, acknowledging satisfaction of and
discharging this Agreement, and shall redeliver to the Pledgors any Collateral
then in its possession.

5.   Successors and Assigns.  This Agreement is binding upon and is solely for
     ----------------------
the benefit of the parties hereto and their respective permitted successors,
legal representatives and permitted assigns. Neither party may assign its rights
and obligations hereunder without the prior written consent of the other party,
except that TeleCorp shall have the right to assign its rights under this
Agreement to the lenders (the "Lenders") named in the Credit Agreement, dated as
                               -------
of July 17, 1998, by and amongTeleCorp, the lenders party thereto and the Chase
Manhattan Bank, as Administrative Agent, TD Securities (USA) Inc., as
Syndication Agent, and Bankers Trust Company, as Documentation Agent (the
"Credit Agreement"), as security pursuant to the terms of the Credit Agreement
and the documents and instruments executed therewith, it being understood that,
in connection with any such assignment to the Lenders, the Lenders shall not
assume any obligations of TeleCorp hereunder.

6.   Notices. Any notice or other communication in connection with this
     -------
Agreement shall be deemed to be given if given in writing (including telex,
telecopy or similar teletransmission) addressed as provided below (or to the
addressee at such other address as the addressee shall have specified by notice
actually received by the addressor), and if either (a) actually delivered in

                                     -41-
<PAGE>

fully legible form to such address (evidenced in the case of a telex by receipt
of the correct answerback) or (b) in the case of a letter, five business days
shall have elapsed after the same shall have been deposited in the United States
mails, with first-class postage prepaid and registered or certified.

     If to the Pledgors, to their respective address set forth in Schedule 1
hereto.

     If to TeleCorp, to it at its address specified in or pursuant to Section
10.3 of the Acquisition Agreement.

7.   Venue; Service of Process.
     -------------------------

               (a)  Each Pledgor irrevocably submits to the nonexclusive
          jurisdiction of the state courts of the Commonwealth of Virginia and
          to the nonexclusive jurisdiction of any United States District Court
          in Virginia for the purpose of any suit, action or other proceeding
          arising out of or based upon this Agreement or the subject matter
          hereof; and

               (b)  Each Pledgor waives to the extent not prohibited by
          applicable law, and agrees not to assert, by way of motion, as a
          defense or otherwise, in any such proceeding brought in any of the
          above-named courts, any claim that it is not subject personally to the
          jurisdiction of such court, that its property is exempt or immune from
          attachment or execution, that such proceeding is brought in an
          inconvenient forum, that the venue of any such proceeding is improper,
          or that this Agreement, or the subject matter hereof, may not be
          enforced in or by such court.

8.   WAIVER OF JURY TRIAL. TO THE EXTENT NOT PROHIBITED BY APPLICABLE LAW WHICH
     --------------------
CANNOT BE WAIVED, EACH OF TELECORP AND EACH PLEDGOR WAIVES, AND COVENANTS THAT
IT WILL NOT ASSERT (WHETHER AS PLAINTIFF, DEFENDANT OR OTHERWISE), ANY RIGHT TO
TRIAL BY JURY IN ANY FORUM IN RESPECT OF ANY ISSUE, CLAIM, DEMAND OR ACTION
ARISING OUT OF OR BASED UPON THIS AGREEMENT, THE ACQUISITION AGREEMENT OR THE
SUBJECT MATTER HEREOF OR THEREOF OR IN ANY WAY CONNECTED WITH THE DEALINGS OF
TELECORP OR THE PLEDGORS IN CONNECTION WITH ANY OF THE ABOVE, IN EACH CASE
WHETHER NOW EXISTING OR HEREAFTER ARISING AND WHETHER IN CONTRACT OR TORT OR
OTHERWISE. Each Pledgor acknowledges that it has been informed by TeleCorp that
the provisions of this Section 8 constitute a material inducement upon which
TeleCorp has relied, is relying and will rely in entering into the Acquisition
Agreement, and that it has reviewed the provisions of this Section 8 with its
counsel. TeleCorp or the Pledgors may file an original counterpart or a copy of
this Section 8 with any

                                     -42-
<PAGE>

court as written evidence of the consent of TeleCorp and the Pledgors to the
waiver of the right to trial by jury.

9.   General. All covenants, agreements, representations and warranties made in
     -------
this Agreement or in certificates delivered pursuant hereto or thereto shall be
deemed to have been relied on by TeleCorp, notwithstanding any investigation
made by TeleCorp, and shall survive the execution and delivery to TeleCorp
hereof. The invalidity or unenforceability of any term or provision hereof shall
not affect the validity or enforceability of any other term or provision hereof.
The headings in this Agreement are for convenience of reference only and shall
not limit, alter or otherwise affect the meaning hereof. This Agreement
constitute the entire understanding of the parties with respect to the subject
matter hereof and supersede all prior and current understandings and agreements,
whether written or oral. This Agreement may be executed in any number of
counterparts, which together shall constitute one instrument. This Agreement
shall be governed by and construed in accordance with the laws (other than the
conflict of laws rules) of the Commonwealth of Virginia.

10.  Further Assurances. Each Pledgor represents and warrants to TeleCorp that
     ------------------
after the execution date hereof it will execute and deliver, or cause to be
executed and delivered, such instruments, documents and the like, and will take
such further action as TeleCorp shall request, necessary or appropriate to
effect the transactions contemplated under this Agreement.

                                     -43-
<PAGE>

     Each of the undersigned has caused this Agreement to be executed and
delivered by its duly authorized officer as an agreement under seal as of the
date first written above.

                                          WIRELESS STOCKHOLDERS:


                                          ____________________________________
                                          Name:  _____________________________

                                          ____________________________________
                                          Name:  _____________________________

                                          ____________________________________
                                          Name:  _____________________________

                                          ____________________________________
                                          Name:  _____________________________



                                          TELECORP PCS, INC.

                                          By:    _____________________________
                                          Name:  _____________________________
                                          Title: _____________________________


                                     -44-

<PAGE>

                                                               EXHIBIT 10.17.1
                                                               EXECUTION COPY

===============================================================================

                            STOCKHOLDERS' AGREEMENT

                                 by and among

                            AT&T WIRELESS PCS INC.,

                            CASH EQUITY INVESTORS,

                           MANAGEMENT STOCKHOLDERS,

                                      and

                              TELECORP PCS, INC.

                           dated as of July 17, 1998

===============================================================================
<PAGE>

                               TABLE OF CONTENTS
                               -----------------

<TABLE>
<CAPTION>
                                                                                                              Page
                                                                                                              ----
<S>                                                                                                           <C>

1.       Certain Definitions..............................................................................       2

2.       Restated Certificate and Restated By-Laws........................................................      15

3.       Management of Company............................................................................      15
         3.1      Board of Directors......................................................................      15
         3.2      Removal; Filling of Vacancies...........................................................      16
         3.3      Initial Directors.......................................................................      17
         3.4      Compensation and Reimbursement..........................................................      17
         3.5      Business of the Company.................................................................      17
         3.6      Required Votes..........................................................................      17
         3.7      Transactions between the Company and the Stockholders or their Affiliates...............      19
         3.8      Board Committees........................................................................      19
         3.9      Voting Agreements and Voting Trusts.....................................................      19
         3.10     Additional Capital Contributions........................................................      20
         3.11     Board of Directors After Voting Preference Stock........................................      20

4.       Transfers of Shares..............................................................................      21
         4.1      General.................................................................................      21
         4.2      Right of First Offer....................................................................      23
         4.3      Rights of Inclusion.....................................................................      25
         4.4      Right of First Negotiation..............................................................      27
         4.5      Additional Conditions to Permitted Transfers............................................      28
         4.6      Representations and Warranties..........................................................      29
         4.7      Stop-Transfer...........................................................................      29

5.       Registration Rights..............................................................................      30

6.       Disqualifying Transactions.......................................................................      42
         6.1      Company Conversion Rights...............................................................      42
         6.2      Joint Marketing Right...................................................................      43

7.       Additional Rights and Covenants..................................................................      44
         7.1      Financial Statements....................................................................      44
         7.2      Purchase Right..........................................................................      45
         7.3      Access..................................................................................      46
         7.4      Merger, Sale or Liquidation of the Company..............................................      46
         7.5      Wholly-Owned Subsidiaries...............................................................      48
         7.6      Amendments of the Restated Certificate and By-Laws......................................      48
</TABLE>

                                       i
<PAGE>

<TABLE>
<S>                                                                                                             <C>
         7.7      Confidentiality.........................................................................      48
         7.8      IPO Date................................................................................      49
         7.9      AT&T PCS Retained Licenses..............................................................      49
         7.10     Regulatory Cooperation..................................................................      49
         7.11     Permitted Transactions..................................................................      49
         7.12     Springfield/Joplin......................................................................      50
         7.13     Covenant of Holders of Class C Common Stock.............................................      50

8.       Operating Arrangements...........................................................................      51
         8.1      Construction of Company Systems.........................................................      51
         8.2      Service Features........................................................................      52
         8.3      Quality Standards.......................................................................      52
         8.4      No Change of Business...................................................................      52
         8.5      Preferred Provider......................................................................      53
         8.6      Exclusivity.............................................................................      54
         8.7      Other Business; Duties; Etc.............................................................      55
         8.8      Acknowledgments and Termination of Exclusivity..........................................      55
         8.9      Equipment, Discounts and Roaming........................................................      56
         8.10     ANS Agreement...........................................................................      56
         8.11     Resale Agreements.......................................................................      57
         8.12     Non-Solicitation........................................................................      57
         8.13     Co-Location.............................................................................      58

9.       After-Acquired Shares; Recapitalization..........................................................      58
         9.1      After Acquired Shares; Recapitalization.................................................      58
         9.2      Amendment of Restated Certificate.......................................................      58

10.      Share Certificates...............................................................................      59
         10.1     Restrictive Endorsements; Replacement Certificates......................................      59

11.      Equitable Relief.................................................................................      59

12.      Miscellaneous....................................................................................      60
         12.1     Notices.................................................................................      60
         12.2     Entire Agreement; Amendment; Consents...................................................      61
         12.3     Term....................................................................................      62
         12.4     Survival................................................................................      64
         12.5     Waiver..................................................................................      64
         12.6     Obligations Several.....................................................................      64
         12.7     Governing Law...........................................................................      64
         12.8     Dispute Resolution......................................................................      64
         12.9     Benefit and Binding Effect; Severability................................................      67
         12.10    Amendment of By-Laws....................................................................      67
         12.11    Authorized Agent of At&T PCS............................................................      68
</TABLE>

                                      ii
<PAGE>

<TABLE>
         <S>                                                                                                    <C>
         12.12    FCC Approval............................................................................      68
         12.13    Expenses................................................................................      68
         12.14    Attorneys' Fees.........................................................................      68
         12.15    Headings................................................................................      68
         12.16    Counterparts............................................................................      68
</TABLE>

                                      iii
<PAGE>

Schedules

Schedule I                 Cash Equity Investors
Schedule II                Management Stockholders
Schedule III               Equity Capitalization
Schedule IV                Core Features
Schedule V                 Minimum Build-Out Plan
Schedule VI                PCS Territory
Schedule VII               Quality and Reporting Standards
Schedule VIII              Initial Directors
Schedule IX                Capital Budgets
Schedule X                 Voting Agreements
Schedule XI                Critical Network Elements

                                      iv
<PAGE>

Exhibits

Exhibit A                  Restated By-Laws
Exhibit B                  Restated Certificate
Exhibit C                  Form of Advanced Network Services Agreement

                                       v
<PAGE>

                            STOCKHOLDERS' AGREEMENT
                            -----------------------

     STOCKHOLDERS' AGREEMENT, dated as of July 17, 1998 (this "Agreement"), by
and among AT&T WIRELESS PCS INC., a Delaware corporation  (together with its
Affiliated Successors, "AT&T PCS"), TWR CELLULAR, INC., a Delaware corporation
(together with its Affiliated Successors, "TWR Cellular"), the investors listed
on Schedule I (individually, each a "Cash Equity Investor" and, collectively,
with any of its Affiliated Successors, the "Cash Equity Investors"), the
individuals listed on Schedule II (individually, each a "Management Stockholder"
and, collectively, the "Management Stockholders") and TELECORP PCS, INC., a
Delaware corporation (the "Company").  Each of the foregoing Persons, together
with all other Persons who, in connection with a Transfer (as hereinafter
defined) are required to become a party to this Agreement (other than the
Company), or with the consent of the Board of Directors (as hereinafter defined)
are issued shares of Company Stock and are required as a condition of such
issuance to become a party to this Agreement, are sometimes referred to herein,
individually, as a "Stockholder" and, collectively, as the "Stockholders."

                                   RECITALS
                                   --------

     WHEREAS, the authorized capital stock of the Company consists of:  (a)
1,404,000 shares of common stock, par value $0.01 per share ("Common Stock"),
including (i) 700,000 shares of Class A Voting Common Stock, par value $0.01 per
share ("Class A Voting Common Stock"), of which 156,049.57 shares are issued and
outstanding, (ii) 700,000 shares of Class B Non-Voting Common Stock, par value
$0.01 per share ("Class B Non-Voting Common Stock") of which no shares are
issued and outstanding (iii) 1,000 shares of Class C Common Stock, par value
$.01 per share ("Class C Common Stock"), of which 918.47 shares are issued and
outstanding, (iv) 3,000 shares of Class D Common Stock, par value $.01 per share
("Class D Common Stock"), of which 2,755.41 shares are issued and outstanding,
and (v) 10 shares designated as Voting Preference Stock, par value $0.01 per
share ("Voting Preference Stock"), of which 10 shares are issued and
outstanding; and (b) 510,000 shares of Preferred Stock, par value $0.01 per
share, including (i) 70,000 shares designated Series A Convertible Preferred
Stock, par value $0.01 per share ("Series A Preferred Stock"), of which
66,722.81 shares are issued and outstanding, (ii) 140,000 shares designated
Series B Preferred Stock, par value $0.01 per share ("Series B Preferred
Stock"), of which no shares are issued and outstanding, (iii) 140,000 shares
designated Series C Preferred Stock, $0.01 par value $0.01 per share ("Series C
Preferred Stock"), of which 135,347.75 shares are issued and outstanding, (iv)
35,000 shares designated Series D Preferred Stock, par value $0.01 per share
("Series D Preferred Stock"), of which 34,266.97 shares are issued and
outstanding, (v) 20,000 shares designated Series E Preferred Stock, par value
$0.01 per share ("Series E Preferred Stock"), of which 19,660.81 shares are
issued and outstanding, (vi) 35,000 shares designated Series F Preferred Stock,
par value $0.01 per share ("Series F Preferred Stock"), of which 33,361.41
shares are issued and outstanding, and (vii) 70,000 shares designated Senior
Common Stock, par value $0.01 per share ("Senior Common Stock"), of which no
shares are issued and outstanding (the "Series A
<PAGE>

Preferred Stock, the Series B Preferred Stock, the Series C Preferred Stock, the
Series D Preferred Stock, the Series E Preferred Stock, the Series F Preferred
Stock and the Senior Common Stock are collectively referred to as the "Preferred
Stock"); and

     WHEREAS, the shares of Class A Voting Common Stock as a class represent
49.9% of the voting power of the Company and the shares Voting Preference Stock
as a class represent 50.1% of the voting power of the Company; and

     WHEREAS, each Stockholder is the registered owner of the respective shares
of Class A Voting Common Stock, Class B Non-Voting Common Stock, Series A
Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E
Preferred Stock, Series F Preferred Stock and Voting Preference Stock set forth
opposite its name on Schedule III; and

     WHEREAS, the parties desire to enter into this Agreement in order to
provide for the management of the Company and to impose certain restrictions
with respect to the sale, transfer or other disposition of Common Stock on the
terms and conditions hereinafter set forth; and

     NOW, THEREFORE, in consideration of the premises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the parties agree as follows:

     1.   Certain Definitions.
          -------------------

     "Adopted Service Features" shall mean the Core Service Features and
      ------------------------
additional service features that are adopted by the Company's PCS Systems in
accordance with the terms of Section 8.2.

     "Advice" shall have the meaning set forth in Section 5(d)(xvii).
      ------

     "Affiliate" shall mean, with respect to any Person other than a natural
      ---------
person, any other Person that, either directly or indirectly through one or more
intermediaries, controls, or is controlled by or is under common control with
such Person and, with respect to any natural Person, any trust for the exclusive
benefit of such natural Person and/or any member of such natural Person's
Immediate Family in which such Person is the sole trustee thereof; provided,
                                                                   --------
however, for purposes of Section 8.6, "Affiliate" shall not include (x) Persons
- -------
who conduct business in the Territory in whom a Cash Equity Investor or any of
their respective Affiliates has made an investment or holds securities on the
date hereof in the ordinary course of their business, or any such Person who
conducts business in the Territory in whom a Cash Equity Investor or any of
their respective Affiliates makes an investment after the date hereof if such
Cash Equity Investor or Affiliate thereof controls such Person on a temporary
basis where reasonably necessary to protect its investment, or any person who
serves as an officer, director or is a partner of any such Person who is
affiliated with a Cash Equity Investor, or (y) The Chase Manhattan Bank and The
Toronto Dominion Bank.  For purposes of this Agreement and the Related
Agreements, Authorized Fund Management, Inc., a Texas corporation, and any
entity in

                                       3
<PAGE>

which it is the sole general partner shall be deemed an "Affiliate" of Hoak. As
used in this Agreement, "control", "controlled" or "controlling" shall mean
possession, directly or indirectly, of the power to direct or cause the
direction of the management and policies of a Person, whether through the
ownership of voting securities, by contract or otherwise.

     "Affiliated Successor" shall mean, with respect to any Person, an Affiliate
      --------------------
thereof that is a transferee or a successor in interest to any or all of such
Person's Company Stock and that is required to become a party to this Agreement
in accordance with the terms hereof; provided, however, that, for purposes of
                                     --------  -------
Section 4, with respect to any Cash Equity Investor, "Affiliated Successor"
shall also include partners, limited partners or members of a Cash Equity
Investor that are transferees of Series C Preferred Stock or Common Stock
pursuant to distributions in accordance with the partnership agreement or
operating agreement of such Cash Equity Investor.

     "Arbitration Rules" shall have the meaning set forth in Section 12.8(d).
      -----------------

     "AT&T Licensee" shall mean any Person that owns FCC licenses to provide
      -------------
Commercial Mobile Radio Service, which Person is authorized to provide any such
services using the phrase "Member, AT&T Wireless Services Network" or other
service marks of AT&T Corp.

     "AT&T PCS License Purchase Agreement" shall have the meaning assigned to
      -----------------------------------
such term in the Securities Purchase Agreement.

     "AT&T PCS" shall have the meaning set forth in the preamble.
      --------

     "AT&T Contributed Licenses" shall have the meaning assigned to such term in
      -------------------------
the Securities Purchase Agreement.

     "AT&T PCS Licenses" shall mean the AT&T Contributed Licenses and the AT&T
      -----------------
PCS Purchased Licenses.

     "AT&T PCS Purchased Licenses" shall have the meaning assigned to such term
      ---------------------------
in the Securities Purchase Agreement.

     "AT&T PCS Retained Licenses" shall have the meaning assigned to such term
      --------------------------
in the Securities Purchase Agreement.

     "AWS" shall mean AT&T Wireless Services, Inc., a Delaware corporation.
      ---

     "Beneficially Own" shall have the meaning set forth in Rule 13d-3 of the
      ----------------
Exchange Act.

     "Board of Directors" shall mean the Board of Directors of the Company.
      ------------------

     "BTA" shall mean a geographic area established by the Rand McNally 1992
      ---
Commercial Atlas & Marketing Guide, 123rd Edition, pp. 38-39, as modified by the
FCC to form the initial

                                       4
<PAGE>

geographic area of license for the C, D, E and F blocks of broadband PCS
spectrum as defined in Section 24.202 of the FCC's rules.

     "Business" shall mean the business of (a) owning, constructing and
      --------
operating systems to provide Company Communications Services on frequencies
licensed to the Company for Commercial Mobile Radio Services pursuant to the
AT&T PCS Licenses and PCS Licenses acquired pursuant to a Supplemental Closing
and the Telecorp Licenses and Permitted Cellular Licenses, (b) providing to end-
users and resellers, solely within the Territory, Company Communications
Services available on such systems, (c) providing in connection with such
Company Communications Services, solely within the Territory, the Adopted
Service Features and (subject to the immediately following sentence)
telecommunications services incidental or ancillary to such Company
Communications Services (including, by way of example, bundling additional
telecommunications services with Company Communications Services), and (d)
marketing and offering the services and features described in clauses (b) and
(c) within the Territory, including advertising such services and features using
broadcast and other media, so long as such advertising extends beyond the
Territory only when and to the extent necessary to reach customers and potential
customers in the Territory.  The activities described in clauses (a) and (b)
shall be the indispensable requisite, and primary business, of the Company and,
to the extent the Company provides telecommunications services incidental or
ancillary thereto, the Company and its Subsidiaries shall be only the agent or
reseller for the provider thereof and shall not own or lease the facilities used
to provide such services, except that (i) the Company may own or lease
facilities that, in the aggregate, do not have a purchase price to the Company
and its Subsidiaries in excess of $10 million, and the Company may be a
facilities-based provider of services using such facilities, and (ii) after
completion of the Minimum Build-Out Plan and certification that Company Systems
meet the TDMA Quality Standards, the amount of $10 million set forth in clause
(i) hereof shall be increased to $100 million.

     "Cash Equity Investors" shall have the meaning set forth in the preamble.
      ---------------------

     "Cellular System" shall mean a cellular mobile radio telephone system
      ---------------
constructed and operated in a "metropolitan statistical area" as defined by the
FCC or a "rural service area" as defined by the FCC (or any successor
territorial designation or subdivision thereof authorized by the FCC)
exclusively using the 824 MHZ to 849 MHZ and the 869 MHZ to 894 MHZ frequencies
pursuant to a License therefor issued by the FCC.

     "Cellular Territory" shall mean the geographic area in respect of which the
      ------------------
Company acquires Permitted Cellular Licenses.

     "Central and Southwest Region" shall mean the geographic area comprising
      ----------------------------
the States of Louisiana, Oklahoma, Minnesota, Illinois and Texas (excluding
Houston).

     "Class A Voting Common Stock" shall have the meaning set forth in the first
      ---------------------------
recital.

     "Class B Non-Voting Common Stock" shall have the meaning set forth in the
      -------------------------------
first recital.

                                       5
<PAGE>

     "Class C Common Stock" shall have the meaning set forth in the preamble.
      --------------------

     "Class D Common Stock" shall have the meaning set forth in the preamble.
      --------------------

     "Commission" shall mean the Securities and Exchange Commission or any other
      ----------
federal agency at the time administering the Securities Act.

     "Common Stock" shall have the meaning set forth in the first recital.
      ------------

     "Company" shall have the meaning set forth in the preamble.
      -------

     "Company Asset Sale" shall have the meaning set forth in Section 7.4(a).
      ------------------

     "Company Communications Services" shall mean mobile wireless
      -------------------------------
telecommunications services (including the transmission of voice, data, image or
other messages or content) provided solely within the Territory, initiated or
terminated using TDMA and frequencies licensed by the FCC, to or from subscriber
equipment that is capable of usage during routine movement throughout the area
covered by a cell site and routine handing-off between cell sites, and is either
intended for such usage or is temporarily fixed to a specific location on a
short-term basis (e.g., a bank of wireless telephones temporarily installed
during a special event of limited duration).  Without limiting the foregoing,
Company Communications Services shall include wireless office services if such
services comply with this definition.  Company Communications Services shall
also include the transmissions between the Company's cell sites and the
Company's switch or switches in the Territory, handing-off transmissions at the
Company's switch or switches for termination by other carriers, and receiving
transmissions to the Company's customers handed-off at the Company's switch or
switches, in each case for the purpose of facilitating Company Communications
Services described in the first sentence.

     "Company Merger" shall have the meaning set forth in Section 7.4(a).
      --------------

     "Company Sale Notice" shall have the meaning set forth in Section 6.2(a).
      -------------------

     "Company Stock" shall mean the Series A Preferred Stock, the Series C
      -------------
Preferred Stock, the Series D Preferred Stock, the Series E Preferred Stock, the
Series F Preferred Stock, the Senior Common Stock, the Voting Preference Stock,
the Class A Voting Common Stock, Class B Non-Voting Common Stock, the Class C
Common Stock and the Class D Common Stock.

     "Company Systems" shall mean the systems owned and operated by the Company
      ---------------
and its Subsidiaries to provide Company Communications Services in the
Territory.

     "Confidential Information" shall have the meaning assigned to such term in
      ------------------------
Section 7.7(a).

     "Core Service Features" shall mean the service features set forth on
      ---------------------
Schedule IV.

                                       6
<PAGE>

     "CPR" shall have the meaning set forth in Section 12.8(c).
      ---

     "Demand Notice" shall have the meaning set forth in Section 5(a)(i).
      -------------

     "Demand Registration" shall have the meaning set forth in Section 5(a)(i).
      -------------------

     "Demanding Stockholder" shall have the meaning set forth in Section
      ---------------------
5(a)(i).

     "Dispute" shall have the meaning set forth in Section 12.8(a).
      -------

     "Disqualifying Transaction" shall mean a merger, consolidation, asset
      -------------------------
acquisition or disposition, or other business combination involving AT&T Corp.
(or its Affiliates) and another Person, which other Person (together with its
Affiliates) (a) derives from telecommunications businesses annual revenues in
excess of five billion dollars (based on its most recently ended fiscal year),
(b) derives less than one-third of its aggregate revenues from the provision of
wireless telecommunications (based on its most recently ended fiscal year for
which such information is available), (c) owns FCC Licenses to offer (and does
offer) mobile wireless telecommunications services (excluding for purposes of
this clause (c) FCC Licenses to offer enhanced special mobile radio services)
serving more than 25% of the POPs within the Territory, and (d) with respect to
which AT&T PCS has given written notice to the Company and the other
Stockholders specifying that such merger, consolidation, asset acquisition or
disposition or other business combination shall be a Disqualifying Transaction
for purposes of this Agreement and the transactions contemplated hereby.

     "Employment Agreements" shall have the meaning assigned to such term in the
      ---------------------
Securities Purchase Agreement.

     "Equity Securities" shall have the meaning set forth in Section 7.2(a).
      -----------------

     "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended.
      ------------

     "FAA" shall have the meaning set forth in Section 12.8(e).
      ---

     "FCC" shall mean the Federal Communications Commission or similar
      ---
regulatory authority established in replacement thereof.

     "FCC Determination Date" shall mean such date, or such reasonable period of
      ----------------------
time as determined by the FCC in any regulation, rule, order or policy, as of or
after which the continued ownership of the Class D Common Stock by a Stockholder
which has suffered a Transfer Event will cause the Company to compromise or
forfeit any Material Benefits.

     "Federal Arbitration Act" shall have the meaning set forth in Section
      -----------------------
12.8(e).

                                       7
<PAGE>

     "Final Order" shall mean an action or decision that has been granted by the
      -----------
FCC as to which (i) no request for a stay or similar request is pending, no stay
is in effect, the action or decision has not been vacated, reversed, set aside,
annulled or suspended and any deadline for filing such request that may be
designated by statute or regulation has passed, (ii) no petition for rehearing
or reconsideration or application for review is pending and the time for the
filing of any such petition or application has passed, (iii) the FCC does not
have the action or decision under reconsideration on its own motion and the time
within which it may effect such reconsideration has passed, and (iv) no appeal
is pending including other administrative or judicial review, or in effect and
any deadline for filing any such appeal that may be designated by statute or
rule has passed.

     "First Offer" shall have the meaning set forth in Section 4.2(a).
      -----------

     "First Offer Period" shall have the meaning set forth in Section 4.2(b).
      ------------------

     "First Offeree" shall have the meaning set forth in Section 4.2(a).
      -------------

     "Governmental Authority" means a Federal, state or local court,
      ----------------------
legislature, governmental agency (including, without limitation, the United
States Department of Justice), commission or regulatory or administrative
authority or instrumentality.

     "Hoak" shall mean, collectively, Hoak Communications Partners, L.P. and HCP
      ----
Capital Fund, L.P. and their respective Affiliates.

     "Inclusion Event" shall have the meaning set forth in Section 4.3(a).
      ---------------

     "Inclusion Event Offeree" shall have the meaning set forth in Section
      -----------------------
4.3(a).

     "Inclusion Event Purchaser" shall have the meaning set forth in Section
      -------------------------
4.3(a).

     "Inclusion Notice" shall have the meaning set forth in Section 4.3(a).
      ----------------

     "Inclusion Stock" shall have the meaning set forth in Section 4.3(a).
      ---------------

     "Indemnified Party" shall have the meaning set forth in Section 5(e)(v).
      -----------------

     "Indemnified Stockholder" shall have the meaning set forth in Section
      -----------------------
5(e)(i).

     "Indemnifying Party" shall have the meaning set forth in Section 5(e)(v).
      ------------------

     "Immediate Family" shall mean an individual's spouse, children (including
      ----------------
adopted children), grandchildren, parents, grandparents, and siblings.

                                       8
<PAGE>

     "IPO Date" shall mean the first date on which (a) the Class A Voting Common
      --------
Stock shall have been registered pursuant to an effective Registration Statement
under the Securities Act, (b) the aggregate gross proceeds received by the
Company in connection with such Registration Statement(s) equals or exceeds $20
million, and (c) the Class A Voting Common Stock shall be listed for trading on
the New York Stock Exchange or the American Stock Exchange or authorized for
trading on NASDAQ, including without limitation its National Market System.

     "Issuance Notice" shall have the meaning set forth in Section 7.2(a).
      ---------------

     "Joint Marketing Period" shall have the meaning set forth in Section
      ----------------------
6.2(c).

     "Law" shall mean applicable common law and any statute, ordinance, code or
      ---
other law, rule, permit, permit condition, regulation, order, decree, technical
or other standard, requirement or procedure enacted, adopted, promulgated,
applied or followed by any Governmental Authority.

     "License" shall mean a license, permit, certificate of authority, waiver,
      -------
approval, certificate of public convenience and necessity, registration or other
authorization, consent or clearance to construct or operate a facility,
including any emissions, discharges or releases therefrom, or to transact an
activity or business, to construct a tower or to use an asset or process, in
each case issued or granted by a Governmental Authority.

     "License Purchase Agreement" shall have the meaning assigned to such term
      --------------------------
in the Securities Purchase Agreement.

     "Liens" shall mean, with respect to any asset, any mortgage, lien, pledge,
      -----
charge, security interest, right of first refusal or right of others therein or
encumbrance of any nature whatsoever in respect of such asset.

     "Majority in Interest" shall mean, with respect to the Cash Equity
      --------------------
Investors, Persons that Beneficially Own, in the aggregate more than 50% of the
aggregate number of shares of Common Stock Beneficially Owned by all such
Persons.

     "Majority of the Central and Southwest Region" shall mean PCS Systems and
      --------------------------------------------
Cellular Systems owned by AT&T PCS and its Affiliates covering a majority of the
POPs in all such PCS Systems and Cellular Systems in the Central and Southwest
Region.

     "Majority of the United States" shall mean PCS Systems and Cellular Systems
      -----------------------------
owned by AT&T PCS and its Affiliates covering a majority of the POPs in all such
PCS Systems and Cellular Systems in the United States.

                                       9
<PAGE>

     "Management Agreement" shall mean the Management Agreement, dated of even
      --------------------
date herewith, between the Company and TeleCorp Management Corp. I, L.L.C., as
the same may be amended, modified or supplemented in accordance with the terms
thereof.

     "Management Stockholder" shall have the meaning set forth in the preamble.
      ----------------------

     "Material Benefits" shall have the meaning set forth in Section 7.13.
      -----------------

     "Minimum Build-Out Plan" shall mean the build-out plan for the Company's
      ----------------------
PCS Systems set forth on Schedule V hereto.

     "Model Procedures" shall have the meaning set forth in Section 12.8(c).
      ----------------

     "MTA" shall mean a geographic area established by the Rand McNally 1992
      ---
Commercial Atlas & Marketing Guide, 123rd Edition, pp. 38-39, as modified by the
FCC to form the initial geographic area of license for the A and B blocks of
broadband PCS spectrum as defined in Section 24.202 of the FCC's rules.

     "NASD" shall mean the National Association of Securities Dealers, Inc.
      ----

     "NASDAQ" shall mean the National Association of Securities Dealers'
      ------
Automated Quotation System.

     "Network Membership License Agreement" shall mean the Network Membership
      ------------------------------------
License Agreement between the Company and AT&T Corp., dated of even date
herewith, as the same may be amended, modified or supplemented in accordance
with the terms thereof.

     "Northwood" shall mean, collectively, Northwood Ventures LLC, Northwood
      ---------
Capital Partners LLC, and their respective Affiliates.

     "Offer Notice" shall have the meaning set forth in Section 4.2(a).
      ------------

     "Offered Shares" shall have the meaning set forth in Section 4.2(a).
      --------------

     "One Liberty" shall mean, collectively, OneLiberty Fund III, L.P. and
      ----------
OneLiberty Fund IV, L.P. and their respective Affiliates.

     "Overlap Territory" shall mean that portion of the Territory in which a
      -----------------
Person or its Affiliates (other than AT&T PCS and its Affiliates) that is party
to a transaction meeting the description of a transaction set forth in clauses
(a), (b) and (c) of the definition of a Disqualifying Transaction owns an FCC
License to offer Commercial Mobile Radio Services.

     "PCS System" shall mean a mobile communication system constructed and
      ----------
operated in a BTA or a MTA (or any successor territorial designations or
subdivision thereof authorized by the

                                      10
<PAGE>

FCC) exclusively using the 1850 MHZ to 1910 MHZ and 1930 MHZ to 1990 MHZ
frequencies, or portions thereof pursuant to a License therefor issued by the
FCC.

     "PCS Territory" shall mean the territory described on Schedule VI hereto.
      -------------

     "Permitted Cellular License" shall have the meaning assigned to such term
      --------------------------
in Section 7.11(b).

     "Permitted Consolidation Transaction" shall have the meaning set forth in
      -----------------------------------
Section 7.11(a).

     "Permitted Merger Participant" shall mean an AT&T Licensee that (i) owns
      ----------------------------
one or more FCC Licenses to provide Commercial Mobile Radio Services that were
acquired from AT&T PCS or its Affiliates in all or any part of the Knoxville,
TN, Memphis, TN, Little Rock, AR, Detroit, MI, St. Louis, MO, Atlanta, GA,
Boston, MA, Louisville, KY, Nashville, TN, Charlotte, NC, Baltimore/Washington,
Richmond, VA, Houston, TX, El Paso, TX, San Diego, CA and Columbus, OH MTAs and
(ii) on the date of acquisition from AT&T PCS of any such FCC Licenses to
provide Commercial Mobile Radio Service referred to in clause (i) hereof, owned
FCC Licenses covering at least 8 million POPs (or, in the case of El Paso, TX
and San Diego, CA, covering at least 1 million POPs), and in which AT&T PCS or
its Affiliates has not disposed of more than one-half of its original equity
interest therein.

     "Permitted Non-CMRS License" shall have the meaning set forth in Section
      --------------------------
7.11(c).

     "Person" shall mean an individual, corporation, partnership, limited
      ------
liability company, association, joint stock company, Governmental Authority,
business trust or other legal entity.

     "Piggyback Notice" shall have the meaning set forth in Section 5(b)(i).
      ----------------

     "Piggyback Registration" shall have the meaning set forth in Section
      ----------------------
5(b)(i).

     "POPs" shall mean, with respect to any licensed area, the residents of such
      ----
area based on the most recent publication by Equifax Marketing Decision Systems,
Inc.

     "Prohibited Transferee" shall mean any Person that is one of the three
      ---------------------
(excluding any Person excluded from this definition by reason of the proviso
hereto) largest carriers (other than AT&T Corp.) of telecommunications services
that as of the date hereof constitute interexchange services (based on revenue
derived from the provision of such telecommunications services within the entire
United States during the most recent fiscal year for which such information is
available) or an Affiliate thereof; provided, however, that such Person shall
                                    --------  -------
not constitute a Prohibited Transferee if (a) a material portion of such
Person's business is also the business of providing wireless communications
systems, and (b) TDMA is utilized in a substantial majority of such Person's
wireless communications systems.

                                      11
<PAGE>

     "Prospectus" shall have the meaning set forth in Section 5(d)(i).
      ----------

     "Purchase Notice" shall have the meaning set forth in Section 4.2(b).
      ---------------

     "Purchase Right" shall have the meaning set forth in Section 7.2(a).
      --------------

     "Qualified Holder" shall mean (a) any Stockholder or group of Stockholders
      ----------------
that Beneficially Owns (x) for purposes of Section 7.3 and Section 7.8, greater
than 33 1/3% percent of the outstanding shares of Common Stock on a fully
diluted basis (as appropriately adjusted for stock splits, stock dividends and
the like), (y) for purposes of Section 5, shares of Class A Voting Common Stock
reasonably expected to, upon sale, result in aggregate gross proceeds of at
least $25 million, or (b) AT&T PCS and TWR Cellular for so long as AT&T PCS and
TWR Cellular Beneficially Own in the aggregate, greater than two-thirds of the
initial issuance to AT&T PCS and TWR Cellular of shares of Series A Preferred
Stock (as appropriately adjusted for stock splits, stock dividends and the
like).

     "Registrable Securities" shall mean (a) the Class A Voting Common Stock now
      ----------------------
owned or hereafter acquired by any Stockholder or issuable upon conversion or
exchange of any Equity Security, and (b) all Class A Voting Common Stock issued
or issuable upon conversion, exchange or exercise of any Equity Security which
is issued pursuant to a stock split, stock dividend or other similar
distribution or event with respect to Class A Voting Common Stock but with
respect to any Class A Voting Common Stock, only until such time as such Class A
Voting Common Stock (i) has been effectively registered under the Securities Act
and disposed of in accordance with the Registration Statement covering it, (ii)
has been sold to the public pursuant to Rule 144 (or any similar provision then
in force), (iii) shall otherwise have been transferred, a new certificate
evidencing such Class A Voting Common Stock without a legend restricting further
transfer shall have been delivered by the Company, and subsequent public
distribution of such Class A Voting Common Stock shall neither require
registration under the Securities Act nor qualification (or any similar filing)
under any state securities or "blue sky" law then in effect, or (iv) shall have
ceased to be issued and outstanding.

     "Registration" shall have the meaning set forth in Section 5(d).
      ------------

     "Registration Expenses" shall have the meaning set forth in Section 5(g).
      ---------------------

     "Registration Statement" shall have the meaning set forth in Section
      ----------------------
5(d)(i).

     "Regulatory Problem" shall have the meaning assigned to such term in the
      ------------------
Securities Purchase Agreement.

     "Related Agreements" shall mean each of the Network Membership License
      ------------------
Agreement, the Management Agreement, the Employment Agreements, the License
Purchase Agreement, the Resale Agreement and the Roaming Agreement.

                                      12
<PAGE>

     "Representative" shall have the meaning set forth in Section 7.7.
      --------------

     "Resale Agreement" shall mean the Resale Agreement between the Company and
      ----------------
AWS or an Affiliate thereof, dated of even date herewith, as the same may be
amended, modified or supplemented in accordance with the terms thereof.

     "Restated By-Laws" shall mean the Amended and Restated By-Laws of the
      ----------------
Company in the form of Exhibit A, as the same may be amended, modified or
supplemented in accordance with the terms thereof.

     "Restated Certificate" shall mean the Amended and Restated Certificate of
      --------------------
Incorporation of the Company, in the form of Exhibit B, as the same may be
amended, modified or supplemented in accordance with the terms thereof.

     "Roaming Agreement" shall mean the Intercarrier Roamer Service Agreement
      -----------------
between the Company and AWS, dated of even date herewith, as the same may be
amended, modified or supplemented in accordance with the terms thereof.

     "Rule 144" shall mean Rule 144 promulgated under the Securities Act (or any
      --------
similar rule as may be in effect from time to time).

     "Sale Notice" shall have the meaning set forth in Section 7.4(d).
      -----------

     "Sale Offer" shall have the meaning set forth in Section 7.4(d).
      ----------

     "Sale Transaction" shall have the meaning set forth in Section 7.4(c).
      ----------------

     "SBIC" shall have the meaning assigned to such term in the Securities
      ----
Purchase Agreement.

     "SBIC Holder" shall have the meaning assigned to such term in the
      -----------
Securities Purchase Agreement.

     "Section 6.2 Period" shall have the meaning set forth in Section 6.2.
      ------------------

     "Securities Act" shall mean the Securities Act of 1933, as amended.
      --------------

     "Securities Purchase Agreement" shall mean the Securities Purchase
      -----------------------------
Agreement, dated as of January 23, 1998, among the Company and the Stockholders.

     "Seller" shall have the meaning set forth in Section 4.2(a).
      ------

     "Selling Stockholder" shall have the meaning set forth in Section 4.3(a).
      -------------------

                                      13
<PAGE>

     "Senior Common Stock" shall have the meaning set forth in the first
      -------------------
recital.

     "Series A Preferred Directors" shall have the meaning set forth in Section
      ----------------------------
3.1(d).

     "Series A Preferred Stock" shall have the meaning set forth in the first
      ------------------------
recital.

     "Series B Preferred Stock" shall have the meaning set forth in the first
      ------------------------
recital.

     "Series C Preferred Stock" shall have the meaning set forth in the first
      ------------------------
recital.

     "Series D Preferred Stock" shall have the meaning set forth in the first
      ------------------------
recital.

     "Series E Preferred Stock" shall have the meaning set forth in the first
      ------------------------
recital.

     "Series F Preferred Stock" shall have the meaning set forth in the first
      ------------------------
recital.

     "Stockholder" shall have the meaning set forth in the preamble.
      -----------

     "Subject Market" shall mean, with respect to any announcement by AT&T PCS
      --------------
or its Affiliates of a transaction meeting the description of a transaction set
forth in clauses (a), (b) and (c) of the definition of a Disqualifying
Transaction, the PCS System owned and operated by AT&T PCS and its Affiliates in
any of the St. Louis, Missouri, Louisville, Kentucky or Boston, Massachusetts
BTA's.

     "Subsidiary" shall mean, with respect to any Person, a corporation or other
      ----------
entity of which 50% or more of the voting power of the voting equity securities
or equity interests is owned, directly or indirectly, by such Person.

     "Substantial Company Breach" shall mean a material breach by the Company or
      --------------------------
its Subsidiaries of their respective obligations under any of Sections 8.1(a),
8.2, 8.3, or 8.5(a) of this Agreement, if and only if any such material breach
is not cured within 30 days of notice thereof from AT&T PCS to the Company or,
if such breach is not capable of being cured within such thirty (30) day period,
within one-hundred eighty (180) days of such notice, provided the Company is
using best efforts to cure such material breach as soon as reasonably
practicable.

     "Sullivan" means Thomas Sullivan.
      --------

     "Supplemental Closing" shall have the meaning assigned to such term in the
      --------------------
Securities Purchase Agreement.

     "TDMA" shall mean the North American Time Division Multiple Access standard
      ----
set by the Telecommunications Industry Association, IS-54/136, and any standard
that is based upon, or is an upgrade from, or is a successor to, such standard,
if and only if such new or upgraded

                                      14
<PAGE>

standard is (i) adopted by AT&T PCS and its Affiliates in a Majority of the
Central and Southwest Region, (ii) technologically compatible in all material
respects with the standard then being used in a Majority of the United States
(including without limitation for the purpose of facilitating roaming, hand-off
and automatic call delivery between systems), and the User Interface in PCS
Systems using such new or upgraded standard will not differ from the User
Interface in a Majority of the United States in a manner that would be material
to customers, or (iii) is approved in writing by AT&T PCS.

     "TDMA Quality Standards" shall mean the quality standards applicable to
      ----------------------
TDMA PCS Systems and Cellular Systems owned and operated by AT&T PCS and its
Affiliates in the Central and Southwest Region, which, as currently in effect,
are set forth on Schedule VII, as the same may be amended from time to time,
provided any such amended standards shall become effective one hundred twenty
(120) days after notice thereof is given to the Company.

     "TWR Cellular" shall have the meaning set forth in the preamble.
      ------------

     "Telecorp Licenses" shall have the meaning assigned to such term in the
      -----------------
Securities Purchase Agreement.

     "Territory" shall mean the PCS Territory and the Cellular Territory;
      ---------
provided, however, that in the event that, after consummation of a Disqualifying
Transaction, AT&T PCS terminates its and its Affiliates' obligations under
Section 8.6 with respect to any Overlap Territory, the "Territory" shall exclude
the Overlap Territory solely for the purpose of determining the rights and
obligations of AT&T PCS and the Company hereunder.

     "Toronto Dominion" shall mean Toronto Dominion Investments, Inc. and its
      ----------------
Affiliates.

     "Transfer" shall have the meaning set forth in Section 4.1.
      --------

     "Transfer Event" shall have the meaning set forth in Section 7.13.
      --------------

     "Unfunded Commitment" shall have the meaning assigned to such term in the
      -------------------
Securities Purchase Agreement.

     "User Interface" shall mean the process, functional commands, and look and
      --------------
feel by which a mobile wireless telecommunications service subscriber operates
and utilizes the mobile wireless telecommunications services and service
features provided by a PCS System, including the sequence and detail of specific
commands or service codes, the detailed operation and response of subscriber
equipment to the sequence of keys pressed to effect subscriber equipment
function, the response of subscriber equipment to the activation of these keys
or signals or data from the PCS System, the manner in which information is
displayed on the screen of subscriber equipment, and the use of announcement
tones and messages.

     "Vento" means Gerald Vento.
      -----

                                      15
<PAGE>

     "Voting Preference Stock" shall have the meaning set forth in the first
      -----------------------
recital.

Each definition or pronoun herein shall be deemed to refer to the singular,
plural, masculine, feminine or neuter as the context requires. Words such as
"herein," "hereinafter," "hereof," "hereto" and "hereunder" refer to this
Agreement as a whole, unless the context otherwise requires.

     2.  Restated Certificate and Restated By-Laws. The Restated Certificate in
         -----------------------------------------
effect as of the date hereof is in the form of Exhibit B hereto. The Restated
By-Laws of the Company in effect as of the date hereof are in the form of
Exhibit A hereto.

     3.  Management of Company.
         ---------------------

         3.1 Board of Directors. Subject to Section 3.11, the Board of Directors
             ------------------
shall consist of thirteen (13) directors; provided, however, that the number of
                                          --------  -------
directors constituting the Board of Directors shall be reduced in the
circumstances set forth in this Section 3.1.  Each of the Stockholders hereby
agrees that it will vote all of the shares of Class A Voting Common Stock and
Voting Preference Stock Beneficially Owned or held of record by it (whether now
owned or hereafter acquired), in person or by proxy, to cause the election of
directors and thereafter the continuation in office of such directors as
follows:

             (a)  three (3) individuals selected by holders of a Majority in
Interest of the Class A Voting Common Stock Beneficially Owned by the Cash
Equity Investors, in their sole discretion;

             (b) Gerald Vento (so long as he is an officer of the Company and
the Management Agreement shall be in full force and effect);

             (c) Thomas Sullivan (so long as he is an officer of the Company and
the Management Agreement shall be in full force and effect);

             (d) two (2) individuals (the "Series A Preferred Directors")
elected by AT&T PCS in its capacity as holder of Series A Preferred Stock so
long as it and TWR Cellular has the right to elect two directors in accordance
with the Restated Certificate; and

             (e) (i) three (3) individuals selected by the holders of the Voting
Preference Stock, which three (3) individuals shall be reasonably acceptable to
holders of a Majority in Interest of the Class A Voting Common Stock
Beneficially Owned by the Cash Equity Investors, and (ii) three (3) individuals
selected by the holders of the Voting Preference Stock, which three (3)
individuals shall be reasonably acceptable to holders of a Majority in Interest
of the Class A Voting Common Stock Beneficially Owned by the Cash Equity
Investors and AT&T PCS, in the reasonable discretion of such Cash Equity
Investors, on the one hand, and AT&T PCS, on the other hand.

                                      16
<PAGE>

In the event that Mr. Vento or Mr. Sullivan shall cease to be an officer of the
Company, or the Management Agreement shall cease to be in full force and effect,
such individuals shall resign (or the holders of the Voting Preference Stock
shall remove him) from the Board of Directors and the holders of the Voting
Preference Stock shall select a replacement or replacements who shall be
acceptable to a Majority in Interest of the Cash Equity Investors and AT&T PCS
and TWR Cellular, in each case in its sole discretion. In the event that AT&T
PCS shall cease to be entitled to elect the Series A Preferred Directors, such
directors shall resign (or the other directors or Stockholders shall remove
them) from the Board of Directors and the remaining directors shall take such
action so that the number of directors constituting the entire Board of
Directors shall be reduced accordingly. In the event that any Cash Equity
Investor that has an Unfunded Commitment shall fail to satisfy any such portion
of its Unfunded Commitments when due in accordance with Section 2.2 of the
Securities Purchase Agreement or Section 3.10 hereof, and such failure is not
cured by such Cash Equity Investor within thirty five (35) days thereof, then,
until such failure is cured, the member of the Board of Directors who is
designated by, or Affiliated with, such Cash Equity Investor (whether as an
employee, partner, member, stockholder or otherwise) shall resign from the Board
of Directors and the Person(s) who designated such member shall select an
individual acceptable to AT&T PCS in its sole discretion.

          Each of One Liberty, Toronto Dominion and Northwood shall have the
right, so long as it Beneficially Owns at least 5,000 shares of Series C
Preferred Stock and 5,000 shares of Class A Voting Common Stock to designate one
(1) person who shall be entitled to attend the Board of Directors Meeting as an
observer, including meetings during which the Company's annual budget is
discussed and presented. Such observer shall have the right to receive all of
the Board of Directors materials and shall also have the right to meet quarterly
with the management of the Company to consult on the business affairs of the
Company. In addition, so long as AT&T PCS and TWR Cellular have the right to
designate two directors in accordance with the Restated Certificate, up to two
(2) AT&T PCS regional directors (in regions overlapping with or in geographic
proximity to the Territory) shall have the right to attend each meeting of the
Board of Directors as an observer.

          Any nomination or designation of directors and the acceptance thereof
pursuant to Section 3.1 shall be evidenced in writing.

          3.2 Removal; Filling of Vacancies. Except as set forth in Section 3.1,
              -----------------------------
each Stockholder agrees it will not vote any shares of Voting Preference Stock
and/or Class A Voting Common Stock Beneficially Owned by such Stockholder, and
shall not permit any Affiliated Successor of such Stockholder holding any Voting
Preference Stock and/or Class A Voting Common Stock, to vote for the removal
without cause of any director designated by any other Stockholder in accordance
with Section 3.1. Any Stockholder or group of Stockholders who has the right to
designate any member(s) of the Board of Directors shall have the right to
replace any member(s) so designated by it (whether or not such member is removed
from the Board of Directors with or without cause or ceases to be a member of
the Board of Directors by reason of death, disability or for any other reason)
upon written notice to the other Stockholders, the

                                      17
<PAGE>

Company and the members of the Board of Directors which notice shall set forth
the name of the member(s) being replaced and the name of the new member(s);
provided, however, that if a director designated pursuant to (x) Section
- --------  -------
3.1(e)(i) is replaced by the holders of Voting Preference Stock, the individual
designated by the holders of Voting Preference Stock to replace such director
must be acceptable to the Cash Equity Investors in accordance with the terms of
Section 3.1(e)(i), and (y) Section 3.1(e)(ii) is replaced by the holders of
Voting Preference Stock, the individual designated by the holders of Voting
Preference Stock to replace such director must be acceptable to the Cash Equity
Investors and AT&T PCS in accordance with the terms of Section 3.1(e)(ii). Each
of the Stockholders agrees to vote, and to cause its Affiliated Successors to
vote, its shares of Voting Preference Stock and/or Class A Voting Common Stock,
or shall otherwise take any action as is necessary to cause the election of any
successor director designated by any Stockholder pursuant to this Section 3.2.
The holders of the Voting Preference Stock, agree that during the three (3) year
period commencing on the date hereof they will not (i) remove the individuals
nominated by them pursuant to Sections 3.1(e)(i) and 3.1(e)(ii), or (ii)
nominate for election any individuals other than the individuals initially
selected by them and approved in accordance with said Sections 3.1(e)(i) and
(e)(ii), subject to the agreements of such individuals to serve on the Board of
Directors.

          3.3 Initial Directors. In accordance with Section 228 of the Delaware
              -----------------
General Corporation Law and pursuant to the provisions of Section 3.1 of this
Agreement, the Stockholders hereby consent to the election of and do hereby
elect in accordance with Section 3.1 hereof the persons designated in Schedule
VIII hereto as directors of the Company. Such persons shall hold office until
their successors are duly elected and qualified, except as otherwise provided in
this Agreement or the Restated Certificate or the Restated By-Laws.

          3.4 Compensation and Reimbursement. The members of the Board of
              ------------------------------
Directors (other than the directors selected pursuant to Section 3.1(e)(ii))
shall not be compensated for their services as a director or as a member of any
committee of the Board of Directors. The Board of Directors shall determine the
compensation payable, if any, to the directors selected pursuant to Section
3.1(e)(ii) for their services as a director. The Company shall reimburse each
member of the Board of Directors for all out-of-pocket expenses reasonably
incurred by such director in connection with the performance of his service as a
director or as a member of any committee of the Board of Directors.

          3.5 Business of the Company. The business and affairs of the Company
              -----------------------
shall be conducted by the officers of the Company under the supervision of the
Board of Directors, substantially in accordance with operating and capital
expenditure budgets approved by the Board of Directors from time to time. The
Stockholders and the directors hereby approve the five (5) year build-out plan
for the Business and the capital budget for the first two (2) years of the
Business in the forms attached hereto as Schedule IX.

          3.6 Required Votes. (a) All actions of the Board of Directors of the
              --------------
Company shall require the vote of at least a majority of the entire Board of
Directors, unless otherwise required by Law, the Restated Certificate, the
Restated By-Laws or this Agreement.

                                      18
<PAGE>

               (b)    None of the following transactions or actions shall be
     entered into or taken by the Company, unless (i) voted for or consented to
     by the vote of at least three (3) of the five (5) directors designated
     pursuant to Sections 3.1(a) and (d) and six (6) of the eight (8) directors
     designated pursuant to Sections 3.1(b), (c) and (e) of the Board of
     Directors of the Corporation.

               (i)    The sale, transfer, assignment or other disposition of any
          material portion of the assets of the Company or any of its
          Subsidiaries other than in the ordinary course of business;

               (ii)   The merger, combination or consolidation of the Company or
          any of its Subsidiaries with or into any other entity, regardless of
          whether the Company or any such Subsidiary is the surviving entity in
          any such merger, combination or consolidation, the acquisition of any
          businesses by the Corporation, the formation of any partnership or
          joint venture involving the Company, or the liquidation, dissolution
          or winding up of the Company or any of its Subsidiary;

               (iii)  Any offering or issuance of additional shares of Preferred
          Stock, Voting Preference Stock or Common Stock of, or any other
          securities or ownership interests in, the Company or any of its
          Subsidiaries, including, without limitation, warrants, options or
          other rights convertible or exchangeable into Preferred Stock, Voting
          Preference Stock or Common Stock of, or other securities or ownership
          interests in, the Company or any of its Subsidiaries except as
          contemplated by the Securities Purchase Agreement or the declaration
          of any dividends thereon.

               (iv)   The repurchase by the Company of any Company Stock (other
          than shares of Class A Voting Common Stock or Series E Preferred Stock
          purchased from former employees of the Company);

               (v)    The authorization or adoption of any amendment to the
          Restated Certificate, Restated By-laws or any constituent document of
          the Company or any of its Subsidiaries;

               (vi)   The hiring or termination of any executive officer of the
          Company;

               (vii)  The approval of, or amendment to, any operating or capital
          budget of the Company or any of its Subsidiaries;

               (viii) The incurrence by the Company or any of its Subsidiaries,
          whether directly or indirectly, of any indebtedness for borrowed money
          or capital leases in any calendar quarter in excess of $1,000,000;

               (ix)   Any agreement or arrangement, written or oral, to pay any
          director, officer, agent or employee of the Company or any of its
          Subsidiaries $200,000 or more

                                      19
<PAGE>

     on an annual basis or any loan, lease, contract or other transaction with
     any employee of the Company or any of its Subsidiaries with an annual
     salary in excess of $200,000 or with any director or officer of the Company
     or any member of any such Person's Immediate Family;

               (x)   The making of, or commitment to make, any capital
     expenditures involving a payment or liability in any one year of $1,000,000
     or more in the aggregate by the Company or any of its Subsidiaries;

               (xi)  The initiation of any bankruptcy proceeding, dissolution or
     liquidation of the Company or any of its Subsidiaries; and

               (xii) The entering into any contract, agreement or understanding
to do any of the foregoing.

     Notwithstanding the foregoing, any amendment, modification, waiver or
termination of the Management Agreement shall require the affirmative vote or
consent of a majority of the Board of Directors (excluding Messrs. Vento and
Sullivan).

          3.7  Transactions between the Company and the Stockholders or their
               --------------------------------------------------------------
Affiliates. Except for this Agreement, the Securities Purchase Agreement and the
- ----------
Related Agreements and the transactions contemplated hereby and thereby and any
other arms-length agreements or transactions entered into from time to time
between the Company and its Subsidiaries, on the one-hand, and AT&T PCS and its
Affiliates, on the other hand, no Stockholder or any Affiliate of any
Stockholder shall enter into any transaction with the Company or any Subsidiary
of the Company unless such transaction is approved by a majority of the
disinterested members of the Board of Directors. For purposes hereof, a director
shall be deemed to be disinterested with respect to any such transaction if such
director was not designated a director by the Stockholder that (or an Affiliate
of which) proposed to engage in such transaction with the Company or any
Subsidiary of the Company and such member is not an officer, director, partner,
employee, stockholder of, or consultant to, such Stockholder or any of its
Affiliates; provided, however, that for purposes of this Section 3.7 the
            --------  -------
directors designated pursuant to Sections 3.1(e)(ii) and 3.11(a)(ii) shall not
be deemed to have been designated by the Cash Equity Investors, AT&T PCS or the
holders of the Voting Preference Stock.

          3.8  Board Committees. An executive committee of the Board of
               ----------------
Directors (or a committee of the Board of Directors having substantially the
same mandate and powers of such a committee) shall be established, which
committee shall be comprised of five (5) individuals as follows: one (1) of the
Series A Preferred Directors, one of the directors selected by the Cash Equity
Investors pursuant to Section 3.1(a), Mr. Vento (so long as he is an officer of
the Company), one (1) of the directors selected pursuant to Section 3.1(e)(i)
and one (1) of the directors selected pursuant to Section 3.1(e)(ii).

                                      20
<PAGE>

          3.9  Voting Agreements and Voting Trusts. Except as disclosed on
               -----------------------------------
Schedule X or referred to in this Section 3.9, each Stockholder agrees that it
will not, directly or indirectly, deposit any of his or its shares of Series C
Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Voting
Preference Stock and/or Common Stock in a voting trust or other similar
arrangement or, except as expressly provided herein, subject such shares to a
voting agreement or other similar arrangements. Each of AT&T PCS and TWR
Cellular covenants and agrees that it will not, directly or indirectly, enter
into a voting or similar agreement with any Transferee of shares of Series A
Preferred Stock. Each holder of Voting Preference Stock shall vote all shares of
Voting Preference Stock owned by him in accordance with the vote of holders of a
majority of the shares of Voting Preference Stock.

          3.10 Additional Capital Contributions. In accordance with the
               --------------------------------
Securities Purchase Agreement, the Cash Equity Investors shall contribute to the
capital of the Company an aggregate additional amount equal to their Unfunded
Commitments, such contributions to be made by the Cash Equity Investors in the
amounts and on the dates specified on Schedule I thereto. In the event that the
Board of Directors determines in good faith that the Company requires all or any
portion of the Unfunded Commitment prior to the dates specified on such
Schedule, then upon notice given by the Company to the Cash Equity Investors,
the Cash Equity Investors shall contribute, pro rata in accordance with their
ownership of Series C Preferred Stock on the date hereof, the additional capital
set forth in such notice up to the amount, in the case of each such Cash Equity
Investor, of its Unfunded Commitment. Any such additional capital required to be
contributed by the Cash Equity Investors shall be contributed by the Cash Equity
Investors within twenty (20) business days of receipt of written notice from the
Company.

          3.11 Board of Directors After Voting Preference Stock. Effective on
               ------------------------------------------------
the later to occur of (x) the date that holders of shares of Voting Preference
Stock shall vote as a class with holders of Class A Voting Common Stock, and (y)
immediately prior to the IPO Date, the Board of Directors shall consist of seven
(7) directors, each of the Stockholders hereby agrees that it will vote all of
the shares Class A Voting Common Stock and Voting Preference Stock owned or held
of record by it (whether now owned or hereafter acquired), in person or by
proxy, to cause the election of directors as follows:

               (a) (i) two (2) individuals selected by holders of a Majority in
Interest of the Common Stock Beneficially Owned by the Cash Equity Investors, in
their sole discretion and (ii) two (2) additional individuals selected by
holders of a Majority in Interest of the Common Stock held by the Cash Equity
Investors, which two (2) additional individuals shall be acceptable to Vento and
Sullivan (in each case so long as he is an officer of the Company) and AT&T PCS,
in the discretion of Vento and Sullivan, on the one hand, and AT&T PCS, on the
other hand;

               (b) Two (2) individuals employed by the Company and selected by
Vento and Sullivan (in each case so long as Vento and Sullivan are officers of
the Company), one of whom shall be acceptable to holders of a Majority in
Interest of the Class A Voting Common Stock Beneficially Owned by the Cash
Equity Investors and AT&T PCS, in the

                                      21
<PAGE>

reasonable discretion of such Cash Equity Investors, on the one hand, and AT&T
PCS on the other hand; and

               (c) One (1) individual elected by AT&T PCS in its capacity as
holder of Series A Preferred Stock so long as it has the right to elect one
director in accordance with the Restated Certificate.

In the event that an individual selected by Vento and Sullivan pursuant to
paragraph (b) above shall cease to be an officer of the Company, such individual
shall resign (or the other directors or Stockholders shall remove him) from the
Board of Directors and the Board of Directors shall select a replacement from
the executives of the Company who shall be reasonably acceptable to a Majority
in Interest of the Cash Equity Investors, on the one hand, and AT&T PCS on the
other hand, in each case in its sole discretion. In the event that AT&T PCS and
TWR Cellular shall cease to be entitled to elect one (1) Series A Preferred
Director, such director shall resign (or the other directors or Stockholders
shall remove him) from the Board of Directors and the remaining directors shall
take such action so that the number of directors constituting the entire Board
of Directors shall be reduced accordingly.

     4.   Transfers of Shares.
          -------------------

          4.1  General.
               -------

               (a) Each Stockholder agrees that at all times prior to the IPO
Date it shall not, directly or indirectly, transfer, sell, assign, pledge,
tender or otherwise grant, create or suffer to exist a Lien in or upon, give,
place in trust, or otherwise voluntarily or involuntarily (including transfers
by testamentary or intestate succession) dispose of by operation of law, offer
or otherwise (any such action being referred to herein as a "Transfer"), any of
the shares of Company Stock Beneficially Owned by such Stockholder as of the
date hereof or which may hereafter be acquired by such Stockholder, except that
(i) a Stockholder may Transfer shares of Common Stock to an Affiliated
Successor, (ii) a Stockholder may Transfer shares of Common Stock to any other
Person after complying first with Section 4.2 and next with Section 4.3, if
applicable, (iii) a Cash Equity Investor may Transfer shares of Common Stock to
another Cash Equity Investor, (iv) one or more Cash Equity Investors may
Transfer up to 1,000 shares (in the aggregate for all Cash Equity Investors) of
Class A Common Stock to the Management Stockholders, or (v) a Management
Stockholder may Transfer shares of Class C Common Stock and Series E Preferred
Stock to the Company.

               (b) Each Stockholder agrees that at all times on and after the
IPO Date it shall not, directly or indirectly, Transfer any of the shares of
Common Stock Beneficially Owned by such Stockholder as of the date hereof or
which may hereafter be acquired by such Stockholder except that (i) a Management
Stockholder may Transfer shares of Class C Common Stock and Series E Preferred
Stock to the Company, (ii) a Cash Equity Investor may Transfer shares of Common
Stock to another Cash Equity Investor, and (iii) a Stockholder may Transfer (x)
shares of Common Stock to an Affiliated Successor, and (y) shares of Common
Stock after

                                      22
<PAGE>

complying first with Section 4.2 and next with Section 4.3, if applicable,
provided, however, a Stockholder shall not be required to comply with Section
- --------  -------
4.2 if such Stockholder first complies with the applicable provisions of Section
4.4 in connection with Transfers of Common Stock (1) pursuant to a Registration
of Common Stock under Section 5 which is an underwritten offering and
constitutes a bona fide distribution of such Common Stock pursuant to such
Registration, (2) pursuant to Rule 144, or (3) in any single transaction or
series of related transactions to one or more Persons which results in the
Transfer by such Stockholder (together with any other Stockholder participating
in such single transaction or series of related transactions) of not more than
ten percent (10%) of the Common Stock on a fully diluted basis (excluding for
such purposes the Series A Preferred Stock).

          (c) Notwithstanding anything to the contrary contained in Sections
4.1(a) or (b), prior to the (i) third anniversary of the date hereof, each
Stockholder (other than the Management Stockholders) agrees that it will not
Transfer any shares of Common Stock Beneficially Owned by it as of the date
hereof or which may hereafter be acquired by it to any Person other than an
Affiliated Successor, and (ii) fifth anniversary of the date hereof, each
Management Stockholder agrees that it will not Transfer any shares of Common
Stock Beneficially Owned by it as of the date hereof or which may hereafter be
acquired by it to any Person; provided, however, that (x) on or after the later
                              --------  -------
to occur of (I) the third anniversary of the date hereof, and (II) the IPO Date,
a Management Stockholder may Transfer up to 25% of the shares of Common Stock
held by such Management Stockholder on the date hereof plus any shares of Class
A Common Stock or Series C Preferred Shares purchased from a Cash Equity
Investor which shares may be Transferred notwithstanding the foregoing, and (y)
in the event the Management Agreement is terminated on or after the later to
occur of (I) the date that the Management Stockholders shall have performed all
of their obligations pursuant to Section 5(f) of the Management Agreement, and
(II) the third anniversary of the date hereof, a Management Stockholder may
Transfer all shares of Class A Common Stock held by such Management Stockholder
free of any restrictions imposed on any such Transfer by this Section 4.1(c). In
addition, notwithstanding anything to the contrary contained herein, the
Management Stockholders shall not Transfer any shares of Class A Common Stock
that shall not have vested in accordance with the terms of the Management
Agreement or any Employment Agreement between the Company and such Management
Stockholder.

          (d) Prior to the IPO Date, each Stockholder agrees that it will not
Transfer any shares of Preferred Stock held by it except (i) to an Affiliated
Successor, (ii) that Cash Equity Investors may Transfer shares of Preferred
Stock to another Cash Equity Investor and one or more Cash Equity Investors may
Transfer up to 1,000 shares (in the aggregate for all Cash Equity Investors) of
Series C Preferred Stock to the Management Stockholders or (iii) to any other
Person after complying with Section 4.2; it being understood that on and after
the IPO Date, each Stockholder may Transfer its shares of Preferred Stock free
from any restrictions on Transfer of such shares under this Agreement. In
addition, notwithstanding anything to the contrary contained herein, the
Management Stockholders shall not Transfer any shares of Series E Preferred
Stock that shall not have vested in accordance with the terms of the Management

                                      23
<PAGE>

Agreement or any Employment Agreement between the Company and such Management
Stockholder.

               (e) (i) Each of the holders of Class C Common Stock and Voting
Preference Stock agrees that it shall not Transfer any of the shares of Class C
Common Stock or Voting Preference Stock Beneficially Owned by it other than
pursuant to Section 5(f) of the Management Agreement.

               (ii) Prior to the IPO Date, each Stockholder agrees that it will
not Transfer any shares of Class D Common Stock held by it except (I) to an
Affiliated Successor, (II) that Cash Equity Investors may Transfer shares of
Class D Common Stock to another Cash Equity Investor, or (III) to any other
Person after complying with Section 4.2; it being understood that on and after
the IPO Date, each Stockholder may Transfer its shares of Class D Common Stock
free from any restrictions under this Section 4.1(e) on Transfer of such shares
under this Agreement. Notwithstanding anything to the contrary contained in this
Agreement, each Stockholder agrees that it will not effect a Transfer of shares
of Class D Common Stock to any Person if after giving effect to such Transfer,
such Person, together with its Affiliates would Beneficially Own 25% or more of
all of the issued and outstanding shares of Class D Common Stock.

               (f) Notwithstanding anything to the contrary contained in this
Section 4, (i) Section 4.1 shall not apply to the pledge by certain of the Cash
Equity Investors of the Class C Preferred Stock and Common Stock as security for
their Unfunded Commitments pursuant to a pledge agreement in favor of the
Company or to any Transfer of shares of Class C Preferred Stock or Common Stock
in connection with the exercise by the Company of its remedies pursuant to any
such pledge agreement, and (ii) a Cash Equity Investor that is a SBIC Holder
that is required to dispose of its investment in the Company by reason of a
breach by the Company of Section 6.6(d) of the Securities Purchase Agreement or
a Regulatory Problem, may Transfer its shares of Class C Preferred Stock or
Common Stock without complying with the terms of Section 4.3.

          4.2  Right of First Offer.
               --------------------

               (a) If a Stockholder (each a "Seller") desires to Transfer any or
all of its shares of Preferred Stock or Common Stock (other than Voting
Preference Stock and Class C Common Stock which may only be transferred in
accordance with Section 4.1(e)(i) collectively, the "Offered Shares"), such
Seller shall give written notice (the "Offer Notice") to the Company and to each
Stockholder entitled to become the First Offeree of such Offered Shares, as
determined below. Each Offer Notice shall describe in reasonable detail the
number of shares of each class of Offered Shares, the cash purchase price
requested and all other material terms and conditions of the proposed Transfer.
The Offer Notice shall constitute an irrevocable offer (a "First Offer") to sell
all (and not less than all) of the Offered Shares to the First Offeree(s) at a
cash price equal to the price contained in such Offer Notice and upon the same
terms as the terms contained in such Offer Notice. The First Offeree(s) shall
have the irrevocable right and

                                      24
<PAGE>

option, exercisable as provided below, but not the obligation, to accept the
First Offer as to all (and not less than all) of the Offered Shares. The "First
Offeree(s)" shall be determined as follows:

          (i)   If the Seller is a Cash Equity Investor, AT&T PCS shall be First
     Offeree;

          (ii)  If the Seller is AT&T PCS or TWR Cellular, each Cash Equity
     Investor shall be the First Offeree; and

          (iii) If the Seller is any Stockholder other than a Cash Equity
     Investor, AT&T PCS shall be the First Offeree.

          (b)   The option provided for herein shall be exercisable by the First
Offeree(s) by giving written notice (a "Purchase Notice"), that the First
Offeree desires to purchase all (and not less than all) of such Offered Shares
from the Seller, to the Stockholders (other than the Seller) and the Company not
later than ten (10) business days (the "First Offer Period") after the date of
the Offer Notice. If the Cash Equity Investors are First Offerees and two or
more Cash Equity Investors notify the Seller of their desire to purchase all of
the Offered Shares, then each Cash Equity Investor shall acquire the proportion
of such Offered Shares as the number of shares of Company Stock owned by such
Cash Equity Investor bears to the total number of shares of Company Stock owned
by all Cash Equity Investors who elected to purchase all of the Offered Shares.
If Offered Shares are purchased by more than one purchaser, the purchase price
shall be allocated among the parties purchasing the shares on the basis of the
number of shares being so purchased. The purchase of the Offered Shares by the
First Offeree(s) shall be closed at the principal executive offices of the
Company on a date specified by the First Offeree(s) upon at least five (5)
business days' notice, that is within thirty (30) days after the expiration of
the First Offer Period; provided, however, that if such purchase is subject to
                        --------  -------
the consent of the FCC or any public service or public utilities commission, the
purchase of the Offered Shares shall be closed on the first business day after
all such consents shall have been obtained by Final Order.

          (c) If the First Offeree(s) decline (which shall include the failure
to give timely notice of acceptance) to purchase all of the Offered Shares
subject to the First Offer within the First Offer Period, the Seller shall have
the right (for a period of ninety (90) days following the expiration of the
First Offer Period) to consummate the sale of the Offered Shares to any Person;
provided, however, that the purchase price of such Offered Shares payable by
- --------  -------
such Person must be at least equal to the cash purchase price thereof set forth
in the Offer Notice and all other terms and conditions of any such sale shall
not be more beneficial to such third party than those contained in the Offer
Notice. If any Offered Shares are not sold pursuant to the provisions of this
Section 4.2 prior to the expiration of the ninety (90) day period specified in
the immediately preceding sentence, such Offered Shares shall become subject
once again to the provisions and restrictions hereof; provided, however, that if
                                                      --------  -------
such purchase is subject to the consent of the FCC or any public service or
public utilities commission, the purchase of the

                                      25
<PAGE>

Offered Shares shall be closed on the first business day after all such consents
shall have been obtained by Final Order.

               (d) The purchase price of any Offered Shares Transferred pursuant
to this Section 4.2 shall be payable in cash by certified bank check or by wire
transfer of immediately available funds.

               (e) The provisions of this Section 4.2 shall not be applicable to
the repurchase by the Company of any shares of Class A Voting Common Stock or
Class E Preferred Stock repurchased by the Company from an employee of the
Company in connection with such individual's termination of employment.

          4.3  Rights of Inclusion.
               -------------------

          (a)  No Stockholder shall, directly or indirectly, Transfer, in any
single transaction or series of related transactions to one or more Persons who
are not Affiliated Successors of such Stockholder (each such Person an
"Inclusion Event Purchaser") shares of any series or class of Company Stock
(collectively, "Inclusion Stock") in circumstances in which, after giving effect
to such Transfer, whether acting alone or in concert with any other Stockholder
(such parties referred to herein as "Selling Stockholders") would result in such
Selling Stockholder(s) Transferring twenty-five percent (25%) or more of the
outstanding shares of any such class of Inclusion Stock (for purposes of this
Section 4.3, in the event that the Inclusion Stock is Series C Preferred Stock,
Series D Preferred Stock shall also be deemed to be Inclusion Stock and the
Series C Preferred Stock and Series D Preferred Stock shall be deemed to be one
class of Preferred Stock for purposes of this Section 4.3) outstanding on the
date of such proposed Transfer on a fully diluted basis (excluding for such
purposes the Series A Preferred Stock) (an "Inclusion Event"), unless the terms
and conditions of such sale to such Inclusion Event Purchaser shall include an
offer to AT&T PCS, the Cash Equity Investors and the Management Stockholders
other than the Selling Stockholder (each, an "Inclusion Event Offeree") to
Transfer to such Inclusion Event Purchasers up to that number of shares of any
class of Inclusion Stock then Beneficially Owned by each Inclusion Event Offeree
that bears the same proportion to the total number of shares of Inclusion Stock
at that time Beneficially Owned (without duplication) by each such Inclusion
Event Offeree as the number of shares of Inclusion Stock being Transferred by
the Selling Stockholders (including shares of Inclusion Stock theretofore
Transferred if in any applicable series of related transactions) bears to the
total number of shares of Inclusion Stock at the time Beneficially Owned
(without duplication) by the Selling Stockholders (including shares of Inclusion
Stock theretofore Transferred if in any applicable series of related
transactions). If the Selling Stockholders receive a bona fide offer from an
Inclusion Event Purchaser to purchase shares of Inclusion Stock in circumstances
in which, after giving effect to such sale would result in an Inclusion Event,
and which offer such Selling Stockholders wish to accept, the Selling
Stockholders shall then cause the Inclusion Event Purchaser's offer to be
reduced to writing (which writing shall include an offer to purchase shares of
Inclusion Stock from each Inclusion Event Offeree according to the terms and
conditions set forth in this Section 4.3) and the Selling Stockholders shall
send written

                                      26
<PAGE>

notice of the Inclusion Event Purchaser's offer (the "Inclusion Notice") to each
Inclusion Event Offeree, which Inclusion Notice shall specify (i) the names of
the Selling Stockholders, (ii) the names and addresses of the proposed acquiring
Person, (iii) the amount of shares proposed to be Transferred and the price,
form of consideration and other terms and conditions of such Transfer
(including, if in a series of related transactions, such information with
respect to shares of Inclusion Stock theretofore Transferred), (iv) that the
acquiring Person has been informed of the rights provided for in this Section
4.3 and has agreed to purchase shares of Inclusion Stock in accordance with the
terms hereof, and (v) the date by which each other Selling Stockholder may
exercise its respective rights contained in this Section 4.3, which date shall
not be less than thirty (30) days after the giving of the Inclusion Notice. The
Inclusion Notice shall be accompanied by a true and correct copy of the
Inclusion Event Purchaser's offer. At any time within thirty (30) days after
receipt of the Inclusion Notice, each Inclusion Event Offeree may accept the
offer included in the Inclusion Notice for up to such number of shares of
Inclusion Stock as is determined in accordance with this Section 4.3, by
furnishing written notice of such acceptance to each Selling Stockholder, and
delivering, to an escrow agent (which shall be a bank or a law or accounting
firm designated by the Company), on behalf of the Selling Stockholders, the
certificate or certificates representing the shares of Inclusion Stock to be
sold pursuant to such offer by each Inclusion Event Offeree, duly endorsed in
blank, together with a limited power-of-attorney authorizing the escrow agent,
on behalf of the Inclusion Event Offeree, to sell the shares to be sold pursuant
to the terms of such Inclusion Event Purchaser's offer.

          In the event that the Inclusion Event Purchaser does not agree to
purchase all of the shares of Inclusion Stock proposed to be sold by the Selling
Stockholders and the Inclusion Event Offerees, then each Selling Stockholder and
Inclusion Event Offeree shall have the right to sell to the Inclusion Event
Purchaser that number of shares of Inclusion Stock as shall be equal to (x) the
number of shares of Inclusion Stock which the Inclusion Event Purchaser has
agreed to purchase times (y) a fraction, the numerator of which is the number of
shares of Inclusion Stock Beneficially Owned (without duplication) by such
Selling Stockholder or Inclusion Event Offeree and the denominator of which is
the aggregate number of shares of Inclusion Stock Beneficially Owned (without
duplication) by all Selling Stockholders and Inclusion Event Offerees. If any
Inclusion Event Offeree desires to sell less than its proportionate amount of
shares of Inclusion Stock that it is entitled to sell pursuant to this Section
4.3, then the Selling Stockholders and the remaining Inclusion Event Offerees
shall have the right to sell to the Inclusion Event Purchaser an additional
amount of shares of Inclusion Stock as shall be equal to (x) the number of
shares of Inclusion Stock not being sold by any such Inclusion Event Purchasers
times (y) a fraction, the numerator of which is the number of shares of
Inclusion Stock owned such Selling Stockholder or remaining Inclusion Event
Offeree and the denominator of which is the aggregate number of shares of
Inclusion Stock Beneficially Owned (without duplication) by all Selling
Stockholders and remaining Inclusion Event Offerees. Such process shall be
repeated in series until all of the remaining Inclusion Event Offerees agree to
sell their remaining proportionate number of shares of Inclusion Stock.

          (b) The purchase from each Inclusion Event Offeree pursuant to this
Section 4.3 shall be on the same terms and conditions, including the price per
share received by the

                                      27
<PAGE>

Selling Stockholders and stated in the Inclusion Notice provided to each
Inclusion Event Offeree. In the event that the Inclusion Stock is Common Stock,
all Inclusion Event Offerees shall be required, as a condition of participating
in such transaction, to convert its Preferred Stock into Common Stock and
Transfer Common Stock to the Inclusion Event Purchaser. In the event that the
Inclusion Stock is Series C Preferred Stock and after giving effect to the
rights of the Inclusion Event Offerees to sell their pro rata share of Series C
Preferred Stock or Common Stock pursuant to this Section 4.3 the Inclusion Event
Purchaser shall be required to purchase both Series C Preferred Stock and Common
Stock, the purchase price allocable to holders of Series C Preferred Stock, on
the one hand, and to holders of Common Stock, on the other hand, shall be
determined by an independent committee of the Board of Directors selected from
among those directors who were not designated by any Selling Stockholders or
Inclusion Event Offerees, it being understood that the directors selected
pursuant to Sections 3.1(e)(ii) and 3.11(a)(ii) shall be deemed independent for
such purposes.

          (c) Simultaneously with the consummation of the sale of the shares of
Inclusion Stock of the Selling Stockholders and each Inclusion Event Offeree to
the Inclusion Event Purchaser pursuant to the Inclusion Event Purchaser's offer,
the Selling Stockholders shall notify each Inclusion Event Offeree and shall
cause the purchaser to remit to each Inclusion Event Offeree the total sales
price of the shares of Inclusion Stock held by each Inclusion Event Offeree sold
pursuant thereto and shall furnish such other evidence of the completion and
time of completion of such sale and the terms thereof as may be reasonably
requested by each Inclusion Event Offeree.

          (d) If within thirty (30) days after receipt of the Inclusion Notice,
an Inclusion Event Offeree has not accepted the offer contained in the Inclusion
Notice, such Inclusion Event Offeree shall be deemed to have waived any and all
rights with respect to the sale described in the Inclusion Notice (but not with
respect to any subsequent sale, to the extent this Section 4.3 is applicable to
such subsequent sale) and the Selling Stockholders shall have sixty (60) days in
which to sell not more than the number of shares of Inclusion Stock described in
the Inclusion Notice, on terms not more favorable to the Selling Stockholders
than were set forth in the Inclusion Notice; provided, however, that if such
                                             --------  -------
purchase is subject to the consent of the FCC or any public service or public
utilities commission, the purchase of the Offered Shares shall be closed on the
first business day after all such consents shall have been obtained by Final
Order.

     4.4  Right of First Negotiation. In the event that a Stockholder desires to
          --------------------------
Transfer any shares of Common Stock following the IPO Date in a Transfer
described in clause (y) of Section 4.1(b)(iii), such Stockholder shall give
written notice thereof to AT&T PCS, such notice to specify, among other things,
the number of shares that such Stockholder desires to sell. For the applicable
first negotiation period hereinafter set forth, AT&T PCS shall have the
exclusive right to negotiate with such Stockholder with respect to the purchase
of such shares; it being understood and agreed that such exclusive right shall
not be deemed to be a right of first offer or right of first refusal for the
benefit of AT&T PCS and such Stockholder shall have the right to reject any
offer made by AT&T PCS during such applicable first negotiation period. Upon the
expiration of such applicable first negotiation period, such Stockholder shall
have the right (for

                                      28
<PAGE>

the applicable offer period hereinafter set forth with respect to each
applicable first negotiation period), following the expiration of such
applicable first negotiation period, to offer and sell such shares included in
such written notice on such terms and conditions as shall be acceptable to such
Stockholder in its sole discretion. If any of such shares included in such
written notice are not sold pursuant to the provisions of this Section 4.4 prior
to the expiration of the applicable offer period, such shares shall become
subject once again to the provision and restrictions hereof.

     If a Stockholder desires to Transfer shares of Common Stock (a) pursuant to
a Registration of Common Stock under Section 5 in an underwritten offering that
constitutes a bona fide distribution of such Common Stock pursuant to such
Registration, the applicable first negotiation period shall be ten (10) days and
the applicable offer period upon the expiration of such first negotiation period
shall be one hundred twenty (120) days, (b) pursuant to Rule 144, the applicable
first negotiation period shall be three (3) hours (it being understood and
agreed that such Stockholder shall, in addition to giving written notice of such
proposed Transfer by facsimile, use commercially reasonable efforts to contact
AT&T PCS by telephone in accordance with Section 12.1) and the applicable offer
period upon the expiration of such first negotiation period shall be five (5)
business days, and (c) in any single transaction or series of related
transactions to one or more Persons which will result in the Transfer by such
Stockholder (together with any other Stockholder participating in such single
transaction or series of related transactions) of not more than ten percent
(10%) of the Common Stock on a fully diluted basis (excluding for such purposes
the Series A Preferred Stock), the applicable first negotiation period shall be
one (1) business day, so long as notice of such proposed Transfer is given to
AT&T PCS prior to 9:00 A.M. on the day prior to the date of such proposed
Transfer (it being understood and agreed that such Stockholder shall, in
addition to giving written notice of such proposed Transfer by facsimile, use
commercially reasonable efforts to contact AT&T PCS by telephone in accordance
with Section 12.1) and the applicable offer period upon the expiration of such
first negotiation period shall be ten (10) business days.

     4.5  Additional Conditions to Permitted Transfers.
          --------------------------------------------

          (a) As a condition to any Transfer to an Affiliated Successor
permitted pursuant to Section 4.1, or any Transfer pursuant to Section 4.2 or
Section 4.3, each transferee that is not a party hereto shall, prior to such
Transfer, agree in writing to be bound by all of the provisions of this
Agreement applicable to the Stockholders (and shall thereby become a Stockholder
for all purposes of this Agreement). Any Transfer without compliance with such
provisions of this Agreement shall be null and void and such transferee shall
have no rights as a Stockholder of the Company.

          (b) Notwithstanding anything to the contrary contained in this
Agreement, each Stockholder agrees that it will not effect a Transfer of shares
of Company Stock to a Prohibited Transferee; provided, however, that nothing
contained in this Section 4.5(b) shall be construed to prohibit a Transfer of
Common Stock by a Stockholder after the IPO Date pursuant to an underwritten
Registration or in accordance with the provisions of Rule 144. It shall be
deemed a breach of this Section 4.5(b) by a Stockholder Beneficially Owning more
than 10% of

                                      29
<PAGE>

the Common Stock outstanding if any Prohibited Transferee shall acquire,
directly or indirectly, in a private sale Beneficial Ownership of more than 33-
1/3% of any class of equity securities or equity interest in, such Stockholder.

          (c) Subject to Sections 4.1 and 4.2, prior to the IPO Date, the Cash
Equity Investors, AT&T PCS and TWR Cellular may not Transfer shares of Common
Stock to any Person that is not an Affiliated Successor of such Stockholder or
another Cash Equity Investor unless after giving effect to such Transfer each of
such Stockholder and such Person shall after giving effect to such Transfer
Beneficially Own more than the lesser of (x) five percent (5%) of the Common
Stock, and (y) one-half of the Common Stock Beneficially Owned by the transferor
on the date hereof, upon such Transfer unless the Transfer by such Cash Equity
Investor, AT&T PCS or TWR Cellular is a Transfer of all of the shares of Common
Stock, as applicable, Beneficially Owned by it. Subject to Sections 4.1 and 4.2,
prior to the IPO Date, no Management Stockholder may effect more than one (1)
Transfer of its shares of Common Stock to a Person that is not an Affiliated
Successor of such Management Stockholder during any twelve (12) month period.

     4.6  Representations and Warranties. A Stockholder purchasing shares of
          ------------------------------
Company Stock pursuant to Section 4.2 shall be entitled to receive
representations and warranties from the transferring Stockholder that such
Stockholder has the authority (corporate or otherwise) to sell such shares, is
the sole owner of such shares, and has good and valid title to such shares, free
and clear of any and all Liens (other than pursuant to this Agreement, the
Restated Certificate or any Related Agreement), and that the sale of such shares
does not violate any agreement to which it is a party or by which it is bound.

     4.7  Stop-Transfer.
          -------------

          (a) The Company agrees not to effect any Transfer of shares of Company
Stock by any Stockholder whose proposed Transfer is subject to Sections 4.2, 4.3
or 4.4 until it has received evidence reasonably satisfactory to it that the
rights provided to any other Stockholders pursuant to such Sections, if
applicable to such Transfer, have been complied with and satisfied in all
respects. If any portion of such Stockholder's Unfunded Commitment shall remain
unpaid on the date of such proposed Transfer, then, as a condition of such
Transfer, such Person purchasing such Company Stock shall, or another Cash
Equity Investor may, execute an instrument in form satisfactory to the Company
agreeing to pay in full such Stockholder's Unfunded Commitment outstanding on
the date of such proposed Transfer, provided, however, that such Stockholder
                                    --------  -------
shall not be released from its obligation in respect of such Unfunded
Commitment. No Transfer of any shares of Preferred Stock and/or Common Stock
shall be made except in compliance with all applicable securities laws. Any
Transfer made in violation of this Agreement shall be null and void.

          (b) The Company agrees that it will not, without the prior written
consent of AT&T PCS, Transfer, issue or dispose of any Equity Securities to a
Prohibited Transferee except

                                      30
<PAGE>

that purchases of Common Stock by a Prohibited Transferee in connection with a
Registration of Common Stock shall not constitute a violation of this Section
4.7(b).

     5.   Registration Rights.
          -------------------

          (a)  Demand Registration Rights.
               --------------------------

               (i) Right to Demand Registration. From and after the ninety-first
                   ----------------------------
(91st) day following the IPO Date (or such longer period as may be required by
the managing underwriters of the Company's initial public offering) and, subject
to Section 4.1(d), each of (A) a Qualified Holder, and (B) Management
Stockholders that in the aggregate Beneficially Own at least 50.1% of the shares
of Class A Voting Common Stock then Beneficially Owned by the Management
Stockholders (each a "Demanding Stockholder" and, collectively, the "Demanding
Stockholders") shall have the right to make a written request to the Company for
registration with the Commission, under and in accordance with the provisions of
the Securities Act, of all or part of their Registrable Securities pursuant to
an underwritten offering (a "Demand Registration"), which request shall specify
the number of Registrable Securities proposed to be sold by each Demanding
Stockholder; provided, however, that (x) the Company need not effect a Demand
             --------  -------
Registration unless in the aggregate the sale of the Registrable Securities
proposed to be sold by the Demanding Stockholder shall reasonably be expected to
result in aggregate gross proceeds to such Demanding Stockholder of at least $10
million, and (y) if the Board of Directors determines that a Demand Registration
would interfere with any pending or contemplated material acquisition,
disposition, financing or other material transaction, the Company may defer a
Demand Registration (including by withdrawing any Registration Statement filed
in connection with a Demand Registration); so long as that the aggregate of all
such deferrals shall not exceed one hundred twenty (120) days in any 360-day
period. Demand Registration shall not be deemed a Demand Registration hereunder
until such Demand Registration has been declared effective by the Commission
(without interference by any stop order, injunction or other order or
requirement of the Commission or other governmental agency, for any reason), and
maintained continuously effective for a period of at least three (3) months or
such shorter period when all Registrable Securities included therein have been
sold in accordance with such Demand Registration; provided, however, that a
                                                  --------  -------
Qualified Holder may, not more frequently than once in any twelve (12) month
period, request that the Demand Registration be a shelf registration that is
maintained continuously effective for a period of at least six (6) months or
such shorter period when all Registrable Securities included therein have been
sold in accordance with such Demand Registration. A Demanding Stockholder may
make a written request for a Demand Registration in accordance with the
foregoing in respect of Equity Securities that it intends to convert into shares
of Class A Voting Common Stock upon the effectiveness of the Registration
Statement prepared in connection with such demand, and the Company shall fulfill
its obligations under this Section 5 in a manner that permits such Demanding
Stockholder to exercise its conversion rights in respect of such Equity
Securities and substantially contemporaneously sell the shares of Class A Voting
Common Stock issuable upon such conversion under such Registration Statement.

                                      31
<PAGE>

          The Company will not be obligated to effect more than two (2) separate
Demand Registrations during any twelve (12) month period; provided, however,
                                                          --------  -------
that only one (1) request for a Demand Registration may be exercised by (i) AT&T
PCS and/or (ii) Management Stockholders that in the aggregate Beneficially Own
at least 50.1% of the shares of Class A Voting Common Stock then Beneficially
Owned by the Management Stockholders during any twelve (12) month period.

          Within ten (10) days after receipt of the request for a Demand
Registration, the Company will send written notice (the "Demand Notice") of such
Registration request and its intention to comply therewith to all Stockholders
who are holders of Registrable Securities and, subject to Section 5(a)(ii), the
Company will include in such Demand Registration all Registrable Securities of
such Stockholders with respect to which the Company has received written
requests for inclusion therein within twenty (20) days after the last date such
Demand Notice was deemed to have been given pursuant to Section 12.1.

          (ii)  Priority on Demand Registration.  If the managing underwriter or
                -------------------------------
underwriters advise the Company and the holders of the Registrable Securities to
be registered in writing that in its or their opinion that, the number of
Registrable Securities proposed to be sold in such Registration and any other
securities of the Company requested or proposed to be included in such
Registration exceeds the number that can be sold in such offering without (A)
creating a substantial risk that the proceeds or price per share to be derived
from such Registration will be reduced or that the number of Registrable
Securities to be registered is too large a number to be reasonably sold, or (B)
materially and adversely affecting such Registration in any other respect, the
Company will (x) include in such Registration the aggregate number of
Registrable Securities recommended by the managing underwriter (the number of
Registrable Securities to be registered for each Stockholder to be reduced pro
rata based on the amount of Registrable Securities each of the Stockholders
requested to be included in such Registration), and (y) not allow any securities
other than Registrable Securities to be included in such Registration unless all
Registrable Securities requested to be included shall have been included
therein, and then only to the extent recommended by the managing underwriter or
determined by the Company after consultation with an investment banker of
nationally recognized standing (notification of which number shall be given by
the Company to the holders of Registrable Securities).

          (iii) Selection of Underwriters. The offering of such Registrable
                -------------------------
Securities pursuant to such Demand Registration shall be in the form of an
underwritten offering. The Demanding Stockholder that initiated such Demand
Registration will select a managing underwriter or underwriters of recognized
national standing to administer the offering, which managing underwriter or
underwriters shall be reasonably acceptable to the Company.

     (b)  Piggyback Registration Rights.
          -----------------------------

          (i) Right to Piggyback. If the Company proposes to register any shares
              ------------------
of Class A Voting Common Stock (or securities convertible into or exchangeable
for

                                      32
<PAGE>

 Class A Voting Common Stock) with the Commission under the Securities Act
(other than a Registration on Form S-4 or Form S-8, or any successor forms), and
the Registration form to be used may be used for the Registration of the
Registrable Securities (a "Piggyback Registration"), the Company will give
written notice (a "Piggyback Notice") to all Stockholders, at least thirty (30)
days prior to the anticipated filing date, of its intention to effect such a
Registration, which notice will specify the proposed offering price (if
determined at that time), the kind and number of securities proposed to be
registered, the distribution arrangements and will, subject to Section 5(b)(ii),
include in such Piggyback Registration all Registrable Securities with respect
to which the Company has received written requests (which requests have not been
withdrawn) for inclusion therein within twenty (20) days after the last date
such Piggyback Notice was deemed to have been given pursuant to Section 12.1. If
at any time after giving the Piggyback Notice and prior to the effective date of
the Registration Statement filed in connection with such Registration, the
Company determines for any reason not to register or to delay Registration, the
Company may, at its election, give written notice of such determination to each
holder of Registrable Securities that has requested inclusion of Registrable
Securities in such Registration and (A) in the case of a determination not to
register, shall be relieved of its obligation to register any Registrable
Securities in connection with such Registration, and (B) in the case of a
determination to delay registering, shall be permitted to delay registering any
Registrable Securities for the same period as the delay in registering such
other securities.

               (ii) Priority on Piggyback Registrations. If the managing
                    -----------------------------------
underwriter or underwriters, if any, advise the Company and the holders of
Registrable Securities in writing that in its or their opinion, that the number
or kind of securities proposed to be sold in such Registration (including
Registrable Securities to be included pursuant to Section 5(b)(i)) exceeds the
number that can be sold in such offering without (A) creating a substantial risk
that the proceeds or price per share the Company will derive from such
Registration will be reduced, or that the number of shares to be registered is
too large a number to be reasonably sold or (B) materially and adversely
affecting such Registration in any other respect, without any reduction in the
amount of securities the Company proposes to issue and sell for its own account
or in the amount of securities any other security holder proposes to sell for
its own account pursuant to a demand Registration right, the number of
Registrable Securities to be registered for each Demanding Stockholder shall be
reduced pro rata based on the amount of Registrable Securities each of the
Demanding Stockholders requested to be included in such Registration, to the
extent necessary to reduce the number of Registrable Securities to be registered
to the number recommended by the managing underwriter or determined by the
Company after consultation with an investment banker of nationally recognized
standing (notification of which number shall be given by the Company to the
holders of Registrable Securities of such determination).

          (c)  Selection of Underwriters. Except as set forth in Section
               -------------------------
5.1(a)(iii), the Company (by action of the Board of Directors) will select a
managing underwriter or underwriters to administer the offering, which managing
underwriter or underwriters will be of nationally recognized standing.

                                      33
<PAGE>

          (d)  Registration Procedures. With respect to any Demand Registration
               -----------------------
or Piggyback Registration (each, a "Registration"), the Company shall, subject
to Sections 5(a)(i) and (5)(a)(ii) and Sections 5(b)(i) and 5(b)(ii), as
expeditiously as practicable:

               (i)   prepare and file with the Commission, as promptly as
reasonably practicable (but in no event more than forty-five (45) days) after
the receipt of the Registration requests under Sections 5(a) or 5(b), a
registration statement or registration statements (each, a "Registration
Statement") relating to the applicable Registration on any appropriate form
under the Securities Act, which form shall be available for the sale of the
Registrable Securities in accordance with the intended method or methods of
distribution thereof; cooperate and assist in any filings required to be made
with the NASD; and use its reasonable best efforts to cause such Registration
Statement to become and (to the extent provided herein) remain effective;
provided, however, that before filing a Registration Statement or prospectus
- --------  -------
related thereto (a "Prospectus") or any amendments or supplements thereto, the
Company shall furnish to the holders of the Registrable Securities covered by
such Registration Statement and the underwriters, if any, copies of all such
documents proposed to be filed, which documents will be subject to the
reasonable review of such holders and underwriters and their respective counsel,
and the Company shall not file any Registration Statement or amendment thereto
or any Prospectus or any supplement thereto to which the holders of a majority
of the Registrable Securities covered by such Registration Statement or the
underwriters, if any, shall reasonably object;

               (ii)  prepare and file with the Commission such amendments and
supplements to the Registration Statement as may be necessary to keep each
Registration Statement effective for three (3) months (six (6) months in the
case of any shelf registration requested by a Qualified Holder pursuant to this
Section 5) or such shorter period that will terminate when all Registrable
Securities covered by such Registration Statement have been sold; cause each
Prospectus to be supplemented by any required Prospectus supplement, and as so
supplemented to be filed pursuant to Rule 424 under the Securities Act; and
comply with the provisions of the Securities Act with respect to the disposition
of all securities covered by such Registration Statement during the applicable
period in accordance with the intended method or methods of distribution by the
sellers thereof set forth in such Registration Statement or supplement to the
Prospectus;

               (iii) promptly notify the selling holders of Registrable
Securities and the managing underwriters, if any (and, if requested by any such
person or entity, confirm such advice in writing), (A) when the Prospectus or
any Prospectus supplement or post-effective amendment has been filed, and, with
respect to the Registration Statement or any post-effective amendment, when the
same has become effective; (B) of any request by the Commission for amendments
or supplements to the Registration Statement or the Prospectus or for additional
information; (C) of the issuance by the Commission of any stop order suspending
the effectiveness of the Registration Statement or the initiation of any
proceedings for that purpose; (D) if at any time the representations and
warranties of the Company contemplated by subsection (xiv) of this subsection
(d) below cease to be true and correct; (E) of the receipt by the Company

                                      34
<PAGE>

of any notification with respect to the suspension of the qualification of the
Registrable Securities for sale under the securities or blue sky laws of any
jurisdiction or the initiation or threatening of any proceeding for such
purpose; and (F) of the happening of any event which makes any statement made in
the Registration Statement, the Prospectus or any document incorporated therein
by reference untrue or which requires the making of any changes in the
Registration Statement, the Prospectus or any document incorporated therein by
reference in order to make the statements therein not misleading;

          (iv)   use its reasonable best efforts to obtain the withdrawal of any
order suspending the effectiveness of (I) the Registration Statement, or (II)
the qualification of the Registrable Securities for sale under the securities or
blue sky laws of any jurisdiction at the earliest possible time;

          (v)    if requested by the managing underwriter or underwriters or a
holder of Registrable Securities being sold in connection with an underwritten
offering, promptly incorporate in a Prospectus supplement or post-effective
amendment such information as the managing underwriters and the holders of a
majority of the Registrable Securities being sold agree should be included
therein relating to the plan of distribution with respect to such Registrable
Securities, including, without limitation, information with respect to the
number of Registrable Securities being sold to such underwriters, the purchase
price being paid therefor by such underwriters and any other terms of the
underwritten (or best efforts underwritten) offering of the Registrable
Securities to be sold in such offering; and make all required filings of such
Prospectus supplement or post-effective amendment as soon as notified of the
matters to be incorporated in such Prospectus supplement or post-effective
amendment;

          (vi)   furnish to each selling holder of Registrable Securities and
each managing underwriter, without charge, at least one signed copy of the
Registration Statement and any amendment thereto, including financial statements
and schedules, all documents incorporated therein by reference and all exhibits
(including those incorporated by reference);

          (vii)  deliver to each selling holder of Registrable Securities and
the underwriters, if any, without charge, as many copies of the Prospectus
(including each preliminary prospectus) and any amendment or supplement thereto
as such selling holder of Registrable Securities underwriters may reasonably
request in order to facilitate the public sale or other disposition of the
securities owned by such selling holder;

          (viii) prior to any public offering of Registrable Securities, use its
reasonable best efforts to register or qualify or cooperate with the selling
holders of Registrable Securities, the underwriters, if any, and their
respective counsel in connection with the Registration or qualification of such
Registrable Securities for offer and sale under the securities or "blue sky"
laws of such jurisdictions in the United States as any seller or underwriter
reasonably requests in writing, use its reasonable best efforts to obtain all
appropriate registrations, permits and consents required in connection
therewith, and do any and all other acts or things reasonably necessary or
advisable to enable the disposition in such jurisdictions of

                                      35
<PAGE>

the Registrable Securities covered by the Registration Statement; provided,
                                                                  --------
however, that the Company will not be required to qualify generally to do
- -------
business in any jurisdiction where it is not then so qualified or to take any
action that would subject it to taxation or general service of process in any
such jurisdiction where it is not then so subject;

               (ix)   cooperate with the selling holders of Registrable
Securities and the managing underwriters, if any, to facilitate the timely
preparation and delivery of certificates representing Registrable Securities to
be sold and not bearing any restrictive legends and to be in such denominations
and registered in such names as the managing underwriters may request at least
two (2) business days prior to any sale of Registrable Securities to the
underwriters;

               (x)    use its reasonable best efforts to cooperate with any
selling holder to cause the Registrable Securities covered by the applicable
Registration Statement to be registered with or approved by such other
governmental agencies or authorities in the United States as may be necessary to
enable the seller or sellers thereof or the underwriters, if any, to consummate
the disposition of such Registrable Securities;

               (xi)   upon the occurrence of any event contemplated by
subsection (iii)(F) above, promptly prepare a supplement or post-effective
amendment to the Registration Statement or the related Prospectus or any
document incorporated therein by reference or file any other required document
so that, as thereafter delivered to the purchasers of the Registrable
Securities, the Prospectus will not contain an untrue statement of a material
fact or omit to state any material fact necessary to make the statements therein
not misleading;

               (xii)  cause all Registrable Securities covered by any
Registration Statement to be listed on each securities exchange on which similar
securities issued by the Company are then listed, or, if not so listed, cause
such Registrable Securities to be authorized for trading on the NASDAQ National
Market System if any similar securities issued by the Company are then so
authorized, if requested by the holders of a majority of such Registrable
Securities or the managing underwriters, if any;

               (xiii) not later than the effective date of the applicable
Registration, provide a CUSIP number for all Registrable Securities;

               (xiv)  enter into such customary agreements (including in the
case of a Demand Registration that is an underwritten offering, an underwriting
agreement in customary form) and take all such other actions reasonably required
in connection therewith in order to expedite or facilitate the disposition of
such Registrable Securities and in such connection, whether or not an
underwriting agreement is entered into and whether or not the Registration is an
underwritten Registration, (A) make such representations and warranties to the
holders of such Registrable Securities and the underwriters, if any, in form,
substance and scope as are customarily made by issuers to underwriters in
primary underwritten offerings; (B) use reasonable best efforts to obtain
opinions of counsel to the Company and updates thereof (which opinions of
counsel shall be in form, scope and substance reasonably satisfactory to the

                                      36
<PAGE>

managing underwriters, if any, and to the holders of a majority of the
Registrable Securities being sold), addressed to each selling holder and the
underwriters, if any, covering the matters customarily covered in opinions
requested in underwritten offerings and such other matters as may be reasonably
requested by such holders and underwriters; (C) use reasonable best efforts to
obtain "cold comfort" letters and updates thereof from the Company's independent
certified public accountants addressed to the selling holders of Registrable
Securities and the underwriters, if any, such letters to be in customary form
and covering matters of the type customarily covered in "cold comfort" letters
by underwriters in connection with primary underwritten offerings; and (D)
deliver such documents and certificates as may be reasonably requested by the
holders of a majority of the Registrable Securities being sold and the managing
underwriters, if any, to evidence compliance with subsection (xi) above and with
any customary conditions contained in the underwriting agreement or other
agreement entered into by the Company. All the above in this Section 5(d)(xiv)
shall be done at each closing under each underwriting or similar agreement or as
and to the extent required thereunder;

               (xv)   make available for inspection by a representative of each
Demanding Stockholder, any underwriter participating in any disposition pursuant
to such Registration, and any attorney or accountant retained by the sellers or
underwriter, copies or extracts of all financial and other records, pertinent
corporate documents and properties of the Company as shall be reasonably
necessary, in the opinion of the holders' or underwriter's counsel, to enable
them to fulfill their due diligence responsibilities; and cause the Company's
officers, directors and employees to supply all information reasonably requested
by any such representative, underwriter, attorney or accountant in connection
with such Registration Statement; provided, however, that the Company shall not
                                  --------  -------
be required to comply with this paragraph (xv) unless such person executes
confidentiality agreements whereby such person agrees that any records,
information or documents that are designated by the Company in writing as
confidential shall be kept confidential by such Persons and used only in
connection with the proposed Registration unless disclosure of such records,
information or documents is required by court or administrative order or any
regulatory body having jurisdiction; and each seller of Registrable Securities
agrees that it will, upon learning that disclosure of such records, information
or documents is sought in a court of competent jurisdiction or by a governmental
agency, give notice to the Company and allow the Company, at the Company's
expense, to undertake appropriate action to prevent disclosure of any records,
information or documents deemed confidential; provided further, however,
                                              -------- -------  -------
notwithstanding any designation of confidentiality by the Company, confidential
information shall not include information which (i) becomes generally available
to the public other than as a result of a disclosure by or on behalf of any such
Person, or (ii) becomes available to any such Person on a non-confidential basis
from a source other than the Company or its advisors, provided that such source
is not to such Person's knowledge bound by a confidentiality agreement with or
other obligations of secrecy to the Company or another party with respect to
such information;

               (xvi)  otherwise use its reasonable best efforts to comply with
all applicable rules and regulations of the Commission, and make generally
available to its security holders, earnings statements satisfying the provisions
of Section 11(a) of the Securities Act, no

                                      37
<PAGE>

later than forty-five (45) days after the end of any twelve (12) month period
(or ninety (90) days, if such period is a fiscal year) (A) commencing at the end
of any fiscal quarter in which Registrable Securities are sold to underwriters
in a firm or best efforts underwritten offering, or (B) if not sold to
underwriters in such an offering, beginning with the first month of the
Company's first fiscal quarter commencing after the effective date of the
Registration Statement, which statements shall cover said twelve (12) month
periods; and

               (xvii) promptly prior to the filing of any document that is to be
incorporated by reference into any Registration Statement or Prospectus (after
initial filing of the Registration Statement), provide copies of such document
to counsel to the selling holders of Registrable Securities and to the managing
underwriters, if any, make the Company's executive officers and other
representatives available for discussion of such document and make such changes
in such document prior to the filing thereof as counsel for such selling holders
or underwriters may reasonably request.

          The Company may require each seller of Registrable Securities as to
which any Registration is being effected to furnish to the Company such
information regarding the proposed distribution of such securities as the
Company may from time to time reasonably request in writing. Each holder of
Registrable Securities agrees by acquisition of such Registrable Securities
that, upon receipt of any notice from the Company of the happening of any event
of the kind described in Section 5(d)(xi), such holder shall forthwith
discontinue disposition of Registrable Securities until such holder's receipt of
the copies of the supplemented or amended prospectus contemplated by Section
5(d)(xi), or until it is advised in writing (the "Advice") by the Company that
the use of the Prospectus may be resumed, and has received copies of any
additional or supplemental filings that are incorporated by reference in the
Prospectus; and, if so directed by the Company, such holder shall deliver to the
Company (at the Company's expense) all copies, other than permanent file copies
then in such seller's possession, of the Prospectus covering such Registrable
Securities current at the time of receipt of such notice. In the event the
Company gives any such notice, the time periods regarding the maintenance of the
effectiveness of any Registration Statement in Sections 5(d)(ii) shall be
extended by the number of days during the period from and including the date of
the receipt of such notice pursuant to Section 5(d)(iii)(F) hereof to and
including the date when each seller of Registrable Securities covered by such
Registration Statement shall have received the copies of the supplemented or
amended prospectuses contemplated by Section 5(d)(xi) or the Advice.

          (e)  Indemnification.
               ---------------

               (i)    In the event of the Registration or qualification of any
Registrable Securities under the Securities Act or any other applicable
securities laws pursuant to the provisions of this Section 5, the Company agrees
to indemnify and hold harmless each Stockholder thereby offering such
Registrable Securities for sale (an "Indemnified Stockholder"), underwriter,
broker or dealer, if any, of such Registrable Securities, and each other person,
if any, who controls any such Indemnified Stockholder, underwriter, broker or
dealer within the meaning of the Securities Act or any other applicable
securities laws, from and

                                      38
<PAGE>

against any and all losses, claims, damages, expenses or liabilities (or actions
in respect thereof), joint or several, to which such Indemnified Stockholder,
underwriter, broker or dealer or controlling person may become subject under the
Securities Act or any other applicable federal or state securities laws or
otherwise, insofar as such losses, claims, damages, expenses or liabilities (or
actions in respect thereof) arise out of or are based upon any untrue statement
or alleged untrue statement of any material fact contained in any Registration
Statement under which such Registrable Securities were registered or qualified
under the Securities Act or any other applicable securities laws, any
preliminary prospectus or final prospectus relating to such Registrable
Securities, or any amendment or supplement thereto, or arise out of or are based
upon the omission or alleged omission to state therein a material fact required
to be stated therein or necessary to make the statements therein not misleading,
or any violation by the Company of any rule or regulation under the Securities
Act or any other applicable federal or state securities laws applicable to the
Company or relating to any action or inaction required by the Company in
connection with any such Registration or qualification, and will reimburse each
such Indemnified Stockholder, underwriter, broker or dealer and each such
controlling person for any legal or other expenses reasonably incurred by such
Indemnified Stockholder, underwriter, broker or dealer or controlling person in
connection with investigating or defending any such loss, claim, damage,
expense, liability or action; provided, however, that the Company will not be
                              --------  -------
liable in any such case to the extent that any such loss, claim, damage, expense
or liability arises out of or is based upon an untrue statement or omission
contained in such Registration Statement, such preliminary prospectus, such
final prospectus or such amendment or supplement thereto, made in reliance upon
and in conformity with written information furnished to the Company by such
Indemnified Stockholder, underwriter, broker, dealer or controlling person
specifically and expressly for use in the preparation thereof or by the failure
of such Indemnified Stockholder, underwriter, broker or dealer, or controlling
person to deliver a copy of the Registration Statement, such preliminary
prospectus, such final prospectus or such amendment or supplement thereto after
the Company has furnished such party with a sufficient number of copies of the
same and such party failed to deliver or otherwise provide a copy of the final
prospectus to the person asserting an untrue statement or omission or alleged
untrue statement or omission at or prior to the written confirmation of the sale
of securities to such person, if such statement or omission was in fact
corrected in such final prospectus.

               (ii)  In the case of an underwritten offering in which the
Registration Statement covers Registrable Securities, the Company agrees to
enter into an underwriting agreement in customary form and substance with such
underwriters and to indemnify the underwriters, their officers and directors, if
any, and each person, if any, who controls such underwriters within the meaning
of Section 15 of the Securities Act and Section 20 of the Exchange Act, to the
same extent as provided in the preceding paragraph with respect to the
indemnification of the holders of Registrable Securities; provided, however, the
                                                          --------  -------
Company shall not be required to indemnify any such underwriter, or any officer
or director of such underwriter or any person who controls such underwriter
within the meaning of Section 15 of the Securities Act and Section 20 of the
Exchange Act, to the extent that the loss, claim, damage, expense or liability
(or actions in respect thereof) for which indemnification is sought results from
such underwriter's failure to deliver or otherwise provide a copy of the final
prospectus to the person

                                      39
<PAGE>

asserting an untrue statement or omission or alleged untrue statement or
omission at or prior to the written confirmation of the sale of securities to
such person, if such statement or omission was in fact corrected in such final
prospectus.

               (iii) In the event of the Registration or qualification of any
Registrable Securities of the Stockholders under the Securities Act or any other
applicable federal or state securities laws for sale pursuant to the provisions
hereof, each Indemnified Stockholder agrees severally, and not jointly, to
indemnify and hold harmless the Company, each person who controls the Company
within the meaning of the Securities Act, and each officer and director of the
Company from and against any losses, claims, damages, expenses or liabilities
(or actions in respect thereof), joint or several, to which the Company, such
controlling person or any such officer or director may become subject under the
Securities Act or any other applicable securities laws or otherwise, insofar as
such losses, claims, damages, expenses or liabilities (or actions in respect
thereof) arise out of or are based upon any untrue statement of any material
fact contained in any Registration Statement under which such Registrable
Securities were registered or qualified under the Securities Act or any other
applicable securities laws, any preliminary prospectus or final prospectus
relating to such Registrable Securities, or any amendment or supplement thereto,
or arise out of or are based upon an untrue statement therein or the omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading, which untrue statement or omission was
made therein in reliance upon and in conformity with written information
furnished to the Company by such Indemnified Stockholder specifically and
expressly for use in connection with the preparation thereof, and will reimburse
the Company, such controlling person and each such officer or director for any
legal or any other expenses reasonably incurred by them in connection with
investigating or defending any such loss, claim, damage, expense, liability or
action; provided, however, an Indemnified Stockholder's liability under this
        --------  -------
Section 5(e)(iii) shall not exceed the net proceeds received by such Indemnified
Stockholder with respect to the sale of any Registrable Securities.

               (iv)  In the case of an underwritten offering of Registrable
Securities, each holder of a Registrable Security included in a Registration
Statement shall agree to enter into an underwriting agreement in customary form
and substance with such underwriters, and to indemnify such underwriters, their
officers and directors, if any, and each person, if any, who controls such
underwriters within the meaning of Section 15 of the Securities Act and Section
20 of the Exchange Act, to the same extent as provided in the preceding
paragraph with respect to indemnification by such holder of the Company, but
subject to the same limitation as provided in Section 5(e)(ii) with respect to
indemnification by the Company of such underwriters, officers, directors and
control persons.

               (v)   Promptly after receipt by a person entitled to
indemnification under this Section 5(e) (an "Indemnified Party") of notice of
the commencement of any action or claim relating to any Registration Statement
filed under this Section 5 as to which indemnity may be sought hereunder, such
Indemnified Party will, if a claim for indemnification hereunder in respect
thereof is to be made against any other party hereto (an "Indemnifying Party"),
give written notice to each such Indemnifying Party of the commencement of such
action or claim,

                                      40
<PAGE>

but the omission to so notify each such Indemnifying Party will not relieve any
such Indemnifying Party from any liability which it may have to any Indemnified
Party otherwise than pursuant to the provisions of this Section 5(e) and shall
also not relieve any such Indemnifying Party of its obligations under this
Section 5(e) except to the extent that any such Indemnifying Party is actually
prejudiced thereby. In case any such action is brought against an Indemnified
Party, and such Indemnified Party notifies an Indemnifying Party of the
commencement thereof, such Indemnifying Party will be entitled (at its own
expense) to participate in and, to the extent that it may wish, jointly with any
other Indemnifying Party similarly notified, to assume the defense, with counsel
reasonably satisfactory to such Indemnified Party, of such action and/or to
settle such action and, after notice from the Indemnifying Party to such
Indemnified Party of its election so to assume the defense thereof, the
Indemnifying Party will not be liable to such Indemnified Party for any legal or
other expenses subsequently incurred by such Indemnified Party in connection
with the defense thereof, other than the reasonable cost of investigation;
provided, however, that no Indemnifying Party shall consent to the entry of any
- --------  -------
judgment or enter into any settlement agreement without the prior written
consent of the Indemnified Party unless such Indemnified Party is fully released
and discharged from any such liability, and no Indemnified Party shall consent
to the entry of any judgment or enter into any settlement of any such action the
defense of which has been assumed by an Indemnifying Party without the consent
of each Indemnifying Party. Notwithstanding the foregoing, the Indemnified Party
shall have the right to employ its own counsel in any such case, but the fees
and expenses of such counsel shall be at the expense of such Indemnified Party
unless (a) the employment of such counsel shall have been authorized in writing
by the Indemnifying Party in connection with the defense of such suit, action,
claim or proceeding; (b) the Indemnifying Party shall not have employed counsel
(reasonably satisfactory to the Indemnified Party) to take charge of the defense
of such action, suit, claim or proceeding; or (c) such Indemnified Party shall
have reasonably concluded, based upon the advice of counsel, that there may be
defenses available to it which are different from or additional to those
available to the Indemnifying Party which, if the Indemnifying Party and the
Indemnified Party were to be represented by the same counsel, could result in a
conflict of interest for such counsel or materially prejudice the prosecution of
the defenses available to such Indemnified Party. If any of the events specified
in clauses (a), (b) or (c) of the preceding sentence shall have occurred or
shall otherwise be applicable, then the fees and expenses of one counsel or firm
of counsel selected by a majority in interest of the indemnified parties (and
reasonably acceptable to the Indemnifying Party) shall be borne by the
Indemnifying Party. If, in any such case, the Indemnified Party employs separate
counsel, the Indemnifying Party shall not have the right to direct the defense
of such action, suit, claim or proceeding on behalf of the Indemnified Party and
the Indemnified Party shall assume such defense and/or settle such action;
provided, however, that an Indemnifying Party shall not be liable for the
- --------  -------
settlement of any action, suit, claim or proceeding effected without its prior
written consent, which consent shall not be unreasonably withheld.

          The provisions of this Section 5(e) shall be in addition to any
liability which any party may have to any other party and shall survive any
termination of this Agreement.

                                      41
<PAGE>

          (f)  Contribution. If for any reason the indemnification provided for
               ------------
in Section 5(e)(i) or 5(e)(iii) is unavailable to an Indemnified Party as
contemplated therein, then the Indemnifying Party, in lieu of indemnification
shall contribute to the amount paid or payable by the Indemnified Party as a
result of such loss, claim, damage, expense or liability (or action in respect
thereof) in such proportion as is appropriate to reflect not only the relative
benefits received by the Indemnified Party and the Indemnifying Party, but also
the relative fault of the Indemnified Party and the Indemnifying Party, as well
as any other relevant equitable considerations, provided that no Stockholder
shall be required to contribute in an amount greater than the difference between
the net proceeds received by such Stockholder with respect to the sale of any
Registrable Securities and all amounts already contributed by such Stockholder
with respect to such claims, including amounts paid for any legal or other fees
or expenses incurred by such Stockholder. No person guilty of a fraudulent
misrepresentation (within the meaning of Section 11(f) of the Securities Act)
shall be entitled to contribution from any person who was not guilty of any such
fraudulent misrepresentation. The relative fault of such Indemnifying Party and
Indemnified Party shall be determined by reference to, among other things,
whether any action in question, including any untrue or alleged untrue statement
of a material fact or omission or alleged omission to state a material fact, has
been made by, or relates to information supplied by, such Indemnifying Party or
Indemnified Party, and the parties' relative intent, knowledge, access to
information and opportunity to correct or prevent such action.

          (g)  Registration Expenses. Except as hereinafter provided, all
               ---------------------
expenses incident to the Company's performance of or compliance with this
Section 5 will be borne by the Company, including, without limitation, all
Registration and filing fees under the Securities Act and the Exchange Act, the
fees and expenses of the counsel and accountants for the Company (including the
expenses of any "cold comfort" letters and special audits required by or
incident to the performance of such persons), all other costs and expenses of
the Company incident to the preparation, printing and filing under the
Securities Act of the Registration Statement (and all amendments and supplements
thereto), and furnishing copies thereof and of the Prospectus included therein,
all out-of-pocket expenses of underwriters customarily paid for by issuers to
the extent provided for in any underwriting agreement, the costs and expenses
incurred by the Company in connection with the qualification of the Registrable
Securities under the state securities or "blue sky" laws of various
jurisdictions, the costs and expenses associated with filings required to be
made with the NASD, the costs and expenses of listing the Registrable Securities
for trading on a national securities exchange or authorizing them for trading on
NASDAQ and all other costs and expenses incurred by the Company in connection
with any Registration hereunder. In addition, the Company shall pay or reimburse
the sellers of Registrable Securities the reasonable fees and expenses of one
attorney to such sellers incurred in connection with a registration
(collectively, with the expenses referred to in the immediately preceding
sentence, the "Registration Expenses"). Except as provided in the immediately
preceding sentence, each Stockholder shall bear the costs and expenses of any
underwriters' discounts and commissions, brokerage fees or transfer taxes
relating to the Registrable Securities sold by such Stockholder and the fees and
expenses of any attorneys, accountants or other representatives retained by the
Stockholder.

                                      42
<PAGE>

          (h)  Participation in Underwritten Registrations. No Stockholder may
               -------------------------------------------
participate in any underwritten Registration hereunder unless such Stockholder
(i) agrees to sell its Registrable Securities on the basis provided in any
customary and reasonable underwriting arrangements approved by the persons
entitled hereunder to select the underwriter, and (ii) accurately completes in a
timely manner and executes all questionnaires, powers of attorney, underwriting
agreements, indemnities and other documents customarily required under the terms
of such underwriting arrangements.

          (i)  Holdback Agreements.
               -------------------

               (i)  Each holder of Registrable Securities whose securities are
included in a Registration Statement agrees not to effect any public sale or
distribution of the issue being registered or a similar security of the Company,
or any securities convertible into or exchangeable or exercisable for such
securities, including a sale pursuant to Rule 144 or Rule 144A under the
Securities Act, during the fifteen (15) days prior to, and during the ninety
(90)-day period (or such longer period as requested by the managing underwriter
or underwriters in the case of an underwritten public offering) beginning on,
the effective date of such Registration Statement (except as part of such
Registration), if and to the extent requested by the managing underwriter or
underwriters in an underwritten public offering.

               (ii) The Company agrees not to effect any public sale or
distribution of the issue being registered or a similar security of the Company,
or any securities convertible into or exchangeable or exercisable for such
securities (other than any such sale or distribution of such securities in
connection with any merger or consolidation by the Company or any Subsidiary or
the acquisition by the Company or any Subsidiary of the capital stock or
substantially all of the assets of any other Person), during the fifteen (15)
days prior to, and during the ninety (90)-day period beginning on, the effective
date of each Demand Registration.

          (j)  Public Information Reporting. The Company hereby covenants and
               ----------------------------
agrees to and with the Stockholders that at all times following the IPO Date it
shall provide and file such financial and other information concerning the
Company as may from time to time be required by the Commission and any other
governmental authority having jurisdiction, so as to comply with all reporting
requirements under the Exchange Act, and shall, upon request, state in writing
that it has complied with all such requirements, and further agrees that, for so
long as (following the IPO Date) the Company is not subject to Section 13 or
15(d) of the Exchange Act, the Company shall comply in all respects with
paragraph (c)(2) of Rule 144.

     6.   Disqualifying Transactions.
          --------------------------

     6.1  Company Conversion Rights. In the event AT&T PCS terminates its
          -------------------------
obligations under Section 8.6 pursuant to Section 8.8(c) with respect to any
Overlap Territory, the Company shall have the following rights which may be
exercised by the Company in its sole discretion during the sixty (60) day period
commencing on the date of such termination:

                                      43
<PAGE>

          (a)  (i)  The Company shall have the right in accordance with the
Restated Certificate to cause AT&T PCS, TWR Cellular and any Section 4.12
Transferee (as defined in the Restated Certificate) to exchange either (A) all,
or (B) a proportionate number of shares of Series A Preferred Stock then owned
by AT&T PCS, TWR Cellular and each Section 4.12 Transferee equal to a fraction,
the numerator of which is the number of POPS in the Overlap Territory and the
denominator of which is the total number of POPS in the Territory, of the shares
of Series A Preferred Stock then owned by AT&T PCS, TWR Cellular and each
Section 4.12 Transferee for an equivalent number of shares of Series B Preferred
Stock determined in accordance with the Restated Certificate; and

               (ii) The Company shall have the right in accordance with the
Restated Certificate to cause AT&T PCS, TWR Cellular and each Section 4.12
Transferee to exchange either (A) all or (B) a proportionate number equal to a
fraction, the numerator of which is the number of POPs in the Overlap Territory,
and the denominator of which is the total number of POPs in the Territory, of
the shares of Series D Preferred Stock, Series F Preferred Stock and Common
Stock Beneficially Owned by AT&T PCS and TWR Cellular on the date hereof (or
shares of Common Stock or Senior Common Stock into which such shares of Series D
Preferred Stock, Series F Preferred Stock and Senior Common Stock shall have
been converted) and that AT&T PCS, TWR Cellular or a Section 4.12 Transferee
continues to own on the date such right is exercised by the Company for that
number of shares of Series B Preferred Stock as shall be equal to the aggregate
purchase price paid by AT&T PCS and TWR Cellular for all of such shares of
Series D Preferred Stock, Series F Preferred Stock and Common Stock that AT&T
PCS, TWR Cellular or such Section 4.12 Transferee then Beneficially Owns
(including any shares of Common Stock or Senior Common Stock into which such
Series D Preferred Stock, Series F Preferred Stock and Senior Common Stock shall
have been converted) divided by the liquidation preference of the Series B
Preferred Stock determined in accordance with the Restated Certificate;

provided, however, that (x) if the Company exercises its right under clause
- --------  -------
(i)(A) of this Section 6.1(a) it shall be required to exercise its right under
clause (ii)(A) of this Section 6.1(a), and vice versa; and if the Company
exercises its right under clause (i)(B) of the Section 6.1(a) it shall be
required to exercise its right under clause (ii)(B) of this Section 6.1(a) and
vice versa, and (y) the provisions of this Section 6.1(a) shall not apply to any
Section 4.12 Transferee which is a Cash Equity Investor.

          (b)  The Company may redeem the shares of Series B Preferred Stock at
any time as provided in the Restated Certificate.

     6.2  Joint Marketing Right. During the period commencing on the date of
          ---------------------
announcement by AT&T PCS of a transaction meeting the description of a
transaction set forth in clauses (a), (b) and (c) of the definition of a
Disqualifying Transaction (unless AT&T PCS notifies the Company it has waived
its right to declare such transaction a Disqualifying Transaction in which
event, this Section 6.2 shall not be applicable to such transaction) and
terminating on the later of (x) six (6) months after the date of consummation of
such transaction,

                                      44
<PAGE>

and (y) if applicable, the date by which AT&T PCS is required under applicable
law to dispose of any PCS System or Cellular System serving a Subject Market
(the "Section 6.2 Period"), the following provisions shall apply:

          (a)  If AT&T PCS proposes to sell, transfer or assign to any Person
which is not an Affiliate of AT&T PCS any Subject Market, AT&T PCS shall give
written notice (the "Company Sale Notice") to the Company and the Company shall
have the right, exercisable by written notice given within ten (10) days of
receipt of the Company Sale Notice, to elect to cause AT&T PCS to offer for sale
jointly with the Company for a period of ninety (90) days the Subject Markets
covered by the Company Sale Notice together with all of the Territory included
in the MTA that includes the Subject Markets (the "Joint Marketing Period"). In
the event that AT&T PCS has granted similar rights to the rights set forth in
this Section 6.2 to any Permitted Merger Participant and any Subject Market is
also a "Subject Market" under the terms of any agreement between AT&T PCS and
any such Permitted Merger Participant, the Company agrees that any territory of
the Permitted Merger Participant that is required under the terms of such
agreement to be offered for sale jointly with any Subject Markets shall be
offered for sale jointly with such Subject Markets and all of the Territory
included in the MTA that includes such Subject Markets. During the Joint
Marketing Period, AT&T PCS shall not sell the Subject Markets other than in a
transaction that includes the Subject Markets and the Territory included in the
MTA that includes the Subject Markets, provided, however, that neither AT&T PCS
                                       --------  -------
nor the Company shall be obligated to enter into a transaction for such Subject
Markets and such Territory other than on terms acceptable to each of them in
their sole discretion. This Section 6.2 shall cease to apply to any Subject
Market upon the earlier of (x) if the Company fails to make the joint marketing
election with respect to the applicable Subject Market within the ten (10) day
period referred to above, the expiration of such ten (10) day period, or (y) if
the Company makes the joint marketing election with respect to the applicable
Subject Market, upon the expiration of the Joint Marketing Period.

          (b)  Nothing contained in this Section 6.2 shall (x) be construed to
require AT&T PCS to deliver a Company Sale Notice with respect to any Subject
Market except during the Section 6.2 Period, (y) extend the obligation of AT&T
PCS set forth in this Section 6.2 beyond the expiration of the Section 6.2
Period or (z) apply to any sale, transfer or assignment of any Subject Market
pursuant to an agreement executed on any date not within the Section 6.2 Period.

          (c)  Nothing in this Agreement shall be construed to require AT&T PCS
to deliver the notice described in clause (d) of the definition of a
Disqualifying Transaction, including, without limitation, circumstances in which
AT&T PCS or its Affiliates enters into any transaction meeting the description
of a transaction set forth in clauses (a), (b) and (c) of the definition of a
Disqualifying Transaction.

                                      45
<PAGE>

     7.   Additional Rights and Covenants.
          -------------------------------

     7.1  Financial Statements. The Company shall provide to each Stockholder
          --------------------
(a) within seventy-five (75) days after the end of each fiscal quarter (other
than the fourth fiscal quarter) or such shorter periods as is required pursuant
to the terms of the Company's senior indebtedness, the unaudited consolidated
balance sheet of the Company and its Subsidiaries as at the end of such period
and the related unaudited consolidated statements of income, surplus and cash
flows for such period and year-to-date and (b) within one hundred twenty (120)
days after the end of each fiscal year, the audited consolidated balance sheet
of the Company and its Subsidiaries as at the end of such year and the related
unaudited consolidated statements of income, surplus and cash flows for such
year. All financial statements and information provided pursuant to this Section
7.1 shall constitute Confidential Information under Section 7.7.

     7.2  Purchase Right.
          --------------

          (a)  If on or prior to the IPO Date the Company proposes to offer,
issue, sell or otherwise dispose of shares of any class or series of common
stock or Preferred Stock, or options, rights, warrants, conversion rights or
appreciation rights relating thereto, or any other type of equity security
(collectively, "Equity Securities") of the Company for cash to any Person,
including pursuant to an initial public offering, (x) the Company shall, prior
to any such offer, issuance, sale or other disposition, give written notice (an
"Issuance Notice") to each of the Stockholders setting forth the purchase price
of such Equity Securities (or, in the case of an initial public offering, the
anticipated price range), the type and aggregate number of Equity Securities or
rights to acquire Equity Securities to be so offered, issued, sold or otherwise
disposed of, the terms and conditions of such offer, issuance, sale or other
disposition, and the rights, powers and duties inhering in such additional
Equity Securities or rights to acquire Equity Securities, and (y) each
Stockholder shall have the right (the "Purchase Right") to acquire the
percentage of Equity Securities proposed to be offered, issued, sold or
otherwise disposed of equal to the number of shares of Class A Voting Common
Stock then Beneficially Owned by such Stockholder divided by the aggregate
number of shares of Class A Voting Common Stock outstanding immediately prior to
such offer, issuance, sale or other disposition of Equity Securities (including
any shares of Class A Voting Common Stock Beneficially Owned by such
Stockholder); provided, however, that the terms and conditions of this Section
              -------- --------
7.2 shall not apply to any offer, issuance, sale or other disposition of Equity
Securities or rights to acquire Equity Securities to any Person pursuant to a
stock option or stock appreciation rights plan established by the Company for
the benefit of its employees, officers, directors, agents or consultants, or
otherwise granted to an employee of the Company in connection with such person's
employment by the Company. In the case of an offer, issuance sale or other
disposition of Equity Securities issued as part of a unit with other debt,
equity or other securities of the Company, the right of a Stockholder to acquire
such Equity Security shall be conditioned upon such Stockholder's acquisition of
such debt, equity or other securities included in such unit.

          (b)  Each Stockholder may exercise such Purchase Right, in whole or in
part, on the terms and conditions and for the purchase price set forth in the
Issuance Notice, by giving

                                      46
<PAGE>

to the Company notice to such effect, within thirty (30) days after the giving
of the Issuance Notice. In the case of an initial public offering, the following
conditions shall apply to the Purchase Right set forth herein: (i) In the event
that a Stockholder exercises such Purchase Right, such Stockholder shall be
obligated to exercise such right if the public offering price is not greater
than the highest price in the anticipated range specified in the applicable
notice, and (ii) in the event that a Stockholder exercises such Purchase Right
and the public offering price is greater than the highest price in the
anticipated range specified in the applicable notice, such Stockholder shall
have the right but not the obligation, to exercise such right at such public
offering price. After the expiration of such thirty (30) day period, the Company
shall have the right to offer, issue, sell and otherwise dispose of any or all
of the Equity Securities referred to in the applicable Issuance Notice as to
which no Purchase Right has been exercised but only upon the terms and
conditions, and for a purchase price not lower than the purchase price set forth
in the Issuance Notice; provided, however, that in the case of an initial public
offering, such right of the Company shall be the right to offer, issue, sell and
otherwise dispose of such Equity Securities at any price. In the event of an
initial public offering of Equity Securities at a price more than 20% below such
lowest price, AT&T PCS shall have the right, exercisable at the time of pricing
of such initial public offering, to exercise such Purchase Right. If the Company
does not offer, issue, sell or otherwise dispose of the Equity Securities
referred to in the applicable Issuance Notice on the terms and conditions set
forth in such Issuance Notice within one hundred twenty (120) days after the
expiration of such thirty (30) day period, then any subsequent proposal by the
Company to offer, issue, sell or otherwise dispose of such Equity Securities
shall be subject to this Section 7.2.

     7.3  Access. The Company shall permit, and shall cause each of its
          ------
Subsidiaries to permit, upon reasonable notice, during normal business hours,
each Qualified Holder and its directors, officers, employees, attorneys,
accountants, representatives, consultants and other agents, at the sole expense
of such Qualified Holder, to (a) visit and inspect any of the properties and
facilities of the Company and its Subsidiaries, (b) examine and make copies of
and extracts from the corporate and financial records of the Company and its
Subsidiaries, (c) discuss the affairs, finances and accounts of the Company or
any such Subsidiary with any of its officers, directors and key employees and
its independent accountants, and (d) otherwise investigate the properties,
businesses and operations of the Company and its Subsidiaries, in each case as
such Qualified Holder reasonably deems necessary; provided, however, that each
                                                  --------  -------
Qualified Holder may exercise its rights pursuant to this Section 7.3 no more
than three times in any 12 month period. The Company shall, and shall cause each
of its Subsidiaries and the officers, directors and employees of the Company and
its Subsidiaries to, cooperate fully in connection with such inspection,
examinations and discussions. The presentation of a copy of this Agreement by
any Qualified Holder to the independent accountants of the Company or any of its
Subsidiaries shall constitute permission by the Company or such Subsidiary to
its independent accountants to participate in discussions with such Qualified
Holder.

     7.4  Merger, Sale or Liquidation of the Company.
          ------------------------------------------

                                      47
<PAGE>

          (a)  Except for transactions permitted pursuant to Section 7.11 and to
the extent permitted in this Section 7.4, the Company shall not, and shall not
permit any of its Subsidiaries to, except with the prior written consent of AT&T
PCS or in accordance with Sections 7.4(b) and 7.4(c), effect (i) any merger,
combination or consolidation of the Company or such Subsidiary with or into any
other entity (regardless of whether the Company or such Subsidiary is the
surviving entity in any such transaction) (any such merger, combination or
consolidation is referred to as a "Company Merger"), (ii) any sale or
disposition of a substantial portion of its assets (a "Company Asset Sale"), or
(iii) the liquidation, dissolution or winding up of the Company or such
Subsidiary.

          (b)  The Company and its Subsidiaries may effect a Company Merger,
without the prior written consent of AT&T PCS, (i) in which the only constituent
corporations are two or more of the Company's wholly owned Subsidiaries, (ii) in
which the only constituent corporations are the Company and one or more of its
wholly owned Subsidiaries and the Company is the surviving corporation, or (iii)
between a Subsidiary of the Company and another entity for the purpose of
acquiring such other entity; provided, that (x) such transaction does not affect
                             --------
the capital structure of the Company, except to the extent the Company issues
common stock to the stockholders of the other entity pursuant to the terms of
such Company Merger, (y) the surviving corporation is a direct or indirect
wholly owned Subsidiary of the Company, and (z) the consummation of such
transaction does not violate Section 8.1(a).

          (c)  The Company and its Subsidiaries may effect any of the
transactions described in clauses (i) or (ii) of Section 7.4(a) (a "Sale
Transaction"), without the prior written consent of AT&T PCS, if (a) such
transaction has no material effect on AT&T PCS' equity interest in the Company
(and the seniority thereof) or its rights under this Agreement, (b) the
Company's direct or indirect interest in its assets is unaffected by such
transaction in any material respect, and (c) such transaction is otherwise
equivalent in all material respects to AT&T PCS to the sale by each of the other
Stockholders of its equity interests in the Company for cash or marketable
securities; provided, that any such Sale Transaction shall nevertheless be
            --------
subject to a right of first offer in accordance with the provisions of Section
7. 4(d).

          (d)  Prior to entering into a Sale Transaction, the Company shall give
written notice (the "Sale Notice") to AT&T PCS. Each Sale Notice shall describe
in reasonable detail all material terms of the proposed Sale Transaction. The
Sale Notice shall constitute an irrevocable offer (a "Sale Offer") to enter into
the Sale Transaction with AT&T PCS on the terms set forth in the Sale Notice.
AT&T PCS shall have the irrevocable right and option, but not the obligation, to
accept the Sale Offer in whole but not in part by giving written notice of its
acceptance of such offer within thirty (30) days of the date the Sale Notice is
given. The Sale Transaction shall be closed at the principal executive offices
of the Company within thirty (30) days after the acceptance by AT&T PCS of the
Sale Offer; provided, however, that, if the Sale Transaction is subject to the
            --------  -------
consent of the FCC or any public service or public utilities commission, the
Sale Transaction shall be closed on the fifth business day after all such
consents shall have been obtained by Final Order. If AT&T PCS declines (which
shall include the failure to give timely notice of acceptance) to accept the
Sale Offer, the Company shall have the right

                                      48
<PAGE>

(for a period of ninety (90) days following the expiration of the thirty (30)
day acceptance period referred to above) to close a Sale Transaction on the
terms described in the Sale Offer (except that the price must be at least 95% of
the price set forth in the Sale Offer); provided however that, if the consent of
                                        -------- -------
the FCC or any public service or public utilities commission is required, the
Sale Transaction may be closed not later than the fifth business day after all
such consents shall have been obtained by Final Order. If, after giving a Sale
Offer, the Company does not close a Sale Transaction in accordance with the
terms of the immediately preceding sentence, the Company shall not effect any
Sale Transaction without giving another Sale Notice in accordance with this
Section 7.4(d).

     7.5  Wholly-Owned Subsidiaries. All of the Company's Subsidiaries shall be
          -------------------------
direct or indirect wholly owned Subsidiaries of the Company, and the Company
shall not, and shall not permit any Subsidiary to, sell or issue, transfer,
encumber or otherwise dispose of any shares of capital stock of any of the
Company's Subsidiaries to any Person other than the Company and its direct or
indirect wholly owned Subsidiaries, except for a pledge of any such shares in
connection with the incurrence of indebtedness.

     7.6  Amendments of the Restated Certificate and By-Laws. Prior to the IPO
          --------------------------------------------------
Date, the Company shall not, without the prior written consent of AT&T PCS,
authorize or adopt any amendment, modification or repeal of any provision of the
Restated Certificate or the Restated By-Laws, unless such amendment is
consistent with the terms of this Agreement.

     7.7  Confidentiality.
          ---------------

          (a)  Each party shall, and shall cause each of its Affiliates, and its
and their respective stockholders, members, managers, directors, officers,
employees and agents (collectively "Representatives") to, keep secret and retain
in strictest confidence any and all information relating to the Company or any
other party that is designated in writing by the party providing such
information or the Company as confidential ("Confidential Information") and
shall not disclose such information, and shall cause its Representatives not to
disclose such information, to anyone except such Affiliates, Representatives or
any other Person that agrees in writing to keep in confidence all such
information in accordance with the terms of this Section 7.7. Each party agrees
to use such information received from another party or the Company only in
connection with its ownership interest in the Company but not for any other
purpose. All such information furnished pursuant to this Agreement shall be
returned promptly to the party to whom it belongs upon request by such party.

          (b)  To the fullest extent permitted by law, if a party or any of its
Affiliates or Representatives breaches, or threatens to commit a breach of, this
Section 7.7, the party whose Confidential Information shall be disclosed, or
threatened to be disclosed, shall have the right and remedy to have this Section
7.7 specifically enforced by any court having jurisdiction, it being
acknowledged and agreed that money damages will not provide an adequate remedy
to such party. Nothing in this Section 7.7 shall be construed to limit the right
of any party to collect money damages in the event of breach of this Section
7.7.

                                      49
<PAGE>

          (c)  Anything else in this Agreement notwithstanding, each party shall
have the right to disclose any information, including Confidential Information
of the other party or such other party's Affiliates, in any filing with any
regulatory agency, court or other authority or any disclosure to a trustee of
public debt of a party to the extent that the disclosing party determines in
good faith that it is required by Law, regulation or the terms of such debt to
do so; provided, however, that any such disclosure shall be as limited in scope
       --------  -------
as possible and shall be made only after giving the other party as much notice
as practicable of such required disclosure and an opportunity to contest such
disclosure if possible.

     7.8  IPO Date. In the event that the IPO Date shall not have occurred on or
          --------
prior to the fifth (5th) anniversary of the date hereof, the Company shall, at
the request of any Qualified Holder, as promptly as is reasonably practicable
after the date of such request, undertake a registration of Common Stock
pursuant to an effective Registration Statement that results in the occurrence
of the IPO Date; provided, however, that if the Board of Directors determines
                 --------  -------
that such registration would interfere with any pending or contemplated material
acquisition, disposition, financing or other material transaction, the Company
may defer such registration (including by withdrawing any Registration Statement
filed in connection with such registration); provided that the aggregate of all
                                             --------
such deferrals shall not exceed one hundred twenty (120) days in any 360-day
period. Any such registration shall be pursuant to an underwritten offering.
Each Stockholder agrees to cooperate in such registration, including, without
limitation, entering into customary holdback agreements.

     7.9  AT&T PCS Retained Licenses. In the event that AT&T PCS desires to
          --------------------------
Transfer all or any of the AT&T PCS Retained Licenses in the Territory at any
time prior to the eighth anniversary of the date hereof, AT&T PCS shall give
written notice thereof to the Company at least thirty (30) days prior to
entering into a binding agreement to sell such AT&T PCS Retained Licenses in the
Territory such notice to specify among other things, the AT&T PCS Retained
Licenses in the Territory that it desires to sell. For a period of thirty (30)
days after the date such notice is given, the Company shall have the right to
negotiate with AT&T PCS with respect to the purchase of all, but not less than
all, of such AT&T Retained Licenses in the Territory; it being understood and
agreed that such right shall not be deemed to be a right of first offer or right
of first refusal for the benefit of the Company and AT&T PCS shall have the
right to reject any offer made by the Company during such thirty (30) day
period. In the event no binding agreement to sell all or any of such AT&T PCS
Retained Licenses in the Territory is entered into prior to the expiration of
the one hundred and eighty (180) day period following the expiration of such
(30) day period, such Licenses shall become subject once again to the provision
and restrictions hereof.

     7.10 Regulatory Cooperation. Each of the Stockholders severally agrees to
          ----------------------
comply with the last sentence of Section 6.7 of the Securities Purchase
Agreement.

     7.11 Permitted Transactions. Notwithstanding the terms of Section 7.4(a)
          ----------------------
and 8.4(a):

                                      50
<PAGE>

          (a)  after completion of the Minimum Build-Out Plan and certification
that Company Systems meet the TDMA Quality Standards, the Company and its
Subsidiaries may effect a merger, combination of consolidation with or into a
Permitted Merger Participant or acquire all or substantially all of the assets
of a Permitted Merger Participant or sell all or substantially all of the assets
of the Company and its Subsidiaries to a Permitted Merger Participant (any such
transaction being referred to as a "Permitted Consolidation Transaction"), so
long as such transaction is approved by the Board of Directors and the holders
of the Company's capital stock to the extent such approval is required pursuant
to the Restated Certificate or applicable law;

          (b)  the Company may acquire FCC Licenses (each such License a
"Permitted Cellular License") authorizing the holder to provide in a specified
geographic area using specified frequencies in respect of which the Board of
Directors has determined that the acquisition of such License (and any other
assets being acquired together therewith) is a demonstrably superior alternative
to constructing a PCS System in the applicable area within the PCS Territory,
provided that, (i) a majority of the POPs included in the geographic area
- --------
covered by such License are within the PCS Territory, (ii) none of AT&T PCS, any
Affiliate thereof or any AT&T Licensee owns an interest in an FCC License to
provide Commercial Mobile Radio Service in such geographic area, and (iii) the
ownership of such License will not conflict with, or cause AT&T PCS, any
Affiliate thereof or any AT&T Licensee to be in violation or breach of any
agreement, instrument, Law or License applicable to or binding upon such Person
or its assets. Notwithstanding the foregoing, the Company shall not acquire any
Permitted Cellular License if the acquisition of such License would adversely
affect the Company's ability to satisfy its obligations under the first sentence
of Section 8.1(b); and

          (c)  The Company may acquire licenses issued by the FCC to provide
wireless services (other than FCC Licenses) (each such license a "Permitted Non-
CMRS License") authorizing the holder to provide in a specified geographic area
using specified frequencies in respect of which the Board of Directors has
determined that the acquisition of such Permitted Non-CMRS License (and any
other assets being acquired together therewith) is necessary or desirable to
constructing a PCS System in the applicable area within the PCS Territory,
provided that, (i) the POPs included in the geographic area covered by such
- --------
License are within the PCS Territory, (ii) none of AT&T PCS or any Affiliate
thereof owns an interest in a similar Permitted Non-CMRS License in such
geographic area, (iii) the ownership of such License will not conflict with, or
cause AT&T PCS or any Affiliate thereof to be in violation or breach of any
agreement, instrument, Law or License applicable to or binding upon such Person
or its assets, and (iv) the service to be provided by the Company using such
Permitted Non-CMRS License complies with the definition of Business.
Notwithstanding the foregoing, the Company shall not acquire any Permitted Non-
CMRS License if the acquisition of such License would adversely affect the
Company's ability to satisfy its obligations under the first sentence of Section
8.1(b).

     7.12 Springfield/Joplin. In the event that AT&T PCS shall propose to sell,
          ------------------
transfer or otherwise dispose of its interest in the Springfield/Joplin System
to any Person other than the Company, AT&T PCS agrees to negotiate in good faith
with the Company to sell the License for

                                      51
<PAGE>

the Springfield/Joplin BTA to the Company; it being understood that AT&T PCS
shall have no obligation to sell such License to the Company unless the terms
thereof are satisfactory to AT&T PCS in its sole discretion. In the event the
Company does not acquire an FCC PCS License covering the Springfield/Joplin BTA,
the Minimum Build-Out Plan for the St. Louis MTA shall be deemed to be amended
to be the minimum build-out requirements under applicable FCC rules in lieu of
the build-out requirements set forth in the Minimum Build-Out Plan.

     7.13 Covenant of Holders of Class C Common Stock. (a) Each holder of
          -------------------------------------------
Class C Common Stock hereby covenants and agrees that, for so long as it is a
holder of any Class C Common Stock and for so long as required by FCC rules, it
will maintain its status as an "Institutional Investor", as such term is used in
47 CFR Section 24.720(h), and that it will give written notice to the Company
within five (5) days after such Stockholder becomes aware that it no longer
maintains such status for any reason (the "Transfer Event"). Upon the
                                           --------------
occurrence of a Transfer Event with respect to any Stockholder under
circumstances such that (i) the failure of the Stockholder to maintain its
status as an Institutional Investor would compromise any of the material
benefits the Company derives as a "Very Small Business", as defined in 47 CFR
(S) 24.720(b)(2) or from the Company's eligibility to bid on frequency block "C"
or "F" licenses, as specified in 47 CFR Section 24.709 or be eligible to receive
any of the rights specified in 47CFR Sections 27.711, 24.712, 24.716 and 24.717
(collectively, the "Material Benefits") and (ii) the Stockholder is unable to
                    -----------------
obtain a waiver from the FCC regarding, or to cure, such Transfer Event or loss
of Material Benefits, the other holders of Class C Common Stock at the time
shall have the right to purchase any or all of such Stockholder's Class C Common
Stock pursuant to the terms hereof, or, if not so purchased by the other holders
of Series C Common Stock, by one or more Persons designated by the Company.

          (b) Within fifteen (15) days of becoming aware that a Transfer Event
has occurred with respect to a Stockholder, the Company shall give the other
holders of Class C Common Stock notice of their right to purchase the
Stockholder's Class C Common Stock for the purchase price paid by such holder of
Class C Common Stock.

          (c)  Notwithstanding the foregoing, any Stockholder which suffers a
Transfer Event may, if to do so would avoid the loss of Material Benefits, elect
to convert all or part of its Class C Common Stock to another class of Common
Stock which the Company has authorized, or to waive in writing such rights
pertaining to its ownership of such stock as may be necessary to avoid the loss
of Material Benefits, which election shall be made no later than five (5) days
before the FCC Determination Date.

     8.   Operating Arrangements.
          ----------------------

     8.1  Construction of Company Systems.
          -------------------------------

          (a)  The Company hereby agrees to construct, or cause its Subsidiaries
to construct, Company Systems covering the Territory on a schedule no less rapid
than is set forth in the Minimum Build-Out Plan. Company Systems shall be
technologically compatible in all

                                      52
<PAGE>

material respects with systems being used in a Majority of the Central and
Southwest Region (including without limitation for the purpose of facilitating
roaming and hand-off between systems), and will to the extent technologically
feasible implement the same User Interface as such systems, with the intention
that the User Interface in Company Systems will not differ from the User
Interface in a Majority of the Central and Southwest Region in a manner that
would be material to customers.

          (b)  The Company and AT&T PCS hereby agree that the Company shall
assume and be obligated to satisfy the construction requirements set forth in 47
CFR 24.203 with respect to the AT&T PCS Retained Licenses in the Territory and
the AT&T PCS Licenses. The Company and AT&T PCS agree from time to time at the
request of the Company or AT&T PCS, as applicable, to provide the other with
information concerning the status of construction of its PCS Systems to enable
such party to determine the level of compliance with such construction
requirements with respect to the AT&T PCS Retained Licenses and AT&T PCS
Licenses, as applicable.

          (c)  The Company will arrange for all necessary microwave relocation
in connection with the AT&T PCS Licenses and pay, assume or (if applicable)
reimburse AT&T PCS or its Affiliates for any obligation to pay, any reasonable
costs incurred by it or AT&T PCS in connection with any such microwave
relocation, provided, that nothing contained herein shall require the Company to
            --------
pay any costs incurred in connection with microwave relocation in connection
with the AT&T PCS Retained Licenses.

     8.2  Service Features. Company Systems will offer the Core Service
          ----------------
Features. Company Systems will also offer, at the written request of AT&T PCS,
additional service features that AT&T PCS has notified the Company it will
provide in a Majority of the Central and Southwest Region, unless the Board of
Directors reasonably determines that the provision of such additional features
would be financially detrimental to the Company. Unless the Board of Directors
makes such a determination, any such additional features shall be adopted within
one hundred twenty (120) days after the request by AT&T PCS. The Critical
Network Elements are set forth on Schedule XI.

     8.3  Quality Standards. The Company shall use commercially reasonable
          -----------------
efforts to cause the Company Systems to comply with the TDMA Quality Standards.
Without limiting the foregoing, with respect to each material portion of a
Company System (such as a city) that the Company places in commercial service,
on or prior to the first anniversary of the date such material portion is placed
in commercial service, the Company shall cause each such material portion to
achieve a level of compliance with the TDMA Quality Standards equal to at least
the average level of compliance achieved by comparable PCS and Cellular Systems
owned and operated by AT&T PCS taking into account, among other things, the
relative stage of development thereof. In the event that the Company fails to
achieve such level of compliance, the Company shall not be deemed to be in
material breach of this provision if such non-compliance is cured within thirty
(30) days of notice thereof from AT&T PCS to the Company, or, if such breach is
not capable of being cured within such thirty (30) day period using

                                      53
<PAGE>

commercially reasonable efforts, within one hundred eighty (180) days of such
notice, provided the Company is using commercially reasonable efforts to cure
        --------
such material breach as soon as reasonably practicable.

     8.4  No Change of Business.
          ---------------------

          (a)  Subject to Section 7.11, the Company will not, and will not
permit any of its Subsidiaries to, without obtaining the prior written consent
of AT&T PCS, do any of the following: (i) conduct, directly or indirectly, any
business other than the Business, (ii) make any material change to the Minimum
Build-Out Plan in the Territory, or (iii) effect any transaction, agreement or
arrangement which has or could reasonably be expected to have the effect of
materially impairing or materially limiting the ability of (x) subscribers to
Cellular Systems and PCS Systems in which AT&T PCS or its Affiliates have an
ownership interest to utilize the Company Systems for roaming, or (y) AT&T PCS
or its Affiliates to resell wireless service on the Company Systems; it being
understood that clause (i) shall not be deemed to restrict the business of the
Company in any Overlap Territory.

          (b)  During the period commencing on the date hereof through and
including the first anniversary of the date hereof, without obtaining the prior
written consent of each SBIC Holder, the Company will not, and will not permit
any of its Subsidiaries, to conduct, directly or indirectly, any business other
than the Business.

          (c)  If at any time during the term of this Agreement AT&T PCS and its
Affiliates determine to discontinue use of TDMA in a Majority of the United
States: (i) the Company will have the right to cease to use TDMA and may adopt
the new technology adopted by AT&T PCS and its Affiliates in a Majority of the
United States or implement any other alternative technology in Company Systems,
and, if it exercises such right, the definition of Company Systems shall be
automatically deemed to be modified by substituting a reference to such new or
alternative technology in lieu of the reference in such definition to TDMA, and
(ii) the obligations of AT&T PCS and its Affiliates pursuant to Section 8.6
shall terminate and be of no further force or effect, unless within sixty (60)
days of notice by AT&T PCS to the Company specifying that AT&T PCS and its
Affiliates have determined to discontinue use of TDMA in a Majority of the
United States, the Company agrees to implement in Company Systems on a
reasonable schedule the new technology adopted by AT&T PCS and its Affiliates in
a Majority of the United States. In the event AT&T PCS desires to test any
technology that is an alternative to TDMA in any PCS System or Cellular System
contiguous to the Territory, AT&T PCS hereby agrees to notify the Company at
least thirty (30) days before conducting such test and will conduct such tests
in a manner that does not have a material adverse effect on the Company.

     8.5  Preferred Provider.
          ------------------

          (a)  The Company and its Subsidiaries shall not market, offer, provide
or resell interexchange services, except (i) interchange services that
constitute Company Communication Services and (ii) interexchange services
procured from AT&T Corp. or an Affiliate thereof

                                      54
<PAGE>

designated by AT&T Corp. Such interexchange services shall be provided by AT&T
Corp. or such Affiliate at the same rates as the rates charged by AT&T Corp. or
such Affiliate to other similarly situated carriers. It is anticipated that such
services will be provided by AT&T Corp. or such Affiliate pursuant to an
agreement incorporating such rates.

          (b)  With respect to services other than interexchange services, when
the Company or a Subsidiary does not itself develop, or is not permitted to
develop, one or more telecommunications services that are offered or provided in
connection with the conduct of its Business (including, by way of example, local
telephone services or voicemail), but instead procures such services, the
Company shall request in writing that AT&T PCS provide such services (directly
or through an Affiliate designated by it) and, provided, that AT&T PCS (or a
designated Affiliate) offers to provide such telecommunication services to the
Company on reasonably competitive terms, the Company or such Subsidiary shall
procure such services from AT&T PCS (or such Affiliate thereof).

     8.6  Exclusivity.
          -----------

          (a)  None of the Stockholders or their respective Affiliates will
provide or resell, or act as the agent for any Person offering, within the
Territory, Company Communications Services except that, AT&T PCS and its
Affiliates may (i) resell, or act as the Company's agent for, Company
Communications Services provided by the Company in accordance with the Resale
Agreement (or any other agreement between AT&T PCS and its Affiliates, on the
one hand, and the Company, on the other hand), including bundling any such
Company Communications Services with other telecommunications services marketed,
offered and provided or resold by such Person, (ii) provide or resell wireless
telecommunications services to or from specific locations (such as buildings or
office complexes), even if the subscriber equipment used in connection with such
service may be capable of routine movement within a limited area (such as a
building or office complex), and even if such subscriber equipment may be
capable of obtaining other telecommunications services beyond such limited area
(which other services may include routine movement beyond such limited area) and
hand-off between the service to such specific locations and such other
telecommunications services; provided, however, that if AT&T PCS or any of its
Affiliates sells such mobile wireless subscriber equipment such equipment shall
be capable of providing (but not necessarily on an exclusive basis) Company
Communications Services and (iii) resell Company Communications Services
provided by a Person other than the Company in any geographical area within the
Territory in which the Company has not placed a Company System into commercial
service (it being understood that in the event that AT&T PCS or any of its
Affiliates that is reselling Company Communication Services of a Person other
than the Company in a geographic area within the Territory at the time the
Company places a portion of a Company System including such geographic area into
commercial service, AT&T PCS or its Affiliates, as applicable, shall terminate
such resale arrangement with respect to such geographic areas within thirty (30)
days of the date such portion of a Company System is placed in commercial
service). AT&T PCS agrees to provide the Company with not less than sixty (60)
days' prior notice of any resale activities described in clause (iii) hereof,
such notice to include a reasonable description of such

                                      55
<PAGE>

resale activities and to use tri-mode phones, to the extent commercially
reasonable in connection with such resale activities. To the extent the "other
telecommunications services" referred to in clause (ii) of the first sentence of
this Section 8.6(a) constitute Company Communications Services, neither AT&T PCS
nor any of its Affiliates or any AT&T Licensee may provide or resell, or act as
agent for any Person offering, such "other telecommunications services" except
Company Communications Services provided by the Company in accordance with the
terms of clause (i) of the first sentence of this Section 8.6(a). Nothing herein
shall be construed to limit in any respect any advertising and promotional and
similar activities by AT&T PCS or its Affiliates or any Cash Equity Investor or
any of its Affiliates.

          (b)  With respect to the markets listed on Schedules 1 and 2 to the
Roaming Agreement, each of AT&T PCS and the Company shall, and shall cause each
of its Affiliates to, in its and such Affiliates' capacity as Home Carrier: (i)
program and direct its authorized dealers to program the subscriber equipment
provided by it or such authorized dealers to its customers, at the time it is
provided to such customers, (to the extent such programming is technologically
feasible) so that the Company or AT&T PCS, as the case may be, and such
Affiliates, in its and such Affiliates' capacity as Serving Carrier, is the
preferred provider of Service in the markets listed on such Schedules 1 and 2,
and (ii) refrain, and direct its authorized dealers to refrain, from inducing
any of its customers to change or, except at such customer's request in the
event the quality of the Company's services do not meet industry standards,
changing the programming described in clause (i) above. For the purpose of this
Section 8.6(b), the terms "Affiliate," "Home Carrier" and "Serving Carrier"
shall have the meanings ascribed thereto in the Roaming Agreement.

     8.7  Other Business; Duties; Etc. Except to the extent expressly set
          ----------------------------
forth in Section 8.6, AT&T PCS, TWR Cellular and each Cash Equity Investor and
any Person affiliated with AT&T PCS, TWR Cellular or a Cash Equity Investor may
engage in or possess an interest in other business ventures, and may engage in
any other activities, of every kind and description (whether or not competitive
with the business of the Company or otherwise affecting the Company),
independently or with others and shall owe no duty or liability to the Company,
the other Stockholders or their Affiliates in connection therewith. None of the
Company or the other Stockholders shall have any rights in or to such
independent ventures or the income or profits therefrom by virtue of this
Agreement or any of the Related Agreements. Without limiting the generality of
the foregoing, in the event that AT&T PCS, TWR Cellular or a Cash Equity
Investor or a Person affiliated with AT&T PCS, TWR Cellular or a Cash Equity
Investor develops inventions which are patentable or are otherwise trade secrets
relevant to the Business, AT&T PCS, TWR Cellular or such Cash Equity Investor or
affiliated Person shall nevertheless retain ownership of such invention and may
license it to the Company if the Company so desires and if mutually satisfactory
terms are agreed to. The Company shall also have the right to develop any
inventions related to the Business deemed desirable by it and to retain title to
such inventions. To the extent that, at law or in equity, AT&T PCS, TWR Cellular
or a Cash Equity Investor or any Person affiliated with AT&T PCS, TWR Cellular
or a Cash Equity Investor would have duties (including fiduciary duties) and
liabilities to the Company, or to the Stockholders, different from or in
addition to those provided in this Section 8.7 and Section 8.6

                                      56
<PAGE>

with respect to the subject matter of such Sections, all rights of the Company
and the Stockholders arising out of such duties and liabilities are hereby
waived and no such Person shall be liable to the Company or to any Stockholder
for its good faith reliance on the provisions of this Section 8.7.

     8.8  Acknowledgments and Termination of Exclusivity.
          ----------------------------------------------

          (a)  The Stockholders hereby expressly acknowledge that none of the
Stockholders would have been willing to enter into this Agreement or make
contributions to the capital of the Company, except for each other Stockholder's
and its Affiliates willingness to enter into this Agreement (including without
limitation the provisions set forth in this Section 8) and the Related
Agreements.

          (b)  Without limiting the foregoing, and without limiting the remedies
that may be available to it at law or in equity, in the event of a Substantial
Company Breach, the obligations of AT&T PCS and its Affiliates (including TWR
Cellular) under Section 8.6 shall automatically terminate and be of no further
force or effect.

          (c)  Upon consummation of a Disqualifying Transaction, AT&T PCS may,
by notice to the Company, terminate its and its Affiliates' (including TWR
Cellular's) obligations under Section 8.6 with respect to any Overlap Territory,
provided that the obligations of AT&T PCS (including TWR Cellular) and its
- --------
Affiliates pursuant to Section 8.6(b)(ii) shall continue in effect with respect
to the then existing customers of the PCS Systems and Cellular Systems owned and
operated by AT&T PCS and its Affiliates (including TWR Cellular) (and their
respective successors pursuant to the applicable Disqualifying Transaction)
before giving effect to such Disqualifying Transaction, so long as such
customers remain customers of such systems and such systems continue to be owned
or operated by AT&T PCS or its Affiliates (including TWR Cellular).
Notwithstanding the foregoing, in the event that the Company exercises its right
pursuant to Section 6.1 to convert all of the shares of Company Stock owned by
AT&T PCS (including TWR Cellular) into Series B Preferred Stock, the reference
in this Section 8.8(c) to the "Overlap Territory" shall be deemed to refer to
the Territory.

     8.9  Equipment, Discounts and Roaming. AT&T PCS acknowledges and agrees
          --------------------------------
that, subject to the terms of Sections 8.1 and 8.5, the Company shall have the
sole discretion to select (a) the equipment vendor(s) for the infrastructure to
be constructed by the Company and (b) billing and other vendors providing goods
and services to the Company. If reasonably requested by the Company, AT&T PCS
agrees to use all commercially reasonable efforts to assist representatives of
the Company in obtaining discounts from any AT&T PCS vendor with whom the
Company is negotiating for the purchase of any such subscriber or infrastructure
equipment or billing services. In addition, AT&T PCS agrees to use all
commercially reasonable efforts to enable the Company to become a party to the
roaming agreements between AT&T PCS and its Affiliates and operators of other
Cellular Systems and PCS Systems or, subject to the Company agreeing to the
obligations thereunder, entitled to the rights and benefits of AT&T PCS under
such roaming agreements. The two immediately preceding sentences shall not be
construed to

                                      57
<PAGE>

require AT&T PCS or its Affiliates to take any action that AT&T PCS or such
Affiliate determines in its sole discretion to be adverse to its interests. AT&T
PCS may develop a roaming clearinghouse for AT&T Licensees, including the
Company, pursuant to which the Company's subscribers that are roaming on PCS or
Cellular Systems with which AT&T PCS or any of its Affiliates have entered into
a roaming agreement will be identified on such PCS or Cellular System as an AT&T
PCS subscriber, and settlement of roaming accounts for such Company subscribers
would be effected first between AT&T PCS and such PCS or Cellular System and
then settled between AT&T PCS and the Company. In the event AT&T PCS provides
such roaming clearinghouse to the Company, the per-subscriber handling charge to
the Company shall be commercially reasonable.

     8.10 ANS Agreement. At the request of the Company, AT&T PCS shall cause
          -------------
AWS to enter into an Advanced Network Services Agreement with the Company,
substantially in the form of Exhibit C.

     8.11 Resale Agreements.
          -----------------

          (a)  From time to time, upon the request of AT&T PCS, the Company
shall enter into a Resale Agreement relating to the Territory, substantially in
the form of Exhibit C to the Securities Purchase Agreement, with AT&T PCS and
any of its Affiliates and, with respect to any geographic area within the
Territory, one other Person designated by AT&T PCS, provided such other Person
                                                    --------
is licensed to provide telecommunications services in such geographic area under
the service marks used by AT&T Corp. and such other Person qualifies as a
reseller under any generally applicable standards the Company establishes for
its resellers from time to time and upon the request of AT&T PCS, the Company
shall enter into an agency agreement authorizing AT&T PCS and any of its
Affiliates and, with respect to any geographic area within the Territory, one
other Person designated by AT&T PCS, provided such other Person is licensed to
                                     --------
provide telecommunications services in such geographic area under the service
marks used by AT&T Corp. and such other Person qualifies as an agent under any
generally applicable standards the Company establishes for its agents from time
to time. Any such agency agreements shall provide that the Company shall pay the
agent a commission at the rate then generally offered to the Company's agents
and shall otherwise be on commercially reasonable terms. At no time shall there
be more than one Person (other than AT&T PCS and its Affiliates) designated by
AT&T PCS as a reseller or an agent with respect to any geographic area within
the Territory.

          (b)  It is the intention of the parties that, in light of AT&T's PCS's
equity interest in the Company and the other arrangements between AT&T PCS and
its Affiliates and the Company (including the roaming revenues anticipated to be
earned by the Company from subscribers of AT&T PCS and its Affiliates), the
rates, terms and conditions of Service (as defined in the Resale Agreement)
provided by the Company pursuant to the Resale Agreement or any other agreement
between AT&T PCS or such other reseller and the Company shall be at least as
favorable to AT&T PCS or such other reseller, taken as a whole, as the rates,
terms and conditions of Service, taken as a whole, provided by the Company to
any other Customer (as

                                      58
<PAGE>

defined in the Resale Agreement) and, to the extent permitted by applicable law,
such rates, terms and conditions shall be superior to those provided to any
other Customer. Without limiting the foregoing, the rate plans offered by the
Company pursuant to any Resale Agreement shall be designed to result in the
average actual rate per minute paid by the Reseller for Service being at least
25% below the weighted average actual rate per minute billed by the Company to
its subscribers for access and air time, but excluding revenues for features,
taxes, toll or other non-rate items. The Company and Reseller shall negotiate
commercially reasonable reductions to such resale rate based upon increased
volume commitments (including roaming charges incurred by subscribers of AT&T
PCS and its Affiliates).

     8.12 Non-Solicitation.
          ----------------

          (a)  AT&T PCS hereby covenants and agrees that from and after the date
hereof until six months after the date on which it shall cease to own any Equity
Securities that neither AT&T PCS nor its Affiliates (including TWR Cellular)
shall solicit for employment any employee of the Company; provided however that,
                                                          -------- -------
nothing contained in this Section 8.12(a) shall prevent AT&T PCS or its
Affiliates (including TWR Cellular) from engaging in a general solicitation for
employment that is not directed at employees of the Company.

          (b)  The Company hereby covenants and agrees that from and after the
date hereof until six months after the date on which AT&T PCS or its Affiliates
(including TWR Cellular) shall cease to own any Equity Securities that neither
the Company nor its Affiliates (including TWR Cellular) shall solicit for
employment any employee of the AT&T PCS or its Affiliates; provided, however
that nothing contained in this Section 8.12(b) shall prevent the Company or its
Affiliates (including TWR Cellular) from engaging in a general solicitation for
employment that is not directed at employees of AT&T PCS and its Affiliates.

     8.13 Co-Location. Except in any portion of the Territory as to which the
          -----------
provisions of Section 8.6 shall have been terminated: (a) the Company agrees to
permit on commercially reasonable terms AT&T PCS and its Affiliates (including
TWR Cellular) to install, operate and maintain cell site equipment owned or used
by AT&T PCS and its Affiliates (including TWR Cellular) in their respective
businesses on the towers, buildings and other locations at which the Company's
cell site equipment is installed, operated and maintained, and (b) AT&T PCS and
its Affiliates (including TWR Cellular) agree to permit on commercially
reasonable terms the Company to install, operate and maintain cell site
equipment owned or used by the Company in its business on the towers, buildings
and other locations at which AT&T PCS and its Affiliates (including TWR
Cellular) cell site equipment is installed, operated and maintained.

     9.   After-Acquired Shares; Recapitalization.
          ---------------------------------------

     9.1  After Acquired Shares; Recapitalization.
          ---------------------------------------

          (a)  All of the provisions of this Agreement shall apply to all of the
shares of Equity Securities now owned or hereafter issued or transferred to a
Stockholder or to his, her or

                                      59
<PAGE>

its Affiliated Successors in consequence of any additional issuance, purchase,
exchange or reclassification of shares of Equity Securities, corporate
reorganization, or any other form of recapitalization, or consolidation, or
merger, or share split, or share dividend, or which are acquired by a
Stockholder or its Affiliated Successors in any other manner.

          (b)  Whenever the number of outstanding shares of Equity Securities is
changed by reason of a stock dividend or a subdivision or combination of shares
effected by a reclassification of shares, each specified number of shares
referred to in this Agreement shall be adjusted accordingly.

     9.2  Amendment of Restated Certificate. Whenever the number of shares of
          ---------------------------------
authorized Common Stock is not sufficient in order to issue shares of Common
Stock upon conversion of Preferred Stock in accordance with the Restated
Certificate, (i) the Company shall promptly amend the Restated Certificate in
order to authorize a sufficient number of shares of Common Stock, and (ii) each
Stockholder agrees to vote its shares of Preferred Stock and Common Stock in
favor of such amendment.

     10.  Share Certificates.
          ------------------

     10.1 Restrictive Endorsements; Replacement Certificates. Each certificate
          --------------------------------------------------
representing the shares of Equity Securities now or hereafter held by a
Stockholder (including any such certificate delivered upon conversion of the
Preferred Stock) or delivered in substitution or exchange for any of the
foregoing certificates shall be stamped with legends in substantially the
following form:

          (a)  "The shares represented by this Certificate are subject to a
Stockholders' Agreement dated as of July 17, 1998, a copy of which is on file at
the offices of the Company and will be furnished by the Company to the holder
hereof upon written request. Such Stockholders' Agreement provides, among other
things, for the granting of certain restrictions on the sale, transfer, pledge,
hypothecation or other disposition of the shares represented by this
Certificate, and that under certain circumstances, the holder hereof may be
required to sell the shares represented by this Certificate. By acceptance of
this Certificate, each holder hereof agrees to be bound by the provisions of
such Stockholders' Agreement. The Company reserves the rights to refuse to
transfer the shares represented by this Certificate unless and until the
conditions to transfer set forth in such Stockholders' Agreement have been
fulfilled"; and

          (b)  "The securities represented by this Certificate have been
acquired for investment and have not been registered under the Securities Act of
1933, as amended (the "Act"), or under any state securities or `Blue Sky' laws.
Said securities may not be sold, transferred, assigned, pledged, hypothecated or
otherwise disposed of, unless and until registered under the Act and the rules
and regulations thereunder and all applicable state securities or `Blue Sky'
laws or exempted therefrom under the Act and all applicable state securities or
`Blue Sky' laws."

                                      60
<PAGE>

     Each Stockholder agrees that he, she or it will deliver all certificates
for shares of Equity Securities owned by him, her or it to the Company for the
purpose of affixing such legends thereto.

          (c)  Upon receipt of evidence reasonably satisfactory to the Company
of the loss, theft, destruction or mutilation of any certificate representing
shares of Equity Securities subject to this Agreement and of a bond or other
indemnity reasonably satisfactory to the Company, and upon reimbursement to the
Company of all reasonable expenses incident thereto, and upon surrender of such
certificate, if mutilated, the Company will make and deliver a new certificate
of like tenor in lieu of such lost, stolen, destroyed or mutilated certificate.

     11.  Equitable Relief. The parties hereto agree and declare that legal
          ----------------
remedies may be inadequate to enforce the provisions of this Agreement and that,
in addition to being entitled to exercise all of the rights provided herein or
in the Restated Certificate or granted by law, including recovery of damages,
equitable relief, including specific performance and injunctive relief, may be
used to enforce the provisions of this Agreement.

     12.  Miscellaneous.
          -------------

     12.1 Notices. All notices or other communications hereunder shall be in
          -------
writing and shall be given (and shall be deemed to have been duly given upon
receipt) by delivery in person, by facsimile transmission, or by registered or
certified mail (return receipt requested), postage prepaid, with an
acknowledgment of receipt signed by the addressee or an authorized
representative thereof, addressed as follows (or to such other address for a
party as shall be specified by like notice; provided that notice of a change of
address shall be effective only upon receipt thereof:

          If to AT&T PCS or TWR Cellular:

          c/o AT&T Wireless Services, Inc.
          5000 Carillon Point
          Kirkland, Washington 98033
          Attention:  William W. Hague
          Telephone: (425) 828-8461
          Facsimile: (425) 828-8451

          With a copy to:

          AT&T Corp.
          295 North Maple Avenue
          Basking Ridge, NJ 07920
          Attention:  Corporate Secretary
          Telephone:
          Facsimile:  (908) 953-4657

                                 61
<PAGE>

               and

               Friedman Kaplan & Seiler LLP
               875 Third Avenue, 8th Floor
               New York, New York 10022
               Attention:  Daniel M. Taitz
               Telephone:  (212) 833-1109
               Facsimile:  (212) 355-6401

               and

               Rubin Baum Levin Constant & Friedman
               30 Rockefeller Plaza
               New York, New York 10112
               Attention:  Gregg S. Lerner, Esq.
               Telephone:  (212) 698-7705
               Facsimile:  (212) 698-7825

          If to a Cash Equity Investor, to its address set forth on Schedule I.

          With a copy to:

               Mayer, Brown & Platt
               1675 Broadway
               New York, New York 10019
               Attention: Mark S. Wojciechowski, Esq.
               Telephone: (212) 506-2525
               Facsimile: (212) 262-1910

          If to a Management Stockholder or to the Company, to the address set
forth in the Securities Purchase Agreement.

          With a copy to each other party sent to the addresses set forth in
this Section 12.1.

     12.2 Entire Agreement; Amendment; Consents.
          -------------------------------------

               (a)  This Agreement constitutes the entire agreement among the
parties with respect to the subject matter hereof and supersedes all other prior
agreements and understandings, both written and oral, among the parties or any
of them with respect to the subject matter hereof.

               (b)  No change or modification of this Agreement shall be valid,
binding or enforceable unless the same shall be in writing and signed by the
Company and the Beneficial Owners of a majority of the shares of Class A Voting
Common Stock, including

                                      62
<PAGE>

AT&T PCS, 66 2/3% of the Class A Voting Common Stock Beneficially Owned by the
Cash Equity Investors, and 66-2/3% of the Class A Voting Common Stock
Beneficially Owned by the Management Stockholders; provided, however, that in
                                                   --------  -------
the event any party hereto shall cease to own any shares of Equity Securities
such party hereto shall cease to be a party to this Agreement and the rights and
obligations of such party hereunder shall terminate, except to the extent
otherwise provided in Section 4.7(a) with respect to any Unfunded Commitment.

               (c)  Whenever in this Agreement the consent or approval of a
Stockholder is required, except as expressly provided herein, such consent or
approval may be given or withheld in the sole and absolute discretion of each
Stockholder.

     12.3 Term.
          ----

               (a)  Subject to Sections 12.3(b), 12.3(c) and 12.4, this
Agreement shall terminate upon the earliest to occur of any of the following
events:

                    (i)   The consent in writing of all of the parties hereto;
or

                    (ii)  The expiration of eleven (11) years from the date of
execution and delivery of this Agreement; or

                    (iii) One Stockholder shall Beneficially Own all of the
Class A Voting Common Stock.

               (b)  Notwithstanding anything contained herein to the contrary,
(i) the provisions of Sections 3.2, 3.3, 3.4, 3.5, 4.1(a), 4.5 (other than
Section 4.5(b)), 7.1, 7.2 and 7.6 shall terminate on the earlier to occur of a
termination pursuant to Section 12.3(a) and the IPO Date, (ii) the provisions of
Sections 3 and 4 shall terminate on the earlier to occur of a termination
pursuant to Section 12.3(a) and the expiration of ten (10) years from the date
hereof, (iii) the provisions of Sections 3.1(e) (relating to AT&T PCS' right to
approve the directors selected by the holders of the Voting Preference Stock
pursuant to Section 3.1(e)(ii) and any replacement for Messrs. Vento or Sullivan
to the Board of Directors), 3.11(a) (relating to AT&T PCS' right to approve the
directors selected by the Cash Equity Investors pursuant to Section 3.11(a)(ii)
and any individuals selected by the Management Stockholders and any replacement
thereof to the Board of Directors), 4.7(b), 7.4, 7.6 and 8.4(a), shall
terminate, and neither the Company nor any Stockholder shall be required to
obtain AT&T PCS's prior written consent as required under such Sections, on the
earlier to occur of (i) a termination pursuant to Section 12.3(a) and (ii) (x)
with respect to the period prior to the eighth anniversary of the date hereof,
the date on which AT&T PCS and TWR Cellular shall cease to Beneficially Own, in
the aggregate, more than two-thirds of the number of shares of Series A
Preferred Stock that AT&T PCS and TWR Cellular Beneficially Own, in the
aggregate, on the date hereof and (y) with respect to the period after the
eighth anniversary of the date hereof on which AT&T PCS and TWR Cellular shall
cease to Beneficially Own, in the aggregate, more than two-thirds of the number
of shares of Class A Voting Common Stock that AT&T PCS and TWR Cellular

                                      63
<PAGE>

Beneficially Owns, in the aggregate, on such eighth anniversary date, (iv) the
provisions of Section 3.1 shall terminate on the later to occur of (x) the date
that the holders of shares of Voting Preference Stock shall vote as a class with
holders of Class A Voting Common Stock, and (y) immediately prior to the IPO
Date; it being understood that in such event the Board of Directors on and as of
the IPO Date shall be determined in accordance with Section 3.11 and (v) the
provisions of 3.6 shall terminate on the date that the holders of shares of
Voting Preference Stock shall vote as a class with holders of Class A Voting
Common Stock. Notwithstanding anything contained herein to the contrary, the
provisions of Section 3.11(a)(ii), (b), (c) and (d) shall terminate on the
earlier to occur of a termination pursuant to Section 12.3 (a) and the date
after the IPO Date.

          (c)  (i)  Notwithstanding anything contained herein to the contrary,
in the event the Cash Equity Investors shall Beneficially Own less than (I) one-
half but more than one-quarter of the number of shares of Common Stock
Beneficially Owned by the Cash Equity Investors on the date hereof, the number
of directors the Cash Equity Investors shall be permitted to designate under
Section 3.1(a) shall be reduced to one, or (II) one-quarter of the number of
shares of Common Stock Beneficially Owned by the Cash Equity Investors on the
date hereof, the provisions of Section 3.1(a) and the provisions of Sections
3.1(e) (relating to the Cash Equity Investors' right to approve the directors
selected by the holders of the Voting Preference Stock pursuant to Section
3.1(e)(i) and (ii)) and the right to approve any director that replaces Messrs.
Vento or Sullivan on the Board of Directors shall terminate, and neither the
Company nor any Stockholder shall be required to obtain the Cash Equity
Investors' prior written consent as required under such Sections. In the event
the number of directors the Cash Equity Investors are entitled to designate is
reduced pursuant to Section 12.3(c)(i)(I), two of the directors designated by
the Cash Equity Investors under Section 3.1(a)(i) shall resign (or the other
directors or Stockholders shall remove them from the Board of Directors) and the
remaining directors shall take such action so that the number of directors
constituting the entire Board of Directors shall be reduced accordingly. In the
event the provisions of Section 3.1(a) and 3.1(e) are terminated pursuant to
Section 12.3(c)(i)(II), the directors designated by the Cash Equity Investors
pursuant to Section 3.1(a) and the directors designated pursuant to Section
3.1(e)(i) shall resign (or the other directors or Stockholders shall remove them
from the Board of Directors) and the remaining directors shall take such action
so that the number of directors constituting the entire Board of Directors is
reduced to seven (7) individuals. The holders of the Voting Preference Stock
shall thereafter have the right to designate three (3) individuals to the Board
of Directors provided each such individual is acceptable to AT&T PCS (so long as
AT&T PCS and TWR Cellular continues to Beneficially Own, in the aggregate, more
than two-thirds of the Common Stock Beneficially Owned by AT&T PCS and TWR
Cellular, in the aggregate, on the date hereof). For all purposes of this
Agreement (other than Section 3.1(a)), all references in this Agreement to
directors designated pursuant to Section 3.1(e)(ii) shall thereafter be deemed
to refer to the three (3) directors designated pursuant to the immediately
preceding sentence.

               (ii)  Notwithstanding anything contained herein to the contrary,
in the event that the composition of the Board of Directors shall be determined
in accordance with Section 3.11 and the Cash Equity Investors shall Beneficially
Own less than (I) one-half but

                                      64
<PAGE>

more than one-quarter of the number of shares of Common Stock Beneficially Owned
by the Cash Equity Investors on the date hereof, then notwithstanding the
provisions of Section 3.11 the number of directors the Cash Equity Investors
shall be permitted to designate under Section 3.11(a), shall be reduced to one,
or (II) one-quarter of the number of shares of Common Stock Beneficially Owned
by the Cash Equity Investors on the date hereof, the provisions of Section
3.11(a), shall terminate. In the event that the composition of the Board of
Directors shall be determined in accordance with Section 3.11 and the number of
directors the Cash Equity Investors are entitled to designate is reduced
pursuant to Section 12.3(c)(ii)(I), one of the directors designated by the Cash
Equity Investors under Section 3.11(a)(i) shall resign (or the other directors
or Stockholders shall remove them from the Board of Directors) and the remaining
directors shall take such action so that the number of directors constituting
the entire Board of Directors shall be reduced accordingly. In the event the
composition of the Board of Directors shall be determined in accordance with
Section 3.11 and the provisions of Section 3.11(a) are terminated pursuant to
Section 12.3(c)(ii)(II), the directors designated by the Cash Equity Investors
pursuant to Section 3.11(a) shall resign (or the other directors or Stockholders
shall remove them from the Board of Directors) and the remaining directors shall
take such action so that the number of directors constituting the entire Board
of Directors is reduced by two (2) individuals. Messrs. Sullivan and Vento (in
each case so long as he is an officer of the Company) shall thereafter have the
right to designate two (2) individuals to the Board of Directors provided such
individual is acceptable to AT&T PCS (so long as AT&T PCS and TWR Cellular
continue to Beneficially Own more than two-thirds of the Common Stock
Beneficially Owned by AT&T PCS and TWR Cellular, in the aggregate, on the date
hereof). For all purposes of this Agreement (other than Section 3.11(a)), all
references in this Agreement to directors designated pursuant to Section
3.11(a)(ii) shall thereafter be deemed to refer to the two (2) directors
designated pursuant to the immediately preceding sentence.

     12.4 Survival. Nothing contained in Section 12.3 shall impair any rights or
          --------
obligations of any party hereto arising prior to the time of the termination of
this Agreement, or which may arise by an event causing the termination of this
Agreement. The provisions of Section 5 shall survive any termination of this
Agreement pursuant to Section 12.3 and shall continue in full force and effect
until the twentieth anniversary of the date hereof. The provisions of Section
7.7 and Article 12 shall survive the termination of this Agreement.

     12.5 Waiver. No failure or delay on the part of any Stockholder in
          ------
exercising any right, power or privilege hereunder, nor any course of dealing
between the Company and any Stockholder shall operate as a waiver thereof nor
shall any single or partial exercise of any right, power or privilege hereunder
preclude the simultaneous or later exercise of any other right, power or
privilege. The rights and remedies herein expressly provided are cumulative and
not exclusive of any rights and remedies which any Stockholder would otherwise
have. No notice to or demand on the Company in any case shall entitle the
Company to any other or further notice or demand in similar or other
circumstances or constitute a waiver of the rights of the Stockholders or any of
them to take any other or further action in any circumstances without notice or
demand.

                                      65
<PAGE>

     12.6  Obligations Several.  The obligations of each Stockholder under this
           -------------------
Agreement shall be several with respect to each such Stockholder.

     12.7  Governing Law.  This Agreement shall be governed and construed in
           -------------
accordance with the law of the State of Delaware.

     12.8  Dispute Resolution.
           ------------------
                 (a)  The parties shall use and strictly adhere to the following
dispute resolution processes, except as otherwise expressly provided in this
Section 12.8, to resolve any and all disputes, controversies or claims, whether
based on contract, tort, statute, fraud, misrepresentation or any other legal or
equitable theory (hereinafter, "Dispute(s)"), arising out of or relating to this
Agreement (and any prior agreement this Agreement supersedes), including without
limitation, its making, termination, non-renewal, its alleged breach and the
subject matter of this Agreement (e.g., products or services furnished hereunder
or those related to those furnished):

                 (b)  The parties shall first attempt to settle each Dispute
through good faith negotiations. The aggrieved party shall initiate such
negotiations by giving the other party(ies) written notice of the existence and
nature of the Dispute. The other party(ies) shall in a writing to the aggrieved
party acknowledge such notice of Dispute within ten (10) business days. Such
acknowledgment may also set forth any Dispute that the acknowledging party
desires to have resolved in accordance with this Section.

                 (c)  Thereafter, if any Dispute is not resolved by the parties
through negotiation within thirty (30) calendar days of the date of the notice
of acknowledgment, either party may terminate informal negotiations with respect
to that Dispute and request that the Dispute be submitted to non-binding
mediation. Any mediation of a Dispute under this Section shall be conducted by
the CPR Institute for Dispute Resolution ("CPR") in accordance with the then
current CPR "Model Mediation Procedure for Business Disputes" ("Model
Procedures") and the procedures specified in this Section to the extent that
they conflict with, modify or add to such Model Procedures. Any demand for
initiation of mediation of a Dispute must be given in writing to both the other
party(ies) involved and to the CPR and must set forth the nature of the Dispute.
Each party to the mediation shall bear its own expenses with respect to
mediation and the parties shall share equally the fees and expenses of the CPR
and the mediator. The failure by a party to timely pay its share of the
mediation fees and expenses of the CPR and the mediator shall be a bar to
arbitration under Section 12.8(d) of that party's Dispute(s). Any mediation
under this Section shall be conducted within the State of New York at a site
selected by the mediator that is reasonably convenient to the parties. Each
party shall be represented in the mediation by representatives having final
settlement authority with respect to the Dispute(s). All information and
documents disclosed in mediation by any party shall remain private and
confidential to the disclosing party and may not be disclosed by any party
outside the mediation. No privilege or right with respect to any information or
document disclosed in mediation shall be waived or lost by such disclosure.

                                      66
<PAGE>

                 (d)  Any Dispute not finally resolved after negotiation and
mediation in accordance with Section 12.8(b) and 12.8(c) shall, upon the written
demand of any involved party delivered to the other party(ies) and the CPR, be
finally resolved through binding arbitration in accordance with the then current
CPR "Non-Administered Arbitration Rules" ("Arbitration Rules") and the
procedures specified in this Section to the extent that they conflict with,
modify or add to such Arbitration Rules. Any Dispute of any other party not
finally resolved after negotiation and mediation pursuant to this Section may be
made a part of the arbitration demanded by another party, provided that the
written notice of demand for arbitration of that Dispute is received by the CPR
before selection of an arbitrator by the CPR. Any demand for arbitration of a
Dispute received by the CPR after the selection of the arbitrator must be
resolved through a separate arbitration proceeding in accordance with this
Section. Each party shall bear its own expenses with respect to arbitration and
the parties shall share equally the fees and expenses of the CPR and the
arbitrator. Unless otherwise mutually agreed by the parties in writing, the
arbitration shall be conducted by one (1) neutral arbitrator. The arbitration
shall be conducted in the State of New York at a site selected by the arbitrator
that is reasonably convenient to the parties. The arbitrator shall be bound by
and strictly enforce the terms of the Agreement and may not limit, expand, or
otherwise modify the terms of this Agreement. The arbitrator shall make a good
faith effort to apply applicable law, but an arbitration decision and award
shall not be subject to review because of errors of law. The arbitrator shall
have the sole authority to resolve issues of the arbitrability of any Dispute,
including the applicability or running of any statute of limitation. The
arbitrator shall not have power to award damages in connection with any Dispute
in excess of actual compensatory damages or to award punitive damages and each
party irrevocably waives any claim thereto. The arbitrator shall not have the
power to order pre-hearing discovery of documents or the taking of depositions.
The arbitrator may compel, to the extent provided by the FAA, attendance of
witnesses and the production of documents at the hearing. The arbitrator's
decision and award shall be made and delivered to the parties within six (6)
months of selection of the arbitrator by the CPR and judgment on the award by
the arbitrator may be entered by any court having jurisdiction thereof.

                 (e)  This Section shall be interpreted, governed by and
enforced in accordance with the United States Arbitration Act, 9 U.S.C. Sections
1-14 (the "Federal Arbitration Act" or "FAA"). The laws of the State of New
York, except those pertaining to choice of law, arbitration of disputes and
those pertaining to the time limits for bringing an action that conflict with
the terms of this Dispute Resolution provision, shall govern all other
substantive matters pertaining to the interpretation and enforcement of the
other terms of this Agreement with respect to any Dispute. Any party to a
Dispute, which is the subject of a notice initiating the Dispute resolution
procedures under this Section, may seek a temporary injunction in any state or
federal court of competent jurisdiction to the limited extent necessary to
preserve the status quo during the pendency of final resolution of a Dispute in
accordance with this Section. If court proceedings to stay litigation of a
Dispute or compel arbitration of a Dispute are necessary, the party who
unsuccessfully opposes such proceedings shall pay all associated costs,
expenses, and attorneys' fees that the other party reasonably incurs in
connection with such court proceedings. An order to pay such costs, expenses and
attorney fees shall become part of any decision and award of the arbitrator of
the Dispute. An arbitrator appointed pursuant

                                      67
<PAGE>

to Section 12.8(d) to resolve a Dispute may also issue such injunctive orders
and shall have the power to modify or dissolve the injunctive order of any court
to the extent it pertains to the Dispute which the arbitrator has been selected
to finally resolve. The parties, their representatives, other participants, and
the mediator and arbitrator shall hold the existence, content, and result of the
mediation and arbitration of a Dispute in confidence except to the limited
extent necessary to enforce a final settlement agreement or to obtain and secure
enforcement of or a judgment on an arbitration decision and award.


                 (f)  The statute(s) of limitation applicable to any Dispute
shall be tolled upon initiation of the Dispute resolution procedures under this
Section and shall remain tolled until the Dispute is resolved by mediation or
arbitration under this Section. Tolling shall cease if the aggrieved party with
a Dispute does not initiate mediation within sixty (60) calendar days after good
faith negotiations are terminated by any party and, after mediation of a
Dispute, if the aggrieved party with a Dispute does not initiate a demand for
arbitration within sixty (60) calendar days after mediation is terminated.
However, any Dispute is forever barred that has not expressly been made the
subject of the written notice required under Section 12.8(b) above within 365
days after the date the Party asserting the Dispute first knows or should have
known of the existence of the acts or omissions that give rise to such Dispute.


                 (g)  Unless the parties mutually agree in writing, Disputes
relating to trademarks (including service marks), patents and copyrights shall
not be resolved in accordance with the Dispute resolution procedures set forth
in this Section and shall be resolved as otherwise provided in this Agreement.


                 (h)  The Company and each of the Stockholders hereby
irrevocably consents to the exclusive jurisdiction of the state or federal
courts in the State of New York, and all state or federal courts competent to
hear appeals therefrom, over any actions which may be commenced against any of
them under or in connection with this Agreement. The Company and each
Stockholder hereby irrevocably waive, to the fullest extent permitted by
applicable law, any objection which any of them may now or hereafter have to the
laying of venue of any such dispute brought in such court or any defense of
inconvenient forum for the maintenance of such dispute in the Southern District
of New York and New York County. The Company and each Stockholder hereby agree
that a judgment in any such dispute may be enforced in other jurisdictions by
suit on the judgment or in any other manner provided by law. The Company and
each Stockholder hereby consent to process being served by any party to this
Agreement in any actions by the transmittal of a copy thereof in accordance with
the provisions of Section 12.1.

     12.9  Benefit and Binding Effect; Severability. This Agreement shall be
           ----------------------------------------
binding upon and shall inure to the benefit of the Company, its successors and
assigns, and each of the Stockholders and their respective executors,
administrators and personal representatives and heirs and permitted assigns. If
any term or other provision of this Agreement is invalid, illegal or incapable
of being enforced by any law or public policy or any listing requirement
applicable to the Common Stock, all other terms and provisions of this Agreement
shall nevertheless remain in full force and effect. Upon such determination that
any term or other provision is invalid,

                                      68
<PAGE>

illegal or incapable of being enforced, the parties hereto affected by such
determination in any material respect shall negotiate in good faith to modify
this Agreement so as to effect the original intent of the parties as closely as
possible in an acceptable manner in order that the provisions hereof are given
effect as originally contemplated to the greatest extent possible.

     12.10  Amendment of By-Laws. The Stockholders agree that the terms of this
            --------------------
Agreement shall supersede any inconsistent provision that is contained in the
Restated By-Laws and, to the extent required by Delaware law or the Restated By-
Laws, this Agreement shall be deemed to constitute a written action taken by the
Stockholders of the Company and shall be deemed an amendment of the Restated By-
Laws.

     12.11  Authorized Agent of AT&T PCS. AT&T PCS hereby authorizes Wireless
            ----------------------------
PCS, Inc. as its agent, with full power to execute, in the name of and on behalf
of AT&T PCS, the Related Agreements to which AT&T PCS is a party and any and all
other documents that AT&T PCS is required to execute and deliver, and to give
and receive all notices, requests, consents, amendments, demands and other
communications to or from AT&T PCS, hereunder or thereunder. Each party hereto
(other than AT&T PCS) shall be entitled to rely on the full power and authority
of Wireless PCS, Inc. to act on behalf of AT&T PCS in accordance with this
Section 12.11. Nothing contained in this Section 12.11 shall relieve AT&T PCS
from complying with its obligations under this Agreement or any of the Related
Agreements to which it is a party.

     12.12  FCC Approval. Notwithstanding anything contained in this Agreement
            ------------
to the contrary, no transaction or action contemplated herein shall be
consummated and no interests or rights transferred, converted or exchanged prior
to receiving FCC approval with respect thereto to the extent such approval is
necessary.

     12.13  Expenses.  The Company shall pay the reasonable fees and expenses of
            --------
counsel to the Stockholders incurred in connection with the preparation,
negotiation and execution of this Agreement and of any amendment or modification
hereof. Except as provided in Sections 5(g) and 12.14, all other attorneys' fees
incurred by the Stockholders in connection with this Agreement (including,
without limitation, in the preparation of notices (and responses thereto) and
consents) shall be borne by the Stockholder(s) incurring such fees.

     12.14  Attorneys' Fees.  In any action or proceeding brought to enforce any
            ---------------
provision of this Agreement, or where any provision hereof is validly asserted
as a defense, the successful party shall be entitled to recover reasonable
attorneys' fees in addition to any other available remedy.

     12.15  Headings. The captions in this Agreement are for convenience only
            --------
and shall not be considered a part of or affect the construction or
interpretation of any provision of this Agreement.

                                      69
<PAGE>

     12.16  Counterparts.  This Agreement may be executed in two or more
            ------------
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

                                      70
<PAGE>

     IN WITNESS WHEREOF, each of the parties has executed or consent this
Agreement to be executed by its duly authorized officers as of the date first
written above.

                              AT&T WIRELESS PCS INC.

                              By: /s/ Mark U. Thomas
                                  ---------------------------
                                  Name: Mark U. Thomas
                                  Title: V.P. & C.F.O

                              TWR CELLULAR, INC.

                              By: /s/ Mark U. Thomas
                                  ---------------------------
                                  Name: Mark U. Thomas
                                  Title: V.P

                              TELECORP PCS, INC.

                              By: /s/ Thomas H. Sullivan
                                  ---------------------------
                                  Name:  Thomas H. Sullivan
                                  Title: President

CASH EQUITY INVESTORS:        CB CAPITAL INVESTORS, L.P.

                              By: CB Capital Investors, Inc.,
                                  its general partner

                              By: /s/ Michael R. Hannon
                                  ---------------------------
                                  Name:  Michael R. Hannon
                                  Title: General Partner

                              NORTHWOOD VENTURES LLC

                              By: /s/ Peter G. Schiff
                                  ---------------------------
                                  Name: Peter G. Schiff
                                  Title: President


                                      71
<PAGE>

                              NORTHWOOD CAPITAL PARTNERS LLC

                              By: /s/ Peter G. Schiff
                                  -------------------------------
                                  Name:  Peter G. Schiff
                                  Title: President



                              ONELIBERTY FUND III, L.P.

                              By: /s/ Joseph T. McCullen, Jr.
                                  -------------------------------
                                  Name:  Joseph T. McCullen, Jr.
                                  Title: General Partner


                              ONELIBERTY FUND IV, L.P.

                              By: /s/ Joseph T. McCullen, Jr.
                                  -------------------------------
                                  Name:  Joseph T. McCullen, Jr.
                                  Title: General Partner


                              MEDIA/COMMUNICATIONS INVESTORS
                              LIMITED PARTNERSHIP

                              By: M/C Investor General Partner - J. Inc.
                                  its general partner

                                  By: /s/ James F. Wade
                                      ---------------------------
                                      Name:  James F. Wade
                                      Title: President
<PAGE>

                              MEDIA/COMMUNICATIONS PARTNERS III
                              LIMITED PARTNERSHIP

                              By: M/CP III General Partner - J. Inc.,
                                  a general partner

                              By: M/CP III General Partner - J. Inc.,
                                  its general partner

                                  By: /s/ James F. Wade
                                      ---------------------------
                                      Name:  James F. Wade
                                      Title: President

                              EQUITY-LINKED INVESTORS-II

                              By: ROHIT M. DESAI ASSOCIATES-II,
                                  its general partner

                                  By: /s/ Frank J. Pados, Jr.
                                      ---------------------------
                                      Name:  Frank J. Pados, Jr.
                                      Title: Attorney-in-Fact

                              PRIVATE EQUITY INVESTORS III, L.P.

                              By: ROHIT M. DESAI ASSOCIATES III,
                                  its general partner

                                  By: /s/ Frank J. Pados, Jr.
                                      ---------------------------
                                      Name:  Frank J. Pados, Jr.
                                      Title: Attorney-in-Fact

                                      75
<PAGE>

                              HOAK COMMUNICATIONS PARTNERS, L.P.

                              By: HCP Investment, L.P.,
                                  its general partner

                              By: Hoak Partners, L.L.C.,
                                  its general partner

                                  By: /s/ James M. Hoak
                                      ----------------------------
                                      Name:  James M. Hoak
                                      Title: Manager

                              HCP CAPITAL FUND, L.P.

                              By: James M. Hoak & Co.,
                                  its general partner

                                  By: /s/ James M. Hoak
                                  -------------------------------
                                      Name:  James M. Hoak
                                      Title: Chairman

                              ENTERGY TECHNOLOGY HOLDING
                              COMPANY

                              By:  /s/ John A. Brayman
                                  -------------------------------
                                  Name:  John A. Brayman
                                  Title: President

                              TORONTO DOMINION INVESTMENTS INC.

                              By:  /s/ Martha Gariepy
                                  -------------------------------
                                  Name:  Martha Gariepy
                                  Title: Vice President

                                      76
<PAGE>

                              HOAK COMMUNICATIONS PARTNERS, L.P.

                              By: HCP Investment, L.P.,
                                  its general partner

                              By: Hoak Partners, L.L.C.,
                                  its general partner

                                  By:  /s/ James M. Hoak
                                      ----------------------------
                                      Name:  James M. Hoak
                                      Title: Manager

                              HCP CAPITAL FUND, L.P.

                              By: James M. Hoak & Co.,
                                  its general partner

                                  By:  /s/ James M. Hoak
                                      ----------------------------
                                      Name:  James M. Hoak
                                      Title: Chairman

                              ENTERGY TECHNOLOGY HOLDING
                              COMPANY

                              By:  /s/ John A. Brayman
                                  --------------------------------
                                  Name:  John A. Brayman
                                  Title: President

                              TORONTO DOMINION INVESTMENTS INC.

                              By: /s/ Martha L. Gariepy
                                  --------------------------------
                                  Name:  Martha Gariepy
                                  Title: Vice President

                                      78
<PAGE>

                              WHITNEY EQUITY PARTNERS, L.P.

                              By: J.H.Whitney Equity Partners, L.L.C.,
                                  Its General Partner

                                  By: /s/ Daniel J. O'Brien
                                      ----------------------------
                                      Name:  Daniel J. O'Brien
                                      Title: Member



                              WHITNEY STRATEGIC PARTNERS III, L.P.

                              By: J.H.Whitney Equity Partners III, L.L.C.,
                                  Its General Partner

                                  By: /s/ Daniel J. O'Brien
                                      ----------------------------
                                      Name:  Daniel J. O'Brien
                                      Title: Member

                              J.H. WHITNEY III, L.P.

                              By: J.H.Whitney Equity Partners III, L.L.C.,
                                  Its General Partner

                                  By: /s/ Daniel J. O'Brien
                                      ----------------------------
                                      Name:  Daniel J. O'Brien
                                      Title: Member

                                      79
<PAGE>

                              GILDE INTERNATIONAL B.V.

                              By: /s/ Joseph T. McCullen, Jr.
                                  --------------------------------
                                  Name:  Joseph T. McCullen, Jr.
                                  Title: Attorney-in-Fact

                                      80
<PAGE>

                              /s/ Thomas Sullivan
                              -------------------------------
                              Thomas Sullivan



                              /s/ Gerald Vento
                              -------------------------------
                              Gerald Vento

MANAGEMENT STOCKHOLDERS:

                              /s/ Thomas Sullivan
                              -------------------------------
                              Thomas Sullivan


                              /s/ Gerald Vento
                              -------------------------------
                              Gerald Vento

                                      76
<PAGE>

                                                                      Schedule I

                             Cash Equity Investors
                             ---------------------

CB Capital Investors, L.P.
380 Madison Avenue, 12th Floor
New York, NY  10017
Attn:  Michael Hannon
Fax:  (212) 622-3101

Equity-Linked Investors-II
Private Equity Investors III, L.P.
540 Madison Avenue, 36th Floor
New York, NY  10022
Attn:  Rohit M. Desai
Fax:  (212) 752-7807

Hoak Communications Partners, L.P.
HCP Capital Fund, L.P.
One Galleria Tower
13355 Noel Road, Suite 1050
Dallas, Texas  75240
Attn:  James Hoak
Fax:  (972) 960-4899

Whitney Equity Partners, L.P.
J.H. Whitney III, L.P.
Whitney Strategic Partners III, L.P.
177 Broad Street, 15th Floor
Stamford, Connecticut  06901
Attn:  William Laverack, Jr.
Fax:  (203) 973-1422

Entergy Technology Holding Company
Three Financial Centre
900 South Shackleford Road
Suite 210
Little Rock, Arkansas  72211
Attn: William Bandt
Fax:  (501) 954-5095

<PAGE>

Media/Communications Partners III Limited Partnership
Media/Communications Investors Limited Partnership
75 State Street, Suite 2500
Boston, MA  02109
Attn:  James F. Wade
Fax:  (617) 345-7201

One Liberty Fund III, L.P.
One Liberty Fund IV, L.P.
One Liberty Square
Boston, MA  02109
Attn:  Joseph T. McCullen
Fax:  (617) 423-1765

Toronto Dominion Investments, Inc.
31 West 52nd Street
New York, NY  10019-6101
Attn:  Brian Rich
Fax:  (212) 974-8429

(with a copy to)
Toronto Dominion Investments, Inc.
909 Fannin
Suite 1700
Houston, Texas  77010
Attn:  Martha Gariepy
Fax:  (713) 652-2647

Northwood Ventures LLC
Northwood Capital Partners LLC
485 Underhill Boulevard, Suite 205
Syosset, New York  11791-3419
Attn:  Peter Schiff
Fax:  (516) 364-0879

Gerald Vento

Thomas Sullivan

                                       2
<PAGE>

                                                                     Schedule II

                            Management Stockholders
                            -----------------------

Gerald Vento
Thomas Sullivan
<PAGE>

                                                                    Schedule III

                             Equity Capitalization
                             ---------------------

                                (See Attached)
<PAGE>

                                   Schedule V
              Share Allocation Without Supplemental Allocation (a)
                         AT&T Does Not Receive Tracking

<TABLE>
<CAPTION>
                                                                                              Preferred Stock
                                      -----------------    -------------------------------------------------------------------
                                         Total Dollars
                                           Committed       Series A   Series B   Series C    Series D   Series E   Series F
                                      -----------------    -------------------------------------------------------------------
<S>                                   <C>                  <C>        <C>        <C>         <C>        <C>        <C>
Cash Equity
 Chase                                     $ 27,782,016         0.00      0.00    27,782.02       0.00       0.00       0.00
 Desai                                       27,782,016         0.00      0.00    27,782.02       0.00       0.00       0.00
 Hoak                                        20,836,512         0.00      0.00    20,836.51       0.00       0.00       0.00
 JH                                          17,363,760         0.00      0.00    17,363.76       0.00       0.00       0.00
Entergy                                      13,891,008         0.00      0.00    13,891.01       0.00       0.00       0.00
M/C                                          10,418,256         0.00      0.00    10,418.26       0.00       0.00       0.00
One Liberty                                   3,472,752         0.00      0.00     3,472.75       0.00       0.00       0.00
TD                                            3,472,752         0.00      0.00     3,472.75       0.00       0.00       0.00
Northwood                                     2,430,926         0.00      0.00     2,430.93       0.00       0.00       0.00
Gerald Vento                                    450,000         0.00      0.00       450.00       0.00       0.00       0.00
Tom Sullivan                                    100,000         0.00      0.00       100.00       0.00       0.00       0.00
                                      ----------------------------------------------------------------------------------------
Total Cash Equity                           128,000,000         0.00      0.00  128,000,000       0.00       0.00       0.00
Supplemental                                          0         0.00      0.00         0.00       0.00       0.00       0.00
TeleCorp Licenses
 One Liberty Fund                             1,531,433         0.00      0.00     1,531.43       0.00       0.00       0.00
 Gilde International                             15,461         0.00      0.00        15.46       0.00       0.00       0.00
 Northwood Ventures                             928,137         0.00      0.00       928.14       0.00       0.00       0.00
 Northwood Capital Partners                     232,034         0.00      0.00       232.03       0.00       0.00       0.00
 CB Capital Investors LP                      1,160,171         0.00      0.00     1,160.17       0.00       0.00       0.00
 TeleCorp Investment Corp., LLC               1,160,171         0.00      0.00     1,160.17       0.00       0.00       0.00
 M/C Investors                                   46,403         0.00      0.00        46.40       0.00       0.00       0.00
 M/C Partners                                 1,113,768         0.00      0.00     1,113.77       0.00       0.00       0.00
 Entergy Technology                           1,160,171         0.00      0.00     1,160.17       0.00       0.00       0.00
                                      ----------------------------------------------------------------------------------------
SubTotal                                      7,347,748         0.00      0.00     7,347.75       0.00       0.00       0.00

AT&T                                         45,974,850    30,649.90      0.00         0.00  15,740.93       0.00  15,324.95
TRW                                          54,109,369    36,072.91      0.00         0.00  18,526.04       0.00  18,036.46
Mercury Licenses                                      0         0.00      0.00         0.00       0.00       0.00       0.00
Gerald Vento                                          0         0.00      0.00         0.00       0.00   8,729.40       0.00
Tom Sullivan                                          0         0.00      0.00         0.00       0.00   5,426.38       0.00
J. Dobson                                             0         0.00      0.00         0.00       0.00   2,287.21       0.00
R. Dowski                                             0         0.00      0.00         0.00       0.00     714.34       0.00
A. Price                                              0         0.00      0.00         0.00       0.00     714.34       0.00
J. Dorso                                              0         0.00      0.00         0.00       0.00     127.80       0.00
D. Chaplain                                           0         0.00      0.00         0.00       0.00     127.80       0.00
P. Collins                                            0         0.00      0.00         0.00       0.00     255.59       0.00
R. Johnson                                            0         0.00      0.00         0.00       0.00     255.59       0.00
S. Chandler                                           0         0.00      0.00         0.00       0.00     255.59       0.00
D. Knutson                                            0         0.00      0.00         0.00       0.00     255.59       0.00
A. Gordon                                             0         0.00      0.00         0.00       0.00     255.59       0.00
P. Bellman                                            0         0.00      0.00         0.00       0.00     255.59       0.00
                                      ----------------------------------------------------------------------------------------
Total                                      $235,431,967    66,722.81      0.00   135,347.75  34,266.97  19,660.81  33,361.41
                                      ========================================================================================

<CAPTION>
                                                                                    Common
                                     -------    -------------------------------------------------------------------   -------------
                                     Senior                                                      Voting                  Percent
                                     Common          A          B           C          D       Preference    Total       of Total
                                     -------    -------------------------------------------------------------------   -------------
<S>                                  <C>       <C>          <C>        <C>         <C>         <C>         <C>        <C>
Cash Equity
 Chase                                 0.00     26,369.02      0.00       87.10      571.78        0.00     27,027.90      14.00%
 Desai                                 0.00     26,369.02      0.00       87.10      571.78        0.00     27,027.90      14.00%
 Hoak                                  0.00    19,776.;77      0.00       65.32      528.84        0.00     20,270.93      10.50%
 JH                                    0.00     16,480.64      0.00       54.44      357.37        0.00     16,892.44       8.75%
Entergy                                0.00     13,184.51      0.00        0.00      329.44        0.00     13,513.95       7.00%
M/C                                    0.00      9,888.38      0.00       32.66      214.42        0.00     10,135.46       5.25%
One Liberty                            0.00      3,296.13      0.00       10.89       71.47        0.00      3,378.49       1.75%
TD                                     0.00      3,296.13      0.00       10.89       71.47        0.00      3,378.49       1.75%
Northwood                              0.00      2,307.29      0.00        7.62       50.03        0.00      2,364.94       1.22%
Gerald Vento                           0.00        427.11      0.00        1.41        9.26        0.00        437.79       0.23%
Tom Sullivan                           0.00         94.91      0.00        0.31        2.06        0.00         97.29       0.05%
                                     ----------------------------------------------------------------------------------------------
Total Cash Equity                      0.00    121,489.91      0.00      357.74    2,677.42        0.00    124,525.57       64.4%
Supplemental                           0.00          0.00      0.00        0.00        0.00        0.00          0.00       0.00%
TeleCorp Licenses
 One Liberty Fund                      0.00      1,336.43      0.00        2.18       14.31        0.00      1,352.92       0.70%
 Gilde International                   0.00         13.49      0.00        0.02        0.14        0.00         13.66       0.01%
 Northwood Ventures                    0.00        913.80      0.00        1.49        9.79        0.00        925.08       0.48%
 Northwood Capital Partners            0.00        228.45      0.00        0.37        2.45        0.00        231.27       0.12%
 CB Capital Investors LP               0.00      1,142.25      0.00        1.86       12.23        0.00      1,156.34       0.60%
 TeleCorp Investment Corp., LLC        0.00      1,142.25      0.00        1.86       12.23        0.00      1,156.34       0.60%
 M/C Investors                         0.00         45.69      0.00        0.07        0.49        0.00         46.26       0.02%
 M/C Partners                          0.00      1,096.55      0.00        1.79       11.74        0.00      1,110.09       0.57%
 Entergy Technology                    0.00      1,142.25      0.00        0.00       14.09        0.00      1,156.34       0.60%
                                     ----------------------------------------------------------------------------------------------
SubTotal                               0.00      7,061.16      0.00        9.64       77.47        0.00      7,148.30       3.70%

AT&T                                   0.00          0.00      0.00        0.00        0.00        0.00     15,324.95       7.94%
TRW                                    0.00          0.00      0.00        0.00        0.00        0.00     18,036.46       9.34%
Mercury Licenses                       0.00          0.00      0.00        0.00        0.00        0.00          0.00       0.00%
Gerald Vento                           0.00     10,799.82      0.00      339.83        0.00        5.00     11,119.65       5.76%
Tom Sullivan                           0.00      6,700.97      0.00      211.25        0.00        5.00      6,912.22       3.58%
J. Dobson                              0.00      3,459.45      0.00        0.00        0.00        0.00      3,459.45       1.79%
R. Dowski                              0.00      1,455.91      0.00        0.00        0.00        0.00      1,455.91       0.75%
A. Price                               0.00      1,455.91      0.00        0.00        0.00        0.00      1,455.91       0.75%
J. Dorso                               0.00        260.46      0.00        0.00        0.00        0.00        260.46       0.13%
D. Chaplain                            0.00        260.46      0.00        0.00        0.00        0.00        260.46       0.13%
P. Collins                             0.00        520.92      0.00        0.00        0.00        0.00        520.92       0.27%
R. Johnson                             0.00        520.92      0.00        0.00        0.00        0.00        520.92       0.27%
S. Chandler                            0.00        520.92      0.00        0.00        0.00        0.00        520.92       0.27%
D. Knutson                             0.00        520.92      0.00        0.00        0.00        0.00        520.92       0.27%
A. Gordon                              0.00        520.92      0.00        0.00        0.00        0.00        520.92       0.27%
P. Bellman                             0.00        520.92      0.00        0.00        0.00        0.00        520.92       0.27%
                                     ----------------------------------------------------------------------------------------------
Total                                  0.00    156,049.57      0.00      918.46    2,755.39       10.00    193,084.85     100.00%
                                     ==============================================================================================
                                                                                                          Cash Equity      64.49%
                                                                                                         Original THC       3.70%
                                                                                                                 AT&T      17.28%
                                                                                                              Mercury       0.00%
</TABLE>

(a)  Management has received shares predicated on the occurrence of the
     supplemental allocation.  If the supplemental allocation does not occur,
     shares will be repurchased from management such that management receives
     14.00% of the fully-diluted equity.
(b)  Assumes that management meets certain return hurdles and that all
     management warrants are issued.
<PAGE>

                                   Schedule A
                                   ----------

                               TeleCorp Investors
                               ------------------

(parentheses indicate name as listed in Schedule V)

CB Capital Investors, L.P. (Chase)
Entergy Technology Holding Company (Entergy)
Media/Communications Investors Limited Partnership (Media/Communications
Investors, M/C)
Media/Communications Partners III Limited Partnership (Media/Communications
Partners, M/C)
One Liberty Fund III, L.P. (One Liberty)
Northwood Capital Partners LLC (Northwood Capital Partners, Northwood)
Northwood Ventures LLC (Northwood Ventures, Northwood)



<PAGE>

                                  Schedule V
             Share Allocation Without Supplemental Allocation (a)
                        AT&T Does Not Receive Tracking

<TABLE>
<CAPTION>
                                                                              Preferred Stock
                                               ----------------------------------------------------------------------------------
                                Total Dollars                                                                             Senior
                                  Committed       Series A   Series B    Series C      Series D    Series E    Series F   Common
                                -------------  ----------------------------------------------------------------------------------
<S>                             <C>            <C>           <C>         <C>          <C>         <C>          <C>        <C>
Cash Equity
 Chase                          $  27,782,016         0.00       0.00      27,782.02       0.00        0.00         0.00     0.00
 Desai                             27,782,016         0.00       0.00      27,782.02       0.00        0.00         0.00     0.00
 Hoak                              20,836.512         0.00       0.00      20,836.51       0.00        0.00         0.00     0.00
 JH                                17,363,760         0.00       0.00      17,363.76       0.00        0.00         0.00     0.00
Entergy                            13,891,008         0.00       0.00      13,891.01       0.00        0.00         0.00     0.00
M/C                                10,418,256         0.00       0.00      10,418.26       0.00        0.00         0.00     0.00
One Liberty                         3,472,752         0.00       0.00       3,472.75       0.00        0.00         0.00     0.00
TD                                  3,472,752         0.00       0.00       3,472.75       0.00        0.00         0.00     0.00
Northwood                           2,430,926         0.00       0.00       2,430.93       0.00        0.00         0.00     0.00
Gerald Vento                          450,000         0.00       0.00         450.00       0.00        0.00         0.00     0.00
Tom Sullivan                          100,000         0.00       0.00         100.00       0.00        0.00         0.00     0.00
                                -------------  ----------------------------------------------------------------------------------
Total Cash Equity                 128,000,000         0.00       0.00    128,000,000       0.00        0.00         0.00     0.00
Supplemental                        5,000,000         0.00       0.00      5,000,000       0.00        0.00         0.00     0.00
TeleCorp Licenses
 One Liberty Fund                   1,531,433         0.00       0.00       1,531.43       0.00        0.00         0.00     0.00
 Gilde International                   15,461         0.00       0.00          15.46       0.00        0.00         0.00     0.00
 Northwood Ventures                   928,137         0.00       0.00         928.14       0.00        0.00         0.00     0.00
 Northwood Capital Partners           232,034         0.00       0.00         232.03       0.00        0.00         0.00     0.00
 CB Capital Investors LP            1,160,171         0.00       0.00       1,160.17       0.00        0.00         0.00     0.00
 TeleCorp Investment Corp., LLC     1,160,171         0.00       0.00       1,160.17       0.00        0.00         0.00     0.00
 M/C Investors                         46,403         0.00       0.00          46.40       0.00        0.00         0.00     0.00
 M/C Partners                       1,113,768         0.00       0.00       1,113.77       0.00        0.00         0.00     0.00
 Entergy Technology                 1,160,171         0.00       0.00       1,160.17       0.00        0.00         0.00     0.00
                                -------------  ----------------------------------------------------------------------------------
SubTotal                            7,347,748         0.00       0.00       7,347.75       0.00        0.00         0.00     0.00

AT&T                               45,974,850    30,649.90       0.00           0.00  15,740.93        0.00    15,324.95     0.00
TRW                                54,109,369    36,072.91       0.00           0.00  18,526.04        0.00    18,036.46     0.00
Mercury Licenses                    2,332,543         0.00       0.00       2,332.55       0.00        0.00         0.00     0.00
Gerald Vento                                0         0.00       0.00           0.00       0.00    8,729.40         0.00     0.00
Tom Sullivan                                0         0.00       0.00           0.00       0.00    5,426.38         0.00     0.00
J. Dobson                                   0         0.00       0.00           0.00       0.00    2,287.21         0.00     0.00
R. Dowski                                   0         0.00       0.00           0.00       0.00      714.34         0.00     0.00
A. Price                                    0         0.00       0.00           0.00       0.00      714.34         0.00     0.00
J. Dorso                                    0         0.00       0.00           0.00       0.00      127.80         0.00     0.00
D. Chaplain                                 0         0.00       0.00           0.00       0.00      127.80         0.00     0.00
P. Collins                                  0         0.00       0.00           0.00       0.00      255.59         0.00     0.00
R. Johnson                                  0         0.00       0.00           0.00       0.00      255.59         0.00     0.00
S. Chandler                                 0         0.00       0.00           0.00       0.00      255.59         0.00     0.00
D. Knutson                                  0         0.00       0.00           0.00       0.00      255.59         0.00     0.00
A. Gordon                                   0         0.00       0.00           0.00       0.00      255.59         0.00     0.00
P. Bellman                                  0         0.00       0.00           0.00       0.00      255.59         0.00     0.00
                                -------------  ----------------------------------------------------------------------------------
Total                           $ 242,764,512    66,722.81       0.00     142,680.29  34,266.97   19,660.81    33,361.41     0.00
                                =============  ==================================================================================

<CAPTION>

                                                                       Common
                                ----------------------------------------------------------------------------------------
                                                                                                   Total        Percent
                                    Series A       Series B  Tracking C    Tracking D    Voting  Preference    of Total
                                ----------------------------------------------------------------------------------------
<S>                             <C>                <C>       <C>            <C>          <C>     <C>           <C>
Cash Equity
 Chase                              26,369.02         0.00      87.10         571.78       0.00   27,027.90        13.49%
 Desai                              26,369.02         0.00      87.10         571.78       0.00   27,027.90        13.49%
 Hoak                               19,776.77         0.00      65.32         528.84       0.00   20,270.93        10.17%
 JH                                 16,480.64         0.00      54.44         357.37       0.00   16,892.44         8.43%
Entergy                             13,184.51         0.00       0.00         329.44       0.00   13,513.95         6.75%
M/C                                  9,888.38         0.00      32.66         214.42       0.00   10,135.46         5.06%
One Liberty                          3,296.13         0.00      10.89          71.47       0.00    3,378.49         1.69%
TD                                   3,296.13         0.00      10.89          71.47       0.00    3,378.49         1.69%
Northwood                            2,307.29         0.00       7.62          50.03       0.00    2,364.94         1.18%
Gerald Vento                           427.11         0.00       1.41           9.26       0.00      437.79         0.22%
Tom Sullivan                            94.91         0.00       0.31           2.06       0.00       97.29         0.05%
                                ----------------------------------------------------------------------------------------
Total Cash Equity                  121,489.91         0.00     357.74       2,677.42       0.00  124,525.57        62.15%
Supplemental                         5,000.00         0.00       0.00           0.00       0.00    5,000.00         2.30%
TeleCorp Licenses
 One Liberty Fund                    1,336.43         0.00       2.18          14.31       0.00    1,352.92          .68%
 Gilde International                    13.49         0.00       0.02           0.14       0.00       13.66         0.01%
 Northwood Ventures                    913.80         0.00       1.49           9.79       0.00      925.08         0.46%
 Northwood Capital Partners            228.45         0.00       0.37           2.45       0.00      231.27         0.12%
 CB Capital Investors LP             1,142.25         0.00       1.86          12.23       0.00    1,156.34         0.58%
 TeleCorp Investment Corp., LLC      1,142.25         0.00       1.86          12.23       0.00    1,156.34         0.58%
 M/C Investors                          45.69         0.00       0.07           0.49       0.00       46.26         0.02%
 M/C Partners                        1,096.55         0.00       1.79          11.74       0.00    1,110.09         0.55%
 Entergy Technology                  1,142.25         0.00       0.00          14.09       0.00    1,156.34         0.58%
                                ----------------------------------------------------------------------------------------
SubTotal                             7,061.16         0.00       9.64          77.47       0.00    7,148.30         3.57%

AT&T                                     0.00         0.00       0.00           0.00       0.00   15,324.95         7.63%
TRW                                      0.00         0.00       0.00           0.00       0.00   18,036.46         9.00%
Mercury Licenses                     2,269.23         0.00       0.00           0.00       0.00    2,269.23         1.13%
Gerald Vento                        10,799.82         0.00     339.83           0.00       5.00   11,119.65         3.53%
Tom Sullivan                         6,700.97         0.00     211.25           0.00       5.00    6,912.22         3.49%
J. Dobson                            3,459.45         0.00       0.00           0.00       0.00    3,459.45         1.73%
R. Dowski                            1,455.91         0.00       0.00           0.00       0.00    1,455.91         0.73%
A. Price                             1,455.91         0.00       0.00           0.00       0.00    1,455.91         0.73%
J. Dorso                               260.46         0.00       0.00           0.00       0.00      260.46         0.13%
D. Chaplain                            260.46         0.00       0.00           0.00       0.00      260.46         0.13%
P. Collins                             520.92         0.00       0.00           0.00       0.00      520.92         0.26%
R. Johnson                             520.92         0.00       0.00           0.00       0.00      520.92         0.26%
S. Chandler                            520.92         0.00       0.00           0.00       0.00      520.92         0.26%
D. Knutson                             520.92         0.00       0.00           0.00       0.00      520.92         0.26%
A. Gordon                              520.92         0.00       0.00           0.00       0.00      520.92         0.26%
P. Bellman                             520.92         0.00       0.00           0.00       0.00      520.92         0.26%
                                ----------------------------------------------------------------------------------------
Total                              163,318.80         0.00     918.46       2,755.39      10.00  200,354.08       100.00%
                                ========================================================================================
                                                                                                Cash Equity       64.65%
                                                                                               Original THC        3.37%
                                                                                                       AT&T       16.63%
                                                                                                    Mercury        1.13%
</TABLE>

(b)  Assumes that management meets certain return hurdles and that all
     management warrants are issued.
<PAGE>

                                                                     Schedule IV

                                 Core Features
                                 -------------

Below is a list and description of the Core Features that Licensee agrees to
implement in accordance with Section 8.2 of this Agreement.  These definitions
are functional descriptions of the Core Features, and the parties agree that
such Core Features shall be implemented using the Critical Network Elements
identified in Schedule XI hereto.  Licensee further agrees to implement
additional features in accordance with Section 8.2 of this Agreement.

1.   Call Delivery

     This capability permits a PCS customer to receive incoming calls to his or
her phone while in his or her home market or while roaming in any part of the
Licensee's Wireless Network or the AWS Wireless Network (together, the "Mobile
Wireless Network").

2.   Roaming - Do Not Disturb

     This capability permits a PCS customer, who would normally receive all
incoming calls while visiting a Mobile Switching Center that is part of the
Mobile Wireless Network, to temporarily inhibit the delivery of such calls.
Activating this capability has no impact on the PCS customer's ability to
originate calls or on the PCS customer's ability to receive calls via the roamer
access ports.

3.   Call Forwarding

     A.  Call Forwarding Immediate

     This capability permits a PCS customer to send all incoming calls destined
     for the PCS customer's PCS phone to another phone number specified by the
     PCS customer.  Activating this capability has no impact on the PCS
     customer's ability to originate calls.  When this capability is activated,
     calls are forwarded regardless of whether the PCS customer is located
     within his or her local market or whether the customer is roaming outside
     of such local market.

     B.  Call Forwarding Busy

     This capability permits a PCS customer to send all incoming calls destined
     for his or her PCS phone to another phone number specified by the PCS
     customer when the PCS customer is engaged in a call.
<PAGE>

     C.  Call Forwarding No Answer

     This capability permits a PCS customer to send all incoming calls destined
     for his or her PCS phone to another phone number specified by the PCS
     customer when the PCS customer does not answer or when the PCS customer's
     PCS phone does not respond to a page.

4.   Call Waiting

     This capability permits a PCS customer to receive incoming calls even
though a call may already be in progress.

5.   Voicemail

     This capability forwards those PCS customer's incoming calls which are not
answered by the PCS customer, and for which no other explicit treatment has been
activated (for example, those described in items above), to a voice storage and
retrieval system.  This capability also permits a PCS customer to subsequently
retrieve messages from the PCS customer's voice mail box.

6.   Three Way Calling

     This capability permits a PCS customer to add a third party to an active
two party call.

7.   Message Waiting Indicator

     This capability is an enhancement to PCS voice mail, and provides the PCS
customer with the current status of the number of unheard voice mail messages
waiting in his or her PCS voice mail box.

8.   Calling Number Identification

     This capability identifies for the PCS customer either the telephone number
or the stored name (in the PCS phone) of the person who is calling.  It also
permits a PCS customer to inhibit the ability of a person to whom the PCS
customer is placing a call from identifying either the telephone number or the
name of such PCS customer who is placing the call.

9.   Wireless Office Service (WOS)

     A.  PCS/PBX Interworking

     This capability permits WOS customers to have just one published number
     that delivers all incoming calls to both the PCS and PBX phone.

                                       2
<PAGE>

     B.  Private Number Plan

     This capability permits a defined group of customers to call defined
     private network extensions by using an abbreviated unique dialing pattern
     (four digit dialing).

     C.  Private Networks

     This capability permits a WOS customer to have his or her own private or
     semiprivate PCS system.

     D.  Location ID

     This capability permits the PCS customer to identify the nature of the
     system (private, public, or residential) that the PCS customer is using, by
     displaying the system's name on the PCS phone.

10.  Sleep Mode

     This capability permits an IS 136 PCS phone to operate in a power saving
mode when camping on an IS 136 system, thereby allowing the battery standby time
to increase.

11.  PCS Messaging

     This capability will permit a caller to deliver both numeric and
alphanumeric messages of up to eighty characters to an IS 136 PCS phone.  If the
PCS customer to whom the message has been delivered has his or her phone off or
is not in the IS 136 coverage area, then messages are stored for future
delivery.

     MessageFlash software permits alphanumeric messages to be sent from a
computer via a standard modem to the customer.

     E-Mail messaging teleservice allowing an IS-136 phone to have an E-Mail
address.

12.  Authentication

     This capability allows for the validation of the IS-136 phone's identity.

     Text Dispatch Service permits people to call an operator (provided by or on
behalf of the Company) and dictate a message which can then be converted to an
alphanumeric message and delivered to the customer.

     Cut Through Paging permits people to send a numeric message while listening
to the customer's voicemail greeting.

                                       3
<PAGE>

                                                                      Schedule V

                             MINIMUM BUILD-OUT PLAN
                             ----------------------


                                (See Attached)
<PAGE>

                           Minimum Buildout Schedule
                           -------------------------

Year 1/1/           2.2 million pops (20% of total pops) during the first year.

                    The initial deployment consists of launching the core urban
                    and suburban areas of Memphis and New Orleans.

                    Memphis
                    -------
                    Bartlett, TN
                    Frayser, TN
                    Memphis, TN

                    New Orleans
                    -----------
                    Baton Rouge, LA
                    Kenner, LA
                    Mandeville, LA
                    Metairie, LA
                    New Orleans, LA
                    Slidell, LA


Year 2              2.2 million pops (20% of total pops) for an aggregate pop
                    coverage of 40%.

                    Year 2 consists of launching New England, Little Rock and
                    Missouri and enhancing the coverage in all markets during
                    the remainder of the year. The coverage at the end of the
                    year 2 is detailed below./1/

                    Little Rock
                    -----------
                    Benton, AR
                    Conway, AR
                    Hot Springs, AR
                    Jonesboro, AR
                    Little Rock, AR
                    North Little Rock, AR

                    Memphis
                    -------
                    Brownsville, TN
                    Jackson, TN
                    Millington, TN

__________________________
/1/ The years are defined as the 12-month periods starting on the date the FCC
approves the transfer of the PCS licenses to the TeleCorp PCS.
<PAGE>

                    Tunica, MS

                    Missouri
                    --------
                    Columbia, MO
                    Jefferson City, MO

                    New England
                    -----------
                    Cape Cod, MA
                    Concord, NH
                    Manchester, NH
                    Nashua, NH
                    Portsmouth, NH
                    Worcester, MA

                    New Orleans
                    -----------
                    Lafayette, LA
                    Covington, LA
                    Hourna, LA


Year 3              1.65 million pops (15% of total pops) for an aggregate pop
                    coverage of 55%

                    Year 3 consists of building the secondary cities and the
                    important associated connecting highways.

                    Little Rock
                    -----------
                    Bentonville, AR
                    Fayettville, AR
                    Fort Smith, AR
                    Pine Bluff, AR
                    Springdale, AR

                    Memphis
                    -------
                    Covington, TN
                    Humboldt, TN
                    Milan, TN

                    Missouri
                    --------
                    Cape Girardeau, MO
                    Carbondale, MO

                    New England
                    -----------
                    Dover, NH
                    Fitchburg, MA
                    Leominster, MA

                                       2
<PAGE>

                    Martha's Vineyard, MA
                    Nantucket, MA
                    Rochester, NH

                    New Orleans
                    -----------
                    Beaumont, TX
                    Hammond, LA


Year 4              1.65 million pops (15% of total pops) for an aggregate pop
                    coverage of 70%

                    Year 4 consists of continuing to expand the secondary cities
                    as well as enhancing the coverage and capacity of the core
                    areas.

                    Little Rock
                    -----------
                    Malvern, AR
                    Morrilton, AR
                    Russellville, AR

                    Memphis
                    -------
                    Batesville, MS
                    Dyersburg, TN
                    Oxford, MS
                    Union City, TN

                    Missouri
                    --------
                    Centralia, MO
                    Mount Vernon, MO

                    New England
                    -----------
                    Expansion of the suburban cores surrounding Worcester,
                    Nashua, and Manchester.

                    New Orleans
                    -----------
                    Expansion of suburban cores surrounding New Orleans, Baton
                    Rouge, and Lafayette.


Year 5              550,000 pops (5% of total pops) for an aggregate pop
                    coverage of 75%.

                    For all markets, year 5 consists of adding capacity sites
                    and filling in the remaining suburban areas bringing the
                    total pop coverage to 75%.
<PAGE>

                                                                     Schedule VI

                                 PCS Territory
                                 -------------

                                (See Attached)
<PAGE>

                              Company Territory*
                              -----------------


I.              From New Orleans MTA                     BTA Market Designator
                --------------------                     ---------------------
                Baton Rouge, LA                                  32
                Lafayette-New Iberia, LA                        236
                New Orleans, LA                                 320

II.             From Houston MTA
                ----------------
                Beaumont, TX                                    34

III.            From St. Louis MTA
                ------------------
                Cape Giradeau-Sikeston, MO                      66
                Carbondale-Marion, IL                           67
                Columbia, MO                                    90
                Jefferson City, MO                             217
                Kirksville, MO                                 230
                Mount Vernon-Centralia, IL                     308
                Poplar Bluff, MO                               355
                Quincy, IL-Hannibal, MO                        367
                Rolla, MO                                      383
                Portions of Springfield, MO BTA:               428
                    Camden County, MO
                    Cedar County,MO
                    Dallas County, MO
                    Douglas County, MO
                    Hickory County, MO
                    Laclede County, MO
                    Polk County, MO
                    Stone County, MO
                    Taney County, MO
                    Texas County, MO
                    Webster County, MO
                    Wright County, MO
                West Plains, MO                                470


_____________________

*   The Territory Company is more particularly described in the FCC applications
filed in connection with the transfer of FCC PCS Licenses to the Company.
<PAGE>

IV.             From Little Rock MTA                     BTA Market Designator
                --------------------                     ---------------------
                El Dorado-Magnolia-Camden, AR                    125
                Fayettevillle-Springdale-Rogers, AR              140
                Fort Smith, AR                                   153
                Harrison, AR                                     182
                Hot Springs, AR                                  193
                Jonesboro-Paragould, AR                          219
                Little Rock, AR                                  257
                Pine Bluff, AR                                   348
                Russellville, AR                                 387

V.              From Memphis-Jackson MTA
                ------------------------
                Blytheville, AR                                   49
                Dyersburg-Union City, TN                         120
                Jackson, TN                                      211
                Portions of Memphis, TN BTA:                     290
                    Crittendon County, AR
                    Cross County, AR
                    Lee County, AR
                    Phillips County, AR
                    St. Francis County, AR
                    Benton County, MS
                    Coahoma County, MS
                    DeSoto County, MS
                    Grenada County, MS
                    Lafayette County, MS
                    Marshall County, MS
                    Panola County, MS
                    Quitman County, MS
                    Tallahatchie County, MS
                    Tate County, MS
                    Tunica County, MS
                    Yalobusha County, MS
                    Fayette County, TN
                    Hardeman County, TN
                    Haywood County, TN
                    Lauderdale County, TN
                    Shelby County, TN
                    Tipton County, TN

                                       2
<PAGE>

VI.             From Boston-Providence MTA                BTA Market Designator
                --------------------------                ---------------------
                Boston, MA                                         51
                    Rockingham County, NH
                    Stafford County, NH
                Hyannis, MA                                       201
                Manchester-Nashua-Concord, NH                     274
                Portions of Worcester County, MA*                 480

VII.            From Louisville-Lexington-Evansville MTA
                ----------------------------------------
                Evansville, TN BTA                                135
                Paducha-Murray-Mayfield, KY BTA                   339

_________________________

* The portions of Worcester County are those to the east of the line described
by Points A, B and C on the map included in Schedule 2.1 to this Agreement.

                                       3
<PAGE>

                                                                    Schedule VII

                        Quality and Reporting Standards
                        -------------------------------

General Overview

This Schedule VII sets out the Network and Reporting Standards with which
Licensee shall comply pursuant to Section 8.2 of this Agreement. These Standards
set out the network performance metrics and the process by which such metrics
will be established, measured and reported. All metrics which represent a
defined standard of quality for acceptable network operations have, or will
have, specific targets which the Licensee must comply with in accordance with
the following network standards.

I.  NETWORK STANDARDS

There are three categories of Network Standards: network quality (the "Network
Quality Category"); system performance (the "System Performance Category"); and
audio quality (the "Audio Quality Category") (each hereafter referred to
generally as a "Category"). For each Category of Network Standards, specific
metrics have been identified to measure performance in each such Category. The
detailed description of how to measure and interpret the metrics for each
Category is set out in the following AWS documents (each referred to generally
as a "Network Standards Document"):

 .    Network Quality Category: Document ES-4034, Revision 1.1, dated July 30,
     ------------------------
     1997 entitled "Network Quality Scorecard User Guide" (as referred to as the
     "Network Quality Standards Document"). This document is a collection of key
     network performance and traffic indicators (metrics) that are measured and
     reported on a regular basis. Included in this category, Licensee shall
     perform the ANS Consistency Test, as attached to this Schedule VII.

 .    System Performance Category: OSS draft document, Revision 0.7, dated June
     ---------------------------
     17, 1997 entitled "Key Metrics for System Performance Document" (as
     referred to as the "System Performance Standards Document"). This document
     identifies the network-wide key metrics for Ericsson and Lucent switching
     systems, as well as cell sites, which will provide a high level assessment
     of the system.

 .    Audio Quality Category: Document PP-4027E, Revision 1.1, dated May 30, 1996
     ----------------------
     entitled "Audio Quality Measurement (AQM)" (as referred to as the "Audio
     Quality Standards Document"). This document provides the basis for
     assessing the quality of RF transmission by describing the standards for
     performing audio quality measurements and the reporting of their results.
     AWS measures the metrics for the Audio Quality Category using the "Radio
     Quality Scorecard". The Radio Quality Scorecard is comprised of performance
     statistics derived from driving the PCS system using the Buzzard tool or a
     tool with similar measurement and reporting capability.
<PAGE>

These Network Standards Documents are collectively attached to this Schedule VII
which, subject to the terms and conditions of this Agreement including, without
limitation, this Schedule VII, is hereby incorporated into and forms a part of
this Agreement. In the event of any inconsistency between any part of a Network
Standards Document and the provisions of this Schedule VII, the provisions of
this Schedule VII shall govern.

Notwithstanding anything else in this Agreement including, without limitation,
this Schedule VII, the parties acknowledge and confirm that the Network
Standards Documents represent the standards and metrics currently identified by
AWS as applicable to each Category. Target values for key quality related
metrics are contained herein and Licensee agrees to comply with the specific
metric target values as specified in Schedule VII.

In addition, the parties acknowledge and confirm that the Network Standards
Documents are subject to revision and the Licensee shall comply with subsequent
revisions to these Network Standards Documents, as well as with Call Center
Quality Standards which will constitute an additional Category once they are
formally implemented, in accordance with Section 8.2 of this Agreement.

Set out below is a brief description of each Category of Network Standard and
the currently established metrics for each such Category.

II.  TARGETS FOR NETWORK STANDARDS

Licensee shall meet the following targets for key metrics which represent
overall network and system quality. These targets are subject to revision and
shall be implemented in accordance with Section 8.2 of this Agreement.

 .    % Established Calls: The percentage of call attempts to and from a mobile
     -------------------
     phone that result in a successful voice channel assignment. The target goal
     for this metric is 93%.

 .    % Dropped Calls: The percentage of established calls, as defined below,
     ---------------
     which terminate abnormally. The target, goal for this metric is a drop call
     rate of 1.7% or less.

 .    % Handoff Failures: The target goal for this metric is a handoff failure
     ------------------
     rate of 1.5%.

 .    Failures per Erlang: The ratio of failed calls to carried traffic, where
     -------------------
     failed calls are measured utilizing switch counters for originating and
     terminating traffic, and carried traffic is measured in erlangs. The target
     goal for this metric is 1.68.

 .    Switch Outage Time: The amount of time (in minutes) in a month when
     ------------------
     subscribers are impacted by a cellular switch outage. Target for this
     metric is 10 minutes per switch per

                                       2
<PAGE>

     year, with all ten minutes occurring the maintenance window between 12:00
     am and 5:00 am.

 .    % Blocking - Cell Routes: Percentage of time all cellular traffic channels
     ------------------------
     (voice paths in a trunk group) are unavailable within a given measurement
     interval. Target for this metric is 5%.

 .    % Blocking- - Network Routes: Percentage of time all network traffic
     ----------------------------
     channels are unavailable within the measurement interval. Target for this
     metric is 5%.

 .    ANS Consistency Test: The percentage of successful ANS feature deliveries,
     --------------------
     based on the following sequence: feature activation/deactivation (when
     applicable), test call, correct response, and call termination. The target
     goal for this metric is 96% for all ANS features. This target metric
     includes feature delivery failures due to call processing failures (i.e.
     call delivery, call origination, handoff failures, or dropped calls. These
     failures are estimated to be approximately 4%.)

III. REPORTING STANDARDS

Licensee agrees to comply with the reporting requirements as specified in the
Network Standards Documents and as specified below:

 .    Except as specified Audio Quality Network Standards, Licensee will submit
     the metric reports required pursuant to this Schedule VII (the "Results")
     to AWS no less than quarterly.

 .    With respect to Audio Quality Network Standards, Licensee shall only submit
     quarterly Results for markets with 10,000 or more subscribers; for markets
     with less than 10,000 subscribers, Licensee shall only submit Results on a
     semi-annual basis.

 .    Licensee shall submit all Results by the fifteenth day of the month
     following the end of the applicable reporting period.

 .    Licensee will report the Results to AWS on an aggregated national basis;
     the aggregated national Results will reflect the distribution of the metric
     measured across Licensee's Territory. Licensee may also be required to
     provide a breakdown, by market, of any metric.

                                       3
<PAGE>

                                                                   Schedule VIII

                               Initial Directors
                               -----------------

Selected Pursuant to Section 3.1(A)
- -----------------------------------
Rohit Desai
James Hoak
William Laverack, Jr.

Selected Pursuant to Section 3.1(b) and 3.1(c)
- ----------------------------------------------
Gerald Vento
Thomas Sullivan

Selected Pursuant to Section 3.1(d)
- -----------------------------------
William W. Hague
Kurt Maas

Selected Pursuant to Section 3.1(e)(i)
- --------------------------------------
William Bandt
Michael R.  Hannon
James F.  Wade

Selected Pursuant to Section 3.1(e)(ii)
- ---------------------------------------
Scott Anderson
William Kussel
Robert Dowski*

__________________________

*/  To be replaced with an individual selected in accordance with Section
- -
    3.1(e)(ii) at or prior the first Board meeting after July 17, 1998.
<PAGE>

                                                                      Schedule X

                               Voting Agreements
                               -----------------

                                   See Tab 6

<PAGE>

                                                                 EXHIBIT 10.17.2


                                AMENDMENT NO. 1

                                      TO

                            STOCKHOLDERS' AGREEMENT


          AMENDMENT NO. 1 TO STOCKHOLDERS' AGREEMENT ("Amendment No. 1") dated
as of March 30, 1999, by and among AT&T WIRELESS PCS INC., a Delaware
corporation (together with its Affiliated Successors (as hereinafter defined),
"AT&T PCS"), TWR CELLULAR, INC., a Delaware corporation (together with its
Affiliated Successors, "TWR Cellular"), the investors listed under the heading
"Cash Equity Investors" on the signature pages hereto (individually, each a
"Cash Equity Investor" and, collectively, with any of its Affiliated Successors,
the "Cash Equity Investors"), the individuals listed under the heading
"Management Stockholders" on the signature pages hereto (individually, each a
"Management Stockholder" and, collectively, the "Management Stockholders") and
TELECORP PCS, INC., a Delaware corporation (the "Company").  Certain capitalized
terms used herein and not otherwise defined have the meaning assigned to such
term in the Stockholders' Agreement referred to below.

          WHEREAS, each of the parties hereto (other than the Company) are
stockholders of the Company;

          WHEREAS, the parties hereto are parties to that certain Stockholders'
Agreement, dated as of July 17, 1998 (the "Stockholders' Agreement"), pursuant
to which, among other things, the parties hereto entered into certain agreements
regarding the operation of the Company's business, including, restrictions on
the ability of the Company to market interexchange services of providers other
than AT&T Corp. or any Affiliate thereof and restrictions on the ability of AT&T
PCS to provide Company Communications Services in the Territory;

          WHEREAS, an Affiliate of AT&T PCS has entered into a merger agreement
with Vanguard Cellular Systems Inc. ("Vanguard") pursuant to which upon the
consummation of the transactions contemplated by such merger agreement, AT&T PCS
and its Affiliates will provide Company Communications Services in Strafford
County, New Hampshire;

          WHEREAS, the Company has entered into an agreement with Wireless 2000,
Inc. dated as of December 2, 1998 (the "Wireless 2000 Acquisition Agreement")
pursuant to which,

                                       1
<PAGE>

among other things, the Company will acquire 15 MHz of C Block PCS Licenses in
the Alexandria, LA BTA, the Lake Charles, LA BTA and the Monroe, LA BTA;

          WHEREAS, in connection with the transactions contemplated by the
Supplemental Closing, (i) the Company has entered into a License Acquisition
Agreement with Digital PCS, L.L.C. (a/k/a Mercury PCS II, LLC ) ("Digital")
dated as of May 15, 1998 (the "Mercury Agreement") pursuant to which, among
other things, the Company will acquire 10MHz of F Block PCS Licenses for the
Baton Rouge, LA BTA, the Lafayette-New Iberia, LA BTA, the Houma-Thibodeaux, LA
BTA and the Hammond, LA BTA, and (ii) the parties hereto desire to amend the
Stockholders' Agreement upon consummation of the Supplemental Closing to provide
that (A) Mercury shall have the rights and obligations of a Cash Equity Investor
under the Stockholders' Agreement, (B) William M. Mounger, II and E. B. Martin,
Jr. shall not be deemed to be in violation of Section 8.6 of the Stockholders'
Agreement by reason of their respective interests in Mississippi-34 Cellular
Corporation on the date of the Mercury Agreement or the activities of such
entity as being conducted on the date of the Mercury Agreement, and (C) William
M. Mounger, II, Jerry M. Sullivan, Jr. and E. B. Martin, Jr. shall not be deemed
to be in violation of Section 8.6 of the Stockholders' Agreement by reason of
their respective interests in Mercury Wireless Management Inc. (which owns
certain IVDS Licenses covering the Jackson, Mississippi MSA) on the date of the
Mercury Agreement or the activities of such entity as being conducted on the
date of the Mercury Agreement;

          WHEREAS, the Company desires to expand the portions of the PCS
Territory within the New Orleans MTA (i) effective upon the closing of the
transactions contemplated by the Wireless 2000 Acquisition Agreement (the
"Wireless 2000 Closing"), to include the Alexandria, LA BTA, the Lake Charles,
LA BTA, and Ashley County, LA, Caldwell County, LA, and Catahoula County, LA
within the Monroe, LA BTA (the "Included Monroe Counties") and (ii) effective
upon the Supplemental Closing, to include the Houma-Thibodeaux, LA BTA and the
Hammond, LA BTA, and AT&T PCS, TWR and the other Stockholders are willing to
consent thereto provided on the terms and conditions hereinafter set forth;

          WHEREAS, subject to the terms and conditions set forth in this
Amendment No. 1, the parties desire to amend the Stockholders' Agreement (i) to
permit the Company to provide interexchange services of providers other than
AT&T Corp. or an Affiliate thereof, on the terms set forth herein, (ii) to
delete Strafford County, New Hampshire from the PCS Territory, (iii) effective
upon the Wireless 2000 Closing, to expand the PCS Territory to include the
Alexandria, LA BTA, Lake Charles, LA BTA and the Included Monroe Counties, and
(iv) effective upon the Supplemental Closing, to expand the PCS Territory to
include the Houma-Thibodeaux, LA BTA and the Hammond, LA BTA;

          WHEREAS, AT&T PCS and the Company are negotiating the terms and
conditions of an Asset Purchase Agreement (the "Asset Purchase Agreement") and
related agreements, pursuant to which, among other things, the Company proposes
to acquire from

                                       2
<PAGE>

AT&T PCS, on the terms set forth in the Asset Purchase Agreement, a portion of
the Block A PCS License for the Puerto Rico-U.S. Virgin Islands MTA (the "Puerto
Rico MTA") owned by AT&T PCS covering such market, the parties expressly
acknowledging and agreeing that binding commitments on the part of AT&T PCS and
the Company with respect to the purchase and sale of the Puerto Rico MTA will
result only from the execution of a definitive Asset Purchase Agreement and
related documentation;

          WHEREAS, in the event that the Asset Purchase Agreement is entered
into, the parties hereto agree that effective upon the closing of the
transactions contemplated by the Asset Purchase Agreement (the "Puerto Rico
Closing"), the Stockholders' Agreement shall be amended, without any further
action of the parties hereto, to provide that (i)  Schedule V to the
Stockholders' Agreement include the minimum build-out plan for the Puerto Rico
MTA and (ii) to expand the PCS Territory to include the Puerto Rico MTA
(collectively, the "Puerto Rico Amendments"); and

          WHEREAS, the Stockholders desire to clarify certain other provisions
of the Stockholders' Agreement.

          NOW THEREFORE, in consideration of the mutual promises and covenants
herein contained and for other good and valuable consideration the receipt and
sufficiency of which is hereby acknowledged, the parties hereby agree as
follows:

          1.  Amendments.  A.  From and after the Amendment Effectiveness Date
              ----------
(as hereinafter defined):

          (1)  Section 3.1(d) of the Stockholders' Agreement shall be amended
and restated in its entirety as follows:

               "(d)  two (2) individuals nominated by AT&T PCS pursuant to the
          Restated Certificate in its capacity as holder of Series A Preferred
          Stock (each a  "Series A Preferred Director") so long as it and TWR
          Cellular has the right to nominate two directors in accordance with
          the Restated Certificate";

          (2)  The second sentence immediately following clause (e) of Section
3.1 of the Stockholders' Agreement shall be amended and restated in its entirety
as follows:

               "In the event that AT&T PCS shall cease to be entitled to
          nominate the Series A Preferred Directors, such directors shall resign
          (or the other directors or Stockholders shall remove them) from the
          Board of Directors and the remaining directors shall take such action
          so that the number of directors constituting the entire Board of
          Directors shall be reduced accordingly.";

                                       3
<PAGE>

          (3)  The last sentence of the second paragraph of Section 3.1 shall be
amended and restated in its entirety as follows:

               "In addition, so long as AT&T PCS and TWR Cellular have the right
          to nominate two directors in accordance with the Restated Certificate,
          up to two (2) AT&T PCS regional directors (in regions overlapping with
          or in geographic proximity to the Territory) shall have the right to
          attend each meeting of the Board of Directors as an observer.";

          (4)  Section 3.11(c) of the Stockholders' Agreement shall be amended
and restated in its entirety as follows:

               "(c)  One (1) Series A Preferred Director nominated by AT&T PCS
          in its capacity as holder of Series A Preferred Stock so long as it
          has the right to nominate one director in accordance with the Restated
          Certificate."

          (5)  The last section of Section 3.11(c) of this Stockholders'
Agreement shall be amended and restated in its entirety as follows:

               "In the event that AT&T PCS and TWR Cellular shall cease to be
          entitled to nominate one (1) Series A Preferred Director, such
          director shall resign (or the other directors or Stockholders shall
          remove him) from the Board of Directors and the remaining directors
          shall take such action so that the number of directors constituting
          the entire Board of Directors shall be reduced accordingly."

          (6)  The following Section 3.12 shall be added to the Stockholders'
Agreement:

               "3.12.  Series A Preferred Directors.  For so long as AT&T PCS
                       ----------------------------
          shall have the right to nominate one or more Series A Preferred
          Directors to the Board of Directors in accordance with the Restated
          Certificate, each of the Stockholders hereby agrees that it will vote
          all of the shares of Class A Voting Common Stock and Voting Preference
          Stock Beneficially Owned or held of record by it (whether now owned or
          hereafter acquired), in person or by proxy, to cause the election of
          any such Series A Preferred Director so nominated by AT&T PCS to serve
          on the Board of Directors and such obligation of the Stockholders to
          cause the election of any such Series A Preferred Director shall
          continue until the termination of this Agreement in accordance with
          Section 12.3."

          (7)  Section 8.5(a) of the Stockholders' Agreement shall be amended
and restated in its entirety as follows:

                                       4
<PAGE>

               "(a)  The Company and its Subsidiaries shall not market, offer,
          provide or resell interexchange services, except (i) interexchange
          services that constitute Company Communication Services and (ii)
          interexchange services procured from AT&T Corp. or an Affiliate
          thereof designated by AT&T Corp.  Such interexchange services shall be
          provided by AT&T Corp. or such Affiliate at the same rates as the
          rates charged by AT&T Corp. or such Affiliate to other similarly
          situated carriers.  It is anticipated that such services will be
          provided by AT&T Corp. or such Affiliate pursuant to an agreement
          incorporating such rates.  Upon specific request of any customer, the
          Company may permit such customer to utilize the interexchange services
          of another interexchange provider (including the interexchange
          services of AT&T Corp. and its Affiliates), provided, however, that
                                                      --------  -------
          neither the Company nor any Affiliate thereof will accept any referral
          fee, commission, credit against its long distance bill, or any other
          remuneration, directly or indirectly, from such other provider in
          exchange for permitting its customers to utilize such other
          interexchange provider; it being understood that such prohibition
          against the acceptance of any such referral fees, commissions, credits
          or other remuneration shall not be applicable to any such referral
          fees, commissions, credits or other remuneration paid by AT&T Corp.
          and its Affiliates.  The Company covenants and agrees that neither it
          nor its Affiliates will market, offer, promote or otherwise encourage
          its customers to utilize the interexchange services of any Person
          other than the Company (such services having been procured as set
          forth above by the Company from AT&T Corp. or an Affiliate thereof) or
          AT&T Corp. or an Affiliate thereof.";

          (8)  Clause (a) of the definition of "Business" contained in Section 1
of the Stockholders' Agreement is hereby amended and restated as follows:

               "(a)  owning, constructing and operating systems to provide
          Company Communications Services on frequencies licensed to the Company
          for Commercial Mobile Radio Services pursuant to the Licenses
          described on Schedule XII;"

          (9)  Schedule VI to the Stockholders' Agreement is hereby amended to
delete Strafford County, New Hampshire from the PCS Territory within the Boston-
Providence MTA; and

          (10) Schedule I hereto is hereby added to the Stockholders' Agreement
in its entirety as Schedule XII thereto.

          2.  From and after the later to occur of (x) the Amendment
Effectiveness Date, and (y) the date of the Puerto Rico Closing, without any
further action on the part of the

                                       5
<PAGE>

parties hereto, the Puerto Rico Amendments shall be effective and in full force
and effect as set forth below:

          (1)  Schedule V to the Stockholders' Agreement, "Minimum Build-Out
Plan", shall be amended to include the Minimum Build-Out Plan for the Puerto
Rico - U.S. Virgin Islands MTA as set forth on Schedule II to this Amendment No.
1; and

          (2)  Schedule VI is hereby amended to include the following PCS
Territory:

               "The entire Puerto Rico - U.S. Virgin Islands MTA"; and

          (3)  Schedule XII to the Stockholders' Agreement is hereto amended to
include the following PCS Licenses:

               "the 20 MHz PCS License for the Puerto Rico-U.S. Virgin Islands
          MTA acquired pursuant to the Asset Purchase Agreement dated as of
          March 30, 1999 between AT&T PCS and the Company."

          3.  From and after the later to occur of (x) the Amendment
Effectiveness Date, and (y) the date of the Wireless 2000 Closing, without any
further action on the part of the parties hereto, the following amendments shall
be effective and in full force and effect as set forth below:

          (1)  Schedule VI to the Stockholders' Agreement is hereby amended to
include in the portion of the PCS Territory within the New Orleans MTA the
Alexandria, LA BTA -- Market Designator B009, the Lake Charles, LA BTA -- Market
Designator B238, and each of Ashley County, LA, Caldwell County, LA and
Catahoula County, LA within the Monroe, LA BTA -- Market Designator B304; and

          (2)  Schedule XII to the Stockholders' Agreement is hereby amended to
include the following PCS Licenses:

          "the 15 MHz C Block PCS Licenses in the Alexandria, LA BTA, the Lake
Charles, LA BTA and each of Ashley County, LA, Caldwell County, LA and Catahoula
County, LA within the Monroe, LA BTA acquired pursuant to an agreement, dated
December 2, 1998, between the Company and Wireless 2000, Inc."

          4.  From and after the later to occur of (x) the Amendment
Effectiveness Date, and (y) the date of the Supplemental Closing, without any
further action on the part of the parties hereto, (i) the following amendments
shall be effective and in full force and effect as set forth below:

                                       6
<PAGE>

          (A) Schedule VI to the Stockholders' Agreement shall be amended to
     include in the portion of the PCS Territory within the New Orleans MTA the
     Houma-Thibodeaux, LA BTA -- Market Designator B195 and the Hammond, LA BTA
     -- Market Designator B180; and

          (B) Schedule XII to the Stockholders' Agreement shall be amended to
     include the 10MHz F Block PCS Licenses in the Houma-Thibodeaux, LA BTA, the
     Hammond, LA BTA, the Baton Rouge, LA BTA and the Lafayette-New Iberia, LA
     BTA acquired in the Supplemental Closing; and

          (1)  the parties hereby agree that:

          (A) Digital shall have the rights and obligations of a Cash Equity
     Investor under the Stockholders' Agreement;

          (B) William M. Mounger, II and E. B. Martin, Jr. shall not be deemed
     to be in violation of Section 8.6 of the Stockholders' Agreement by reason
     of their respective interests in Mississippi-34 Cellular Corporation on May
     15, 1998 or the activities of such entity being conducted on May 15, 1998;
     and

          (C) William Mounger, II, Jerry M. Sullivan, Jr. and E. B. Martin, Jr.
     shall not be deemed in violation of Section 8.6 of the Stockholders'
     Agreement by reason of their respective interest in Mercury Wireless
     Management Inc. (which owns certain IVDS Licenses covering the Jackson,
     Mississippi MSA) on May 15, 1998 or the activities of such entity as being
     conducted on May 15, 1998.

          (D) By execution of this Amendment No. 1 the undersigned shall be
     deemed to have approved by written consent pursuant to Section 228 at the
     Delaware General Corporation Law of the amendment and restatement of the
     Company's Certificate of Incorporation in the form attached hereto as
     Exhibit A in order to provide that the holders of Series A Preferred Stock
     have a right to nominate directors, not elect directors.

          2.  Notwithstanding anything to the contrary contained in the
Stockholders' Agreement (including as amended hereby) or Schedule V to the
Stockholders' Agreement (including the amendment to such Schedule V referred to
herein), from and after the later to occur of (x) the Amendment Effectiveness
Date, and (y) the date of the Puerto Rico Closing, the Company and AT&T PCS
shall have the right to amend the Minimum Build-Out Plan to accelerate or defer
any portion of such Build-Out Plan on terms mutually agreeable to the Company
and AT&T PCS.

          3.  The parties hereby consent to the acquisition by the Company of a
15 MHz C Block PCS License in the Monroe, LA BTA pursuant to the Wireless 2000
Closing. The

                                       7
<PAGE>

Company confirms that the Business shall not include any activities of any
nature whatsoever in the Monroe, LA BTA, other than in the Included Monroe
Counties, or in Strafford County, New Hampshire and the Company agrees that it
shall not conduct any activities, including without limitation, providing
Company Communications Services, in the Monroe, LA BTA, other than in the
Included Monroe Counties, or in Strafford County, New Hampshire without the
prior written consent of AT&T PCS.

          4.  Amendment Effectiveness Date.  This Amendment No. 1 shall be
              ----------------------------
effective on the date that a counterpart hereof shall have been executed by each
of the Company, AT&T PCS, holders of 66 2/3% of the Class A Voting Common Stock
Beneficially Owned by the Cash Equity Investors and holders of 66 2/3% of the
Class A Voting Stock Beneficially Owned by the Management Stockholders (the
"Amendment Effectiveness Date").

          5.  Representation and Warranties.  Each party hereto, as to itself,
              -----------------------------
represents and warrants, as applicable, to each of the other parties as follows:

          A.  It is a corporation, limited liability company, general
partnership or limited partnership, duly organized, validly existing and in good
standing under the laws of its jurisdiction of organization and has the
requisite power and authority to own, lease and operate its properties and to
carry on its business as now being conducted.

          B.  It has the requisite power, authority and capacity to execute,
deliver and perform this Amendment No. 1.

          C.  The execution and delivery of this Amendment No. 1 by it have been
duly and validly authorized by its Board of Directors (or equivalent body) and
no other proceedings on its part which have not been taken (including, without
limitation, approval of its stockholders, partners or members) are necessary to
authorize this Amendment No. 1.

          D.  This Amendment No. 1 has been duly executed and delivered by it
and constitutes its valid and binding obligation, enforceable against it in
accordance with its terms, except as such enforceability may be limited by
bankruptcy, insolvency, moratorium or other similar laws affecting or relating
to enforcement of creditors' rights generally and may be subject to general
principles of equity.

          E.  The execution, delivery and performance by it of this Amendment
No. 1 will not (a) conflict with, or result in a breach or violation of, any
provision of its organizational documents; (b) constitute, with or without the
giving of notice or passage of time or both, a breach, violation or default,
create a Lien, or give rise to any right of termination, modification,
cancellation, prepayment or acceleration, under (i) any Law or License or (ii)
any note, bond, mortgage, indenture, lease, agreement or other instrument, in
each case which is applicable to or binding upon it or any of its assets; or (c)
require any Consent, or the approval of its board of

                                       8
<PAGE>

directors, general partner, stockholders or similar constituent bodies, as the
case may be (which approvals have been obtained), except in each case, where
such breach, violation, default, Lien, right, or the failure to obtain or give
such Consent would not have a Material Adverse Effect on it or its ability to
perform its obligations hereunder.

          F.  There is no action, proceeding or investigation pending or, to its
knowledge, threatened against it or any of its properties or assets that would
be reasonably expected to have an adverse effect on its ability to enter into
this Amendment No. 1 or to fulfill its obligations hereunder.

          6.  Severability of Provisions.  Any provision of this Amendment No.
              --------------------------
1 which is prohibited or unenforceable in any jurisdiction shall, as to such
jurisdiction, be ineffective to the extent of such prohibition or
unenforceability without invalidating the remaining provisions hereof or
affecting the validity or remaining provisions hereof or affecting the validity
or enforceability of such provision in any other jurisdiction.

          7.  Agreements to Remain in Full Force and Effect.  This Amendment
              ---------------------------------------------
No. 1 shall be deemed to be an amendment to the Stockholders' Agreement. All
references to the Stockholders' Agreement in any other agreements or documents
shall on and after the date hereof be deemed to refer to the Stockholders'
Agreement as amended hereby. Except as amended hereby, the Stockholders'
Agreement shall remain in full force and effect and is hereby ratified, adopted
and confirmed in all respects.

          8.  Heading.  The headings in this Amendment No. 1 are inserted for
              -------
convenience and identification only and are not intended to describe, interpret,
define or limit the scope, extent or intent of this Amendment No. 1 or any
provision thereof.

          9.  Counterparts.  This Amendment No. 1 may be executed in
              ------------
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

          10.  Governing Law.  This Amendment No. 1 shall be governed and
               -------------
construed in accordance with the laws of the State of Delaware.

                                       9
<PAGE>

          IN WITNESS WHEREOF, each of the parties has executed or consent this
Agreement be executed by its duly authorized officers as of the date first
written above.

                              AT&T WIRELESS PCS, INC.

                              By: /s/ W. Hague
                                 --------------------------------------
                                 Name:  William Hague
                                 Title:


                              TWR CELLULAR, INC.


                              By: /s/ W. Hague
                                 --------------------------------------
                                 Name: William Hague
                                 Title: Vice President


                              TELECORP PCS, INC.


                              By: /s/ Thomas Sullivan
                                 --------------------------------------
                                 Name: Thomas Sullivan
                                 Title: Executive Vice President


CASH EQUITY INVESTORS:


                              CB CAPITAL INVESTORS, L.P.

                              By:  CP Capital Investors, Inc.,
                                   its general partner

                              By: /s/ Michael R. Hannon
                                 --------------------------------------
                                 Name: Michael R. Hannon
                                 Title: General Partner
<PAGE>

                              NORTHWOOD VENTURES LLC


                              By: /s/ Peter G. Schiff
                                 ------------------------------------
                                 Name: Peter G. Schiff
                                 Title: President


                              NORTHWOOD CAPITAL PARTNERS LLC


                              By: /s/ Peter G. Schiff
                                 ------------------------------------
                                 Name: Peter G. Schiff
                                 Title: President


                              ONE LIBERTY FUND III, L.P.


                              By: /s/ Joseph T. McCullen, Jr.
                                 ------------------------------------
                                 Name: Joseph T. McCullen, Jr.
                                 Title: General Partner


                              ONE LIBERTY FUND IV, L.P.


                              By: /s/ Joseph T. McCullen, Jr.
                                 -----------------------------------
                                 Name: Joseph T. McCullen, Jr.
                                 Title: General Partner
<PAGE>

                              MEDIA COMMUNICATIONS
                              INVESTORS LIMITED PARTNERSHIP

                              By: M/C Investor General Partner - J. Inc., its
                                  general partner

                                  By: /s/ James F. Wade
                                     -------------------------------
                                     Name:
                                     Title:


                              MEDIA/COMMUNICATIONS PARTNERS III LIMITED
                              PARTNERSHIP

                              By: M/CP III General Partner - J. Inc., a general
                                  partner

                              By: M/CP III General Partner - J. Inc., a general
                                  partner

                                  By: /s/ James F. Wade
                                     -------------------------------
                                     Name:
                                     Title:


                              EQUITY-LINKED INVESTORS-II

                              By: ROHIT M. DESAI ASSOCIATES II, its general
                                  partner

                                  By: /s/ Frank J. Pados
                                     --------------------------------
                                     Name: Frank J. Pados, Jr.
                                     Title: Attorney-in-fact
<PAGE>

                              PRIVATE EQUITY INVESTORS III, L.P.

                              By: ROHIT M. DESAI ASSOCIATES III, its general
                                  partner

                                  By: /s/ Frank J. Pados
                                     ---------------------------------
                                     Name:  Frank J. Pados, Jr.
                                     Title: Attorney-in-Fact


                              HOAK COMMUNICATIONS PARTNERS, L.P.

                              By: HCP Investment, L.P., its general partner

                              By: Hoak Partners, L.L.C., its general partner

                                  By: /s/ James Hoak
                                     ---------------------------------
                                     Name:
                                     Title:


                              HCP CAPITAL FUND, L.P.

                              By:  James M. Hoak & Co., its general partner

                                  By: /s/ James Hoak
                                     ---------------------------------
                                     Name:
                                     Title:


                              ENTERGY TECHNOLOGY HOLDING COMPANY

                              By: /s/ Gary S. Fuqua
                                 ---------------------------------
                                 Name:  Gary S. Fuqua
                                 Title: President
<PAGE>

                              TORONTO DOMINION INVESTMENTS, INC.


                              By: /s/ Martha L. Gariepy
                                 ------------------------------------
                                 Name:  Martha L. Gariepy
                                 Title:  Vice President


                              WHITNEY EQUITY PARTNERS, L.P.

                              By: J.H. Whitney Equity Partners, L.L.C.,Its
                                  General Partner

                                  By: /s/ William Laverack, Jr.
                                     --------------------------------
                                     Name:
                                     Title:


                              WHITNEY STRATEGIC PARTNERS III, L.P.

                              By: J.H. Whitney Equity Partners III, L.L.C.,Its
                                  General Partner

                                  By: /s/ William Laverack, Jr.
                                     --------------------------------
                                     Name:
                                     Title:


                              J.H. WHITNEY III, L.P.

                              By: J.H. Whitney Equity Partners III, L.L.C.,Its
                                  General Partner

                                  By: /s/ William Laverack, Jr.
                                     --------------------------------
                                     Name:
                                     Title:
<PAGE>

                              GILDE INTERNATIONAL B.V.


                              By: /s/ Joseph McCullen Jr.
                                 --------------------------------------
                                 Name: Joseph McCullen, Jr.
                                 Title: Attorney-in-Fact

                              /s/ Thomas Sullivan
                              -----------------------------------------
                              Thomas Sullivan

                              /s/ Gerald Vento
                              -----------------------------------------
                              Gerald Vento

MANAGEMENT STOCKHOLDERS:

                              /s/ Thomas Sullivan
                              -----------------------------------------
                              Thomas Sullivan

                              /s/ Gerald Vento
                              -----------------------------------------
                              Gerald Vento
<PAGE>

                                                                      SCHEDULE I
                                   To Amendment No. 1 to Stockholders' Agreement

                    SCHEDULE XII to Stockholders' Agreement


Licenses included in clause (a) of the definition of "Business":

1.  AT&T PCS Licenses; provided, that, the AT&T PCS Licenses shall not include
    any portion of such Licenses covering Strafford County, New Hampshire within
    the Boston- Providence MTA.

2.  The TeleCorp Licenses

3.  The Permitted Cellular Licenses

                                      I-1
<PAGE>

                                                                       EXHIBIT A
                                   To Amendment No. 1 to Stockholders' Agreement

Amended and Restated Certificate of Incorporation:  See Exhibit 3.1.

                                      I-2
<PAGE>

                                                                      SCHEDULE V
                                                      To Stockholders' Agreement
                                              Puerto Rico Minimum Build Out Plan

                         SCHEDULE II to Amendment No.1
                          to Stockholders' Agreement

Year 11   1.16 million pops (30% of total pops) during the first year.


          The initial deployment consists of launching the core urban and
          suburban cities of the San Juan metropolitan area.

          Puerto Rico
          -----------
          San Juan
          Bayamon
          Guaynabo
          Caguas

Year 2    387,000 pops (10% of total pops) for an aggregate pop coverage of 40%.

          Year 2 consists of launching secondary cities throughout Puerto Rico
          and enhancing the coverage in all markets during the remainder of the
          year.

          Puerto Rico
          -----------
          Ponce
          Arecibo
          Humacao
          Mayaguez

Year 3    581,000 pops (15% of total pops) for an aggregate pop coverage of 55%.

          Year 3 consists of continuing to expand the secondary cities of Puerto
          Rico and key cities to the Virgin Islands and the important associated
          connected highways.

          Puerto Rico
          -----------
          Gurabo
          Cayey
          Aguadilla


- ---------------------------
/1/  The years are defined as the 12-month periods starting on the date the FCC
approves the transfer of the PCS licenses in the Puerto Rico MTA to TeleCorp.

                                      I-3
<PAGE>

          St. Thomas
          ----------
          Charlotte Amalie
          Heavensight

          St. Croix
          ---------
          Christiansted

Year 4    581,000 pops (15% of total pops) for an aggregate pop coverage of 70%.

          Year 4 consists of continuing to expand the secondary cities as well
          as enhancing the coverage and capacity of the core areas.

          Puerto Rico
          -----------
          Aguada
          Quebradillas
          Salinas

          Virgin Islands
          --------------
          Expansion of core areas in St. Thomas and St. Croix

Year 5    193,000 pops (5% of total pops) for an aggregate pop coverage of 75%.

          For all markets, year 5 consists of adding capacity sites and filling
          in the remaining suburban areas bringing the total pop coverage to
          75%.


          This Puerto Rico Minimum Build Out Plan shall be deemed part of the
Minimum Build Out Plan constituting Schedule V to the Stockholders' Agreement;
provided, however, that all references to percentages of pops required to be
- --------
covered as of various dates set forth on Schedule V attached to the Stockholders
Agreement before being amended hereby (the "Initial Schedule"), shall not
include pops from the Puerto Rico - U.S. Virgin Islands MTA. All percentages of
pops required to be covered in the Puerto Rico - U.S. Virgin Islands MTA shall
be measured separately from that in the Initial Schedule in accordance with this
Puerto Rico Minimum Build Out Plan.

                                      I-4

<PAGE>

                                                                   EXHIBIT 10.18
                                                                   -------------
                                                                  EXECUTION COPY
                              TELECORP PCS, INC.

                                 $575,000,000

              11 5/8% Senior Subordinated Discount Notes due 2009


                              PURCHASE AGREEMENT

                                                         April 20, 1999

CHASE SECURITIES INC.
BT ALEX. BROWN INCORPORATED
LEHMAN BROTHERS INC.
c/o Chase Securities Inc.
270 Park Avenue, 4th floor
New York, New York 10017


Ladies and Gentlemen:

          TeleCorp PCS, Inc., a Delaware corporation (the "Company"), proposes
to issue and sell $575,000,000 aggregate principal amount at maturity of its
11 5/8% Senior Subordinated Discount Notes due 2009 (the "Securities").  The
Securities will be issued pursuant to an Indenture to be dated as of April 23,
1999 (the "Indenture") among the Company, TeleCorp Communications, Inc. (the
"Subsidiary Guarantor") and Bankers Trust Company, as trustee (the "Trustee"),
and will be guaranteed on an unsecured senior subordinated basis by the
Subsidiary Guarantor.  The Company and the Subsidiary Guarantor hereby confirm
their agreement with Chase Securities Inc. ("CSI"), BT Alex. Brown Incorporated
and Lehman Brothers Inc. (together with CSI, the "Initial Purchasers")
concerning the purchase of the Securities from the Company by the several
Initial Purchasers.

          The Securities will be offered and sold to the Initial Purchasers
without being registered under the Securities Act of 1933, as amended (the
"Securities Act"), in reliance upon an exemption therefrom.  The Company has
prepared a preliminary offering memorandum dated April 2, 1999 (the "Preliminary
Offering Memorandum") and will prepare an offering memorandum dated the date
hereof (the "Offering Memorandum") setting forth information concerning the
Company and the Securities.  Copies of the Preliminary Offering Memorandum have
been, and copies of the Offering Memorandum will be, delivered by the Company to
the Initial Purchasers pursuant to the terms of this Agreement.  Any references
herein to the Preliminary Offering Memorandum and the Offering Memorandum shall
be deemed to include all amendments and supplements thereto, unless otherwise
noted.  The Company hereby confirms that it has authorized the use of the
Preliminary Offering Memorandum and the Offering Memorandum in connection with
the offering and resale of the Securities by the Initial Purchasers in
accordance with Section 2.
<PAGE>

                                                                               2

          Holders of the Securities (including the Initial Purchasers and their
direct and indirect transferees) will be entitled to the benefits of an Exchange
and Registration Rights Agreement, substantially in the form attached hereto as
Annex A (the "Registration Rights Agreement"), pursuant to which the Company
will agree to file with the Securities and Exchange Commission (the
"Commission") (i) a registration statement under the Securities Act (the
"Exchange Offer Registration Statement") registering an issue of senior
subordinated discount notes of the Company (the "Exchange Securities") which are
identical in all material respects to the Securities (except that the Exchange
Securities will not contain terms with respect to transfer restrictions or
registration rights) and (ii) under certain circumstances, a shelf registration
statement pursuant to Rule 415 under the Securities Act (the "Shelf Registration
Statement").

          Capitalized terms used but not defined herein shall have the meanings
given to such terms in the Offering Memorandum.

          1.   Representations, Warranties and Agreements of the Company. The
Company and the Subsidiary Guarantor represent and warrant to, and agree with,
the several Initial Purchasers on and as of the date hereof and the Closing Date
(as defined in Section 3) that:

          (a)  Each of the Preliminary Offering Memorandum and the Offering
     Memorandum, as of its respective date, did not, and on the Closing Date the
     Offering Memorandum will not, contain any untrue statement of a material
     fact or omit to state a material fact required to be stated therein or
     necessary in order to make the statements therein, in the light of the
     circumstances under which they were made, not misleading; provided that the
     Company and the Subsidiary Guarantor make no representation or warranty as
     to information contained in or omitted from the Preliminary Offering
     Memorandum or the Offering Memorandum in reliance upon and in conformity
     with written information relating to the Initial Purchasers furnished to
     the Company by or on behalf of any Initial Purchaser specifically for use
     therein (the "Initial Purchasers' Information").

          (b)  Each of the Preliminary Offering Memorandum and the Offering
     Memorandum, as of its respective date, contains all of the information
     that, if requested by a prospective purchaser of the Securities, would be
     required to be provided to such prospective purchaser pursuant to Rule
     144A(d)(4) under the Securities Act.

          (c)  Assuming the accuracy of the representations and warranties of
     the Initial Purchasers contained in Section 2 and their compliance with the
     agreements set forth therein, it is not necessary, in connection with the
     issuance and sale of the Securities to the Initial Purchasers and the
     offer, resale and delivery of the Securities by the Initial Purchasers in
     the manner contemplated by this Agreement and the Offering Memorandum, to
     register the Securities under the Securities Act or to qualify the
     Indenture under the Trust Indenture Act of 1939, as amended (the "Trust
     Indenture Act").

          (d)  Except as set forth an Exhibit A hereto, the Company has no
     subsidiaries and holds no minority interest in any entity.  The Company and
     each of its subsidiaries have been duly incorporated or formed and are
     validly existing as corporations, limited
<PAGE>

                                                                               3

     liability companies or limited partnerships in good standing under the laws
     of their respective jurisdictions of incorporation or formation, are duly
     qualified to do business and are in good standing as foreign corporations,
     limited liability companies or limited partnerships in each jurisdiction in
     which their respective ownership or lease of property or the conduct of
     their respective businesses requires such qualification, and have all power
     and authority necessary to own or hold their respective properties and to
     conduct the businesses in which they are engaged, except where the failure
     to so qualify or have such power or authority would not, singularly or in
     the aggregate, have a material adverse effect on the condition (financial
     or otherwise), results of operations, business or prospects of the Company
     and its subsidiaries taken as a whole (a "Material Adverse Effect").

          (e)  As of the Closing Date, the Company will have an authorized
     capitalization as set forth in the Offering Memorandum under the heading
     "Capitalization"; all of the outstanding shares of capital stock of the
     Company have been duly and validly authorized and issued and are fully paid
     and non-assessable; and the capital stock of the Company conforms in all
     material respects to the description thereof contained in the Offering
     Memorandum, including, in particular, under the heading "Description of
     Capital Stock". All of the outstanding shares of capital stock of each
     subsidiary of the Company have been duly and validly authorized and issued,
     are fully paid and non-assessable and, except as set forth on Exhibit A
     hereto, are owned directly or indirectly by the Company, free and clear of
     any lien, charge, encumbrance, security interest, restriction upon voting
     or transfer or any other claim of any third party, other than (i) liens,
     charges, encumbrances and security interests created by the Credit
     Agreement dated as of July 17, 1998, among the Company, the Lenders
     identified therein, The Chase Manhattan Bank, as Administrative Agent and
     Issuing Bank, TD Securities (USA) Inc., as Syndication Agent, and Bankers
     Trust Company, as Documentation Agent, and (ii) restrictions upon voting or
     transfer arising under (A) the Stockholders' Agreement dated as of July 17,
     1998, among AT&T Wireless PCS Inc., TWR Cellular, Inc., the investors
     identified therein, the individuals identified therein and the Company, (B)
     the Management Agreement dated as of July 17, 1999, between TeleCorp
     Management Corp. and the Company and (C) the Investors Stockholders'
     Agreement dated as of July 17, 1998, among AT&T Wireless PCS, Inc., CB
     Capital Investors, L.P., Private Equity Investors III, L.P., Equity-Linked
     Investors-II, Entergy Technology Holding Company, Whitney Equity Partners,
     L.P., Whitney Strategic Partners III, L.P., J.H. Whitney III, L.P.,
     Media/Communications Investors Limited Partnership, Media/Communications
     Partners III Limited Partnership, Toronto Dominion Investments, Inc.,
     Northwood Ventures LLC, Northwood Capital Partners LLC, One Liberty Fund
     III, L.P., Hoak Communications Partners, L.P., HCP Capital Fund, L.P. and
     the stockholders named therein.

          (f)  Each of the Company and the Subsidiary Guarantor has full right,
     power and authority to execute and deliver this Agreement, the Indenture,
     the Registration Rights Agreement and the Securities (in the case of the
     Company only) (collectively, the "Transaction Documents") and to perform
     its obligations hereunder and thereunder; and all corporate action required
     to be taken for the due and proper authorization, execution
<PAGE>

                                                                               4

     and delivery of each of the Transaction Documents and the consummation of
     the transactions contemplated thereby have been duly and validly taken.

          (g)  This Agreement has been duly authorized, executed and delivered
     by the Company and the Subsidiary Guarantor and constitutes a valid and
     legally binding agreement of the Company and the Subsidiary Guarantor.

          (h)  The Registration Rights Agreement has been duly authorized by the
     Company and the Subsidiary Guarantor and, when duly executed and delivered
     in accordance with its terms by each of the parties thereto, will
     constitute a valid and legally binding agreement of the Company and the
     Subsidiary Guarantor enforceable against the Company and the Subsidiary
     Guarantor in accordance with its terms, except to the extent that such
     enforceability may be limited by applicable bankruptcy, insolvency,
     fraudulent conveyance, reorganization, moratorium and other similar laws
     affecting creditors' rights generally and by general equitable principles
     (whether considered in a proceeding in equity or at law).

          (i)  The Indenture has been duly authorized by the Company and the
     Subsidiary Guarantor and, when duly executed and delivered in accordance
     with its terms by each of the parties thereto, will constitute a valid and
     legally binding agreement of the Company and the Subsidiary Guarantor
     enforceable against the Company and the Subsidiary Guarantor in accordance
     with its terms, except to the extent that such enforceability may be
     limited by applicable bankruptcy, insolvency, fraudulent conveyance,
     reorganization, moratorium and other similar laws affecting creditors'
     rights generally and by general equitable principles (whether considered in
     a proceeding in equity or at law).  On the Closing Date, the Indenture will
     conform in all material respects to the requirements of the Trust Indenture
     Act and the rules and regulations of the Commission applicable to an
     indenture which is qualified thereunder.

          (j)  The Securities have been duly authorized by the Company and the
     Subsidiary Guarantor and, when duly executed, authenticated, issued and
     delivered as provided in the Indenture and paid for as provided herein,
     will be duly and validly issued and outstanding and will constitute valid
     and legally binding obligations of the Company, as issuer, and the
     Subsidiary Guarantor, as guarantor, entitled to the benefits of the
     Indenture and enforceable against the Company as issuer, and the Subsidiary
     Guarantor, as guarantor, in accordance with their terms, except to the
     extent that such enforceability may be limited by applicable bankruptcy,
     insolvency, fraudulent conveyance, reorganization, moratorium and other
     similar laws affecting creditors' rights generally and by general equitable
     principles (whether considered in a proceeding in equity or at law).

          (k)  Each Transaction Document and each other document described in
     the Offering Memorandum conforms in all material respects to the
     description thereof contained in the Offering Memorandum.

          (l)  The execution, delivery and performance by the Company and the
     Subsidiary Guarantor of each of the Transaction Documents to which each is
     a party, the issuance,
<PAGE>

                                                                               5

     authentication, sale and delivery of the Securities and compliance by the
     Company and the Subsidiary Guarantor with the terms thereof and the
     consummation of the transactions contemplated by the Transaction Documents
     will not conflict with or result in a breach or violation of any of the
     terms or provisions of, or constitute a default under, or result in the
     creation or imposition of any lien, charge or encumbrance upon any property
     or assets of the Company or any of its subsidiaries (other than as provided
     by the Indenture) pursuant to, any material indenture, mortgage, deed of
     trust, loan agreement or other material agreement or instrument to which
     the Company or any of its subsidiaries is a party or by which the Company
     or any of its subsidiaries is bound or to which any of the property or
     assets of the Company or any of its subsidiaries is subject, nor will such
     actions result in any violation of the provisions of the charter or by-laws
     of the Company or any of its subsidiaries or any statute or any judgment,
     order, decree, rule or regulation of any court or arbitrator or
     governmental agency or body having jurisdiction over the Company or any of
     its subsidiaries or any of their properties or assets; and no consent,
     approval, authorization or order of, or filing or registration with, any
     such court or arbitrator or governmental agency or body under any such
     statute, judgment, order, decree, rule or regulation is required for the
     execution, delivery and performance by the Company and the Subsidiary
     Guarantor of each of the Transaction Documents to which each is a party,
     the issuance, authentication, sale and delivery of the Securities and
     compliance by the Company and the Subsidiary Guarantor with the terms
     thereof and the consummation of the transactions contemplated by the
     Transaction Documents, except for such consents, approvals, authorizations,
     filings, registrations or qualifications (i) which shall have been obtained
     or made prior to the Closing Date, (ii) as may be required to be obtained
     or made under the Securities Act and the rules and regulations promulgated
     thereunder and applicable state securities laws as provided in the
     Registration Rights Agreement, (iii) the failure to obtain (A) could not
     reasonably be expected to have a Material Adverse Effect or (B) would not
     materially and adversely affect the legal, valid and binding obligations of
     the Company or the Subsidiary Guarantor under the Transaction Documents or
     the ability of the Company or the Subsidiary Guarantor to perform its
     obligations under any of the Transaction Documents or (iv) which are
     otherwise not material in the context of the sale of the Securities.

          (m)  PricewaterhouseCoopers LLP are independent certified public
     accountants with respect to the Company and its subsidiaries within the
     meaning of Rule 101 of the Code of Professional Conduct of the American
     Institute of Certified Public Accountants ("AICPA") and its interpretations
     and rulings thereunder.  The historical financial statements (including the
     related notes) contained in the Offering Memorandum comply in all material
     respects with the requirements applicable to a registration statement on
     Form S-1 under the Securities Act (except that disclosure of earnings per
     share and certain supporting schedules are omitted); such financial
     statements have been prepared in accordance with generally accepted
     accounting principles consistently applied throughout the periods covered
     thereby and fairly present the financial position of the entities purported
     to be covered thereby at the respective dates indicated and the results of
     their operations and their cash flows for the respective periods indicated;
     and the historical financial information contained in the Offering
     Memorandum under the headings "Capitalization", "Selected Historical and
     Pro Forma Consolidated Financial Information" and "Management's Discussion
     and Analysis of Financial Condition and
<PAGE>

                                                                               6

     Results of Operations" is derived from the accounting records of the
     entities covered thereby and fairly present the information purported to be
     shown thereby. The pro forma financial information contained in the
     Offering Memorandum has been prepared on a basis consistent with the
     historical financial statements contained in the Offering Memorandum
     (except for the pro forma adjustments specified therein), gives effect to
     assumptions made on a reasonable basis and fairly presents the historical
     and proposed transactions contemplated by the Offering Memorandum and the
     Transaction Documents. The other historical financial information and data
     included in the Offering Memorandum are, in all material respects, fairly
     presented.

          (n)  There are no legal or governmental proceedings pending to which
     the Company or any of its subsidiaries is a party or of which any property
     or assets of the Company or any of its subsidiaries is the subject, other
     than proceedings described in the Offering Memorandum affecting the
     wireless communications industry generally which (i) singularly or in the
     aggregate, if determined adversely to the Company or any of its
     subsidiaries, could reasonably be expected to have a Material Adverse
     Effect or (ii) question the validity or enforceability of any of the
     Transaction Documents or any action taken or to be taken pursuant thereto;
     and to the best knowledge of the Company, no such proceedings are
     threatened or contemplated by governmental authorities or threatened by
     others.

          (o)  To the best knowledge of the Company, no action has been taken
     and no statute, rule, regulation or order has been enacted, adopted or
     issued by any governmental agency or body which prevents the issuance of
     the Securities or suspends the sale of the Securities in any jurisdiction;
     no injunction, restraining order or order of any nature by any federal or
     state court of competent jurisdiction has been issued with respect to the
     Company or any of its subsidiaries which would prevent or suspend the
     issuance or sale of the Securities or the use of the Preliminary Offering
     Memorandum or the Offering Memorandum in any jurisdiction; no action, suit
     or proceeding is pending against or, to the best knowledge of the Company,
     threatened against or affecting the Company or any of its subsidiaries
     before any court or arbitrator or any governmental agency, body or
     official, domestic or foreign, which could reasonably be expected to
     interfere with or adversely affect the issuance of the Securities or in any
     manner draw into question the validity or enforceability of any of the
     Transaction Documents or any action taken or to be taken pursuant thereto;
     and the Company has complied with any and all requests by any securities
     authority in any jurisdiction for additional information to be included in
     the Preliminary Offering Memorandum and the Offering Memorandum.

          (p)  Neither the Company nor any of its subsidiaries is (i) in
     violation of its charter, by-laws, operating agreement or limited
     partnership agreement, as appropriate, (ii) in default, and no event has
     occurred which, with notice or lapse of time or both, would constitute a
     default, in the due performance or observance of any term, covenant or
     condition contained in any material indenture, mortgage, deed of trust,
     loan agreement or other material agreement or instrument to which it is a
     party or by which it is bound or to which any of its property or assets is
     subject or (iii) in violation of any law, ordinance, governmental rule,
     regulation or court decree to which it or its property or assets may be
<PAGE>

                                                                               7

     subject, except, in the case of clause (ii) or clause (iii), for any
     default or violation that could not reasonably be expected to have a
     Material Adverse Effect.

          (q)  Except as disclosed in the Offering Memorandum, the Company and
     each of its subsidiaries possess all material licenses, certificates,
     authorizations and permits issued by, and have made all declarations and
     filings with, the appropriate federal, state or foreign regulatory agencies
     or bodies which are necessary or desirable for the ownership of their
     respective properties or the conduct of their respective businesses as
     described in the Offering Memorandum, except where the failure to possess
     or make the same would not, singularly or in the aggregate, have a Material
     Adverse Effect, and neither the Company nor any of its subsidiaries has
     received notification of any revocation or modification of any such
     license, certificate, authorization or permit or has any reason to believe
     that any such license, certificate, authorization or permit will not be
     renewed in the ordinary course.

          (r)  The Company and each of its subsidiaries have filed all federal,
     state, local and foreign income and franchise tax returns required to be
     filed through the date hereof and have paid all taxes due thereon, and no
     tax deficiency has been determined adversely to the Company or any of its
     subsidiaries which has had (nor does the Company or any of its subsidiaries
     have any knowledge of any tax deficiency which, if determined adversely to
     the Company or any of its subsidiaries, could reasonably be expected to
     have) a Material Adverse Effect.

          (s)  Neither the Company nor any of its subsidiaries is (i) an
     "investment company" or a company "controlled by" an investment company
     within the meaning of the Investment Company Act of 1940, as amended (the
     "Investment Company Act"), and the rules and regulations of the Commission
     thereunder or (ii) a "holding company" or a "subsidiary company" of a
     holding company or an "affiliate" thereof within the meaning of the Public
     Utility Holding Company Act of 1935, as amended.

          (t)  The Company and each of its subsidiaries maintain a system of
     internal accounting controls sufficient to provide reasonable assurance
     that (i) transactions are executed in accordance with management's general
     or specific authorizations; (ii) transactions are recorded as necessary to
     permit preparation of financial statements in conformity with generally
     accepted accounting principles and to maintain asset accountability; (iii)
     access to financial assets is permitted only in accordance with
     management's general or specific authorization; and (iv) the recorded
     accountability for assets is compared with the existing assets at
     reasonable intervals and appropriate action is taken with respect to any
     differences to the extent necessary.

          (u)  The Company and each of its subsidiaries have insurance covering
     their respective properties, operations, personnel and businesses, which
     insurance is in amounts and insures against such losses and risks as are
     adequate to protect the Company and its subsidiaries and their respective
     businesses, determined by reference to the insurance maintained by other
     companies in the wireless communications industry.  Neither the Company nor
     any of its subsidiaries has received notice from any insurer or
<PAGE>

                                                                               8

     agent of such insurer that capital improvements or other expenditures are
     required or necessary to be made in order to continue such insurance.

          (v)  Except as disclosed in the Offering Memorandum, the Company and
     each of its subsidiaries own or possess adequate rights to use all patents,
     patent applications, trademarks, service marks, trade names, trademark
     registrations, service mark registrations, copyrights, licenses and know-
     how (including trade secrets and other unpatented and/or unpatentable
     proprietary or confidential information, systems or procedures) necessary
     for the conduct of their respective businesses, except where the failure to
     possess such rights could not reasonably be expected to have a Material
     Adverse Effect; and the conduct of their respective businesses will not
     conflict in any respect with, and the Company and its subsidiaries have not
     received any notice of any claim of conflict with, any such rights of
     others that, if determined adversely to the Company or any of its
     subsidiaries would, individually or in the aggregate, have a Material
     Adverse Effect.

          (w)  The Company and each of its subsidiaries have good and marketable
     title in fee simple to, or have valid rights to lease or otherwise use, all
     items of real and personal property which are material to the business of
     the Company and its subsidiaries, in each case free and clear of all liens,
     encumbrances, claims and defects and imperfections of title except such as
     (i) do not materially interfere with the use made and proposed to be made
     of such property by the Company and its subsidiaries or (ii) could not
     reasonably be expected to have a Material Adverse Effect.

          (x)  No labor disturbance by or dispute with the employees of the
     Company or any of its subsidiaries exists or, to the best knowledge of the
     Company, is contemplated or threatened.

          (y)  No "prohibited transaction" (as defined in Section 406 of the
     Employee Retirement Income Security Act of 1974, as amended, including the
     regulations and published interpretations thereunder ("ERISA"), or Section
     4975 of the Internal Revenue Code of 1986, as amended from time to time
     (the "Code")) or "accumulated funding deficiency" (as defined in Section
     302 of ERISA) or any of the events set forth in Section 4043(b) of ERISA
     (other than events with respect to which the 30-day notice requirement
     under Section 4043 of ERISA has been waived) has occurred with respect to
     any employee benefit plan of the Company or any of its subsidiaries which
     could reasonably be expected to have a Material Adverse Effect; each such
     employee benefit plan is in compliance in all material respects with
     applicable law, including ERISA and the Code, except where such
     noncompliance, individually or in the aggregate, could not reasonably be
     expected to have a Material Adverse Effect; the Company and each of its
     subsidiaries have not incurred and do not expect to incur liability under
     Title IV of ERISA with respect to the termination of, or withdrawal from,
     any pension plan for which the Company or any of its subsidiaries would
     have any liability; and each such pension plan that is intended to be
     qualified under Section 401(a) of the Code has filed for or received a
     favorable determination letter from the Internal Revenue Service and the
     Company has not amended any such pension plan in any way that could
     reasonably be expected to cause the loss of such qualification.
<PAGE>

                                                                               9

          (z)  There has been no storage, generation, transportation, handling,
     treatment, disposal, discharge, emission or other release of any kind of
     toxic or other wastes or other hazardous substances by, due to or caused by
     the Company or any of its subsidiaries (or, to the best knowledge of the
     Company, any other entity (including any predecessor) for whose acts or
     omissions the Company or any of its subsidiaries is or could reasonably be
     expected to be liable) upon any of the property now or previously owned or
     leased by the Company or any of its subsidiaries, or upon any other
     property, in violation of any statute or any ordinance, rule, regulation,
     order, judgment, decree or permit or which would, under any statute or any
     ordinance, rule (including rule of common law), regulation, order,
     judgment, decree or permit, give rise to any liability, except for any
     violation or liability that could not reasonably be expected to have,
     singularly or in the aggregate with all such violations and liabilities, a
     Material Adverse Effect; and there has been no disposal, discharge,
     emission or other release of any kind onto such property or into the
     environment surrounding such property of any toxic or other wastes or other
     hazardous substances with respect to which the Company has knowledge,
     except for any such disposal, discharge, emission or other release of any
     kind which could not reasonably be expected to have, singularly or in the
     aggregate with all such discharges and other releases, a Material Adverse
     Effect.

          (aa) Neither the Company nor, to the best knowledge of the Company
     and the Subsidiary Guarantor, any director, officer, agent, employee or
     other person associated with or acting on behalf of the Company or any of
     its subsidiaries has (i) used any corporate funds for any unlawful
     contribution, gift, entertainment or other unlawful expense relating to
     political activity; (ii) made any direct or indirect unlawful payment to
     any foreign or domestic government official or employee from corporate
     funds; (iii) violated or is in violation of any provision of the Foreign
     Corrupt Practices Act of 1977, as amended; or (iv) made any unlawful bribe,
     rebate, payoff, influence payment, kickback or other unlawful payment.

          (bb) Except as described in the Offering Memorandum, there are no
     outstanding subscriptions, rights, warrants, calls or options to acquire,
     or instruments convertible into or exchangeable for, or agreements or
     understandings with respect to the sale or issuance of, any shares of
     capital stock of or other equity or other ownership interest in the Company
     or any of its subsidiaries.

          (cc) Neither the Company nor any of its subsidiaries owns any "margin
     securities" as that term is defined in Regulation U of the Board of
     Governors of the Federal Reserve System (the "Federal Reserve Board"), and
     none of the proceeds of the sale of the Securities will be used, directly
     or indirectly, for the purpose of purchasing or carrying any margin
     security, for the purpose of reducing or retiring any indebtedness which
     was originally incurred to purchase or carry any margin security or for any
     other purpose which might cause any of the Securities to be considered a
     "purpose credit" within the meanings of Regulation T, U or X of the Federal
     Reserve Board.

          (dd) Neither the Company nor any of its subsidiaries is a party to
     any contract, agreement or understanding with any person that would give
     rise to a valid claim against
<PAGE>

                                                                              10

     the Company or the Initial Purchasers for a brokerage commission, finder's
     fee or like payment in connection with the offering and sale of the
     Securities.

          (ee)  The Securities satisfy the eligibility requirements of Rule
     144A(d)(3) under the Securities Act.

          (ff)  None of the Company, any of its affiliates or any person acting
     on its or their behalf has engaged or will engage in any directed selling
     efforts (as such term is defined in Regulation S under the Securities Act
     ("Regulation S")), and all such persons have complied and will comply with
     the offering restrictions requirement of Regulation S to the extent
     applicable; provided that no representation or warranty is made with
     respect to CSI.

          (gg)  Neither the Company nor any of its affiliates has, directly or
     through any agent, sold, offered for sale, solicited offers to buy or
     otherwise negotiated in respect of, any security (as such term is defined
     in the Securities Act), which is or will be integrated with the sale of the
     Securities in a manner that would require registration of the Securities
     under the Securities Act.

          (hh)  None of the Company or any of its affiliates or any other person
     acting on its or their behalf has engaged, in connection with the offering
     of the Securities, in any form of general solicitation or general
     advertising within the meaning of Rule 502(c) under the Securities Act.

          (ii)  There are no securities of the Company registered under the
     Securities Exchange Act of 1934, as amended (the "Exchange Act"), or listed
     on a national securities exchange or quoted in a U.S. automated inter-
     dealer quotation system.

          (jj)  Neither the Company nor the Subsidiary Guarantor has taken or
     will take, directly or indirectly, any action prohibited by Regulation M
     under the Exchange Act in connection with the offering of the Securities.

          (kk)  No forward-looking statement (within the meaning of Section 27A
     of the Securities Act and Section 21E of the Exchange Act) contained in the
     Preliminary Offering Memorandum or the Offering Memorandum has been made or
     reaffirmed without a reasonable basis or has been disclosed other than in
     good faith.

          (ll)  None of the Company or any of its subsidiaries does business
     with the government of Cuba or with any person or affiliate located in Cuba
     within the meaning of Florida Statutes Section 517.075.

          (mm)  The Company and its subsidiaries are in the process of
     evaluating the accuracy of the representations made by (i) the vendors from
     whom components of the Company's internal information technology systems
     were purchased and (ii) the vendors from whom all network hardware was
     purchased regarding the risk that the products sold by such vendors may be
     unable to recognize and properly execute date-sensitive functions involving
     certain dates prior to and any dates after December 31, 1999 (the
<PAGE>

                                                                              11

     "Year 2000 Problem"), and have determined that such evaluation will be
     completed on a timely basis without material expense; and the Company
     believes, after due inquiry, that each supplier, vendor, customer or
     financial service organization used or serviced by the Company and its
     subsidiaries has remedied or will remedy on a timely basis the Year 2000
     Problem.

          (nn)  Since the date as of which information is given in the Offering
     Memorandum, (i) there has been no material adverse change or any
     development involving a prospective material adverse change in the
     condition, financial or otherwise, or in the earnings, business affairs,
     management or business prospects of the Company and its subsidiaries, taken
     as a whole, whether or not arising in the ordinary course of business, (ii)
     neither the Company nor the Subsidiary Guarantor has incurred any material
     liability or obligation, direct or contingent, other than in the ordinary
     course of business, (iii) neither the Company nor the Subsidiary Guarantor
     has entered into any material transaction other than in the ordinary course
     of business and (iv) there has not been any change in the capital stock or
     long-term debt of the Company or the Subsidiary Guarantor, or any dividend
     or distribution of any kind declared, paid or made by the Company or the
     Subsidiary Guarantor on any class of their respective capital stock, other
     than, with respect to long-term debt of the Company, the issuance of
     additional junior subordinated notes pursuant to the Note Purchase
     Agreement dated as of May 11, 1998, between the Company and Lucent
     Technologies Inc. (the "Lucent Note Purchase Agreement").

          (oo)  (i) The Company and its subsidiaries have the full use and
     benefit of all broadband personal communications services ("PCS") licenses
     issued by the Federal Communications Commission (the "FCC") to the Company
     and its subsidiaries (the "Licenses") necessary to operate assets
     constituting a radio communications system authorized under the rules for
     wireless communications services (including any license and the network,
     marketing, distribution, sales, customer interface and operations functions
     relating thereto) owned and operated by the Company or any of its
     subsidiaries in the Major Trading Areas (as defined in 47 C.F.R. (S)24.202)
     and the Basic Trading Areas (as defined in 47 C.F.R. (S)24.202) listed on
     Parts A, B, C and D of Exhibit B attached hereto and each other area in
     which the Company or any of its subsidiaries conducts a broadband PCS
     business and will have the full use and benefit of the Licenses listed on
     (A) Part E of Exhibit B upon consummation of the acquisition of a 20 MHz
     PCS license covering the San Juan MTA from AT&T Corporation and (B) Part F
     of Exhibit B upon consummation of acquisition of 15 MHz C-Block PCS
     licenses covering the Louisiana BTAs of Alexandria, Lake Charles and Monroe
     from Wireless 2000, Inc.; (ii) such Licenses have been duly issued by the
     FCC, are (in the case of Licenses listed on Parts A, B, C and D of Exhibit
     B) or will be (upon consummation of the relevant transaction in the case of
     Licenses listed on Parts E and F of Exhibit B) held by a wholly owned
     subsidiary of the Company and are in full force and effect and (iii) the
     Company and its subsidiaries are in compliance in all material respects
     with all of the provisions of each such License held by any of them.

          (pp)  (i) The Company and each of its subsidiaries are in compliance
     in all material respects with the Communications Act of 1934, and any
     similar or successor
<PAGE>

                                                                              12

     federal statute, and the rules and regulations and published policies of
     the FCC thereunder, as amended and as in effect from time to time
     (collectively, the "Communications Act"), and all requirements of the FCC,
     including the "very small business" requirements; (ii) the Company has no
     knowledge of any investigation, notice of apparent liability, violation,
     forfeiture or other order or complaint issued by or before the FCC, or of
     any other proceedings (other than proceedings relating to the wireless
     communications industries generally) of or before the FCC, which could
     reasonably be expected to have a Material Adverse Effect; (iii) no event
     has occurred which (A) has resulted in, or after notice or lapse of time or
     both would result in, revocation, suspension, adverse modifications, non-
     renewal, impairment, restriction or termination of, or order of forfeiture
     with respect to, any License in any respect which could reasonably be
     expected to have a Material Adverse Effect or (B) affects or could
     reasonably be expected in the future to affect any of the rights of the
     Company or any of its subsidiaries under any License held by the Company or
     any of its subsidiaries in any respect which could reasonably be expected
     to have a Material Adverse Effect; (iv) the Company and each of its
     subsidiaries have duly filed in a timely manner all material filings,
     reports, applications, documents, instruments and information required to
     be filed under the Communications Act, and all such filings were when made
     true, correct and complete in all material respects; and (v) the Company
     has no reason to believe that each License of the Company or any of its
     subsidiaries will not be renewed in the ordinary course.

          (qq) The Company is in compliance with its "Minimum Build-Out Plan",
     as defined in the Securities Purchase Agreement dated January 23, 1998,
     among AT&T Wireless PCS Inc., TWR Cellular, Inc., the Cash Equity Investors
     (as identified therein), the TeleCorp Investors (as identified therein),
     Gerald Vento, Thomas Sullivan and the Company (the "Securities Purchase
     Agreement").

          2.   Purchase and Resale of the Securities. (a) On the basis of the
representations, warranties and agreements contained herein, and subject to the
terms and conditions set forth herein, the Company agrees to issue and sell to
each of the Initial Purchasers, severally and not jointly, and each of the
Initial Purchasers, severally and not jointly, agrees to purchase from the
Company, the principal amount at maturity of Securities set forth opposite the
name of such Initial Purchaser on Schedule 1 hereto at a purchase price equal to
55.2706% of the principal amount at maturity thereof. The Company shall not be
obligated to deliver any of the Securities except upon payment for all of the
Securities to be purchased as provided herein.

          (b)  The Initial Purchasers have advised the Company that they propose
to offer the Securities for resale upon the terms and subject to the conditions
set forth herein and in the Offering Memorandum.  Each Initial Purchaser,
severally and not jointly, represents, warrants and agrees that (i) it is
purchasing the Securities pursuant to a private sale exempt from registration
under the Securities Act, (ii) it has not solicited offers for, or offered or
sold, and will not solicit offers for, or offer or sell, the Securities by means
of any form of general solicitation or general advertising within the meaning of
Rule 502(c) of Regulation D under the Securities Act ("Regulation D") or in any
manner involving a public offering within the meaning of Section 4(2) of the
Securities Act and (iii) it has solicited and will solicit offers for the
Securities only from, and has offered or sold and will offer, sell or deliver
the Securities, as part of their
<PAGE>

                                                                              13


initial offering, only (A) within the United States to persons whom it
reasonably believes to be qualified institutional buyers ("Qualified
Institutional Buyers"), as defined in Rule 144A under the Securities Act ("Rule
144A"), or if any such person is buying for one or more institutional accounts
for which such person is acting as fiduciary or agent, only when such person has
represented to it that each such account is a Qualified Institutional Buyer to
whom notice has been given that such sale or delivery is being made in reliance
on Rule 144A and in each case, in transactions in accordance with Rule 144A and
(B) outside the United States to persons other than U.S. persons in reliance on
Regulation S.

          (c)    In connection with the offer and sale of Securities in reliance
on Regulation S, each Initial Purchaser, severally and not jointly, represents,
warrants and agrees that:

          (i)    the Securities have not been registered under the Securities
     Act and may not be offered or sold within the United States or to, or for
     the account or benefit of, U.S. persons except pursuant to an exemption
     from, or in transactions not subject to, the registration requirements of
     the Securities Act;

          (ii)   such Initial Purchaser has offered and sold the Securities, and
     will offer and sell the Securities, (A) as part of their distribution at
     any time and (B) otherwise until 40 days after the later of the
     commencement of the offering of the Securities and the Closing Date, only
     in accordance with Regulation S or Rule 144A or any other available
     exemption from registration under the Securities Act;

          (iii)  none of such Initial Purchaser or any of its affiliates or any
     other person acting on its or their behalf has engaged or will engage in
     any directed selling efforts with respect to the Securities, and all such
     persons have complied and will comply with the offering restriction
     requirements of Regulation S;

          (iv)   at or prior to the confirmation of sale of any Securities sold
     in reliance on Regulation S, it will have sent to each distributor, dealer
     or other person receiving a selling concession, fee or other remuneration
     that purchases Securities from it during the restricted period a
     confirmation or notice to substantially the following effect:

          "The Securities covered hereby have not been registered under the U.S.
          Securities Act of 1933, as amended (the "Securities Act"), and may not
          be offered or sold within the United States or to, or for the account
          or benefit of, U.S. persons (i) as part of their distribution at any
          time or (ii) otherwise until 40 days after the later of the
          commencement of the offering of the Securities and the date of
          original issuance of the Securities, except in accordance with
          Regulation S or Rule 144A or any other available exemption from
          registration under the Securities Act. Terms used above have the
          meanings given to them by Regulation S."; and

          (v)    it and each of its affiliates has not and will not enter into
     any contractual arrangement with any distributor with respect to the
     distribution of the Securities, except with its affiliates or with the
     prior written consent of the Company.
<PAGE>

                                                                              14

Terms used in this Section 2(c) have the meanings given to them by Regulation S.

          (d)  Each Initial Purchaser, severally and not jointly, represents,
warrants and agrees that (i) it has not offered or sold and prior to the date
that is six months after the Closing Date will not offer or sell any Securities
to persons in the United Kingdom except to persons whose ordinary activities
involve them in acquiring, holding, managing or disposing of investments (as
principal or agent) for the purposes of their businesses or otherwise in
circumstances which have not resulted and will not result in an offer to the
public in the United Kingdom within the meaning of the Public Offers of
Securities Regulations 1995; (ii) it has complied and will comply with all
applicable provisions of the Financial Services Act 1986 and the Public Offers
of Securities Regulations 1995 with respect to anything done by it in relation
to the Securities in, from or otherwise involving the United Kingdom; and (iii)
it has only issued or passed on and will only issue or pass on in the United
Kingdom any document received by it in connection with the issue of the
Securities to a person who is of a kind described in Article 11(3) of the
Financial Services Act 1986 (Investment Advertisements) (Exemptions) Order 1996
or is a person to whom such document may otherwise lawfully be issued or passed
on.

          (e)  Each Initial Purchaser, severally and not jointly, agrees that,
prior to or simultaneously with the confirmation of sale by such Initial
Purchaser to any purchaser of any of the Securities purchased by such Initial
Purchaser from the Company pursuant hereto, such Initial Purchaser shall furnish
to that purchaser a copy of the Offering Memorandum (and any amendment or
supplement thereto that the Company shall have furnished to such Initial
Purchaser prior to the date of such confirmation of sale).  In addition to the
foregoing, each Initial Purchaser acknowledges and agrees that the Company and,
for purposes of the opinions to be delivered to the Initial Purchasers pursuant
to Sections 5(d) and (e), counsel for the Company and for the Initial
Purchasers, respectively, may rely upon the accuracy of the representations and
warranties of the Initial Purchasers and their compliance with their agreements
contained in this Section 2, and each Initial Purchaser hereby consents to such
reliance.

          (f)  Each Initial Purchaser, severally and not jointly, represents and
warrants that this Agreement has been duly authorized, executed and delivered by
such Initial Purchaser.

          (g)  The Company and the Subsidiary Guarantor acknowledge and agree
that the Initial Purchasers may sell Securities to any affiliate of an Initial
Purchaser and that any such affiliate may sell Securities purchased by it to an
Initial Purchaser.

          3.   Delivery of and Payment for the Securities.  (a)  Delivery of and
payment for the Securities shall be made at the offices of Cravath, Swaine &
Moore, New York, New York, or at such other place as shall be agreed upon by the
Initial Purchasers and the Company, at 10:00 a.m., New York City time, on April
23, 1999, or at such other time or date, not later than seven full business days
thereafter, as shall be agreed upon by the Initial Purchasers and the Company
(such date and time of payment and delivery being referred to herein as the
"Closing Date").

          (b)  On the Closing Date, payment of the purchase price for the
Securities shall be made to the Company by wire or book-entry transfer of same-
day funds to such account or accounts as the Company shall specify prior to the
Closing Date or by such other means as the
<PAGE>

                                                                              15

parties hereto shall agree prior to the Closing Date against delivery to the
Initial Purchasers of the certificates evidencing the Securities. Time shall be
of the essence, and delivery at the time and place specified pursuant to this
Agreement is a further condition of the obligations of the Initial Purchasers
hereunder. Upon delivery, the Securities shall be in global form, registered in
such names and in such denominations as CSI on behalf of the Initial Purchasers
shall have requested in writing not less than two full business days prior to
the Closing Date. The Company agrees to make one or more global certificates
evidencing the Securities available for inspection by CSI on behalf of the
Initial Purchasers in New York, New York at least 24 hours prior to the Closing
Date.

          4.   Further Agreements of the Company and the Subsidiary Guarantor.
The Company and the Subsidiary Guarantor agree with each of the several Initial
Purchasers:

          (a)  at all times prior to the resale of the Securities by the Initial
     Purchasers, to advise the Initial Purchasers promptly and, if requested,
     confirm such advice in writing, of the happening of any event which makes
     any statement of a material fact made in the Offering Memorandum untrue or
     which requires the making of any additions to or changes in the Offering
     Memorandum (as amended or supplemented from time to time) in order to make
     the statements therein, in the light of the circumstances under which they
     were made, not misleading; to advise the Initial Purchasers of any order of
     any governmental authority preventing or suspending the use of the
     Preliminary Offering Memorandum or the Offering Memorandum, of any
     suspension of the qualification of the Securities for offering or sale in
     any jurisdiction and of the initiation or threatening of any proceeding for
     any such purpose promptly upon receipt of notice of such order, suspension
     or initiation or threatening of any such proceeding; and, prior to the
     resale of the Securities by the Initial Purchasers, to use its best efforts
     to prevent the issuance of any such order preventing or suspending the use
     of the Preliminary Offering Memorandum or the Offering Memorandum or
     suspending any such qualification and, if any such suspension is issued, to
     obtain the lifting thereof at the earliest possible time and thereafter to
     use commercially reasonable efforts to prevent the issuance of any such
     order preventing or suspending the use of the Preliminary Offering
     Memorandum or the Offering Memorandum or suspending any such qualification
     and, if any such suspension is issued, to obtain the lifting thereof at the
     earliest possible time;

          (b)  to furnish promptly to each of the Initial Purchasers and counsel
     for the Initial Purchasers, without charge, as many copies of the
     Preliminary Offering Memorandum and the Offering Memorandum (and any
     amendments or supplements thereto) as may be reasonably requested;

          (c)  prior to making any amendment or supplement to the Offering
     Memorandum, to furnish a copy thereof to each of the Initial Purchasers and
     counsel for the Initial Purchasers and not to effect any such amendment or
     supplement to which the Initial Purchasers shall reasonably object by
     notice to the Company after a reasonable period (under the circumstances)
     to review;

          (d)  if, at any time prior to completion of the resale of the
     Securities by the Initial Purchasers, any event shall occur or condition
     exist as a result of which it is necessary, in
<PAGE>

                                                                              16

     the reasonable opinion of counsel for the Initial Purchasers or counsel for
     the Company, to amend or supplement the Offering Memorandum in order that
     the Offering Memorandum will not include an untrue statement of a material
     fact or omit to state a material fact necessary in order to make the
     statements therein, in the light of the circumstances existing at the time
     it is delivered to a purchaser, not misleading, or if it is necessary to
     amend or supplement the Offering Memorandum to comply with applicable law,
     to promptly prepare such amendment or supplement as may be necessary to
     correct such untrue statement or omission or so that the Offering
     Memorandum, as so amended or supplemented, will comply with applicable law;

          (e)  for so long as the Securities are outstanding and are "restricted
     securities" within the meaning of Rule 144(a)(3) under the Securities Act,
     to furnish to holders of the Securities and prospective purchasers of the
     Securities designated by such holders, upon request of such holders or such
     prospective purchasers, the information required to be delivered pursuant
     to Rule 144A(d)(4) under the Securities Act, unless the Company is then
     subject to and in compliance with Section 13 or 15(d) of the Exchange Act
     (the foregoing agreement being for the benefit of the holders from time to
     time of the Securities and prospective purchasers of the Securities
     designated by such holders);

          (f)  for so long as the Securities are outstanding, to furnish to the
     Initial Purchasers copies of any annual reports, quarterly reports and
     current reports filed by the Company with the Commission on Forms 10-K, 10-
     Q and 8-K, or such other similar forms as may be designated by the
     Commission, and such other documents, reports and information as shall be
     furnished by the Company to the Trustee or to the holders of the Securities
     pursuant to the Indenture or the Exchange Act or any rule or regulation of
     the Commission thereunder;

          (g)  to promptly take from time to time such actions as the Initial
     Purchasers may reasonably request to qualify the Securities for offering
     and sale under the securities or Blue Sky laws of such jurisdictions as the
     Initial Purchasers may designate and to continue such qualifications in
     effect for so long as required for the resale of the Securities; and to
     arrange for the determination of the eligibility for investment of the
     Securities under the laws of such jurisdictions as the Initial Purchasers
     may reasonably request; provided that the Company and its subsidiaries
     shall not be obligated to qualify as foreign corporations in any
     jurisdiction in which they are not so qualified or to file a general
     consent to service of process in any jurisdiction;

          (h)  to provide reasonable assistance to the Initial Purchasers in
     arranging for the Securities to be designated Private Offerings, Resales
     and Trading through Automated Linkages ("PORTAL") Market securities in
     accordance with the rules and regulations adopted by the National
     Association of Securities Dealers, Inc. ("NASD") relating to trading in the
     PORTAL Market and for the Securities to be eligible for clearance and
     settlement through The Depository Trust Company ("DTC");

          (i)  not to, and to cause its affiliates not to, sell, offer for sale
     or solicit offers to buy or otherwise negotiate in respect of any security
     (as such term is defined in the
<PAGE>

                                                                              17

     Securities Act) which could be integrated with the sale of the Securities
     in a manner which would require registration of the Securities under the
     Securities Act;

          (j)  except following the effectiveness of the Exchange Offer
     Registration Statement or the Shelf Registration Statement, as the case may
     be, not to, and to cause its affiliates not to, and not to authorize or
     knowingly permit any person acting on their behalf to, solicit any offer to
     buy or offer to sell the Securities by means of any form of general
     solicitation or general advertising within the meaning of Regulation D or
     in any manner involving a public offering within the meaning of Section
     4(2) of the Securities Act; and not to offer, sell, contract to sell or
     otherwise dispose of, directly or indirectly, any securities under
     circumstances where such offer, sale, contract or disposition would cause
     the exemption afforded by Section 4(2) of the Securities Act to cease to be
     applicable to the offering and sale of the Securities as contemplated by
     this Agreement and the Offering Memorandum;

          (k)  for a period of 180 days from the date of the Offering
     Memorandum, not to offer for sale, sell, contract to sell or otherwise
     dispose of, directly or indirectly, or file a registration statement for,
     or announce any offer, sale, contract for sale of or other disposition of
     any debt securities issued or guaranteed by the Company or any of its
     subsidiaries (other than (i) the Securities or the Exchange Securities (ii)
     notes issued by the Company pursuant to the Lucent Note Purchase Agreement
     (iii) debt securities issued or guaranteed by the Company or any of its
     subsidiaries pursuant to any Vendor Credit Arrangement; provided that any
     such Vendor Credit Arrangement contains terms prohibiting the remarketing
     of all debt securities issued or guaranteed thereunder for a period of not
     less than 180 days from the date of the Offering Memorandum and (iv) any
     debt securities issued by the Company or any of its Subsidiaries to the
     U.S. Government in connection with the acquisition of any License from the
     FCC or any debt securities assumed by the Company or any of its
     subsidiaries in connection with the acquisition of any License or any
     entity engaged in a Permitted Business).

          (l)  during the period from the Closing Date until two years after the
     Closing Date, without the prior written consent of the Initial Purchasers,
     not to, and not permit any of its affiliates (as defined in Rule 144 under
     the Securities Act) to, resell any of the Securities that have been
     reacquired by them, except for Securities purchased by the Company or any
     of its affiliates and resold in a transaction registered under the
     Securities Act;

          (m)  not to, for two years following the date on which the Securities
     are issued, be or become, or be or become owned by, an open-end investment
     company, unit investment trust or face-amount certificate company that is
     or is required to be registered under Section 8 of the Investment Company
     Act, and to not be or become, or be or become owned by, a closed-end
     investment company required to be registered, but not registered
     thereunder;

          (n)  in connection with the offering of the Securities, until CSI on
     behalf of the Initial Purchasers shall have notified the Company of the
     completion of the resale of the Securities, not to, and to cause its
     affiliated purchasers (as defined in Regulation M
<PAGE>

                                                                              18

     under the Exchange Act) not to, either alone or with one or more other
     persons, bid for or purchase, for any account in which it or any of its
     affiliated purchasers has a beneficial interest, any Securities, or attempt
     to induce any person to purchase any Securities; and not to, and to cause
     its affiliated purchasers not to, make bids or purchase for the purpose of
     creating actual, or apparent, active trading in or of raising the price of
     the Securities;

          (o)  in connection with the offering of the Securities, to make its
     officers, employees, independent accountants and legal counsel reasonably
     available upon request by the Initial Purchasers;

          (p)  to furnish to each of the Initial Purchasers on the Closing Date
     a copy of the independent accountants' report included in the Offering
     Memorandum signed by the accountants rendering such report;

          (q)  to do and perform all things required to be done and performed by
     it under this Agreement that are within its control prior to or after the
     Closing Date, and to use commercially reasonable efforts to satisfy all
     conditions precedent on its part to the delivery of the Securities;

          (r)  to not take any action prior to the Closing Date which would
     require the Offering Memorandum to be amended or supplemented pursuant to
     Section 4(d);

          (s)  prior to the Closing Date, not to issue any press release or
     other communication directly or indirectly or hold any press conference
     with respect to the Company, its condition, financial or otherwise, or
     earnings, business affairs or business prospects (except for routine oral
     marketing communications in the ordinary course of business and consistent
     with the past practices of the Company and of which the Initial Purchasers
     are notified), without the prior written consent of the Initial Purchasers,
     unless in the judgment of the Company and its counsel, and after
     notification to the Initial Purchasers, such press release or communication
     is required by law;

          (t)  to apply the net proceeds from the sale of the Securities as set
     forth in the Offering Memorandum under the heading "Use of Proceeds"; and

          (u)  that Sections 4(b) and 4(c) of the Year 2000 Information and
     Readiness Disclosure Act are inapplicable to this Agreement and to waive
     any defenses arising under such act in any action or proceeding relating to
     this Agreement or the transactions contemplated hereby.

          5.   Conditions of Initial Purchasers' Obligations.  The respective
obligations of the several Initial Purchasers hereunder are subject to the
accuracy, on and as of the date hereof and the Closing Date, of the
representations and warranties of the Company and the Subsidiary Guarantor
contained herein, to the accuracy of the statements of the Company and the
Subsidiary Guarantor and their respective officers made in any certificates
delivered pursuant hereto, to the performance by the Company and the Subsidiary
Guarantor of their respective obligations hereunder, and to each of the
following additional terms and conditions:
<PAGE>

                                                                              19

          (a)  The Offering Memorandum (and any amendments or supplements
     thereto) shall have been printed and copies distributed to the Initial
     Purchasers as promptly as practicable on or following the date of this
     Agreement or at such other date and time as to which the Initial Purchasers
     may agree; and no stop order suspending the sale of the Securities in any
     jurisdiction shall have been issued and no proceeding for that purpose
     shall have been commenced or shall be pending or threatened.

          (b)  None of the Initial Purchasers shall have discovered and
     disclosed to the Company on or prior to the Closing Date that the Offering
     Memorandum or any amendment or supplement thereto contains an untrue
     statement of a fact which, in the opinion of counsel for the Initial
     Purchasers, is material or omits to state any fact which, in the opinion of
     such counsel, is material and is required to be stated therein or is
     necessary to make the statements therein not misleading.

          (c)  All corporate proceedings and other legal matters incident to the
     authorization, form and validity of each of the Transaction Documents and
     the Offering Memorandum, and all other legal matters relating to the
     Transaction Documents and the transactions contemplated thereby, shall be
     satisfactory in all material respects to the Initial Purchasers, and the
     Company shall have furnished to the Initial Purchasers all documents and
     information that they or their counsel may reasonably request to enable
     them to pass upon such matters.

          (d)  McDermott, Will & Emery shall have furnished to the Initial
     Purchasers their written opinion, as counsel to the Company, addressed to
     the Initial Purchasers and dated the Closing Date, in form and substance
     reasonably satisfactory to the Initial Purchasers, substantially to the
     effect set forth in Annex B hereto.  Wiley, Rein & Fielding shall have
     furnished to the Initial Purchasers their written opinion, as special
     communications counsel to the Company, addressed to the Initial Purchasers
     and dated as of the Closing Date, in form and substance reasonably
     satisfactory to the Initial Purchasers, substantially to the effect set
     forth in Annex C hereto.

          (e)  The Initial Purchasers shall have received from Cravath, Swaine &
     Moore, counsel for the Initial Purchasers, such opinion or opinions, dated
     the Closing Date, with respect to such matters as the Initial Purchasers
     may reasonably require, and the Company shall have furnished to such
     counsel such documents and information as they request for the purpose of
     enabling them to pass upon such matters.

          (f)  The Company shall have furnished to the Initial Purchasers a
     letter (the "Initial Letter") of PricewaterhouseCoopers LLP, addressed to
     the Initial Purchasers and dated the date hereof, in form and substance
     satisfactory to the Initial Purchasers, substantially to the effect set
     forth in Annex D hereto.

          (g)  The Company shall have furnished to the Initial Purchasers a
     letter (the "Bring-Down Letter") of PricewaterhouseCoopers LLP, addressed
     to the Initial Purchasers and dated the Closing Date, (i) confirming that
     they are independent public accountants with respect to the Company and its
     subsidiaries within the meaning of
<PAGE>

                                                                              20

     Rule 101 of the Code of Professional Conduct of the AICPA and its
     interpretations and rulings thereunder, (ii) stating, as of the date of the
     Bring-Down Letter (or, with respect to matters involving changes or
     developments since the respective dates as of which specified financial
     information is given in the Offering Memorandum, as of a date not more than
     three business days prior to the date of the Bring-Down Letter), that the
     conclusions and findings of such accountants with respect to the financial
     information and other matters covered by the Initial Letter are accurate
     and (iii) confirming in all material respects the conclusions and findings
     set forth in the Initial Letter.

          (h)  The Company shall have furnished to the Initial Purchasers a
     certificate, dated the Closing Date, of its Chief Executive Officer and its
     Chief Financial Officer and the Subsidiary Guarantor shall have furnished
     to the Initial Purchasers a certificate, dated the Closing Date, of its
     Chief Executive Officer and its Treasurer, in each case stating that (i)
     such officers have carefully examined the Offering Memorandum, (ii) in
     their opinion, the Offering Memorandum, as of its date, did not include any
     untrue statement of a material fact and did not omit to state a material
     fact required to be stated therein or necessary in order to make the
     statements therein, in the light of the circumstances under which they were
     made, not misleading, and since the date of the Offering Memorandum, no
     event has occurred which should have been set forth in a supplement or
     amendment to the Offering Memorandum so that the Offering Memorandum (as so
     amended or supplemented) would not include any untrue statement of a
     material fact and would not omit to state a material fact required to be
     stated therein or necessary in order to make the statements therein, in the
     light of the circumstances under which they were made, not misleading,
     (iii) as of the Closing Date, the representations and warranties of the
     Company or the Subsidiary Guarantor, as applicable, in this Agreement are
     true and correct in all material respects, the Company or the Subsidiary
     Guarantor, as applicable, has complied with all agreements and satisfied
     all conditions on its part to be performed or satisfied hereunder on or
     prior to the Closing Date and (iv) with respect to officers of the Company
     only, subsequent to the date of the most recent financial statements
     contained in the Offering Memorandum, there has been no material adverse
     change in the financial position or results of operation of the Company or
     any of its subsidiaries, or any material change, or any material
     development including a prospective material change, in or affecting the
     condition (financial or otherwise), results of operations, business or
     prospects of the Company and its subsidiaries taken as a whole, which is
     not disclosed in the Offering Memorandum.

          (i)  The Initial Purchasers shall have received a counterpart of the
     Registration Rights Agreement which shall have been executed and delivered
     by a duly authorized officer of the Company and the Subsidiary Guarantor.

          (j)  The Indenture shall have been duly executed and delivered by the
     Company, the Subsidiary Guarantor and the Trustee, and the Securities shall
     have been duly executed and delivered by the Company and duly authenticated
     by the Trustee.

          (k)  The Securities shall have been approved by the NASD for trading
     in the PORTAL Market.
<PAGE>

                                                                              21


     (l)  If any event shall have occurred that requires the Company under
Section 4(d) to prepare an amendment or supplement to the Offering Memorandum,
such amendment or supplement shall have been prepared, the Initial Purchasers
shall have been given a reasonable opportunity to comment thereon, and copies
thereof shall have been delivered to the Initial Purchasers reasonably in
advance of the Closing Date.

     (m)  There shall not have occurred any invalidation of Rule 144A under
the Securities Act by any court or any withdrawal or proposed withdrawal of any
rule or regulation under the Securities Act or the Exchange Act by the
Commission or any amendment or proposed amendment thereof by the Commission
which in the reasonable judgment of the Initial Purchasers would materially
impair the ability of the Initial Purchasers to purchase, hold or effect resales
of the Securities as contemplated hereby.

     (n)  Subsequent to the execution and delivery of this Agreement or, if
earlier, the dates as of which information is given in the Offering Memorandum
(exclusive of any amendment or supplement thereto), there shall not have been
any change in the capital stock or long-term debt (other than, with respect to
long-term debt, the issuance of additional junior subordinated notes pursuant to
the Lucent Note Purchase Agreement) or any change, or any development involving
a prospective change, in or affecting the condition (financial or otherwise),
results of operations, business or prospects of the Company and its subsidiaries
taken as a whole, the effect of which, in any such case described above, is, in
the reasonable judgment of the Initial Purchasers, so material and adverse as to
make it impracticable or inadvisable to proceed with the sale or delivery of the
Securities on the terms and in the manner contemplated by this Agreement and the
Offering Memorandum (exclusive of any amendment or supplement thereto).

     (o)  No action shall have been taken and no statute, rule, regulation
or order shall have been enacted, adopted or issued by any governmental agency
or body which would, as of the Closing Date, prevent the issuance or sale of the
Securities in any jurisdiction in which issuance or sale of the Securities is
contemplated by the Offering Memorandum; and no injunction, restraining order or
order of any other nature by any federal or state court of competent
jurisdiction shall have been issued as of the Closing Date which would prevent
the issuance or sale of the Securities in any jurisdiction in which the issuance
or sale of the Securities is contemplated by the Offering Memorandum.

     (p)  Subsequent to the execution and delivery of this Agreement (i) no
downgrading shall have occurred in the rating accorded the Securities or any of
the Company's other debt securities or preferred stock by any "nationally
recognized statistical rating organization", as such term is defined by the
Commission for purposes of Rule 436(g)(2) of the rules and regulations of the
Commission under the Securities Act, and (ii) no such organization shall have
publicly announced that it has under surveillance or review (other than an
announcement with positive implications of a possible upgrading), its rating of
the Securities or any of the Company's other debt securities or preferred stock.

     (q)  Subsequent to the execution and delivery of this Agreement there
shall not have occurred any of the following: (i) trading in securities
generally on the New York
<PAGE>

                                                                              22

     Stock Exchange, the American Stock Exchange or the over-the-counter market
     shall have been suspended or limited, or minimum prices shall have been
     established on any such exchange or market by the Commission, by any such
     exchange or by any other regulatory body or governmental authority having
     jurisdiction, or trading in any securities of the Company on any exchange
     or in the over-the-counter market shall have been suspended, (ii) any
     moratorium on commercial banking activities shall have been declared by
     federal or New York state authorities, (iii) an outbreak or escalation of
     hostilities or a declaration by the United States of a national emergency
     or war or (iv) a material adverse change in general economic, political or
     financial conditions (or the effect of international conditions on the
     financial markets in the United States shall be such) the effect of which,
     in the case of this clause (iv), is, in the judgment of the Initial
     Purchasers, so material and adverse as to make it impracticable or
     inadvisable to proceed with the sale or the delivery of the Securities on
     the terms and in the manner contemplated by this Agreement and in the
     Offering Memorandum (exclusive of any amendment or supplement thereto).

          All opinions, letters, evidence and certificates mentioned above or
elsewhere in this Agreement shall be deemed to be in compliance with the
provisions hereof only if they are in form and substance reasonably satisfactory
to counsel for the Initial Purchasers.

          6.  Termination.  The obligations of the Initial Purchasers hereunder
may be terminated by the Initial Purchasers, in their absolute discretion, by
notice given to and received by the Company prior to delivery of and payment for
the Securities if, prior to that time, any of the events described in Section
5(m), (n), (o), (p) or (q) shall have occurred and be continuing.

          7.  Defaulting Initial Purchasers.  (a)  If, on the Closing Date, any
Initial Purchaser defaults in the performance of its obligations under this
Agreement, the non-defaulting Initial Purchasers may make arrangements for the
purchase of the Securities which such defaulting Initial Purchaser agreed but
failed to purchase by other persons satisfactory to the Company and the non-
defaulting Initial Purchasers, but if no such arrangements are made within 36
hours after such default, this Agreement shall terminate without liability on
the part of the non-defaulting Initial Purchasers or the Company, except that
the Company and the Subsidiary Guarantor will continue to be liable for the
payment of expenses to the extent set forth in Sections 8 and 12 and except that
the provisions of Sections 9 and 10 shall not terminate and shall remain in
effect.  As used in this Agreement, the term "Initial Purchasers" includes, for
all purposes of this Agreement unless the context otherwise requires, any party
not listed in Schedule 1 hereto that, pursuant to this Section 7, purchases
Securities which a defaulting Initial Purchaser agreed but failed to purchase.

          (b)  Nothing contained herein shall relieve a defaulting Initial
Purchaser of any liability it may have to the Company or any non-defaulting
Initial Purchaser for damages caused by its default.  If other persons are
obligated or agree to purchase the Securities of a defaulting Initial Purchaser,
either the non-defaulting Initial Purchasers or the Company may postpone the
Closing Date for up to seven full business days in order to effect any changes
that in the opinion of counsel for the Company or counsel for the Initial
Purchasers may be necessary in the Offering Memorandum or in any other document
or arrangement, and the Company agrees to
<PAGE>

                                                                              23

promptly prepare any amendment or supplement to the Offering Memorandum that
effects any such changes.

          8.  Reimbursement of Initial Purchasers' Expenses.  If (a) this
Agreement shall have been terminated pursuant to Section 6 or 7, (b) the Company
shall fail to tender the Securities for delivery to the Initial Purchasers for
any reason permitted under this Agreement or (c) the Initial Purchasers shall
decline to purchase the Securities for any reason permitted under this
Agreement, the Company and the Subsidiary Guarantor shall reimburse the Initial
Purchasers for such out-of-pocket expenses (including reasonable fees and
disbursements of counsel) as shall have been reasonably incurred by the Initial
Purchasers in connection with this Agreement and the proposed purchase and
resale of the Securities.  If this Agreement is terminated pursuant to Section 7
by reason of the default of one or more of the Initial Purchasers, the Company
and the Subsidiary Guarantor shall not be obligated to reimburse any defaulting
Initial Purchaser on account of such expenses.

          9.  Indemnification.  (a)  The Company and the Subsidiary Guarantor
shall jointly and severally indemnify and hold harmless each Initial Purchaser,
its affiliates, their respective officers, directors, employees, representatives
and agents, and each person, if any, who controls any Initial Purchaser within
the meaning of the Securities Act or the Exchange Act (collectively referred to
for purposes of this Section 9(a) and Section 10 as an Initial Purchaser), from
and against any loss, claim, damage or liability, joint or several, or any
action in respect thereof (including, without limitation, any loss, claim,
damage, liability or action relating to purchases and sales of the Securities),
to which that Initial Purchaser may become subject, whether commenced or
threatened, under the Securities Act, the Exchange Act, any other federal or
state statutory law or regulation, at common law or otherwise, insofar as such
loss, claim, damage, liability or action arises out of, or is based upon, (i)
any untrue statement or alleged untrue statement of a material fact contained in
the Preliminary Offering Memorandum or the Offering Memorandum or in any
amendment or supplement thereto or in any information provided by the Company
pursuant to Section 4(e) or (ii) the omission or alleged omission to state
therein a material fact required to be stated therein or necessary in order to
make the statements therein, in the light of the circumstances under which they
were made, not misleading, and shall reimburse each Initial Purchaser promptly
upon demand for any legal or other expenses reasonably incurred by that Initial
Purchaser in connection with investigating or defending or preparing to defend
against or appearing as a third party witness in connection with any such loss,
claim, damage, liability or action as such expenses are incurred; provided,
however, that the Company and the Subsidiary Guarantor shall not be liable in
any such case to the extent that any such loss, claim, damage, liability or
action arises out of, or is based upon, an untrue statement or alleged untrue
statement in or omission or alleged omission from any of such documents in
reliance upon and in conformity with any Initial Purchasers' Information; and
provided, further, that with respect to any such untrue statement in or omission
from the Preliminary Offering Memorandum, the indemnity agreement contained in
this Section 9(a) shall not inure to the benefit of any such Initial Purchaser
to the extent that the sale to the person asserting any such loss, claim,
damage, liability or action was an initial resale by such Initial Purchaser and
any such loss, claim, damage, liability or action of or with respect to such
Initial Purchaser results from the fact that both (A) to the extent required by
applicable law, a copy of the Offering Memorandum was not sent or given to such
person at or prior to the written confirmation of the sale of such Securities to
such person and (B) the untrue statement in or
<PAGE>

                                                                              24

omission from the Preliminary Offering Memorandum was corrected in the Offering
Memorandum unless, in either case, such failure to deliver the Offering
Memorandum was a result of non-compliance by the Company with Section 4(b).

          (b)  Each Initial Purchaser, severally and not jointly, shall
indemnify and hold harmless the Company, its affiliates, their respective
officers, directors, employees, representatives and agents, and each person, if
any, who controls the Company within the meaning of the Securities Act or the
Exchange Act (collectively referred to for purposes of this Section 9(b) and
Section 10 as the Company), from and against any loss, claim, damage or
liability, joint or several, or any action in respect thereof, to which the
Company may become subject, whether commenced or threatened, under the
Securities Act, the Exchange Act, any other federal or state statutory law or
regulation, at common law or otherwise, insofar as such loss, claim, damage,
liability or action arises out of, or is based upon, (i) any untrue statement or
alleged untrue statement of a material fact contained in the Preliminary
Offering Memorandum or the Offering Memorandum or in any amendment or supplement
thereto or (ii) the omission or alleged omission to state therein a material
fact required to be stated therein or necessary in order to make the statements
therein, in the light of the circumstances under which they were made, not
misleading, but in each case only to the extent that the untrue statement or
alleged untrue statement or omission or alleged omission was made in reliance
upon and in conformity with any Initial Purchasers' Information, and shall
reimburse the Company promptly upon demand for any legal or other expenses
reasonably incurred by the Company in connection with investigating or defending
or preparing to defend against or appearing as a third party witness in
connection with any such loss, claim, damage, liability or action as such
expenses are incurred.

          (c)  Promptly after receipt by an indemnified party under this Section
9 of notice of any claim or the commencement of any action, the indemnified
party shall, if a claim in respect thereof is to be made against the
indemnifying party pursuant to Section 9(a) or 9(b), notify the indemnifying
party in writing of the claim or the commencement of that action; provided,
however, that the failure to notify the indemnifying party shall not relieve it
from any liability which it may have under this Section 9 except to the extent
that it has been prejudiced (through the forfeiture of substantive rights or
defenses) by such failure; and, provided, further, that the failure to notify
the indemnifying party shall not relieve it from any liability which it may have
to an indemnified party otherwise than under this Section 9.  If any such claim
or action shall be brought against an indemnified party, and it shall notify the
indemnifying party thereof, the indemnifying party shall be entitled to
participate therein and, to the extent that it wishes, jointly with any other
similarly notified indemnifying party, to assume the defense thereof with
counsel reasonably satisfactory to the indemnified party.  After notice from the
indemnifying party to the indemnified party of its election to assume the
defense of such claim or action, the indemnifying party shall not be liable to
the indemnified party under this Section 9 for any legal or other expenses
subsequently incurred by the indemnified party in connection with the defense
thereof other than reasonable costs of investigation; provided, however, that an
indemnified party shall have the right to employ its own counsel in any such
action, but the fees, expenses and other charges of such counsel for the
indemnified party will be at the expense of such indemnified party unless (i)
the employment of counsel by the indemnified party has been authorized in
writing by the indemnifying party, (ii) the indemnified party has reasonably
concluded (based upon advice of counsel to the indemnified party) that there may
be legal defenses available to it or other indemnified parties that are
different from or in addition to those
<PAGE>

                                                                              25

available to the indemnifying party, (iii) a conflict or potential conflict
exists (based upon advice of counsel to the indemnified party) between the
indemnified party and the indemnifying party (in which case the indemnifying
party will not have the right to direct the defense of such action on behalf of
the indemnified party) or (iv) the indemnifying party has not in fact employed
counsel reasonably satisfactory to the indemnified party to assume the defense
of such action within a reasonable time after receiving notice of the
commencement of the action, in each of which cases the reasonable fees,
disbursements and other charges of counsel will be at the expense of the
indemnifying party or parties. It is understood that the indemnifying party or
parties shall not, in connection with any proceeding or related proceedings in
the same jurisdiction, be liable for the reasonable fees, disbursements and
other charges of more than one separate firm of attorneys (in addition to any
local counsel) at any one time for all such indemnified party or parties. Each
indemnified party, as a condition of the indemnity agreements contained in
Sections 9(a) and 9(b), shall use all reasonable efforts to cooperate with the
indemnifying party in the defense of any such action or claim. No indemnifying
party shall be liable for any settlement of any such action effected without its
written consent (which consent shall not be unreasonably withheld), but if
settled with its written consent or if there be a final judgment for the
plaintiff in any such action, the indemnifying party agrees to indemnify and
hold harmless any indemnified party from and against any loss or liability by
reason of such settlement or judgment. No indemnifying party shall, without the
prior written consent of the indemnified party (which consent shall not be
unreasonably withheld), effect any settlement of any pending or threatened
proceeding in respect of which any indemnified party is or could have been a
party and indemnity could have been sought hereunder by such indemnified party
unless such settlement includes an unconditional release of such indemnified
party from all liability on claims that are the subject matter of such
proceeding.

          The obligations of the Company, the Subsidiary Guarantor and the
Initial Purchasers in this Section 9 and in Section 10 are in addition to any
other liability that the Company, the Subsidiary Guarantor or the Initial
Purchasers, as the case may be, may otherwise have, including in respect of any
breaches of representations, warranties and agreements made herein by any such
party.

          10.  Contribution.  If the indemnification provided for in Section 9
is unavailable or insufficient to hold harmless an indemnified party under
Section 9(a) or 9(b), then each indemnifying party shall, in lieu of
indemnifying such indemnified party, contribute to the amount paid or payable by
such indemnified party as a result of such loss, claim, damage or liability, or
action in respect thereof, (i) in such proportion as shall be appropriate to
reflect the relative benefits received by the Company and the Subsidiary
Guarantor on the one hand and the Initial Purchasers on the other from the
offering of the Securities or (ii) if the allocation provided by clause (i)
above is not permitted by applicable law, in such proportion as is appropriate
to reflect not only the relative benefits referred to in clause (i) above but
also the relative fault of the Company and the Subsidiary Guarantor on the one
hand and the Initial Purchasers on the other with respect to the statements or
omissions that resulted in such loss, claim, damage or liability, or action in
respect thereof, as well as any other relevant equitable considerations.  The
relative benefits received by the Company and the Subsidiary Guarantor on the
one hand and the Initial Purchasers on the other with respect to such offering
shall be deemed to be in the same proportion as the total net proceeds from the
offering of the Securities purchased under this Agreement (before deducting
expenses) received by or on behalf of the Company and the
<PAGE>

                                                                              26

Subsidiary Guarantor, on the one hand, and the total discounts and commissions
received by the Initial Purchasers with respect to the Securities purchased
under this Agreement, on the other, bear to the total gross proceeds from the
sale of the Securities under this Agreement. The relative fault shall be
determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to state
a material fact relates to the Company or information supplied by the Company
and the Subsidiary Guarantor on the one hand or to any Initial Purchasers'
Information on the other, the intent of the parties and their relative
knowledge, access to information and opportunity to correct or prevent such
untrue statement or omission. The Company, the Subsidiary Guarantor and the
Initial Purchasers agree that it would not be just and equitable if
contributions pursuant to this Section 10 were to be determined by pro rata
allocation (even if the Initial Purchasers were treated as one entity for such
purpose) or by any other method of allocation that does not take into account
the equitable considerations referred to herein. The amount paid or payable by
an indemnified party as a result of the loss, claim, damage or liability, or
action in respect thereof, referred to above in this Section 10 shall be deemed
to include, for purposes of this Section 10, any legal or other expenses
reasonably incurred by such indemnified party in connection with investigating
or defending or preparing to defend any such action or claim. Notwithstanding
the provisions of this Section 10, no Initial Purchaser shall be required to
contribute any amount in excess of the amount by which the total discounts and
commissions received by such Initial Purchaser with respect to the Securities
purchased by it under this Agreement exceeds the amount of any damages which
such Initial Purchaser has otherwise paid or become liable to pay by reason of
any untrue or alleged untrue statement or omission or alleged omission. No
person guilty of fraudulent misrepresentation (within the meaning of Section
11(f) of the Securities Act) shall be entitled to contribution from any person
who was not guilty of such fraudulent misrepresentation. The Initial Purchasers'
obligations to contribute as provided in this Section 10 are several in
proportion to their respective purchase obligations and not joint.

          11.  Persons Entitled to Benefit of Agreement.  This Agreement shall
inure to the benefit of and be binding upon the Initial Purchasers, the Company,
the Subsidiary Guarantor and their respective successors.  This Agreement and
the terms and provisions hereof are for the sole benefit of only those persons,
except as provided in Sections 9 and 10 with respect to affiliates, officers,
directors, employees, representatives, agents and controlling persons of the
Company, the Subsidiary Guarantor and the Initial Purchasers and in Section 4(e)
with respect to holders and prospective purchasers of the Securities.  Nothing
in this Agreement is intended or shall be construed to give any person, other
than the persons referred to in this Section 11, any legal or equitable right,
remedy or claim under or in respect of this Agreement or any provision contained
herein.

          12.  Expenses.  The Company and the Subsidiary Guarantor agree with
the Initial Purchasers to pay (a) the costs incident to the authorization,
issuance, sale, preparation and delivery of the Securities and any taxes payable
in that connection; (b) the costs incident to the preparation, printing and
distribution of the Preliminary Offering Memorandum, the Offering Memorandum and
any amendments or supplements thereto; (c) the costs of reproducing and
distributing each of the Transaction Documents; (d) the costs incident to the
preparation, printing and delivery of the certificates evidencing the
Securities, including stamp duties and transfer taxes, if any, payable upon
issuance of the Securities; (e) the fees and expenses of the Company's counsel
and independent accountants; (f) the fees and expenses of qualifying the
<PAGE>

                                                                              27

Securities under the securities laws of the several jurisdictions as provided in
Section 4(h) and of preparing, printing and distributing Blue Sky Memoranda
(including related fees and expenses of counsel for the Initial Purchasers); (g)
any fees charged by rating agencies for rating the Securities; (h) the fees and
expenses of the Trustee and any paying agent (including related fees and
expenses of any counsel to such parties); (i) all expenses and application fees
incurred in connection with the application for the inclusion of the Securities
on the PORTAL Market and the approval of the Securities for book-entry transfer
by DTC; and (j) all other costs and expenses incident to the performance of the
obligations of the Company under this Agreement which are not otherwise
specifically provided for in this Section 12; provided, however, that except as
provided in this Section 12 and Section 8, the Initial Purchasers shall pay
their own costs and expenses.

          13.  Survival.  The respective indemnities, rights of contribution,
representations, warranties and agreements of the Company, the Subsidiary
Guarantor and the Initial Purchasers contained in this Agreement or made by or
on behalf of the Company, the Subsidiary Guarantor or the Initial Purchasers
pursuant to this Agreement or any certificate delivered pursuant hereto shall
survive the delivery of and payment for the Securities and shall remain in full
force and effect, regardless of any termination or cancelation of this Agreement
or any investigation made by or on behalf of any of them or any of their
respective affiliates, officers, directors, employees, representatives, agents
or controlling persons.

          14.  Notices, etc.  All statements, requests, notices and agreements
hereunder shall be in writing, and:

          (a)  if to the Initial Purchasers, shall be delivered or sent by mail
     or telecopy transmission to Chase Securities Inc., 270 Park Avenue, New
     York, New York 10017, Attention: R. David McDonough (telecopier no.: (212)
     270-0994); or

          (b)  if to the Company or the Subsidiary Guarantor, shall be delivered
     or sent by mail or telecopy transmission to the address of the Company set
     forth in the Offering Memorandum, Attention: Thomas H. Sullivan (telecopier
     no.: (703) 236-1376);

provided that any notice to an Initial Purchaser pursuant to Section 9(c) shall
also be delivered or sent by mail to such Initial Purchaser at its address set
forth on the signature page hereof.  Any such statements, requests, notices or
agreements shall take effect at the time of receipt thereof. The Company shall
be entitled to act and rely upon any request, consent, notice or agreement given
or made on behalf of the Initial Purchasers by CSI.

          15.  Definition of Terms.  For purposes of this Agreement, (a) the
term "business day" means any day on which the New York Stock Exchange, Inc. is
open for trading, (b) the term "subsidiary" has the meaning set forth in Rule
405 under the Securities Act and (c) except where otherwise expressly provided,
the term "affiliate" has the meaning set forth in Rule 405 under the Securities
Act.

          16.  Initial Purchasers' Information.  The parties hereto acknowledge
and agree that, for all purposes of this Agreement, the Initial Purchasers'
Information consists solely of the statements concerning the Initial Purchasers
contained in the third, fifth (but only the third
<PAGE>

                                                                              28

sentence thereof), eighth, ninth (but only the third and fourth sentences
thereof) and tenth paragraphs under the heading "Plan of Distribution" in the
Preliminary Offering Memorandum and the Offering Memorandum.

          17.  GOVERNING LAW.  THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED
IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

          18.  Counterparts.  This Agreement may be executed in one or more
counterparts (which may include counterparts delivered by telecopier) and, if
executed in more than one counterpart, the executed counterparts shall each be
deemed to be an original, but all such counterparts shall together constitute
one and the same instrument.

          19.  Amendments.  No amendment or waiver of any provision of this
Agreement, nor any consent or approval to any departure therefrom, shall in any
event be effective unless the same shall be in writing and signed by the parties
hereto.

          20.  Headings.  The headings herein are inserted for convenience of
reference only and are not intended to be part of, or to affect the meaning or
interpretation of, this Agreement.
<PAGE>

          If the foregoing is in accordance with your understanding of our
agreement, kindly sign and return to us a counterpart hereof, whereupon this
instrument will become a binding agreement between the Company, the Subsidiary
Guarantor and the several Initial Purchasers in accordance with its terms.


                                   Very truly yours,

                                   TELECORP PCS, INC.,


                                   by     /s/ Thomas H. Sullivan
                                      -------------------------------------
                                      Name:  Thomas H. Sullivan
                                      Title: Executive Vice President



                                   TELECORP COMMUNICATIONS, INC.,


                                   by     /s/ Thomas H. Sullivan
                                      -------------------------------------
                                      Name:  Thomas H. Sullivan
                                      Title: President


Accepted:

CHASE SECURITIES INC.,


 by   /s/ R. David McDonough
    --------------------------
       Authorized Signatory


Address for notices pursuant to Section 9(c):
1 Chase Plaza, 25th floor
New York, New York 10081
Attention:  Legal Department
<PAGE>

BT ALEX. BROWN INCORPORATED,


 by    /s/ Sanjai Bijawat
    --------------------------
       Authorized Signatory


Address for notices pursuant to Section 9(c):

     130 Liberty Street
     30th Floor
     New York, New York 10006


LEHMAN BROTHERS INC.,


 by    /s/ Paul Zoidis
   ---------------------------
       Authorized Signatory


Address for notices pursuant to Section 9(c):

     3 World Financial Center
     10th Floor
     New York, New York 10285

<PAGE>

                                                                      SCHEDULE 1


                                                  Principal
                                                  Amount
     Initial Purchasers                           of Securities
     ------------------                           -------------
     Chase Securities Inc.                        $ 287,500,000
     BT Alex. Brown Incorporated                  $ 143,750,000
     Lehman Brothers Inc.                         $ 143,750,000
                                                  -------------
          Total                                   $ 575,000,000
                                                  =============

<PAGE>

                                                                       EXHIBIT A


                         [Subsidiaries of the Company]
<PAGE>

                                                                       EXHIBIT B

                             Network Area/Licenses

Part A:

                 Licenses contributed by AT&T Wireless PCS Inc.
                 pursuant to the Securities Purchase Agreement


- ----------------------------------------------------------------------
     Market Number       Frequency Block     License Description
- ----------------------------------------------------------------------
       M008                    A             Boston-Providence/1/,/2/
- ----------------------------------------------------------------------
       M019                    A             St. Louis/1/,/2/
- ----------------------------------------------------------------------
       M026                    A             Louisville-Lexington-
                                             Evansville/1/,/2/
- ----------------------------------------------------------------------
       M040                    A             Little Rock/2/
- ----------------------------------------------------------------------
       M028                    B             Memphis-Jackson/1/,/2/
- ----------------------------------------------------------------------

Part B:

                       Licenses held by TeleCorp Holding

- -----------------------------------------------------------------------
     Market Number       Frequency Block     License Description
- -----------------------------------------------------------------------
       B034                    F             Beaumont-Port Arthur, TX
- -----------------------------------------------------------------------
       B257                    F             Little Rock, AR
- -----------------------------------------------------------------------
       B290                    F             Memphis, TN
- -----------------------------------------------------------------------
       B320                    F             New Orleans, LA
- -----------------------------------------------------------------------

/1/  Contribution includes only a portion of the geographic area in the
     referenced market as detailed in Schedule 2.1 to the Securities Purchase
     Agreement.

/2/  Contribution includes only a portion of the spectrum in the referenced
     frequency block.
<PAGE>

Part C:

                Licenses purchased from AT&T Wireless PCS Inc.
   pursuant to the License Purchase Agreement dated as of January 23, 1998,
                between the Company and AT&T Wireless PCS Inc.

- ----------------------------------------------------------------------
     Market Number       Frequency Block          License Description
- ----------------------------------------------------------------------
       B032                     D                 Baton Rouge, LA
- ----------------------------------------------------------------------
       B236                     D                 Lafayette-New Iberia
- ----------------------------------------------------------------------
       B320                     D                 New Orleans, LA
- ----------------------------------------------------------------------

Part D:

                  Licenses acquired from Digital PCS, L.L.C.

- ---------------------------------------------------------------------------
     Market Number       Frequency Block          License Description
- ---------------------------------------------------------------------------
       B032                    F                  Baton Rouge, LA
- ---------------------------------------------------------------------------
       B180                    F                  Hammond, LA
- ---------------------------------------------------------------------------
       B195                    F                  Houma-Thibodeaux, LA
- ---------------------------------------------------------------------------
       B236                    F                  Lafayette-New Iberia, LA
- ---------------------------------------------------------------------------

Part E:

                 License to be acquired from AT&T Corporation

- ------------------------------------------------------------------------------
     Market Number    Frequency Block     License Description
- ------------------------------------------------------------------------------
       M025                A             Puerto Rico - U.S. Virgin Islands/2/
- ------------------------------------------------------------------------------
<PAGE>

Part F:

               Licenses to be acquired from Wireless 2000, Inc.
- -----------------------------------------------------------------
     Market Number     Frequency Block       License Description
- -----------------------------------------------------------------
       B009                 C                Alexandria, LA/2/
- -----------------------------------------------------------------
       B238                 C                Lake Charles, LA/2/
- -----------------------------------------------------------------
       B304                 C                Monroe, LA/2/
- -----------------------------------------------------------------

<PAGE>

                                                                   EXHIBIT 10.19
                                                                   -------------
                                                                  EXECUTION COPY



                               TELECORP PCS, INC

                                 $575,000,000

               11 5/8 Senior Subordinated Discount Notes due 2009


                  EXCHANGE AND REGISTRATION RIGHTS AGREEMENT



                                                            April 23, 1999



CHASE SECURITIES INC.
BT ALEX. BROWN INCORPORATED
LEHMAN BROTHERS INC.
c/o Chase Securities Inc.
270 Park Avenue, 4th floor
New York, New York 10017

Ladies and Gentlemen:

          TeleCorp PCS, Inc., a Delaware corporation (the "Company"), proposes
to issue and sell to Chase Securities Inc. ("CSI"), BT Alex. Brown Incorporated
and Lehman Brothers Inc. (together with CSI, the "Initial Purchasers"), upon the
terms and subject to the conditions set forth in a purchase agreement dated
April 20, 1999 (the "Purchase Agreement"), $575,000,000 aggregate principal
amount at maturity of its 11 5/8 Senior Subordinated Discount Notes due 2009
(the "Securities") to be guaranteed on a senior subordinated basis by TeleCorp
Communications, Inc., a subsidiary of the Company (the "Subsidiary Guarantor").
Capitalized terms used but not defined herein shall have the meanings given to
such terms in the Purchase Agreement.

          As an inducement to the Initial Purchasers to enter into the Purchase
Agreement and in satisfaction of a condition to the obligations of the Initial
Purchasers thereunder, the Company and the Subsidiary Guarantor agree with the
Initial Purchasers, for the benefit of the holders (including and the Market
Maker (as defined below)) of the Securities, the Exchange Securities (as defined
herein) and the Private Exchange Securities (as defined herein) (collectively,
the "Holders"), as follows:

          1.  Registered Exchange Offer.  The Company and the Subsidiary
Guarantor shall (i) prepare and, not later than 60 days following the date of
original issuance of the Securities (the "Issue Date"), file with the Commission
a registration statement (the "Exchange Offer Registration Statement") on an
appropriate form under the Securities Act with respect to a proposed offer to
the Holders of the Securities (the "Registered Exchange Offer") who are not
prohibited by applicable law or interpretations thereof by the Commission's
staff from
<PAGE>

                                                                               2



participating in the Registered Exchange Offer to issue and deliver
to such Holders, in exchange for the Securities, a like aggregate principal
amount of debt securities of the Company (the "Exchange Securities") that are
identical in all material respects to the Securities, except for the transfer
restrictions and registration rights relating to the Securities, (ii) use their
reasonable best efforts to cause the Exchange Offer Registration Statement to
become effective under the Securities Act no later than 180 days after the Issue
Date and the Registered Exchange Offer to be consummated no later than 210 days
after the Issue Date and (iii) keep the Exchange Offer Registration Statement
effective for not less than 30 days (or longer, if required by applicable law)
after the date on which notice of the Registered Exchange Offer is mailed to the
Holders (such period being called the "Exchange Offer Registration Period").
The Exchange Securities will be issued under the Indenture or an indenture (the
"Exchange Securities Indenture") among the Company, the Subsidiary Guarantor and
the Trustee or such other bank or trust company that is reasonably satisfactory
to the Initial Purchasers, as trustee (the "Exchange Securities Trustee"), such
indenture to be identical in all material respects to the Indenture, except for
the transfer restrictions and registration rights relating to the Securities (as
described above).  All references in this Agreement to "Registration Statement"
and "prospectus" shall, except where the context otherwise requires, include any
Registration Statement (or amendment or supplement thereto) and prospectus (or
amendment thereto), respectively, filed with the Commission pursuant to Section
6 of this Agreement.

          Upon the effectiveness of the Exchange Offer Registration Statement,
the Company shall promptly commence the Registered Exchange Offer, it being the
objective of such Registered Exchange Offer to enable each Holder electing to
exchange Securities for Exchange Securities (assuming that such Holder (a) is
not an affiliate of the Company or an Exchanging Dealer (as defined herein) not
complying with the requirements of the next sentence, (b) is not an Initial
Purchaser holding Securities that have, or that are reasonably likely to have,
the status of an unsold allotment in an initial distribution, (c) acquires the
Exchange Securities in the ordinary course of such Holder's business, (d) has no
arrangements or understandings with any person to participate in the
distribution of the Exchange Securities and (e) is not otherwise prohibited by
applicable law or interpretations thereof by the Commission's staff from
participating in the Registered Exchange Offer) and to trade such Exchange
Securities from and after their receipt without any limitations or restrictions
under the Securities Act and without material restrictions under the securities
laws of the several states of the United States. The Company, the Subsidiary
Guarantor, the Initial Purchasers and each Exchanging Dealer acknowledge that,
pursuant to current interpretations by the Commission's staff of Section 5 of
the Securities Act, (i) each Holder that is a broker-dealer electing to exchange
Securities, acquired for its own account as a result of market-making activities
or other trading activities, for Exchange Securities (an "Exchanging Dealer"),
is required to deliver a prospectus containing substantially the information set
forth in Annex A hereto on the cover, in Annex B hereto in the "Exchange Offer
Procedures" section and the "Purpose of the Exchange Offer" section and in Annex
C hereto in the "Plan of Distribution" section of such prospectus in connection
with a sale of any such Exchange Securities received by such Exchanging Dealer
pursuant to the Registered Exchange Offer and (ii) if an Initial Purchaser
elects to sell Exchange Securities acquired in exchange for Securities
constituting any portion of an unsold allotment, such Initial Purchaser is
required to deliver a prospectus containing the information required by Item 507
and 508 of Regulation S-K under the Securities Act, as applicable, in connection
with such sale.
<PAGE>

                                                                               3

          If, prior to the consummation of the Registered Exchange Offer, any
Holder holds any Securities acquired by it that have, or that are reasonably
likely to be determined to have, the status of an unsold allotment in an initial
distribution, or any Holder is not entitled to participate in the Registered
Exchange Offer, the Company shall, upon the request of any such Holder,
simultaneously with the delivery of the Exchange Securities in the Registered
Exchange Offer, issue and deliver to any such Holder, in exchange for the
Securities held by such Holder (the "Private Exchange"), a like aggregate
principal amount of debt securities of the Company (the "Private Exchange
Securities") that are identical in all material respects to the Exchange
Securities, except for the transfer restrictions relating to such Private
Exchange Securities.  The Private Exchange Securities will be issued under the
same indenture as the Exchange Securities, and the Company shall use
commercially reasonable best efforts to cause the Private Exchange Securities to
bear the same CUSIP number as the Exchange Securities.

          In connection with the Registered Exchange Offer, the Company shall:

          (a)  mail to each Holder a copy of the prospectus forming part of the
     Exchange Offer Registration Statement, together with an appropriate letter
     of transmittal and related documents;

          (b)  keep the Registered Exchange Offer open for not less than 30 days
     (or longer, if required by applicable law) after the date on which notice
     of the Registered Exchange Offer is mailed to the Holders;

          (c)  utilize the services of a depositary (which may be the Trustee or
     an affiliate of the Trustee) for the Registered Exchange Offer with an
     address in the Borough of Manhattan, The City of New York;

          (d)  permit Holders to withdraw tendered Securities at any time prior
     to the close of business, New York City time, on the last business day on
     which the Registered Exchange Offer shall remain open; and

          (e)  otherwise comply in all respects with all laws that are
     applicable to the Registered Exchange Offer.

          As soon as practicable after the close of the Registered Exchange
Offer and any Private Exchange, as the case may be, the Company shall:

          (a)  accept for exchange all Securities validly tendered and not
     withdrawn pursuant to the Registered Exchange Offer and the Private
     Exchange;

          (b)  deliver to the Trustee for cancelation all Securities so accepted
     for exchange; and

          (c)  cause the Trustee or the Exchange Securities Trustee, as the case
     may be, promptly to authenticate and deliver to each Holder, Exchange
     Securities or Private Exchange Securities, as the case may be, equal in
     principal amount to the Securities of such Holder so accepted for exchange.
<PAGE>

                                                                               4

          The Company shall use its reasonable best efforts to keep the Exchange
Offer Registration Statement effective and to amend and supplement the
prospectus contained therein in order to permit such prospectus to be used by
all persons subject to the prospectus delivery requirements of the Securities
Act for such period of time as such persons must comply with such requirements
in order to resell the Exchange Securities; provided that (i) in the case where
such prospectus and any amendment or supplement thereto must be delivered by an
Exchanging Dealer, such period shall be the lesser of 180 days and the date on
which all Exchanging Dealers have sold all Exchange Securities held by them and
(ii) the Company shall make such prospectus and any amendment or supplement
thereto available to any broker-dealer for use in connection with any resale of
any Exchange Securities for a period of not less than 90 days after the
consummation of the Registered Exchange Offer.

          The Indenture or the Exchange Securities Indenture, as the case may
be, shall provide that the Securities, the Exchange Securities and the Private
Exchange Securities shall vote and consent together on all matters as one class
and that none of the Securities, the Exchange Securities or the Private Exchange
Securities will have the right to vote or consent as a separate class on any
matter.

          Interest on each Exchange Security and Private Exchange Security
issued pursuant to the Registered Exchange Offer and in the Private Exchange
will accrue from the last interest payment date on which interest was paid on
the Securities surrendered in exchange therefor or, if no interest has been paid
on the Securities, from the Issue Date.

          Each Holder participating in the Registered Exchange Offer shall be
required to represent to the Company that at the time of the consummation of the
Registered Exchange Offer (i) any Exchange Securities received by such Holder
will be acquired in the ordinary course of business, (ii) such Holder will have
no arrangements or understanding with any person to participate in the
distribution of the Securities or the Exchange Securities within the meaning of
the Securities Act, (iii) such Holder is not an affiliate of the Company or, if
it is such an affiliate, such Holder will comply with the registration and
prospectus delivery requirements of the Securities Act to the extent applicable,
(iv) if such Holder is not a broker-dealer, that it is not engaged in, and does
not intend to engage in, the distribution of the Exchange Securities and (v) if
such Holder is a broker-dealer, that it will receive Exchange Securities for its
own account in exchange for Securities that were acquired as a result of market-
making activities or other trading activities and that it will deliver a
prospectus in connection with any resale of such Exchange Securities.

          Notwithstanding any other provisions hereof, the Company and the
Subsidiary Guarantor will ensure that (i) any Exchange Offer Registration
Statement and any amendment thereto and any prospectus forming part thereof and
any supplement thereto complies in all material respects with the Securities Act
and the rules and regulations of the Commission thereunder, (ii) any Exchange
Offer Registration Statement and any amendment thereto does not, when it becomes
effective, contain an untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary to make the statements
therein not misleading and (iii) any prospectus forming part of any Exchange
Offer Registration Statement, and any supplement to such prospectus, does not,
as of the consummation of the Registered
<PAGE>

                                                                               5

Exchange Offer, include an untrue statement of a material fact or omit to state
a material fact necessary in order to make the statements therein, in the light
of the circumstances under which they were made, not misleading.

          2.  Shelf Registration.  If (i) because of any change in applicable
law or interpretations thereof by the Commission's staff the Company is not
permitted to effect the Registered Exchange Offer as contemplated by Section 1
hereof or (ii) any Securities validly tendered pursuant to the Registered
Exchange Offer are not exchanged for Exchange Securities within 210 days after
the Issue Date or (iii) any Initial Purchaser so requests with respect to
Securities or Private Exchange Securities not eligible to be exchanged for
Exchange Securities in the Registered Exchange Offer and held by it following
the consummation of the Registered Exchange Offer or (iv) any applicable law or
interpretations thereof by the Commission's staff do not permit any Holder to
participate in the Registered Exchange Offer or (v) any Holder that participates
in the Registered Exchange Offer does not receive freely transferable Exchange
Securities in exchange for tendered Securities or (vi) the Company so elects,
then the following provisions shall apply:

               (a)  the Company and the Subsidiary Guarantor shall use their
          reasonable best efforts to file as promptly as practicable (but in no
          event more than 45 days after so required or requested pursuant to
          this Section 2) with the Commission, and thereafter shall use their
          reasonable best efforts to cause to be declared effective, a shelf
          registration statement on an appropriate form under the Securities Act
          relating to the offer and sale of the Transfer Restricted Securities
          (as defined below) by the Holders thereof from time to time in
          accordance with the methods of distribution set forth in such
          registration statement (hereafter, a "Shelf Registration Statement"
          and, together with any Exchange Offer Registration Statement, a
          "Registration Statement"); provided that no Holder (other than an
          Initial Purchaser) shall be entitled to have the Securities held by it
          covered by such Shelf Registration Statement unless such Holder agrees
          in writing to be bound by all the provisions of this Agreement
          applicable to such Holder.

               (b)  The Company and the Subsidiary Guarantor shall use their
          reasonable best efforts to keep the Shelf Registration Statement
          continuously effective in order to permit the prospectus forming part
          thereof to be used by Holders of Transfer Restricted Securities for a
          period ending on the earlier of (i) two years from the Issue Date or
          such shorter period that will terminate when all the Transfer
          Restricted Securities covered by the Shelf Registration Statement have
          been sold pursuant thereto and (ii) the date on which the Securities
          become eligible for resale without volume restrictions pursuant to
          Rule 144 under the Securities Act (in any such case, such period being
          called the "Shelf Registration Period").  The Company and the
          Subsidiary Guarantor shall be deemed not to have used their reasonable
          best efforts to keep the Shelf Registration Statement effective during
          the requisite period if any of them voluntarily take any action that
          would result in Holders of Transfer Restricted Securities covered
          thereby not being able to offer and sell such Transfer Restricted
          Securities during that period, unless (i) such action is required by
          applicable law or (ii) such action is
<PAGE>

                                                                               6

          taken by the Company and the Subsidiary Guarantor in good faith and
          for valid business reasons (not including avoidance of their
          obligations hereunder), provided that the Company and the Subsidiary
          Guarantor within 90 days thereafter comply with the requirements of
          Section 4(j) hereof. Any such period during which the Company and the
          Subsidiary Guarantor fail to keep the Shelf Registration Statement
          effective and usable for offers and sales of Securities, Private
          Exchange Securities and Exchange Securities is referred to as a
          "Suspension Period". A Suspension Period shall commence on and include
          the date the Company and the Subsidiary Guarantor give notice that the
          Shelf Registration Statement is no longer effective or the prospectus
          included therein is no longer usable for offers and sales of
          Securities, Private Exchange Securities and Exchange Securities and
          shall end on the date when each Holder of Securities, Private Exchange
          Securities and Exchange Securities covered by such Shelf Registration
          Statement either receives the copies of the supplemented or amended
          prospectus contemplated by Section 4(j) hereof or is advised in
          writing by the Company and the Subsidiary Guarantor that use of the
          prospectus may be resumed. Not more than one Suspension Period shall
          be permitted in any period of 360 consecutive days. If one or more
          Suspension Periods occur, the two-year time period referenced above
          shall be extended by the number of days included in each such
          Suspension Period.

               (c)  Notwithstanding any other provisions hereof, the Company and
          the Subsidiary Guarantor will ensure that (i) any Shelf Registration
          Statement and any amendment thereto and any prospectus forming part
          thereof and any supplement thereto complies in all material respects
          with the Securities Act and the rules and regulations of the
          Commission thereunder, (ii) any Shelf Registration Statement and any
          amendment thereto (in either case, other than with respect to
          information included therein in reliance upon or in conformity with
          written information furnished to the Company by or on behalf of any
          Holder specifically for use therein (the "Holders' Information")) does
          not contain an untrue statement of a material fact or omit to state a
          material fact required to be stated therein or necessary to make the
          statements therein not misleading and (iii) any prospectus forming
          part of any Shelf Registration Statement, and any supplement to such
          prospectus (in either case, other than with respect to Holders'
          Information), does not include an untrue statement of a material fact
          or omit to state a material fact necessary in order to make the
          statements therein, in the light of the circumstances under which they
          were made, not misleading.

          3.  Liquidated Damages.  (a)  The parties hereto agree that the
Holders of Transfer Restricted Securities will suffer damages if the Company and
the Subsidiary Guarantor fails to fulfill their obligations under Section 1 or
Section 2, as applicable, and that it would not be feasible to ascertain the
extent of such damages.  Accordingly, if (i) the applicable Registration
Statement is not filed with the Commission on or prior to 60 days after the
Issue Date, (ii) the Exchange Offer Registration Statement or the Shelf
Registration Statement, as the case may be, is not declared effective within 180
days after the Issue Date (or in the case of a Shelf Registration Statement
required to be filed in response to a change in applicable law or
<PAGE>

                                                                               7

interpretations thereof by the Commission's staff, if later, within 45 days
after publication of the change in law or interpretation), (iii) the Registered
Exchange Offer is not consummated on or prior to 210 days after the Issue Date,
or (iv) the Shelf Registration Statement is filed and declared effective within
180 days after the Issue Date (or in the case of a Shelf Registration Statement
required to be filed in response to a change in applicable law or
interpretations thereof by the Commission's staff, if later, within 45 days
after publication of the change in law or interpretation) but shall thereafter
cease to be effective (at any time that the Company is obligated to maintain the
effectiveness thereof) without being succeeded within 30 days by an additional
Registration Statement filed and declared effective (each such event referred to
in clauses (i) through (iv), a "Registration Default"), the Company and the
Subsidiary Guarantor will be jointly and severally obligated to pay liquidated
damages to each Holder of Transfer Restricted Securities, during the period of
one or more such Registration Defaults, in an amount equal to $ 0.192 per week
per $1,000 of Accreted Value (as defined in the Indenture) of Transfer
Restricted Securities held by such Holder until (i) the applicable Registration
Statement is filed, (ii) the Exchange Offer Registration Statement is declared
effective and the Registered Exchange Offer is consummated, (iii) the Shelf
Registration Statement is declared effective or (iv) the Shelf Registration
Statement again becomes effective, as the case may be.  Following the cure of
all Registration Defaults, the accrual of liquidated damages will cease.  As
used herein, the term "Transfer Restricted Securities" means (i) each Security
until the date on which such Security has been exchanged for a freely
transferable Exchange Security in the Registered Exchange Offer, (ii) each
Security or Private Exchange Security until the date on which it has been
effectively registered under the Securities Act and disposed of in accordance
with the Shelf Registration Statement or (iii) each Security or Private Exchange
Security until the date on which it is distributed to the public pursuant to
Rule 144 under the Securities Act or is saleable pursuant to Rule 144(k) under
the Securities Act.  Notwithstanding anything to the contrary in this Section
3(a), the Company and the Subsidiary Guarantor shall not be required to pay
liquidated damages to a Holder of Transfer Restricted Securities if such Holder
failed to comply with its obligations to make the representations set forth in
the second to last paragraph of Section 1 or failed to provide the information
required to be provided by it, if any, pursuant to Section 4(n).

          (b)  The Company shall notify the Trustee and the Paying Agent under
     the Indenture with three business day of the happening of each and every
     Registration Default.  The Company and the Subsidiary Guarantor shall pay
     the liquidated damages due on the Transfer Restricted Securities by
     depositing with the Paying Agent (which may not be the Company for these
     purposes), in trust, for the benefit of the Holders thereof, prior to 10:00
     a.m., New York City time, on the next interest payment date specified by
     the Indenture and the Securities, sums sufficient to pay the liquidated
     damages then due.  The liquidated damages due shall be payable on each
     interest payment date specified by the Indenture and the Securities to the
     record holder entitled to receive the interest payment to be made on such
     date.  Each obligation to pay liquidated damages shall be deemed to accrue
     from and including the date of the applicable Registration Default.

          (c)  The parties hereto agree that the liquidated damages provided for
     in this Section 3 constitute a reasonable estimate of and are intended to
     constitute the sole damages that will be suffered by Holders of Transfer
     Restricted Securities by reason of
<PAGE>

                                                                               8

     the failure of (i) the Shelf Registration Statement or the Exchange Offer
     Registration Statement to be filed, (ii) the Shelf Registration Statement
     to remain effective or (iii) the Exchange Offer Registration Statement to
     be declared effective and the Registered Exchange Offer to be consummated,
     in each case to the extent required by this Agreement.

          4.  Registration Procedures.  In connection with any Registration
Statement, the following provisions shall apply:

          (a)  The Company shall (i) furnish to each Initial Purchaser, prior to
     the filing thereof with the Commission, a copy of the Registration
     Statement and each amendment thereof and each supplement, if any, to the
     prospectus included therein and shall, in its reasonable judgment, use its
     reasonable best efforts to reflect in each such document, when so filed
     with the Commission, such comments as any Initial Purchaser may reasonably
     propose; (ii) include  information substantially to the effect set forth in
     Annex A hereto on the cover, in Annex B hereto in the "Exchange Offer
     Procedures" section and the "Purpose of the Exchange Offer" section and in
     Annex C hereto in the "Plan of Distribution" section of the prospectus
     forming a part of the Exchange Offer Registration Statement, and include
     information substantially to the effect set forth in Annex D hereto in the
     Letter of Transmittal delivered pursuant to the Registered Exchange Offer;
     and (iii) if requested by any Initial Purchaser, include the information
     required by Item 507 or 508 of Regulation S-K, as applicable, in the
     prospectus forming a part of the Exchange Offer Registration Statement.

          (b)  The Company shall advise each Initial Purchaser, each Exchanging
     Dealer and the Holders (if applicable) and, if requested by any such
     person, confirm such advice in writing (which advice pursuant to clause
     (ii) through (v) hereof shall be accompanied by an instruction to suspend
     the use of the prospectus until the requisite changes have been made):

               (i)  when any Registration Statement and any amendment thereto
          has been filed with the Commission and when such Registration
          Statement or any post-effective amendment thereto has become
          effective;

               (ii)  of any request by the Commission for amendments or
          supplements to any Registration Statement or the prospectus included
          therein or for additional information;

               (iii)  of the issuance by the Commission of any stop order
          suspending the effectiveness of any Registration Statement or the
          initiation of any proceedings for that purpose;

               (iv)  of the receipt by the Company of any notification with
          respect to the suspension of the qualification of the Securities, the
          Exchange Securities or the Private Exchange Securities for sale in any
          jurisdiction or the initiation or threatening of any proceeding for
          such purpose; and
<PAGE>

                                                                               9

               (v)  of the happening of any event that requires the making of
          any changes so that the Registration Statement and any amendment
          thereto does not, when it becomes effective, contain an untrue
          statement of a material fact or omit to state a material fact required
          to be stated therein or necessary to make the statements therein not
          misleading or any prospectus forming part of any Registration
          Statement, and any supplement to such prospectus, does not include an
          untrue statement of a material fact or omit to state a material fact
          necessary in order to make the statements therein, in the light of the
          circumstances under which they were made, not misleading.

          (c)   If any event contemplated by clauses (ii) through (v) of Section
     4 occurs during the period for which the Company and the Subsidiary
     Guarantor are required to maintain an effective Registration Statement, the
     Company and the Subsidiary Guarantor will as promptly as is practicable
     prepare and file with the Commission a post-effective amendment to the
     Registration Statement or a supplement to the related prospectus or file
     any other required document so that, as thereafter delivered to purchasers
     of the Securities, Exchange Securities or Private Exchange Securities from
     a Holder, the prospectus will not include an untrue statement of a material
     fact or omit to state a material fact necessary in order to make the
     statements therein, in the light of the circumstances under which they were
     made, not misleading.

          (d)  The Company and the Subsidiary Guarantor will use all reasonable
     efforts to obtain the withdrawal at the earliest possible time of any order
     suspending the effectiveness of any Registration Statement.

          (e)  The Company will furnish to each Holder of Transfer Restricted
     Securities included within the coverage of any Shelf Registration
     Statement, without charge, one conformed copy of such Shelf Registration
     Statement and any post-effective amendment thereto, including financial
     statements and schedules and, if any such Holder so requests in writing,
     all exhibits thereto (including those, if any, incorporated by reference)
     and as many conformed copies of such Registration Statement as such Holder
     reasonably requests.

          (f)  The Company will, during the Shelf Registration Period, promptly
     deliver to each Holder of Transfer Restricted Securities included within
     the coverage of any Shelf Registration Statement, without charge, as many
     copies of the prospectus (including each preliminary prospectus) included
     in such Shelf Registration Statement and any amendment or supplement
     thereto as such Holder may reasonably request; and the Company and the
     Subsidiary Guarantor consent to the use of such prospectus or any amendment
     or supplement thereto by each of the selling Holders of Transfer Restricted
     Securities in connection with the lawful offer and sale of the Transfer
     Restricted Securities covered by such prospectus or any amendment or
     supplement thereto.

          (g)  The Company will furnish to each Initial Purchaser and each
     Exchanging Dealer, and to any other Holder who so requests, without charge,
     one conformed copy of the Exchange Offer Registration Statement and any
     post-effective amendment thereto, including financial statements and
     schedules and, if any Initial Purchaser or Exchanging
<PAGE>

                                                                              10

     Dealer or any such Holder so requests in writing, all exhibits thereto
     (including those, if any, incorporated by reference) and as many conformed
     copies of such Exchange Offer Registration Statement as such Holder
     reasonably requests.

          (h)  The Company will, during the Exchange Offer Registration Period
     or the Shelf Registration Period, as applicable, promptly deliver to each
     Initial Purchaser, each Exchanging Dealer and such other persons that are
     required to deliver a prospectus following the Registered Exchange Offer,
     without charge, as many copies of the final prospectus included in the
     Exchange Offer Registration Statement or the Shelf Registration Statement
     and any amendment or supplement thereto as such Initial Purchaser,
     Exchanging Dealer or other persons may reasonably request; and the Company
     and the Subsidiary Guarantor consent to the use of such prospectus or any
     amendment or supplement thereto by any such Initial Purchaser, Exchanging
     Dealer or other persons, as applicable, as aforesaid.

          (i)  Prior to the effective date of any Registration Statement, the
     Company and the Subsidiary Guarantor will use commercially reasonable best
     efforts to register or qualify, or cooperate with the Holders of
     Securities, Exchange Securities or Private Exchange Securities included
     therein and their respective counsel in connection with the registration or
     qualification of, such Securities, Exchange Securities or Private Exchange
     Securities for offer and sale under the securities or blue sky laws of such
     jurisdictions as any such Holder reasonably requests in writing and do any
     and all other acts or things necessary or advisable to enable the offer and
     sale in such jurisdictions of the Securities, Exchange Securities or
     Private Exchange Securities covered by such Registration Statement;
     provided that the Company and the Subsidiary Guarantor will not be required
     to qualify generally to do business in any jurisdiction where they are not
     then so qualified or to take any action which would subject them to general
     service of process or to taxation in any such jurisdiction where they are
     not then so subject.

          (j)  The Company and the Subsidiary Guarantor will reasonably
     cooperate with the Holders of Securities, Exchange Securities or Private
     Exchange Securities to facilitate the timely preparation and delivery of
     certificates representing Securities, Exchange Securities or Private
     Exchange Securities to be sold pursuant to any Registration Statement free
     of any restrictive legends and in such denominations and registered in such
     names as the Holders thereof may request in writing prior to sales of
     Securities, Exchange Securities or Private Exchange Securities pursuant to
     such Registration Statement.

          (k)  If any event contemplated by Section 4(b)(ii) through (v) occurs
     during the period for which the Company and the Subsidiary Guarantor are
     required to maintain an effective Registration Statement, the Company and
     the Subsidiary Guarantor will as promptly as is practicable prepare and
     file with the Commission a post-effective amendment to the Registration
     Statement or a supplement to the related prospectus or file any other
     required document so that, as thereafter delivered to purchasers of the
     Securities, Exchange Securities or Private Exchange Securities from a
     Holder, the prospectus will not include an untrue statement of a material
     fact or omit to state a
<PAGE>

                                                                              11

     material fact or omit to state a material fact necessary in order to make
     the statements therein, in the light of the circumstances under which they
     were made, not misleading.

          (l)  Not later than the effective date of the applicable Registration
     Statement, the Company will provide a CUSIP number for the Securities, the
     Exchange Securities and the Private Exchange Securities, as the case may
     be, and provide the applicable trustee with printed certificates for the
     Securities, the Exchange Securities or the Private Exchange Securities, as
     the case may be, in a form eligible for deposit with The Depository Trust
     Company.

          (m)  The Company and the Subsidiary Guarantor will comply with all
     applicable rules and regulations of the Commission and the Company will
     make generally available to its security holders as soon as practicable
     after the effective date of the applicable Registration Statement an
     earning statement satisfying the provisions of Section 11(a) of the
     Securities Act; provided that in no event shall such earning statement be
     delivered later than 45 days after the end of a 12-month period (or 90
     days, if such period is a fiscal year) beginning with the first month of
     the Company's first fiscal quarter commencing after the effective date of
     the applicable Registration Statement, which statement shall cover such 12-
     month period.

          (n)  The Company and the Subsidiary Guarantor will cause the Indenture
     or the Exchange Securities Indenture, as the case may be, to be qualified
     under the Trust Indenture Act as required by applicable law in a timely
     manner.

          (o)  The Company may require each Holder of Transfer Restricted
     Securities to be registered pursuant to any Shelf Registration Statement to
     furnish to the Company such information concerning the Holder and the
     distribution of such Transfer Restricted Securities as the Company may from
     time to time reasonably require for inclusion in such Shelf Registration
     Statement, and the Company may exclude from such registration the Transfer
     Restricted Securities of any Holder that fails to furnish such information
     within a reasonable time after receiving such request.

          (p)  In the case of a Shelf Registration Statement, each Holder of
     Transfer Restricted Securities to be registered pursuant thereto agrees by
     acquisition of such Transfer Restricted Securities that, upon receipt of
     any notice from the Company pursuant to Section 4(b)(ii) through (v), such
     Holder will discontinue disposition of such Transfer Restricted Securities
     until such Holder's receipt of copies of the supplemental or amended
     prospectus contemplated by Section 4(j) or until advised in writing (the
     "Advice") by the Company that the use of the applicable prospectus may be
     resumed.  If the Company shall give any notice under Section 4(b)(ii)
     through (v) during the period that the Company is required to maintain an
     effective Registration Statement (the "Effectiveness Period"), such
     Effectiveness Period shall be extended by the number of days during such
     period from and including the date of the giving of such notice to and
     including the date when each seller of Transfer Restricted Securities
     covered by such Registration Statement shall have received (x) the copies
     of the supplemental or amended prospectus contemplated by Section 4(j) (if
     an amended or supplemental
<PAGE>

                                                                              12

     prospectus is required) or (y) the Advice (if no amended or supplemental
     prospectus is required).

          (q)  In the case of a Shelf Registration Statement, the Company and
     the Subsidiary Guarantor shall enter into such customary agreements
     (including, if requested, an underwriting agreement in customary form and
     reasonably acceptable to the Company) and take all such other action, if
     any, as Holders of a majority in aggregate principal amount of the
     Securities, Exchange Securities and Private Exchange Securities being sold
     or the managing underwriters (if any) shall reasonably request in order to
     facilitate any disposition of Securities, Exchange Securities or Private
     Exchange Securities pursuant to such Shelf Registration Statement.

          (r)  In the case of a Shelf Registration Statement, the Company shall
     (i) make reasonably available for inspection by a representative of, and
     Special Counsel (as defined below) acting for, Holders of a majority in
     aggregate principal amount of the Securities, Exchange Securities and
     Private Exchange Securities being sold and any underwriter participating in
     any disposition of Securities, Exchange Securities or Private Exchange
     Securities pursuant to such Shelf Registration Statement, all relevant
     financial and other records, pertinent corporate documents and properties
     of the Company and its subsidiaries and (ii) use its reasonable best
     efforts to have its officers, directors, employees, accountants and counsel
     supply all relevant information reasonably requested by such
     representative, Special Counsel or any such underwriter (an "Inspector") in
     connection with such Shelf Registration Statement.

          (s)  In the case of a Shelf Registration Statement, the Company shall,
     if requested by Holders of a majority in aggregate principal amount of the
     Securities, Exchange Securities and Private Exchange Securities being sold,
     their Special Counsel or the managing underwriters (if any) in connection
     with such Shelf Registration Statement, use its reasonable best efforts to
     cause (i) its counsel to deliver an opinion relating to the Shelf
     Registration Statement and the Securities, Exchange Securities or Private
     Exchange Securities, as applicable, substantially in the form delivered by
     counsel for the Company in connection with the issuance and sale of the
     Securities, (ii) its officers to execute and deliver all customary
     documents and certificates requested by Holders of a majority in aggregate
     principal amount of the Securities, Exchange Securities and Private
     Exchange Securities being sold, their Special Counsel or the managing
     underwriters (if any) and (iii) its independent public accountants to
     provide a comfort letter or letters in customary form, subject to receipt
     of appropriate documentation as contemplated, and only if permitted, by
     Statement of Auditing Standards No. 72.

          5.  Registration Expenses.  The Company and the Subsidiary Guarantor
will jointly and severally bear all expenses incurred in connection with the
performance of their  obligations under Sections 1, 2, 3 and 4 and the Company
will reimburse the Initial Purchasers and the Holders for the reasonable fees
and disbursements of one firm of attorneys (in addition to any local counsel)
chosen by the Holders of a majority in aggregate principal amount of the
Securities, the Exchange Securities and the Private Exchange Securities to be
sold pursuant to
<PAGE>

                                                                              13

each Registration Statement (the "Special Counsel") acting for the Initial
Purchasers or Holders in connection therewith.

          6.   Market-Making.  (a)  For so long as any of the Securities,
Exchange Securities or Private Exchange Securities are outstanding and (i) Chase
Securities Inc. (the "Market Maker") or any of its affiliates owns any equity
securities of the Company and proposes to make a market in the Securities,
Exchange Securities or Private Exchange Securities as part of its business in
the ordinary course and (ii) in the judgment of the Market Maker or the Company,
applicable law requires the delivery of a prospectus in connection with such
market-making activities, the following provisions shall apply for the sole
benefit of the Market Maker:

               (i)  The Company and the Subsidiary Guarantor shall (A) on the
          date that the Exchange Offer Registration Statement is filed with the
          Commission, file a registration statement (the "Market-Making
          Registration Statement") (which may be the Exchange Offer Registration
          Statement or the Shelf Registration Statement if permitted by the
          rules and regulations of the Commission) and use their reasonable best
          efforts to cause such Market-Making Registration Statement to be
          declared effective by the Commission on or prior to the consummation
          of the Exchange Offer; (B) periodically amend such Market-Making
          Registration Statement so that the information contained therein
          complies with the requirements of Section 10(a) under the Securities
          Act; (C) within 45 days following the end of each of the Company=s
          fiscal quarters, file a supplement to the prospectus contained in the
          Market-Making Registration Statement that sets forth the financial
          results of the Company for such quarter; (D) amend the Market-Making
          Registration Statement or supplement the related prospectus contained
          therein when necessary to reflect any material changes in the
          information provided therein; and (E) amend the Market-Making
          Registration Statement when required to do so in order to comply with
          Section 10(a)(3) of the Securities Act; provided, however, that (1)
                                                  -----------------
          prior to filing the Market-Making Registration Statement, any
          amendment thereto or any supplement to the prospectus contained
          therein, the Company will furnish to the Market Maker copies of all
          such documents proposed to be filed, which documents will be subject
          to the review of the Market-Maker and its counsel, (2) the Company and
          the Subsidiary Guarantor will not file the Market-Making Registration
          Statement, any amendment thereto or any supplement to the prospectus
          contained therein to which the Market-Maker and its counsel shall
          reasonably object unless the Company is advised by counsel that such
          Market-Making Registration Statement, amendment or supplement is
          required to be filed in order to maintain the effectiveness of such
          Market-Making Registration Statement and (3) the Company will provide
          the Market Maker and its counsel with copies of the Market-Making
          Registration Statement and each amendment and supplement filed.

               (ii)  Promptly upon the Company satisfying the eligibility
          criteria for use of Form S-3 under the Securities Act, the Company and
          the Subsidiary Guarantor shall file a post-effective amendment to the
          Market-Making
<PAGE>

                                                                              14

          Registration Statement to convert it from a Form S-1 to a Form S-3
          registration statement.

               (iii) The Company shall notify the Market-Maker, and, if
          requested by the Market Maker, confirm such advice in writing, (A)
          when any post-effective amendment to the Market-Making Registration
          Statement or any amendment or supplement to the related prospectus has
          been filed, and, with respect to any post-effective amendment, when
          the same has become effective; (B) of any request by the Commission
          for any post-effective amendment to the Market-Making Registration
          Statement, any supplement or amendment to the related prospectus or
          for additional information; (C) the issuance by the Commission of any
          stop order suspending the effectiveness of the Market-Making
          Registration Statement or the initiation of any proceedings for that
          purpose; (D) of the receipt by the Company of any notification with
          respect to the suspension of the qualification of the Securities for
          sale in any jurisdiction or the initiation or threatening of any
          proceedings for such purpose; (E) of the happening of any event that
          causes (1) the Market-Making Registration Statement to contain an
          untrue statement of a material fact or to omit to state a material
          fact required to be stated therein or necessary to make the statements
          therein not misleading or (2) the prospectus contained in the Market
          Making Registration Statement to contain an untrue statement of a
          material fact or omit to state a material fact necessary in order to
          make the statements therein, in the light of the circumstances under
          which they were made, not misleading; and (F) of any advice from a
          nationally recognized statistical rating organization that such
          organization has placed the Company under surveillance or review with
          negative implications or has determined to downgrade the rating of the
          Securities, Exchange Securities or Private Exchange Securities or any
          other debt obligation of the Company whether or not such downgrade
          shall have been publicly announced.

               (iv)  If any event contemplated by Section 6(a)(iii)(B) through
          (E) occurs during the period for which the Company and the Subsidiary
          Guarantor are required to maintain an effective Market-Making
          Registration Statement, the Company and the Subsidiary Guarantor shall
          promptly prepare and file with the Commission a post-effective
          amendment to the Market-Making Registration Statement or a supplement
          to the related prospectus or file any other required document so that
          the prospectus will not include an untrue statement of a material fact
          or omit to state a material fact necessary in order to make the
          statements therein, in the light of the circumstances under which they
          were made, not misleading.

               (v)   In the event of the issuance of any stop order suspending
          the effectiveness of the Market-Making Registration Statement or of
          any order suspending the qualification of the Securities, Exchange
          Securities or Private Exchange Securities for sale in any
          jurisdiction, the Company and the Subsidiary Guarantor shall use their
          reasonable best efforts to obtain its withdrawal promptly.
<PAGE>

                                                                              15

               (vi)  The Company shall furnish to the Market Maker, without
          charge, (A) at least one conformed copy of the Market-Making
          Registration Statement and any post-effective amendment thereto and
          (B) as many copies of the related prospectus and any amendment or
          supplement thereto as the Market Maker may reasonably request.

               (vii) The Company and the Subsidiary Guarantor shall consent to
          the use of the prospectus contained in the Market-Making Registration
          Statement or any amendment or supplement thereto by the Market Maker
          in connection with the lawful offering and sale of the Securities,
          Exchange Securities or Private Exchange Securities.

               (viii)For so long as the Securities, Exchange Securities or
          Private Exchange Securities shall be outstanding, the Company shall
          furnish to the Market Maker (A) as soon as practicable after the end
          of each of the Company's fiscal years, the number of copies reasonably
          requested by the Market Maker of the Company's annual report for such
          year, if such report is distributed to the stockholders of the
          Company, (B) as soon as available, the number of copies reasonably
          requested by the Market Maker of each report (including, without
          limitation, reports on Forms 10-K, 10-Q and 8-K) or definitive proxy
          statements (if any) of the Company filed under the Exchange Act or
          mailed to stockholders and (C) any public reports and all reports and
          financial statements furnished by the Company to the Nasdaq National
          Market System or any U.S. national securities exchange or quotation
          service upon which the Securities or Exchange Securities may be listed
          pursuant to requirements of or agreements with such exchange or
          quotation service or to the Commission pursuant to the Exchange Act or
          any rule or regulation of the Commission thereunder.

          (b)  In the case of the Market-Making Registration Statement, the
     Market Maker agrees that, upon receipt of any notice from the Company
     pursuant to clauses (B) through (E) of paragraph 6(a)(iii), the Market
     Maker will discontinue disposition of such Securities, Exchange Securities
     or Private Exchange Securities until the Market Maker's receipt of copies
     of the supplemental or amended prospectus contemplated by Section 6(a)(iv)
     or until advised in writing by the Company that the use of the applicable
     prospectus may be resumed.

          (c)  Prior to the effective date of the Market-Making Registration
     Statement, the Company and the Subsidiary Guarantor will use commercially
     reasonable efforts to register or qualify, or cooperate with the Market
     Maker and its respective counsel in connection with the registration or
     qualification of, such Securities, Exchange Securities or Private Exchange
     Securities for offer and sale under the securities or blue sky laws of such
     jurisdictions as the Market Maker reasonably requests in writing and do any
     and all other acts or things necessary or advisable to enable the offer and
     sale in such jurisdictions of the Securities, Exchange Securities or
     Private Exchange Securities covered by the Market-Making Registration
     Statement; provided that the Company and the Subsidiary Guarantor will not
     be required to qualify generally to do business in any
<PAGE>

                                                                              16

     jurisdiction where they are not then so qualified or to take any action
     which would subject them to general service of process or to taxation in
     any such jurisdiction where they are not then so subject.

          (d)  The Company and the Subsidiary Guarantor represent that the
     Market-Making Registration Statement, any post-effective amendments
     thereto, any amendments or supplements to the related prospectus and any
     documents filed by them under the Exchange Act will, when they become
     effective or are filed with the Commission, as the case may be, conform in
     all respects to the requirements of the Securities Act and the Exchange Act
     and the rules and regulations of the Commission thereunder and will not, as
     of the effective date of such Market-Making Registration Statement or post-
     effective amendments and as of the filing date of amendments or supplements
     to such prospectus or filings under the Exchange Act, contain an untrue
     statement of a material fact or omit to state a material fact required to
     be stated therein or necessary to make the statements therein not
     misleading; provided that no representation or warranty is made as to
     information contained in or omitted from the Market-Making Registration
     Statement or the related prospectus in reliance upon and in conformity with
     written information furnished to the Company by the Market Maker
     specifically for inclusion therein, which information the parties hereto
     agree will be limited to the statements concerning the market-making
     activities of the Market Maker to be set forth on the cover page and in the
     "Plan of Distribution" section of the prospectus (the "Market Maker's
     Information").

          (e)  At the time of effectiveness of the Market-Making Registration
     Statement and concurrently with each time the Market-Making Registration
     Statement or the related prospectus shall be amended or such prospectus
     shall be supplemented, the Company shall (if reasonably requested by the
     Market Maker) furnish the Market Maker and its counsel with a certificate
     of its Chief Executive Officer and its Executive Vice President and Chief
     Financial Officer to the effect that:

               (i)   the Market-Making Registration Statement has been declared
          effective;

               (ii)  in the case of an amendment or supplement, such amendment
          has become effective under the Securities Act as of the date and time
          specified in such certificate, if applicable, such amendment or
          supplement to the prospectus was filed with the Commission pursuant to
          the subparagraph of Rule 424(b) under the Securities Act specified in
          such certificate on the date specified therein;

               (iii) to the knowledge of such officers, no stop order
          suspending the effectiveness of the Market-Making Registration
          Statement has been issued and no proceeding for that purpose is
          pending or threatened by the Commission; and

               (iv)  such officers have carefully examined (A) the Market-Making
          Registration Statement and, in the case of an amendment, such
          amendment, and as of the date of such Market-Making Registration
          Statement or amendment, as
<PAGE>

                                                                              17

          applicable, the Market-Making Registration Statement, as amended, if
          applicable, did not include any untrue statement of a material fact
          and did not omit to state a material fact required to be stated
          therein or necessary to make the statements therein not misleading and
          (B) the related prospectus, and, in the case of a supplement, such
          supplement, and as of the date of such prospectus or supplement, as
          applicable, such prospectus, as supplemented, if applicable, did not
          include an untrue statement of a material fact or omit to state a
          material fact necessary in order to make the statements therein, in
          the light of the circumstances under which they were made, not
          misleading.

          (f)  At the time of effectiveness of the Market-Making Registration
     Statement and concurrently with each time the Market-Making Registration
     Statement or the related prospectus shall be amended or such prospectus
     shall be supplemented, the Company shall (if requested by the Market Maker)
     furnish the Market Maker and its counsel with the written opinion of
     counsel for the Company satisfactory to the Market Maker to the effect
     that:

               (i)   the Market-Making Registration Statement has been declared
          effective;

               (ii)  in the case of an amendment or supplement, such amendment
          has become effective under the Securities Act as of the date and time
          specified in such opinion and such amendment or supplement to the
          prospectus was filed with the Commission pursuant to the subparagraph
          of Rule 424(b) under the Securities Act specified in such opinion on
          the date specified therein;

               (iii) to the knowledge of such counsel, no stop order suspending
          the effectiveness of the Market-Making Registration Statement has been
          issued and no proceeding for that purpose is pending or threatened by
          the Commission; and

               (iv)  such counsel has participated in conferences with officers
          of the Company and independent public accountants for the Company at
          which the contents of such Market-Making Registration Statement and
          prospectus (and, in the case of an amendment or supplement, such
          amendment or supplement) and related matters were discussed and has no
          reason to believe that as of the date of such Market-Making
          Registration Statement, amendment or supplement, as applicable, the
          Market-Making Registration Statement and the prospectus, as amended or
          supplemented, if applicable, contained any untrue statement of a
          material fact or omitted to state a material fact required to be
          stated therein or necessary to make the statements therein not
          misleading.

          (g)  At the time of effectiveness of the Market-Making Registration
     Statement and concurrently with each time the Market-Making Registration
     Statement or the related prospectus shall be amended or such prospectus
     shall be supplemented to include audited annual financial information, the
     Company shall (if requested by the Market Maker) furnish the Market-Maker
     and its counsel with a letter of PricewaterhouseCoopers LLP (or other
     independent public accountants for the Company of nationally recognized
     standing), in form satisfactory to the Market-Maker, addressed
<PAGE>

                                                                              18

     to the Market-Maker and dated the date of delivery of such letter, (i)
     confirming that they are independent public accountants within the meaning
     of the Securities Act and are in compliance with the applicable
     requirements relating to the qualification of accountants under Rule 2-01
     of Regulation S-X of the Commission and, (ii) in all other respects,
     substantially in the form of the letter delivered to the Initial Purchasers
     pursuant to Section 5(f) of the Purchase Agreement, with, in the case of an
     amendment or supplement to include audited financial information, such
     changes as may be necessary to reflect the amended or supplemented
     financial information.

          (h)  The Company hereby agrees to indemnify the Market Maker, and, if
     applicable, contribute to the Market Maker, in accordance with Sections 7
     and 8 of this Agreement.

          (i)  The Company will comply with the provisions of this Section 6 at
     its own expense and will reimburse the Market Maker for its expenses
     associated with this Section 6 (including reasonable fees and expenses of
     counsel).

          (j)  The agreements contained in this Section 6 and the
     representations, warranties and agreements contained in this Agreement
     shall survive all offers and sales of the Securities and shall remain in
     full force and effect, regardless of any termination or cancelation of this
     Agreement or any investigation made by or on behalf of any indemnified
     party.

          (k)  For purposes of this Section 6, any reference to the terms
     "amend", "amendment" or "supplement" with respect to the Market-Making
     Registration Statement or the prospectus contained therein shall be deemed
     to refer to and include the filing under the Exchange Act of any document
     deemed to be incorporated therein by reference.

          7.   Indemnification.  (a)  In the event of a Shelf Registration
Statement or in connection with any prospectus delivery pursuant to an Exchange
Offer Registration Statement by an Initial Purchaser or Exchanging Dealer, as
applicable, or in connection with any prospectus delivery by the Market Maker,
the Company and the Subsidiary Guarantor shall jointly and severally indemnify
and hold harmless each Holder (including, without limitation, any such Initial
Purchaser or Exchanging Dealer or the Market Maker), its affiliates, their
respective officers, directors, employees, representatives and agents, and each
person, if any, who controls such Holder within the meaning of the Securities
Act or the Exchange Act (collectively referred to for purposes of this Section 7
and Section 8 as a Holder) from and against any loss, claim, damage or
liability, joint or several, or any action in respect thereof (including,
without limitation, any loss, claim, damage, liability or action relating to
purchases and sales of Securities, Exchange Securities or Private Exchange
Securities), to which that Holder may become subject, whether commenced or
threatened, under the Securities Act, the Exchange Act, any other federal or
state statutory law or regulation, at common law or otherwise, insofar as such
loss, claim, damage, liability or action arises out of, or is based upon, (i)
any untrue statement or alleged untrue statement of a material fact contained in
any such Registration Statement or Market-Making Registration Statement or any
prospectus forming part thereof or in any amendment or supplement thereto, (ii)
the omission or alleged omission to state therein a
<PAGE>

                                                                              19

material fact required to be stated therein or necessary in order to make the
statements therein, in the light of the circumstances under which they were
made, not misleading or (iii) in the case of the Market Maker, any breach by the
Company of its representations, warranties and agreements set forth in Section
6, and shall reimburse each Holder promptly upon demand for any legal or other
expenses reasonably incurred by that Holder in connection with investigating or
defending or preparing to defend against or appearing as a third party witness
in connection with any such loss, claim, damage, liability or action as such
expenses are incurred; provided, however, that the Company and the Subsidiary
Guarantor shall not be liable in any such case to the extent that any such loss,
claim, damage, liability or action arises out of, or is based upon, an untrue
statement or alleged untrue statement in, or omission or alleged omission from,
any of such documents in reliance upon and in conformity with any Holders'
Information or Market Maker's Information; and provided, further that with
respect to any such untrue statement in or omission from any related preliminary
prospectus, the indemnity agreement contained in this Section 7(a) shall not
inure to the benefit of any Holder from whom the person asserting any such loss,
claim, damage, liability or action received Securities, Exchange Securities or
Private Exchange Securities to the extent that such loss, claim, damage,
liability or action of or with respect to such Holder results from the fact that
both (i) a copy of the final prospectus was not sent or given to such person at
or prior to the written confirmation of the sale of such Securities, Exchange
Securities or Private Exchange Securities to such person and (ii) the untrue
statement in or omission from the related preliminary prospectus was corrected
in the final prospectus unless, in either case, such failure to deliver the
final prospectus was a result of non-compliance by the Company with Section
4(e), 4(f), 4(g) or 4(h) or Section 6, as applicable.

          (b)  In the event of a Shelf Registration Statement or in connection
with any prospectus delivery by the Market Maker, each Holder (including, if
applicable, the Market Maker) shall indemnify and hold harmless the Company, its
affiliates, their respective officers, directors, employees, representatives and
agents, and each person, if any, who controls the Company within the meaning of
the Securities Act or the Exchange Act (collectively referred to for purposes of
this Section 7(b) and Section 8 as the Company), from and against any loss,
claim, damage or liability, joint or several, or any action in respect thereof,
to which the Company may become subject, whether commenced or threatened, under
the Securities Act, the Exchange Act, any other federal or state statutory law
or regulation, at common law or otherwise, insofar as such loss, claim, damage,
liability or action arises out of, or is based upon, (i) any untrue statement or
alleged untrue statement of a material fact contained in any such Registration
Statement or Market-Making Registration Statement or any prospectus forming part
thereof or in any amendment or supplement thereto or (ii) the omission or
alleged omission to state therein a material fact required to be stated therein
or necessary in order to make the statements therein, in the light of the
circumstances under which they were made, not misleading, but in each case only
to the extent that the untrue statement or alleged untrue statement or omission
or alleged omission was made in reliance upon and in conformity with any
Holders' Information or Market Maker's Information furnished to the Company by
such Holder, and shall reimburse the Company for any legal or other expenses
reasonably incurred by the Company in connection with investigating or defending
or preparing to defend against or appearing as a third party witness in
connection with any such loss, claim, damage, liability or action as such
expenses are incurred; provided, however, that no such Holder shall be liable
for any indemnity claims hereunder in excess of the amount of net proceeds
received by such Holder
<PAGE>

                                                                              20

from the sale of Securities, Exchange Securities or Private Exchange Securities
pursuant to such Shelf Registration Statement or prospectus.

          (c)  Promptly after receipt by an indemnified party under this Section
7 of notice of any claim or the commencement of any action, the indemnified
party shall, if a claim in respect thereof is to be made against the
indemnifying party pursuant to Section 7(a) or 7(b), notify the indemnifying
party in writing of the claim or the commencement of that action; provided,
however, that the failure to notify the indemnifying party shall not relieve it
from any liability which it may have under this Section 7 except to the extent
that it has been prejudiced (through the forfeiture of substantive rights or
defenses) by such failure; and provided, further, that the failure to notify the
indemnifying party shall not relieve it from any liability which it may have to
an indemnified party otherwise than under this Section 7.  If any such claim or
action shall be brought against an indemnified party, and it shall notify the
indemnifying party thereof, the indemnifying party shall be entitled to
participate therein and, to the extent that it wishes, jointly with any other
similarly notified indemnifying party, to assume the defense thereof with
counsel reasonably satisfactory to the indemnified party.  After notice from the
indemnifying party to the indemnified party of its election to assume the
defense of such claim or action, the indemnifying party shall not be liable to
the indemnified party under this Section 7 for any legal or other expenses
subsequently incurred by the indemnified party in connection with the defense
thereof other than the reasonable costs of investigation; provided, however,
that an indemnified party shall have the right to employ its own counsel in any
such action, but the fees, expenses and other charges of such counsel for the
indemnified party will be at the expense of such indemnified party unless (i)
the employment of counsel by the indemnified party has been authorized in
writing by the indemnifying party, (ii) the indemnified party has reasonably
concluded (based upon advice of counsel to the indemnified party) that there may
be legal defenses available to it or other indemnified parties that are
different from or in addition to those available to the indemnifying party,
(iii) a conflict or potential conflict exists (based upon advice of counsel to
the indemnified party) between the indemnified party and the indemnifying party
(in which case the indemnifying party will not have the right to direct the
defense of such action on behalf of the indemnified party) or (iv) the
indemnifying party has not in fact employed counsel reasonably satisfactory to
the indemnified party to assume the defense of such action within a reasonable
time after receiving notice of the commencement of the action, in each of which
cases the reasonable fees, disbursements and other charges of counsel will be at
the expense of the indemnifying party or parties.  It is understood that the
indemnifying party or parties shall not, in connection with any proceeding or
related proceedings in the same jurisdiction, be liable for the reasonable fees,
disbursements and other charges of more than one separate firm of attorneys (in
addition to any local counsel) at any one time for all such indemnified party or
parties.  Each indemnified party, as a condition of the indemnity agreements
contained in Sections 7(a) and 7(b), shall use all reasonable efforts to
cooperate with the indemnifying party in the defense of any such action or
claim.  No indemnifying party shall be liable for any settlement of any such
action effected without its written consent (which consent shall not be
unreasonably withheld), but if settled with its written consent or if there be a
final judgment for the plaintiff in any such action, the indemnifying party
agrees to indemnify and hold harmless any indemnified party from and against any
loss or liability by reason of such settlement or judgment.  No indemnifying
party shall, without the prior written consent of the indemnified party (which
consent shall not be unreasonably withheld), effect any settlement of any
pending or threatened proceeding in respect of which any indemnified party is or
could have
<PAGE>

                                                                              21


been a party and indemnity could have been sought hereunder by such indemnified
party, unless such settlement includes an unconditional release of such
indemnified party from all liability on claims that are the subject matter of
such proceeding.

          8.  Contribution.  If the indemnification provided for in Section 7 is
unavailable or insufficient to hold harmless an indemnified party under Section
7(a) or 7(b), then each indemnifying party shall, in lieu of indemnifying such
indemnified party, contribute to the amount paid or payable by such indemnified
party as a result of such loss, claim, damage or liability, or action in respect
thereof, (i) in such proportion as shall be appropriate to reflect the relative
benefits received by the Company and the Subsidiary Guarantor from the initial
offering and sale of the Securities, on the one hand, and by a Holder from
receiving Securities, Exchange Securities or Private Exchange Securities, as
applicable, registered under the Securities Act, on the other, or (ii) if the
allocation provided by clause (i) above is not permitted by applicable law, in
such proportion as is appropriate to reflect not only the relative benefits
referred to in clause (i) above but also the relative fault of the Company and
the Subsidiary Guarantor, on the one hand, and such Holder, on the other, with
respect to the statements or omissions that resulted in such loss, claim, damage
or liability, or action in respect thereof, as well as any other relevant
equitable considerations.  The relative fault shall be determined by reference
to, among other things, whether the untrue or alleged untrue statement of a
material fact or the omission or alleged omission to state a material fact
relates to the Company and the Subsidiary Guarantor or information supplied by
the Company and the Subsidiary Guarantor, on the one hand, or to any Holders,
Information or Market Maker's Information supplied by such Holder, on the other,
the intent of the parties and their relative knowledge, access to information
and opportunity to correct or prevent such untrue statement or omission.  The
parties hereto agree that it would not be just and equitable if contributions
pursuant to this Section 8 were to be determined by pro rata allocation or by
any other method of allocation that does not take into account the equitable
considerations referred to herein.  The amount paid or payable by an indemnified
party as a result of the loss, claim, damage or liability, or action in respect
thereof, referred to above in this Section 8 shall be deemed to include, for
purposes of this Section 8, any legal or other expenses reasonably incurred by
such indemnified party in connection with investigating or defending or
preparing to defend any such action or claim.  Notwithstanding the provisions of
this Section 8, an indemnifying party that is a Holder of Securities, Exchange
Securities or Private Exchange Securities shall not be required to contribute
any amount in excess of the amount by which the total price at which the
Securities, Exchange Securities or Private Exchange Securities sold by such
indemnifying party to any purchaser exceeds the amount of any damages which such
indemnifying party has otherwise paid or become liable to pay by reason of any
untrue or alleged untrue statement or omission or alleged omission.  No person
guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of
the Securities Act) shall be entitled to contribution from any person who was
not guilty of such fraudulent misrepresentation.

          9.  Rules 144 and 144A.  The Company shall use its reasonable best
efforts to file the reports required to be filed by it under the Securities Act
and the Exchange Act in a timely manner and, if at any time the Company is not
required to file such reports, it will, upon the written request of any Holder
of Transfer Restricted Securities or the Market Maker, make publicly available
other information so long as necessary to permit sales of such Holder's or the
Market Maker's securities pursuant to Rules 144 and 144A.  The Company and the
Subsidiary Guarantor covenant that they will take such further action as any
Holder of Transfer Restricted
<PAGE>

                                                                              22


Securities or the Market Maker may reasonably request, all to the extent
required from time to time to enable such Holder or the Market Maker to sell
Transfer Restricted Securities without registration under the Securities Act
within the limitation of the exemptions provided by Rules 144 and 144A
(including, without limitation, the requirements of Rule 144A(d)(4)). Upon the
written request of any Holder of Transfer Restricted Securities or the Market
Maker, the Company and the Subsidiary Guarantor shall deliver to such Holder or
the Market Maker, as applicable, a written statement as to whether they have
complied with such requirements. Notwithstanding the foregoing, nothing in this
Section 8 shall be deemed to require the Company to register any of its
securities pursuant to the Exchange Act.

          10.  Underwritten Registrations.  If any of the Transfer Restricted
Securities covered by any Shelf Registration Statement are to be sold in an
underwritten offering, the investment banker or investment bankers and manager
or managers that will administer the offering will be selected by the Holders of
a majority in aggregate principal amount of such Transfer Restricted Securities
included in such offering, subject to the consent of the Company (which shall
not be unreasonably withheld or delayed), and such Holders shall be responsible
for all underwriting commissions and discounts in connection therewith.

          No person may participate in any underwritten registration hereunder
unless such person (i) agrees to sell such person's Transfer Restricted
Securities on the basis reasonably provided in any underwriting arrangements
approved by the persons entitled hereunder to approve such arrangements and (ii)
completes and executes all questionnaires, powers of attorney, indemnities,
underwriting agreements and other documents reasonably required under the terms
of such underwriting arrangements.

          11.  Miscellaneous.  (a)  Amendments and Waivers.  No failure or delay
by the Company, the Subsidiary Guarantor, any Holder or the Market Maker in
exercising any right under this Agreement shall operate as a waiver thereof nor
shall any single or partial exercise of any such right or amendment or
discontinuance of steps to enforce any such right preclude any other of further
exercise thereof or the exercise of any other right. The provisions of this
Agreement may not be amended, modified or supplemented, and waivers or consents
to departures from the provisions hereof may not be given, unless the Company
has obtained the written consent of Holders of a majority in aggregate principal
amount of the Securities, the Exchange Securities and the Private Exchange
Securities, taken as a single class (and, with respect to the provisions of
Section 6, the written consent of the Market Maker).  Notwithstanding the
foregoing, a waiver or consent to depart from the provisions hereof with respect
to a matter that relates exclusively to the rights of Holders whose Securities,
Exchange Securities or Private Exchange Securities are being sold pursuant to a
Registration Statement and that does not directly or indirectly affect the
rights of other Holders may be given by Holders of a majority in aggregate
principal amount of the Securities, the Exchange Securities and the Private
Exchange Securities being sold by such Holders pursuant to such Registration
Statement.

          (b)  Notices. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand-delivery, first-class mail,
telecopier or air courier guaranteeing next-day delivery:
<PAGE>

                                                                              23


          (1)  if to a Holder, at the most current address given by such Holder
     to the Company in accordance with the provisions of this Section 11(b),
     which address initially is, with respect to each Holder, the address of
     such Holder maintained by the Registrar under the Indenture, with a copy in
     like manner to Chase Securities Inc., BT Alex. Brown Incorporated and
     Lehman Brothers Inc.;

          (2)  if to an Initial Purchaser, initially at its address set forth in
     the Purchase Agreement; and

          (3)  if to the Company, initially at the address of the Company set
     forth in the Purchase Agreement.

          All such notices and communications shall be deemed to have been duly
given:  when delivered by hand, if personally delivered; one business day after
being delivered to a next-day air courier; five business days after being
deposited in the mail; and when receipt is acknowledged by the recipient's
telecopier machine, if sent by telecopier.

          (c)  Successors And Assigns.  This Agreement shall be binding upon the
Company and its successors and assigns.

          (d)  Counterparts.  This Agreement may be executed in any number of
counterparts (which may be delivered in original form or by telecopier) and by
the parties hereto in separate counterparts, each of which when so executed
shall be deemed to be an original and all of which taken together shall
constitute one and the same agreement.

          (e)  Definition of Terms.  For purposes of this Agreement, (a) the
term "business day" means any day on which the New York Stock Exchange, Inc. is
open for trading, (b) the term "subsidiary" has the meaning set forth in Rule
405 under the Securities Act and (c) except where otherwise expressly provided,
the term "affiliate" has the meaning set forth in Rule 405 under the Securities
Act.

          (f)  Headings.  The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

          (g)  GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED
IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

          (h)  Remedies.  In the event of a breach by the Company, any
Subsidiary Guarantor or by any Holder of any of their obligations under this
Agreement, each Holder, the Company or any Subsidiary Guarantor, as the case may
be, in addition to being entitled to exercise all rights granted by law,
including recovery of damages (other than the recovery of damages for a breach
by the Company or any Subsidiary Guarantor of its obligations under Sections 1
or 2 hereof for which liquidated damages have been paid pursuant to Section 3
hereof), will be entitled to specific performance of its rights under this
Agreement.  The Company, the Subsidiary Guarantor and each Holder agree that
monetary damages would not be adequate compensation for any loss incurred by
reason of a breach by each such person of any of
<PAGE>

                                                                              24


the provisions of this Agreement and hereby further agree that, in the event of
any action for specific performance in respect of such breach, each such person
shall waive the defense that a remedy at law would be adequate.

          (i)  No Inconsistent Agreements.  The Company and each Subsidiary
Guarantor represents, warrants and agrees that (i) it has not entered into,
shall not, on or after the date of this Agreement, enter into any agreement that
is inconsistent with the rights granted to the Holders in this Agreement or
otherwise conflicts with the provisions hereof, (ii) it has not previously
entered into any agreement which remains in effect granting any registration
rights with respect to any of its debt securities to any person and (iii) (with
respect to the Company) without limiting the generality of the foregoing,
without the written consent of the Holders of a majority in aggregate principal
amount of the then outstanding Transfer Restricted Securities and the Market
Maker, it shall not grant to any person the right to request the Company to
register any debt securities of the Company under the Securities Act unless the
rights so granted are not in conflict or inconsistent with the provisions of
this Agreement.

          (j)  No Piggyback on Registrations.  Neither the Company nor any of
its security holders (other than the Holders of Transfer Restricted Securities
in such capacity) shall have the right to include any securities of the Company
in any Shelf Registration or Registered Exchange Offer other than Transfer
Restricted Securities.

          (k)  Severability. The remedies provided herein are cumulative and not
exclusive of any remedies provided by law.  If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction to be
invalid, illegal, void or unenforceable, the remainder of the terms, provisions,
covenants and restrictions set forth herein shall remain in full force and
effect and shall in no way be affected, impaired or invalidated, and the parties
hereto shall use their reasonable best efforts to find and employ an alternative
means to achieve the same or substantially the same result as that contemplated
by such term, provision, covenant or restriction.  It is hereby stipulated and
declared to be the intention of the parties that they would have executed the
remaining terms, provisions, covenants and restrictions without including any of
such that may be hereafter declared invalid, illegal, void or unenforceable.
<PAGE>

                                                                              25


          Please confirm that the foregoing correctly sets forth the agreement
among the Company, the Subsidiary Guarantor and the Initial Purchasers.


                              Very truly yours,


                              TELECORP PCS, INC.,


                              by     /s/ Thomas H. Sullivan
                                 _____________________________________
                                 Name:  Thomas H. Sullivan
                                 Title: Executive Vice President
                                        and Chief Financial Officer



                              TELECORP COMMUNICATIONS, INC.,


                              by     /s/ Thomas H. Sullivan
                                 _____________________________________
                                 Name:  Thomas H. Sullivan
                                 Title: President, Treasurer and Secretary


Accepted:

CHASE SECURITIES INC.,


by   /s/ R. David McDonough
  _______________________________
       Authorized Signatory


BT ALEX. BROWN INCORPORATED,


by     /s/ Sanjai Bijawat
  _______________________________
       Authorized Signatory
<PAGE>

                                                                              26


LEHMAN BROTHERS INC.,


by      /s/ Paul Zoidis
  ________________________________
       Authorized Signatory
<PAGE>

                                                                         ANNEX A

     Each broker-dealer that receives Exchange Securities for its own account
pursuant to the Registered Exchange Offer must acknowledge that it will deliver
a prospectus in connection with any resale of such Exchange Securities.  The
Letter of Transmittal states that by so acknowledging and by delivering a
prospectus, a broker-dealer will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act.  This Prospectus, as it
may be amended or supplemented from time to time, may be used by a broker-dealer
in connection with resales of Exchange Securities received in exchange for
Securities where such Securities were acquired by such broker-dealer as a result
of market-making activities or other trading activities.  The Company has agreed
that, for a period of 180 days after the Expiration Date (as defined herein), it
will make this Prospectus available to any broker-dealer for use in connection
with any such resale.  See "Plan of Distribution".
<PAGE>

                                                                         ANNEX B

     Each broker-dealer that receives Exchange Securities for its own account in
exchange for Securities, where such Securities were acquired by such broker-
dealer as a result of market-making activities or other trading activities, must
acknowledge that it will deliver a prospectus in connection with any resale of
such Exchange Securities.  See "Plan of Distribution".
<PAGE>

                                                                         ANNEX C

                             PLAN OF DISTRIBUTION


          Each broker-dealer that receives Exchange Securities for its own
account pursuant to the Registered Exchange Offer must acknowledge that it will
deliver a prospectus in connection with any resale of such Exchange Securities.
This Prospectus, as it may be amended or supplemented from time to time, may be
used by a broker-dealer in connection with resales of Exchange Securities
received in exchange for Securities where such Securities were acquired as a
result of market-making activities or other trading activities.  The Company has
agreed that, for a period of 180 days after the Expiration Date, it will make
this prospectus, as amended or supplemented, available to any broker-dealer for
use in connection with any such resale.  In addition, until July 22, 1999, all
dealers effecting transactions in the Exchange Securities may be required to
deliver a prospectus.

          The Company will not receive any proceeds from any sale of Exchange
Securities by broker-dealers.  Exchange Securities received by broker-dealers
for their own account pursuant to the Registered Exchange Offer may be sold from
time to time in one or more transactions in the over-the-counter market, in
negotiated transactions, through the writing of options on the Exchange
Securities or a combination of such methods of resale, at market prices
prevailing at the time of resale, at prices related to such prevailing market
prices or at negotiated prices.  Any such resale may be made directly to
purchasers or to or through brokers or dealers who may receive compensation in
the form of commissions or concessions from any such broker-dealer or the
purchasers of any such Exchange Securities.  Any broker-dealer that resells
Exchange Securities that were received by it for its own account pursuant to the
Registered Exchange Offer and any broker or dealer that participates in a
distribution of such Exchange Securities may be deemed to be an "underwriter"
within the meaning of the Securities Act and any profit on any such resale of
Exchange Securities and any commission or concessions received by any such
persons may be deemed to be underwriting compensation under the Securities Act.
The Letter of Transmittal states that, by acknowledging that it will deliver and
by delivering a prospectus, a broker-dealer will not be deemed to admit that it
is an "underwriter" within the meaning of the Securities Act.

          For a period of 180 days after the Expiration Date the Company will
promptly send additional copies of this Prospectus and any amendment or
supplement to this Prospectus to any broker-dealer that requests such documents
in the Letter of Transmittal.  The Company has agreed to pay all expenses
incident to the Registered Exchange Offer (including the expenses of one counsel
for the Holders of the Securities) other than commissions or concessions of any
broker-dealers and will indemnify the Holders of the Securities (including any
broker-dealers) against certain liabilities, including liabilities under the
Securities Act.
<PAGE>

                                                                         ANNEX D

               [_]  CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10
               ADDITIONAL COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY
               AMENDMENTS OR SUPPLEMENTS THERETO.

               Name:
               Address:


If the undersigned is not a broker-dealer, the undersigned represents that it is
not engaged in, and does not intend to engage in, a distribution of Exchange
Securities.  If the undersigned is a broker-dealer that will receive Exchange
Securities for its own account in exchange for Securities that were acquired as
a result of market-making activities or other trading activities, it
acknowledges that it will deliver a prospectus in connection with any resale of
such Exchange Securities; however, by so acknowledging and by delivering a
prospectus, the undersigned will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act.

<PAGE>

                                                                 EXHIBIT 10.20.1

                                                                  Execution Copy


     AGREEMENT, dated as of July 17,1998, by and among AT&T Wireless PCS Inc., a
Delaware corporation ("AT&T PCS"), TWR Cellular, Inc., a Maryland corporation
                       --------
("TWR"), the Cash Equity Investors, the TeleCorp Investors, the Management
  ---
Stockholders and TeleCorp PCS, Inc., a Delaware corporation (the "Company" and,
                                                                  -------
together with AT&T PCS, TWR, the Cash Equity Investors, the TeleCorp Investors,
and the Management Stockholders, the "Parties'). AT&T PCS, TWR, the Cash Equity
Investors, and the TeleCorp Investors are sometimes referred to herein as the
"Purchasers." Capitalized terms used but not defined herein shall have the
 ----------
meanings given to such terms in the Securities Purchase Agreement referred to
below.

     WHEREAS, the Parties have entered into a Securities Purchase Agreement,
dated as of January 23, 1998 (the "Securities Purchase Agreement"), pursuant to
                                   -----------------------------
which the Purchasers acquired certain securities of the Company in consideration
of contributions of cash and/or other property to the capital of the Company;

     WHEREAS, the Company is proposing to enter into agreements contemplating
the acquisition by a subsidiary of the Company of the San Diego F-Block PCS
License and the issuance of shares of capital stock of the Company in
consideration therefor (the "San Diego Transactions"), all on the terms set
forth in agreements substantially in the form of drafts which have been
furnished to the Purchasers and their respective counsel;

     WHEREAS, concurrently with the execution hereof, AT&T Wireless Services,
Inc., a Delaware corporation, and the Company have entered into a Letter of
Intent relating to the San Diego F-Block PCS License proposed to be acquired;
and

     WHEREAS, the Parties are entering into this Agreement in order to set forth
their understandings with respect to the matters contemplated hereby;

     NOW, THEREFORE, in consideration of the premises and the mutual promises
and covenants herein contained, the parties agree as follows:

     1.   Consent. The Purchasers hereby consent to the consummation of the San
          -------
Diego Transactions by the Company and its subsidiaries.

     2.   Amendment of Certain Agreements. The Parties hereby agree that
          -------------------------------
immediately upon the consummation of the San Diego Transactions, the terms (i)
"Company Territory", as used in the Securities Purchase Agreement; (ii)
 -----------------
"Licensed Territory", as used in the Network Membership License Agreement; (iii)
"Territory", as used in the Stockholders' Agreement; and (iv) "TeleCorp Service
 ---------
Area" as used in the Roaming Agreement, shall be amended to include the San
Diego BTA (as such term is defined in the Roaming Agreement). Notwithstanding
the foregoing, the Company shall not commence build-out activities with respect
to the San Diego
<PAGE>

PCS System until the Company has adopted a build-out schedule with respect to
such system and obtained additional financing sufficient to finance such build-
out without affecting the Company's build-out plans for its other markets, which
build-out schedule and the terms and amount of which additional financing are
reasonably satisfactory to AT&T PCS and Cash Equity Investors representing 66-
2/3% of the Aggregate Commitment of all Cash Equity Investors.

     3.   Amendment of Schedules I and V of the Purchase Agreement-, Schedule I
          ---------------------------------------------------------------------
of the Stockholders Agreement.
- -----------------------------

          (i)    The Purchase Agreement is hereby amended by deleting page one
of Schedule I thereto with respect to the Aggregate Commitment without the
Supplemental Commitment in its entirety and replacing it with Schedule I annexed
hereto, which reflects all modifications and additions to the proposed
contributions of the Cash Equity Investors in respect of such Aggregate
Commitment to the capital of the Company which have been made since the
execution of the Purchase Agreement. Page two of Schedule I to the Purchase
Agreement with respect to the Supplemental Commitment shall remain in full force
and effect. In consideration of the Supplemental Commitment of $5 million, the
Company will issue units comprised of one share of Series C Preferred and one
share of Class A Common at the price of $ 1,000.00 per unit.

          (ii)   The Purchase Agreement is hereby amended by deleting Schedule V
thereto in its entirety and replacing it with Schedule V annexed hereto, which
reflects the amendment set forth in Section 5 hereof and all other modifications
and additions to the proposed capitalization of the Company which have been made
since the execution of the Purchase Agreement.

          (iii)  The Stockholders' Agreement is hereby amended by naming and
including in Schedule I thereto Thomas Sullivan and Gerald Vento.

     4.   Amendment of Section 6. 10 of Purchase Agreement. The Purchase
          ------------------------------------------------
Agreement is hereby amended by deleting Section 6. 10 therefrom in its entirety.

     5.   Consideration to AT&T PCS and TWR. Notwithstanding the terms of the
          ---------------------------------
Purchase Agreement, including without limitation Section 2.5(a) thereof, at the
Closing AT&T PCS and TWR shall receive no shares of Class D Common Stock and, in
lieu thereof, shall receive the number of shares of Series F Preferred Stock set
forth opposite their names on Schedule V thereto, as amended by this Agreement.

     6.   Legal Structure. Attached hereto as Exhibit A is an accurate and
          ---------------
complete legal structure chart depicting the ownership of the Company's
subsidiaries, the states in which such subsidiaries were formed and any and all
foreign qualifications to conduct business they possess.

     7.   Credit Agreement. Attached hereto as Exhibit B are accurate and
          ----------------
complete copies of the Credit Agreement and all other Credit Documents.

     8.   TeleCorp Financial Statements. Attached hereto as Exhibit C are the
          -----------------------------
updated financial statements of TeleCorp for the year ended December 31, 1997.

                                      -2-
<PAGE>

     9.   Pre-Closing and Bridge Notes. The Company represents and warrants to
          ----------------------------
the Purchasers that Schedule I attached hereto sets forth, with respect to each
Cash Equity Investor: (i) the Initial Cash Contribution of each such investor,
(ii) the principal amount of its advances in respect of the Pre-Closing Notes,
(iii) the principal amount of its advances in respect of the Bridge Notes, plus
interest accrued thereon through January 23, 1998 and (iv) the net Initial Cash
Contributions to be made by each Cash Equity Investor at Closing, which shall
equal each such investor's Initial Cash Contribution less the amounts described
in subsections (ii) and (iii) of this Section 9.

     10.  Termination of Agreements. Effective on the date hereof, each of the
          -------------------------
TeleCorp Investors and the Management Stockholders, on behalf of themselves and
their Affiliates (other than the Company and its subsidiaries), agree that all
agreements or understandings (other than the Purchase Agreement and the
agreements entered into in connection therewith) to which both (a) TeleCorp is a
party (or is otherwise entitled to any benefits, as a third party beneficiary or
otherwise) and (b) such TeleCorp Investor or Management Stockholder (or an
Affiliate thereof) is a party (or is otherwise entitled to any benefits, as a
third party beneficiary or other-wise), are terminated and of no further force
or effect.

     11.  Company Operations. It is contemplated that certain of the
          ------------------
Transactions and the business that the Company proposes to engage in will be
conducted through subsidiaries of the Company. The Purchasers consent to such
subsidiary's participation in such Transactions and business on the conditions
that (i) the subsidiary shall at all times be a directly or indirectly wholly-
owned subsidiary of the Company, and (ii) the Company shall at all times cause
such subsidiary to perform the subsidiary's obligations thereby without any
further actions required of the parties thereto.

     12.  Management Stockholders Agreements. By execution of this Agreement,
          ----------------------------------
the Purchasers hereby agree to be bound by the obligations in, and entitled to
the benefits of, each of the several stockholders agreements among the Company,
the Purchasers and each Company employee party thereto, all with the same effect
as if the Purchasers had executed and delivered each such agreement.

     13.  Interexchange Services. AT&T Wireless Services, Inc. has offered to
          ----------------------
enter into an agreement with the Company with respect to the provision of
interexchange services to the Company and its subsidiaries, the price and other
terms of which agreement shall be substantially as set forth in the Draft Voice
Contract and Pricing it has previously furnished to the Company.

     14.  Allocation. It is agreed that the value attributable as of the date
          ----------
hereof to the Series E Preferred Stock and Class A Common Stock is $0.01 and
$1.00, respectively.

     15.  Reissuance of Stock Certificates. With respect to certificates
          --------------------------------
representing shares of Preferred Stock and Common Stock issued at the Closing to
Cash Equity Investors that are also TeleCorp Investors, the Company covenants
that promptly following the Closing each such certificate shall be cancelled
and, in lieu thereof, the Company will issue two new certificates, one
representing the shares issued to such Person in its capacity as a Cash Equity
Investor, and the other representing the shares issued to such Person in its
capacity as a TeleCorp Investor. The

                                      -3-
<PAGE>

Company shall retain possession of each such certificate issued to a Person in
its capacity as a Cash Equity Investor, together with a stock power in respect
of the shares represented by such certificate, all in accordance with the terms
of such Cash Equity Investor's Pledge Agreement. The Company shall deliver each
such certificate issued to a Person in its capacity as a TeleCorp Investor as
directed by such Investor.

     16.  Miscellaneous. This Agreement embodies the entire agreement and
          -------------
understanding of the Parties relating to the subject matter hereof and
supersedes all prior agreements and understandings relating to such subject
matter. This Agreement may not be amended, changed, supplemented, waived or
otherwise modified except by an instrument in writing signed by each Party
against whom enforcement is sought. This Agreement shall be binding upon and
shall inure to the benefit of each Party and their permitted successors and
assigns. Each Party will execute and deliver such further documents and take
such further actions as the other Parties may reasonably request consistent with
the provisions hereof in order to effect the intent and purposes of this
Agreement. The parties hereto hereby irrevocably and unconditionally consent to
submit to the non-exclusive jurisdiction of the courts of the State of New York
and of the United States of America located in the County of New York, New York
(the "New York Courts") for any litigation arising out of or relating to this
      ---------------
Agreement and the Transactions, waive any objection to the laying of venue of
any such litigation in the New York Courts and agrees not to plead or claim in
any New York Court that such litigation brought therein has been brought in an
inconvenient forum. Any provision of this Agreement which is prohibited or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the
remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other Jurisdiction. This Agreement may be executed in any number of
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one instrument.

                                      -4-
<PAGE>

     IN WITNESS WHEREOF, the undersigned have executed this Agreement as of the
date first above written.

                                   TELECORP PCS, INC.

                                   By: /s/ Gerald T. Vento
                                       -----------------------------

                                   Name: Gerald T. Vento
                                         ---------------------------

                                   Title: CEO
                                          --------------------------


                                   AT&T WIRELESS PCS INC.

                                   By:  /s/ Mark H. Thomas
                                        ----------------------------

                                   Name: Mark H. Thomas
                                         ---------------------------

                                   Title:  Vice President & CEO
                                           -------------------------



                                   TWR CELLULAR, INC.

                                   By:  /s/ Mark H. Thomas
                                        ----------------------------

                                   Name: Mark H. Thomas
                                         ---------------------------

                                   Title:  Vice President & CEO
                                           -------------------------

                                      -5-
<PAGE>

Cash Equity Investors:

                                   CB CAPITAL INVESTORS, L.P.

                                   By: CB Capital Investors, Inc., its general
                                      partner

                                   By: /s/ Michael R. Hannon
                                      --------------------------------
                                   Name: Michael R. Hannon
                                         -----------------------------
                                   Title:  General Partner
                                           ---------------------------



                                   NORTHWOOD VENTURES LLC

                                   By: /s/ Henry T. Wilson
                                       -------------------------------
                                   Name: Henry T. Wilson
                                         -----------------------------
                                   Title: Manager
                                          ----------------------------

                                   NORTHWOOD CAPITAL PARTNERS LLC

                                   By: /s/ Henry T. Wilson
                                       -------------------------------
                                   Name: Henry T. Wilson
                                         -----------------------------
                                   Title:  Manager
                                           ---------------------------

                                   ONELIBERTY FUND III, L.P.

                                   By: /s/ Joseph T. McCullen, Jr.
                                       -------------------------------
                                   Name: Joseph T. McCullen, Jr.
                                         -----------------------------
                                   Title:  General Partner
                                           ---------------------------



                                   ONELIBERTY FUND IV, L.P.

                                   By: /s/ Joseph T. McCullen, Jr.
                                       -------------------------------
                                   Name: Joseph T. McCullen, Jr.
                                         -----------------------------
                                   Title:  General Partner
                                           ---------------------------

                                      -6-
<PAGE>

                                    MEDIA./COMMUNICATIONS INVESTORS LIMITED
                                    PARTNERSHIP

                                    By: M/C Investors General Partner - J. Inc.,
                                       general partner


                                    By: /s/ James F. Wade
                                        -------------------------------
                                    Name:  James F. Wade
                                    Title:  President


                                    MEDIA/COMMUNICATIONS PARTNERS III LIMITED
                                    PARTNERSHIP

                                    By: M/C III L.L.C., its general partner
                                    By: /s/ James F. Wade
                                        -------------------------------
                                    Name:  James F. Wade
                                    Title:  Manager


                                    EQUITY-LINKED INVESTORS-II

                                    By: ROHIT M. DESAI ASSOCIATES-II,
                                       its general partner


                                    By: /s/ Frank S. Pados
                                        -------------------------------
                                    Name:  Frank S. Pados
                                         ------------------------------
                                    Title: Executive Vice President
                                           ----------------------------


                                    PRIVATE EQUITY INVESTORS M, L.P.

                                    By: ROHIT M. DESAI ASSOCIATES-II,
                                       its general partner


                                    By:  /s/ Frank S. Pados
                                       -------------------------------
                                    Name:  Frank S. Pados
                                         -----------------------------
                                    Title:  Executive Vice President
                                          ----------------------------

                                      -7-
<PAGE>

                                    HOAK COMMUNICATIONS PARTNERS, L.P.

                                    By: HCP Investments, L.P., its general
                                    partner

                                    By: Hoak Ptrs, LLC, its general partner
                                    By: /s/ James M. Hoak
                                        -------------------------------
                                    Name:  James M. Hoak
                                    Title:  Manager


                                    HCP CAPITAL FUND, L.P.

                                    By: James M. Hoak & Co., its General
                                       Partner

                                    By: /s/ James M. Hoak
                                        -------------------------------
                                    Name:  James M. Hoak
                                    Title:  Chairman

                                    ENTERGY TECHNOLOGY HOLDING COMPANY


                                    By: /s/ Stephen T. Refsell
                                        -------------------------------
                                    Name: Stephen T. Refsell
                                          -----------------------------
                                    Title: Vice President
                                           ----------------------------


                                    TORONTO DOMINION INVESTMENTS INC.

                                    By: /s/ Martha L. Gariepy
                                        -------------------------------
                                    Name: Martha L. Gariepy
                                         ------------------------------
                                    Title:  Vice President
                                            ---------------------------

                                      -8-
<PAGE>

                                    WHITNEY EQUITY PARTNERS. L.P.

                                    By: J.H. Whitney Equity Partners. L.L.C.
                                       its general partner

                                    By: /s/ Daniel J. O'Brien
                                        -------------------------------
                                    Name:  Daniel J. O'Brien
                                    Title:  Member


                                    J.H. WHITNEY III, L.P.

                                    By: J.H. Whitney Equity Partners III,
                                       L.L.C.. its general partner

                                    By: /s/ Daniel J. O'Brien
                                        -------------------------------
                                    Name:  Daniel J. O'Brien
                                    Title:  Member


                                    WHITNEY STRATEGIC PARTNERS III. L.P.

                                    By: J.H. Whitney Equity Partners III,
                                       L.L.C.. its general partner

                                    By: /s/ Daniel J. O'Brien
                                        -------------------------------
                                    Name:  Daniel J. O'Brien
                                    Title:  Member

                                      -9-
<PAGE>

TeleCorp Investors:

                                    CB CAPITAL INVESTORS, L.P.

                                    By: CB Capital Investors, Inc., its general
                                       partner

                                    By: /s/ Michael R. Hannon
                                        -------------------------------
                                    Name: Michael R. Hannon
                                          -----------------------------
                                    Title: General Partner
                                           ----------------------------


                                    NORTHWOOD VENTURES LLC

                                    By: /s/ Henry T. Wilson
                                        -------------------------------
                                    Name: Henry T. Wilson
                                          -----------------------------
                                    Title: Manager
                                           ----------------------------


                                    NORTHWOOD CAPITAL PARTNERS LLC

                                    By: /s/ Henry T. Wilson
                                        -------------------------------
                                    Name: Henry T. Wilson
                                          -----------------------------
                                    Title: Manager
                                           ----------------------------


                                    ONE LIBERTY FUND III, L.P.

                                    By: /s/ Joseph T. McCullen
                                        -------------------------------
                                    Name: Joseph T. McCullen
                                          -----------------------------
                                    Title: General Partner
                                           ----------------------------


                                    ONE LIBERTY FUND IV, L.P.

                                    By: /s/ Joseph T. McCullen
                                        -------------------------------
                                    Name: Joseph T. McCullen
                                          -----------------------------
                                    Title: General Partner
                                           ----------------------------

                                      -10-
<PAGE>

                                    MEDIA./COMMUNICATIONS INVESTORS LIMITED
                                    PARTNERSHIP

                                    By: M/C Investors General Partner - J. Inc.,
                                       general partner


                                    By: /s/ James F. Wade
                                        -------------------------------
                                    Name:  James F. Wade
                                    Title:  President


                                    MEDIA/COMMUNICATIONS PARTNERS III LIMITED
                                    PARTNERSHIP

                                    By: M/C III L.L.C., its general partner
                                    By: /s/ James F. Wade
                                        -------------------------------
                                    Name:  James F. Wade
                                    Title:  Manager


                                    ENTERGY TECHNOLOGY HOLDING COMPANY

                                    By: /s/ Stephen T. Refsell
                                        -------------------------------
                                    Name:  Stephen T. Refsell
                                    Title:  Vice President

                                      -11-
<PAGE>

                                    GILDE INTERNATIONAL, B.V.

                                    By: /s/ Joseph McCullen, Jr.
                                        -------------------------------

                                    Name: Joseph McCullen, Jr.
                                          -----------------------------

                                    Title: Attorney in Fact
                                           ----------------------------

                                      -12-
<PAGE>

                                    TELECORP INVESTMENT CORP., LLC

                                    By: /s/ Tom Sullivan
                                        -------------------------------

                                    Name: Tom Sullivan
                                          -----------------------------

                                    Title: ____________________________

                                      -13-
<PAGE>

                                    MANAGEMENT STOCKHOLDERS

                                    GERALD T. VENTO

                                            /s/ Gerald T. Vento
                                    -----------------------------------

                                    THOMAS H. SULLIVAN

                                            /s/ Thomas Sullivan
                                    -----------------------------------

                                      -14-
<PAGE>

                                  Schedule V
              Share Allocation Without Supplemental Allocation(a)
                        AT&T Does Not Receive Tracking

<TABLE>
<CAPTION>
                                                                                          Preferred Stock
                                  ------------------   ---------------------------------------------------------------------------
                                     Total Dollars     Series A   Series B   Series C    Series D   Series E   Series F   Senior
                                       Committed                                                                          Common
                                  ------------------   ---------------------------------------------------------------------------
<S>                               <C>                  <C>        <C>       <C>          <C>        <C>        <C>        <C>
Cash Equity
 Chase                                 $ 27,782,016         0.00      0.00    27,782.02       0.00       0.00       0.00    0.00
 Desai                                   27,782,016         0.00      0.00    27,782.02       0.00       0.00       0.00    0.00
 Hoak                                    20,836.512         0.00      0.00    20,836.51       0.00       0.00       0.00    0.00
 JH                                      17,363,760         0.00      0.00    17,363.76       0.00       0.00       0.00    0.00
Entergy                                  13,891,008         0.00      0.00    13,891.01       0.00       0.00       0.00    0.00
M/C                                      10,418,256         0.00      0.00    10,418.26       0.00       0.00       0.00    0.00
One Liberty                               3,472,752         0.00      0.00     3,472.75       0.00       0.00       0.00    0.00
TD                                        3,472,752         0.00      0.00     3,472.75       0.00       0.00       0.00    0.00
Northwood                                 2,430,926         0.00      0.00     2,430.93       0.00       0.00       0.00    0.00
Gerald Vento                                450,000         0.00      0.00       450.00       0.00       0.00       0.00    0.00
Tom Sullivan                                100,000         0.00      0.00       100.00       0.00       0.00       0.00    0.00
                                  ------------------   ---------------------------------------------------------------------------
Total Cash Equity                       128,000,000         0.00      0.00  128,000,000       0.00       0.00       0.00    0.00
Supplemental                                      0         0.00      0.00         0.00       0.00       0.00       0.00    0.00
TeleCorp Licenses
 One Liberty Fund                         1,531,433         0.00      0.00     1,531.43       0.00       0.00       0.00    0.00
 Gilde International                         15,461         0.00      0.00        15.46       0.00       0.00       0.00    0.00
 Northwood Ventures                         928,137         0.00      0.00       928.14       0.00       0.00       0.00    0.00
 Northwood Capital Partners                 232,034         0.00      0.00       232.03       0.00       0.00       0.00    0.00
 CB Capital Investors LP                  1,160,171         0.00      0.00     1,160.17       0.00       0.00       0.00    0.00
 TeleCorp Investment Corp., LLC           1,160,171         0.00      0.00     1,160.17       0.00       0.00       0.00    0.00
 M/C Investors                               46,403         0.00      0.00        46.40       0.00       0.00       0.00    0.00
 M/C Partners                             1,113,768         0.00      0.00     1,113.77       0.00       0.00       0.00    0.00
 Entergy Technology                       1,160,171         0.00      0.00     1,160.17       0.00       0.00       0.00    0.00
                                  ------------------   ----------------------------------------------------------------------------
SubTotal                                  7,347,748         0.00      0.00     7,347.75       0.00       0.00       0.00    0.00

AT&T                                     45,974,850    30,649.90      0.00         0.00  15,740.93       0.00  15,324.95    0.00
TRW                                      54,109,369    36,072.91      0.00         0.00  18,526.04       0.00  18,036.46    0.00
Mercury Licenses                                  0         0.00      0.00         0.00       0.00       0.00       0.00    0.00
Gerald Vento                                      0         0.00      0.00         0.00       0.00   8,729.40       0.00    0.00
Tom Sullivan                                      0         0.00      0.00         0.00       0.00   5,426.38       0.00    0.00
J. Dobson                                         0         0.00      0.00         0.00       0.00   2,287.21       0.00    0.00
R. Dowski                                         0         0.00      0.00         0.00       0.00     714.34       0.00    0.00
A. Price                                          0         0.00      0.00         0.00       0.00     714.34       0.00    0.00
J. Dorso                                          0         0.00      0.00         0.00       0.00     127.80       0.00    0.00
D. Chaplain                                       0         0.00      0.00         0.00       0.00     127.80       0.00    0.00
P. Collins                                        0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
R. Johnson                                        0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
S. Chandler                                       0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
D. Knutson                                        0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
A. Gordon                                         0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
P. Bellman                                        0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
                                  ------------------   ---------------------------------------------------------------------------
Total                                  $235,431,967    66,722.81      0.00   135,347.75  34,266.97  19,660.81  33,361.41    0.00
                                  ==================   ===========================================================================

<CAPTION>
                                                                           Common
                                  --------------------------------------------------------------------------------------------
                                     Series A   Series B  Tracking C  Tracking D    Voting       Total        Percent of Total
                                                                                  Preference
                                  --------------------------------------------------------------------------------------------
<S>                               <C>           <C>       <C>         <C>         <C>            <C>          <C>
Cash Equity
 Chase                               26,369.02      0.00       87.10      571.78        0.00     27,027.90               14.00%
 Desai                               26,369.02      0.00       87.10      571.78        0.00     27,027.90               14.00%
 Hoak                                19,776.77      0.00       65.32      428.84        0.00     20,270.93               10.50%
 JH                                  16,480.64      0.00       54.44      357.37        0.00     16,892.44                8.75%
Entergy                              13,184.51      0.00        0.00      329.44        0.00     13,513.95                7.00%
M/C                                   9,888.38      0.00       32.66      214.42        0.00     10,135.46                5.25%
One Liberty                           3,296.13      0.00       10.89       71.47        0.00      3,378.49                1.75%
TD                                    3,296.13      0.00       10.89       71.47        0.00      3,378.49                1.75%
Northwood                             2,307.29      0.00        7.62       50.03        0.00      2,364.94                1.22%
Gerald Vento                            427.11      0.00        1.41        9.26        0.00        437.79                0.23%
Tom Sullivan                             94.91      0.00        0.31        2.06        0.00         97.29                0.05%
                                  --------------------------------------------------------------------------------------------
Total Cash Equity                   121,489.91      0.00      357.73    2,677.93        0.00    124,525.57               64.49%
Supplemental                              0.00      0.00        0.00        0.00        0.00          0.00                0.00%
TeleCorp Licenses
 One Liberty Fund                     1,336.43      0.00        2.18       14.31        0.00      1,352.92                0.70%
 Gilde International                     13.49      0.00        0.02        0.14        0.00         13.66                0.01%
 Northwood Ventures                     913.80      0.00        1.49        9.79        0.00        925.08                0.48%
 Northwood Capital Partners             228.45      0.00        0.37        2.45        0.00        231.27                0.12%
 CB Capital Investors LP              1,142.25      0.00        1.86       12.23        0.00      1,156.34                0.60%
 TeleCorp Investment Corp., LLC       1,142.25      0.00        1.86       12.23        0.00      1,156.34                0.60%
 M/C Investors                           45.69      0.00        0.07        0.49        0.00         46.26                0.02%
 M/C Partners                         1,096.55      0.00        1.79       11.74        0.00      1,110.09                0.57%
 Entergy Technology                   1,142.25      0.00        0.00       14.09        0.00      1,156.34                0.60%
                                  --------------------------------------------------------------------------------------------
SubTotal                              7,061.16      0.00        9.65       77.48        0.00      7,148.30                3.70%

AT&T                                      0.00      0.00        0.00        0.00        0.00     15,324.95                7.94%
TRW                                       0.00      0.00        0.00        0.00        0.00     18,036.46                9.34%
Mercury Licenses                          0.00      0.00        0.00        0.00        0.00          0.00                0.00%
Gerald Vento                         10,779.82      0.00      339.83        0.00        5.00     11,119.65                5.76%
Tom Sullivan                          6,700.97      0.00      211.25        0.00        5.00      6,912.22                3.58%
J. Dobson                             3,459.45      0.00        0.00        0.00        0.00      3,459.45                1.79%
R. Dowski                             1,455.91      0.00        0.00        0.00        0.00      1,455.91                0.75%
A. Price                              1,455.91      0.00        0.00        0.00        0.00      1,455.91                0.75%
J. Dorso                                260.46      0.00        0.00        0.00        0.00        260.46                0.13%
D. Chaplain                             260.46      0.00        0.00        0.00        0.00        260.46                0.13%
P. Collins                              520.92      0.00        0.00        0.00        0.00        520.92                0.27%
R. Johnson                              520.92      0.00        0.00        0.00        0.00        520.92                0.27%
S. Chandler                             520.92      0.00        0.00        0.00        0.00        520.92                0.27%
D. Knutson                              520.92      0.00        0.00        0.00        0.00        520.92                0.27%
A. Gordon                               520.92      0.00        0.00        0.00        0.00        520.92                0.27%
P. Bellman                              520.92      0.00        0.00        0.00        0.00        520.92                0.27%
                                  --------------------------------------------------------------------------------------------
Total                               156,049.57      0.00      918.47    2,755.39       10.00    193,084.85              100.00%
                                  ============================================================================================
</TABLE>

(a)  Management has received shares predicated on the occurrence of the
supplemental allocation. If the supplemental allocation does not occur, shares
will be repurchased from management such that management receives 14.00% of the
fully-diluted equity.
(b)  Assumes that management meets certain return hurdles and that all
     management warrants are issued.

                                      15
<PAGE>

                                   Schedule V
                 Share Allocation With Supplemental Allocation
                         AT&T Does Not Receive Tracking

<TABLE>
<CAPTION>
                                                                                          Preferred Stock
                                  -------------------  --------------------------------------------------------------------------
                                     Total Dollars     Series A   Series B   Series C    Series D   Series E   Series F   Senior
                                       Committed                                                                          Common
                                  -------------------  --------------------------------------------------------------------------
<S>                                 <C>                <C>        <C>       <C>          <C>        <C>        <C>        <C>
Cash Equity
 Chase                                 $ 27,782,016         0.00      0.00    27,782.02       0.00       0.00       0.00    0.00
 Desai                                   27,782,016         0.00      0.00    27,782.02       0.00       0.00       0.00    0.00
 Hoak                                    20,836,512         0.00      0.00    20,836.51       0.00       0.00       0.00    0.00
 JH                                      17,363,760         0.00      0.00    17,363.76       0.00       0.00       0.00    0.00
 Entergy                                 13,891,008         0.00      0.00    13,891.01       0.00       0.00       0.00    0.00
 M/C                                     10,418,256         0.00      0.00    10,418.26       0.00       0.00       0.00    0.00
 One Liberty                              3,472,752         0.00      0.00     3,472.75       0.00       0.00       0.00    0.00
 TD                                       3,472,752         0.00      0.00     3,472.75       0.00       0.00       0.00    0.00
 Northwood                                2,430,926         0.00      0.00     2,430.93       0.00       0.00       0.00    0.00
 Gerald Vento                               450,000         0.00      0.00       450.00       0.00       0.00       0.00    0.00
 Tom Sullivan                               100,000         0.00      0.00       100.00       0.00       0.00       0.00    0.00
                                  -------------------  --------------------------------------------------------------------------
Total Cash Equity                       128,000,000         0.00      0.00  128,000,000       0.00       0.00       0.00    0.00
Supplemental                              5,000,000         0.00      0.00     5,000.00       0.00       0.00       0.00    0.00
TeleCorp Licenses
 One Liberty Fund                         1,531,433         0.00      0.00     1,531.43       0.00       0.00       0.00    0.00
 Gilde International                         15,461         0.00      0.00        15.46       0.00       0.00       0.00    0.00
 Northwood Ventures                         928,137         0.00      0.00       928.14       0.00       0.00       0.00    0.00
 Northwood Capital Partners                 232,034         0.00      0.00       232.03       0.00       0.00       0.00    0.00
 CB Capital Investors LP                  1,160,171         0.00      0.00     1,160.17       0.00       0.00       0.00    0.00
 TeleCorp Investment Corp., LLC           1,160,171         0.00      0.00     1,160.17       0.00       0.00       0.00    0.00
 M/C Investors                               46,403         0.00      0.00        46.40       0.00       0.00       0.00    0.00
 M/C Partners                             1,113,768         0.00      0.00     1,113.77       0.00       0.00       0.00    0.00
 Entergy Technology                       1,160,171         0.00      0.00     1,160.17       0.00       0.00       0.00    0.00
                                  -------------------  --------------------------------------------------------------------------
SubTotal                                  7,347,748         0.00      0.00     7,347.75       0.00       0.00       0.00    0.00

AT&T                                     45,974,850    30,649.90      0.00         0.00  15,740.93       0.00  15,324.95    0.00
TRW                                      54,109,369    36,072.91      0.00         0.00  18,526.04       0.00  18,036.46    0.00
Mercury Licenses                          2,332,545         0.00      0.00     2,332.55       0.00       0.00       0.00    0.00
Gerald Vento                                      0         0.00      0.00         0.00       0.00   8,729.40       0.00    0.00
Tom Sullivan                                      0         0.00      0.00         0.00       0.00   5,426.38       0.00    0.00
J. Dobson                                         0         0.00      0.00         0.00       0.00   2,287.21       0.00    0.00
R. Dowski                                         0         0.00      0.00         0.00       0.00     714.34       0.00    0.00
A. Price                                          0         0.00      0.00         0.00       0.00     714.34       0.00    0.00
J. Dorso                                          0         0.00      0.00         0.00       0.00     127.80       0.00    0.00
D. Chaplain                                       0         0.00      0.00         0.00       0.00     127.80       0.00    0.00
P. Collins                                        0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
R. Johnson                                        0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
S. Chandler                                       0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
D. Knutson                                        0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
A. Gordon                                         0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
P. Bellman                                        0         0.00      0.00         0.00       0.00     255.59       0.00    0.00
                                  -------------------  --------------------------------------------------------------------------
Total                                  $242,764,512    66,722.81      0.00   142,680.29  34,266.97  19,660.81  33,361.41    0.00
                                  -------------------  --------------------------------------------------------------------------


<CAPTION>
                                                                          Common
                                   -----------------------------------------------------------------------------------------
                                    Series A   Series B  Tracking C  Tracking D    Voting       Total        Percent of Total
                                                                                 Preference
                                  -------------------------------------------------------------------------------------------
<S>                                <C>         <C>       <C>         <C>         <C>         <C>             <C>
Cash Equity
 Chase                              26,369.02      0.00       87.10      571.78        0.00     27,027.90               13.49%
 Desai                              26,369.02      0.00       87.10      571.78        0.00     27,027.90               13.49%
 Hoak                               19,776.77      0.00       65.32      428.84        0.00     20,270.93               10.12%
 JH                                 16,480.64      0.00       54.44      357.37        0.00     16,892.44                8.43%
 Entergy                            13,184.51      0.00        0.00      329.44        0.00     13,513.95                6.75%
 M/C                                 9,888.38      0.00       32.66      214.42        0.00     10,135.46                5.06%
 One Liberty                         3,296.13      0.00       10.89       71.47        0.00      3,378.49                1.69%
 TD                                  3,296.13      0.00       10.89       71.47        0.00      3,378.49                1.69%
 Northwood                           2,307.29      0.00        7.62       50.03        0.00      2,364.94                1.18%
 Gerald Vento                          427.11      0.00        1.41        9.26        0.00        437.79                0.22%
 Tom Sullivan                           94.91      0.00        0.31        2.06        0.00         97.29                0.05%
                                  -------------------------------------------------------------------------------------------
Total Cash Equity                  121,489.91      0.00      357.73    2,677.93        0.00    124,525.57               62.15%
Supplemental                         5,000.00      0.00        0.00        0.00        0.00      5,000.00                2.50%
TeleCorp Licenses
 One Liberty Fund                    1,336.43      0.00        2.18       14.31        0.00      1,352.92                0.68%
 Gilde International                    13.49      0.00        0.02        0.14        0.00         13.66                0.01%
 Northwood Ventures                    913.80      0.00        1.49        9.79        0.00        925.08                0.46%
 Northwood Capital Partners            228.45      0.00        0.37        2.45        0.00        231.27                0.12%
 CB Capital Investors LP             1,142.25      0.00        1.86       12.23        0.00      1,156.34                0.58%
 TeleCorp Investment Corp., LLC      1,142.25      0.00        1.86       12.23        0.00      1,156.34                0.58%
 M/C Investors                          45.69      0.00        0.07        0.49        0.00         46.26                0.02%
 M/C Partners                        1,096.55      0.00        1.79       11.74        0.00      1,110.09                0.55%
 Entergy Technology                  1,142.25      0.00        0.00       14.09        0.00      1,156.34                0.58%
                                  -------------------------------------------------------------------------------------------
SubTotal                             7,061.16      0.00        9.65       77.48        0.00      7,148.30                3.57%

AT&T                                     0.00      0.00        0.00        0.00        0.00     15,324.95                7.65%
TRW                                      0.00      0.00        0.00        0.00        0.00     18,036.46                9.00%
Mercury Licenses                     2,269.23      0.00        0.00        0.00        0.00      2,269.23                1.13%
Gerald Vento                        10,799.82      0.00      339.83        0.00        5.00     11,119.65                5.55%
Tom Sullivan                         6,700.97      0.00      211.25        0.00        5.00      6,912.22                3.45%
J. Dobson                            3,459.45      0.00        0.00        0.00        0.00      3,459.45                1.73%
R. Dowski                            1,455.91      0.00        0.00        0.00        0.00      1,455.91                0.73%
A. Price                             1,455.91      0.00        0.00        0.00        0.00      1,455.91                0.73%
J. Dorso                               260.46      0.00        0.00        0.00        0.00        260.46                0.13%
D. Chaplain                            260.46      0.00        0.00        0.00        0.00        260.46                0.13%
P. Collins                             520.92      0.00        0.00        0.00        0.00        520.92                0.26%
R. Johnson                             520.92      0.00        0.00        0.00        0.00        520.92                0.26%
S. Chandler                            520.92      0.00        0.00        0.00        0.00        520.92                0.26%
D. Knutson                             520.92      0.00        0.00        0.00        0.00        520.92                0.26%
A. Gordon                              520.92      0.00        0.00        0.00        0.00        520.92                0.26%
P. Bellman                             520.92      0.00        0.00        0.00        0.00        520.92                0.26%
                                  -------------------------------------------------------------------------------------------
Total                              163,318.80      0.00      918.47    2,755.39       10.00    200,354.08              100.00%
                                  -------------------------------------------------------------------------------------------


                                                                                               Cash Equity        64.65%
                                                                                               Original THC         .37%
                                                                                               AT&T               16.63%
                                                                                               Mercury              .13%
</TABLE>


(a)  Assumes that management meets certain return hurdles and that all
     management warrants are issued.

                                       16
<PAGE>

                         TELECORP HOLDING CORP., INC.

                             FINANCIAL STATEMENTS
                for the years ended December 31, 1996 and 1997
                                      AND
                                REPORT THEREON

                                       17
<PAGE>

                       Report-of Independent Accountants
                       ---------------------------------

To the Board of Directors and Shareholders
TeleCorp PCS Inc, and Predecessor Company:

          In our opinion, the accompanying balance sheets and the related
statements of operations, changes in shareholders' equity (deficit) and cash
flows present fairly, in all material respects, the financial position of
TeleCorp Holding Corp. Inc., at December 31, 1996 and 1997, and the results of
operations and its cash flows for the period July 29, 1996 (inception) to
December 31, 1996, the year ended December 31, 1997, and the period July 29,
1996 (inception) to December 31, 1997, in conformity with generally accepted
accounting principles. These financial statements are the responsibility of the
Company's management; our responsibility is to express an opinion on these
financial statements based an our audits. We conducted our audits of these
statements in accordance with generally accepted auditing standards which
require that we plan and perform the audit to obtain reasonable assurance about
whether the financial statements are free of material misstatement. An audit
includes examining, on a test basis, evidence supporting the amounts and
disclosures in the financial statements, assessing the accounting principles
used and significant estimates made by management, and evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for the opinion expressed above.


McLean, Virginia
July 15, 1998

                                       18
<PAGE>

                          TELECORP HOLDING CORP., INC.
                        (A Development Stage Enterprise)
                                 BALANCE SHEETS

<TABLE>
<CAPTION>
                                           ASSETS
                                                                                     December 31,
                                                                             1996                       1997
                                                                             ----                       ----
<S>                                                                          <C>                        <C>
Current assets:
 Cash and cash equivalents                                                        $   51,646             $ 2,566,685
 Other current assets                                                                 21,877                  73,468
                                                                                  ----------             -----------
   Total current assets                                                               73,523               2,640,153
Property and equipment, net                                                              829               3,609,274
PCS licenses                                                                               -              10,018,375
Intangible assets                                                                          -                       -
FCC deposit                                                                        7,500,000                       -
Other assets                                                                           _____                  26,673
                                                                                  ----------             -----------
   Total assets                                                                    7,574,352             $16,294,476

                                           LIABILITIES AND SHAREHOLDERS EQUITY (DEFICIT)
Current liabilities:
 Accounts payable                                                                     98,570             $ 3,202,295
 Notes payable                                                                       488,750               2,808,500
 Notes payable to affiliates                                                               -               2,072,573
 Due to affiliates                                                                         -                 824,164
 Accrued interest                                                                                            389.079
                                                                                  -----------            -----------
   Total current liabilities                                                         597.320               9,296,611
U.S. Government financing                                                                  -               7,727,322
Lucent vendor Series A bonds                                                               -                       -
Senior credit facility                                                                     -                       -
Other liabilities                                                                          -                       -
   Total liabilities                                                                 597,320              17,023,933
                                                                                  ----------             -----------
Mandatorily redeemable preferred stock:
 Series A, mandatorily redeemable 10% cumulative preferred                         7,788,969               4,144,340
  stock, no par value, 5,000 shares authorized, 750 and 367,
  shares issued and outstanding, respectively (liquidation
  preference of $4,144,340 as of December 31, 1997)
 Commitments and contingencies
 Shareholders' equity (deficit):
 Class A common stock, no par value. 125,000 shares authorized;                        2,000                     856
  12,500 and 4,834 shares issued and outstanding, respectively
 Class B common stock, no par value, 175,000 shares authorized;                            -                       -
  5,104 and 1,974 shares issued and outstanding, respectively
</TABLE>

                  The accompanying notes are an integral part
                         of these financial statements

                                       19
<PAGE>

<TABLE>
<S>                                                                               <C>                    <C>
 Class C common stock, no par value, 175,000 shares authorized;                            -                       -
  25,520 and 12,527 shares issued and outstanding, respectively.
 Deficit accumulated during development stage                                       (813,927)             (4,874.654)
                                                                                  ----------             -----------
   Total shareholders' equity (deficit)                                             (811,927)             (4,873,798)
                                                                                  ----------             -----------
   Total liabilities and shareholders' equity (deficit)                           $7,574,352             $16,294,475
</TABLE>

                  The accompanying notes are an integral part
                         of these financial statements

                                       20
<PAGE>

                          TELECORP HOLDING CORP.. INC.
                        (A Development Stage Enterprise)
                            STATEMENTS OF OPERATIONS
                               _________________

<TABLE>
<CAPTION>
                                        For the period July 29,                                Cumulative for the period
                                          1996 (inception) to          For the year ended      July 28, 1995 (inception)
                                           December 31, 1996           December 31, 1997          to December 31, 1997
                                     -----------------------------------------------------------------------------------
<S>                                     <C>                            <C>                     <C>
Revenue                                                $       -                 $         -                 $         -
                                                       ----------                -----------                 -----------
 Expenses:
 Selling and Marketing                                     9,747                     304,062                     313,809
General and administrative                               515,221                   2,647,660                   3,162,881
                                                       ---------                 -----------                 -----------
   Total operating expenses                              524,968                   2,951,722                   3,476,690
                                     -----------------------------------------------------------------------------------

Other (income) expense:
 Interest income                                               -                     (12,914)                    (12,914)
 Interest expense                                              -                     396,362                     396,362
                                     -----------------------------------------------------------------------------------
   Net loss                                            $(524,968)                $(3,335,170)                $(3,860,138)
                                     ===================================================================================
</TABLE>

                  The accompanying notes are an integral part
                         of these financial statements

                                       21
<PAGE>

                          TELECORP HOLDING CORP., INC.
                        (A Development Stage Enterprise)
             STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (DEFICIT)

<TABLE>
<CAPTION>
                                                                                  Deficit
                                                                                accumu-lated
                              Class A          Class B           Class C         during the
                              Common            Common           Common         develop-ment
                               Stock             Stock            Stock            stage
                               -----             -----            -----
                         Shares    Amount   Shares   Amount   Shares   Amount                     Total
<S>                      <C>      <C>       <C>      <C>     <C>       <C>     <C>             <C>
Initial capitalization    8,750   $ 2,000        -        -        -        -$   $         -   $     2,000
Issuance of common
 stock                    3,750         -    5,104        -   25,250        -              -             -
Accretion of preferred
 stock dividends              -         -        -        -        -        -       (288,959)     (288,959)
Net loss                      -         -        -        -        -        -       (524,968)     (524,968)
                       -----------------------------------------------------------------------------------
Balance, December 31,
 1996                    12,500     2,000    5,104        -   25,520        -       (813,927)     (811,927)
Issuance of common
 stock                        -         -        -        -    6,875        -              -             -
Accretion of preferred
 stock dividends              -         -        -        -        -        -       (725,557)     (725,527)
Redemption of equity
 interests               (7,666)   (1,144)  (3,130)       -  (19,868)       -              -        (1,144)
Net loss                      -         -        -        -        -        -     (3,335,170)   (3,335,170)
Balance, December 31,
 1997                     4,834   $   856    1,974        -$  12,527        -$   $(4,874,654)  $(4,873,798)
                       ===================================================================================
</TABLE>


                 The accompanying notes are an integral part
                        of these financial statements.

                                       22
<PAGE>

                          TELECORP HOLDING CORP., INC.

                        (A Development Stage Enterprise)

                            STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                            For the period July       For the year ended         Cumulative for the
                                           29, 1996 (inception)        December 31, 1997       period July 29, 1996 to
                                           to December 31, 1996                                   December 31, 1997
- ----------------------------------------------------------------------------------------------------------------------
<S>                                        <C>                        <C>                      <C>
Cash flows from operating activities:
- ----------------------------------------------------------------------------------------------------------------------
 Net loss                                            $  (524,968)               $(3,335,170)               $(3,860,138)
- ----------------------------------------------------------------------------------------------------------------------
 Adjustment to reconcile net loss to
  net cash used in operating activities:
- ----------------------------------------------------------------------------------------------------------------------
  Depreciation expense                                        75                     10,625                     10,700
- ----------------------------------------------------------------------------------------------------------------------
  Non-cash capitalized interest                                -                   (131,397)                  (131,397)
- ----------------------------------------------------------------------------------------------------------------------
  Amortization of discount on notes
   payable                                                     -                    134,040                    134,040
- ----------------------------------------------------------------------------------------------------------------------
 Increase (decrease) in cash flow from
  operating activities resulting from
  changes in assets and liabilities
- ----------------------------------------------------------------------------------------------------------------------
  Other current assets                                   (21,877)                   (51,591)                   (73,468)
- ----------------------------------------------------------------------------------------------------------------------
  Other assets                                                 -                    (26,673)                   (26,673)
- ----------------------------------------------------------------------------------------------------------------------
  Accounts payable                                        98,570                    618,889                    717,459
- ----------------------------------------------------------------------------------------------------------------------
  Accrued interest                                             -                    389,079                    389,079
- ----------------------------------------------------------------------------------------------------------------------
  Other liabilities                                            -                          -                          -
- ----------------------------------------------------------------------------------------------------------------------
  Current microwave relocation
   obligation                                                  -                          -                          -
- ----------------------------------------------------------------------------------------------------------------------
   Net cash used in operating activities                (448,200)                (2,392,198)                (2,840,398)
- ----------------------------------------------------------------------------------------------------------------------
Cash flows from investing activities:
- ----------------------------------------------------------------------------------------------------------------------
 Expenditures for property and equipment                    (904)                (1,134,234)                (1,135,138)
- ----------------------------------------------------------------------------------------------------------------------
 Deposit on PCS licenses                              (7,500,000)                         -                 (7,500,000)
- ----------------------------------------------------------------------------------------------------------------------
 Partial refund of deposit on PCS                              -                  1,561,702                  1,561,702
  licenses
- ----------------------------------------------------------------------------------------------------------------------
   Net cash (used in) provided by                     (7,500,904)                   427,468                 (7,073,436)
    investing activities
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>

                 The accompanying notes are an integral part
                        of these financial statements.

                                       23
<PAGE>

<TABLE>
<CAPTION>

<S>                                                     <C>                       <C>                        <C>
- -----------------------------------------------------------------------------------------------------------------------------
Cash flows from financing activities:
- -----------------------------------------------------------------------------------------------------------------------------
   Proceeds from sale of Series A                        7,500,000                  1,500,000                  9,000,000
   preferred stock
- -----------------------------------------------------------------------------------------------------------------------------
   Proceeds from sale of common stock                        2,000                          -                      2,000
- -----------------------------------------------------------------------------------------------------------------------------
   Proceeds from issuance of notes payable                 498,750                  2,808,500                  3,307,250
- -----------------------------------------------------------------------------------------------------------------------------
   Net increase in amounts payable to                            -                    171,269                    171,269
   affiliates
- -----------------------------------------------------------------------------------------------------------------------------
     Net cash provided by financing                      8,000,750                  4,479,769                 12,480,519
     activities
- -----------------------------------------------------------------------------------------------------------------------------
     Net increase in cash and cash                          51,646                  2,515,039                  2,566,685
     equivalents
- -----------------------------------------------------------------------------------------------------------------------------
Cash and cash equivalents at the                                 -                     51,645                          -
beginning of period
- -----------------------------------------------------------------------------------------------------------------------------
Cash and cash equivalents at the end of                 $   51,646                $ 2,566,685                $ 2,566,685
 period
- -----------------------------------------------------------------------------------------------------------------------------
   Supplemental disclosure of non-cash                  $        -                $ 2,484,836                $ 2,484,836
   investing and financing activities:
   Network under development
     and microwave relocation
     costs financed through
     accounts payable
- -----------------------------------------------------------------------------------------------------------------------------
   U.S. Government financing                            $        -                $ 9,192,938                $ 9,192,938
- -----------------------------------------------------------------------------------------------------------------------------
   Discount on U.S. Government financing                $        -                $ 1,599,656                $ 1,599,656
- -----------------------------------------------------------------------------------------------------------------------------
   Conversion of notes payable to                       $        -                $   498,750                $   498,750
   shareholders into preferred stock
- -----------------------------------------------------------------------------------------------------------------------------
   Accretion of preferred stock dividends               $  288,958                $   725,557                $ 1,014,516
- -----------------------------------------------------------------------------------------------------------------------------
   Redemption of equity interests                       $        -                $ 6,368,926                $ 6,368,926
- -----------------------------------------------------------------------------------------------------------------------------
   Distribution of net assets to                        $        -                $ 3,644,602                $ 3,644,602
   affiliates
- ------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                  The accompanying notes are an integral part
                         of these financial statements

                                       24
<PAGE>

1.   Organization

                    TeleCorp Holding Corp,. Inc., (the Company) was incorporated
          in the State of Delaware on July 29, 1996 (date of inception). The
          Company intends to design, build, own and operate broadband Personal
          Communications Services (PCS) in its licensed regions. The Company
          participated in the Federal Communications Commissions' (FCC) Auction
          of F Block PCS licenses (the Auction) in April 1997 and successfully
          obtained licenses in the New Orleans, Memphis, Beaumont, Little Rock,
          Houston, Tampa, Melbourne and Orlando Basic Trading Areas (BTAs).  The
          Company qualifies as a Designated Entity and Very Small Business under
          Part 24 of the rules of the FCC applicable to broadband PCS.

                    In April 1997, the Company and its shareholders agreed to
          the transfer of PCS licenses for the Houston, Tampa, Melbourne and
          Orlando BTAs to form newly-formed entities created by the Company's
          existing shareholder group: THC of Houston, Inc.; THC of Tampa, Inc.;
          THC of Melbourne, Inc.; and THC of Orlando, Inc. pending final FCC
          approval which occurred in August of 1997. These licenses were
          transferred along with the related operating assets and liabilities of
          these entities in exchange for investment units consisting of Class A,
          B and C common stock and Series A preferred stock.  Concurrently, the
          Company distributed the investment units, on a pro rata basis, in a
          partial stock redemption to the Company's existing shareholder group.
          As a result of this distribution, the Company no longer retains any
          ownership equity interest in the newly formed entities. Because the
          above transaction was non-monetary in nature and occurred between
          entities with the same shareholder group, the transaction was
          accounted for at historical cost.


2.   Summary of Significant Accounting Policies

          Development Stage Company
          -------------------------

                    The Company's activities to date principally have been
          planning and participation in the Auction, initiating research and
          development, conducting market research, securing capital and
          developing its proposed service and network.  Accordingly, the
          Company's financial statements are presented as a development stage
          enterprise, as prescribed by Statement of Financial Accounting
          Standards No. 7, "Accounting and Reporting by Development Stage
          Enterprises."  Since the Auction, the Company has been relying on the
          borrowing of funds and

                                       25
<PAGE>

          the issuance of common and preferred stock rather than recurring
          revenues, for its primary sources of cash flow.


          Use of Estimates
          ----------------

                    The preparation of financial statements in conformity with
          generally accepted accounting principles requires management to make
          estimates and assumptions that affect the reported amounts of assets
          and liabilities and disclosure of contingent assets and liabilities on
          the date of the financial statements and the reported amounts of
          expenses during the reporting period.  Actual results could differ
          from those estimates.


          Concentration of Credit Risk
          ----------------------------

                    Financial instruments that potentially subject the Company
          to concentrations of credit risk consist principally of cash and cash
          equivalents.  The Company has invested its excess cash in a money
          market account with a commercial bank.  The underlying assets of the
          fund collateralize these investments.  The money market account
          invests in U.S. Government securities.  The Company has not
          experienced any losses on its cash and cash equivalents.


          Cash Equivalents
          ----------------

                    The Company considers all highly liquid instruments with an
          original maturity of three months or less to be cash equivalents.


          Licenses and Microwave Relocation
          ---------------------------------

                    As a condition of each PCS license, the FCC requires each
          license-holder to relocate existing microwave users (Incumbents)
          within the awarded spectrum to microwave frequencies of equal
          strength.  Microwave relocation costs will include the actual and
          estimated costs incurred to relocate the Incumbents microwave links
          affecting the Company's licensed frequencies an dare presented in the
          financial statements at the estimated value of the project cost.

                    PCS licenses also include costs incurred, including
          capitalized interest related to the U.S. Government financing, to
          acquire FCC licenses on frequency block F in the 1850-1990 MHz radio
          frequency band.  Interest

                                       26
<PAGE>

          capitalization begins when the activities necessary to get the PCS
          network ready for its intended use are in progress. For the year ended
          December 31, 1997, the Company capitalized $131,397 of interest cost.

                    The PCS licenses are issued conditionally for ten years.
          Historically, the FCC has granted license renewals providing the
          licensees have complied with applicable rules, policies and the
          Communications Act of 1934, as amended.  The Company believes it had
          complied with and intends to continue to comply with these rules and
          policies.

                    The Company will amortize the cost of the PCS licenses and
          microwave relocation costs on a straight-line basis over 40 years at
          the time PCS services commence, which is expected to be in early 1999
          for certain BTAs.


          Property and Equipment and Network Under Development
          ----------------------------------------------------

                    Property and equipment are recorded at cost and depreciated
          on the straight-line method over three to ten years based upon
          estimated useful lives.


                    Network under development, includes all costs of
          engineering, cell site acquisition, site development, capitalized
          interest and other development costs being incurred, to ready the PCS
          network for use.  Network under development will be depreciated over
          its estimated useful life.



          Long-Lived Assets
          -----------------

                    The Company periodically evaluates the recoverability of the
          carrying value of the property and equipment, network under
          development, intangible assets and PCS licenses. The Company considers
          historical performance and anticipated future results in its
          evaluation of potential impairment.  Accordingly, when indicators of
          impairment are present, the Company evaluates the carrying value of
          these assets in relation to the operating performance of the business
          and future and undiscounted cash flows expected to result from the use
          of these assets.  Impairment losses are recognized when the sum of
          expected future cash flows are less than the assets' carrying value.
          No such impairment losses have been recognized to date.


          Income Taxes
          ------------

                                       27
<PAGE>

                    The Company accounts for income taxes in accordance with the
          liability method.  Deferred income taxes are recognized for tax
          consequences in future years for differences between the tax bases of
          assets and liabilities and their financial reporting amounts at each
          year-end, based on enacted laws and statutory tax rates applicable to
          the periods in which the differences are expected to affect taxable
          income.  Valuation allowances are established when necessary, to
          reduce net deferred tax assets to the amount expected to be realized.
          The provision for income taxes consists of the current tax provision
          and the change during the period in deferred tax assets and
          liabilities.

                                       28
<PAGE>

                         NOTES TO FINANCIAL STATEMENTS

               Start-Up and Advertising Costs
               ------------------------------

                    Start-up and advertising costs are expensed as incurred.

3.   Property and Equipment

                    Property and equipment consists of the following as of
December 31,

<TABLE>
<CAPTION>
                                                                1996                 1997
                                                            ---------------------------------
               <S>                                          <C>                   <C>
               Network under development                        $   -             $3,269,793
               Computer and office equipment                      904                328,875
               Furniture and fixtures                               -                 21,306
                                                            ---------------------------------
                                                                  904              3,619,974
               Accumulated depreciation                           (75)               (10,700)
                                                            ---------------------------------
                                                                $ 829             $3,609,274
                                                            =================================
</TABLE>

4.   Notes Payable

                    Notes payable consists of the following as of December 31,

<TABLE>
<CAPTION>
                                                                1996                 1997
                                                            ----------------------------------
               <S>                                          <C>                   <C>
               U.S. Government financing                        $      -          $ 9,192,938
               Less: discount on U.S.                                  -           (1,465,616)
               Government financing
                                                            ----------------------------------
                                                                $      -          $ 7,727,322
                                                            ==================================
               Notes payable to shareholders                    $498,750          $ 2,808,500
                                                            ==================================
</TABLE>

                                       29
<PAGE>

          U.S. Government Financing
          -------------------------

                    In 1996, the Company placed $7,500,000 on deposit with the
          FCC in order to bid on F Block broadband PCS licenses. The funding for
          the deposit was obtained from the issuance of common and preferred
          stock in August 1996 (see Note 5). In April 1997, the Company's
          application for the PCS licenses was approved. The Company made a down
          payment of $5,942,835 using the funds from the FCC deposit and issued
          promissory notes to the FCC for $23,771,342. The balance of the
          Company's deposit of $1,557,165 was refunded in April 1997. The terms
          of the notes include: interest rate of 6.25% quarterly interest
          payments which commence in July 1998 for the two years thereafter,
          then quarterly principal and interest payments for the remaining 8
          years. The notes were discounted using managements best estimate of
          the prevailing market interest: rate of 10.25%. The promissory notes
          are collateralized by the underlying PCS licenses.
              ---------------

                    In August 1997 upon final approval by the FCC, certain of
          the PCS licenses with a cost of $15,678,814 and related US Government
          financing in the amount of $12,034,212 were transferred to four newly-
          formed entities created by the Company's existing shareholder group
          (See Notes 1 and 8).

          Notes Payable to Shareholders
          -----------------------------

                    In July 1996, the Company issued $498,750 of subordinated
          promissory notes to two shareholders.  The notes bear interest at a
          rate of 10%, compounded semi-annually; and are dull in full in, July
          2OO2. In April 1997, these notes were converted into 50 shares of
          Series A preferred stock (See Note 5).

                    In December 1997, the Company issued various promissory
          notes to shareholders. The notes bear interest at a rate of 6.00% and
          are due in full in July 1998.  The notes were discounted using
          management's best estimate of the prevailing market interest rate of
          10.25%.  The effect on the 1997 financial statement of discounting
          these notes was not material.  The notes payable are collateralized by
          all of the Company's assets.

               Maturities of all notes payable (undiscounted) as of December 31,
          1997 are as follows:

                                       Amount
                                       ------
                    1998               $ 2,808,500
                    1999                   450,719

                                       30
<PAGE>

                    2000                   944,470
                    2001                 1,004,898
                    2002                 1,069,191
                    Thereafter           5,723,660
                                       -----------
                                       $12,001,438
                                       -----------

5.   Shareholders' Equity

          Preferred Stock
          ---------------

                    The Series A preferred stock has a cumulative annual
          dividend right equal to 10% of the sum of the Series A preferred stock
          plus all accrued and unpaid dividends compounded annually.  In the
          event of any voluntary or involuntary liquidation, dissolution or
          winding up of the Company, the holders of the Series A preferred stock
          shall be entitled to receive, prior and in preference to any
          distribution of any assets of the Company to the holders of Class A, B
          and C common stock, an amount of $10,000 per share plus all accrued
          and unpaid dividends.  The Company shall have the right to call all or
          any shares of the Series A preferred stock at anytime for $10,000 per
          share plus all accrued and unpaid dividends.  At any time after August
          31, 2002 each holder of Series A preferred stock may elect, by written
          notice to the Company, to redeem a specified number of shares at a
          price equal to $10,000 per share plus all accrued and unpaid
          dividends.  Since the Series A preferred stock is mandatorily
          redeemable at the option of the holder, the Company accretes the 10%
          dividend right.  For the period ended December 31, 1996 and for the
          year ended December 31, 1997 the cumulative accretion of preferred
          stock dividends was $288,959 and $1,014,516, respectively.  Activity
          related to the preferred stock for the period July 29, 1996
          (inception) to December 31, 1996 and the year ended December 31, 1997
          is as follows:

<TABLE>
<CAPTION>
                                                    Series A Preferred Stock
                                                    ------------------------
                                                     Shares               Amount
                                                    -----------------------------------
<S>                                                 <C>                   <C>
Issuance of preferred stock                                  750          $ 7,500,000
Accretion of  preferred stock dividends                        -              288,959
                                                    -----------------------------------
Balance, December 31, 1996                                   750            7,788,959
Issuance of preferred stock                                  150            1,500,000
Conversion of promissory note to preferred stock              50              498,750
Accretion of preferred stock dividends                         -              725,557
Redemption of equity interests                              (583)          (6,368,926)
                                                    -----------------------------------
Balance, December 31,1997                                    367            4,144,340
                                                    ===================================
</TABLE>


                                       31
<PAGE>

Common Stock
- ------------

Each class of common stock shall have equal dividend and liquidation rights
subject to the rights and preferences of the holders of the preferred stock.
Dividends may be declared and paid on the common stock from funds legally
available as and when determined by the Board of Directors. The Class A common
stock shall have 5,010,000 voting rights, the Class B common stock shall have no
voting rights and the Class C common stock shall have 4,990,000 voting rights.
Each holder of Class C common stock shall be entitled at any time to convert any
and all of the shares into the same number of shares of Class B common stock
upon the occurrence of certain defined regulatory events.  Each holder of Class
B common stock shall be entitled at any time to convert any or all of the shares
into the same number of shares of Class C common stock upon a conversion event,
as defined. Because the Series A preferred stock contains preferences that are
significantly more than the Company's net worth, only nominal or no value has
been ascribed to the common stock.

Control Group Options
- ---------------------

In order to maintain its Designated Entity status, the Company has reserved for
issuance options to purchase shares of Class A common stock for each holder of
Class A common stock pro rata to their respective holdings, in connection with
future sales of the Company's common stock, in such amount as necessary for
management to hold not less than 60% of such Class A common stock (except that
after the third anniversary of the grant of the PCS licenses management's
ownership may be reduced to 40%).  The options will be exercisable at any time
within 10 years from the date of grant at an exercise price equal to the price
per share of the common stock the issuance of which triggers such options.  As
of December 31, 1997, no options have been granted.

6.   Income Taxes

     The tax effect of the temporary difference that gives rise to significant
portions of the deferred tax assets as of December 31, 1996 and 1997,
respectively, are as follows:


                                                  1996           1997
                                                  ----           ----

Capitalized organization costs                 $ 199,500     $ 1,267,400
                                               ---------     -----------
                                                 199,500       1,267,400
Less valuation allowance                        (199,500)     (1,267,400)
                                               ---------     -----------

                                       32
<PAGE>

                                  $           $
                                  =========== ==========


          Capitalized organization costs include expenses incurred, in the
organization and start-up of the Company.  For federal income tax purposes,
these costs will be amortized over five years once active business operations
commence.

                                       33
<PAGE>

7.   Commitments

          The Company has operating leases primarily related to the rental of
office space.  As of December 31, 1997, the aggregate minimum rental commitments
under noncancelable operating leases are as follows:


                    1998              $219,411
                    1999               222,916
                    2000               231,832
                                      --------
                    Total             $674,159
                                      ========

     Rental expense, which is recorded ratably over the lease terms, was
approximately $2,000 and $157,000 for the period ending December 31, 1996 and
the year ended December 31, 1997, respectively.

          Upon commencement of operations, the Company expects to pay Incumbents
approximately $25,415,000 for equipment and installation costs in connection
with the microwave relocation services.

8.   Related Parties

          The Company utilizes the services of a law firm in which the President
of the Company is also a partner.  The Company paid the law firm approximately
$110,000 and $250,000 for the period ended December 31, 1996 and for the year
ended December 31, 1997, respectively, for legal services.  As of December 31,
1996 and 1997, the Company owed the law firm $0 and $70,464, respectively.
Subsequent to year-end, the individual resigned from the law firm.

          The Company receives site acquisition, construction management,
program management, microwave relocation, and engineering services pursuant to a
Master Service Agreement with Entel Technologies, Inc. (Entel).  The Chief
Executive Officer and the President of the Company are shareholders and the
Chief Executive Officer is a senior officer of Entel.  Fees for the above
services are as follows:  $12,000 per site for site acquisition services, $7,000
per site for construction management services, $9,000 per site for program
management and $1,100,000 for microwave relocation services.  The microwave
relocation services obligation is recorded on the balance sheet as of January
21, 1998 since clearing has been initiated.  Fees for engineering services are
based upon Entel's customary hourly rates.  For the period ended December 31,
1996 and for the year ended December 31, 1997, the Company paid $30,829 and

                                       34
<PAGE>

$440,375, respectively, to Entel for these services.  As of December 31. 1996
and 1997, the Company owed Entel $57,478 and $170,596, respectively.  In
addition, Entel processes the payroll for all of the Company's employees for
which the Company does not incur a fee.  No amounts have been expensed for
payroll processing services provided by Entel because they are not estimable.
Subsequent to year end, the Chief Executive Officer and President sold 100% of
their interests in Entel.

          As of December 31, 1997, the Company had notes payable to affiliates
of $2,072,573.  The notes represent the difference of the recorded historical
costs of the assets, liabilities and equity interests distributed to THC
Houston, Inc.; THC of Tampa, Inc.; THC of Melbourne, Inc.; and THC of Orlando,
Inc. (see Note 1), and were originally comprised of the following:


                                         Due (to) from
                                         -    amount
                                         --------------

          PCS licenses                   $ 15,678,814
          U.S. Government financing      $(12,034,212)
          Equity interests                 (6,370,070)
                                         ------------
               Total                     $ (2,725,468)
                                         ============

          In connection with the transfer of the PCS licenses, US Government
financing and equity interests, the Company reduced the notes payable to
affiliates by $652,895, which represents certain costs incurred by the Company
on behalf of the affiliates for the year ended December 31, 1997 pursuant to
Transfer Agreements and Management Agreements.  Therefore, as of December 31,
1997, the combined amounts owed to THC Houston, Inc., THC Tampa, Inc., THC
Melbourne, Inc, and THC Orlando, Inc. was $2,072,573.  These amounts were
converted to notes payable due on demand bearing interest at the prime rate.

                                       35
<PAGE>

          As of December 31, 1997, the Company had amounts payable of $824,164
to TeleCorp WCS, Inc. (WCS), a newly formed entity created by the Company's
existing shareholder group in 1997.  The amount payable to WCS represents
$1,200,000 of funds received by the Company on behalf of WCS related to Wireless
communications Service licenses owned by WCS reduced by expenses and other
payments owed by WCS to the Company.

9.   Subsequent events

     Commitments
     -----------

          In March 1998, the Company entered into it short term sublease
agreement for office space through December 31, 1998. The terms of the agreement
include a security deposit of $33,500 and monthly rent, payable in advance, of
$33,500 per month.  The security deposit is to be held in a non-interest bearing
account, and returned 30 days after sublease termination.

          In June 1998 the Company entered into a 10 year operating lease for
office space.  The terms of the agreement require the Company to obtain a letter
of credit for $1,200,000, which may be reduced by 20% at the end of each year.
The Company is responsible for its proportionate share of property taxes and
operating expenses.  Base rent increases on from 2% to 6% annually, as defined
by the lease agreement.

          In 1998, the Company entered into several 10 year operating lease
agreements for Multiple Switching Centers (MSC).  The terms of the leases
require the Company to obtain letters of credit ranging from S100,000 to
$300,000 and base rent increases in year 6 from 10% to 15%.  The combined
monthly payments for these leases is approximately $26,500.

          The Company entered into numerous operating leases for cell sites
subsequent to year end.  Lease terms range from 3 to 10 years.  Most of the
leases provide the Company with renewal options and generally require the
Company to pay for utilities, taxes, insurance and maintenance costs, in
addition to base rent which generally increase 3% to 5% per annum after the
first year.  Generally, these leases commence upon installation of

                                       36
<PAGE>

equipment, accordingly, most leases have not commenced.  As of July 15, 1998
future minimum lease commitments of commenced leases total $6,042,000.

Financing
- ---------

          During the six month period ended June 30, 1998, the Company borrowed
approximately $22,500,000 in the form of promissory notes from existing and
prospective shareholders to satisfy the working capital needs of the Company.
The promissory notes bear interest at the rate of 6.25% per annum compounded
quarterly and are payable in one lump sum on August 31, 1998.  These funds are
creditable against the $128,000,000 cash commitment in connection with the
proposed AT&T Transaction described below.

AT&T Transaction
- ----------------

          In January 1998, the Company shareholders entered into a strategic
venture with TeleCorp PCS, Inc. (the Venture), AT&T Corporation and its
affiliates (AT&T), and various other venture capital investors (VC Investors)
for the purpose of providing broadband PCS services in the New Orleans, Houston,
Louisville, St. Louis, Little Rock, Memphis and Boston PCS major trading areas
(MTA).  In exchange for an ownership interest in the Venture:  (1) the Company's
shareholders will contribute 100% of their ownership interests in the Company,
(ii) AT&T will contribute PCS licenses in the aforementioned MTAs, the use of
the AT&T service marks and a roaming agreement, and (iii) the VC Investors will
commit to contribute $128,000,000 in cash.  The ownership interests will be
comprised of various classes of voting and non-voting common stock various
series of preferred stock and common tracking stock.  As a result of the above
transaction, the Company will become a wholly-owned subsidiary of the Venture.
The effective date of the Venture is anticipated to be July 15, 1998.

          The Company is finalizing an independent appraisal of the value of the
AT&T PCS contributed licenses which will be amortized over 40 years once
wireless service is ready to commence along with an appraisal for the use of the
AT&T service marks, an intercarrier roaming agreement and a exclusivity
arrangement.

Lucent Agreements
- -----------------

          In May 1998, the Venture entered into a supply agreement with Lucent
Technologies, Inc. (Lucent) whereby the Venture has agreed to purchase from
Lucent radio, switching and network equipment and services up to $285,000,000
for the construction of its PCS networks over a five year period commencing in
1998.  The Venture may defer payment on all Lucent equipment and services
purchased by the Venture until the earlier of September

                                       37
<PAGE>

30,1998 or the initial closing of a senior credit facility. In addition, Lucent
has agreed to provide $40,000,000 of extended payment terms in the form of a
line-of-credit for purchase of Lucent equipment and services. Interest and
principal will be due at maturity with mandatory redemption of all balances upon
the earlier of a senior debt closing or September 30,1998.

          The Venture will have the ability to issue to Lucent increasing rate
8.5% Series A and 10.0% Series B Junior. Subordinated Bonds (the Bonds), with an
aggregate face value of $95,000,000, subject to adjustment up to $160,000,000
based upon the occurrence of certain defined events, pursuant to a May 1998 note
purchase agreement.  The Bonds will be subject to a final maturity no later than
January 2012, subject to an earlier maturity date upon the occurrence of certain
defined events.

          Lucent's commitment to provide financing is conditioned upon the
occurrence of certain events, including but not limited to the Venture's ability
to obtain a commitment for a senior credit facility of at least $525,000,000,
the closing of the supply agreement, the transfer of certain PCS licenses by
AT&T Wireless PCS, Inc. to the Venture and the receipt of at least $128,000,000
of equity commitments from investors.  In June 1998, the Venture borrowed
$10,000,00 of the 8.5% Series A Junior Subordinated Bonds.

Senior Secured Credit Facilities
- --------------------------------

The Venture is currently negotiating with Chase Securities, Inc., TD Securities
USA, and Bankers Trust Company to provide up to S525,000,000 of senior secured
credit facilities (the Facilities) to the Venture.  Proceeds of the Facilities
will be used to fund capital expenditures related to the construction of the
Venture's PCS System; acquisitions of PCS sites, certain AT&T PCS licenses and
working capital.  The Facilities will consist of three tranches in the form of a
$150,000,000 Revolving Credit Note, a $150,000,000 Term Loan A, and a
$225,000,000 Term Loan B.

          The initial interest rate on the Revolving Credit Note and Term Loan A
will be LIBOR plus 275 basis points.  The interest rate on the Term Loan B will
be fixed at LIBOR plus 325 basis points.  The initial commitment fee on the
available, but unused, portion of the Facilities will be 125 basis points.  The
commitment fee will decrease based on usage under the Revolving Credit and Term
Loan A.  If the Venture issues high-yield subordinated debentures of at least
$220,000,000 within 12 months of closing the Facilities, the spreads applicable
to the Facilities will be reduced 25 basis points.

                                       38
<PAGE>

          In addition, borrowing under the Facilities will be subject to a
maximum Senior Debt to Total Capital, as defined, ratio of 50%, provided that if
(i) all unfunded commitments have been contributed in full in cash and (ii)
minimum covered POPs meet or exceed 60% of the aggregate number of POPs within
the Licensed Area, then the ratio increases to 55%. Upon completion of a high
yield issuance of at least $220 million, the Facilities will be subject to a
maximum Total Debt to Total Capital ratio of 70%.  Once certain specified
operating benchmarks are achieved, the Facilities will be fully available
without regard to the Total Debt to Total Capital Ratio.

          The Term Loan A and B will be amortized in quarterly installments of
principal commencing approximately four years after the closing date;
commitments under the Revolving Credit will automatically reduce in quarterly
installments of principal commencing approximately six and one half years after
the closing date.  Commencing with the year ended December 31,2001, 50% of the
Venture's excess cash flow will be applied ratably to reduce commitments under
the Revolving Credit and to prepay portions of Term Loan A and Term Loan B.

     All obligations of the Venture under the Facilities will be unconditionally
and irrevocably guaranteed by each of its existing and subsequently acquired
domestic subsidiaries. The Facilities will be secured by substantially all the
assets of the Venture, including (i) a first priority pledge of all the capital
stock held by the Venture or any subsidiary of the Venture and (ii) perfected
first priority security interest in, and mortgages on, all tangible and
intangible assets of the Venture and its subsidiaries. Venture's equity
subscription agreements and the contracts associated therewith will also be
assigned as security to the Lenders. The closing of the Facilities is pending
the closing of the AT&T Transaction.

Acquisitions
- ------------

     On May 15, 1999, the Venture signed an agreement to acquire four additional
F Block PCS licenses in the Baton Rouge, Houma, Hammond and Lafayette, Louisiana
BTAs from Mercury PCS II, L.L.C., an AT&T affiliate for estimated total
consideration of $6,400,000.  The total consideration is comprised of 2,332
shares of Series C Preferred Stock and 2,269 shares of Class A Voting Common
Stock with an estimated value of $2,300,000 and the assumption of FCC debt of
$4,100,000.  The final closing of this transaction is pending approval by the
FCC.  In addition, upon the final closing of this acquisition, the VC Investors
will contribute an additional $5,000,000 of capital to the Venture in exchange
for preferred and common stock.

                                       39
<PAGE>

                            CORRECTION TO AGREEMENT

          This Correction to Agreement entered into as of July 17, 1998 (this
"Correction') is by and among AT&T Wireless PCS Inc., a Delaware corporation
("AT&T PCS"), TWR Cellular, Inc., a Maryland corporation ("TWR"), the Cash
  ---------                                                ---
Equity Investors, the TeleCorp Investors, the Management Stockholders and
TeleCorp PCS, Inc., a Delaware corporation (the "Company" and, together with
                                                 -------
AT&T PCS, TWR, the Cash Equity Investors, the TeleCorp Investors, and the
Management Stockholders, the "Parties").  AT&T PCS, TWR, the Cash Equity
Investors and TeleCorp Investors are sometimes referred to herein as the
"Purchasers". Capitalized terms used but not defined herein shall have the
 ----------
meanings given to such terms in the Closing Agreement defined below.

          WHEREAS, the Parties entered into that certain Securities Purchase
Agreement, dated as of January 23, 1998 (the "Securities Purchase Agreement"),
                                              -----------------------------
pursuant to which the Purchasers acquired certain securities of the Company in
consideration of contributions of cash and/or other property to the capital of
the Company;

          WHEREAS, the Parties entered into that certain Agreement, dated as of
July 17, 1998 (the "Closing Agreement"), whereby Section 3 of the Closing
                    -----------------
Agreement amended the Securities Purchase Agreement by deleting Schedule V
thereto in its entirety and replacing it with Schedule V annexed to the Closing
Agreement ("Schedule V");
            ----------

     WHEREAS, the Parties have determined that Schedule V is incorrect in
certain respects; and

     WHEREAS, the Parties wish to correct Schedule V as set forth below.

          NOW, THEREFORE, in consideration of the premises and the mutual
promises and covenants herein contained, the Parties agree as follows:

          1.   Correction to Schedule V.  The Parties acknowledge and agree that
               ------------------------
Schedule V is hereby corrected, as of July 17, 1998, by deleting Schedule V in
its entirety and replacing it with Schedule V annexed hereto.

          2.   No Other Corrections; Full Force and Effect.  Except as expressly
               -------------------------------------------
corrected in Section I above, all other terms and conditions of the Closing
Agreement shall remain in full force and effect.

                                       40
<PAGE>

     3.   Miscellaneous.  This Correction embodies the entire agreement and
          -------------
understanding of the Parties relating to the subject matter hereof and
supersedes all prior agreements and understandings relating to such subject
matter.  This Correction may not be amended, changed, supplemented, waived or
other-wise modified except by an instrument in writing signed by each Party
against whom enforcement is sought.  This Correction shall be binding upon and
shall inure to the benefit of each Party and their permitted successors and
assigns.  Each Party will execute and deliver such further documents and take
such further actions as the other Parties may reasonably request consistent with
the provisions hereof in order to effect the intent and purposes of this
Correction.  The Parties hereby irrevocably and unconditionally consent to
submit to the non-exclusive jurisdiction of the courts of the State of New York
and of the United States of America located in the County of New York, New York,
(the "New York Courts") for any litigation arising out of or relating to this
      ---------------
Correction, waive any objection to the laying of venue of any such litigation in
the New York Courts and agree not to plead or claim in any New York Court that
such litigation brought therein has been brought in an inconvenient forum.  Any
provision of this Correction, which is prohibited or unenforceable in any
jurisdiction shall, as to such jurisdiction, be ineffective to the extent of
such prohibition, or unenforceability without invalidating the remaining
provisions hereof and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction. This Correction may be executed in any number of
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one instrument.

          IN WITNESS WHEREOF, the undersigned have executed this Correction as
of the date first above written.


                                     TELECORP PCS, INC.

                                     By: /s/ Gerald T. Vento
                                         ------------------------------
                                         Name: Gerald T. Vento
                                         Its: CEO


                                     AT&T WIRELESS PCS INC.

                                     By: /s/ William W. Hague
                                         ------------------------------
                                         Name: William W. Hague
                                         Its: Senior Vice President


                                     TWR CELLULAR INC.

                                     By: /s/ Michael R. Hannon
                                         ------------------------------
                                         Name: Michael R. Hannon
                                         Its: General Partner

                                       41
<PAGE>

Cash Equity Investors:

                                     CB CAPITAL INVESTORS, L.P.

                                     By: /s/ Michael R. Hannon
                                         ------------------------------
                                         Name: Michael R. Hannnon
                                         Its: General Partner


                                     NORTHWOOD VENTURES LLC

                                     By: /s/ Peter G. Schiff
                                         ------------------------------
                                         Name: Peter G. Schiff
                                         Its: President


                                     NORTHWOOD CAPITAL PARTNERS LLC

                                     By: /s/ Peter G. Schiff
                                         ------------------------------
                                         Name: Peter G. Schiff
                                         Its: President


                                     ONELIBERTY FUND III, L.P.

                                     By: /s/ Joseph T. McCullen, Jr.
                                         ------------------------------
                                         Name: Joseph T. McCullen, Jr.
                                         Its: General Partner


                                     ONELIBERTY FUND IV, L.P.

                                     By: /s/ Joseph T. McCullen, Jr.
                                         ------------------------------
                                         Name: Joseph T. McCullen, Jr.
                                         Its: General Partner

                                       42
<PAGE>

                                    HOAK COMMUNICATIONS PARTNERS, L.P.,

                                    By: HCP Investments, L.P.,
                                          its general partner

                                    By: Hoak Partners, LLC,
                                          its general partner

                                    By: /s/ James M. Hoak
                                        -----------------
                                          Name: James M. Hoak
                                          Its: Manager


                                    HCP CAPITAL FUND, L.P.

                                    By: James M. Hoak & Co.,
                                          Its General Partner

                                    By: /s/ James M. Hoak
                                       -----------------
                                          Name:  James M. Hoak
                                          Its: Manager

                                    ENTERGY TECHNOLOGY HOLDING COMPANY


                                    By: /s/ Stephen T. Refsell
                                        ----------------------
                                          Name: Stephen T. Refsell
                                          Its:  Vice President


                                    TORONTO DOMINION INVESTMENTS INC.

                                    By: /s/ Martha L. Gariepy
                                        ---------------------
                                          Name: Martha L. Gariepy
                                          Its:  Vice President

                                       43
<PAGE>

                                    WHITNEY EQUITY PARTNERS., L.P.

                                    By: J.H. Whitney Equity Partners L.L.C.,
                                          Its general partner

                                    By:  /s/ William Laverack, Jr
                                         ------------------------
                                          Name: William Laverack, Jr
                                          Its:


                              J.H. WHITNEY III, L.P.

                              By: J.H. Whitney Equity Partners III, L.L.C.,
                                   its general partner

                              By: /s/ William Laverack, Jr
                                  -------------------------
                                   Name: William Laverack, Jr
                                   Title:


                              WHITNEY STRATEGIC PARTNERS III, L.P.

                              By: J.H. Whitney Equity Partners III, L.L.C.,
                                   its general partner

                              By: /s/ William Laverack, Jr
                                  ---------------------
                                   Name: William Laverack, Jr
                                   Its:

                                       44
<PAGE>

                                    CB CAPITAL INVESTORS, L.P.

                                    By: CB Capital Investors, Inc.,
                                         its general partner

                                    By:  /s/ Michael R. Hannon
                                         ---------------------
                                           Name: Michael R. Hannon
                                           Its:  Vice President



                                    NORTHWOOD VENTURES LLC

                                    By: /s/ P.G. Schiff
                                        ---------------
                                        Name: P.G. Schiff
                                        Its: President


                                    NORTHWOOD CAPITAL PARTNERS LLC

                                    By: /s/ P.G. Schiff
                                        ---------------
                                        Name: Henry T. Wilson
                                        Its: President


                                             ONE LIBERTY FUND III, L.P.

                                             By:  /s/ Joseph T. McCullen Jr.
                                                  --------------------------

                                       45
<PAGE>

                                                   Name: Joseph T. McCullen, Jr.
                                                   Its:  General Partner


                                             ONELIBERTY FUND III, L.P.

                                             By:  /s/ Joseph T. McCullen, Jr.
                                                  -------------------------
                                                   Name: Joseph T. McCullen, Jr.
                                                   Its:  General Partner



                                   MEDIA./COMMUNICATIONS INVESTORS
                                   LIMITED PARTNERSHIP

                                   By: M/C Investors General Partner - J. Inc.,
                                       a general partner


                                   By:  /s/ James F. Wade
                                        -----------------
                                         Name: James F. Wade
                                         Its:  President


                                   MEDIA/COMMUNICATIONS PARTNERS III
                                   LIMITED PARTNERSHIP

                                   By: M/C III L.L.C.
                                       its general partner

                                   By:  /s/ James F. Wade
                                        -----------------
                                         Name:  James F. Wade
                                         Its:  Manager

                                       46
<PAGE>

                              ENTERGY TECHNOLOGY HOLDING COMPANY

                              By:  /s/ Stephen T. Refsell
                                   ----------------------
                                    Name:  Stephen T. Refsell
                                    Its:  Vice President

                                       47
<PAGE>

                                   GILDE INTERNATIONAL B.V.

                                   By:  /s/ Joseph McCullen, Jr.
                                        ------------------------
                                         Name: Joseph McCullen, Jr.
                                         Its:  Attorney-in-Fact


                                   TELECORP INVESTMENT CORP., LLC

                                   By:  /s/ Gerald T. Vento
                                        -------------------
                                         Name: Gerald T. Vento
                                         Its: CEO


                                   MANAGEMENT STOCKHOLDERS:

                                   GERALD T. VENTO

                                        Gerald T. Vento
                                       -------------------

                                   THOMAS H. SULLIVAN

                                        Thomas H. Sullivan
                                       -------------------

                                       48
<PAGE>


                              ENTERGY TECHNOLOGY HOLDING COMPANY

                              By:  /s/ Stephen T. Refsell
                                   ----------------------
                                    Name:  Stephen T. Refsell
                                    Its:  Vice President

                                       49


<PAGE>

                                                                   Exhibit 10.21


                              EMPLOYEE AGREEMENT

                                    BETWEEN


                              TELECORP PCS, INC.


                                      AND


                                STEVEN CHANDLER
<PAGE>

                               Table of Contents

<TABLE>
<S>                                                                                                     <C>
1.     Definitions..................................................................................     1

2.     Duties.......................................................................................     1

3.     Compensation.................................................................................     2

4.     Accrued Benefits.............................................................................     2

5.     Death........................................................................................     2

6.     Termination for Cause/Voluntary Termination..................................................     3

7.     Termination Giving Rise to a Termination Payment.............................................     3

8.     Confidential Information.....................................................................     3

9.     Covenant Not to Compete/Non-Solicitation/Limitation on Public Statements.....................     3

10.    Employee Representations.....................................................................     4

11.    Amendment....................................................................................     4

12.    Governing Law................................................................................     4

13.    Notice.......................................................................................     4
</TABLE>
<PAGE>

                              EMPLOYEE AGREEMENT
                              ------------------

          AGREEMENT, made and entered into as of this 17th day of July, 1998, by
and between TeleCorp PCS, Inc., a Delaware corporation (the "Company"), and
Steven Chandler, residing at 8129 Kimbrook Drive, Germantown, Tennessee 38138
(hereinafter called the "Executive").


                              W I T N E S E T H:
                              - - - - - - - - -

          WHEREAS, the Company desires to employ Executive as an EMPLOYEE-AT-
WILL to serve as General Manager, and the Executive desires to be employed at
will by the Company as General Manager;

          NOW, THEREFORE, in consideration of the premises, and the mutual
covenants and agreements hereinafter contained, the parties do hereby mutually
covenant and agree as follows:

          1.   Definitions.
               -----------

          (a)  Person. For the purposes of this Agreement, "Person" shall mean
               ------
any individual, partnership, joint venture, association, trust, corporation,
limited liability company or other entity.

          (b)  Cause.  "Cause" for termination by the Company of the Executive's
               -----
employment shall, for purposes of this Agreement, be limited to (i) the
Executive's engaging in misconduct which has caused demonstrable and serious
injury to the Company, financial or otherwise, or to the Company's reputation;
(ii) conviction of a felony or misdemeanor as evidenced by a judgment, order, or
decree of a court of competent jurisdiction; (iii) failure to comply with the
directions of the Board of Directors or neglect or refusal by the Executive to
perform the Executive's duties or responsibilities (unless such duties or
responsibilities are significantly changed without the Executive's consent); or
(iv) for any violation by Executive of this Agreement or of any agreement by and
among the Company and the Executive relating to Executive's participation in the
TeleCorp PCS, Inc. 1998 Restricted Stock Plan.

          (c)  Termination Date. For purposes of this Agreement, "Termination
               ----------------
Date" shall mean the date on which the Executive ceases to be employed by the
Company for any reason, including without limitation, death, termination or
resignation.

          2.   Duties.  For so long as Executive is employed by the Company, the
               ------
Executive shall hold the position of General Manager of the Company and shall
devote his full working time and attention to the performance of his duties
hereunder but nothing in this Agreement shall preclude the Executive from (i)
participating in charitable and community activities or (ii) subject to prior
approval of the Board of Directors of the Company, serving on the board of
directors of another company, provided that in each case such activities or
services
<PAGE>

do not materially interfere with the regular performance of his duties and
responsibilities under this Agreement. For so long as Executive is employed by
the Company, the Executive agrees to use all reasonable efforts, skills and
abilities to promote the Company's interests; to serve as an officer of the
Company; and to perform any duties (consistent with his status) as may be
assigned by the board of directors. NOTWITHSTANDING ANYTHING HEREIN TO THE
CONTRARY, THE EXECUTIVE IS AN EMPLOYEE-AT-WILL OF THE COMPANY AND HAS NO RIGHT,
WHETHER UNDER THIS AGREEMENT OR OTHERWISE, TO ANY CONTINUED EMPLOYMENT WITH THE
COMPANY.

          3.   Compensation. For so long as Executive is employed by the
               ------------
Company, the Executive shall be compensated as follows:

          (a)  Executive shall receive, at such intervals and in accordance with
the Company's customary payroll policies, an annual salary (the "Base Salary")
of One Hundred Thirty-Five Thousand Dollars ($135,000) for services rendered as
General Manager of the Company;

          (b)  the Executive shall be eligible to receive an annual bonus
commencing on December 31, 1998 in an amount up to 20% of Executive's Base
Salary for such calendar year, prorated for the number of months actually
employed, as determined by the Board of Directors of the Company in its
discretion, taking into consideration all relevant factors, including, without
limitation, the financial performance and development of the Company and the
Executive's role therein;

          (c)  the Company shall pay or reimburse the Executive for all
reasonable expenses actually incurred or paid by the Executive in the
performance of his services hereunder; and

          (d)  the Executive shall be included to the extent eligible thereunder
in any and all plans, if any, providing general benefits to the Company's
employees, including, but not limited to, group life insurance, hospitalization,
disability, medical, dental, and pension, and shall be provided any and all
other benefits and perquisites, if any, made available to other employees of
comparable status and position, at the expense of the Company on a comparable
basis.

          4.   Accrued Benefits. For purposes of this Agreement, the Executive's
               ----------------
Accrued Benefits shall be defined as and include the following amounts, payable
as described herein: (i) any and all Base Salary earned or accrued through the
Termination Date; (ii) reimbursement for any and all monies advanced by the
Executive without reimbursement in connection with Executive's employment for
reasonable and necessary expenses incurred by the Executive through the
Termination Date; and (iii) any and all other cash or non-cash benefits
previously earned or accrued but not paid through the Termination Date.

          5.   Death. If the Executive shall die while an employee of the
               -----
Company, the Executive's estate, heirs and beneficiaries shall receive only the
Executive's Accrued Benefits through the Termination Date. All family medical
benefits available to them under the

                                       2
<PAGE>

Company's benefit plans as in effect on the Termination Date shall be continued
for six (6) months after the Termination Date at the Company's expense.

          6.   Termination for Cause/Voluntary Termination. If the Executive's
               -------------------------------------------
employment is terminated for Cause, or if the Executive voluntarily terminates
the Executive's employment, then the Executive shall be entitled to receive only
Accrued Benefits.

          7.   Termination Giving Rise to a Termination Payment.
               ------------------------------------------------

          (a)  If the Executive's employment is terminated by the Company other
than for Cause, then the Executive shall be entitled to receive and the Company
shall promptly pay Accrued Benefits through the Termination Date, and the
Company further agrees that Executive shall be entitled to receive, and the
Company hereby agrees to pay to Executive, an amount equal to twelve month's of
Executive's then Base Salary (the "Termination Payment"). The Termination
Payment shall be payable to the Executive at such intervals in accordance with
the Company's normal payroll practices as if Executive remained in the employ of
the Company.

          (b)  If the Executive's employment is terminated by the Company other
than for Cause and the Executive is entitled to Accrued Benefits and the
Termination Payment, then the Executive shall continue to be covered at the
expense of the Company by the same or equivalent hospital, medical, and dental
coverage as Executive was covered by immediately prior to the Termination Date
for a period of twelve months.

          8.   Confidential Information. Executive shall during the Executive's
               ------------------------
employment with the Company and at all times thereafter, treat all confidential
material (as hereinafter defined) of the Company confidentially. Executive shall
not, without the prior written consent of the Company, disclose such
confidential material to any party, who at the time of such disclosure is not an
employee or agent of the Company. For the purposes hereof, the term
"confidential material" shall mean all information acquired by the Executive in
the course of the Executive's employment with the Company; provided, however,
that the term "confidential material" shall not include information which (i)
becomes generally available to the public other than as a result of a disclosure
by the Executive, (ii) was available to the Executive on a non-confidential
basis prior to his employment with the Company, or (iii) becomes available to
the Executive on a non-confidential basis from a source other than the Company.

          9.   Covenant Not to Compete/Non-Solicitation/Limitation on Public
               -------------------------------------------------------------
Statements. (a) For so long as the Executive is employed by the Company and for
- ----------
a period of one year after the Termination Date, the Executive shall not
compete, directly or indirectly, with the Company, including, without
limitation, by being employed by, or being an officer or director of, or
consultant to, any Person engaged in the same business then engaged in by the
Company, whereby the Executive performs services, or has reporting authority for
others providing services, within the Company's service area, or by being an
investor (representing more than a 5% equity interest) in a Person engaged in
the same business then engaged in by the Company in the Company's service area.

                                       3
<PAGE>

          (b)  For so long as the Executive is employed by the Company and for a
period of one year after the Termination Date, the Executive shall not interfere
with, disrupt or attempt to disrupt the relationship, contractual or otherwise,
between the Company and any customer, client, supplier, consultant or employee
of the Company.

          (c)  For a period of one year following the Termination Date, the
Executive shall limit any public statements concerning the Company to those
confirming the Company's prior employment of Executive.

          (d)  It is the desire and intent of the parties that the provisions of
this Section 9 shall be enforced to the fullest extent permissible under the
laws and public policies applied in each jurisdiction in which enforcement is
sought. Accordingly, if any particular portion of this Section 9 shall be
adjudicated to be invalid or unenforceable, this Section 9 shall be deemed
amended to delete therefrom the portion thus adjudicated to be invalid or
unenforceable, such deletion to apply only with respect to the operation of this
Section in the particular jurisdiction in which such adjudication is made.

          10.  Employee Representations. The employee represents and warrants to
               ------------------------
the Company as follows: (i) he is not under any obligation to any Person which
is inconsistent or in conflict with this Agreement or which would prevent, limit
or impair in any way the performance of his obligations hereunder; and (ii) he
has not disclosed and will not disclose to the Company, nor use for the
Company's benefit, any confidential information or trade secrets of any prior
employer or principal, unless and until such confidential information and trade
secrets have become public knowledge without the employee's participation, or
unless such disclosure is permitted by any agreement with such prior employer or
principal.

          11.  Amendment. The terms and provisions of this Agreement may be
               ---------
modified or amended only by written agreement executed by all parties hereto.

          12.  Governing Law. This Agreement and the rights and obligations
               -------------
hereunder shall be governed by and construed in accordance with the laws of the
Commonwealth of Virginia, without giving effect to the conflict of law
principles thereof.

          13.  Notice.  All notices, requests, consents and other communications
               ------
hereunder shall be in writing, shall be addressed to the receiving party's
address set forth below or to such other address as a party may designate by
notice hereunder, and shall be either (i) delivered by hand, (ii) telexed,
telecopied or made by facsimile transmission, (iii) sent by overnight courier,
or (iv) sent by certified or registered mail, return receipt requested, postage
prepaid.

     If to the Company:  TeleCorp PCS, Inc.
                         1101 17/th/ Street, N.W., Suite 900
                         Washington, D.C. 20036
                         Attention: General Counsel

                                       4
<PAGE>

     If to Executive:    c/o TeleCorp PCS, Inc.
                         1101 17/th/ Street, N.W. 9/th/ Floor
                         Washington, D.C. 20036

All notices, requests, consents and other communications hereunder shall be
deemed to have been given either (i) if by hand, at the time of the delivery
thereof to the receiving party at the address of such party set forth above,
(ii) if telexed, telecopied or made by facsimile transmission, at the time that
receipt thereof has been acknowledged by electronic confirmation or otherwise,
(iii) if sent by overnight courier, on the next day following the day such
mailing is made (or in the case that such mailing is made on Saturday, on the
immediately following Monday), or (iv) if sent by certified or registered mail,
on the 5th day following the time of such mailing thereof to such address (or in
the case that such 5th day is a Sunday, on the immediately following Monday).

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the day
and year first written above.


                                   TELECORP PCS, INC.

                                   By: /s/ Gerald T. Vento
                                      ---------------------------------
                                        Gerald T. Vento, CEO


                                   EXECUTIVE


                                    /s/ Steven Chandler
                                   ------------------------------------
                                   Steven Chandler

                                       5

<PAGE>

                                                                   Exhibit 10.22


                              TELECORP PCS, INC.
                             RESTRICTED STOCK PLAN

                             SHARE GRANT AGREEMENT
                             ---------------------

          THIS AGREEMENT is entered into by and between TeleCorp PCS, Inc., a
Delaware Corporation (the "Company"), and Steven Chandler, an employee of the
Company (hereinafter the "Executive").

          WHEREAS, the Company adopted the TeleCorp PCS, Inc. 1998 Restricted
Stock Plan (the "Plan") on July 16, 1998 in order to be able to award certain
preferred and common shares of the Company to certain executives of the Company
so as to give them a proprietary interest in the Company's success and to ensure
their continuation as employees of the Company; and

          WHEREAS, the Executive renders important services to the Company or a
subsidiary of the Company, and the Company desires to award shares to the
Executive under the Plan;

          NOW, THEREFORE, in consideration of the foregoing and the mutual
agreements herein contained, the parties hereto hereby agree as follows:

          1.  Issuance of Grant Shares.  The Company hereby grants to the
              ------------------------
Executive and the Executive hereby accepts from the Company upon the terms and
conditions hereinafter set forth, 255.59 shares of Series E Preferred Stock of
the Company and 520.92 shares of Class A Voting Common Stock of the Company (the
"Grant Shares"). The effective date of issuance of the Grant Shares is the date
hereof. Upon execution of this Agreement, the Company hereby agrees to issue to
the Executive one or more certificates in his name for the Grant Shares. The
Grant Shares will be validly issued and outstanding, fully paid and non-
assessable. The Grant Shares will be held by the Company in the name of the
Executive until fully vested pursuant to Section 4, below.

          2.  Other Conditions and Limitations.  The Grant Shares are granted on
              --------------------------------
the condition that the receipt of the Grant Shares hereunder shall be for
investment purposes and not with a view to resale or distribution, except that
such condition shall be inoperative if the reoffering of
<PAGE>

Grant Shares is registered under the Securities Act of 1933, as amended, or if
in the opinion of counsel for the Company such Grant Shares may be resold
without registration.

          3.   Relationship to Plan.  The Grant Shares granted pursuant to this
               --------------------
Agreement have been granted pursuant to the Plan and are in all respects subject
to the terms, conditions and definitions of the Plan. The Executive hereby
accepts the Grant Shares subject to all the terms and provisions of the Plan and
agrees that all decisions and the interpretations of the Plan by the
Compensation Committee of the Board of Directors of the Company (the
"Committee") shall be final, binding and conclusive upon the Executive and his
heirs.

          4.   Forfeiture of Grant Shares.  The Grant Shares shall vest in
               --------------------------
accordance with the schedule set forth on Schedule B of the Plan.  In addition,
                                          ----------
the following forfeiture provisions are hereby imposed upon the Grant Shares and
shares issued in respect of such Grant Shares as share dividends or as share
splits, or otherwise (the term "Grant Shares" as used in this Agreement to
include all such shares):

               (a)  Except as provided in paragraph (b), the Executive must
          remain employed by the Company or any of its subsidiaries during the
          vesting periods set forth on Schedule B of the Plan to vest in such
                                       ----------
          Grant Shares. If the Executive fails to satisfy such requirements and
          is not otherwise vested under paragraph (b), the Executive shall
          forfeit and transfer to one or more persons designated by the
          Committee, all unvested Grant Shares granted pursuant to this
          Agreement.

               (b)  If the Executive's employment with the Company or one of its
          subsidiaries terminates prior to vesting in any Grant Shares issued
          pursuant to this Agreement by reason of his retirement under a
          retirement plan maintained by the Company or one of its subsidiaries,
          the Committee may, in its sole discretion, specify that the Executive
          become vested at that time, at a future date or upon the completion of
          such other conditions as the Committee, in its sole discretion, may
          provide.

               (c)  Executive further agrees that the Grant Shares shall be
          subject to repurchase by the Company at a repurchase price of $.01 per
          share in accordance with the terms of Exhibit A attached hereto.
                                                ---------

                                       2
<PAGE>

          (d)  Within 30 days of an event giving rise to a forfeiture under
     paragraphs (a) or (b) hereof, the Executive shall deliver to one or more
     persons specified by the Committee, all certificates representing the Grant
     Shares which have been forfeited together with stock powers validly
     assigning such Grant Shares to such other persons as the Committee may
     designate. The Company shall make no payment to the Executive with respect
     to any Grant Shares so forfeited.

          (e)  If the Executive fails to comply with any of the provisions of
     this Section 4, the Company, at its option and in addition to its other
     remedies, may suspend the rights of the Executive to vote and to receive
     future dividends on the Grant Shares which have been forfeited or may
     refuse to register on its books any transfer or change in the ownership of
     the Grant Shares which have been forfeited or in the right to vote thereon,
     until the provisions of this Section 4 are complied with to the
     satisfaction of the Company. To ensure compliance with the terms of this
     Agreement, the Company may issue to its transfer agent appropriate stop
     transfer instructions with respect of the Grant Shares (including without
     limitation any vested Grant Shares).

     5.   Nontransferability of Shares.  Any Grant Shares which are not vested,
          ----------------------------
as specified in Section 4 above, shall be non-transferable by the Executive.
Transfer of Grant Shares which are vested is further restricted pursuant to the
terms of a Stockholders' Agreement by and among Executive, the Company, AT&T
PCS, TWR Cellular and the Cash Equity Investors, TeleCorp Investors and
Management Stockholders identified therein, executed as of the date hereof (the
"Stockholders' Agreement").

     6.   Legends.  Each certificate representing Grant Shares shall contain
          -------
legends in substantially the form set forth in Section 4.1(a) and (b) of the
Stockholders' Agreement.

     7.   Rights as Shareholder.  Except as otherwise provided in the Plan or
          ---------------------
this Agreement, the Executive shall have all of the rights of a shareholder of
the Company with respect to the Grant Shares registered in his name, including
the right to vote such Grant Shares and receive the dividends and other
distributions paid or made with respect to such Grant Shares.

     8.   No Employment Commitment; Tax Treatment.  Nothing herein contained
          ---------------------------------------
shall be deemed to be or constitute an agreement or commitment by the Company to
continue the Executive in its employ. The Company makes no representation about
the tax treatment to the

                                       3
<PAGE>

Executive with respect to receiving, holding or disposing of the Grant Shares,
and the Executive represents that he has had the opportunity to discuss such
treatment (including the application of Section 83 of the Code) with his tax
adviser.

     9.   Governing Law.  This Agreement shall be subject to and construed in
          -------------
accordance with the law of Commonwealth of Delaware.

     10.  Withholding Tax.  The Company shall have the right to require the
          ---------------
Executive to pay the Company the amount of any taxes which the Company is or
will be required to withhold with respect to the Grant Shares.

     IN WITNESS WHEREOF, the Company and the Executive have executed this
Agreement in duplicate on this 16th day of July, 1998.



TELECORP PCS, INC.                  EXECUTIVE



By: /s/ Thomas Sullivan             /s/ Steven Chandler
    ------------------------        -------------------
                                    Steven Chandler

                                       4
<PAGE>

                                   Exhibit A
                                   ---------

DEFINITIONS.
- ------------

      "Base Shares" means 260.46 shares of Class A Voting Common Stock and
255.59 shares of Series E Preferred Stock or, if the Supplemental Shares have
theretofore been repurchased pursuant to Section (b)(1)(i) or (b)(2), 249.47
shares of Class A Voting Common Stock and 245.00 shares of Series E Preferred
Stock.

      "Company Merger" shall mean any merger, combination or consolidation of
the Company or one of its subsidiaries with or into any other entity (regardless
of who survives).

      "Company Asset Sale" shall mean any sale or disposition of a substantial
portion of the Company's assets.

      "Deemed Per Share Value" means (A) in the case of an Extraordinary Event
specified in clause (x) or (y) of the definition thereof, (1) the fair market
value of all of the assets of the Company and its Subsidiaries at the time of
any calculation of such value, less (x) any expenses which would be incurred
solely in connection with the disposition of such assets, (y) the aggregate
amount of all liabilities of the Company and (z) the aggregate redemption price
of all outstanding shares of all series of Preferred Stock of the Company that
are not then convertible into Common Stock at the option of the holder thereof
(or if any such series is not then redeemable, the aggregate liquidation
preference thereof), all as determined in good faith by the Board of Directors,
divided by (2) the number of shares of Common Stock outstanding on a Fully
Diluted Basis, and (B) in the case of an Extraordinary Event specified in clause
(z) of the definition thereof, the per share offering price of the Common Stock
issued in connection with the public offering occurring on the IPO Date.

      "Extraordinary Event" means (x)  the consummation of a Company Merger
after giving effect to which the cash equity investors (as defined by the
Company) in the aggregate shall beneficially own on a Fully Diluted Basis less
than 33% of the capital stock or other equity interests in the surviving entity,
(y) the consummation of a Company Asset Sale or (z) the occurrence of the IPO
Date.

      "Extraordinary Event Shares" means a number of Grant Shares equal to
260.46 shares of Class A Voting Common Stock, or, if the Supplemental Shares
have theretofore been repurchased, 249.48 shares of Class A Voting Common Stock.

      "Fully Diluted Basis" means, with respect to the shares of Common Stock
outstanding, all of the shares of all classes of

                                       5
<PAGE>

Common Stock then outstanding (regardless of whether subject to repurchase),
plus all the shares of Common Stock issuable upon the exercise of outstanding
options or convertible securities that are then convertible into Common Stock at
the option of the holder thereof; provided that for the purpose of calculating
                                  --------
the number of shares of Common Stock outstanding on a Fully Diluted Basis in
order to determine whether the Internal Rate of Return pursuant to Section (b)
(3) equals (A) more than 30% but less than 35%, none of the Extraordinary Event
Shares shall be deemed to be outstanding, and (B) 35% or more, one-half of the
Extraordinary Event Shares shall be deemed to be outstanding.

      "IPO Date" shall mean the first date on which (a) the Class A Voting
Common Stock shall have been registered pursuant to an effective registration
statement under the Securities Act of 1933, (b) the aggregate gross proceeds
received by the Company in connection with such registration statement(s) equals
or exceeds $20 million, and (c) the Class A Voting Common Stock shall be listed
for trading on the New York Stock Exchange or the American Stock Exchange or
authorized for trading on NASDAQ, including without limitation its National
Market system.

      "Supplemental Closing" shall mean the consummation by the Company or one
of its wholly-owned subsidiaries of an acquisition of F-Block PCS Licenses in
respect of one million or more POPs from Mercury PCS, LLC or its designee.

      1.    "Subsidiaries" means any entity in which the Company owns, directly
or indirectly, 50% or more of the voting power of the voting equity securities
or equity interests.

      "Supplemental Shares" means 10.59 shares of Series E Preferred Stock and
21.97 shares of Class A Voting Common Stock.

Repurchase of Shares.
- --------------------

      Repurchase Upon Termination. Following the termination of Executive's
employment with the Company, for any reason, each Executive shall sell to the
Company, and the Company shall purchase from each Executive, at a repurchase
price of $.01 per share:  (i) first, if and only if the termination occurs prior
to January 23, 2000, Executive's Supplemental Shares; (ii) second, if and only
if the termination occurs prior to the occurrence of an Extraordinary Event,
Executive's Extraordinary Event Shares; (iii) third, if and only if the
termination occurs after the occurrence of an Extraordinary Event, Executive's
Extraordinary Event Shares that have not theretofore vested

                                       6
<PAGE>

pursuant to this Agreement; and (iv) fourth, Executive's Base Shares that have
not theretofore vested pursuant to this Agreement.

          Repurchase In Absence of SupplementaL Closing. If and only if the
Supplemental Closing shall not have occurred on or before January 23, 2000, each
Executive shall sell to the Company, and the Company shall purchase from each
Executive, his Supplemental Shares.

          Repurchase Upon Extraordinary Event. Upon the occurrence of an
Extraordinary Event, Executive shall sell to the Company, and the Company shall
purchase from Executive, the percentage of his Extraordinary Event Shares set
forth opposite the Internal Rate of Return realized by the Cash Equity Investors
(as defined by that certain Stockholders' Agreement by and among AT&T Wireless
PCS, Inc., the Cash Equity Investors, Management Stockholders and TeleCorp PCS,
Inc., dated as of July 17, 1998) as set forth on the chart below in connection
with the applicable Extraordinary Event:


              Internal Rate of
              Return Realized by             Percentage of Extraordinary
              Cash Equity Investors          Event Shares to be Repurchased
              ---------------------          ------------------------------

              Less than 30%                  100%

              30% or more but less
              than 35%                       50%

              35% or more                    0%


          For the purpose of this paragraph, the Cash Equity Investors will be
deemed to have "realized an Internal Rate of Return" of any percentage
specified, as of any date, when (i) the aggregate amount of all distributions
actually made in respect of the Cash Equity Investors' Series C Preferred Stock
and Common Stock, plus an amount equal to interest thereon at the rate of 10%
per annum, compounded annually, from the date each such distribution is made to
and including the date of the calculation, plus the aggregate redemption price
of all outstanding shares of Series C Preferred Stock then Beneficially Owned by
the Cash Equity Investors, plus the product of the Deemed Per Share Value
multiplied by the number of shares of all classes of Common Stock then owned by
the Cash Equity Investors, is equal to (ii) the aggregate amount of all capital
contributions made by the Cash Equity Investors, plus an amount equal to
interest thereon at such percentage per annum, compounded annually, from the
date each such capital contribution is made to and including such date of
calculation.

                                       7
<PAGE>

               The Grant Shares repurchased pursuant hereto are sometimes
          referred to, collectively, as the "Repurchased Shares."

          Closing of Repurchase; Assignment of Repurchase Right. The closing of
a purchase and sale of Repurchased Shares shall take place on a date mutually
agreed by the Executive and the Company, but in no event later than 30 days
after (i) in the case of Section (b)(1), the date Executive's employment with
the Company terminates or, (ii) in the case of Section (b)(2), January 23, 2000,
or (iii) in the case of Section (b)(3), the occurrence of the Extraordinary
Event. At each such closing, the Company shall deliver to the Executive a check
in the amount of the aggregate repurchase price and, upon delivery thereof, the
Company shall become the legal and beneficial owner of the Repurchased Shares
and all rights and interests therein or relating thereto, and the Company shall
have the right to retain and transfer to its own name the shares of Preferred
Stock and/or Common Stock being repurchased by the Company. Whenever the Company
shall have the right to repurchase Preferred Stock and/or Common Stock
hereunder, such Grant Shares shall be returned to the Plan and may be reissued
by the Company.

          Escrow of Shares. The Certificate(s) representing all shares, subject
to repurchase pursuant to Section (b) shall be held by the Secretary of the
Company as escrow holder (the "Escrow Holder"), along with a stock power
executed by the Executive in blank. The Escrow Holder is hereby directed to
permit transfer of such shares only in accordance with this Agreement. In the
event further instructions are desired by the Escrow Holder, he shall be
entitled to rely upon written directions of the Committee. The Escrow Holder
shall have no liability for any act or omission hereunder while acting in good
faith in the exercise of his own judgment. If the Company or any assignee
repurchases any of the Grant Shares pursuant to this Agreement, the Escrow
Holder, upon receipt of written notice of such repurchase from the proposed
transferee, shall take all steps necessary to accomplish such repurchase. From
time to time, upon Executive's request, the Escrow Holder shall: (i) cancel the
certificate(s) held by the Escrow Holder and representing Grant Shares, (ii)
cause new certificate(s) to be issued representing the number of Grant Shares no
longer subject to repurchase pursuant to this Agreement, which certificate(s)
the Escrow Holder shall deliver to Executive, and (iii) cause new certificate(s)
to be issued representing the balance of the Grant Shares, which certificate(s)
shall be held in escrow by the Escrow Holder in accordance with the provisions
of this Section (d). Subject to the terms hereof, Executive shall have all the
rights of a stockholder with respect to the Grant Shares while they are held in
escrow, including without limitation, the right to vote the Grant Shares and
receive any cash dividends declared thereon. If, from time to time during the
term of the Company's repurchase right, there is (i) any stock dividend, stock
split or other change in the Grant Shares, or (ii) any merger or sale of all or
substantially all of the assets or other acquisition of the Company, any and all
new, substituted or additional securities to which Executive is entitled by
reason of his ownership of the Grant Shares shall be immediately subject to this
escrow, deposited with the Escrow Holder and included thereafter as "Grant
Shares" for purposes of this Agreement and the Company's repurchase right.

                                       8
<PAGE>

     After the IPO Date, Executive shall have the right to exchange certificates
evidencing the number of Grant Shares no longer subject to repurchase pursuant
to this Agreement,  for certificates that do not contain a restrictive legend.

                                       9
<PAGE>

                            STOCKHOLDERS' AGREEMENT
                            -----------------------


     STOCKHOLDERS' AGREEMENT, dated as of July 17, 1998 (this "Agreement"), by
and among AT&T WIRELESS PCS INC., a Delaware corporation (together with its
Affiliated Successors, "AT&T PCS"), TWR CELLULAR, INC., a Delaware corporation
(together with its Affiliated Successors, "TWR Cellular"), the investors listed
on Schedule I (individually, each a "Cash Equity Investor" and, collectively,
with any of its Affiliated Successors, the "Cash Equity Investors"), the
Management Stockholders (defined below), TELECORP PCS, INC., a Delaware
corporation (the "Company") and STEVEN CHANDLER, an employee of the Company (the
"Executive"). Each of the foregoing, together with all others who, in connection
with a Transfer (as hereinafter defined) are required to become a party to this
Agreement (other than the Company), or with the consent of the Board of
Directors (as hereinafter defined) are issued shares of Company Stock and are
required as a condition of such issuance to become a party to this Agreement,
are sometimes referred to herein, individually, as a "Stockholder" and,
collectively, as the "Stockholders." Capitalized terms used and not defined
herein shall have the meaning set forth in the Stockholders' Agreement by and
between AT&T PCS, Cash Equity Investors, Management Stockholders and the Company
(the "Joint Venture Stockholders' Agreement").

                                   RECITALS
                                   --------

     WHEREAS, pursuant to the terms of a Share Grant Agreement by and between
Executive and the Company, of even date herewith,  Executive has been granted by
the Company 255.59 shares of Series E Preferred Stock and 520.92 shares of Class
A Voting Common Stock (collectively, the "Grant Shares"); and

     WHEREAS, the parties desire to enter into this Agreement to impose certain
restrictions with respect to the voting rights of the Grant Shares and the sale,
transfer or other disposition of the Grant Shares on the terms and conditions
hereinafter set forth;

     NOW, THEREFORE, in consideration of the premises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the parties agree as follows:

                                   ARTICLE I
                                   ---------
                             Management of Company
                             ---------------------

     Section 1.1  Board of Directors. Subject to Section 1.9, the Board of
     -----------  ------------------
Directors shall consist of thirteen (13) directors; provided, however, that the
                                                    --------  -------
number of directors constituting the Board of Directors shall be reduced in the
circumstances set forth in this Section 1.1.  Executive hereby agrees that he
will vote all of his shares of Class A Voting Common Stock Beneficially Owned or
held of record by him (whether now owned or hereafter acquired), in person or by
proxy, to cause the election of directors and thereafter the continuation in
office of such directors as follows:

          (a)  three (3) individuals selected by holders of a Majority in
Interest of
<PAGE>

the Class A Voting Common Stock Beneficially Owned by the Cash Equity Investors,
in their sole discretion;

          (b)  Gerald Vento (so long as he is an officer of the Company and the
Management Agreement shall be in full force and effect);

          (c)  Thomas Sullivan (so long as he is an officer of the Company and
the Management Agreement shall be in full force and effect);

          (d)  two (2) individuals (the "Series A Preferred Directors") elected
by AT&T PCS in its capacity as holder of Series A Preferred Stock so long as it
and TWR Cellular has the right to elect two directors in accordance with the
Restated Certificate; and

          (e)  (i) three (3) individuals selected by the holders of the Voting
Preference Stock, which three (3) individuals shall be reasonably acceptable to
holders of a Majority in Interest of the Class A Voting Common Stock
Beneficially Owned by the Cash Equity Investors, and (ii) three (3) individuals
selected by the holders of the Voting Preference Stock, which three (3)
individuals shall be reasonably acceptable to holders of a Majority in Interest
of the Class A Voting Common Stock Beneficially Owned by the Cash Equity
Investors and AT&T PCS, in the reasonable discretion of such Cash Equity
Investors, on the one hand, and AT&T PCS, on the other hand.

In the event that Mr. Vento or Mr. Sullivan shall cease to be an officer of the
Company, or the Management Agreement shall cease to be in full force and effect,
such individuals shall resign (or the holders of the Voting Preference Stock
shall remove him) from the Board of Directors and the holders of the Voting
Preference Stock shall select a replacement or replacements who shall be
acceptable to a Majority in Interest of the Cash Equity Investors, AT&T PCS ,and
TWR Cellular, in each case in its sole discretion. In the event that AT&T PCS
shall cease to be entitled to elect the Series A Preferred Directors, such
directors shall resign (or the other directors or Stockholders shall remove
them) from the Board of Directors and the remaining directors shall take such
action so that the number of directors constituting the entire Board of
Directors shall be reduced accordingly. In the event that any Cash Equity
Investor that has an Unfunded Commitment shall fail to satisfy any such portion
of its Unfunded Commitments when due in accordance with Section 2.2 of the
Securities Purchase Agreement or Section 3.10 of the Joint Venture Stockholders'
Agreement, and such failure is not cured by such Cash Equity Investor within
thirty-five (35) days thereof, then, until such failure is cured, the member of
the Board of Directors who is designated by, or Affiliated with, such Cash
Equity Investor (whether as an employee, partner, member, stockholder or
otherwise) shall resign from the Board of Directors and the Person(s) who
designated such member shall select an individual acceptable to AT&T PCS in its
sole discretion.

          Each of One Liberty, Toronto Dominion and Northwood shall have the
right, so long as it Beneficially Owns at least 5,000 shares of Series C
Preferred Stock and 5,000 shares of Class A Voting Common Stock to designate one
(1) person who shall be entitled to attend the Board of Directors Meeting as an
observer, including meetings during which the Company's annual budget is
discussed and presented. Such observer shall have

                                      -2-
<PAGE>

the right to receive all of the Board of Directors materials and shall also have
the right to meet quarterly with the management of the Company to consult on the
business affairs of the Company. In addition, so long as AT&T PCS and TWR
Cellular have the right to designate two directors in accordance with the
Restated Certificate, up to two (2) AT&T PCS regional directors (in regions
overlapping with or in geographic proximity to the Territory) shall have the
right to attend each meeting of the Board of Directors as an observer.

          Any nomination or designation of directors and the acceptance thereof
pursuant to Section 1.1 shall be evidenced in writing.

     SECTION 1.2    REMOVAL; FILLING OF VACANCIES.  Except as set forth in
     -----------    -----------------------------
Section 1.1, Executive agrees he will not vote any shares of Class A Voting
Common Stock Beneficially Owned by him, to vote for the removal without cause of
any director designated by any other Stockholder in accordance with Section 1.1.
Any Stockholder or group of Stockholders who has the right to designate any
member(s) of the Board of Directors shall have the right to replace any
member(s) so designated by it (whether or not such member is removed from the
Board of Directors with or without cause or ceases to be a member of the Board
of Directors by reason of death, disability or for any other reason) upon
written notice to the other Stockholders, the Company and the members of the
Board of Directors which notice shall set forth the name of the member(s) being
replaced and the name of the new member(s); provided, however, that if a
                                            --------  -------
director designated pursuant to (x) Section 1.1(e)(i) is replaced by the holders
of Voting Preference Stock, the individual designated by the holders of Voting
Preference Stock to replace such director must be acceptable to the Cash Equity
Investors in accordance with the terms of Section 1.1(e)(i), and (y) Section
1.1(e)(ii) is replaced by the holders of Voting Preference Stock, the individual
designated by the holders of Voting Preference Stock to replace such director
must be acceptable to the Cash Equity Investors and AT&T PCS in accordance with
the terms of Section 1.1(e)(ii). Executive agrees to vote his shares of Class A
Voting Common Stock, or shall otherwise take any action as is necessary, to
cause the election of any successor director designated by any Stockholder
pursuant to this Section 1.2. The holders of the Voting Preference Stock, agree
that during the three (3) year period commencing on the date hereof they will
not (i) remove the individuals nominated by them pursuant to Sections 1.1(e)(i)
and 1.1(e)(ii), or (ii) nominate for election any individuals other than the
individuals initially selected by them and approved in accordance with said
Sections 1.1(e)(i) and (e)(ii), subject to the agreements of such individuals to
serve on the Board of Directors.

     SECTION 1.3    INITIAL DIRECTORS.  In accordance with Section 228 of  the
     -----------    -----------------
Delaware General Corporation Law and pursuant to the provisions of Section 1.1
of this Agreement, Executive hereby consents to the election of and does hereby
elect in accordance with Section 1.1 hereof the persons designated in Schedule
II hereof as directors of the Company. Such persons shall hold office until
their successors are duly elected and qualified, except as otherwise provided in
this Agreement, the Joint Venture Stockholders'

                                      -3-
<PAGE>

Agreement or the Restated Certificate or the Restated By-Laws.

     SECTION 1.4    BUSINESS OF THE COMPANY.  The business and affairs of  the
     -----------    -----------------------
Company shall be conducted by the officers of the Company under the supervision
of the Board of Directors, substantially in accordance with operating and
capital expenditure budgets approved by the Board of Directors from time to
time. Executive hereby approves the five (5) year build-out plan for the
Business and the capital budget for the first two (2) years of the Business in
the forms attached as Schedule IX of the Joint Venture Stockholders' Agreement.

     SECTION 1.5    REQUIRED VOTES.  (a)  All actions of the Board of Directors
     -----------    --------------
of the Company shall require the vote of at least a majority of the entire Board
of Directors, unless otherwise required by Law, the Restated Certificate, the
Restated By-Laws, the Joint Venture Stockholders' Agreement or this Agreement.

          (b)  None of the following transactions or actions shall be entered
into or taken by the Company, unless (i) voted for or consented to by the vote
of at least three (3) of the five (5) directors designated pursuant to Sections
1.1(a) and (d) and six (6) of the eight (8) directors designated pursuant to
Sections 1.1(b), (c) and (e) of the Board of Directors of the Corporation.

          1.   The sale, transfer, assignment or other disposition of any
               material portion of the assets of the Company or any of its
               Subsidiaries other than in the ordinary course of business;

          2.   The merger, combination or consolidation of the Company or any of
               its Subsidiaries with or into any other entity, regardless of
               whether the Company or any such Subsidiary is the surviving
               entity in any such merger, combination or consolidation, the
               acquisition of any businesses by the Corporation, the formation
               of any partnership or joint venture involving the Company, or the
               liquidation, dissolution or winding up of the Company or any of
               its Subsidiary;

          3.   Any offering or issuance of additional shares of Preferred Stock,
               Voting Preference Stock or Common Stock of, or any other
               securities or ownership interests in, the Company or any of its
               Subsidiaries, including, without limitation, warrants, options or
               other rights convertible or exchangeable into Preferred Stock,
               Voting Preference Stock or Common Stock of, or other securities
               or ownership interests in, the Company or any of its Subsidiaries
               except as contemplated by the Securities Purchase Agreement or
               the declaration of any dividends thereon.

          4.   The repurchase by the Company of any Company Stock

                                      -4-
<PAGE>

               (other than shares of Class A Voting Common Stock or Series E
               Preferred Stock purchased from former employees of the Company);

          5.   The authorization or adoption of any amendment to the Restated
               Certificate, Restated By-laws or any constituent document of the
               Company or any of its Subsidiaries;

          6.   The hiring or termination of any executive officer of the
               Company;

          7.   The approval of, or amendment to, any operating or capital budget
               of the Company or any of its Subsidiaries;

          8.   The incurrence by the Company or any of its Subsidiaries, whether
               directly or indirectly, of any indebtedness for borrowed money or
               capital leases in any calendar quarter in excess of $1,000,000;

          9.   Any agreement or arrangement, written or oral, to pay any
               director, officer, agent or employee of the Company or any of its
               Subsidiaries $200,000 or more on an annual basis or any loan,
               lease, contract or other transaction with any employee of the
               Company or any of its Subsidiaries with an annual salary in
               excess of $200,000 or with any director or officer of the Company
               or any member of any such Person's Immediate Family;

          10.  The making of, or commitment to make, any capital expenditures
               involving a payment or liability in any one year of $1,000,000 or
               more in the aggregate by the Company or any of its Subsidiaries;

          11.  The initiation of any bankruptcy proceeding, dissolution or
               liquidation of the Company or any of its Subsidiaries; and

          12.  The entering into any contract, agreement or understanding to do
               any of the foregoing.

     Notwithstanding the foregoing, any amendment, modification, waiver or
termination of the Management Agreement shall require the affirmative vote or
consent of a majority of the Board of Directors (excluding Messrs. Vento and
Sullivan).

     SECTION 1.6    TRANSACTIONS BETWEEN THE COMPANY AND THE STOCKHOLDERS OR
     -----------    --------------------------------------------------------
THEIR AFFILIATES.  Except for this Agreement, the Joint Venture Stockholders'
- ----------------
Agreement, the Securities Purchase Agreement and the Related Agreements and the
transactions contemplated hereby and thereby and any other arms-length
agreements or transactions

                                      -5-
<PAGE>

entered into from time to time between the Company and its Subsidiaries, on the
one-hand, and AT&T PCS and its Affiliates, on the other hand, no Stockholder or
any Affiliate of any Stockholder shall enter into any transaction with the
Company or any Subsidiary of the Company unless such transaction is approved by
a majority of the disinterested members of the Board of Directors. For purposes
hereof, a director shall be deemed to be disinterested with respect to any such
transaction if such director was not designated a director by the Stockholder
that (or an Affiliate of which) proposed to engage in such transaction with the
Company or any Subsidiary of the Company and such member is not an officer,
director, partner, employee, stockholder of, or consultant to, such Stockholder
or any of its Affiliates; provided, however, that for purposes of this Section
1.6 the directors designated pursuant to Section 1.1(e) (ii) and Section 1.9(a)
(ii) shall not be deemed to have been designated by the Cash Equity Investors,
AT&T PCS or the holders of the Voting Preference Stock.

     SECTION 1.7    BOARD COMMITTEES.  An executive committee of the Board of
     -----------    ----------------
Directors (or a committee of the Board of Directors having substantially the
same mandate and powers of such a committee) shall be established, which
committee shall be comprised of five (5) individuals as follows: one (1) of the
Series A Preferred Directors, one of the directors selected by the Cash Equity
Investors pursuant to Section 1.1(a), Mr. Vento (so long as he is an officer of
the Company), one (1) of the directors selected pursuant to Section 1.1(e)(i)
and one (1) of the directors selected pursuant to Section 1.1(e)(ii).

     SECTION 1.8    VOTING AGREEMENTS AND VOTING TRUSTS.  Except as disclosed on
     -----------    -----------------------------------
Schedule X of the Joint Venture Stockholders' Agreement or referred to in this
Section 1.8, Executive agrees that he will not, directly or indirectly, deposit
any of his shares of Series E Preferred Stock and/or Common Stock in a voting
trust or other similar arrangement or, except as expressly provided herein,
subject such shares to a voting agreement or other similar arrangements. Each of
AT&T PCS and TWR Cellular covenants and agrees that it will not, directly or
indirectly, enter into a voting or similar agreement with any Transferee of
shares of Series A Preferred Stock. Each holder of Voting Preference Stock shall
vote all shares of Voting Preference Stock owned by him in accordance with the
vote of holders of a majority of the shares of Voting Preference Stock.

     SECTION 1.9    BOARD OF DIRECTORS AFTER VOTING PREFERENCE STOCK.  Effective
     -----------    ------------------------------------------------
on the later to occur of (x) the date that holders of shares of Voting
Preference Stock shall vote as a class with holders of Class A Voting Common
Stock, and (y) immediately prior to the IPO Date, the Board of Directors shall
consist of seven (7) directors, Executive hereby agrees that he will vote all of
the shares Class A Voting Common Stock owned or held of record by him (whether
now owned or hereafter acquired), in person or by proxy, to cause the election
of directors as follows:

          (a)  (i)  two (2) individuals selected by holders of a Majority in
Interest of the Common Stock Beneficially Owned by the Cash Equity Investors, in
their sole discretion and (ii) two (2) additional individuals selected by
holders of a Majority in Interest of the Common Stock held by the Cash Equity
Investors, which two (2) additional individuals shall be acceptable to the
Management Stockholders (in each case so long as each is an officer of the
Company) and AT&T PCS, in the discretion of the Management

                                      -6-
<PAGE>

Stockholders, on the one hand, and AT&T PCS, on the other hand;

          (b)  Two (2) individuals employed by the Company and selected by the
Management Stockholders (in each case so long as the Management Stockholders are
officers of the Company), one of whom shall be acceptable to holders of a
Majority in Interest of the Class A Voting Common Stock Beneficially Owned by
the Cash Equity Investors and AT&T PCS, in the reasonable discretion of such
Cash Equity Investors, on the one hand, and AT&T PCS on the other hand; and

          (c)  One (1) individual elected by AT&T PCS in its capacity as holder
of Series A Preferred Stock so long as it has the right to elect one director in
accordance with the Restated Certificate.

     In the event that an individual selected by the Management Stockholders
pursuant to clause (b) above shall cease to be an officer of the Company, such
            ----------
individual shall resign (or the other directors or Stockholders shall remove
him) from the Board of Directors and the Board of Directors shall select a
replacement from the executives of the Company who shall be reasonably
acceptable to a Majority in Interest of the Cash Equity Investors, on the one
hand, and AT&T PCS, on the other hand, in each case in its sole discretion. In
the event that AT&T PCS and TWR Cellular shall cease to be entitled to elect one
(1) Series A Preferred Director, such director shall resign (or the other
directors or Stockholders shall remove him) from the Board of Directors and the
remaining directors shall take such action so that the number of directors
constituting the entire Board of Directors shall be reduced accordingly.

                                  ARTICLE II
                                  ----------
                              TRANSFER OF SHARES
                              ------------------

     SECTION 2.1    General.
     -----------

          (a)  Executive agrees that at all times prior to the IPO Date he shall
not, directly or indirectly, transfer, sell, assign, pledge, tender or otherwise
grant, create or suffer to exist a lien in or upon, give, place in trust, or
otherwise voluntarily or involuntarily (including transfers by testamentary or
intestate succession) dispose of by operation of law, offer or otherwise (any
such action being referred to herein as a "Transfer"), any of the Grant Shares
which have vested (the "Vested Shares"), except after complying first with
Section 2.2 and next with Section 2.3, if applicable.

          (b)  Executive agrees that at all times on and after the IPO Date he
shall not, directly or indirectly, transfer any of the Vested Shares except
after complying first with Section 2.2 and next with Section 2.3, if applicable,
provided, however, Executive shall not be required to comply with Section 2.2 if
- --------  -------
he first complies with the applicable provisions of Section 2.4 in connection
with Transfers of Common Stock pursuant to Rule 144, or in any single
transaction or series of related transactions to one or more persons which
results in the Transfer by Executive (together with any other stockholder of the
Company participating in such single transaction or series of related
transactions) of not

                                      -7-
<PAGE>

more than ten percent (10%) of the Common Stock on a fully diluted basis
(excluding for such purposes the Series A Preferred Stock).

          (c)  Prior to the IPO Date, Executive agrees that he will not transfer
any Vested Shares of Preferred Stock held by him except after complying with
Section 2.2; it being understood that on and after the IPO Date, Executive may
transfer his Vested Shares of Preferred Stock free from any restrictions on
transfer of such shares under this Agreement, but subject at all times to the
restrictions imposed by federal and state securities laws.

     SECTION 2.2    Right of  First Offer.
     -----------

          (a)  If Executive desires to Transfer any or all of his Vested Shares
of Preferred Stock or Common Stock (collectively, the "Offered Shares"), he
shall give written notice (the "Offer Notice") to the Company and to each
Stockholder entitled to become the First Offeree of such Offered Shares, as
determined below. Each Offer Notice shall describe in reasonable detail the
number of shares of each class of Offered Shares, the cash purchase price
requested and all other material terms and conditions of the proposed Transfer.
The Offer Notice shall constitute an irrevocable offer (a "First Offer") to sell
all (and not less than all) of the Offered Shares to the First Offeree(s) at a
cash price equal to the price contained in such Offer Notice and upon the same
terms as the terms contained in such Offer Notice. The First Offeree shall have
the irrevocable right and option, exercisable as provided below, but not the
obligation, to accept the First Offer as to all (and not less than all) of the
Offered Shares. The "First Offeree" shall be AT&T PCS.

          (b)  The option provided for herein shall be exercisable by the First
Offeree by giving written notice (a "Purchase Notice"), that the First Offeree
desires to purchase all (and not less than all) of such Offered Shares from the
Seller, to the Stockholders (other than the Seller) and the Company not later
than ten (10) business days (the "First Offer Period") after the date of the
Offer Notice. The purchase of the Offered Shares by the First Offeree shall be
closed at the principal executive offices of the Company on a date specified by
the First Offeree upon at least five (5) business days' notice, that is within
thirty (30) days after the expiration of the First Offer Period; provided,
                                                                 --------
however, that if such purchase is subject to the consent of the FCC or any
- -------
public service or public utilities commission, the purchase of the Offered
Shares shall be closed on the first business day after all such consents shall
have been obtained by Final Order.

          (c)  If the First Offeree declines (which shall include the failure to
give timely notice of acceptance) to purchase all of the Offered Shares subject
to the First Offer within the First Offer Period, the Seller shall have the
right (for a period of ninety (90) days following the expiration of the First
Offer Period) to consummate the sale of the Offered Shares to any person;
provided, however, that the purchase price of such Offered Shares payable by
- --------  -------
such person must be at least equal to the cash purchase price thereof set forth
in the Offer Notice and all other terms and conditions of any such sale shall
not be more beneficial to such third party than those contained in the Offer
Notice. If any Offered Shares are not sold pursuant to the provisions of this
Section 2.2 prior to the expiration of the ninety (90) day period specified in
the immediately preceding sentence, such Offered

                                      -8-
<PAGE>

Shares shall become subject once again to the provisions and restrictions
hereof; provided, however, that if such purchase is subject to the consent of
        --------  -------
the FCC or any public service or public utilities commission, the purchase of
the Offered Shares shall be closed on the first business day after all such
consents shall have been obtained by Final Order.

          (d)  The purchase price of any Offered Shares Transferred pursuant to
this Section 2.2 shall be payable in cash by certified bank check or by wire
transfer of immediately available funds.

     SECTION 2.3    Rights of Inclusion.
     -----------

          (a)  Executive shall not, directly or indirectly, Transfer, in any
single transaction or series of related transactions to one or more Persons
(each such Person an "Inclusion Event Purchaser") shares of any series or class
of stock issued by the Company (collectively, "Inclusion Stock") in
circumstances in which, after giving effect to such Transfer, whether acting
alone or in concert with any other Stockholder (such parties referred to herein
as "Selling Stockholders") would result in such Selling Stockholder(s)
Transferring twenty-five percent (25%) or more of the outstanding shares of any
such class of Inclusion Stock outstanding on the date of such proposed Transfer
on a fully diluted basis (an "Inclusion Event"), unless the terms and conditions
of such sale to such Inclusion Event Purchaser shall include an offer to AT&T
PCS, the Cash Equity Investors, and the Management Stockholders (each, an
"Inclusion Event Offeree") to Transfer to such Inclusion Event Purchasers up to
that number of shares of any class of Inclusion Stock then beneficially owned
(as defined in the Securities Exchange Act of 1934) by each Inclusion Event
Offeree that bears the same proportion to the total number of shares of
Inclusion Stock at that time beneficially owned (without duplication) by each
such Inclusion Event Offeree as the number of shares of Inclusion Stock being
Transferred by the Selling Stockholders (including shares of Inclusion Stock
theretofore Transferred if in any applicable series of related transactions)
bears to the total number of shares of Inclusion Stock at the time beneficially
owned (without duplication) by the Selling Stockholders (including shares of
Inclusion Stock theretofore Transferred if in any applicable series of related
transactions). If the Selling Stockholders receive a bona fide offer from an
Inclusion Event Purchaser to purchase shares of Inclusion Stock in circumstances
in which, after giving effect to such sale would result in an Inclusion Event,
and which offer such Selling Stockholders wish to accept, the Selling
Stockholders shall then cause the Inclusion Event Purchaser's offer to be
reduced to writing (which writing shall include an offer to purchase shares of
Inclusion Stock from each Inclusion Event Offeree according to the terms and
conditions set forth in this Section 2.3) and the Selling Stockholders shall
send written notice of the Inclusion Event Purchaser's offer (the "Inclusion
Notice") to each Inclusion Event Offeree, which Inclusion Notice shall specify
(i) the names of the Selling Stockholders, (ii) the names and addresses of the
proposed acquiring Person, (iii) the amount of shares proposed to be Transferred
and the price, form of consideration and other terms and conditions of such
Transfer (including, if in a series of related transactions, such information
with respect to shares of Inclusion Stock theretofore Transferred), (iv) that
the acquiring Person has been informed of the rights provided for in this
Section 2.3 and has agreed to purchase shares of Inclusion Stock in accordance
with the terms hereof, and (v)

                                      -9-
<PAGE>

the date by which each other Selling Stockholder may exercise its respective
rights contained in this Section 2.3, which date shall not be less than thirty
(30) days after the giving of the Inclusion Notice. The Inclusion Notice shall
be accompanied by a true and correct copy of the Inclusion Event Purchaser's
offer. At any time within thirty (30) days after receipt of the Inclusion
Notice, each Inclusion Event Offeree may accept the offer included in the
Inclusion Notice for up to such number of shares of Inclusion Stock as is
determined in accordance with this Section 2.3, by furnishing written notice of
such acceptance to each Selling Stockholder, and delivering, to an escrow agent
(which shall be a bank or a law or accounting firm designated by the Inclusion),
on behalf of the Selling Stockholders, the certificate or certificates
representing the shares of Inclusion Stock to be sold pursuant to such offer by
each Inclusion Event Offeree, duly endorsed in blank, together with a limited
power-of-attorney authorizing the escrow agent, on behalf of the Inclusion Event
Offeree, to sell the shares to be sold pursuant to the terms of such Inclusion
Event Purchaser's offer.

     In the event that the Inclusion Event Purchaser does not agree to purchase
all of the shares of Inclusion Stock proposed to be sold by the Selling
Stockholders and the Inclusion Event Offerees, then each Selling Stockholder and
Inclusion Event Offeree shall have the right to sell to the Inclusion Event
Purchaser that number of shares of Inclusion Stock as shall be equal to (x) the
number of shares of Inclusion Stock which the Inclusion Event Purchaser has
agreed to purchase times (y) a fraction, the numerator of which is the number of
shares of Inclusion Stock beneficially owned (without duplication) by such
Selling Stockholder or Inclusion Event Offeree and the denominator of which is
the aggregate number of shares of Inclusion Stock beneficially owned (without
duplication) by all Selling Stockholders and Inclusion Event Offerees. If any
Inclusion Event Offeree desires to sell less than its proportionate amount of
shares of Inclusion Stock that it is entitled to sell pursuant to this Section
2.3, then the Selling Stockholders and the remaining Inclusion Event Offerees
shall have the right to sell to the Inclusion Event Purchaser an additional
amount of shares of Inclusion Stock as shall be equal to (x) the number of
shares of Inclusion Stock not being sold by any such Inclusion Event Purchasers
times (y) a fraction, the numerator of which is the number of shares of
Inclusion Stock owned such Selling Stockholder or remaining Inclusion Event
Offeree and the denominator of which is the aggregate number of shares of
Inclusion Stock beneficially owned (without duplication) by all Selling
Stockholders and remaining Inclusion Event Offerees. Such process shall be
repeated in series until all of the remaining Inclusion Event Offerees agree to
sell their remaining proportionate number of shares of Inclusion Stock.

          (b)  The purchase from each Inclusion Event Offeree pursuant to this
Section 2.3 shall be on the same terms and conditions, including the price per
share received by the Selling Stockholders and stated in the Inclusion Notice
provided to each Inclusion Event Offeree.

          (c)  Simultaneously with the consummation of the sale of the shares of
Inclusion Stock of the Selling Stockholders and each Inclusion Event Offeree to
the Inclusion Event Purchaser pursuant to the Inclusion Event Purchaser's offer,
the Selling Stockholders shall notify each Inclusion Event Offeree and shall
cause the purchaser to

                                     -10-
<PAGE>

remit to each Inclusion Event Offeree the total sales price of the shares of
Inclusion Stock held by each Inclusion Event Offeree sold pursuant thereto and
shall furnish such other evidence of the completion and time of completion of
such sale and the terms thereof as may be reasonably requested by each Inclusion
Event Offeree.

          (d)  If within thirty (30) days after receipt of the Inclusion Notice,
an Inclusion Event Offeree has not accepted the offer contained in the Inclusion
Notice, such Inclusion Event Offeree shall be deemed to have waived any and all
rights with respect to the sale described in the Inclusion Notice (but not with
respect to any subsequent sale, to the extent this Section 2.3 is applicable to
such subsequent sale) and the Selling Stockholders shall have sixty (60) days in
which to sell not more than the number of shares of Inclusion Stock described in
the Inclusion Notice, on terms not more favorable to the Selling Stockholders
than were set forth in the Inclusion Notice; provided, however, that if such
                                             --------  -------
purchase is subject to the consent of the FCC or any public service or public
utilities commission, the purchase of the Offered Shares shall be closed on the
first business day after all such consents shall have been obtained by Final
Order.

     SECTION 2.4    RIGHT OF FIRST NEGOTIATION.   In the event that Executive
     -----------    --------------------------
desires to Transfer any shares of Common Stock following the IPO Date in a
Transfer described in Section 2.1(b), he shall give written notice thereof to
AT&T PCS, such notice to specify, among other things, the number of shares that
he desires to sell. For the applicable first negotiation period hereinafter set
forth, AT&T PCS shall have the exclusive right to negotiate with Executive with
respect to the purchase of such shares; it being understood and agreed that such
exclusive right shall not be deemed to be a right of first offer or right of
first refusal for the benefit of AT&T PCS and Executive shall have the right to
reject any offer made by AT&T PCS during such applicable first negotiation
period. Upon the expiration of such applicable first negotiation period,
Executive shall have the right (for the applicable offer period hereinafter set
forth with respect to each applicable first negotiation period), following the
expiration of such applicable first negotiation period, to offer and sell such
shares included in such written notice on such terms and conditions as shall be
acceptable to such Executive in his sole discretion. If any of such shares
included in such written notice are not sold pursuant to the provisions of this
Section 2.4 prior to the expiration of the applicable offer period, such shares
shall become subject once again to the provision and restrictions hereof.

     If Executive desires to Transfer shares of Common Stock pursuant to Rule
144, the applicable first negotiation period shall be three (3) hours (it being
understood and agreed that Executive shall, in addition to giving written notice
of such proposed Transfer by facsimile, use commercially reasonable efforts to
contact AT&T PCS by telephone) and the applicable offer period upon the
expiration of such first negotiation period shall be five (5) business days, and
in any single transaction or series of related transactions to one or more
persons which will result in the Transfer by Executive (together with any other
Stockholder participating in such single transaction or series of related
transactions) of not more than ten percent (10%) of the Common Stock on a fully
diluted basis (excluding for such purposes the Series A Preferred Stock), the
applicable first negotiation period shall be one (1) business day, so long as
notice of such proposed Transfer is given to AT&T PCS

                                     -11-
<PAGE>

prior to 9:00 A.M. on the day prior to the date of such proposed Transfer (it
being understood and agreed that Executive shall, in addition to giving written
notice of such proposed Transfer by facsimile, use commercially reasonable
efforts to contact AT&T PCS by telephone) and the applicable offer period upon
the expiration of such first negotiation period shall be ten (10) business days.

     Section 2.5    Additional Conditions to Permitted Transfers.
     -----------

          (a)       Upon any Transfer pursuant to Section 2.2 or Section 2.3,
each Transferee that is not a party hereto shall, prior to such Transfer, agree
in writing to be bound by all of the provisions of this Agreement applicable to
Executive (and shall thereby become a Stockholder for all purposes of this
Agreement). Any Transfer without compliance with such provisions of this
Agreement shall be null and void and such Transferee shall have no rights as a
Stockholder of the Company.

          (b)       Notwithstanding anything to the contrary contained in this
Agreement, Executive agrees that he will not effect a Transfer of shares of
Company Stock to anyone prohibited by the Company; provided, however, that
                                                   --------  -------
nothing contained in this Section 2.5(b) shall be construed to prohibit a
Transfer of Common Stock by Executive after the IPO Date pursuant to an
underwritten registration or in accordance with the provisions of Rule 144.

     Section 2.6    Representations And Warranties. A Stockholder purchasing
     -----------    ------------------------------
shares of Company Stock pursuant to Section 2.2 shall be entitled to receive
representations and warranties from the transferring Stockholder that such
Stockholder has the authority (corporate or otherwise) to sell such shares, is
the sole owner of such shares, and has good and valid title to such shares, free
and clear of any and all Liens (other than pursuant to this Agreement, the
Restated Certificate or any Related Agreement), and that the sale of such shares
does not violate any agreement to which it is a party or by which it is bound.

     Section 2.7    Stop-Transfer.
     -----------

          (a)       The Company agrees not to effect any Transfer of shares of
Company Stock by Executive whose proposed Transfer is subject to Sections 2.2,
2.3 or 2.4 until it has received evidence reasonably satisfactory to it that the
rights provided to any other Stockholders pursuant to such Sections, if
applicable to such Transfer, have been complied with and satisfied in all
respects. No Transfer of any shares of Preferred Stock and/or Common Stock shall
be made except in compliance with all applicable securities laws. Any Transfer
made in violation of this Agreement shall be null and void.

                                  ARTICLE III
                                  -----------
                    After-acquired Shares; Recapitalization
                    ---------------------------------------

     Section 3.1    After Acquired Shares; Recapitalization
     -----------

          (a)  All of the provisions of this Agreement shall apply to all of the
shares of Equity Securities now owned or hereafter issued or transferred to
Executive or to

                                     -12-
<PAGE>

his Affiliated Successors in consequence of any additional issuance, purchase,
exchange or reclassification of shares of Equity Securities, corporate
reorganization, or any other form of recapitalization, or consolidation, or
merger, or share split, or share dividend, or which are acquired by Executive or
his Affiliated Successors in any other manner.

          (b)       Whenever the number of outstanding shares of Equity
Securities is changed by reason of a stock dividend or a subdivision or
combination of shares effected by a reclassification of shares, each specified
number of shares referred to in this Agreement shall be adjusted accordingly.

     Section 3.2    Amendment Of Restated Certificate.  Whenever The Number Of
     -----------    ---------------------------------
shares of authorized Common Stock is not sufficient in order to issue shares of
Common Stock upon conversion of Preferred Stock in accordance with the Restated
Certificate, (i) the Company shall promptly amend the Restated Certificate in
order to authorize a sufficient number of shares of Common Stock, and (ii)
Executive agrees to vote his shares of Preferred Stock and Common Stock in favor
of such amendment.

                                  ARTICLE IV
                                  ----------
                              Share Certificates
                              ------------------

       Section 4.1  Restrictive Endorsements; Replacement Certificates.  Each
       -----------  --------------------------------------------------
certificate representing the shares of Equity Securities now or hereafter held
by a Stockholder (including any such certificate delivered upon conversion of
the Preferred Stock) or delivered in substitution or exchange for any of the
foregoing certificates shall be stamped with legends in substantially the
following form:

          (a)       "The shares represented by this Certificate are subject to a
Stockholders' Agreement dated as of July 17, 1998, a copy of which is on file at
the offices of the Company and will be furnished by the Company to the holder
hereof upon written request. Such Stockholders' Agreement provides, among other
things, for the granting of certain restrictions on the sale, transfer, pledge,
hypothecation or other disposition of the shares represented by this
Certificate, and that under certain circumstances, the holder hereof may be
required to sell the shares represented by this Certificate. By acceptance of
this Certificate, each holder hereof agrees to be bound by the provisions of
such Stockholders' Agreement. The Company reserves the rights to refuse to
transfer the shares represented by this Certificate unless and until the
conditions to transfer set forth in such Stockholders' Agreement have been
fulfilled"; and

          (b)       "The securities represented by this Certificate have been
acquired for investment and have not been registered under the Securities Act of
1933, as amended (the "Act"), or under any state securities or 'Blue Sky' laws.
Said securities may not be sold, transferred, assigned, pledged, hypothecated or
otherwise disposed of, unless and until registered under the Act and the rules
and regulations thereunder and all applicable state securities or 'Blue Sky'
laws or exempted therefrom under the Act and all applicable state securities or
'Blue Sky' laws."

                                     -13-
<PAGE>

     Executive agrees that he will deliver all certificates for shares of Equity
Securities owned by him to the Company for the purpose of affixing such legends
thereto.

          (c)       Upon receipt of evidence reasonably satisfactory to the
Company of the loss, theft, destruction or mutilation of any certificate
representing shares of Equity Securities subject to this Agreement and of a bond
or other indemnity reasonably satisfactory to the Company, and upon
reimbursement to the Company of all reasonable expenses incident thereto, and
upon surrender of such certificate, if mutilated, the Company will make and
deliver a new certificate of like tenor in lieu of such lost, stolen, destroyed
or mutilated certificate.

                                   ARTICLE V
                                   ---------
                                 Miscellaneous
                                 -------------

       Section 5.1  Notices.  All notices or other communications hereunder
       -----------  -------
shall be in writing and shall be given (and shall be deemed to have been duly
given upon receipt) by delivery in person, by facsimile transmission, or by
registered or certified mail (return receipt requested), postage prepaid, with
an acknowledgment of receipt signed by the addressee or an authorized
representative thereof, addressed as follows (or to such other address for a
party as shall be specified by like notice; provided that notice of a change of
address shall be effective only upon receipt thereof:

          If to AT&T PCS or TWR Cellular:

               c/o AT&T Wireless Services, Inc.
               5000 Carillon Point
               Kirkland, Washington 98033
               Attention: William W. Hague
               Telephone: (425) 828-8461
               Facsimile: (425) 828-8451

          With a copy to:

               AT&T Corp.
               295 North Maple Avenue
               Basking Ridge, NJ 07920
               Attention:  Corporate Secretary
               Telephone:
               Facsimile:  (908) 953-4657

               and

               Friedman Kaplan & Seiler LLP
               875 Third Avenue, 8th Floor
               New York, New York 10022
               Attention:  Daniel M. Taitz

                                     -14-
<PAGE>

               Telephone:  (212) 833-1109
               Facsimile:  (212) 355-6401

               and

               Rubin Baum Levin Constant & Friedman
               30 Rockefeller Plaza
               New York, New York 10112
               Attention:  Gregg S. Lerner, Esq.
               Telephone:  (212) 698-7705
               Facsimile:  (212) 698-7825

          If to a Cash Equity Investor, to its address set forth on Schedule I.

          With a copy to:

               Mayer, Brown & Platt
               1675 Broadway
               New York, New York 10019
               Attention: Mark S. Wojciechowski, Esq.
               Telephone: (212) 506-2525
               Facsimile: (212) 262-1910

          If to a Management Stockholder or to the Company, to the address set
forth in the Securities Purchase Agreement. If to Executive, to the address set
forth in the Share Grant Agreement.

          With a copy to each other party sent to the addresses set forth in
this Section 5.1.

     Section 5.2    Waiver   failure or delay on the part of any Stockholder in
     -----------    ------
exercising any right, power or privilege hereunder, nor any course of dealing
between the Company and any Stockholder shall operate as a waiver thereof nor
shall any single or partial exercise of any right, power or privilege hereunder
preclude the simultaneous or later exercise of any other right, power or
privilege. The rights and remedies herein expressly provided are cumulative and
not exclusive of any rights and remedies which any Stockholder would otherwise
have. No notice to or demand on the Company in any case shall entitle the
Company to any other or further notice or demand in similar or other
circumstances or constitute a waiver of the rights of the Stockholders or any of
them to take any other or further action in any circumstances without notice or
demand.

     Section 5.3    Modification.  The terms and provisions of any change or
     -----------    ------------
modification to the Joint Venture Stockholders' Agreement made effective
pursuant to Section 12(b) of the Joint Venture Stockholders' Agreement, shall be
reflected in full in this Agreement as of the same was approved by the parties
hereto.

                                     -15-
<PAGE>

     Section 5.4    Obligations Several.  The obligations of each Stockholder
     -----------    -------------------
under this Agreement shall be several with respect to each such Stockholder.

     Section 5.5    Governing Law.  This Agreement shall be governed and
     -----------    -------------
construed in accordance with the law of the State of Delaware.

     Section 5.6    Benefit And Binding Effect; Severability.  This Agreement
     -----------    ----------------------------------------
shall be binding upon and shall inure to the benefit of the Company, its
successors and assigns, and each of the Stockholders and their respective
executors, administrators and personal representatives and heirs and permitted
assigns. If any term or other provision of this Agreement is invalid, illegal or
incapable of being enforced by any law or public policy or any listing
requirement applicable to the Common Stock, all other terms and provisions of
this Agreement shall nevertheless remain in full force and effect. Upon such
determination that any term or other provision is invalid, illegal or incapable
of being enforced, the parties hereto affected by such determination in any
material respect shall negotiate in good faith to modify this Agreement so as to
effect the original intent of the parties as closely as possible in an
acceptable manner in order that the provisions hereof are given effect as
originally contemplated to the greatest extent possible.

     Section 5.7    Counterparts.  This Agreement may be executed in two or more
     -----------    ------------
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

                                     -16-
<PAGE>

     IN WITNESS WHEREOF, each of the parties has executed or consent this
Agreement to be executed by its duly authorized officers as of the date first
written above.

                                   TELECORP PCS, INC.


                                   By: /s/ Thomas Sullivan
                                       -----------------------------------------
                                   Name:  Thomas Sullivan
                                   Title: Executive Vice President

EXECUTIVE:                          /s/ Steven Chandler
                                    --------------------------------------------
                                    Steven Chandler

By execution hereof, the Company and Executive agree that AT&T PCS, TWR
Cellular, the Cash Equity Investors and the Management Stockholders are to be
bound by the obligations in, and entitled to the benefits of, this Agreement by
virtue of their respective execution of that certain Agreement by and among them
and the Company dated as of the date of the Joint Venture Stockholders'
Agreement.

                                     -17-
<PAGE>

                                                                      Schedule I

                             Cash Equity Investors
                             ---------------------

CB Capital Investors, L.P.
380 Madison Avenue, 12th Floor
New York, NY 10017
Attn:  Michael Hannon
Fax:   (212) 622-3101

Equity-Linked Investors-II
Private Equity Investors III, L.P.
540 Madison Avenue, 36th Floor
New York, NY 10022
Attn:  Rohit M. Desai
Fax:  (212) 752-7807

Hoak Communications Partners, L.P.
HCP Capital Fund, L.P.
One Galleria Tower
13355 Noel Road, Suite 1050
Dallas, Texas 75240
Attn:  James Hoak
Fax:   (972) 960-4899

Whitney Equity Partners, L.P.
J.H. Whitney III, L.P.
Whitney Strategic Partners III, L.P.
177 Broad Street, 15th Floor
Stamford, Connecticut 06901
Attn:  William Laverack, Jr.
Fax:   (203) 973-1422

Entergy Technology Holding Company
Three Financial Centre
900 South Shackleford Road
Suite 210
Little Rock, Arkansas 72211
Attn:  John A. Brayman
Fax:  (501) 954-5095
<PAGE>

Media/Communications Partners III Limited Partnership
Media/Communications Investors Limited Partnership
75 State Street, Suite 2500
Boston, MA 02109
Attn:  James F. Wade
Fax:   (617) 345-7201

One Liberty Fund III, L.P.
Boston, MA 02109
Attn:  Joseph T. McCullen
Fax:   (617) 423-1765

Toronto Dominion Investments, Inc.
31 West 52nd Street
New York, NY 10019-6101
Attn:  Brian Rich
Fax:   (212) 974-8429

(with a copy to)
Toronto Dominion Investments, Inc.
909 Fannin
Suite 1700
Houston, Texas 77010
Attn:  Martha Gariepy
Fax:   (713) 652-2647

Northwood Ventures LLC
Northwood Capital Partners LLC
485 Underhill Boulevard, Suite 205
Syosset, New York 11791-3419
Attn:  Peter Schiff
Fax:   (516) 364-0879
<PAGE>

                                                                     Schedule II

                               Initial Directors
                               -----------------

                                 William Hague
                                Thomas Sullivan
                                Michael Hannon
                                  James Hoak
                                  Rohit Desai
                                 William Bandt
                               Joseph O'Donnell
                                   Kurt Maas
                                 Gerald Vento
                                  James Wade
                             William Laverack, Jr.
                                Scott Anderson
                                William Kussell

<PAGE>

                                                                   EXHIBIT 10.23


                              EMPLOYEE AGREEMENT


                                    BETWEEN



                              TELECORP PCS, INC.



                                      AND



                                 JULIE DOBSON
<PAGE>

                               Table of Contents
<TABLE>
<S>                                                                             <C>
 1.  Definitions...............................................................  1
 2.  Duties....................................................................  1
 3.  Compensation..............................................................  2
 4.  Accrued Benefits..........................................................  2
 5.  Death.....................................................................  2
 6.  Termination for Cause/Voluntary Termination...............................  3
 7.  Termination Giving Rise to a Termination Payment..........................  3
 8.  Confidential Information..................................................  3
 9.  Covenant Not to Compete/Non-Solicitation/Limitation on Public Statements..  3
10.  Employee Representations..................................................  4
11.  Amendment.................................................................  4
12.  Governing Law.............................................................  4
13.  Notice....................................................................  4
</TABLE>
<PAGE>

                              EMPLOYEE AGREEMENT
                              ------------------

          AGREEMENT, made and entered into as of this 17/th/ day of July, 1998,
by and between TeleCorp PCS, Inc., a Delaware corporation (the "Company"), and
Julie Dobson, residing at 5 Chestnut Glen Court, Mendham, New Jersey 07945
(hereinafter called the "Executive").

                              W I T N E S E T H:
                              - - - - - - - - -

          WHEREAS, the Company desires to employ Executive as an employee-at-
will to serve as Chief Operating Officer, and the Executive desires to be
employed at will by the Company as Chief Operating Officer;

          NOW, THEREFORE, in consideration of the premises, and the mutual
covenants and agreements hereinafter contained, the parties do hereby mutually
covenant and agree as follows:

          1.   Definitions.
               -----------

          (a)  Person.  For the purposes of this Agreement, "Person" shall mean
               ------
any individual, partnership, joint venture, association, trust, corporation,
limited liability company or other entity.

          (b)  Cause.  "Cause" for termination by the Company of the Executive's
               -----
employment shall, for purposes of this Agreement, be limited to (i) the
Executive's engaging in misconduct which has caused demonstrable and serious
injury to the Company, financial or otherwise, or to the Company's reputation;
(ii) conviction of a felony or misdemeanor as evidenced by a judgment, order, or
decree of a court of competent jurisdiction; (iii) failure to comply with the
directions of the Board of Directors or neglect or refusal by the Executive to
perform the Executive's duties or responsibilities (unless such duties or
responsibilities are significantly changed without the Executive's consent); or
(iv) for any violation by Executive of this Agreement or of any agreement by and
among the Company and the Executive relating to Executive's participation in the
TeleCorp PCS, Inc. 1998 Restricted Stock Plan.

          (c)  Termination Date.  For purposes of this Agreement, "Termination
               ----------------
Date" shall mean the date on which the Executive ceases to be employed by the
Company for any reason, including without limitation, death, termination or
resignation.

          2.   Duties.  For so long as Executive is employed by the Company, the
               ------
Executive shall hold the position of Chief Operating Officer of the Company and
shall devote her full working time and attention to the performance of her
duties hereunder but nothing in this Agreement shall preclude the Executive from
(i) participating in charitable and community activities or (ii) subject to
prior approval of the Board of Directors of the Company, serving on the board of
directors of another company, provided that in each case such activities or
services
<PAGE>

do not materially interfere with the regular performance of her duties and
responsibilities under this Agreement. For so long as Executive is employed by
the Company, the Executive agrees to use all reasonable efforts, skills and
abilities to promote the Company's interests; to serve as an officer of the
Company; and to perform any duties (consistent with her status) as may be
assigned by the board of directors. NOTWITHSTANDING ANYTHING HEREIN TO THE
CONTRARY, THE EXECUTIVE IS AN EMPLOYEE-AT-WILL OF THE COMPANY AND HAS NO RIGHT,
WHETHER UNDER THIS AGREEMENT OR OTHERWISE, TO ANY CONTINUED EMPLOYMENT WITH THE
COMPANY.

          3.   Compensation.  For so long as Executive is employed by the
               ------------
Company, the Executive shall be compensated as follows:

          (a)  Executive shall receive, at such intervals and in accordance with
the Company's customary payroll policies, an annual salary (the "Base Salary")
of Two Hundred Fifty Thousand Dollars ($250,000) for services rendered as Chief
Operating Officer of the Company;

          (b)  the Executive shall be eligible to receive an annual bonus
commencing on December 31, 1998 in an amount up to 50% of Executive's Base
Salary for such calendar year, prorated for the number of months actually
employed, as determined by the Board of Directors of the Company in its
discretion, taking into consideration all relevant factors, including, without
limitation, the financial performance and development of the Company and the
Executive's role therein;

          (c)  the Company shall pay or reimburse the Executive for all
reasonable expenses actually incurred or paid by the Executive in the
performance of her services hereunder; and

          (d)  the Executive shall be included to the extent eligible thereunder
in any and all plans, if any, providing general benefits to the Company's
employees, including, but not limited to, group life insurance, hospitalization,
disability, medical, dental, and pension, and shall be provided any and all
other benefits and perquisites, if any, made available to other employees of
comparable status and position, at the expense of the Company on a comparable
basis.

          4.   Accrued Benefits.  For purposes of this Agreement, the
               ----------------
Executive's Accrued Benefits shall be defined as and include the following
amounts, payable as described herein: (i) any and all Base Salary earned or
accrued through the Termination Date; (ii) reimbursement for any and all monies
advanced by the Executive without reimbursement in connection with Executive's
employment for reasonable and necessary expenses incurred by the Executive
through the Termination Date; and (iii) any and all other cash or non-cash
benefits previously earned or accrued but not paid through the Termination Date.

          5.   Death.  If the Executive shall die while an employee of the
               -----
Company, the Executive's estate, heirs and beneficiaries shall receive only the
Executive's Accrued Benefits through the Termination Date. All family medical
benefits available to them under the

                                       2
<PAGE>

Company's benefit plans as in effect on the Termination Date shall be continued
for six (6) months after the Termination Date at the Company's expense.

          6.   Termination for Cause/Voluntary Termination.  If the Executive's
               -------------------------------------------
employment is terminated for Cause, or if the Executive voluntarily terminates
the Executive's employment, then the Executive shall be entitled to receive only
Accrued Benefits.

          7.   Termination Giving Rise to a Termination Payment.
               ------------------------------------------------

          (a)  If the Executive's employment is terminated by the Company other
than for Cause, then the Executive shall be entitled to receive and the Company
shall promptly pay Accrued Benefits through the Termination Date, and the
Company further agrees that Executive shall be entitled to receive, and the
Company hereby agrees to pay to Executive, an amount equal to twelve month's of
Executive's then Base Salary (the "Termination Payment").  The Termination
Payment shall be payable to the Executive at such intervals in accordance with
the Company's normal payroll practices as if Executive remained in the employ of
the Company.

          (b)  If the Executive's employment is terminated by the Company other
than for Cause and the Executive is entitled to Accrued Benefits and the
Termination Payment, then the Executive shall continue to be covered at the
expense of the Company by the same or equivalent hospital, medical, and dental
coverage as Executive was covered by immediately prior to the Termination Date
for a period of twelve months.

          8.   Confidential Information.  Executive shall during the Executive's
               ------------------------
employment with the Company and at all times thereafter, treat all confidential
material (as hereinafter defined) of the Company confidentially.  Executive
shall not, without the prior written consent of the Company, disclose such
confidential material to any party, who at the time of such disclosure is not an
employee or agent of the Company.  For the purposes hereof, the term
"confidential material" shall mean all information acquired by the Executive in
the course of the Executive's employment with the Company; provided, however,
that the term "confidential material" shall not include information which (i)
becomes generally available to the public other than as a result of a disclosure
by the Executive, (ii) was available to the Executive on a non-confidential
basis prior to her employment with the Company, or (iii) becomes available to
the Executive on a non-confidential basis from a source other than the Company.

          9.   Covenant Not to Compete/Non-Solicitation/Limitation on Public
               -------------------------------------------------------------
Statements.  (a)  For so long as the Executive is employed by the Company and
- ----------
for a period of one year after the Termination Date, the Executive shall not
compete, directly or indirectly, with the Company, including, without
limitation, by being employed by, or being an officer or director of, or
consultant to, any Person engaged in the same business then engaged in by the
Company,  whereby the Executive performs services, or has reporting authority
for others providing services, within the Company's service area, or by being an
investor (representing more than a 5% equity interest) in a Person engaged in
the same business then engaged in by the Company in the Company's service area.

                                       3
<PAGE>

          (b)  For so long as the Executive is employed by the Company and for a
period of one year after the Termination Date, the Executive shall not interfere
with, disrupt or attempt to disrupt the relationship, contractual or otherwise,
between the Company and any customer, client, supplier, consultant or employee
of the Company.

          (c)  For a period of one year following the Termination Date, the
Executive shall limit any public statements concerning the Company to those
confirming the Company's prior  employment of Executive.

          (d)  It is the desire and intent of the parties that the provisions of
this Section 9 shall be enforced to the fullest extent permissible under the
laws and public policies applied in each jurisdiction in which enforcement is
sought. Accordingly, if any particular portion of this Section 9 shall be
adjudicated to be invalid or unenforceable, this Section 9 shall be deemed
amended to delete therefrom the portion thus adjudicated to be invalid or
unenforceable, such deletion to apply only with respect to the operation of this
Section in the particular jurisdiction in which such adjudication is made.

          10.  Employee Representations.  The employee represents and warrants
               ------------------------
to the Company as follows:  (i) she is not under any obligation to any Person
which is inconsistent or in conflict with this Agreement or which would prevent,
limit or impair in any way the performance of her obligations hereunder; and
(ii) she has not disclosed and will not disclose to the Company, nor use for the
Company's benefit, any confidential information or trade secrets of any prior
employer or principal, unless and until such confidential information and trade
secrets have become public knowledge without the employee's participation, or
unless such disclosure is permitted by any agreement with such prior employer or
principal.

          11.  Amendment.  The terms and provisions of this Agreement may be
               ---------
modified or amended only by written agreement executed by all parties hereto.

          12.  Governing Law.  This Agreement and the rights and obligations
               -------------
hereunder shall be governed by and construed in accordance with the laws of the
Commonwealth of Virginia, without giving effect to the conflict of law
principles thereof.

          13.  Notice.  All notices, requests, consents and other communications
               ------
hereunder shall be in writing, shall be addressed to the receiving party's
address set forth below

                                       4
<PAGE>

or to such other address as a party may designate by notice hereunder, and shall
be either (i) delivered by hand, (ii) telexed, telecopied or made by facsimile
transmission, (iii) sent by overnight courier, or (iv) sent by certified or
registered mail, return receipt requested, postage prepaid.

          If to the Company:  TeleCorp PCS, Inc.
                              1101 17/th/ Street, N.W., Suite 900
                              Washington, D.C.  20036
                              Attention:  General Counsel

          If to Executive:    c/o TeleCorp PCS, Inc.
                              1101 17/th/ Street, N.W. 9/th/ Floor
                              Washington, D.C. 20036

All notices, requests, consents and other communications hereunder shall be
deemed to have been given either (i) if by hand, at the time of the delivery
thereof to the receiving party at the address of such party set forth above,
(ii) if telexed, telecopied or made by facsimile transmission, at the time that
receipt thereof has been acknowledged by electronic confirmation or otherwise,
(iii) if sent by overnight courier, on the next day following the day such
mailing is made (or in the case that such mailing is made on Saturday, on the
immediately following Monday), or (iv) if sent by certified or registered mail,
on the 5th day following the time of such mailing thereof to such address (or in
the case that such 5th day is a Sunday, on the immediately following Monday).

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the day
and year first written above.

          TELECORP PCS, INC.

          By: /s/ Gerald T. Vento
             --------------------------------
              Gerald T. Vento, CEO


          EXECUTIVE


           /s/ Julie Dobson
          -----------------------------------
          Julie Dobson

                                       5

<PAGE>

                                                                   Exhibit 10.24


                              TELECORP PCS, INC.
                             RESTRICTED STOCK PLAN

                             SHARE GRANT AGREEMENT
                             ---------------------

     THIS AGREEMENT is entered into by and between TeleCorp PCS, Inc., a
Delaware Corporation (the "Company"), and Julie Dobson, an employee of the
Company (hereinafter the "Executive").

     WHEREAS, the Company adopted the TeleCorp PCS, Inc. 1998 Restricted Stock
Plan (the "Plan") on July 16, 1998 in order to be able to award certain
preferred and common shares of the Company to certain executives of the Company
so as to give them a proprietary interest in the Company's success and to ensure
their continuation as employees of the Company; and

     WHEREAS, the Executive renders important services to the Company or a
subsidiary of the Company, and the Company desires to award shares to the
Executive under the Plan;

     NOW, THEREFORE, in consideration of the foregoing and the mutual agreements
herein contained, the parties hereto hereby agree as follows:

     1.   Issuance of Grant Shares.  The Company hereby grants to the Executive
          ------------------------
and the Executive hereby accepts from the Company upon the terms and conditions
hereinafter set forth, 2,287.21 shares of Series E Preferred Stock of the
Company and 3,459.45 shares of Class A Voting Common Stock of the Company (the
"Grant Shares"). The effective date of issuance of the Grant Shares is the date
hereof. Upon execution of this Agreement, the Company hereby agrees to issue to
the Executive one or more certificates in her name for the Grant Shares. The
Grant Shares will be validly issued and outstanding, fully paid and non-
assessable. The Grant Shares will be held by the Company in the name of the
Executive until fully vested pursuant to Section 4, below.

     2.   Other Conditions and Limitations.  The Grant Shares are granted on the
          --------------------------------
condition that the receipt of the Grant Shares hereunder shall be for investment
purposes and not with a view to resale or distribution, except that such
condition shall be inoperative if the reoffering of
<PAGE>

Grant Shares is registered under the Securities Act of 1933, as amended, or if
in the opinion of counsel for the Company such Grant Shares may be resold
without registration.

     3.   Relationship to Plan.  The Grant Shares granted pursuant to this
          --------------------
Agreement have been granted pursuant to the Plan and are in all respects subject
to the terms, conditions and definitions of the Plan.  The Executive hereby
accepts the Grant Shares subject to all the terms and provisions of the Plan and
agrees that all decisions and the interpretations of the Plan by the
Compensation Committee of the Board of Directors of the Company (the
"Committee") shall be final, binding and conclusive upon the Executive and her
heirs.

     4.   Forfeiture of Grant Shares.  The Grant Shares shall vest in accordance
          --------------------------
with the schedule set forth on Schedule B of the Plan. In addition, the
following forfeiture provisions are hereby imposed upon the Grant Shares and
shares issued in respect of such Grant Shares as share dividends or as share
splits, or otherwise (the term "Grant Shares" as used in this Agreement to
include all such shares):

          (a)  Except as provided in paragraph (b), the Executive must remain
     employed by the Company or any of its subsidiaries during the vesting
     periods set forth on Schedule B of the Plan to vest in such Grant Shares.
                          ----------
     If the Executive fails to satisfy such requirements and is not otherwise
     vested under paragraph (b), the Executive shall forfeit and transfer to one
     or more persons designated by the Committee, all unvested Grant Shares
     granted pursuant to this Agreement.

          (b)  If the Executive's employment with the Company or one of its
     subsidiaries terminates prior to vesting in any Grant Shares issued
     pursuant to this Agreement by reason of her retirement under a retirement
     plan maintained by the Company or one of its subsidiaries, the Committee
     may, in its sole discretion, specify that the Executive become vested at
     that time, at a future date or upon the completion of such other conditions
     as the Committee, in its sole discretion, may provide.

          (c)  Executive further agrees that the Grant Shares shall be subject
     to repurchase by the Company at a repurchase price of $.01 per share in
     accordance with the terms of Exhibit A attached hereto.
                                  ---------

                                       2
<PAGE>

          (d)  Within 30 days of an event giving rise to a forfeiture under
     paragraphs (a) or (b) hereof, the Executive shall deliver to one or more
     persons specified by the Committee, all certificates representing the Grant
     Shares which have been forfeited together with stock powers validly
     assigning such Grant Shares to such other persons as the Committee may
     designate.  The Company shall make no payment to the Executive with respect
     to any Grant Shares so forfeited.

          (e)  If the Executive fails to comply with any of the provisions of
     this Section 4, the Company, at its option and in addition to its other
     remedies, may suspend the rights of the Executive to vote and to receive
     future dividends on the Grant Shares which have been forfeited or may
     refuse to register on its books any transfer or change in the ownership of
     the Grant Shares which have been forfeited or in the right to vote thereon,
     until the provisions of this Section 4 are complied with to the
     satisfaction of the Company.  To ensure compliance with the terms of this
     Agreement, the Company may issue to its transfer agent appropriate stop
     transfer instructions with respect of the Grant Shares (including without
     limitation any vested Grant Shares).

     5.   Nontransferability of Shares.  Any Grant Shares which are not vested,
          ----------------------------
as specified in Section 4 above, shall be non-transferable by the Executive.
Transfer of Grant Shares which are vested is further restricted pursuant to the
terms of a Stockholders' Agreement by and among Executive, the Company, AT&T
PCS, TWR Cellular and the Cash Equity Investors, TeleCorp Investors and
Management Stockholders identified therein, executed as of the date hereof (the
"Stockholders' Agreement").

     6.   Legends.  Each certificate representing Grant Shares shall contain
          -------
legends in substantially the form set forth in Section 4.1(a) and (b) of the
Stockholders' Agreement.

     7.   Rights as Shareholder.  Except as otherwise provided in the Plan or
          ---------------------
this Agreement, the Executive shall have all of the rights of a shareholder of
the Company with respect to the Grant Shares registered in her name, including
the right to vote such Grant Shares and receive the dividends and other
distributions paid or made with respect to such Grant Shares.

     8.   No Employment Commitment; Tax Treatment.  Nothing herein contained
          ---------------------------------------
shall be deemed to be or constitute an agreement or commitment by the Company to
continue the Executive in its employ.  The Company makes no representation about
the tax treatment to the

                                       3
<PAGE>

Executive with respect to receiving, holding or disposing of the Grant Shares,
and the Executive represents that she has had the opportunity to discuss such
treatment (including the application of Section 83 of the Code) with her tax
adviser.

     9.   Governing Law.  This Agreement shall be subject to and construed in
          -------------
accordance with the law of Commonwealth of Delaware.

     10.  Withholding Tax.  The Company shall have the right to require the
          ---------------
Executive to pay the Company the amount of any taxes which the Company is or
will be required to withhold with respect to the Grant Shares.

     IN WITNESS WHEREOF, the Company and the Executive have executed this
Agreement in duplicate on this 16th day of July, 1998.


TELECORP PCS, INC.                  EXECUTIVE



By: /s/ Thomas Sullivan              /s/ Julie Dolson
   -----------------------          --------------------------
                                    Julie Dobson

                                       4
<PAGE>

                                   Exhibit A
                                   ---------

          Definitions.
          -----------

                         "Base Shares" means 2,330.79 shares of Class A Voting
               Common Stock and 2,287.21 shares of Series E Preferred Stock or,
               if the Supplemental Shares have theretofore been repurchased
               pursuant to Section (b)(1)(i) or (b)(2), 2,232.45 shares of Class
               A Voting Common Stock and 2,192.43 shares of Series E Preferred
               Stock.

                         "Company Merger" shall mean any merger, combination or
               consolidation of the Company or one of its subsidiaries with or
               into any other entity (regardless of who survives).

                         "Company Asset Sale" shall mean any sale or disposition
               of a substantial portion of the Company's assets.

                         "Deemed Per Share Value" means (A) in the case of an
               Extraordinary Event specified in clause (x) or (y) of the
               definition thereof, (1) the fair market value of all of the
               assets of the Company and its Subsidiaries at the time of any
               calculation of such value, less (x) any expenses which would be
               incurred solely in connection with the disposition of such
               assets, (y) the aggregate amount of all liabilities of the
               Company and (z) the aggregate redemption price of all outstanding
               shares of all series of Preferred Stock of the Company that are
               not then convertible into Common Stock at the option of the
               holder thereof (or if any such series is not then redeemable, the
               aggregate liquidation preference thereof), all as determined in
               good faith by the Board of Directors, divided by (2) the number
               of shares of Common Stock outstanding on a Fully Diluted Basis,
               and (B) in the case of an Extraordinary Event specified in clause
               (z) of the definition thereof, the per share offering price of
               the Common Stock issued in connection with the public offering
               occurring on the IPO Date.

                         "Extraordinary Event" means (x) the consummation of a
               Company Merger after giving effect to which the cash equity
               investors (as defined by the Company) in the aggregate shall
               beneficially own on a Fully Diluted Basis less than 33% of the
               capital stock or other equity interests in the surviving entity,
               (y) the consummation of a Company Asset Sale or (z) the
               occurrence of the IPO Date.

                         "Extraordinary Event Shares" means a number of Grant
               Shares equal to 1,128.66 shares of Class A Voting Common Stock,
               or, if the Supplemental Shares have theretofore been repurchased,
               1,081.04 shares of Class A Voting Common Stock.

                         "Fully Diluted Basis" means, with respect to the shares
               of Common Stock outstanding, all of the shares of all classes of

                                       5
<PAGE>

               Common Stock then outstanding (regardless of whether subject to
               repurchase), plus all the shares of Common Stock issuable upon
               the exercise of outstanding options or convertible securities
               that are then convertible into Common Stock at the option of the
               holder thereof; provided that for the purpose of calculating the
                               --------
               number of shares of Common Stock outstanding on a Fully Diluted
               Basis in order to determine whether the Internal Rate of Return
               pursuant to Section (b) (3) equals (A) more than 30% but less
               than 35%, none of the Extraordinary Event Shares shall be deemed
               to be outstanding, and (B) 35% or more, one-half of the
               Extraordinary Event Shares shall be deemed to be outstanding.

                         "IPO Date" shall mean the first date on which (a) the
               Class A Voting Common Stock shall have been registered pursuant
               to an effective registration statement under the Securities Act
               of 1933, (b) the aggregate gross proceeds received by the Company
               in connection with such registration statement(s) equals or
               exceeds $20 million, and (c) the Class A Voting Common Stock
               shall be listed for trading on the New York Stock Exchange or the
               American Stock Exchange or authorized for trading on NASDAQ,
               including without limitation its National Market system.

                         "Supplemental Closing" shall mean the consummation by
               the Company or one of its wholly-owned subsidiaries of an
               acquisition of F-Block PCS Licenses in respect of one million or
               more POPs from Mercury PCS, LLC or its designee.

                         1.    "Subsidiaries" means any entity in which the
               Company owns, directly or indirectly, 50% or more of the voting
               power of the voting equity securities or equity interests.

                         "Supplemental Shares" means 94.78 shares of Series E
               Preferred Stock and 145.96 shares of Class A Voting Common Stock.

          Repurchase Of Shares.
          --------------------

                         Repurchase Upon Termination.  Following the termination
               of Executive's employment with the Company, for any reason, each
               Executive shall sell to the Company, and the Company shall
               purchase from each Executive, at a repurchase price of $.01 per
               share: (i) first, if and only if the termination occurs prior to
               January 23, 2000, Executive's Supplemental Shares; (ii) second,
               if and only if the termination occurs prior to the occurrence of
               an Extraordinary Event, Executive's Extraordinary Event Shares;
               (iii) third, if and only if the termination occurs after the
               occurrence of an Extraordinary Event, Executive's Extraordinary
               Event Shares that have not theretofore vested

                                       6
<PAGE>

               pursuant to this Agreement; and (iv) fourth, Executive's Base
               Shares that have not theretofore vested pursuant to this
               Agreement.

                         Repurchase In Absence Of Supplemental Closing.  If and
               only if the Supplemental Closing shall not have occurred on or
               before January 23, 2000, each Executive shall sell to the
               Company, and the Company shall purchase from each Executive, her
               Supplemental Shares.

                         Repurchase Upon Extraordinary Event.  Upon the
               occurrence of an Extraordinary Event, Executive shall sell to the
               Company, and the Company shall purchase from Executive, the
               percentage of her Extraordinary Event Shares set forth opposite
               the Internal Rate of Return realized by the Cash Equity Investors
               (as defined by that certain Stockholders' Agreement by and among
               AT&T Wireless PCS, Inc., the Cash Equity Investors, Management
               Stockholders and TeleCorp PCS, Inc., dated as of July 17, 1998)
               as set forth on the chart below in connection with the applicable
               Extraordinary Event:

<TABLE>
<CAPTION>
                      Internal Rate of
                      Return Realized by               Percentage of Extraordinary
                      Cash Equity Investors            Event Shares to be Repurchased
                      ---------------------            ------------------------------
                      <S>                              <C>
                      Less than 30%                    100%

                      30% or more but less than 35%    50%

                      35% or more                      0%
</TABLE>

                    For the purpose of this paragraph, the Cash Equity Investors
          will be deemed to have "realized an Internal Rate of Return" of any
          percentage specified, as of any date, when (i) the aggregate amount of
          all distributions actually made in respect of the Cash Equity
          Investors' Series C Preferred Stock and Common Stock, plus an amount
          equal to interest thereon at the rate of 10% per annum, compounded
          annually, from the date each such distribution is made to and
          including the date of the calculation, plus the aggregate redemption
          price of all outstanding shares of Series C Preferred Stock then
          Beneficially Owned by the Cash Equity Investors, plus the product of
          the Deemed Per Share Value multiplied by the number of shares of all
          classes of Common Stock then owned by the Cash Equity Investors, is
          equal to (ii) the aggregate amount of all capital contributions made
          by the Cash Equity Investors, plus an amount equal to interest thereon
          at such percentage per annum, compounded annually, from the date each
          such capital contribution is made to and including such date of
          calculation.

                                       7
<PAGE>

               The Grant Shares repurchased pursuant hereto are sometimes
          referred to, collectively, as the "Repurchased Shares."

     Closing Of Repurchase; Assignment Of Repurchase Right.  The closing of
a purchase and sale of Repurchased Shares shall take place on a date mutually
agreed by the Executive and the Company, but in no event later than 30 days
after (i) in the case of Section (b)(1), the date Executive's employment with
the Company terminates or, (ii) in the case of Section (b)(2), January 23, 2000,
or (iii) in the case of Section (b)(3), the occurrence of the Extraordinary
Event. At each such closing, the Company shall deliver to the Executive a check
in the amount of the aggregate repurchase price and, upon delivery thereof, the
Company shall become the legal and beneficial owner of the Repurchased Shares
and all rights and interests therein or relating thereto, and the Company shall
have the right to retain and transfer to its own name the shares of Preferred
Stock and/or Common Stock being repurchased by the Company. Whenever the Company
shall have the right to repurchase Preferred Stock and/or Common Stock
hereunder, such Grant Shares shall be returned to the Plan and may be reissued
by the Company.

     Escrow Of Shares.  The Certificate(s) representing all shares, subject to
repurchase pursuant to Section (b) shall be held by the Secretary of the Company
as escrow holder (the "Escrow Holder"), along with a stock power executed by the
Executive in blank.  The Escrow Holder is hereby directed to permit transfer of
such shares only in accordance with this Agreement.  In the event further
instructions are desired by the Escrow Holder, she shall be entitled to rely
upon written directions of the Committee.  The Escrow Holder shall have no
liability for any act or omission hereunder while acting in good faith in the
exercise of her own judgment.  If the Company or any assignee repurchases any of
the Grant Shares pursuant to this Agreement, the Escrow Holder, upon receipt of
written notice of such repurchase from the proposed transferee, shall take all
steps necessary to accomplish such repurchase.  From time to time, upon
Executive's request, the Escrow Holder shall: (i) cancel the certificate(s) held
by the Escrow Holder and representing Grant Shares, (ii) cause new
certificate(s) to be issued representing the number of Grant Shares no longer
subject to repurchase pursuant to this Agreement, which certificate(s) the
Escrow Holder shall deliver to Executive,  and (iii) cause new certificate(s) to
be issued representing the balance of the Grant Shares, which certificate(s)
shall be held in escrow by the Escrow Holder in accordance with the provisions
of this Section (d).  Subject to the terms hereof, Executive shall have all the
rights of a stockholder with respect to the Grant Shares while they are held in
escrow, including without limitation, the right to vote the Grant Shares and
receive any cash dividends declared thereon.  If, from time to time during the
term of the Company's repurchase right, there is (i) any stock dividend, stock
split or other change in the Grant Shares, or (ii) any merger or sale of all or
substantially all of the assets or other acquisition of the Company, any and all
new, substituted or additional securities to which Executive is entitled by
reason of her ownership of the Grant Shares shall be immediately subject to this
escrow, deposited with the Escrow Holder and included thereafter as "Grant
Shares" for purposes of this Agreement and the Company's repurchase right.

                                       8
<PAGE>

     After the IPO Date, Executive shall have the right to exchange certificates
evidencing the number of Grant Shares no longer subject to repurchase pursuant
to this Agreement,  for certificates that do not contain a restrictive legend.

                                       9
<PAGE>

                            STOCKHOLDERS' AGREEMENT
                            -----------------------


     STOCKHOLDERS' AGREEMENT, dated as of July 17, 1998 (this "Agreement"), by
and among AT&T WIRELESS PCS INC., a Delaware corporation  (together with its
Affiliated Successors, "AT&T PCS"), TWR CELLULAR, INC., a Delaware corporation
(together with its Affiliated Successors, "TWR Cellular"), the investors listed
on Schedule I (individually, each a "Cash Equity Investor" and, collectively,
with any of its Affiliated Successors, the "Cash Equity Investors"), the
Management Stockholders (defined below), TELECORP PCS, INC., a Delaware
corporation  (the "Company") and JULIE DOBSON, an employee of the Company (the
"Executive").  Each of the foregoing, together with all others who, in
connection with a Transfer (as hereinafter defined) are required to become a
party to this Agreement (other than the Company), or with the consent of the
Board of Directors (as hereinafter defined) are issued shares of Company Stock
and are required as a condition of such issuance to become a party to this
Agreement, are sometimes referred to herein, individually, as a "Stockholder"
and, collectively, as the "Stockholders."  Capitalized terms used and not
defined herein shall have the meaning set forth in the Stockholders' Agreement
by and between AT&T PCS, Cash Equity Investors, Management Stockholders and the
Company (the "Joint Venture Stockholders' Agreement").

                                   RECITALS
                                   --------

     WHEREAS, pursuant to the terms of a Share Grant Agreement by and between
Executive and the Company, of even date herewith,  Executive has been granted by
the Company 2,287.21 shares of Series E Preferred Stock and 3,459.45 shares of
Class A Voting Common Stock (collectively, the "Grant Shares"); and

     WHEREAS, the parties desire to enter into this Agreement to impose certain
restrictions with respect to the voting rights of the Grant Shares and the sale,
transfer or other disposition of the Grant Shares on the terms and conditions
hereinafter set forth;

     NOW, THEREFORE, in consideration of the premises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the parties agree as follows:

                                   ARTICLE I
                                   ---------
                             Management of Company
                             ---------------------

     Section 1.1  Board of Directors.  Subject to Section 1.9, the Board of
     -----------  ------------------
Directors shall consist of thirteen (13) directors; provided, however, that the
                                                    --------  -------
number of directors constituting the Board of Directors shall be reduced in the
circumstances set forth in this Section 1.1.  Executive hereby agrees that she
will vote all of her shares of Class A Voting Common Stock Beneficially Owned or
held of record by her (whether now owned or hereafter acquired), in person or by
proxy, to cause the election of directors and thereafter the continuation in
office of such directors as follows:

          (a)  three (3) individuals selected by holders of a Majority in
Interest of
<PAGE>

the Class A Voting Common Stock Beneficially Owned by the Cash Equity Investors,
in their sole discretion;

          (b)  Gerald Vento (so long as he is an officer of the Company and the
Management Agreement shall be in full force and effect);

          (c)  Thomas Sullivan (so long as he is an officer of the Company and
the Management Agreement shall be in full force and effect);

          (d)  two (2) individuals (the "Series A Preferred Directors") elected
by AT&T PCS in its capacity as holder of Series A Preferred Stock so long as it
and TWR Cellular has the right to elect two directors in accordance with the
Restated Certificate; and

          (e)  (i) three (3) individuals selected by the holders of the Voting
Preference Stock, which three (3) individuals shall be reasonably acceptable to
holders of a Majority in Interest of the Class A Voting Common Stock
Beneficially Owned by the Cash Equity Investors, and (ii) three (3) individuals
selected by the holders of the Voting Preference Stock, which three (3)
individuals shall be reasonably acceptable to holders of a Majority in Interest
of the Class A Voting Common Stock Beneficially Owned by the Cash Equity
Investors and AT&T PCS, in the reasonable discretion of such Cash Equity
Investors, on the one hand, and AT&T PCS, on the other hand.

In the event that Mr. Vento or Mr. Sullivan shall cease to be an officer of the
Company, or the Management Agreement shall cease to be in full force and effect,
such individuals shall resign (or the holders of the Voting Preference Stock
shall remove her) from the Board of Directors and the holders of the Voting
Preference Stock shall select a replacement or replacements who shall be
acceptable to a Majority in Interest of the Cash Equity Investors, AT&T PCS ,and
TWR Cellular, in each case in its sole discretion.  In the event that AT&T PCS
shall cease to be entitled to elect the Series A Preferred Directors, such
directors shall resign (or the other directors or Stockholders shall remove
them) from the Board of Directors and the remaining directors shall take such
action so that the number of directors constituting the entire Board of
Directors shall be reduced accordingly.   In the event that any Cash Equity
Investor that has an Unfunded Commitment shall fail to satisfy any such portion
of its Unfunded Commitments when due in accordance with Section 2.2 of the
Securities Purchase Agreement or Section 3.10 of the Joint Venture Stockholders'
Agreement, and such failure is not cured by such Cash Equity Investor within
thirty-five (35) days thereof, then, until such failure is cured, the member of
the Board of Directors who is designated by, or Affiliated with, such Cash
Equity Investor (whether as an employee, partner, member, stockholder or
otherwise) shall resign from the Board of Directors and the Person(s) who
designated such member shall select an individual acceptable to AT&T PCS in its
sole discretion.

          Each of One Liberty, Toronto Dominion and Northwood shall have the
right, so long as it Beneficially Owns at least 5,000 shares of Series C
Preferred Stock and 5,000 shares of Class A Voting Common Stock to designate one
(1) person who shall be entitled to attend the Board of Directors Meeting as an
observer, including meetings during which the Company's annual budget is
discussed and presented.  Such observer shall have

                                      -2-
<PAGE>

the right to receive all of the Board of Directors materials and shall also have
the right to meet quarterly with the management of the Company to consult on the
business affairs of the Company. In addition, so long as AT&T PCS and TWR
Cellular have the right to designate two directors in accordance with the
Restated Certificate, up to two (2) AT&T PCS regional directors (in regions
overlapping with or in geographic proximity to the Territory) shall have the
right to attend each meeting of the Board of Directors as an observer.

          Any nomination or designation of directors and the acceptance thereof
pursuant to Section 1.1 shall be evidenced in writing.

     Section 1.2    Removal; Filling of Vacancies.  Except as set forth in
     ------- ---    -----------------------------
Section 1.1, Executive agrees she will not vote any shares of Class A Voting
Common Stock Beneficially Owned by her, to vote for the removal without cause of
any director designated by any other Stockholder in accordance with Section 1.1.
Any Stockholder or group of Stockholders who has the right to designate any
member(s) of the Board of Directors shall have the right to replace any
member(s) so designated by it (whether or not such member is removed from the
Board of Directors with or without cause or ceases to be a member of the Board
of Directors by reason of death, disability or for any other reason) upon
written notice to the other Stockholders, the Company and the members of the
Board of Directors which notice shall set forth the name of the member(s) being
replaced and the name of the new member(s); provided, however, that if a
                                            --------  -------
director designated pursuant to (x) Section 1.1(e)(i) is replaced by the holders
of Voting Preference Stock, the individual designated by the holders of Voting
Preference Stock to replace such director must be acceptable to the Cash Equity
Investors in accordance with the terms of Section 1.1(e)(i), and (y) Section
1.1(e)(ii) is replaced by the holders of Voting Preference Stock, the individual
designated by the holders of Voting Preference Stock to replace such director
must be acceptable to the Cash Equity Investors and AT&T PCS in accordance with
the terms of Section 1.1(e)(ii).  Executive agrees to vote her shares of Class A
Voting Common Stock, or shall otherwise take any action as is necessary, to
cause the election of any successor director designated by any Stockholder
pursuant to this Section 1.2.  The holders of the Voting Preference Stock, agree
that during the three (3) year period commencing on the date hereof they will
not (i) remove the individuals nominated by them pursuant to Sections 1.1(e)(i)
and 1.1(e)(ii), or (ii) nominate for election any individuals other than the
individuals initially selected by them and approved in accordance with said
Sections 1.1(e)(i) and (e)(ii), subject to the agreements of such individuals to
serve on the Board of Directors.

     Section 1.3    Initial Directors.  In accordance with Section 228 of  the
     ------- ---    -----------------
Delaware General Corporation  Law and pursuant to the provisions of Section 1.1
of this Agreement, Executive hereby consents to the election of and does hereby
elect in accordance with Section 1.1 hereof the persons designated in Schedule
II hereof as directors of the Company.  Such persons shall hold office until
their successors are duly elected and qualified, except as otherwise provided in
this Agreement, the Joint Venture Stockholders'

                                      -3-
<PAGE>

Agreement or the Restated Certificate or the Restated By-Laws.

     Section 1.4    Business of the Company.  The business and affairs of  the
     ------- ---    -----------------------
Company shall be conducted by the officers of the Company under the supervision
of the Board of Directors, substantially in accordance with operating and
capital expenditure budgets approved by the Board of Directors from time to
time.  Executive hereby approves the five (5) year build-out plan for the
Business and the capital budget for the first two (2) years of the Business in
the forms attached as Schedule IX of the Joint Venture Stockholders' Agreement.

     Section 1.5    Required Votes.  (a)  All actions of the Board of Directors
     ------- ---    --------------
of the Company shall require the vote of at least a majority of the entire Board
of Directors, unless otherwise required by Law,  the Restated Certificate, the
Restated By-Laws, the Joint Venture Stockholders' Agreement or this Agreement.

                    (b)  None of the following transactions or actions shall be
entered into or taken by the Company, unless (i) voted for or consented to by
the vote of at least three (3) of the five (5) directors designated pursuant to
Sections 1.1(a) and (d) and six (6) of the eight (8) directors designated
pursuant to Sections 1.1(b), (c) and (e) of the Board of Directors of the
Corporation.

                    1.   The sale, transfer, assignment or other disposition of
                         any material portion of the assets of the Company or
                         any of its Subsidiaries other than in the ordinary
                         course of business;

                    2.   The merger, combination or consolidation of the Company
                         or any of its Subsidiaries with or into any other
                         entity, regardless of whether the Company or any such
                         Subsidiary is the surviving entity in any such merger,
                         combination or consolidation, the acquisition of any
                         businesses by the Corporation, the formation of any
                         partnership or joint venture involving the Company, or
                         the liquidation, dissolution or winding up of the
                         Company or any of its Subsidiary;

                    3.   Any offering or issuance of additional shares of
                         Preferred Stock, Voting Preference Stock or Common
                         Stock of, or any other securities or ownership
                         interests in, the Company or any of its Subsidiaries,
                         including, without limitation, warrants, options or
                         other rights convertible or exchangeable into Preferred
                         Stock, Voting Preference Stock or Common Stock of, or
                         other securities or ownership interests in, the Company
                         or any of its Subsidiaries except as contemplated by
                         the Securities Purchase Agreement or the declaration of
                         any dividends thereon.

                    4.   The repurchase by the Company of any Company Stock

                                      -4-
<PAGE>

                         (other than shares of Class A Voting Common Stock or
                         Series E Preferred Stock purchased from former
                         employees of the Company);

                    5.   The authorization or adoption of any amendment to the
                         Restated Certificate, Restated By-laws or any
                         constituent document of the Company or any of its
                         Subsidiaries;

                    6.   The hiring or termination of any executive officer of
                         the Company;

                    7.   The approval of, or amendment to, any operating or
                         capital budget of the Company or any of its
                         Subsidiaries;

                    8.   The incurrence by the Company or any of its
                         Subsidiaries, whether directly or indirectly, of any
                         indebtedness for borrowed money or capital leases in
                         any calendar quarter in excess of $1,000,000;

                    9.   Any agreement or arrangement, written or oral, to pay
                         any director, officer, agent or employee of the Company
                         or any of its Subsidiaries $200,000 or more on an
                         annual basis or any loan, lease, contract or other
                         transaction with any employee of the Company or any of
                         its Subsidiaries with an annual salary in excess of
                         $200,000 or with any director or officer of the Company
                         or any member of any such Person's Immediate Family;

                    10.  The making of, or commitment to make, any capital
                         expenditures involving a payment or liability in any
                         one year of $1,000,000 or more in the aggregate by the
                         Company or any of its Subsidiaries;

                    11.  The initiation of any bankruptcy proceeding,
                         dissolution or liquidation of the Company or any of its
                         Subsidiaries; and

                    12.  The entering into any contract, agreement or
                         understanding to do any of the foregoing.

     Notwithstanding the foregoing, any amendment, modification, waiver or
termination of the Management Agreement shall require the affirmative vote or
consent of a majority of the Board of Directors (excluding Messrs. Vento and
Sullivan).

     Section 1.6    Transactions between the Company and the Stockholders or
     ------- ---    --------------------------------------------------------
their Affiliates.  Except for this Agreement, the Joint Venture Stockholders'
- ----------------
Agreement, the Securities Purchase Agreement and the Related Agreements and the
transactions contemplated hereby and thereby and any other arms-length
agreements or transactions

                                      -5-
<PAGE>

entered into from time to time between the Company and its Subsidiaries, on the
one-hand, and AT&T PCS and its Affiliates, on the other hand, no Stockholder or
any Affiliate of any Stockholder shall enter into any transaction with the
Company or any Subsidiary of the Company unless such transaction is approved by
a majority of the disinterested members of the Board of Directors. For purposes
hereof, a director shall be deemed to be disinterested with respect to any such
transaction if such director was not designated a director by the Stockholder
that (or an Affiliate of which) proposed to engage in such transaction with the
Company or any Subsidiary of the Company and such member is not an officer,
director, partner, employee, stockholder of, or consultant to, such Stockholder
or any of its Affiliates; provided, however, that for purposes of this Section
1.6 the directors designated pursuant to Section 1.1(e) (ii) and Section 1.9(a)
(ii) shall not be deemed to have been designated by the Cash Equity Investors,
AT&T PCS or the holders of the Voting Preference Stock.

     Section 1.7    Board Committees.  An executive committee of the Board of
     ------- ---    ----------------
Directors  (or a committee of the Board of Directors having substantially the
same mandate and powers of such a committee) shall be established, which
committee shall be comprised of five (5) individuals as follows:  one (1) of the
Series A Preferred Directors, one of the directors selected by the Cash Equity
Investors pursuant to Section 1.1(a), Mr. Vento (so long as he is an officer of
the Company), one (1) of the directors selected pursuant to Section 1.1(e)(i)
and one (1) of the directors selected pursuant to Section 1.1(e)(ii).

     Section 1.8    Voting Agreements and Voting Trusts.  Except as disclosed on
     ------- ---    -----------------------------------
Schedule X of the Joint Venture Stockholders' Agreement or referred to in this
Section 1.8, Executive agrees that she will not, directly or indirectly, deposit
any of her shares of Series E Preferred Stock and/or Common Stock in a voting
trust or other similar arrangement or, except as expressly provided herein,
subject such shares to a voting agreement or other similar arrangements.  Each
of AT&T PCS and TWR Cellular covenants and agrees that it will not, directly or
indirectly, enter into a voting or similar agreement with any Transferee of
shares of Series A Preferred Stock.  Each holder of Voting Preference Stock
shall vote all shares of Voting Preference Stock owned by her in accordance with
the vote of holders of a majority of the shares of Voting Preference Stock.

     Section 1.9    Board of Directors After Voting Preference Stock.  Effective
     -----------    ------------------------------------------------
on the later to occur of (x) the date that holders of shares of Voting
Preference Stock shall vote as a class with holders of Class A Voting Common
Stock, and (y) immediately prior to the IPO Date, the Board of Directors shall
consist of seven (7) directors, Executive hereby agrees that she will vote all
of the shares Class A Voting Common Stock owned or held of record by her
(whether now owned or hereafter acquired), in person or by proxy, to cause the
election of directors as follows:

             (a)    (i) two (2) individuals selected by holders of a Majority in
Interest of the Common Stock Beneficially Owned by the Cash Equity Investors, in
their sole discretion and (ii) two (2) additional individuals selected by
holders of a Majority in Interest of the Common Stock held by the Cash Equity
Investors, which two (2) additional individuals shall be acceptable to the
Management Stockholders (in each case so long as each is an officer of the
Company) and AT&T PCS, in the discretion of the Management

                                      -6-
<PAGE>

Stockholders, on the one hand, and AT&T PCS, on the other hand;

             (b)    Two (2) individuals employed by the Company and selected by
the Management Stockholders (in each case so long as the Management Stockholders
are officers of the Company), one of whom shall be acceptable to holders of a
Majority in Interest of the Class A Voting Common Stock Beneficially Owned by
the Cash Equity Investors and AT&T PCS, in the reasonable discretion of such
Cash Equity Investors, on the one hand, and AT&T PCS on the other hand; and

             (c)    One (1) individual elected by AT&T PCS in its capacity as
holder of Series A Preferred Stock so long as it has the right to elect one
director in accordance with the Restated Certificate.

     In the event that an individual selected by the Management Stockholders
pursuant to clause (b) above shall cease to be an officer of the Company, such
            ----------
individual shall resign (or the other directors or Stockholders shall remove
her) from the Board of Directors and the Board of Directors shall select a
replacement from the executives of the Company who shall be reasonably
acceptable to a Majority in Interest of the Cash Equity Investors, on the one
hand, and AT&T PCS, on the other hand, in each case in its sole discretion.  In
the event that AT&T PCS and TWR Cellular shall cease to be entitled to elect one
(1) Series A Preferred Director, such director shall resign (or the other
directors or Stockholders shall remove her) from the Board of Directors and the
remaining directors shall take such action so that the number of directors
constituting the entire Board of Directors shall be reduced accordingly.


                                  ARTICLE II
                                  ----------
                              Transfer of Shares
                              ------------------

       Section 2.1  General.
       ------- ---

             (a)    Executive agrees that at all times prior to the IPO Date she
shall not, directly or indirectly, transfer, sell, assign, pledge, tender or
otherwise grant, create or suffer to exist a lien in or upon, give, place in
trust, or otherwise voluntarily or involuntarily (including transfers by
testamentary or intestate succession) dispose of by operation of law, offer or
otherwise (any such action being referred to herein as a "Transfer"), any of the
Grant Shares which have vested (the "Vested Shares"), except after complying
first with Section 2.2 and next with Section 2.3, if applicable.

             (b)    Executive agrees that at all times on and after the IPO Date
she shall not, directly or indirectly, transfer any of the Vested Shares except
after complying first with Section 2.2 and next with Section 2.3, if applicable,
provided, however, Executive shall not be required to comply with Section 2.2 if
- --------  -------
she first complies with the applicable provisions of Section 2.4 in connection
with Transfers of Common Stock pursuant to Rule 144, or in any single
transaction or series of related transactions to one or more persons which
results in the Transfer by Executive (together with any other stockholder of the
Company participating in such single transaction or series of related
transactions) of not

                                      -7-
<PAGE>

more than ten percent (10%) of the Common Stock on a fully diluted basis
(excluding for such purposes the Series A Preferred Stock).

             (c)    Prior to the IPO Date, Executive agrees that she will not
transfer any Vested Shares of Preferred Stock held by her except after complying
with Section 2.2; it being understood that on and after the IPO Date, Executive
may transfer her Vested Shares of Preferred Stock free from any restrictions on
transfer of such shares under this Agreement, but subject at all times to the
restrictions imposed by federal and state securities laws.

     Section 2.2    Right of  First Offer.
     ------- ---

             (a)    If Executive desires to Transfer any or all of her Vested
Shares of Preferred Stock or Common Stock (collectively, the "Offered Shares"),
she shall give written notice (the "Offer Notice") to the Company and to each
Stockholder entitled to become the First Offeree of such Offered Shares, as
determined below. Each Offer Notice shall describe in reasonable detail the
number of shares of each class of Offered Shares, the cash purchase price
requested and all other material terms and conditions of the proposed Transfer.
The Offer Notice shall constitute an irrevocable offer (a "First Offer") to sell
all (and not less than all) of the Offered Shares to the First Offeree(s) at a
cash price equal to the price contained in such Offer Notice and upon the same
terms as the terms contained in such Offer Notice. The First Offeree shall have
the irrevocable right and option, exercisable as provided below, but not the
obligation, to accept the First Offer as to all (and not less than all) of the
Offered Shares. The "First Offeree" shall be AT&T PCS.

             (b)    The option provided for herein shall be exercisable by the
First Offeree by giving written notice (a "Purchase Notice"), that the First
Offeree desires to purchase all (and not less than all) of such Offered Shares
from the Seller, to the Stockholders (other than the Seller) and the Company not
later than ten (10) business days (the "First Offer Period") after the date of
the Offer Notice. The purchase of the Offered Shares by the First Offeree shall
be closed at the principal executive offices of the Company on a date specified
by the First Offeree upon at least five (5) business days' notice, that is
within thirty (30) days after the expiration of the First Offer Period;
provided, however, that if such purchase is subject to the consent of the FCC or
- --------  -------
any public service or public utilities commission, the purchase of the Offered
Shares shall be closed on the first business day after all such consents shall
have been obtained by Final Order.

             (c)    If the First Offeree declines (which shall include the
failure to give timely notice of acceptance) to purchase all of the Offered
Shares subject to the First Offer within the First Offer Period, the Seller
shall have the right (for a period of ninety (90) days following the expiration
of the First Offer Period) to consummate the sale of the Offered Shares to any
person; provided, however, that the purchase price of such Offered Shares
        --------  -------
payable by such person must be at least equal to the cash purchase price thereof
set forth in the Offer Notice and all other terms and conditions of any such
sale shall not be more beneficial to such third party than those contained in
the Offer Notice. If any Offered Shares are not sold pursuant to the provisions
of this Section 2.2 prior to the expiration of the ninety (90) day period
specified in the immediately preceding sentence, such Offered

                                      -8-
<PAGE>

Shares shall become subject once again to the provisions and restrictions
hereof; provided, however, that if such purchase is subject to the consent of
        --------  -------
the FCC or any public service or public utilities commission, the purchase of
the Offered Shares shall be closed on the first business day after all such
consents shall have been obtained by Final Order.

             (d)    The purchase price of any Offered Shares Transferred
pursuant to this Section 2.2 shall be payable in cash by certified bank check or
by wire transfer of immediately available funds.

     Section 2.3    Rights of Inclusion.
     -----------

             (a)    Executive shall not, directly or indirectly, Transfer, in
any single transaction or series of related transactions to one or more Persons
(each such Person an "Inclusion Event Purchaser") shares of any series or class
of stock issued by the Company (collectively, "Inclusion Stock") in
circumstances in which, after giving effect to such Transfer, whether acting
alone or in concert with any other Stockholder (such parties referred to herein
as "Selling Stockholders") would result in such Selling Stockholder(s)
Transferring twenty-five percent (25%) or more of the outstanding shares of any
such class of Inclusion Stock outstanding on the date of such proposed Transfer
on a fully diluted basis (an "Inclusion Event"), unless the terms and conditions
of such sale to such Inclusion Event Purchaser shall include an offer to AT&T
PCS, the Cash Equity Investors, and the Management Stockholders (each, an
"Inclusion Event Offeree") to Transfer to such Inclusion Event Purchasers up to
that number of shares of any class of Inclusion Stock then beneficially owned
(as defined in the Securities Exchange Act of 1934) by each Inclusion Event
Offeree that bears the same proportion to the total number of shares of
Inclusion Stock at that time beneficially owned (without duplication) by each
such Inclusion Event Offeree as the number of shares of Inclusion Stock being
Transferred by the Selling Stockholders (including shares of Inclusion Stock
theretofore Transferred if in any applicable series of related transactions)
bears to the total number of shares of Inclusion Stock at the time beneficially
owned (without duplication) by the Selling Stockholders (including shares of
Inclusion Stock theretofore Transferred if in any applicable series of related
transactions). If the Selling Stockholders receive a bona fide offer from an
Inclusion Event Purchaser to purchase shares of Inclusion Stock in circumstances
in which, after giving effect to such sale would result in an Inclusion Event,
and which offer such Selling Stockholders wish to accept, the Selling
Stockholders shall then cause the Inclusion Event Purchaser's offer to be
reduced to writing (which writing shall include an offer to purchase shares of
Inclusion Stock from each Inclusion Event Offeree according to the terms and
conditions set forth in this Section 2.3) and the Selling Stockholders shall
send written notice of the Inclusion Event Purchaser's offer (the "Inclusion
Notice") to each Inclusion Event Offeree, which Inclusion Notice shall specify
(i) the names of the Selling Stockholders, (ii) the names and addresses of the
proposed acquiring Person, (iii) the amount of shares proposed to be Transferred
and the price, form of consideration and other terms and conditions of such
Transfer (including, if in a series of related transactions, such information
with respect to shares of Inclusion Stock theretofore Transferred), (iv) that
the acquiring Person has been informed of the rights provided for in this
Section 2.3 and has agreed to purchase shares of Inclusion Stock in accordance
with the terms hereof, and (v)

                                      -9-
<PAGE>

the date by which each other Selling Stockholder may exercise its respective
rights contained in this Section 2.3, which date shall not be less than thirty
(30) days after the giving of the Inclusion Notice. The Inclusion Notice shall
be accompanied by a true and correct copy of the Inclusion Event Purchaser's
offer. At any time within thirty (30) days after receipt of the Inclusion
Notice, each Inclusion Event Offeree may accept the offer included in the
Inclusion Notice for up to such number of shares of Inclusion Stock as is
determined in accordance with this Section 2.3, by furnishing written notice of
such acceptance to each Selling Stockholder, and delivering, to an escrow agent
(which shall be a bank or a law or accounting firm designated by the Inclusion),
on behalf of the Selling Stockholders, the certificate or certificates
representing the shares of Inclusion Stock to be sold pursuant to such offer by
each Inclusion Event Offeree, duly endorsed in blank, together with a limited
power-of-attorney authorizing the escrow agent, on behalf of the Inclusion Event
Offeree, to sell the shares to be sold pursuant to the terms of such Inclusion
Event Purchaser's offer.

     In the event that the Inclusion Event Purchaser does not agree to purchase
all of the shares of Inclusion Stock proposed to be sold by the Selling
Stockholders and the Inclusion Event Offerees, then each Selling Stockholder and
Inclusion Event Offeree shall have the right to sell to the Inclusion Event
Purchaser that number of shares of Inclusion Stock as shall be equal to (x) the
number of shares of Inclusion Stock which the Inclusion Event Purchaser has
agreed to purchase times (y) a fraction, the numerator of which is the number of
shares of Inclusion Stock beneficially owned (without duplication) by such
Selling Stockholder or Inclusion Event Offeree and the denominator of which is
the aggregate number of shares of Inclusion Stock beneficially owned (without
duplication) by all Selling Stockholders and Inclusion Event Offerees.  If any
Inclusion Event Offeree desires to sell less than its proportionate amount of
shares of  Inclusion Stock that it is entitled to sell pursuant to this Section
2.3, then the Selling Stockholders and the remaining Inclusion Event Offerees
shall have the right to sell to the Inclusion Event Purchaser an additional
amount of shares of Inclusion Stock as shall be equal to (x) the number of
shares of Inclusion Stock not being sold by any such Inclusion Event Purchasers
times (y) a fraction, the numerator of which is the number of shares of
Inclusion Stock owned such Selling Stockholder or remaining Inclusion Event
Offeree and the denominator of which is the aggregate number of shares of
Inclusion Stock beneficially owned (without duplication) by all Selling
Stockholders and remaining Inclusion Event Offerees.  Such process shall be
repeated in series until all of the remaining Inclusion Event Offerees agree to
sell their remaining proportionate number of shares of Inclusion Stock.

             (b)    The purchase from each Inclusion Event Offeree pursuant to
this Section 2.3 shall be on the same terms and conditions, including the price
per share received by the Selling Stockholders and stated in the Inclusion
Notice provided to each Inclusion Event Offeree.

             (c)    Simultaneously with the consummation of the sale of the
shares of Inclusion Stock of the Selling Stockholders and each Inclusion Event
Offeree to the Inclusion Event Purchaser pursuant to the Inclusion Event
Purchaser's offer, the Selling Stockholders shall notify each Inclusion Event
Offeree and shall cause the purchaser to

                                     -10-
<PAGE>

remit to each Inclusion Event Offeree the total sales price of the shares of
Inclusion Stock held by each Inclusion Event Offeree sold pursuant thereto and
shall furnish such other evidence of the completion and time of completion of
such sale and the terms thereof as may be reasonably requested by each Inclusion
Event Offeree.

             (d)    If within thirty (30) days after receipt of the Inclusion
Notice, an Inclusion Event Offeree has not accepted the offer contained in the
Inclusion Notice, such Inclusion Event Offeree shall be deemed to have waived
any and all rights with respect to the sale described in the Inclusion Notice
(but not with respect to any subsequent sale, to the extent this Section 2.3 is
applicable to such subsequent sale) and the Selling Stockholders shall have
sixty (60) days in which to sell not more than the number of shares of Inclusion
Stock described in the Inclusion Notice, on terms not more favorable to the
Selling Stockholders than were set forth in the Inclusion Notice; provided,
                                                                  --------
however, that if such purchase is subject to the consent of the FCC or any
- -------
public service or public utilities commission, the purchase of the Offered
Shares shall be closed on the first business day after all such consents shall
have been obtained by Final Order.

     Section 2.4    Right of First Negotiation. In the event that Executive
     ------- ---    --------------------------
desires to Transfer any shares of Common Stock following the IPO Date in a
Transfer described in Section 2.1(b), she shall give written notice thereof to
AT&T PCS, such notice to specify, among other things, the number of shares that
she desires to sell.  For the applicable first negotiation period hereinafter
set forth, AT&T PCS shall have the exclusive right to negotiate with Executive
with respect to the purchase of such shares; it being understood and agreed that
such exclusive right shall not be deemed to be a right of first offer or right
of first refusal for the benefit of AT&T PCS and Executive shall have the right
to reject any offer made by AT&T PCS during such applicable first negotiation
period.  Upon the expiration of such applicable first negotiation period,
Executive shall have the right (for the applicable offer period hereinafter set
forth with respect to each applicable first negotiation period), following the
expiration of such applicable first negotiation period, to offer and sell such
shares included in such written notice on such terms and conditions as shall be
acceptable to such Executive in her sole discretion.  If any of such shares
included in such written notice are not sold pursuant to the provisions of this
Section 2.4 prior to the expiration of  the applicable offer period, such shares
shall become subject once again to the provision and restrictions hereof.

     If Executive desires to Transfer shares of Common Stock pursuant to Rule
144, the applicable first negotiation period shall be three (3) hours (it being
understood and agreed that Executive shall, in addition to giving written notice
of such proposed Transfer by facsimile, use commercially reasonable efforts to
contact AT&T PCS by telephone) and the applicable offer period upon the
expiration of such first negotiation period shall be five (5) business days, and
in any single transaction or series of related transactions to one or more
persons which will result in the Transfer by Executive (together with any other
Stockholder participating in such single transaction or series of related
transactions) of not more than ten percent (10%) of the Common Stock on a fully
diluted basis (excluding for such purposes the Series A Preferred Stock), the
applicable first negotiation period shall be one (1) business day, so long as
notice of such proposed Transfer is given to AT&T PCS

                                     -11-
<PAGE>

prior to 9:00 A.M. on the day prior to the date of such proposed Transfer (it
being understood and agreed that Executive shall, in addition to giving written
notice of such proposed Transfer by facsimile, use commercially reasonable
efforts to contact AT&T PCS by telephone) and the applicable offer period upon
the expiration of such first negotiation period shall be ten (10) business days.

     Section 2.5    Additional Conditions to Permitted Transfers.
     ------- ---

             (a)    Upon any Transfer pursuant to Section 2.2 or Section 2.3,
each Transferee that is not a party hereto shall, prior to such Transfer, agree
in writing to be bound by all of the provisions of this Agreement applicable to
Executive (and shall thereby become a Stockholder for all purposes of this
Agreement). Any Transfer without compliance with such provisions of this
Agreement shall be null and void and such Transferee shall have no rights as a
Stockholder of the Company.

             (b)    Notwithstanding anything to the contrary contained in this
Agreement, Executive agrees that she will not effect a Transfer of shares of
Company Stock to anyone prohibited by the Company; provided, however, that
                                                   --------  -------
nothing contained in this Section 2.5(b) shall be construed to prohibit a
Transfer of Common Stock by Executive after the IPO Date pursuant to an
underwritten registration or in accordance with the provisions of Rule 144.

     Section 2.6    Representations and Warranties. A Stockholder purchasing
     ------- ---    ------------------------------
shares of Company Stock pursuant to Section 2.2 shall be entitled to receive
representations and warranties from the transferring Stockholder that such
Stockholder has the authority (corporate or otherwise) to sell such shares, is
the sole owner of such shares, and has good and valid title to such shares, free
and clear of any and all Liens (other than pursuant to this Agreement, the
Restated Certificate or any Related Agreement), and that the sale of such shares
does not violate any agreement to which it is a party or by which it is bound.

     Section 2.7    Stop-Transfer.
     ------- ---

             (a)    The Company agrees not to effect any Transfer of shares of
Company Stock by Executive whose proposed Transfer is subject to Sections 2.2,
2.3 or 2.4 until it has received evidence reasonably satisfactory to it that the
rights provided to any other Stockholders pursuant to such Sections, if
applicable to such Transfer, have been complied with and satisfied in all
respects. No Transfer of any shares of Preferred Stock and/or Common Stock shall
be made except in compliance with all applicable securities laws. Any Transfer
made in violation of this Agreement shall be null and void.

                                  ARTICLE III
                                  -----------
                    After-Acquired Shares; Recapitalization
                    ---------------------------------------

       Section 3.1  After Acquired Shares; Recapitalization
       ------- ---

             (a)    All of the provisions of this Agreement shall apply to all
of the shares of Equity Securities now owned or hereafter issued or transferred
to Executive or to

                                     -12-
<PAGE>

her Affiliated Successors in consequence of any additional issuance, purchase,
exchange or reclassification of shares of Equity Securities, corporate
reorganization, or any other form of recapitalization, or consolidation, or
merger, or share split, or share dividend, or which are acquired by Executive or
her Affiliated Successors in any other manner.

             (b)    Whenever the number of outstanding shares of Equity
Securities is changed by reason of a stock dividend or a subdivision or
combination of shares effected by a reclassification of shares, each specified
number of shares referred to in this Agreement shall be adjusted accordingly.

     Section 3.2    Amendment of Restated Certificate.  Whenever the number of
     ------- ---    ---------------------------------
shares of authorized Common Stock is not sufficient in order to issue shares of
Common Stock upon conversion of Preferred Stock in accordance with the Restated
Certificate, (i) the Company shall promptly amend the Restated Certificate in
order to authorize a sufficient number of shares of Common Stock, and (ii)
Executive agrees to vote her shares of Preferred Stock and Common Stock in favor
of such amendment.

                                  ARTICLE IV
                                  ----------
                              Share Certificates
                              ------------------

     Section 4.1    Restrictive Endorsements; Replacement Certificates.  Each
     ------- ---    --------------------------------------------------
certificate representing the shares of Equity Securities now or hereafter held
by a Stockholder (including any such certificate delivered upon conversion of
the Preferred Stock) or delivered in substitution or exchange for any of  the
foregoing certificates shall be stamped with legends in substantially the
following form:

             (a)    "The shares represented by this Certificate are subject to a
Stockholders' Agreement dated as of July 17, 1998, a copy of which is on file at
the offices of the Company and will be furnished by the Company to the holder
hereof upon written request.  Such Stockholders' Agreement provides, among other
things, for the granting of certain restrictions on the sale, transfer, pledge,
hypothecation or other disposition of the shares represented by this
Certificate, and that under certain circumstances, the holder hereof may be
required to sell the shares represented by this Certificate.  By acceptance of
this Certificate, each holder hereof agrees to be bound by the provisions of
such Stockholders' Agreement.  The Company reserves the rights to refuse to
transfer the shares represented by this Certificate unless and until the
conditions to transfer set forth in such Stockholders' Agreement have been
fulfilled"; and

             (b)    "The securities represented by this Certificate have been
acquired for investment and have not been registered under the Securities Act of
1933, as amended (the "Act"), or under any state securities or "Blue Sky" laws.
Said securities may not be sold, transferred, assigned, pledged, hypothecated or
otherwise disposed of, unless and until registered under the Act and the rules
and regulations thereunder and all applicable state securities or "Blue Sky"
laws or exempted therefrom under the Act and all applicable state securities or
"Blue Sky" laws."

                                     -13-
<PAGE>

     Executive agrees that she will deliver all certificates for shares of
Equity Securities owned by her to the Company for the purpose of affixing such
legends thereto.

             (c)    Upon receipt of evidence reasonably satisfactory to the
Company of the loss, theft, destruction or mutilation of any certificate
representing shares of Equity Securities subject to this Agreement and of a bond
or other indemnity reasonably satisfactory to the Company, and upon
reimbursement to the Company of all reasonable expenses incident thereto, and
upon surrender of such certificate, if mutilated, the Company will make and
deliver a new certificate of like tenor in lieu of such lost, stolen, destroyed
or mutilated certificate.

                                   ARTICLE V
                                   ---------

                                 Miscellaneous
                                 -------------

     Section 5.1    Notices.  All notices or other communications hereunder
     ------- ---    -------
shall be in writing and shall be given (and shall be deemed to have been duly
given upon receipt) by delivery in person, by facsimile transmission, or by
registered or certified mail (return receipt requested), postage prepaid, with
an acknowledgment of receipt signed by the addressee or an authorized
representative thereof, addressed as follows (or to such other address for a
party as shall be specified by like notice; provided that notice of a change of
address shall be effective only upon receipt thereof:

             If to AT&T PCS or TWR Cellular:

                    c/o AT&T Wireless Services, Inc.
                    5000 Carillon Point
                    Kirkland, Washington 98033
                    Attention: William W. Hague
                    Telephone: (425) 828-8461
                    Facsimile: (425) 828-8451

             With a copy to:

                    AT&T Corp.
                    295 North Maple Avenue
                    Basking Ridge, NJ 07920
                    Attention: Corporate Secretary
                    Telephone:
                    Facsimile: (908) 953-4657

                    and

                    Friedman Kaplan & Seiler LLP
                    875 Third Avenue, 8th Floor
                    New York, New York 10022
                    Attention: Daniel M. Taitz

                                     -14-
<PAGE>

                    Telephone: (212) 833-1109
                    Facsimile: (212) 355-6401

                    and

                    Rubin Baum Levin Constant & Friedman
                    30 Rockefeller Plaza
                    New York, New York 10112
                    Attention: Gregg S. Lerner, Esq.
                    Telephone: (212) 698-7705
                    Facsimile: (212) 698-7825

             If to a Cash Equity Investor, to its address set forth on Schedule
I.

          With a copy to:

                    Mayer, Brown & Platt
                    1675 Broadway
                    New York, New York 10019
                    Attention: Mark S. Wojciechowski, Esq.
                    Telephone: (212) 506-2525
                    Facsimile: (212) 262-1910

             If to a Management Stockholder or to the Company, to the address
set forth in the Securities Purchase Agreement. If to Executive, to the address
set forth in the Share Grant Agreement.

             With a copy to each other party sent to the addresses set forth in
this Section 5.1.

     Section 5.2    Waiver   failure or delay on the part of any Stockholder in
     ------- ---    ------
exercising any right, power or privilege hereunder, nor any course of dealing
between the Company and any Stockholder shall operate as a waiver thereof nor
shall any single or partial exercise of any right, power or privilege hereunder
preclude the simultaneous or later exercise of any other right, power or
privilege. The rights and remedies herein expressly provided are cumulative and
not exclusive of any rights and remedies which any Stockholder would otherwise
have. No notice to or demand on the Company in any case shall entitle the
Company to any other or further notice or demand in similar or other
circumstances or constitute a waiver of the rights of the Stockholders or any of
them to take any other or further action in any circumstances without notice or
demand.

     Section 5.3    Modification.  The terms and provisions of any change or
     ------- ---    ------------
modification to the Joint Venture Stockholders' Agreement made effective
pursuant to Section 12(b) of the Joint Venture Stockholders' Agreement, shall be
reflected in full in this Agreement as of the same was approved by the parties
hereto.

                                     -15-
<PAGE>

     Section 5.4    Obligations Several.  The obligations of each Stockholder
     ------- ---    -------------------
under this Agreement shall be several with respect to each such Stockholder.

     Section 5.5    Governing Law.  This Agreement shall be governed and
     ------- ---    -------------
construed in accordance with the law of the State of Delaware.

     Section 5.6    Benefit and Binding Effect; Severability.  This Agreement
     ------- ---    ----------------------------------------
shall be binding upon and shall inure to the benefit of the Company, its
successors and assigns, and each of the Stockholders and their respective
executors, administrators and personal representatives and heirs and permitted
assigns.  If any term or other provision of this Agreement is invalid, illegal
or incapable of being enforced by any law or public policy or any listing
requirement applicable to the Common Stock, all other terms and provisions of
this Agreement shall nevertheless remain in full force and effect. Upon such
determination that any term or other provision is invalid, illegal or incapable
of being enforced, the parties hereto affected by such determination in any
material respect shall negotiate in good faith to modify this Agreement so as to
effect the original intent of the parties as closely as possible in an
acceptable manner in order that the provisions hereof are given effect as
originally contemplated to the greatest extent possible.

     Section 5.7    Counterparts.  This Agreement may be executed in two or more
     ------- ---    ------------
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

                                     -16-
<PAGE>

          IN WITNESS WHEREOF, each of the parties has executed or consent this
Agreement to be executed by its duly authorized officers as of the date first
written above.

                                   TELECORP PCS, INC.


                                   By: /s/ Thomas Sullivan
                                       --------------------------------
                                   Name:  Thomas Sullivan
                                   Title: Executive Vice President



EXECUTIVE:                              /s/ Julie Dobson
                                        -------------------------------
                                        Julie Dobson


By execution hereof, the Company and Executive agree that AT&T PCS, TWR
Cellular, the Cash Equity Investors and the Management Stockholders are to be
bound by the obligations in, and entitled to the benefits of, this Agreement by
virtue of their respective execution of that certain Agreement by and among them
and the Company dated as of the date of the Joint Venture Stockholders'
Agreement.

                                     -17-
<PAGE>

                                                                      Schedule I

                             Cash Equity Investors
                             ---------------------

CB Capital Investors, L.P.
380 Madison Avenue, 12th Floor
New York, NY 10017
Attn: Michael Hannon
Fax: (212) 622-3101


Equity-Linked Investors-II
Private Equity Investors III, L.P.
540 Madison Avenue, 36th Floor
New York, NY 10022
Attn: Rohit M. Desai
Fax: (212) 752-7807

Hoak Communications Partners, L.P.
HCP Capital Fund, L.P.
One Galleria Tower
13355 Noel Road, Suite 1050
Dallas, Texas 75240
Attn: James Hoak
Fax: (972) 960-4899

Whitney Equity Partners, L.P.
J.H. Whitney III, L.P.
Whitney Strategic Partners III, L.P.
177 Broad Street, 15th Floor
Stamford, Connecticut 06901
Attn: William Laverack, Jr.
Fax: (203) 973-1422

Entergy Technology Holding Company
Three Financial Centre
900 South Shackleford Road
Suite 210
Little Rock, Arkansas 72211
Attn: John A. Brayman
Fax: (501) 954-5095
<PAGE>

Media/Communications Partners III Limited Partnership
Media/Communications Investors Limited Partnership
75 State Street, Suite 2500
Boston, MA 02109
Attn: James F. Wade
Fax: (617) 345-7201

One Liberty Fund III, L.P.
Boston, MA  02109
Attn: Joseph T. McCullen
Fax: (617) 423-1765

Toronto Dominion Investments, Inc.
31 West 52nd Street
New York, NY 10019-6101
Attn: Brian Rich
Fax: (212) 974-8429

(with a copy to)
Toronto Dominion Investments, Inc.
909 Fannin
Suite 1700
Houston, Texas 77010
Attn: Martha Gariepy
Fax: (713) 652-2647

Northwood Ventures LLC
Northwood Capital Partners LLC
485 Underhill Boulevard, Suite 205
Syosset, New York 11791-3419
Attn: Peter Schiff
Fax: (516) 364-0879
<PAGE>

                                                                     Schedule II

                               Initial Directors
                               -----------------

                                 William Hague
                                Thomas Sullivan
                                Michael Hannon
                                  James Hoak
                                  Rohit Desai
                                 William Bandt
                               Joseph O'Donnell
                                   Kurt Maas
                                 Gerald Vento
                                  James Wade
                             William Laverack, Jr.
                                Scott Anderson
                                William Kussell

<PAGE>

                                                                   Exhibit 10.25


                             SEPARATION AGREEMENT
                             --------------------

     It is hereby agreed by and between Robert Dowski ("Dowski") and TeleCorp
PCS, Inc. and TeleCorp Communications, Inc. (collectively "TeleCorp") for good
and sufficient consideration more fully described below ("Agreement"), that:

1.   Employment Status.

     Dowski's employment with TeleCorp shall cease on March 8, 1999 (the
"Separation Date"). Dowski's regular salary and benefits will likewise cease as
of the Separation Date, including any entitlement he had or might have had under
any TeleCorp provided benefit programs, except as required by federal or state
law or otherwise described below.  The Separation Date shall be the date of the
"qualifying event" under the Consolidated Budget Reconciliation Act of 1985
("COBRA"), and Dowski will receive COBRA information under separate cover.

2.   Consideration

     In consideration of Dowski's agreement in paragraphs 8(c), 5(a), 6 and 7,
and the other consideration provided herein, and provided that Dowski shall not
have taken any action to revoke this agreement, TeleCorp will make the following
payments.

     a.   TeleCorp will pay Dowski Seventeen Thousand Five Hundred Dollars
($17,500) a month for the twelve months following the Separation Date in
accordance with TeleCorp's normal payroll practices beginning on the next
regularly scheduled payday, but not before the expiration of the seven (7) day
waiting period as set forth in paragraph 10. All amounts set forth in this
Section 2 are subject to applicable (if any) federal, state and local
withholding, payroll and other taxes.

     b.   TeleCorp will pay Dowski a lump sum payment of One Hundred and Five
Thousand Dollars ($105,000) representing his 1998 bonus, such payment to be made
on the same date as TeleCorp pays its 1998 bonuses to its other employees, but
not before the expiration of the seven (7) day waiting period as set forth in
paragraph 10.

     c.   TeleCorp will pay Dowski together with his next regular paycheck a
lump sum equal to his earned but unpaid vacation, including any amounts carried
over from 1998, in accordance with TeleCorp's vacation payment policy.

     d.   TeleCorp will reimburse Dowski a total of $4,300 (after tax) in
accordance with TeleCorp's relocation policy in payment for his February and
March duplicate housing relocation benefit.

     e.   TeleCorp will pay Dowski, within a reasonable period of time after
Dowski's submission of documentation reasonably acceptable to TeleCorp, a lump
sum equal to the total outstanding amounts due to Dowski for travel and expense
reimbursement, net of any amounts due TeleCorp, in accordance with TeleCorp's
reimbursement policies; provided, however, that
<PAGE>

within a reasonable period of time after execution of this Agreement, TeleCorp's
Audit Committee will commission an audit of Dowski's expenses as charged by
Dowski to TeleCorp's company credit card(s). Any and all expenses that the Audit
Committee determines are personal in nature (collectively, "Dowski Personal
Expenses") will be offset against any reimbursable amounts due to Dowski
hereunder. In the event that the Dowski Personal Expenses exceed the total
reimbursable amounts due to Dowski under this Section 5(e), such excess amount
shall be offset against amounts due to Dowski elsewhere under this Agreement.

     f.   To the extent that Dowski is not eligible for coverage under benefit
plans of subsequent employers, Dowski will continue to be covered for a period
of twelve months after the Separation Date at the expense of TeleCorp by the
same or equivalent hospital, medical, and dental coverage as Dowski was covered
by immediately prior to the Separation Date.

     g.   Within seven (7) business days after TeleCorp receives this Agreement
executed by Dowski, TeleCorp will:

          (i)  Pay Dowski $18.93 in the aggregate for the repurchase of his
Extraordinary Event Shares, Supplemental Shares and nonvested Base Shares; and

          (ii) Pursuant to the Share Grant Agreement dated July 16, 1998,
TeleCorp will issue stock certificates to Dowski representing 139.448 shares of
Class A voting common stock and 136.948 shares of Series E Preferred Stock,
respectively.

The shares to be issued as set forth above will continue to be restricted in
accordance with the Stockholders' Agreement by and among Dowski, TeleCorp PCS,
Inc. and certain other stockholders dated July 17, 1998.

3.   Settlement of Amounts Due

     The amounts set forth in Section 2 shall be complete and unconditional
payment, settlement, satisfaction and accord with respect to all obligations and
liabilities of TeleCorp to Dowski, and with respect to all claims, causes of
action and damages that could be asserted by Dowski against TeleCorp arising out
of Dowski's employment with and separation of employment with TeleCorp,
including, without limitation, all claims for wages, back wages, salary,
vacation pay, draws, commissions, bonuses, compensation, professional expenses,
severance pay, attorney's fees, compensatory damages, special damages, reliance
damages, punitive damages, treble damages, consequential damages, exemplary
damages, emotional distress damages, or other costs or sums.


4.   Prior Agreements

     TeleCorp and Dowski hereby incorporate herein by reference sections 8, 9,
and 10 of the Employee Agreement by and between Dowski and TeleCorp PCS, Inc.,
dated July 17, 1998 as subsequently assigned to TeleCorp Communications, Inc.,
(the "Employee Agreement") in their entirety as if fully set forth herein. The
term "Company" as used in the Employee Agreement shall be herein interpreted
synonymously with the term "TeleCorp" as TeleCorp is defined in

                                      -2-
<PAGE>

section 5 below. Except as set forth above in this Section 4, this Agreement
shall supersede the Employee Agreement.

5.   Release

     a.   By Dowski

     In exchange for the amounts described in Section 2 and other good and
valuable consideration, receipt and sufficiency of which is hereby acknowledged,
Dowski and his representatives, agents, estate, successors and assigns,
absolutely and unconditionally hereby release and forever discharge TeleCorp
(which for purposes of this Section 5(a) shall hereinafter be defined to include
without limitation TeleCorp, its parents and/or any of its subsidiaries,
affiliates, their respective successors, assigns, shareholders/stockholders,
officers, directors, representatives, attorneys, employees and/or agents in both
their individual and official capacities) from any and all actions or causes of
action, suits, claims, complaints, obligations, contracts, liabilities,
agreements, promises, debts and damages, whether existing or contingent, known
or unknown, accrued or unaccrued, which arise out of Dowski's employment with
TeleCorp, the separation thereof or the aforementioned repurchase of the
Extraordinary Event, Supplemental and Base Shares pursuant to the Share Grant
Agreement between TeleCorp PCS, Inc and Dowski dated July 16, 1998. This release
is intended by Dowski to be all-encompassing and to act as a full and total
release of all claims known or unknown that Dowski may have or has had against
TeleCorp, including, but not limited to, (a) claims under any federal or state
law, statute or regulation dealing with either employment discrimination,
including both federal and state laws or regulations concerning discrimination
on the basis of age, race, color, religion, creed, sex, sexual preference,
national origin, handicap status or status as a disabled veteran; (b) any
contract whether oral or written, express or implied; and/or (c) at common law.

     b.   By TeleCorp

     For good and valuable consideration, receipt and sufficiency of which is
hereby acknowledged, TeleCorp [which for purposes of this Section 5(b) shall
hereinafter be defined to include without limitation, its parents and/or any of
its subsidiaries, affiliates, their respective successors, assigns,
shareholders/stockholders, officers, directors, representatives, attorneys,
employees and/or agents in both their individual and official capacities]
absolutely and unconditionally hereby releases and forever discharges Dowski and
his representatives, agents, estate, successors and assigns, from any and all
actions or causes of action, suits, claims, complaints, obligations, contracts,
liabilities, agreements, promises, debts and damages, whether existing or
contingent, known or unknown, which arise out of Dowski's employment by TeleCorp
or the separation thereof or the aforementioned repurchase of the Extraordinary
Event, Supplemental and Base Shares pursuant to the Share Grant Agreement
between TeleCorp PCS, Inc and Dowski dated July 16, 1998. This release is
intended by TeleCorp to be all-encompassing and to act as a full and total
release of any claims known or unknown that TeleCorp may have or has had against
Dowski, including, but not limited to, claims arising under

                                      -3-
<PAGE>

the parties Employee Agreement dated July 17, 1998, except those specifically
reserved herein, which TeleCorp does not waive and expressly reserves.

6.   Non-Disparagement and Confidentiality

     Dowski and TeleCorp agree not to make any negative or adverse remarks
whatsoever concerning each other, including, but not limited to, negative
remarks concerning TeleCorp's operations, marketing strategies, management,
affairs, or financial conditions or concerning Dowski's job competence,
performance or reasons for separation. Dowski and TeleCorp agree they shall not
divulge or publish any information whatsoever regarding the fact of, substance,
terms or existence of this Agreement and/or any discussions or negotiations
relating to this Agreement to any person or organization.

     Any disclosure of the terms, circumstances, negotiations, or fact of this
Agreement shall be deemed a violation of this Agreement and shall entitle the
party proving such a disclosure to all damages it proves as a result of such
breach and reasonable attorney's fees.  This provision is not intended to
interfere with nor to prevent Dowski's legal obligation to fully and completely
respond to a subpoena. Notwithstanding anything to the contrary in this Section
6, this Agreement shall not prohibit the disclosure of any amounts paid or to be
paid by any party as a result of this Agreement to its accountants, bookkeepers,
attorneys, or tax consultants nor shall it prohibit any party from taking any
legal action necessary to enforce this Agreement or exercise any rights
hereunder, provided such parties agree to maintain the non-disparagement and
confidentiality provisions of this Agreement.

7.   Non-solicitation

     Dowski agrees that for a period of one year from the effective date of this
Agreement, he will not (a) attempt to employ or employ; (b) attempt to assist in
employing or recommend the employment of; or (c) otherwise interfere with the
employment of any employee of TeleCorp while that employee is employed by
TeleCorp; provided that Dowski shall be free to provide, upon the request of a
TeleCorp employee who reported directly to, or was directly supervised by,
Dowski, a personal recommendation for future employment of such employee by a
company with which Dowski has no relation whether as a shareholder (other than
ownership of less than one percent of the common stock of a publicly-traded
company), director, employee, consultant or otherwise; provided further that
Dowski's recommendation is consistent with the spirit and terms of this Section
7.


8.   Transition Matters

     a.   TeleCorp and Dowski hereby agree that for a period of three months
after the Separation Date, TeleCorp will maintain Dowski's voice-mail box and e-
mail address, forwarding all e-mail messages electronically to his home no less
often than once every other day. TeleCorp and Dowski hereby further agree that
Dowski may retain use of his current lap top computer, printer and company-
provided fax machine for a period of up to three months to assist

                                      -4-
<PAGE>

in transition activities; provided that upon expiration of such three month
period Dowski shall promptly deliver such equipment to TeleCorp. TeleCorp and
Dowski hereby further agree that Dowski may retain possession permanently of the
mobile phone supplied to him by TeleCorp; provided that, the billing account for
such phone shall be transferred to Dowski and he shall assume personal liability
for the payment of such bill for all charges occurring after the Separation
Date.

     b.   TeleCorp will provide Dowski continuation of his duplicate housing
relocation benefit of $2,150 (after tax) per month, in accordance with
TeleCorp's relocation policy for the months of April through July, 1999, in
consideration of ongoing transition support.

     c.   Dowski hereby agrees that he shall use his best efforts to assist
TeleCorp in transitioning his position and current projects at TeleCorp to a
successor or other TeleCorp employees, including without limitation, Dowski
shall assist TeleCorp in completing TeleCorp's ten-year financial model as
outlined by TeleCorp's senior management.

9.   Representations and Governing Law

     a.   This Agreement represents the complete and sole understanding between
the parties, and supersedes any and all other agreements and understandings
regarding Dowski's employment and the separation thereof whether oral or
written.

     b.   This Agreement may not be modified, altered or rescinded except upon
written consent of TeleCorp and Dowski.  If any provision of this Agreement, or
part thereof, is held invalid, void or voidable as against the public policy or
otherwise, the invalidity shall not affect other provisions, and parts thereof,
of this Agreement as the same are declared to be severable.

     c.   The validity, interpretation and performance of this Agreement shall
be construed and interpreted according to the laws of the Commonwealth of
Virginia.

     d.   Dowski acknowledges that he has had twenty-one (21) days to review
this Agreement prior to execution of the same and he represents that he has
consulted with such attorneys, accountants, and other advisors as he has deemed
necessary and appropriate in connection with the negotiation and execution of
this Agreement, and is fully aware of the legal consequences of this Agreement.
Dowski does not rely on any representation, promise or inducement made by
TeleCorp with the exception of the consideration described in this Agreement.

10.  Effective Date

     Dowski may revoke this Agreement during the period of seven (7) days
following the execution by Dowski and this Agreement shall not become effective
or enforceable until this revocation period has expired.

                                      -5-
<PAGE>

               [Remainder of this Page Intentionally Left Blank]

                                      -6-
<PAGE>

     IN WITNESS WHEREOF, the undersigned has executed this Agreement on the
     dates shown below.

                                    /s/ Robert Dowski
Date: March 8, 1999                 -----------------------------
      -------------------           Robert Dowski


                                    TELECORP COMMUNICATIONS, INC.

Date: March 8, 1999                 BY: /s/ Thomas Sullivan
      -------------------               ----------------------------
                                    ITS: President
                                         ---------------------------


                                    TELECORP PCS, INC.

                                    BY: /s/ Thomas Sullivan
                                        ----------------------------
                                    ITS: Executive Vice President
                                         ---------------------------

                                      -7-

<PAGE>

                                                                    Exhibit 12.1

Computation of ratio of earnings to fixed charges:

<TABLE>
<CAPTION>
                                               For the period July 29,           For the                 For the
                                                 1996 (inception) to            year ended              year ended
                                                  December 31,1996           December 31,1997        December 31,1998
                                                  ----------------           ----------------        ----------------
<S>                                            <C>                           <C>                     <C>
Net loss                                               ($524,968)               ($3,335,170)         ($51,155,280)
                                               ==========================================================================
Fixed charges:
  Interest                                                     -                    527,759            13,989,306
  Interest factor of rent expense                            667                     52,333             1,064,333
                                               --------------------------------------------------------------------------

Total fixed charges                                          667                    580,092            15,053,639
                                               --------------------------------------------------------------------------

Earnings before fixed charges                          ($525,635)               ($3,915,262)         ($66,208,919)
                                               ==========================================================================

Ratio of earnings to fixed charges                     *                         *                       *
                                               ==========================================================================
<CAPTION>
                                                     For the                            For the
                                                  quarter ended                      quarter ended
                                                  March 31, 1998                     March 31, 1999
                                                  --------------                     --------------
<S>                                               <C>                                <C>
Net loss                                              ($2,745,121)                      ($30,333,627)
                                                 ====================================================

Fixed charges:
  Interest                                                330,409                          5,136,911
  Interest factor of rent expense                          61,047                          1,139,918
                                                 ----------------------------------------------------

Total fixed charges                                       391,456                          6,276,829
                                                 ----------------------------------------------------

Earnings before fixed charges                         ($3,136,577)                      ($36,610,456)
                                                 ====================================================

Ratio of earnings to fixed charges                   *                                  *
                                                 ====================================================
</TABLE>

     The ratio of earnings to fixed charges is computed by dividing fixed
     charges into income before taxes plus fixed charges. Fixed charges include
     interest expense and that portion of net rental expense (one-third)
     attributable to the interest factor. On this basis earnings before fixed
     charges for the period ended December 31, 1996, for the years ended
     December 31, 1997 and 1998, and for the three months ended March 31, 1998
     and 1999 were not adequate to cover fixed charges by $525,635, $3,915,262,
     $66,208,919, $3,136,577, and $36,610,456, respectively.



<PAGE>

                                                                    EXHIBIT 21.1

                              TELECORP SUBSIDIARIES
                              ---------------------

        Address for all entities: 1010 N. Glebe Road, Arlington, VA 22201


                     TeleCorp Entity                             State of
                                                              Incorporation

1. TeleCorp Holding Corp., Inc.                                    DE

2. TeleCorp PCS, L.L.C. (Sole Member is: TeleCorp PCS, Inc.)       DE

3. TeleCorp Communications, Inc. (f/k/a TeleCorp Operating
   Company, Inc.)                                                  DE

4. Affiliate License Co., L.L.C. (TeleCorp Communications, Inc.
   has one-third voting rights in this entity)                     DE

5. TeleCorp Realty, L.L.C. (Managing Member is: TeleCorp
   Communications, Inc.)                                           DE

6. TeleCorp Equipment Leasing, L.P. (General Partner is:
   TeleCorp Limited Holdings, Inc.)                                DE

7. TeleCorp Limited Holdings, Inc.                                 DE

8. TeleCorp Realty Holdings, Inc.                                  DE

9. TeleCorp of Puerto Rico, Inc.                              Puerto Rico

10. TeleCorp Puerto Rico Realty, Inc.                         Puerto Rico

11. Viper Wireless, Inc.                                           DE

<PAGE>

                                                                    Exhibit 23.2

                      Consent of Independent Accountants

We hereby consent to the use in this Registration Statement on Form S-4 of
TeleCorp PCS, Inc. and Subsidiaries and Predecessor Company of our report dated
March 8, 1999, except for the information in Note 15, for which the date is
June 15, 1999, relating to the financial statements, which appear in such
Registration Statement. We also consent to the references to us under the
headings "Experts" and "Selected Historical and Pro Forma Consolidated Financial
Information" in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

McLean, Virginia
June 22, 1999

<PAGE>

                                                                      EXHIBIT 25

     _____________________________________________________________________
                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON, D.C. 20549
                               _________________
                                   FORM T-1

STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION
DESIGNATED TO ACT AS TRUSTEE

CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO
SECTION 305(b)(2)

                             BANKERS TRUST COMPANY
              (Exact name of trustee as specified in its charter)

NEW YORK                                               54-1872248
(Jurisdiction of Incorporation or                     (I.R.S. Employer
organization if not a                                 Identification no.)
U.S. national bank)

FOUR ALBANY STREET
NEW YORK, NEW YORK                                    10006
(Address of principal                                 (Zip Code)
executive offices)

                      Bankers Trust Company
                      Legal Department
                      130 Liberty Street, 31st Floor
                      New York, New York  10006
                      (212) 250-2201
                      (Name, address and telephone number of agent for service)



                              TELECORP PCS, INC.
            (Exact name of Registrant as specified in its charter)

           Delaware                                         54-1872248
(State or other jurisdiction of                           (IRS employer
 Incorporation or organization)                          Identification no.)

                              1010 N. Glebe Road
                                   Suite 800
                              Arlington, VA 22201
                         (Address, including zip code
                        of principal executive offices)


       $575,000,000 11 5/8% Senior Subordinated Discount Notes due 2009
                           (Title of the securities)

<PAGE>

Item 1. General Information.
            Furnish the following information as to the trustee.

        (a) Name and address of each examining or supervising authority to
     which it is subject.

          Name                                      Address
          ----                                      -------

          Federal Reserve Bank (2nd District)       New York, NY
          Federal Deposit Insurance Corporation     Washington, D.C.
          New York State Banking Department         Albany, NY

        (b) Whether it is authorized to exercise corporate trust powers.
            Yes.

Item 2. Affiliations with Obligor.

            If the obligor is an affiliate of the Trustee, describe each such
            affiliation.

            None.

Item 3.-15. Not Applicable

Item 16.    List of Exhibits.

          Exhibit 1 - Restated Organization Certificate of Bankers Trust Company
                      dated August 7, 1990, Certificate of Amendment of the
                      Organization Certificate of Bankers Trust Company dated
                      June 21, 1995- Incorporated herein by reference to Exhibit
                      1 filed with Form T-1 Statement, Registration No. 33-
                      65171, Certificate of Amendment of the Organization
                      Certificate of Bankers Trust Company dated March 20, 1996,
                      incorporate by referenced to Exhibit 1 filed with Form T-1
                      Statement, Registration No. 333-25843 and Certificate of
                      Amendment of the Organization Certificate of Bankers Trust
                      Company dated June 19, 1997, copy attached.

          Exhibit 2 - Certificate of Authority to commence business -
                      Incorporated herein by reference to Exhibit 2 filed with
                      Form T-1 Statement, Registration No. 33-21047.


          Exhibit 3 - Authorization of the Trustee to exercise corporate trust
                      powers - Incorporated herein by reference to Exhibit 2
                      filed with Form T-1 Statement, Registration No. 33-21047.

          Exhibit 4 - Existing By-Laws of Bankers Trust Company, as amended on
                      November 18, 1997. Copy attached.

                                      -2-
<PAGE>

          Exhibit 5 - Not applicable.

          Exhibit 6 - Consent of Bankers Trust Company required by Section
                      321(b) of the Act. - Incorporated herein by reference to
                      Exhibit 4 filed with Form T-1 Statement, Registration No.
                      22-18864.

          Exhibit 7 - The latest report of condition of Bankers Trust Company
                      dated as of December 31, 1998.  Copy attached.

          Exhibit 8 - Not Applicable.

          Exhibit 9 - Not Applicable.

                                      -3-
<PAGE>

                                   SIGNATURE

     Pursuant to the requirements of the Trust Indenture Act of 1939, as
amended, the trustee, Bankers Trust Company, a corporation organized and
existing under the laws of the State of New York, has duly caused this statement
of eligibility to be signed on its behalf by the undersigned, thereunto duly
authorized, all in The City of New York, and State of New York, on the 17/th/ of
                                                                       ---------
June, 1999.
- ----


                                       BANKERS TRUST COMPANY



                                       By: /s/ Marc J. Parilla
                                          ------------------------
                                             Marc J. Parilla
                                          Assistant Vice President

                                      -4-
<PAGE>

                                   SIGNATURE


     Pursuant to the requirements of the Trust Indenture Act of 1939, as
amended, the trustee, Bankers Trust Company, a corporation organized and
existing under the laws of the State of New York, has duly caused this statement
of eligibility to be signed on its behalf by the undersigned, thereunto duly
authorized, all in The City of New York, and State of New York, on the 17/th/ of
                                                                       ---------
June, 1999.
- ----


                              BANKERS TRUST COMPANY



                              By:/s/ Marc J. Parilla
                                 -----------------------
                                     Marc J. Parilla
                                Assistant Vice President


                                      -5-
<PAGE>

                              State of New York,

                              Banking Department


     I, MANUEL KURSKY, Deputy Superintendent of Banks of the State of New York,
DO HEREBY APPROVE the annexed Certificate entitled "CERTIFICATE OF AMENDMENT OF
THE ORGANIZATION CERTIFICATE OF BANKERS TRUST COMPANY Under Section 8005 of the
Banking Law," dated June 19, 1997, providing for an increase in authorized
capital stock from $1,601,666,670 consisting of 100,166,667 shares with a par
value of $10 each designated as Common Stock and 600 shares with a par value of
$1,000,000 each designated as Series Preferred Stock to $2,001,666,670
consisting of 100,166,667 shares with a par value of $10 each designated as
Common Stock and 1,000 shares with a par value of $1,000,000 each designated as
Series Preferred Stock.

Witness, my hand and official seal of the Banking Department at the City of New
York,
                    this 27th     day of      June     in the Year of our Lord
                         ------           -----------
                    one thousand nine hundred and ninety-seven.



                                         /s/ Manuel Kursky
                                         ------------------------------
                                         Deputy Superintendent of Banks
<PAGE>

                           CERTIFICATE OF AMENDMENT

                                    OF THE

                           ORGANIZATION CERTIFICATE

                               OF BANKERS TRUST

                     Under Section 8005 of the Banking Law

                         _____________________________

     We, James T. Byrne, Jr. and Lea Lahtinen, being respectively a Managing
Director and an Assistant Secretary of Bankers Trust Company, do hereby certify:

     1.   The name of the corporation is Bankers Trust Company.

     2.   The organization certificate of said corporation was filed by the
Superintendent of Banks on the 5th of march, 1903.

     3.   The organization certificate as heretofore amended is hereby amended
to increase the aggregate number of shares which the corporation shall have
authority to issue and to increase the amount of its authorized capital stock in
conformity therewith.

     4.   Article III of the organization certificate with reference to the
authorized capital stock, the number of shares into which the capital stock
shall be divided, the par value of the shares and the capital stock outstanding,
which reads as follows:

     "III. The amount of capital stock which the corporation is hereafter to
     have is One Billion, Six Hundred and One Million, Six Hundred Sixty-Six
     Thousand, Six Hundred Seventy Dollars ($1,601,666,670), divided into One
     Hundred Million, One Hundred Sixty-Six Thousand, Six Hundred Sixty-Seven
     (100,166,667) shares with a par value of $10 each designated as Common
     Stock and 600 shares with a par value of One Million Dollars ($1,000,000)
     each designated as Series Preferred Stock."

is hereby amended to read as follows:

     "III. The amount of capital stock which the corporation is hereafter to
     have is Two Billion One Million, Six Hundred Sixty-Six Thousand, Six
     Hundred Seventy Dollars ($2,001,666,670), divided into One Hundred Million,
     One Hundred Sixty-Six Thousand, Six Hundred Sixty-Seven (100,166,667)
     shares with a par value of $10 each designated as Common Stock and 1000
     shares with a par value of One Million Dollars ($1,000,000) each designated
     as Series Preferred Stock."
<PAGE>

     5.   The foregoing amendment of the organization certificate was authorized
by unanimous written consent signed by the holder of all outstanding shares
entitled to vote thereon.

     IN WITNESS WHEREOF, we have made and subscribed this certificate this 19th
day of June, 1997.


                                        /s/ James T. Byrne, Jr.
                                        ------------------------
                                            James T. Byrne, Jr.
                                            Managing Director


                                        /s/ Lea Lahtinen
                                        -----------------------
                                            Lea Lahtinen
                                            Assistant Secretary

State of New York   )
                    )  ss:
County of New York  )

     Lea Lahtinen, being fully sworn, deposes and says that she is an Assistant
Secretary of Bankers Trust Company, the corporation described in the foregoing
certificate; that she has read the foregoing certificate and knows the contents
thereof, and that the statements herein contained are true.

                                                 /s/ Lea Lahtinen
                                                 -------------------
                                                     Lea Lahtinen

Sworn to before me this 19th day
of June, 1997.


     /s/ Sandra L. West
     -------------------
         Notary Public


         SANDRA L. WEST
Notary Public State of New York
         No. 31-4942101
   Qualified in New York County
Commission Expires September 19, 1998
<PAGE>

                                    BY-LAWS



                               NOVEMBER 18, 1997



                             Bankers Trust Company
                                   New York
<PAGE>

                                    BY-LAWS
                                      of
                             Bankers Trust Company

                                   ARTICLE I

                           MEETINGS OF STOCKHOLDERS


SECTION 1.  The annual meeting of the stockholders of this Company shall be held
at the office of the Company in the Borough of Manhattan, City of New York, on
the third Tuesday in January of each year, for the election of directors and
such other business as may properly come before said meeting.

SECTION 2.  Special meetings of stockholders other than those regulated by
statute may be called at any time by a majority of the directors.  It shall be
the duty of the Chairman of the Board, the Chief Executive Officer or the
President to call such meetings whenever requested in writing to do so by
stockholders owning a majority of the capital stock.

SECTION 3.  At all meetings of stockholders, there shall be present, either in
person or by proxy, stockholders owning a majority of the capital stock of the
Company, in order to constitute a quorum, except at special elections of
directors, as provided by law, but less than a quorum shall have power to
adjourn any meeting.

SECTION 4.  The Chairman of the Board or, in his absence, the Chief Executive
Officer or, in his absence, the President or, in their absence, the senior
officer present, shall preside at meetings of the stockholders and shall direct
the proceedings and the order of business.  The Secretary shall act as secretary
of such meetings and record the proceedings.


                                  ARTICLE II

                                   DIRECTORS


SECTION 1.  The affairs of the Company shall be managed and its corporate powers
exercised by a Board of Directors consisting of such number of directors, but
not less than ten nor more than twenty-five, as may from time to time be fixed
by resolution adopted by a majority of the directors then in office, or by the
stockholders.  In the event of any increase in the number of directors,
additional directors may be elected within the limitations so fixed, either by
the stockholders or within the limitations imposed by law, by a majority of
directors then in office.  One-third of the number of directors, as fixed from
time to time, shall constitute a quorum.  Any one or more members of the Board
of Directors or any Committee thereof may participate in a meeting of the Board
of Directors or Committee thereof by means of a conference telephone or similar
communications equipment which allows all persons participating in the meeting
to hear each other at the same time.  Participation by such means shall
constitute presence in person at such a meeting.
<PAGE>

All directors hereafter elected shall hold office until the next annual meeting
of the stockholders and until their successors are elected and have qualified.
No person who shall have attained age 72 shall be eligible to be elected or re-
elected a director. Such director may, however, remain a director of the Company
until the next annual meeting of the stockholders of Bankers Trust New York
Corporation (the Company's parent) so that such director's retirement will
coincide with the retirement date from Bankers Trust New York Corporation.

No Officer-Director who shall have attained age 65, or earlier relinquishes his
responsibilities and title, shall be eligible to serve as a director.

SECTION 2. Vacancies not exceeding one-third of the whole number of the Board
of Directors may be filled by the affirmative vote of a majority of the
directors then in office, and the directors so elected shall hold office for the
balance of the unexpired term.

SECTION 3. The Chairman of the Board shall preside at meetings of the Board of
Directors. In his absence, the Chief Executive Officer or, in his absence, such
other director as the Board of Directors from time to time may designate shall
preside at such meetings.

SECTION 4. The Board of Directors may adopt such Rules and Regulations for the
conduct of its meetings and the management of the affairs of the Company as it
may deem proper, not inconsistent with the laws of the State of New York, or
these By-Laws, and all officers and employees shall strictly adhere to, and be
bound by, such Rules and Regulations.

SECTION 5. Regular meetings of the Board of Directors shall be held from time to
time on the third Tuesday of the month. If the day appointed for holding such
regular meetings shall be a legal holiday, the regular meeting to be held on
such day shall be held on the next business day thereafter. Special meetings of
the Board of Directors may be called upon at least two day's notice whenever it
may be deemed proper by the Chairman of the Board or, the Chief Executive
Officer or, in their absence, by such other director as the Board of Directors
may have designated pursuant to Section 3 of this Article, and shall be called
upon like notice whenever any three of the directors so request in writing.

SECTION 6. The compensation of directors as such or as members of committees
shall be fixed from time to time by resolution of the Board of Directors.
<PAGE>

                                  ARTICLE III

                                  COMMITTEES


SECTION 1. There shall be an Executive Committee of the Board consisting of not
less than five directors who shall be appointed annually by the Board of
Directors. The Chairman of the Board shall preside at meetings of the Executive
Committee. In his absence, the Chief Executive Officer or, in his absence, such
other member of the Committee as the Committee from time to time may designate
shall preside at such meetings.

The Executive Committee shall possess and exercise to the extent permitted by
law all of the powers of the Board of Directors, except when the latter is in
session, and shall keep minutes of its proceedings, which shall be presented to
the Board of Directors at its next subsequent meeting. All acts done and powers
and authority conferred by the Executive Committee from time to time shall be
and be deemed to be, and may be certified as being, the act and under the
authority of the Board of Directors.

A majority of the Committee shall constitute a quorum, but the Committee may act
only by the concurrent vote of not less than one-third of its members, at least
one of whom must be a director other than an officer. Any one or more directors,
even though not members of the Executive Committee, may attend any meeting of
the Committee, and the member or members of the Committee present, even though
less than a quorum, may designate any one or more of such directors as a
substitute or substitutes for any absent member or members of the Committee, and
each such substitute or substitutes shall be counted for quorum, voting, and all
other purposes as a member or members of the Committee.

SECTION 2. There shall be an Audit Committee appointed annually by resolution
adopted by a majority of the entire Board of Directors which shall consist of
such number of directors, who are not also officers of the Company, as may from
time to time be fixed by resolution adopted by the Board of Directors. The
Chairman shall be designated by the Board of Directors, who shall also from time
to time fix a quorum for meetings of the Committee. Such Committee shall conduct
the annual directors' examinations of the Company as required by the New York
State Banking Law; shall review the reports of all examinations made of the
Company by public authorities and report thereon to the Board of Directors; and
shall report to the Board of Directors such other matters as it deems advisable
with respect to the Company, its various departments and the conduct of its
operations.

In the performance of its duties, the Audit Committee may employ or retain, from
time to time, expert assistants, independent of the officers or personnel of the
Company, to make studies of the Company's assets and liabilities as the
Committee may request and to make an examination of the accounting and auditing
methods of the Company and its system of internal protective controls to the
extent considered necessary or advisable in order to determine that the
operations of the Company, including its fiduciary departments, are being
audited by the General Auditor in such a manner as to provide prudent and
adequate protection. The Committee also may direct the General Auditor to make
such investigation as it deems necessary or advisable with respect to the
Company, its various departments and the conduct of its operations. The
Committee shall hold regular quarterly
<PAGE>

meetings and during the intervals thereof shall meet at other times on call of
the Chairman.

SECTION 3. The Board of Directors shall have the power to appoint any other
Committees as may seem necessary, and from time to time to suspend or continue
the powers and duties of such Committees. Each Committee appointed pursuant to
this Article shall serve at the pleasure of the Board of Directors.

                                  ARTICLE IV

                                   OFFICERS

SECTION 1. The Board of Directors shall elect from among their number a Chairman
of the Board and a Chief Executive Officer; and shall also elect a President,
and may also elect a Senior Vice Chairman, one or more Vice Chairmen, one or
more Executive Vice Presidents, one or more Senior Managing Directors, one or
more Managing Directors, one or more Senior Vice Presidents, one or more
Principals, one or more Vice Presidents, one or more General Managers, a
Secretary, a Controller, a Treasurer, a General Counsel, one or more Associate
General Counsels, a General Auditor, a General Credit Auditor, and one or more
Deputy Auditors, who need not be directors. The officers of the corporation may
also include such other officers or assistant officers as shall from time to
time be elected or appointed by the Board. The Chairman of the Board or the
Chief Executive Officer or, in their absence, the President, the Senior Vice
Chairman or any Vice Chairman, may from time to time appoint assistant officers.
All officers elected or appointed by the Board of Directors shall hold their
respective offices during the pleasure of the Board of Directors, and all
assistant officers shall hold office at the pleasure of the Board or the
Chairman of the Board or the Chief Executive Officer or, in their absence, the
President, the Senior Vice Chairman or any Vice Chairman. The Board of Directors
may require any and all officers and employees to give security for the faithful
performance of their duties.

SECTION 2. The Board of Directors shall designate the Chief Executive Officer
of the Company who may also hold the additional title of Chairman of the Board,
President,  Senior Vice Chairman or Vice Chairman and such person shall have,
subject to the supervision and direction of the Board of Directors or the
Executive Committee, all of the powers vested in such Chief Executive Officer by
law or by these By-Laws, or which usually attach or pertain to such office.  The
other officers shall have, subject to the supervision and direction of the Board
of Directors or the Executive Committee or the Chairman of the Board or, the
Chief Executive Officer, the powers vested by law or by these By-Laws in them as
holders of their respective offices and, in addition, shall perform such other
duties as shall be assigned to them by the Board of Directors or the Executive
Committee or the Chairman of the Board or the Chief Executive Officer.

The General Auditor shall be responsible, through the Audit Committee, to the
Board of Directors for the determination of the program of the internal audit
function and the evaluation of the adequacy of the system of internal controls.
Subject to the Board of Directors, the General Auditor shall have and may
exercise all the powers and shall perform all the duties usual to such office
and shall have such other powers as may be prescribed or assigned to him from
time to time by the Board of Directors or vested in him by law or by these By-
Laws. He shall perform such other duties and shall make such investigations,
examinations and reports as may be prescribed or required by the Audit
<PAGE>

Committee. The General Auditor shall have unrestricted access to all records and
premises of the Company and shall delegate such authority to his subordinates.
He shall have the duty to report to the Audit Committee on all matters
concerning the internal audit program and the adequacy of the system of internal
controls of the Company which he deems advisable or which the Audit Committee
may request. Additionally, the General Auditor shall have the duty of reporting
independently of all officers of the Company to the Audit Committee at least
quarterly on any matters concerning the internal audit program and the adequacy
of the system of internal controls of the Company that should be brought to the
attention of the directors except those matters responsibility for which has
been vested in the General Credit Auditor. Should the General Auditor deem any
matter to be of special immediate importance, he shall report thereon forthwith
to the Audit Committee. The General Auditor shall report to the Chief Financial
Officer only for administrative purposes.

The General Credit Auditor shall be responsible to the Chief Executive Officer
and, through the Audit Committee, to the Board of Directors for the systems of
internal credit audit, shall perform such other duties as the Chief Executive
Officer may prescribe, and shall make such examinations and reports as may be
required by the Audit Committee. The General Credit Auditor shall have
unrestricted access to all records and may delegate such authority to
subordinates.

SECTION 3. The compensation of all officers shall be fixed under such plan or
plans of position evaluation and salary administration as shall be approved from
time to time by resolution of the Board of Directors.

SECTION 4. The Board of Directors, the Executive Committee, the Chairman of the
Board, the Chief Executive Officer or any person authorized for this purpose by
the Chief Executive Officer, shall appoint or engage all other employees and
agents and fix their compensation. The employment of all such employees and
agents shall continue during the pleasure of the Board of Directors or the
Executive Committee or the Chairman of the Board or the Chief Executive Officer
or any such authorized person; and the Board of Directors, the Executive
Committee, the Chairman of the Board, the Chief Executive Officer or any such
authorized person may discharge any such employees and agents at will.
<PAGE>

                                   ARTICLE V

               INDEMNIFICATION OF DIRECTORS, OFFICERS AND OTHERS

SECTION 1.  The Company shall, to the fullest extent permitted by Section 7018
of the New York Banking Law, indemnify any person who is or was made, or
threatened to be made, a party to an action or proceeding, whether civil or
criminal, whether involving any actual or alleged breach of duty, neglect or
error, any accountability, or any actual or alleged misstatement, misleading
statement or other act or omission and whether brought or threatened in any
court or administrative or legislative body or agency, including an action by or
in the right of the Company to procure a judgment in its favor and an action by
or in the right of any other corporation of any type or kind, domestic or
foreign, or any partnership, joint venture, trust, employee benefit plan or
other enterprise, which any director or officer of the Company is servicing or
served in any capacity at the request of the Company by reason of the fact that
he, his testator or intestate, is or was a director or officer of the Company,
or is serving or served such other corporation, partnership, joint venture,
trust, employee benefit plan or other enterprise in any capacity, against
judgments, fines, amounts paid in settlement, and costs, charges and expenses,
including attorneys' fees, or any appeal therein; provided, however, that no
indemnification shall be provided to any such person if a judgment or other
final adjudication adverse to the director or officer establishes that (i) his
acts were committed in bad faith or were the result of active and deliberate
dishonesty and, in either case, were material to the cause of action so
adjudicated, or (ii) he personally gained in fact a financial profit or other
advantage to which he was not legally entitled.

SECTION 2.  The Company may indemnify any other person to whom the Company is
permitted to provide indemnification or the advancement of expenses by
applicable law, whether pursuant to rights granted pursuant to, or provided by,
the New York Banking Law or other rights created by (i) a resolution of
stockholders, (ii) a resolution of directors, or (iii) an agreement providing
for such indemnification, it being expressly intended that these By-Laws
authorize the creation of other rights in any such manner.

SECTION 3.  The Company shall, from time to time, reimburse or advance to any
person referred to in Section 1 the funds necessary for payment of expenses,
including attorneys' fees, incurred in connection with any action or proceeding
referred to in Section 1, upon receipt of a written undertaking by or on behalf
of such person to repay such amount(s) if a judgment or other final adjudication
adverse to the director or officer establishes that (i) his acts were committed
in bad faith or were the result of active and deliberate dishonesty and, in
either case, were material to the cause of action so adjudicated, or (ii) he
personally gained in fact a financial profit or other advantage to which he was
not legally entitled.

SECTION 4.  Any director or officer of the Company serving (i) another
corporation, of which a majority of the shares entitled to vote in the election
of its directors is held by the Company, or (ii) any employee benefit plan of
the Company or any corporation referred to in clause (i) in any capacity shall
be deemed to be doing so at the request of the Company. In all other cases, the
provisions of this Article V will apply (i) only if the person serving another
corporation or any partnership, joint venture, trust, employee benefit plan or
other enterprise so served at the specific request of the Company, evidenced by
a written communication signed by the Chairman of the Board, the Chief Executive
Officer
<PAGE>

or the President, and (ii) only if and to the extent that, after making such
efforts as the Chairman of the Board, the Chief Executive Officer or the
President shall deem adequate in the circumstances, such person shall be unable
to obtain indemnification from such other enterprise or its insurer.

SECTION 5.  Any person entitled to be indemnified or to the reimbursement or
advancement of expenses as a matter of right pursuant to this Article V may
elect to have the right to indemnification (or advancement of expenses)
interpreted on the basis of the applicable law in effect at the time of
occurrence of the event or events giving rise to the action or proceeding, to
the extent permitted by law, or on the basis of the applicable law in effect at
the time indemnification is sought.

SECTION 6.  The right to be indemnified or to the reimbursement or advancement
of expense pursuant to this Article V (i) is a contract right pursuant to which
the person entitled thereto may bring suit as if the provisions hereof were set
forth in a separate written contract between the Company and the director or
officer, (ii) is intended to be retroactive and shall be available with respect
to events occurring prior to the adoption hereof, and (iii) shall continue to
exist after the rescission or restrictive modification hereof with respect to
events occurring prior thereto.

SECTION 7.  If a request to be indemnified or for the reimbursement or
advancement of expenses pursuant hereto is not paid in full by the Company
within thirty days after a written claim has been received by the Company, the
claimant may at any time thereafter bring suit against the Company to recover
the unpaid amount of the claim and, if successful in whole or in part, the
claimant shall be entitled also to be paid the expenses of prosecuting such
claim.  Neither the failure of the Company (including its Board of Directors,
independent legal counsel, or its stockholders) to have made a determination
prior to the commencement of such action that indemnification of or
reimbursement or advancement of expenses to the claimant is proper in the
circumstance, nor an actual determination by the Company (including its Board of
Directors, independent legal counsel, or its stockholders) that the claimant is
not entitled to indemnification or to the reimbursement or advancement of
expenses, shall be a defense to the action or create a presumption that the
claimant is not so entitled.

SECTION 8.  A person who has been successful, on the merits or otherwise, in the
defense of a civil or criminal action or proceeding of the character described
in Section 1 shall be entitled to indemnification only as provided in Sections 1
and 3, notwithstanding any provision of the New York Banking Law to the
contrary.
<PAGE>

                                  ARTICLE VI

                                     SEAL


SECTION 1.  The Board of Directors shall provide a seal for the Company, the
counterpart dies of which shall be in the charge of the Secretary of the Company
and such officers as the Chairman of the Board, the Chief Executive Officer or
the Secretary may from time to time direct in writing, to be affixed to
certificates of stock and other documents in accordance with the directions of
the Board of Directors or the Executive Committee.

SECTION 2.  The Board of Directors may provide, in proper cases on a specified
occasion and for a specified transaction or transactions, for the use of a
printed or engraved facsimile seal of the Company.


                                  ARTICLE VII

                                 CAPITAL STOCK


SECTION 1.  Registration of transfer of shares shall only be made upon the books
of the Company by the registered holder in person, or by power of attorney, duly
executed, witnessed and filed with the Secretary or other proper officer of the
Company, on the surrender of the certificate or certificates of such shares
properly assigned for transfer.


                                 ARTICLE VIII

                                 CONSTRUCTION


SECTION 1.  The masculine gender, when appearing in these By-Laws, shall be
deemed to include the feminine gender.


                                  ARTICLE IX

                                  AMENDMENTS


SECTION 1.  These By-Laws may be altered, amended or added to by the Board of
Directors at any meeting, or by the stockholders at any annual or special
meeting, provided notice thereof has been given.
<PAGE>

I,  Marc J. Parilla, an Assistant Vice President of Bankers Trust Company, New
York, New York, hereby certify that the foregoing is a complete, true and
correct copy of the By-Laws of Bankers Trust Company, and that the same are in
full force and effect at this date.


                                         /s/ Marc J. Parilla
                                         _____________________________________
                                         ASSISTANT VICE PRESIDENT



DATED:   June 16, 1999
<PAGE>

<TABLE>
<S>                                                <C>                                  <C>               <C>
Legal Title of Bank:  Bankers Trust Company        Call Date: 12/31/98  ST-BK:          36-4840            FFIEC 031
Address:              130 Liberty Street           Vendor ID: D                         CERT:  00623                 Page RC-1
City, State ZIP:      New York, NY 10006                                                                             11
FDIC Certificate No.:   0  0 6 2 3
</TABLE>

Consolidated Report of Condition for Insured Commercial and State-Chartered
Savings Banks for December 31, 1998

All schedules are to be reported in thousands of dollars. Unless otherwise
indicated, reported the amount outstanding as of the last business day of the
quarter.

<TABLE>
<CAPTION>
Schedule RC--Balance Sheet
                                                                                                              -------------
                                                                                                                  C400
                                                                                          ---------------------------------
                                                               Dollar Amounts in Thousands     RCFD          Bil Mil Thou
- ---------------------------------------------------------------------------------------------------------------------------
<S>                                                                                       <C>                <C>
ASSETS
 1. Cash and balances due from depository institutions (from Schedule RC-A):
    a.  Noninterest-bearing balances and currency and coin (1)..............                   0081                2,772,000   1.a.
    b.  Interest-bearing balances (2).......................................                   0071                2,497,000   1.b.
 2. Securities:
    a.  Held-to-maturity securities (from Schedule RC-B, column A)..........                   1754                        0   2.a.
    b.  Available-for-sale securities (from Schedule RC-B, column D)........                   1773                8,907,000   2.b.
 3. Federal funds sold and securities purchased under agreements to resell                     1350               22,851,000   3.
 4. Loans and lease financing receivables:
    a. Loans and leases, net of unearned income (from Schedule RC-C)  RCFD  2122  21,882,000                                   4.a.
    b. LESS:  Allowance for loan and lease losses.....................RCFD  3123     620,000                                   4.b.
    c. LESS:  Allocated transfer risk reserve.........................RCFD  3128           0                                   4.c.
    d. Loans and leases, net of unearned income,............................
       allowance, and reserve (item 4.a minus 4.b and 4.c)..................                   2125               21,262,000   4.d.
 5. Trading Assets (from schedule RC-D).....................................                   3545               39,983,000   5.
 6. Premises and fixed assets (including capitalized leases)................                   2145                  974,000   6.
 7. Other real estate owned (from Schedule RC-M)............................                   2150                   80,000   7.
 8. Investments in unconsolidated subsidiaries and associated companies (from Schedule RC-M)   2130                   97,000   8.
 9. Customers' liability to this bank on acceptances outstanding............                   2155                  232,000   9.
10. Intangible assets (from Schedule RC-M)..................................                   2143                  278,000   10.
11. Other assets (from Schedule RC-F).......................................                   2160                4,625,000   11.
12. Total assets (sum of items 1 through 11)................................                   2170              104,558,000   12.
                                                                                              -------------------------------------
</TABLE>


__________________________
(1)  Includes cash items in process of collection and unposted debits.
(2)  Includes time certificates of deposit not held for trading.
<PAGE>

<TABLE>
<S>                                               <C>                        <C>                    <C>
Legal Title of Bank:  Bankers Trust Company       Call Date: 12/31/98        ST-BK: 36-4840         FFIEC  031
Address:              130 Liberty Street          Vendor ID: D               CERT:  00623           Page  RC-2
City, State Zip:      New York, NY  10006                                                           12
FDIC Certificate No.:   0 0 6 2 3
</TABLE>

<TABLE>
<CAPTION>
Schedule RC--Continued                                                                            -------------------------------
                                                                       Dollar Amounts in Thousands                Bil Mil Thou
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                               <C>           <C>
LIABILITIES

13.  Deposits:
     a.  In domestic offices (sum of totals of columns A and C from Schedule RC-E, part I)        RCON 2200     20,409,000  13.a
           (1)  Noninterest-bearing(1)...............RCON 6631                   3,124,000                                  13.a.(1)
           (2)  Interest-bearing.....................RCON 6636                  17,285,000                                  13.a.(2)
     b.  In foreign offices, Edge and Agreement subsidiaries, and IBFs (from
          Schedule RC-E part II)                                                                  RCFN 2200     20,167,000  13.b.
           (1)  Noninterest-bearing..................RCFN 6631                   1,781,000                                  13.b.(1)
           (2)  Interest-bearing ....................RCFN 6636                  18,386,000
14.  Federal funds purchased and securities sold under agreements to repurchase                   RCFD 2800     13,919,000  14.
15.  a.  Demand notes issued to the U.S. Treasury...........................                      RCON 2840              0  15.a.
     b.  Trading liabilities (from Schedule RC-D)...........................                      RCFD 3548     26,175,000  15.b.
16.  Other borrowed money (includes mortgage indebtedness and obligations under capitalized
     leases):
     a.  With a remaining maturity of one year or less......................                      RCFD 2332      5,422,000  16.a.
     b.  With a remaining maturity of more than one year through three years                      A547           1,766,000  16.b.
     c.  With a remaining maturity of more than three years.................                      A548           2,884,000  16.c
17.  Not Applicable.                                                                                                        17.
18.  Bank's liability on acceptances executed and outstanding...............                      RCFD 2920        232,000  18.
19.  Subordinated notes and debentures (2)..................................                      RCFD 3200        984,000  19.
20.  Other liabilities (from Schedule RC-G).................................                      RCFD 2930      5,657,000  20.
21.  Total liabilities (sum of items 13 through 20).........................                      RCFD 2948     97,615,000  21.
22.  Not Applicable

EQUITY CAPITAL
23.  Perpetual preferred stock and related surplus..........................                      RCFD 3838      1,500,000  23.
24.  Common stock...........................................................                      RCFD 3230      2,127,000  24.
25.  Surplus (exclude all surplus related to preferred stock)...............                      RCFD 3839        541,000  25.
26.  a.  Undivided profits and capital reserves.............................                      RCFD 3632      3,200,000  26.a.
     b.  Net unrealized holding gains (losses) on available-for-sale securities                   RCFD 8434        (36,000) 26.b.
27.  Cumulative foreign currency translation adjustments....................                      RCFD 3284       (389,000) 27.
28.  Total equity capital (sum of items 23 through 27)......................                      RCFD 3210      6,943,000  28.
     (sum of items 21 and 28)...............................................                      RCFD 3300    104,558,000  29
</TABLE>

<TABLE>
Memorandum
To be  reported only with the March Report of Condition.
<S>  <C>
1.   Indicate in the box at the right the number of the statement below that                                          Number
     best describes the most comprehensive level of auditing work performed                   -------------------------------------
     for the bank by independent external auditors as of any date during 1998...............  RCFD      6724       N/A          M.1
</TABLE>

1 =  Independent audit conducted in accordance with generally accepted auditing
     standards by a certified external auditors (may be required by state
     chartering public accounting firm which submits a report on the bank
2 =  Independent audit of the bank's parent holding company conducted in
     accordance with generally accepted auditing auditors standards by a
     certified public accounting firm which submits a report on the
     consolidated holding company (but not on the bank separately)
3 =  Directors' examination of the bank conducted in accordance with generally
     accepted auditing standards by a certified public accounting firm (may be
     required by state chartering authority)
4 =  Directors' examination of the bank performed by other external auditors
     (may be required by state chartering authority)
5 =  Review of the bank's financial statements by external auditors
6 =  Compilation of the bank's financial statements by external auditors
7 =  Other audit procedures (excluding tax preparation work)
8 =  No external audit work

________________

(1)  Including total demand deposits and noninterest-bearing time and savings
     deposits.
(2)  Includes limited-life preferred stock and related surplus.

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
The schedule contains summary financial information extracted from the Company's
balance sheet as of March 31, 1999 and the Statements of Operations for the year
ended December 31, 1998 and is qualified in its entirety by reference to such
financial statements.
</LEGEND>
<MULTIPLIER> 1,000

<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                          11,211
<SECURITIES>                                         0
<RECEIVABLES>                                    3,658
<ALLOWANCES>                                         0
<INVENTORY>                                      7,701
<CURRENT-ASSETS>                                 2,629
<PP&E>                                         262,654
<DEPRECIATION>                                   2,882
<TOTAL-ASSETS>                                 457,904
<CURRENT-LIABILITIES>                           84,564
<BONDS>                                              0
                          172,706
                                          0
<COMMON>                                             2
<OTHER-SE>                                    (99,462)
<TOTAL-LIABILITY-AND-EQUITY>                   457,904
<SALES>                                             29
<TOTAL-REVENUES>                                    29
<CGS>                                                0
<TOTAL-COSTS>                                   43,920
<OTHER-EXPENSES>                                    27
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              11,934
<INCOME-PRETAX>                               (51,155)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                           (51,155)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (51,155)
<EPS-BASIC>                                          0
<EPS-DILUTED>                                        0


</TABLE>


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