ITC DELTACOM INC
S-4/A, 1999-06-04
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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<PAGE>


As filed with the Securities and Exchange Commission on June 4, 1999
                                                 Registration No. 333-78401

- --------------------------------------------------------------------------------
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C.  20549
                                _______________

                         PRE-EFFECTIVE AMENDMENT NO. 1
                                   FORM S-4
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
                                _______________
                              ITC/\DeltaCom, Inc.
            (Exact name of registrant as specified in its charter)

<TABLE>
<S>                              <C>                           <C>
           Delaware                       4813                     58-2301135
(State or other jurisdiction of  (Primary Standard Industrial     (I.R.S. Employer
incorporation or organization)   Classification Code Number)   Identification Number)
</TABLE>
                                ______________

                            1791 O.G. Skinner Drive
                          West Point, Georgia 31833
                                (706) 385-8000

         (Address, including zip code, and telephone number, including
            area code, of registrant's principal executive offices)
                                _______________
                               Andrew M. Walker
                            Chief Executive Officer
                              ITC/\DeltaCom, Inc.
                            1791 O.G. Skinner Drive
                           West Point, Georgia 31833
                                (706) 385-8000

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

            Charles D. Ganz, Esq.                  Nancy J. Kellner, Esq.
         Robert H. Rigsby, Jr., Esq.               Steven M. Kaufman, Esq.
     Sutherland, Asbill & Brennan L.L.P.           Hogan & Hartson L.L.P.
         999 Peachtree Street, N.E.                 555 13th Street, N.W.
           Atlanta, Georgia 30309                  Washington, D.C. 20004
               (404) 853-8000                          (202) 637-5600
                                _______________
          Approximate date of commencement of proposed sale to the public:  As
soon as practicable after this Registration Statement becomes effective.

          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 of 1933, please check
the following box and list the Securities Act of 1933 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(d) under the Securities Act of 1933, check the following box and list the
Securities Act of 1933 registration statement number of the earlier effective
registration statement for the same offering.

          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 the Registration Statement shall become
effective on such date as the Commission, acting pursuant to said Section 8(a),
may determine.

<PAGE>

               ITC/\DELTACOM, INC.             AVDATA SYSTEMS, INC.
             1791 O.G. Skinner Drive            55 Marietta Street
              West Point, GA 31833                  18th Floor
                 (706) 385-8000                 Atlanta, GA 30303
                                                  (404) 479-4800

                   PROSPECTUS                     PROXY STATEMENT



                       1,544,000 Shares of Common Stock
                                 June 4, 1999

DEAR FELLOW STOCKHOLDER,

     AvData Systems, Inc. and ITC/\DeltaCom, Inc. have entered into an Agreement
and Plan of Merger, dated as of April 15, 1999, as amended, which provides for
AvData to merge into a wholly-owned subsidiary of ITC/\DeltaCom, subject to,
among other things, approval of AvData's stockholders. If the merger takes
place, your AvData common stock will be converted into ITC/\DeltaCom common
stock, as described in this prospectus and proxy statement.

     AvData's board of directors have scheduled a special meeting of
stockholders to vote on the merger agreement on July 7, 1999 at 10:00 a.m.,
local time, at AvData's offices located at 55 Marietta Street, 18th Floor,
Atlanta, Georgia 30303. The merger agreement must be approved by a majority of
AvData's outstanding shares of common stock issued as of May 15, 1999. If the
merger agreement is approved, we expect the merger to take place during the
summer of 1999.

     ITC/\DeltaCom's common stock is traded on the Nasdaq Stock Market's
National Market under the symbol ITCD. On April 14, 1999, which was the last
trading day before the public announcement of the merger, the closing price for
a share of ITC/\DeltaCom's common stock was $35.00.

     This prospectus and proxy statement contains important information
concerning ITC/\DeltaCom, Inc., AvData Systems, Inc., the terms of the merger
and the conditions which must be satisfied before the merger can occur. You
should carefully consider the risk factors relating to the merger and to
ownership of ITC/\DeltaCom common stock that are described starting on page 13.

     The required vote to approve the merger agreement is based on the total
number of outstanding shares of AvData common stock and not on the number of
shares which are actually voted. Not voting at the meeting, failing to submit a
proxy card, or abstaining from voting at the meeting has the same effect as
voting against the merger. Please complete, sign, date and return your proxy
card. The AvData board urges you to vote in favor of the merger.


                                    Sincerely,


                                    James H. Black, Jr.
                                    Chairman and Chief Executive Officer

          Your board of directors unanimously recommends that you vote
                          For approval of the merger.

- --------------------------------------------------------------------------------
Neither the Securities and Exchange Commission nor any state securities
regulator has approved or disapproved of these securities or passed upon the
adequacy or accuracy of this prospectus and proxy statement. Any representation
to the contrary is a criminal offense.
- --------------------------------------------------------------------------------

               Prospectus and proxy statement dated June 4, 1999

      First mailed or delivered to stockholders on or about June 8, 1999


<PAGE>

                               [LOGO OF AVDATA]



                             AVDATA SYSTEMS, INC.

                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS


                                                                Atlanta, Georgia

                                                                    June 4, 1999

TO THE STOCKHOLDERS OF
AVDATA SYSTEMS, INC.:

NOTICE IS HEREBY GIVEN that a special meeting of stockholders of AvData Systems,
Inc., a Delaware corporation, will be held on July 7, 1999, at 10:00 a.m., local
time, at AvData's offices located at 55 Marietta Street, 18th Floor, Atlanta,
Georgia 30303, for the following purposes:

1. To consider and vote on a proposal to adopt the Agreement and Plan of Merger,
   dated as of April 15, 1999, as amended (the "Merger Agreement"), by and among
   ITC/\DeltaCom, Inc., a Delaware corporation, Interstate FiberNet, Inc., a
   Delaware corporation and a wholly-owned subsidiary of ITC/\DeltaCom, and
   AvData Systems, Inc., as a result of which, among other things, AvData will
   merge with and into Interstate FiberNet (the "Merger"), and to approve the
   Merger and the other transactions contemplated by the Merger Agreement, as
   more fully described in the prospectus and proxy statement; and

2. To transact such other business as may properly be brought before the special
   meeting.

Only holders of record of AvData common stock at the close of business on May
15, 1999 are entitled to notice of, and will be entitled to vote at, the special
meeting and any adjournments or postponements of the special meeting.  A list of
stockholders entitled to receive notice of and vote at the special meeting will
be available for examination by AvData stockholders at the office of AvData
located at 55 Marietta Street, 18th Floor, Atlanta, Georgia, 30303, during
ordinary business hours for the 10-day period before the special meeting.

Stockholders of AvData have the right to dissent from the Merger and demand that
if the Merger is consummated, they be paid the "fair value" for their shares of
AvData common stock.  The right of any stockholder to receive such "fair value"
payment is contingent on strict compliance with the requirements of the
applicable provisions of Delaware law, which are attached as Appendix B to the
prospectus and proxy statement.


                                             BY ORDER OF THE BOARD OF DIRECTORS



                                                      James H. Black, Jr.
                                            Chairman and Chief Executive Officer


Whether or not you plan to attend the special meeting in person, please
complete, date, sign and return the enclosed proxy card in the enclosed
envelope.  If you attend the special meeting, you may vote in person, even if
you have previously returned your proxy card.
<PAGE>

                               TABLE OF CONTENTS




<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
SUMMARY....................................................................    1
RISK FACTORS...............................................................   13
INFORMATION IN THIS DOCUMENT...............................................   32
THE SPECIAL MEETING........................................................   33
   Date, Time and Place; Matters to Be Considered..........................   33
   Proxies.................................................................   33
   Solicitation of Proxies.................................................   33
   Record Date and Voting Rights...........................................   34
   Recommendation of AvData's Board of Directors...........................   34
THE MERGER.................................................................   35
   General.................................................................   35
   Background of the Merger................................................   35
   Recommendation of AvData's Board of Directors and Reasons for the
    Merger.................................................................   38
   Opinion of AvData's Financial Advisor...................................   39
   Interests of AvData Directors and Management in the Merger..............   43
   Certain AvData Stockholders have Relationships with ITC/\DeltaCom.......   44
   Business Relationship...................................................   44
   Accounting Treatment....................................................   44
   Listing on The Nasdaq National Market...................................   44
   Governmental and Regulatory Approvals...................................   44
   Federal Income Tax Consequences.........................................   45
   Restrictions on Resales by Affiliates...................................   46
   Appraisal Rights of Dissenting Stockholders.............................   47
TERMS OF THE MERGER AGREEMENT AND RELATED TRANSACTIONS.....................   50
   General.................................................................   50
   Structure of the Merger.................................................   50
   Management After the Merger.............................................   50
   Conversion of AvData Common Stock.......................................   51
   Conversion of AvData Stock Options......................................   57
   Exchange of Certificates................................................   58
   Effective Time..........................................................   59
   Representations and Warranties..........................................   59
   Business of AvData Pending the Merger; Other Agreements.................   61
   No Solicitation by AvData...............................................   64
   Indemnification.........................................................   65
   Stockholders' Representative............................................   67
   Conditions to Consummation of the Merger................................   67
   Termination of the Merger Agreement.....................................   70
   Waiver and Amendment of the Merger Agreement............................   72
   Expenses................................................................   72
INFORMATION ABOUT ITC/\DELTACOM............................................   73
INFORMATION ABOUT AVDATA...................................................   83
AVDATA MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
 RESULTS OF OPERATIONS.....................................................   94
   Overview................................................................   94
   Results of Operations...................................................   95
   Liquidity and Capital Resources.........................................   98
   Forward Looking Statements..............................................   99
   Market Risks Associated with Financial Instruments......................   99
   Inflation...............................................................   99
   Year 2000 Issues........................................................   99
   Legal Contingencies.....................................................  101
   New Accounting Standards................................................  101
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF AVDATA...  103
AVDATA EXECUTIVE COMPENSATION..............................................  105
ITC/\DELTACOM CAPITAL STOCK AND COMPARISON OF STOCKHOLDER RIGHTS...........  106
   Description of ITC/\DeltaCom Capital Stock..............................  106
   Comparison of ITC/\DeltaCom Common Stock and AvData Common Stock........  109
OTHER MATTERS..............................................................  114
   Legal Matters...........................................................  114
   Experts.................................................................  114
   Other Matters...........................................................  114
</TABLE>

                                      -i-
<PAGE>

   Where You Can Find More Information ..............................   114

INDEX TO FINANCIAL STATEMENTS........................................   F-1


                                  APPENDICES

APPENDIX A - Agreement and Plan of Merger, as amended.................  A-1

APPENDIX B - Section 262 of The Delaware General Corporation Law......  B-1

APPENDIX C - Opinion of Bowles Hollowell Conner & Co..................  C-1



                                     -ii-                      TABLE OF CONTENTS
<PAGE>

                                    SUMMARY

     This document is a prospectus of ITC/\DeltaCom and a proxy statement of
AvData. This summary highlights selected information from the prospectus and
proxy statement. It does not contain all of the information that is important to
you. You should carefully read the entire prospectus and proxy statement and the
other documents to which this document refers you to fully understand the
merger. See "Where You Can Find More Information" on page 114.

ITC/\DELTACOM, INC.
1791 O.G. Skinner Drive
West Point, Georgia 31833
(706) 385-8000

ITC/\DeltaCom provides integrated voice and data telecommunications services on
a retail basis to mid-sized and major regional businesses in the southern United
States. We are also a leading regional provider of wholesale long-haul services
to other telecommunications companies. In connection with these businesses, we
own, operate and manage an extensive fiber optic network in the southern United
States.

We provide integrated retail telecommunications services to mid-sized and major
regional businesses in a bundled package tailored to the business customer's
specific needs.  These services include:

     .  local exchange services;

     .  long distance services;

     .  toll free calling, calling card and operator services;

     .  Asynchronous Transfer Mode, or "ATM", frame relay, high capacity broad
        band private line services;

     .  primary rate interface connectivity and co-location services to Internet
        service providers;

     .  Internet, intranet and Web page hosting and development services; and

     .  customer premise equipment sales, installation and repair.

As of March 31, 1999, we provided retail services to over 11,600 business
customers in 23 metropolitan areas.  Over the next two years, we intend to
provide a full range of retail services in a total of approximately 42
metropolitan areas throughout the southern United States.

We provide wholesale long-haul services to several other telecommunications
carriers. Our fiber optic network reaches over 80 points of presence, or POPs,
in ten southern states.  This network extends approximately 7,800 route miles,
of which approximately 4,150 miles are owned by ITC/\DeltaCom.  The remaining
approximately 3,650 miles are owned and operated principally by public utilities
but are managed and marketed by us.

In connection with offering local exchange services, we have entered into
interconnection agreements with the following incumbent local exchange carriers:

     .  BellSouth Telecommunications, Inc., for all of its markets;

     .  Southwestern Bell Telephone Company for its Arkansas markets;

     .  GTE Corporation, for its Alabama markets; and

     .  Sprint Corporation, for its Florida markets.

The interconnection agreements allow us to resell the local exchange services of
the incumbent carrier and to interconnect our network with their networks.  This
allows us to offer local exchange services to our current customer base and to
enter new markets with minimal capital expenditures.  We intend to complete
additional interconnection agreements with GTE, Sprint and Southwestern Bell
Telephone Company for other markets that we serve or intend to serve.


AVDATA SYSTEMS, INC.
55 Marietta Street
18th Floor
Atlanta, Georgia  30303
(404) 479-4800

AvData is a provider of satellite and terrestrial-based digital network
solutions, primarily to mid-

                                       1                                 SUMMARY
<PAGE>

size companies based in the southeastern United States and to wireless messaging
and cellular operators nationwide. AvData designs, implements and operates
private communications networks that carry high speed one-way and two-way data,
Internet, intranet and other digital transmissions. AvData delivers high
reliability for these networks based upon its continuous network monitoring (24
hours a day, every day) and its ability to quickly identify and correct network
outages.

As of March 31, 1999, AvData had an installed base of approximately 3,500
revenue-producing sites in North America and the Caribbean.  AvData's revenues
have grown from less than $7 million for 1994 to more than $30 million for 1998
(although AvData's revenues are expected to decline in 1999 following
substantial completion of the buildout under a large customer contract).  AvData
has achieved this growth by increasing its base of revenue-producing sites,
adding terrestrial network solutions to the satellite technology solutions
offered since its founding and through a large, multi-year contract obtained in
September 1995 with PageMart Wireless, Inc., which represents its single largest
network to date.  AvData's recurring revenues have been increasing at the rate
of greater than 20% per year and AvData believes its recurring revenues will
continue to increase in the future (although AvData's non-recurring revenues are
expected to decline in 1999 following substantial completion of the buildout
under the PageMart contract).

AvData believes that the complexity of data networks and network operations and
demand for network solutions will continue to increase.  To capitalize on these
trends, AvData offers network operation and management services that it believes
are attractive for customers seeking to outsource network operations, especially
those for whom network failure is extremely costly.  AvData believes this
service is also attractive for systems integrators seeking to offer a "one-stop
shopping" network solution to their end customers.

AvData uses both satellite and terrestrial capacity to implement networks for
its customers.  AvData acquires capacity from multiple vendors when needed to
satisfy customer demand.  AvData believes that the use of multiple vendors and
diverse routing reduces exposure from failure of a single communications
facility provider, since at least critical portions of customer traffic often
can be relocated from a failed facility to the functioning facility of another
vendor.  AvData believes that a strategic relationship with a facilities owner
such as ITC/\DeltaCom will reduce its facilities cost and make its network
solutions more cost competitive.

AvData's principal customers in recent years include PageMart Wireless, Inc. (a
national paging network with over 1,800 sites on-line), and Motion Industries
(a wholly-owned subsidiary of Genuine Parts Company with over 300 sites).
AvData is largely dependent upon these customers, particularly PageMart, and its
recurring and non-recurring revenues would be adversely affected if AvData lost
these accounts.

Special Meeting of AvData Stockholders (page 33)

The special meeting will be held on July 7, 1999 at 10:00 a.m. at AvData's
offices located at 55 Marietta Street, 18th Floor, Atlanta, Georgia 30303.  At
the special meeting, you will be asked to vote to adopt the merger agreement and
to approve the merger and the transactions contemplated by the merger agreement.


You can vote, or submit a proxy to vote, at the special meeting if you were a
record holder of AvData common stock at the close of business on May 15, 1999.
You can vote your shares by attending the meeting and voting in person or you
can mark the enclosed proxy card with your vote, sign it and mail it in the
enclosed return envelope.  You can revoke your proxy at any time before it is
exercised.

Vote Required (page 34)

For the merger to occur, a majority of the shares of AvData common stock that
were issued and outstanding on May 15, 1999 must approve the merger agreement
and the related transactions.  Please remember that, unlike routine matters
presented to the stockholders, the vote required to approve the merger agreement
is based on the total number of outstanding shares, and not on the number of
shares which are actually voted.

The Merger (page 35)

                                       2                                 SUMMARY
<PAGE>

The merger agreement provides that ITC/\DeltaCom will acquire AvData by merger,
with AvData being merged into Interstate FiberNet, a wholly-owned subsidiary of
ITC/\DeltaCom.  ITC/\DeltaCom and AvData hope to complete the merger during the
summer of 1999.

The merger agreement is included as Appendix A to this prospectus and proxy
statement.  It is the legal document that governs the merger.

What You Will Receive in the Merger (page 51)

As a consequence of the merger, unless you exercise appraisal rights under
Delaware law, the shares of AvData common stock that you own will convert into
the right to receive the following:

 .  shares of ITC/\DeltaCom common stock -- a portion of which will be withheld
   and placed in escrow as security for your and the other AvData stockholders'
   performance of certain indemnity obligations

 .  additional shares of ITC/\DeltaCom common stock which ITC/\DeltaCom may issue
   in the future based upon certain types of revenues generated in 1999 by
   AvData, or, after the merger, the surviving corporation.

If, immediately before the effective time of the merger, you own an outstanding,
unexpired and unexercised option to purchase shares of AvData common stock and
you become an employee of ITC/\DeltaCom or any of its subsidiaries at the
effective time of the merger, you are entitled to the following:

 .  your option will automatically convert into an option to purchase
   proportionate shares of ITC/\DeltaCom common stock

 .  you will also receive an additional option to purchase proportionate shares
   of ITC/\DeltaCom common stock upon the release of the escrow shares described
   above

 .  you will also receive an additional option to purchase proportionate shares
   of ITC/\DeltaCom common stock if ITC/\DeltaCom issues additional shares of
   its common stock to the former AvData stockholders based upon certain types
   of revenues generated during certain periods of 1999 by AvData, or, after the
   merger, the surviving corporation.

The formulas for calculating the amount of ITC/\DeltaCom common stock that you
will receive in the merger are complex, and they can be found in the merger
agreement.  You can see a description of how these formulas work, as well as
some of the possible values of the stock that you could receive on pages 51 to
58.

Exchange of Stock Certificates (page 58)

Before the merger occurs, you will receive a letter of transmittal that will
provide instructions on the procedure for exchanging your stock certificates.

PLEASE DO NOT SEND YOUR STOCK CERTIFICATES AT THIS TIME.

Appraisal Rights of Dissenting Stockholders (page 50)

If you object to the merger, Delaware law permits you to seek relief as a
dissenting stockholder and have the fair value of your shares of AvData common
stock determined by a court and paid to you in cash.

If you are an AvData stockholder and wish to dissent, you must deliver to
AvData, prior to the vote on the merger at the special meeting, a written demand
for appraisal of your shares.  You also must not vote in favor of the merger.

If you own shares of AvData common stock that are held in the name of another
person, such as a broker, bank or nominee, and you wish to seek appraisal, you
must instruct that person to follow the appraisal procedures of Delaware law.
The relevant provisions of Delaware law are technical and complex.  If you wish
to exercise your rights to obtain appraisal of the fair value of your shares,
you are advised to consult, at your expense, with your legal counsel, since the
failure to comply strictly with these provisions may result in waiver or
forfeiture of your appraisal rights.

A copy of the relevant section of Delaware law governing this process is
attached as Appendix B to this prospectus and proxy statement.

What is Needed to Complete the Merger (page 67)

Several conditions must be satisfied before the merger will be completed.  These
include:

                                       3                                 SUMMARY
<PAGE>

 .  adoption of the merger agreement and approval of the merger by the AvData
   stockholders
 .  approval of the merger agreement by ITC/\DeltaCom's board of directors
 .  receipt of all required consents and approvals by the Federal Communications
   Commission ("FCC")
 .  receipt by AvData of an opinion of ITC/\DeltaCom's counsel in form and
   substance reasonably satisfactory
 .  receipt by ITC/\DeltaCom of an opinion of AvData's counsel in form and
   substance reasonably satisfactory
 .  other customary contractual conditions set forth in the merger agreement.

If the law permits, ITC/\DeltaCom or AvData may each waive conditions for the
benefit of their company and stockholders and complete the merger even though
one or more of these conditions has not been met.  They cannot assure you that
the conditions will be satisfied or waived or that the merger will occur.

Indemnification (page 65)

If you own AvData common stock and you do not perfect your appraisal rights
under Delaware law, ITC/\DeltaCom will place a pro rata portion of the
ITC/\DeltaCom common stock you will receive into escrow where it will be
available to indemnify ITC/\DeltaCom, the surviving corporation of the merger
and their officers, directors and significant stockholders against losses due to
AvData's breach of its representations, warranties or agreements in the merger
agreement, as well as certain other matters described in the merger agreement.
This means that after the merger, ITC/\DeltaCom, or any of these other parties
could require that the escrowed stock be delivered to them to pay them for any
harm they suffer, up to $5,000,000, as a result of the above matters or AvData's
failure to perform its agreements or misrepresentation of its condition. Any
such payment would be made from the stock that is held in escrow.

AvData Stockholders' Representative (page 67)

If the merger is approved, the merger agreement provides that Mr. Kenneth F.
Leddick will be appointed attorney-in-fact for AvData's stockholders and will be
authorized to act on behalf of AvData's stockholders in connection with the
indemnity provisions of the merger agreement and the agreement covering the
common stock that ITC/\DeltaCom will hold in escrow pending the AvData
stockholders' performance of their indemnity obligations.  Each AvData
stockholder who votes in favor of the merger confirms such appointment and
authority.

Federal Income Tax Consequences (page 45)

If you exchange shares of AvData common stock for shares of ITC/\DeltaCom common
stock in the merger, AvData expects that you will not recognize gain or loss on
the exchange for United States federal income tax purposes, except to the extent
you receive cash in lieu of fractional shares.  However, different tax
consequences may apply to you because of your individual circumstances or
because special tax rules apply to you.

Determining the actual tax consequences of the merger to you can be complicated.
they will depend on your specific situation and on variables not within the
control of AvData or ITC/\DeltaCom.  you should consult your own tax advisor for
a full understanding of the merger's tax consequences to you.

Accounting Treatment (page 44)

The merger is expected to be accounted for using the purchase method of
accounting.

Governmental and Regulatory Approvals (page 44)

Before the merger can occur, U.S. antitrust authorities must determine not to
seek to prevent the merger and the applicable premerger waiting period must
expire.  In addition, the FCC will also need to approve the proposed transfer of
certain licenses from AvData to ITC/\DeltaCom Communications, Inc.  AvData and
ITC/\DeltaCom have filed all of the required applications or notices with the
FCC and U.S. antitrust authorities. While neither AvData nor ITC/\DeltaCom knows
of any reason why they would not be able to obtain the necessary approvals in a
timely manner, they cannot be certain when or if they will receive them.

                                       4                                 SUMMARY
<PAGE>

Interests of AvData's Directors and Officers in the Merger (page 43)

At the close of business on May 15, 1999, excluding all options to purchase
AvData's common stock, the directors and executive officers of AvData and their
affiliates owned a total of 11,208,645 shares of AvData common stock, which was
approximately 36% of the outstanding shares of AvData common stock on that date.
Some of AvData's directors and officers have interests in the merger that are
different from, or in addition to, their interests as AvData stockholders.
These interests exist because certain directors of AvData are also directors of
ITC/\DeltaCom and/or its affiliates and certain officers of AvData will become
employees of an indirect subsidiary of ITC/\DeltaCom commencing upon the
effective time of the merger.

Termination of the Merger Agreement; Expenses (page 70)

The merger agreement specifies a number of situations when the agreement may be
terminated by ITC/\DeltaCom or AvData, which are described on page 70.  One of
the instances when ITC/\DeltaCom can terminate the merger agreement is if the
closing price of ITC/\DeltaCom common stock is less than $11.50 as of the last
trading day before the date of the merger.

Reasons for the Merger and Recommendation of AvData's Board of Directors
(page 38)

A special committee consisting of AvData's independent directors considered a
variety of factors in recommending that the full board of directors approve the
merger agreement and that the full board recommend to you that you vote your
shares for adoption of the merger agreement.  These factors included:

     . the business and financial condition of AvData and ITC/\DeltaCom
     . the business advantages of a combination
     . the alternatives to the merger
     . the historical valuations of AvData common stock and the value offered by
       the merger
     . the opportunity of AvData stockholders to participate in the potential
       future value of ITC/\DeltaCom.

After considering the recommendation of the special committee and other factors,
AvData's full board of directors concluded that the merger is fair to and in the
best interests of AvData and its stockholders at large, and unanimously
recommends that you vote "FOR" the proposal to adopt the merger agreement.

Differences in the Rights Of Stockholders (page 106)

If you own AvData common stock and receive ITC/\DeltaCom common stock, you would
become a stockholder of ITC/\DeltaCom upon completion of the merger. Your rights
would then be governed by ITC/\DeltaCom's certificate of incorporation and
bylaws, rather than AvData's certificate of incorporation and bylaws. Your
rights as a stockholder of ITC/\DeltaCom would differ from your rights as a
stockholder of AvData.

                                       5                                 SUMMARY
<PAGE>

             Summary Consolidated Financial Data of ITC/\DeltaCom

     The information in the following table has been derived from the
historical financial statements included in ITC/\DeltaCom's prior SEC filings.
You should read the following summary financial information in connection with
ITC/\DeltaCom's historical financial statements and notes thereto.  This
historical financial information is considered a part of this document.  See
"Where You Can Find More Information" on page 114.  The summary historical
statement of operations data for each of the years ended December 31, 1996, 1997
and 1998 and the summary historical balance sheet data for the years then ended,
have been derived from those financial statements that have been audited by
Arthur Andersen LLP, independent public accountants.

The summary historical statements of operations data for the three months ended
March 31, 1998 and 1999 and the historical balance sheet data as of March 31,
1999 have been derived from ITC/\DeltaCom's unaudited consolidated financial
statements and include, in the opinion of management, all adjustments
(consisting of only normal recurring adjustments) necessary to present fairly
the data for such periods.

     The pro forma statements of operations data and other financial data for
the year ended December 31, 1998 presented in the following table give effect to
the following transactions as if each had occurred on January 1, 1998:  (1) the
issuance of our March 1998 senior notes, (2) the redemption of $70 million of
our 1997 senior notes, (3) the issuance of our November 1998 senior notes, (4)
the issuance of our May 1999 convertible subordinated notes, (5) the issuance of
6,037,500 shares of our common stock in May 1999 and (6) the merger with AvData.
The pro forma statements of operations data and other financial data for the
three months ended March 31, 1999 presented in the following table give effect
to the following transactions as if each occurred on January 1, 1998:  (1) the
issuance of our May 1999 convertible subordinated notes, (2) the issuance of
6,037,500 shares of our common stock in May 1999, and (3) the merger with
AvData.  The pro forma balance sheet data as of March 31, 1999 presented in the
following table give effect to (1) the issuance of our May 1999 convertible
subordinated notes, (2) the issuance of 6,037,500 shares of our common stock in
May 1999, and (3) the merger with AvData as if each occurred on March 31, 1999.
The pro forma financial and operating information does not purport to represent
what ITC/\DeltaCom's consolidated results of operations would have been if these
transactions had in fact occurred on these dates, nor does it purport to
indicate the future consolidated financial position or consolidated results of
operations of ITC/\DeltaCom.  The pro forma adjustments are based on currently
available information and certain assumptions that management believes to be
reasonable.

                                       6                             THE SUMMARY
<PAGE>

             Summary Consolidated Financial Data of ITC/\DeltaCom
                       (In thousands, except share data)

<TABLE>
<CAPTION>
                                                                                                     Three months ended
                                              Year ended December 31,                                      March 31,
                             -----------------------------------------------------------  ------------------------------------------
                                                                            Pro forma                                     Pro forma
                                1996(a)       1997(b)(c)        1998         1998(d)           1998           1999         1999(d)
                             -------------  --------------  ------------  --------------  --------------  ------------  ------------
                                                                            (Unaudited)            (Unaudited)           (Unaudited)
<S>                          <C>            <C>             <C>           <C>             <C>             <C>           <C>
Statement of Operations
 Data:
Operating revenues......... $    66,518    $   114,590      $   171,838   $   202,021     $    36,694     $    53,034   $    58,241
                            -----------    -----------      -----------   -----------     -----------     -----------   -----------
Operating expenses:
 Cost of services..........      38,756         54,550           82,979       101,775          16,873          26,761        29,687
 Selling, operations and
  administration...........      18,876         38,255           64,901        73,672          13,567          20,268        22,486
 Depreciation and
  amortization.............       6,438         18,332           30,887        33,200           6,321          11,168        11,767
                            -----------    -----------      -----------   -----------     -----------     -----------   -----------
   Total operating expenses      64,070        111,137          178,767       208,647          36,761          58,197        63,940
                            -----------    -----------      -----------   -----------     -----------     -----------   -----------
Operating income (loss)....       2,448          3,453           (6,929)       (6,626)            (67)         (5,163)       (5,699)
Equity in losses of
 unconsolidated subsidiary.      (1,590)            --               --            --              --              --            --
Interest expense...........      (6,173)       (21,367)         (32,828)      (47,761)         (7,499)        (10,463)      (11,694)
Interest income............         172          4,251            9,753         9,511           2,834           2,389         2,420
Other (expense) income.....          --             --           (2,356)          156          (2,291)            225           225
                            -----------    -----------      -----------   -----------     -----------     -----------   -----------
Loss before income taxes,
 preacquisition loss and
extraordinary item.........      (5,143)       (13,663)         (32,360)      (44,720)         (7,023)        (13,012)      (14,748)
Income tax benefit.........      (1,233)        (3,324)          (6,454)       (6,454)         (2,388)             --            --
Preacquisition loss........          --             74               --            --              --              --            --
                            -----------    -----------      -----------   -----------     -----------     -----------   -----------
Loss before extraordinary
 item......................      (3,910)       (10,265)         (25,906)      (38,266)         (4,635)        (13,012)      (14,748)
Extraordinary item (net of
 income tax)...............          --           (508)          (8,436)           --          (8,436)             --            --
                            -----------    -----------      -----------   -----------     -----------     -----------   -----------
Net loss................... $    (3,910)   $   (10,773)     $   (34,342)  $   (38,266)    $    13,071     $   (13,012)  $   (14,748)
                            ===========    ===========      ===========   ===========     ===========     ===========   ===========
Basic and diluted net loss
 per common share(e):
 Before extraordinary loss.      $(0.10)        $(0.26)          $(0.51)       $(0.66)         $(0.09)         $(0.25)       $(0.25)
 Extraordinary loss........          --          (0.01)           (0.16)           --           (0.17)             --            --
                            -----------    -----------      -----------   -----------     -----------     -----------   -----------
 Net loss..................      $(0.10)        $(0.27)          $(0.67)       $(0.66)         $(0.26)         $(0.25)       $(0.25)
                            ===========    ===========      ===========   ===========     ===========     ===========   ===========
Basic weighted average
 common shares
 outstanding(e)(f).........  38,107,350     40,249,816       50,972,361    58,141,653      50,190,058      51,506,644    58,675,936
Diluted weighted average
 common shares
 outstanding(e)(f).........  38,203,852     40,249,816       50,972,361    58,141,653      50,190,058      51,506,644    58,675,936
</TABLE>

<TABLE>
<CAPTION>
                                                                                          Pro Forma
                                             December 31,                  March 31,       March 31,
                             ------------------------------------------   ---------------------------
                              1996(a)       1997(b)(c)          1998         1999           1999(d)
                             ----------     ----------      -----------   -----------     -----------
                                                                                  (Unaudited)
<S>                         <C>            <C>              <C>           <C>             <C>
Balance Sheet Data:
Working capital............ $     3,415    $   116,446      $   190,118   $   156,041     $   377,952
Total assets...............     113,208        386,104          587,517       579,123         834,160
Long-term debt and capital
 lease obligations,
 including current portions      75,443        203,889          417,934       417,761         517,761
Stockholders' equity.......      19,257        148,266          118,200       105,918         256,067
</TABLE>

                                       7                             THE SUMMARY
<PAGE>

<TABLE>
<CAPTION>
                                                                                                    Three Months Ended
                                                 Year ended December 31,                                March 31,
                                               ------------------------------------------  --------------------------------------
                                                                              Pro forma                               Pro forma
                                 1996(a)         1997(b)(c)       1998         1998(d)        1998         1999        1999(d)
                             ----------------  --------------  -----------  -------------  -----------  ----------  -------------
                                                                             (unaudited)         (unaudited)         (unaudited)
<S>                          <C>               <C>             <C>          <C>            <C>          <C>         <C>
Other Financial Data:
Capital expenditures.......        $ 6,173       $ 43,874         $147,842    $149,181       $ 22,042     $29,315      $29,361
Cash flows (used in)
 provided by operating
 activities................          8,189          6,302            9,512      11,016          9,701      (3,792)      (3,740)
Cash flows used in
 investing activities......         72,694         93,854          118,166     119,507         22,966      29,635       29,681
Cash flows provided by
 financing activities......         65,150        180,625          198,447     198,501        155,633         554          566
EBITDA, as adjusted(g).....          8,886         21,785           23,958      26,575          6,254       6,005        6,068
Ratio of earnings to fixed
 charges(h)................             --             --               --          --             --          --           --
</TABLE>

(a) On January 29, 1996, ITC Holding purchased DeltaCom, Inc. (which is now
    called ITC/\DeltaCom Communications, Inc.), an Alabama corporation
    ("DeltaCom").  DeltaCom's results of operations are included in the
    historical statement of operations data since the date of acquisition.  See
    Note 11 to the consolidated financial statements in ITC/\DeltaCom's Annual
    Report on Form 10-K incorporated herein by reference.
(b) On March 27, 1997, ITC/\DeltaCom purchased certain fiber and fiber-related
    assets, including a significant customer contract for network services in
    Georgia (the "Georgia Fiber Assets").  The results of operations for the
    Georgia Fiber Assets are included in the consolidated statements of
    operations beginning March 27, 1997.  See Note 11 to the consolidated
    financial statements in ITC/\DeltaCom's Annual Report on Form 10-K
    incorporated herein by reference.
(c)  On March 27, 1997, ITC/\DeltaCom purchased the remaining 64% partnership
     interest in Gulf States FiberNet, a partnership between ITC Holding and
     SCANA Communications, Inc.  Gulf States FiberNet's revenues and expenses
     have been included in the consolidated statement of operations data
     effective January 1, 1997 with the preacquisition loss attributable to the
     previous owner deducted to determine the consolidated net loss for the year
     ended December 31, 1997.  See Note 11 to the consolidated financial
     statements in ITC/\DeltaCom's Annual Report on Form 10-K incorporated
     herein by reference.

(d)  Adjustments to the statement of operations data and other financial data
     reflect our 1998 and 1999 financings and the AvData acquisition as if these
     transactions occurred at the beginning of the period presented.  The
     balance sheet data reflect the 1999 financing activities and the AvData
     acquisition as if they occurred on March 31, 1999.
(e)  On July 29, 1998, ITC/\DeltaCom announced a two-for-one stock split of its
     common stock to be effected in the form of a stock dividend.  The record
     date for the stock split was August 18, 1998 and the payment date was
     September 4, 1998.  The common stock began trading giving effect to the
     stock split on September 8, 1998.  All references to number of shares,
     except shares authorized, and to per share information in the consolidated
     financial statements have been adjusted to reflect the stock split on a
     retroactive basis.
(f)  Pursuant to Staff Accounting Bulletin 98, for periods prior to the
     completion of the initial public offering, basic net loss per share is
     computed using the weighted average number of shares of common stock
     outstanding during the period.  Diluted net loss per share is computed
     using the weighted average number of shares of common stock outstanding
     during the period and nominal issuances of common stock and common stock
     equivalents, regardless of whether they are anti-dilutive.
(g)  EBITDA, as adjusted, represents earnings before extraordinary item,
     preacquisition (earnings) loss, equity in losses of unconsolidated
     subsidiaries, net interest, income taxes, depreciation and amortization.
     EBITDA, as adjusted, is provided because it is a measure commonly used in
     the industry.  EBITDA, as adjusted, is not a measurement of financial
     performance under generally accepted accounting principles and should not
     be considered an alternative to net income as a measure of performance or
     to cash flow as a measure of liquidity.  EBITDA, as adjusted, is not
     necessarily comparable with similarly titled measures for other companies.

(h)  Earnings consist of income before income taxes, plus fixed charges.  Fixed
     charges consist of interest charges and amortization of debt issuance costs
     and the portion of rent expense under operating leases representing
     interest (estimated to be one-third of such expense).  Earnings were
     insufficient to cover fixed charges for the years ended December 31, 1996,
     1997, 1998, pro forma 1998, the three months ended March 31, 1999, and the
     pro forma three months ended March 31, 1999 by $5.1 million, $13.7 million,
     $32.4 million, $44.3 million, $14.2 million and $14.7 million,
     respectively.

                                       8                             THE SUMMARY
<PAGE>

                       Summary Financial Data of AvData

     The information in the following table is based on AvData's financial
statements presented later in this prospectus and proxy statement.  You should
read the following summary financial information in connection with those
financial statements, including the notes which accompany them.  The summary
historical statement of operations data for each of the years ended December 31,
1996, 1997 and 1998 and the summary historical balance sheet data for the years
then ended, have been extracted from those financial statements which have been
audited by Arthur Andersen LLP, independent public accountants.  The selected
historical financial data set forth below as of and for the three month periods
ended March 31, 1998 and 1999 were derived from unaudited financial statements
of AvData.  In the opinion of management, the unaudited information includes all
adjustments, consisting of only normal recurring adjustments, necessary for a
fair presentation of the financial position and results of operations of AvData
at the date and for the periods presented.  Results for the three month period
ended March 31, 1999 are not necessarily indicative of the results that may be
expected for the full fiscal year.

<TABLE>
<CAPTION>
                                                                                      Three Months
                                            Year ended December 31,                  Ended March 31,
                                           -------------------------                ----------------
                                        1996          1997         1998            1998           1999
                                        ----          ----         ----            ----           ----
                                                                               (Unaudited)     (Unaudited)
<S>                                  <C>          <C>           <C>          <C>               <C>
STATEMENT OF OPERATIONS DATA:
Sales and service revenue            $16,247,438   $13,529,639  $30,182,711      $ 5,221,260   $5,206,842
                                     -----------   -----------  -----------      -----------   ----------
Cost of sales and service revenue      8,859,881     6,612,267   18,795,435        3,114,364    2,925,944
                                     -----------   -----------  -----------      -----------   ----------
Operating expenses:
 Operations and engineering            1,797,373     2,129,230    2,752,167          610,833      712,768
 Sales and marketing                   2,622,972     2,319,025    3,231,050          604,310      729,607
 General and administrative            1,462,074     1,325,614    2,787,306          497,193      775,536
 Depreciation                            759,498       887,452    1,085,381          272,377      291,919
                                     -----------   -----------  -----------      -----------   ----------
 Total operating expenses              6,641,917     6,661,321    9,855,904        1,984,713    2,509,830
                                     -----------   -----------  -----------      -----------   ----------
Operating income                         745,640       256,051    1,531,372          122,183     (228,932)
Interest income, net                     148,357       151,824      171,386           38,762       30,485
                                     -----------   -----------  -----------      -----------   ----------
Net income                           $   893,997   $   407,875  $ 1,702,758      $   160,945   $ (198,447)
                                     ===========   ===========  ===========      ===========   ==========
</TABLE>

<TABLE>
<CAPTION>
                                                  December 31,                  March 31,
                                   ----------------------------------------------------------
                                        1996          1997         1998             1999
                                        ----          ----         ----             ----
                                                                                 (Unaudited)
<S>                                <C>             <C>          <C>             <C>
BALANCE SHEET DATA:
Current assets                       $ 7,970,926   $ 7,065,656  $ 9,224,548      $ 8,030,578
Total assets                          11,626,245    11,529,125   14,343,165       12,939,934
Current liabilities                    5,100,405     3,777,672    5,253,298        4,062,163
Long-term liabilities                    749,013     1,409,671      936,655          902,478
Stockholders' equity                   5,776,827     6,341,782    8,153,212        7,975,293

<CAPTION>
                                                                                    Three Months Ended
                                             Year ended December 31,                     March 31,
                                     ---------------------------------------------------------------------
                                        1996          1997         1998           1998           1999
                                        ----          ----         ----           ----           ----
                                                                                (Unaudited)   (Unaudited)
<S>                                  <C>           <C>          <C>             <C>           <C>
OTHER FINANCIAL DATA:
Cash flows provided by
operating activities                 $ 1,874,480   $ 1,051,590  $ 1,504,210     $  139,344    $    51,906
Cash flows used in
investing activities                   1,768,356     1,606,602    1,340,529        182,529         45,661
Cash flows provided by
financing activities                         126       297,278       53,898         (9,620)        11,660
</TABLE>

                                       9                             THE SUMMARY
<PAGE>

                          Comparative Per Share Data

     The following table summarizes per share information for ITC/\DeltaCom and
AvData on a historical, pro forma combined, and equivalent pro forma basis.  The
loss per share was calculated using income (loss) from continuing operations
before extraordinary items.  The pro forma loss per share amounts do not include
any adjustments to reflect potential expense reductions or revenue enhancements
that may result from the merger or the effect of repurchases of ITC/\DeltaCom or
AvData common stock subsequent to the stated periods.  The pro forma data do not
necessarily indicate the results of future operations or the actual results that
would have occurred had the merger occurred at the beginning of the periods
presented.  The pro forma financial data have been included in accordance with
the rules of the SEC and are provided for comparative purposes only.

     The ITC/\DeltaCom pro forma loss per share data for the year ended December
31, 1998 and the three months ended March 31, 1999 include adjustments to
reflect the acquisition of AvData and our 1998 and 1999 financing activities as
if these transactions occurred on January 1, 1998.

     The AvData equivalent pro forma amounts are calculated by multiplying the
pro forma combined per share amounts by 0.03678, which is the fraction of a
share of ITC/\DeltaCom common stock that one share of AvData common stock will
convert into based upon the assumptions of a $25.00 ITC/\DeltaCom common stock
price and the number of AvData outstanding common shares at March 31, 1999.  See
"Terms of the Merger and Related Transactions -- Conversion of AvData Common
Stock."


<TABLE>
<CAPTION>
                                                               For the
                                                             year ended
                                                          December 31, 1998
                                                        ---------------------
<S>                                                     <C>
ITC/\DeltaCom Common
Stock
Income from continuing operations
before extraordinary items
  Basic and diluted net loss
  per share
     Historical.........................................       $(0.51)
     Pro forma for the merger(1)........................       $(0.66)
 AvData Common Stock
 Income from continuing operations
  before extraordinary items
    Basic and diluted net loss
    per share
      Historical........................................       $   --
      Pro forma for the merger..........................       $(0.02)
</TABLE>

<TABLE>
<CAPTION>
                                                          AS OF OR FOR THE
                                                            THREE MONTHS
                                                        ended March 31, 1999
                                                        --------------------
<S>                                                     <C>
Income from continuing operations
before extraordinary items


 Basic and diluted net loss
 per share

   Historical.........................................                $(0.25)
   Pro forma for the merger(1)........................                $(0.25)

 Book value per share at
 period end
   Historical.........................................                $ 2.05
   Pro forma for the merger(1)........................                $ 4.35

Income from continuing operations
 before extraordinary items

   Basic and diluted net loss
   per share
      Historical (2)..................................                $(0.01)
      Pro forma for the merger........................                $(0.01)

   Book value per share at
   period end
      Historical(2)...................................                $ 0.26
      Pro forma equivalent for
      the merger......................................                $ 0.16
</TABLE>

______________

(1) Also includes pro forma adjustments to reflect ITC/\DeltaCom's 1998 and 1999
    financing activities.  See "Pro Forma Financial Data" on page 78.

(2) Calculated by dividing stockholders' equity by the actual number of shares
    of AvData common stock outstanding at the end of the period presented.
    There were 30,772,170 shares of AvData common stock outstanding as of March
    31, 1999.

                                      10                             THE SUMMARY
<PAGE>

Dividends.  Neither ITC/\DeltaCom nor AvData has ever declared or paid a cash
dividend with respect to its common stock.

                                       11                            THE SUMMARY
<PAGE>

Comparative Market Data

ITC/\DeltaCom.  ITC/\DeltaCom common stock is, and the shares of ITC/\DeltaCom
common stock offered to AvData stockholders will be, listed on The Nasdaq
National Market and traded under the symbol "ITCD."  ITC/\DeltaCom common stock
has been quoted on The Nasdaq National Market since ITC/\DeltaCom's initial
public offering on October 29, 1997.  Before October 29, 1997, no established
public trading market for ITC/\DeltaCom common stock existed.  The following
table sets forth for the periods indicated the high and low sales price per
share of ITC/\DeltaCom common stock as reported by The Nasdaq National Market.

<TABLE>
<CAPTION>

                                                      High(a)          Low(a)
                                                      -----------------------
<S>                                                   <C>           <C>
       1997
            Fourth Quarter (from October 29, 1997)..  $10.719       $ 6.938
       1998
            First Quarter...........................  $16.625       $ 8.312
            Second Quarter..........................   21.500        13.312
            Third Quarter...........................   25.500        14.500
            Fourth Quarter..........................   20.500         8.500
       1999
            First Quarter...........................  $22.000       $12.500
            Second Quarter (through May 26, 1999)...  $40.750       $19.750
</TABLE>

     (a)  Stock prices give effect to the stock split in the form of a stock
dividend paid on September 4, 1998.

     On April 14, 1999, the last full trading day before the public announcement
of the proposed merger, the closing price of ITC/\DeltaCom common stock was
$35.00 per share.  On May 26, 1999, which is the most recent practicable date
prior to the mailing of this proxy statement and prospectus, the closing price
reported for ITC/\DeltaCom common stock was $22.125 per share.

     As of May 15, 1999, there were 707 holders of record of ITC/\DeltaCom
common stock.

AvData.  There is no established public trading market for AvData common stock.

                                       12                            THE SUMMARY
<PAGE>

RISK FACTORS

     You should carefully consider the following risk factors relating to the
merger and to ownership of ITC/\DeltaCom common stock before you decide whether
to adopt the merger agreement and approve the merger. You should also consider
the other information in this prospectus and proxy statement (including the
matters addressed in "Information in this Document" on page 32) and the other
documents considered a part of this prospectus and proxy statement.  See "Where
You Can Find More Information" on page 114.


Risks Relating to the Merger:
- -----------------------------

The value of the ITC/\DeltaCom common stock you receive in the merger may depend
on its market price at the time of the merger.

     The value of the ITC/\DeltaCom common stock you receive in the merger will
decline in the event the average market price of ITC/\DeltaCom common stock for
the five trading days immediately prior to the effective time of the merger is
less than $25.00.  If the average market price of ITC/\DeltaCom common stock
falls within a range of $25.00 to $31.39, then the number of shares of
ITC/\DeltaCom common stock that you receive in the merger will adjust so that
the value of the stock remains constant. However, if the average market price of
ITC/\DeltaCom common stock is less than $25.00, the number of shares of
ITC/\DeltaCom common stock that you receive becomes fixed based upon an assumed
stock price of $25.00. This means that you would receive the same number of
shares of ITC/\DeltaCom common stock no matter how far below $25.00 the price of
the stock is at the time of the merger, which would reduce the overall value of
the consideration that you receive in the merger. On May 26, 1999, which is the
most recent practicable date prior to the mailing of this proxy statement and
prospectus, the closing price reported for ITC/\DeltaCom common stock was
$22.125 per share.

ITC/\DeltaCom may not be able to successfully integrate AvData into its
operations.

     The integration of AvData into ITC/\DeltaCom's operations involves a number
of risks, including:

     .    difficulty integrating AvData's operations and personnel

     .    diversion of management attention

     .    potential disruption of ongoing business

     .    inability to retain key personnel

     .    inability to successfully incorporate AvData's assets and rights into
          ITC/\DeltaCom's service offerings

     .    inability to maintain uniform standards, controls, procedures and
          policies

     .    impairment of relationships with employees, customers or vendors

     Failure to overcome these risks or any other problems encountered in
connection with the merger or other similar transactions could slow
ITC/\DeltaCom's growth or lower the quality of its services, which could reduce
customer demand and ultimately the value of the ITC/\DeltaCom common stock that
you will receive in the merger.  As discussed below, difficulties integrating
AvData into ITC/\DeltaCom's operations may also reduce the value of the earn-out
consideration that you receive, which depends upon the performance of AvData
(or, after the merger, the surviving corporation).

                                       13                           RISK FACTORS
<PAGE>

Unless AvData and the surviving corporation achieve substantial growth in
recurring terrestrial revenues, AvData stockholders will receive little or no
earn-out consideration.

     Part of the consideration that you receive in exchange for your shares of
AvData common stock will be the potential right to receive additional earn-out
shares of ITC/\DeltaCom common stock.  Under the formula for earn-out
consideration, 93% of the earn-out shares depend solely on the level of
recurring terrestrial revenues of the surviving corporation.  Recurring
terrestrial revenues have not been a large part of AvData's revenues to date.
You will not receive any of the 93% of the earn-out shares unless the recurring
terrestrial revenues of the surviving corporation in December 1999 exceeds the
figure in AvData management's current plan.  You will only receive the full 93%
of the earn-out shares if the recurring terrestrial revenues of the surviving
corporation in December 1999 is approximately double the figure in AvData
management's current plan, although credit will be given to the surviving
corporation for new recurring terrestrial revenue sales of ITC/\DeltaCom's
products which were not contemplated in AvData's original business plan.  A
chart giving the numbers of earn-out shares based on the percentages of
achievement of AvData management's current plan is included below in "Terms of
the Merger Agreement and Related Transactions--Conversion of AvData Common
Stock."

The merger consideration held in escrow is subject to forfeiture if
representations by AvData in the merger agreement are not true or if certain
liabilities materialize.

     If representations by AvData in the merger agreement are not true and
ITC/\DeltaCom suffers any loss as a result, or if certain categories of
liabilities specified in the merger agreement materialize, then ITC/\DeltaCom
will deduct its losses from the portion of the merger consideration that will be
held in escrow.  This will reduce the share of the merger consideration received
by each AvData stockholder on a pro rata basis.


Several members of AvData's board of directors may have conflicts of interests
in the merger.

     Four directors of AvData also serve as directors of ITC/\DeltaCom.  Because
of this overlap of directors, AvData's board of directors appointed a special
committee of disinterested directors to consider the advisability of the merger
to AvData and its stockholders.  However, the merger was approved by AvData's
full board of directors.  AvData cannot assure you that the conflicts of
interest that relate to overlapping directors did not influence the AvData
board's consideration of the merger.


A Majority of the outstanding shares of AvData common stock are held by
stockholders who also have relationships with ITC/\DeltaCom and its directors.

     Seven of the directors of ITC/\DeltaCom beneficially own approximately 26%
of the outstanding stock of AvData.  In addition, eight of the nine directors of
ITC/\DeltaCom also serve as directors of ITC Holding Company, Inc., which owns
approximately 21% of the outstanding stock of AvData.  One director of
ITC/\DeltaCom serves as the managing general partner of South Atlantic Venture
Fund Limited Partnership, which owns approximately 18% of the outstanding stock
of AvData.  The directors of ITC/\DeltaCom, along with ITC Holding Company and
South Atlantic Venture Fund Limited Partnership collectively own or control
approximately 65% of the outstanding AvData common stock.  If these persons vote
(or cause to be voted) all of this stock in AvData in favor of the merger, the
merger will be legally approved by the AvData stockholders.  In deciding whether
to vote these shares in favor of the merger, the directors of ITC/\DeltaCom,
along with ITC Holding Company and South Atlantic Venture Fund Limited
Partnership are free to consider the benefits of the merger to ITC/\DeltaCom and
to themselves.

                                       14                           RISK FACTORS
<PAGE>


Risks Relating to the Business of ITC/\DeltaCom:
- -----------------------------------------------

We expect to continue to have operating losses and negative cash flow after
capital expenditures which may result in our failure to meet our working capital
and debt service requirements

     As we have implemented our business strategy to expand our
telecommunications service offerings, expand our fiber optic network and enter
new markets, we have experienced operating losses and negative cash flow after
capital expenditures. We expect this will continue during the next several years
as we continue to expand our business and make substantial capital expenditures.
If we cannot achieve or sustain operating profitability and positive net cash
flow, we may not be able to obtain the funds necessary to continue our
operations or to repay amounts due on our outstanding indebtedness. We cannot
assure you that we will achieve or sustain profitability or positive net cash
flow in the future. See "--We may not have, or be able to obtain, the
significant amounts of capital that we need to expand our network, operations
and services."

We may not have, or be able to obtain, the significant amounts of capital that
we need to expand our network, operations and services

     We need significant capital to expand our network, operations and services
according to our business plans.  We have continued to accelerate expansion of
our fiber optic network and our Retail Services segment for which we have made
significant capital expenditures.  During 1998, we made capital expenditures of
approximately $148 million, and through the first three months of 1999, we made
capital expenditures of approximately $29.3 million.  We currently estimate that
our capital expenditures will total approximately $250 million to $300 million
through 2000.  In addition, we may make substantial capital expenditures after
2000 and are in the process of evaluating those requirements.  If our estimates
are inaccurate and/or we do not have access to the capital that we require, we
will need to change our business plans.  This could have a material adverse
effect on our business, financial condition and results of operations.

     Our planned capital expenditures primarily will be for:

     .   continued development and construction of our fiber optic network,
         including transmission equipment;

     .   continued addition of facilities-based local telephone service to our
         bundle of integrated telecommunications services, including acquisition
         and installation of switches and related equipment;

     .   the addition of switching capacity, electrical equipment and additional
         co-location space in connection with the expansion of our provision of
         local telecommunications services to Internet service providers;

     .   market expansion; and

     .   infrastructure enhancements, principally for information systems.

     Although we cannot assure you that our capital resources will permit us to
fund the planned expansion of our network, operations and services, we expect to
have sufficient funds to enable us to expand our business as currently planned.
We believe that these funds will be provided by:

     .  cash on hand;

                                       15                           RISK FACTORS
<PAGE>


     .   cash flow from operations; and

     .   borrowings expected to be available under our $50.0 million revolving
         credit facility.

     If our estimates are not accurate for any reason, we may need to seek
additional financing:

     .   to fund capital expenditures;

     .   for working capital;

     .   to fund new business activities related to our current and planned
         businesses; and

     .   to acquire, or enter into joint ventures and strategic alliances with,
         other businesses.

     If our current sources of funds are unavailable to fund our business plans,
we may need to seek additional funds. These additional funds may come from
public and private equity and debt financings, but we cannot assure you that we
will be able to obtain any additional funds on a timely basis, on terms that are
acceptable to us or at all. Our inability to obtain the capital that we need to
implement our current business plans could have a material adverse effect on our
business, financial condition and results of operations.

     Our estimate of future capital requirements is a "forward-looking
statement" within the meaning of the safe harbor provisions of the Private
Securities Litigation Reform Act of 1995. The actual amount and timing of our
future capital requirements may differ substantially from our estimate due to
factors such as:

     .   regulatory, technological, or competitive developments;

     .   unforeseen delays;

     .   cost overruns;

     .   changes in demand for our services; and

     .   new market developments and opportunities.

We have significant debt and we may be unable to service that debt

     We have significant debt. Set forth below are some of our recent historical
results on a consolidated basis, adjusted to reflect the issuance of our 4-l/2%
convertible subordinated notes, the concurrent common stock offering and the
AvData merger as if each had occurred on the date, or at the beginning of the
periods, shown.

<TABLE>
<CAPTION>
              At March 31, 1999                           Three months ended March 31, 1999
- ---------------------------------------------   --------------------------------------------------------
<S>                                             <C>
Indebtedness of $517.8 million                  Earnings insufficient to cover fixed charges by
                                                $14.7 million
Stockholders' equity of $256.1 million          EBITDA, as adjusted, less capital expenditures
                                                and interest expense of negative $35.0 million
</TABLE>

                                       16                           RISK FACTORS
<PAGE>


     EBITDA, as adjusted, represents earnings before other income (expense), net
interest, income taxes, depreciation and amortization. We have included EBITDA,
as adjusted, data because it is a measure commonly used in the industry. EBITDA,
as adjusted, is not a measure of financial performance under generally accepted
accounting principles and should not be considered an alternative to net income
as a measure of performance or to cash flows as a measure of liquidity.

     We cannot assure you that we will be able to improve our earnings before
fixed charges or that we will be able to meet our debt service obligations. We
will be in default under the terms of our debt obligations if:

     .   we are unable to generate sufficient cash flow or otherwise obtain
         funds necessary to make required payments or

     .   we otherwise fail to comply with the various covenants in our debt
         obligations.

     A default would permit the holders of the indebtedness to accelerate its
maturity.  This, in turn, could cause defaults under our other indebtedness and
would have a material adverse effect on our business, financial condition and
results of operations.

     Even if we are able to meet our debt service obligations, the amount of
debt we have could adversely affect us in a number of ways, including by:

     .   limiting our ability to obtain any necessary financing in the future
         for working capital, capital expenditures, debt service requirements or
         other purposes;

     .   limiting our flexibility in planning for, or reacting to, changes in
         our business;

     .   placing us at a competitive disadvantage relative to our competitors
         who have lower levels of debt;

     .   making us more vulnerable to a downturn in our business or the economy
         generally; and

     .   requiring us to use a substantial portion of our cash flow from
         operations to pay principal and interest on our debt, instead of
         contributing those funds to other purposes, such as working capital and
         capital expenditures.

To be able to meet our debt service requirements we must successfully implement
our business strategy.  Therefore, we will need to:

     .   expand our network;

     .   obtain and retain a significant number of customers; and

     .   experience significant and sustained growth in our cash flow.

     We cannot assure you that we will successfully implement our business
strategy or that we will be able to generate sufficient cash flow from operating
activities to meet our debt service obligations and working capital
requirements. Our ability to meet our obligations will be dependent upon our
future performance, which will be subject to prevailing economic conditions and
to financial, business and other factors.

                                       17                           RISK FACTORS
<PAGE>


     If the implementation of our business strategy is delayed or unsuccessful,
or if we do not generate sufficient cash flow to meet our debt service and
working capital requirements, we may need to seek additional financing. If we
are unable to obtain such financing on terms that are acceptable to us, we could
be forced to dispose of assets to make up for any shortfall in the payments due
on our indebtedness under circumstances that might not be favorable to realizing
the highest price for those assets. A substantial portion of our assets consist
of intangible assets, the value of which will depend upon a variety of factors,
including without limitation, the success of our business. As a result, we
cannot assure you that our assets could be sold quickly enough, or for amounts
sufficient, to meet our obligations.

OUR CURRENT INDEBTEDNESS CONTAINS RESTRICTIVE COVENANTS

     We are subject to restrictions under:

     .   the indenture pursuant to which our 93/4% Senior Notes were issued;

     .   the indenture pursuant to which our 87/8% Senior Notes were issued;

     .   the indenture pursuant to which our 11% Senior Notes were issued; and

     .   our $50.0 million revolving credit facility.

These restrictions affect and, in certain cases, significantly limit or
prohibit, among other things, our ability and the ability of our subsidiaries
to:

     .   incur additional indebtedness;

     .   create liens;

     .   make investments;

     .   issue stock; and

     .   sell assets.

     Our Senior Note indentures restrict our ability to incur indebtedness,
other than indebtedness to finance the acquisition of equipment, inventory or
network assets and other specified indebtedness, by requiring compliance with
specified leverage ratios. In addition, if and when we borrow funds under our
credit facility, our credit facility will require us to maintain specified
financial ratios. We cannot assure you that we will be able to maintain the
required ratios following such borrowing. In addition, these restrictive
covenants may adversely affect our ability to finance our future operations or
capital needs, or to engage in other business activities that may be in our
interest. See "--We have significant debt and we may be unable to service that
debt."

We may not be able to manage our growth successfully

     The expansion and development of our business will depend upon, among other
things, our ability to:

     .   successfully implement our sales and marketing strategy;

     .   evaluate markets;

     .   design fiber routes;

                                       18                           RISK FACTORS
<PAGE>


     .   secure financing;

     .   install facilities;

     .   acquire rights of way;

     .   obtain any required government authorizations;

     .   interconnect to, and co-locate with, facilities owned by incumbent
         local exchange carriers; and

     .   obtain appropriately priced unbundled network elements and wholesale
         services from the incumbent local exchange carriers.

These all must be accomplished in a timely manner, at reasonable cost and on
satisfactory terms and conditions.  Our rapid growth, particularly in the
provision of retail services, has placed, and the growth we anticipate in our
other services may in the future also place, a significant strain on our
administrative, operational and financial resources.  Our ability to continue to
manage our growth successfully will require us to:

     .   enhance our operational, management, financial and information systems
         and controls; and

     .   hire and retain qualified sales, marketing, administrative, operating
         and technical personnel.

We cannot assure you that we will be able to do so.  In addition, as we increase
our service offerings and expand our targeted markets, there will be additional
demands on customer support, sales and marketing, administrative resources and
network infrastructure.  These demands will be intensified if we continue to
accelerate our expansion plans.  Our inability to manage our growth effectively
could have a material adverse effect on our business, results of operations and
financial condition.

Development and expansion of our business, including through acquisitions, is
subject to regulatory and market risks

  The successful implementation of our business strategy to provide an
integrated bundle of telecommunications services and expand our operations will
be subject to a variety of risks, including:

     .   competition and pricing;

     .   the availability of capital on favorable terms;

     .   regulatory uncertainties;

     .   operating and technical problems;

     .   the need to establish and maintain interconnection and co-location
         arrangements with incumbent local exchange carriers in our target
         markets; and

     .   the potential difficulties of offering local exchange services.

In addition, the expansion of our business may involve acquisitions of other
telecommunications businesses and assets that, if made, could divert our
resources and

                                       19                           RISK FACTORS
<PAGE>


management time and could require integration with our existing operations. We
cannot assure you that any acquisitions could be successfully integrated into
our operations or that any acquired business will perform as expected. Our
failure to implement our expansion and growth strategy successfully would have a
material adverse effect on our business, results of operations and financial
condition.

Our business is subject to significant competitive pressures

     Our industry is highly competitive and the level of competition,
particularly with respect to pricing, is increasing. For example, prices for
long distance services and for data transmission services have declined
substantially in recent years. These prices are expected to continue to decline,
which will adversely affect our gross margins as a percentage of revenues. In
addition, many of our existing and potential competitors have financial,
technical and other resources and customer bases and name recognition far
greater than our own. We cannot assure you that we will be able to achieve or
maintain adequate market share or revenues, or compete effectively in any of our
markets.

     .   We face intense competition from incumbent local exchange carriers,
         especially BellSouth

Local telephone and intraLATA long distance services substantially similar to
those that we offer are also offered by the incumbent local exchange carriers
serving the markets that we serve or plan to serve.  BellSouth
Telecommunications., Inc. is the local exchange carrier and a particularly
strong competitor in most of these markets.  BellSouth and other incumbent local
exchange carriers already have relationships with every customer.  These
carriers may be able to subsidize services of the type we offer from service
revenues not subject to effective competition, which could result in even more
intense price competition.  In addition, successful implementation of our
business plan for provision of local telephone services is dependent on our
ability to obtain the local loop and other services and facilities from
BellSouth.  We expect that competition from BellSouth in the provision of local
telephone services will continue to be intense.  By impeding, hindering or
delaying provision of services and facilities to us, BellSouth could inhibit or
prevent us from providing local telephone service to our customers, which would
place us at a substantial competitive disadvantage.

     .   Other competitors and technologies in our industries may further
         increase competition

Providers of long distance services and Carriers' Carrier Services.  We compete
- ------------------------------------------------------------------
with long distance carriers in the provision of interLATA long distance services
and wholesale long-haul services to other telecommunications carriers (which we
call Carriers' Carrier Services).  The interLATA long distance market consists
of three major competitors, AT&T, MCI WorldCom and Sprint.  Other companies
operate or are building networks in the southern United States and other
geographic areas.  Our other competitors in the long distance services and
Carriers' Carrier Services markets are likely to include Regional Bell Operating
Companies, or RBOCs, providing out-of-region and, with the future removal of
regulatory barriers, in-region long distance services, other competitive local
exchange carriers, microwave and satellite carriers, and private networks owned
by large end-users.  We also compete with direct marketers, equipment vendors
and installers, and telecommunications management companies with respect to
certain portions of our business.

Wireless providers.  In the future, providers of wireless services may offer
- ------------------
products that increasingly become a substitute for, rather than only a
supplement to, a customer's wireline communications services.  Competition with
providers of wireless telecommunications services may be intense.  Many of our
potential wireless competitors

                                       20                           RISK FACTORS
<PAGE>


have substantially greater financial, technical, marketing, sales, manufacturing
and distribution resources than our own. In recent years, the FCC has made
additional spectrum available through public auction for use in wireless
communications, including broadband local loops.

New transmission technologies.  We also may increasingly face competition from
- -----------------------------
companies offering long distance data and voice services over the Internet.
Such companies could enjoy a significant cost advantage because at present they
do not pay carrier access charges or universal service fees.  Other competitors
are also deploying new transmission technologies in their networks to upgrade
capacity and reduce costs.  For example, in June 1998, Sprint announced its
intention to offer voice, data and video services over its nationwide ATM
network, which Sprint anticipates will significantly reduce its cost to provide
such services.  Sprint plans to bill its customers based upon the amount of
traffic carried, without regard to the time required to send the traffic or the
traffic's destination.  Other advanced networks are being deployed by other
carriers.

Competitive local exchange carriers.  We will face competition in the markets in
- -----------------------------------
which we operate from one or more competitive local exchange carriers operating
fiber optic networks, in some cases in conjunction with the local cable
television operator. AT&T, MCI WorldCom, Sprint and others have begun to offer
local telecommunications services, either directly or in conjunction with other
competitive local exchange carriers in certain locations, and are expected to
expand that activity as opportunities created by the Federal Telecommunications
Act of 1996 develop. BellSouth has announced plans to provide local service in
areas of its region where it is not the incumbent local exchange carrier, and to
establish its own less regulated "competitive local exchange carrier"
subsidiaries.

     .   Business combinations and strategic alliances may increase competition

         A continuing trend toward business combinations and strategic alliances
     in the telecommunications industry may further increase competition. For
     example, the national long distance carrier WorldCom has merged with MCI.
     MCI WorldCom also acquired competitive local exchange carriers, including
     MFS Communications Company, Inc. and Brooks Fiber Properties, Inc. AT&T has
     acquired another competitive local exchange carrier, Teleport
     Communications Group Inc., as well as Tele-Communications, Inc., a major
     cable television operator, and has announced plans to provide services in
     conjunction with Time Warner Inc. AT&T has also announced plans to enter
     into a joint venture with British Telecommunications plc to combine the
     international assets and operations of each company, including their
     existing international networks. On May 11, 1998, SBC Communications, a
     holding company that owns Southwestern Bell and Pacific Bell, and Ameritech
     announced their intent to merge which, if approved, would mean that the
     seven original RBOCs have been reduced to four. Other proposed or completed
     acquisitions include:

         .    Qwest's acquisition of LCI International, Inc. in June 1998 which
              created the nation's fourth-largest long distance carrier

         .    Bell Atlantic's proposed acquisition of GTE announced in July 1998

         .    SBC's proposed strategic alliance with Williams Communications

         .    BellSouth's recently announced equity investment in, and marketing
              agreement with, Qwest

         .    AT&T's recently announced bid to acquire Media One

                                      21                            RISK FACTORS
<PAGE>


These types of strategic alliances and business combinations could put us at a
significant competitive disadvantage.

     .  Recent legislation and regulation may also increase competition

     Long distance services.  The Telecommunications Act of 1996 creates the
     ----------------------
     foundation for increased competition in the long distance market from the
     incumbent local exchange carriers. Such competition could affect the
     successful implementation of our business plans. For example, certain
     provisions of the Telecommunications Act eliminate previous prohibitions on
     the provision of both retail and carriers' carrier interLATA long distance
     services by the RBOCs, subject to compliance by such companies with
     requirements set forth in the Telecommunications Act and implemented by the
     FCC. The FCC has rejected RBOC applications to provide interLATA services,
     including applications from BellSouth covering the states of South Carolina
     and Louisiana. However, the FCC, various states and other parties are
     actively considering actions that could expedite approval of interLATA
     service. BellSouth has filed applications to provide such service in
     Alabama, Georgia, Kentucky and North Carolina and is expected to apply for
     authority in other states in the near future. In addition, legislation to
     relax the interLATA restriction may be considered in Congress. We could be
     adversely affected if the RBOCs, and particularly BellSouth, are allowed to
     provide wireline interLATA long distance services within their own regions
     before local competition is established.

     Broadband local services.  The FCC has proposed new rules that would give
     ------------------------
     the major incumbent local exchange carriers more freedom in these areas if
     they offer such services through separate subsidiaries. Specifically,
     incumbent local exchange carriers would be allowed to offer advanced data
     services through such subsidiaries without dominant carrier regulation and
     without the obligation to make network facilities and services of that
     affiliate available to competitors. The FCC is expected to take action on
     this matter during 1999. We are evaluating how such actions would impact
     our ability to compete with BellSouth and other incumbent local exchange
     carriers. In a related development, cable operators are beginning to offer
     customers broadband access to the Internet, and AT&T has made arrangements
     to acquire the use of such cable network for telecommunications services on
     an exclusive basis. We could be adversely affected if in the future we are
     not able to offer broadband services to certain customers due to
     limitations on our ability to reach such customers over broadband local
     network facilities.

     Additional flexibility for incumbent local exchange carriers.   The FCC is
     ------------------------------------------------------------
     considering proposed new policies and rules that would grant the incumbent
     local exchange carriers additional flexibility in the pricing of interstate
     access services, and states are considering or are expected to consider
     incumbent local exchange carrier requests for similar regulatory relief
     with respect to intrastate services. Such flexibility is likely to come
     first for services offered in the business market. Any pricing flexibility
     or other significant deregulation of the incumbent local exchange carriers
     could have a material adverse effect on our business. If the incumbent
     local exchange carriers are permitted to engage in increased volume and
     discount pricing practices prior to full competition in local services, or
     if the incumbent local exchange carriers seek to delay implementation of
     interconnection by competitors to their networks or charge excessive
     interconnection fees, our results of operations and financial condition
     could be adversely affected.

     Access charges; universal service.   We also could be adversely affected by
     ---------------------------------
     FCC or state regulatory decisions affecting access charges and universal
     service. Such decisions could increase our costs of providing service or
     limit our ability to recover those costs from rates charged to customers.
     The effect on us would be particularly

                                       22                           RISK FACTORS
<PAGE>


     adverse to the extent that we bear a disproportionate share of these costs
     compared to our competitors. These matters are the subject of ongoing
     regulation, and important issues regarding the future of access and
     universal service charges remain to be resolved.

We face significant challenges in offering local services, including the need to
make significant investments and compete with established providers

     We will have to continue to make significant operating and capital
investments, and address numerous operating complexities, to implement our local
exchange services strategy.  We are required to:

     .   develop new products, services and systems;

     .   develop new marketing initiatives;

     .   train our sales force in connection with selling these services; and

     .   implement the necessary billing and collecting systems for these
         services.

     In addition, we expect to continue to face significant pricing and product
competition from the RBOCs, whose core business is providing local dial tone
service and who are currently the dominant providers of services in their
markets.  We also will face significant competitive product and pricing
pressures from other incumbent local exchange carriers and from other companies
like us which attempt to compete in the local services market.

     We also expect that the addition of local services to our bundle of
telecommunications services will continue to have a negative impact on our gross
margin as a percentage of revenues.  This is because the gross margin on the
resale of local services through incumbent local exchange carrier facilities is
lower than the gross margin on our other lines of business.  Gross margin means
gross revenues less cost of services.

The long distance transmission industry is subject to pricing pressures and
risks of industry over-capacity

     Since shortly after the AT&T divestiture in 1984, the long distance
transmission industry generally has experienced over-capacity and declining
prices.  These trends have exerted downward pressure affecting our Carriers'
Carrier Services and we anticipate that prices for our Carriers' Carrier
Services will continue to decline over the next several years.  Dramatic and
substantial price reductions in the long distance industry could force us to
reduce our prices significantly, which could have a material adverse effect on
our business, financial condition and results of operations.

     We expect these price declines will occur because:

     .   some long distance carriers are expanding their capacity generally;

     .   other existing long distance carriers and potential new carriers are
         constructing new fiber optic and other long distance transmission
         networks in the southern United States, and BellSouth is likely to
         receive authority to use its excess capacity to market in-region
         interLATA services;

     .   expansion and new construction of transmission networks is likely to
         create substantial excess capacity relative to demand in the short or
         medium term. Persons building such lines are likely to install fiber
         optic cable that provides

                                       23                           RISK FACTORS
<PAGE>


         substantially more transmission capacity than will be needed because
         the cost of the actual fiber is a relatively small portion of the
         overall cost of constructing new lines;

     .   recent technological advances may also greatly expand the capacity of
         existing and new fiber optic cable; and

     .   the marginal cost of carrying an additional call over existing fiber
         optic cable is extremely low.

     An increase in the capacity of our competitors could adversely affect our
business, even if we are also able to increase our capacity.  If industry
capacity expands so much that available capacity exceeds overall demand along
any of our routes, severe additional pricing pressure could develop.  See "--Our
business is subject to significant competitive pressures" for more information
on the competitive pressures in our industry.

The local and long distance industries are subject to significant government
regulation, and the regulations may change

     We are required to obtain authorizations from the FCC and state public
utility commissions to offer some of our telecommunications services. We are
also required to file tariffs for many of our services and to comply with local
license or permit requirements relating to installation and operation of our
network. Any of the following could have a material adverse effect on our
business, results of operations and financial condition:

     .   failure to maintain proper federal and state tariffs;

     .   failure to maintain proper state certifications;

     .   failure to comply with federal, state or local laws and regulations;

     .   failure to obtain and maintain required licenses and permits;

     .   burdensome license or permit requirements to operate in public rights-
         of-way; and

     .   burdensome or adverse regulatory requirements or developments.

     In addition, we recently entered the newly-created competitive local
telecommunications services industry.  The local telephone services market was
opened to competition through the passage of the Telecommunications Act.
Because the FCC and the states are still implementing many of the rules and
policies necessary for local telephone competition, and addressing other related
issues, it is uncertain how successful the Telecommunications Act will be in
creating local competition.  There is little practical experience under the
decisions that have been made to date.  If we are required to change or delay
our offering of local services as a result of changes in regulatory
requirements, we may experience adverse effects on our business, results of
operations and financial condition.

We depend on access service from incumbent local exchange carriers to provide
long distance and interexchange private services, and we could be adversely
affected if we do not benefit from reduced access charges at least as much as
our competitors

     We depend on incumbent local exchange carriers to provide access service
for the origination and termination of our toll long distance traffic and
interexchange private

                                       24                           RISK FACTORS
<PAGE>


lines. Historically, charges for such access service have made up a significant
percentage of the overall cost of providing long distance service. In 1998, the
FCC implemented changes to its interstate access rules that, among other things,
have reduced per-minute access charges and substituted new per-line flat rate
monthly charges. The FCC also approved reductions in overall access rates, and
established new rules to recover subsidies to support universal service and
other public policies. Additional access charge adjustments will be implemented
in the future. The impact of these changes on us or our competitors is not yet
clear. We could be adversely affected if we do not experience access cost
reductions proportionally equivalent to those of our competitors. New Internet-
based competitors continue to be exempt from these charges, which could give
them a significant cost advantage in this area.

If we are unable to interconnect with BellSouth and incumbent local exchange
carriers on acceptable terms, our ability to offer local telephone services will
be adversely affected

     In August 1996, the FCC adopted rules and policies (1) implementing the
local competition provisions of the Telecommunications Act and (2) imposing
obligations on the incumbent local exchange carriers, including the RBOCs, to
enter into interconnection agreements with new competitive entrants like
ITC/\DeltaCom. We depend on our interconnection agreements with incumbent local
exchange carriers such as BellSouth, GTE and Sprint to:

     .   provide local telephone service through access to local loops,
         termination service and, in some markets, central office switches of
         such carriers;

     .   resell local telephone services that we obtain from the incumbent local
         exchange carriers on a wholesale basis; and

     .   obtain operational support to ensure timely delivery to us of network
         elements and wholesale services from the incumbent local exchange
         carriers.

     In January 1999, the U.S. Supreme Court upheld the FCC's authority to adopt
and implement these rules, but many aspects of such implementation remain to be
determined.  For example, the FCC will be reconsidering the circumstances in
which it is necessary for new carriers to use particular network elements of the
incumbent exchange carriers.  Any restriction on the availability of network
elements could have a materially adverse effect on us.

     Incumbent local exchange carriers meet their obligations under the
Telecommunications Act through the use of interconnection agreements negotiated
with competitive local exchange carriers under regulatory supervision.  Such
agreements have been the subject of ongoing disputes, and key issues remain
open.  Our ability to successfully negotiate interconnection agreements on a
timely basis and on favorable terms is critical to our ability to provide local
services on a competitive and profitable basis.  We cannot assure you that we
will be able to enter into or renew interconnection agreements that permit us to
offer local services at rates that are both profitable and competitive.  Any
successful effort by the incumbent local exchange carriers to deny or
substantially limit our access to their network elements or wholesale services
would have a material adverse effect on our ability to provide local telephone
services.  This would have a material adverse effect on our business, results of
operations, and financial condition.

     Our interconnection agreement with BellSouth is our most significant
interconnection agreement, enabling us to provide local services in all nine
markets in which BellSouth operates.  That agreement currently allows us to
provide local service on a resale basis or by purchasing all unbundled network
elements required to provide local

                                       25                           RISK FACTORS
<PAGE>


service on a facilities basis, without having to buy or build our own
facilities. The terms of that interconnection agreement, including interim
pricing terms to which we and BellSouth have agreed, have been approved by state
regulatory authorities in all states in which BellSouth operates. These interim
pricing terms remain subject to review and modification by such authorities. In
addition, the BellSouth interconnection agreement does not resolve all
operational issues. We and BellSouth are continuing to negotiate to resolve
those issues.

     The BellSouth interconnection agreement expires on July 1, 1999.  We have
begun negotiations with BellSouth to renew the terms of the interconnection
agreement.  In the event we fail to agree with BellSouth on renewal terms by
July 1, 1999, the agreement provides that the parties will continue to exchange
traffic under the current agreement until such time as renewal terms, conditions
and prices are ordered by a state commission or negotiated by the parties.  The
new terms, conditions and prices would then be effective retroactive to July 1,
1999.  We cannot assure you that we will be able to renew the interconnection
agreement with BellSouth on favorable terms, or at all.

     Under the Telecommunications Act, the RBOCs will not be permitted to
provide in-region interLATA long distance services until there is adequate
competition in the local services industry. This provides some incentive to the
RBOCs to provide access to their facilities to competitive new entrants such as
ITC/\DeltaCom. We cannot assure you, however, that once BellSouth or other RBOCs
are permitted to offer long distance service, they will continue to be willing
to enter into interconnection agreements with us that will enable us to provide
local services on competitive and profitable terms.

We are dependent upon rights of way and other third party agreements to expand
and maintain our fiber optic network

     To construct and maintain our fiber optic network, we have obtained
easements, rights of way, franchises and licenses from various private parties,
including actual and potential competitors and local governments. We cannot
assure you that we will continue to have access to existing rights of way and
franchises after the expiration of our current agreements, or that we will
obtain additional rights necessary to extend our network on reasonable terms. In
addition, third parties may challenge our use of rights of way obtained by
others. If a franchise, license or lease agreement were terminated and we were
forced to remove or abandon a significant portion of our network, such
termination could have a material adverse effect on our business, results of
operations, and financial condition. Similarly, our business plans could be
adversely affected if our network expansion is hindered through delays or
denials of rights of way, easements or related licenses on competitive terms.

We are dependent on our network infrastructure, portions of which we do not own

     Network agreements may be terminated.  We have effectively extended our
     ------------------------------------
network with minimal capital expenditures by entering into marketing and
management agreements with three public utility companies to sell long-haul
private line services on the fiber optic networks owned by these companies.
Under these agreements, which have remaining terms ranging from three to six
years, we generally earn a commission based upon a percentage of the gross
revenues generated by the sale of capacity on the utility's networks.  We also
have an agreement to buy and sell capacity with Carolinas Fibernet, which
manages fiber optic facilities in North Carolina and South Carolina.
Cancellation or non-renewal of any of these agreements could materially
adversely affect our business, results of operations, and financial condition.

     Some of our agreements are non-exclusive.  In addition, two of our three
     ----------------------------------------
agreements with the public utility companies are nonexclusive, and we may
encounter competition

                                       26                           RISK FACTORS
<PAGE>


for capacity on the utilities' networks from other service providers that enter
into comparable arrangements with the utilities. Any reduction in the amount of
capacity that is made available to us could adversely affect us. To the extent
that we are unable to establish similar arrangements in new markets, we may be
required to make additional capital expenditures to extend our fiber optic
network.

     We may experience network equipment failures or cable cuts.  Our business
     ----------------------------------------------------------
also could be materially adversely affected by a cable cut or equipment failure
in our fiber optic network.  A substantial portion of our owned and managed
fiber optic network is not protected by electronic redundancy in the event of a
total cable cut.  Electronic redundancy enables us to reroute traffic to another
fiber in the same fiber sheath in the event of a partial fiber cut or
electronics failure.

We are dependent on certain large customers for a significant percentage of our
revenues and we cannot assure you that we will be able to retain those customers

     The table below sets forth, for the years ended December 31, 1997 and 1998,
the percentage of our consolidated revenues accounted for by our two largest
Carriers' Carrier customers and our five largest Retail Services customers.

<TABLE>
<CAPTION>
                                               Year Ended December 31,           Year Ended December 31,
                                            ----------------------------       ------------------------------
                                                         1997                              1998
                                                         ----                              ----
<S>                                         <C>                                <C>
Two largest Carriers' Carrier
customers.                                     Approximately 12.5% of             Approximately 13.1% of
                                                consolidated revenues             consolidated revenues
Five largest Retail Services
customers.                                     Approximately 10.0% of             Approximately 8.5% of
                                                consolidated revenues             consolidated revenues
</TABLE>

     We cannot assure you that we will be able to retain our customers. The loss
of, or a significant decrease of business from, any of our largest customers
would have a material adverse effect on our business, results of operations and
financial condition.

     For both Carriers' Carrier Services and Retail Services, our customers
generally have concurrent arrangements with more than one service provider.
This enables our customers to reduce their use of our services and switch to
other providers without incurring significant expense.  Our agreements with our
customers generally provide that the customer may terminate service without an
"early discontinuance charge" in the event of specified types of outages in
service and for other defined causes.  As of March 31, 1999, our Carriers'
Carrier business had remaining future long-term contract commitments totaling
approximately $130.3 million.  Some of those contractual commitments provide
that, if the customer is offered lower pricing with respect to any circuit by
another carrier, the customer's commitment to us will be reduced to the extent
we do not match the price for such circuit and the customer purchases such
circuit from the other carrier.

We are dependent on sophisticated billing, customer service and information
systems

     We depend on sophisticated information and processing systems to grow,
monitor costs, bill customers, provision customer orders and achieve operating
efficiencies. As we increase our provision of dial tone and switched local
access services, the need for enhanced billing and information systems will also
increase. Our inability to identify adequately all of our information and
processing needs, or to upgrade systems as necessary, could have a material
adverse effect on our ability to reach our objectives, on our financial
condition and on our results of operations.

                                       27                           RISK FACTORS
<PAGE>


Failure to obtain Year 2000 compliance may have adverse effects on us

     The Year 2000 issue is the result of computer programs using two digits,
rather than four, to define the applicable year.  Because of this programming
convention, software, hardware or firmware may recognize a date using "00" as
the year 1900 rather than the year 2000.  This could result in system failures,
miscalculations or errors causing disruptions of operations or other business
problems, including, among others, an inability to process transactions, send
invoices, or engage in similar normal business activities.  Our Year 2000
readiness program is described below.  However, we cannot know the actual
effects of the Year 2000 issue on our business and operations until the Year
2000.  If we and/or our major vendors, third party network service providers,
and other material service providers and customers fail to adequately address
our respective Year 2000 issues in a timely manner, this could have a material
adverse effect on our business, results of operations, and financial condition.

     We have undertaken a comprehensive program to address the Year 2000 issue
with respect to the following:

     .   our information technology and operating systems, including our network
         switching, customer service, call detail and billing systems;

     .   our non-information technology systems, such as buildings, plant,
         equipment and other infrastructure systems that may contain embedded
         microcontroller technology;

     .   the systems of our major vendors, third party network service providers
         and other material service providers, insofar as they relate to our
         business; and

     .   our major Carriers' Carrier and Retail Services customers.

     Our Year 2000 program involves:

     .   a wide-ranging assessment of the Year 2000 problems that may affect us;

     .   the development of remedies to address the problems discovered in the
         assessment phase;

     .   testing of the remedies; and

     .   the preparation of contingency plans to deal with worst case scenarios.

     As part of the assessment phase of this program, we have identified
substantially all of the major components of the systems described above.  To
determine the extent to which those systems are vulnerable to the Year 2000
issue, we:

     .   evaluated our internally developed software applications;

     .   inventoried and assessed the facilities and equipment utilized by
         ITC/\DeltaCom; and

     .   made inquiries of substantially all of our significant hardware,
         software and other equipment vendors, third party network service
         providers, other material service providers and material customers
         requesting detailed, written information related to Year 2000
         compliance.

                                       28                           RISK FACTORS
<PAGE>


     To date, we have received and analyzed responses from a substantial
majority of our major vendors and service providers and from our significant
Carriers' Carrier and Retail Services customers. We are investigating, and
intend to closely monitor, the Year 2000 readiness of the three public utilities
that own and operate approximately 3,650 miles of our approximately 7,800-mile
fiber optic network. All of those utilities have indicated that they are
addressing the issue. In addition, we have begun to follow up with respect to
those entities that have not yet responded to our Year 2000 inquiries.

     Based upon the results of our assessment efforts, we conducted remediation
and testing of at-risk systems identified by the assessment. After we completed
our internal, integrated systems testing, we began to conduct laboratory-
simulated integrated systems testing in an effort to demonstrate Year 2000
compliance of our systems as they interface with external systems and equipment
of major vendors, third party network providers, other material service
providers and customers. We expect the integrated systems testing will be
completed by June 30, 1999. We continue to develop contingency plans to handle
our most reasonably-likely worst case Year 2000 scenarios. We expect to complete
preparation of our contingency plans by the end of the third quarter of 1999.
These contingency plans will continue to be refined and updated through the end
of 1999 based upon, among other things, responses from third party inquiries. A
failure to meet this target could materially impact our business, results of
operations and financial condition.

     Through the end of March 31, 1999, we incurred approximately $1.5 million
in costs for our Year 2000 program. We currently estimate that, in 1999, we will
incur expenses which are not expected to exceed approximately $1.0 million to
complete our Year 2000 compliance work. These costs, which may vary from the
estimates, have been, and will continue to be, expensed as incurred.

We are subject to risks associated with rapid changes in technology

     The telecommunications industry is subject to rapid and significant changes
in technology. In addition, we may be required to select in advance one emerging
technology over another, but it will be impossible to predict with any
certainty, at the time we are required to make our investment, which technology
will prove to be the most economic, efficient or capable of attracting customer
usage. Unexpected developments, or our failure to adapt to them, could have a
material adverse effect on our business, results of operations and financial
condition.

Our success depends on our ability to attract and retain key personnel

     Our business is currently managed by a small number of key management and
operating personnel.  We do not have any employment agreements with, nor do we
maintain "key man" insurance on, these employees.  The loss of the services of
key personnel, or the inability to attract, recruit and retain sufficient or
additional qualified personnel, could have a material adverse effect on our
business, results of operations and financial condition.

Our operating results could vary significantly from period to period

     Our revenues and operating results could vary significantly from period to
period for many reasons, including:

     .   significant expenses associated with the construction and expansion of
         our network and services;

     .   competition and regulatory developments;

                                       29                           RISK FACTORS
<PAGE>


     .   changes in market growth rates for our products and services;

     .   availability or announcement of alternative technologies; and

     .   general economic conditions.

     These factors and any resulting fluctuations in our operating results will
make period to period comparisons of our financial condition less meaningful and
could have a material adverse effect on our business, results of operations and
financial condition.

We have several large stockholders who may influence our affairs

     As of March 31, 1999, Campbell B. Lanier, III beneficially owned
approximately 16% of ITC/\DeltaCom's outstanding common stock. To the extent
that Mr. Lanier exercises his voting and investment rights in concert with other
stockholders, Mr. Lanier and such other stockholders may be able to exercise
control over our business by virtue of their voting power with respect to the
election of directors and other actions requiring stockholder approval.

We do not pay dividends

     We have never declared or paid any cash dividends on our capital stock and
we do not anticipate paying cash dividends in the foreseeable future.
Additionally, our Senior Note indentures and our revolving credit facility
restrict our ability to pay dividends.

Several provisions in our certificate of incorporation and bylaws could have
effects that conflict with the interests of our stockholders

     Our certificate of incorporation and bylaws and the General Corporation Law
of the State of Delaware contain provisions that could make it more difficult
for a third party to acquire control of us, even if such change in control would
be beneficial to our stockholders. In particular, the classification of our
board of directors may delay or impede the removal of incumbent directors and
therefore could have the effect of delaying a change in control. In addition,
our certificate of incorporation authorizes the board of directors to issue
shares of our preferred stock, in one or more series, without further
stockholder approval and upon such terms and conditions, and having such rights,
privileges and preferences, as the board of directors may determine. Any such
issuances of preferred stock could make it more difficult for a third party to
acquire control of us.

The market price of our common stock has fluctuated significantly

     The market price of our common stock has fluctuated over a wide range since
it began trading publicly after our initial public offering in October 1997. See
"Summary-Comparative Market Data." The market price may continue to fluctuate in
the future.

     The market price of our common stock could be subject to significant
fluctuations in response to various factors and events, including, among other
things,

     .   the depth and liquidity of the trading market for our common stock;

     .   quarterly variations in actual or anticipated operating results and
         growth rates;

     .   changes in estimates by analysts;

     .   market conditions in the industry;

                                       30                           RISK FACTORS
<PAGE>


     .    announcements by competitors;

     .    regulatory actions; and

     .    general economic conditions.

     In addition, the stock market in recent years has experienced significant
price and volume fluctuations that have often been unrelated to the operating
performance of companies.  These fluctuations have particularly affected the
market prices of the stocks of telecommunications companies.

     Any of these events would likely result in a material adverse effect on the
market price of our common stock.

                                      31                            RISK FACTORS
<PAGE>

INFORMATION IN THIS DOCUMENT


     Important information in the documents referred to under the heading "WHere
You Can Find More Information" is considered a part of, but not included
directly in, this prospectus and proxy statement.  You may obtain this
information without charge upon written or oral request to ITC/\deltACom, Inc.,
1791 O.G. Skinner Drive, West Point, Georgia 31833, Attn:  Investor Relations,
Telephone (706) 385-8000.  To obtain timely delivery, you must request such
information no later than June 25, 1999.

     Some of the statements contained in or considered a part of this prospectus
and proxy statement discuss future expectations, contain projections of results
of operations or financial condition or state other forward-looking information.
Those statements are subject to known and unknown risks, uncertainties and other
factors that could cause the actual results to differ materially from those
contemplated by the statements.  The "forward-looking" information is based on
various factors and was derived using numerous assumptions.  In some cases, you
can identify these so-called forward-looking statements by words like "may,"
"will," "should," "expects," "plans," "anticipates," "believes," "estimates,"
"predicts," "potential," or "continue" or the negative of those words and other
comparable words.  You should be aware that those statements only reflect our
predictions.  Actual events or results may differ substantially.  Important
factors that could cause our actual results to be materially different from the
forward-looking statements are disclosed under the heading "Risk Factors" and
throughout this prospectus and proxy statement.

                                      32            INFORMATION IN THIS DOCUMENT
<PAGE>

THE SPECIAL MEETING


     This prospectus and proxy statement is first being mailed or delivered by
AvData to its stockholders on or about June 8, 1999, and is accompanied by the
notice of the special meeting and a form of proxy for use at the special meeting
and at any adjournments or postponements thereof.


   Date, Time and Place; Matters to Be Considered


     The special meeting is scheduled to be held on July 7, 1999, at 10:00 a.m.
local time, at AvData's offices located at 55 Marietta Street, 18th Floor,
Atlanta, Georgia 30303.  At the special meeting, you will be asked to consider
and vote on (1) a proposal to adopt the merger agreement and approve the merger
and the transactions contemplated by the merger agreement, and (2) such other
matters as may properly be submitted to a vote at the special meeting.  Under
the merger agreement, AvData would be merged with and into Interstate FiberNet,
which would continue as a wholly-owned subsidiary of ITC/\DeltaCom.


   Proxies


     The accompanying form of proxy is for your use to allow you to vote at the
special meeting if you cannot or do not wish to attend and vote in person.  You
may revoke your proxy at any time before it is exercised, by submitting to the
Corporate Secretary of AvData written notice of revocation or a properly
executed proxy with a later date, or by attending the special meeting and voting
in person.  Written notices of revocation and other communications with respect
to the revocation of proxies should be addressed to AvData Systems, Inc., 55
Marietta Street, 18th Floor, Atlanta, Georgia  30303, Attention: Corporate
Secretary.  All shares represented by valid proxies received and not revoked
before they are exercised will be voted in the manner specified in such proxies.
If no specification is made, such shares will be voted in favor of the adoption
of the merger agreement and approval of the merger and the transactions
contemplated by the merger agreement.

     AvData's board of directors is not currently aware of any other matters
which will come before the special meeting.  If any other matter should be
presented at the special meeting for action, the persons named in the
accompanying proxy card will vote the proxy in their own discretion.

     PLEASE DO NOT SEND YOUR STOCK CERTIFICATES WITH YOUR PROXY CARD.


   Solicitation of Proxies


     AvData will bear the entire cost of soliciting proxies from you, including
the printing costs of this prospectus and proxy statement and related materials.
In addition to soliciting proxies by mail, AvData will request banks, brokers
and other record holders to send proxies and proxy material to the beneficial
owners of AvData common stock and secure their voting instructions.  AvData will
reimburse such record holders for their reasonable expenses in so doing.  AvData
intends to use several of its officers and regular employees, who will not be
specially compensated, to solicit proxies from stockholders, either personally
or by telephone, telegram, facsimile or electronic or United States mail.

                                      33                     THE SPECIAL MEETING
<PAGE>

   Record Date and Voting Rights


     AvData's board of directors has selected the close of business on May 15,
1999 as the record date for the special meeting.  Under the Delaware General
Corporation Law and AvData's bylaws, only holders of record of shares of AvData
common stock on the record date will be entitled to notice of and to vote at the
special meeting.  As of the record date, there were  approximately 112 record
holders of a total of 30,772,170 shares of AvData common stock eligible to be
voted at the special meeting.

     Shares of AvData common stock present in person at the special meeting but
not voting, and shares of AvData common stock for which AvData has received
proxies but with respect to which holders of such shares have abstained, will be
counted as present at the special meeting for purposes of determining the
presence of a quorum.  Brokers who hold shares of AvData common stock in nominee
or street name for customers who are the beneficial owners of such shares are
prohibited from giving a proxy to vote shares held for such customers with
respect to the matters to be voted upon at the special meeting without specific
instructions from such customers.  Shares represented by proxies returned by a
broker holding such shares in street name will be counted for purposes of
determining whether a quorum exists, even if such shares are not voted in
matters where discretionary voting by the broker is not allowed.

     The required vote of AVDATA's stockholders is based on the total
number of outstanding shares of AvData's common stock and not on the number of
shares which are actually voted.  If you do not submit a proxy card or do not
vote in person at the stockholder meeting, or if you abstain from voting, you
effectively are voting AGAINST the merger agreement and the merger.

     For additional information about beneficial ownership of AvData common
stock by stockholders owning more than 5% of the AvData common stock and by
directors and executive officers of AvData, see "Security Ownership of Certain
Beneficial Owners and Management of AvData."


   Recommendation of Avdata's Board of Directors


     AvData's board of directors has determined that the merger is fair to and
in the best interests of AvData and its shareholders at large, and, therefore,
has unanimously approved the merger agreement.  AvData's board unanimously
recommends that you vote FOR adoption of the merger agreement. See "The
Merger--Recommendation of AvData's Board of Directors and Reasons for the
Merger."

                                      34                     THE SPECIAL MEETING
<PAGE>

THE MERGER

   General


     The boards of directors of ITC/\DeltaCom, AvData and Interstate FiberNet
have each unanimously approved their respective entities entering into the
merger agreement, which provides for the merger of AvData with and into
Interstate FiberNet, with Interstate FiberNet as the surviving corporation of
the merger.  The merger is subject to final approval of the ITC/\DeltaCom and
Interstate FiberNet boards of directors and certain other closing conditions.
In the merger, each AvData stockholder, other than those who exercise their
appraisal rights, will receive shares of ITC/\DeltaCom common stock in exchange
for his or her shares of AvData common stock.  Each of these AvData stockholders
may also receive additional shares of ITC/\DeltaCom common stock in the future,
to be determined in accordance with formulas specified in the merger agreement
that are based upon specified revenues generated by AvData (or, after the
merger, the surviving corporation) during 1999.  See "Terms of the Merger
Agreement and Related Transactions--Conversion of AvData Common Stock."  As of
May 26, 1999, which is the most recent practicable date prior to the date of
this proxy statement and prospectus, an AvData stockholder would receive
approximately $0.81573 in the form of ITC/\DeltaCom common stock in exchange for
each share of AvData common stock that he or she owns.  Fractional shares of
ITC/\DeltaCom common stock will not be issued in the merger, and AvData
stockholders otherwise entitled to a fractional share will be paid in cash for
such fractional share.


   BAckground of the Merger


     Since early 1997, AvData has been approached from time to time by a number
of companies seeking a business combination with AvData.  During this period,
AvData engaged Bowles Hollowell Conner ("BHC"), formerly Wheat First Butcher
Singer, as its financial advisor to advise the AvData board of directors with
respect to the various proposals presented by the potential acquirors.

     On or about December 1, 1998, Andrew Walker, Chief Executive Officer of
ITC/\DeltaCom, telephoned James Black, Chief Executive Officer of AvData, to
express an interest in AvData and to initiate discussions between the two
companies which could potentially lead to a mutually beneficial business
combination.  ITC/\DeltaCom, pursuant to a marketing agreement, is a sales
channel for AvData.

     On December 8, 1998, Mr. Black and Juliet Reising, then Vice President and
Chief Financial Officer of AvData, made a presentation to Mr. Walker and Douglas
Shumate, Senior Vice President and Chief Financial Officer of ITC/\DeltaCom,
which included AvData's strategic plan, certain financial projections and a tour
of AvData's facilities.  As a result of this meeting and information
subsequently provided, ITC/\DeltaCom communicated to AvData that it would be
interested in pursuing a business combination in which it would acquire AvData
for $20 million in ITC/\DeltaCom stock.  Based on the previous independent
valuations of AvData, Mr. Black and Ms. Reising believed that the proposed
purchase price was at the lower end of the range of the fair value of AvData as
a stand alone company.

     On January 19, 1999, the AvData board of directors met to consider whether
to pursue ITC/\DeltaCom's proposal. Due to the fact that several directors serve
on both ITC/\DeltaCom's and AvData's boards of directors and the potential
conflicts of interests as a result thereof, the AvData board appointed a
special, strategic committee consisting of Messrs. James D. Elliott, Jr., Warren
B. French, Jr. and Kenneth F. Leddick, all of whom are disinterested directors
since they have no relationship with ITC/\DeltaCom, to act on behalf of the
board of directors in considering the potential acquisition of AvData by
ITC/\DeltaCom or some other sale of AvData. Based on the advice

                                      35                              THE MERGER
<PAGE>

of Mr. Black and Ms. Reising, the board concluded to allow Mr. Black and Ms.
Reising to continue to negotiate the terms of a potential business combination
with ITC/\DeltaCom and to report to the strategic committee regarding the
progress of such negotiations.

     On January 25, 1999, the strategic committee held its first meeting, via
conference call, with Mr. Black and Ms. Reising also participating.  The
strategic committee considered the proposal made by ITC/\DeltaCom, which was
summarized by Mr. Black and Ms. Reising, based on a preliminary term sheet and
valuation of AvData at $20 million.  The strategic committee decided that in
order to determine the fairness of the ITC/\DeltaCom proposal, it would retain
BHC to serve as financial advisor with respect to a sale of AvData and to
solicit, on a limited basis, other potential acquirors of AvData.  The strategic
committee formulated a list of potential strategic purchasers based on AvData's
current business, geographical location and discussions with companies who had
previously expressed an interest in a potential business combination with
AvData.  It was determined that Mr. Black would provide the list to BHC
following the meeting so that BHC could begin the process of approaching these
companies on behalf of AvData.  Shortly thereafter, BHC developed a confidential
private offering memorandum to present to the companies it would approach on
behalf of AvData.

     The strategic committee held another meeting, via conference call, on
February 8, 1999, in which Mr. Black and Ms. Reising participated.  BHC was also
present at the meeting and presented its preliminary financial analysis of
AvData.  The strategic committee and BHC discussed the valuation presentation.
In addition, Mr. Black and Ms. Reising updated the strategic committee on the
ongoing negotiations with ITC/\DeltaCom. They reported that BHC was assisting in
the negotiations by providing financial analysis based on a number of factors,
including a discounted cash flow analysis, a financial comparison of similar
companies, and examples of similar, recent acquisitions.

     On February 10, 1999, Messrs. Walker and Shumate met with Mr. Black and Ms.
Reising to further negotiate the purchase price of AvData.  At that meeting
ITC/\DeltaCom introduced the concept of an "earn-out" provision to increase the
purchase price to a range which the strategic committee, based on the BHC
financial analysis, believed to be closer to the estimated value of AvData.
Executives of both companies participated in a conference call on February 12,
1999, in which ITC/\DeltaCom proposed a detailed "earn-out" provision structured
primarily on future revenues produced by AvData after the consummation of an
acquisition by ITC/\DeltaCom.

     On February 17, 1999, the strategic committee held a meeting in which Mr.
Black and Ms. Reising updated the strategic committee on the negotiations with
ITC/\DeltaCom and in particular, focused on the "earn-out" proposal and certain
other terms of the transaction.  Mr. Black also updated the strategic committee
as to the progress BHC had made to date in contacting other prospective
acquirors of AvData.  At that time, none of the solicited companies had made a
written proposal to BHC.  At the February 17, 1999 meeting, the strategic
committee authorized Mr. Black and Ms. Reising to develop a term sheet for the
transaction with ITC/\DeltaCom, including a revised "earn-out" provision which
would incorporate revenue goals that officers of AvData believed to be
achievable when sales of ITC/\DeltaCom products by AvData are added to AvData's
sales plan.

     Mr. Black and Ms. Reising, with the assistance of the other AvData
officers, developed a revised "earn-out" proposal and response to the
ITC/\DeltaCom term sheet for the transaction.  They presented these to the
strategic committee at a meeting on February 20, 1999.  The strategic committee
discussed the "earn-out" provision, including the term of the earn-out and
achievability of the revenue goals.  The strategic committee determined that Mr.
Black and Ms. Reising should present the revised proposals to ITC/\DeltaCom and
continue negotiations with respect to this transaction.  BHC reported that,
based on its communications with other potential acquirors, none of the other
companies solicited would be able to structure the transaction as a tax-free
exchange and that the time frame for putting a transaction together would be
much longer than AvData was willing to accept due to the high degree of
disruption to the operations of the business while a transaction was being
negotiated by the officers of AvData.

                                      36                              THE MERGER
<PAGE>

     On February 24, 1999, Messrs. Walker and Shumate met with Mr. Black and Ms.
Reising to consider AvData's revised earn-out proposal and certain other terms
of the transaction.  At that meeting, the parties reached agreement as to all
major terms of the transaction, other than the indemnification provisions.

     Mr. Black and Ms. Reising reported the status of the negotiations to the
strategic committee at a meeting held on February 25, 1999.  The strategic
committee authorized the officers of AvData to finalize negotiations of the
terms of the deal, including a resolution of the indemnification provisions, and
to proceed directly to the negotiation of a definitive merger agreement without
completing the negotiation of a letter of intent.  The strategic committee also
authorized Mr. Black to give the full AvData board of directors an update on the
status of the negotiations with ITC/\DeltaCom without calling a formal board
meeting to do so.

     On February 25, 1999, Mr. Black and Mr. Walker discussed the terms of the
indemnification provisions and reached agreement regarding this outstanding
issue of the transaction and agreed to proceed immediately with negotiating a
definitive merger agreement.

     The strategic committee met on March 29, 1999 to review the progress of
merger agreement negotiations.  At that meeting, Sutherland, Asbill & Brennan
LLP, special counsel to AvData for the merger transaction, gave an overview of
outstanding issues relating to the merger agreement and BHC gave a preliminary
fairness opinion based on the terms of the current merger agreement draft.  The
strategic committee was advised that officers of each company and their counsel
were meeting on March 30 and 31, 1999 to attempt to finalize the terms and
conditions of the merger.

     On March 30 and 31, 1999, officers of ITC/\DeltaCom and AvData, along with
counsel for each company, met to negotiate a definitive merger agreement and
discuss issues that had arisen from ITC/\Delta due diligence efforts.  These
meetings ended with resolution of many, but not all, of the open issues and with
ITC/\DeltaCom continuing due diligence on specified items.

     Over the course of the next two weeks, ITC/\DeltaCom and AvData executives
continued to negotiate the terms of the merger agreement.  On April 12, 1999, as
a result of the rising price per share of ITC/\DeltaCom's common stock, the
price per share of ITC/\DeltaCom common stock closed outside the range in which
ITC/\DeltaCom's financial advisor would render a fairness opinion as to the
transaction. Mr. Walker telephoned Mr. Black to discuss an adjustment to the
purchase price calculation based on the increased price of the ITC/\DeltaCom
common stock. Mr. Black discussed the situation with several members of the
strategic committee and then proposed a revised purchase price calculation to
Mr. Walker the next day. Mr. Black's revised proposal brought the terms of the
transaction within the range required by ITC/\DeltaCom's financial advisor and,
at the same time, preserved the value of the transaction to the AvData
stockholders.

     On the morning of April 14, 1999, the strategic committee met to discuss
the new purchase price and the events giving rise to the need for an adjustment.
The strategic committee approved the revised purchase price and at that meeting
approved the merger agreement subject to the officers satisfactorily negotiating
the outstanding issues.  Later that day, the strategic committee recommended the
proposed merger transaction to the full AvData board of directors, and BHC made
a presentation to the board as to the fairness of the transaction, from a
financial point of view, to AvData and its stockholders.  The full board of
directors then unanimously approved substantially all of the terms of the merger
and the merger agreement and gave authority to Mr. Black to finalize the terms
of the merger and the merger agreement.

     On April 15, 1999, ITC/\DeltaCom, Interstate FiberNet and AvData executed
the merger agreement.  On June 3, 1999, the parties agreed to amend the merger
agreement to change certain provisions relating to the conversion of the stock
options and the treatment of those options.

                                      37                             THE MERGER
<PAGE>

   Recommendation of AvData's Board of Directors and Reasons for the Merger


     On the basis of a recommendation by a special committee consisting of
AvData's independent directors and other factors, AvData's board of directors
believes that the merger is fair to, and in the best interests of, AvData and
the AvData stockholders.  Accordingly, AvData's board of directors has
unanimously approved the merger agreement and unanimously recommends that AvData
stockholders vote for the adoption of the merger agreement and the approval of
the merger and the transactions contemplated by the merger agreement.

     In making its decision to approve the merger agreement and to recommend to
the holders of AvData common stock that they vote their shares in favor of
adoption of the merger agreement, AvData's board of directors consulted with its
financial advisor, BHC, and considered a number of factors, including, among
others, the following material considerations:

     .    the directors' familiarity with and review of the business, financial
          condition and result of operations of AvData, AvData's competitive
          position in its business, and other financial information and general
          economic conditions

     .    the advantages of a strategic combination with ITC/\DeltaCom, the
          provider of terrestrial facilities and one of AvData's sales channels,
          in enhancing AvData's network product and service offerings, growth
          prospects and competitive position

     .    the possible alternatives to the merger including, among others,
          continuing to operate AvData as an independent entity and the
          associated risks

     .    the historical valuations of AvData common stock relative to the value
          represented by the consideration to be received in the merger

     .    the anticipated costs and disruption associated with pursuing other
          strategic alternatives

     .    the directors' belief that the consideration payable in the merger
          represented the highest value per share that could be negotiated with
          ITC/\DeltaCom

     .    the timing of the transaction and premiums currently reported to be
          obtained in comparable transactions

     .    that shares of ITC/\DeltaCom common stock are traded on The Nasdaq
          National Market while there is no established market for shares of
          AvData common stock

     .    the proposed structure of the transaction, including its tax-free
          nature

     .    the terms and conditions of the merger agreement

     .    the financial condition of ITC/\DeltaCom

     .    the positive effect of the transaction on AvData's existing customer
          base due to the continuation of existing satellite services and the
          expansion of telecommunications services AvData will be able to offer
          through ITC/\DeltaCom following the transaction

     .    the continued employment of substantially all AvData employees
          following the transaction

     .    the directors' belief that the similarities in the corporate cultures
          and operating philosophies of AvData and ITC/\DeltaCom will facilitate
          the assimilation of AvData into

                                      38                              THE MERGER
<PAGE>

          ITC/\DeltaCom with the least amount of disruption to AvData's current
          operations and business strategies

     .    the oral opinion of BHC (subsequently confirmed by delivery of a
          written opinion dated April 15, 1999) to the effect that as of such
          date and based on and subject to certain matters stated therein, the
          merger consideration was fair, from a financial point of view, to
          AvData and its stockholders

     AvData's board of directors also recognized that holders of AvData common
stock will be entitled to receive shares of ITC/\DeltaCom common stock in the
merger, and that this would allow such holders the opportunity to participate in
the benefits, if any, of increases in the value of ITC/\DeltaCom's business and
properties following the merger.  Accordingly, AvData's board of directors gave
consideration to ITC/\DeltaCom's future prospects, as well as its historical
results of operations.

     AvData's board of directors did not assign relative weights to the
foregoing factors or determine that any factor was of specific importance
relative to any other factor.  Rather, AvData's board of directors viewed its
position and recommendation as being based on the totality of the information
presented to it and considered by it.


   Opinion of AvData's Financial Advisor


     AvData retained BHC on March 26, 1999, to act as its financial advisor with
respect to a sale of AvData.  On April 14, 1999, BHC delivered its oral opinion
to AvData's board of directors that, as of such date and based upon and subject
to certain matters discussed with the board, the consideration being offered by
ITC/\DeltaCom, including the potential right to receive earn-out shares as
described in "Terms of the Merger Agreement and Related Transactions--Conversion
of AvData Common Stock" and "--Conversion of AvData Stock Options," in exchange
for all of the outstanding shares of AvData common stock is fair from a
financial point of view to the holders of AvData common stock.  This opinion was
confirmed in writing on April 15, 1999.

     The full text of BHC's written opinion, dated April 15, 1999, is attached
hereto as Exhibit C and sets forth certain important qualifications, assumptions
made, matters considered, areas of reliance on others, and limitations on the
review undertaken in connection with such opinion.  The BHC opinion was directed
to the AvData board for its consideration in connection with the proposed merger
and is not a recommendation to any holder of AvData common stock as to whether
the merger is in such holder's best interests or as to whether any such holder
should vote for or against the merger.  The summary description of the BHC
opinion set forth below is qualified in its entirety by the full text of such
opinion attached hereto as Exhibit C, and is incorporated herein by reference
and should be read carefully and in its entirety in connection with this proxy
statement and prospectus.

     In arriving at its opinion, BHC among other things

     .    reviewed the financial terms of the merger as set forth in the merger
          agreement;

     .    reviewed certain historical business, financial and other information
          regarding AvData and ITC/\DeltaCom that was publicly available or
          furnished by AvData's or ITC/\DeltaCom's management;

     .    reviewed certain financial forecasts and other data provided by
          members of AvData's or ITC/\DeltaCom's management relating to their
          respective businesses;

                                      39                              THE MERGER
<PAGE>

     .    conducted discussions with members of AvData's and ITC/\DeltaCom's
          management with respect to their respective businesses, financial and
          other information, including their respective business prospects and
          financial forecasts;

     .    conducted discussions with members of AvData's management with respect
          to various strategic and operating benefits anticipated from the
          merger;

     .    reviewed certain financial terms of the merger in relation to the
          current and historical market prices and trading volumes of
          ITC/\DeltaCom common stock;

     .    compared the financial position and operating results of AvData with
          those of publicly traded companies BHC deemed relevant;

     .    compared the financial terms of the merger with certain financial
          terms of other similar transactions BHC deemed relevant; and

     .    conducted such other financial studies, analyses and investigations as
          BHC deemed appropriate.

     In connection with its review, BHC relied upon the accuracy and
completeness of the foregoing financial and other information, and did not
assume any responsibility for any independent verification of such information.
AvData provided BHC with financial forecasts for the period from 1999 to 2003.
BHC assumed that these projections had been reasonably prepared on bases
reflecting the best available estimates and judgments of AvData's management as
to the future financial performance of AvData and that such projections provided
a reasonable basis upon which BHC could form its opinion.  BHC did not assume
responsibility for making an independent evaluation, appraisal or physical
inspection of any of the assets or liabilities (contingent or otherwise) of
AvData or ITC/\DeltaCom, nor was BHC furnished with any such appraisals.  AvData
imposed no limitations on BHC with respect to the investigations made or
procedures followed by BHC.

     BHC's opinion was based on economic, monetary, market and other conditions
as in effect on, and the information made available to BHC as of, the date of
the opinion.  Accordingly, although subsequent developments may affect its
opinion, BHC did not assume and does not have any obligation to update, revise
or reaffirm its opinion.  BHC assumed that the merger will be consummated in
accordance with the terms described in the merger agreement and without any
waiver of any material terms or conditions.  With the AvData board's permission,
BHC further assumed that, on the closing date of the merger, the price per share
of ITC/\DeltaCom common stock will not be less than $11.50.  BHC's opinion does
not address the relative merits of the merger and the other business strategies
considered by AvData's board, nor does it address the board's decision to
proceed with the merger.  The merger agreement is filed with this proxy
statement and prospectus as Exhibit A and the terms in the merger agreement and
the conditions to AvData's obligations thereunder should be reviewed and
understood by holders of AvData common stock in connection with their
consideration of the merger.

     Set forth below is a brief summary of selected analyses presented by BHC to
the AvData board on April 14, 1999 in connection with BHC's opinion.


Comparable Public Company Analysis.

     Using publicly available information and information provided by AvData,
BHC compared the historical financial and operating performance of AvData with
the corresponding performance of a group of publicly-traded network services
companies that BHC deemed to be similar to AvData.  These comparable companies
were 4Front Technologies, Inc., Gilat Communications Ltd., International Network
Services, Internoc Holdings NV, Norstan, Inc., Sykes Enterprises, and

                                      40                              THE MERGER
<PAGE>

Techforce Corp. In comparing AvData's financial performance to that of these
comparable companies, BHC made the following observations, among others: (1)
AvData had a latest twelve months' ("LTM") gross profit margin ("Gross Margin")
of 37.7%, compared to the median LTM Gross Margin of 38.9% for the comparable
companies, (2) AvData had a LTM earnings (loss) before interest, taxes,
depreciation and amortization ("EBITDA") margin of 8.6%, compared to a median
LTM EBITDA margin of 13.0% for the comparable companies, and (3) AvData had a
LTM earnings (loss) before interest and taxes ("EBIT") margin of 5.0%, compared
to a median LTM EBIT margin of 9.3% for the comparable companies.

     In order to arrive at an implied valuation for AvData, BHC calculated the
Adjusted Market Value, defined as aggregate equity value plus debt less cash and
cash equivalents, of the comparable companies as a multiple of (1) LTM sales,
(2) LTM EBITDA, (3) LTM EBIT, and (4) forward 1999 sales.  An analysis of the
multiples of Adjusted Market Value to sales yielded a range of multiples from
0.5x to 7.4x, with a median multiple of 1.3x for the comparable companies.  An
analysis of the multiples of Adjusted Market Value to EBITDA yielded a range of
multiples from 5.7x to 31.7x, with a median multiple of 13.8x for the comparable
companies. An analysis of the multiples of Adjusted Market Value to EBIT yielded
a range of multiples from 9.6x to 82.7x, with a median multiple of 21.1x for the
comparable companies.  An analysis of the multiples of Adjusted Market Value to
forward 1999 sales yielded a range of multiples from 0.4x to 4.9x, with a median
multiple of 1.3x for the comparable companies.  BHC applied the median LTM
sales, EBITDA, EBIT and forward 1999 sales multiples for the comparable
companies to the corresponding historical results of AvData and applied a 20%
discount for size and liquidity relative to the comparable companies to
calculate the implied equity value of AvData.  This analysis indicated an equity
value of AvData of approximately $27.0 million.


Comparable Acquisitions Analysis.

     Using publicly available information, BHC reviewed selected recent merger
and acquisition transactions in the network services industry.  These
transactions include:  InaCom Corp.'s acquisition of Vanstar Corp., Qwest
Communications International, Inc.'s acquisition of Icon CMT Corp., CompuCom
Systems Inc.'s acquisition of Dataflex Corp., CompuCom Systems Inc.'s
acquisition of Computer Integration Corp., Xerox Corp.'s acquisition of
XLConnect Solutions, Inc., Xerox Corp.'s acquisition of Intelligent Electronics,
Inc., Wang Laboratories, Inc.'s acquisition of Ing. C. Olivetti & Co. S.p.A.-
Olsy Unit, Sprint Corp.'s acquisition of Paranet, Inc., and Vanstar Corp.'s
acquisition of Sysorex Information Systems, Inc.  BHC compared the Adjusted
Market Value of the acquired companies as implied by the consideration paid in
each such transaction to the corresponding LTM sales, EBITDA and EBIT for the
acquired companies.  This analysis indicated that Adjusted Market Value as a
multiple of (1) LTM sales ranged from 0.1x to 5.7x with a median of 0.3x, (2)
LTM EBITDA ranged from 8.7x to 39.8x with a median of 10.5x, and (3) LTM EBIT
ranged from 12.1x to 42.2x, with a median of 24.5x.  BHC applied the median LTM
sales and EBITDA multiples for the comparable acquisitions to the corresponding
historical results of AvData and applied a 20% discount for size relative to the
comparable acquisitions, yielding an equity value of AvData of approximately
$14.6 million.


Dilution Analysis.

     BHC performed a dilution analysis based on AvData's LTM financial
information.  BHC assumed a 100% debt financed purchase of AvData common stock
at interest rates of 6.75% and 7.75%, with earnings taxed at 40% and no tax
deduction for goodwill to determine the maximum purchase price an acquiror could
pay in an all-cash for stock transaction with no earnings dilution at the time
of the acquisition.  This analysis indicated an equity value of AvData of
between $15.5 million and $16.9 million.

                                       41
<PAGE>

Discounted Cash Flow Analysis.

     BHC performed a discounted cash flow analysis to estimate the present value
of the projected unlevered free cash flows for AvData based on AvData's
projections.  BHC calculated the estimated future free cash flows that AvData
would produce for the fiscal years 1999 through 2003, as well as the estimated
terminal value of AvData at the end of the forecasting period.  The terminal
value was computed by multiplying AvData's estimated fiscal year 2003 EBITDA by
a range of multiples between 7.5x and 9.5x, chosen to reflect AvData's potential
acquisition multiple at the end of year 2003.  The projected free cash flows and
terminal values were discounted to present values using a range of discount
rates between 21.84% and 25.84%, chosen to reflect assumptions regarding
AvData's cost of capital.  This analysis indicated an equity value of AvData
between $24.4 million and $34.4 million.

     While the foregoing summary describes the analyses and examinations that
BHC deemed material in arriving at its opinion, it does not purport to be a
comprehensive description of all analyses and examinations actually conducted by
BHC.  The preparation of a fairness opinion is not necessarily susceptible to
partial analysis or summary description, and selecting portions of the analyses
and of the factors considered by BHC, without considering all analyses and
factors, would create an incomplete view of the process underlying the analyses
set forth in the presentation of BHC to AvData's board of directors on April 14,
1999.  In addition, BHC may have in its discretion given some analyses more or
less weight than other analyses, and may have deemed various assumptions more or
less probable than other assumptions.  Accordingly, the ranges of valuations
resulting from any particular analysis described above should not be taken to be
BHC's view of the actual value of AvData or AvData common stock.  To the
contrary, BHC expressed no opinion on the actual value of AvData or AvData
common stock, and its opinion that is addressed to AvData's board of directors
extends only to the belief expressed by BHC that, from a financial point of
view, the consideration that holders of AvData common stock will receive
pursuant to the merger is within the range of values that might fairly be
ascribed to AvData common stock as of the date of the opinion of BHC.

     In performing its analyses, BHC made numerous assumptions with respect to
industry performance, general business and economic conditions, and other
matters, many of which are beyond the control of AvData.  The analyses performed
by BHC are not necessarily indicative of actual values or actual future results,
which may be significantly more or less favorable than those suggested by such
analyses.  Such analyses were prepared solely as part of BHC's analysis for the
AvData board of directors of the fairness of the merger to the holders of AvData
common stock from a financial point of view, and were provided solely to the
board in connection with the board's consideration of the merger.  The analyses
do not purport to be appraisals or to reflect the prices at which a company
might actually be sold or the prices at which any securities may trade at any
time in the future.  BHC used in its analyses various projections of future
performance prepared by the management of AvData.  The projections are based on
numerous variables and assumptions which are inherently unpredictable and must
be considered not certain or accurate as projected.  Accordingly, actual results
could vary significantly from those set forth in such projections.

     As described above, the opinion of BHC and the presentation to AvData's
board of directors summarized above were among the many factors taken into
consideration by the board in making its determination to approve, and to
recommend that AvData's stockholders approve, the merger.  BHC does not,
however, make any recommendation to holders of AvData common stock (or to any
other person or entity) as to whether such stockholders should vote for or
against the merger.

     Pursuant to the engagement letter, AvData agreed to pay BHC an opinion fee
of $75,000 upon the delivery of the oral opinion to AvData's board of directors
that is described above.  The opinion fee was not conditioned on the outcome of
BHC's opinion or whether AvData or its board of directors deemed such opinion
favorable or unfavorable.  In addition, if the merger is effected on the terms
set forth in the merger agreement, the engagement letter provides for AvData to
pay BHC a transaction fee equal to $250,000, with the opinion fee credited
against the transaction fee.  AvData

                                       42
<PAGE>

will be obligated to pay the transaction fee only if the merger (or another
transaction) is consummated. Accordingly, the payment of a substantial majority
of BHC's total fee is subject to consummation of the merger. The engagement
letter also calls for AvData to reimburse BHC for its reasonable out-of-pocket
expenses and for AvData to indemnify BHC, its affiliates, and other respective
directors, agents, employees and controlling persons against certain
liabilities, including liabilities under the federal securities laws, relating
to or arising out of BHC's engagement. BHC and its affiliates may maintain
business relationships with AvData and its affiliates.

     BHC, a division of First Union Capital Markets Corp., is a nationally
recognized investment banking firm and an affiliate of First Union Corporation.
BHC and its affiliates, as part of their investment banking activities, are
regularly engaged in the valuation of businesses and their securities in
connection with merger transactions and other types of acquisitions, negotiated
underwritings, secondary distributions of listed and unlisted securities,
private placements and valuations for corporate and other purposes.  AvData
selected BHC as its financial advisor on the basis of BHC's experience and
expertise in transactions similar to the merger, and its reputation in the
telecommunications industry.  In the past BHC or its affiliates have performed
certain investment banking services for AvData and ITC/\DeltaCom and received
customary fees for such services.  In the ordinary course of business, BHC or
its affiliates may actively trade the debt and equity securities of
ITC/\DeltaCom for its or any such affiliate's own account or for the account of
customers and, accordingly, may hold a long or short position in such
securities.


   Interests of Avdata Directors and Management in the Merger


     Four directors of AvData are also directors of ITC/\DeltaCom: Donald W.
Burton, Campbell B. Lanier, III, William T. Parr and William H. Scott, III.
These directors directly owned an aggregate of 2.6% of the outstanding AvData
common stock as of May 15, 1999.  AvData's board of directors was aware of these
conflicts and considered them, among other matters, in selecting the members of
the strategic committee and later in approving the merger agreement and the
transactions contemplated thereby.

     James H. Black, Jr., the current Chairman and Chief Executive Officer of
AvData, is expected to become a director and senior vice president of
ITC/\DeltaCom after the merger. Mr. Black is also expected to become senior vice
president of Interstate FiberNet and ITC/\DeltaCom Communications, Inc., an
indirect subsidiary of ITC/\DeltaCom. Mr. Black will be employed by
ITC/\DeltaCom Communications, Inc. for a period of one year, during which time
his employment may only be terminated "for cause." Upon expiration of the
initial 12 months of employment, Mr. Black's employment will be "at will."

     Five of the six existing AvData officers are expected to become employees
of the surviving corporation.  Any of these officers, including Mr. Black, who
stays with the surviving corporation following the merger will be employed by
ITC/\DeltaCom Communications, Inc., at or slightly higher, but not more than 5%
higher, than his or her current annual salary.  ITC/\DeltaCom will award annual
performance bonuses in a manner substantially consistent with past ITC/\DeltaCom
policy and practice. In addition, each AvData officer who becomes an employee of
the surviving corporation will receive credit for past service with AvData with
respect to all standard employee policies and benefit plans provided by
ITC/\DeltaCom Communications, Inc. ITC/\DeltaCom will require each AvData
officer to successfully pass a post-offer, pre-employment drug screening test
and enter into the standard non-disclosure, non-solicitation and ownership of
intellectual property agreement with ITC/\DeltaCom, Inc. All AvData officers
employed by ITC/\DeltaCom Communications, Inc., other than Mr. Black, will be
employees "at will." All employees of ITC/\DeltaCom Communications, Inc., are
eligible for option grants for the purchase of ITC/\DeltaCom common stock,
subject to the approval of ITC/\DeltaCom's board of directors.

     Severance Agreements.  As of May 15, 1999, no officers or directors of
AvData have agreements that are affected by the merger, except Judith H.
Drobinski, Vice President-Human

                                       43
<PAGE>

Resources, Secretary and Treasurer. Ms. Drobinski's agreement specifies that if
she is not offered an equivalent position in the surviving organization based in
Atlanta, she will be paid a severance of six months salary, equal to $43,250.

   Certain Avdata Stockholders have Relationships with ITC/\Deltacom

     Eight of the nine directors of ITC/\DeltaCom are also directors of ITC
Holding Company, Inc., which owns approximately 21% of the outstanding stock of
AvData.  One director of ITC/\DeltaCom is also the managing general partner of
South Atlantic Venture Fund Limited Partnership, which owns approximately 18% of
the outstanding stock of AvData.  As of May 15, 1999, seven of the directors of
ITC/\DeltaCom own approximately 26% of the outstanding stock of AvData.  In
addition, there are significant stockholders of ITC Holding Company, Inc. who
are also ITC/\DeltaCom stockholders.


   Business Relationship


     ITC/\DeltaCom and AvData currently do business with one another.  Since
1996, AvData has purchased long distance service from ITC/\DeltaCom.  Since
1998, ITC/\DeltaCom has acted as a sales channel for AvData, whereby
ITC/\DeltaCom includes AvData's network operations and monitoring services as
part of the products and services that it sells to its customers.

   Accounting Treatment

     The parties to the merger agreement expect the merger to be accounted for
using the purchase method of accounting.  ITC/\DeltaCom will be deemed the
acquiror for financial reporting purposes. Under the purchase method of
accounting, the purchase price in the merger is allocated among AvData assets
acquired and AvData liabilities assumed to the extent of their fair market
value, with any excess purchase price being allocated to goodwill.

   Listing on The Nasdaq National Market

     ITC/\DeltaCom has agreed to cause the shares of ITC/\DeltaCom common stock
issued in the merger to be approved for listing on The Nasdaq National Market.

   Governmental And Regulatory Approvals

     Under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (the "HSR
Act"), the merger may not be consummated until notifications have been given and
certain information has been furnished to the Federal Trade Commission ("FTC")
and the Antitrust Division of the Department of Justice (the "Antitrust
Division") and specified waiting period requirements have been satisfied.
ITC/\DeltaCom and AvData have filed or are in the process of filing pre-merger
notification and report forms with the FTC and the Antitrust Division.

     At any time before or after the effective time of the merger, however, the
Antitrust Division, the FTC or a private person or entity could seek under
antitrust laws, among other things, to enjoin the merger or to cause
ITC/\DeltaCom to divest itself, in whole or in part, of the surviving
corporation of the merger or of certain businesses conducted by the surviving
corporation of the merger. There can be no assurance that a challenge to the
merger will not be made or that, if such a challenge is made, ITC/\DeltaCom will
prevail. The obligations of ITC/\DeltaCom and AvData to consummate the merger
are subject to the condition that the applicable waiting period under the HSR
Act will have expired. See "Terms of the Merger Agreement and Related
Transactions--Conditions to Consummation of the Merger."

                                       44
<PAGE>

     In connection with the merger, AvData and/or ITC/\DeltaCom will be required
to submit regulatory notices and may be required to take further actions before
one or more federal or state regulatory agencies, including the FCC.  In some
instances, these regulatory notices and/or actions are required to be filed or
taken in advance of the effective time of the merger.  In addition, while not
required, ITC/\DeltaCom intends to provide courtesy notices prior to the
effective time of the merger to a number of government entities that have issued
licenses, certifications and similar telecommunications regulatory approvals to
ITC/\DeltaCom and its subsidiaries.  ITC/\DeltaCom and AvData believe that any
material regulatory approvals will be obtained in the normal course; however,
there can be no assurance that all such approvals will be obtained by the
effective time of the merger.  ITC/\DeltaCom and AvData are aware of no other
governmental or regulatory approvals required for consummation of the merger,
other than compliance with applicable federal and state communications and
securities laws.


   Federal Income Tax Consequences

     The following discussion is a summary of the material United States federal
income tax consequences of the merger to a stockholder of AvData holding shares
of AvData common stock as a capital asset within the meaning of Section 1221 of
the United States Internal Revenue Code of 1986, as amended (the "Code"), at the
effective time of the merger.

     This discussion does not address all aspects of federal taxation that may
be relevant to particular stockholders of AvData in light of their personal
circumstances or to stockholders of AvData subject to special treatment under
the Code, including, without limitation, banks, tax-exempt organizations,
insurance companies, dealers in securities or foreign currencies, stockholders
who received their AvData common stock through the exercise of employee stock
options or otherwise as compensation, stockholders who are not U.S. persons and
stockholders who hold AvData common stock as part of a hedge, straddle or
conversion transaction.  In addition, the discussion does not address any state,
local or foreign tax consequences of the merger.  Finally, the tax consequences
to holders of stock options or restricted stock are not discussed.

     The discussion is based on the Code, the United States Department of
Treasury regulations and administrative rulings and court decisions as of the
date of this prospectus and proxy statement, all of which are subject to change,
possibly with retroactive effects, and which are subject to differing
interpretations.  No ruling has been or will be sought from the IRS concerning
the tax consequences of the merger.  AvData stockholders are urged to consult
their tax advisors regarding the tax consequences of the merger to them,
including the effects of United States federal, state, local, foreign and other
tax laws.

     Tax Consequences of the Merger.  In accordance with Hogan & Hartson
L.L.P.'s tax opinion regarding the treatment of the merger as a reorganization
within the meaning of Section 368(a) of the Code, subject to the assumptions,
limitations, qualifications and other considerations described below under "--
Federal Income Tax Consequences--Considerations with Respect to Opinions," in
the opinion of Hogan & Hartson L.L.P.:

          (1)  no gain or loss will be recognized by an AvData stockholder as a
     result of the receipt solely of shares of ITC/\DeltaCom common stock in
     exchange for such stockholder's AvData common stock, except to the extent
     of any cash received in lieu of fractional shares and except that a portion
     of any earn-out shares received by an AvData stockholder will be treated as
     interest income;

          (2)  an AvData stockholder who receives cash in lieu of a fractional
     share of ITC/\DeltaCom common stock will be treated as if such stockholder
     received such fractional share and then sold such share back to
     ITC/\DeltaCom.  Such stockholder will recognize gain or loss on the sale of
     the fractional share equal to the difference

                                       45
<PAGE>

     between (a) the amount of cash received for such fractional share and (b)
     the stockholder's tax basis in such fractional share;

          (3)  an AvData stockholder's tax basis in the ITC/\DeltaCom common
     stock received in the merger (other than the portion of the earn-out shares
     treated as interest income) will be equal to such stockholder's aggregate
     tax basis in the AvData common stock immediately prior to the merger,
     reduced by the amount of basis allocable to the fractional share (as
     described in paragraph (2) above);

          (4)  an AvData stockholder's holding period for ITC/\DeltaCom common
     stock received in accordance with the merger (other than the portion of the
     earn-out shares treated as interest income) will include the holding period
     of the AvData common stock for which it was exchanged, assuming such AvData
     common stock was held as a capital asset on the effective date of the
     merger; and

          (5)  where cash is received by a dissenting AvData stockholder, such
     cash payment will be treated by that stockholder as a distribution and
     redemption of his or her AvData common stock under the provisions and
     limitations of Section 302 of the Code.


     Considerations with Respect to Opinions.  The tax opinion of Hogan &
Hartson L.L.P. and the foregoing summary of the U.S. federal income tax
consequences of the merger are and will be subject to assumptions, limitations
and qualifications and are based on current law and, among other things,
representations of AvData and ITC/\DeltaCom, including representations made by
the respective managements of AvData and ITC/\DeltaCom.  You should refer to the
full text of Hogan & Hartson L.L.P.'s tax opinion, a copy of which has been
filed as an exhibit to the registration statement of which this prospectus and
proxy statement forms a part, for a complete description of the assumptions made
and matters considered in connection with such tax opinion.  Opinions of counsel
are not binding on the IRS and do not preclude the IRS from adopting a contrary
position.  In addition, if any of such representations or assumptions are
inconsistent with the actual facts, the U.S. federal income tax consequences of
the merger could be adversely affected.

     Accordingly, you are strongly urged to consult with your tax advisors with
respect to the particular United States federal, state, local or foreign income
tax or other tax consequences of the merger to you.


   Restrictions on Resales by Affiliates

   ITC/\DeltaCom is registering the shares of its common stock to be issued in
the merger under the Securities Act of 1933. The shares will be freely
transferable under the Securities Act, except for shares received by AvData
stockholders who are deemed to be affiliates of AvData before the merger or
affiliates of ITC/\DeltaCom. These affiliates may only resell their shares under
an effective registration statement under the Securities Act covering the
shares, in compliance with Rules 144 and 145 of the Securities Act or under
another exemption from the Securities Act's registration requirements. This
prospectus and proxy statement does not cover any resales of ITC/\DeltaCom's
common stock by ITC/\DeltaCom or AvData affiliates. Affiliates will generally
include individuals or entities who control, are controlled by or are under
common control with AvData or ITC/\DeltaCom, and may include officers or
directors, as well as principal stockholders of AvData or ITC/\DeltaCom.

                                       46
<PAGE>

   Appraisal Rights of Dissenting Stockholders

     If you are an AvData stockholder who does not vote in favor of the merger
agreement and who properly demands appraisal of your shares of AvData common
stock, you will be entitled to appraisal rights in connection with the merger
under Section 262 of the Delaware General Corporation Law.

     The following discussion only applies to AvData stockholders who wish to
dissent from the merger.  Only a holder of record of AvData shares may exercise
appraisal rights.

     The following discussion is not a complete statement of the law pertaining
to appraisal rights under the Delaware General Corporation Law and is qualified
in its entirety by the full text of Section 262 which is attached as Appendix B
to this prospectus and proxy statement.  All references in Section 262 and in
this summary to a stockholder are to the record holder of the shares as to which
appraisal rights are asserted.  A person having a beneficial interest in shares
held of record in the name of another person, such as a broker or nominee, must
act promptly to cause the record holder to follow the steps summarized below in
a proper and timely manner to perfect appraisal rights.

     Under the Delaware General Corporation Law, if you follow the procedures
set forth in Section 262, you will be entitled to have your AvData shares
appraised by the Delaware Court of Chancery and to receive payment of the fair
value of your shares, exclusive of any element of value arising from the
accomplishment or expectation of the merger, together with a fair rate of
interest, as determined by the Court.

     Under Section 262, where a merger is to be submitted for approval at a
meeting of stockholders, as in the case of the special meeting, the corporation,
not less than 20 days prior to the meeting, must notify each of its stockholders
entitled to appraisal rights that appraisal rights are available and include in
the notice a copy of Section 262.  This prospectus and proxy statement will
constitute such notice to the stockholders, and the applicable statutory
provisions are attached as Appendix B to this prospectus and proxy statement.
If you wish to exercise appraisal rights or to preserve your right to do so, you
should review the following discussion and Appendix B carefully.  If you fail to
timely and properly comply with the procedures specified, you will lose your
appraisal rights.

     If you wish to exercise appraisal rights, you must:

          (1)  deliver to AvData, before the vote on the merger at the special
               meeting, a written demand for appraisal

          (2)  not vote in favor of the merger

          (3)  continuously hold of record your shares from the date of
               delivering a demand for appraisal through the effective time of
               the merger

     To not vote in favor of the merger, you can either (a) vote "no" in person
or by proxy, (b) fail to vote or (c) abstain from voting.  However, if you vote
in favor of the merger agreement, by proxy or in person, or return a signed
proxy that does not contain voting instructions and do not revoke it, you will
waive your right of appraisal and nullify any previously filed written demand
for appraisal.  A vote against the merger, in person or by proxy, will not in
and of itself constitute a written demand for appraisal satisfying the
requirements of Section 262.  If you fail to comply with any of these conditions
and the merger becomes effective, you will lose your appraisal rights and
receive instead the merger consideration you are entitled to in accordance with
the merger agreement.

     Only a holder of record of AvData shares may assert appraisal rights for
the shares registered in his name.  A demand for appraisal should be executed by
or on behalf of the holder of

                                       47
<PAGE>

record, fully and correctly, as the holder of record's name appears on his stock
certificates. It must also state that the holder of record intends to demand
appraisal of his shares in connection with the merger. If the shares are owned
of record in a fiduciary capacity, such as by a trustee, guardian or custodian,
execution of the demand should be made in that capacity. If the shares are owned
of record by more than one person, as in a joint tenancy and tenancy in common,
the demand should be executed by or on behalf of all joint owners. An authorized
agent, including two or more joint owners, may execute a demand for appraisal on
behalf of a holder of record. However, the agent must identify the record owner
or owners and expressly disclose the fact that, in executing the demand, the
agent is agent for such owner or owners.

     A record holder such as a broker who holds shares as nominee for several
beneficial owners may exercise appraisal rights with respect to the shares held
for one or more beneficial owners without exercising appraisal rights with
respect to the shares held for other beneficial owners.  If you hold your shares
in brokerage accounts or other nominee forms and wish to exercise appraisal
rights, you should consult your broker to determine the appropriate procedures
for making a demand for appraisal.

     All written demands for appraisal under Section 262 should be sent or
delivered to AvData Systems, Inc., 55 Marietta Street, 18th Floor, Atlanta,
Georgia 30303, Attention: Corporate Secretary.

     Within 10 days after the effective time of the merger, the surviving
corporation of the merger must notify each holder of shares who has complied
with Section 262 and has not voted in favor of or consented to the merger of the
date that the merger has become effective.  At any time within 60 days after the
effective time of the merger, you have the right to withdraw your demand for
appraisal and to accept the consideration offered in the merger.  Within 120
days after the effective time of the merger, but not after that time, the
surviving corporation of the merger or any holder of shares who is entitled to
appraisal rights may file a petition in the Delaware Court of Chancery demanding
a determination of the fair value of the dissenting shares.  The surviving
corporation of the merger is under no obligation to file this petition and
ITC/\DeltaCom has no present intention to cause the surviving corporation of the
merger to do so.  Accordingly, it is the obligation of the holders of shares to
initiate all necessary action to perfect appraisal rights within the time
prescribed in Section 262.

     Within 120 days after the effective time of the merger, if you have
complied with the requirements for exercise of appraisal rights, you will be
entitled, upon written request, to receive from the surviving corporation of the
merger a statement setting forth the aggregate number of shares not voted in
favor of the merger as to which demands for appraisal have been received and the
aggregate number of holders of those shares.  The surviving corporation of the
merger must mail this statement to you within 10 days after it receives a
written request from you or within 10 days after the expiration of the period
for delivery of demands for appraisal, whichever is later.

     If a petition for an appraisal is timely filed by a holder of shares and a
copy is served upon the surviving corporation of the merger, the surviving
corporation of the merger will then be obligated within 20 days to file with the
Delaware Register in Chancery a duly verified list containing the names and
addresses of all holders of shares who have demanded an appraisal of their
shares and with whom agreements as to the value of their shares have not been
reached.  After notice to these stockholders as required by the Court, the
Delaware Court of Chancery may conduct a hearing on this petition to determine
those holders of shares who have complied with Section 262 and who have become
entitled to appraisal rights.  The Delaware Court of Chancery may require the
holders of shares who demanded appraisal to submit their stock certificates to
the Register in Chancery for notation of the pendency of the appraisal
proceeding.  If you fail to comply with this direction, the Court of Chancery
may dismiss the proceedings as to you.

     After determining the holders of shares entitled to appraisal, the Delaware
Court of Chancery will appraise the fair value of their shares, exclusive of any
element of value arising from

                                       48
<PAGE>

the accomplishment or expectation of the merger, together with a fair rate of
interest, if any, to be paid upon the amount determined to be the fair value.
You should be aware that the fair value of your shares as determined by Section
262 could be more than, the same as or less than the consideration you would
receive in the merger if you did not seek appraisal of your shares.

     Section 262 provides that fair value is to be "exclusive of any element of
value arising from the accomplishment or expectation of the merger." The
Delaware Supreme Court has stated, in Cede & Co. v. Technicolor, Inc., 684 A.2d
289, 299 (Del. 1996), that this "narrow exclusion does not encompass known
elements of value, including those which exist on the date of the merger because
of a majority acquiror's interim acquisition in a two-step cash-out
transaction."  In Weinberger v. Uop, Inc., 457 A.2d 701 (Del. 1983), the
Delaware Supreme Court held that "elements of future value, including the nature
of the enterprise, which are known or susceptible of proof as of the date of the
merger and not the product of speculation, may be considered."  The Delaware
Supreme Court has stated that "proof of value by any techniques or methods which
are generally considered acceptable in the financial community and otherwise
admissible in court" should be considered in the appraisal proceedings.

     In addition, Delaware courts have decided that the statutory appraisal
remedy, depending on factual circumstances, may or may not be a dissenter's
exclusive remedy.  The Court of Chancery will also determine the amount of
interest, if any, to be paid upon the amounts to be received by persons whose
shares have been appraised.  The costs of the action may be determined by the
Court and taxed upon the parties as the Court deems equitable.  Upon application
by a stockholder, the Court may also order that all or a portion of the expenses
incurred by any stockholder in connection with an appraisal, including, without
limitation, reasonable attorneys' fees and the fees and expenses of experts
utilized in the appraisal proceeding, be charged pro rata against the value of
all the shares entitled to be appraised.

     If you have duly demanded an appraisal in compliance with Section 262, you
will not, after the effective time of the merger, be entitled to vote your
shares for any purpose or be entitled to the payment of dividends or other
distributions on those shares, except dividends or other distributions payable
to holders of record of shares as of a date prior to the effective time of the
merger.

     If you demand appraisal of your shares under Section 262 but fail to
perfect, or effectively withdraw or lose, your right to appraisal, your shares
will be converted into the right to receive the merger consideration you are
entitled to under the merger agreement, without interest.  You will fail to
perfect, or effectively lose or withdraw, your right to appraisal if no petition
for appraisal is filed within 120 days after the effective time of the merger,
or if you deliver to AvData or the surviving corporation of the merger a written
withdrawal of your demand for appraisal and an acceptance of the merger.
However, any attempt to withdraw made more than 60 days after the effective time
of the merger will require the written approval of the surviving corporation of
the merger and, once a petition for appraisal is filed, the appraisal proceeding
may not be dismissed as to any holder absent court approval.  It is not
necessary that each holder of shares properly demanding appraisal file a
petition for appraisal in the Delaware Court of Chancery.  Rather, a single
valid petition suffices for the petitioning and non-petitioning holders of
shares who have properly demanded appraisal.

     If you fail to follow the steps required by SECTION 262 of the Delaware
General Corporation Law for perfecting appraisal rights, you may lose these
rights. In that case, you will receive the merger consideration you are entitled
to in accordance with the merger agreement.

                                       49
<PAGE>

TERMS OF THE MERGER AGREEMENT AND RELATED TRANSACTIONS

     The following summary of the material terms and provisions of the merger
agreement is qualified in its entirety by reference to the merger agreement.
The merger agreement is attached as Appendix A to this prospectus and proxy
statement and is considered a part of this document.

   General

     The merger agreement provides that at the effective time of the merger
AvData will be merged with and into Interstate FiberNet, a wholly-owned
subsidiary of ITC/\DeltaCom, with Interstate FiberNet being the surviving
corporation of the merger.  A special committee consisting of AvData's
independent directors unanimously approved the merger agreement and the merger,
and recommended the merger agreement and the merger to the full board of
directors of AvData.  AvData's board of directors unanimously approved the
merger agreement and the merger.  At the effective time of the merger, each
AvData stockholder will receive, in exchange for his or her shares of AvData
common stock, shares of ITC/\DeltaCom common stock plus the potential right to
receive future shares of ITC/\DeltaCom common stock in accordance with formulas
specified in the merger agreement that are based upon certain revenues generated
by AvData or the surviving corporation during certain portions of 1999, all as
more fully described below.

     This section of the prospectus and proxy statement describes aspects of the
merger, including the material provisions of the merger agreement.

   Structure of the Merger

     Subject to the terms and conditions of the merger agreement and in
accordance with the Delaware General Corporation Law, at the effective time of
the merger, AvData will merge with and into Interstate FiberNet, which will
continue its corporate existence under the laws of the State of Delaware.  At
the effective time of the merger, the separate corporate existence of AvData
will terminate.  The certificate of incorporation of Interstate FiberNet will
become the certificate of incorporation of the surviving corporation of the
merger.  The bylaws of Interstate FiberNet will become the bylaws of the
surviving corporation of the merger.

   Management After the Merger

     As discussed in "The Merger--Interests of AvData Directors and Management
in the Merger," it is expected that after the merger, James H. Black, Jr. would
become a director and senior vice president of ITC/\DeltaCom as well as senior
vice president of Interstate FiberNet and ITC/\DeltaCom Communications, Inc., an
indirect subsidiary of ITC/\DeltaCom.  The following sets forth biographical
information concerning Mr. Black:

     James H. Black, Jr., 51, has been Chairman of the board of directors and
Chief Executive Officer of AvData since September, 1990.  In 1980, Mr. Black co-
founded VideoStar Connections, Inc., an Atlanta-based company specializing in
business television satellite networks.  He served as Executive Vice President
and a director of VideoStar from 1980 until 1989 when VideoStar  was acquired by
EDS.  He continued as Executive Vice President under EDS until May, 1990.  Mr.
Black has been an officer and director of Business Television International,
Inc. since its founding in May, 1990.  He also serves on the board of directors
of Air Quality Sciences, Inc., an indoor environmental testing and product
certification business; Norelli & Company, a strategic consulting firm; and Be
There Now, Inc., a 3-D, virtual image processing company.  Mr. Black is a
graduate of the Massachusetts Institute of Technology where he received
undergraduate and graduate degrees in engineering, and received an MBA from the
Harvard Business School.

                                       50
<PAGE>

   Conversion of AvData Common Stock


     Initial Shares.  At the effective time of the merger, each AvData
stockholder will receive, in exchange for his or her AvData common stock, the
right to receive a specified number of shares of ITC/\DeltaCom common stock,
which varies with the ITC/\DeltaCom stock price as described below.
ITC/\DeltaCom will pay cash in lieu of any fractional share.

          Escrow, Earn-out Shares Described below.  ITC/\DeltaCom will hold a
          ---------------------------------------
portion of these shares of its common stock in an escrow account as described in
"Escrow Shares" below.  Each AvData stockholder may also receive additional
ITC/\DeltaCom common stock in the future based upon specified types of revenues
generated by AvData (or, if after the merger, the surviving corporation) during
certain portions of 1999.  This portion of the merger consideration is described
under the caption "Earn-out Shares" below.

          Value of AvData Shares is Fixed if Price of ITC/\DeltaCom Common Stock
          ---------------------------------------------------------------------
is Within a Specified Range.  If the ITC/\DeltaCom stock price is between $25.00
- ---------------------------
and $31.39 for the five consecutive trading days immediately preceding the
effective date of the merger, then each issued and outstanding share of AvData
common stock (other than shares held in the treasury of AvData) will convert
into the right to receive approximately $0.91932 in the form of ITC/\DeltaCom
common stock (or cash in lieu of a fractional share) at the effective time of
the merger.  The value that AvData stockholders receive for their stock will not
fluctuate within this range since the number of shares of ITC/\DeltaCom common
stock will be adjusted proportionately as the ITC/\DeltaCom stock price changes.
References to ITC/\DeltaCom's stock price means the average daily price of
ITC/\DeltaCom common stock on The Nasdaq National Market (determined by
averaging the high and low price reported on such day) for the five consecutive
trading days immediately preceding the effective date of the merger.

          Value of AvData Shares Will Fluctuate if Price of ITC/\DeltaCom Common
          ----------------------------------------------------------------------
Stock is Outside of a Specified Range.  If the five-day trading average for
- -------------------------------------
ITC/\DeltaCom common stock is below $25.00, then it will be deemed to equal
$25.00 for purposes of the merger consideration calculation.  This means that
the value that AvData stockholders will receive for their stock will decline
with reductions in the value of ITC/\DeltaCom stock price below $25.00.

          Similarly, if the five-day trading average for ITC/\DeltaCom common
stock is greater than $31.39, then it will be deemed to equal $31.39 for
purposes of the merger consideration calculation.  This means that the value
that AvData stockholders will receive for their stock will rise with increases
in the value of ITC/\DeltaCom stock price above $31.39.

          As of May 26, 1999, which is the most recent practicable date prior to
the mailing of this proxy statement and prospectus, the ITC/\DeltaCom stock
price was $22.125.

                                       51
<PAGE>

          Explanatory Chart and Examples.  The following chart lists some of the
          ------------------------------
possible values of the consideration that AvData stockholders will receive in
the merger (not including the right to possibly receive additional shares of
ITC/\DeltaCom common stock in the future, as described in "Earn-out Shares"
below):

<TABLE>
<CAPTION>
If the Itc/\DeltaCom     then, for each share of AvData common stock you own,
stock price is           you will receive (in the form of ITC/\DeltaCom common
                         stock):
<S>                      <C>
       $15.00                                    $0.55428
       $16.00                                    $0.59109
       $17.00                                    $0.62791
       $18.00                                    $0.66472
       $19.00                                    $0.70154
       $20.00                                    $0.73835
       $21.00                                    $0.77484
       $22.00                                    $0.81119
       $23.00                                    $0.84753
       $24.00                                    $0.88344
       $25.00                                    $0.91932
       $26.00                                    $0.91932
       $27.00                                    $0.91932
       $28.00                                    $0.91932
       $29.00                                    $0.91932
       $30.00                                    $0.91932
       $31.00                                    $0.91932
       $32.00                                    $0.93681
       $33.00                                    $0.96539
       $34.00                                    $0.99396
       $35.00                                    $1.02254
       $36.00                                    $1.05111
       $37.00                                    $1.07969
       $38.00                                    $1.10826
       $39.00                                    $1.13683
       $40.00                                    $1.16541
</TABLE>




     Example 1:  If the ITC/\DeltaCom stock price is $28.00, then you will
receive approximately


                                       52
<PAGE>


$0.91932 in the form of ITC/\DeltaCom common stock for each share of AvData
common stock that you own. If you owned 1,000 shares of AvData common stock, you
would receive approximately $919.32 of ITC/\DeltaCom common stock which, at an
assumed value of $28.00 per share, would equal 32 shares of ITC/\DeltaCom common
stock plus $23.32 cash in lieu of a fractional share.

     Example 2:  If the ITC/\DeltaCom stock price is $22.00, then you will
receive approximately $0.81119  in the form of ITC/\DeltaCom common stock for
each share of AvData common stock that you own.  If you owned 1,000 shares of
AvData common stock, you would receive approximately $811.19 of ITC/\DeltaCom
common stock.  Thus, you would receive 36 shares of ITC/\DeltaCom common stock
plus $19.19 cash in lieu of a fractional share.

     Example 3:  If the ITC/\DeltaCom stock price is $35.00, then you will
receive approximately $1.02254 in the form of ITC/\DeltaCom common stock for
each share of AvData common stock that you own. If you owned 1,000 shares of
AvData common stock, you would receive approximately $1,022.54 of ITC/\DeltaCom
common stock. Thus, you would receive 29 shares of ITC/\DeltaCom common stock
plus $7.54 cash in lieu of a fractional share.

     Each share of AvData common stock held in the treasury of AvData will be
canceled at the effective time of the merger without the payment of any
consideration.  Each share of common stock of Interstate FiberNet issued and
outstanding immediately prior to the effective time of the merger will continue
to be one share of common stock of the surviving corporation of the merger, all
of which will continue to be held by ITC/\DeltaCom.

     Escrow Shares.  Upon conversion of AvData common stock into ITC/\DeltaCom
common stock at the time of the merger, ITC/\DeltaCom will withhold from each
AvData stockholder and retain in escrow approximately 17.5% of the total number
of shares of ITC/\DeltaCom common stock, as calculated above, that the
stockholder beneficially receives in the merger.  This stock will be placed in
escrow as security for the AvData stockholders' performance of their indemnity
obligations described in "-- Indemnification" below.  ITC/\DeltaCom will release
the escrow shares to AvData stockholders after the expiration of 24 months
following the effective time of the merger, subject to the retention of escrow
shares after the end of such 24 month period to cover any then-pending claims
for indemnification.

     Earn-out Shares.  AvData stockholders will also have a right to receive
additional ITC/\DeltaCom common stock in the future if AvData and, after the
merger, the surviving corporation, achieve specified performance goals during
1999.

         Earn-Out Based on Complex Formulas.  The performance goals for AvData
         ----------------------------------
and, after the merger, the surviving corporation, and the complex formulas for
determining the number of earn-out shares, can be found in section 2.8 of the
merger agreement in Appendix A.  The formulas divide AvData's revenue for the
relevant test periods into three categories.  The number of earn-out shares of
ITC/\DeltaCom common stock that the AvData stockholders will receive depends
heavily on increases in specified types of revenue in 1999.

         Key Factor is Growth in Recurring Terrestrial Revenue.  A large
         -----------------------------------------------------
percentage (93%) of the earn-out formula depends solely on increases, measured
in December 1999, in the recurring monthly terrestrial revenue of the surviving
corporation after the merger.  Recurring monthly terrestrial revenue has been a
relatively small component of AvData's overall revenues to date.  However, this
area of AvData's business combines the efforts of AvData and ITC/\DeltaCom, and
the earn-out formulas give credit to the surviving corporation for recurring
terrestrial revenue sales of ITC/\DeltaCom's products that were not contemplated
in AvData's original business plan discussed below.  The remaining 7% of the
total possible earn-out consideration depends on non-recurring revenue and VSAT
customer revenue, which historically have constituted the large majority of
AvData's revenues.

         AvData's management, prior to entering into merger negotiations with
ITC/\DeltaCom, established a business plan for 1999, including expected
recurring monthly

                                       53
<PAGE>

terrestrial revenue. The parties to the merger agreement believe that the
consideration that AvData stockholders will receive at the time of the merger
(including the escrow shares) reflects the value of AvData if AvData achieves
its expected plan, but not more. AvData stockholders therefore will only receive
some or all of the 93% portion of the earn-out shares that is based on recurring
terrestrial revenue if the surviving corporation in the merger exceeds this
expectation.

         Explanatory Chart and Examples.  The following chart lists some of the
         ------------------------------
possible numbers of earn-out shares of ITC/\DeltaCom common stock that an AvData
stockholder could receive.  We assume, for purposes of this chart, that AvData
stockholders receive the maximum possible earn-out consideration for non-
recurring revenues and VSAT revenues, which represents 7% of the total possible
earn-out consideration and which will occur if the 1999 targets for those types
of revenues are met or exceeded.  Because the non-recurring revenues and VSAT
revenue portions of the earn-out have only a small effect on the number of earn-
out shares of ITC/\DeltaCom common stock, the chart does not give levels of
achievement for those two types of revenue.


<TABLE>
<CAPTION>
ITC/\DeltACom        Percentage by which recurring    Number earn-out shares
common stock price   monthly terrestrial revenue in   of ITC/\DeltaCOM (for
                     December 1999 exceeds AvData     1,000 shares of Avdata)
                     management's plan
<S>                  <C>                              <C>
$15.00                           100%                         0.904339
                                 115%                         4.584808
                                 150%                         8.263332
                                 200%                        12.907778
$16.00                           100%                         0.904133
                                 115%                         4.583856
                                 150%                         8.261755
                                 200%                        12.895832
$17.00                           100%                         0.903951
                                 115%                         4.583015
                                 150%                         8.257900
                                 200%                        12.884779
$18.00                           100%                         0.903789
                                 115%                         4.582268
                                 150%                         8.250966
                                 200%                        12.866669
$19.00                           100%                         0.903645
                                 115%                         4.578758
                                 150%                         8.243930
                                 200%                        12.849673
$20.00                           100%                         0.903418
</TABLE>

                                       54
<PAGE>


<TABLE>
<CAPTION>
<S>                              <C>                         <C>
                                 115%                         4.575385
                                 150%                         8.233133
                                 200%                        12.834376
$21.00                           100%                         0.902757
                                 115%                         4.571004
                                 150%                         8.223364
                                 200%                        12.820536
$22.00                           100%                         0.902157
                                 115%                         4.565642
                                 150%                         8.214484
                                 200%                        12.807954
$23.00                           100%                         0.901368
                                 115%                         4.560745
                                 150%                         8.206375
                                 200%                        12.796467
$24.00                           100%                         0.900397
                                 115%                         4.556257
                                 150%                         8.198943
                                 200%                        12.785936
$25.00                           100%                         0.899503
                                 115%                         4.552128
                                 150%                         8.192105
                                 200%                        12.776249
$26.00                           100%                         0.864907
                                 115%                         4.377046
                                 150%                         7.877024
                                 200%                        12.284854
$27.00                           100%                         0.832874
                                 115%                         4.214933
                                 150%                         7.585282
                                 200%                        11.829860
$28.00                           100%                         0.803128
                                 115%                         4.064400
                                 150%                         7.314379
                                 200%                        11.407365
</TABLE>

                                       55
<PAGE>


<TABLE>
<S>                              <C>                         <C>
$29.00                           100%                         0.775434
                                 115%                         3.924248
                                 150%                         7.062159
                                 200%                        11.014007
$30.00                           100%                         0.749586
                                 115%                         3.793440
                                 150%                         6.826754
                                 200%                        10.646874
$31.39                           100%                         0.716448
                                 115%                         3.625737
                                 150%                         6.524953
                                 200%                        10.176191
$32.00                           100%                         0.716121
                                 115%                         3.624227
                                 150%                         6.522452
                                 200%                        10.172647
$33.00                           100%                         0.715614
                                 115%                         3.621881
                                 150%                         6.518566
                                 200%                        10.167142
$34.00                           100%                         0.715136
                                 115%                         3.619673
                                 150%                         6.514910
                                 200%                        10.161962
$35.00                           100%                         0.714685
                                 115%                         3.617591
                                 150%                         6.511462
                                 200%                        10.157077
$36.00                           100%                         0.714260
</TABLE>

                                       56
<PAGE>


<TABLE>
<S>                              <C>                         <C>
                                 115%                         3.615624
                                 150%                         6.508206
                                 200%                        10.152464
$37.00                           100%                         0.713858
                                 115%                         3.613764
                                 150%                         6.505126
                                 200%                        10.148100
$38.00                           100%                         0.713476
                                 115%                         3.612002
                                 150%                         6.502208
                                 200%                        10.143966
$39.00                           100%                         0.713115
                                 115%                         3.610330
                                 150%                         6.499439
                                 200%                        10.140043
$40.00                           100%                         0.714667
                                 115%                         3.618325
                                 150%                         6.514036
                                 200%                        10.163155
</TABLE>

     Example:  If the average ITC/\DeltaCom stock price is $28.00 at the time of
the merger, and the surviving corporation's recurring monthly terrestrial
revenue in December of 1999 is 150% of the amount in AvData management's plan,
then in exchange for 1,000 shares of AvData common stock, you will receive seven
earn-out shares of ITC/\DeltaCom common stock (which does not include the
ITC/\DeltaCom stock that you would also receive at the time of the merger or the
escrow shares).  In lieu of the remaining 0.314379 fractional share of
ITC/\DeltaCom, you will receive the value of that fractional share (assuming a
per share value of $28.00) in cash, which equals $8.80.


     Conversion of AvData Stock Options

     At the effective time of the merger, each outstanding AvData employee stock
option automatically converts into an option to purchase shares of ITC/\DeltaCom
common stock.  If, however, the AvData employee does not become an employee of
ITC/\DeltaCom or its subsidiaries at the effective time of the merger and has
not exercised the option before that time, the option will expire. The number of
shares of ITC/\DeltaCom common stock issuable under a converted option depends
on the same factors as conversion of AvData common stock into ITC/\DeltaCom
common stock in the merger, except that the ratio of ITC/\DeltaCom option shares
to AvData option shares (assuming an ITC/\DeltaCom common stock price of $25.00)
is 0.0289 to one rather than 0.0368 to one. The lower exchange ratio reflects an
adjustment for an "escrow" of a portion of the option which corresponds to the
escrowing of a portion of the shares of ITC/\DeltaCom common stock issued in the
merger and for the earn-out. As some or all of ITC/\DeltaCom common stock comes
out of escrow and as a portion or all of the earn-out is achieved, ITC/\DeltaCom
will issue additional options.

                                       57
<PAGE>


     The exercise price of each AvData stock option converted into an
ITC/\DeltaCom stock option will be adjusted by multiplying the exercise price by
a multiplier equal to approximately 0.97347 multiplied by the price of
ITC/\DeltaCom stock (measured in the same manner as described in "-- Conversion
of AvData Common Stock" above).  ITC/\DeltaCom derived this multiplier by
assuming a full release of ITC/\DeltaCom stock from escrow, a partial
achievement of the earn-out and a price of ITC/\DeltaCom stock in the range
between $25.00 and $31.39. This multiplier does not adjust over time (due to the
complexity involved).

     The option conversion does not affect the existing vesting schedule in
effect for each AvData stock option as of April 15, 1999.


   Exchange of Certificates


     ITC/\DeltaCom has agreed to deposit with a bank or trust company selected
by ITC/\DeltaCom, as exchange agent in the merger for the benefit of the holders
of issued and outstanding shares of AvData common stock, certificates
representing the shares of ITC/\DeltaCom common stock and cash in lieu of any
fractional shares, to be issued or paid under the merger agreement. At the
earliest practicable date prior to the effective time of the merger,
ITC/\DeltaCom will mail a letter of transmittal to each holder of AvData common
stock. The letter of transmittal will contain instructions with respect to the
surrender to the exchange agent of your certificates.

     You should not return your stock certificates with the enclosed proxy nor
should you forward them to the exchange agent unless and until you receive the
letter of transmittal, at which time you should forward them only in accordance
with the instructions specified therein.

     Until the certificates representing AvData common stock to be converted
into ITC/\DeltaCom common stock in the merger are surrendered for exchange at or
after the effective time of the merger, holders of such certificates will accrue
but will not be paid dividends or other distributions declared after the
effective time of the merger with respect to the ITC/\DeltaCom common stock into
which their AvData common stock has been converted.  When the holders of such
certificates have surrendered them, any unpaid dividends or other distributions
will be paid, without interest.  All stock certificates presented after the
effective time of the merger will be canceled and exchanged for the applicable
amount of cash and/or relevant certificate representing the applicable number of
shares of ITC/\DeltaCom common stock to be received pursuant to the merger.

     Any shares of ITC/\DeltaCom common stock and cash that remain undistributed
by the exchange agent 12 months after the effective time of the merger will be
delivered to ITC/\DeltaCom upon demand.  Certificates representing AvData common
stock must thereafter be surrendered for exchange to ITC/\DeltaCom.  None of
ITC/\DeltaCom, Interstate FiberNet, AvData, the surviving corporation of the
merger or the exchange agent will be liable for any shares of ITC/\DeltaCom
common stock, dividends or distributions on such stock, or cash delivered to a
public official under any abandoned property, escheat or similar laws.

     If a certificate representing AvData common stock has been lost, stolen or
destroyed, the exchange agent will issue the consideration properly payable in
accordance with the merger agreement upon the making of an affidavit of such
loss, theft or destruction by the claimant, and, if required by ITC/\DeltaCom,
the posting of a bond as indemnity against any claim that may be made later
against ITC/\DeltaCom, the surviving corporation of the merger or the exchange
agent with respect to such certificate.

     For a description of the ITC/\DeltaCom common stock and a description of
the differences between the rights of the holders of AvData common stock, on the
one hand, and holders of

                                       58
<PAGE>

ITC/\DeltaCom common stock, on the other, see "ITC/\DeltaCom Common Stock and
Comparison of Stockholder Rights."


   Effective Time



     The merger will occur as promptly as possible after the satisfaction or
waiver of all of the conditions precedent set forth in Article VIII of the
merger agreement.  On the day the merger occurs, ITC/\DeltaCom and AvData will
file a certificate of merger with the Secretary of State of the State of
Delaware.  The effective time of the merger will be the date and time of such
filing.  If the merger is not consummated by August 31, 1999 (unless extended by
mutual consent of the parties), the merger agreement may be terminated by either
ITC/\DeltaCom or AvData, unless the failure to consummate the merger by such
date is due to the failure of the party seeking to terminate the merger
agreement to fulfill any of its obligations thereunder. See "--Conditions to
Consummation of the Merger." AvData and ITC/\DeltaCom each anticipate that, if
the merger is approved at the special meeting of AvData's stockholders, the
merger will be consummated during the summer of 1999. However, the consummation
of the merger could be delayed if there is a delay in obtaining governmental
consents required prior to consummation of the transactions contemplated in the
merger agreement. There can be no assurances as to if or when such governmental
consents will be obtained or that the merger will be consummated.

   Representations and Warranties


     The merger agreement contains various representations of AvData,
ITC/\DeltaCom and Interstate FiberNet.

     Representations and Warranties of AvData.  The merger agreement contains
representations and warranties of AvData as to, among other things:

     .  the corporate organization and existence of AvData, including that it is
        duly organized, validly existing and in good standing with the corporate
        power and authority to own, operate and lease its assets and to carry on
        its business as currently conducted

     .  the certificate of incorporation and bylaws or other organizational
        documents of AvData

     .  the capitalization of AvData, including the number of shares of capital
        stock authorized, the number of shares and rights to acquire shares
        outstanding and the number of shares reserved for issuance

     .  the corporate power and authority of AvData to execute and deliver the
        merger agreement and related documents and to consummate the
        transactions contemplated thereby

     .  the compliance of the merger agreement and related documents with (1)
        AvData's certificate of incorporation and bylaws, (2) applicable laws,
        and (3) certain material agreements of AvData, including the absence of
        events of default or breach thereunder

     .  the required governmental and third-party consents

     .  the possession and validity of all required licenses, except as would
        not have a material adverse effect on AvData, and the timely filing of
        required regulatory reports

     .  AvData's financial statements, including that the information in such
        financial statements is in accordance with AvData's books and records, a
        fair presentation of the financial condition and results of operations
        of AvData and is in compliance with U.S. generally accepted accounting
        principles

     .  the absence of material undisclosed liabilities

                                       59
<PAGE>

     .  the collectability of accounts receivable of AvData

     .  the absence of certain changes in AvData's business since December 31,
        1998

     .  the title to and condition of material assets owned by AvData

     .  the validity of and absence of defaults under certain debt instruments,
        leases and other agreements of AvData

     .  the ownership and condition of the real property owned or leased by
        AvData

     .  the absence of intellectual property infringement or contests

     .  AvData's year 2000 risk management plans and condition and year 2000
        readiness of hardware and software

     .  compliance with environmental laws and the absence of environmental
        liabilities

     .  the absence of material claims, actions, suits, proceedings and certain
        judgments, decrees and injunctions

     .  complete and correct books and records

     .  the filing and accuracy of AvData's tax returns and the adequacy of
        AvData's reserves for taxes

     .  significant customers of AvData

     .  the absence of certain business practices of AvData

     .  compliance with laws relating to employees or the workplace, and the
        absence of material disputes with employees

     .  AvData's employee benefit plans and related matters, including that such
        plans have been operated and administered in accordance with applicable
        law

     .  the absence of certain potential conflicts of interests with employees,
        directors, officers and significant stockholders

     .  keep certain insurance in place

     .  the absence of brokers, except as identified in the merger agreement

     .  the accuracy of AvData's corporate minute books

     .  the absence of any action by AvData that would cause the merger to fail
        to qualify as a reorganization under Section 368(a) of the Internal
        Revenue Code of 1986

     .  the adoption by AvData's board of directors of a resolution approving
        the merger agreement and the merger and recommending adoption of the
        merger agreement and approval of the merger by the stockholders of
        AvData

     .  the vote required to approve the merger

     .  the exemption of the merger from Section 203 of the Delaware General
        Corporation Law

     .  the absence of material misstatements or omissions in the information
        furnished by AvData

     ITC/\DeltaCom and other indemnified persons may make a claim for
indemnification for breach of any of the foregoing representations and
warranties until the end of the twenty-four month period after the effective
time of the merger.  See "--Indemnification."  The merger agreement permits
AvData to update, correct or otherwise modify its representations up to the
effective time of the merger to reflect changes or corrections, but such update,
correction or modification will not cure a breach of the merger agreement.


                                       60
<PAGE>

     Representations and Warranties of ITC/\DeltaCom and Interstate FiberNet.
The merger agreement contains representations and warranties of ITC/\DeltaCom
and Interstate FiberNet as to, among other things

     .    the corporate organization and existence of ITC/\DeltaCom and
          Interstate FiberNet, including that each is duly organized, validly
          existing and in good standing with the corporate power and authority
          to own, operate and lease its properties and to carry on its business
          as currently conducted

     .    ITC/\DeltaCom's certificate of incorporation and bylaws and the
          certificate of incorporation and bylaws of Interstate FiberNet

     .    the capitalization of ITC/\DeltaCom, including the number of shares of
          capital stock authorized, the number of shares and rights to acquire
          shares outstanding and the number of shares reserved for issuance

     .    the corporate power and authority of ITC/\DeltaCom and Interstate
          FiberNet to execute and deliver the merger agreement and related
          documents and to consummate the transactions contemplated thereby

     .    the compliance of the merger agreement and related documents with (1)
          ITC/\DeltaCom's certificate of incorporation and bylaws and the
          certificate of incorporation and bylaws of Interstate FiberNet, (2)
          applicable laws, and (3) certain agreements of ITC/\DeltaCom and
          Interstate FiberNet, including the absence of events of default or
          acceleration thereunder

     .    the required governmental and third-party consents

     .    the absence of brokers utilized by ITC/\DeltaCom

     .    the absence of any action by ITC/\DeltaCom or Interstate FiberNet that
          would cause the merger to fail to qualify as a reorganization under
          Section 368(a) of the Internal Revenue Code of 1986

     .    the absence of material misstatements or omissions in certain
          information furnished by ITC/\DeltaCom

     The merger agreement permits ITC/\DeltaCom to update, correct or otherwise
modify its representations up to the effective time of the merger to reflect
changes or corrections so long as the failure to update, correct or modify such
representations does not constitute a breach of the merger agreement.


   Business of AvData Pending the Merger; Other Agreements


     Under the merger agreement, AvData has agreed to:  (1) conduct its business
in the ordinary course consistent with past practice, (2) preserve intact its
business organization, maintain its rights and contracts, use its commercially
reasonable efforts to retain the services of its principal officers and key
employees and maintain its relationship with its respective suppliers,
contractors, distributors, customers and others having business relationships
with it, (3) keep its assets in good repair and condition, ordinary wear and
tear excepted; and (4) keep in full force and effect insurance comparable in
amount and scope of coverage to that currently maintained.  In addition, AvData
has agreed that, except as expressly contemplated by the merger agreement or
specified in a schedule thereto, without ITC/\DeltaCom's prior consent, it will
not, among other things:

     .    increase in any manner the compensation or fringe benefits of, or pay
          any bonus to, any director, officer or employee

                                       61               TERMS OF THE TRANSACTION
<PAGE>

     .    grant any severance or termination pay (except for normal severance
          practices or existing agreements in effect on the date of the merger
          agreement) to, or enter into any severance agreement with, any
          director, officer or employee, or enter into any employment agreement
          with any director, officer or employee, except for severance
          arrangements entered into prior to April 15, 1999, pursuant to an
          employment agreement listed in the disclosure schedule to the merger
          agreement

     .    establish, adopt, enter into or amend any benefit plan or arrangement,
          except as may be required to comply with applicable law

     .    pay any benefit not provided for under any benefit plan or arrangement

     .    grant any awards under any bonus, incentive, performance or other
          compensation plan or arrangement or benefit plan or arrangement
          (including the grant of stock options, stock appreciation rights,
          stock-based or stock-related awards, performance units or restricted
          stock, or the removal of existing restrictions in any benefit plan or
          arrangement or agreement or awards made thereunder)

     .    take any action to fund or in any other way secure the payment of
          compensation or benefits under any agreement

     .    promote or fire any director, officer or employee

     .    declare, set aside or pay any dividend on, or make any other
          distribution in respect of, outstanding shares of capital stock other
          than capital stock repurchased from departing employees in the
          ordinary course of business

     .    redeem, purchase or otherwise acquire any shares of capital stock of
          AvData or any securities or obligations convertible into or
          exchangeable for any shares of capital stock of AvData, or any
          options, warrants or conversion or other rights to acquire any shares
          of capital stock of AvData or any such securities or obligations, or
          any other securities thereof, other than redemptions and purchases
          from departing employees in the ordinary course of business or stock
          acquired by AvData from current employees pursuant to historic AvData
          practice in connection with the exercise of such employees' stock
          options

     .    effect any reorganization or recapitalization

     .    split, combine or reclassify any of its capital stock or issue or
          authorize or propose the issuance of any other securities in respect
          of, in lieu of, or in substitution for, shares of its capital stock

     .    except upon the exercise of outstanding stock options in accordance
          with their terms, issue, deliver, award, grant or sell, or authorize
          the issuance, delivery, award, grant or sale (including the grant of
          any limitations in voting rights or other encumbrances) of, any shares
          of any class of AvData's capital stock, including shares held in
          treasury, any securities convertible into or exercisable or
          exchangeable for any such shares, or any rights, warrants or options
          to acquire any such shares, or amend or otherwise modify the terms of
          any such rights, warrants or options the effect of which will be to
          make such terms more favorable to the holders thereof

     .    acquire or agree to acquire, by merging or consolidating with, by
          purchasing an equity interest in or a portion of the assets of, or by
          any other manner, any business or any corporation, partnership,
          association or other business organization or division thereof, or
          otherwise acquire or agree to acquire any assets of any other person,
          other than the purchase of assets from suppliers or vendors in the
          ordinary course of business

                                       62               TERMS OF THE TRANSACTION
<PAGE>

     .    sell, lease, exchange, mortgage, pledge, transfer or otherwise subject
          to any encumbrance or dispose of, or agree to sell, lease, exchange,
          mortgage, pledge, transfer or otherwise subject to any encumbrance or
          dispose of, any of its assets, except for sales, dispositions or
          transfers in the ordinary course of business

     .    propose or adopt any amendments to its articles or certificate of
          incorporation, bylaws or other comparable charter or organizational
          documents

     .    make or rescind any express or deemed election relating to taxes,
          settle or compromise any claim, action, suit, litigation, proceeding,
          arbitration, investigation, audit or controversy relating to taxes
          which would reasonably be expected to have a material adverse effect
          on AvData, or change any of its methods of reporting income or
          deductions for federal income tax purposes from those employed in the
          preparation of the federal income tax returns for the taxable year
          ended December 31, 1997, except in either case as may be required by
          law, the IRS or GAAP

     .    make or agree to make any new capital expenditure or expenditures over
          $25,000 which are not included in AvData's 1999 capital budget

     .    (1) incur any indebtedness for borrowed money or guarantee any such
          indebtedness of another person, issue or sell any debt securities or
          warrants or other rights to acquire any debt securities of AvData,
          guarantee any debt securities of another person, enter into any "keep
          well" or other agreement to maintain any financial statement condition
          of another person, or enter into any agreement having the economic
          effect of any of the foregoing, except for borrowings incurred in the
          ordinary course of business, or (2) make any loans, advances or
          capital contributions to, or investments in, any other person other
          than travel and payroll advances to employees in the ordinary course
          of business

     .    pay, discharge, settle or satisfy any claims, liabilities or
          obligations other than the payment, discharge or satisfaction, in the
          ordinary course of business and in accordance with their terms, of
          liabilities reflected or reserved against in, or contemplated by,
          AvData's most recent financial statements or waive any material
          benefits of, or agree to modify in any material respect, any
          confidentiality, standstill or similar agreements to which AvData is a
          party

     .    waive, release or assign any rights or claims, or modify, amend or
          terminate any agreement to which AvData is a party

     .    make any change in any method of accounting or accounting practice or
          policy other than those required by GAAP or a governmental entity

     .    take any action or fail to take any action that would have a material
          adverse effect on AvData prior to or after the effective time of the
          merger or a material adverse effect on ITC/\DeltaCom after the
          effective time of the merger, or that would adversely affect the
          ability of AvData prior to the effective time of the merger, or
          ITC/\DeltaCom or any of its subsidiaries after the effective time of
          the merger, to obtain consents of third parties or approvals of
          governmental entities required to consummate the transactions
          contemplated in the merger agreement

     .    authorize, or commit or agree to do any of the foregoing

     AvData has also agreed:

     .    promptly to take all action necessary in accordance with the Delaware
          General Corporation Law and AvData's certificate of incorporation and
          bylaws to solicit from the

                                       63               TERMS OF THE TRANSACTION
<PAGE>

          stockholders of AvData proxies or consents to adopt the merger
          agreement and approve the merger

     .    to mail this prospectus and proxy statement to its stockholders
          promptly after the registration statement of which this prospectus and
          proxy statement forms a part becomes effective, and to comply with the
          proxy solicitation rules and regulations under the Securities Exchange
          Act of 1934 in connection with the solicitation of proxies from such
          persons

     .    to give ITC/\DeltaCom access to all of its properties, agreements,
          books, records and personnel

     .    to furnish ITC/\DeltaCom with monthly unaudited consolidated financial
          statements and other information concerning its business, operations,
          prospects, conditions, assets, liabilities and personnel

     .    to prepare and timely file all AvData tax returns, which returns must
          be materially accurate, pay all taxes with respect to its returns, pay
          or otherwise make adequate provision for all taxes payable by AvData
          for which no return is due before the date of the merger and promptly
          notify ITC/\DeltaCom of any action, proceeding, claim or audit against
          or with respect to AvData in respect of any taxes

     AvData and ITC/\DeltaCom have further agreed:

     .    to use their reasonable commercial efforts promptly to make all
          filings under applicable laws and to obtain all material
          authorizations, permits, consents and approvals of all third parties
          and governmental entities necessary or advisable to consummate the
          transactions contemplated by the merger agreement

     .    to use their reasonable best efforts to take all necessary, proper or
          appropriate actions to consummate the transactions contemplated by the
          merger agreement


   No Solicitation by AvData


     AvData has agreed not to initiate or solicit (including by way of
furnishing information or assistance), or take any other action to promote, any
inquiries or the making of any proposal that constitutes, or may reasonably be
expected to lead to, any "competing transaction," (as this term is defined
below) or enter into discussions or furnish any information or negotiate with
any person or otherwise cooperate in any way in furtherance of such inquiries or
to obtain a competing transaction, or agree to or endorse any competing
transaction, or authorize any of its directors, officers, employees, agents or
representatives to take any such action.  AvData has agreed:

     .    promptly to notify ITC/\DeltaCom if any inquiries or proposals that
          constitute, or may reasonably be expected to lead to, a competing
          transaction are received by AvData or any of its directors, officers,
          employees, agents, investment bankers, financial advisors, attorneys,
          accountants or other representatives

     .    promptly to inform ITC/\DeltaCom as to the material terms of such
          inquiry or proposal and, if in writing, promptly to deliver or cause
          to be delivered to ITC/\DeltaCom a copy of such inquiry or proposal

     .    to keep ITC/\DeltaCom informed, on a current basis, of the nature of
          any such inquiries and the status and terms of any such proposals.

                                       64               TERMS OF THE TRANSACTION
<PAGE>

     None of the above restrictions, however, shall prohibit the board of
directors of AvData from furnishing information to, or entering into discussions
or negotiations with, or agreeing to or endorsing any competing transaction
with, any person or entity that makes a bona fide proposal to acquire AvData
pursuant to a merger, consolidation, share exchange, business combination or
other similar transaction, if, and only to the extent that,

     .    the board of directors of AvData, after consultation with outside
          counsel, determines in good faith that such action is required for the
          board of directors of AvData to comply with its fiduciary duties to
          the AvData stockholders imposed by the Delaware General Corporation
          Law;

     .    prior to furnishing such information to, or entering into discussions
          or negotiations with, such person or entity, it provides written
          notice to ITC/\DeltaCom to the effect that AvData is furnishing
          information to, or entering into discussions or negotiations with,
          such person or entity;

     .    prior to furnishing such information to such person or entity, AvData
          receives from such person or entity an executed confidentiality
          agreement with terms no less favorable to AvData than those contained
          in the confidentiality agreement executed by ITC/\DeltaCom dated
          January 15, 1999; and

     .    AvData keeps ITC/\DeltaCom informed, on a current basis, of the status
          and content of any such discussions or negotiations.

     For purposes of the merger agreement, "competing transaction" means any of
the following involving AvData, other than the transactions contemplated by the
merger agreement:

     .    any merger, consolidation, share exchange, business combination, or
          other similar transaction.

     .    any sale, lease, exchange, mortgage, pledge, transfer or other
          disposition of 10% or more of the assets of AvData, taken as a whole,
          or issuance of 20% or more of the outstanding voting securities of
          AvData in a single transaction or series of transactions

     .    any tender offer or exchange offer for 20% or more of the outstanding
          shares of capital stock of AvData

     .    any solicitation of proxies in opposition to approval by the
          stockholders of AvData of the merger

     .    any agreement or public announcement by AvData or any other person of
          a proposal, plan or intention to do any of the foregoing.

   Indemnification



     If the merger agreement is approved, all AvData stockholders will be deemed
to have agreed severally to indemnify, defend and hold ITC/\DeltaCom and all
other "indemnified persons" (as defined below) harmless against up to $5 million
in losses resulting from, imposed upon or incurred by any indemnified person,
directly or indirectly, as a result of:

     .    any inaccuracy or breach of a representation or warranty of AvData
          given or made by AvData in the merger agreement, in the certificate of
          merger or in the exhibits or schedules to the merger agreement or in
          any certificate or document delivered by or on behalf of AvData
          pursuant thereto

                                       65               TERMS OF THE TRANSACTION
<PAGE>

     .    any failure by AvData to perform or comply with any covenant or
          agreement contained in the merger agreement, in the certificate of
          merger or in the exhibits or schedules to the merger agreement or in
          any certificate or document delivered by or on behalf of AvData
          pursuant thereto

     .    certain other litigation, tax, assessment, employee benefit and
          customer-related matters as described in the merger agreement

               Notwithstanding the foregoing, however, AvData's stockholders
     will not be responsible for indemnification with respect to

     .    the first $60,000 of losses incurred with respect to certain employee
          benefit matters set forth in the merger agreement;

     .    the first $220,000 of any losses incurred with respect to certain tax
          and assessment matters set forth in the merger agreement; and

     .    the first $100,000 of any other losses, except for losses incurred
          with respect to certain customer-related matters set forth in the
          merger agreement, for which there will be no deductible.

Any payment for indemnification will be made from the ITC/\DeltaCom common stock
held in escrow.  See "-- Conversion of AvData Common Stock; Escrow Stock."  No
individual AvData stockholder will be liable for any of the above losses in an
amount greater than a percentage of the total loss that equals the percentage of
common stock owned by that stockholder of all AvData common stock that is
outstanding or issuable pursuant to options (less shares which represent the
consideration payable for such options) that are held by persons who become
employees of ITC/\DeltaCom or any of its subsidiaries as of the effective time
of the merger and are vested immediately prior to the merger.

     As used in the above description, the term "indemnified person" means any
of ITC/\DeltaCom, Interstate FiberNet and their respective officers and
directors, and each person, if any, who controls or may control ITC/\DeltaCom or
Interstate FiberNet within the meaning of the Securities Act of 1933 (but no
stockholder of AvData may be considered an indemnified person).

                                       66               TERMS OF THE TRANSACTION
<PAGE>

   Stockholders' Representative


     If the merger is approved, Mr. Kenneth F. Leddick will become attorney-in-
fact and authorized and empowered to act, for and on behalf of any or all of the
AvData's stockholders (with full power of substitution in the premises), in
connection with the indemnity provisions and the agreement covering the
ITC/\DeltaCom common stock held in escrow as they relate to AvData and its
stockholders generally, and such other matters as are reasonably necessary for
the consummation of the transactions contemplated in the merger agreement.  The
AvData stockholders' representative would have the authority, among other
things, to:

     .    review all claims for indemnification asserted by an indemnified
          person, and, to the extent deemed appropriate, dispute, question the
          accuracy of, compromise, settle or otherwise resolve any and all such
          claims;

     .    compromise on the AvData stockholders' behalf with ITC/\DeltaCom any
          claims asserted under the indemnity provisions in the merger
          agreement;

     .    authorize payments to be made with respect to any such claims for
          indemnification;

     .    execute and deliver on behalf of the AvData stockholders any document
          or agreement contemplated by or necessary or desirable in connection
          with the merger agreement or the escrow agreement; and

     .    take such further actions including coordinating and administering
          post-closing matters related to the rights and obligations of the
          AvData stockholders as are authorized in the merger agreement and the
          escrow agreement.

     The AvData stockholders' representative will not be liable to any AvData
stockholder, ITC/\DeltaCom, Interstate FiberNet or their respective affiliates
or any other person with respect to any action taken or omitted to be taken by
the AvData stockholders' representative in that role under or in connection with
the merger agreement unless such action or omission results from or arises out
of fraud, gross negligence or willful misconduct on the part of the AvData
stockholders' representative. ITC/\DeltaCom and Interstate FiberNet will be
entitled to rely on the appointment and treat the AvData stockholders'
representative as the duly appointed attorney-in-fact of each AvData
stockholder. Each AvData stockholder who votes in favor of the merger, by such
vote, without any further action, and each AvData stockholder who receives
shares of ITC/\DeltaCom common stock in connection with the merger, by
acceptance thereof and without any further action, confirms such appointment and
authority. If Mr. Leddick fails to serve as the AvData stockholders'
representative, the holders of a majority of the then-previously issued shares
of AvData common stock will be entitled to elect a successor representative.

   Conditions to Consummation of the Merger


     Conditions to Each Party's Obligation to Effect the Merger.  Each party's
obligation to effect the merger is subject to the satisfaction or waiver, where
permissible, of the following conditions at or prior to the effective time of
the merger:

          (1) the merger agreement and the merger will have been adopted and
     approved by the requisite vote of the stockholders of AvData;

          (2) no governmental entity or court will have enacted, issued,
     promulgated, enforced or entered any statute, rule, regulation, executive
     order, decree, judgment, injunction or other order, provided that the
     failure to obtain a required consent or approval of a governmental entity,
     other than those specified in paragraphs (3) and (4) below, will not form
     the basis for an assertion that this condition is not satisfied;

          (3) the applicable waiting period under the Hart-Scott-Rodino
     Antitrust Improvements Act will have expired or been terminated;

                                       67               TERMS OF THE TRANSACTION
<PAGE>

          (4) all consents, waivers, approvals and authorizations required to be
     obtained and all filings or notices required to be made, by ITC/\DeltaCom
     or AvData prior to the consummation of the transactions contemplated in the
     merger agreement, other than the filing of the articles of merger in
     accordance with the Delaware General Corporation Law, will have been
     obtained from and made with the FCC;

          (5) the registration statement of which this prospectus and proxy
     statement forms a part will have become effective and no stop order
     suspending its effectiveness will have been issued and no proceedings for
     that purpose will have been initiated or, to the knowledge of ITC/\DeltaCom
     or AvData, threatened by the SEC;

          (6) ITC/\DeltaCom will have received all federal or state securities
     permits and other authorizations necessary to issue ITC/\DeltaCom common
     stock in the merger; and

          (7) no action or proceeding before any government entity will have
     been instituted or threatened (and not subsequently settled, dismissed, or
     otherwise terminated) which is reasonably expected to restrain, prohibit or
     invalidate the merger or other transactions contemplated by the merger
     agreement other than an action or proceeding instituted or threatened by a
     party thereto.

     Conditions to the Obligation of ITC/\DeltaCom and Interstate FiberNet to
Effect the Merger.  The obligation of ITC/\DeltaCom and Interstate FiberNet to
effect the merger is subject to the satisfaction or waiver, where permissible,
of the following conditions at or prior to the effective time of the merger:

          (1) the representations and warranties of AvData will be true and
     correct as of the date of the merger agreement and will be true and correct
     in all material respects (except that where any statement in a
     representation expressly includes a standard of materiality, such statement
     will be true and correct in all respects giving effect to such standard) as
     of the effective time of the merger as though made as of the effective time
     of the merger, except for a representation or warranty that speaks as of a
     specific date or time (which need only be true and correct in all material
     respects as of such date or time), and ITC/\DeltaCom will have received a
     certificate of the chief executive officer of AvData to that effect;

          (2) AvData will have performed or complied in all material respects
     with all agreements required to be performed or complied with by it under
     the merger agreement at or prior to the effective time of the merger, and
     ITC/\DeltaCom will have received a certificate of the chief executive
     officer of AvData to that effect;

          (3) there will have not occurred a material adverse change in the
     business, operations, financial condition, assets or liabilities of AvData
     (regardless of whether or not such events or changes are inconsistent with
     the representations and warranties given in the merger agreement by
     AvData), except changes contemplated by the merger agreement;

          (4) ITC/\DeltaCom and Interstate FiberNet will have obtained approval
     of the merger agreement and the merger by the boards of directors of
     ITC/\DeltaCom and Interstate FiberNet, respectively;

          (5) ITC/\DeltaCom will have obtained approval of the merger agreement
     by the "Majority Lenders" as such term is defined in the First Amended and
     Restated Credit Agreement dated as of February 24, 1998 by and among
     Interstate FiberNet, NationsBank, N.A., as a Lender and Administrative
     Lender, and the other Lenders party thereto, as further amended;

                                       68               TERMS OF THE TRANSACTION
<PAGE>

          (6) AvData will have delivered to ITC/\DeltaCom at or before the
     closing of the merger all consents or notices necessary to be obtained or
     made by AvData in connection with the transactions contemplated by the
     merger agreement;

          (7) other than 30,772,170 shares of AvData common stock and 122
     options to purchase 1,936,500 shares of AvData common stock, there will be
     no other securities of AvData outstanding that are convertible into or
     exchangeable for AvData common stock or any other equity securities of
     AvData and no outstanding options, rights (preemptive or otherwise), or
     warrants to purchase or to subscribe for any shares of such stock or other
     equity securities of AvData;



          (8)  ITC/\DeltaCom, Interstate FiberNet, the escrow agent and the
     AvData stockholders' representative will have entered into the Escrow
     Agreement at or before the closing of the merger;

          (9)  ITC/\DeltaCom will have received an opinion from Sutherland,
     Asbill & Brennan, LLP, counsel to AvData, in form and substance reasonably
     satisfactory to ITC/\DeltaCom and its counsel;

          (10) ITC/\DeltaCom will have entered into a Noncompetition Agreement
     duly executed by James H. Black, Jr. in form, scope and substance
     reasonably acceptable to ITC/\DeltaCom;

          (11) ITC/\DeltaCom will have received an executed Affiliate Agreement
     from each affiliate of AvData that receives ITC/\DeltaCom common stock in
     the merger;

          (12) AvData will have executed and/or delivered to ITC/\DeltaCom such
     additional documents, certificates, opinions and agreements as
     ITC/\DeltaCom may reasonably request;

          (13) the number of shares held by AvData stockholders that exercise
     their appraisal rights in connection with the merger will not be so large
     that the merger would fail to qualify as a reorganization within the
     meaning of Section 368 of the Internal Revenue Code of 1986;

          (14) AvData employees identified in the merger agreement will have
     agreed to become employees of ITC/\DeltaCom Communications, Inc. following
     the effective time of the merger and will have executed a Confidentiality,
     Ownership and Intellectual Property and Nonsolicitation Agreement; and

          (15) certain loans identified in the merger agreement will be paid in
     full or secured by ITC/\DeltaCom common stock subject to documentation
     reasonably acceptable to ITC/\DeltaCom, as provided in the merger
     agreement.

     Conditions to the Obligation of AvData to Effect the Merger.  The
obligation of AvData to effect the merger is subject to the satisfaction or
waiver, where permissible, of the following conditions at or prior to the
effective time of the merger:

                                       69               TERMS OF THE TRANSACTION
<PAGE>

          (1) the representations and warranties of ITC/\DeltaCom and Interstate
     FiberNet made in the merger agreement will be true and correct in all
     material respects, on and as of the effective time of the merger with the
     same effect as though such representations and warranties had been made on
     and as of the effective time of the merger (provided that any
     representation or warranty contained therein that is qualified by a
     materiality standard will not be further qualified by this condition),
     except for representations and warranties that speak as of a specific date
     or time other than the effective time of the merger (which need only be
     true and correct in all material respects as of such date or time), and
     AvData will have received a certificate signed on behalf of ITC/\DeltaCom
     by the chief executive officer of ITC/\DeltaCom to that effect;

          (2) the agreements and covenants of ITC/\DeltaCom and Interstate
     FiberNet required to be performed on or before the effective time of the
     merger will have been performed in all material respects, and AvData will
     have received a certificate of the chief executive officer of ITC/\DeltaCom
     to that effect;

          (3) ITC/\DeltaCom and Interstate FiberNet will have delivered to
     AvData at or before closing of the merger all consents or notices necessary
     to be obtained or made by ITC/\DeltaCom and Interstate FiberNet, as the
     case may be, in connection with the transactions contemplated by the merger
     agreement;

          (4) ITC/\DeltaCom, Interstate FiberNet, the escrow agent and the
     AvData stockholders' representative will have entered into the Escrow
     Agreement at or before closing of the merger;

          (5) AvData will have received an opinion from Hogan & Hartson L.L.P.,
     counsel to ITC/\DeltaCom and Interstate FiberNet, in form and substance
     reasonably satisfactory to AvData and its counsel;

          (6) AvData will have obtained approval of the merger agreement and the
     transactions contemplated hereunder by AvData's stockholders;

          (7) ITC/\DeltaCom or its appropriate affiliate will have amended its
     401(k) plan so as to permit the transfer of the existing loans for those
     employees of AvData who have loans under AvData's 401(k) plan and who
     become employees of ITC/\DeltaCom or any of its subsidiaries as of the
     effective time of the merger.

   Termination of the Merger Agreement


The merger agreement may be terminated at any time prior to the effective time
of the merger:

     (1) by mutual written consent of ITC/\DeltaCom and AvData;

     (2) by ITC/\DeltaCom if (1) AvData breaches in any material respect any of
its representations, warranties, covenants or agreements contained in the merger
agreement, or any such representation or warranty becomes untrue in any material
respect, in any such case such that the conditions precedent to the obligations
of ITC/\DeltaCom to close the merger are not satisfied and such breach is not
promptly cured within 30 days following receipt by AvData of written notice of
such breach or (2) the closing price of ITC/\DeltaCom common stock on The Nasdaq
National Market is less than $11.50 as of the trading day immediately preceding
the day of the effective time of the merger;

     (3) by AvData if either ITC/\DeltaCom or Interstate FiberNet breaches in
any material respect any of their representations, warranties, covenants or
agreements contained in the merger agreement, or any such representation or
warranty becomes untrue in any material respect, in any such case such that the
conditions precedent to the obligation of AvData to close specified in the

                                       70               TERMS OF THE TRANSACTION
<PAGE>

merger agreement are not satisfied and such breach is not promptly cured within
30 days following receipt by ITC/\DeltaCom of written notice of such breach;

     (4) by either ITC/\DeltaCom or AvData if any decree, permanent injunction,
judgment, order or other action by any court of competent jurisdiction or any
government entity preventing or prohibiting consummation of the merger will have
become final and nonappealable;

     (5) by either ITC/\DeltaCom or AvData if the effective time of the merger
has not occurred on or prior to August 31, 1999 (unless such date will be
extended by the mutual written consent of the parties), except that this right
to terminate the merger agreement is not available to any party whose breach of
representations, warranties, covenants or agreements contained in the merger
agreement was the sole cause of, or resulted in, the failure of the effective
time of the merger to occur by such date or the inability of such condition to
be satisfied;

     (6) by ITC/\DeltaCom, if (1) the board of directors of AvData withdraw,
modify or change its recommendation of the merger agreement or the merger in a
manner adverse to ITC/\DeltaCom or resolves to do any of the foregoing or (2)
AvData enters into any agreement, commitment or understanding regarding a
"competing transaction" (as defined below), or endorses or publicly announces
any proposal, plan or intention to enter into a competing transaction;

     (7) by ITC/\DeltaCom, if the board of directors of AvData recommends to
AvData stockholders (1) any merger, consolidation, share exchange, business
combination, or other similar transaction, (2) any sale, lease, exchange,
mortgage, pledge, transfer or other disposition of 10% or more of the assets of
AvData or issuance of 20% or more of the outstanding voting securities of AvData
in a single transaction or series of transactions; or (3) any tender offer or
exchange offer for 20% or more of the outstanding shares of capital stock of
AvData;

     (8) by AvData, if the board of directors of AvData (1) fails to make or
withdraws or modifies its recommendation to AvData stockholders that they
approve the merger, if there exists at such time a tender offer, exchange offer
or bona fide proposal by another person or entity to acquire AvData or (2)
recommends to AvData stockholders approval or acceptance of such a bona fide
proposal, in each case only if the board of directors, after consultation with
outside legal counsel, determines in good faith that such action is necessary
for the board of directors to comply with its fiduciary duties to AvData
stockholders under the Delaware General Commercial Law; or

     (9) by AvData if the merger agreement fails to receive the requisite vote
for approval and adoption by AvData stockholders at the AvData stockholders'
special meeting.

     If this merger agreement is terminated pursuant to any of the above
reasons, the merger agreement will forthwith become void and there will be no
liability or obligation on the part of any party hereto, except that

     .  all information and knowledge obtained pursuant to the merger agreement,
        the negotiations and execution of the merger agreement, or the
        effectuation of the transactions contemplated thereby will continue to
        be subject to the confidentiality agreement dated January 15, 1999
        between the parties

     .  if the merger agreement is terminated by ITC/\DeltaCom for the reasons
        provided in paragraphs 7 or 8 above, then AvData will pay ITC/\DeltaCom
        $1 million for the reasonable fees and expenses incurred by
        ITC/\DeltaCom in connection with the merger agreement and the
        transactions contemplated thereby

     .  except as described above, all costs and expenses will be paid by the
        party incurring such expense (which costs and expenses, in the case of
        AvData, may not exceed $500,000)

                                  71                    TERMS OF THE TRANSACTION
<PAGE>

   Waiver and Amendment of the Merger Agreement

     Waiver.  At any time prior to the effective time of the merger, the parties
to the merger agreement may agree to:

     .    extend the time for the performance of any obligation or other act
          required to be performed under the merger agreement

     .    waive any inaccuracies in the representations and warranties contained
          in the merger agreement or in any document delivered pursuant thereto

     .    waive compliance with any of the agreements or conditions contained in
          the merger agreement.

   Amendment.  The merger agreement may only be amended by an instrument in
writing signed by ITC/\DeltaCom, AvData, Interstate FiberNet and the AvData
stockholders' representative.

   Expenses

     The merger agreement provides that each party will pay its own costs and
expenses incurred in connection with the merger agreement and the transactions
contemplated thereby, provided that if the merger agreement is terminated by
ITC/\DeltaCom for the reasons provided in paragraphs 7 or 8 of "--Termination of
the Merger Agreement" above, then AvData will pay ITC/\DeltaCom $1 million for
its reasonable fees and expenses.  In no event may AvData's fees and expenses
exceed $500,000.

                                  72                    TERMS OF THE TRANSACTION
<PAGE>

INFORMATION ABOUT ITC/\DELTACOM

General

     ITC/\DeltaCom provides integrated voice and data telecommunication services
to mid-sized and major regional businesses in the southern United States and is
a leading regional provider of wholesale long-haul services to other
telecommunications companies. In connection with these businesses, ITC/\DeltaCom
owns, operates and manages an extensive fiber optic network in the southern
United States.  ITC/\DeltaCom had revenues of approximately $171.8 million for
the year ended December 31, 1998, which represents a 50% increase over revenues
of $114.6 million for the year ended December 31, 1997, and revenues of
approximately $53.0 million for the three months ended March 31, 1999.

     ITC/\DeltaCom provides integrated retail telecommunications services to
mid-sized and major regional businesses in the southern United States in a
single bundled package tailored to the business customer's specific needs. These
services include local exchange services, long distance services, toll free
calling, calling card and operator services, Asynchronous Transfer Mode or ATM,
frame relay, high capacity broadband private line services, primary rate
interface connectivity and co-location service to Internet service providers, as
well as Internet, intranet and Web page hosting and development services, and
customer premise equipment sales, installation and repair. ITC/\DeltaCom refers
to these services collectively as its Retail Services. As of March 31, 1999,
ITC/\DeltaCom provided Retail Services to over 11,600 business customers in 23
metropolitan areas (including local exchange services in 21 markets) in Alabama,
Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina and South
Carolina. ITC/\DeltaCom intends to provide a full range of Retail Services in a
total of approximately 42 metropolitan areas throughout the southern United
States over the next two years. For the three months ended March 31, 1999,
revenue from the Retail Services was $36.6 million and EBITDA as a percentage of
revenue for Retail Services was (7.5)%.

     ITC/\DeltaCom provides wholesale long-haul services to other
telecommunications carriers, including AT&T Corp., MCI WorldCom, Inc., Sprint
Corporation, Qwest Communications International Inc., Cable & Wireless
Communications, Inc., Allnet Communications, Inc. d/b/a Frontier Communications
Services and IXC Communications, Inc. ITC/\DeltaCom refers to these wholesale
long-haul services as its Carriers' Carrier Services.  ITC/\DeltaCom's fiber
optic network reaches over 80 points of presence, or POPs, in ten southern
states, Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North
Carolina, South Carolina, Tennessee and Texas.  This network extends
approximately 7,800 route miles, of which approximately 4,150 miles are owned by
ITC/\DeltaCom.  The remaining approximately 3,650 miles are owned and operated
principally by three public utilities, Duke Power Company, Florida Power & Light
Company and Entergy Technology Company, but are managed and marketed by
ITC/\DeltaCom.  For the three months ended March 31, 1999, revenue from the
Carriers' Carrier Services was $16.5 million and EBITDA as a percentage of
revenue for Carriers' Carrier Services was 53.2%. As of March 31, 1999,
ITC/\DeltaCom had remaining future long-term contract commitments for Carriers'
Carrier Services totaling approximately $130.3 million. These contracts expire
on various dates through 2008 and are expected to generate approximately $113.0
million in revenues to ITC/\DeltaCom through 2003, of which approximately $24.7
million are expected to be realized through the remainder of 1999.

     In connection with offering local exchange services, ITC/\DeltaCom has
entered into an interconnection agreement with BellSouth Telecommunications,
Inc. to (1) resell BellSouth's local exchange services and (2) interconnect
ITC/\DeltaCom's network with BellSouth's network for the purpose of immediately
gaining access to all of BellSouth's unbundled network elements. ITC/\DeltaCom
has also entered into similar interconnection agreements with GTE Corporation
for its Alabama market, with Southwestern Bell Telephone Company for its
Arkansas markets and with Sprint Corporation for Sprint's Florida markets.
ITC/\DeltaCom intends to complete additional

                                  73                    ITC DELTACOM INFORMATION
<PAGE>

interconnection agreements with GTE Corporation, Southwestern Bell Telephone
Company and Sprint Corporation for certain other markets that it serves or
intends to serve. These agreements allow IT/\DeltaCom to enter new markets with
minimal capital expenditures and to offer local exchange services to its current
customer base.

     ITC/\DeltaCom was incorporated in Delaware in March, 1997. ITC/\DeltaCom's
principal executive offices are located at 1791 O.G. Skinner Drive, West Point,
Georgia 31833, its telephone number is (706) 385-8000 and its Internet Website
is http://www.itcdeltacom.com. Information on ITC/\DeltaCom's Web Site is not,
and should not be deemed to be, a part of this prospectus and proxy statement.

Additional Information

     A detailed description of ITC/\DeltaCom's business, executive compensation,
various benefit plans, including stock option plans, voting securities and the
principal holders thereof, certain relationships and related transactions,
financial statements and other matters related to ITC/\DeltaCom is set forth in
documents considered a part of, but not included in, this prospectus and proxy
statement.  Stockholders desiring copies of such documents may contact
ITC/\DeltaCom at its address or telephone number indicated under "Where You Can
Find More Information."

                                  74                   ITC DELTACOM INFORMATION
<PAGE>

             Selected Consolidated Financial Data of Itc/\Deltacom

     The information in the following table is based on historical financial
information included in ITC/\DeltaCom's prior SEC filings.  You should read the
following financial information in connection with the historical financial
information, including the notes which accompany such financial information.
The historical financial information is considered a part of this document.  See
"Where You Can Find More Information" on page 114.  The selected historical
statement of operations data for each of the years ended December 31, 1994,
1995, 1996, 1997 and 1998 and the selected historical balance sheet data for the
years then ended, have been derived from the consolidated financial statements
that have been audited by Arthur Andersen LLP, independent public accountants.
The selected historical statements of operations data for the three months ended
March 31, 1998 and 1999 and the historical balance sheet data as of March 31,
1999 have been derived from ITC/\DeltaCom's unaudited consolidated financial
statements and include, in the opinion of management, all adjustments
(consisting of only normal recurring adjustments) necessary to present fairly
the data for such periods.

                                                 (table begins on the next page)

                                  75                    ITC DELTACOM INFORMATION
<PAGE>

             Selected Consolidated Financial Data of ITC/\DeltaCom
                       (In thousands, except share data)

<TABLE>
<CAPTION>

                                                                                                              @@Three Months
                                                    Year ended December 31,                                   ended March 31,
                             --------------------------------------------------------------------------  ------------------------
                                                                                                         (unaudited)
                                1994(a)(b)          1995         1996(c)        1997(d)(e)      1998        1998         1999
                               -----------      -----------   -----------     -----------   -----------  -----------  -----------
<S>                          <C>                <C>           <C>             <C>           <C>          <C>          <C>
INCOME STATEMENT DATA:
Operating revenues.........    $     4,946      $     5,751   $    66,518     $   114,590   $   171,838  $    36,694  $    53,034
                               -----------      -----------   -----------     -----------   -----------  -----------  -----------
Operating expenses:
 Cost of services..........          2,485            3,149        38,756          54,550        82,979       16,873       26,761
 Selling, operations, and
 administration............            948            1,627        18,876          38,255        64,901       13,567       20,268
Depreciation and
 amortization..............            738            1,268         6,438          18,332        30,887        6,321       11,168
                               -----------      -----------   -----------     -----------   -----------  -----------  -----------
Total operating expenses...          4,171            6,044        64,070         111,137       178,767       36,761       58,197
                               -----------      -----------   -----------     -----------   -----------  -----------  -----------
Operating income (loss)....            775             (293)        2,448           3,453        (6,929)         (67)      (5,163)
Equity in losses of
unconsolidated subsidiary..            (97)            (258)       (1,590)             --            --           --           --
Interest expense...........           (274)            (297)       (6,173)        (21,367)      (32,828)      (7,499)     (10,463)
Interest and other income
 (other
expense), net..............             82               41           172           4,251         7,397          543        2,614
                               -----------      -----------   -----------     -----------   -----------  -----------  -----------
Income (loss) before
 income taxes,
preacquisition (earnings)
 loss
and extraordinary item.....            486             (807)       (5,143)        (13,663)      (32,360)      (7,023)     (13,012)
Income tax provision
 (benefit).................            113             (303)       (1,233)         (3,324)       (6,454)      (2,388)          --
Preacquisition (earnings)
 loss......................           (236)              --            --              74            --           --           --
Extraordinary item (net of
 income tax)...............             --               --            --            (508)       (8,436)      (8,436)          --
                               -----------      -----------   -----------     -----------   -----------  -----------  -----------
Net income (loss)..........    $       137      $      (504)  $    (3,910)    $   (10,773)  $   (34,342) $   (13,071) $   (13,012)
                               ===========      ===========   ===========     ===========   ===========  ===========  ===========

Basic and diluted net
 income (loss) per
common share: (f)
Before extraordinary loss..    $        --           $(0.01)       $(0.10)         $(0.26)       $(0.51)      $(0.09)      $(0.25)
  Extraordinary loss.......             --               --            --           (0.01)        (0.16)       (0.17)          --
                               -----------      -----------   -----------     -----------   -----------  -----------  -----------
  Net income (loss)........    $        --           $(0.01)       $(0.10)         $(0.27)       $(0.67)      $(0.26)      $(0.25)
                               ===========      ===========   ===========     ===========   ===========  ===========  ===========

Basic weighted average
 common
shares outstanding (f) (g).     38,107,350       38,107,350    38,107,350      40,249,816    50,972,361   50,190,058   51,506,644
Diluted weighted average
 common
shares outstanding (f) (g).     38,203,852       38,203,852    38,203,852      40,249,816    50,972,361   50,190,058   51,506,644
</TABLE>

<TABLE>
<CAPTION>
                                                                     December 31,                              March 31,
                              -----------------------------------------------------------------------------    ---------
                              1994(a)(b)          1995         1996(c)       1997(d)(e)         1998             1999
                             -------------        ----         -------       ----------         ----             ----
                                                                                                             (Unaudited)
<S>                          <C>              <C>           <C>             <C>            <C>              <C>
BALANCE SHEET DATA:
Working capital (deficit)..  $       255      $      (242)  $     3,415     $   116,446    $   190,118      $   156,041
Total assets...............       20,062           20,922       113,208         386,104        587,517          579,123
Long-term debt, advances
 from ITC
Holding and capital lease
 obligations,
including current portions.        4,014            3,144        75,443         203,889        417,934          417,761
Stockholders' equity.......       13,761           14,307        19,257         148,266        118,200          105,918
</TABLE>

<TABLE>
<CAPTION>
                                                                                                              Three months
                              ------------------------------------------------------------------------------------------------
                                                  Year ended December 31,                                    ended March 31,
                              ------------------------------------------------------------------------------------------------
                              1994(a)(b)            1995        1996(c)        1997(d)(e)      1998          1998        1999
                              ---------             ----        -------        ----------      ----          -----------------
                                                                                                                (Unaudited)
<S>                           <C>               <C>           <C>             <C>           <C>            <C>
OTHER FINANCIAL DATA:
Capital expenditures.......    $     3,704      $     1,806   $     6,173     $    43,874   $   147,842    $  22,042  $ 29,315
Cash flows (used in)
 provided by
operating activities.......            979            1,437         8,189           6,302         9,512        9,701    (3,792)
Cash flows used in
 investing
activities.................         10,704            1,479        72,694          93,854       118,166       22,966    29,635
Cash flows provided by
financing activities.......         10,102              180        65,150         180,625       198,447      155,633       554
EBITDA, as adjusted (h)....          1,513              975         8,886          21,785        23,958        6,254     6,005
Ratio of earnings to fixed
 charges (i)                         2.65x               --            --              --            --           --        --
</TABLE>

(a) Through August 17, 1994, ITC/\DeltaCom owned a 49% interest in Interstate
    FiberNet and accounted for this investment under the equity method.  On
    August 17, 1994, ITC/\DeltaCom purchased the remaining 51% interest

                                  76                    ITC DELTACOM INFORMATION
<PAGE>

    in Interstate FiberNet. Interstate FiberNet's revenues and expenses have
    been included in the consolidated statement of operations effective January
    1, 1994, with the preacquisition earnings attributable to the previous owner
    deducted to determine consolidated net income for 1994.

(b) On August 17, 1994, ITC/\DeltaCom entered into the Gulf States FiberNet
    partnership.  ITC/\DeltaCom obtained a 36% general partnership interest, and
    the investment was accounted for under the equity method.

(c) On January 29, 1996, ITC Holding purchased DeltaCom.  DeltaCom's results of
    operations are included in the historical statement of operations data since
    the date of acquisition.  See Note 11 to the consolidated financial
    statements in ITC/\DeltaCom's Annual Report on Form 10-K incorporated herein
    by reference.

(d) On March 27, 1997, ITC/\DeltaCom purchased the Georgia Fiber Assets.  The
    results of operations for the Georgia Fiber Assets are included in the
    consolidated statements of operations beginning March 27, 1997.  See Note 11
    to the consolidated financial statements in ITC/\DeltaCom's Annual Report on
    Form 10-K incorporated herein by reference.

(e) On March 27, 1997, ITC/\DeltaCom purchased the remaining 64% partnership
    interest in Gulf States FiberNet. Gulf States FiberNet's revenues and
    expenses have been included in the consolidated statement of operations data
    effective January 1, 1997 with the preacquisition loss attributable to the
    previous owner deducted to determine the consolidated net loss for the year
    ended December 31, 1997. See Note 11 to the consolidated financial
    statements in ITC/\DeltaCom's Annual Report on Form 10-K incorporated herein
    by reference.

(f) On July 29, 1998, ITC/\DeltaCom announced a two-for-one stock split of its
    common stock to be effected in the form of a stock dividend. The record date
    for the stock split was August 18, 1998 and the payment date was September
    4, 1998. The common stock began trading giving effect to the stock split on
    September 8, 1998. All references to number of shares, except shares
    authorized, and to per share information in the consolidated financial
    statements have been adjusted to reflect the stock split on a retroactive
    basis.

(g) Pursuant to Staff Accounting Bulletin 98, for periods prior to the
    completion of the initial public offering, basic net loss per share is
    computed using the weighted average number of shares of common stock
    outstanding during the period.  Diluted net loss per share is computed using
    the weighted average number of shares of common stock outstanding during the
    period and nominal issuances of common stock and common stock equivalents,
    regardless of whether they are anti-dilutive.

(h) EBITDA, as adjusted, represents earnings before extraordinary item,
    preacquisition (earnings) loss, equity in losses of unconsolidated
    subsidiaries, net interest, income taxes, depreciation and amortization.
    EBITDA, as adjusted, is provided because it is a measure commonly used in
    the industry.  EBITDA, as adjusted, is not a measurement of financial
    performance under generally accepted accounting principles and should not be
    considered an alternative to net income as a measure of performance or to
    cash flow as a measure of liquidity.  EBITDA, as adjusted, is not
    necessarily comparable with similarly titled measures for other companies.

(i) Earnings consist of income before income taxes, plus fixed charges.  Fixed
    charges consist of interest charges and amortization of debt issuance costs
    and the portion of rent expense under operating leases representing interest
    (estimated to be one-third of such expense).  Earnings were insufficient to
    cover fixed charges for the years ended December 31, 1995, 1996, 1997, 1998
    and the three months ended March 31, 1999 by $0.8 million, $5.1 million,
    $13.7 million, $32.4 million and $14.2 million, respectively.

                                  77                    ITC DELTACOM INFORMATION
<PAGE>

                           Pro Forma Financial Data

     The pro forma statement of operations for the year ended December 31, 1998
give effect to the following transactions as if each had occurred at the
beginning of the period presented:  (1) the issuance of our March 1998 senior
notes, (2) the redemption of $70 million of our 1997 senior notes, (3) the
issuance of our November 1998 senior notes, (4) the issuance of our May 1999
convertible subordinated notes, (5) the issuance of 6,037,500 shares of our
common stock in May 1999 and (6) the merger with AvData.  The pro forma
statement of operations for the three months ended March 31, 1999 give effect to
the following transactions as if each occurred at the beginning of the period
presented:  (1) the issuance of our May 1999 convertible subordinated notes, (2)
the issuance of 6,037,500 shares of our common stock in May 1999, and (3) the
merger with AvData.  The pro forma balance sheet data as of March 31, 1999 give
effect to (1) the issuance of our May 1999 convertible subordinated notes, (2)
the issuance of 6,037,500 shares of our common stock in May 1999 and (3) the
merger with AvData, as if each occurred on March 31, 1999.

  The pro forma financial and operating information does not purport to
represent what our consolidated results of operations would have been if these
transactions had in fact occurred on these dates, nor does it purport to
indicate the future consolidated financial position or consolidated results of
operations of ITC/\DeltaCom.  The pro forma adjustments are based on currently
available information and certain assumptions that management believes to be
reasonable.

                                  78                    ITC DELTACOM INFORMATION
<PAGE>

                       ITC/\DeltaCom, Inc. and Subsidiaries
           Unaudited Pro Forma Consolidated Statement of Operations
                       (In thousands, except share data)

<TABLE>
<CAPTION>
                                                                  For the Year ended December 31, 1998
                                        ----------------------------------------------------------------------------------------
                                                        Adjustments
                                         Historical     for our 1998                                Adjustments      Pro Forma,
                                        ITC/\DeltaCom      and 1999      Pro Forma      AvData     for the AvData     As further
                                        Consolidated   Financings (1)  as adjusted   Historical   Acquisition(2)      Adjusted
                                        -------------  --------------  ------------  ----------  -----------------  ------------
<S>                                     <C>            <C>             <C>           <C>         <C>                <C>
Operating revenues                       $   171,838      $       --      $171,838      $30,183      $       --     $   202,021
Cost of services                              82,979              --        82,979       18,796              --         101,775
                                         -----------      ----------      --------      -------  --------------     -----------
Gross margin                                  88,859              --        88,859       11,387              --         100,246
                                         -----------      ----------      --------      -------  --------------     -----------
Operating expenses:
 Selling, operations, and
 administration                               64,901              --        64,901        8,771              --          73,672
 Depreciation and amortization                30,887              --        30,887        1,085           1,228          33,200
                                         -----------      ----------      --------      -------  --------------     -----------
 Total operating expenses                     95,788              --        95,788        9,856           1,228         106,872
                                         -----------      ----------      --------      -------  --------------     -----------
Operating (loss) income                       (6,929)             --        (6,929)       1,531          (1,228)         (6,626)
                                         -----------      ----------      --------      -------  --------------     -----------
Other (expense) income:
 Interest expense                            (32,828)        (14,933)      (47,761)          --              --         (47,761)
 Interest income                               9,753            (414)        9,339          172              --           9,511
 Other (expense) income                       (2,356)          2,512           156           --              --             156
                                         -----------      ----------      --------      -------  --------------     -----------
 Total other (expense) income                (25,431)        (12,835)      (38,266)         172              --         (38,094)
                                         -----------      ----------      --------      -------  --------------     -----------
(Loss) income before income taxes
 and extraordinary item                      (32,360)        (12,835)      (45,195)       1,703          (1,228)        (44,720)
Income tax benefit                            (6,454)             --        (6,454)          --              --          (6,454)
                                         -----------      ----------      --------      -------  --------------     -----------
Net (loss) income before
extraordinary item                       $   (25,906)     $  (12,835)     $(38,741)     $ 1,703      $   (1,228)    $   (38,266)
                                         ===========      ==========      ========      =======  ==============     ===========

Basic and diluted net loss before
 extraordinary item per common
 share                                   $     (0.51)                                                               $(0.66)(3)
                                         ===========                                                                ==========

Basic and diluted weighted average
 common shares outstanding                50,972,361       6,037,500                                  1,131,792      58,141,653
</TABLE>


______________

(1) Reflects (a) adjustments to interest expense for the sale by us of our March
    1998 senior notes, the redemption of $70 million principal amount of our
    1997 senior notes, the sale by us of our November 1998 senior notes, and the
    sale by us of the May 1999 convertible subordinated notes, (b) the
    elimination of the non-recurring charge of $2.5 million ($1.5 million, net
    of tax), related to reclassifying our interest rate swap from a hedge of an
    anticipated transaction to a trading security, (c) a pro forma adjustment to
    reduce interest income relating to the release of restricted assets after
    giving effect to the redemption of a portion of our 1997 senior notes and
    (d) the sale by us of common stock in May 1999, as if each had occurred on
    January 1, 1998.

(2) Reflects amortization of goodwill and customer base, over 20 years and 10
    years, respectively, in connection with the AvData acquisition based on
    management's preliminary allocation of the purchase price.  This allocation
    may be revised within one year from the acquisition date.

(3) Excludes the impact of an additional $10 million of common stock subject to
    issuance to the stockholders of AvData under the earn-out provisions of the
    merger agreement.  If such consideration is earned and issued, the pro forma
    net loss per share would also have been $(0.66).

                                  79                    ITC DELTACOM INFORMATION
<PAGE>

                       ITC/\DeltaCom, Inc. and Subsidiaries
           Unaudited Pro Forma Consolidated Statement of Operations
                       (In thousands, except share data)

                   For the Three Months Ended March 31, 1999
                   -----------------------------------------

<TABLE>
<CAPTION>
                                          Historical     Adjustments                                  Adjustments     Pro Forma,
                                         ITC/\DeltaCom    for our 1999    Pro Forma      AvData      for the AvData     Further
                                         Consolidated   Financings (1)  As Adjusted   Historical    Acquisition(2)     Adjusted
                                         -------------  --------------  ------------  -----------  ----------------  ------------
<S>                                      <C>            <C>             <C>           <C>          <C>              <C>
Operating revenues                        $    53,034      $       --      $ 53,034       $5,207       $       --   $    58,241
Cost of services                               26,761              --        26,761        2,926               --        29,687
                                          -----------      ----------      --------       ------   --------------   -----------
Gross margin                                   26,273              --        26,273        2,281               --        28,554
                                          -----------      ----------      --------       ------   --------------   -----------
Operating expenses:
 Selling, operations, and administration       20,268              --        20,268        2,218               --        22,486
 Depreciation and amortization                 11,168              --        11,168          292              307        11,767
                                          -----------      ----------      --------       ------   --------------   -----------
 Total operating expenses                      31,436              --        31,436        2,510              307        34,253
                                          -----------      ----------      --------       ------   --------------   -----------
Operating loss                                 (5,163)             --        (5,163)        (229)            (307)       (5,699)
                                          -----------      ----------      --------       ------   --------------   -----------
Other (expense) income:
 Interest expense                             (10,463)         (1,231)      (11,694)          --               --       (11,694)
 Interest income                                2,389              --         2,389           31               --         2,420
 Other income                                     225              --           225           --               --           225
                                          -----------      ----------      --------       ------   --------------   -----------
 Total other (expense) income                  (7,849)         (1,231)       (9,080)          31               --        (9,049
                                          -----------      ----------      --------       ------   --------------   -----------
Loss before income taxes                      (13,012)         (1,231)      (14,243)        (198)            (307)      (14,748)
Income tax provision (benefit)                     --              --            --           --               --            --
                                          -----------      ----------      --------       ------   --------------   -----------
Net loss                                  $   (13,012)     $   (1,231)     $(14,243)      $ (198)      $     (307)  $   (14,748)
                                          ===========      ==========      ========       ======   ==============   ===========

Basic and diluted net loss
 per common share                              $(0.25)                                                              $     (0.25)(3)
                                          ===========                                                               ===========
Basic and diluted weighted average
 shares outstanding                        51,506,644       6,037,500                                   1,131,792    58,675,936
</TABLE>


______________

(1) Reflects (a) an adjustment to interest expense for the sale by us of our May
    1999 convertible subordinated notes and (b) an adjustment to reflect the
    sale by us of our common stock in May 1999 as if each had occurred on
    January 1, 1998.

(2) Reflects amortization of goodwill and customer base, over 20 years and 10
    years, respectively, in connection with the AvData acquisition based on
    management's preliminary allocation of the purchase price.  This allocation
    may be revised within one year from the acquisition date.

(3) Excludes the impact of an additional $10 million of common stock subject to
    issuance to the stockholders of AvData under the earn-out provisions of the
    merger agreement.  If such consideration is earned and issued, the pro forma
    net loss per share would also have been $(0.25).

                                  80                    ITC DELTACOM INFORMATION
<PAGE>


                     ITC/\DeltaCom, Inc. and Subsidiaries
                Unaudited Pro Forma Consolidated Balance Sheet
                                 (in thousands)

<TABLE>
<CAPTION>
                                                       As of March 31, 1999
                                                       ---------------------
                                       Historical         Adjustments                                  Adjustments      Pro Forma,
                                      ITC/\DeltaCom      for our 1999    Pro Forma      AvData       for the AvData     As Further
                                      Consolidated       Financings (1)  As Adjusted   Historical      Acquisition       Adjusted
                                  ---------------------  --------------  ------------  -----------  ------------------  -----------
<S>                               <C>                    <C>             <C>           <C>          <C>                 <C>
Assets
Cash and cash equivalents                     $151,294        $217,882      $369,176      $ 3,523          $    --        $372,699

Current restricted assets                       14,300              --        14,300           --               --          14,300
Accounts receivable, net                        39,275              --        39,275        2,735               --          42,010

Other current assets                             7,267              --         7,267        1,773               --           9,040

Long-term restricted assets                      6,055              --         6,055           --               --           6,055
Intangible assets, net                          62,517              --        62,517           --           21,729 (2)      84,246
Property, plant and equipment,
net                                            284,530              --       284,530        4,382               --         288,912
Other long-term assets                          13,885           2,975        16,860          527             (489)(3)      16,898
                                              --------        --------      --------      -------          -------        --------
  Total assets                                $579,123        $220,857      $799,980      $12,940          $21,240        $834,160
                                              ========        ========      ========      =======          =======        ========

Liabilities and Stockholders'
 Equity
Accounts payable                              $ 23,550        $     --      $ 23,550      $ 3,009          $    --        $ 26,559
Accrued interest                                11,140              --        11,140           --               --          11,140
Other accrued liabilities                       20,336              --        20,336          993               --          21,329
Current maturities of long-term
 debt and
 capital lease obligations                       1,069              --         1,069           60              (60)(3)       1,069
Long-term debt and capital
 lease obligations                             416,692         100,000       516,692           16              (16)(3)     516,692
Deferred income taxes                              418              --           418           --               --             418
Other long-term liabilities                          0              --            --          886               --             886
Preferred stock                                     15              --            15           --               --              15
Common stock                                       516              60           576          318             (307)(4)         587
Treasury stock                                      --              --            --         (219)             219 (4)          --
Additional paid-in capital                     167,750         120,797       288,547        8,265           21,016 (4)     317,828
Note receivable from officer                        --              --            --         (212)             212 (4)          --
Accumulated deficit                            (62,363)             --       (62,363)        (176)             176 (4)     (62,363)
                                              --------        --------      --------      -------          -------         --------
 Total liabilities and
  stockholders' equity                        $579,123        $220,857      $799,980      $12,940          $21,240        $834,160
                                              ========        ========      ========      =======          =======        ========
- ----------------
</TABLE>

                              81                        ITC DELTACOM INFORMATION
<PAGE>

(1) Reflects proceeds from the sale by us of $100 million in 4 1/2% convertible
    subordinated notes, net of debt issuance costs, in May 1999 and the sale of
    6,037,500 shares of our common stock in May 1999, net of offering expenses.

(2) Reflects intangibles related to the AvData acquisition, including $18.9
    million of goodwill and $2.8 million of customer base.  The allocation of
    the purchase price to the fair values of net assets acquired is based on
    current estimates by management and may be revised up to one year from the
    acquisition date.
(3) Reflects an adjustment to (a) provide a valuation allowance against AvData's
    deferred tax asset, and (b) to reflect the repayment of certain liabilities
    assumed to be repaid by AvData prior to the acquisition date.

(4) Reflects (a) the issuance of 1,131,792 shares of common stock by us, based
    on an assumed $25 per share price to effect the merger with AvData, (b) the
    issuance of common stock options with a value of approximately $1.0 million
    and (c) the reversal of AvData's historical equity. Excludes the effect of
    the $10 million of common stock subject to issuance under the earn out
    provision of the merger agreement.

                                     82               ITC DELTACOM INFORMATION
<PAGE>

INFORMATION ABOUT AVDATA

AvData Overview

     AvData is a provider of satellite and terrestrial-based network solutions,
primarily to mid-size companies based in the southeastern United States and to
wireless messaging and cellular operators nationwide. AvData designs, implements
and operates private communications networks that carry high-speed, two-way data
for Internet, intranet, voice, paging and other digital transmissions for its
customers. AvData delivers high reliability for these networks based upon its
continuous network monitoring (24 hours a day, every day) and its ability to
quickly identify and correct network outages. AvData generates monthly recurring
revenues under long term contracts by providing on-going network services to its
customers, in addition to any non-recurring equipment and other purchases
AvData's customers might make.

     As of March 31, 1999, AvData had an installed base of approximately 3,500
revenue-producing sites in North America and the Caribbean. Founded in 1988,
AvData's revenues have grown from less than $7 million in 1994 to more than $30
million in 1998, although AvData's revenues are expected to decline in 1999
following substantial completion of the buildout under a large customer
contract. AvData has achieved this growth by increasing its base of revenue-
producing sites, adding terrestrial network solutions to the satellite
technology offered since its founding and through a large, multi-year contract
obtained in September 1995 with PageMart Wireless, Inc., which represents
AvData's single largest network to date.

     AvData believes that demand for network solutions will continue to grow due
to:

     .  increasing demand for bandwidth in intra-business communications,
        especially for Internet and intranet traffic and other digital
        communications applications,

     .  increasing complexity of networks and network operations, leading to a
        growth in outsourcing of the design, implementation and especially the
        ongoing operation and monitoring of communications networks,

     .  high costs of attracting and retaining qualified information technology
        professionals with the skills required to handle network issues "in-
        house," and

     .  increased demand for a "one-stop shopping" network solution, both from
        customers who prefer to deal with a single vendor and from facilities
        providers that wish to offer a "one-stop shopping" network solution to
        their end customers.

To capitalize on these trends, AvData developed network operations and
management services that the company believes are attractive to customers
seeking to outsource network operations. AvData's services are particularly
attractive to entities for whom network failure is extremely costly. AvData
believes these services also will be attractive to systems integrators seeking
to offer a complete, turnkey network solution to their customers.

     AvData uses both satellite and terrestrial capacity to provide on-going
network connectivity for its customers. AvData acquires capacity from multiple
vendors as needed to satisfy customer demand. To date, AvData has not
experienced significant difficulties obtaining capacity. AvData believes that
the use of multiple vendors and diverse routing reduces exposure from the
failure of a single communications facility provider, since at least critical
portions of customer traffic often can be relocated from a failed facility to a
functioning facility of the same or of another vendor. AvData believes that a
strategic relationship with a facilities owner, such as through the merger with
ITC/\DeltaCom, will reduce its costs to provide network capacity and make
AvData's network solutions more cost competitive.

     AvData's principal customers in recent years include PageMart Wireless,
Inc. (a national messaging network with over 1,800 sites on-line), and Motion
Industries (a wholly-owned subsidiary of Genuine Parts Company with over 300
sites).

                                      83                  AVDATA INFORMATION
<PAGE>

Data Network Industry

     Data Network Applications.  There has been significant growth in the
     -------------------------
use of wide area data networks in recent years.  Data networks include various
types of services, such as temporary dial up connections, leased lines for
private networks, ISDN, frame relay and ATM (asynchronous transfer mode)
services.  These data networks are used for many different business
applications.

          Private network services. Many companies implement "private" networks
        to meet business communications needs, particularly data processing for
        repetitive commercial transactions (such as in retail or consumer
        businesses, banks and other financial institutions, brokerages, etc.),
        e-mail, voice, and even business television and video teleconferencing
        applications. Private corporate networks can provide high performance
        and control and security for processing commercial transactions, as well
        as make available more bandwidth for transmission of graphics and video
        applications.

          Intranet and Internet. The Internet has become a major vehicle for
        economic and social activity enabling broad, global access to financial
        and business information, research material, and information on leisure,
        arts and general interest topics. Business uses of the Internet include
        communication within and among businesses, electronic commerce,
        advertising and merchandising. Internet usage has also led to increased
        demand for intranet services for corporate applications. Intranet
        servers are used for publishing information, processing data and data-
        based applications and collaboration among employees, vendors, and
        customers within a more private domain defined by the business.

          Information retrieval. Retail establishments and financial enterprises
        use data communications networks for retrieval of information stored on
        central computers. Companies with large scale advance reservation
        systems (hotels, travel and entertainment providers) use networks for
        reservations and information. Banks use data networks to verify account
        balances, process branch bank transactions and for automatic teller
        machines. Retail companies verify credit standing, update pricing
        information and gather inventory information.

          Image transmissions. Manufacturing, publishing, research and medical
        industries use dedicated communications networks for high-resolution
        image transmissions requiring large amounts of bandwidth.

     Future Demand for Networks.  Demand for data networks is expected to
     --------------------------
continue to grow.  Trends driving demand for increased data communications
include:

     .  increasing demand for data transmission in intra-business
        communications, and in particular the need for wide bandwidth,

     .  the growth in Internet and intranet traffic,

     .  continuing technological advancements leading to new bandwidth intensive
        applications,

     .  new licenses being awarded for new or existing technologies and
        deregulation that opens previously closed telecommunications markets,
        and

     .  increased use of video applications.

          Increasing Demand for Data Transmission in Intra-business
        communications; Need for Wide Bandwidth. The continuing rapid growth in
        the telecommunications markets reflects an increased demand for
        communications capacity for data communications. The number of
        transactions to be processed over the communications infrastructure has
        been steadily increasing. In addition, the shift from large host
        computers and centralized data network architectures to distributed PC
        and workstation based platforms has led to demand for private networks
        to establish and interconnect local (LAN) and

                                      84                    AVDATA INFORMATION
<PAGE>

     wide area (WAN) networks. As businesses expand and become geographically
     more diverse, the ability to link multiple locations within a single
     network becomes more important. A portion of the increased demand requires
     wide bandwidth and high speed data capacity for applications that rely
     heavily on graphics and result in traffic patterns that involve bursts of
     transmissions. There is also increasing demand for near-instantaneous
     response time and more reliable data transport. This demand has
     necessitated upgrades of corporate data networks to accommodate the high
     data transfer requirements of these applications.

        Internet and intranet services. There has been a significant increase in
     recent years in demand for networks to support intranets and extranets to
     distribute information within or outside of companies using the
     increasingly popular Internet protocols. This increase is expected to
     continue. Businesses also are increasingly using networks for "always on"
     access to the Internet for applications such as research, e-mail, data
     exchange, software and graphics, financial transactions and even voice
     communications. The utility of Internet services, which contain significant
     amounts of data and graphics requiring wide bandwidth, can be constrained
     by the lack of sufficient bandwidth in existing infrastructure. Even where
     infrastructure quality is high, the rapid growth of Internet usage
     continues to create network congestion. These trends are expected to
     continue, and efficient management of network bandwidth should become
     increasingly important.

        Continuing technological advancements. New technological advances have
     increased capacity and efficiency and lowered cost, thereby resulting in
     increases in demand. New software protocols and methodologies, such as
     frame relay, Asynchronous Transfer Mode (ATM), and others, have reduced
     transmission delays and improved use of available capacity. Improvements in
     routers and servers have enhanced the quality and efficiency of data
     networks.

        Grants of new licenses, deregulation. Over the past several years the
     United States and other countries have increased grants of
     telecommunications licenses and changed applicable rules to permit new
     competitors to provide facilities and services. The increased competition
     has reduced prices, thereby increasing demand, and has led companies to
     introduce new applications and features that need to be supported by
     complex data networks.

        Increased use of video applications. Demand for video applications has
     been growing and is expected to continue to increase. New technology and
     lower costs have increased demand for business television networks and data
     networks that included the large amounts of bandwidth needed for many video
     applications.

Network Solutions

          The significant growth in the use and complexity of data networks has
also led to significant growth in demand for overall network solutions.  The
need for network solutions arises from factors such as:

     .  the need to design and implement complex networks

     .  the difficulties of implementing networks that involve multiple vendors
        or technologies

     .  increasing demand for "one-stop shopping" for the overall network

     .  the increasing cost to businesses from failures of data networks,
        leading to greater willingness to spend capital on promoting efficient
        operation and reducing network downtime

          Need for Complex Network Design and Implementation. Over the last
     several years fiber optic cable has become prevalent in the United States,
     and additional fiber optic cable continues to be laid. Similarly, VSAT
     (Very Small Aperture Terminal) earth station systems can be installed and
     satellite bandwidth can be accessed from virtually any location within the
     geographic coverage of the satellites. However, implementation of an
     efficient terrestrial or satellite network to utilize these communications
     infrastructures requires planning and design to integrate functionally the
     components, particularly

                                      85                     AVDATA INFORMATION
<PAGE>

     when the network must reach many locations over long distances
     simultaneously, and involves specialized applications requiring specialized
     knowledge or skills or involves frame relay or other complex services. Many
     end users do not have sufficient expertise to plan and design these
     networks, and therefore outsource these services.

        Demand for "One-Stop Shopping" Network Solution. Data networks often
     involve multiple vendors and may even involve multiple technologies.
     Customers must obtain local telephone lines and long distance "private
     lines" or similar bandwidth services, and must install or connect routers,
     computer servers and other data equipment to successfully implement a wide-
     area network. And wide area networks must interconnect with local area
     networks. As a result, customers who try to design and implement their own
     data networks must deal with a multiple vendor environment. Once the
     networks are installed, until a problem is diagnosed and a vendor takes
     responsibility for restoration of service, customers may not know where to
     turn when an outage occurs. As a result, demand is developing (particularly
     from companies for whom network failure is extremely costly), for a single
     provider who will design and implement the entire network, deal with the
     multiple vendors on the customer's behalf and be responsible for monitoring
     the network, diagnosing the cause of any outage and following through
     directly or with the responsible vendor to have service restored.

        Greater Cost of Network Failures.  As the usage of data networks has
     grown, customers use their networks for more "mission critical"
     applications, and a premium is being placed on the speed with which service
     can be restored.  Customers that face significant costs or loss of business
     upon network failure therefore have shown greater willingness to spend
     capital on promoting efficient operation and reducing network downtime.
     Improving network availability often requires continuous network monitoring
     and management.  Customers may not have the capability of performing this
     activity internally, particularly on large wide area networks, and
     individual vendors of portions of the network often cannot or do not offer
     to monitor or manage the elements of the network provided by others.  A
     network solutions provider can monitor a customer's entire network from
     end-to-end, perform diagnostics and then dispatch maintenance and other
     related services to speed network restoration.

          As the demand for network solutions has grown, networks and network
operations have become increasingly complex.  This has led to a growth in
outsourcing of the design, implementation and especially the ongoing operation,
monitoring and management of data networks.


AvData Products and Services

          AvData provides satellite and terrestrial-based network solutions.
AvData's offerings include the network design, equipment and bandwidth
provisioning, integration and on-going network operation. AvData also developed
network operations and management products for customers that already have
networks in place or are putting in new or upgraded networks or for facilities
providers that wish to offer a "one-stop shopping" network solution. AvData can
provide as much or as little of the total network solution as the customer
specifies, but almost always provides the ongoing monitoring and management of
the nodes on the network.

Satellite and Terrestrial-Based Network Solutions.
- --------------------------------------------------

          Consult.

          AvData designs data networks for its customers. AvData's engineers
analyze the customer's requirements, measure traffic flow, identify network
problem areas and other relevant factors, and design a network that will meet
the customer's needs. The new network often represents an upgrade of a prior
network that no longer adequately serves the customer's needs. Depending upon
the number and locations of sites, nature of the data traffic, presence or
absence of fiber optic connectivity at the sites, customer preferences and
budgets, and other factors, the network design may be for a satellite or
terrestrial network or a combination of both technologies. Although historically
a substantial portion of the networks installed by AvData have been

                                      86                     AVDATA INFORMATION
<PAGE>

satellite networks, in recent years most  new networks provided by AvData have
been terrestrial.  AvData works with the customer to refine and finalize the
design so it best meets the customer's objectives.

          Integrate.

          Once AvData has finalized the design, AvData procures and installs the
required equipment, obtains the terrestrial or satellite capacity under a lease
or service contract, and provides network operations and monitoring for the
customer over the contract term. The customer purchases the equipment, and
installation services from AvData, resulting in one-time revenue, and pays
AvData a monthly service fee which covers the capacity cost and compensates
AvData for the network operations and monitoring. In certain situations, the
customer may already own or choose to purchase a portion of the installation
services and bandwidth directly from another vendor. AvData's project engineers
manage the network installation, assisted by senior network engineers who
specialize in implementation of particular types of networks or components (such
as routers or VSATs).

          Terrestrial Networks. AvData's terrestrial networks solutions include
frame relay circuits, routers, software and other products. Hardware is procured
from various manufacturers including Visual Networks, Nortel (formerly Bay
Networks), CISCO, Motorola and others. AvData obtains most of its circuits from
MCI WorldCom, but also uses other facilities providers including ITC/\DeltaCom
and Sprint. AvData generally leases the circuits directly and then provides
capacity to customers under long term contracts, generally three to five years,
and may offer options to extend the contract term or increase the amount of
capacity available for the network. AvData seeks to match its lease term for the
circuits as closely as possible to the terms of its contract with the customer,
so that AvData does not face economic exposure, if the customer does not extend
the contract upon expiration. To date AvData generally has not experienced any
difficulties in acquiring circuits at a reasonable cost. AvData seeks to
aggregate its circuit acquisitions to obtain better pricing, but the particular
circuits needed depends on the number and location of sites in the customer's
network. The use of multiple vendors, diverse routing and alternative
technologies to provide back up solutions, allows AvData some ability to restore
service in the event of a catastrophic terrestrial facility failure.

          Satellite Networks. AvData's satellite networks include satellite
capacity, earth station equipment, and other products.

               Satellite Capacity. AvData obtains most of its domestic satellite
               ------------------
capacity from GE American Communications, Loral and PanAmSat, three of the
largest operators of satellites with coverage of the United States. AvData
generally leases this capacity, which resides on four different satellites,
directly from the satellite operator. All of the capacity used by AvData is Ku-
band. AvData provides capacity to customers under long term contracts, generally
three to five years, and may offer options to extend the contract term or
increase the amount of capacity available for the network subject to the pricing
and availability of additional satellite capacity at that time. AvData seeks to
match its lease with the satellite operator as closely as possible to the terms
of its contracts with its major customers so that AvData is not exposed if the
customers do not extend the contract upon expiration, although AvData does keep
a small additional amount of satellite capacity in reserve to meet growth
requirements within its customer base. To date, AvData generally has not
experienced any difficulties in acquiring capacity at a reasonable cost, but
there is no assurance that satellite failures or damage from meteor storms or
other natural events, or increases in the demand for satellite capacity in the
marketplace, will not create an unexpected shortage in the supply of capacity in
the future and increase capacity prices. The use of capacity on four different
satellites gives AvData some ability to restore service if a catastrophic event
makes one satellite unavailable for service. AvData's larger customers operate
on two satellites or retain back-up capacity on a second satellite to protect
critical network applications in the event of a failure.

          VSATs and Software.  AvData principally resells VSAT equipment and
          ------------------
utilizes related software to manage the equipment, all manufactured by NEC, for
whom AvData serves as the largest United States distributor. NEC offers a line
of high-performance VSAT systems and related equipment and software for one-way
and two-way data transmissions, including two-way paging. The VSATs offer high
network reliability, a flexible modular architecture, with rapid response time,
high throughput, and an advanced network management system. The software
accommodates multiple network protocols and methodologies, including TCP/IP,
SNA/SDLC, X.25 and various others. For certain customer requirements,
particularly those requiring

                                      87                     AVDATA INFORMATION
<PAGE>

high network availability, VSAT technology can be a better solution than
terrestrial alternatives. To date, AvData generally has not experienced any
difficulties in acquiring VSAT equipment and related software, and believes that
the VSAT network products it resells continue to be competitive both technically
and economically.

          Operate.

          AvData provides network operations and monitoring services for its
customers. AvData emphasizes these services in marketing to potential customers,
and believes that the services represent a key portion of AvData's network
solutions. To date, AvData has experienced a high rate of renewal upon
expiration of contracts for these services. Some customers, who own and operate
their networks, contract with AvData for ongoing maintenance and support
services, for which they pay monthly fees. AvData provides maintenance and
support to customers under long term contracts, generally three to five years,
and may offer options to extend the contract term or change the type of support
services being provided.

          AvData currently offers three levels of network operations and
monitoring services: basic, advanced and premium.

          Basic service includes reactive network monitoring and customer
notification.  The customer then resolves the problem internally or with the
relevant carrier or vendor.  AvData provides the customer with basic reports on
network availability.

          Advanced service still involves reactive network monitoring, but adds
diagnosis, dispatch of repair teams to any location in the United States, and
escalation of the problem with the relevant carrier or vendor by AvData on the
customer's behalf until the problem is resolved. Advanced service includes
reporting on network availability and a periodic network review.

          Premium service involves comprehensive, proactive network management
to detect anomalies before they result in network failures or outages. Through
application of additional resources, AvData offers more rapid trouble isolation
and resolution of network problems. AvData manages the customer's carriers and
vendors to escalate problems for resolution. Premium service also gives
customers comprehensive network reporting, including network availability,
analysis regarding congestion on the network, burst patterns and access issues,
and other matters. Customers receive a periodic network review.

          In providing network operations and monitoring services, AvData
focuses on customer satisfaction, and believes that its high quality of service
attracts customers. AvData conducts frequent internal reviews of service
delivery to improve its level of service. It also uses a monthly, company-wide
bonus program based on customer satisfaction to motivate employees to provide
high quality service.

          AvData provides network operations and monitoring services principally
through its network operations center ("NOC") in Atlanta, which connects to
network monitoring devices installed at various points on each customer's
network . The NOC operates 24 hours of every day of the year. AvData's network
analysts perform continuous network surveillance, responding to any alarms from
the monitoring devices, alerting the customer of problems and commencing
diagnosis and escalation of any problems. Network engineers perform more complex
diagnosis, interface with the responsible vendor, and arrange (where
appropriate) for repair work, focusing on restoration of service (if service has
been interrupted). AvData emphasizes the skills of its personnel in diagnosing
network problems, sometimes avoiding outages before they occur, and in working
with the responsible vendor to ensure speedy restoration.

Network Operations Services.
- ----------------------------

          AvData has developed network operations and management services for
customers that already have networks in place or are putting in new or upgraded
networks or for facilities providers that include this service in the products
and services they provide for their own customers. AvData believes this service
is attractive to customers seeking to outsource network operations, especially
those for whom network failure is extremely costly. AvData also believes this
service is attractive to facilities providers seeking to offer a "one-stop
shopping" network solution. This service takes advantage of AvData's resources
and skills, and leverages its

                                      88                     AVDATA INFORMATION
<PAGE>

investment in its NOC and other facilities. AvData charges a monthly service fee
for the network management services, and seeks long term contracts for the
service.

Other Products and Services.
- ----------------------------

          AvData provides a variety of related products and services to
customers, including network expansion (which may include additional equipment
and terrestrial or satellite capacity), additional network support services
(such as help desk operations or after-hours monitoring services), LAN
monitoring and network consulting services (including network design and
analysis services).

Sales and Marketing

          AvData uses both direct and indirect sales channels to market its
products and services. AvData's sales and marketing focuses principally on
customers with headquarters in the southeastern United States. AvData primarily
markets its services through direct sales for larger networks, but uses a
combination of direct and indirect sales channels for distribution of its
network management services to large and small networks.

          In marketing its services, AvData emphasizes the quality of its
network operations and monitoring services, especially to those for whom network
failure is extremely costly. AvData also highlights its ability to serve the
customer as a full service provider that is responsible for the end-to-end
network implementation, including network design, assembly of all network
components (including terrestrial or satellite capacity, routing or VSAT
equipment and software), network customization, installation, and network
operation and monitoring. AvData thereby provides the customer with a single
point of contact for its entire network.

          Direct Sales. AvData has three direct sales employees that sell its
products and services, primarily in the southeastern United States. These
network sales often are substantial in size and involve a long-term complex
sales process. AvData is currently expanding its sales force in order to sell
network operations and monitoring services directly to larger customers.

          AvData also has four account managers who serve as the primary
contacts for existing customers. The network implementation and adjustments and
the ongoing network operations and monitoring services that AvData provides
require a significant amount of customer interaction, and for this reason AvData
considers its account managers a critical part of the sales team. These account
managers are also responsible for responding to existing customers who have new
requirements for network expansions, new technology and other growth
requirements.

          Indirect Sales Channels. AvData also sells network operations and
monitoring services through distribution arrangements with ITC/\DeltaCom and
other companies in the United States that together employ approximately 475
sales representatives. These companies include AvData's services as part of the
products and services sold by these companies to their customers. These
distribution companies are also existing providers to many of AvData's target
customers, that makes marketing easier and increases awareness of customer
needs. AvData has two sales employees that are responsible for managing the
indirect sales activities.

Customers and Backlog

          Customers. The majority of AvData's customers are medium-sized
companies with businesses ranging from wireless communications providers to
retailers, bankers, manufacturers, distributors and pipeline companies. In
general, networks for these customers range from approximately 20 to 400 sites,
with an average of approximately 100 to 150 sites and a few AvData customers
that have data networks considerably larger than this range.


          Some of AvData's largest customers include PageMart Wireless (a
national paging company that has approximately 2,000 sites in the United States)
and Motion Industries (with over 300 sites). PageMart Wireless, which holds
nationwide narrowband PCS licenses, uses the network obtained from AvData for
its nationwide two-way messaging business. This network also carries PageMart's
traditional one-

                                      89                     AVDATA INFORMATION
<PAGE>

way paging traffic. Motion Industries is a nationwide industrial products
distributor, who use their network to locate and track products in their
warehouses nationwide.

          Although AvData has numerous customers, AvData's revenues have been
dependent on large contracts. PageMart Wireless accounted for approximately 72%
of AvData's revenues in 1998, during which over 1800 sites of the PageMart
Wireless network were installed. Motion Industries also accounted for over 10%
of AvData's revenues in 1997 and 1996. AvData is largely dependent upon these
customers, particularly PageMart, and its recurring and non-recurring revenues
would be adversely affected if AvData lost these accounts.

          Recurring Revenue. At December 31, 1998, AvData had recurring revenue
contracts amounting to approximately $10 million, as compared to approximately
$8 million at December 31, 1997. The majority of the recurring revenue consists
of contracts under which AvData provides terrestrial circuits or satellite
capacity and network operations and management services, and the customers pay
for network services on a monthly basis over the term of the contract. These
contracts generally have terms between three to five years.

Network Operations and Service

          AvData has its network operations center at its corporate headquarters
in Atlanta from which it performs network operations and monitoring services and
customer support functions 24 hours a day, every day of the year. AvData also
provides satellite shared hub services from the NOC using multiple satellite
earth stations located at those premises, and AvData also has a shared hub
facility in Greensboro, North Carolina.

          The Atlanta network operations center also allows AvData to perform
diagnostic procedures on customer networks and to reconfigure networks to alter
data speeds, change frequencies and provide additional bandwidth. The hardware
at the NOC and shared hub facility include significant redundancy, and the
Atlanta and Greensboro sites provide some back-up support for each other. AvData
also has access to back-up sites on vendor or customer premises in the
Birmingham, Alabama; Washington, DC; and Chicago areas.


The AvData Strategy

          AvData's strategy to maintain and increase revenue is based on the
following elements:

             .  Provide network solutions, particularly network operation and
                management that are responsive to customers' needs
             .  Develop base of recurring revenues
             .  Continue to support multiple vendors for terrestrial and
                satellite networks

             .  Leverage network operations services through direct and indirect
                sales

          Provide Network Solutions, Particularly Network Operation and
Management. AvData targets the needs of medium-sized businesses for reliable and
high quality data networks. AvData emphasizes its network solutions and its
ability to design the network to meet the customer's needs, implement the
network and then ensure a high standard of reliability through network operation
and monitoring. AvData offers its customers a single point of contact and high
quality of service throughout the network. AvData believes this approach is
attractive to potential customers looking to outsource network operations,
especially those for whom network failure is extremely costly.

          Develop Base of Recurring Revenues. As part of its network solutions,
AvData enters into long term contracts with its customers for terrestrial
circuits or satellite capacity and for network operation and monitoring
services. These services yield a monthly service fee, often on a per site or per
node basis. To date, customer renewal rates have been fairly high. As of March
31, 1999, AvData had an installed base of approximately 3,500 revenue-producing
sites in North America and the Caribbean. This generates a stream of recurring
revenue for AvData. AvData's recurring revenue has increased every year and
averaged more than 20% per year growth.

                                      90                     AVDATA INFORMATION
<PAGE>

          Continue to Support Multiple Vendors for Terrestrial and Satellite
Networks.  AvData uses both satellite and terrestrial capacity to provide
connectivity for its customers, and acquires capacity from multiple vendors when
required to satisfy customer demand.  AvData believes that the use of multiple
vendors and diverse routing reduces exposure to failure of a single
communications facility, since at least critical portions of customer traffic
often can be relocated from a failed facility to a functioning facility of the
same or another vendor.  AvData believes that a strategic relationship with a
facilities owner, such as through the merger with ITC/\DeltaCom, will reduce its
facilities cost and make AvData's total network solutions offerings more cost
competitive.

          Leverage Network Operations Services through Direct Sales and Indirect
Sales.  To capitalize on outsourcing trends and increased demand for a "one-stop
shopping" network solution, AvData has introduced network operations and
management services that AvData believes will be attractive to customers seeking
to outsource network operations, especially those for whom network failure is
extremely costly.  AvData believes these services also will be attractive to
facilities providers seeking to offer a "one-stop shopping" network solution to
their own customers. These services are already distributed by ITC/\DeltaCom and
three other companies.

COMPETITION

          The data communications industry is highly competitive and the level
of competition is increasing.  As a provider of data networks in the United
States, AvData competes with a large number of telecommunications service
providers, including major terrestrial carriers and satellite and VSAT providers
who offer data networks to their customers.  AvData has encountered strong
competition from major established terrestrial carriers such as AT&T, the
regional Bell operating companies, MCI/WorldCom, Sprint and others.  These
carriers offer technological solutions for customer networks, including ISDN
lines and frame relay networks.  On the satellite side, AvData competes with
Hughes Network Systems and Gilat. These competitors have significant
advantages, including long-standing customer relationships, significantly
greater financial resources, and control (directly or through affiliations) over
terrestrial and satellite facilities and manufacture of VSAT equipment for use
in data networks.  The increasingly competitive environment has put pressure on
prices and margins.  AvData also competes with some bandwidth facilities
providers and there can be no assurance that these competitors will continue to
sell capacity to AvData at a rate that will enable AvData to compete effectively
for these terrestrial facilities, although this would not affect operation and
monitoring services.  AvData emphasizes the quality and reliability of its
networks, arising from its network operation and monitoring, to compete against
these large facilities providers.

          AvData also faces competition from companies that provide network
operations and monitoring, particularly those located in the southeastern United
States.  These companies include NetSolve, Comdisco, and BellSouth teamed with
EDS.

          AvData expects to become more competitive after the merger.  See "The
Merger -- Recommendation of AvData's Board of Directors and Reasons for the
Merger."  However, these competitive advantages may not be realized unless and
until functional combination of the companies occurs.  See "Risk Factors --
ITC/\DeltaCom may not be able to successfully integrate AvData into its
operations."


REGULATION

          The telecommunications environment is highly regulated.  As a provider
of communications services in the United States, AvData is subject to the
regulatory authority of the United States, primarily the Federal Communications
Commission (the "FCC").  All entities that use radio frequencies to provide
communications services in the United States are subject to the jurisdiction of
the FCC under the Communications Act of 1934.  The Communications Act requires
that the operation of satellite earth station facilities, including VSAT systems
such as those owned by AvData, be authorized under licenses issued by the FCC.
Major changes in earth station or VSAT operations require modifications to the
FCC licenses, which must also be approved by the FCC.  AvData generally obtains
licenses for the earth station facilities used in its

                                      91                     AVDATA INFORMATION
<PAGE>

customers' networks. The FCC generally grants earth station and VSAT licenses
(such as those held by AvData) for ten year terms. The FCC generally renews such
licenses routinely, but there can be no assurance that AvData's licenses will be
renewed at their expiration dates or that these renewals will be for full terms.

          The changing policies and regulations of the FCC will continue to
affect the telecommunications industry.  AvData cannot predict the impact that
these changes will have on its business.

Human Resources

          As of March 31, 1999, AvData had 72 full-time employees.  Of its total
work force, six are senior managers, thirty-two are in engineering and
operations (including network operations and monitoring), twenty are in
marketing, sales and sales support, six work in technical development activities
and eight are devoted to general and administrative activities.  More than 90%
of AvData's full-time employees will become employees of ITC/\DeltaCom if the
merger is consummated.

Properties

          AvData's principal offices comprise approximately 19,000 square feet
located in Atlanta.  These offices house not only AvData's personnel, but also
contain AvData's network operations center.  The lease covering these facilities
expires in 2001.  AvData also has rights to use a customer's space in
Greensboro, North Carolina, where it operates a shared hub facility.

Legal Proceedings

          There are no material legal proceedings pending or, to the knowledge
of AvData management, threatened against AvData.  AvData is a party to various
regulatory proceedings incidental to its business.  To the knowledge of AvData
management, none of these proceedings is material to AvData.

                                      92                      AVDATA INFORMATION
<PAGE>

                       SELECTED FINANCIAL DATA OF AVDATA

     Selected financial data for AvData is presented in the table below and
should be read in conjunction with "AvData Management's Discussion and Analysis
of Financial Conditions and Results of Operations" and with AvData's financial
statements and related notes presented later in this prospectus and proxy
statement.  The summary historical statement of operations data for each of the
years ended December 31, 1994, 1995, 1996, 1997 and 1998 and the summary
historical balance sheet data for the years then ended, have been extracted from
those financial statements which have been audited by Arthur Andersen LLP,
independent public accountants.  The selected historical statements of
operations data for the three months ended March 31, 1998 and 1999 and the
historical balance sheet data as of March 31, 1999 have been derived from
AvData's unaudited consolidated financial statements and include, in the opinion
of management, all adjustments (consisting of only normal recurring adjustments)
necessary to present fairly the data for such periods.  Results for the three
month period ended March 31, 1999 are not necessarily indicative of the results
that may be expected for the full fiscal year.

<TABLE>
<CAPTION>
                                                                                                         Three months ended@@
                                                         Year Ended December 31,                              March 31,
                                      --------------------------------------------------------------  -------------------------
                                        1994         1995         1996         1997         1998          1998         1999
                                        ----         ----         ----         ----         ----          ----         ----
                                                                                                      (Unaudited)   (Unaudited)
- -------------------------------------------------------------------------------------------------------------------------------
<S>                                   <C>          <C>         <C>          <C>          <C>          <C>           <C>
Statement of Operations Data:
Sales and service revenue             $6,800,415   $9,252,374  $16,247,438  $13,529,639  $30,182,711  $ 5,221,260   $5,206,842
                                      ----------   ----------  -----------  -----------  -----------  -----------   ----------
Cost of sales and service revenue      2,937,660    4,084,960    8,859,881    6,612,267   18,795,435    3,114,364    2,925,944
                                      ----------   ----------  -----------  -----------  -----------  -----------   ----------
Operating expenses:
 Operations and engineering              777,639    1,151,754    1,797,373    2,129,230    2,752,167      610,833      712,768
 Sales and marketing                   1,202,439    2,011,951    2,622,972    2,319,025    3,231,050      604,310      729,607
 General and administrative              876,180    1,062,409    1,462,074    1,325,614    2,787,306      497,193      775,536
 Depreciation                            636,931      685,975      759,498      887,452    1,085,381      272,377      291,919
                                      ----------   ----------  -----------  -----------  -----------  -----------   ----------
  Total operating expenses             3,493,189    4,912,089    6,641,917    6,661,321    9,855,904    1,984,713    2,509,830
                                      ----------   ----------  -----------  -----------  -----------  -----------   ----------
Operating income                         369,566      255,325      745,640      256,051    1,531,372      122,183     (228,932)
Interest income, net                      89,216       84,546      148,357      151,824      171,386       38,762       30,485
                                      ----------   ----------  -----------  -----------  -----------  -----------   ----------
Net income                            $  458,782   $  339,871  $   893,997  $   407,875  $ 1,702,758  $   160,945   $ (198,447)
                                      ==========   ==========  ===========  ===========  ===========  ===========   ==========
</TABLE>

<TABLE>
<CAPTION>
                                                                December 31,                           March 31,
                                      --------------------------------------------------------------  -----------
                                        1994         1995         1996         1997         1998          1999
                                        -----        ----         ----         ----         ----          ----
                                                                                                      (Unaudited)
- ------------------------------------------------------------------------------------------------------------------
<S>                                   <C>          <C>         <C>          <C>          <C>          <C>
Balance Sheet Data:
Current assets                        $4,086,629   $5,390,510  $ 7,970,926  $ 7,065,656  $ 9,224,548  $ 8,030,578
Total assets                           6,376,992    8,038,644   11,626,245   11,529,125   14,343,165   12,939,934
Current liabilities                    1,834,159    2,692,544    5,100,405    3,777,672    5,253,298    4,062,163
Long-term liabilities                          0      463,396      749,013    1,409,671      936,655      902,478
Stockholders' equity                   4,542,833    4,882,704    5,776,827    6,341,782    8,153,212    7,975,293
</TABLE>

<TABLE>
<CAPTION>
                                                                                                         Three months ended
                                                                                                      -------------------------
                                                  Year ended December 31,                                     March 31,
                                      --------------------------------------------------------------  -------------------------
                                        1994         1995         1996         1997         1998         1998          1999
                                        ----         ----         ----         ----         ----         ----          ----
                                                                                                      (Unaudited)   (Unaudited)
- -------------------------------------------------------------------------------------------------------------------------------
<S>                                   <C>          <C>         <C>          <C>          <C>          <C>           <C>
Other Financial Data:
Cash flows provided by
   operating activities               $1,496,986   $2,468,889  $ 1,874,480  $ 1,051,590  $ 1,504,210  $  139,344    $    51,906
Cash flows used in
   investing activities                  888,240    1,059,813    1,768,356    1,606,602    1,340,529     182,529         45,661
Cash flows provided by
   financing activities                    3,750            0          126      297,278       53,898      (9,620)        11,660
</TABLE>

                                      93                      AVDATA INFORMATION
<PAGE>

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

     The following discussion and analysis should be read in conjunction with
AvData's Financial Statements and notes thereto included elsewhere in this
prospectus and  proxy statement.


   Overview


          AvData is a provider of satellite and terrestrial-based network
solutions, primarily to mid-size companies based in the southeastern United
States and to wireless messaging and cellular operators nationwide.  AvData
designs, implements and operates private communications networks that carry high
speed two-way data, Internet, intranet, voice, paging and other digital
transmissions.

          AvData earns non-recurring and recurring revenues from sales of its
network solutions and ongoing network services that it provides.  AvData derives
non-recurring revenue from customer purchases of network design, equipment,
software and installation services.  AvData's recurring revenues come from
monthly service fees for capacity (whether terrestrial or satellite) and for
network operations and maintenance.

          The large majority of AvData's non-recurring revenues come from sales
of equipment for new network or significant network upgrades or expansions.
AvData also realizes revenues from (1) sales of replacement equipment or
additional equipment for moves and changes, (2) sales of post-installation
software upgrades and (3) one-time services (such as network analysis or
consulting).  The charges to customers for network design, equipment, software
and installation services vary principally with the number of sites, but also
with the types of technologies employed.

          The charges to customers for capacity and for network operations and
monitoring vary with the amount of capacity, the length of the contract, the
types of network operations and monitoring and the extent of other services
needed by the customer to implement and operate the network.  AvData often
charges for network operations and monitoring on a per node, or per device
monitored basis.  As of March 31, 1999, AvData had an installed base of
approximately 3,500 revenue-producing sites in the United States and in other
locations in North America and the Caribbean.

          In the majority of AvData's network sales, the customer purchases
equipment, software and installation services from AvData, which AvData
integrates and makes operational.  AvData records revenue when the network or an
individual site is accepted by the customer.  For capacity and for network
operations and monitoring, customers pay monthly fees in advance, which are
recognized as service revenues as the services are provided.  AvData's cost of
sales and services revenue includes the cost of system design, third party
equipment, software and installation, system integration, and third party
capacity (whether terrestrial or satellite).


   Unaudited Results of Operations

March 31, 1999 Compared to March 31, 1998

          Total sales and service revenue for the quarter ended March 31, 1999
was $5,206,842, materially unchanged from the first quarter 1998 revenue of
$5,221,260; however, the product mix of hardware sales and services provided
shifted toward recurring revenue services provided and away from non-recurring
hardware sales.  Recurring revenue was 48.3% of total revenue in the first
quarter of 1999, in comparison to 38.2% in the corresponding quarter of
1998.

                                      94                      AVDATA INFORMATION
<PAGE>


          Total cost of sales for the quarter ended March 31, 1999 was
$2,925,944, a decrease of $188,420 (or 6.1%) compared to a total first quarter
1998 cost of sales of $3,114,364. Cost of sales as a percentage of revenue
decreased from 59.6%, for the first quarter of 1998, to 56.2% for the similar
period of 1999. The decrease in cost of sales was primarily due to a change in
the product mix of delivered goods and services. Recurring revenue represented a
larger percentage of total revenue for the first quarter of 1999 (48.3%), in
comparison to the similar period in 1998 (38.2%). The sales mix shifted from
hardware sales and other non-recurring revenue products and services, to
recurring revenue products and services, which return a higher gross
margin.

          Total operations and engineering expenses increased 16.7% from
$610,833 for the first quarter 1998, to $712,768 in the corresponding period in
1999.  The increase over the first quarter of 1998 reflects the addition of new
employees in both operational and engineering positions.  Recruiting,
compensation, and training expenses, required to attract and retain highly
skilled technical talent, continued to rise due to the tight labor market for
these skilled professionals.

          Sales and marketing expenses were $729,607 for the first quarter of
1999.  This represents an increase of  $125,297 (20.7%) over the $604,310
expense for the first quarter of 1998.   This additional expense was primarily
the result of the addition of a senior sales executive and a planned increase in
the number of sales force personnel intended to expand AvData's sales and
marketing efforts.

          General and administrative expenses were $775,536 the first quarter of
1999 compared to expenses of $497,193 in the similar period for 1998.  This
represents an increase of $278,343 (or 56.0%).  The change from the first
quarter of 1998 reflects increases in operating taxes and regulatory cost
accruals, and compensation costs due to additional personnel.

          Depreciation expenses were $291,919 the first quarter of 1999,
representing an increase of $19,542 (or 7.2%) over the 1998's first quarter
depreciation expense of $272,377.  This increase reflects the additional
depreciation associated with capital assets purchased in 1998.

          Net interest income decreased $8,277 or 21.4% in the first quarter of
1999 to $30,485, in comparison to the first quarter of 1998's interest of
$38,762.  This decrease is primarily due to lower yields from cash invested in
cash equivalents.

   Results of Operations

December 31, 1998 Compared to December 31, 1997

          Total sales and service revenue in 1998 was $30,183,000, an increase
of $16,653,000 (or 123.1%) as compared to total 1997 revenue of $13,530,000.
The increase in revenue in 1998 was primarily attributable to an unusually large
backlog from a single customer of approximately $19 million of network equipment
sales, installation and integration services at the beginning of 1998, which was
delivered during the year.  The backlog had grown as a result of delays in the
customer's network roll-out stemming from delays by the customer's other
suppliers of significant infrastructure equipment and software, which interface
with AvData-furnished equipment.  Of that backlog, AvData delivered
approximately 93% and recognized approximately $17.7 million in 1998 as revenue.
The significant increase in 1998 revenue was partially offset by a reduction in
revenues of approximately $1.1 million resulting from the expiration in 1997 of
a multi-year sales and marketing arrangement with a major supplier.  Although
AvData's recurring revenues have been increasing and AvData believes its
recurring revenues will continue to increase in the future, AvData's non-

                                      95                      AVDATA INFORMATION
<PAGE>

recurring revenues are expected to decline in 1999 reflecting delivery of the
backlog under the large customer contract in 1998.

          Total cost of sales and service revenue in 1998 was $18,795,000, an
increase of $12,183,000 (or 184.3%) compared to total cost of sales in 1997 of
$6,612,000.  This increase in cost of revenue was due primarily to the increase
in total revenues for the year resulting from the hardware sales to a single
customer, as discussed above.  Cost of revenue as a percentage of revenue
increased in 1998 to 62.3% compared to 48.9% in 1997, also due principally to
the large sale to a single customer.  Since a large portion of the sale
consisted of lower margin hardware, it changed AvData's product mix, caused
overall costs to increase and the resulting gross margins to decrease as a
percentage of revenue.  The fact that there was no longer high gross margin fee
revenue in 1997 from a major supplier for sales and marketing services, also
caused a significant reduction in AvData's 1998 margins.  In addition, AvData
suffered significant, unexpected direct costs required to recover certain of its
nationwide networks following the catastrophic failure of the PanAmSat Galaxy IV
satellite in May 1998.

          Total operations and engineering expenses were $2,752,000, an increase
of $623,000 (or 29.3%) as compared to the total operations and engineering
expenses in 1997 of $2,129,000.  This expense consists primarily of salaries,
other payroll expenses and training.  The increase in 1998 reflects the addition
of new employees in both operational and engineering positions to support the
revenue growth.  Recruiting, compensation, and training expenses required to
attract and retain highly skilled technical talent rose as compared to prior
years due to the tight labor market for these professionals.  Significant,
unexpected, indirect expenses associated with the Galaxy IV satellite failure
contributed to the increased expense in 1998.  Nevertheless, operations and
engineering expenses declined as a percentage of revenue to 9.1% in 1998 from
15.7% in 1997, since the hardware portion of the large sale to a single customer
did not require a proportional increase in operations and engineering personnel.
AvData expects operating and engineering expenses to decline in 1999, but
increase as a percentage of revenues.

          Sales and marketing expenses totaled $3,231,000 during 1998, an
increase of $912,000 (or 39.3%) as compared to $2,319,000 in 1997.  Sales and
marketing expenses increased primarily due to growth in the number of employees
during 1998 which increased payroll and related expenses.  AvData also increased
new service introductions and related marketing efforts in 1998.  Further, as a
result of increased revenues, commission-related expenses increased as sales
increased, and more employees participated in sales based incentive programs.
Nevertheless, sales and marketing expenses declined as a percentage of revenue
to 10.7% in 1998 as compared to 17.1% in 1997, since sales and marketing
employees did not increase proportionately with revenues.  AvData expects sales
and marketing expenses to decline in 1999, but increase as a percentage of
revenues, if AvData does not replace the large sale that occurred in 1998.
However, since AvData intends to build up its sales of new products in 1999,
AvData expects that the decline in expense will be comparatively small (and that
the increase as a percentage of revenue will be comparatively large) to the
charges in 1998.

          General and administrative expenses increased to $2,787,000 in 1998,
an increase of $1,461,000 (or 110.2%) from the total expense of $1,326,000 in
1997.  The increase in general and administrative expense primarily resulted
from the hiring and recruiting of new employees throughout the year, as well as
utilizing the services of temporary employees to aid in processing the
significantly increased transaction volume in 1998.  The Galaxy IV failure
required unusually high temporary staffing levels operating 24 hours a day in
order to recover the affected nationwide networks as quickly as possible.
Consistent with the revenue growth discussed above, incentive compensation
payments increased.  Other increases in general expenses were also related to
the increase in the volume of business compared to 1997.  General and
administrative expenses stayed fairly consistent as a percentage of revenue,
declining to 9.2% in 1998 from 9.8% in 1997.  AvData expects general and
administrative expenses to decline in 1999.

                                      96                      AVDATA INFORMATION
<PAGE>

          Depreciation expense increased by $198,000 to $1,085,000 in 1998
compared to depreciation expense of $887,000 in 1997.  The increase primarily
results from additional depreciation related to capital expenditures of
$1,341,000 in 1998 and $1,607,000 in 1997.  These investments were required to
support the rapidly increasing size of networks operated by AvData.

          Operating income increased $1,275,000 to $1,531,000 in 1998 from
$256,000 in 1997.  As a percentage of revenues, operating income improved to
5.1% of revenues from 1.9% of revenues in 1997.  Operating margin increased
primarily because of the increased revenues from AvData's largest customer, as
discussed above.

          Net interest income increased $19,000 or 12.5% to $171,000 in 1998
from $152,000 in 1997.  The increase in interest income was primarily
attributable to increased cash balances generated from operations and invested
in cash equivalents.

December 31, 1997 Compared to December 31, 1996.

          Total sales and service revenue in 1997 was $13,530,000, a decrease of
16.7% or $2,717,000 as compared to the 1996 total sales and service revenue of
$16,247,000.  The decrease in total revenue in 1997 was due primarily to market
delays stemming from the failure of suppliers of other significant network
infrastructure and software to meet their delivery commitments to large AvData
customers, causing overall system roll-outs to be stalled.  However, late in
1997, PageMart, AvData's largest customer, was able to procure alternative
infrastructure and eventually expedited the lagging delivery schedule, resulting
in significant orders for AvData which increased the equipment sales,
installation and recurring services backlog for AvData to more than $19 million
at year-end.  Additionally, revenues from a sales and marketing agreement with a
major supplier decreased from $1.6 million in 1996 to $1.1 million in 1997, a
decline of approximately $500,000.  This decrease in revenue was due to a
reduction in the sales and marketing support levels related to this agreement
from 1996 to 1997.

          Total cost of sales in 1997 was $6,612,000, which was a 25.4% decrease
compared to total cost of sales for 1996 of $8,860,000.  Cost of sales generally
decreased as a  percentage of total revenue to 48.9% for 1997 from 54.5% for
1996, increasing AvData's gross margin percentages from 45.5% in 1996 to 51.1%
in 1997.  This margin improvement resulted from the higher profitability of the
product mix despite the decreased revenue levels.

          Total operations and engineering expenses were $2,129,000 and
$1,797,000 in 1997 and 1996, respectively.  Operations and engineering expenses
increased $332,000 (or 18.5%) in 1997.  Expenses increasing in 1997 include rent
expense and expenses that related to a large customer project.  Although
revenues declined because of the lagging delivery schedule for the large
customer, AvData increased its personnel to support test and evaluation steps in
the project that were intended to help the customer get its other vendors back
on schedule.

          Sales and marketing expenses totaled $2,319,000 during 1997, a
decrease of $304,000 (or 11.6%) as compared to 1996.  In 1997, AvData adopted a
narrower market focus and accordingly reduced both public relations expenses and
expenses relating to tradeshow activity.  There was also a decrease in
commission expense related  to the decrease in sales volume  compared to the
prior year.

          General and administrative expenses decreased to $1,326,000 in 1997, a
reduction of $136,000 (or 9.3%) from the total expense of $1,462,000 in 1996.
General and administrative expenses decreased due to a reduction in
discretionary spending associated with the decreased revenue levels in 1997.
Expenses that decreased from 1996 included incentive based compensation,
communications expense, total salaries and training.

          Depreciation expense increased by $128,000 or 16.9% in 1997 to
$887,000 from $759,000 in 1996.  This increase is largely due to the
depreciation of additional fixed assets

                                      97                      AVDATA INFORMATION
<PAGE>

purchased in 1997, as well as assets purchased late in 1996 that were
depreciated for a full year in 1997.

          Operating income decreased $490,000 to $256,000 in 1997 from $746,000
in 1996.  As a percentage of revenues, operating income decreased to 1.9% of
revenues from 4.6% of revenues in 1996, since in 1997 expenses were increased to
support the roll-out of the large scale network expected in late 1997 that did
not materialize until 1998.

          Net interest income increased $4,000 or 2.7% to $152,000 in 1997
compared with $148,000 in 1996.  The slight increase in interest income in 1997
was comparable to the interest earned in 1996, as there were no significant
changes in the amount of investments earning interest.


   Liquidity and Capital Resources

          AvData has historically had sufficient operating cash flow to cover
any increase in expenses necessary to grow AvData.  However, AvData also
maintains a $750,000 bank line of credit secured by network equipment, computer
equipment and software at the prime rate with an initial maturity of one year
and renewable for one-year intervals upon maturity.  As of December 31, 1998 and
1997, no amounts were outstanding on this line of credit.

March 31, 1999 Compared to March 31, 1998 (Unaudited)

          In the first quarter of 1999 cash provided from operations was $51,906
compared to cash provided from operations of $139,344 in the first quarter of
1998.  Cash used by investing activities was $45,661 and $182,529 for the first
quarters of 1999 and 1998 respectively.  The reduction of cash used by investing
activities in the first quarter of 1999 was generated by lower capital
expenditures in the first quarter of 1999 than in the corresponding quarter of
1998. Cash provided by financing activities for the first quarter of 1999 was
$11,660 compared to $9,620 used in financing activities for the first quarter of
1998.

          AvData believes that funds generated from operations, together with
existing cash and potential borrowings under the credit facility, will be
sufficient to finance its current operations, planned capital expenditures, and
internal growth for at least the next several years.


1998 Compared to 1997

          In 1998, cash provided from operations was $1,504,000, compared to
cash provided from operations of $1,052,000 in 1997.  The increase of $452,000
in cash from operating activities was primarily the result of the increase in
the net income of $1,295,000, as well as changes in working capital.  Cash used
for investing activities in 1998 was $1,341,000 compared to $1,607,000 in 1997.
The decrease in investing activities was due to a decrease in capital
expenditures.  Capital expenditures were driven primarily by infrastructure
systems enhancements, leasehold improvements, and various other fixed assets
acquisitions.  Cash provided from financing activities was $54,000 in 1998
compared to $297,000 in 1997.  The decrease in the cash from financing
activities was principally the result of repayments of principal versus
borrowings from AvData's equipment note payable.


1997 Compared to 1996

          In 1997, cash provided from operations was $1,052,000, compared to
cash provided from operations of $1,874,000 in 1996.  The decrease of $822,000
in cash from operations was primarily the result of increased expenses without a
corresponding increase in revenue.  Cash used in investing activities in 1997
was $1,607,000 compared to $1,768,000 in 1996.  The decrease was due

                                      98                    AVDATA INFORMATION
<PAGE>

to slightly less capital expenditures in 1997 compared to 1996. Cash provided
from financing activities was $297,000 in 1997 compared to $126 in 1996. The
increase in the cash financing was principally the result of net proceeds from
the issuance and repurchase of common stock of $229,000, which resulted from
stock option exercises, as well as proceeds from a note payable of $140,000.

Commitments

          Net capital expenditures were $1,341,000, $1,607,000, and $1,768,000
in 1998, 1997, and 1996, respectively.  Historically, capital expenditures have
been, and future expenditures are anticipated to be, primarily to support
expansion of AvData's operations, infrastructure platforms, network management
systems and management information systems.  AvData's capital expenditures for
the next several years are expected to be generally consistent with those of the
most recent years.  See Note 6 of Notes to Financial Statements for additional
information on AvData's obligations and commitments.




   Forward Looking Statements

          Certain statements made in this prospectus and proxy statement, and
other written or oral statements made by or on behalf of AvData, may constitute
"forward looking statements" within the meaning of the federal securities laws.
When used in this prospectus, the words, "believes", "expects", "estimates", and
similar expressions are intended to identify forward looking statements.
Statements regarding future events and developments and AvData's future
performance, as well as expectations, beliefs, plans, estimates, or projections
relating to the future, are forward looking statements within the meaning of
these laws.  Examples of such statements in this prospectus and proxy statement
include descriptions of AvData's plans with respect to developing new business
lines, plans to continue to change business mix, continuing growth and ability
to address year 2000 issues.  All forward-looking statements are subject to
certain risks and uncertainties that could cause actual events to differ
materially from those projected.  Such risks and uncertainties include, among
others, conditions affecting reliance on major clients and vendors; the ability
to successfully introduce and market a new product; the ability to attract and
retain key employees; the impact of competition; general economic conditions;
governmental regulation and the year 2000 issue.  AvData's management believes
that these forward-looking statements are reasonable, however, you should not
place undue reliance on such statements.  These statements are based on current
expectations and speak only as of the date of such statements.  No obligation is
undertaken to update or revise publicly any forward looking statement, whether
as a result of future events, new information, or otherwise.

   Market Risks Associated with Financial Instruments


          AvData's market risk sensitive instruments do not subject AvData to
material market risk exposures.


   Inflation


          AvData believes that inflation has not had a material effect on its
results of operations in recent years.  AvData believes that its ability to
increase the prices charged for its services in future periods will depend
primarily on competitive pressures in the marketplace.  There can be no
assurance that AvData's business will not be affected by inflation in the
future.

   Year 2000 Issues

                                      99                      AVDATA INFORMATION
<PAGE>

          AvData has reviewed and is addressing identified issues relating to
system readiness for the processing of date-sensitive information by its
computerized information systems.  The year 2000 problem impacts computer
programs and hardware timers using two digits (rather than four) to define the
applicable year.  As a result of addressing this issue, AvData has concluded
that all programs and timers that have time-sensitive functions will recognize
four digit dates prior to December 31, 1999 or have otherwise been converted and
tested to insure smooth operation through the year 2000 and beyond.  As a result
AvData expects no miscalculations or system failures will occur before, during,
or after December 31, 1999.  However, as stated below, AvData may incur problems
with year 2000 issues caused by year 2000 readiness failures of vendors,
suppliers or other third parties with whom AvData has material relationships.

          AvData has reviewed its information technology ("IT") and non-IT
computer systems and programs to determine which are not capable of recognizing
the year 2000 and to verify system readiness for the millennium date.  The
review covers all of AvData's operations and is centrally managed.  The review
includes:

     1.   increasing employee awareness and communication of year 2000 issues;

     2.   inventorying hardware, software and data interfaces and confirming
          year 2000 readiness of key vendors;

     3.   identifying mission-critical components for internal systems, vendor
          relations and other third parties;

     4.   estimating costs for remediation;

     5.   estimating completion dates;

     6.   remediating any identified problems by correcting or replacing systems
          or components;

     7.   testing and verifying systems;

     8.   implementing the remediation plan;

     9.   developing contingency plans; and,

     10.  training for contingency plans


          AvData has completed more than 95% of the activities required for the
first three of these steps, more than 80% of the activities required for the
fourth and fifth steps and more than 75% of the activities required for the
sixth step.  AvData is in the middle stages of performing the activities
required to complete the remaining steps and has begun to develop contingency
plans to handle its most reasonably likely worst case year 2000 scenarios.

          AvData estimates that its year 2000 readiness costs will not exceed
$75,000.  AvData generally expenses these costs as incurred.  While certain
costs have been incurred, AvData has not incurred any material historical costs
for remediation.  AvData does not expect these costs to have a material adverse
effect on its financial position, results of operations or cash flows.

          AvData's estimate of its year 2000 readiness costs is a "forward-
looking statement" within the meaning of the safe harbor provisions of the
Private Securities Litigation Reform Act of 1995.  Costs, results, performance
and effects of year 2000 activities described in those forward-looking
statements may differ materially from actual costs, results, performance and
effects in the

                                      100                     AVDATA INFORMATION
<PAGE>

future due to the interrelationship and interdependence of AvData's computer
systems and those of its vendors, material service providers, customers and
other third parties.

          AvData has not yet fully identified its most reasonably likely worst
case year 2000 scenarios. AvData continues to contact its vendors, suppliers and
third parties, with which it has material relationships, regarding their state
of readiness. This activity is focused primarily on mission critical systems and
key business suppliers. Until AvData has received and analyzed substantial
responses from them it will have difficulty determining its worst case
scenarios.

          AvData has begun to develop contingency plans to handle worst case
scenarios, to the extent they can be identified fully. AvData intends to
complete its contingency planning after completing its determination of worst
case scenarios. Completion of these activities depends upon the responses to the
inquiries AvData has made of its major vendors, material service providers and
third parties with which it has material relationships. AvData has also begun
work on contingency plans for certain systems identified as critical to its
operations.

          If AvData, its major vendors, its material service providers or its
customers fail to address year 2000 issues in a timely manner, such failure
could have a material adverse effect on AvData's business, results of operations
and financial condition. AvData depends on local exchange carriers and satellite
operators to provide most of its services. To the extent they fail to address
year 2000 issues which might interfere with their ability to fulfill their
obligations to AvData, such interference could have a material adverse effect on
AvData's future operations. If other telecommunications carriers are unable to
resolve year 2000 issues, it is likely that AvData will be affected to a similar
degree as others in the telecommunications industry.


     Legal Contingencies

          Various claims and proceedings of a nature considered normal to its
business are pending against AvData. Based on a review of current facts and
circumstances, management has provided for what it believes to be a reasonable
estimate of the exposure to loss associated with these matters. While
acknowledging the uncertainties' surrounding these matters, management is of the
opinion that resolution of these matters will not result in any significant
liability to AvData in relation to its financial position or liquidity.

     New Accounting Standards

          In June 1997, the Financial Accounting Standards Board (FASB) issued
Statement of Financial Accounting Standards No. 130, "Reporting Comprehensive
Income" (SFAS 130), and Statement of Financial Accounting Standards No. 131,
"Disclosures about Segments of an Enterprise and Related Information" (SFAS
131). SFAS 130 establishes standards for the reporting and presentation of
comprehensive income and its components. SFAS 131 establishes standards for
reporting information about operating segments. AvData is required to adopt both
SFAS 130 and SFAS 131 in 1999. The adoption of SFAS 130 and SFAS 131 will not
have a material effect on AvData's financial statements.

          In March 1998, the American Institute of Certified Public Accountants
(AICPA) issued Statement of Position 98-1, "Accounting for Costs of Computer
Software Developed or Obtained for Internal Use" (SOP 98-1), which defines the
type of costs related to such activities that should be capitalized versus
expensed as incurred.

          In April 1998, the AICPA issued Statement of Position 98-5, "Reporting
on the Costs of Start-Up Activities" (SOP 98-5), which requires all costs
incurred in the start-up of a new business or business segment to be expensed as
incurred.

                                      101                    AVDATA INFORMATION
<PAGE>

          In June 1998, the FASB issued Statement of Financial Accounting
Standards No. 133, "Accounting for Derivative Instruments and Hedging
Activities" (SFAS 133), which establishes accounting and reporting standards for
derivatives and hedging activities.

          AvData is required to adopt SOP 98-1, SOP 98-5 and SFAS 133 in 2000.
The adoption of these statements is not expected to have a material impact on
AvData's financial statements.

                                     102                      AVDATA INFORMATION
<PAGE>

                   SECURITY OWNERSHIP OF CERTAIN BENEFICIAL
                        OWNERS AND MANAGEMENT OF AVDATA

     Holders of record of AvData common stock at the close of business on May
15, 1999 are entitled to notice of and to vote at the special meeting and any
adjournment of that meeting. As of May 15, there were 30,772,170 shares of
AvData common stock issued and outstanding. Each share of AvData common stock is
entitled to one vote on each matter submitted for stockholder action.

     For purposes of calculating beneficial ownership, the number of shares
stated in the following tables include shares personally owned of record by that
person and shares that, under applicable regulations, are considered to be
otherwise beneficially owned by that person. Under these regulations, a
beneficial owner of a security includes any person who, directly or indirectly,
through any contract, arrangement, understanding, relationship or otherwise has
or shares voting power or dispositive power with respect to the security. Voting
power includes the power to vote or to direct the voting of the security.
Dispositive power includes the power to dispose or to direct the disposition of
the security. A person will be considered the beneficial owner of a security if
the person is legally entitled to share voting or dispositive power by reason of
joint ownership, trust or other contract or property right, or if the securities
are held by spouses and children over whom the person may have influence by
reason of relationship. A person also will be considered the beneficial owner of
a security if the person has a right to acquire beneficial ownership of the
security within 60 days.

     The following table sets forth information concerning the number of shares
of AvData common stock held by each stockholder who is known to AvData's
management to be the beneficial owner of more than five percent of the
outstanding AvData common stock as of May 15, 1999. The percentages reflected in
the column "Percent of Class" in this table were computed based on a total of
30,772,170 shares of AvData common stock outstanding as of May 15, 1999.

<TABLE>
<CAPTION>
                                                                Beneficial
                                                               Ownership of
          Name and Address of                                  Avdata Common                      Percent
          Beneficial Owner of Common Stock                         Stock                          of Class
          --------------------------------                     -------------                      --------
          <S>                                                  <C>                                <C>
          James H. Black, Jr. (1)                                 3,396,158                        11.04%
          55 Marietta Street
          Atlanta, Georgia 30303

          ITC Holding Company, Inc.                               6,562,094                        21.32%
          1239 O.G. Skinner Drive
          West Point, Georgia 31833

          North State Telephone Co.                               1,956,540                         6.36%
          Post Office Box 2326
          High Point, North Carolina 27261

          SCANA Capital Resources, Inc.                           1,577,384                         5.13%
          1426 Main Street
          Columbia, South Carolina 29201

          South Atlantic Venture Fund Limited Partnership         5,556,149                        18.06%
          614 West Bay Street, Suite 200
          Tampa, Florida 33606
          </TABLE>

              ________
              (1)  Includes 1,350,000 shares owned jointly by Mr. Black and his
                    wife, over which he has shared voting and investment power.

                                      103                       AVDATA OWNERSHIP
<PAGE>


     The following table sets forth information concerning the number of shares
of AvData common stock held as of May 15, 1999 by each of AvData's directors and
executive officers and all of AvData's directors and executive officers as a
group. The percentages reflected in the column "Percent of Class" in this table
were computed with reference to a total of 30,772,170 shares of AvData common
stock outstanding as of May 15, 1999 plus, where applicable, options to purchase
shares of AvData common stock that are currently exercisable or that may be
exercised within 60 days.

          Amount and Nature of Beneficial Ownership of AvData Common Stock
          -----------------------------------------------------------------


<TABLE>
<CAPTION>
                                                                          Shared
                                                 Sole Voting             Voting and            Total         Percent of
                   Name of                    and Dispositive           Dispositive         Beneficial        Ownership
               Beneficial Owner                   Power                    Power              Power             Class
               ----------------                   -----                    -----              -----             -----
          <S>                                 <C>                       <C>                 <C>              <C>
                 Directors
          James H. Black, Jr. (1)                2,046,158               1,350,000          3,396,158          10.85%
          Donald W. Burton (2)                           0               5,556,149          5,556,149          17.76%
          James D. Elliott                          38,200                       0             38,200             *
          Warren B. French, Jr.                          0                       0                  0             *
          Campbell B. Lanier, III (3)              305,810                 277,757            583,567           1.86%
          Kenneth F. Leddick                        45,000                       0             45,000             *
          William T. Parr                          192,545                       0            192,545             *
          William H. Scott, III                    305,850                       0            305,850             *

            Executive Officers
          Harold E. Cowan (4)                      373,455                       0            373,455           1.19%
          Judith H. Drobinski (5)                  255,221                       0            255,221             *
          James A. Miles (6)                       262,500                       0            262,500             *
          Richard J. Santillo (7)                  200,000                       0            200,000             *

          All directors and executive            4,024,739               7,183,906         11,208,645          35.82%
          officers as a group

          _______________
          * Indicates less than 1%.
</TABLE>

________________
(1)  Includes 1,350,000 shares owned jointly by Mr. Black and his wife, over
     which he has shared voting and investment power.
(2)  Mr. Burton, who serves as the managing general partner of South Atlantic
     Venture Fund Limited Partnership, has either sole or shared voting and
     investment power over the 5,556,149 shares owned by South Atlantic Venture
     Fund Limited Partnership.

(3)  Includes 277,757 shares owned by the C.B. Lanier, Inc. Marital Trust, of
     which Mr. Lanier is a trustee.

(4)  Includes 28,750 shares represented by options which have been granted and
     are exercisable.

(5)  Includes 28,750 shares represented by options which have been granted and
     are exercisable.

(6)  All 262,500 shares are represented by options which  have been granted and
     are exercisable.

(7)  All 200,000 shares are represented by options granted and shall be
     exercisable at the effective time of the merger.


                                      104                      AVDATA OWNERSHIP

<PAGE>

AVDATA EXECUTIVE COMPENSATION

     The following table shows information concerning the compensation paid to
James H. Black, Jr., Chairman and Chief Executive Officer of AvData, for
services rendered to AvData for the fiscal year ended December 31, 1998.


          Annual        Annual       Other Annual        All Other
          Salary        Bonus        Compensation        Compensation
          ------        -----        ------------        ------------

          $170,000    $139,108       /(1)/                $3,793/(2)/

__________
(1)  Amount does not exceed the lessor of $50,000 or 10% of total salary and
     bonus.

(2)  Consists of $3,545 of employer matching contributions to AvData's 401(k)
     plan and the value of life insurance premiums of $248 paid for the benefit
     of Mr. Black.


                                 105              AVDATA EXECUTIVE COMPENSATION

<PAGE>

IT/\DELTACOM CAPITAL STOCK AND COMPARISON OF STOCKHOLDER RIGHTS

     If the merger is completed, shares of AvData common stock will be converted
into shares of ITC/\DeltaCom common stock.  As a result, AvData stockholders,
whose rights are currently governed by the Delaware General Corporation Law,
AvData's certificate of incorporation and bylaws, would become ITC/\DeltaCom
stockholders, whose rights are governed by the Delaware General Corporation Law,
ITC/\DeltaCom's certificate of incorporation and bylaws.

     The following is a description of the capital stock of ITC/\DeltaCom,
including the ITC/\DeltaCom common stock to be issued in the merger, and a
summary of the material differences between the rights of AvData stockholders
and ITC/\DeltaCom stockholders. These differences arise from the differences
between ITC/\DeltaCom's certificate of incorporation and bylaws relative to
AvData's certificate of incorporation and bylaws. Although it is impractical to
compare all of the aspects in which the companies' governing instruments differ
with respect to stockholders' rights, the following discussion summarizes the
significant differences between them.


   Description of ITC/\DeltACom Capital Stock

     The following summary description of the capital stock of ITC/\DeltaCom is
based on the provisions of ITC/\DeltaCom's certificate of incorporation and
bylaws and the applicable provisions of the Delaware General Corporation Law.
For information on how to obtain copies of ITC/\DeltaCom's certificate of
incorporation and bylaws, see "Where You Can Find More Information."

Authorized and Outstanding Capital Stock of ITC/\Deltacom

     Under ITC/\DeltaCom's certificate of incorporation, ITC/\DeltaCom has
authority to issue 90,000,000 shares of common stock, par value $.01 per share,
and 5,000,000 shares of preferred stock, par value $.01 per share, of which
1,750,000 shares have been designated as Series A Preferred Stock. As of May 12,
1999, 58,000,212 shares of ITC/\DeltaCom common stock and 1,480,770 shares of
ITC/\DeltaCom Series A Preferred Stock (and no other shares of preferred stock)
were issued and outstanding.

     The rights of the holders of ITC/\DeltaCom common stock discussed below are
subject to such rights as ITC/\DeltaCom's board of directors may hereafter
confer on holders of ITC/\DeltaCom preferred stock that may be issued in the
future. Such rights may adversely affect the rights of holders of ITC/\DeltaCom
common stock.


ITC/\DeltaCom Common Stock

     Voting Rights. Each holder of ITC/\DeltaCom common stock is entitled to
attend all special and annual meetings of the stockholders of ITC/\DeltaCom and,
together with the holders of all other classes of stock entitled to attend and
vote at such meetings, to vote upon any matter or thing (including, without
limitation, the election of one or more directors) properly considered and acted
upon by the stockholders. Each holder of ITC/\DeltaCom common stock is entitled
to one vote per share with respect to all such matters.

     Liquidation Rights.  In the event of any dissolution, liquidation or
winding up of ITC/\DeltaCom, whether voluntary or involuntary, the holders of
ITC/\DeltaCom common stock and holders of any class or series of stock entitled
to participate therewith, will become entitled to participate equally on a per-
share basis in the distribution of any assets of ITC/\DeltaCom remaining after
ITC/\DeltaCom shall have paid, or provided for payment of, all debts and
liabilities of

                                      106          CAPITAL STOCK AND COMPARISON
                                                   OF STOCKHOLDERS RIGHTS
<PAGE>

ITC/\DeltaCom and after ITC/\DeltaCom shall have paid, or set aside
for payment, to the holders of any class of stock having preference over the
common stock in the event of dissolution, liquidation or winding up the full
preferential amounts (if any) to which they are entitled.  See "--Series A
Preferred Stock."

     Dividends. Subject to the rights, if any, of the holders of shares of
ITC/\DeltaCom preferred stock, the holders of ITC/\DeltaCom common stock and
holders of any class or series of stock entitled to participate therewith as to
dividends are entitled to receive dividends, when, as and if declared by the
board of directors, out of any assets legally available therefor. ITC/\DeltaCom
has never paid dividends and its ability to pay cash dividends is limited by the
terms of its credit facility and senior note indenture.

     No holder of ITC/\DeltaCom common stock has any preemptive right to
subscribe for any of ITC/\DeltaCom's securities, nor does any holder of
ITC/\DeltaCom common stock have conversion rights.  The rights, privileges,
preferences and priorities of holders of ITC/\DeltaCom common stock are subject
to, and may be adversely affected by, the rights of the holders of ITC/\DeltaCom
Series A Preferred Stock and shares of any series of preferred stock which
ITC/\DeltaCom may designate and issue in the future.

PREFERRED STOCK

     The ITC/\DeltaCom certificate of incorporation authorizes the board, from
time to time and without further stockholder action, to provide for the issuance
of up to 5,000,000 shares of preferred stock in one or more series, of which
1,750,000 shares have been designated as Series A Preferred Stock, and to fix
the relative rights and preferences of the shares, including voting powers,
dividend rights, liquidation preferences, redemption rights and conversion
privileges. As of the date hereof, the board has not provided for the issuance
of any series of preferred stock other than the Series A Preferred Stock and
there are no agreements or understandings for the issuance of any such other
series of preferred stock. Because of its broad discretion with respect to the
creation and issuance of preferred stock without stockholder approval, the board
could adversely affect the voting power of the holders of the common stock and,
by issuing shares of preferred stock with certain voting, conversion and/or
redemption rights, could discourage any attempt to obtain control of
ITC/\DeltaCom.

SERIES A PREFERRED STOCK

     ITC/\DeltaCom's board of directors has designated 1,750,000 shares of
preferred stock as series A Convertible Preferred Stock.

     Conversion Rights. Holders of Series A Preferred Stock have the right, at
any time after March 14, 2002, to convert each share of Series A Preferred Stock
into one share of ITC/\DeltaCom common stock, subject to adjustment for stock
splits, stock dividends, recapitalizations and other specified events.

     Liquidation Rights. In the event of any dissolution, liquidation or winding
up of ITC/\DeltaCom, whether voluntary or involuntary, holders of Series A
Preferred Stock will be entitled to receive a distribution of $7.40 per share,
plus any dividends declared and unpaid, prior to any payment or distribution of
assets to holders of ITC/\DeltaCom common stock. After such distribution has
been made, and after the holders of any other class or series of stock having
preference over the common stock have received the full preferential amounts to
which they are entitled, holders of ITC/\DeltaCom common stock will be entitled
to an equivalent distribution of $7.40 per share, plus any dividends declared
and unpaid, out of remaining assets of ITC/\DeltaCom. Holders of Series A
Preferred Stock and holders of the common stock and any other class or series of
stock entitled to participate with the common stock will be entitled to share
ratably in the distribution of any remaining assets of ITC/\DeltaCom, with
holders of Series A Preferred Stock

                                      107          CAPITAL STOCK AND COMPARISON
                                                   OF STOCKHOLDERS RIGHTS
<PAGE>

entitled to receive an amount equal to the distribution made in respect of the
number of shares of common stock into which the Series A Preferred Stock is then
convertible.

     Dividend Rights. The holders of Series A Preferred Stock are entitled to
receive, when, as and if declared by ITC/\DeltaCom's board of directors out of
funds legally available therefor, dividends in an amount per share of Series A
Preferred Stock equal to the dividends payable on the number of shares of common
stock into which one share of Series A Preferred Stock is then convertible. So
long as any shares of Series A Preferred Stock are outstanding, no dividends may
be declared or paid on ITC/\DeltaCom common stock or any other class or series
of capital stock ranking on a parity with the Series A Preferred Stock as to
dividends unless dividends are also paid on the Series A Preferred Stock in an
amount per share equal to the dividends payable on the number of shares of
ITC/\DeltaCom common stock into which one share of Series A Preferred Stock is
convertible.

     No Redemption Rights. The Series A Preferred Stock is not subject to
mandatory or optional redemption.

     Voting Rights. Except as set forth in the following sentence, holders of
Series A Preferred Stock have no voting rights. The affirmative vote of holders
of at least two-thirds of the shares of Series A Preferred Stock outstanding is
necessary for (1) the authorization or issuance of any class of stock ranking
prior to the Series A Preferred Stock as to dividends or the distribution of
assets upon dissolution, liquidation or winding up of ITC/\DeltaCom, (2) an
increase in the authorized or issued amount of Series A Preferred Stock or (3)
the amendment, alteration or repeal, whether by merger, consolidation or
otherwise, of any provision of ITC/\DeltaCom's certificate of incorporation that
would affect any right, preference or voting power of the Series A Preferred
Stock.

CERTAIN CHARTER AND STATUTORY PROVISIONS

     Classified Board. ITC/\DeltaCom's certificate of incorporation provides for
the division of its board of directors into three classes of directors, each
serving staggered, three-year terms. The certificate of incorporation further
provides that any alteration, amendment or repeal of certain sections of the
certificate relating to the election and classification of the board of
directors, indemnification and the vote requirements for such amendments to the
certificate requires the approval of the holders of at least two-thirds of the
shares entitled to vote thereon. These provisions may have the effect of
deterring hostile takeovers or delaying changes in control or management of
ITC/\DeltaCom.

     ITC/\DeltaCom's bylaws provide that any stockholder wishing to nominate
persons for election as directors at a meeting of stockholders must deliver to
the Secretary of ITC/\DeltaCom at ITC/\DeltaCom's principal executive office a
written notice of the stockholder's intention to make such a nomination. The
stockholder must furnish the notice not less that 60 days prior to the meeting
date (or, if ITC/\DeltaCom provides less than 75 days' notice or prior public
disclosure of the meeting date, not later than the close of business on the
fifteenth day following the date ITC/\DeltaCom mails the notice or provides
public disclosure). The stockholder's notice is required to include information
about each person whom the stockholder proposes to nominate for election or re-
election as a director and the stockholder giving the notice.

     Certain Statutory Provisions. ITC/\DeltaCom is subject to the provisions of
Section 203 of the Delaware General Corporation Law. In general, this statute
prohibits a publicly held Delaware corporation such as ITC/\DeltaCom from
engaging in a business combination with an interested stockholder for a period
of three years after the date of the transaction in which the person became an
interested stockholder, unless

     .    prior to such date, the corporation's board of directors approved
          either the business combination or the transaction that resulted in
          the stockholder becoming an interested stockholder,

                                      108         CAPITAL STOCK AND COMPARISON
                                                  OF STOCKHOLDERS RIGHTS
<PAGE>

     .    upon consummation of the transaction that resulted in such person
          becoming an interested stockholder, the interested stockholder owned
          at least 85% of the voting stock of the corporation outstanding at the
          time the transaction commenced, excluding, for purposes of determining
          the number of shares outstanding, shares owned by certain directors or
          certain employee stock plans, or

     .    on or after the date the stockholder became an interested stockholder,
          the business combination is approved by the corporation's board of
          directors and authorized by the affirmative vote, and not by written
          consent, of at least two-thirds of the outstanding voting stock of the
          corporation excluding that stock owned by the interested stockholder.

A "business combination" includes a merger, asset sale or other transaction
resulting in a financial benefit to the interested stockholder. An "interested
stockholder" is a person, other than the corporation and any direct or indirect
wholly-owned subsidiary of the corporation, who together with affiliates and
associates, owns or, as an affiliate or associate, within three years prior, did
own 15% or more of the corporation's outstanding voting stock.

     ITC/\DeltaCom's certificate of incorporation empowers ITC/\DeltaCom's board
of directors to redeem any of ITC/\DeltaCom's outstanding capital stock at a
price determined by ITC/\DeltaCom's board of directors, which price will be at
least equal to the lesser of

     (1) fair market value, as determined in accordance with ITC/\DeltaCom's
certificate of incorporation, or

     (2) in the case of a "Disqualified Holder," such holder's purchase price,
if the stock was purchased within one year of such redemption,

to the extent necessary to prevent the loss or secure the reinstatement of any
license, operating authority or franchise from any governmental agency. A
"Disqualified Holder" is any holder of shares of stock of ITC/\DeltaCom whose
holding of such stock may result in the loss of, or failure to secure the
reinstatement of, any license or franchise from any governmental agency held by
ITC/\DeltaCom or any of its subsidiaries to conduct any portion of the business
of ITC/\DeltaCom or any of its subsidiaries. Under the Telecommunications Act of
1996, non-U.S. citizens or their representatives, foreign governments or their
representatives, or corporations organized under the laws of a foreign country
may not own, in the aggregate, more than 20% of a common carrier licensee or
more than 25% of the parent of a common carrier licensee if the FCC determines
that the public interest would be served by prohibiting such ownership.
Additionally, the FCC's rules may under some conditions limit the size of
investments by foreign telecommunications carriers in U.S. international
carriers.


TRANSFER AGENT AND REGISTRAR

     American Stock Transfer & Trust Company will serve as transfer agent and
registrar for the ITC/\DeltaCom common stock.

   comparison of ITC/\DeltaCom Common Stock and AvData Common Stock

     The rights of AvData stockholders are currently governed by the Delaware
General Corporation Law, AvData's certificate of incorporation and AvData's
bylaws. In accordance with the merger agreement, at the effective time of the
merger each issued and outstanding share of AvData common stock will be
converted into the right to receive shares of ITC/\DeltaCom common stock based
on a formula specified in the merger agreement; provided, however, that shares
of stock held by stockholders who have properly exercised their rights to
appraisal will be converted into the right

                                      109         CAPITAL STOCK AND COMPARISON
                                                  OF STOCKHOLDERS RIGHTS
<PAGE>

to receive cash in the amount of the appraised value pursuant to Delaware
General Corporate Law. Accordingly, upon consummation of the merger, the rights
of AvData stockholders who become stockholders of ITC/\DeltaCom will be governed
the Delaware General Corporation Law and ITC/\DeltaCom's certificate of
incorporation and bylaws. The following are summaries of the material
differences between the rights of AvData stockholders and the rights of
ITC/\DeltaCom stockholders. For additional information, see "Where You Can Find
More Information."

Authorized Capital

     AvData. Under AvData's certificate of incorporation, AvData has authority
to issue 45,000,000 shares of common stock, par value of $.01 per share,
10,000,000 shares of preferred stock, par value of $.01 per share, and
30,000,000 shares of serial preferred stock, par value of $.01 per share, of
which 22,000,000 are designated as Series A. As of May 15, 1999, 30,772,170
shares of AvData common stock were issued and outstanding, 978,162 shares were
held in the treasury of AvData, and 1,936,500 shares were reserved for issuance
upon the exercise of outstanding options to purchase shares of AvData common
stock. As of May 15, 1999, no shares of either AvData's preferred stock or
serial preferred stock were issued and outstanding, held in the treasury of
AvData, or reserved for issuance upon the exercise of outstanding options.

Board of Directors

     AvData. Under AvData's bylaws, the number of directors of AvData will be no
less than one and no more than 21, and will be determined from time to time by
resolution adopted by AvData's board of directors. The current number of AvData
directors is eight. AvData's directors are elected for one-year terms by a
plurality vote at the annual stockholders meeting by the holders of shares
present at the meeting or represented by proxy and entitled to vote in the
election. A quorum at any meeting of AvData's board of directors consists of a
majority of the total number of directors, and a majority of the directors
present at any meeting at which a quorum is present is required to approve
AvData board of directors action.

     ITC/\DeltaCom. Under ITC/\DeltaCom's bylaws, the number of ITC/\DeltaCom
directors will be no less than five and no more than 15. The current number of
ITC/\DeltaCom directors is nine. ITC/\DeltaCom's board of directors is divided
into three classes as nearly equal in number as possible, and the ITC/\DeltaCom
directors are elected for three-year terms by a plurality of the voting rights
represented by the shares present in person or represented by proxy at the
annual stockholders meeting and entitled to vote in the election. If the holders
of any class or series of ITC/\DeltaCom preferred stock have the right, under
the applicable certificate of designations, to vote separately as a class or
series to elect directors, then the directors so elected will not be divided
into classes and election and other terms of such directorships will be governed
by the certificate of designations. Currently, no holders of ITC/\DeltaCom
preferred stock have any such right. A quorum at any meeting of ITC/\DeltaCom's
board of directors consists of a majority of the total number of directors, and
a majority of the directors present at any meeting at which a quorum is present
is required to approve ITC/\DeltaCom board of directors action.

Committees of the Board of Directors

     AvData. AvData's bylaws provide that AvData's board of directors may
appoint committees, by resolution adopted by a majority of the entire AvData
board, to exercise the authority delegated to them.

     ITC/\DeltaCom. Under ITC/\DeltaCom's bylaws, ITC/\DeltaCom's board of
directors may designate one or more committees, which must consist of
ITC/\DeltaCom directors.

                                      110         CAPITAL STOCK AND COMPARISON
                                                  OF STOCKHOLDERS RIGHTS
<PAGE>

Newly Created Directorships and Vacancies

     AvData. Under AvData's bylaws, newly created directorships resulting from
an increase in the number of directors and vacancies may be filled by a majority
of the votes of directors then in office, whether or not a quorum. If, at the
time of filling any vacancy or any newly created directorship, the directors
then in office constitute less than a majority of the whole board immediately
prior to any such increase, the Court of Chancery of the State of Delaware may,
upon application of any stockholder or stockholders holding at least ten percent
of the total number of the then outstanding shares having the right to vote for
such directors, order an election to be held to fill any such vacancies or newly
created directorships, or to replace the directors chosen by the directors then
in office, in accordance with the Delaware General Corporation Law. If one or
more directors resigns from the board, effective at a future date, a majority of
the directors then in office, including those who have so resigned, have the
power to fill such vacancies, and their vote will take effect when such
resignations become effective.

     ITC/\DeltaCom. Under ITC/\DeltaCom's certificate of incorporation,
vacancies and newly created directorships resulting from an increase in the
authorized number of ITC/\DeltaCom directors elected by all of the holders of
ITC/\DeltaCom common stock may be filled by a majority of the ITC/\DeltaCom
directors then in office, even if less than a quorum, or by a sole remaining
director. If one or more directors resigns from the board, effective at a future
date, a majority of the directors then in office, including those who have so
resigned, have the power to fill such vacancies, and their vote will take effect
when such resignations become effective. When the number of directors is
changed, any newly created or eliminated directorship will be apportioned among
the classes of directors so as to make all classes as nearly equal in number as
possible. Notwithstanding the foregoing, if holders of any class or series of
stock are entitled to vote separately as a class or series to elect directors,
then vacancies and newly created directorships elected by such class or series
may only be filled by a majority of the directors elected by such class or
series in office.

Removal of Directors

     AvData. Neither AvData's certificate of incorporation nor its bylaws
includes a provision setting forth the procedure for the removal of directors.
Under the Delaware General Corporation Law, any director or the entire board of
directors of a corporation without a classified board, such as AvData, may be
removed by the holders of a majority of shares then entitled to vote at an
election of directors with or without cause.

     ITC/\DeltaCom. Under ITC/\DeltaCom's certificate of incorporation, any
director or directors may be removed by the holders of 66-2/3% of the total
number of shares then entitled to vote at an election of directors, but only for
cause, except as otherwise provided by a certificate of designations that
authorizes the holders of a series of ITC/\DeltaCom preferred stock to vote
separately by series to elect directors.

Officers

     AvData. Under AvData's bylaws, AvData's principal officers consist of a
Chairman, a President, a Treasurer, a Secretary and such other officers as the
board of directors may appoint. Any number of offices may be held by the same
person, except that neither the Chairman nor the President may also be the
Secretary. AvData's board of directors may remove any officer with or without
cause, by the vote of a majority of the entire AvData board of directors.

     ITC/\DeltaCom. Under ITC/\DeltaCom's bylaws, ITC/\DeltaCom's officers
consist of a President, a Secretary and a Treasurer, and other officers and
assistant officers as may be elected or appointed by ITC/\DeltaCom's board of
directors (or an officer authorized by the board of directors).

                                      111         CAPITAL STOCK AND COMPARISON
                                                  OF STOCKHOLDER RIGHTS
<PAGE>

Any number of offices may be held by the same person, except that the President
may not also be the Secretary. ITC/\DeltaCom's board of directors may remove any
officer, with or without cause, by the affirmative vote of a majority of
ITC/\DeltaCom's board of directors.

Special Meetings of Stockholders

     AvData. Under AvData's bylaws, a special meeting of AvData's stockholders
may be called at any time by the board of directors or the President, and must
be called by the President or the Secretary upon the request in writing of
AvData stockholders holding of record a majority of the outstanding shares of
AvData entitled to vote at such meeting, which request must include a statement
of the purpose or purposes of the proposed meeting.

     ITC/\DeltaCom. Under ITC/\DeltaCom's certificate of incorporation and
bylaws, a special meeting of ITC/\DeltaCom's stockholders may be called by a
majority of the directors in office, although less than a quorum, or the
Chairperson (if such office exists).


Quorum at Stockholder Meetings

     AvData. Under AvData's bylaws, the holders of record of a majority of stock
issued and outstanding and entitled to vote thereat, present in person or
represented by proxy, constitute a quorum at each stockholder meeting.

     ITC/\DeltaCom. Under ITC/\DeltaCom's bylaws, the holders of a majority of
the voting rights represented by the shares issued and outstanding and entitled
to vote at the meeting, and who are present in person or represented by proxy,
will constitute a quorum at all meetings of the stockholders for the transaction
of business. Where a separate vote by a class or classes is required, a majority
of the outstanding shares of such class or classes, present in person or
represented by proxy, will constitute a quorum entitled to take action with
respect to that vote on that matter. The holders of a majority of the voting
rights represented by the shares represented at a meeting, whether or not a
quorum is present, may adjourn such meeting from time to time.

Stockholder Action by Written Consent

     AvData. Under AvData's bylaws, any action required or permitted to be taken
at any annual or special meeting of stockholders may be taken without a meeting,
without prior notice and without a vote, if written consents are signed by the
holders of outstanding stock having not less than the minimum number of votes
that would be necessary to take such action at a meeting at which all shares
entitled to vote were present and voted.

     ITC/\DeltaCom. Under ITC/\DeltaCom's certificate of incorporation and
bylaws, any action required or permitted to be taken at any annual or special
meeting of stockholders may be taken without a meeting, without prior notice and
without a vote, if written consents are signed by the holders of outstanding
stock having not less than the minimum number of votes that would be necessary
to take such action and the written consents are delivered to ITC/\DeltaCom
within 60 days of the delivery to ITC/\DeltaCom of the earliest consent.


Advance Notice of Stockholder-Proposed Business at Annual Meetings

     Neither ITC/\DeltaCom's certificate of incorporation or bylaws, nor
AvData's certificate of incorporation or bylaws, includes a provision which
requires that advance notice be given to ITC/\DeltaCom or AvData of stockholder-
proposed business to be conducted at annual meetings.

                                      112        CAPITAL STOCK AND COMPARISON
                                                 OF STOCKHOLDER RIGHTS
<PAGE>

Amendment of Governing Documents

     AvData. AvData may amend, alter, change or repeal any provision of AvData's
certificate of incorporation as permitted by the Delaware General Corporation
Law. Under the Delaware General Corporation Law, an amendment to a corporation's
certificate of incorporation requires the recommendation of a corporation's
board of directors, the approval of a majority of all shares entitled to vote
thereon, voting together as a single class, and the approval of a majority of
the outstanding stock of each class entitled to vote separately thereon unless a
higher vote is required in the corporation's certificate of incorporation. Under
the Delaware General Corporation Law, the AvData stockholders have the power to
adopt, amend or repeal AvData's bylaws or to adopt new bylaws.

     ITC/\DeltaCom. ITC/\DeltaCom may amend or repeal any provision of its
certificate of incorporation as permitted by the Delaware General Corporation
Law and ITC/\DeltaCom's certificate of incorporation, except as noted below.
Under the Delaware General Corporation Law, an amendment to a corporation's
certificate of incorporation requires the recommendation of a corporation's
board of directors, the approval of a majority of all shares entitled to vote in
the election of directors, voting together as a single class, and the approval
of a majority of the outstanding stock of each class entitled to vote separately
thereon unless a higher vote is required in the corporation's certificate of
incorporation. Under ITC/\DeltaCom's certificate of incorporation, the
affirmative vote of at least two-thirds of the voting rights represented by the
shares entitled to vote in the election of directors, voting together as a
single class, is required to amend or repeal Section 5 (the board of directors),
Section 6 (actions by stockholders), and Section 7 (amendment of certificate of
incorporation) of ITC/\DeltaCom's certificate of incorporation.

     Under ITC/\DeltaCom's certificate of incorporation, ITC/\DeltaCom's board
of directors has the power to adopt, alter, amend and repeal ITC/\DeltaCom's
bylaws in accordance with the Delaware General Corporation Law. Also under
ITC/\DeltaCom's certificate of incorporation, the affirmative vote of at least
two-thirds of the voting rights represented by the shares entitled to vote in
the election of directors, voting together as a single class, is required for
the stockholders to amend or repeal ITC/\DeltaCom's bylaws.

Business Combination with an Interested Stockholder

     AvData and ITC/\DeltaCom are subject to the provisions of Section 203 of
the Delaware General Corporation Law as generally described above under "--
Description of ITC/\DeltaCom Capital Stock--Certain Charter and Statutory
Provisions."

                                      113         CAPITAL STOCK AND COMPARISON
                                                  OF STOCKHOLDER RIGHTS
<PAGE>

OTHER MATTERS

     Legal Matters

          The validity of the ITC/\DeltaCom common stock offered hereby and
certain federal income tax consequences in connection with the merger will be
passed upon by Hogan & Hartson L.L.P., Washington, D.C. Hogan & Hartson L.L.P.
has provided legal services to Campbell B. Lanier, III, Chairman of
ITC/\DeltaCom. As of May 15, 1999, Anthony S. Harrington, a partner of Hogan &
Hartson L.L.P., beneficially owned approximately 118,000 shares of ITC/\DeltaCom
common stock and 224,690 shares of AvData common stock.

          The federal income tax consequences described in this prospectus and
proxy statement are the subject of an opinion issued by Hogan & Hartson L.L.P.

     Experts

          The consolidated balance sheet of ITC/\DeltaCom as of December 31,
1998 and 1997, and the related statements of operations, stockholders' equity
and cash flows for each of the three years in the period ended December 31, 1998
and the related schedule incorporated by reference in this registration
statement have been audited by Arthur Andersen LLP, independent public
accountants, as indicated in their reports with respect thereto and are included
herein in reliance upon the authority of said firm as experts in giving said
reports.

          The balance sheet of AvData Systems, Inc. as of December 31, 1998 and
1997, and the related statements of operations, stockholders' equity and cash
flows for each of the three years in the period ended December 31, 1998 included
in this registration statement have been audited by Arthur Andersen LLP,
independent public accountants, as stated in their report with respect thereto
and are included herein in reliance upon the authority of said firm as experts
in giving said report.

     Other Matters

          As of the date of this prospectus and proxy statement, AvData's board
of directors knows of no matter that will be presented for consideration at the
special meeting other than as described in this prospectus and proxy statement.
If any other matters come before the special meeting or any adjournments or
postponements thereof and are voted upon, the enclosed proxies will confer
discretionary authority on the individuals named as proxies therein to vote the
shares represented by such proxies as to any such matters. The individuals named
as proxies intend to vote or not to vote in accordance with the recommendation
of the management of AvData.

     Where You Can Find More Information

          ITC/\DeltaCom has filed the registration statement of which this
prospectus and proxy statement forms a part. The registration statement
registers the distribution to AvData stockholders of the shares of ITC/\DeltaCom
common stock to be issued in connection with the merger. The registration
statement, including the attached exhibits and schedules, contain additional
relevant information about ITC/\DeltaCom common stock. The rules and regulations
of the SEC allows ITC/\DeltaCom to omit certain information included in the
registration statement from this prospectus and proxy statement.

                                     114                        OTHER MATTERS
<PAGE>

     In addition, ITC/\DeltaCom files reports, proxy statements and other
information with the SEC under the Securities Exchange Act. You may read and
copy any of this information at the following locations of the SEC:

   Public Reference Room     New York Regional Office   Chicago Regional Office
   450 Fifth Street, N.W.     7 World Trade Center          Citicorp Center
        Room 1024                  Suite 1300          500 West Madison Street
  Washington, D.C.  20549   New York, New York 10048          Suite 1400
                                                      Chicago, Illinois 60661-
                                                                 2511

     You may obtain information on the operation of the SEC's Public Reference
Room by calling the SEC at 1-800-SEC-0330.

     The SEC also maintains an Internet Web site that contains reports, proxy
statements and other information regarding issuers, like ITC/\DeltaCom, that
file electronically with the SEC. The address of that site is
http://www.sec.gov. The SEC file number for ITC/\DeltaCom's documents filed
under the Securities Exchange Act is 0-23252.

     The SEC allows ITC/\DeltaCom to disclose important information to you by
referring you to another document filed separately with the SEC. This
information is considered to be a part of this prospectus and proxy statement,
except for any such information that is superseded by information included
directly in this document.

     The documents listed below that ITC/\DeltaCom has previously filed or will
file with the SEC are considered to be a part of this prospectus and proxy
statement. They contain important information about ITC/\DeltaCom and its
financial condition.

     .    ITC/\DeltaCom's Annual Report on Form 10-K for its fiscal year ended
          December 31, 1998, filed on March 25, 1999, as amended by Form 10-K/A,
          filed on April 30, 1999;


     .    ITC/\DeltaCom's Quarterly Report on Form 10-Q for the quarter ended
          March 31, 1999, filed on May 17, 1999;

     .    ITC/\DeltaCom's Current Reports of Form 8-K, filed with the SEC on
          April 30, 1999 and May 6, 1999; and

     .    All documents filed with the SEC by ITC/\DeltaCom under Sections
          13(a), 13(c), 14 and 15(d) of the Securities Exchange Act after the
          date of this prospectus and proxy statement and prior to the date of
          the special meeting are considered to be a part of this prospectus and
          proxy statement, effective the date such documents are filed

     In the event of conflicting information in these documents, the information
in the latest filed document should be considered correct.

     You can obtain any of the documents listed above from the SEC, through the
SEC's Web site at the address described above, or from ITC/\DeltaCom, by
requesting them in writing or by telephone at the following address:

                              ITC/\DeltaCom, Inc.
                            1791 O.G. Skinner Drive
                           West Point, Georgia 31833
                           Attn: Investor Relations
                           Telephone (706) 385-8000

                                      115                       OTHER MATTERS
<PAGE>


     These documents are available from ITC/\DeltaCom without charge, excluding
any exhibits to them unless the exhibit is specifically listed as an exhibit to
the registration statement of which this prospectus and proxy statement forms a
part. If you would like to request documents, please do so by June 25, 1999 to
receive them before the special meeting of AvData's stockholders. If you request
any documents from ITC/\DeltaCom, ITC/\DeltaCom will mail them to you by first
class mail, or another equally prompt means, within two business days after
ITC/\DeltaCom receives your request.

     This document is a prospectus of ITC/\DeltaCom and a proxy statement of
AvData. ITC/\DeltaCom has supplied all information contained in, or considered a
part of, this prospectus and proxy statement relating to ITC/\DeltaCom, and
AvData has supplied all such information relating to AvData.

     Neither ITC/\DeltaCom nor AvData has authorized anyone to give any
information or make any representation about the merger or ITC/\DeltaCom or
AvData that is different from, or in addition to, that contained in this
prospectus and proxy statement or in any of the materials that ITC/\DeltaCom has
incorporated into this document. Therefore, if anyone does give you information
of this sort, you should not rely on it. The information contained in this
document speaks only as of the date of this document unless the information
specifically indicates that another date applies.

                                      116                      OTHER MATTERS
<PAGE>

INDEX TO FINANCIAL STATEMENTS

                  AvData Systems, Inc. Financial Information

<TABLE>
<S>                                                                         <C>
Report of Independent Public Accountants..................................  F-1

Balance Sheets............................................................  F-2

Statements of Operations..................................................  F-3

Statements of Changes in Stockholders' Equity.............................  F-4

Statements of Cash Flows..................................................  F-5

Notes to Financial Statements.............................................  F-6
</TABLE>
<PAGE>

                   REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS




To the Board of Directors of
AvData Systems, Inc.:


We have audited the accompanying balance sheets of AVDATA SYSTEMS, INC. (a
Delaware corporation) as of December 31, 1998 and 1997 and the related
statements of operations, changes in stockholders' equity, and cash flows for
each of the three years in the period ended December 31, 1998. These financial
statements are the responsibility of the Company's management responsibility
is to express an opinion on these financial statements based on
our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards 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. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of AvData Systems, Inc. as of
December 31, 1998 and 1997 and the results of its operations and its cash flows
for each of the three years in the period ended December 31, 1998 in conformity
with generally accepted accounting principles.




ARTHUR ANDERSEN LLP
Atlanta, Georgia
March 12, 1999

                                      F-1
<PAGE>

                             AVDATA SYSTEMS, INC.

                                BALANCE SHEETS

                          DECEMBER 31, 1998 AND 1997

<TABLE>
<CAPTION>
                         ASSETS                                         March 31, 1999         1998              1997
- --------------------------------------------------------                --------------    --------------    -------------
                                                                          (Unaudited)
<S>                                                                     <C>               <C>               <C>
CURRENT ASSETS:
  Cash and cash equivalents                                             $ 3,523,077       $ 3,505,172       $ 3,287,593
  Accounts receivable, net of allowance for doubtful
    accounts of $236,907 and $80,000 in 1998 and
    1997, respectively                                                    2,735,041         4,118,401         2,901,961
  Inventory (Note 2)                                                      1,333,671         1,448,336           745,921
  Other current assets                                                      438,789           152,639           130,181
                                                                        --------------   ---------------    -------------
         Total current assets                                             8,030,578         9,224,548         7,065,656
                                                                        --------------   ---------------    -------------
PLANT AND EQUIPMENT (NOTE 2):
  Network and related equipment                                           8,449,594         8,403,933         7,360,276
  Office furniture and equipment                                            502,184           502,184           469,385
  Computer equipment                                                        945,410           945,410           691,711
  Leasehold improvements                                                    451,702           451,702           445,282
                                                                        --------------   ---------------    -------------
                                                                         10,348,890        10,303,229         8,966,654
  Less accumulated depreciation                                          (5,966,531)       (5,674,612)       (4,593,185)
                                                                        --------------   ---------------    -------------
         Plant and equipment, net                                         4,382,359         4,628,617         4,373,469
                                                                        --------------   ---------------    -------------
OTHER ASSETS:
  Deferred income taxes (Note 5)                                            489,000           489,000            89,000
  Other noncurrent assets                                                    37,997             1,000             1,000
                                                                        --------------   ---------------    -------------
         Total other assets                                                 526,997           490,000            90,000
                                                                        --------------   ---------------    -------------
         Total assets                                                    12,939,934       $14,343,165       $11,529,125
                                                                        ==============   ===============    =============


LIABILITIES AND STOCKHOLDERS' EQUITY                                    March 31, 1999       1998            1997
====================================                                    --------------   -------------   ------------
                                                                          (Unaudited)
CURRENT LIABILITIES:
  Accounts payable and accrued liabilities                              $ 3,009,089      $ 3,580,675     $ 1,686,583
  Deferred revenues                                                         992,999        1,253,536       1,942,014
  Income tax payable (Note 5)                                                     0          359,012          89,000
  Note payable--current portion                                              60,075           60,075          60,075
                                                                        --------------   -------------   ------------
         Total current liabilities                                        4,062,163        5,253,298       3,777,672
                                                                        --------------   -------------   ------------
LONG-TERM LIABILITIES:
  Deferred revenues                                                         885,997          911,306       1,329,548
  Note payable--long-term portion                                            16,481           25,349          80,123
                                                                        --------------   -------------   ------------
         Total long-term liabilities                                        902,478          936,655       1,409,671
                                                                        --------------   -------------   ------------
COMMITMENTS AND CONTINGENCIES (NOTE 6)

STOCKHOLDERS' EQUITY:
  Serial preferred stock, $.01 par value; 30,000,000
    shares authorized, 22,000,000 shares
    designated as Series A, 0 shares issued and
    outstanding in 1998 and 1997; preference in
    liquidation of $0 in 1998 and 1997                                            0                0               0
  Common stock, $.01 par value; 45,000,000 shares
    authorized, 31,554,332 and 28,699,643 shares
    issued at December 31, 1998 and 1997, respectively                      317,503          315,543         286,996
  Additional paid-in capital                                              8,265,524        8,205,576       7,900,598
  Treasury stock, at cost, 914,830 and 197,209 shares
    at December 31, 1998 and 1997, respectively                            (219,013)        (165,181)        (93,377)
  Notes receivable from officers and employees                             (212,659)        (225,111)        (72,062)
  Retained earnings (accumulated deficit)                                  (176,062)          22,385      (1,680,373)
                                                                        --------------   -------------   ------------
         Total stockholders' equity                                       7,975,293        8,153,212       6,341,782
                                                                        --------------   -------------   ------------
         Total liabilities and stockholders' equity                      12,939,934      $14,343,165     $11,529,125
                                                                        ==============   =============   ============
</TABLE>

           The accompanying notes are an integral part of these balance sheets.


                                      F-2
<PAGE>

                             AVDATA SYSTEMS, INC.

                           STATEMENTS OF OPERATIONS



<TABLE>
<CAPTION>
                                               FOR THE THREE MONTHS ENDED        FOR THE YEARS ENDED DECEMBER 31,
                                                       MARCH 31,
                                                  1999           1998            1998           1997         1996
                                               ----------   ------------     -----------    -----------   -----------
                                               (unaudited)    (unaudited)
<S>                                            <C>            <C>            <C>            <C>           <C>
SALES AND SERVICE REVENUE                      $5,206,842     $5,221,260     $30,182,711    $13,529,639   $16,247,438
                                              -----------
COST OF SALES AND SERVICE
  REVENUE                                       2,925,944      3,114,364      18,795,435      6,612,267     8,859,881
                                               ----------   ------------     -----------    -----------   -----------
         Gross margin                           2,280,898      2,106,896      11,387,276      6,917,372     7,387,557
                                               ----------   ------------     -----------    -----------   -----------
OPERATING EXPENSES:
  Operations and engineering                      712,768        610,833       2,752,167      2,129,230     1,797,373
  Sales and marketing                             729,607        604,310       3,231,050      2,319,025     2,622,972
  General and administrative                      775,536        497,193       2,787,306      1,325,614     1,462,074
  Depreciation                                    291,919        272,377       1,085,381        887,452       759,498
                                               ----------   ------------     -----------    -----------   -----------
         Total operating expenses               2,509,830      1,984,713       9,855,904      6,661,321     6,641,917
                                               ----------   ------------     -----------    -----------   -----------
OPERATING INCOME                                 (228,932)       122,183       1,531,372        256,051       745,640

INTEREST INCOME, net                               30,485         38,762         171,386        151,824       148,357
                                               ----------   ------------     -----------    -----------   -----------
NET INCOME (LOSS)                              $ (198,447)    $  160,945     $ 1,702,758    $   407,875   $   893,997
                                               ==========   ============     ===========    ===========   ===========
</TABLE>


       The accompanying notes are an integral part of these statements.

                                      F-3
<PAGE>

                             AVDATA SYSTEMS, INC.

                 STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

             FOR THE YEARS ENDED DECEMBER 31, 1998, 1997, AND 1996

<TABLE>
<CAPTION>
                                                    Series A
                                                 Preferred Stock             Common Stock           Additional
                                              ------------------------------------------------        Paid-In
                                                Shares       Amount        Shares       Amount        Capital
                                              ----------    ---------    -----------   --------     ----------
<S>                                           <C>           <C>          <C>           <C>          <C>
BALANCE, DECEMBER 31, 1995                    20,005,000    $ 200,050      5,851,643   $ 58,516     $7,607,267

 Shares issued related to stock option
    exercises                                          0            0         75,500        755          6,871
  Purchase of treasury stock                           0            0              0          0              0
  Net income                                           0            0              0          0              0
                                             -----------    ---------     ----------   --------     ----------
BALANCE, DECEMBER 31, 1996                    20,005,000    $ 200,050      5,927,143   $ 59,271     $7,614,138

  Preferred stock converted to common
    stock                                    (20,005,000)    (200,050)    20,005,000    200,050              0
  Shares issued related to stock option
    exercises                                          0            0      2,767,500     27,675        286,460
  Purchase of treasury stock                           0            0              0          0              0
  Net income                                           0            0              0          0              0
  Notes receivable from officers and
    employees, net                                     0            0              0          0              0
                                             -----------    ---------     ----------   --------     ----------
BALANCE, DECEMBER 31, 1997                             0    $       0     28,699,643   $286,996     $7,900,598

  Shares issued to stock option
    exercises                                          0            0      2,854,689     28,547        304,978
  Purchase of treasury stock                           0            0              0          0              0
  Net income                                           0            0              0          0              0
  Notes receivable from officers and                   0            0              0          0              0
    employees, net                                     0            0              0          0              0
                                             -----------    ---------     ----------   --------     ----------
BALANCE, DECEMBER 31, 1998                             0    $       0     31,554,332   $315,543     $8,205,576

  Shares issued related to stock option
    exercises                                          0    $       0        196,000      1,960         59,948
  Purchase of treasury stock                           0            0              0          0              0
  Net income                                           0            0              0          0              0
  Notes receivable from officers and
    employees, net                                     0            0              0          0              0
                                             -----------    ---------     ----------   --------     ----------
BALANCE, DECEMBER 31, 1999                             0    $       0     31,750,332   $317,503     $8,265,524
                                             ===========    =========     ==========   ========     ==========
</TABLE>


<TABLE>
<CAPTION>

                                                                            Notes        Retained
                                                  Treasury Stock          Receivable     Earnings         Total
                                              -----------------------       From       (Accumulated)   Stockholders
                                                Shares       Amount        Officers       Deficit         Equity
                                              ----------    ---------    -----------   -------------   ------------
<S>                                           <C>           <C>          <C>           <C>             <C>
BALANCE, DECEMBER 31, 1995                     88,393      $    (884)   $         0   $(2,982,245)     $4,882,704

 Shares issued related to stock option
    exercises                                       0              0              0             0           7,626
  Purchase of treasury stock                    8,824         (7,500)             0             0          (7,500)
  Net income                                        0              0              0       893,997         893,997
                                             --------      ---------    -----------   -----------      ----------
BALANCE, DECEMBER 31, 1996                     97,217      $  (8,384)   $         0   $(2,088,248)     $5,776,827

  Preferred stock converted to common
    stock                                           0              0              0             0               0
  Shares issued related to stock option
    exercises                                       0              0              0             0         314,135
  Purchase of treasury stock                   99,992        (84,993)             0             0         (84,993)
  Net income                                        0              0              0       407,875         407,875
  Notes receivable from officers and
    employees, net                                  0              0        (72,062)            0         (72,062)
                                             --------      ---------    -----------   -----------      ----------
BALANCE, DECEMBER 31, 1997                    197,209      $ (93,377)   $   (72,062)  $(1,680,373)     $6,341,782

  Shares issued to stock option
    exercises                                       0              0              0             0         333,525
  Purchase of treasury stock                  717,621        (71,804)             0             0         (71,804)
  Net income                                        0              0              0     1,702,758       1,702,758
  Notes receivable from officers and
    employees, net                                  0              0       (153,049)            0        (153,049)
                                             --------      ---------    -----------   -----------      ----------
BALANCE, DECEMBER 31, 1998                    914,830      $(165,181)   $  (225,111)  $    22,385      $8,153,212

  Shares issued related to stock option
    exercises                                       0      $       0              0             0          61,908
  Purchase of treasury stock                   63,332        (53,832)             0             0         (53,832)
  Net income                                        0              0              0      (198,447)       (198,447)
  Notes receivable from officers and
    employees, net                                  0              0         12,452             0          12,452
                                             --------      ---------    -----------   -----------      ----------
BALANCE, DECEMBER 31, 1999                    978,162      $(219,013)   $  (212,659)  $  (176,062)     $7,975,293
                                             ========      =========    ===========   ===========      ==========
</TABLE>


        The accompanying notes are an integral part of these statements.
<PAGE>

                              AVDATA SYSTEMS, INC.

                            STATEMENTS OF CASH FLOWS

             FOR THE YEARS ENDED DECEMBER 31, 1998, 1997, AND 1996

<TABLE>
<CAPTION>
                                                                    Three Months Ended
                                                                         March 31,
                                                                ------------------------
                                                                     1999        1998          1998          1997          1996
                                                                ------------  ----------   -----------   -----------   -----------
<S>                                                               <C>         <C>          <C>           <C>           <C>
                                                                       (UNAUDITED)
CASH FLOWS FROM OPERATING ACTIVITIES:
 Net income                                                      $ (198,447)  $  160,945   $ 1,702,758   $   407,875   $   893,997
  Adjustments to reconcile net income to net cash provided by
   operating activities:
     Depreciation                                                   291,919      272,377     1,085,381       887,452       759,498
     Changes in assets and liabilities:
      Accounts receivable, net                                    1,383,360   (1,375,376)   (1,216,440)      513,054    (2,265,221)
      Inventory                                                     114,665   (1,127,522)     (702,415)      182,110      (323,252)
      Other current and noncurrent assets                          (323,147)     (54,929)     (422,458)     (136,828)      115,980
      Accounts payable, income taxes payable, and accrued
       liabilities                                                 (930,598)   3,178,907     2,164,104    (2,324,964)    3,112,683
      Deferred revenues                                            (285,846)    (915,058)   (1,106,720)    1,522,891      (419,205)
                                                                ------------  ----------   -----------   -----------   -----------
       Total adjustments                                            250,353      (21,601)     (198,548)      643,715       980,483
                                                                ------------  ----------   -----------   -----------   -----------
       Net cash provided by operating activities                     51,906      139,344     1,504,210     1,051,590     1,874,480
                                                                ------------  ----------   -----------   -----------   -----------
CASH FLOWS FROM INVESTING ACTIVITIES:
 Capital expenditures, net                                          (45,661)    (182,529)   (1,340,529)   (1,606,602)   (1,768,356)
                                                                ------------  ----------   -----------   -----------   -----------
CASH FLOWS FROM FINANCING ACTIVITIES:
 (Repayments of) proceeds from note payable                          (8,868)     (26,260)      (54,774)      140,198             0
 Proceeds from issuance of common stock                              61,908       65,376       333,525       314,135         7,626
 Notes receivable from officers and employees, net                   12,452       16,639      (153,049)      (72,062)            0
 Purchase of treasury stock                                         (53,832)     (65,375)      (71,804)      (84,993)       (7,500)
                                                                ------------  ----------   -----------   -----------   -----------
      Net cash provided by financing activities                      11,660       (9,620)       53,898       297,278           126
                                                                ------------  ----------   -----------   -----------   -----------

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS                 17,905      (52,805)      217,579      (257,734)      106,250


CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR                    3,505,172    3,287,593     3,287,593     3,545,327     3,439,077
                                                                ------------  ----------   -----------   -----------   -----------
CASH AND CASH EQUIVALENTS AT END OF YEAR                         $3,523,077   $3,234,788   $ 3,505,172   $ 3,287,593   $ 3,545,327
                                                                ============  ==========   ===========   ===========   ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-5
<PAGE>

                              AVDATA SYSTEMS, INC.



                         NOTES TO FINANCIAL STATEMENTS


                           DECEMBER 31, 1998 AND 1997

1.   GENERAL ORGANIZATION AND BUSINESS

   AvData Systems, Inc. (the "Company") was incorporated on May 20, 1988 in the
   state of Delaware.  The Company provides network solutions for corporate
   users and network infrastructure for wireless system operators.  The Company
   designs, integrates, manages, and operates data communication networks using
   satellite and terrestrial technology.  The Company is headquartered in
   Atlanta, Georgia, and markets its services and products to corporate
   customers located primarily in the southeastern United States and to wireless
   operators nationwide.

2.   SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

   Unaudited Interim Financial Information

   The accompanying financial statements and footnote data as of March 31, 1999
   and for the three-month periods ended March 31, 1998 and 1999 are unaudited.
   In the opinion of the management of the Company, these financial statements
   reflect all adjustments, consisting only of normal and recurring adjustments,
   necessary for a fair presentation of the financial statements.  The results
   of operations for the three-month period ended March 31, 1999 are not
   necessarily indicative of the results that may be expected for the full
   year.

   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 disclosures of
   contingent assets and liabilities at the date of the financial statements and
   reported amounts of revenues and expenses during the reporting period.
   Actual results could differ from those estimates.

   Plant and Equipment

   Plant and equipment are recorded at cost and are depreciated using the
   straight-line method over the estimated useful lives for financial reporting
   purposes, as follows:

          Network and related equipment             Three to ten years
          Office furniture and equipment            Five years
          Computer equipment                        Five years
          Leasehold improvements                    Five to seven years

   Maintenance and repairs are charged to expense as incurred.

                                      F-6
<PAGE>

   Income Taxes

   Deferred income taxes are determined in accordance with Statement of
   Financial Accounting Standards ("SFAS") No. 109, "Accounting for Income
   Taxes."  This approach results in the recognition of deferred tax assets and
   liabilities for the expected future tax consequences of temporary differences
   between the book carrying amounts and the tax basis of assets and
   liabilities.

   Inventory

   Inventory consists primarily of data communications equipment held for resale
   and is valued at the lower of first-in, first-out cost or market, based on
   estimated realizable value.  Work-in-process cost includes component
   equipment and third-party installation costs.

   Inventory balances at December 31, 1998 and 1997 were as follows:

<TABLE>
<CAPTION>
                                                                       1998             1997
                                                                 -----------------  -------------
<S>                                                              <C>                <C>
Data communications equipment                                           $1,035,078       $443,499
Work-in-process                                                            413,258        302,422
                                                                 -----------------  -------------
       Total                                                            $1,448,336       $745,921
                                                                 =================  =============
</TABLE>

   Cash And Cash Equivalents

   The Company considers temporary cash investments to be cash equivalents.
   Temporary cash investments are securities with original maturities of 90 days
   or less.

   Revenue Recognition

   The Company earns revenue by selling and integrating data communications
   equipment and by providing data communications services.  The Company
   recognizes revenue and the related costs on equipment sales and integration
   upon acceptance by the customer.  Service revenues and related direct costs,
   consisting primarily of maintenance and bandwidth expenses, are recognized as
   the services are provided.

   In 1995, the Company entered into a long-term contract with one of its
   customers for which it records revenue upon acceptance by the customer.  The
   Company has recorded $0 and $585,378 as accrued costs on the long-term
   contract at December 31, 1998 and 1997, respectively, in the accompanying
   balance sheets as deferred revenue.  These amounts reflect estimated expenses
   not yet incurred related to certain components of the contract.  This
   contract was terminated.  Other amounts of deferred revenue consist primarily
   of prepayments of services to be provided.

   Presentation

   Certain prior year amounts have been reclassified to conform with the current
   year presentation.

   Long-lived Assets


   In 1997, the Company adopted SFAS No. 121, "Accounting for the Impairment of
   Long-Lived Assets and Long-Lived Assets to Be Disposed Of," which requires
   impairment losses

                                      F-7
<PAGE>

   to be recorded on long-lived assets used in operations when indications of
   impairment are present and the undiscounted cash flows estimated to be
   generated by those assets are less than the assets' carrying amount. The
   adoption of SFAS No. 121 had no impact on the Company's financial position or
   results of operations.

3.   PREFERRED STOCK

   On January 1, 1997, all Series A preferred stock automatically converted into
   fully paid and noncumulative shares of common stock of the Company at the
   rate of one share of common stock for each share of preferred stock.
   Accordingly, no Series A preferred stock was outstanding at December 31, 1998
   and 1997.

   If Series A preferred stock had been issued, the Series A preferred
   stockholders would have been entitled to receive, when and as declared by the
   board of directors, noncumulative dividends in an amount equal to $.0034 per
   share per year in preference to any dividends on the outstanding shares of
   common stock.  Dividends  are payable only if and when declared by the board
   of directors.  In the event of any dissolution, liquidation, or winding down
   of the Company, Series A preferred stockholders would be entitled to $.10 per
   share in liquidation preferences before any distributions to common
   stockholders.

4.   STOCK OPTIONS

   In 1996, the board of directors and stockholders approved the amended and
   restated stock option plan (the "1988 Option Plan"), which provides for the
   issuance of up to 8,500,000 shares of common stock.  Although options granted
   under the 1988 Option Plan generally are intended to qualify as incentive
   stock options, nonqualified options have also been granted under the 1988
   Option Plan.  Total options outstanding under the 1988 Option Plan were
   1,026,000, 4,367,500, and 7,192,000 at December 31, 1998, 1997, and 1996,
   respectively.  Options qualified as incentive stock options are exercisable
   at a price equal to 100% of the fair market value at the date of grant as
   determined by the board of directors.  Options granted generally become
   exercisable 50% after two years and an additional 25% per annum for the next
   two years and remain exercisable for five years from the grant date.  The
   1988 Option Plan terminated in June 1998.

   In 1997, the board of directors and stockholders approved the 1997 stock
   option plan (the "1997 Option Plan").  The 1997 Option Plan provides for the
   issuance of up to 1,196,000 shares of common stock which was the balance of
   the shares available under the 1988 Option Plan at the time the 1997 Option
   Plan was adopted.  Total options outstanding under the 1997 Option Plan were
   136,000 and 242,000 at December 31, 1998 and 1997, respectively.  Options
   granted under the 1997 Option Plan are exercisable at a price equal to 100%
   of the fair market value at the date of grant as determined by the board of
   directors.  Options granted generally become exercisable 50% after two years
   and an additional 25% per annum for the next two years and remain exercisable
   for ten years from the grant date.  The 1997 Option Plan terminates in April
   2007.

                                      F-8
<PAGE>

   The following is a summary of stock option activity:

<TABLE>
<CAPTION>
                                                                                            Total
                                                         Incentive                          Shares
                                                           Stock            Stock           Under              Exercise
                                                          Options          Options          Option              Price
                                                     --------------       ---------      -----------         ------------
<S>                                                  <C>                  <C>            <C>                 <C>
Outstanding, December 31, 1995                            6,737,500         200,000        6,937,500          $0.10-$1.50
 Granted                                                    440,000               0          440,000          $      0.75
 Exercised                                                  (75,500)              0          (75,500)         $0.10-$0.25
 Forfeited                                                 (110,000)              0         (110,000)         $0.25-$1.50
                                                     --------------       ---------      -----------
Outstanding, December 31, 1996                            6,992,000         200,000        7,192,000          $0.10-$0.75
 Granted                                                    274,000               0          274,000          $      0.85
 Exercised                                               (2,767,500)              0       (2,767,500)         $0.10-$0.75
 Forfeited                                                  (89,000)              0          (89,000)         $0.25-$0.85
                                                     --------------       ---------      -----------
Outstanding, December 31, 1997                            4,409,500         200,000        4,609,500          $0.10-$0.85
 Granted                                                          0               0                0          $      0.00
 Exercised                                               (2,854,689)              0       (2,854,689)         $0.25-$0.75
 Forfeited                                                 (592,811)              0         (592,811)         $0.25-$0.85
                                                     --------------       ---------      -----------
Outstanding, December 31, 1998                              962,000         200,000        1,162,000          $0.10-$0.85
                                                     ==============       =========      ===========
Number of options exercisable                               501,875         200,000
                                                     ==============       =========
Exercise price of options exercisable at
 December 31, 1998                                      $0.25-$0.85          $ 0.10
</TABLE>

   Statement of Financial Accounting Standards No. 123

   During 1995, the Financial Accounting Standards Board issued SFAS No. 123,
   "Accounting for Stock-Based Compensation," which defines a fair value-based
   method of accounting for an employee stock option or similar equity
   instrument and encourages all entities to adopt that method of accounting for
   all of their employee stock compensation plans.  However, it also allows an
   entity to continue to measure compensation cost for those plans using the
   method of accounting prescribed by Accounting Principles Board ("APB")
   Opinion No. 25, "Accounting for Stock Issued to Employees."  Entities
   electing to remain with the accounting methodology required by APB Opinion
   No. 25 must make pro forma disclosures of net income and, if presented,
   earnings per share, as if the fair value-based method of accounting defined
   in SFAS No. 123 had been applied.

   The Company has elected to account for its stock-based compensation plans
   under APB Opinion No. 25; however, the Company has computed, for pro forma
   disclosure purposes, the value of all options granted during 1998, 1997, and
   1996 using the Black-Scholes option pricing model prescribed by SFAS No. 123
   using the following weighted average assumptions:

        Risk-free interest rate              6.48%-6.96%
        Expected dividend yield              0%
        Expected lives                       Five years
        Expected volatility                  0%

                                      F-9
<PAGE>

   The weighted average fair value of options for the Company's stock granted to
   employees in 1997 and 1996 was $.85 and $.75 per share, respectively.  The
   total value of options for the Company's stock granted to employees was
   approximately $0, $78,000, and $89,000 during 1998, 1997, and 1996,
   respectively, which would be amortized on a pro forma basis over the life of
   the options.  If the Company had accounted for these plans in accordance with
   SFAS No. 123, the Company's net income for the years ended December 31, 1998
   and 1997 would have been as follows:

<TABLE>
                                                              AS          PRO
                                                            REPORTED     FORMA
                                                           ---------- ----------
          <S>                                              <C>        <C>
          Net income for the year ended December 31:
                    1998                                   $1,702,758 $1,660,961
                    1997                                      407,875    381,961
                    1996                                      893,997    849,575
</TABLE>

   Because the SFAS No. 123 method of accounting has not been applied to options
   granted prior to January 1, 1995, the resulting pro forma compensation cost
   may not be representative of that to be expected in future years.  The
   following table summarizes the Company's stock option transactions under the
   option plans:

<TABLE>
<CAPTION>
                                                                                      WEIGHTED
                                                                      NUMBER          AVERAGE
                                                                        OF             PRICE
                                                                      SHARES         PER SHARE
                                                                  --------------   --------------
<S>                                                               <C>              <C>
Outstanding at December 31, 1995                                       6,937,500            $0.24
 Granted                                                                 440,000             0.75
 Exercised                                                               (75,500)            0.10
 Forfeited                                                              (110,000)            0.76
                                                                  --------------
Outstanding at December 31, 1996                                       7,192,000             0.27
 Granted                                                                 274,000             0.85
 Exercised                                                            (2,767,500)            0.10
 Forfeited                                                               (89,000)            0.69
                                                                  --------------
Outstanding at December 31, 1997                                       4,609,500             0.40
 Granted                                                                       0             0.00
 Exercised                                                            (2,854,689)            0.29
 Forfeited                                                              (592,811)            0.53
                                                                  --------------
Outstanding at December 31, 1998                                       1,162,000             0.64
                                                                  ==============
</TABLE>

   At December 31, 1998, 501,875 incentive stock options with a weighted average
   exercise price of $.56 per share and 200,000 stock options with a weighted
   average exercise price of $.10 per share were exercisable.  At December 31,
   1997, 3,113,000 incentive stock options with a weighted average exercise
   price of $.32 per share and 200,000 stock options with a weighted average
   exercise price of $.10 per share were exercisable.  At December 31, 1996,
   5,574,500 incentive stock options with a weighted average exercise price of
   $.18 per share

                                     F-10
<PAGE>

   and 200,000 stock options with a weighted average exercise price of $.10 per
   share were exercisable.

5.   INCOME TAXES

   As of December 31, 1998 and 1997, the Company's net operating loss ("NOL")
   carryforwards available to offset its future income tax liability were
   approximately $550,000 and $1,900,000, respectively; accordingly, no
   provision for income taxes was made.  These carryforwards begin to expire in
   2007.  Additionally, the utilization of existing NOL carryforwards may be
   limited in future years, if significant ownership changes were to occur.

   As of December 31, 1998 and 1997, the significant components of the Company's
   deferred tax assets and liabilities were as follows:

<TABLE>
<CAPTION>
                                                                      1998              1997
                                                                 --------------   ----------------
Assets:
<S>                                                              <C>              <C>
 Deferred revenue                                                     $       0        $   939,000
 NOL carryforwards                                                      210,000            724,000
 Alternative minimum tax ("AMT") credit carryforward
                                                                        489,000             89,000
 Accrued taxes                                                           64,600             19,000
 Allowance for doubtful accounts                                        105,000             30,000
 Other                                                                    5,700             60,000
 Depreciation                                                            70,000                  0
Liabilities:
 Depreciation                                                                 0           (306,000)
                                                                 --------------   ----------------
                                                                        944,300          1,555,000
Valuation allowance                                                    (455,300)        (1,466,000)
                                                                 --------------   ----------------
Deferred tax assets                                                   $ 489,000        $    89,000
                                                                 ==============   ================
</TABLE>

   The deferred tax consequences of temporary differences in reporting items for
   financial statement and income tax purposes are recognized, if appropriate.
   Realization of the future tax benefits related to the deferred tax assets is
   dependent on many factors, including the Company's ability to generate
   taxable income within the net operating loss carryforward period.  Management
   has considered these factors in reaching its conclusion as to the valuation
   allowance for financial reporting purposes.

   In 1998 and 1997, the Company was subject to the AMT and recorded related tax
   expense in the amount of $400,000 and $89,000, respectively.  As the credit
   obtained from the payment of the AMT does not expire, the Company has also
   recognized an offsetting deferred tax benefit of this temporary difference in
   1998 and 1997.

                                      F-11
<PAGE>


6.   COMMITMENTS AND CONTINGENCIES AND CONCENTRATIONS

   Lease Commitments

   The Company leases certain office space and equipment under noncancelable
   operating lease agreements.  Amounts expensed under these agreements were
   $273,294, $269,449, and $205,872 for the years ended December 31, 1998, 1997,
   and 1996, respectively.

   At December 31, 1998, future minimum rental payments under noncancelable
   operating leases are approximately as follows:

               Year ended:
                 1999                                       $285,842
                 2000                                        293,570
                 2001                                        127,435
                 2002                                          2,322
                 2003                                              0
                                                            --------
                                                            $709,169
                                                            ========

   Satellite Bandwidth Commitments


   A portion of the Company's operations is dependent upon the availability of
   sufficient satellite bandwidth capacity.  At December 31, 1998, the Company
   had four long-term purchase agreements for satellite bandwidth capacity.
   Satellite bandwidth expenses under these agreements were $2,592,669,
   $1,932,507, and $1,131,402 for the years ended December 31, 1998, 1997, and
   1996, respectively.  The Company's commitment for 1999 under these agreements
   is approximately $3,400,000.

   Significant Customers

   One customer made up more than 10% of sales and service revenue of the
   Company for the years ended December 31, 1998, 1997, and 1996.  A different
   customer made up more than 10% of sales and service revenue of the Company
   for the year ended December 31, 1996.  These customers accounted for
   approximately 72%, 30%, and 10% of the Company's revenue in 1998, 1997, and
   1996, respectively.

   Source of Equipment

   The Company purchases the majority of its equipment from a single major
   manufacturer and depends on this manufacturer for its continuing source of
   equipment supply.  In 1994, the Company executed a multiyear agreement to
   provide marketing and sales services to this manufacturer.  Under this
   agreement, the Company received $0, $972,000, and $1,005,000 of funding from
   this supplier during 1998, 1997, and 1996, respectively.  Of the total amount
   available in fiscal 1998, 1997, and 1996, $0, $1,045,755, and $1,599,132,
   respectively, are included as sales revenue in the statements of operations.

   Contingencies

   Various claims and proceedings of a nature considered normal to its business
   are pending against the Company.  Based on a review of current facts and
   circumstances, management has provided for what it believes to be a
   reasonable estimate of the exposure to loss associated with these matters.
   While acknowledging the uncertainties surrounding these

                                      F-12
<PAGE>

   matters, management believes that resolution of these matters will not result
   in any significant liability to the Company in relation to its financial
   position or liquidity.

7.   CREDIT FACILITIES

   In 1997, the Company entered into a term loan agreement to finance the
   purchase of office equipment.  That equipment secures the loan.  The loan
   bears interest at 8.25% and requires minimum monthly payments of $5,006.  The
   agreement terminates July 1, 2000.

   The Company also maintains a $750,000 bank line of credit secured by network
   equipment, computer equipment, and software at the prime rate with an initial
   maturity of one year and renewable for one-year intervals upon maturity.  The
   Company has never drawn on this line; accordingly, no amounts were
   outstanding at December 31, 1998 and 1997.

   The Company believes that the fair value of these financial instruments
   approximated the carrying value for the years ended December 31, 1998 and
   1997.

8.   RELATED-PARTY TRANSACTIONS

   In 1998, 1997, and 1996, the Company paid approximately $4,800, $85,000, and
   $89,000, respectively, to a related party for digital audio broadcast and
   production work.  The related party's chairman and chief executive officer is
   a director of the Company.

   In 1997 and 1996, the Company paid approximately $14,000 and $114,000,
   respectively, to a related party for computer equipment and supplies.  The
   related party's former president is a shareholder of the Company.

   In 1998, 1997, and 1996, the Company recorded revenues of approximately
   $74,000, $102,000, and $71,000, respectively, for communications services
   provided to a related party.  Additionally, the Company incurred expenses of
   approximately $28,000, $26,000, and $29,000 in 1998, 1997, and 1996,
   respectively, for insurance coverage obtained from the related party.
   Certain directors of the Company hold a significant interest in the related
   party.

   The Company uses the services of, and sometimes provides services to, a
   related party and certain of its subsidiaries during the normal course of
   business.  Total expense for the services received was approximately $50,000,
   $59,000, and $58,000 for the years ended December 31, 1998, 1997, and 1996,
   respectively.  Revenue earned was approximately $0, $6,000, and $102,000 for
   the years ended December 31, 1998, 1997 and 1996, respectively.

   In connection with options exercised, the Company loaned officers and
   employees $210,000, $72,062, and $0 in 1998, 1997, and 1996, respectively.
   These recourse notes are secured by common stock of the Company and an
   unconditional promise to pay by the officers and employees.  These notes bear
   interest at 6.5% and are scheduled to be paid in full on various dates
   through December 31, 2000.

                                      F-13
<PAGE>

   In the Company's opinion, all of its related-party transactions have been
   completed on an arm's-length basis.

9.   401(k) plan

   The Company has a 401(k) plan whereby substantially all employees are
   eligible to participate in the plan and may contribute up to 15% of their
   compensation.  In 1998, the plan provided for employer matching of up to a
   maximum of one-half of the first 4% of the participating employee's
   compensation, which vests ratably over six years of service.  In future
   years, the plan provides for employer matching of up to a maximum of one-half
   of the first 2% of the participating employee's compensation, with the same
   vesting terms.  The Company's contributions to the 401(k) plan totaled
   approximately $78,700, $0, and $0 for the years ended December 31, 1998,
   1997, and 1996, respectively.

10.  SUBSEQUENT EVENT (UNAUDITED)

   On April 15, 1999 the Company entered into an Agreement and Plan of Merger
   (the "Agreement") with ITC/\DeltaCom, Inc., pursuant to which the Company
   will be merged with and into a wholly owned subsidiary of ITC/\DeltaCom. Each
   outstanding share of AvData common stock, other than those held in treasury,
   will be converted into a number of shares of ITC/\DeltaCom common stock equal
   to the Exchange Ratio, as defined in the Agreement, plus the right to
   possibly receive future shares of ITC/\DeltaCom common stock in accordance
   with formulas specified in the Agreement that are based upon certain revenues
   generated by AvData during certain portions of 1999.

                                      F-14

<PAGE>


                                   APPENDIX A



                         AGREEMENT AND PLAN OF MERGER

                                  BY AND AMONG

                              ITC/\DELTACOM, INC.,

                           INTERSTATE FIBERNET, INC.,

                                      and

                              AVDATA SYSTEMS, INC.





                          DATED AS OF APRIL 15, 1999

                                      A-1

<PAGE>

<TABLE>
<CAPTION>
                               TABLE OF CONTENTS

                                                                        Page
                                                                        ----
<S>        <C>                                                          <C>
ARTICLE I  THE MERGER...................................................  1
   SECTION 1.1. The Merger..............................................  9
   SECTION 1.2. Effective Time..........................................  9
   SECTION 1.3. Effect of the Merger....................................  9
   SECTION 1.4. Certificate of Incorporation; Bylaws.................... 10
   SECTION 1.5. Directors and Officers.................................. 10
   SECTION 1.6. Closing................................................. 10
   SECTION 1.7. Subsequent Actions...................................... 10
   SECTION 1.8. Tax Treatment of the Merger............................. 10
ARTICLE II  CONVERSION OF SECURITIES; EXCHANGE OF
   CERTIFICATES......................................................... 11
   SECTION 2.1. Conversion of Securities................................ 11
   SECTION 2.2. Conversion of Merger Sub Shares......................... 12
   SECTION 2.3. Escrow Stock; Stockholders' Representative.............. 12
   SECTION 2.4. Exchange of Company Common Stock Certificates........... 13
   SECTION 2.5. Appraisal Rights........................................ 15
   SECTION 2.6. Stock Transfer Books.................................... 15
   SECTION 2.7. Company Stock Options................................... 15
   SECTION 2.8. Earnout Shares.......................................... 17
ARTICLE III  REPRESENTATIONS AND WARRANTIES OF THE COMPANY.............. 19
   SECTION 3.1. Organization and Qualification.......................... 19
   SECTION 3.2. Subsidiaries............................................ 19
   SECTION 3.3. Certificate of Incorporation and Bylaws................. 19
   SECTION 3.4. Capitalization.......................................... 20
   SECTION 3.5. Authority............................................... 20
   SECTION 3.6. No Conflict; Required Filings and Consents.............. 20
   SECTION 3.7. The Company Financial Statements; No Liabilities........ 22
   SECTION 3.8. Accounts Receivable..................................... 22
   SECTION 3.9. Absence of Certain Changes or Events.................... 22
   SECTION 3.10. Assets................................................. 23
   SECTION 3.11. Leases................................................. 23
   SECTION 3.12. Contracts.............................................. 23
   SECTION 3.13.  Debt Instruments...................................... 24
   SECTION 3.14. Real Property.......................................... 24
   SECTION 3.15 Intellectual Property................................... 24
   SECTION 3.16. Environmental Matters.................................. 26
   SECTION 3.17 Absence of Litigation................................... 26
   SECTION 3.18. Books and Records...................................... 27
   SECTION 3.19. Taxes and Assessments.................................. 27
   SECTION 3.20.  Customers............................................. 28
   SECTION 3.21.  Certain Business Practices............................ 28
   SECTION 3.22. Employment Matters..................................... 28
   SECTION 3.23. Employee Benefit Plans................................. 29
   SECTION 3.24. Transactions with Related Parties...................... 30
   SECTION 3.25. Insurance.............................................. 30
   SECTION 3.26. Brokers................................................ 31
   SECTION 3.27. Minute Books........................................... 31
   SECTION 3.28. Reorganization Treatment............................... 31
</TABLE>

                                      A-2
<PAGE>

<TABLE>
<CAPTION>

   <S>            <C>                                                    <C>
   SECTION 3.29.  Board Recommendation.................................. 31
   SECTION 3.30.  Vote Required......................................... 31
   SECTION 3.31.  State Takeover Statutes; Certain Charter Provisions... 31
   SECTION 3.32. Disclosure............................................. 32
ARTICLE IV  REPRESENTATIONS AND WARRANTIES OF ACQUIROR.................. 32
   SECTION 4.1. Organization and Qualification.......................... 32
   SECTION 4.2. Certificate of Incorporation and Bylaws................. 32
   SECTION 4.3. Capitalization.......................................... 32
   SECTION 4.4. Authority............................................... 33
   SECTION 4.5. No Conflict; Required Filings and Consents.............. 33
   SECTION 4.6. Brokers................................................. 33
   SECTION 4.7. Reorganization Treatment................................ 33
   SECTION 4.8. Disclosure.............................................. 34
ARTICLE V  REPRESENTATIONS AND WARRANTIES  OF ACQUIROR AND
   MERGER SUB........................................................... 34
   SECTION 5.1. Organization and Qualification.......................... 34
   SECTION 5.2. Certificate of Incorporation and Bylaws................. 34
   SECTION 5.3. Authority............................................... 34
   SECTION 5.4. No Conflict; Required Filings and Consents.............. 35
ARTICLE VI  COVENANTS................................................... 35
   SECTION 6.1. Affirmative Covenants of the Company.................... 35
   SECTION 6.2. Negative Covenants of the Company....................... 35
   SECTION 6.3.  Certain Tax Matters.................................... 37
ARTICLE VII  ADDITIONAL AGREEMENTS...................................... 38
   SECTION 7.1.  Registration Statement; Proxy Statement................ 38
   SECTION 7.2.  Company Stockholder Approval........................... 39
   SECTION 7.3.  Appropriate Action; Consents; Filings.................. 40
   SECTION 7.4.  Update Disclosure; Breaches............................ 41
   SECTION 7.5.  Public Announcements................................... 41
   SECTION 7.6.  Unaudited Financial Information........................ 41
   SECTION 7.7. Access to Information................................... 41
   SECTION 7.8. Confidentiality......................................... 42
   SECTION 7.9. No Solicitation......................................... 42
   SECTION 7.10. Employees.............................................. 43
   SECTION 7.11. Company Affiliate Agreements........................... 44
ARTICLE VIII  CLOSING CONDITIONS........................................ 44
   SECTION 8.1. Conditions to Obligations of the Parties................ 44
   SECTION 8.2. Additional Conditions to Obligations of Acquiror........ 45
   SECTION 8.3. Additional Conditions to Obligations of the Company..... 47
ARTICLE IX  TERMINATION, AMENDMENT AND WAIVER........................... 47
   SECTION 9.1. Termination............................................. 47
   SECTION 9.2. Effect of Termination................................... 49
   SECTION 9.3. Amendment............................................... 49
   SECTION 9.4. Waiver.................................................. 49
   SECTION 9.5. Expenses................................................ 49
ARTICLE X  SURVIVAL OF REPRESENTATIONS; REMEDIES........................ 49
   SECTION 10.1. Survival of Representations............................ 49
   SECTION 10.2. Indemnification by the Company Stockholders............ 50
   SECTION 10.3. Third Party Claims..................................... 51
   SECTION 10.4. [OMITTED].............................................. 53
   SECTION 10.5. Subrogation............................................ 53
   SECTION 10.6. Remedies Cumulative.................................... 53
ARTICLE XI  GENERAL PROVISIONS.......................................... 53
   SECTION 11.1. Notices................................................ 53
</TABLE>

                                      A-3
<PAGE>

<TABLE>
<CAPTION>

   <S>           <C>                                                     <C>
   SECTION 11.2. Certain Definitions.................................... 55
   SECTION 11.3. Headings............................................... 57
   SECTION 11.4. Severability........................................... 57
   SECTION 11.5. Entire Agreement....................................... 57
   SECTION 11.6. Specific Performance................................... 57
   SECTION 11.7. Assignment............................................. 57
   SECTION 11.8. Third Party Beneficiaries.............................. 58
   SECTION 11.9. Governing Law.......................................... 58
   SECTION 11.10. Counterparts.......................................... 58
   SECTION 11.11. Fees and Expenses..................................... 58
</TABLE>

                                      A-4
<PAGE>

<TABLE>
<CAPTION>

                                   Schedules
                                   ---------
<S>           <C>
Schedule 3.1  Qualification to Do Business
Schedule 3.2  Subsidiaries and Investments
Schedule 3.4  Beneficial and Record Ownership of Shares of the Company
Schedule 3.6  Company Required Consents
Schedule 3.7  Changes in Accounting Methods
Schedule 3.9  Absence of Certain Changes or Events
Schedule 3.10  Encumbrances
Schedule 3.11  Leases
Schedule 3.12  Contracts
Schedule 3.13  Debt Instruments
Schedule 3.14  Real Property
Schedule 3.15  Intellectual Property
Schedule 3.17  Litigation
Schedule 3.19  Taxes and Assessments
Schedule 3.20  Customer Contacts
Schedule 3.22  Employment Matters
Schedule 3.23  Employee Benefit Plans
Schedule 3.24  Related Party Transactions
Schedule 3.25  Insurance
Schedule 3.26  Broker
Schedule 4.3  Capitalization
Schedule 8.2  Key Employees

                                    Exhibits
                                    --------

Exhibit A  [omitted]
Exhibit B  Form of Nondisclosure Agreement
Exhibit C  [omitted]
</TABLE>

                                      A-5
<PAGE>

<TABLE>
<CAPTION>
                            Index of Defined Terms
                            ----------------------

                                                               Section
                                                               -------

<S>                                                            <C>
Acquiror...................................................... PREAMBLE
Acquiror Indemnified Persons.................................. 10.2
Acquiror Material Adverse Effect.............................. 11.2(a)
Acquiror Shares............................................... 2.1(a)
affiliate..................................................... 11.2(b)
Affiliate Agreement........................................... 7.11
Agreement..................................................... PREAMBLE
Assets........................................................ 11.2(c)
Balance Sheet Date............................................ 3.7(b)
benefit liabilities........................................... 3.23(c)
Benefit Plans................................................. 3.23(a)
Bona Fide Proposal............................................ 7.9(a)
business day.................................................. 11.2(d)
Certificate of Merger......................................... 1.2
Closing....................................................... 1.6
Closing Date.................................................. 1.6
Code.......................................................... 1.8
Commonly Controlled Entity.................................... 3.23(a)
Communications Act............................................ 11.2(e)
Company....................................................... PREAMBLE
Company Affiliates............................................ 7.12
Company Balance Sheet......................................... 3.7(b)
Company Common Stock Certificate.............................. 2.1(a)
Company Licenses.............................................. 3.6(c)
Company Material Adverse Effect............................... 11.2(f)
Company Software.............................................. 11.2(a)
Company Stock Option.......................................... 2.7(a)
Company Stockholders.......................................... 11.2(h)
Competing Transaction......................................... 7.9(b)
Confidentiality Agreement.....................................  7.8
Contract Risk................................................. 10.2(a)
Contracts..................................................... 3.12(a)
control, controlled by, under common control with............. 11.2(i)
Determination Price........................................... 2.1(a)
DGCL.......................................................... PREAMBLE
Direct Recurring Revenue...................................... 2.8(f)
Dissenting Shares............................................. 2.5(a)
Earnout Amount................................................ 2.8(d)
Earnout Closing............................................... 2.8(b)
Earnout Per Share Price....................................... 2.8(f)
Earnout Shares................................................ 2.8(a)
Effective Time................................................ 1.2
employee benefit plans........................................ 3.23(a)
employee pension benefit plan................................. 3.23(a)
Encumbrances.................................................. 11.2(j)
Environmental Laws............................................ 3.16(b)(i)
ERISA......................................................... 3.23(a)
ERISA Matters................................................. 10.2(a)
ERISA Plan.................................................... 3.23(a)
Escrow Agent.................................................. 2.3(a)
</TABLE>

                                      A-6
<PAGE>

<TABLE>

<S>                                                            <C>
Escrow Agreement.............................................. 2.3(a)
Escrow Stock.................................................. 2.3(a)
Exchange Act.................................................. 7.1(a)
Exchange Agent................................................ 2.4(a)
Exchange Fund................................................. 2.4(a)
Exchange Ratio................................................ 2.1(a)
Exercise Price Multiple....................................... 2.7(a)
FCC........................................................... 11.2(k)
Financial Statements.......................................... 3.7(a)
Government Entity............................................. 11.2(l)
Hazardous Materials........................................... 3.16(b)(ii)
HSR Act....................................................... 11.2(m)
Identified Liabilities........................................ 11.2(n)
Indemnified Party............................................. 10.3(a)
Indemnifying Party............................................ 10.3(a)
Initial Consideration......................................... 2.1(a)
Initial Option Consideration.................................. 2.7(a)
Intellectual Property......................................... 11.2(o)
Key Employees................................................. 3.22(a)
Laws.......................................................... 11.2(p)
Licenses...................................................... 11.2(q)
Litigation Matters............................................ 10.2(a)
Losses........................................................ 11.2(r)
Merger........................................................ 1.1
Merger Stock.................................................. 2.1(a)
Merger Sub.................................................... PREAMBLE
Multiemployer Plan............................................ 3.23(d)
Nasdaq........................................................ 2.1(a)
National Accounts Reps........................................ 3.22(a)
New Option.................................................... 2.7(a)
New Recurring Channel Sales................................... 2.8(f)
Non-Recurring Revenue......................................... 2.8(f0
Noncompetition Agreements..................................... 7.10
Nondisclosure Agreements...................................... 8.2(q)
Option Per Share Price........................................ 2.7(a)
Per Share Price............................................... 2.1(a)
person........................................................ 11.2(s)
plan of reorganization........................................ 1.8
Post Signing Returns.......................................... 6.3
Proxy Statement............................................... 7.1
PUC Matters................................................... 10.2(a)
qualified..................................................... 3.23(b)
Real Property................................................. 3.14
Registration Statement........................................ 7.1
Sales Tax Matter.............................................. 11.2(n)
SEC........................................................... 11.2(t)
Securities Act................................................ 7.1(a)
Software...................................................... 3.14(h)
Stockholder's Percentage...................................... 11.2(v)
Stockholders' Representative.................................. 2.3(b)
Subsidiary.................................................... 11.2(w)
Surviving Corporation......................................... 1.1
Tax Matters................................................... 10.2(a)
Taxes......................................................... 11.2(x)
</TABLE>

                                      A-7
<PAGE>

<TABLE>

<S>                                                            <C>
Third Party Claim............................................. 11.2(y)
Third Party Products.......................................... 3.15(g)
Total Converted Company Stock................................. 2.1(a)
Trading Day................................................... 2.1(a)
unfunded current liability.................................... 3.20(c)
VSAT Customer Revenue......................................... 2.8(f)
Year 2000 Ready............................................... 3.15(g)
</TABLE>

                                      A-8
<PAGE>


                         AGREEMENT AND PLAN OF MERGER


          THIS AGREEMENT AND PLAN OF MERGER (this "Agreement") is entered into
                                                   ---------
this 15th day of April, 1999, by and among ITC/\DELTACOM INC., a Delaware
corporation ("Acquiror"), INTERSTATE FIBERNET, INC., a Delaware corporation and
              --------
a wholly-owned subsidiary of Acquiror ("Merger Sub") and AVDATA SYSTEMS, INC., a
                                        ----------
Delaware corporation (the "Company").
                           -------

          WHEREAS, the Boards of Directors of each of Acquiror, Merger Sub and
the Company have determined that it is in the best interests of their respective
companies and stockholders that the Company merge with and into Merger Sub,
pursuant to and subject to the terms and conditions of this Agreement and the
General Corporation Law of the State of Delaware (the "DGCL").
                                                       ----

          NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth in this
Agreement, the parties hereto agree as follows:

                                   ARTICLE I


                                   THE MERGER

  SECTION 1.1.  The Merger.

          Upon the terms and subject to the conditions set forth in this
Agreement, and in accordance with the DGCL, at the Effective Time (as defined in
Section 1.2), the Company shall be merged with and into Merger Sub (the
- -----------
"Merger").  As a result of the Merger, the separate corporate existence of the
 ------
Company shall cease and Merger Sub shall continue as the surviving corporation
of the Merger (sometimes referred to herein as the "Surviving Corporation") as a
                                                    ---------------------
wholly-owned subsidiary of Acquiror.  The name of Merger Sub shall continue as
the name of the Surviving Corporation.

  SECTION 1.2.  Effective Time.

          At the Closing (as defined in Section 1.6), the parties hereto shall
                                        -----------
cause the Merger to be consummated by filing a certificate of merger (the
"Certificate of Merger") with the Secretary of State of the State of Delaware in
- ----------------------
such form as required by, and executed in accordance with the relevant
provisions of, the DGCL and in such form as approved by the Company and Acquiror
prior to such filing (the date and time of the filing of the Certificate of
Merger or such subsequent date or time specified therein being the "Effective
                                                                    ---------
Time").
- ----

  SECTION 1.3.  Effect of the Merger.

          At the Effective Time, the effect of the Merger shall be as provided
in this Agreement and the applicable provisions of the DGCL.  Without limiting
the generality of the foregoing, and subject thereto, at the Effective Time,
except as otherwise provided herein, all the property (including, without
limitation, Intellectual Property), rights, privileges, powers and franchises of
Merger Sub and the Company shall vest in the Surviving Corporation, and all
debts, liabilities and duties of Merger Sub and the Company shall become the
debts, liabilities and duties of the Surviving Corporation.

                                      A-9
<PAGE>


  SECTION 1.4.  Certificate of Incorporation; Bylaws.

          At the Effective Time, the certificate of incorporation of Merger Sub,
as in effect immediately prior to the Effective Time and as amended by the
Certificate of Merger, shall be the certificate of incorporation of the
Surviving Corporation, and the bylaws of Merger Sub, as in effect immediately
prior to the Effective Time, shall be the bylaws of the Surviving Corporation.


  SECTION 1.5.  Directors and Officers.

          The directors of Merger Sub (or such other or additional individuals
as Acquiror may designate prior to Closing) shall continue as the directors of
the Surviving Corporation, each to hold office in accordance with the
certificate of incorporation and bylaws of the Surviving Corporation; and the
officers of Merger Sub (or such other or additional individuals as Merger Sub
may designate prior to Closing) shall continue as the officers of the Surviving
Corporation, in each case until their respective successors are duly elected or
appointed and qualified.  Following the Effective Time, Acquiror shall, as soon
as practicable, take all steps necessary to appoint James H. Black, Jr. as a
Senior Vice President and member of the Board of Directors of Acquiror.

  SECTION 1.6.  Closing.

          Subject to the terms and conditions of this Agreement, the closing of
the Merger (the "Closing") will take place as promptly as practicable after
                 -------
satisfaction of the latest to occur or, if permissible, waiver of the conditions
set forth in Article VIII hereof (the "Closing Date"), at the offices of
             ------------              ------------
Sutherland, Asbill & Brennan, LLP, 999 Peachtree Street N.E., Atlanta, GA  30309
unless another date or place is agreed to by the parties hereto.

  SECTION 1.7.  Subsequent Actions.

          If, at any time after the Effective Time, the Surviving Corporation
shall consider or be advised that any deeds, bills of sale, assignments,
assurances or any other actions or things are necessary or desirable to continue
in, vest, perfect or confirm of record or otherwise in the Surviving Corporation
its right, title or interest in, to or under any of the rights, properties,
privileges, franchises or Assets of either of its constituent corporations
acquired or to be acquired by the Surviving Corporation as a result of, or in
connection with, the Merger or otherwise to carry out this Agreement, the
officers and directors of the Surviving Corporation shall be directed and
authorized to execute and deliver, in the name and on behalf of either of such
constituent corporations, all such deeds, bills of sale, assignments and
assurances and to take and do, in the name and on behalf of each of such
corporations or otherwise, all such other actions and things as may be necessary
or desirable to vest, perfect or confirm any and all right, title and interest
in, to and under such rights, properties, privileges, franchises or Assets in
the Surviving Corporation or otherwise to carry out this Agreement.

  SECTION 1.8.  Tax Treatment of the Merger.

          It is intended by the parties hereto that the Merger shall constitute
a reorganization of Merger Sub and the Company within the meaning of Section 368
of the Internal Revenue Code of 1986, as amended (the "Code").  The parties
                                                       ----
hereby adopt this Agreement as a "plan of reorganization" of Merger Sub and the
Company within the meaning of Sections 1.368-2(g) and 1.368-3(a) of the United
States Treasury Regulations.

                                     A-10
<PAGE>


                                  ARTICLE II


               CONVERSION OF SECURITIES; EXCHANGE OF CERTIFICATES

  SECTION 2.1.  Conversion of Securities.

          At the Effective Time, by virtue of the Merger and without any action
on the part of the parties hereto or the holders of the following securities:


          (a) Common Stock.  Each share of common stock, par value $.01 per
              ------------
share, of the Company ("Company Common Stock") (excluding any shares described
                        --------------------
in Section 2.1(c)) issued and outstanding immediately prior to the Effective
   ---------------
Time (other than Dissenting Shares) shall cease to be outstanding and shall be
converted into and exchanged for the right to receive (i) the number of fully
paid and nonassessable shares of common stock, par value $0.01 per share, of
Acquiror ("Acquiror Shares") equal to the Exchange Ratio defined below and (ii)
           ---------------
the right to receive the number of Earnout Shares as identified in Section 2.8,
                                                                   -----------
subject to the terms and conditions of this Agreement.  All such shares of
Company Common Stock shall cease to exist, and each certificate previously
evidencing any such shares shall thereafter represent only the right to receive
the Acquiror Shares and Earnout Shares, as described in this Agreement,
attributable thereto.  The holders of certificates previously evidencing such
shares of Company Common Stock outstanding immediately prior to the Effective
Time shall cease to have any rights with respect to such shares of Company
Common Stock, except as otherwise provided herein or by Law.  Each such
certificate ("Company Common Stock Certificate") previously evidencing such
              --------------------------------
shares of Company Common Stock shall be exchanged for the number of Acquiror
Shares equal to the number of shares of Company Common Stock previously
evidenced by the canceled Company Common Stock Certificate upon the surrender of
such Company Common Stock Certificate in accordance with the provisions of
Section 2.4, multiplied by the Exchange Ratio.  The Acquiror Shares to be issued
- -----------
to the Company Stockholders by Acquiror pursuant to this Section 2.1, including
                                                         -----------
the Earnout Shares, shall be referred herein as the "Merger Stock."  The
                                                     ------------
Exchange Ratio shall be the quotient obtained by dividing  the Per Share Price
by the Determination Price.

          "Determination Price" shall mean the average of the Average Daily
           -------------------
Price of Acquiror Shares on the Nasdaq National Market System (the "Nasdaq")
                                                                    ------
(or, if such security is not listed on the Nasdaq, such other principal exchange
or over-the-counter market on which such security is listed) for the five (5)
consecutive trading days (each a "Trading Day") on which trading of Acquiror
                                  -----------
Shares occurs ending on the Trading Day immediately preceding the Closing Date;
provided, however, that in the event that such Determination Price would exceed
- --------  -------
$31.39 or be less than $25.00, $31.39 or $25.00, as the case may be, shall be
the Determination Price.

          "Average Daily Price" with respect to any Trading Day shall be the
           -------------------
average of the high price and low price reported on Nasdaq for any such Trading
Day.

          "Initial Consideration" shall mean Twenty Eight Million Six Hundred
           ---------------------
Thousand Dollars ($28,600,000).

          "Per Share Price" shall mean the quotient obtained by dividing the
           ---------------
Initial Consideration by the Total Converted Company Stock.

          "Total Converted Company Stock" shall mean the sum of (i) the number
           -----------------------------
of shares of Company Common Stock (other than treasury stock) issued and
outstanding immediately prior to the Effective Time and (ii) the number of
shares of Company

                                     A-11
<PAGE>


Common Stock issuable at any time pursuant to the Company Stock Options
exchanged pursuant to Section 2.7 which are vested immediately prior to the
                      -----------
Effective Time.

          (b) Treasury Stock.  All shares of capital stock of the Company held
              --------------
in the treasury of the Company immediately prior to the Effective Time shall be
canceled and extinguished without any conversion thereof and no Acquiror Shares
or other consideration shall be delivered or deliverable in exchange therefor.


          (c) No Fractional Shares.  No fraction of an Acquiror Share shall be
              --------------------
issued in connection with the Merger.  In lieu of any such fractional share, the
holder of the Company Common Stock that would be entitled to a fractional share
shall have the right to receive an amount in cash, without interest, equal to
the product of such fraction multiplied by the Per Share Price.

  SECTION 2.2.  Conversion of Merger Sub Shares.

          At the Effective Time, each share of outstanding capital stock of
Merger Sub shall remain issued and outstanding after the Effective Time as a
share of capital stock of the Surviving Corporation.

  SECTION 2.3.  Escrow Stock; Stockholders' Representative.

          (a) When making the issuances of Acquiror Shares pursuant to Section
                                                                       -------
2.1(a) above, Acquiror shall withhold and retain in escrow from the Company
- ------
Stockholders (as defined in Section 11.2) an aggregate number of Acquiror Shares
                            ------------
issuable pursuant to Section 2.1(a) equal to (i) the product of the
                     --------------
Stockholders' Percentage and $5,000,000 divided by (ii) the Determination Price
(as adjusted pursuant to Section 2.1(c)) (the "Escrow Stock").  The Escrow Stock
                         --------------        ------------
will be placed in escrow as security for the performance of the indemnity
obligations of the Company Stockholders under Section 10.2 of this Agreement,
                                              ------------
all pursuant to the terms and conditions of an escrow agreement among Acquiror,
the Surviving Corporation, the Stockholders' Representative and First Union
National Bank (the "Escrow Agent"), in form, scope and substance reasonably
                    ------------
acceptable to the parties hereto (the "Escrow Agreement").  The Escrow Stock
                                       ----------------
shall be registered in the name of the Escrow Agent as nominee for the Company
Stockholders.  The Merger Stock otherwise distributable as of the Effective Time
to each Company Stockholder in connection with the Merger as provided in Section
                                                                         -------
2.1(a) shall be proportionally reduced to reflect the amount of Merger Stock
- ------
required to be deposited in escrow pursuant to this Section 2.3(a) and the
                                                    --------------
Escrow Agreement, and such Escrow Stock shall be released to the Company
Stockholders or Acquiror, as the case may be, only in accordance with the terms
of this Agreement and the Escrow Agreement.  The fees of the Escrow Agent shall
be paid by Acquiror.

          (b) Kenneth F. Leddick shall, by virtue of the Merger, be appointed
attorney-in-fact and authorized and empowered to act, for and on behalf of any
or all of the Company Stockholders (with full power of substitution in the
premises), in connection with the indemnity provisions of Section 10.2 and the
                                                          ------------
Escrow Agreement as they relate to the Company and the Company Stockholders
generally, and such other matters as are reasonably necessary for the
consummation of the transactions contemplated hereby including, without
limitation, (i) to review all claims for indemnification asserted by an Acquiror
Indemnified Person, and, to the extent deemed appropriate, dispute, question the
accuracy of, compromise, settle or otherwise resolve any and all such claims,
(ii) to compromise on their behalf with Acquiror any claims asserted thereunder,
(iii) to authorize payments to be made with respect to any such claims for
indemnification, (iv) to execute and deliver on behalf of the Company
Stockholders any document or agreement contemplated by or necessary or desirable
in connection with this Agreement

                                     A-12
<PAGE>


or the Escrow Agreement and (v) to take such further actions including
coordinating and administering post-closing matters related to the rights and
obligations of the Company Stockholders as are authorized in this Agreement and
the Escrow Agreement (the above named representative, as well as any subsequent
representative of the Company Stockholders appointed by the Company Stockholders
being referred to herein as the "Stockholders' Representative"). The
                                 ----------------------------
Stockholders' Representative shall not be liable to any Company Stockholder,
Acquiror, the Surviving Corporation or their respective affiliates or any other
person with respect to any action taken or omitted to be taken by the
Stockholders' Representative in his role as Stockholders' Representative under
or in connection with this Agreement unless such action or omission results from
or arises out of fraud, gross negligence or willful misconduct on the part of
the Stockholders' Representative. Acquiror, Merger Sub and the Surviving
Corporation shall be entitled to rely on such appointment and treat such
Stockholders' Representative as the duly appointed attorney-in-fact of each
Company Stockholder. Each Company Stockholder who votes in favor of the Merger
pursuant to the terms hereof, by such vote, without any further action, and each
Company Stockholder who receives Acquiror Shares in connection with the Merger,
by acceptance thereof and without any further action, confirms such appointment
and authority. Should the named Stockholder Representative fail or cease to
serve hereunder as such, the holders of a majority of the then-previously issued
Company Common Stock shall be entitled to elect a successor Stockholder
Representative.

  SECTION 2.4.  Exchange of Company Common Stock Certificates.

          (a) Exchange Agent.  Prior to the Effective Time, Acquiror shall
              --------------
deposit, or shall cause to be deposited, with a bank or trust company designated
by Acquiror (the "Exchange Agent"), for the benefit of the holders of Company
                  --------------
Common Stock for exchange through the Exchange Agent in accordance with this
Article II as of the Effective Time, (i) certificates representing the whole
- ----------
Acquiror Shares issuable to such holders pursuant to Section 2.1 and (ii) cash
                                                     -----------
in an amount sufficient to permit payment of the cash payable in lieu of
fractional shares pursuant to Section 2.1(c) (such certificates for Acquiror
                              --------------
Shares and cash for fractional shares, together with any dividends or
distributions with respect thereto being hereafter referred to as the "Exchange
                                                                       --------
Fund").  Acquiror shall irrevocably instruct the Exchange Agent, at the
- ----
Effective Time, to deliver the Acquiror Shares to be issued to the holders of
Company Common Stock pursuant to Section 2.1 out of the Exchange Fund pursuant
                                 -----------
to the procedures set forth in Section 2.4(b) beginning immediately after the
                               --------------
Effective Time.

          (b) Exchange Procedures.  At the earliest practicable date prior to
              -------------------
the Effective Time, Acquiror shall mail or shall cause to be delivered to each
holder of record of a Company Common Stock Certificate or Certificates (i) a
letter of transmittal (which shall specify that delivery shall be effected, and
risk of loss and title to the Company Common Stock Certificates shall pass, only
upon proper delivery of the Company Common Stock Certificates to the Exchange
Agent and shall be in customary form) and (ii) instructions for use in effecting
the surrender of the Company Common Stock Certificates in exchange for cash or
certificates representing Acquiror Shares.  Upon surrender of a Company Common
Stock Certificate for cancellation to the Exchange Agent, together with such
letter of transmittal, duly executed, and such other customary documents as may
be required pursuant to such instructions, the holder of such Company Common
Stock Certificate shall be entitled to receive in exchange therefor, and
Acquiror shall thereupon cause the Exchange Agent to deliver to the holder of
such Company Common Stock Certificate, (i) a certificate representing that
number of whole Acquiror Shares which such holder has the right to receive in
accordance with Section 2.1 and (ii) cash in lieu of fractional Acquiror Shares
                -----------
to which such holder is entitled pursuant to

                                     A-13
<PAGE>


Section 2.1(c). The Company Common Stock Certificates so surrendered shall
- --------------
forthwith be canceled. In the event of a transfer of ownership of shares of
Company Common Stock which is not registered in the transfer records of the
Company, the proper number of Acquiror Shares may be issued to a transferee if
the Company Common Stock Certificates representing such shares of Company Common
Stock, properly endorsed or otherwise in proper form for transfer, are presented
to the Exchange Agent, accompanied by all documents required to evidence and
effect such transfer and by evidence that any applicable stock transfer taxes
have been paid. Until surrendered as contemplated by this Section 2.4, each
                                                          -----------
Company Common Stock Certificate shall be deemed at any time after the Effective
Time to represent only the right to receive upon such surrender the Merger Stock
issuable in exchange therefor, together with any dividends or other
distributions to which such holder is entitled pursuant to Section 2.4(c). No
                                                           --------------
interest will be paid or will accrue on any cash payable pursuant to Section
                                                                     -------
2.1(c).
- ------

          (c) Distributions with Respect to Unexchanged Shares of Acquiror
              ------------------------------------------------------------
Shares.  No dividends or other distributions declared or made after the
- ------
Effective Time with respect to Acquiror Shares with a record date after the
Effective Time shall be paid to the holder of any unsurrendered Company Common
Stock Certificate with respect to the whole Acquiror Shares represented thereby
until the holder of such Company Common Stock Certificate shall surrender such
Company Common Stock Certificate.  Subject to the effect of escheat, tax or
other applicable Laws, following surrender of any such Company Common Stock
Certificate, there shall be paid to the record holder of the certificates
representing whole Acquiror Shares issued in exchange therefor, without
interest, (i) promptly, the amount of any cash payable with respect to a
fractional share of Acquiror Shares to which such holder is entitled pursuant to
Section 2.1(c), and the amount of dividends or other distributions with a record
- --------------
date after the Effective Time theretofore paid with respect to such whole
Acquiror Shares, and (ii) at the appropriate payment date, the amount of
dividends or other distributions, with a record date after the Effective Time
but prior to surrender and a payment date occurring after surrender, payable
with respect to such whole Acquiror Shares.

          (d) No Further Rights in Company Common Stock.  All Acquiror Shares
              -----------------------------------------
issued and cash paid pursuant to Section 2.1(c) shall be deemed to have been
                                 --------------
issued and paid in full satisfaction of all rights pertaining to such shares of
Company Common Stock.

          (e) Termination of Exchange Fund.  Any portion of the Exchange Fund
              ----------------------------
which remains undistributed to the holders of Company Common Stock for twelve
(12) months after the Effective Time shall be delivered to Acquiror, upon
demand.  Any holders of Company Common Stock who have not theretofore complied
with this Article II shall thereafter look only to Acquiror for Acquiror Shares
          ----------
to which they are entitled pursuant to Section 2.1, any dividends or other
                                       -----------
distributions with respect to Acquiror Shares to which they are entitled
pursuant to Section 2.4(c) and any cash in lieu of fractional Acquiror Shares to
            --------------
which they are entitled pursuant to Section 2.1(c).
                                    --------------

          (f) No Liability.  None of Acquiror, Merger Sub, the Company, the
              ------------
Surviving Corporation or the Exchange Agent shall be liable to any person for
any Acquiror Shares (or dividends or distributions with respect thereto) or cash
delivered to a public official pursuant to any abandoned property, escheat or
similar Laws.

          (g) Lost, Stolen or Destroyed Company Common Stock Certificates.  In
              -----------------------------------------------------------
the event any Company Common Stock Certificate shall have been lost, stolen or
destroyed, the Exchange Agent shall issue in exchange for such lost, stolen or
destroyed Company Common Stock Certificate, upon the making of an affidavit of
that fact by the holder thereof, such Acquiror Shares as may be required
pursuant to this Article II; provided,
                             --------

                                     A-14
<PAGE>


however, that Acquiror may, in its reasonable discretion if Acquiror determines
- -------       --------
that the owner of such lost, stolen or destroyed Company Common Stock
Certificate is not sufficiently creditworthy and as a condition precedent to the
issuance thereof, require such owner to deliver a bond in such sum as it may
reasonably direct as indemnity against any claim that may be made against
Acquiror, the Surviving Corporation, or the Exchange Agent with respect to the
Company Common Stock Certificate alleged to have been lost, stolen or destroyed.


          (h) Conversion of Options.  Acquiror shall take such actions, as are
              ---------------------
reasonably necessary to revise and adjust each Company Stock Option (as defined
in Section 2.7) as soon as practicable after the Effective Time with an
   -----------
appropriate option agreement or amendment to existing option agreement.
Acquiror shall take all corporate action reasonably necessary subject to Section
                                                                         -------
2.7(d), to reserve, if necessary, for issuance a sufficient number of Acquiror
- ------
Shares for delivery upon the exercise of New Options.

  SECTION 2.5.  Appraisal Rights.

          (a) Notwithstanding any other provisions of this Agreement to the
contrary, shares of Company Common Stock that are issued and outstanding as of
the Effective Time and that are held by Company Stockholders who shall not have
voted in favor of the Merger or consented thereto in writing and who shall have
demanded properly in writing payment for such shares in accordance with Section
262 of the DGCL (collectively, the "Dissenting Shares") shall not be converted
                                    -----------------
into or represent the right to receive Acquiror Shares pursuant to Section
                                                                   -------
2.1(a).  Such Company Stockholders shall be entitled to receive payment of the
- ------
fair value of such shares of Company Common Stock held by them in accordance
with the provisions of such Section 262 of the DGCL, except that all Dissenting
Shares held by Company Stockholders who shall have failed to demand payment or
deposit their Company Common Stock Certificates where required or who
effectively shall have withdrawn or lost their rights to appraisal of such
shares of Company Common Stock under such Section 262 shall thereupon be deemed
to have been converted into and to have become exchangeable, as of the Effective
Time, for the right to receive, without any interest thereon, Acquiror Shares as
contemplated by this Agreement (subject to Section 2.1(c) and Section 2.3), upon
                                           --------------     -----------
surrender of the Company Common Stock Certificate or Company Common Stock
Certificates.

          (b) The Company shall give Acquiror (i) prompt notice of any written
demands for payment of any shares of Company Common Stock, withdrawals of such
demands, and any other instruments served pursuant to the DGCL and received by
the Company and (ii) the opportunity to participate in all negotiations and
proceedings with respect to demands for appraisal under the DGCL.  The Company
shall not, except with the prior written consent of Acquiror, which consent
shall not be unreasonably withheld, voluntarily provide any consideration with
respect to any demands for fair value of Company Common Stock or offer to settle
or settle any such demands.

  SECTION 2.6.  Stock Transfer Books.

          At the Effective Time, the stock transfer books of the Company with
respect to all shares of capital stock of the Company shall be closed and no
further registration of transfers of such shares of capital stock shall
thereafter be made on the records of the Company.

  SECTION 2.7.  Company Stock Options.

          (a) As of the Effective Time, each outstanding unexpired and
unexercised option to purchase shares of Company Common Stock described in
Schedule 3.4 hereto
- ------------
                                     A-15
<PAGE>


held by a person who shall become an employee of Acquiror or
any of its subsidiaries as of the Effective Time (each a "Company Stock
Option"), shall automatically be converted into an option (each a "New Option")
to purchase a number of whole Acquiror Shares equal to the number of shares of
Company Common Stock that could have been purchased (assuming full vesting)
under such Company Stock Option multiplied by the Option Exchange Ratio defined
below.  The exercise price of each New Option shall equal the per-share option
exercise prices specified in such Company Stock Option multiplied by the
Exercise Price Multiple.  Nothing in this Section 2.7 shall affect the vesting
                                          -----------
schedule in effect for each Company Stock Option as of the date hereof, and each
New Option shall have the same vesting schedule as in effect for the
corresponding Company Stock Option as of the date hereof (provided no vesting
that is based on any criteria other than time of employment with the Company and
the successor corporation (except with respect to certain options held by
Richard J. Santillo) shall be used and, provided further, that the Company shall
not have accelerated the vesting of the Company Stock Options prior to the
Effective Time).  As of the Effective Time, the Company shall effect the
termination of each other outstanding unexpired and unexercised option to
purchase shares of Company Common Stock.

          The "Option Exchange Ratio" shall be the quotient obtained by dividing
               ---------------------
the Option Per Share Price by the Determination Price.

          "Initial Option Consideration" shall mean Twenty-Three Million Six
           ----------------------------
Hundred Thousand Dollars ($23,600,000).

          "Option Per Share Price" shall mean the quotient obtained by dividing
           ----------------------
the Initial Option Consideration by the Fully Diluted Company Stock.

          "Exercise Price Multiple" shall equal (a) the Determination Price
           -----------------------
divided by (b) the quotient of (i) Thirty Three Million Six Hundred Thousand
Dollars ($33,600,000) divided by (ii) the Fully Diluted Company Stock.

          "Fully Diluted Company Stock" shall mean the Total Converted Company
           ---------------------------
Stock plus the number of shares of Company Common Stock issuable at any time
pursuant to the Company Stock Options exchanged pursuant to this Section 2.7
                                                                 -----------
which are not immediately vested prior to the Effective Time.

          (b) Upon determination of the Earnout Shares pursuant to Section 2.8
                                                                   -----------
below, the holder of each Company Stock Option immediately prior to the
Effective Time shall be entitled to receive an additional New Option equal to
the number of shares of Company Common Stock that could have been purchased
(assuming full vesting at the Effective Time) by such holder under such Company
Stock Option multiplied by the Option Exchange Ratio; provided however, for
                                                      -------- -------
purposes of calculating the Option Exchange Ratio under this Section 2.7(b)
                                                             --------------
only, the Initial Option Consideration shall equal the Earnout Amount.

          (c) Upon the release of the Escrow Stock to the Company Stockholders,
the holder of each Company Stock Option immediately prior to the Effective Time
shall be entitled to receive an additional New Option equal to the number of
shares of Company Common Stock that could have been purchased (assuming full
vesting at the Effective Time) under such Company Stock Option multiplied by the
Option Exchange Ratio; provided, however, for purposes of calculating the Option
                       --------  --------
Exchange Ratio under this Section 2.7(c) only, the Initial Option Consideration
                          --------------
shall equal the product of (i) the sum of the number of shares of Escrow Stock
so released multiplied by (ii) the Determination Price.

                                      A-16
<PAGE>


          (d) Notwithstanding the foregoing, the granting of any New Options
under this Section 2.7 shall be subject to increasing the employee stock option
           -----------
pool of Acquiror at the next annual meeting of its shareholders.

  SECTION 2.8.  Earnout Shares.

          (a) Subject to the terms of this Section 2.8, the Company Stockholders
                                           -----------
shall have a contingent right to received from Acquiror an aggregate number of
Acquiror Shares (the "Earnout Shares") as determined in accordance with this
                      --------------
Section 2.8.  Each share of Company Common Stock shall be entitled to receive a
- -----------
number of Earnout Shares equal to the quotient obtained by dividing the Earnout
Per Share Price (as defined below) by the Determination Price.  The contingent
right to receive Earnout Shares is personal to each Company Stockholder and
shall not be transferable.

          (b) Subject to the terms of this Section 2.8, delivery of the Earnout
                                           -----------
Shares due pursuant to this Section 2.8 shall be made at a closing (the "Earnout
                            -----------                                  -------
Closing") to be held on a date, agreed in writing between the Stockholder
- -------
Representative and the Acquiror, on or prior to March 15, 2000.  At the Earnout
Closing, Acquiror shall deliver to each Company Stockholder the number of
Earnout Shares to which such Company Stockholder is entitled.

          (c) The Earnout Amount shall be determined by the Acquiror's auditors
promptly following the end of calendar year 1999.  Thirty (30) days prior to the
Earnout Closing, Acquiror shall deliver, or cause to be delivered to the
Stockholder's Representative, the calculation of the Earnout Amount.  The
Stockholder's Representative shall have an opportunity to review such
determination and object to the calculations made.  If an agreement by the
parties is not reached regarding such calculation, the parties shall select a
mutually agreed-upon nationally recognized accounting firm to compute the
Earnout Amount, whose calculation of the Earnout Amount shall be final and
binding on the parties.  In the event that the parties cannot agree upon a
nationally recognized accounting firm within fifteen (15) days prior to the
Earnout Closing, either party may apply to the Atlanta office of the American
Arbitration Association to determine such nationally recognized accounting firm
(which shall be a firm which is not regularly employed by Acquiror and was not
regularly employed by the Company).   The decision of the Atlanta office of the
American Arbitration Association shall be final and binding on the parties.  The
expenses for the independent accounting firm shall be shared equally by the
Company Stockholders, on the one hand, and the Acquiror, on the other hand.

          (d) The "Earnout Amount" shall equal the sum of the Direct Recurring
Revenue Earnout Amount, Non-Recurring Revenue Earnout Amount, and VSAT Customer
Revenue Earnout Amount as follows:

               (i)  Direct Recurring Revenue.
                    ------------------------

          (A)  If the Direct Recurring Revenue equals or exceeds $322,373 but is
less than $347,089, the Direct Recurring Revenue Earnout Amount shall be
an amount equal to the product of (1) $2,850,000 and (2) a fraction, the
numerator of which shall be the result of subtracting $322,373 from the Direct
Recurring Revenue and the denominator of which shall be $24,716. There shall be
no Direct Recurring Revenue Earnout Amount if the Direct Recurring Revenue does
not equal or exceed $322,373.

          (B)  If the Direct Recurring Revenue equals or exceeds $347,089 but is
less than $404,759, the Direct Recurring Revenue Earnout Amount shall be

                                      A-17
<PAGE>


$2,850,000 plus an amount equal to the product of (1) $2,850,000 and (2) a
fraction, the numerator of which shall be the result of subtracting $347,089
from the Direct Recurring Revenue and the denominator of which shall be $57,670.


          (C)  If the Direct Recurring Revenue equals or exceeds $404,759 but is
less than $487,145, the Direct Recurring Revenue Earnout Amount shall be
$5,700,000 plus an amount equal to the product of (1) $3,600,000 and (2) a
fraction, the numerator of which shall be the result of subtracting $404,759
from the Direct Recurring Revenue and the denominator of which shall be $82,386.


          (D)  If the Direct Recurring Revenue equals or exceeds $487,145, the
Direct Recurring Revenue Earnout Amount shall be $9,300,000.

          (ii) Non-Recurring Revenue.  If Non-Recurring Revenue equals or
               ----------------------
exceeds $7,700,000, the Non-Recurring Revenue Earnout Amount shall be  $350,000.
There shall be no Non-Recurring Earnout Amount if the Non-Recurring Revenue is
less than $7,700,000.

          (iii)  VSAT Customer Revenue.  If the VSAT Customer Revenue for the
                 ----------------------
month of December 1999 equals or exceeds $684,705, the VSAT Customer Revenue
Earnout Amount shall be  $350,000.  There shall be no VSAT Customer Revenue
Earnout Amount if the VSAT Customer Revenue for the month of December 1999 is
less than $684,705.

          (f) Definitions.  For purposes of this Article II:
                                                 ----------

          (i) "Direct Recurring Revenue" shall mean the following: for the month
               ------------------------
of December, 1999 revenues derived from (A) the Company's terrestrial recurring
revenue base as of the Effective Time, (B) all new sales made by Company sales
professionals of Acquiror's recurring revenue products, including without
limitation, local, long-distance, frame-relay, point-to-point data circuits,
Internet access and other new recurring revenue products which Acquiror makes
available, if any, prior to the end of 1999 and (C) all new sales made by
Company sales professionals of the Company's recurring revenue products, with
the exception of VSAT products.  In the event that the Direct Recurring Revenue
does not equal or exceed $487,145, there shall be added to the Direct Recurring
Revenue for purposes of calculating the Direct Recurring Revenue Earnout Amount
an amount (not to exceed $32,954) equal to the amount by which the New Recurring
Channel Sales for the month of December 1999 exceed the budgeted New Recurring
Channel Sales of $125,985 for the month of December 1999.  For purposes of
calculating the Direct Recurring Revenue, if a customer using a VSAT product is
converted to a recurring revenue terrestrial product during 1999, and as a
result the total recurring revenue from such customer for December 1999 exceeds
the VSAT product revenue for December 1999 reasonably expected from such
customer, an amount equal to the excess shall be added to the Direct Recurring
Revenue.

          (ii) "Earnout Per Share Price" shall mean the quotient obtained by
                -----------------------
dividing the Earnout Amount by the Total Converted Company Stock.

          (iii)  "New Recurring Channel Sales" shall mean the amount of sales of
                  ---------------------------
new recurring revenue products by third party distribution channels (other than
Acquiror) established from time to time.

                                      A-18
<PAGE>


          (iv) "Non-Recurring Revenue" shall mean the following: for calendar
                ---------------------
year 1999 all revenue derived from non-recurring revenue products sold by
Company sales professionals.

          (v) "VSAT Customer Revenue" shall mean the following: for the month of
               ---------------------
December 1999 revenues derived from (A) the Company's VSAT recurring revenue
base as of the Effective Time, and (B) all new sales made by Company sales
professionals of the Company's VSAT recurring revenue products.  For purposes of
calculating the VSAT Customer Revenue, if a customer using a VSAT product is
converted to a recurring revenue terrestrial product during 1999 and, as a
result, reduces its use of the VSAT product which it previously used, an amount
equal to the revenue shortfall with respect to such VSAT product reasonably
attributable to such customer's conversion to the terrestrial product shall be
added to the VSAT Customer Revenue.

               (vi) "Company" shall mean the Company and any successor
                     -------
corporation.

                                  ARTICLE III


                 REPRESENTATIONS AND WARRANTIES OF the COMPANY

          The Company represents and warrants to Acquiror and Merger Sub as
follows:

  SECTION 3.1.  Organization and Qualification.

          The Company is a corporation duly organized, validly existing and in
good standing under the Laws of the State of Delaware.  The Company has the
requisite power and authority to own, lease and operate its business as it is
now being conducted and to perform the terms of this Agreement and the
transactions contemplated hereby.  Except as set forth on Schedule 3.1, the
                                                          ------------
Company is duly qualified to conduct its business as a foreign corporation, and
is in good standing, in each jurisdiction in which the failure to be so
qualified and in good standing would reasonably be expected to cause a Company
Material Adverse Effect.

  SECTION 3.2.  Subsidiaries.

          Except as set forth on Schedule 3.2, the Company has no Subsidiaries
                                 ------------
(as defined in Section 11.2) and no equity interest or other investment in, nor
               ------------
has the Company made advances or loans to, any person other than (a) travel
advances to employees made in the ordinary course of business, and (b) loans or
advances made to employees which do not exceed $3,000 individually, or together
with all loans and advances made by the Company, exceed $50,000 in the
aggregate.

  SECTION 3.3.  Certificate of Incorporation and Bylaws.

          The Company has heretofore delivered to Acquiror a complete and
correct copy of each of the certificate of incorporation and bylaws of the
Company, each as in effect on the date hereof, certified by the Company's
corporate secretary.  Such certificate of incorporation and bylaws are in full
force and effect.  The Company is not in violation of any of the provisions of
its certificate of incorporation or bylaws.

                                      A-19
<PAGE>


  SECTION 3.4.  Capitalization.

          The authorized capital stock of the Company consists of 45,000,000
shares of Company Common Stock, of which 30,772,170 shares are issued and
outstanding, 10,000,000 shares of Preferred Stock, of which no shares are issued
and outstanding and 30,000,000 shares of Serial Preferred Shares, of which no
shares are issued and outstanding.  All of the outstanding shares of capital
stock of the Company are owned beneficially and of record by the Company
Stockholders as set forth in Schedule 3.4.  The Company has provided to Acquiror
                             ------------
a complete, accurate and correct schedule of all options, warrants or other
rights, agreements (including, without limitation, voting trusts or voting
agreements), arrangements or commitments of any character relating to the issued
or unissued capital stock of the Company or obligating the Company to issue or
sell any shares of capital stock of, or other equity interests in the Company,
including any securities directly or indirectly convertible into or exercisable
or exchangeable for any capital stock or other equity securities of the Company.
Except as set forth on Schedule 3.4, there are no outstanding obligations of the
                       ------------
Company to repurchase, redeem or otherwise acquire any shares of its capital
stock or make any investment (in the form of a loan, capital contribution or
otherwise) in any other person.  All of the issued and outstanding shares of
Company Common Stock have been duly authorized and validly issued in accordance
with applicable Laws and are fully paid and nonassessable and not subject to
preemptive rights.  Except shares reserved for issuance upon the exercise of
options, no shares of capital stock of the Company have been reserved for any
purpose.

  SECTION 3.5.  Authority.

          The Company has the necessary corporate power and authority to enter
into this Agreement and to perform its obligations hereunder and to consummate
the transactions contemplated hereby.  Except as described in Section 8.1(a),
                                                              --------------
the execution and delivery of this Agreement by the Company and the consummation
by the Company of the transactions contemplated hereby have been duly and
validly authorized by all necessary corporate action and no other corporate
proceedings on the part of the Company are necessary to authorize this Agreement
or to consummate the transactions contemplated hereby.  This Agreement has been
duly executed and delivered by the Company and, assuming the due authorization,
execution and delivery by Acquiror and Merger Sub, constitutes a legal, valid
and binding obligation of the Company, enforceable in accordance with its terms,
except as such enforceability may be limited by bankruptcy, insolvency,
reorganization, moratorium and other similar Laws of general applicability
relating to or affecting creditors' rights generally and by the application of
general principles of equity.

  SECTION 3.6.  No Conflict; Required Filings and Consents.

          (a) Except as set for on Schedule 3.6(a), the execution and delivery
                                   ---------------
of this Agreement by the Company do not, and the performance by the Company of
its obligations under this Agreement will not, (i) conflict with or violate the
certificate of incorporation, bylaws or other organizational document of the
Company, (ii) conflict with or violate any Laws applicable to the Company or to
its Assets, or (iii) result in any breach of or constitute a default (or an
event which with notice or lapse of time or both would become a default) under
any note, bond, mortgage, indenture, contract, agreement, lease, license,
permit, franchise or other instrument or obligation to which the Company is a
party or by which the Company is bound or to which any of its Assets is subject.


          (b) Except as set forth on Schedule 3.6(b), the Company's execution
                                     ---------------
and delivery of this Agreement does not, and the Company's performance of this
Agreement will not, (i) require any consent, approval, authorization or permit
of, or filing with or

                                      A-20
<PAGE>


notification to, any third party or any court, arbitral tribunal, administrative
agency or commission, whether national or foreign, or Government Entity, except
for (A) the filing and recordation of appropriate merger documents as required
by the DGCL and (B) pursuant to applicable requirements, if any, of the HSR Act
and the Communications Act; and (ii) result in or give rise to any penalty,
forfeiture, termination of any agreement to which the Company is a party, rights
of termination, amendment or cancellation, or restriction on business operations
of Acquiror, the Company, or the Surviving Corporation that would have a Company
Material Adverse Effect.

          (c) Except as set forth on Schedule 3.6(c), the Company is in
                                     ---------------
possession of all Licenses necessary for the Company to own, lease and operate
its Assets and to carry on its business as it is now being conducted (the

"Company Licenses") other than those which the failure to possess would not
- -----------------
reasonably be expected to have a Company Material Adverse Effect.  All Company
Licenses that are FCC or state utilities Licenses or municipal franchises, and
all other Company Licenses are listed and described in Schedule 3.6(c).  All
                                                       ---------------
Company Licenses are valid and in full force and effect through the respective
dates indicated in such Company Licenses and no suspension, cancellation,
complaint, proceeding, order or investigation of or with respect to any Company
License (or operations thereunder) is pending or, to the Knowledge of the
Company, threatened and, to the Company's Knowledge, no state of facts exists
which would reasonably be expected to lead to any of the same.  The Company has
indicated on Schedule 3.6(c) those Company Licenses which expire within 12
             ---------------
months from the date of this Agreement.  The Company is not in violation of or
default under any Company License.  Except as set forth on Schedule 3.6(c),
                                                           ---------------
since December 31, 1998, the Company has not received written or, to the
Knowledge of the Company, oral notice from any Government Entity or any other
person of any allegation of any such violation or default under a Company
License.

          (d) Except as described in Schedule 3.6, all material returns,
                                     ------------
reports, statements and other documents required to be filed by the Company with
any Government Entity (excluding, for purposes of this Section 3.6(d), all Tax
                                                       --------------
returns) have been filed in a timely manner and complied with and are true,
correct and complete in all material respects (and the related fees identified
in such returns, reports, statements or other documents required to be paid have
been paid in full).  All material records of every type and nature relating to
the Company Licenses or the business, operations or Assets of the Company have
been maintained in all material respects in accordance with good business
practices and the rules of any Government Entity by which the Company is
governed and are maintained at the Company.

          (e) The Company has no interest in any License (including both any
Company License and any License held by third parties in which the Company has
an interest) the loss of which would have a Company Material Adverse Effect and
that is subject to restrictions on assignment or transfer based on the
circumstances under which the License was granted (such as eligibility or
auction rules), the status of construction and operation (such as rules
restricting  resale for a certain period after construction), or any other
restrictions other than an ordinary course requirement for prior approval of
transactions such as the Merger contemplated herein.

          (f) The Company is not aware of any fact or circumstance related to it
that would reasonably be expected to cause the filing of any objection to any
application for any Government Entity consent required hereunder, lead to any
delay in processing such application, or require any waiver of any Government
Entity rule, policy or other applicable Law.

                                      A-21
<PAGE>


  SECTION 3.7.  The Company Financial Statements; No Liabilities.

          (a) The Company has prepared and furnished to Acquiror (i) the audited
balance sheet of Company for its fiscal year ended December 31, 1998, and the
audited statements of income, stockholders' equity and changes in financial
position for the fiscal year then ended, each accompanied by the related report
of Arthur Andersen LLP, independent certified public accountants, and (ii) the
unaudited balance sheet of Company as of February 28, 1999, and the unaudited
statements of income, stockholders' equity and changes in financial position for
the two (2) month period then ended (collectively, the "Financial Statements").
All of the financial statements, including, without limitation, the notes
thereto, referred to in this Section or furnished to Buyer after the date hereof
pursuant to this Agreement:  (A) are in accordance with the books and records of
the Company, (B) present fairly in all material respects the financial position
of the Company as of the respective dates and the results of operations and
changes in financial position for the respective periods indicated, and (C) have
been prepared in accordance with generally accepted accounting principles
applied on a consistent basis (except as otherwise noted in the notes thereto),
subject, in the case of unaudited statements, to normal year-end adjustments.
Schedule 3.7(a) sets forth all changes in accounting methods (for financial
- ---------------
accounting purposes) made, agreed to, requested or required with respect to
Company during the past seven years.

          (b) Except as reflected in the balance sheet of the Company (the

"Company Balance Sheet") as at December 31, 1998 (the "Balance Sheet Date") and
- ----------------------                                 ------------------
as disclosed on Schedule 3.7(b), the Company has no liabilities, contingent or
                ---------------
absolute, matured or unmatured, except for liabilities (i) incurred in the
ordinary course of business since the Balance Sheet Date, and (ii) which would
not have a Company Material Adverse Effect.

  SECTION 3.8.  Accounts Receivable.

          The accounts receivable of the Company shown on the Company Balance
Sheet, or acquired by the Company after the Balance Sheet Date, have been
collected or are collectible in amounts not less than the amounts thereof
carried on the books of the Company, except to the extent of the allowance for
doubtful accounts shown on the Company Balance Sheet and with respect to those
accounts accruing after the Balance Sheet Date, in amounts not greater than 7.6%
of the total accounts receivable accruing during the period following the
Balance Sheet Date through the Effective Date.

  SECTION 3.9.  Absence of Certain Changes or Events.

          Since the Balance Sheet Date, to the Company's Knowledge, there has
been no event or occurrence which has had or would have a Company Material
Adverse Effect.  Except as set forth on Schedule 3.9, since the Balance Sheet
                                        ------------
Date, the Company has conducted its business in the ordinary course, and the
Company has not (a) paid any dividend or distribution in respect of, or redeemed
or repurchased any of, its capital stock; (b) issued any capital stock, bonds or
other corporate securities or debt instruments, granted any options, warrants or
other rights calling for the issuance thereof, or borrowed any funds; (c)
incurred loss of, or significant injury to, any of its Assets as the result of
any fire, explosion, flood, windstorm, earthquake, labor trouble, riot,
accident, act of God or public enemy or armed forces, or other casualty; (d)
incurred, or become subject to, any obligation or liability (absolute or
contingent, matured or unmatured, known or unknown), except current liabilities
incurred in the ordinary course of business; (e) mortgaged, pledged or subjected
to any Encumbrance any of its Assets; (f) sold, exchanged, transferred or
otherwise disposed of any of its Assets or canceled any debts or claims except
dispositions or transfers in the ordinary course of business; (g) written down
the value of any of its Assets or written off as uncollectible any

                                      A-22
<PAGE>


accounts receivable, except write downs and write-offs in the ordinary course of
business, none of which, individually or in the aggregate, are material; (h)
entered into any transactions other than in the ordinary course of business and
consistent with past practices; (i) made any change in any method of accounting
or accounting practice; or (j) made any agreement, or otherwise becomes legally
obligated, to do any of the foregoing.

  SECTION 3.10.  Assets.

          The Company is the sole and exclusive legal and equitable owner of,
and has good and marketable title to, its Assets free and clear of all
Encumbrances, except as set forth in Schedule 3.10.  No person or Government
                                     -------------
Entity has an option to purchase, a right of first refusal or other similar
right with respect to all or any part of the Company's Assets.  All of the
personal property of the Company is in good working order and repair, ordinary
wear and tear excepted, and is suitable and adequate for the uses for which it
is intended or is being used.

  SECTION 3.11.  Leases.

          Schedule 3.11 lists and describes all material leases and other
          -------------
agreements under which the Company is lessee or lessor of any Asset, or holds,
manages or operates any Asset owned by any third party, or under which any Asset
owned by the Company is held, operated or managed by a third party.  Each such
lease and other agreement is in full force and effect and constitutes a legal,
valid and binding obligation of, and is legally enforceable against, the Company
and, to the Knowledge of the Company, the other party or respective parties
thereto and grants the leasehold estate it purports to grant free and clear of
all Encumbrances.  With respect to each such lease and other agreement, (a) all
necessary governmental approvals with respect thereto required to be obtained by
the Company have been obtained, (b) all necessary filings or registrations
therefor required to be made by the Company have been made, unless the failure
to make such filing or registration would not be reasonably expected to have a
Company Material Adverse Effect and (c) there have been no threatened
cancellations thereof and no outstanding disputes thereunder.  The Company has
performed in all material respects all obligations thereunder required to be
performed by the Company to date.  To the Knowledge of the Company, (i) no other
party is in default under any of the foregoing, and (ii) there has not occurred
any event which (whether with or without notice, lapse of time or the happening
or occurrence of any other event) would constitute such a default.

  SECTION 3.12.  Contracts.

          (a) Schedule 3.12 sets forth a complete and correct list of all
              -------------
material agreements, contracts and commitments (whether written or oral) to
which the Company is a party or by which the Company or any of its Assets are
bound (collectively, the "Contracts"), including, without limitation, the
                          ---------
following types of contracts and agreements:  (i) employment, severance,
termination, consulting and retirement agreements; (ii) license agreements or
distributor, dealer, manufacturer's representative, sales agency and advertising
agreements; (iii) agreements with any labor organization or other collective
bargaining unit; (iv) agreements for the future purchase of materials, supplies,
services, merchandise or equipment involving payments of more than One Thousand
Dollars ($1,000) individually (or Five Thousand Dollars ($5,000) in the
aggregate for all such agreements) over its remaining term (including, without
limitation, periods covered by any option to renew by either party); (v)
agreements for the purchase, sale or lease of any real estate or other Assets;
(vi) agreements for the sale of Assets other than in the ordinary course of
business or the grant of any preferential rights to purchase Assets; (vii)
agreements which contain provisions requiring the Company to indemnify

                                      A-23
<PAGE>

any person; (viii) joint venture agreements or other agreements involving the
sharing of profits; (ix) outstanding loans to any persons or entities or
receivables due from any stockholders or any affiliates of the Company; (x)
agreements (including, without limitation, agreements not to compete and
exclusivity agreements) that reasonably could be interpreted to impose any
restriction on any business operations of the Company; (xi) customer and client
contracts; and (xii) any other agreement which by its terms does not terminate
or is not terminable by the Company within thirty (30) days or upon thirty (30)
days' (or less) notice. Schedule 3.12 includes a brief description of all oral
                        -------------
Contracts of the types described in clauses (i) through (xii) above.

          (b) Except as set forth on Schedule 3.12(b), all the Contracts are
                                     ----------------
valid and in full force and effect and constitute legal, valid and binding
obligations of, and are legally enforceable against, the Company and, to the
Knowledge of the Company, the other party or respective parties thereto. With
respect to each such Contract, (i) all necessary governmental approvals with
respect thereto required to be obtained by the Company have been obtained, (ii)
all necessary filings or registrations therefor required to be made by the
Company have been made, and (iii) there have been no cancellations thereof
threatened in writing and, to the Knowledge of Company, no outstanding disputes
thereunder.  The Company has performed in all material respects the obligations
thereunder required to be performed by the Company to date.  The Company is not
and, to the Knowledge of the Company, no other party is, in default under any of
the Contracts, and there has not occurred any event which (whether with or
without notice, lapse of time or the happening or occurrence of any other event)
would constitute such a default.  True and complete copies of all Contracts have
been made available to Acquiror. The consummation of the transactions
contemplated herein will not constitute a breach or default under, or give rise
to the ability of any party to terminate any Contract.

  SECTION 3.13.  Debt Instruments.

          Schedule 3.13 lists all mortgages, indentures, notes, guarantees and
          -------------
other agreements for or relating to borrowed money (including, without
limitation, conditional sales agreements and capital leases) to which the
Company is a party or which have been assumed by the Company or to which any
Assets of the Company are subject  that evidences an indebtedness in excess of
$25,000.  The Company is not in default under any of such mortgages, indentures,
notes, guarantees and other agreements, and there has not occurred any event
which (whether with or without notice, lapse of time or the happening or
occurrence of any other event) would constitute such a default.

  SECTION 3.14.  Real Property.

          Schedule 3.14 contains a list and brief description of all leasehold
          -------------
interests in real estate, easements, rights to access, rights-of-way and other
real property interests which are owned, leased, used or held for use by the
Company (collectively, the "Real Property").  The Company does not hold any fee
                            -------------
simple interest in any real estate.  The Real Property described in Schedule
                                                                    --------
3.14 constitutes all real property interests necessary to conduct the business
- ----
and operations of the Company as now conducted and is suitable and adequate for
the uses for which it is currently devoted.

  SECTION 3.15  Intellectual Property.

          (a) Schedule 3.15 sets forth: (i) all registered and unregistered
              -------------
trademarks, service marks, trade names, maskworks, registered and, to the
Company's Knowledge, all unregistered copyrights, including the jurisdictions in
which each such Intellectual Property right has been registered or in which any
application for such registration has been filed, and (ii) all current written,
and to the best of the Company's

                                      A-24
<PAGE>


Knowledge, oral licenses, sublicenses, franchises and other agreements under
which the Company licenses the Company's Intellectual Property to third parties
or pursuant to which the Company is authorized to use a third party's
Intellectual Property. Schedule 3.15 sets forth whether the Company is the sole
                       -------------
owner or joint owner or licensee of each item of Intellectual Property
identified therein, and any license fees, royalties or similar compensation
which, are payable to or are due in the future from the Company.

          (b) The Company either owns or has adequate rights to use all of the
Intellectual Property that is necessary for, and currently used for, its
business as now conducted, and the Company's Intellectual Property is free and
clear of Encumbrances.  The Company has previously furnished to Acquiror
evidence of either ownership by the Company of or license rights to use its
Intellectual Property.

          (c) There are no pending or, to the Company's Knowledge, threatened
claims against the Company alleging that the conduct of its business infringes
any Intellectual Property rights of others.  The Intellectual Property of the
Company is not subject to any outstanding injunction, judgment, order, decree,
ruling or charge in any such case binding upon the Company.  To the Company's
Knowledge, the Company has not engaged in unfair competition against any third
party and the business of the Company as now conducted does not infringe any
third party Intellectual Property rights.

          (d) To the Company's Knowledge, no third party is infringing upon any
of the Company's Intellectual Property, and the Company has not notified any
third party that it believes such third party is interfering with, infringing,
or misappropriating any of the Company's Intellectual Property or engaging in
any act of unfair competition.  To the Company's Knowledge, the Company has the
right to bring an action for the infringement of all of its Intellectual
Property.

          (e)  [OMITTED]

          (f)  [OMITTED]

          (g) Except as set forth on Schedule 3.15, to the Company's Knowledge,
any hardware, software or firmware licensed or purchased by the Company from
third parties, and all Company Software, accurately processes date/time data, to
the extent such date/time data processes contained in the hardware, software,
firmware or Company software (x) are used by the Company and (y) the failure of
which would reasonably be expected to cause a Company Material Adverse Effect on
the services provided to the Company's customers (including but not limited to,
calculating, comparing, and sequencing) from, into, and between the twentieth
and twenty-first centuries, and the years 1999 and 2000 and leap year
calculations when either (i) used as a standalone application, or (ii)
integrated into or otherwise used in conjunction with third party hardware,
software, firmware and data ("Third Party Products") with which such Company
                              --------------------
Software was designed or intended to operate at the time such Company Software
was (A) developed for internal use or (B) provided to the Company's customers or
tested by the Company for such customers, whichever is later ("Year 2000
                                                               ---------
Ready").

          (h) (i)  The Company has a compliance program in place to evaluate and
address issues regarding whether its computer systems and software, including
without limitation Third Party Products and the Company Software (collectively,
the "Software") are Year 2000 Ready; (ii) the Company has taken, is taking, and
     --------
will take all measures it reasonably believes are necessary to make the
Software, particularly the operating systems and software upon which the Company
will rely to provide services to its customers, Year 2000 Ready, including
remediation and the use of contingency plans, if

                                      A-25
<PAGE>


necessary, should a year 2000 problem arise from any cause within the Company's
control which may affect those services; and (iii) the Company has requested or
is in the process of requesting from those third-party vendors and suppliers of
the Company that directly support the services that the Company provides to
customers reasonable assurances that their computer systems and related software
are Year 2000 Ready, and that they are taking or have taken adequate measures to
prevent problems caused by the year 2000 that may impact the services and
products they provide to the Company. The Company has previously furnished
Acquiror with copies of all year 2000 warranties that the Company has provided,
and currently provides, to its customers.

     SECTION 3.16.  Environmental Matters.

          (a) The Company is in material compliance with all Environmental Laws
(as defined below).  The Company does not have any material liability under any
Environmental Law, nor is the Company responsible for any liability of any other
person under any Environmental Law.  There are no pending or, to the Knowledge
of the Company, threatened actions, suits, claims, legal proceedings or other
proceedings based on, and the Company has not directly or indirectly received
any notice of any complaint, order, directive, citation, notice of
responsibility, notice of potential responsibility, or information request from
any Government Entity or any other person arising out of or attributable to:
(i) the current or past presence at any part of the Real Property of Hazardous
Materials (as defined below) or any substances that pose a hazard to human
health or an impediment to working conditions; (ii) the current or past release
or threatened release into the environment from the Real Property (including,
without limitation, into any storm drain, sewer, septic system or publicly owned
treatment works) of any Hazardous Materials or any substances that pose a hazard
to human health or an impediment to working conditions; (iii) the off-site
disposal of Hazardous Materials originating on or from the Real Property; or
(iv) any violation of Environmental Laws at any part of the Real Property or
otherwise arising from the Company's activities involving Hazardous Materials.


          (b) As used herein, these terms shall have the following meanings:


          (i) "Environmental Laws" means all applicable federal, state and local
               ------------------
Laws (including the common law), rules, requirements and regulations relating to
pollution, the environment (including, without limitation, ambient air, surface
water, groundwater, land surface or subsurface strata) or protection of human
health as it relates to the environment including, without limitation, Laws and
regulations relating to releases of Hazardous Materials, or otherwise relating
to the manufacture, processing, distribution, use, treatment, storage, disposal,
transport or handling of Hazardous Materials or relating to management of
asbestos in buildings.

          (ii) "Hazardous Materials" means wastes, substances, or materials
                -------------------
(whether solids, liquids or gases) that are deemed hazardous, toxic, pollutants,
or contaminants, including without limitation, substances defined as "hazardous
substances", "toxic substances", "radioactive materials", or other similar
designations in, or otherwise subject to regulation under, any Environmental
Laws.

  SECTION 3.17  Absence of Litigation.

          Except as set forth on Schedule 3.17, there are (i) no claims,
                                 -------------
actions, suits, investigations, or proceedings pending or, to the Company's
Knowledge, threatened against the Company or any of its properties or Assets
before any court, administrative, governmental, arbitral, mediation or
regulatory authority or body, domestic or foreign which, if determined adversely
to the Company, would have a Company Material Adverse

                                      A-26
<PAGE>


Effect, and (ii) no judgments, decrees, injunctions or orders of any Government
Entity or arbitrator outstanding against the Company or any of its properties or
Assets.

  SECTION 3.18.  Books and Records.

          The books of account, stock records, minute books and other records of
the Company are true and complete in all material respects, and the matters
contained therein are appropriately and accurately reflected in the financial
statements to the extent required to be reflected therein.

  SECTION 3.19.  Taxes and Assessments.

          (a) Except as set forth on Schedule 3.19(a), the Company has (or, in
                                     ----------------
the case of returns becoming due after the date hereof and on or before the
Effective Time, will have prior to the Effective Time) duly filed all Tax
returns required to be filed by Company on or before the Effective Time with
respect to all applicable Taxes (as defined below).  Except as set forth on

Schedule 3.19(a), no penalties or other charges are or will become due with
- ----------------
respect to any of the Company's  Tax returns as the result of the late filing
thereof.  All of the Company Tax returns are (or, in the case of returns
becoming due after the date hereof and on or before the Effective Time, will be)
true and complete in all respects.  The Company:  (i) has paid all Taxes due or
claimed to be due by any taxing authority in connection with any of the Company
Tax returns (without regard to whether or not such Taxes are shown as due on
such Company Tax returns); or (ii) has established (or, in the case of amounts
becoming due after the date hereof, prior to the Effective Time will have paid
or established) in its financial statements provided to Acquiror adequate
reserves (in conformity with generally accepted accounting principles
consistently applied) for the payment of such Taxes.  The amounts set up as
reserves for Taxes on the financial statements of the Company furnished to
Acquiror are sufficient for the payment of all unpaid Taxes, whether or not such
Taxes are disputed or are yet due and payable, for or with respect to the
period, and for which the Company may be liable or as a transferee of the assets
of, or successor to, any corporation, person, association, partnership, joint
venture or other entity.

          (b) Except as set forth on Schedule 3.19(b), the Company, either in
                                     ----------------
its own right or as a transferee, has no, and on the Effective Time will not
have, any material liability for Taxes payable for or with respect to any
periods prior to and including the Effective Time in excess of the amounts
actually paid prior to the Effective Time or reserved for in financial
statements furnished to Acquiror.

          (c) There is no action, suit, proceeding, audit, investigation or
claim pending or, to the Knowledge of the Company, threatened in respect of any
Taxes for which the Company is or may become liable, nor has any deficiency or
claim for any such Taxes been proposed, asserted or, to the Knowledge of the
Company, threatened.  The Company has not consented to any waivers or extensions
of any statute of limitations with respect to any taxable year of the Company.
Except as set forth on Schedule 3.19(c), there is no agreement, waiver or
                       ----------------
consent providing for an extension of time with respect to the assessment or
collection of any Taxes against the Company, and no power of attorney granted by
the Company with respect to any tax matters is currently in force.

          (d) The Company has furnished or will, within three days, hereafter
furnish to Acquiror true and complete copies of all Company Tax returns for the
period beginning January 1, 1993 through December 31, 1998 and, to the Knowledge
of the Company, all written communications contained in the files of the
Company, by or to the Company relating to any such Company Tax returns or to any
deficiency or claim proposed and/or asserted, irrespective of the outcome of
such matter, but only to the

                                      A-27
<PAGE>


extent such items relate to tax years (i) which are subject to an audit,
investigation, examination or other proceeding, or (ii) with respect to which
the statute of limitations has not expired.

          (e) Schedule 3.19(e) sets forth (i) all federal tax elections that
              ----------------
currently are in effect with respect to Company, and (ii) all elections for
purposes of foreign, state or local Taxes and all consents or agreements for
purposes of federal, foreign, state or local Taxes in each case that reasonably
could be expected to affect or be binding upon Company or its assets or
operations after the Effective Time.  Schedule 3.19(e) sets forth all changes in
                                      ----------------
accounting methods for Tax purposes at any time made, agreed to, requested or
required with respect to the Company.

          (f) Except as set forth in Schedule 3.19(f), the Company (i) is not
                                     ----------------
and never has been a partner in a partnership or an owner of an interest in an
entity treated as a partnership for federal income tax purposes; (ii) has not
executed or filed with the Internal Revenue Service any consent to have the
provisions of Section 341(f) of the Code apply to it; (iii) is not subject to
Section 999 of the Code; (iv) is not a passive foreign investment company as
defined in Section 1296(a) of the Code; and (v) except as set forth on Schedule
                                                                       --------
3.19(f), is not a party to an agreement relating to the sharing, allocation or
- -------
payment of, or indemnity for, Taxes.

  SECTION 3.20.  Customers.

          To the Knowledge of the Company, the relationships of the Company with
its customers are generally good commercial working relationships.  Except as
set forth on Schedule 3.20, during the twelve (12) months prior to the date of
             -------------
this Agreement, no customer of the Company which accounted for in excess of
$120,000 of the revenues of the Company during such twelve (12) months has
canceled or otherwise terminated its relationship with the Company.

  SECTION 3.21.  Certain Business Practices.

          Neither the Company nor, to the Knowledge of the Company, any of its
officers, directors, employees or agents (or stockholders, distributors,
representatives or other persons acting on the express, implied or apparent
authority of the Company) have paid, given or received or have offered or
promised to pay, give or receive, any bribe or other unlawful payment of money
or other thing of value, any unlawful discount, or any other unlawful
inducement, to or from any person or Government Entity in the United States or
elsewhere in connection with or in furtherance of the business of the Company
(including, without limitation, any offer, payment or promise to pay money or
other thing of value (a) to any foreign official or political party (or official
thereof) for the purposes of influencing any act, decision or omission in order
to assist the Company in obtaining business for or with, or directing business
to, any person, or (b) to any person, while knowing that all or a portion of
such money or other thing of value will be offered, given or promised to any
such official or party for such purposes).  The business of the Company is not
in any manner dependent upon the making or receipt of such payments, discounts
or other inducements.

  SECTION 3.22.  Employment Matters.

          (a) The Company has provided to Acquiror a true and complete list of
names, positions and annual rates of compensation (including bonuses and other
special compensation arrangements) of all current directors, officers and
employees of the Company.  Schedule 3.22 identifies the Company's key employees
                           -------------
(i) whose skills are important to the operation of the Company's business in the
ordinary course and (ii) are

                                      A-28
<PAGE>


not readily replaceable within a reasonable time and without an unreasonable
amount of cost to the Company (together the "Key Employees").  With respect to
                                             -------------
any persons employed by the Company, the Company is in compliance in all
material respects with all Laws respecting employment conditions and practices
and has withheld all amounts required by any applicable Laws to be withheld from
wages and has no liability, except as accrued for on the Company Balance Sheet,
for any Taxes or penalties for failure to comply with any of the foregoing.

          (b) There are no collective bargaining agreements applicable to any
Company employees and the Company does not have a duty to bargain with any labor
organization with respect to any such persons.  There is not pending any demand
for recognition or any other request or demand from a labor organization for
representative status with respect to any persons employed by the Company.

          (c) With respect to any persons employed by the Company, (i) the
Company has not engaged in any unfair labor practice within the meaning of the
National Labor Relations Act and has not violated any legal requirement
prohibiting discrimination on the basis of race, color, national origin, sex,
religion, age, marital status, or disability in its employment conditions or
practices; and (ii) there are no pending or, to the Knowledge of the Company,
threatened unfair labor practice charges or discrimination complaints relating
to race, color, national origin, sex, religion, age, marital status, or
disability against the Company before any Government Entity nor, to the
Knowledge of the Company, does any basis therefor exist.

  SECTION 3.23.  Employee Benefit Plans.

          (a) Schedule 3.23 sets forth a list of all of the pension, retirement,
              -------------
profit-sharing, deferred compensation, stock option, employee stock ownership,
severance pay, sabbatical, vacation, bonus, loans, medical, dental, vision care,
disability, life insurance or other employee programs, arrangements or
agreements and all other material employee benefit plans or fringe benefit
plans, including, without limitation, all "employee benefit plans" as that term
is defined in Section 3(3) of the Employee Retirement Income Security Act of
1974, as amended ("ERISA"), currently adopted, maintained by, sponsored in whole
                   -----
or in part by, or contributed to by the Company or for which the Company could
incur a liability for any entity required to be aggregated with the Company
(each, a "Commonly Controlled Entity") pursuant to Section 414 of the Code for
          --------------------------
the benefit of present and former employees or directors of the Company or their
beneficiaries, or providing benefits to such persons in respect of services
provided to any such entity (collectively, the "Benefit Plans").  Any of the
                                                -------------
Benefit Plans which is an "employee pension benefit plan", as that term is
defined in Section 3(2) of ERISA, is referred to herein as an "ERISA Plan".
                                                               ----------

          (b) Each of the Benefit Plans intended to be "qualified" within the
meaning of Section 401(a) or 501 of the Code has been issued an opinion letter
by the Internal Revenue Service as to the acceptability of the Plan under the
Internal Revenue Code and to the Company's Knowledge, no circumstances exist
that could reasonably be expected by the Company to result in the revocation of
such determination.  Except as set forth on Schedule 3.23(b), each of the
                                            ----------------
Benefit Plans is in compliance with their terms and the applicable terms of
ERISA and the Code and any other applicable Laws, rules and regulations the
breach or violation of which could result in a material liability to the Company
or any Commonly Controlled Entity.

          (c) The Company has not, at any time, maintained or contributed to any
ERISA Plan which is a defined benefit pension plan.  All contributions, premiums
and

                                      A-29
<PAGE>


other payments with respect to each ERISA Plan which have become due and
payable have been paid or accrued.

          (d) No Benefit Plan is or has been a multiemployer plan within the
meaning of Section 3(37) of ERISA (a "Multiemployer Plan").  Neither the Company
                                      ------------------
nor any Commonly Controlled Entity has completely or partially withdrawn from
any Multiemployer Plan.  No termination liability to the Pension Benefit
Guaranty Corporation or withdrawal liability to any Multiemployer Plan that is
material in the aggregate has been or is reasonably expected to be incurred with
respect to any Multiemployer Plan by the Company or any Commonly Controlled
Entity.

          (e) The Company has made available to Acquiror complete copies, as of
the date hereof, of all of the Benefit Plans that have been reduced to writing,
together with all documents establishing or constituting any related trust,
annuity contract, insurance contract or other funding instrument.  The Company
has made available to Acquiror complete copies of current plan summaries,
employee booklets, personnel manuals and other material documents or written
materials concerning the Benefit Plans that are in the possession of the Company
as of the date hereof.

          (f) No claim, lawsuit, arbitration or other action has been instituted
or, to the Knowledge of the Company, threatened against any Benefit Plan.

          (g) Except as contemplated by the terms of this Agreement and as set
forth on Schedule 3.23(g), the consummation of the transactions contemplated by
         ----------------
this Agreement will not give rise to any liability, including, without
limitation, liability for severance pay or termination pay, or accelerate the
time of payment or vesting or increase the amount of compensation or benefits
due to any employee, director or stockholder of the Company (whether current,
former, or retired) or their beneficiaries solely by reason of such
transactions.  No amounts payable under any Benefit Plan will fail to be
deductible for federal income tax purposes by virtue of Section 280G or 162(m)
of the Code.

          (h) The Company does not maintain, contribute to, or in any way
provide for any benefits of any kind (other than under Section 4980B of the
Code, the Federal Social Security Act, or a plan qualified under Section 401(a)
of the Code) to any current or future retiree or terminee.

          (i) Neither the Company nor any Commonly Controlled Entity has (or
could incur) any liability under Title IV of ERISA.

  SECTION 3.24.  Transactions with Related Parties.

          Except as set forth on Schedule 3.24, no present or former officer,
                                 -------------
director, stockholder or person known by the Company to be an affiliate of the
Company, nor any person known by the Company to be an affiliate of any such
person, is currently a party to any transaction or agreement with the Company,
including any agreement providing for any loans, advances, the employment of,
furnishing of services by, rental of its Assets from or to, or otherwise
requiring payments to, any such officer, director, stockholder or affiliate.


  SECTION 3.25.  Insurance.

          Schedule 3.25 contains a list of all insurance policies of title,
          -------------
property, fire, casualty, liability, life, worker's compensation, libel and
slander, and other forms of insurance of any kind relating to the Assets or the
business and operations of the

                                      A-30
<PAGE>


Company, true and correct copies of which have been made available to Acquiror.
All premiums due with respect to such policies covering all periods up to and
including the date hereof have been paid, and no notice of cancellation or
termination has been received with respect to any such policy. To the Company's
Knowledge, all such policies are (a) in full force and effect; (b) are
sufficient for compliance by the Company with all requirements of applicable Law
and of all licenses, franchises and other agreements to which the Company is a
party; (c) are valid, outstanding and enforceable policies; and (d) insure
against risks of the kind customarily insured against and in amounts customarily
carried by corporations similarly situated and provide adequate insurance
coverage for the respective Assets and the business and operations of the
Company. There are no pending claims under any insurance policies and the
Company is not aware of any facts which would lead the Company to believe that
the Company will likely receive a claim under any insurance policies.

  SECTION 3.26.  Brokers.

          Except as set forth on Schedule 3.26, no broker, finder or investment
                                 -------------
banker is entitled to any brokerage, finder's or other fee or commission in
connection with the transactions contemplated by this Agreement based upon
arrangements made by or on behalf of the Company or any stockholder of the
Company.

  SECTION 3.27.  Minute Books.

          The minute books of the Company made available to Acquiror contain a
complete and accurate summary of all meetings of directors, committees and
shareholders or actions by written consent since the time of incorporation of
the Company through December 31, 1998, and reflect all transactions referred to
in such minutes accurately in all material respects, except to the extent that
the failure of the record of the committee meetings to be complete and accurate
would not reasonably be expected to cause a Company Material Adverse Effect.
Nothing which has taken place in any such meeting held since December 31, 1998
which would reasonably be expected to have a Company Material Adverse Effect.


  SECTION 3.28.  Reorganization Treatment.

          The Company has not taken, has not agreed to take, is not obligated to
take, and does not intend to take any action that would cause the Merger to fail
to qualify as a reorganization within the meaning of Section 368 of the Code.


  SECTION 3.29.  Board Recommendation.

          The Board of Directors of the Company has adopted, in compliance with
Delaware Law, a resolution approving and adopting this Agreement and the
transactions contemplated hereby and recommending approval and adoption of this
Agreement and the transactions contemplated hereby by the Company Stockholders.


  SECTION 3.30.  Vote Required.

          The affirmative vote of the holders of a majority of the voting power
attributable to the outstanding shares of Company Common Stock is the only vote
of the holders of any class or series of capital stock of the Company necessary
to approve the transactions contemplated by this Agreement.

  SECTION 3.31.  State Takeover Statutes; Certain Charter Provisions.

          The Board of Directors of the Company has, to the extent such statutes
are applicable, taken all action (including appropriate approvals of the Board
of Directors of

                                     A-31
<PAGE>


the Company) necessary to exempt the Company, the Merger, this Agreement and the
transactions contemplated hereby and thereby from Section 203 of DGCL. To the
Knowledge of the Company, no other state takeover statutes or charter or bylaw
provisions are applicable to the Merger or this Agreement and the transactions
contemplated hereby or thereby.

  SECTION 3.32. Disclosure.

          No representations or warranties by the Company in this Agreement and
no statement or information contained in the Schedules hereto prepared by or on
behalf of Acquiror or any certificate furnished or to be furnished by the
Company to Acquiror pursuant to the provisions of this Agreement, contains or
will contain any untrue statement of a material fact or omits or will omit to
state any fact necessary, in light of the circumstances under which it was made,
in order to make the statements herein or therein not misleading.

                                  ARTICLE IV


                  REPRESENTATIONS AND WARRANTIES OF ACQUIROR

          Acquiror represents and warrants to the Company as follows:

  SECTION 4.1.  Organization and Qualification.

          Acquiror is a corporation duly organized, validly existing and in good
standing under the Laws of the State of Delaware.  Acquiror has the requisite
power and authority to own, lease and operate its Assets and properties and to
carry on its business as it is now being conducted and to perform the terms of
this Agreement and the transaction contemplated hereby.  Acquiror is duly
qualified to conduct its business, and is in good standing, in each jurisdiction
in which the failure to be so qualified and in good standing would reasonably be
expected to have an Acquiror Material Adverse Effect.

  SECTION 4.2.  Certificate of Incorporation and Bylaws.

          Acquiror has heretofore delivered to the Company a complete and
correct copy of the certificate of incorporation and the bylaws of Acquiror,
each as amended to date.  Such certificate of incorporation and bylaws are in
full force and effect.  Acquiror is not in violation of any of the provisions of
its certificate of incorporation or bylaws.

  SECTION 4.3.  Capitalization.

          The authorized capital stock of Acquiror consists of: (a) ninety
million (90,000,000) Acquiror Shares, of which, as of April 13, 1999, fifty-one
million six hundred seventy seven thousand six hundred and five (51,677,605)
shares are issued and outstanding; and (b) five million (5,000,000) shares of
Preferred Stock, par value $0.01 per share, $7.40 liquidation preference, of
which, as of April 13, 1999, one million four hundred eighty thousand seven
hundred seventy (1,480,770) shares are issued and outstanding.  Other than the
Acquiror's 1997 Stock Option Plan which may be amended from time to time, there
are no options, warrants or other rights, agreements, arrangements or
commitments of any character relating to the issued or unissued capital stock of
Acquiror or obligating Acquiror to issue or sell any shares of capital stock of,
or other equity interests in Acquiror, including any securities directly or
indirectly convertible into or exercisable or exchangeable for any capital stock
or other equity securities of Acquiror.  There are no outstanding obligations of
Acquiror to repurchase, redeem or otherwise acquire any shares of its capital
stock or make any investment (in the form of a loan, capital contribution or
otherwise) in any other person.  All of the

                                     A-32
<PAGE>


issued and outstanding Acquiror Shares have been, and the Acquiror Shares to be
issued in the Merger will be, duly authorized and validly issued in accordance
with applicable Laws and are and will be fully paid and nonassessable and not
subject to preemptive rights. Except for shares reserved pursuant to the
Acquiror's 1997 Stock Option Plan which may be amended from time to time, no
shares of capital stock of Acquiror have been reserved for any purpose.

  SECTION 4.4.  Authority.

          Acquiror has the necessary corporate power and authority to enter into
this Agreement, to perform its obligations hereunder and to consummate the
transactions contemplated hereby.  Except as described in Section 8.2(d) and
                                                          --------------
8.2(e), the execution and delivery of this Agreement by Acquiror and the
- ------
consummation by Acquiror of the transactions contemplated hereby have been duly
and validly authorized by all necessary corporate action and no other corporate
proceedings on the part of Acquiror are necessary to authorize this Agreement or
to consummate the transactions contemplated hereby.  This Agreement has been
duly executed and delivered by Acquiror and, assuming the due authorization,
execution and delivery by the Company, constitutes a legal, valid and binding
obligation of Acquiror, enforceable in accordance with its terms, except as such
enforceability may be limited by bankruptcy, insolvency, reorganization,
moratorium and other similar Laws of general applicability relating to or
affecting creditors' rights generally and by the application of general
principles of equity.

  SECTION 4.5.  No Conflict; Required Filings and Consents.

          (a) Except as required in Section 8.2(d) and 8.2(e), the execution and
                                    --------------     ------
delivery of this Agreement by Acquiror do not, and the performance by Acquiror
of its obligations under this Agreement will not, (i) conflict with or violate
the certificate of incorporation or bylaws of Acquiror, (ii) conflict with or
violate any Laws applicable to Acquiror or its Assets, or (iii) result in any
breach of or constitute a default under any note, bond, mortgage, indenture,
contract, agreement, lease, license, permit, franchise or other instrument or
obligation to which Acquiror is a party or by which Acquiror is bound, or by
which any of its Assets is subject.

          (b) The execution and delivery of this Agreement by Acquiror does not,
and the performance of this Agreement by Acquiror will not, require any consent,
approval, authorization or permit of, or filing with or notification to, any
Government Entity, except for (A) the filing and recordation of appropriate
merger documents as required by the DGCL, and (B) pursuant to applicable
requirements, if any, of the HSR Act and the Communications Act.

  SECTION 4.6.  Brokers.

          No broker, finder or investment banker is entitled to any brokerage,
finder's or other fee or commission in connection with the transactions
contemplated by this Agreement based upon arrangements made by or on behalf of
Acquiror.

  SECTION 4.7.  Reorganization Treatment.

          Neither Acquiror nor the Merger Sub has taken, agreed to take, or
intends to take any action that would cause the Merger to fail to qualify as a
reorganization within the meaning of Section 368 of the Code.

                                     A-33
<PAGE>


  SECTION 4.8.  Disclosure.

          No representations or warranties by Acquiror in this Agreement and no
statement or information contained in the Schedules hereto prepared by or on
behalf of Acquiror or any certificate furnished or to be furnished by Acquiror
to the Company pursuant to the provisions of this Agreement, or the most recent
Acquiror's 10-K (and any proxy statements, annual reports or any other documents
incorporated therein, if any) filed pursuant to the Exchange Act contains or
will contain any untrue statement of a material fact or omits or will omit to
state any fact necessary, in light of the circumstances under which it was made,
in order to make the statements herein or therein not misleading.

                                   ARTICLE V


                         REPRESENTATIONS AND WARRANTIES

                           OF ACQUIROR AND MERGER SUB

          Acquiror and Merger Sub jointly and severally represent and warrant to
the Company as follows:

  SECTION 5.1.  Organization and Qualification.

          Merger Sub is a corporation duly organized, validly existing and in
good standing under the Laws of the State of Delaware.  Merger Sub has the
requisite power and authority to own, lease and operate its Assets and
properties and to carry on its business as it is now being conducted and to
perform the terms of this Agreement and the transaction contemplated hereby.
Merger Sub is duly qualified to conduct its business, and is in good standing,
in each jurisdiction in which the failure to be so qualified an in good standing
would reasonably be expected to cause an Acquiror Material Adverse Effect.

  SECTION 5.2.  Certificate of Incorporation and Bylaws.

          Merger Sub has heretofore made available to the Company a complete and
correct copy of the certificate of incorporation and the bylaws of Merger Sub,
each as amended to date.  Such certificate of incorporation and bylaws are in
full force and effect.  Merger Sub is not in violation of any of the provisions
of its certificate of incorporation or bylaws or other organizational or
governing document.

  SECTION 5.3.  Authority.

          Merger Sub has the necessary corporate power and authority to enter
into this Agreement, to perform its obligations hereunder and to consummate the
transactions contemplated hereby.  Except as described in Section 8.2(d) and
                                                          --------------
8.2(e), the execution and delivery of this Agreement by Merger Sub and the
- ------
consummation by Merger Sub of the transactions contemplated hereby have been
duly and validly authorized by all necessary corporate action and no other
corporate proceedings on the part of Merger Sub are necessary to authorize this
Agreement or to consummate the transactions contemplated hereby.  This Agreement
has been duly executed and delivered by Merger Sub and, assuming the due
authorization, execution and delivery by the Company and Acquiror, constitutes a
legal, valid and binding obligation of Merger Sub, enforceable in accordance
with its terms, except as such enforceability may be limited by bankruptcy,
insolvency, reorganization, moratorium and other similar Laws of general
applicability relating to or affecting creditors' rights generally and by the
application of general principles of equity.

                                     A-34
<PAGE>


  SECTION 5.4.  No Conflict; Required Filings and Consents.

          (a) Except as required in Section 8.2(d) and 8.2(e), the execution and
                                    --------------     ------
delivery of this Agreement by Merger Sub do not, and the performance by Merger
Sub of its obligations under this Agreement will not, (i) conflict with or
violate the certificate of incorporation or bylaws of Merger Sub, (ii) conflict
with or violate any Laws applicable to Merger Sub or its Assets, or (iii) result
in any breach of or constitute a default under any note, bond, mortgage,
indenture, contract, agreement, lease, license, permit, franchise or other
instrument or obligation to which Merger Sub is a party or by which Merger Sub
is bound, or by which any of its Assets is subject.

          (b) The execution and delivery of this Agreement by Merger Sub does
not, and the performance of this Agreement by Merger Sub will not, require any
consent, approval, authorization or permit of, or filing with or notification
to, any Government Entity, except for (A) the filing and recordation of
appropriate merger documents as required by the DGCL, and (B) pursuant to
applicable requirements, if any, of the HSR Act and the Communications Act.


                                   ARTICLE VI


                                   COVENANTS

  SECTION 6.1.  AFFIRMATIVE COVENANTS OF THE COMPANY.

          The Company hereby covenants and agrees that, prior to the Effective
Time, unless otherwise expressly contemplated by this Agreement or consented to
in writing by Acquiror, the Company shall (a) operate its business in the usual
and ordinary course consistent with past practices and in accordance with
applicable Laws; (b) preserve intact its business organization, maintain its
rights and contracts, use its commercially reasonable efforts to retain the
services of its principal officers and Key Employees and maintain its
relationship with its respective suppliers, contractors, distributors, customers
and others having business relationships with it; (c) keep its Assets in as good
repair and condition as at present, ordinary wear and tear excepted; and (d)
keep in full force and effect insurance comparable in amount and scope of
coverage to that currently maintained.

  SECTION 6.2.  Negative Covenants of the Company.

          Except (i) as expressly contemplated by this Agreement or otherwise
consented to in writing by Acquiror (which consent, for purposes of Section
                                                                    -------
6.2(a) only, will not be unreasonably withheld) and (ii) with respect to matters
- ------
disclosed in Schedules to this Agreement which require continued performance
pursuant to a contract existing as of the date of this Agreement (but not
including any modification made after the date of this Agreement) or pursuant to
Laws, from the date hereof until the Effective Time, the Company shall not do
any of the following:

          (a) (i) increase in any manner the compensation or fringe benefits of,
or pay any bonus to, any director, officer or employee; (ii) grant any severance
or termination pay (other than pursuant to the normal severance practices or
existing agreements of the Company in effect on the date of this Agreement) to,
or enter into any severance agreement with, any director, officer or employee,
or enter into any employment agreement with any director, officer or employee
other than a severance agreement entered into pursuant to a valid employment
agreement listed on Schedule 3.12 or otherwise with the prior written consent of
                    -----------
Acquiror; (iii) establish,

                                     A-35
<PAGE>


adopt, enter into or amend any ERISA Plan or other arrangement, except as may be
required to comply with applicable Law; (iv) pay any benefit not provided for
under any ERISA Plan or other arrangement; (v) grant any awards under any bonus,
incentive, performance or other compensation plan or arrangement or ERISA Plan
or other arrangement (including the grant of stock options, stock appreciation
rights, stock-based or stock-related awards, performance units or restricted
stock, or the removal of existing restrictions in any ERISA Plan or other
arrangement or agreement or awards made thereunder), (vi) take any action to
fund or in any other way secure the payment of compensation or benefits under
any agreement or (vii) promote or fire any director, officer or employee;

          (b) declare, set aside or pay any dividend on, or make any other
distribution in respect of, outstanding shares of capital stock other than
capital stock repurchased from departing employees in the ordinary course of
business;

          (c) (i) redeem, purchase or otherwise acquire any shares of capital
stock of the Company or any securities or obligations convertible into or
exchangeable for any shares of capital stock of the Company, or any options,
warrants or conversion or other rights to acquire any shares of capital stock of
the Company or any such securities or obligations, or any other securities
thereof, other than (x) redemption and purchases from departing employees in the
ordinary course of business or (y) stock acquired by the Company from current
employees pursuant to historic Company practices in connection with the exercise
of such employees' stock options; (ii) effect any reorganization or
recapitalization; or (iii) split, combine or reclassify any of its capital stock
or issue or authorize or propose the issuance of any other securities in respect
of, in lieu of or in substitution for, shares of its capital stock.

          (d) issue, deliver, award, grant or sell, or authorize the issuance,
delivery, award, grant or sale (including the grant of any limitations in voting
rights or other Encumbrances) of, any shares of any class of its capital stock
(including shares held in treasury but excluding shares issuable upon the
exercise of options outstanding on the date hereof in accordance with their
terms as of the date hereof), any securities convertible into or exercisable or
exchangeable for any such shares, or any rights, warrants or options to acquire,
any such shares, or amend or otherwise modify the terms of any such rights,
warrants or options the effect of which shall be to make such terms more
favorable to the holders thereof;

          (e) acquire or agree to acquire, by merging or consolidating with, by
purchasing an equity interest in or a portion of the Assets of, or by any other
manner, any business or any corporation, partnership, association or other
business organization or division thereof, or otherwise acquire or agree to
acquire any Assets of any other person (other than the purchase of assets from
suppliers or vendors in the ordinary course of business);

          (f) sell, lease, exchange, mortgage, pledge, transfer or otherwise
subject to any Encumbrance or dispose of, or agree to sell, lease, exchange,
mortgage, pledge, transfer or otherwise subject to any Encumbrance or dispose
of, any of its Assets, except for sales, dispositions or transfers in the
ordinary course of business;

          (g) propose or adopt any amendments to its articles or certificate of
incorporation, bylaws or other comparable charter or organizational documents;


          (h) make or rescind any express or deemed election relating to Taxes,
settle or compromise any claim, action, suit, litigation, proceeding,
arbitration,

                                     A-36
<PAGE>


investigation, audit or controversy relating to Taxes which would reasonably be
expected to result in a Company Material Adverse Effect, or change any of its
methods of reporting income or deductions for federal income tax purposes from
those employed in the preparation of the federal income tax returns for the
taxable year ended December 31, 1997, except in either case as may be required
by Law, the Internal Revenue Service or generally accepted accounting
principles.

          (i) make or agree to make any new capital expenditures which are not
included in the Company's 1999 capital budget, a copy of which was furnished to
Acquiror, to the extent that such new capital expenditures exceed in the
aggregate $25,000;

          (j) (i) incur any indebtedness for borrowed money or guarantee any
such indebtedness of another person, issue or sell any debt securities or
warrants or other rights to acquire any debt securities of the Company,
guarantee any debt securities of another person, enter into any "keep well" or
other agreement to maintain any financial statement condition of another person
or enter into any agreement having the economic effect of any of the foregoing,
except for borrowings incurred in the ordinary course of business, or (ii) make
any loans, advances or capital contributions to, or investments in, any other
person other than travel and payroll advances made to employees in the ordinary
course of business.

          (k) pay, discharge, settle or satisfy any claims, liabilities or
obligations (whether absolute or contingent, matured or unmatured, known or
unknown), other than the payments, discharges or satisfactions, in the ordinary
course of business which are materially in accordance with their terms, of
liabilities reflected or reserved against in, or contemplated by, the most
recent Financial Statements or waive any material benefits of, or agree to
modify in any material respect, any confidentiality, standstill or similar
agreements to which the Company is a party;

          (l) waive, release or assign any rights or claims, or modify, amend or
terminate any agreement to which the Company is a party;

          (m) make any change in any method of accounting or accounting practice
or policy other than those required by generally accepted accounting principles
or a Government Entity;

          (n) take any action or fail to take any action that would have a
Company Material Adverse Effect prior to or after the Effective Time or a
material adverse effect after the Effective Time, or that would adversely affect
the ability of the Company prior to the Effective Time, or Acquiror or any of
its subsidiaries after the Effective Time, to obtain consents of third parties
or approvals of Government Entities required to consummate the transactions
contemplated in this Agreement; or

          (o) authorize, or commit or agree to do any of the foregoing.

  SECTION 6.3.  Certain Tax Matters.

          From the date hereof until the Effective Time, the Company (a) will
prepare and timely file with the relevant Taxing authority all Company Tax
returns ("Post-Signing Returns") required to be filed, which Post-Signing
          --------------------
Returns shall be accurate in all material respects, (b) will timely pay all
Taxes due and payable with respect to such Post-Signing Returns, (c) will pay or
otherwise make adequate provision for all Taxes payable by the Company for which
no Post-Signing Return is due prior to the Effective

                                     A-37
<PAGE>


Time, and (d) will promptly notify Acquiror of any action, suit, proceeding,
claim or audit pending against or with respect to the Company in respect of any
Taxes.

                                  ARTICLE VII


                             ADDITIONAL AGREEMENTS

  SECTION 7.1.  Registration Statement; Proxy Statement.

          (a) As promptly as practicable after the execution of this Agreement,
Acquiror shall prepare and file with the SEC a registration statement on Form S-
4 (such registration statement, together with the amendments thereto being the
"Registration Statement"), containing a proxy statement/prospectus, in
- -----------------------
connection with (i) the registration under the Securities Act of 1933, as
amended (the "Securities Act") of the Acquiror Shares issuable pursuant to
              --------------
Section 2.1, (ii) the vote or consent of the Company Stockholders with respect
- -----------
to the Merger (such proxy statement/prospectus, together with any amendments
thereof or supplements thereto, in each case in the form or forms delivered to
the Company Stockholders, being the "Proxy Statement"), (iii) and the other
                                     ---------------
transactions contemplated by this Agreement.  Acquiror agrees to provide the
Company with an opportunity to review and comment on the Registration Statement
and the Proxy Statement before filing.  Acquiror agrees promptly to provide the
Company with copies of all correspondence from and all responsive correspondence
to the SEC regarding the Registration Statement and Proxy Statement.  Acquiror
agrees promptly to notify the Company of all stop orders or threatened stop
orders of which it becomes aware with respect to the Registration Statement.
Each of Acquiror and the Company will use all reasonable best efforts to have or
cause the Registration Statement to become effective as promptly as practicable,
and shall take any action required to be taken under any applicable federal or
state securities Laws in connection with the issuance of Acquiror Shares in the
Merger.  Each of Acquiror and the Company shall furnish all information
concerning it and the holders of its capital stock as the other may reasonably
request in connection with such actions.  As promptly as practicable after the
Registration Statement shall have become effective, the Company shall mail or
otherwise deliver the Proxy Statement to its stockholders, and the Company shall
comply with the proxy solicitation rules and regulations under the DGCL in
connection with the solicitation of such stockholders.  The Proxy Statement
shall include the recommendation of the Company's Board of Directors to the
Company Stockholders to vote for or consent to the approval of this Agreement
and the transactions contemplated hereby.

          (b) The information supplied by the Company for inclusion in the
Registration Statement shall not, at the time the Registration Statement is
declared effective, contain any untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary in order to
make the statements therein not misleading.  The information supplied by the
Company for inclusion in the Proxy Statement to be sent to the Company
Stockholders in connection with securing the vote or consent of the Company
Stockholders to consider the Merger shall not, at the date the Proxy Statement
(or any amendment thereof or supplement hereto) is first delivered to
stockholders, at the time the vote or consent is secured or at the Effective
Time, contain any untrue statement of a material fact or omit to state any
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 are made,
not misleading.  If at any time prior to the Effective Time any event or
circumstance relating to the Company or any of its affiliates, or its or their
respective officers or directors, should be discovered by the Company which
should be set forth in an amendment to the Registration Statement or a

                                     A-38
<PAGE>


supplement to the Proxy Statement, the Company shall promptly inform Acquiror.
All documents that the Company is responsible for filing with the SEC in
connection with the transactions contemplated herein will comply as to form and
substance in all material respects with the applicable requirements of the
Securities Act and the rules and regulations thereunder and the Securities
Exchange Act of 1934, as amended (the "Exchange Act") and the rules and
                                       ------------
regulations thereunder.  The Company's liability pursuant to this Section shall
not be reduced or diminished in any manner by the fact that a third party,
including, but not limited to, Company's counsel, Company's banker, Acquiror, or
Acquiror's counsel, assisted in the presentation of such information or
statements in the Proxy Statement or Registration Statement, or any amendments
or supplements thereto.

          (c) The information supplied by Acquiror for inclusion in the
Registration Statement shall not, at the time the Registration Statement is
declared effective, contain any untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary in order to
make the statements therein not misleading.  The information supplied by
Acquiror for inclusion in the Proxy Statement to be sent to the Company
Stockholders in connection with securing the vote or consent shall not, at the
date the Proxy Statement (or any amendment thereof or supplement thereto) is
first delivered to stockholders, at the time the vote or consent is secured or
at the Effective Time, contain any untrue statement of a material fact or omit
to state any 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 are made, not misleading.  If at any time prior to the Effective Time any
event or circumstance relating to Acquiror or any of its respective affiliates,
or its or their respective officers or directors, should be discovered by
Acquiror which should be set forth in an amendment to the Registration Statement
or a supplement to the Proxy Statement, Acquiror shall promptly inform the
Company.  All documents that Acquiror is responsible for filing with the SEC in
connection with the transactions contemplated herein will comply as to form and
substance in all material respects with the applicable requirements of the
Securities Act and the rules and regulations thereunder and the Exchange Act and
the rules and regulations thereunder.

          (d) The Company and Acquiror each hereby (i) consents to the use of
its name and, on behalf of its subsidiaries and affiliates, the names of such
subsidiaries and affiliates and to the inclusion of financial statements and
business information relating to such party and its subsidiaries and affiliates
(in each case, to the extent required by applicable securities Laws) in any
registration statement or proxy statement prepared by the Company or Acquiror
pursuant to this Agreement; (ii) agrees to use its reasonable commercial efforts
to obtain the written consent of any person retained by it which may be required
to be named (as an expert or otherwise) in such registration statement or proxy
statement; and (iii) agrees to cooperate, and to use its reasonable commercial
efforts to cause its subsidiaries and affiliates to cooperate, with any legal
counsel, investment banker, accountant or other agent or representative retained
by any of the parties specified in clause (i) in connection with the preparation
of any and all information required, as determined after consultation with each
party's counsel, to be disclosed by applicable securities Laws in any such
registration statement or proxy statement.

  SECTION 7.2.  Company Stockholder Approval.

          As promptly as practicable after the Registration Statement has become
effective, the Company shall submit this Agreement and the transactions
contemplated hereby to the Company Stockholders for approval and adoption as
provided by the DGCL

                                     A-39
<PAGE>


and its certificate of incorporation and bylaws. The Company shall use its best
efforts to solicit and obtain the consent of the Company Stockholders sufficient
to approve the Merger and this Agreement and to enable the Closing to occur as
promptly as practicable. The materials submitted to the Company Stockholders
shall be subject to review and approval by Acquiror and include information
regarding the Company and Acquiror, the terms of the Merger and this Agreement
and the recommendation of the Board of Directors of the Company in favor of the
Merger and this Agreement.

  SECTION 7.3.  Appropriate Action; Consents; Filings.

          (a) Upon the terms and subject to the conditions set forth in this
Agreement, the Company and Acquiror shall use their reasonable commercial
efforts to take, or cause to be taken, all appropriate action, and do, or cause
to be done, and to assist and cooperate with the other parties in doing all
things necessary, proper or advisable under applicable Law or otherwise to
consummate and make effective the transactions contemplated by this Agreement as
promptly as practicable, including (i) executing and delivering any additional
instruments necessary, proper or advisable to consummate the transactions
contemplated by, and to carry out fully the purposes of, this Agreement, (ii)
obtaining from any Government Entities any material Licenses required to be
obtained or made by Acquiror or the Company or any of their subsidiaries in
connection with the authorization, execution and delivery of this Agreement and
the consummation of the transactions contemplated herein, including, without
limitation, the Merger, and (iii) making all necessary filings, and thereafter
making any other required submissions, with respect to this Agreement and the
Merger required under (A) the Securities Act, the Exchange Act and any other
applicable federal or state securities Laws, (B) the HSR Act and (C) any other
applicable Law; provided that Acquiror and the Company shall cooperate with each
                --------
other in connection with the making of all such filings, including providing
copies of all such documents to the non-filing party and its advisors prior to
filing and discussing all reasonable additions, deletions or changes suggested
in connection therewith.  The Company and Acquiror shall furnish to each other
all information required for any application or other filing to be made pursuant
to the rules and regulations of any applicable Law in connection with the
transactions contemplated by this Agreement.

          (b)  (i)  The Company and Acquiror shall give (or shall cause their
respective subsidiaries to give) any notices to third parties, and use, and
cause their respective subsidiaries to use, their reasonable commercial efforts
to obtain any third party consents, approvals or waivers (A) necessary, proper
or advisable to consummate the transactions contemplated in this Agreement, (B)
disclosed or required to be disclosed in the Schedules, as the case may be, or
(C) required to prevent a Company Material Adverse Effect from occurring prior
to or after the Effective Time or an Acquiror Company Material Adverse Effect
from occurring prior to or after the Effective Time.

          (ii) In the event that either the Company or Acquiror shall fail to
obtain any third party consent, approval or waiver described in subsection
(b)(i) above, such party shall use its reasonable commercial efforts, and shall
take any such actions reasonably requested by the other parties hereto, to
minimize any adverse effect upon the Company and Acquiror, their respective
subsidiaries, and their respective businesses resulting, or which could
reasonably be expected to result after the Effective Time, from the failure to
obtain such consent, approval or waiver.

          (c) From the date of this Agreement until the Effective Time, the
Company and Acquiror shall promptly notify each other in writing of any pending
or, to

                                     A-40
<PAGE>


the Knowledge of the Company or Acquiror (or their respective subsidiaries),
threatened action, proceeding or investigation by any Government Entity or any
other person (i) challenging or seeking damages in connection with the Merger or
the conversion of the Company Capital Stock into Acquiror Shares pursuant to the
Merger or (ii) seeking to restrain or prohibit the consummation of the Merger or
otherwise limit the right of Acquiror or its subsidiaries to own or operate all
or any portion of the businesses or Assets of the Company. The Company and
Acquiror shall cooperate with each other in defending any such action,
proceeding or investigation, including seeking to have any stay or temporary
restraining order entered by any court or other Government Entity vacated or
reversed.

  SECTION 7.4.  Update Disclosure; Breaches.

          From and after the date of this Agreement until the Effective Time,
each party hereto shall promptly notify the other parties hereto by written
update to its Disclosure Schedule of (i) any representation or warranty made by
it in connection with this Agreement becoming untrue or inaccurate, (ii) the
occurrence, or non-occurrence, of any event the occurrence, or non-occurrence,
of which reasonably could be expected to cause any condition to the obligations
of any party to effect the Merger and the other transactions contemplated by
this Agreement not to be satisfied, or (iii) the failure of the Company,
Acquiror or Merger Sub, as the case may be, to comply with or satisfy any
covenant, condition or agreement to be complied with or satisfied by it pursuant
to this Agreement which reasonably could be expected to result in any condition
to the obligations of any party to effect the Merger and the other transactions
contemplated by this Agreement not to be satisfied; provided, however, the
                                                    --------  -------
delivery of any notice pursuant to this Section 7.4 shall not cure any breach of
                                        -----------
any representation or warranty requiring disclosure of such matter prior to the
date of this Agreement or otherwise limit or affect the rights and remedies
available hereunder to the party receiving such notice.

  SECTION 7.5.  Public Announcements.

          The Company shall not issue or approve any news releases or other
public announcement concerning the transactions contemplated by this Agreement
without the written prior approval of the Acquiror.

  SECTION 7.6.  Unaudited Financial Information.

          The Company will cause to be prepared and will furnish to Acquiror as
promptly as possible an unaudited balance sheet of the Company as of the last
day of each month ending after December 31, 1998 and the related unaudited
statements of income of the Company for the one-month period then ended.  The
Company will ensure that such unaudited statements are complete and correct in
all material respects, have been prepared in accordance with the books and
records of the Company, and present fairly the consolidated financial position
of the Company and its results of operations and cash flows as of and for the
respective dates and time periods in accordance with generally accepted
accounting principles applied on a basis consistent with prior accounting
periods, except as noted thereon and subject to the absence of footnotes and a
statement of cash flows and normal and recurring year-end adjustments which are
not expected to be material in amount.

  SECTION 7.7.  Access to Information.

          The Company has afforded and shall afford Acquiror and its
accountants, counsel and other representatives, reasonable access during normal
business hours during the period prior to the Effective Time to (a) all of the
Company's properties, books,

                                     A-41
<PAGE>


contracts, commitments and records, and (b) all other information concerning the
business, properties and personnel of the Company and as Acquiror may reasonably
request. The Company agrees to provide to Acquiror and its accountants, counsel
and other representatives copies of internal financial statements promptly upon
request. No information or knowledge obtained in any investigation pursuant to
this Section 7.7 shall affect or be deemed to modify any representation or
     -----------
warranty of the Company contained herein. In the event of the termination of
this Agreement, Acquiror shall destroy or deliver to the Company all
confidential documents, work papers and other materials, and all copies thereof,
obtained by Acquiror from the Company as a result of this Agreement or in
connection herewith, whether obtained before or after the execution and delivery
of this Agreement.

  SECTION 7.8.  Confidentiality.

          Each of the parties hereto hereby agrees that any and all information
or knowledge obtained pursuant to this Agreement, or pursuant to the negotiation
and execution of this Agreement or the effectuation of the transactions
contemplated hereby shall be subject to the confidentiality agreement dated
January 15, 1999 (the "Confidentiality Agreement"), the terms of which are
                       -------------------------
incorporated herein by reference.

  SECTION 7.9.  No Solicitation.

          (a) Company shall not initiate or solicit or take any other action to
promote, any inquiries or the making of any proposal that constitutes, or may
reasonably be expected to lead to, any Competing Transaction (as such term is
defined below), or enter into discussions or furnish any information or
negotiate with any person or entity or otherwise cooperate in any way in
furtherance of such inquiries or to obtain a Competing Transaction, or agree to
or endorse any Competing Transaction, or authorize any of its officers,
employees, agents, representatives or directors to take any such action, and
Company shall direct and instruct and use its reasonable efforts to cause its
directors, officers, employees, agents and representatives (including, without
limitation, any investment banker, financial advisor, attorney or accountant
retained by Company) not to take any such action, and Company shall promptly
notify Acquiror if any such inquiries or proposals are received by Company or
any of its officers, directors, employees, agents, investment bankers, financial
advisors, attorneys, accountants or other representatives, and Company shall
promptly inform Acquiror as to the material terms of such inquiry or proposal
and, if in writing, promptly deliver or cause to be delivered to Acquiror a copy
of such inquiry or proposal, and Company shall keep Acquiror informed, on a
current basis, of the nature of any such inquiries and the status and terms of
any such proposals; provided, however, that nothing contained in this Section
                    --------  -------                                 -------
7.9 shall prohibit the board of directors of the Company from furnishing
- ---
information to, or entering into discussions or negotiations with, or agreeing
to or endorsing any Competing Transaction with, any person or entity that makes
a bona fide proposal to acquire Company pursuant to a merger, consolidation,
share exchange, business combination or other similar transaction (a "Bona Fide
                                                                      ---------
Proposal"), if, and only to the extent that, (A) the board of directors of the
- --------
Company, after consultation with outside counsel, determines in good faith that
such action is required for the board of directors of the Company to comply with
its fiduciary duties to the Company Stockholders imposed by the DGCL, (B) prior
to furnishing such information to, or entering into discussions or negotiations
with, such person or entity, it provides written notice to Acquiror to the
effect that Company is furnishing information to, or entering into discussions
or negotiations with, such person or entity, (C) prior to furnishing such
information to such person or entity, Company receives from such person or
entity an executed confidentiality agreement with terms no less favorable to
Company than those contained in the confidentiality agreement executed by
Acquiror dated January 15, 1999

                                     A-42
<PAGE>


and (D) Company keeps Acquiror informed, on a current basis, of the status and
content of any such discussions or negotiations.

          (b) For purposes of this Agreement, a "Competing Transaction" shall
                                                 ---------------------
mean any of the following involving Company (other than the transactions
contemplated by this Agreement):  (i) any merger, consolidation, share exchange,
business combination, or other similar transaction; (ii) any sale, lease,
exchange, mortgage, pledge, transfer or other disposition of ten percent (10%)
or more of the assets of Company, other than sales in the ordinary course of
business, or issuance of twenty percent (20%) or more of the outstanding voting
securities of Company in a single transaction or series of transactions; (iii)
any tender offer or exchange offer for twenty percent (20%) or more of the
outstanding shares of capital stock of Company; (iv) any solicitation of proxies
in opposition to approval by Company's stockholders of the Merger; or (v) any
agreement to, or public announcement by Company or any other person of a
proposal, plan or intention to do any of the foregoing.

  SECTION 7.10.  Employees.

          (a) Within thirty (30) days from the date hereof, Acquiror and Merger
Sub shall notify the Company which employees will not be retained after the
Effective Time.  The Company shall, subject to the terms and conditions of this
Agreement, use its reasonable efforts to encourage the employees of the Company
to continue their employment and relationship with the Company following the
Effective Time.

          (b) Immediately following the Closing, all employees of the Company
that become employees of Acquiror or its subsidiaries ("Merger Employees") and
their dependents and beneficiaries, as applicable, during such time as
employment with the Acquiror and its affiliates is continued, shall be eligible
to participate in the employee benefit plans of the Acquiror and its affiliates
("Merger Sub Benefit Plans") on the same terms and conditions as similarly
situated employees of the Acquiror and its affiliates are eligible to
participate therein but not subject to any preexisting condition exclusions.
Merger Sub Benefit Plans shall recognize prior service of a Merger Employee with
the Company to the extent recognized under the corresponding Company benefit
plans prior to the Closing as service with the Acquiror and its affiliates for
(i) any Merger Sub Benefit Plan that is not an employee pension benefit plan for
all purposes and (ii) any Merger Sub Benefit Plan that is an employee pension
benefit plan, for all purposes other than benefit accrual.  Except as provided
above, the benefit coverage which Acquiror or its affiliates will provide to the
Merger Employees under Merger Sub Benefit Plans shall commence immediately
following the Closing.

          (c) As soon as practicable before Closing, but in no event less than
one (1) day prior to Closing, Company shall adopt all corporate resolutions
necessary to: (i) freeze participation and benefit accruals under the Company
401(k) Plan, effective no later than one (1) day prior to Closing; and (ii)
terminate the Company 401(k) Plan, effective no later than one (1) day prior to
Closing.  As soon as practicable prior to Closing, Company shall contribute to
each Plan all contributions, including but not limited to employee deferrals and
related matching contributions, required or necessary under the terms of such
Plan covering the benefits that have accrued as of Closing.  Following the
Closing, Acquiror and Merger Sub shall take all steps necessary to obtain a
favorable determination letter with respect to the termination of the Company's
401(k) Plan.  Distribution of all Company 401(k) Plan assets not otherwise
distributable shall be made following receipt of such favorable determination
letter, and the 401(k) Plan maintained by Acquiror or its affiliates shall
accept such distributions from Merger Employees in the form of rollover
contributions.

                                     A-43
<PAGE>

  SECTION 7.11.  Company Affiliate Agreements.

          The Company acknowledges and agrees that the Acquiror Shares issuable
to affiliates of the Company (the "Company Affiliates") will be subject to Rule
                                   ------------------
145(d) of the rules and regulations of the SEC under the Securities Act.
Accordingly, the Company agrees to use reasonable efforts to deliver or cause to
delivered to Acquiror, on or prior to the Effective Time, from each of the
Company Affiliates, a written agreement in form and substance reasonably
satisfactory to Acquiror (each an "Affiliate Agreement"), which will, among
                                   -------------------
other things, contain (a) a covenant of each Company Affiliate to transfer his
or her Acquiror Shares in accordance with Rule 145(d) of the Securities Act and
any other applicable state and federal securities Laws, and (b) an appropriate
legend to be placed on such Company Affiliate's stock certificate with respect
to the foregoing restrictions.

                                 ARTICLE VIII

                              CLOSING CONDITIONS

  SECTION 8.1.  Conditions to Obligations of the Parties.

          The respective obligations of the parties hereto to effect the Merger
and the other transactions contemplated herein shall be subject to the
satisfaction at or prior to the Effective Time of the following conditions,
which may be waived, in whole or in part, to the extent permitted by applicable
Law:

          (a) Stockholder Approval.  This Agreement and the Merger shall have
              --------------------
been approved and adopted by the requisite vote of the Company Stockholders.


          (b) No Order.  No Government Entity or federal or state court of
              --------
competent jurisdiction shall have enacted, issued, promulgated, enforced or
entered any statute, rule, regulation, executive order, decree, judgment,
injunction or other order (whether temporary, preliminary or permanent), in any
case which is in effect and which prevents or prohibits consummation of the
Merger; provided, however, that each of the parties shall use its reasonable
        --------  -------
best efforts to cause any such decree, judgment, injunction or other order to be
vacated or lifted and provided further, that the failure to obtain a required
consent or approval of a Government Entity (other than those specified in
Section 8.1(c) and Section 8.1(d)) shall not form the basis for an assertion
- --------------     --------------
that this condition is not satisfied.

          (c) HSR Act.  The applicable waiting period with respect to the Merger
              -------
and the other transactions contemplated hereby, together with any extensions
thereof, under the HSR Act shall have expired or been terminated.

          (d) Certain Governmental Approvals.  All consents, waivers, approvals
              ------------------------------
and authorizations required to be obtained, and all filings or notices required
to be made, by Acquiror or the Company prior to consummation of the transactions
contemplated in this Agreement (other than the filing of the Certificate of
Merger in accordance with Delaware Law) shall have been obtained from and made
with the FCC.

          (e) Effectiveness of the Registration Statement.  The Registration
              -------------------------------------------
Statement shall have been declared effective by the SEC under the Securities
Act.  No stop order suspending the effectiveness of the Registration Statement
shall have been issued by the SEC and no proceedings for that purpose shall have
been initiated or, to the Knowledge of Acquiror or the Company, threatened by
the SEC.  Acquiror shall have received all other federal or state securities
permits and other authorizations necessary

                                     A-44
<PAGE>


to issue Acquiror Shares in exchange for Company Common Stock and to consummate
the Merger.

          (f) Legal Proceedings.  No action or proceeding before any Government
              -----------------
Entity shall have been instituted or threatened (and not subsequently settled,
dismissed, or otherwise terminated) which is reasonably expected to restrain,
prohibit or invalidate the Merger or other transactions contemplated by this
Agreement other than an action or proceeding instituted or threatened by a party
hereto.

  SECTION 8.2.  Additional Conditions to Obligations of Acquiror.

          The obligations of Acquiror and Merger Sub to effect the Merger and
the other transactions contemplated in this Agreement are also subject to the
fulfillment at or prior to the Effective Time of the following conditions, any
or all of which may be waived, in whole or in part, to the extent permitted by
applicable Law:

          (a) Representations and Warranties.  The representations and
              ------------------------------
warranties of the Company made in this Agreement shall be true and correct in
all material respects, on and as of the Effective Time with the same effect as
though such representations and warranties had been made on and as of the
Effective Time (provided that any representation or warranty contained therein
that is qualified by a materiality standard shall not be further qualified
hereby), except for representations and warranties that speak as of a specific
date or time (which need only be true and correct in all material respects as of
such date or time).  Acquiror shall have received a certificate signed by the
chief executive officer of the Company in the name of the Company to that effect
with respect to the Company's representations and warranties.

          (b) Agreements and Covenants.  The agreements and covenants of the
              ------------------------
Company required to be performed on or before the Effective Time shall have been
performed in all material respects.  Acquiror shall have received a certificate
signed on behalf of the Company by the chief executive officer of the Company to
that effect with respect to the Company's covenants.

          (c) No Company Material Adverse Change.  There shall have not occurred
              ----------------------------------
a material adverse change in the business, operations, financial condition,
Assets or liabilities of the Company (regardless of whether or not such events
or changes are inconsistent with the representations and warranties given herein
by the Company), except changes contemplated by this Agreement.

          (d) Board Approval.  Acquiror and Merger Sub shall have obtained
              --------------
approval of this Agreement by the Boards of Directors of Acquiror and Merger
Sub, respectively.

          (e) Lender Approval.  Acquiror shall have obtained approval of this
              ---------------
Agreement by the Majority Lenders as such term is defined in the First Amended
and Restated Credit Agreement dated as of February 24, 1998 by and among Merger
Sub, NationsBank, N.A., as a Lender and Administrative Lender, and the other
Lenders party thereto, as further amended.

          (f) Required Consents.  The Company shall have delivered to Acquiror
              -----------------
at or before Closing all consents or notices necessary to be obtained or made by
the Company in connection with the transactions contemplated by this Agreement.


                                     A-45
<PAGE>


          (g) Company Securities.  Other than 30,772,170 shares of Company
              ------------------
Common Stock and 122 options to purchase 1,936,500 shares of Company Stock,
there shall be no other securities of the Company outstanding that are
securities convertible into or exchangeable for Company Common Stock or any
other equity securities of the Company and no outstanding options, rights
(preemptive or otherwise), or warrants to purchase or to subscribe for any
shares of such stock or other equity securities of the Company.

          (h) Accountant Letters.  Acquiror shall have received from the Company
              ------------------
"cold comfort" letters of Arthur Andersen LLP dated the date on which the
Registration Statement shall become effective and the Effective Time,
respectively, and addressed to Acquiror, reasonably customary in scope and
substance for letters delivered by independent public accountants in connection
with registration statements similar to the Registration Statement and
transactions such as those contemplated by this Agreement.

          (i) Escrow Agreement.  Acquiror, Merger Sub, the Escrow Agent and the
              ----------------
Stockholders' Representative shall have entered into the Escrow Agreement at or
before Closing.

          (j) Legal Opinion.  Acquiror shall have received an opinion from
              -------------
Sutherland, Asbill & Brennan, LLP, counsel to the Company, in form and substance
reasonably satisfactory to Acquiror and its counsel.

          (k) Noncompetition Agreement.  Acquiror shall have entered into a
              ------------------------
Noncompetition Agreement duly executed by James H. Black, Jr. in form, scope and
substance reasonably acceptable to Acquiror (the "Noncompetition Agreement").


          (l) Company Affiliate Agreements.  Acquiror shall have received an
              ----------------------------
executed Affiliate Agreement from each of the Company Affiliates.

          (m) Other Closing Documents.  The Company shall have executed and/or
              -----------------------
delivered to Acquiror such additional documents, certificates, opinions and
agreements as Acquiror may reasonably request.

          (n)  [OMITTED]

          (o) Appraisal Rights.  The number of Dissenting Shares shall not be so
              ----------------
large that the Merger would fail to qualify as a reorganization within the
meaning of Section 368 of the Code.

          (p)  [OMITTED]

          (q) Employees.  The employees identified on Schedule 8.2 shall have
              ---------                               ------------
agreed to become employees of ITC/DeltaCom\ Communications, Inc. following the
Effective Time and shall have executed a Confidentiality and Nonsolicitation
Agreement, substantially in the form of Exhibit B hereto (the "Nondisclosure
                                        --------
Agreement").

          (r) Employee Loans.  All loans listed Schedule 3.2 items (a) and (b)
              --------------                    ------------
shall be paid in full.  With respect to the loan listed in Schedule 3.2 items
                                                           ------------
(c), such loan will be secured by Acquiror Shares subject to documentation
reasonably acceptable to Acquiror.

                                     A-46
<PAGE>


  SECTION 8.3.  Additional Conditions to Obligations of the Company.

          The obligations of the Company to effect the Merger and the other
transactions contemplated in this Agreement are also subject to the fulfillment
at or prior to the Effective Time of the following conditions any or all of
which may be waived, in whole or in part, to the extent permitted by applicable
Law:

          (a) Representations and Warranties.  The representations and
              ------------------------------
warranties of Acquiror and Merger Sub made in this Agreement shall be true and
correct in all material respects, on and as of the Effective Time with the same
effect as though such representations and warranties had been made on and as of
the Effective Time (provided that any representation or warranty contained
herein that is qualified by a materiality standard shall not be further
qualified hereby), except for representations and warranties that speak as of a
specific date or time other than the Effective Time (which need only be true and
correct in all material respects as of such date or time).  The Company shall
have received a certificate signed on behalf of Acquiror by the chief executive
officer of Acquiror to that effect.

          (b) Agreements and Covenants.  The agreements and covenants of
              ------------------------
Acquiror and Merger Sub required to be performed on or before the Effective Time
shall have been performed in all material respects.  The Company shall have
received a certificate of the chief executive officer of Acquiror to that
effect.

          (c) Required Consents.  The Acquiror and Merger Sub shall have
              -----------------
delivered to Company at or before Closing all consents or notices necessary to
be obtained or made by Acquiror and Merger Sub, as the case may be, in
connection with the transactions contemplated by this Agreement.

          (d) Escrow Agreement.  Acquiror, Merger Sub, the Escrow Agent and the
              ----------------
Stockholders' Representative shall have entered into the Escrow Agreement at or
before Closing.

          (e) Legal Opinion.  Company shall have received an opinion from Hogan
              -------------
& Hartson L.L.P., counsel to the Acquiror and Merger Sub, in form and substance
reasonably satisfactory to Company and its counsel.

          (f) Shareholder Approval.  Company shall have obtained approval of
              --------------------
this Agreement and the transactions contemplated hereunder by the Company
Stockholders.

          (g) Amend 401(k) Plan.  Acquiror or its affiliate shall have amended
              -----------------
its 401(k) Plan so as to permit the transfer of the existing loans which certain
Merger Employees have under the Company's 401(k) Plan.

                                  ARTICLE IX

                       TERMINATION, AMENDMENT AND WAIVER

  SECTION 9.1.  Termination.

          This Agreement may be terminated at any time prior to the Effective
Time:

          (a) by mutual written consent of Acquiror and the Company;

                                     A-47
<PAGE>


          (b) by Acquiror if (i) the Company shall have breached in any material
respect any of its representations, warranties, covenants or agreements
contained in this Agreement, or any such representation or warranty shall have
become untrue in any material respect, in any such case such that the conditions
precedent to the obligations of Acquiror to close specified in Section 8.2 will
                                                               -----------
not be satisfied and such breach has not been promptly cured within thirty (30)
days following receipt by the Company of written notice of such breach or (ii)
the closing price of the Acquiror Shares on Nasdaq is less than $11.50 as of the
day immediately preceding the Effective Time (or if such date is not a Trading
Day, the Trading Day immediately preceding such date);

          (c) by either the Company if either Acquiror or Merger Sub shall have
breached in any material respect any of its representations, warranties,
covenants or agreements contained in this Agreement, or any such representation
or warranty shall have become untrue in any material respect, in any such case
such that the conditions precedent to the obligation of the Company to close
specified in Section 8.3, will not be satisfied and such breach has not been
             -----------
promptly cured within thirty (30) days following receipt by Acquiror of written
notice of such breach;

          (d) by either Acquiror or the Company if any decree, permanent
injunction, judgment, order or other action by any court of competent
jurisdiction or any Government Entity preventing or prohibiting consummation of
the Merger shall have become final and nonappealable;

          (e) by either Acquiror or the Company if the Effective Time has not
occurred on or prior to June 30, 1999 (unless such date shall be extended by the
mutual written consent of the parties); provided, that the right to terminate
                                        --------
this Agreement under this Section 9.1(e) shall not be available to any party
                          --------------
whose breach of representations, warranties, covenants or agreements contained
in this Agreement has been the sole cause of, or resulted in, the failure of the
Effective Time to occur by such date or the inability of such condition to be
satisfied;

          (f) by Acquiror, if (i) the board of directors of the Company shall
withdraw, modify or change its recommendation of this Agreement or the Merger in
a manner adverse to Acquiror or shall have resolved to do any of the foregoing;
(ii) the board of directors of the Company shall have recommended to the Company
Stockholders (A) any merger, consolidation, share exchange, business
combination, or other similar transaction, (B) any sale, lease, exchange,
mortgage, pledge, transfer or other disposition of ten percent (10%) or more of
the assets of Company or issuance of twenty percent (20%) or more of the
outstanding voting securities of Company in a single transaction or series of
transactions; (C) any tender offer or exchange offer for twenty percent (20%) or
more of the outstanding shares of capital stock of Company; or (iii) Company
shall have entered into any agreement, commitment or understanding regarding a
Competing Transaction, or endorsed or publicly announced any proposal, plan or
intention to enter into a Competing Transaction;

          (g) by Company, if the board of directors of the Company (i) fails to
make or withdraws or modifies its recommendation referred to in Section 7.2 if
                                                                -----------
there exists at such time a tender offer or exchange offer or a Bona Fide
Proposal or (ii) recommends to the Company Stockholders approval or acceptance
of a Bona Fide Proposal, in each case only if the board of directors of the
Company, after consultation with outside legal counsel, determines in good faith
that such action is necessary for the board of directors of the Company to
comply with its fiduciary duties to the Company Stockholders under the DGCL;


                                     A-48
<PAGE>


          (h) by the Company if the Agreement shall fail to receive the
requisite vote for approval and adoption by the Company Stockholders at the
Company Stockholders' meeting called to comply with Section 7.2; or
                                                    -----------

          (i) by Acquiror, within fourteen (14) days after the date of this
Agreement, upon Acquiror's determination in its sole discretion, based on its
due diligence investigation and review of the Company, that any development has
occurred or information has been discovered that indicates a liability of the
Company not disclosed on the Financial Statements or the Schedules to this
Agreement which would reasonably be expected to exceed One Million Dollars
($1,000,000).

  SECTION 9.2.  Effect of Termination.

          If this Agreement is terminated pursuant to Section 9.1, this
                                                      -----------
Agreement shall forthwith become void and there shall be no liability or
obligation on the part of any party hereto, except that the provisions of
Sections 7.8, 9.5 and 11.11 shall not be extinguished but shall survive such
- ---------------------------
termination, and nothing herein shall relieve any party from liability for any
breach hereof and each party shall be entitled to any remedies at Law or in
equity for such breach.

  SECTION 9.3.  Amendment.

          This Agreement may not be amended except by an instrument in writing
signed by the Company, Acquiror, Merger Sub and the Stockholders'
Representative.

  SECTION 9.4.  Waiver.

          At any time prior to the Effective Time, one party may (a) extend the
time for the performance of any of the obligations or other acts of the other
party, (b) waive any inaccuracies in the representations and warranties
contained in this Agreement or in any document delivered pursuant to this
Agreement of the other party and (c) waive compliance by the other party with
any of the agreements or conditions contained in this Agreement.  Any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed on behalf of such party.

  SECTION 9.5.  Expenses.

          (a)  Subject to subsection (b) of this Section 9.5 and Section 11.11,
                                                 -----------     -------------
whether or not the Merger is consummated, all costs and expenses incurred in
connection with this Agreement and the transaction, contemplated hereby shall be
paid by the party incurring such expense.

          (b)  If this Agreement is terminated pursuant to Section 9.1(f) or (g)
                                                           --------------    ---
then the Company shall promptly pay to Acquiror a termination fee of One Million
Dollars ($1,000,000) for the reasonable fees and expenses incurred by Acquiror
in connection with this Agreement and the transactions contemplated hereby.


                                   ARTICLE X

                     SURVIVAL OF REPRESENTATIONS; REMEDIES

  SECTION 10.1.  Survival of Representations.

          All representations, warranties, covenants, indemnities and other
agreements made by any party to this Agreement herein, shall be deemed made on
and as

                                     A-49
<PAGE>


of the Effective Time as though such representations, warranties, covenants,
indemnities and other agreements were made on and as of such date, and all such
representations, warranties, covenants, indemnities and other agreements shall
survive for a period of twenty-four (24) months after the Effective Time.
Notwithstanding anything herein to the contrary, any representation, warranty,
covenant, agreement or indemnity which is the subject of a claim which is
asserted in writing prior to the expiration of the applicable period set forth
above shall survive solely with respect to such claim until the final resolution
thereof.

  SECTION 10.2.  Indemnification by the Company Stockholders.

          (a) Each Company Stockholder severally hereby agrees to indemnify,
defend and hold Acquiror, the Surviving Corporation and their respective
officers and directors, and each person, if any, who controls or may control
Acquiror or the Surviving Corporation within the meaning of the Securities Act
(all such persons hereinafter are referred to individually as an "Acquiror
                                                                  --------
Indemnified Person" and collectively as "Acquiror Indemnified Persons," but in
- ------------------                       ----------------------------
no event shall any stockholder of the Company be such an Acquiror Indemnified
Person) harmless against all Losses resulting from, imposed upon or incurred by
any Acquiror Indemnified Person, directly or indirectly, as a result of (i) any
inaccuracy or breach of a representation or warranty of the Company given or
made by the Company in this Agreement, in the certificate of merger or in the
Exhibits or Schedules hereto or in any certificate or document delivered by or
on behalf of the Company pursuant hereto, (ii) any failure by the Company to
perform or comply with any covenant or agreement contained in this Agreement, in
the certificate of merger or in the Exhibits or Schedules hereto or in any
certificate or document delivered by or on behalf of the Company pursuant
hereto, (iii) the matters set forth in Schedule 3.17 (Company's Litigation)
                                       -------------
hereto, (iv) the matters set forth in Schedule 3.19 (Taxes and Assessments)
                                      -------------
hereto, (v) the matters set forth in Schedule 3.23(b) (Compliance of Plan Terms)
                                     ----------------
or (vi) the failure of the customer to make payment in full within one hundred
twenty days of the date the goods and services were delivered by the Company
prior to the Effective Time or by Acquiror and its Subsidiaries following the
Effective Time pursuant to the contract identified in Schedule 3.6(b), item E
and F, and any obligations entered into after the Effective Time with such
customer which were contemplated in the business plan of the Company dated
January 26, 1999 delivered to Acquiror prior to the date hereof (the "Contract
Risk").  Notwithstanding anything in this Agreement to the contrary, the Company
Stockholders shall not be responsible for indemnification with respect to (w)
the first $100,000 of any Losses (other than for Identified Liabilities), (x)
the first $60,000 of Losses incurred with respect to the matters set forth in
Schedule 3.23(b), (y) the first $220,000 of any Losses incurred with respect to
- ----------------
the matter set forth in Schedule 3.19(a), item A and (z) any Loss resulting from
                        ----------------
a breach of Section 3.8 hereof to the extent that the Company Stockholders are
            -----------
responsible for such Loss pursuant to clause (vi) of this Section 10.2.  Any
                                                          ------------
payment for indemnification under this Section 10.2 shall be made from the
                                       ------------
Escrow Stock.

          (b) Anything to the contrary in this Agreement notwithstanding,

               (i)   the maximum aggregate amount for which the Company
                     Stockholders may be liable to the Acquiror Indemnified
                     Persons or any other person pursuant to or in connection to
                     this Agreement or the transactions contemplated hereby
                     shall not exceed an amount equal to the Stockholder's
                     Percentage multiplied by $5,000,000;

                                      A-50
<PAGE>


               (ii)  the maximum amount for which any one Company Stockholder
                     may be liable to the Acquiror Indemnified Persons or any
                     other person pursuant to or in connection to this Agreement
                     or the transactions contemplated hereby shall not, with
                     respect to any Loss, exceed a percentage of such Loss
                     determined by dividing the number of shares of Company
                     Common Stock held by such Company Stockholder immediately
                     prior to the Effective Time by the Total Converted Company
                     Stock;

               (iii)  subsequent to the Effective Time, the indemnification
                      rights provided in this Section 10.2 shall be the sole and
                                              ------------
                      exclusive remedy available under contract, tort or any
                      other legal theory to any Acquiror Indemnified Person or
                      any other person with respect to any Loss incurred or
                      sustained pursuant to or in connection with this Agreement
                      or the transactions contemplated hereby; and the only
                      source of indemnification or payment for or with respect
                      to any such Loss shall be recourse to the Escrow Stock.


          (c) Any payment to be made to an Acquiror Indemnified Person from
Escrow Stock shall be made by delivering to the Acquiror Indemnified Persons
such number of shares of the Escrow Stock as shall equal the amount of the Loss
or Losses for which indemnification or payment is being made.  Any payment to be
made to an Acquiror Indemnified person by a Company Stockholder under Section
                                                                      -------
10.2 may be made in cash or, in whole or in part, in Acquiror Shares, having a
- ----
value per share equal to the average daily price thereof on the NASDAQ for the
five (5) consecutive Trading Days preceding the date of such payment.

          (d) In the event that an Acquiror Indemnified Person receives payment
with respect to a Loss pursuant to this Section 10.2, and such Acquiror
                                        ------------
Indemnified Person subsequently recovers the amount of such Loss from a third
party then such Acquiror Indemnified Person shall pay such recovery to the
Company Stockholders as soon as reasonably practicable.

  SECTION 10.3.  Third Party Claims.

          The obligations and liabilities of the parties hereto with respect to
their respective indemnities pursuant to this Article X, resulting from any
                                              ---------
Third Party Claim shall be subject to the following terms and conditions:

          (a) The party seeking indemnification (the "Indemnified Party") must
                                                      -----------------
give the other party (the "Indemnifying Party"), notice of any Third Party Claim
                           ------------------
which is asserted against, resulting to, imposed upon or incurred by the
Indemnified Party and which may give rise to liability of the Indemnifying Party
pursuant to this Article X, stating (to the extent known or reasonably
                 ---------
anticipated) the nature and basis of such Third Party Claim and the amount
thereof; provided that the failure to give such notice shall not affect the
         --------
rights of the Indemnified Party hereunder except to the extent (i) that the
Indemnifying Party shall have suffered actual damage by reason of such failure,
or (ii) such failure or delay materially adversely affects the ability of the
Indemnifying Party to defend, settle or compromise such Third Party Claim.

          (b) Subject to Section 10.3(c) below, if the Indemnifying Party
                         ---------------
assumes responsibility for Losses arising out of such Third Party Claim, then
the Indemnifying

                                      A-51
<PAGE>


Party shall have the right to undertake, by counsel or other representatives of
its own choosing, the defense of such Third Party Claim at the Indemnifying
Party's risk and expense.

          (c) In the event that (i) the Indemnifying Party shall elect not to
undertake such defense, (ii) within a reasonable time after notice from the
Indemnified Party of any such Third Party Claim, the Indemnifying Party shall
fail to undertake to defend such Third Party Claim, (iii) there is a reasonable
probability that such Third Party Claim may materially and adversely affect the
Indemnified Party other than as a result of money damages or other money
payments, or (iv) there is a reasonable probability that the amount of Losses
asserted under such Third Party Claim may exceed the Indemnifying Party's
obligations under this Article X, then the Indemnified Party (upon further
                       ---------
written notice to the Indemnifying Party) shall have the right to undertake the
defense, compromise or settlement of such Third Party Claim, by counsel or other
representatives of its own choosing, on behalf of and for the account and risk
of the Indemnifying Party.  In the event that the Indemnified Party undertakes
the defense of a Third Party Claim under this Section 10.3(c), the Indemnifying
                                              ---------------
Party shall pay to the Indemnified Party, in addition to the other sums required
to be paid hereunder, the reasonable costs and expenses incurred by the
Indemnified Party in connection with such defense, compromise or settlement as
and when such costs and expenses are so incurred.

          (d) Anything in this Section 10.3 to the contrary notwithstanding, (i)
                               ------------
neither Party shall, without the other party's written consent (which consent
shall not be unreasonably withheld or delayed), settle or compromise such Third
Party Claim or consent to entry of any judgment which does not include as an
unconditional term thereof the giving by the claimant or the plaintiff to the
Indemnified Party of a release from all liability in respect of such Third Party
Claim in form and substance satisfactory to the Indemnified Party; (ii) in the
event that a party hereto undertakes defense of such Third Party Claim in
accordance with this Section 10.3, the other parties, by counsel or other
                     ------------
representative of their own choosing and at their sole cost and expense, shall
have the right to participate in the defense, compromise or settlement thereof
and each party and its counsel and other representatives shall cooperate with
the other party and its counsel and representatives in connection therewith; and
(iii) the party that undertakes the defense of such Third Party Claim in
accordance with this Section 10.3 shall have an obligation to keep the other
                     ------------
parties informed of the status of the defense of such Third Party Claim and
furnish the other parties with all documents, instruments and information that
the other parties shall reasonably request in connection therewith; provided,
                                                                    --------
however, Acquiror shall have the absolute right to settle or compromise any
- -------
Sales Tax Matter relating to sales previously made to the customer identified in
item E and F of Schedule 3.6(b) after the eighteenth month from the date hereof.
                ---------------


          (e) Anything in this Section 10.3 to the contrary notwithstanding, the
                               ------------
Stockholder's Representative on behalf of the Company Common Stockholders shall
be permitted to negotiate, settle or compromise or otherwise dispose of any
Third Party Claim that relates to an Identified Liability (other than the Sales
Tax Matter relating to sales previously made to the customer identified in item
E and F of Schedule 3.6(b) after the eighteenth month from the date hereof);
           ---------------
provided, however, the Losses for all such matters do not exceed the fair market
- --------  -------
value of the Escrow Stock then held by the Escrow Agent.  The reasonable
expenses necessary to settle the Third Party Claims and Identified Liabilities
which are incurred after the Effective Time shall include the reasonable
expenses of the Stockholder's Representative and his or her accountant and legal
counsel in resolving such claims, which such expenses shall initially be paid by
the Surviving Corporation and then reimbursed to the Surviving Corporation by
the Escrow Agent from the Escrow Stock.

                                      A-52
<PAGE>


          (f) The parties acknowledge the existence of certain potential
liabilities relating to the Sales Tax Matters.  The parties further agree that
Acquiror shall have the absolute right to resolve such issues with the
respective customer and/or governmental entities relating to sales previously
made to the customer identified in item E and F of Schedule 3.6(b) after the
                                                   ---------------
eighteenth month from the date hereof and that Acquiror shall be entitled to
indemnification with respect to any Losses resulting from or arising out of the
foregoing.

  SECTION 10.4.  [OMITTED]


  SECTION 10.5.  Subrogation

          Each Company Stockholder hereby irrevocably waives any and all rights
to recourse against Company with respect to any representation, warranty,
indemnity or other agreement or action made or taken by or pursuant to this
Agreement.  No Company Stockholder shall be entitled to any contribution from,
subrogation to or recovery against the Company with respect to any liability of
such Company Stockholder that may arise under or pursuant to this Agreement or
the transactions contemplated hereby.

  SECTION 10.6.  Remedies Cumulative

          Subject to the limitations and qualifications set forth in this

Article X, the remedies provided herein shall be cumulative and shall not
- ---------
preclude the assertion by the parties hereto of any other rights or the seeking
of any other remedies against the other parties, or their respective successors
or assigns.

                                   ARTICLE XI


                               GENERAL PROVISIONS

  SECTION 11.1.  Notices.

          All notices, demands, requests, or other communications which may be
or are required to be given, served, or sent by any party to any other party
pursuant to this Agreement shall be in writing and shall be hand delivered, sent
by overnight courier or mailed by first-class, registered or certified mail,
return receipt requested, postage prepaid, or transmitted by telegram, telecopy
or telex, addressed as follows:

          (a)  If to Acquiror:

          ITC/\DeltaCom, Inc.
          1241 O.G. Skinner Drive
          West Point, Georgia 31833
          Telecopier No.:  (706) 645-8989
          Attention:  Mr. Douglas A. Shumate

                                      A-53
<PAGE>


          With a copy (which shall not constitute notice) to:

          ITC/\DeltaCom, Inc.
          700 Boulevard South
          Suite 101
          Huntsville, Alabama 35802
          Telecopier No.:  (256) 650-3936
          Attention:  J. Thomas Mullis, Esq.
                    General Counsel



          With a copy (which shall not constitute notice) to:

          Hogan & Hartson L.L.P.
          8300 Greensboro Drive
          Suite 1100
          McLean, Virginia  22102
          Telecopier No.:  (703) 610-6200
          Attention:  Richard K.A. Becker, Esq.

     (b)  If to the Company:

          AvData Systems, Inc.
          55 Marietta Street
          Atlanta, Georgia 30303
          Telecopier No.:  (404) 479-4501
          Attention:  James H. Black, Jr.

          With a copy (which shall not constitute notice) to:

          Sutherland, Asbill & Brennan L.L.P.
          999 Peachtree Street, NE
          Atlanta, Georgia  30309
          Telecopier No.:  (404)  853-8806
          Attention:  Charles D. Ganz, Esq.

     (c)  If to the Stockholders' Representative:

          Kenneth F. Leddick
          6085 Barfield Road, Suite 122
          Atlanta, GA 30328
          Telecopier No.:  (404) 257-3341

     Each party may designate by notice in writing a new address to which any
notice, demand, request or communication may thereafter be so given, served or
sent. Each notice, demand, request, or communication which shall be hand
delivered, sent, mailed, telecopied or telexed in the manner described above, or
which shall be delivered to a telegraph company, shall be deemed sufficiently
given, served, sent, received or delivered for all purposes at such time as it
is delivered to the addressee (with the return receipt, the delivery receipt, or
(with respect to a telecopy or telex) the answerback being deemed conclusive,
but not exclusive, evidence of such delivery) or at such time as delivery is
refused by the addressee upon presentation.

                                      A-54
<PAGE>


  SECTION 11.2.  Certain Definitions.

          For purposes of this Agreement, the term:

          (a)  "Acquiror Material Adverse Effect" means any material adverse
                --------------------------------
effect on the Assets or the business, financial condition or results of
operations of Acquiror.

          (b)  "affiliate" means a person that directly or indirectly, through
                ---------
one or more intermediaries, controls, is controlled by, or is under common
control with, the first mentioned person.

          (c)  "Assets" shall mean the assets, rights and properties, whether
                ------
owned, leased or licensed, real, personal or mixed, tangible or intangible, that
are used, useful or held for use in connection with the business of an entity.


          (d)  "business day" shall mean any day other than a day on which
                ------------
banks in the City of New York are authorized or obligated to be closed.

          (e)  "Communications Act" shall mean the Communications Act of 1934,
                ------------------
as amended, and all Laws promulgated pursuant thereto or in connection
therewith.

          (f)  "Company Material Adverse Effect" means any material adverse
                -------------------------------
effect on the Assets or the business, financial condition or results of
operations of the Company.

          (g)  "Company Software" means the software developed by employees,
                ----------------
consultants, and independent contractors of the Company which is provided by the
Company to the Company's customers and/or is for the Company's internal use,
including any documentation relating to such software.

          (h)  "Company Stockholders" means the holders of Company Common Stock.
                --------------------


          (i)  "control" (including the terms "controlled by" and "under
                -------                        -------------       -----
common control with") means the possession, directly or indirectly or as
- -------------- ----
trustee or executor, of the power to direct or cause the direction of the
management or policies of a person, whether through the ownership of stock or as
trustee or executor, by contract or credit arrangement or otherwise.

          (j)  "Encumbrances" means mortgages, liens, pledges, encumbrances,
                ------------
security interests, deeds of trust, options, encroachments, reservations,
orders, decrees, judgments, restrictions, charges, contract rights, claims
or equity of any kind.

          (k)  "FCC" means the United States Federal Communications Commission
                ---
and its successors.

          (l)  "Government Entity" means any United States or other national,
                -----------------
state, municipal or local government, domestic or foreign, any subdivision,
agency, entity, commission or authority thereof, or any quasi-governmental or
private body exercising any regulatory, taxing, importing or other governmental
or quasi-governmental authority.

                                      A-55
<PAGE>


          (m)  "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements
                -------
Act of 1976, as amended, and all Laws promulgated pursuant thereto or in
connection therewith.

          (n)  "Identified Liabilities" means, collectively, (i) the state
                ----------------------
sales and use taxes identified on Schedule 3.19, item I (the "Sales Tax
                                  -------------
Matter"), (ii) the matters identified on Schedule 3.23(b), and (iii) and the
                                         ----------------
Contract Risk.

          (o)  "Intellectual Property" means all inventions, improvements
                ---------------------
thereto, patents, patent applications, patent disclosures, trademarks, service
marks, trade dress, logos, trade names, and corporate names, domain names,
copyrights, maskworks, moral rights, know-how, computer software, formulas,
compositions, manufacturing and production processes and techniques, technical
data, designs, drawings, specifications, customer and supplier lists, business
and marketing plans and proposals, and general intangibles of a like nature,
trade secrets, licenses, and rights and filings with respect to the foregoing,
and all reissues, extensions and renewals thereof of the Company.

          (p)  "Knowledge" of any person (including references to the best of
                ---------
any person's knowledge) shall refer to actual knowledge of such person at the
time of determination, or the knowledge which such person, in the normal
exercise of his relevant functions and duties, would reasonably be expected to
have, and, with respect to any corporation, shall mean only such actual
knowledge possessed at such time by the Chairman, the President, the chief
financial officer and any other executive officer, or director level employee,
or the knowledge which such person, in the normal exercise of his relevant
functions and duties, would reasonably be expected to have.

          (q)  "Laws" means all foreign, federal, state and local Laws,
                ----
statutes, regulations and rules applicable to the specified person or entity,
and all resolutions, orders, determinations, writs, injunctions, awards
(including, without limitation, awards of any arbitrator), judgments and decrees
applicable to the specified persons or entities.

          (r)  "Licenses" means any franchise, grant, authorization, license,
                --------
tariff, permit, exemption, consent, certificate, approval or order of any
Government Entity.

          (s)  "Losses" means all demands, losses, claims, actions or causes
                ------
of action, assessments, damages, liabilities, costs and expenses, including,
without limitation, interest, penalties and reasonable attorneys' fees and
disbursements.

          (t)  "person" means an individual, corporation, partnership,
                ------
association, trust, unincorporated organization, other entity or group (as
defined in Section 13(d) of the Exchange Act).

          (u)  "SEC" means the United States Securities and Exchange Commission.
                ---


          (v)  "Stockholders' Percentage" means a fraction, the numerator of
                ------------------------
which shall be the number of shares of Company Common Stock (other than treasury
stock) issued and outstanding immediately prior to the Effective Time and the
denominator of which shall be the Total Converted Company Stock.

          (w)  "Subsidiary" means any corporation, partnership, joint venture
                ----------
or other legal entity of which such person (either alone or through or together
with any other Subsidiary) (i) owns, directly or indirectly, fifty percent (50%)
or more of the stock, partnership interests or other equity interests the
holders of which are generally

                                      A-56
<PAGE>


entitled to vote for the election of the board of directors or other governing
body of such corporation, partnership, joint venture or other legal entity; or
(ii) possesses, directly or indirectly, control over the direction of management
or policies of such corporation, partnership, joint venture or other legal
entity (whether through ownership of voting securities, by agreement or
otherwise).

          (x)  "Taxes" shall mean all federal, state, local and foreign taxes
                -----
(including income, profit, franchise, sales, use, real property, personal
property, ad valorem, excise, employment, social security and wage withholding
taxes) and installments of estimated taxes, assessments, deficiencies, levies,
imports, duties, license fees, registration fees, withholdings or other similar
charges of every kind, character or description imposed by any governmental
authorities, and any interest, penalties or additions to tax imposed thereon or
in connection therewith.

          (y)  "Third Party Claim" means any claim or other assertion of
                -----------------
liability by any third party.

  SECTION 11.3.  Headings.

          The headings contained in this Agreement are for reference purposes
only and shall not affect in any way the meaning or interpretation of this
Agreement.

  SECTION 11.4.  Severability.

          If any term or other provision of this Agreement is invalid, illegal
or incapable of being enforced by any rule of Law or public policy, all other
conditions and provisions of this Agreement shall nevertheless remain in full
force and effect so long as the economic or legal substance of the transactions
contemplated hereby is not affected in any manner materially adverse to any
party.  Upon such determination that any term or other provision is invalid,
illegal or incapable of being enforced, the parties hereto 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 to the end that
transactions contemplated hereby are fulfilled to the extent possible.

  SECTION 11.5.  Entire Agreement.

          This Agreement (together with the Exhibits, the Schedules and the
other documents delivered pursuant hereto), together with the Confidentiality
Agreement, constitutes the entire agreement of the parties and supersede all
prior agreements and undertakings, both written and oral, between the parties,
or any of them, with respect to the subject matter hereof and, except as
otherwise expressly provided herein, are not intended to confer upon any other
person any rights or remedies hereunder.

  SECTION 11.6.  Specific Performance.

          The transactions contemplated by this Agreement are unique.
Accordingly, each of the parties acknowledges and agrees that, in addition to
all other remedies to which it may be entitled, each of the parties hereto is
entitled to a decree of specific performance, provided such party is not in
material default hereunder.

  SECTION 11.7.  Assignment.

          Neither this Agreement nor any of the rights, interests or obligations
hereunder shall be assigned by any of the parties hereto (whether by operation
of Law or otherwise) without the prior written consent of the other parties;

provided, however, that Acquiror and Merger Sub shall have the right to assign
- --------  -------
this Agreement without the prior

                                      A-57
<PAGE>


written consent of the Company to a direct or indirect subsidiary of Acquiror,
but no such assignment shall relieve Acquiror or Merger Sub, as the case may be,
of its obligations hereunder. Subject to the preceding sentence, this Agreement
shall be binding upon, inure to the benefit of and be enforceable by the parties
and their respective successors and assigns.

  SECTION 11.8.  Third Party Beneficiaries.

          This Agreement shall be binding upon and inure solely to the benefit
of each party hereto, and nothing in this Agreement, express or implied, is
intended to or shall confer upon any other person any right, benefit or remedy
of any nature whatsoever under or by reason of this Agreement.

  SECTION 11.9.  Governing Law.

          This Agreement shall be governed by, and construed in accordance with,
the Laws of the State of Delaware, regardless of the Laws that might otherwise
govern under applicable principles of conflicts of law.

  SECTION 11.10.  Counterparts.

          This Agreement may be executed and delivered in one or more
counterparts, and by the different parties hereto in separate counterparts, each
of which when executed and delivered shall be deemed to be an original but all
of which taken together shall constitute one and the same agreement.

  SECTION 11.11.  Fees and Expenses.

          Except as otherwise provided for in this Agreement, each party hereto
shall pay its own fees, costs and expenses incurred in connection with this
Agreement and in the preparation for and consummation of the transactions
provided for herein, but in no event shall such fees and expenses (including
without limitation the fees and expenses described in Schedule 3.26) incurred by
                                                      -------------
or on behalf of the Company exceed $500,000.

                                      A-58
<PAGE>


          IN WITNESS WHEREOF, the parties hereto have caused this AGREEMENT AND
PLAN OF MERGER to be executed and delivered as of the date first written above.


                                    ITC/\DELTACOM, INC.



                                    By: ____________________
                                     Andrew M. Walker,
                                     Vice Chairman and Chief
                                     Executive Officer


                                    INTERSTATE FIBERNET, INC.



                                    By: ____________________
                                     Andrew M. Walker,
                                     Director and Chief Executive
                                     Officer


                                    AVDATA SYSTEMS, INC.



                                    By: ____________________
                                     James H. Black, Jr.,
                                     Chief Executive Officer




          The undersigned hereby acknowledges his appointment as the
Stockholders' Representative and his willingness to fulfill the duties of the
Stockholders' Representative as contemplated by this Agreement.



                                    ____________________
                                    Kenneth F. Leddick

                                      A-59
<PAGE>


                          FIRST AMENDMENT TO AGREEMENT
                               AND PLAN OF MERGER


          THIS FIRST AMENDMENT TO AGREEMENT AND PLAN OF MERGER (this "First
                                                                      -----
Amendment") is entered into this 3rd day of June, 1999, by and among
- ---------
ITC/\DELTACOM, INC., a Delaware corporation ("Acquiror"), INTERSTATE FIBERNET,
                                             ---------
INC., a Delaware corporation and a wholly-owned subsidiary of Acquiror ("Merger
                                                                         ------
Sub"), AVDATA SYSTEMS, INC., a Delaware corporation (the "Company"), and the
- ---                                                       -------
Stockholders' Representative.

          WHEREAS, the parties hereto desire to amend the Agreement and Plan of
Merger by and among them dated as of April 15, 1999 (the "Merger Agreement") in
certain respects and to extend the date by which the Merger Agreement may be
terminated.

          NOW, THEREFORE, in consideration of the foregoing and the respective
covenants and agreements set forth in this First Amendment, the parties hereto
agree as follows:

          1.  Definitions.  Capitalized terms used herein and not defined shall
have the meanings ascribed to such terms in the Merger Agreement.

          2.  Definition of Total Converted Company Stock.  The definition of
"Total Converted Company Stock" contained in Section 2.1(a) of the Merger
                                             --------------
Agreement is hereby deleted and replaced in its entirety with the following:


               "Total Converted Company Stock" shall mean the sum of (i) the
                -----------------------------
          number of shares of Company Common Stock (other than treasury stock)
          issued and outstanding immediately prior to the Effective Time and
          (ii) the result of (A) the number of shares of Company Common Stock
          issuable at any time pursuant to the Company Stock Options exchanged
          pursuant to Section 2.7 which are vested immediately prior to the
                      -----------
          Effective Time minus (B) the number of shares of Company Common Stock
                         -----
          which have a fair market value at the Effective Time equal to the
          aggregate consideration which would have been received by the Company
          if the options described in clause (A) were exercised immediately
          prior to the Effective Time.  For purposes of (ii)(B) above, the fair
          market value of each share of the Company Common Stock shall be deemed
          to be equal to the quotient obtained by dividing (i) the sum of (1)
          the amount of cash which would have been received by the Company if
          the options described in clause (A) of the immediately preceding
          sentence were exercised immediately prior to the Effective Time and
          (2)(I) if the Average Daily Price of the Acquiror Shares is between
          $25.00 and $31.39 for the five consecutive trading days immediately
          preceding the Effective Time, $28,600,000, (II) if such Average Daily
          Price is below $25.00, the result of 1,144,000 multiplied by such
          Average Daily Price, or (III) if such Average Daily Price is above
          $31.39, the result of 911,118 multiplied by such Average Daily Price
          by (ii) the sum of (A) the number of shares of Company Common Stock
          (other than treasury stock) issued and outstanding immediately prior
          to the Effective Time and (B) the number of shares of Company Common
          Stock issuable at any time pursuant to the Company Stock Options
          exchanged pursuant to Section 2.7 which are vested immediately prior
                                -----------
          to the Effective Time.

                                      A-60
<PAGE>


          3.  Definition of Fully Diluted Company Stock.  The definition of
"Fully Diluted Company Stock" contained in Section 2.7(a) of the Merger
                                           --------------
Agreement is hereby deleted and replaced in its entirety with the following:


               "Fully Diluted Company Stock" shall mean the sum of (i) the
                ---------------------------
          number of shares of Company Common Stock (other than treasury stock)
          issued and outstanding immediately prior to the Effective Time and
          (ii) the number of shares of Company Common Stock issuable at any time
          pursuant to the Company Stock Options exchanged pursuant to this

          Section 2.7 whether or not such options are vested immediately prior
          -----------
          to the Effective Time.

          4.  Section 2.8.

          Section 2.8 of the Merger Agreement is hereby deleted and replaced in
          -----------
its entirety with the following:

          (a) Subject to the terms of this Section 2.8, the Company Stockholders
                                           -----------
shall have a contingent right to received from Acquiror an aggregate number of
Acquiror Shares (the "Earnout Shares") as determined in accordance with this
                      --------------
Section 2.8.  Each share of Company Common Stock shall be entitled to receive a
- -----------
number of Earnout Shares equal to (i) the quotient obtained by dividing the
Earnout Per Share Price (as defined below) by the Determination Price minus (ii)
the number of Acquiror Shares received in respect of such share of Company
Common Stock by the holder of such share of Company Common Stock pursuant to

Sections 2.1 and 2.4 (including without limitation all Acquiror Shares placed in
- ------------     ---
escrow pursuant to Section 2.3 in respect of such share of Company Common Stock
                   -----------
and all fractional Acquiror Shares converted into cash pursuant to Section
                                                                   -------
2.1(c)).  The contingent right to receive Earnout Shares is personal to each
- -------
Company Stockholder and shall not be transferable.

          (b) Subject to the terms of this Section 2.8, delivery of the Earnout
                                           -----------
Shares due pursuant to this Section 2.8 shall be made at a closing (the "Earnout
                            -----------                                  -------
Closing") to be held on a date, agreed in writing between the Stockholder
- -------
Representative and the Acquiror, on or prior to March 15, 2000.  At the Earnout
Closing, Acquiror shall deliver to each Company Stockholder the number of
Earnout Shares to which such Company Stockholder is entitled.

          (c) The Earnout Amount shall be determined by the Acquiror's auditors
promptly following the end of calendar year 1999.  Thirty (30) days prior to the
Earnout Closing, Acquiror shall deliver, or cause to be delivered to the
Stockholder's Representative, the calculation of the Earnout Amount.  The
Stockholder's Representative shall have an opportunity to review such
determination and object to the calculations made.  If an agreement by the
parties is not reached regarding such calculation, the parties shall select a
mutually agreed-upon nationally recognized accounting firm to compute the
Earnout Amount, whose calculation of the Earnout Amount shall be final and
binding on the parties.  In the event that the parties cannot agree upon a
nationally recognized accounting firm within fifteen (15) days prior to the
Earnout Closing, either party may apply to the Atlanta office of the American
Arbitration Association to determine such nationally recognized accounting firm
(which shall be a firm which is not regularly employed by Acquiror and was not
regularly employed by the Company).   The decision of the Atlanta office of the
American Arbitration Association shall be final and binding on the parties.  The
expenses for the independent accounting firm shall be shared equally by the
Company Stockholders, on the one hand, and the Acquiror, on the other hand.


                                      A-61
<PAGE>


          (d) The "Earnout Amount" shall equal the sum of the Direct Recurring
Revenue Earnout Amount, Non-Recurring Revenue Earnout Amount, and VSAT Customer
Revenue Earnout Amount as follows:

              (i)  Direct Recurring Revenue.
                   ------------------------

                   (A)  If the Direct Recurring Revenue equals or exceeds
$322,373 but is less than $347,089, the Direct Recurring Revenue Earnout Amount
shall be an amount equal to the product of (1) $2,850,000 and (2) a fraction,
the numerator of which shall be the result of subtracting $322,373 from the
Direct Recurring Revenue and the denominator of which shall be $24,716. There
shall be no Direct Recurring Revenue Earnout Amount if the Direct Recurring
Revenue does not equal or exceed $322,373.

                   (B)  If the Direct Recurring Revenue equals or exceeds
$347,089 but is less than $404,759, the Direct Recurring Revenue Earnout Amount
shall be $2,850,000 plus an amount equal to the product of (1) $2,850,000 and
(2) a fraction, the numerator of which shall be the result of subtracting
$347,089 from the Direct Recurring Revenue and the denominator of which shall be
$57,670.

                   (C)  If the Direct Recurring Revenue equals or exceeds
$404,759 but is less than $487,145, the Direct Recurring Revenue Earnout Amount
shall be $5,700,000 plus an amount equal to the product of (1) $3,600,000 and
(2) a fraction, the numerator of which shall be the result of subtracting
$404,759 from the Direct Recurring Revenue and the denominator of which shall be
$82,386.

                   (D)  If the Direct Recurring Revenue equals or exceeds
$487,145, the Direct Recurring Revenue Earnout Amount shall be $9,300,000.

              (ii) Non-Recurring Revenue.  If Non-Recurring Revenue equals or
                   ----------------------
exceeds $7,700,000, the Non-Recurring Revenue Earnout Amount shall be  $350,000.
There shall be no Non-Recurring Earnout Amount if the Non-Recurring Revenue is
less than $7,700,000.

              (iii)  VSAT Customer Revenue.  If the VSAT Customer Revenue for
                     ----------------------
the month of December 1999 equals or exceeds $684,705, the VSAT Customer Revenue
Earnout Amount shall be  $350,000.  There shall be no VSAT Customer Revenue
Earnout Amount if the VSAT Customer Revenue for the month of December 1999 is
less than $684,705.

          (f) Definitions.  For purposes of this Article II:
                                                 ----------

              (i) "Direct Recurring Revenue" shall mean the following: for the
                   ------------------------
month of December, 1999 revenues derived from (A) the Company's terrestrial
recurring revenue base as of the Effective Time, (B) all new sales made by
Company sales professionals of Acquiror's recurring revenue products, including
without limitation, local, long-distance, frame-relay, point-to-point data
circuits, Internet access and other new recurring revenue products which
Acquiror makes available, if any, prior to the end of 1999 and (C) all new sales
made by Company sales professionals of the Company's recurring revenue products,
with the exception of VSAT products. In the event that the Direct Recurring
Revenue does not equal or exceed $487,145, there shall be added to the Direct
Recurring Revenue for purposes of calculating the Direct Recurring Revenue
Earnout Amount an amount (not to exceed $32,954) equal to the amount by which
the New Recurring Channel Sales for the month of December 1999 exceed the
budgeted New Recurring Channel Sales of $125,985 for the month of December 1999.
For purposes of

                                      A-62
<PAGE>


calculating the Direct Recurring Revenue, if a customer using a VSAT product is
converted to a recurring revenue terrestrial product during 1999, and as a
result the total recurring revenue from such customer for December 1999 exceeds
the VSAT product revenue for December 1999 reasonably expected from such
customer, an amount equal to the excess shall be added to the Direct Recurring
Revenue.

          (ii) "Earnout Per Share Price" shall mean the quotient obtained by
                -----------------------
dividing the Total Consideration by the Earnout Converted Company Stock.

          (iii)  "New Recurring Channel Sales" shall mean the amount of sales of
                  ---------------------------
new recurring revenue products by third party distribution channels (other than
Acquiror) established from time to time.

          (iv) "Non-Recurring Revenue" shall mean the following: for calendar
                ---------------------
year 1999 all revenue derived from non-recurring revenue products sold by
Company sales professionals.

          (v) "VSAT Customer Revenue" shall mean the following: for the month of
               ---------------------
December 1999 revenues derived from (A) the Company's VSAT recurring revenue
base as of the Effective Time, and (B) all new sales made by Company sales
professionals of the Company's VSAT recurring revenue products.  For purposes of
calculating the VSAT Customer Revenue, if a customer using a VSAT product is
converted to a recurring revenue terrestrial product during 1999 and, as a
result, reduces its use of the VSAT product which it previously used, an amount
equal to the revenue shortfall with respect to such VSAT product reasonably
attributable to such customer's conversion to the terrestrial product shall be
added to the VSAT Customer Revenue.

               (vi) "Company" shall mean the Company and any successor
                     -------
corporation.

          (vii)  "Earnout Converted Company Stock" shall mean the sum of (i) the
                  -------------------------------
number of shares of Company Common Stock (other than treasury stock) issued and
outstanding immediately prior to the Effective Time and (ii) the result of (A)
the number of shares of Company Common Stock issuable at any time pursuant to
the Company Stock Options exchanged pursuant to Section 2.7 which are vested
                                                -----------
immediately prior to the Effective Time minus (B) the number of shares of
                                        -----
Company Common Stock which have a fair market value equal to the aggregate
consideration which would have been received by the Company if such options were
exercised immediately prior to the Effective Time.  For purposes of (ii)(B)
above, the fair market value of each share of Company Common Stock shall be
deemed to be equal to the quotient obtained by dividing (i) the sum of (1) the
amount of cash which would have been received by the Company if the options
described in clause (A) of the immediately preceding sentence were exercised
immediately prior to the Effective Time and (2)(I) if the Average Daily Price of
the Acquiror Shares is between $25.00 and $31.39 for the five consecutive
trading days immediately preceding the Effective Time, $28,600,000, (II) if such
Average Daily Price is below $25.00, the result of 1,144,000 multiplied by such
Average Daily Price, or (III) if such Average Daily Price is above $31.39, the
result of 911,118 multiplied by such Average Daily Price and (3) the Earnout
Amount by (ii) the sum of (A) the number of shares of Company Common Stock
(other than treasury stock) issued and outstanding immediately prior to the
Effective Time and (B) the number of shares of Company Common Stock issuable at
any time pursuant to the Company Stock Options exchanged pursuant to Section 2.7
                                                                     -----------
which are vested immediately prior to the Effective Time.

                                      A-63
<PAGE>


          (viii)  "Total Consideration" shall mean the sum of the Initial
                   -------------------
Consideration and the Earnout Amount.

          5.  Cold Comfort Letter.  Acquiror hereby waives the requirement
contained in Section 8.2(h) of the Merger Agreement that the Company obtain a
             --------------
"cold comfort" letter from Arthur Andersen LLP as a condition to Closing.

          6.  Date of Termination.  Section 9.1(e) of the Merger Agreement is
                                    --------------
hereby deleted and replaced in its entirety with the following:

               (e) by either Acquiror or the Company if the Effective Time has
          not occurred on or prior to August 31, 1999 (unless such date shall be
          extended by the mutual written consent of the parties); provided, that
                                                                  --------
          the right to terminate this Agreement under this Section 9.1(e) shall
                                                           --------------
          not be available to any party whose breach of representations,
          warranties, covenants or agreements contained in this Agreement has
          been the sole cause of, or resulted in, the failure of the Effective
          Time to occur by such date or the inability of such condition to be
          satisfied;

          7.  Continued Effect.  Except as expressly amended by this First
Amendment, all of the terms and conditions of the Merger Agreement are hereby
ratified and confirmed and shall continue in full force and effect.

          8.  Counterparts.  To facilitate execution, this First Amendment may
be executed in counterparts, and all counterparts shall collectively constitute
a single agreement.


        [The remainder of this page has been intentionally left blank.]



                                      A-64
<PAGE>


          IN WITNESS WHEREOF, the parties hereto have caused this FIRST
AMENDMENT to be executed and delivered as of the date first written above.

                                    ITC/\DELTACOM, INC.



                                    By: _____________________
                                        Andrew M. Walker,
                                        Vice Chairman and Chief
                                        Executive Officer


                                    INTERSTATE FIBERNET, INC.



                                    By: _____________________
                                        Andrew M. Walker,
                                        Director and Chief Executive
                                        Officer


                                    AVDATA SYSTEMS, INC.



                                    By: _____________________
                                        James H. Black, Jr.,
                                        Chairman and Chief Executive
                                        Officer



                                    Stockholders' Representative:


                 ______________________
                 Kenneth F. Leddick

                                      A-65
<PAGE>

                                  APPENDIX B

                          SECTION 262 OF THE DELAWARE
                            GENERAL CORPORATION LAW

     262  APPRAISAL RIGHTS - (a) Any stockholder of a corporation of this State
who holds shares of stock on the date of the making of a demand pursuant to
subsection (d) of this section with respect to such shares, who continuously
holds such shares through the effective date of the merger or consolidation, who
has otherwise complied with subsection (d) of this section and who has neither
voted in favor of the merger or consolidation nor consented thereto in writing
pursuant to 228 of this title shall be entitled to an appraisal by the Court of
Chancery of the fair value of the stockholder's shares of stock under the
circumstances described in subsections (b) and (c) of this section.  As used in
this section, the word "stockholder" means a holder of record of stock in a
stock corporation and also a member of record of a nonstock corporation; the
words "stock" and "share" mean and include what is ordinarily meant by those
words and also membership or membership interest of a member of a nonstock
corporation; and the words "depository receipt" mean a receipt or other
instrument issued by a depository representing an interest in one or more
shares, or fractions thereof, solely of stock of a corporation, which stock is
deposited with the depository.

     (b) Appraisal rights shall be available for the shares of any class or
series of stock of a constituent corporation in a merger or consolidation to be
effected pursuant to 251 (other than a merger effected pursuant to 251(g) of
this title), 252, 254, 257, 258, 263 or 264 of this title:

     (1) Provided, however, that no appraisal rights under this section shall be
available for the shares of any class or series of stock, which stock, or
depository receipts in respect thereof, at the record date fixed to determine
the stockholders entitled to receive notice of and to vote at the meeting of
stockholders to act upon the agreement of merger or consolidation, were either
(i) listed on a national securities exchange or designated as a national market
system security on an interdealer quotation system by the National Association
of Securities Dealers, Inc. or (ii) held of record by more than 2,000 holders;
and further provided that no appraisal rights shall be available for any shares
of stock of the constituent corporation surviving a merger if the merger did not
require for its approval the vote of the stockholders of the surviving
corporation as provided in subsection (f) of 251 of this title.

     (2) Notwithstanding paragraph (1) of this subsection, appraisal rights
under this section shall be available for the shares of any class or series of
stock of a constituent corporation if the holders thereof are required by the
terms of an agreement of merger or consolidation pursuant to 251, 252, 254, 257,
258, 263 and 264 of this title to accept for such stock anything except:

     a.   Shares of stock of the corporation surviving or resulting from such
merger or consolidation, or depository receipts in respect thereof;

     b.   Shares of stock of any other corporation, or depository receipts in
respect thereof, which shares of stock (or depository receipts in respect
thereof) or depository receipts at the effective date of the  merger or
consolidation will be either listed on a national securities exchange or
designated as a national market system security on an interdealer quotation
system by the National Association of Securities Dealers, Inc. or held of record
by more than 2,000 holders;

     c.   Cash in lieu of fractional shares or fractional depository receipts
described in the foregoing subparagraphs a. and b. of this paragraph; or

     d.   Any combination of the shares of stock, depository receipts and cash
in lieu of fractional shares or fractional depository receipts described in the
foregoing subparagraphs a., b. and c. of this paragraph.

     (3) In the event all of the stock of a subsidiary Delaware corporation
party to a merger effected under 253 of this title is not owned by the parent
corporation immediately prior to the merger, appraisal rights shall be available
for the shares of the subsidiary Delaware corporation.

                                   B-1
<PAGE>

     (c) Any corporation may provide in its certificate of incorporation that
appraisal rights under this section shall be available for the shares of any
class or series of its stock as a result of an amendment to its certificate of
incorporation, any merger or consolidation in which the corporation is a
constituent corporation or the sale of all or substantially all of the assets of
the corporation.  If the certificate of incorporation contains such a provision,
the procedures of this section, including those set forth in subsections (d) and
(e) of this section, shall apply as nearly as is practicable.

     (d) Appraisal rights shall be perfected as follows:

     (1) If a proposed merger or consolidation for which appraisal rights are
provided under this section is to be submitted for approval at a meeting of
stockholders, the corporation, not less than 20 days prior to the meeting, shall
notify each of its stockholders who was such on the record date for such meeting
with respect to shares for which appraisal rights are available pursuant to
subsections (b) or (c) hereof that appraisal rights are available for any or all
of the shares of the constituent corporations, and shall include in such notice
a copy of this section.  Each stockholder electing to demand the appraisal of
such stockholder's shares shall deliver to the corporation, before the taking of
the vote on the merger or consolidation, a written demand for appraisal of such
stockholder's shares.  Such demand will be sufficient if it reasonably informs
the corporation of the identity of the stockholder and that the stockholder
intends thereby to demand the appraisal of such stockholder's shares.  A proxy
or vote against the merger or consolidation shall not constitute such a demand.
A stockholder electing to take such action must do so by a separate written
demand as herein provided.  Within 10 days after the effective date of such
merger or consolidation, the surviving or resulting corporation shall notify
each stockholder of each constituent corporation who has complied with this
subsection and has not voted in favor of or consented to the merger or
consolidation of the date that the merger or consolidation has become effective;
or

     (2) If the merger or consolidation was approved pursuant to 228 or 253 of
this title, each constituent corporation, either before the effective date of
the merger or consolidation or within ten days thereafter, shall notify each of
the holders of any class or series of stock of such constituent corporation who
are entitled to appraisal rights of the approval of the merger or consolidation
and that appraisal rights are available for any or all shares of such class or
series of stock of such constituent corporation, and shall include in such
notice a copy of this section; provided that, if the notice is given on or after
the effective date of the merger or consolidation, such notice shall be given by
the surviving or resulting corporation to all such holders of any class or
series of stock of a constituent corporation that are entitled to appraisal
rights.  Such notice may, and, if given on or after the effective date of the
merger or consolidation, shall, also notify such stockholders of the effective
date of the merger or consolidation.  Any stockholder entitled to appraisal
rights may, within 20 days after the date of mailing of such notice, demand in
writing from the surviving or resulting corporation the appraisal of such
holder's shares.  Such demand will be sufficient if it reasonably informs the
corporation of the identity of the stockholder and that the stockholder intends
thereby to demand the appraisal of such holder's shares.  If such notice did not
notify stockholders of the effective date of the merger or consolidation, either
(i) each such constituent corporation shall send a second notice before the
effective date of the merger or consolidation notifying each of the holders of
any class or series of stock of such constituent corporation that are entitled
to appraisal rights of the effective date of the merger or consolidation or (ii)
the surviving or resulting corporation shall send such a second notice to all
such holders on or within 10 days after such effective date; provided, however,
that if such second notice is sent more than 20 days following the sending of
the first notice, such second notice need only be sent to each stockholder who
is entitled to appraisal rights and who has demanded appraisal of such holder's
shares in accordance with this subsection.  An affidavit of the secretary or
assistant secretary or of the transfer agent of the corporation that is required
to give either notice that such notice has been given shall, in the absence of
fraud, be prima facie evidence of the facts stated therein.  For purposes of
determining the stockholders entitled to receive either notice, each constituent
corporation may fix, in advance, a record date that shall be not more than 10
days prior to the date the notice is given, provided, that if the notice is
given on or after the effective date of the merger  or consolidation, the record
date shall be such effective date.  If no record date is fixed and the notice is
given prior to the effective date, the

                                      B-2
<PAGE>

record date shall be the close of business on the day next preceding the day on
which the notice is given.

     (e) Within 120 days after the effective date of the merger or
consolidation, the surviving or resulting corporation or any stockholder who has
complied with subsections (a) and (d) hereof and who is otherwise entitled to
appraisal rights, may file a petition in the Court of Chancery demanding a
determination of the value of the stock of all such stockholders.
Notwithstanding the foregoing, at any time within 60 days after the effective
date of the merger or consolidation, any stockholder shall have the right to
withdraw such stockholder's demand for appraisal and to accept the terms offered
upon the merger or consolidation.  Within 120 days after the effective date of
the merger or consolidation, any stockholder who has complied with the
requirements of subsections (a) and (d) hereof, upon written request, shall be
entitled to receive from the corporation surviving the merger or resulting from
the consolidation a statement setting forth the aggregate number of shares not
voted in favor of the merger or consolidation and with respect to which demands
for appraisal have been received and aggregate number of holders of such shares.
Such written statement shall be mailed to the stockholder within 10 days after
such stockholder's written request for such a statement is received by the
surviving or resulting corporation or within 10 days after expiration of the
period for delivery of demands for appraisal under subsection (d) hereof,
whichever is later.

     (f) Upon the filing of any such petition by a stockholder, service of a
copy thereof shall be made upon the surviving or resulting corporation, which
shall within 20 days after such service file in the office of the Register in
Chancery in which the petition was filed a duly verified list containing the
names and addresses of all stockholders who have demanded payment for their
shares and with whom agreements as to the value of their shares have not been
reached by the surviving or resulting corporation.  If the petition shall be
filed by the surviving or resulting corporation, the petition shall be
accompanied by such a duly verified list.  The Register in Chancery, if so
ordered by the Court, shall give notice of the time and place fixed for the
hearing of such petition by registered or certified mail to the surviving or
resulting corporation and to the stockholders shown on the list at the addresses
therein stated.  Such notice shall also be given by 1 or more publications at
least 1 week before the day of the hearing, in a newspaper of general
circulation published in the City of Wilmington, Delaware or such publication as
the Court deems advisable.  The forms of the notices by mail and by publication
shall be approved by the Court, and the costs thereof shall be borne by the
surviving or resulting corporation.

     (g) At the hearing on such petition, the Court shall determine the
stockholders who have complied with this section and who have become entitled to
appraisal rights.  The Court may require the stockholders who have demanded an
appraisal for their shares and who hold stock represented by certificates to
submit their certificates of stock to the Register in Chancery for notation
thereon of the pendency of the appraisal proceedings; and if any stockholder
fails to comply with such direction, the Court may dismiss the proceedings as to
such stockholder.

     (h) After determining the stockholders entitled to an appraisal, the Court
shall appraise the shares, determining their fair value exclusive of any element
of value arising from the accomplishment or expectation of the merger or
consolidation, together with a fair rate of interest, if any, to be paid upon
the amount determined to be fair value.  In determining such fair value, the
Court shall take into account all relevant factors.  In determining the fair
rate of interest, the Court may consider all relevant factors, including the
rate of interest which the surviving or resulting corporation would have had to
pay to borrow money during the pendency of the proceeding.  Upon application by
the surviving or resulting corporation or by any stockholder entitled to
participate in the appraisal proceeding, the Court may, in its discretion,
permit discovery or other pretrial proceedings and may proceed to trial upon the
appraisal prior to the final determination of the stockholder entitled to an
appraisal.  Any stockholder whose name appears on the list filed by the
surviving or resulting corporation pursuant to subsection (f) of this section
and who has submitted such stockholder's certificates of stock to the Register
in Chancery, if such is required, may participate fully in all proceedings until
it is finally determined that such stockholder is not entitled to appraisal
rights under this section.

                                      B-3
<PAGE>

     (i) The Court shall direct the payment of the fair value of the shares,
together with interest, if any, by the surviving or resulting corporation to the
stockholders entitled thereto.  Interest may be simple or compound, as the Court
may direct.  Payment shall be so made to each such stockholder, in the case of
holders of uncertificated stock forthwith, and the case of holders of shares
represented by certificates upon the surrender to the corporation of the
certificates representing such stock.  The Court's decree may be enforced as
other decrees in the Court of Chancery may be enforced, whether such surviving
or resulting corporation be a corporation of this State or of any state.

     (j) The costs of the proceeding may be determined by the Court and taxed
upon the parties as the Court deems equitable in the circumstances.  Upon
application of a stockholder, the Court may order all or a portion of the
expenses incurred by any stockholder in connection with the appraisal
proceeding, including, without limitation, reasonable attorney's fees and the
fees and expenses of experts, to be charged pro rata against the value of all
the shares entitled to an appraisal.

     (k) From and after the effective date of the merger or consolidation, no
stockholder  who has demanded appraisal rights  as provided in subsection (d) of
this section shall be entitled to vote such stock for any purpose or to receive
payment of dividends or other distributions on the stock (except dividends or
other distributions payable to stockholders of record at a date which is prior
to the effective date of the merger or consolidation); provided, however, that
if no petition for an appraisal shall be filed within the time provided in
subsection (e) of this section, or if such stockholder shall deliver to the
surviving or resulting corporation a written withdrawal of such stockholder's
demand for an appraisal and an acceptance of the merger or consolidation, either
within 60 days after the effective date of the merger or consolidation as
provided in subsection (e) of this section or thereafter with the written
approval of the corporation, then the right of such stockholder to an appraisal
shall cease.  Notwithstanding the foregoing, no appraisal proceeding in the
Court of Chancery shall be dismissed as to any stockholder without the approval
of the Court, and such approval may be conditioned upon such terms as the Court
deems just.

     (l) The shares of the surviving or resulting corporation to which the
shares of such objecting stockholders would have been converted had they
assented to the merger or consolidation shall have the status of authorized and
unissued shares of the surviving or resulting corporation.

                                      B-4
<PAGE>


                                   APPENDIX C

                    OPINION OF BOWLES HOLLOWELL CONNER & CO.


CONFIDENTIAL

April 15, 1999


The Board of Directors
AvData Systems, Inc.
55 Marietta Street
Atlanta, GA  30303

Members of the Board:

You have asked us to advise you with respect to the fairness, from a financial
point of view, to the stockholders of AvData Systems, Inc. ("AvData") of the
consideration to be received by such stockholders pursuant to the terms of the
Agreement and Plan of Merger, dated as of April 15, 1999 (the "Merger
Agreement"), among AvData, ITC/\DeltaCom, Inc. ("ITCD") and Interstate Fibernet,
Inc., a wholly-owned subsidiary of ITCD ("ITCD Sub").  As more fully described
in the Merger Agreement, (i) AvData will be merged with and into ITCD Sub (the
"Merger") and (ii) each outstanding share of the Common Stock, par value $0.01
per share, of AvData ("AvData Common Stock") will be converted into and
exchanged for the right to receive (a) the number of fully paid and
nonassessable shares of the Common Stock, par value $.01 per share, of ITCD
("ITCD Common Stock") equal to the Exchange Ratio as defined in Section 2.1(a)
                                                                --------------
of the Merger Agreement and (b) the right to receive the number of Earnout
Shares as identified in Section 2.8 in the Merger Agreement, subject to the
                        -----------
terms and conditions of the Merger Agreement (the "Merger Consideration").

In arriving at our opinion, we have, among other things:

 .  Reviewed the financial terms of the Merger, as set forth in the Merger
   Agreement;

 .  Reviewed certain historical business, financial and other information
   regarding AvData and ITCD that was publicly available or furnished to us by
   members of AvData or ITCD management;

 .  Reviewed certain financial forecasts and other data provided to us by members
   of AvData or ITCD management relating to their respective business;

 .  Conducted discussions with members of AvData and ITCD management with respect
   to their respective business, financial and other information, including
   their respective business prospects and financial forecasts;

 .  Conducted discussions with members of AvData regarding various strategic and
   operating benefits anticipated from the Merger;

 .  Reviewed certain financial terms of the Merger in relation to the current and
   historical market prices and trading volumes of ITCD Common Stock;

 .  Compared the financial position and operating results of AvData with those of
   publicly traded companies we deemed relevant;

                                      C-1
<PAGE>


 .  Compared the financial terms of the Merger with certain of the financial
   terms of other similar transactions we deemed relevant; and

 .  Conducted such other financial studies, analyses and investigations as we
   deemed appropriate.

In connection with our review, we have relied upon the accuracy and completeness
of the foregoing financial and other information, and we have not assumed any
responsibility for any independent verification of such information.  With
respect to AvData's financial projections, we have assumed that they have been
reasonably prepared and reflect the best current estimates and judgment of
AvData's management as to the future financial performance of AvData.  We have
discussed AvData's financial projections with management of AvData, but we
assume no responsibility for and express no view as to AvData's financial
projections or the assumptions upon which they are based.  In arriving at our
opinion, we have not conducted any physical inspection of the properties or
facilities of AvData or ITCD and have not made or been provided with any
evaluations or appraisals of the assets or liabilities of AvData or ITCD.

Our opinion is necessarily based on economic, market, financial and other
conditions and the information made available to us as of the date hereof.  It
should be understood that, although subsequent developments may affect this
opinion, we do not have any obligation to update, revise or reaffirm this
opinion.

In rendering our opinion, we have assumed that the Merger will be consummated on
the terms described in the Merger Agreement that we reviewed, without any waiver
of any material terms or conditions, and with your permission, we have further
assumed that, on the Closing Date (as defined in the Merger Agreement) the price
per share of ITCD Common Stock will not be less than $11.50.  Our opinion does
not address the relative merits of the Merger and the other business strategies
considered by AvData's Board of Directors, nor does it address AvData's Board of
Directors' decision to proceed with the Merger.

Bowles Hollowell Conner, a division of First Union Capital Markets Corp., is an
investment banking firm and an affiliate of First Union Corporation.  We have
been engaged to render financial advisory services to AvData in connection with
the Merger and will receive a fee upon the delivery of this opinion.  In the
ordinary course of our business, we and our affiliates may actively trade or
hold the securities of ITCD for our own account or for the account of our
customers and, accordingly, may at any time hold a long or short position in
such securities.  We or our affiliates have in the past provided investment
banking and financial advisory services to AvData and ITCD unrelated to the
Merger, for which services we have received compensation.  In addition, Bowles
Hollowell Conner and its affiliates (including First Union Corporation and its
affiliates) may maintain relationships with AvData and ITCD.

          Our advisory services and the opinion expressed herein are provided
for the information of the Board of Directors of AvData in its evaluation of the
Merger and do not constitute a recommendation to any holder of AvData Common
Stock as to how such holder should vote with respect to the Merger.  Our opinion
may not be published or otherwise used or referred to, nor shall any public
reference to Bowles Hollowell Conner, First Union Capital Markets Corp. or First
Union Corporation be made, without our prior written consent.

                                      C-2
<PAGE>


Based upon and subject to the foregoing, our experience as investment bankers,
our work as described above and other factors we deemed relevant, we are of the
opinion that, as of the date hereof, the Merger Consideration is fair, from a
financial point of view, to the holders of AvData Common Stock.


Very truly yours,



BOWLES HOLLOWELL CONNER




                                      C-3
<PAGE>

                                    PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS

Item 20.  Indemnification of Directors and Officers

  Under Section 145 of the Delaware General Corporation Law (``DGCL''), a
corporation may indemnify its directors, officers, employees and agents and its
former directors, officers, employees and agents and those who serve, at the
corporation's request, in such capacities with another enterprise, against
expenses (including attorneys' fees), as well as judgments, fines and
settlements in nonderivative lawsuits, actually and reasonably incurred in
connection with the defense of any action, suit or proceeding in which they or
any of them were or are made parties or are threatened to be made parties by
reason of their serving or having served in such capacity. The DGCL provides,
however, that such person must have 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, in the case of a criminal action, such person must have had
no reasonable cause to believe his or her conduct was unlawful. In addition, the
DGCL does not permit indemnification in an action or suit by or in the right of
the corporation, where such person has been adjudged liable to the corporation,
unless, and only to the extent that, a court determines that such person fairly
and reasonably is entitled to indemnity for costs the court deems proper in
light of liability adjudication. Indemnity is mandatory to the extent a claim,
issue or matter has been successfully defended.

  ITC/\DeltaCom's Restated Certificate of Incorporation contains provisions that
provide that no director of ITC/\DeltaCom shall be liable for breach of
fiduciary duty as a director except for (1) any breach of the directors' duty of
loyalty to ITC/\DeltaCom or its stockholders; (2) acts or omissions not in good
faith or which involve intentional misconduct or a knowing violation of the law;
(3) liability under Section 174 of the DGCL; or (4) any transaction from which
the director derived an improper personal benefit. Under the Amended and
Restated Bylaws of ITC/\DeltaCom, ITC/\DeltaCom is required to advance expenses
incurred by an officer or director in defending any such action if the director
or officer undertakes to repay such amount if it is determined that the director
or officer is not entitled to indemnification. In addition, ITC/\DeltaCom has
entered into indemnity agreements with each of its directors pursuant to which
ITC/\DeltaCom has agreed to indemnify the directors as permitted by the DGCL.
ITC/\DeltaCom has obtained directors and officers liability insurance against
certain liabilities, including liabilities under the Securities Act.

                                     II-1
<PAGE>

Item 21.  Exhibits


<TABLE>
<CAPTION>
         EXHIBIT
         NUMBER       -----------------------------------------------------------------------------
         ------                                    EXHIBIT DESCRIPTION
                      -----------------------------------------------------------------------------
        <S>           <C>
         3.1          Certificate of Incorporation of ITC/\DeltaCom, Inc. (filed as Exhibit 3.1 to
                      Registration Statement on Form S-4, File No. 333-71735, and incorporated
                      herein by reference).
         3.2          Amended and Restated Bylaws of ITC/\DeltaCom, Inc. (filed as Exhibit 3.2 to
                      Registration Statement on Form S-1, as amended, File No. 333-36683 ("Form
                      S-1"), and incorporated herein by reference).
         4            Form of Common Stock Certificate of ITC/\DeltaCom, Inc. (filed as Exhibit 4.1
                      to Form S-1 and incorporated herein by reference).
         5            Opinion of Hogan & Hartson L.L.P. as to the validity of the securities
                      registered hereunder, including the consent of that firm.
         8            Form of Opinion of Hogan & Hartson L.L.P. as to certain tax matters, including the
                      consent of that firm.
         23.1         Consent of Arthur Andersen LLP.
         23.2         Consent of Arthur Andersen LLP.
         23.3         Consent of Bowles Hollowell Conner & Co.
         24           Power of Attorney (included in signature page).+
         99.1         Form of AvData proxy card.
         99.2         Fairness Opinion of Bowles Hollowell Conner & Co. (attached as Appendix C).
</TABLE>
_________________

+      Previously filed.




Item 22.  Undertakings

  Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers and controlling persons of the
registrant pursuant to 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 Securities 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 person 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 and will be governed by the final
adjudication of such issue.

  The undersigned registrant hereby undertakes to respond to requests for
information that is incorporated by reference into the prospectus pursuant to
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 this Registration Statement through
the date of responding to the request.

  The undersigned registrant hereby undertakes to supply by means of a post-
effective amendment all information concerning a transaction, and the company
being acquired involved

                                     II-2
<PAGE>

therein, that was not the subject of and included in this Registration Statement
when it became effective.

  The undersigned registrant hereby undertakes 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 (the ``Securities Act'');

     (ii) to reflect in the prospectus any facts or events arising after the
  effective date of this Registration Statement (or the most recent post-
  effective amendment hereof) which, individually or in the aggregate,
  represents a fundamental change in the information set forth in this
  Registration Statement. Notwithstanding 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 Securities and Exchange
  Commission pursuant to 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
  this Registration Statement when it becomes effective; and

     (iii) to include any material information with respect to the plan of
  distribution not previously disclosed in this Registration Statement or any
  material change to such information in this Registration Statement.

  The undersigned registrant hereby undertakes that, for the purpose of
determining any liability under the Securities Act, each such post-effective
amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time
shall be deemed to be the initial bona fide offering thereof.

  The undersigned registrant hereby undertakes that, for purposes of determining
any liability under the Securities Act, each filing of the registrant's annual
report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act that is
incorporated by reference in the registration statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

  The undersigned registrant hereby undertakes as follows:  that prior to any
public reoffering of the securities registered hereunder through the 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 Form S-4 with respect to reofferings by persons who may be deemed
underwriters, in addition to the information called for by the other items of
Form S-4.

  The undersigned registrant hereby undertakes that every prospectus (i) that is
filed pursuant to the immediately preceding paragraph, or (ii) that purports to
meet the requirements of Section 10(a)(3) of the Act and is used in connection
with an offering of securities subject to Rule 415, will be filed as a 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-effective amendment shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.



                                     II-3
<PAGE>


                                  SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-4 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of West Point, State of Georgia, on this 3rd day of
June, 1999.


                                    ITC/\DELTACOM, INC.



                                    By:    /s/  Douglas A. Shumate
                                           -----------------------
                                                     Douglas A. Shumate
                                                  Senior Vice President and
                                                   Chief Financial Officer


     Pursuant to the requirements of the Securities Act of 1933, this amended
Registration Statement has been signed below by the following persons, in the
capacities indicated below, on this 3rd day of June, 1999.

<TABLE>
<CAPTION>
                    Signature                                          Title                             Date
                    ---------                                          -----                             ----
<S>                                                  <C>                                         <C>

          /s/ Campbell B. Lanier, III                Chairman, Director                              June 3, 1999
- ------------------------------------------------
          Campbell B. Lanier, III

          /s/ Andrew M. Walker                       Chief Executive Officer,                        June 3, 1999
- ------------------------------------------------     Vice Chairman and Director
            Andrew M. Walker                         (Principal executive officer)

          /s/ Douglas A. Shumate                     Senior Vice President and Chief                 June 3, 1999
- ------------------------------------------------      Financial Officer (Principal
            Douglas A. Shumate                        financial officer and principal
                                                      accounting officer)
</TABLE>


                                     II-4

<PAGE>


<TABLE>
<S>                                                  <C>                                             <C>

          /s/ Donald W. Burton *                     Director                                        June 3, 1999
- ------------------------------------------------
          Donald W. Burton

          /s/ Malcolm C. Davenport, V *              Director                                        June 3, 1999
- ------------------------------------------------
            Malcolm C. Davenport, V

          /s/ Robert A. Dolson *                     Director                                        June 3, 1999
- ------------------------------------------------
           Robert A. Dolson

          /s/ O. Gene Gabbard *                      Director                                        June 3, 1999
- ------------------------------------------------
           O. Gene Gabbard

          /s/ William T. Parr*                       Director                                        June 3, 1999
- ------------------------------------------------
             William T. Parr

          /s/ William H. Scott, III*                 Director                                        June 3, 1999
- ------------------------------------------------
         William H. Scott, III

          /s/ William B. Timmerman *                 Director                                        June 3, 1999
- ------------------------------------------------
            William B. Timmerman
</TABLE>


*By: Power of Attorney
/s/ Douglas A. Shumate

                                     II-5

<PAGE>

                                 EXHIBIT INDEX


<TABLE>
<CAPTION>

          EXHIBIT
          NUMBER                                   EXHIBIT DESCRIPTION
          ------      -----------------------------------------------------------------------------
          <S>         <C>
            3.1       Certificate of Incorporation of ITC/\DeltaCom, Inc. (filed as Exhibit 3.1 to
                      Registration Statement on Form S-4, File No. 333-71735, and incorporated
                      herein by reference).
            3.2       Amended and Restated Bylaws of ITC/\DeltaCom, Inc. (filed as Exhibit 3.2 to
                      Registration Statement on Form S-1, as amended, File No. 333-36683 ("Form
                      S-1"), and incorporated herein by reference).
              4       Form of Common Stock Certificate of ITC/\DeltaCom, Inc. (filed as Exhibit 4.1
                      to Form S-1 and incorporated herein by reference).
              5       Opinion of Hogan & Hartson L.L.P. as to the validity of the securities
                      registered hereunder, including the consent of that firm.
              8       Form of Opinion of Hogan & Hartson L.L.P. as to certain tax matters, including the
                      consent of that firm.
           23.1       Consent of Arthur Andersen LLP.
           23.2       Consent of Arthur Andersen LLP.
           23.3       Consent of Bowles Hollowell Conner & Co.
             24       Power of Attorney (included in signature page).+
           99.1       Form of AvData proxy card.
           99.2       Fairness Opinion of Bowles Hollowell Conner & Co. (attached as Appendix C).
</TABLE>
_________________

+      Previously filed.

<PAGE>


                                                                       Exhibit 5
                                                                       ---------


                           Hogan & Hartson L.L.P.
                         555 Thirteenth Street, N.W.
                            Washington, D.C. 20004



                                 June 4, 1999


Board of Directors
ITC/\DeltaCom, Inc.
1791 O.G. Skinner Drive
West Point, Georgia 31833

Gentlemen:

         We are acting as special counsel to ITC/\DeltaCom, Inc., a Delaware
corporation ("ITC/\DeltaCom"), in connection with its registration statement on
Form S-4 (File No. 333-78401) (the "Registration Statement"), as amended, filed
with the Securities and Exchange Commission relating to the proposed offering of
up to 1,544,000 shares of ITC/\DeltaCom's common stock, par value $.01 per
share, all of which shares (the "Shares") may be issued by ITC/\DeltaCom in
accordance with the terms of the Agreement and Plan of Merger (the "Merger
Agreement"), dated as of April 15, 1999, as amended, by and between
ITC/\DeltaCom, Interstate FiberNet, Inc., AvData Systems, Inc., and Kenneth F.
Leddick, as representative of AvData's stockholders. This opinion letter is
furnished to you at your request to enable you to fulfill the requirements of
Item 601(b)(5) of Regulation S-K, 17 C.F.R. (S) 229.601(b)(5), in connection
with the Registration Statement.

         For purposes of this opinion letter, we have examined copies of the
following documents:

         1.   An executed copy of the Registration Statement and Pre-Effective
              Amendment No. 1 thereto.

         2.   An executed copy of the Merger Agreement.

         3.   The Restated Certificate of Incorporation of ITC/\DeltaCom, as
              certified by the Secretary of ITC/\DeltaCom on the date hereof as
              then being complete, accurate and in effect.

         4.   The Amended and Restated Bylaws of ITC/\DeltaCom, as certified by
              the Secretary of ITC/\DeltaCom on the date hereof as then being
              complete, accurate and in effect.

         5.   Resolutions of the Board of Directors of ITC/\DeltaCom adopted at
              a meeting held on May 11, 1999, as certified by the Secretary of
              ITC/\DeltaCom on the date hereof as then being complete, accurate
              and in effect, relating to, among other things, the issuance of
              the Shares and arrangements in connection therewith.

In our examination of the aforesaid documents, we have assumed the genuineness
of all signatures, the legal capacity of all natural persons, the accuracy and
completeness of all documents submitted to us, the authenticity of all original
documents, and the conformity with the original documents of all documents
submitted to us as copies (including
<PAGE>


telecopies). This opinion letter is given, and all statements herein are made,
in the context of the foregoing.

          This opinion letter is based as to matters of law solely on the
General Corporation Law of the State of Delaware.  We express no opinion herein
as to any other laws, statutes, regulations, or ordinances.

          Based upon, subject to and limited by the foregoing, we are of the
opinion that following (i) effectiveness of the Registration Statement, as
amended, (ii) issuance of the Shares pursuant to the terms of the Merger
Agreement, and (iii) receipt by ITC/\DeltaCom of the consideration for the
Shares specified in the Merger Agreement and resolutions of the Board of
Directors, the Shares will be validly issued, fully paid and nonassessable under
the General Corporation Law of the State of Delaware.

          This opinion letter has been prepared solely for your use in
connection with the filing of the Registration Statement on the date of this
opinion letter and speaks as of the date hereof.  We assume no obligation to
advise you of any changes in the foregoing subsequent to the delivery of this
opinion letter.

          We hereby consent to the filing of this opinion letter as Exhibit 5 to
the Registration Statement and to the reference to this firm under the caption
"Legal Matters" in the Proxy Statement/Prospectus constituting a part of the
Registration Statement.  In giving this consent, we do not thereby admit that we
are an "expert" within the meaning of the Securities Act of 1933, as amended.


                                 Very truly yours,


                                 /s/ Hogan & Hartson L.L.P.
                                 ---------------------------------

                                 HOGAN & HARTSON L.L.P.

<PAGE>


                                                                       Exhibit 8
                                                                       ---------

                     [FORM OF HOGAN & HARTSON L.L.P. OPINION]


                             Hogan & Hartson L.L.P.
                          555 Thirteenth Street, N.W.
                             Washington, D.C. 20004



                                      [DATE]


Gentlemen/Ladies:

          On April 15, 1999, AvData Systems, Inc. (the "Company"), a Delaware
corporation, ITC/\DeltaCom, Inc. ("Acquiror"), a Delaware corporation,
Interstate FiberNet, Inc. ("Merger Sub"), a Delaware corporation and a wholly-
owned subsidiary of Acquiror, and Kenneth F. Leddick, as the representative of
the AvData stockholders, entered into an Agreement and Plan of Merger (the
"Agreement") dated as of April 15, 1999, as amended, pursuant to which the
Company will be merged with and into Merger Sub (the "Merger"). Immediately
following the Merger, Merger Sub will contribute all of the assets of the
Company to ITC/DeltaCom\ Communications, Inc. ("DeltaCom"), a wholly-owned
subsidiary of Merger Sub. You have requested that we render an opinion with
respect certain federal income tax consequences of the Merger.

          In connection with the preparation of this opinion, we have examined
and with your consent relied upon (without any independent investigation or
review thereof) the following documents (including all exhibits and schedules
thereto): (1) the Agreement; (2) the Registration Statement on Form S-4 to be
filed with the Securities and Exchange Commission (the "Registration Statement")
and/or the Proxy Statement/Prospectus of Acquiror and the Company; (3)
representations and certifications made to us by Acquiror (attached hereto as
Exhibit A); (4) representations and certifications made to us by the Company
- ---------
(attached hereto as Exhibit B); (5) such other instruments and documents related
                    ---------
to the formation, organization and operation of Acquiror, Merger Sub and the
Company or to the consummation of the Merger and the transactions contemplated
thereby as we have deemed necessary or appropriate.   1/


                            The Proposed Transaction
                            ------------------------

          Based solely upon our review of the documents set forth above, and
upon such information as Acquiror, Merger Sub and the Company have provided to
us (which we have not attempted to verify in any respect), and in reliance upon
such documents and information, we understand that the proposed transaction and
the relevant facts with respect thereto are as follows:

          Acquiror is the owner of all of the outstanding stock of Merger Sub
and Merger Sub is the owner of all of the outstanding stock of DeltaCom.
Acquiror provides integrated voice and data telecommunications services on a
retail basis to mid-sized and major regional businesses in the southern United
States and is a leading regional provider of wholesale long-haul services to
other telecommunications companies.  Merger Sub operates fiber-optic networks in
Georgia, Alabama, Tennessee, Texas, Louisiana, Mississippi, Florida, North
Carolina and South Carolina.  DeltaCom provides integrated

- ---------------------
1/  All capitalized terms used herein and not otherwise defined shall have the
same meaning as they have in the Agreement.  All section references, unless
otherwise indicated, are to the Internal Revenue Code of 1986, as amended (the
"Code").
<PAGE>


telecommunications services to mid-sized and major regional businesses primarily
in the southern United States.

          The Company is a provider of satellite and terrestrial-based digital
network solutions, primarily to mid-size companies based in the southeastern
United States and to wireless messaging and cellular operators nationwide.

          Because it is believed that the businesses of DeltaCom and the Company
would be complementary, it is proposed that pursuant to the Agreement and the
laws of the State of Delaware, the Company merge with and into Merger Sub.  The
Company's separate corporate existence will cease and Merger Sub will be the
surviving corporation.  As the surviving corporation, Merger Sub will succeed to
all of the assets and liabilities of the Company under Delaware corporate law.
Immediately following the Merger, Merger Sub will contribute all of the assets
of the Company to DeltaCom.

          By virtue of the Merger, each share of Company Common Stock (excluding
fractional shares) will be converted into and exchanged for the right to receive
(i) the number of Acquiror Shares equal to the Exchange Ratio and (ii) the right
to receive the number of Earnout Shares set forth in the Agreement.  No fraction
of an Acquiror Share will be issued in connection with the Merger.  In lieu of
any such fractional share, the Company Stockholders that would be entitled to a
fractional share will have the right to receive an amount in cash, without
interest, equal to the product of such fraction multiplied by the Per Share
Price.  Holders of Dissenting Shares will be entitled to receive payment of the
fair market value of such shares of Company Common Stock held by them in
accordance with the provisions of Section 262 of the DGCL.

          Acquiror will withhold and retain in escrow from the Company
Stockholders a number of shares of Escrow Stock determined as set forth in
Section 2.3 of the Agreement.  The Escrow Stock will be placed in escrow as
security for the performance of the indemnity obligations of the Company
Stockholders under Section 10.2 of the Agreement.  The Escrow Stock will be
registered in the name of the Escrow Agent who will hold the Escrow Stock for
the accounts of the Company Stockholders in accordance with each Company
Stockholder's respective interest in the Escrow Stock and will vote the Escrow
Stock and any other shares included in the Escrow Property (as defined in
Section 2(i) of the Form of Escrow Agreement by and among Acquiror, Merger Sub,
the Company, the Escrow Agent and the Stockholders' Representative) in the same
percentage as all other Acquiror Shares are voted.  Any cash dividends paid with
respect to the Escrow Stock will be distributed as, if and when paid to the
Company Stockholders in proportion to each such Company Stockholder's
proportionate interest immediately prior to the Effective Time in the Company
Common Stock, subject to the provisions of the Agreement.

          Company Stockholders will have a contingent right to receive from
Acquiror a number of Earnout Share determined in accordance with Section 2.8 of
the Agreement.  The contingent right to receive Earnout Shares is personal to
each Company Stockholder and is not transferable.

                        Assumptions and Representations
                        -------------------------------

          In connection with rendering this opinion, we have assumed or obtained
representations (and, with your consent, are relying thereon, without any
independent investigation or review thereof, although we are not aware of any
material facts or circumstances contrary to or inconsistent therewith) that:

<PAGE>


          1.  All information contained in each of the documents we have
examined and relied upon in connection with the preparation of this opinion is
accurate and completely describes all material facts relevant to our opinion,
all copies are accurate and all signatures are genuine.  We have also assumed
that there has been (or will be by the Effective Time of the Merger) due
execution and delivery of all documents where due execution and delivery are
prerequisites to the effectiveness thereof.

          2.  The Merger will be consummated in accordance with applicable state
law and will qualify as a statutory merger under applicable state law.

          3.  All representations made in the exhibits hereto are true, correct
and complete in all material respects.  Any representation or statement made "to
the best of knowledge" or similarly qualified is correct without such
qualification.

          4.  The Merger will be consummated in accordance with the Agreement
and as described in the Registration Statement (including satisfaction of all
covenants and conditions to the obligations of the parties without amendment or
waiver thereof); each of Acquiror, Merger Sub and the Company will comply with
all reporting obligations with respect to the Merger required under the Code and
the Treasury Regulations thereunder; and the Agreement and all other documents
and instruments referred to therein or in the Registration Statement are valid
and binding in accordance with their terms.

                   Opinion - Federal Income Tax Consequences
                   -----------------------------------------

          Based upon and subject to the assumptions and qualifications set forth
herein, it is our opinion that for Federal income tax purposes the Merger will
qualify as a reorganization within the meaning of Section 368(a) of the Code and
that the following will result:

          (1) No gain or loss will be recognized by a Company Stockholder as a
result of the receipt solely of Acquiror Shares in exchange for such
stockholder's Company Common stock, except to the extent of any cash received in
lieu of fractional shares and except that a portion of any Earnout Shares
received by a Company Stockholder will be treated as interest income (section
354(a)(1)).

          (2) A Company Stockholder who receives cash in lieu of a fractional
Acquiror Share will be treated as if such stockholder received such fractional
share and then sold such share back to Acquiror.  Such stockholder will
recognize gain or loss on the sale of the fractional share equal to the
difference between (a) the amount of cash received for such fractional share and
(b) the stockholder's tax basis in such fractional share.

          (3) A Company Stockholder's tax basis in the Acquiror Shares received
in the Merger (other than the portion of the Earnout Shares treated as interest
income) will be equal to such stockholder's tax basis in the Company Common
Stock immediately prior to the Merger, reduced by the amount of basis allocable
to the fractional share (as described in (2), above) (section 358(a)(1)).

          (4) A Company Stockholder's holding period for Acquiror Shares
received in accordance with the Merger (other than the portion of the Earnout
Shares treated as interest income) will include the holding period of the
Company Common Stock for which it was exchanged, assuming such Company Common
Stock was held as a capital asset (section 1223(1)).
<PAGE>


          (5) Where cash is received by a dissenting Company Stockholder, such
cash payment will be treated by that stockholder as a distribution and
redemption of his or her Company Common Stock under the provisions and
limitations of Section 302 of the Code.

          In addition to the assumptions set forth above, this opinion is
subject to the exceptions, limitations and qualifications set forth below:

          1.  This opinion represents and is based upon our best judgment
regarding the application of relevant current provisions of the Code and
interpretations of the foregoing as expressed in existing court decisions,
administrative determinations (including the practices and procedures of the
Internal Revenue Service (the "IRS") in issuing private letter rulings, which
are not binding on the IRS except with respect to the taxpayer that receives
such a ruling) and published rulings and procedures all as of the date hereof.
An opinion of counsel merely represents counsel's best judgment with respect to
the probable outcome on the merits and is not binding on the Internal Revenue
Service or the courts.  There can be no assurance that positions contrary to our
opinions will not be taken by the IRS, or that a court considering the issues
would not hold contrary to such opinions.  Acquiror has not requested a ruling
from the IRS (and no ruling will be sought) as to any of the federal income tax
consequences addressed in this opinion.  Furthermore, no assurance can be given
that future legislative, judicial or administrative changes, on either a
prospective or retroactive basis, would not adversely affect the accuracy of the
opinion expressed herein.  Nevertheless, we undertake no responsibility to
advise you of any new developments in the law or in the application or
interpretation of the federal income tax laws.

          2.  This letter addresses only the specific tax opinions set forth
above.  This letter does not address any other federal, state, local or foreign
tax consequences that may result from the Merger or any other transaction
(including any transaction undertaken in connection with the Merger).

          3.  Our opinion is intended to address only the tax consequences to
the Company Stockholders, and is not intended to address (nor may it be relied
upon for) the tax consequences to Acquiror, Merger Sub or the Company.  We
express no opinion regarding, among other things, the tax consequences of the
Merger (including the opinion set forth above) as applied to specific
stockholders of the Company that may be relevant to particular classes of the
Company shareholders, such as dealers in securities, corporate shareholders
subject to the alternative minimum tax, foreign persons, and holders of shares
acquired upon exercise of stock options or in other compensatory transactions.


          4.  Our opinion set forth herein is based upon the description of the
contemplated transactions as set forth above in the section captioned "The
Proposed Transaction," the Agreement and the Registration Statement.  If the
actual facts relating to any aspect of the transactions differ from this
description in any material respect, our opinion may become inapplicable.  No
opinion is expressed as to any transaction other than those set forth in the
section captioned "The Proposed Transaction," the Agreement and the Registration
Statement or to any transaction whatsoever, including the Merger, if all the
transactions described in the section captioned "The Proposed Transaction," the
Agreement and the Registration Statement are not consummated in accordance with
the terms of the section captioned "The Proposed Transaction," the Agreement and
the Registration Statement and without waiver or breach of any material
provision thereof or if all of the representations, warranties, statements and
assumptions upon which we relied are not true and accurate at all relevant
times.  In the event any one of the statements, representations, warranties or
assumptions upon which we have relied to
<PAGE>


issue this opinion is incorrect, our opinion might be adversely affected and may
not be relied upon.

          This opinion is provided to Acquiror only, and without our prior
consent, may not be relied upon, used, circulated, quoted or otherwise referred
to in any manner by any person, firm, governmental authority or entity
whatsoever other than reliance thereon by Acquiror and the Company Stockholders.
Notwithstanding the prior sentence, we hereby consent to the use of the opinion
letter as an exhibit to the Registration Statement and to the use of our name in
the Registration Statement.  In giving the consent, we do not thereby admit that
we are an "expert" within the meaning of the Securities Act of 1933, as amended.






<PAGE>


                                                                    Exhibit 23.1
                                                                    ------------


                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

          As independent public accountants, we hereby consent to the
incorporation by reference in this registration statement of our reports dated
February 12, 1999 included in ITC/\DeltaCom, Inc.'s Form 10-K for the year ended
December 31, 1998 and to all references to our Firm included in this
registration statement.



/s/ Arthur Andersen LLP
Atlanta, Georgia

June 3, 1999

<PAGE>

                                                                    Exhibit 23.2
                                                                    ------------


                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

          As independent public accountants, we hereby consent to the use of our
report dated March 12, 1999 on the financial statements of AvData Systems, Inc.
(and to all references to our Firm) included in this amended registration
statement.


/s/ Arthur Andersen LLP
- ------------------------
Atlanta, Georgia
June 3, 1999

<PAGE>

                                                                    Exhibit 23.3
                                                                    ------------


                          CONSENT OF FINANCIAL ADVISOR




June 1, 1999



Board of Directors
AvData Systems, Inc.
55 Marietta Street
Atlanta, Georgia 30303

Members of the Board:

In accordance with the terms of our letter to you dated April 15, 1999 (the
"Letter"), you have requested our written consent to quote or refer to the
Letter and the opinion expressed therein with respect to the fairness, from a
financial point of view, to the stockholders of AvData Systems, Inc. ("AvData")
of the consideration to be received by such stockholders pursuant to the
Agreement and Plan of Merger, dated as of April 15, 1999, among ITC/\DeltaCom,
Inc., Interstate Fibernet, Inc. and AvData.

We hereby consent to the reproduction in full of the Letter and to the reference
to the Letter and Bowles Hollowell Conner in the prospectus and proxy statement
you distribute to the stockholders of AvData in connection with the proposed
merger.

Very truly yours,


/s/ Bowles Hollowell Conner
- ----------------------------
BOWLES HOLLOWELL CONNER
A division of First Union Capital Markets Corp.

<PAGE>

                                                                    Exhibit 99.1
                                                                    ------------


REVOCABLE PROXY

                              AVDATA SYSTEMS, INC.


          This Proxy is Solicited on Behalf of the Board of Directors


          The undersigned stockholder of AvData Systems, Inc. ("AvData") hereby
appoints James H. Black, Jr., Kenneth F. Leddick or Campbell B. Lanier III, or
any of them, with full power of substitution in each, as proxies to cast all
votes which the undersigned stockholder is entitled to cast at the special
meeting of stockholders to be held at 10:00 a.m. on July 7, 1999 at AvData's
offices located at 55 Marietta Street, 18th Floor, Atlanta, Georgia, 30303 and
at any adjournments or postponements thereof, upon the following matters.  The
undersigned stockholder hereby revokes any proxy or proxies heretofore given.


          This proxy will be voted as directed by the undersigned stockholder.
Unless contrary direction is given, this proxy will be voted: (1) to approve and
adopt an Agreement and Plan of Merger, dated as of April 15, 1999, as amended,
between ITC/\DeltaCom, Inc., Interstate FiberNet, Inc., and AvData Systems,
Inc., pursuant to which AvData will merger with and into Interstate FiberNet,
and the other transactions contemplated thereby and (2) otherwise in accordance
with the determination of a majority of the AvData board of directors. The
undersigned stockholder may revoke this proxy at any time before it is voted by
(i) delivering to the Secretary of AvData a written notice of revocation before
the stockholder meeting, (ii) delivering to AvData a duly executed proxy bearing
a later date before the stockholder meeting, or (iii) attending the stockholder
meeting and voting in person. The undersigned stockholder hereby acknowledges
receipt of the Notice of Special Meeting of AvData and the Proxy Statement and
Prospectus.

          If you receive more than one proxy card, please sign and return all
cards in the accompanying envelope.

             (continued and to be signed and dated on reverse side)


                                             -------------------
                                                    See
                                                Reverse Side
                                             -------------------
<PAGE>

                                             -------------------
                                                     X
                                             -------------------
                                               Please mark your
                                                 votes as this.


                                ---------------
                                    COMMON



Proposal 1:     To approve and adopt an Agreement and Plan of Merger, dated as
                of April 15, 1999, as amended, between ITC/\DeltaCom, Interstate
                FiberNet and AvData, pursuant to which AvData will merge with
                and into Interstate FiberNet, and the other transactions
                contemplated by the Agreement and Plan of Merger.

                FOR      AGAINST      ABSTAIN
                [ ]      [ ]          [ ]


Other Matters:  The proxies are authorized to vote upon such other business as
                may properly come before the stockholder meeting, or any
                adjournments or postponements of the meeting, including, without
                limitation, a motion to adjourn the stockholder meeting to
                another time and/or place for the purpose of soliciting
                additional proxies in order to approve the Agreement and Plan of
                Merger and the merger provided for therein or otherwise, in
                accordance with the determination of a majority of the AvData
                board of directors.



Date:    ______________________
         ______________________
         ______________________
               Signature of Stockholder or
               Authorized Representative


Please date and sign exactly as name appears hereon.  Each executor,
administrator, trustee, guardian, attorney-in-fact and other fiduciary should
sign and indicate his or her full title.  When stock has been issued in the name
of two or more persons, all should sign.


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