MOBILE TELECOMMUNICATION TECHNOLOGIES CORP
10-Q, 1996-05-15
RADIOTELEPHONE COMMUNICATIONS
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<PAGE>
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                   FORM 10-Q


                 Quarterly Report Under Section 13 or 15(d) of
                      the Securities Exchange Act of 1934


For Quarter Ended March 31, 1996
Commission File No. 0-17316


                  MOBILE TELECOMMUNICATION TECHNOLOGIES CORP.
             -----------------------------------------------------
             (Exact name of Registrant as specified in its charter)


                  Delaware                                64-0518209
       --------------------------------          -----------------------------
       (State or other jurisdiction              (I.R.S. Employer
       of incorporation or organization)         Identification Number)


        200 South Lamar Street, Mtel Centre,  Jackson, Mississippi 39201
        -----------------------------------------------------------------
          (Address of principal executive offices)          (Zip Code)


                                  (601) 944-1300
               ----------------------------------------------------
               (Registrant's telephone number, including area code)


    Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
Registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.

                               YES    X   NO ______
                                   -------         

    Indicate the number of shares outstanding of each of the Registrant's
classes of common stock, as of the latest practicable date.

                        54,259,697 shares of Common Stock,
                         par value $.01 per share, as of
                                  April 30, 1996
<PAGE>
 
                  MOBILE TELECOMMUNICATION TECHNOLOGIES CORP.

                         QUARTERLY REPORT ON FORM 10-Q

                                     INDEX



PART I.   FINANCIAL INFORMATION
          ---------------------

Item 1.   Consolidated Financial Statements

          Consolidated Balance Sheets--March 31, 1996 and December 31, 1995.

          Consolidated Statements of Operations--Three Months Ended March 31,
          1996 and 1995.

          Consolidated Statements of Cash Flows--Three Months Ended March 31,
          1996 and 1995.

          Notes to Consolidated Financial Statements.

Item 2.   Management's Discussion and Analysis of Financial Condition and
          Results of Operations


PART II.  OTHER INFORMATION
          -----------------

Item 1.   Legal Proceedings

Item 2.   Changes in Securities

Item 3.   Defaults upon Senior Securities

Item 4.   Submission of Matters to a Vote of Security Holders

Item 5.   Other Information

Item 6.   Exhibits and Reports on Form 8-K
 
          SIGNATURES
          ----------
                                       2
 
<PAGE>
 
                  MOBILE TELECOMMUNICATION TECHNOLOGIES CORP.

                          CONSOLIDATED BALANCE SHEETS
<TABLE>
<CAPTION>
 
 
                                                     March 31,      December 31,
                                                        1996            1995
                                                   --------------  --------------
<S>                                                <C>             <C>
ASSETS:
 
CURRENT ASSETS
 Cash and cash equivalents                         $   7,064,832   $   9,612,734
 Accounts receivable, net                             56,983,808      46,313,031
 Other receivables                                    37,075,920       5,488,392
 Other current assets                                 13,231,924       3,700,019
                                                   -------------   -------------
 
  TOTAL CURRENT ASSETS                               114,356,484      65,114,176
                                                   -------------   -------------
 
MESSAGING NETWORKS
 Property and equipment, net                         312,583,442     294,626,442
 Certificates of authority and license cost          160,467,375     159,101,539
 Network construction and development costs           89,505,828      88,145,489
                                                   -------------   -------------
 
  TOTAL MESSAGING NETWORKS                           562,556,645     541,873,470
                                                   -------------   -------------
 
GOODWILL                                              87,501,825      88,144,574
 
INVESTMENT IN UNCONSOLIDATED INTERNATIONAL VENTURES   69,654,387      68,043,591 
                                                                                 
OTHER ASSETS
  Securities restricted for debt service              56,407,789      64,101,245
  Other                                               21,510,917      24,136,475
                                                   -------------   -------------
 
  TOTAL OTHER ASSETS                                  77,918,706      88,237,720
                                                   -------------   -------------
 
                                                   $ 911,988,047   $ 851,413,531
                                                   =============   =============
 
LIABILITIES AND STOCKHOLDERS' INVESTMENT:
 
CURRENT LIABILITIES
 Current maturities of long-term debt              $   1,275,011   $   1,278,426
 Accounts payable and accrued liabilities            125,086,841      93,281,635
                                                   -------------   -------------
 
  TOTAL CURRENT LIABILITIES                          126,361,852      94,560,061
                                                   -------------   -------------
 
LONG-TERM DEBT                                       363,104,781     333,258,720
 
MINORITY INTEREST                                         48,260          54,501
 
STOCKHOLDERS' INVESTMENT
 Preferred Stock, par value $.01 per share;
   25,000,000 shares authorized;  3,750,000
    shares of
   $2.25 Cumulative Convertible Exchangeable
   Preferred Stock outstanding  in 1996 and 1995;
   30,000 shares of  7.5% Cumulative Convertible
   Accruing PIK Preferred Stock outstanding
   in 1996                                                37,800          37,500
 Common stock, par value $.01 per share;
  75,000,000 shares authorized; shares issued:
  54,160,711 in 1996 and 54,134,711 in 1995              541,607         541,347
 Additional paid-in capital                          587,983,856     557,837,759
 Accumulated deficit                                (164,067,060)   (133,383,935)
 Cumulative translation adjustment                    (2,023,049)     (1,492,422)
                                                   -------------   -------------
 
  TOTAL STOCKHOLDERS' INVESTMENT                     422,473,154     423,540,249
                                                   -------------   -------------
 
                                                   $ 911,988,047   $ 851,413,531
                                                   =============   =============
 
</TABLE>
                See notes to consolidated financial statements.

                                       3
<PAGE>
 
                  MOBILE TELECOMMUNICATION TECHNOLOGIES CORP.

                    CONSOLIDATED STATEMENTS OF OPERATIONS
<TABLE>  
<CAPTION> 
                                                                 Three Months Ended          
                                                                      March 31,              
                                                          ---------------------------------    
                                                                                             
                                                                1996              1995        
                                                                                             
                                                          -------------        ------------    
                                                                                             
<S>                                                       <C>                  <C>             
Revenues                                                  $  80,584,096        $ 50,628,191    
                                                                                             
Expenses:                                                                                    
   Operating                                                 28,881,557          11,904,344    
   Selling, general and administrative                       56,087,543          36,918,588    
   Depreciation and amortization                             21,751,243           7,105,054    
                                                          -------------        ------------    
                                                                                             
                                                            106,720,343          55,927,986    
                                                          -------------        ------------    
                                                                                             
Operating income (loss)                                     (26,136,247)         (5,299,795)   
                                                                                             
Interest income                                               1,436,310           4,200,776    
Interest expense                                             (9,989,762)         (3,177,027)   
Gain (loss) on sale of assets                                 6,649,408                (973)   
Other income                                                     30,148             443,705    
                                                          -------------        ------------     
                                                                                     
Income (loss) before income taxes
   and equity income (losses)                               (28,010,143)         (3,833,314)
 
Provision for income taxes                                      620,823             167,212
Equity in income (losses) of
   investments                                                   57,208              (7,960)
                                                          -------------        ------------
 
 
Net income (loss)                                          ($28,573,758)        ($4,008,486)
 
Preferred dividend requirement                                2,109,375           2,109,375
                                                          -------------        ------------
 
Net income (loss) available to common stockholders         ($30,683,133)        ($6,117,861)
                                                          =============        ============
 
Net income (loss) per common share                               ($0.57)             ($0.13)
                                                          =============        ============
 
</TABLE>



                See notes to consolidated financial statements.

                                       4
<PAGE>
 
                  MOBILE TELECOMMUNICATION TECHNOLOGIES CORP.

                     CONSOLIDATED STATEMENTS OF CASHFLOWS
<TABLE>  
<CAPTION> 

                                                                                    Three Months Ended
                                                                                         March 31,
                                                                            ----------------------------------

                                                                                  1996              1995 
<S>                                                                          <C>                <C> 
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income (loss)                                                          ($28,573,758)      $ (4,008,486)
   Adjustments to reconcile net income to net
   cash provided by operating activities:
    Depreciation and amortization                                              21,751,243          7,105,054
    Provision for losses on accounts receivable                                 4,453,909          1,622,838
    Amortization of debt issuance costs                                           560,041             36,715
    Foreign currency transaction (gain) loss                                      (23,907)             9,764
    (Gain) loss on sale of assets                                              (6,649,408)               973
    Losses attributable to minority interests                                      (6,241)          (453,468)
    Equity in (income) losses from investments                                    (57,208)             7,960
  Change in assets and liabilities:
    (Increase) in accounts receivable                                         (15,124,686)        (7,146,138)
    (Increase) in other receivables                                            (1,612,404)             -
    (Increase) decrease in other current assets                                (9,531,905)         2,977,555
    Increase in accounts payable and accrued liabilities                       31,805,206          7,171,322
                                                                            -------------       ------------
 
  Net Cash Provided By Operating Activities                                    (3,009,118)         7,324,089
                                                                            -------------       ------------
 
CASH FLOWS FROM INVESTING ACTIVITIES:
  Proceeds from sale of assets                                                  8,981,877              -
  Capital expenditures, net                                                   (41,087,146)       (46,226,492)
  (Increase) in investment in unconsolidated international ventures            (2,106,733)        (3,932,014) 
                                                                        
  (Increase) decrease in other assets                                           6,744,499         (2,202,625)
  (Increase) in short term investments                                              -            (25,984,079)
                                                                            -------------       ------------
 
  Net Cash (Used In) Investing Activities                                     (27,467,503)       (78,345,210)
                                                                            -------------       ------------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from long-term borrowings                                           30,000,000             41,288
  Principal payments on long-term debt                                           (133,447)        (5,960,118)
  Payment of dividends on preferred stock                                      (2,109,375)        (2,109,375)
  Sale of stock and exercise of options                                           171,541          3,104,261
                                                                            -------------       ------------
 
  Net Cash Provided By (Used In) Financing Activities 
                                                                               27,928,719         (4,923,944)
                                                                            -------------       ------------
 
 
       Net (decrease) in cash and cash equivalents                             (2,547,902)       (75,945,065)
 
       Cash and cash equivalents - beginning of period                          9,612,734        145,620,779
                                                                            -------------       ------------
 
       Cash and cash equivalents - end of period                            $   7,064,832       $ 69,675,714
                                                                            =============       ============
</TABLE>



                See notes to consolidated financial statements.

                                       5
<PAGE>
 
MOBILE TELECOMMUNICATION TECHNOLOGIES CORP. AND SUBSIDIARIES NOTES TO 
CONSOLIDATED FINANCIAL STATEMENTS

1.     ORGANIZATION; RISKS AND UNCERTAINTIES

       Mobile Telecommunication Technologies Corp. ("Mtel" or the "Company") is
a leading provider of nationwide messaging services in the United States.
Mtel's wholly-owned subsidiary, SkyTel Corp. ("SkyTel"), operates a one-way
nationwide messaging system whereby subscribers can be reached in thousands of
towns and cities in the United States by means of two dedicated 931 MHz
frequencies licensed by the Federal Communications Commission ("FCC"), a ground-
based transmitter system, leased satellite facilities and proprietary network
software.

       On September 19, 1995, the Company launched commercial operation of
SkyTel 2-Way/TM/, the first two-way nationwide wireless messaging network in the
United States, which enables subscribers to send and receive two-way messages
through the use of a new class of small low-power, light-weight devices, as well
as laptop and palmtop computers, without the need to know the location of the
sender or receiver at the time of transmission.  SkyTel 2-Way/TM/ utilizes a
proprietary system architecture designed and developed by Mtel and offers a
broad range of communications services, including acknowledgment paging,
wireless two-way messaging and information services.  Mtel's 100%-owned
subsidiary Destineer Corp. owns the FCC license utilized by the SkyTel 2-Way/TM/
network.

       Mtel, through its 100%-owned subsidiary Mtel International, Inc. ("Mtel
International"), operates or has investments in entities that operate one-way
wireless messaging systems in various countries worldwide.  Mtel also provides
its subscribers with access to an international messaging 

                                       6
<PAGE>
 
network that utilizes Mtel's proprietary technology and interconnects the
systems operated by Mtel and its joint ventures with systems in Canada,
Singapore and other countries.

       Mtel is also engaged in a variety of other telecommunications-related
businesses including air-to-ground telecommunications operations and telephone
answering services.

       Mtel operates primarily through three business segments: SkyTel one-way 
messaging, SkyTel 2-Way (TM) and international messaging operations.  For the 
first quarter of 1996, SkyTel one-way messaging, the Company's principal 
operating segment, reported revenues of $72.2 million, operating income of $13.1
million and net income of $11.9 million.  SkyTel 2-Way, (TM), which commenced 
commercial operation in September 1995 and is currently in a start-up phase, 
reported revenues of $2.0 million, an operating loss of $31.6 million and a net 
loss of $41.2 million for the first quarter of 1996. Mtel's international 
operations reported revenues of $4.1 million, an operating loss of $5.8 million 
and a net loss of $7.5 million from its majority-owned ventures for the quarter 
ended March 31, 1996.  For purposes of reporting operating income (loss) for the
Company's business segments, certain indirect operating and selling, general and
administrative costs are allocated among the business segments based on the 
percentage of time spent by personnel on each segment's activities.

       See Note 1 of Notes to Consolidated Financial Statements in Mtel's Annual
Report on Form 10-K for the year ended December 31, 1995 for a discussion of
certain risks and uncertainties involving the Company's ability to generate
future positive operating cash flows and operating income, the March 1996
amendment of the bank credit facility and the impact of certain events and
transactions required by such amendment on the availability of the capital
resources needed by the Company to complete its business plans.

2.     BASIS OF PRESENTATION

       The consolidated financial statements include the accounts of Mtel and
its majority-owned subsidiaries.  All significant intercompany transactions and
balances have been eliminated in consolidation.

       The Company's consolidated financial statements for the three months
ended March 31, 1996 and 1995 have not been audited by independent public
accountants.  However, in the opinion of management, these financial statements
include all adjustments (which include only normal recurring adjustments)
necessary for a fair presentation.  The results for the period are not
necessarily indicative of the results for the year ending December 31, 1996.

                                       7
<PAGE>
 
3.     EARNINGS (LOSS) PER SHARE

       Loss per share for the first quarter of 1996 and 1995 is calculated by
dividing the net loss (after deducting preferred stock dividends) by the
weighted average number of shares of common stock outstanding during the period
with no effect given to common stock equivalents arising from stock options,
convertible subordinated debt and convertible preferred stock because such
effect would be antidilutive.  The weighted average number of shares of common
stock outstanding in the first quarter of 1996 and 1995 was 54,146,216 and
48,847,963, respectively.
 
4.     FOREIGN CURRENCY

       The assets and liabilities of international subsidiaries are translated
into U.S. dollars using the period-end exchange rates. Revenues and expenses are
translated at the average rates during the periods presented.  Translation
adjustments are charged to a separate component of stockholders' investment.

5.     BANK CREDIT FACILITY

       In December 1995, SkyTel established a $250.0 million secured revolving
credit facility with a syndicate of financial institutions.  As part of the bank
credit facility, SkyTel is also provided with access to letters of credit in an
amount up to $20.0 million.  Borrowings under the credit facility may be used
for capital expenditures, working capital and other general corporate purposes.

       As a result of higher than projected capital expenditures in the fourth
quarter of 1995, primarily related to the purchase of pagers to support one-way
sales, the purchase of Flex pagers to alleviate capacity constraints on the
Company's one-way messaging network and higher than 

                                       8
<PAGE>
 
expected development costs associated with the SkyTel 2-Way/TM/ network, SkyTel
incurred higher than expected borrowings under its bank credit facility. The
capital expenditures and resulting borrowings caused SkyTel to be in violation
of a capital expenditure covenant in its bank loan agreement as of December 31,
1995 and a leverage maintenance covenant during the first quarter of 1996, and
resulted in a temporary suspension of the Company's borrowing availability under
the bank credit facility. On March 29, 1996, the lending banks waived these
covenant violations and agreed to certain amendments to the bank loan agreement
to provide additional operational flexibility under the bank credit facility.

    As a result of the amendment, the interest rate on borrowings under the
credit facility through March 31, 1997 will bear interest at the alternate base
rate plus 1 3/4% or the London Interbank Offered Rate ("LIBOR") plus 2 3/4%, an
increase of 25 basis points from the interest rates set forth in the original
loan agreement. Thereafter, the rate of interest on borrowings will return to
the level set forth in the original loan agreement. In addition, the amendment
requires the Company to complete the following transactions on or before the
dates indicated: (i) on or before May 15, 1996, the Company is required to
complete the sale of such number of shares of PIK Preferred Stock (as defined in
Note 6) as will result in the Company receiving gross proceeds of $50.0 million;
(ii) on or before June 30, 1996, the Company is required to complete its
previously planned sale of its 29% equity interest in Mercury Paging Ltd.
("MPL"), which operates in the United Kingdom, and its previously planned sale
of equity securities of a subsidiary formed for the purpose of holding

                                       9
<PAGE>
 
the Company's investments in operations in Latin America for certain minimum
proceeds; and (iii) on or before December 31, 1996, the Company is required to
complete its previously planned sale of equity securities of a subsidiary to be
formed for the purpose of holding the Company's investments in operations in
Asia for certain minimum proceeds. The Company has satisfied the condition
requiring the sale of equity securities of the Company described above through
the sale of PIK Preferred Stock. See Note 6.

       Management of the Company believes that all of the remaining transactions
described above required under the amended loan agreement will be concluded by
the dates prescribed in the amended loan agreement.  However, the failure to
meet any of these requirements would result in an event of default under the
amended loan agreement.

6.     PIK PREFERRED STOCK

       In March 1996, the Company entered into agreements to sell 30,000 shares
of its 7.5% Cumulative Convertible Accruing PIK Preferred Stock (the "PIK
Preferred Stock") for an aggregate purchase price of $30.0 million, the proceeds
from which were received by the Company by April 3, 1996.  A receivable in the
amount of $30.0 million, representing the gross proceeds from the sale of the
PIK Preferred Stock, was recorded as Other Receivables on Mtel's Consolidated
Balance Sheet as of March 31, 1996.  In addition, in April and May of 1996, the
Company sold 22,500 additional shares of PIK Preferred Stock for an aggregate
purchase price of $22.5 million.  See Note 5.  The proceeds from the sale of the
PIK Preferred Stock will be used for general corporate purposes including the
continued development and optimization of the SkyTel 2-Way/TM/ network.

                                       10
<PAGE>
 
7.     SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION


       Interest paid by Mtel was $1,359,000 and $403,000 during the three months
ended March 31, 1996 and 1995, respectively.  No federal income taxes were paid
during these periods.

                                       11
<PAGE>
 
Item 2.    MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
           CONDITION AND RESULTS OF OPERATIONS

    The following is a discussion of the consolidated financial condition and
results of operations of Mtel for the quarters ended March 31, 1996 and 1995 and
certain factors that will affect Mtel's financial condition.  See Note 1 of
Notes to Consolidated Financial Statements in Mtel's Annual Report on Form 10-K
for the year ended December 31, 1995 for a discussion of certain risks and
uncertainties involving the Company's ability to generate future positive
operating cash flows and operating income, the March 1996 amendment of the bank
credit facility and the impact of certain events and transactions required by
such amendment on the availability of the capital resources needed by the
Company to complete its business plans.

    Certain statements set forth in Management's Discussion and Analysis of
Financial Condition and Results of Operations, which are not historical facts,
are forward-looking statements under the Private Securities Litigation Reform
Act of 1995 that are subject to risks and uncertainties that could cause actual
results to differ materially from those set forth in the forward-looking
statements.  Among the factors that could cause actual future results to differ
materially are competitive pressures, the timing and technique used in marketing
by third-party distributors and the market acceptance of certain services.

RESULTS OF OPERATIONS

    REVENUES

    Revenues on a consolidated basis increased 59% in the first three months of
1996 as compared to the first three months of 1995, primarily due to the 55%
increase in SkyTel one-way 

                                       12
<PAGE>
 
messaging revenues in the first three months of 1996 as compared to the first
three months of 1995. As of March 31, 1996, SkyTel had 967,700 one-way messaging
units in service, an increase of 62% over the 597,300 one-way messaging units in
service as of March 31, 1995. In the first quarter of 1996, SkyTel one-way
messaging units in service increased by 60,500 net units as compared to 93,900
net unit additions in the fourth quarter of 1995. The lower rate of net unit
additions in the first quarter of 1996 as compared to the fourth quarter of 1995
resulted from lower sales by resellers, including MCI, and the termination of
certain agent relationships. Revenues from one-way messaging operations
increased 8% in the first quarter of 1996 as compared to the fourth quarter of
1995 due to a shift in product mix to increased alpha-numeric products and
because a significant portion of the net unit additions in the first quarter of
1996 were placed in service through the Company's direct sales force. The
Company expects to experience increased churn rates in 1996 as a result of the
termination of these agent relationships and the churn rates being experienced
by its resellers, including MCI, although the Company cannot predict the extent
to which net unit additions in 1996 will be adversely affected by such churn
rates.

    Mtel's consolidated revenues include revenues recorded by the Company's
wholly-owned subsidiary in Argentina which commenced commercial operation in
April 1994, its 98%-owned subsidiary in Colombia which commenced commercial
operation in June 1994, its 100%-owned subsidiary in Hong Kong which commenced
commercial operation in June 1995 and its 90%-owned subsidiary in Uruguay which
was acquired in September 1995. During the first three months of 1996, revenues
recorded by the Company's consolidated international operations provided
approximately 5% of Mtel's revenues as compared to 3% in the first quarter of
1995.

    During the first three months of 1996, SkyTel provided approximately 90% of
Mtel's revenues as compared to 92% in the first three months of 1995. SkyTel 2-
Way/TM/ provided 2.5% of consolidated revenues during the first quarter of 1996.
Other Mtel operations provided approximately 3% of revenues in the first three
months of 1996 as compared to 5% in the first three months of 1995.

                                       13
<PAGE>
 
    EXPENSES

    Expenses include operating, selling, general and administrative, and
depreciation and amortization.

    Operating expenses primarily consist of salaries, telephone costs and
transmitter and receiver site rentals associated with the Company's one-way and
two-way messaging operations in the United States and international messaging
operations as well as expenses associated with the maintenance of the Company's
operating equipment and facilities. These expenses on a consolidated basis
increased 143% in the first three months of 1996 as compared to the first three
months of 1995. This increase primarily reflects increased telephone and system
costs associated with the increasing one-way messaging subscriber base and
operating expenses attributable to the SkyTel 2-Way/TM/ network. As a percentage
of consolidated revenues, operating expenses increased to 36% in the first three
months of 1996 as compared to 24% in the first three months of 1995. Mtel
expects to continue to incur increased operating expenses during 1996 as a
result of the inclusion of operating expenses related to the SkyTel 2-Way/TM/
network for a full year which, because of system design and functionality, have
significantly higher fixed operating expenses than the Company's one-way
operations. In addition, the Company expects to incur increased operating
expenses during 1996 as a result of the continuing expansion of the one-way
messaging subscriber base and the addition of transmission facilities in the
second half of 1996 in certain major metropolitan areas in the United States to
supplement the capacity of the one-way messaging network in the United States.

    Selling, general and administrative expenses include marketing and
advertising costs related  to domestic and international messaging operations,
personnel costs associated with SkyTel's direct 

                                       14
<PAGE>
 
sales and marketing staff and customer support operations and corporate overhead
costs, primarily salaries and administrative expenses. These expenses on a
consolidated basis increased 52% in the first three months of 1996 as compared
to the first three months of 1995. This increase primarily reflects selling
expenses related to the SkyTel 2-Way/TM/ network and additional costs associated
with customer support operations, such as customer service, operator dispatch
billing and collections related to the continuing increase in units in service
on the SkyTel one-way messaging system and the one-way resale efforts of MCI. As
a percentage of consolidated revenues, selling, general and administrative
expenses decreased to 70% in the first three months of 1996 as compared to 73%
in the first three months of 1995. On a consolidated basis, selling, general and
administrative expenses are expected to continue to increase during 1996
primarily as a result of the continuing increase in one-way messaging units in
service and the inclusion of such expenses related to the SkyTel 2-Way/TM/
network for a full year.

    Depreciation and amortization increased 206% in the first three months of
1996 as compared to the first three months of 1995, primarily reflecting
depreciation and amortization of the network infrastructure, spectrum costs and
other capitalized costs related to the SkyTel 2-Way/TM/ network and depreciation
of one-way messaging units in service. As a percentage of revenues, depreciation
and amortization expenses increased to 27% in the first three months of 1996 as
compared to 14% in the first three months of 1995. The Company expects
depreciation and amortization expenses to continue to increase during 1996 as a
result of the inclusion of depreciation and amortization of network
infrastructure, spectrum costs and other capitalized costs related to the SkyTel
2-Way/TM/ network for a full year and the construction of additional 

                                       15
<PAGE>
 
transmission facilities on a third frequency in certain major metropolitan areas
to supplement the Company's one-way messaging capacity.
 
    OPERATING INCOME (LOSS)

    Mtel reported a consolidated operating loss of approximately $26.1 million
for the first three months of 1996 as compared to an operating loss of
approximately $5.3 million for the first three months of 1995.  For the three-
month period ended March 31, 1996, one-way messaging operations recorded
operating income of $13.1 million, which was offset by an operating loss of
$31.6 million from SkyTel 2-Way/TM/ operations and an operating loss of $5.8
million from international operations.

    The Company expects to report operating losses on a consolidated basis
during 1996 and 1997 as a result of the inclusion of operating losses related to
SkyTel 2-Way/TM/ operations for a full year and continuing losses from
international messaging operations. However, the Company expects SkyTel's one-
way messaging business to continue to report operating income in 1996 and
future periods as a result of continued growth in units in service.

   INTEREST INCOME (EXPENSE)

    Interest expense increased 214% in the first three months of 1996 as
compared to the first three months of 1995 primarily due to interest accrued on
borrowings under the Company's bank credit facility established in the fourth
quarter of 1995 and the significant decrease in capitalized interest related to
the development and construction of the SkyTel 2-Way/TM/ network since the
Company ceased capitalizing such interest upon commencement of commercial
operation in September
                                       16
<PAGE>
 
1995 except as described below. As of March 31, 1996, the Company had $95.5
million principal amount outstanding under the bank credit facility. In
accordance with Statement of Financial Accounting Standards ("SFAS") No. 34, the
Company capitalizes interest expense related to equity investments and the
purchase of certain assets which constitute activities preliminary to the
commencement of the investee's or purchaser's planned principal operations. The
Company capitalized approximately $5.9 million and $2.5 million in interest
costs in the first three months of 1995 and 1996, respectively. Capitalized
interest decreased in the first quarter of 1996 as compared to the first quarter
of 1995 since the capitalization of interest related to the development and
construction of the SkyTel 2-Way/TM/ network ceased upon commencement of
commercial operation in September 1995, except for capitalized interest related
to the cost of a PCS license acquired in 1994 that is not currently being
utilized.

       Interest income totaled $1.4 million in the first three months of 1996 as
compared to $4.2 million in the first three months of 1995.  This decrease is
primarily attributable to a decrease in cash available for investment and a
reduction in the aggregate amount of securities restricted for debt service
related to the Senior Notes.

       PROVISION FOR INCOME TAXES

       Mtel recorded a provision for income taxes of $621,000 and $167,000 in
the first three months of 1996 and 1995, respectively, relating to state and
local income taxes. The Company reported net losses for federal income tax
purposes during the three month periods ended March 31, 1996 and 1995 and,
accordingly, no provision for federal income taxes has been made for such
periods.

                                       17
<PAGE>
 
       PREFERRED STOCK DIVIDENDS

       The Company accrued approximately $2.1 million in each of the quarters
ended March 31, 1996 and 1995 which represents dividends on the Company's $2.25
Cumulative Convertible Exchangeable Preferred Stock (the "$2.25 Preferred
Stock").  Although dividends on the $2.25 Preferred Stock are not treated as an
expense on the Company's consolidated statements of operations and, therefore,
do not affect reported net income, such dividends are deducted from net income
for the purpose of determining net income (loss) per common share.  See Note 6
of Notes to Consolidated Financial Statements for information on the issuance of
PIK Preferred Stock.

       NET INCOME (LOSS)

       Mtel recorded a net loss of approximately $28.6 million in the three
month period ended March 31, 1996 which, combined with the effect of the
preferred stock dividends, resulted in a net loss per common share of $0.57 for
such period. This compares to a net loss of approximately $4.0 million, or $0.13
per common share, in the first three months of 1995. The net loss in the first
quarter of 1996 was offset by a gain of approximately $6.6 million from the sale
of a portion of the Company's investment in American Mobile Satellite Corp. The
Company expects to incur net losses during the remainder of 1996 and 1997 as a
result of continuing start-up losses from its SkyTel 2-Way/TM/ and international
operations.

LIQUIDITY AND CAPITAL RESOURCES

       The Company invested $25.9 million in the first quarter of 1996 to
procure messaging units to support SkyTel's increasing one-way messaging
subscriber base and, to a lesser extent, in 

                                       18
<PAGE>
 
connection with the development and expansion of the SkyTel one-way messaging
system. In addition, in the first quarter of 1996, Mtel incurred capital
expenditures for equipment, development costs and construction costs related to
the SkyTel 2-Way/TM/ network of $13.5 million, which related to the Company's
efforts to improve and expand the coverage of the SkyTel 2-Way/TM/ network in
certain major metropolitan areas, continued efforts to optimize and improve the
performance and reliability of the SkyTel 2-Way/TM/ network and the purchase of
two-way personal messaging units. Capital expenditures in the first quarter of
1996 were funded with cash generated from SkyTel's one-way messaging operations,
proceeds from borrowings under SkyTel's bank credit facility and proceeds from
the sale of certain non-strategic assets.

          In December 1995, SkyTel established a $250.0 million secured
revolving credit facility with a syndicate of financial institutions.  As part
of the bank credit facility, SkyTel is also provided with access to letters of
credit in an amount up to $20.0 million.  Borrowings under the credit facility
may be used for capital expenditures, working capital and other general
corporate purposes.

       As a result of higher than projected capital expenditures in the fourth
quarter of 1995, primarily related to the purchase of pagers to support one-way
sales, the purchase of Flex pagers to alleviate capacity constraints of the one-
way network and higher than expected development costs associated with the
SkyTel 2-Way/TM/ network, SkyTel incurred higher than expected borrowings under
its bank credit facility. The capital expenditures and resulting borrowings
caused SkyTel to be in violation of a capital expenditure covenant in its bank
loan agreement as of December 31, 1995 and a leverage maintenance covenant
during the first quarter of 1996, and resulted in a temporary suspension of the
Company's borrowing availability under the bank credit facility. On March 29,
1996, the lending banks waived these covenant violations and agreed to certain

                                       19
<PAGE>
 
amendments to the bank loan agreement to provide additional operational
flexibility under the bank credit facility.

       As a result of the amendment, borrowings under the credit facility
through March 31, 1997 will bear interest at the alternate base rate plus 1 3/4%
or the LIBOR rate plus 2 3/4% through March 31, 1997, an increase of 25 basis
points from the interest rate set forth in the original loan agreement.
Thereafter, the rate of interest on borrowings will return to the level set
forth in the original loan agreement. The amendment requires the Company to
complete the following transactions on or before the dates indicated: (i) on or
before May 15, 1996,  the Company is required to complete the sale of such
number of shares of PIK Preferred Stock as will result in the Company receiving
gross proceeds of at least $50.0 million; (ii) on or before June 30, 1996, the
Company is required to complete its previously planned sale of its 29% equity
interest in MPL, which operates in the United Kingdom, and its previously
planned sale of equity securities of a subsidiary formed for the purpose of
holding the Company's investments in operations in Latin America for certain
minimum proceeds; and (iii) on or before December 31, 1996, the Company is
required to complete its previously planned sale of equity securities of a
subsidiary to be formed for the purpose of holding the Company's investments in
operations in Asia for certain minimum proceeds.  The Company has satisfied the
condition requiring the sale of equity securities of the Company described above
through the sale of PIK Preferred Stock as described below.

       As of March 31, 1996, SkyTel had $95.5 million in borrowings outstanding
under the bank credit facility.  Letters of credit in the amount of $3.4 million
have been issued under the credit facility as of March 31, 1996, and the credit
available under the facility has been reduced by a corresponding amount.

                                       20
<PAGE>
 
       Borrowings under SkyTel's bank credit facility are limited by certain
covenants contained in the indenture relating to the 13.5% Senior Notes due 2002
(the "Senior Notes"), which limit the total indebtedness that may be incurred by
the Company based in part on the number of one-way and two-way messaging units
placed in service since September 30, 1994.  As of March 31, 1996, the Company
had additional allowable indebtedness as defined in the indenture of
approximately $16.4 million, which will increase to $21.3 million as of May 15,
1996.  The Company intends to solicit the consent of the holders of the Senior
Notes in 1996 to amend certain covenants which, if approved, would, among other
things, result in an increase of the total indebtedness authorized under the
indenture.  If such consents are not obtained or are delayed, the Company's
ability to borrow under SkyTel's bank credit facility could be limited.  Any
amendment to the indenture relating to the Senior Notes will required the
consent of the lending banks.

       In April and May of 1996, the Company sold an aggregate of 52,500 shares
of PIK Preferred Stock for an aggregate purchase price of $52.5 million to
certain investors, including Microsoft Corporation, Kleiner Perkins Caufield &
Byers and certain executive officers and directors of the Company, including
John N. Palmer, Chairman of the Board and Acting Chief Executive Officer. The
proceeds from the sale of the PIK Preferred Stock will be used for general
corporate purposes including the continued development and optimization of the
SkyTel 2-Way/TM/ network. Holders of the PIK Preferred Stock will be entitled to
receive dividends out of funds legally available therefor at an annual rate of
7.5% (or $75 per share of PIK Preferred Stock), payable quarterly on each March
15, June 15, September 15 and December 15. The Company will have the option,
however, to pay dividends on the PIK Preferred Stock through the later of the
fifth anniversary of the date of issuance or until cash dividends are permitted
under the Company's bank

                                       21
<PAGE>
 
credit facility and the indenture relating to the Senior Notes in the form of
additional shares of PIK Preferred Stock. Dividends on the PIK Preferred Stock
will be cumulative and will accrue from the date of original issue.

       The PIK Preferred Stock will rank junior in right of payment to the
Company's outstanding $2.25 Preferred Stock.  In the event of any liquidation,
dissolution or winding up of the Company, holders of PIK Preferred Stock will be
entitled to receive, following payment in full to the holders of the $2.25
Preferred Stock of all amounts to which such holders are entitled, a liquidation
preference in the amount of $1,000 per share of PIK Preferred Stock, plus
accrued and unpaid dividends, before any payment is made or assets are
distributed to holders of Mtel Common Stock or any other class of stock of the
Company ranking junior to the PIK Preferred Stock as to rights upon liquidation,
dissolution or winding up of the Company.  Except as required by law or with
respect to the creation or amendment of senior classes of preferred stock,
holders of PIK Preferred Stock will not have voting rights unless quarterly
dividends on the Company's $2.25 Preferred Stock are in arrears for two
consecutive quarters, in which case, the number of directors of the Company will
be increased by one and the holders of PIK Preferred Stock, voting separately as
a class, will be entitled to elect one director until the dividend arrearage has
been paid.  In the event quarterly dividends on the Company's $2.25 Preferred
Stock are in arrears for four consecutive quarters, the number of directors of
the Company will be increased again by one, and the holders of PIK Preferred
Stock will be entitled to elect an additional director.

       Each share of PIK Preferred Stock will be convertible at the option of
the holder into shares of Mtel Common Stock at conversion prices ranging from
$17.90 per share to $19.09 per share of Mtel Common Stock, subject to adjustment
upon the occurrence of certain events.  

                                       22
<PAGE>
 
Following the second anniversary of the date of issuance of the PIK Preferred
Stock, the Company may redeem, in whole or in part, the outstanding PIK
Preferred Stock at a price of $1,000 per share plus accrued and unpaid
dividends. The bank credit facility, as amended, and the indenture relating to
the Senior Notes prohibit the voluntary redemption of the PIK Preferred Stock.
Commencing on the seventh anniversary of the date of issuance of the PIK
Preferred Stock and continuing through the tenth anniversary thereof, the
Company must redeem 7,500 shares of PIK Preferred Stock at a price of $1,000 per
share, along with accrued and unpaid dividends thereon.

       Although the Company believes that the sources of capital described above
will be sufficient to meet projected capital expenditures through 1997, the
Company may be required to engage in other financings, the timing, nature,
amount and source of which cannot be determined. Factors that may affect the
need for additional financing include the Company's operating results, its
borrowing availability under the bank credit facility and the indenture relating
to the Senior Notes, the successful completion of sales of equity securities in
subsidiaries formed for the purpose of holding the Company's investments in
operations in Latin America and Asia and sales of certain non-strategic assets.

                                       23
<PAGE>
 
                          PART II.  OTHER INFORMATION

Item 1.  Legal Proceedings
         -----------------
            None.
Item 2.  Changes in Securities
         ---------------------

            During April and May 1996, the Company issued 52,500 of PIK
Preferred Stock for an aggregate consideration of $52.5 million. The PIK
Preferred Stock ranks junior to the Company's outstanding $2.25 Preferred Stock
in terms of rights to receive cash dividends and upon a liquidation of the
Company. The PIK Preferred Stock ranks senior to the Common Stock in right of
payment of cash dividends and upon a liquidation of the Company. As a result,
the holders of Common Stock may not receive any dividends in respect thereof
until all accrued and unpaid dividends on the PIK Preferred Stock and the $2.25
Preferred Stock have been paid in full. Furthermore, no amounts can be paid to
the holders of Common Stock upon a liquidation of the Company until the
liquidation preference of $1,000 per share to which the holders of the PIK
Preferred Stock and the $2.25 Preferred Stock are entitled has been paid in
full. 

Item 3.  Defaults upon Senior Securities

         -------------------------------
            None.
Item 4.  Submission of Matters to a Vote of Security Holders
         ---------------------------------------------------
            None.
Item 5.  Other Information
         -----------------
            None.
Item 6.  Exhibits and Reports on Form 8-K
         --------------------------------

(a)  Exhibits

     The following Exhibits are filed as part of this Quarterly Report on Form 
10-Q:

<TABLE> 
<CAPTION> 
EXHIBIT NO.                   DESCRIPTION                            
<S>          <C>                                                     
   4.1       Certificate of Designation relating to the Series A
             7.5% Cumulative Convertible Accruing Pay-In-Kind
             Preferred Stock

   4.2       Certificate of Designation relating to the Series B
             7.5% Cumulative Convertible Accruing Pay-In-Kind
             Preferred Stock

   4.3       Certificate of Designation relating to the Series C
             7.5% Cumulative Convertible Accruing Pay-In-Kind
             Preferred Stock

  10.1       Form of Stock Purchase Agreement relating to the
             Sale of the Series A, Series B and Series C 7.5% 
             Cumulative Convertible Accruing Pay-In-Kind
             Preferred Stock

  10.2       Stockholder Agreement dated as of March 29, 1996 
             by and between the Company and Microsoft Corporation

  10.3       Form of Registration Rights Agreement relating to 
             the Series A, Series B and Series C 7.5% Cumulative 
             Convertible Accruing Pay-In-Kind Preferred Stock  
</TABLE> 


(b)  Reports on Form 8-K

     None
                                       24
<PAGE>
 
                                  SIGNATURES

      Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                    MOBILE TELECOMMUNICATION
                                    TECHNOLOGIES CORP.

Dated:  May 14, 1996                By  /s/ John N. Palmer
                                      ------------------------------------------
                                     John N. Palmer
                                     Chairman of the Board
                                     and Acting Chief Executive Officer



Dated:  May 14, 1996                By  /s/ John E. Welsh, III
                                      ------------------------------------------
                                     John E. Welsh, III
                                     Vice Chairman and
                                     Acting Chief Financial Officer

                                       25



                                  CORRECTED
                    CERTIFICATE OF RIGHTS AND PREFERENCES
                                      OF
                   THE SERIES A 7.5% CUMULATIVE CONVERTIBLE
                     ACCRUING PAY-IN-KIND PREFERRED STOCK
                                      OF
                 MOBILE TELECOMMUNICATION TECHNOLOGIES CORP.

                _____________________________________________

                  Pursuant to Section 103(f) of the General
                  Corporation Law of the State of Delaware 
                _____________________________________________

                    MOBILE TELECOMMUNICATION TECHNOLOGIES CORP.
          (the "Company"), a company organized and existing under
          and by virtue of the provisions of the General
          Corporation Law as of the State of Delaware (the "DGCL"),
          certifies as follows:

                    FIRST:    On April 1, 1996, the Company filed
          with the Secretary of State a Certificate of Rights and
          Preferences of Series A 7.5% Cumulative Convertible
          Accruing Pay-In-Kind Preferred Stock (the "Certificate of
          Designations").

                    SECOND:   A reference to "one or more" (in
          place of "a") in the fourth line of the resolution that
          appears in paragraph THIRD of the Certificate of
          Designations was omitted.  A Reference to "the "Series A
          PIK Preferred Stock," together with all other series of
          the Company's 7.5% Cumulative Convertible Accruing Pay-
          In-Kind Preferred Stock," and a reference to "The Series
          A PIK Preferred Stock together with all other series of
          the PIK Preferred Stock will, in the aggregate," (in
          place of "which will") in Section 1 of the Certificate of
          Designations were omitted.

                    THIRD:    A reference to "Series A" was omitted
          on the first line of Section 2, on the 33rd line of
          Section 3(i), on the first line of Section 8(a) and on
          the second line of Section 8(b) of the Certificate of
          Designations.

                    FOURTH:   A reference to "PIK" was omitted on
          the seventh line of the second paragraph of Section 5(d),
          the second line of Section 5(e), the 26th, 30th, 34th and
          37th lines of Section 6(a) and the sixth line of Section
          8(c) of the Certificate of Designations.

                    FIFTH:    A reference to "April 1, 1996" (in
          place of "the date of issuance of the PIK Preferred
          Stock") was omitted on the 28th line of Section 3(i) of
          the Certificate of Designations.

                    SIXTH:    The foregoing corrections were
          prepared in accordance with the provisions of Section
          103(f) of the General Corporation Law of the State of
          Delaware.
                    SEVENTH:  Set forth below is the text of the
          Corrected Certificate of Designation:

                    FIRST:  The Company was incorporated in the
          State of Delaware on October 21, 1988;

                    SECOND:  The Certificate of Incorporation of
          the Company authorizes the issuance of 25,000,000 shares
          of Preferred Stock, par value $.01 per share and,
          further, authorizes the Board of Directors of the Company
          (the "Board of Directors"), by resolution or resolutions,
          at any time and from time to time, to divide and
          establish any or all of the unissued shares of Preferred
          Stock into one or more classes or series, and without
          limiting the generality of the foregoing, to fix and
          determine the designation of each such class or series,
          the number of shares which shall constitute such class or
          series and certain relative rights and preferences of the
          shares of each class or series so established.

                    THIRD:  The Board of Directors of the Company
          pursuant to authority conferred upon the Board of
          Directors under the Restated Certificate of Incorporation
          (the "Certificate of Incorporation") filed with the
          Secretary of State of Delaware on December 27, 1988 and
          at a meeting that was duly called on March 27, 1996, at
          which a quorum was present and acting throughout, did
          duly adopt the following resolutions authorizing the
          issuance of one or more series of the Company's Preferred
          Stock, par value $.01 per share, and setting forth the
          terms and provisions of said Preferred Stock:

               RESOLVED, that the Board of Directors, pursuant
               to authority vested in it by the provisions of
               the Certificate of Incorporation, hereby
               authorizes the creation and issuance of one or
               more series of the Company's Preferred Stock,
               par value $.01 per share, which shall in the
               aggregate consist of up to 130,000 shares of
               the 25,000,000 shares of Preferred Stock that
               the Company now has authority to issue, and
               hereby fixes the powers, designation, dividend
               rate, redemption provisions, voting powers,
               right on liquidation or dissolution, and other
               preferences and relative participating,
               optional or other rights, and the
               qualifications, limitations or restrictions
               thereof (in addition to those set forth in said
               Certificate of Incorporation) as follows:

                    1.  Designation.  The Preferred Stock of the
          Company created and authorized for issuance hereby shall
          be designated as "Series A 7.5% Cumulative Convertible
          Accruing Pay-In-Kind Preferred Stock" (the "Series A PIK
          Preferred Stock," together with all other series of the
          Company's 7.5% Cumulative Convertible Accruing Pay-In-
          Kind Preferred Stock, hereinafter the "PIK Preferred
          Stock").  The Series A PIK Preferred Stock together with
          all other series of the PIK Preferred Stock will, in the
          aggregate, consist of 130,000 shares of such PIK
          Preferred Stock.                    2.  Priority.  The Series A PIK 
          Preferred Stock
          shall, with respect to dividend rights and rights on
          liquidation, winding up or dissolution, whether voluntary
          or involuntary, whether now or hereafter issued, rank (i)
          on parity with any other series of PIK Preferred Stock
          and any other series of Preferred Stock established
          hereafter by the Board of Directors, the terms of which
          shall specifically provide that such series shall rank on
          parity with the PIK Preferred Stock with respect to
          dividend rights and rights on liquidation, winding up or
          dissolution, (all of such series of Preferred Stock to
          which the PIK Preferred Stock ranks on parity are at all
          times collectively referred to as "Parity Securities")
          (ii) junior to the Company's $2.25 Cumulative Convertible
          Exchangeable Preferred Stock (the "Exchangeable Preferred
          Stock") and any other series of Preferred Stock
          established by the Board of Directors, the terms of which
          shall specifically provide that such series shall rank
          senior to the PIK Preferred Stock with respect to
          dividend rights and rights on liquidation, winding up or
          dissolution (all of such series of Preferred Stock to
          which the PIK Preferred Stock ranks junior, including the 
          Exchangeable Preferred Stock, are at times collectively
          referred to herein as the "Senior Securities"), and (iii)
          senior to the Company's Series C Junior Participating
          Preferred Stock, $.01 par value per share (the "Series C
          Preferred Stock"), the Company's Common Stock, $.01 par
          value per share (the "Common Stock"), and, subject to
          clauses (i) and (ii) hereof, any other equity securities
          of the Company, with respect to dividend rights and
          rights on liquidation, winding up or dissolution (all of
          such equity securities of the Company to which the PIK
          Preferred Stock ranks senior, including the Series C
          Preferred Stock and the Common Stock, are at times
          collectively referred to herein as the "Junior
          Securities").  Notwithstanding the foregoing, the Company
          shall not establish, create, authorize or issue any
          shares of Parity Securities (other than additional series
          of PIK Preferred Stock) or Senior Securities nor issue
          any subordinated debt (other than in connection with any
          refinancing, exchange or similar transaction with respect
          to the existing Senior Notes (as defined herein)) without
          the prior written consent of a majority of the holders of
          the PIK Preferred Stock.

                    3.  Dividends.  (i) Holders of shares of PIK
          Preferred Stock shall be entitled to receive out of funds
          legally available for the payment of dividends ("Legally
          Available Funds"), cumulative dividends for each share of
          PIK Preferred Stock in an amount equal to the annual rate
          of 7.5% (or $75 per share per year) accruable quarterly
          on June 15, September 15, December 15 and March 15 (or at
          such additional times and for such interim periods, if
          any, as determined by the Board of Directors) (each of
          such dates being a "Dividend Accrual Date"), except that
          if such date is a Saturday, Sunday or legal holiday then
          such dividend shall be accruable on the next date that is
          not a Saturday, Sunday or legal holiday or which banks in
          the State of New York are permitted to be closed (a
          "Business Day").  Each of such quarterly dividends
          accruals shall be fully cumulative and shall accrue
          (whether or not declared), on a daily basis from the
          first day of the quarterly period in which such dividend          
          may be accruable as provided herein, provided, however,
          that with respect to the first dividend accrual date
          following the issuance of shares of PIK Preferred Stock,
          such dividend shall accrue from the Issuance Date.  All
          accrued but unpaid dividends shall be compounded
          quarterly at a rate equal to an annual rate of 7.5%.  The
          Board of Directors shall declare and pay such accrued
          dividends at such time and to the extent permitted by law
          and the Financing (as hereinafter defined), subject to
          the provisions of paragraph 3(iii) below.  During the
          period commencing on April 1, 1996 (the "Issuance Date")
          and ending on the fifth anniversary of the Issuance Date,
          or such longer period as shall be necessary to comply
          with the terms of the Financing (as defined below),
          dividends may, at the Company's option, be paid in shares
          of Series A PIK Preferred Stock.  No fractional shares of
          PIK Preferred Stock shall be issued, so that the number
          of shares to be paid as a dividend pursuant to this
          paragraph shall be rounded to the nearest whole number of
          shares.  Such dividends shall be paid to the holders of
          record at the close of business on the date specified by
          the Board of Directors of the Company at the time such
          dividend is declared; provided, however, that such
          declaration date shall not be more than 60 days nor less
          than 10 days prior to the respective Dividend Payment
          Date. 

                    For the purposes of this Certificate of
          Designation the "Financing" shall mean (i) the Credit,
          Security, Guaranty and Pledge Agreement, dated as of
          December 21, 1995 among Skytel Corp., the Company and
          certain subsidiaries thereof, certain lenders, Chemical
          Bank, Credit Lyonnais New York Branch, and J.P. Morgan
          Securities Inc. as amended, and (ii) the Company's 131/2%
          Senior Notes due 2002 (the "Senior Notes").

                         (ii)  All dividends paid with respect to
          shares of the PIK Preferred Stock pursuant to section
          3(i) shall be paid pro rata to the holders entitled
          thereto.  All dividends paid in additional shares of PIK
          Preferred Stock shall be deemed issued on the applicable
          Dividend Payment Date, and will thereupon be duly
          authorized, validly issued, fully paid and nonassessable
          and free and clear of all liens and charges.

                         (iii)  Notwithstanding anything contained
          herein to the contrary, no cash dividends on shares of
          PIK Preferred Stock shall be declared by the Board of
          Directors or paid or set apart for payment by the Company
          at such time as the terms and provisions of the Financing
          specifically prohibit such declaration, payment or
          setting apart for payment or provide that such
          declaration, payment or setting apart for payment would
          (or, with notice or lapse of time or both, would)
          constitute a breach thereof or a default thereunder.

                         (iv)  If at any time the Company shall
          have failed to pay all dividends which have accrued on
          any outstanding shares of Senior Securities or any Parity
          Securities at the times such dividends are payable,
          unless otherwise provided in the terms of the Senior
          Securities or the Parity Securities, no cash or stock
          dividend shall be declared by the Board of Directors or          
paid or set apart for payment by the Company on shares of
          PIK Preferred Stock unless prior to or concurrently with
          such declaration, payment or setting apart for payment,
          all accrued and unpaid dividends on all outstanding
          shares of such Senior Securities and Parity Securities
          shall have been  declared, paid or set apart for payment,
          without interest; provided, however, that in the event
          such failure to pay accrued dividends is with respect
          only to the outstanding shares of PIK Preferred Stock and
          any outstanding shares of any Parity Securities, cash or
          stock dividends may be declared, paid or set apart for
          payment, without interest, pro rata on shares of PIK
          Preferred Stock and shares of such other series of
          Preferred Stock so that the amounts of any dividends
          declared, paid or set apart for payment (whether in cash
          or additional securities) on shares of PIK Preferred
          Stock and shares of such other series of Preferred Stock
          shall in all cases bear to each other the same ratio
          that, at the time of such declaration, payment or setting
          apart for payment, the amounts of all accrued but unpaid
          dividends on shares of the PIK Preferred Stock and shares
          of Parity Securities bear to each other.  Any dividend
          not paid pursuant to section 3(i) hereof or this section
          3(iv) shall be fully cumulative and shall accrue (whether
          or not declared), without interest, as set forth in
          section 3(i) hereof, even if such dividend is not paid
          pursuant to section 3(iii).

                         (v)  (a)  Holders of shares of PIK
          Preferred Stock shall be entitled to receive the
          dividends provided for in section 3(i) hereof in
          preference to and in priority over any dividends upon any
          of the Junior Securities.

                              (b)  So long as any shares of PIK
          Preferred Stock are outstanding, the Company shall not
          declare, pay or set apart for payment any dividend on any
          of the Junior Securities or make any payment on account
          of, or set apart for payment money for a sinking or other
          similar fund for, the purchase, redemption, retirement or
          other acquisition of, or otherwise acquire for value, any
          of the Junior Securities or any warrants, rights, calls
          or options exercisable for any of the Junior Securities,
          or make any distribution in respect thereof, either
          directly or indirectly, whether in cash, obligations or
          shares of the Company or other property (other than
          distributions or dividends payable solely in the same
          Junior Securities to the holders of such stock), and
          shall not permit any company or other entity directly or
          indirectly controlled by the Company to purchase or
          redeem any of the Junior Securities or any warrants,
          rights, calls or options exercisable for any of the
          Junior Securities, unless prior to or concurrently with
          such declaration, payment, setting apart for payment,
          purchase or distribution, as the case may be, all accrued
          and unpaid dividends, if any, on shares of PIK Preferred
          Stock not paid on the dates provided for in section 3(i)
          hereof (including if not paid pursuant to the terms and
          conditions of section 3(iii) or section 3(iv) hereof)
          shall have been paid.

                              (c)  Subject to the foregoing
          provisions of this section 3, the Board of Directors may         
          declare and the Company may pay or set apart for payment
          dividends and other distributions on any of the Junior
          Securities, and may purchase or otherwise redeem any of
          the Junior Securities or any warrants, rights or options
          exercisable for any of the Junior Securities, and the
          holders of the shares of PIK Preferred Stock shall not be
          entitled to share therein.

                    4.  Liquidation Preference.  (i) In the event
          of any voluntary or involuntary liquidation, dissolution
          or winding up of the affairs of the Company, the holders
          of shares of PIK Preferred Stock then outstanding shall
          be entitled to be paid out of the assets of the Company
          available for distribution to its stockholders an amount
          in cash equal to $1,000 for each share outstanding, plus
          an amount in cash equal to all accrued but unpaid
          dividends thereon to the date fixed for liquidation,
          before any payment shall be made or any assets
          distributed to the holders of any of the Junior
          Securities; provided, however, that the holders of
          outstanding shares of PIK Preferred Stock shall not be
          entitled to receive such liquidation payment until the
          liquidation payments on all outstanding shares of Senior
          Securities shall have been paid in full.  No full
          preferential payment on account of any liquidation,
          dissolution or winding up of the Company, whether
          voluntary or involuntary, shall be made to the holders of
          any class of Parity Securities unless there shall
          likewise be paid at the same time to holders of PIK
          Preferred Stock the full amounts to which such holders
          are entitled with respect to such distribution.  If the
          assets of the Company are not sufficient to pay in full
          the liquidation payments payable to the holders of
          outstanding shares of PIK Preferred Stock and outstanding
          shares of Parity Securities, then the holders of all such
          shares shall share ratably in such distribution of assets
          in accordance with the full respective preferential
          amounts that would be payable on such shares of PIK
          Preferred Stock and such shares of Parity Securities if
          all amounts payable thereon were paid in full.

                         (ii)  For the purposes of this section 4,
          (x) the voluntary sale, conveyance, exchange or transfer
          (for cash, shares of stock, securities or other
          consideration) of all or substantially all of the
          property or assets of the Company or (y) the
          consolidation or merger of the Company with one or more
          other companies or entities shall not be deemed to be a
          liquidation, dissolution or winding up, voluntary or
          involuntary.

                    5.  Redemption.

                         (a)  Mandatory Redemptions.  To the extent
          permitted by law and the Financing, as mandatory
          redemptions for the retirement of the shares of PIK
          Preferred Stock, the Company shall redeem, out of Legally
          Available Funds (if such shares remain outstanding) on
          each of the seventh, eighth and ninth anniversaries of
          the Issuance Date (each a "Mandatory Redemption Date"),
          twenty-five percent (25%) of the shares of PIK Preferred
          Stock initially issued and then outstanding, in each case
          at the redemption price of $1,000 for each share          
          outstanding, plus an amount in cash equal to all accrued
          but unpaid dividends to the Mandatory Redemption Date. 
          Immediately prior to authorizing or making such
          redemption with respect to the PIK Preferred Stock, the
          Company, by resolution of its Board of Directors shall,
          to the extent of any Legally Available Funds, declare a
          dividend on the PIK Preferred Stock payable on the
          Mandatory Redemption Date in an amount equal to any
          accrued and unpaid dividends on the PIK Preferred Stock
          as of such date and, if the Company does not have
          sufficient Legally Available Funds to declare and pay all
          dividends accrued at the time of such redemption, any
          remaining accrued and unpaid dividends shall be added to
          the redemption price.  If the Company shall fail to
          discharge its obligation to redeem the aforementioned
          outstanding shares of PIK Preferred Stock required to be
          redeemed pursuant to this section 5(a) (the "Mandatory
          Redemption Obligation"), the Mandatory Redemption
          Obligation shall be discharged as soon as the Company is
          able to discharge such Mandatory Redemption Obligation. 
          If and so long as the Mandatory Redemption Obligation
          shall not be fully discharged, (i) dividends on such PIK
          Preferred Stock shall continue to accrue and be added to
          the dividend payable pursuant to the second preceding
          sentence and (ii) the Company shall not declare or pay
          any dividend or make any distribution on its securities
          not otherwise permitted by this certificate.  If on any
          Mandatory Redemption Date less than 18,750 shares of PIK
          Preferred Stock remain outstanding, the Mandatory
          Redemption Obligation shall apply only to such lesser
          number of shares of PIK Preferred Stock then outstanding,
          and such obligation shall be discharged when such lesser
          number of shares is redeemed in accordance with this
          section 5(a).

                         (b)  Final Mandatory Redemption.  (i) To
          the extent permitted by law and the Financing, as a final
          mandatory redemption for the retirement of the shares of
          PIK Preferred Stock, the Company shall redeem, out of
          Legally Available Funds (if such shares remain
          outstanding) on April 1, 2006 (the "Final Mandatory
          Redemption Date"), all remaining shares of PIK Preferred
          Stock then outstanding, at the redemption price of $1,000
          for each share outstanding, plus an amount in cash equal
          to all accrued but unpaid dividends thereon to the Final
          Mandatory Redemption Date.  Immediately prior to
          authorizing or making such redemption with respect to the
          PIK Preferred Stock, the Company, by resolution of its
          Board of Directors shall, to the extent of any Legally
          Available Funds, declare a dividend on the PIK Preferred
          Stock payable on the Final Mandatory Redemption Date in
          an amount equal to any accrued and unpaid dividends on
          the PIK Preferred Stock as of such date and, if the
          Company does not have sufficient Legally Available Funds
          to declare and pay all dividends accrued at the time of
          such redemption, any remaining accrued and unpaid
          dividends shall be added to the redemption price.  If the
          Company  shall fail to discharge its obligation to redeem
          all of the outstanding shares of PIK Preferred Stock
          required to be redeemed pursuant to this section 5(b)
          (the "Final Mandatory Redemption Obligation"), the Final
          Mandatory Redemption Obligation shall be discharged as
          soon as the Company is able to discharge such Final          
          Mandatory Redemption Obligation.  If and so long as the
          Final Mandatory Redemption Obligation shall not be fully
          discharged, (x) dividends on the PIK Preferred Stock
          shall continue to accrue and be added to the dividend
          payable pursuant to the second preceding sentence and (y)
          the Company shall not declare or pay any dividend or make
          any distribution on its securities not otherwise
          permitted by this certificate.

                    (ii) The Company may, at it option, make any
          mandatory redemption payment required pursuant to clauses
          (a) and (b)(i) of this Section 5 in shares of Common
          Stock in lieu of cash.  In the event that the Company
          elects to make any such payment in Common Stock, on the
          Redemption Date, in lieu of cash, each holder shall
          receive that number of shares (rounded to the nearest
          whole share) of Common Stock determined by dividing (i)
          the aggregate amount of cash that such holder would
          otherwise have received (including with respect to
          accrued and unpaid dividends) pursuant to such redemption
          by (ii) the average Closing Price of the Common Stock for
          the twenty consecutive Trading Days immediately preceding
          the Mandatory Redemption Date or the Final Redemption
          Date, as the case may be.

                         (c)  Optional Redemption.  To the extent
          permitted by law and the Financing, the PIK Preferred
          Stock shall be redeemable at any time, or from time to
          time, in whole or in part, out of Legally Available
          Funds, at the option of the Company, on any date after
          (i) the second anniversary of the Issuance Date (a
          "Regular Optional Redemption Date") or (ii) the first
          anniversary of, but prior to the second anniversary of,
          the Issuance Date (an "Accelerated Optional Redemption
          Date", and together with a Regular Optional Redemption
          Date, an "Optional Redemption Date"); provided, however,
          that no redemption shall be made under clause (ii) unless
          the average Closing Price (as defined in section 8) of
          the Common Stock for any period of twenty consecutive
          Trading Days (as defined in section 6), prior to any such
          redemption, equals or exceeds 175% of the Conversion
          Price (as determined in accordance with section 8). 
          Optional redemptions shall be made, upon giving notice as
          provided in clause (d) below, at the redemption price of
          $1,000 for each share outstanding, plus an amount in cash
          equal to all accrued but unpaid dividends thereon to the
          Optional Redemption Date.  Immediately prior to
          authorizing or making any such redemption with respect to
          the PIK Preferred Stock, and as a condition precedent to
          the Company so redeeming at its option, in whole or in
          part, shares of the PIK Preferred Stock, the Company, by
          resolution of its Board of Directors shall, to the extent
          of any Legally Available Funds, declare a dividend on the
          PIK Preferred Stock payable on the Optional Redemption
          Date in an amount equal to any accrued and unpaid
          dividends on the PIK Preferred Stock as of such date and
          if the Company does not have sufficient Legally Available
          Funds to declare and pay all dividends accrued to the
          Optional Redemption Date, any remaining accrued and
          unpaid dividends shall be added to the redemption price.

                         (d)  Notice of Redemption.  For the
          purposes of this section 5(d), a Mandatory Redemption         
          Date, a Final Mandatory Redemption Date, a Regular
          Optional Redemption Date and an Accelerated Optional
          Redemption Date are hereinafter collectively referred to
          as a "Redemption Date").  In the event the Company shall
          redeem shares of PIK Preferred Stock pursuant to any of
          clauses (a), (b) or (c) above, a notice of such
          redemption shall be given by first-class mail, postage
          prepaid, mailed not less than 20 nor more than 60 days
          prior to the Redemption Date, to each holder of record of
          the shares to be redeemed, at such holder's address as
          the same appears on the stock books of the Company's
          transfer agent.  Each such notice shall state:  (i) the
          Redemption Date; (ii) the number of shares of PIK
          Preferred Stock to be redeemed and, if less than all the
          shares held by such holder are to be redeemed, the number
          of such shares to be redeemed from such holder; (iii) the
          redemption price and the form in which such redemption
          price will be paid (cash or shares of Common Stock); (iv)
          the place or places where certificates for such shares
          are to be surrendered for payment of the redemption
          price; (v) that payment will be made upon presentation
          and surrender of such PIK Preferred Stock; (vi) the then
          current Conversion Price; (vii) that dividends on the
          shares to be redeemed shall cease to accrue following
          such Redemption Date; (viii) that such redemption is at
          the option of the Company or that such redemption is a
          mandatory redemption or a final redemption; and (ix) that
          accrued and unpaid dividends up to and including the
          Redemption Date will be paid in accordance with the terms
          herein.  Notice having been mailed as aforesaid, on and
          after the Redemption Date, unless the Company shall be in
          default in providing money for the payment of the
          redemption price (including an amount equal to any
          accrued and unpaid dividends up to and including the
          Redemption Date), (x) dividends on the shares of the PIK
          Preferred Stock so called for redemption shall cease to
          accrue, (y) said shares shall be deemed no longer
          outstanding, and (z) all rights of the holders thereof as
          stockholders of the Company (except the right to receive
          from the Company the monies payable upon redemption,
          without interest thereon, upon surrender of the
          certificates evidencing such shares) shall cease.  The
          Company's obligation to provide monies in accordance with
          the preceding sentence shall be deemed fulfilled if, on
          or before the Redemption Date, the Company shall deposit
          with a bank or trust company having an office or agency
          in the Borough of Manhattan, City of New York, and having
          a capital and surplus of at least $500,000,000, the
          principal amount of funds necessary for such redemption,
          in trust for the account of the holders of the shares to
          be redeemed (and so as to be and continue to be available
          therefor), with irrevocable instructions and authority to
          such bank or trust company that such funds be applied to
          the redemption of the shares of PIK Preferred Stock so
          called for redemption.  Any interest accrued on such
          funds shall be paid to the Company from time to time. 
          Any funds so deposited and unclaimed at the end of three
          years from such Redemption Date shall be released or
          repaid to the Company, after which, subject to any
          applicable laws relating to escheat or unclaimed
          property, the holder or holders of such shares of PIK
          Preferred Stock so called for redemption shall look only
          to the Company for payment of the redemption price.
                    
     
          Upon surrender in accordance with said
          notice of the certificates for any such shares so
          redeemed (properly endorsed or assigned for transfer, if
          the Board of Directors shall so require and the notice
          shall so state), such shares shall be redeemed by the
          Company at the applicable redemption price aforesaid.  If
          fewer than all the outstanding shares of PIK Preferred
          Stock are to be redeemed, shares to be redeemed shall be
          selected by the Company from outstanding shares of PIK
          Preferred Stock not previously called for redemption by
          lot or pro rata or by any other equitable method
          determined by the Board of Directors in its sole
          discretion.  If fewer than all the shares represented by
          any certificate are redeemed, a new certificate shall be
          issued representing the unredeemed shares without cost to
          the holder thereof.  In the event that the Company elects
          to make any Mandatory Redemption or the Final Redemption
          in shares at Common Stock, upon such surrender,
          accompanied by written instructions to the Company
          specifying the name and address of the person,
          corporation, firm or other entity to whom such shares of
          Common Stock are to be issued, the Company shall issue
          the number of full shares rounded to the nearest whole
          number issuable upon the redemption thereof as of the
          time of such surrender and as promptly as practicable
          thereafter will deliver certificates for such shares of
          Common Stock.  No fractional shares will be issued
          pursuant to this Section 5.  The Company, to the extent
          required, shall authorize, free of preemptive rights,
          such number of duly authorized shares of Common Stock as
          shall be required to effect the redemption.

                    Notwithstanding the foregoing, if the Company's
          notice of redemption has been given pursuant to this
          Section 5 and any holder of shares of PIK Preferred Stock
          shall, prior to the close of business on the third
          Business Day preceding the Redemption Date, give written
          notice to the Company pursuant to this Section 5(d)
          hereof of the conversion of any or all of the shares to
          be redeemed held by such holder (accompanied by a
          certificate or certificates for such shares, duly
          endorsed or assigned to the Company), then the conversion
          of such shares to be redeemed shall become effective as
          provided in Section 8.  In the event that such redemption
          was pursuant to a Mandatory Redemption, any shares so
          converted shall, at the option of the Company, be counted
          as shares required to be redeemed pursuant to such
          Mandatory Redemption.

                         (e)  The election by the Company to redeem
          shares of PIK Preferred Stock pursuant to this Section 5
          hereof shall become irrevocable only on the relevant
          Optional Redemption Date.

                    6.  Redemption Upon a Change of Control.  (a) 
          Upon the occurrence of a Change of Control (as defined
          below), the Company shall make an offer (the "Change of
          Control Offer") to each holder of PIK Preferred Stock to
          repurchase all or any part of such holder's PIK Preferred
          Stock at a purchase price equal to $1,000 per share, plus
          an amount equal to accrued and unpaid dividends to the
          date of redemption (the "Change of Control Redemption
          Date"); provided, however, that no Change of Control         
          Offer shall be made, pursuant to this section 6, until
          such time as an offer to repurchase the Senior Notes upon
          a "Change of Control" (as defined therein) on the terms
          and conditions set forth in such Senior Notes and in the
          indenture pursuant to which they were issued (the
          "Indenture") shall have been made to the holders of the
          Senior Notes, and such offer shall have been completed
          and payment in full to the holders of such Senior Notes
          shall have been paid, in accordance with the terms of the
          Senior Notes and the Indenture.  No additional dividends
          shall be accrued or be paid after the Change of Control
          Redemption Date on shares of PIK Preferred Stock tendered
          and redeemed pursuant to the Change of Control Offer. 
          Within thirty (30) days following a Change of Control,
          the Company shall mail a notice to each holder stating: 
          (1) that the Change of Control Offer is being made
          pursuant to this Section 6 and that all shares of PIK
          Preferred Stock tendered will be accepted for payment;
          (2) the purchase price and the Change of Control
          Redemption Date, which shall be no earlier than 30 days
          nor later than 40 days from the date such notice is
          mailed; (3) that any shares of PIK Preferred Stock not
          tendered will continue to accrue dividends in accordance
          with the terms of Section 3; (4) that, unless the Company
          defaults in the payment of the redemption price, all
          shares of PIK Preferred Stock redeemed pursuant to the
          Change of Control Offer shall cease to accrue dividends
          after the Change of Control Redemption Date; (5) that
          holders electing to have any shares of PIK Preferred
          Stock redeemed pursuant to the Change of Control Offer
          will be required to surrender the certificates
          representing such shares; (6) that holders will be
          entitled to withdraw their election if the Company's
          transfer agent receives, not later than the close of
          business on the second Business Day preceding the Change
          of Control Redemption Date, a telegram, telex, facsimile
          transmission or letter setting forth the name of the
          holder, the number of shares delivered for redemption,
          and a statement that such holder is withdrawing his
          election to have such shares redeemed; and (7) that
          holders whose shares are being redeemed only in part will
          be issued new certificates representing shares not
          redeemed by the Company.

                         (b)  On the Change of Control Redemption
          Date, the Company shall, to the extent lawful, (i) accept
          for redemption shares tendered pursuant to the Change of
          Control Offer, (ii) deposit with a bank or trust company
          having an office or agency in the Borough of Manhattan,
          City of New York, and having a capital and surplus of at
          least $500,000,000, an amount equal to the purchase price
          in respect of all shares so tendered, in trust for the
          account of the holders of the shares to be redeemed (and
          so as to be and continue to be available therefor), with
          irrevocable instructions and authority to such bank or
          trust company that such funds be applied to the
          redemption of the shares of PIK Preferred Stock tendered
          pursuant to the Change of Control Offer.  The Company's
          transfer agent shall promptly mail to each holder a
          certificate representing shares surrendered but not
          tendered and not redeemed in accordance with such
          holder's instructions, if any. 
                         (c)  The redemption option of the holder
          of PIK Preferred Stock upon a Change of Control pursuant
          to this Section 6 may constitute an "issuer tender offer"
          as defined in Rule 13e-4 under the Securities Exchange
          Act of 1934, as amended (the "Exchange Act"), and in such
          event such transaction may be subject to the requirements
          of Rule 13e-4, including the filing of an Issuer Tender
          Offer Statement on Schedule 13E-4 with the Securities and
          Exchange Commission and the furnishing of certain
          information contained therein to such holder.  If such a
          Change of Control occurs, (i) the Company will comply
          with all appropriate rules and regulations applicable to
          "issuer tender offers" at such time and (ii) each holder
          of PIK Preferred Stock will be entitled to withdraw the
          notice of redemption given hereunder throughout the
          "issuer tender offer."  Upon the expiration date of the
          "issuer tender offer," such notice shall be irrevocable
          and shall terminate all conversion rights with respect to
          the PIK Preferred Stock to be redeemed under this Section
          6.  The Company shall comply with the requirements of
          Rule 14e-1 under the Exchange Act and any other
          securities laws and regulations thereunder to the extent
          such laws and regulations are applicable in connection
          with the redemption of shares in connection with a Change
          of Control.

               (d)  "Change of Control" means the occurrence of any
          of the following events:

                         (i)  any Person (as such term is used in
          Sections 13(d) and 14(d) of the Exchange Act), is or
          becomes the Beneficial Owner, directly or indirectly, of
          more than 50% of the total Voting Stock or Total Common
          Equity of the Company; provided, that no Change of
          Control will be deemed to occur pursuant to this clause
          (a) if (x) the Person is a corporation with outstanding
          debt securities having a maturity at original issuance of
          at least one year and if such debt securities are rated
          Investment Grade by S&P or Moody's for a period of at
          least 90 consecutive days, beginning on the date of such
          event (which period will be extended up to 90 additional
          days for as long as the rating of such debt securities is
          under publicly announced consideration for possible
          downgrading by the applicable rating agency), or (y) the
          Person is a corporation (1) that is not, and does not
          have any outstanding debt securities that are, rated by
          S&P, Moody's or any other rating agency of national
          standing at any time during a period of 90 consecutive
          days beginning on the date of such event (which period
          will be extended up to an additional 90 days for as long
          as any such rating agency has publicly announced that
          such corporation or debt thereof will be rated), unless
          after such date but during such period debt securities of
          such corporation having a maturity at original issuance
          of at least one year are rated Investment Grade by S&P or
          Moody's and remain so rated for the remainder of the
          period referred to in clause (x) above and (2) that, when
          determined as of the Trading Day immediately before and
          the Trading Day immediately after the date of such event,
          has Total Common Equity of at least $5.0 billion
          (provided that, solely for the purpose of calculating
          Total Common Equity as of such later Trading Day, the
          average Closing Price of Common Stock of such Person will          
          be deemed to equal the Closing Price of such Common Stock
          on such later Trading Day, subject to the last sentence
          of the definition of "Total Common Equity");

                         (ii)  the Company consolidates with, or
          merges with or into, another Person or sells, assigns,
          conveys, transfers, leases or otherwise disposes of all
          or substantially all of its assets to any Person, or any
          Person consolidates with, or merges with or into, the
          Company, in any such event pursuant to a transaction in
          which the outstanding Voting Stock of the Company is
          converted into or exchanged for cash, securities or other
          property, other than any such transaction where (i) the
          outstanding Voting Stock of the Company is converted into
          or exchanged for (1) Voting Stock (other than
          Disqualified Stock) of the surviving or transferee Person
          or (2) cash, securities and other property in an amount
          which could be paid by the Company as a Restricted
          Payment (as such term is defined in Section 4.07 of the
          Indenture) and (ii) immediately after such transaction no
          Person (as such term is used in Sections 13(d) and 14(d)
          of the Exchange Act), is the Beneficial Owner, directly
          or indirectly, of more than 50% of the total Voting Stock
          or Total Common Equity of the surviving or transferee
          Person; provided, that no Change of Control will be
          deemed to occur pursuant to this clause (d) if (x) the
          surviving or transferee Person or the Person referred to
          in clause (d)(ii)(2) is a corporation with outstanding
          debt securities having a maturity at original issuance of
          at least one year and if such debt securities are rated
          Investment Grade by S&P or Moody's for a period of at
          least 90 consecutive days, beginning on the date of such
          event (which period will be extended up to 90 additional
          days for as long as the rating of such debt securities is
          under publicly announced consideration for possible
          downgrading by the applicable rating agency), or (y) the
          surviving or transferee Person or such other Person is a
          corporation (1) that is not, and does not have any
          outstanding debt securities that are, rated by S&P,
          Moody's or any other rating agency of national standing
          at any time during a period of 90 consecutive days
          beginning on the date of such event (which period will be
          extended up to an additional 90 days for as long as any
          such rating agency has publicly announced that such
          corporation or debt thereof will be rated), unless after
          such date but during such period debt securities of such
          corporation having a maturity at original issuance of at
          least one year are rated Investment Grade by S&P or
          Moody's and remain so rated for the remainder of the
          period referred to in clause (x) above and (2) that, when
          determined as of the Trading Day immediately before and
          the Trading Day immediately after the date of such event,
          has Total Common Equity of at least $5.0 billion
          (provided that, solely for the purpose of calculating
          Total Common Equity as of such later Trading Day, the
          average Closing Price of the Common Stock of such Person
          will be deemed to equal the Closing Price of such Common
          Stock on such later Trading Day, subject to the last
          sentence of the definition of "Total Common Equity"); or

                         (iii)  during any consecutive two-year
          period, individuals who at the beginning of such period
          constituted the Board of Directors of the Company
          (together with any directors who are members of the Board
          of Directors on the date hereof and any new directors
          whose election by such Board of Directors or whose
          nomination for election by the stockholders of the
          Company was approved by a vote of 66 2/3% of the
          directors then still in office who were either directors
          at the beginning of such period or whose election or
          nomination for election was previously so approved) cease
          for any reason to constitute a majority of the Board of
          Directors of the Company then in office.

                    Any event that would constitute a Change of
          Control pursuant to clause (i) or (ii) above but for the
          proviso thereto will not be deemed to be a Change of
          Control until such time (if any) as the conditions
          described in such proviso cease to have been met.

               (e)  For the purposes of this Section 6 the
          following terms are defined as follows:

                    (i)  "Beneficial Owner" means a beneficial
          owner as defined in Rules 13d-3 and 13d-5 under the
          Exchange Act (or any successor rules), including the
          provision of such rules that a Person shall be deemed to
          have beneficial ownership of all securities that such
          Person has a right to acquire within 60 days of the date
          of determination of beneficial ownership of such
          security; provided that a Person will not be deemed a
          beneficial owner of, or to own beneficially, any
          securities if such beneficial ownership (1) arises solely
          as a result of a revocable proxy delivered in response to
          a proxy or consent solicitation made pursuant to, and in
          accordance with, the Exchange Act and (2) is not also
          then reportable on Schedule 13D (or any successor
          schedule) under the Exchange Act.

                    (ii)  "Business Day" means any day other than a
          Saturday, a Sunday or a day on which banking institutions
          in the City of New York or at a place of payment are
          authorized by law, regulation or executive order to
          remain closed.

                    (iii)  "Capital Stock" means (i) in the case of
          a corporation, corporate stock, (ii) in the case of an
          association or other business entity, any and all shares,
          interests, participations, rights or other equivalents
          (however designated) of corporate stock and (iii) in the
          case of a partnership, partnership interests (whether
          general or limited) and any other interest or
          participation that confers on a Person the right to
          receive a share of the profits and losses of, or
          distributions of assets of, such partnership.

                    (iv)  "Common Stock" of any Person means
          Capital Stock of such Person that does not rank prior, as
          to the payment of dividends or as to the distribution of
          assets upon any voluntary or involuntary liquidation,
          dissolution or winding up of such Person, to shares of
          Capital Stock of any other class of such Person.

                    (v)  "Closing Price" on any Trading Day with
          respect to the per share price of any shares of Capital
          Stock means the last reported sale price regular way or,         
 in case no such reported sale takes place on such day,
          the average of the reported closing bid and asked prices
          regular way, in either case on the New York Stock
          Exchange or, if such shares of Capital Stock are not
          listed or admitted to trading on such exchange, on the
          principal national securities exchange on which such
          shares are listed or admitted to trading or, if not
          listed or admitted to trading on any national securities
          exchange, on the Nasdaq National Market or, if such
          shares are not listed or admitted to trading on any
          national securities exchange or quoted on Nasdaq but the
          issuer is a Foreign Issuer (as defined in Rule 3b-4(b)
          under the Exchange Act) and the principal securities
          exchange on which such shares are listed or admitted to
          trading is a Designated Offshore Securities Market (as
          defined in Rule 902(a) under the Securities Act), the
          average of the reported closing bid and asked prices
          regular way on such principal exchange, or, if such
          shares are not listed or admitted to trading on any
          national securities exchange or quoted on Nasdaq and the
          issuer and principal securities exchange do not meet such
          requirements, the average of the closing bid and asked
          prices in the over-the-counter market as furnished by any
          New York Stock Exchange member firm that is selected from
          time to time by the Company for that purpose, or if no
          such bid and asked prices can be obtained from any such
          firm, the fair market value of such Capital Stock on such
          day as determined in good faith by the Board of
          Directors.

                    (vi)  "Disqualified Stock" means any Capital
          Stock which, by its terms (or by the terms of any
          security into which it is convertible or for which it is
          exchangeable), or upon the happening of any event,
          matures or is mandatorily redeemable, pursuant to a
          sinking fund obligation or otherwise, or is redeemable at
          the option of the holder thereof, in whole or in part, on
          or prior to the maturity date of the Senior Notes,
          provided, however, that any Capital Stock which would not
          constitute Disqualified Stock but for provisions thereof
          giving holders thereof the right to require the Company
          to repurchase or redeem such Capital Stock upon the
          occurrence of a Change of Control occurring prior to the
          Final Mandatory Redemption Date shall not constitute
          Disqualified Stock if the change in control provisions
          applicable to such Capital Stock are no more favorable to
          the holders of such Capital Stock than the provisions
          applicable to the Senior Notes and such Capital Stock
          specifically provides that the Company will not
          repurchase or redeem any such stock pursuant to such
          provisions prior to the Company's repurchase of such
          Senior Notes as are required to be repurchased pursuant
          to the terms of Section 4.16 of the Indenture.

                    (vii)  "Investment Grade" means a rating of at
          least BBB-, in the case of S&P, or Baa3, in the case of
          Moody's.

                    (viii)  "Person" means any individual,
          corporation, partnership, joint venture, association,
          joint-stock company, trust or unincorporated organization
          (including any subdivision or ongoing business of any
          such entity or substantially all of the assets of any
          such entity, subdivision or business).

                    (ix)  "Total Common Equity" of any Person
          means, as of any date of determination (and as modified
          for purposes of the definition of "Change of Control"),
          the product of (i) the aggregate number of outstanding
          primary shares of Common Stock of such Person on such day
          (which shall not include any options or warrants on, or
          securities convertible or exchangeable into, shares of
          Common Stock of such Person) and (ii) the average Closing
          Price of such Common Stock over the 20 consecutive
          Trading Days immediately preceding such day.  If no such
          Closing Price exists with respect to shares of any such
          class, the value of such shares for purposes of clause
          (ii) of the preceding sentence shall be determined by the
          Board of Directors of the Company in good faith and
          evidenced by a resolution of the Board of Directors.

                    (x)  "Trading Day," with respect to a
          securities exchange or automated quotation system, means
          a day on which such exchange or system is open for a full
          day of trading.

                    (xi)  "Voting Stock" of any Person means
          Capital Stock of such Person which ordinarily has voting
          power for the election of directors (or Persons
          performing similar functions) of such Person, whether at
          all times or only so long as no senior class of
          securities has such voting power by reason of any
          contingency.

                    7.  Voting Rights.  (a) Except as herein
          provided or as otherwise required by law, holders of PIK
          Preferred Stock shall have no voting rights.  Whenever,
          at any time or times, dividends payable on the shares of
          Exchangeable Preferred Stock at the time outstanding
          shall be cumulatively in arrears for two consecutive
          quarterly  dividend periods, the holders of all shares of
          PIK Preferred Stock and any shares of Parity Securities
          upon which like voting rights have been conferred and are
          exercisable (the PIK Preferred Stock and any such Parity
          Securities, collectively for purposes of this Section 7,
          the "Defaulted Preferred Stock"), shall be entitled to
          elect one director of the Company at the Company's next
          annual meeting of stockholders and at each subsequent
          annual meeting of stockholders; and if such dividends on
          the Exchangeable Preferred Stock shall continue in
          arrears for four consecutive quarterly dividend periods,
          such holders of Defaulted Preferred Stock shall be
          entitled thereafter to elect one additional director of
          the Company at such next annual meeting and at each
          subsequent annual meeting; provided, however, the shares
          of Defaulted Preferred Stock shall be entitled to
          exercise their voting rights at a special meeting of the
          holders of shares of Defaulted Preferred Stock as set
          forth in paragraphs (b) and (c) of this Section 7.  At
          elections for such directors, each holder of PIK
          Preferred Stock shall be entitled to one vote for each
          share held (the holders of shares of any other series of
          Defaulted Preferred Stock ranking on such a parity being
          entitled to such number of votes, if any, for each share
          of stock held as may be granted to them).  Upon the
          vesting of such right of the holders of Defaulted
          Preferred Stock, the maximum authorized number of members
          of the Board of Directors shall automatically be
          increased by one or two, as the case may be, and the
          vacancies so created shall be filled by vote of the
          holders of outstanding Defaulted Preferred Stock as
          hereinafter set forth.  The right of holders of Defaulted
          Preferred Stock, voting separately as a class without
          regard to series, to elect members of the Board of
          Directors as aforesaid shall continue until such time as
          all dividends accumulated and unpaid on the Exchangeable
          Preferred Stock shall have been paid or declared and
          funds set aside for payment in full, at which time such
          right shall terminate, except as herein or by law
          expressly provided, subject to revesting in the event of
          each and every subsequent default of the character above
          mentioned.

                         (b)  Whenever such voting right shall have
          vested, such right may be exercised initially either at a
          special meeting of the holders of shares of Defaulted
          Preferred Stock called as hereinafter provided, or at any
          annual meeting of stockholders held for the purpose of
          electing directors, and thereafter at such meeting or by
          the written consent of such holders pursuant to Section
          228 of the DGCL.

                         (c)  At any time when such voting right
          shall have vested in the holders of shares of Defaulted
          Preferred Stock entitled to vote thereon, and if such
          right shall not already have been initially exercised, an
          officer of the Company shall, upon the written request of
          10% of the holders of record of shares of such Defaulted
          Preferred Stock then outstanding, addressed to the
          Secretary of the Company, call a special meeting of
          holders of shares of such Defaulted Preferred Stock. 
          Such meeting shall be held at the earliest practicable
          date upon the notice required for special meetings of
          stockholders at the place for holding annual meetings of
          stockholders of the Company or, if none, at a place
          designated by the Secretary of the Company.  If such
          meeting shall not be called by the proper officers of the
          Company within 30 days after the personal service of such
          written request upon the Secretary of the Company, or
          within 30 days after mailing the same within the United
          States, by registered mail, addressed to the Secretary of
          the Company at its principal office (such mailing to be
          evidenced by the registry receipt issued by the postal
          authorities), then holders of record of 10% of the shares
          of Defaulted Preferred Stock then outstanding may
          designate in writing any person to call such meeting at
          the expense of the Company, and such meeting may be
          called by such person so designated upon the notice
          required for special meetings of stockholders and shall
          be held at the same place as is elsewhere provided in
          this paragraph.  Any holder of shares of Defaulted
          Preferred Stock then outstanding that would be entitled
          to vote at such meeting shall have access to the stock
          books of the Company's transfer agent for the purpose of
          causing a meeting of stockholders to be called pursuant
          to the provisions of this paragraph.  Notwithstanding the
          provisions of this paragraph, however, no such special
          meeting shall be called or held during a period within 45
          days immediately preceding the date fixed for the next
          annual meeting of stockholders.

                         (d)  Subject to the provisions hereof, the
          directors elected pursuant to this section shall serve
          until the next annual meeting or until their respective
          successors shall be elected and qualified.  Any director
          elected by the holders of Defaulted Preferred Stock may
          be removed by, and shall not be removed otherwise than
          by, the vote of the holders of a majority of the
          outstanding shares of the Defaulted Preferred Stock who
          were entitled to participate in such election of
          directors, voting as a separate class, without regard to
          series, at a meeting called for such purpose or by
          written consent as permitted by law and the Certificate
          of Incorporation and by-laws of the Company.  If the
          office of any director elected by the holders of
          Defaulted Preferred Stock, voting as a class, without
          regard to series, becomes vacant by reason of death,
          resignation, retirement, disqualification or removal from
          office or otherwise, the remaining director elected by
          the holders of Defaulted Preferred Stock, voting as a
          class, without regard to series, may choose a successor
          who shall hold office for the unexpired term in respect
          of which such vacancy occurred.  Upon any termination of
          the right of the holders of Defaulted Preferred Stock to
          vote for directors as herein provided, the term of office
          of all directors then in office elected by the holders of
          Defaulted Preferred Stock, voting as a class, without
          regard to series, shall terminate immediately.  Whenever
          the terms of office of the directors elected by the
          holders of Defaulted Preferred Stock, voting as a class,
          without regard to series, shall so terminate and the
          special voting powers vested in the holders of Defaulted
          Preferred Stock shall have expired, the number of
          directors shall be such number as may be provided for in
          the Company's by-laws irrespective of any increase made
          pursuant to the provisions of this Section 7.

                    8.  Conversion Rights. (a) Each share of Series
          A PIK Preferred Stock may be converted, at any time and
          at the option of the holder, into 55.87 fully paid, non-
          assessable shares of Common Stock of the Company on and
          subject to the terms and conditions of this Section 8.

                         (b)  The number of shares of Common Stock
          issuable upon conversion of each share of the Series A
          PIK Preferred Stock shall be determined by the Conversion
          Price (as hereinafter defined) in effect on the date of
          conversion (calculated as to each conversion to the
          nearest 1/100th of a share).  The Conversion Price shall
          initially equal $17.90; provided, however, that such
          Conversion Price shall be adjusted and readjusted from
          time to time as provided in this Section 8 and, as so
          adjusted and readjusted, shall remain in effect until a
          further adjustment or readjustment thereof is required by
          this Section 8.

                         (c)  Except as may be provided by the
          Board of Directors, upon conversion of the PIK Preferred
          Stock, the Company is not obligated to make any payment
          or adjustment with respect to dividends accrued on the
          PIK Preferred Stock through the date of conversion unless          
          the holder of the shares of PIK Preferred Stock being
          converted was the record holder of such shares on the
          record date for the payment of such dividends.

                         (d)  Upon surrender to the Company at the
          office of the transfer agent or such other place or
          places, if any, as the Board of Directors may determine,
          of certificates duly endorsed to the Company or in blank
          for shares of PIK Preferred Stock to be converted
          together with appropriate evidence of the payment of any
          transfer or similar tax, if required, and written
          instructions to the Company requesting conversion of such
          shares and specifying the name and address of the person,
          corporation, firm or other entity to whom such shares of
          Common Stock are to be issued, the Company shall issue
          the number of full shares of Common Stock rounded to the
          nearest whole number issuable upon conversion thereof as
          of the time of such surrender and as promptly as
          practicable thereafter will deliver certificates for such
          shares of Common Stock.  No fractional shares of Common
          Stock shall be issued pursuant to this Section 8.  Upon
          surrender of a certificate representing shares of PIK
          Preferred Stock to be converted in part, in addition to
          the foregoing, the Company shall also issue to such
          holder a new certificate representing any unconverted
          shares of PIK Preferred Stock represented by the
          certificate surrendered for conversion.

                         (e)  The Company shall pay all
          documentary, stamp, or similar issue or transfer tax due
          on the issue of shares of Common Stock issuable upon
          conversion of the PIK Preferred Stock; provided, however,
          that the holder of shares of PIK Preferred Stock so
          converted shall pay any such tax which is due because
          such shares are to be issued in the name other than that
          of such holder.

                         (f)  The Conversion Price in effect at any
          time shall be adjusted as follows:

                              (1)  If the Company shall, at any
               time or from time to time, effect a subdivision of
               the outstanding Common Stock, the Conversion Price
               in effect immediately before such subdivision shall
               be proportionately decreased and, conversely, if the
               Company shall, at any time or from time to time,
               effect a combination of the outstanding Common
               Stock, the Conversion Price in effect immediately
               before such combination shall be proportionately
               increased.  Any adjustment under this subdivision
               shall become effective at the close of business on
               the record date fixed for the applicable subdivision
               or combination.

                              (2)  In the event the Company shall,
               at any time or from time to time, make or issue to
               all holders of shares of Common Stock (or fix a
               record date for the determination of holders of
               Common Stock entitled to receive), a dividend or
               other distribution payable in shares of Common
               Stock, then the Conversion Price then in effect
               shall be decreased as of the time of such issuance
               (or, in the event such a record date shall have been
               fixed, as of the close of business on such record
               date) in accordance with the following formula:

                                     0
                         C1 = C X -------
                                   0 + N

          where:

                    C1   =    the adjusted Conversion Price.

                    C    =    the current Conversion Price.

                    O    =    the number of shares of Common Stock
                              outstanding immediately prior to the
                              applicable issuance (or the close of
                              business on the record date).

                    N    =    the number of additional shares of
                              Common Stock issued in payment of
                              such dividend of distribution.

                              (3)  In the event that the Company
               shall issue or sell any shares of Common Stock prior
               to the second anniversary of the date of issuance of
               the PIK Preferred Stock pursuant to a transaction
               exempt from the registration requirement of the
               Securities Act of 1933, and 120% of the price at
               which such shares of Common Stock were issued or
               sold (the "Issue Price") is less than the Conversion
               Price in effect immediately prior to such issuance
               or sale, then the Conversion Price then in effect
               shall be reduced to an amount equal to 120% of such
               Issue Price.

                              (4)  In the event that the Company
               shall issue or sell any rights, warrants or options
               prior to the second anniversary of the date of
               issuance of the PIK Preferred Stock pursuant to a
               transaction exempt from the registration requirement
               of the Securities Act of 1933 to subscribe for or to
               purchase Common Stock or other securities
               convertible into or exercisable or exchangeable for
               Common Stock with an exercise or conversion price
               (the "Strike Price") which is less than the
               Conversion Price in effect immediately prior to such
               issuance or sale, then the Conversion Price then in
               effect be reduced to the Strike Price.

                         (g)  Anything herein to the contrary
          notwithstanding, no adjustment will be made to the
          Conversion Price by reason of (A) upon the issuance of
          Common Stock, Options or Convertible Securities to
          employees or directors of the Company pursuant to
          employee benefit plans or otherwise, or the issuance of
          Common Stock upon the conversion, exercise or exchange
          thereof, (B) the issuance of Common Stock upon the
          conversion, exercise or exchange of Options or
          Convertible Securities issued and outstanding on the date
          a certificate of designations setting forth this
          resolution is filed with the Secretary of State of the
          State of Delaware, or (C) the issuance of Common Stock
          upon the conversion of the PIK Preferred Stock.

                         (h)  No adjustment in the Conversion Price
          need be made unless the adjustment pursuant to Section
          8(f)(1) and (2) would require an increase or decrease of
          at least 1% in the Conversion Price.

                         (i)  No adjustment need be made for a
          change in the par value of the Common Stock.

                         (j)  Whenever the Conversion Price is
          adjusted, the Company shall promptly mail to holders of
          PIK Preferred Stock a notice of adjustment briefly
          stating the facts requiring the adjustment and the manner
          of computing it.
                         (k)  In case of any consolidation or
          merger of the Company with any other entity (other than a
          wholly-owned subsidiary of the Company), or in case of
          any sale or transfer of all or substantially all of the
          assets of the Company, or in the case of any share
          exchange pursuant to which all of the outstanding shares
          of Common Stock are converted into other securities or
          property, the Company shall make appropriate provision or
          cause appropriate provision to be made so that holders of
          each share of PIK Preferred Stock then outstanding shall
          have the right thereafter to convert such share of PIK
          Preferred Stock into the kind and amount of shares of
          stock and other securities and property receivable upon
          such consolidation, merger, sale, transfer or share
          exchange by a holder of the number of shares of Common
          Stock into which such share of PIK Preferred stock might
          have been converted immediately prior to the effective
          date of such consolidation, merger, sale, transfer or
          share exchange.  If in connection with any such
          consolidation, merger, sale, transfer or share exchange,
          each holder of shares of Common Stock is entitled to
          elect to receive either securities, cash or other assets
          upon completion of such transaction, the Company shall
          provide or cause to be provided to each holder of PIK
          Preferred Stock the right to elect to receive the
          securities, cash or other assets into which the PIK
          Preferred Stock held by such holder shall be convertible
          after completion of any such transaction on the same
          terms and subject to the same conditions applicable to
          holders of the Common Stock (including, without
          limitation, notice of the right to elect, limitations on
          the period in which such election shall be made and the
          effect of failing to exercise the election).  The Company
          shall not effect any such transaction unless the
          provisions of this paragraph have been fulfilled.  The
          above provisions shall similarly apply to successive
          consolidations, mergers, sales, transfers or share
          exchanges.

                         (l)  The Company shall reserve and at all
          times keep available, free from preemptive rights, out of
          its authorized but unissued stock, for the purpose of
          effecting the conversion of the PIK Preferred Stock, such
          number of its duly authorized Common Stock as shall from
          time to time be sufficient to effect the conversion of
          all outstanding PIK Preferred Stock.

                    9.  Limitation and Rights Upon Insolvency. 
          Notwithstanding any other provision of this certificate,
          the Company shall not be required to pay any dividend on,
          or to pay any amount in respect of any redemption of, the
          PIK Preferred Stock at a time when immediately after
          making such payment the Company is or would be rendered
          insolvent (as defined by applicable law), provided that
          the obligation of the Company to make any such payment
          shall not be extinguished in the event the foregoing
          limitation applies.

                    10.  Limitations under the Financing.
          Notwithstanding any other provision of this certificate,
          the Company shall not be required to pay any dividend on,
          or to pay any amount in respect of any redemption of, the
          PIK Preferred Stock if upon, or after, making such
          payment the Company would, or with the passage of time,
          or the giving of notice, or both, would be in default
          under the terms of the Financing, provided that the
          obligation of the Company to make any such payment shall
          not be extinguished in the event the foregoing limitation
          applies.

                    11.  Shares to Be Retired.  Any share of PIK
          Preferred Stock converted, redeemed or otherwise acquired
          by the Company shall be retired and cancelled and shall
          upon cancellation be restored to the status of authorized
          but unissued shares of preferred stock, subject to
          reissuance by the Board of Directors as PIK Preferred
          Stock or shares of preferred stock of one or more other
          series.

                    12. Record Holders.  The Company and the
          Company's transfer agent may deem and treat the record
          holder of any shares of PIK Preferred Stock as the true
          and lawful owner thereof for all purposes, and neither
          the Company nor the Company's transfer agent shall be
          affected by any notice to the contrary.

                    13.  Notice.  Except as may otherwise be
          provided for herein, all notices referred to herein shall
          be in writing, and all notices hereunder shall be deemed
          to have been given upon, the earlier of receipt of such
          notice or three Business Days after the mailing of such
          notice if sent by registered mail (unless first-class
          mail shall be specifically permitted for such notice
          under the terms of this Certificate of Designations) with
          postage prepaid, addressed:  if to the Company, to its
          offices at 200 South Lamar Street, Security Centre, South
          Building, Jackson, Mississippi  39201 (Attention: 
          General Counsel) or to an agent of the Company designated
          as permitted by the Certificate of Incorporation or, if
          to any holder of the PIK Preferred Stock, to such holder
          at the address of such holder of the PIK Preferred Stock
          as listed in the stock record books of the Company (which
          may include the records of the Company's transfer agent);
          or to such other address as the Company or holder, as the
          case may be, shall have designated by notice similarly
          given.
                    IN WITNESS WHEREOF, this Corrected Certificate
          of Rights and Preferences has been duly executed this 7th
          day of May, 1996.

                                        MOBILE TELECOMMUNICATION
                                        TECHNOLOGIES CORP.

                                        By: /s/ John E. Welsh, III
                                           _________________________
                                           John E. Welsh, III
                                           Vice Chairman and Chief
                                            Financial Officer


                                  CORRECTED
                    CERTIFICATE OF RIGHTS AND PREFERENCES
                                      OF
                   THE SERIES B 7.5% CUMULATIVE CONVERTIBLE
                     ACCRUING PAY-IN-KIND PREFERRED STOCK
                                      OF
                 MOBILE TELECOMMUNICATION TECHNOLOGIES CORP.

                _____________________________________________

                  Pursuant to Section 103(f) of the General
                  Corporation Law of the State of Delaware 
                _____________________________________________

                    MOBILE TELECOMMUNICATION TECHNOLOGIES CORP.
          (the "Company"), a company organized and existing under
          and by virtue of the provisions of the General
          Corporation Law as of the State of Delaware (the "DGCL"),
          certifies as follows:

                    FIRST:    On April 17, 1996, the Company filed
          with the Secretary of State a Certificate of Rights and
          Preferences of Series B 7.5% Cumulative Convertible
          Accruing Pay-In-Kind Preferred Stock (the "Certificate of
          Designations").

                    SECOND:   A reference to "one or more" (in
          place of "a") in the fourth line of the resolution that
          appears in paragraph THIRD of the Certificate of
          Designations was omitted.  A Reference to "the "Series B
          PIK Preferred Stock," together with all other series of
          the Company's 7.5% Cumulative Convertible Accruing Pay-
          In-Kind Preferred Stock," and a reference to "The Series
          B PIK Preferred Stock together with all other series of
          the PIK Preferred Stock will, in the aggregate," (in
          place of "which will") in Section 1 of the Certificate of
          Designations were omitted.

                    THIRD:    A reference to "Series B" was omitted
          on the first line of Section 2, on the 33rd line of
          Section 3(i), on the first line of Section 8(a) and on
          the second line of Section 8(b) of the Certificate of
          Designations.

                    FOURTH:   A reference to "PIK" was omitted on
          the seventh line of the second paragraph of Section 5(d),
          the second line of Section 5(e), the 26th, 30th, 34th and
          37th lines of Section 6(a) and the sixth line of Section
          8(c) of the Certificate of Designations.

                    FIFTH:    A reference to "April 17, 1996" (in
          place of "the date of issuance of the PIK Preferred
          Stock") was omitted on the 28th line of Section 3(i) of
          the Certificate of Designations.

                    SIXTH:    The foregoing corrections were
          prepared in accordance with the provisions of Section
          103(f) of the General Corporation Law of the State of
          Delaware.

                    SEVENTH:  Set forth below is the text of the
          Corrected Certificate of Designation:          
          FIRST:  The Company was incorporated in the
          State of Delaware on October 21, 1988;

                    SECOND:  The Certificate of Incorporation of
          the Company authorizes the issuance of 25,000,000 shares
          of Preferred Stock, par value $.01 per share and,
          further, authorizes the Board of Directors of the Company
          (the "Board of Directors"), by resolution or resolutions,
          at any time and from time to time, to divide and
          establish any or all of the unissued shares of Preferred
          Stock into one or more classes or series, and without
          limiting the generality of the foregoing, to fix and
          determine the designation of each such class or series,
          the number of shares which shall constitute such class or
          series and certain relative rights and preferences of the
          shares of each class or series so established.

                    THIRD:  The Board of Directors of the Company
          pursuant to authority conferred upon the Board of
          Directors under the Restated Certificate of Incorporation
          (the "Certificate of Incorporation") filed with the
          Secretary of State of Delaware on December 27, 1988 and
          at a meeting that was duly called on March 27, 1996, at
          which a quorum was present and acting throughout, did
          duly adopt the following resolutions authorizing the
          issuance of one or more series of the Company's Preferred
          Stock, par value $.01 per share, and setting forth the
          terms and provisions of said Preferred Stock:

               RESOLVED, that the Board of Directors, pursuant
               to authority vested in it by the provisions of
               the Certificate of Incorporation, hereby
               authorizes the creation and issuance of one or
               more series of the Company's Preferred Stock,
               par value $.01 per share, which shall in the
               aggregate consist of up to 130,000 shares of
               the 25,000,000 shares of Preferred Stock that
               the Company now has authority to issue, and
               hereby fixes the powers, designation, dividend
               rate, redemption provisions, voting powers,
               right on liquidation or dissolution, and other
               preferences and relative participating,
               optional or other rights, and the
               qualifications, limitations or restrictions
               thereof (in addition to those set forth in said
               Certificate of Incorporation) as follows:

                    1.  Designation.  The Preferred Stock of the
          Company created and authorized for issuance hereby shall
          be designated as "Series B 7.5% Cumulative Convertible
          Accruing Pay-In-Kind Preferred Stock" (the "Series B PIK
          Preferred Stock," together with all other series of the
          Company's 7.5% Cumulative Convertible Accruing Pay-In-
          Kind Preferred Stock, hereinafter the "PIK Preferred
          Stock").  The Series B PIK Preferred Stock together with
          all other series of the PIK Preferred Stock will, in the
          aggregate, consist of 130,000 shares of such PIK
          Preferred Stock.

                    2.  Priority.  The Series B PIK Preferred Stock
          shall, with respect to dividend rights and rights on
          liquidation, winding up or dissolution, whether voluntary
          or involuntary, whether now or hereafter issued, rank (i)
          on parity with any other series of PIK Preferred Stock
          and any other series of Preferred Stock established
          hereafter by the Board of Directors, the terms of which
          shall specifically provide that such series shall rank on
          parity with the PIK Preferred Stock with respect to
          dividend rights and rights on liquidation, winding up or
          dissolution, (all of such series of Preferred Stock to
          which the PIK Preferred Stock ranks on parity are at all
          times collectively referred to as "Parity Securities")
          (ii) junior to the Company's $2.25 Cumulative Convertible
          Exchangeable Preferred Stock (the "Exchangeable Preferred
          Stock") and any other series of Preferred Stock
          established by the Board of Directors, the terms of which
          shall specifically provide that such series shall rank
          senior to the PIK Preferred Stock with respect to
          dividend rights and rights on liquidation, winding up or
          dissolution (all of such series of Preferred Stock to
          which the PIK Preferred Stock ranks junior, including the 
          Exchangeable Preferred Stock, are at times collectively
          referred to herein as the "Senior Securities"), and (iii)
          senior to the Company's Series C Junior Participating
          Preferred Stock, $.01 par value per share (the "Series C
          Preferred Stock"), the Company's Common Stock, $.01 par
          value per share (the "Common Stock"), and, subject to
          clauses (i) and (ii) hereof, any other equity securities
          of the Company, with respect to dividend rights and
          rights on liquidation, winding up or dissolution (all of
          such equity securities of the Company to which the PIK
          Preferred Stock ranks senior, including the Series C
          Preferred Stock and the Common Stock, are at times
          collectively referred to herein as the "Junior
          Securities").  Notwithstanding the foregoing, the Company
          shall not establish, create, authorize or issue any
          shares of Parity Securities (other than additional series
          of PIK Preferred Stock) or Senior Securities nor issue
          any subordinated debt (other than in connection with any
          refinancing, exchange or similar transaction with respect
          to the existing Senior Notes (as defined herein)) without
          the prior written consent of a majority of the holders of
          the PIK Preferred Stock.

                    3.  Dividends.  (i) Holders of shares of PIK
          Preferred Stock shall be entitled to receive out of funds
          legally available for the payment of dividends ("Legally
          Available Funds"), cumulative dividends for each share of
          PIK Preferred Stock in an amount equal to the annual rate
          of 7.5% (or $75 per share per year) accruable quarterly
          on June 15, September 15, December 15 and March 15 (or at
          such additional times and for such interim periods, if
          any, as determined by the Board of Directors) (each of
          such dates being a "Dividend Accrual Date"), except that
          if such date is a Saturday, Sunday or legal holiday then
          such dividend shall be accruable on the next date that is
          not a Saturday, Sunday or legal holiday or which banks in
          the State of New York are permitted to be closed (a
          "Business Day").  Each of such quarterly dividends
          accruals shall be fully cumulative and shall accrue
          (whether or not declared), on a daily basis from the
          first day of the quarterly period in which such dividend
          may be accruable as provided herein, provided, however,
          that with respect to the first dividend accrual date
          following the issuance of shares of PIK Preferred Stock,
          such dividend shall accrue from the Issuance Date.  All
          accrued but unpaid dividends shall be compounded
          quarterly at a rate equal to an annual rate of 7.5%.  The
          Board of Directors shall declare and pay such accrued
          dividends at such time and to the extent permitted by law
          and the Financing (as hereinafter defined), subject to
          the provisions of paragraph 3(iii) below.  During the
          period commencing on April 17, 1996 (the "Issuance Date")
          and ending on the fifth anniversary of the Issuance Date,
          or such longer period as shall be necessary to comply
          with the terms of the Financing (as defined below),
          dividends may, at the Company's option, be paid in shares
          of Series B PIK Preferred Stock.  No fractional shares of
          PIK Preferred Stock shall be issued, so that the number
          of shares to be paid as a dividend pursuant to this
          paragraph shall be rounded to the nearest whole number of
          shares.  Such dividends shall be paid to the holders of
          record at the close of business on the date specified by
          the Board of Directors of the Company at the time such
          dividend is declared; provided, however, that such
          declaration date shall not be more than 60 days nor less
          than 10 days prior to the respective Dividend Payment
          Date. 

                    For the purposes of this Certificate of
          Designation the "Financing" shall mean (i) the Credit,
          Security, Guaranty and Pledge Agreement, dated as of
          December 21, 1995 among Skytel Corp., the Company and
          certain subsidiaries thereof, certain lenders, Chemical
          Bank, Credit Lyonnais New York Branch, and J.P. Morgan
          Securities Inc. as amended, and (ii) the Company's 131/2%
          Senior Notes due 2002 (the "Senior Notes").

                         (ii)  All dividends paid with respect to
          shares of the PIK Preferred Stock pursuant to section
          3(i) shall be paid pro rata to the holders entitled
          thereto.  All dividends paid in additional shares of PIK
          Preferred Stock shall be deemed issued on the applicable
          Dividend Payment Date, and will thereupon be duly
          authorized, validly issued, fully paid and nonassessable
          and free and clear of all liens and charges.

                         (iii)  Notwithstanding anything contained
          herein to the contrary, no cash dividends on shares of
          PIK Preferred Stock shall be declared by the Board of
          Directors or paid or set apart for payment by the Company
          at such time as the terms and provisions of the Financing
          specifically prohibit such declaration, payment or
          setting apart for payment or provide that such
          declaration, payment or setting apart for payment would
          (or, with notice or lapse of time or both, would)
          constitute a breach thereof or a default thereunder.

                         (iv)  If at any time the Company shall
          have failed to pay all dividends which have accrued on
          any outstanding shares of Senior Securities or any Parity
          Securities at the times such dividends are payable,
          unless otherwise provided in the terms of the Senior
          Securities or the Parity Securities, no cash or stock
          dividend shall be declared by the Board of Directors or
          paid or set apart for payment by the Company on shares of
          PIK Preferred Stock unless prior to or concurrently with
          such declaration, payment or setting apart for payment,
          all accrued and unpaid dividends on all outstanding
          shares of such Senior Securities and Parity Securities
          shall have been  declared, paid or set apart for payment,
          without interest; provided, however, that in the event
          such failure to pay accrued dividends is with respect
          only to the outstanding shares of PIK Preferred Stock and
          any outstanding shares of any Parity Securities, cash or
          stock dividends may be declared, paid or set apart for
          payment, without interest, pro rata on shares of PIK
          Preferred Stock and shares of such other series of
          Preferred Stock so that the amounts of any dividends
          declared, paid or set apart for payment (whether in cash
          or additional securities) on shares of PIK Preferred
          Stock and shares of such other series of Preferred Stock
          shall in all cases bear to each other the same ratio
          that, at the time of such declaration, payment or setting
          apart for payment, the amounts of all accrued but unpaid
          dividends on shares of the PIK Preferred Stock and shares
          of Parity Securities bear to each other.  Any dividend
          not paid pursuant to section 3(i) hereof or this section
          3(iv) shall be fully cumulative and shall accrue (whether
          or not declared), without interest, as set forth in
          section 3(i) hereof, even if such dividend is not paid
          pursuant to section 3(iii).

                         (v)  (a)  Holders of shares of PIK
          Preferred Stock shall be entitled to receive the
          dividends provided for in section 3(i) hereof in
          preference to and in priority over any dividends upon 
          any of the Junior Securities.

                              (b)  So long as any shares of PIK
          Preferred Stock are outstanding, the Company shall not
          declare, pay or set apart for payment any dividend on any
          of the Junior Securities or make any payment on account
          of, or set apart for payment money for a sinking or other
          similar fund for, the purchase, redemption, retirement or
          other acquisition of, or otherwise acquire for value, any
          of the Junior Securities or any warrants, rights, calls
          or options exercisable for any of the Junior Securities,
          or make any distribution in respect thereof, either
          directly or indirectly, whether in cash, obligations or
          shares of the Company or other property (other than
          distributions or dividends payable solely in the same
          Junior Securities to the holders of such stock), and
          shall not permit any company or other entity directly or
          indirectly controlled by the Company to purchase or
          redeem any of the Junior Securities or any warrants,
          rights, calls or options exercisable for any of the
          Junior Securities, unless prior to or concurrently with
          such declaration, payment, setting apart for payment,
          purchase or distribution, as the case may be, all accrued
          and unpaid dividends, if any, on shares of PIK Preferred
          Stock not paid on the dates provided for in section 3(i)
          hereof (including if not paid pursuant to the terms and
          conditions of section 3(iii) or section 3(iv) hereof)
          shall have been paid.

                              (c)  Subject to the foregoing
          provisions of this section 3, the Board of Directors may
          declare and the Company may pay or set apart for payment
          dividends and other distributions on any of the Junior
          Securities, and may purchase or otherwise redeem any of
          the Junior Securities or any warrants, rights or options
          exercisable for any of the Junior Securities, and the
          holders of the shares of PIK Preferred Stock shall not be
          entitled to share therein.

                    4.  Liquidation Preference.  (i) In the event
          of any voluntary or involuntary liquidation, dissolution
          or winding up of the affairs of the Company, the holders
          of shares of PIK Preferred Stock then outstanding shall
          be entitled to be paid out of the assets of the Company
          available for distribution to its stockholders an amount
          in cash equal to $1,000 for each share outstanding, plus
          an amount in cash equal to all accrued but unpaid
          dividends thereon to the date fixed for liquidation,
          before any payment shall be made or any assets
          distributed to the holders of any of the Junior
          Securities; provided, however, that the holders of
          outstanding shares of PIK Preferred Stock shall not be
          entitled to receive such liquidation payment until the
          liquidation payments on all outstanding shares of Senior
          Securities shall have been paid in full.  No full
          preferential payment on account of any liquidation,
          dissolution or winding up of the Company, whether
          voluntary or involuntary, shall be made to the holders of
          any class of Parity Securities unless there shall
          likewise be paid at the same time to holders of PIK
          Preferred Stock the full amounts to which such holders
          are entitled with respect to such distribution.  If the
          assets of the Company are not sufficient to pay in full
          the liquidation payments payable to the holders of
          outstanding shares of PIK Preferred Stock and outstanding
          shares of Parity Securities, then the holders of all such
          shares shall share ratably in such distribution of assets
          in accordance with the full respective preferential
          amounts that would be payable on such shares of PIK
          Preferred Stock and such shares of Parity Securities if
          all amounts payable thereon were paid in full.

                         (ii)  For the purposes of this section 4,
          (x) the voluntary sale, conveyance, exchange or transfer
          (for cash, shares of stock, securities or other
          consideration) of all or substantially all of the
          property or assets of the Company or (y) the
          consolidation or merger of the Company with one or more
          other companies or entities shall not be deemed to be a
          liquidation, dissolution or winding up, voluntary or
          involuntary.

                    5.  Redemption.

                         (a)  Mandatory Redemptions.  To the extent
          permitted by law and the Financing, as mandatory
          redemptions for the retirement of the shares of PIK
          Preferred Stock, the Company shall redeem, out of Legally
          Available Funds (if such shares remain outstanding) on
          each of the seventh, eighth and ninth anniversaries of
          the Issuance Date (each a "Mandatory Redemption Date"),
          twenty-five percent (25%) of the shares of PIK Preferred
          Stock initially issued and then outstanding, in each case
          at the redemption price of $1,000 for each share
          outstanding, plus an amount in cash equal to all accrued
          but unpaid dividends to the Mandatory Redemption Date. 
          Immediately prior to authorizing or making such
          redemption with respect to the PIK Preferred Stock, the
          Company, by resolution of its Board of Directors shall,
          to the extent of any Legally Available Funds, declare a
          dividend on the PIK Preferred Stock payable on the
          Mandatory Redemption Date in an amount equal to any
          accrued and unpaid dividends on the PIK Preferred Stock
          as of such date and, if the Company does not have
          sufficient Legally Available Funds to declare and pay all
          dividends accrued at the time of such redemption, any
          remaining accrued and unpaid dividends shall be added to
          the redemption price.  If the Company shall fail to
          discharge its obligation to redeem the aforementioned
          outstanding shares of PIK Preferred Stock required to be
          redeemed pursuant to this section 5(a) (the "Mandatory
          Redemption Obligation"), the Mandatory Redemption
          Obligation shall be discharged as soon as the Company is
          able to discharge such Mandatory Redemption Obligation. 
          If and so long as the Mandatory Redemption Obligation
          shall not be fully discharged, (i) dividends on such PIK
          Preferred Stock shall continue to accrue and be added to
          the dividend payable pursuant to the second preceding
          sentence and (ii) the Company shall not declare or pay
          any dividend or make any distribution on its securities
          not otherwise permitted by this certificate.  If on any
          Mandatory Redemption Date less than 18,750 shares of PIK
          Preferred Stock remain outstanding, the Mandatory
          Redemption Obligation shall apply only to such lesser
          number of shares of PIK Preferred Stock then outstanding,
          and such obligation shall be discharged when such lesser
          number of shares is redeemed in accordance with this
          section 5(a).

                         (b)  Final Mandatory Redemption.  (i) To
          the extent permitted by law and the Financing, as a final
          mandatory redemption for the retirement of the shares of
          PIK Preferred Stock, the Company shall redeem, out of
          Legally Available Funds (if such shares remain
          outstanding) on April 1, 2006 (the "Final Mandatory
          Redemption Date"), all remaining shares of PIK Preferred
          Stock then outstanding, at the redemption price of $1,000
          for each share outstanding, plus an amount in cash equal
          to all accrued but unpaid dividends thereon to the Final
          Mandatory Redemption Date.  Immediately prior to
          authorizing or making such redemption with respect to the
          PIK Preferred Stock, the Company, by resolution of its
          Board of Directors shall, to the extent of any Legally
          Available Funds, declare a dividend on the PIK Preferred
          Stock payable on the Final Mandatory Redemption Date in
          an amount equal to any accrued and unpaid dividends on
          the PIK Preferred Stock as of such date and, if the
          Company  does not have sufficient Legally Available Funds
          to declare and pay all dividends accrued at the time of
          such redemption, any remaining accrued and unpaid
          dividends shall be added to the redemption price.  If the
          Company  shall fail to discharge its obligation to redeem
          all of the outstanding shares of PIK Preferred Stock
          required to be redeemed pursuant to this section 5(b)
          (the "Final Mandatory Redemption Obligation"), the Final
          Mandatory Redemption Obligation shall be discharged as
          soon as the Company is able to discharge such Final
          Mandatory Redemption Obligation.  If and so long as the
          Final Mandatory Redemption Obligation shall not be fully
          discharged, (x) dividends on the PIK Preferred Stock
          shall continue to accrue and be added to the dividend
          payable pursuant to the second preceding sentence and (y)
          the Company shall not declare or pay any dividend or make
          any distribution on its securities not otherwise
          permitted by this certificate.

                    (ii) The Company may, at it option, make any
          mandatory redemption payment required pursuant to clauses
          (a) and (b)(i) of this Section 5 in shares of Common
          Stock in lieu of cash.  In the event that the Company
          elects to make any such payment in Common Stock, on the
          Redemption Date, in lieu of cash, each holder shall
          receive that number of shares (rounded to the nearest
          whole share) of Common Stock determined by dividing (i)
          the aggregate amount of cash that such holder would
          otherwise have received (including with respect to
          accrued and unpaid dividends) pursuant to such redemption
          by (ii) the average Closing Price of the Common Stock for
          the twenty consecutive Trading Days immediately preceding
          the Mandatory Redemption Date or the Final Redemption
          Date, as the case may be.

                         (c)  Optional Redemption.  To the extent
          permitted by law and the Financing, the PIK Preferred
          Stock shall be redeemable at any time, or from time to
          time, in whole or in part, out of Legally Available
          Funds, at the option of the Company, on any date after
          (i) the second anniversary of the Issuance Date (a
          "Regular Optional Redemption Date") or (ii) the first
          anniversary of, but prior to the second anniversary of,
          the Issuance Date (an "Accelerated Optional Redemption
          Date", and together with a Regular Optional Redemption
          Date, an "Optional Redemption Date"); provided, however,
          that no redemption shall be made under clause (ii) unless
          the average Closing Price (as defined in section 8) of
          the Common Stock for any period of twenty consecutive
          Trading Days (as defined in section 6), prior to any such
          redemption, equals or exceeds 175% of the Conversion
          Price (as determined in accordance with section 8). 
          Optional redemptions shall be made, upon giving notice as
          provided in clause (d) below, at the redemption price of
          $1,000 for each share outstanding, plus an amount in cash
          equal to all accrued but unpaid dividends thereon to the
          Optional Redemption Date.  Immediately prior to
          authorizing or making any such redemption with respect to
          the PIK Preferred Stock, and as a condition precedent to
          the Company so redeeming at its option, in whole or in
          part, shares of the PIK Preferred Stock, the Company, by
          resolution of its Board of Directors shall, to the extent
          of any Legally Available Funds, declare a dividend on the
          PIK Preferred Stock payable on the Optional Redemption
          Date in an amount equal to any accrued and unpaid
          dividends on the PIK Preferred Stock as of such date and
          if the Company does not have sufficient Legally Available
          Funds to declare and pay all dividends accrued to the
          Optional Redemption Date, any remaining accrued and
          unpaid dividends shall be added to the redemption price.

                         (d)  Notice of Redemption.  For the
          purposes of this section 5(d), a Mandatory Redemption
          Date, a Final Mandatory Redemption Date, a Regular
          Optional Redemption Date and an Accelerated Optional
          Redemption Date are hereinafter collectively referred to
          as a "Redemption Date").  In the event the Company shall
          redeem shares of PIK Preferred Stock pursuant to any of
          clauses (a), (b) or (c) above, a notice of such
          redemption shall be given by first-class mail, postage
          prepaid, mailed not less than 20 nor more than 60 days
          prior to the Redemption Date, to each holder of record of
          the shares to be redeemed, at such holder's address as
          the same appears on the stock books of the Company's
          transfer agent.  Each such notice shall state:  (i) the
          Redemption Date; (ii) the number of shares of PIK
          Preferred Stock to be redeemed and, if less than all the
          shares held by such holder are to be redeemed, the number
          of such shares to be redeemed from such holder; (iii) the
          redemption price and the form in which such redemption
          price will be paid (cash or shares of Common Stock); (iv)
          the place or places where certificates for such shares
          are to be surrendered for payment of the redemption
          price; (v) that payment will be made upon presentation
          and surrender of such PIK Preferred Stock; (vi) the then
          current Conversion Price; (vii) that dividends on the
          shares to be redeemed shall cease to accrue following
          such Redemption Date; (viii) that such redemption is at
          the option of the Company or that such redemption is a
          mandatory redemption or a final redemption; and (ix) that
          accrued and unpaid dividends up to and including the
          Redemption Date will be paid in accordance with the terms
          herein.  Notice having been mailed as aforesaid, on and
          after the Redemption Date, unless the Company shall be in
          default in providing money for the payment of the
          redemption price (including an amount equal to any
          accrued and unpaid dividends up to and including the
          Redemption Date), (x) dividends on the shares of the PIK
          Preferred Stock so called for redemption shall cease to
          accrue, (y) said shares shall be deemed no longer
          outstanding, and (z) all rights of the holders thereof as
          stockholders of the Company (except the right to receive
          from the Company the monies payable upon redemption,
          without interest thereon, upon surrender of the
          certificates evidencing such shares) shall cease.  The
          Company's obligation to provide monies in accordance with
          the preceding sentence shall be deemed fulfilled if, on
          or before the Redemption Date, the Company shall deposit
          with a bank or trust company having an office or agency
          in the Borough of Manhattan, City of New York, and having
          a capital and surplus of at least $500,000,000, the
          principal amount of funds necessary for such redemption,
          in trust for the account of the holders of the shares to
          be redeemed (and so as to be and continue to be available
          therefor), with irrevocable instructions and authority to
          such bank or trust company that such funds be applied to
          the redemption of the shares of PIK Preferred Stock so
          called for redemption.  Any interest accrued on such
          funds shall be paid to the Company from time to time. 
          Any funds so deposited and unclaimed at the end of three
          years from such Redemption Date shall be released or
          repaid to the Company, after which, subject to any
          applicable laws relating to escheat or unclaimed
          property, the holder or holders of such shares of PIK
          Preferred Stock so called for redemption shall look only
          to the Company for payment of the redemption price.

                         Upon surrender in accordance with said
          notice of the certificates for any such shares so
          redeemed (properly endorsed or assigned for transfer, if
          the Board of Directors shall so require and the notice
          shall so state), such shares shall be redeemed by the
          Company at the applicable redemption price aforesaid.  If
          fewer than all the outstanding shares of PIK Preferred
          Stock are to be redeemed, shares to be redeemed shall be
          selected by the Company from outstanding shares of PIK
          Preferred Stock not previously called for redemption by
          lot or pro rata or by any other equitable method
          determined by the Board of Directors in its sole
          discretion.  If fewer than all the shares represented by
          any certificate are redeemed, a new certificate shall be
          issued representing the unredeemed shares without cost to
          the holder thereof.  In the event that the Company elects
          to make any Mandatory Redemption or the Final Redemption
          in shares at Common Stock, upon such surrender,
          accompanied by written instructions to the Company
          specifying the name and address of the person,
          corporation, firm or other entity to whom such shares of
          Common Stock are to be issued, the Company shall issue
          the number of full shares rounded to the nearest whole
          number issuable upon the redemption thereof as of the
          time of such surrender and as promptly as practicable
          thereafter will deliver certificates for such shares of
          Common Stock.  No fractional shares will be issued
          pursuant to this Section 5.  The Company, to the extent
          required, shall authorize, free of preemptive rights,
          such number of duly authorized shares of Common Stock as
          shall be required to effect the redemption.

                    Notwithstanding the foregoing, if the Company's
          notice of redemption has been given pursuant to this
          Section 5 and any holder of shares of PIK Preferred Stock
          shall, prior to the close of business on the third
          Business Day preceding the Redemption Date, give written
          notice to the Company pursuant to this Section 5(d)
          hereof of the conversion of any or all of the shares to
          be redeemed held by such holder (accompanied by a
          certificate or certificates for such shares, duly
          endorsed or assigned to the Company), then the conversion
          of such shares to be redeemed shall become effective as
          provided in Section 8.  In the event that such redemption
          was pursuant to a Mandatory Redemption, any shares so
          converted shall, at the option of the Company, be counted
          as shares required to be redeemed pursuant to such
          Mandatory Redemption.

                         (e)  The election by the Company to redeem
          shares of PIK Preferred Stock pursuant to this Section 5
          hereof shall become irrevocable only on the relevant
          Optional Redemption Date.

                    6.  Redemption Upon a Change of Control.  (a) 
          Upon the occurrence of a Change of Control (as defined
          below), the Company shall make an offer (the "Change of
          Control Offer") to each holder of PIK Preferred Stock to
          repurchase all or any part of such holder's PIK Preferred
          Stock at a purchase price equal to $1,000 per share, plus
          an amount equal to accrued and unpaid dividends to the
          date of redemption (the "Change of Control Redemption
          Date"); provided, however, that no Change of Control
          Offer shall be made, pursuant to this section 6, until
          such time as an offer to repurchase the Senior Notes upon
          a "Change of Control" (as defined therein) on the terms
          and conditions set forth in such Senior Notes and in the
          indenture pursuant to which they were issued (the
          "Indenture") shall have been made to the holders of the
          Senior Notes, and such offer shall have been completed
          and payment in full to the holders of such Senior Notes
          shall have been paid, in accordance with the terms of the
          Senior Notes and the Indenture.  No additional dividends
          shall be accrued or be paid after the Change of Control
          Redemption Date on shares of PIK Preferred Stock tendered
          and redeemed pursuant to the Change of Control Offer. 
          Within thirty (30) days following a Change of Control,
          the Company shall mail a notice to each holder stating: 
          (1) that the Change of Control Offer is being made
          pursuant to this Section 6 and that all shares of PIK
          Preferred Stock tendered will be accepted for payment;
          (2) the purchase price and the Change of Control
          Redemption Date, which shall be no earlier than 30 days
          nor later than 40 days from the date such notice is
          mailed; (3) that any shares of PIK Preferred Stock not
          tendered will continue to accrue dividends in accordance
          with the terms of Section 3; (4) that, unless the Company
          defaults in the payment of the redemption price, all
          shares of PIK Preferred Stock redeemed pursuant to the
          Change of Control Offer shall cease to accrue dividends
          after the Change of Control Redemption Date; (5) that
          holders electing to have any shares of PIK Preferred
          Stock redeemed pursuant to the Change of Control Offer
          will be required to surrender the certificates
          representing such shares; (6) that holders will be
          entitled to withdraw their election if the Company's
          transfer agent receives, not later than the close of
          business on the second Business Day preceding the Change
          of Control Redemption Date, a telegram, telex, facsimile
          transmission or letter setting forth the name of the
          holder, the number of shares delivered for redemption,
          and a statement that such holder is withdrawing his
          election to have such shares redeemed; and (7) that
          holders whose shares are being redeemed only in part will
          be issued new certificates representing shares not
          redeemed by the Company.

                         (b)  On the Change of Control Redemption
          Date, the Company shall, to the extent lawful, (i) accept
          for redemption shares tendered pursuant to the Change of
          Control Offer, (ii) deposit with a bank or trust company
          having an office or agency in the Borough of Manhattan,
          City of New York, and having a capital and surplus of at
          least $500,000,000, an amount equal to the purchase price
          in respect of all shares so tendered, in trust for the
          account of the holders of the shares to be redeemed (and
          so as to be and continue to be available therefor), with
          irrevocable instructions and authority to such bank or
          trust company that such funds be applied to the
          redemption of the shares of PIK Preferred Stock tendered
          pursuant to the Change of Control Offer.  The Company's
          transfer agent shall promptly mail to each holder a
          certificate representing shares surrendered but not
          tendered and not redeemed in accordance with such
          holder's instructions, if any. 

                         (c)  The redemption option of the holder
          of PIK Preferred Stock upon a Change of Control pursuant
          to this Section 6 may constitute an "issuer tender offer"
          as defined in Rule 13e-4 under the Securities Exchange
          Act of 1934, as amended (the "Exchange Act"), and in such
          event such transaction may be subject to the requirements
          of Rule 13e-4, including the filing of an Issuer Tender
          Offer Statement on Schedule 13E-4 with the Securities and
          Exchange Commission and the furnishing of certain
          information contained therein to such holder.  If such a
          Change of Control occurs, (i) the Company will comply
          with all appropriate rules and regulations applicable to
          "issuer tender offers" at such time and (ii) each holder
          of PIK Preferred Stock will be entitled to withdraw the
          notice of redemption given hereunder throughout the
          "issuer tender offer."  Upon the expiration date of the
          "issuer tender offer," such notice shall be irrevocable
          and shall terminate all conversion rights with respect to
          the PIK Preferred Stock to be redeemed under this Section
          6.  The Company shall comply with the requirements of
          Rule 14e-1 under the Exchange Act and any other
          securities laws and regulations thereunder to the extent
          such laws and regulations are applicable in connection
          with the redemption of shares in connection with a Change
          of Control.

               (d)  "Change of Control" means the occurrence of any
          of the following events:

                         (i)  any Person (as such term is used in
          Sections 13(d) and 14(d) of the Exchange Act), is or
          becomes the Beneficial Owner, directly or indirectly, of
          more than 50% of the total Voting Stock or Total Common
          Equity of the Company; provided, that no Change of
          Control will be deemed to occur pursuant to this clause
          (a) if (x) the Person is a corporation with outstanding
          debt securities having a maturity at original issuance of
          at least one year and if such debt securities are rated
          Investment Grade by S&P or Moody's for a period of at
          least 90 consecutive days, beginning on the date of such
          event (which period will be extended up to 90 additional
          days for as long as the rating of such debt securities is
          under publicly announced consideration for possible
          downgrading by the applicable rating agency), or (y) the
          Person is a corporation (1) that is not, and does not
          have any outstanding debt securities that are, rated by
          S&P, Moody's or any other rating agency of national
          standing at any time during a period of 90 consecutive
          days beginning on the date of such event (which period
          will be extended up to an additional 90 days for as long
          as any such rating agency has publicly announced that
          such corporation or debt thereof will be rated), unless
          after such date but during such period debt securities of
          such corporation having a maturity at original issuance
          of at least one year are rated Investment Grade by S&P or
          Moody's and remain so rated for the remainder of the
          period referred to in clause (x) above and (2) that, when
          determined as of the Trading Day immediately before and
          the Trading Day immediately after the date of such event,
          has Total Common Equity of at least $5.0 billion
          (provided that, solely for the purpose of calculating
          Total Common Equity as of such later Trading Day, the
          average Closing Price of Common Stock of such Person will
          be deemed to equal the Closing Price of such Common Stock
          on such later Trading Day, subject to the last sentence
          of the definition of "Total Common Equity");
                         (ii)  the Company consolidates with, or
          merges with or into, another Person or sells, assigns,
          conveys, transfers, leases or otherwise disposes of all
          or substantially all of its assets to any Person, or any
          Person consolidates with, or merges with or into, the
          Company, in any such event pursuant to a transaction in
          which the outstanding Voting Stock of the Company is
          converted into or exchanged for cash, securities or other
          property, other than any such transaction where (i) the
          outstanding Voting Stock of the Company is converted into
          or exchanged for (1) Voting Stock (other than
          Disqualified Stock) of the surviving or transferee Person
          or (2) cash, securities and other property in an amount
          which could be paid by the Company as a Restricted
          Payment (as such term is defined in Section 4.07 of the
          Indenture) and (ii) immediately after such transaction no
          Person (as such term is used in Sections 13(d) and 14(d)
          of the Exchange Act), is the Beneficial Owner, directly
          or indirectly, of more than 50% of the total Voting Stock
          or Total Common Equity of the surviving or transferee
          Person; provided, that no Change of Control will be
          deemed to occur pursuant to this clause (d) if (x) the
          surviving or transferee Person or the Person referred to
          in clause (d)(ii)(2) is a corporation with outstanding
          debt securities having a maturity at original issuance of
          at least one year and if such debt securities are rated
          Investment Grade by S&P or Moody's for a period of at
          least 90 consecutive days, beginning on the date of such
          event (which period will be extended up to 90 additional
          days for as long as the rating of such debt securities is
          under publicly announced consideration for possible
          downgrading by the applicable rating agency), or (y) the
          surviving or transferee Person or such other Person is a
          corporation (1) that is not, and does not have any
          outstanding debt securities that are, rated by S&P,
          Moody's or any other rating agency of national standing
          at any time during a period of 90 consecutive days
          beginning on the date of such event (which period will be
          extended up to an additional 90 days for as long as any
          such rating agency has publicly announced that such
          corporation or debt thereof will be rated), unless after
          such date but during such period debt securities of such
          corporation having a maturity at original issuance of at
          least one year are rated Investment Grade by S&P or
          Moody's and remain so rated for the remainder of the
          period referred to in clause (x) above and (2) that, when
          determined as of the Trading Day immediately before and
          the Trading Day immediately after the date of such event,
          has Total Common Equity of at least $5.0 billion
          (provided that, solely for the purpose of calculating
          Total Common Equity as of such later Trading Day, the
          average Closing Price of the Common Stock of such Person
          will be deemed to equal the Closing Price of such Common
          Stock on such later Trading Day, subject to the last
          sentence of the definition of "Total Common Equity"); or

                         (iii)  during any consecutive two-year
          period, individuals who at the beginning of such period
          constituted the Board of Directors of the Company
          (together with any directors who are members of the Board
          of Directors on the date hereof and any new directors
          whose election by such Board of Directors or whose
          nomination for election by the stockholders of the
          Company was approved by a vote of 66 2/3% of the
          directors then still in office who were either directors
          at the beginning of such period or whose election or
          nomination for election was previously so approved) cease
          for any reason to constitute a majority of the Board of
          Directors of the Company then in office.

                    Any event that would constitute a Change of
          Control pursuant to clause (i) or (ii) above but for the
          proviso thereto will not be deemed to be a Change of
          Control until such time (if any) as the conditions
          described in such proviso cease to have been met.

               (e)  For the purposes of this Section 6 the
          following terms are defined as follows:

                    (i)  "Beneficial Owner" means a beneficial
          owner as defined in Rules 13d-3 and 13d-5 under the
          Exchange Act (or any successor rules), including the
          provision of such rules that a Person shall be deemed to
          have beneficial ownership of all securities that such
          Person has a right to acquire within 60 days of the date
          of determination of beneficial ownership of such
          security; provided that a Person will not be deemed a
          beneficial owner of, or to own beneficially, any
          securities if such beneficial ownership (1) arises solely
          as a result of a revocable proxy delivered in response to
          a proxy or consent solicitation made pursuant to, and in
          accordance with, the Exchange Act and (2) is not also
          then reportable on Schedule 13D (or any successor
          schedule) under the Exchange Act.

                    (ii)  "Business Day" means any day other than a
          Saturday, a Sunday or a day on which banking institutions
          in the City of New York or at a place of payment are
          authorized by law, regulation or executive order to
          remain closed.

                    (iii)  "Capital Stock" means (i) in the case of
          a corporation, corporate stock, (ii) in the case of an
          association or other business entity, any and all shares,
          interests, participations, rights or other equivalents
          (however designated) of corporate stock and (iii) in the
          case of a partnership, partnership interests (whether
          general or limited) and any other interest or
          participation that confers on a Person the right to
          receive a share of the profits and losses of, or
          distributions of assets of, such partnership.

                    (iv)  "Common Stock" of any Person means
          Capital Stock of such Person that does not rank prior, as
          to the payment of dividends or as to the distribution of
          assets upon any voluntary or involuntary liquidation,
          dissolution or winding up of such Person, to shares of
          Capital Stock of any other class of such Person.

                    (v)  "Closing Price" on any Trading Day with
          respect to the per share price of any shares of Capital
          Stock means the last reported sale price regular way or,
          in case no such reported sale takes place on such day,
          the average of the reported closing bid and asked prices
          regular way, in either case on the New York Stock
          Exchange or, if such shares of Capital Stock are not
          listed or admitted to trading on such exchange, on the
          principal national securities exchange on which such
          shares are listed or admitted to trading or, if not
          listed or admitted to trading on any national securities
          exchange, on the Nasdaq National Market or, if such
          shares are not listed or admitted to trading on any
          national securities exchange or quoted on Nasdaq but the
          issuer is a Foreign Issuer (as defined in Rule 3b-4(b)
          under the Exchange Act) and the principal securities
          exchange on which such shares are listed or admitted to
          trading is a Designated Offshore Securities Market (as
          defined in Rule 902(a) under the Securities Act), the
          average of the reported closing bid and asked prices
          regular way on such principal exchange, or, if such
          shares are not listed or admitted to trading on any
          national securities exchange or quoted on Nasdaq and the
          issuer and principal securities exchange do not meet such
          requirements, the average of the closing bid and asked
          prices in the over-the-counter market as furnished by any
          New York Stock Exchange member firm that is selected from
          time to time by the Company for that purpose, or if no
          such bid and asked prices can be obtained from any such
          firm, the fair market value of such Capital Stock on such
          day as determined in good faith by the Board of
          Directors.

                    (vi)  "Disqualified Stock" means any Capital
          Stock which, by its terms (or by the terms of any
          security into which it is convertible or for which it is
          exchangeable), or upon the happening of any event,
          matures or is mandatorily redeemable, pursuant to a
          sinking fund obligation or otherwise, or is redeemable at
          the option of the holder thereof, in whole or in part, on
          or prior to the maturity date of the Senior Notes,
          provided, however, that any Capital Stock which would not
          constitute Disqualified Stock but for provisions thereof
          giving holders thereof the right to require the Company
          to repurchase or redeem such Capital Stock upon the
          occurrence of a Change of Control occurring prior to the
          Final Mandatory Redemption Date shall not constitute
          Disqualified Stock if the change in control provisions
          applicable to such Capital Stock are no more favorable to
          the holders of such Capital Stock than the provisions
          applicable to the Senior Notes and such Capital Stock
          specifically provides that the Company will not
          repurchase or redeem any such stock pursuant to such
          provisions prior to the Company's repurchase of such
          Senior Notes as are required to be repurchased pursuant
          to the terms of Section 4.16 of the Indenture.

                    (vii)  "Investment Grade" means a rating of at
          least BBB-, in the case of S&P, or Baa3, in the case of
          Moody's.

                    (viii)  "Person" means any individual,
          corporation, partnership, joint venture, association,
          joint-stock company, trust or unincorporated organization
          (including any subdivision or ongoing business of any
          such entity or substantially all of the assets of any
          such entity, subdivision or business).

                    (ix)  "Total Common Equity" of any Person
          means, as of any date of determination (and as modified
          for purposes of the definition of "Change of Control"),
          the product of (i) the aggregate number of outstanding
          primary shares of Common Stock of such Person on such day
          (which shall not include any options or warrants on, or
          securities convertible or exchangeable into, shares of
          Common Stock of such Person) and (ii) the average Closing
          Price of such Common Stock over the 20 consecutive
          Trading Days immediately preceding such day.  If no such
          Closing Price exists with respect to shares of any such
          class, the value of such shares for purposes of clause
          (ii) of the preceding sentence shall be determined by the
          Board of Directors of the Company in good faith and
          evidenced by a resolution of the Board of Directors.

                    (x)  "Trading Day," with respect to a
          securities exchange or automated quotation system, means
          a day on which such exchange or system is open for a full
          day of trading.

                    (xi)  "Voting Stock" of any Person means
          Capital Stock of such Person which ordinarily has voting
          power for the election of directors (or Persons
          performing similar functions) of such Person, whether at
          all times or only so long as no senior class of
          securities has such voting power by reason of any
          contingency.

                    7.  Voting Rights.  (a) Except as herein
          provided or as otherwise required by law, holders of PIK
          Preferred Stock shall have no voting rights.  Whenever,
          at any time or times, dividends payable on the shares of
          Exchangeable Preferred Stock at the time outstanding
          shall be cumulatively in arrears for two consecutive
          quarterly  dividend periods, the holders of all shares of
          PIK Preferred Stock and any shares of Parity Securities
          upon which like voting rights have been conferred and are
          exercisable (the PIK Preferred Stock and any such Parity
          Securities, collectively for purposes of this Section 7,
          the "Defaulted Preferred Stock"), shall be entitled to
          elect one director of the Company at the Company's next
          annual meeting of stockholders and at each subsequent
          annual meeting of stockholders; and if such dividends on
          the Exchangeable Preferred Stock shall continue in
          arrears for four consecutive quarterly dividend periods,
          such holders of Defaulted Preferred Stock shall be
          entitled thereafter to elect one additional director of
          the Company at such next annual meeting and at each
          subsequent annual meeting; provided, however, the shares
          of Defaulted Preferred Stock shall be entitled to
          exercise their voting rights at a special meeting of the
          holders of shares of Defaulted Preferred Stock as set
          forth in paragraphs (b) and (c) of this Section 7.  At
          elections for such directors, each holder of PIK
          Preferred Stock shall be entitled to one vote for each
          share held (the holders of shares of any other series of
          Defaulted Preferred Stock ranking on such a parity being
          entitled to such number of votes, if any, for each share
          of stock held as may be granted to them).  Upon the
          vesting of such right of the holders of Defaulted
          Preferred Stock, the maximum authorized number of members
          of the Board of Directors shall automatically be
          increased by one or two, as the case may be, and the
          vacancies so created shall be filled by vote of the
          holders of outstanding Defaulted Preferred Stock as
          hereinafter set forth.  The right of holders of Defaulted
          Preferred Stock, voting separately as a class without
          regard to series, to elect members of the Board of
          Directors as aforesaid shall continue until such time as
          all dividends accumulated and unpaid on the Exchangeable
          Preferred Stock shall have been paid or declared and
          funds set aside for payment in full, at which time such
          right shall terminate, except as herein or by law
          expressly provided, subject to revesting in the event of
          each and every subsequent default of the character above
          mentioned.

                         (b)  Whenever such voting right shall have
          vested, such right may be exercised initially either at a
          special meeting of the holders of shares of Defaulted
          Preferred Stock called as hereinafter provided, or at any
          annual meeting of stockholders held for the purpose of
          electing directors, and thereafter at such meeting or by
          the written consent of such holders pursuant to Section
          228 of the DGCL.

                         (c)  At any time when such voting right
          shall have vested in the holders of shares of Defaulted
          Preferred Stock entitled to vote thereon, and if such
          right shall not already have been initially exercised, an
          officer of the Company shall, upon the written request of
          10% of the holders of record of shares of such Defaulted
          Preferred Stock then outstanding, addressed to the
          Secretary of the Company, call a special meeting of
          holders of shares of such Defaulted Preferred Stock. 
          Such meeting shall be held at the earliest practicable
          date upon the notice required for special meetings of
          stockholders at the place for holding annual meetings of
          stockholders of the Company or, if none, at a place
          designated by the Secretary of the Company.  If such
          meeting shall not be called by the proper officers of the
          Company within 30 days after the personal service of such
          written request upon the Secretary of the Company, or
          within 30 days after mailing the same within the United
          States, by registered mail, addressed to the Secretary of
          the Company at its principal office (such mailing to be
          evidenced by the registry receipt issued by the postal
          authorities), then holders of record of 10% of the shares
          of Defaulted Preferred Stock then outstanding may
          designate in writing any person to call such meeting at
          the expense of the Company, and such meeting may be
          called by such person so designated upon the notice
          required for special meetings of stockholders and shall
          be held at the same place as is elsewhere provided in
          this paragraph.  Any holder of shares of Defaulted
          Preferred Stock then outstanding that would be entitled
          to vote at such meeting shall have access to the stock
          books of the Company's transfer agent for the purpose of
          causing a meeting of stockholders to be called pursuant
          to the provisions of this paragraph.  Notwithstanding the
          provisions of this paragraph, however, no such special
          meeting shall be called or held during a period within 45
          days immediately preceding the date fixed for the next
          annual meeting of stockholders.

                         (d)  Subject to the provisions hereof, the
          directors elected pursuant to this section shall serve
          until the next annual meeting or until their respective
          successors shall be elected and qualified.  Any director
          elected by the holders of Defaulted Preferred Stock may
          be removed by, and shall not be removed otherwise than
          by, the vote of the holders of a majority of the
          outstanding shares of the Defaulted Preferred Stock who
          were entitled to participate in such election of
          directors, voting as a separate class, without regard to
          series, at a meeting called for such purpose or by
          written consent as permitted by law and the Certificate
          of Incorporation and by-laws of the Company.  If the
          office of any director elected by the holders of
          Defaulted Preferred Stock, voting as a class, without
          regard to series, becomes vacant by reason of death,
          resignation, retirement, disqualification or removal from
          office or otherwise, the remaining director elected by
          the holders of Defaulted Preferred Stock, voting as a
          class, without regard to series, may choose a successor
          who shall hold office for the unexpired term in respect
          of which such vacancy occurred.  Upon any termination of
          the right of the holders of Defaulted Preferred Stock to
          vote for directors as herein provided, the term of office
          of all directors then in office elected by the holders of
          Defaulted Preferred Stock, voting as a class, without
          regard to series, shall terminate immediately.  Whenever
          the terms of office of the directors elected by the
          holders of Defaulted Preferred Stock, voting as a class,
          without regard to series, shall so terminate and the
          special voting powers vested in the holders of Defaulted
          Preferred Stock shall have expired, the number of
          directors shall be such number as may be provided for in
          the Company's by-laws irrespective of any increase made
          pursuant to the provisions of this Section 7.

                    8.  Conversion Rights. (a) Each share of Series
          B PIK Preferred Stock may be converted, at any time and
          at the option of the holder, into 52.38 fully paid, non-
          assessable shares of Common Stock of the Company on and
          subject to the terms and conditions of this Section 8.

                         (b)  The number of shares of Common Stock
          issuable upon conversion of each share of the Series B
          PIK Preferred Stock shall be determined by the Conversion
          Price (as hereinafter defined) in effect on the date of
          conversion (calculated as to each conversion to the
          nearest 1/100th of a share).  The Conversion Price shall
          initially equal $19.09; provided, however, that such
          Conversion Price shall be adjusted and readjusted from
          time to time as provided in this Section 8 and, as so
          adjusted and readjusted, shall remain in effect until a
          further adjustment or readjustment thereof is required by
          this Section 8.

                         (c)  Except as may be provided by the
          Board of Directors, upon conversion of the PIK Preferred
          Stock, the Company is not obligated to make any payment
          or adjustment with respect to dividends accrued on the
          PIK Preferred Stock through the date of conversion unless
          the holder of the shares of PIK Preferred Stock being
          converted was the record holder of such shares on the
          record date for the payment of such dividends.
                         (d)  Upon surrender to the Company at the
          office of the transfer agent or such other place or
          places, if any, as the Board of Directors may determine,
          of certificates duly endorsed to the Company or in blank
          for shares of PIK Preferred Stock to be converted
          together with appropriate evidence of the payment of any
          transfer or similar tax, if required, and written
          instructions to the Company requesting conversion of such
          shares and specifying the name and address of the person,
          corporation, firm or other entity to whom such shares of
          Common Stock are to be issued, the Company shall issue
          the number of full shares of Common Stock rounded to the
          nearest whole number issuable upon conversion thereof as
          of the time of such surrender and as promptly as
          practicable thereafter will deliver certificates for such
          shares of Common Stock.  No fractional shares of Common
          Stock shall be issued pursuant to this Section 8.  Upon
          surrender of a certificate representing shares of PIK
          Preferred Stock to be converted in part, in addition to
          the foregoing, the Company shall also issue to such
          holder a new certificate representing any unconverted
          shares of PIK Preferred Stock represented by the
          certificate surrendered for conversion.

                         (e)  The Company shall pay all
          documentary, stamp, or similar issue or transfer tax due
          on the issue of shares of Common Stock issuable upon
          conversion of the PIK Preferred Stock; provided, however,
          that the holder of shares of PIK Preferred Stock so
          converted shall pay any such tax which is due because
          such shares are to be issued in the name other than that
          of such holder.

                         (f)  The Conversion Price in effect at any
          time shall be adjusted as follows:

                              (1)  If the Company shall, at any
               time or from time to time, effect a subdivision of
               the outstanding Common Stock, the Conversion Price
               in effect immediately before such subdivision shall
               be proportionately decreased and, conversely, if the
               Company shall, at any time or from time to time,
               effect a combination of the outstanding Common
               Stock, the Conversion Price in effect immediately
               before such combination shall be proportionately
               increased.  Any adjustment under this subdivision
               shall become effective at the close of business on
               the record date fixed for the applicable subdivision
               or combination.

                              (2)  In the event the Company shall,
               at any time or from time to time, make or issue to
               all holders of shares of Common Stock (or fix a
               record date for the determination of holders of
               Common Stock entitled to receive), a dividend or
               other distribution payable in shares of Common
               Stock, then the Conversion Price then in effect
               shall be decreased as of the time of such issuance
               (or, in the event such a record date shall have been
               fixed, as of the close of business on such record
               date) in accordance with the following formula:

                                     0
                         C1 = C X -------
                                   0 + N

          where:                    C1   =    the adjusted Conversion Price.

                    C    =    the current Conversion Price.

                    O    =    the number of shares of Common Stock
                              outstanding immediately prior to the
                              applicable issuance (or the close of
                              business on the record date).

                    N    =    the number of additional shares of
                              Common Stock issued in payment of
                              such dividend of distribution.

                              (3)  In the event that the Company
               shall issue or sell any shares of Common Stock prior
               to the second anniversary of the date of issuance of
               the PIK Preferred Stock pursuant to a transaction
               exempt from the registration requirement of the
               Securities Act of 1933, and 120% of the price at
               which such shares of Common Stock were issued or
               sold (the "Issue Price") is less than the Conversion
               Price in effect immediately prior to such issuance
               or sale, then the Conversion Price then in effect
               shall be reduced to an amount equal to 120% of such
               Issue Price.

                              (4)  In the event that the Company
               shall issue or sell any rights, warrants or options
               prior to the second anniversary of the date of
               issuance of the PIK Preferred Stock pursuant to a
               transaction exempt from the registration requirement
               of the Securities Act of 1933 to subscribe for or to
               purchase Common Stock or other securities
               convertible into or exercisable or exchangeable for
               Common Stock with an exercise or conversion price
               (the "Strike Price") which is less than the
               Conversion Price in effect immediately prior to such
               issuance or sale, then the Conversion Price then in
               effect be reduced to the Strike Price.

                         (g)  Anything herein to the contrary
          notwithstanding, no adjustment will be made to the
          Conversion Price by reason of (A) upon the issuance of
          Common Stock, Options or Convertible Securities to
          employees or directors of the Company pursuant to
          employee benefit plans or otherwise, or the issuance of
          Common Stock upon the conversion, exercise or exchange
          thereof, (B) the issuance of Common Stock upon the
          conversion, exercise or exchange of Options or
          Convertible Securities issued and outstanding on the date
          a certificate of designations setting forth this
          resolution is filed with the Secretary of State of the
          State of Delaware, or (C) the issuance of Common Stock
          upon the conversion of the PIK Preferred Stock.

                         (h)  No adjustment in the Conversion Price
          need be made unless the adjustment pursuant to Section
          8(f)(1) and (2) would require an increase or decrease of
          at least 1% in the Conversion Price.

                         (i)  No adjustment need be made for a
          change in the par value of the Common Stock.
                         (j)  Whenever the Conversion Price is
          adjusted, the Company shall promptly mail to holders of
          PIK Preferred Stock a notice of adjustment briefly
          stating the facts requiring the adjustment and the manner
          of computing it.

                         (k)  In case of any consolidation or
          merger of the Company with any other entity (other than a
          wholly-owned subsidiary of the Company), or in case of
          any sale or transfer of all or substantially all of the
          assets of the Company, or in the case of any share
          exchange pursuant to which all of the outstanding shares
          of Common Stock are converted into other securities or
          property, the Company shall make appropriate provision or
          cause appropriate provision to be made so that holders of
          each share of PIK Preferred Stock then outstanding shall
          have the right thereafter to convert such share of PIK
          Preferred Stock into the kind and amount of shares of
          stock and other securities and property receivable upon
          such consolidation, merger, sale, transfer or share
          exchange by a holder of the number of shares of Common
          Stock into which such share of PIK Preferred stock might
          have been converted immediately prior to the effective
          date of such consolidation, merger, sale, transfer or
          share exchange.  If in connection with any such
          consolidation, merger, sale, transfer or share exchange,
          each holder of shares of Common Stock is entitled to
          elect to receive either securities, cash or other assets
          upon completion of such transaction, the Company shall
          provide or cause to be provided to each holder of PIK
          Preferred Stock the right to elect to receive the
          securities, cash or other assets into which the PIK
          Preferred Stock held by such holder shall be convertible
          after completion of any such transaction on the same
          terms and subject to the same conditions applicable to
          holders of the Common Stock (including, without
          limitation, notice of the right to elect, limitations on
          the period in which such election shall be made and the
          effect of failing to exercise the election).  The Company
          shall not effect any such transaction unless the
          provisions of this paragraph have been fulfilled.  The
          above provisions shall similarly apply to successive
          consolidations, mergers, sales, transfers or share
          exchanges.

                         (l)  The Company shall reserve and at all
          times keep available, free from preemptive rights, out of
          its authorized but unissued stock, for the purpose of
          effecting the conversion of the PIK Preferred Stock, such
          number of its duly authorized Common Stock as shall from
          time to time be sufficient to effect the conversion of
          all outstanding PIK Preferred Stock.

                    9.  Limitation and Rights Upon Insolvency. 
          Notwithstanding any other provision of this certificate,
          the Company shall not be required to pay any dividend on,
          or to pay any amount in respect of any redemption of, the
          PIK Preferred Stock at a time when immediately after
          making such payment the Company is or would be rendered
          insolvent (as defined by applicable law), provided that
          the obligation of the Company to make any such payment
          shall not be extinguished in the event the foregoing
          limitation applies.
                    10.  Limitations under the Financing.
          Notwithstanding any other provision of this certificate,
          the Company shall not be required to pay any dividend on,
          or to pay any amount in respect of any redemption of, the
          PIK Preferred Stock if upon, or after, making such
          payment the Company would, or with the passage of time,
          or the giving of notice, or both, would be in default
          under the terms of the Financing, provided that the
          obligation of the Company to make any such payment shall
          not be extinguished in the event the foregoing limitation
          applies.

                    11.  Shares to Be Retired.  Any share of PIK
          Preferred Stock converted, redeemed or otherwise acquired
          by the Company shall be retired and cancelled and shall
          upon cancellation be restored to the status of authorized
          but unissued shares of preferred stock, subject to
          reissuance by the Board of Directors as PIK Preferred
          Stock or shares of preferred stock of one or more other
          series.

                    12. Record Holders.  The Company and the
          Company's transfer agent may deem and treat the record
          holder of any shares of PIK Preferred Stock as the true
          and lawful owner thereof for all purposes, and neither
          the Company nor the Company's transfer agent shall be
          affected by any notice to the contrary.

                    13.  Notice.  Except as may otherwise be
          provided for herein, all notices referred to herein shall
          be in writing, and all notices hereunder shall be deemed
          to have been given upon, the earlier of receipt of such
          notice or three Business Days after the mailing of such
          notice if sent by registered mail (unless first-class
          mail shall be specifically permitted for such notice
          under the terms of this Certificate of Designations) with
          postage prepaid, addressed:  if to the Company, to its
          offices at 200 South Lamar Street, Security Centre, South
          Building, Jackson, Mississippi  39201 (Attention: 
          General Counsel) or to an agent of the Company designated
          as permitted by the Certificate of Incorporation or, if
          to any holder of the PIK Preferred Stock, to such holder
          at the address of such holder of the PIK Preferred Stock
          as listed in the stock record books of the Company (which
          may include the records of the Company's transfer agent);
          or to such other address as the Company or holder, as the
          case may be, shall have designated by notice similarly
          given.
                    IN WITNESS WHEREOF, this Corrected Certificate
          of Rights and Preferences has been duly executed this 7th
          day of May, 1996.

                                        MOBILE TELECOMMUNICATION
                                        TECHNOLOGIES CORP.

                                        By: /s/ John E. Welsh, III
                                           _________________________
                                           John E. Welsh, III
                                           Vice Chairman and Chief
                                            Financial Officer



                     RIGHTS AND PREFERENCES

                             OF THE

                            Series C

                  7.5% CUMULATIVE CONVERTIBLE

              ACCRUING PAY-IN-KIND PREFERRED STOCK

                               OF

          MOBILE TELECOMMUNICATION TECHNOLOGIES CORP.

          ___________________________________________

          Pursuant to Section 151(g) of the General
          Corporation Law of the State of Delaware
          ___________________________________________

                    MOBILE TELECOMMUNICATION TECHNOLOGIES CORP.
          (the "Company"), a company organized and existing under
          and by virtue of the provisions of the General
          Corporation Law as of the State of Delaware (the "DGCL"),
          certifies as follows:

                    FIRST:  The Company was incorporated in the
          State of Delaware on October 21, 1988;

                    SECOND:  The Certificate of Incorporation of
          the Company authorizes the issuance of 25,000,000 shares
          of Preferred Stock, par value $.01 per share and,
          further, authorizes the Board of Directors of the Company
          (the "Board of Directors"), by resolution or resolutions,
          at any time and from time to time, to divide and
          establish any or all of the unissued shares of Preferred
          Stock into one or more classes or series, and without
          limiting the generality of the foregoing, to fix and
          determine the designation of each such class or series,
          the number of shares which shall constitute such class or
          series and certain relative rights and preferences of the
          shares of each class or series so established.

                    THIRD:  The Board of Directors of the Company
          pursuant to authority conferred upon the Board of
          Directors under the Restated Certificate of Incorporation
          (the "Certificate of Incorporation") filed with the
          Secretary of State of Delaware on December 27, 1988 and
          at a meeting that was duly called on March 27, 1996, at
          which a quorum was present and acting throughout, did
          duly adopt the following resolutions authorizing the
          issuance of one or more series of the Company's Preferred
          Stock, par value $.01 per share, and setting forth the
          terms and provisions of said Preferred Stock:

               RESOLVED, that the Board of Directors, pursuant
               to authority vested in it by the provisions of
               the Certificate of Incorporation, hereby
               authorizes the creation and issuance of one or
               more series of the Company's Preferred Stock,
               par value $.01 per share, which shall in the
               aggregate consist of up to 130,000 shares of
               the 25,000,000 shares of Preferred Stock that
               the Company now has authority to issue, and
               hereby fixes the powers, designation, dividend
               rate, redemption provisions, voting powers,
               rights on liquidation or dissolution, and other
               preferences and relative participating,
               optional or other rights, and the
               qualifications, limitations or restrictions
               thereof (in addition to those set forth in said
               Certificate of Incorporation) as follows:

                    1.  Designation.  The Preferred Stock of the
          Company created and authorized for issuance hereby shall
          be designated as "Series C 7.5% Cumulative Convertible
          Accruing Pay-In-Kind Preferred Stock" (the "Series C PIK
          Preferred Stock," together with all other series of the
          Company's 7.5% Cumulative Convertible Accruing Pay-In-
          Kind Preferred Stock, hereinafter the "PIK Preferred
          Stock").  The Series C PIK Preferred Stock together with
          all other series of the PIK Preferred Stock will, in the
          aggregate, consist of 130,000 shares of such PIK
          Preferred Stock.

                    2.  Priority.  The Series C PIK Preferred Stock
          shall, with respect to dividend rights and rights on
          liquidation, winding up or dissolution, whether voluntary
          or involuntary, whether now or hereafter issued, rank (i)
          on parity with any other series of PIK Preferred Stock
          and any other series of Preferred Stock established
          hereafter by the Board of Directors, the terms of which
          shall specifically provide that such series shall rank on
          parity with the PIK Preferred Stock with respect to
          dividend rights and rights on liquidation, winding up or
          dissolution, (all of such series of Preferred Stock to
          which the PIK Preferred Stock ranks on parity are at all
          times collectively referred to as "Parity Securities")
          (ii) junior to the Company's $2.25 Cumulative Convertible
          Exchangeable Preferred Stock (the "Exchangeable Preferred
          Stock") and any other series of Preferred Stock
          established by the Board of Directors, the terms of which
          shall specifically provide that such series shall rank
          senior to the PIK Preferred Stock with respect to
          dividend rights and rights on liquidation, winding up or
          dissolution (all of such series of Preferred Stock to
          which the PIK Preferred Stock ranks junior, including the 
          Exchangeable Preferred Stock, are at times collectively
          referred to herein as the "Senior Securities"), and (iii)
          senior to the Company's Series C Junior Participating
          Preferred Stock, $.01 par value per share (the "Series C
          Preferred Stock"), the Company's Common Stock, $.01 par
          value per share (the "Common Stock"), and, subject to
          clauses (i) and (ii) hereof, any other equity securities
          of the Company, with respect to dividend rights and
          rights on liquidation, winding up or dissolution (all of
          such equity securities of the Company to which the PIK
          Preferred Stock ranks senior, including the Series C
          Preferred Stock and the Common Stock, are at times
          collectively referred to herein as the "Junior
          Securities").  Notwithstanding the foregoing, the Company
          shall not establish, create, authorize or issue any
          shares of Parity Securities (other than additional series
          of PIK Preferred Stock) or Senior Securities nor issue
          any subordinated debt (other than in connection with any
          refinancing, exchange or similar transaction with respect
          to the existing Senior Notes (as defined herein)) without
          the prior written consent of a majority of the holders of
          the PIK Preferred Stock.

                    3.  Dividends.  (i) Holders of shares of PIK
          Preferred Stock shall be entitled to receive out of funds
          legally available for the payment of dividends ("Legally
          Available Funds"), cumulative dividends for each share of
          PIK Preferred Stock in an amount equal to the annual rate
          of 7.5% (or $75 per share per year) accruable quarterly
          on June 15, September 15, December 15 and March 15 (or at
          such additional times and for such interim periods, if
          any, as determined by the Board of Directors) (each of
          such dates being a "Dividend Accrual Date"), except that
          if such date is a Saturday, Sunday or legal holiday then
          such dividend shall be accruable on the next date that is
          not a Saturday, Sunday or legal holiday or which banks in
          the State of New York are permitted to be closed (a
          "Business Day").  Each of such quarterly dividends
          accruals shall be fully cumulative and shall accrue
          (whether or not declared), on a daily basis from the
          first day of the quarterly period in which such dividend
          may be accruable as provided herein, provided, however,
          that with respect to the first dividend accrual date
          following the issuance of shares of PIK Preferred Stock,
          such dividend shall accrue from the Issuance Date.  All
          accrued but unpaid dividends shall be compounded
          quarterly at a rate equal to an annual rate of 7.5%.  The
          Board of Directors shall declare and pay such accrued
          dividends at such time and to the extent permitted by law
          and the Financing (as hereinafter defined), subject to
          the provisions of paragraph 3(iii) below.  During the
          period commencing on May 7, 1996 (the "Issuance Date")
          and ending on the fifth anniversary of the Issuance Date,
          or such longer period as shall be necessary to comply
          with the terms of the Financing (as defined below),
          dividends may, at the Company's option, be paid in shares
          of Series C PIK Preferred Stock.  No fractional shares of
          PIK Preferred Stock shall be issued, so that the number
          of shares to be paid as a dividend pursuant to this
          paragraph shall be rounded to the nearest whole number of
          shares.  Such dividends shall be paid to the holders of
          record at the close of business on the date specified by
          the Board of Directors of the Company at the time such
          dividend is declared; provided, however, that such
          declaration date shall not be more than 60 days nor less
          than 10 days prior to the respective Dividend Payment
          Date. 

                    For the purposes of this Certificate of
          Designation the "Financing" shall mean (i) the Credit,
          Security, Guaranty and Pledge Agreement, dated as of
          December 21, 1995 among Skytel Corp., the Company and
          certain subsidiaries thereof, certain lenders, Chemical
          Bank, Credit Lyonnais New York Branch, and J.P. Morgan
          Securities Inc. as amended, and (ii) the Company's 131/2%
          Senior Notes due 2002 (the "Senior Notes").

                         (ii)  All dividends paid with respect to
          shares of the PIK Preferred Stock pursuant to section
          3(i) shall be paid pro rata to the holders entitled
          thereto.  All dividends paid in additional shares of PIK
          Preferred Stock shall be deemed issued on the applicable
          Dividend Payment Date, and will thereupon be duly
          authorized, validly issued, fully paid and nonassessable
          and free and clear of all liens and charges.

                         (iii)  Notwithstanding anything contained
          herein to the contrary, no cash dividends on shares of
          PIK Preferred Stock shall be declared by the Board of
          Directors or paid or set apart for payment by the Company
          at such time as the terms and provisions of the Financing
          specifically prohibit such declaration, payment or
          setting apart for payment or provide that such
          declaration, payment or setting apart for payment would
          (or, with notice or lapse of time or both, would)
          constitute a breach thereof or a default thereunder.

                         (iv)  If at any time the Company shall
          have failed to pay all dividends which have accrued on
          any outstanding shares of Senior Securities or any Parity
          Securities at the times such dividends are payable,
          unless otherwise provided in the terms of the Senior
          Securities or the Parity Securities, no cash or stock
          dividend shall be declared by the Board of Directors or
          paid or set apart for payment by the Company on shares of
          PIK Preferred Stock unless prior to or concurrently with
          such declaration, payment or setting apart for payment,
          all accrued and unpaid dividends on all outstanding
          shares of such Senior Securities and Parity Securities
          shall have been  declared, paid or set apart for payment,
          without interest; provided, however, that in the event
          such failure to pay accrued dividends is with respect
          only to the outstanding shares of PIK Preferred Stock and
          any outstanding shares of any Parity Securities, cash or
          stock dividends may be declared, paid or set apart for
          payment, without interest, pro rata on shares of PIK
          Preferred Stock and shares of such other series of
          Preferred Stock so that the amounts of any dividends
          declared, paid or set apart for payment (whether in cash
          or additional securities) on shares of PIK Preferred
          Stock and shares of such other series of Preferred Stock
          shall in all cases bear to each other the same ratio
          that, at the time of such declaration, payment or setting
          apart for payment, the amounts of all accrued but unpaid
          dividends on shares of the PIK Preferred Stock and shares
          of Parity Securities bear to each other.  Any dividend
          not paid pursuant to section 3(i) hereof or this section
          3(iv) shall be fully cumulative and shall accrue (whether
          or not declared), without interest, as set forth in
          section 3(i) hereof, even if such dividend is not paid
          pursuant to section 3(iii).

                         (v)  (a)  Holders of shares of PIK
          Preferred Stock shall be entitled to receive the
          dividends provided for in section 3(i) hereof in
          preference to and in priority over any dividends upon any
          of the Junior Securities.

                              (b)  So long as any shares of PIK
          Preferred Stock are outstanding, the Company shall not
          declare, pay or set apart for payment any dividend on any
          of the Junior Securities or make any payment on account
          of, or set apart for payment money for a sinking or other
          similar fund for, the purchase, redemption, retirement or
          other acquisition of, or otherwise acquire for value, any
          of the Junior Securities or any warrants, rights, calls
          or options exercisable for any of the Junior Securities,
          or make any distribution in respect thereof, either
          directly or indirectly, whether in cash, obligations or
          shares of the Company or other property (other than
          distributions or dividends payable solely in the same
          Junior Securities to the holders of such stock), and
          shall not permit any company or other entity directly or
          indirectly controlled by the Company to purchase or
          redeem any of the Junior Securities or any warrants,
          rights, calls or options exercisable for any of the
          Junior Securities, unless prior to or concurrently with
          such declaration, payment, setting apart for payment,
          purchase or distribution, as the case may be, all accrued
          and unpaid dividends, if any, on shares of PIK Preferred
          Stock not paid on the dates provided for in section 3(i)
          hereof (including if not paid pursuant to the terms and
          conditions of section 3(iii) or section 3(iv) hereof)
          shall have been paid.

                              (c)  Subject to the foregoing
          provisions of this section 3, the Board of Directors may
          declare and the Company may pay or set apart for payment
          dividends and other distributions on any of the Junior
          Securities, and may purchase or otherwise redeem any of
          the Junior Securities or any warrants, rights or options
          exercisable for any of the Junior Securities, and the
          holders of the shares of PIK Preferred Stock shall not be
          entitled to share therein.

                    4.  Liquidation Preference.  (i) In the event
          of any voluntary or involuntary liquidation, dissolution
          or winding up of the affairs of the Company, the holders
          of shares of PIK Preferred Stock then outstanding shall
          be entitled to be paid out of the assets of the Company
          available for distribution to its stockholders an amount
          in cash equal to $1,000 for each share outstanding, plus
          an amount in cash equal to all accrued but unpaid
          dividends thereon to the date fixed for liquidation,
          before any payment shall be made or any assets
          distributed to the holders of any of the Junior
          Securities; provided, however, that the holders of
          outstanding shares of PIK Preferred Stock shall not be
          entitled to receive such liquidation payment until the
          liquidation payments on all outstanding shares of Senior
          Securities shall have been paid in full.  No full
          preferential payment on account of any liquidation,
          dissolution or winding up of the Company, whether
          voluntary or involuntary, shall be made to the holders of
          any class of Parity Securities unless there shall
          likewise be paid at the same time to holders of PIK
          Preferred Stock the full amounts to which such holders
          are entitled with respect to such distribution.  If the
          assets of the Company are not sufficient to pay in full
          the liquidation payments payable to the holders of
          outstanding shares of PIK Preferred Stock and outstanding
          shares of Parity Securities, then the holders of all such
          shares shall share ratably in such distribution of assets
          in accordance with the full respective preferential
          amounts that would be payable on such shares of PIK
          Preferred Stock and such shares of Parity Securities if
          all amounts payable thereon were paid in full.
                         (ii)  For the purposes of this section 4,
          (x) the voluntary sale, conveyance, exchange or transfer
          (for cash, shares of stock, securities or other
          consideration) of all or substantially all of the
          property or assets of the Company or (y) the
          consolidation or merger of the Company with one or more
          other companies or entities shall not be deemed to be a
          liquidation, dissolution or winding up, voluntary or
          involuntary.

                    5.  Redemption.

                         (a)  Mandatory Redemptions.  To the extent
          permitted by law and the Financing, as mandatory
          redemptions for the retirement of the shares of PIK
          Preferred Stock, the Company shall redeem, out of Legally
          Available Funds (if such shares remain outstanding) on
          each of the seventh, eighth and ninth anniversaries of
          the Issuance Date (each a "Mandatory Redemption Date"),
          twenty-five percent (25%) of the shares of PIK Preferred
          Stock initially issued and then outstanding, in each case
          at the redemption price of $1,000 for each share
          outstanding, plus an amount in cash equal to all accrued
          but unpaid dividends to the Mandatory Redemption Date. 
          Immediately prior to authorizing or making such
          redemption with respect to the PIK Preferred Stock, the
          Company, by resolution of its Board of Directors shall,
          to the extent of any Legally Available Funds, declare a
          dividend on the PIK Preferred Stock payable on the
          Mandatory Redemption Date in an amount equal to any
          accrued and unpaid dividends on the PIK Preferred Stock
          as of such date and, if the Company does not have
          sufficient Legally Available Funds to declare and pay all
          dividends accrued at the time of such redemption, any
          remaining accrued and unpaid dividends shall be added to
          the redemption price.  If the Company shall fail to
          discharge its obligation to redeem the aforementioned
          outstanding shares of PIK Preferred Stock required to be
          redeemed pursuant to this section 5(a) (the "Mandatory
          Redemption Obligation"), the Mandatory Redemption
          Obligation shall be discharged as soon as the Company is
          able to discharge such Mandatory Redemption Obligation. 
          If and so long as the Mandatory Redemption Obligation
          shall not be fully discharged, (i) dividends on such PIK
          Preferred Stock shall continue to accrue and be added to
          the dividend payable pursuant to the second preceding
          sentence and (ii) the Company shall not declare or pay
          any dividend or make any distribution on its securities
          not otherwise permitted by this certificate.  If on any
          Mandatory Redemption Date less than 18,750 shares of PIK
          Preferred Stock remain outstanding, the Mandatory
          Redemption Obligation shall apply only to such lesser
          number of shares of PIK Preferred Stock then outstanding,
          and such obligation shall be discharged when such lesser
          number of shares is redeemed in accordance with this
          section 5(a).

                         (b)  Final Mandatory Redemption.  (i) To
          the extent permitted by law and the Financing, as a final
          mandatory redemption for the retirement of the shares of
          PIK Preferred Stock, the Company shall redeem, out of
          Legally Available Funds (if such shares remain
          outstanding) on April 1, 2006 (the "Final Mandatory
          Redemption Date"), all remaining shares of PIK Preferred
          Stock then outstanding, at the redemption price of $1,000
          for each share outstanding, plus an amount in cash equal
          to all accrued but unpaid dividends thereon to the Final
          Mandatory Redemption Date.  Immediately prior to
          authorizing or making such redemption with respect to the
          PIK Preferred Stock, the Company, by resolution of its
          Board of Directors shall, to the extent of any Legally
          Available Funds, declare a dividend on the PIK Preferred
          Stock payable on the Final Mandatory Redemption Date in
          an amount equal to any accrued and unpaid dividends on
          the PIK Preferred Stock as of such date and, if the
          Company does not have sufficient Legally Available Funds
          to declare and pay all dividends accrued at the time of
          such redemption, any remaining accrued and unpaid
          dividends shall be added to the redemption price.  If the
          Company shall fail to discharge its obligation to redeem
          all of the outstanding shares of PIK Preferred Stock
          required to be redeemed pursuant to this section 5(b)
          (the "Final Mandatory Redemption Obligation"), the Final
          Mandatory Redemption Obligation shall be discharged as
          soon as the Company is able to discharge such Final
          Mandatory Redemption Obligation.  If and so long as the
          Final Mandatory Redemption Obligation shall not be fully
          discharged, (x) dividends on the PIK Preferred Stock
          shall continue to accrue and be added to the dividend
          payable pursuant to the second preceding sentence and (y)
          the Company shall not declare or pay any dividend or make
          any distribution on its securities not otherwise
          permitted by this certificate.

                    (ii) The Company may, at it option, make any
          mandatory redemption payment required pursuant to clauses
          (a) and (b)(i) of this Section 5 in shares of Common
          Stock in lieu of cash.  In the event that the Company
          elects to make any such payment in Common Stock, on the
          Redemption Date, in lieu of cash, each holder shall
          receive that number of shares (rounded to the nearest
          whole share) of Common Stock determined by dividing (i)
          the aggregate amount of cash that such holder would
          otherwise have received (including with respect to
          accrued and unpaid dividends) pursuant to such redemption
          by (ii) the average Closing Price of the Common Stock for
          the twenty consecutive Trading Days immediately preceding
          the Mandatory Redemption Date or the Final Redemption
          Date, as the case may be.

                         (c)  Optional Redemption.  To the extent
          permitted by law and the Financing, the PIK Preferred
          Stock shall be redeemable at any time, or from time to
          time, in whole or in part, out of Legally Available
          Funds, at the option of the Company, on any date after
          (i) the second anniversary of the Issuance Date (a
          "Regular Optional Redemption Date") or (ii) the first
          anniversary of, but prior to the second anniversary of,
          the Issuance Date (an "Accelerated Optional Redemption
          Date", and together with a Regular Optional Redemption
          Date, an "Optional Redemption Date"); provided, however,
          that no redemption shall be made under clause (ii) unless
          the average Closing Price (as defined in section 8) of
          the Common Stock for any period of twenty consecutive
          Trading Days (as defined in section 6), prior to any such
          redemption, equals or exceeds 175% of the Conversion
          Price (as determined in accordance with section 8). 
          Optional redemptions shall be made, upon giving notice as
          provided in clause (d) below, at the redemption price of
          $1,000 for each share outstanding, plus an amount in cash
          equal to all accrued but unpaid dividends thereon to the
          Optional Redemption Date.  Immediately prior to
          authorizing or making any such redemption with respect to
          the PIK Preferred Stock, and as a condition precedent to
          the Company so redeeming at its option, in whole or in
          part, shares of the PIK Preferred Stock, the Company, by
          resolution of its Board of Directors shall, to the extent
          of any Legally Available Funds, declare a dividend on the
          PIK Preferred Stock payable on the Optional Redemption
          Date in an amount equal to any accrued and unpaid
          dividends on the PIK Preferred Stock as of such date and
          if the Company does not have sufficient Legally Available
          Funds to declare and pay all dividends accrued to the
          Optional Redemption Date, any remaining accrued and
          unpaid dividends shall be added to the redemption price.

                         (d)  Notice of Redemption.  For the
          purposes of this section 5(d), a Mandatory Redemption
          Date, a Final Mandatory Redemption Date, a Regular
          Optional Redemption Date and an Accelerated Optional
          Redemption Date are hereinafter collectively referred to
          as a "Redemption Date").  In the event the Company shall
          redeem shares of PIK Preferred Stock pursuant to any of
          clauses (a), (b) or (c) above, a notice of such
          redemption shall be given by first-class mail, postage
          prepaid, mailed not less than 20 nor more than 60 days
          prior to the Redemption Date, to each holder of record of
          the shares to be redeemed, at such holder's address as
          the same appears on the stock books of the Company's
          transfer agent.  Each such notice shall state:  (i) the
          Redemption Date; (ii) the number of shares of PIK
          Preferred Stock to be redeemed and, if less than all the
          shares held by such holder are to be redeemed, the number
          of such shares to be redeemed from such holder; (iii) the
          redemption price and the form in which such redemption
          price will be paid (cash or shares of Common Stock); (iv)
          the place or places where certificates for such shares
          are to be surrendered for payment of the redemption
          price; (v) that payment will be made upon presentation
          and surrender of such PIK Preferred Stock; (vi) the then
          current Conversion Price; (vii) that dividends on the
          shares to be redeemed shall cease to accrue following
          such Redemption Date; (viii) that such redemption is at
          the option of the Company or that such redemption is a
          mandatory redemption or a final redemption; and (ix) that
          accrued and unpaid dividends up to and including the
          Redemption Date will be paid in accordance with the terms
          herein.  Notice having been mailed as aforesaid, on and
          after the Redemption Date, unless the Company shall be in
          default in providing money for the payment of the
          redemption price (including an amount equal to any
          accrued and unpaid dividends up to and including the
          Redemption Date), (x) dividends on the shares of the PIK
          Preferred Stock so called for redemption shall cease to
          accrue, (y) said shares shall be deemed no longer
          outstanding, and (z) all rights of the holders thereof as
          stockholders of the Company (except the right to receive
          from the Company the monies payable upon redemption,
          without interest thereon, upon surrender of the
          certificates evidencing such shares) shall cease.  The
          Company's obligation to provide monies in accordance with
          the preceding sentence shall be deemed fulfilled if, on
          or before the Redemption Date, the Company shall deposit
          with a bank or trust company having an office or agency
          in the Borough of Manhattan, City of New York, and having
          a capital and surplus of at least $500,000,000, the
          principal amount of funds necessary for such redemption,
          in trust for the account of the holders of the shares to
          be redeemed (and so as to be and continue to be available
          therefor), with irrevocable instructions and authority to
          such bank or trust company that such funds be applied to
          the redemption of the shares of PIK Preferred Stock so
          called for redemption.  Any interest accrued on such
          funds shall be paid to the Company from time to time. 
          Any funds so deposited and unclaimed at the end of three
          years from such Redemption Date shall be released or
          repaid to the Company, after which, subject to any
          applicable laws relating to escheat or unclaimed
          property, the holder or holders of such shares of PIK
          Preferred Stock so called for redemption shall look only
          to the Company for payment of the redemption price.

                         Upon surrender in accordance with said
          notice of the certificates for any such shares so
          redeemed (properly endorsed or assigned for transfer, if
          the Board of Directors shall so require and the notice
          shall so state), such shares shall be redeemed by the
          Company at the applicable redemption price aforesaid.  If
          fewer than all the outstanding shares of PIK Preferred
          Stock are to be redeemed, shares to be redeemed shall be
          selected by the Company from outstanding shares of PIK
          Preferred Stock not previously called for redemption by
          lot or pro rata or by any other equitable method
          determined by the Board of Directors in its sole
          discretion.  If fewer than all the shares represented by
          any certificate are redeemed, a new certificate shall be
          issued representing the unredeemed shares without cost to
          the holder thereof.  In the event that the Company elects
          to make any Mandatory Redemption or the Final Redemption
          in shares at Common Stock, upon such surrender,
          accompanied by written instructions to the Company
          specifying the name and address of the person,
          corporation, firm or other entity to whom such shares of
          Common Stock are to be issued, the Company shall issue
          the number of full shares rounded to the nearest whole
          number issuable upon the redemption thereof as of the
          time of such surrender and as promptly as practicable
          thereafter will deliver certificates for such shares of
          Common Stock.  No fractional shares will be issued
          pursuant to this Section 5.  The Company, to the extent
          required, shall authorize, free of preemptive rights,
          such number of duly authorized shares of Common Stock as
          shall be required to effect the redemption.

                    Notwithstanding the foregoing, if the Company's
          notice of redemption has been given pursuant to this
          Section 5 and any holder of shares of PIK Preferred Stock
          shall, prior to the close of business on the third
          Business Day preceding the Redemption Date, give written
          notice to the Company pursuant to this Section 5(d)
          hereof of the conversion of any or all of the shares to
          be redeemed held by such holder (accompanied by a
          certificate or certificates for such shares, duly
          endorsed or assigned to the Company), then the conversion
          of such shares to be redeemed shall become effective as
          provided in Section 8.  In the event that such redemption
          was pursuant to a Mandatory Redemption, any shares so
          converted shall, at the option of the Company, be counted
          as shares required to be redeemed pursuant to such
          Mandatory Redemption.

                         (e)  The election by the Company to redeem
          shares of PIK Preferred Stock pursuant to this Section 5
          hereof shall become irrevocable only on the relevant
          Optional Redemption Date.

                    6.  Redemption Upon a Change of Control.  (a) 
          Upon the occurrence of a Change of Control (as defined
          below), the Company shall make an offer (the "Change of
          Control Offer") to each holder of PIK Preferred Stock to
          repurchase all or any part of such holder's PIK Preferred
          Stock at a purchase price equal to $1,000 per share, plus
          an amount equal to accrued and unpaid dividends to the
          date of redemption (the "Change of Control Redemption
          Date"); provided, however, that no Change of Control
          Offer shall be made, pursuant to this section 6, until
          such time as an offer to repurchase the Senior Notes upon
          a "Change of Control" (as defined therein) on the terms
          and conditions set forth in such Senior Notes and in the
          indenture pursuant to which they were issued (the
          "Indenture") shall have been made to the holders of the
          Senior Notes, and such offer shall have been completed
          and payment in full to the holders of such Senior Notes
          shall have been paid, in accordance with the terms of the
          Senior Notes and the Indenture.  No additional dividends
          shall be accrued or be paid after the Change of Control
          Redemption Date on shares of PIK Preferred Stock tendered
          and redeemed pursuant to the Change of Control Offer. 
          Within thirty (30) days following a Change of Control,
          the Company shall mail a notice to each holder stating: 
          (1) that the Change of Control Offer is being made
          pursuant to this Section 6 and that all shares of PIK
          Preferred Stock tendered will be accepted for payment;
          (2) the purchase price and the Change of Control
          Redemption Date, which shall be no earlier than 30 days
          nor later than 40 days from the date such notice is
          mailed; (3) that any shares of PIK Preferred Stock not
          tendered will continue to accrue dividends in accordance
          with the terms of Section 3; (4) that, unless the Company
          defaults in the payment of the redemption price, all
          shares of PIK Preferred Stock redeemed pursuant to the
          Change of Control Offer shall cease to accrue dividends
          after the Change of Control Redemption Date; (5) that
          holders electing to have any shares of PIK Preferred
          Stock redeemed pursuant to the Change of Control Offer
          will be required to surrender the certificates
          representing such shares; (6) that holders will be
          entitled to withdraw their election if the Company's
          transfer agent receives, not later than the close of
          business on the second Business Day preceding the Change
          of Control Redemption Date, a telegram, telex, facsimile
          transmission or letter setting forth the name of the
          holder, the number of shares delivered for redemption,
          and a statement that such holder is withdrawing his
          election to have such shares redeemed; and (7) that
          holders whose shares are being redeemed only in part will
          be issued new certificates representing shares not
          redeemed by the Company.

                         (b)  On the Change of Control Redemption
          Date, the Company shall, to the extent lawful, (i) accept
          for redemption shares tendered pursuant to the Change of
          Control Offer, (ii) deposit with a bank or trust company
          having an office or agency in the Borough of Manhattan,
          City of New York, and having a capital and surplus of at
          least $500,000,000, an amount equal to the purchase price
          in respect of all shares so tendered, in trust for the
          account of the holders of the shares to be redeemed (and
          so as to be and continue to be available therefor), with
          irrevocable instructions and authority to such bank or
          trust company that such funds be applied to the
          redemption of the shares of PIK Preferred Stock tendered
          pursuant to the Change of Control Offer.  The Company's
          transfer agent shall promptly mail to each holder a
          certificate representing shares surrendered but not
          tendered and not redeemed in accordance with such
          holder's instructions, if any. 

                         (c)  The redemption option of the holder
          of PIK Preferred Stock upon a Change of Control pursuant
          to this Section 6 may constitute an "issuer tender offer"
          as defined in Rule 13e-4 under the Securities Exchange
          Act of 1934, as amended (the "Exchange Act"), and in such
          event such transaction may be subject to the requirements
          of Rule 13e-4, including the filing of an Issuer Tender
          Offer Statement on Schedule 13E-4 with the Securities and
          Exchange Commission and the furnishing of certain
          information contained therein to such holder.  If such a
          Change of Control occurs, (i) the Company will comply
          with all appropriate rules and regulations applicable to
          "issuer tender offers" at such time and (ii) each holder
          of PIK Preferred Stock will be entitled to withdraw the
          notice of redemption given hereunder throughout the
          "issuer tender offer."  Upon the expiration date of the
          "issuer tender offer," such notice shall be irrevocable
          and shall terminate all conversion rights with respect to
          the PIK Preferred Stock to be redeemed under this Section
          6.  The Company shall comply with the requirements of
          Rule 14e-1 under the Exchange Act and any other
          securities laws and regulations thereunder to the extent
          such laws and regulations are applicable in connection
          with the redemption of shares in connection with a Change
          of Control.

               (d)  "Change of Control" means the occurrence of any
          of the following events:

                         (i)  any Person (as such term is used in
          Sections 13(d) and 14(d) of the Exchange Act), is or
          becomes the Beneficial Owner, directly or indirectly, of
          more than 50% of the total Voting Stock or Total Common
          Equity of the Company; provided, that no Change of
          Control will be deemed to occur pursuant to this clause
          (a) if (x) the Person is a corporation with outstanding
          debt securities having a maturity at original issuance of
          at least one year and if such debt securities are rated
          Investment Grade by S&P or Moody's for a period of at
          least 90 consecutive days, beginning on the date of such
          event (which period will be extended up to 90 additional
          days for as long as the rating of such debt securities is
          under publicly announced consideration for possible
          downgrading by the applicable rating agency), or (y) the
          Person is a corporation (1) that is not, and does not
          have any outstanding debt securities that are, rated by
          S&P, Moody's or any other rating agency of national
          standing at any time during a period of 90 consecutive
          days beginning on the date of such event (which period
          will be extended up to an additional 90 days for as long
          as any such rating agency has publicly announced that
          such corporation or debt thereof will be rated), unless
          after such date but during such period debt securities of
          such corporation having a maturity at original issuance
          of at least one year are rated Investment Grade by S&P or
          Moody's and remain so rated for the remainder of the
          period referred to in clause (x) above and (2) that, when
          determined as of the Trading Day immediately before and
          the Trading Day immediately after the date of such event,
          has Total Common Equity of at least $5.0 billion
          (provided that, solely for the purpose of calculating
          Total Common Equity as of such later Trading Day, the
          average Closing Price of Common Stock of such Person will
          be deemed to equal the Closing Price of such Common Stock
          on such later Trading Day, subject to the last sentence
          of the definition of "Total Common Equity");

                         (ii)  the Company consolidates with, or
          merges with or into, another Person or sells, assigns,
          conveys, transfers, leases or otherwise disposes of all
          or substantially all of its assets to any Person, or any
          Person consolidates with, or merges with or into, the
          Company, in any such event pursuant to a transaction in
          which the outstanding Voting Stock of the Company is
          converted into or exchanged for cash, securities or other
          property, other than any such transaction where (i) the
          outstanding Voting Stock of the Company is converted into
          or exchanged for (1) Voting Stock (other than
          Disqualified Stock) of the surviving or transferee Person
          or (2) cash, securities and other property in an amount
          which could be paid by the Company as a Restricted
          Payment (as such term is defined in Section 4.07 of the
          Indenture) and (ii) immediately after such transaction no
          Person (as such term is used in Sections 13(d) and 14(d)
          of the Exchange Act), is the Beneficial Owner, directly
          or indirectly, of more than 50% of the total Voting Stock
          or Total Common Equity of the surviving or transferee
          Person; provided, that no Change of Control will be
          deemed to occur pursuant to this clause (d) if (x) the
          surviving or transferee Person or the Person referred to
          in clause (d)(ii)(2) is a corporation with outstanding
          debt securities having a maturity at original issuance of
          at least one year and if such debt securities are rated
          Investment Grade by S&P or Moody's for a period of at
          least 90 consecutive days, beginning on the date of such
          event (which period will be extended up to 90 additional
          days for as long as the rating of such debt securities is
          under publicly announced consideration for possible
          downgrading by the applicable rating agency), or (y) the
          surviving or transferee Person or such other Person is a
          corporation (1) that is not, and does not have any
          outstanding debt securities that are, rated by S&P,
          Moody's or any other rating agency of national standing
          at any time during a period of 90 consecutive days
          beginning on the date of such event (which period will be
          extended up to an additional 90 days for as long as any
          such rating agency has publicly announced that such
          corporation or debt thereof will be rated), unless after
          such date but during such period debt securities of such
          corporation having a maturity at original issuance of at
          least one year are rated Investment Grade by S&P or
          Moody's and remain so rated for the remainder of the
          period referred to in clause (x) above and (2) that, when
          determined as of the Trading Day immediately before and
          the Trading Day immediately after the date of such event,
          has Total Common Equity of at least $5.0 billion
          (provided that, solely for the purpose of calculating
          Total Common Equity as of such later Trading Day, the
          average Closing Price of the Common Stock of such Person
          will be deemed to equal the Closing Price of such Common
          Stock on such later Trading Day, subject to the last
          sentence of the definition of "Total Common Equity"); or

                         (iii)  during any consecutive two-year
          period, individuals who at the beginning of such period
          constituted the Board of Directors of the Company
          (together with any directors who are members of the Board
          of Directors on the date hereof and any new directors
          whose election by such Board of Directors or whose
          nomination for election by the stockholders of the
          Company was approved by a vote of 66 2/3% of the
          directors then still in office who were either directors
          at the beginning of such period or whose election or
          nomination for election was previously so approved) cease
          for any reason to constitute a majority of the Board of
          Directors of the Company then in office.

                    Any event that would constitute a Change of
          Control pursuant to clause (i) or (ii) above but for the
          proviso thereto will not be deemed to be a Change of
          Control until such time (if any) as the conditions
          described in such proviso cease to have been met.

               (e)  For the purposes of this Section 6 the
          following terms are defined as follows:

                    (i)  "Beneficial Owner" means a beneficial
          owner as defined in Rules 13d-3 and 13d-5 under the
          Exchange Act (or any successor rules), including the
          provision of such rules that a Person shall be deemed to
          have beneficial ownership of all securities that such
          Person has a right to acquire within 60 days of the date
          of determination of beneficial ownership of such
          security; provided that a Person will not be deemed a
          beneficial owner of, or to own beneficially, any
          securities if such beneficial ownership (1) arises solely
          as a result of a revocable proxy delivered in response to
          a proxy or consent solicitation made pursuant to, and in
          accordance with, the Exchange Act and (2) is not also
          then reportable on Schedule 13D (or any successor
          schedule) under the Exchange Act.

                    (ii)  "Business Day" means any day other than a
          Saturday, a Sunday or a day on which banking institutions
          in the City of New York or at a place of payment are
          authorized by law, regulation or executive order to
          remain closed.

                    (iii)  "Capital Stock" means (i) in the case of
          a corporation, corporate stock, (ii) in the case of an
          association or other business entity, any and all shares,
          interests, participations, rights or other equivalents
          (however designated) of corporate stock and (iii) in the
          case of a partnership, partnership interests (whether
          general or limited) and any other interest or
          participation that confers on a Person the right to
          receive a share of the profits and losses of, or
          distributions of assets of, such partnership.

                    (iv)  "Common Stock" of any Person means
          Capital Stock of such Person that does not rank prior, as
          to the payment of dividends or as to the distribution of
          assets upon any voluntary or involuntary liquidation,
          dissolution or winding up of such Person, to shares of
          Capital Stock of any other class of such Person.

                    (v)  "Closing Price" on any Trading Day with
          respect to the per share price of any shares of Capital
          Stock means the last reported sale price regular way or,
          in case no such reported sale takes place on such day,
          the average of the reported closing bid and asked prices
          regular way, in either case on the New York Stock
          Exchange or, if such shares of Capital Stock are not
          listed or admitted to trading on such exchange, on the
          principal national securities exchange on which such
          shares are listed or admitted to trading or, if not
          listed or admitted to trading on any national securities
          exchange, on the Nasdaq National Market or, if such
          shares are not listed or admitted to trading on any
          national securities exchange or quoted on Nasdaq but the
          issuer is a Foreign Issuer (as defined in Rule 3b-4(b)
          under the Exchange Act) and the principal securities
          exchange on which such shares are listed or admitted to
          trading is a Designated Offshore Securities Market (as
          defined in Rule 902(a) under the Securities Act), the
          average of the reported closing bid and asked prices
          regular way on such principal exchange, or, if such
          shares are not listed or admitted to trading on any
          national securities exchange or quoted on Nasdaq and the
          issuer and principal securities exchange do not meet such
          requirements, the average of the closing bid and asked
          prices in the over-the-counter market as furnished by any
          New York Stock Exchange member firm that is selected from
          time to time by the Company for that purpose, or if no
          such bid and asked prices can be obtained from any such
          firm, the fair market value of such Capital Stock on such
          day as determined in good faith by the Board of
          Directors.

                    (vi)  "Disqualified Stock" means any Capital
          Stock which, by its terms (or by the terms of any
          security into which it is convertible or for which it is
          exchangeable), or upon the happening of any event,
          matures or is mandatorily redeemable, pursuant to a
          sinking fund obligation or otherwise, or is redeemable at
          the option of the holder thereof, in whole or in part, on
          or prior to the maturity date of the Senior Notes,
          provided, however, that any Capital Stock which would not
          constitute Disqualified Stock but for provisions thereof
          giving holders thereof the right to require the Company
          to repurchase or redeem such Capital Stock upon the
          occurrence of a Change of Control occurring prior to the
          Final Mandatory Redemption Date shall not constitute
          Disqualified Stock if the change in control provisions
          applicable to such Capital Stock are no more favorable to
          the holders of such Capital Stock than the provisions
          applicable to the Senior Notes and such Capital Stock
          specifically provides that the Company will not
          repurchase or redeem any such stock pursuant to such
          provisions prior to the Company's repurchase of such
          Senior Notes as are required to be repurchased pursuant
          to the terms of Section 4.16 of the Indenture.

                    (vii)  "Investment Grade" means a rating of at
          least BBB-, in the case of S&P, or Baa3, in the case of
          Moody's.

                    (viii)  "Person" means any individual,
          corporation, partnership, joint venture, association,
          joint-stock company, trust or unincorporated organization
          (including any subdivision or ongoing business of any
          such entity or substantially all of the assets of any
          such entity, subdivision or business).

                    (ix)  "Total Common Equity" of any Person
          means, as of any date of determination (and as modified
          for purposes of the definition of "Change of Control"),
          the product of (i) the aggregate number of outstanding
          primary shares of Common Stock of such Person on such day
          (which shall not include any options or warrants on, or
          securities convertible or exchangeable into, shares of
          Common Stock of such Person) and (ii) the average Closing
          Price of such Common Stock over the 20 consecutive
          Trading Days immediately preceding such day.  If no such
          Closing Price exists with respect to shares of any such
          class, the value of such shares for purposes of clause
          (ii) of the preceding sentence shall be determined by the
          Board of Directors of the Company in good faith and
          evidenced by a resolution of the Board of Directors.

                    (x)  "Trading Day," with respect to a
          securities exchange or automated quotation system, means
          a day on which such exchange or system is open for a full
          day of trading.

                    (xi)  "Voting Stock" of any Person means
          Capital Stock of such Person which ordinarily has voting
          power for the election of directors (or Persons
          performing similar functions) of such Person, whether at
          all times or only so long as no senior class of
          securities has such voting power by reason of any
          contingency.

                    7.  Voting Rights.  (a) Except as herein
          provided or as otherwise required by law, holders of PIK
          Preferred Stock shall have no voting rights.  Whenever,
          at any time or times, dividends payable on the shares of
          Exchangeable Preferred Stock at the time outstanding
          shall be cumulatively in arrears for two consecutive
          quarterly  dividend periods, the holders of all shares of
          PIK Preferred Stock and any shares of Parity Securities
          upon which like voting rights have been conferred and are
          exercisable (the PIK Preferred Stock and any such Parity
          Securities, collectively for purposes of this Section 7,
          the "Defaulted Preferred Stock"), shall be entitled to
          elect one director of the Company at the Company's next
          annual meeting of stockholders and at each subsequent
          annual meeting of stockholders; and if such dividends on
          the Exchangeable Preferred Stock shall continue in
          arrears for four consecutive quarterly dividend periods,
          such holders of Defaulted Preferred Stock shall be
          entitled thereafter to elect one additional director of
          the Company at such next annual meeting and at each
          subsequent annual meeting; provided, however, the shares
          of Defaulted Preferred Stock shall be entitled to
          exercise their voting rights at a special meeting of the
          holders of shares of Defaulted Preferred Stock as set
          forth in paragraphs (b) and (c) of this Section 7.  At
          elections for such directors, each holder of PIK
          Preferred Stock shall be entitled to one vote for each
          share held (the holders of shares of any other series of
          Defaulted Preferred Stock ranking on such a parity being
          entitled to such number of votes, if any, for each share
          of stock held as may be granted to them).  Upon the
          vesting of such right of the holders of Defaulted
          Preferred Stock, the maximum authorized number of members
          of the Board of Directors shall automatically be
          increased by one or two, as the case may be, and the
          vacancies so created shall be filled by vote of the
          holders of outstanding Defaulted Preferred Stock as
          hereinafter set forth.  The right of holders of Defaulted
          Preferred Stock, voting separately as a class without
          regard to series, to elect members of the Board of
          Directors as aforesaid shall continue until such time as
          all dividends accumulated and unpaid on the Exchangeable
          Preferred Stock shall have been paid or declared and
          funds set aside for payment in full, at which time such
          right shall terminate, except as herein or by law
          expressly provided, subject to revesting in the event of
          each and every subsequent default of the character above
          mentioned.

                         (b)  Whenever such voting right shall have
          vested, such right may be exercised initially either at a
          special meeting of the holders of shares of Defaulted
          Preferred Stock called as hereinafter provided, or at any
          annual meeting of stockholders held for the purpose of
          electing directors, and thereafter at such meeting or by
          the written consent of such holders pursuant to Section
          228 of the DGCL.

                         (c)  At any time when such voting right
          shall have vested in the holders of shares of Defaulted
          Preferred Stock entitled to vote thereon, and if such
          right shall not already have been initially exercised, an
          officer of the Company shall, upon the written request of
          10% of the holders of record of shares of such Defaulted
          Preferred Stock then outstanding, addressed to the
          Secretary of the Company, call a special meeting of
          holders of shares of such Defaulted Preferred Stock. 
          Such meeting shall be held at the earliest practicable
          date upon the notice required for special meetings of
          stockholders at the place for holding annual meetings of
          stockholders of the Company or, if none, at a place
          designated by the Secretary of the Company.  If such
          meeting shall not be called by the proper officers of the
          Company within 30 days after the personal service of such
          written request upon the Secretary of the Company, or
          within 30 days after mailing the same within the United
          States, by registered mail, addressed to the Secretary of
          the Company at its principal office (such mailing to be
          evidenced by the registry receipt issued by the postal
          authorities), then holders of record of 10% of the shares
          of Defaulted Preferred Stock then outstanding may
          designate in writing any person to call such meeting at
          the expense of the Company, and such meeting may be
          called by such person so designated upon the notice
          required for special meetings of stockholders and shall
          be held at the same place as is elsewhere provided in
          this paragraph.  Any holder of shares of Defaulted
          Preferred Stock then outstanding that would be entitled
          to vote at such meeting shall have access to the stock
          books of the Company's transfer agent for the purpose of
          causing a meeting of stockholders to be called pursuant
          to the provisions of this paragraph.  Notwithstanding the
          provisions of this paragraph, however, no such special
          meeting shall be called or held during a period within 45
          days immediately preceding the date fixed for the next
          annual meeting of stockholders.

                         (d)  Subject to the provisions hereof, the
          directors elected pursuant to this section shall serve
          until the next annual meeting or until their respective
          successors shall be elected and qualified.  Any director
          elected by the holders of Defaulted Preferred Stock may
          be removed by, and shall not be removed otherwise than
          by, the vote of the holders of a majority of the
          outstanding shares of the Defaulted Preferred Stock who
          were entitled to participate in such election of
          directors, voting as a separate class, without regard to
          series, at a meeting called for such purpose or by
          written consent as permitted by law and the Certificate
          of Incorporation and by-laws of the Company.  If the
          office of any director elected by the holders of
          Defaulted Preferred Stock, voting as a class, without
          regard to series, becomes vacant by reason of death,
          resignation, retirement, disqualification or removal from
          office or otherwise, the remaining director elected by
          the holders of Defaulted Preferred Stock, voting as a
          class, without regard to series, may choose a successor
          who shall hold office for the unexpired term in respect
          of which such vacancy occurred.  Upon any termination of
          the right of the holders of Defaulted Preferred Stock to
          vote for directors as herein provided, the term of office
          of all directors then in office elected by the holders of
          Defaulted Preferred Stock, voting as a class, without
          regard to series, shall terminate immediately.  Whenever
          the terms of office of the directors elected by the
          holders of Defaulted Preferred Stock, voting as a class,
          without regard to series, shall so terminate and the
          special voting powers vested in the holders of Defaulted
          Preferred Stock shall have expired, the number of
          directors shall be such number as may be provided for in
          the Company's by-laws irrespective of any increase made
          pursuant to the provisions of this Section 7.
                    8.  Conversion Rights. (a) Each share of Series
          C PIK Preferred Stock may be converted, at any time and
          at the option of the holder, into 54.98 fully paid, non-
          assessable shares of Common Stock of the Company on and
          subject to the terms and conditions of this Section 8.

                         (b)  The number of shares of Common Stock
          issuable upon conversion of each share of the Series C
          PIK Preferred Stock shall be determined by the Conversion
          Price (as hereinafter defined) in effect on the date of
          conversion (calculated as to each conversion to the
          nearest 1/100th of a share).  The Conversion Price shall
          initially equal $18.19; provided, however, that such
          Conversion Price shall be adjusted and readjusted from
          time to time as provided in this Section 8 and, as so
          adjusted and readjusted, shall remain in effect until a
          further adjustment or readjustment thereof is required by
          this Section 8.

                         (c)  Except as may be provided by the
          Board of Directors, upon conversion of the PIK Preferred
          Stock, the Company is not obligated to make any payment
          or adjustment with respect to dividends accrued on the
          PIK Preferred Stock through the date of conversion unless
          the holder of the shares of PIK Preferred Stock being
          converted was the record holder of such shares on the
          record date for the payment of such dividends.

                         (d)  Upon surrender to the Company at the
          office of the transfer agent or such other place or
          places, if any, as the Board of Directors may determine,
          of certificates duly endorsed to the Company or in blank
          for shares of PIK Preferred Stock to be converted
          together with appropriate evidence of the payment of any
          transfer or similar tax, if required, and written
          instructions to the Company requesting conversion of such
          shares and specifying the name and address of the person,
          corporation, firm or other entity to whom such shares of
          Common Stock are to be issued, the Company shall issue
          the number of full shares of Common Stock rounded to the
          nearest whole number issuable upon conversion thereof as
          of the time of such surrender and as promptly as
          practicable thereafter will deliver certificates for such
          shares of Common Stock.  No fractional shares of Common
          Stock shall be issued pursuant to this Section 8.  Upon
          surrender of a certificate representing shares of PIK
          Preferred Stock to be converted in part, in addition to
          the foregoing, the Company shall also issue to such
          holder a new certificate representing any unconverted
          shares of PIK Preferred Stock represented by the
          certificate surrendered for conversion.

                         (e)  The Company shall pay all
          documentary, stamp, or similar issue or transfer tax due
          on the issue of shares of Common Stock issuable upon
          conversion of the PIK Preferred Stock; provided, however,
          that the holder of shares of PIK Preferred Stock so
          converted shall pay any such tax which is due because
          such shares are to be issued in the name other than that
          of such holder.

                         (f)  The Conversion Price in effect at any
          time shall be adjusted as follows:
                              (1)  If the Company shall, at any
               time or from time to time, effect a subdivision of
               the outstanding Common Stock, the Conversion Price
               in effect immediately before such subdivision shall
               be proportionately decreased and, conversely, if the
               Company shall, at any time or from time to time,
               effect a combination of the outstanding Common
               Stock, the Conversion Price in effect immediately
               before such combination shall be proportionately
               increased.  Any adjustment under this subdivision
               shall become effective at the close of business on
               the record date fixed for the applicable subdivision
               or combination.

                              (2)  In the event the Company shall,
               at any time or from time to time, make or issue to
               all holders of shares of Common Stock (or fix a
               record date for the determination of holders of
               Common Stock entitled to receive), a dividend or
               other distribution payable in shares of Common
               Stock, then the Conversion Price then in effect
               shall be decreased as of the time of such issuance
               (or, in the event such a record date shall have been
               fixed, as of the close of business on such record
               date) in accordance with the following formula:
                                     0
                         C1 = C X -------
                                   0 + N

          where:

                    C1   =    the adjusted Conversion Price.

                    C    =    the current Conversion Price.

                    O    =    the number of shares of Common Stock
                              outstanding immediately prior to the
                              applicable issuance (or the close of
                              business on the record date).

                    N    =    the number of additional shares of
                              Common Stock issued in payment of
                              such dividend of distribution.

                              (3)  In the event that the Company
               shall issue or sell any shares of Common Stock prior
               to the second anniversary of the date of issuance of
               the PIK Preferred Stock pursuant to a transaction
               exempt from the registration requirement of the
               Securities Act of 1933, and 120% of the price at
               which such shares of Common Stock were issued or
               sold (the "Issue Price") is less than the Conversion
               Price in effect immediately prior to such issuance
               or sale, then the Conversion Price then in effect
               shall be reduced to an amount equal to 120% of such
               Issue Price.

                              (4)  In the event that the Company
               shall issue or sell any rights, warrants or options
               prior to the second anniversary of the date of
               issuance of the PIK Preferred Stock pursuant to a
               transaction exempt from the registration requirement
               of the Securities Act of 1933 to subscribe for or to
               purchase Common Stock or other securities
               convertible into or exercisable or exchangeable for
               Common Stock with an exercise or conversion price
               (the "Strike Price") which is less than the
               Conversion Price in effect immediately prior to such
               issuance or sale, then the Conversion Price then in
               effect be reduced to the Strike Price.

                         (g)  Anything herein to the contrary
          notwithstanding, no adjustment will be made to the
          Conversion Price by reason of (A) upon the issuance of
          Common Stock, Options or Convertible Securities to
          employees or directors of the Company pursuant to
          employee benefit plans or otherwise, or the issuance of
          Common Stock upon the conversion, exercise or exchange
          thereof, (B) the issuance of Common Stock upon the
          conversion, exercise or exchange of Options or
          Convertible Securities issued and outstanding on the date
          a certificate of designations setting forth this
          resolution is filed with the Secretary of State of the
          State of Delaware, or (C) the issuance of Common Stock
          upon the conversion of the PIK Preferred Stock.

                         (h)  No adjustment in the Conversion Price
          need be made unless the adjustment pursuant to Section
          8(f)(1) and (2) would require an increase or decrease of
          at least 1% in the Conversion Price.
                         (i)  No adjustment need be made for a
          change in the par value of the Common Stock.

                         (j)  Whenever the Conversion Price is
          adjusted, the Company shall promptly mail to holders of
          PIK Preferred Stock a notice of adjustment briefly
          stating the facts requiring the adjustment and the manner
          of computing it.
                         (k)  In case of any consolidation or
          merger of the Company with any other entity (other than a
          wholly-owned subsidiary of the Company), or in case of
          any sale or transfer of all or substantially all of the
          assets of the Company, or in the case of any share
          exchange pursuant to which all of the outstanding shares
          of Common Stock are converted into other securities or
          property, the Company shall make appropriate provision or
          cause appropriate provision to be made so that holders of
          each share of PIK Preferred Stock then outstanding shall
          have the right thereafter to convert such share of PIK
          Preferred Stock into the kind and amount of shares of
          stock and other securities and property receivable upon
          such consolidation, merger, sale, transfer or share
          exchange by a holder of the number of shares of Common
          Stock into which such share of PIK Preferred stock might
          have been converted immediately prior to the effective
          date of such consolidation, merger, sale, transfer or
          share exchange.  If in connection with any such
          consolidation, merger, sale, transfer or share exchange,
          each holder of shares of Common Stock is entitled to
          elect to receive either securities, cash or other assets
          upon completion of such transaction, the Company shall
          provide or cause to be provided to each holder of PIK
          Preferred Stock the right to elect to receive the
          securities, cash or other assets into which the PIK
          Preferred Stock held by such holder shall be convertible
          after completion of any such transaction on the same
          terms and subject to the same conditions applicable to
          holders of the Common Stock (including, without
          limitation, notice of the right to elect, limitations on
          the period in which such election shall be made and the
          effect of failing to exercise the election).  The Company
          shall not effect any such transaction unless the
          provisions of this paragraph have been fulfilled.  The
          above provisions shall similarly apply to successive
          consolidations, mergers, sales, transfers or share
          exchanges.

                         (l)  The Company shall reserve and at all
          times keep available, free from preemptive rights, out of
          its authorized but unissued stock, for the purpose of
          effecting the conversion of the PIK Preferred Stock, such
          number of its duly authorized Common Stock as shall from
          time to time be sufficient to effect the conversion of
          all outstanding PIK Preferred Stock.

                    9.  Limitation and Rights Upon Insolvency. 
          Notwithstanding any other provision of this certificate,
          the Company shall not be required to pay any dividend on,
          or to pay any amount in respect of any redemption of, the
          PIK Preferred Stock at a time when immediately after
          making such payment the Company is or would be rendered
          insolvent (as defined by applicable law), provided that
          the obligation of the Company to make any such payment
          shall not be extinguished in the event the foregoing
          limitation applies.

                    10.  Limitations under the Financing.
          Notwithstanding any other provision of this certificate,
          the Company shall not be required to pay any dividend on,
          or to pay any amount in respect of any redemption of, the
          PIK Preferred Stock if upon, or after, making such
          payment the Company would, or with the passage of time,
          or the giving of notice, or both, would be in default
          under the terms of the Financing, provided that the
          obligation of the Company to make any such payment shall
          not be extinguished in the event the foregoing limitation
          applies.

                    11.  Shares to Be Retired.  Any share of PIK
          Preferred Stock converted, redeemed or otherwise acquired
          by the Company shall be retired and cancelled and shall
          upon cancellation be restored to the status of authorized
          but unissued shares of preferred stock, subject to
          reissuance by the Board of Directors as PIK Preferred
          Stock or shares of preferred stock of one or more other
          series.

                    12. Record Holders.  The Company and the
          Company's transfer agent may deem and treat the record
          holder of any shares of PIK Preferred Stock as the true
          and lawful owner thereof for all purposes, and neither
          the Company nor the Company's transfer agent shall be
          affected by any notice to the contrary.

                    13.  Notice.  Except as may otherwise be
          provided for herein, all notices referred to herein shall
          be in writing, and all notices hereunder shall be deemed
          to have been given upon, the earlier of receipt of such
          notice or three Business Days after the mailing of such
          notice if sent by registered mail (unless first-class
          mail shall be specifically permitted for such notice
          under the terms of this Certificate of Designations) with
          postage prepaid, addressed:  if to the Company, to its
          offices at 200 South Lamar Street, Security Centre, South
          Building, Jackson, Mississippi  39201 (Attention: 
          General Counsel) or to an agent of the Company designated
          as permitted by the Certificate of Incorporation or, if
          to any holder of the PIK Preferred Stock, to such holder
          at the address of such holder of the PIK Preferred Stock
          as listed in the stock record books of the Company (which
          may include the records of the Company's transfer agent);
          or to such other address as the Company or holder, as the
          case may be, shall have designated by notice similarly
          given.
                    IN WITNESS WHEREOF, this Certificate of Rights
          and Preferences has been duly executed this 7th day of
          May, 1996.

                                        MOBILE TELECOMMUNICATION
                                        TECHNOLOGIES CORP.

                                        By: /s/ John E. Welsh, III
                                           __________________________
                                           John E. Welsh, III
                                           Vice Chairman and Chief
                                            Financial Officer



                                 FORM OF
                         STOCK PURCHASE AGREEMENT


                           STOCK PURCHASE AGREEMENT

                    This STOCK PURCHASE AGREEMENT (this "Agree-
          ment"), dated as of ________, 1996, by and between Mobile
          Telecommunication Technologies Corp., a Delaware corpora-
          tion (the "Company"), and ______________________________
          (the "Purchaser").

                                  ARTICLE I.

                     Purchase and Sale of Preferred Stock

                    1.1  Agreement to Purchase and Sell.  Upon the
          basis of the representations and warranties, for the
          consideration, and subject to the terms and conditions
          set forth in this Agreement, the Company agrees to sell
          to the Purchaser, and the Purchaser agrees to purchase
          from the Company, the number of shares set forth next to
          the Purchaser's name on Schedule 1.1 hereto, of a series
          of preferred stock, $.01 par value per share, of the
          Company (the "Preferred Stock") designated as the Series
          A 7.5% Cumulative Convertible Accruing Pay-In-Kind
          Preferred Stock and having the preferences and rights set
          forth in the form of Certificate of Designation attached
          as Exhibit A hereto, in each case free and clear of all
          claims, liens, charges and encumbrances of any nature
          whatsoever, at the Closing referred to in Section 1.2
          hereof, and, in consideration of the sale of the shares
          of Preferred Stock by the Company to the Purchaser, the
          Purchaser agrees to pay in the aggregate to the Company
          $1,000 per Preferred Share (the "Purchase Price") in the
          amount set forth next to the Purchaser's name on Schedule
          1.1 hereto.

                    1.2  Closing.  The closing of the transactions
          contemplated hereby (the "Closing") shall take place at
          the offices of Skadden, Arps, Slate, Meagher & Flom at
          11:00 a.m., Eastern Standard Time, on __________, 1996, or
          at such other place or time as the Purchaser and the
          Company shall mutually agree in writing.  The date on
          which the Closing occurs is hereinafter referred to as
          the "Closing Date."

                    1.3  Delivery and Payment.  At the Closing, (a)
          the Company shall deliver or cause to be delivered to the
          Purchaser (i) a stock certificate evidencing the shares
          of Preferred Stock issued in the name of the Purchaser,
          and (ii) all other documents, instruments and writings
          required to be delivered by the Company to the Purchaser
          pursuant to this Agreement or otherwise required in
          connection herewith, and (b) the Purchaser shall deliver
          or cause to be delivered to the Company (i) the Purchase
          Price, by wire transfer of immediately available funds to
          the account of the Company to be designated by the Compa-
          ny in writing not later than one business day prior to
          the Closing Date, and (ii) all other documents, instru-
          ments and writings required to be delivered by the Pur-
          chaser to the Company pursuant to this Agreement or
          otherwise required in connection herewith.
                                 ARTICLE II.

                Representations and Warranties of the Company

                    The Company hereby represents and warrants to
          the Purchaser as follows:

                    2.1  Incorporation and Organization.   The
          Company is a corporation duly formed, validly existing
          and in good standing under the laws of the State of
          Delaware and has full corporate power and authority to
          own and operate its assets and properties and carry on
          its businesses as presently conducted and is duly quali-
          fied to do business and is in good standing in all juris-
          dictions in which the ownership or occupancy of its
          properties or its activities presently makes such quali-
          fication necessary, except where the failure to so quali-
          fy or be in good standing would not have a material
          adverse effect upon the businesses, properties or assets
          of the Company or any of its Material Subsidiaries.

                    2.2  Authority.  The Company has all requisite
          corporate power and authority to enter into this Agree-
          ment and each other agreement, instrument and document
          required to be executed by the Company in connection
          herewith, and to consummate the transactions contemplated
          hereby and thereby.  The execution and delivery by the
          Company of this Agreement, the Stockholder Agreement in
          the form of Exhibit B-1 hereto (the "Stockholder Agree-
          ment"), the Registration Rights Agreement in the form of
          Exhibit C hereto (the "Registration Rights Agreement"),
          and such other agreements, instruments and documents, and
          the consummation by the Company of the transactions
          contemplated hereby and thereby, have been duly autho-
          rized by all necessary corporate action of the Company. 
          The Board of Directors of the Company has approved the
          issuance and sale of the shares of Preferred Stock (in-
          cluding, without limitation, the conversion of the shares
          of Preferred Stock) and the other transactions contem-
          plated by this Agreement.  This Agreement has been duly
          and validly executed and delivered by the Company and
          constitutes a valid and binding obligation of the Company
          enforceable against the Company in accordance with its
          terms, except as enforcement may be limited by bankrupt-
          cy, insolvency or other similar laws affecting the en-
          forcement of creditors' rights generally and except that
          the availability of equitable remedies, including specif-
          ic performance, is subject to the discretion of the court
          before which any proceeding therefor may be brought.

                    2.3  Capital Structure.  The authorized capital
          stock of the Company consists of 75,000,000 shares of
          common stock and 25,000,000 shares of preferred stock. 
          At the close of business on March 27, 1996, 54,138,156
          shares of Common Stock and 3,750,000 shares of $2.25
          Cumulative Convertible Exchangeable Preferred Stock were
          issued and outstanding.  At the close of business on
          March 27, 1996, a total of 7,648,406 shares of common
          stock were reserved for issuance upon the exercise of (i)
          the conversion rights of the $2.25 Cumulative Convertible
          Exchangeable Preferred Stock, (ii) the options, stock
          appreciation rights and other rights granted under the
          Company's 1988 Executive Incentive Plan, (iii) the op-
          tions, stock appreciation rights and other rights granted
          under the Company's 1990 Executive Incentive Plan, (iv)
          the awards and options granted under the Company's Long-
          Term Incentive Plan, (v) the options granted under the
          Company's 1993 Employee Stock Purchase Plan and (vi) the
          nonqualified options granted to directors of the Company
          who are not officers.  When issued and delivered at the
          Closing against payment therefor as provided herein, the
          shares of Preferred Stock will be duly and validly autho-
          rized and issued, fully paid and nonassessable and not
          subject to preemptive rights.  Except as set forth in
          this Section 2.3, Schedule 2.3 hereto or as contemplated
          by this Agreement, there are no options, warrants, calls,
          rights, commitments or agreements of any character to
          which the Company or any subsidiary of the Company is a
          party or by which it is bound obligating the Company or
          any subsidiary of the Company to issue, deliver or sell,
          or cause to be issued, delivered or sold, additional
          shares of capital stock of the Company or obligating the
          Company to grant, extend or enter into any such option,
          warrant, call, right, commitment or agreement.

                    2.4  Consents and Approvals.  Assuming the
          accuracy of the representation of the Purchaser set forth
          in Section 3.5 hereof and except as may be required
          pursuant to the Securities Exchange Act of 1934, as
          amended (the "Exchange Act"), all authorizations, approv-
          als and consents, if any, required to be obtained from,
          and all registrations, declarations and filings, if any,
          required to be made with all governmental authorities and
          regulatory bodies to permit the Company to execute and
          deliver, and to perform its obligations under, this
          Agreement have been obtained or made, as the case may be,
          and all such authorizations, approvals, consents, regis-
          trations, declarations and filings (collectively, "con-
          sents and filings") are in full force and effect, except
          where failure to obtain and/or maintain in full force and
          effect such consents and filings would not have a materi-
          al adverse effect upon the execution and delivery of, and
          upon the performance of the Company's obligations under,
          this Agreement.

                    2.5  No Violations.  Neither the execution or
          delivery by the Company, nor the consummation by the
          Company of the transactions herein contemplated, nor the
          fulfillment by the Company of the terms and provisions
          hereof (i) will conflict with, violate or result in a
          breach of, any of the terms, conditions or provisions of
          any law, regulation, order, writ, injunction, decree,
          determination or award of any court, governmental depart-
          ment, board, agency or instrumentality or any arbitrator,
          applicable to the Company including, without limitation,
          the Communications Act of 1934, as amended, and the rules
          and regulations promulgated thereunder, (ii) will con-
          flict with, violate or result in a breach of, or consti-
          tute a default under, any of the terms, conditions or
          provisions of the Company's certificate of incorporation,
          certificates of designations and by-laws, (iii) will
          conflict with, violate or result in a breach of, or
          constitute a default under, any of the terms, conditions
          or provisions of any loan agreement, indenture, trust,
          deed or other agreement or instrument to which the Compa-
          ny is a party or by which it is bound or (iv) result in
          the creation or imposition of any lien, charge, security
          interest or encumbrance of any nature whatsoever (collec-
          tively, a "lien") upon any of the Company's property or
          assets (including, without limitation, the shares of
          Preferred Stock to be acquired by the Purchaser pursuant
          to this Agreement).  Except with respect to the Credit,
          Security, Guaranty and Pledge Agreement dated as of
          December 21, 1995 among Skytel Corp., the Company and
          certain subsidiaries thereof, certain lenders, Chemical
          Bank, Credit Lyonnais New York Branch, and J.P. Morgan
          Securities Inc. (the "Credit Agreement") which default
          shall be cured upon closing of this transaction, the
          Company is not in default under any agreement to which it
          is a party which default could impair its ability to
          perform its obligation under this Agreement, except where
          such default would not have a material adverse effect on
          Mtel's ability to perform its obligation under this
          Agreement.

                    2.6  Public Documents.  The Company has fur-
          nished or made available to the Purchaser true and com-
          plete copies of each report, schedule, registration
          statement and definitive proxy statement filed by the
          Company with the Securities and Exchange Commission (the
          "Commission") since January 1, 1995 (including the 10-K
          to be filed for the year ended December 31, 1995) (the
          "SEC Documents"), which are all the documents (other than
          preliminary proxy materials) that the Company was re-
          quired to file with the Commission since such date.  As
          of their respective dates, the SEC Documents complied in
          all material respects with the requirements of the Secu-
          rities Act of 1933, as amended (the "Securities Act"),
          the Exchange Act and the rules and regulations of the
          Commission thereunder applicable to such SEC Documents
          and none of the SEC Documents contained any untrue state-
          ment of a material fact or omitted to state a material
          fact required to be stated therein or necessary in order
          to make the statements therein not misleading.  Except to
          the extent information contained in any SEC Document has
          been revised or superseded by a later-filed SEC Document,
          none of the SEC Documents currently contains any untrue
          statement of a material fact or omits to state a material
          fact required to be stated therein or necessary in order
          to make the statements therein, in light of the circum-
          stances under which they are made, not misleading.  The
          financial statements of the Company included in the SEC
          Documents comply as to form in all material respects with
          applicable accounting requirements and the published
          rules and regulations of the Commission with respect
          thereto, have been prepared in all material respects in
          accordance with generally accepted accounting principles
          applied on a consistent basis during the periods involved
          (except as may be permitted by the rules of the Commis-
          sion) and fairly present in all material respects (sub-
          ject, in the case of the unaudited statements, to normal,
          recurring audit adjustments) the consolidated financial
          position of the Company and its consolidated subsidiaries
          as at the dates thereof and the consolidated results of
          their operations and changes in financial position for
          the periods then ended.

                    2.7  Absence of Certain Changes or Events. 
          Except (x) as disclosed in (i) Schedule 2.7 hereto, (ii)    
      the SEC Documents filed prior to the date of this Agree-
          ment or (y) as contemplated by, permitted by or disclosed
          in this Agreement, since the date of the most recent
          audited financial statements included in the SEC Docu-
          ments, the Company and its subsidiaries have conducted
          their respective businesses in the ordinary course, and
          there has not been any material adverse change in the
          financial condition, results of operations, business,
          properties, assets or liabilities of the Company or any
          of its Material Subsidiaries (as defined below)(the
          Purchaser acknowledges that for purposes of this Agree-
          ment any fluctuations in the market value of the
          Company's common stock shall not constitute a material
          adverse change).  "Material Subsidiaries" shall mean
          Skytel Corp., Destineer, Inc. and Mtel International,
          Inc.

                    2.8  Exemption from Securities Act.  Assuming
          that the representations, warranties and acknowledgments
          of the Purchaser provided for in Article III of this
          Agreement or otherwise herein are true and correct, the
          sale of the shares of Preferred Stock pursuant to this
          Agreement will be exempt from the registration provisions
          of the Securities Act, and the registration provisions of
          any blue sky or other state securities law or regulation
          (hereinafter collectively referred to as "blue sky laws")
          of any applicable jurisdiction.

                                 ARTICLE III.

               Representations and Warranties of the Purchaser

                    The Purchaser hereby represents and warrants to
          the Company as follows:

                    3.1  Incorporation and Organization.  The Pur-
          chaser is a corporation duly formed, validly existing and
          in good standing under the laws of the State of        
                 and has full corporate power and authority to own and
          operate its assets and properties and carry on its busi-
          nesses as presently conducted.

                    3.2  Authority.  The Purchaser has all requisite
          power and authority (corporate, or otherwise) to enter
          into this Agreement and each other agreement, instrument
          and document required to be executed by the Purchaser in
          connection herewith, and to consummate the transactions
          contemplated hereby and thereby.  The execution and
          delivery by the Purchaser of this Agreement, the Stock-
          holder Agreement, the Registration Rights Agreement, and
          such other agreements, instruments and documents, and the
          consummation by the Purchaser of the transactions contem-
          plated hereby and thereby, have been duly authorized by
          all necessary action of the Purchaser.  This Agreement
          has been duly and validly executed and delivered by the
          Purchaser and constitutes a valid and binding obligation
          of the Purchaser enforceable against the Purchaser in
          accordance with its terms, except as enforcement may be
          limited by bankruptcy, insolvency or other similar laws
          affecting the enforcement of creditors' rights generally
          and except that the availability of equitable remedies,
          including specific performance, is subject to the discre-
          tion of the court before which any proceeding therefor
          may be brought.

                    3.3  Consents and Approvals.  Assuming the
          accuracy of the representation of the Company set forth
          in Section 2.5 hereof and except as may be required
          pursuant to the Exchange Act, all authorizations, approv-
          als and consents, if any, required to be obtained from,
          and all registrations, declarations and filings, if any,
          required to be made with, all governmental authorities
          and regulatory bodies to permit the Purchaser to execute
          and deliver, and to perform its obligations under, this
          Agreement have been obtained or made, as the case may be,
          and all such authorizations, approvals, consents, regis-
          trations, declarations and filings (collectively, "con-
          sents and filings") are in full force and effect, except
          where failure to obtain and/or maintain in full force and
          effect the consents and filings would not have a material
          adverse effect upon the execution and delivery of, and
          upon the performance of the Purchaser's obligations
          under, this Agreement.

                    3.4  No Violations.  Neither the execution or
          delivery by the Purchaser of this Agreement, nor the
          consummation by the Purchaser of the transactions herein
          contemplated, nor the fulfillment by the Purchaser of the
          terms and provisions hereof (i) will conflict with,
          violate or result in a breach of, any of the terms,
          conditions or provisions of any law, regulation, order,
          writ, injunction, decree, determination or award of any
          court, governmental department, board, agency or instru-
          mentality or any arbitrator, applicable to the Purchaser
          including, without limitation, the Communications Act of
          1934, as amended, and the rules and regulations promul-
          gated thereunder, (ii) will conflict with, violate or
          result in a breach of, or constitute a default under, any
          of the terms, conditions or provisions of the Purchaser's
          certificate of incorporation (or other organizational
          documents) and by-laws, if any, or (iii) will conflict
          with, violate or result in a breach of, or constitute a
          default under, any of the terms, conditions or provisions
          of any loan agreement, indenture, trust, deed or other
          agreement or instrument to which the Purchaser is a party
          or by which it or he is bound, except where such con-
          flict, violation or breach will not have a material
          adverse effect on the Purchaser's execution, delivery,
          consummation or fulfillment of this Agreement.  The
          Purchaser is not in default under any agreement to which
          it is a party which default could materially adversely
          impair its ability to perform its obligations under this
          Agreement.

                    3.5  Investment Representation.  The Purchaser
          is acquiring the shares of Preferred Stock (including any
          shares of Common Stock to be acquired by the Purchaser
          upon conversion of the shares of Preferred Stock) (col-
          lectively, the "Company Securities") for its own account
          for investment purposes, and not with a view to, or for
          resale in connection with, any distribution thereof
          within the meaning of the Securities Act.  The Purchaser
          understands that the Company Securities have not been
          and, subject to the terms of the Registration Rights
          Agreement, will not be registered under the Securities 
         Act or any blue sky laws in reliance, in part, upon the
          representations, warranties and covenants contained
          herein.  Subject to the provisions, if applicable, set
          forth in the Stockholder Agreement,  the Purchaser also
          understands that it cannot offer for sale, sell or trans-
          fer the Company Securities except as provided below.  The
          Purchaser agrees that the following restrictive legend
          will be placed on certificates representing any or all of
          the Company Securities and that transfer of any or all of
          the Company Securities may be refused by the Company's
          transfer agent unless the Company Securities for which
          transfer is sought are registered under the Securities
          Act and all other applicable federal securities or blue
          sky laws or unless the Purchaser provides information
          satisfactory to the Company that such registration is not
          required:

                    "THIS SECURITY HAS NOT BEEN REGISTERED
               UNDER THE SECURITIES ACT OF 1933, AS AMENDED
               (THE "SECURITIES ACT").  THE HOLDER HEREOF, BY
               PURCHASING THIS SECURITY, AGREES FOR THE BENE-
               FIT OF THE COMPANY THAT THIS SECURITY MAY NOT
               BE RESOLD OR TRANSFERRED AND MAY NOT BE RESOLD, 
               PLEDGED OR OTHERWISE TRANSFERRED OTHER THAN (1) 
               TO THE COMPANY, (2) PURSUANT TO AN EXEMPTION 
               FROM REGISTRATION UNDER THE SECURITIES ACT 
               PROVIDED BY RULE 144 (IF APPLICABLE) UNDER 
               THE SECURITIES ACT, (3) PURSUANT TO ANY
               OTHER APPLICABLE EXEMPTION FROM REGISTRATION
               UNDER THE SECURITIES ACT, OR (4) PURSUANT TO AN
               EFFECTIVE REGISTRATION STATEMENT UNDER THE
               SECURITIES ACT, IN EACH CASE IN ACCORDANCE WITH
               ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF
               THE UNITED STATES.

                    Subject to the provisions, if applicable, set
          forth in the Stockholder Agreement, the Company Securi-
          ties being delivered pursuant to this Agreement shall not
          be transferable by such Purchaser except (i) pursuant to
          an effective registration statement under the Securities
          Act, (ii) pursuant to Rule 144, or any successor rule,
          under the Securities Act, or (iii) upon receipt by the
          Company of a written opinion of counsel to such Purchaser
          reasonably satisfactory to the Company that is knowledge-
          able in securities laws matters, to the effect that the
          proposed transfer is exempt from the registration re-
          quirements of the Securities Act and the relevant blue
          sky laws.

                    The Purchaser and the Purchaser's advisors have
          such knowledge and experience in financial and business
          matters that they are capable of evaluating the merits
          and risks of an investment in the Company Securities;
          have all information deemed by them to be necessary or
          appropriate to evaluate the risks and merits of an in-
          vestment in the Company Securities; have received all
          information requested from the Company; have had the
          opportunity to ask questions of and receive answers from
          representatives of the Company concerning the Company.
                                 ARTICLE IV.

                            Conditions to Closing

                    4.1  Conditions to Obligations of the Purchaser. 
          The obligations of the Purchaser to consummate the trans-
          actions contemplated hereby are subject to the fulfill-
          ment of each of the following conditions:

                    (a)  the representations and warranties of the
          Company contained in this Agreement shall be true and
          correct in all material respects at and as of the Closing
          with the same effect as though such representations and
          warranties had been made as of the Closing;

                    (b)  the Company shall have performed and com-
          plied in all material respects with all other terms
          required by this Agreement to be performed or complied
          with by the Company at or prior to the Closing;

                    (c)  the Purchaser shall have received a certif-
          icate, dated as of the Closing Date, signed by an execu-
          tive officer of the Company and stating that the condi-
          tions set forth in clauses (a) and (b) above have been
          satisfied;

                    (d)  no action or proceeding shall have been
          instituted or threatened for the purpose or with the
          probable or reasonably likely effect of enjoining or
          preventing the consummation of this Agreement or seeking
          damages on account thereof;

                    (e)  the Company shall have delivered to the
          Purchaser a copy of the Stockholder Agreement, duly
          executed by the Company;

                    (f)  the Company shall have delivered to the
          Purchaser a copy of the Registration Rights Agreement,
          duly executed by the Company; and

                    (g)  the Company shall have delivered to the
          Purchaser a certified copy of the resolutions of the
          Board of Directors of the Company authorizing the trans-
          actions contemplated hereby.

                    4.2  Conditions to Obligations of the Company. 
          The obligations of the Company to consummate the transac-
          tions contemplated hereby are subject to the fulfillment
          of the following conditions:

                    (a)  the representations and warranties of the
          Purchaser contained in this Agreement shall be true and
          correct in all material respects at and as of the Closing
          with the same effect as though such representations and
          warranties had been made as of the Closing;

                    (b)  the Purchaser shall have performed and
          complied in all material respects with all other terms
          required by this Agreement to be performed or complied
          with by the Purchaser at or prior to the Closing;

                    (c)  the Company shall have received a certifi-
          cate from the Purchaser, dated as of the Closing Date,
          one of which shall have been signed by a duly authorized
          officer of the Purchaser, stating that the conditions set
          forth in clauses (a) and (b) above have been satisfied;

                    (d)  no action or proceeding shall have been
          instituted or threatened for the purpose or with the
          probable or reasonably likely effect of enjoining or
          preventing the consummation of this Agreement or seeking
          damages on account thereof;

                    (e)  the Purchaser shall have delivered to the
          Purchaser a copy of the Stockholder Agreement, duly
          executed by the Purchaser; and

                    (f)  the Purchaser shall have delivered to the
          Company a copy of the Registration Rights Agreement, duly
          executed by the Purchaser.

                                  ARTICLE V.

                                 Termination

                    5.1  Termination.  This Agreement may be termi-
          nated prior to the Closing by (a) the mutual consent of
          the Purchaser and the Company, (b) the Company (i) upon
          the failure of the Purchaser to perform or comply in all
          material respects with any of its covenants or agreements
          contained herein prior to the Closing, (ii) if any repre-
          sentation or warranty of the Purchaser hereunder shall
          not have been true and correct in all material respects
          as of the time at which it was made, or (iii) pursuant to
          Section 5.3 hereof, (c) the Purchaser (i) upon the fail-
          ure of the Company to perform or comply in all material
          respects with any of its covenants or agreements con-
          tained herein prior to the Closing, or (ii) if any repre-
          sentation or warranty of the Company hereunder shall not
          have been true and correct in all material respects as of
          the time at which such was made; provided, however, that
          no party may terminate this Agreement pursuant to clauses
          (b)(i) or (ii) or (c)(i) or (ii) above if such party is,
          at the time of any such attempted termination, in breach
          of any term hereof.  The termination by any party pursu-
          ant to this Section 5.1 shall not be deemed a waiver of
          any claim such party may have against the other party or
          parties hereunder.

                                 ARTICLE VI.

                                Miscellaneous

                    6.1  Collateral Agreements, Amendments and
          Waivers.   This Agreement (together with the documents
          delivered pursuant hereto) supersedes all prior docu-
          ments, understandings and agreements, oral or written,
          relating to this transaction and, except for any confi-
          dentiality agreement currently existing between the
          parties, constitutes the entire understanding between the
          parties with respect to the subject matter hereof.  Any
          modification or amendment to, or waiver of, any provision
          of this Agreement may be made only by an instrument in 
         writing executed by the party against whom enforcement
          thereof is sought.

                    6.2  Successors and Assigns.  Neither the
          Purchaser's nor the Company's rights or obligations under
          this Agreement may be assigned.  Any assignment in viola-
          tion of the foregoing shall be null and void.  Subject to
          the preceding sentences of this Section 6.2, the provi-
          sions of this Agreement (and, unless otherwise expressly
          provided therein, of any document delivered pursuant to
          this Agreement) shall be binding upon and inure to the
          benefit of the parties hereto and their respective suc-
          cessors and assigns.

                    6.3  Survival of Representations, Warranties and
          Agreements.  None of the representations, warranties and
          covenants of the parties contained in this Agreement
          shall survive the Closing.

                    6.4  Expenses.  Each party shall pay all costs
          and expenses incurred by it in connection with the nego-
          tiation, execution and delivery of this Agreement and the
          transactions contemplated hereby.

                    6.5  Invalid Provisions.  If any provision of
          this Agreement is held to be illegal, invalid or unen-
          forceable under present or future laws, then, if possi-
          ble, such illegal, invalid or unenforceable provision
          will be modified to such extent as is necessary to comply
          with such present or future laws and such modification
          shall not affect any other provision hereof, provided
          that if such provision may not be so modified such ille-
          gality, invalidity or unenforceability will not affect
          any other provision, but this Agreement will be reformed,
          construed and enforced as if such invalid, illegal or
          unenforceable provision had never been contained herein.

                    6.6  Notices.  In any case where any notice or
          other communication is required or permitted to be given
          hereunder (including, without limitation, any change in
          the information set forth in this Section 6.6) such
          notice or communication shall be in writing and (a)
          personally delivered, (b) sent by registered United
          States mail,, postage prepaid, return receipt requested,
          (c) transmitted by telecopy or (d) sent by way of a
          recognized overnight courier service, postage prepaid,
          return receipt requested with instructions to deliver on
          the next business day, in each case as follows:

                              If to the Company, to:

                              Mobile Telecommunication Technologies Corp.
                              110 East 59th Street
                              36th Floor
                              New York, New York  10022
                              Attention: John E. Welsh, III
                              Telecopy:  (212) 735-0808

                              with a copy to:

                              Mobile Telecommunication
                              Technologies Corp.     
                              200 South Lamar Street
                              Security Centre, South Building
                              Jackson, Mississippi  39201
                              Attention: Leonard G. Kriss, Esq.
                              Telecopy:  (601) 944-7291

                              If to the Purchaser, to:

                    6.7  Public Announcement.  Until the termination
          of this Agreement, neither the Company nor the Purchaser
          shall issue or cause the publication of any press release
          or other public announcement with respect to the transac-
          tions contemplated by this Agreement without the consent
          of the other parties, which consent shall not be unrea-
          sonably withheld, provided that each party may issue such
          press releases or public announcements as shall be re-
          quired by law in which event such party shall give the
          other parties a reasonable opportunity to review and
          comment thereon.

                    6.8  Reports to Holders of Shares of Preferred
          Stock.  As long as the Purchaser owns any shares of
          Preferred Stock, within 15 business days after the Compa-
          ny files with the Commission copies of its annual re-
          ports, quarterly reports and other current reports (or
          copies of such portions of any of the foregoing as the
          Commission may by rules and regulations prescribe) that
          it is required to file with the Commission pursuant to
          Section 13, 14 or 15(d) of the Exchange Act, the Company
          shall furnish a copy of the same to the Purchaser.

                    6.9  No Third-Party Beneficiaries.  No person or
          entity not a party to this Agreement shall be deemed to
          be a third-party beneficiary hereunder or entitled to any
          rights hereunder.

                    6.10  GOVERNING LAW.  THIS AGREEMENT SHALL BE
          GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF
          THE STATE OF DELAWARE, WITHOUT REGARD TO PRINCIPLES OF
          CONFLICTS OR CHOICE OF LAW.  THE PARTIES HERETO AGREE
          THAT THE VENUE WITH RESPECT TO ANY ACTION OR SUIT COM-
          MENCED BY EITHER OF THEM IN CONNECTION WITH THE TRANSAC-
          TIONS CONTEMPLATED BY THIS AGREEMENT SHALL BE IN A FEDER-
          AL OR STATE COURT OF COMPETENT JURISDICTION IN THE UNITED
          STATES.

                    6.11  Counterparts.  This Agreement may be exe-
          cuted in two or more counterparts, each of which may be 
         executed by one or more of the parties hereto, but all of
          which, when taken together, shall constitute but one
          agreement binding upon all of the parties hereto.

                    6.12  Additional Series of PIK Preferred
          Stock; Registration Rights Agreement.  Subsequent to the
          date hereof, the Company may issue and sell additional
          shares of the Series A Cumulative Convertible Pay-In-Kind
          Preferred Stock and additional series of pay-in-kind
          preferred stock on substantially the same terms set forth
          in the Certificate of Designation (except with regard to
          the conversion price); provided, however, that the amount
          of all shares of pay-in-kind preferred stock issued
          pursuant to this provision and pursuant to this Agreement
          shall not in the aggregate exceed $75,000,000.  In the
          event of such additional issuances, the parties agree to
          enter into an amended Registration Rights Agreement which
          shall add as parties any purchasers of such additional
          shares of pay-in-kind preferred stock, but shall other-
          wise be identical to the Registration Rights Agreement.

                           STOCKHOLDER AGREEMENT

                         Dated as of March 29, 1996

                              by and between

                         MOBILE TELECOMMUNICATION
                            TECHNOLOGIES CORP.

                                  and

                         MICROSOFT CORPORATION
                              TABLE OF CONTENTS

                                                               Page

                                  ARTICLE I

                             CERTAIN DEFINITIONS

               1.1  "Affiliate" . . . . . . . . . . . . . . . .   1
               1.2  "Agreement" . . . . . . . . . . . . . . . .   2
               1.3  "Charitable Institution . . . . . . . . . .   2
               1.4  "Code"  . . . . . . . . . . . . . . . . . .   2
               1.5  "Communications Act"  . . . . . . . . . . .   2
               1.6  "Exchange Act"  . . . . . . . . . . . . . .   2
               1.7  "Group" . . . . . . . . . . . . . . . . . .   2
               1.8  "Microsoft"   . . . . . . . . . . . . . . .   2
               1.9  "Mtel"  . . . . . . . . . . . . . . . . . .   2
               1.10 "Mtel Preferred Stock"  . . . . . . . . . .   2
               1.11 "Mtel Voting Securities"  . . . . . . . . .   2
               1.12 "Non-Rule 144 Exempt Transaction" . . . . .   2
               1.13 "Option Period" . . . . . . . . . . . . . .   2
               1.14 "Permitted Transfer"  . . . . . . . . . . .   2
               1.15 "Period"  . . . . . . . . . . . . . . . . .   3
               1.16 "Person"  . . . . . . . . . . . . . . . . .   3
               1.17 "Restricted Securities" . . . . . . . . . .   3
               1.18 "SEC" . . . . . . . . . . . . . . . . . . .   3
               1.19 "Securities Act"  . . . . . . . . . . . . .   3
               1.20 "Transfer"  . . . . . . . . . . . . . . . .   3
               1.21 "Transfer Notice" . . . . . . . . . . . . .   3

                                  ARTICLE II

                                  COVENANTS

               2.1  Microsoft Covenants . . . . . . . . . . . .   3
                    (a)  Microsoft Investment in Mtel . . . . .   3
                    (b)  Standstill Provisions  . . . . . . . .   4
                    (c)  Restriction on Transfer  . . . . . . .   5

                                 ARTICLE III

                    REPRESENTATIONS AND WARRANTIES OF MTEL

               3.1  Capitalization  . . . . . . . . . . . . . .   6
               3.2  Authority . . . . . . . . . . . . . . . . .   6
               3.3  Organization  . . . . . . . . . . . . . . .   7
               3.4  Consents and Approvals  . . . . . . . . . .   7
               3.5  No Violations . . . . . . . . . . . . . . .   7

                                  ARTICLE IV

                 REPRESENTATIONS AND WARRANTIES OF MICROSOFT

               4.1  Authority . . . . . . . . . . . . . . . . .   8
               4.2  Organization  . . . . . . . . . . . . . . .   8
               4.3  Consents and Approvals  . . . . . . . . . .   8
               4.4  No Violations . . . . . . . . . . . . . . .   9

                                  ARTICLE V
                                MISCELLANEOUS

               5.1  Termination . . . . . . . . . . . . . . . .   9
               5.2  Assignability . . . . . . . . . . . . . . .   9
               5.3  Notices . . . . . . . . . . . . . . . . . .  10
               5.4  Waivers . . . . . . . . . . . . . . . . . .  10
               5.5  Third Party Rights  . . . . . . . . . . . .  11
               5.6  Choice of Law . . . . . . . . . . . . . . .  11
               5.7  Severability  . . . . . . . . . . . . . . .  11
               5.8  Enforcement of Agreement  . . . . . . . . .  11
               5.9  References to Agreement . . . . . . . . . .  11
               5.10 Headings, etc.  . . . . . . . . . . . . . .  12
               5.11 Counterparts. . . . . . . . . . . . . . . .  12
               5.12 Survival. . . . . . . . . . . . . . . . . .  12
               5.13 Amendments  . . . . . . . . . . . . . . . .  12
               5.14 Entire Agreement  . . . . . . . . . . . . .  12
                            STOCKHOLDER AGREEMENT

                    THIS AMENDED AND RESTATED STOCKHOLDER AGREEMENT
          dated as of March 29, 1996 (this "Agreement") by and
          between Mobile Telecommunication Technologies Corp., a
          Delaware corporation ("Mtel"), and Microsoft Corporation,
          a Washington corporation ("Microsoft").

                             W I T N E S S E T H:

                    WHEREAS, Mtel and Microsoft have entered into a
          Stock Purchase Agreement dated as of March 29, 1996 (the
          "Stock Purchase Agreement") pursuant to which Microsoft
          will acquire shares of Series A 7.5% Cumulative
          Convertible Accruable Pay-In-Kind Preferred Stock, par
          value $.01, of Mtel ("Mtel Preferred Stock"), in
          accordance with the terms and conditions set forth in the
          Stock Purchase Agreement.

                    WHEREAS, Microsoft entered into a stockholders
          agreement (the "Original Stockholders Agreement"), dated
          September 15, 1995, with Mtel in connection with an
          exchange of stock whereby Microsoft acquired shares of
          common stock of Mtel.

                    WHEREAS, Mtel and Microsoft desire to enter
          into certain additional agreements concerning their
          continuing relationship as set forth herein.

                    AND WHEREAS, Mtel and Microsoft desire this
          Agreement to supersede the Original Stockholders
          Agreement as it relates to the parties hereto and the
          matters covered hereby and thereby.

                    NOW, THEREFORE, in consideration of the
          premises and the representations, warranties, covenants
          and agreements contained herein and in the Stock Purchase
          Agreement, the receipt and sufficiency of which is hereby
          acknowledged, the parties hereto, intending to be legally
          bound hereby, agree as follows:

                                  ARTICLE I

                             CERTAIN DEFINITIONS

                    Unless the context otherwise requires,
          capitalized terms not otherwise defined herein shall have
          the respective meanings assigned to them in the Stock
          Purchase Agreement.  Unless the context otherwise
          requires, the following terms shall have the following
          meanings:

                    1.1  "Affiliate" shall mean, with respect to
          any Person, (a) in the case of an individual, any
          relative of such Person; (b) any officer, director,
          trustee, partner, member, manager, employee or holder of
          ten percent (10%) or more of any class of the voting
          securities of or equity interest in such Person; (c) any,
          corporation, partnership, limited liability company,
          trust or other entity controlling, controlled by or under
          common control with such Person; or (d) any officer,
          director, trustee, partner, manager, employee or holder
          of ten percent (10%) or more of the outstanding voting
          securities of any corporation, partnership, limited
          liability company, trust or other entity controlling,
          controlled by, or under common control with such Person.

                    1.2  "Agreement" shall mean this Stockholder
          Agreement, as the same may be modified, amended or
          superseded, from time to time, in accordance with the
          terms hereof.

                    1.3  "Charitable Institution" shall mean an
          organization qualified under Section 501(c)(3) of the
          Code.

                    1.4  "Code" shall mean the Internal Revenue
          Code of 1986, as amended, and the rules and regulations
          promulgated thereunder.

                    1.5  "Communications Act" shall mean the
          Communications Act of 1934, as amended.

                    1.6  "Exchange Act" shall mean the Securities
          Exchange Act of 1934, as amended.

                    1.7  "Group" shall mean two or more persons
          acting in concert as a partnership, limited partnership,
          syndicate or other entity for the purpose of acquiring,
          holding, taking action with respect to or disposing of
          voting securities of Mtel.

                    1.8  "Microsoft" shall mean Microsoft
          Corporation, a Washington corporation.

                    1.9  "Mtel" shall mean Mobile Telecommunication
          Technologies Corp., a Delaware corporation.

                    1.10 "Mtel Preferred Stock" shall have the
          meaning set forth in the recitals to this Agreement.

                    1.11 "Mtel Voting Securities" shall have the
          meaning ascribed to such term in Section 2.1(a).

                    1.12 "Non-Rule 144 Exempt Transaction" shall
          have the meaning ascribed to such term in Section 2.1(c).

                    1.13 "Option Period" shall have the meaning
          ascribed to such term in Section 2.1(e) hereof.

                    1.14 "Permitted Transfer" shall mean:

                         (a)  any Transfer in which the only person
                    or persons who become the "beneficial owner"
                    (as determined pursuant to Rule 13d-3 under the
                    Exchange Act) of Restricted Securities is an
                    Affiliate or member of the "immediate family"
                    (as such term is defined in Rule 16a-l(e) under
                    the Exchange Act) of the transferring party;
                    and

                         (b)  any gift to a bona fide Charitable
                    Institution.               
     1.15 "Period" shall have the meaning ascribed
          to such term in Section 2.1(a).

                    1.16 "Person" shall mean an individual, firm,
          trust, association, corporation, partnership, limited
          partnership, government (whether federal, state, local or
          other political subdivision, or any agency or bureau of
          any of them) or other entity.

                    1.17 "Restricted Securities" shall have the
          meaning set forth in Section 2.1(c) of this Agreement.

                    1.18 "SEC" shall mean the United States
          Securities and Exchange Commission, or any successor
          agency.

                    1.19 "Securities Act" shall mean the Securities
          Act of 1933, as amended.

                    1.20 "Transfer" shall mean any offer, transfer
          sale, exchange, assignment, pledge, hypothecation, gift,
          grant of security interest in or lien on, placement in a
          trust (voting or otherwise) or any other disposition or
          encumbrance.

                    1.21 "Transfer Notice" shall have the meaning
          ascribed to such term in Section 2.1(d).

                                  ARTICLE II

                                  COVENANTS

                    2.1  Microsoft Covenants.  Microsoft covenants
          with Mtel as follows:

                    (a)  Microsoft Investment in Mtel.  During the
          period commencing on the date hereof and ending on the
          fifth anniversary of the date of this Agreement (the
          "Period"), Microsoft shall not and shall cause each of
          its Affiliates not to, without the prior written consent
          of Mtel, duly authorized by the Board of Directors of
          Mtel, directly or indirectly, through one or more
          intermediaries or otherwise, acting singly or as part of
          a Group, purchase, acquire or own (of record or
          beneficially) or offer (or propose to offer in any
          manner) or agree to purchase, acquire or own (of record
          or beneficially), any securities of Mtel entitled to vote
          generally in the election of directors of Mtel (or
          convertible into or exchangeable for securities of Mtel
          entitled to vote generally in the election of directors
          of Mtel) ("Mtel Voting Securities") if, after giving
          effect to such purchase or acquisition, Microsoft and its
          Affiliates would own (of record or beneficially) more
          than ten percent (10%) of the total of all outstanding
          Mtel Voting Securities.

                    (b)  Standstill Provisions.  During the Period,
          without the prior written consent of Mtel, duly
          authorized by Mtel's Board of Directors, Microsoft,
          directly or indirectly, through one or more
          intermediaries or otherwise, acting singly or as part of  
        a Group, shall not, and shall cause each of its
          Affiliates not to:

                         (1)  (i)  Make, or in any way participate
               in, directly or indirectly, any "solicitation" of
               "proxies" (as such terms are defined or used in
               Regulation 14A promulgated pursuant to the Exchange
               Act) or consents to vote or become a "participant"
               or "participant in a solicitation" (as such terms
               are defined or used in Rule 14a-11 promulgated
               pursuant to the Exchange Act) with respect to Mtel,
               (ii) seek to advise or influence any third person
               (within the meaning of Section 13(d)(3) of the
               Exchange Act) with respect to the voting of any Mtel
               Voting securities, (iii) call or seek to call,
               directly or indirectly, any special meeting of
               stockholders of Mtel for any reason whatsoever, (iv)
               seek, request, or take any action to obtain or
               retain, directly or indirectly, any list of holders
               of any Mtel Voting Securities, or (v) assist or
               encourage any attempt by any other person to do or
               seek any of the foregoing;

                         (2)  Initiate, propose or otherwise
               participate in a solicitation of holders of Mtel
               Voting Securities for the approval of one or more
               stockholder proposals with respect to Mtel as
               described in Rule 14a-8 promulgated pursuant to the
               Exchange Act;

                         (3)  Directly or indirectly participate in
               or encourage the formation of any Group which
               beneficially owns or seeks to acquire beneficial
               ownership of Mtel Voting securities;

                         (4)  Deposit any Mtel Voting Securities in
               a voting trust or subject them to any voting
               agreement or arrangement, and Microsoft represents
               and warrants to Mtel that other than this Agreement
               there are no such voting trusts, voting agreements
               or arrangements with respect to it which would
               include the Mtel Voting Securities to be received
               pursuant to the Stock Purchase Agreement;

                         (5)  (i)  Make any public announcement
               with respect to, or submit a proposal for, or seek
               to effect any form of merger, consolidation,
               business combination, tender offer, exchange offer
               or other acquisition or other business transaction
               with Mtel or any Affiliate of Mtel or any
               restructuring, recapitalization or similar
               transaction with respect to Mtel or any Affiliate of
               Mtel, (ii) otherwise act, directly or indirectly,
               alone or in concert with others, to seek to control
               or influence in any manner, other than as may be
               permitted by the terms of this Agreement, the
               management, Board of Directors, policies or affairs
               of Mtel or any Affiliate of Mtel, or (iii), in the
               case of either (i) or (ii) above, instigate or
               encourage any third party to do any of the
               foregoing;
                         (6)  Make any public or private
               communication with any holder of Mtel Voting
               Securities or other person regarding the management,
               Board of Directors, control, policies or affairs of
               Mtel; or

                         (7)  Propose, or publicly disclose an
               intent to propose, any of the foregoing, unless and
               until in any such case such offer or proposal shall
               have been specifically invited in writing by Mtel or
               by an authorized representative

                    (c)  Restriction on Transfer.  During the
          period commencing on the date hereof and ending on
          November 15, 1996, Microsoft shall not make or cause to
          be made any Transfer of Mtel Preferred Stock or any stock
          into which such Mtel Preferred Stock is convertible or
          any other capital stock of Mtel now owned or hereafter
          acquired (the "Restricted Securities") except for
          Permitted Transfers.  Thereafter Microsoft shall be
          permitted to Transfer Restricted Securities (i) pursuant
          to the provisions of Rule 144 under the Securities Act,
          and (ii) in a transaction or series of transactions
          exempt from registration under the Securities Act other
          than under Rule 144 (a "Non-Rule 144 Exempt
          Transaction"); provided, however, that no transaction
          pursuant to Rule 144 or Non-Rule 144 Exempt Transaction
          shall be made during a period of ninety (90) days after
          the declaration of effectiveness of any registration
          statement relating to the public offering of Mtel Voting
          Securities or any securities that may be convertible into
          or exchangeable or exercisable for Mtel Voting
          Securities, provided, further, that under no
          circumstances shall Microsoft sell more than one percent
          (1%) of the total number of issued and outstanding shares
          of common stock of Mtel (on a fully diluted basis) to any
          other person or entity operating in the
          telecommunications industry.  In the event of any
          Transfer of Restricted Securities (including a Permitted
          Transfer) by Microsoft, such Transfer shall be
          accompanied by an opinion of counsel, in form and
          substance reasonably satisfactory to Mtel, to the effect
          that the proposed Transfer complies with the applicable
          provision of the Securities Act and the rules and
          regulations thereunder, and any applicable state
          securities laws; provided, however, that such opinion of
          counsel shall not be required if such Transfer of
          Restricted Securities is made pursuant to the provisions
          of Rule 144.

                                 ARTICLE III

                    REPRESENTATIONS AND WARRANTIES OF MTEL

                    Mtel hereby represents and warrants to
          Microsoft as follows;

                    3.1  Capitalization.  The authorized capital
          stock of Mtel consists of 75,000,000 shares of common
          stock and 25,000,000 shares of preferred stock.  At the
          close of business on March 27, 1996, 54,138,156 shares of
          common stock and 3,750,000 shares of $2.25 Cumulative
          Convertible Preferred Stock Exchangeable Preferred Stock 
         were issued and outstanding.  At the close of business on
          March 27, 1996, a total of 7,648,406 shares of common
          stock were reserved for issuance upon the exercise of (i)
          the conversion rights of the $2.25 Cumulative Convertible
          Exchangeable Preferred Stock, (ii) the options, stock
          appreciation rights and other rights granted under Mtel's
          1988 Executive Incentive Plan, (iii) the options, stock
          appreciation rights and other rights granted under Mtel's
          1990 Executive Incentive Plan, (iv) the awards and
          options granted under Mtel's Long-Term Incentive Plan,
          (v) options granted under Mtel's 1993 Employee Stock
          Purchase Plan and (vi) the nonqualified options granted
          to directors of Mtel who are not officers.  Except as set
          forth in this Section 3.1, Schedule 3.1 hereto or as
          contemplated by this Agreement, there are not any
          options, warrants, calls, rights, commitments or
          agreements of any character to which Mtel or any
          subsidiary of Mtel is a party or by which it is bound
          obligating Mtel or any subsidiary of Mtel to issue,
          deliver or sell, or cause to be issued, delivered or
          sold, additional shares of capital stock of Mtel or
          obligating Mtel to grant, extend or enter into any such
          option, warrant, call, right, commitment or agreement.

                    3.2  Authority.  Mtel has all requisite
          corporate power and authority to enter into this
          Agreement and each other agreement, instrument and
          document required to be executed by Mtel in connection
          herewith, and to consummate the transactions contemplated
          hereby.  The execution and delivery by Mtel of this
          Agreement and the consummation by Mtel of the
          transactions contemplated hereby, have been duly
          authorized by all necessary corporate action of Mtel. 
          This Agreement has been duly and validly executed and
          delivered by Mtel and constitutes a valid and binding
          obligation of Mtel enforceable against Mtel in accordance
          with its terms except that the enforceability hereof may
          be limited by applicable bankruptcy or other laws
          affecting the enforcement of creditors' rights generally
          and the availability of equitable remedies, including
          specific performance, is subject to the discretion of the
          court before which any proceeding therefor may be
          brought.

                    3.3  Organization.  Mtel is a corporation duly
          formed, validly existing and in good standing under the
          laws of the State of Delaware and has full corporate
          power and authority to own and operate its assets and
          properties and carry on its businesses as presently
          conducted and is duly qualified to do business and is in
          good standing in all jurisdictions in which the ownership
          or occupancy of its properties or its activities
          presently makes such qualification necessary, except
          where the failure to so qualify or be in good standing
          would not have a material adverse effect upon the
          businesses, properties or assets of Mtel and its
          subsidiaries, taken as a whole.

                    3.4  Consents and Approvals.  All
          authorizations, approvals and consents, if any, required
          to be obtained from, and all registrations, declarations
          and filings, if any, required to be made with all
          governmental authorities and regulatory bodies to permit
          Mtel to execute and deliver, and to perform its
          obligations under, this Agreement have been obtained or
          made, as the case may be, and all such authorizations,
          approvals, consents, registrations, declarations and
          filings (collectively, "consents and filings") are in
          full force and effect, except where failure to obtain
          and/or maintain in full force and effect such consents
          and filings would not have a material adverse effect upon
          the execution and delivery of, and upon the performance
          of Mtel's obligations under, this Agreement.

                    3.5  No Violations.  Neither the execution or
          delivery by Mtel, nor the consummation by Mtel of the
          transactions herein contemplated, nor the fulfillment by
          Mtel of the terms and provisions hereof (i) will conflict
          with, violate or result in a breach of, any of the terms,
          conditions or provisions of any law, regulation, order,
          writ, injunction, decree, determination or award of any
          court, governmental department, board, agency or
          instrumentality or any arbitrator, applicable to Mtel
          including, without limitation, the Communications Act and
          the rules and regulations promulgated thereunder, (ii)
          will conflict with, violate or result in a breach of, or
          constitute a default under, any of the terms, conditions
          or provisions of Mtel's certificate of incorporation,
          certificates of designation and by-laws, (iii) will
          conflict with, violate or result in a breach of, or
          constitute a default under, any of the terms, conditions
          or provisions of any loan agreement, indenture, trust,
          deed or other agreement or instrument to which Mtel is a
          party or by which it is bound or (iv) result in the
          creation or imposition of any lien, charge, security
          interest or encumbrance of any nature whatsoever
          (collectively, a "lien") upon any of Mtel's property or
          assets.  Except with respect to the Credit Agreement (as
          defined in the Stock Purchase Agreement) which default
          shall be cured upon the closing under the Stock Purchase
          Agreement, Mtel is not in default under any agreement to
          which it is a party which default could impair its
          ability to perform its obligation under this Agreement,
          except where such default would not have a material
          adverse affect on Mtel's ability to perform its
          obligations under this Agreement.

                                  ARTICLE IV

                 REPRESENTATIONS AND WARRANTIES OF MICROSOFT

                    Microsoft hereby represents and warrants to
          Mtel as follows:

                    4.1  Authority.  Microsoft has all requisite
          corporate power and authority to enter into this
          Agreement and each other agreement, instrument and
          document required to be executed by Microsoft in
          connection herewith, and to consummate the transactions
          contemplated hereby.  The execution and delivery by
          Microsoft of this Agreement and the consummation by
          Microsoft of the transactions contemplated hereby, have
          been duly authorized by all necessary corporate action of
          Microsoft.  This Agreement has been duly and validly
          executed and delivered by Microsoft and constitutes a  
        valid and binding obligation of Microsoft enforceable
          against Microsoft in accordance with its terms except
          that the enforceability hereof may be limited by
          applicable bankruptcy or other laws affecting the
          enforcement of creditors' rights generally and the
          availability of equitable remedies, including specific
          performance, is subject to the discretion of the court
          before which any proceeding therefor may be brought.

                    4.2  Organization.  Microsoft is a corporation
          duly formed, validly existing and in good standing under
          the laws of the State of Washington and has full
          corporate power and authority to own and operate its
          assets and properties and carry on its businesses as
          presently conducted and is duly qualified to do business
          and is in good standing in all jurisdictions in which the
          ownership or occupancy of their properties or their
          activities presently makes such qualification necessary,
          except where the failure to so qualify or be in good
          standing would not have a material adverse effect upon
          the businesses, properties or assets of Microsoft and its
          subsidiaries, taken as a whole.

                    4.3  Consents and Approvals.  All
          authorizations, approvals and consents, if any, required
          to be obtained from, and all registrations, declarations
          and filings, if any, required to be made with, all
          governmental authorities and regulatory bodies to permit
          Microsoft to execute and deliver, and to perform its
          obligations under, this Agreement have been obtained or
          made, as the case may be, and all such authorizations,
          approvals, consents, registrations, declarations and
          filings (collectively, "consents and filings") are in
          full force and effect, except where failure to obtain
          and/or maintain in full force and effect such consents
          and filings would not have a material adverse effect upon
          the execution and delivery of, and upon the performance
          of Microsoft's obligation under, this Agreement.

                    4.4  No Violations.  Neither the execution or
          delivery by Microsoft of this Agreement, nor the
          consummation by Microsoft of the transactions herein
          contemplated, nor the fulfillment by Microsoft of the
          terms and provisions hereof (i) will conflict with,
          violate or result in a breach of, any of the terms,
          conditions or provisions of any law, regulation, order,
          writ, injunction, decree, determination or award of any
          court, governmental department, board, agency or
          instrumentality or any arbitrator, applicable to
          Microsoft including, without limitation, the
          Communications Act, and the rules and regulations
          promulgated thereunder, (ii) will conflict with, violate
          or result in a breach of, or constitute a default under,
          any of the terms, conditions or provisions of Microsoft's
          certificate of incorporation and by-laws or (iii) will
          conflict with, violate or result in a breach of, or
          constitute a default under, any of the terms, conditions
          or provisions of any loan agreement, indenture, trust,
          deed or other agreement or instrument to which Microsoft
          is a party or by which it is bound, except where such
          conflict, violation or breach will not have a material
          adverse effect on Microsoft's execution, delivery,
          consummation or fulfillment of this Agreement.  Microsoft   
       is not in default under any agreement to which it is a
          party which default could impair its ability to perform
          its obligations under this Agreement, except where such
          default would not have a material adverse effect on
          Microsoft's ability to perform its obligations under this
          Agreement.

                                  ARTICLE V

                                MISCELLANEOUS

                    5.1  Termination.  This Agreement, and all
          rights and obligations of the parties hereunder, shall
          terminate upon the mutual agreement of the parties
          hereto.

                    5.2  Assignability.  This Agreement shall be
          binding upon and inure to the benefit of the successors
          and assigns of each party hereto.  Neither this Agreement
          nor any right or obligation hereunder may be assigned or
          delegated in whole or in part to any other person without
          the prior written consent of each other party hereto.

                    5.3  Notices.  In any case where any notice or
          other communication is required or permitted to be given
          hereunder (including, without limitation, any change in
          the information set forth in this Section 5.3) such
          notice or communication shall be in writing and (a)
          personally delivered, (b) sent by registered United
          States mail, postage prepaid, return receipt requested,
          (c) transmitted by telecopy or (d) sent by way of a
          recognized overnight courier service, Postage prepaid,
          return receipt requested with instructions to deliver on
          the next business day, in each case as follows:

                         (i)  If to Mtel, to:

                              Mobile Telecommunication Technologies
                              Corp.
                              110 East 59th St.
                              36th Floor
                              New York, New York  10022
                              Attention: John E. Welsh, III
                              Telecopy:  (212) 735-0808

                              with a copy to:

                              Mobile Telecommunication Technologies
                              Corp.
                              200 South Lamar Street
                              Security Centre, South Building
                              Jackson, Mississippi 39201
                              Attention: Leonard G. Kriss, Esq.
                              Telecopy:  (601) 944-7194

                         (ii) If to Microsoft, to:

                              Microsoft Corporation
                              One Microsoft Way
                              Redmond, Washington 98052-6399
                              Attention: Treasurer
                              Telecopy:  (206) 936-2625
                              with a copy to:

                              Microsoft Corporation
                              One Microsoft Way
                              Redmond, Washington 98052-6399
                              Attention: Robert A. Eschelman
                              Telecopy: (206) 869-1327

                    5.4  Waivers.  The failure at any time of any
          party hereto to require performance by any other party
          hereto of any responsibility or obligation required by
          this Agreement shall in no way affect a party's right to
          require such performance at any time thereafter, nor
          shall the waiver by the party of a breach of any
          provision of this Agreement by any other party constitute
          a waiver of any other breach of the same or any other
          provision of this Agreement nor constitute a waiver of
          the responsibility or obligation itself.

                    5.5  Third Party Rights.  Nothing in this
          Agreement, whether express or implied, is intended or
          shall be construed to confer, directly or indirectly,
          upon or give to any other person than Mtel, Microsoft and
          their respective Affiliates, any legal or equitable
          right, remedy or claim under or in respect of this
          Agreement or any covenant, condition or other provision
          contained herein.

                    5.6  Choice of Law.  This Agreement shall be
          construed and enforced in accordance with and governed by
          the laws of the State of Delaware without giving effect
          to the principles of conflict of laws thereof.

                    5.7  Severability.  Should any provision of
          this Agreement be deemed in contradiction with the laws
          of any jurisdiction in which it is to be performed or
          unenforceable for any reason, such provision shall be
          deemed null and void, but this Agreement shall remain in
          force in all other respects.  Should any provision of
          this Agreement be or become ineffective because of
          changes in applicable laws or interpretations thereof or
          should this Agreement fail to include a provision that is
          required as matter of law, the validity of the other
          provisions of this Agreement shall not be affected
          thereby.  If such circumstances arise, the parties hereto
          shall negotiate in good faith appropriate modifications
          to this Agreement to reflect those changes that are
          required by law.

                    5.8  Enforcement of Agreement.  Any action or
          proceeding brought by any party to this Agreement on its
          own behalf, or on behalf of Mtel, in connection with or
          relating to this Agreement or any provision hereof shall
          be brought only in a federal or state court of competent
          jurisdiction in the United States.  Each of the parties
          hereto, solely in connection with any such action or
          proceeding, does hereby (a) submit to the jurisdiction of
          any such court, (b) waive any defense of or relating to
          lack of jurisdiction with respect to any such action or
          proceeding in any such court and (c) waive any defense of
          or relating to service of process in a such action or
          proceeding in any such court.
                    5.9  References to Agreement.  Any reference
          herein to this Agreement shall be deemed to be a
          reference to such Agreement as the same may be modified,
          varied, amended or supplemented from time to time by the
          parties hereto in accordance with the provisions hereof. 
          Unless the context otherwise expressly requires, the
          words "herein," "hereof" and "hereunder" and other words
          of similar import refer to this Agreement as a whole and
          not to any particular Article, Section or other
          subdivision or Appendix.

                    5.10 Headings, etc.  The Article and Section
          headings in this Agreement, and the table of contents
          included herein, are inserted for convenience of
          reference only and shall not affect the interpretation of
          this Agreement.  Whenever the context shall require, each
          term stated in either the singular or plural shall
          include the singular and the plural.  References herein
          to masculine, feminine or neuter pronouns shall be
          construed to refer to another gender when the context may
          require.

                    5.11 Counterparts.  This Agreement may be
          executed in one or more counterparts, each of which shall
          be deemed an original, but all of which shall constitute
          one and the same instrument.

                    5.12 Survival.  The provisions of all
          representations and warranties made herein shall survive
          the execution and delivery of this Agreement until the
          expiration of a period of two years following the
          effective date of any termination of this Agreement.

                    5.13 Amendments.  This Agreement may be amended
          or modified only by a written instrument executed by each
          of the parties hereto or by their respective successors
          and assigns.

                    5.14 Entire Agreement.  This Agreement and the
          other agreements and documents contemplated herein and
          therein, constitute the entire agreement between the
          parties hereto and supersede any prior agreement or
          understanding between the parties.  This Agreement
          supersedes the Original Stockholders Agreement as it
          relates to the parties hereto and the matters covered
          hereby and thereby.
                    IN WITNESS WHEREOF, Mtel and Microsoft have
          caused this Agreement to be duly executed and delivered
          on the day and year first above written.

                                        MOBILE TELECOMMUNICATION
                                        TECHNOLOGIES CORP.

                                        By: /s/ John E. Welsh, III
                                           ___________________________
                                           Name:  John E. Welsh, III
                                           Title: Vice Chairman and Chief
                                                  Financial Officer

                                        MICROSOFT CORPORATION

                                        By: /s/ Greg Maffei
                                           ___________________________
                                           Name:  Greg Maffei
                                           Title: Treasurer



                 ____________________________________________

                    FORM OF REGISTRATION RIGHTS AGREEMENT

                 ____________________________________________


                        REGISTRATION RIGHTS AGREEMENT

                    THIS REGISTRATION RIGHTS AGREEMENT (this
          "Agreement"), dated this ____ day of _____, 1996, by and
          among Mobile Telecommunication Technologies Corp., a
          Delaware corporation (the "Corporation"), and _________
          ___________, a Washington corporation (the
          "Stockholder").

                            W I T N E S S E T H :

                    WHEREAS, pursuant to the terms of a stock
          purchase agreement (the "Stock Purchase Agreement"), the
          Corporation has sold to the Stockholder shares of the
          Corporation's Series A 7.5% Cumulative Convertible Accruing 
          Pay-In-Kind Preferred Stock, par value $0.01 (the "PIK
          Preferred Stock"); and

                    WHEREAS, by its terms as provided in the
          Certificate of Designation of the Rights and Preferences
          of the Series A 7.5% Cumulative Convertible Accruing
          Pay-In-Kind Preferred Stock, the PIK Preferred Stock is
          convertible into shares of common stock, par value $0.01,
          of the Corporation (the "Common Stock");

                    WHEREAS, in connection with, and contingent
          upon the consummation of, the closing of the transaction
          contemplated by the Stock Purchase Agreement, the
          Corporation and the Stockholder desire to provide for
          certain registration rights with respect to the
          Registrable Stock as set forth herein;

                    NOW, THEREFORE, in consideration of the
          foregoing and for other good and valuable consideration,
          the receipt and sufficiency of which hereby are
          acknowledged, the parties hereto, subject to the terms
          and conditions set forth below, hereby agree as follows:

                                  ARTICLE I.

                                 DEFINITIONS

                    Unless the context otherwise requires,
          capitalized terms not otherwise defined herein shall have
          the respective meanings assigned to them in the Stock
          Purchase Agreement.  Unless the context otherwise
          requires, the following terms shall have the following
          meanings:

                    1.1    "HOLDER":  A holder of Registrable Stock
          provided that anyone who acquires any Registrable Stock
          in a distribution pursuant to a registration statement
          filed by the Corporation under the Securities Act shall
          not thereby be deemed to be a "Holder."

                    1.2    "REGISTER," "REGISTERED" AND
          "REGISTRATION":  Each refer to a registration of
          Registrable Stock effected by filing with the SEC a
          registration statement in compliance with the Securities
          Act and the declaration or ordering by the SEC of
          effectiveness of such registration statement.
                    1.3   "REGISTRABLE STOCK":  All shares of
          either (i) PIK Preferred Stock (or any additional series
          of payment-in-kind preferred stock that may be issued as
          contemplated by the Stock Purchase Agreement) or (ii)
          following conversion of any such preferred stock, the
          Common Stock into which such preferred stock was
          converted.

                    1.4   "SHELF REGISTRATION": means a
          registration effected pursuant to Section 2 hereof.

                    1.5   "SHELF REGISTRATION STATEMENT": means a
          shelf registration statement of the Corporation pursuant
          to the provisions of Section 2 hereof filed with the
          Securities and Exchange Commission (the "SEC") which
          covers some or all of the Registrable Securities, as
          applicable, and, at the option of the Corporation, such
          shares of capital stock (or other securities of the
          Corporation) as the Corporation shall designate therein
          (the "Corporation Shelf Securities") on an appropriate
          form under Rule 415 under the Securities Act of 1933 (the
          "Act"), or any similar rule that may be adopted by the
          SEC, amendments and supplements to such registration
          statement, including post-effective amendments, in each
          case including the prospectus contained therein, all
          exhibits thereto and all material incorporated by
          reference therein.

                                 ARTICLE II.

                             REGISTRATION RIGHTS

                    2.1  SHELF REGISTRATION.

                    (a)  The Corporation shall (i) file by November
               15, 1996 with the SEC a Shelf Registration Statement
               relating to the offer and sale of the Registrable
               Securities by the Holders and the Corporation Shelf
               Securities by the Corporation from time to time in
               accordance with the methods of distribution elected
               by such Holders, or the Corporation, as the case may
               be, and set forth in such Shelf Registration
               Statement and, thereafter, and (ii) use its
               reasonable best efforts to cause such Shelf
               Registration Statement to be declared effective
               under the Act; provided, however, that no Holder
               shall be entitled to have the Registrable Securities
               held by it covered by such Shelf Registration unless
               such Holder is in compliance with Section 2.5
               hereof.

                    (b)  The Corporation shall use its reasonable
               best efforts (i) to keep the Shelf Registration
               Statement continuously effective in order to permit
               the prospectus forming part thereof to be usable by
               the Holders until April 1, 1998 or such shorter
               period that will terminate when all the Registerable
               Securities covered by the Shelf Registration
               Statement have been sold pursuant to the Shelf
               Registration Statement, and (ii) after the
               effectiveness of the Shelf Registration Statement,
               promptly upon the request of any Holder to take any
               action reasonably necessary to register the sale of
               any Registrable Securities of such Holder and to
               identify such Holder as a selling securityholder. 

                    2.2    REGISTRATION PROCEDURES.  In connection
          with any Shelf Registration Statement, the Corporation 
          shall:

                    (a)  prepare and file with the SEC a Shelf
               Registration Statement, on an appropriate form
               pursuant to Rule 415 of the Act and which the
               Corporation is eligible to use, with respect to such
               shares and use its best efforts to cause such Shelf
               Registration statement to become and remain
               effective as provided herein;

                    (b)  prepare and file with the SEC such
               amendments and supplements to such registration
               statement and the prospectus used in connection
               therewith as may be necessary to keep such
               registration statement effective and current and to
               comply with the provisions of the Act with respect
               to the disposition of all shares covered by such
               registration statement, including such amendments
               and supplements as may be necessary to reflect the
               intended method of disposition from time to time of
               the prospective seller or sellers of such
               Registrable Stock;

                    (c)  furnish to each seller such number of
               copies of a prospectus in conformity with the
               requirements of the Act, and such other documents,
               as such seller may reasonably request in order to
               facilitate the public sale or other disposition of
               the Registrable Stock owned by such seller;

                    (d)  use its best efforts to register or
               qualify the shares of Registrable Stock covered by
               such registration statement under such other
               securities or blue sky or other applicable laws of
               such jurisdiction within the United States as each
               prospective seller shall reasonably request, to
               enable such seller to consummate the public sale or
               other disposition in such jurisdictions of the
               shares of Registrable Stock owned by such seller;
               provided, however, that in no event shall the
               Corporation be obligated to qualify to do business
               in any jurisdiction where it is not at the time so
               qualified or to take any action that would subject
               it to service of process in suits other than those
               arising out of the offer or sale of the Registrable
               Stock covered by such registration statement in any
               jurisdiction where it is not at the time so subject;
               and

                    (e)  furnish to each prospective seller a
               signed counterpart, addressed to the prospective
               sellers, of (i) an opinion of counsel for the
               Corporation, dated the effective date of the
               registration statement, and (ii) a "comfort" letter
               (or, in the case of any such Person which does not
               satisfy the conditions for receipt of a "comfort"
               letter specified in Statement on Auditing Standards
               No. 72, an "agreed upon procedures" letter) signed
               by the independent public accountants who have
               certified the Corporation's financial statements
               included in the registration statement, covering
               substantially the same matters with respect to the
               registration statement (and the prospectus included
               therein) and (in the case of the "comfort" or
               "agreed upon procedures" letter) with respect to
               events subsequent to the date of the financial
               statements, as are customarily covered (at the time
               of such registration) in opinions of issuer's
               counsel and in "comfort" letters delivered to the
               underwriters in underwritten public offerings of
               securities (with, in the case of an "agreed upon
               procedures" letter, such modifications or deletions
               as may be required under Statement on Auditing
               Standards No. 35).

                    2.3 LIMITATIONS ON OFFERINGS BY THE HOLDERS.

                    (a) Notwithstanding the provisions of Section
               2.1, if at any time the Corporation desires to
               effect a registered offering of securities (pursuant
               to Shelf Registration Statement or otherwise) and
               simultaneously therewith any Holder desires to
               effect an offering pursuant to a Shelf Registration
               Statement and if the underwriter, if any, determines
               that (i) marketing factors require a limitation of
               the total number of shares to be underwritten, or
               (ii) the offering price per share would be reduced
               by the inclusion of the securities of the Holders,
               then the number of shares to be included in the
               underwriting shall first be allocated to the
               Corporation, then the remainder, if any, among all
               Holders who indicated to the Corporation their
               decision to distribute any of their Registrable
               Stock through such underwriting, in proportion, as
               nearly as practicable, to the respective numbers of
               shares of Registrable Stock which such Holders
               initially indicated to be included in the
               underwriting.

                    (b) If at any time the Corporation is engaged,
               or proposes to engage in a registered public
               offering within 30 days of the time of a proposed
               offering by a Holder pursuant to the Shelf
               Registration Statement, or is engaged in any other
               activity that, in the good faith determination of
               the Board of Directors of the Corporation (the
               "Board"), would be adversely affected by the
               proposed offering by a Holder or the required
               disclosure in connection therewith to the material
               detriment of the Corporation or any affiliate
               thereof, then the Corporation may at its option
               direct that such offering by a Holder be delayed,
               suspended or postponed for a period not in excess of
               45 days from the effective date of such offering, or
               the date of commencement of such other material
               activity, as the case may be.

                    (c) Anything in this Agreement to the contrary
               notwithstanding, the Holders shall not offer any
               Registrable Securities pursuant to the Shelf
               Registration Statement if such offering would
               require the Corporation (i) to furnish any financial
               statements other than as of the end of a fiscal
               quarter or (ii) to furnish any audited financial
               statements other than as of the end of a fiscal year
               unless the Holder(s) requesting such registration
               agree to bear the expenses of furnishing such
               financial statements.  In addition to the foregoing,
               in the event of a proposed offering by a Holder
               pursuant to the Shelf Registration Statement, at
               such time as any registration statement would be
               required to include audited financial statement as
               of a fiscal year end, the Corporation may delay the
               dissemination of the required notice and the taking
               of any action to effect a supplement to the Shelf
               Registration Statement until such time as such
               audited financial statements are available in the
               ordinary course of business.

                    (d) No Holder shall offer any Registrable
               Securities pursuant to the Shelf Registration
               Statement within 45 days after the effectiveness of
               any other registration of the Corporation's capital
               stock.

                    (e) No take-down under the Shelf Registration
               Statement shall be effected unless the value of the
               Registrable Securities proposed to be offered under
               such take-down exceeds $5 million.

                    2.4  DESIGNATION OF UNDERWRITER.

                    (a)  In the case of any registration effected
               pursuant to Section 2.1, a majority in interest of
               the Holders shall have the right to designate the
               managing underwriter in any underwritten offering,
               which underwriter shall be reasonably acceptable to
               the Corporation.

                    (b)  In the case of any registration initiated
               by the Corporation, the Corporation shall have the
               right to designate the managing underwriter in any
               underwritten offering.

                    2.5  COOPERATION BY PROSPECTIVE SELLERS.

                    (a)  Each prospective seller of Registrable
               Stock, and each underwriter designated by each such
               seller, will furnish to the Corporation such
               information as the Corporation may reasonably
               require from such seller or underwriter in
               connection with the Shelf Registration Statement
               (and the prospectus included therein).  No Holder
               may participate in any offering unless such Holder
               (i) agrees to sell its Registrable Stock to be sold
               on the basis provided in any agreement governing the
               offering and (ii) completes and executes all
               questionnaires, indemnities, underwriting agreements
               and other documents required in connection with the
               offering.

                    (b)  Failure of a prospective seller of
               Registrable Stock to furnish the information and
               agreements described in this Agreement shall not
               affect the obligations of the Corporation under this
               Agreement to remaining sellers to furnish such
               information and agreements unless, in the reasonable
               opinion of counsel to the Corporation or the
               underwriters, such failure impairs or may impair the
               viability of the offering or the legality of the
               registration or the underlying offering.

                    (c)  The Holders holding shares included in the
               registration will not (until further notice by the
               Corporation) effect sales thereof (or deliver a
               prospectus to any purchaser) after receipt of
               telegraphic or written notice from the Corporation
               to suspend sales to permit the Corporation to
               correct or update a registration statement or
               prospectus.  At the end of the period during which
               the Corporation is obligated to keep the
               registration statement current and effective as
               described in Section 2.1(b)(i), the Holders holding
               shares of Registrable Stock included in the
               registration shall discontinue sales of shares
               pursuant to such registration statement upon receipt
               of notice from the Corporation of its intention to
               remove from registration the shares of Registrable
               Stock covered by such registration statement that
               remain unsold, and such Holders shall notify the
               Corporation of the number of such shares registered
               that remain unsold immediately upon receipt of such
               notice from the Corporation.

                    In connection with any offering, each Holder
               who is a prospective seller, will not use any
               offering document, offering circular or other
               offering materials with respect to the offer or sale
               of Registrable Stock, other than the prospectuses
               provided by the Corporation and any documents
               incorporated by reference therein.

                    2.6  EXPENSES OF REGISTRATION.  All expenses
          incurred in effecting any registration pursuant to this
          Agreement, including, without limitation, all
          registration and filing fees, printing expenses, expenses
          of compliance with blue sky laws, fees and disbursements
          of counsel for the Corporation and expenses of any audits
          incidental to or required by any such registration, shall
          be borne by the Corporation, except (a) that all
          additional expenses, fees and disbursements of any
          counsel retained by the Holders, and all underwriting
          discounts, fees and commissions shall be borne by the
          Holders holding the securities registered pursuant to
          such registration, according to the quantity of their
          securities so registered; and (b) the Corporation shall
          not be required to pay for any expenses of any take-down
          pursuant to a Shelf Registration proceeding begun
          pursuant to Section 2.1 if the registration request is
          subsequently withdrawn at the request of the Holders of a
          majority of the Registrable Stock to be registered (in
          which case all participating Holders shall bear such
          expenses); provided, however, that if immediately prior
          to the time of such withdrawal, the Holders have learned
          of a materially adverse change in the condition, business
          or prospects of the Corporation from that known to the
          Holders at the time of their request, then the Holders
          shall not be required to pay any of such expenses and
          shall retain their rights pursuant to Section 2.1.

                    2.7  INDEMNIFICATION.

                    (a)  To the extent permitted by law, the
               Corporation will indemnify each Holder requesting or
               joining in a registration, each agent, officer and
               director of such Holders, each person controlling
               such Holder and each underwriter and selling broker
               of the securities so registered (collectively,
               "Indemnitees") against all claims, losses, damages
               and liabilities (or actions in respect thereof)
               arising out of or based on any untrue statement (or
               alleged untrue statement) of a material fact
               contained in any prospectus, offering circular or
               other document incident to any registration,
               qualification or compliance (or in any related
               registration statement, notification or the like) or
               any omission (or alleged omission) to state therein
               a material fact required to be stated therein or
               necessary to make the statements therein not
               misleading in the light of the circumstances in
               which they were made, or any violation by the
               Corporation of any rule or resolution promulgated
               under the Securities Act applicable to the
               Corporation and relating to an action or inaction
               required of the Corporation in connection with any
               such registration, qualification or compliance, and
               will reimburse each such Indemnitee for any legal
               and any other expenses reasonably incurred in
               connection with investigating or defending any such
               claim, loss, damage, liability or action, provided,
               however, that the Corporation will not be liable in
               any such case to the extent that any such claim,
               loss, damage or liability is caused by any untrue
               statement or omission so made in strict conformity
               with written information furnished to the
               Corporation by an instrument duly executed by such
               Indemnitees and stated to be specifically for use
               therein and except that the foregoing indemnity
               agreement is subject to the condition that, insofar
               as it relates to any such untrue statement (or
               alleged untrue statement) or omission (or alleged
               omission) made in the preliminary prospectus but
               eliminated or remedied in the amended prospectus on
               file with the SEC at the time the registration
               statement becomes effective or in the amended
               prospectus filed with the SEC pursuant to Rule
               424(b) (the "Final Prospectus"), such indemnity
               agreement shall not inure to the benefit of any
               underwriter, or any Indemnitee if there is no
               underwriter, if a copy of the Final Prospectus was
               not furnished to the person or entity asserting the
               loss, liability, claim or damage at or prior to the
               time such furnishing is required by the Securities
               Act; provided, further, that this indemnity shall
               not be deemed to relieve any underwriter of any of
               its due diligence obligations; provided, further,
               that the indemnity agreement contained in this
               Section 2.7(a) shall not apply to amounts paid in
               settlement of any such claim, loss, damage,
              liability or action if such settlement is effected
               without the consent of the Corporation, which
               consent shall not be unreasonably withheld.

                    (b)  To the extent permitted by law, each
               Holder requesting or joining in a registration and
               each underwriter of the securities so registered
               will indemnify the Corporation and its officers and
               directors and each other Holder and each person, if
               any, who controls any of them within the meaning of
               Section 15 of the Securities Act and their
               respective successors against all claims, losses,
               damages and liabilities (or actions in respect
               thereof) arising out of or based on any untrue
               statement (or alleged untrue statement) of a
               material fact contained in any prospectus, offering
               circular or other document incident to any
               registration, qualification or compliance (or in any
               related registration statement, notification or the
               like) or any omission (or alleged omission) to state
               therein a material fact required to be stated
               therein or necessary to make the statements therein
               not misleading in the light of the circumstances in
               which they were made and will reimburse the
               Corporation and each other person indemnified
               pursuant to this paragraph (b) for any legal and any
               other expenses reasonably incurred in connection
               with investigating or defending any such claim,
               loss, damage, liability or action, provided,
               however, that this paragraph (b) shall apply only if
               (and only to the extent that) such statement or
               omission was made in reliance upon and in strict
               conformity with written information (including,
               without limitation, written negative responses to
               inquiries) furnished to the Corporation by an
               instrument duly executed by such Holder or
               underwriter and stated to be specifically for use in
               such prospectus, offering circular or other document
               (or related registration statement, notification or
               the like) or any amendment or supplement thereto and
               except that the foregoing indemnity agreement is
               subject to the condition that, insofar as it relates
               to any such untrue statement (or alleged untrue
               statement) or omission (or alleged omission) made in
               the preliminary prospectus but eliminated or
               remedied in the amended prospectus on file with the
               SEC at the time the registration statement becomes
               effective or in the Final Prospectus, such indemnity
               agreement shall not inure to the benefit of (i) the
               Corporation and (ii) any underwriter or any Holder,
               if there is no underwriter, if a copy of the Final
               Prospectus was not furnished to the person or entity
               asserting the loss, liability, claim or damage at or
               prior to the time such furnishing is required by the
               Securities Act; provided, further, that this
               indemnity shall not be deemed to relieve any
               underwriter of any of its due diligence obligations;
               provided, further, that the indemnity agreement
               contained in this Section 2.7(b) shall not apply to
               amounts paid in settlement of any such claim, loss,
               damage, liability or action if such settlement is
               effected without the consent of the Holder or
               underwriter, as the case may be, which consent shall
               not be unreasonably withheld; and provided, further,
               that the obligations of such Holders shall be
               limited to an amount equal to the proceeds to each
               such Holder of Registrable Stock sold as
               contemplated herein, unless such claim, loss,
               damage, liability or action resulted from such
               Holder's fraudulent misconduct.

                    (c)  Each party entitled to indemnification
               hereunder (the "Indemnified Party") shall give
               notice to the party required to provide
               indemnification (the "Indemnifying Party") promptly
               after such Indemnified Party has actual knowledge of
               any claim as to which indemnity may be sought, and
               shall permit the Indemnifying Party (at its expense)
               to assume the defense of any claim or any litigation
               resulting therefrom, provided that counsel for the
               Indemnifying Party, who shall conduct the defense of
               such claim or litigation, shall be satisfactory to
               the Indemnified Party, and the Indemnified Party may
               participate in such defense at such party's expense,
               and provided, further, that the omission by any
               Indemnified Party to give notice as provided herein
               shall not relieve the Indemnifying Party of its
               obligations under this Section 2.7 except to the
               extent that the omission results in a failure of
               actual notice to the Indemnifying Party and such
               Indemnifying Party is damaged solely as a result of
               the failure to give notice.  No Indemnifying Party,
               in the defense of any such claim or litigation,
               shall, except with the consent of each Indemnified
               Party, consent to entry of any judgment or enter
               into any settlement that either (i) does not include
               as an unconditional term thereof the giving by the
               claimant or plaintiff to such Indemnified Party of a
               release from all liability in respect to such claim
               or litigation or (ii) contains any finding of a
               violation of law by an Indemnified Party.

                    (d)  The reimbursement required by this Section
               2.7 shall be made by periodic payments during the
               course of the investigation or defense, as and when
               bills are received or expenses are incurred.

                    (e)  If the indemnification provided for in
               this Section 2.7 is unavailable to an Indemnified
               Party in respect of any losses, claims, damages or
               liabilities referred to therein, then each
               Indemnifying Party, in lieu of indemnifying such
               Indemnified Party, shall contribute to the amount
               paid or payable by such Indemnified Party as a
               result of such losses, claims, damages or
               liabilities in such proportion as is appropriate to
               reflect the relative fault of the Corporation on the
               one hand, and of the sellers of Registrable Stock
               and any other sellers participating in the
               registration statement on the other hand, in
               connection with the statements or omissions that
               resulted in such losses, claims, damages or
               liabilities, as well as any other relevant equitable
               considerations including the relative benefits
               received by the Corporation, on the one hand, and by
               the sellers of Registrable Stock and any other 
              sellers participating in the registration statement
               on the other hand.  The relative benefits received
               by the Corporation on the one hand, and the sellers
               of Registrable Stock and any other sellers
               participating in the registration statement on the
               other hand, shall be deemed to be in the same
               proportion as the total net proceeds from the
               offering (before deducting expenses) to the
               Corporation bear to the total net proceeds from the
               offering (before deducting expenses) to the sellers
               of Registrable Stock and any other sellers
               participating in the registration statement.  The
               relative fault of the Corporation on the one hand,
               and of the sellers of Registrable Stock and any
               other sellers participating in the registration
               statement on the other hand, shall be determined by
               reference to, among other things, whether the untrue
               or alleged untrue statement of a material fact or
               the omission or alleged omission to state a material
               fact relates to information supplied by the
               Corporation or by the sellers of Registrable Stock
               or other sellers participating in the registration
               statement and the parties' relative intent,
               knowledge, access to information and opportunity to
               correct or prevent such statement or omission.

                    (f)  The Corporation and the sellers of
               Registrable Stock agree that it would not be just
               and equitable if contribution pursuant to this
               Section 2.7 were determined by pro rata allocation
               (even if the sellers of Registrable Stock were
               treated as one entity for such purpose) or by any
               other method of allocation that does not take
               account of the equitable considerations referred to
               in the immediately preceding paragraph.  The amount
               paid or payable by an Indemnified Party as a result
               of the losses, claims, damages and liabilities
               referred to in the immediately preceding paragraph
               shall be deemed to include, subject to the
               limitations set forth above, any legal or other
               expenses reasonably incurred by such indemnified
               party in connection with investigating or defending
               any such action or claim.  Notwithstanding the
               provisions of this Section 2.9, no seller of
               Registrable Stock shall be required to contribute
               any amount in excess of the proceeds received by
               such seller from the sale of Registrable Stock
               covered by any registration statement filed pursuant
               hereto.  No person guilty of fraudulent
               misrepresentation (within the meaning of Section
               11(f) of the Securities Act) shall be entitled to
               contribution from any person who was not guilty of
               such fraudulent misrepresentation.

                    (g)  The obligations under this Section 2.7
               shall survive the completion of any offering of
               Registrable Stock in a registration statement under
               this Agreement or otherwise.

                    2.8  RIGHTS THAT MAY BE GRANTED TO SUBSEQUENT INVESTORS.
                    (a)  Within the limitations prescribed by this
               paragraph (a), but not otherwise, the Corporation
               may grant to subsequent investors in the Corporation
               rights of registration upon request and rights of
               incidental registration, including on any Shelf
               Registration Statement; provided, however, if an
               underwriter, if any, determines that (i) marketing
               factors require a limitation on the total number of
               shares to be underwritten, or (ii) the offering
               price per share would be reduced by the inclusion of
               securities of a third party, then the number of
               shares to be included in the underwriting shall be
               allocated first to the Holders and then the
               remainder, if any, to such other third parties.  

                    2.9  DELAY OF REGISTRATION.  The Stockholder
          shall have no right to take any action to restrain,
          enjoin, or otherwise delay any registration as the result
          of any controversy that might arise with respect to the
          interpretation or implementation of this Agreement.

                                 ARTICLE III.

                        REPRESENTATIONS AND WARRANTIES

                    The parties hereby represent and warrant with
          respect to themselves as follows:

                    3.1  ORGANIZATION.  The Corporation and the
          Stockholder are corporations duly formed, validly
          existing and in good standing under the laws of their
          respective states of incorporation and have full power
          (corporate or otherwise) and authority to own and operate
          their assets and properties and carry on their businesses
          as presently conducted and are duly qualified to do
          business and are in good standing in all jurisdictions in
          which the ownership or occupancy of their properties or
          their activities presently makes such qualification
          necessary, except where the failure to so qualify would
          not have a material adverse effect upon their, and their
          subsidiaries', businesses, properties or assets.  With
          respect to the Corporation, subsidiaries shall mean
          Skytel Corp., Destineer, Inc. and Mtel International, Inc.

                    3.2  AUTHORITY.  The Corporation has all
          requisite corporate power and authority to enter into
          this Agreement and to consummate the transactions
          contemplated hereby.  The Stockholder has all requisite
          power and authority to enter into and to consummate the
          transactions contemplated hereby.  The execution and
          delivery by the Corporation and the Stockholder of this
          Agreement and the consummation by the Corporation and the
          Stockholder of the transactions contemplated hereby, have
          been duly authorized by all necessary corporate action of
          the Corporation and the Stockholder.  This Agreement
          constitutes a valid and binding obligation of the parties
          hereto, enforceable against them in accordance with its
          terms, except as the enforceability thereof may be
          limited by bankruptcy or other laws affecting the
          enforcement of creditors' rights generally and the
          availability of equitable remedies, including specific
          performance, is subject to the discretion of the court
          before which any proceeding therefor may be brought.

                    3.3  CONSENTS AND APPROVALS.  All
          authorizations, approvals and consents, if any, required
          to be obtained from, and all registrations, declarations
          and filings, if any, required to be made with, all
          governmental authorities and regulatory bodies to permit
          the Corporation and the Stockholder to execute and
          deliver, and to perform its obligations under, this
          Agreement have been obtained or made, as the case may be,
          and all such authorizations, approvals, consents,
          registrations, declarations and filings (collectively
          "consents and fillings") are in full force and effect,
          except where failure to obtain and/or maintain in full
          force and effect such consents and filings would not have
          a material adverse effect upon the execution and delivery
          of, and upon the performance of the parties' obligations
          under, this Agreement.

                    3.4  NO VIOLATIONS.  Neither the execution or
          delivery of this Agreement by the parties hereto, nor the
          consummation by the parties hereto of the transactions
          herein contemplated, nor the fulfillment by the
          Stockholder and the Corporation of the terms and
          provisions hereof (i) will conflict with, violate or
          result in a breach of, any of the terms, conditions or
          provisions of any law, regulation, order, writ,
          injunction, decree, determination or award of any court,
          governmental department, board, agency or instrumentality
          or any arbitrator, applicable to the Stockholder or the
          Corporation including, without limitation, the
          Communications Act of 1934, as amended (the
          "Communications Act"), and the rules and regulations
          promulgated thereunder, (ii) will conflict with, violate
          or result in a breach of, or constitute a default under,
          any of the terms, conditions or provisions of the
          articles of incorporation or by-laws of the Corporation
          or the Stockholder, (iii) will conflict with, violate or
          result in a breach of, or constitute a default under, any
          of the terms, conditions or provisions of any loan
          agreement, indenture, trust, deed or other agreement or
          instrument to which the Stockholder is a party or by
          which it is bound or (iv) result in the creation or
          imposition of any lien, charge, security interest or
          encumbrance of any nature whatsoever (collectively, a
          "lien") upon any of the Stockholder's or the
          Corporation's property or assets.  Except with respect to
          the Credit Agreement (as defined in the stock Purchase
          Agreement) which default shall be cured upon the Closing
          under the Stock Purchase Agreement, the Stockholder and
          the Corporation is not in default under any agreement to
          which it is a party which default could impair its
          ability to perform its obligations under this Agreement,
          except where such default would not have a material
          adverse affect on the parties' ability to perform its
          obligations under this Agreement.
                                 ARTICLE IV.

                                MISCELLANEOUS

                    4.1    TERMINATION.  The registration rights
          granted and obligations created hereunder shall terminate
          April 1, 1998.

                    4.2  ASSIGNABILITY.  This Agreement shall be
          binding upon and inure to the benefit of the successors
          and assigns of each party hereto.  Except as provided in
          Section 2.12 hereof, neither this Agreement nor any right
          or obligation hereunder may be assigned or delegated in
          whole or in part to any other person without the prior
          written consent of each other party hereto.

                    4.3  NOTICES.  In any case where any notice or
          other communication is required or permitted to be given
          hereunder (including, without limitation, any change in
          the information set forth in this Section 4.3) such
          notice or communication shall be in writing and (a)
          personally delivered, (b) sent by registered United
          States mail, postage prepaid, return receipt requested,
          (c)  transmitted by telecopy or (d) sent by way of a
          recognized overnight courier service, postage prepaid,
          return receipt requested with instructions to deliver on
          the next business day, in each case as follows:

                    (a)  If to the Corporation, to:

                    Mobile Telecommunication Technologies Corp.
                    110 East 59th Street
                    36th Floor
                    New York, New York  10022
                    Attention: John E. Welsh, III
                    Telecopy: (212) 735-0808

                    with a copy to:

                    Mobile Telecommunication Technologies Corp.
                    200 South Lamar Street
                    Security Centre, South Building
                    Jackson, Mississippi  39201
                    Attention: Leonard G. Kriss, Esq.
                    Telecopy: (601) 944-7194

                    (b)  If to the Stockholder, to:


                    All such notices or other communications shall
          be deemed to have been given or received (i) upon receipt
          if personally delivered, (ii) on the fifth day following
          posting if by registered United States mail, (iii) when
          sent by confirmed telecopy or (iv) on the next business
          day following deposit with an overnight courier.

                    4.4   THIRD PARTY RIGHTS.  Nothing in this
          Agreement, whether express or implied, is intended or
          shall be construed to confer, directly or indirectly,
          upon or give to any other than the Corporation, the
          Stockholder and their respective affiliates, any legal or
          equitable right, remedy or claim under or in respect of
          this Agreement or any covenant, condition or
          other provision contained herein.

                    4.5   CHOICE OF LAW.  This Agreement shall be
          construed and enforced in accordance with and governed by
          the laws of the State of Delaware without giving effect
          to the principles of conflict of laws thereof.

                    4.6   SEVERABILITY.  Should any provision of
          this Agreement be deemed in contradiction with the laws
          of any jurisdiction in which it is to be performed or
          unenforceable for any reason, such provision shall be
          deemed null and void, but this Agreement shall remain in
          force in all other respects.  Should any provision of
          this Agreement be or become ineffective because of
          changes in applicable laws or interpretations thereof or
          should this Agreement fail to include a provision that is
          required as a matter of law, the validity of the other
          provisions of this Agreement shall not be affected
          thereby.  If such circumstances arise, the parties hereto
          shall negotiate in good faith appropriate modifications
          to this Agreement to reflect those changes that are
          required by law.

                    4.7   ENFORCEMENT OF AGREEMENT.  Any action or
          proceeding brought by any party to this Agreement on its
          own behalf, or on behalf of the Corporation, in
          connection with or relating to this Agreement or any
          provision hereof shall be brought only in a federal or
          state court of competent jurisdiction in the United
          States.  Each of the parties hereto, solely in connection
          with any such action or proceeding, does hereby (a)
          submit to the jurisdiction of any such court, (b) waive
          any defense of or relating to lack of jurisdiction with
          respect to any such action or proceeding in any such
          court, (c) waive any defense of or relating to service of
          process in any such action or proceeding in any such
          court and (d) irrevocably appoints the Corporation as its
          agent to accept service of process in such action,
          provided that if the Corporation is the party commencing
          such action or proceeding, it shall give reasonably
          prompt notice thereof to the other party named in such
          action or proceeding.

                    4.8  TRANSFERS.  Any dispositions made pursuant
          to this Agreement shall comply in all respects with the
          Communications Act and the rules and regulations
          promulgated thereunder including, without limitation, the
          limitations on ownership or control of FCC licenses or
          FCC businesses contained in Section 310 of the
          Communications Act.

                    4.9  REFERENCES TO AGREEMENT.  Any reference
          herein to this Agreement shall be deemed to be a
          reference to such Agreement as the same may be modified,
          varied, amended or supplemented from time to time by the
          Stockholder in accordance with the provisions hereof. 
          Unless the context otherwise expressly requires, the
          words "herein," "hereof" and "hereunder" and other words
          of similar import refer to this Agreement as a whole and
          not to any particular Article, Section or other
          subdivision.

                    4.10  ENTIRE AGREEMENT.  This Agreement, the
          Stockholder Agreement and the other agreements and
          documents contemplated herein and therein, constitute the
          entire agreement between the parties hereto and supersede
          any prior agreement or understanding between the parties
          hereto whether oral or written, with respect
          to the matters contemplated hereby and thereby.

                    4.11  HEADINGS, ETC.  The Article and Section
          headings in this Agreement are inserted for convenience
          of reference only and shall not affect the interpretation
          of this Agreement.  Whenever the context shall require,
          each term stated in either the singular or plural shall
          include the singular and the plural.  References herein
          to masculine, feminine or neuter pronouns shall be
          construed to refer to another gender when the context may
          require.

                    4.12  COUNTERPARTS.  This Agreement maybe
          executed in one or more counterparts, each of which shall
          be deemed an original, but all of which shall constitute
          one and the same instrument.

                    4.13  SURVIVAL.  All representations and
          warranties made herein shall survive the execution and
          delivery of this Agreement and any termination of this
          Agreement.

                    4.14  AMENDMENTS.  This Agreement may be amended
          or modified only by a written instrument executed by each
          of the parties hereto or by their respective successors
          and assigns.

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MOBILE
TELECOMMUNICATION TECHNOLOGIES CORP. CONSOLIDATED BALANCE SHEET AS OF MARCH 31,
1996 AND CONSOLIDATED STATEMENT OF OPERATIONS FOR THE QUARTER ENDED MARCH 31,
1996 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
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<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               MAR-31-1996
<CASH>                                       7,064,832
<SECURITIES>                                         0
<RECEIVABLES>                               66,999,939
<ALLOWANCES>                                10,016,131
<INVENTORY>                                          0
<CURRENT-ASSETS>                           114,356,484
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<TOTAL-ASSETS>                             911,988,047
<CURRENT-LIABILITIES>                      126,361,852
<BONDS>                                    363,104,781
                                0
                                     37,800
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<OTHER-SE>                                 421,893,747
<TOTAL-LIABILITY-AND-EQUITY>               911,988,047
<SALES>                                     80,584,096
<TOTAL-REVENUES>                            80,584,096
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<INTEREST-EXPENSE>                           9,989,762
<INCOME-PRETAX>                           (27,952,935)
<INCOME-TAX>                                   620,823
<INCOME-CONTINUING>                       (28,573,758)
<DISCONTINUED>                                       0
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