NYNEX CORP
SC 13D/A, 1997-01-29
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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                    SECURITIES AND EXCHANGE COMMISSION
                          WASHINGTON, D.C.  20549
                                               
                            -------------------


                               SCHEDULE 13D
                 Under the Securities Exchange Act of 1934

                                            
                               -------------

                           (Amendment No.   3  )
                                          -----


                        CAI Wireless Systems, Inc.
- --------------------------------------------------------------------------
                             (Name of Issuer)

            Common Stock                           12476P 10 4
- -----------------------------------   -----------------------------------
   (Title of class of securities)                (CUSIP number)

                             BANX Partnership
                          3900 Washington Street
                        Wilmington, Delaware 19802

                              with copies to:

     P. Alan Bulliner, Esq.                       Morrison DeS. Webb, Esq.
     Vice President-Corporate Secretary           Executive Vice President,
     and Counsel                                  General Counsel and Secretary
     Bell Atlantic Corporation                    NYNEX Corporation
     1717 Arch Street                             1095 Avenue of the Americas
     Philadelphia, PA  19103                      New York, NY  10036
- --------------------------------------------------------------------------
    (Name, address and telephone number of person authorized to receive
                        notices and communications)


- --------------------------------------------------------------------------
          (Date of event which requires filing of this statement)


If the filing person has previously filed a statement on Schedule 13G to
report the acquisition which is the subject of this Schedule 13D, and is
filing this schedule because of Rule 13d-1(b)(3) or (4), check the
following box   [_].


Check the following box if a fee is being paid with the statement   [_].


(A fee is not required only if the reporting person: (1) has a previous
statement on file reporting beneficial ownership of more than five percent
of the class of securities described in Item 1; and (2) has filed no
amendment subsequent thereto reporting beneficial ownership of five
percent or less of such class.)  (See Rule 13d-7.)


Note:  When filing this statement in paper form, six copies of this
statement, including exhibits, should be filed with the Commission. See
Rule 13d-1(a) for other parties to whom copies are to be sent.


                     (Continued on following page(s))
<PAGE>

<PAGE>


 CUSIP No.       12476P 10 4             13D        


     1     NAME OF REPORTING PERSON:    BANX Partnership

           S.S. OR I.R.S. IDENTIFICATION NO.
           OF ABOVE PERSON:

     2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:       (a) [x]
                                                                   (b) [_]

     3     SEC USE ONLY

     4     SOURCE OF FUNDS:  AF


     5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS             [_]
           REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

     6     CITIZENSHIP OR PLACE OF      Delaware
           ORGANIZATION:


    NUMBER OF     7   SOLE VOTING POWER:       0
     SHARES

  BENEFICIALLY    8   SHARED VOTING POWER:     19,862,150
    OWNED BY

      EACH        9   SOLE DISPOSITIVE POWER:  0
    REPORTING

   PERSON WITH   10   SHARED DISPOSITIVE       19,862,150
                      POWER:

    11     AGGREGATE AMOUNT BENEFICIALLY       19,862,150
           OWNED BY REPORTING PERSON:

    12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)               [_]
           EXCLUDES CERTAIN SHARES:


    13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):  34.6%

    14     TYPE OF REPORTING PERSON:    PN

<PAGE>

<PAGE>


 CUSIP No.       12476P 10 4             13D          


     1     NAME OF REPORTING PERSON:    MMDS Holdings II, Inc.

           S.S. OR I.R.S. IDENTIFICATION NO.
           OF ABOVE PERSON:

     2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:       (a) [x]
                                                                   (b) [_]

     3     SEC USE ONLY

     4     SOURCE OF FUNDS:  AF


     5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS             [_]
           REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

     6     CITIZENSHIP OR PLACE OF      Delaware
           ORGANIZATION:


    NUMBER OF     7   SOLE VOTING POWER:       0
     SHARES

  BENEFICIALLY    8   SHARED VOTING POWER:     36,501,085
    OWNED BY

      EACH        9   SOLE DISPOSITIVE POWER:   0
    REPORTING

   PERSON WITH   10   SHARED DISPOSITIVE       36,501,085
                      POWER:

    11     AGGREGATE AMOUNT BENEFICIALLY       36,501,085
           OWNED BY REPORTING PERSON:

    12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)               [_]
           EXCLUDES CERTAIN SHARES:


    13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):  49.2%

    14     TYPE OF REPORTING PERSON:    CO

<PAGE>

<PAGE>


 CUSIP No.       12476P 10 4             13D     


     1     NAME OF REPORTING PERSON:    Bell Atlantic Corporation

           S.S. OR I.R.S. IDENTIFICATION NO.
           OF ABOVE PERSON:

     2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:       (a) [x]
                                                                   (b) [_]

     3     SEC USE ONLY

     4     SOURCE OF FUNDS:  AF


     5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS             [_]
           REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

     6     CITIZENSHIP OR PLACE OF      Delaware
           ORGANIZATION:


    NUMBER OF     7   SOLE VOTING POWER:       0
     SHARES

  BENEFICIALLY    8   SHARED VOTING POWER:     36,626,085
    OWNED BY

      EACH        9   SOLE DISPOSITIVE POWER:  0
    REPORTING

   PERSON WITH   10   SHARED DISPOSITIVE       36,626,085
                      POWER:

    11     AGGREGATE AMOUNT BENEFICIALLY       36,626,085
           OWNED BY REPORTING PERSON:

    12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)               [_]
           EXCLUDES CERTAIN SHARES:


    13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):  49.4%

    14     TYPE OF REPORTING PERSON:    CO


<PAGE>

<PAGE>


 CUSIP No.       12476P 10 4             13D   


     1     NAME OF REPORTING PERSON:    NYNEX MMDS Holding Company

           S.S. OR I.R.S. IDENTIFICATION NO.
           OF ABOVE PERSON:

     2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:       (a) [x]
                                                                   (b) [_]

     3     SEC USE ONLY

     4     SOURCE OF FUNDS:  AF


     5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS             [_]
           REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

     6     CITIZENSHIP OR PLACE OF      Delaware
           ORGANIZATION:


    NUMBER OF     7   SOLE VOTING POWER:       0
     SHARES

  BENEFICIALLY    8   SHARED VOTING POWER:     36,626,085
    OWNED BY

      EACH        9   SOLE DISPOSITIVE POWER:  0
    REPORTING

   PERSON WITH   10   SHARED DISPOSITIVE       36,626,085
                      POWER:

    11     AGGREGATE AMOUNT BENEFICIALLY       36,626,085
           OWNED BY REPORTING PERSON:

    12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)               [_]
           EXCLUDES CERTAIN SHARES:


    13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):  49.4%

    14     TYPE OF REPORTING PERSON:    CO

<PAGE>

<PAGE>


 CUSIP No.       12476P 10 4             13D  


     1     NAME OF REPORTING PERSON:    NYNEX Corporation

           S.S. OR I.R.S. IDENTIFICATION NO.
           OF ABOVE PERSON:

     2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:       (a) [x]
                                                                   (b) [_]

     3     SEC USE ONLY

     4     SOURCE OF FUNDS:  WC


     5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS             [_]
           REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

     6     CITIZENSHIP OR PLACE OF      Delaware
           ORGANIZATION:


    NUMBER OF     7   SOLE VOTING POWER:       0
     SHARES

  BENEFICIALLY    8   SHARED VOTING POWER:     36,626,085
    OWNED BY

      EACH        9   SOLE DISPOSITIVE POWER:  0
    REPORTING

   PERSON WITH   10   SHARED DISPOSITIVE       36,626,085
                      POWER:

    11     AGGREGATE AMOUNT BENEFICIALLY       36,626,085
           OWNED BY REPORTING PERSON:

    12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)               [_]
           EXCLUDES CERTAIN SHARES:


    13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):  49.4%

    14     TYPE OF REPORTING PERSON:    CO

<PAGE>

<PAGE>


     ITEM 1    SECURITY AND ISSUER.

               This Statement constitutes Amendment No. 3 to the Statement
     on Schedule 13D (the "Schedule 13D") previously filed with the
     Securities and Exchange Commission by BANX Partnership, a Delaware
     general partnership ("BANX"); its general partners, MMDS Holdings II,
     Inc., a Delaware corporation ("MMDS Holdings"), and NYNEX MMDS Holding
     Company, a Delaware corporation ("NYNEX MMDS"); Bell Atlantic
     Corporation, a Delaware corporation and the indirect parent of MMDS
     Holdings ("BAC"); and NYNEX Corporation, a Delaware corporation and
     the direct parent corporation of NYNEX MMDS ("NYNEX"; and, together
     with BANX, MMDS Holdings, NYNEX MMDS and BAC, the "Reporting
     Persons"), with respect to the common stock, no par value (the "Common
     Stock"), of CAI Wireless Systems, Inc., a Connecticut corporation
     ("CAI") located at 18 Corporate Woods Blvd., Albany, NY 12211.  Unless
     otherwise indicated, all capitalized terms used herein have the
     respective meanings ascribed thereto in the Schedule 13D.

     ITEM 2.   IDENTITY AND BACKGROUND.

               Schedules I, II, III and IV annexed to the Schedule 13D are
     hereby amended in their entirety to read in full as set forth on
     Schedules I, II, III and IV annexed hereto and incorporated herein by
     reference.

     ITEM 3.   SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

               At the Stage II Closing under the Purchase Agreement, which
     occurred on September 29, 1995, BANX purchased from the Corporation
     for aggregate cash consideration of $70 million, (i) 7,000 shares of
     14% Senior Preferred Stock of the Corporation, par value $10,000 per
     share (the "Senior Preferred Stock"), and (ii) a warrant (the "Stage
     II Warrant") to purchase convertible preferred stock, no par value, of
     the Corporation (the "Voting Preferred Stock").  In addition, BANX
     transferred one-half of its interest in (i) the Term Notes (and all
     accrued interest thereon) and (ii) the Senior Preferred Stock, to each
     of MMDS Holdings and NYNEX MMDS, and upon surrender by BANX to the
     Corporation, the Corporation cancelled the Term Notes issued at the
     Stage I Closing and the certificates representing the Senior Preferred
     Stock registered in the name of BANX and issued Term Notes in the
     principal amount of $15,000,000 and share certificates representing
     3,500 shares of Senior Preferred Stock to each of MMDS Holdings and
     NYNEX MMDS.

               At the Stage II Closing, the Term Notes pursuant to their
     terms became unsecured obligations of the Corporation, subordinated to
     certain senior indebtedness of the Corporation, bearing interest at
     14% per annum, and also became convertible into the Senior Preferred
     Stock, at an initial conversion price of $10,000 per share, subject to
     adjustment.

<PAGE>

<PAGE>
     

               The Senior Preferred Stock is convertible, at the option of
     the holder at any time on or after the date of issuance of such shares
     and prior to the fifth anniversary of the original issue date, into
     the number of Voting Preferred Shares as is determined by dividing
     $10,000 by the Tier 1 Conversion Price (as defined in the terms of the
     Senior Preferred Stock).  Dividends on the Senior Preferred Stock are
     cumulative from the Stage II Closing and are payable quarterly at an
     annual rate of 14% when and as declared by the Board of Directors of
     CAI out of any funds legally available therefor.

               The Stage II Warrant permits the holder, for a period of six
     years, to acquire shares of Voting Preferred Stock at four different
     exercise prices.  The exercise prices of the Stage II Warrant will be
     determined in accordance with certain formulas, set forth in the Stage
     II Warrant, based on the number of Fully-Diluted Common Shares (as
     defined in the Stage II Warrant) immediately after consummation of the
     Stage II Closing, subject to adjustment, including antidilution
     adjustment.  Each share of Voting Preferred Stock initially is
     convertible, at the option of the holder, into 100 shares of Common
     Stock.  The holders of Voting Preferred Stock are entitled to certain
     voting rights with respect to the election of directors of the
     Corporation and other matters.  The terms of the Voting Preferred
     Stock are set forth in Attachment 2.3 to the Amendment Agreement dated
     as of September 28, 1995 among BANX, the Corporation and its
     subsidiaries party thereto, which amends certain provisions of the
     Purchase Agreement and is set forth as Exhibit 1 to Amendment No. 2
     to the Schedule 13D.

               The conversion of the Senior Preferred Stock (including the
     shares issuable upon conversion of the Term Notes into Senior
     Preferred Stock) and the exercise of the Stage I and Stage II Warrant
     gives the BANX Affiliates the right to acquire, for an aggregate
     amount of approximately $302 million (including consideration
     originally paid for the Term Notes, the Senior Preferred Stock and
     such Warrants), shares of the Voting Preferred Stock which would be
     convertible into approximately 45% of the Fully-Diluted Common Shares
     and, in the event of the issuance after the Stage II Closing of any
     additional of common stock, no par value of the Corporation ("Common
     Shares"), the right to acquire additional shares of Voting Preferred
     Stock at the same per share exercise prices, so that the BANX
     Affiliates will maintain the right to acquire 45% of the Fully-Diluted
     Common Shares from time to time.  

               If the conversion rights under the Term Notes, the Senior
     Preferred Stock and the Voting Preferred Stock, and the exercise
     rights under the Stage I Warrants, the Stage II Warrants and the
     Common Stock Warrants (as defined below) were exercised in full
     immediately after the Stage II Closing, based on information furnished
     by the Corporation, BANX would acquire approximately 45.3% of the
     Fully-Diluted Common Shares (as defined



<PAGE>

<PAGE>
     

     in the Stage II Warrant); 27% of such Fully-Diluted Common Shares (or
     21,900,651 Common Shares) at a price per share of $6.01; 9% of such
     Fully-Diluted Common Shares (or 7,300,217 Common Shares) at a price
     per share of $8.27; 4.5% of such Fully-Diluted Common Shares (or
     3,650,108 Common Shares) at a price per share of $12.78; and 4.5% of
     such Fully-Diluted Common Shares (or 3,650,108 Common Shares) at a
     price per share of $17.29.

               In addition, each of MMDS Holdings, Inc., a wholly owned
     indirect subsidiary of Bell Atlantic Corporation, and NYNEX MMDS was
     issued a warrant, dated as of January 9, 1995 (the "Common Stock
     Warrants"), which permits the holder, for a period of five years, to
     acquire 125,000 Common Shares at a price per share of $7.50, subject
     to certain adjustments, including antidilution adjustments.

               The foregoing description of the Senior Preferred Stock, the
     Stage II Warrants and the Common Stock Warrants is qualified in its
     entirety by reference to the complete text of each, a copy of which is
     filed as part of Exhibit 1 and as Exhibits 4, 5, and 6, respectively to
     Amendment No. 2 to the Schedule 13D.

               BANX obtained the funds necessary to acquire the Senior
     Preferred Stock and the Stage II Warrant from MMDS Holdings and NYNEX
     MMDS.  MMDS Holdings obtained the funds it provided to BANX from funds
     provided from its affiliates from the working capital of its
     affiliates.  NYNEX MMDS obtained the funds it provided to BANX from
     funds provided from its parent company from the working capital of its
     parent company.


     ITEM 4.   PURPOSE OF TRANSACTION.

               The Reporting Persons have acquired the securities purchased
     under the Purchase Agreement and the Common Stock Warrants as an
     investment.  Depending on market conditions, the Reporting Persons may
     acquire additional Common Shares through open market purchases, in
     privately negotiated transactions or otherwise, subject to compliance
     with Section 2.9 of the Purchase Agreement.  In addition, the
     Reporting Persons may use their rights as holders of the securities
     purchased under the Purchase Agreement (the "Securities") to seek to
     cause the Corporation to comply with its obligations under the
     Purchase Agreement and the related agreements and arrangements,
     including without limitation the Business Relationship Agreement.



<PAGE>

<PAGE>
     

               While it is not the present intention of BANX, MMDS Holdings
     or NYNEX MMDS to do so, depending upon market conditions and the
     course of action that the partners determine to pursue, the partners
     (i) may, directly or indirectly, seek to acquire control of the
     Corporation, or (ii) in compliance with applicable securities laws,
     may, directly or indirectly, attempt to dispose of some or all of the
     shares of Common Shares then beneficially owned by any of the
     Reporting Persons, in the open market, in privately negotiated
     transactions or otherwise.

               Other than as disclosed in this Statement and except for
     enforcement by BANX and its affiliates of their respective rights
     under the Transaction Documents in the ordinary course of their
     businesses, none of the Reporting Persons, and to the best knowledge
     of the Reporting Persons, none of the persons named in Schedules I,
     II, III and IV hereto, presently has any plan or proposal that relates
     to or might result in any of the events described in Items (a) through
     (j) of the instructions to Item 4 of Schedule 13D.

     ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER.

               (a)(b) BANX has shared voting rights over, and therefore
     beneficial ownership of 19,862,150 Common Shares, representing
     approximately 34.6% of the Fully-Diluted Common Shares (as defined in
     the Stage II Warrant).  Each of MMDS Holdings, NYNEX MMDS, BAC and
     NYNEX has shared voting and dispositive power over and beneficial
     ownership of 36,626,085 Common Shares, representing approximately
     45.3% of the Fully-Diluted Common Shares (as defined in the Stage II
     Warrant).

     ITEM 6.   CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS
               WITH RESPECT TO SECURITIES OF THE ISSUER. 

               On December 19, 1996, the Board of Directors of NYNEX
     approved the Modification Agreement dated as of December 12, 1996 (the
     "Modification Agreement") entered into by CAI, BANX, MMDS Holdings,
     Inc., MMDS Holdings II, Inc., NYNEX MMDS Company and NYNEX MMDS
     Holding Company (the "BANX Parties").

               As previously disclosed in the joint press release dated
     December 13, 1996 filed as an Exhibit hereto and in CAI's Form 8-K
     filed January 3, 1997, the Modification Agreement, among other things,
     provides CAI or its designee the right to acquire all, but not less
     than all, of the $100 million investment by the BANX Parties, for a
     period of 12 months from December 12, 1996.  Such investment consists
     of:  (i) 7,000 shares of 14% Senior Preferred Stock of CAI, par value
     $10,000 per share (the "Senior Preferred Stock"), (ii) $30 million
     principal amount of Term Notes (the "Term Notes"), and (iii) two
     warrants (the

<PAGE>

<PAGE>
     

     "Warrants") to purchase convertible preferred stock, no par value, of
     CAI (the "Voting Preferred Stock"; and together with the Senior
     Preferred Stock, the Term Notes and the Warrants, the "CAI
     Securities"). If notice to purchase the CAI Securities is received by
     the BANX Parties within the first 120 days following execution of the
     Agreement, the purchase price is $121,000,000; if received in the next
     120 days, the purchase price is $100,000,000, together with accrued
     interest and dividends, plus $10,000,000; and if notice is received in
     the balance of the year, the purchase price is $100,000,000, together
     with accrued interest and dividends, plus $20,000,000.  No notice of
     intended purchase has been received as of the date of this filing.

               The BANX Parties' $100,000,000 investment in the CAI
     Securities includes convertible debt and preferred stock and warrants,
     all of which if fully converted and exercised would result in the
     right to acquire up to approximately 45% of the equity of CAI.  As
     part of the Modification Agreement, the Initial Tier 1 Conversion
     Price and the Initial Tier I Exercise Price for the Senior Preferred
     Stock and the Warrants, respectively, were reduced to $3.86 per common
     share equivalent and the Initial Tier 2 Exercise Price, the Initial
     Tier 3 Exercise Price and the Initial Tier 4 Exercise Price were
     proportionately reduced, in each case subject to adjustment as
     provided in the Warrants.  The exercise prices are subject to further
     reduction in the event the option to acquire the CAI Securities is not
     exercised within 180 days.

               In the event that CAI does not purchase the CAI Securities
     or cannot locate a third party purchaser to do so within the first 270
     days, the BANX Parties have the right to sell the CAI Securities free
     and clear of the option.

               The foregoing description of the Modification Agreement is
     qualified in its entirety by reference to the complete text of the
     Modification Agreement, a copy of which is filed as Exhibit 1 hereto
     and incorporated herein by reference.



<PAGE>

<PAGE>
     

     ITEM 7.   MATERIALS TO BE FILED AS EXHIBITS.

     1.   Modification Agreement, dated as of December 12, 1996, among CAI,
          BANX, MMDS Holdings, Inc., MMDS Holdings, NYNEX MMDS Company and
          NYNEX MMDS.

     2.   Joint Press Release dated Decmeber 13, 1996.

     3.   Current Report on Form 8-K (incorporated by reference to the Form
          8-K filed by CAI with the SEC on January 3, 1997).

     4.   Joint Filing Letter Agreement, dated as of March 29, 1995.



<PAGE>

<PAGE>
     


                                    SIGNATURE
                                    ---------

               After reasonable inquiry and to the best of my knowledge and
     belief, I certify that the information set forth in this statement is
     true, complete and correct.


     Date:  January 27, 1997                      BANX PARTNERSHIP,
                                             a Delaware general partnership

                                             By:  MMDS HOLDINGS II, Inc.,
                                                  General Partner


                                             By:  /s/  Jane F. Ludlow      
                                                 ---------------------------
                                                 Name:  Jane F. Ludlow
                                                 Title: Secretary


                                             By:  NYNEX MMDS HOLDING
                                                  COMPANY,
                                                  General Partner


                                             By:  /s/  Steven Fadem        
                                                ---------------------------
                                                Name:  Steven Fadem
                                                Title: Acting President




<PAGE>

<PAGE>
     

                                    SIGNATURE
                                    ---------

               After reasonable inquiry and to the best of my knowledge and
     belief, I certify that the information set forth in this statement is
     true, complete and correct.



                                   BELL ATLANTIC CORPORATION




     Date:  January 27, 1997            By:  /s/  P. Alan Bulliner         
                                        --------------------------
                                        Name:    P. Alan Bulliner
                                        Title:   Secretary





<PAGE>

<PAGE>
     

                                    SIGNATURE
                                    ---------

               After reasonable inquiry and to the best of my knowledge and
     belief, I certify that the information set forth in this statement is
     true, complete and correct.




                                   MMDS HOLDINGS II, INC.




     Date:  January 27, 1997            By:  /s/ Jane F. Ludlow            
                                             ---------------------
                                        Name:    Jane F. Ludlow
                                        Title:   Secretary

 



<PAGE>

<PAGE>
     

                                    SIGNATURE
                                    ---------

               After reasonable inquiry and to the best of my knowledge and
     belief, I certify that the information set forth in this statement is
     true, complete and correct.


                                   NYNEX MMDS HOLDING COMPANY


     Date:  January 27, 1997            By: /s/ Steven Fadem               
                                            ---------------------
                                        Name:   Steven Fadem
                                        Title:  Acting President




<PAGE>

<PAGE>
     

                                    SIGNATURE
                                    ---------

               After reasonable inquiry and to the best of my knowledge and
     belief, I certify that the information set forth in this statement is
     true, complete and correct.


                                   NYNEX CORPORATION


     Date:  January 27, 1997            By: /s/ Darlene D. Kleiner         
                                           --------------------------------
                                        Name:   Darlene D. Kleiner
                                        Title:  Assistant Secretary





<PAGE>

<PAGE>
     

                                                                 SCHEDULE I

                             MMDS HOLDINGS II, INC.

                       A DELAWARE CORPORATION LOCATED AT 
                          1310 NORTH COURT HOUSE ROAD,
                              ARLINGTON, VA  22201

                        EXECUTIVE OFFICERS AND DIRECTORS

     Name and Address                 Position and Principal Occupation
     ----------------                 ---------------------------------

     Janet M. Garrity                 President, Treasurer and
     501 Carr Road, Suite 201         Director
     Wilmington, DE  19809

     Alexander H. Good                Chief Executive Officer
     1320 N. Court House Road
     Arlington, VA  22201

     Jane Ludlow                      Secretary
     1717 Arch Street
     32nd Floor
     Philadelphia, PA  19103

     Ellen C. Wolf                    Chief Financial Officer and
     Bell Atlantic Corporation        Director
     1717 Arch Street
     Philadelphia, PA  19103

     William O. Albertini             Director
     Bell Atlantic Corporation
     1717 Arch Street
     Philadelphia, PA  19103

     Joshua W. Martin                 Director
     Bell Atlantic - Delaware
     901 Tatnall Street
     Wilimington, DE 19801



<PAGE>

<PAGE>
     



               None of the individuals listed above in the last five years
     (i) has been convicted in a criminal proceeding or (ii) was party to a
     civil proceeding of a judicial or administrative body of competent
     jurisdiction and as a result of such proceeding was or is subject to a
     judgment, decree or final order enjoining future violations of, or
     prohibiting or mandating activities subject to, Federal or State
     securities laws or finding any violation with respect to such laws. 
     Each of the individuals listed above is a citizen of the United
     States.




<PAGE>

<PAGE>
     
                                                                SCHEDULE II

                            BELL ATLANTIC CORPORATION
                            --------------------------

                             A DELAWARE CORPORATION
                          LOCATED AT 1717 ARCH STREET,
                             PHILADELPHIA, PA  19103

                        EXECUTIVE OFFICERS AND DIRECTORS

     Name and Address                 Position and Principal Occupation
     ----------------                 ---------------------------------
                                   
     Raymond W. Smith                 Chairman of the Board and Chief
     Bell Atlantic Corporation        Executive Officer of BAC
     1310 N. Court House Road
     Arlington, VA  22201

     Lawrence T. Babbio, Jr.          Vice Chairman of BAC
     Bell Atlantic Corporation
     1717 Arch Street
     Philadelphia, PA  19103
     
     James G. Cullen                  Vice Chairman of BAC
     Bell Atlantic Corporation
     1310 N. Court House Road
     Arlington, VA  22201

     William O. Albertini             Executive Vice President and
     Bell Atlantic Corporation        Chief Financial Officer of BAC
     1717 Arch Street
     Philadelphia, PA  19103

     Alexander H. Good                Vice President-Strategic
     Bell Atlantic Corporation        Planning and Corporate
     1310 N. Court House Road         Development of BAC
     Arlington, VA  22201

     P. Alan Bulliner                 Vice President-Corporate
     Bell Atlantic Corporation        Secretary and Counsel of BAC
     1717 Arch Street
     Philadelphia, PA  19103

     Doreen A. Toben                  Vice President-Finance and
     Bell Atlantic Corporation        Controller of BAC
     1717 Arch Street
     Philadelphia, PA  19103

     Ellen C. Wolf                    Vice President-Treasurer
     Bell Atlantic Corporation
     1717 Arch Street
     Philadelphia, PA  19103

     Patrick C.G. Coulter             Vice President-Corporate
     Bell Atlantic Corporation        Communication
     1310 N. Court House Road
     Arlington, VA  22201

     Kevin P. Pennington              Vice President-Human Resources
     Bell Atlantic Corporation
     1310 N. Court House Road
     Arlington, VA  22201
     
     


<PAGE>
<PAGE>
     

     John F. Gamba                    Senior Vice President-Corporate 
     Bell Atlantic Corporation        Resources and Performance
     1310 N. Court House Road         Assurance of BAC
     Arlington, VA  22201             

     Bruce S. Gordon                  Group President-Consumer and
     Bell Atlantic Network            Small Business Services of Bell
     Services, Inc.                   Atlantic Network Services, Inc.
     1310 N. Court House Road
     Arlington, VA  22201

     Stuart C. Johnson                Group President-Large Business
     Bell Atlantic Network            and Information Services of Bell
     Services, Inc.                   Atlantic Network Services, Inc.
     1310 N. Court House Road
     Arlington, VA  22201

     Thomas R. McKeough               Philadelphia, PA  19103Vice
     Bell Atlantic Corporation        President-Mergers and
     1717 Arch Street                 Acquisitions and Associate
                                      General Counsel of BAC

     James R. Young                   Vice President and General
     Bell Atlantic Corporation        Counsel of BAC
     1310 N. Court House Road
     Arlington, VA  22201

     William W. Adams                 Director of BAC
     11 Spring Dell Road
     Lancaster, PA  17601

     Thomas E. Bolger                 Chairman of the Executive
     Bell Atlantic Corporation        Committee of the Board of
     1717 Arch Street                 Directors of BAC
     Philadelphia, PA  19103

     Frank C. Carlucci                Chairman of The Carlyle Group
     The Carlyle Group                (merchant banking); Director of
     1001 Pennsylvania Avenue, N.W.   BAC
     Washington, DC  20004

     Eckard Pfeiffer                  President and Chief Operating
     Compaq Computer Corporation      Officer
     P.O. Box 69200-MS 110802         Compaq Computer Corporation;
     Houston, TX 77269                Director of BAC

     James H. Gilliam, Jr.            Executive Vice President and
     Beneficial Corporation           General Counsel of Beneficial
     1 Christina Centre               Corporation (financial
     301 N. Walnut Street             services); Director of BAC
     Wilmington, DE  19801

     Thomas H. Kean                   President of Drew University;
     Drew University                  Director of BAC
     36 Madison Avenue
     Madison, NJ  07940

     John F. Maypole                  Managing Partner of Peach State
     157 Lake Dr.                     Real Estate Holding Company and
     Mountain Lakes, NJ  07046        Consultant; Director of BAC




<PAGE>

<PAGE>
     


     Joseph Neubauer                  Chairman of the Board and Chief
     ARAMARK Corporation              Executive Officer of ARAMARK
     1101 Market Street               Corporation; Director of BAC
     Philadelphia, PA  19107

     Thomas H. O'Brien                Chairman and Chief Executive
     PNC Bank Corp.                   Officer of PNC Bank Corp.;
     5th Avenue & Wood Street         Director of BAC
     Pittsburgh, PA  15222

     Rozanne L. Ridgway               Co-Chair of The Atlantic Council
     The Atlantic Council of the      of the United States (a private
     United States                    foreign policy institute);
     910 17th Street, N.W.            Director of BAC
     Washington, DC  20006

     Shirley Young                    Vice President, China Strategic
     General Motors Corporation       Development of General Motors
     3044 West Grand Boulevard        Corporation; Director of BAC
     Detroit, MI  48202


               None of the individuals listed above in the last five years
     (i) has been convicted in a criminal proceeding or (ii) was party to a
     civil proceeding of a judicial or administrative body of competent
     jurisdiction and as a result of such proceeding was or is subject to a
     judgment, decree or final order enjoining future violations of, or
     prohibiting or mandating activities subject to, Federal or State
     securities laws or finding any violation with respect to such laws. 
     Each of the individuals listed above is a citizen of the United
     States.



<PAGE>

<PAGE>
     

                                                               SCHEDULE III
     

                           NYNEX MMDS HOLDING COMPANY
                           --------------------------

                             A DELAWARE CORPORATION
                     LOCATED AT 1095 AVENUE OF THE AMERICAS,
                               NEW YORK, NY  10036


                        EXECUTIVE OFFICERS AND DIRECTORS


     NAME AND ADDRESS                      POSITION AND PRINCIPAL OCCUPATION
     ----------------                      ---------------------------------

     Steven S. Fadem                       Director and Vice President,
     NYNEX Corporation                     President of NYNEX Entertainment &
     22nd Floor                            Information Services Company
     1166 Avenue of the Americas
     New York, NY  10036

     Melvin Meskin                         Director and President,
     NYNEX Corporation                     Vice President and Comptroller of
     41st Floor                            NYNEX Corporation
     1095 Avenue of the Americas
     New York, NY 10036

     Timothy J. Downey                     Vice President,                  
     NYNEX Corporation                     Director of Corporate Strategy and
     22nd Floor                            Planning, NYNEX Entertainment &
     1166 Avenue of the Americas           Information Services Company
     New York, NY  10036

     Darlene D. Kleiner                    Secretary,
     NYNEX Corporation                     Counsel and Assistant Secretary of
     38th Floor                            NYNEX Corporation
     1095 Avenue of the Americas
     New York, NY  10036


<PAGE>

<PAGE>
     

     Andrew Coticchio                      Comptroller,
     NYNEX Corporation                     Assistant Comptroller of NYNEX
     Room 3023                             Corporation
     1095 Avenue of the Americas
     New York, NY  10036

     Roslyn G. Grigoleit                   Assistant Comptroller,
     NYNEX Corporation                     Staff Director of State Tax
     31st Floor                            Compliance of NYNEX Corporation 
     1095 Avenue of the Americas
     New York, NY  10036

     Christine A. Hillery                  Assistant Comptroller,
     NYNEX Corporation                     Director of Sales and Gross Receipts
     Room 3107                             of NYNEX Corporation
     1095 Avenue of the Americas
     New York, NY  10036

     Richard Weiss                         Assistant Comptroller,
     NYNEX Corporation                     Director of Tax Administration of 
     31st Floor                            NYNEX Corporation
     1095 Avenue of the Americas
     New York, NY  10036

     Colson P. Turner                      Treasurer,
     NYNEX Corporation                     Vice President and Treasurer of
     41st Floor                            NYNEX Corporation
     1095 Avenue of the Americas
     New York, NY  10036

     Joseph A. Tomitz                      Assistant Treasurer,
     NYNEX Corporation                     Assistant Treasurer of NYNEX
     30th Floor                            Corporation
     1095 Avenue of the Americas
     New York, NY  10036





<PAGE>

<PAGE>
     

     None of the individuals listed above in the last five years (i) has
     been convicted in a criminal proceeding or (ii) was party to a civil
     proceeding of a judicial or administrative body of competent
     jurisdiction and as a result of such proceeding was or is subject to a
     judgment, decree or final order enjoining future violations of, or
     prohibiting or mandating activities subject to, Federal or State
     securities laws or finding any violation with respect to such laws. 
     Each of the individuals listed above is a citizen of the United
     States.




<PAGE>
<PAGE>
     

                                                                SCHEDULE IV
     

                                NYNEX CORPORATION
                             A DELAWARE CORPORATION
                     LOCATED AT 1095 AVENUE OF THE AMERICAS,
                               NEW YORK, NY  10036


                        EXECUTIVE OFFICERS AND DIRECTORS


     NAME AND ADDRESS                      POSITION AND PRINCIPAL OCCUPATION
     ----------------                      ---------------------------------

     Ivan G. Seidenberg                    Director, Chairman of the Board and 
     NYNEX Corporation                     Chief Executive Officer of NYNEX
     41st Floor                            Corporation
     1095 Avenue of the Americas
     New York, NY  10036

     Frederic V. Salerno                   Director and Vice Chairman - 
     NYNEX Corporation                     Finance and Business Development of 
     41st Floor                            NYNEX Corporation
     1095 Avenue of the Americas
     New York, NY  10036

     Morrison DeS. Webb                    Executive Vice President, General
     NYNEX Corporation                     Counsel and Secretary of NYNEX
     41st Floor                            Corporation
     1095 Avenue of the Americas
     New York, NY  10036

     Robert T. Anderson                    Vice President - Business 
     NYNEX Corporation                     Development of NYNEX Corporation
     41st Floor
     1095 Avenue of the Americas
     New York, NY  10036



<PAGE>

<PAGE>
     

     Jeffrey A. Bowden                     Vice President - Strategy and 
     NYNEX Corporation                     Corporate Assurance of NYNEX 
     41st Floor                            Corporation
     1095 Avenue of the Americas
     New York, NY  10036

     John M. Clarke                        Vice President - Law of NYNEX
     NYNEX Corporation                     Corporation
     41st Floor
     1095 Avenue of the Americas
     New York, NY  10036

     Saul Fisher                           Vice President - Law of NYNEX
     NYNEX Corporation                     Corporation
     41st Floor
     1095 Avenue of the Americas
     New York, NY  10036
      
     Patrick F.X. Mulhearn                 Vice President - Public Relations of
     NYNEX Corporation                     NYNEX Corporation
     41st Floor
     1095 Avenue of the Americas
     New York, NY  10036

     Donald J. Sacco                       Vice President - Human Resources of
     NYNEX Corporation                     NYNEX Corporation
     41st Floor
     1095 Avenue of the Americas
     New York, NY  10036

     Thomas J. Tauke                       Vice President - Government Affairs
     NYNEX Government Affairs Company      of NYNEX Corporation
     1300 I Street, NW
     Washington, DC  20005





<PAGE>

<PAGE>
     

     Colson P. Turner                      Vice President and Treasurer of
     NYNEX Corporation                     NYNEX Corporation
     41st Floor
     1095 Avenue of the Americas
     New York, NY  10036

     Melvin Meskin                         Vice President and Comptroller of
     NYNEX Corporation                     NYNEX Corporation
     41st Floor
     1095 Avenue of the Americas
     New York, NY 10036

     Richard W. Blackburn                  President and Group Executive of 
     NYNEX Corporation                     Nynex Worldwide Communications
     41st Floor                            Media Group
     1095 Avenue of the Americas
     New York, NY  10036

     Arnold J. Eckelman                    Executive Vice President and Group 
     NYNEX Corporation                     Executive - Metro, NYNEX 
     41st Floor                            Telecommunications
     1095 Avenue of the Americas
     New York, NY  10036

     Richard A. Jalkut                     President and Group Executive of
     NYNEX Corporation                     NYNEX Telecommunications
     41st Floor
     1095 Avenue of the Americas
     New York, NY  10036

     Donald B. Reed                        President and Group Executive of
     NYNEX Corporation                     NYNEX External Affairs and 
     41st Floor                            Corporate Communications
     1095 Avenue of the Americas
     New York, NY  10036




<PAGE>

<PAGE>
     

     John Brademas                         Director of NYNEX Corporation; 
     New York University                   President Emeritus of New York
     11 West 42nd Street, Suite 400        University
     New York, NY 10036

     Richard L. Carrion                    Director of NYNEX Corporation;
     Banco Popular de Puerto Rico          President and Chief Executive Officer
     209 Munoz Rivera Avenue               of Banco Popular de Puerto Rico
     Hato Rey, PR 00918

     Lodewijk J.R. de Vink                 Director of NYNEX Corporation;
     Warner-Lambert Company                President and Chief Operating Officer
     201 Tabor Road                        of Warner-Lambert Company
     Morris Plains, NJ  07950

     Stanley P. Goldstein                  Director of NYNEX Corporation;
     CVS Corporation                       Chairman of the Board and Chief 
     One CVS Drive                         Executive Officer of CVS Corporation
     Woonsocket, RI  02895

     Helene L. Kaplan                      Director of NYNEX Corporation;
     Skadden, Arps, Slate,                 Of Counsel to Skadden Arps, Slate
     Meagher & Flom,                       Meagher & Flom, L.L.P. 
     919 Third Avenue                      
     New York, NY 10022

     Elizabeth T. Kennan                   Director of NYNEX Corporation;
     197 County Road                       President Emeritus of Mount Holyoke
     Ipswich, MA  01938                    College

     Edward E. Phillips                    Director of NYNEX Corporation;
     83 Webster Road                       Director of  New England Mutual
     Weston, MA 02193                      Life Insurance Company

     Hugh B. Price                         Director of NYNEX Corporation;
     National Urban League, Inc.           President and Chief Executive Officer
     500 East 62nd Street                  of National Urban League, Inc.
     New York, NY  10021



<PAGE>

<PAGE>
     

     Walter V. Shipley                     Director of NYNEX Corporation;
     The Chase Manhattan Corporation       Chairman of the Board and Chief
     270 Park Avenue                       Executive Officer of The Chase
     New York, NY 10017-2070               Manhattan Corporation

     John R. Stafford                      Director of NYNEX Corporation;
     American Home Products Corporation    Chairman of the Board, President
     and 5 Giralda Farms                   Chief Executive Officer of
     American Madison, NJ 07940            Home Products Corporation



     None of the individuals listed above in the last five years (i) has
     been convicted in a criminal proceeding or (ii) was party to a civil
     proceeding of a judicial or administrative body of competent
     jurisdiction and as a result of such proceeding was or is subject to a
     judgment, decree or final order enjoining future violations of, or
     prohibiting or mandating activities subject to, Federal or State
     securities laws or finding any violation with respect to such laws. 
     Each of the individuals listed above is a citizen of the United
     States.

  
<PAGE>

<PAGE>
     


                                                         
                                  EXHIBIT INDEX
                                  -------------
     Exhibit                                                       
     -------                                                       

     1.   Modification Agreement, dated as of December 12, 1996,
          among CAI, BANX, MMDS Holdings, Inc., MMDS Holdings,
          NYNEX MMDS Company and NYNEX MMDS.

     2.   Joint Press Release dated Decmeber 13, 1996.

     3.   Current Report on Form 8-K (incorporated by reference
          to the Form 8-K filed with the SEC by CAI on January 3, 1997).

     4.   Joint Filing Letter Agreement, dated as of March 29, 1995.



     NYFS10...:\86\65886\0021\1708\SCH1217T.33C


<PAGE>
     


                             MODIFICATION AGREEMENT

               MODIFICATION AGREEMENT dated as of December 12, 1996 among
     CAI WIRELESS SYSTEMS, INC., a Connecticut corporation ("CAI"), the
                                                             ---
     subsidiaries of CAI listed on the signature pages hereto
     (collectively with CAI, the "Company"), BANX PARTNERSHIP, a Delaware
                                  -------
     general partnership ("BANX"), MMDS HOLDINGS, INC., a Delaware
                           ----
     corporation ("MMDS Holdings"), MMDS HOLDINGS II, INC., a Delaware
                   -------------
     corporation ("MMDS Holdings II"), NYNEX MMDS COMPANY, a Delaware
                   ----------------
     corporation ("NYNEX MMDS"), and NYNEX MMDS HOLDING COMPANY, a Delaware
                   ----------
     corporation ("NYNEX MMDS Holding").
                   ------------------

                                    RECITALS

               1.   The Company and BANX are parties to a Securities
          Purchase Agreement dated as of March 28, 1995, as amended (the
          "Securities Purchase Agreement"; capitalized terms defined 
           -----------------------------
          therein and used but not defined herein being used as therein
          defined), pursuant to which CAI issued and sold and BANX
          purchased (i) CAI's Term Notes due 2005 (the "Notes") in an 
                                                        -----
          aggregate original principal amount of $30,000,000, (ii) 7,000
          shares of CAI's 14% Senior Preferred Stock, par value $10,000 per
          share (the "Senior Preferred Stock"), and (iii) warrants (the 
                      ----------------------
          "Warrants") to purchase CAI's Series C Convertible Preferred 
           --------
          Stock.  The Notes, the Senior Preferred Stock and the Warrants
          are referred to herein collectively as the "Purchased
                                                      ---------
          Securities".
          ----------

               2.   The Company, NYNEX MMDS and MMDS Holdings are parties
          to a Business Relationship Agreement dated as of March 28, 1995,
          as amended (the "BR Agreement"), pursuant to which the Company 
                           ------------
          has, among other things, granted to NYNEX MMDS and MMDS Holdings
          options, on a market by market basis, to cause the Company to
          provide wireless cable transmission services to NYNEX MMDS and
          MMDS Holdings using the Company's transmission systems in
          specified markets in their respective service areas.

               3.   The parties desire to modify their contractual
          arrangements under the Securities Purchase Agreement and the BR
          Agreement and with respect to the Purchased Securities, as set
          forth herein.

               Accordingly, the parties hereby agree as follows:

               Section 1.     Option to Purchase Securities.  BANX and its
                              -----------------------------
     partners, NYNEX MMDS Holding and MMDS Holdings II, hereby

<PAGE>

<PAGE>
     

     grant to CAI or its designee the right and option, exercisable for a
     period of twelve (12) months following the date of this Agreement, to
     purchase all (but not less than all) of the Purchased Securities,
     including all accrued and unpaid dividends thereon, for an aggregate
     purchase price equal to the Purchase Price specified below.  The
     option shall be exercised by written notice to BANX, NYNEX MMDS and
     MMDS Holdings II in accordance with the Securities Purchase Agreement,
     which notice shall identify any designee and shall provide information
     in reasonable detail with respect to the creditworthiness of any
     designee and of the expected source of funds for the purchase.  If the
     designee (which for purposes of this sentence shall include the
     ultimate parent or entity which controls the designee) is not required
     to file reports pursuant to the Securities Exchange Act of 1934, then
     CAI shall have thirty (30) days from the date of the notice to provide
     the financial information (including the expected source of funds)
     required under the immediately preceding sentence.  If the notice from
     CAI includes a request to keep the identity of the designee (if any)
     confidential, the sellers will not publicly disclose the designee's
     identity, until such time as the identity of the designee as the
     purchaser of the Purchased Securities is otherwise made public, except
     as may otherwise be required by any applicable law, rule, regulation,
     court order or requirement of a government entity, including without
     limitation, the rules or regulations of any securities exchange.  Upon
     such exercise, the purchase and sale of the Purchased Securities shall
     occur at the offices of NYNEX MMDS Holding in New York City on the
     date, not later than ninety (90) days following the date of the notice
     of exercise, as shall be specified by CAI in such notice of exercise,
     at which closing BANX, NYNEX MMDS Holding and MMDS Holdings II shall
     deliver the certificates or other instruments representing the
     Purchased Securities to CAI or its designee (without representation or
     warranty except as to title) against payment of the Purchase Price in
     immediately available funds, and CAI shall deliver such legal
     opinions, opinions of financial advisors and officers' certificates as
     may reasonably be requested by the sellers or as may be customary for
     transactions of such nature, provided that if CAI or its designee is
     unable to close within such 90-day period solely due to the document
     deliveries required pursuant to this sentence, then at the election of
     CAI in writing to sellers not less than 2 business days prior to the
     expiration of such 90-day period, the full Purchase Price may be
     deposited in an interest bearing account for a period of up to thirty
     (30) days in order to permit the purchaser to satisfy such delivery
     requirements and the closing shall be deemed timely if consummated
     within such 30-day period provided the sellers shall be paid all
     interest accrued on such funds during such period in

<PAGE>

<PAGE>
     

     addition to the Purchase Price.  The parties will use reasonable
     efforts to agree upon the form of such documents within forty five
     (45) days after the execution of this Agreement; provided, however,
                                                      --------  -------
     that the failure of the parties to so agree shall not relieve any
     party of its obligation to deliver the required documents in a form
     reasonably satisfactory to the receiving parties.  The Purchase Price
     for the Purchased Securities shall equal the amount specified below
     opposite the applicable number of days following the date of this
     Agreement on which the notice of exercise is delivered by CAI to BANX,
     NYNEX MMDS Holding and MMDS Holdings II:

          Notice of Option Exercise          Purchase Price
          -------------------------          --------------

          up to 120 days                     $121,000,000

          after 120 days up to 240 days      $100,000,000 plus payment in
                                             full of all accrued interest
                                             and dividends under the Notes
                                             and Senior Preferred Stock as
                                             of the date of notice plus
                                             $10,000,000.

          after 240 days up to 365 days      $100,000,000 plus payment in
                                             full of all accrued interest
                                             and dividends under the Notes
                                             and Senior Preferred Stock as
                                             of the date of notice plus
                                             $20,000,000.

     Notwithstanding anything to the contrary herein, (i) in the event CAI
     shall fail to consummate the purchase of the Purchased Securities in
     accordance with the terms of this Agreement and without limitation to
     any other remedies of BANX, NYNEX MMDS or MMDS Holdings occasioned by
     such failure, the option to purchase pursuant to this Section 1 shall
     terminate automatically and without further action of the parties, and
     (ii) in the event the option to purchase pursuant to this Section 1 is
     not exercised in accordance herewith on or before the 270th day
     following the date of this Agreement, BANX, NYNEX MMDS Holding and
     MMDS Holdings II shall have the right to sell the Purchased Securities
     free and clear of the option granted hereby and the rights of the
     Company pursuant hereto upon twenty (20) days' prior notice to CAI,
     provided that CAI or its designee does not exercise the option in
     accordance herewith within a period of ten (10) days following the
     date of such notice to CAI.  During the option period, CAI

<PAGE>

<PAGE>
     

     shall make commercially reasonable efforts to secure the funds
     required to exercise the option or to otherwise find a purchaser for
     the Purchased Securities.  If CAI engages in discussions or
     negotiations with entities which have an interest in investing in the
     Company, it shall offer such entities the option of acquiring the
     Purchased Securities.  CAI agrees that it shall take no action, (other
     than actions in the ordinary course of its business) the effect of
     which could reasonably expected to make the acquisition of the
     Purchased Securities less attractive to a prospective purchaser.  If
     CAI obtains funds sufficient to acquire the Purchased Securities, it
     shall use commercially reasonable efforts to obtain any consents or
     other authorizations required to permit it to exercise the option
     hereunder.

               Section 2.     Exercise and Conversion Prices.
                              ------------------------------

               (a) Effective upon the execution and delivery of this
     Agreement, (i) the Initial Tier I Conversion Price and the Initial
     Tier I Exercise Price for the Senior Preferred Stock and the Warrants,
     respectively, shall be reduced to an amount equal the product of the
     Preferred Conversion Ratio (as defined in the Purchased Securities)
     multiplied by $3.86, and (ii) the Initial Tier 2 Exercise Price, the
     Initial Tier 3 Exercise Price and the Initial Tier 4 Exercise Price
     shall be reduced by multiplying such amounts by a fraction, the
     numerator of which is equal to the Initial Tier I Exercise Price
     immediately after giving effect to the reduction pursuant to clause
     (i) of this Section 2(a) and the denominator of which is equal to the
     Initial Tier I Exercise Price immediately prior to giving effect to
     such reduction.

               (b) In the event CAI shall not have exercised its option to
     purchase the Purchased Securities on or prior to 180 days after the
     date of this Agreement, (i) the Initial Tier I Conversion Price and
     the Initial Tier I Exercise Price for the Senior Preferred Stock and
     the Warrants, respectively, in each case shall be further reduced by
     an amount equal to 15% of the Initial Tier 1 Exercise Price
     immediately prior to any and all such adjustments, and (ii) in each
     case the Initial Tier II Exercise Price, the Initial Tier III Exercise
     Price and the Initial Tier IV shall be reduced by multiplying such
     price by a fraction, the numerator of which is equal to the Initial
     Tier I Exercise Price immediately after giving effect to the reduction
     pursuant to clause (i) of this Section 2(b) and the denominator of
     which is equal to the Initial Tier I Exercise Price immediately prior
     to giving effect to such reduction.

               (c) Each reduction pursuant to this Section 2 shall be
     cumulative with and in addition to any other reductions or
<PAGE>

<PAGE>
     

     adjustments to the applicable prices pursuant hereto or under the
     other applicable documents governing the Purchased Securities and each
     adjustment pursuant hereto shall be affected prior to any adjustments
     pursuant to such other documents.

               (d) The reduction provided for in Section 2(b) above shall
     not apply in the event of an exercise of the conversion rights of the
     Notes or Senior Preferred Stock or an exercise of the Warrants by BANX
     or its affiliates.

               Section 3.     Suspension of BR Agreement.  Effective upon
                              --------------------------
     the execution and delivery of this Agreement, the right of NYNEX MMDS
     and MMDS Holdings to exercise the options, and the obligations of the
     Company to perform by the specified dates, under the BR Agreement
     shall be suspended and the running of all other time periods
     thereunder shall be tolled.  If CAI shall purchase all of the
     Purchased Securities pursuant to the exercise of its option in
     accordance with Section 1 of this Agreement, the BR Agreement and all
     rights and obligations of the parties thereunder shall terminate.  If
     CAI shall fail to provide notice of the exercise of its option to
     purchase the Purchased Securities pursuant to Section 1 hereof on or
     prior to the first anniversary of the date of this Agreement and
     consummate a purchase transaction pursuant to Section 1 hereof, the BR
     Agreement and the rights and obligations of the parties shall be
     reinstated automatically and without further action of the parties,
     and all time periods for performance or the exercise of any rights or
     obligations thereunder, including the right to exercise the options by
     NYNEX MMDS and MMDS Holdings thereunder, shall be extended by a period
     equal to the period of the suspension of the BR Agreement pursuant to
     this Section 3, provided that, following the end of the suspension
     period, the parties agree to negotiate in good faith to amend the BR
     Agreement; provided further however, that the parties are under no
     obligation to agree to any amendments, modifications or waivers of the
     BR Agreement other than with respect to the elimination of the
     existing "Fulfillment Dates" (as defined in the BR Agreement").  The
     suspension of the BR Agreement, and any reinstatement thereof, shall
     not effect a waiver of any rights, obligations or claims of the
     parties thereto for any period prior to such suspension or after such
     reinstatement and this Agreement shall not constitute a consent to any
     modification of such rights, obligations or claims except as expressly
     provided hereunder.

               Section 4.     CS Consent Rights; Conveyance of Stock.  (a)
                              --------------------------------------
     All rights of BANX and its affiliates to consent to the exercise by
     CAI of its right to approve or disapprove of the
<PAGE>

<PAGE>
     

     taking of any actions by CS Wireless Systems, Inc. pursuant to the
     terms of the Consent dated February 23, 1996 (the "CS Consent") among
     CAI, BANX and its affiliates shall be terminated effective upon the
     execution and delivery of this Agreement.  

               During the option period, BANX and its affiliates party
     hereto agree to grant CAI a proxy for the purposes of voting their
     respective shares of CS Wireless Systems, Inc. ("CS") common stock;
     provided, however, that with respect to votes regarding the following
     --------  -------
     matters, CAI must vote the shares of CS held by BANX and its
     affiliates as directed by such parties:

               any shareholder approval sought in connection with a public
     offering of CS equity securities in the event that CAI proposes to
     vote against such a transaction;

               any shareholder approval in connection with a merger,
     business combination, sale of all or substantially all of CS' assets
     or any similar transaction, other than a transaction in which the
     holders of CS common stock would become the holders of tradable
     securities in a publicly traded entity, unless CAI has notified BANX
     that it proposes to vote in favor of such transaction;

               any shareholder approval in connection with a transaction
     between CS and CAI and/or any of their respective affiliates;

               any shareholder approval in connection with a redemption or
     repurchase of CS' equity securities or the declaration of any
     dividends; and

               any transaction, other than a sale of CS equity securities
     for cash, that would dilute the interest of BANX and its affiliates in
     CS or grant any entity greater voting rights.

     CAI will inform BANX if it proposes to exercise the proxy granted
     hereunder.  If the proxy would be voted in connection with one or more
     of the items listed in this Section 4(b), CAI will describe the action
     to be approved and CAI's intention to exercise the proxy for or
     against such matter, and the notice containing the foregoing shall be
     delivered as soon as possible, but in no event less than ten (10)
     business days prior to the date of the vote.  Unless BANX notifies CAI
     prior to the actual vote that it objects to CAI's proposed vote, CAI
     shall exercise the proxy as indicated in the notice.

<PAGE>

<PAGE>
     

     In the event CAI exercises the proxy granted hereunder other than at
     the express direction of BANX, CAI shall defend, indemnify and hold
     harmless each Indemnitee (as hereinafter defined) from and against any
     and all Claims (as hereinafter defined) arising out of, in connection
     with or as a result of exercise of the proxy.

               (c) Upon the consummation of a purchase by CAI or its
     designee in accordance with the provisions of Section 1 hereof, BANX
     and its partners will transfer to CAI, for no additional
     consideration, the shares of CS common stock conveyed to them pursuant
     to the CS Consent.  CAI shall pay any and all taxes (other than income
     tax) or other costs and expenses payable to third parties as a result
     of such transfer.

               Section 5.     Modification of Covenants.  The covenants of
                              -------------------------
     CAI in the Securities Purchase Agreement and in the Purchased
     Securities shall be modified (i) to permit the Company to sell,
     transfer or otherwise dispose of assets having a fair market value not
     in excess of $2,000,000 in any one transaction or series of related
     transactions from time to time to the extent permitted under the terms
     of the Indenture governing CAI's 12-1/4% Senior Notes due 2002 as in
     effect on the date of this Agreement and (ii) to suspend during the
     term of the suspension of the BR Agreement pursuant to Section 3
     hereof the right of BANX and its affiliates to approve of the Business
     Plan of CAI and the following covenants in the Stage II Warrants (and
     the corresponding provisions of the Stage I Warrants, the Term Notes
     and the Senior Preferred Stock): Section 7.8 (other than the last
     sentence thereof), 7.10(b), 7.19(d),, clause (iii) of 7.24 and 7.25. 
     Actions taken by CAI during the one-year period which would otherwise
     have required consent under the suspended covenants shall not be
     deemed to be a breach of such covenants following the termination of
     such suspension; but only to the extent of actions completed or
     transactions consummated as of the end of the suspension period,
     provided, however, that CAI may continue to take actions, ministerial
     or administrative in nature, required of CAI subsequent to the one-
     year period in furtherance of the actions taken by CAI during the one-
     year period, which actions shall not be deemed to be a breach of such
     covenants following the termination of the suspension period.

               Section 6.     Removal of Equipment.  Until the expiration
                              --------------------
     of the options under the BR Agreement with respect to the Virginia
     Beach and Boston markets, the Company will maintain the transmission
     systems in Virginia Beach and Boston intact and will not, unless
     consented to in writing by NYNEX MMDS or MMDS Holdings, as applicable,
     sell, transfer or otherwise dispose of or remove from the site any of
     the fixed assets or equipment
<PAGE>

<PAGE>
     

     located at or utilized in the transmission systems in Virginia Beach
     or Boston, provided that CAI may remove and utilize for other purposes
     (i) booster transmitters and associated equipment in Boston, other
     than any equipment located at or used for the main transmitter and
     associated systems at One Financial in Boston and (ii) booster
     transmitters and associated equipment in Virginia Beach, other than
     equipment used at the Virginia Beach main transmitter.

               Section 7.     Cooperation.  The parties shall provide
                              -----------
     reasonable cooperation to each other in connection with facilitating
     the sale of the Purchased Securities; provided, however, that such
                                           --------  -------
     cooperation shall not require the parties to make any representations,
     warranties or statements or incur any obligations other than those set
     forth in Section 1.

               Section 8.     FCC Matters.  For a period of one year from
                              -----------
     the date hereof, each of BANX and its affiliates party hereto agrees
     that it shall not oppose any FCC filing or application by CAI solely
     for the purpose of: (i) transferring any of its MMDS, MDS or ITFS
     leases or licenses; or (ii) modifying its authority to use such
     spectrum for uses other than that permitted under existing law or
     regulations, provided, however, that BANX and its affiliates party
                  --------  -------
     hereto will not be restricted from opposing any application or filing
     described in clause (ii) where such application or filing, if granted,
     could reasonably be expected to have the effect of restricting the
     conduct of their business.  Nothing in this Agreement shall have the
     effect of limiting the ability of BANX and its affiliates to respond
     to any communication to the FCC which they determine makes false,
     misleading and/or negative reference (directly or indirectly) to BANX
     or any of its affiliates.

               Section 9.  Publicity.     The parties will make reasonable
                           ---------
     efforts to consult with each other prior to the issuance of a press
     release regarding this Agreement.  Following the dissemination of an
     initial press release, the parties' obligations with respect to the
     disclosure of the details of this Agreement shall be governed by the
     applicable provisions of the agreements which this Agreement modifies.

               Section 10.    No Waiver.  Failure by either party to insist
                              ---------
     on strict performance or observance of any provision of this Agreement
     or to exercise any right or remedy shall not be construed as a waiver
     of any right or remedy with respect to any existing or subsequent
     breach or default.  This Agreement shall not constitute a waiver,
     compromise or relinquishment of any

<PAGE>

<PAGE>
     

     claims relating to the BR Agreement or the documentation governing the
     Purchased Securities.

               Section 11.    Representations and Warranties.  Each party
                              ------------------------------
     hereto represents and warrants to the other party that (a) such party
     has all requisite legal power and authority to execute and deliver
     this Agreement and to perform its obligations hereunder, (b) the
     execution, delivery and performance hereof has been duly authorized by
     all requisite corporate action on the part of such party, including
     with respect to the Company by express Board of Directors
     authorization, and (c) this Agreement (i) has been duly executed and
     delivered by such party and (ii) subject to the due execution and
     delivery of this Agreement by the other party hereto, this Agreement
     constitutes a legal, valid and binding obligation of such party,
     enforceable against it in accordance with its terms, subject to
     applicable bankruptcy, insolvency, reorganization, moratorium and
     similar laws or other laws affecting creditors' rights generally and
     subject further to general principles of equity (regardless of whether
     such enforceability is considered in a proceeding in equity or at
     law).  Notwithstanding anything to the contrary herein, the
     effectiveness of Section 1 hereof shall be contingent on the approval
     of this Agreement to the extent required by the Boards of Directors of
     Bell Atlantic Corporation and NYNEX Corporation, which if required
     BANX and its affiliates agree to seek promptly following the date
     hereof.

               Section 12.    Effect on Agreements.  The provisions of this
                              --------------------
     Agreement shall be narrowly construed in accordance with the express
     provisions hereof and except as expressly amended or modified herein,
     the Stock Purchase Agreement, the Purchased Securities and the BR
     Agreement and each of the provisions thereof shall remain in full
     force and effect in accordance with their respective terms.

               Section 13.    Miscellaneous.  
                              -------------
               (a)  Entire Agreement.  This Agreement constitutes the
                    ----------------
     entire agreement between the parties with respect to the subject
     matter hereof and supersedes any and all previous agreements,
     representations and understandings between the parties hereto with
     respect to such matters whether oral or in writing.

               (b)  Governing Law.  This Agreement shall be governed by and
                    -------------
     construed in accordance with the law of the State of New York.

<PAGE>

<PAGE>
     

               (c)  Severability.  The invalidity or unenforceability of
                    ------------
     any provision of this Agreement shall not affect the validly or
     enforceability of any other provisions of this Agreement, each of
     which shall remain in full force and effect.

               (d)  No Third Party Beneficiaries.  This Agreement shall be
                    ----------------------------
     binding upon and inure to the benefit of the parties hereto and their
     respective successors and assigns.  Nothing in this Agreement shall
     create or be deemed to create any third party beneficiary rights in
     any person not party to this Agreement.  


               (e)  Amendments.  This Agreement may be amended,
                    ----------
     supplemented or modified, and any provision hereof may be waived, only
     pursuant to a written instrument making specific reference to this
     Agreement signed by each of the parties hereto.

               (f)  Counterparts.  This Agreement may be executed in any
                    ------------
     number of counterparts, each of which shall be deemed an original, but
     all of which together shall constitute one and the same instrument.

               Section 13.    Expenses and Indemnification.  Without
                              ----------------------------
     limitation to Section 7.1 and 7.2 of the Securities Purchase
     Agreement:

               (i)  each party will pay its own costs and expenses
     (including reasonable fees, charges and disbursements of counsel)
     incurred in connection with the preparation, negotiation and execution
     of this Agreement; and

               (ii) the Company agrees to indemnify BANX and its affiliates
     and their respective directors, officers, employees and agents (each
     such Person being an "Indemnitee") against, and to hold each
                           ----------
     Indemnitee harmless from, any and all losses, claims, damages,
     liabilities, penalties and related costs and expenses (collectively,
     "Claims"), including counsel fees, charges and disbursements, incurred
     by or asserted against any Indemnitee arising out of, in any way in
     connection with, or as a result of (i) the execution, delivery or
     performance of this Agreement or of any document contemplated hereby
     or the consummation of any of the transactions contemplated hereby,
     (ii) any exercise by any Indemnitee of its rights and remedies
     hereunder, or (iii) any claim litigation, investigation or proceeding
     relating to any of the foregoing, whether or not any Indemnitee is a
     party thereto; provided, however, that such indemnity shall not, as to
                    --------  -------
     any Indemnitee, apply to any such losses, claims, damages,
     liabilities, penalties or related costs

<PAGE>

<PAGE>
     

     and expenses or portion thereof arising exclusively from the material
     breach, gross negligence or wilful misconduct of such Indemnitee, or
     from any act or failure to act of an Indemnitee under any other
     agreement or legal obligation of such Indemnitee where the Indemnitee
     was under a legal obligation to act or abstain from acting, in any
     such case, as determined by final order of a court of competent
     jurisdiction.

               IN WITNESS WHEREOF, the parties hereto have executed this
     Agreement through their duly authorized representatives on the day and
     year first above written.  


                                   CAI WIRELESS SYSTEMS, INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   ROCHESTER CHOICE TELEVISION,
                                   INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   HAMPTON ROADS WIRELESS, INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   EASTERN NEW ENGLAND TV, INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   CONNECTICUT CHOICE TELEVISION, INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:

<PAGE>

<PAGE>
     


                                   COMMONWEALTH CHOICE 
                                     TELEVISION, INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   ATLANTIC MICROSYSTEMS, INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   HOUSATONIC WIRELESS, INC.
                                   SYSTEMS, INC., d/b/a
                                   CAPITAL CHOICE TELEVISION

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   NISAKAYUNA ASSOCIATES, INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   ONTEO ASSOCIATES, INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   NEW YORK CHOICE TELEVISION, INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   CAI TRANSACTIONS P, INC.

                                   By:/s/ John J. Prisco         
                                     ---------------------------
                                      Name: John J. Prisco
                                      Title:

<PAGE>

<PAGE>
     


                                   CAI TRANSACTIONS W, INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   CAI VA TRANSACTIONS, INC.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:


                                   CAI CT HOLDINGS CORP.

                                   By:/s/ John J. Prisco         
                                      ---------------------------
                                      Name: John J. Prisco
                                      Title:

                                   BANX PARTNERSHIP

                                   By:  MMDS Holdings Inc.

                                        By:/s/ Philip Marx       
                                           ----------------------
                                           Name:  Philip Marx
                                           Title: Assistant Secretary

                                   By:  NYNEX MMDS Company

                                        By:/s/ Steven Fadem      
                                           ----------------------
                                           Name:  Steven Fadem
                                           Title: Vice President


                                   MMDS HOLDINGS INC.

                                   By:/s/ Philip Marx            
                                      ---------------------------
                                      Name:  Philip Marx
                                      Title: Assistant Secretary
<PAGE>

<PAGE>
     

                                   MMDS HOLDINGS II INC.

                                   By:/s/ Philip Marx                 
                                      --------------------------------
                                      Name:  Philip Marx
                                      Title: Assistant Secretary


                                   NYNEX MMDS COMPANY

                                   By:/s/ Steven Fadem                
                                      --------------------------------
                                      Name:  Steven Fadem
                                      Title: Vice President

                                   NYNEX MMDS HOLDING COMPANY

                                   By:/s/ Steven Fadem                
                                      --------------------------------
                                      Name:  Steven Fadem
                                      Title: Vice President

     NYFS08...:\60\34460\0029\209\AGR1217Z.500


<PAGE>
     


                              December 13, 1996, Friday



               Joint News Release Bell Atlantic, NYNEX, CAI Wireless
     Systems Suspend Business Agreement For One Year;
     CAI Provided with Option to Repurchase Bell Atlantic, NYNEX Investment
     in CAI Securities; Changing Market Conditions, Full Service Network
     Buildouts Lead to Re-Evaluation Of Plans for Digital Wireless Video
     Strategy

               Bell Atlantic (NYSE: BEL), NYNEX (NYSE: NYN) and CAI
     Wireless Systems, Inc. (Nasdaq: CAWS) are suspending a 1995 business
     agreement for one year and providing CAI with the option to repurchase
     a $100 million investment in CAI securities made by Bell Atlantic and
     NYNEX

               Under a new agreement signed yesterday, the way has been
     cleared for CAI to develop a more flexible approach to the use of its
     MMDS spectrum, including the provision of video, voice and data
     services in Northeast and mid-Atlantic markets.

               Bell Atlantic and NYNEX said they were re-evaluating their
     decision to use CAI's MMDS (Multichannel Multipoint Distribution
     Service) transport systems as an early-to-market video strategy due to
     a number of factors, including changing market conditions for
     entertainment services, the technical availability of fiber-based Full
     Service Networks and CAI's desire to expand its use of spectrum beyond
     video transport.

               As a result, the companies have re-negotiated a 1995
     agreement to develop and deploy wireless video networks and have also
     suspended plans to jointly launch wireless video services in Hampton
     Roads, Va., and Boston, Mass., in 1997.

               Under the terms of the agreement announced today, CAI will
     be given an option for up to one year to purchase Bell Atlantic and
     NYNEX'S interest in the company.  The agreement also enables CAI to
     expand the markets in which it may seek FCC approval for mixed use of
     MMDS spectrum.

          Bell Atlantic and NYNEX added that they continue to view the
     marketplace for broadband services such as video and high speed data
     connectivity over the Full Service Network as an attractive long term
     growth strategy.  Therefore, they are still evaluating a variety of
     delivery systems for video and entertainment services.

<PAGE>

<PAGE>
     

               Bell Atlantic is currently providing video programming over
     its fiber network in Toms River, N.J., and recently announced
     deployment plans to deploy switched digital video in the Philadelphia
     market.

               NYNEX also has selected switched digital technology as part
     of the company's plan to deliver the next generation of network
     technology to its customers.  In October, NYNEX signed a multi-year
     agreement with General Instrument that includes one million lines of
     transport electronics to be deployed in metropolitan Boston and New
     York City areas, as well as parts of Long Island and Westchester
     County, N.Y.  The first installation of this new technology, initially
     for voice applications, will began in metropolitan Boston early next
     year.

               "CAI is anxious to test the versatility of its considerable
     MMDS spectrum in new endeavors that combine video, voice and data
     transmission," said Jared E. Abbruzzese, chairman and CEO of CAI.  "We
     have learned much from building digital wireless systems during this
     trial.  We appreciate that they have given us the opportunity to
     charter a different destiny for our company, and we hope to
     aggressively press the regulatory envelope for full flexible use of
     MMDS spectrum."

               CAI has been exploring mixed use of MMDS spectrum in markets
     not covered by the original agreement with Bell Atlantic and NYNEX,
     such as Rochester, N.Y., where the FCC has granted the company
     authority for a market trial with 500 users.  The company has also
     requested FCC approval for a two-way flexible-use MMDS trial in
     Hartford, Conn.

               Through CS Wireless Systems, Inc., CAI's majority-owned
     joint venture with Heartland Wireless Communications, Inc., the
     company plans in 1997 to roll out a high speed Internet access service
     combined with digital subscription television service in Dallas.

               Bell Atlantic Corporation is at the forefront of the new
     communications, entertainment and information industry.  In the mid-
     Atlantic region, the company is the premier provider of local
     telecommunications and advanced services.  Globally, it is one of the
     largest investors in the high-growth wireless communication
     marketplace.  Bell Atlantic also owns a substantial interest in
     Telecom Corporation of New Zealand and is actively developing high-
     growth national and international business opportunities in all phases
     of the industry.

<PAGE>

<PAGE>
     

               INTERNET USERS:  Bell Atlantic news releases, executive
     speeches, news media contacts and other useful information are
     available on Bell Atlantic's media relations World Wide Web site
     (http://www.ba.com), or by gopher (gopher://ba.com).  To receive news
     releases via e-mail send a message to lists bell-atl.com.

               NYNEX is a global communications and media corporation that
     provides a full range of services in the northeastern United States
     and high growth markets around the world, including the United
     Kingdom, Thailand, Gibraltar, Greece, Indonesia, the Philippines,
     Poland, Slovakia and the Czech Republic. The corporation is a leader
     in telecommunications, wireless communications, directory publishing
     and video and entertainment services.

               NYNEX is also managing sponsor of FLAG -- Fiberoptic Link
     Around the Globe -- the world's longest undersea fiber optic
     communications cable.  NYNEX news releases are now available on the
     Internet at http://www.nynex.com.  You can also receive fax copies of
     recent NYNEX news releases free of charge, 24 hours a day.  Call 1-
     800-331-1214, and follow the automated system instructions.

               CAI, based in Albany, N.Y., operates analog-based wireless
     systems in New York City, Rochester and Albany, Philadelphia,
     Washington, D.C., and Norfolk/Virginia Beach, Va., and has a portfolio
     of wireless cable channel rights in eight additional markets,
     including Long Island, Buffalo and Syracuse, N.Y., Providence, R.I.,
     Hartford, Conn., Boston, Baltimore and Pittsburgh.

               CAI is also conducting market trials of wireless Internet
     access service in its Rochester market and has been granted authority
     to test such service in New York City.  In addition, CAI owns
     approximately 52 per cent of CS Wireless Systems, Inc., which is
     jointly owned by Heartland Wireless Communications, Inc.  CS Wireless
     has, on a pro forma basis for announced transactions, approximately
     7.2 million line-of-sight (LOS) households and 77,550 subscribers in
     17 markets located primarily in the Midwest and the Southwest regions
     of the United States.

     SOURCE  Bell Atlantic Corporation

     CONTACT:  Brian R. Wood of Bell Atlantic Enterprises, 
     215-963-6204, or e-mail, brian.r.wood bell-atl.com, or Larry Plumb of
     Bell Atlantic Video Services, 703-708-4360, or 
<PAGE>

<PAGE>
     

     e-mail, lawrence.d.plumb bell-atl.com; or Maureen Flanagan, 212-395-
     3519, or e-mail, notes.mflanaga nynex.com, or Jack Hoey, 617-743-4760,
     or e-mail, notes.jhoey nynex.com, both of NYNEX, or James P. Ashman of
     CAI Wireless Systems, 
     5l8-462-2632.

<PAGE>

<PAGE>
     

                    December 13, 1996, Friday

               PHF004, "Joint News Release: Bell Atlantic, NYNEX, CAI
     Wireless Systems Suspend Business Agreement For One Year," moved
     earlier today, we are advised that the CONTACT phone numbers for the
     NYNEX contacts should read: "Maureen Flanagan, 212-395-0500, or e-
     mail, notes.mflanaga nynex.com, or Jack Hoey, 617-743-3677, or e-mail,
     notes.jhoeynynex.com, both of NYNEX;" rather than "Maureen Flanagan,
     212-395-3519, or e-mail, notes.mflanaga nynex.com, or Jack Hoey, 617-
     743-4760, or e-mail, notes.jhoey nynex.com, both of NYNEX;" as
     originally issued (correcting only their telephone numbers).


<PAGE>

<PAGE>
     


                    December 13, 1996, Friday


               PHF004 "Joint News Release: Bell Atlantic, NYNEX, CAI
     Wireless Systems Suspend Business Agreement For One Year," moved
     earlier today, was an incorrect version transmitted by PR Newswire.  

               The 7th graph, 2nd line should read "plans to deploy" rather
     than "deployment plans to deploy."  

               The 11th graph should be deleted entirely.

               The last paragraph, 1st sentence should be deleted.

               The last paragraph, 6th line should read "approximately 6.2
     million line-of-sight" rather than "7.2 million."


     NYFS10...:\86\65886\0021\1708\OUT1237D.510


<PAGE>
     


                          JOINT FILING LETTER AGREEMENT
                          -----------------------------

          Pursuant to Rule 13d-1(f)(1) promulgated by the Securities and
     Exchange Commission under the Securities Exchange Act of 1934, as
     amended, the undersigned hereby consent to the joint filing of a
     single Schedule 13D statement on their behalf and to the joint filing
     of any single amended Schedule 13D statements thereto.  The
     undersigned hereby further agree that this statement may be executed
     in any number of counterparts, each of which when so executed shall be
     deemed to be an original, but all of which counterparts shall together
     constitute but one and the same instrument.

               Signature                          Dated as of:
               ---------                          ------------

     NYNEX CORPORATION


       /s/ Darlene D. Kleiner       
     -------------------------------
     Name:   Darlene D. Kleiner
     Title:  Assistant Secretary                       March 29, 1995


     BELL ATLANTIC CORPORATION


       /s/ P. Alan Bulliner          
     --------------------------------
     Name:  P. Alan Bulliner
     Title: V.P.-Corp. Secy & Counsel                  March 29, 1995


     NYNEX MMDS HOLDING COMPANY


       /s/ Darlene D. Kleiner       
     -------------------------------
     Name:  Darlene D. Kleiner
     Title: Secretary                                  March 29, 1995


     MMDS HOLDINGS II, INC.

       /s/ Michelle A. Arrington    
     -------------------------------
     Name:  Michelle A. Arrington
     Title: Secretary                                  March 29, 1995


     BANX PARTNERSHIP

          By:  NYNEX MMDS Holding Company,
               as General Partner

               /s/ Darlene D. Kleiner                 
          -------------------------------
          Name:  Darlene D. Kleiner
          Title: Secretary                             March 29, 1995


     NYFS10...:\86\65886\0021\1708\LTR1227V.270



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