CELLULAR COMMUNICATIONS INTERNATIONAL INC
SC 13D, 1999-02-12
RADIOTELEPHONE COMMUNICATIONS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934

                   CELLULAR COMMUNICATIONS INTERNATIONAL, INC.
                                (Name of Issuer)

                    Common Shares, Par Value $0.01 Per Share
                         (Title of Class of Securities)

                                   510918 10 0
                      (CUSIP Number of Class of Securities)

      Dr. Kurt J. Kinzius              and             Marco De Benedetti
         Mannesmann AG                                   Olivetti S.p.A.
       Mannesmannufer 2                                Via Lorenteggio 257
   40213 Dusseldorf, Germany                           20152 Milan, Italy
  Telephone: 49-711-990-2200                        Telephone: 39-2-4836-6701

                                    Copy to :

                               Neil Novikoff, Esq.
                            Willkie Farr & Gallagher
                               787 Seventh Avenue
                            New York, New York 10019
                                 (212) 728-8000

           (Name, Address and Telephone Number of Person Authorized to
                       Receive Notices and Communications)

                                February 2, 1999
             (Date of Event which Requires Filing of this Schedule)

     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:  / /



================================================================================

<PAGE>


                                  SCHEDULE 13D

- ------------------------
CUSIP NO. 150918 10 0
- --------------------------------------------------------------------------------
1.   Names of Reporting Persons and S.S. or I.R.S. Identification Numbers of
     Above Persons (entities only): Kensington Acquisition Sub, Inc.

- --------------------------------------------------------------------------------
2.   Check the Appropriate Box if a Member of a Group:  (a)  [  ]  (b)  [  ]

- --------------------------------------------------------------------------------
3.   SEC Use Only

- --------------------------------------------------------------------------------
4.   Source of Funds:  AF

- --------------------------------------------------------------------------------
5.   Check Box if Disclosure of Legal Proceedings is Required Pursuant to 
     Item 2(e) or 2(f):  [  ]
- --------------------------------------------------------------------------------
6.   Citizenship or Place of Organization:  Delaware
- --------------------------------------------------------------------------------
                        7.   Sole Voting Power:  12,079,305

                        --------------------------------------------------------
   Number of Shares     8.   Shared Voting Power:  None
     Beneficially       
    Owned by Each       --------------------------------------------------------
   Reporting Person     9.   Sole Dispositive Power:  12,079,305

                        --------------------------------------------------------
                        10.  Shared Dispositive Power:  None

                        --------------------------------------------------------
                        11.  Aggregate Amount Beneficially Owned: 12,079,305

- --------------------------------------------------------------------------------
12.  Check if Amount in Row (11) Excludes Certain Shares:  [  ]

- --------------------------------------------------------------------------------
13.  Percent of Class Represented by Amount in Row (11):  67.9%

- --------------------------------------------------------------------------------
14.  Type of Reporting Person:  CO

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


                                       2

<PAGE>

                                  SCHEDULE 13D

- ------------------------
CUSIP NO. 150918 10 0
- --------------------------------------------------------------------------------
1.   Names of Reporting Persons and S.S. or I.R.S. Identification Numbers of 
     Above Persons (entities only): Olivetti S.p.A.

- --------------------------------------------------------------------------------
2.   Check the Appropriate Box if a Member of a Group:  (a)  [  ]  (b)  [  ]

- --------------------------------------------------------------------------------
3.   SEC Use Only

- --------------------------------------------------------------------------------
4.   Source of Funds:  WC

- --------------------------------------------------------------------------------
5.   Check Box if Disclosure of Legal Proceedings is Required Pursuant to
     Item 2(e) or 2(f):  [  ]

- --------------------------------------------------------------------------------
6.   Citizenship or Place of Organization:  Italy

- --------------------------------------------------------------------------------
                        7.   Sole Voting Power: None

                        --------------------------------------------------------
   Number of Shares     8.   Shared Voting Power:  12,079,305
     Beneficially       
    Owned by Each       --------------------------------------------------------
   Reporting Person     9.   Sole Dispositive Power:  None

                        --------------------------------------------------------
                        10.  Shared Dispositive Power:  12,079,305

                        --------------------------------------------------------
                        11.  Aggregate Amount Beneficially Owned: 12,079,305

- --------------------------------------------------------------------------------
12.  Check if Amount in Row (11) Excludes Certain Shares:  [  ]

- --------------------------------------------------------------------------------
13.  Percent of Class Represented by Amount in Row (11):  67.9%

- --------------------------------------------------------------------------------
14.  Type of Reporting Person:  CO

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


                                       3

<PAGE>

                                  SCHEDULE 13D


- ------------------------
CUSIP NO. 150918 10 0
- --------------------------------------------------------------------------------
1.   Names of Reporting Persons and S.S. or I.R.S. Identification Numbers of 
     Above Persons (entities only): Mannesmann AG

- --------------------------------------------------------------------------------
2.   Check the Appropriate Box if a Member of a Group:  (a)  [  ]  (b)  [  ]

- --------------------------------------------------------------------------------
3.   SEC Use Only

- --------------------------------------------------------------------------------
4.   Source of Funds:  WC

- --------------------------------------------------------------------------------
5.   Check Box if Disclosure of Legal Proceedings is Required Pursuant to
     Item 2(e) or 2(f):  [  ]

- --------------------------------------------------------------------------------
6.   Citizenship or Place of Organization:  Germany

- --------------------------------------------------------------------------------
                        7.   Sole Voting Power:  None

                        --------------------------------------------------------
   Number of Shares     8.   Shared Voting Power:  12,079,305
     Beneficially       
    Owned by Each       --------------------------------------------------------
   Reporting Person     9.   Sole Dispositive Power:  None

                        --------------------------------------------------------
                        10.  Shared Dispositive Power:  12,079,305

                        --------------------------------------------------------
                        11.  Aggregate Amount Beneficially Owned: 12,079,305

- --------------------------------------------------------------------------------
12.  Check if Amount in Row (11) Excludes Certain Shares:  [  ]

- --------------------------------------------------------------------------------
13.  Percent of Class Represented by Amount in Row (11):  67.9%

- --------------------------------------------------------------------------------
14.  Type of Reporting Person:  CO

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


                                       4

<PAGE>

ITEM 1.   SECURITY AND ISSUER.

     This statement on Schedule 13D relates to the shares of common stock, par
value $0.01 per share (the "Common Stock"), of Cellular Communications
International, Inc., a Delaware corporation (the "Company"), including the
associated preferred stock purchase rights (the "Rights" and, together with the
Common Stock, "Shares") issued pursuant to the Rights Agreement, dated as of
December 19, 1990, by and between the Company and Continental Stock Transfer and
Trust Company, as Rights Agent. The address of the Company's principal executive
offices is 110 East 59th Street, New York, New York 10022.

ITEM 2.   IDENTITY AND BACKGROUND.

     (a) - (f) Kensington Acquisition Sub, Inc. ("Purchaser") is a newly formed
Delaware corporation organized solely to effect the Offer (as defined below) and
the Merger (as defined below). Purchaser has not carried on any significant
activities other than in connection with the Offer and the Merger. Until
immediately prior to the time Purchaser purchased Shares pursuant to the Offer,
it did not have any significant assets or liabilities or engage in any
significant activities other than those incident to its formation and
capitalization and the transactions contemplated by the Offer and the Merger.

     Olivetti S.p.A., a limited liability company organized under the laws of
Italy ("Olivetti"), owns 50% of the outstanding shares of capital stock of
Purchaser. Olivetti is a leading international player operating through
subsidiaries and affiliates in the telecommunications and information technology
sectors. In telecommunications, Olivetti operates in both wireless and wireline
markets through Omnitel-Pronto Italia S.p.A. ("Omnitel") and the fixed line
operator Infostrada S.p.A., respectively. In the information technology sector,
Olivetti wholly owns Olivetti Lexikon, which specializes in information
technology products for the office and consumer markets. It also has an 18.5%
ownership interest in Wang Global, a United States publicly traded company.

     Mannesmann AG, a limited liability company organized under the laws of
Germany ("Mannesmann"), owns 50% of the outstanding shares of capital stock of
Purchaser. Mannesmann operates in four sectors: Telecommunications, Engineering,
Automotive and Tubes and Trading and generated sales of around DM 39 billion in
1997. The group is one of the leading alternative telecommunication operators in
the recently liberalized European market.

     The address for Purchaser's principal offices are c/o Olivetti S.p.A., Via
Jervis 77, 10015 Ivrea, Turin, Italy and c/o Mannesmann AG, Mannesmannufer 2,
40213 Dusseldorf, Germany. The telephone numbers of Purchaser at such locations
are 39 0125 5200 and 49 211 820 2400, respectively. The principal offices of
Olivetti are located at Via Jervis 77, 10015 Ivrea, Turin, Italy. The telephone
number of Olivetti at such location is 39 0125 5200. The principal offices of
Mannesmann are located at Mannesmannufer 2, 40213 Dusseldorf, Germany. The
telephone number of Mannesmann at such location is 49 711 990 2200.

     During the last five years, none of Purchaser, Olivetti or Mannesmann nor,
to the best knowledge of Purchaser, Olivetti and Mannesmann, any of the persons
or entities on listed on 


                                       5

<PAGE>

Schedule I annexed hereto: (i) has been convicted in a criminal proceeding
(excluding traffic violations or similar misdemeanors) or (ii) was a party to a
civil proceeding of a judicial or administrative body of competent jurisdiction
as a result of which any such person was or is subject to a judgment, decree or
final order enjoining future violations of, or prohibiting activities subject
to, federal or state securities laws or finding any violation of such laws.

     For information relating to the business address, present principal
occupation or employment, and citizenship of the directors and executive
officers of Purchaser, Olivetti and Mannesmann, see Schedule I annexed hereto
and incorporated by reference herein.

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

     Purchaser accepted for payment 12,079,305 Shares validly tendered and not
withdrawn pursuant to the Offer for an aggregate amount equal to $966,344,400.
Purchaser obtained the funds required to consummate the Offer, including the
fees and expenses of the Offer, through capital contributions from Olivetti and
Mannesmann. Olivetti and Mannesmann provided such funds from working capital.

ITEM 4.  PURPOSE OF TRANSACTION.

     (a) - (g), (j) Purchaser and the Company are parties to an Agreement and
Plan of Merger dated as of December 11, 1998 (the "Merger Agreement"). Pursuant
to the Merger Agreement, Purchaser commenced on December 17, 1998 a tender offer
(the "Offer") for all of the outstanding shares of Common Stock at a price of
$80 per share, net to the seller in cash, without interest. The Offer expired at
12:00 midnight, New York City time, on Monday, February 1, 1999. Following
expiration of the Offer, Purchaser accepted for payment 12,079,305 Shares
(representing approximately 55.4% of the Shares on a fully diluted basis or
approximately 67.9% of the outstanding Shares) validly tendered and not
withdrawn pursuant to the Offer. In accordance with the Merger Agreement, three
of the Company's five directors resigned subsequent to consummation of the Offer
and were replaced with four persons designated by Purchaser.

     Pursuant to the Merger Agreement, a meeting of the Company's stockholders
will be held as promptly as practicable for the purpose of approving the merger
(the "Merger") of Purchaser with and into the Company. In connection with the
Merger, the Company will become the wholly-owned subsidiary of Olivetti and
Mannesmann and each issued and outstanding Share (other than Shares owned by
Purchaser, held in the treasury of the Company or with respect to which
dissenter's rights have been demanded and perfected pursuant to applicable
Delaware law) shall be converted into the right to receive $80 in cash. Under
Delaware law, the affirmative vote of a majority of the outstanding Shares
entitled to vote, including Shares owned by Purchaser, will be required to
approve the Merger. Because Purchaser owns sufficient Shares to approve and
adopt the Merger Agreement without the vote of any other stockholder of the
Company, the approval and adoption of the Merger Agreement is assured.

     The purpose of the Offer and the Merger is to enable Olivetti and
Mannesmann, through Purchaser, to acquire control of the Company's board of
directors and the entire equity interest in 


                                       6

<PAGE>

the Company. The Offer was commenced and consummated to increase the likelihood
that the Merger would be completed promptly. Purchaser or an affiliate of
Purchaser may seek to acquire additional Shares through open market purchases,
privately negotiated transactions, a tender offer or exchange offer or
otherwise, upon such terms and at such prices as it shall determine, which may
be more or less than the price paid pursuant to the Offer.

     Except as disclosed in this Statement on Schedule 13D, and except for the
Merger and the election of Purchaser's designees to fill a majority of the seats
on the Company's board of directors, Purchaser has no present plans or proposals
that would result in an extraordinary corporate transaction, such as a merger,
reorganization, liquidation, relocation of operations, or sale or transfer of a
material amount of assets, involving the Company or any of its subsidiaries, or
any material changes in the Company's capitalization, corporate structure,
business or composition of its management or the Company's board of directors.

     (h) - (i) Upon consummation of the Merger, the Shares will no longer meet
the requirements of the Nasdaq Stock Market, Inc. for continued designation for
the Nasdaq National Market or the Nasdaq SmallCap Market. Upon consummation of
the Merger, Purchaser will terminate registration of the Shares under the
Securities Exchange Act of 1934, as amended (the "Exchange Act").

ITEM 5.   INTEREST IN SECURITIES OF THE ISSUER.

     (a) - (e) Purchaser is the direct beneficial owner, and Olivetti and
Mannesmann are the indirect beneficial owners, of 12,079,305 Shares
(representing approximately 55.4% of the Shares on a fully diluted basis or
approximately 67.9% of the outstanding Shares), which number includes 453,585
Shares that are required to be delivered in accordance with guaranteed delivery
procedures. All purchased Shares were acquired pursuant to the Offer as
described in Item 4. Olivetti and Mannesmann share power to vote or dispose or
direct the vote or disposition of such Shares and Kensington has the sole power
to vote or dispose of such Shares.

     CIR S.p.A.("CIR") beneficially owns $3,000,000 aggregate principal amount
of 6% Convertible Subordinated Notes due 2005 (the "Convertible Notes") issued
by the Company. CIR is a majority owned subsidiary of Compagnia Finanziaria De
Benedetti S.p.A. ("COFIDE"). Mr. Marco De Benedetti, a director of the Company,
Co-President and Co-Secretary of Purchaser and an executive officer responsible
for telecom strategy at Olivetti, is a member of the Board of Directors of
COFIDE. The Convertible Notes owned by CIR are convertible into 75,100 Shares,
which represent approximately .42% of the outstanding Shares, assuming
conversion of all the Convertible Notes beneficially owned by CIR.

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

     Reference is hereby made to the information provided under Item 4 of this
statement, which Item contains the information relating to the Merger Agreement
called for by this Item 6.


                                       7

<PAGE>

     As a condition and inducement to Purchaser's entering into the Merger
Agreement, concurrently with the execution and delivery of the Merger Agreement,
Purchaser and the Company entered into an Option Agreement, dated as of December
11, 1998 (the "Option Agreement"), pursuant to which, among another things, the
Company granted Purchaser an irrevocable option to purchase up to 4,338,133
newly issued Shares (the "Company Option") under certain specified circumstances
at a purchase price per Share of $80.00 (the "Exercise Price"), provided,
however, that in no event shall the number of Shares for which the Company
Option is exercisable exceed 19.9% of the Company's issued and outstanding
shares of Common Stock. Notwithstanding any other provision of the Option
Agreement, in no event shall Purchaser's total profit exceed $14 million and, if
it otherwise would exceed such amount, Purchaser, at its sole election, shall
either (a) reduce the number of Shares subject to the Company Option, (b)
deliver to the Company for cancellation Shares previously purchased by
Purchaser, (c) pay cash to the Company, or (d) any combination thereof, so that
Purchaser's actually realized total profit shall not exceed $14 million after
taking into account the foregoing actions.

     As a condition and inducement to Purchaser entering into the Merger
Agreement, concurrently with the execution and delivery of the Merger Agreement,
Purchaser entered into a Stockholders Agreement, dated as of December 11, 1998
(the "Stockholders Agreement"), with the Company and certain stockholders. The
stockholders subject to the Stockholders Agreement have agreed that, at any
meeting of the Company's stockholders, they will vote, among other things, in
favor of the Merger, the execution and delivery by the Company of the Merger
Agreement and the approval and adoption of the Merger and the terms thereof and
each of the other actions contemplated by the Merger Agreement.

ITEM 7.   MATERIAL TO BE FILED AS EXHIBITS.

     (a) Joint Filing Agreement Pursuant to Rule 13d-1(k)(1), dated February 12,
1999, by and among Purchaser, Olivetti and Mannesmann.

     (b) Agreement and Plan of Merger, dated as of December 11, 1998, by and
between Purchaser and the Company.

     (c) Stockholders Agreement, dated as of December 11, 1998, by and among
Purchaser, the Company and certain stockholders of the Company.

     (d) Option Agreement, dated as of December 11, 1998, by and between
Purchaser and the Company.


                                       8

<PAGE>

                                    SIGNATURE

     After due inquiry and to the best of their knowledge and belief, the
undersigned certify that the information set forth in this statement is true,
complete and correct.

Dated: February 12, 1999


                                       KENSINGTON ACQUISITION SUB, INC.



                                        By:        /s/ Marco De Benedetti
                                            ------------------------------------
                                            Name:  Marco De Benedetti
                                            Title: Co-President and Co-Secretary



                                        By:        /s/ Dr. Kurt J. Kinzius   
                                            ------------------------------------
                                            Name:  Dr. Kurt J. Kinzius
                                            Title: Co-President and Co-Secretary


                                       OLIVETTI S.p.A.



                                        By:        /s/ Roberto Colaninno     
                                            ------------------------------------
                                            Name:  Roberto Colaninno
                                            Title: Chief Executive Officer


                                       MANNESMANN AG



                                        By:        /s/ Dr. Goetz Mueller     
                                            ------------------------------------
                                            Name:  Dr. Goetz Mueller
                                            Title: Executive Vice-President



                                        By:        /s/  Dr. Joachim Peters   
                                            ------------------------------------
                                            Name:  Dr. Joachim Peters
                                            Title: Counsel


                                       9

<PAGE>

                                INDEX TO EXHIBITS

<TABLE>
<CAPTION>

                                                                               SEQUENTIAL
EXHIBIT NO.                        DESCRIPTION                                  PAGE NO.
- -----------  ----------------------------------------------------------------  ----------
<S>         <C>                                                                <C>
99.1         Joint Filing Agreement Pursuant to Rule 13d-1(k)(1), dated 
             February 12, 1999 by and among Purchaser, Olivetti and
             Mannesmann.

99.2         Agreement and Plan of Merger, dated as of December 11, 1998,  by
             and between Purchaser and the Company.

99.3         Stockholders Agreement, dated as of December 11, 1998, by and 
             among Purchaser, the Company and certain stockholders of the 
             Company.

99.4         Option Agreement, dated as of December 11, 1998, by and between
             Purchaser and the Company.

</TABLE>


                                       10

<PAGE>

                                   SCHEDULE I

                 INFORMATION CONCERNING DIRECTORS AND EXECUTIVE
                 OFFICERS OF PURCHASER, OLIVETTI AND MANNESMANN

     1.   The following table sets forth the name and present principal
occupation or employment, business address and citizenship of each director and
executive officer of Purchaser. Unless otherwise indicated, each occupation set
forth opposite an individual's name refers to positions held with Purchaser.

<TABLE>
<CAPTION>

         NAME                     PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
- -----------------------  ----------------------------------------------------------------
<S>                     <C>
Marco De Benedetti       Mr. De Benedetti is a member of the Board of Directors, Co-
                         President and Co-Secretary. For additional information
                         concerning Mr. De Benedetti, see paragraph 2, below.

Dr. Kurt J. Kinzius      Dr. Kinzius is a member of the Board of Directors, Co President
                         and Co-Secretary. He has been a member of the Board of Directors
                         of Mannesmann Eurokom GmbH since October 1997. Mr. Kinzius' 
                         business address is c/o Mannesmann AG, Mannesmannufer 2, 
                         D40213, Dusseldorf, and he is a German citizen.

</TABLE>

     2.   The following table sets forth the name and present principal
occupation or employment of each director and executive officer of Olivetti.
Unless otherwise indicated, each such person is a citizen of Italy and the
business address of each such person is c/o Olivetti S.p.A., Via Jervis 77,
10015 Ivrea, Turin, Italy. Unless otherwise indicated, each occupation set forth
opposite an individual's name refers to employment with Olivetti.

<TABLE>
<CAPTION>

          NAME                             PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
- -------------------------     ---------------------------------------------------------------------
<S>                          <C>
Antonio Tesone                Mr. Tesone has been Chairman since September 1996 and a 
                              member of the Board of Directors since May 1996. He has his own 
                              legal practice located in Milan, Italy.
                           
Roberto Colaninno             Mr. Colaninno has been Chief Executive Officer since September 
                              1996. He has been Vice Chairman of Omnitel since April 1997, 
                              and Chairman of OliMan since December 1997. He has also been 
                              Executive Vice President of Sogefl S.p.A. since November 1996 
                              and a Director and member of the Chairman's Committee of Banca 
                              Agricola Mantovana since October 1986.
                            
Peter A. Cohen                Mr. Cohen has been a member of the Board of Directors since May 
                              1994. He is currently the managing member of Ramius Capital 
                              Group, L.L.C., an investment advisory and investment banking 


</TABLE>

<PAGE>

<TABLE>
<CAPTION>

          NAME                             PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
- -------------------------     ---------------------------------------------------------------------
<S>                          <C>

                              firm in New York. He is Vice Chairman and a Director of GRC 
                              International Inc., a Director of Presidential Life Insurance
                              Company and a Trustee of Mount Sinai/New York University 
                              Hospital. He is Vice Chairman of Republic New York
                              Corporation and Chairman and Chief Executive Officer of 
                              Republic New York Securities Corporation. Mr. Cohen is a citizen 
                              of the United States.

Dr. Klaus Esser               Dr. Esser has been a member of the Board of Directors since
                              February 1998. Dr. Esser is a German citizen. For additional 
                              information regarding Dr. Esser, see paragraph 3, below.

Maria Luisa Galardi Lizier    Ms. Lizier has been a member of the Board of Directors since May
                              1964.

Franco Girard                 Mr. Girard has been a member of the Board of Directors since June 
                              1990. He has been Director General of C.I.R. S.p.A. since 1986.
                              He is also a member of the Board of Directors of Sasib S.p.A., 
                              Rejna, S.p.A. and Isefi S.p.A.

Bruno Lamborghini             Mr. Lamborghini has been a member of the Board of Directors 
                              since October 1996 and Chairman of Olivetti Lexikon S.p.A. since 
                              April 1997. He has been President of Eurobit (European 
                              Federation of IT Manufacturers) since March 1990, Chairman of 
                              EITO (European Information Technology Observatory) since 1992
                              and President of the Information Technology Agreement Group of 
                              the Transatlantic Business Dialogue since 1994.

Gordon M. W. Owen             Mr. Owen has been a member of the Board of Directors and a 
                              member of the Audit Committee since October 1996. He has held 
                              various positions at Cable & Wireless PLC for more than 35 years. 
                              Mr. Owen has been Chairman of Energis since 1992, Acorn 
                              Computers Ltd. since 1995 and Yeoman Marine Ltd. since 1995.
                              Mr. Owen has been a non-executive director with NXT Plc since 
                              1992. Mr. Owen is a British citizen.

Luca Paravicini Crespi        Mr. Crespi has been a member of the Board of Directors since June 
                              1990. He has been a Director of C.I.R. S.p.A. since 1985 and Il 
                              Gallione S.p.A. since 1980. He is also Coordinator of Private 
                              Banking at Euromobilare Bank.

Alberto Pirelli               Mr. Pirelli has been a member of the Board of Directors since June 
                              1992. He has been a Director of Pirelli S.p.A. since 1985 and 
                              Deputy Chairman of Pirelli S.p.A. since 1991. He has been a 


</TABLE>


                                       2

<PAGE>

<TABLE>
<CAPTION>

          NAME                             PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
- -------------------------     ---------------------------------------------------------------------
<S>                          <C>

                              General Partner of Pirelli & C. since 1986, a Director of Societe 
                              Internationale Pirelli S.A. since 1987 and a Director and Vice 
                              President of Pirelli Cavi S.p.A. since 1992.

Peter Reimpell                Mr. Reimpell has been a member of the Board of Directors and a 
                              member of the Audit Committee since June 1991. He is Chairman 
                              of the Board of Bayerische Vereinsbank International, 
                              Luxembourg, Bayerische Vereinbank France, Paris, BV Capital 
                              Inc., BV Capital Markets (Asia) Ltd., Tokyo, Banque 
                              Internationale de Credit et de Gestion, Monaco, Simonbank AG, 
                              Eurosynergies S.A., TA Triumph-Adler AG, Koenig & Bauer AG 
                              and KBA Planeta AG. He has been Deputy Chairman of 
                              Privatbank AG. He is a member of the Board of Bank fur
                              Oberosterreich und Salzburg, Bank fur Tirol und Vorarlberg, GT 
                              Investment Fund and WAW Vereinigte Aluminum-Werke AG. He 
                              is a member of the International Institute of Banking Studies. 
                              Mr. Reimpell is a German citizen.

Piera Rosiello                Ms. Rosiello has been a member of the Board of Directors since 
                              May 1996 and Secretary since 1992. She has held various 
                              positions in the Legal Office, Legal Affairs Division and 
                              International Relations Division since 1954. She also has been a 
                              Director of Tecnost S.p.A. since 1987.

Dario Trevisan                Mr. Trevisan has been a member of the Board of Directors and a 
                              member of the Audit Committee since October 1996. He practices 
                              law at Calesella, Trevisan & Associati. He is a member of the 
                              International Corporate Governance Network and the Eurolegal 
                              Lawyers Association. He is a lecturer for the MF Conference
                              introductory course "Regulations on Financial Markets."

Gerard Worms                  Mr. Worms has been a member of the Board of Directors and a 
                              member of the Audit Committee since October 1996 and 
                              December 1997, respectively. He has been Chairman of Banque 
                              Rothschild & Cie since 1995. He has been a Director of Credit
                              Local de France since 1996, Paris Orleans since 1996 and Societe
                              Generale de Belgique since 1988. Mr. Worms is a French citizen.

Emilio Gnutti                 Mr. Gnutti was appointed to the Board of Directors on December 
                              15, 1998. He is Deputy Chairman and Chief Executive Officer of 
                              the Fingruppo and Hopa financing companies, Societa Europea 
                              Componenti Elettrici, Markfactor and Colmark and Chief 
                              Executive Officer of Molveno Oem and Bresciauno. He is

</TABLE>


                                       3

<PAGE>

<TABLE>
<CAPTION>

          NAME                             PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
- -------------------------     ---------------------------------------------------------------------
<S>                          <C>

                              Chairman and Chief Executive Officer of G.P. Line, F.Leasing, 
                              G.P. Finanziaria, Progettazioni Finanziarie, Immobiliare Delfo and 
                              Chairman of GIEM, SIT Prealpi, Bitech, S.F., Emozioni d'Oro and 
                              SIBER. He is also Manager of SIBER Sardegna and G.P.P. 
                              International, Director of Banca Steinhauslin of Florence, and a 
                              regular auditor of Thassos Insurance Brokers, Siber BV and RBM.

Luciano La Noce               Mr. La Noce has been Corporate Finance Director since 1995.

Corrado Ariaudo               Mr. Ariaudo has been Chief Financial Officer of Olivetti Group 
                              since October 1995 and has been in charge of the Group Auditing 
                              Department of Olivetti Group since 1993. He has been a member 
                              of the Board of Directors of Omnitel since July 1998, Tecnost 
                              S.p.A. since September 1998 and Olivetti Lexikon S.p.A. since 
                              April 1998. He has been President of the Board of Directors of 
                              Olivetti Ricera S.p.c.A. since March 1998 and Syntax Factory 
                              Administration S.p.c.A. since June 1998.

Marco De Benedetti            Mr. De Benedetti has been Managing Director of OliMan since 
                              December 1997 and Chairman of Infostrada S.p.A. since October 
                              1996. He has been Managing Director of Olivetti Telemedia S.p.A. 
                              since September 1994.

Daniele Signorini             Mr. Signorini has been Chief Executive Officer of Olivetti Lexicon 
                              S.p.A. since April 1997. He has held various positions, most
                              recently Vice President for Group Sales in Europe, at Whirlpool 
                              since 1990.


</TABLE>

     3.   The following table sets forth the name and present principal
occupation or employment of each director and executive officer of Mannesmann.
Unless otherwise indicated, each such person is a citizen of Germany and the
business address of each such person is c/o Mannesmann AG, Mannesmannufer 2,
D-40213 Dusseldorf, Germany. Unless otherwise indicated, each occupation set
forth opposite an individual's name refers to employment with Mannesmann. Unless
otherwise indicated, each such person has held his or her present occupation as
set forth below, or has been an executive officer or director at Mannesmann, for
the past five years. 

<TABLE>
<CAPTION>

          NAME                             PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
- -------------------------     ---------------------------------------------------------------------
<S>                          <C>

Dr. Joachim Funk              Dr. Funk is Chairman of the Board of Directors.

</TABLE>


                                       4

<PAGE>

<TABLE>
<CAPTION>

          NAME                             PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
- -------------------------     ---------------------------------------------------------------------
<S>                          <C>

Dr. Klaus Esser               Dr. Esser is Vice Chairman of the Board of Directors in charge of 
                              finances. He has been Head of the Tax Department of 
                              Mannesmann since 1983 and a Member of the Executive Board of 
                              Mannesmann since 1994. For additional information regarding Dr. 
                              Esser, see paragraph 2, above.

Dr. Wolfgang Peter            Dr. Peter is a member of the Board of Directors in charge of 
                              technology.

Sigmar Sattler                Mr. Sattler has been a member of the Board of Directors in charge 
                              of personnel since April 1997.

Peter Prinz Wittgenstein      Prinz Wittgenstein is a member of the Board of Directors in charge 
                              of sales.

</TABLE>


                                       5


<PAGE>

                                                                    EXHIBIT 99.1

                             JOINT FILING AGREEMENT
                          PURSUANT TO RULE 13d-1(k)(1)

     The undersigned acknowledge and agree that the foregoing Statement on
Schedule 13D is filed on behalf of each of the undersigned and that all
subsequent amendments to the Statement on Schedule 13D shall be filed on behalf
of each of the undersigned without the necessity of filing additional joint
filing agreements. The undersigned acknowledge that each shall be responsible
for the timely filing of such amendments, and for the completeness and accuracy
of the information concerning it contained therein, but shall not be responsible
for the completeness and accuracy concerning the others, except to the extent
that it knows or has reason to believe that such information is inaccurate. This
agreement may be executed in any number of counterparts and all of such
counterparts taken together shall constitute on and the same instrument.

Dated:  February 12, 1999

                                     KENSINGTON ACQUISITION SUB, INC.


                                      By:        /s/ Marco De Benedetti
                                          --------------------------------------
                                          Name:  Marco De Benedetti
                                          Title: Co-President and Co-Secretary


                                      By:        /s/ Dr. Kurt J. Kinzius
                                          --------------------------------------
                                          Name:  Dr. Kurt J. Kinzius
                                          Title: Co-President and Co-Secretary


                                     OLIVETTI S.p.A.


                                      By:        /s/ Roberto Colaninno     
                                          --------------------------------------
                                          Name:  Roberto Colaninno
                                          Title: Chief Executive Officer


                                     MANNESMANN AG


                                      By:        /s/ Dr. Goetz Mueller
                                          --------------------------------------
                                          Name:  Dr. Goetz Mueller
                                          Title: Executive Vice-President


                                      By:        /s/  Dr. Joachim Peters
                                          --------------------------------------
                                          Name:  Dr. Joachim Peters
                                          Title: Counsel


<PAGE>

                                                                    Exhibit 99.2


                   CELLULAR COMMUNICATIONS INTERNATIONAL, INC.

                                       and

                        KENSINGTON ACQUISITION SUB, INC.






                          AGREEMENT AND PLAN OF MERGER



                          Dated as of December 11, 1998



<PAGE>


                                TABLE OF CONTENTS

<TABLE>
<CAPTION>

                                                                                                               PAGE

                           ARTICLE I. THE TENDER OFFER
<S>     <C>                                                                                                      <C>
SECTION 1.1.   The Offer .........................................................................................2
SECTION 1.2.   Company Action.....................................................................................4
SECTION 1.3.   Directors .........................................................................................6


                             ARTICLE II. THE MERGER

SECTION 2.1.   The Merger ........................................................................................8
SECTION 2.2.   Effective Time.....................................................................................8
SECTION 2.3.   Closing ...........................................................................................8
SECTION 2.4.   Effect of the Merger...............................................................................8
SECTION 2.5.   Subsequent Actions.................................................................................8
SECTION 2.6.   Certificate of Incorporation; By-Laws; Directors and Officers......................................9
SECTION 2.7.   Stockholders' Meeting..............................................................................9
SECTION 2.8.   Merger Without Meeting of Stockholders............................................................10
SECTION 2.9.   Conversion of Securities..........................................................................10
SECTION 2.10.  Dissenting Shares.................................................................................11
SECTION 2.11.  Surrender of Shares; Stock Transfer Books.........................................................12
SECTION 2.12.  Stock Plans ......................................................................................13


                           ARTICLE III. REPRESENTATIONS AND WARRANTIES OF THE PURCHASER

SECTION 3.1.   Corporate Organization............................................................................14
SECTION 3.2.   Authority Relative to this Agreement..............................................................15
SECTION 3.3.   No Conflict; Required Filings and Consents........................................................15
SECTION 3.4.   Financing Arrangements............................................................................16
SECTION 3.5.   No Prior Activities...............................................................................16
SECTION 3.6.   Brokers ..........................................................................................16
SECTION 3.7.   Proxy Statement...................................................................................16


                             ARTICLE IV. REPRESENTATIONS AND WARRANTIES OF THE COMPANY

SECTION 4.1.   Organization and Qualification; Subsidiaries......................................................17
SECTION 4.2.   Capitalization....................................................................................17
SECTION 4.3.   Authority Relative to this Agreement; Company Action..............................................18
SECTION 4.4.   No Conflict; Required Filings and Consents........................................................19
SECTION 4.5.   SEC Filings; Financial Statements.................................................................20
SECTION 4.6.   Undisclosed Liabilities...........................................................................21
SECTION 4.7.   Absence of Certain Changes or Events..............................................................21
SECTION 4.8.   Litigation .......................................................................................21
SECTION 4.9.   Employee Benefit Plans............................................................................22
SECTION 4.10.  Proxy Statement...................................................................................24
SECTION 4.11.  Brokers ..........................................................................................24
</TABLE>

                                       i

<PAGE>

<TABLE>

<S>     <C>                                                                                                     <C>

SECTION 4.12.  Conduct of Business...............................................................................24
SECTION 4.13.  Compliance with Law...............................................................................25
SECTION 4.14.  Taxes ............................................................................................26
SECTION 4.15.  Intellectual Property.............................................................................28
SECTION 4.16.  Employment Matters................................................................................30
SECTION 4.17.  Vote Required.....................................................................................31
SECTION 4.18.  Environmental Matters.............................................................................31
SECTION 4.19.  Real Property.....................................................................................32
SECTION 4.20.  Title and Condition of Properties.................................................................32
SECTION 4.21.  Contracts ........................................................................................33
SECTION 4.22.  Potential Conflicts of Interest...................................................................33
SECTION 4.23.  Insurance ........................................................................................33
SECTION 4.24.  Opinion of Financial Advisor......................................................................34
SECTION 4.25.  Investment Company................................................................................34
SECTION 4.26.  Full Disclosure...................................................................................34


                ARTICLE V. CONDUCT OF BUSINESS PENDING THE MERGER

SECTION 5.1.   Acquisition Proposals.............................................................................34
SECTION 5.2.   Conduct of Business by the Company Pending the Merger.............................................35
SECTION 5.3.   No Solicitation; Board Recommendation.............................................................37


                        ARTICLE VI. ADDITIONAL AGREEMENTS

SECTION 6.1.   Proxy Statement...................................................................................39
SECTION 6.2.   Meeting of Stockholders of the Company............................................................39
SECTION 6.3.   Additional Agreements.............................................................................40
SECTION 6.4.   Notification of Certain Matters...................................................................40
SECTION 6.5.   Access to Information.............................................................................40
SECTION 6.6.   Public Announcements..............................................................................41
SECTION 6.7.   Best Efforts; Cooperation.........................................................................41
SECTION 6.8.   Agreement to Defend and Indemnify.................................................................41
SECTION 6.9.   Debt Offer .......................................................................................43
SECTION 6.10.  Qualified Electing Fund Documentation.............................................................44
SECTION 6.11. Omnitel Agreement..................................................................................44


                        ARTICLE VII. CONDITIONS OF MERGER

SECTION 7.1.   Offer ............................................................................................45
SECTION 7.2.   Stockholder Approval..............................................................................45
SECTION 7.3.   No Challenge......................................................................................45


                 ARTICLE VIII. TERMINATION, AMENDMENT AND WAIVER

SECTION 8.1.   Termination ......................................................................................45
SECTION 8.2.   Effect of Termination.............................................................................47
</TABLE>

                                       ii

<PAGE>

<TABLE>

<S>     <C>                                                                                                     <C>
                         ARTICLE IX. GENERAL PROVISIONS

SECTION 9.1.   Non-Survival of Representations, Warranties and Agreements........................................48
SECTION 9.2.   Notices ..........................................................................................48
SECTION 9.3.   Expenses .........................................................................................49
SECTION 9.4.   Certain Definitions...............................................................................49
SECTION 9.5.   Headings .........................................................................................50
SECTION 9.6.   Severability......................................................................................50
SECTION 9.7.   Entire Agreement; No Third-Party Beneficiaries....................................................50
SECTION 9.8.   Assignment .......................................................................................50
SECTION 9.9.   Governing Law.....................................................................................51
SECTION 9.10.  Amendment ........................................................................................51
SECTION 9.11.  Waiver ...........................................................................................51
SECTION 9.12.  Counterparts......................................................................................51

ANNEX I                             Conditions to the Offer

Exhibit A                           Option Agreement
Exhibit B                           Stockholders Agreement

SCHEDULES

         Schedule 4.1               Equity Interests
         Schedule 4.2               Capitalization
         Schedule 4.4               No Conflict; Required Filings and Consents
         Schedule 4.6               Liabilities
         Schedule 4.7               Conduct of Business; Certain Changes or Events
         Schedule 4.8               Litigation
         Schedule 4.9               Employment Plans
         Schedule 4.12              Licenses and Permits
         Schedule 4.13              Compliance with Law
         Schedule 4.14              Net Operating Loss and Credit
         Schedule 4.15              Intellectual Property
         Schedule 4.18              Environmental Matters
         Schedule 4.21              Contracts
         Schedule 4.22              Potential Conflicts of Interest
         Schedule 5.2               Conduct of Business
         Schedule 6.8               D & O Insurance
         Schedule 6.9               Debt Offer
</TABLE>

                                      iii

<PAGE>



                              Table of Definitions
<TABLE>

<S>                                                           <C>    
Affiliate......................................................9.4(a)
Agreement....................................................Recitals
Appointment Date..................................................5.2
Audit.........................................................4.14(o)
Balance Sheet.................................................4.14(f)
Board of Directors...........................................Recitals
Certificates..................................................2.11(b)
CCPR..........................................................4.15(a)
Closing...........................................................2.3
Closing Date......................................................2.3
Code...........................................................4.9(a)
Company......................................................Recitals
Company Agreement.............................................4.12(a)
Company Common Stock.........................................Recitals
Company Preferred Stock..........................................4.2?
Computer Software.............................................4.15(a)
Confidentiality Agreement......................................6.5(b)
Control........................................................9.4(b)
Corecomm......................................................4.15(a)
Debt Documents....................................................6.9
Debt Offer........................................................6.9
Delaware Law.................................................Recitals
Disclosure Schedule........................................Article IV
Dissenting Shares.............................................2.10(a)
Distribution Date..........................................1.2(a)(ii)
Effective Time....................................................2.2
Employee Benefit Plans.........................................4.9(a)
Environmental Laws............................................4.18(a)
ERISA..........................................................4.9(a)
ERISA Affiliate................................................4.9(a)
Exchange Act...................................................1.1(a)
Exchange Agent................................................2.11(a)
Expiration Date................................................1.1(b)
Financial Statements...........................................4.5(b)
GAAP...........................................................4.5(b)
Governmental Authority.........................................3.3(b)
HSR Act........................................................3.3(b)
Indemnified Parties............................................6.8(a)
Independent Directors..........................................1.3(a)
Intellectual Property.........................................4.15(b)
Licenses and Permits..........................................4.12(b)
Lien...........................................................9.4(c)
Mannesmann.......................................................4.10
Material Adverse Effect...........................................4.1
Merger.......................................................Recitals
Merger Consideration...........................................2.9(a)
Minimum Condition.............................................Annex 1
Multiemployer Plan.............................................4.9(a)
NTL...........................................................4.15(a)
Offer........................................................Recitals
Offer Documents................................................1.1(c)
Offer Price..................................................Recitals
</TABLE>


<PAGE>

<TABLE>
<S>                                                           <C>    
Offer to Purchase..............................................1.1(c)
Olivetti.........................................................4.10
Omnitel..........................................................4.12
Option Agreement.............................................Recitals
Option Plans..................................................2.12(a)
Option Price..................................................2.12(a)
Options.......................................................2.12(a)
Other Stock Plan..............................................2.12(b)
PBGC...........................................................4.9(e)
Pension Plans..................................................4.9(a)
Person.........................................................9.4(d)
PFIC..........................................................4.14(g)
Proxy Statement............................................2.7(a)(ii)
Purchaser....................................................Recitals
Purchaser Information.............................................3.7
Purchaser Representatives......................................6.5(b)
QEF Election..................................................4.14(g)
Rights.......................................................Recitals
Rights Agreement.............................................Recitals
Schedule 14D-1.................................................1.1(c)
Schedule 14D-9.................................................1.2(b)
SEC............................................................1.1(b)
SEC Reports....................................................4.5(a)
Securities Act.................................................4.5(a)
Senior Notes......................................................6.9
Shares.......................................................Recitals
Special Meeting.............................................2.7(a)(i)
Stockholders Agreement.......................................Recitals
Subsequent Determination.......................................5.3(b)
Subsidiary........................................................4.1
Superior Proposal..............................................5.3(b)
Surviving Corporation.............................................2.1
Takeover Proposal.................................................5.1
Takeover Proposal Interest........................................5.1
Tax Authority.................................................4.14(o)
Tax Return....................................................4.14(p)
Taxes.........................................................4.14(o)
Termination Fee................................................8.2(b)
Treasury Regulations..........................................4.14(m)
Voting Debt.......................................................4.2
Warrants..........................................................4.2
Wasserstein Perella.......................................1.2(a)(iii)

</TABLE>


<PAGE>

                          AGREEMENT AND PLAN OF MERGER

                  AGREEMENT AND PLAN OF MERGER, dated as of December 11, 1998
(the "Agreement"), between Cellular Communications International, Inc., a
Delaware corporation (the "Company"), and Kensington Acquisition Sub, Inc., a
Delaware corporation (the "Purchaser").

                               W I T N E S S E T H

                  WHEREAS, the Boards of Directors of each of the Company and
the Purchaser have determined that it is in the best interests of their
respective stockholders for the Purchaser to acquire the Company upon the terms
and subject to the conditions set forth herein; and

                  WHEREAS, in furtherance thereof, it is proposed that the
Purchaser will make a cash tender offer (the "Offer") to acquire all shares (the
"Shares") of the issued and outstanding common stock, par value $.01 per share,
of the Company ("Company Common Stock"), including the associated Preferred
Stock Purchase Rights (the "Rights") issued pursuant to the Rights Agreement,
dated as of December 19, 1990, between the Company and Continental Stock
Transfer Trust Company (the "Rights Agreement"), for $65.75 per Share (the
"Offer Price"), or such higher price as may be paid in the Offer, in each case
net to the seller in cash;

                  WHEREAS, also in furtherance of such acquisition, the Boards
of Directors of the Company and the Purchaser have each approved the merger (the
"Merger") of the Purchaser with and into the Company following the Offer in
accordance with the General Corporation Law of the State of Delaware ("Delaware
Law") and upon the terms and subject to the conditions set forth herein;

                  WHEREAS, the Board of Directors of the Company (the "Board of
Directors") has unanimously approved this Agreement and has resolved to
recommend acceptance of the Offer and the Merger to the holders of the Shares;

                  WHEREAS, as a condition and inducement to the Purchaser to
enter into this Agreement and to incur the obligations set forth herein,
concurrently with the execution and delivery of this Agreement, the Purchaser
and the Company are entering into an Option Agreement in the form of Exhibit A
hereto (the "Option Agreement"), pursuant to which, among other things, the
Company has granted the Purchaser an option to purchase certain newly-issued
shares of Company Common Stock subject to certain conditions; and

                  WHEREAS, as a condition and inducement to the Purchaser to
enter into this Agreement, the Board of Directors has approved the terms of a
Stockholders Agreement in the form of Exhibit B hereto (the "Stockholders
Agreement") to be entered 


<PAGE>

into by the Purchaser, the Company, and the directors, officers and certain
stockholders of the Company concurrently with the execution of this Agreement,
pursuant to which each such Person (as defined below) has agreed to vote its
Shares for approval of the Merger and this Agreement.

                  NOW, THEREFORE, in consideration of the foregoing and the
mutual representations, warranties, covenants and agreements herein contained,
and intending to be legally bound hereby, the Company and the Purchaser hereby
agree as follows:

                                   ARTICLE I.

                                THE TENDER OFFER

                  SECTION 1.1.  The Offer.

                  (a) Provided that this Agreement shall not have been
terminated in accordance with Section 8.1 hereof and none of the events set
forth in Annex I hereto shall have occurred and be existing, the Purchaser or a
direct or indirect subsidiary thereof shall commence (within the meaning of Rule
14d-2 under the Securities Exchange Act of 1934, as amended (the "Exchange
Act"),) the Offer as promptly as practicable, but in no event later than five
business days following the execution of this Agreement. The obligation of the
Purchaser to accept for payment any Shares tendered shall be subject to the
satisfaction of only those conditions set forth in Annex I. The Purchaser
expressly reserves the right to waive any such condition or to increase the
Offer Price. The Offer Price shall be net to the seller in cash. The Company
agrees that no Shares held by the Company will be tendered pursuant to the
Offer.

                  (b) Without the prior written consent of the Company, the
Purchaser shall not (i) decrease the Offer Price or change the form of
consideration payable in the Offer, (ii) decrease the number of Shares sought,
(iii) amend or waive satisfaction of the Minimum Condition (as defined in Annex
I) or (iv) impose additional conditions to the Offer or amend any other term of
the Offer in any manner adverse to the holders of Shares; provided however, that
if on the initial scheduled expiration date of the Offer (the "Expiration Date")
which shall be twenty (20) business days after the date the Offer is commenced,
all conditions to the Offer shall not have been satisfied or waived, the
Purchaser may, from time to time, in its sole discretion, extend the expiration
date (any such extension to be for ten (10) business days or less); provided,
however, that the expiration date of the Offer may not be extended beyond May
15, 1999. The Purchaser shall, on the terms and subject to the prior
satisfaction or waiver of the conditions of the Offer, accept for payment and
purchase, as soon as practicable after the expiration of the Offer, all Shares
validly tendered and not withdrawn prior to the expiration of the Offer;
provided, however, that the Purchaser may (i) extend the Expiration Date
(including as it may be extended) for up to ten 



                                       2
<PAGE>

(10) business days in connection with an increase in the consideration to be
paid pursuant to the Offer so as to comply with applicable rules and regulations
of the Securities and Exchange Commission (the "SEC"), and (ii) if, immediately
prior to the Expiration Date (as it may be extended), the Shares tendered and
not withdrawn pursuant to the Offer equal less than 90% of the outstanding
Shares, the Purchaser may extend the Offer for a period not to exceed fifteen
(15) business days, notwithstanding that all conditions to the Offer are
satisfied as of such Expiration Date; provided, however, that during any such
extension of the Offer, the Purchaser irrevocably waives all of the conditions
to the Offer set forth in Annex I (other than the Minimum Condition (as defined
in Annex I)). It is agreed that the conditions to the Offer set forth in Annex I
are for the benefit of the Purchaser and may be asserted by the Purchaser
regardless of the circumstances giving rise to any such condition or, except
with respect to the Minimum Condition, may be waived by the Purchaser, in whole
or in part at any time and from time to time, in its sole discretion.

                  (c) The Offer shall be made by means of an offer to purchase
(the "Offer to Purchase") having only the conditions set forth in Annex I
hereto. On the date the Offer is commenced, the Purchaser shall file with the
SEC a Tender Offer Statement on Schedule 14D-1 (together with all amendments and
supplements thereto, and including the exhibits thereto, the "Schedule 14D-1").
The Schedule 14D-1 will contain (including as an exhibit) or incorporate by
reference the Offer to Purchase and forms of the related letter of transmittal
and summary advertisement (which documents, together with any supplements or
amendments thereto, and any other SEC schedule or form which is filed in
connection with the Offer and related transactions, are referred to collectively
herein as the "Offer Documents"). The Offer Documents will comply in all
material respects with the provisions of applicable Federal securities laws and,
on the date filed with the SEC and on the date first published, mailed or given
to the Company's stockholders, shall not contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary in order to make the statements therein, in light of the
circumstances under which they were made, not misleading, except that no
representation is made by the Purchaser with respect to information furnished by
the Company to the Purchaser, in writing, expressly for inclusion in the Offer
Documents. The information supplied by the Company to the Purchaser, in writing,
expressly for inclusion in the Schedule 14D-1 will not contain any untrue
statement of a material fact or omit to state any material fact required to be
stated therein or necessary in order to make the statements therein, in light of
the circumstances under which they were made, not misleading.

                  (d) The Purchaser agrees to take all steps necessary to cause
the Schedule 14D-1 to be filed with the SEC and the Offer Documents to be
disseminated to holders of Shares, in each 



                                       3
<PAGE>

case as and to the extent required by applicable Federal securities laws. The
Company and its counsel shall be given a reasonable opportunity to review and
comment on any Offer Documents before they are filed with the SEC. Each of the
Purchaser and the Company agrees promptly (i) to correct any information
provided by it for use in the Schedule 14D-1 or the Offer Documents if and to
the extent that such information shall have become false or misleading in any
material respect and (ii) to supplement the information provided by it
specifically for use in the Schedule 14D-1 or the Offer Documents to include any
information that shall become necessary in order to make the statements therein,
in light of the circumstances under which they were made, not misleading. The
Purchaser further agrees to take all steps necessary to cause the Schedule 14D-1
as so corrected to be filed with the SEC and to be disseminated to the Company's
stockholders, in each case as and to the extent required by applicable Federal
securities laws. In addition, the Purchaser agrees to provide the Company and
its counsel with any comments, whether written or oral, that the Purchaser or
its counsel may receive from time to time from the SEC or its staff with respect
to the Schedule 14D-1 promptly after the receipt of such comments.

                  (e) The Purchaser shall have available on a timely basis the
funds necessary to accept for payment, and pay for, any Shares that the
Purchaser becomes obligated to pay for pursuant to the Offer or pursuant to
Article II hereof.

                  SECTION 1.2.  Company Action.

                  (a) The Company hereby approves of and consents to the Offer
and represents and warrants that:

                  (i) the Board of Directors, at a meeting duly called and held
         on December 10, 1998, at which a majority of the Directors were
         present: duly and unanimously approved and adopted this Agreement, the
         Option Agreement, the Stockholders Agreement and the transactions
         contemplated hereby and thereby, including the Offer and the Merger,
         resolved to recommend that the stockholders of the Company accept the
         Offer, tender their Shares pursuant to the Offer and approve this
         Agreement and the transactions contemplated hereby, including the
         Merger; and determined that this Agreement and the transactions
         contemplated hereby, including the Offer and the Merger, are fair to
         and in the best interests of the holders of Shares; provided, however,
         that prior to the purchase by the Purchaser of Shares pursuant to the
         Offer, the Company may modify, withdraw or change such recommendation
         to the extent that the Board of Directors determines, after
         consultation with outside legal counsel to the Company, that the
         failure to so withdraw, modify or change such recommendation would
         likely breach the fiduciary duties of the Board of Directors under
         applicable laws;

                                       4
<PAGE>

                  (ii) with respect to the Rights Agreement, the Company has
         duly amended the Rights Agreement to provide that (A) neither this
         Agreement nor any of the transactions contemplated hereby, including
         the Offer and the Merger, will result in the occurrence of a
         "Distribution Date" (as such term is defined in the Rights Agreement)
         or otherwise cause the Rights to become exercisable by the holders
         thereof, and (B) the Rights shall automatically on and as of the
         Effective Time (as defined below) be void and of no further force or
         effect; and

                  (iii) Wasserstein Perella & Co., Inc. ("Wasserstein Perella")
         has delivered to the Board of Directors its written opinion that as of
         the date hereof the consideration to be received by the stockholders of
         the Company pursuant to each of the Offer and the Merger is fair to the
         stockholders of the Company from a financial point of view. The Company
         has been authorized by Wasserstein Perella to permit the inclusion of
         such fairness opinion (or a reference thereto) in the Offer Documents
         and in the Schedule 14D-9 referred to below. The Company hereby
         consents to the inclusion in the Offer Documents of the recommendations
         of the Board of Directors described in this Section 1.2(a).

                  (b) The Company shall file with the SEC, no later than the
fifth business day following the public announcement of this Agreement, a Tender
Offer Solicitation/Recommendation Statement on Schedule 14D-9 (together with any
and all amendments or supplements thereto, and including the exhibits thereto,
the "Schedule 14D-9"). The Schedule 14D-9 will comply in all material respects
with the provisions of all applicable law, including Federal securities law and,
on the date filed with the SEC and on the date first published, sent or given to
the Company's stockholders, shall not contain any untrue statement of a material
fact or omit to state any material fact required to be stated therein or
necessary in order to make the statements therein, in light of the circumstances
under which they were made, not misleading, except that no representation is
made by the Company with respect to information furnished by the Purchaser, in
writing, expressly for inclusion in the Schedule 14D-9. The Company further
agrees to take all steps necessary to cause the Schedule 14D-9 to be filed with
the SEC and to be disseminated to holders of the Shares, in each case as and to
the extent required by applicable Federal securities laws. The Company shall
mail, or cause to be mailed, such Schedule 14D-9 to the stockholders of the
Company at the same time the Offer Documents are first mailed to the
stockholders of the Company together with such Offer Documents. The Schedule
14D-9 and the Offer Documents shall contain the recommendations of the Board of
Directors described in Section 1.2(a) hereof. The Company agrees promptly to
correct the Schedule 14D-9 if and to the extent that it shall have become false
or misleading in any material respect (and the Purchaser, with respect to
written information supplied 



                                       5
<PAGE>

by it specifically for use in the Schedule 14D-9, shall promptly notify the
Company of any required corrections of such information and cooperate with the
Company with respect to correcting such information) and to supplement the
information contained in the Schedule 14D-9 to include any information that
shall become necessary in order to make the statements therein, in light of the
circumstances under which they were made, not misleading. The Company further
agrees to take all steps necessary to cause the Schedule 14D-9 as so corrected
to be filed with the SEC and to be disseminated to the stockholders of the
Company, in each case as and to the extent required by applicable law, including
Federal securities laws. The Purchaser and its counsel shall be given a
reasonable opportunity to review and comment on the Schedule 14D-9 before it is
filed with the SEC. In addition, the Company agrees to provide the Purchaser and
its counsel with any comments, whether written or oral, that the Company or its
counsel may receive from time to time from the SEC or its staff with respect to
the Schedule 14D-9 promptly after the receipt of such comments.

                  (c) In connection with the Offer, the Company, promptly upon
execution of this Agreement, shall furnish or cause to be furnished to the
Purchaser mailing labels containing the names and addresses of all record
holders of Shares, non-objecting beneficial owner lists and security position
listings of Shares held in stock depositories, each as of a recent date, and
shall promptly furnish the Purchaser with such additional information
(including, but not limited to, updated lists and computer files containing the
names of stockholders and their addresses, mailing labels and security position
listings) and such other information and assistance as the Purchaser or its
agents may reasonably request for the purpose of communicating the Offer to the
record and beneficial holders of Shares.

                  SECTION 1.3.  Directors.

                  (a) Promptly upon the purchase by the Purchaser of any Shares
pursuant to the Offer, and from time to time thereafter as Shares are acquired
by the Purchaser, the Purchaser shall be entitled to designate such number of
directors, rounded up to the next whole number, on the Board of Directors as
will give the Purchaser, subject to compliance with Section 14(f) of the
Exchange Act and Rule 14f-1 promulgated thereunder, representation on the Board
of Directors equal to at least that number of directors which equals the product
of the total number of directors on the Board of Directors (giving effect to the
directors appointed or elected pursuant to this sentence and including current
directors serving as officers of the Company) multiplied by the percentage that
the aggregate number of Shares beneficially owned by the Purchaser or any
affiliate of the Purchaser (including for purposes of this Section 1.3 such
Shares as are accepted for payment pursuant to the Offer, but excluding Shares
held by the Company and excluding Shares beneficially owned by the Purchaser by
virtue of the Option Agreement) bears 



                                       6
<PAGE>

to the number of Shares outstanding. At such times, the Company will also cause
each committee of the Board of Directors to include Persons designated by the
Purchaser constituting at least the same percentage of each such committee or
board as the Purchaser's designees are of the Board of Directors. The Company
shall, upon request by the Purchaser, promptly increase the size of the Board of
Directors or exercise its best efforts to secure the resignations of such number
of incumbent directors as is necessary to enable the Purchaser's designees to be
elected to the Board of Directors in accordance with the terms of this Section
1.3 and shall cause the Purchaser's designees to be so elected; provided,
however, that, in the event that the Purchaser's designees are appointed or
elected to the Board of Directors, until the Effective Time (as defined below)
the Board of Directors shall have at least one director who is a director on the
date hereof and who is neither an officer of the Company nor a designee,
stockholder, affiliate or associate (within the meaning of the Federal
securities laws) of the Purchaser (one or more of such directors, the
"Independent Directors"); provided, further, that if no Independent Directors
remain, the other directors shall designate one Person to fill one of the
vacancies who shall not be either an officer of the Company or a designee,
stockholder, affiliate or associate of the Purchaser, and such Person shall be
deemed to be an Independent Director for purposes of this Agreement.

                  (b) Subject to applicable law, the Company shall promptly take
all action necessary pursuant to Section 14(f) of the Exchange Act and Rule
14f-1 promulgated thereunder in order to fulfill its obligations under this
Section 1.3 and shall include in the Schedule 14D-9 mailed to stockholders
promptly after the commencement of the Offer (or an amendment thereof or an
information statement pursuant to Rule 14f-1 if the Purchaser has not
theretofore designated directors) such information with respect to the Company
and its officers and directors as is required under Section 14(f) and Rule 14f-1
in order to fulfill its obligations under this Section 1.3. The Purchaser will
supply the Company and be solely responsible for any information with respect to
itself and its nominees, officers, directors and affiliates required by Section
14(f) and Rule 14f-1. Notwithstanding anything in this Agreement to the
contrary, in the event that the Purchaser's designees are elected to the Board
of Directors, after the acceptance for payment and purchase of Shares pursuant
to the Offer and prior to the Effective Time, the affirmative vote of a majority
of the Independent Directors shall be required to (i) amend or terminate this
Agreement on behalf of the Company, (ii) exercise or waive any of the Company's
rights or remedies hereunder, (iii) extend the time for performance of the
Purchaser's obligations hereunder or (iv) take any other action by the Company
in connection with this Agreement required to be taken by the Board of
Directors.



                                       7
<PAGE>

                                   ARTICLE II.

                                   THE MERGER

                  SECTION 2.1. The Merger. At the Effective Time and subject to
and upon the terms and conditions of this Agreement and Delaware Law, the
Purchaser shall be merged with and into the Company, the separate corporate
existence of the Purchaser shall cease and the Company shall continue as the
surviving corporation. The Company as the surviving corporation after the Merger
hereinafter sometimes is referred to as the "Surviving Corporation."

                  SECTION 2.2. Effective Time. The parties hereto shall cause a
Certificate of Merger to be executed and filed on the Closing Date (as defined
below) (or on such other date as the Purchaser and the Company may agree) with
the Secretary of State of the State of Delaware, in such form as required by,
and executed in accordance with the relevant provisions of, Delaware Law. The
Merger shall become effective on the date on which the Certificate of Merger is
duly filed with the Secretary of State of the State of Delaware or such time as
is agreed upon by the parties and specified in the Certificate of Merger, and
such time is hereinafter referred to as the "Effective Time."

                  SECTION 2.3. Closing. The closing of the Merger (the
"Closing") shall take place at 10:00 a.m. on a date to be specified by the
parties, which shall be no later than the third business day after satisfaction
or waiver of all of the conditions set forth in Article VII hereof (the "Closing
Date"), at the offices of Willkie Farr & Gallagher, 787 Seventh Avenue, New
York, New York, unless another date or place is agreed to in writing by the
parties hereto.

                  SECTION 2.4. Effect of the Merger. At the Effective Time, the
effect of the Merger shall be as provided in the applicable provisions of
Delaware Law. Without limiting the generality of the foregoing, and subject
thereto, at the Effective Time all the property, rights, privileges, powers and
franchises of the Company and the Purchaser shall vest in the Surviving
Corporation, and all debts, liabilities and duties of the Company and the
Purchaser shall become the debts, liabilities and duties of the Surviving
Corporation.

                  SECTION 2.5. Subsequent Actions. If, at any time after the
Effective Time, the Surviving Corporation shall consider or be advised that any
deeds, bills of sale, assignments, assurances or any other actions or things are
necessary or desirable to vest, perfect or confirm of record or otherwise in the
Surviving Corporation its right, title or interest in, to or under any of the
rights, businesses, properties or assets of either of the Company or the
Purchaser acquired or to be acquired by the Surviving Corporation as a result
of, or in connection with, the Merger or otherwise to 



                                       8
<PAGE>

carry out this Agreement, the officers and directors of the Surviving
Corporation shall be authorized to execute and deliver, in the name and on
behalf of either the Company or the Purchaser, all such deeds, bills of sale,
assignments and assurances and to take and do, in the name and on behalf of each
of such corporations or otherwise, all such other actions and things as may be
necessary or desirable to vest, perfect or confirm any and all right, title and
interest in, to and under such rights, businesses, properties or assets in the
Surviving Corporation or otherwise to carry out this Agreement.

                  SECTION 2.6.  Certificate of Incorporation; By-Laws; Directors
 and Officers.

                  (a) Unless otherwise determined by the Purchaser before the
Effective Time, at the Effective Time the Certificate of Incorporation of the
Purchaser, as in effect immediately before the Effective Time, shall be the
Certificate of Incorporation of the Surviving Corporation until thereafter
amended as provided by law and such Certificate of Incorporation.

                  (b) The By-Laws of the Purchaser, as in effect immediately
before the Effective Time, shall be the By-Laws of the Surviving Corporation
until thereafter amended as provided by law, the Certificate of Incorporation of
the Surviving Corporation and such By-Laws.

                  (c) The directors of the Purchaser immediately before the
Effective Time will be the initial directors of the Surviving Corporation, and
the officers of the Company immediately before the Effective Time will be the
initial officers of the Surviving Corporation, in each case until their
successors are elected or appointed and qualified. If, at the Effective Time, a
vacancy shall exist on the Board of Directors or in any office of the Surviving
Corporation, such vacancy may thereafter be filled in the manner provided by
law.

                  SECTION 2.7.  Stockholders' Meeting.

                  (a) If required by applicable law in order to consummate the
Merger, the Company, acting through its Board of Directors, shall, in accordance
with applicable law:

                  (i) duly call, give notice of, convene and hold a special
         meeting of its stockholders (the "Special Meeting") as promptly as
         practicable following the acceptance for payment and purchase of Shares
         by the Purchaser pursuant to the Offer for the purpose of considering
         and taking action upon the approval of the Merger and the adoption of
         this Agreement;

                  (ii) prepare and file with the SEC a preliminary proxy or
         information statement relating to the Merger and this Agreement and use
         its best efforts (x) to obtain and 



                                       9
<PAGE>

         furnish the information required to be included by the SEC in the Proxy
         Statement (as defined below) and, after consultation with the
         Purchaser, to respond promptly to any comments made by the SEC with
         respect to the preliminary proxy or information statement and cause a
         definitive proxy or information statement, including any amendment or
         supplement thereto (the "Proxy Statement"), to be mailed to its
         stockholders, provided that no amendment or supplement to the Proxy
         Statement will be made by the Company without consultation with the
         Purchaser and its counsel and (y) to obtain the necessary approvals of
         the Merger and this Agreement by its stockholders; and

                  (iii) notwithstanding the provisions of Section 2.7(a)(ii)(y),
         unless the Board of Directors, after consultation with outside legal
         counsel to the Company, determines that to do so would likely breach
         the fiduciary duties of the Board of Directors under applicable law,
         include in the Proxy Statement the recommendation of the Board of
         Directors that stockholders of the Company vote in favor of the
         approval of the Merger and the adoption of this Agreement.

                  (b) The Purchaser shall vote, or cause to be voted, all of the
Shares then owned by it or any of its subsidiaries and affiliates in favor of
the approval of the Merger and the adoption of this Agreement.

                  SECTION 2.8. Merger Without Meeting of Stockholders.
Notwithstanding Section 2.7 hereof, in the event that the Purchaser or any
subsidiary of the Purchaser shall acquire at least 90% of the outstanding
Shares, pursuant to the Offer or otherwise, the parties hereto shall, at the
request of the Purchaser and subject to Article VII hereof, take all necessary
and appropriate action to cause the Merger to become effective as soon as
practicable after such acquisition, without a meeting of stockholders of the
Company, in accordance with Section 253 of Delaware Law.

                  SECTION 2.9. Conversion of Securities. At the Effective Time,
by virtue of the Merger and without any action on the part of the Purchaser, the
Company or the holder of any of the following securities:

                  (a) Each Share issued and outstanding immediately before the
Effective Time (other than any Shares to be cancelled pursuant to Section 2.9(b)
and any Dissenting Shares (as defined in Section 2.10(a)) shall be cancelled and
extinguished and be converted into the right to receive the Offer Price in cash
payable to the holder thereof, without interest (the "Merger Consideration"),
upon surrender of the certificate formerly representing such Share in the manner
provided in Section 2.11 hereof. All such Shares, when so converted, shall no
longer be outstanding and shall automatically be cancelled and retired and 



                                       10
<PAGE>

shall cease to exist, and each holder of a certificate representing any such
Shares shall cease to have any rights with respect thereto, except the right to
receive the Merger Consideration therefor upon the surrender of such certificate
in accordance with Section 2.11 hereof, without interest.

                  (b) Each Share held in the treasury of the Company and each
Share owned by the Purchaser or any direct or indirect wholly owned subsidiary
of the Purchaser immediately before the Effective Time shall be cancelled and
extinguished and no payment or other consideration shall be made with respect
thereto.

                  (c) Each share of common stock, par value $.01 per share, of
the Purchaser issued and outstanding immediately before the Effective Time shall
thereafter represent one validly issued, fully paid and nonassessable share of
common stock, par value $.01 per share, of the Surviving Corporation.

                  SECTION 2.10.  Dissenting Shares.

                  (a) Notwithstanding any provision of this Agreement to the
contrary, any Shares held by a holder who has demanded and perfected his demand
for appraisal of his Shares in accordance with Delaware Law (including but not
limited to Section 262 thereof) and as of the Effective Time has neither
effectively withdrawn nor lost his right to such appraisal ("Dissenting
Shares"), shall not be converted into or represent the right to receive the
Merger Consideration pursuant to Section 2.9, but the holder thereof shall be
entitled to only such rights as are granted by Delaware Law.

                  (b) Notwithstanding the provisions of Section 2.7(a), if any
holder of Shares who demands appraisal of his Shares under Delaware Law shall
effectively withdraw or lose (through failure to perfect or otherwise) his right
to appraisal, then as of the Effective Time or the occurrence of such event,
whichever later occurs, such holder's Shares shall automatically be converted
into and represent only the right to receive the Merger Consideration as
provided in Section 2.9(a), without interest thereon, upon surrender of the
certificate or certificates representing such Shares pursuant to Section 2.11
hereof.

                  (c) The Company shall give the Purchaser (i) prompt notice of
any written demands for appraisal or payment of the fair value of any Shares,
withdrawals of such demands, and any other instruments served pursuant to
Delaware Law received by the Company and (ii) the opportunity to direct all
negotiations and proceedings with respect to demands for appraisal under
Delaware Law. The Company shall not voluntarily make any payment with respect to
any demands for appraisal and shall not, except with the prior written consent
of the Purchaser, settle or offer to settle any such demands.



                                       11
<PAGE>

                  SECTION 2.11.  Surrender of Shares; Stock Transfer Books.

                  (a) Before the Effective Time, the Purchaser shall designate a
bank or trust company reasonably acceptable to the Company to act as agent for
the holders of Shares in connection with the Merger (the "Exchange Agent") to
receive the funds necessary to make the payments contemplated by Section 2.9. At
the Effective Time, the Purchaser shall deposit, or cause to be deposited, in
trust with the Exchange Agent for the benefit of holders of Shares the aggregate
consideration to which such holders shall be entitled at the Effective Time
pursuant to Section 2.9.

                  (b) Each holder of certificates representing any Shares
cancelled upon the Merger, which immediately prior to the Effective Time
represented outstanding Shares (the "Certificates") whose Shares were converted
pursuant to Section 2.9(a), may thereafter surrender such Certificate or
Certificates to the Exchange Agent, as agent for such holder, to effect the
surrender of such Certificate or Certificates on such holder's behalf for a
period ending one year after the Effective Time. The Purchaser agrees that
promptly after the Effective Time it shall cause the distribution to holders of
record of Shares as of the Effective Time of appropriate materials to facilitate
such surrender. Upon the surrender of Certificates, the Purchaser shall cause
the Exchange Agent to pay the holder of such Certificates in exchange therefor
cash in an amount equal to the Merger Consideration multiplied by the number of
Shares represented by such Certificate. Until so surrendered, each Certificate
(other than Certificates representing Dissenting Shares and Certificates
representing Shares held by the Purchaser or any direct or indirect wholly owned
subsidiary of the Purchaser or in the treasury of the Company) shall represent
solely the right to receive the aggregate Merger Consideration relating thereto.

                  (c) If payment of the Merger Consideration in respect of
cancelled Shares is to be made to a Person other than the Person in whose name a
surrendered Certificate or instrument is registered, it shall be a condition to
such payment that the Certificate or instrument so surrendered shall be properly
endorsed or shall be otherwise in proper form for transfer and that the Person
requesting such payment shall have paid any transfer and other taxes required by
reason of such payment in a name other than that of the registered holder of the
Certificate or instrument surrendered or shall have established to the
satisfaction of the Purchaser or the Exchange Agent that such tax either has
been paid or is not applicable.

                  (d) At the Effective Time, the stock transfer books of the
Company shall be closed and there shall not be any further registration of
transfers of Shares or any shares of capital stock thereafter on the records of
the Company. From and after 



                                       12
<PAGE>

the Effective Time, the holders of certificates evidencing ownership of the
Shares outstanding immediately prior to the Effective Time shall cease to have
any rights with respect to such Shares, except as otherwise provided for herein
or by applicable law. If, after the Effective Time, Certificates are presented
to the Surviving Corporation, they shall be cancelled and exchanged for the
Merger Consideration as provided in this Article II. No interest shall accrue or
be paid on any cash payable upon the surrender of a Certificate or Certificates
which immediately before the Effective Time represented outstanding Shares.

                  (e) Promptly following the date which is one year after the
Effective Time, the Surviving Corporation shall be entitled to require the
Exchange Agent to deliver to it any cash (including any interest received with
respect thereto), Certificates and other documents in its possession relating to
the transactions contemplated hereby, which had been made available to the
Exchange Agent and which have not been disbursed to holders of Certificates, and
thereafter such holders shall be entitled to look to the Surviving Corporation
(subject to abandoned property, escheat or similar laws) only as general
creditors thereof with respect to the Merger Consideration payable upon due
surrender of their Certificates, without any interest thereon. Notwithstanding
the foregoing, neither the Surviving Corporation nor the Exchange Agent shall be
liable to any holder of a Certificate for Merger Consideration delivered to a
public official pursuant to any applicable abandoned property, escheat or
similar law.

                  (f) The Merger Consideration paid in the Merger shall be net
to the holder of Shares in cash, subject to reduction only for any applicable
Federal backup withholding or, as set forth in Section 2.8(c), stock transfer
taxes payable by such holder.

                  SECTION 2.12.  Stock Plans.

                  (a) The Company shall take all actions necessary to provide
that, at the Effective Time, (i) each then outstanding option to purchase shares
of Company Common Stock (the "Options") granted under any of the Company's stock
option plans referred to in Section 4.2 hereof, each as amended (collectively,
the "Option Plans"), whether or not then exercisable or vested, shall be
cancelled and (ii) in consideration of such cancellation, such holders of
Options shall receive for each Share subject to such Option an amount (subject
to any applicable withholding tax) in cash equal to the product of (A) the
excess, if any, of the Offer Price over the per share exercise price of such
Option and (B) the number of Shares subject to such Option (such amount being
herein referred to as the "Option Price"); provided, however, that the Company
shall obtain all necessary consents or releases from holders of Options to
effect the foregoing. Upon receipt of the Option Price, the Option shall be
cancelled. The surrender of an Option to the Company shall be deemed a release
of any and 



                                       13
<PAGE>

all rights the holder had or may have had in respect of such Option. As promptly
as practicable following the consummation of the Merger, the Purchaser shall
provide the Company with the funds necessary to satisfy its obligations under
this Section 2.12(a).

                  (b) Except as provided herein or as otherwise agreed to by the
parties and to the extent permitted by the Option Plans, (i) the Company shall
cause the Option Plans to terminate as of the Effective Time and shall provide
for the payment of any benefit due under such Option Plans in cash; (ii) the
Company shall cause the provisions in any other plan, program or arrangement,
which currently provides or previously provided for the issuance or grant by the
Company of any interest in respect of the capital stock of the Company, or for
payments based on the value of the capital stock of the Company (each such other
plan being referred to as an "Other Stock Plan") to terminate as of the
Effective Time and shall provide for the payment of any benefit due under such
plans in cash; and (iii) the Company shall take all action necessary to ensure
that following the Effective Time no holder of Options or any participant in the
Option Plans or in any Other Stock Plan shall have any right thereunder to
acquire any equity securities of the Company, the Surviving Corporation or any
subsidiary thereof, and to terminate all such plans. The Purchaser shall assure
that the Company has the funds necessary to meet its obligations under this
Section 2.12(b).

                                  ARTICLE III.

                 REPRESENTATIONS AND WARRANTIES OF THE PURCHASER

                    The Purchaser represents and warrants to the Company as
follows:

                  SECTION 3.1. Corporate Organization. The Purchaser is a
corporation duly organized under the laws of the State of Delaware. The
Purchaser has the requisite corporate power and authority and any necessary
governmental approvals to own, operate or lease the properties that it purports
to own, operate or lease and to carry on its business as it is now being
conducted, except where the failure to be so organized, existing and in good
standing or to have such power, authority, and governmental approvals would not
have, individually or in the aggregate, a material adverse effect on the
Purchaser or on the ability of the Purchaser to consummate any of the
transactions contemplated by this Agreement or to perform its obligations under
this Agreement.

                  SECTION 3.2. Authority Relative to this Agreement. The
execution and delivery of this Agreement by the Purchaser and the consummation
by the Purchaser of the Merger and the transactions contemplated hereby and
thereby have been duly authorized by all necessary action on the part of the
Purchaser and no other proceeding is necessary for the execution and 



                                       14
<PAGE>

delivery of this Agreement by the Purchaser, the performance by the Purchaser of
its obligations hereunder and the consummation by the Purchaser of the
transactions contemplated hereby. This Agreement has been duly executed and
delivered by the Purchaser and, assuming due and valid authorization, execution
and delivery hereof by the Company, constitutes a legal, valid and binding
obligation of the Purchaser, enforceable against the Purchaser in accordance
with its terms.

                  SECTION 3.3.  No Conflict; Required Filings and Consents.

                  (a) The execution and delivery of this Agreement by the
Purchaser do not, and the performance of this Agreement by the Purchaser will
not, (i) conflict with or violate any law, regulation, court order, judgment or
decree applicable to the Purchaser or by which any of its property is bound or
affected, (ii) violate or conflict with the Certificate of Incorporation or
By-Laws of the Purchaser, or (iii) result in a violation or breach of or
constitute a default under (with or without due notice or lapse of time, or
both), or give to others any rights of termination or cancellation of, or result
in the creation of a Lien on any of the property or assets of the Purchaser
pursuant to, any contract, instrument, permit, license or franchise to which the
Purchaser is a party or by which the Purchaser or any of its property is bound
or affected.

                  (b) Except for applicable requirements, if any, of the
Exchange Act, the pre-merger notification requirements of the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended (the "HSR Act"), and filing and
recordation of appropriate merger documents as required by Delaware Law, the
Purchaser is not required to submit any notice, report or other filing with any
court, arbitrable tribunal, administrative agency or commission or other
governmental or other regulatory authority or agency, domestic or foreign (a
"Governmental Authority"), in connection with the execution, delivery or
performance of this Agreement or the consummation of the transactions
contemplated hereby. No waiver, consent, approval or authorization of any
Governmental Authority is required to be obtained or made by the Purchaser in
connection with its execution, delivery or performance of this Agreement.

                  SECTION 3.4. Financing Arrangements. At the Expiration Date,
the Purchaser will have funds available to it sufficient to purchase the Shares
in accordance with the terms of this Agreement.

                  SECTION 3.5. No Prior Activities. Except for obligations or
liabilities incurred in connection with its incorporation or organization or the
negotiation and consummation of this Agreement and the transactions contemplated
hereby, the Purchaser has not incurred any obligations or liabilities, and has
not engaged in any business or activities of any type or kind 



                                       15
<PAGE>

whatsoever, or entered into any agreements or arrangements with any Person or
entity.

                  SECTION 3.6. Brokers. Except as to Goldman, Sachs & Co., no
broker, finder or investment banker is entitled to any brokerage, finder's or
other fee or commission in connection with the transactions contemplated by this
Agreement based upon arrangements made by and on behalf of the Purchaser.

                  SECTION 3.7. Proxy Statement. None of the information supplied
by the Purchaser, the stockholders of the Purchaser or their respective
officers, directors, representatives, agents or employees (the "Purchaser
Information"), in writing, expressly for inclusion in the Proxy Statement, if
any, or in any amendments thereof or supplements thereto, will, on the date the
Proxy Statement is mailed to stockholders and at the time of the meeting of
stockholders, if any, to be held in connection with the Merger, contain any
untrue statement of a material fact or contain or omit to state any material
fact required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they are made, not
misleading. Notwithstanding the foregoing, the Purchaser does not make any
representation or warranty with respect to any information that has been
supplied by the Company or its accountants, counsel or other authorized
representatives for use in any of the foregoing documents.

                                   ARTICLE IV.

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

                    Except as set forth on the Disclosure Schedule delivered to
  the Purchaser prior to the execution of this Agreement (the "Disclosure
  Schedule"), the Company hereby represents and warrants to the Purchaser as
  follows:

                  SECTION 4.1. Organization and Qualification; Subsidiaries. The
Company is a corporation duly organized, validly existing and in good standing
under the laws of the State of Delaware and has the requisite corporate power
and authority and any necessary governmental approvals to own, operate or lease
the properties that it purports to own, operate or lease and to carry on its
business as it is now being conducted, and is duly qualified as a foreign
corporation to do business, and is in good standing, in each jurisdiction where
the character of its properties owned, operated or leased or the nature of its
activities makes such qualification necessary, except for such failure which,
when taken together with all other such failures, would not have a Material
Adverse Effect (as defined below). Except as disclosed on Schedule 4.1 of the
Disclosure Schedule, the Company does not own any Subsidiaries and does not
otherwise have an equity interest in any other Person. The Subsidiaries listed
on Schedule 4.1 do not have any assets, obligations or liabilities of any type
or kind and will be dissolved prior to 



                                       16
<PAGE>

December 31, 1998. The term "Subsidiary" means any corporation or other legal
entity of which the Company (either alone or through or together with any other
Subsidiary) owns, directly or indirectly, more than 50% of the capital stock or
other equity interests the holders of which are generally entitled to vote for
the election of the board of directors or other governing body of such
corporation or other legal entity. The term "Material Adverse Effect" means any
change in or effect on the business of the Company that is not a result of the
business operations of Omnitel (as defined below) or of general changes in the
economy or the industries in which the Company operates or results from
regulatory changes generally applicable to cellular operators in Europe or Italy
(including, without limitation, the issuance of a fourth Italian cellular
license or rules with respect to interconnections or pricing for incoming calls)
or a result of this Agreement that is or could reasonably be expected to be
materially adverse to (x) the business, operations, properties (including
intangible properties), condition (financial or otherwise), results of
operations, assets, liabilities, regulatory status or prospects of the Company
or (y) the ability of the Company to consummate any transactions contemplated by
this Agreement or the Option Agreement or to perform its obligations under this
Agreement or the Option Agreement.

                  SECTION 4.2. Capitalization. The authorized capital stock of
the Company consists of 75,000,000 shares of Company Common Stock and 2,500,000
shares of Preferred Stock, $.01 par value per share ("Company Preferred Stock"),
1,000,000 shares of which have been designated "Series A Preferred Stock". As of
November 30, 1998, (i) 16,715,306 shares of Company Common Stock and no shares
of Company Preferred Stock were issued and outstanding, (ii) 2,274,140 shares of
Company Common Stock were reserved for issuance in connection with the exercise
of outstanding options under the Option Plans, (iii) 651,091 shares of Company
Common Stock were reserved for issuance in connection with the exercise of
currently outstanding warrants ("Warrants") and (iv) 2,159,129 shares of Company
Common Stock were reserved for issuance in connection with the conversion of
currently outstanding Voting Debt (as defined below). All of the issued and
outstanding shares of the Company's capital stock are, and all Shares which may
be issued pursuant to the exercise or conversion of outstanding Options,
Warrants and Voting Debt will be, when issued in accordance with the respective
terms thereof, duly authorized, validly issued, fully paid and nonassessable and
free of preemptive or similar rights. Except as disclosed on Schedule 4.2 of the
Disclosure Schedule, there are no bonds, debentures, notes or other indebtedness
having general voting rights (or convertible into securities having such rights)
("Voting Debt") of the Company issued and outstanding. There are no voting
trusts or other agreements or understandings to which the Company is a party
with respect to the voting of the capital stock of the Company. Except as
disclosed on Schedule 4.2 of the Disclosure Schedule, as of the date hereof
there are no, and as of the Expiration Date there will be no, other options,
warrants, 



                                       17
<PAGE>

puts, calls, preemptive rights, subscriptions or other rights, agreements,
arrangements or commitments of any character relating to the issued, unissued or
treasury shares of the capital stock or any other interest in the ownership or
earnings of the Company or other security of the Company obligating the Company
to issue or sell any shares of capital stock or Voting Debt of, or other equity
interests in, the Company. Except as disclosed on Schedule 4.2 of the Disclosure
Schedule, there are no outstanding contractual obligations of the Company or any
of its Subsidiaries to repurchase, redeem or otherwise acquire any shares of
capital stock of the Company or to provide funds to or make any investment (in
the form of a loan, capital contribution or otherwise) in any other entity.

                  SECTION 4.3.  Authority Relative to this Agreement; Company 
Action.

                  (a) The Company has the necessary corporate power and
authority to enter into this Agreement, the Option Agreement and the
Stockholders Agreement and, subject to obtaining any necessary stockholder
approval of the Merger, to carry out its obligations hereunder and thereunder.
The execution and delivery of this Agreement by the Company and the consummation
by the Company of the transactions contemplated by this Agreement, the Option
Agreement and the Stockholders Agreement have been duly authorized by all
necessary corporate action on the part of the Company, subject to the approval,
if necessary, of the Merger by the Company's stockholders in accordance with
Delaware Law. Each of this Agreement, the Option Agreement and the Stockholders
Agreement has been duly executed and delivered by the Company and, assuming due
and valid authorization, execution and delivery hereof and thereof by the other
parties hereto and thereto, each of this Agreement and the Stockholders
Agreement constitutes a legal, valid and binding obligation of the Company,
enforceable against it in accordance with its terms.

                  (b) The Company has taken all action which may be necessary
under the Rights Agreement, so that (i) the execution of this Agreement, the
Option Agreement and the Stockholders Agreement and any amendments hereto and
thereto by the parties hereto and thereto and the consummation of the
transactions contemplated hereby and thereby shall not cause (A) the Purchaser
to become an Acquiring Person (as defined in the Rights Agreement) or (B) a
Distribution Date, a Stock Acquisition Date or a Triggering Event (as such terms
are defined in the Rights Agreement) to occur, irrespective of the number of
Shares acquired pursuant to the Offer or exercise of the option granted under
the Option Agreement, and (ii) the Rights (as defined in the Rights Agreement)
shall expire upon the acceptance of Shares for payment pursuant to the Offer.

                  (c) The Board of Directors has approved this Agreement, the
Option Agreement, the Stockholders Agreement and the transactions contemplated
hereby and thereby (including but 



                                       18
<PAGE>

not limited to the Offer, the Merger and the matters provided for in the Option
Agreement) so as to render inapplicable hereto and thereto the limitation on
business combinations contained in (i) Section 203 of Delaware Law (or any
similar provision) and (ii) Article Ninth of the Restated Certificate of
Incorporation of the Company. As a result, the only vote of holders of any class
or series of the capital stock of the Company required to adopt this Agreement
and the transactions contemplated hereby, including the Merger, is the
affirmative vote of a majority of the outstanding Shares, and if Section 253 of
Delaware Law is applicable to the Merger, no such vote will be required. Neither
Section 203 of Delaware Law nor any other state takeover or control share
statute or similar statute or regulation applies or purports to apply to the
Offer, the Merger or any of the transactions contemplated hereby or thereby.

                  SECTION 4.4.  No Conflict; Required Filings and Consents.

                  (a) Except as disclosed on Schedule 4.4 of the Disclosure
Schedule, to the Company's knowledge, the execution and delivery of this
Agreement, the Option Agreement and the Stockholders Agreement by the Company do
not, and the performance of this Agreement, the Option Agreement and the
Stockholders Agreement by the Company will not, (i) conflict with or violate any
law, order, writ, injunction, decree, statute, rule or regulation, court order
or judgment applicable to the Company or by which its property is bound or
affected, (ii) violate or conflict with the Restated Certificate of
Incorporation or By-Laws of the Company, or (iii) result in a violation or
breach of, constitute a default under (with or without due notice or lapse of
time or both), give to others any rights of termination or cancellation of, or
result in the creation of a Lien on any of the properties or assets of the
Company pursuant to, any contract, instrument, permit, license or franchise to
which the Company is a party or by which the Company or its property is bound or
affected, excluding from the foregoing clauses (i) and (iii) such violations,
breaches or defaults which, in the aggregate, would not have a Material Adverse
Effect. For purposes of this Agreement, "to the knowledge of the Company" or "to
the Company's knowledge" shall be limited to the knowledge of a current director
or officer of the Company.

                  (b) Except for applicable requirements of the Exchange Act,
the pre-merger notification requirements of the HSR Act, and the filing and
recordation of appropriate merger or other documents as required by Delaware
Law, or "blue sky" laws of various states, the Company is not required to submit
any notice, report, permit, authorization or other filing with any Governmental
Authority in connection with the execution, delivery or performance of this
Agreement. No waiver, consent, approval or authorization of any Governmental
Authority is required to be obtained or made by the Company in connection with
its execution, 



                                       19
<PAGE>

delivery or performance of this Agreement, the Option Agreement or the
Stockholders Agreement.

                  SECTION 4.5.  SEC Filings; Financial Statements.

                  (a) The Company has filed all forms, reports and documents
required to be filed with the SEC since January 1, 1997 (as such documents have
been amended since the time of their filing, collectively, the "SEC Reports").
As of their respective dates, or, if amended, as of the date of the last such
amendment, the SEC Reports, including without limitation, any financial
statements or schedules included therein (i) complied in all material respects
with the applicable requirements of the Exchange Act and the Securities Act of
1933, as amended (the "Securities Act"), as the case may be, and the applicable
rules and regulations of the SEC promulgated thereunder, and (ii) did not
contain any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary in order to make the statements
therein, in the light of the circumstances under which they were made, not
misleading. The Company has heretofore furnished or made available to the
Purchaser a complete and correct copy of any amendments or modifications which
have not yet been filed with the SEC to executed agreements, documents or other
instruments which previously had been filed by the Company with the SEC pursuant
to the Securities Act or the Exchange Act.

                  (b) The consolidated financial statements of the Company
contained in the SEC Reports (the "Financial Statements") have been prepared
from, and are in accordance with the books and records of the Company, comply in
all material respects with applicable accounting requirements and with the
published rules and regulations of the SEC with respect thereto, have been
prepared in accordance with United States generally accepted accounting
principles ("GAAP") applied on a consistent basis throughout the periods
involved (except as may be indicated in the notes thereto) and fairly presented
the consolidated financial position of the Company and the consolidated results
of operation, cash flows and changes in financial position of the Company as of
and for the periods indicated, except that the unaudited interim financial
statements were or are subject to normal and recurring year-end adjustments.

                  SECTION 4.6.  Undisclosed Liabilities.

                  (a) Except (a) as disclosed in the Financial Statements and
(b) for liabilities and obligations (i) incurred in the ordinary course of
business and consistent with past practice since September 30, 1998, (ii)
pursuant to the terms of this Agreement, or (iii) as disclosed on Schedule 4.6
of the Disclosure Schedule, the Company has no material liabilities or
obligations of any nature, whether or not accrued, contingent or otherwise, that
would be required by GAAP to be reflected in, reserved against or otherwise
described in the balance sheet of 



                                       20
<PAGE>

the Company included in the Financial Statements (including the notes thereto)
or which would have a Material Adverse Effect.

                  SECTION 4.7.  Absence of Certain Changes or Events.

                  Since December 31, 1997, except as disclosed on Schedule 4.7
  of the Disclosure Schedule or in the SEC Reports filed prior to the date
  hereof, the Company has conducted its business only in the ordinary and usual
  course in accordance with past practice, and:

                  (a) there have not occurred any events or changes (including
the incurrence of any liabilities of any nature, whether or not accrued,
contingent or otherwise) that have had, or are reasonably likely in the future
to have, individually or in the aggregate, a Material Adverse Effect; and

                  (b) the Company has not taken any action which would have been
prohibited under Section 5.2 hereof.

                  SECTION 4.8. Litigation. Except as disclosed in the SEC
Reports filed prior to the date hereof, or as disclosed on Schedule 4.8 of the
Disclosure Schedule, there are no claims, actions, suits, proceedings
(including, without limitation, arbitration proceedings) or other alternative
dispute resolution proceedings, or investigations pending or, to the knowledge
of the Company, threatened against the Company, or any properties or rights of
the Company, before any Governmental Authority that, either individually or in
the aggregate, would be reasonably likely to have a Material Adverse Effect or
prevent or delay the consummation of the Offer or the Merger. As of the date
hereof, the Company is not subject to any outstanding court order, judgment,
injunction or decree.

                  SECTION 4.9.  Employee Benefit Plans.

                  (a) Schedule 4.9(a) of the Disclosure Schedule sets forth: (i)
all "employee benefit plans", as defined in Section 3(3) of the Employee
Retirement Income Security Act of 1974, as amended ("ERISA"), and all other
material employee benefit arrangements or payroll practices, including, without
limitation, any such arrangements or payroll practices providing severance pay,
sick leave, vacation pay, salary continuation for disability, retirement
benefits, deferred compensation, bonus pay, incentive pay, stock options,
hospitalization insurance, medical insurance, life insurance, scholarships or
tuition reimbursements, maintained by the Company or to which the Company is
obligated to contribute thereunder for current or former employees or directors
of the Company (the "Employee Benefit Plans"). Neither the Company nor any trade
or business (whether or not incorporated) which is or has ever been under
control or treated as a single employer with the Company under Section 414(b),
(c), (m), or (o) of the Internal Revenue Code of 1986, as amended (the "Code")
("ERISA Affiliate") has ever maintained, 



                                       21
<PAGE>

contributed to or been obligated to contribute to an "employee pension plan", as
defined in Section 3(2) of ERISA.

                  (b) All contributions (including all employer contributions
and employee salary reduction contributions) required to have been made under
any of the Employee Benefit Plans or by law to any funds or trusts established
thereunder or in connection therewith have been made by the due date thereof
(including any valid extension), and all contributions for any period ending on
or before the Effective Time which are not yet due will have been paid or
accrued on or prior to the Effective Time.

                  (c) True, correct and complete copies of the following
documents, with respect to each of the Employee Benefit Plans and Pension Plans,
have been delivered or made available to the Purchaser by the Company: (i) all
plans and related trust documents, and amendments thereto; (ii) the most recent
Forms 5500; (iii) the last Internal Revenue Service determination letter; (iv)
summary plan descriptions; (v) the most recent actuarial report relating to the
Employee Benefit Plans and the Pension Plans; and (vi) written descriptions of
all non-written agreements relating to the Employee Benefit Plans.

                  (d) There are no pending actions, claims or lawsuits which
have been asserted or instituted against the Employee Benefit Plans, the assets
of any of the trusts under such plans or the plan sponsor or the plan
administrator, or against any fiduciary of the Employee Benefit Plans with
respect to the operation of such plans (other than routine benefit claims), nor
does the Company have knowledge of facts which could form a valid basis for any
such claim or lawsuit.

                  (e) The Employee Benefit Plans have been maintained, in all
material respects, in accordance with their terms and with all provisions of
ERISA and the Code (including rules and regulations thereunder) and other
applicable federal and state laws and regulations, and neither the Company, any
Subsidiary of the Company nor any "party in interest" or "disqualified Person"
with respect to the Employee Benefit Plans has engaged in a "prohibited
transaction" within the meaning of Section 406 of ERISA or 4975 of the Code. No
fiduciary to any Employee Benefit Plan has any current liability for breach of
fiduciary duty or any other failure to act or comply in connection with the
administration or investment of the assets of any Employee Benefit Plan.

                  (f) None of the Employee Benefit Plans provide retiree life or
retiree health benefits except as may be required under Section 4980B of the
Code or Section 601 of ERISA and at the expense of the participant or the
participant's beneficiary. The Company and the ERISA Affiliates have at all
times complied with the notice and health care continuation requirements of
Section 4980B of the Code and Sections 601 through 608 of ERISA.

                                       22


<PAGE>

                  (g) Except as disclosed on Schedule 4.9(g) of the Disclosure
Schedule, neither the execution and delivery of this Agreement nor the
consummation of the transactions contemplated hereby will (i) result in any
payment becoming due to any employee or director (current, former or retired) of
the Company, (ii) increase any benefits otherwise payable under any Employee
Benefit Plan, (iii) result in the acceleration of the time of payment or vesting
of any benefits under any Employee Benefit Plan or (iv) constitute a "change in
control" or similar event under any Employee Benefit Plan. Except as disclosed
on Schedule 4.9(g) of the Disclosure Schedule, no payment under any Employee
Benefit Plan will fail to be deductible by reason of Section 280G of the Code.

                  (h) Except as disclosed on Schedule 4.9(h) of the Disclosure
Schedule, no stock or other security issued by the Company or any Affiliate of
the Company forms or has formed a material part of the assets of any Employee
Benefit Plan.

                  (i) There has been no "mass layoff" or "plant closing" as
defined by the Worker Adjustment and Retraining Notification Act or any similar
state or local "plant closing" law with respect to the current or former
employees of the Company.

                  SECTION 4.10. Proxy Statement. The Proxy Statement, if any (or
any amendment thereof or supplement thereto), to be sent to the stockholders of
the Company in connection with the Special Meeting or the information statement,
if any, to be sent to such stockholders, as appropriate, will comply in all
material respects with the applicable requirements of the Exchange Act and the
rules and regulations thereunder. The Proxy Statement will not, at the time the
Proxy Statement is mailed to stockholders and at the time of the Special
Meeting, contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary in order to make the
statements therein, in light of the circumstances under which they were made,
not misleading, or necessary to correct any statement in any earlier
communication with respect to the solicitation of proxies for the meeting of the
Company's stockholders held for approval of the Merger which has become false or
misleading, except that no representation or warranty is being made by the
Company with respect to any information expressly concerning the Purchaser,
Mannesmann AG ("Mannesmann") or Olivetti S.p.A. ("Olivetti"), which has been
supplied by such entities or which the Purchaser has had a prior opportunity to
review.

                  SECTION 4.11. Brokers. Except as to Wasserstein Perella and
Donaldson Lufkin & Jenrette Securities Corporation ("DLJ"), no broker, finder or
investment banker or other financial advisor is entitled to any brokerage,
finder's or other fee or commission in connection with the transactions
contemplated by this Agreement based upon arrangements made by or on behalf of
the Company. The Company has heretofore furnished 



                                       23
<PAGE>

to the Purchaser true and complete information concerning the financial
arrangements between the Company and Wasserstein Perella and DLJ pursuant to
which such firms would be entitled to any payment as a result of the
transactions contemplated by this Agreement.

                  SECTION 4.12.  Conduct of Business; Licenses and Permits.

                  (a) Except as disclosed in the SEC Reports filed prior to the
date hereof, the business of the Company (which shall be deemed to exclude the
operations of Omnitel Sistemi Radiocellulari Italiani S.p.A. and Omnitel Pronto
Italia S.p.A. (collectively, "Omnitel")) is not being conducted in default or
violation of (with or without due notice or lapse of time or both) any term,
condition or provision of (i) its Restated Certificate of Incorporation or
By-Laws, or (ii) any note, bond, mortgage, indenture, contract, agreement, lease
or other instrument or agreement of any kind to which the Company is a party or
by which the Company or any of its properties or assets may be bound (each, a
"Company Agreement"), or (iii) any Federal, state, local or foreign statute,
law, ordinance, rule, regulation, judgment, decree, order, concession, grant,
franchise, permit or license or other governmental authorization or approval
applicable to the Company, and no notice, charge, claim, action or assertion has
been received by the Company or has been filed, commenced or, to the Company's
knowledge, threatened against the Company alleging any such violation except,
with respect to the foregoing clauses (ii) and (iii), defaults or violations
that would not, individually or in the aggregate, have a Material Adverse
Effect. To the Company's knowledge, no other party to any Company Agreement is
in default or violation in respect thereof, and no event has occurred which,
with due notice or lapse of time or both, would constitute such a default or
violation. The Company has delivered to the Purchaser or its representatives
true and complete originals or copies of all the Company Agreements.

                  (b) Schedule 4.12 of the Disclosure Schedule sets forth a true
and complete list of all licenses, permits, franchises, authorizations and
approvals issued or granted to the Company by any Governmental Authority (the
"Licenses and Permits"), and all pending applications therefor. Such list
contains a summary description of each such item and, where applicable,
specifies the date issued, granted or applied for, the expiration date and the
current status thereof. Each License and Permit has been duly obtained, is valid
and in full force and effect, and is not subject to any pending or, to the
Company's knowledge, threatened administrative or judicial proceeding to revoke,
cancel, suspend or declare such License and Permit invalid in any respect. To
the Company's knowledge, the Licenses and Permits are sufficient and adequate in
all material respects to permit the continued lawful conduct of the Company's
business (which shall be deemed to exclude the operations of Omnitel) in 



                                       24
<PAGE>

the manner now conducted and as proposed to be conducted, and none of the
operations of the Company are being conducted in a manner that violates in any
material respect any of the terms or conditions under which any License and
Permit was granted. Except as disclosed on Schedule 4.12 of the Disclosure
Schedule, no such License and Permit will be affected by, or terminate or lapse
by reason of, the transactions contemplated by this Agreement.

                  SECTION 4.13. Compliance with Law. Except as disclosed on
Schedule 4.8 (as applicable) and Schedule 4.13 of the Disclosure Schedule, the
operations of the Company (which shall be deemed to exclude the operations of
Omnitel) have been conducted in accordance with all applicable laws,
regulations, orders and other requirements of all Governmental Authorities
having jurisdiction over the Company and its assets, properties and operations.
Except as disclosed on Schedule 4.8 (as applicable) and Schedule 4.13 of the
Disclosure Schedule, the Company has not received notice of any violation of any
such law, regulation, order or other legal requirement, and is not in default
with respect to any order, writ, judgment, award, injunction or decree of any
Governmental Authority. The Company has no knowledge of any proposed change in
any such laws, rules or regulations (other than laws of general applicability)
that would materially and adversely affect the transactions contemplated by this
Agreement or would have a Material Adverse Effect. To the Company's knowledge,
neither the Company nor any director, officer, agent, employee or other Person
associated with or acting on behalf of the Company has: used any funds for any
unlawful contribution, gift, entertainment or other unlawful contribution, gift,
entertainment or other unlawful expense relating to political activity; made any
direct or indirect unlawful payment to any foreign or domestic government
official or employee from corporate funds; violated or is in violation of any
provision of the Foreign Corrupt Practices Act of 1977; or made any bribe,
rebate, payoff, influence payment, kickback or other unlawful payment.

                  SECTION 4.14.  Taxes.  Except as disclosed on Schedule 4.14 of
the Disclosure Schedule:

                  (a) Except as would not, either individually or in the
aggregate, have a Material Adverse Effect: (i) the Company has timely filed with
the appropriate Tax Authority (as defined below) all Tax Returns (as defined
below) required to be filed by or with respect to the Company, and such Tax
Returns are true, correct and complete in all material respects; (ii) all Taxes
(as defined below) due and payable by the Company with respect to the taxable
years or other taxable periods ending on or prior to the Effective Time have
been, or on or prior to the Effective Time will be, paid or adequately disclosed
and fully provided for; (iii) no Audits (as defined below) are pending or, to
the Company's knowledge, threatened with regard to any Taxes or Tax Returns of
the Company, and there are no outstanding deficiencies 



                                       25
<PAGE>

or assessments asserted or proposed; (iv) no issue has been raised by any Taxing
Authority in any Audit of the Company that if raised with respect to any other
period not so audited could be expected to result in a proposed deficiency of
any period not so audited; (v) there are no outstanding agreements, consents or
waivers extending the statutory period of limitations applicable to the
assessment of any Taxes or deficiencies against the Company, and the Company is
not a party to any agreement providing for the allocation or sharing of Taxes;
(vi) no powers of attorney with respect to Taxes of the Company have been
executed that will be outstanding as of the Effective Time; (vii) there are no
Liens for Taxes upon any of the assets of the Company, except for Liens for
Taxes not yet due and payable for which adequate reserves have been established
on the Company's balance sheet at September 30, 1998 included in the Company's
Quarterly Report on Form 10-Q filed with the SEC prior to the date hereof (the
"Balance Sheet") in accordance with GAAP and (viii) the Company has complied in
all respects with all applicable laws, rules and regulations relating to the
payment and withholding of Taxes (including, without limitation, withholding of
Taxes pursuant to Sections 1441 and 1442 of the Code or similar provisions under
any foreign laws) and has, within the time and in the manner prescribed by law,
withheld and paid over to the proper Tax Authorities all amounts required to be
so withheld and paid over under applicable laws.

                  (b) The Company has not filed a consent to the application of
Section 341(f) of the Code.

                  (c) The Company is not and has not been a United States real
property holding company (as defined in Section 897(c)(2) of the Code) during
the applicable period specified in Section 897(c)(1)(ii) of the Code.

                  (d) No indebtedness of the Company is "corporate acquisition
indebtedness" within the meaning of Section 279(b) of the Code.

                  (e) The Company has not entered into any agreements that would
result in the disallowance of any tax deductions pursuant to Section 280G of the
Code.

                  (f) Subject to the Purchaser's consent under Section 6.10 of
this Agreement, the Company has made or will by the Effective Time make, a valid
"qualified electing fund" election ("QEF Election"), pursuant to Section 1295 of
the Code with respect to all stock which it owns, or is considered to own, in
any corporation which meets the definition of "passive foreign investment
company" ("PFIC") set forth in Section 1297 of the Code. Such QEF Election or
elections are, or will be, effective for all periods in which the Company is
considered to own the stock to which the election relates. Any PFIC is, or will
be, a qualified electing fund with respect to the Company for all taxable years
that the Company has held the PFIC stock.



                                       26
<PAGE>

                  (g) The Company has not made any change in accounting methods
or received a ruling from any taxing authority, other than with respect to a
PFIC, likely to have a material adverse effect on the Company.

                  (h) The deductibility of compensation paid by the Company will
not be limited by Section 162(m) of the Code.

                  (i) All transactions that could give rise to an understatement
of the federal income tax liability of the Company within the meaning of Section
6662(d) of the Code are adequately disclosed on Tax Returns in accordance with
Section 6662(d)(2)(B) of the Code and the taxpayer reasonably believed that the
tax treatment of such item was more likely than not to be the proper treatment.

                  (j) No excess loss accounts or deferred intercompany gains as
defined in the consolidated return regulations promulgated under the Code exist
with respect to the Company.

                  (k) For purposes of this Agreement, "Taxes" means any Federal,
state, local and foreign taxes, and other assessments of a similar nature
(whether imposed directly or through withholding), including any interest,
additions to tax, or penalties applicable thereto, imposed by any Tax Authority;
"Tax Authority" means the Internal Revenue Service and any other domestic or
foreign Governmental Authority responsible for the administration of any Taxes;
and "Audit" means any audit, assessment or other examination relating to Taxes
by any Tax Authority or any judicial or administrative proceedings relating to
Taxes.

                  (l) For purposes of this Agreement, "Tax Return" means any
return, report, information return or other document (including any related or
supporting information and, where applicable, profit and loss accounts and
balance sheets) with respect to Taxes.

                  SECTION 4.15. Intellectual Property. Schedule 4.15 of the
Disclosure Schedule contains a true and complete list of all (i) patents and
patent applications, (ii) trademark and service mark registrations and
applications, (iii) Computer Software (as defined below), (iv) copyright
registrations and applications, (v) material unregistered trademarks, service
marks and copyrights, and (vi) Internet domain names used or held for use in
connection with the business of the Company, together with all licenses related
to the foregoing.

                  (a) For purposes of this Agreement, "Computer Software" means
(i) any and all computer programs and applications consisting of sets of
statements and instructions to be used directly or indirectly in computer
software or firmware whether in source code or object code form, (ii) databases
and compilations, including without limitation any and all data and 



                                       27
<PAGE>

collections of data, whether machine readable or otherwise, (iii) all versions
of the foregoing including, without limitation, all screen displays and designs
thereof, and all component modules of source code or object code or natural
language code therefor, and whether recorded on papers, magnetic media or other
electronic or non-electronic device, (iv) all descriptions, flowcharts and other
work product used to design, plan, organize and develop any of the foregoing,
(v) all documentation including, without limitation, all technical and user
manuals and training materials relating to the foregoing, and all Internet
domain names and content contained on all World Wide Web sites of the Company or
any Subsidiary; provided, however, that "Computer Software" shall not include
(x) "shrink-wrap" or other similar off-the-shelf software generally available or
(y) software provided to, or used to provide services to the Company by NTL
Incorporated ("NTL"), Corecomm Limited ("Corecomm") or Cellular Communications
of Puerto Rico, Inc. ("CCPR").

                  (b) Except as disclosed on Schedule 4.15 of the Disclosure
Schedule, the Company is the sole and exclusive owner of all patents, patent
applications, patent rights, copyrights, trademarks, trademark rights, trade
names, trade name rights, service marks, service mark rights and all goodwill of
the business associated therewith, trade secrets, registrations for and
applications for registration of trademarks, service marks and copyrights,
technology and know-how, Computer Software other than off-the-shelf
applications, and other confidential or proprietary rights and information and
all technical and user manuals and documentation made or used in connection with
any of the foregoing, used or held for use anywhere in the world in connection
with the business of the Company (which shall be deemed to exclude the
operations of Omnitel) as currently conducted (collectively, the "Intellectual
Property"), free and clear of all Liens. The Liens disclosed on Schedule 4.15 of
the Disclosure Schedule do not materially detract from the value of the
Intellectual Property subject thereto and do not materially impair the
operations of the Company.

                  (c) Except disclosed on Schedule 4.15 of the Disclosure
Schedule, all grants, registrations and applications for Intellectual Property
that are used in the business of the Company as currently conducted (i) are
valid, subsisting, in proper form and enforceable, and have been duly
maintained, including the submission of all necessary filings and fees in
accordance with the legal and administrative requirements of the appropriate
jurisdictions, and (ii) have not lapsed, expired or been abandoned, and no
application or registration therefor is the subject of any legal or governmental
proceeding before any governmental, registration or other authority in any
jurisdiction.

                  (d) The Company owns or has the valid right to use all of the
material Intellectual Property used by it or held for use by it in connection
with its business (which shall be deemed to 



                                       28
<PAGE>

exclude the operations of Omnitel). To the Company's knowledge, there are no
conflicts with or infringements of any Intellectual Property by any third party.
The business of the Company (which shall be deemed to exclude the operations of
Omnitel) as currently conducted does not conflict with or infringe in any way on
any proprietary right of any third party. There is no claim, suit, action or
proceeding pending or, to the Company's knowledge, threatened against the
Company (i) alleging any such conflict or infringement with any third party's
proprietary rights, or (ii) challenging the ownership, use, validity or
enforceability of the Intellectual Property.

                  (e) The Computer Software used by the Company in the conduct
of its business (which shall be deemed to exclude the operations of Omnitel) was
either: (i) developed by employees of the Company within the scope of their
employment; (ii) developed on behalf of the Company by a third party, and all
ownership rights therein have been assigned or otherwise transferred to or
vested in the Company, pursuant to written agreements; or (iii) as disclosed on
Schedule 4.15 of the Disclosure Schedule, licensed or acquired from a third
party pursuant to a written license, assignment, or other contract which is in
full force and effect and of which the Company is not in material breach. Except
as disclosed on Schedule 4.15 of the Disclosure Schedule, (x) no third party has
had access to any of the source codes for any of the Computer Software described
in clause (i) or (ii) hereof and (y) no act has been done or omitted to be done
by the Company to impair or dedicate to the public or entitle any Governmental
Authority to hold abandoned any of such Computer Software.

                  (f) Except as disclosed on Schedule 4.15 of the Disclosure
Schedule, all consents, filings, and authorizations by or with Governmental
Authorities or third parties necessary with respect to the consummation of the
transactions contemplated by this Agreement as they may affect the Intellectual
Property have been obtained.

                  (g) The Company has not entered into any material consent,
indemnification, forbearance to sue, settlement agreement or cross-licensing
arrangement with any Person relating to the Intellectual Property or the
intellectual property of any third party other than as may be contained in the
license agreements disclosed on Schedule 4.15 of the Disclosure Schedule.

                  (h) Except as disclosed on Schedule 4.15 of the Disclosure
Schedule, the Company is not, nor will it be as a result of the execution and
delivery of this Agreement or the performance of its obligations under this
Agreement, in breach of any license, sublicense or other agreement relating to
the Intellectual Property.

                  (i) No former or present employees, officers or directors of
the Company hold any right, title or interest, 



                                       29
<PAGE>

directly or indirectly, in whole or in part, in or to any Intellectual Property.

                  SECTION 4.16. Employment Matters. No employee of the Company
has entered into a Company Agreement and the employment of all employees of the
Company may be terminated at will. The Company has not experienced any strikes,
collective labor grievances, other collective bargaining disputes or claims of
unfair labor practices in the last five years. To the Company's knowledge, there
is no organizational effort presently being made or threatened by or on behalf
of any labor union with respect to employees of the Company.
                  SECTION 4.17. Vote Required. The affirmative vote of the
holders of a majority of the outstanding shares of Company Common Stock is the
only vote of the holders of any class or series of the Company's capital stock
which may be necessary to approve this Agreement and the transactions
contemplated hereby, including the Merger.

                  SECTION 4.18.  Environmental Matters.

                  (a) Except as disclosed on Schedule 4.18(a) of the Disclosure
Schedule: (i) the Company is and has been in compliance with all applicable
laws, statutes, rules, regulations, common law, ordinances, decrees, orders,
judgments, permits, licenses, registration and other governmental authorizations
or approvals or other legal or regulatory requirements relating to pollution or
the protection of human health, natural resources or the environment
("Environmental Laws"), and there are no outstanding allegations by any Person
that the Company is not or has not been in compliance with any Environmental
Laws, and (ii) the Company currently holds all permits, licenses, registrations
and other governmental authorizations or approvals (including without limitation
exemptions, waivers, and the like) and financial assurances required under any
Environmental Laws for the Company to operate its business.

                  (b) Except as disclosed on Schedule 4.18(b) of the Disclosure
Schedule, (i) there is no asbestos or asbestos-containing materials in or on any
real property, buildings, structures or components thereof currently owned,
leased or operated by the Company, and (ii) there are and have been no
underground or aboveground storage tanks (whether or not required to be
registered under any applicable law), dumps, landfills, lagoons, surface
impoundments, sumps, injection wells or other disposal or storage sites or
locations in or on any property currently owned, leased or operated by the
Company.

                  (c) Except as disclosed on Schedule 4.18(c) of the Disclosure
Schedule, (i) the Company has not received (x) any communication from any Person
stating or alleging that the Company is or may be liable under any Environmental
Law 



                                       30
<PAGE>

(including without limitation the Comprehensive Environmental Response,
Compensation, and Liability Act of 1980, as amended, and any foreign or state
analog thereto) with respect to any actual or alleged environmental
contamination, (y) any request for information under any Environmental Law from
any Governmental Authority or any other Person with respect to any actual or
alleged environmental contamination or (z) notice of any actual or alleged
violation of Environmental Law, (ii) none of the Company, any Governmental
Authority or any other Person is conducting or has conducted (or is proposing or
threatening to conduct) any environmental remediation or investigation which
could result in a material liability of the Company under any Environmental Law
or otherwise require disclosure in any SEC Report, and (iii) the Company is not
subject to any judicial or administrative proceeding alleging a violation or
liability under any Environmental Law.

                  (d) Except as disclosed on Schedule 4.18(d) of the Disclosure
Schedule, to the Company's knowledge, (i) no party to any Company Agreement and
no other Person whose ability, in whole or in part, may be attributable to or
asserted against the Company, has received any notice, claim, demand or request
for information from any Governmental Authority or any other Person with respect
to any actual or potential liability under any Environmental Law, and (ii) no
event has occurred with respect to the Company or such parties which, with due
notice or the lapse of time or both, would give rise to any liability to the
Company under any Environmental Law.

                  SECTION 4.19. Real Property. The Company occupies space in New
York and London pursuant to an agreement with NTL. As of the date hereof, the
Company does not own or lease, have an option to purchase or lease or have any
interest in any real property.

                  SECTION 4.20. Title and Condition of Properties. The 
Company owns good and marketable title, free and clear of all Liens, to all 
of the personal property and assets shown on the Balance Sheet or acquired 
after September 30, 1998, except for (a) assets which have been disposed of 
to nonaffiliated third parties since September 30, 1998 in the ordinary 
course of business, (b) Liens reflected in the Balance Sheet, (c) Liens or 
imperfections of title which are not, individually or in the aggregate, 
material in character, amount or extent and which do not materially detract 
from the value or materially interfere with the present or presently 
contemplated use of the assets subject thereto or affected thereby, and (d) 
Liens for current Taxes not yet due and payable. All of the machinery, 
equipment and other tangible personal property and assets owned or used by 
the Company are in good condition and repair, except for ordinary wear and 
tear not caused by neglect, and are usable in the ordinary course of 
business, except for any matter otherwise covered by this sentence which does 
not have, individually or in the aggregate, a Material Adverse Effect. The 
personal property

                                       31
<PAGE>

and assets reflected on the Balance Sheet or acquired after September 30, 
1998, the rights under the Company Agreements and the Intellectual Property 
owned or used by the Company under valid licenses, collectively include all 
assets necessary to provide, produce, sell and license the services and 
products currently provided, produced, sold and licensed by the Company and 
to conduct the business of the Company as presently conducted or as currently 
contemplated to be conducted.

                  SECTION 4.21. Contracts. Each Company Agreement is legally
valid and binding and in full force and effect, except where failure to be
legally valid and binding and in full force and effect would not have a Material
Adverse Effect. Schedule 4.21 of the Disclosure Schedule sets forth a true and
complete list of (i) all material Company Agreements entered into by the Company
since December 31, 1997 and all amendments to any Company Agreements included as
an exhibit to the Company's Annual Report on Form 10-K for the fiscal year ended
December 31, 1997 and (ii) all non-competition agreements imposing restrictions
on the ability of the Company to conduct business in any jurisdiction or
territory.

                  SECTION 4.22. Potential Conflicts of Interest. Except as
disclosed on Schedule 4.22 of the Disclosure Schedule or in the SEC Reports
filed prior to the date hereof, since December 31, 1997, there have been no
transactions, agreements, arrangements or understandings between the Company and
its affiliates that would be required to be disclosed under Item 404 of
Regulation S-K under the Securities Act. Except as disclosed on Schedule 4.22 of
the Disclosure Schedule, no officer of the Company owns, directly or indirectly,
any interest in (excepting not more than 1% stock holdings for investment
purposes in securities of publicly held and traded companies) or is an officer,
director, employee or consultant of any Person which is a competitor, lessor,
lessee, customer or supplier of the Company; and no officer or director of the
Company (i) owns, directly or indirectly, in whole or in part, any Intellectual
Property which the Company is using or the use of which is necessary for the
business of the Company; (ii) has any claim, charge, action or cause of action
against the Company, except for claims for accrued vacation pay and accrued
benefits under the Employee Plans; (iii) has made, on behalf of the Company, any
payment or commitment to pay any commission, fee or other amount to, or to
purchase or obtain or otherwise contract to purchase or obtain any goods or
services from, any other Person of which any officer or director of the Company,
or, to the Company's knowledge, a relative of any of the foregoing, is a partner
or stockholder (except stock holdings solely for investment purposes in
securities of publicly held and traded companies); or (iv) owes any money to the
Company.

                  SECTION 4.23. Insurance. The Company has policies of insurance
and bonds of the type and in amounts customarily carried by Persons conducting
businesses or owning assets similar 



                                       32
<PAGE>

to those of the Company. There is no material claim pending under any of such
policies or bonds as to which coverage has been questioned, denied or disputed
by the underwriters of such policies or bonds. All premiums due and payable
under all such policies and bonds have been paid by the Company and the Company
is otherwise in compliance in all material respects with the terms of such
policies and bonds. The Company has no knowledge of any threatened termination
of, or material premium increase with respect to, any of such policies.

                  SECTION 4.24. Opinion of Financial Advisor. The Company has
received an opinion from Wasserstein Perella, financial advisor to the Company,
to the effect that the consideration to be received in the Offer and the Merger
by the holders of the Shares is fair to such holders from a financial point of
view, a copy of which opinion has been delivered to the Purchaser.

                  SECTION 4.25. Investment Company. The Company is not an
"investment company" within the meaning of the Investment Company Act of 1940,
as amended.

                  SECTION 4.26. Full Disclosure. The Company has not knowingly
failed to disclose to the Purchaser any facts material to the Company's
business, results of operations, assets, liabilities, financial condition or
prospects (in each case excluding those relating to Omnitel). No representation
or warranty by the Company in this Agreement and no statement by the Company in
any document referred to herein (including the Schedules and Exhibits hereto),
contains any untrue statement of a material fact or omits to state any material
fact necessary, in order to make the statement made herein or therein, in light
of the circumstances under which they were made, not misleading.

                                   ARTICLE V.

                     CONDUCT OF BUSINESS PENDING THE MERGER

                  SECTION 5.1. Acquisition Proposals. The Company will notify
the Purchaser immediately, but in any event within 24 hours, if any proposals,
inquiries or expressions of interest are received by, any information is
requested from, or any negotiations or discussions are sought to be initiated or
continued with the Company or its representatives, in each case in connection
with any Takeover Proposal (as defined below) or the possibility or
consideration of making a Takeover Proposal ("Takeover Proposal Interest")
indicating, in connection with such notice, the name of the Person indicating
such Takeover Proposal Interest and the terms and conditions of any proposals or
offers. The Company agrees that it will immediately cease and cause to be
terminated any existing activities, discussions or negotiations with any parties
conducted heretofore with respect to any Takeover Proposal Interest. The Company
agrees that it will take the necessary steps promptly to inform the Persons




                                       33
<PAGE>

referred to in the first sentence hereof of the obligations undertaken in this
Section 5.1. The Company agrees that it shall keep the Purchaser informed, on a
current basis, of the status and terms of any Takeover Proposal Interest. As
used in this Agreement, "Takeover Proposal" shall mean any tender or exchange
offer involving the Company, any proposal for a merger, consolidation or other
business combination involving the Company, any proposal or offer to acquire in
any manner a significant equity interest in, or a significant portion of the
business or assets of, the Company (other than immaterial or insubstantial
assets or inventory in the ordinary course of business or assets held for sale),
any proposal or offer with respect to any recapitalization or restructuring with
respect to the Company or any proposal or offer with respect to any other
transaction similar to any of the foregoing with respect to the Company other
than pursuant to the transactions to be effected pursuant to this Agreement.

                  SECTION 5.2. Conduct of Business by the Company Pending the
Merger. The Company covenants and agrees that, (i) except as expressly
contemplated by this Agreement, the Option Agreement or the Stockholders
Agreement, or (ii) as disclosed on Schedule 5.2 of the Disclosure Schedule, or
(iii) as agreed in writing by the Purchaser, after the date hereof, and prior to
the time the directors of the Purchaser have been elected to and shall
constitute a majority of the Board of Directors pursuant to Section 1.3 (the
"Appointment Date"):

                  (a) the business of the Company shall be conducted only in the
ordinary and usual course and, to the extent consistent therewith, the Company
shall use its best reasonable efforts to preserve its business organization
intact and maintain its existing relations with customers, suppliers, employees,
creditors and business partners;

                  (b) the Company will not, directly or indirectly, (i) except
upon exercise of stock options or other rights to purchase shares of Company
Common Stock pursuant to the Option Plans outstanding on the date hereof or upon
exercise of outstanding Warrants or conversion of Voting Debt, issue, sell,
transfer or pledge or agree to sell, transfer or pledge any treasury stock of
the Company beneficially owned by it, (ii) amend its Restated Certificate of
Incorporation or Bylaws or similar organizational documents; or (iii) split,
combine or reclassify the outstanding Shares;

                  (c) the Company shall not: (i) declare, set aside or pay any
dividend or other distribution payable in cash, stock or property with respect
to its capital stock; (ii) issue, sell, pledge, dispose of or encumber any
additional shares of, or securities convertible into or exchangeable for, or
options, warrants, calls, commitments or rights of any kind to acquire, any
shares of capital stock of any class of the Company, other than shares of
Company Common Stock reserved for issuance on the 



                                       34
<PAGE>

date hereof pursuant to the exercise of Options or Warrants or conversion of
Voting Debt outstanding on the date hereof; (iii) transfer, lease, license,
sell, mortgage, pledge, dispose of, or encumber any assets other than in the
ordinary and usual course of business and consistent with past practice, or
incur or modify any indebtedness or other liability, other than in the ordinary
and usual course of business and consistent with past practice; or (iv) redeem,
purchase or otherwise acquire directly or indirectly any of its capital stock;

                  (d) the Company shall not: (i) grant any increase in the
compensation payable or to become payable by the Company to any of its executive
officers; (ii)(A) adopt any new, or (B) amend or otherwise increase, or
accelerate the payment or vesting of the amounts payable or to become payable
under, any existing bonus, incentive compensation, deferred compensation,
severance, profit sharing, stock option, stock purchase, insurance, pension,
retirement or other employee benefit plan, agreement or arrangement; or (iii)
enter into any employment or severance agreement with or, except in accordance
with the existing written policies of the Company, grant any severance or
termination pay to any officer, director or employee of the Company;

                  (e) the Company shall not modify, amend or terminate any of
its material contracts or waive, release or assign any material rights or
claims, except in the ordinary course of business and consistent with past
practice;

                  (f) the Company shall not permit any insurance policy naming
it as a beneficiary or a loss payable payee to be cancelled or terminated
without notice to the Purchaser, except in the ordinary course of business and
consistent with past practice;

                  (g) the Company shall not (i) incur or assume any long-term
debt, or, except in the ordinary course of business, incur or assume any
short-term indebtedness in amounts not consistent with past practice; (ii)
assume, guarantee, endorse or otherwise become liable or responsible (whether
directly, contingently or otherwise) for the obligations of any other Person,
except in the ordinary course of business and consistent with past practice;
(iii) other than ordinary course expense advances, make any loans, advances or
capital contributions to, or investments in, any other Person; or (iv) enter
into any material commitment or transaction (including, but not limited to, any
borrowing, capital expenditure or purchase, sale or lease of assets or real
estate);

                  (h) the Company shall not (i) change any of the accounting
methods used by it unless required by GAAP; or (ii) other than related to a QEF
Election, make any material Tax election, change any material Tax election
already made, adopt any material Tax accounting method, change any material Tax
accounting method unless required by GAAP, enter into any closing 



                                       35
<PAGE>

agreement, settle any material Tax claim or assessment or consent to any
material Tax claim or assessment or any waiver of the statute of limitations for
any such material claim or assessment;

                  (i) the Company shall not pay, discharge or satisfy any
claims, liabilities or obligations (absolute, accrued, asserted or unasserted,
contingent or otherwise), other than the payment, discharge or satisfaction of
any such claims, liabilities or obligations, in the ordinary course of business
and consistent with past practice, or claims, liabilities or obligations
reflected or reserved against in, or contemplated by, the consolidated financial
statements (or the notes thereto) of the Company;

                  (j) the Company shall not adopt a plan of complete or partial
liquidation, dissolution, merger, consolidation, restructuring, recapitalization
or other reorganization of the Company (other than the Merger);

                  (k) the Company shall not take, or agree to commit to take,
any action that would, or is reasonably likely to, result in any of the
conditions to the Merger set forth in Article VII not being satisfied, or would
make many representation or warranty of the Company contained herein inaccurate
in any respect at, or as of any time prior to, the Effective Time, or that would
materially impair the ability of the Company to consummate the Merger in
accordance with the terms hereof or materially delay such consummation;

                  (l) the Company shall not redeem the Rights or terminate,
amend or otherwise modify the Rights Agreement prior to the consummation of the
Offer unless required to do so by order of a court of competent jurisdiction;
and

                  (m) the Company shall not enter into an agreement, contract,
commitment or arrangement to do any of the foregoing, or to authorize,
recommend, propose or announce an intention to do any of the foregoing.

                  SECTION 5.3.  No Solicitation; Board Recommendation.

                  (a) The Company will not, and will use its best efforts to
ensure that its officers, directors, employees, investment bankers, attorneys,
accountants and other agents do not, directly or indirectly: (i) initiate,
solicit or encourage, or take any action to facilitate (including by the
furnishing of information) the making of, any offer or proposal which
constitutes or is reasonably likely to lead to any Takeover Proposal, (ii) enter
into any agreement with respect to any Takeover Proposal, or (iii) in the event
of an unsolicited Takeover Proposal for the Company engage in negotiations or
discussions with, or provide any information or data to, any Person (other than
the Purchaser, any of its affiliates or representatives and except for
information which has been 



                                       36
<PAGE>

previously publicly disseminated by the Company) relating to any Takeover
Proposal; provided however, that nothing contained in this Section 5.3 or any
other provision hereof shall prohibit the Company or the Board of Directors from
(i) taking and disclosing to the Company's stockholders a position with respect
to a tender or exchange offer by a third party pursuant to Rules 14d-9 and 14e-2
promulgated under the Exchange Act or (ii) making such disclosure to the
Company's stockholders as, in the good faith judgment of the Board of Directors
after receiving advice from outside counsel, the Company deems necessary to
comply with its fiduciary duties to the Company's stockholders under applicable
law.

                  (b) Notwithstanding the foregoing, prior to the acceptance of
Shares pursuant to the Offer, the Company may furnish information concerning its
business, properties or assets to any Person pursuant to appropriate
confidentiality agreements, and may negotiate and participate in discussions and
negotiations with such Person concerning a Takeover Proposal (provided that the
Company shall not agree to any exclusive right to negotiate with the Company) if
(x) such entity or group has on an unsolicited basis submitted a bona fide
written proposal to the Company relating to any such transaction that provides
for consideration which the Board of Directors determines in good faith, after
receiving advice from a nationally recognized investment banking firm, is more
favorable to the Company and its stockholders than the Offer and the Merger
(taking into account all relevant factors) and which is not conditioned upon
obtaining additional financing not fully committed at such time or, in the view
of a nationally recognized investment banking firm, is reasonably likely to be
obtained under then existing market conditions, and (y) in the opinion of the
Board of Directors, after receiving advice from outside legal counsel to the
Company, the failure to provide such information or access or to engage in such
discussions or negotiations would likely cause the Board of Directors to breach
its fiduciary duties to the Company's stockholders under applicable law (a
Takeover Proposal which satisfies clauses (x) and (y) being referred to herein
as a "Superior Proposal"). The Company shall promptly provide to the Purchaser
any nonpublic information regarding the Company provided to any other party
which was not previously provided to the Purchaser. If the Company, after
consultation with outside legal counsel, believes that a breach of its fiduciary
duties to the Company's stockholders would likely occur, the Board of Directors
may (subject to this and the following sentences) inform the Company's
stockholders that it no longer believes that the Offer and the Merger is
advisable and no longer recommends approval (a "Subsequent Determination"), but
only at a time that is after the fifth business day following the Purchaser's
receipt of written notice advising the Purchaser that the Board of Directors has
received a Superior Proposal specifying the material terms and conditions of
such Superior Proposal (and including a copy thereof with all accompanying
documentation), identifying the Person making such Superior Proposal and stating




                                       37
<PAGE>

that it intends to make a Subsequent Determination. Notwithstanding anything
herein to the contrary, prior to and including such fifth day the Company may
make such public disclosure that is in its view required under the Federal
securities laws, as evidenced by an opinion from outside counsel to the Company,
a copy of which shall be provided to Purchaser prior to such disclosure. After
providing such notice, the Company shall provide a reasonable opportunity to the
Purchaser to make such adjustments in the terms and conditions of this Agreement
and/or of the Option Agreement as would enable the Company to proceed with its
recommendation to its stockholders without a Subsequent Determination. At any
time after five business days following notification to the Purchaser of the
Company's intent to do so and if the Company has otherwise complied with the
terms of this Section 5.3(b), the Board of Directors may terminate this
Agreement pursuant to clause (ii) of Section 8.1(f) and enter into an agreement
with respect to a Superior Proposal; provided that the Company shall,
concurrently with entering into such agreement, pay or cause to be paid to the
Purchaser the Termination Fee (as defined in Section 8.2(b) hereof).
Notwithstanding any other provision of this Agreement, the Company shall submit
this Agreement to its stockholders, whether or not the Board of Directors makes
a Subsequent Determination.

                  (c) Except as set forth in Section 5.3(b), neither the Board
of Directors nor any committee thereof shall (i) withdraw or modify, or propose
to withdraw or modify, in a manner adverse to the Purchaser, the approval or
recommendation by the Board of Directors or any such committee of the Offer,
this Agreement or the Merger, (ii) approve or recommend, or propose to approve
or recommend, any Takeover Proposal or (iii) enter into any agreement with
respect to any Takeover Proposal.

                                   ARTICLE VI.

                              ADDITIONAL AGREEMENTS

                  SECTION 6.1. Proxy Statement. If required by the Exchange Act,
as promptly as practicable after the consummation of the Offer, the Company
shall prepare and file with the SEC, and shall use all reasonable efforts to
have cleared by the SEC, and promptly thereafter shall mail to stockholders, the
Proxy Statement. Except as set forth in Section 5.3(b), the Proxy Statement
shall contain the recommendation of the Board of Directors in favor of the
Merger.

                  SECTION 6.2. Meeting of Stockholders of the Company. At the
Special Meeting, if any, the Company shall use its best efforts to solicit from
stockholders of the Company proxies in favor of the Merger. The Purchaser agrees
that it shall vote, or cause to be voted, in favor of the Merger all Shares
directly or indirectly beneficially owned by it.



                                       38
<PAGE>

                  SECTION 6.3. Additional Agreements. Subject to the terms and
conditions herein provided, the Company and the Purchaser will each comply in
all material respects with all applicable laws and with all applicable rules and
regulations of any Governmental Authority to achieve the satisfaction of the
Minimum Condition and all conditions set forth in Annex I hereto and Article VII
hereof, and to consummate and make effective the Merger and the other
transactions contemplated hereby. Each of the parties hereto agrees to use all
reasonable efforts to obtain in a timely manner all necessary waivers, consents
and approvals and to effect all necessary registrations and filings, and to use
all reasonable efforts to take, or cause to be taken, all other actions and to
do, or cause to be done, all other things necessary, proper or advisable to
consummate and make effective as promptly as practicable the transactions
contemplated by this Agreement. In case at any time after the Effective Time any
further action is necessary or desirable to carry out the purposes of this
Agreement, the proper officers and directors of the Company and the Purchaser
shall use all reasonable efforts to take, or cause to be taken, all such
necessary actions.

                  SECTION 6.4. Notification of Certain Matters. The Company
shall give prompt notice to the Purchaser and the Purchaser shall give prompt
notice to the Company, of (a) the occurrence, or nonoccurrence, of any event
whose occurrence, or nonoccurrence, would be likely to cause either (i) any
representation or warranty contained in this Agreement to be untrue or
inaccurate in any material respect at any time from the date hereof to the
Effective Time or (ii) any condition set forth in Annex I hereto to be
unsatisfied in any material respect at any time from the date hereof to the date
the Purchaser purchases Shares pursuant to the Offer and (b) any material
failure of the Company or the Purchaser, as the case may be, or any officer,
director, employee or agent thereof, to comply with or satisfy any covenant,
condition or agreement to be complied with or satisfied by it hereunder;
provided, however, that the delivery of any notice pursuant to this Section 6.4
shall not limit or otherwise affect the remedies available hereunder to the
party receiving such notice.

                  SECTION 6.5.  Access to Information.

                  (a) From the date hereof to the Effective Time, the Company
shall, and shall cause its officers, directors, employees, auditors and agents
to, afford the officers, employees and agents of the Purchaser reasonable access
at all reasonable times to its officers, employees, agents, properties, offices
and other facilities and to all books and records, and shall furnish the
Purchaser with all financial, operating and other data and information as the
Purchaser, through its officers, employees or agents, may reasonably request.

                  (b) Unless otherwise required by law and until the Appointment
Date, the Purchaser agrees that it shall, and shall 



                                       39
<PAGE>

cause its affiliates and each of their respective officers, directors,
employees, financial advisors and agents (the "Purchaser Representatives"), to
hold in strict confidence all data and information obtained by them from the
Company (unless such information is or becomes publicly available without the
fault of any of the Purchaser Representatives or public disclosure of such
information is required by law in the opinion of counsel to the Purchaser) and
shall ensure that the Purchaser Representatives do not disclose such information
to others without the prior written consent of the Company. Notwithstanding
anything herein to the contrary, the terms of the Confidentiality Agreement,
dated December 1, 1998 (the "Confidentiality Agreement") executed by the
stockholders of Purchaser shall remain in full force and effect.

                  (c) In the event of the termination of this Agreement, the
Purchaser shall, and shall cause its affiliates to, return (without maintaining
any electronic, digital, magnetic or optical representation thereof) promptly
every document furnished to them by the Company or any of its representatives in
connection with the transactions contemplated hereby and any copies (without
maintaining any electronic, digital, magnetic or optical representation thereof)
thereof which may have been made, and shall cause the Purchaser Representatives
to whom such documents were furnished promptly to return such documents and any
copies thereof any of them may have made, other than documents filed with the
SEC or otherwise publicly available.

                  SECTION 6.6. Public Announcements. The Purchaser and the
Company shall consult with each other before issuing any press release or
otherwise making any public statements with respect to the Offer or the Merger
and shall not issue any such press release or make any such public statement
before such consultation, except as may be required by law.

                  SECTION 6.7. Best Efforts; Cooperation. Upon the terms and
subject to the conditions hereof, each of the parties hereto agrees to use its
reasonable best efforts to take or cause to be taken all actions and to do or
cause to be done all things necessary, proper or advisable to consummate the
transactions contemplated by this Agreement and shall use its reasonable best
efforts to obtain all necessary waivers, consents and approvals, and to effect
all necessary filings under the Exchange Act and the HSR Act. The parties hereto
shall cooperate in responding to inquiries from, and making presentations to,
regulatory authorities.

                  SECTION 6.8.  Agreement to Defend and Indemnify.

                  (a) It is understood and agreed that the Company shall, to the
fullest extent permitted under Delaware Law and regardless of whether the Merger
becomes effective, indemnify, defend and hold harmless, and after the Effective
Time, the Purchaser and the Surviving Corporation shall jointly and 



                                       40
<PAGE>

severally, to the fullest extent permitted under Delaware Law, indemnify, defend
and hold harmless the present and former officers, directors, employees and
agents of the Company ("Indemnified Parties") against any costs or expenses
(including reasonable attorneys' fees), judgments, fines, losses, claims,
damages, liabilities and amounts paid in settlement in connection with any
claim, action, suit, proceeding or investigation, including without limitation
liabilities arising out of this transaction, under the Exchange Act in
connection with the Offer or the Merger, and in the event of any such claim,
action, suit, proceeding or investigation (whether arising before or after the
Effective Time), (i) the Company or the Surviving Corporation shall pay the
reasonable fees and expenses of counsel selected by the Indemnified Parties,
which counsel shall be reasonably satisfactory to the Company or the Surviving
Corporation, promptly as statements therefor are received, and (ii) the Company
and the Surviving Corporation will cooperate in the defense of any such matter;
provided, however, that neither the Company nor the Surviving Corporation shall
be liable for any settlement effected without its prior written consent (which
consent shall not be unreasonably withheld); and further, provided, that neither
the Company nor the Surviving Corporation shall be obliged pursuant to this
Section 6.8 to pay the fees and disbursements of more than one counsel for all
Indemnified Parties in any single action except to the extent that, in the
opinion of counsel for the Indemnified Parties, two or more of such Indemnified
Parties have conflicting interests in the outcome of such action. For three
years after the Effective Time, the Surviving Corporation shall be required to
maintain or obtain officers' and directors' liability insurance covering the
Indemnified Parties who are currently covered by the Company's officers and
directors liability insurance policy with respect to matters existing or
occurring at or prior to the Effective Time on terms not less favorable than
those in effect on the date hereof in terms of coverage and amounts; provided,
however, that if the aggregate annual premiums for such insurance at any time
during such period shall exceed 150% of the per annum rate of premium currently
paid by the Company for such insurance on the date of this Agreement, which
amount is disclosed on Schedule 6.8 of the Disclosure Schedule, then the
Purchaser shall cause the Company (or the Surviving Corporation if after the
Effective Time) to, and the Company (or the Surviving Corporation if after the
Effective Time) shall, provide the maximum coverage that shall then be available
at an annual premium equal to 150% of such rate. This Section 6.8 shall survive
the consummation of the Merger. The Purchaser shall cause the Surviving
Corporation to reimburse all expenses, including reasonable attorney's fees and
expenses, incurred by any Person to enforce the obligations of the Purchaser and
the Surviving Corporation under this Section 6.8. Notwithstanding Section 9.7
hereof, this Section 6.8 is intended to be for the benefit of and to grant third
party rights to Indemnified Parties whether or not parties to this Agreement,



                                       41
<PAGE>

and each of the Indemnified Parties shall be entitled to enforce the covenants
contained herein.

                  (b) If the Surviving Corporation or any of its successors or
assigns (i) consolidates with or merges into any other Person and shall not be
the continuing or surviving corporation or entity of such consolidation or
merger or (ii) transfers all or substantially all of its properties and assets
to any Person, then and in each such case, proper provision shall be made so
that the successors and assigns of the Surviving Corporation assume the
obligations set forth in this Section 6.8.

                  SECTION 6.9.  Debt Offer.

                  (a) The Company shall, within 10 days of receiving any request
by the Purchaser to do so, commence an offer to purchase (accompanied by a
related solicitation of consents regarding covenant amendments) all of the
Company's outstanding 9 1/2% Senior Discount Notes due 2005 (the "Senior Notes")
on such customary terms and conditions as are acceptable to the Purchaser and
reasonably satisfactory to the Board of Directors (the "Debt Offer"). The
Company shall waive any of the conditions to the Debt Offer and make any other
changes in the terms and conditions of the Debt Offer as may be requested by the
Purchaser and as are reasonably satisfactory to the Board of Directors, and the
Company shall not, without the Purchaser's prior written consent, waive any
material condition to the Debt Offer, make any changes to the terms and
conditions of the Debt Offer set forth in Schedule 6.9 hereto or make any other
material changes in the terms and conditions of the Debt Offer. The Company
covenants and agrees that, subject to the terms and conditions of this
Agreement, including but not limited to the conditions in the Debt Offer, it
will accept for payment and pay for the Senior Notes as soon as reasonably
practicable after such conditions to the Debt Offer are satisfied and it is
permitted to do so under applicable law, provided that the Company shall use
reasonable best efforts to coordinate the timing of any such purchase with the
Purchaser in order to obtain the greatest participation in the Debt Offer.

                  (b) Promptly following the date of this Agreement, the Company
and the Purchaser shall prepare an offer to purchase for the Senior Notes and
forms of the related letters of transmittal and summary advertisement, as well
as all other information and exhibits (collectively, the "Debt Documents"). All
mailings of the Debt Documents to the holders of the Senior Notes in connection
with the Debt Offer shall be subject to the prior review, comment and approval
of the Purchaser (which approval shall not be unreasonably withheld or delayed).
The Company will use its reasonable best efforts to cause the Debt Documents to
be mailed to the holders of the Senior Notes as promptly as practicable
following receipt of the request from the Purchaser under paragraph (a) above to
do so. The Company agrees promptly 



                                       42
<PAGE>

to correct any information in the Debt Documents that shall be or have become
false or misleading in any material respect.

                  (c) The Purchaser shall provide to the Company all funds
necessary to consummate the Debt Offer on terms reasonably satisfactory to the
Board of Directors. No term or condition of such funding shall prevent or
restrict the consummation of the Merger.

                  (d) In the event that the Debt Offer is commenced but is
terminated without consummation, and such failure to consummate is not the
result of the Company's breach, the Purchaser will reimburse the Company for any
and all expenses and fees incurred by the Company in connection with the Debt
Offer.

                  SECTION 6.10. Qualified Electing Fund Documentation. The
Company has prepared, or caused to be prepared, and has submitted for review to
the Purchaser on or prior to the date hereof, Internal Revenue Service Form 8621
and such amended United States Federal income Tax Returns (and other
documentation), as required for the Company to make a retroactive "Qualified
Electing Fund" election, pursuant to Treasury Regulations Section 1.1295-3T(f),
effective for the Company's entire holding period, with respect to the Company's
interest in Omnitel. Such documentation shall be prepared in such manner as
would fully satisfy the requirements of Treasury Regulations Section
1.1295-3T(g) and the private letter ruling received by the Company dated
November 18, 1998. Such documentation shall not be filed with the Internal
Revenue Service without the Purchaser's prior written consent, which consent
shall not be unreasonably withheld or delayed. The Purchaser will take all
actions necessary to file such Forms 862i and such amended Tax Returns, and
shall cooperate with the Company in connection therewith.

                  SECTION 6.11. Omnitel Agreement. Notwithstanding anything
herein to the contrary, (i) it shall not constitute a failure of any condition
to the Merger set forth in Article VII of this Agreement nor to the Offer set
forth in Annex I of this Agreement, which conditions are for the benefit of the
Purchaser, if, and (ii) the Purchaser agrees that it will not terminate or seek
to terminate or otherwise impair its performance of this Agreement in any manner
as a result of, in either case, any claim, action, suit, proceeding (including,
without limitation, arbitration proceeding) or other alternative dispute
resolution proceeding or investigation is commenced or threatened against the
Company, the Purchaser, Mannesmann, Olivetti or Oliman Holding B.V. arising out
of, or relating to, the Joint Venture Agreement, dated as of May 3, 1990, among
Ing. C. Olivetti & C., S.p.A., Bell Atlantic International, Inc., CCI
Partnership, Inc., Shearson Lehman Hutton Eurocell Italy, Inc. and Swedish
Telecomm International AB, as amended November 24, 1993 and February 23, 1994,
and in connection with the execution and delivery of this Agreement and the
consummation of the transactions contemplated 



                                       43
<PAGE>

hereby, other than any of the foregoing brought by or on behalf of the Company.

                                  ARTICLE VII.

                              CONDITIONS OF MERGER

                    The respective obligations of each party to effect the
  Merger shall be subject to the following conditions, provided that the
  obligation of each party shall not be relieved by the failure of any such
  conditions if such failure of any such conditions is the proximate result of
  any breach by such party of any of its material obligations under this
  Agreement.

                  SECTION 7.1. Offer. The Purchaser shall have made, or caused
to be made, the Offer and shall have purchased, or caused to be purchased, the
Shares pursuant to the Offer; provided, however, that this condition shall be
deemed to have been satisfied with respect to the obligation of the Purchaser to
effect the Merger if the Purchaser fails to accept for payment or pay for Shares
pursuant to the Offer in violation of the terms of the Offer or of this
Agreement.

                  SECTION 7.2. Stockholder Approval. The Merger and this
Agreement shall have been approved and adopted by the requisite vote of the
stockholders of the Company, if required by Delaware Law.

                  SECTION 7.3. No Challenge. No statute, rule, regulation,
judgment, writ, decree, order or injunction shall have been promulgated,
enacted, entered or enforced, and no other action shall have been taken, by any
government or governmental, administrative or regulatory authority or by any
court of competent jurisdiction, that in any of the foregoing cases has the
effect of making illegal or directly or indirectly restraining, prohibiting or
restricting the consummation of the Merger.

                                  ARTICLE VIII.

                        TERMINATION, AMENDMENT AND WAIVER

                  SECTION 8.1. Termination. This Agreement may be terminated and
the transactions contemplated herein may be abandoned at any time before the
Effective Time, whether before or after stockholder approval:

                  (a) By mutual written consent of the Boards of Directors of
the Purchaser and the Company; or

                  (b) By the Purchaser if the Offer shall have expired or been
terminated without any Shares being purchased thereunder 



                                       44
<PAGE>

by the Purchaser as a result of the occurrence of any of the events set forth in
Annex I; or

                  (c) By either the Purchaser or the Company if a court of
competent jurisdiction or governmental, regulatory or administrative agency or
commission shall have issued an order, decree or ruling or taken any other
action (which order, decree or ruling the parties hereto shall use their best
efforts to lift), in each case permanently restraining, enjoining or otherwise
prohibiting the transactions contemplated by this Agreement; or

                  (d) By the Purchaser if, without any material breach by the
Purchaser of its obligations under this Agreement, the purchase of Shares
pursuant to the Offer shall not have occurred on or before May 15, 1999; or

                  (e) By the Company if, without any material breach by the
Company of its obligations under this Agreement, the purchase of Shares pursuant
to the Offer shall not have occurred on or before May 15, 1999; or

                  (f) By the Company (i) if there shall be a material breach of
any of the Purchaser's representations, warranties or covenants hereunder, which
breach cannot be or has not been cured within ten days of the receipt of written
notice thereof, or (ii) to allow the Company to enter into an agreement in
accordance with Section 5.3(b) with respect to a Superior Proposal which the
Board of Directors has determined is more favorable to the stockholders of the
Company than the transactions contemplated hereby; provided that it has complied
with all provisions thereof, including the notice provision therein, and that it
makes simultaneous payment of the Termination Fee, plus any amounts then due as
a reimbursement of expenses; or

                  (g) By the Purchaser if, prior to the purchase of Shares
pursuant to the Offer the Company shall have breached any representation,
warranty or covenant or other agreement contained in this Agreement, which
breach (i) would give rise to the failure of a condition set forth in paragraph
(e) or (f) of Annex I hereto and (ii) cannot be or has not been cured within ten
days of the receipt of written notice thereof; or

                  (h) By the Purchaser, at any time prior to the purchase of the
Shares pursuant to the Offer, if (i) the Board of Directors shall withdraw,
modify, or change its recommendation or approval in respect of this Agreement or
the Offer in a manner adverse to the Purchaser, (ii) the Board of Directors
shall have recommended any proposal other than by the Purchaser in respect of a
Takeover Proposal, (iii) the Company shall have exercised a right with respect
to a Takeover Proposal referenced in Section 5.3(b) and shall, directly or
through its representatives, continue discussions with any third party
concerning a Takeover Proposal for more than ten business days after the date of




                                       45
<PAGE>

receipt of such Takeover Proposal, (iv) a Takeover Proposal that is publicly
disclosed shall have been commenced or communicated to the Company which
contains a proposal as to price (without regard to whether such proposal
specifies a specific price or a range of potential prices) and the Company shall
not have rejected such proposal within twenty (20) business days of its receipt
or, if sooner, the date its existence first becomes publicly disclosed, or (v)
any Person or group (as defined in Section 13(d)(3) of the Exchange Act) other
than the Purchaser or any of its Subsidiaries or affiliates shall have become
the beneficial owner of more than 15% of the outstanding Company Common Stock
(either on a primary or a fully diluted basis); provided, however, that this
provision shall not apply to any Person that owns more than 15% of the
outstanding Shares on the date hereof; or

                  (i) by the Purchaser, if the Company or its representatives
shall have materially breached the provisions of Section 5.1 or Section 5.3
hereof.

                  SECTION 8.2.  Effect of Termination.

                  (a) In the event of termination of this Agreement as provided
in Section 8.1 hereof, written notice thereof shall forthwith be given to the
other party specifying the provision hereof pursuant to which such termination
is made, and this Agreement shall forthwith become null and void and there shall
be no liability on the part of the Purchaser or the Company, except (i) as set
forth in Sections 6.5 and 9.3 hereof and (ii) nothing herein shall relieve any
party from liability for any breach of this Agreement.

                  (b) If (i) the Purchaser shall have terminated this Agreement
pursuant to Section 8.1(h) or Section 8.1(i), (ii) the Purchaser shall have
terminated this Agreement pursuant to Section 8.1(g), following the date hereof
but prior to such termination there shall have been a Takeover Proposal
Interest, and within two years of any such termination the Company shall have
entered into a definitive agreement with respect to a Takeover Proposal or a
Takeover Proposal with respect to the Company shall have been consummated or
(iii) the Company shall have terminated this Agreement pursuant to Section
8.1(f)(ii), then in any such case the Company shall pay simultaneously with such
termination if pursuant to Section 8.1(f)(ii) and promptly, but in no event
later than two business days after the date of such termination or event if
pursuant to Section 8.1(h), 8.1(i) or 8.1(g), to the Purchaser a termination fee
(the "Termination Fee") of $43 million, which amount shall be payable by wire
transfer to such account as the Purchaser may designate in writing to the
Company.



                                       46
<PAGE>

                                   ARTICLE IX.

                               GENERAL PROVISIONS

                  SECTION 9.1. Non-Survival of Representations, Warranties and
Agreements. The representations, warranties and agreements in this Agreement or
in any schedule, instrument or other document delivered pursuant to this
Agreement shall terminate at the Effective Time or the termination of this
Agreement pursuant to Section 8.1, as the case may be, except that the
agreements set forth in Article II and Section 6.8 shall survive the Effective
Time indefinitely and those set forth in Sections 6.5(b), 6.5(c), 8.2 and 9.3
shall survive termination indefinitely.

                  SECTION 9.2. Notices. All notices and other communications
given or made pursuant hereto shall be in writing and shall be deemed to have
been duly given or made (i) as of the date delivered or sent by facsimile if
delivered personally or by facsimile, (ii) on the first business day following
dispatch by an internationally recognized overnight courier service to a
domestic addressee, (iii) on the third business day following dispatch by an
internationally recognized overnight courier service to a international
addressee and (iv) on the tenth business day after deposit with a national mail
service, if mailed by registered or certified mail (postage prepaid, return
receipt requested), in each case to the parties at the following addresses (or
at such other address for a party as shall be specified by like notice, except
that notices of changes of address shall be effective upon receipt):

                  (a)      if to the Purchaser

                           Mannesmann AG
                           Am Wallgraben 125
                           D-70565 Stuttgart
                           Germany
                           Attention: Dr. Kurt J. Kinzius
                           Facsimile: 49-711-990-2201

                           and


                                       47
<PAGE>


                           Olivetti S.p.A.
                           Via Lorenteggio 257
                           20152 Milan
                           Italy
                           Attention: Marco De Benedetti
                           Facsimile: 39-2-4836-6700

                           With a copy to:

                           Willkie Farr & Gallagher
                           787 Seventh Avenue
                           New York, New York  10019-6009
                           Attention:  Neil Novikoff, Esq.
                           Facsimile:   (212) 728-8111

                  (b)      if to the Company:

                           Cellular Communications International, Inc.
                           110 East 59th Street
                           New York, New York  10022
                           Attention:  Richard J. Lubasch, Esq.
                           Facsimile:  (212) 906-8497

                           With a copy to:

                           Skadden, Arps, Slate, Meagher & Flom LLP
                           919 Third Avenue
                           New York, New York 10022
                           Attention: Thomas H. Kennedy, Esq.
                           Facsimile: (212) 735-2000

                  SECTION 9.3. Expenses. Except as expressly set forth in
Section 8.2(b), all fees, costs and expenses incurred in connection with this
Agreement and the transactions contemplated hereby shall be paid by the party
incurring such fees, costs and expenses.

                  SECTION 9.4. Certain Definitions. For purposes of this
Agreement, the term:

                  (a) "affiliate" of a Person means a Person that directly or
indirectly, through one or more intermediaries, controls, is controlled by, or
is under common control with, the first mentioned Person. For avoidance of
doubt, NTL, CCPR and Corecomm shall not be considered affiliates of the Company;

                  (b) "control" (including the terms "controlled by" and "under
common control with") means the possession, direct or indirect, of the power to
direct or cause the direction of the management and policies of a Person,
whether through the ownership of stock, as trustee or executor, by contract or
credit arrangement or otherwise; and



                                       48
<PAGE>

                  (c) "Lien" means any mortgage, pledge, hypothecation,
assignment for security purposes, deposit arrangement, encumbrance, lien
(statutory or other), charge or other security interest or any preference,
priority or other security agreement or preferential arrangement of any kind or
nature whatsoever (including without limitation any conditional sale or other
title retention agreement and any financing lease having substantially the same
economic effect as any of the foregoing); provided, however, that liens for
Taxes not yet due and payable but for which adequate reserves have been
established and other statutory liens shall not be Liens for the purposes of
this Agreement.

                  (d) "Person" means an individual, corporation, partnership,
limited liability company, association, trust or any unincorporated
organization.

                  SECTION 9.5. Headings. The headings contained in this
Agreement are for reference purposes only and shall not affect in any way the
meaning or interpretation of this Agreement.

                  SECTION 9.6. Severability. If any term or other provision of
this Agreement is invalid, illegal or incapable of being enforced by any rule of
law, or public policy, all other conditions and provisions of this Agreement
shall not affect the validity or enforceability of the remaining terms and
provisions hereof or the validity or enforceability of the offending term or
provision in any other situation or in any other jurisdiction. Upon such
determination that any term or other provision is invalid, illegal or incapable
of being enforced, the parties hereto shall negotiate in good faith to modify
this Agreement so as to effect the original intent of the parties as closely as
possible in an acceptable manner to the end that the transactions contemplated
hereby are fulfilled to the maximum extent possible.

                  SECTION 9.7. Entire Agreement; No Third-Party Beneficiaries.
This Agreement, the Option Agreement and the Stockholders Agreement constitute
the entire agreement and supersede any and all other prior agreements and
undertakings, both written and oral, between the parties with respect to the
subject matter hereof and, except as otherwise expressly provided herein, this
Agreement is not intended to confer upon any other Person any rights or remedies
hereunder.

                  SECTION 9.8. Assignment. This Agreement shall not be assigned
by operation of law or otherwise, except that the Purchaser may assign all or
any of its rights hereunder to any affiliate of the Purchaser provided that no
such assignment shall relieve the Purchaser of its obligations hereunder.

                  SECTION 9.9. Governing Law. This Agreement shall be governed
by, and construed in accordance with, the laws of the State of Delaware
applicable to contracts executed in and to be performed entirely within that
State.

                                       49
<PAGE>

                  SECTION 9.10. Amendment. This Agreement may be amended by the
parties hereto by action taken by the Purchaser and by action taken by or on
behalf of the Board of Directors at any time before the Effective Time;
provided, however, that, after approval, if any, of the Merger by the
stockholders of the Company, no amendment may be made which would reduce the
amount or change the type of consideration into which each Share will be
converted upon consummation of the Merger. This Agreement may not be amended
except by an instrument in writing signed by the parties hereto.

                  SECTION 9.11. Waiver. At any time before the Effective Time,
either party hereto may (a) extend the time for the performance of any of the
obligations or other acts of the other party hereto, (b) waive any inaccuracies
in the representations and warranties contained herein or in any document
delivered pursuant hereto and (c) waive compliance with any of the agreements or
conditions contained herein. Any agreement on the part of a party hereto to any
such extension or waiver shall be valid only as against such party and only if
set forth in an instrument in writing signed by such party.

                  SECTION 9.12. Counterparts. This Agreement may be executed in
two or more counterparts, and by the different parties hereto in separate
counterparts, each of which when executed shall be deemed to be an original but
all of which shall constitute one and the same agreement.



                                       50
<PAGE>

                  IN WITNESS WHEREOF, the Purchaser and the Company have caused
this Agreement to be executed as of the date first written above by their
respective officers thereunto duly authorized.

                                 CELLULAR COMMUNICATIONS 
                                 INTERNATIONAL, INC.



                                 By: /s/ William Ginsberg
                                    ---------------------------------------
                                    Name: William B. Ginsberg
                                    Title: Chairman of the Board of
                                           Directors, President,
                                           Chief Executive Officer



                                 KENSINGTON ACQUISITION SUB, INC.
                                 By: /s/ Marco De Benedetti
                                    ---------------------------------------
                                    Name: Marco De Benedetti
                                    Title: Co-President and
                                           Co-Secretary


                                 By: /s/ Kurt Kinzius
                                    ---------------------------------------
                                    Name: Dr. Kurt Kinzius
                                    Title: Co-President and
                                           Co-Secretary


<PAGE>

                                     ANNEX I

                  Conditions to the Offer. Notwithstanding any other provision
of the Offer, the Purchaser shall not be required to accept for payment or,
subject to any applicable rules and regulations of the SEC, including Rule
14e-1(c) promulgated under the Exchange Act (relating to the Purchaser's
obligation to pay for or return tendered Shares promptly after termination or
withdrawal of the Offer), pay for, and (subject to any such rules or
regulations) may delay the acceptance for payment of any tendered Shares and
(except as provided in this Agreement) amend or terminate the Offer as to any
Shares not then paid for if (i) the condition that there shall be validly
tendered and not withdrawn prior to the expiration of the Offer a number of
Shares which represents at least a majority of the total number of shares of
Company Common Stock then outstanding on a fully diluted basis (after giving
effect to the conversion or exercise of all outstanding options, warrants and
other rights and securities exercisable or convertible into shares of Company
Common Stock) shall not have been satisfied (the "Minimum Condition"); (ii) any
applicable waiting period under the HSR Act shall not have expired or been
terminated prior to the expiration of the Offer; or (iii) at any time after the
date of this Agreement and before the time of acceptance of payment for any such
Shares (whether or not any Shares have theretofore been accepted for payment or
paid for pursuant to the Offer), any of the following conditions exists:

                  (a) there shall be threatened or pending in effect an
         injunction or other order, decree, judgment or ruling by a court of
         competent jurisdiction or by a governmental, regulatory or
         administrative agency or commission of competent jurisdiction or a
         statute, rule, regulation, executive order or other action shall have
         been promulgated, enacted, taken or threatened by a Governmental
         Authority or a governmental, regulatory or administrative agency or
         commission of competent jurisdiction which in any such case (i)
         restrains or prohibits the making or consummation of the Offer or the
         consummation of the Merger, (ii) prohibits or restricts the ownership
         or operation by the Purchaser (or any of its affiliates or
         subsidiaries) of any portion of its or the Company's business or assets
         which is material to the business of all such entities taken as a
         whole, or compels the Purchaser (or any of its affiliates or
         subsidiaries) to dispose of or hold separate any portion of its or the
         Company's business or assets which is material to the business of all
         such entities taken as a whole, (iii) imposes material limitations on
         the ability of the Purchaser effectively to acquire or to hold or to
         exercise full rights of ownership of the Shares, including, without
         limitation, the right to vote the Shares purchased by the Purchaser on
         all matters properly presented to the stockholders of the Company, (iv)
         imposes any material limitations on the ability of the Purchaser or any
         of its affiliates or 


<PAGE>

         subsidiaries effectively to control in any material respect the 
         business and operations of the Company; or

                  (b) this Agreement shall have been terminated by the Company
         or the Purchaser in accordance with its terms; or

                  (c) there shall have occurred (i) any general suspension of,
         or limitation on prices for, trading in securities on any national
         securities exchange or the over-the-counter market for a period in
         excess of 24 hours (excluding suspensions or limitations resulting
         solely from physical damage or interference with such exchanges not
         related to market conditions), (ii) a declaration of a banking
         moratorium or any suspension of payments in respect of banks in the
         United States (whether or not mandatory), (iii) a commencement of a
         war, armed hostilities or other international or national calamity
         directly or indirectly involving the United States (with the exception
         of any such occurrence involving Iraq), (iv) any limitation (whether or
         not mandatory) by any United States Governmental Authority on the
         extension of credit generally by banks, (v) a change in general
         financial, bank or capital market conditions which materially and
         adversely affects the ability of financial institutions in the United
         States to extend credit or syndicate loans to investment grade
         securities or (vi) in the case of any of the foregoing existing at the
         time of the execution of this Agreement, a material acceleration or
         worsening thereof; or

                  (d) (i) the Board of Directors or any committee thereof shall
         have withdrawn or modified in a manner adverse to the Purchaser its
         approval or recommendation of the Offer, the Merger or this Agreement,
         or approved or recommended any Takeover Proposal, or (ii) the Company
         shall have entered into any agreement with respect to any Superior
         Proposal in accordance with Section 5.3(b) of this Agreement; or

                  (e) the representations and warranties of the Company set
         forth in this Agreement shall not be true and correct in all material
         respects, in each case (i) as of the date referred to in any
         representation or warranty which addresses matters as of a particular
         date, or (ii) as to all other representations and warranties as of the
         date of this Agreement and as of the scheduled expiration of the Offer;
         or

                  (f) the Company shall have failed to perform in all material
         respects any obligation or to comply with any agreement or covenant to
         be performed or complied with by it under this Agreement; or

                  (g) the Purchaser shall have failed to receive a certificate
         executed by the President or a Vice President of 



<PAGE>

         the Company, dated as of the scheduled expiration of the Offer, to the
         effect that the conditions set forth in paragraphs (e) and (f) of this
         Annex I have not occurred; or

                  (h) there shall have occurred any change (or any development
         that, insofar as reasonably can be foreseen, is reasonably likely to
         result in any change) that constitutes a Material Adverse Effect; or

                  (i) any Person acquires beneficial ownership (as defined in
         Rule 13d-3 promulgated under the Exchange Act), of at least 15% of the
         outstanding Company Common Stock.

                  The foregoing conditions (other than the Minimum Condition)
are for the sole benefit of the Purchaser and may be asserted by the Purchaser
regardless of the circumstances (including any action or inaction by the
Purchaser) giving rise to any such conditions and may be waived by the Purchaser
in whole or in part at any time and from time to time, in each case, in the
exercise of the good faith judgment of the Purchaser and subject to the terms of
this Agreement. The failure by the Purchaser at any time to exercise any of the
foregoing rights shall not be deemed a waiver of any such right and each such
right shall be deemed an ongoing right which may be asserted at any time and
from time to time.


<PAGE>

                                                                    Exhibit 99.3


                             STOCKHOLDERS AGREEMENT

            STOCKHOLDERS AGREEMENT (this "Agreement"), dated as of December 11,
1998, by and among Cellular Communications International, Inc., a Delaware
corporation (the "Company"), Kensington Acquisition Sub, Inc., a Delaware
corporation ("Purchaser"), and the persons listed on Schedule 1 hereto (the
"Stockholders").

                              W I T N E S S E T H:

            WHEREAS, concurrently with the execution and delivery of this
Agreement, the Company and Purchaser have entered into an Agreement and Plan of
Merger, dated as of the date hereof (as such agreement may hereafter be amended
from time to time, the "Merger Agreement"), pursuant to which, among other
things, Purchaser will make a tender offer (the "Offer") for all outstanding
shares of common stock, par value $.01 per share ("Shares"), of the Company at a
price of $65.75 per Share (the "Offer Price"), net to the seller in cash, to be
followed by a merger of Purchaser with and into the Company, and each issued and
outstanding Share, except as set forth in the Merger Agreement, will be
converted into the right to receive the Offer Price;

            WHEREAS, the Stockholders are the Beneficial Owners (as defined
below) and owners of record, and have the sole right to vote and dispose of,
Shares as indicated on Schedule 1 hereto (with respect to such Stockholder,
together with any other Shares acquired by such Stockholder after the date
hereof and during the term of the Agreement, collectively the "Owned Shares");
and

            WHEREAS, as an inducement and a condition to its entering into the
Merger Agreement and incurring the obligations set forth therein, Purchaser has
required that the Stockholders enter into this Agreement.

            NOW, THEREFORE, in consideration of the foregoing and the mutual
promises, representations, warranties, covenants and agreements contained herein
and in the Merger Agreement, the parties hereto, intending to be legally bound
hereby, agree as follows:

            1. Certain Definitions. Capitalized terms not defined herein have
the respective meanings ascribed to them in the Merger Agreement. In addition,
for purposes of this Agreement:

            "Affiliate" means, with respect to any specified Person, any Person
that directly, or indirectly through one or

<PAGE>

more intermediaries, controls, or is controlled by, or is under common control
with, the Person specified.

            "Beneficially Own", "Beneficial Owner" or "Beneficial Ownership"
with respect to any securities means having "beneficial ownership" of such
securities (as determined pursuant to Rule 13d-3 under the Exchange Act),
including pursuant to any agreement, arrangement or understanding, whether or
not in writing. Without duplicative counting of the same securities by the same
holder, securities Beneficially Owned by a Person shall include securities
Beneficially Owned by all Affiliates of such Person and all other Persons with
whom such Person would constitute a "group" within the meaning of Section 13(d)
of the Exchange Act and the rules promulgated thereunder.

            "Person" means an individual, corporation, partnership, limited
liability company, joint venture, association, trust, unincorporated
organization or other entity.

            "Representative" means, with respect to any Person, as applicable,
such Person's officers, directors, employees, agents and representatives
(including any investment banker, financial advisor, agent, representative or
expert retained by or acting on behalf of such Person or its Subsidiaries).

            "Transfer" means, with respect to a security, the sale, transfer,
pledge, hypothecation, encumbrance, assignment or disposition of such security
or the Beneficial Ownership thereof, the offer to make such a sale, transfer or
other disposition, and each option, agreement, arrangement or understanding,
whether or not in writing, to effect any of the foregoing. As a verb, "Transfer"
shall have a correlative meaning.

            2. Agreement to Tender; Voting of Owned Shares; Proxy. (a) If
requested by the Purchaser, the Company shall take all actions necessary to
provide that, prior to the Expiration Date, all Options granted to Stockholders
under the Option Plans are vested and exercisable. Each Stockholder hereby
agrees, if requested by the Purchaser, to exercise (on the Expiration Date but
not earlier than 5 p.m. on such date) all Options granted to such Stockholder
under the Option Plans, which exercise may be conditional upon the satisfaction
of the following: the receipt of a notice from the Purchaser that, as of 5 p.m.
on such day, it expects satisfaction of all conditions in the Offer; the
delivery of an irrevocable notice by the Purchaser to the Depositary of its
acceptance for payment of the tenders of the Shares pursuant to the Offer and a
calculation showing that such exercise and tender will, giving effect to all
Shares tendered as of 5 p.m. on such day, result in a tender of over 9O% of the
outstanding Shares in the Offer. In connection with such exercise, the Purchaser
will indemnify the Stockholder against any and all costs, expenses and taxes
incurred by such Stockholder which would not be incurred by such Stockholder if
the Options were treated pursuant to Section 2.12(a) of the Merger Agreement.


                                       2
<PAGE>

During the period commencing on the date hereof and continuing until the earlier
to occur of (i) the Effective Time and (ii) the termination of the Merger
Agreement in accordance with its terms (such period being referred to as the
"Voting Period"), each Stockholder (x) hereby agrees to validly tender (or cause
the record owner of such Shares to validly tender) and sell (and not withdraw)
pursuant to the Offer not later than the tenth business day after commencement
of the Offer all of the Owned Shares; and (y) at any meeting (whether annual or
special, and whether or not an adjourned or postponed meeting) of the Company's
stockholders, however called, or in connection with any written consent of the
Company's stockholders, subject to the absence of a preliminary or permanent
injunction or other final order by any United States federal, state or foreign
court barring such action, shall vote (or cause to be voted) all of its Owned
Shares:

            a. in favor of the Merger, the execution and delivery by the Company
      of the Merger Agreement and the approval and adoption of the Merger and
      the terms thereof and each of the other actions contemplated by the Merger
      Agreement and this Agreement and any actions required in furtherance
      thereof and hereof;

            b. against any action or agreement that would (A) result in a breach
      of any covenant, representation or warranty or any other obligation or
      agreement of the Company under the Merger Agreement or of such Stockholder
      under this Agreement or (B) impede, interfere with, delay, postpone, or
      adversely affect the Merger or the transactions contemplated thereby or
      hereby; and

            c. except as otherwise agreed to in writing in advance by Purchaser,
      against the following actions (other than the Merger and the transactions
      contemplated by the Merger Agreement and this Agreement): (A) any
      extraordinary corporate transaction, such as a merger, consolidation or
      other business combination, involving the Company or any of its
      Subsidiaries; (B) any sale, lease or transfer of a material amount of the
      assets or business of the Company or its Subsidiaries, or any
      reorganization, restructuring, recapitalization, special dividend,
      dissolution, liquidation or winding up of the Company or its Subsidiaries;
      (C) any change in the present capitalization of the Company, including any
      proposal to sell any equity interest in the Company or any of its
      Subsidiaries or any amendment of the Restated Certificate of Incorporation
      or Bylaws of the Company; (D) any change in the majority of the Board of
      Directors; (E) any other change in the Company's corporate structure or
      business; and (F) any other action which is intended or could reasonably
      be expected to impede, interfere with, delay, postpone, discourage or
      affect the Merger, the transactions contemplated by the Merger Agreement
      or this Agreement or the contemplated economic benefits of any of the
      foregoing. No Stockholder shall


                                       3
<PAGE>

      enter into any agreement, arrangement or understanding with any Person the
      effect of which would be inconsistent with or violative of the provisions
      and agreement contained in this Section 2(a).

            (b) IRREVOCABLE PROXY. EACH STOCKHOLDER HEREBY GRANTS TO, AND
APPOINTS PURCHASER, DR. KURT J. KINZIUS AND MARCO DE BENEDETTI, IN THEIR
RESPECTIVE CAPACITIES AS OFFICERS OF PURCHASER, AND ANY INDIVIDUAL WHO SHALL
HEREAFTER SUCCEED TO ANY SUCH OFFICE OF THE PURCHASER, AND ANY OTHER DESIGNEE OF
PURCHASER, EACH OF THEM INDIVIDUALLY, SUCH STOCKHOLDER'S IRREVOCABLE (UNTIL THE
END OF THE VOTING PERIOD) PROXY AND ATTORNEY-IN-FACT (WITH FULL POWER OF
SUBSTITUTION) TO VOTE THE OWNED SHARES OF THE STOCKHOLDER AS INDICATED IN
SECTION 2(a) ABOVE. THE STOCKHOLDER INTENDS THIS PROXY TO BE IRREVOCABLE (UNTIL
THE END OF THE VOTING PERIOD) AND COUPLED WITH AN INTEREST AND SHALL TAKE SUCH
FURTHER ACTIONS AND EXECUTE SUCH OTHER INSTRUMENTS AS MAY BE NECESSARY TO
EFFECTUATE THE INTENT OF THIS PROXY AND HEREBY REVOKES ANY PROXY PREVIOUSLY
GRANTED BY THE STOCKHOLDER WITH RESPECT TO THE OWNED SHARES.

            3. (a) Restrictions on Transfer, Other Proxies. No Stockholder
shall, until the expiration of the Voting Period, directly or indirectly: (i)
Transfer to any Person any or all Owned Shares; (ii) except as provided in
Section 2(b), grant any proxies or powers of attorney, deposit any Owned Shares
into a voting trust or enter into a voting agreement, understanding or
arrangement with respect to such Owned Shares; or (iii) take any action that
would make any representation or warranty of such Stockholder contained herein
untrue or incorrect or would result in a breach by such Stockholder of its
obligations under this Agreement or a breach by the Company of its obligations
under the Merger Agreement. Notwithstanding the foregoing, the Stockholder may
transfer Shares to (x) an Affiliate of the Stockholder, (y) any member of the
immediate family of the Stockholder or trusts for the benefit of family members
of the Stockholder or (z) any organizations qualifying under Section 501(c) (3)
of the Internal Revenue Code of 1986, as amended, in each case under clauses
(x), (y) and (z), that agrees to be bound by this Agreement.

            (b) Notwithstanding anything herein to the contrary, the Stockholder
may exercise Options pursuant to a "cashless exercise" or similar provision,
such that the number of Shares actually received may be less than the number of
Shares set forth on Schedule 1.

            (c) Each Stockholder hereby agrees, during the Voting Period, to
place the following legend on any and all certificates representing any Owned
Shares:

            THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
            CERTAIN RESTRICTIONS ON TRANSFER PURSUANT TO THAT CERTAIN
            STOCKHOLDERS AGREEMENT,


                                       4
<PAGE>

            DATED AS OF DECEMBER 11, 1998, BY AND AMONG THE
            STOCKHOLDERS OF CELLULAR COMMUNICATIONS
            INTERNATIONAL, INC. PARTY THERETO, CELLULAR
            COMMUNICATIONS INTERNATIONAL, INC. AND KENSINGTON
            ACQUISITION SUB, INC. AND ANY TRANSFER OF SUCH SHARES
            IN VIOLATION OF THE TERMS OF SUCH AGREEMENT SHALL BE
            NULL AND VOID AND OF NO EFFECT WHATSOEVER.

            4. No Solicitation. (a) Other than as required in his capacity as
director of the Company (or as an officer of the Company acting at the direction
of the Board of Directors of the Company) under applicable law and fiduciary
duties, in which case his actions shall be restricted solely by the terms of the
Merger Agreement, each Stockholder and its Affiliates shall not, and shall
instruct their respective officers, directors, employees, agents or other
Representatives not to,

            (i) directly or indirectly solicit, initiate, or encourage
      (including by way of furnishing nonpublic information or assistance), or
      take any other action to facilitate, any inquiries or proposals from any
      Person that constitute, or may reasonably be expected to lead to, a
      Takeover Proposal,

            (ii) enter into, maintain, or continue discussions or negotiations
      with any party (other than Purchaser) in furtherance of such inquiries or
      to obtain a Takeover Proposal, and shall use their best efforts to cause
      any such party in possession of confidential information about the Company
      that was furnished by or on behalf of the Stockholder to return or destroy
      all such information in the possession of any such party (other than the
      Company) or in the possession of any Representative of any such party,

            (iii) agree to or endorse any Takeover Proposal, or

            (iv) authorize or permit the Stockholder's or any of its Affiliates'
      Representatives to take any such action.

            (b) During the Voting Period, other than as required in his capacity
as director of the Company (or as an officer of the Company acting at the
direction of the Board of Directors of the Company) under applicable law and
fiduciary duties, in which case his actions shall be restricted solely by the
terms of the Merger Agreement, each Stockholder shall not, and shall cause its
Affiliates not to, directly or indirectly, make any public comment, statement or
communication, or take any action that would otherwise require any public
disclosure by such Stockholder, the Company, Purchaser or any other Person,
concerning the Merger and the other transactions contemplated by the Merger
Agreement and this Agreement except for any disclosure (i) concerning the status
of the Stockholder as a party to this Agreement, the terms hereof, and its
Beneficial Ownership of


                                       5
<PAGE>

Shares required pursuant to Section 13(d) of the Exchange Act or (ii) required
in the Proxy Statement (as defined in the Merger Agreement).

            5. Proprietary Information. Except as required by law, no
Stockholder and no Representative of any Stockholder shall, at any time,
directly or indirectly, make use of or divulge or otherwise disclose to any
Person other than Purchaser, any trade secret, confidential information or other
proprietary information or data (including any financial data, mailing lists,
customer lists or employee data or records) concerning the business or policies
of the Company or its Subsidiaries that such Stockholder or any of its
Representatives may have learned as a stockholder, employee, officer or director
of the Company or any of its Subsidiaries.

            6. Representations and Warranties of the Stockholder. Each
Stockholder hereby severally represents, warrants and covenants to Purchaser as
follows:

            (a) Due Authorization, Etc. Such Stockholder has all necessary power
and authority to enter into and perform this Agreement and its obligations
hereunder, and no other proceedings or actions on the part of such Stockholder
are necessary to authorize the execution, delivery or performance of this
Agreement or the consummation of the transactions contemplated hereby. Such
Stockholder currently has good, valid and marketable title to the Owned Shares,
free and clear of all security interests, liens, claims, charges, encumbrances,
equities and options of any nature whatsoever, and with no restriction on the
voting rights pertaining thereto. The Stockholder further warrants that there
are no outstanding options, warrants or rights to purchase or acquire, or
agreements relating to, any of the Owned Shares.

            (b) Enforceability. This Agreement constitutes a valid and binding
agreement of such Stockholder, enforceable against such Stockholder in
accordance with its terms. Neither the execution and delivery of this Agreement
by such Stockholder nor the consummation by such Stockholder of the transactions
contemplated hereby shall conflict with or constitute a violation of or default
under any contract, commitment, agreement, arrangement or restriction of any
kind to which such Stockholder is a party or by which such Stockholder is bound.

            (c) Voting Rights. Except as provided in Section 2(b) hereof, such
Stockholder has sole power to vote and to dispose of the Owned Shares, and sole
power to issue instructions with respect to the Owned Shares to the extent
appropriate in respect of the matters set forth in this Agreement, sole power to
demand appraisal rights and sole power to agree to all of the matters set forth
in this Agreement, in each case with respect to all of the Owned Shares, with no
limitations, qualifications, or


                                       6
<PAGE>

restrictions on such rights, subject to applicable securities laws and the terms
of this Agreement.

            (d) No Filings. Except for filings, authorizations, consents and
approvals as may be required under, and other applicable requirements of, the
HSR Act and the Exchange Act, (i) no filing with, and no permit, authorization,
consent or approval of, any state or federal governmental body or authority is
necessary for the execution of this Agreement by such Stockholder and the
consummation by such Stockholder of the transactions contemplated hereby and
(ii) none of the execution and delivery of this Agreement by such Stockholder,
the consummation by such Stockholder of the transactions contemplated hereby or
compliance by such Stockholder with any of the provisions hereof shall (A)
result in a violation or breach of, or constitute (with or without notice or
lapse of time or both) a default (or give rise to any third party right of
termination, cancellation, material modification or acceleration) under any of
the terms, conditions or provisions of any note, loan agreement, bond, mortgage,
indenture, license, contract, commitment, arrangement, understanding, agreement
or other instrument or obligation of any kind to which such Stockholder is a
party or by which such Stockholder or any of its properties or assets (including
the Owned Shares) may be bound, or (B) violate any order, writ, injunction,
decree, judgment, statute, rule or regulation applicable to such Stockholder or
any of its properties or assets.

            (e) Such Stockholder understands and acknowledges that Purchaser is
entering into the Merger Agreement, and is incurring the obligations set forth
therein, in reliance upon the Stockholder's execution and delivery of this
Agreement.

            7. Representations and Warranties of Purchaser. Purchaser hereby
represents, warrants and covenants to each Stockholder as follows:

            (a) Due Authorization, Etc. Purchaser has all necessary corporate
power and authority to enter into and perform this Agreement and its obligations
hereunder, and no other proceedings or actions on the part of Purchaser are
necessary to authorize the execution, delivery or performance of this Agreement
or the consummation of the transactions contemplated hereby.

            (b) Enforceability. This Agreement constitutes a valid and binding
agreement of Purchaser, enforceable against Purchaser in accordance with its
terms. Neither the execution and delivery of this Agreement by Purchaser nor the
consummation by Purchaser of the transactions contemplated hereby shall conflict
with or constitute a violation of or default under any contract, commitment,
agreement, arrangement or restriction of any kind to which Purchaser is a party
or by which Purchaser is bound.


                                       7
<PAGE>

            (c) No Filings. Except for filings, authorizations, consents and
approvals as may be required under, and other applicable requirements of, the
HSR Act and the Exchange Act, (i) no filing with, and no permit, authorization,
consent or approval of, any state or federal public body or authority is
necessary for the execution of this Agreement by Purchaser and the consummation
by Purchaser of the transactions contemplated hereby and (ii) none of the
execution and delivery of this Agreement by Purchaser, the consummation by
Purchaser of the transactions contemplated hereby or compliance by Purchaser
with any of the provisions hereof shall (A) conflict with or result in any
breach of the organizational documents of Purchaser, or (B) result in a
violation or breach of, or constitute (with or without notice or lapse of time
or both) a default (or give rise to any third party right of termination,
cancellation, material modification or acceleration) under any of the terms,
conditions or provisions of any note, loan agreement, bond, mortgage, indenture,
license, contract, commitment, arrangement, understanding, agreement or other
instrument or obligation of any kind to which Purchaser is a party or by which
Purchaser or any of its properties or assets may be bound, or violate any order,
writ, injunction, decree, judgment, statute, rule or regulation applicable to
Purchaser or any of its properties or assets.

            8. Certain Covenants.

            (a) No Sale. No Stockholder shall sell, transfer, assign, pledge,
hypothecate or otherwise dispose of or limit its right to vote in any manner any
of the Owned Shares which are the subject matter of this Agreement except
pursuant to the terms hereof.

            (b) Further Assurances. From time to time, at the other party's
request and without further consideration, each party hereto shall execute and
deliver such additional documents and take all such further lawful action as may
be necessary or desirable to consummate and make effective, in the most
expeditious manner practicable, the transactions contemplated by this Agreement.

            9. Enforcement. The parties agree that irreparable damage would
occur in the event that any of the provisions of this Agreement were not
performed in accordance with their specific terms or were otherwise breached. It
is accordingly agreed that the parties shall be entitled to an injunction or
injunctions to prevent breaches of this Agreement and to enforce specifically
the terms and provisions of this Agreement in any court of the United States
located in the State of New York or in any New York State court located in the
Borough of Manhattan, this being in addition to any other remedy to which they
are entitled at law or in equity. In addition, each of the parties hereto (a)
consents to submit itself (without making such submission exclusive) to the
personal jurisdiction of any federal court located in the State of New York or
any New York State


                                       8
<PAGE>

court in the event any dispute arises out of this Agreement or any of the
transactions contemplated by this Agreement and (b) agrees that it will not
attempt to deny or defeat such personal jurisdiction by motion or other request
for leave from any such court.

            10. Miscellaneous.

            (a) Assignment. Neither this Agreement nor any of the rights,
interests or obligations under this Agreement shall be assigned or delegated, in
whole or in part, by operation of law or otherwise, by any of the parties hereto
without the prior written consent of the other parties, except that Purchaser
may assign its rights and obligations, in whole or in part, to any of its
Affiliates, but no such assignment shall relieve Purchaser of its obligations
hereunder if such assignee does not perform such obligations. Subject to the
preceding sentence, this Agreement will be binding upon, inure to the benefit
of, and be enforceable by, the parties and their respective successors and
assigns.

            (b) Amendments. This Agreement may not be modified, amended, altered
or supplemented except upon the execution and delivery of a written agreement
executed by the parties hereto.

            (c) Notices. All notices and other communications given or made
pursuant hereto shall be in writing and shall be deemed to have been duly given
or made (i) as of the date delivered or sent by facsimile if delivered
personally or by facsimile, (ii) on the first business day following dispatch by
an internationally recognized overnight courier service to a domestic addressee,
(iii) on the third business day following dispatch by an internationally
recognized overnight courier service to a international addressee and (iv) on
the tenth business day after deposit with a national mail service, if mailed by
registered or certified mail (postage prepaid, return receipt requested), in
each case to the parties at the following addresses (or at such other address
for a party as shall be specified by like notice, except that notices of changes
of address shall be effective upon receipt):

            (i) if to the Company, to

            Cellular Communications International, Inc.
            110 East 59th Street
            New York, New York 10022
            Attn: Richard Lubasch, Esq.
            Fax:  (212) 906-8497


                                       9
<PAGE>

            with a copy to:

            Skadden, Arps, Meagher & Flom LLP
            919 Third Avenue
            New York, New York 10022
            Attn: Thomas H. Kennedy, Esq.
            Fax:  (212) 735-2000

            (ii) if to purchaser, to

            Mannesmann AG
            Am Wallgraben 125
            D-70565 Stuttgart
            Germany
            Attn: Dr. Kurt J. Kinzius
            Fax:  49-711-990-2201

            and

            Olivetti S.p.A.
            Via Lorenteggio 257
            20152 Milan
            Italy
            Attn: Marco De Benedetti
            Fax:  39-2-4836-6700

            with a copy to:

            Willkie Farr & Gallagher
            787 Seventh Avenue
            New York, New York 10019-6099
            Attn: Neil Novikoff, Esq.
            Fax:  (212) 728-8111

            (iii) if to a Stockholder, as set forth on Schedule 1 hereto.

            (d) GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY, AND
CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, REGARDLESS OF
THE LAWS THAT MIGHT OTHERWISE GOVERN UNDER APPLICABLE PRINCIPLES OF CONFLICT OF
LAWS THEREOF.

            (e) Counterparts. This Agreement may be executed in one or more
counterparts, all of which shall be considered one and the same agreement and
shall become effective when one or more counterparts have been signed by each of
the parties and delivered to the other parties.

            (f) Interpretation. When a reference is made in this Agreement to a
Section, such reference shall be to a Section of this Agreement unless otherwise
indicated. The headings contained in this Agreement are for reference purposes
only and shall not affect in any way the meaning or interpretation of this
Agreement. Whenever the words "include", "includes" or


                                       10
<PAGE>

"including" are used in this Agreement, they shall be deemed to be followed by
the words "without limitation."

            (g) Entire Agreement; No Third-Party Beneficiaries. This Agreement,
the Option Agreement and the Merger Agreement (together with the other documents
and instruments referred to in the Option Agreement, the Merger Agreement and
the exhibits and disclosure schedules thereto) (a) constitute the entire
agreement and supersede all prior agreements and understandings, both written
and oral, between the parties with respect to the subject matter of this
Agreement, and (b) are not intended to confer upon any person other than the
parties hereto any rights or remedies.


                                       11
<PAGE>

            IN WITNESS WHEREOF, this Agreement has been duly executed and
delivered by the parties hereto on the date first above written.


                                         KENSINGTON ACQUISITION SUB, INC.

                                         By: /s/ Marco De Benedetti
                                             -----------------------------------
                                             Name: Marco De Benedetti
                                             Title: Co-President and
                                                    Co-Secretary

                                         By:
                                             -----------------------------------
                                             Name: Dr. Kurt Kinzius
                                             Title: Co-President and
                                                    Co-Secretary


                                         CELLULAR COMMUNICATIONS
                                         INTERNATIONAL, INC.

                                         By:
                                             -----------------------------------
                                             Name: William B. Ginsberg
                                             Title: Chairman of the Board of 
                                                    Directors, President,
                                                    Chief Executive Officer

<PAGE>

            IN WITNESS WHEREOF, this Agreement has been duly executed and
delivered by the parties hereto on the date first above written.


                                         KENSINGTON ACQUISITION SUB, INC.

                                         By: 
                                             -----------------------------------
                                             Name: Marco De Benedetti
                                             Title: Co-President and
                                                    Co-Secretary

                                         By: /s/ Kurt Kinzius
                                             -----------------------------------
                                             Name: Dr. Kurt Kinzius
                                             Title: Co-President and
                                                    Co-Secretary


                                         CELLULAR COMMUNICATIONS
                                         INTERNATIONAL, INC.

                                         By:
                                             -----------------------------------
                                             Name: 
                                             Title:
                                                   
                                                   

<PAGE>

            IN WITNESS WHEREOF, this Agreement has been duly executed and
delivered by the parties hereto on the date first above written.


                                         KENSINGTON ACQUISITION SUB, INC.

                                         By: 
                                             -----------------------------------
                                             Name: Marco De Benedetti
                                             Title: Co-President and
                                                    Co-Secretary

                                         By:
                                             -----------------------------------
                                             Name: Dr. Kurt Kinzius
                                             Title: Co-President and
                                                    Co-Secretary


                                         CELLULAR COMMUNICATIONS
                                         INTERNATIONAL, INC.

                                         By: /s/ William B. Ginsberg
                                             -----------------------------------
                                             Name: William B. Ginsberg
                                             Title: Chairman of the Board of 
                                                    Directors, President,
                                                    Chief Executive Officer

<PAGE>

                                             /s/ William B. Ginsberg
                                             -----------------------------------
                                             Name: William B. Ginsberg


                                             -----------------------------------
                                             Name: Richard J. Lubasch


                                             -----------------------------------
                                             Name: Stanton N. Williams


                                             -----------------------------------
                                             Name: Gregg Gorelick


                                             -----------------------------------
                                             Name: Del Mintz


                                             -----------------------------------
                                             Name: Sidney R. Knafel


                                             -----------------------------------
                                             Name: Alan J. Patricof


                                             -----------------------------------
                                             Name: Warren Potash


<PAGE>

                                             -----------------------------------
                                             Name: William B. Ginsberg

                                             /s/ Richard J. Lubasch
                                             -----------------------------------
                                             Name: Richard J. Lubasch


                                             -----------------------------------
                                             Name: Stanton N. Williams


                                             -----------------------------------
                                             Name: Gregg Gorelick


                                             -----------------------------------
                                             Name: Del Mintz


                                             -----------------------------------
                                             Name: Sidney R. Knafel


                                             -----------------------------------
                                             Name: Alan J. Patricof


                                             -----------------------------------
                                             Name: Warren Potash

<PAGE>

                                             -----------------------------------
                                             Name: William B. Ginsberg


                                             -----------------------------------
                                             Name: Richard J. Lubasch

                                             /s/ Stanton N. Williams
                                             -----------------------------------
                                             Name: Stanton N. Williams


                                             -----------------------------------
                                             Name: Gregg Gorelick


                                             -----------------------------------
                                             Name: Del Mintz


                                             -----------------------------------
                                             Name: Sidney R. Knafel


                                             -----------------------------------
                                             Name: Alan J. Patricof


                                             -----------------------------------
                                             Name: Warren Potash

<PAGE>

                                             -----------------------------------
                                             Name: William B. Ginsberg


                                             -----------------------------------
                                             Name: Richard J. Lubasch


                                             -----------------------------------
                                             Name: Stanton N. Williams

                                             /s/ Gregg Gorelick
                                             -----------------------------------
                                             Name: Gregg Gorelick


                                             -----------------------------------
                                             Name: Del Mintz


                                             -----------------------------------
                                             Name: Sidney R. Knafel


                                             -----------------------------------
                                             Name: Alan J. Patricof


                                             -----------------------------------
                                             Name: Warren Potash

<PAGE>

                                             -----------------------------------
                                             Name: William B. Ginsberg


                                             -----------------------------------
                                             Name: Richard J. Lubasch


                                             -----------------------------------
                                             Name: Stanton N. Williams


                                             -----------------------------------
                                             Name: Gregg Gorelick

                                             /s/ Del Mintz
                                             -----------------------------------
                                             Name: Del Mintz


                                             -----------------------------------
                                             Name: Sidney R. Knafel


                                             -----------------------------------
                                             Name: Alan J. Patricof


                                             -----------------------------------
                                             Name: Warren Potash

<PAGE>

                                             -----------------------------------
                                             Name: William B. Ginsberg


                                             -----------------------------------
                                             Name: Richard J. Lubasch


                                             -----------------------------------
                                             Name: Stanton N. Williams


                                             -----------------------------------
                                             Name: Gregg Gorelick


                                             -----------------------------------
                                             Name: Del Mintz

                                             /s/ Sidney R. Knafel
                                             -----------------------------------
                                             Name: Sidney R. Knafel


                                             -----------------------------------
                                             Name: Alan J. Patricof


                                             -----------------------------------
                                             Name: Warren Potash

<PAGE>

                                             -----------------------------------
                                             Name: William B. Ginsberg


                                             -----------------------------------
                                             Name: Richard J. Lubasch


                                             -----------------------------------
                                             Name: Stanton N. Williams


                                             -----------------------------------
                                             Name: Gregg Gorelick


                                             -----------------------------------
                                             Name: Del Mintz


                                             -----------------------------------
                                             Name: Sidney R. Knafel

                                             /s/ Alan J. Patricof
                                             -----------------------------------
                                             Name: Alan J. Patricof


                                             -----------------------------------
                                             Name: Warren Potash

<PAGE>

                                             -----------------------------------
                                             Name: William B. Ginsberg


                                             -----------------------------------
                                             Name: Richard J. Lubasch


                                             -----------------------------------
                                             Name: Stanton N. Williams


                                             -----------------------------------
                                             Name: Gregg Gorelick


                                             -----------------------------------
                                             Name: Del Mintz


                                             -----------------------------------
                                             Name: Sidney R. Knafel


                                             -----------------------------------
                                             Name: Alan J. Patricof

                                             /s/ Warren Potash
                                             -----------------------------------
                                             Name: Warren Potash


<PAGE>

                                                                    Exhibit 99.4


                                OPTION AGREEMENT


                  STOCK OPTION AGREEMENT, dated as of December 11, 1998 (this
"Agreement"), between Kensington Acquisition Sub, Inc., a Delaware corporation
("Purchaser"), and Cellular Communications International, Inc., a Delaware
corporation (the "Company").

                  WHEREAS, Purchaser and the Company, concurrently with the
execution and delivery of this Agreement, have entered into an Agreement and
Plan of Merger, dated as of the date hereof (the "Merger Agreement"), providing
for, among other things, the merger of Purchaser with and into the Company (the
"Merger"); and

                  WHEREAS, as a condition to the willingness of Purchaser to
enter into the Merger Agreement, Purchaser has required that the Company agree,
and in order to induce Purchaser to enter into the Merger Agreement the Company
has agreed, to grant Purchaser the Option (as defined below) upon the terms and
subject to the conditions of this Agreement.

                  NOW THEREFORE, in consideration of the foregoing and the
mutual promises, representations, warranties, covenants and agreements contained
herein and in the Merger Agreement, the parties hereto, intending to be legally
bound hereby, agree as follows:

                                    ARTICLE I
                                   THE OPTION

                  SECTION 1.1 Grant of Option. The Company hereby grants to
Purchaser an irrevocable option (the "Option") to purchase up to 4,338,133
newly-issued shares ("Shares") of the Common Stock, par value $.01 per share
("Company Common Stock"), of the Company at a purchase price per share of $65.75
(the "Exercise Price"), in the manner set forth in Sections 1.2 and 1.3 of this
Agreement; provided, however, that in no event shall the number of Shares for
which the Option is exercisable exceed 19.9% of the Company's issued and
outstanding shares of Company Common Stock. The number of Shares that may be
received upon the exercise of the Option and the Exercise Price are subject to
adjustment as herein set forth. This Agreement shall terminate, and the Option
hereby granted shall expire, on the earliest of (i) the Effective Time (as
defined in the Merger Agreement) and (ii) to the extent that no Option Notice
(as defined below) has theretofore been given by Purchaser, six (6) months after
any termination of the Merger Agreement pursuant to Section 8.1(b), (f)(ii),
(g), (h) or (i) thereof and at the time of termination of the Merger Agreement
pursuant to Section 8.1(a), (c), (d), (e) or (f)(i).

<PAGE>

hereunder in accordance with the terms of this Agreement (other than such time
as Purchaser is in material breach of its obligations under the Merger
Agreement), Purchaser (or its designee) may exercise the Option, in whole or in
part, if on or after the date hereof:

                         (a)  any corporation, partnership, individual, trust, 
unincorporated association, or other entity or "person" (as defined in Section
13(d)(3) of the Securities Exchange Act of 1934, as amended (the "Exchange
Act"),) other than Purchaser or any of its "affiliates" (as defined in the
Exchange Act) (a "Third Party"), shall have:

                              (i) commenced or announced an intention to
         commence a tender offer or exchange offer for any shares of Company
         Common Stock, the consummation of which would result in "beneficial
         ownership" (as defined under the Exchange Act) by such Third Party
         (together with all such Third Party's affiliates and "associates" (as
         such term is defined in the Exchange Act)) of 15% or more of the then
         outstanding voting equity of the Company (either on a primary or a
         fully diluted basis); or

                              (ii) acquired beneficial ownership of shares of
         Company Common Stock which, when aggregated with any shares of Company
         Common Stock already owned by such Third Party, its affiliates and
         associates, would result in the aggregate beneficial ownership by such
         Third Party, its affiliates and associates of 15% or more of the then
         outstanding voting equity of the Company (either on a primary or a
         fully diluted basis); provided, however, that "Third Party" for
         purposes of this clause (ii) shall not include any corporation,
         partnership, person, other entity or group which beneficially owns more
         than 15% of the outstanding voting equity of the Company (either on a
         primary or a fully diluted basis) as of the date hereof and that does
         not, after the date hereof, increase such ownership percentage by more
         than an additional 1% of the outstanding voting equity of the Company
         (either on a primary or a fully diluted basis); or

                              (b) any of the events described in Section 8.1(g)
         (so long as following the date hereof but prior to any termination
         there shall have been a Takeover Proposal Interest (as defined in the
         Merger Agreement)), 8.1(h) or 8.1(i) of the Merger Agreement that would
         allow Purchaser to terminate the Merger Agreement has occurred (but
         without the necessity of Purchaser having terminated the Merger
         Agreement).

                  In the event that Purchaser wishes to exercise all or any part
of the Option, Purchaser shall give written notice (the "Option Notice," with
the date of the Option Notice being hereinafter called the "Notice Date") to the
Company specifying 


                                       2
<PAGE>

the number of Shares it will purchase and a place and date (not earlier than
three (3) nor later than twenty (20) business days from the Notice Date) for
closing such purchase (a "Closing"). Purchaser's obligation to purchase Shares
upon any exercise of the Option is subject (at its election) to the conditions
that (i) no preliminary or permanent injunction or other order against the
purchase, issuance or delivery of the Shares issued by any federal, state or
foreign court of competent jurisdiction shall be in effect (and no action or
proceeding shall have been commenced or threatened for purposes of obtaining
such an injunction or order), (ii) any applicable waiting period under the
Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR Act")
shall have expired and (iii) there shall have been no material breach of the
representations, warranties, covenants or agreements of the Company contained in
this Agreement or the Merger Agreement; provided, however, that any failure by
Purchaser to purchase Shares upon exercise of the Option at any Closing as a
result of the nonsatisfaction of any of such conditions shall not affect or
prejudice Purchaser's right to purchase such Shares upon the subsequent
satisfaction of such conditions. Upon request by Purchaser, the Company will
promptly take all action required to effect all necessary filings by the Company
under the HSR Act.

                   SECTION 1.3 Purchase of Shares. At any Closing, (i) the
Company will deliver to Purchaser the certificate or certificates representing
the number of Shares being purchased in proper form for transfer upon exercise
of the Option in the denominations designated by Purchaser in the Option Notice,
and, if the Option has been exercised in part, a new Option evidencing the
rights of Purchaser to purchase the balance of the Shares subject thereto, and
(ii) Purchaser shall pay the aggregate purchase price for the Shares to be
purchased by delivery to the Company of a certified or bank cashier's check
payable in New York Clearing House funds to the order of the Company in the
amount of the Exercise Price times the number of Shares to be purchased.

                  SECTION 1.4 Adjustments Upon Share Issuances, Changes in
Capitalization, etc. (a) In the event of any change in Company Common Stock or
in the number of outstanding shares of Company Common Stock by reason of a stock
dividend, split-up, recapitalization, combination, exchange of shares or similar
transaction or any other change in the corporate or capital structure of the
Company (including, without limitation, the declaration or payment of an
extraordinary dividend of cash, securities or other property), the type and
number of the Shares to be issued by the Company upon exercise of the Option
shall be adjusted appropriately, and proper provision shall be made in the
agreements governing such transaction, so that Purchaser shall receive upon
exercise of the Option the number and class of shares or other securities or
property that Purchaser would have received in respect to the Company Common
Stock if the Option had 




                                       3
<PAGE>

been exercised immediately prior to such event, or the record date therefor, 
as applicable, and the holder of such Company Common Stock had elected to the 
fullest extent it would have been permitted to elect, to receive such 
securities, cash or other property.

                  (b) In the event that the Company shall enter into an 
agreement (i) to consolidate with or merge into any person, other than 
Purchaser or one of its subsidiaries, and shall not be the continuing or 
surviving corporation of such consolidation or merger, (ii) to permit any 
person, other than Purchaser or one of its subsidiaries, to merge into the 
Company and the Company shall be the continuing or surviving corporation, 
but, in connection with such merger, the then outstanding shares of Company 
Common Stock shall be changed into or exchanged for stock or other securities 
of the Company or any other person or cash or any other property, or then 
outstanding shares of Company Common Stock shall after such merger represent 
less than 50% of the outstanding shares and share equivalents of the 
surviving corporation or (iii) to sell or otherwise transfer all or 
substantially all of its assets to any person, other than Purchaser or one of 
its subsidiaries, then, and in each such case, proper provision shall be made 
in the agreements governing such transaction so that Purchaser shall receive 
upon exercise of the Option the number and class of shares or other 
securities or property that Purchaser would have received in respect of 
Company Common Stock if the Option had been exercised immediately prior to 
such transaction, or the record date therefor, as applicable, and the holder 
of such Company Common Stock had elected to the fullest extent it would have 
been permitted to elect, to receive such securities, cash or other property.

                  (c) The rights of Purchaser under this Section 1.4 shall be 
in addition to, and shall in no way limit, its rights against the Company for 
any breach of the Merger Agreement.

                  (d) The provisions of this Agreement shall apply with
appropriate adjustments to any securities for which the Option becomes
exercisable pursuant to this Section 1.4.


                                   ARTICLE II

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

                  The Company hereby represents and warrants to Purchaser as
follows:

                  SECTION 2.1 Authority Relative to this Agreement. The Company
is a corporation duly organized and validly existing under the laws of the State
of Delaware. The Company has all necessary power and authority (corporate and
otherwise) to execute and deliver this Agreement, to perform its obligations


                                       4
<PAGE>

hereunder and to consummate the transactions contemplated hereby. The execution
and delivery of this Agreement and the consummation by the Company of the
transactions contemplated hereby have been duly and validly authorized by the
Board of Directors of the Company, and no other corporate proceeding on the part
of the Company is necessary to authorize this Agreement or for the Company to
consummate such transactions. This Agreement has been duly and validly executed
and delivered by the Company.

                  SECTION 2.2 No Conflict; Required Filings and Consents. The
execution and delivery of this Agreement by the Company do not, and the
performance of this Agreement by the Company will not, (i) conflict with or
violate the Restated Certificate of Incorporation or Bylaws of the Company, (ii)
conflict with or violate any law, rule, regulation, order, judgment or decree
applicable to the Company or by which the Company is bound or affected, (iii)
result in any breach of or constitute a default (or an event that with notice or
lapse of time or both would become a default) under, or give to others any
rights of termination, amendment, acceleration or cancellation of, or result in
the creation of a lien or encumbrance of any kind on any of the Shares pursuant
to, any agreement, contract, indenture, notice or instrument to which the
Company is a party or by which the Company is bound or affected, or (iv) except
for applicable requirements, if any, of the HSR Act, the Exchange Act and the
Securities Act of 1933, as amended (the "Securities Act"), require any filing by
the Company with, or any permit, authorization, consent or approval of, any
governmental or regulatory authority, domestic or foreign.

                  SECTION 2.3 Option Shares. The Company has taken all necessary
corporate action to authorize and reserve for issuance upon exercise of the
Option a total of 4,338,133 Shares, and the Shares, when issued and delivered by
the Company to Purchaser (or its designee) upon exercise of the Option will be
duly authorized, validly issued, fully paid and nonassessable shares of Company
Common Stock, and will be free and clear of any security interests, liens,
claims, pledges, charges or encumbrances of any kind.


                                   ARTICLE III

                   REPRESENTATIONS AND WARRANTIES OF PURCHASER

                  Purchaser hereby represents and warrants to the Company as
follows:

                  SECTION 3.1 Authority Relative to this Agreement. Purchaser is
a corporation duly organized and validly existing under the laws of the State of
Delaware. Purchaser has all necessary power and authority (corporate and
otherwise) to execute and deliver this Agreement, to perform its obligations


                                       5
<PAGE>

hereunder and to consummate the transactions contemplated hereby. The execution
and delivery of this Agreement and the consummation by Purchaser of the
transactions contemplated hereby have been duly authorized by the Board of
Directors of Purchaser, and no other corporate proceeding on the part of
Purchaser is necessary to authorize this Agreement or for Purchaser to
consummate such transactions. This Agreement has been duly executed and
delivered by Purchaser and, assuming its due authorization, execution and
delivery by the Company, constitutes a legal, valid and binding obligation of
Purchaser, enforceable against Purchaser in accordance with its terms.

                  SECTION 3.2 No Conflict, Required Filing and Consents. The
execution and delivery of this Agreement by Purchaser do not, and the
performance of this Agreement by Purchaser will not, (i) conflict with or
violate the organizational documents of Purchaser, (ii) conflict with or violate
any law, rule, regulation, order, judgment or decree applicable to Purchaser or
by which Purchaser is bound or affected, (iii) result in any breach of or
constitute a default (or an event that with notice or lapse of time or both
would become a default) under, or give to others any rights of termination,
amendment, acceleration or cancellation of, any agreement, contract, indenture,
note or instrument to which Purchaser is a party or by which it is bound or
affected or (iv) except for applicable requirements, if any, of the HSR Act, the
Exchange Act and the Securities Act, require any filing by Purchaser with, or
any permit, authorization, consent or approval of, any governmental or
regulatory authority, domestic or foreign, except in the case of each of the
foregoing clauses (i) through (iv) for any such conflicts, violations, breaches,
defaults, failures to file or obtain the consent or approval of, or other
occurrences that would not cause or create a material risk of non-performance or
delayed performance by Purchaser of its obligations under this Agreement.

                  SECTION 3.3 Investment Intent. The purchase of Shares pursuant
to this Agreement is for the account of Purchaser for the purpose of investment
and not with a view to or for sale in connection with any distribution thereof
within the meaning of the Securities Act and the rules and regulations
promulgated thereunder.


                                   ARTICLE IV

                              ADDITIONAL AGREEMENTS

                  SECTION 4.1 Registration Rights; Listing of Shares. (a) Upon
the written request of Purchaser, the Company agrees to effect up to two
registrations under the Securities Act and any applicable state securities laws
covering any part or all of the Option (provided that only Shares will be
distributed to the public) and any part or all of the Shares purchased under
this 


                                       6
<PAGE>

Agreement, which registration shall be continued in effect for 90 days, unless,
in the written opinion of counsel to the Company, addressed to Purchaser and
reasonably satisfactory in form and substance to counsel for Purchaser, such
registration is not required for the sale and distribution of such Shares in the
manner contemplated by Purchaser. The registration effected under this paragraph
shall be effected at the Company's expense except for any underwriting
commissions. If Shares are offered in a firm commitment underwriting, the
Company will provide reasonable and customary indemnification to the
underwriters. In the event of any demand for registration pursuant to this
paragraph, the Company may delay the filing of the registration statement for a
period of up to 90 days if, in the good faith judgment of the Board of Directors
of the Company, such delay is necessary in order to avoid interference with a
planned material transaction involving the Company. In the event the Company
effects a registration of Company Common Stock for its own account or for any
other stockholder of the Company (other than on Form S-4 or Form S-8 or any
successor or similar form), it shall allow Purchaser to participate in such
registration; provided, however, that if the managing underwriters in such
offering advise the Company in writing that in their opinion the number of
shares of Company Common Stock requested to be included in such registration
exceeds the number which can be sold in such offering, the Company will include
the securities requested to be included therein pro rata among the holders
requesting to be included.

                  (b) The Company shall, at its expense, use its best efforts to
cause the Shares to be approved for listing on the Nasdaq National Market (the
"NNM") subject to notice of issuance, as promptly as practicable following the
date of this Agreement, and will provide prompt notice to the NNM of the
issuance of each Share pursuant to any exercise of the Option.

                  SECTION 4.2 Right to Sell Option. At any time that Purchaser
is entitled to exercise the Option pursuant to Section 1.2 hereof, Purchaser may
elect, in its sole discretion, to sell the Option to the Company in lieu of
exercising the Option. The Company shall be required to purchase the Option from
Purchaser on the third business day after the Purchaser gives the Company
written notice of such election for a cash price (payable by certified or
official bank check in same day funds to Purchaser or its designee) equal to the
product of the number of Shares then covered by the Option multiplied by the
excess over the Exercise Price of the greater of (x) the closing price of a
share of Company Common Stock on the NNM on the last trading day prior to the
date of such notice and (y) the highest price per share of Company Common Stock
paid or proposed to be paid to any holder thereof by any person in any Takeover
Proposal (as defined in the Merger Agreement). The Company shall give Purchaser
prompt written notice of the occurrence of any event set forth in Section 1.2
hereof and of any agreements or proposals relating to 


                                       7
<PAGE>

such an event, but the failure to give any such notice shall not limit
Purchaser's right to require the Company to purchase the Option pursuant to this
Section 4.2.

                  SECTION 4.3 Limitation on Profit. (a) Notwithstanding any
other provision of this Agreement, in no event shall Purchaser's Total Profit
(as defined below) exceed $14 million and, if it otherwise would exceed such
amount, Purchaser, at its sole election, shall either (a) reduce the number of
shares of Company Common Stock subject to the Option, (b) deliver to the Company
for cancellation Shares previously purchased by Purchaser, (c) pay cash to the
Company, or (d) any combination thereof, so that Purchaser's actually realized
Total Profit shall not exceed $14 million after taking into account the
foregoing actions.

                  (b) As used herein, the term "Total Profit" shall mean the
aggregate amount (before taxes) of the following: (i) (x) the net cash amounts
received by Purchaser pursuant to the sale of Shares (or any other securities
into which such Shares are converted or exchanged) to any unaffiliated party,
less (y) Purchaser's purchase price of such Shares, and (ii) any Notional Total
Profit (as defined below).

                  (c) As used herein, the term "Notional Total Profit" with
respect to the total number of Shares as to which Purchaser could propose to
exercise the Option shall be the Total Profit determined as of the date of such
proposal assuming that the Option were fully exercised on such date for such
number of Shares and assuming that such Shares, together with all other Shares
held by Purchaser and its affiliates as of such date, were sold for cash at the
closing market price for the Company Common Stock as of the close of business on
the preceding trading day (less customary brokerage commissions).

                  SECTION 4.4 Transfer of Shares; Restrictive Legend. Purchaser
agrees not to transfer or otherwise dispose of the Shares, or any interest
therein, without first providing to the Company an opinion of counsel for
Purchaser, reasonably satisfactory in form and substance to counsel for the
Company, to the effect that such transfer or disposition will not violate the
Securities Act or any applicable state law governing the offer and sale of
securities, and the rules and regulations thereunder. Purchaser further agrees
to the placement on the certificate(s) representing the Shares of the following
legend:

                  "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
         REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY BE
         REOFFERED OR SOLD ONLY IF SO REGISTERED OR IF AN EXEMPTION FROM SUCH
         REGISTRATION IS AVAILABLE."

provided that upon provision to the Company of any opinion of counsel for
Purchaser, reasonably satisfactory in form and 


                                       8
<PAGE>

substance to counsel for the Company, to the effect that such legend is no
longer required under the provisions of the Securities Act or applicable state
securities laws, the Company shall promptly cause new unlegended certificates
representing such Shares to be issued to Purchaser against surrender of such
legended certificates.

                  SECTION 4.5 Best Efforts. Subject to the terms and conditions
of this Agreement, Purchaser and the Company shall each use its best efforts to
take, or cause to be taken, all actions, and to do, or cause to be done, all
things necessary, proper or advisable under applicable laws and regulations to
consummate and make effective the transactions contemplated by this Agreement.
Each party shall promptly consult with the other and provide any necessary
information and material with respect to all filings made by such party with any
governmental or regulatory authority in connection with this Agreement or the
transactions contemplated hereby.

                  SECTION 4.6 Further Assurances. The Company shall perform such
further acts and execute such further documents and instruments as may
reasonably be required to vest in Purchaser the power to carry out the
provisions of this Agreement. If Purchaser shall exercise the Option, or any
portion thereof, in accordance with the terms of this Agreement, the Company
shall, without additional consideration, execute and deliver all such further
documents and instruments and take all such further action as Purchaser may
reasonably request for the purpose of effectively carrying out the transactions
contemplated by this Agreement.

                  SECTION 4.7 Survival. All of the representations, warranties
and covenants contained herein shall survive a Closing and shall be deemed to
have been made as of the date hereof and as of the date of each Closing.


                                    ARTICLE V

                                  MISCELLANEOUS

                  SECTION 5.1 Specific Performance. The parties hereto agree
that if any of the provisions of this Agreement were not performed in accordance
with their specific terms or were otherwise breached, irreparable damage would
occur, no adequate remedy at law would exist and damages would be difficult to
determine, and that the parties shall be entitled to specific performance of the
terms hereof, without any requirement for securing or posting any bond, in
addition to any other remedy at law or equity.

                  SECTION 5.2 Entire Agreement. This Agreement constitutes the
entire agreement of the parties hereto with 


                                       9
<PAGE>

respect to the subject matter hereof and supersedes all prior agreements and
understandings, both written and oral, between the parties with respect to the
subject matter hereof.

                  SECTION 5.3 Amendment; Assignment. This Agreement may not be
amended except by an instrument in writing signed by the parties hereto and
specifically referencing this Agreement. No party to this Agreement may assign
any of its rights or obligations under this Agreement without the prior written
consent of the other party hereto, except that the rights and obligations of
Purchaser hereunder may, upon written notice to the Company prior to or promptly
following such action, be assigned by Purchaser to any of its corporate
affiliates, but no such transfer shall relieve Purchaser of its obligations
hereunder if such transferee does not perform such obligations.

                  SECTION 5.4 Severability. The provisions of this Agreement
shall be deemed severable and the invalidity or unenforceability of any
provisions hereof or thereof shall not affect the validity and enforceability of
the other provisions hereof. If any provision of this Agreement, or the
application thereof, to any person or entity or any circumstances is invalid or
unenforceable, (i) a suitable and equitable provision shall be substituted
therefor in order to carry out, so far as may be valid and enforceable, the
intent and purpose of such invalid and unenforceable provision and (ii) the
remainder of this Agreement and the application of such provision to other
persons, entities or circumstances shall not be affected by such invalidity or
unenforceability, nor shall such invalidity or unenforceability affect the
validity or enforceability of such provision, or the application thereof, in any
other jurisdiction.

                  SECTION 5.5 Governing Law. This Agreement shall be governed
by, and construed in accordance with, the laws of the State of Delaware without
giving effect to the provisions thereof relating to conflicts of law.

                  SECTION 5.6 Counterparts. This Agreement may be executed in
two or more counterparts, each of which shall be deemed to be an original, but
each of which together shall constitute one and the same document.

                  SECTION 5.7 Notices. All notices and other communications
given or made pursuant hereto shall be in writing and shall be deemed to have
been duly given or made (i) as of the date delivered or sent by facsimile if
delivered personally or by facsimile, (ii) on the first business day following
dispatch by an internationally recognized overnight courier service to a
domestic addressee, (iii) on the third business day following dispatch by an
internationally recognized overnight courier service to a international
addressee and (iv) on the tenth business day after deposit with a national mail
service, if mailed by registered or certified mail (postage prepaid, return


                                       10
<PAGE>

receipt requested), in each case to the parties at the following addresses (or
at such other address for a party as shall be specified by like notice, except
that notices of changes of address shall be effective upon receipt):

                  (a)      if to the Company, to

                           Cellular Communications International, Inc.
                           110 East 59th Street
                           New York, New York  10022
                           Attn:  Richard Lubasch, Esq.
                           Fax:   (212) 906-8497

                  with a copy to:

                           Skadden, Arps, Slate, Meagher & Flom LLP
                           919 Third Avenue
                           New York, New York  10022
                           Attn:  Thomas H. Kennedy, Esq.
                           Fax:   (212) 735-2000

                  (b) if to Purchaser, to

                           Mannesmann AG
                           Am Wallgraben 125
                           D-70565 Stuttgart
                           Germany
                           Attn:  Dr. Kurt J. Kinzius
                           Fax:   49-711-990-2201

                           and

                           Olivetti S.p.A.
                           Via Lorenteggio 257
                           20152 Milan
                           Italy
                           Attn:  Marco De Benedetti
                           Fax:   39-2-4836-6700

                  with a copy to:

                           Willkie Farr & Gallagher
                           787 Seventh Avenue
                           New York, New York 10019-6099
                           Attn:  Neil Novikoff, Esq.
                           Fax:   (212) 728-8111

                  SECTION 5.8 Binding Effect. The terms of this Agreement shall
inure to the benefit of and be binding upon by the successors and assigns of the
parties hereto. Nothing expressed or referred to in this Agreement is intended
or shall be construed to give any person other than the parties to this
Agreement, or their respective successors or assigns, any legal 


                                       11
<PAGE>

or equitable right, remedy or claim under or in respect of this Agreement or any
provision contained herein.


                                       12
<PAGE>

                  IN WITNESS WHEREOF, each of the Company and Purchaser have
caused this Agreement to be executed on its behalf by its officers thereunto
duly authorized, all as of the date first above written.

                                    CELLULAR COMMUNICATIONS 
                                    INTERNATIONAL, INC.


                                    By: /s/ William Ginsberg
                                       -----------------------------
                                       Name: William B. Ginsberg
                                       Title: Chairman of the Board of
                                              Director, President,
                                              Chief Executive Officer


                                    KENSINGTON ACQUISITION SUB, INC.


                                    By: /s/ Marco De Benedetti
                                       -----------------------------
                                       Name: Marco De Benedetti
                                       Title: Co-President and
                                              Co-Secretary


                                    By: /s/ K. Kinzius
                                       -----------------------------
                                       Name: Dr. Kurt Kinzius
                                       Title: Co-President and
                                              Co-Secretary



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