AMENDED AND RESTATED
                              EMPLOYMENT AGREEMENT


     This Amended and Restated Employment Agreement dated April __, 1997 between
Barry K. Lewis, an individual residing at 119 Albert's Hill Rd., Sandy Hook,
Conn. 06482 (the "Employee") and International Telecommunication Data Systems,
Inc., a Delaware corporation, with offices at 969 High Ridge Road, Suite 205,
Stamford, Connecticut 06905 (hereinafter referred to as "Corporation") amends
and restates in its entirety the Employment Agreement dated June 1994 between
the Employee and the Corporation (the "Original Agreement"). The Original
Agreement shall have no further force and effect.

     WHEREAS, the Corporation desires to employ the Employee, and the Employee
desires to serve as an employee of Corporation on the terms and conditions
hereinafter set forth.

     NOW THEREFORE, in consideration of the mutual covenants and promises of the
parties hereto, the Corporation and the Employee agree as follows:

     1. Employment: The Corporation hereby agrees to employ the Employee as
Senior Vice-President of Client Management and the Employee hereby agrees to
function as such Senior Vice-President of Client Management for the Corporation
on the terms and conditions hereinafter stated, subject to the directives of the
Chief Executive Officer and Board of Directors of the Corporation.

     2. Term of Employment: The term of this Agreement shall begin on the date
hereof and shall continue in full force and effect until July 4, 1999, unless
sooner terminated as provided herein.

     3. Compensation:

        (a) During the term of this Agreement, for all services rendered by the
Employee under this Agreement, the Corporation shall pay the Employee an annual
base salary of $145,000.00 per annum, payable in arrears at a rate of $12,083.33
on the last day of each month. All compensation payable under this Agreement
shall be subject to applicable federal and state withholding tax requirements
and other deductions approved by the Employee. The Employee's base salary may be
increased on an annual basis, in the sole and absolute discretion of the Board
of Directors of the Corporation, on each anniversary date of the commencement of
this Agreement.

        (b) Pursuant to the Corporation's 1996 Stock Incentive Plan (the
"Plan"), the Corporation hereby grants the Employee options to purchase 25,000
shares of Common Stock of Corporation at the exercise price of $14.75 per share,
vesting over a 4 year period, subject to the terms and conditions of the Plan.

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        (c) The Employee may receive an annual year end performance bonus in the
sole and absolute discretion of the Board of Directors of the Corporation.

     4. Fringe Benefits:

        (a) During the term hereof, subject to the Employee's insurability,
Corporation shall provide the Employee and his immediate family, at no cost to
the Employee, with medical and hospitalization insurance coverage similar to
that offered to other officers of the Corporation. During the term hereof,
Corporation shall provide the Employee, at no cost to the Employee, with long
term disability insurance coverage similar to that offered to other officers of
the Corporation.

        (b) During the term hereof, Corporation shall provide the Employee, at
no cost to the Employee, with term life insurance coverage on the Employee's
life. The amount of insurance currently provided by such policies on the
Employee's life equal $150,000.00. The proceeds of such life insurance policies
shall be payable to the Employee's named beneficiary.

        (c) The Employee is authorized to incur on behalf of the Corporation
only reasonable expenses (including travel and entertainment) in connection with
the business of the Corporation. Any such expenses in excess of one thousand
dollars ($1,000.00) per month, in the aggregate, must be approved in advance by
Corporation, to the extent possible, but in all events written approval shall be
required for any such monthly expense in excess of two thousand five hundred
dollars ($2,500.00). Corporation shall reimburse Employee for all such
reasonable expenses incurred in connection with the business of Corporation upon
the presentation by Employee, from time to time, of an itemized account of such
expenditures, which account shall confirm, in form and substance, to applicable
rules and regulations of the Internal Revenue Service.

     5. Duties and Extent of Services: Upon the execution of this Agreement and
throughout its term, the duties of the Employee shall include, but are not
limited to the following:

        (a) Provide managerial and executive support to the Corporation;

        (b) Provide marketing and sales support for the products of the
Corporation;

        (c) Provide a research and development function for the Corporation with
regard to the mobile telecommunications industry;


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        (d) Develop information to provide support for the development of the
clients of the Corporation;

        (e) Support and development of clients as directed by the Corporation;
and

        (f) Such other duties and responsibilities as may be assigned by the
Board from time to time.

        (g) The Employee will work exclusively for the Corporation during the
term of this Agreement. The Employee shall exert his best efforts and shall
devote no less than the greater of: (i) forty (40) hours per week, or (ii) the
amount of time necessary for the Employee to perform his duties with regard to
the business and affairs of the Corporation in accordance with this Agreement.
During the term of this Agreement, the Employee shall not, directly or
indirectly, alone or as a member of a partnership, or as an officer, director,
shareholder, owner, agent or the Employee of any other corporation, be engaged
in or concerned with any other compensable duties or pursuits whatsoever
requiring this personal services without the prior written consent of the
Corporation, which consent may be withheld for any reason or for no reason.

     6. Vacation: During each year of the term of this Agreement, the Employee
shall be entitled to three (3) weeks vacation, the time of which shall be
determined after consultation with the Chief Executive Officer of the
Corporation. For purposes of this Section 6, the Employee shall be entitled to
carry forward any unused vacation time from one period to another.

     7. Termination: The Employee's employment hereunder shall terminate on the
date set forth in Section 2 hereof, or sooner upon the occurrence of any of the
following events:

        (a) The Employee's death;

        (b) The termination of the Employee's employment hereunder by
Corporation, at its option, to be exercised by written notice from Corporation
to the Employee, upon the Employee's incapacity or inability to perform his
services as contemplated herein for a period of at least seventy-five (75)
consecutive days or an aggregate of one hundred (100) consecutive or
non-consecutive days during any twelve (12) month period during the term hereof
due to the fact that his physical or mental health shall have become impaired so
as to make it impossible or impractical for him to perform the duties and
responsibilities contemplated for him hereunder; or 

        (c) The termination of the Employee's employment for "cause" hereunder
by Corporation, at its option, to be exercised by written notice from


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<PAGE>


Corporation to the Employee. The term "cause," as used herein, shall mean: (i)
the Employee's inability or incapacity to perform his duties and/or services in
accordance with the reasonable expectations of the Corporation, (ii) the
Employee's willful misconduct or gross negligence in the performance of his
duties on behalf of the Corporation, or the Employees dishonesty in the
performance of his duties on behalf of the Corporation, (iii) the neglect,
failure or refusal of the Employee to carry out any reasonable request of the
Chief Executive Officer or Board of Directors of the Corporation for the
provision of services hereunder, (iv) the material breach of any provision of
the Agreement by the Employee or (v) the Employee's plea of guilty or nolo
contendere to, or conviction of any crime involving moral turpitude, common law
fraud, dishonesty, theft, or unethical conduct;

        (d) Cessation of the Corporation's business.

     In the event of any such termination, Corporation shall pay to the Employee
such portion of his annual base salary payable to the Employee to the date such
termination becomes effective, plus an amount equal to one week of annual base
salary for each completed year of service to the Corporation and thereafter the
Employee shall have no claim for any further compensation hereunder; provided
however, that in the event of the Employee's death, his death shall be deemed to
have occurred on the last day of the month in which he dies.

     8. Restrictions On the Employee: During the period commencing on the date
hereof and ending two (2) years after the termination of the Employee's
employment by Corporation for any reason, the Employee shall not directly or
indirectly induce or attempt to induce any of the employees of Corporation to
leave the employ, of Corporation.

     9. Covenant Not To Compete: During the period commencing on the date
hereof, and ending one (1) year after the termination of the Employee's
employment for any reason, the Employee shall not, except as a passive investor
in publicly held companies, directly or indirectly engage in, associate with, or
own or control any interest in, or act as principal, director, officer, agent,
or the Employee of, or consultant to: (i) CBIS, CSC, EDS, ALLTEL INFORMATION
SYSTEMS, LHS, AMS, DANET or their successors or assigns, or (ii) any person,
firm or corporation, located in the eastern third of the United States, whose
activity is (i) a venture or business, substantially similar to that of
Corporation and/or (ii) which is in competition with the Corporation.
Notwithstanding anything to the contrary contained herein, to the extent
Corporation (i) makes an absolute assignment of the bulk of its assets for the
benefit of creditors, (ii) consents to the appointment of a bankruptcy trustee,
(iii) institutes bankruptcy proceedings or (iv) experiences a cessation, the
provisions of this Section 9 shall lapse.

     10. Proprietary Information:


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        (a) For purposes of this Agreement, "proprietary information" shall mean
any information relating to the business of Corporation or any entity in which
Corporation has an ownership interest that has not previously been publicly
released by duly authorized representatives of Corporation and shall include
(but shall not be limited to) information encompassed in all proposals,
marketing and sales plans, financial information, costs, pricing information,
computer programs, customer information, customer lists, and all methods,
concepts or ideas in or reasonably related to the business of Corporation or any
entity in which Corporation has an interest. The Employee agrees to regard and
preserve as confidential all proprietary information, whether he has such
information in his memory or in writing or other physical form. The Employee
will not, without written authority from Corporation to do so, directly or
indirectly use for his benefit or purposes, nor disclose to others, either
during the term of his employment hereunder or thereafter, except as required by
the conditions of his employment hereunder, any proprietary information. The
Employee agrees not to remove from the premises of Corporation or any subsidiary
or affiliate of Corporation, except as an employee of Corporation in pursuit of
the business of Corporation or any of its subsidiaries, affiliates or any entity
in which Corporation has an ownership interest, or except as specifically
permitted in writing by Corporation, any document or object containing or
reflecting any proprietary information. The Employee recognizes that all such
documents and objects, whether developed by him or by someone else during the
term of his employment with Corporation, are the exclusive property of
Corporation.

        (b) All proprietary information and all of the Employee's interest in
trade secrets, trademarks, computer programs, customer information, customer
lists, employee lists, products, procedure, copyrights and developments
hereafter to the end of the period of employment hereunder developed by the
Employee as a result of, or in connection with, his employment hereunder, shall
belong to Corporation; and without further compensation, but at Corporation's
expense, forthwith upon request of Corporation, the Employee shall execute any
and all such assignments and other documents and take any and all such other
action as Corporation may reasonably request in order to vest in Corporation all
the Employee's right, title and interest in and all of the aforesaid items, free
and clear of liens, charges and encumbrances.

        (c) The Employee expressly agrees that the covenants set forth in
Sections 8, 9, and 10 of this Agreement are being given to Corporation in
connection with the employment of the Employee by Corporation and that such
covenants are intended to protect Corporation against the competition by the
Employee, within the terms stated, to the fullest extent deemed reasonable and
permitted in law and equity. In the event that the foregoing limitations upon
the conduct of the Employee are beyond those permitted by law, such limitations,
both as to time and 


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geographical area, shall be, and be deemed to be, reduced in scope and effect to
the maximum extent permitted by law.

     11. Injunctive Relief: The Employee acknowledges that the injury to
Corporation resulting from any violation by him of any of the covenants
contained in this Agreement will be of such a character that it cannot be
adequately compensated by money damages, and, accordingly, Corporation may, in
addition to pursuing its other remedies, obtain an injunction from any court
having jurisdiction of the matter restraining any such violation; and no bond or
other security shall be required in connection with such injunction.

     12. Representation of the Employee: The Employee represents and warrants
that neither the execution and delivery of this Agreement nor the performance of
his duties hereunder violates the provisions of any other agreement to which he
is a party or by which he is bound, including, but not limited to, any
Cincinnati Bell Information Systems, Inc. employment agreement or covenant not
to compete.

     13. Parties; Non-Assignability: As used herein, the term "Corporation"
shall mean and include Corporation and any subsidiary or affiliate thereof and
any successor thereto unless the context indicates otherwise. This Agreement and
all rights hereunder are personal to the Employee and shall not be assignable by
him and any purported assignment shall be null and void and shall not be binding
on Corporation.

     14. Entire Agreement: This Agreement contains the entire agreement between
the parties hereto with respect to the transactions contemplated herein and
supersedes all previous representations, negotiations, commitments, and writing
with respect thereto.

     15. Amendment or Alteration: No amendment or alteration of the terms of
this Agreement shall be valid unless made in writing and signed by all of the
parties hereto.

     16. Choice of Law: This Agreement shall be governed by and construed in
accordance with the laws of the State of Connecticut, except a provision of that
law which would refer resolution of any issue to another jurisdiction. The forum
for resolution of any dispute shall be the State of Connecticut.

     17. Arbitration: Any controversy, claim, or breach arising out of or
relating to this Agreement or the breach thereof may, in the sole discretion of
the Corporation, be settled by arbitration in Stamford, Connecticut in
accordance with the rules of the American Arbitration Association and the
judgment upon the award rendered shall be entered by consent in any court having
jurisdiction thereof.


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     18. Waiver of Breach: The waiver by any party hereto of a breach of any
provision of this Agreement shall not operate or be construed as a waiver of any
subsequent breach by any of the parties hereto.

     19. Binding Effect: The terms of this Agreement shall be binding upon and
inure to the benefit of the parties hereto and their respective personal
representatives, heirs, administrators, successors, and permitted assigns.

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the day
and year first above written.

                                        CORPORATION;

                                        INTERNATIONAL TELECOMMUNICATION 
                                        DATA SYSTEMS, INC.


                                        By     /s/ Charles L. Bakes
                                               ------------------------------
                                               Charles L. Bakes, President

                                        EMPLOYEE:


                                        By:     /s/ Barry K. Lewis
                                                -----------------------------
                                                Barry K. Lewis