Document:

<PAGE>

                                                                   EXHIBIT 10.24

                                                    Vodapage Limited
                                                    The Courtyard,
                                                    2-4 London Road, Newbury,
                                                    Berkshire RC13 1JL, England
                                                    Telephone: (0635) 33251
                                                    Facsimile: (0635) 36260

Our Ref:     PRW/7866

17th May 1994

STRICTLY PERSONAL
-----------------

Mr E Langston
23 Manilla Road
Clifton
Bristol
BS8 4EB

Dear Ted

On behalf of Ian Maxwell, I am pleased to offer you an appointment as Financial
Director for Vodapage Limited. Your duties and responsibilities will be as
outlined at interview.

Your salary in this position will be [pounds] 80,000 per annum, paid monthly in
arrears, and includes the Annual Salary Review to be held in July.

Your basic hours of work will be 8.30 am to 5.15 pm Monday to Thursday and 8.30
am to 4.00 pm on Friday. An Employee Information Handbook is enclosed which
outlines the general terms and conditions of employment within Vodafone Group.

As a Director of the Company, you will be entitled to the use of a Company Car.
All running costs of the vehicle including fuel costs will be paid by the
Company. You may choose a vehicle from the Director's Grade of the Company Car
List.

This position will entitle you to be a member of the Vodafone Group Directors
Pension Scheme and membership of this scheme is automatic. The scheme has a 1/30
accrual rate, free life insurance and other benefits and an employee
contribution rate of 3.5% of salary. A booklet describing the Scheme benefits is
enclosed in confidence for your detailed information.

You will also be entitled to Company paid membership of BUPA for yourself and
family. I will forward the BUPA documentation to you under separate cover in due
course.

<TABLE>
<S>                                                                                         <C>
[LOGO]
____________________________________________________________________________________________  VADAFONE
Directors: GA Whent CBI (Chairman), IR Maxwell (Managing), MW Payne, SC Phillips                GROUP
Registered Office: The Courtyard. 2-4 London Road. Newbury, Berkshire, England. Registered in
England No. 795531
</TABLE>
<PAGE>

Page 2

17th May 1994

Mr E Langston

The Company will assist with the cost of your relocation to a reasonable
travelling distance (max. 25 miles) from Newbury. Subject to production of
receipts, the Company will reimburse costs for Estate Agents Fees, Solicitors
Fees, Stamp Duty and removal to the new house. A Disturbance Allowance of
(pounds)8,000 will be offered for replacement of soft furnishings. An
arrangement for temporary accommodation will also be available. As you are
aware, under the recent legislation relocation expenses above (pounds)8,000 will
be subject to tax.

The offer of relocation assistance is available for one year from commencement
of service. It will be a condition that if you leave our employment within two
years of relocation, the relocation assistance will become repayable to the
Company.

The Company gives an entitlement to 27 days of paid holiday per year and a pro
rata arrangement operates in the first part year.

I enclose a duplicate of this letter. We hope you will accept this offer and I
ask you to sign the duplicate and return it to me, together with the signed
Employment Handbook receipt form and the Driver Declaration Form, also
indicating when you will be able to commence employment.

Yours sincerely

/s/ P R Williams

P R Williams
Personnel Director
------------------

I hereby accept the position of Financial Director on the terms and conditions
outlined and confirm that I will be joining on: To be notified.

                       ................................

                        /s/ Edward Langston
Signed:                ................................

                        19th May 1994
Dated:                 ................................
<PAGE>

P R Williams                                             [LOGO]  Vodafone
Group Personnel Director

Our Ref:  PRW/14191

2 January 1998

STRICTLY PERSONAL
-----------------
ADDRESSEE ONLY
--------------

Mr E Langston
Vodafone Distribution Ltd

Dear Ted

I am pleased to tell you that the Company has decided to adopt a standard six
month notice requirement to terminate employment for all Directors with a UK
employment contract. This requirement will apply to notice of termination both
to and from the Company. All other terms and conditions will remain as stated in
the Employee Handbook.

Acceptance of this new notice period is not compulsory whilst you remain in your
current position and you may retain the present one month notice requirement if
you wish.

Please advise me of your decision by signing the relevant section and returning
the enclosed copy of this letter. Any change will be effective from the date of
signing. If you have any questions please contact me.

Yours sincerely

/s/ P R Williams

P R Williams
------------

Please complete one section below

------------------------------------------------------------------------------
I hereby accept the increase in notice period to six months.

         /s/ Edward Langston                      12th January 1998
Signed: .............................. Dated: ................................

------------------------------------------------------------------------------
I wish to remain on one month's notice.

Signed: .............................. Dated: ................................

Vodafone Group Services Limited
The Courtyard, 2-4 London Road, Newbury, Berkshire RG14 1JX
Telephone: (01635) 33251, Facsimile: (01635) 36260
E-Mail: phil.williams@vf.vodafone.co.uk

<TABLE>
<S>                                                                                         <C>
____________________________________________________________________________________________  [LOGO]
Registered Office: The Courtyard. 2-4 London Road. Newbury, Berkshire, England. Registered in
England No. 2370135
</TABLE>
<PAGE>

Our ref: JDG/cs/S637

15 December 1999

Strictly Personal
-----------------

Mr E Langston
US/Asia Pacific Region

Dear Ted

Following the discussions, I am pleased to confirm the terms which will apply
for your proposed secondment to the US wireless joint venture with Bell
Atlantic. The details are as follows:-

1.   Position and Duties
     -------------------

     Your job title during the secondment will be Chief Financial Officer,
     within the US wireless joint venture with Bell Atlantic, and your duties
     will be as described to you. You Will report to the Chief Executive Officer
     of the joint venture with a functional reporting line to Ken Hydon. You
     will be based in the New York area within travelling distance of the joint
     venture's HQ.

2.   Status
     ------

     The basis of the secondment will be family status.

3.   Medical Examinations
     --------------------

     The secondment is subject to you and your family undergoing a medical
     examination with satisfactory outcome which shows medical fitness for
     work/residence in the USA. The fees will be paid for by the Company.

4.   Period of Secondment
     --------------------

     The secondment will be effective from 1 April 2000 or a later agreed date
     when the joint venture is implemented and will be for a period of 2 years.
     With mutual agreement, the secondment may be extended. The Company will
     give you assistance in obtaining any work permits and entry visas that are
     required. The Company reserves the right to terminate the assignment and
     return you to the UK at any time during the secondment period, giving as
     much notice as possible.
<PAGE>

-2-

Strictly Personal
-----------------

Mr E Langston

5.   Salary
     ------

     Your salary will be increased to (pounds)220,000 per annum to be next
     reviewed in July 2000.

6.   Special Bonus
     -------------

     You will be eligible for a Bonus of (pounds)66,000 for each financial year
     or part year of your secondment in the USA. This bonus will be awarded at
     the discretion of the Company based on the performance of the JV against
     the budget and the successful establishment and operation of the JV finance
     function.

7.   Overseas Allowance
     ------------------

     An overseas allowance of 20% of basic salary ((pounds)44,000 per annum)
     will be paid at the same frequency as salary payment.

8.   Income Tax
     ----------

     While it will be your own responsibility to undertake payments of local tax
     whilst resident in the USA, it is not the intention that you pay more tax
     during the secondment. Therefore, if the total tax paid on income and
     benefits throughout the secondment exceeds that payable had you worked in
     the UK with the same earnings, the Company will make a further payment in
     compensation. Any calculations will be performed by Ernst & Young, the
     Company's advisors of overseas personal tax matters. Steve Coombs of Ernst
     & Young's Reading office (telephone number 0118 928 1636) will provide
     advice on your individual tax situation.

9.   Hours of Work
     -------------

     Your hours of work and length of working week will be those normally
     applying to the USA. You will however, be expected to be available outside
     business hours in the usual way, in dealing with Company business and
     other urgent matters. Your salary and allowance take into account the need
     to work beyond normal UK hours

10.  Holidays
     --------

     Your UK holiday entitlement will continue to apply during the secondment to
     the USA.

11.  Air Flights
     -----------

           a)  A Business class air passage plus 50 kilos excess baggage
               allowance will be provided at the start of your secondment.

           b)  A Business class air passage plus 50 kilos excess baggage for
               your partner and 25 kilos per child will be provided when your
               family join you on secondment.
<PAGE>

-3-

Strictly Personal
-----------------

Mr E Langston

          c)   Once accompanied you and your family will be provided with one
               Business class return air passage to the UK per year to visit
               family or holiday.

          d)   Business class air passages plus 50 kilos excess baggage for each
               adult and 25 kilos per child will be provided at the and of your
               secondment.

12.  Accomodation
     ------------

     Initially hotel accommodation, then rented accommodation including
     utilities at a cost per month to be agreed, will be provided by the
     Company. While you are in hotel accommodation your meal expenses will be
     paid for by the Company. Once rented accommodation has been provided these
     and other living expenses will be your responsibility.

13.  Medical Treatment
     -----------------

     The Company will pay for local medical treatment for you and your family
     whilst resident in the USA and provide medical insurance on your behalf
     over your period of service overseas.

14.  Termination
     -----------

     Your period of notice will be unchanged during the secondment.

15.  Pension and Life Assurance Scheme
     ---------------------------------

     Your membership of the Vodafone Group Pension Scheme will remain unchanged.

16.  Company Car
     -----------

     You will be provided with a Company car during the secondment. All petrol
     and running costs will be reimbursed, against receipts, by the Company.
     Your wife will continue to use your UK company car until your family joins
     you in the US.

17.  Personal Effects Insurance
     --------------------------

     Insurance cover of up to (pounds)5,000 in value will be provided for your
     personal effects taken with you overseas. Replacement value of items
     claimed under this policy will be at the Company's discretion. You are
     advised to check that this is adequate for the personal effects that you
     plan to take with you and arrange any additional cover that you consider
     necessary.

18.  On return to be UK
     ------------------

     At the end of the secondment you will return to an equivalent position
     within the UK with continuity of employment in all aspects.
<PAGE>

-4-

Strictly Personal
-----------------

Mr E Langston

19.  Governing Law
     -------------

     These terms and conditions and other contractual documents to which these
     conditions relate shall be governed by and take effect in all aspects
     according to English Law.

A duplicate copy of this letter is enclosed. Would you please sign this letter
and return it to me to confirm your acceptance of the secondment. I will then
discuss the various details with you in due course.

Yours sincerely

/s/ P R Williams

P R Williams
Group Human Resources Director
------------------------------

I hereby accept the terms and conditions of the secondment to the US wireless
joint venture with Bell Atlantic as described above.

          /s/ Edward Langston
Signed ................................................................

          4/1/00
Dated .................................................................<PAGE>

                                                                   EXHIBIT 10.25

                                   AGREEMENT

     THIS AGREEMENT is entered into between Cellco Partnership (herein the
"Company") and Lowell C. McAdam (herein the "Executive"), effective as of the
date of the Stage I closing of the wireless joint venture between Bell Atlantic
Corporation and Vodafone AirTouch Plc ("Effective Date"). References to the
"Company" herein shall include Cellco Partnership, any company controlled by or
under common control with Cellco Partnership, any company which subsequent to
the effective date of this Agreement carries on all or substantially all of the
business of Cellco Partnership and affiliates of Cellco Partnership.

     WHEREAS, Executive presently is employed by Vodafone AirTouch Plc, an
English public limited company, or a subsidiary or affiliate thereof (herein
"Vodafone"); and

     WHEREAS, the Company and Vodafone have entered into a certain Secondment
Agreement (herein the "Secondment Agreement") pursuant to which designated
employees of Vodafone will be seconded to the Company starting on the date of
the Stage I closing of the wireless joint venture between Bell Atlantic
Corporation and Vodafone, and continuing for a specified period thereafter
(herein the "Secondment Period"); and

     WHEREAS, the Company desires to utilize the services of Executive during
the Secondment Period and to hire Executive as an employee of the Company
thereafter, and Executive desires to render services to the Company during the
Secondment Period and to accept employment by the Company thereafter; and

     WHEREAS, one of the purposes of the Company is, through contracts and
other business relationships, to operate a national, unified, wireless
communications business, including without limitation, cellular, PCS, paging
and other CMRS businesses; and

     WHEREAS, the services to be rendered by Executive are, and for the
duration of the Secondment Period and the term of this Agreement will continue
to be, of a unique character and of incalculable value to the Company; and

     WHEREAS, if Executive were to engage in "competitive activities," as
defined below, during the Secondment Period or the term of this Agreement or in
violation of the restrictions set forth in this Agreement, the Company would
suffer irreparable injury; and

     WHEREAS, the success of the Company depends in substantial part on the
competitive advantages afforded by the management and technical skills provided
by Executive; and

     WHEREAS, Executive desires to participate in a certain long-term incentive
plan to be designed by the Company (herein the "Plan");
<PAGE>

     NOW, THEREFORE, the parties hereto, acknowledging the mutual consideration
embodied in the terms and conditions of this Agreement and intending to be
legally bound, hereby agree as follows:

1. Term. Executive agrees to render services to the Company during the
Secondment Period and the Company agrees to accept such services on the terms
set forth herein, subject to the Secondment Agreement. The Executive further
agrees to be employed by the Company and the Company agrees to employ Executive
thereafter, starting on the day after the end of the Secondment Period and
ending three years from the effective date of this Agreement, subject to the
termination provisions set forth in Sections 4 and 5 (herein the "Term"). If at
the expiration of the Term the parties have not entered into a new agreement,
then this Agreement shall be extended on a month-to-month basis, except as
expressly modified by the parties in writing.

2. Duties. During the Secondment Period and the Term (including any
month-to-month extensions of the Term pursuant to Section 1), Executive shall:

     (a) faithfully and diligently perform all such acts and duties and furnish
such services as the Company, its Board of Representatives, its Chief Executive
Officer, its Chief Operating Officer, or his or their designees shall direct,
and perform all acts in the ordinary course of the Company's business
reasonably necessary to the advancement of the Company's best interests;

     (b) devote his full time, energy and skill to the business of the
Company and to the promotion of the Company's best interests, except during
vacations and other authorized absences; and

     (c) comply with all federal, state and local laws and any applicable
foreign laws, and abide by the Company's code of business conduct and other
policies of the Company while discharging his obligations under this Agreement
or otherwise engaging in conduct, whether personal or business-related, which
may impact the Company's business.

3. Compensation.

     (a) Executive shall be shall compensated as set forth below for all
services performed by him for the Company, subject to review from time to time
in accordance with the Company's practices for similarly situated executives:

          (i)   Base salary at the annualized rate of $480,000, payable in
     periodic installments by Vodafone during the Secondment Period in
     accordance with the Secondment Agreement, and by the Company during the
     Term in accordance with its regular payroll practices;

          (ii)  Short Term Incentive at a target rate of 75% of base salary, in
     accordance with Company's Short Term Incentive Plan;

          (iii) Amounts due from Vodafone pursuant to that certain employment
     agreement entered into between Executive and Vodafone as of June 12, 1997,
     and

                                      -2-
<PAGE>

     pursuant to which Executive shall have a vested entitlement to $310,000 one
     year after the effective date of this Agreement, payable in cash with
     interest accrued thereon at the same rate paid by the Vodafone AirTouch
     deferred compensation plan, as well as a vested entitlement to an
     additional $620,000 at the end of the Term hereof (without regard to any
     extensions thereof pursuant to Section 1 or otherwise), payable in cash
     with interest accrued at the same rate paid by the Vodafone AirTouch
     deferred compensation plan; provided, however, that upon the involuntary
     termination of Executive's employment for any reason prior to the end of
     the Term (without regard to any extensions thereof pursuant to Section 1 or
     otherwise), each such amount not theretofore paid shall become immediately
     due and payable, with interest; and

          (iv)   A retention payment in the amount of $465,450, which shall
     become due and payable on May 1, 2000 previously granted to Executive
     under and pursuant to the terms of the PrimeCo Personal Communications
     Special Retention Bonus for Liquidation (June 1, 1999, as amended on
     October 15, 1999); and

          (v)    A retention bonus of $500,000, pursuant to the terms of the
     Executive Retention Bonus Plan referred to in and attached to that certain
     letter from Dennis F. Strigl to Executive dated February 4, 1998; and

          (vi)   Continued vesting to grants under the PrimeCo long term
     incentive plan, in the same manner as for other PrimeCo executives who are
     seconded to or employed by the Company.

          (vii)  Reimbursement for all reasonable expenses incurred in the
     performance of Executive's duties hereunder, including but not limited to
     travel, accommodation, entertainment and other similar expenses, in
     accordance with the Company's policies and directives from Executive's
     superiors;

          (viii) Participation during the Secondment Period, if otherwise
     eligible, in all individual or group life insurance, health insurance,
     accident insurance, disability insurance, vacation and other welfare
     benefit plans maintained by Vodafone and heretofore made available to
     Executive, and participation during the Term, if otherwise eligible, in
     all individual or group life insurance, health insurance, accident
     insurance, disability insurance, vacation and other welfare benefit plans
     maintained by the Company and provided generally to similarly situated
     executives;

          (ix)   An annual automobile allowance of $9,000.00, paid periodically;
     and

          (x)    Such other additional or special compensation, benefits and
     perquisites as the Company may provide from time to time to similarly
     situated executives.

     (b) During the first year of the Term, the Company shall provide Executive
with a long-term incentive grant equal in value to 500% of Executive's base
salary in 2000. In each of the second and third years after the effective date
of this Agreement, the Company shall provide Executive with additional
long-term incentive grants comparable in value to the value of such grants
provided to similarly situated executives

                                      -3-
<PAGE>

based on market conditions and in accordance with the Company's long-term
incentive plan, subject to Board approval. Such grants will be issued not as
compensation for services rendered, but rather as an inducement to Executive to
render services to the Company during the Secondment Period and to enter into
this Agreement thereafter.

4. Termination of Executive's Employment by the Company.

     (a) Death or Disability. Executive's secondment to the Company during the
Secondment Period, or his employment by the Company during the Term, will
terminate automatically upon Executive's death or upon Executive's continuing
disability on the date on which his short-term disability benefits expire if at
that time he remains unable, even with reasonable accommodation, to perform the
essential duties and responsibilities he was performing prior to the
commencement of eligibility for such benefits. Termination of employment due to
disability shall not constitute a bar to Executive's eligibility for long-term
disability benefits if Executive would have qualified for such benefits in the
absence of the termination of his employment.

     (b) For Cause. The Company may terminate Executive's secondment during the
Secondment Period, or Executive's employment during the Term for Cause, in
writing and without prior notice, for any of the following reasons:

          (i)   breach by Executive of any of the covenants he makes or material
     obligations he assumes under this Agreement; or

          (ii)  insubordination or failure to perform job responsibilities with
     full-time and good-faith efforts; or

          (iii) conviction of, or plea of nolo contendere to, criminal charges
     (other than a traffic citation or minor misdemeanor), or conduct which
     would, if prosecuted, warrant conviction on such charges under a "beyond a
     reasonable doubt" standard of proof; or

          (iv)  material violation of the Company's Employee Code of Conduct or
     other policies of the Company, including, by way of example, a violation
     of the employer's voucher or expense reimbursement rules; or

          (v)   conduct which, if it were known by the public, would harm the
     reputation of the Company.

     (c) Without Cause. The Company may terminate the Executive's secondment
during the Secondment Period, or Executive's employment during the Term, at any
time for any reason other than those set forth in Sections 4(a), 4(b), or 4(d)
in writing and without prior notice. In such case, Executive shall be eligible
to receive liquidated damages as set forth in Section 6(b). In any proceeding
conducted to determine whether Executive's secondment or employment was
terminated for Cause, if the finder of fact determines that Executive's
secondment or employment was terminated other than for Cause, then his
secondment or employment shall be deemed to have been terminated Without Reason
and the remedy shall be limited to liquidated damages as provided in Section
6(b).

                                      -4-
<PAGE>

     (d) Nonrenewal. The Company may terminate Executive's employment by
providing written notice of its intent not to renew this Agreement for an
additional term of one or more years, in which event Executive's employment
shall terminate as of the last day of the Term (including any month-to-month
extensions pursuant to Section 1), and Executive shall be entitled to
liquidated damages as provided in Section 6(c) hereof.

5. Termination by Executive.

     (a) Without Reason. Executive may terminate his services at any time
during the Secondment Period, or his employment at any time during the Term,
Without Reason. Without limiting the meaning of the term "Without Reason," it
shall constitute termination Without Reason if, at the expiration of the Term
(including any month-to-month extensions pursuant to Section 1), Executive
refuses to sign a renewal or extension of this Agreement or a successor
agreement for an additional term of one or more years, provided that such
renewal, extension or successor agreement does not reduce Executive's
then-current base salary or short- or long-term incentive targets.

     (b) For Good Reason. Executive may terminate his services at any time
during the Secondment Period, or his employment at any time during the Term,
for Good Reason, but only on 60 days' written notice of intent to resign for
Good Reason. In such case, Executive shall be eligible to receive liquidated
damages on the terms set forth in Section 6(b). Executive shall be deemed to
have Good Reason to terminate his services or his employment if no event has
occurred which would constitute Cause for the Company to terminate his
secondment or his employment, and if any of the following events has occurred
within six months prior to the effective date of the termination:

          (i)   assignment, without written consent of the Executive, to a
     position which involves more than a change in reporting structure, but
     also results in materially less authority and responsibility than
     immediately before such assignment; or

          (ii)  reduction in Executive's base salary; or

          (iii) reduction in Executive's short- or long-term incentive targets
     below the targets of similarly situated executives; or

          (iv)  "Change in Control," which shall mean (1) a sale or transfer of
     more than 50% of the Company's assets to an entity other than Bell
     Atlantic Corporation or any affiliate or subsidiary or successor thereof
     (collectively "BA Corp."), (2) a sale of partnership interests such that
     BA Corp. owns less than 50% of the partnership interests in the Company or
     (3) a sale of equity interests in the Company following which BA Corp.
     owns less than 50% of the common stock of the Company; provided that as a
     result of (1), (2) or (3) BA Corp. ceases to have actual management
     control of the Company; and provided further, that neither (1), nor (2)
     nor (3) shall constitute a "Change in Control" if the transaction at issue
     is an initial public offering. "Actual management control" shall mean the
     possession, direct or indirect, of the power to direct or cause the
     direction of the management of the Company as it may be constituted
     following the event described in (1), (2) or (3) above (including, without
     limitation, the power to appoint a majority of the Board of
     Representatives or other

                                      -5-
<PAGE>

     comparable governing body of such entity), whether through the beneficial
     ownership of voting securities or other ownership interest, by contract or
     otherwise, whether the loss of actual management control is voluntary or
     involuntary or the result of any merger, tender offer, stock purchase,
     other stock acquisition, merger, consolidation, recapitalization, reverse
     split, or sale or transfer of assets.

     (c) Upon Expiration of This Agreement. The Executive may terminate his
employment if within 90 days after the expiration of the Term, the Company (i)
does not offer a renewal, extension or successor agreement for an additional
term of one or more years, or (ii) offers a renewal, extension or successor
agreement which reduces Executive's then-current base salary or short- or
long-term incentive targets. In such case, Executive shall be eligible to
receive liquidated damages on the terms set forth in Section 6(c).

6. Post-Termination Liquidated Damages Payable by the Company.

     (a) If the Company terminates Executive's secondment or employment for
Cause or by reason of disability or death, or if Executive terminates his
secondment or his employment Without Reason, then the Company shall have no
further obligations to Executive beyond the date of termination, other than to
provide compensation owed for services previously rendered pursuant to Section
3(a); provided, however, that if the termination of Executive's employment is
by reason of disability or death, then Executive (in the case of disability) or
Executive's executor or administrator (in the case of death) may exercise
Executive's vested long term incentive grants pursuant to the terms of the
long-term incentive plan, in accordance with the following formula: number of
options per grant multiplied by the number of months Executive was seconded
and/or employed between the date of the grant and the date of Executive's last
day of employment, divided by 36.

     (b) If the Company terminates Executive's secondment or employment Without
Cause, or if Executive terminates his secondment or employment with Good Reason
on proper notice, the Company shall provide to Executive, as liquidated
damages, (i) an amount equal to 150% of Executive's annualized base salary and
short-term incentive target at the time of termination, payable in 18 equal
monthly installments, subject to required payroll deductions, and (ii)
continued participation in the applicable medical and dental insurance plans
for 18 months, at the Company's expense but subject to any employee
contribution requirements applicable as of Executive's last day of active
employment (as such requirements may thereafter be revised generally from time
to time). Payment of such liquidated damages shall not be deemed compensation
for prior services rendered, but rather shall be deemed a settlement of the
parties' obligations to each other, as provided below. In addition, Executive's
unvested long-term incentive grants shall vest in accordance with the following
formula: number of options per grant multiplied by the number of months
Executive was seconded and/or employed between the date of the grant and the
date of Executive's last day of employment, divided by 36. The time when
options so vested may be exercised shall be determined by reference to the
terms of the long-term incentive plan. Company also shall pay Executive cash in
lieu of accrued but unused

                                      -6-
<PAGE>

vacation days, at a daily rate equal to 1/260th of Executive's annualized base
salary rate.

     (c) If Executive's employment is terminated by the Company pursuant to
Subsection 4(d) or by Executive pursuant to Subsection 5(c), the Company shall
provide to Executive, as liquidated damages, an amount equal to (i) 100% of
Executive's annualized base salary and short-term incentive target at the time
of termination, payable in 12 equal monthly installments, subject to required
payroll deductions, and (ii) continued participation in the Company's medical
and dental insurance plans for 12 months, at the Company's expense but subject
to any employee contribution requirements applicable as of Executive's last day
of active employment (as such requirements may thereafter be revised generally
from time to time). Payment of such liquidated damages shall not be deemed
compensation for prior services rendered, but rather shall be deemed a
settlement of the parties' obligations to each other, as provided below. In
addition, Executive's unvested long-term incentive grants shall vest in
accordance with the terms of the long-term incentive plan. Company also shall
pay Executive cash in lieu of accrued but unused vacation days, at a daily rate
equal to 1/260th of Executive's annualized base salary rate.

     (d) (i)  Liquidated damages under Sections 6(b) or 6(c) shall not be
payable if the Executive is in breach of this Agreement at the time of the
termination of his employment.

         (ii) Upon Executive's breach of any of his covenants or continuing
obligations under Sections 7 through 10 of this Agreement, Executive's right,
if any, to payment of liquidated damages after the date of such breach shall be
forfeited.

     (e) Executive's right to liquidated damages hereunder shall be conditioned
on his agreeing to and executing, within the time specified by the Company, a
release in such form as reasonably may be required by the Company. The Company
shall have no obligation to pay liquidated damages unless and until such
release is signed. The validity and enforceability of such release shall not be
impaired if, after signing it, Executive's right to continued payment of
liquidated damages is forfeited pursuant to Section 6(d)(ii).

     (f) Liquidated damages hereunder shall be in lieu of any right Executive
otherwise may have to receive benefits under any severance or separation pay
plan, program or practice which may otherwise be applicable to him, and he
hereby waives any right to receive any such severance benefits.

7. Prohibition Against Competitive Activities.

     (a) Covenant Not to Engage in Competitive Activities. Executive
acknowledges that by virtue of his secondment to and employment by the Company,
he will obtain knowledge, training, experience and access to the Company's
proprietary and confidential information to such an extent that if he were to
work for or otherwise provide services to a competitor of the Company, that
competitor inevitably would gain an unfair competitive advantage by means of
its access to Executive's knowledge, training, experience and familiarity with
the Company. Therefore, in consideration for (i)

                                      -7-
<PAGE>

the offer of this Agreement for a specific term, (ii) the right to
post-termination liquidated damages on the terms provided in Section 6, and
(iii) the opportunity to participate in the Company's long-term incentive plan,
Executive covenants to the fullest extent permitted by law that (i) he will not
engage in Competitive Activities (as that term is defined in Section 7(b))
while he remains seconded to or employed by the Company, and (ii) he will not
engage in Competitive Activities until one year after the date of any
termination of his secondment prior to the last day of the Secondment Period
(or, if he becomes employed by the Company, until one year after the date of
termination of his employment for any reason) and, in the case of activities
described in Section 7(b)(iii), until two years after the date of any
termination of his secondment prior to the last date of the Secondment Period
(or, if he becomes employed by the Company, until two years after the date of
termination of his employment for any reason).

     (b) Competitive Activities Defined. For purposes of this Agreement,
"Competitive Activities" means business activities in the wireless
communications industry within or adjacent to the Company's geographic
footprint relating to products or services of the same or similar type as those
of the Company (including products or services the Company planned to offer in
accordance with any Business Plan approved by the Board of Representatives
prior to the termination of Executive's employment); provided, however, that it
shall not be considered Competitive Activity for Executive to accept employment
by any entity which is contributing assets to the Company or any affiliate of
such entity. Restricted activities include, but are not limited to:

          (i)   personally working for, owning, managing, operating, controlling
     or participating in the ownership, management, operation or control of, or
     providing consulting or advisory services to, any business engaged in
     Competitive Activities; provided, however, that Executive's purchase or
     holding of securities of a publicly-traded company, for investment
     purposes, shall not be prohibited so long as Executive's equity interest
     in any such company is less than one percent;

          (ii)  maintaining any appreciable financial interest in any business
     engaged in Competitive Activities;

          (iii) soliciting, inducing or influencing employees of the Company or
     former employees who have worked for the Company within the preceding six
     months to engage in Competitive Activities;

          (iv)  interfering with the relationship of the Employer with any of
     its customers, agents, representatives, suppliers or vendors under
     contract; and

          (v)   engaging in or planning to engage in Competitive Activities
     while still seconded to or employed by the Company.

     (c) Forfeiture of Benefits. Executive acknowledges that any violation of
any of the covenants of this Section 7 may result in the forfeiture of rights
to benefits or compensation under one or more benefit or compensation plans of
the Company which contain such forfeiture provisions, and will result in his
obligation to pay liquidated damages as provided in Section 11.

                                      -8-
<PAGE>

8. Prohibition Against Disclosure of Proprietary Information; Intellectual
   Property Rights.

     (a) Duty to Preserve Confidentiality. Executive acknowledges that he will
be privy to strategic and sensitive business information, and that he will have
access to confidential and proprietary information of the Company. Therefore,
during the course of Executive's secondment and employment and after such
secondment or employment ends for any reason, (i) Executive will treat with
utmost confidentiality all such strategic and sensitive business information
and all such confidential and proprietary information (including, without
limitation, "Proprietary Information" as that term is defined in Section 8(b)
below), and (ii) except as required to conduct the business of the Company or
as authorized in writing by the Company, Executive will not publish, disclose
or use such information or authorize anyone else to publish, disclose or use
it. Executive acknowledges that, in addition to his duties under this
Agreement, he has common law and statutory duties as an employee to preserve
the confidentiality of the Company's trade secrets, and will continue to have
such duties after his secondment or employment terminates for any reason.

     (b) Definition of Proprietary Information. "Proprietary information"
includes, but is not limited to, information in the possession or control of
the Company that has not been fully disclosed in a writing which has been
generally circulated to the public at large, and which gives the Company an
opportunity to obtain or maintain advantages over its current and potential
competitions. "Proprietary information" includes, without limitation,

          (i)    marketing plans, strategic or tactical business plans, product
     plans and designs, undisclosed financial data, agreements with third
     parties, technical information, computer software or other apparatus
     programs, databases, budgets and projections, whether in draft or final
     form:

          (ii)   ideas, processes, methods, techniques, systems, patented or
     copyrighted information, models, devices, programs, computer software or
     related information and documentation;

          (iii)  documents relating to regulatory matters and correspondence
     with governmental entities, including classified National Security
     information;

          (iv)   pricing and cost data;

          (v)    reports and analyses of business prospects;

          (vi)   business transactions which are contemplated or planned;

          (vii)  research data;

          (viii) employee information and data, including knowledge of skills,
     abilities, performance and compensation;

                                      -9-
<PAGE>

          (ix)  information relating to specific users and purchasers of the
     Company's products or services or to such users and purchasers generally,
     such as customer names, customer contacts, terms of customer contracts,
     customer proposals, types, locations, and quantities of service, calling
     patterns and billing information; and

          (x)   other confidential matters pertaining to or known by the
     Company, including information that is proprietary to others which the
     Company is bound to protect, such as vendor or customer proprietary
     information or information provided in conjunction with non-disclosure or
     confidentiality agreements with third parties.

     (c) Obligation to Return Company Property. Upon the termination of
Executive's secondment or employment for any reason, and prior to his last day
of active secondment or employment, he shall return to the Company all property
of the Company in his possession, custody and control, including without
limitation, the originals and all copies of all records, papers, programs,
computer software, documents and other materials which contain Proprietary
Information, as defined in Section 8(b), and all computer and other equipment
of the Company.

     (d) Intellectual Property.

          (i)   Executive will promptly disclose to the Company, in confidence,
     all inventions, discoveries, designs, improvements, technical information,
     ideas, databases, computer software or other apparatus programs, related
     documentation, and other works of original authorship, whether or not
     patentable, copyrightable or susceptible to other forms of protection,
     which he makes, creates, develops, writes or conceives during the course
     of his secondment or employment by the Company (hereinafter,
     "Innovations").

          (ii)  Executive hereby assigns and grants to the Company all rights,
     title and interest in and to all Innovations. On request by the Company,
     Executive will execute a specific assignment to the Company of all rights,
     title and interest to any particular Innovation or group of Innovations,
     and will execute all applications for patent, copyright or other forms of
     protection for such Innovations in the United States and in other
     countries.

          (iii) An Innovation will be deemed not to have been made in the
     course of Executive's secondment to or employment by the Company if it (1)
     was developed on his own time and (2) no equipment, supplies, facilities
     or trade secret information of the Company were used in developing it.
     However, even if an Innovation was developed entirely on Executive's own
     time, and even if no equipment, supplies, facilities or trade secret
     information of the Company were used in developing it, an Innovation shall
     be deemed to have been made in the course of Executive's secondment or
     employment if at the time of its conception or reduction to practice it
     related to the Company's business or to the Company's actual or
     demonstrably anticipated research or development, or if it resulted from
     any work that Executive performed for the Company.

          (iv)  During the course of Executive's secondment or employment and
     after such secondment or employment ends for any reason, (1) Executive
     will treat with

                                     -10-
<PAGE>

     utmost confidentiality all Innovations and all private, trade secret and
     proprietary information concerning them, and (2) except as required by the
     conduct of the business of the Company or as authorized in writing by the
     Company, Executive will not publish, disclose or use such information or
     authorize anyone else to publish, disclose or use it. When Executive's
     secondment or employment terminates, he will relinquish all documents,
     equipment and records containing such information to the Company,
     regardless of its form.

     (e) Forfeiture of Benefits. Executive acknowledges that violation of any
of the prohibitions or covenants of this Section 8 may result in the forfeiture
of rights to benefits or compensation under one or more benefit or compensation
plans of the Company which contain such forfeiture provisions, and will result
in his obligation to pay liquidated damages as provided in Section 11.

9.  Confidentiality. Executive agrees not to disclose or discuss, other than
with his legal counsel, personal tax or financial advisors, or spouse, either
the existence or any details of this Agreement. Executive will use his best
efforts to ensure that any such legal counsel, personal tax or financial
advisor, or spouse will not disclose or discuss the existence or any details of
this Agreement with any other person. This Agreement shall not prohibit the
Executive from disclosing to any person that he has agreed not to compete with
the Company and that he has legal duties not to disclose the Company's
proprietary information. Executive is hereby authorized to reveal to a
prospective employer or prospective client or business associate the precise
terms of Sections 7, 8(a) and (b), 11(b) and 12 hereof, but in so doing,
Executive shall not reveal any other parts of this Agreement.

10. Duty to Disclose Acceptance of Offers of Employment by Other Employers.
Executive acknowledges that the Company has an ongoing interest in knowing
whether any of its employees, former employees or employees who have been
seconded to it who have, or had, access to proprietary or confidential
information intend to provide services as an employee, consultant or in any
other capacity to an entity which the Company considers to be a competitor or
potential competitor. Accordingly, during the period of Executive's secondment
to and employment by the Company, Executive shall give written notice to the
Company of his intention to accept employment with any employer other than the
Company, not later than the date on which he gives his written or oral
acceptance of an offer of employment, or offer of compensation in exchange for
advice, information or consulting services. That notice shall state the name of
the offering entity, the role or position accepted and a brief summary of the
responsibilities, the geographic location and scope of that role or position.

11. The Company's Remedies for Breach of Agreement

     (a) Liquidated Damages Payable by Executive upon Resignation. Executive
recognizes that his services to the Company are of the highest value to the
Company, that his services cannot be easily replaced in the event he terminates
his secondment at any time during the Secondment Period or his employment prior
to the end of the Term, and that the loss of Executive's services would cause
damages to the Company's operations which are substantial but not readily
calculable. Therefore,

                                     -11-
<PAGE>

Executive warrants that if he terminates his secondment at any time during the
Secondment Period or his employment before expiration of the Term other than
for Good Reason, he shall pay the Company as liquidated damages an amount equal
to 100% of the Executive's pre-tax gain from the exercise of any long-term
incentive grants issued in 2000 to Executive by the Company. Such sum shall be
payable in a single lump amount which shall be immediately due and payable on
demand following the termination of Executive's secondment prior to the end of
the Secondment Period or his employment during the Term. In addition,
Executive's right to exercise any long-term incentive grants issued in 2000 to
Executive by the Company which have not yet been exercised shall be
extinguished as of the last day of his active secondment or employment.

     (b) Liquidated Damages for Breach of Covenants Under Sections 7 or 8.
Executive acknowledges that his breach any of his covenants under Sections 7 or
8 of this Agreement would cause substantial damages to the Company that are not
readily calculable. Accordingly, in the event of such a breach, Executive
agrees to pay to the Company as liquidated damages an amount equal to the sum
of his annualized base salary and short-term incentive target in effect at the
time of the breach. In addition, (i) as provided in Section 6(d), Executive's
right to any payments under Sections 6(b) or 6(c) which have not yet been made
shall be extinguished and no further such payments shall be due, (ii) he shall
return to the Company all payments under Sections 6(b) or 6(c) which
theretofore shall have been provided to him (except that Executive shall retain
$100 of such sum as consideration for the release executed pursuant to Section
6(e)), (iii) all of his grants under any long-term incentive plan which have
not yet vested or which have vested but not yet been exercised shall be
extinguished immediately, and (iv) Executive shall owe to the Company all
pre-tax gain derived from the exercise of any long-term incentive grants during
the six months preceding the breach. Executive promptly shall pay to the
Company the sum of all amounts to be paid pursuant to this Section 11(b), in a
single lump amount which shall be due immediately and payable on demand
following the breach.

     (c) Injunctive Relief. Executive acknowledges that if he breaches his
covenants under Sections 7 and 8 of this Agreement, competitors of the Company
will gain the value of the Executive's services to the detriment of the
Company, and that the Company thereby will suffer irreparable injury. In the
event of a breach of any of his covenants under Sections 7 or 8, whether or not
Executive is still seconded to or employed by the Company at the time of such
breach, to the extent permitted by law the Company shall be entitled, in
addition to causing the Executive to forfeit benefits as described in Sections
7(c) and 8(e), and in addition to liquidated damages payable under Section
11(b) and any other remedies available at law, to injunctive relief to restrain
further breach of such commitments by the Executive or by any person acting for
or with him in any capacity whatsoever.

12. Arbitration. In the event that (a) Executive believes that the Company has
breached any provision of this Agreement or otherwise has violated his rights
in connection with his secondment to or employment by the Company, the manner
in which he was treated while so seconded or employed or the termination of his
secondment or employment, or if he believes that the Company violated his
rights under

                                     -12-
<PAGE>

any common law theory of liability or any applicable federal, state or local
law, statute, regulation or ordinance (including without limitation 42 U.S.C.
Section 1981, Title VII of the Civil Rights Act of 1964, the Age Discrimination
in Employment Act and any other state or federal statute that pertains to
employee rights or discrimination in employment), or (b) the Company believes
that Executive has breached any provision of this Agreement or otherwise has
violated its rights in connection with his secondment to or employment by the
Company, the dispute may be submitted to the American Arbitration Association
in New York or any other state mutually agreeable to all parties, for
arbitration pursuant to its rules and procedures for resolution of employment
disputes. The arbitrator shall not have the power to declare or treat any
provision of this Agreement as void or unenforceable. The arbitrator shall
include in the award the prevailing party's costs and expenses (including
reasonable attorneys' fees and expert witness fees) incurred in connection with
the proceedings. The decision of the arbitrator shall be final and binding.
Executive understands and agrees that this provision constitutes a waiver of
his right to initiate a proceeding before an administrative tribunal seeking
relief for himself and to sue in any court of law or equity, and that the sole
forum available to him for resolution of disputes between himself and the
Company is arbitration as provided herein. The parties intend that the
arbitration procedure to which they hereby agree shall be the exclusive means
for resolving all disputes between them, and their agreement in this regard
shall be interpreted as broadly and inclusively as reason permits to realize
that intent; provided, however, that nothing herein shall be considered a
waiver of either party's right to seek a temporary restraining order or
injunction from a court for purposes of preserving the status quo or preventing
irreparable harm pending decision by an arbitrator.

13. Miscellaneous Provisions.

     (a) Assignment by the Company. The Company expressly reserves the
right to assign this Agreement. If and when the Executive transfers from the
Company to another employer pursuant to such assignment, this Agreement shall
be deemed to be assigned to the transferee employer in lieu of the Company.
This Agreement may not be assigned by the Executive.

     (b) Waiver. The waiver by any Company of a breach by the Executive of any
provision of this Agreement shall not be construed as a waiver of any
subsequent breach by him.

     (c) Executive's Warranty. Executive warrants and represents that his
acceptance of secondment to or employment by the Company on the terms offered
will not breach any contractual or other obligation he has to any third party,
and that he will neither bring to the Company confidential or proprietary
information or documents of any third party (other than a third party
contributing assets to the Company), including any former employer, nor use or
disclose any confidential or proprietary information of any third party without
such third party's written authorization.

     (d) Severability. If any clause, phrase or provision of this Agreement
(including, without limitation, Section 12), or the application thereof to any
person or circumstance, shall be deemed invalid or unenforceable by any court
of competent

                                     -13-
<PAGE>

jurisdiction, such event shall not affect or render invalid or unenforceable
the remainder of this Agreement and shall not affect the application of any
clause, phrase or provision hereof to other persons or circumstances. Further,
if an arbitrator or court of competent jurisdiction determines that the
geographic scope, duration or any other features of the covenants and
commitments set forth in Sections 7 and 8 are not enforceable as drafted, this
Agreement shall hereby be deemed to be amended automatically to provide the
maximum enforcement thereof permitted by law.

     (e) Gender. All pronouns used in this Agreement are in the masculine
gender solely for purposes of grammatical convenience, and it is the parties'
intent that all pronouns used herein are intended to comprehend both genders as
warranted by context or by the gender of the Executive.

     (f) Governing Law. The parties acknowledge that the services to be
performed by Executive pursuant to this Agreement will be rendered in a number
of different states, and that the Company has a special interest in having its
agreements with employees in different places construed according to the same
law because it conducts operations throughout the entire United States.
Accordingly, the parties have chosen the State where the Company's headquarters
are located as a reasonable jurisdiction for choice of law, and therefore agree
that this Agreement shall be construed and enforced in accordance with the laws
of the State of New York, without regard to choice of law principles.

     (g) Notices. Whenever this Agreement requires or permits notice to be
given to the Company, the notice should be given in writing to the Chief
Executive Officer of the Company, or to such other person as the Company may
subsequently identify in writing to Executive.

     (h) Entire Agreement.

          (i) Except for the terms and conditions of the compensation and
     benefit plans applicable to Executive (as such plans may be amended by the
     Company from time to time) and except for the Secondment Agreement, this
     Agreement sets forth the entire understanding of the parties and
     supersedes all prior agreements, arrangements, and communications, whether
     written or oral, pertaining to the subject matter hereof, including
     without limitation any employment agreement previously entered into
     between Executive and the Company. This Agreement shall not negate (A) any
     retention agreement relating to the proposed merger between BAC and GTE;
     (B) any benefits previously earned or rights granted under any long-term
     incentive plan; (C) any other benefits maintained by any other entity that
     are not duplicative in nature of any benefits provided under this
     Agreement; or (D) any obligations that the Executive may have under any
     non-compete, proprietary information or intellectual property agreement
     with any entity that is contributing assets to the Company or any
     affiliate of such entity. Any such rights, benefits or obligations shall
     be determined in accordance with the terms of such agreements or plans.
     This Agreement shall not be modified or amended except by written
     agreement of the Company, the Executive, and the Company which then
     employs him.

                                     -14-
<PAGE>

     IN WITNESS WHEREOF, the parties hereto, intending to be legally bound,
hereby execute this Agreement.

                                             Cellco Partnership

                                             By: /s/ Denny Strigl
                                                 -----------------------------
___________________________                         Chief Executive Officer
          Date

        4/14/00                                        Lowell C. Mc Adam
___________________________                  _________________________________
          Date                                             Executive

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