Exhibit 10.2
                                    GUARANTEE


            GUARANTEE  dated as of this 10th day of May,  2002, by UNITED STATES
CELLULAR CORPORATION, a Delaware corporation (with its successors, "Guarantor"),
for the benefit of CREDIT SUISSE FIRST BOSTON INTERNATIONAL (with its successors
and assigns,  "Beneficiary")  and with Credit  Suisse  First Boston  Corporation
acting as agent ("Agent").

            WHEREAS,  USCCI  Corporation,   a  Delaware  corporation  (with  its
successors,  "Obligor"),  is a 100%-owned  subsidiary of United States  Cellular
Investment Company, which in turn is a 100%-owned subsidiary of Guarantor; and

            WHEREAS, Obligor has entered into the SAILS Mandatorily Exchangeable
Securities  Contract  dated as of the date  hereof,  among  Obligor,  Agent  and
Beneficiary   (the  "Securities   Contract")   pursuant  to  which  Obligor  and
Beneficiary  agree  to  sell  and  purchase  the  American   Depositary  Shares,
(evidenced by American Depositary Receipts) each representing 10 ordinary shares
(the "Ordinary Shares"), nominal value $0.10 per share, of Vodafone Group Public
Limited Company,  an English public limited company (the "Issuer"),  or security
entitlements  in respect  thereof  (the "ADSs") at the time and on the terms set
forth therein; and

            WHEREAS, pursuant to the SAILS Pledge Agreement dated as of the date
hereof among Obligor,  Beneficiary and Agent (the "Pledge  Agreement"),  Obligor
has  granted to  Beneficiary,  as of the date  hereof,  a security  interest  in
certain ADSs to secure the obligations of Obligor under the Securities Contract;

            NOW, THEREFORE,  in consideration of the premises and other good and
valuable  consideration,  the  receipt  and  sufficiency  of  which  are  hereby
acknowledged, Guarantor agrees as follows:

Article 1
GUARANTEE

            Section   1.01.   Guarantee.   (a)  Guarantor   hereby   absolutely,
irrevocably and unconditionally  guarantees the punctual payment when due of the
obligations of Obligor (the "Obligations") under the Securities Contract and the
Pledge Agreement, each as may be further modified,  amended or supplemented from
time to time  (collectively,  the "Agreements").  Guarantor's  obligations under
this  Guarantee  shall be subject to  Obligor's  defenses and rights to set-off,
counterclaim or withhold payment as provided in the Agreements. Guarantor agrees
to pay on  demand  any and all  fees,  funding  and  other  costs  and  expenses
(including  reasonable  attorney's fees and expenses) incurred by Beneficiary in
connection  with  enforcing any rights or  collecting  any amounts or deliveries
under the  Agreements.  Any amounts or  deliveries  that would be owed or due by
Obligor  to  Beneficiary  under  the  Agreements  but are  unenforceable  or not
allowable  against  Obligor  because  Obligor is the  subject  of a  bankruptcy,
liquidation,  reorganization or similar case or proceeding, shall nonetheless be
deemed owed or due for the purposes of this Article 1. Beneficiary  shall not be
obligated to file any claim  relating to the  Obligations  in the event  Obligor
becomes subject to a bankruptcy, liquidation,  reorganization or similar case or
proceeding,  and  the  failure  by  Beneficiary  to so  file  shall  not  affect
Guarantor's obligations hereunder.







            (b) This  Article 1 is a  guarantee  of payment  when due and not of
collection.  Guarantor  agrees  that  Beneficiary  may resort to  Guarantor  for
payment  of any of the  Obligations,  whether  or  not  Beneficiary  shall  have
realized against or applied,  or attempted (except as provided below) to realize
against or apply, any property  provided by an entity as collateral  security or
other credit  support for the  Obligations  (such  property  and credit  support
collectively,  "Security") or proceeded or attempted to proceed  against Obligor
or any other entity  principally  or  secondarily  obligated with respect to the
Obligations.

            (c) Guarantor's  obligations  under this Article 1 shall continue to
be effective or be reinstated, as the case may be, if at any time any payment of
any of the Obligations is rescinded or must otherwise be returned by Beneficiary
upon or as a result of the insolvency, bankruptcy, liquidation or reorganization
of Obligor or otherwise, all as though such payment has not been made.

            (d) Notwithstanding  the foregoing,  Beneficiary agrees that it will
not make a demand or claim  under  this  Guarantee  in  respect  of any  Secured
Portion  of the  Obligations  unless  Beneficiary  has first  used  commercially
reasonable efforts, for at least five Business Days, to realize against or apply
property  held as  Collateral  (as  defined in the Pledge  Agreement)  under the
Pledge Agreement in satisfaction of the Obligations. "Secured Portion" means, at
any time, a portion of the  Obligations  consisting of the obligation to deliver
cash or  property  with a value,  as  determined  by the  Calculation  Agent (as
defined in the Securities  Contract),  equal to the value,  as determined by the
Calculation Agent in a consistent  manner, of the Collateral then pledged to the
Beneficiary under the Pledge Agreement.

            Section 1.02.  Guarantee  Absolute.  Guarantor  guarantees  that the
Obligations  will be paid  strictly in  accordance  with the  provisions  of the
Agreements (and, to the extent  applicable,  this Article 1),  regardless of any
law,  regulation  or  order  now or  hereafter  in  effect  in any  jurisdiction
affecting  any of such  provisions  or the rights of  Beneficiary  with  respect
thereto.  The liability of Guarantor  under this Article 1 shall be irrevocable,
absolute and  unconditional  irrespective of, and Guarantor  hereby  irrevocably
waives,  any defenses it may now or hereafter have  (including any defense based
on the failure to provide  notice to or obtain the consent of  Guarantor) in any
way relating to, any or all of the following:

            (a) any lack of validity or enforceability of the Agreements;

            (b) the  entry  into   additional   transactions,   any  indulgence,
concession,  waiver or consent  given to  Obligor,  or any other  changes in the
amount of,  time,  manner or place of payment of, or in any other term of any or
all of the Obligations;

            (c) any taking, exchange,  release,  non-perfection,  realization or
application of or on any Security;

            (d) any change,  restructuring or termination in or of the structure
or existence of Obligor; or

            (e) any other  circumstances  (including,  without  limitation,  any
statute of limitations) that might otherwise  constitute a defense available to,
or a discharge of, Guarantor or Obligor.

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            Section 1.03.  Waivers and  Acknowledgments.  (a)  Guarantor  hereby
waives  promptness,  diligence,  demand for  performance,  notice of acceptance,
presentment, protest, non-performance, default, acceleration, early termination,
protest or dishonor, any other notice with respect to any of the Obligations and
this Article 1, and, except as provided in Section 1.01(d), any requirement that
Beneficiary protect, secure, perfect or insure any Security or exhaust any right
or take any action against Guarantor or any other entity or any Security.

            (b) Guarantor hereby waives any right to revoke this guarantee,  and
acknowledges  that its obligations under this Article 1 are continuing in nature
and apply to all Obligations, whether existing now or in the future.

            (c) Guarantor hereby waives (i) any defense arising by reason of any
claim or defense based upon an election of remedies by  Beneficiary  that in any
manner impairs,  reduces,  releases or otherwise  adversely affects  Guarantor's
subrogation, reimbursement,  exoneration, contribution or indemnification rights
or other  rights to proceed  against  Obligor,  any other  guarantor,  any other
entity or any Security, and (ii) except as provided in Section 1.01, any defense
based  on any  right  of  set-off  or  counterclaim  against  or in  respect  of
Guarantor's obligations under this Article 1.

            Section 1.04.  Subrogation.  Guarantor  will not exercise any rights
that it may now have or hereafter acquire against Obligor or any other guarantor
that  arise  from  the  existence,   payment,   performance  or  enforcement  of
Guarantor's obligations under this Article 1, including, without limitation, any
right   of   subrogation,    reimbursement,    exoneration,    contribution   or
indemnification  and  any  right  to  participate  in any  claim  or  remedy  of
Beneficiary against Obligor, any other guarantor or any security, whether or not
such  claim,  remedy or right  arises in equity or under  contract,  statute  or
common law,  including,  without  limitation,  the right to take or receive from
Obligor  or any  other  guarantor,  directly  or  indirectly,  in cash or  other
property,  by set-off or in any other manner,  payment or security on account of
such claim,  remedy or right, unless and until all of the Obligations shall have
been finally and  irrevocably  satisfied in full. If any amount shall be paid to
Guarantor in violation of the preceding  sentence at any time prior to the final
and irrevocable  payment or performance in full of all of the Obligations,  such
amount shall be held in trust for the benefit of Beneficiary and shall forthwith
be paid to  Beneficiary  to be (at the  election of  Beneficiary)  credited  and
applied to the Obligations, whether matured or unmatured, in accordance with the
terms  of the  Agreements,  and/or  to be held as  collateral  security  for any
Obligations thereafter arising.

Article 2
REPRESENTATIONS AND WARRANTIES

            Section 2.01.  Representations and Warranties.  Guarantor represents
and warrants to Beneficiary that:

            (a) The  representations  and  warranties  made by Obligor under the
Agreements are true and correct.

            (b) Guarantor is a corporation  duly  organized and existing in good
standing  under  the  laws  of its  jurisdiction  of  incorporation  and has the
requisite  corporate power to own its properties and to carry on its business as
now being conducted.



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            (c) The execution and delivery of this Guarantee and the performance
by Guarantor of its  obligations  hereunder do not violate or conflict  with any
provision of the certificate of  incorporation  or bylaws of Guarantor,  any law
applicable to  Guarantor,  any order or judgment of any court or other agency of
government  applicable  to  Guarantor  or  any  of  Guarantor's  assets  or  any
contractual  restriction binding on or affecting Guarantor or any of Guarantor's
assets.

            (d) All government and other consents that are required to have been
obtained by Guarantor  with respect to this Guarantee have been obtained and are
in full force and  effect  and all  conditions  of any such  consents  have been
complied  with.  Guarantor  has  complied  and will comply  with all  applicable
disclosure or reporting requirements in respect of the transactions contemplated
by the Agreements,  including  without  limitation any  requirements  imposed by
Section 13 or Section 16 of the Securities  Exchange Act of 1934, as amended, or
the rules and regulations thereunder.

            (e) Guarantor  has the  requisite  corporate  power and authority to
enter into and perform this Guarantee.  The execution,  delivery and performance
by  Guarantor  of this  Guarantee  have been duly  authorized  by all  necessary
corporate  action.  This  Guarantee  has been duly  executed  and  delivered  by
Guarantor.  Guarantor's  obligations under this Guarantee constitute Guarantor's
legal,  valid and binding  obligations  enforceable in accordance with its terms
(subject to applicable  bankruptcy,  reorganization,  insolvency,  moratorium or
similar  laws  affecting   creditors'  rights  generally  and  subject,   as  to
enforceability,  to equitable  principles of general application  (regardless of
whether enforcement is sought in a proceeding in equity or at law)).

            (f) No Acceleration Event (as such term is defined in the Securities
Contract) or event that, with the giving of notice or the lapse of time or both,
would  constitute an  Acceleration  Event has occurred and is continuing  and no
such event would occur as a result of  Guarantor's  entering  into or performing
Guarantor's obligations under this Guarantee.

            (g) There is not pending or, to  Guarantor's  knowledge,  threatened
against Guarantor or any of its affiliates any action, suit or proceeding at law
or in  equity  or before  any  court,  tribunal,  governmental  body,  agency or
official  or  any  arbitrator  (including  without  limitation  any  bankruptcy,
insolvency  or  similar  proceeding)  that is  likely to  affect  the  legality,
validity or  enforceability  against  Guarantor of this Guarantee or Guarantor's
legal right to perform its obligations under this Guarantee.

            (h) Guarantor is not,  nor has  Guarantor  been,  at any time in the
preceding three months, an "affiliate", within the meaning of Rule 144 under the
Securities Act, of the Issuer.  Guarantor is not, on the date of this Agreement,
in possession of any material non-public information regarding the Issuer.

            (i) Guarantor is not and,  after giving  effect to the  transactions
contemplated hereby, will not be an "investment company" as such term is defined
in the Investment Company Act of 1940, as amended.

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            (j) Guarantor  is acting for its own  account,  and has made its own
independent  decision  to enter  into  this  Guarantee  and as to  whether  this
Guarantee is appropriate or proper for Guarantor based upon its own judgment and
upon  advice  of  such  advisors  as  Guarantor   deems   necessary.   Guarantor
acknowledges and agrees that Guarantor is not relying,  and has not relied, upon
any communication (written or oral) of Beneficiary or any affiliate, employee or
agent  of  Beneficiary  with  respect  to the  legal,  accounting,  tax or other
implications  of this  Guarantee  and that  each of  Seller  and  Guarantor  has
conducted its own analyses of the legal, accounting,  tax and other implications
hereof and  thereof;  it being  understood  that  information  and  explanations
related to the terms and  conditions of this  Guarantee  shall not be considered
investment advice or a recommendation to enter into this Guarantee. Guarantor is
entering into this Guarantee with a full  understanding  of all of the terms and
risks  hereof  (economic  and  otherwise)  and  is  capable  of  evaluating  and
understanding  (on  Guarantor's own behalf or through  independent  professional
advice), and understands and accepts, the terms, conditions and risks. Guarantor
is also capable of assuming  (financially  and  otherwise),  and assumes,  those
risks.  Guarantor  acknowledges  that  neither  Beneficiary  nor any  affiliate,
employee or agent of  Beneficiary  is acting as a fiduciary for or an advisor to
Guarantor in respect of this Guarantee.

Article 3
COVENANTS

            Section 3.01.  Taxes.  Guarantor shall pay any and all  documentary,
stamp,  transfer or similar  taxes and charges that may be payable in respect of
the entry into this Guarantee.  Guarantor further agrees to make all payments in
respect  of this  Guarantee  free and  clear  of,  and  without  withholding  or
deduction  for or on account of, any  present or future  taxes,  duties,  fines,
penalties,  assessments or other  governmental  charges of whatsoever nature (or
interest  on  any  taxes,  duties,  fines,   penalties,   assessments  or  other
governmental charges of whatsoever nature) ("Tax") imposed,  levied,  collected,
withheld  or  assessed  by,  within  or on behalf  of the  United  States or any
political subdivision or governmental  authority thereof or therein having power
to tax or any  jurisdiction  from or  through  which  payment  pursuant  to this
Guarantee is made by Guarantor,  or any political  subdivision  or  governmental
authority  thereof or therein having power to tax,  provided that such Tax would
not be imposed in respect of a payment under this Guarantee but for a present or
former  connection  between  the  jurisdiction  of the  government  or  taxation
authority  imposing such Tax and  Beneficiary or a person related to Beneficiary
(including,  without  limitation,  a connection arising from Beneficiary or such
related person being or having been a citizen or resident of such  jurisdiction,
or being or having been organized,  present or engaged in a trade or business in
such  jurisdiction,  or having or having had a permanent  establishment or fixed
place of business in such  jurisdiction,  but  excluding  a  connection  arising
solely from  Beneficiary  or such related  person  having  executed,  delivered,
performed  its  obligation  or  received  a payment  under,  or  enforced,  this
Guarantee.  In the event such  withholding  or deduction  is imposed,  Guarantor
agrees to  indemnify  Beneficiary  for the full  amount of such  withholding  or
deduction, as well as any liability (including penalties, interest and expenses)
arising  therefrom  or with  respect  thereto,  provided  that  Beneficiary  has
provided to Guarantor a duly executed and  completed  Internal  Revenue  Service
Form  W-8BEN  (with  respect to the  benefits  of an income tax treaty) (i) upon
execution of this  Guarantee,  with such form to be updated at the  beginning of
each succeeding three calendar year period beginning after the execution of this
Guarantee,  or as otherwise required under then applicable Treasury Regulations;
(ii)  promptly upon  reasonable  demand by  Guarantor;  and (iii)  promptly upon
learning that any form previously provided has become obsolete or incorrect.


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            Section  3.02.  Actions  That  Could  Cause  Guarantor  to Become an
Affiliate.  Guarantor shall notify  Beneficiary  immediately of its intention to
(i) purchase ADSs, Ordinary Shares or any other equity security of the Issuer in
an amount that would cause Guarantor to become the beneficial owner, directly or
indirectly,  of more than three percent of the outstanding  shares of any equity
security of the Issuer, (ii) permit any of its officers or directors to accept a
position as an officer or  director  of the  Issuer,  (iii) take any action that
would cause Guarantor to possess, directly or indirectly, the power to direct or
cause the  direction of the  management  and policies of the Issuer,  whether by
ownership of voting securities,  by contract or otherwise or (iv) take any other
action that could  reasonably be expected to result in  Guarantor's  becoming an
"affiliate",  within the  meaning of Rule 144 under the  Securities  Act, of the
Issuer.  Guarantor  shall not take any such  action  unless a period of  fifteen
Business Days shall have elapsed after receipt of such notice by Beneficiary and
Beneficiary  shall not have  objected  in writing  to such  action  during  such
period.

Article 4
MISCELLANEOUS

            Section  4.01.  Notices.   All  notices  and  other   communications
hereunder  shall be in  writing  and shall be deemed to have been duly  given if
mailed or  transmitted by any standard  forms of  telecommunication.  Notices to
Beneficiary  shall  be  directed  to it  care  of  Credit  Suisse  First  Boston
Corporation,  Eleven Madison  Avenue,  New York,  New York 10010,  Telecopy No.:
(212) 325-8175,  Attention:  Ricardo  Harewood and notices to Guarantor shall be
directed  to  Guarantor  at 8410 West  Bryn Mawr  Avenue,  Suite  700,  Chicago,
Illinois 60631, Attention: Chief Financial Officer, with a copy to Telephone and
Data  Systems,  Inc.,  30  North  La  Salle  Street,  Suite  4000,  Chicago,  IL
60602-2507,  Attention:  Treasurer, Telephone No.: (312) 630-1900, Telecopy No.:
(312) 634-0442,  with a copy to Sidley Austin Brown & Wood, Bank One Plaza, 10S.
Dearborn,  Chicago, IL 60603, Attention:  Stephen Fitzell,  Telephone No.: (312)
853-7000, Telecopy No.: (312) 853-7036.

            Section   4.02.   Governing   Law;   Submission   to   Jurisdiction;
Severability; Waiver of Jury Trial; Service of Process. (a) This Guarantee shall
be governed by and  construed  in  accordance  with the laws of the State of New
York without  reference to choice of law doctrine and each party hereto  submits
to the jurisdiction of the Courts of the State of New York and the United States
District Court located in the Borough of Manhattan in New York City.

            (b) To  the  extent  permitted  by  law,  the   unenforceability  or
invalidity of any provision or provisions of this Guarantee shall not render any
other provision or provisions herein contained unenforceable or invalid.

            (c) Guarantor and Beneficiary hereby irrevocably and unconditionally
waive any and all right to trial by jury in any legal proceeding  arising out of
or related to this Guarantee.

            (d) The parties  irrevocably  consent to service of process given in
the manner  provided for notices in . Nothing in this  Guarantee will affect the
right of either party to serve process in any other manner permitted by law.



                                       6




            Section  4.03.   Matters  Related  to  Credit  Suisse  First  Boston
Corporation,  as Agent.  The rights and obligations of the Agent shall be as set
forth in Section 9.09 of the Securities Contract.

            Section 4.04.  Amendments,  Waivers. Any provision of this Guarantee
may be amended or waived if, and only if, such amendment or waiver is in writing
and signed,  in the case of any amendment,  by Beneficiary  and Guarantor and in
the case of any waiver,  by  Beneficiary.  No failure or delay by Beneficiary in
exercising  any right,  power or privilege  hereunder  shall operate as a waiver
thereof nor shall any single or partial  exercise  thereof preclude any other or
further exercise thereof or the exercise of any other right, power or privilege.
The rights and remedies herein provided shall be cumulative and not exclusive of
any rights or remedies provided by law.

            Section 4.05. No Third Party Rights,  Successors  and Assigns.  This
Agreement is not intended and shall not be construed to create any rights in any
person other than  Guarantor,  Beneficiary and their  respective  successors and
assigns and no other person  shall assert any rights as third party  beneficiary
hereunder.  Whenever any of the parties  hereto is referred  to, such  reference
shall be deemed to include the  successors  and  assigns of such party.  All the
covenants  and  agreements  herein  contained by or on behalf of  Guarantor  and
Beneficiary shall bind, and inure to the benefit of, their respective successors
and assigns  whether so expressed or not, and shall be  enforceable by and inure
to the benefit of Beneficiary  and its  successors  and assigns.  The rights and
duties of Guarantor  under this  Guarantee may not be assigned or transferred by
any party hereto without the prior written consent of  Beneficiary.  Beneficiary
may assign or transfer any of its rights or duties  hereunder  without the prior
written consent of Guarantor.

            Section 4.06.  Counterparts.  This  Guarantee may be executed in any
number of counterparts, and all such counterparts taken together shall be deemed
to constitute one and the same agreement.


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            IN WITNESS WHEREOF, the parties have signed this Guarantee as of the
date and year first above written.

                          GUARANTOR:

                          UNITED STATES CELLULAR CORPORATION



                          By: /s/ LeRoy T. Carlson, Jr.
                          Name:  LeRoy T. Carlson, Jr.
                          Title: Chairman

                          By: /s/ Kenneth R. Meyers
                          Name:  Kenneth R. Meyers
                          Title: Executive Vice President - Finance
                                 (Chief Financial Officer) and Treasurer


BENEFICIARY:

CREDIT SUISSE FIRST BOSTON
    INTERNATIONAL


By:  /s/ Edmond Curtin
Name:  Edmond Curtin
Title: Managing Director
       Legal and Compliance Department


By:  /s/ John Biggs
Name:  John Biggs
Title: Director
       Legal and Compliance Department

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AGENT:

CREDIT SUISSE FIRST BOSTON
   CORPORATION


By:    /s/ Timothy D. Bock
Name:  Timothy D. Bock
Title: Managing Director

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