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Exhibit 10.21    
  


GUARANTY  


        This Guaranty, dated as of October 22, 2002 is made by Telephone and Data Systems, Inc. (the "Guarantor"), in favor of Societe Generale (the
"Counterparty"). 


        1.    Guaranty.    In order to induce the Counterparty to enter into the variable prepaid forward transactions, the
terms and conditions of which are set forth in the confirmations (the "Confirmations"; the transactions thereby confirmed, the "Transactions") dated as of October 22, 2002, October 29,
2002, November 19, 2002 and December 2, 2002 between Counterparty and the Guarantor's wholly-owned subsidiary, TDSI Corporation ("Primary Obligor"), the Guarantor absolutely and
unconditionally guarantees to the Counterparty, its successors and permitted assigns, the prompt payment when due of the Guaranteed Obligations, as defined below. Except as expressly provided herein,
such guarantee shall be without regard to any counterclaim, set-off, deduction or defense of any kind which Primary Obligor or the Guarantor may have or assert against Counterparty, and
without abatement, suspension, deferment or diminution on account of any event or condition whatsoever; provided however, that Guarantor's obligations
under this Guaranty shall be subject to Primary Obligor's rights to set-off as provided in the Agreement, as defined below. "Guaranteed Obligations" shall mean the sum of (i) any
and all floating amount payment obligations of Primary Obligor under the Confirmations and (ii) the difference between (a) all other amounts payable by Primary Obligor under the
Agreement with respect to the Transactions, whether due or to become due, secured or unsecured, joint or several (together with the floating rate payment obligations described in (i) above, the
"Primary Obligations") together with any and all costs and expenses (including reasonable legal fees and expenses) incurred by Counterparty in enforcing Counterparty's rights under this Guaranty less
(b) the value of the Collateral; provided however that in the event that the Counterparty uses its reasonable best efforts to realize the value
of the Collateral by setoff, sale, acceptance or any other means available to Counterparty under the Agreement and is unable to realize the full value of the Collateral within 30 days after the
date on which Counterparty first becomes able to exercise its rights under Paragraph 8(a) of the Credit Support Annex, as defined below, "Guaranteed Obligations" shall mean the difference
between (a) the Primary Obligations together with any and all expenses (including reasonable legal fees and expenses) incurred by Counterparty in enforcing Counterparty's rights under this
Guaranty less (b) the value of the Collateral the Counterparty is able to realize within such 30 days, if any. The Primary Obligations shall include interest on overdue payments owed
pursuant to the Agreement, as provided in Section 2(e) and Section 6(d)(ii) of the Master Agreement at the rates provided for therein. The term "Master Agreement" means the ISDA
Master Agreement dated the date hereof between Counterparty and Primary Obligor; the term "Credit Support Annex" means the Credit Support Annex supplementing and forming part of the Master Agreement;
and the term "Agreement" means the Master Agreement,
the Credit Support Annex and the Confirmations, taken together as composing one and the same contract. 



        2.    Nature of Guaranty.    This Guaranty is a guarantee of payment and not of collection. Any amounts or deliveries
that would be owed or due by Primary Obligor to the Counterparty under the Agreement but are unenforceable or not allowable against Primary Obligor because Primary 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 Guaranty. Subject to the requirement in paragraph 1 of
this Guaranty that Counterparty use its reasonable best efforts to collect against the Collateral, the Counterparty shall not be obligated, as a condition precedent to performance by the Guarantor
hereunder, to file any claim relating to the Primary Obligations in the event that Primary Obligor becomes subject to a bankruptcy, liquidation, reorganization or similar case or proceeding, and the
failure of the Counterparty to file a claim shall not affect the Guarantor's obligations hereunder. This Guaranty shall continue to be effective or be reinstated, as the case may be, if at any
time any payment to the Counterparty by Primary Obligor on account of any Obligation is returned to Primary Obligor or is rescinded upon the insolvency, bankruptcy, liquidation or reorganization of
Primary Obligor or otherwise, all as though such payment has not been made. 





 



        3.    Guaranty Absolute.    The liability of Guarantor under this Guaranty shall be irrevocable, absolute and
unconditional irrespective of, and Guarantor hereby irrevocably waives, any defenses it may or hereafter have (other than those defenses expressly provided for in this Guaranty) in any way relating to
any or all of the following: (a) any lack of validity or enforceability of the Agreement or this Guaranty; (b) the entry into additional transactions, any indulgences, concession, waiver
or consent given to the Primary Obligor or any other changes in the amount, time, manner or place of payment of, or in any other term of any or all of, the Primary Obligations; (c) any taking,
exchange, release, non-perfection, realization or application of or on any security (other than the requirement that the Counterparty use its reasonable best efforts to realize upon and
apply the Collateral to the Primary Obligations as described in Paragraph 1 of this Guaranty); (d) any change, restructuring or termination in or of the structure or existence of the
Primary 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
the Primary Obligor. 


        4.    Waivers and Acknowledgments.    The Guarantor waives demands, promptness, diligence and all notices that may be
required by law or to perfect the Counterparty's rights hereunder except notice to the Guarantor of a default by Primary Obligor under the Agreement. No failure, delay or single or partial exercise by
the Counterparty of its rights or remedies hereunder shall operate as a waiver of such rights or remedies. All rights and remedies hereunder or allowed by law shall be cumulative and exercisable from
time to time. 


        5.    Representations and Warranties.    The Guarantor hereby represents and warrants that: 



        (a)  the
Guarantor is duly organized, validly existing and in good standing under the laws of Delaware; 



        (b)  the
Guarantor has the requisite corporate power and authority to issue this Guaranty and to perform its obligations hereunder, and has duly authorized, executed and
delivered this Guaranty; 


        (c)  the
Guarantor is not required to obtain any authorization, consent, approval, exemption or license from, or to file any registration with, any government authority as a
condition to the validity of, or to the execution, delivery or performance of, this Guaranty; 


        (d)  as
of the date of this Guaranty, there is no action, suit or proceeding pending or threatened against the Guarantor before any court or arbitrator or any governmental
body, agency or official in which there is a reasonable possibility of an adverse decision which could affect, in a materially adverse manner, the ability of the Guarantor to perform any of its
obligations under, or which in any manner questions the validity of, this Guaranty; 


        (e)  the
execution, delivery and performance of this Guaranty by the Guarantor does not contravene or constitute a default under any statute, regulation or rule of any
governmental authority or under any provision of the Guarantor's certificate of incorporation or by-laws or any contractual restriction binding on the Guarantor; 


        (f)    this
Guaranty constitutes the legal, valid and binding obligation of the Guarantor enforceable in accordance with its terms, subject to the effect of any bankruptcy,
insolvency, reorganization, moratorium or similar law affecting creditors' rights generally, and to general principles of equity (regardless of whether such enforceability is considered in a
proceeding in equity or at law); and 


        (g)  the
obligations of the Guarantor under this Guaranty shall rank pari passu with other unsecured obligations of the
Guarantor. 




        6.    Subrogation.    Upon payment by Guarantor of any sums to Counterparty under this Guaranty, all rights of
Guarantor against Primary Obligor arising as a result thereof by way of right of 


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subrogation or otherwise shall in all respects be subordinate and junior in right of payment to the prior indefeasible payment in full of the Primary Obligations. 


        7.    Termination.    The Guarantor hereby waives any right to terminate or revoke this Guaranty and acknowledges that
its obligations under this Guaranty are continuing in nature. 



        8.    Notices.    Any notice or communication required or permitted to be made hereunder shall be made in the same
manner and with the same effect, unless otherwise specifically provided herein, as set forth in the Agreement. 


        9.    GOVERNING LAW; JURISDICTION.    This Guaranty shall be governed by and construed in accordance with the laws of
the State of New York. The Guarantor hereby irrevocably consents to, for the purposes of any proceeding arising out of this Guaranty, the exclusive 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. 



        10.    Waiver of Immunity.    To the extent that the Guarantor has or hereafter may acquire any immunity from
jurisdiction of any court or from any legal process (whether through service or notice, attachment prior to judgment, attachment in aid of execution, execution or otherwise) with respect to the
Guarantor or the Guarantor's property, the Guarantor hereby irrevocably waives such immunity in respect of the Guarantor's obligations under this Guaranty. 


        11.    Waiver of Jury Trial.    The Guarantor hereby irrevocably waives all right to trial by jury in any action,
proceeding or counterclaim (whether based on contract, tort or otherwise) arising out of or relating to this Guaranty or the negotiation, administration or enforcement hereof. 


        12.    Miscellaneous.    Each reference herein to the Guarantor, Counterparty or Primary Obligor shall be deemed to
include their respective successors and assigns. The provisions hereof shall inure in favor of each such successor or assign. This Guaranty (i) shall supersede any prior or contemporaneous
representations, statements or agreements, oral or written, made by or between the parties with regard to the subject matter hereof, (ii) may be amended only by a written instrument executed by
the Guarantor and Counterparty and (iii) may not be assigned by either party without the prior written consent of the other party. 


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        IN
WITNESS WHEREOF, the undersigned has executed this Guaranty as of the date first above written. 



	TELEPHONE AND DATA SYSTEMS, INC.	 
	

By:	
 	

/s/  LEROY T. CARLSON, JR.      
	

 
	 	 	Name:	LeRoy T. Carlson, Jr.	 
	 	 	Title:	Chairman	 
	

and	

 
	

By:	
 	

/s/  SANDRA L. HELTON      
	

 
	 	 	Name:	Sandra L. Helton	 
	 	 	Title:	Executive Vice President

& Chief Financial Officer	 




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Exhibit 10.21