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                                                                  EXHIBIT 10.2.9


                                  AMENDMENT 002
                                       TO
                   IDEN INFRASTRUCTURE [ * ] SUPPLY AGREEMENT
                                     BETWEEN
                                 MOTOROLA, INC.
                                       AND
                           NEXTEL COMMUNICATIONS, INC.

This Amendment is between Motorola, Inc. a Delaware corporation ("Motorola") and
Nextel Communications, Inc. ("Customer") and amends the iDEN Infrastructure
[ * ] Supply Agreement dated as of April 13, 1999, as previously amended,
("[ * ] Supply Agreement").

WHEREAS, the parties have mutually agreed to enter into this Amendment to the
[ * ] Supply Agreement in order to encourage efforts to enhance the reputation
of iDEN in the United States market place by establishing improvement plans for
Customer operations and Motorola support of Customer's iDEN systems in the
United States; and

WHEREAS, this Amendment shall set joint Customer/Motorola uptime goals ("Overall
System Uptime") and penalties if they are not reached and system outage ("System
Outages") penalties by Motorola; and

WHEREAS, the parties agree to jointly develop plans and procedures capable of
meeting the overall system uptime goals and dramatically reducing system
outages; and

NOW THEREFORE, Consideration of their mutual promises the parties agree as
follows.

I.     OVERALL SYSTEM AVAILABILITY

       i)            Based on data provided by Customer, Motorola will measure
              system availability on a 24 hour basis as well as between the
              hours of 7:00 AM and 11:00 PM.

       ii)           Motorola and Customer jointly agree the quarterly goals for
              Overall System Uptime between the hours of 7:00 AM and 11:00 PM
              shall be as follows:

                     (a)    [ * ]
                     (b)    [ * ]
                     (c)    [ * ]
                     (d)    [ * ]
                     (e)    [ * ]

       iii)          [ * ]

        iv)          [ * ]

              (a)           [ * ]

              (b)           [ * ]


Motorola/Nextel Agreement                     Amendment 002 to iDEN [ * ] Supply

       * Confidential portions omitted and filed separately with the Commission
pursuant to an application for confidential treatment pursuant to Rule 24b-2
under the Securities and Exchange Act of 1934, as amended.

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              (c)           [ * ]

              (d)           [ * ]

II.    [ * ]

       [ * ]

III.   SYSTEM OUTAGE

       A.     System Outage Penalty

              (i)           Motorola will pay Customer on a per hour basis for
                     each system outage as defined below [ * ]

                     a)     [ * ]
                     b)     [ * ]
                     c)     [ * ]
                     d)     [ * ]

              (ii)          [ * ]

              (iii)         The above penalties will be assessed upon
                     notification to Motorola, Director of Customer Operations
                     for Nextel, of an event and continue until such event has
                     been corrected and the element is deemed to be in service
                     and fully functional, less any time required to collect
                     failure logs. [ * ]

              (iv)          [ * ]

       B.     System Outage Exclusions

              (i)           [ * ]

              (ii)          [ * ]

              (iii)         [ * ]

              (iv)          [ * ]

              (v)           [ * ]

              (vi)          [ * ]

              (vii)         [ * ]

              (viii)        [ * ]

              (ix)          [ * ]

              (x)           [ * ]


Motorola/Nextel Agreement                     Amendment 002 to iDEN [ * ] Supply

       * Confidential portions omitted and filed separately with the Commission
pursuant to an application for confidential treatment pursuant to Rule 24b-2
under the Securities and Exchange Act of 1934, as amended.

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              (xi)          [ * ]

              (xii)         [ * ]

              (xiii)        [ * ]

IV.    GENERAL

       A.  [ * ]

       B.  [ * ]

              (i)    [ * ]

              (ii)   [ * ]


       C.     [ * ]

              (i)           [ * ]

D.     Infrastructure Notice of Claim

              (i)           Customer must make notice of claim in writing to
                     Motorola within 72 hours of Motorola's notification to
                     Customer of direct cause of failure for each outage
                     occurrence. This claim must include an explanation of the
                     rationale for the claim.

              (ii)          Motorola will define a process for responding to
                     Customer claims by April 1, 2000.

              (iii)         Motorola agrees to distribute all direct cause
                     outage reports to the Chief Operating Officer, Chief
                     Technology Officer, Executive Vice President of Engineering
                     and Operations and the Vice President and Director of
                     Operations at Customer.

E.     Other Provisions

              (i)           Parties recognize that to insure minimum restoration
                     time, it may be necessary to forego collection of valuable
                     trace data that would allow for root cause analysis. If
                     customer desires to extend outage duration to collect trace
                     data, Motorola liability terminates upon such notice.


Motorola/Nextel Agreement                     Amendment 002 to iDEN [ * ] Supply

       * Confidential portions omitted and filed separately with the Commission
pursuant to an application for confidential treatment pursuant to Rule 24b-2
under the Securities and Exchange Act of 1934, as amended.

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              (ii)          The compensation provisions in this Amendment are
                     effective upon execution of this Amendment, but are made
                     retroactive to September 1, 1999. These penalty provisions
                     shall be in effect through December 31, 2000.

              (iii)         Motorola and Customer Senior Management have
                     developed a set of "joint goals" for the Customer
                     operations and Motorola support teams attached as Exhibit
                     I. Achievement of the goals at an agreed upon threshold
                     level will result in a formal recognition/program incentive
                     to be agreed to by the parties.

F.     Extension of Penalty Provisions

       The parties agree to negotiate in good faith on modification or extension
       of these provisions beyond End of Year 2000 based on perceived benefit of
       these provisions and changes in system performance. A formal review of
       the penalty program will be conducted at the end of Q1 2000.

G.     Dispute Resolution

       Disputes and Dispute Resolution with regards to this Penalty/Incentive
       program will be resolved as outlined in paragraph 30.0 of the [ * ]
       Infrastructure Supply Agreement.

The iDEN [ * ] Supply Agreement shall remain in full force and effect except as
expressly amended hereby.

IN WITNESS WHEREOF, this Amendment has been executed and delivered by the
parties set forth below.

MOTOROLA, INC.                            NEXTEL COMMUNICATIONS, INC.

By:/s/ Charles F. Wright                  By:/s/ Stephen Taylor       12/30/99
   -------------------------                 ---------------------------------
    (Authorized Signatory)                        (Authorized Signatory)

Name: Charles F. Wright                   Name: Stephen Taylor

Title: Sr. V.P. & G.M. CSG-NA             Title: V.P. - Supply Chain Management


Motorola/Nextel Agreement                     Amendment 002 to iDEN [ * ] Supply

       * Confidential portions omitted and filed separately with the Commission
pursuant to an application for confidential treatment pursuant to Rule 24b-2
under the Securities and Exchange Act of 1934, as amended.