Document:

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                                                                 Exhibit 10.13.3

       Amendment No. 2 to the General Agreement for Purchase of Personal
                  Communications Systems and Services Between
               TeleCorp PCS, Inc., and Lucent Technologies Inc.

This is the second amendment ("Amendment No.2") to the General Agreement for the
Purchase of Personal Communications Systems and Services ("Agreement"), Contract
No. LNM980501JATEL, between TeleCorp PCS, Inc., a Delaware corporation
("Customer"), and Lucent Technologies Inc. ("Seller" or "Lucent"), a Delaware
corporation, and is made effective as of the date September 18, 1998.
Capitalized terms not defined herein shall have the same meaning given to such
terms in the Agreement.

        WHEREAS, the undersigned parties have previously entered into the
General Agreement and Amendment No. 1 to the General Agreement (the "First
Amendment"); and

        WHEREAS, the undersigned parties now wish to modify the General
Agreement as stated in this Amendment.

        NOW, THEREFORE, in consideration of the premises contained herein and
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the undersigned parties hereby agree to modify the General
Agreement as follows:

        1.  Customer agrees to bear responsibility for installation of MAUs at
        cell sites for which the MAUs were not available at the time of original
        cell site installation and tower construction. Installation of the MAUs
        will be done in accordance with Attachment A of this Amendment, "MAU
        Statement of Work."

        2.  Seller agrees to credit Customer an amount not to exceed $1,600 per
        cell site for which Customer (or its agent) performs installations of
        MAUs. This credit is only available for installations in New Orleans,
        Memphis, Little Rock, and/or New England market areas and will be
        applied to Customer's future purchases from Seller. Customer and Seller
        agree to jointly track these installations in order to determine the
        appropriate credits.

        3.  Seller remains responsible for assigning available MAUs to specific
        cell sites.

        4.  Attachment C of the General Agreement, Responsibility Matrix, is
        hereby amended to remove the reference to "Draft". The section
        "SiteInstallation/Integration," item 7, is changed to reflect that this
        item is the Customer's responsibility.

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        5.  Seller agrees to credit Customer an amount not to exceed $500 per
        cell site for which Customer (or its agent) performs AC electrical
        connectivity in the market areas of New Orleans, Memphis, Little Rock,
        and New England. Customer shall be eligible to receive a credit pursuant
        to mutually acceptable terms to be agreed upon for other domestic
        markets as they are awarded to Customer. Seller agrees to credit
        Customer an amount not exceed $800 per cell site for which Customer (or
        its agent) performs AC electrical connectivity in Puerto Rico. This
        credit will be applied to Customer's future purchases from Seller.
        Customer and Seller agree to jointly track these installations in order
        to determine the appropriate credits.

        6.  Except as modified by this Amendment, all terms and conditions of
        the Agreement shall remain in effect and be fully applicable to this
        Amendment.

        7.  Deference shall be granted to this Amendment and to any documents
        attached hereto in the event of a conflict between this Amendment and
        the Agreement.

    IN WITNESS WHEREOF, the parties have caused this Second Amendment to be
    executed by their duly authorized representatives on the date(s) indicated.

TeleCorp PCS, Inc.                      Lucent Technologies Inc.

By: /s/ Tom Sullivan                    By: /s/ Charles M. Many
   ----------------------------            ---------------------------
Name: Tom Sullivan                      Name: Charles M. Many
     --------------------------              -------------------------
Title: Executive Vice President         Title: Vice President - Sales
       and General Counsel                    ------------------------
      -------------------------
Date: 3/18/99                           Date: 3/22/99
     --------------------------              -------------------------<PAGE>

                                                                EXHIBIT 10.13.4

       Amendment No. 3 to the General Agreement for Purchase of Personal
                  Communications Systems and Services Between
                TeleCorp PCS, Inc., and Lucent Technologies Inc.

        This is the third amendment ("Amendment No. 3") to the General Agreement
for the Purchase of Personal Communications Systems and Services ("General
Agreement"), Contract No. LNM980501JATEL, between TeleCorp PCS, Inc., a Delaware
corporation ("Customer"), and Lucent Technologies Inc. ("Seller" or Lucent"), a
Delaware corporation, and is entered into as of November 10th, 1998. Capitalized
not defined herein shall have the meaning given to such terms in the General
Agreement.

        WHEREAS, the undersigned parties have previously entered into the
General Agreement as amended by Amendment No.1 and Amendment No.2; and

        WHEREAS, the undersigned parties now wish to modify the General
Agreement as stated in this Amendment.

        NOW, THEREFORE, in consideration of the premises contained herein and
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the undersigned parties hereto agree to modify the General
Agreement as follows:

        1.  Customer hereby places a Purchase Order for Lucent to ship the
following Products: 100 cell sites and 200 radio/amplifier pairs, as more fully
set forth on Attachment A to this Amendment No. 3. Customer hereby agrees that
Seller shall issue an invoice(s) on Delivery(ies) of these Products and
Customer agrees to pay said invoice(s) within thirty (30) days of its (their)
issuance. Title and risk of loss shall transfer to Customer upon Delivery.

        2.  Sub-Article 1.1 HEADINGS AND DEFINITIONS is hereby amended by adding
the term "Delivery" which shall read as follows: "Delivery means the Delivery of
Products and Licensed Materials F.O.B. (defined in accordance with Incoterms
1990, as may be updated from time to time) at Seller's staging or manufacturing
facilities in Columbus, Ohio, Omaha, Nebraska, or any other Seller's
manufacturing facility and, with respect to batteries only, Dallas, Texas."

        3.  Sub-Article 1.4 MINIMUM MARKET COMMITMENT is hereby amended by
adding Puerto Rico, and by adding the following sentence at the end of the
sub-article: "Customer agrees that during the term of this Agreement Seller
shall be the exclusive supplier of MSC Products and Base Station Products and
related Licensed Materials in any additional expansion Market that Customer
elects to build out, provided Seller provides additional vendor financing for
such Market on terms and in amounts (the amounts being 50% of the projected
first five year purchase of Products, Licensed Materials and Services

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from Lucent for such Market: the "Projected Purchases") generally equivalent to
the existing Series A and C Bonds (it being agreed that the financing for 15% of
the Projected Purchases shall be evidenced by Series A Bonds and 35% by Series C
Bonds, for an aggregate of 50% of the Projected Purchases).

        4.      Paragraph (a) of Sub-Article 1.12 INVOICES AND TERMS OF PAYMENT
is hereby retroactively amended to the effective date of the General Agreement
and shall continue through the remaining term of the General Agreement to read
as follows:

                "For the Products and Licensed Materials (including
                transportation charges and taxes, if applicable) listed on
                Attachment A to the General Agreement shipped on or after the
                date of this Amendment, Customer shall be invoiced one hundred
                percent (100%) of the purchase price on Delivery or as soon
                thereafter as practicable. Customer shall pay the invoiced
                amounts within thirty (30) days of the date of Seller's invoice.
                For the Products and Licensed Materials (including
                transportation charges and taxes, if applicable) listed on
                Attachment A to the General Agreement which were shipped prior
                to the date of this Amendment and invoiced on a progress or
                percentage payment method, any outstanding percentage will be
                invoiced by Seller immediately and Customer will pay such
                invoiced amounts within thirty (30) days from the date of
                Seller's invoice(s).

                For the Products and Licensed Materials (including
                transportation charges and taxes, if applicable) which are not
                listed on Attachment A to the Genral Agreement, Customer and
                Seller shall mutually agree at the time of an order for such
                Products and Licensed Materials as to the invoicing and payment
                terms.

                Invoicing for the four million dollar ($4,000,000) Optional
                Feature RTU per MSC with respect to each of the first four (4)
                MSC's shall occur on Delivery of such Optional Features, and
                payment for said invoices shall be due thirty (30) days after
                the date of Seller's invoice. Invoicing for the four million
                dollar ($4,000,000) Optional Feature RTU per MSC with respect to
                MSC's other that the first four (4) MSC's shall occur on
                Delivery of such Optional Features, and payment for said
                invoices shall be due thirty (30) days after Acceptance of the
                Initial System relating to such MSC.

                In every case, engineering will be billed upon Delivery of
                Products and installation will be billed as performed or as soon
                thereafter as practical."
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        5.      Notwithstanding anything to the contrary contained in this
Amendment or in the General Agreement, Customer shall not have the right to
return to Lucent any Products or Licensed Materials listed on Attachment A to
the General Agreement as a result of any delay in Provisional, Final or System
Acceptance and Customer's only rights or remedies as a result of any such delay
shall be to have Lucent timely correct any failure or problem necessary to
obtain Provisional, Final or System Acceptance and to recover liquidated or
other damages as provided for in the General Agreement.

        6.      Paragraph (c) of Sub-Article 1.12 INVOICES AND TERMS OF PAYMENT
is hereby deleted in its entirety.

        7.      Except as modified by this Amendment, all terms and conditions
of the General Agreement (as amended by Amendment 1 and Amendment 2) shall be
fully applicable to this Amendment.

        8.      Deference shall be granted to this Amendment hereto in the event
of a conflict between this Amendment and the General Agreement.

        IN WITNESS WHEREOF, the parties have caused this Amendment No. 3 to be
executed by their duly authorized representative on the date(s) indicated.

TeleCorp PCS, Inc.                       Lucent Technologies Inc.

By:         /s/ RP Druski                By:       /s/ Kenneth J. Farrell
    ---------------------------------         ---------------------------------

Name:          RP Druski                 Name:       Kenneth J. Farrell
      -------------------------------          --------------------------------

Title:             CFO                   Title:        Sales Director
       ------------------------------           -------------------------------

Date:            11-10-98                 Date:            11-10-98
      -------------------------------           -------------------------------

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