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                                                                Exhibit (10)(AP)

                             LEASE SCHEDULE NO. 002
                                       TO
                       MASTER LEASE AGREEMENT NO. AFI0192

     Reference is made to Lease Schedule No. 001 dated July 25, 2001 (the
"Schedule") to Master Lease Agreement No. AFI0192 dated July 25, 2001 (the
"Master Lease") between APPLIED FINANCIAL, INC. (the "Lessor") and COVISTA
COMMUNICATIONS, INC. (the "Lessee").

     This Schedule incorporates by reference the terms and conditions of the
Master Lease, Exhibit A (the "Property Description") and Exhibit B (the
"Casualty Loss Schedule"), and constitutes a separate "Lease" between Lessor and
Lessee. All capitalized terms used herein but not defined herein shall have the
same meanings ascribed to them in the Master Lease.

1.   Property: Alcatel Phone Switch as more fully described on the attached
     Exhibit A of _____ pages, which by this reference becomes a part hereof.

2.   Property Location: Atlanta, Georgia

3.   Acceptance Date: As specified in the Acceptance Certificate

4.   Initial Period: Thirty-six (36) months from Commencement Date

5.   Monthly Rental: $35,937.50, plus applicable sales tax

6.   Deposit: $35,937.50 applied to the last Monthly Rental, plus applicable
     sales tax

7.   Total Cost: $1,250,000.00

8.   Lease Rate Factor: .02875

9.   Floating Lease Rate Factor: The Lease Rate Factor of .02875 shall increase
     .000069966 for every five (05) basis point increase in thirty-six (36)
     month U.S. Treasury Notes as of the Acceptance Date of the Property (the
     "Revised Lease Rate Factor"), at which time the final Monthly Rental under
     this Schedule shall be adjusted by multiplying the Total Cost, indicated in
     Section 7, by the Revised Lease Rate Factor. The thirty-six (36) month U.S.
     Treasury Note yield used as the basis for the derivation of the Revised
     Lease Rate Factor herein is 4.40%.

10.  For purposes of this Lease Schedule No. 1 only, and provided no Event of
     Default has occurred and is continuing under the Lease, the following
     amendment shall apply: In the fourth




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     line of Section 18(m) of the Master Lease "twelve (12) additional months"
     shall be changed to "seven (7) additional months". In the fifth line of
     Section 18(m) of the Master Lease immediately after the phrase "at the rate
     specified on the respective Schedule", insert the phrase "after which
     Lessee shall purchase all, but not less than all, of the Property for the
     price of $1.00.

11.  Representation of Lessee: Lessor and Lessee agree that this Schedule
     constitutes a "finance lease" under the Uniform Commercial Code - Article
     2A, in that (a) Lessee has selected the Property in its sole discretion,
     (b) Lessor has acquired the Property solely for purposes of leasing such
     Property under this Schedule, and (c) Lessee has received a copy of the
     contract evidencing Lessor's purchase of the Property.

LESSOR:                                  LESSEE:

APPLIED FINANCIAL, INC.                  COVISTA COMMUNICATIONS, INC.

BY:                                      BY:
       ------------------------------           --------------------------------

TITLE: Assistant Vice President          TITLE:
                                                --------------------------------