FORM 4
[__] Check this box if no longer
subject to Section 16. Form 4 or Form
5 obligations may continue.
See Instruction 1(b).

(Print or Type Responses) UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility
Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person^*    McKenzie, W. Thorpe (Last)                      (First)                      (Middle)
  735 Broad Street - Suite 1108 (Street)
  Chattanooga, TN 37402 (City)                      (State)                      (Zip)
2. Issuer Name and Ticker
    or Trading Symbol
   Covista Communications - CVST 3. I.R.S. Identification
    Number of Reporting
    Person, if an entity
    (voluntary)
    ###-##-#### 4. Statement for
    (Month/Day/Year)
   04/28/03
5. If Amendment,
    Date of Original
    (Month/Day/Year)

6. Relationship of Reporting Person(s) to Issuer (Check all applicable)

   X    Director                                __   10% Owner

  __   Officer (give title below)        __   Other (specify below)

          7. Individual or Joint/Group Filing (Check Applicable Line)
  _ X _    Form filed by One Reporting Person
  ____    Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1. Title of Security     (Instr. 3)	2. Transaction Date     (Month/Day/Year)	2A. Deemed Execution       Date, if any       (Month/Day/Year)	3. Transaction Code     (Instr. 8)		4. Securities Acquired (A) or     Disposed of (D)     (Instr. 3, 4, and 5)			5. Amount of     Securities     Beneficially     Owned     Following     Reported     Transaction(s)     (Instr. 3 and 4)	6. Ownership Form:     Direct (D) or     Indirect (I)     (Instr. 4)	7. Nature of Indirect Beneficial     Ownership     (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/28/03		P		11,000	A	2.1964	1,060,727	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned

(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security     (Instr. 3)

2. Conver-     sion or     Exercise     Price of     Deri-     vative     Security

3. Transaction     Date  (Month/     Day/ Year)

3A. Deemed       Execution Date,       if any (Month/       Day/ Year)

4. Transaction Code          (Instr.8)

5. Number of     Derivative     Securities Acquired     (A)     or Disposed of (D)     (Instr. 3, 4 and 5)

6. Date Exercisable and     Expiration Date     (Month/Day/Year)

7. Title and Amount     of  Underlying     Securities     (Instr. 3 and 4)

8. Price of     Derivative     Security     (Instr. 5)

9. Number of     Derivative     Securities     Beneficially     Owned     Following     Reported     Transaction(s)     (Instr. 4)

10. Ownership      Form of      Derivative      Securities:      Direct (D)      or      Indirect (I)      (Instr. 4)

11. Nature of       Indirect       Beneficial       Ownership       (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Explanation of Responses:
/s/ Thomas W. Lifsey for W. Thorpe McKenzie	04/29/03
** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. * If the form is filed by more than one reporting person, see Instruction 4(b)(v). ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations.         See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). Note:   File three copies of this Form, one of which must be manually signed. If space is insufficient,             See Instruction 6 for procedure.