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                                                                  Exhibit 10.29

                            INDEMNIFICATION AGREEMENT

         AGREEMENT made and entered into this ____ day of ___________, (the
"Agreement"), by and between Covista Communications, Inc., a New Jersey
corporation and its subsidiaries (hereinafter collectively referred to as the
"Company"), and ___________________ (hereinafter referred to as "Indemnitee").

         WHEREAS, it is reasonable, prudent and necessary for the Company
contractually to obligate itself to indemnify Indemnitee to the fullest extent
permitted by applicable law so that he will serve or continue to serve the
Company free from undue concern that he will not be so indemnified; and

         WHEREAS, Indemnitee is willing to serve, continues to serve and to take
on additional service for or on behalf of the Company on the condition that he
be so indemnified;

         NOW THEREFORE, in consideration of the premises and the covenants
contained herein, the Company and the Indemnitee do hereby covenant and agree as
follows:

         SECTION 1. Service by Indemnitee. Indemnitee agrees to continue to
serve as a director and/or officer of the Company. Indemnitee may at any time
and for any reason resign from such position (subject to any other contractual
obligation or any obligation imposed by operation of law), in which event the
Company shall have no obligation under this Agreement to continue such
indemnification of such former director and/or officer.

         SECTION 2. Indemnification - General. The Company shall indemnify, and
advance Expenses (as hereinafter defined) to Indemnitee as provided by
applicable law in effect on the date hereof and to such greater extent as
applicable law may thereafter from time to time permit. The rights of Indemnitee
provided under the preceding sentence shall include, but shall not be limited
to, the rights set forth in the other Sections of this Agreement.

         The indemnification provided under this Agreement is in addition to and
not in lieu of any other indemnification provided to Indemnitee by any other
agreement or by operation of law.

         SECTION 3. Proceeding Other Than Proceedings by or in the Right of the
Company. Indemnitee shall be entitled to the rights of indemnification provided
in this Section 3 if, by reason of his Corporate Status (as hereinafter
defined), he is, or is threatened to be made, a party to any threatened,
pending, or completed Proceeding (as hereinafter defined), other than a
Proceeding by or in the right of the Company. Pursuant to this Section 3,
Indemnitee shall be indemnified against Expenses, judgments, penalties, fines
and amounts paid in settlement actually and reasonably incurred by him or on his
behalf in connection with such Proceeding or any claim, issue or matter therein,
if he acted in good faith and in a manner he reasonably believed to be in or not
opposed to the best interest of the Company, and, with response to any criminal
Proceeding, if he had no reasonable cause to believe his conduct was unlawful.

         SECTION 4. Proceedings by or in the Right of the Company. Indemnitee
shall be entitled to the rights of indemnification provided in this Section 4
if, by reason of his Corporate Status, he is, or is threatened to be made, a
party to any threatened, pending or completed Proceeding brought by or in the
right of the Company to procure a judgment in its favor. Pursuant to this
Section, Indemnitee shall be indemnified against Expenses actually and
reasonably incurred by him or on his behalf in connection with

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such Proceeding if he acted in good faith and in a manner he reasonably believed
to be in or not opposed to the best interest of the Company. Notwithstanding the
foregoing, no indemnification against such Expenses shall be made in respect of
any claim, issue or matter in such Proceeding as to which Indemnitee shall have
been adjudged to be liable to the Company if applicable law prohibits such
indemnification; provided, however, that, if applicable law so permits,
indemnification against Expenses shall nevertheless be made by the Company in
such event if and only to the extent that the Court in which such Proceeding
shall have been brought or is pending, shall determine.

         SECTION 5. Indemnification for Expenses of a Party Who is Wholly or
Partly Successful. Notwithstanding any other provision of this Agreement, to the
extent that Indemnitee is, by reason of his Corporate Status, a party to and is
successful, on the merits or otherwise, in any Proceeding, he shall be
indemnified against all Expenses actually and reasonably incurred by him or on
his behalf in connection therewith. If Indemnitee is not wholly successful in
such Proceeding but is successful, on the merits or otherwise, as to one or more
but less than all of the claims, issues or matters in such Proceeding, the
Company shall indemnify Indemnitee against all Expenses actually and reasonably
incurred by him or on his behalf in connection with each successfully resolved
claim, issue or matter. For purposes of this Section and without limitation, the
termination of any claim, issue or matter in such a Proceeding by settlement or
dismissal, with or without prejudice, shall be deemed to be a successful result
as to such claim, issue or matter.

         SECTION 6. Indemnification for Expenses of a Witness. Notwithstanding
any other provision of this Agreement, to the extent that Indemnitee is, by
reason of his Corporate Status, a witness in any Proceeding, he shall be
indemnified against all Expenses actually and reasonably incurred by him or on
his behalf in connection therewith.

         SECTION 7. Advancement of Expenses. The Company shall advance all
reasonable Expenses incurred by or on behalf of Indemnitee in connection with
any Proceeding within twenty (20) days after the receipt by the Company of a
statement or statements from Indemnitee requesting such advance or advances from
time to time, whether prior to or after final disposition of such Proceeding.
Such statement or statements shall reasonably evidence the Expenses incurred by
Indemnitee and shall include or be preceded or accompanied by an undertaking by
or on behalf of Indemnitee to repay any Expenses advanced if it shall ultimately
be determined that Indemnitee is not entitled to be indemnified against such
Expenses.

         SECTION 8. Procedure for Determination of Entitlement to
Indemnification.

         (a) To obtain indemnification under this Agreement, Indemnitee shall
submit to the Secretary of the Company a written request, including therein or
therewith such documentation and information as is reasonably available to
Indemnitee and is reasonably necessary to determine whether and to what extent
Indemnitee is entitled to indemnification. The Secretary of the Company shall,
promptly upon receipt of such a request for Indemnification, advise the Board of
Directors in writing that Indemnitee has requested indemnification.

         (b) Upon written request by Indemnitee for indemnification pursuant to
the first sentence of Section 8(a) hereof, a determination, if required by
applicable law, with respect to Indemnitee's entitlement thereto shall be made
in the specific case: (i) if a Change in Control (as hereinafter defined) shall
have occurred, by Independent Counsel (as hereinafter defined) unless Indemnitee
shall request that such determination be made by the Board of Directors or the
stockholders of the Company, in which case by the person or persons or in the
manner provided for in clauses (ii) or (iii) of this Section 8(b) in a

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written opinion to the Board of Directors, a copy of which shall be delivered
to Indemnitee; (ii) if a Change of Control shall not have occurred, (A) by the
Board of Directors by a majority vote of a quorum consisting of Disinterested
Directors (as hereinafter defined), or (B) if a quorum of the Board of Directors
consisting of Disinterested Directors is not obtainable or, even if obtainable,
such quorun of Disinterested Directors so directs, by Independent Counsel in a
written opinion to the Board of Directors, a copy of which shall be delivered to
Indemnitee or (C) by the stockholders of the Company; or (iii) as provided in
Section 9(b) of this Agreement; and if it is so determined that Indemnitee is
entitled to indemnification, payment to Indemnitee shall be made within ten (10)
days after such determination.

         Indemnitee shall reasonably cooperate with the person, persons or
entity making such determination with respect to Indemnitee's entitlement to
indemnification, including providing to such person, persons or entity upon
reasonable advance request any documentation or information which is not
privileged or otherwise protected from disclosure and which is reasonably
available to Indemnitee and reasonably necessary to such determination. Any
costs or expenses (including attorney's fees and disbursements) incurred by
Indemnitee in so cooperating with the person, persons or entity making such
determination shall be borne by the Company (irrespective of the determination
as to Indemnitee's entitlement to indemnification) and the Company hereby
indemnifies and agrees to hold Indemnitee harmless therefrom.

         (c) In the event the determination of entitlement to indemnification is
to be made by Independent Counsel pursuant to Section 8(b) hereof, the
Independent Counsel shall be selected as provided in this Section 8(c). If a
Change of Control shall not have occurred, the Independent Counsel shall be
selected by the Board of Directors, and the Company shall give written notice to
the Indemnitee advising him of the identity of the Independent Counsel so
selected. If a Change of Control shall have occurred, the Independent Counsel
shall be selected by Indemnitee (unless Indemnitee shall request that such
selection be made by the Board of Directors, in which event the preceding
sentence shall apply), and Indemnitee shall give written notice to the Company
advising it of the identity of the Independent Counsel so selected. In either
event, Indemnitee or the Company, as the case may be, may within seven (7) days
after such written notice of selection shall have been given, deliver to the
Company or to Indemnitee, as the case may be, a written objection to such
selection. Such objection may be asserted only on the ground that the
Independent Counsel so selected does not meet the requirements of "Independent
Counsel" as defined in Section 17 of this Agreement, and the objection shall set
forth with particularity the factual basis of such assertion. If such written
objection is made, the Independent Counsel so selected may not serve as
Independent Counsel unless and until a court has determined that such objection
is without merit. If, within twenty (20) days after submission by Indemnitee of
a written request for indemnification pursuant to Section 8(a) hereof, no
Independent Counsel shall have been selected and not objected to, either the
Company or Indemnitee may petition an appropriate court of the State of New
Jersey or any other court of competent jurisdiction (the "Court") for resolution
of any objection which shall have been made by the Company or Indemnitee to the
other's selection of Independent Counsel of a person selected by the Court or by
such other person as the Court shall designate, and the person with respect to
whom an objection is so resolved or the person so appointed shall act as
Independent Counsel under Section 8(b) hereof. The Company shall pay all
reasonable fees and expenses of Independent Counsel incurred by such Independent
Counsel in connection with acting pursuant to Section 8(b) hereof, and the
Company shall pay all reasonable fees and expenses incident to the procedures of
this Section 8(c), regardless of the manner in which such Independent Counsel
was selected or appointed. Upon the due commencement of any judicial proceeding
or arbitration pursuant to Section 19(a)(iii) of this Agreement, Independent
Counsel shall be discharged and relieved of any further responsibility in such
capacity (subject to the applicable standards of professional conduct then
prevailing).

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         SECTION 9. Presumptions and Effect of Certain Proceedings.

         (a) If a Change of Control shall have occurred, in making a
determination with respect to entitlement to indemnification hereunder, the
person, persons or entity making such determination shall presume that
Indemnitee is entitled to indemnification under this Agreement if Indemnitee has
submitted a request for indemnification in accordance with Section 8(a) of this
Agreement, and the Company shall have the burden of proof to overcome such
presumption in connection with the making by any person, persons or entity of
any determination contrary to that presumption.

         (b) If the person, persons or entity empowered or selected under
Section 8(a) of this Agreement to determine whether Indemnitee is entitled to
indemnification shall not have made a determination within sixty (60) days after
receipt by the Company of the request therefor, the requisite determination of
entitlement to indemnification shall be deemed to have been made and Indemnitee
shall be entitled to such indemnification, absent (i) misstatement by Indemnitee
of a material fact, or an omission of a material fact necessary to make
Indemnitee's statements not materially misleading, in connection with the
request for indemnification, or (ii) a prohibition of such indemnification under
applicable law; provided, however, that such sixty (60) day period may be
extended for a reasonable time, not to exceed an additional thirty (30) days, if
the person, persons or entity making the determination with respect to
entitlement to indemnification in good faith requires such additional time for
the obtaining or evaluation of documentation and/or information relating
thereto; and provided further, that the foregoing provisions of this Section
9(b) shall not apply (i) if the determination of entitlement to indemnification
is to be made by the stockholders pursuant to Section 8(b) of this Agreement and
(A) within fifteen (15) days after receipt by the Company of the request for
such determination, the Board of Directors has resolved to submit such
determination to the stockholders for their consideration at an annual meeting
thereof to be held within seventy-five (75) days after such receipt and such
determination is made thereat, or (B) a special meeting of stockholders (i)
called within thirty (30) days after such receipt for the purpose of making such
determination, such meeting is held for such purpose within fifty (50) days
after having been so called and such determination is made thereat, or (ii) if
the determination of entitlement to indemnification is to be made by the
Independent Counsel pursuant to Section 8(b) of this Agreement.

         (c) The termination of any Proceeding or of any claim, issue or matter
therein, by judgment, order, settlement or conviction, or upon a plea of nolo
contendere or its equivalent, shall not (except as otherwise expressly provided
in this Agreement) of itself adversely affect the right of Indemnitee to
indemnification or create a presumption that Indemnitee did not act in good
faith and in a manner which he reasonably believed to be in or not opposed to
the best interests of the Company or, with respect to any Criminal Proceeding,
that Indemnitee had reasonable cause to believe that his conduct was unlawful.

         SECTION 10. Remedies of Indemnitee.

         (a) In the event that (i) a determination is made pursuant to Section 8
of this Agreement that Indemnitee is not entitled to indemnification under this
Agreement, (ii) advancement of Expenses is not timely made pursuant to Section 7
of this Agreement, (iii) the determination of entitlement of indemnification is
to be made by Independent Counsel pursuant to Section 8(b) of this Agreement and
such determination shall not have been made and delivered in a written opinion
within ninety (90) days after receipt by the Company of the request for
indemnification, or (iv) payment of indemnification is not made pursuant to
Section 6 of this Agreement within ten (10) days after receipt by the Company of
a written request therefor, or (v) payment of indemnification is not made within
ten (10) days after a determination has been made that Indemnitee is entitled to
indemnification or such determination is

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deemed to have been made pursuant to Section 8 or 9 of this Agreement,
Indemnitee shall be entitled to an adjudication in an appropriate court of the
State of New Jersey, or in any other court of competent jurisdiction, of his
entitlement to such indemnification or advancement of Expenses. Alternatively,
Indemnitee, at his option, may seek an award in arbitration to be conducted by
a single arbitrator in Newark, New Jersey or New York, New York pursuant to the
rules of the American Arbitration Association. Indemnitee shall commence such
proceeding seeking an adjudication or an award in arbitration within 180 days
following the date on which Indemnitee first has the right to commence such
proceeding pursuant to this Section 10(a). The Company shall not oppose
Indemnitee's right to seek any such adjudication or award in arbitration.

         (b) In the event that a determination shall have been made pursuant to
Section 8 of this Agreement that Indemnitee is not entitled to indemnification,
any judicial proceeding or arbitration commenced pursuant to this Section 10
shall be conducted in all respects as a de novo trial, or arbitration, on the
merits and Indemnitee shall not be prejudiced by reason of that adverse
determination. If a Change of Control shall have occurred, in any judicial
proceeding or arbitration commenced pursuant to this Section 10, the Company
shall have the burden of proving that Indemnitee is not entitled to
indemnification or advancement of Expenses, as the case may be.

         (c) If a determination shall have been made or deemed to have been made
pursuant to Section 8 or 9 of this Agreement that Indemnitee is entitled to
indemnification, the Company shall be bound by such determination in any
judicial proceeding or arbitration commenced pursuant to this Section 10, absent
(i) a misstatement by Indemnitee of a material fact, or an omission of a
material fact necessary to make Indemnitee's statements not material misleading,
in connection with the request for indemnification, or (ii) a prohibition of
such indemnification under applicable law.

         (d) The Company shall be precluded from asserting in any judicial
proceeding or arbitration commenced pursuant to this Section 10 that the
procedures and presumptions of this Agreement are not valid, binding and
enforceable and shall stipulate in any such court or before such arbitrator that
the Company is bound by all the provisions of this Agreement.

         (e) In the event that Indemnitee, pursuant to this Section 10, seeks a
judicial adjudication of or an award in arbitration to enforce his rights under,
or to recover damages for breach of, this Agreement, Indemnitee shall be
entitled to recover from the Company, and shall be indemnified by the Company
against, any and all expenses (of the types described in the definition of
Expenses in Section 17 of this Agreement) actually and reasonably incurred by
him in such judicial adjudication or arbitration, but only if he prevails
therein. If it shall be determined in said judicial adjudication or arbitration
that Indemnitee is entitled to receive part but not all of the indemnification
or advancement of expenses sought, the expenses incurred by Indemnitee in
connection with such judicial adjudication or arbitration shall be appropriately
prorated.

         SECTION 11. Non-Exclusivity; Survival of Rights; Insurance,
Subrogation.

         (a) The rights of indemnification and to receive advancement of
Expenses as provided by this Agreement shall not be deemed exclusive of any
other rights to which Indemnitee may at any time be entitled under applicable
law, the Certificate of Incorporation, the Bylaws, any agreement, a vote of
stockholders or a resolution of directors, or otherwise. No amendment,
alteration or termination of this Agreement or any provision hereof shall be
effective as to any Indemnitee with respect to any action taken or omitted by
such Indemnitee in his Corporate Status prior to such amendment, alteration or
termination.

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         (b) To the extent that the Company maintains an insurance policy or
policies providing liability insurance for directors, officers, employees,
agents or fiduciaries of the Company or of any other corporation, partnership,
joint venture, trust, employee benefit plan or other enterprise which such
person serves at the request of the Company, Indemnitee shall be covered by such
policy or policies in accordance with its or their terms to the maximum extent
of the coverage available for any such director, officer, employee or agent
under such policy or policies.

         (c) In the event of any payment under this Agreement, the Company shall
be subrogated to the extent of such payment to all of the rights of recovery of
Indemnitee, who shall execute all papers required and take all action necessary
to secure such rights, including execution of such documents as are necessary to
enable the Company to bring suit to enforce such rights.

         (d) The Company shall not be liable under this Agreement to make any
payment of amounts otherwise indemnifiable hereunder if and to the extent that
Indemnitee has otherwise actually received such payment under any insurance
policy, contract, agreement or otherwise.

         SECTION 12. Duration of Agreement. This Agreement shall continue until
and terminate upon the later of: (a) ten (10) years after the date that
Indemnitee shall have ceased to serve as a director and/or officer, or (b) the
final termination of all pending Proceedings in respect of which Indemnitee is
granted rights of indemnification or advancement of Expenses hereunder and of
any proceeding commenced by Indemnitee pursuant to Section 10 of this Agreement
relating thereto. This Agreement shall be binding upon the Company and its
successors and assigns and shall inure to the benefit of Indemnitee and his
heirs, executors and administrators.

         SECTION 13. Severability. If any provision or provisions of this
Agreement shall be held to be invalid, illegal or unenforceable for any reasons
whatsoever: (a) the validity, legality and enforceability of the remaining
provisions of this Agreement (including without limitation, each portion of any
Section of this Agreement containing any such provisions held to be invalid,
illegal or enforceable, that is not itself invalid, illegal or unenforceable)
shall not in any way be affected or impaired thereby; and (b) to the fullest
extent possible, the provisions of this Agreement (including, without
limitation, each portion of any Section of this Agreement containing any such
provision held to be invalid, illegal or unenforceable, that is not itself
invalid, illegal or unenforceable) shall be construed so as to give effect to
the intent manifested by the provision held invalid, illegal or unenforceable.

         SECTION 14. Exception to Right of Indemnification or Advancement of
Expenses. Notwithstanding any other provision of this Agreement, Indemnitee
shall not be entitled to indemnification or advancement of Expenses under this
Agreement with respect to any Proceeding, or any claim therein, brought or made
by him against the Company.

         SECTION 15. Identical Counterparts. This Agreement may be executed in
one or more counterparts, each of which shall for all purposes be deemed to be
an original but all of which together shall constitute one and the same
Agreement. Only one such counterpart signed by the party against whom
enforceability is sought needs to be produced to evidence the existence of this
Agreement.

         SECTION 16. Headings.  The headings of the paragraphs of this Agreement
are inserted for convenience only and shall not be deemed to constitute part of
this Agreement or to affect the construction thereof.

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         SECTION 17. Definitions.  For purposes of this Agreement:

         (a) "Change in Control" means a change in control of the Company which
shall be deemed to have occurred if after the Effective Date (i) any "person" is
or becomes the "beneficial owner" directly or indirectly, of securities of the
Company representing 25% or more of the combined voting power of the Company's
then outstanding securities; (ii) the Company is a party to a merger,
consolidation, sale of assets or other reorganization, or a proxy contest, as a
consequence of which members of the Board of Directors in office immediately
prior to such transaction or event constitute less than a majority of the Board
of Directors thereafter; or (iii) during any period of two consecutive years,
individuals who at the beginning of such period constituted the Board of
Directors (including for this purpose any new director whose election or
nomination for election by the Company's stockholders was approved by a vote or
at least two-thirds of the directors then still in office who were directors at
the beginning of such period) cease for any reason to constitute at least a
majority of the Board of Directors.

         Company in this Section 17(a) shall mean Covista Communications, Inc.
and any related company in which the Indemnitee is an officer, director or
employee.

         (b) "Corporate Status" describes the status of a person who is or was a
director, officer, employee, agent or fiduciary of the Company or of any other
corporation, partnership, joint venture, trust, employee benefit plan or other
enterprise which such person is or was serving at the request of the Company.

         (c) "Disinterested Director" means a director of the Company who is not
and was not a party to the Proceeding in respect of which indemnification is
sought by Indemnitee.

         (d) "Effective Date" means

         (e) "Expenses" shall include all reasonable attorney's fees, retainers,
court costs, transcript costs, fees of experts, witness fees, travel expenses,
duplicating costs, printing and binding costs, telephone charges, postage,
delivery service fees, and all other disbursements or expenses of the types
customarily incurred in connection with prosecuting, defending, preparing to
prosecute or defend, investigating, or being or preparing to be a witness in a
Proceeding.

         (f) "Independent Counsel" means a law firm, or member of a law firm,
which or who is experienced in matters of corporation law and neither currently
is, nor in the past five years has been, retained to represent: (i) the Company
in any material matter, or (ii) any other party to the Proceeding giving rise to
a claim for indemnification hereunder. Notwithstanding the foregoing, the term
"Independent Counsel" shall not include any person who, under the applicable
standards of professional conduct then prevailing, would have a conflict of
interest in representing either the Company or Indemnitee in an action to
determine Indemnitee's rights under this Agreement.

         (g) "Proceeding" includes any action, suit, arbitration, alternate
dispute resolution mechanism, investigation, administrative hearing or any other
proceeding whether civil, criminal, administrative or investigative, except one
initiated by an Indemnitee pursuant to Section 10 of this Agreement to enforce
his rights under this Agreement.

         SECTION 18. Modification and Waiver. No supplement, modification or
amendment of this Agreement shall be binding unless executed in writing by both
of the parties hereto. No waiver of any of

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the provisions of this Agreement shall be deemed or shall constitute a waiver of
any other provisions hereof (whether or not similar) nor shall such waiver
constitute a continuing waiver.

         SECTION 19. Notice by Indemnitee. Indemnitee agrees promptly to notify
the Company in writing upon being served with any summons, citation, subpoena,
complaint, indictment, information or other document relating to any Proceeding
or matter which may be subject to indemnification or advancement of Expenses
covered hereunder.

         SECTION 20. Notices. All notices, requests, demands and other
communications hereunder shall be in writing and shall be deemed to have been
duly given if (i) delivered by hand and receipt for by the party to whom said
notice or other communications shall have been directed, or (ii) mailed by
certified or registered mail with postage prepaid, on the third business day
after the date on which it is so mailed:

         (a) If to the Indemnitee, to:

         The address of the Indemnitee located on the signature page at the end
of this Agreement.

         (b) If the Company, to:

             Overlook at Great Notch
             150 Clove Road
             Little Falls, N.J. 07424

         SECTION 21 Governing Law. The parties agree that this Agreement shall
be governed by, and construed and enforced in accordance with, the laws of the
State of New Jersey.

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement on
the day and year first above written.

ATTEST

By:___________________________              By:___________________________

                                            INDEMNITEE

                                            ------------------------------

                                            Address:______________________

                                                    ----------------------

                                                    ----------------------<Page>

                                                                   Exhibit 10.30

                                 PROMISSORY NOTE

DATE:             July 2, 2001
----

PRINCIPAL AMOUNT: $4,000,000
----------------

         FOR VALUE RECEIVED, Covista Communications, Inc., a New Jersey
corporation (the "MAKER"), does hereby covenant and promise to pay to Henry G.
Luken, III, of 400 Fairway Lane, Soddy Daisy, Tennessee 37379 ("PAYEE"), in
legal tender of the United States, the Principal Amount set forth above,
together with interest thereon at the rate of 8% per annum from the date hereof,
which Principal Amount Maker has from time to time previously advanced to Maker.
The Principal Amount and all accrued interest hereon shall be due and payable in
full in a single installment on February 1, 2003.

         Notwithstanding anything to the contrary herein, Maker shall have the
right to prepay any part of or the entire outstanding Principal Amount of this
Promissory Note in full at any time without premium or penalty and without
discount and without prior notice to Payee.

         This Promissory Note may not be changed orally, but only by an
agreement in writing, signed by the party against whom enforcement of any
waiver, change, modification or discharge is sought.

         Should the indebtedness represented by this Promissory Note or any part
thereof be collected at law or in equity, or in bankruptcy, receivership or any
other court proceedings (whether at the trial or appellate level), or should
this Promissory Note be placed in the hands of attorneys for collection upon
default, Maker agrees to pay, in addition to the principal and interest due and
payable hereon, all costs of collection or attempting to collect this Promissory
Note, including reasonable attorneys' fees and expenses.

         All parties to this Promissory Note, whether Maker, principal, surety,
guarantor or endorser, hereby waive presentment for payment, demand, protest,
notice of protest and notice of dishonor.

         Anything herein to the contrary notwithstanding, the obligations of
Maker under this Promissory Note shall be subject to the limitation that
payments of interest shall not be required to the extent that receipt of any
such payment by payee would be contrary to provisions of law applicable to Payee
limiting the maximum rate of interest that may be charged or collected by Payee.

         This Promissory Note and the rights and obligations of the parties
hereunder shall in all respects be governed by, and construed and enforced in
accordance with, the laws of the state of New Jersey (without giving effect to
New Jersey's principles of conflicts of law) and the parties hereto submit to
the non-exclusive jurisdiction of any New Jersey or Federal court sitting in New
Jersey over any suit, action or proceeding arising out of or relating to this
Promissory Note.

         This Promissory Note shall be binding upon the successors and assigns
and any purchaser of substantially all of the assets of Maker. This Promissory
Note may not be assigned by Maker without the

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prior written consent of Payee, PROVIDED, HOWEVER, that this Promissory Note may
be assigned by Maker without the consent of Payee in connection with the merger
or consolidation of the Maker or upon the sale of substantially all of the
assets or stock of the Maker.

         IN WITNESS WHEREOF, Maker has executed and delivered this Promissory
Note on the day and year first above written.

                                    COVISTA COMMUNICATIONS, INC.
WITNESS:

                                    By:_____________________________
________________________            Name:___________________________
Name:                               Its: ___________________________

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