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                                                               EXHIBIT 10.10(d)



                          CONSENT AND AMENDMENT NO. 4

         CONSENT AND AMENDMENT NO. 4, dated as of November 9, 1998 (this
"Agreement"), by and among WORLDPORT INTERNATIONAL, INC., a Delaware
corporation (the "Company"), WORLDPORT COMMUNICATIONS, INC., a Delaware
corporation (the "Parent"), the other Loan Parties (as defined in the Credit
Agreement referred to below) the Lenders (as defined in the Credit Agreement)
which are a party hereto (including Bankers Trust Corporation, in its
individual capacity) and BANKERS TRUST COMPANY, as Administrative Agent (in
such capacity, the "Agent") and Collateral Agent (in such capacity, the
"Collateral Agent") and as joint creditor with the other Lenders under the
Credit Agreement, each as defined below.

                              W I T N E S S E T H:

         WHEREAS, the Company and the Parent are parties to a Credit Agreement
dated as of June 23, 1998 (as in effect, the "Credit Agreement") with the
Lenders, the Agent and the Collateral Agent;

         WHEREAS, Bankers Trust Corporation, a Lender under the Credit
Agreement, previously extended a loan to the Company in the aggregate principal
amount of $2,500,000 (the "October 30, 1998 Loan") pursuant to Consent and
Amendment No. 3 and the Second Short Term Note Letter Agreement (as defined in
the Credit Agreement), a portion of the proceeds of which were used to repay in
full a certain loan to the Company in the aggregate principal amount of
$1,000,000 made on October 21, 1998;

         WHEREAS, the Parent and the Company have requested that the Lenders
agree to make additional term loans (the "Additional Loans") in an aggregate
principal amount of $4,500,000, which Additional Loans shall (i) be guaranteed
by each member of the Group to the extent permissible under applicable law,
(ii) be secured by a Lien granted by each member of the Group in the Collateral
and (iii) rank senior to the other Obligations under the Credit Agreement;

         WHEREAS, proceeds of the Additional Loans will be used, among other
things, to repay in full the October 30, 1998 Loan;




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         WHEREAS, the Parent and the Company have covenanted and agreed to
issue equity securities upon the terms and as provided in Section 5.16(d) of
the Credit Agreement (the "New Equity Securities");

         WHEREAS, as a condition to the making of the Additional Loans and
Additional Senior Notes (as defined herein), the Agent and the Lenders have
required that the Parent and Company agree that the Lenders shall have the
right to convert the Additional Loans and the Additional Senior Note into New
Equity Securities, subject to the terms set forth herein;

         WHEREAS, Bankers Trust Corporation will be the initial sole Lender of
the Additional Loans (the "Initial Lender");

         WHEREAS, Dreyfus Premier Limited Term High Income Fund, the holder of
the Senior Note issued by the Company under the Credit Agreement (the "Note
Purchaser"), desires to purchase an amount equal to 10% of the Additional Loans
provided to the Company by the Initial Lender but the Note Purchaser cannot
purchase the Additional Loans in their current form;

         WHEREAS, the Initial Lender desires to exchange a portion of its
Additional Loans to an Additional Senior Note (as defined in the Credit
Agreement as amended hereby);

         WHEREAS, the Parent and the Company have requested that the Agent and
the Lenders, in accordance with the terms of the Credit Agreement provide the
Additional Loans, subject to the terms and conditions set forth herein.

         NOW THEREFORE, in consideration of the foregoing premises and for
other good and valuable consideration, the sufficiency of which is hereby
acknowledged, the parties hereto agree to the following:

         1.       Defined Terms. Capitalized terms used but not otherwise 
defined herein shall have the respective meanings ascribed thereto in the
Credit Agreement.

         2.       Amendments. Effective on the Effective Date (as herein 
defined):

                  A.       The following definitions are added to Section 1.01
of the Credit Agreement in their appropriate alphabetical order:

                  "Additional Commitment" shall mean, with respect to any
                  Lender, such Lender's undertaking to make Additional Loans
                  hereunder subject to the terms and conditions hereof, in an
                  aggregate outstanding principal amount as of the Second
                  Closing Date not to exceed the amount set forth next to the
                  name of such Lender



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                  on Schedule 1 to Consent and Amendment No. 4 and, thereafter,
                  subject to reduction pursuant to the Credit Agreement. Upon
                  the assignment of any Lender's obligations under the terms of
                  the Credit Agreement the amount of such Lender's undertaking
                  shall be adjusted accordingly. The aggregate principal amount
                  of all Additional Commitments shall not exceed US$4,500,000.

                  "Additional EnerTel Guaranty shall mean the Guaranty by
                  EnerTel delivered pursuant to Section 4 of Consent and
                  Amendment No. 4

                  "Additional Loan" shall have the meaning set forth in Section
                  2.1.

                  "Additional Loan Commitment Termination Date" means November
                  20, 1998.

                  "Additional Note" means that certain promissory note of the
                  Borrower to Bankers Trust Corporation dated November 13,
                  1998, in an aggregate principal amount of $4,500,000,
                  maturing June 23, 1999, together with any replacement or
                  substitution therefor.

                  "Additional Senior Note" shall have the meaning set forth
                  therefor in Section 2.18.

                  "Consent and Amendment No. 4" means that certain Consent and
                  Amendment No. 4 dated as of November 9, 1998 among the
                  Company, the Parent, the other Loan Parties, the Lenders and
                  the Agent and Collateral Agent.

                  "New Equity" means any class of equity securities of the
                  Parent or any security or other instrument into which such
                  equity security may be exchanged or converted into, which
                  does not, and could not reasonably be expected to, adversely
                  affect creditor rights in favor of the Agent, Collateral
                  Agent or Lenders, or such other security which is on terms
                  reasonably satisfactory to the Agent, Collateral Agent and
                  Lenders. Capital raised on the terms detailed on the
                  "Proposed EnerTel Debt Investment" term sheet attached as
                  Schedule I to Consent and Amendment No. 4 shall qualify as
                  reasonably satisfactory to the Lenders.

                  "New Equity Securities" shall have the meaning set forth
                  therefor in Consent and Amendment No. 4.

                  "October 30, 1998 Loan" shall have the meaning set forth
                  therefor in Consent and Amendment No. 4.

                  "Original Loan" means the Term Loan made by the Lenders to
                  the Company on June 23, 1998.

                  "Original Note" means that certain note issued to evidence
                  the Original Loan.



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                  "Original Senior Note" means that certain Senior Note issued
                  to the Note Purchaser on July 10, 1998 pursuant to the Credit
                  Agreement.

                  "Registration Rights Agreement" shall mean a Registration
                  Rights Agreement substantially similar to Exhibit A attached
                  to Consent and Amendment No. 4 among the Parent, the Agent,
                  the Lenders and the Note Purchaser.

                  "Second Closing Date" means the date on which all of the
                  conditions set forth in Section 3.3 have been satisfied or
                  waived and on which proceeds of the initial Additional Loan
                  is made.

                  "Senior Notes" mean, collectively, the Original Senior Note
                  and Additional Senior Note.

                  B.       The definition of "Finance Documents" set forth in
         Section 1.1 of the Credit Agreement is amended by adding the phrase
         "the Additional Note, the Additional Senior Note, the Additional
         EnerTel Guaranty, the Letter Agreement delivered pursuant to Section
         4(k) of Consent Amendment No. 4" after the phrase "each Assignment and
         Assumption Agreement" appearing therein.

                  C.       All references to "Loan" set forth in the Credit
         Agreement shall be deemed to include the Additional Loan (including
         amounts thereof evidenced by the Additional Senior Note). All
         references to "Note" set forth in the Credit Agreement shall be deemed
         to include the Additional Note.

                  D.       The definition of Note Purchaser shall be amended by
         replacing it with the following:

                  "Note Purchaser" shall mean the holder of the Senior Note
         issued by the Company in accordance with Section 2.16 and the
         Additional Senior Note issued by the Company in accordance with
         Section 2.18, together with any other holder of the Senior Note and/or
         Additional Senior Note.

                  E.       Section 2.1 of the Credit Agreement is amended by
         adding a new subsection (c) thereto which shall read as follows:

                  (c)      (i) Subject to and upon the terms and conditions of
         this Agreement, each Lender severally and not jointly agrees to make
         additional term loans (each an "Additional Loan") to the Company from
         the Second Closing Date to the Additional Loan Commitment Termination
         Date in a sum not to exceed such Lender's Additional Commitment,
         provided that the aggregate principal amount of the Additional Loans
         shall not exceed $4,500,000 (plus interest capitalized with respect to
         the Additional Loan after the Second Closing Date or such lower amount
         as contemplated by this Agreement). Subject to the terms set forth in
         this Agreement, an amount of Additional Loans equal to $3,500,000
         shall be provided on the Second Closing Date and any other Additional
         Loans shall be made in one additional borrowing in an aggregate
         principal amount of



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         $1,000,000, such additional borrowing of Additional Loans to be made
         during the calendar week following the Second Closing Date.

                   (ii)    The Additional Loans shall rank senior to the Term
         Loan with respect to payments of interest and principal.

                  (iii)    The Additional Loan Commitment (including any
         unutilized portion) shall expire on the Additional Loan Commitment
         Termination Date.

                  F.       For purposes of Section 2.2 and 2.3, all references
         to "Term Loans" shall be deemed to refer to Loans.

                  G.       Section 2.5(a) is restated in its entirety as 
         follows:

                           (a)      Voluntary. The Company may repay, in whole
                  or in part, the outstanding principal amount of the Loans at
                  any time and from time to time on the following terms and
                  conditions:

                                    (i)      the Company shall give the
                  Administrative Agent and the Note Purchaser prior to 12:00
                  Noon (New York time) at least one Business Days' prior
                  written notice (or telephonic notice promptly confirmed in
                  writing) of its intent to prepay the Loans and the amount of
                  such prepayment to be prepaid, which notice the
                  Administrative Agent shall promptly transmit to each of the
                  Lenders. If the Additional Note and Additional Senior Loan
                  have been repaid in full, together with accrued interest, the
                  Company may give the Administrative Agent and the Note
                  Purchaser prior to 12:00 Noon (New York time) at least one
                  Business Days' prior written notice (or telephonic notice
                  promptly confirmed in writing) of its intent to prepay the
                  Term Loan and Original Senior Note and the amount of such
                  prepayment to be prepaid, which notice the Administrative
                  Agent shall promptly transmit to each of the Lenders

                                    (ii)     any prepayment shall be made first
                  of the Additional Loan and Additional Senior Note and shall
                  be made on a pro rata basis among the Additional Loan and the
                  Additional Senior Note, and with respect to the Additional
                  Loan, shall be applied pro rata among the Lenders that made
                  such Additional Loan; after repayment in full of the
                  Additional Loan, any prepayment shall be made on a pro rata
                  basis between the Term Loan and the Original Senior Note, and
                  with respect to each prepayment of the Term Loan, shall be
                  applied pro rata among the Lenders that made such Term Loan;

                                    (iii)    all notice of voluntary 
                  prepayments, once given to the Administrative Agent and Note
                  Purchaser, shall be irrevocable; and

                                    (iv)     once prepaid, any Loan (and the
                  amount so repaid under any Note and Senior Note) may not be
                  reborrowed.



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                  H. Section 2.5(b) is restated in its entirety as follows:

                  (b)      Mandatory Repayments of Additional Loan, Term Loan
         and Senior Notes. All Loans shall mature on the Maturity Date and
         shall be repaid in full by the Company on such date, without premium
         or penalty or further action on the part of any Lender, Note
         Purchaser, the Administrative Agent or the Collateral Agent. Once
         repaid the Loans (and the amount so repaid under the Notes and Senior
         Notes) may not be reborrowed."

                  I.       Section 2.7(a) is amended and restated as follows:

                  (a)      Term Loans and Additional Loans. The Company shall
         pay interest on the unpaid principal amount of the Term Loan and
         Additional Loans from the date on the which the Term Loan or each
         Additional Loan is made until such Term Loan or Additional Loan has
         been repaid in full, payable in arrears on each Quarterly Payment
         Date, upon each prepayment (on the amount prepaid), at the time of
         each principal repayment (on the amount so repaid), at maturity and
         after maturity on demand, in all cases at a per annum rate equal to
         the LIBO Rate plus the Applicable Margin, which per annum rate shall
         change simultaneously with each change in the LIBO Rate or as
         otherwise required by this Section 2.7.

                  J.       Section 2.8(a)(i) is amended and restated as 
         follows:

                  (a)(i)   Prepayments from Asset Sales. Upon receipt by the
         Parent, the Company or any of their Subsidiaries of Cash Proceeds of
         any Asset Sale occurring after the Closing Date, the Company shall
         prepay (A) first, the Additional Loan (including any amounts
         outstanding under the Additional Senior Note) (together with accrued
         interest) and (B) second, the Term Loan (including any amounts
         outstanding under the Senior Note), with the Net Cash Proceeds
         received from such Asset Sale, in the case of Asset Sales pursuant to
         clause (a) of the definition thereof, concurrently with the
         consummation of such Asset Sale, and with respect to all other Asset
         Sales, on a date not later than the Business Day next succeeding the
         earlier of (1) the 30th day after consummation of such Asset Sale
         unless prior to such date, the Parent, the Company or any such
         Subsidiary has entered into a firm order or commitment for the
         purchase of an asset or assets which shall be used in the Business and
         (2) the 90th day after the consummation of such Asset Sale if and to
         the extent that such Net Cash Proceeds are not applied by the Parent,
         the Company or any of their Subsidiaries to the replacement of such
         asset or assets with an asset or assets useful in the Business. In
         each case, such new asset shall be subject to the Security Interest of
         the Security Documents to the same extent as the asset subject to such
         Asset Sale or otherwise owned by a Loan Party or other member of the
         Group whose stock is pledged by a member of the Group pursuant to a
         Pledge Agreement. Concurrently, with the consummation of an Asset
         Sale, the Company shall deliver to the Agent an Officer's Certificate
         demonstrating the derivation of Net Cash Proceeds from the gross sales
         price of such Asset Sale.

                   K.      Section 2.8(a)(ii) is amended by inserting the 
         following sentence to the end thereof:



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                  "Such payments shall be applied first to the Additional Loan
         (including any amounts outstanding under the Additional Senior Note)
         (in each case together with accrued interest) and second to the Term
         Loan (including any amounts outstanding under the Senior Note) (in
         each case, together with accrued interest)."

                   L.      Section 2.8(a)(iii) is amended by replacing the 
         phrase "Term Loan" in the second line thereof with the phrase "Loan"
         and adding the following sentenced to the end thereof: "Such payments
         shall be applied first to the Additional Loan (including any amounts
         outstanding under the Additional Senior Note) (in each case together
         with accrued interest) and second to the Term Loan (including any
         amounts outstanding under the Senior Note) (in each case, together
         with accrued interest)."

                   M.      Section 2.8(e) is amended by replacing it with the
         following:

                   (e)(i)  All prepayments of the Additional Notes and the
         Additional Senior Note shall be paid to the Lenders and Note
         Purchaser, respectively, on a pro rata basis according to the sum of
         the aggregate outstanding principal amount of the Additional Loans
         owed to the Lenders and amounts owing under the Additional Senior Note
         to the Note Purchaser according to the aggregate outstanding principal
         amount of the Additional Senior Note.

                   (ii)    All prepayments of the Term Loan and Senior Note
         shall be paid to the Lenders and Note Purchaser, respectively, on a
         pro rata basis according to the sum of the aggregate outstanding
         principal amount of the Term Loan owed to the Lenders and amounts
         owing under the Senior Note to the Note Purchaser according to the
         aggregate outstanding principal amount of the Senior Note.

                   N.      Section 2.9 (e) is amended by:

                  (i)      insert new paragraphs with the headings "Third" and
         "Fourth" as follows:

                  Third: to the indefeasible payment of all accrued interest on
         the Additional Loan and the Additional Senior Note;

                  Fourth: to the indefeasible payment of the amounts of
         Obligations then due and unpaid under this Agreement with respect to
         the Additional Loans and the Additional Senior Notes for principal, in
         respect of which or for the benefit of which such money has been paid
         or collected, ratably, without preference or priority of any kind,
         according to the amounts due and payable on the Additional Notes for
         principal;

                  and (ii) renumbering the current paragraphs "Third," "Fourth"
         and "Fifth" as "Fifth," "Sixth" and "Seventh" respectively.



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                  O.       Section 2.10 is amended by inserting a new paragraph
         at the end as follows:

                  The Company agrees to use the proceeds of the Additional
         Loans as follows: first, proceeds shall be used to repay in full all
         outstanding amounts in respect of the October 30, 1998 Loan and
         second, the Company shall contribute directly or indirectly an amount
         not less than 50% of the proceeds of the Additional Loan to EnerTel to
         be used solely for EnerTel's working capital needs and, to the extent
         permitted in Section 6.24, otherwise shall be used and distributed to
         Parent to be used for working capital purposes of Parent and its
         Subsidiaries.

                  P.       Article II of the Credit Agreement is hereby amended
         by inserting a new Section 2.18 and 2.19 therein which shall read as
         follows:

                  Section 2.18      Exchange of Loan. The Note Purchaser agrees
                  that, upon the request of Bankers Trust Corporation, it shall
                  purchase an amount equal to ten percent (10%) of the
                  principal amount of Additional Loans made by Bankers Trust
                  Corporation (inclusive of the October 21, 1998 Loan),
                  provided that such purchase shall be consummated through an
                  exchange of such purchased amount of Additional Loans with
                  the issuance of an Additional Senior Note pursuant to the
                  terms hereof. The Company will, upon request (the "Exchange
                  Request") of the Initial Lender, execute and deliver to the
                  Initial Lender (or the Note Purchaser as it shall request) a
                  note in the form substantially similar to the Senior Note
                  (the "Additional Senior Note") bearing interest at the rate
                  equal to the rate set forth for the Term Loans pursuant to
                  Sections 2.7(a), 2.7(b) and 2.7(c), which Additional Senior
                  Note shall be dated the date of issuance of such Additional
                  Senior Note, shall be payable to the order of such holder,
                  shall mature on the Maturity Date and shall be in the same
                  principal amount of the Additional Loan being exchanged. The
                  Exchange Request shall specify the principal amount of the
                  Additional Note to be exchanged pursuant to this Section
                  2.18. Upon issuance by the Company of the Additional Senior
                  Note under this Section 2.18 in exchange for the portion of
                  the Additional Loan so exchanged, the Company shall, upon
                  request of the Initial Lender, issue a new Additional Note to
                  the Initial Lender corresponding to the aggregate principal
                  amount of the Additional Loan held by it in substitution for
                  the Additional Note originally issued on the Second Closing
                  Date. An Exchange Request shall be deemed to have been given
                  pursuant to the execution and delivery by the Company of
                  Consent and Amendment No. 4. Notwithstanding anything on the
                  contrary set forth herein, the Note Purchaser agrees to
                  purchase a pro rata portion of all Additional Loans from the
                  Initial Lender upon notice from the Initial Lender.

                  Section 2.19 (a)  Direct Payment. Notwithstanding anything to
                  the contrary in this Agreement or the Senior Note or
                  Additional Senior Notes, the Company will pay or cause to be
                  paid all amounts payable with respect to any Additional
                  Senior Notes held by each holder that is an institutional
                  holder (and each nominee



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                  thereof) and which has given written notice to the Company
                  requesting that the provisions of this subsection 2.19(a)
                  shall apply (without any presentment of such Additional
                  Senior Notes and without any notation of such payment being
                  made thereon) by crediting before 11:00 a.m. (New York time)
                  at the place of receipt, on the date payment is due, by
                  Federal funds bank wire transfer of Dollars, the account of
                  such holder (and each such nominee) in any bank in the United
                  States as may be designated in writing by such holder, or in
                  such other manner or to such other address in the United
                  States as may be designated in writing by such holder. The
                  listing of an address for payments on account of the
                  Additional Senior Notes on the signature page to Consent of
                  Amendment No. 4 with respect to any holder (and each nominee
                  thereof) shall constitute notice by such holder pursuant to
                  this subsection 2.19(a).

                  (b)      Maintenance of Office. The Company will maintain an
                  office or agency at the address set forth in Section 9.3,
                  where notices, presentations and demands in respect of this
                  Agreement or the Additional Senior Notes may be made upon it.
                  Such office will be maintained at such address until such
                  time as the Company will notify the holders of the Additional
                  Senior Notes of any change of location of such office, which
                  will in any event be located in the United States of America.

                  (c)      Delivery Expenses. If any holder that is an 
                  institutional holder (or any nominee thereof) surrenders any
                  Additional Senior Note or Senior Notes to the Company
                  pursuant to this Agreement, the Company will pay the cost of
                  delivering to or from the home office of such holder from or
                  to the Company, insured to the satisfaction of such holder,
                  the surrendered Additional Senior Note or Additional Senior
                  Notes and any Additional Senior Note or Additional Senior
                  Notes issued in substitution or replacement for the
                  surrendered Senior Note or Senior Notes.

                  (d)      Taxes. Without duplication of any amounts payable in
                  respect of the Senior Notes under Section 2.11, the Company
                  will pay all stamp, transfer and issue taxes and all other
                  levies, fees and impositions (including any interest or
                  penalty for nonpayment or delay in payment, but excluding any
                  income taxes) which may be payable or determined to be
                  payable in connection with the transactions contemplated by
                  this Agreement or in connection with any modification,
                  amendment or alteration of the Additional Senior Notes, and
                  the Company will save each holder harmless without limitation
                  as to time against any and all liabilities with respect to
                  all such stamp, transfer and issue taxes and all other
                  levies, fees and impositions (including any interest or
                  penalty for nonpayment or delay in payment). The obligations
                  of the Company under this subsection 2.19(d) shall survive
                  the payment or prepayment of the Senior Notes and the
                  termination of this Agreement.



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                  (e)      Ownership, Transfer or Exchange of Additional Senior
                  Notes

                           The Additional Senior Notes are issuable only in
                  fully registered form. The Company will keep at its office or
                  agency maintained as provided in subsection 2.19(b) a
                  register in which the Company shall provide for registration
                  and registration of transfer of the Additional Senior Notes.

                           Subject to the provisions of subsection 9.3(g), any
                  holder of an Additional Senior Note may at its option either
                  in person or by duly authorized attorney surrender the same
                  at said office or agency for exchange, accompanied if
                  surrendered for registration of transfer by a written
                  instrument of transfer duly executed by such holder or
                  attorney. In case such holder shall so request a transfer or
                  an exchange of its Additional Senior Note, the Company shall,
                  without expense to such holder, deliver to or upon the order
                  of such holder one or more Additional Senior Notes in the
                  same aggregate unpaid principal amount as the Additional
                  Senior Note so surrendered, each dated the date of, or, if
                  later, the date to which interest has been paid on, such
                  surrendered Additional Senior Note, in the principal amount
                  of $100,000 or any multiple of $1,000 in excess thereof, as
                  requested by such holder (provided that if such aggregate
                  unpaid principal amount is less than $100,000, the Company
                  will deliver one Additional Senior Note in exchange for the
                  Additional Senior Note so surrendered), and registered in
                  such name or names as shall be specified in writing by such
                  holder. Every Additional Senior Note so made and delivered
                  upon exchange for the surrendered Additional Senior Note
                  shall be in the form of the Additional Senior Note,
                  appropriately modified to reflect the terms of such
                  Additional Note so delivered.

                           Prior to due presentment of any Additional Senior
                  Note for registration of transfer, the Company may deem and
                  treat the registered holder thereof as the absolute owner of
                  such Additional Senior Note for the purpose of receiving
                  payment of or on account of the principal of and premium, if
                  any, and interest on such Additional Senior Note, and for the
                  purpose of any notice, waiver or consent hereunder, and
                  payment of such Additional Senior Note shall be made only to
                  such holder or its designees.

                  (f)      Loss, Theft, Destruction or Mutilation of Additional
                  Senior Notes. Upon receipt of evidence reasonably
                  satisfactory to the Company of the loss, theft, destruction
                  or mutilation of any Additional Senior Note, and, in the case
                  of any such loss, theft or destruction, upon receipt of an
                  indemnity bond reasonably satisfactory to the Company or, in
                  the case of any such mutilation, upon surrender and
                  cancellation of such Additional Senior Note, the Company
                  will, at its expense, make and deliver, in lieu of such lost,
                  stolen, destroyed or mutilated Additional Senior Note, a new
                  Additional Senior Note of like tenor and unpaid principal
                  amount and dated the date of, or, if later, the date to which
                  interest has been paid on, the lost, stolen, destroyed or
                  mutilated Additional Senior Note.



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                  (g)      Additional Senior Notes held by Company, etc. Solely
                  for the purpose of determining whether the holders of the
                  requisite percentage of the aggregate principal amount of
                  Additional Senior Notes then outstanding approved or
                  consented to any amendment, waiver or consent to be given
                  under this Agreement or the Additional Senior Notes, or have
                  directed the taking of any action provided herein or in the
                  Additional Senior Notes to be taken upon the direction of the
                  holders of a specified percentage of the aggregate principal
                  amount of Additional Senior Notes then outstanding,
                  Additional Senior Notes directly or indirectly owned by the
                  Company or any of its Affiliated shall be deemed not to be
                  outstanding.

                  Q.       Article III of the Credit Agreement is hereby 
         amended by inserting a new Section 3.3 as follows:

                  3.3      Conditions Precedent to Additional Loans.

                           The obligation of each Lender to fund the Additional
         Loans is subject to the satisfaction or waiver, on or before such
         Additional Loan is made, of the following conditions precedent:

                           (a)      The Consent and Amendment No. 4 shall have
         become and continue to be effective in accordance with its terms.

                           (b)      The representations and warranties of the
         Parent and the Company contained in the Credit Agreement shall be true
         and correct as if given on the date of such Additional Loan.

                           (c)      No Default or Event of Default shall have
         occurred and be continuing either before or after giving effect to the
         making of such Additional Loan.

                           (d)      The Agent shall have received a Notice of
         Loan pursuant to Section 2.2.

                  Each borrowing of an Additional Loan shall be deemed to
         constitute a representation and warranty by the Parent and the Company
         on the date of such borrowing as to the matters specified in (b) and
         (c) of this Section 3.3.

                  R.       Article V is amended by inserting the following 
         Sections 5.17, 5.18, 5.19 and 5.20 and after Section 5.16:

                  5.17     Conversion Rights. (a)(i) At any time after 
         satisfaction of the provisions of Section 5.16(d), at the request of
         any Lender or Note Purchaser (the "Conversion Request") the Parent
         agrees that it will convert all or a portion of the Additional Loan
         (together with accrued interest) or the Additional Senior Note
         (together with accrued interest) into additional New Equity Securities
         (the "Converted New Equity



                                    - 11 -
<PAGE>   12

         Securities"), with the same terms, rights and privileges as the New
         Equity Securities sold to Persons as described in Section 5.16(d)
         ("New Equity Investors") and at a conversion rate determined by
         dividing the portion of the Additional Loan or Additional Senior Note
         to be converted by the price paid per New Equity Security by the New
         Equity Security investors. The Conversion Request shall specify the
         principal amount of the Additional Note or the Additional Senior Note
         to be exchanged pursuant to this Section 5.17, and if more than one
         class of securities has been issued, the specific class of securities
         into which the Additional Loan or Additional Senior Note shall be
         converted. Upon the exchange of outstanding Additional Notes or
         Additional Senior Notes for New Equity Securities which are
         convertible into shares of Common Stock of Parent, the Lenders shall
         receive warrants pursuant to the warrant agreement in the form
         attached hereto as Exhibit B to purchase the number of shares of
         Common Stock of the Parent equal to the number of shares of Common
         Stock of the Parent into which such New Equity Securities are
         convertible (including accrued dividends) for $.01 per share (the
         "Warrants"). Parent hereby agrees to negotiate in good faith the
         definitive terms of the Registration Rights Agreement and any other
         agreement related to the transactions contemplated by this Section
         5.17 on terms reasonably satisfactory to Parent, Agent and Lenders.
         Notwithstanding the foregoing provisions of Section 5.17(i), if the
         Additional Loans and Additional Senior Note and accrued interest are
         repaid in full with the proceeds of the issuance of New Equity and the
         Additional Loan Commitment is terminated prior to November 21, 1998,
         the Company's obligation to convert any portion of the Additional Loan
         or Additional Senior Note shall cease and be of no further effect,
         provided that if all or any portion of the Additional Loans and
         Additional Senior Note and accrued interest are repaid on or after
         November 21, 1998 (such amount so repaid (including accrued interest),
         the "Repayment Amount") then the Lenders and Note Purchasers shall
         have the right to purchase Converted Additional Equity Securities in
         an amount not in excess of the Repayment Amount upon the same terms as
         set forth above (including, without limitation, with Warrants and with
         registration rights) with respect to Additional Loans and Additional
         Senior Notes, as if such Additional Loans and Additional Senior Notes
         had not been so repaid. Notwithstanding anything to the contrary set
         forth herein, to the extent the Additional Loan or Additional Senior
         Notes are converted into Converted New Equity Securities or the
         Lenders or Note Purchasers purchase Converted New Equity Securities as
         set forth above, the Parent and the Company agree that the proceeds
         from any sale of all or a portion of the Parent or any of its
         Subsidiaries which are to be distributed to any holders of equity of
         Parent shall be first distributed to the Lenders in an amount equal to
         the outstanding aggregate principal amount of Converted New Equity
         Securities, together with a compounded rate of return of 12% per annum
         compounded semi-annually from the date of any conversion(s), prior to
         any distribution of such proceeds to any such holder of equity.

                  (ii)     Upon the issuance of Converted New Equity Securities
         under this Section 5.17 in exchange for the portion of the Additional
         Loan or Additional Senior Note so



                                    - 12 -
<PAGE>   13

         exchanged, the Company shall, upon request of the Initial Lender,
         issue a new Additional Note or Additional Senior Note to the Initial
         Lender corresponding to the aggregate principal amount of the
         Additional Loan or Additional Senior Note held by it in substitution
         for the Additional Note originally issued on or after the Second
         Closing Date.

                  (b)      If the New Equity Securities have not been issued by
         November 13, 1999, the Company covenants and agrees that upon the
         request of the Lenders specifying the aggregate amount of Additional
         Loans or Additional Senior Note to be exchanged, the Company will
         exchange all or a portion of the Additional Loans or Additional Senior
         Note, including accrued interest thereon, for such number of shares of
         Common Stock of WorldPort equal to the principal amount of Additional
         Loans plus accrued interest or Additional Senior Note plus accrued
         interest to be exchanged divided by $2.00. If, and as often as, there
         is any change in the Common Stock or the Preferred Stock by way of a
         stock split, stock dividend, combination or reclassification, or
         recapitalization, or by any other means, appropriate adjustment shall
         be made in the provisions hereof so that the rights and privileges
         granted hereby shall continue with respect to the Common Stock as so
         changed.

                  (c)      The Agent, Lenders and Note Purchaser will have the
         registration rights specified in the Registration Rights Term Sheet
         attached as Exhibit A hereto with respect to New Equity Securities
         issued pursuant to Section 5.17 hereof and the Common Stock issued
         pursuant to Section 5.17(b) hereof.

                  (d)      Each of the Lender's participants will be afforded
         the rights set forth in this Section 5.17.

                  Section 5.18.     Best Efforts of Insiders in Connection with
         Sale.

                  Upon the default by the Company in the due observance or
         performance of the covenants or agreements in Section 5.16(c) and
         5.16(d) of the Credit Agreement, the Parent and each of Paul A. Moore,
         Philip S. Magiera, Theodore H. Swindells and Maroon Bells Partners,
         Inc. (the "Insiders") shall be support and use their best efforts to
         achieve any transaction involving the sale of all or any part of the
         Parent's assets which is proposed by the Lenders. Notwithstanding the
         foregoing provisions of this Section 5.18 of the Credit Agreement, if
         the Additional Loans and Additional Senior Notes, together with
         accrued interest, are repaid in full with the proceeds of the issuance
         of New Equity and the Additional Loan Commitment is terminated prior
         to November 21, 1998, the obligations of the Insiders with respect to
         this Section 5.18 shall cease and be of no further effect.

                  Section 5.19.     Access to Records.

                  The Parent and the Company agree that they shall, and shall
         cause each of their Subsidiaries to, permit any representative, or
         consultant retained by, the Agent, the



                                    - 13 -
<PAGE>   14

         Collateral Agent or the Lenders to visit and inspect the properties
         and all financial records of the Parent, the Company and any of their
         respective Subsidiaries at reasonable times and as often as reasonably
         requested and to make extracts from and copies of such financial
         records, and to permit any representatives designated by, or
         consultants retained by, the Agent, the Collateral Agent or the
         Lenders to discuss at such reasonable times and at such intervals as
         may reasonably requested the affairs, finances and condition of the
         Parent, the Company or any of their respective Subsidiaries or any
         properties of the Parent, the Company or any of their respective
         Subsidiaries with the officers thereof and independent accountants
         therefor, in each case at the cost and expense of the Parent and the
         Company.

                  Section 5.20.     Legal Opinion.

                  By November 20, 1998, Parent shall deliver to the
         Administrative Agent a favorable opinion of DeBrauw Blackstone
         Westbroek, special Netherlands counsel to the Parent and the Company,
         in a form which shall be mutually agreed upon, but including,
         specifically, opinions stating that the Lien under the Dutch Security
         Documents secure the Additional Loans and Additional Senior Notes and
         that no consent of the Minority Shareholders is necessary in
         connection with the transactions contemplated hereby (including,
         without limitation, with respect to the distribution of proceeds of
         the Additional Loans to the Dutch Holding Company and EnerTel) or, if
         required, such consent has been obtained and is in full force and
         effect.

                  S.       The Credit Agreement is amended by adding a new
         Section 6.24 thereto immediately following Section 6.23, which new
         section shall read as follows:

         Section 6.24.     Proceeds of Additional Loans.

                  Notwithstanding anything to the contrary set forth in the
         Credit Agreement or any other Finance Document, (i) the Company agrees
         that it shall contribute at least 50% of the proceeds of the
         Additional Loans (after repayment of the October 30, 1998 Loan) to the
         Dutch Holding Company, and cause the Dutch Holding Company to promptly
         contribute such proceeds to EnerTel, and (ii) the Parent and the
         Company agree that they will not, and will ensure that none of their
         Subsidiaries will, distribute or disburse (whether by dividend,
         advance, loan, contribution or otherwise) any of the proceeds received
         in respect of the Additional Loans to the Parent or any of its
         Subsidiaries, provided that (A) the Company and the Dutch Holding
         Company may make the distributions contemplated by subclause (i) of
         this Section 6.24, (B) the proceeds of the Additional Loans may be
         distributed to EnerTel, and (C) provided no Default or Event of
         Default has occurred and is continuing or would result therefrom, an
         aggregate amount not in excess of 50% of the Additional Loans may be
         distributed to the Parent.

                   T.      Section 7.1(b) is restated as follows:



                                    - 14 -
<PAGE>   15

                           (b)      Breach of Certain Covenants. The Company
                  defaults in the due observance or performances of any
                  covenant, or condition or agreement in Section 2.15, 5.13(a),
                  5.15, 5.17, 5.18, 5.20 or in Article VI.

                  U.       Amendment to Section 9.3. Section 9.3 of the Credit
         Agreement is amended by adding a new subclause (h) thereto which shall
         read as follows: (h) Notwithstanding anything to the contrary set
         forth in this Agreement, any transferee of an Additional Senior Note,
         by its acceptance of an Additional Senior Note registered in its name
         (or the name of its nominee), or by its acceptance of a beneficial
         interest therein, shall be deemed to have made the representations set
         forth Paragraph 7 of Consent and Agreement No. 3 and to have agreed to
         be bound by the provisions of the Finance Documents. Any transferor of
         an Additional Senior Note or a beneficial interest therein shall
         notify any prospective purchaser that such transferor may be relying
         on the exemption from Section 5 of the Securities Act of 1933 (as
         amended) provided by Rule 144A.

         3.       The Company and the Parent hereby represent and warrant that
the representations and warranties set forth in Article IV of the Credit
Agreement and each other Finance Document are true and correct in all material
respects as of the date hereof as if made on such date.

         4.       Conditions to Effectiveness of Agreement.
         The effectiveness of this Agreement (such date of effectiveness, the
"Effective Date") and the obligation of each Lender to fund the Additional
Loans on or after the Second Closing Date (as defined in the Credit Agreement
as amended by this Agreement) is subject to the satisfaction or waiver of the
following conditions precedent: 

                  (a)      Finance Documents. The Administrative Agent shall
have received each of this Agreement, the Additional Note and the Additional
Enertel Guaranty, each duly executed by the Parent, the Company and such
Subsidiary, as applicable and the Lenders.

                  (b)      Notes. The Administrative Agent shall have received
an appropriately completed and duly executed Note payable to the order of each
Lender.

                  (c)      No Litigation or Other Proceeding. As of the 
Effective Date, (x) no action, suit, litigation, proceeding investigation,
inquiry or dispute by or before any court, Governmental Authority or any
arbitrator shall be pending against or affecting (i) the Parent, the Company or
any of their Subsidiaries or threatened against or affecting the Parent, the
Company or any of their Subsidiaries which could reasonably be expected to have
a Material Adverse Effect or (ii) the Finance Documents or any of the
transactions contemplated thereby and (y) there shall not have been any
Requirement of Law or injunction applicable to the Finance Documents or any of
the transactions contemplated thereby which have been enacted, promulgated,
entered or enforced by any Governmental Authority, nor shall there be pending
any action or proceeding before any such Governmental Authority which is
reasonably likely to transaction contemplated hereby, in each case, prohibit,
restrict, delay or otherwise materially affect the transactions contemplated
hereby. 



                                    - 15 -
<PAGE>   16

                  (d)      Officer's Certificate. The Administrative Agent
shall have received a certificate, dated the Effective Date and signed by a
Financial Officer of the Company, confirming compliance with the conditions
precedent set forth in paragraphs (h), and (i) of this Section 4 as of the
Effective Date. 

                  (e)      No Adverse Change or Development, Etc. (i) Nothing
shall have occurred since the Effective Date, the Lenders shall have become
aware of no facts or conditions not otherwise known to the Lenders on the
Effective Date, which could reasonably be expected to have a Material Adverse
Effect; (ii) trading in securities generally on the New York or American Stock
Exchange shall not have been suspended and minimum or maximum prices shall not
have been established on any such exchange; (iii) a banking moratorium shall
not have been declared by New York or United States authorities; (iv) there
shall not have been (A) an outbreak or escalation of hostilities between the
United States and any foreign power or (B) an outbreak or escalation of any
other insurrection or armed conflict involving the United States or any other
national or international calamity or emergency, or (C) any material change in
the financial markets of the United States which, in each case, in the
reasonable judgment of the Lenders would materially and adversely affect the
ability of the Lenders to syndicate the Additional Loan or makes it
impracticable or inadvisable to proceed with the Additional Loan or any of the
other transactions contemplated hereby.

                  (f)      Representations and Warranties. The representations
and warranties of the Loan Parties contained in any Finance Document shall be
true and correct on such date both before and after giving effect to the
effectiveness of the Agreement.

                  (g)      No Default or Event of Default. No Default or Event
of Default shall have occurred and be continuing either before or after giving
effect to the making of such Additional Loan on the Effective Date.

                  (h)      Legal Opinions. The Administrative Agent shall have
received a favorable opinion of McDermott, Will & Emery, special New York and
U.S. counsel to the Parent and the Company, in a form which shall be mutually
agreed upon.

                  (i)      Corporate Documents. The Administrative Agent shall
have received (i) a copy of the certificate or articles of incorporation or
articles of association, as applicable, including all amendments thereto (or
the equivalent thereof), of each Loan Party, certified as of a recent date by
the Secretary of State of the state of its organization, and a certificate as
to the good standing of the Parent and the Company as of a recent date, from
such Secretary of State or a certificate from an officer of such Loan Party to
the effect that no changes have been made to such organizational documents
since those delivered on the Closing Date; (ii) a certificate of the Secretary
or Assistant Secretary of each Loan Party dated the Closing Date and certifying
(A) that attached thereto is a true and complete copy of the by-laws of such
Loan Party as in effect on the Closing Date and at all times since a date prior
to the date of the resolutions described in clause (B) below or a certification
that there have been no changes since delivered on the Closing Date, (B) that
attached thereto is a true and complete copy of resolutions duly adopted by the
Board of Directors of such Loan Party authorizing the execution, delivery and
performance of the Finance Documents to which such Person is a party and, in
the case of the Company, the



                                    - 16 -
<PAGE>   17


borrowings hereunder, and that such resolutions have not been modified,
rescinded or amended and are in full force and effect, (C) that the certificate
or articles of incorporation of such Loan Party have not been amended since the
date of the last amendment thereto shown on the certificate of good standing
furnished pursuant to clause (i) above, and (D) as to the incumbency and
specimen signature of each officer executing any Finance Document or any other
document delivered in connection herewith on behalf of such Loan Party; (iii) a
certificate of another officer as to the incumbency and specimen signature of
the Secretary or Assistant Secretary executing the certificate pursuant to (ii)
above; and (iv) such other documents as the Lenders or the Administrative Agent
may reasonably request.

                  (j)      Guaranty. EnerTel shall have executed and delivered
a Guaranty in form and substance satisfactory to the Agent.

                  (k)      Agreement with Maroon Bells Partners and others. 
Each of Paul A. Moore, Philip S. Mageira, Theodore H. Swindells and Maroon Bell
Partners, Inc. shall have executed and delivered to the Agent, for the benefit
of the Lenders, an agreement covering the agreements set forth in Section 5.18
of the Credit Agreement (as amended hereby), which agreement shall be in form
and substance satisfactory to the Agent.

         5.       Amendments to Security Agreement.

                  Section 6.02 of the Security Agreement is amended by changing
the reference to paragraph SECOND to THIRD, inserting a new paragraph SECOND to
read as follows, and changing the current paragraph references "THIRD" and
"FOURTH" to "FOURTH" and "FIFTH", respectively:

                           "SECOND, to the payment in full of the Obligations
                  owed to the Lenders in respect of the Additional Loan made by
                  them and outstanding (together with all accrued interest and
                  capitalized interest in respect thereof) and to the Note
                  Purchaser in respect of the Additional Senior Note held by it
                  and outstanding (together with all accrued interest and
                  capitalized interest in respect thereof), in each case pro
                  rata as among the Lenders and Note Purchaser, in accordance
                  with the amount of such Obligations owed to them."

         6.       Amendment to the Pledge Agreement. Section 13 of the Pledge
Agreement is amended by changing the reference to paragraph SECOND to THIRD,
inserting a new paragraph SECOND to read as follows, and changing the current
paragraph reference "THIRD" and "FOURTH" to "FOURTH" and "FIFTH", respectively:

                           "SECOND, to the payment in full of the Secured
                  Obligations owed to the Lenders in respect of the Additional
                  Loan (including all accrued interest and capitalized interest
                  in respect thereof) made by them and outstanding and owed to
                  the Note Purchaser in respect of the Additional Senior Note
                  (including all accrued interest and capitalized interest in
                  respect thereof) held it



                                    - 17 -
<PAGE>   18

                  and outstanding, in each case pro rata as among the Lenders
                  and Note Purchasers in accordance with the amount of such
                  Obligations owed to them."

         7.       Representations Of The Note Purchaser.

                  (a)      Purchase for Investment. The Note Purchaser, 
represents that it has received all information necessary to make its
investment decision with respect to its purchase of the Additional Senior Note
and as it may have otherwise requested and that it is purchasing the Additional
Senior Note for its own account or for one or more separate accounts maintained
by it or for the account of one or more pension or trust funds and not with a
view to the distribution thereof except in accordance with the Securities Act,
provided that the disposition of such Note Purchaser's property shall at all
times be within its control. The Note Purchaser understands that the Additional
Senior Notes have not been registered under the Securities Act and may be
resold only if registered pursuant to the provisions of the Securities Act or
if an exemption from registration is available, except under circumstances
where neither such registration nor such an exemption is required by law, and
that the Company is not required to register the Senior Note under the
Securities Act. The Note Purchaser represents that it is not an "affiliate" (as
defined in Rule 144 under the Securities Act) of the Company, it is not acting
on behalf of the Company and it is a "Qualified Institutional Buyer" within the
meaning of Rule 144A promulgated under the Securities Act or an institutional
"Accredited Investor" within the meaning of Rule 501(a)(1), (2), (3) or (7)
promulgated under the Securities Act. Such acquisition will be for its own
account or for the account of another Qualified Institutional Buyer.

                  (b)      Source of Funds. The Note Purchaser represents that
at least one of the following statements is an accurate representation as to
each source of funds (a "Source") to be used by it to pay the purchase price of
the Additional Senior Notes to be purchased by it:

                           (i)      if such Note Purchaser is an insurance
company, the Source does not include Plan assets allocated to any separate
account maintained by such Note Purchaser in which any employee benefit plan
(or its related trust) has any interest, other than a separate account that is
maintained solely in connection with such Note Purchaser's fixed contractual
obligations under which the amounts payable, or credited, to such plan and to
any participant or beneficiary of such plan (including any annuitant) are not
affected in any manner by the investment performance of the separate account;
or

                           (ii)     the Source is either (A) an insurance 
company pooled separate account, within the meaning of Prohibited Transaction
Exemption ("PTE") 90-1 (issued January 29, 1990), or (B) a bank collective
investment fund, within the meaning of the PTE 91-38 (issued July 12, 1991)
and, except as such Note Purchaser has disclosed to the Company in writing
pursuant to this paragraph (b), no employee benefit plan or group of plans
maintained by the same employer or employee organization beneficially owns more
than 10% of all assets allocated to such pooled separate account or collective
investment fund; or

                           (iii)    the Source constitutes assets of an
"investment fund" (within the meaning of Part V of the QPAM Exemption) managed
by a "qualified professional asset



                                    - 18 -
<PAGE>   19

manager" or "QPAM" (within the meaning of Part V of the QPAM Exemption), no
employee benefit plan's assets that are included in such investment fund, when
combined with the assets of all other employee benefit plans established or
maintained by the same employer or by an affiliate (within the meaning of
Section V(c)(1) of the QPAM Exemption) of such employer or by the same employee
organization and managed by such QPAM, exceed 20% of the total client assets
managed by such QPAM, the conditions of Part 1(c) and (g) of the QPAM Exemption
are satisfied, neither the QPAM nor a person controlling or controlled by the
QPAM, (applying the definition of "control" in Section V(e) of the QPAM
Exemption) owns a 5% or more interest in the Company and (i) the identity of
such QPAM and (ii) the names of all employee benefit plans whose assets are
included in such investment fund have been disclosed to the Company in writing
pursuant to this paragraph (iii); or

                           (iv)     the Source is a governmental plan; or

                           (v)      the Source is one or more employee benefit
plans, or a separate account or trust fund comprised of one or more employee
benefit plans, each of which has been identified to the Company in writing
pursuant to this paragraph (v); or

                           (vi)     the Source does not include Plan assets of
any employee benefit plan, other than exempt from the coverage of ERISA.

                           The Note Purchaser further (A) confirms to the
Initial Lender that it has received a copy of the Credit Agreement and each of
the other Finance Documents, which have in each case been requested by it,
together with copies of any financial statements requested by it, and that it
has, independently and without reliance on the Initial Lender, the
Administrative Agent, the Collateral Agent or any other Lender and based on
such documents and information as it has deemed appropriate, made its own
credit analysis and decision to enter into this Agreement and become a Note
Purchaser; (B) agrees that it will, independently and without reliance upon the
Initial Lender, the Administrative Agent, the Collateral Agent or any other
Lender and based on such documents and information as it shall deem appropriate
at the time, continue to make its own credit decisions in taking or not taking
action under the Credit Agreement and any other Finance Documents; and (C)
appoints the Collateral Agent to act in the capacity set forth in the Credit
Agreement.

         As used in this Section 7, the terms "employee benefit plan",
"governmental plan", "party in interest" and "separate account" shall have the
respective meanings assigned to such terms in Section 3 of ERISA.

         8.       Confirmation of Guarantees, Security Documents. Each of the
Parent and Company and each of the other Loan Parties hereto hereby
acknowledges, ratifies and confirms that, (a) pursuant to the Parent Guaranty
and the Subsidiary Guaranty to which it is a party, such Loan Party guarantees
all obligations of the Borrower under the Additional Loans, Additional Note and
the Additional Senior Note (such obligations being hereinafter referred to as
the "Guaranteed Obligations"), (b) each of the Guaranteed Obligations shall
constitute Guaranteed Obligations under and as defined in each Guaranty, (c)
each of the Guarantees and Security



                                    - 19 -
<PAGE>   20

Documents to which it is a party is and shall continue to be in full force and
effect in accordance with its terms and the Liens granted thereunder shall
secure and shall continue to secure the Obligations and the Secured Obligations
(as such terms may be defined in the Security Documents) including, the
Guaranteed Obligations; and (d) the Liens granted to the Collateral Agent for
its benefit and the benefit of the Lenders pursuant to the Security Documents
to which it is a party are and shall continue to be, valid and perfected Liens
in the Collateral covered thereby and the Obligations and Secured Obligations
as defined in the Security Documents shall be deemed to include the Additional
Note, the Additional Senior Note and the Additional Loans, together with all
accrued interest thereon and all other obligations and each of the Company, the
Parent and each other Loan Party hereby confirms and regrants a Lien on all of
the Collateral under each Security Document to which such Grantor is a party to
Bankers Trust Company, as collateral agent, as security for the full payment of
the Secured Obligations (as defined in each such Security Document), the
Additional Loans, the Additional Notes and the Additional Senior Note, together
with all accrued interest therein and other obligations hereunder.

         9.       Applicable Law; Submission to Jurisdiction. THIS AGREEMENT
SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF
NEW YORK.

         10.      No Novation. This Agreement shall not extinguish the 
obligations for the payment of money outstanding under the Credit Agreement or
any Note or discharge or release the Lien or priority of any security
agreement, any pledge agreement or any other security therefor or discharge any
obligation under any guaranty. Nothing herein contained shall be construed as a
substitution or novation of the Obligations outstanding under the Credit
Agreement or instruments securing the same, which shall remain in full force
and effect, except as modified hereby or by instruments executed concurrently
herewith. Nothing expressed or implied in this Agreement, the Credit Agreement,
or any other document contemplated hereby or thereby shall be construed as a
release or other discharge of the Company, the Parent or any Guarantor under
the Credit Agreement or any Pledgor or Grantor under any Security Document from
any of its obligations and liabilities as a "Company", "Parent", "Guarantor",
"Pledgor" or "Grantor" under the Credit Agreement or the Security Documents or
any other Finance Document. Whenever the term "Credit Agreement" is used in any
of the Finance Documents it shall mean and refer to the Credit Agreement as
modified pursuant hereto. Each of the Credit Agreement and the other Finance
Documents shall remain in full force and effect, except as expressly modified
hereby.

         11.      Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall constitute an original but all of which when
taken together shall constitute but one contract.

         12.      Headings. The headings of this Agreement are for convenience
of reference only, are not part of this Agreement and are not to affect the
construction of, or to be taken into consideration in interpreting, this
Agreement.

         13.      Effectiveness. This Agreement shall become effective as of
the date (the "Effective Date") when copies hereof which, when taken together,
bear the signatures of each of



                                    - 20 -
<PAGE>   21

the Company, the Parent, the Agent, the Collateral Agent, the Majority Lenders
and the other Loan Parties which are a party hereto have been received by the
Agent.

         14.      Payment of Expenses. In furtherance of the provisions of
Section 9.1 of the Credit Agreement, the Parent and Company shall jointly and
severally, whether or not the transactions hereby contemplated are consummated,
upon demand of the Agent pay all reasonable out-of-pocket costs (including
legal fees), charges and expenses of the Agent and Collateral Agent in
connection with the negotiation, preparation, execution and delivery of this
Agreement (including, without limit, all such out-of-pocket cost (including
legal fees), charges and expenses in connection with and relating to each
Finance Document) and the documents and instruments referred to herein, and
otherwise reviewed in connection herewith and therewith.



                                    - 21 -
<PAGE>   22

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed by their duly authorized officers, all as of the date and year
first above written.

                                   WORLDPORT INTERNATIONAL, INC.



                                   by
                                      -----------------------------------------
                                      Name:
                                      Title:


                                   WORLDPORT COMMUNICATIONS, INC.



                                   by 
                                      -----------------------------------------
                                      Name:
                                      Title:


                                   TELENATIONAL COMMUNICATIONS, INC.



                                   by
                                      -----------------------------------------
                                      Name:
                                      Title:


                                   IIC ACQUISITION CORP.



                                   by
                                      -----------------------------------------
                                      Name:
                                      Title:


                                   WORLDPORT/ICX, INC.



                                   by
                                      -----------------------------------------
                                      Name:
                                      Title:
<PAGE>   23

                                   WORLDPORT ACQUISITIONS, INC.



                                   by
                                      -----------------------------------------
                                      Name:
                                      Title:


                                   WORLDPORT ACQUISITION CORP.



                                   by
                                      -----------------------------------------
                                      Name:
                                      Title:


                                   WORLDPORT COMMUNICATIONS
                                    (EUROPE) HOLDING B.V.



                                   by:
                                      -----------------------------------------
                                      Name:
                                      Title:


                                   WORLDPORT COMMUNICATIONS
                                    EUROPE B.V.



                                   by:
                                      -----------------------------------------
                                      Name:
                                      Title:


                                   ENERTEL N.V.



                                   by:
                                      -----------------------------------------
                                      Name:
                                      Title:
<PAGE>   24

                                   BANKERS TRUST COMPANY

                                   as Agent and Collateral Agent



                                   by
                                      -----------------------------------------
                                      Name:
                                      Title:


                                   BANKERS TRUST CORPORATION

                                   as Lender



                                   by
                                      -----------------------------------------
                                      Name:
                                      Title:


                                   DREYFUS PREMIER LIMITED TERM HIGH 
                                   INCOME FUND



                                   by
                                      -----------------------------------------
                                      Name:
                                      Title:
<PAGE>   25

                                   SCHEDULE I


                          Additional Loan Commitments


Bankers Trust Corporation                 $4,500,000