Document:

<PAGE>

                                                                  EXECUTION COPY

EXHIBIT 10.28

                                     ALLONGE

         That certain Promissory Note (the "Note") in the maximum principal
amount of $90,000,000.00 issued by TELECOMUNICACIONES DE PUERTO RICO, INC.
("Borrower"), a corporation organized under the laws of the Commonwealth of
Puerto Rico to the order of BANCO POPULAR DE PUERTO RICO on May 16, 2002, which
as of the date hereof the outstanding principal balance thereon is
$40,000,000.00, and accrued interest thereon is $28,666.67, is hereby amended
and modified as of the date hereof, as follows:

The first paragraph of the Note is hereby amended to read in its entirety as
follows:

         "FOR VALUE RECEIVED, the undersigned, TELECOMUNICACIONES DE PUERTO
         RICO, INC., a Puerto Rico corporation (the "Borrower"), HEREBY PROMISES
         TO PAY to the order of BANCO POPULAR DE PUERTO RICO (the "Lender") for
         the account of its Applicable Lending Office on the Termination Date
         (each as defined in the Credit Agreement referred to below) the
         principal sum of U.S. $50,000,000.00 or, if less, the aggregate amount
         of the Revolving Credit Advances made by the Lender to the Borrower
         pursuant to the Revolving Credit Agreement dated as of May 16, 2002
         among the Borrower, Puerto Rico Telephone Company, Inc., as Guarantor,
         the Lender and certain other lenders parties thereto, and Banco Popular
         de Puerto Rico ("BPPR"), as administrative agent (in such capacity, the
         "Administrative Agent") for the Lender and such other lenders (as
         amended or modified from time to time, the "Credit Agreement"; the
         terms defined therein being used herein as therein defined),
         outstanding on the Termination Date."

All other terms of the Note shall continue in full force and effect.

It is hereby understood and agreed by each of the parties hereto that this
Allonge is not intended to cause an extinctive novation of the terms and
conditions of, and the obligations under, the Credit Agreement and the Note, but
is exclusively intended to reflect the reduction in the Commitment from
$90,000,000.00 to $50,000,000.00, and shall not affect any of the obligations of
Borrower under the Credit Agreement or under the Note (as amended hereby), all
of which obligations shall continue in full force and effect as if originally
incurred by Borrower as herein set forth. Capitalized terms not otherwise
defined herein shall have the meanings given to such terms in the Note.

                  [Remainder of Page Intentionally Left Blank]

<PAGE>

                                                                  EXECUTION COPY

Executed in San Juan, Puerto Rico, on December 31, 2002.

                                    TELECOMUNICACIONES DE PUERTO RICO, INC.,
                                    as Borrower

                                    By:  ____________________________
                                         Maria Elena de la Cruz
                                         Treasurer

                                    BANCO POPULAR DE PUERTO RICO,
                                    as Lender

                                    By:  ____________________________
                                         Jorge Aldarondo
                                         Vice President

                                    BANCO POPULAR DE PUERTO RICO,
                                    as Administrative Agent

                                    By:  ____________________________
                                         Jorge Aldarondo
                                         Vice President

ACKNOWLEDGED:

PUERTO RICO TELEPHONE COMPANY, INC., as Guarantor

By:  ____________________________
     Maria Elena de la Cruz
     Treasurer

Affidavit No. ____

Subscribed before me in San Juan, Puerto Rico, on December 31, 2002, by the
following persons, who I personally know: (i) Maria Elena de la Cruz, of legal
age, ____________________, a business person, and a resident of
______________________, Puerto Rico, in her capacity as Treasurer of
Telecomunicaciones de Puerto Rico, Inc., and of Puerto Rico Telephone Company;
and (ii) Jorge Aldarondo, of legal age, married, a banker, and a resident of San
Juan, Puerto Rico, in his capacity as Vice President of Banco Popular de Puerto
Rico.

                                        ________________________________
                                                 Notary Public

<PAGE>

                                                                  EXECUTION COPY

                                 PROMISSORY NOTE

$50,000,000.00                                          Dated: December 31, 2002

         FOR VALUE RECEIVED, the undersigned, TELECOMUNICACIONES DE PUERTO RICO,
INC., a Puerto Rico corporation (the "Borrower"), HEREBY PROMISES TO PAY to the
order of BANCO POPULAR DE PUERTO RICO (the "Lender") for the account of its
Applicable Lending Office on the Termination Date (each as defined in the Credit
Agreement referred to below) the principal sum of U.S. $ 50,000,000.00 or, if
less, the aggregate amount of the Revolving Credit Advances made by the Lender
to the Borrower pursuant to the Revolving Credit Agreement dated as of May 16,
2002 among the Borrower, Puerto Rico Telephone Company, Inc., as Guarantor, the
Lender and certain other lenders parties thereto, and Banco Popular de Puerto
Rico ("BPPR"), as administrative agent (in such capacity, the "Administrative
Agent") for the Lender and such other lenders (as amended or modified from time
to time, the "Credit Agreement"; the terms defined therein being used herein as
therein defined), outstanding on the Termination Date.

         The Borrower promises to pay interest on the unpaid principal amount of
each Revolving Credit Advance from the date of such Advance until such principal
amount is paid in full, at such interest rates, and payable at such times, as
are specified in the Credit Agreement.

         Both principal and interest are payable in lawful money of the United
States of America to BPPR as Administrative Agent, at 209 Munoz Rivera Avenue,
Hato Rey, Puerto Rico in same day funds. Each Revolving Credit Advance owing to
the Lender by the Borrower pursuant to the Credit Agreement, and all payments
made on account of principal thereof, shall be recorded by the Lender and, prior
to any transfer hereof, endorsed on the grid attached hereto which is part of
this Promissory Note.

         This Promissory Note is one of the Revolving Credit Notes referred to
in, and is entitled to the benefits of, the Credit Agreement. The Credit
Agreement, among other things: (i) provides for the making of Revolving Credit
Advances by the Lender to the Borrower from time to time in an aggregate amount
not to exceed at any time outstanding the U.S. dollar amount first above
mentioned, the indebtedness of the Borrower resulting from each such Revolving
Credit Advance being evidenced by this Promissory Note; and (ii) contains
provisions for acceleration of the maturity hereof upon the happening of certain
stated events and also for prepayments on account of principal hereof prior to
the maturity hereof upon the terms and conditions therein specified.

         TELECOMUNICACIONES DE PUERTO RICO, INC.

         By:    ______________________________

         Name:  Maria E. de la Cruz
         Title: Treasurer<PAGE>

                                                                  EXECUTION COPY

EXHIBIT 10.29

                            ASSIGNMENT AND ACCEPTANCE

         Reference is made to the $50,000,000 Term Credit Agreement, dated as of
June 24, 2002, as amended or modified from time to time (the "Credit
Agreement"), among Telecomunicaciones de Puerto Rico, Inc. as borrower (the
"Borrower"), Puerto Rico Telephone Company, Inc. as guarantor (the "Guarantor"),
the Lenders and Arranger named therein, and Australia and New Zealand Banking
Group Limited as administrative agent for the Lenders (in such capacity, the
"Agent"). Terms defined in the Credit Agreement are used herein with the same
meaning. This Assignment and Acceptance, among the Agent, the Assignor, the
Assignee, the Borrower, and the Guarantor (each as identified on Schedule 1
hereto) is dated as of the Effective Date (as specified on Schedule 1 hereto,
the "Effective Date").

         The Assignor hereby irrevocably sells and assigns to the Assignee
without recourse to the Assignor, and the Assignee hereby irrevocably purchases
and assumes from the Assignor without recourse to the Assignor, as of the
Effective Date, the interest described on Schedule 1 (the "Assigned Interest").

         The Assignor: (1) makes no representation or warranty and assumes no
responsibility with respect to any statements, warranties or representations
made in or in connection with the Credit Agreement or the execution, legality,
validity, enforceability, genuineness, sufficiency or value of the Credit
Agreement or any other instrument or document furnished pursuant thereto, other
than that it has not created any adverse claim upon the interest being assigned
by it hereunder and that such interest is free and clear of any adverse claim;
(2) makes no representation or warranty and assumes no responsibility with
respect to the financial condition of any of the Borrower or the Guarantor or
the performance or observance by any of the Borrower or the Guarantor of any of
its respective obligations under the Credit Agreement or any other instrument or
document furnished pursuant hereto or thereto; and (3) attaches the Note(s) held
by it evidencing the Assigned Interest and requests that the Agent exchange such
Note(s) for a new Note or Notes in the form of Notes payable to the Assignor (if
the Assignor has retained any interest in the Assigned Interest) and a new Note
or Notes in the form of Notes payable to the Assignee in the respective amounts
which reflect the assignment being made hereby (and after giving effect to any
other assignments which have become effective on the Effective Date).

         The Assignee: (1) represents and warrants that it is legally authorized
to enter into this Assignment and Acceptance; (2) confirms that it has received
a copy of the Credit Agreement, together with copies of the financial statements
delivered pursuant to Section 4.01(e) thereof and such other documents and
information as it has deemed appropriate to make its own credit analysis and
decision to enter into this Assignment and Acceptance; (3) agrees that it will,
independently and without reliance upon the Assignor, the Agent or any other
person which has become a Lender and based on such documents and information as
it

<PAGE>

                                                                  EXECUTION COPY

shall deem appropriate at the time, continue to make its own credit decisions in
taking or not taking action under the Credit Agreement or any of the Notes; (4)
appoints and authorizes the Agent to take such action as agent on its behalf and
to exercise such powers under the Credit Agreement as are delegated to the Agent
by the terms thereof, together with such powers as are incidental thereto; (5)
agrees that it will be bound by the provisions of the Credit Agreement and will
perform in accordance with its terms all the obligations which by the terms of
the Credit Agreement are required to be performed by it as a Lender; and (6)
represents and warrants that the Borrower is not an "affiliate" of the Assignee
for purposes of Sections 23A and 23B of the Federal Reserve Act (12 U.S.C.
Sections 371c and 371c-1).

         Following the execution of this Assignment and Acceptance, it will be
delivered to the Agent for acceptance by it and recording by the Agent,
effective as of the Effective Date (which shall not, unless otherwise agreed to
by the Agent, be earlier than five Business Days after the date of acceptance
and recording by the Agent of the executed Assignment and Acceptance).

         Upon such acceptance and recording, from and after the Effective Date,
the Agent shall make all payments in respect of the Assigned Interest (including
payments of principal, interest, fees and other amounts) to the Assignee,
whether such amounts have accrued prior to the Effective Date or accrue
subsequent to the Effective Date. The Assignor and the Assignee shall make all
appropriate adjustments in payments by the Agent for periods prior to the
Effective Date or with respect to the making of this Assignment directly between
themselves. From and after the Effective Date: (1) the Assignee shall be a party
to the Credit Agreement and, to the extent provided in this Assignment and
Acceptance, have the rights and obligations of a Lender thereunder and under the
Notes and shall be bound by the provisions thereof, and (2) the Assignor shall,
to the extent provided in this Agreement and Acceptance, relinquish its rights
and be released from its obligations under the Credit Agreement.

         The parties hereto: (1) acknowledge that the parent company of Assignee
holds an interest in the stock of the Borrower; and (2) agree that for the
purposes of this Assignment and Acceptance, the Assignee shall be an "Eligible
Assignee" notwithstanding the proviso contained in the last sentence of the
definition of "Eligible Assignee" in Section 1.01 of the Credit Agreement.

         This Assignment and Acceptance shall be governed by and construed in
accordance with the laws of the State of New York.

In Witness Whereof, the parties hereto have caused this Assignment and
Acceptance to be executed on Schedule 1 hereto by their respective duly
authorized officers.

[Remainder of Page Intentionally Left Blank]

<PAGE>

                                                                  EXECUTION COPY

Schedule 1
To Assignment and Acceptance relating to the $50,000,000 Credit Agreement, dated
as of June 24, 2002, among TELECOMUNICACIONES DE PUERTO RICO, INC., the Lenders
and Arranger named therein, and AUSTRALIA AND NEW ZEALAND BANKING GROUP LIMITED
as administrative agent for the Lenders (in such capacity, the "Agent")

Name of Assignor:                             Australia and New Zealand Banking
                                              Group Limited

Name of Assignee:                             Banco Popular de Puerto Rico

Effective Date of Assignment:                 December 31, 2002

Principal Amount Assigned:                    $20,000,000.00

Assignee:                                     Assignor:
Banco Popular de Puerto Rico                  Australia and New Zealand Banking
                                              Group Limited

By: __________________________                By: ____________________________
Name: Jorge Aldarondo                         Name:
Title: Vice President                         Title:
Lending Office details:
Banco Popular de Puerto Rico
Corporate Banking Division - 712
209 Munoz Rivera Ave., 6th Floor
Hato Rey, Puerto Rico 00919
Attention:
Manager - Corporate Banking   Division
        Telecopier No. : (787) 754-9112
AUSTRALIA AND NEW ZEALAND BANKING GROUP       TELECOMUNICACIONES DE
LIMITED,  as Agent                            PUERTO RICO, INC., as Borrower

By: _______________________                   By: _________________________
    Name:                                         Name: Maria Elena de la Cruz
    Title:                                        Title: Treasurer

                                              PUERTO RICO TELEPHONE COMPANY,
                                              as Guarantor

                                              By: _________________________
                                                  Name: Maria Elena de la Cruz
                                                  Title: Treasurer

<PAGE>

                                                                  EXECUTION COPY

                                 PROMISSORY NOTE

$30,000,000.00                                          Dated: December 31, 2002

         FOR VALUE RECEIVED, the undersigned, TELECOMUNICACIONES DE PUERTO RICO,
INC., a Puerto Rico corporation (the "Borrower"), HEREBY PROMISES TO PAY to the
order of AUSTRALIA AND NEW ZEALAND BANKING GROUP LIMITED ("ANZ"), as lender (in
such capacity, the "Lender") for the account of its Lending Office on the
Termination Date (each as defined in the Credit Agreement referred to below) the
principal sum of U.S. $30,000,000.00 or, if less, the aggregate amount of the
Term Credit Advances made by the Lender to the Borrower pursuant to the Term
Credit Agreement dated as of June 24, 2002 among the Borrower, Puerto Rico
Telephone Company, Inc., as Guarantor, the Lender and certain other lenders
parties thereto, and ANZ, as administrative agent (in such capacity, the
"Administrative Agent") for the Lender and such other lenders (as amended or
modified from time to time, the "Credit Agreement"; the terms defined therein
being used herein as therein defined), outstanding on the Termination Date.

         The Borrower promises to pay interest on the unpaid principal amount of
each Term Credit Advance from the date of such Advance until such principal
amount is paid in full, at such interest rates, and payable at such times, as
are specified in the Credit Agreement.

         Both principal and interest are payable in lawful money of the United
States of America to ANZ as Administrative Agent, at JP Morgan Chase Bank, New
York, ABA No. 021-000-021, Account No. 400-928884, in same day funds. Each Term
Credit Advance owing to the Lender by the Borrower pursuant to the Credit
Agreement, and all payments made on account of principal thereof, shall be
recorded by the Lender and, prior to any transfer hereof, endorsed on the grid
attached hereto which is part of this Promissory Note.

         This Promissory Note is one of the Term Credit Notes referred to in,
and is entitled to the benefits of, the Credit Agreement. The Credit Agreement,
among other things, (i) provides for the making of Term Credit Advances by the
Lender to the Borrower in an aggregate amount not to exceed at any time
outstanding the U.S. dollar amount first above mentioned, the indebtedness of
the Borrower resulting from each such Term Credit Advance being evidenced by
this Promissory Note and (ii) contains provisions for acceleration of the
maturity hereof upon the happening of certain stated events and also for
prepayments on account of principal hereof prior to the maturity hereof upon the
terms and conditions therein specified.

TELECOMUNICACIONES DE PUERTO RICO, INC.
By:
  _________________________
Name: Maria E. de la Cruz
Title: Treasurer

                                 PROMISSORY NOTE

<PAGE>

                                                                  EXECUTION COPY

$20,000,000.00                                          Dated: December 31, 2002

         FOR VALUE RECEIVED, the undersigned, TELECOMUNICACIONES DE PUERTO RICO,
INC., a Puerto Rico corporation (the "Borrower"), HEREBY PROMISES TO PAY to the
order of BANCO POPULAR DE PUERTO RICO, as lender (the "Lender") for the account
of its Lending Office on the Termination Date (each as defined in the Credit
Agreement referred to below) the principal sum of U.S. $20,000,000.00 or, if
less, the aggregate amount of the Term Credit Advances made by the Lender to the
Borrower pursuant to the Term Credit Agreement dated as of June 24, 2002 among
the Borrower, Puerto Rico Telephone Company, Inc., as Guarantor, Australia and
New Zealand Banking Group Limited ("ANZ") and certain other lenders parties
thereto, and ANZ, as administrative agent (in such capacity, the "Administrative
Agent") for the Lender and such other lenders (as amended or modified from time
to time, the "Credit Agreement"; the terms defined therein being used herein as
therein defined), outstanding on the Termination Date.

         The Borrower promises to pay interest on the unpaid principal amount of
each Term Credit Advance from the date of such Advance until such principal
amount is paid in full, at such interest rates, and payable at such times, as
are specified in the Credit Agreement.

         Both principal and interest are payable in lawful money of the United
States of America to ANZ as Administrative Agent, at JP Morgan Chase Bank, New
York, ABA No. 021-000-021, Account No. 400-928884, in same day funds. Each Term
Credit Advance owing to the Lender by the Borrower pursuant to the Credit
Agreement, and all payments made on account of principal thereof, shall be
recorded by the Lender and, prior to any transfer hereof, endorsed on the grid
attached hereto which is part of this Promissory Note.

         This Promissory Note is one of the Term Credit Notes referred to in,
and is entitled to the benefits of, the Credit Agreement. The Credit Agreement,
among other things, (i) provides for the making of Term Credit Advances by the
Lender to the Borrower in an aggregate amount not to exceed at any time
outstanding the U.S. dollar amount first above mentioned, the indebtedness of
the Borrower resulting from each such Term Credit Advance being evidenced by
this Promissory Note and (ii) contains provisions for acceleration of the
maturity hereof upon the happening of certain stated events and also for
prepayments on account of principal hereof prior to the maturity hereof upon the
terms and conditions therein specified.

TELECOMUNICACIONES DE PUERTO RICO, INC.
By:
    ______________________
Name: Maria E. de la Cruz
Title: Treasurer

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00048-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00048-of-00352.parquet"}]]