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                                                                    EXHIBIT 10.3

                          REVOLVING LINE OF CREDIT NOTE

$3,000,000.00                                                Ontario, California
                                                                    June 1, 2004

         FOR VALUE RECEIVED, the undersigned XET CORPORATION and CXR TELCOM
CORPORATION ("Borrower") promises to pay to the order of WELLS FARGO BANK,
NATIONAL ASSOCIATION ("Bank") at its office at Inland Empire RCBO, 4141 Inland
Empire Blvd., Ontario, California, or at such other place as the holder hereof
may designate, in lawful money of the United States of America and in
immediately available funds, the principal sum of Three Million Dollars
($3,000,000.00), or so much thereof as may be advanced and be outstanding, with
interest thereon, to be computed on each advance from the date of its
disbursement as set forth herein.


INTEREST:

         (a) INTEREST. The outstanding principal balance of this Note shall bear
interest (computed on the basis of a 360-day year, actual days elapsed) at a
rate per annum one half percent (0.50%) above the Prime Rate in effect from time
to time. The "Prime Rate" is a base rate that Bank from time to time establishes
and which serves as the basis upon which effective rates of interest are
calculated for those loans making reference thereto. Each change in the rate of
interest hereunder shall become effective on the date each Prime Rate change is
announced within Bank.

         (b) PAYMENT OF INTEREST. Interest accrued on this Note shall be payable
on the first day of each month, commencing July 1, 2004.

         (c) DEFAULT INTEREST. From and after the Maturity Date of this Note (as
defined below), or such earlier date as all principal owing hereunder becomes
due and payable by acceleration or otherwise, the outstanding principal balance
of this Note shall bear interest until paid in full at an increased rate per
annum (computed on the basis of a 360-day year, actual days elapsed) equal to
four percent (4%) above the rate of interest from time to time applicable to
this Note.

BORROWING AND REPAYMENT:

         (a) BORROWING AND REPAYMENT. Borrower may from time to time during the
term of this Note borrow, partially or wholly repay its outstanding borrowings,
and reborrow, subject to all of the limitations, terms and conditions of this
Note and of any document executed in connection with or governing this Note;
provided however, that the total outstanding borrowings under this Note shall
not at any time exceed the principal amount stated above. The unpaid principal
balance of this obligation at any time shall be the total amounts advanced
hereunder by the holder hereof less the amount of principal payments made hereon
by or for any Borrower, which balance may be endorsed hereon from time to time
by the holder. The outstanding principal balance of this Note shall be due and
payable in full on June 1, 2005 (the "Maturity Date").

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         (b) ADVANCES. Advances hereunder, to the total amount of the principal
sum stated above, may be made by the holder at the oral or written request of
(i) Randolph Foote or Carmine Oliva or Sid Sananikone, any one acting alone, who
are authorized to request advances and direct the disposition of any advances
until written notice of the revocation of such authority is received by the
holder at the office designated above, or (ii) any person, with respect to
advances deposited to the credit of any deposit account of any Borrower, which
advances, when so deposited, shall be conclusively presumed to have been made to
or for the benefit of each Borrower regardless of the fact that persons other
than those authorized to request advances may have authority to draw against
such account. The holder shall have no obligation to determine whether any
person requesting an advance is or has been authorized by any Borrower.

         (c) APPLICATION OF PAYMENTS. Each payment made on this Note shall be
credited first, to any interest then due and second, to the outstanding
principal balance hereof.

EARLY TERMINATION OF COMMITMENT FEE:

         In the event that Borrower requests termination of the commitment
hereunder at any time prior to the Maturity Date, Borrower shall pay to Bank a
non-refundable termination fee equal to Thirty Thousand Dollars ($30,000.00),
which shall be due and payable in full prior to termination of the commitment by
Bank.

EVENTS OF DEFAULT:

         The occurrence of any of the following shall constitute an "Event of
Default' under this Note:

         (a) The failure to pay any principal, interest, fees or other charges
when due hereunder or under any contract, instrument or document executed in
connection with this Note.

         (b) The filing of a petition by or against any Borrower, any guarantor
of this Note or any general partner or joint venturer in any Borrower which is a
partnership or a joint venture (with each such guarantor, general partner and/or
joint venturer referred to herein as a "Third Party Obligor") under any
provisions of the Bankruptcy Reform Act, Title 11 of the United States Code, as
amended or recodified from time to time, or under any similar or other law
relating to bankruptcy, insolvency, reorganization or other relief for debtors;
the appointment of a receiver, trustee, custodian or liquidator of or for any
part of the assets or property of any Borrower or Third Party Obligor; any
Borrower or Third Party Obligor becomes insolvent, makes a general assignment
for the benefit of creditors or is generally not paying its debts as they become
due; or any attachment or like levy on any property of any Borrower or Third
Party Obligor.

         (c) The death or incapacity of any individual Borrower or Third Party
Obligor, or the dissolution or liquidation of any Borrower or Third Party
Obligor which is a corporation, partnership, joint venture or other type of
entity.

         (d) Any default in the payment or performance of any obligation, or any
defined event of default, under any provisions of any contract, instrument or
document pursuant to which any Borrower or Third Party Obligor has incurred any
obligation for borrowed money, any purchase obligation, or any other liability
of any kind to any person or entity, including the holder.

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         (e) Any financial statement provided by any Borrower or Third Party
Obligor to Bank proves to be incorrect, false or misleading in any material
respect.

         (f) Any sale or transfer of all or a substantial or material part of
the assets of any Borrower or Third Party Obligor other than in the ordinary
course of its business.

         (g) Any violation or breach of any provision of, or any defined event
of default under, any addendum to this Note or any loan agreement, guaranty,
security agreement, deed of trust, mortgage or other document executed in
connection with or securing this Note. (h)

MISCELLANEOUS:

         (a) REMEDIES. Upon the occurrence of any Event of Default, the holder
of this Note, at the holder's option, may declare all sums of principal and
interest outstanding hereunder to be immediately due and payable without
presentment, demand, notice of nonperformance, notice of protest, protest or
notice of dishonor, all of which are expressly waived by each Borrower, and the
obligation, if any, of the holder to extend any further credit hereunder shall
immediately cease and terminate. Each Borrower shall pay to the holder
immediately upon demand the full amount of all payments, advances, charges,
costs and expenses, including reasonable attorneys' fees (to include outside
counsel fees and all allocated costs of the holder's in-house counsel), expended
or incurred by the holder in connection with the enforcement of the holder's
rights and/or the collection of any amounts which become due to the holder under
this Note, and the prosecution or defense of any action in any way related to
this Note, including without limitation, any action for declaratory relief,
whether incurred at the trial or appellate level, in an arbitration proceeding
or otherwise, and including any of the foregoing incurred in connection with any
bankruptcy proceeding (including without limitation, any adversary proceeding,
contested matter or motion brought by Bank or any other person) relating to any
Borrower or any other person or entity.

         (b) OBLIGATIONS JOINT AND SEVERAL. Should more than one person or
entity sign this Note as a Borrower, the obligations of each such Borrower shall
be joint and several.

         (c) GOVERNING LAW. This Note shall be governed by and construed in
accordance with the laws of the State of California.


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         IN WITNESS WHEREOF, the undersigned has executed this Note as of the
date first written above.



XET CORPORATION


By: /S/ RANDOLPH FOOTE
    --------------------------------

Title: VP/CFO/SEC



CXR TELCOM CORPORATION

By: /S/ RANDOLPH FOOTE
   ---------------------------------

Title: VP/CFO/SEC


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