Exhibit 4.4
                                                                       EXHIBIT B
                             SECURED PROMISSORY NOTE

FORT LAUDERDALE, FLORIDA                                        U.S. $400,000.00
NOVEMBER 25, 2003

         FOR VALUE RECEIVED, the undersigned, BIZCOM, U.S.A., INC., a Florida
corporation as maker hereof (the "Maker"), does hereby promise to pay, pursuant
to the terms contained herein, in lawful money of the United States of America
to the order of SOPHIA COMMUNICATIONS, INC., a Delaware corporation as payee
(the "Payee") at 2600 Douglas Road, Suite 1004,Coral Gables, FL 33134 (to the
attention of Roberto Isaias, Chairman), or at such other address as the Payee of
this Promissory Note (the "Note") shall, in writing, designate, the principal
sum of FOUR HUNDRED THOUSAND DOLLARS ($400,000.00), together with simple
interest to accrue at the rate of four percent (4%) per annum, on or before
January 31, 2004 (the "Due Date"). There is no pre-payment penalty in connection
with any principal amount or interest payments made before the due date
therefor.

         This Note and the obligations due hereunder are secured by a pledge and
security agreement by and among SMR Management, Inc., a wholly-owned subsidiary
of the Maker (the "Subsidiary"), the Maker, and the Payee dated as of November
25, 2003 (the "Pledge and Security Agreement") which grants Payee a security
interest in the Pledged Shares (as that term is defined in the Pledge and
Security Agreement) (the "Collateral").

         Any failure on the part of Payee at any time to require the performance
by Maker of any of the terms of provisions hereof, even if known, shall in no
way affect the right thereafter to enforce the same, nor shall any failure of
Payee to insist on strict compliance with the terms and conditions hereof be
taken or held to be a waiver of any succeeding breach or of the right of Payee
to insist on strict compliance with the terms and conditions hereof.

         Maker is obligated hereunder to notify Payee in writing concurrent with
the occurrence of any such events and the failure to so notify shall also
constitute a default hereunder.

         In the event Payee fails to pay the amount due hereunder on the date it
is due or within five (5) business days after written notice of such failure
from the Payee, or in the event of any other default under this Note, at the
option of the Payee hereof: (i) the Payee may immediately declare the whole sum
of principal and interest hereunder immediately due and payable; (ii) interest
may be charged on the amount delinquent at the maximum rate permitted by law,
effective from the date that such amount(s) shall become overdue until such
delinquent amount(s), with interest thereon at such rate, shall have been paid
in full; and/or (iii) the Payee may foreclose on the Collateral subject to the
Pledge and Security Agreement.

         If this Note is not paid when due or within five (5) business days
after written notice of such failure from the Payee, Maker promises to pay all
costs and expenses of collection, including reasonable attorneys' fees incurred
by the Payee hereof on account of such collection, whether or not suit is filed
thereon and such costs and expenses shall become part of the principal due and
owing and bear interest at the default rate provided for herein. Maker hereby
waives notice of acceptance, presentment, demand for performance, payment,
protest, notice of dishonor or nonpayment of the Note, suit or the taking of any
other action by the Payee against the Maker and the right to assert any statute
of limitations.

         All payments by Maker under this Note are to be made free and clear of
any present or future tax, levy, assessment, impost, fee, charge, restriction,
or condition whatsoever (hereinafter collectively referred to as "Tax") now or
hereafter imposed by any applicable law or regulation. Notwithstanding the
above, if Maker is compelled by law to deduct any Tax, Maker shall: (i) pay to
<PAGE>

Payee hereof in United States Dollars an amount that, after deductions for such
Tax, equals the amount that otherwise would have been received if no Tax had
been imposed; and (ii) if requested by the Payee hereof, forward to the Payee
hereof within 90 days after each payment of such Tax, in a form acceptable to
said Payee, official documentation or certified copies thereof evidencing
payment of such Tax.

         The waiver by Payee of Maker's prompt and complete performance of, or
default under, any provision of this Note shall not operate nor be construed as
a waiver of any subsequent breach or default, and the failure by the Payee to
exercise any right or remedy that it may possess under this Note shall not
operate nor be construed as a bar to the exercise of that right or remedy upon
the occurrence of any subsequent breach or default. Maker agrees to pay when due
all documentary stamp tax which may be required in connection with the issuance
of this Note.

         This Note shall be governed by and construed solely in accordance with
the laws of the State of Florida without regard to conflict or choice of law
principles. The parties hereto agree that all actions and/or proceedings
relating directly or indirectly hereto shall be litigated solely in the state
courts and/or federal courts located in Broward County, Florida. The parties
hereto expressly consent to the jurisdiction of any such courts and to venue
therein and waive their right to a jury trial in any action or proceeding
arising directly or indirectly from this Note. The prevailing party in any
action and/or proceeding shall be entitled to recover its reasonable attorneys'
fees and costs from the other party.

         This Note cannot be modified, amended or terminated except in a written
instrument agreed to and executed by the Maker and the Payee. The Maker may not
assign this Note or any of its rights or obligations hereunder without the prior
written consent of the Payee, which consent may be withheld in the Payee's
absolute and sole discretion and without any liability to the Payee, provided,
however, that Maker shall have the right to assign its obligations hereunder to
an affiliate (as such term is defined in Rule 405 under the Securities Act of
1933, as amended) or subsidiary of Maker without the consent of Payee, provided
that any such affiliate or subsidiary shall have assets and liabilities of at
least equivalent value as the Maker as of the date hereof. Payee may not assign
this Note or any of its rights or obligations hereunder to any person,
corporation or entity without the prior written consent of Maker, which may be
withheld in its sole discretion; provided, however, Maker or its assigns shall
have the absolute right to assign all or any part of this Note and any rights to
payment hereunder without the prior written consent of Maker to: (i) a
wholly-owned subsidiary of the Payee or (ii) any shareholder of Payee.

                                   BIZCOM U.S.A., INC.




                                   By: /s/ Hanan Klein
                                       ---------------------------
                                          Hanan Klein, President