EXHIBIT 32.1

                   CERTIFICATION PURSUANT TO RULE 13a-14(b) OR
                     RULE 15d-14(b) and 18 U.S.C. Sec.1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the amended quarterly report of Universal Communication
Systems, Inc. (the "Company") on Form 10-QSB for the period ended December 31,
2003 as filed with the Securities and Exchange Commission on the date hereof
(the "Report"), I, Michael J. Zwebner, Chief Executive Officer of the Company,
certify, pursuant to 18 U.S.C. Sec.1350, as adopted pursuant to Section 906 of
the Sarbanes-Oxley Act of 2002, that:

(1)  The Report fully complies with the requirements of Section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

(2)  The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the Company.

Date: June 29, 2004                 By: /s/ Michael J. Zwebner
                                        -----------------------
                                        Michael J. Zwebner
                                        Chief Executive Officer