EXHIBIT 32

                                  CERTIFICATION

                         PURSUANT TO SECTION 906 OF THE
             SARBANES-OXLEY ACT OF 2002 (SUBSECTIONS (A) AND (B) OF
               SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES
                                      CODE)

     Pursuant to section 906 of the  Sarbanes-Oxley Act of 2002 (subsections (a)
and (b) of section 1350,  chapter 63 of title 18,  United States Code),  each of
the  undersigned  officers of  deltathree,  Inc.,  a Delaware  corporation  (the
"Company"), does hereby certify, to such officer's knowledge, that:


     The Quarterly  Report on Form 10-Q for the quarter ended June 30, 2003 (the
"Form 10-Q") of the Company  fully  complies  with the  requirements  of section
13(a) or 15(d) of the Securities Exchange Act of 1934, and information contained
in the Form 10-Q  fairly  presents,  in all  material  respects,  the  financial
condition and results of operations of the Company.


Dated:   AUGUST 7, 2003      /s/ SHIMMY ZIMELS
                             --------------------------------------------------
                                 Shimmy Zimels
                                 Chief Executive Officer
                                 (Principal Executive Officer)


Dated:   AUGUST 7, 2003      /s/ PAUL C. WHITE
                             --------------------------------------------------
                                 Paul C. White
                                 Chief Financial Officer
                                 (Principal Financial and Accounting Officer)


A signed  original of this  written  statement  required by Section 906 has been
provided to the Company and will be retained by the Company and furnished to the
Securities and Exchange Commission or its staff upon request.


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