Deltathree (DDDC) 10-Q 2008 Q3 Quarterly report

Exhibit 32.2

CERTIFICATION

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, the undersigned officer of deltathree, Inc.  (the “Company”) does hereby certify, to such officer’s knowledge, that:

(1)	the Quarterly Report on Form 10-Q for the quarter ended September 30, 2008 (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
(2)	the information contained in the Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: November 19, 2008	By:	/s/ Richard Grant
		Richard Grant
		Chief Financial 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.