Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TOSECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-QSB of Elephant Talk Communications, Inc. (the “Company") for the period ended June 30, 2007 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), the undersigned, Steven van der Velden, President & Chief Executive Officer of the Company, and Willem Ackermans, Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. Section 1350, 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.

Dated: August 17, 2007	/s/ Steven van der Velden
	Steven van der Velden
	President & Chief Executive Officer
Dated: August 17, 2007	/s/ Willem Ackermans
	Willem Ackermans
	Chief Financial Officer