EXHIBIT 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND

CHIEF FINANCIAL OFFICER PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to the requirements set forth in Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. §1350), James A. Milton, Chief Executive Officer of SoundBite Communications, Inc. (the “Company”), and Robert C. Leahy, Chief Financial Officer of the Company, each hereby certifies that, to the best of his knowledge:

 

  1. The Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2012, to which this Certificate is attached as Exhibit 32.1 (the “Quarterly Report”), fully complies with the requirements of Section 13(a) or Section 15(d) of the Exchange Act; and

 

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

In Witness Whereof, the undersigned have set their hands hereto as of August 6, 2012.

 

By:  

/s/ James A. Milton

  James A. Milton
  Chief Executive Officer
By:  

/s/ Robert C. Leahy

  Robert C. Leahy
  Chief Financial Officer