Exhibit 32.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Annual Report of Aspect Communications Corporation (the “Company”) on Form 10-K for the period ending December 31, 2003, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Gary E. Barnett, President, and Chief Executive Officer of the Company and Gary A. Wetsel, Executive Vice President, Finance, Chief Financial Officer, and Chief Administrative Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 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 result of operations of the Company for the periods presented therein. |
| /s/ Gary E. Barnett | /s/ Gary A. Wetsel | |
| Gary E. Barnett | Gary A. Wetsel | |
| President, and Chief Executive Officer | Executive Vice President, Finance, | |
| February 18, 2004 | Chief Financial Officer, and Chief Administrative Officer | |
| February 18, 2004 |
