EXHIBIT 32.1
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 Inter-Tel (DELAWARE) Incorporated (“Company”), does hereby certify, to such officer’s knowledge, that:
The Annual Report on Form 10-K/A for the fiscal year ended December 31, 2005 (“Form 10-K”) 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 Form10-K fairly presents, in all material respects, the financial condition and results of operations of the Company.
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| | | /s/ NORMAN STOUT |
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| Date: August 10, 2006 | | Norman Stout |
| | | Director and Chief Executive Officer (Principal |
| | | Executive Officer) |
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| | | /s/ KURT R. KNEIP |
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| Date: August 10, 2006 | | Kurt R. Kneip, |
| | | Senior Vice President and Chief Financial Officer |
| | | (Principal Financial Officer) |
