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, 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 Form 10-K/A fairly presents, in all material respects, the financial condition and results of operations of the Company.

	/s/ NORMAN STOUT
Date: April 27, 2006	Norman Stout
	Director and Chief Executive Officer
	(Principal Executive Officer)
	/s/ KURT R. KNEIP
Date: April 27, 2006	Kurt R. Kneip,
	Senior Vice President and Chief Financial Officer
	(Principal Financial Officer)

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