EXHIBIT 32.2

                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 SpectraLink Corporation (the "Company")
on Form 10-K for the period ending December 31, 2004 as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), I, David
I. Rosenthal, Executive Vice President of Finance and Administration and Chief
Financial Officer of the Company, certify to the best of my knowledge, pursuant
to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, that:

      (1)   The Report fully complies with the requirements of Section 13(a) of
            the Securities Exchange Act of 1934, as amended; 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/ DAVID I. ROSENTHAL

Executive Vice President of Finance and Administration and Chief Financial
Officer March 4, 2005

A signed original of this written statement required by Section 906 has been
provided to SpectraLink Corporation and will be retained by SpectraLink
Corporation and furnished to the Securities and Exchange Commission or its staff
upon request. This certification accompanies this report pursuant to Section 906
of the Sarbanes-Oxley Act of 2002, is not deemed filed with the Securities and
Exchange Commission and is not to be incorporated by reference into any filing
of the Company under the Securities Act of 1933 or the Securities Exchange Act
of 1934 (whether made before or after the date of the Report), irrespective of
any general incorporation language contained in such filing.