UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   ----------

                                   FORM 10-Q/A
                                 AMENDMENT NO. 1

                  QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934

         FOR THE QUARTER ENDED                   COMMISSION FILE NUMBER:
             JUNE 30, 2000                               0-10211

                             INTER-TEL, INCORPORATED


Incorporated in the State of Arizona                       I.R.S. No. 86-0220994


                        120 North 44th Street, Suite 200
                           Phoenix, Arizona 85034-1822

                                 (602) 302-8900


                                  Common Stock
               (26,424,825 shares outstanding as of June 30, 2000)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such shorter  periods that the  registrant  was
required  file  such  reports),   and  (2)  has  been  subject  to  such  filing
requirements for the past 90 days. Yes [X] No [ ]

                                Explanatory Note

This  amendment  amends  the  Quarterly  Report  on Form  10-Q  filed  with  the
Securities  and Exchange  Commission on August 14, 2000 by the  Registrant.  The
cover page and Item 4 of Part II have been amended.
<PAGE>
                           PART II. OTHER INFORMATION

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITIES HOLDERS

1. On May 3, 2000,  at the  Registrant's  annual  meeting of  shareholders,  the
shareholders of the Registrant elected the following directors, each of whom was
a nominee of the Registrant:

Name                                Votes For                 Votes Withheld
----                                ---------                 --------------
Steven G. Mihaylo                   16,237,162                      375,896
J. Robert Anderson                  16,235,862                      377,196
Jerry W. Chapman                    16,233,722                      379,336
Gary D. Edens                       16,236,072                      376,986
C. Roland Haden                     16,236,384                      376,674

2. The proposal to approve  adoption of an Amendment  to the  Registrant's  1997
Long-Term Incentive Plan to increase the shares reserved by 1,250,000 shares and
to amend  the plan to  prohibit  the  repricing  of  options  under the Plan was
approved by the Registrant's shareholders, receiving the following votes:

                                   Votes For                  Percentage
                                   ---------                  ----------
For:                               13,021,718                     78.4%
Against:                            3,511,522                     21.1%
Abstain                                79,818                      0.5%

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<PAGE>
                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.

                                        INTER-TEL, INCORPORATED


Date:  August 16, 2000                  /s/ Steven G. Mihaylo
                                        ----------------------------------------
                                        Steven G. Mihaylo,
                                        Chairman of the Board,
                                        Chief Executive Officer and President


Date:  August 16, 2000                  /s/ Kurt R. Kneip
                                        ----------------------------------------
                                        Kurt R. Kneip,
                                        Vice President
                                        and Chief Financial Officer

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