UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 or 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported): June 29, 2007

INTER-TEL (DELAWARE), INCORPORATED

(Exact Name of Registrant as Specified in Charter)

Delaware

0-10211

86-0220994

(State or Other Jurisdiction

of Incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

1615 S. 52nd Street

Tempe, Arizona

85281

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s telephone number, including area code: (480) 449-8900

N/A

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01.

Other Events.

On June 29, 2007, Inter-Tel (Delaware), Incorporated issued a press release announcing that the Special Meeting of Stockholders to vote on the merger with Mitel Networks Corporation, which was originally scheduled for June 29, 2007, has been postponed. The new date, time and location for the meeting will be announced early next week.

The press release issued by Inter-Tel is attached as Exhibit 99.1 hereto and is incorporated into this Item 8.01 by this reference.

Item 9.01.

Financial Statements and Exhibits.

(d) Exhibits.


Exhibit		Description
99.1		Press Release dated June 29, 2007

SIGNATURE

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 hereunto duly authorized.

EXHIBIT INDEX


Exhibit		Description
99.1		Press Release dated June 29, 2007

INTER-TEL (DELAWARE), INCORPORATED

Date: June 29, 2007

/s/ Norman Stout

Norman Stout

Chief Executive Officer

INTER TEL (DELAWARE), INC 8-K