Inter-Tel to Display Award-Winning Solutions at VoiceCon March 6-9 in Orlando

Industry-Leading IP Communications Systems, Collaboration and Presence Management Tools to be Exhibited, Demonstrated

TEMPE, Ariz., Feb. 28 -- Inter-Tel, Incorporated (NASDAQ:INTL), a leading provider of voice and data communications solutions for businesses, will be exhibiting a number of its award-winning products and applications at the 2006 Spring VoiceCon Conference, March 6-9 at the Gaylord Palms Hotel in Orlando. Inter-Tel will be located at booth number 917.

Inter-Tel will display and demonstrate a number of its advanced solutions engineered to help customers address their most fundamental business challenges. Highlighting the products on exhibit will be the family of Inter-Tel(R) 5000 Network Communications Solutions, which earned 2005 "Product of the Year" honors from Internet Telephony magazine. A series of IP-centric communications systems, the Inter-Tel(R) 5000 delivers Voice over IP (VoIP) technology to small- and mid-size businesses. Also on display will be Inter-Tel Remote Support, also chosen by Internet Telephony magazine as a 2005 "Product of the Year" recipient. Rounding out its exhibit will be Inter-Tel's complement of presence, collaboration and messaging applications that helped earn it the prestigious "Product Portfolio of the Year" award from Frost & Sullivan earlier this year.

In addition to its exhibit booth at VoiceCon, Inter-Tel product manager Aron Aicard will participate in a conference panel discussion on "Applying FCAPS Principles to IP Telephony" on Thursday, March 9, at 12 noon.

About Inter-Tel, Incorporated
Inter-Tel (NASDAQ:INTL) offers value-driven communications products; applications utilizing networks and server-based communications software; and a wide range of managed services that include voice and data network design and traffic provisioning, custom application development, and financial solutions packages. An industry-leading provider focused on the communication needs of business enterprises, Inter-Tel employs approximately 2,000 communications professionals, and services business customers through a network of approximately 59 company-owned, direct sales offices and over 350 authorized providers in North America, the United Kingdom, Ireland, Australia and South Africa. More information is available at

CONTACT: Norman Stout, CEO, +1-480-449-8900, or Craig W. Rauchle,
President and COO, +1-775-954-1200, or Kurt R. Kneip, Sr. Vice President and
CFO, +1-480-449-8900, or Jeanne Leckie, Vice President of Marketing,
+1-602-231-5161, all of Inter-Tel, Incorporated

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