Mitel Announces First Quarter Fiscal 2013 Financial Results Conference Call

OTTAWA, Aug. 13, 2012 (GLOBE NEWSWIRE)

Mitel (Nasdaq:MITL) (TSX:MNW), a leading provider of Unified Communications and Collaboration (UCC) software solutions, today announced that it will release its first quarter fiscal 2013 financial results after the market closes on Thursday, August 30, 2012.

The company will host an investor conference call and live webcast at 5:00 p.m. EDT (2:00 p.m. PDT) on the same day. To access the conference call, dial 866-322-8032. Callers outside the US and Canada should dial 416-640-3406. The webcast will be accessible on Mitel's investor relations website at http://investor.mitel.com/.

A replay of the conference call will be available through Tuesday, September 4, 2012. To access the replay, please dial 888-203-1112 and enter pass code 3407983. Callers outside the US and Canada should dial 647-436-0148 and enter pass code 3407983.

About Mitel

Mitel Networks (Nasdaq:MITL) (TSX:MNW) is a global provider of business communications solutions and services, consisting of unified communications and collaboration software applications, IP telephony platforms, mobility applications and managed and network services. Mitel enables businesses of all sizes to move beyond basic fixed telephony tools toward integrated multi-media collaboration solutions, accessible from anywhere, helping to improve performance, gain competitive advantage, and reduce costs. Mitel's global headquarters are in Ottawa, Canada, US headquarters are in Chandler, Arizona and EMEA headquarters are in Caldicot, UK, with offices, partners, and resellers worldwide. For more information visit: http://www.mitel.com.

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Contact Information

Amy MacLeod, 613-592-2122 x71245 amy_macleod@mitel.com Scott Smith, 408-884-5157 ssmith@sterlingpr.com Cynthia Hiponia (investor relations) 613-592-2122 x71997 investorrelations@mitel.com

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