OTTAWA, Ontario, Sept. 3, 2010 (GLOBE NEWSWIRE) -- Mitel(R)
(Nasdaq:MITL), a leading provider of unified communications (UC)
software solutions, today announced that Philip Keenan has been
appointed as Vice President of U.S. Partner Business, effective
immediately. Philip will be reporting to Paul Butcher, President and
COO of Mitel.

As VP of U.S Partner Business, Keenan will be responsible for all
channel sales and support activities in the U.S. market.

"I am delighted to make this announcement. Phil brings a wealth of
experience and leadership to the company and his role will allow us to
further strengthen our channel sales and development in the U.S.
market," said Butcher. "As Mitel makes the transition into a software
company, Phil will also play a key role in driving the continued
evolution within our channel to successfully leverage this opportunity
as the market continues to grow."

Philip has enjoyed a highly successful 25-year career in worldwide
sales, marketing, and strategic business development. He previously
worked as the VP Multimedia Services at Nortel where he established
Nortel's Telepresence and collaboration services. Prior to that, Philip
worked as a senior executive at Polycom where he held key positions
including Senior VP Strategy and Solutions Marketing, Senior VP
Worldwide Sales, and General Manager of their Network Systems Division.
He holds a Bachelor of Science from Cardiff University, where he
graduated with honors.

About Mitel

Mitel Networks (Nasdaq:MITL) 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. Visit http://www.mitel.com for more information.

Mitel and the Mitel logo are registered trademarks of Mitel Networks
Corporation.

All other trademarks are the property of their respective owners.

The Mitel Networks Corporation logo is available at
http://www.globenewswire.com/newsroom/prs/?pkgid=7323

MITL-C


CONTACT:  Mitel Networks Corporation
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            613-592-2122 x6690
            kevin_johnson@mitel.com
            Twitter: @Kevin_Johnson
          Cynthia Hiponia (investor relations)
            613-592-2122 x1992
            investorrelations@mitel.com