Mitel Recruits Industry Veteran Joe Vitalone as Executive Vice President of Sales in the Americas

Mitel Recruits Industry Veteran Joe Vitalone as Executive Vice President of
Sales in the Americas

Company Reinforces Sales Leadership to Aggressively Target Revenue and Market
Share Growth

OTTAWA, March 12, 2013 (GLOBE NEWSWIRE) -- Mitel® (Nasdaq:MITL) (TSX:MNW), a
leading provider of cloud and premises-based unified communications software
solutions, today announced that Joe Vitalone will be joining the company as
executive vice president of Sales for the Americas. In this role, Mr. Vitalone
will have executive responsibility for growing Mitel sales revenues in North
America, the Caribbean and Latin America, and building strategic relationships
within the regions' channel communities.

A seasoned veteran with more than 25 years of sales and business development
experience in telecom and technology industries, Mr. Vitalone joins Mitel from
Shoretel where he most recently held the position of vice president of Channel
Management. Mr. Vitalone has also held senior sales management positions at
LifeSize Communications, Polycom, and CoVi Technologies, as well as
PictureTel, AT&T Wireless, and a previous role at Mitel.

Mr. Vitalone will report to Mitel's president and CEO, Richard McBee.

"I am thrilled that Joe Vitalone is joining Mitel. His proven track record of
revenue growth combined with his channel expertise and strong partnering
abilities align perfectly with Mitel's strategic direction," said Mr. McBee.
"Joe knows our company and our customers, and is ideally placed to help us
drive Mitel to the next level of growth."

"Mitel is known for its innovation and technology leadership in our industry,
and has successfully been able to translate that leadership into a profitable
business with market momentum," said Mr. Vitalone. "They have the wind at
their backs and a great opportunity to shape our industry. It's an exciting
time to be joining the team."

About Mitel

Mitel® (Nasdaq:MITL) (TSX:MNW) is a global provider of unified communications
and collaboration (UCC) software, solutions and services that enable
organizations to conduct business anywhere, over any medium with the device of
their choice. Through a single cloud-ready software stream, Mitel's Freedom
architecture provides customers in over 100 countries the flexibility and
simplicity needed to support today's dynamic work environment. For more
information visit www.mitel.com.

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=8599

MITL-C

CONTACT: Contact Information
         Amy MacLeod (media),
         613-592-2122 x71245,
         amy_macleod@mitel.com
        
         Malcolm Brown (industry analysts),
         613-592-2122 x71246,
         malcolm_brown@mitel.com
        
         Alice Kousoum or Cynthia Hiponia (investor relations),
         613-592-2122 x71997,
         investorrelations@mitel.com

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