Enables Delivery of Significant Business Value Through
              Software-Only Communications Solutions

SYDNEY, Australia, Oct. 25, 2010 (GLOBE NEWSWIRE) -- Mitel
(Nasdaq:MITL), a leading provider of unified communications software
solutions, today announced that Telstra, a leading Australian
telecommunications and information services company, has expanded its
portfolio of Mitel products to include Mitel Virtual Solutions. These
solutions allow businesses to leverage their investment in
virtualization to help reduce maintenance costs, reduce power
consumption, and decrease provisioning, installation, and application
management overhead.

IMB Building Society has selected Mitel and Telstra to leverage its
investment in VMware(R) by deploying Virtual Mitel Communications
Director (Virtual MCD) and Virtual Mitel Applications Suite (Virtual
MAS). "We have made a significant investment in VMware, and the more
applications we can run on this infrastructure, the better the result
for our business," said Alby Salido, IT infrastructure services
manager, IMB. "Mitel Virtual Solutions help us take our infrastructure
strategy to the next level and with support of VMware data center
management tools, allow us to increase the resiliency of our
business-critical communications solutions. The solution provided by
Mitel and Telstra works in conjunction with our existing business
continuity plan with the aim to reduce costs, consolidate maintenance,
and minimize complexity for all applications in our data center."

Mitel's Virtual Solutions leverage VMware vSphere(TM) 4 to enable
businesses to consolidate Mitel's voice and unified communications
applications alongside non-voice business applications to help improve
productivity and efficiencies in management and provide a single
business continuity plan. With Mitel Virtual Solutions, Telstra can
also offer customers a range of deployment options depending on the
needs of the business. Customers can choose to purchase and deploy as
an on-site premise solution, in the customer's data centre, or another
outsourced data center.

"Mitel Virtual Solutions builds on the existing Mitel product suite we
offer our customers to enable them to drive more efficiency and
productivity in their organization," said Boris Corluka, director
unified communications Telstra. "Our customers are constantly looking
for ways to consolidate their data centers. With the Mitel Virtual
Solutions our customers are able to utilize the latest unified
communications applications through a virtualized service that is
driving ICT cost savings for their organizations."

Telstra has also certified its SIP trunking connectivity with the full
range of Mitel Virtual Solutions. This allows customers to deploy a
complete end-to-end software-only communications solution that includes
call control, unified communications applications, and public network
connectivity and services all from one vendor.

"Mitel prides itself in forming strategic relationships with
best-of-breed partners to continue to develop solutions that tailor to
the changing needs of individual customers," said Gwilym Funnell,
vice-president for Mitel Asia Pacific Region. "Working with Telstra, we
can continue to offer our customers communications solutions that can
run on Mitel platforms, industry standard servers, or in virtualized
environments all connected through ISDN or SIP trunking. This gives
customers an unprecedented choice of deployment options and the
opportunity to retire their legacy PBX in favor of a pure software
solution."

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. For more information visit: http://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
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MITL-C


CONTACT:  Mitel Networks Corporation
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          Danielle McNeil
            613-592-2122 x4643
            danielle_mcneil@mitel.com
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            415-992-3213
            lrose@sterlingpr.com  
          Industry Analysts
          Kevin Johnson
            613-592-2122 x6690
            kevin_johnson@mitel.com
            Twitter: @Kevin_Johnson
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            613-592-2122 x1992
            investorrelations@mitel.com