Mitel Demonstrates Continued Momentum with Microsoft in Unified Communications
Unveils New Customers, Feature Updates to Mitel Unified Communications Built Upon Microsoft Software

OTTAWA, Ontario, Canada – October 16, 2007 – Mitel®, the trusted provider of unified communications solutions, today joined other industry leaders at the worldwide Microsoft Unified Communications Launch 2007 in San Francisco. Mitel announced it will use the Microsoft Office Communications Server 2007 platform including its call management capabilities for a future generation of solutions. Mitel optimizes Office Communications Server 2007 today to deliver a rich unified communications experience to businesses. Mitel is building solutions today on Office Communications Server 2007 to focus both on specific vertical markets and small and medium businesses, a historical stronghold for Mitel.

Mitel has a long-standing commitment to build on the Microsoft platform and is extending that with Office Communications Server 2007. Microsoft and Mitel share a long-term vision of software-powered communications. With the announced availability of Office Communications Server 2007, Mitel will feature its unified communications solutions with Microsoft to provide new and existing customers, including over 100,000 users already addressed by the Mitel unified communications solution that integrates with the Microsoft software, a paced, easy and rewarding migration roadmap with a seamless software upgrade.

Mitel’s vision that mission critical voice communications-based applications must seamlessly integrate with other business solutions to enhance the user experience and the effectiveness of “in the moment” interactions has underpinned its relationship with Microsoft. Together, the companies are facilitating the rapid integration of solutions that enable customers to evolve their communications environment and solve common business challenges such as dispersed teams, disjointed communications, and complicated collaboration efforts in a global environment.

“Mitel was early to the unified communications table, first with real-time collaboration and continues as one of Microsoft’s partners with Office Communications Server 2007,” said Gurdeep Singh Pal, corporate vice president, Unified Communications Group, at Microsoft. “Together, we will continue to demonstrate the value of Mitel’s solutions that integrate with Microsoft’s solutions to help customers streamline communications between people and organizations, regardless of medium, modality, platform, device or location.”

Multimate (www.multimate.nl), one of the fastest growing home improvement specialty retailer in the Netherlands, and Bowman and Brooke (www.bowmanandbrooke.com), a large multi-state law firm in the U.S., are two of the many Mitel customers who have benefited from the easy integration of the Mitel 3300 IP Communications Platform (ICP), Mitel Live Business Gateway and Microsoft to unify their communications and improve employee productivity.

“In the competitive ‘Do It Yourself’ retail market, being innovative and reliable in automation sets us apart from competition towards our franchisers,” said Jerry Otto, IT and communications infrastructure manager, Multimate Head Office. “The combined Microsoft Office Communications Server 2007, Microsoft Exchange Server 2007 and Mitel IP communications with Mitel Mobile Extension not only adds value to our centralized IT and communications services offering, it enables co-workers from the head office to work and communicate in a standardized way in any of our 75 franchise outlets.”

The 3300 ICP, operating as a gateway and using industry-standard protocols, allows for a customers’ legacy voice infrastructure to benefit from the integrated unified communications solutions of Mitel and Microsoft. Mitel’s Live Business Gateway currently allows for the full benefits of the Microsoft Office Communications Server 2007 to be extended to such Mitel applications as Mobile Extension, Contact Center, Attendant Console, Mitel 5300 Intelligent Directory and Mitel IP Phones. These solutions are available today and are featured at Microsoft Technology Centers (MTC).

“Mitel has been unwavering in its commitment to providing customers with the ability to lever their Microsoft infrastructure as a platform for enhanced office collaboration,” said Paul Butcher, president and chief operating officer, Mitel. “We add value to Microsoft’s core applications and collaboration suite by providing a comprehensive unified communications solution to knowledge workers, office workgroups, and beyond, while reaching to the specialized communications needs of employees in vertical markets who operate away from the PC.”

Mitel will be joining Microsoft for the Office Communications 2007 launch events in various locations throughout the world.

Additional information about the Mitel and Microsoft partnership can be found at (www.mitel.com/uclaunch2007).

About Mitel
Headquartered in Ottawa, Canada, with offices, partners and resellers worldwide, Mitel is a leading provider of integrated communications solutions and services for business customers. Following its merger with Inter-Tel, Inc., Mitel offers customers greater flexibility and choice of solutions, from basic business communications to sophisticated unified communications, from pre-packaged to tailored applications, and from an outright capital purchase to a managed service. For more information, please visit www.mitel.com.