AltiGen Communications Successfully Completes Microsoft's Open Interoperability Program for Office Communications Server 2007 R2

SAN JOSE, CA--(Marketwire - December 9, 2009) - AltiGen® Communications, Inc. (NASDAQ: ATGN), the leading provider of integrated Microsoft-based Unified Communications solutions, today announced that it has successfully completed Microsoft's Open Interoperability Program (OIP) for Office Communications Server 2007 R2.

The testing focus of the program is designed to ensure that vendors providing interoperability with Microsoft Unified Communications solutions do so in a consistent and supportable manner, including SIP and signaling support used with the Mediation Server role of Office Communications Server 2007 and the Unified Messaging role of Exchange Server 2007. Only products that meet rigorous and extensive testing requirements and conform to the specifications and test plans receive qualification.

AltiGen's OIP certified solution, Max Communications Server, is an integrated intelligent gateway and application server for Microsoft Office Communications Server 2007 providing an all-inclusive real-time, multi-role business communications solution consisting of:

--  Feature-Rich Call Center Server with native integration to Office
    Communications Server 2007
--  Call Recording
--  PSTN Connectivity for OCS 2007 R2 with Advanced Call Routing
    Capabilities
--  Branch/Remote office gateway with full remote survivability
    

"AltiGen is the first vendor to be certified as both an integrated call center solution and intelligent gateway solution with direct SIP integration to Microsoft's Office Communications Server 2007," said Niel Levonius, AltiGen Director of Business Strategy. "With a rich set of UC application functionality natively integrated to OCS 2007, AltiGen is able to uniquely offer Microsoft customers a powerful alternative to other Unified Communications technologies. Finally, customers are able to deploy a complete end-to-end 100% Microsoft-based Unified Communications solution."

Eddie Martinie, Information Technology Manager of Gibson Guitar said, "As an early adopter of Microsoft's Office Communications Server 2007, Gibson Guitar was looking to deploy a complete unified communications solution with call center capabilities. AltiGen was recommended by Microsoft to seamlessly add the intelligent call routing, supervision and call recording we required to OCS 2007. AltiGen's native integration to OCS 2007 enabled us to deploy a complete Microsoft-based UC solution enterprise-wide including VoIP, IM, Unified Messaging and Call Center in an easy to manage environment."

About AltiGen Communications

AltiGen Communications, Inc. (NASDAQ: ATGN) is a leading provider of 100 percent Microsoft-based VoIP business phone systems and Unified Communications solutions. Having more than 10,000 customers around the world, AltiGen solutions are designed for high reliability, ease of use, seamless integration to Microsoft infrastructure technologies, and are built on a scalable, open standards platform. AltiGen's worldwide headquarters is in Silicon Valley, California, with international operations based in Shanghai, China. Local sales, service and support are provided by AltiGen's worldwide network of over 300 certified partners. For more information, call 1-888-ALTIGEN or visit the web site at www.altigen.com.