Premier IT Systems Integrator, Technology Integration Group, Joins AltiGen Partner Network

SAN JOSE, CA--(Marketwire - December 3, 2009) - AltiGen Communications, Inc. (NASDAQ: ATGN), the leading provider of integrated Microsoft-based Unified Communications solutions, is pleased to announce the addition of Technology Integration Group (www.TIG.com) to its partner network. With 22 offices throughout the United States, plus operations in Germany and China, TIG has over 28 years of experience providing SMB and enterprise customers with best-in-class technology solutions. Profitable each year since the company's inception in 1981, TIG delivers a breadth of IT products and services via a consultative, best practices approach to solution design and implementation. An award-winning Certified Minority Enterprise, TIG is a leading diversity supplier to organizations nationwide.

"TIG's Unified Communications practice is growing rapidly as our customers embrace the significant productivity and service level enhancements a true Unified Communications platform can deliver," stated David Wittmann, TIG Director of Unified Communications. "As a Microsoft partner, we look forward to collaborating with AltiGen in designing and deploying robust Microsoft-based Unified Communications solutions for our mid-market and enterprise customers."

"We are very selective regarding the technology partners we represent," stated Tasha Hicks, TIG Director of Marketing. "AltiGen's 100% Microsoft-based architecture with its seamless integration to both Microsoft Exchange and Office Communications Server (OCS) complements our Microsoft practice as it enables us to deliver even greater value for our customers."

"As a Microsoft Gold Certified partner with over 300 employees, $285 million in annual revenues and a dedicated Unified Communications practice, TIG is ideally positioned to deliver AltiGen's Microsoft-based, software-centric solutions to innovative organizations throughout the United States," stated Jeff Kays, AltiGen's Vice President of Business Development.

"With significant expertise in both data networking and Unified Communications, TIG is well equipped to leverage AltiGen's modular, software-powered architecture to design cost-effective Unified Communications solutions for organizations utilizing Microsoft infrastructure technologies," stated AltiGen Vice President of Sales Mike Plumer. "We look forward to collaborating with TIG in the deployment of our Microsoft-based Unified Communications platform."

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.

Safe Harbor Statement

This press release contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements regarding the continued market acceptance of our Voice over IP telephone systems, call center offerings, and AltiGen's ability to successfully grow its partnerships with Microsoft vendors. These statements reflect management's current expectation. However, actual results could differ materially as a result of unknown risks and uncertainties, including but not limited to, risks related to AltiGen's limited operating history. For a more detailed description of these and other risks and uncertainties affecting AltiGen's performance, please refer to AltiGen's Annual Report on Form 10-K for the fiscal year ended September 30, 2008 and all subsequent current reports on Form 8-K and quarterly reports on Form 10-Q. All forward-looking statements in this press release are based on information available to AltiGen as of the date hereof and AltiGen assumes no obligation to update these forward-looking statements.