Beltway-Based Computerware Joins AltiGen's Growing Reseller Network

FREMONT, CA--(Marketwire - April 30, 2009) - AltiGen Communications, Inc. (NASDAQ: ATGN), a leading provider of 100 percent Microsoft-based VoIP business phone systems and Unified Communications solutions, is pleased to announce the addition of Computerware to its growing reseller network. Founded in 1976, Vienna, VA-based Computerware serves the technology needs of business, government, education, medical and institutional clients throughout Washington, DC, Virginia and Maryland. Through partnerships with leading technology developers such as Microsoft, HP, IBM, Lenovo and others, Computerware has been "making technology work" for their customers for the past 32 years.

"More and more of our commercial and public sector clients are seeking telephony solutions that cost effectively integrate with their key business applications," stated Computerware President Chip Evans. "AltiGen's Microsoft-based VoIP and unified communications platform is the ideal architecture for our clients deploying Microsoft infrastructure. AltiGen's strength in multi-site, mobility and contact center applications enables us to design and deliver high value, rapid ROI solutions for our clients in the government, education, healthcare and commercial sectors."

"We are pleased Computerware has selected AltiGen as their premier VoIP and unified communications technology partner," stated Jeff Kays, AltiGen's Vice President of Business Development. "With over 30 years' experience supporting the technology needs of commercial and public sector organizations throughout the Washington, DC metro area, Computerware is ideally positioned to promote and provide AltiGen's software-powered VoIP solutions in and around our nations capital."

"Computerware enhances our channel presence in the mid-Atlantic area and also brings proven expertise in key vertical markets including education and healthcare," noted AltiGen Vice President of Sales, Mike Plumer. "We look forward to collaborating with Computerware to deploy AltiGen's unified communications solutions to organizations throughout the beltway and beyond."

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 and AltiGen's ability to successfully grow its value added reseller channel. 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.