SAN JOSE, CA--(Marketwire - April 16, 2010) - AltiGen® Communications, Inc. (OTCQX: ATGN), the leading provider of integrated Microsoft-based Unified Communications solutions, realizes immediate success with its new MaxMobile software for the iPhone now available with the latest VoIP Unified Communications platform -- Max Communications Server 6.5 Update 1. Therm-Omega-Tech, Inc. has experienced firsthand the power of bringing business-class PBX functionality to smart phone devices.

In February, Therm-Omega-Tech, Inc., a leading manufacturer of reliable Tempered Water Systems and Automatic Temperature Control Valves for Fluid Management since 1983, found themselves in the middle of the record setting blizzards in Warminster, Pennsylvania. Like most businesses in the area, Therm-Omega-Tech employees were stranded at home for days at a time due to major roadways being shut down during a Pennsylvania state of emergency. Just days before the snowstorms hit, Bardissi Enterprises, a certified partner of AltiGen Communications, deployed the MaxMobile solution for key sales executives at Therm-Omega-Tech as a part of a beta test for the revolutionary new MaxMobile software. When the storms hit, contrary to most business in the area, sales resumed as usual for Therm-Omega-Tech as both national and international calls continued to roll in via the employee's iPhones, which were running MaxMobile. Inbound callers were unaware of any disruptions in service as the iPhones functioned as normal business extensions with full PBX features.

"Paul Driscoll, Sales Manager for Therm-Omega-Tech, informed me that he received his usual sales calls throughout the day on his iPhone due to the MaxMobile install, which allowed him to quote and close three new deals -- even one prospective customer who called in from out of the country," stated George Bardissi, President of Bardissi Enterprises. "Therm-Omega-Tech is now going to deploy the iPhone MaxMobile Solution for the rest of the company staff. The AltiGen MaxMobile iPhone solution combined with Microsoft SBS 2008 and Exchange 2007 brings all the company resources directly to the palm of your hands, allowing companies to conduct business remotely regardless of storm disasters or any other factors preventing travel to the office."

"Our latest version of Max Communications Server brings advanced, enterprise class mobile PBX features to the Apple iPhone," stated Jerry Fleming, AltiGen's President & COO. "MaxMobile allows smart phones to act as the primary business PBX extension and dynamically redirect all PBX extension calls to the mobile phone -- completely transparent to the calling party. With critical business-class PBX functionality, integrated with advanced smart phone features, MaxMobile offers true mobile communications on a single smart phone platform."

About AltiGen Communications
AltiGen Communications, Inc. (OTCQX: 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 100 percent Microsoft-based business phone systems and Unified Communications solutions, AltiGen's continuing success with our MAX Communications Server 6.5 which includes the MaxMobile feature for the Apple I Phone, and our ability to continue to provide business-class PBX functionality to mobile phone marketplace. 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, 2009 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.