SAN JOSE, CA--(Marketwire - Jul 14, 2011) - AltiGen Communications, Inc. (PINKSHEETS: ATGN) (OTCQX: ATGN), the leading provider of integrated Microsoft-based Unified Communications solutions, announced today that AOS (Alexander Open Systems) has chosen to represent AltiGen Communication's mobility and contact center solutions to customers choosing Microsoft Lync Server 2010.

AOS is the leading consultative technology partner in the Midwest. Headquartered in Overland Park, Kansas, the company supports thousands of customers across 11 states. The company has a highly successful Voice over IP practice with more than 700 voice deployments to date. As a Microsoft voice partner, AOS has made significant investments in training and staff to support Microsoft Lync. The company also consults, designs, implements and supports Local, Wide Area and Wireless Networks, Collaboration, Data Centers, as well as Physical and Data Security.

"We've invested more than $3,000,000 building our Microsoft Lync practice," said AOS Vice President of Microsoft Practice Mitch Roberson. "On staff we also have a Microsoft Certified Master on Microsoft Lync Server 2010, of which there are currently just 17 in the world. To complete our Microsoft offering, we reviewed all available smart phone applications and contact center solutions that integrate with Microsoft Lync Server 2010. In the end, we selected AltiGen based on the quality and completeness of the applications. We will also offer AltiGen's iFusion docking station. The iFusion will eliminate an expensive IP phone for our customers, and allow them to fully leverage their smart phone as an extension on the corporate phone system."

"AOS will provide significant presence for us in the Midwest," said AltiGen Vice President of Sales Mike Plumer. "The company has a great reputation and has demonstrated repeated success in providing corporations end-to-end solutions. With such significant focus on growing their Microsoft Lync practice, AOS is in a great position to benefit from the many enterprise customers looking to transition from legacy technology to Microsoft Lync Server 2010."

About AltiGen Communications
AltiGen Communications, Inc. (PINKSHEETS: ATGN) (OTCQX: ATGN) is a leading provider of Unified Mobile Convergence and Contact Center solutions. Designed to address the business communications requirements of both enterprise and service provider organizations, our solutions consist of innovative software applications and the industry's first integrated communications docking stations. AltiGen is headquartered in San Jose, California, with international operations based in Shanghai, China, with a global network of business partners providing local sales, service and support to more than 10,000 customers worldwide.

For more information, call 1-888-ALTIGEN or visit the web site at

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 unified communications solutions and our iFusion docking stations, our ability to interface to Microsoft's Lync Server, our ability to ensure a successful partnership with Alexander Open Systems, and to be able to take advantage of a significant market opportunity. 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, 2010. 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.

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