Avistar Communications Corporation : Avistar Expands its Virtualized Visual Communications Solutions and Demonstrates Cloud Ready Multiparty Videoconferencing @ Citrix Synergy

Avistar C3 Conference™ designed to fully support virtualized and cloud environments while delivering the industry's leading all-software multiparty videoconferencing experience

Barcelona, Spain, October 24, 2011 [Citrix Synergy] - Avistar Communications Corporation (www.avistar.com), a leader in unified visual communications solutions, will demonstrate the industry's most advanced and economical, fully virtualized all-software multiparty MCU at Citrix Synergy™ Barcelona.  Based on the same architecture as the Avistar C3 Integrator™ for Citrix solution, which has been recognized as the industry's leading all-software virtualized visual communications user experience, The Avistar C3 Conference™ solution is designed to provide a scalable, open and standards based multiparty videoconferencing experience that can be fully virtualized within industry leading platforms such as Citrix XenServer®.

Avistar will be exhibiting the Avistar C3 Conference™ solution in a fully virtualized Citrix XenServer environment at Citrix Synergy, Oct 26 - 28, 2011 in Barcelona, Avistar booth #522.

"Our technology partners and enterprise business clients are continually looking for ways to deliver industry-leading and differentiated solutions, while lowering the cost of videoconferencing and making these solutions available to a broader base of end users. With the rising cost of hardware-based MCU appliances, and the trend toward virtual and cloud computing, the Avistar C3 Conference solution is emerging as a unique and powerful value proposition for our partners and clients. Because the Avistar C3 Conference solution is an all-software platform, it can be easily integrated into Unified Communications and videoconferencing solutions, while being fully virtualized in a server cloud environment. This quickly and dramatically lowers the costs of multiparty videoconferencing while providing a differentiated set of technical features. This is a win/win for our technology partners and enterprise business clients alike," said Stephen Epstein, CMO, Avistar.

About Avistar Communications Corporation

Avistar (OTC: AVSR) delivers the industry's most advanced and proven desktop videoconferencing capabilities to technology partners and end users worldwide. Many leading technology firms such as Citrix, IBM, LifeSize, and Logitech choose Avistar's modular software technology to power their unified communications solutions because it is a more flexible, efficient and smarter alternative. Avistar's innovative software-only, fully virtualized and bandwidth managed technology solves major infrastructure and user challenges associated with enabling video communications between individual employees and/or teams throughout an organization. Companies across a wide variety of industries depend on Avistar's desktop videoconferencing solutions for everyday business communications with deployments ranging in size from 30 to 35,000 users. To learn more about Avistar's industrial, scalable and economical desktop videoconferencing technology, please visit www.avistar.com.

Avistar, the Avistar logo and Avistar C3 are trademarks or registered trademarks of Avistar Communications Corporation.  Citrix®, Citrix Synergy™ and XenServer® are trademarks or registered trademarks of Citrix Systems, Inc. and/or one or more of its subsidiaries, and may be registered in the U.S. Patent and Trademark Office and in other countries. All other trademarks and registered trademarks are property of their respective owners.