Avistar Adds Zultys to Its Growing List of Industry Leading Technology PartnersZultys Licenses the Avistar C3 Media Engine™ – Power

San Mateo, Calif., March 11, 2009 — Avistar Communications Corp. (Nasdaq: AVSR), a leaderin unified visual communications solutions, announced today that Zultys, Inc., a leading providerof all-in-one unified communication solutions, will integrate Avistar’s C3 Media Engine and makeit available to its customers around the world. Through this agreement, Zultys customers willhave the ability to add best-in-class desktop videoconferencing to their unified communicationssystems. Zultys plans to launch the integrated solution in the fall of 2009.Simon Moss, CEO of Avistar, said, “After a thorough and competitive review, Zultys selectedAvistar. Zultys is recognized for its innovative, open standards IP communications andtelephony products. Avistar C3™ will help Zultys open new revenue streams and provideimportant new videoconferencing features that will strengthen its positioning in its marketsworldwide.”“Videoconferencing provides the ROI our customers are looking for as part of their unifiedcommunications solutions, especially in a down economy, where travel is well scrutinized,” saidSteve Morrison, Vice President, Product Marketing, Zultys. “Avistar C3 augments our line ofVoIP and web conferencing products, empowering our customers to collaborate and takeaggressive action to remain competitive.”Avistar C3 Media EngineBased on the award-winning Avistar C3 Desktop™ solution, the Avistar C3 Media Engineprovides a business class desktop videoconferencing experience to technology partners whorequire a visual communications experience within their applications. Business-classvideoconferencing is recognized as a valuable communications tool that provides corporationsserious cost savings, improved productivity and ROI. According to a recent WainhouseResearch study, one third of those polled see the use of videoconferencing accelerating giventoday’s economy, as it reduces the need and cost for travel plus improves collaboration anddecision-making. At a fraction of the cost of typical videoconferencing solutions, Avistar C3makes videoconferencing easy and approachable for both advanced and novice businessusers.About ZultysZultys, Inc. is showing what’s possible for Open Standards IP communications and telephony.Its Open Standards IP technology is the building block for its award-winning IP PBX systems.Zultys develops products that enable companies and organizations in more than 110 countriesand 19 languages to deploy integrated communications systems. For more information visit:www.zultys.com.Avistar and Zultys2About Avistar Communications CorporationAvistar (Nasdaq: AVSR) is a unified visual communications solutions, providing provenbusiness-class technology. Avistar’s desktop videoconferencing installations include more than100,000 committed desktop seats worldwide, bringing together business users anytime andanyplace. Companies such as IBM Corp., Sony Corp., LifeSize Communications, Inc. andPolycom Inc. use Avistar technology to power their unified communications solutions. Avistarworks with leading-edge technology partners and resellers including CityIS, Beyondis, Datamartand Fontel in more than 40 countries. For more information, go to www.avistar.com.###Contact:Angela Smith John CunninghamAvistar Zultys, Inc.+1 650-525-3388 +1 408-328-0450 x116asmith@avistar.com john.cunningham@zultys.comMargaret BonillaBirnbach Communications for Avistar+1 603-548-0693mbonilla@birnbachcom.com

ASK Staffing selects Premise-Based IP Communications System from Zultys

Off Premise Phones and Low Total Cost of Ownership Key in Choosing Converged Phone System

ATLANTA, GA., March 4, 2009 – Zultys, Inc., a Silicon Valley company known for its open standards IP communications and telephony products, today recognized an innovative solution devised by Alliant DataTel, Inc. for a major Georgia staffing company.
ASK Staffing, Inc. ( http://www.askstaffing.com/ ) recently needed to replace its aging telephone system during an office relocation. Alliant DataTel, Atlanta, Georgia ( http://www.goalliant.net/ ), a Zultys value added reseller since August 2004, was selected by Michael Dukes, ASK Staffing’s VP of Operations, to displace an out-dated Avaya Partner phone system with a Zultys MX30 media exchange.

Michael Dukes explains; “Michael Kirchhoff, of Alliant installed our office Category 5e cabling, network switches and the MX30 in a couple of days, held training sessions before we went live on the system, and was here throughout the deployment. He was available to us when we needed assistance. In addition to an enhanced phone system with dynamic features, we have already started installing remote Aastra 53i IP phones. We have an IM (instant messaging) feature that is available to the users of the company. From an administrative standpoint, Michael has been very helpful in answering questions, allowing me to learn the various features. I now can now make changes to the phones, add, edit and delete users without waiting on a tech to arrive on site, which saves us money. We have increased the response time to our customers and improved the efficiency of our employees with this great new technology. As a matter of fact, with being able to assist our clients more efficiently we are already expanding and adding more employees.”

“Our new system simultaneously manages both the data network and our voice communications. I am most excited about the unified management dashboard. Just by looking at the presence icons, I know when anyone on my team is speaking with a client or engaged in a meeting. This is possible anywhere we have an Internet connection, so we are now much better equipped to provide reliable service to our customers.”

“We will realize our nominal initial investment in three to four months. This whole voice-over-IP project came off exactly like Alliant promised. The PSTN voice quality on a Cbeyond PRI is excellent and we could not be happier with our decision in selecting Zultys and Alliant.”
Zultys’ award winning IP PBX systems offer an all-in-one turnkey system with pre-loaded software that does not require additional or external servers. It supports PC, Mac, and Linux equipment. Companies interested in learning more how they might benefit with a Zultys MX may contact Alliant at 1-770-441-9999.

About Alliant DataTel Inc.
Alliant DataTel, Inc., an Atlanta based company is a Zultys dealer. It was founded in 1996 to provide telecommunication and computer networking integration services to small – medium sized companies. The IT professionals at Alliant are committed to providing excellent service, quality products and valuable solution resources that help companies achieve their corporate goals.

Alliant is a one stop VAR from planning to deployment. Whether you are a Fortune 500 firm or an emerging organization, Alliant can help you plan, design and implement a robust IT infrastructure that grows with you. Find out more at http://www.goalliant.net/.

About Zultys Inc.
Zultys, Inc. is showing what’s possible for Open Standards IP communications, telephony and productivity enhancing collaboration. Our Open Standards IP technology is the building block for our award-winning IP PBX systems. Zultys develops products that enable companies and organizations in over 110 countries and 19 languages to deploy integrated communications systems.
Please visit http://www.zultys.com/ for additional information.
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SOURCE: Alliant DataTel, Inc.
Alliant DataTel, Inc.
Michael Kirchhoff, CEO
1.770.441.9999 ext. 307
1.877.GO ALLIANT
michaelk@goalliant.net