High Demand for Avistar C3 Desktop Videoconferencing Solutions as a Result of Partnership...

High Demand for Avistar C3 Desktop Videoconferencing Solutions as a Result of
Partnership Between Avistar and the U.K.'s Touchline Video
Touchline Video's Extensive Channel Network Adds Avistar Technology as Users
See Real Cost and Time Benefits of C3 Standards-Based Desktop Solution

READING, England and SAN MATEO, Calif., Aug. 5 /PRNewswire-FirstCall/ --
Avistar's proven, award-winning C3 desktop videoconferencing solutions are now
available through Touchline Video, a leading specialist distributor of
videoconferencing solutions in the United Kingdom, and its extensive channel
network. Avistar Communications Corporation (Nasdaq: AVSR), a leading provider
of unified visual communications solutions, made the announcement today as the
demand for desktop videoconferencing grows significantly in light of the
increasing costs of travel and companies seeking more effective methods for
improving employee productivity and reducing their impact on the environment.
Darren Innes, General Manager, Worldwide Sales, Avistar, said, "Interest
in the U.K. is high for videoconferencing in general and desktop solutions in
particular. The costs of time, travel, and fuel, along with an overall demand
to reduce environmental impact, are driving the demand. Touchline, already a
well-known name and large distributor for quality brands such as LifeSize, has
opened a new avenue to get Avistar's proven desktop technology into the hands
of customers. They are more than just a 'box' seller; they offer full
technical back-up services, system design, implementation and more, and
complement the technical strengths of Avistar and our product line."
Barry Cross, Managing Director for Touchline Video, said, "Savvy users
want a proven solution with the bells and whistles needed for
videoconferencing on the desktop and connection to their larger room
installations. Our partnership with Avistar, with its 10-plus year history of
desktop videoconferencing installations, has our resellers and users clamoring
for C3 technology as it provides a great, standards-based solution that works
well today and greatly extends our customers' ROI."
C3 delivers unparalleled communication and collaboration functionality
while ensuring industry leading bandwidth management, connectivity and quality
of service, all without requiring additional network capacity. Select key
features include:
-- Digital voice, video communication and collaboration at the desktop or
on the move.
-- Proven quality, reliability and scalability.
-- Dynamic network and bandwidth management technology without requiring
additional network capacity.
-- Interoperability to leverage a customer's existing videoconferencing
room systems, IM and Voice Over IP (VOIP) platform.
-- Integration with business applications such as Microsoft Office or IBM
Lotus products.

Avistar's desktop solutions are available immediately through Touchline
and its resellers.
About Touchline Video UK Ltd
Touchline Video UK Ltd, headquartered near Reading, Berkshire is a
U.K.-wide value-added distributor in the audio, video and web collaboration
industries. Touchline Video has contracts with industry leading vendors to
offer a comprehensive range of video conferencing and complementary products,
from stock to its reseller base. Touchline Video uses its industry-leading
Touchline service division to provide its customers with product and technical
support and both reseller and end-user training. For more information, please
contact Touchline by phone at +44(0)118 970 1313 or visit
http://www.touchlinevideo.co.uk.
About Avistar Communications Corporation
Avistar (Nasdaq: AVSR) creates technology that provides the missing
critical element in unified communications: bringing people in organizations
face-to-face, through enhanced communications, for true collaboration anytime,
anyplace. Its latest product, Avistar C3, draws on more than a decade of
market experience to deliver a single-click desktop videoconferencing and
collaboration experience that moves business communications into a new era.
Available as a stand-alone solution, or integrated with existing unified
communications software from other vendors, Avistar C3 provides users instant
messaging-style ability to initiate video communications across and outside
the enterprise. Bandwidth management enables thousands of users to access
desktop videoconferencing, VoIP and streaming media, without requiring
substantial new network investment or impairing network performance.
Avistar's desktop videoconferencing and collaboration installations are
among the world's largest, including more than 18,000 seats sold in more than
40 countries. Clients report as much as a 20 percent reduction in travel
expense and carbon emissions, increases in productivity, and immeasurably
improved relationship building within their organizations, as well as with
suppliers and customers. Avistar holds a portfolio of 80 patents for
inventions in video and network technology and licenses IP to
videoconferencing, rich-media services, public networking and related
industries. Current licensees include Sony Corporation, Sony Computer
Entertainment Inc. (SCEI), Polycom, Inc., Tandberg ASA, Radvision Ltd.,
LifeSize Communications, Inc. and Emblaze-VCON.
For more information, visit http://www.avistar.com.
Forward Looking Statements
Statements made in this news release that are not purely historical,
including but not limited to statements regarding Avistar's projected
integration of its technology into LifeSize Communication's products and the
licensing and distribution of technology and intellectual property, are
forward-looking statements within the meaning of Section 21E of the Securities
Exchange Act. Such statements are subject to risks and uncertainties that
could cause actual results to differ materially, including such factors, among
others, as the technical challenges associated with technology integration and
the acceptance of the integrated product in the marketplace. As a result of
these and other factors, Avistar expects to experience significant
fluctuations in revenue and operating results, and there can be no assurance
that Avistar will become or remain profitable in the future, or that its
future results will meet expectations. These and other risk factors are
discussed in Avistar's Annual Report on Form 10-K and Quarterly Reports on
Form 10-Q filed with the Securities and Exchange Commission from time to time.
Avistar disclaims any intent or obligation to update these forward-looking
statements.
Copyright (C) 2008 Avistar Communications Corporation. All rights
reserved. Avistar, AvistarVOS, and the Avistar logo are trademarks or
registered trademarks of Avistar Communications Corporation.
SOURCE Avistar Communications Corporation

Margaret Bonilla of Birnbach Communications, +1-603-548-0693,
mbonilla@birnbachcom.com, for Avistar Communications Corporation; or Lisa
Farley of Avistar Communications Corporation, +1-212-949-1137,
lfarley@avistar.com