TrySCOPIA portal allows customers to experience SCOPIA Desktop V5.7 High Definition Desktop Video Conferencing

TEL AVIV (December 02, 2008) –

RADVISION® Ltd. (Nasdaq: RVSN), a leading provider of video network infrastructure and developer tools for unified visual communications over IP, 3G, and emerging next-generation IMS networks, today announced the availability of a new version of the award winning SCOPIA Desktop platform with market leading enhancements to high definition video and presentation clarity. SCOPIA Desktop V5.7 can be experienced at a new online demonstration facility in conjunction with its release providing an easy way to experience SCOPIA high definition (HD) quality in audio, video, and H.239 data collaboration.

SCOPIA Desktop makes it easy to fully participate in meetings no matter where users are: at their desk, at a customer location, or in a hotel in another part of the world. This innovative Web-based desktop conferencing solution allows users to bring audio, video, data, traditional room systems and desktop all into one conference and can be used by anyone inside or outside the enterprise firewall. Now with RADVISION’s new demonstration facility, everyone can experience first-hand, the unique conferencing capabilities of SCOPIA Desktop at http://www.radvision.com/tryscopia.

SCOPIA Desktop V5.7 features a new video subsystem that provides unparalleled HD video quality for both motion video and data sharing. SCOPIA Desktop’s previous ability to receive 720p high definition is now augmented with the ability to send HD business quality 720p video using just a standard USB web camera. Now conference participants using room systems or other HD capable desktop clients can view SCOPIA Desktop participants in HD significantly improving the overall quality of the conference. V5.7 also adds HD resolution to data sharing through the use of H.264 data encoding providing clearer presentations while using less bandwidth for the data stream.

The new video subsystem is designed to deliver high definition image quality and low latency while being efficient on processor and network bandwidth utilization. For users demanding the ultimate in desktop video performance, these latest HD capabilities are optimized for Intel’s® advanced processor families and take advantage of multiple instructional threads and increased high definition video rendering capabilities from CPU’s such as the Intel® Core(TM) i7 processor when they are available.

SCOPIA Desktop V5.7 also features a new audio subsystem that provides users a very high quality audio experience resulting from enhanced echo cancellation, added resiliency for network errors, improved automatic gain control and highly effective background noise cancellation. Together the new audio and video quality enhancements with V5.7 deliver a compelling communications solution on a standard PC; well suited for the current economic environment with shrinking budgets and increased productivity demands.

“Video is becoming an essential part of a complete enterprise communications strategy driven in large part by the advent of high definition quality provided by today’s room based conferencing systems,” said Rich Costello, Research Director Enterprise Communications, Gartner, Inc.. “In order for desktop video to become a part of this strategy it is essential for desktop solutions to fully interoperate with room systems and provide the same level of experience at an affordable price,”

“We invite everyone to experience our high definition conference room without walls,” said Boaz Raviv, CEO of RADVISION. “Users can see for themselves how easy high definition video conferencing can be right from their own desktop. Please visit http://www.radvision.com/tryscopia to experience this leading edge technology. The desktop client can be downloaded for free with immediate entry to a public conference room.”

About RADVISION

RADVISION (Nasdaq: RVSN) is the industry’s leading provider of market-proven products and technologies for unified visual communications over IP, 3G and IMS networks. With its complete set of standards-based video networking infrastructure and developer toolkits for voice, video, data and wireless communications, RADVISION is driving the unified communications evolution by combining the power of video, voice, data and wireless – for high definition video conferencing systems, innovative converged mobile services, and highly scalable video-enabled desktop platforms on IP, 3G and emerging next-generation IMS networks. To gain additional insights into our products, technology and opinions, visit blog.radvision.com. For more information about RADVISION, visit http://www.radvision.com/.

This press release contains forward-looking statements that are subject to risks and uncertainties. Factors that could cause actual results to differ materially from these forward-looking statements include, but are not limited to, general business conditions in the industry, changes in demand for products, the timing and amount or cancellation of orders and other risks detailed from time to time in RADVISION’s filings with the Securities Exchange Commission, including RADVISION’s Form 20-F Annual Report. These documents contain and identify other important factors that could cause actual results to differ materially from those contained in our projections or forward-looking statements. Stockholders and other readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date on which they are made. We undertake no obligation to update publicly or revise any forward-looking statement.

Source: RADVISION