SCOPIA Desktop V7.0 Delivers H.264 Scalable Video Coding (SVC) , High Definition (HD) Recording and Playback and Enhanced Point-to-Point Calling

TEL AVIV (May 19, 2009) –

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 significant updates to the SCOPIA Desktop platform that serve to continue to enhance and deliver an unequalled desktop video conferencing experience.

SCOPIA Desktop is the award winning desktop video platform that makes it easy to extend video conferences to remote users and allows them 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 platform of video conferencing solutions allows users to share full voice, video and data, with traditional room systems, telepresence systems, mobile devices and desktops all in one conference and can be used by anyone inside or outside the enterprise firewall.

RADVISION is further enhancing this solution with advanced H.264 Scalable Video Coding (SVC) technology. Maintaining high quality calls with participants over unmanaged networks like the public Internet can be problematic because of packet loss and limited bandwidth. SCOPIA Desktop V7.0 with H.264 SVC scalable video coding technology provides very high error resiliency while maintaining interoperability with current room video conferencing systems. RADVISION’s SVC implementation is an extension to the H.264 video standard used by most video conferencing devices today. SCOPIA Desktop users will now receive a high quality experience even in impaired network conditions. H.264 SVC along with integrated firewall and NAT traversal capabilities ensures that network impediments do not interfere with having a good conferencing experience.

SCOPIA Desktop V7.0 will also bring point to point calling through a presence enabled contact list providing the ability to call another desktop user directly without utilizing SCOPIA MCU resources. This new capability provides enhanced scalability supporting thousands of simultaneous calls on a single system. SCOPIA Desktop’s new presence enabled contact list offers fast and simple conference initiation to other SCOPIA users or video conferencing room systems. The presence enabled contact list also delivers seamless transition from point to point to multiparty calls. In addition, SCOPIA Desktop’s integrated firewall and NAT traversal capability has been enhanced to support the new point to point feature.

SCOPIA Desktop’s recording facility has been further enhanced to record video conferences in HD. Users can access a recorded meeting and watch the playback as a media file in full HD. These media files can also be saved and viewed locally on a user’s PC or MAC allowing the user complete flexibility of when and where to view the recording without having to be connected to the network. They can also be converted and played back on mobile devices such as an Apple® iPhone(TM) or iPod®.

Additional SCOPIA Desktop V7.0 enhancements include:

* Automatic CPU awareness supporting netbook to quad processor systems guaranteeing the best quality experience available on each PC processor class.
* Administrator controls to grant different privileges for system guests and authenticated users.
* Per user bandwidth controls allowing administrators to restrict bandwidth of an individual user in addition to a per conference basis.

“SCOPIA Desktop V7.0 brings significant new features and further extends our leadership in the desktop market,” said Boaz Raviv, CEO of RADVISION. “As the desktop market expands, these new features will ensure that our customers can scale their deployments over their existing networks while still maintaining excellent quality video. With these additions we envision adoption of desktop video to accelerate and become a very important part of every enterprise’s communication strategy.”

The Korea Cadastral Survey Corporation (KCSC), Korea’s national surveying agency, recently upgraded their conferencing application to RADVISION’s solution. “This upgrade of the conference system to RADVISION has enabled not only high definition room to room video conferencing, but also direct video communications for all employees, saving us time and travel cost,” said Mr. Chul Soon Song, CIO of KCSC. “This upgrade of video communications will be a foundation to our corporation’s target for “Green Growth and Increased Business Efficiency.”

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 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