RADVISION To Deliver Video Telephony in 3G Mobile Systems With HP; RADVISION's SCOPIA(TM) 3G Video Gateway plus HP Open Call Media Platform speeds time to market for video applications for next generation networks.

FAIR LAWN, N.J. -- RADVISION (Nasdaq: RVSN), a leading provider of multimedia conferencing and communications platforms, has teamed with HP to deliver a service creation platform for video application services in next-generation mobile networks. The field-proven RADVISION SCOPIA(TM) 3G Video Gateway has been successfully integrated with the HP Open Call Media Platform (HP OCMP) Version 3.0.

The combined solution, which can accelerate time-to-market of revenue-generating services, has already been tested and deployed in live third-generation (3G) mobile networks in Europe.

"By working with HP, we can offer a feature rich solution that is interoperable with industry-standard 3G mobile systems around the world," said Eli Doron, RADVISION's CTO. "We are already working with nearly all the Tier 1 operators in countries where 3G has been launched. By integrating with the industry-leading HP OCMP, we can provide a video service creation platform which is now 3G-enabled with the RADVISION SCOPIA 3G Video Gateway."

RADVISION's SCOPIA 3G Video Gateway bridges the gap between 3G mobile networks and the wireline (IP/ISDN) networks that supply the majority of the multimedia content and video telephony services. Designed to be scalable across a wide range of network types and sizes, the SCOPIA 3G Gateway supports real-time bidirectional video telephony and streaming sessions between 3G-324M based mobile handsets or devices and IP or ISDN-based video terminals, RTSP streaming servers, network cameras, and messaging systems.

"HP is committed to working with partners like RADVISION to develop advanced solutions for the interactive mobile media industry," said Ed Verney, worldwide marketing director, OpenCall Business Unit, HP. "The HP OpenCall Media Platform incorporates key assets in video and speech processing, and provides unique media processing capabilities to customers seeking the most advanced interactive mobile media experience."

The HP OpenCall portfolio is a comprehensive suite of carrier grade platforms for developing and deploying next-generation voice, data, and converged services. A key feature of the HP OCMP is the support of real-time, simultaneous blending of voice, data, and multimedia services on networks based on Internet Protocol Multimedia Subsystem (IMS) technology. As an example, wireless users in an IMS network can interact by sharing audio and video content, such as photos, video clips, music and text.

Availability

Integrated versions of RADVISION's SCOPIA products and the HP OCMP are available now worldwide.

About RADVISION

RADVISION (Nasdaq: RVSN) is the industry's leading provider of high quality, scalable and easy-to-use products and technologies for videoconferencing, video telephony, and the development of converged voice, video and data over IP and 3G networks. For more information please visit our website at 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.