Corporate

RADVISION brings advanced conferencing functionality to Microsoft Office Live Communications Server 2005 and Microsoft Office Communicator 2005

RADVISION’s Click to Meet, Combined with Microsoft’s Real-Time Collaboration Platform, Delivers the Most Technologically Advanced Communications Solution Available for the Desktop Today

Orlando, Florida and Fair Lawn, NJ, June 6, 2005 -- RADVISION LTD. (Nasdaq: RVSN) today announced the integration of its award-winning, desktop conferencing solution, Click to Meet™ for Microsoft® Office Live Communications Server 2005, with Microsoft Office Communicator 2005.  RADVISION’S desktop solution integrates with Microsoft’s Real-Time Collaboration platform, providing the most technologically advanced communications and collaboration solution available today. 

The advanced functionality is achieved through integration with the new Communicator SIP-CX conferencing functionality. The combined solution allows a user to initiate a full multiparty audio and video conference with complete conference control directly from within the Communicator client.  It also provides each participant the flexibility to join using his/her preferred device – Communicator, a phone, a video conferencing system or even a mobile 3G videophone.

RADVISION and Microsoft worked together on this solution, which allows IT managers to implement a distributed, software-based, rich media communications solution that integrates with Microsoft’s real-time collaboration platform for a seamless communications experience at the user’s desktop.  The combined solution enables information workers to find, connect, communicate and collaborate in real-time with colleagues, partners and customers regardless of location.

RADVISION will be demonstrating the combined Click to Meet and Microsoft Office Live Communications Server solution this week in Booth #648 at TechEd 2005 in Orlando, FLA.  The demonstration will feature high-quality, fully interactive multipoint voice, video and data conferencing with full connectivity to all voice and video devices.  The solution will also be demonstrated this week in Booth #3187 at InfoComm05 in Las Vegas, NV.

“Microsoft is excited that RADVISION is announcing this Click to Meet voice, video and data conferencing solution running on Live Communications Server 2005.  This combined integrated communications solution demonstrates our shared vision of delivering secure, scalable, real-time productivity tools that will further empower information workers to do their jobs more effectively,” said Marc Sanders, Senior Product Manager in the Real-Time Collaboration Group at Microsoft.  “Our joint customers will be able to share and collaborate on issues, information and ideas with virtually anyone, anytime, from anywhere and on any device.”
 
“The employee desktop is becoming the leading choice for multimedia communications - driven by low cost and easy-to-use devices and software end points brought to market by Microsoft and others,” said Gadi Tamari, CEO of RADVISION. “Microsoft’s continued efforts in delivering rich presence and integrated communications capabilities are taking the industry to a new level and we are proud that we have complemented their solution with our market-proven technology.  We look forward to continuing our work with Microsoft to build secure, scalable real-time communications solutions for the enterprise and service provider.”

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.

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