Click to Meet for Microsoft Office Real-Time Collaboration Products and Services

RADVISION Announces General Availability of Click to Meet for Microsoft Office Real-Time Collaboration Products and Services

Click to Meet Now Supports Microsoft Office Live Communications Server, Microsoft Office Communicator and Microsoft Office Live Meeting from a Single Platform

FAIR LAWN, NJ, December 15, 2005 – RADVISION LTD (Nasdaq: RVSN) today announced that its award-winning, video conferencing over IP software, Click to Meet™ now supports Live Communications Server, Communicator, and Live Meeting from a single platform - making it the only enterprise real-time video collaboration solution in the market to fully support all of these Microsoft Office solutions.

Click to Meet for Microsoft Office expands the functionality and reach of Live Communications Server and Live Meeting by providing multi-party voice and video capabilities and by enabling connectivity with any standards-based communications device, making it easy to deploy and integrate into the Microsoft workflow environment.

Click to Meet for Microsoft Office increases productivity, maximizes Microsoft investment and provides cost savings. The combined solution provides users the following unique benefits:

Single implementation: Click to Meet for Microsoft Office enables implementation of a single installation to support both Live Communications Server and Live Meeting environments. Customers can rely on a single purchase from one vendor and eliminate the need for duplicate infrastructure or gateways - freeing up network resources. Click to Meet for Microsoft Office provides a common infrastructure supporting all common collaboration tools being used in an enterprise.
Universal endpoint support: Click to Meet for Microsoft Office supports IP, PSTN, and 3G networks and standards including SIP, H.323, H.320 and 3G-324M. This enables full connectivity to common communications devices used throughout the enterprise, including wired and wireless phones, 3G mobile, handhelds, and desktop and room video conferencing systems.
Distributability and scalability: Click to Meet for Microsoft Office can support many users simultaneously while maintaining consistent high-grade quality of audio and video, regardless of the number of participants in each conference. It streamlines communications without compromising network security measures like firewalls, allowing access from any location inside or outside the enterprise.
Pricing: Costs are reduced significantly due to the single implementation of the product. Its low price per user makes it an enterprise-wide solution that is accessible to all employees and business partners, and will expedite its role as a standard communications platform; much like email and instant messaging.

“We are excited about RADVISION’s new multi-party voice/video product that supports Live Communications Server, Communicator and Live Meeting in a single platform,” said Marc Sanders, Senior Product Manager in the Real-Time Collaboration Group at Microsoft. “Click to Meet for Microsoft Office provides an attractive offering for our customers; we are pleased to see RADVISION enhancing our secure enterprise solutions with the unique value that they provide.”

“We share Microsoft’s vision of the value of integrated communications and are pleased to provide advanced connectivity and conferencing capability for the Microsoft Office real-time collaboration products and services,” said Killko Caballero, Senior Vice President of Enterprise Strategy at RADVISION. “With this technology, we are committed to maintaining our role as the premier multi-party conferencing provider for workflow and collaboration environments.”

About RADVISION

RADVISION (Nasdaq: RVSN) is the industry’s leading provider of high quality, scalable and easy-to-use products and technologies for video conferencing, 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.