RADVISION (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 it has entered into a commercial framework agreement with the TDIA (TD-SCDMA Industry Alliance),

TEL AVIV (October 29, 2007) –

RADVISION (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 it has entered into a commercial framework agreement with the TDIA (TD-SCDMA Industry Alliance), an organization of Chinese enterprises and institutions who are actively committed to advancing TD-SCDMA research and development, production, manufacture and services to advance and promote the TD-SCDMA standard.

Under to the agreement, TDIA members are permitted to purchase the RADVISION 3G-324M Toolkit and will receive support and commercial assistance. “TDIA members are gaining access to the ideal 3G-324M stack in the market, said Mr.Yang Hua, Secretary-General of TDIA. “We believe this agreement will further our goal of advancing the TD-SCDMA standard.”

Over the past year, the number of companies developing 3G-324M handsets using the RADVISION 3G-324M stack to develop TD-SCDMA handsets outside of China has increased significantly, along with the growth in 3G-324M in general. RADVISION has a strong pipeline of users who have initiated licensing arrangements.

“The RADVISION 3G-324M Toolkit is an ideal solution for the Chinese market,” said Tsahi Levent-Levi, Product Manager for the RADVISION Technology Business Unit. “We are proud that the TDIA has chosen RADVISION as a preferred vendor to its members.”

RADVISION’s 3G-324M Toolkit supports the TD-SCDMA standard, as well as UMTS, ISDN, PSTN and other proprietary network standards.

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. 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