RADVISION®(Nasdaq: RVSN), a leading provider of video network infrastructure and developer tools for unified visual communications over IP, 3G, and emerging next-generation networks, announced today that Adi Sfadia, CFO, and Robert Romano, Vice President of Enterprise Marketing, will speak at the RBC North American Technology Conference in San Francisco on Thursday, August 7th, from 9:00 to 9:25 a.m. (Pacific).

The live webcast of the presentation can be accessed on the RADVISION web site at www.radvision.com/InvestorEvents/RBC or by clicking on http://www.wsw.com/webcast/rbc91/rvsn/. An audio replay of the event will be available on the RADVISION web site approximately two hours after the live event and accessible for thirty days.

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.