RADVISION(R) ProLab(TM) Testing Suite Deployed by SK Telecom for IOT Testing.

ProLab 3G-324M Video Test Platform Is Designed to Speed Up and Simplify IOT Based on GCF, IMTC and Media Quality Standards and Measurements

TEL AVIV, Israel -- 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, today announced that its ProLab Testing Suite was selected for GCF IOT by SK Telecom, a pioneer in clearing the way to a next generation network arena that includes the development of 4th and 5th generation mobile communication technology.

"Most companies today face numerous challenges when carrying out IOT (Interoperability Testing) on 3G handsets, especially when they need to address video telephony," said Elie Cohen, Product Manager for the ProLab family of testing solutions for RADVISION's Technology Business Unit. "GCF and IMTC test cases contain important new features that complement the broad range of testing capabilities found in the ProLab Testing Suite. This complete solution conducts a wide range of tests, including call generation, monitoring, media quality and video quality."

The 3G video market has grown steadily over the last several years. RADVISION's audio and video quality measurement tools are based on industry standards, utilizing different metrics to achieve unprecedented video quality. A unique degraded video synchronization algorithm results in consistent and accurate results. In addition, the ProLab Testing Suite includes all the latest GCF test cases and constantly updates them as needed. This enables service providers and handset manufacturers to minimize testing cycles, deliver maximum audio and video quality and get products and services to market faster.

The GCF and PTCRB are certification organizations consisting of network operators, terminal manufacturers and accredited test laboratories. The GCF and PTCRB operate independent programs to ensure global conformance of 2G and 3G wireless terminals.

RADVISION's ProLab 3G-324M Test Solution enables 3G testing and plays a critical and vital role in the product development cycle. With hundreds of built-in plug-and-play scripts, test case media files, full 3G-324M simulation testing, and online analysis, ProLab 3G-324M provides a complete testing platform for exhaustive, pre-deployment testing. ProLab 3G-324M is fully compliant with latest industry standards.

RADVISION's ProLab 3G-324M Test Solution is part of RADVISION's ProLab Testing Suite, providing 3G-324M, SIP and IMS, "We believe the IOT Testing and video quality of our product will help boost 3G usage, by providing a high quality of service for the service provider on certified products," added Mr. Cohen. "Video telephony is an important service for early adopters in the multimedia field. RADVISION is committed to being a leader in the industry in terms of quality and value and is completely dedicated to delivering products that meet contract specifications and customer requirements."

For more information, see: http://www.radvision.com/Products/TestingTools/ProLab/

About RADVISION

RADVISION (NASDAQ: RVSN) is the industry's leading provider of market-proven products and technologies for unified visual communications over IP and 3G 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 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.