RADVISION(R) Exhibits Innovative Developer Tools, Platforms and Applications for Interactive Video Communications Applicable for Current and Next Generation IMS Networks at 3GSM World Congress 2007.

Utilizing the industry's most advanced technologies, the company introduces solutions that are ushering in a new age of interactive video for the 3G mobile and converged network arenas

BARCELONA, Spain -- 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, will be demonstrating its latest range of IMS developer and testing solutions, IMS-ready video platforms and a variety of available interactive video applications for UMTS, CDMA EV-DO, Cable, converged and other IP networks at 3GSM World Congress 2007, Stand 1D01, Hall 1. These solutions and services leverage the power of fixed mobile convergence to get 3G products and devices to market faster and help 3G operators and service providers drive traffic and increase revenues.

IMS Developer Solutions

RADVISION will be showcasing its IMS Express(TM), the complete IMS (IP Multimedia Subsystem) Developer Suite, which meets the needs of IMS client and server developers for the emerging IMS market. RADVISION's IMS Developer Suite includes IMS Protocol Toolkits, IMS Application Server Framework, a Client Framework and testing tools that provide all the necessary signaling and media infrastructure to easily and cost-effectively meet the IMS challenge. RADVISION will be showcasing its ProLab[TM] IMS Test Solution, SIP Server Platform, IMS SIP Developer Suite, DIAMETER and complementary Toolkits and platforms.

3G Interactive Video Platforms and Services

RADVISION is demonstrating a wide array of interactive visual communication applications enabling carriers and ASPs to offer a variety of enhanced video services to their customers no matter where they are - at home, at work or on the move.

Based on the company's robust, carrier-grade SCOPIA[TM] Interactive Video Platform and SCOPIA 3G Video Gateway, a broad range of 3G services will be demoed at the Congress include Mobile Video Conferencing, m-Learning, Video Ringback Clip[TM], PC-to-Mobile[TM], 3G Tubing[TM], Mobile Video Communities, and more.

This year RADVISION demonstrations will include several exciting partner applications that utilize RADVISION's Interactive Video Platform:

* Numintel, a leading Spanish provider of voice IVR solutions will be demonstrating their new products in 3G technology. These include a video-enabled contact center, a mobile surveillance application and dynamic, personalized applications with database interactivity. All these services utilize the SCOPIA Interactive Video Platform's flexible API for interactive video application development.

* Cestel, the leading Spanish provider of telecommunications, ITsolutions and 3G RAD (Rapid Application Development) platforms, will be demonstrating Cestel's iGATE solution to video enable legacy 2G IVR applications and 3GWeb SCE - service creation environment to deliver dynamic multimedia web content to 3G video handsets in real time.

* TEAM COTE D'AZUR, located in the Conference's French Pavilion will allow visitors to remotely control a robot located in Nice. RADVISION will allow visitors to remotely control an innovative surveillance robot with a 3G phone. The mobile user will see what the robot sees, and control, via DTMF, camera panning and robot movement.

* RADVISION and BroadSoft, a leading provider of VoIP application software, will demonstrate interoperability that combines BroadSoft's BroadWorks[R] VoIP application platform with RADVISION's SCOPIA Interactive Video Platform to provide video-enabled VoIP services converged over 3G mobile and landline video phones.

RADVISION's technology, applications and solutions demonstrate the power of interactive video services in current and converged next generation networks.

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.