AETHRA with RADVISION to Provide New Visual Communications Solutions; The Two Leading Videoconferencing Companies Strengthen Their Strategic Partnership for Unified Communications.

ANCONA, Italy & FAIR LAWN, N.J. -- AETHRA(R), a leader in the global telecommunications market with a full range of videoconferencing solutions, and RADVISION (Nasdaq:RVSN), the industry's leading provider of products and technologies for videoconferencing, video telephony, and the development of converged voice, video and data over IP and 3G networks, announced today that they are broadening their partnership to include RADVISION desktop and 3G solutions in the AETHRA offering. AETHRA will now provide to its customer base an expanded range of visual communication solutions allowing the company to become the new point of reference for Unified Communications.

"AETHRA has now become a real total solution provider for visual communications, expanding its product offering while upholding maximum quality and technological innovation, which reflect both AETHRA and RADVISION philosophies," said Marco Viezzoli, AETHRA SpA CEO. "Our offering guarantees maximum interoperability with other systems, thus providing users with the possibility to choose any kind of visual communication solution available on the market from the same brand. Today, AETHRA can build complex visual communications networks for its clients encompassing desktop, room system and infrastructure technologies including NAT & Firewall traversal and 3G mobile networks connectivity, using solutions under its own single brand.

Boaz Raviv, RADVISION CEO added, "Our relationship with AETHRA has been a solid one and they have been an excellent partner in bringing our products to their customer base. AETHRA and RADVISION share the same vision for the visual communications market which includes high quality and flexible solutions for main stream deployments to the desktop PC or to the 3G video mobile handset, alongside solutions for the traditional conference room. By bringing our desktop videoconferencing and 3G Gateway products to market under the well-known AETHRA name, together we are taking an important step today toward realizing our common vision.

AETHRA Unified Communications, an Integrated Desktop Software Communications Solution, is a scalable communications infrastructure for delivering integrated voice, video, and data collaboration on a single software platform. AETHRA Unified Communications, leading the way in scalability and flexibility, is a must when deploying a desktop conferencing strategy that needs to scale from dozens to hundreds or even thousands of users through a global network. AETHRA Unified Communications is the perfect example of integration, with a single software architecture consisting of the Conference Server, the Conference Client and the Middleware to tie them all together.

AETHRA 3G Gateways are solutions that support real-time, bi-directional video telephony sessions between mobile users and wired line devices such as desktop or room videoconferencing systems. AETHRA 3G Gateways are standards based and provide full interoperability with multimedia communication devices such as gatekeepers, MCUs and any kind of video endpoints.

Today AETHRA offers the full spectrum of videoconferencing solutions over circuit (ISDN), packet (IP) and 3G mobile networks including videoconferencing end-points (rollabout, set-tops, codec, videophones, desktop); MCUs (Multipoint Conferencing Units) with full video/audio transcoding and SIP/H.323 support; ISDN to IP and 3G to IP Gateways for seamless connectivity between different networks; Gatekeeper functionality for call control and dial plan schemes; Scheduling & Management tools.

About AETHRA

AETHRA (www.aethra.com) is a leader in the global telecommunications market, with distribution of its leading-edge products through businesses and more than 40 telephone companies in over 60 countries worldwide. The company develops, manufactures and markets a wide range of high-performance video communications and audio conferencing products, including rollabouts, set-tops, videophones and special solutions dedicated to telemedicine, video surveillance and distance learning. In addition, AETHRA offers multi-audio, video and data services thanks to AETHRA.net, the company specifically focused on multi-conferencing services. AETHRA also develops and markets internationally a variety of telecommunications products, including ISDN and xDSL systems and networking test equipment. These exceptional products have distinguished AETHRA as a leader in the telecommunications industry worldwide for over 30 years, reflecting its expertise in bringing cutting-edge communications technologies to the market.

About RADVISION

RADVISION LTD. (Nasdaq: RVSN) is the industry's leading provider of high quality, scalable and easy-to-use products and technologies for videoconferencing, 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. Revenue from sales of RADVISION toolkits may have been recognized in prior quarters. 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.