Aethra Enriches its Video Communication Product Range With Complete End-to-End Solutions; AETHRA and RADVISION Sign New Agreement to Significantly Expand Relationship and Embark on New Era of Collaboration.

ANCONA, Italy & FAIR LAWN, N.J. -- AETHRA(R) SpA, a leader in the global telecommunications market, announced today that it has broadened its range of video communication products to include powerful infrastructure solutions. This new AETHRA strategy is supported by the technological partnership with RADVISION (Nasdaq:RVSN), 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.

AETHRA now offers a complete range of hardware/software ISDN and IP interactive tools, which include MCUs (Multipoint Conferencing Units) with full video/audio transcoding and SIP/H.323 support; ISDN Gateways for seamless connectivity between different networks and standards; Gatekeeper functionality for call control and dial plan schemes; and Scheduling & Management capabilities for the videoconferencing network infrastructure including network elements and endpoints.

"Thanks to the new products included in our offering, it is possible to overcome the multi-communication challenge in any business environment such as distance learning, as well as in the personal desktop environment", says Marco Viezzoli, AETHRA SpA CEO. "Our product range now encompasses easy-to-use, real time communications in all videoconferencing scenarios. Our goal is to link people worldwide, using sophisticated, high quality videoconferencing systems as well as PC or desktop videoconferencing solutions."

"RADVISION has partnered with AETHRA to provide crucial infrastructure components for effective multipoint visual communications over any network, said Gadi Tamari, RADVISION's CEO. "The combination of AETHRA's high-quality endpoints with RADVISION's IP infrastructure and software application expertise sets the stage for best of breed end-to-end video conferencing solutions for any enterprise business environment."

The wide range of AETHRA video conferencing solutions (including videophones, set-top systems, roll-about as well as distance learning, video surveillance and telemedicine solutions) together with a new series of MCUs (Multipoint Conferencing Units) developed by RADVISION for AETHRA, enables up to 12 sites to concurrently communicate from anywhere in the world.

Now offering H.235 encryption for highly secure video connections as well as additional features including H.239 for adaptive multi-viewing of data and best video quality on all networks, AETHRA is positioned as a leading player in the visual communications market.

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.