Avaya is now in the Video Conferencing business! The Radvision "Scopia" video conferencing solution will be a very nice fit for the Avaya line of Unified Communications products. Radvision has been known for a quality Video Conferencing solution and now they now have the AVAYA name behind them.
It is obvious that any current Unified Communications solution will provide for some flavour of Video Conferencing however our experience is that some vendors are not as "Graceful" as others when it comes to things like "ease of use" and "interoperability".
It will be interesting to see how the product evolves and competes with the likes of Cisco and Polycom.