I was at Avaya labs a several months ago to meet with some VP's and engineers to discuss "future plans" for my company. It appears that in the future Avaya will only sell software and no hardware. When you go to buy a new phone system, you will get a CD and nothing more. You will source your own server to run it on and you will source your own SIP phones to use. This seems kind of strange at this point, but it appears to be where Avaya is going.

[Linked Image from phototiki.com]