Collaboration and a whole bunch of other stuff. BTW I work @ Cisco Systems.
Well, let's hope its line of phones gets better - the CX 700 IP Phone was one of the main reasons the OCS Implementation in my company failed. All of our senior execs hated the phone, and I have to say I hated it too - the speaker was located in front on the bottom of the phone where it picked up every imaginable desktop noise. To boot firmware updating was terrible, and inconsistent -contributing to call (lack of ) quality issues.Maybe the next gen will be better.....
I think you will see that the new Polycom series of phones for Wave 14 will be a dramtic improvement. Although I don't completely agree with your comments the Tanjay as it was once known did have some design features that not everyone liked. Look for a review of the CX600 soon.
Remember that the CX700 (aka Tanjay) was a phone designed by Microsoft and licensed to Polycom. The overall strategy for the new phones has changed. http://mikestacy.typepad.com/mike-stacys-blog/2010/05/upcoming-polycom-phones-for-communications-server-2010.html
Or as I like to refer to it, the phone designed by software engineers. Mike is correct, and although the software components for the new phones are designed by Microsoft the hardware is Polycom's innovations around voice. So you get the best of both worlds. Solid integration and enduser functionality and Polycoms leading hardware innovations.