hi. I just want to clarify.
The Polycom license that is listed in the license page is really for the Polycom IP3000 conference phone that is no longer sold. This was sold by 3com and required a license.
If you are running in SIP mode, then Polycom phones will count as a "3rd Party SIP phone" and come out of the Group 1 Device Licenses.
Hope this clarifies things.