Basically, is the user license a code number on the side of an IP Phone box? is the code embedded in the phone firmware or do you need to enter it into the router for the phone to register and work? Will our "spare" phones still work on the system without any licenses, and this is what Cisco refers to as an "illegal" setup? (We wouldn't do this of course, I am just very confused and trying to figure out how it works. There appear to be many different beliefs about the subject. Anyone? Thanks!