We have the same problem in a mixed Cisco EX series/C series/SX20 + Polycom hdx/vsx enviroment, problem came with tc6.1. Because of this problem, I have just upgraded a few units to tc6.1.xSome observations:- The probelem is not only EX90 with VSX/V ...
I have exactly the same problem in a mixed Cisco-Tandberg + Codian + Polycom VSX/HDX enviromnent. I have not investigated deeply why this is a problem, but I suspect it may be because Polycom endpoints have a strange tendency to strip domains during ...