I implement a cucm cluster in a company, they also have a panasonic IP PBX that connects to the PSTN PRI line.
The problem is when the total active h323 connections to PBX reaches to 14-15 sessions, clients get fast busy signal,
I checked the PBX h323 license, it has a 32 concurrent h323 license,
I'd like to know whether the cisco ccm has a limitation on H323 or not?
and if not what could be a possible problem?