We do whenever they don't send a CPN in their Q.931 message. In this case they never send CPN, so I'm not even sure the system is capable of doing it. If they do, we would allow it to override, so even a blank would make it effectively private. (Issue = They are trying to make calls private on a per call basis by any station who wants.)
If CPN cannot be manipulated on per call, then we could build two trunk groups on the PRI, one with privacy marked so all calls are private, but the 192 would need to be able to route their "*67" calls to that trunk group (or channels). I haven't asked the guy if he can do that yet.
I'm trying not to just tell the customer, "too bad."
