I have the following issue with a MGCP Gateway running 12.4.15T7 and CM 4.1.3sr4b
Caller ID Outbound for Local calls does not work and displays on remote phone as unknown.
However, Outbound callerID is working for Long Distance calls
Contacted Provider and are forcing local calls to Plan ISND, Type National. I configured my MGCP gateway PRI settings as Calling Type National, Calling Plan ISDN and I could see this update on my debug isdq q931 when executing the outbound call. However, provider continue to see the call as unknown. I change the gateway to H323 and caller ID started working for local, LD, Intl.
For some reason the CM sends the correct calling information to the gateway but it was somehow malformed as provider continue to see the calls as unknown.
The gateway is configured as H323 but will have to be reverted to MGCP at some point.
Any help will be appreciated.