We have a Cisco Callmanager Express system. It has a VWIC 1MFT-T1 that connects to the PSTN via a PRI circuit. The main problem is caller-id. The Telco says that they are sending the name on caller-id, but all that comes through is the phone number on a IP phone. On outbound calls the extension of the call is all that is showing up. Example if x7600 makes a call, the caller-id on the receiving phone only says 7600.
The analog lines on the FXS card are displaying caller-id fine. How do I adjust the caller-id for incoming and outgoing calls on the PRI in the phone system?