Customer has NEC 2400 PBX and CM, they have QSIG tie lines between them. Since their majority of their phones are still in NEC side they haven't moved their DID's to PRI in CM, so all the incoming calls still come through NEC. When an inbound call for an IP phone extension comes from Outside/PSTN it hits NEC first then to QSIG tie line to CM.
Now here is the issue for an inbound call from PSTN to an IP phone extension it use to display only calling number (xxx-555-1212) on IP phone in CM 4.1.3 after the upgrade to 6.1.2 it displays "Forwarded for XXXXX" then the calling number (xxx-555-1212) on the bottom of the screen.
I try to change some service parameters nothing helped so left the default values back.
Any idea what got changed in CM 6.1 cause this?
Thanks for your help.