(Note: The CUCM, CUC, VG1, and cisco phone is in the same network installed in head office-192.168.50.0)īut when I get incoming calls for the head office (phone-1001) from Voice Gateway 2, it shows 'From unknown number' instead of Caller-ID. When I get incoming calls for the head office (phone-1001) from Voice Gateway 1, it works fine and it shows the Caller-ID. Incoming calls from both Voice Gateways has to show the Caller-ID Incoming calls from both Voice Gateway 1 & 2 have to ring the head office phone (DN:1001) via call handler (auto-attendant) when 1 is pressed.Ģ. Voice gateway 2 is a different network - 192.168.60.0 (Branch Office)ġ. Voice gateway 1, CUCM, and CUC are in the same network - 192.168.50.0 (Head Office) The Caller-ID is enabled in both voice gateway's voice-ports.

Voice mail Hunt pilot & voice mail pilot is: 3000

Voice gateway 2: 192.168.60.1 (Branch Office - has 2 PSTN lines connected to the FXO)Ĭall Handler 1 (Auto Attendant 1) for VG1: 3050 (Press 1 for Head Office, Press 2 for Branch Office)Ĭall Handler 2 (Auto Attendant 2) for VG2: 3060 (Press 1 for Head Office, Press 2 for Branch Office) Voice gateway 1: 192.168.50.1 (Head Office - has 2 PSTN lines connected to the FXO) In my setup, I have CUCM, CUC, two voice gateways, two CTI route points in CUCM, two System call handlers for Auto Attendant in CUC, and each voice gateway has 5 cisco phones. While receiving incoming calls from the PSTN line, instead of Caller-ID I am getting the 'From Unknown Number' message on the cisco phone.

Unknown caller id