I have configured a Cisco call manager express 4.3 on a Cisco 2821 with a VWIC2-1MFT-T1/E1. I have 10 grouped lines from my operator.
The problem is that when someone calls from the outside it appears "from unknown number". I would like to enable the caller id but the command "caller-id enable" dos not exist on the configuration mode of the voice-port 0/2/0:15 (voice port for the VWIC2-1MFT-T1/E1).
Can you help me please to enable the caller id.