Hello, I am brand new to phones in general.
I have a Cisco UC540 phone system. We have 3 phone numbers.
FXO ports 1 and 2 are being used in the phone system. Port 1 is using two pairs, port 2 is using one pair.
Numbers 1 and 3 ring through find (1 is on a pair in FXO-0 and 2 is the only pair on FXO-1)
Number 2 does not ring through at all, nor does it FXO-0 light up. Is there any configuration I am missing to accept the second line on FXO-0?
Thanks for your help