Configure Analog Voice Port
To configure CME voice port on router, first find out what voice ports is equipped on the router by running the following command:
Router# show voice port summary
FXS: Foreign eXchange Station
FXO: Foreign eXchange Office
For analog FXS port configuration, there are several configuration options:
- signaling:
Ground start: must be configured and typically used when connecting to PBX equipment.
Loop start: is mon by default and typically is used when connecting to telephone, modem or fax.
- Call progress tones: audio signaling that inform the caller how the call is progressing.
- Caller ID information.
Note: each ephone-dn configured using CME will show up as EXFS port.
Configuration example for fax line connected to FXS port
# show voice port summary
Find available FXS port for the fax line.
# config t
voice-port 0/0/0
signal loop start
cptone sg
station-id name 3rd floor fax
station-id number 555-1001
