Configuring Voice Ports
Troubleshooting Analog and Digital Voice Port Configurations
VC-115
Cisco IOS Voice, Video, and Fax Configuration Guide
To force a voice port into fax mode and return it to voice mode, use the following commands in
privileged EXEC mode:
Command Purpose
Step 1
Cisco 2600 and 3600 Series Routers Analog Voice Ports
Router# test voice port
slot/subunit/port
switch fax
Cisco 2600 and 3600 Series Routers Digital Voice Ports
Router# test voice port
slot/port:ds0-group
switch fax
Cisco MC3810 Multiservice Concentrators Analog Voice Ports
Router# test voice port
slot/port detector
switch fax
Cisco MC3810 Multiservice Concentrators Digital Voice Ports
Router# test voice port
slot:ds0-group
switch fax
Identifies the voice port you want to test. Enter the
keyword fax to force the voice port into fax mode.
Step 2
Cisco 2600 and 3600 Series Routers Analog Voice Ports
Router# test voice port
slot/subunit/port
switch
disable
Cisco 2600 and 3600 Series Routers Digital Voice Ports
Router# test voice port
slot/port:ds0-group
switch
disable
Cisco MC3810 Multiservice Concentrators Analog Voice Ports
Router# test voice port
slot/port detector
switch
disable
Cisco MC3810 Multiservice Concentrators Digital Voice Ports
Router# test voice port
slot:ds0-group
switch disable
Identifies the voice port on which you want to end
the test. Enter the keyword disable to return the
voice port to voice mode.
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