Datasheet

Configuring Voice Ports
Troubleshooting Analog and Digital Voice Port Configurations
VC-114
Cisco IOS Voice, Video, and Fax Configuration Guide
Relay-Related Function Tests
To test relay-related functions on a voice port, use the following commands in privileged EXEC mode:
Fax/Voice Mode Tests
The test voice port switch fax command forces a voice port into fax mode for testing. After you enter
this command, you can use the show voice call or show voice call summary command to check whether
the voice port is able to operate in fax mode. If no fax data is detected by the voice port, the voice port
remains in fax mode for 30 seconds and then reverts automatically to voice mode.
The disable keyword ends the forced mode switch; however, the fax mode ends automatically after
30 seconds. The disable keyword is available only while the voice port is in fax mode.
Command Purpose
Step 1
Cisco 2600 and 3600 Series Routers Analog Voice Ports
Router# test voice port
slot/subunit/port
relay
{e-lead | loop | ring-ground | battery-reversal |
power-denial | ring | tip-ground} {on | off}
Cisco 2600 and 3600 Series Routers Digital Voice Ports
Router# test voice port
slot/port:ds0-group
relay
{e-lead | loop | ring-ground | battery-reversal |
power-denial | ring | tip-ground} {on | off}
Cisco MC3810 Multiservice Concentrators Analog Voice Ports
Router# test voice port
slot/port detector
relay
{e-lead | loop | ring-ground | battery-reversal |
power-denial | ring | tip-ground} {on | off}
Cisco MC3810 Multiservice Concentrators Digital Voice Ports
Router# test voice port
slot:ds0-group
relay {e-lead |
loop | ring-ground | battery-reversal | power-denial |
ring | tip-ground} {on | off}
Identifies the voice port you want to test. Enter a
keyword for the relay under test and specify
whether to force it to the on or off state.
Note For each signaling type (E&M, FXO,
FXS), only the applicable keywords are
displayed. The disable keyword is
displayed only when a relay is in the
forced state.
Step 2
Cisco 2600 and 3600 Series Routers Analog Voice Ports
Router# test voice port
slot/subunit/port
relay
{e-lead | loop | ring-ground | battery-reversal |
power-denial | ring | tip-ground} disable
Cisco 2600 and 3600 Series Routers Digital Voice Ports
Router# test voice port
slot/port:ds0-group
relay
{e-lead | loop | ring-ground | battery-reversal |
power-denial | ring | tip-ground} disable
Cisco MC3810 Multiservice Concentrators Analog Voice Ports
Router# test voice port
slot/port detector
relay
{e-lead | loop | ring-ground | battery-reversal |
power-denial | ring | tip-ground} disable
Cisco MC3810 Multiservice Concentrators Digital Voice Ports
Router# test voice port
slot:ds0-group
relay {e-lead |
loop | ring-ground | battery-reversal | power-denial |
ring | tip-ground} disable
Identifies the voice port on which you want to end
the test. Enter a keyword for the relay under test,
and the keyword disable to end the forced state.
Note For each signaling type (E&M, FXO,
FXS), only the applicable keywords are
displayed. The disable keyword is
displayed only when a relay is in the
forced state.