Voice Port Testing Enhancements in Cisco 2600 and 3600 Series Routers and MC3810 Series Concentrators

Feature Overview

Benefits

Voice Port Testing Enhancements in Cisco 2600 and 3600 Series Routers and MC3810 Series Concentrators

This document describes new test commands introduced in Cisco IOS Release 12.0(7)XK and supported in Cisco IOS Release 12.1(2)T that expand the capabilities to analyze and troubleshoot voice ports on the Cisco 2600 and 3600 series routers and MC3810 series concentrators.

This document includes the following sections:

Feature Overview

New voice-port testing commands allow the user to force voice ports into specific states for testing.

Benefits

These enhancements expand the voice-port testing and troubleshooting options available on these platforms.

Supported Platforms

Cisco 2600 series
Cisco 3600 series
Cisco MC3810 series

Supported Standards, MIBs, and RFCs

None.

Prerequisites

The voice enhancements described in this document require the use of Cisco IOS Release 12.0(7)XK or 12.1(2)T or later.

Configuration Tasks

These new configuration commands are usable on the Cisco 2600, 3600, and MC3810 series platforms. Differences in usage are noted for individual commands in the command reference section.

Complete the following tasks, as applicable, to test voice ports:

These procedures do not cover other voice-port configuration commands that may be required. To learn more, see the Cisco IOS Multiservice Applications Configuration Guide and the Cisco IOS Multiservice Applications Command Reference for Cisco IOS Release 12.1.

Testing Detector-Related Functions

To test detector-related functions on a voice port, enter the following commands beginning in privileged EXEC mode:

Command Purpose

Step 1

For Cisco 2600 and 3600 series analog voice ports:

router# test voice port slot/subunit/port detector
{m-lead | battery-reversal | loop-current | ring |
tip-ground | ring-ground | ring-trip} {on | off}
For Cisco 2600 and 3600 series digital voice ports:

router# test voice port slot/port:ds0-group detector
{m-lead | battery-reversal | loop-current | ring |
tip-ground | ring-ground | ring-trip} {on | off}
For Cisco MC3810 series analog voice ports:

router# test voice port slot/port detector {m-lead |
battery-reversal | loop-current | ring | tip-ground |
ring-ground | ring-trip} {on | off}
For Cisco MC3810 series digital voice ports:

router# test voice port slot:ds0-group detector
{m-lead | battery-reversal | loop-current | ring |
tip-ground | ring-ground | ring-trip} {on | off}
Identify the voice port you want to test, enter a keyword for the detector under test, and specify whether to force it to the on or off state.

Note Only the keywords applicable to the voice port under test are displayed.

Step 2

Perform applicable tests with the detector in the forced state.

Step 3

For Cisco 2600 and 3600 series analog voice ports:

router# test voice port slot/subunit/port detector
{m-lead | battery-reversal | loop-current | ring |
tip-ground | ring-ground | ring-trip} disable
For Cisco 2600 and 3600 series digital voice ports:

router# test voice port slot/port:ds0-group detector
{m-lead | battery-reversal | loop-current | ring |
tip-ground | ring-ground | ring-trip} disable
For Cisco MC3810 series analog voice ports:

router# test voice port slot/port detector {m-lead |
battery-reversal | loop-current | ring | tip-ground |
ring-ground | ring-trip} disable
For Cisco MC3810 series digital voice ports:

router# test voice port slot:ds0-group detector
{m-lead | battery-reversal | loop-current | ring |
tip-ground | ring-ground | ring-trip} disable
Identify the voice port on which you want to end the test, enter a keyword for the detector under test, and enter the keyword disable to end the forced state.

Note Only the keywords applicable to the voice port under test are displayed.

Loopback Tests

To establish loopbacks on a voice port, enter the following commands beginning in privileged EXEC mode:

Command Purpose

Step 1

For Cisco 2600 and 3600 series analog voice ports:

router# test voice port slot/subunit/port loopback
{local | network}
For Cisco 2600 and 3600 series digital voice ports:

router# test voice port slot/port:ds0-group loopback
{local | network}
For Cisco MC3810 analog voice ports:

router# test voice port slot/port loopback {local |
network}
For Cisco MC3810 digital voice ports:

router# test voice port slot:ds0-group loopback
{local | network}
Identify the voice port you want to test and enter a keyword for the loopback direction.

Note A call must be established on the voice port under test.

Step 2

Perform applicable tests with the loopback established.

Step 3

For Cisco 2600 and 3600 series analog voice ports:

router# test voice port slot/subunit/port
loopback disable
For Cisco 2600 and 3600 series digital voice ports:

router# test voice port slot/port:ds0-group
loopback disable
For Cisco MC3810 analog voice ports:

router# test voice port slot/port loopback disable
For Cisco MC3810 digital voice ports:

router# test voice port slot:ds0-group
loopback disable
Identify the voice port on which you want to end the test and enter the keyword disable to end the loopback.

Tone Injection Tests

To inject a test tone into a voice port, enter the following commands beginning in privileged EXEC mode:

Command Purpose

Step 1

For Cisco 2600 and 3600 series analog voice ports:

router# test voice port slot/subunit/port inject-tone
{local | network} {1000hz | 2000hz | 200hz | 3000hz | 300hz |
3200hz | 3400hz | 500hz | quiet}
For Cisco 2600 and 3600 series digital voice ports:

router# test voice port slot/port:ds0-group
inject-tone {local | network} {1000hz | 2000hz | 200hz |
3000hz | 300hz | 3200hz | 3400hz | 500hz | quiet}
For Cisco MC3810 analog voice ports:

router# test voice port slot/port inject-tone {local
| network} {1000hz | 2000hz | 200hz | 3000hz | 300hz | 3200hz
| 3400hz | 500hz | quiet}
For Cisco MC3810 digital voice ports:

router# test voice port slot:ds0-group inject-tone
{local | network} {1000hz | 2000hz | 200hz | 3000hz | 300hz |
3200hz | 3400hz | 500hz | quiet}
Identify the voice port you want to test and enter keywords for the direction to send the test tone and for the frequency of the test tone.

Note A call must be established on the voice port under test.

Step 2

Perform applicable tests with the test tone activated.

Step 3

For Cisco 2600 and 3600 series analog voice ports:

router# test voice port slot/subunit/port
inject-tone disable
For Cisco 2600 and 3600 series digital voice ports:

router# test voice port slot/port:ds0-group
inject-tone disable
For Cisco MC3810 analog voice ports:

router# test voice port slot/port inject-tone disable
For Cisco MC3810 digital voice ports:

router# test voice port slot:ds0-group
inject-tone disable
Identify the voice port on which you want to end the test and enter the keyword disable to end the test tone.

Testing Relay-Related Functions

To test relay-related functions on a voice port, enter the following commands beginning in privileged EXEC mode:

Command Purpose

Step 1

For Cisco 2600 and 3600 series 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}
For Cisco 2600 and 3600 series 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}
For Cisco MC3810 series analog voice ports:

router# test voice port slot/port relay {e-lead | loop
| ring-ground | battery-reversal | power-denial | ring |
tip-ground} {on | off}
For Cisco MC3810 series 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}
Identify 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 Only the keywords applicable to the voice port under test are displayed.

Step 2

Perform applicable tests with the relay in the forced state.

Step 3

For Cisco 2600 and 3600 series analog voice ports:

router# test voice port slot/subunit/port relay
{e-lead | loop | ring-ground | battery-reversal |
power-denial | ring | tip-ground} disable
For Cisco 2600 and 3600 series 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
For Cisco MC3810 series analog voice ports:

router# test voice port slot/port relay {e-lead | loop
| ring-ground | battery-reversal | power-denial | ring |
tip-ground} disable
For Cisco MC3810 series digital voice ports:

router# test voice port slot:ds0-group relay {e-lead |
loop | ring-ground | battery-reversal | power-denial |
ring | tip-ground} disable
Identify the voice port on which you want to end the test, enter a keyword for the relay under test, and enter the keyword disable to end the forced state.

Note Only the keywords applicable to the voice port under test are displayed.

Fax/Voice Mode Tests

To force a voice port into fax mode or return it to voice mode, enter the following commands, beginning in privileged EXEC mode.

Command Purpose

Step 1

For Cisco 2600 and 3600 series analog voice ports:

router# test voice port slot/subunit/port switch fax
For Cisco 2600 and 3600 series digital voice ports:

router# test voice port slot/port:ds0-group
switch fax
For Cisco MC3810 analog voice ports:

router# test voice port slot/port switch fax
For Cisco MC3810 digital voice ports:

router# test voice port slot:ds0-group switch fax
Identify the voice port you want to test and enter the keyword fax to force the voice port into fax mode.

Step 2

Perform applicable tests with the voice port in fax mode.

Step 3

For Cisco 2600 and 3600 series analog voice ports:

router# test voice port slot/subunit/port
switch disable
For Cisco 2600 and 3600 series digital voice ports:

router# test voice port slot/port:ds0-group
switch disable
For Cisco MC3810 analog voice ports:

router# test voice port slot/port switch disable
For Cisco MC3810 digital voice ports:

router# test voice port slot:ds0-group switch disable
Identify the voice port on which you want to end the test and enter the keyword disable to return the voice port to voice mode.

	Command	Purpose
Step 1	For Cisco 2600 and 3600 series analog voice ports: `router#` test voice port slot/subunit/port switch fax For Cisco 2600 and 3600 series digital voice ports: `router#` test voice port slot/port:ds0-group switch fax For Cisco MC3810 analog voice ports: `router#` test voice port slot/port switch fax For Cisco MC3810 digital voice ports: `router#` test voice port slot:ds0-group switch fax	Identify the voice port you want to test and enter the keyword fax to force the voice port into fax mode.
Step 2	Perform applicable tests with the voice port in fax mode.
Step 3	For Cisco 2600 and 3600 series analog voice ports: `router#` test voice port slot/subunit/port switch disable For Cisco 2600 and 3600 series digital voice ports: `router#` test voice port slot/port:ds0-group switch disable For Cisco MC3810 analog voice ports: `router#` test voice port slot/port switch disable For Cisco MC3810 digital voice ports: `router#` test voice port slot:ds0-group switch disable	Identify the voice port on which you want to end the test and enter the keyword disable to return the voice port to voice mode.

Command Reference

This section documents new commands. All other commands used on these platforms are documented in the Cisco IOS Release 12.1 command reference publications.

test voice port detector

To test detector-related functions on a voice port, use the test voice port detector privileged EXEC command.

For the Cisco 2600 and 3600 series with analog voice ports:

test voice port slot/subunit/port detector {m-lead | battery-reversal | ring | tip-ground | ring-ground | ring-trip} {on | off | disable}

For the Cisco 2600 and 3600 series with digital voice ports:

test voice port slot/port:ds0-group detector {m-lead | battery-reversal | ring | tip-ground | ring-ground | ring-trip} {on | off | disable}

For the Cisco MC3810 series with analog voice ports:

test voice port slot/port detector {m-lead | battery-reversal | ring | tip-ground | ring-ground | ring-trip} {on | off | disable}

For the Cisco MC3810 series with digital voice ports:

test voice port slot:ds0-group detector {m-lead | battery-reversal | ring | tip-ground | ring-ground | ring-trip} {on | off | disable}

Syntax Description Description

For the Cisco 2600 and 3600 series with analog voice ports:

slot/subunit/port

Tests the voice port you specify with the slot/subunit/port designation.

slot specifies a router slot in which a voice network module (NM) is installed. Valid entries are router slot numbers for the particular platform.

subunit specifies a voice interface card (VIC) where the voice port is located. Valid entries are 0 and 1.

port specifies an analog voice port number. Valid entries are 0 and 1.

slot/subunit/port	Tests the voice port you specify with the slot/subunit/port designation. slot specifies a router slot in which a voice network module (NM) is installed. Valid entries are router slot numbers for the particular platform. subunit specifies a voice interface card (VIC) where the voice port is located. Valid entries are 0 and 1. port specifies an analog voice port number. Valid entries are 0 and 1.

For the Cisco 2600 and 3600 series with digital voice ports:

slot/port:ds0-group

Tests the voice port you specify with the slot/port:ds0-group designation.

slot specifies a router slot in which the packet voice trunk network module (NM) is installed. Valid entries are router slot numbers for the particular platform.

port specifies a T1 or E1 physical port in the voice WAN interface card (VWIC). Valid entries are 0 and 1.

ds0-group specifies a T1 or E1 logical port number. Valid entries are 0 to 23 for T1 and 0 to 30 for E1.

slot/port:ds0-group	Tests the voice port you specify with the slot/port:ds0-group designation. slot specifies a router slot in which the packet voice trunk network module (NM) is installed. Valid entries are router slot numbers for the particular platform. port specifies a T1 or E1 physical port in the voice WAN interface card (VWIC). Valid entries are 0 and 1. ds0-group specifies a T1 or E1 logical port number. Valid entries are 0 to 23 for T1 and 0 to 30 for E1.

For the Cisco MC3810 series with analog voice ports:

slot/port

Tests the voice port you specify with the slot/port designation.

slot is the physical slot in which the analog voice module (AVM) is installed. The slot is always 1 for analog voice ports in the Cisco MC3810.

port specifies an analog voice port number. Valid entries are 1 to 6.

slot/port	Tests the voice port you specify with the slot/port designation. slot is the physical slot in which the analog voice module (AVM) is installed. The slot is always 1 for analog voice ports in the Cisco MC3810. port specifies an analog voice port number. Valid entries are 1 to 6.

For the Cisco MC3810 series with digital voice ports:

slot:ds0-group

Tests the voice port you specify with the slot:ds0-group designation.

slot specifies the module (and controller). Valid entries are 0 for the MFT (controller 0) and 1 for the DVM (controller 1).

ds0-group specifies a T1 or E1 logical voice port number. Valid entries are 0 to 23 for T1 and 0 to 30 for E1.

slot:ds0-group	Tests the voice port you specify with the slot:ds0-group designation. slot specifies the module (and controller). Valid entries are 0 for the MFT (controller 0) and 1 for the DVM (controller 1). ds0-group specifies a T1 or E1 logical voice port number. Valid entries are 0 to 23 for T1 and 0 to 30 for E1.

For all platforms:

m-lead

Forces the E&M m-lead detector to the specified state

loop

Forces the FXO loop detector to the specified state

battery-reversal

Forces the FXO battery-reversal detector to the specified state

ring

Forces the FXO ringing detector to the specified state

tip-ground

Forces the FXO tip-ground detector to the specified state

ring-ground

Forces the FXS ring-ground detector to the specified state

ring-trip

Forces the FXS ring-trip detector to the specified state

on

Forces the selected item to the on state

off

Forces the selected item to the off state

disable

Ends the forced state for the selected item

m-lead	Forces the E&M m-lead detector to the specified state
loop	Forces the FXO loop detector to the specified state
battery-reversal	Forces the FXO battery-reversal detector to the specified state
ring	Forces the FXO ringing detector to the specified state
tip-ground	Forces the FXO tip-ground detector to the specified state
ring-ground	Forces the FXS ring-ground detector to the specified state
ring-trip	Forces the FXS ring-trip detector to the specified state
on	Forces the selected item to the on state
off	Forces the selected item to the off state
disable	Ends the forced state for the selected item

Command Modes

Privileged EXEC

Command History

Release Modification

12.0(7)XK

This command was introduced.

12.1(2)T

This command was implemented in the 12.1(2)T release.

Release	Modification
12.0(7)XK	This command was introduced.
12.1(2)T	This command was implemented in the 12.1(2)T release.

Usage Guidelines

Use the test voice port detector privileged EXEC command to force a detector into specific states for testing. For each signaling type (E&M, FXO, FXS), only the applicable keywords are displayed. When you are finished testing, be sure to enter the command with the disable keyword to end the forced state. The disable keyword is available only if a test condition is already activated.

Examples

The following example forces the tip-ground detector to the off state on an FXO voice port (1/3) on a Cisco MC3810, and ends any call in progress:

router# test voice port 1/3 detector tip-ground off

The following example ends the forced off state on an FXO voice port (1/3) on a Cisco MC3810:

router# test voice port 1/3 detector tip-ground disable

The following example forces the ring-trip detector to the on state on an FXS port (0/0/1) on a Cisco 3600 series router, and should start a call:

router# test voice port 0/0/1 detector ring-trip on

The following example ends the forced on state on an FXS port (0/0/1) on a Cisco 3600 series router:

router# test voice port 0/0/1 detector ring-trip disable

Related Commands

Command Description

test voice port loopback

Performs loopback testing on a voice port.

test voice port inject-tone

Injects a test tone into a voice port.

test voice port relay

Tests relay-related functions on a voice port.

test voice port switch

Forces a voice port into fax or voice mode.

Command	Description
test voice port loopback	Performs loopback testing on a voice port.
test voice port inject-tone	Injects a test tone into a voice port.
test voice port relay	Tests relay-related functions on a voice port.
test voice port switch	Forces a voice port into fax or voice mode.

test voice port inject-tone

To inject a test tone into a voice port, use the test voice port inject-tone privileged EXEC command.

For the Cisco 2600 and 3600 series with analog voice ports:

test voice port slot/subunit/port inject-tone {local | network} {1000hz | 2000hz | 200hz | 3000hz | 300hz | 3200hz | 3400hz | 500hz | quiet | disable}

For the Cisco 2600 and 3600 series with digital voice ports:

test voice port slot/port:ds0-group inject-tone {local | network} {1000hz | 2000hz | 200hz | 3000hz | 300hz | 3200hz | 3400hz | 500hz | quiet | disable}

For the Cisco MC3810 series with analog voice ports:

test voice port slot/port inject-tone {local | network} {1000hz | 2000hz | 200hz | 3000hz | 300hz | 3200hz | 3400hz | 500hz | quiet | disable}

For the Cisco MC3810 series with digital voice ports:

test voice port slot:ds0-group inject-tone {local | network} {1000hz | 2000hz | 200hz | 3000hz | 300hz | 3200hz | 3400hz | 500hz | quiet | disable}

Syntax Description

For the Cisco 2600 and 3600 series with analog voice ports:

slot/subunit/port	Tests the voice port you specify with the slot/subunit/port designation. slot specifies a router slot in which a voice network module (NM) is installed. Valid entries are router slot numbers for the particular platform. subunit specifies a voice interface card (VIC) where the voice port is located. Valid entries are 0 and 1. port specifies an analog voice port number. Valid entries are 0 and 1.

For the Cisco 2600 and 3600 series with digital voice ports:

slot/port:ds0-group

Tests the voice port you specify with the slot/port:ds0-group designation.

slot specifies a router slot in which the packet voice trunk network module (NM) is installed. Valid entries are router slot numbers for the particular platform.

port specifies a T1 or E1 physical port in the voice WAN interface card (VWIC). Valid entries are 0 and 1.

ds0-group specifies a T1 or E1 logical port number. Valid entries are 0 to 23 for T1 and 0 to 30 for E1.

slot/port:ds0-group	Tests the voice port you specify with the slot/port:ds0-group designation. slot specifies a router slot in which the packet voice trunk network module (NM) is installed. Valid entries are router slot numbers for the particular platform. port specifies a T1 or E1 physical port in the voice WAN interface card (VWIC). Valid entries are 0 and 1. ds0-group specifies a T1 or E1 logical port number. Valid entries are 0 to 23 for T1 and 0 to 30 for E1.

For the Cisco MC3810 series with analog voice ports:

slot/port	Tests the voice port you specify with the slot/port designation. slot is the physical slot in which the analog voice module (AVM) is installed. The slot is always 1 for analog voice ports in the Cisco MC3810. port specifies an analog voice port number. Valid entries are 1 to 6.

For the Cisco MC3810 series with digital voice ports:

slot:ds0-group	Tests the voice port you specify with the slot:ds0-group designation. slot specifies the module (and controller). Valid entries are 0 for the MFT (controller 0) and 1 for the DVM (controller 1). ds0-group specifies a T1 or E1 logical voice port number. Valid entries are 0 to 23 for T1 and 0 to 30 for E1.

For all platforms:

local

Directs the injected tone toward the local interface (near end)

network

Directs the injected tone toward the network (far end)

1000hz

Injects a 1-kilohertz test tone

2000hz

Injects a 2-kilohertz test tone

200hz

Injects a 200-hertz test tone

3000hz

Injects a 3-kilohertz test tone

300hz

Injects a 300-hertz test tone

3200hz

Injects a 3.2-kilohertz test tone

3400hz

Injects a 3.4-kilohertz test tone

500hz

Injects a 500-hertz test tone

quiet

Injects a quiet tone

disable

Ends test tone

local	Directs the injected tone toward the local interface (near end)
network	Directs the injected tone toward the network (far end)
1000hz	Injects a 1-kilohertz test tone
2000hz	Injects a 2-kilohertz test tone
200hz	Injects a 200-hertz test tone
3000hz	Injects a 3-kilohertz test tone
300hz	Injects a 300-hertz test tone
3200hz	Injects a 3.2-kilohertz test tone
3400hz	Injects a 3.4-kilohertz test tone
500hz	Injects a 500-hertz test tone
quiet	Injects a quiet tone
disable	Ends test tone

Command Modes

Privileged EXEC

Command History

Release Modification

12.0(7)XK

This command was introduced.

12.1(2)T

This command was implemented in the 12.1(2)T release.

Release	Modification
12.0(7)XK	This command was introduced.
12.1(2)T	This command was implemented in the 12.1(2)T release.

Usage Guidelines

Use the test voice port inject-tone privileged EXEC and to inject a test tone or to end a test tone. A call must be established on the voice port under test. When you are finished testing, be sure to enter the disable keyword to end the test tone. The disable keyword is available only if a test condition is already activated.

When you enter the disable keyword, you must enter a direction (either network or local); however, you can enter either direction, regardless of which direction you entered to inject the test tone.

Examples

The following example injects a 1-kilohertz test tone into voice port 1/1, directed toward the network (far end), on a Cisco MC3810:

router# test voice port 1/1 inject-tone network 1khz

The following example removes the test tone from port 0/0/1 on a Cisco 3600 series router:

router# test voice port 0/0/1 inject-tone network disable

router# test voice port 0/0/1 inject-tone local disable

Related Commands

Command Description

test voice port detector

Tests detector-related functions on a voice port

test voice port loopback

Performs loopback testing on a voice port.

test voice port relay

Tests relay-related functions on a voice port.

test voice port switch

Forces a voice port into fax or voice mode.

Command	Description
test voice port detector	Tests detector-related functions on a voice port
test voice port loopback	Performs loopback testing on a voice port.
test voice port relay	Tests relay-related functions on a voice port.
test voice port switch	Forces a voice port into fax or voice mode.

test voice port loopback

To perform loopback testing on a voice port, use the test voice port loopback privileged EXEC command.

For the Cisco 2600 and 3600 series with analog voice ports:

test voice port slot/subunit/port loopback {local | network | disable}

For the Cisco 2600 and 3600 series with digital voice ports:

test voice port slot/port:ds0-group loopback {local | network | disable}

For the Cisco MC3810 series with analog voice ports:

test voice port slot/port loopback {local | network | disable}

For the Cisco MC3810 series with digital voice ports:

test voice port slot:ds0-group loopback {local | network | disable}

Syntax Description

For the Cisco 2600 and 3600 series with analog voice ports:

slot/subunit/port	Tests the voice port you specify with the slot/subunit/port designation. slot specifies a router slot in which a voice network module (NM) is installed. Valid entries are router slot numbers for the particular platform. subunit specifies a voice interface card (VIC) where the voice port is located. Valid entries are 0 and 1. port specifies an analog voice port number. Valid entries are 0 and 1.

For the Cisco 2600 and 3600 series with digital voice ports:

slot/port:ds0-group	Tests the voice port you specify with the slot/port:ds0-group designation. slot specifies a router slot in which the packet voice trunk network module (NM) is installed. Valid entries are router slot numbers for the particular platform. port specifies a T1 or E1 physical port in the voice WAN interface card (VWIC). Valid entries are 0 and 1. ds0-group specifies a T1 or E1 logical port number. Valid entries are 0 to 23 for T1 and 0 to 30 for E1.

For the Cisco MC3810 series with analog voice ports:

slot/port	Tests the voice port you specify with the slot/port designation. slot is the physical slot in which the analog voice module (AVM) is installed. The slot is always 1 for analog voice ports in the Cisco MC3810. port specifies an analog voice port number. Valid entries are 1 to 6.

For the Cisco MC3810 series with digital voice ports:

For all platforms:

local

Forces a loopback at the voice port toward the customer premises equipment (CPE)

network

Forces a loopback at the voice port toward network

disable

Ends forced loopback

Command Modes

Privileged EXEC

Command History

Release Modification

12.0(7)XK

This command was introduced.

12.1(2)T

This command was implemented in the 12.1(2)T release.

Usage Guidelines

Use the test voice port loopback privileged EXEC command to initiate or end a loopback at a voice port. A call must be established on the voice port under test. When you are finished testing, be sure to enter the disable keyword to end the forced loopback. The disable keyword is available only if a test condition is already activated.

Examples

The following example forces a loopback toward the CPE on voice port 1/1 on a Cisco MC3810:

router# test voice port 1/1 loopback local

The following example ends a forced loopback on port 0/0/1 on a Cisco 3600 series router:

router# test voice port 0/0/1 loopback disable

Related Commands

Command Description

test voice port detector

Tests detector-related functions on a voice port.

test voice port inject-tone

Injects a test tone into a voice port.

test voice port relay

Tests relay-related functions on a voice port.

test voice port switch

Forces a voice port into fax or voice mode.

test voice port relay

To test relay-related functions on a voice port, use the test voice port relay privileged EXEC command.

For the Cisco 2600 and 3600 series with analog voice ports:

test voice port slot/subunit/port relay {e-lead | loop | ring-ground | battery-reversal | power-denial | ring | tip-ground} {on | off | disable}

For the Cisco 2600 and 3600 series with digital voice ports:

test voice port slot/port:ds0-group relay {e-lead | loop | ring-ground | battery-reversal | power-denial | ring | tip-ground} {on | off | disable}

For the Cisco MC3810 series with analog voice ports:

test voice port slot/port relay {e-lead | loop | ring-ground | battery-reversal | power-denial | ring | tip-ground} {on | off | disable}

For the Cisco MC3810 series with digital voice ports:

test voice port slot:ds0-group relay {e-lead | loop | ring-ground | battery-reversal | power-denial | ring | tip-ground} {on | off | disable}

Syntax Description

For the Cisco 2600 and 3600 series with analog voice ports:

For the Cisco 2600 and 3600 series with digital voice ports:

For the Cisco MC3810 series with analog voice ports:

For the Cisco MC3810 series with digital voice ports:

For all platforms:

e-lead

Forces the E&M e-lead relay to the specified state

loop

Forces the FXO loop relay to the specified state

ring-ground

Forces the FXO ring-ground relay to the specified state

battery-reversal

Forces the FXO battery-reversal relay to the specified state

power-denial

Forces the FXS power-denial relay to the specified state

ring

Forces the FXS ringing relay to the specified state

tip-ground

Forces the FXS tip-ground relay to the specified state

on

Forces the selected item to the on state

off

Forces the selected item to the off state

disable

Ends the forced state for the selected item

Command Modes

Privileged EXEC

Command History

Release Modification

12.0(7)XK

This command was introduced.

12.1(2)T

This command was implemented in the 12.1(2)T release.

Usage Guidelines

Use the test voice port relay privileged EXEC command to force a relay into specific states for testing. For each signaling type (E&M, FXO, FXS), only the applicable keywords are displayed. When you are finished testing, be sure to enter the disable keyword to end the forced state. The disable keyword is available only if a test condition is already activated.

Examples

The following example forces the E&M e-lead relay to the on state on port 0/0/1 on a Cisco 3600 series router:

router# test voice port 0/0/1 relay e-lead on

The following example ends a forced actuation of the battery-reversal relay on an FXS port (0/0/1) on a Cisco 3600 series router:

router# test voice port 0/0/1 relay battery-reversal disable

Related Commands

Command Description

test voice port detector

Tests detector-related functions on a voice port

test voice port inject-tone

Injects a test tone into a voice port.

test voice port loopback

Performs loopback testing on a voice port.

test voice port switch

Forces a voice port into fax or voice mode.

test voice port switch

To force a voice port into fax mode, use the test voice port switch privileged EXEC command.

For the Cisco 2600 and 3600 series with analog voice ports:

test voice port slot/subunit/port switch {fax | disable}

For the Cisco 2600 and 3600 series with digital voice ports:

test voice port slot/port:ds0-group switch {fax | disable}

For the Cisco MC3810 series with analog voice ports:

test voice port slot/port switch {fax | disable}

For the Cisco MC3810 series with digital voice ports:

test voice port slot:ds0-group switch {fax | disable}

Syntax Description

For the Cisco 2600 and 3600 series with analog voice ports:

For the Cisco 2600 and 3600 series with digital voice ports:

For the Cisco MC3810 series with analog voice ports:

For the Cisco MC3810 series with digital voice ports:

For all platforms:

fax

Forces a switch to fax mode

disable

Ends fax mode; switches back to voice mode

Command Modes

Privileged EXEC

Command History

Release Modification

12.0(7)XK

This command was introduced.

12.1(2)T

This command was implemented in the 12.1(2)T release.

Usage Guidelines

Use the test voice port switch privileged EXEC command to force a voice port into fax mode for testing. 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. After you enter the test voice port switch fax 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.

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.

Examples

The following example forces voice port 1/3 on a Cisco MC3810 into fax mode:

router# test voice port 1/3 switch fax

The following example returns voice port 0/0/1 on a Cisco 3600 series router to voice mode:

router# test voice port 0/0/1 switch disable

Related Commands

Command Description

show voice call

Shows the call processing and protocol state-machine information for a voice port.

show voice call summary

Shows a summary of the call processing and protocol state-machine information for a voice port.

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