Cisco IOS Voice Port Configuration Guide, Release 12.4
Verifying Analog and Digital Voice-Port Configurations
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Table Of Contents

Verifying Analog and Digital Voice-Port Configurations

Information About Verifying Analog and Digital Voice-Port Configurations

How to Verify Analog and Digital Voice-Port Configurations

Examples

show voice port summary Command: Examples

show voice port Command: Examples

show controller Command: Examples

show voice dsp Command: Examples

show voice call summary Command: Examples

show call active voice Command: Example

show call history voice Command: Example


Verifying Analog and Digital Voice-Port Configurations

This chapter describes some basic procedures and specific CLI commands you can use to verify the set up and configuration of the analog and digital voice ports on the routers in your voice network.

Information About Verifying Analog and Digital Voice-Port Configurations

After configuring the voice ports on your router, there are two simple verifications you can use to check the operation of the telephony handset. There are also eight CLI commands you can use to verify proper operation of the configuration.

How to Verify Analog and Digital Voice-Port Configurations

To verify the operability of the analog and digital voice-port configurations on your voice network, complete the following tasks.

SUMMARY STEPS

1. Check for a dial tone.

2. Check for DTMF detection.

3. show voice port summary

4. show voice port

5. show running-config

6. show controller

7. show voice dsp

8. show voice call summary

9. show call active voice

10. show call history voice

DETAILED STEPS

Step 1 Check for a dial tone.

Pick up the handset of an attached telephony device and check for a dial tone.

Step 2 Check for Dual-Tone Multifrequency (DTMF) detection.

If you have dial tone, check for DTMF detection. If the dial tone stops when you dial a digit, then the voice port is probably configured properly.

Step 3 show voice port summary

Use this command to identify the port numbers of voice interfaces installed in your router. For examples of the output, see the "Examples" section.

Step 4 show voice port

Use this command to verify voice-port parameter settings. Refer to Table 2 for the appropriate syntax for your platform. For sample output, see the "show voice port Command: Examples" section.

Table 2 Show Voice Port Command Syntax

Platform
Voice Port Type
Command Syntax

Cisco 1750

Analog

show voice port [slot/port | summary]

Cisco 2600 series
Cisco 3600 series
Cisco 3700 series

Analog

show voice port [slot/port | summary]

Digital

show voice port [slot/port:ds0-group-number | summary]

Cisco MC3810

Analog

show voice port [slot/port | summary]

Digital

show voice port [slot:ds0-group-number | summary]

Cisco AS5300

Digital

show voice port [controller:{ds0-group-number | D}] [summary]

Cisco AS5350
Cisco AS5400
Cisco AS5850

Digital

show voice port [slot/controller:{ds0-group-number | D}] [summary]

Cisco AS5800

Digital

show voice port {shelf/slot/port:ds0-group-number}

Cisco 7200 series

Digital

show voice port {slot/port-adapter:ds0-group-number}

Cisco 7500 series

Digital

show voice port {slot/port-adapter/slot:ds0-group-number}


Step 5 show running-config

Use this command to verify the codec complexity setting for digital T1/E1 connections. If medium complexity is specified for the voice card, the codec complexity command is not displayed. If high complexity is specified, the codec complexity high command is displayed. The following example shows output when high complexity is specified: 

Router# show running-config

.

.

.

hostname router-alpha 

voice-card 0

 codec complexity high 

.

.

.

Step 6 show controller

Use this command to verify that the digital T1/E1 controller is up and that no alarms have been reported, and to display information about clock sources and other controller settings. For output examples, see the "show controller Command: Examples" section. 

Router# show controller {t1 | e1} controller-number

Step 7 show voice dsp

Use this command to display voice-channel configuration information for all DSP channels. For output examples, see the "show voice dsp Command: Examples" section. 

Router# show voice dsp

Step 8 show voice call summary

Use this command to verify the call status for all voice ports. For output examples, see the "show voice call summary Command: Examples" section. 

Router# show voice call summary

Step 9 show call active voice

Use this command to display the contents of the active call table, which shows all of the calls currently connected through the router or concentrator. For output examples, see the "show call active voice Command: Example" section. 

Router# show call active voice

Step 10 show call history voice

Use this command to display the contents of the call history table. To limit the display to the most recent calls connected through this router, use the last keyword and define the number of calls to display with the number argument. To limit the display to a shortened version of the call history table, use the brief keyword. For output examples, see the "show call history voice Command: Example" section. 

Router# show call history voice [last | number | brief]

Examples

This section contains output examples for the following commands on different platforms and for different configurations:

•show voice port summary Command: Examples

•show voice port Command: Examples

•show controller Command: Examples

•show voice dsp Command: Examples

•show voice call summary Command: Examples

•show call active voice Command: Example

•show call history voice Command: Example

show voice port summary Command: Examples

Cisco 3640 Router Analog Voice Port

The following output is from a Cisco 3640 router: 

Router# show voice port summary

                                  IN      OUT

PORT   CH SIG-TYPE   ADMIN OPER STATUS   STATUS   EC

====== == ========== ===== ==== ======== ======== ==

2/0/0  -- e&m-wnk    up    dorm idle     idle     y 

2/0/1  -- e&m-wnk    up    dorm idle     idle     y 

2/1/0  -- fxs-ls     up    dorm on-hook  idle     y 

2/1/1  -- fxs-ls     up    dorm on-hook  idle     y

Cisco MC3810 Digital Voice Port

The following output is from a Cisco MC3810: 

Router# show voice port summary

                                  IN      OUT

PORT   CH SIG-TYPE   ADMIN OPER STATUS   STATUS   EC

====== == ========== ===== ==== ======== ======== ==

0:17   18 fxo-ls     down  down idle     on-hook  y

0:18   19 fxo-ls     up    dorm idle     on-hook  y

0:19   20 fxo-ls     up    dorm idle     on-hook  y

0:20   21 fxo-ls     up    dorm idle     on-hook  y

0:21   22 fxo-ls     up    dorm idle     on-hook  y

0:22   23 fxo-ls     up    dorm idle     on-hook  y

0:23   24 e&m-imd    up    dorm idle     idle     y

1/1    -- fxs-ls     up    dorm on-hook  idle     y

1/2    -- fxs-ls     up    dorm on-hook  idle     y

1/3    -- e&m-imd    up    dorm idle     idle     y

1/4    -- e&m-imd    up    dorm idle     idle     y

1/5    -- fxo-ls     up    dorm idle     on-hook  y

1/6    -- fxo-ls     up    dorm idle     on-hook  y

show voice port Command: Examples

Cisco 3600 Series Router Analog E&M Voice Port

The following output is from a Cisco 3600 series router analog E&M voice port: 

Router# show voice port 1/0


E&M Slot is 1, Sub-unit is 0, Port is 0

 Type of VoicePort is E&M

 Operation State is unknown

 Administrative State is unknown

 The Interface Down Failure Cause is 0

 Alias is NULL

 Noise Regeneration is disabled

 Non Linear Processing is disabled

 Music On Hold Threshold is Set to 0 dBm

 In Gain is Set to 0 dB

 Out Attenuation is Set to 0 dB

 Echo Cancellation is disabled

 Echo Cancel Coverage is set to 16ms

 Connection Mode is Normal

 Connection Number is 

 Initial Time Out is set to 0 s

 Interdigit Time Out is set to 0 s

 Analog Info Follows:

 Region Tone is set for northamerica

 Currently processing none

 Maintenance Mode Set to None (not in mtc mode)

 Number of signaling protocol errors are 0

 Voice card specific Info Follows:

 Signal Type is wink-start

 Operation Type is 2-wire

 Impedance is set to 600r Ohm

 E&M Type is unknown

 Dial Type is dtmf

 In Seizure is inactive

 Out Seizure is inactive

 Digit Duration Timing is set to 0 ms

 InterDigit Duration Timing is set to 0 ms

 Pulse Rate Timing is set to 0 pulses/second

 InterDigit Pulse Duration Timing is set to 0 ms

 Clear Wait Duration Timing is set to 0 ms

 Wink Wait Duration Timing is set to 0 ms

 Wink Duration Timing is set to 0 ms

 Delay Start Timing is set to 0 ms

 Delay Duration Timing is set to 0 ms

Cisco 3600 Series Router Analog FXS Voice Port

The following output is from a Cisco 3600 series router analog Foreign Exchange Service (FXS) voice port: 

Router# show voice port 1/2


Voice port 1/2 Slot is 1, Port is 2

 Type of VoicePort is FXS

 Operation State is UP

 Administrative State is UP

 No Interface Down Failure

 Description is not set

 Noise Regeneration is enabled

 Non Linear Processing is enabled

 In Gain is Set to 0 dB

 Out Attenuation is Set to 0 dB

 Echo Cancellation is enabled

 Echo Cancel Coverage is set to 8 ms

 Connection Mode is normal

 Connection Number is not set

 Initial Time Out is set to 10 s

 Interdigit Time Out is set to 10 s

 Coder Type is g729ar8

 Companding Type is u-law

 Voice Activity Detection is disabled

 Ringing Time Out is 180 s

 Wait Release Time Out is 30 s

 Nominal Playout Delay is 80 milliseconds

 Maximum Playout Delay is 160 milliseconds


 Analog Info Follows:

 Region Tone is set for northamerica

 Currently processing Voice

 Maintenance Mode Set to None (not in mtc mode)

 Number of signaling protocol errors are 0

 Impedance is set to 600r Ohm

 Analog interface A-D gain offset = -3 dB 

 Analog interface D-A gain offset = -3 dB 

 Voice card specific Info Follows:

 Signal Type is loopStart

 Ring Frequency is 20 Hz

 Hook Status is On Hook

 Ring Active Status is inactive

 Ring Ground Status is inactive

 Tip Ground Status is active

 Digit Duration Timing is set to 100 ms

 InterDigit Duration Timing is set to 100 ms

 Ring Cadence are [20 40] * 100 msec

 InterDigit Pulse Duration Timing is set to 500 ms

Cisco 3600 Series Router Digital E&M Voice Port

The following output is from a Cisco 3600 series router digital E&M voice port: 

Router# show voice port 1/0:1

receEive and transMit Slot is 1, Sub-unit is 0, Port is 1

 Type of VoicePort is E&M

 Operation State is DORMANT

 Administrative State is UP

 No Interface Down Failure

 Description is not set

 Noise Regeneration is enabled

 Non Linear Processing is enabled

 Music On Hold Threshold is Set to -38 dBm

 In Gain is Set to 0 dB

 Out Attenuation is Set to 0 dB

 Echo Cancellation is enabled

 Echo Cancel Coverage is set to 8 ms

 Connection Mode is normal

 Connection Number is not set

 Initial Time Out is set to 10 s

 Interdigit Time Out is set to 10 s

 Region Tone is set for US

Cisco AS5300 T1 CAS Voice Port

The following output is from a Cisco AS5300 T1 channel-associated signaling (CAS) voice port: 

Router# show voice port

DS0 Group 1:0 - 1:0

 Type of VoicePort is CAS

 Operation State is DORMANT

 Administrative State is UP

 No Interface Down Failure

 Description is not set

 Noise Regeneration is enabled

 Non Linear Processing is enabled

 Music On Hold Threshold is Set to -38 dBm

 In Gain is Set to 0 dB

 Out Attenuation is Set to 0 dB

 Echo Cancellation is enabled

 Echo Cancel Coverage is set to 8 ms

 Playout-delay Mode is set to default

 Playout-delay Nominal is set to 60 ms

 Playout-delay Maximum is set to 200 ms

 Connection Mode is normal

 Connection Number is not set

 Initial Time Out is set to 10 s

 Interdigit Time Out is set to 10 s

 Call-Disconnect Time Out is set to 60 s

 Ringing Time Out is set to 180 s

 Companding Type is u-law

 Region Tone is set for US

 Wait Release Time Out is 30 s

 Station name None, Station number None

 Voice card specific Info Follows:

 DS0 channel specific status info:

                                IN      OUT

    PORT   CH SIG-TYPE   OPER STATUS   STATUS    TIP     RING

Cisco 7200 Series Router Digital E&M Voice Port

The following output is from a Cisco 7200 series router digital E&M voice port: 

Router# show voice port 1/0:1


receEive and transMit Slot is 1, Sub-unit is 0, Port is 1  << voice-port 1/0:1


 Type of VoicePort is E&M


 Operation State is DORMANT


 Administrative State is UP


 No Interface Down Failure

 Description is not set

 Noise Regeneration is enabled

 Non Linear Processing is enabled

 Music On Hold Threshold is Set to -38 dBm

 In Gain is Set to 0 dB


 Out Attenuation is Set to 0 dB


 Echo Cancellation is enabled


 Echo Cancel Coverage is set to 8 ms

 Connection Mode is normal

 Connection Number is not set

 Initial Time Out is set to 10 s


 Interdigit Time Out is set to 10 s


 Region Tone is set for US

show controller Command: Examples

Cisco 3600 Series Router T1 Controller

The following output is from a Cisco 3600 series router with a T1 controller: 

Router# show controller T1 1/1/0


T1 1/0/0 is up.

  Applique type is Channelized T1

  Cablelength is long gain36 0db

  No alarms detected.

  alarm-trigger is not set

  Framing is ESF, Line Code is B8ZS, Clock Source is Line.

  Data in current interval (180 seconds elapsed):

     0 Line Code Violations, 0 Path Code Violations

     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Cisco MC3810 E1 Controller

The following output is from a Cisco MC3810 with an E1 controller: 

Router# show controller e1 1/0


E1 1/0 is up.

  Applique type is Channelized E1

  Cablelength is short 133

  Description: E1 WIC card Alpha

  No alarms detected.

  Framing is CRC4, Line Code is HDB3, Clock Source is Line Primary.

  Data in current interval (1 seconds elapsed):

     0 Line Code Violations, 0 Path Code Violations

     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Cisco AS5800 T1 Controller

The following output is from a Cisco AS5800 with a T1 controller: 

Router# show controller t1 2


 T1 2 is up.

   No alarms detected.

   Version info of slot 0:  HW: 2, Firmware: 16, PLD Rev: 0

 Manufacture Cookie Info:

  EEPROM Type 0x0001, EEPROM Version 0x01, Board ID 0x42,

  Board Hardware Version 1.0, Item Number 73-2217-4,

  Board Revision A0, Serial Number 06467665,

  PLD/ISP Version 0.0, Manufacture Date 14-Nov-1997.

   Framing is ESF, Line Code is B8ZS, Clock Source is Internal.

   Data in current interval (269 seconds elapsed):

    0 Line Code Violations, 0 Path Code Violations

      0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

      0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

show voice dsp Command: Examples

Digital Voice Port on a Cisco 3640

The following output is from a Cisco 3640 router when a digital voice port is configured: 

Router# show voice dsp


TYPE DSP CH CODEC    VERS STATE STATE   RST AI PORT    TS ABORT   TX/RX-PAK-CNT

==== === == ======== ==== ===== ======= === == ======= == ===== ===============

C549 010 00 g729r8    3.3 busy  idle      0  0 1/015   1     0     67400/85384

         01 g729r8     .8 busy  idle      0  0 1/015   7     0     67566/83623

         02 g729r8        busy  idle      0  0 1/015  13     0     65675/81851

         03 g729r8        busy  idle      0  0 1/015  20     0     65530/83610

C549 011 00 g729r8    3.3 busy  idle      0  0 1/015   2     0     66820/84799

         01 g729r8     .8 busy  idle      0  0 1/015   8     0     59028/66946

         02 g729r8        busy  idle      0  0 1/015  14     0     65591/81084

         03 g729r8        busy  idle      0  0 1/015  21     0     66336/82739

C549 012 00 g729r8    3.3 busy  idle      0  0 1/015   3     0     59036/65245

         01 g729r8     .8 busy  idle      0  0 1/015   9     0     65826/81950

         02 g729r8        busy  idle      0  0 1/015  15     0     65606/80733

         03 g729r8        busy  idle      0  0 1/015  22     0     65577/83532

C549 013 00 g729r8    3.3 busy  idle      0  0 1/015   4     0     67655/82974

         01 g729r8     .8 busy  idle      0  0 1/015  10     0     65647/82088

         02 g729r8        busy  idle      0  0 1/015  17     0     66366/80894

         03 g729r8        busy  idle      0  0 1/015  23     0     66339/82628

C549 014 00 g729r8    3.3 busy  idle      0  0 1/015   5     0     68439/84677

         01 g729r8     .8 busy  idle      0  0 1/015  11     0     65664/81737

         02 g729r8        busy  idle      0  0 1/015  18     0     65607/81820

         03 g729r8        busy  idle      0  0 1/015  24     0     65589/83889

C549 015 00 g729r8    3.3 busy  idle      0  0 1/015   6     0     66889/83331

         01 g729r8     .8 busy  idle      0  0 1/015  12     0     65690/81700

         02 g729r8        busy  idle      0  0 1/015  19     0     66422/82099

         03 g729r8        busy  idle      0  0 1/015  25     0     65566/83852


Router# show voice dsp


TYPE DSP CH CODEC    VERS STATE STATE   RST AI PORT    TS ABORT   TX/RX-PAK-CNT

==== === == ======== ==== ===== ======= === == ======= == ===== ===============

C549 007 00 {medium}  3.3 IDLE  idle      0  0 1/0:1    4     0             0/0

                      .13

C549 008 00 {medium}  3.3 IDLE  idle      0  0 1/0:1    5     0             0/0

                      .13

C549 009 00 {medium}  3.3 IDLE  idle      0  0 1/0:1    6     0             0/0

                      .13

C549 010 00 {medium}  3.3 IDLE  idle      0  0 1/0:1    7     0             0/0

                      .13

C549 011 00 {medium}  3.3 IDLE  idle      0  0 1/0:1    8     0             0/0

                      .13

C549 012 00 {medium}  3.3 IDLE  idle      0  0 1/0:1    9     0             0/0

                      .13

C542 001 01 g711ulaw  3.3 IDLE  idle      0  0 2/0/0          0         512/519

                      .13

C542 002 01 g711ulaw  3.3 IDLE  idle      0  0 2/0/1          0         505/502

                      .13

C542 003 01 g711alaw  3.3 IDLE  idle      0  0 2/1/0          0     28756/28966

                      .13

C542 004 01 g711ulaw  3.3 IDLE  idle      0  0 2/1/1          0         834/838

                      .13

show voice call summary Command: Examples

Cisco MC3810 Analog Voice Port

The following output is from a Cisco MC3810: 

Router# show voice call summary


PORT      CODEC    VAD VTSP STATE            VPM STATE

========= ======== === ===================== ========================

1/1       g729r8    y  S_CONNECT             FXSLS_CONNECT            

1/2       -         -  -                     FXSLS_ONHOOK             

1/3       -         -  -                     EM_ONHOOK                

1/4       -         -  -                     EM_ONHOOK                

1/5       -         -  -                     FXOLS_ONHOOK             

1/6       -         -  -                     FXOLS_ONHOOK

Cisco 3600 Series Router Digital Voice Port

The following output is from a Cisco 3600 series router: 

Router# show voice call summary


PORT      CODEC    VAD VTSP STATE            VPM STATE

========= ======== === ===================== ========================

1/015.1  g729r8    y  S_CONNECT             S_TSP_CONNECT            

1/015.2  g729r8    y  S_CONNECT             S_TSP_CONNECT            

1/015.3  g729r8    y  S_CONNECT             S_TSP_CONNECT            

1/015.4  g729r8    y  S_CONNECT             S_TSP_CONNECT            

1/015.5  g729r8    y  S_CONNECT             S_TSP_CONNECT            

1/015.6  g729r8    y  S_CONNECT             S_TSP_CONNECT            

1/015.7  g729r8    y  S_CONNECT             S_TSP_CONNECT            

1/015.8  g729r8    y  S_CONNECT             S_TSP_CONNECT            

1/015.9  g729r8    y  S_CONNECT             S_TSP_CONNECT            

1/015.10 g729r8    y  S_CONNECT             S_TSP_CONNECT            

1/015.11 g729r8    y  S_CONNECT             S_TSP_CONNECT            

1/015.12 g729r8    y  S_CONNECT             S_TSP_CONNECT

show call active voice Command: Example

Cisco 7200 Series Router

The following output is from a Cisco 7200 series router: 

Router# show call active voice


GENERIC:

SetupTime=94523746 ms

Index=448

PeerAddress=##73072


PeerSubAddress=

PeerId=70000


PeerIfIndex=37

LogicalIfIndex=0

ConnectTime=94524043

DisconectTime=94546241

CallOrigin=1


ChargedUnits=0

InfoType=2

TransmitPackets=6251

TransmitBytes=125020

ReceivePackets=3300

ReceiveBytes=66000

VOIP:

ConnectionId[0x142E62FB 0x5C6705AF 0x0 0x385722B0]

RemoteIPAddress=172.16.235.18


RemoteUDPPort=16580


RoundTripDelay=29 ms


SelectedQoS=best-effort

tx_DtmfRelay=inband-voice

SessionProtocol=cisco

SessionTarget=ipv4:172.16.235.18

OnTimeRvPlayout=63690

GapFillWithSilence=0 ms


GapFillWithPrediction=180 ms


GapFillWithInterpolation=0 ms

GapFillWithRedundancy=0 ms

HiWaterPlayoutDelay=70 ms

LoWaterPlayoutDelay=30 ms

ReceiveDelay=40 ms

LostPackets=0 ms


EarlyPackets=1 ms


LatePackets=18 ms


VAD = disabled


CoderTypeRate=g729r8


CodecBytes=20


cvVoIPCallHistoryIcpif=0

SignalingType=cas

show call history voice Command: Example

Cisco 7200 Series Router

The following output is from a Cisco 7200 series router: 

Router# show call history voice


GENERIC:

SetupTime=94893250 ms

Index=450

PeerAddress=##52258


PeerSubAddress=

PeerId=50000


PeerIfIndex=35

LogicalIfIndex=0

DisconnectCause=10


DisconnectText=normal call clearing.


ConnectTime=94893780

DisconectTime=95015500

CallOrigin=1


ChargedUnits=0

InfoType=2

TransmitPackets=32258

TransmitBytes=645160

ReceivePackets=20061

ReceiveBytes=401220

VOIP:

ConnectionId[0x142E62FB 0x5C6705B3 0x0 0x388F851C]

RemoteIPAddress=172.16.235.18


RemoteUDPPort=16552


RoundTripDelay=23 ms


SelectedQoS=best-effort

tx_DtmfRelay=inband-voice

SessionProtocol=cisco

SessionTarget=ipv4:172.16.235.18

OnTimeRvPlayout=398000

GapFillWithSilence=0 ms


GapFillWithPrediction=1440 ms


GapFillWithInterpolation=0 ms

GapFillWithRedundancy=0 ms

HiWaterPlayoutDelay=97 ms

LoWaterPlayoutDelay=30 ms

ReceiveDelay=49 ms

LostPackets=1 ms

EarlyPackets=1 ms


LatePackets=132 ms


VAD = disabled


CoderTypeRate=g729r8


CodecBytes=20

cvVoIPCallHistoryIcpif=0

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