Voice Port Configuration Guide, Cisco IOS Release 15M&T
Verifying Analog and Digital Voice-Port Configurations
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Verifying Analog and Digital Voice-Port Configurations

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.

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

Information About Verifying 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 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 Dual-Tone Multifrequency (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 the table below for the appropriate syntax for your platform. For sample output, see the show voice port Command Examples.

    Table 1 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:



    Example:
    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.



    Example:
    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.



    Example:
    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.



    Example:
    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.



    Example:
    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 numberargument. 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.



    Example:
    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

    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 EandM 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 EandM 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 EandM 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