ISDN Voice Configuration Guide, Cisco IOS Release 15M&T
Basic ISDN Voice-Interface Configuration
Downloads: This chapterpdf (PDF - 1.57MB) The complete bookPDF (PDF - 4.43MB) | The complete bookePub (ePub - 1.38MB) | Feedback

Basic ISDN Voice-Interface Configuration

Contents

Basic ISDN Voice-Interface Configuration

This chapter describes how to configure ISDN BRI and PRI ports to support voice traffic.

For more information about related Cisco IOS voice features, see the following:

  • "Overview of ISDN Voice Interfaces"
  • Entire Cisco IOS Voice Configuration Library--including library preface and glossary, other feature documents, and troubleshooting documentation--at http://www.cisco.com/en/US/docs/ios/12_3/vvf_c/cisco_ios_voice_configuration_library_glossary/vcl.htm

For a list of references cited in this chapter, see the Additional References.

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.

Prerequisites for Configuring an ISDN Voice Interface

  • Perform the prerequisites that are listed in the "Prerequisites for Configuring ISDN Voice Interfaces" section.
  • Obtain PRI or BRI service and T1 or E1 service from your service provider, as required. Ensure that the BRI lines are provisioned at the switch to support voice calls.
  • Establish a working IP, Frame Relay, or ATM network. Ensure that at least one network module or WAN interface card is installed in the router to provide connection to the LAN or WAN.
  • Complete your company’s dial plan.
  • Establish a working telephony network based on your company’s dial plan and configure the network for real-time voice traffic.
  • Cisco 2600 series and Cisco 3600 series--Install digital T1 or E1 packet-voice trunk network modules, BRI voice interface cards, and other voice interface cards as required on your network.
  • Cisco 7200 series--Install a single-port 30-channel T1/E1 high-density voice port adapter.
  • Cisco MC3810--Install the required digital voice modules (DVMs), BRI voice module (BVM), and multiflex trunk modules.
  • Configure, for all platforms (as required), the following:
    • Voice card and controller settings
    • Serial and LAN interfaces
    • Voice ports
    • Voice dial peers

Restrictions for Configuring an ISDN Voice Interface

Restrictions are described in the "Restrictions for Configuring ISDN Voice Interfaces" section.

Information About ISDN Voice Interfaces

General information about ISDN voice interfaces is presented in the "Information About ISDN Voice Interfaces" section.

How to Configure an ISDN Voice Interface

Configuring a Router for ISDN BRI Voice-Interface Support

This section contains the following procedures:

Configuring BRI NT and TE Interfaces

To configure BRI NT and TE interfaces, perform the following steps.


Note


Set up each channel for either user side or network side.


SUMMARY STEPS

    1.    enable

    2.    configure terminal

    3.    isdn switch-type switch-type

    4.    Cisco MC3810

    5.    no ip address

    6.    isdn overlap-receiving

    7.    isdn twait-disable

    8.    isdn spid1 spid-number [ldn]

    9.    isdn spid2 spid-number [ldn]

    10.    isdn incoming-voice {voice | modem}

    11.    shutdown

    12.    Do one of the following:

    • isdn layer1-emulate user
    • isdn layer1-emulate network

    13.    no shutdown

    14.    network-clock-priority {low | high}

    15.    Cisco MC3810 Only

    16.    Do one of the following:

    • isdn protocol-emulate user
    • isdn protocol-emulate network

    17.    isdn sending-complete

    18.    isdn static-tei tei-number

    19.    isdn point-to-point-setup

    20.    exit

    21.    Cisco MC3810

    22.    Repeat the appropriate steps for the other BRI NT/TE interfaces.


DETAILED STEPS
     Command or ActionPurpose
    Step 1 enable


    Example:
    Router> enable
     

    Enters privileged EXEC mode. Enter your password when prompted.

     
    Step 2 configure terminal


    Example:
    Router# configure terminal
     

    Enters configuration mode.

     
    Step 3 isdn switch-type switch-type


    Example:
    Router(config)# isdn switch-type basic-qsig
     

    Configures the telephone-company ISDN switch type. Table 3 on page 9 shows a list of switch types.

    Note   

    The only switch types currently supported for an NT interface are basic-net3 and basic-qsig.

     
    Step 4 Cisco MC3810


    Example:
                
                  interface bri 
                
                  number
                
              


    Example:
                
    Other Supported Routers
              


    Example:
                
                  interface bri 
                
                  slot/port
                
              


    Example:
    Router(config)# interface bri 1/1
     

    Enters interface configuration mode for the specified port, connector, or interface card number (location of voice module) or slot/port (location of voice network module and voice interface card).

     
    Step 5 no ip address


    Example:
    Router(config-if)# no ip address
     

    Specifies that there is no IP address for this interface.

     
    Step 6 isdn overlap-receiving


    Example:
    Router(config-if)# isdn overlap-receiving
     

    (Optional) Activates overlap signaling to send to the destination PBX. In this mode, the interface waits for possible additional call-control information.

     
    Step 7 isdn twait-disable


    Example:
    Router(config-if)# isdn twait-disable
     

    (Optional) Delays a national ISDN BRI switch for a random length of time before activating the Layer 2 interface at switch startup. Use this command when the ISDN switch type is basic-ni1. Twait time is enabled by default.

     
    Step 8 isdn spid1 spid-number [ldn]


    Example:
    Router(config-if)# isdn spid1 40855501220101
     

    (Optional; TE only) Service-profile identifier (SPID) and optional local directory number for the B1 channel. Currently, only DMS-100 and NI-1 switch types require SPIDs. Although some switch types might support a SPID, Cisco recommends that you set up ISDN service without SPIDs.

     
    Step 9 isdn spid2 spid-number [ldn]


    Example:
    Router(config-if)# isdn spid2 40855501220102
     

    (Optional; TE only) Specifies SPID and optional local directory number for the B2 channel.

     
    Step 10 isdn incoming-voice {voice | modem}


    Example:
    Router(config-if)# isdn incoming-voice voice
     

    Configures the port to treat incoming ISDN voice calls as voice calls that are handled by either a modem or a voice DSP, as directed by the call-switching module.

     
    Step 11 shutdown


    Example:
    Router(config-if)# shutdown
     

    Turns off the port (before setting port emulation).

     
    Step 12Do one of the following:
    • isdn layer1-emulate user
    • isdn layer1-emulate network


    Example:
    Router(config-if)# isdn layer1-emulate user


    Example:
    
    
            


    Example:
              


    Example:
    Router(config-if)# isdn layer1-emulate network
     

    (User side only) Configures Layer 1 port mode emulation and clock status for the user--that is, the TE (clock slave).

    or

    (Network side only) Configures Layer 1 port mode emulation and clock status for the network--that is, the NT (clock master).

     
    Step 13 no shutdown


    Example:
    Router(config-if)# no shutdown
     

    Turns on the port.

     
    Step 14 network-clock-priority {low | high}


    Example:
    Router(config-if)# network-clock-priority low
     

    (Optional; TE only) Sets priority for recovering clock signal from the network NT device for this BRI voice port. Keywords are as follows:

    • high --First priority (default for BRI voice interface cards)
    • low --Low priority (default for BRI voice modules)
    Note   

    Do not use this command if the port is configured as NT in Step 12 .

     
    Step 15 Cisco MC3810 Only


    Example:
                
                  line-power
                
              


    Example:
    Router(config-if)# line-power
     

    Turns on the power supplied from an NT-configured port to a TE device.

     
    Step 16Do one of the following:
    • isdn protocol-emulate user
    • isdn protocol-emulate network


    Example:
    Router(config-if)# isdn protocol-emulate user


    Example:
    
    
            


    Example:
              


    Example:
    Router(config-if)# isdn protocol-emulate network
     

    (User side only) Configures Layer 2 and Layer 3 port mode emulation and clock status for the user--that is, the TE (clock master).

    or

    (Network side only) Configures Layer 2 and Layer 3 port mode emulation and clock status for the network--that is, the NT (clock slave).

     
    Step 17 isdn sending-complete


    Example:
    Router(config-if)# isdn sending-complete
     

    (Optional) Configures the voice port to include the "Sending Complete" information element in the outgoing call-setup message. This command is used in some geographic locations, such as Hong Kong and Taiwan, where the "Sending Complete" information element is required in the outgoing call setup message.

     
    Step 18 isdn static-tei tei-number


    Example:
    Router(config-if)# isdn static-tei 0
     

    (Optional) Configures a static ISDN Layer 2 terminal endpoint identifier (TEI).

     
    Step 19 isdn point-to-point-setup


    Example:
    Router(config-if)# isdn point-to-point-setup
     

    (Optional) Configures the ISDN port to send SETUP messages on the static TEI (point-to-point link).

    Note   

    A static TEI must be configured in order for this command to be effective.

     
    Step 20 exit


    Example:
    Router(config-if)# exit
     

    Exits the current mode.

     
    Step 21 Cisco MC3810


    Example:
                
                  clear interface bri number


    Example:
                
    Other Supported Routers
              


    Example:
                
                  clear interface bri 
                
                  slot/port
                
              


    Example:
    Router# clear interface bri 1/1
     

    (Optional) Resets the specified port, connector, or interface card number (location of voice module) or slot/port (location of voice network module and voice interface card). The interface needs to be reset if the static TEI number was configured in Step 18 .

     
    Step 22 Repeat the appropriate steps for the other BRI NT/TE interfaces. 

    --

     
    What to Do Next


    Note


    To complete voice configuration, set up your voice ports and dial peers.


    Verifying BRI Interfaces

    To verify BRI interfaces, perform the following steps (listed alphabetically).

    SUMMARY STEPS

      1.    show controllers bri number or show controllers bri slot/port

      2.    show interfaces bri

      3.    show isdn {active [serial-number] | history [serial-number]}

      4.    show isdn {memory | status | timers

      5.    show isdn status

      6.    show running-config

      7.    show voice port slot/port | summary


    DETAILED STEPS
      Step 1   show controllers bri number or show controllers bri slot/port

      Use this command to display information about the specified BRI port, connector, or interface card number (location of voice module) or slot/port (location of voice network module and voice interface card).

      Step 2   show interfaces bri

      Use this command to display information about the physical attributes of the BRI B and D channels. In the output, look for the term spoofing , which indicates that the interface presents itself to the Cisco IOS software as operational.

      Step 3   show isdn {active [serial-number] | history [serial-number]}

      Use this command to display current (active keyword) or both historic and current (history keyword) call information for all ISDN interfaces or, optionally, a specific ISDN PRI interface (created and configured as a serial interface). Information displayed includes called number, remote node name, seconds of connect time, seconds of connect time remaining, seconds idle, and advice of charge (AOC) charging time units used during the call.

      Step 4   show isdn {memory | status | timers

      Use this command to display information about memory, status, and Layer 2 and Layer 3 timers.

      Step 5   show isdn status

      Use this command to display the status of all ISDN interfaces, including active layers, timer information, and switch-type settings.

      Step 6   show running-config

      Use this command to display basic router configuration.

      Step 7   show voice port slot/port | summary

      Use this command to display information about BRI voice ports.


      Examples

      This section provides the following output examples:

      Sample Output for the show running-config Command

      The following is sample output from a Cisco 2600 series system. Note that BRI1/0 and BRI1/1 are configured as ISDN user side and BRI2/0 and BRI2/1 are configured as ISDN network side. The table below describes significant fields shown in this output

      Router# show running-config
      Building configuration...
      Current configuration:
      !
      version 12.2
      !
      no service udp-small-servers
      service tcp-small-servers
      !
      hostname Router
      !
      username xxxx password x 11x5xx07
      no ip domain-lookup
      ip host Labhost 172.22.66.11
      ip host Labhost2 172.22.66.12
      ip name-server 172.22.66.21
      !
      .
      .
      .
      interface BRI1/0
      no ip address
      no ip directed-broadcast
      isdn switch-type basic-net3
      isdn overlap-receiving
      isdn T306 30000
      isdn skipsend-idverify
      isdn incoming-voice voice
      !
      interface BRI1/1
      no ip address
      no ip directed-broadcast
      isdn switch-type basic-net3
      isdn overlap-receiving
      isdn T306 30000
      isdn skipsend-idverify
      isdn incoming-voice voice
      !
      interface BRI2/0
      no ip address
      isdn switch-type basic-net3
      isdn overlap-receiving
      isdn protocol-emulate network
      isdn layer1-emulate network
      isdn T306 30000
      isdn sending-complete
      isdn skipsend-idverify
      isdn incoming-voice voice
      !
      interface BRI2/1
      no ip address
      isdn switch-type basic-net3
      isdn overlap-receiving
      isdn protocol-emulate network
      isdn layer1-emulate network
      isdn T306 30000
      isdn sending-complete
      isdn skipsend-idverify
      isdn incoming-voice voice
      !
      .
      .
      .
      

      The following is sample output from a Cisco MC3810 system. The table below describes significant fields shown in this output.

      Router# show running-config
      Building configuration...
      Current configuration:
      !
      version 12.2
      service timestamps debug uptime
      service timestamps log uptime
      no service password-encryption
      !
      hostname Router
      !
      no logging console
      !
      network-clock base-rate 56k
      network-clock-select 2 T1 0
      network-clock-select 3 system(SCB)
      network-clock-select 1 BVM
      ip subnet-zero
      !
      isdn switch-type basic-net3
      isdn voice-call-failure 0
      call rsvp-sync
      !
      voice-card 0
      !
      controller T1 0
       mode atm
       framing esf
       linecode b8zs
      !
      interface BRI1
      no ip address
      isdn switch-type basic-net3
      isdn protocol-emulate network
      isdn layer1-emulate network
      isdn incoming-voice voice
      isdn T306 30000
      isdn skipsend-idverify
      no cdp enable
      !
      interface BRI2
      no ip address
      isdn switch-type basic-net3
      isdn protocol-emulate network
      isdn layer1-emulate network
      isdn incoming-voice voice
      isdn T306 30000
      isdn skipsend-idverify
      no cdp enable
      !
      interface BRI3
      no ip address
      shutdown
      network-clock-priority low
      isdn switch-type basic-net3
      isdn T306 30000
      no cdp enable
      !
      interface BRI4
      no ip address
      shutdown
      network-clock-priority low
      isdn switch-type basic-net3
      isdn T306 30000
      no cdp enable
      !
      .
      .
      .
      

      The table below describes significant fields shown in these outputs.

      Table 1 Significant Fields from the show running-config Command

      Field

      Description

      isdn T306 timer-value

      Value of the T306 timer, in ms.

      An ISDN timer is started when a Q.931 Disconnect message with progress indicator number 8 is sent. The timer is stopped when a ISDN Release/Disconnect message is received from the other end. The call clears on expiration of the T306 timer.

      isdn T310 timer-value

      Value of the T310 timer, in ms.

      An ISDN timer is started when a Q.931 Call Proceeding message is received. The timer is stopped when a Q.931 Alerting/Connect/Disconnect message is received from the other end. The call clears on expiration of the T310 timer.

      Sample Output for the show interfaces bri Command

      The following shows sample output for a Cisco 2610. The table below describes significant fields shown in this output.

      Router# show interfaces bri 1/0
      BRI3/1 is up, line protocol is up (spoofing)
        Hardware is Voice NT or TE BRI
        MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec,
           reliability 255/255, txload 1/255, rxload 1/255
        Encapsulation VOICE, loopback not set
        Last input 00:00:02, output never, output hang never
        Last clearing of "show interface" counters never
        Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
        Queueing strategy: weighted fair
        Output queue: 0/1000/64/0 (size/max total/threshold/drops)
           Conversations  0/0/16 (active/max active/max total)
           Reserved Conversations 0/0 (allocated/max allocated)
        5 minute input rate 0 bits/sec, 0 packets/sec
        5 minute output rate 0 bits/sec, 0 packets/sec
           26110 packets input, 104781 bytes, 0 no buffer
           Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
           0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
           0 packets output, 0 bytes, 0 underruns
           0 output errors, 0 collisions, 5 interface resets
           0 output buffer failures, 0 output buffers swapped out
           9 carrier transitions
      

      The following shows sample output for a Cisco MC3810. The table below describes significant fields shown in this output.

      Router# show interfaces bri 1
      BRI1 is up, line protocol is up (spoofing)
        Hardware is BVM
        MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec,
           reliability 255/255, txload 1/255, rxload 1/255
        Encapsulation HDLC, loopback not set
        Last input 19:32:19, output 19:32:27, output hang never
        Last clearing of "show interface" counters never
        Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
        Queueing strategy: weighted fair
        Output queue: 0/1000/64/0 (size/max total/threshold/drops)
           Conversations  0/1/16 (active/max active/max total)
           Reserved Conversations 0/0 (allocated/max allocated)
        5 minute input rate 0 bits/sec, 0 packets/sec
        5 minute output rate 0 bits/sec, 0 packets/sec
           13282 packets input, 53486 bytes, 0 no buffer
           Received 1 broadcasts, 0 runts, 0 giants, 0 throttles
           0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
           13292 packets output, 53515 bytes, 0 underruns
           0 output errors, 0 collisions, 4 interface resets
           0 output buffer failures, 0 output buffers swapped out
           33 carrier transitions
      
      Table 2 Significant Fields from the show interfaces bri Command

      Field (in alpha order)

      Description

      abort

      Illegal sequence of one bits on a serial interface. This usually indicates a clocking problem between the serial interface and the data link equipment.

      BRI... is {up | down | administratively down}

      Whether the interface hardware is currently active (whether line signal is present) and whether it has been taken down by an administrator.

      broadcasts

      Total number of broadcast or multicast packets received by the interface.

      BW

      Bandwidth of the interface in kbps.

      bytes

      Total number of bytes, including data and media access control (MAC) encapsulation, in the error-free packets sent or received by the system.

      carrier transitions

      Number of times that the carrier detect signal of a serial interface has changed state. Check for modem or line problems if the carrier detect line is changing state often.

      collisions

      Number of collisions. These can occur when you have several devices connected on a multiport line.

      CRC

      Cyclic redundancy checksum generated by the originating station or far-end device does not match the checksum calculated from the data received. On a serial link, CRCs usually indicate noise, gain hits, or other transmission problems on the data link.

      DLY

      Delay of the interface in microseconds.

      encapsulation

      Encapsulation method assigned to interface.

      five-minute input/output rate

      Average number of bits and packets transmitted per second in the last 5 minutes.

      frame

      Number of packets that are received incorrectly having a CRC error and a noninteger number of octets. On a serial line, this is usually the result of noise or other transmission problems.

      giants

      Number of packets that are discarded because they exceed the medium's maximum packet size.

      Hardware is...

      Hardware type.

      ignored

      Number of received packets that are ignored by the interface because the interface hardware ran low on internal buffers. Broadcast storms and bursts of noise can increase the ignored count.

      input errors

      Total number of no buffer, runts, giants, CRCs, frame, overrun, ignored, and abort counts. Other input-related errors can also increment the count, so this sum may not balance with the other counts.

      input/output queue, drops

      Number of packets in output and input queues. Each number is followed by a slash (/), the maximum size of the queue, and the number of packets dropped due to a full queue.

      interface resets

      Number of times that an interface has been completely reset. This can happen if packets queued for transmission were not sent within several seconds. On a serial line, this can be caused by a malfunctioning modem that is not supplying the transmit clock signal or by a cable problem. If the system recognizes that the carrier detect line of a serial interface is up, but the line protocol is down, it periodically resets the interface in an effort to restart it. Interface resets can also occur when an interface is looped back or shut down.

      Internet address is...

      IP address and subnet mask, followed by packet size.

      keepalive

      Whether keepalives are set.

      last input

      Number of hours, minutes, and seconds since the last packet was successfully received by an interface. Useful for knowing when a nonfunctioning interface failed.

      line protocol is {up | down | administratively down}

      Whether the software processes that handle the line protocol consider the line usable (that is, whether keepalives are successful).

      load

      Load on the interface as a fraction of 255 (255/255 is completely saturated), calculated as an exponential average over 5 minutes.

      loopback

      Whether loopback is set.

      MTU

      Maximum transmission unit of the interface.

      no buffer

      Number of received packets that are discarded because there was no buffer space in the main system. Compare with ignored count. Broadcast storms on Ethernets and bursts of noise on serial lines are often responsible for no input buffer events.

      output

      Number of hours, minutes, and seconds since the last packet was successfully transmitted by an interface.

      output errors

      Sum of all errors that prevented the final transmission of datagrams out of the interface being examined. Note that this may not balance with the sum of the enumerated output errors, because some datagrams may have more than one error, and others may have errors that do not fall into any of the specifically tabulated categories.

      output hang

      Number of hours, minutes, and seconds (or never) since the interface was last reset because of a transmission that took too long. When the number of hours in any of the "last" fields exceeds 24 hours, the number of days and hours is printed. If that field overflows, asterisks (**) are printed.

      output/input queue, drops

      Number of packets in output and input queues. Each number is followed by a slash (/), the maximum size of the queue, and the number of packets dropped due to a full queue.

      overrun

      Number of times that the serial receiver hardware was unable to hand received data to a hardware buffer because the input rate exceeded the receiver's ability to handle the data.

      packets input/output

      Total number of error-free packets received or sent by the system.

      rely

      Reliability of the interface as a fraction of 255 (255/255 is 100 percent reliability), calculated as an exponential average over 5 minutes.

      restarts

      Number of times that the controller was restarted because of errors

      runts

      Number of packets that are discarded because they are smaller than the medium’s minimum packet size.

      underruns

      Number of times that the transmitter has been running faster than the router can handle. This may never be reported on some interfaces.

      Troubleshooting Tips

      Configuring ISDN PRI Voice-Interface Support

      This section contains the following procedures:

      Configuring PRI Interfaces

      To configure PRI interfaces, perform the following steps.

      SUMMARY STEPS

        1.    enable

        2.    configure terminal

        3.    isdn switch-type switch-type

        4.    Cisco AS5300

        5.    description string

        6.    framing esf

        7.    linecode {ami | b8zs | hdb3}

        8.    pri-group timeslots range

        9.    exit

        10.    Cisco AS5300

        11.    isdn incoming-voice modem

        12.    description string

        13.    isdn-bchan-number-order {ascending | descending}

        14.    exit


      DETAILED STEPS
         Command or ActionPurpose
        Step 1 enable


        Example:
        Router> enable
         

        Enters privileged EXEC mode. Enter your password when prompted.

         
        Step 2 configure terminal


        Example:
        Router# configure terminal
         

        Enters configuration mode.

         
        Step 3 isdn switch-type switch-type


        Example:
        Router(config)# isdn switch-type basic-qsig
         

        Configures the telephone company ISDN switch type. Table 3 on page 9 shows a list of switch types.

        Note   

        The only switch types currently supported for an NT interface are basic-net3 and basic-qsig.

         
        Step 4 Cisco AS5300


        Example:
                    
                      controller {t1 | e1}  0


        Example:
                    
        Cisco AS5800 (T1 card)
                  


        Example:
                    
                      controller t1 1/0/0


        Example:
                    
        Cisco AS5800 (T3 card)
                  


        Example:
                    
                      controller t1 1/0/0 : 1


        Example:
        Router(config)# controller t1 1/0/0
         

        Enters T1/E1 controller configuration mode for the specified (as appropriate) dial shelf, slot, port (or T3 port), and timeslot as follows:

        • Cisco AS5300: T1 0 or E1 0 controller
        • Cisco AS5800 (T1 card): T1 0 controller
        • Cisco AS5800 (T3 card): T1 1 controller
         
        Step 5 description string


        Example:
        Router(config-if)# description interface01
         

        Includes a specific description about the digital signal processor (DSP) interface.

         
        Step 6 framing esf


        Example:
        Router(config-controller)# framing esf
         

        Defines the framing characteristics.

         
        Step 7 linecode {ami | b8zs | hdb3}


        Example:
        Router(config-controller)# linecode ami
         

        Sets the line-encoding method to match that of your telephone-company service provider. Keywords are as follows:

        • ami --Alternate mark inversion (AMI), valid for T1 or E1 controllers. Default for T1 lines.
        • b8zs --B8ZS, valid for T1 controllers only.
        • hdb3 --High-density bipolar 3 (hdb3), valid for E1 controllers only. Default for E1 lines.
         
        Step 8 pri-group timeslots range


        Example:
        Router(config-controller)# pri-group timeslots 1-23
         

        Specifies PRI on the specified or timeslots that make up the PRI group. Maximum T1 range: 1 to 23. Maximum E1 range: 1 to 31. Separate low and high values with a hyphen.

        Note   

        You can configure the PRI group to include all available timeslots, or you can configure a select group of timeslots for the PRI group.

         
        Step 9 exit


        Example:
        Router(config-controller)# exit
         

        Exits the current mode.

         
        Step 10 Cisco AS5300


        Example:
                    
                      interface serial 
                    
                      0:
                    
                    
                      channel-number
                    
                  


        Example:
                    
        Cisco AS5800
                  


        Example:
                    
                      interface serial 
                    
                      1/0:
                    
                    
                      channel-number
                    
                  


        Example:
        Router(config)# interface serial 0:23
         

        Enters interface configuration mode for the specified PRI slot/port and D-channel ISDN interface. D-channel ISDN interface is (for T1) 23 and (for E1) 15.

         
        Step 11 isdn incoming-voice modem


        Example:
        Router(config-if)# isdn incoming-voice modem
         

        Enables incoming ISDN voice calls.

        The modem keyword specifies that incoming voice calls are passed over to digital modems, where they negotiate the appropriate modem connection with the far-end modem. Its use here is required.

         
        Step 12 description string


        Example:
        Router(config-if)# description interface02
         

        Includes a specific description about the digital signal processor (DSP) interface.

         
        Step 13 isdn-bchan-number-order {ascending | descending}


        Example:
        Router(config-if)# isdn-bchan-number-order descending
         

        Configures an ISDN PRI interface to make outgoing call selection in ascending or descending order--that is, to select the lowest or highest available B channel starting at either channel B1 (ascending) or channel B23 for a T1 and channel B30 for an E1 (descending). Default: descending.

        Note   

        Before configuring ISDN PRI on your router, check with your service vendor to determine if ISDN trunk call selection is configured for ascending or descending order. A mismatch between router and switch causes the switch to send an error message stating that the channel is not available.

         
        Step 14 exit


        Example:
        Router(config-if)# exit
         

        Exits the current mode.

         

        Configuring PRI Voice Ports

        Under most circumstances, default voice-port command values are adequate to configure voice ports to transport voice data over your existing IP network. However, because of the inherent complexities of PBX networks, you might need to configure specific voice-port values, depending on the specifications of the devices in your network.

        Verifying PRI Interfaces

        To verify PRI interfaces, perform the following steps (listed alphabetically).

        SUMMARY STEPS

          1.    show isdn {active [serial-number] | history [serial-number]}

          2.    show isdn status

          3.    show vfc slot version

          4.    show voice port slot/port | summary


        DETAILED STEPS
          Step 1   show isdn {active [serial-number] | history [serial-number]}

          Use this command to display current (active keyword) or both historic and current (history keyword) call information for all ISDN interfaces or, optionally, a specific ISDN PRI interface (created and configured as a serial interface). Information displayed includes called number, remote node name, seconds of connect time, seconds of connect time remaining, seconds idle, and advice of charge (AOC) charging time units used during the call.

          Step 2   show isdn status

          Use this command to display the status of all ISDN interfaces, including active layers, timer information, and switch-type settings.

          Step 3   show vfc slot version

          Use this command to display the version of software residing on the voice feature card in the specified slot.

          Step 4   show voice port slot/port | summary

          Use this command to display configuration information about a specific voice port.


          Troubleshooting Tips

          • Verify that you have dial tone and connectivity.
          • If you have not configured your device to support Direct Inward Dialing (DID), do the following:
          • Dial in to the router and verify that you have dial tone.
          • Enter a dual-tone multifrequency (DTMF) digit. If dial tone stops, you have verified two-way voice connectivity with the router.
          • If you have trouble connecting a call and suspect that the problem is associated with voice-port configuration, do the following:
          • Confirm connectivity by pinging the associated IP address.

          Note


          For more information, see the Cisco IOS IP Configuration Guide chapter on configuring IP.


          1. Determine if the voice feature card (VFC) is installed correctly.

          Note


          For more information, see the instructions that came with your voice network module.


          1. Ensure that your (T1-line) a-law or (E1-line) mu-law setting is correct.
          2. If dialing cannot occur, use the debug isdn q931 command to check the ISDN configuration.

          Note


          For T1 troubleshooting information, see http:/​/​www.cisco.com/​en/​US/​tech/​tk713/​tk628/​technologies_​tech_​note09186a00800a5f40.shtml


          Configuring QSIG Support

          This section contains the following procedures:

          Configure Global QSIG Support for BRI or PRI

          To configure global QSIG support for BRI or PRI, perform the following steps.


          Note


          For additional guidance on switch-type configuration, see the "ISDN Switch Types for Use with QSIG" section on page 9 .


          SUMMARY STEPS

            1.    enable

            2.    configure terminal

            3.    BRI on Cisco MC3810, Cisco 2600 Series, and Cisco 3600 Series

            4.    BRI or PRI on Cisco 7200 Series

            5.    BRI or PRI on Cisco 7200 Series

            6.    exit


          DETAILED STEPS
             Command or ActionPurpose
            Step 1 enable


            Example:
            Router> enable
             

            Enters privileged EXEC mode. Enter your password when prompted.

             
            Step 2 configure terminal


            Example:
            Router# configure terminal
             

            Enters configuration mode.

             
            Step 3 BRI on Cisco MC3810, Cisco 2600 Series, and Cisco 3600 Series


            Example:
                        
                          isdn switch-type basic-qsig
                      


            Example:
                        
            PRI on Any Supported Router
                      


            Example:
                        
                          isdn switch-type primary-qsig
                      


            Example:
            Router(config)# isdn switch-type basic-qsig
             

            (Optional) Configures the global ISDN switch type to support QSIG signaling. Table 2 on page 9 shows a list of switch types.

            Note   

            You can configure all interfaces at once by using this command in global configuration mode. Or you can configure one interface at a time by using this command in interface configuration mode.

             
            Step 4 BRI or PRI on Cisco 7200 Series


            Example:
                        
                          dspint dspfarm slot/port


            Example:
            Router(config)# dspint dspfarm 1/1
             

            Configures the digital signal processor (DSP) farm at the specified slot/port.

             
            Step 5 BRI or PRI on Cisco 7200 Series


            Example:
                        
                          card type {t1 | e1} slot


            Example:
            Router(config)# card type t1 0
             

            Configures card type (T1 or E1) at the specified slot.

             
            Step 6 exit


            Example:
            Router(config)# exit
             

            Exits the current mode.

             

            Configure Controllers for QSIG over PRI

            To configure controllers for QSIG over PRI, perform the following steps.


            Note


            Steps in this section apply to PRI only, and not to BRI.


            SUMMARY STEPS

              1.    enable

              2.    configure terminal

              3.    Cisco MC3810

              4.    pri-group timeslots range

              5.    exit


            DETAILED STEPS
               Command or ActionPurpose
              Step 1 enable


              Example:
              Router> enable
               

              Enters privileged EXEC mode. Enter your password when prompted.

               
              Step 2 configure terminal


              Example:
              Router# configure terminal
               

              Enters configuration mode.

               
              Step 3 Cisco MC3810


              Example:
                          
                            controller {t1 | e1} controller-number


              Example:
                          
                            
                              Other Supported Routers
                          
                        


              Example:
                          
                            controller {t1 | e1} slot/port


              Example:
              Router(config)# controller t1 1/1
               

              Enters T1 or E1 controller configuration mode for the specified controller number o r slot/port.

              Note   

              Cisco MC3810 supports QSIG only on controller 1.

               
              Step 4 pri-group timeslots range


              Example:
              Router(config-controller)# pri-group timeslots 1-23
               

              Specifies PRI on the specified or timeslots that make up the PRI group. Maximum T1 range: 1-23. Maximum E1 range: 1-31. Separate low and high values with a hyphen.

              Note   

              You can configure the PRI group to include all available timeslots, or you can configure a select group of timeslots for the PRI group.

               
              Step 5 exit


              Example:
              Router(config-controller)# exit
               

              Exits the current mode.

               

              Configure PRI Interfaces for QSIG

              To configure PRI interfaces for QSIG, perform the following steps.


              Note


              Set up each channel for either user side or network side.


              SUMMARY STEPS

                1.    enable

                2.    configure terminal

                3.    Cisco MC3810

                4.    isdn switch-type primary-qsig

                5.    isdn contiguous-bchan

                6.    Do one of the following:

                • isdn protocol-emulate user
                • isdn protocol-emulate network

                7.    isdn overlap-receiving

                8.    isdn network-failure-cause value

                9.    exit


              DETAILED STEPS
                 Command or ActionPurpose
                Step 1 enable


                Example:
                Router> enable
                 

                Enters privileged EXEC mode. Enter your password when prompted.

                 
                Step 2 configure terminal


                Example:
                Router# configure terminal
                 

                Enters configuration mode.

                 
                Step 3 Cisco MC3810


                Example:
                            
                              interface serial 
                            
                              1:
                            
                            
                              channel-number
                            
                          


                Example:
                            
                Other Supported Routers
                          


                Example:
                            
                              interface serial slot/port : channel-number


                Example:
                Router(config)# interface serial 1/1:23
                 

                Enters interface configuration mode for the specified PRI slot/port and D-channel ISDN interface. D-channel ISDN interface is (for T1) 23 and (for E1) 15.

                 
                Step 4 isdn switch-type primary-qsig


                Example:
                Router(config-if)# isdn switch-type primary-qsig
                 

                If you did not configure the global PRI ISDN switch type for QSIG support in global configuration mode, configures the interface ISDN switch type to support QSIG signaling.

                Conditions that apply to this command in global configuration mode also apply in interface configuration mode. For more information, see the "ISDN Switch Types for Use with QSIG" section on page 9 .

                Note   

                For this interface, this interface configuration command overrides the setting of the isdn switch-type command entered in global configuration mode.

                 
                Step 5 isdn contiguous-bchan


                Example:
                Router(config-if)# isdn contiguous-bchan
                 

                (E1 only) Sets contiguous bearer-channel handling, causing B channels 1 to 30 to map to timeslots 1 to 31, skipping timeslot 16.

                 
                Step 6Do one of the following:
                • isdn protocol-emulate user
                • isdn protocol-emulate network


                Example:
                Router(config-if)# isdn protocol-emulate user


                Example:
                
                
                        


                Example:
                          


                Example:
                Router(config-if)# isdn protocol-emulate network
                 

                (User side only) Configures Layer 2 and Layer 3 port mode emulation and clock status for the user--that is, the TE (clock slave). This is the default.

                or

                (Network side only) Configures Layer 2 and Layer 3 port mode emulation and clock status for the network--that is, the NT (clock master).

                Note   

                On the Cisco MC3810, the isdn protocol-emulate command replaces the isdn switch-type command.

                 
                Step 7 isdn overlap-receiving


                Example:
                Router(config-if)# isdn overlap-receiving
                 

                (Optional) Activates overlap signaling to send to the destination PBX. The interface waits for possible additional call-control information from the preceding PBX.

                Note   

                You can leave the default mode of enbloc , in which all call-setup information is sent in the setup message without need for additional messages from the preceding PINX.

                 
                Step 8 isdn network-failure-cause value


                Example:
                Router(config-if)# isdn network-failure-cause 1
                 

                (Optional) Specifies the cause code to pass to the PBX when a call cannot be placed or completed because of internal network failures.

                 
                Step 9 exit


                Example:
                Router(config-if)# exit
                 

                Exits the current mode.

                 

                Configure BRI Interfaces for QSIG

                To configure BRI interfaces for QSIG, perform the following steps.


                Note


                Set up each interface for either user side or network side.


                SUMMARY STEPS

                  1.    enable

                  2.    configure terminal

                  3.    Cisco MC3810

                  4.    Cisco MC3810, Cisco 2600 Series, and Cisco 3600 Series Only

                  5.    Cisco MC3810 Only

                  6.    Cisco MC3810 Only

                  7.    Cisco MC3810 Only

                  8.    Cisco 2600 Series and Cisco 3600 Series Only

                  9.    isdn sending-complete

                  10.    Cisco MC3810, Cisco 2600, and Cisco 3600 Series Only

                  11.    Do one of the following:

                  • isdn protocol-emulate user
                  • isdn protocol-emulate network

                  12.    isdn overlap-receiving

                  13.    isdn network-failure-cause value

                  14.    exit


                DETAILED STEPS
                   Command or ActionPurpose
                  Step 1 enable


                  Example:
                  Router> enable
                   

                  Enters privileged EXEC mode. Enter your password when prompted.

                   
                  Step 2 configure terminal


                  Example:
                  Router# configure terminal
                   

                  Enters configuration mode.

                   
                  Step 3 Cisco MC3810


                  Example:
                              
                                interface bri number


                  Example:
                              
                  Cisco 2600 Series and Cisco 3600 Series
                            


                  Example:
                              
                                interface bri slot/port


                  Example:
                  Router(config)# interface bri 1/1
                   

                  Enters interface configuration mode for the specified port, connector, or interface card number (location of voice module) or slot/port (location of voice network module and voice interface card).

                   
                  Step 4 Cisco MC3810, Cisco 2600 Series, and Cisco 3600 Series Only


                  Example:
                              
                                isdn static-tei 
                              
                                tei-number
                              
                            


                  Example:
                  Router(config-if)# isdn static-tei 0
                   

                  Enables use of the ISDN lines.

                  Note   

                  This command is required. In previous releases, it was set automatically with use of the isdn switch-type basic-qsig command.

                   
                  Step 5 Cisco MC3810 Only


                  Example:
                              
                                isdn layer1-emulate 
                              
                                user
                              
                            


                  Example:
                  Router(config-if)# isdn layer1-emulate user
                   

                  Configures Layer 1 port mode emulation and clock status for the user--that is, the TE (clock slave).

                   
                  Step 6 Cisco MC3810 Only


                  Example:
                              
                                isdn layer1-emulate 
                              
                                network
                              
                            


                  Example:
                  Router(config-if)# isdn layer1-emulate network
                   

                  Configures Layer 1 port mode emulation and clock status for the network--that is, the NT (clock master).

                   
                  Step 7 Cisco MC3810 Only


                  Example:
                              
                                network-clock-priority
                              
                              
                                
                                 {low | high}


                  Example:
                  Router(config-if)# network-clock-priority high
                   

                  (TE only) Sets priority for recovering clock signal from the network NT device for this BRI voice port. Keywords are as follows:

                  • high --First priority
                  • low --Low priority
                  Note   

                  Do not use this command if the port is configured as NT in Step 5 .

                   
                  Step 8 Cisco 2600 Series and Cisco 3600 Series Only


                  Example:
                              
                                isdn incoming-voice 
                              
                                voice
                              
                            


                  Example:
                  Router(config-if)# isdn incoming-voice voice
                   

                  Routes incoming voice calls. This is set for voice-capable BRI interfaces by default. The exception is for Cisco 2600 series and Cisco 3600 series BRI S/T TE voice interface cards, where, in the absence of this command, the isdn incoming-voice modem configuration setting converts to isdn incoming-voice voice when it receives an incoming call.

                   
                  Step 9 isdn sending-complete


                  Example:
                  Router(config-if)# isdn sending-complete
                   

                  (Optional) Configures the voice port to include the "Sending Complete" information element in the outgoing call-setup message. This command is used in some geographic locations, such as Hong Kong and Taiwan, where the "Sending Complete" information element is required in the outgoing call-setup message.

                   
                  Step 10 Cisco MC3810, Cisco 2600, and Cisco 3600 Series Only


                  Example:
                              
                                isdn switch-type basic-qsig
                            


                  Example:
                  Router(config-if)# isdn switch-type basic-qsig
                   

                  (Optional) If the service-provider switch type for this BRI port differs from the global ISDN switch type, set the interface ISDN switch type to match the service-provider switch type. The interface ISDN switch type overrides the global ISDN switch type on this interface.

                  For more information, see the "ISDN Switch Types for Use with QSIG" section on page 9 .

                   
                  Step 11Do one of the following:
                  • isdn protocol-emulate user
                  • isdn protocol-emulate network


                  Example:
                  Router(config-if)# isdn protocol-emulate user


                  Example:
                  
                  
                          


                  Example:
                            


                  Example:
                  Router(config-if)# isdn protocol-emulate network
                   

                  (User side only) Configures Layer 2 and Layer 3 port mode emulation and clock status for the user--that is, the TE (clock slave).

                  or

                  (Network side only) Configures Layer 2 and Layer 3 port mode emulation and clock status for the network--that is, the NT (clock master).

                  Note   

                  On the Cisco MC3810, the isdn protocol-emulate command replaces the isdn switch-type command.

                   
                  Step 12 isdn overlap-receiving


                  Example:
                  Router(config-if)# isdn overlap-receiving
                   

                  (Optional) Activates overlap signaling to send to the destination PBX and causes the interface to wait for possible additional call-control information from the preceding PINX.

                  Note   

                  You can leave the default mode of enbloc , in which all call-setup information is sent in the setup message without need for additional messages from the preceding PINX.

                   
                  Step 13 isdn network-failure-cause value


                  Example:
                  Router(config-if)# isdn network-failure-cause 1
                   

                  (Optional) Specifies the cause code to pass to the PBX when a call cannot be placed or completed because of internal network failures.

                   
                  Step 14 exit


                  Example:
                  Router(config-if)# exit
                   

                  Exits the current mode.

                   

                  Verify the QSIG Configuration

                  To verify the QSIG configuration, perform the following steps (listed alphabetically).

                  SUMMARY STEPS

                    1.    show call history voice record

                    2.    show cdapi

                    3.    show controllers t1 or show controllers e1

                    4.    show dial-peer voice

                    5.    show isdn

                    6.    show isdn {active [serial-number] | history [serial-number]}

                    7.    show isdn service

                    8.    show isdn status

                    9.    show rawmsg

                    10.    show running-config

                    11.    show voice port slot/port | summary


                  DETAILED STEPS
                    Step 1   show call history voice record

                    Use this command to display information about calls made to and from the router.

                    Step 2   show cdapi

                    Use this command to display Call Distributor Application Programming Interface (CDAPI) information.

                    Step 3   show controllers t1 or show controllers e1

                    Use this command to display information about T1 and E1 controllers.

                    Step 4   show dial-peer voice

                    Use this command to display how voice dial peers are configured.

                    Step 5   show isdn

                    Use this command to display information about switch type, memory, status, and Layer 2 and Layer 3 timers.

                    Step 6   show isdn {active [serial-number] | history [serial-number]}

                    Use this command to display current (active keyword) or both historic and current (history keyword) call information for all ISDN interfaces or, optionally, a specific ISDN PRI interface (created and configured as a serial interface). Information displayed includes called number, remote node name, seconds of connect time, seconds of connect time remaining, seconds idle, and advice of charge (AOC) charging time units used during the call.

                    Step 7   show isdn service

                    Use this command to display the state and the service status of each ISDN channel.

                    Step 8   show isdn status

                    Use this command to display the status of all ISDN interfaces, including active layers, timer information, and switch-type settings.

                    Step 9   show rawmsg

                    Use this command to display information about memory leaks.

                    Step 10   show running-config

                    Use this command to display basic router configuration.

                    Step 11   show voice port slot/port | summary

                    Use this command to display summary information about voice-port configuration.


                    Troubleshooting Tips

                    • Use the debug cdapi events | detail} command to display information about CDAPI application events, registration, messages, and more.
                    • Use the debug isdn event command to display events occurring on the user side (on the router) of the ISDN interface. ISDN events that can be displayed are Q.931 events (call setup and teardown of ISDN network connections).
                    • Use the debug tsp command to display information about the telephony-service provider (TSP).

                    Examples

                    This section provides the following output examples:

                    Sample Output for the show cdapi Command

                    The following shows sample output for a PRI voice port on a Cisco 3660 series.

                    Router# show cdapi
                    Registered CDAPI Applications/Stacks
                    ====================================
                    Application: TSP CDAPI Application Voice
                            Application Type(s) : Voice Facility Signaling
                            Application Level   : Tunnel
                            Application Mode    : Enbloc
                    Signaling Stack: ISDN
                            Interface: Se5/0:15
                    Signaling Stack: ISDN
                            Interface: Se5/1:15
                    Signaling Stack: ISDN
                            Interface: Se6/0:15
                    Signaling Stack: ISDN
                            Interface: Se6/1:15
                    CDAPI Message Buffers
                    =====================
                    Used Msg Buffers: 0, Free Msg Buffers: 9600
                    Used Raw Buffers: 0, Free Raw Buffers: 4800
                    Used Large-Raw Buffers: 0, Free Large-Raw Buffers: 480
                    

                    The following shows sample output for a PRI voice port on a Cisco MC3810.

                    Router# show cdapi
                    Registered CDAPI Applications/Stacks
                    ====================================
                    Application: TSP CDAPI Application Voice
                            Application Type(s) : Voice Facility Signaling
                            Application Level   : Tunnel
                            Application Mode    : Enbloc
                    Signaling Stack: ISDN
                            Interface: Se1:15
                    CDAPI Message Buffers
                    =====================
                    Used Msg Buffers: 2, Free Msg Buffers: 1198
                    Used Raw Buffers: 2, Free Raw Buffers: 598
                    Used Large-Raw Buffers: 0, Free Large-Raw Buffers: 60
                    Sample Output for the show controller Command

                    The following shows sample output for a T1 line (not having problems).

                    Router# show controller T1
                    T1 3/0 is up.
                      Applique type is Channelized T1
                      Cablelength is long gain36 0db
                      No alarms detected.
                      alarm-trigger is not set
                      Version info Firmware: 20020812, FPGA: 11
                      Framing is ESF, Line Code is B8ZS, Clock Source is Line.
                      Data in current interval (425 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
                      Total Data (last 24 hours)
                         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
                    

                    The following shows sample output for a T1 line (having problems).

                    Router# show controller T1 2
                    T1 2 is down.
                      Applique type is Channelized T1
                      Cablelength is long gain36 0db
                      Transmitter is sending remote alarm.
                      Receiver has loss of signal.
                      alarm-trigger is not set
                      Version info of slot 0:  HW: 4, PLD Rev: 0
                    Manufacture Cookie Info:
                     EEPROM Type 0x0001, EEPROM Version 0x01, Board ID 0x42,
                     Board Hardware Version 1.32, Item Number 800-2540-02,
                     Board Revision A0, Serial Number 15264519,
                     PLD/ISP Version 0.0,  Manufacture Date 24-Sep-1999.
                      Framing is SF, Line Code is AMI, Clock Source is Internal.
                      Data in current interval (329 seconds elapsed):
                         1 Line Code Violations, 0 Path Code Violations
                         0 Slip Secs, 329 Fr Loss Secs, 1 Line Err Secs, 0 Degraded Mins
                         0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 329 Unavail Secs
                      Total Data (last 24 hours)
                         543 Line Code Violations, 0 Path Code Violations,
                         3 Slip Secs, 86400 Fr Loss Secs, 364 Line Err Secs, 0 Degraded Mins,
                         0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 86400 Unavail Secs
                    Sample Output for the show isdn service Command

                    The following shows sample output for a PRI on a T1 controller.

                    Router# show isdn service
                    PRI Channel Statistics:
                    ISDN Se0:15, Channel (1-31)
                      Activated dsl 8
                      State (0=Idle 1=Propose 2=Busy 3=Reserved 4=Restart 5=Maint)
                      0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
                      Channel (1-31) Service (0=Inservice 1=Maint 2=Outofservice)
                      0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
                    Sample Output for the show isdn status Command

                    The following shows sample output for a BRI voice port on a Cisco 3600 series.

                    Router# show isdn status
                    Global ISDN Switchtype = primary-qsig
                    ISDN Serial3/1:15 interface
                            dsl 0, interface ISDN Switchtype = primary-qsig
                             **** Master side configuration ****
                        Layer 1 Status:
                            ACTIVE
                        Layer 2 Status:
                            TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
                        Layer 3 Status:
                            29 Active Layer 3 Call(s)
                        Activated dsl 0 CCBs = 29
                            CCB:callid=89BF, sapi=0, ces=0, B-chan=5, calltype=VOICE
                    .
                    .
                    .
                    CCB:callid=89C8, sapi=0, ces=0, B-chan=14, calltype=VOICE
                    .
                    .
                    .
                            CCB:callid=89D9, sapi=0, ces=0, B-chan=1, calltype=VOICE
                            CCB:callid=89DA, sapi=0, ces=0, B-chan=2, calltype=VOICE
                            CCB:callid=89DB, sapi=0, ces=0, B-chan=3, calltype=VOICE
                        The Free Channel Mask: 0x80000018
                    ISDN Serial3/0:15 interface
                            dsl 1, interface ISDN Switchtype = primary-qsig
                             **** Master side configuration ****
                        Layer 1 Status:
                            ACTIVE
                        Layer 2 Status:
                            TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
                            TEI = 0, Ces = 9, SAPI = 16, State = TEI_ASSIGNED
                        Layer 3 Status:
                            28 Active Layer 3 Call(s)
                        Activated dsl 1 CCBs = 28
                            CCB:callid=BDF, sapi=0, ces=0, B-chan=2, calltype=VOICE
                            CCB:callid=BE0, sapi=0, ces=0, B-chan=1, calltype=VOICE
                            CCB:callid=BE1, sapi=0, ces=0, B-chan=3, calltype=VOICE
                    .
                    .
                    .
                    CCB:callid=BFA, sapi=0, ces=0, B-chan=31, calltype=VOICE
                        The Free Channel Mask: 0xB0000000
                        Total Allocated ISDN CCBs = 54
                    Total Allocated ISDN CCBs = 0
                    .
                    .
                    .
                    CCB:callid=89C8, sapi=0, ces=0, B-chan=14, calltype=VOICE
                    .
                    .
                    .
                            CCB:callid=89D9, sapi=0, ces=0, B-chan=1, calltype=VOICE
                            CCB:callid=89DA, sapi=0, ces=0, B-chan=2, calltype=VOICE
                            CCB:callid=89DB, sapi=0, ces=0, B-chan=3, calltype=VOICE
                        The Free Channel Mask: 0x80000018
                    ISDN Serial3/0:15 interface
                            dsl 1, interface ISDN Switchtype = primary-qsig
                             **** Master side configuration ****
                        Layer 1 Status:
                            ACTIVE
                        Layer 2 Status:
                            TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
                            TEI = 0, Ces = 9, SAPI = 16, State = TEI_ASSIGNED
                        Layer 3 Status:
                            28 Active Layer 3 Call(s)
                        Activated dsl 1 CCBs = 28
                            CCB:callid=BDF, sapi=0, ces=0, B-chan=2, calltype=VOICE
                            CCB:callid=BE0, sapi=0, ces=0, B-chan=1, calltype=VOICE
                            CCB:callid=BE1, sapi=0, ces=0, B-chan=3, calltype=VOICE
                    .
                    .
                    .
                    CCB:callid=BFA, sapi=0, ces=0, B-chan=31, calltype=VOICE
                        The Free Channel Mask: 0xB0000000
                        Total Allocated ISDN CCBs = 54
                    

                    The following shows sample output for a BRI voice port and a PRI voice port on a Cisco MC3810.

                    Router# show isdn status
                    Global ISDN Switchtype = basic-qsig
                    ISDN BRI1 interface
                    dsl 1, interface ISDN Switchtype = basic-qsig
                    **** Slave side configuration ****
                        Layer 1 Status:
                    DEACTIVATED
                        Layer 2 Status:
                    TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
                        Layer 3 Status:
                    NLCB:callid=0x0, callref=0x0, state=31, ces=0 event=0x0
                    0 Active Layer 3 Call(s)
                        Activated dsl 1 CCBs = 0
                    ISDN BRI2 interface
                    .
                    .
                    .
                    Router# show isdn status
                         Global ISDN Switchtype = primary-qsig
                         ISDN Serial1:23 interface
                                 dsl 0, interface ISDN Switchtype = primary-qsig
                                  **** Slave side configuration ****
                             Layer 1 Status:
                                 DEACTIVATED
                             Layer 2 Status:
                                 TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
                             Layer 3 Status:
                                 0 Active Layer 3 Call(s)
                             Activated dsl 0 CCBs = 0
                             The Free Channel Mask: 0x7FFFFF
                    

                    The following shows sample output for a PRI voice port on a Cisco 7200 series.

                    Router# show isdn status
                    Global ISDN Switchtype = primary-qsig
                    ISDN Serial1/0:15 interface
                            dsl 0, interface ISDN Switchtype = primary-qsig
                             **** Slave side configuration ****
                        Layer 1 Status:
                            DEACTIVATED
                        Layer 2 Status:
                            TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
                        Layer 3 Status:
                            0 Active Layer 3 Call(s)
                        Activated dsl 0 CCBs = 0
                        The Free Channel Mask:  0x7FFF7FFF
                    ISDN Serial1/1:15 interface
                            dsl 1, interface ISDN Switchtype = primary-qsig
                             **** Slave side configuration ****
                        Layer 1 Status:
                            DEACTIVATED
                        Layer 2 Status:
                            TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
                        Layer 3 Status:
                            0 Active Layer 3 Call(s)
                        Activated dsl 1 CCBs = 0
                        The Free Channel Mask:  0x7FFF7FFF
                        Total Allocated ISDN CCBs = 0

                    Configuring ISDN PRI Q.931 Support

                    To configure ISDN PRI Q.931 support, perform the following steps.


                    Note


                    Use these commands on Cisco 2600 series and Cisco 3600 series only.


                    • Set up each interface for either user side or network side.
                    SUMMARY STEPS

                      1.    enable

                      2.    configure terminal

                      3.    isdn switch-type primary-net5

                      4.    controller {t1 | e1} slot/port

                      5.    pri-group timeslots range

                      6.    exit

                      7.    interface serial 0/0: channel-number

                      8.    Do one of the following:

                      • isdn protocol-emulate user
                      • isdn protocol-emulate network

                      9.    line-power

                      10.    isdn incoming-voice voice

                      11.    exit


                    DETAILED STEPS
                       Command or ActionPurpose
                      Step 1 enable


                      Example:
                      Router> enable
                       

                      Enters privileged EXEC mode. Enter your password when prompted.

                       
                      Step 2 configure terminal


                      Example:
                      Router# configure terminal
                       

                      Enters configuration mode.

                       
                      Step 3 isdn switch-type primary-net5


                      Example:
                      Router(config)# isdn switch-type primary-net5
                       

                      (Optional) Selects a service-provider switch type that accommodates PRI.

                      You can set the ISDN switch type in either global configuration mode or interface configuration mode.

                      • Global configuration mode (this step): specify the switch type for all PRI ports.
                      • Interface configuration mode: specify the switch type for a single interface. The type specified in this mode for any individual interface overrides the type specified in global configuration mode.
                       
                      Step 4 controller {t1 | e1} slot/port


                      Example:
                      Router(config)# controller t1 1/1
                       

                      Enters T1 or E1 controller configuration mode for the specified slot/port.

                       
                      Step 5 pri-group timeslots range


                      Example:
                      Router(config-controller)# pri-group timeslots 1-23
                       

                      Specifies PRI on the specified or timeslots that make up the PRI group. Maximum T1 range: 1-23. Maximum E1 range: 1-31. Separate low and high values with a hyphen.

                      Note   

                      You can configure the PRI group to include all available timeslots, or you can configure a select group of timeslots for the PRI group.

                       
                      Step 6 exit


                      Example:
                      Router(config-controller)# exit
                       

                      Exits the current mode.

                       
                      Step 7 interface serial 0/0: channel-number


                      Example:
                      Router(config)# interface serial 0/0:23
                       

                      Enters interface configuration mode for the specified PRI slot/port and D-channel ISDN interface. D-channel ISDN interface is (for T1) 23 and (for E1) 15.

                       
                      Step 8Do one of the following:
                      • isdn protocol-emulate user
                      • isdn protocol-emulate network


                      Example:
                      Router(config-if)# isdn protocol-emulate user


                      Example:
                      
                      
                              


                      Example:
                                


                      Example:
                      Router(config-if)# isdn protocol-emulate network
                       

                      (User side only) Configures Layer 2 and Layer 3 port mode emulation and clock status for the user--that is, the TE (clock slave).

                      or

                      (Network side only) Configures Layer 2 and Layer 3 port mode emulation and clock status for the network--that is, the NT (clock master).

                       
                      Step 9 line-power


                      Example:
                      Router(config-if)# line-power
                       

                      Turns on the power supplied from an NT-configured port to a TE device.

                       
                      Step 10 isdn incoming-voice voice


                      Example:
                      Router(config-if)# isdn incoming-voice voice
                       

                      Routes incoming ISDN voice calls to the voice module.

                       
                      Step 11 exit


                      Example:
                      Router(config-if)# exit
                       

                      Exits the current mode.

                       

                      Configuration Examples for ISDN Voice Interfaces

                      ISDN-to-PBX and ISDN-to-PSTN Examples

                      This section contains the following configuration examples:

                      Configuration examples included in this section correspond to the topology shown in the figure below. The routers each include a BRI voice interface card and a two-slot voice network module, along with other voice interface cards and modules that are included for completeness. Router A is connected to a PBX through the BRI voice interface card and to Router B by a serial interface. Router B includes a BRI voice interface card for connection to the PSTN in order to process voice calls from off-premises terminal equipment. Router A is configured for ISDN BRI network-side emulation and Router B is configured for ISDN BRI user-side emulation.

                      Figure 1. Configuration Example Topology

                      ISDN Connection to a PBX Configuration (Network-Side Emulation)

                      The following illustrates the configuration of the BRI interfaces on a Cisco 3640 (Router A in the figure above) connected to a PBX:

                      interface BRI1/0
                      no ip address
                      isdn switch-type basic-net3
                      isdn overlap-receiving
                      isdn protocol-emulate network
                      isdn layer1-emulate network
                      isdn T306 30000
                      isdn sending-complete
                      isdn skipsend-idverify
                      isdn incoming-voice voice
                      !
                      interface BRI1/1
                      	no ip address
                      isdn switch-type basic-net3
                      isdn overlap-receiving
                      isdn protocol-emulate network
                      isdn layer1-emulate network
                      isdn T306 30000
                      isdn sending-complete
                      isdn skipsend-idverify
                      isdn incoming-voice voice
                      !
                      ip default-gateway 1.14.0.1
                      ip classless
                      ip route 2.0.0.0 255.0.0.0 Ethernet0/1
                      ip route 2.0.0.0 255.0.0.0 Serial0/1
                      ip route 172.22.66.33 255.255.255.255 Ethernet0/0
                      !
                      !
                      line con 0
                       exec-timeout 0 0
                       transport input none
                      line aux 0
                      line vty 0 4
                       login

                      ISDN Connection to the PSTN Configuration (User-Side Emulation)

                      The following illustrates the configuration of the BRI interfaces on a Cisco 2600 series (Router B in the figure above) connected to the public ISDN telephone network:

                      interface BRI1/0
                      no ip address
                       no ip directed-broadcast
                       isdn switch-type basic-ni1
                       isdn twait-disable
                       isdn spid1 14085552111 5552111
                       isdn spid2 14085552112 5552112
                       isdn incoming-voice voice
                      interface BRI1/1
                       no ip address
                       no ip directed-broadcast
                       isdn switch-type basic-ni1
                       isdn twait-disable
                       isdn spid1 14085552111 5552111
                       isdn spid2 14085552112 5552112
                       isdn incoming-voice voice
                      !
                      ip classless
                      ip route 3.0.0.0 255.0.0.0 Ethernet0/1
                      ip route 3.0.0.0 255.0.0.0 Serial0/1
                      ip route 172.21.66.0 255.255.255.0 Ethernet0/0
                      !
                      line con 0
                       exec-timeout 0 0
                       transport input none
                      line aux 0
                      line vty 0 4
                       login

                      QSIG Support Examples

                      The following show QSIG configurations on a variety of supported routers:

                      QSIG Support on Cisco 3600 Series Routers

                      The following shows how a Cisco 3660 series can be configured for E1 and PRI with QSIG signaling support using VoIP and VoATM. Note that Serial5/0, Serial5/1, Serial6/0, and Serial6/1 are configured as ISDN E1 PRI (user side).

                      .
                      .
                      .
                      hostname router3660
                      !
                      memory-size iomem 20
                      voice-card 5
                      !
                      voice-card 6
                      !
                      ip subnet-zero
                      !
                      isdn switch-type primary-qsig
                      isdn voice-call-failure 0
                      !
                      controller E1 5/0
                       pri-group timeslots 1-5,16
                      !
                      controller E1 5/1
                       pri-group timeslots 1-31
                      !
                      controller E1 6/0
                       pri-group timeslots 1-31
                      !
                      controller E1 6/1
                       pri-group timeslots 1-31
                      !
                      interface FastEthernet0/0
                       ip address 10.7.72.9 255.255.255.0
                       speed auto
                       half-duplex
                      !
                      interface FastEthernet0/1
                       ip address 10.100.100.7 255.255.255.0
                       no keepalive
                       duplex auto
                       speed auto
                       hold-queue 1000 in
                      !
                      interface Serial2/0
                       no ip address
                       shutdown
                      !
                      interface Serial2/1
                       no ip address
                       shutdown
                      !
                      interface Serial2/2
                       no ip address
                       shutdown
                      !
                      interface Serial2/3
                       no ip address
                       shutdown
                      !
                      interface ATM3/0
                       no ip address
                       atm clock INTERNAL
                       no atm ilmi-keepalive
                       pvc 10/40
                        vbr-rt 155000 50000 64000
                        encapsulation aal5mux voice
                       !
                      interface Serial5/0:15
                       no ip address
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn overlap-receiving
                       isdn incoming-voice voice
                       no cdp enable
                      !
                      interface Serial5/1:15
                       no ip address
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn incoming-voice voice
                       fair-queue 64 256 0
                       no cdp enable
                      !
                      interface Serial6/0:15
                       no ip address
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn incoming-voice voice
                       fair-queue 64 256 0
                       no cdp enable
                      !
                      interface Serial6/1:15
                       no ip address
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn incoming-voice voice
                       fair-queue 64 256 0
                       no cdp enable
                      !
                      ip classless
                      ip route 192.168.17.125 255.255.255.255 FastEthernet0/0
                      no ip http server
                      !
                      map-class frame-relay frs0
                       frame-relay voice bandwidth 1260000
                       frame-relay fragment 200
                       no frame-relay adaptive-shaping
                       frame-relay cir 1260000
                       frame-relay fair-queue
                      !
                      voice-port 1/0/0
                       modem passthrough system
                       timing hookflash-in 0
                      !
                      voice-port 1/0/1
                       modem passthrough system
                       timing hookflash-in 0
                      !
                      voice-port 5/0:15
                       compand-type a-law
                      !
                      voice-port 5/1:15
                       compand-type a-law
                       cptone DE
                      !
                      voice-port 6/0:15
                       compand-type a-law
                       cptone DE
                      !
                      voice-port 6/1:15
                       no echo-cancel enable
                       compand-type a-law
                       cptone DE
                      !
                      dial-peer voice 1 pots
                       shutdown
                       destination-pattern 21...
                       modem passthrough system
                       direct-inward-dial
                      !
                      dial-peer voice 51 voip
                       shutdown
                       destination-pattern 6504007
                       modem passthrough system
                       session target ipv4:100.100.100.3
                      !
                      dial-peer voice 2 pots
                       shutdown
                       destination-pattern 21...
                       modem passthrough system
                       direct-inward-dial
                       port 5/1:15
                      !
                      dial-peer voice 3 voip
                       shutdown
                       destination-pattern 22...
                       modem passthrough system
                       session target ipv4:100.100.100.6
                      !
                      dial-peer voice 5 pots
                       shutdown
                       destination-pattern 22...
                       modem passthrough system
                       direct-inward-dial
                       prefix 4006
                      !
                      dial-peer voice 13 pots
                       shutdown
                       destination-pattern 21...
                       modem passthrough system
                       direct-inward-dial
                       port 6/0:15
                      !
                      dial-peer voice 6 pots
                       destination-pattern 21...
                       modem passthrough system
                       direct-inward-dial
                       port 6/1:15
                      !
                      dial-peer voice 44 voatm
                       destination-pattern 22...
                       modem passthrough system
                       session target ATM3/0 pvc 10/40
                      !
                      dial-peer voice 20 pots
                       incoming called-number 4...
                       destination-pattern 4007
                       modem passthrough system
                       direct-inward-dial
                       port 5/0:15
                       prefix 4007
                      !
                      dial-peer voice 21 pots
                       destination-pattern 4006
                       modem passthrough system
                       direct-inward-dial
                       port 5/0:15
                       prefix 4006
                      !
                      line con 0
                       transport input none
                      line aux 0
                      line vty 0 4
                       login
                      !
                      end

                      QSIG Support on Cisco 7200 Series Routers

                      The following shows how QSIG protocol support is configured with VoFR on Router A (where calls originate) and Router B (where calls terminate). Note that Serial3/0:15, Serial3/1:15, Serial4/0:15, and Serial4/1:15 are configured as ISDN E1 PRI (user side).

                      Router A: Originating Configuration

                      Router B: Terminating Configuration

                      .
                      .
                      .
                      hostname 7200_RouterA
                      !
                      card type e1 3
                      card type e1 4
                      !
                      dspint DSPfarm3/0
                      !
                      dspint DSPfarm4/0
                      !
                      ip subnet-zero
                      no ip domain-lookup
                      ip host routerC 192.168.17.125
                      ip host routerD 10.1.1.2
                      !
                      multilink virtual-template 1
                      frame-relay switching
                      isdn switch-type primary-qsig
                      isdn voice-call-failure 0
                      !
                      voice class codec 1
                       codec preference 1 g711ulaw
                       codec preference 3 g729br8
                      !
                      controller E1 3/0
                       pri-group timeslots 1-31
                       description qsig connected to PCG 1
                      !
                      controller E1 3/1
                       pri-group timeslots 1-31
                       description cas connected to PCG 2
                      !
                      controller E1 4/0
                       pri-group timeslots 1-31
                       description qsig group connected PCG slot3
                      !
                      controller E1 4/1
                       pri-group timeslots 1-31
                       description qsig group connected PCG slot4
                      !
                      !
                      !
                      !
                      !
                      .
                      .
                      .
                      hostname 7200_RouterB
                      !
                      card type e1 3
                      card type e1 4
                      !
                      dspint DSPfarm3/0
                      !
                      dspint DSPfarm4/0
                      !
                      ip subnet-zero
                      ip cef
                      no ip domain-lookup
                      ip host routerC 192.168.17.125
                      !
                      multilink virtual-template 1
                      isdn switch-type primary-qsig
                      isdn voice-call-failure 0
                      !
                      !
                      !
                      !
                      !
                      !
                      controller E1 3/0
                       pri-group timeslots 1-31
                       description qsig connected to PCG 5
                      !
                      controller E1 3/1
                       pri-group timeslots 1-31
                       description cas connected to PCG 6
                      !
                      controller E1 4/0
                       pri-group timeslots 1-31
                       description cas connected to PCG slot7
                      !
                      controller E1 4/1
                       pri-group timeslots 1-31
                       description cas connected to PCG slot8
                      !
                      interface Loopback0
                       no ip address
                       no ip directed-broadcast
                      !
                      interface FastEthernet0/0
                       no ip address
                       no ip directed-broadcast
                       shutdown
                       half-duplex
                      !
                      !
                      !
                      !
                      !
                      interface Serial1/0
                       bandwidth 512
                       ip address 10.1.1.104 255.255.255.0
                       no ip directed-broadcast
                       encapsulation ppp
                       no ip route-cache
                       no ip mroute-cache
                       load-interval 30
                       no keepalive
                       shutdown
                       no fair-queue
                       clockrate 2015232
                       ppp multilink
                      !
                      interface Serial1/1
                       description vofr connection to 7200_RouterB_s1/1
                       ip address 10.0.0.2 255.0.0.0
                       ip broadcast-address 10.0.0.0
                       no ip directed-broadcast
                       encapsulation frame-relay
                       no ip route-cache
                       no ip mroute-cache
                       no keepalive
                       frame-relay traffic-shaping
                       frame-relay map ip 10.0.0.1 100 broadcast
                       frame-relay interface-dlci 100
                        class vofr_class
                        vofr data 4 call-control 5
                      !
                      interface Serial1/2
                       no ip address
                       no ip directed-broadcast
                       no ip route-cache
                       no ip mroute-cache
                       shutdown
                      !
                      interface Serial1/3
                       no ip address
                       no ip directed-broadcast
                       no ip route-cache
                       no ip mroute-cache
                       shutdown
                       clockrate 2015232
                      !
                      interface FastEthernet0/0
                       description VOIP_10.0.0.1_maxstress to 7200_RouterAgate
                       ip address 10.0.0.1 255.0.0.0
                       no ip directed-broadcast
                       no ip mroute-cache
                       shutdown
                       media-type MII
                       full-duplex
                      !
                      interface Serial1/0
                       no ip address
                       no ip directed-broadcast
                       no ip mroute-cache
                       shutdown
                      !
                      !
                      !
                      !
                      !
                      !
                      !
                      !
                      !
                      interface Serial1/1
                       description vofr connection to 7200_RouterA
                       ip address 10.0.0.1 255.0.0.0
                       ip broadcast-address 10.0.0.0
                       no ip directed-broadcast
                       encapsulation frame-relay
                       no keepalive
                       clockrate 8060928
                       frame-relay traffic-shaping
                       frame-relay map ip 10.0.0.2 100 broadcast
                       frame-relay interface-dlci 100
                        class vofr_class
                        vofr data 4 call-control 5
                      !
                      !
                      interface Serial1/2
                       no ip address
                       no ip directed-broadcast
                       shutdown
                       clockrate 2015232
                      !
                      !
                      interface Serial1/3
                       no ip address
                       no ip directed-broadcast
                       shutdown
                      !
                      !
                      !
                      !
                      interface Ethernet2/0
                       ip address 10.1.50.77 255.255.0.0
                       ip broadcast-address 10.1.0.0
                       no ip directed-broadcast
                       no ip route-cache
                       no ip mroute-cache
                      !
                      interface Ethernet2/1
                       ip address 10.0.0.2 255.255.0.0
                       ip broadcast-address 10.0.0.0
                       no ip directed-broadcast
                       no ip route-cache
                       no ip mroute-cache
                       shutdown
                      !
                      interface Ethernet2/2
                       no ip address
                       no ip directed-broadcast
                       no ip route-cache
                       no ip mroute-cache
                       shutdown
                      !
                      interface Ethernet2/3
                       no ip address
                       no ip directed-broadcast
                       no ip route-cache
                       no ip mroute-cache
                       shutdown
                      !
                      interface Serial3/0:15
                       no ip address
                       no ip directed-broadcast
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn overlap-receiving
                       isdn incoming-voice voice
                       isdn bchan-number-order ascending
                       no cdp enable
                      !
                      !
                      !
                      interface Serial3/1:15
                       no ip address
                       no ip directed-broadcast
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn overlap-receiving
                       isdn incoming-voice voice
                       isdn bchan-number-order ascending
                       no cdp enable
                      !
                      !
                      !
                      interface Ethernet2/0
                       ip address 10.5.192.123 255.255.0.0
                       ip helper-address 192.168.17.125
                       no ip directed-broadcast
                       no ip mroute-cache
                      !
                      !
                      interface Ethernet2/1
                       ip address 10.0.0.1 255.255.0.0
                       no ip directed-broadcast
                       no ip mroute-cache
                       shutdown
                      !
                      !
                      !
                      interface Ethernet2/2
                       no ip address
                       no ip directed-broadcast
                       shutdown
                      !
                      !
                      !
                      interface Ethernet2/3
                       no ip address
                       no ip directed-broadcast
                       shutdown
                      !
                      !
                      !
                      interface Serial3/0:15
                       no ip address
                       no ip directed-broadcast
                       no ip route-cache cef
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn overlap-receiving
                       isdn incoming-voice voice
                       isdn bchan-number-order ascending
                       no cdp enable
                      !
                      interface Serial3/1:15
                       no ip address
                       no ip directed-broadcast
                       no ip route-cache cef
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn overlap-receiving
                       isdn incoming-voice voice
                       isdn bchan-number-order ascending
                       no cdp enable
                      !
                      interface Serial4/0:15
                       no ip address
                       no ip directed-broadcast
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn overlap-receiving
                       isdn incoming-voice voice
                       isdn bchan-number-order ascending
                       no cdp enable
                      !
                      !
                      !
                      interface Serial4/1:15
                       no ip address
                       no ip directed-broadcast
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn overlap-receiving
                       isdn incoming-voice voice
                       isdn bchan-number-order ascending
                       no cdp enable
                      !
                      !
                      !
                      interface ATM5/0
                       no ip address
                       no ip directed-broadcast
                       no ip route-cache
                       no ip mroute-cache
                       shutdown
                       no atm ilmi-keepalive
                      !
                      !
                      !
                      !
                      !
                      interface Virtual-Template1
                       ip address 10.0.0.2 255.255.255.0
                       no ip directed-broadcast
                       load-interval 30
                       fair-queue 64 256 1
                       ppp multilink
                       ppp multilink fragment-delay 20
                       ppp multilink interleave
                       ip rtp priority 16384 16383 92
                      !
                      router igrp 144
                       network 10.0.0.0
                      !
                      ip default-gateway 10.21.75.10
                      ip classless
                      no ip http server
                      !
                      interface Serial4/0:15
                       no ip address
                       no ip directed-broadcast
                       no ip route-cache cef
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn overlap-receiving
                       isdn incoming-voice voice
                       isdn bchan-number-order ascending
                       no cdp enable
                      !
                      interface Serial4/1:15
                       no ip address
                       no ip directed-broadcast
                       no ip route-cache cef
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn overlap-receiving
                       isdn incoming-voice voice
                       isdn bchan-number-order ascending
                       no cdp enable
                      !
                      interface ATM5/0
                       no ip address
                       no ip directed-broadcast
                       shutdown
                       no atm ilmi-keepalive
                      !
                      interface FastEthernet6/0
                       no ip address
                       no ip directed-broadcast
                       shutdown
                       half-duplex
                      !
                      interface Virtual-Template1
                       ip unnumbered Loopback0
                       no ip directed-broadcast
                       no ip route-cache cef
                       ip mroute-cache
                       ppp multilink
                       ppp multilink fragment-delay 20
                       ppp multilink interleave
                      !
                      !
                      router igrp 144
                       network 10.0.0.0
                      !
                      !
                      ip classless
                      no ip http server
                      !
                      map-class frame-relay vofr_class
                       no frame-relay adaptive-shaping
                       frame-relay cir 4400000
                       frame-relay bc 1000
                       frame-relay fair-queue
                       frame-relay voice bandwidth 4000000
                       frame-relay fragment 256
                      !
                      voice-port 3/0:15
                       compand-type a-law
                       cptone DE
                      !
                      voice-port 3/1:15
                       compand-type a-law
                       cptone DE
                      !
                      voice-port 4/0:15
                       compand-type a-law
                       cptone DE
                      !
                      voice-port 4/1:15
                       compand-type a-law
                       cptone DE
                      !
                      dial-peer voice 5552222 pots
                       destination-pattern +5552...
                       direct-inward-dial
                       port 3/1:15
                       prefix 5552
                      !
                      dial-peer voice 5551111 vofr
                       destination-pattern +6......
                       sequence-numbers
                       session target Serial1/1 100
                       codec g729br8
                      !
                      dial-peer voice 5554 pots
                       destination-pattern 5554...
                       direct-inward-dial
                       port 4/1:15
                       prefix 5554
                      !
                      dial-peer voice 5553 pots
                       destination-pattern 5553...
                       direct-inward-dial
                       port 4/0:15
                       prefix 5553
                      !
                      dial-peer voice 5551 pots
                       destination-pattern +5551...
                       direct-inward-dial
                       port 3/0:15
                       prefix 5551
                      .
                      .
                      .
                      map-class frame-relay vofr_class
                       no frame-relay adaptive-shaping
                       frame-relay cir 4400000
                       frame-relay bc 1000
                       frame-relay fair-queue
                       frame-relay voice bandwidth 4000000
                       frame-relay fragment 256
                      !
                      voice-port 3/0:15
                       compand-type a-law
                      !
                      !
                      voice-port 3/1:15
                       compand-type a-law
                      !
                      !
                      voice-port 4/0:15
                       compand-type a-law
                      !
                      !
                      voice-port 4/1:15
                       compand-type a-law
                      !
                      !
                      dial-peer voice 5552222 pots
                       destination-pattern +6662...
                       direct-inward-dial
                       port 3/1:15
                       prefix 6662
                      !
                      dial-peer voice 5551111 vofr
                       destination-pattern +5......
                       sequence-numbers
                       session target Serial1/1 100
                       codec g729br8
                      !
                      dial-peer voice 6661 pots
                       destination-pattern +6661...
                       direct-inward-dial
                       port 3/0:15
                       prefix 6661
                      !
                      dial-peer voice 6663 pots
                       destination-pattern +6663...
                       direct-inward-dial
                       port 4/0:15
                       prefix 6663
                      !
                      dial-peer voice 6664 pots
                       destination-pattern +6664...
                       direct-inward-dial
                       port 4/1:15
                       prefix 6664
                      .
                      .
                      .

                      QSIG Support on Cisco MC3810 Multiservice Concentrators

                      The following shows how a Cisco MC3810 can be configured for E1 and PRI with QSIG signaling support and VoIP and VoFR. Note that Serial1:15 is configured as ISDN E1 PRI (user side).

                      .
                      .
                      .
                      hostname Router3810
                      !
                      network-clock base-rate 56k
                      ip subnet-zero
                      !
                      isdn switch-type primary-qsig
                      isdn voice-call-failure 0
                      !
                      controller T1 0
                       mode atm
                       framing esf
                       clock source internal
                       linecode b8zs
                      !
                      controller E1 1
                       pri-group timeslots 1-7,16
                      !
                      interface Ethernet0
                       ip address 100.100.100.6 255.255.255.0
                       no ip directed-broadcast
                      !
                      interface Serial0
                       bandwidth 2000
                       ip address 10.168.14.1 255.255.255.0
                       no ip directed-broadcast
                       encapsulation frame-relay
                       no ip mroute-cache
                       no keepalive
                       clockrate 2000000
                       cdp enable
                       frame-relay traffic-shaping
                       frame-relay interface-dlci 100
                        class frs0
                        vofr cisco
                      !
                      interface Serial1
                       no ip address
                       no ip directed-broadcast
                       shutdown
                      !
                      interface Serial1:15
                       no ip address
                       no ip directed-broadcast
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn overlap-receiving
                       isdn incoming-voice voice
                       fair-queue 64 256 0
                       no cdp enable
                      !
                      interface ATM0
                       no ip address
                       no ip directed-broadcast
                       ip mroute-cache
                       no atm ilmi-keepalive
                       pvc 10/42
                        encapsulation aal5mux voice
                       !
                      !
                      interface FR-ATM20
                       no ip address
                       no ip directed-broadcast
                       shutdown
                      !
                      no ip http server
                      ip classless
                      ip route 223.255.254.0 255.255.255.0 Ethernet0
                      !
                      map-class frame-relay frs0
                       frame-relay voice bandwidth 1260000
                       frame-relay fragment 200
                       no frame-relay adaptive-shaping
                       frame-relay cir 1260000
                       frame-relay fair-queue
                      !
                      map-class frame-relay frsisco
                      !
                      voice-port 1:15
                       compand-type a-law
                      !
                      dial-peer voice 100 voatm
                       shutdown
                       destination-pattern 4...
                       session target ATM0 pvc 10/42
                       codec g729ar8
                       no vad
                      !
                      dial-peer voice 1 pots
                       shutdown
                       destination-pattern 3001
                      !
                      dial-peer voice 42 vofr
                       destination-pattern 4006
                       session target Serial0 100
                       signal-type ext-signal
                      !
                      dial-peer voice 21 pots
                       destination-pattern 4007
                       direct-inward-dial
                       port 1:15
                       prefix 4007
                      !
                      dial-peer voice 12 voip
                       shutdown
                       destination-pattern 4006
                       session target ipv4:100.100.100.7
                      .
                      .
                      .

                      Q.931-Support Example

                      The following shows how a Cisco 3660 can be configured for E1 and PRI with network-side support using VoIP. Note that Serial5/0:15 and Serial6/0:15 are configured as ISDN E1 PRI (network side) and that Serial5/1:15 and Serial6/1:15 are configured as ISDN E1 PRI (user side).

                      .
                      .
                      .
                      hostname router3660
                      !
                      memory-size iomem 20
                      voice-card 5
                      !
                      voice-card 6
                      !
                      ip subnet-zero
                      !
                      isdn switch-type primary-net5
                      isdn voice-call-failure 0
                      !
                      controller E1 3/0
                       pri-group timeslots 1-5,16
                      !
                      controller E1 3/1
                       pri-group timeslots 1-31
                      !
                      controller E1 4/0
                       pri-group timeslots 1-31
                      !
                      controller E1 4/1
                       pri-group timeslots 1-31
                      !
                      interface FastEthernet0/0
                       ip address 10.7.72.9 255.255.255.0
                       speed auto
                       half-duplex
                      !
                      interface FastEthernet0/1
                       ip address 10.100.100.7 255.255.255.0
                       no keepalive
                       duplex auto
                       speed auto
                       hold-queue 1000 in
                      !
                      interface Serial2/0
                       no ip address
                       shutdown
                      !
                      interface Serial2/1
                       no ip address
                       shutdown
                      !
                      interface Serial2/2
                       no ip address
                       shutdown
                      !
                      interface Serial2/3
                       no ip address
                       shutdown
                      !
                      interface Serial5/0:15
                       no ip address
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn overlap-receiving
                       isdn incoming-voice voice
                       isdn protocol-emulate network
                       no cdp enable
                      !
                      interface Serial5/1:15
                       no ip address
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn incoming-voice voice
                       fair-queue 64 256 0
                       no cdp enable
                      !
                      interface Serial6/0:15
                       no ip address
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn incoming-voice voice
                       fair-queue 64 256 0
                       isdn protocol-emulate network
                       no cdp enable
                      !
                      interface Serial6/1:15
                       no ip address
                       ip mroute-cache
                       no logging event link-status
                       isdn switch-type primary-qsig
                       isdn incoming-voice voice
                       fair-queue 64 256 0
                       no cdp enable
                      !
                      ip classless
                      ip route 223.255.254.254 255.255.255.255 FastEthernet0/0
                      no ip http server
                      !
                      voice-port 1/0/0
                      timing hookflash-in 0
                      !
                      voice-port 1/0/1
                      	timing hookflash-in 0
                      !
                      voice-port 5/0:15
                       compand-type a-law
                      !
                      voice-port 5/1:15
                       compand-type a-law
                       cptone DE
                      !
                      voice-port 6/0:15
                       compand-type a-law
                       cptone DE
                      !
                      voice-port 6/1:15
                       no echo-cancel enable
                       compand-type a-law
                       cptone DE
                      !
                      dial-peer voice 1 pots
                       shutdown
                       destination-pattern 21...
                      direct-inward-dial
                      !
                      dial-peer voice 51 voip
                       shutdown
                       destination-pattern 6504007
                      session target ipv4:100.100.100.3
                      !
                      dial-peer voice 2 pots
                       shutdown
                       destination-pattern 21...
                      direct-inward-dial
                       port 5/1:15
                      !
                      dial-peer voice 3 voip
                       shutdown
                       destination-pattern 22...
                      session target ipv4:100.100.100.6
                      !
                      dial-peer voice 5 pots
                       shutdown
                       destination-pattern 22...
                       modem passthrough system
                       direct-inward-dial
                       prefix 4006
                      !
                      dial-peer voice 13 pots
                       shutdown
                       destination-pattern 21...
                      direct-inward-dial
                       port 6/0:15
                      !
                      dial-peer voice 6 pots
                       destination-pattern 21...
                      direct-inward-dial
                       port 6/1:15
                      !
                      dial-peer voice 20 pots
                       incoming called-number 4...
                       destination-pattern 4007
                      direct-inward-dial
                       port 5/0:15
                       prefix 4007
                      !
                      dial-peer voice 21 pots
                       destination-pattern 4006
                      direct-inward-dial
                       port 5/0:15
                       prefix 4006
                      !
                      line con 0
                       transport input none
                      line aux 0
                      line vty 0 4
                       login
                      !
                      end

                      Additional References

                      General ISDN References

                      • "Overview of ISDN Voice Interfaces" on page 3 --Describes relevant underlying technology; lists related documents, standards, MIBs, and RFCs; and describes how to obtain technical assistance
                      • Additional References--Lists additional ISDN references

                      References Mentioned in This Chapter