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Table of Contents

Channelized E1 and Channelized T1 Setup Commands

Channelized E1 and Channelized T1 Setup Commands

This chapter describes commands needed to configure channelized E1 and channelized T1 for the following:

In Cisco IOS Release 11.3, all commands supported on the Cisco 7500 series are also supported on the Cisco 7000 series.

autodetect encapsulation

To enable automatic detection of the encapsulation types in operation over a point-to-point link to a specified serial or ISDN interface, use the autodetect encapsulation interface configuration command. To disable automatic, dynamic detection of the encapsulation types in operation on a link, use the no form of this command.

autodetect encapsulation encapsulation-type
no autodetect encapsulation

Syntax Description

encapsulation-type

One or both of the encapsulation keywords v120 and ppp.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Release 11.2.

At least one encapsulation type is required in the command, but you can specify additional encapsulation types.

Use this command to enable the specified serial or ISDN interface to accept calls and dynamically change the encapsulation in effect on the interface when the remote device does not signal the call type. For example, if an ISDN call does not identify the call type in the Lower Layer Compatibility fields and is using an encapsulation that is different from the one configured on the interface, the interface can change its encapsulation type dynamically.

This command enables interoperation with ISDN terminal adapters that use V.120 encapsulation but do not signal V.120 in the call setup message. An ISDN interface that by default answers a call as synchronous serial with PPP encapsulation can change its encapsulation and answer such calls.

Automatic detection is attempted for the first 10 seconds after the link is established or the first five packets exchanged over the link, whichever is first.

Related Commands

You can use the master indexes or search online to find documentation of related commands.

encapsulation

cas-custom

To customize E1 R2 signaling parameters for a particular E1 channel group on a channelized E1 line, use the cas-custom controller configuration command. Use the no form of this command to disable the signaling customization.

cas-custom channel
no cas-custom channel

Syntax Description

channel

Specifies a single channel group number, which can be between 0 and 30. This channel group number must match the channel number specified in the cas-group command.

Default

No customized signaling parameters are set. If you do not specify a country name using the country name command, which is described in Table 46, ITU is the selected default signal.

Command Mode

Controller configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2 P.

The customization parameters set by the cas-custom channel command are applied to the same channel group number used in the cas-group channel timeslots range type signal command. These channel group numbers must match. Otherwise, the customized features specified by the cas-custom command will not be applied to the cas-group command's configuration. The signaling customization will not take effect. See Example 1.

However, you will not need to configure or set more than one channel group number per E1 line in most cases. Though rarely used, it is possible to split a single E1 (timeslots 1 to 31) into two groups (for example, 1 to 15 on group 1 and timeslots 17 to 31 in group 2).

Cisco strongly recommends that you use the use-defaults option when specifying a particular country type. See the country name command in Table 46. This additional keyword ensures that all the local country settings are correctly enabled. For example, issue the country greece use-defaults command. If the use-defaults option is not specified, generic ITU will be the default setting for all countries. See Example 2.

You can configure the system to deviate from a country's default settings as defined by Cisco. To do this, choose from the following list of commands described in Table 46: ani-digits min number max number, answer-signal {group-a | group-b} number, caller-digits number, category number, dnis-digits min number max number, invert-abcd, ka number, kd number, metering, nc-congestion, and unused-abcd value. To return a country back to its country specific default settings, issue the country name use-defaults command. To return a country back to the ITU standard, issue the default country name use-defaults command. See Example 3 and Example 4.


Note Only integrated MICA modems support E1 R2 signaling on Cisco access servers.

Table 46 shows a list of command options in cas-custom mode, which is used to customize R2 signaling settings. Some switches require you to fine tune your R2 settings. Do not tamper with these commands unless you understand exactly how your switch will be affected.


Table 46: Available Commands in Cas-Custom Mode
Command Purpose

ani-digits min number max number

Requested number of ANI digits for each call. All calls that do not match the minimum and maximum settings that you specify will be dropped. The minimum number of collected digits is set by min number. Replace the number variable with a value between 0 and 64. The maximum number of collected digits is set by max number. Replace the number variable with a value between 5 and 64. By default, ANI digits are not collected, which is the ITU standard.

answer-signal {group-a | group-b} number

Answer signal to be used. You can specify the group A signal or the group B signal. The signal number can be 1  to  15. Default is group-b 6, which is the ITU default.

caller-digits number

Specifies the number of digits the access server needs to collect before it requests ANI or CallerID information. The digits can be from 1 to 10. Default is 1, which is the ITU default.

category number

Specifies the category type of the incoming call, which is mapped to a group signal number. Signal numbers from 1 to 15 are available. Default is 1, which is the ITU default.

country name use-defaults

Specifies the local country, regional, and some corporation settings for R2 signaling. Replace the name variable with one of the following supported country names. Cisco strongly recommends that you include the use-defaults option, which enables the default settings for a specific country. Default country setting is ITU.

  • argentina use-defaults

  • australia use-defaults

  • brazil use-defaults

  • china use-defaults

  • columbia use-defaults

  • costarica use-defaults

  • easteurope use-defaults

The easteurope option supports Croatia, Russia, and the Slovak Republic.

  • ecuador-itu use-defaults

  • ecuador-lme use-defaults

  • greece use-defaults

  • guatemala use-defaults

  • hongkong-china use-defaults

The Hong Kong option uses the China variant.

  • indonesia use-defaults

  • israel use-defaults

  • itu

ITU is the signaling default. ITU provides support for the following list of countries: Denmark, Finland, Germany, Russia (ITU variant), Hong Kong (ITU variant), and South Africa (ITU variant).
The expression "ITU variant" means that there are multiple R2 signaling types deployed in the specified country, but Cisco supports the ITU variant.

  • korea use-defaults

  • malaysia use-defaults

  • newzealand use-defaults

  • paraguay use-defaults

  • peru use-defaults

  • philippines use-defaults

  • saudiarabia use-defaults

  • singapore use-defaults

  • southafrica-panaftel use-defaults

The South Africa option uses the Panaftel variant.

  • telmex use-defaults

  • telnor use-defaults

The Telemex and Telnor corporations are supported for Mexico.

  • thailand use-defaults

  • uruguay use-defaults

  • venezuela use-defaults

  • vietnam use-defaults

default

Sets a command to its default setting.

dnis-digits min number max number

Requested number of DNIS digits for each call. All calls that do not match the minimum and maximum settings that you specify will be dropped. The minimum number of collected digits is set by min number. Replace the number variable with a value between 0 and 64. The maximum number of collected digits is set by max number. Replace the number variable with a value between 5 and 64. By default, DNIS digits are not collected, which is the ITU standard.

exit

Takes you out of cas custom mode.

invert-abcd

Inverts the ABCD bits before tx and after rx. This feature is disabled by default, which is the ITU default.

ka number

Specifies the KA signal code. You can choose 1 to 15. Default is 0, which is the ITU default.

kd number

Specifies the KD signal code. You can choose 1 to 15. Default is 0, which is the ITU default.

metering

Specifies sending a metering pulse when the access server is making an outgoing call. Metering is turned off by default, which is the ITU default.

nc-congestion

Specifies the noncompelled congestion signal. This signal is sent to the central office when the access server is congested and cannot accept the call. The default is B4, which is the ITU default.

no

Negates a command or sets its defaults.

request-category

DNIS digits to be collected before requesting category. A category specifies different priority levels for different calls within R2, such as data calls verses voice calls. This infomation is primarily used for the switches that forward the calls to the NAS.

For example, India needs the category requested after the first DNIS digit.

unused-abcd value

Specifies unused ABCD bit values, which can have a 0 or 1 bit value. This feature is disabled by default, which is the ITU default.

Example 1

The following example displays the available signaling parameters after you enter cas-custom mode. Notice that the same channel group 1 is specified in the cas-group command and the cas-custom command.

router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z
router(config)# controller e1 1
router(config-controller) cas-group 1 timeslots 1-31 type r2-digital r2-compelled
router(config-controller) cas-custom 1
router(config-ctrl-cas)# ?
CAS custom commands:
  ani-digits        Expected number of ANI digits
  answer-signal     Answer signal to be used
  caller-digits     Digits to be collected before requesting CallerID
  category          Category signal
  country           Country Name
  default           Set a command to its defaults
  dnis-digits       Expected number of DNIS digits
  exit              Exit from cas custom mode
  invert-abcd       invert the ABCD bits before tx and after rx
  ka                KA Signal
  kd                KD Signal
  metering          R2 network is sending metering signal
  nc-congestion     Non Compelled Congestion signal
  no                Negate a command or set its defaults
  request-category  DNIS digits to be collected before requesting category
  unused-abcd       Unused ABCD bit values

Example 2

You can localize your R2 configuration for a specific country. Don't forget to include the use-defaults option as described in Table 46. For example, use the country argentina use-defaults command for a R2 scenario in Argentina.

router(config-ctrl-cas)# country ?
    argentina             Argentina
  australia             Australia
  brazil                Brazil
  china                 China
  columbia              Columbia
  costarica             Costa Rica
  easteurope            East Europe
  ecuador-itu           Ecuador ITU
  ecuador-lme           Ecuador LME
  greece                Greece
  guatemala             Guatemala
  hongkong-china        Hong Kong (China variant)
  indonesia             Indonesia
  israel                Israel
  itu                   ITU
  korea                 Korea
  malaysia              Malaysia
  newzealand            New Zealand
  paraguay              Paraguay
  peru                  Peru
  philippines           Philippines
  saudiarabia           Saudi Arabia
  singapore             Singapore
  southafrica-panaftel  South Africa Panaftel
  telmex                Telmex
  telnor                Telnor
  thailand              Thailand
  uruguay               Uruguay
  venezuela             Venezuela
  vietnam               Vietnam
router(config-ctrl-cas)# country argentina ?
  use-defaults   Use Country defaults
  <cr>
 
router(config-ctrl-cas)# country argentina use-defaults

Example 3

The following example customizes the signaling for channel group 1. The configuration collects 3 digits before it requests ANI information for analog calls received on a Cisco AS5300 in Argentina.

router(config-controller)# cas-custom 1
router(config-ctrl-cas)# country argentina use-defaults
router(config-ctrl-cas)# caller-digits 3
router(config-controller)# ^z
router(config)# 

Example 4

Because cas-custom mode gives you the flexibility to customize R2 parameters, the margin for user error increases. Therefore, the Cisco IOS software enables you to return a country back to its default R2 settings using the use-defaults option. The following example begins by bringing up Argentina's default settings, changing a few customization parameters, then returning the Argentina R2 setting back to its original state.

router(config-ctrl-cas)# country argentina use-defaults
router(config-ctrl-cas)# caller-digits 3
router(config-ctrl-cas)# unused-abcd 1
router(config-ctrl-cas)# metering
router(config-ctrl-cas)# country argentina use-defaults

Related Command

You can use the master indexes or search online to find documentation of related commands.

cas-group (controller E1)

cas-group (controller e1)

To configure channel associated signaling on an E1 controller, use the cas-group controller configuration command. Use the no form of this command to disable channel associated signaling for one or more timeslots.

cas-group channel timeslots range type signal
no cas-group channel timeslots range type signal

Syntax Description

channel

Specifies a single channel group number. Replace the channel variable with a number between 0 and 30.

timeslots range

Specifies a timeslot range, which can be from 1 to 31. You can specify a timeslot range (for example, 1-31), individual timeslots separated by commas (for example 1, 3, 5), or a combination of the two (for example 1-14, 15, 17-31). The 16th time slot is reserved for out-of-band signaling.

type signal

Specifies the type of channel associated signaling. Configure the signal type that your central office uses. Replace the signal variable with one of the following signal types:

· e&m-fgb [dtmf [dnis] | mf [dnis]]---Specifies ear and mouth channel signaling with feature group B support, which includes the wink start protocol. The optional signal tones are DTMF and MF with the option of provisioning DNIS.

· e&m-fgd---Specifies ear and mouth channel signaling with feature group D support, which includes the wink start protocol.

· e&m-immediate-start---Specifies ear and mouth channel signaling with immediate start support.

· fxs-ground-start---Specifies Foreign Exchange Station ground start signaling support.

· fxs-loop-start---Specifies Foreign Exchange Station loopstart signaling support.

· p7---Specifies the P7 switch type.

· sas-ground-start---Specifies Special Access Station ground start signaling support.

· sas-loop-start---Specifies Special Access Station loopstart signaling support.

· r1-modified {ani-dnis | dnis}

· r2-analog [dtmf | r2-compelled [ani] | r2-non-compelled [ani] | r2-semi-compelled [ani]]

· r2-digital [dtmf | r2-compelled [ani] | r2-non-compelled [ani] | r2-semi-compelled [ani]]

· r2-pulse [dtmf | r2-compelled [ani] | r2-non-compelled [ani] | r2-semi-compelled [ani]]

The following descriptions are provided for the previous R1 and R2 syntax bullets:

r1-modified ani-dnis---Indicates R1 signaling will collect ani and dnis information.

r1-modified dnis---Indicates R1 signaling will collect only dnis information.

r2-analog---Specifies R2 ITU Q411 analog line signaling, which reflects the on/off switching of a tone in frequency-division multiplexing circuits (before TDM circuits were created). The tone is used for line signaling.

r2-digital---Specifies R2 ITU Q421 digital line signaling, which is the most common signaling configuration. The A and B bits are used for line signaling.

r2-pulse---Specifies R2 ITU supplement 7 pulse line signaling, which is a transmitted pulse that indicates a change in the line state.

dtmf---Specifies the DTMF tone signaling.

r2-compelled [ani]---Specifies R2 compelled register signaling. You can also specify provisioning the ANI addr option.

r2-non-compelled [ani]---Specifies R2 noncompelled register signaling.

r2-semi-compelled [ani]---Specifies R2 semicompelled register signaling.

Default

For ISDN PRI, the cas-group command is disabled.

If the channelized E1 is not configured as a PRI, the default value for line signaling is e&m-fgb and the default value for tone signaling is DTMF.

The R1 signaling default is ani-dnis.

R2 signaling types have DNIS turned on by default.

Command Mode

Controller configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2 P.
The R1 options first appeared in Cisco IOS Release 11.3 P.
The R2 options first appeared in Cisco IOS Release 11.3 T.

Use this command to configure support for incoming and outgoing call signals (such as on-hook and off-hook) on each E1 controller.

If you specify the timeslot range 1-31, the system software automatically uses the 16th timeslot to transmit the channel associated signaling.

The signaling you configure on the access server must match the signaling used by the central office. For example if the central office switch is forwarding R2 analog signaling to a Cisco AS5300, then the access server's E1 controller must also be configured for R2 analog signaling (r2-analog).

All R2 signaling options have DNIS support turned on by default. If you enable the ani option, the collection of DNIS information is still performed. Specifying the ani option does not disable DNIS. DNIS is the number being called. ANI is the caller's number. For example, if you are configuring router A to call router B, then the DNIS number is router B, the ANI number is router A. ANI is very similar to Caller ID.

To customize the R2 signaling parameters, refer to the cas-custom controller configuration command. When you enable the cas-group command, the cas-custom command is automatically setup to be polled for configuration information. However, unless you enable or turn on specific features with the cas-custom command, the cas-custom feature has an empty set of signaling parameters.


Note Only integrated MICA modems support E1 R2 signaling on Cisco access servers.

DNIS is automatically collected for modem pools and R2 tone signaling. You do not need to specify the collection of DNIS information with the cas-group command. However, if you are using non-R2 tone signaling, the system must be manually configured to collect DNIS information. For non-R2 cas signaling, DNIS collection is done only for E&M-fgb.

Examples

In most cases, you will configure the same channel associated signaling on each E1 controller. The following examples configure signaling and customized parameters on controller E1 2 using the cas-group and cas-custom controller configuration commands. The actual channel associated signaling is configured on the 16th timeslot, which is the reason why this timeslot does not come up in the following output.

router# configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
router(config)# controller e1 2
router(config-controller)# cas-group 1 timeslots 1-31 type r2-digital r2-compelled 
ani
router(config-controller)#
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 1 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 2 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 3 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 4 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 5 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 6 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 7 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 8 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 9 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 10 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 11 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 12 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 13 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 14 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 15 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 17 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 18 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 19 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 20 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 21 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 22 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 23 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 24 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 25 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 26 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 27 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 28 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 29 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 30 is up
%DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 31 is up

The following example shows all the supported E1 signaling types on a Cisco AS5300.

router(config-controller)# cas-group 1 timeslots 1-31 type ?
  e&m-fgb              E & M Type II FGB
  e&m-fgd              E & M Type II FGD
  e&m-immediate-start  E & M Immediate Start
  fxs-ground-start     FXS Ground Start
  fxs-loop-start       FXS Loop Start
  p7                   P7 Switch
  r2-analog            R2 ITU Q411
  r2-digital           R2 ITU Q421
  r2-pulse             R2 ITU Supplement 7
  sas-ground-start     SAS Ground Start
  sas-loop-start       SAS Loop Start
router(config-controller)# cas-group 1 timeslots 1-31 type r2-analog ?
  dtmf               DTMF tone signalling
  r2-compelled       R2 Compelled Register Signalling
  r2-non-compelled   R2 Non Compelled Register Signalling
  r2-semi-compelled  R2 Semi Compelled Register Signalling
  <cr>

R2 signaling parameters can be customized with the cas-custom controller configuration command:

router(config-controller)# cas-custom 1
router(config-ctrl-cas)# ?
CAS custom commands:
  caller-digits  Digits to be collected before requesting CallerID
  category       Category signal
  country        Country Name
  default        Set a command to its defaults
    exit           Exit from cas custom mode
  invert-abcd    invert the ABCD bits before tx and after rx
  metering       R2 network is sending metering signal
  nc-congestion  Non Compelled Congestion signal
  no             Negate a command or set its defaults

The following example would configure R1 Signaling on a Cisco AS5200 (T1 interface) and specify the collection of both ani and dnis information:

5200(config-controller)#  cas-group 1 timeslots 1-24 type r1-modified ani-dnis

cas-group (controller t1)

To configure channelized T1 timeslots with robbed bit signaling, use the cas-group controller configuration command. Use the no form of this command to disable robbed bit signaling for one or more timeslots.

cas-group channel timeslots range type signal
no cas-group channel timeslots range type signal

Syntax Description

channel

Specifies a single channel group number, which can be between 0 and 23.

timeslots range

Specifies a range of timeslots, which are from 1 to 24. Timeslots can be specified by ranges or groups. For example, 1-24 or 1-15 and 17-24.

type signal

Specifies a type of robbed bit signaling. Replace the signal variable with one of the following signal types. The keywords service, data, and voice are used for switched 56K configuration. These keywords are described at the end of this syntax description table.

· e&m-fgb [dtmf [dnis] | [service {data | voice}]] | [service {data | voice}] | [mf [dnis] | [service {data | voice}]]---Specifies ear and mouth channel signaling with feature group B support, which includes the wink start protocol. Use the options dtmf [dnis] to configure DTMF tone signaling with optional DNIS provisioning. Use the options mf [dnis] to configure MF tone signaling with optional DNIS provisioning. Use the options service {data | voice} for switched 56K configurations. (See the end of this syntax description table for more information about these switched 56K keywords.)

· e&m-fgd [service {data | voice}]---Specifies ear and mouth channel signaling with feature group D support, which includes the wink start protocol. Use the options service {data | voice} for switched 56K configurations. (See the end of this syntax description table for more information.)

· e&m-immediate-start [service {data | voice}]---Specifies ear and mouth channel signaling with immediate start support. Use the options service {data | voice} for switched 56K configurations. (See the end of this syntax description table for more information.)

· fxs-ground-start [service {data | voice}]---Specifies Foreign Exchange Station ground start signaling support. Use the options [service {data | voice} for switched 56K configurations. (See the end of this syntax description table for more information.)

· fxs-loop-start [service {data | voice}]--- Specifies Foreign Exchange Station loopstart signaling support. Use the options service {data | voice} for switched 56K configurations. (See the end of this syntax description table for more information.)

· r1-modified ani-dnis---Indicates R1 signaling will collect ani and dnis information.

· r1-modified dnis---Indicates R1 signaling will collect only dnis information.

· sas-ground-start [service {data | voice}]---Specifies Special Access Station ground start signaling support. Use the options service {data | voice} for switched 56K configurations. (See the end of this syntax description table for more information.)

· sas-loop-start [service {data | voice}]---Specifies Special Access Station loopstart signaling support. Use the options service {data | voice} for switched 56K configurations.

· service---(Optional) Specifies the type of services provided for scenarios involving switched 56K connections. Do not include this option in the cas-group command statement if you are not using the access server to provide switched 56K connections.

· data---Enables switched 56K digital data services on the specified range of timeslots. The data is directly read from the timeslot or channel. Timeslots configured with this option will not accept analog modem calls.

· voice---Enables analog modem services on the specified range of timeslots. The call is forwarded to the modems for demodulation. Timeslots configured with this option will not accept switched 56K digital calls.

Default

For ISDN PRI, the cas-group command is disabled.

If the channelized T1 is not configured as a PRI, the default value for line signaling is e&m-fgb and the default value for tone signaling is DTMF.

The R1 signalling default value is ani-dnis.

Command Mode

Controller configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.
The service, data, and voice signaling options first appeared in Cisco IOS Release 11.3 T.
The R1 options first appeared in Cisco IOS Release 11.3 P.

Use the cas-group command to configure T1 controllers with different types of robbed bit signaling, such as on-hook and off-hook for E&M feature group B (e&m-fgb).

If you want to collect DNIS information on a T1 controller, you must manually configure it on the access server. DNIS collection is performed only for E&M-fgb. To collect DTMF DNIS for E&M-fgb under a controller T1 configuration, issue the cas-group 0 timeslots 1-24 type e&m-fgb dtmf dnis command. To collect MF DNIS for E&M-fgb, issue the cas-group 0 timeslots 1-24 type e&m-fgb mf dnis command.

Examples

The following example configures all 24 channels with ear and mouth robbed bit signaling with feature group B support:

router(config)# controller T1 0
router(config-controller)# cas-group 1 timeslots 1-24 type e&m-fgb
router(config-controller)#
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 1 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 2 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 3 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 4 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 5 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 6 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 7 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 8 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 9 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 10 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 11 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 12 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 13 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 14 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 15 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 16 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 17 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 18 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 19 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 20 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 21 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 22 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 23 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 24 is up

The following example configures the required signaling to support modem pooling and the digital number identification service (DNIS) over channelized T1 lines on a Cisco AS5300. The only supported signaling and tone types for modem pooling over CT1 RBS are E&M feature group B, DTMF tones, and MF tones. By configuring DNIS as part of the cas-group command, the system can collect DNIS digits for incoming calls, which can be redirected to specific modem pools setup for different customers or services. Additionally, you must be running MICA modems in the system and have at least 10% of your total modems in the default modem pool. Free modems are needed in the default pool to detect the incoming called number or DNIS before handing the call off to the appropriate modem pool. Therefore, two modems are actually needed to handle each incoming call.


Note Make sure that your switch provides inband address information for incoming analog calls before you enable this feature.
router# configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
router(config)# controller t1 0
router(config-controller)# cas-group 0 timeslots 1-24 type e&m-fgb dtmf dnis
router(config-controller)# exit
router(config)#
router(config)# modem-pool accounts1
router(config-modem-pool)# pool-range 30-50
router(config-modem-pool)# called-number 2000 max-conn 21
router(config-modem-pool)# exit
router(config)#

The next example configures a Cisco AS5200 to accept switched 56K digital calls on both of its T1 controllers:

router(config)# controller T1 0
router(config-controller)# cas-group 1 timeslots 1-24 type e&m-fgb service data
router(config-controller)# framing esf
router(config-controller)# clock source line secondary
router(config-controller)# linecode b8zs
router(config-controller)# exit
router(config)# controller T1 1
router(config-controller)# cas-group 1 timeslots 1-24 type e&m-fgb service data
router(config-controller)# framing esf
router(config-controller)# clock source line primary
router(config-controller)# linecode b8zs
router(config-controller)# exit
router(config)# copy running-config startup-config

The next example configures switched 56K digital services and analog modem services on one controller. Each service is assigned its own range of timeslots. Switched 56K calls are assigned to timeslots 1 through 15. Analog modem calls are assigned to timeslots 16 through 24. However, you must use different channel group numbers in each cas-group command entry.

router(config)# controller T1 0
router(config-controller)# cas-group 0 timeslots 1-15 type e&m-fgb service data
router(config-controller)# cas-group 1 timeslots 16-24 type e&m-fgb service voice
router(config-controller)# framing esf
router(config-controller)# clock source line secondary
router(config-controller)# linecode b8zs
router(config-controller)# exit
The following example would configure R1 Signaling on a Cisco AS5200 (T1 interface) and 
specify the collection of both ani and dnis information:

5200(config-controller)#  cas-group 1 timeslots 1-24 type r1-modified ani-dnis

channel-group

Use the channel-group controller configuration command to define the timeslots that belong to each T1 or E1 circuit. Use the no form of this command to clear the timeslots for the T1 or E1 circuit.

channel-group number timeslots range [speed {48 | 56 | 64}]
no channel-group [number timeslots range]

Syntax Description

number

Channel-group number. When configuring a T1 data line, channel-group numbers can be values from 0 to  23. When configuring an E1 data line, channel-group numbers can be values from 0 to  30.

timeslots range

One or more timeslots or ranges of timeslots belonging to the channel group. The first timeslot is numbered 1. For a T1 controller, the timeslot range is from 1 to 24. For an E1 controller, the timeslot range is from 1 to 31.

speed {48 | 56 | 64}

(Optional) Line speed (in kilobits per second) of the T1 or E1 link.

Default

The default line speed when configuring a T1 controller is 56 kbps.

The default line speed when configuring an E1 controller is 64 kbps.

Command Mode

Controller configuration

Usage Guidelines

Use this command in configurations where the router or access server must communicate with a T1 or  E1 fractional data line. The channel-group number may be arbitrarily assigned and must be unique for the controller. The timeslot range must match the timeslots assigned to the channel group. The service provider defines the timeslots that comprise a channel group.

Example

The following example defines three channel groups. Channel-group 0 consists of a single timeslot, channel-group 8 consists of 7 timeslots and runs at a speed of 64 kbps per timeslot, and channel-group 12 consists of a single timeslot.

channel-group 0 timeslots 1
channel-group 8 timeslots 5,7,12-15,20 speed 64
channel-group 12 timeslots 2

Related Commands

You can use the master indexes or search online to find documentation of related commands.

framing
linecode

clear controller

Use the clear controller EXEC command to reset the T1 or E1 controller.

clear controller {t1 | e1} slot/port (Cisco 7200 series and Cisco 7500 series)
clear controller {t1 | e1} number

Syntax Description

t1

Specifies the T1 controller.

e1

Specifies the E1 controller.

slot/port

Backplane slot number and port number on the interface. See your hardware installation manual for the specific slot and port numbers.

number

Network interface module (NIM) number, in the range 0 through 2.

Command Mode

EXEC

Examples

The following example resets the T1 controller at slot 4, port 0 on a Cisco 7500 series router:

clear controller t1 4/0

The following example resets the E1 controller at NIM 0:

clear controller e1 0

Related Commands

You can use the master indexes or search online to find documentation of related commands.

controller e1
controller t1

clock source (controller)

Use the clock source controller configuration command to set the E1 line clock source for the Cisco  AS5200.

clock source line {primary | secondary}
no clock source line {primary | secondary}

Syntax Description

line

E1 line from which the clocking is taken.

primary

Primary TDM clock source.

secondary

Secondary TDM clock source.

Default

Primary TDM clock source is taken from the E1 controller 0 on the Cisco  AS5200.

Secondary TDM clock source is taken from the E1 controller 1 on the Cisco  AS5200.

Command Mode

Controller configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Configure the clock source line primary command on the controller that takes the most reliable clocking from an E1 line. Configure the clock source line secondary command on the controller that has the next best known clocking. With this configuration, the primary line clocking is backed up to the secondary line if the primary clocking shuts down.

Examples

The following example configures the Cisco  AS5200 to use the E1 controller 0 as the primary clocking source and the E1 controller 1 as the secondary clocking source:

controller e1 0
 framing esf 
 linecode hdb3
 pri-group timeslots 1-23
 clock source line primary
!
controller e1 1
 framing esf 
 linecode hdb3
 pri-group timeslots 1-23
 clock source line secondary

Related Commands

You can use the master indexes or search online to find documentation of related commands.

framing
linecode

clock source (Cisco AS5200)

To select the clock source for the time-division multiplexing (TDM) bus in a Cisco AS5200/AS5300 access server, use the clock source interface configuration command. The no form of this command configures the clock source to its default setting.

clock source {line {primary | secondary} | internal}
no clock source line {primary | secondary}

Syntax Description

line

Clock source on the active line.

primary

Primary TDM clock source.

secondary

Secondary TDM clock source.

internal

Free-running clock (also known as internal clock) as the clock source.

Defaults

Primary TDM clock source from the T1 0 controller

Secondary TDM clock source from the T1 1 controller

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

To use the clocking coming in from a T1 line, configure the clock source line primary command on the T1 interface that has the most reliable clocking. Configure the clock source line secondary command on the T1 interface that has the next best known clocking. With this configuration, the primary line clocking is backed up to the secondary line if the primary clocking shuts down.

Example

The following example configures the Cisco AS5200 access server to use T1  controller 0 as the primary clock source and T1 controller 1 as the secondary clock source:

controller t1 0
  clock source line primary
controller t1 1
  clock source line secondary

controller

To configure a T1 or E1 controller and enter controller configuration mode, use the controller global configuration command.

controller {t1 | e1} slot/port (on the Cisco 7200 and Cisco 7500 series)
controller {t1 | e1} number (on the Cisco AS5200 and Cisco AS5300 series)

Syntax Description

t1

T1 controller.

e1

E1 controller.

slot/port

Backplane slot number and port number on the interface. See your hardware installation manual for the specific values and slot numbers.

number

Network processor module (NPM) number, in the range 0 through 2.

Default

No T1 or E1 controller is configured.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Release 10.0; the e1 keyword was added in Release 10.3

This command is used in configurations where the router or access server is intended to communicate with a T1 or E1 fractional data line. Additional parameters for the T1 or E1 line must be configured for the controller before the T1 or E1 circuits can be configured by means of the interface global configuration command.

This command is used on a Cisco 7500 series router.

This command does not apply to the Cisco 7200 series.

Examples

The following example configures the MIP in slot 4, port 0 of a Cisco 7500 as a T1 controller:

controller t1 4/0

The following example configures NIM 0 of a Cisco 4000 as a T1 controller:

controller t1 0

Related Commands

You can use the master indexes or search online to find documentation of related commands.

channel-group
clear controller lex
clear controller t1
clock source (controller)
framing
linecode
show controllers e1
show controller t1

cpp authentication

To enable negotiation of authentication with a router or bridge that supports the Combinet Proprietary Protocol (CPP) and that is calling in to this router, use the cpp authentication interface configuration command. To disable negotiation of CPP authentication, use the no form of this command.

cpp authentication
no cpp authentication

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

Use this command for authenticating the device that is calling in to this router.

Use this command to communicate over an ISDN interface with Combinet devices that do not support Point-to-Point Protocol (PPP) but do support the Combinet Proprietary Protocol (CPP).

Currently, most Combinet devices do support PPP. Cisco routers can communicate over ISDN with these devices by using PPP encapsulation, which supports both routing and fast switching.

This command is supported on ISDN and dialer interfaces.

This command uses names and passwords from the username password command. It does not support the Terminal Access Controller Access Control System (TACACS).

Example

The following example configures a Primary Rate Interface to communicate with a Combinet bridge that does not support PPP:

controller t1 1/1
 framing esf 
 linecode b8zs
 pri-group timeslots 1-23
 isdn switchtype primary-4ess
interface Serial1/1:23
 encapsulation cpp
 cpp callback accept
cpp authentication

Related Commands

You can use the master indexes or search online to find documentation of related commands.

cpp callback accept
encapsulation cpp
username password

cpp callback accept

To enable the router to accept callback from a Combinet router or bridge that supports the Combinet Proprietary Protocol (CPP), use the cpp callback accept interface configuration command. use the no form of this command to disable callback acceptance.

cpp callback accept
no cpp callback accept

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

Use this command to communicate over an ISDN interface with Combinet devices that do not support PPP but do support CPP.

Currently, most Combinet devices do support PPP. Cisco routers can communicate over ISDN with these devices by using PPP encapsulation, which supports both routing and fast switching.

This command is supported on ISDN and dialer interfaces.

Example

The following example configures the PRI interface serial1/1:23 to communicate with a Combinet router or bridge that does not support PPP:

controller t1 1/1
 framing esf 
 linecode b8zs
 pri-group timeslots 1-23
 isdn switchtype primary-4ess
!
interface Serial1/1:23
 encapsulation cpp
 cpp callback accept
 cpp authentication

Related Commands

You can use the master indexes or search online to find documentation of related commands.

cpp authentication
encapsulation cpp

description (controller)

To add a description to an E1 or T1 controller, use the description controller configuration command. Use the no form of this command to remove the description.

description string
no description

Syntax Description

string

Comment or a description to help you remember what is attached to the controller.

Default

No description is added.

Command Mode

Controller configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

The description command is meant solely as a comment to be put in the configuration to help you remember what certain E1 or T1 controllers are used for. The description affects the MIP interfaces only and appears in the output of the show controllers e1, show controllers t1, and more  system:running-config EXEC commands.

Example

The following example describes a 3174 controller:

controller t1
 description 3174 Controller for test lab

Related Commands

You can use the master indexes or search online to find documentation of related commands.

more system:running-config
show controllers e1
show controller t1

description (interface)

To add a description to an interface configuration, use the description interface configuration command. Use the no form of this command to remove the description.

description string
no description

Syntax Description

string

Comment or a description to help you remember what is attached to this interface.

Default

No description is added.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 9.21.

The description command is meant solely as a comment to be put in the configuration to help you remember what certain interfaces are used for. The description appears in the output of the following EXEC commands: more nvram:startup-config, show interfaces, and more system:running-config.

Example

The following example shows how to add a description for a T1 interface:

interface serial 0
 description Fractional T1 line to Mountain View -- 128 kbps

Related Commands

You can use the master indexes or search online to find documentation of related commands.

more nvram:startup-config
more system:running-config
show interfaces

dialer outgoing

To configure the dialer map class for a Network Specific Facilities (NSF) dialing plan to support outgoing calls, use the dialer outgoing map-class dialer configuration command.

dialer outgoing classname

Syntax Description

classname

Keyword for a specified AT&T Primary-4ESS NSF dialing plan; the following keywords are supported: sdn, megacomm, and accunet.

Default

This command is disabled; no classname is provided.

Command Mode

Map-class dialer configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.0.

Use this command only to define a dialer map class for an NSF call-by-call service offered by AT&T on Primary-4ESS ISDN switches. This command is not used for other vendors and switch types.

Example

The following partial example shows a class called sdn to support the Software Defined Network (SDN) dialing plan. For a more complete example using all the related commands, see the map-class dialer command.

dialer outgoing sdn

Related Commands

You can use the master indexes or search online to find documentation of related commands.

dialer map class
dialer voice-call
isdn nsf-service
map-class dialer

dialer voice-call

To configure the dialer map class for an NSF dialing plan to support outgoing voice calls, use the dialer voice-call map-class dialer configuration command.

dialer voice-call

Syntax Description

This command has no arguments and keywords.

Default

This command is disabled.

Command Mode

Map-class dialer configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.0.

Example

The following partial example defines a dialer map class to support the SDN dialing plan and to support outgoing voice calls. For a more complete example using all the related commands, see the map-class dialer command.

map-class dialer sdnplan
dialer voice-call
dialer outgoing sdn

Related Commands

You can use the master indexes or search online to find documentation of related commands.

dialer map class
map-class dialer
dialer outgoing

encapsulation cpp

To enable encapsulation for communication with routers or bridges using the Combinet Proprietary Protocol (CPP), use the encapsulation cpp interface configuration command. Use the no form of this command to disable CPP encapsulation.

encapsulation cpp
no encapsulation cpp

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

Use this command to communicate over an ISDN interface with Combinet devices that do not support PPP but do support CPP.

Currently, most Combinet devices do support PPP. Cisco routers can communicate over ISDN with these devices by using PPP encapsulation, which supports both routing and fast switching.

Combinet devices support only IP, IPX, and bridging. For AppleTalk, Cisco routers automatically perform half-bridging with Combinet devices.

This command is supported on ISDN BRIs and Primary Rate Interfaces (PRIs) only.

Example

The following example configures PRI interface serial 1/1:23 to communicate with a Combinet router or bridge that does not support PPP:

contoller t1 1/1
 framing esf 
 linecode b8zs
 pri-group timeslots 1-23
 isdn switchtype primary-4ess
!
interface Serial1/1:23
 encapsulation cpp
 cpp callback accept
cpp authentication

Related Commands

You can use the master indexes or search online to find documentation of related commands.

cpp authentication
cpp callback accept

framing

Use the framing controller configuration command to select the frame type for the T1 or E1 data line.

framing {sf | esf} (for T1 lines)
framing {crc4 | no-crc4} [australia] (for E1 lines)

Syntax Description

sf

Specifies Super Frame as the T1 frame type.

esf

Specifies Extended Super Frame as the T1 frame type.

crc4

Specifies CRC4 frame as the E1 frame type.

no-crc4

Specifies no CRC4 frame as the E1 frame type.

australia

(Optional) Specifies the E1 frame type used in Australia.

Defaults

Super Frame is the default on a T1 line.

CRC4 frame is the default on an E1 line.

Command Mode

Controller configuration

Usage Guidelines

Use this command in configurations where the router or access server is intended to communicate with T1 or E1 fractional data line. The service provider determines which framing type, either sf, esf, or crc4, is required for your T1/E1 circuit.

Example

The following example selects Extended Super Frame as the T1 frame type:

framing esf

Related Commands

You can use the master indexes or search online to find documentation of related commands.

channel-group
linecode

interface serial

To specify a serial interface created on a channelized E1 or channelized T1 controller (for ISDN PRI, channel-associated signaling, or robbed-bit signaling), use the interface serial global configuration command.

interface serial slot/port:timeslot    (on the Cisco 7200 and Cisco 7500 series)
interface serial number:timeslot    (on the Cisco AS5200 and Cisco 4000 series)

Syntax Description

slot/port

Slot number and port number where the channelized E1 or T1 controller is located.

number

Channelized E1 or T1 controller number.

timeslots

For ISDN, the D channel timeslot, which is :23 channel for channelized T1 and the :15 for channelized E1. PRI timeslots are in the range 0 to 23 for channelized T1 and in the range 0  to 30 for channelized E1.

For channel-associated signaling or robbed-bit signaling, the channel group number.

The colon (:) is required.

On a dual port card, it is possible to run channelized on one port and primary rate on the other port.

Default

You must explicitly specify a serial interface.

Command Mode

Global configuration

Usage Guidelines

This command first appeared prior to Release 10.0.

The D channel is always the :23 channel for T1 and the :15 for E1.

Examples

The following example configures channel groups on timeslots 1 to 11 and ISDN PRI on timeslots 12 to 24 of T1 controller 0. Then the examples configures the first two channel groups as serial interfaces 0:0 and 0:1.

controller t1 0 
channel-group 0 timeslot 1-6 
channel-group 1 timeslot 7 
channel-group 2 timeslot 8 
channel-group 3 timeslot 9-11 
pri-group timeslots 12-24
!
interface serial 0:0
ip address 131.108.13.2 255.255.255.0
encapsulation ppp
!
interface serial 0:1
ip address 131.108.13.3 255.255.255.0
encapsulation ppp

The following example configures ISDN PRI on T1 controller 4/1 and then configures the D channel on the resulting serial interface 4/1:23:

controller t1 4/1
framing crc4
linecode hdb3
pri-group timeslots 1-24
interface serial 4/1:23
ip address 131.108.13.1 255.255.255.0
encapsulation ppp

Related Commands

You can use the master indexes or search online to find documentation of related commands.

circuit
controller
show interfaces
show controllers t1 call-counters

isdn answer1, isdn answer2

To have the router verify a called-party number or subaddress number in the incoming setup message for ISDN PRI calls, if the number is delivered by the switch, use the isdn answer1 interface configuration command. To remove the verification request, use the no form of this command.

isdn answer1 [called-party-number][:subaddress]
no isdn answer1 [called-party-number][:subaddress]

To have the router verify an additional called-party number or subaddress number in the incoming setup message for ISDN PRI calls, if the number is delivered by the switch, use the isdn answer2 interface configuration command. To remove this second verification request, use the no form of this command.

isdn answer2 [called-party-number][:subaddress]
no isdn answer2 [called-party-number][:subaddress]

Syntax Description

called-party-number

(Optional) Telephone number of the called party. At least one value---called-party-number or subaddress---must be specified.

:subaddress

(Optional) Subaddress number, 20 or fewer characters long, used for ISDN multipoint connections. At least one value---called-party-number or subaddress---must be specified.

Use the colon (:) when you configure both the called party number and the subaddress, or when you configure only the subaddress.

Default

The router does not verify the called-party or subaddress number.

Command Mode

Interface configuration

Usage Guidelines

If you do not specify the isdn answer1 or isdn answer2 command, all calls are processed and/or accepted. If you specify the isdn answer1 or isdn answer2 command, the router must verify the incoming called-party number and the subaddress before processing and/or accepting the call. The verification proceeds from right to left for the called-party number; it also proceeds from right to left for the subaddress number.

You can configure just the called-party number or just the subaddress. In such a case, only that part is verified. To configure a subaddress only, include the colon (:) before the subaddress number.

You can declare a digit a "don't care" digit by entering it as an x or X. In such a case, any incoming digit is allowed.

Examples

In the following partial configuration example, 5552222 is the called-party number and 1234 is the subaddress:

interface serial 4/1:0
  isdn answer1 5552222:1234

In the following partial configuration example, only the subaddress is configured:

interface serial 4/1:0
  isdn answer1 :1234

isdn bchan-number-order

To configure a PRI ISDN interface to make outgoing call selection in ascending or descending order, use the isdn bchan-number interface configuration command. To restore the default (descending order), either use the no form of this command or simply reconfigure the interface with the new value.

isdn bchan-number-order {ascending | descending}
no isdn bchan-number-order

Syntax Description

ascending

Makes the outgoing B channel selection in ascending order as follows:

· Channels 1 to 24 for a T1 controller

· Channels 1 to 31 for an E1 controller

descending

Makes the outgoing B channel selection in descending order as follows:

· Channels 24 to 1 for a T1 controller

· Channels 31 to 1 for an E1 controller

Default

Descending

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3 T.

This command instructs the router 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).

This command is for PRI configuration only.

Example

The following example configures the outgoing B channel order on a PRI interface to be in ascending order. The router will select the lowest available B channel beginning with channel B1.

interface serial5:10
 isdn bchan-number-order ascending

isdn caller

To configure ISDN caller ID screening, use the isdn  caller interface configuration command. To disable this feature, use the no form of this command.

isdn caller number
no isdn caller number

Syntax Description

number

Telephone number for which to screen. Specify an x or X to represent a single "don't-care" character. The maximum length of each number is 25 characters.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Release 11.2 F.

This command configures the router to accept calls from the specified number.

Caller ID screening is available on Cisco 7200 and 7500 series, Cisco 4000 series, Cisco 3000 series, and Cisco 2500 series routers that have one or more BRIs.

The maximum length of each number is 25 characters. There is no limit on the numbers you can specify per interface.


Note Caller ID screening requires a local switch that is capable of delivering the caller ID to the router. If you enable caller ID screening but do not have such a switch, no calls are allowed in.

Examples

The following example configures the router to accept a call with a delivered caller ID equal to 4155551234:

isdn caller 4155551234

The following example configures the router to accept a call with a delivered caller ID having 41555512 and any numbers in the last two positions:

isdn caller 41555512xx

Related Commands

You can use the master indexes or search online to find documentation of related commands.

show dialer

isdn calling-number

To configure an ISDN PRI serial interface to present a billing number of the device making the outgoing call, use the isdn calling-number interface configuration command. To remove a previously configured calling number, use the no form of this command.

isdn calling-number calling-number
no isdn calling number

Syntax Description

calling-number

Number of the device making the outgoing call; only one entry is allowed and it is limited to 16 digits.

Default

No calling number is presented.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

An interface can have only one ISDN calling-number entry.

This command is intended for use when the network offers better pricing on calls in which devices present the calling number (that is, the billing number). The calling number information is included in the outgoing Setup message.


Note This command can be used with all ISDN PRI switches.

Example

The following example first configures the T1 and then, configures D channel interface to present the billing number 4233570925 when it makes outgoing calls:

controller t1 1/1
 framing esf 
 linecode b8zs
 pri-group timeslots 1-23
 isdn switchtype primary-4ess 
!
interface serial 1/1:23
 ip address 7.1.1.1 255.255.255.0
 encapsulation ppp
 isdn calling-number 4233570925
 dialer map ip 7.1.1.2 name dallas 14193460913

Related Commands

You can use the master indexes or search online to find documentation of related commands.

interface serial

isdn fast-rollover-delay

To specify the time delay between successive attempts to dial out to a number, use the isdn fast-rollover-delay interface configuration command. Use the no form of this command to disable the fast-rollover-delay feature.

isdn fast-rollover-delay seconds
no
isdn fast-rollover-delay

Syntax Description

seconds

Number of seconds to delay before dialing the next dialer map after receiving an ISDN message indicating the current call will not succeed.

Default

This command is disabled by default. If enabled, the default value of the timer is 0 seconds.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared at Cisco IOS Release 11.1.

This command provides a timer separate from the dialer wait-for-carrier timer to control the amount of time that elapses before calls are redialed. This delay is provided to allow the old call to be torn down completely before the new call is attempted.

When using PPP callback, this command specifies the time delay before the callback is done. This command is necessary on some ISDN switches because the new call may be attempted before the old call is completely torn down. This causes the call back to fail.

Use this command when all the following conditions are true:

If this has occurred, set isdn fast-rollover-delay to 5 seconds and try again.

A delay of 5 seconds should cover most cases. Configure sufficient delay to make sure the ISDN RELEASE_COMPLETE message has been sent or received before making the fast rollover call. Use the debug isdn q931 command to display this information.

Example

The following partial example sets the fast-rollover delay that is suggested when all the conditions specified above are true.

isdn fast-rollover-delay 5 

Related Commands

You can use the master indexes or search online to find documentation of related commands.

dialer map
dialer wait-for-carrier
ppp callback

isdn incoming-voice data

To answer incoming voice calls at a configured rate (overriding the incoming data rate in the call), use the isdn incoming-voice data interface configuration command. Use the no form of this command to disable ISDN incoming-voice data.

isdn incoming-voice data [56 | 64]
no isdn incoming-voice data

Syntax Description

56

(Optional) Answers all voice calls at 56 kbps.

64

(Optional) Answers all voice calls at 64 kbps.

Default

ISDN incoming-voice data is not applied.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

When used without a keyword, this command checks the bearer capacity.

If this command is used, the dialing side must dial at 56 kbps.

Ordinarily, a data device ignores incoming voice calls, but the tariff structure for data and voice calls might make it less expensive to do "data over voice" calls.

Example

The following partial example for channelized T1 configures the D channel (hence, all B channels) to answer all incoming voice calls at 56 kbps:

interface serial 0:23
 isdn incoming-voice data 56

isdn incoming-voice modem

To allow all incoming ISDN voice calls to access onboard modems, use the isdn incoming voice modem interface configuration command. Use the no form of this command to stop all incoming voice calls from accessing the modems.

isdn incoming-voice modem
no isdn incoming-voice modem

Syntax Description

This command has no keywords or arguments.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1 AA.

Configure this command on each D channel in the access server or router. Incoming circuit switched data calls are not affected by this command.

This command is not used for channelized T1 or channelized E1 network scenarios. These networks use traditional analog trunks that have in-band signaling. Use the isdn  incoming-voice  modem command only when you are using ISDN.

Example

The following example enables incoming and outgoing ISDN calls to route to the modems using the D channel serial interface:

interface serial 0:23
 isdn incoming-voice modem

isdn not-end-to-end

For incoming calls, to override the speed that the network reports it will use to deliver the call data, use the isdn not-end-to-end interface configuration command.

isdn not-end-to-end {56 | 64}

Syntax Description

56

Answers all voice calls at 56 kbps.

64

Answers all voice calls at 64 kbps.

Default

The default line speed is 64 kbps.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

This command might be needed to handle incoming calls properly. Although a call might originate at a speed of 56 kbps, the network or internetworking networks might improperly deliver the call to the user at a speed of 64 kbps. This creates a speed mismatch and causes the data to be garbled. Enabling this command makes the router look more closely at the information elements of the incoming call to determine a speed.

A speed mismatch can occur when the source and destination ISDN ports do not belong to the same network.

Example

The following example sets the line speed for incoming calls to 56 kbps:

isdn not-end-to-end 56

isdn nsf-service

To configure Network Specific Facilities (NSF) on an ISDN PRI for outgoing calls configured as voice calls, use the isdn  nsf-service command. To remove NSF on an ISDN PRI, use the no form of this command.

isdn nsf-service {magacom | sdn}
no isdn nsf-service [magacom | sdn]

Syntax Description

megacom

Dial voice calls using AT&T Megacom NSF.

sdn

Dial voice calls using AT&T SDN NSF.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3(5)T.

This command is used on a PRI (channelized T1) to request NSF services supported on AT&T 4ESS switch types only.

Example

The following example sets outgoing voice calls to use AT&T SDN NSF:

int s0:23
    isdn-nsf-service sdn

Related Commands

You can use the master indexes or search online to find documentation of related commands.

dialer map class
dialer voice-call
map-class dialer

isdn sending-complete

To specify that the Sending Complete information element (IE) is included in the outgoing SETUP message, use the isdn sending-complete interface configuration command. Use the no form of this command to disable the Sending Complete IE.

isdn sending-complete
no isdn sending-complete

Syntax Description

This command has no arguments and keywords.

Default

This command is disabled by default.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3.

Some switches in some countries want a Sending Complete information element to be included in the outgoing SETUP message to indicate that the entire number is included. The Sending Complete IE is needed for some countires, such as Hong Kong and Taiwan, and the isdn sending-complete command forces it to be sent.

Example

The following example enables sending complete IE information:

interface serial 0:15
 description connected to PBX 61886
 ip address 7.1.1.1 255.255.255.0
 encapsulation ppp
 isdn sending-complete
 dialer idle-timeout 20
 dialer map ip 7.1.1.2 name rudder 61884
 dialer map ip 7.1.1.3 name goodie 61885
 dialer-group 1
 ppp authentication chap

isdn switch-type

To specify the central office switch type on the ISDN interface, use the isdn switch-type global and interface configuration command. Use the no form of this command to disable the switch on the ISDN interface.

isdn switch-type switch-type
no
isdn switch-type

Syntax Description

switch-type

Service provider switch type; see Table 47 for a list of supported switches.

Default

The switch type defaults to none, which disables the switch on the ISDN interface.

Command Mode

This command first appeared as a global command in Cisco IOS Release 9.21
This command first appeared as an interface command in Cisco IOS Release 11.3 T.

Usage Guidelines

To disable the switch on the ISDN interface, specify isdn switch-type none.

Table 47 lists supported PRI switch types by geographic area.


Note If you are using the Multiple ISDN Switch Types feature to apply the ISDN switch types to different interfaces, refer to the "Setting up ISDN Basic Rate Service" chapter in the Dial Solutions Configuration Guide.

Table 47:
ISDN Service Provider PRI Switch Types    
Keywords by Area Switch Type

none

No switch defined

Australia

primary-ts014

Australia PRI switches

Europe

primary-net5

European, New Zealand and Asia ISDN PRI switches (covers the Euro-ISDN E-DSS1 signaling system and is ETSI-compliant)

Japan

primary-ntt

Japanese ISDN PRI switches

North America

primary-4ess

AT&T 4ESS switch type for the U.S.

primary-5ess

AT&T 5ESS switch type for the U.S.

primary-dms100

NT DMS-100 switch type for the U.S.

primary-ni

National ISDN switch type


Note Cisco IOS Release 11.3T introduced ISDN switch type changes. The command parser will still accept the following switch types: basic-nwnet3, vn2, and basic-net3; however, when viewing the NVRAM configuration, the basic-net3 or vn3 switch types are displayed respectively.

Examples

The first example configures the French VN3 ISDN switch type:

isdn switch-type vn3

The following example demonstrates the Multiple ISDN Switch Type Feature. The global ISDN switch type setting is basic-net3. The PRI interface (channelized  T1  controller), is configured to use isdn  switch-type  primary-net5 and BRI interface  0 is configured for isdn  switch-type  basic-ni (formerly isdn switch-type basic-ni1).

isdn switch-type basic-net3
!
interface serial0:23
 isdn switch-type primary-net5
 ip address 172.21.24.85 255.255.255.0
!
interface BRI0
 isdn switch-type basic-ni

linecode

Use the linecode controller configuration command to select the line-code type for the T1 or E1 line.

linecode {ami | b8zs | hdb3}

Syntax Description

ami

Specifies alternate mark inversion (AMI) as the line-code type. Valid for T1 or E1 controllers; the default for T1 lines.

b8zs

Specifies B8ZS as the line-code type. Valid for T1 controller only.

hdb3

Specifies high-density bipolar 3 (hdb3) as the line-code type. Valid for E1 controller only; the default for E1 lines.

Defaults

AMI is the default for T1 lines.

High-density bipolar 3 is the default for E1 lines.

Command Mode

Controller configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

Use this command in configurations where the router or access server must communicate with T1 fractional data lines. The T1 service provider determines which line-code type, either ami or b8zs, is required for your T1 circuit. Likewise, the E1 service provider determines which line-code type, either ami or hdb3, is required for your E1 circuit.

Example

The following example specifies B8ZS as the line-code type:

linecode b8zs

loopback (controller)

To loop an entire E1 line (including all channel-groups defined on the controller) toward the line and back toward the router or access server, use the loopback controller configuration command. To remove the loop, use the no form of this command.

loopback
no loopback

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Controller configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

This command is useful for testing the DCE device (CSU/DSU) itself.

To show interfaces currently in loopback operation, use the show interfaces loopback EXEC command.

Example

The following example configures the loopback test on the E1 line:

controller e1 0
 loopback

loopback local (controller)

To loop an entire T1 line (including all channel-groups defined on the controller) toward the line and the router or access server, use the loopback local controller configuration command. To remove the loop, use the no form of this command.

loopback local
no loopback local

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Controller configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

This command is useful for testing the DCE device (CSU/DSU) itself.

To show interfaces currently in loopback operation, use the show interfaces loopback EXEC command.

Example

The following example configures the loopback test on the T1 line:

controller t1 0
 loopback local

loopback local (interface)

To loop a channelized T1 or channelized E1 channel-group, use the loopback local interface configuration command. To remove the loop, use the no form of this command.

loopback local
no loopback local

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

This command is useful for looping a single channel-group in a channelized environment without disrupting the other channel-groups.

To show interfaces currently in loopback operation, use the show interfaces loopback EXEC command.

Example

The following example configures the loopback test on the T1 line:

interface serial 1/0:22
 loopback local

Related Commands

You can use the master indexes or search online to find documentation of related commands.

show interfaces loopback

loopback remote (controller)

To loop packets from a MIP through the CSU/DSU, over a dedicated T1 link, to the remote CSU at the single destination for this T1 link and back, use the loopback remote controller configuration command. To remove the loop, use the no form of this command.

loopback remote
no loopback remote

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Controller configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

This command applies only when the device supports the remote function. It is used for testing the data communication channels.

For MIP cards, this controller configuration command applies if only one destination exists at the remote end of the cloud, the entire T1 line is dedicated to it, and the device at the remote end is a CSU (not a CSU/DSU). This is an uncommon case; MIPs are not usually used in this way.

To show interfaces currently in loopback operation, use the show interfaces loopback EXEC command.

Example

The following example configures a remote loopback test:

interface serial 0
 loopback remote

Related Commands

You can use the master indexes or search online to find documentation of related commands.

show interfaces loopback

loopback remote (interface)

To loop packets through a CSU/DSU, over a DS-3 link or a channelized T1 link, to the remote CSU/DSU and back, use the loopback remote interface configuration command. To remove the loop, use the no form of this command.

loopback remote
no loopback remote

Default

This command is disabled.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

This command applies only when the remote CSU/DSU device supports the function. It is used for testing the data communication channels. The loopback usually is performed at the line port, rather than the DTE port, of the remote CSU/DSU.

For a multiport interface processor (MIP) connected to a network via a channelized T1 link, the loopback remote interface configuration command applies if the remote interface is served by a DDS line (56 kbps or 64 kbps) and the device at the remote end is a CSU/DSU. In addition, the CSU/DSU at the remote end must react to latched DDS CSU loopback codes. Destinations that are served by other types of lines or that have CSU/DSUs that do not react to latched DDS CSU codes cannot participate in an interface remote loopback. Latched DDS CSU loopback code requirements are described in AT&T specification TR-TSY-000476, "OTGR Network Maintenance Access and Testing."

To show interfaces currently in loopback operation, use the show interfaces loopback EXEC command.

Example

The following example configures a remote loopback test:

interface serial 0
 loopback remote

Related Commands

You can use the master indexes or search online to find documentation of related commands.

show interfaces loopback

map-class dialer

To define a class of shared configuration parameters for outgoing calls from an ISDN interface, use the map-class dialer global configuration command.

map-class dialer classname

Syntax Description

classname

Unique class identifier.

Default

Disabled; no class name is provided.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.0.

The classname in the map-class dialer command used to specify the class must be the same as a classname used in a dialer map command.

This command is used to define classes of calls for PPP callback for DDR, for ISDN Advice of Charge, and for Network Specific Facilities (NSF) call-by-call dialing plans.

For NSF call-by-call support on ISDN Primary-4ESS switches only, use one of the dialing-plan keywords listed in Table 48.


Table 48: NSF Keywords and Supported Services
Keyword NSF Dialing Plan Data Voice International

sdnplan

SDN

Yes

Yes

GSDN (Global SDN)

megaplan

MEGACOMM

No

Yes

Yes

accuplan

ACCUNET

Yes

Yes

Yes

Examples

The following example configures the PPP callback server on an ISDN BRI interface on a router in Atlanta. The callback server requires an enable timeout and a map class to be defined.

interface BRI0
 ip address 7.1.1.7 255.255.255.0
 encapsulation ppp
 dialer callback-secure
 dialer enable-timeout 2
 dialer map ip 7.1.1.8 name atlanta class dial1 81012345678901
 dialer-group 1
 ppp callback accept
 ppp authentication chap
!
map-class dialer dial1
 dialer callback-server username

The following example configures the ISDN switch type to Primary-4ESS and configures ISDN PRI on T1 controller 1/0, and sets the D channel for dialer map classes that reference the NSF dialing plans. Finally, the map-class dialer command uses a dialing plan keyword and the dialer outgoing command refers to the same plan.

isdn switch-type primary-4ess
!
!
controller T1 1/0
 framing esf
 linecode b8zs
 pri-group timeslots 1-24
!
interface Serial1/0:23
 description This is the DMS D-channel 415-390-9503
 ip address 6.1.1.3 255.255.255.0
 encapsulation ppp
 no keepalive
 dialer map ip 6.1.1.1 name tommyjohn class sdnplan 14085770715
 dialer map ip 6.1.1.2 name angus class megaplan 14085773775
 dialer map ip 6.1.1.4 name angus class accuplan 14085773778
 dialer-group 1
 ppp authentication chap
!
map-class dialer sdnplan
 dialer outgoing sdn
!
map-class dialer megaplan
 dialer voice-call
 dialer outgoing mega
!
map-class dialer accuplan
 dialer outgoing accu

Related Commands

You can use the master indexes or search online to find documentation of related commands.

dialer map class
map-class dialer
dialer outgoing

pri-group

To specify ISDN Primary Rate Interface (PRI) on a channelized T1 or channelized E1 controller, use the pri-group controller configuration command. Use the no form of this command to remove the ISDN PRI configuration.

pri-group [timeslots range]
no pri-group

Syntax Description

timeslots range

(Optional) Specifies a single range of values from 1  to 23 for channelized T1 and from 1 to 31 for channelized E1.

Default

This command is disabled.

Command Mode

Controller configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

Before you enter the pri-group command, you must specify an ISDN PRI switch type and an E1 or T1 controller.

Examples

The following example configures ISDN PRI on all timeslots of the T1 controller in slot 1 port 0 on a Cisco  7200 series router:

isdn switch-type primary-4ess
controllers t1 1/0
 framing esf  linecode b8zs
 pri-group timeslots 1-24

The following example configures E1 controller 0 on a Cisco  4000 series router for ISDN PRI on all timeslots:

isdn switch-type primary-net5
controllers e1 0/0
 framing esf  linecode b8zs
 pri-group timeslots 1-31

Related Commands

You can use the master indexes or search online to find documentation of related commands.

controllers e1
controllers t1

framing
isdn switch-type
linecode b8zs

show controllers e1

Use the show controllers e1 privileged EXEC command to display information about the E1 links supported by the Network Processor Module (NPM) (Cisco 4000) or MultiChannel Interface Processor (MIP) (Cisco 7500 series).

show controllers e1 [slot/port] (on the Cisco 7500 series)
show controller e1 number (on the Cisco 4000 series)

Syntax Description

slot/port

(Optional) Backplane slot number and port number on the interface. See your hardware installation manual for the specific slot and port numbers.

number

Network processor module (NPM) number, in the range 0 through 2.

Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

The NPM or MIP can query the port adapters to determine their current status. Issue a show controllers e1 command to display statistics about the E1 link.

If you specify a slot and port number, each 15-minute period will be displayed.

This command displays controller status that is specific to the controller hardware. The information displayed is generally useful for diagnostic tasks performed by technical support personnel only.

Sample Displays

The following is sample output from the show controllers e1 command on the Cisco 7500 series:

Router# show controllers e1
e1 0/0 is up.
  Applique type is Channelized E1 - unbalanced
  Framing is CRC4, Line Code is HDB3
  No alarms detected.
  Data in current interval (725 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

Following is an example of the show controllers e1 display including the board identifier type:

Router# show controllers e1
E1 4/1 is up.
  No alarms detected.
    Framing is CRC4, Line Code is hdb3
  Data in current interval (0 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 79 15 minute intervals): 
     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 

Table 49 describes the show controllers e1 display fields.


Table 49: Show Controllers E1 Field Descriptions
Field Description

e1 0/0 is up.

The E1 controller 0 in slot 0 is operating. The controller's state can be up, down, or administratively down. Loopback conditions are shown by (Locally Looped) or (Remotely Looped).

Applique type

The applique type is shown and will indicate balanced or unbalanced.

Framing is

Shows the current framing type.

Linecode is

Shows the current linecode type.

No alarms detected.

Any alarms detected by the controller are displayed here. Possible alarms are as follows:

  • Transmitter is sending remote alarm.

  • Transmitter is sending AIS.

  • Receiver has loss of signal.

  • Receiver is getting AIS.

  • Receiver has loss of frame.

  • Receiver has remote alarm.

  • Receiver has no alarms.

Data in current interval (725 seconds elapsed)

Shows the current accumulation period, which rolls into the 24 hour accumulation every 15 minutes. Accumulation period is from 1 to 900  seconds. The oldest 15-minute period falls off the back of the 24-hour accumulation buffer.

Line Code Violations

Indicates the occurrence of either a Bipolar Violation (BPV) or Excessive Zeros (EXZ) error event.

Path Code Violations

Indicates a frame synchronization bit error in the D4 and E1-noCRC formats, or a CRC error in the ESF and E1-CRC formats.

Slip Secs

Indicates the replication or deletion of the payload bits of a DS1 frame. A slip might be performed when there is a difference between the timing of a synchronous receiving terminal and the received signal.

Fr Loss Secs

Indicates the number of seconds an Out Of Frame (OOF) error is detected.

Line Err Secs

Line Errored Seconds (LES) is a second in which one or more Line Code Violation errors are detected.

Degraded Mins

A Degraded Minute is one in which the estimated error rate exceeds 1E-6 but does not exceed 1E-3.

Errored Secs

In ESF and E1 CRC links, an Errored Second is a second in which one of the following are detected: one or more Path Code Violations; one or more Out of Frame defects; one or more Controlled Slip events; a detected AIS defect.

For SF and E1 no-CRC links, the presence of Bipolar Violations also triggers an Errored Second.

Bursty Err Secs

A second with fewer than 320 and more than 1 Path Coding Violation error, no Severely Errored Frame defects and no detected incoming AIS defects. Controlled slips are not included in this parameter.

Severely Err Secs

For ESF signals, a second with one of the following errors: 320 or more Path Code Violation errors; one or more Out of Frame defects; a detected AIS defect.

For E1-CRC signals, a second with one of the following errors: 832 or more Path Code Violation errors; one or more Out of Frame defects.

For E1-nonCRC signals, a second with 2048 Line Code Violations or more.

For D4 signals, a count of 1-second intervals with Framing Errors, or an Out of Frame defect, or 1544 Line Code Violations.

Unavail Secs

A count of the total number of seconds on the interface.

show controllers e1 call-counters

To view the total number of calls and call durations on a E1 controller, use the show controllers e1 call-counters Privileged EXEC command.

show controllers e1 number call-counters

Syntax Description

number

Controller number (for example 0, 1, 2, or 3).

Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3 T.

This command displays the E1 controller status as calls, such as switched 56K digital calls, pass through the hardware.

Sample Display

The following is sample display output for the show controller e1 1 call-counters command.

router# show controller E1 1 call-counters
E1 1:
  DS0's Active: 0
  DS0's Active High Water Mark: 0
  TimeSlot   Type   TotalCalls   TotalDuration
      1       cas           0       00:00:00
      2       cas           0       00:00:00
      3       cas           0       00:00:00
      4       cas           0       00:00:00
      5       cas           0       00:00:00
      6       cas           0       00:00:00
      7       cas           0       00:00:00
      8       cas           0       00:00:00
      9       cas           0       00:00:00
     10       cas           0       00:00:00
     11       cas           0       00:00:00
     12       cas           0       00:00:00
     13       cas           0       00:00:00
     14       cas           0       00:00:00
     15       cas           0       00:00:00
     16       cas           0       00:00:00
     17       cas           0       00:00:00
     18       cas           0       00:00:00
     19       cas           0       00:00:00
     20       cas           0       00:00:00
     21       cas           0       00:00:00
     22       cas           0       00:00:00
     23       cas           0       00:00:00
     24       cas           0       00:00:00
 
Total DS0's Active High Water Mark: 7

Table 50 describes the sample display output for the show controller e1 1 call-counters command.


Table 50:
Field Description

E1 number:

Number of the E1 controller.

DS0's Active:

Displays the number of DS0s channels that are currently active.

DS0's Active High Water Mark:

Number of active DS0s that are approaching the threshold ceiling of the system.

TimeSlot

Timeslot number used on the controller for the specified DS0.

Type

Type of call occupying the timeslot. This entry is usually CAS or ISDN PRI.

TotalCalls

How many calls came in on this timeslot or DS0.

TotalDuration

How long the last call lasted.

Total DS0's Active High Water Mark:

Total number of active DS0s that are approaching the threshold ceiling of the system.

Show Controllers E1 Call-Counters Field Descriptions

Related Commands

You can use the master indexes or search online to find documentation of related commands.

show controllers e1 cas-data
cas-group (controller e1)

show controllers e1 cas-data

To display internal call switching module information about the switched 56k data channels, use the show controllers e1 cas-data Privileged EXEC command.

show controllers e1 number cas-data

Syntax Description

number

Controller number (for example 0, 1, 2, or 3).

Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3 T.

Sample Display

The following is sample output for the show controller e1 1 cas-data command.

router# show controller e1 1 cas-data
Device Pool: Dev-SW56-pool
Number of SW56 vdev in pool: 48
Number of active connections: 0
No free SW56 device in pool: 0
SW56 max allocated messages: 96
 
E1 1:
 SW56(slot/subcont/bchan)=0/1/0, hwidb=0x00867348
  csm_state(0x00000100)=CSM_IDLE_STATE, csm_event_proc=0x0006CCC2
  total_call_duration=00:00:00
  invalid_event_count=0, wdt_timeout_count=0
  ic_failure=0, ic_complete=0, remote_link_disc=0
  csm_status(0): VDEV_STATUS_UNLOCKED
  wdt_timestamp_started is not activated
 SW56(slot/subcont/bchan)=0/1/1, hwidb=0x0086EC58
  csm_state(0x00000100)=CSM_IDLE_STATE, csm_event_proc=0x0006CCC2
  total_call_duration=00:00:00
  invalid_event_count=0, wdt_timeout_count=0
  ic_failure=0, ic_complete=0, remote_link_disc=0
  csm_status(0): VDEV_STATUS_UNLOCKED
  wdt_timestamp_started is not activated
 SW56(slot/subcont/bchan)=0/1/2, hwidb=0x00876568
  csm_state(0x00000100)=CSM_IDLE_STATE, csm_event_proc=0x0006CCC2
  total_call_duration=00:00:00
  invalid_event_count=0, wdt_timeout_count=0
  ic_failure=0, ic_complete=0, remote_link_disc=0
  csm_status(0): VDEV_STATUS_UNLOCKED
  wdt_timestamp_started is not activated
 SW56(slot/subcont/bchan)=0/1/3, hwidb=0x0087DE78
  csm_state(0x00000100)=CSM_IDLE_STATE, csm_event_proc=0x0006CCC2
  total_call_duration=00:00:00
  invalid_event_count=0, wdt_timeout_count=0
  ic_failure=0, ic_complete=0, remote_link_disc=0
  csm_status(0): VDEV_STATUS_UNLOCKED
  wdt_timestamp_started is not activated
 SW56(slot/subcont/bchan)=0/1/4, hwidb=0x00885788
  csm_state(0x00000100)=CSM_IDLE_STATE, csm_event_proc=0x0006CCC2
  total_call_duration=00:00:00
  invalid_event_count=0, wdt_timeout_count=0
  ic_failure=0, ic_complete=0, remote_link_disc=0
  csm_status(0): VDEV_STATUS_UNLOCKED
  wdt_timestamp_started is not activated

Table 54 describes the sample display output for the show controller e1 1 cas-data command.


Table 51:
Field Description

Device Pool:

Type of pool in service, which is a logical grouping used to achieve a specific service.

Number of SW56 vdev in pool:

Number of serial devices used in the pool.

Number of active connections:

Number of active switched 56K active connections.

No free SW56 device in pool:

Number of switched 56K channels are available to accept calls.

SW56 max allocated messages:

Number of messages that are allocated to switched 56K services.

E1 number:

Number of the controller E1.

SW56(slot/subcont/bchan)=

Specified DS0 or timeslot used for the switched 56K service.

csm_state(0x00000100)=

Call state machine register.

total_call_duration=

How long the call lasted.

invalid_event_count=

Number of invalid event counters for the specified channel.

ic_failure=

Number of incoming call failures.

csm_status(0):

Call state machine register.

wdt_timestamp_started is not activated

Watch dog timer.

Show Controllers E1 Cas-Data Field Descriptions

Related Commands

You can use the master indexes or search online to find documentation of related commands.

show controllers e1 call-counters
cas-group (controller e1)

show controllers t1

To display information about the T1 links, use the show controllers t1 privileged EXEC command.

show controllers t1 [slot/port] (Cisco 7500 series)
show controller t1 number (Cisco 4000 series)

Syntax Description

slot/port

(Optional) Backplane slot number and port number on the interface. See your hardware installation manual for the specific slot and port numbers.

number

Network processor module (NPM) number, in the range 0 through  2.

Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

This command displays controller status that is specific to the controller hardware. The information displayed is generally useful for diagnostic tasks performed by technical support personnel only.

The NPM or MIP can query the port adapters to determine their current status. Issue a show controller t1 command to display statistics about the T1 link.

If you specify a slot and port number, each 15 minute period will be displayed.

Sample Display

The following is sample output from the show controller t1 command on the Cisco 7500 series:

Router# show controllers t1
T1 4/1 is up.
  No alarms detected.
    Framing is ESF, Line Code is AMI, Clock Source is line
  Data in current interval (0 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 79 15 minute intervals): 
     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 

Table 52 describes the show controllers t1 display fields.

Table 52: Show Controller T1 Field Descriptions
Field Description

T1 0/0 is up.

The T1 controller 0 in slot 0 is operating. The controller's state can be up, down, administratively down. Loopback conditions are shown by (Locally Looped) or (Remotely Looped).

No alarms detected.

Any alarms detected by the controller are displayed here. Possible alarms are as follows:

Transmitter is sending remote alarm.

Transmitter is sending AIS.

Receiver has loss of signal.

Receiver is getting AIS.

Receiver has loss of frame.

Receiver has remote alarm.

Receiver has no alarms.

Data in current interval (725 seconds elapsed)

Shows the current accumulation period, which rolls into the 24-hour accumulation every 15 minutes. Accumulation period is from 1 to 900  seconds. The oldest 15 minute period falls off the back of the 24-hour accumulation buffer.

Line Code Violations

Indicates the occurrence of either a Bipolar Violation (BPV) or Excessive Zeros (EXZ) error event.

Path Code Violations

Indicates a frame synchronization bit error in the D4 and E1-noCRC formats, or a CRC error in the ESF and E1-CRC formats.

Slip Secs

Indicates the replication or deletion of the payload bits of a DS1 frame. A slip may be performed when there is a difference between the timing of a synchronous receiving terminal and the received signal.

Fr Loss Secs

Indicates the number of seconds an Out Of Frame (OOF) error is detected.

Line Err Secs

Line Errored Seconds (LES) is a second in which one or more Line Code Violation errors are detected.

Degraded Mins

A Degraded Minute is one in which the estimated error rate exceeds 1E-6 but does not exceed 1E-3.

Errored Secs

In ESF and E1-CRC links, an Errored Second is a second in which one of the following are detected: one or more Path Code Violations; one or more Out of Frame defects; one or more Controlled Slip events; a detected AIS defect.

For D4 and E1-noCRC links, the presence of Bipolar Violations also triggers an Errored Second.

Bursty Err Secs

A second with fewer than 320 and more than 1 Path Coding Violation error, no Severely Errored Frame defects and no detected incoming AIS defects. Controlled slips are not included in this parameter.

Severely Err Secs

For ESF signals, a second with one of the following errors: 320 or more Path Code Violation errors; one or more Out of Frame defects; a detected AIS defect.

For E1-CRC signals, a second with one of the following errors: 832 or more Path Code Violation errors; one or more Out of Frame defects.

For E1-noCRC signals, a second with 2048 Line Code Violations or more.

For D4 signals, a count of 1-second intervals with Framing Errors, or an Out of Frame defect, or 1544 Line Code Violations.

Unavail Secs

A count of the total number of seconds on the interface.

show controllers t1 call-counters

To view the total number of calls and call durations on a T1 controller, use the show controllers t1 call-counters Privileged EXEC command.

show controllers t1 number call-counters

Syntax Description

number

Controller number (for example 0, 1, 2, or 3).

Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3 T.

This command displays the T1 controller status as calls, such as switched 56K digital calls, pass through the hardware.

Sample Display

The following is sample output for the show controller t1 1 call-counters command.

router# show controller t1 1 call-counters
T1 1:
  DS0's Active: 0
  DS0's Active High Water Mark: 0
  TimeSlot   Type   TotalCalls   TotalDuration
      1       cas           0       00:00:00
      2       cas           0       00:00:00
      3       cas           0       00:00:00
      4       cas           0       00:00:00
      5       cas           0       00:00:00
      6       cas           0       00:00:00
      7       cas           0       00:00:00
      8       cas           0       00:00:00
      9       cas           0       00:00:00
     10       cas           0       00:00:00
     11       cas           0       00:00:00
     12       cas           0       00:00:00
     13       cas           0       00:00:00
     14       cas           0       00:00:00
     15       cas           0       00:00:00
     16       cas           0       00:00:00
     17       cas           0       00:00:00
     18       cas           0       00:00:00
     19       cas           0       00:00:00
     20       cas           0       00:00:00
     21       cas           0       00:00:00
     22       cas           0       00:00:00
     23       cas           0       00:00:00
     24       cas           0       00:00:00
 
Total DS0's Active High Water Mark: 7

Table 53 describes the sample output for the show controller t1 1 call-counters command.


Table 53:
Field Description

T1 number:

Number of the T1 controller.

DS0's Active:

Displays the number of DS0s channels that are currently active.

DS0's Active High Water Mark:

Number of active DS0s that are approaching the threshold ceiling of the system.

TimeSlot

Timeslot number used on the controller for the specified DS0.

Type

Type of call occupying the timeslot. This entry is usually CAS or ISDN PRI.

TotalCalls

How many calls came in on this timeslot or DS0.

TotalDuration

How long the last call lasted.

Total DS0's Active High Water Mark:

Total number of active DS0s that are approaching the threshold ceiling of the system.

Show Controllers T1 Call-Counters Field Descriptions

Related Commands

You can use the master indexes or search online to find documentation of related commands.

show controllers t1 cas-data
cas-group (controller t1)

show controllers t1 cas-data

To display internal call switching module information about the switched 56k data channels, use the show controllers t1 cas-data Privileged EXEC command.

show controllers t1 number cas-data

Syntax Description

number

Controller number (for example 0, 1, 2, or 3).

Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3 T.

Sample Display

The following is sample output for the show controller t1 1 cas-data command.

router# show controller t1 1 cas-data
Device Pool: Dev-SW56-pool
Number of SW56 vdev in pool: 48
Number of active connections: 0
No free SW56 device in pool: 0
SW56 max allocated messages: 96
 
T1 1:
 SW56(slot/subcont/bchan)=0/1/0, hwidb=0x00867348
  csm_state(0x00000100)=CSM_IDLE_STATE, csm_event_proc=0x0006CCC2
  total_call_duration=00:00:00
  invalid_event_count=0, wdt_timeout_count=0
  ic_failure=0, ic_complete=0, remote_link_disc=0
  csm_status(0): VDEV_STATUS_UNLOCKED
  wdt_timestamp_started is not activated
 SW56(slot/subcont/bchan)=0/1/1, hwidb=0x0086EC58
  csm_state(0x00000100)=CSM_IDLE_STATE, csm_event_proc=0x0006CCC2
  total_call_duration=00:00:00
  invalid_event_count=0, wdt_timeout_count=0
  ic_failure=0, ic_complete=0, remote_link_disc=0
  csm_status(0): VDEV_STATUS_UNLOCKED
  wdt_timestamp_started is not activated
 SW56(slot/subcont/bchan)=0/1/2, hwidb=0x00876568
  csm_state(0x00000100)=CSM_IDLE_STATE, csm_event_proc=0x0006CCC2
  total_call_duration=00:00:00
  invalid_event_count=0, wdt_timeout_count=0
  ic_failure=0, ic_complete=0, remote_link_disc=0
  csm_status(0): VDEV_STATUS_UNLOCKED
  wdt_timestamp_started is not activated
 SW56(slot/subcont/bchan)=0/1/3, hwidb=0x0087DE78
  csm_state(0x00000100)=CSM_IDLE_STATE, csm_event_proc=0x0006CCC2
  total_call_duration=00:00:00
  invalid_event_count=0, wdt_timeout_count=0
  ic_failure=0, ic_complete=0, remote_link_disc=0
  csm_status(0): VDEV_STATUS_UNLOCKED
  wdt_timestamp_started is not activated
 SW56(slot/subcont/bchan)=0/1/4, hwidb=0x00885788
  csm_state(0x00000100)=CSM_IDLE_STATE, csm_event_proc=0x0006CCC2
  total_call_duration=00:00:00
  invalid_event_count=0, wdt_timeout_count=0
  ic_failure=0, ic_complete=0, remote_link_disc=0
  csm_status(0): VDEV_STATUS_UNLOCKED
  wdt_timestamp_started is not activated

Table 54 describes the sample display output for the show controller t1 1 cas-data command.


Table 54:
Field Description

Device Pool:

Type of pool in service, which is a logical grouping used to achieve a specific service.

Number of SW56 vdev in pool:

Number of serial devices used in the pool.

Number of active connections:

Number of active switched 56K active connections.

No free SW56 device in pool:

Number of switched 56K channels are available to accept calls.

SW56 max allocated messages:

Number of messages that are allocated to switched 56K services.

T1 number:

Number of the controller T1.

SW56(slot/subcont/bchan)=

Specified DS0 or timeslot used for the switched 56K service.

csm_state(0x00000100)=

Call state machine register.

total_call_duration=

How long the call lasted.

invalid_event_count=

Number of invalid event counters for the specified channel.

ic_failure=

Number of incoming call failures.

csm_status(0):

Call state machine register.

wdt_timestamp_started is not activated

Watch dog timer.

Show Controllers T1 Cas-Data Field Descriptions

Related Commands

You can use the master indexes or search online to find documentation of related commands.

show controllers t1 call-counters
cas-group (controller t1)

show interfaces serial bchannel

To display information about the physical attributes of the ISDN PRI over channelized E1 or channelized T1 B and D  channels, use the show interfaces serial bchannel EXEC command.

show interfaces serial slot/port bchannel channel-number
show interfaces serial number bchannel channel-number

Syntax Description

slot/port

Backplane slot number and port number on the interface. See your hardware installation manual for the specific slot and port numbers.

number

Network processor module (NPM) number, in the range 0 through 2.

channel-number

E1 Channel number in the range 1 to 31 or T1 channel number in the range  1  to  23; 1-24 if using NFAS.

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2 F.

show isdn

To display the information about memory, Layer 2 and Layer 3 timers, and the status of PRI channels, use the show isdn global configuration command.

show isdn {active | history | memory | services | status [dsl | serial number] | timers}

Syntax Description

active

Displays current call information, including called number, the time until the call is disconnected, AOC charging units used during the call, and whether the AOC information is provided during calls or at end of calls.

history

Displays historic and current call information, including the called number, the time until the call is disconnected, AOC charging time units used during the call, and whether the AOC information is provided during calls or at the end of calls.

memory

Displays memory pool statistics. This keyword is for use by technical development staff only.

services

Displays the status of PRI channels.

status [dsl | serial  number]

Displays the status of all ISDN interfaces or, optionally, a specific digital signal link (DSL) or a specific ISDN PRI interface (created and configured as a serial interface). Values of dsl range 0 to  15.

timers

Displays the values of Layer 2 and Layer 3 timers.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Sample Displays

The following is sample output from the show isdn active command:

Router# show isdn active
-------------------------------------------------------------------------------
                              ISDN ACTIVE CALLS
-------------------------------------------------------------------------------
History Table MaxLength = 320 entries
History Retain Timer = 15 Minutes
-------------------------------------------------------------------------------
Call Calling     Called        Duration  Remote   Time until   Recorded Charges
Type Number      Number        Seconds   Name     Disconnect   Units/Currency  
-------------------------------------------------------------------------------
Out             9876543222      Active(10)  idacom              11      u(E)
Out             9876543210      Active(34)  idacom 115          5       u(D)
-------------------------------------------------------------------------------

The following is sample output from the show isdn history command:

rudder# show isdn history
-------------------------------------------------------------------------------
                              ISDN CALL HISTORY
-------------------------------------------------------------------------------
History Table MaxLength = 320 entries
History Retain Timer = 15 Minutes
-------------------------------------------------------------------------------
Call Calling     Called        Duration  Remote   Time until   Recorded Charges
Type Number      Number        Seconds   Name     Disconnect   Units/Currency  
-------------------------------------------------------------------------------
Out             47887654       240       blackcanary             5      u(D)
In    67893                    90        delorean
Out             56745678       Active(90)  blackcanary  240      13     u(D)
-------------------------------------------------------------------------------

Table 55 describes the fields in the show isdn active and show isdn history output displays.


Table 55: Show ISDN Active and Show ISDN History Field Descriptions
Field Description

History Table MaxLength

Maximum number of entries that can be retained in the Call History table.

History Retain Timer

Maximum number of seconds any entry can be retained in Call History table.

Call Type

Type of call: incoming or outgoing.

Calling Number

For incoming calls, the number from which the call was received.

Called Number

For outgoing calls, the number to which the call was placed.

Duration Seconds

Number of seconds the call lasted. Indicates whether the call is still active, and how many seconds it has lasted so far.

Remote Name

Name of the host placing the call or the host called.

Time until Disconnect

Number of seconds before the call is configured to disconnect because of the static idle timer for the map class or the interface.

Recorded Charges Units/Currency

For outgoing calls, number of ISDN AOC charging units used or the currency cost of the call.

The following sample display shows the output of the show isdn service command when PRI is configured 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 

Table 56 describes the fields in the sample output of the show isdn service command.


Table 56: Show ISDN Service Field Descriptions
Field Description

ISDN Se1/0:23

ISDN PRI interface corresponding to serial interface 1/0:23.

Channel (1-31)

Channel range "1-31" is a standard format for both T1 and E1 outputs, but the state value shown identifies whether the channel is used.

Activated dsl 0

The digital signal link (DSL) value is 0.

State (0=Idle 1=Propose 2=Busy 3=Reserved 4=Restart 5=Maint)

Current state of each channel. Channels 24 through 31 are marked as reserved when the output is from  T1.

Channel (1-31) Service (0=Inservice 1=Maint 2=Outofservice)

Service state assigned to each channel. Channel 24 is marked as out of service.1

1If channel 24 (marked as out of service) is configured as the NFAS primary D channel, NFAS will roll over to the backup D  channel if one is configured. If channel 24 is a B channel, it will not accept calls.

The following shows sample output from the show isdn status command for PRI interfaces configured on two different ports of the same controller. This example shows one active call.

Router# show isdn status
rudder#show isdn status
Global ISDN Switchtype = basic-5ess
ISDN BRI0 interface
        dsl 0, interface ISDN Switchtype = basic-5ess
    Layer 1 Status:
        ACTIVE
    Layer 2 Status:
        TEI = 64, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Activated dsl 0 CCBs = 0
ISDN BRI1 interface
        dsl 1, interface ISDN Switchtype = basic-5ess
    Layer 1 Status:
        DEACTIVATED
    Layer 2 Status:
        Layer 2 NOT Activated
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Activated dsl 1 CCBs = 0
ISDN BRI2 interface
        dsl 2, interface ISDN Switchtype = basic-5ess
    Layer 1 Status:
        DEACTIVATED
    Layer 2 Status:
        Layer 2 NOT Activated
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Activated dsl 2 CCBs = 0
ISDN BRI3 interface
        dsl 3, interface ISDN Switchtype = basic-5ess
    Layer 1 Status:
        ACTIVE
    Layer 2 Status:
        TEI = 75, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Activated dsl 3 CCBs = 0
ISDN BRI4 interface
        dsl 4, interface ISDN Switchtype = basic-5ess
    Layer 1 Status:
        DEACTIVATED
    Layer 2 Status:
        Layer 2 NOT Activated
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Activated dsl 4 CCBs = 0
ISDN BRI5 interface
        dsl 5, interface ISDN Switchtype = basic-5ess
    Layer 1 Status:
        DEACTIVATED
    Layer 2 Status:
        Layer 2 NOT Activated
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Activated dsl 5 CCBs = 0
ISDN BRI6 interface
        dsl 6, interface ISDN Switchtype = basic-5ess
    Layer 1 Status:
        DEACTIVATED
    Layer 2 Status:
        Layer 2 NOT Activated
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Activated dsl 6 CCBs = 0
ISDN BRI7 interface
        dsl 7, interface ISDN Switchtype = basic-5ess
    Layer 1 Status:
        DEACTIVATED
    Layer 2 Status:
        Layer 2 NOT Activated
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Activated dsl 7 CCBs = 0
ISDN Serial0:15 interface
        dsl 8, interface ISDN Switchtype = primary-ni
    Layer 1 Status:
        ACTIVE
    Layer 2 Status:
        TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Activated dsl 8 CCBs = 0
    Total Allocated ISDN CCBs = 0

Table 57 describes significant fields in the output of the show isdn status command.

Table 57: Show ISDN Status Field Descriptions
Field Description

ISDN Switchtype = primary-5ess

PRI switch type the router is connected to.

ISDN Serial1/0:23 interface

Serial slot, port, and timeslot numbers that define the PRI interface location.

Layer 1 Status

ACTIVE

Status of ISDN Layer 1.

Layer 2 Status

TEI = 65, State  =  MULTIPLE_FRAME_ESTABLISHED

Status of ISDN Layer 2. Terminal endpoint identifier number and multiframe structure state.

Layer 3 Status:

1 Active Layer 3 Call(s)

Number of active calls.

Activated dsl 1 CCBs =

Number of the Digital Signal Link activated. Number of call control blocks in use.

CCB:callid=8001, callref=0, sapi=0, ces=1, B-chan=23

Call control block information about the active call.

Number of active calls =

Number of active calls.

Number of available B-channels =

Number of B channels that are not being used.

Total Allocated ISDN CCBs =

Number of ISDN call control blocks that are allocated.


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