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Cisco IOS Release 12.0 Dial Solutions Command Reference
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About This Manual
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Using Cisco IOS Software
- Part 1: Dial-In Port Setup
- Part 2: Dial-In Terminal Service & Remote Node Config
- Part 3: Dial-on-Demand Routing
- Part 4: Dial Backup
- Part 5: NASI Client Commands
- Part 6: Large-Scale Dial Solutions
- Part 7: Cost-Control Solutions
- Part 8: Virtual Private Dialup Networks
- Part 9: Other Network Traffic on ISDN Channels
- Part 10: Dial-Related Addressing Services
- Part 11: Appendixes
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Index
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Table Of Contents
Channelized E1 and Channelized T1 Setup Commands
show controllers e1 call-counters
show controllers t1 call-counters
show interfaces serial bchannel
Channelized E1 and Channelized T1 Setup Commands
This chapter describes commands needed to configure channelized E1 and channelized T1 for the following:
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ISDN PRI on any platform that supports Primary Rate Interface
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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 encapsulationSyntax Description
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 channelSyntax 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 , 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 . 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 : 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
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.
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 terminalEnter configuration commands, one per line. End with CNTL/Zrouter(config)# controller e1 1router(config-controller) cas-group 1 timeslots 1-31 type r2-digital r2-compelledrouter(config-controller) cas-custom 1router(config-ctrl-cas)# ?CAS custom commands:ani-digits Expected number of ANI digitsanswer-signal Answer signal to be usedcaller-digits Digits to be collected before requesting CallerIDcategory Category signalcountry Country Namedefault Set a command to its defaultsdnis-digits Expected number of DNIS digitsexit Exit from cas custom modeinvert-abcd invert the ABCD bits before tx and after rxka KA Signalkd KD Signalmetering R2 network is sending metering signalnc-congestion Non Compelled Congestion signalno Negate a command or set its defaultsrequest-category DNIS digits to be collected before requesting categoryunused-abcd Unused ABCD bit valuesExample 2
You can localize your R2 configuration for a specific country. Don't forget to include the use-defaults option as described in . For example, use the country argentina use-defaults command for a R2 scenario in Argentina.
router(config-ctrl-cas)# country ?argentina Argentinaaustralia Australiabrazil Brazilchina Chinacolumbia Columbiacostarica Costa Ricaeasteurope East Europeecuador-itu Ecuador ITUecuador-lme Ecuador LMEgreece Greeceguatemala Guatemalahongkong-china Hong Kong (China variant)indonesia Indonesiaisrael Israelitu ITUkorea Koreamalaysia Malaysianewzealand New Zealandparaguay Paraguayperu Peruphilippines Philippinessaudiarabia Saudi Arabiasingapore Singaporesouthafrica-panaftel South Africa Panafteltelmex Telmextelnor Telnorthailand Thailanduruguay Uruguayvenezuela Venezuelavietnam Vietnamrouter(config-ctrl-cas)# country argentina ?use-defaults Use Country defaults<cr>router(config-ctrl-cas)# country argentina use-defaultsExample 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 1router(config-ctrl-cas)# country argentina use-defaultsrouter(config-ctrl-cas)# caller-digits 3router(config-controller)# ^zrouter(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-defaultsrouter(config-ctrl-cas)# caller-digits 3router(config-ctrl-cas)# unused-abcd 1router(config-ctrl-cas)# meteringrouter(config-ctrl-cas)# country argentina use-defaultsRelated 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 signalSyntax Description
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
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 terminalEnter configuration commands, one per line. End with CNTL/Z.router(config)# controller e1 2router(config-controller)# cas-group 1 timeslots 1-31 type r2-digital r2-compelled anirouter(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 upThe 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 FGBe&m-fgd E & M Type II FGDe&m-immediate-start E & M Immediate Startfxs-ground-start FXS Ground Startfxs-loop-start FXS Loop Startp7 P7 Switchr2-analog R2 ITU Q411r2-digital R2 ITU Q421r2-pulse R2 ITU Supplement 7sas-ground-start SAS Ground Startsas-loop-start SAS Loop Startrouter(config-controller)# cas-group 1 timeslots 1-31 type r2-analog ?dtmf DTMF tone signallingr2-compelled R2 Compelled Register Signallingr2-non-compelled R2 Non Compelled Register Signallingr2-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 1router(config-ctrl-cas)# ?CAS custom commands:caller-digits Digits to be collected before requesting CallerIDcategory Category signalcountry Country Namedefault Set a command to its defaultsexit Exit from cas custom modeinvert-abcd invert the ABCD bits before tx and after rxmetering R2 network is sending metering signalnc-congestion Non Compelled Congestion signalno Negate a command or set its defaultsThe 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-dniscas-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 signalSyntax Description
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 0router(config-controller)# cas-group 1 timeslots 1-24 type e&m-fgbrouter(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 upThe 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
router# configure terminalEnter configuration commands, one per line. End with CNTL/Z.router(config)# controller t1 0router(config-controller)# cas-group 0 timeslots 1-24 type e&m-fgb dtmf dnisrouter(config-controller)# exitrouter(config)#router(config)# modem-pool accounts1router(config-modem-pool)# pool-range 30-50router(config-modem-pool)# called-number 2000 max-conn 21router(config-modem-pool)# exitrouter(config)#The next example configures a Cisco AS5200 to accept switched 56K digital calls on both of its T1 controllers:
router(config)# controller T1 0router(config-controller)# cas-group 1 timeslots 1-24 type e&m-fgb service datarouter(config-controller)# framing esfrouter(config-controller)# clock source line secondaryrouter(config-controller)# linecode b8zsrouter(config-controller)# exitrouter(config)# controller T1 1router(config-controller)# cas-group 1 timeslots 1-24 type e&m-fgb service datarouter(config-controller)# framing esfrouter(config-controller)# clock source line primaryrouter(config-controller)# linecode b8zsrouter(config-controller)# exitrouter(config)# copy running-config startup-configThe 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 0router(config-controller)# cas-group 0 timeslots 1-15 type e&m-fgb service datarouter(config-controller)# cas-group 1 timeslots 16-24 type e&m-fgb service voicerouter(config-controller)# framing esfrouter(config-controller)# clock source line secondaryrouter(config-controller)# linecode b8zsrouter(config-controller)# exitThe 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
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
This command first appeared in Release 11.3MA.
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.
On the Cisco MC3810 access concentrator, only one channel group can be configured on a controller.
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 1channel-group 8 timeslots 5,7,12-15,20 speed 64channel-group 12 timeslots 2Related Commands
You can use the master indexes or search online to find documentation of related commands.
framing
linecodeclear 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 (on the Cisco AS5200 and Cisco AS5300 series)Syntax Description
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 4/0The following example resets the E1 controller at NIM 0:
clear controller e1 0Related Commands
You can use the master indexes or search online to find documentation of related commands.
controller e1
controller t1clock 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 0framing esflinecode hdb3pri-group timeslots 1-23clock source line primary!controller e1 1framing esflinecode hdb3pri-group timeslots 1-23clock source line secondaryRelated Commands
You can use the master indexes or search online to find documentation of related commands.
framing
linecodeclock 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
