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When you have finished configuring the ISDN interface, you can use the list
command to display your configuration.
Configuring the ISDN Interface
T1/J1 PRI Interface
Specify the following T1/J1 parameters:
1. For the T1/J1 PRI interface, line build out specifies the attenuation of the signal
transmitted by the router’s T1 port. Specify the lbo (line build out) based on the
information provided by the service provider.
a= -00.0 dB
b= -07.5 dB
c= -15.0 dB
d= -22.5 dB
For example:
set int lbo a
2. Specify the code, either B8ZS or AMI. B8ZS is default. The service provider
provides this information.
For example:
set int code AMI
3. Specify ZBTSI- Zero Byte Time Slot Inversion, either ENABLED or DISABLED.
The default is DISABLED. The service provider provides this information.
For example:
set int ZBTSI enabled
4. Specify the esf-data-link. Select one of the following based on the service
subscription:
ANSI-T1.403 ANSI-IDLE AT&T-IDLE
Default is ANSI-T1.403
For example:
set int esf-data-link ansi-idle
E1 PRI Interface
For the E1 PRI interface, specify the following parameters:
1. Specify the code, either HDB3 or AMI. HDB3 is default. The service provider
provides this information.
For example:
set int code HDB3
2. Specify the crc4, either ENABLED or DISABLED. Default is ENABLED. The
service provider provides this information.
For example:
set int crc4 enabled
Adding Dial Circuits
Dial circuits are mapped to ISDN interfaces. You can map multiple dial circuits to
one ISDN interface.
Using ISDN
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MRS V3.2 Software User’s Guide