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Configuring the Digital Modem Network Module for the Cisco 3640 Router
Configure the ISDN D-Channel Serial Interface for E1 Modules
To configure the ISDN D-channel serial interface for E1 modules, perform the following tasks,
beginning in global configuration mode:
Command
interface Serialslot/port:15
no ip address
encapsulation ppp
isdn incoming-voice modem
dialer rotary-group number
dialer-group number
no fair-queue
no cdp enable
For more information about configuring E1 ISDN D-channel serial interfaces, refer to the "Configure
ISDN PRI" section in the Cisco IOS Release 11.3 Dial Solutions Configuration Guide.
Configure the ISDN D-Channel Serial Interface for T1 Modules
To configure the ISDN D-channel serial interface for T1 modules, perform the following tasks,
beginning in the global configuration mode:
Command
interface Serialslot/port:23
no ip address
encapsulation ppp
isdn incoming-voice modem
dialer rotary-group number
dialer-group number
no fair-queue
no cdp enable
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
3-54
Chapter 3
Configuring with the Command-Line Interface
Description
Specify the D-channel of the first PRI line and
switch to the interface configuration mode.
Disable IP processing on this interface.
Set the Point-to-Point Protocol (PPP) as the
encapsulation method used by this interface.
Configure all incoming voice calls to go to the
modems.
Create a rotary dialer group.
Assign the D-channel interface(s) to the defined
rotary dialer group.
Disable fair weighted queuing for this interface.
Disable Cisco Discovery Protocol (CDP) on this
interface.
Description
Specify the D-channel of the first PRI line and
switch to the interface configuration mode.
Disable IP processing on this interface.
Set the Point-to-Point Protocol (PPP) as the
encapsulation method used by this interface.
Configure all incoming voice calls to go to the
modems.
Create a rotary dialer group.
Assign the D-channel interface(s) to the defined
rotary dialer group.
Disable fair weighted queuing for this interface.
Disable CDP on this interface.
OL-1957-03
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