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Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-04
Chapter3 Configuring with the Command-Line Interface
Configuring the Digital Modem Network Module for the Cisco 3640 Router
Note • The PRI module must be hardware revision -03; earlier revisions are incompatible with digital
modem modules. For more information, refer to the “Software and Hardware Requirements” section
in the Digital Modem Network Module Configuration Notes.
• Install the Digital Modem Network Module in a chassis slot. For information on how to correctly
install this network module, refer to the “Installing a Digital Modem Network Module in a Chassis
Slot” section in the Digital Modem Network Module Configuration Note.
• Complete basic device configuration, including host name, username, protocol, and security
configuration.
• Make sure that you have the following information:
–
ISDN PRI Switch type
–
T1 (or E1) information, such as line code and framing type
–
Channel-group information and time-slot mapping
Configuration Tasks
Complete the following tasks to configure the digital modem module interfaces:
• Configure the E1/T1 Network Module for ISDN PRI, page 3-51
• Configure the ISDN D-Channel Serial Interfaces, page 3-53
• Configure the Loopback Interface, page 3-54
• Configure the LAN Interface, page 3-55
• Create the Group Asynchronous Interface, page 3-55
• Configure the ISDN Dialer Interface, page 3-56
• Configure the Default IP Pool Information, page 3-57
• Configure Modem Lines for Dial-In and Dial-Out, page 3-57
These tasks are described in the following sections.
Configure the E1/T1 Network Module for ISDN PRI
The first step in configuring a digital modem interface is to configure ISDN PRI on either a channelized
T1 or E1 controller, depending on the ISDN service in your area. The ISDN PRI network modules can
have either one or two ports; if the ISDN PRI module installed in your device has two ports, you need
to apply the following procedure to both ports.
Configure Channelized E1 ISDN PRI
To configure ISDN PRI on a channelized E1 controller, perform the following tasks, beginning in global
configuration mode:
Command Description
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