To configure ISDN interfaces on a J-series Services Router, you first configure the basic ISDN interface—either Adding an ISDN BRI Interface (Required) or Configuring a Channelized T1/E1/ISDN PRI Interface for ISDN PRI Operation. Second, configure the dialer interface by performing Configuring a Dialer Interface (Required).
To configure ISDN interfaces to back up primary Services Router interfaces, you then configure a backup method—either Configuring Dial Backup, Configuring a Dialer Filter for Dial-on-Demand Routing Backup, or Configuring Dialer Watch.
To configure ISDN interfaces for dial-in or callback, configure the basic ISDN BRI or PRI interface and then perform Configuring Dial-In and Callback (Optional).
Perform other tasks as needed on your network.
This section contains the following topics: