ISDN connectivity is supported on the J-series Services Routers as a backup for a primary Internet connection. The J-series Services Routers can be configured to “fail over” to an ISDN interface when the primary connection experiences interruptions in Internet connectivity.
Use ISDN also at the central office to terminate calls that originate at branch office routers and for central office callback for security, accounting, or cost savings at the branch office.
You can use either J-Web Quick Configuration or a configuration editor to configure ISDN BRI interfaces. To configure ISDN PRI, you use either the J-Web configuration editor or CLI configuration editor.
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Note: This chapter provides instructions for configuring basic ISDN BRI service and features such as dial backup, dial-in, or callback for both ISDN BRI and ISDN PRI. To configure basic ISDN PRI service, see Configuring Channelized T1/E1/ISDN PRI Interfaces. |
This chapter contains the following topics: