Isdn Enhancements - Avaya 1000 Series Configuration Manual

ISDN enhancements

The Secure Router 1001 provides support for multiple ISDN enhancements.
Unnumbered IP over ISDN interfaces will now be supported, as well as the ability to modify
the ISDN parameters SWITCH TYPE, TEI TYPE, and TEI without having to reboot the router.
The purpose of unnumbered IP over ISDN is to conserve IP addresses by borrowing an IP
address from another configured interface. The unnumbered interface is the interface that
borrows, and it should do so from an interface that is physically up and running. In the event
the unnumbered interface attempts to borrow from an non-functioning interface, the
unnumbered interface will not function.
The activate command is used to activate and change ISDN configurations. ISDN
configurations not affected by this command are callingnum, callednum,, idle-timeout, and
connect-delay.
Finally, the Secure Router 1001 provides support for configuration of the calling party number
and various ISDN timers. In prior releases, the calling party number was provided
automatically. This is now user configurable. Similarly, ISDN layer 2 and 3 timers were not
configurable. This has changed, allowing the user to maximize performance of the ISDN
network.
Three items users should note prior to implementation are:
• When configuring unnumbered IP over ISDN, the loopback interface cannot be used as
the source.
• When users upgrade from pre-Release 9.3 they will need to reconfigure any existing ISDN
parameters. This is a result of changes in the way ISDN is configured.
• Only static routing is supported on ISDN interface.
Configuring Unnumbered IP over ISDN BRI
Use the following procedure to configure unnumbered IP over ISDN BRI.
Avaya Secure Router 1000 Series Configuration Guide
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call not yet established D channel statistics
--------------------
Bytes Rx: 3062
Frames Rx: 509
Error Frames Rx: 0 Bytes Tx: 2050
Frames Tx: 510
Fail Tx: 0
Note:
The ISDN call will get disconnected if there is no traffic passing through the ISDN
interface for idle timeout period.
ISDN enhancements
December 2010 279