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8.3 Viewing ISDN Logs
To capture messages exchanged on the ISDN interface, use the "log
-i" command to dump all exchanged messages on the ISDN interface.
The steps are:
1. Login to the Telnet terminal.
2. Type "log -F w" to clear all ISDN logs.
3. Ping to any outside host to trigger the router to dial from your
PC.
4. Type "log -i" to display the latest ISDN log. To display all
ISDN logs saved in the log buffer, type "log -i -t".
Detailed ISDN log example:
The above example shows detailed D-channel SETUP messages only.
Note that all ISDN D-channel messages will be displayed when you
Troubleshooting & FAQ
8-5
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