Prestige 100 and 100IH ISDN Router and Router/Hub
11.2 Problems With the ISDN Line
Table 11-2 Troubleshooting the ISDN Line
Problem | Corrective Action | |
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| |
The ISDN initialization failed. | Check the error log (in menu 24.3.1), you should see a log entry for | |
This problem occurs when you | the ISDN initialization failure in the format, ‘ISDN init failed. | |
attempt to save the parameters | code<n>...’. Note the code number, n. | |
entered in menu 2, but receive |
| |
If the code is 1, the ISDN link is not up. This problem could be either | ||
the message, ‘Save successful, | ||
the ISDN line is not properly connected to the Prestige or the ISDN | ||
but Failed to initialize ISDN; | ||
line is not activated. Verify that the ISDN line is connected to the | ||
Press ESC to exit’. | ||
Prestige and to the wall telephone jack. | ||
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| If the code is 2, there is a SPID error (North America only). Check the | |
| SPID numbers again in menu 2, and if they are correct, initialize them | |
| again from menu 24.4.3. | |
|
| |
| If the code is 3, this indicates a general failure. Verify the provisioning | |
| information for your switch by contacting your telephone company. | |
|
| |
The ISDN loopback test failed. | If the ISDN initialization is successful, then the loopback test should | |
| also work. Verify the telephone numbers that have been entered in | |
| menu 2. The loopback test dials the number entered in the 2nd | |
| Phone # field (except for switch types with only one phone number). If | |
| you need to dial a prefix (e.g., ‘9’) to get an outside line, then you | |
| have to enter the telephone number as ‘95551212’ or | |
| ‘914085551212’. If it is an internal line, you may only need to enter the | |
| last four or five digits (according to your internal dialing plan), e.g., | |
| 51212. | |
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Troubleshooting |
