Isdn Initialization Or Reset; Isdn Loopback Test - NETGEAR RT338 Reference Manual

ISDN Initialization or Reset

During the power-on initialization, during manual ISDN reset through the diagnostic menu, or
when attempting to save the parameters entered in internal Manager Menu 2, you might receive
this message from the Manager interface:
Failed to initialize ISDN
If this message is displayed, check the error log in Menu 24.3.1. There is a log entry for the ISDN
initialization failure in the message:
ISDN init failed. code<n>....
The code number n is 1, 2, or 3. Refer to the corresponding instructions in
Table 12-1. Code Numbers for Failed ISDN Initialization
Code
Number Description
1 The ISDN link is not up.
2 There is an SPID error
(North America only).
3 There is a general failure.

ISDN Loopback Test

If the ISDN initialization has passed, the loopback test should also pass. This test may be executed
from Menu 24.4, where it is shown as test 4, ISDN Connection Test. If the loopback test fails,
verify the phone numbers that you entered in Menu 2. The loopback test dials the number entered
in the second phone # field (except for switch types with only one phone number). Check whether
you need to dial 1 or 1+area code. If you are required to dial a prefix (for example, 9) to get an
outside line, you must enter the prefix with the phone number (for example, 95551212 or
914085551212). If it is an internal line, you might need to enter only the last four or five digits,
depending on your internal dialing plan (for example, 51212).
Troubleshooting
Reference Guide for the Model RT338 ISDN Router
Malfunction and Troubleshooting Instructions
Either the ISDN line is not properly connected to the router or the
ISDN line is not activated. Verify that the ISDN cable is connected
to the router and also to the wall outlet (to the telephone
company). Confirm that the ISDN line has been activated by
the telephone company.
The SPIDs that you entered in menu 2 might not be correct.
If these are correct, initialize again from menu 24.4.3.
The provisioning information for your switch might not be correct.
Contact your telephone company to verify the provisioning
information for your switch and verify the SPIDs in Menu 2
(applies to North America only).
Table 12-1.
12-3