Problems With The Isdn Line; Problems With Remote User Dial-In; Table 111 Troubleshooting The Isdn Line; Table 112 Troubleshooting Remote User Dial-In - ZyXEL Communications P-202H V2 User Manual

P-202H Plus v2 User's Guide

36.3 Problems with the ISDN Line

Table 111 Troubleshooting the ISDN Line

PROBLEM
The ISDN initialization failed. This
problem occurs when you attempt
to save the parameters entered in
the Wizard Setup or WAN screen
or SMT Menu 2, but receive the
message, 'Save successful, but
Failed to initialize ISDN; Press
[Esc] to exit'.
The ISDN loopback test failed.

36.4 Problems with Remote User Dial-in

Table 112 Troubleshooting Remote User Dial-in

PROBLEM
A remote user cannot dial-in.
319
CORRECTIVE ACTION
Check the error log (in Menu 24.3.1), you should see a log entry for
the ISDN initialization failure in the format, 'ISDN init failed.
code<n> . . .'. Note the code number, n.
If the code is 1, the ISDN link is not up. This problem could be
either the ISDN line is not properly connected to the ZyXEL Device
or the ISDN line is not activated. Verify that the ISDN line is
connected to the ZyXEL Device and to the wall telephone jack.
If the code is 3, this indicates a general failure. Verify the
provisioning information for your switch by contacting your
telephone company.
Check your SPID numbers if the ISDN LED is blinking slowly as this
indicates that SPID negotiation has failed (North America only).
If the ISDN initialization is successful, then the loopback test should
also work. Verify the telephone numbers that have been entered in
the Wizard Setup or WAN screen or SMT Menu 2. The loopback
test dials the number entered in the second 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.
CORRECTIVE ACTION
First verify that you have configured the authentication parameters
in Menu 13. These would be CLID Authen and Recv Authen.
In Menu 14.1, verify the user name and password for the remote
dial-in user.
If the remote dial-in user is negotiating IP, verify that the IP address
is supplied correctly in Menu 13. Check that either the remote dial-
in user is supplying a valid IP address, or that the ZyXEL Device is
assigning a valid address from the IP pool.
If the remote dial-in user is negotiating IPX, verify that the IPX
network number is valid from the IPX pool (if it is being used).
Chapter 36 Troubleshooting