ISDN-TRK (DS1 ISDN Trunk)
Issue 1 May 2002
8-997555-233-143
l. An ISDN trunk selected by the near end has been rejected 10 times by the
far end without a successful call. This may indicate a service-state
mismatch between the near and far ends for this trunk that is affecting the
end user (that is, customer receives unexpected intercept tones when
accessing ISDN trunks). This may indicate that the ISDN trunk is not
administered at the far end.
The Aux field contains the physical name of the ISDN trunk in decimal.
Then, verify that the far end has this trunk administered.
The Warning alarm will be retired automatically whenever an outgoing or
incoming call that uses this trunk is answered by the called endpoint. If
problems persist, then busyout the ISDN trunk to take it out of the hunt
group.
System Technician-Demanded Tests:
Descriptions and Error Codes
Always investigate tests in the order presented in the table below when inspecting
errors in the system. For example, by clearing error codes associated with the
NPE Crosstalk test (#6), you may also clear errors generated from other tests in
the testing sequence.
Table 8-393. System Technician-Demanded Tests: DS1-BD
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
1. D = Destructive, ND = nondestructive
NPE Crosstalk test (#6) X ND
Conference Circuit test (#7) X ND
Audit and Update test (#36) X X ND
Signaling Link State Check test (#255) X X ND
Service State Audit test (#256) X X ND
Call State Audit test (#257) X X ND
ISDN Test Call test (#258) X ND
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