ISDN-SGR (ISDN-PRI Signaling Group)
Issue 4 May 2002
10-963555-233-123
h. These error codes are used to report certain error messages received by
the ISDN-PRI Signaling Group for one of its associated B-channels. The
aux data field shows for which B-channel (port number) the message was
received.
The error code generated equals 3840+x, where x is a Cause Value
defined by the ISDN PRI Specification. Note that there is no Test to Clear
Value for these error types; selected ISDN cause values are placed in the
log when they are received, but no direct action or alarming is performed
solely in response to receiving them. They provide added data that may
prove useful when tracking down obscure networking and routing
problems. The following table provides more information:
Table 10-349. Descriptions of Error Codes 3842-3942
Error
Code Description Recommendation
3842 A request has been made
to use a transit network or
common carrier that cannot
be accessed.
1. From the circuit pack and port number
(in the Aux Data field), determine the
trunk group against which the error was
reported.
2. Check all routing patterns containing this
trunk group for validity of interexchange
carriers requested (IXC field).
3843 No route to destination.
Request received to route
call through a transit
network that is recognized
but not allowed to carry the
call or not able to serve the
destination.
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