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Appendix
Appendix - 15
127 Interworking,
unspecified
An event occurred within a network that does not
provide causes for the action that it takes. The
precise problem is unknown.
145 ISDN layer 1 and/or
2 link not
established
User needs to check cabling, ISDN adapter status
and network connections.
146 ISDN layer 3
connection to the
ISDN
switch/network
inactive
There is either a switch protocol error, or (in the
United States or Canada) a SPID assignment
problem.
255 ISDN command
processing error
The ISDN signaling code has encountered an
error processing an ISDN action. ISDN adapter
busy-wait and retry.
Code Cause Definition