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Appendix A-Disconnection Causes
A-12
29 Facility Rejected User requested supplementary service which
cannot be provided by the network.
30 Response to
STATUS
ENQUIRY
A STATUS message has been received in
response to a prior STATUS ENQUIRY.
31 Normal,
Unspecified
A normal, unspecified disconnection has
occurred.
34 No Circuit/
Channel
Available
No B-Channels are available for the call.
38 Network Out-of-
Order
Network is out-of-order because due to a major
malfunction.
39 Permanent
Frame Mode
Connection Out-
of-Service
A permanent frame mode connection is out-of-
service. This cause is part of a STATUS
message.
40 Permanent
Frame Mode
Connection
Operational
A permanent frame mode connection is
operational. This cause is part of a STATUS
message.
41 Temporary
Failure
Minor network malfunction. Initiate call again.
42 Switching
Equipment
Congestion
High traffic has congested the switching
equipment. Cause 43 is included.
43 Access
Information
Discarded
Access Information elements exceed maximum
length and have been discarded. Included with
Cause 42.
44 Requested
Circuit/Channel
not Available
The requested circuit or channel is not
available. Alternative circuits or channels are
not acceptable.
Table A-2 ISDN Disconnection Causes (Continued)
Disconnection Cause
Number Summary Description