ISDN Router Manual V.1.1
86
APPENDIX 2 Disconnect Cause Indication
Class No.
Description
001
Unassigned (unallocated) number
002
No route to specified transit network
003
No route to destination
006
Channel unacceptable
007
Call awarded and being delivered in an established channel
016
Normal call clearing
017
User busy
018
No user responding
019
User alerting no answer
021
Call rejected
026
Non-selected user clearing
027
Destination out of order
028
incomplete number
029
Facility rejected
030
Response to STATUS ENQUIRY
Normal
Event
031
Normal, unspecified
034
No circuit/channel available
038
Network out of order
041
Temporary failure
042
Switching equipment congestion
043
Access information discarded
044
Requested circuit/channel not available
Resource
Unavailable
047
Resource unavailable, unspecified
049
Unable to use QOS
050
057
Bearer capability no authorized
058
Bearer capability not presently available
Service
or
option
not
available
063
Service or option not available
065
Bearer capability not implemented
066
Channel type not implemented
069
Requested facility not implemented
070
Only restricted digital information bearer capability is available
Service
or
option
not
implemented
079
Service or option not implemented, unspecified
081
Invalid call reference value
082
Identified channel does not exist
083
A suspended call exists, but this call identity does not
Exist
085
No call suspended
086
Call having the requested call identity has been cleared
088
Incompatible destination
091
Invalid transit network selection
Invalid
message
095
Invalid message, unspecified
096
Mandatory information element is missing
097
Message type non-existent or not implemented
098
Message not compatible with call state or message type non-existent
or not implemented
099
Information element non-existent or not implemented
100
Invalid information element contents
101
Message not compatible with call state
102
Recovery on time expiry
Protocol error
111
Protocol error, unspecified
Inter-working
127
Inter-working, unspecified