Appendix O Cause Code
N-1
Appendix O Cause Code
Cause code indicates cause of disconnection of the communication.
O.1 Cause Code for CS communication (TEL, FAX)
--These Cause codes are quoted from 3GPP TS24.008 Annex H and Annex G
Normal class
Resource unavailable class
0022 No circuit/channel available 002B Access information discarded
0026 Network out of order 002C Requested circuit/channel not available
0029 Temporary failure 002F Resource unavailable, unspecified
002A Switching equipment congestion
Service or option not implemented class
0031 Quality of service unavailable 0041
ACM (Accumulated Call Meter) equal to or
greater than ACMmax
0032 Requested facility not subscribed 0044 Bearer service not implemented
0037
Incoming calls barred within the CUG
(Closed User Group)
0045 Request facility not implemented
0039 Bearer capability not authorized 0046
Only restricted digital information bearer
capability is available
003A Bearer capability not presently available 004F Service or option not implemented, unspecified
003F
Service or option not available,
unspecified
Invalid message (e.g., parameter out of range) class
0051 Invalid transaction identifier value 005B Invalid transit network selection
0057
User not member of CUG(Closed User
Group)
005F Semantically incorrect message
0058 Incompatible destination
No. (HEX) Reason No. (HEX) Reason
0001 Unassigned (unallocated) number 0016 Number changed
0003 No route to destination 0019 Pre-emption
0006 Channel unacceptable 001A Non-selected user clearing
0008 Operator determined barring 001B Destination out of order
0010 Normal call clearing 001C Invalid number format (incomplete number)
0011 User busy 001D Facility rejected
0012 No user responding 001E Response to STATUS ENQUIRY
0013 User alerting, no answer 001F Normal, unspecified
0015 Call rejected
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