目錄
G.1Causes related to MS identification3
G.2Cause related to subscription options3
G.3Causes related to PLMN specific network failures and congestion4
G.4Causes related to nature of request4
G.5Causes related to invalid messages4
G.6Additional cause codes for GMM5
H.1Normal class7
H.1.1Cause No. 1 "unassigned (unallocated) number"7
H.1.2Cause No. 3 "no route to destination"7
H.1.3Cause No. 6 "channel unacceptable"7
H.1.4Cause No. 8 "operator determined barring"7
H.1.5Cause No.16 "normal call clearing"7
H.1.6Cause No.17 "user busy"7
H.1.7Cause No. 18 "no user responding"8
H.1.8Cause No. 19 "user alerting, no answer"8
H.1.9Cause No. 21 "call rejected"8
H.1.10Cause No. 22 "number changed"8
H.1.11Cause No. 26 "non-selected user clearing"8
H.1.12Cause No. 27 "destination out of order"8
H.1.13Cause No. 28 "invalid number format (incomplete number)"8
H.1.14Cause No. 29 "facility rejected"9
H.1.15Cause No. 30 "response to STATUS ENQUIRY"9
H.1.16Cause No. 31 "normal, unspecified"9
H.2Resource unavailable class9
H.2.1Cause No. 34 "no circuit/channel available"9
H.2.2Cause No. 38 "network out of order"9
H.2.3Cause No. 41 "temporary failure"9
H.2.4Cause No. 42 "switching equipment congestion"9
H.2.5Cause No. 43 "access information discarded"9
H.2.6Cause No. 44 "requested circuit/channel not available"10
H.2.7Cause No. 47 "resource unavailable, unspecified"10
H.3Service or option not available class10
H.3.1Cause No. 49 "quality of service unavailable"10
H.3.2Cause No. 50 "Requested facility not subscribed"10
H.3.3Cause No. 55 "Incoming calls barred within the CUG"10
H.3.4Cause No. 57 "bearer capability not authorized"10
H.3.5Cause No. 58 "bearer capability not presently available"11
H.3.6Cause No. 63 "service or option not available, unspecified"11
H.3.7Cause No. 68 "ACM equal to or greater than ACMmax"11
H.4Service or option not implemented class11
H.5Invalid message (e.g., parameter out of range) class12
H.6Protocol error (e.g., unknown message) class12
H.7Interworking class13
I.1Causes related to nature of request14
I.2Causes related to invalid messages15