IMG 1010 - H.323 to SS7 Cause Code Mapping
- Kelli Higdon
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The following table shows the mapping of H.225 Release reason to Q.931 Cause Codes in the IMG.
If the cause value received in the H.225.0 message is unknown in ISUP, the unspecified cause value of the class is sent.
H.323 | SS7 |
|---|---|
noBandwidth | 34 – no circuit/channel available |
gatekeeperResources | 47 – Resource unavailable, unspecified |
unreachableDestination | 3 – No route to destination |
destinationRejection | 16 – Normal call clearing |
invalidRevision | 88 – Incompatible destination |
noPermission | 127 – Interworking, unspecified |
unreachableGatekeeper | 38 – Network out of order |
gatewayResources | 42 – Switching equipment congestion |
badFormatAddress | 28 – Invalid number format |
adaptiveBusy | 41 – Temporary failure |
inConf | 17 – User busy |
undefinedReason | 31 – Normal, unspecified |
facilityCallDetection | 16 – Normal call clearing |
securityDenied | 31 – Normal, unspecified |
calledPartyNotRegistered | 20 – Subscriber absent |
callerNotRegistered | 31 – Normal, unspecified |
newConnectionNeeded | 47 – Resource unavailable, unspecified |
nonStandardReason | 127 – Interworking, unspecified |
replaceWithConferenceInvite | 31 – Normal, unspecified |
genericDataReason | 31 – Normal, unspecified |
neededFeatureNotSupported | 31 – Normal, unspecified |
tunnelledSignallingRejected | 127 – Interworking, unspecified |
invalidCID | 3 – No route to destination |
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