VoiceFinder AP2120 VoIP Gateway User’s Guide Version 1.00
AddPac Technology Co., Ltd. -
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For your reference, the following table shows recommendation of ITU-T for H.225 cause and
Q.931 cause mapping for H.323.
H225 Cause Q931 Cause
noBandwidth NoCircuitChannelAvailable (34)
gatekeeperResources ResourceUnavailable (47)
unreachableDestination NoRouteToDestination (3)
destinationRejection NormalCallClearing (16)
invalidRevision IncompatibleDestination (88)
noPermission InterworkingUnspecified (127)
unreachableGatekeeper NetworkOutOfOrder (38)
gatewayResources SwitchingEquipmentCongestion (42)
badFormatAddress InvalidNumberFormat (28)
adaptiveBusy TemporaryFailure (41)
inConf UserBusy (17)
undefinedReason NormalUnspecified (31)
facilityCallDeflection NormalCallClearing (16)
securityDenied NormalUnspecified (31)
calledPartyNotRegistered SubscriberAbsent (20)
callerNotRegistered NormalUnspecified (31)
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