8. IP-Specific Event Cause Codes

The event cause codes described in this chapter are defined in the gcip_defs.h header file. When a GCEV_DISCONNECTED event is received, use the gc_ResultInfo( ) function to retrieve the reason or cause of that event. Table 48 lists the supported IP-specific event cause codes and provides a description of each code.

When using gc_DropCall( ) with H.323, only event cause codes prefixed by IPEC_H2250 or IPEC_Q931 should be specified in the cause parameter.

When using gc_DropCall( ) with SIP, the following behavior is defined:

• If the application wants to reject a call during call establishment, the relevant cause value for the gc_DropCall( ) function can be either one of the generic Global Call cause values for dropping a call (see the gc_DropCall( ) function description in the Global Call API Library Reference), or one of the cause values prefixed by IPEC_SIP in Table 48.
• If the application wants to drop a call that is already connected (simply hanging up normally) the same rules as described in the first bullet apply, but the cause is not relevant in the BYE message.

Table 48. IP-Specific Event Cause Codes 

Event Cause Code	Description
IPEC_H2250ReasonAdaptiveBusy	H2250 Reason.
IPEC_H2250ReasonBadFormatAddress	H2250 Reason.
IPEC_H2250ReasonCalledPartyNotRegistered	H2250 Reason.
IPEC_H2250ReasonCallerNotRegistered	H2250 Reason.
IPEC_H2250ReasonDestinationRejection	H2250 Reason.
IPEC_H2250ReasonFacilityCallDeflection	H2250 Reason.
IPEC_H2250ReasonGatekeeperResource	H2250 Reason.
IPEC_H2250ReasonGatewayResource	H2250 Reason.
IPEC_H2250ReasonInConf	H2250 Reason.
IPEC_H2250ReasonInvalidRevision	H2250 Reason.
IPEC_H2250ReasonNoBandwidth	H2250 Reason.
IPEC_H2250ReasonNoPermission	H2250 Reason.
IPEC_H2250ReasonSecurityDenied	H2250 Reason.
IPEC_H2250ReasonUndefinedReason	H2250 Reason.
IPEC_H2250ReasonUnreachableDestination	H2250 Reason.
IPEC_H2250ReasonUnreachableGatekeeper	H2250 Reason.
IPEC_Q931Cause01UnassignedNumber	Q.931 cause 01.
IPEC_Q931Cause02NoRouteToSpecifiedTransitNetwork	Q.931 cause 02.
IPEC_Q931Cause03NoRouteToDestination	Q.931 cause 03.
IPEC_Q931Cause06ChannelUnacceptable	Q.931 cause 06.
IPEC_Q931Cause07CallAwardedAndBeingDeliveredInAnEstablishedChannel	Q.931 cause 07.
IPEC_Q931Cause16NormalCallClearing	Q.931 cause 16.
IPEC_Q931Cause17UserBusy	Q.931 cause 17.
IPEC_Q931Cause18NoUserResponding	Q.931 cause 18.
IPEC_Q931Cause19UserAlertingNoAnswer	Q.931 cause 19.
IPEC_Q931Cause21CallRejected	Q.931 cause 21.
IPEC_Q931Cause22NumberChanged	Q.931 cause 22.
IPEC_Q931Cause26NonSelectUserClearing	Q.931 cause 26.
IPEC_Q931Cause27DestinationOutOfOrder	Q.931 cause 27.
IPEC_Q931Cause28InvalidNumberFormatIncompleteNumber	Q.931 cause 28.
IPEC_Q931Cause29FacilityRejected	Q.931 cause 29.
IPEC_Q931Cause30ResponseToSTATUSENQUIRY	Q.931 cause 30.
IPEC_Q931Cause31NormalUnspecified	Q.931 cause 31.
IPEC_Q931Cause34NoCircuitChannelAvailable	Q.931 cause 34.
IPEC_Q931Cause38NetworkOutOfOrder	Q.931 cause 38.
IPEC_Q931Cause41TemporaryFailure	Q.931 cause 41.
IPEC_Q931Cause42SwitchingEquipmentCongestion	Q.931 cause 42.
IPEC_Q931Cause43AccessInformationDiscarded	Q.931 cause 43.
IPEC_Q931Cause44RequestedCircuitChannelNotAvailable	Q.931 cause 44.
IPEC_Q931Cause47ResourceUnavailableUnspecified	Q.931 cause 47.
IPEC_Q931Cause57BearerCapabilityNotAuthorized	Q.931 cause 57.
IPEC_Q931Cause58BearerCapabilityNotPresentlyAvailable	Q.931 cause 58.
IPEC_Q931Cause63ServiceOrOptionNotAvailableUnspecified	Q.931 cause 63.
IPEC_Q931Cause65BearCapabilityNotImplemented	Q.931 cause 65.
IPEC_Q931Cause66ChannelTypeNotImplemented	Q.931 cause 66.
IPEC_Q931Cause69RequestedFacilityNotImplemented	Q.931 cause 69.
IPEC_Q931Cause70OnlyRestrictedDigitalInformationBearerCapabilityIsAvailable	Q.931 cause 70.
IPEC_Q931Cause79ServiceOrOptionNotImplementedUnspecified	Q.931 cause 79.
IPEC_Q931Cause81InvalidCallReferenceValue	Q.931 cause 81.
IPEC_Q931Cause82IdentifiedChannelDoesNotExist	Q.931 cause 82.
IPEC_Q931Cause83AsuspendedCallExistsButThisCallIdentityDoesNot	Q.931 cause 83.
IPEC_Q931Cause84CallIdentityInUse	Q.931 cause 84.
IPEC_Q931Cause85NoCallSuspended	Q.931 cause 85.
IPEC_Q931Cause86CallHavingTheRequestedCallIdentityHasBeenCleared	Q.931 cause 86.
IPEC_Q931Cause88IncompatibleDestination	Q.931 cause 88.
IPEC_Q931Cause91InvalidTransitNetworkSelection	Q.931 cause 91.
IPEC_Q931Cause95InvalidMessageUnspecified	Q.931 cause 95.
IPEC_Q931Cause96MandatoryInformationElementMissing	Q.931 cause 96.
IPEC_Q931Cause97MessageTypeNonExistentOrNotImplemented	Q.931 cause 97.
IPEC_Q931Cause100InvalidInformationElementContents	Q.931 cause 100.
IPEC_Q931Cause101MessageNotCompatibleWithCallState	Q.931 cause 101.
IPEC_Q931Cause102RecoveryOnTimeExpiry	Q.931 cause 102.
IPEC_Q931Cause111ProtocolErrorUnspecified	Q.931 cause 111.
IPEC_Q931Cause127InterworkingUnspecified	Q.931 cause 127.
IPEC_RASReasonResourceUnavailable	RAS failure reason
IPEC_RASReasonInsufficientResources	RAS failure reason
IPEC_RASReasonInvalidRevision	RAS failure reason
IPEC_RASReasonInvalidCallSignalAddress	RAS failure reason
IPEC_RASReasonInvalidIPEC_RASAddress	RAS failure reason
IPEC_RASReasonInvalidTerminalType	RAS failure reason
IPEC_RASReasonInvalidPermission	RAS failure reason
IPEC_RASReasonInvalidConferenceID	RAS failure reason
IPEC_RASReasonInvalidEndpointID	RAS failure reason
IPEC_RASReasonCallerNotRegistered	RAS failure reason
IPEC_RASReasonCalledPartyNotRegistered	RAS failure reason
IPEC_RASReasonDiscoveryRequired	RAS failure reason
IPEC_RASReasonDuplicateAlias	RAS failure reason
IPEC_RASReasonTransportNotSupported	RAS failure reason
IPEC_RASReasonCallInProgress	RAS failure reason
IPEC_RASReasonRouteCallToGatekeeper	RAS failure reason
IPEC_RASReasonRequestToDropOther	RAS failure reason
IPEC_RASReasonNotRegistered	RAS failure reason
IPEC_RASReasonUndefined	RAS failure reason
IPEC_RASReasonTerminalExcluded	RAS failure reason
IPEC_RASReasonNotBound	RAS failure reason
IPEC_RASReasonNotCurrentlyRegistered	RAS failure reason
IPEC_RASReasonRequestDenied	RAS failure reason
IPEC_RASReasonLocationNotFound	RAS failure reason
IPEC_RASReasonSecurityDenial	RAS failure reason
IPEC_RASTransportQOSNotSupported	RAS failure reasona
IPEC_RASResourceUnavailable	RAS failure reason
IPEC_RASInvalidAlias	RAS failure reason
IPEC_RASPermissionDenied	RAS failure reason
IPEC_RASQOSControlNotSupported	RAS failure reason
IPEC_RASIncompleteAddress	RAS failure reason
IPEC_RASFullRegistrationRequired	RAS failure reason
IPEC_RASRouteCallToSCN	RAS failure reason
IPEC_RASAliasesInconsistent	RAS failure reason
IPEC_RASReasonMax	RAS failure reason
IPEC_SIPReasonStatus400BadRequest = 5400	SIP Request Failure Response 400
IPEC_SIPReasonStatus401Unauthorized = 5401	SIP Request Failure Response 401
IPEC_SIPReasonStatus402PaymentRequired = 5402	SIP Request Failure Response 402
IPEC_SIPReasonStatus403Forbidden = 5403	SIP Request Failure Response 403
IPEC_SIPReasonStatus404NotFound = 5404	SIP Request Failure Response 404
IPEC_SIPReasonStatus405MethodNotAllowed =5405	SIP Request Failure Response 405
IPEC_SIPReasonStatus406NotAcceptable = 5406	SIP Request Failure Response 406
IPEC_SIPReasonStatus407ProxyAuthenticationRequired = 5407	SIP Request Failure Response 407
IPEC_SIPReasonStatus408RequestTimeout = 5408	SIP Request Failure Response 408
IPEC_SIPReasonStatus410Gone = 5410	SIP Request Failure Response 410
IPEC_SIPReasonStatus413RequestEntityTooLarge = 5413	SIP Request Failure Response 413
IPEC_SIPReasonStatus414RequestUriTooLong = 5414	SIP Request Failure Response 414
IPEC_SIPReasonStatus415UnsupportedMediaType = 5415	SIP Request Failure Response 415
IPEC_SIPReasonStatus416UnsupportedURIScheme = 5416	SIP Request Failure Response 416
IPEC_SIPReasonStatus420BadExtension = 5420	SIP Request Failure Response 420
IPEC_SIPReasonStatus421ExtensionRequired = 5421	SIP Request Failure Response 421
IPEC_SIPReasonStatus423IntervalTooBrief = 5423	SIP Request Failure Response 423
IPEC_SIPReasonStatus480TemporarilyUnavailable = 5480	SIP Request Failure Response 480
IPEC_SIPReasonStatus481CallTransactionDoesNotExist = 5481	SIP Request Failure Response 481
IPEC_SIPReasonStatus482LoopDetected = 5482	SIP Request Failure Response 482
IPEC_SIPReasonStatus483TooManyHops = 5483	SIP Request Failure Response 483
IPEC_SIPReasonStatus484AddressIncomplete =5484	SIP Request Failure Response 484
IPEC_SIPReasonStatus485Ambiguous = 5485	SIP Request Failure Response 485
IPEC_SIPReasonStatus486BusyHere = 5486	SIP Request Failure Response 486
IPEC_SIPReasonStatus487RequestTerminated = 5487	SIP Request Failure Response 487
IPEC_SIPReasonStatus488NotAcceptableHere = 5488	SIP Request Failure Response 488
IPEC_SIPReasonStatus491RequestPending = 5491	SIP Request Failure Response 491
IPEC_SIPReasonStatus493Undecipherable = 5493	SIP Request Failure Response 493
IPEC_SIPReasonStatus500ServerInternalError = 5500	SIP Server Failure Response 500
IPEC_SIPReasonStatus501NotImplemented = 5501	SIP Server Failure Response 501
IPEC_SIPReasonStatus502BadGateway = 5502	SIP Server Failure Response 502
IPEC_SIPReasonStatus503ServiceUnavailable = 5503	SIP Server Failure Response 503
IPEC_SIPReasonStatus504ServerTimeout = 5504	SIP Server Failure Response 504
IPEC_SIPReasonStatus505VersionNotSupported = 5505	SIP Server Failure Response 505
IPEC_SIPReasonStatus513MessageTooLarge = 5513	SIP Server Failure Response 513
IPEC_SIPReasonStatus600BusyEverywhere = 5600	SIP Global Failure Response 600
IPEC_SIPReasonStatus603Decline = 5603	SIP Global Failure Response 603
IPEC_SIPReasonStatus604DoesNotExistAnywhere = 5604	SIP Global Failure Response 604
IPEC_SIPReasonStatus606NotAcceptable = 5606	SIP Global Failure Response 606
IPEC_SIPReasonStatusBYE = 5800	SIP Failure Response 800
IPEC_SIPReasonStatusCANCEL = 5801	SIP Failure Response 801
IPEC_SIPReasonStatusMax

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