Name-to-Cause Value Lookup | Cisco Systems H.323 guide

A P P E N D I X F

H.323 Name-to-Cause Value Lookup

This appendix lists the H.323 names and their associated cause values.

	Name	Value
----		-----
	CC_HC_ASuspendedCallExistsThisCallIdDoesNot	83
	CC_HC_AccessInformationDiscarded	43
	CC_HC_BearerCapabilityNotAuthorized	57
	CC_HC_BearerCapabilityNotImplemented	65
	CC_HC_BearerCapabilityNotPresentlyAvailable	58
	CC_HC_CallAwardedEstablishedChannel	7
	CC_HC_CallHavingTheRequestedCallIdHasBeenCleared	86
	CC_HC_CallIdentityInUse	84
	CC_HC_CallRejected	21
	CC_HC_ChannelTypeNotImplemented	66
	CC_HC_ChannelUnacceptable	6
	CC_HC_DEFAULT	31
	CC_HC_DestinationOutOfOrder	27
	CC_HC_ExchangeRouteError	25
	CC_HC_FacilityRejected	29
	CC_HC_IdentifiedChannelDoesnotExist	82
	CC_HC_IncomingCallsBaredWithinCUG	55
	CC_HC_IncompatibleDestination	88
	CC_HC_InconsistencyAcessInfoSubscriberClass	62
	CC_HC_InformationElementParameterNonExistantOrNotImplemented	99
	CC_HC_InvalidCallreferenceValue	81
	CC_HC_InvalidInformationElementContents	100
	CC_HC_InvalidMessage	95
	CC_HC_InvalidNumberFormat	28
	CC_HC_InvalidTransitNetworkSelection	91
	CC_HC_MandatoryInformationElementIsMissing	96
	CC_HC_MessageNotCompatibleWithCallState	101
	CC_HC_MessageTypeNonExistantOrNotImplemented	97
	CC_HC_MessageTypeNotCompatibleWithStateOrNonExistantOrNotImplemented	98
	CC_HC_MisdialedTrunkPrefix	5
	CC_HC_NetworkOutOfOrder	38
	CC_HC_NoAnswerFromAlertedUser	19
	CC_HC_NoCallSuspended	85
	CC_HC_NoCircuitChannelAvailable	34
	CC_HC_NoRouteToDestination	3
	CC_HC_NoRouteToSpecifiedTransitNetwork	2
	CC_HC_NoUserresponding	18
	CC_HC_NonExistantCUG	90
	CC_HC_NonSelectedUserClearing	26
	CC_HC_NormalCallClearing	16
	CC_HC_NormalUnspecified	31
	Cisco H.323 Signaling Interface User Guide
	Cisco H.323 Signaling Interface User Guide
	OL-4806-01 Rev. A14		F-1
	OL-4806-01 Rev. A14		F-1

H.323 specifications

Cisco Systems H.323 is a set of standards designed for transmitting audio, video, and data over packet-switched networks. It is a critical technology that enables real-time communication and has become integral to the world of VoIP (Voice over Internet Protocol) and video conferencing applications. Originally developed by the ITU-T, H.323 has been widely adopted and implemented by Cisco Systems, allowing organizations to leverage reliable and scalable communication solutions.

One of the standout features of H.323 is its ability to support interoperability among varying equipment and platforms. This means that devices from different manufacturers can communicate seamlessly, which is vital in a diverse technical environment. H.323 does this by defining protocols that handle signaling, media transport, and control, ensuring that various systems can work together effectively.

Key technologies utilized within H.323 include H.225 and H.245 signaling protocols. H.225 is responsible for call setup and management, establishing communication between endpoints. In contrast, H.245 manages the negotiation of media channels, allowing devices to configure themselves based on the capabilities of each other. This adaptability is crucial for dynamic network conditions typical in VoIP applications.

Another defining characteristic of H.323 is its support for multiple types of multimedia communication, including point-to-point and multipoint calls. This flexibility supports everything from simple audio calls to complex videoconferencing setups, where many participants can share video and audio streams concurrently. Cisco enhances this capability through its hardware and software offerings, optimizing performance for conference calls.

H.323 also features robust error resilience mechanisms. This ensures that real-time data, which is typically sensitive to delays and losses, can be transmitted with minimal disruption. Moreover, it facilitates quality of service (QoS) implementation, allowing organizations to prioritize voice and video traffic over less critical data services, thereby improving the overall user experience.

In conclusion, Cisco Systems H.323 stands out as a comprehensive solution for real-time communication over packet-based networks. Its main features, including interoperability, multimedia support, and enhanced error resilience, position it as a relevant technology in both corporate and personal communication settings. As organizations continue to adopt cloud and hybrid communication models, H.323 remains a reliable backbone for ensuring connectivity and collaboration across diverse platforms.

Cisco Systems H.323 manual Name-to-Cause Value Lookup

Models: H.323

H.323 Name-to-Cause Value Lookup

Name

CC_HC_DEFAULT

Cisco H.323 Signaling Interface User Guide

H.323 specifications