Cisco Systems H.323 specs

			Appendix C Example of an HSI Configuration File
	CC_EC_NormalUnspecified	= CC_HC_NormalUnspecified
	CC_EC_NormalUnspecified	= CC_HC_NormalUnspecified
	CC_EC_NoCircuitAvailable	= CC_HC_NoCircuitChannelAvailable
	CC_EC_NetworkOutOfOrder		= CC_HC_NetworkOutOfOrder
	CC_EC_PermanentFrameModeOos		= CC_HC_PermanentFrameModeConnectionOutOfService
	CC_EC_PermanentFrameModeOperational = CC_HC_PermanentFrameModeConnectionOperational
	CC_EC_TemporaryFailure		= CC_HC_TemporaryFailure
	CC_EC_SwitchingEquipCongestion		= CC_HC_SwitchingEquipmentCongestion
	CC_EC_AccessInfoDiscarded		= CC_HC_AccessInformationDiscarded
	CC_EC_ReqCircuitUnavail		= CC_HC_RequestedCircuitChannelNotAvailable
	CC_EC_PrecedenceBlocked		= CC_HC_PrecedenceCallBlocked
	CC_EC_ResourcesUnavailUnspec		= CC_HC_ResourceUnavailable
	CC_EC_QualityUnavail		= CC_HC_QualityOfServiceNotAvailable
	CC_EC_ReqFacilityNotSubscr		= CC_HC_RequestedFacilityNotSubscribed
	CC_EC_OutgoingCallsBarredInCug		= CC_HC_OutgoingCallsBaredWithinCUG
	CC_EC_IncomingCallsBarredInCug		= CC_HC_IncomingCallsBaredWithinCUG
	CC_EC_BearcapNotAuthorized		= CC_HC_BearerCapabilityNotAuthorized
	CC_EC_BaercapNotAvail		= CC_HC_BearerCapabilityNotPresentlyAvailable
	CC_EC_InconOutgoingAccAndSubClass		= CC_HC_InconsistencyAcessInfoSubscriberClass
	CC_EC_ServiceOrOptionNotAvail		= CC_HC_ServiceOrOptionUnavailable
	CC_EC_BearcapNotImp		= CC_HC_BearerCapabilityNotImplemented
	CC_EC_ChTypeNotImp		= CC_HC_ChannelTypeNotImplemented
	CC_EC_ReqFacilityNotImp		= CC_HC_RequestedFacilityNotImplemented
	CC_EC_OnlyRestrictDigInfoBearer		= CC_HC_OnlyRestrictedDigitalBearerInfoCapability
	CC_EC_ServiceOrOptionNotImpUnspec		= CC_HC_ServiceOrOptionNotImplemented
	CC_EC_InvalidCallReferenceValue		= CC_HC_InvalidCallreferenceValue
	CC_EC_ChIdNotExist		= CC_HC_IdentifiedChannelDoesnotExist
	CC_EC_SuspendExistButNotThisId		= CC_HC_ASuspendedCallExistsThisCallIdDoesNot
	CC_EC_CallIdInUse		= CC_HC_CallIdentityInUse
	CC_EC_NoCallSuspended		= CC_HC_NoCallSuspended
	CC_EC_CallIdHasBeenCleared		= CC_HC_CallHavingTheRequestedCallIdHasBeenCleared
	CC_EC_UserNotMemberOfCug		= CC_HC_UserNotMemberOfCUG
	CC_EC_IncompatibleDest		= CC_HC_IncompatibleDestination
	CC_EC_NonExistentCug		= CC_HC_NonExistantCUG
	CC_EC_InvalidTns		= CC_HC_InvalidTransitNetworkSelection
	CC_EC_InvalidMsgUnspec		= CC_HC_InvalidMessage
	CC_EC_MandatoryElementMissing		= CC_HC_MandatoryInformationElementIsMissing
	CC_EC_MsgTypeNotImp		= CC_HC_MessageTypeNonExistantOrNotImplemented
	Cisco H.323 Signaling Interface User Guide
	Cisco H.323 Signaling Interface User Guide

C-8			OL-4806-01 Rev. A14
C-8			OL-4806-01 Rev. A14

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 Appendix C Example of an HSI Configuration File

Models: H.323

Appendix C Example of an HSI Configuration File

OL-4806-01 Rev. A14

H.323 specifications