Isup Name-to-Cause Value Lookup, Name Value

A P P E N D I X D

E-ISUP Name-to-Cause Value Lookup

This appendix lists the Cisco E-ISUP protocol names and their associated cause values.

	Name	Value
-----		-----
	CC_EC_AccessBarred	54
	CC_EC_AccessInfoDiscarded	1
	CC_EC_Acknowledgement	55
	CC_EC_AddressIncomplete	56
	CC_EC_AnonymousCallRejection	116
	CC_EC_BaercapNotAvail	3
	CC_EC_BearcapNotAuthorized	2
	CC_EC_BearcapNotImp	4
	CC_EC_BlacklistBNumberMatched	137
	CC_EC_BlacklistCliLengthInvalid	133
	CC_EC_BlacklistCliMatched	134
	CC_EC_BlacklistCpcRestricted	135
	CC_EC_BlacklistNoCli	132
	CC_EC_BlacklistNoaRestricted	136
	CC_EC_Busy	57
	CC_EC_CallAwardedDeliveredEstCh	5
	CC_EC_CallIdHasBeenCleared	6
	CC_EC_CallIdInUse	7
	CC_EC_CallRejectCallGapping	102
	CC_EC_CallRejected	8
	CC_EC_CallTerminated	61
	CC_EC_CallTypeIncompatible	95
	CC_EC_CallingDroppedWhileOnHold	98
	CC_EC_CallingPartyOffHold	97
	CC_EC_ChIdNotExist	9
	CC_EC_ChTypeNotImp	10
	CC_EC_ChUnacceptable	11
	CC_EC_ChannelOutOfService	58
	CC_EC_Congestion	60
	CC_EC_CotFailure	141
	CC_EC_CugAccessBarred	108
	CC_EC_DEFAULT	32
	CC_EC_DestOutOfOrder	12
	CC_EC_DteControlledNotReady	59
	CC_EC_DteUncontrolledNotReady	79
	CC_EC_ElemTypeNotImp	13
	CC_EC_ExcessiveDigCallProceeding	123
	CC_EC_FacilityNotRegistered	62
	CC_EC_FacilityRejected	14
	CC_EC_FlowControlledCongestion	110
	CC_EC_GroupRestrictions	96
		Cisco H.323 Signaling Interface User Guide
		Cisco H.323 Signaling Interface User Guide
	OL-4806-01 Rev. A14		D-1
	OL-4806-01 Rev. A14		D-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 Isup Name-to-Cause Value Lookup, Name Value

Models: H.323

E-ISUP Name-to-Cause Value Lookup

Name

Value

CC_EC_DEFAULT

Cisco H.323 Signaling Interface User Guide

H.323 specifications