A P P E N D I X E

E-ISUP Cause Value-to-Name Lookup

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

Value Name

---------

1CC_EC_AccessInfoDiscarded

2CC_EC_BearcapNotAuthorized

3CC_EC_BearcapNotAvail

4CC_EC_BearcapNotImp

5CC_EC_CallAwardedDeliveredEstCh

6CC_EC_CallIdHasBeenCleared

7CC_EC_CallIdInUse

8CC_EC_CallRejected

9CC_EC_ChIdNotExist

10CC_EC_ChTypeNotImp

11CC_EC_ChUnacceptable

12CC_EC_DestOutOfOrder

13CC_EC_ElemTypeNotImp

14CC_EC_FacilityRejected

15CC_EC_IncompatibleDest

16CC_EC_InterworkUnspec

17CC_EC_InvalidCallReferenceValue

18CC_EC_InvalidElemContents

19CC_EC_InvalidMsgUnspec

20CC_EC_InvalidNumberFormat

21CC_EC_InvalidTns

22CC_EC_MandatoryElementMissing

23CC_EC_MsgInWrongState

24CC_EC_MsgTypeNotImp

25CC_EC_MsgTypeNotImpOrWrongState

26CC_EC_NetworkOutOfOrder

27CC_EC_NoCallSuspended

28CC_EC_NoAnswerAlertedUser

29CC_EC_NoCircuitAvailable

30CC_EC_NonSelectedUserClearing

31CC_EC_NormalClearing

32CC_EC_DEFAULT

32CC_EC_NormalUnspecified

33CC_EC_NoRouteToDest

34CC_EC_NoRouteToTns

35CC_EC_NoUserResponding

36CC_EC_NumberChanged

37CC_EC_OnlyRestrictDigInfoBearer

38CC_EC_ProtocolErrorUnspec

39CC_EC_QualityUnavail

40CC_EC_RecoveryOnTimerExpiry

41CC_EC_ReqCircuitUnavail

 

 

Cisco H.323 Signaling Interface User Guide

 

 

 

 

 

 

 

OL-4806-01 Rev. A14

 

 

E-1

 

 

 

 

 

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