ITU H.450.11:2001
ITU H.450.11:2001 Call Intrusion Supplementary Services Describes the procedures and the signalling protocol for the Call Intrusion supplementary service in H.323 (Packet Based Multimedia Communications Systems) networks.
Table of Contents
1Scope2References
3Termsanddefinitions
4Abbreviationsandacronyms
5SS-CIservicedescription
5.1Implementationoptions
5.2Provisionofcapabilityandprotectionlevels
5.3Normalprocedures
5.3.1Activation/deactivation/registration/interrogation
5.3.2Invocationandoperation
5.3.3Exceptionalprocedures
5.4Interactionswithothersupplementaryservices
5.4.1CallTransfer(SS-CT)
5.4.2CallForwardingUnconditional(SS-CFU)
5.4.3CallForwardingBusy(SS-CFB)
5.4.4CallForwardingonNoReply(SS-CFNR)/Call
Deflection(SS-CD)
5.4.5CallHold
5.4.6CallPark/CallPickup
5.4.7CallWaiting
5.4.8MessageWaitingIndication
5.4.9NamePresentation
5.4.10CompletionofCallstoBusySubscriber(SS-CCBS)
5.4.11CompletionofCallsonNoReply(SS-CCNR)
5.4.12CallOffer(SS-CO)
5.4.13Commoninformation
5.4.14CallLinkage
6Messagesandinformationelements
7Signallingprocedures
7.1ActionsatuserA'sendpoint
7.1.1ProcedureforinitialinvocationofSS-CI
7.1.2Optionalprocedureforinvocationofisolation
7.1.3Optionalprocedureforinvocationofforced
release
7.1.4Optionalprocedureforinvocationofwait-on-busy
7.1.5Optionalprocedurefor(re-)invocationofSS-CI
onawaitingcall
7.1.6ProcedureforcompletionofSS-CI
7.2ActionsatuserB'sendpoint
7.2.1ProcedureforinvocationofSS-CI
7.2.2Optionalproceduresforinvocationofisolation
7.2.3Optionalproceduresforinvocationofforcedrelease
7.2.4Optionalproceduresforwait-on-busy(WOB)
7.2.5ProceduresforcompletionofSS-CI
7.3ActionsatuserC'sendpoint
8Interworkingandinteractions
8.1InterworkingwithSCN
8.2ProtocolinteractionbetweenSS-CIandother
supplementaryservices
8.2.1CallTransfer(SS-CT)
8.2.2CallForwardingUnconditional(SS-CFU)
8.2.3CallForwardingBusy(SS-CFB)
8.2.4CallForwardingonNoReply(SS-CFNR)/Call
Deflection(SS-CD)
8.2.5CallHold
8.2.6CallPark/CallPickup
8.2.7CallWaiting
8.2.8MessageWaitingIndication
8.2.9NamePresentation
8.2.10CompletionofCallstoBusySubscriber(SS-CCBS)/
onNoReply(SS-CCNR)
8.2.11CallOffer(SS-CO)
8.2.12CommonInformation
8.2.13CallLinkage
9Gatekeeper/Proxyactions
9.1GatekeeperpassesonSS-CIoperationstotheendpoint
9.2Gatekeeper/proxyactsonbehalfofanendpoint
9.2.1Gatekeeper/proxyactsonbehalfofendpointA
9.2.2Gatekeeper/proxyactsonbehalfofendpointB
9.2.3Gatekeeper/proxyactsonbehalfofendpointC
10Dynamicdescription
10.1Operationalmodel
10.2Signallingflows
10.2.1SuccessfulSS-CI-directcallsignalling
10.2.2UnsuccessfulSS-CI
10.2.3SuccessfulSS-CI-GKroutedcallsignalling
10.3CommunicationbetweenanendpointAsignallingentity
(EASE)anditsSignallingentityuser
(forinformationpurposes)
10.3.1Tableofprimitives
10.3.2Primitivedefinition
10.3.3Parameterdefinition
10.4CommunicationbetweenanendpointBsignallingentity
(EBSE)anditssignallingentityuser
(forinformationpurposes)
10.4.1Tableofprimitives
10.4.2Primitivedefinition
10.4.3Parameterdefinition
10.5CommunicationbetweenanendpointCsignallingentity
(ECSE)anditssignallingentityuser
(forinformationpurposes)
10.5.1Tableofprimitives
10.5.2Primitivedefinition
10.5.3Parameterdefinition
10.6Callstates
10.6.1CallstatesatendpointA
10.6.2CallstatesatendpointB
10.6.3CallstatesatendpointC
10.7Timers
10.7.1TimersatendpointA
10.7.2TimersatendpointB
11OperationsinsupportofCallIntrusionsupplementary
service
12Specificationanddescriptionlanguage(SDL)diagrams
forSS-CI
12.1BehaviourofuserA'sendpoint
12.2BehaviourofuserB'sendpoint
12.3BehaviourofuserC'sendpoint