ITU H.450.5:1999
ITU H.450.5:1999 Call Park And Call Pickup Supplementary Services For H.323 Describes the procedures and the signalling protocol scenarios for the Call Park and Call Pickup supplementary services in H.323.
Table of Contents
1Scope2References
3Termsanddefinitions
4Abbreviationsandacronyms
5Description
5.1CallPark
5.2CallPickup
6Messagesandinformationelements
7Procedures
7.1ActionsattheParkingEndpointA
7.2ActionsattheParkedEndpointB
7.3ActionsattheParked-ToEndpoint
7.4ActionsattheCallingendpoint(SS-PICKUPof
analertingcall)
7.5ActionsattheAlertingendpoint(SS-PICKUPof
analertingcall)
7.6ActionsattheServedendpoint
7.7ActionsataPickupGroupmemberendpoint
7.8ActionsatthePicking-upEndpoint
7.9Alternativeprocedures
8Inter-working
8.1Inter-workingwithSCN
8.2Inter-workingwithothersupplementaryservices
8.3InteractionwithH.225.0parameters
9Gatekeeperactions
9.1Normalprocedures
9.2AlternativeGKproceduresforSS-PICKUPofan
Alertingcall
9.3AlternativeGKproceduresforSS-PARKand
SS-PICKUPofaparkedcall/Dest[1910R/XYZ
null365null]/Parent4630R/Prev4710R
10Dynamicdescription
10.1Operationalmodelandsignalflows
10.2CommunicationbetweenaSignallingentityandits
Signallingentityuser(PrimitivesandParameters)
10.3CallStates
10.4Timers
11OperationinSupportofSS-PARKandSS-PICKUP
12SpecificationandDescriptionLanguage(SDL)Diagrams
12.1SS-PARKSDLs
12.2SS-PICKUPSDLs
12.3SS-PARK,SS-PICKUPGroupnotificationsSDLs