ITU-T H.450.5 Erratum 2 (04 2002) Call park and call pickup……

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1、COVERINGNOTEGENERALSECRETARIATINTERNATIONALTELECOMMUNICATIONUNIONSubject:Erratum2Geneva,22April2002RecommendationITU-TH.450.5(05/1999)TELECOMMUNICATIONSTANDARDIZATIONSECTOROFITUITU-TRecommendationH.450.5(05/1999)CallparkandcallpickupsupplementaryservicesforH.323Replaceclause10.1bythefoll

2、owing:10.1Operationalmodelandsignalflows10.1.1SS-PARKSeeFigures1to3.BEFORESERVICEAFTERSERVICEAB1AB1AB1TalkingC1TalkingParkingC1ParkedIdleParkedB2B2ParkedParkedC2C2CCCIdleParked-ToParked-ToT1610210-02Figure1/H.450.5–OperationalmodelforSS-PARKUnioninternationaledestélécommunicationsPlacede

3、sNations1211GENÈVE20Suisse–Switzerland–SuizaABCBasiccallbetweenAandBFACILITY(cpRequest.Invoke)SETUP(cpSetup.Invoke)PROGRESS(cpSetup.ReturnResult)RELCOM(cpRequest.ReturnResult)A–BIdleBparkedatCT1610220-02Figure2/H.450.5–SignallingflowforSS-PARKBCEDSETUP(cpSetup.Invoke)(Cr1)PROGRESS(cpSetu

4、p.ReturnResult)BisparkedatC.UsersDandEbelongtothesamepickup-groupasC.SETUP*)(groupIndicationOn.Invoke)(Cr2)RELEASECOMPLETE**)(groupIndicationOn.ReturnResult)SETUP*)(groupIndicationOn.Invoke)(Cr3)RELEASECOMPLETE**)(groupIndicationOn.ReturnResult)UserBstillparkedatC(UserBwaitsforbeingpicke

5、dup)*)H.450.1CallIndependentSignalling.**)Examplemessage(mayalsobeCONNECTorFACILITY).T1610230-02Figure3/H.450.5–SignallingflowforSS-PARK–Notificationofgroupmembers210.1.2SS-PICKUPofaparkedcall,unparkSeeFigure4.BEFORESERVICEAFTERSERVICEAB1A,D,...B1A,D,...B1IdleParkedPicking-upC1ParkedPick

6、ing-upC1TalkingTalkingB2B2ParkedParkedC2C2CCCParked-ToParked-ToIdleT1610240-02Figure4/H.450.5–OperationalmodelforSS-PICKUPa)ParkedcallunparkedbyParked-toUserCSeeFigure5.BCBisparkedtoC(cont.fromFigure2)CONNECT(pickup.Invoke)FACILITY(pickup.ReturnResult)CisactivewithBT1610250-02Figure5/H.4

7、50.5–SignallingflowforSS-PICKUP(UnparkbyParked-toUser)3b)ParkedcallunparkedbyUserD(mayalsobetheParkingUserA)SeeFigure6.BCD(A)BisparkedatC(cont.fromFigure2)SETUP*)(pickrequ.Invoke)(Cr1)FACILITY(pickup.Invoke)FACILITY(pickup.ReturnResult)FACILITY(pickrequ.ReturnResult)RELEA