ETSI TS 124 504 V8.2.0 (2008-10) Digital cellular

ETSITS124503V8.2.0(2008-10)TechnicalSpecificationDigitalcellulartelecommunicationssystem(Phase2+);UniversalMobileTelecommunicationsSystem(UMTS);TISPAN;IPMultimediaCallControlProtocolbasedonSessionInitiationProtocol(SIP)andSessionDescriptionProtocol(SDP)Stage3[3GPPTS24.229(Release7),modified](3GPPTS24.503version8.2.0Release8)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRETSIETSITS124503V8.2.0(2008-10)13GPPTS24.503version8.2.0Release8ReferenceRTS/TSGC-0124503v820KeywordsGSM,UMTSETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableat:©EuropeanTelecommunicationsStandardsInstitute2008.Allrightsreserved.DECTTM,PLUGTESTSTM,UMTSTM,TIPHONTM,theTIPHONlogoandtheETSIlogoareTradeMarksofETSIregisteredforthebenefitofitsMembers.3GPPTMisaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners.ETSIETSITS124503V8.2.0(2008-10)23GPPTS24.503version8.2.0Release8IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards,whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver().PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisTechnicalSpecification(TS)hasbeenproducedbyETSI3rdGenerationPartnershipProject(3GPP).Thepresentdocumentmayrefertotechnicalspecificationsorreportsusingtheir3GPPidentities,UMTSidentitiesorGSMidentities.TheseshouldbeinterpretedasbeingreferencestothecorrespondingETSIdeliverables.ThecrossreferencebetweenGSM,UMTS,3GPPandETSIidentitiescanbefoundunder(2008-10)33GPPTS24.503version8.2.0Release8ContentsIntellectualPropertyRights................................................................................................................................2Foreword.............................................................................................................................................................2Foreword.............................................................................................................................................................51Scope........................................................................................................................................................62References................................................................................................................................................62.1Normativereferences.........................................................................................................................................6Endorsementnotice............................................................................................................................................7Globalmodificationsto3GPPTS24.229..........................................................................................................85.1.2.1Notificationaboutmultipleregisteredpublicuseridentities.....................................................335.1.3.1InitialINVITErequest..........................................................................................................................385.1.6.8.3Emergencysessionset-upwithinanemergencyregistration..........................................................395.1.6.8.4Emergencysessionsetupwithinanon-emergencyregistration......................................................405.2.4Registrationofmultiplepublicuseridentities...........................................................................485.2.10.4Generalt