ETSI TS 123 228 V8.5.0 (2008-06) Digital cellular

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2021-04-27

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ETSITS123228V8.5.0(2008-06)TechnicalSpecificationDigitalcellulartelecommunicationssystem(Phase2+);UniversalMobileTelecommunicationsSystem(UMTS);IPMultimediaSubsystem(IMS);Stage2(3GPPTS23.228version8.5.0Release8)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRETSIETSITS123228V8.5.0(2008-06)13GPPTS23.228version8.5.0Release8ReferenceRTS/TSGS-0223228v850KeywordsGSM,UMTSETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableat:©EuropeanTelecommunicationsStandardsInstitute2008.Allrightsreserved.DECTTM,PLUGTESTSTM,UMTSTM,TIPHONTM,theTIPHONlogoandtheETSIlogoareTradeMarksofETSIregisteredforthebenefitofitsMembers.3GPPTMisaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners.ETSIETSITS123228V8.5.0(2008-06)23GPPTS23.228version8.5.0Release8IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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(2008-06)33GPPTS23.228version8.5.0Release8ContentsIntellectualPropertyRights................................................................................................................................2Foreword.............................................................................................................................................................2Foreword...........................................................................................................................................................111Scope......................................................................................................................................................122References..............................................................................................................................................123Definitions,symbolsandabbreviations.................................................................................................153.1Definitions........................................................................................................................................................153.2Symbols............................................................................................................................................................173.3Abbreviations...................................................................................................................................................174IPmultimediasubsystemconcepts.........................................................................................................194.0General.............................................................................................................................................................194.1RelationshiptoCSdomainandtheIP-ConnectivityAccessNetwork.............................................................204.2IMSservicesconcepts......................................................................................................................................20