SIST EN 300 923 V7.0.1:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); Description of Charge Advice Information (CAI) (GSM 02.24 version 7.0.1 Release 1998)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 923 Version 7.0.1SIST EN 300 923 V7.0.1:2003en01-december-2003SIST EN 300 923 V7.0.1:2003SLOVENSKI
STANDARD



SIST EN 300 923 V7.0.1:2003



ETSIEN300923V7.0.1(2000-01)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);DescriptionofChargeAdviceInformation(CAI)(GSM02.24version7.0.1Release1998)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 923 V7.0.1:2003



ETSIETSIEN300923V7.0.1(2000-01)2(GSM02.24version7.0.1Release1998)ReferenceREN/SMG-010224Q7KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88Internetsecretariat@etsi.frIndividualcopiesofthisETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frImportantnoticeThisETSIdeliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 923 V7.0.1:2003



ETSIETSIEN300923V7.0.1(2000-01)3(GSM02.24version7.0.1Release1998)ContentsIntellectualPropertyRights.4Foreword.41Scope.51.1References.51.2Definitionsandabbreviations.52Introduction.63ChargeAdviceInformation.74FunctionaloperationinMS.84.1HandlingoftheCAIelements.84.2Handlingofcallmeters.94.2.1TheCurrentCallMeter(CCM).94.2.2TheAccumulatedCallMeter(ACM).104.2.3TheACMMaximumValue(ACMmax).104.2.4ThePriceperUnitandCurrencyTable(PUCT).104.3Specialprocessing.105FunctionaloperationinPLMN.115.1Outgoingcalls.115.2Incomingcalls.11AnnexA(informative):Changehistory.13History.14SIST EN 300 923 V7.0.1:2003



ETSIETSIEN300923V7.0.1(2000-01)4(GSM02.24version7.0.1Release1998)IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbytheSpecialMobileGroup(SMG).ThepresentdocumentdescribestheoverallviewofhowthesupplementaryserviceofChargeAdviceInformation(CAI)operateswithinthedigitalcellulartelecommunicationssystem.ThecontentsofthepresentdocumentmaybesubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillthenbere-submittedforformalapprovalproceduresbyETSIwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version7.x.ywhere:7 GSM Phase 2+ Release 1998;xtheseconddigitisincrementedforchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.;ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:31December1999DateoflatestannouncementofthisEN(doa):31March2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2000DateofwithdrawalofanyconflictingNationalStandard(dow):30September2000SIST EN 300 923 V7.0.1:2003



ETSIETSIEN300923V7.0.1(2000-01)5(GSM02.24version7.0.1Release1998)1ScopeThechargingsupplementaryserviceisdescribedinGSM02.86[2]andtherelevantchargingprinciplesaregivenintherelevantGSMMoUAssociationdocuments.Theseservicesaredesignedtosupplytoamobileusersufficientinformationtoallowareal-timeestimatetobemadeofthebillwhichwilleventuallybeleviedinthehomePLMNontheMobileStation(MS)subscriber.InthecaseofcertainMSuses,forexampleamobilepayphone,thisestimatecouldbesubjecttofurtherprocessing(e.g.topresentthechargesincurrency,ratherthanunits,thismayincludeanadditionalmarkup).ThisadditionalprocessingisnotdescribedinthepresentdocumentinordertoavoidconstrainingtheevolutionoftheMSproductinthisarea.ThepresentdocumentgivesanoverallviewofhowthissupplementaryserviceshalloperatebothinthePLMNandwithintheMS.Textgiveninthepresentdocumentisrequiredtodefinefunctionalityandisnotintendedtoconstrainimplementation.1.1ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.•Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.•Foraspecificreference,subsequentrevisionsdonotapply.•Foranon-specificreference,thelatestversionapplies.•Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.•ForthisRelease1998document,referencestoGSMdocumentsareforRelease1998versions(version7.x.y).[1]GSM01.04:"Digitalcellulartelecommunicationssystem(Phase2+);Abbreviationsandacronyms".[2]GSM02.86:"Digitalcellulartelecommunicationsystem(Phase2+);AdviceofCharge(AoC)SupplementaryServices-Stage1".[3]GSM11.11:"Digitalcellulartelecommunicationsystem(Phase2+);SpecificationoftheSubscriberIdentityModule-MobileEquipment(SIM-ME)interface".1.2DefinitionsandabbreviationsInadditiontothefollowing,abbreviationsusedinthepresentdocumentarelistedinGSM01.04[1].Markup(MU):Anincreaseoverthebasicchargee.g.toprovideextrarevenueortocoveradditionalcosts.ServiceProvider(SP):TheorganizationthroughwhichthesubscriberobtainsGSMtelecommunicationservices.Thismaybethenetworkoperatororpossiblyaseparatebody.HomeUnits(HU):ThepublishedbasictelecommunicationunitaspublishedbytheHPLMN.ThishasapublishedvalueexpressedinthecurrencyoftheHomecountry.SIST EN 300 923 V7.0.1:2003



ETSIETSIEN300923V7.0.1(2000-01)6(GSM02.24version7.0.1Release1998)LocalPLMN(LPLMN):TheLPLMNistheHPLMNorVPLMNdependingonthelocationoftheMSatthetimeandisthePLMNwithwhichtheMSisinterworkingviatheradiointerface.LocalUnits(LU):ThepublishedbasictelecommunicationunitaspublishedbytheLPLMN.Thishasapublishedvalueexpressedinthecurrencyofthelocalcountry.PriceperUnitandCurrencyTable(PUCT):ThePUCTisthevalueoftheHomeunitinacurrencychosenbythesubscriber.ThePUCTisstoredintheSIM.ThevalueofthePUCTcanbesetbythesubscriberandmayexceedthevaluepublishedbytheHPLMN.ThePUCTvaluedoesnothaveanyimpactonthechargesraisedbytheHPLMN.CurrentCallMeter(CCM):TheaccumulatedchargeascomputedbytheMS,expressedintermsofHomeunits.AccumulatedCallMeter(ACM):TheaccumulatedchargeforboththecurrentcallandallprecedingcallsascomputedbytheMS,expressedintermsofHomeunits.TheACMisstoredintheSIM.ACMMaximumvalue(ACMmax):TheACMmaxsetstheupperlimitfortheACM.TheACMmaxisstoredintheSIM.ThevalueoftheACMmaxcanbesetbythesubscriber.Chargingpoint(CHP):Thetimeatwhichchargingcommencesi.e.atthepointwhenthecalledpartyanswersortheequivalent.Endofchargepoint(CEND):Thetimeatwhichthecalling,orcalled,partystopschargingbytheterminationofthecallorbyanequivalentprocedureinvokedbythenetworkorbyfailureoftheradiopath.AdviceofCharge(AOC):ThechargeascomputedbytheMS,expressedintermsofHomeUnits.Segment:AchargingelementasdefinedbyCCITT,inoctets(upto64).2IntroductionTheprincipleofthisserviceisthattheMSshallbecapableofindicatingthecostofacallinhomeunitsasabasicservice.ThisistheAdviceofCharge(AOC).TheabilityfortheMStoperformfurtherprocessingonAOCisnotprecluded.Ifthesubscriberwishes,theMSshallindicatethevalueofCCM,ACM,ACMmaxinthecurrencyshehasindicatedusingthePUCT.Atthechargingpoint,theMSisinformedofthechargingrate.TheMSshallthenuseitsindependentinternalclocktotimethecallfromthechargingpointtotheendofcalli.e.thechargeableduration(CDUR)ismeasuredbytheMS.Inthecaseofmultiplecallsthisappliesseparatelyforeachcall(seesubclause4.3l).ThetimetakenattemptingtoperformcallreestablishmentisnotincludedinCDUR(seesubclause4.3m).Byusingthecalculationsdescribedinclause4,theMSshallbeabletoderivethenumberofhomeunitsused.SIST EN 300 923 V7.0.1:2003



ETSIETSIEN300923V7.0.1(2000-01)7(GSM02.24version7.0.1Release1998)Duetotheindependenceofthecalculatedvalue,anexactone-to-onerelationwiththebillcannotbeguaranteed.ThisdiscrepancyisduetotheshortdelaysinsignallingbetweentheMSandthenetwork,e.g.transmissionofchargingpointandendofcallsignals.Inderivingthepresentdocumentthefollowingprinciplesareassumed:i)Formobileoriginatedcalls,themobileuserpaysfortheconnectiontothediallednumber,asperthepublishedtariffoftheLocalPLMN,plusamark-updefinedbytheHPLMNtocoveradditionaladministrationcosts,whenroaming.ItisassumedthattheMSsubscriberwillnotbechargedfortheforwardedlegifthediallednumberhassetcallforwarding.Ifadditionalchargingisrequiredforthisforwardedleg,thenitisassumedthatsuchchargingwillbeappliedonlytothecalledparty.Thisfollowscurrenttelecommunicationspractice.ii)Formobileterminatedcalls,anychargesetforincomingcallsisthatbasedonthetariffaspublishedbytheHPLMN.Thetariffaspublishedfortheroamingextensionchargesisassumedtobetimeanddateinvariant.Fortheavoidanceofdoubt,thisassumptiondoesnotprecluderoutinetariffchanges.iii)ChargeratesforcallsoriginatingwithinaPLMNvarydependingupon,forexample,location,destination,service,timeofday,typeofdayandanymarkups.iv)TheunitsindicatedintheadviceofchargearealwaysgivenintermsofHomeunits,thevalueofwhichisdefinedandpublishedbytheHPLMN,regardlessofthePLMNinwhichtheywereincurredorthecalldirectionorthetypeofcallincludingsupplementaryserviceanddatacalls.3ChargeAdviceInformationTheMSissuppliedwiththenecessaryChargeAdviceInformation(CAI)atthechargingpointonapercallbasis,inasignallingmessageovertheradiointerface.TheMSusestheCAIelementstocomputetheAOCvaluefortherelevantcall.ThusthesignallingCAInotonlyprovidescharginginformation,butindicatesthechargingpointandhenceinitiatesthetimingofthechargeableduration.TheinformationsenttotheMSfromtheMSCconsistsofsevenelementsasfo
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