SIST EN 300 955 V7.0.1:2003

• Abstract:

  Upgrade from Phase 2+ to Release 1998

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.070.50 - Global System for Mobile Communication (GSM)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 300 955 V7.0.1 (2000-01) - Digital cellular telecommunications system (Phase 2+) (GSM); Advice of Charge (AoC) supplementary services; Stage 3 (GSM 04.86 version 7.0.1 Release 1998)

SIST EN 300 955 V7.0.1:2003 is the SIST version of ETSI EN 300 955 V7.0.1 for GSM Advice of Charge (AoC) supplementary services. It specifies the radio-interface procedures for Advice of Charge (Information) (AoCI) and Advice of Charge (Charging) (AoCC) in Digital cellular telecommunications system (Phase 2+) (GSM) Release 1998, for mobile stations and network implementations that handle charging advice during call setup, re-establishment, and clearing.

What does SIST EN 300 955 V7.0.1:2003 specify?

SIST EN 300 955 V7.0.1:2003 specifies the procedures used at the radio interface reference point U for charging supplementary services. The document focuses on operational signaling between the Mobile Station (MS) and the network for normal operation, registration, erasure, activation, deactivation, invocation, and interrogation.

The scope makes clear that provision and withdrawal of supplementary services are administrative matters between the subscriber and the service provider and do not create radio-interface signaling. The document is organized into a general scope section, references, abbreviations, two main service clauses, and an informative change request history annex.

Annex	What it covers
Annex A	Change Request History

What are the key requirements of SIST EN 300 955 V7.0.1:2003?

SIST EN 300 955 V7.0.1:2003 centers on how the network sends charge advice information and how the MS reacts during a call. For both AoCI and AoCC, the MS receives Charge Advice Information (CAI) so it can calculate units in real time, which is what supports user-visible charging indication and internal call metering.

AoCI and AoCC charging advice

For a successful request, the network sends CAI according to GSM 02.24, GSM 02.86, and GSM 03.86. The document says multiparty calls are handled in the MS by separate processes, but each call is treated for unit calculation like a normal two-party call. In practice, this means equipment has to maintain charging state per call and update it when the charging rate changes.

Call re-establishment

If the MS detects a radio link failure, Chargeable Duration (CDUR) is suspended. If call re-establishment is attempted, the MS resumes CDUR only after a successful Mobility Management (MM) connection and successful seizure of a Traffic Channel (TCH) in the appropriate mode. This matters because charging duration must pause and restart consistently across radio interruptions.

Message exchange for originated, terminated, and changed charging information

For MS-originated calls, MS-terminated calls, and changes in charging information, the document uses FACILITY procedures with the operation ForwardChargeAdvice carrying AoCI or AoCC and ChargingInformation. The charging information is acknowledged only if the MS supports the relevant functionality defined in GSM 02.24 and GSM 02.86. Implementers therefore need to support the correct signaling path before they can expect acknowledgements.

Unsuccessful outcomes

For AoCI, if the MS does not acknowledge receipt of charging information, the network performs no signaling. For AoCC, if timer T(AoC) expires before acknowledgment, the network releases the call and applies network-initiated clearing procedures. The release uses cause #69, Requested facility not implemented.

ACM limit handling

If the change stored in the Accumulated Call Meter (ACM) becomes equal to or greater than ACMmax, the MS initiates call clearing. The cause value is #68, ACM equal to or greater than ACMmax. In practice, this is the document behavior that stops a call when the charging meter reaches the configured maximum.

Service control operations

For both AoCI and AoCC, activation, deactivation, invocation, interrogation, registration, and erasure are not applicable. That tells implementers that the standard is about call-time charging advice procedures, not subscriber-side service management.

What terms does SIST EN 300 955 V7.0.1:2003 define?

• Advice of Charge (Information) (AoCI) - The service that sends charging information to the MS so the subscriber can be informed during call handling.
• Advice of Charge (Charging) (AoCC) - The service that provides charging information for actual call charging behavior in the MS.
• Charge Advice Information (CAI) - The information sent by the network that lets the MS calculate charging units in real time.
• Mobile Station (MS) - The user equipment that receives charging advice and may clear the call when meter limits are reached.
• Chargeable Duration (CDUR) - The charged call duration timer, which is suspended during radio link failure and resumed after re-establishment.
• Accumulated Call Meter (ACM) - The stored call-meter value used to decide whether the call must be cleared when it reaches ACMmax.
• Traffic Channel (TCH) - The channel that must be seized again before charging duration resumes after re-establishment.

Who uses SIST EN 300 955 V7.0.1:2003?

SIST EN 300 955 V7.0.1:2003 is used by GSM equipment vendors, mobile network engineers, protocol designers, and test laboratories working on supplementary services and charging behavior. It is also relevant for quality assurance and interoperability work where MS and network signaling must match the GSM procedures for AoCI and AoCC.

What changed in SIST EN 300 955 V7.0.1:2003 from the previous edition?

The change request history shows a publication update to version 7.0.1 after version 7.0.0. The stated update is for publication text and figures, while the document history also records the Release 1998 upgrade of the GSM 04.86 specification.

Which standards are used with SIST EN 300 955 V7.0.1:2003?

The document relies on several GSM references for definitions, coding, and signaling behavior:

• GSM 01.04 - abbreviations and acronyms
• GSM 02.24 - Charge Advice Information
• GSM 02.86 - AoC service definition
• GSM 03.86 - charging supplementary services stage 2
• GSM 04.02 - PLMN access reference configuration
• GSM 04.07 - layer 3 signaling general aspects
• GSM 04.08 - mobile radio interface layer 3 specification
• GSM 04.10 - supplementary services layer 3 general aspects
• GSM 04.80 - formats and coding
• GSM 03.11 - technical realization of supplementary services

What does the SIST EN 300 955 V7.0.1:2003 document contain?

SIST EN 300 955 V7.0.1:2003 contains the procedure descriptions for AoCI and AoCC, plus call-flow figures for originated calls, terminated calls, and charging-information changes. The figures show the message exchange between MS and network, including FACILITY, CONNECT, DISCONNECT, RELEASE, and RELEASE COMPLETE behavior.

The document also includes the handling of call re-establishment, unsuccessful acknowledgment, timer expiry, and ACM threshold clearing. Annex A provides the change request history for GSM 04.86, which is useful for tracking how the specification reached Release 1998 and version 7.0.1.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); Advice of Charge (AoC) supplementary services; Stage 3 (GSM 04.86 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 300 955 Version 7.0.1SIST EN 300 955 V7.0.1:2003en01-december-2003SIST EN 300 955 V7.0.1:2003SLOVENSKI
STANDARD
ETSIEN300955V7.0.1(2000-01)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);AdviceofCharge(AoC)supplementaryservices;Stage3(GSM04.86version7.0.1Release1998)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 955 V7.0.1:2003

ETSIETSIEN300955V7.0.1(2000-01)2(GSM04.86version7.0.1Release1998)ReferenceREN/SMG-030486Q7KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/[e-mail]ETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]Ideliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 955 V7.0.1:2003

ETSIETSIEN300955V7.0.1(2000-01)3(GSM04.86version7.0.1Release1998)ContentsIntellectualPropertyRights.4Foreword.40Scope.50.1References.50.2Abbreviations.71AdviceofCharge(Information)(AoCI).71.1Normaloperationwithsuccessfuloutcome.71.1.1Callre-establishment.71.1.2MSoriginatedcall.71.1.3MSterminatedcall.71.1.4Changeofcharginginformation.81.2Normaloperationwithunsuccessfuloutcome.81.3Activation,deactivationandinvocation.81.4Interrogation,registrationanderasure.82AdviceofCharge(Charging)(AoCC).82.1Normaloperationwithsuccessfuloutcome.82.1.1Callre-establishment.92.1.2MSoriginatedcall.92.1.3MSterminatedcall.92.1.4Changeofcharginginformation.92.2Normaloperationwithunsuccessfuloutcome.102.3AccumulatedCallMeterisequaltoorgreaterthanACMmax.102.4Activation,deactivationandinvocation.102.5Interrogation,registrationanderasure.10AnnexA(informative):ChangeRequestHistory.11History.12SIST EN 300 955 V7.0.1:2003

ETSIETSIEN300955V7.0.1(2000-01)4(GSM04.86version7.0.1Release1998)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).Thepresentdocumentspecifiestheproceduresusedattheradiointerfacefornormaloperation,registration,erasure,activation,deactivation,invocationandinterrogationofchargingsupplementaryserviceswithinthedigitalcellulartelecommunicationssystem.ThespecificationfromwhichthepresentdocumenthasbeenderivedwasoriginallybasedonCEPTdocumentation,hencethepresentationofthepresentdocumentmaynotbeentirelyinaccordancewiththeETSI/PNErules.ThecontentsofthepresentdocumentissubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillbere-releasedwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version7.x.ywhere:7indicatesRelease1998ofGSMPhase2+.xtheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:31December1999DateoflatestannouncementofthisEN(doa):31March2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2000DateofwithdrawalofanyconflictingNationalStandard(dow):30September2000SIST EN 300 955 V7.0.1:2003

ETSIETSIEN300955V7.0.1(2000-01)5(GSM04.86version7.0.1Release1998)0ScopeThepresentdocumentspecifiestheproceduresusedattheradiointerface(referencepointUmasdefinedinGSM04.02)fornormaloperation,registration,erasure,activation,deactivation,invocationandinterrogationofchargingsupplementaryservices.Theprovisionandwithdrawalofsupplementaryservicesisanadministrativematterbetweenthemobilesubscriberandtheserviceproviderandcausesnosignallingontheradiointerface.InGSM04.10thegeneralaspectsofthespecificationofsupplementaryservicesatthelayer3radiointerfacearegiven.GSM04.80specifiestheformatsandcodingforthesupplementaryservices.DefinitionsanddescriptionsofsupplementaryservicesaregiveninGSM02.04andGSM02.8xandGSM02.9x-series.GSM02.24and02.86arerelatedtothechargingsupplementaryservices.TechnicalrealizationofsupplementaryservicesisdescribedinGSM03.11andGSM03.8xandGSM03.9x-series.GSM03.86isrelatedtothechargingsupplementaryservices.TheproceduresforCallControl,MobilityManagementandRadioResourcemanagementatthelayer3radiointerfacearedefinedinGSM04.07andGSM04.08.Thefollowingsupplementaryservicesbelongtothechargingsupplementaryservicesandaredescribedinthepresentdocument:-AdviceofCharge(Information)(AoCI)(clause1);-AdviceofCharge(Charging)(AoCC)(clause2).0.1ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)orThefollowingdocumentscontainprovisionswhich,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]GSM02.04:"Digitalcellulartelecommunicationssystem(Phase2+);Generalonsupplementaryservices".[3]GSM02.24:"Digitalcellulartelecommunicationssystem(Phase2+);DescriptionofChargeAdviceInformation(CAI)".[4]GSM02.81:"Digitalcellulartelecommunicationssystem(Phase2+);Lineidentificationsupplementaryservices-Stage1".[5]GSM02.82:"Digitalcellulartelecommunicationssystem(Phase2+);CallForwarding(CF)supplementaryservices-Stage1".SIST EN 300 955 V7.0.1:2003

ETSIETSIEN300955V7.0.1(2000-01)6(GSM04.86version7.0.1Release1998)[6]GSM02.83:"Digitalcellulartelecommunicationssystem(Phase2+);CallWaiting(CW)andCallHold(HOLD)supplementaryservices-Stage1".[7]GSM02.84:"Digitalcellulartelecommunicationssystem(Phase2+);MultiParty(MPTY)supplementaryservices-Stage1".[8]GSM02.85:"Digitalcellulartelecommunicationssystem(Phase2+);ClosedUserGroup(CUG)supplementaryservices-Stage1".[9]GSM02.86:"Digitalcellulartelecommunicationssystem(Phase2+);AdviceofCharge(AoC)supplementaryservices-Stage1".[10]GSM02.88:"Digitalcellulartelecommunicationssystem(Phase2+);CallBarring(CB)supplementaryservices-Stage1".[11]GSM02.90:"Digitalcellulartelecommunicationssystem(Phase2+);UnstructuredSupplementaryServicesData(USSD)-Stage1".[12]GSM03.02:"Digitalcellulartelecommunicationssystem(Phase2+);Networkarchitecture".[13]GSM03.11:"Digitalcellulartelecommunicationssystem(Phase2+);Technicalrealizationofsupplementaryservices".[14]GSM03.81:"Digitalcellulart
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