SIST EN 302 646-1:2000

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Integrated Services Digital Network (ISDN); Signalling System No.7; Digital cellular telecommunications system (Phase 2+); Application of ISDN User Part (ISUP) version 3 for the ISDN-Public Land Mobile Network (PLMN) signalling interface; Part 1: Protocol specification (GSM 09.14 version 7.0.2 Release 1998)33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 302 646-1 Version 7.0.23SIST EN 302 646-1:2000en01-MDQXDU-20003SIST EN 302 646-1:2000SLOVENSKI
STANDARD



SIST EN 302 646-1:2000



ETSIEN302646-1V7.0.2(2000-09)EuropeanStandard(Telecommunicationsseries)IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;Digitalcellulartelecommunicationssystem(Phase2+);ApplicationofISDNUserPart(ISUP)version3fortheISDN-PublicLandMobileNetwork(PLMN)signallinginterface;Part1:Protocolspecification(GSM09.14version7.0.2Release1998)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 302 646-1:2000



ETSIETSIEN302646-1V7.0.2(2000-09)2(GSM09.14version7.0.2Release1998)ReferenceREN/SPS-01047-1KeywordsGSM,interworking,ISDN,ISUP,mobile,PLMN,radio,SS7ETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 302 646-1:2000



ETSIETSIEN302646-1V7.0.2(2000-09)3(GSM09.14version7.0.2Release1998)ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.73Abbreviations.94Generalprinciples.105Exceptionsandclarificationsforbasiccall.105.1Formatsandcodes.105.2Basiccallsignallingprocedures.105.2.1Signallingproceduresforconnectiontypeallowingfallback.105.2.2Echocontrolprocedure.115.2.3CallsfromthePLMNtothefixednetwork.115.2.3.1GatewayinthePLMN.115.2.3.1.1Initialaddressmessage.115.2.4CallsfromthefixednetworktothePLMN.115.2.4.1Gatewayinthefixednetwork.115.2.4.1.1Initialaddressmessage.115.2.4.2GatewayinthePLMN.125.2.4.2.1Addresscompletemessage.126Exceptionsandclarificationsforsupplementaryservices.126.1ConsiderationsonISDNsupplementaryservices.136.1.1Handlingofnumberparametersrelatedtosupplementaryservices.136.1.1.1CallingLineIdentificationPresentation/Restriction(CLIP/CLIR)supplementaryservices.136.1.1.2ConnectedLineIdentificationPresentation/Restriction(COLP/COLR)supplementaryservices.146.1.1.3TerminalPortability(TP)supplementaryservice.146.1.1.4User-to-UserSignalling(UUS)supplementaryservice.146.1.1.5ClosedUserGroup(CUG)supplementaryservice.146.1.1.6Subaddressing(SUB)supplementaryservice.146.1.1.7MaliciousCallIdentification(MCID)supplementaryservice.146.1.1.8Conferencecall,add-on(CONF)supplementaryservice.146.1.1.9ExplicitCallTransfer(ECT)supplementaryservice.156.1.1.10Diversionsupplementaryservices(CallForwardingUnconditional(CFU)/CallForwardingonBusy(CFB)/CallForwardingonNoReply(CFNR)/CallDeflection(CD)).156.1.1.11CallHold(HOLD)supplementaryservice.156.1.1.12CallWaiting(CW)supplementaryservice.156.1.1.13CompletionofCallstoBusySubscriber(CCBS)supplementaryservice.156.1.1.14CompletionofCallsonNoReply(CCNR)supplementaryservice.156.1.1.15Threeparty(3PTY)supplementaryservice.156.2ConsiderationsonGSMuniquesupplementaryservices.166.2.1CallForwardingonMobileSubscriberNotReachable(CFNRc)supplementaryservice.166.2.2AdviceofCharge(AoC)supplementaryservice.166.2.3CallBarring(CB)supplementaryservice.166.2.4UnstructuredSupplementaryServiceData(USSD).166.2.5CallingNamePresentationsupplementaryservice(CNAP).166.2.6MultipleSubscriberProfile(MSP)supplementaryservice.166.2.7MultiParty(MPTY)supplementaryservice.16SIST EN 302 646-1:2000



ETSIETSIEN302646-1V7.0.2(2000-09)4(GSM09.14version7.0.2Release1998)7MessageTransferPart(MTP)protocolrequirements.16AnnexA(informative):Considerationsonteleservices.17A.1RelationbetweenISDNteleservicesandGSMteleservices.17AnnexB(informative):Considerationsonbearerservices.18AnnexC(informative):MappingofparametersbetweenISUPandMAP.19C.1MappingofparametersfromIAMtoMAP_SEND_ROUTING_INFORMATIONreq.19C.2MappingofparametersfromMAP_SEND_ROUTING_INFORMATIONrsp.toIAM.19AnnexD(informative):Formatsandcodes.20D.1Unrecognizedmessagesandparameters.20D.2Exceptionsandclarificationstoclause3ofITU-TRecommendationQ.763asmodifiedbyEN300356-1.20AnnexE(informative):Examplesofechocontrolprocedures.21E.1OutgoingcallinaMobile-serviceSwitchingCentre(MSC).21E.2IncomingcallintheMSC.21E.3Examplesofechocontrolprocedure.22E.3.1Callfromamobilestationtoamobilestationviathefixednetwork.22E.3.2Callfromamobilestationtofixednetworkwithnoechocontroldevice.22E.3.3Callfromamobilestationtofixednetworkwithechocontroldevice.23E.3.4CallfromfixednetworkwithnoechocontroldevicetoamobilestationroaminginaPLMNofanothercountry.23E.3.5CallfromfixednetworkwithechocontroldevicetoamobilestationroaminginaPLMNofanothercountry.23E.3.6Callfromfixednetworkwithnoechocontroldevicetoamobilestation.24E.3.7Callfromfixednetworkwithechocontroldevicetoamobilestation.24E.3.8CallforwardedbytheVMSC.24E.3.9CallforwardedbytheVMSCtothefixednetworkwithnoechocontroldevice.24E.3.10CallwithnooutgoingechocontroldeviceincludedinaprecedingexchangeforwardedbytheVMSCtothefixednetworkwithnoechocontroldeviceintheterminatingnetwork.TheVMSCknowsthatanoutgoinghalfechocontroldeviceisnotnecessary.25E.3.11CallwithnooutgoingechocontroldeviceincludedinaprecedingexchangeforwardedbytheVMSCtothefixednetworkwithechocontroldeviceintheterminatingnetwork.TheVMSCknowsthatanoutgoinghalfechocontroldeviceisnotnecessary.25E.3.12CallwithnooutgoingechocontroldeviceincludedinaprecedingexchangeforwardedbytheVMSCtothefixednetworkwithnoechocontroldeviceintheterminatingnetwork.TheVMSCknowsthatanoutgoinghalfechocontroldeviceisnecessary.25E.3.13CallwithnooutgoingechocontroldeviceincludedinaprecedingexchangeforwardedbytheVMSCtothefixednetworkwithechocontroldeviceintheterminatingnetwork.TheVMSCknowsthatanoutgoinghalfechocontroldeviceisnecessary.26Bibliography.27History.28SIST EN 302 646-1:2000



ETSIETSIEN302646-1V7.0.2(2000-09)5(GSM09.14version7.0.2Release1998)IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeSignallingProtocolandSwitching(SPS).Thepresentdocumentispart1ofamulti-partdeliverablecoveringtheSignallingSystemNo.7;Digitalcellulartelecommunicationssystem(Phase2);ApplicationofISDNUserPart(ISUP)version3fortheISDN-PublicLandMobileNetwork(PLMN)signallinginterface,asidentifiedbelow:Part1:"Protocolspecification";Part2:"ProtocolImplementationConformanceStatement(PICS)proformaspecification";Part3:"TestSuiteStructureandTestPurposes(TSS&TP)";Part4:"AbstractTestSuite(ATS)andProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecification".NationaltranspositiondatesDateofadoptionofthisEN:22September2000DateoflatestannouncementofthisEN(doa):31December2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30June2001DateofwithdrawalofanyconflictingNationalStandard(dow):30June2001SIST EN 302 646-1:2000



ETSIETSIEN302646-1V7.0.2(2000-09)6(GSM09.14version7.0.2Release1998)1ScopeThepresentdocumentspecifiesthethirdversionoftheIntegratedServicesDigitalNetwork(ISDN)-GlobalSystemforMobilecommunications(GSM)PublicLandMobileNetwork(PLMN)signallinginterface.ThepresentdocumentisapplicabletotheinterconnectionofPLMNandISDN.TheISUPinterfacedefinedisthetrunksignallinginterfacebetweenthePLMNandtheISDN.ItisassumedthattheinterfacebetweenPLMNandISDNcanoccuratanypointinanationalnetwork,providedthattheexchangeinthenationalnetworkhasthisISDN-PLMNsignallinginterface.ThissignallinginterfaceisbasedonISUPversion3(asgiveninEN300356-1[1]toEN300356-20[19]).ThefunctionalityintheGSMsystemisbasedonGSMPhase2+Release1998.NOTE1:SupportofnewfunctionalityintheGSMsystemapplicableforthisinterfacemaybeincludedinsubsequentversionsofthepresentdocumentormaybepublishedasanewEN.Connectiontypes:ThefollowingISUPversion3connectiontypescanbesupported:-speech;-3,1kHzaudio;-64kbit/sunrestricted;-64kbit/sunrestrictedpreferred;-2×64kbit/sunrestricted;-384kbit/sunrestricted;-1536kbit/sunrestricted;-1920kbit/sunrestricted.NOTE2:2×64kbit/s,384kbit/s,1536kbit/s,1920kbit/sunrestrictedand64kbit/sunrestrictedpreferredconnectiontypesarenotsupportedbytheGSMaccess,howevertheconnectiontypesmaybeusedinordertosupportotheraccessmethodsviatheGSMnetwork.Supplementaryservices:ThefollowingISUPversion3supplementaryservicescanbesupported:-CallingLineIdentificationPresentation(CLIP)/CallingLineIdentificationRestriction(CLIR);-ConnectedLineIdentificationPresentation(COLP)/ConnectedLineIdentificationRestriction(COLR);-Terminalportability(TP);-User-to-UserSignalling(UUS);-ClosedUserGroup(CUG);-Subaddressing(SUB);-MaliciousCallIdentification(MCID);-Conferencecall,add-on(CONF);-ExplicitCallTransfer(ECT);SIST EN 302 646-1:2000



ETSIETSIEN302646-1V7.0.2(2000-09)7(GSM09.14version7.0.2Release1998)-CallForwardingUnconditional(CFU)/CallForwardingonBusy(CFB)/CallForwardingonNoReply(CFNR);-CallDeflection(CD);-CallHold(HOLD);-CallWaiting(CW);-CompletionofCallstoBusySubscriber(CCBS);-CompletionofCallsonNoReply(CCNR);-Threeparty(3PTY).Thesupportofsupplementaryservicesonthisinterfacedoesnotnecessarilyimplythatthesupplementaryservicesaresupportedinoneortheotherofthenetworksinterconnected.TheDirectDiallingIn(DDI)supplementaryserviceandMultipleSubscriberNumber(MSN)supplementaryservicehavenoimpactonthisinterface.Thisinterfacecanbeusedwithinnationalnetworks,howevermessagesandparametersthataremarkedfornationaluseinEN300356-1[1]arenotdescribedinthepresentdocument.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• ForthisRelease1998document,referencestoGSMdocumentsareforRelease1998versions(version7.x.y).[1]ETSIEN300356-1(V3.2):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part1:Basicservices[ITU-TRecommendationsQ.761toQ.764(1997),modified]".[2]ETSIEN300356-2(V3.2):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part2:ISDNsupplementaryservices[ITU-TRecommendationQ.730(1997),modified]".[3]ETSIEN300356-3(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part3:CallingLineIdentificationPresentation(CLIP)supplementaryservice[ITU-TRecommendationQ.731,clause3(1993),modified]".[4]ETSIEN300356-4(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part4:CallingLineIdentificationRestriction(CLIR)supplementaryservice[ITU-TRecommendationQ.731,clause4(1993),modified]".[5]ETSIEN300356-5(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part5:ConnectedLineIdentificationPresentation(COLP)supplementaryservice[ITU-TRecommendationQ.731,clause5(1993),modified]".SIST EN 302 646-1:2000



ETSIETSIEN302646-1V7.0.2(2000-09)8(GSM09.14version7.0.2Release1998)[6]ETSIEN300356-6(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part6:ConnectedLineIdentificationRestriction(COLR)supplementaryservice[ITU-TRecommendationQ.731,clause6(1993),modified]".[7]ETSIEN300356-7(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part7:TerminalPortability(TP)supplementaryservice[ITU-TRecommendationQ.733,clause4(1993),modified]".[8]ETSIEN300356-8(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part8:User-to-UserSignalling(UUS)supplementaryservice[ITU-TRecommendationQ.737,clause1(1997),modified]".[9]ETSIEN300356-9(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part9:ClosedUserGroup(CUG)supplementaryservice[ITU-TRecommendationQ.735,clause1(1993),modified]".[10]ETSIEN300356-10(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part10:Subaddressing(SUB)supplementaryservice[ITU-TRecommendationQ.731,clause8(1992),modified]".[11]ETSIEN300356-11(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part11:MaliciousCallIdentification(MCID)supplementaryservice[ITU-TRecommendationQ.731,clause7(1997),modified]".[12]ETSIEN300356-12(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part12:Conferencecall,add-on(CONF)supplementaryservice[ITU-TRecommendationQ.734,clause1(1993),modified]".[13]ETSIEN300356-14(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part14:ExplicitCallTransfer(ECT)supplementaryservice[ITU-TRecommendationQ.732,clause7(1996),modified]".[14]ETSIEN300356-15(V3.2):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part15:Diversionsupplementaryservices[ITU-TRecommendationQ.732,clauses2to5(1997),modified]".[15]ETSIEN300356-16(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part16:CallHold(HOLD)supplementaryservice[ITU-TRecommendationQ.733,clause2(1993),modified]".[16]ETSIEN300356-17(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part17:CallWaiting(CW)supplementaryservice[ITU-TRecommendationQ.733,clause1(1992),modified]".[17]ETSIEN300356-18(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part18:CompletionofCallstoBusySubscriber(CCBS)supplementaryservice[ITU-TRecommendationQ.733,clause3(1997),modified]".[18]ETSIEN300356-19(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part19:Three-Party(3PTY)supplementaryservice[ITU-TRecommendationQ.734,clause2(1996),modified]".[19]ETSIEN300356-20(V3.1):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part20:CompletionofCallsonNoReply(CCNR)supplementaryservice".[20]ITU-TRecommendationQ.763(1993):"SignallingSystemNo.7;ISDNuserpartformatsandcodes".SIST EN 302 646-1:2000



ETSIETSIEN302646-1V7.0.2(2000-09)9(GSM09.14version7.0.2Release1998)[21]GSM03.50:"Digitalcellulartelecommunicationssystem(Phase2+);TransmissionplanningaspectsofthespeechserviceintheGSMPublicLandMobileNetwork(PLMN)system".[22]GSM03.81:"Digitalcellulartelecommunicationssystem(Phase2);Lineidentificationsupplementaryservices;Stage2(GSM03.81version5.2.0Release1996)".[23]GSM03.84:"Digitalcellulartelecommunicationssystem;MultiParty(MPTY)supplementaryservices;Stage2".[24]GSM03.86:"3rdGenerationPartnershipProject;TechnicalSpecificationGroup;GlobalsystemforMobileCommunication(GSM)(Phase2+);AdviceofCharge(AoC)supplementaryservices-Stage2(GSM03.86Release1998)".[25]GSM03.88:"Digitalcellulartelecommunicationssystem(Phase2+);CallBarring(CB)supplementaryservices;Stage2".[26]GSM03.90:"Digitalcellulartelecommunicationssystem;UnstructuredSupplementaryServiceData(USSD)-Stage2".[27]GSM03.93:"3rdGenerationPartnershipProject;TechnicalSpecificationGroup;GlobalsystemforMobileCommunication(GSM)(Phase2+);TechnicalrealizationofCompletionofCallstoBusySubscriber(CCBS);Stage2(GSM03.93Release1998)".[28]GSM09.04:"Digitalcellulartelecommunicationssystem;InterworkingbetweenthePublicLandMobileNetwork(PLMN)andtheCircuitSwitchedPublicDataNetwork(CSPDN)".[29]GSM09.07:"Digitalcellulartelecommunicationssystem(Phase2+);GeneralrequirementsoninterworkingbetweenthePublicLandMobileNetwork(PLMN)andtheIntegratedServicesDigitalNetwork(ISDN)orPublicSwitchedTelephoneNetwork(PSTN)".[30]GSM09.02:"Digitalcellulartelecommunicationssystem(Phase2+);MobileApplicationPart(MAP)specification".[31]ETSIETS300008:"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;MessageTransferPart(MTP)tosupportinternationalinterconnection".[32]ITU-TRecommendationE.164(1997):"Theinternationalpublictelecommunicationnumberingplan".[33]GSM03.96:"3rdGenerationPartnershipProject;TechnicalSpecificationGroup;GlobalsystemforMobileCommunication(GSM)(Phase2+);Nameidentificationsupplementaryservices;Stage2(GSM03.96Release1998)".[34]GSM02.97:"Digitalcellulartelecommunicationssystem(Phase2+);MultipleSubscriberProfile(MSP)Phase1;Servicedescription,Stage1(GSM02.97version5.2.0)".3AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:3PTYThree-PartyACMAddressCompleteMessageAoCAdviceofChargeCBCallBarringCCBSCompletionofCallstoBusySubscriberCCNRCompletionofCallsonNoReplyCDCallDeflectionCFBCallForwardingBusyCFNRCallForwardingNoReplyCFNRcCallForwardingonMobileSubscriberNotReachableCFUCallForwardingUnconditionalCLIPCallingLineIdentificationPresentationCLIRCallingLineIdentificationRestrictionSIST EN 302 646-1:2000



ETSIETSIEN302646-1V7.0.2(2000-09)10(GSM09.14version7.0.2Release1998)COLPConnectedLineIdentificationPresentationCOLRConnectedLineIdentificationRestrictionCONFConferencecallingCPGCallProgressmessageCUGClosedUserGroupCWCallWaitingDDIDirectDiallingInECTExplicitCallTransferGMSCGatewayMSCGSMGlobalSystemforMobilecommunicationsHLCHighLayerCompatibilityHLRHomeLocationRegisterHOLDCallHoldHPLMNHomePublicLandMobileNetworkIAMInitialAddressMessageISDNIntegratedServicesDigitalNetworkISUPISDNUserPartMAPMobileApplicationPartMCIDMaliciousCallIdentificationMPTYMultiPartyMSMobileStationMSCMobile-serviceSwitchingCentreMSISDNMobileStationISDNnumberMSNMultipleSubscriberNumberMSRNMobileStationRoamingNumberMTPMessageTransferPartNINetworkIndicatorPLMNPublicLandMobileNetworkSUBSubaddressingTPTerminalPortabilityUSSDUnstructuredSupplementaryServiceDataUUSUser-to-UserSignallingVLRVisitorLocationRegisterVMSCVisitedMSC4GeneralprinciplesThegatewayexchangesinbothnetworksbehavelikeinternationalincomingoroutgoinggatewaysintherelevantcasesasdescribedinEN300356-1[1]toEN300356-20[19],withtheexceptionsindicatedwithinthepresentdocument.5Exceptionsandclarificationsforbasiccall5.1FormatsandcodesTheformatsandcodesspecifiedinEN300356-1[1]withtheexceptionsandclarificationsdescribedintableD.1.5.2BasiccallsignallingproceduresThebasiccallproceduresofEN300356-1[1]applywiththefollowingexceptionsandclarifications.5.2.1SignallingproceduresforconnectiontypeallowingfallbackThegatewayintheprecedingnetwork(PLMNorISDN)shallperformfallbackaccordingtotheproceduresdefinedinEN300356-1[1]whenthesucceedingnetworkdoesnotsupportfallback.SIST EN 302 646-1:2000



ETSIETSIEN302646-1V7.0.2(2000-09)11(GSM09.14version7.0.2Release1998)5.2.2EchocontrolprocedureTheenhancedechocontrolprocedureaccordingtoEN300356-1[1]isnotsupported.InsteadthesimpleechocontrolproceduredescribedinEN300356-1[1]isapplicable.AccordingtoGSM03.50[21],forspeechand3,1kHzaudioconnectiontypesanacousticechocontrolshallbeprovidedintheMS.ThePLMNmayprovideelectricechocontrol.Echocontrolproceduresarenotapplicableto64kbit/s,2×64kbit/s,384kbit/s,1536kbit/sor1920kbit/sunrestrictedconnectiontypes.ExamplesofechocontrolproceduresareshowninannexE.5.2.3CallsfromthePLMNtothefixednetwork5.2.3.1GatewayinthePLMNTheInitialAddressMessage(IAM)sentbythegatewayinthePLMNshallbecodedtakingintoaccountthefollowingexceptionsandclarifications.5.2.3.1.1InitialaddressmessageCalledpartynumberThecalledpartynumberparametermaycontainaMobileStationRoamingNumber(MSRN).-Internalnetworknumberindicator:0iftheMSRNisincluded;1otherwise.Theuseoftheinternalnetworknumberindicatorisanoption.UserserviceinformationTheIAMshallalwaysincludeauserserviceinformationparameterforcallstothefixednetworkwhentheISDNaccessindicatorissettoISDN.5.2.4CallsfromthefixednetworktothePLMN5.2.4.1Gatewayinthefixednetwork5.2.4.1.1InitialaddressmessageCalledpartynumberThecalledpartynumberparametercontainstheMSISDNorMSRN:-Internalnetworknumberindicator:0ifMSRNisincluded;1ifMSISDNisincluded.NOTE:Thevalueoftheinternalnetworknumberindicatorissetintheexchangehavingtherelevantknowledge,andispassedtransparentlythroughthefixednetwork.Duetointerworkingwitholdsignallingsystems,anMSRNmaybereceivedwiththeinternalnetworknumberindicatorsetto"0"or"1".Theuseoftheinternalnetworknumberindicatorisanoption.SIST EN 302 646-1:2000



ETSIETSIEN302646-1V7.0.2(2000-09)12(GSM09.14version7.0.2Release1998)5.2.4.2GatewayinthePLMN5.2.4.2.1AddresscompletemessageSignificantdelaysmaybeincurredwhileinterrogatinglocationregistersandwhilepagingtheterminatingMS.Duetothepossibledelaysinvolvedinsettingupmobilecalls,thePLMNneedstotakespecialactiontoensurethattimerT7(awaitingaddresscompletetimer)doesnotexpire.Forthisreason,wheneveracallentersthePLMN,thePLMNshallrunatimer,thePLMN/ISDNearlyAddressCompleteMessage(ACM)timer(value5to20seconds).Thetimeristobestartedafterreceivingthecompletenumber.Ifthetimerexpires,anaddresscompletemessageissent.ThePLMNshallstopthetimeronsendingafirstbackwardmessage(addresscompletemessageorconnectmessage).TheACMshallcontainthebackwardcallindicatorssetto"0"exceptfor:Backwardcallindicators-Chargeindicator:00(noindication);01(nocharge);or10(charge).NOTE:Thesettingofthechargeindicatorisnetworkspecific.-ISDNaccessindicator:1(ISDN)(preferredvalue,seetableD.1).-Echocontroldeviceindicator:setaccordingtoechocontrolproceduredescribedinannexE.-ISDNuserpartindicator:1(ISDNuserpartusedalltheway).OncethePLMNgatewayhassentbackwardsoneACMmessageforacall(eitherbecauseithasinternallygeneratedtheACMmessageorbecauseithastransitedanACMmessagereceivedfromanothernode)itshallnotsendfurtherACMm
...