ETSI EN 300 356-32 V3.0.4 (2000-09)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 3 for the international interface; Part 32: Test Suite Structure and Test Purposes (TSS&TP) specification for basic services33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 300 356-32 Version 3.0.4SIST EN 300 356-32 V3.0.4:2005en01-april-2005SIST EN 300 356-32 V3.0.4:2005SLOVENSKI
STANDARD
ETSIEN300356-32V3.0.4(2000-09)EuropeanStandard(Telecommunicationsseries)IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part32:TestSuiteStructureandTestPurposes(TSS&TP)specificationforbasicservicesSIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)2ReferenceREN/SPS-01037-2KeywordsISDN,ISUP,SS7,testing,TSS&TP,basicETSI650RoutedesLuciolesF-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 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)3ContentsIntellectualPropertyRights.4Foreword.41Scope.62References.63Definitionsandabbreviations.73.1Definitions.73.2Abbreviations.84Implementationundertestandtestmethods.94.1Identificationofthesystemandimplementationundertest.94.2ATMandtestingconfigurationforISUPv3.104.2.1Intermediateexchanges.114.2.2Localexchanges.124.2.3Master-slaveaspectsinthetestconfiguration.145ConventionsusedwithintheATS.155.1Testsuiteparameters,constantsandvariables.155.2Testcasevariables.155.3ASPconstraints.155.4Timers.155.5Testsuiteoperations.155.6Aliases.155.7Testcaseandstepidentifiers.165.8Constraints.165.9Dynamicbehaviourpart.165.10Pre-testconditions.176TestSuiteStructure(TSS).187Testpurposes(TP).207.1Introduction.207.1.1Testpurpose(TP)namingconvention.207.1.2Sourceoftestpurposedefinition.217.1.3Testpurposestructure.217.2Testpurposesforthebasiccall.227.2.1CSSV:Circuitsupervisionandsignallingsupervision.227.2.2NCS:Normalcallsetupordinaryspeechcalls.557.2.3NCRNormalcallrelease.637.2.4UCS:Unsuccessfulcallsetup.657.2.5AS:Abnormalsituations.667.2.6SCS:Specialcallsetup.697.2.7BS:Bearerservices.767.2.8CUF:Congestionanduserflowcontrol.837.2.9EC:Echocontrol.847.2.10TAR:Temporaryalternaterouting.907.2.11HOP:HopCounterProcedure.917.2.12CALLCOL:CallCollectRequestProcedure.927.2.13Nx64k:Nx64kbitconnectiontype.938Testcoverage.1048.1Generalremarks.104Bibliography.105History.106SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)4IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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)hasbeenproducedbyETSITechnicalCommitteeServicesandProtocolsforAdvancedNetworks(SPAN).Thepresentdocumentispart32ofamulti-partstandardcoveringtheISDNUserPart(ISUP)version3fortheinternationalinterface,asidentifiedbelow:Part1:"Basicservices";Part2:"ISDNsupplementaryservices";Part3:"CallingLineIdentificationPresentation(CLIP)supplementaryservice";Part4:"CallingLineIdentificationRestriction(CLIR)supplementaryservice";Part5:"ConnectedLineIdentificationPresentation(COLP)supplementaryservice";Part6:"ConnectedLineIdentificationRestriction(COLR)supplementaryservice";Part7:"TerminalPortability(TP)supplementaryservice";Part8:"User-to-UserSignalling(UUS)supplementaryservice";Part9:"ClosedUserGroup(CUG)supplementaryservice";Part10:"Subaddressing(SUB)supplementaryservice";Part11:"MaliciousCallIdentification(MCID)supplementaryservice";Part12:"ConferenceCall,add-on(CONF)supplementaryservice";Part14:"ExplicitCallTransfer(ECT)supplementaryservice";Part15:"Diversionsupplementaryservices";Part16:"CallHold(HOLD)supplementaryservice";Part17:"CallWaiting(CW)supplementaryservice";Part18:"CompletionofCallstoBusySubscriber(CCBS)supplementaryservice";Part19:"Threeparty(3PTY)supplementaryservice";Part20:"CompletionofCallsonNoReply(CCNR)supplementaryservice";Part31:"ProtocolImplementationConformanceStatement(PICS)proformaspecificationforbasicservices";Part32:"TestSuiteStructureandTestPurposes(TSS&TP)specificationforbasicservices";SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)5Part33:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforbasicservices";Part34:"ProtocolImplementationConformanceStatement(PICS)proformaspecificationforsupplementaryservices";Part35:"TestSuiteStructureandTestPurposes(TSS&TP)specificationforsupplementaryservices";Part36:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforsupplementaryservices".NOTE:Part13and21to30havenotbeenissued.NationaltranspositiondatesDateofadoptionofthisEN:21July2000DateoflatestannouncementofthisEN(doa):31October2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30April2001DateofwithdrawalofanyconflictingNationalStandard(dow):30April2001SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)61ScopeThepresentdocumentcontainsthevalidation(conformance)testspecificationforISUP'97basiccallcontrolandsignallingproceduresdefinedinITU-TRecommendationQ.764[13]asendorsedbyEN300356-1[2].ThepresentdocumentappliesonlytoexchangeshavingimplementedtheISUPv3protocolspecification.ItisapplicableforvalidationtestingofalltypesofexchangesasdefinedintheISUPv3protocolspecification.NotethatthecompatibilitytestsarecoveredbyITU-TRecommendationQ.784.1[10].Themaintextpartofthepresentdocumentpresentstherequirementsregardingthechosentestmethod,conventionsusedwithintheATS,thetestsuitestructureandthetestpurposes(TSS&TP)forISUPv3basiccallcontrolprocedures.EN300356-31[3]presentstheProtocolImplementationConformanceStatements(PICS)ISUPv3basiccallcontrolproceduresandEN300356-33[4]presentstheactualATS,whichisdeliveredinelectronicformonly,andtheProtocolConformanceTestReport(PCTR).2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ETSIEN300008-1(V1.3):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;MessageTransferPart(MTP)tosupportinternationalinterconnection;Part1:Protocolspecification[ITU-TRecommendationsQ.701,Q.702,Q.703,Q.704,Q.705,Q.706,Q.707andQ.708modified]".[2]ETSIEN300356-1(V3.2):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part1:Basicservices[ITU-TRecommendationsQ.761toQ.764(1997),modified]".[3]ETSIEN300356-31(V3.0):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part31:ProtocolImplementationConformanceStatement(PICS)proformaspecificationforbasicservices".[4]ETSIEN300356-33(V3.0):"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;ISDNUserPart(ISUP)version3fortheinternationalinterface;Part33:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforbasicservices".[5]ISO/IEC9646-1:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part1:Generalconcepts".[6]ISO/IEC9646-3:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part3:TheTreeandTabularCombinedNotation(TTCN)".[7]ISO/IEC9646-7:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part7:ImplementationConformanceStatements".[8]ITU-TRecommendationE.164:"Theinternationalpublictelecommunicationnumberingplan".[9]ITU-TRecommendationQ.767:"ApplicationoftheISDNuserpartofCCITTsignallingsystemNo.7forinternationalISDNinterconnections".SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)7[10]ITU-TRecommendationQ.784.1:"ISUPbasiccalltestspecification:ValidationandcompatibilityforISUP'92andQ.767protocols".[11]ITU-TRecommendationQ.784.2(1997):"ISUPbasiccalltestspecification:AbstracttestsuiteforISUP'92basiccallcontrolprocedures".[12]ITU-TRecommendationQ.784.3:"ISUP'97Basiccallcontrolprocedures,testsuitestructureandtestpurposes(TSS&TP)".[13]ITU-TRecommendationQ.764:"SignalingSystemNo.7-ISDNuserpartsignalingprocedures".[14]ITU-TRecommendationQ.762:"SignalingSystemNo.7-ISDNuserpartgeneralfunctionsofmessagesandsignals".[15]ITU-TRecommendationQ.707:"Testingandmaintenance".[16]ITU-TRecommendationQ.763:"SignallingSystemNo.7-ISDNuserpartformatandcodes".[17]ITU-TRecommendationQ.724:"SpecificationsofSignallingSystemNo.7-Telephoneuserpart".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:-termsdefinedinISDNUserPart(ISUP)referencespecification;-termsdefinedinISO/IEC9646-1[5],ISO/IEC9646-3[6]andinISO/IEC9646-7[7].Inparticular,thefollowingtermsapply:AbstractTestCase(ATC):completeandindependentspecificationoftheactionsrequiredtoachieveaspecifictestpurpose,definedatthelevelofabstractionofaparticularAbstractTestMethod,startinginastabletestingstateandendinginastabletestingstate(seeISO/IEC9646-1[5],subclause3.3.3)AbstractTestMethod(ATM):descriptionofhowanIUTistobetested,givenatanappropriatelevelofabstractiontomakethedescriptionindependentofanyparticularrealizationofaMeansofTesting,butwithenoughdetailtoenableabstracttestcasestobespecifiedforthismethod(seeISO/IEC9646-1[5],subclause3.3.5)AbstractTestSuite(ATS):testsuitecomposedofabstracttestcases(seeISO/IEC9646-1[5],subclause3.3.6)ImplementationUnderTest(IUT):implementationofoneormoreOSIprotocolsinanadjacentuser/providerrelationship,beingpartofarealopensystemwhichistobestudiedbytesting(seeISO/IEC9646-1[5],subclause3.3.43)ISDNnumber:numberconformingtothenumberingandstructurespecifiedinITU-TRecommendationE.164[8]MeansofTesting(MOT):combinationofequipmentandproceduresthatcanperformthederivation,selection,parameterizationandexecutionoftestcases,inconformancewithareferencestandardizedATS,andcanproduceaconformancelog(seeISO/IEC9646-1[5],subclause3.3.54)PICSproforma:document,intheformofaquestionnaire,whichwhencompletedforanimplementationorsystembecomesthePICSPIXITproforma:document,intheformofaquestionnaire,whichwhencompletedfortheIUTbecomesthePIXITPointofControlandObservation(PCO):pointwithinatestingenvironmentwheretheoccurrenceoftesteventsistobecontrolledandobserved,asdefinedinanAbstractTestMethod(seeISO/IEC9646-1[5],subclause3.3.64)Pre-testcondition:settingorstateintheIUTwhichcannotbeachievedbyprovidingstimulusfromthetestenvironmentSIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)8ProtocolImplementationConformanceStatement(PICS):statementmadebythesupplierofaprotocolclaimedtoconformtoagivenspecification,statingwhichcapabilitieshavebeenimplemented(seeISO/IEC9646-1[5],subclause3.3.39andsubclause3.3.80)ProtocolImplementationeXtraInformationforTesting(PIXIT):statementmadebyasupplierorimplementerofanIUT(protocol)whichcontainsorreferencesalloftheinformationrelatedtotheIUTanditstestingenvironment,whichwillenablethetestlaboratorytorunanappropriatetestsuiteagainsttheIUT(seeISO/IEC9646-1[5],subclause3.3.41andsubclause3.3.81)SystemUnderTest(SUT):realopensysteminwhichtheIUTresides(see[ISO/IEC9646-1[5],subclause3.3.103)User:accessprotocolentityattheUsersideoftheuser-networkinterfacewhereaTreferencepointorcoincidentSandTreferencepointapplies3.2AbbreviationsTheISUPmessageacronymscanbefoundintable2ofITU-TRecommendationQ.762[14]asendorsedbyEN300356-1[2].Forthepurposesofthepresentdocument,thefollowingabbreviationsapply:ACHAccesssignallingPCO-(D-channel)APHAccessphysicalcircuitPCO-(B-channel)ASPAbstractServicePrimitiveATCAbstractTestCaseATMAbstractTestMethodATSAbstractTestSuiteCABPCOforABcircuitsCACPCOforACcircuitsCICCircuitIdentificationCodeCntrlEControllingExchangeDLEDestinationLocalExchangeDSS1DigitalSubscriberSystemNo.1ICSImplementationConformanceStatementIncIEIncomingInternationalExchangeIntermEIntermediateExchangeISCInternationalSwitchingCentreISDNIntegratedServicesDigitalNetworkISUPISDNUserPartIUTImplementationUnderTestITEInternationalTransitExchangeLABPCOforsignallinglinkABLACPCOforsignallinglinkACLAPDLinkAccessProtocolfortheD-channelLTLowerTesterMOTMeansOfTestingMMIManMachineInterfaceMNTMaintenancePCOMTCMainTestComponentMTPMessageTransferPartNNINetwork-networkinterfaceNTENationalTransitExchangeOLEOriginatingLocalExchangeOPROperatorPCOOutIEOutgoingInternationalExchangePCOPointofControlandObservationPCTParallelTestComponentPCTRProtocolConformanceTestReportPDUProtocolDataUnitPICSProtocolImplementationConformanceStatementPIXITProtocolImplementationeXtraInformationforTestingPTCParallelTestComponentSIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)9SCCPSignallingConnectionControlPartSCSSystemConformanceStatementSPSignallingPointSS7SignallingSystemN°7SUTSystemUnderTestTPTestPurposeTypeATypeAexchangeTypeBTypeBexchangeTCPTestCo-ordinationProceduresTSSTestSuiteStructureTSS&TPTestSuiteStructureandTestPurposesTTCNTreeandTabularCombinedNotationUNIUser-networkinterfaceUTUpperTester4Implementationundertestandtestmethods4.1IdentificationofthesystemandimplementationundertestThesystemundertest(SUT)isanexchange.SUTExchangeMMIcapabilitiesandfunctionsISUPAccessISUPISUPv3IUTFigure1:ExchangeasSUTTheimplementationundertest(IUT)istheISUPv3implementationinthisexchange,asshowninfigure1.TheaimoftheISUPimplementationistoassurecapabilitiesandfunctionsforcircuitandsignallingsupervisionononehandandforcallhandlingontheother.CircuitsupervisionisdonemainlythroughtheMMI(manmachineinterface)oftheexchange.TheMMIinterfaceisimplementationdependentandthusnotstandardized.TheeffectsofsignallingproceduresoftheISDNUserPartcanbeobservedontheNNI(network-networkinterface),onthecircuitscontrolledbytheISUP.TheISUPsignallingprotocolcanbeobservedontheSS7linkontheNNI.TheISUPimplementationwillinsomeexchangeshavetointerworkwiththeaccesssignallingsystemontheUNI(user-networkinterface)andinvolvecallhandlinginordertoestablishend-to-endconnections.FromtheISUPreferencestandardseveraltypesofexchanges(orroles)canbeidentifiedaspresentedinfigure2.SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)10AccessAccessintermediatelocallocalTransitNTEGatewayOutIETransitITEGatewayIncIEnationalnetworkinternationalnetworknationalnetworkDLEOLEFigure2:RolesofexchangesTheexchangescanbedividedintwomaingroupsaccordingtotheirfunctionality:localexchanges,wherecallsoriginateandterminate,andintermediateexchanges,withtransitfunctionality.Localexchangesarenational,i.e.belongtoanationalnetwork.Intermediateexchangesarenationalorinternational.Theinternationalintermediateexchangeswhichpermitaccesstotheinternationalnetworkarethegatewayexchanges(incomingandoutgoing),alsocalledISCs-internationalswitchingcentres.Therolesoftheexchangesaresummarizedintable1:Table1:RolesofexchangesLocalIntermediateExchangeExchangeNationalInternationalOriginatingLocalExchangeTypeAOLETransitExchangeTypeBNTEITEIncoming/GatewayExchangeTypeAIncIEOutgoing/GatewayExchangeTypeAOutIEDestinationLocalExchangeTypeADLE4.2ATMandtestingconfigurationforISUPv3TheAbstractTestMethod(ATM)chosenfortheISUPv3testingspecificationisthedistributedmultipartytestmethod.TheATMisdefinedatanappropriatelevelofabstractionsothatthetestcasesmaybespecifiedappropriately,withoutaddingrestrictionstotheimplementationundertest.Thetestingarchitecturesaredescribedinthefollowingsubclauses.TheATSiswritteninconcurrentTTCN.SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)114.2.1IntermediateexchangesTheconfigurationproposedfortestingintermediateexchangesisshowninfigure3.InordertotesttheprotocolandfunctionalityoftransitandgatewayexchangesoneneedstoconsidertheincomingandoutgoingsideoftheSUT.SPASPBIUTTCPMNTCABLABLTISUPlinkCircuitsTCPLTLTPhysicalaspectsCircuitsISUPlinkSPCCACLACUTMaintenanceNetworkserviceproviderNetworkserviceproviderLTFigure3:ISUPtestmethodforintermediateexchangesTheIUTisobservedandcontrolledfromtwoISUPlinkswithassociatedcircuits.Thepointsofcontrolandobservation(PCO)arelabelledLABandCABononeside,andLACandCAContheother.TheLABandLACPCOsareusedbythelowertesters(LT)forcontrollingtheISUPsignallinglink,whereastheCABandCACPCOsareusedbythelowertestersforobservingcircuitrelatedevents,suchasconnectivity,echocontrolcheck,alertingtone,etc.TheISUPPDUstobesentandobservedontheLABPCOsideallowforPDUconstraintstobespecifiedandcodeddowntothebit-level.TheMNTPCOisusedbytheuppertester(UT)tocontrolandobservethemaintenancefunctionsoftheexchange.TheunderlyingnetworkserviceprovideristheMessageTransferPart(MTP)protocolasspecifiedinEN300008-1[1]andITU-TRecommendationsQ.707[15]asendorsedbyEN300008-1[1].SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)12Figure4showstheactualusedconfigurationforintermediateexchanges,withamaintestingcomponent(MTC),responsiblefortheA-Binterfaceandaslaveparalleltestingcomponent(PTC),responsiblefortheC-Ainterface.ThemaintenancePCO(MNT)andtheoperatorPCO(OPR),neededforalimitednumberoftestcasesareintegratedintheMTC,forsimplifyingreasons.Thetestco-ordinationprocedures(TCP)allowforcommunicationbetweenthetesters.Thetestcomponentsaremostlyimplicitlyco-ordinated(asynchronously);theTCPsareonlyusedwhenitisnecessarytoobtaintheverdictfromtheparalleltestcomponent.TCPPTCMTCMaintenanceoperatorISUPsignalling,circuitsMNTOPRISUPsignalling,circuitsIUTSPCSPBCABLABCACLACSPANetworkserviceproviderNetworkserviceproviderFigure4:ISUPtestconfigurationforintermediateexchanges4.2.2LocalexchangesWhentestingalocalexchangeasspecifiedinthereferencestandard,itisdifficult,ifnotimpossible,toobserveonlyISUPPDUs,iffunctionalitysuchasconnectivity,tonesandannouncementsetc.associatedwithprotocoleventsistobeconsideredandusedtoassignverdicts.Thereferencestandardoftenreferstoactionsoreventsinitiatedbyortobeobservedbythecallingorcalleduser.APointofControlofObservationfromISUP(IUT)totheaccesssideisneeded,e.g.forstimulatingthelocalexchangetooriginateacall(sendanIAM).AnotherPCOisneededtocheckconnectivityortochecktonesgeneratedetc.bythelocalexchange.ThereisnoexposedinterfacefromISUP(theIUT)towardstheaccessside.Forpracticaltestingpurposesthenaturalchoiceistheaccessinterface.Itisthereforereasonabletomakeuseoftheaccessinterface(e.g.theuseraccessinterfaceDSS1)asaPCOandtouseexistingnamingconventionsfortheabstractserviceprimitives(ASPs)tobeusedonthisPCO.SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)13Figure5presentsamultipartytestingconfigurationforlocalexchanges.InthisfigureeachtesterhasasinglePCO.ThePCOfortheaccessusestheunderlyingaccessserviceprovider(e.g.LAPD,incaseofDSS1)forobservingaccesseventsandstimulatingtheISUPviatheaccess.TheISUPimplementation(IUT)cannotbetestedwithoutinvolvingtheuser-networkinterface(UNI).SPASPBIUTTCPMNTCABLABTCPACHAccessserviceproviderPhysicalaspectsAPHUNILTAnnouncementstones,etc.UTMaintenanceLTCallhandlingLTCircuitsLTISUPlinkNetworkserviceproviderFigure5:ISUPtestmethodfororiginating/destinationexchangesOntherightsidetherearetwoPCOsasinthetestconfigurationpresentedintheprevioussubclause.TheLABPCOisusedbytheLTcontrollingtheISUPsignallinglink,whereastheCABPCOisusedbyanotherLTcontrollingthetrafficchannels(forobservingcircuitrelatedevents,suchasconnectivity,echocontrolcheck,alertingtone,etc.).TheISUPPDUstobesentandobservedontheLABPCOsideallowforPDUconstraintstobespecifiedandcodeddowntothebitlevel.TheMNTPCOisusedbytheUpperTestertocontrolandobservethemaintenancefunctionsoftheexchange.OntheaccesssidetherearetwoPCOsandtwoLTssimilartotheonesonnetworkside.TheACHPCOisusedtoobserveandcontroltheCallHandlingevents,whereastheAPHisusedtocontrolandobservephysicalaspects(e.g.tonesandannouncements).TheaccessPDUstobesentandobservedontheACHPCOarechosenatanappropriatelevelofabstraction.FortheaccessASPsDSS1-like,primitivenameshavebeenused,whereasaccessPDUconstraintshavenotbeencodedtothebitlevel.Theaccessaspectscannotbeleftoutforlocalexchanges,wideninginthisrespecttosomeextentthescopeoftheISUPtesting.SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)14Figure6showstheactualusedconfigurationforlocalexchanges,withamaster-testingcomponent(MTC),responsiblefortheA-Binterfaceandaslaveparalleltestingcomponent(PTC),responsiblefortheUNIaccessinterface.ThemaintenancePCOisintegratedintheMTC,forsimplifyingreasons.CABLABTCPPTCIUTMNTMaintenanceSPBMTCACHCallhandlingAPHUNISPAAccessserviceproviderNetworkserviceproviderISUPsignalling,circuitsFigure6:ISUPtestconfigurationforlocalexchanges4.2.3Master-slaveaspectsinthetestconfigurationFigures4and6showthelogicaltestcomponentsoftheadoptedtestconfiguration.ThemaintestcomponentislocatedontherightsideoftheIUT,whereasontheleftsidetherearedifferentparalleltestcomponents:ISUP(seefigure4)andaccess(seefigure6).TheATSiswrittensothattheappropriateconfigurationischosendependingontheexchange'sroletobetested.TherightsidemaintestcomponentmaybeinternationalornationalISUPandisconfigurablesothatanytwoofthesemayberunbasedontheanswersgiventoPIXITquestions.Theleftsideparalleltestcomponentmaybeofanykind:itmaybeinternationalornationalISUP,anaccesssignallingsystemoranon-ISUPUserpart.AttestexecutionexactlyoneoftheseconfigurationswillbechosenbasedontheinformationprovidedinthePICSandPIXIT.ForthegatewayexchangesitisassumedbydefaultthatthecallissetupfromtheleftPTCtotherightMTC.Insometestcasesthecallsetupisdoneinthereversedirection.ThesetestcasesaremarkedintheATSwiththeconfigurationfieldsetto"reversed".TheyhavetobeexecutedwithadifferentsetofPIXITsettings.Themessageflowinthetestcasesisdesignedinsuchawaythattheverdictisassignedbasedonobservingthebehaviourontherightside.Theleftsidewillinthiscasemainlyactasaslavestimulus/acceptor.Thereare,however,testcaseswheretheexpectedbehaviourofbothsidesisneededtoassigntheverdict.AnexampleofsuchatestcaseisthereleaseonbothsidesafterT7(waitingforACM)expiry,wherethefinalverdicthastobebasedontheverdictsassignedonboththeABandtheACinterfaces.SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)155ConventionsusedwithintheATSAbbreviationsforISUPmessagesandparametersareusedconsistentlythroughoutthedocument.AbbreviationsforthesignallinginformationofISUPasdefinedinITU-TRecommendationQ.762[14]asendorsedinEN300356-1[2]areconsistentlyusedwithintheATSandareusefulforunderstandingand/ormaintainingthecodingdetaillevel.5.1Testsuiteparameters,constantsandvariablesMosttestsuiteparametersarenamedusingthepattern:TSP_Xxx.Mosttestsuitevariablesarenamedusingthepattern:TSV_Xxx.Alltestsuiteconstantsarenamedusingthepattern:TSC_Xxx.5.2TestcasevariablesMosttestcasevariablesarenamedusingthepattern:TCV_Xxx.5.3ASPconstraintsThenamingschemeforASPconstraintsis:PDU_XY_more_specific.WherePDUindicatesthePDUtypeincluded,XYindicatesthedirectionandmorespecific(ifany)describestheconstraintwithabbreviatednamingconvention.EXAMPLE:IAM_BA_PDCindicatesanIAMsentfromSPBtoSPA,withapropagationdelaycounter.5.4TimersAlltimersarenamedusingthepattern:TN[_minor_max].EXAMPLE:T7,T7_min,T7_max.5.5TestsuiteoperationsMostnamesfortestsuiteoperationsfollowthescheme:TSO_TestSuiteOperationName.TheTSOfunctionsarespecifiedusingthesyntaxofCprogramminglanguage.5.6AliasesAliasesareextensivelyusedinsteadofcumbersomenamesforASPprimitives(likeMTPTRANSFER_IND).Theyarenamedusingthescheme:S_XXXforthesendingofanISUPmessageXXXwhichresolvestotheMTPTRANSFER_REQprimitive.R_XXXforthereceiptofanISUPmessageXXXwhichisresolvedtotheMTPTRANSFER_INDprimitive.SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)165.7TestcaseandstepidentifiersThegeneralnamingconventionforthetestcasesis:ISB_{X}_n_n_n._{a}_{n_a}.WhereXiseither:V-validstimulus,I-inopportunestimulusorS-syntacticallyinvalidstimulus;nisaoneortwodigittestcasenumberalignedwithITU-TRecommendationQ.784.1[10]andaisalowercaselettertodistinguishbetweentestsincaseofvariants.Thelastnumberpluslowercaseletterissometimesusedtofurtherdistinguishbetweentestcases.Thegeneralnamingconventionforthedispatcherteststepsis:S_n_n_n.Wherethen-sarethesameasthetestcasetowhichtheyrelate.Thedispatched"slaves"arenamedasfollows:ISUPslave:I_n_n_n.accessslave:A_n_n_n.non-ISUPslave:T_n_n_n.Somegenericstepswithappropriatenames,e.g.tocompletethecall-setup(+S_ACM_etc_BA,+R_ACM_etc_AC)arealsoused.5.8ConstraintsTheconstraintsvisibleonthetestcaselevelareallASPconstraints.TheASPsarechainedtoPDUconstraintseverytimeanISUPmessageisinvolved.ThisallowsforahigherlevelofabstractiononthetestcaselevelandhidestheinformationintheASPconstraintpart.InthecaseofaccessPDUs,nofurtherPDUconstraintsaredefined.GenerallyderivedPDUconstraintsareavoidedforsimplicityreasons.5.9DynamicbehaviourpartThegeneralschemeofrunningatestcasecanbedescribedbrieflyasfollows:Firstly,thecontrolisgiventothemaintestcomponent,whichstartsexecuting.ThismaintestcomponentcontrolsandobservestheIUTontheABsignallinglink.Secondlyafterpossiblyinitializingsomedatathemaintestcomponentcreatesthecorrespondingparalleltestcomponent.Thiscomponentistheslaveprocessanditislocatedinaseparateteststep.Itisdispatchedusingaparameterderivedfromtheroleoftheexchangetobetested.Foreachtestcaseexactlyoneconcurrent"slave"paralleltestcomponent,eitherISUP,oraccess,ornon-ISUPiscreated.ForexampleifthetestconfigurationrequiresanISUPtesterontheleftside,thentheISUPparalleltestcomponentiscreated,andsoon.Themain(right)andtheparallel(left)testcomponentswillthenco-operate,mostofthetimeasynchronouslydrivenbythereceivedmessages,untilthetestpurposeisachievedandtheverdictisset.Thebehaviourdescriptioniskeptonanabstractlevel,hidingwheneveritispossibleprogrammingdetailsintheunderlyingteststeps.Teststepsareusedwheneverthissavescodewithoutdecreasingthereadabilityofthetestcase.Oftenfunctionallyrelatedteststepsaregroupedtogetherusinglocaltrees.Thecommentfieldsareextensivelyused.Themessagesequencechartforthechosentestingconfigurationisprovidedattestcaseleveltoquicklygiveanoverviewoftheexpectedbehaviour.Foroptimalreadabilityanon-proportionalfontisusedforprintingthearrowdiagrams.SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)175.10Pre-testconditionsForeachtestitisassumedthatthecircuitsareunblockedfrombothsidesandidle.Someparticulartestcasesneedspecialpre-testconditions.Thesearepresentedintable2.Table2:Specialpre-testconditionsPre-testconditionTestcaseArrangethedataintheIUTsuchthatpassonisnotpossible.IBC_V_1_7_1_4IBC_V_1_7_1_5IBC_V_1_7_2_5IBC_V_1_7_2_6_aIBC_V_1_7_2_6_bIBC_V_1_7_2_7_aIBC_V_1_7_2_7_bArrangethedataintheIUTsuchthattheunknownparameterwillbepassedonbytheIUT.IBC_I_1_7_2_9_aArrangethedataintheIUTsuchthattheunknownparameterwillbediscardedbytheIUT.IBC_I_1_7_2_9_bArrangethedataintheIUTsuchthatthecallisswitchedviasatelliteconnection.IBC_V_2_3_4_aIBC_V_2_3_4_bIBC_V_2_3_4_cArrangethedataintheIUTsuchthatanetworkinitiatedSuspendmessagecanbetriggeredbysignallingpointC(SPC).IBC_V_3_5_bArrangethedataintheIUTsuchthatitisunabletoreturnthecircuittotheidleconditioninresponsetoareleasemessage.IBC_V_5_1ArrangethedataintheIUTsuchthatacontinuitycheckisrequiredontheoutgoingcircuit.IBC_V_6_1_1_aArrangethedataintheIUTsuchthatacontinuitycheckisappliedonthiscall.IBC_V_6_1_3_aArrangethedataintheIUTsuchthatacontinuitycheckisrequiredontheoutgoingcircuit.IBC_V_6_1_4_aIBC_V_6_1_5IBC_V_6_2_4ArrangethedataintheIUTsuchthatfallbackoccursintheIUT.IBC_V_6_6_3_aIBC_V_6_6_3_bArrangethedataintheIUTsuchthatthereareenoughcircuitsavailableforthecall.IBC_V_7_3_7IBC_V_7_3_8IBC_V_7_3_9ArrangethedataintheIUTsuchthattheISDNUserPartofsignallingpointB(SPB)becomesunavailableintheIUT.IBC_V_8_2_2IBC_V_8_2_3ArrangethedataintheIUTsuchthatthecallisroutedoveraroutenotrequiringechocontroldevices.IBC_V_9_1_2SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)186TestSuiteStructure(TSS)ISUP_v3_Basic_Call:CSSVCSRCBCCCTCCGBURUSIMCBURUMSPANCSPVBWCSFDCASBDSCSRMNCRPDDPUCSASTRCDCIneveryleaf:SCSCCCVARAIDSSSAOSGMFBBSUNRAUDMCTCUFACCIACECSITARENHOPCALLNx64kFigure7:TestsuitestructureSIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)19Thetestsuitestructurenamingconventionsare:CSSVCircuitsupervisionandsignallingsupervisionCSCircuitsupervisionRCResetofcircuitsBCBlockingofcircuitsCGBUCircuitgroupblockingunblockingCBUCircuitblockingunblockingCCTCContinuitychecktestcallRUSIMReceiptofunreasonablesignallinginformationmessagesRUReceiptofunknownMSMessagesPAParametersPVParametervaluesFDIntheforwarddirectionBDInthebackwarddirectionRMInthereleasemessageNCSNormalcallsetupordinaryspeechcallsBWCSBothwaycircuitselectionCASCalledaddresssendingSCSSuccessfulcallsetupPDDPPropagationdelaydeterminationprocedureNCRNormalcallreleaseUCSUnsuccessfulcallsetupASAbnormalsituationsTTimersRCDCResetofcircuitduringacallSCSSpecialcallsetupCCCContinuitycheckcallARAAutomaticrepeatattemptDSDualseizureSAOSemi-automaticoperationSGMSimplesegmentationFBFallbackBSBearerservicesUNR64kbit/sunrestrictedconnectiontypesSIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)20AUD3,1kHzaudioconnectiontypeMCTMultirateconnectiontypesCUFCongestionanduserflowcontrolACCAutomaticcongestioncontrolIACISUPavailabilitycontrolECEchocontrolSISimpleechocontrolENEnhancedechocontrolTARTemporaryalternateroutingHOPHopCounterProcedureCALLCOLCallCollectRequestProcedureNx64kNx64kbitconnectiontypeVValidbehaviourstimulusIInopportunestimulusSSyntacticallyincorrectstimulus(e.g.outsiderange,useofsparevalues)7Testpurposes(TP)7.1IntroductionForeachtestrequirementaTestPurpose(TP)isdefined.7.1.1Testpurpose(TP)namingconventionTestpurposesarenumbered,followingtheschemeofITU-TRecommendationQ.784.1[10],withineachgroup.Groupsareorganizedaccordingtothetestsuitestructure(TSS)downtothelastbutonelevel.TheclassificationintheV/I/SgroupsisdonebytheinclusionofV,IorSinthetestcasename.Additionalqualifiers,intheformoflowercaseletters,areaddedtoidentifyvariantswithinonegenerictestcasefromITU-TRecommendationQ.784.1[10],seetable3.AdditionallydefinedtestcasesarenumberedsucceedingtheonesusedinITU-TRecommendationQ.784.1[10].SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)21Table3:TPidentifiernamingconventionschemeIdentifier:IBC___._IBC=ISUPv3BasicCall=group:onecharacterfieldrepresentingthegroupreferenceaccordingtoTSSV:ValidstimulusI:InopportunestimulusS:Syntacticallyinvalidstimulus=CorrespondingreferencenumbersinITU-TRecommendationQ.784.1[10](ifany)=LowercasecharacterdistinguishingtestswithsamereferencenumberInthesubgroupsofCSSV/RU/PV/(FD,BD,RM)somespecialnamingconventionsapply.TheparagraphnumberoftheparametercodingdescriptioninITU-TRecommendationQ.763[16]asendorsedbyEN300356-1[2]hasbeenincludedinthetestcasenametodifferentiatethevarioustestsofparametervalues.7.1.2SourceoftestpurposedefinitionThetestpurposeshavebeendevelopedbasedonITU-TRecommendationQ.784.1[10].Someadditionalvalidationtestcasesaredefined.7.1.3TestpurposestructureAllofthefollowingtestpurposesbelongtothemaingroupISUP_v3_Basic_Call.Eachtestpurposeispresentedinaseparatetable.Thefirstrowofthetablecontainsthefollowingitems:TSSIdentifierinthetestsuitestructure(testgroup/subgroupidentifier).TPIdentifierofthetestpurpose.ISUP'97referenceThereferencetotherequirementintheISUP'97standards,whichledtothetestpurpose.SelectionexpressionSelectioncriterionforthetestpurposetakingintoaccounttheexchange'sroleandtheanswerstothespecifiedPICSquestions.N/AmeansthattheTPisvalidforallrolesofexchanges.Thetestpurposestructureisaccordingtothetestsuitestructure(TSS).TestpurposesthattestnormalbehaviourhavebeengroupedintheV-validbehaviourgroup.TestpurposesthattesttheIUTbehaviourinsituationsthatarenotnormaloperationhavebeengroupedintheI-Inopportunestimulusgroup.TestpurposesthattesttheIUTbehaviouronsparevaluesorvaluesoutofrangehavebeengroupedintheS-Syntacticallyincorrectstimulusgroup.SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)227.2TestpurposesforthebasiccallAllofthefollowingtestpurposesbelongtothemaingroupISUP_v3_Basic_Call.7.2.1CSSV:CircuitsupervisionandsignallingsupervisionTSSCSSV/CS/TPIBC_I_1_1ISUP'97referenceN/ASelectionexpressionN/AQ.784.1[10]reference1.1TestpurposeNon-allocatedcircuitsToverifythatonthereceiptofaCICrelatingtoacircuitwhichdoesnotexist,theIUTwilldiscardthemessageandalertthemaintenancesystem.TSSCSSV/RC/TPIBC_V_1_2_1ISUP'97reference2.9.3.1b)/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.2.1TestpurposeRSCreceivedonanidlecircuitToverifythatonreceiptofaResetcircuitmessagetheIUTwillrespondbysendingaReleasecompletemessage.TSSCSSV/RC/TPIBC_V_1_2_2ISUP'97reference2.9.3.1/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.2.2TestpurposeRSCsentonanidlecircuitToverifythattheIUTisabletogenerateaResetcircuitmessage.TSSCSSV/RC/TPIBC_V_1_2_3ISUP'97reference2.9.3.1c)/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.2.3TestpurposeRSCreceivedonalocallyblockedcircuitToverifythatonreceiptofaResetcircuitmessagewhileinitslocallyblockedstate,theIUTwillrespondbysendingaBlockingmessageandaReleasecompletemessage.SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)23TSSCSSV/RC/TPIBC_V_1_2_4ISUP'97reference2.9.3.1d)/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.2.4TestpurposeRSCreceivedonaremotelyblockedcircuitToverifythattheIUTisabletoreacttoaResetcircuitmessageforaremotelyblockedcircuit.TSSCSSV/RC/TPIBC_V_1_2_5_aISUP'97reference2.9.3.2/Q.764[13]SelectionexpressionPICSA.13/8Q.784.1[10]reference1.2.5TestpurposeCircuitgroupresetreceivedToverifythatonreceiptofoneCircuitgroupresetmessagetheIUTwillrespondbysendingaCircuitgroupresetacknowledgemessage.TSSCSSV/RC/TPIBC_S_1_2_5_bISUP'97reference2.9.3.2/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.2.5TestpurposeCircuitgroupresetreceivedToverifythataCircuitgroupresetmessageisdiscardedbytheIUTiftherearenocircuitsaffectedbythemessage.TSSCSSV/RC/TPIBC_S_1_2_5_cISUP'97reference2.9.3.2/Q.764[13]2.9.3.3i)/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.2.5TestpurposeCircuitgroupresetreceivedToverifythataCircuitgroupresetmessageisdiscardedbytheIUTiftherearemorethan32circuitsaffectedbythemessage.TSSCSSV/RC/TPIBC_V_1_2_6ISUP'97reference2.9.3.2/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.2.6TestpurposeCircuitgroupresetsentToverifythattheIUTisabletogenerateaCircuitgroupresetmessage.SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)24TSSCSSV/RC/TPIBC_V_1_2_7ISUP'97reference2.9.3.2.d)/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.2.7TestpurposeCircuitgroupresetreceivedonremotelyblockedcircuitsToverifythattheIUTisabletoreacttoaCircuitgroupresetmessagecorrectlyforremotelyblockedcircuits.TSSCSSV/BC/CGBU/TPIBC_V_1_3_1_1_aISUP'97reference2.8.2/Q.764[13]2.8.2.2/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.3.1.1TestpurposeCGBandCGUreceived(maintenanceoriented)ToverifythattheCircuitgroupblockingfeature(maintenanceoriented)canbecorrectlyinitiated.TSSCSSV/BC/CGBU/TPIBC_S_1_3_1_1_bISUP'97reference2.8.2.2/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.3.1.1TestpurposeCGBfor0circuitsreceived(maintenanceoriented)ToverifythataCircuitgroupblockingmessage(maintenanceoriented)isdiscardedbytheIUTiftherearenocircuitsaffectedbythemessage.TSSCSSV/BC/CGBU/TPIBC_S_1_3_1_1_cISUP'97reference2.8.2.3ix)/Q.764[13]SelectionexpressionPICSA.13/14Q.784.1[10]reference1.3.1.1TestpurposeCGBformorethan32circuitsreceived(maintenanceoriented)ToverifythataCircuitgroupblockingmessage(maintenanceoriented)isdiscardedbytheIUTiftherearemorethan32circuitsaffectedbythemessage.SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)25TSSCSSV/BC/CGBU/TPIBC_V_1_3_1_1_dISUP'97reference2.8.2/Q.764[13]2.8.2.2/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.3.1.1TestpurposeCGBandCGUreceived(hardwarefailureoriented)ToverifythattheCircuitgroupblockingfeature(hardwarefailureoriented)canbecorrectlyinitiated.TSSCSSV/BC/CGBU/TPIBC_S_1_3_1_1_eISUP'97reference2.8.2.2/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.3.1.1TestpurposeCGBfor0circuitsreceived(hardwarefailureoriented)ToverifythataCircuitgroupblockingmessage(hardwarefailureoriented)isdiscardedbytheIUTiftherearenocircuitsaffectedbythemessage.TSSCSSV/BC/CGBU/TPIBC_S_1_3_1_1_fISUP'97reference2.8.2.3ix)/Q.764[13]SelectionexpressionPICSA.13/14Q.784.1[10]reference1.3.1.1TestpurposeCGBformorethan32circuitsreceived(hardwarefailureoriented)ToverifythataCircuitgroupblockingmessage(hardwarefailureoriented)isdiscardedbytheIUTiftherearemorethan32circuitsaffectedbythemessage.TSSCSSV/BC/CGBU/TPIBC_V_1_3_1_2_aISUP'97reference2.8.2.2/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.3.1.2TestpurposeCGBandCGUsentToverifythattheIUTisabletogenerateaCircuitgroupblockingmessageandaCircuitgroupunblockingmessage(bothmaintenanceoriented).SIST EN 300 356-32 V3.0.4:2005

ETSIETSIEN300356-32V3.0.4(2000-09)26TSSCSSV/BC/CGBU/TPIBC_V_1_3_1_2_bISUP'97reference2.8.2.2/Q.764[13]SelectionexpressionN/AQ.784.1[10]reference1.3.1.2TestpurposeCGBandCGUsentToverifythattheIUTisabletogenerateaCircuitgroupblockingmessageandaCircuitgroupunblockingmessage(bothhardwarefailureoriented).TSSCSSV/BC/CGBU/TPIBC_V_1_3_1_3ISUP'97reference2.8.2.2/Q.764[13]SelectionexpressionN/AQ.784.1[10]referenceTestpurposeBlockingwithCBG(maintenanceoriented);unblockingwithUBLToverifythatacircuitwhichisblockedbyamaintenanceorientedCircuitgroupblockingmessagecanbeunblockedbyanUnblockingmessage.TSSCSSV/BC/CGBU/TPIBC_I_1_3_1_4ISUP'97reference2.8.2.2/Q.764[13]SelectionexpressionN/AQ.784.1[10]referenceTestpurposeUBLafterCGB(hardwarefailureoriented)Toverifythatahard
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