SIST EN 300 356-3 V4.2.1:2004

• Abstract:

  To create ETSI endorsement documents to ITU ISUP 2000.

• Status: Published
• Publication Date: 31-Mar-2004
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Apr-2004
• Due Date: 01-Apr-2004
• Completion Date: 01-Apr-2004
• Ref Project: ETSI EN 300 356-3 V4.2.1 (2001-07) - Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 3: Calling Line Identification Presentation (CLIP) supplementary service [ITU-T Recommendation Q.731, clause 3 (1993) modified]

SIST EN 300 356-3 V4.2.1:2004 is the Slovenian adoption of ETSI EN 300 356-3 V4.2.1 for ISDN signaling on the international interface. It specifies stage 3 of the Calling Line Identification Presentation (CLIP) supplementary service in ISUP version 4, so it tells network and switch implementers how the service is signaled and handled.

What does SIST EN 300 356-3 V4.2.1:2004 specify?

SIST EN 300 356-3 V4.2.1:2004 specifies the stage 3 protocol procedures and switching functions for CLIP in the pan-European ISDN using Signalling System No. 7 (SS7) and the ISDN User Part (ISUP). Stage 3 is the signaling and network behavior layer, so the document is aimed at implementers who need to exchange the service correctly between networks.

The document applies to international interconnection. It also retains certain functions, formats, codes and actions at originating and destination local exchanges, and it treats items marked for national use as informative for the international interface specification.

The document is organized as a global modification to ITU-T Recommendation Q.731, clause 3. It inserts a scope and references section, then applies clause-by-clause changes and adds one informative annex.

Annex	What it covers
Annex ZA	Coding of the compatibility information for the generic number parameter

What are the key requirements of SIST EN 300 356-3 V4.2.1:2004?

SIST EN 300 356-3 V4.2.1:2004 focuses on how the calling party number is presented, restricted, or omitted in ISUP signaling. In practice, this is the logic that determines what the called user sees and what the network carries in the Initial Address Message (IAM).

Service behavior

• The CLIP supplementary service presents the calling user’s number, and any additional address information such as a calling party sub-address, to the called user. This matters because the receiving side must know what identity information can be shown.
• CLIP applies to all incoming calls except cases where CLIR is active, the network inserts a default number that is not presentable to the called user, or the complete calling number is not available at the destination exchange. This tells implementers when the network must suppress presentation.

Presentation indicators and network-restricted numbers

• The address presentation restricted indicator on the calling party number and on the generic number parameter is set to presentation allowed or presentation restricted as received from the access signaling system. This keeps the signaling consistent between access and international parts of the network.
• When CLIR has not been invoked, the calling party number indicator may be set to presentation restricted by network for a default number that is not presentable. In practice, this gives the international gateway a defined way to handle network-inserted caller identities.
• If the default number is not presentable, the generic number indicator, when generated, is set to presentation allowed as received from the access signaling system. That distinction matters when the network has to pass on auxiliary calling information.

Message handling at the international gateway

• If the received calling party number has presentation restricted or presentation restricted by network, the outgoing international gateway exchange acts according to bilateral agreement between the two networks. This means the operator must align interconnect behavior with the other network.
• If the received calling party number is address not available, the calling party number parameter is omitted from the IAM. If the calling party number is not sent across the international section, the generic number parameter is omitted from the IAM when its number qualifier indicates additional calling party number. This keeps forbidden or unavailable identity data out of the international signaling path.
• When presentation is blocked because the APRI is presentation restricted by network, the end-user receives address not available. That is the user-facing outcome the switch must deliver.

Compatibility coding

• Annex ZA gives the recommended coding for compatibility information for the generic number parameter. Implementers use this when they need to code or verify parameter compatibility in signaling messages.

What terms does SIST EN 300 356-3 V4.2.1:2004 define?

• Calling Line Identification Presentation (CLIP) - A supplementary service that presents the calling user’s number, and possibly extra address information, to the called user.
• Calling Line Identification Restriction (CLIR) - A supplementary service that restricts presentation of the calling line identity.
• ISDN User Part (ISUP) - The SS7 signaling part used to support ISDN call control and supplementary services.
• Initial Address Message (IAM) - The ISUP message used to start call setup, where caller identity handling is carried.
• Address Presentation Restricted Indicator (APRI) - The indicator that states whether the calling number may be presented or must be restricted.
• Anonymous Call Rejection (ACR) - A supplementary service referenced for cases where default numbers are not presentable.

Who uses SIST EN 300 356-3 V4.2.1:2004?

SIST EN 300 356-3 V4.2.1:2004 is used by telecommunications operators, SS7 and ISUP switch vendors, and engineers who implement international ISDN interworking. It is also relevant for test and interoperability teams that verify caller ID presentation, number restriction handling, and gateway behavior against bilateral network agreements.

Quality managers and buyers use it to check whether equipment or a network feature supports the CLIP signaling defined for the international interface. It is especially relevant where the network must handle network-restricted numbers, default numbers, and the exchange of calling identity across borders.

Which standards are used with SIST EN 300 356-3 V4.2.1:2004?

• ITU-T Recommendation I.130 - The three-stage model used to describe telecommunication services in ISDN.
• EN 300 089 - The CLIP service description used for the stage 1 view.
• ETS 300 091 - The CLIP and CLIR functional capabilities and information flows used for the stage 2 view.
• EN 300 092-1 - The DSS1 protocol for CLIP.
• ETS 300 121 - The earlier ISUP version 1 reference for international ISDN interconnections.
• EN 300 356-1 - The ISUP version 4 part covering basic services.
• EN 300 356-2 - The ISUP version 4 part covering ISDN supplementary service.
• EN 300 403-1 - The DSS1 signaling network layer for circuit-mode basic call control.
• EN 301 798 - The service description for Anonymous Call Rejection (ACR).
• EN 300 356-21 - The ISUP version 4 part for the ACR supplementary service.

What does the SIST EN 300 356-3 V4.2.1:2004 document contain?

The document contains the foreword for the EN 300 356 series, the inserted scope and references sections, and a set of specific modifications to ITU-T Recommendation Q.731, clause 3. It also includes edits to subclauses, table notes, and figures that govern how calling party information is presented or suppressed in signaling.

For implementers, the most useful parts are the rules for network-restricted numbers, default numbers, and the conditions under which the calling party number or generic number parameter is included in the IAM. Annex ZA adds the compatibility-coding guidance for the generic number parameter.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 3: Calling Line Identification Presentation (CLIP) supplementary service [ITU-T Recommendation Q.731, clause 3 (1993) modified]33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 300 356-3 Version 4.2.1SIST EN 300 356-3 V4.2.1:2004en01-april-2004SIST EN 300 356-3 V4.2.1:2004SLOVENSKI
STANDARD
ETSIEN300356-3V4.2.1(2001-07)EuropeanStandard(Telecommunicationsseries)IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7(SS7);ISDNUserPart(ISUP)version4fortheinternationalinterface;Part3:CallingLineIdentificationPresentation(CLIP)supplementaryservice[ITU-TRecommendationQ.731,clause3(1993)modified]SIST EN 300 356-3 V4.2.1:2004

ETSIETSIEN300356-3V4.2.1(2001-07)2ReferenceREN/SPAN-01082-03KeywordsISDN,ISUP,SS7,supplementaryservice,CLIP,endorsementETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°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:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 300 356-3 V4.2.1:2004

ETSIETSIEN300356-3V4.2.1(2001-07)3IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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).Thepresentdocumentispart3ofamulti-partdeliverablecoveringtheISDNUserPart(ISUP)version4fortheinternationalinterface,asidentifiedbelow:Part1:"Basicservices[ITU-TRecommendationsQ.761toQ.764(1999)modified]";Part2:"ISDNsupplementaryservice[ITU-TRecommendationQ.730(1999)modified]";Part3:"CallingLineIdentificationPresentation(CLIP)supplementaryservice[ITU-TRecommendationQ.731,clause3(1993)modified]";Part4:"CallingLineIdentificationRestriction(CLIR)supplementaryservice[ITU-TRecommendationQ.731,clause4(1993)modified]";Part5:"ConnectedLineIdentificationPresentation(COLP)supplementaryservice[ITU-TRecommendationQ.731,clause5(1993)modified]";Part6:"ConnectedLineIdentificationRestriction(COLR)supplementaryservice[ITU-TRecommendationQ.731,clause6(1993)modified]";Part7:"TerminalPortability(TP)supplementaryservice[ITU-TRecommendationQ.733,clause4(1993)modified]";Part8:"User-to-UserSignalling(UUS)supplementaryservice[ITU-TRecommendationQ.737,clause1(1997)modified]";Part9:"ClosedUserGroup(CUG)supplementaryservice[ITU-TRecommendationQ.735,clause1(1993)modified]";Part10:"Subaddressing(SUB)supplementaryservice[ITU-TRecommendationQ.731,clause8(1992)modified]";Part11:"MaliciousCallIdentification(MCID)supplementaryservice[ITU-TRecommendationQ.731,clause7(1997)modified]";Part12:"ConferenceCall,add-on(CONF)supplementaryservice[ITU-TRecommendationQ.734,clause1(1993)andimplementorsguide(1998)modified]";Part14:"ExplicitCallTransfer(ECT)supplementaryservice[ITU-TRecommendationQ.732,clause7(1996)andimplementorsguide(1998)modified]";Part15:"Diversionsupplementaryservice[ITU-TRecommendationQ.732,clauses2to5(1999)modified]";Part16:"CallHold(HOLD)supplementaryservice[ITU-TRecommendationQ.733,clause2(1993)modified]";Part17:"CallWaiting(CW)supplementaryservice[ITU-TRecommendationQ.733,clause1(1992)modified]";SIST EN 300 356-3 V4.2.1:2004

ETSIETSIEN300356-3V4.2.1(2001-07)4Part18:"CompletionofCallstoBusySubscriber(CCBS)supplementaryservice[ITU-TRecommendationQ.733,clause3(1997)modified]";Part19:"Three-Party(3PTY)supplementaryservice[ITU-TRecommendationQ.734,clause2(1996)andimplementorsguide(1998)modified]";Part20:"CompletionofCallsonNoReply(CCNR)supplementaryservice[ITU-TrecommendationQ.733,clause5(1999)modified]";Part21:"AnonymousCallRejection(ACR)supplementaryservice[ITU-TRecommendationQ.731,clause4(1993)]";Part31:"ProtocolImplementationConformanceStatement(PICS)proformaspecificationforbasicservices";Part32:"TestSuiteStructureandTestPurposes(TSS&TP)specificationforbasicservices";Part33:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforbasicservices";Part34:"ProtocolImplementationConformanceStatement(PICS)proformaspecificationforsupplementaryservices";Part35:"TestSuiteStructureandTestPurposes(TSS&TP)specificationforsupplementaryservices";Part36:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforsupplementaryservices".InaccordancewithITU-TRecommendationI.130[1],thefollowingthreelevelstructureisusedtodescribethesupplementarytelecommunicationservicesasprovidedbyEuropeanpublictelecommunicationsoperatorsunderthepan-EuropeanIntegratedServicesDigitalNetwork(ISDN):-Stage1:isanoverallservicedescription,fromtheuser'sstand-point;-Stage2:identifiesthefunctionalcapabilitiesandinformationflowsneededtosupporttheservicedescribedinstage1;and-Stage3:definesthesignallingsystemprotocolsandswitchingfunctionsneededtoimplementtheservicedescribedinstage1.Thepresentdocumentdetailsthestagethreeaspects(signallingsystemprotocolsandswitchingfunctions)neededtosupporttheCallingLineIdentificationPresentation(CLIP)supplementaryservice.Thestage1andstage2aspectsaredetailedinEN300089[2]andETS300091[3],respectively.NationaltranspositiondatesDateofadoptionofthisEN:13July2001DateoflatestannouncementofthisEN(doa):31October2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30April2002DateofwithdrawalofanyconflictingNationalStandard(dow):30April2002EndorsementnoticeTheelementsofITU-TRecommendationQ.731,clause3(1993)apply,withthefollowingmodifications.NOTE:Newormodifiedtextisindicatedusingsidebars.Inaddition,underliningand/orstrike-outareusedtohighlightdetailedmodificationswherenecessary.SIST EN 300 356-3 V4.2.1:2004

ETSIETSIEN300356-3V4.2.1(2001-07)5GlobalmodificationstoITU-TRecommendationQ.731,clause3Insertthefollowingtwoclauses(ScopeandReferences)atthestartofclause3.ScopeThepresentdocumentspecifiesthestagethreeoftheCallingLineIdentificationPresentation(CLIP)supplementaryserviceforthepan-EuropeanIntegratedServicesDigitalNetwork(ISDN)asprovidedbytheEuropeanpublictelecommunicationsoperatorsbymeansoftheSignallingSystemNo.7protocolfortheISDNUserPart(ISUP).Stagethreeidentifiestheprotocolproceduresandswitchingfunctionsneededtosupportatelecommunicationservice(seeITU-TRecommendationI.130[1]).ThepresentdocumentdoesnotspecifytheadditionalprotocolrequirementswheretheserviceisprovidedtotheuserviaatelecommunicationsnetworkthatisnotanISDN.Thepresentdocumentdoesnotspecifytheadditionalprotocolrequirementsforthenationalsignallinginterface.Althoughthepresentdocumentappliesonlytotheinternationalinterconnection,thespecificationoffunctions,formatsandcodesofmessagesandsignals,andactionsperformedatoriginatinganddestinationlocalexchangesareretained.Formats,codesandproceduresmarkedfornationaluseareincludedforinformativepurposesfortheinternationalinterfacespecification.Iftheseitemssomarkedaresupportedwithinanationalnetworkandoperator'snetwork,thenitisproposedthattheyshallbesupportedinthismanner.NOTE:Inth
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