SIST EN 300 356-8 V4.1.2:2004

• 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 300 356-8 V4.1.2 (2001-07) - Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 8: User-to-User Signalling (UUS) supplementary service [ITU-T Recommendation Q.737, clause 1 (1997) modified]

SIST EN 300 356-8 V4.1.2:2004 is the Slovenian adoption of EN 300 356-8 Version 4.1.2 for the Integrated Services Digital Network (ISDN) over Signalling System No. 7 (SS7). It specifies the stage 3 protocol procedures and switching functions for the User-to-User Signalling (UUS) supplementary service on the international ISDN interface. It is written for network operators and implementers who need UUS to interwork correctly over ISDN User Part (ISUP).

What does SIST EN 300 356-8 V4.1.2:2004 specify?

SIST EN 300 356-8 V4.1.2:2004 specifies the stage 3 part of the UUS supplementary service for pan-European ISDN as carried over SS7 using ISUP. In practice, that means the document focuses on signalling behaviour, message handling, and switching actions rather than on the user-facing service description or functional requirements.

The scope is limited to international interconnection. The document also says it does not specify extra protocol requirements when the service is provided through a non-ISDN telecommunications network, and it does not specify extra requirements for the national signalling interface.

The document is organized as an endorsement of ITU-T Recommendation Q.737, clause 1, with global modifications, a references section, and clause-level changes. It also retains the functions, formats, codes, messages, signals, and exchange actions needed for the international interface.

What are the key requirements of SIST EN 300 356-8 V4.1.2:2004?

SIST EN 300 356-8 V4.1.2:2004 defines how UUS is supported when ISDN users exchange a limited amount of information over the signalling channel in association with a call. For implementers, that means UUS is not a separate bearer service here - it is carried as signalling information tied to call control.

Stage 3 behavior and service boundaries

The document follows the ITU-T three-level model from Recommendation I.130. It covers stage 3 only, while the stage 1 and stage 2 aspects are taken from the named companion documents. This matters because system design and conformance work must align signalling behaviour with the service and functional descriptions.

International interworking rules

The document keeps the signalling details needed at originating and destination local exchanges even though it applies only to international interconnection. It also says that items marked for national use are included for informative purposes for the international interface, and if a network supports them nationally they should be supported that way. For gateway design, that means the international gateway may need to support both national and international behaviour when a national signalling system behaves differently.

Handling of interworking and service indicators

The modified interworking table in clause 1.1.7 updates the way UUI and interworking indicators are handled across different network types, including non-SS7 networks, SS7 networks not using ISUP or TUP, and networks that do not support the service. In practice, this tells engineers when UUI is discarded, when the network reports that the service is not provided, and when release with diagnostics is used.

Facility reject and suspended-call handling

Clause 1.3.5.2.5.2.2 adds cause handling for facility reject messages: one cause applies when the called user does not respond, and another applies in other rejection or support-failure cases. Clause 1.3.6.18 says that if a user-to-user service request arrives while a call is suspended, the network returns a facility reject and discards user-to-user messages received during suspension. This is important for switch logic and interoperability testing.

Interactions moved to another part

Several subclauses are replaced with “No impact on ISUP,” and other interaction text is redirected to EN 300 356-18. That tells readers that some service interactions are handled in the CCBS part of the series rather than in this document.

What terms does SIST EN 300 356-8 V4.1.2:2004 define?

• Integrated Services Digital Network (ISDN) - The digital telecom network context for this service and the interface the document addresses.
• Signalling System No. 7 (SS7) - The signalling system used to carry ISUP procedures.
• ISDN User Part (ISUP) - The SS7 protocol part used here for international ISDN call signalling.
• User-to-User Signalling (UUS) - The supplementary service that carries limited user information within call-related signalling.
• Digital Subscriber Signalling System No. one (DSS1) - The user-side signalling system named in the references for related UUS work.
• Protocol Implementation Conformance Statement (PICS) - The proforma family used in the companion testing documents to declare implementation features.

Who uses SIST EN 300 356-8 V4.1.2:2004?

Telecommunications operators, especially European public telecommunications operators, use SIST EN 300 356-8 V4.1.2:2004 when they implement or verify UUS on ISDN networks. Network and switch engineers use it to define signalling behaviour, gateway handling, and interworking responses. Test labs, equipment vendors, and quality or procurement teams use it to check whether an implementation supports the specified ISUP-based UUS behaviour.

What changed in SIST EN 300 356-8 V4.1.2:2004 from the previous edition?

SIST EN 300 356-8 V4.1.2:2004 updates the Q.737 clause 1 material with a new Scope and References section, revised reference mapping, and a modified interworking table. It also changes several subclauses to clarify that some cases have no impact on ISUP, shifts interaction details to EN 300 356-18, adds facility reject cause handling, and defines what happens when user-to-user messages arrive during a suspended call.

Which standards are used with SIST EN 300 356-8 V4.1.2:2004?

Reference	Contribution
ITU-T Recommendation I.130	Service characterization model with stage 1, 2, and 3 levels
ETSI ETS 300 121	ISUP version 1 for international ISDN interconnections
ETSI ETS 300 284	UUS service description
ETSI EN 300 286-1	DSS1 protocol for UUS
ETSI EN 300 356-1	Part 1, basic services
ETSI EN 300 356-2	Part 2, ISDN supplementary service
ETSI EN 300 356-18	Part 18, CCBS supplementary service
ETSI EN 300 403-1	DSS1 call control signalling network layer
ETSI ETR 285	UUS functional capabilities and information flows

The foreword also places this part within the larger EN 300 356 series, which covers the other ISUP supplementary services and the conformance and test parts for basic and supplementary services.

What does the SIST EN 300 356-8 V4.1.2:2004 document contain?

The document contains an endorsement notice for ITU-T Recommendation Q.737, clause 1, and the specific ETSI modifications needed for the European international ISDN interface. It includes a references section, a modified interworking table, and clause-level replacement text for service behaviour, rejection causes, and call-suspension handling.

It also records the relationship between this part and the rest of the EN 300 356 series, so users can trace where basic services, other supplementary services, and testing material are covered. The history section shows the publication trail of the edition.

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 8: User-to-User Signalling (UUS) supplementary service [ITU-T Recommendation Q.737, clause 1 (1997) modified]33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 300 356-8 Version 4.1.2SIST EN 300 356-8 V4.1.2:2004en01-april-2004SIST EN 300 356-8 V4.1.2:2004SLOVENSKI
STANDARD
ETSIEN300356-8V4.1.2(2001-07)EuropeanStandard(Telecommunicationsseries)IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7(SS7);ISDNUserPart(ISUP)version4fortheinternationalinterface;Part8:User-to-UserSignalling(UUS)supplementaryservice[ITU-TRecommendationQ.737,clause1(1997)modified]SIST EN 300 356-8 V4.1.2:2004

ETSIETSIEN300356-8V4.1.2(2001-07)2ReferenceREN/SPAN-01082-08KeywordsISDN,ISUP,SS7,supplementaryservice,UUS,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 300 356-8 V4.1.2:2004

ETSIETSIEN300356-8V4.1.2(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).Thepresentdocumentispart8ofamulti-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 300 356-8 V4.1.2:2004

ETSIETSIEN300356-8V4.1.2(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)neededtosupporttheUser-to-UserSignalling(UUS)supplementaryservice.Thestage1andstage2aspectsaredetailedinETS300284[3]andETR285[9],respectively.NationaltranspositiondatesDateofadoptionofthisEN:13July2001DateoflatestannouncementofthisEN(doa):31October2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30April2002DateofwithdrawalofanyconflictingNationalStandard(dow):30April2002EndorsementnoticeTheelementsofITU-TRecommendationQ.737,clause1(1997)apply,withthefollowingmodifications.NOTE:Newormodifiedtextisindicatedusingsidebars.Inaddition,underliningand/orstrike-outareusedtohighlightdetailedmodificationswherenecessary.SIST EN 300 356-8 V4.1.2:2004

ETSIETSIEN300356-8V4.1.2(2001-07)5GlobalmodificationstoITU-TRecommendationQ.737,clause1Insertthefollowingtwoclauses(ScopeandReferences)atthestartofclause1.ScopeThepresentdocumentspecifiesthestagethreeoftheUser-to-UserSignalling(UUS)supplementaryserviceforthepan-EuropeanIntegratedServicesDigitalNetwork(ISDN)asprovidedbytheEuropeanpublicteleco
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