SIST EN 300 356-16 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 300 356-16 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 16: Call Hold (HOLD) supplementary service [ITU-T Recommendation Q.733, clause 2 (1993) modified]

SIST EN 300 356-16 V4.1.2:2004 is the Slovenian adoption of ETSI EN 300 356-16 Version 4.1.2. It covers the Call Hold (HOLD) supplementary service for Integrated Services Digital Network (ISDN) signalling over Signalling System No.7 (SS7) using the ISDN User Part (ISUP) version 4 international interface. The document specifies the stage 3 signalling procedures and switching functions for operators and implementers who need consistent HOLD behaviour in pan-European ISDN.

What does SIST EN 300 356-16 V4.1.2:2004 specify?

SIST EN 300 356-16 V4.1.2:2004 specifies the stage 3 aspects of the Call Hold (HOLD) supplementary service for the pan-European ISDN on the SS7 ISUP international interface. In practical terms, it tells network and switch implementers how the service behaves in signalling, and how local exchanges handle the call when HOLD is used.

The document is organized as an endorsement of ITU-T Recommendation Q.733, clause 2, with global modifications. It inserts a Scope and References section at the start of clause 2 and keeps an informative annex on compatibility coding.

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

The scope also states what the document leaves outside its own coverage: additional protocol requirements for non-ISDN access, and additional protocol requirements for the national signalling interface.

What are the key requirements of SIST EN 300 356-16 V4.1.2:2004?

SIST EN 300 356-16 V4.1.2:2004 defines the signalling and switching rules needed to support HOLD at stage 3. The most important point is that HOLD lets a user interrupt an existing call and later re-establish communication if desired.

• The service applies to all circuit-mode basic telecommunication services. For implementers, that means HOLD is not limited to one bearer type within the circuit-switched ISDN context.
• The document applies to the international interconnection. It retains the specification of functions, formats, codes, and actions at originating and destination local exchanges, so international call handling remains interoperable.
• The document does not add protocol requirements for delivery of the service over a network that is not an ISDN. In practice, that keeps the specification focused on ISDN-based operation.
• The document does not add protocol requirements for the national signalling interface. This matters for buyers and engineers because national variants need separate consideration outside the international interface scope.
• Items marked for national use are kept for informative purposes in the international interface specification. If a network or operator supports those items, they are to be supported in that same way.
• If a national signalling system behaves differently, the international gateway exchange is expected to support both the national and the international network. That is important at borders and interconnect points where both behaviours may need to coexist.
• Annex ZA gives the recommended coding approach for compatibility information in the generic notification parameter. Implementers use that when mapping or carrying compatibility-related signalling information.

What terms does SIST EN 300 356-16 V4.1.2:2004 define?

SIST EN 300 356-16 V4.1.2:2004 uses the following terms as central building blocks of the service description:

• Integrated Services Digital Network (ISDN) - the network environment the standard targets for HOLD signalling.
• Signalling System No.7 (SS7) - the signalling system used to carry the call-control information.
• ISDN User Part (ISUP) - the SS7 user part used for ISDN interconnection signalling.
• Call Hold (HOLD) - the supplementary service that pauses an active call and allows it to be resumed later.
• Stage 1, Stage 2, Stage 3 - the service-description layers, from user view to functional flows to protocol and switching functions.
• Digital Subscriber Signalling System No. one (DSS1) - the ISDN access signalling system referenced for related HOLD work.

Who uses SIST EN 300 356-16 V4.1.2:2004?

SIST EN 300 356-16 V4.1.2:2004 is used by public telecommunications operators, switch vendors, signalling engineers, and interoperability test teams working on ISDN interconnection. It is also relevant to standards and conformance teams that need to align HOLD behaviour across national and international networks. Buyers and quality managers use it when they need to check whether equipment or network functions support the HOLD supplementary service on SS7/ISUP international interfaces.

What changed in SIST EN 300 356-16 V4.1.2:2004 from the previous edition?

SIST EN 300 356-16 V4.1.2:2004 is published as version V4.1.2, after V4.1.1 in the document history. The history also records Edition 1 and the earlier V3.1.3 publication.

Which standards are used with SIST EN 300 356-16 V4.1.2:2004?

SIST EN 300 356-16 V4.1.2:2004 refers to these documents as its supporting and companion references:

• ITU-T Recommendation I.130 - the stage model for describing telecommunication services and network capabilities.
• ETS 300 139 - the service description for Call Hold at stage 1.
• ETS 300 140 - the functional capabilities and information flows for Call Hold at stage 2.
• ETSI EN 300 356-1 - the basic services part of ISUP version 4 for the international interface.
• ETSI EN 300 356-2 - the ISDN supplementary service part of ISUP version 4.
• ETSI EN 300 403-1 - the DSS1 signalling network layer for circuit-mode basic call control.
• ETSI ETS 300 121 - the earlier ISUP version 1 reference for international ISDN interconnections.
• ETSI EN 300 141-1 - the DSS1 protocol for the Call Hold supplementary service.

Clause 2 also replaces several ITU-T references with the corresponding ETSI-modified versions, including Q.730, Q.761 to Q.764, Q.767, Q.931 and Q.953.

What does the SIST EN 300 356-16 V4.1.2:2004 document contain?

SIST EN 300 356-16 V4.1.2:2004 contains the endorsement notice, the scope and reference text added to clause 2, the reference replacement table, and an informative annex on compatibility information coding. It also includes the ETSI intellectual property notice and the publication history. For users, the useful part is the combination of service scope, interworking rules, and the coding guidance in Annex ZA.

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 16: Call Hold (HOLD) supplementary service [ITU-T Recommendation Q.733, clause 2 (1993) modified]33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 300 356-16 Version 4.1.2SIST EN 300 356-16 V4.1.2:2004en01-april-2004SIST EN 300 356-16 V4.1.2:2004SLOVENSKI
STANDARD
ETSIEN300356-16V4.1.2(2001-07)EuropeanStandard(Telecommunicationsseries)IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7(SS7);ISDNUserPart(ISUP)version4fortheinternationalinterface;Part16:CallHold(HOLD)supplementaryservice[ITU-TRecommendationQ.733,clause2(1993)modified]SIST EN 300 356-16 V4.1.2:2004

ETSIETSIEN300356-16V4.1.2(2001-07)2ReferenceREN/SPAN-01082-16KeywordsISDN,ISUP,SS7,supplementaryservice,HOLD,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 300 356-16 V4.1.2:2004

ETSIETSIEN300356-16V4.1.2(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).Thepresentdocumentispart16ofamulti-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]";SIST EN 300 356-16 V4.1.2:2004

ETSIETSIEN300356-16V4.1.2(2001-07)4Part17:"CallWaiting(CW)supplementaryservice[ITU-TRecommendationQ.733,clause1(1992)modified]";Part18:"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],thefollowingthreelevelstructureisusedtodescribethesupplementarytelecommunicationservicesasprovidedbyEuropeanpublictelecommunicationsopera
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