SIST EN 300 356-7 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 300 356-7 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 7: Terminal Portability (TP) supplementary service [ITU-T Recommendation Q.733, clause 4 (1993) modified]

SIST EN 300 356-7 V4.1.2:2004 is the Slovenian adoption of ETSI EN 300 356-7, published by SIST. It specifies the stage 3 signalling and switching aspects of the Terminal Portability (TP) supplementary service for Integrated Services Digital Network (ISDN) over Signalling System No. 7 (SS7) using the ISDN User Part (ISUP) version 4 on the international interface. It is aimed at operators and implementers who need the call-handling behaviour and message handling for TP in international ISDN interconnection.

What does SIST EN 300 356-7 V4.1.2:2004 specify?

SIST EN 300 356-7 V4.1.2:2004 specifies the stage 3 of the Terminal Portability (TP) supplementary service for pan-European ISDN, carried by SS7 ISUP on the international interface. In practical terms, it gives the signalling procedures and switching functions that networks need in order to support TP.

The document is part 7 of a multi-part ISUP version 4 deliverable. Its body is organized around the added scope and references for clause 4 of ITU-T Recommendation Q.733, followed by targeted modifications to subclauses that control call progress and gateway behaviour. Annex ZA is informative and covers compatibility information coding.

Annex	What it covers
Annex ZA	Coding of the compatibility information for the generic notification parameter, including the upgraded parameter and instruction indicators

The scope also states what the document does not cover: additional protocol requirements when the service is provided via a non-ISDN network, and additional protocol requirements for the national signalling interface.

What are the key requirements of SIST EN 300 356-7 V4.1.2:2004?

The main requirement of SIST EN 300 356-7 V4.1.2:2004 is that TP is implemented as a stage 3 service for ISDN over ISUP, using the three-stage model from ITU-T Recommendation I.130. For readers, this means the document is about protocol behaviour and switching actions, not user-facing service description or feature lists.

• Clause 4 scope - TP applies to interactive circuit-switched telecommunications services that require human attendance, such as telephony and videotelephony. This tells implementers which service types are in scope when they design support in switches and gateways.
• Clause 4 scope - TP allows a user to move a terminal from one socket to another within one basic access during an active call. In practice, the network has to keep the call active while the terminal is moved.
• Clause 4 scope - TP also allows a user to move an active call from one terminal to another terminal within one basic access. That matters for service continuity when a user transfers the call between endpoints.
• Clause 4 scope - The document applies to international interconnection and keeps the functions, formats and codes of messages and signals used by originating and destination local exchanges. This is important because international gateway exchanges must still handle the signalling correctly at the border.
• Clause 4.4 - When a call is suspended or resumed in a private network, the notification to the public network is carried in the generic notification parameter of the Call progress message. No Suspend or Resume messages are sent, and no related timer is started. This gives gateway designers a specific interworking rule for mixed private/public operation.
• Clause 4.5.2.3.1 and 4.5.2.4.2 - If TP is not supported in the succeeding or incoming national network, the international gateway exchange discards Suspend and Resume messages from the international network and gives no notification. This means the gateway must absorb unsupported TP signalling rather than pass on an incompatible message.
• Clause 4.5.2.3.1 - If TP is supported in the succeeding national network, the outgoing international gateway exchange acts like a transit exchange. For operators, that defines how the border node behaves when forwarding TP signalling onward.
• Clause 4 references - The document replaces several ITU-T references with ETSI-modified references to Q.730, Q.761 to Q.764, Q.767, Q.931, and Q.953. In practice, implementers should follow the ETSI versions named in the document when checking interoperability.

What terms does SIST EN 300 356-7 V4.1.2:2004 define?

Integrated Services Digital Network (ISDN) is the network environment in which the TP service is specified.

Signalling System No. 7 (SS7) is the signalling network used to carry the call-control information between exchanges.

ISDN User Part (ISUP) is the SS7 part that carries ISDN call signalling for the international interface.

Terminal Portability (TP) is the supplementary service that lets a user move a terminal or move an active call within one basic access.

Stage 3 is the level that defines signalling system protocols and switching functions needed to implement the service.

International gateway exchange is the exchange at the border of the international interface that forwards, transits, or discards TP-related signalling according to national support.

Call progress message is the message used to carry the generic notification parameter for suspended or resumed calls.

Who uses SIST EN 300 356-7 V4.1.2:2004?

SIST EN 300 356-7 V4.1.2:2004 is used by European public telecommunications operators, switch vendors, and network integration teams that implement ISDN on SS7. It is also relevant to engineers testing international gateway behaviour, because the document specifies how TP signalling is handled when networks do or do not support the service.

Quality managers and interoperability test teams use it to check whether call suspension, resumption, and notification handling match the expected stage 3 behaviour. It is most relevant where active-call terminal movement or call movement between terminals must work across international ISDN interconnection.

What changed in SIST EN 300 356-7 V4.1.2:2004 from the previous edition?

This edition is published as V4.1.2 and the document history shows earlier publications V4.1.1 and V3.1.3. The text identifies added scope and references for clause 4 and specific modifications to the handling of suspend and resume signalling, but it does not provide a separate change log.

Which standards are used with SIST EN 300 356-7 V4.1.2:2004?

The document uses ITU-T Recommendation I.130 for the three-stage service description model. It refers to ETS 300053 for the TP service description and ETS 300054 for TP functional capabilities and information flows, which together provide the stage 1 and stage 2 background.

It also uses EN 300055-1 for the TP DSS1 protocol, ETS 300121 for ISUP version 1 international ISDN interconnections, EN 300356-1 for ISUP version 4 basic services, EN 300356-2 for ISUP version 4 ISDN supplementary service, and EN 300403-1 for the DSS1 signalling network layer for circuit-mode basic call control.

What does the SIST EN 300 356-7 V4.1.2:2004 document contain?

The document contains the ETSI endorsement of ITU-T Recommendation Q.733, clause 4, with ETSI-specific modifications. It gives a modified scope and reference list, then updates the handling of call progress notifications, Suspend and Resume behaviour, and gateway behaviour for supported and unsupported TP in national networks.

It also contains a replacement table for references inside clause 4, so implementers can map the ITU-T references to the corresponding ETSI documents. Annex ZA provides informative coding guidance for compatibility information, including the generic notification parameter and instruction indicators, which is useful when implementing or verifying message coding at the protocol level.

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 7: Terminal Portability (TP) supplementary service [ITU-T Recommendation Q.733, clause 4 (1993) modified]33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 300 356-7 Version 4.1.2SIST EN 300 356-7 V4.1.2:2004en01-april-2004SIST EN 300 356-7 V4.1.2:2004SLOVENSKI
STANDARD
ETSIEN300356-7V4.1.2(2001-07)EuropeanStandard(Telecommunicationsseries)IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7(SS7);ISDNUserPart(ISUP)version4fortheinternationalinterface;Part7:TerminalPortability(TP)supplementaryservice[ITU-TRecommendationQ.733,clause4(1993)modified]SIST EN 300 356-7 V4.1.2:2004

ETSIETSIEN300356-7V4.1.2(2001-07)2ReferenceREN/SPAN-01082-07KeywordsISDN,ISUP,SS7,supplementaryservice,TP,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 300 356-7 V4.1.2:2004

ETSIETSIEN300356-7V4.1.2(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).Thepresentdocumentispart7ofamulti-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 300 356-7 V4.1.2:2004

ETSIETSIEN300356-7V4.1.2(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)neededtosupporttheTerminalPortability(TP)supplementaryservice.Thestage1andstage2aspectsaredetailedinETS300053[2]andETS300054[3],respectively.NationaltranspositiondatesDateofadoptionofthisEN:13July2001DateoflatestannouncementofthisEN(doa):31Octob
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