SIST EN 300 356-18 V4.1.2:2004
(Main)Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service [ITU-T Recommendation Q.733, clause 3 (1997) modified]
General Information
- Abstract
To create ETSI endorsement documents to ITU ISUP 2000.
- Status
- Published
- Publication Date
- 31-Mar-2004
- 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
Overview
SIST EN 300 356-18 V4.1.2:2004 is a Slovenian standard that aligns with the European EN 300 356-18 standard, endorsed by ETSI, and focuses on the Integrated Services Digital Network (ISDN) Signalling System No. 7 (SS7) and its ISDN User Part (ISUP) version 4 for the international interface. This specific part, Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service, provides comprehensive requirements for facilitating the automatic completion of calls to a subscriber whose line was previously busy according to the modified ITU-T Recommendation Q.733, clause 3.
This standard is particularly relevant for network operators, equipment manufacturers, and service developers involved in international ISDN interconnections, ensuring seamless supplementary service support across European public telecommunications networks.
Key Topics
ISDN and SS7 ISUP Framework
Defines the use of Signalling System No. 7 (SS7) and the ISDN User Part (ISUP) protocol version 4 for international interfaces, ensuring reliable and standardized digital communication.Completion of Calls to Busy Subscriber (CCBS)
Describes the supplementary service that allows a calling user to automatically complete a call to a destination subscriber once the busy condition is cleared, without the need to redial.International Interconnection Requirements
Provides additional procedures, protocol messages, and switching functions necessary for supporting CCBS over international ISDN interfaces using SS7.Modified ITU-T Recommendations
Applies specific modifications to ITU-T Recommendation Q.733, clause 3, to suit European network scenarios while maintaining compatibility with international standards.Protocol and Signaling Specifications
Details the format, codes, and messaging procedures required for the CCBS service, including informative guidance for parameters used in international ISDN exchanges.
Applications
The SIST EN 300 356-18 V4.1.2:2004 standard is instrumental in supporting the following practical applications:
Telecom Operator Interconnection
Ensures consistent implementation of the CCBS supplementary service across public ISDN networks in Europe, supporting user expectations for call completion functionality.Network Equipment Compliance
Provides equipment vendors with a harmonized set of requirements for implementing SS7 ISUP signaling and the CCBS feature on international gateways, promoting interoperability.Enhanced Customer Service
Enables telecommunications providers to offer improved user experience by automating the process of re-establishing calls to busy subscribers, thereby increasing call completion rates and customer satisfaction.Supplementary Services Expansion
Forms part of a broader suite of ISDN supplementary services, facilitating advanced features such as call waiting, call hold, call transfer, and malicious call identification.
Related Standards
For a comprehensive approach to ISDN supplementary services and international ISUP signaling, it is essential to refer to the following standards in conjunction with SIST EN 300 356-18 V4.1.2:2004:
- SIST EN 300 356-1: Basic services and general ISUP requirements
- SIST EN 300 356-2: Supplementary service mechanisms
- SIST EN 300 357: Service description for the Completion of Calls to Busy Subscriber (CCBS)
- SIST EN 300 358: Functional capabilities and information flows for CCBS
- ECMA-165 / ETS 300 121: ISDN User Part for international ISDN interconnections (ISUP version 1)
- ITU-T Recommendation Q.733: Original specification for CCBS
Adhering to these related standards ensures end-to-end compatibility, robust interoperability, and the reliable deployment of ISDN supplementary services across multiple network environments.
Keywords: ISDN, SS7, ISUP, completion of calls, busy subscriber, CCBS, supplementary service, international interface, signalling system, ETSI, telecommunication standards, network interconnection.
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Frequently Asked Questions
SIST EN 300 356-18 V4.1.2:2004 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service [ITU-T Recommendation Q.733, clause 3 (1997) modified]". This standard covers: To create ETSI endorsement documents to ITU ISUP 2000.
To create ETSI endorsement documents to ITU ISUP 2000.
SIST EN 300 356-18 V4.1.2:2004 is classified under the following ICS (International Classification for Standards) categories: 33.080 - Integrated Services Digital Network (ISDN). The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 356-18 V4.1.2:2004 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.%6Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service [ITU-T Recommendation Q.733, clause 3 (1997) modified]33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 300 356-18 Version 4.1.2SIST EN 300 356-18 V4.1.2:2004en01-april-2004SIST EN 300 356-18 V4.1.2:2004SLOVENSKI
STANDARD
ETSIEN300356-18V4.1.2(2001-07)EuropeanStandard(Telecommunicationsseries)IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7(SS7);ISDNUserPart(ISUP)version4fortheinternationalinterface;Part18:CompletionofCallstoBusySubscriber(CCBS)supplementaryservice[ITU-TRecommendationQ.733,clause3(1997)modified]SIST EN 300 356-18 V4.1.2:2004
ETSIETSIEN300356-18V4.1.2(2001-07)2ReferenceREN/SPAN-01082-18KeywordsISDN,ISUP,SS7,supplementaryservice,CCBS,endorsementETSI650RoutedesLuciolesF-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.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 300 356-18 V4.1.2:2004
ETSIETSIEN300356-18V4.1.2(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).Thepresentdocumentispart18ofamulti-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 300 356-18 V4.1.2:2004
ETSIETSIEN300356-18V4.1.2(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)neededtosupporttheCompletionofCallstoBusySubscriber(CCBS)supplementaryservice.Thestage1andstage2aspectsaredetailedinETS300357[5]andETS300358[6],respectively.NationaltranspositiondatesDateofadoptionofthisEN:13July2001Dateofl
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