SIST EN 300 356-18 V3.1.3:2003

• Abstract:

  Additional generic procedures to those in basic call for use in this supplementary service.

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 300 356-18 V3.1.3 (1998-08) - Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 3 for the international interface; Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service [ITU-T Recommendation Q.733, clause 3 (1997), modified]

SIST EN 300 356-18 V3.1.3:2003 is the Slovenian adoption of an ETSI European Standard for the Integrated Services Digital Network (ISDN) User Part (ISUP) version 3 on the international interface. It specifies the stage 3 signalling procedures and switching functions for the Completion of Calls to Busy Subscriber (CCBS) supplementary service, so it is aimed at telecom operators and implementers working on SS7/ISUP-based ISDN networks.

What does SIST EN 300 356-18 V3.1.3:2003 specify?

SIST EN 300 356-18 V3.1.3:2003 specifies the stage three of CCBS for pan-European ISDN using the Signalling System No.7 (SS7) protocol for ISUP. Stage three is the protocol and switching layer: it tells implementers how the network behaves, not just what the user sees.

The scope is limited to the case where the service is provided to the user via an intermediate ISDN. The document also retains the message, signal, format and code definitions used at originating and destination local exchanges for the international interface, and it treats national-use markings as informative for that interface.

Charging aspects are outside the scope. The service described here lets user A complete a call to busy destination B later, without making a new call attempt when B becomes free, and it applies to all circuit-switched basic services.

What are the key requirements of SIST EN 300 356-18 V3.1.3:2003?

SIST EN 300 356-18 V3.1.3:2003 sets the additional procedures needed for CCBS beyond the basic call, and those procedures are the core of the document. In practice, this is the part engineers use when they need to make interworking and switching behaviour match between networks.

Stage 3 behaviour for CCBS

The document specifies the stage 3 aspects needed to support CCBS. That means it defines the signalling system protocols and switching functions that a network must use to carry the supplementary service through the international interface.

Where the service applies

SIST EN 300 356-18 V3.1.3:2003 applies when CCBS is delivered through an intermediate ISDN. It does not cover the additional requirements for delivery through a non-ISDN telecommunications network, so implementers should use it for ISDN-to-ISDN international interconnection.

Message, format and code handling

The document keeps the specification of functions, formats, codes and actions for originating and destination local exchanges. It also keeps items marked for national use, but only as informative material for the international interface specification. For practice, this means a national network that supports those items should support them in the same way.

Service effect

CCBS is defined as the mechanism that lets user A wait for a busy destination B to become free, then complete the call without a new call attempt. This is the operational goal the signalling procedures are built to support.

Normative base and replacements

The document replaces the referenced ITU-T Recommendation Q.733 clause 3 content with ETSI-modified text. Its reference mapping also points implementers to the ETSI-modified versions of Q.730, Q.761, Q.762, Q.763, Q.764 and Q.931, together with the ETSI parts for basic services and supplementary services.

Compatibility information

Annex ZA gives the coding of compatibility information for the CCSS parameter. In practical terms, this annex tells implementers how to encode the parameter and its instruction indicators so that intermediate exchanges handle the message correctly.

What terms does SIST EN 300 356-18 V3.1.3:2003 define?

• Completion of Calls to Busy Subscriber (CCBS) - A supplementary service that completes a call later when the originally busy destination becomes free.
• Integrated Services Digital Network (ISDN) - The digital network environment in which this CCBS stage 3 specification is used.
• ISDN User Part (ISUP) - The SS7 signalling part that carries call-control information for ISDN international interconnection.
• Signalling System No.7 (SS7) - The signalling system used for the protocol procedures covered by this standard.
• Stage 3 - The level that defines the signalling protocols and switching functions needed to implement the service.
• Circuit-switched basic services - The class of services to which CCBS applies in this document.
• Intermediate ISDN - The ISDN path through which the service is provided to the user in the covered case.

Who uses SIST EN 300 356-18 V3.1.3:2003?

SIST EN 300 356-18 V3.1.3:2003 is used by telecom operators, signalling engineers and switching engineers who implement or validate ISDN/SS7 interworking. It is also relevant to buyers and quality managers who need to check whether an ISUP implementation supports CCBS for international interface use. The foreword shows that it belongs to ETSI Technical Committee Signalling Protocols and Switching (SPS), so it sits in the operator-network and switching-implementation environment.

Which standards are used with SIST EN 300 356-18 V3.1.3:2003?

• CCITT Recommendation I.130 - Provides the three-stage method used to describe telecommunication services.
• ETS 300 357 - Gives the CCBS service description for stage 1.
• ETS 300 358 - Gives the CCBS functional capabilities and information flows for stage 2.
• EN 300 356-1 - Supplies the modified ISUP version 3 basic services reference used by this part.
• EN 300 356-2 - Supplies the modified ISUP version 3 supplementary services reference used by this part.
• ETS 300 121 - Provides the referenced ISUP version 1 international interconnection background.
• EN 300 403-1 - Provides the modified Q.931 signalling network layer reference used for circuit-mode basic call control.

What does the SIST EN 300 356-18 V3.1.3:2003 document contain?

SIST EN 300 356-18 V3.1.3:2003 contains the scope, normative references and the ETSI-endorsed modification text for ITU-T Recommendation Q.733 clause 3. It also contains a reference-replacement table that maps several ITU-T recommendations to their ETSI-modified equivalents. Annex ZA provides the coding of compatibility information for the CCSS parameter, including the instruction indicators used in the international interface specification.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.%6Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 3 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 3.1.3SIST EN 300 356-18 V3.1.3:2003en01-december-2003SIST EN 300 356-18 V3.1.3:2003SLOVENSKI
STANDARD
EN 300 356-18 V3.1.3 (1998-08)European Standard (Telecommunications series)Integrated Services Digital Network (ISDN);Signalling System No.7;ISDN User Part (ISUP) version 3 for the international interface;Part 18: Completion of Calls to Busy Subscriber (CCBS)supplementary service[ITU-T Recommendation Q.733, clause 3 (1997), modified]SIST EN 300 356-18 V3.1.3:2003

ETSIEN 300 356-18 V3.1.3 (1998-08)2ReferenceREN/SPS-01039-18 (3asi1ie0.PDF)KeywordsISDN, ISUP, SS7, supplementary service, CCBSETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: [phone]
Fax: [phone]Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/[e-mail]://www.etsi.frhttp://www.etsi.orgCopyright NotificationNo part may be reproduced except as authorized by written permission.The copyright and the foregoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1998.All rights reserved.SIST EN 300 356-18 V3.1.3:2003

ETSIEN 300 356-18 V3.1.3 (1998-08)3Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respectof ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on theETSI Web server (http://www.etsi.fr/ipr or http://www.etsi.org/ipr).Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guaranteecan be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by ETSI Technical Committee SignallingProtocols and Switching (SPS).The present document is part 18 of a multi-part EN covering the ISDN User Part (ISUP) version 3 for the internationalinterface, as identified below:Part 1:"Basic services";Part 2:"ISDN supplementary services";Part 3:"Calling Line Identification Presentation (CLIP) supplementary service";Part 4:"Calling Line Identification Restriction (CLIR) supplementary service";Part 5:"Connected Line Identification Presentation (COLP) supplementary service";Part 6:"Connected Line Identification Restriction (COLR) supplementary service";Part 7:"Terminal Portability (TP) supplementary service";Part 8:"User-to-User Signalling (UUS) supplementary service";Part 9:"Closed User Group (CUG) supplementary service";Part 10:"Subaddressing (SUB) supplementary service";Part 11:"Malicious Call Identification (MCID) supplementary service";Part 12:"Conference Call, add-on (CONF) supplementary service";Part 14:"Explicit Call Transfer (ECT) supplementary service";Part 15:"Diversion supplementary services";Part 16:"Call Hold (HOLD) supplementary service";Part 17:"Call Waiting (CW) supplementary service";Part 18:"Completion of Calls to Busy Subscriber (CCBS) supplementary service";Part 19:"Three party (3PTY) supplementary service".Part 20:"Completion of Calls on No Reply (CCNR) supplementary service";Part 31:"Protocol Implementation Conformance Statement (PICS) proforma specification for basic services"Part 32:"Test Suite Structure and Test Purposes (TSS&TP) specification for basic services"Part 33:"Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)proforma specification for basic services"Part 34:"Protocol Implementation Conformance Statement (PICS) proforma specification for supplementaryservices"Part 35:"Test Suite Structure and Test Purposes (TSS&TP) specification for supplementary services"Part 36:"Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)proforma specification for supplementary services"NOTE:Part 13 has not been issued.SIST EN 300 356-18 V3.1.3:2003

ETSIEN 300 356-18 V3.1.3 (1998-08)4In accordance with CCITT Recommendation I.130, the following three level structure is used to describe thesupplementary telecommunication services as provided by European public telecommunications operators under thepan-European Integrated Services Digital Network (ISDN):-Stage 1: is an overall service description, from the user's stand-point;-Stage 2: identifies the functional capabilities and information flows needed to support the service described instage 1; and-Stage 3: defines the signalling system protocols and switching functions needed to implement the servicedescribed in stage 1.The present document details the stage three aspects (signalling system protocols and switching functions) needed tosupport the Completion of Calls to Busy Subscriber (CCBS) supplementary service. The stage 1 and stage 2 aspects aredetailed in ETS 300 357 and ETS 300 358, respectively.National transposition datesDate of adoption of this EN:7 August 1998Date of latest announcement of this EN (doa):30 November 1998Date of latest publication of new National Standardor endorsement of this EN (dop/e):31 May 1999Date of withdrawal of any conflicting National Standard (dow):31 May 1999Endorsement noticeThe text of ITU-T Recommendation Q.733, clause 3 (1997), was approved by ETS
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