SIST EN 300 356-8 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 300 356-8 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 8: User-to-User Signalling (UUS) supplementary service [ITU-T Recommendation Q.737, clause 1 (1997), modified]

SIST EN 300 356-8 V3.1.3:2003 is the Slovenian adoption of the ETSI European Standard EN 300 356-8 Version 3.1.3. It covers Integrated Services Digital Network (ISDN) Signalling System No.7 (SS7) ISDN User Part (ISUP) version 3 for the international interface, specifically the User-to-User Signalling (UUS) supplementary service. The document specifies the stage 3 signalling procedures and switching functions used by ISDN network operators, gateway exchanges, and equipment implementers.

What does SIST EN 300 356-8 V3.1.3:2003 specify?

SIST EN 300 356-8 V3.1.3:2003 specifies the stage 3 aspects of the UUS supplementary service for the pan-European ISDN over the ISUP protocol. In practice, it tells network implementers how the service is handled at signalling level, especially at international interconnection points.

The scope is limited to the international interface. National signalling-interface details and extra protocol requirements for non-ISDN access are kept outside this part, so readers use it when they need the international ISUP behaviour for UUS.

The technical content is organized around modified clause 1 of ITU-T Recommendation Q.737, with inserted Scope and Normative references text, then focused changes to interworking, facility handling, and service interactions. The foreword also places the document in the EN 300 356 multi-part series for ISUP version 3.

What are the key requirements of SIST EN 300 356-8 V3.1.3:2003?

The document defines how UUS is carried as limited information exchanged between ISDN users over the signalling channel in association with a call. For implementers, this means the service is tied to call signalling rather than user traffic, so switches and gateways must process the user-to-user data as part of call control.

Clause 1 states that the stage 3 description covers protocol procedures and switching functions needed to support the service. This matters because it is the part used to implement the service in real exchanges, not just describe it to users.

A key part of the standard is the interworking behaviour in table 1-1/Q.737. It distinguishes cases such as non-SS7 networks, SS7 networks that are not ISUP or TUP, and networks that do not support the service, and it varies the response according to whether the request is implicit, non-essential, or essential. In practice, operators must ensure that the originating and transit exchanges either pass, discard, or reject UUI in the defined way.

The modified text also defines how a facility reject is signalled in some call-control situations. If the called user does not respond to the service request, the reject uses the meaning "requested facility not implemented"; other failure cases use "facility rejected" without diagnostics. That gives implementers a consistent way to report why the service request failed.

When a facility request for user-to-user service arrives while a call is suspended, the network returns a facility reject with the meaning "service 3 not provided". User-to-user messages received during suspension are discarded, so the exchange must not try to carry them through the suspended state.

Several subclauses are replaced with "No impact on ISUP" or redirected to EN 300 356-18 for interactions. For readers, that means some detailed interactions are handled elsewhere in the ISUP series and should be checked there when working on related supplementary services.

What terms does SIST EN 300 356-8 V3.1.3:2003 define?

• Integrated Services Digital Network (ISDN) - The network environment for which the supplementary service is specified, using digital signalling and call control.
• Signalling System No.7 (SS7) - The signalling system used for the international interface in this standard.
• ISDN User Part (ISUP) - The SS7 user part that carries ISDN call-control and supplementary-service signalling.
• User-to-User Signalling (UUS) - The supplementary service that lets an ISDN user send or receive limited information to or from another ISDN user during a call.
• User-to-User Information (UUI) - The information carried for the UUS service over the signalling channel.
• Facility reject - The signalling response used when a service request cannot be accepted in the current call state.
• International gateway exchange - The exchange that supports both the national and international network when the signalling behaviour differs between them.

Who uses SIST EN 300 356-8 V3.1.3:2003?

Telecom network operators use this standard when they configure international ISDN interconnection and service handling for UUS. Switch and gateway manufacturers use it to implement the signalling procedures in exchanges and network elements.

Test labs and conformance teams use it when checking interworking behaviour, facility rejection handling, and call-suspension handling. Quality managers and buyers use it to confirm that a product supports the UUS supplementary service at the ISUP stage 3 level.

Which standards are used with SIST EN 300 356-8 V3.1.3:2003?

• CCITT Recommendation I.130 - Gives the three-stage method used to describe telecommunication services.
• ETS 300 284 - Describes the UUS service from the user-service point of view.
• ETS 300 285 - Describes the functional capabilities and information flows for UUS.
• ETS 300 286-1 - Gives the DSS1 protocol for UUS.
• EN 300 356-1 - Provides the ISUP version 3 basic services background.
• EN 300 356-2 - Provides the ISUP version 3 supplementary services background.
• EN 300 356-18 - Covers interactions for Completion of Calls to Busy Subscriber (CCBS).
• EN 300 403-1 - Gives the modified Q.931 signalling network layer used for circuit-mode basic call control.
• ETS 300 121 - Provides the earlier ISUP version 1 reference used for some interworking comparisons.

What does the SIST EN 300 356-8 V3.1.3:2003 document contain?

The document contains the modified stage 3 text for UUS, including the inserted scope and normative references, the interworking table for different network combinations, and the changed subclauses on service rejection and call suspension. It also includes reference substitutions that map older ITU-T references to the ETS/EN documents used in this series.

The front matter records the ETSI origin, copyright notice, and intellectual property rights statement. The closing pages give the national transposition dates and publication history for the EN 300 356-8 version chain.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 3 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 3.1.3SIST EN 300 356-8 V3.1.3:2003en01-december-2003SIST EN 300 356-8 V3.1.3:2003SLOVENSKI
STANDARD
EN 300 356-8 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 8: User-to-User Signalling (UUS)supplementary service[ITU-T Recommendation Q.737, clause 1 (1997), modified]SIST EN 300 356-8 V3.1.3:2003

ETSIEN 300 356-8 V3.1.3 (1998-08)2ReferenceREN/SPS-01039-8 (3aq01ie0.PDF)KeywordsISDN, ISUP, SS7, supplementary service, UUSETSIPostal 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 300 356-8 V3.1.3:2003

ETSIEN 300 356-8 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 8 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 300 356-8 V3.1.3:2003

ETSIEN 300 356-8 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 User-to-User Signalling (UUS) supplementary service. The stage 1 and stage 2 aspects are detailed inETS 300 284 and ETS 300 285, 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.737, clause 1 (1997), was approved by ETSI as an EN with agreed modificationsas given below.NOTE:New or modified text is indicated using sidebars. In addition, underlining and/or strike-out are used tohighlight detailed modifications where necessary.SIST EN 300 356-8 V3.1.3:2003

ETSIEN 300 356-8 V3.1.3 (1998-08)5Global modifications to ITU-T Recommendation Q.737,clause 1Insert the following two clauses (Scope and Normative references) at the start of clause 1:ScopeThis eighth part of EN 300 356 specifies the stage three of the User-to-User Signalling (UUS) supplementary service forthe pan-European Integrated Services Digital Network (ISDN) as provided by the European public telecommunicationsoperators by means of the Signalling System No.7 protocol for the ISDN User Part (ISUP). Stage three identifies theprotocol procedures and switching functions needed to support a telecommunication service (seeCCITT Recommendation I.130 [1]).The present document does not specify the additional protocol requirements where the service is provided to the user viaa telecommunications network that is not an ISDN.The present document does not specify the additional protocol requirements for the national signalling interface.Although the present document applies only to the international interconnection, the specification of functions, formatsand codes of messages and signals, and actions performed at originating and destination local exchanges are retained.Formats, codes and procedures marked for national use are included for informative purposes for the internationalinterface specification. If these items so marked are supported within a national network and operator's network, then itis proposed that they shall be supported in this manner.NOTE:In the case where a national sig
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