SIST EN 300 356-2 V4.2.1:2004

• Abstract:

  To align with the ITU version which has been amended with a change on sub paragraph numbers.

• 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 300 356-2 V4.2.1 (2002-07) - Integrated Services Digital Network (ISDN); Signalling System No. 7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 2: ISDN supplementary service [ITU-T Recommendation Q.730 (1999) modified]

SIST EN 300 356-2 V4.2.1:2004 is the SIST adoption of ETSI EN 300 356-2 V4.2.1 for Integrated Services Digital Network (ISDN) signalling over Signalling System No. 7 (SS7). It specifies the common ISDN User Part (ISUP) version 4 procedures for the international interface, with a focus on ISDN supplementary services for network operators and equipment implementers.

What does SIST EN 300 356-2 V4.2.1:2004 specify?

SIST EN 300 356-2 V4.2.1:2004 modifies ITU-T Recommendation Q.730 (1999) for use on the international ISDN interface. It is organized into clauses 1 to 13, with informative Annex A, informative Annex B, and informative Appendix II.

Annex / appendix	What it covers
Annex A	Signalling flows
Annex B	Interworking aspects
Appendix II	A network option, presented as informative material

The document is part 2 of a multi-part ISUP version 4 family. The foreword links it to the other parts for basic services, individual supplementary services, and conformance testing material.

What are the key requirements of SIST EN 300 356-2 V4.2.1:2004?

The document sets the common signalling basis for supplementary services in pan-European ISDN over SS7. In practice, it is the reference for how international interconnection should handle service-related signalling.

Service scope and implementation rules

• The scope covers procedures shared by multiple supplementary services on the international ISUP interface. In practice, engineers use it to keep service behavior consistent across international exchanges.
• The scope keeps the focus on the international interface, while leaving additional protocol requirements for non-ISDN delivery and for the national signalling interface to other specifications. In practice, this means local-network profiles still need their own rules.
• The scope retains the functions, formats, codes, and actions at originating and destination local exchanges. In practice, switch and gateway implementations still have to support those exchange-side behaviors, not just the interconnect link.
• Formats, codes, and procedures marked for national use are included for information on the international interface. If they are supported in a national or operator network, they should be supported in that form.
• Items marked Not Required do not have to be supported. In practice, this lets implementers separate mandatory interworking behavior from optional features.
• If a national signalling system behaves differently, the international gateway exchange must support both the national and the international network. In practice, gateways need translation or dual-behavior handling.

References and document structure

• The reference-replacement table maps older ITU-T clauses to companion EN 300 356 parts. In practice, readers must follow the EN 300 356 family for the modified clauses, not the original clause numbers alone.
• Clause 10 gives the agreed outline for a supplementary-service document that does not endorse an ITU-T Recommendation. It lists the expected sections for scope, references, definitions, operational requirements, coding, states, signalling procedures, interactions, parameter values, and dynamic description.

What terms does SIST EN 300 356-2 V4.2.1:2004 define?

• Integrated Services Digital Network (ISDN) - the digital network environment for which the supplementary-service procedures are written.
• Signalling System No. 7 (SS7) - the signalling system used to exchange control information between network nodes.
• ISDN User Part (ISUP) - the SS7 part that carries call control and related service signalling for ISDN interconnection.
• Protocol Implementation Conformance Statement (PICS) - a proforma used to state what a specific implementation supports.
• Test Suite Structure and Test Purposes (TSS&TP) - the test specification framework that sets out the structure and intent of tests.
• Abstract Test Suite (ATS) - the test suite used as the basis for formal conformance testing.
• Partial Protocol Implementation eXtra Information for Testing (PIXIT) - implementation-specific information needed to run or adapt tests.

Who uses SIST EN 300 356-2 V4.2.1:2004?

ISDN and SS7 network operators use this standard when they configure international supplementary-service support on local exchanges and gateway exchanges. Switch, signalling, and gateway vendors use it to align message handling, state behavior, and interworking.

Conformance test labs and protocol engineers use the companion PICS, TSS&TP, ATS, and PIXIT parts to prepare and run supplementary-service testing. Quality managers and buyers use it to check whether an implementation claims support for the right ISDN supplementary services and the right interworking scope.

What changed in SIST EN 300 356-2 V4.2.1:2004 from the previous edition?

The document history shows earlier publications of the same part, leading to V4.2.1. The endorsed text says it aligns with the ITU version after a change in subparagraph numbering, and it applies sidebar, underline, and strike-out marking to show modified text.

It also adds the phrase Not Required in the relevant clauses and provides the document-format outline in clause 10 for supplementary-service standards that are not simple endorsements of an ITU-T Recommendation.

Which standards are used with SIST EN 300 356-2 V4.2.1:2004?

Reference	What it contributes
ITU-T Recommendation I.130	Method for characterizing telecommunication services supported by an ISDN and network capabilities of an ISDN
ETS 300 121	ISUP version 1 for international ISDN interconnections
EN 300 356-1	Basic services part of the same ISUP version 4 family
EN 300 356-3 to EN 300 356-20	The companion parts for the named supplementary services such as CLIP, CLIR, COLP, COLR, TP, UUS, CUG, SUB, MCID, CONF, ECT, Diversion, HOLD, CW, CCBS, 3PTY, and CCNR

The foreword also places EN 300 356-31 to EN 300 356-36 in the same family for PICS, TSS&TP, ATS, and PIXIT material for basic and supplementary services.

What does the SIST EN 300 356-2 V4.2.1:2004 document contain?

The document contains the endorsed text of ITU-T Recommendation Q.730 with ETSI modifications identified by sidebars and text markup. It also includes a table that replaces specific ITU-T clause references with the matching EN 300 356 companion parts.

Clause 10 gives the standard section-by-section layout for related supplementary-service documents. Annex A provides signalling flows for design and review work, while Annex B covers interworking aspects used in implementation analysis. Appendix II is marked as informative and describes a network option.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.MHQR@Integrated Services Digital Network (ISDN); Signalling System No. 7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 2: ISDN supplementary service [ITU-T Recommendation Q.730 (1999) modified]33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 300 356-2 Version 4.2.1SIST EN 300 356-2 V4.2.1:2004en01-april-2004SIST EN 300 356-2 V4.2.1:2004SLOVENSKI
STANDARD
ETSI ETSI EN 300 356-2 V4.2.1 (2002-07) 2
Reference REN/SPAN-130293 Keywords endorsement, ISDN, ISUP, SS7, supplementary service ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: [e-mail] Copyright Notification No 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 2002. All rights reserved.
DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. SIST EN 300 356-2 V4.2.1:2004

ETSI ETSI EN 300 356-2 V4.2.1 (2002-07) 3
Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Services and Protocols for Advanced Networks (SPAN). The present document is part 2 of a multi-part deliverable covering the ISDN User Part (ISUP) version 4 for the international interface, as identified below: Part 1: "Basic services [ITU-T Recommendations Q.761 to Q.764 (1999) modified]"; Part 2: "ISDN supplementary service [ITU-T Recommendation Q.730 (1999) modified]"; Part 3: "Calling Line Identification Presentation (CLIP) supplementary service [ITU-T Recommendation Q.731, clause 3 (1993) modified]"; Part 4: "Calling Line Identification Restriction (CLIR) supplementary service [ITU-T Recommendation Q.731, clause 4 (1993) modified]"; Part 5: "Connected Line Identification Presentation (COLP) supplementary service [ITU-T Recommendation Q.731, clause 5 (1993) modified]"; Part 6: "Connected Line Identification Restriction (COLR) supplementary service [ITU-T Recommendation Q.731, clause 6 (1993) modified]"; Part 7: "Terminal Portability (TP) supplementary service [ITU-T Recommendation Q.733, clause 4 (1993) modified]"; Part 8: "User-to-User Signalling (UUS) supplementary service [ITU-T Recommendation Q.737, clause 1 (1997) modified]"; Part 9: "Closed User Group (CUG) supplementary service [ITU-T Recommendation Q.735, clause 1 (1993) modified]"; Part 10: "Subaddressing (SUB) supplementary service [ITU-T Recommendation Q.731, clause 8 (1992) modified]"; Part 11: "Malicious Call Identification (MCID) supplementary service [ITU-T Recommendation Q.731, clause 7 (1997) modified]"; Part 12: "Conference Call, add-on (CONF) supplementary service [ITU-T Recommendation Q.734, clause 1 (1993) and implementors guide (1998) modified]"; Part 14: "Explicit Call Transfer (ECT) supplementary service [ITU-T Recommendation Q.732, clause 7 (1996) and implementors guide (1998) modified]"; Part 15: "Diversion supplementary service [ITU-T Recommendation Q.732, clauses 2 to 5 (1999) modified]"; Part 16: "Call Hold (HOLD) supplementary service [ITU-T Recommendation Q.733, clause 2 (1993) modified]"; Part 17: "Call Waiting (CW) supplementary service [ITU-T Recommendation Q.733, clause 1 (1992) modified]"; SIST EN 300 356-2 V4.2.1:2004

ETSI ETSI EN 300 356-2 V4.2.1 (2002-07) 4
Part 18: "Completion of Calls to Busy Subscriber (CCBS) supplementary service [ITU-T Recommendation Q.733, clause 3 (1997) modified]"; Part 19: "Three-Party (3PTY) supplementary service [ITU-T Recommendation Q.734, clause 2 (1996) and implementors guide (1998) modified]"; Part 20: "Completion of Calls on No Reply (CCNR) supplementary service [ITU-T Recommendation Q.733, clause 5 (1999) modified]"; Part 21: "Anonymous Call Rejection (ACR) supplementary service [ITU-T Recommendation Q.731, clause 4 (1993)]"; 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 supplementary services"; 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".
National transposition dates Date of adoption of this EN: 19 July 2002 Date of latest announcement of this EN (doa): 31 October 2002 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
30 April 2003 Date of withdrawal of any conflicting National Standard (dow): 30 April 2003
Endorsement notice The elements of ITU-T Recommendation Q.730 (1999) apply, with the following modifications. NOTE: New or modified text is indicated using sidebars. In addition, underlining and/or strike-out are used to highlight detailed modifications where necessary. SIST EN 300 356-2 V4.2.1:2004

ETSI ETSI EN 300 356-2 V4.2.1 (2002-07) 5
Global modifications to ITU-T Recommendation Q.730 Replace the two clauses "Scope" and "References" with the following two clauses (Scope and References). Scope The present document specifies procedures that are common to multiple supplementary services defined for the pan-European Integrated Services Digital Network (ISDN) as provided by the European public telecommunications operators by means of the Signalling System No.7 protocol for the ISDN User Part (ISUP). The present document identifies the protocol procedures and switching functions needed to support telecommunication services (see ITU-T Recommendation I.130 [1]). The present document does not specify the additional protocol requirements where the service is provided to the user via a 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, formats and 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 international interface specification. If these items so marked are supported within a national network and operator's network, then it is proposed that they shall be supported in this manner. Items in the present document marked "Not Required" are not required to be supported. NOTE: In the case where a national signalling system behaves differently, the international gateway exchange is to support both the concerned national and international network. References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. • References are either specific (identified by date of publication and/or edition number or version number) or non-specific. • For a specific reference, subsequent revisions do not apply. • For a non-specific reference, the latest version applies. [1] ITU-T Recommendation I.130 (1988): "Method for the characterization of telecommunication services supported by an ISDN and network capabilities of an ISDN". [2] ETSI ETS 300 121 (Edition 1) (1992): "Integrated Services Digital Network (ISDN); Application of the ISDN User Part (ISUP) of CCITT Signalling System No.7 for international ISDN interconnections (ISUP version 1)". [3] ETSI EN 300 356-1: "Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 1: Basic services [ITU-T Recommendations Q.761 to Q.764 (1
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