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

SIST EN 300 356-7 V3.1.3:2003 is the Slovenian adoption of ETSI EN 300 356-7 Version 3.1.3 for Integrated Services Digital Network (ISDN) signalling. It specifies the stage 3 protocol procedures and switching functions for the Terminal Portability (TP) supplementary service on the international Signalling System No.7 (SS7) ISDN User Part (ISUP) interface. Network operators, switch and gateway vendors, and test teams use it to implement and verify how TP is handled during active calls.

What does SIST EN 300 356-7 V3.1.3:2003 specify?

SIST EN 300 356-7 V3.1.3:2003 specifies the stage 3 of the Terminal Portability (TP) supplementary service for the pan-European ISDN as provided over the SS7 ISUP international interface. In practical terms, it tells implementers how the signalling and switching behavior should work when a user moves a terminal or moves an active call within one basic access.

The document is part 7 of the EN 300 356 multi-part series. It is organized as a modified version of ITU-T Recommendation Q.733, clause 4, with added scope and normative references, amended subclauses, and Annex ZA.

The scope is focused on the international interconnection. It keeps the message formats, codes, and exchange actions needed at originating and destination local exchanges, while treating nationally marked items as informative for the international interface view.

What are the key requirements of SIST EN 300 356-7 V3.1.3:2003?

The TP supplementary service allows a user to move a terminal from one socket to another within one basic access during the active state of a call. It also allows a call to be moved from one terminal to another terminal within one basic access during the active call. For implementers, this means the service must support mid-call relocation without treating it as a new call.

The service applies to interactive circuit-switched telecommunication services that require human attendance, such as telephony and videotelephony. In practice, the service design and testing need to fit real-time human call handling, not automated data-only use cases.

Gateway behavior and network interworking

When TP is supported in the succeeding national network, the outgoing international gateway exchange acts like a transit exchange. This tells operators and switch vendors that the gateway should pass the relevant TP-related signalling onward in the normal transit role.

When TP is not supported in the succeeding national network, the outgoing international gateway exchange discards the Suspend and Resume messages received from the international network and gives no notification. The same discard-with-no-notification behavior applies when the incoming international gateway exchange receives these messages for a national network that does not support TP.

Suspend and Resume handling

Notification to the public network that a call was suspended or resumed in a private network is carried in the generic notification parameter of the Call progress message. No Suspend/Resume messages are sent, and no related timer is started. The event indicator is coded as “progress” in both cases. This matters because it fixes the visible signalling behavior and avoids treating the event as a separate suspend/resume procedure on the public side.

Compatibility coding

Annex ZA gives recommended coding for compatibility information. It identifies the parameter handling for the generic notification parameter and the instruction indicators used for transit interpretation, release handling, notification, discarding of messages or parameters, pass-on not possible handling, and broadband/narrowband interworking. In practice, this is the part a signalling engineer checks when aligning interworking behavior between exchanges.

What terms does SIST EN 300 356-7 V3.1.3:2003 define?

• ISDN - Integrated Services Digital Network, the network environment in which this supplementary service is specified.
• ISUP - ISDN User Part, the SS7 signalling part used for the international interface.
• SS7 - Signalling System No.7, the signalling system used to carry ISUP procedures.
• TP - Terminal Portability, the supplementary service that allows terminal or call movement within one basic access during an active call.
• DSS1 - Digital Subscriber Signalling System No. one, referenced for the TP protocol and signalling network layer.
• Call progress message - The signalling message used here to carry the generic notification parameter for suspend/resume notification.
• generic notification parameter - The parameter used to report suspension or resumption information across the public network boundary.

Who uses SIST EN 300 356-7 V3.1.3:2003?

SIST EN 300 356-7 V3.1.3:2003 is used by ISDN network operators, international gateway exchange designers, signalling protocol implementers, and test laboratories. It is relevant to teams working on switching, interworking, conformance testing, and service support for TP in international SS7/ISUP environments.

Which standards are used with SIST EN 300 356-7 V3.1.3:2003?

Reference	What it contributes
CCITT Recommendation I.130	The three-stage method used to describe telecommunication services.
ETS 300 053	TP service description used for the stage 1 view.
ETS 300 054	TP functional capabilities and information flows used for the stage 2 view.
ETS 300 055-1	TP DSS1 protocol specification referenced for national-side protocol mapping.
ETS 300 121	ISUP version 1 reference for international ISDN interconnections.
EN 300 356-1	Basic services part of ISUP version 3, including Q.761 to Q.764 as modified.
EN 300 356-2	ISDN supplementary services part of ISUP version 3, including Q.730 as modified.
EN 300 403-1	DSS1 signalling network layer protocol specification used in the reference replacements.

What does the SIST EN 300 356-7 V3.1.3:2003 document contain?

The document contains the modified text of ITU-T Recommendation Q.733, clause 4, including an inserted scope and normative references section. It also contains a reference-replacement table that maps several ITU-T references to ETSI documents used in this part of the series.

The body includes subclause updates for suspend/resume handling and gateway behavior in national and international interworking cases. Annex ZA provides informative coding guidance for compatibility information, including the handling of instruction indicators for transit, release, notification, discard, pass-on, and interworking behavior.

The foreword also places this part within the full EN 300 356 series, which covers basic services, supplementary services, and the related PICS, TSS&TP, ATS, and PIXIT material for testing and conformance work.

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 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 3.1.3SIST EN 300 356-7 V3.1.3:2003en01-december-2003SIST EN 300 356-7 V3.1.3:2003SLOVENSKI
STANDARD
EN 300 356-7 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 7: Terminal Portability (TP)supplementary service[ITU-T Recommendation Q.733, clause 4 (1993), modified]SIST EN 300 356-7 V3.1.3:2003

ETSIEN 300 356-7 V3.1.3 (1998-08)2ReferenceREN/SPS-01039-7 (3apr1ie0.PDF)KeywordsISDN, ISUP, SS7, supplementary service, TPETSIPostal 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 300 356-7 V3.1.3:2003

ETSIEN 300 356-7 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 7 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 300 356-7 V3.1.3:2003

ETSIEN 300 356-7 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 Terminal Portability (TP) supplementary service. The stage 1 and stage 2 aspects are detailed inETS 300 053 and ETS 300 054, 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 4 (1993), 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 300 356-7 V3.1.3:2003

ETSIEN 300 356-7 V3.1.3 (1998-08)5Global modifications to ITU-T Recommendation Q.733,clause 4Insert the following two clauses (Scope and Normative references) at the start of clause 4:ScopeThis seventh part of EN 300 356 specifies the stage three of the Terminal Portability (TP) supplementary service for thepan-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 teleco
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