SIST EN 300 092-1 V1.2.4:2003

• Abstract:

  Update references from ETS 300 102-1 and associated I-ETSs to ETS 300 403.

• 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 300 092-1 V1.2.4 (1998-06) - Integrated Services Digital Network (ISDN); Calling Line Identification Presentation (CLIP) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification

SIST EN 300 092-1 V1.2.4:2003 is the Slovenian adoption of ETSI EN 300 092-1 V1.2.4, the standard for the Integrated Services Digital Network (ISDN) Calling Line Identification Presentation (CLIP) supplementary service using the Digital Subscriber Signalling System No. one (DSS1) protocol. It specifies the stage 3 protocol procedures and switching functions for carrying the calling party’s identification to the called user at the T reference point or coincident S and T reference point. The standard is written for public ISDN access, private ISDN access, and the equipment that has to send, receive, or process CLIP information.

What does SIST EN 300 092-1 V1.2.4:2003 specify?

SIST EN 300 092-1 V1.2.4:2003 specifies the DSS1 protocol for CLIP in ISDN, with the focus on how the network and user side handle calling line identity during basic call setup. It also covers protocol requirements for a private ISDN connected at the T reference point, and it frames CLIP as a stage 3 service description.

The document is organized into 14 clauses and 5 annexes. The core clauses cover scope, references, definitions, abbreviations, service description, operational requirements, coding, state definitions, signalling procedures, interworking, interaction with other networks and supplementary services, timers, and SDLs.

Annex	What it covers
Annex A	Informative signalling flows for CLIP with basic call control
Annex B	Normative option for delivering two Calling party number information elements
Annex C	Informative terminal interchangeability between public and private ISDNs
Annex D	Informative changes with respect to the previous ETS 300 092-1
Annex E	Informative bibliography

What are the key requirements of SIST EN 300 092-1 V1.2.4:2003?

• Clause 6.2 - originating network handling: The calling number and subaddress information are inserted into the SETUP message as part of basic call procedures. In practice, the originating network has to decide whether to pass the user-provided number, complete it, or replace it with the default network number.

• Clause 6.2 - screening of the calling number: If the calling user provides a number, the network verifies it against the numbers allocated to that user, unless a special arrangement applies. This matters because it determines whether the caller identity is treated as verified, passed through, or replaced.

• Clause 7 - coding of information elements: The service uses the Calling party number information element and the Calling party subaddress information element defined in EN 300 403-1. For implementers, this means CLIP depends on the same basic call coding used for circuit-mode ISDN calls.

• Clause 9.2 and 9.3 - originating user and originating exchange rules: The caller can send a complete number or a partial number, and the network must handle the numbering plan identifier, type of number, and screening indicator accordingly. This is the part that equipment vendors have to match when building terminals and exchanges.

• Clause 9.4 - special arrangement cases: When a special arrangement applies, the network accepts caller numbers without screening and forwards the number with the appropriate indicators. In practice, operators use this for customer arrangements where the public network does not verify the caller number.

• Clause 9.5 - destination network behaviour: If the called user subscribes to CLIP and presentation is allowed, the network passes the calling number and, if available, the calling subaddress. If presentation is restricted or the number is unavailable, the network sends a coded indication instead of the full number.

• Clause 10 and Clause 11 - interworking: The same procedures apply to private ISDNs, and the standard also gives handling options for calls arriving from non-ISDN networks. This is important where a public ISDN has to preserve caller identity across mixed network paths.

• Clause 12 and Clause 13 - service interactions and timers: Interactions with other supplementary services are taken from EN 300 195-1, and no specific timers are required. For implementation, that simplifies time-related conformance work but keeps service interaction dependent on the companion standard.

What terms does SIST EN 300 092-1 V1.2.4:2003 define?

• Integrated Services Digital Network (ISDN) - The digital network environment in which the service operates.
• Calling Line Identification Presentation (CLIP) - The supplementary service that presents the calling user’s identity to the called user.
• Digital Subscriber Signalling System No. one (DSS1) - The signalling protocol used at the user-network interface.
• Served user - The ISDN subscriber who receives the presented calling line information.
• Calling user - The user who originates the call toward the served user.
• Default number - The agreed network-side number associated with the calling access when the user does not supply a usable number.
• Special arrangement - An agreement that allows customer-supplied calling party numbers to bypass public ISDN screening.

Who uses SIST EN 300 092-1 V1.2.4:2003?

SIST EN 300 092-1 V1.2.4:2003 is used by public ISDN operators, private ISDN providers, and manufacturers of ISDN terminals and exchanges. It is also relevant to test laboratories and conformance teams because the series includes PICS, TSS&TP, ATS, and PIXIT parts.

In practice, network engineers use it to implement call setup and identity presentation, quality managers use it to check protocol conformance, and buyers use it to confirm that terminal or network equipment supports CLIP on the intended ISDN interface.

What changed in SIST EN 300 092-1 V1.2.4:2003 from the previous edition?

• The document was converted to EN layout.
• References to ETS 300 102 were replaced with EN 300 403.
• Non-specific references to basic standards were updated so they point to the latest version.

Which standards are used with SIST EN 300 092-1 V1.2.4:2003?

Reference	What it contributes
CCITT Recommendation I.411	Reference configurations for ISDN user-network interfaces
CCITT Recommendation I.130	Method for characterising telecommunications services supported by ISDN
CCITT Recommendation I.112	ISDN vocabulary and core definitions
CCITT Recommendation E.164	ISDN number structure and numbering plan
CCITT Recommendation E.163	International telephone numbering plan reference
EN 300 403-1	Basic call control signalling network layer used by CLIP
EN 300 403-2	SDL diagrams for the basic call signalling layer
EN 300 195-1	Supplementary service interaction rules
ETS 300 089	CLIP service description and provision/withdrawal context
EN 300 093-1	CLIR behaviour used when presentation is restricted
CCITT Recommendation Z.100	SDL notation used for the dynamic description

The CLIP standard is part of a six-part series. Part 1 gives the protocol specification, parts 2, 3, 4, 5, and 6 cover the PICS proforma, test suite structures, ATS, and partial PIXIT material for user and network conformance work.

What does the SIST EN 300 092-1 V1.2.4:2003 document contain?

The document contains the protocol rules, coding rules, and signalling procedures needed to implement CLIP in DSS1-based ISDN. It also includes two summary tables at the originating network side and two SDL figures that show the dynamic behaviour for originating and destination processing.

Annex A gives signalling flows, Annex B defines a network option for sending two Calling party number information elements, and Annex C explains terminal interchangeability between public and private ISDNs. Annex D records the changes from the previous ETS 300 092-1, and Annex E lists bibliography items used in the standard.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.WRNRODIntegrated Services Digital Network (ISDN); Calling Line Identification Presentation (CLIP) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 300 092-1 Version 1.2.4SIST EN 300 092-1 V1.2.4:2003en01-december-2003SIST EN 300 092-1 V1.2.4:2003SLOVENSKI
STANDARD
EN 300 092-1 V1.2.4 (1998-06)European Standard (Telecommunications series)Integrated Services Digital Network (ISDN);Calling Line Identification Presentation (CLIP)supplementary service;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 1: Protocol specificationSIST EN 300 092-1 V1.2.4:2003

ETSIEN 300 092-1 V1.2.4 (1998-06)2ReferenceREN/SPS-05145-C-1 (0uo90iqo.PDF)KeywordsISDN, CLIP, DSS1, supplementary serviceETSIPostal 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 300 092-1 V1.2.4:2003

ETSIEN 300 092-1 V1.2.4 (1998-06)3ContentsIntellectual Property Rights.5Foreword.51Scope.72Normative references.73Definitions.84Abbreviations.95Description.96Operational requirements.96.1Provision and withdrawal.96.2Requirements on the originating network side.96.3Requirements on the destination network side.97Coding requirements.98State definitions.109Signalling procedures at the coincident S and T reference point.109.1Activation, deactivation and registration.109.2Actions at the originating user.109.2.1Normal operation.109.2.2Exceptional procedures.109.3Actions at the originating local exchange if a special arrangement does not apply.109.3.1Normal operation.109.3.2Exceptional procedures.129.4Actions at the originating local exchange if a special arrangement applies.129.4.1Normal operation.129.4.2Exceptional procedures.139.5Actions at the destination local exchange.139.5.1Normal operation.139.5.2Exceptional procedures.1410Procedures for interworking with private ISDNs.1411Interaction with other networks.1412Interaction with other supplementary services.1513Parameter values (timers).1514Dynamic description (SDLs).16Annex A (informative):Signalling flows.18Annex B (normative):Two Calling party number information elements delivery option.19B.1Scope.19B.2Additional procedures at the destination network side.19B.2.1Normal operation.19B.2.2Exceptional procedures.19SIST EN 300 092-1 V1.2.4:2003

ETSIEN 300 092-1 V1.2.4 (1998-06)4Annex C (informative):Terminal interchangeability between public and private ISDNs.20Annex D (informative):Changes with respect to the previous ETS 300 092-1.21Annex E (informative):Bibliography.22History.23SIST EN 300 092-1 V1.2.4:2003

ETSIEN 300 092-1 V1.2.4 (1998-06)5Intellectual 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 1 of a multi-part standard covering the Digital Subscriber Signalling System No. one(DSS1) protocol specification for the Integrated Services Digital Network (ISDN) Calling Line IdentificationPresentation (CLIP) supplementary service, as described below:Part 1:"Protocol specification";Part 2:"Protocol Implementation Conformance Statement (PICS) proforma specification";Part 3:"Test Suite Structure and Test Purposes (TSS&TP) specification for the user";Part 4:"Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)proforma specification for the user";Part 5:"Test Suite Structure and Test Purposes (TSS&TP) specification for the network";Part 6:"Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)proforma specification for the network".In accordance with CCITT Recommendation I.130, the following three level structure is used to describe thesupplementary telecommunications 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 standpoint;-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 Calling Line Identification Presentation (CLIP) supplementary service. The stage 1 and stage 2 aspects aredetailed in ETS 300 089 and ETS 300 091, respectively.The present version updates the references to the basic call specifications and incorporates all amendments to earlierversions.SIST EN 300 092-1 V1.2.4:2003

ETSIEN 300 092-1 V1.2.4 (1998-06)6National transposition datesDate of adoption of this EN:19 June 1998Date of latest announcement of this EN (doa):30 September 1998Date of latest publication of new National Standardor endorsement of this EN (dop/e):31 March 1999Date of withdrawal of any conflicting National Standard (dow):31 March 1999SIST EN 300 092-1 V1.2.4:2003

ETSIEN 300 092-1 V1.2.4 (1998-06)71ScopeThis first part of EN 300 092 specifies the stage three of the Calling Line Identification Presentation (CLIP)supplementary service for the pan-European Integrated Services Digital Network (ISDN) as provided by Europeanpublic telecommunications operators at the T reference point or coincident S and T reference point (as defined inCCITT Recommendation I.411 [1]) by means of the Digital Subscriber Signalling System No. one (DSS1) protocol.Stage three identifies the protocol procedures and switching functions needed to support a telecommunication service(see CCITT Recommendation I.130 [2]).In addition the present document specifies the protocol requirements at the T reference point where the service isprovided to the user via a private ISDN.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 CLIP supplementary service provides the called party with the possibility to receive identification of the callingparty, and is applicable to all telecommunication services.Further parts of the present document specify the method of testing required to identify conformance to the presentdocument.The present document is applicable to equipment supporting the CLIP supplementary service, to be attached at eitherside of a T reference point or coincident S and T reference point when used as an access to the public ISDN.2Normative referencesReferences may be made to:a)specific versions of publications (identified by date of publication, edition number, version number, etc.), inwhich case, subsequent revisions to the referenced document do not apply; orb)all versions up to and including the identified version (identified by "up to and including" before the versionidentity); orc)all versions subsequent to and including the identified version (identified by "onwards" following the versionidentity); ord)publications without mention of a specific version, in which case the latest version applies.A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the samenumber.[1]CCITT Recommendation I.411 (1988): "ISDN user-network interfaces Reference configurations".[2]CCITT Recommendation I.130 (1988): "Method for characterisation of telecommunicationsservices supported by an ISDN and network capabilities of an ISDN".[3]CCITT Recommendation I.112: "Vocabulary of terms for ISDNs".[4]CCITT Recommendation E.164: "Numbering plan for the ISDN era".[5]CCITT Recommendation E.163 (1988): "Numbering plan for the international telephone service".[6]EN 300 403-1: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling SystemNo. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control; Part 1:Protocol specification [ITU-T Recommendation Q.931 (1993), modified]".[7]EN 300 195-1: "Integrated Services Digital Network (ISDN); Supplementary service interactions;Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification".[8]CCITT Recommendation I.210: "Principles of telecommunication services supported by an ISDNand the means to describe them".SIST EN 300 092-1 V1.2.4:2003

ETSIEN 300 092-1 V1.2.4 (1998-06)8[9]ETS 300 089 (1992): "Integrated Services Digital Network (ISDN); Calling Line IdentificationPresentation (CLIP) supplementary service; Service description".[10]EN 300 403-2: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling SystemNo. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control; Part 2:Specification and Description Language (SDL) diagrams".[11]EN 300 093-1: "Integrated Services Digital Network (ISDN); Calling Line IdentificationRestriction (CLIR) supplementary service; Digital Subscriber Signalling System No. one (DSS1)protocol; Part 1: Protocol specification".[12]CCITT Recommendation Z.100 (1988): "Functional Specification and Description Language(SDL)".3DefinitionsFor the purpose of the present document, the following definitions apply:Integrated Services Digital Network (ISDN): See CCITT Recommendation I.112 [3], definition 308.service; telecommunications service: See CCITT Recommendation I.112 [3], definition 201.supplementary service: See CCITT Recommendation I.210 [8], § 2.4.network: The DSS1 protocol entity at the network side of the user-network interface.user: The DSS1 protocol entity at the user side of the user-network interface.served user: The user of a particular ISDN number who has subscribed to the presentation of the calling lineidentification information in association with incoming calls. The served user is also known as the called user.calling user: The user that initiated an incoming call at the served user. The calling user need not have subscribed to theCLIP supplementary service.address: The ISDN number of the calling user, and a subaddress if provided by that user.ISDN number: A number conforming to the numbering plan and structure specified in CCITT RecommendationE.164 [4].subaddress: See CCITT Recommendation E.164 [4], § 11.2.calling subaddress: The subaddress of the calling user.calling number: The ISDN number of the calling user.international number: An ISDN number structured as specified in § 3.2 (the paragraphs relating to internationalnumber) of CCITT Recommendation E.164 [4].national number; national significant number: An ISDN number structured as specified in § 3.2 (in the paragraphsrelating to national significant number) of CCITT Recommendation E.164 [4].subscriber number: An ISDN number structured as specified in § 3.2 (the paragraphs relating to subscriber number) ofCCITT Recommendation E.164 [4].default number: An agreed ISDN number between the user, at the calling side, and the network provider.special arrangement: An agreement between a customer and a public network operator whereby customer suppliedcalling party numbers are not screened by the public ISDN.SIST EN 300 092-1 V1.2.4:2003

ETSIEN 300 092-1 V1.2.4 (1998-06)94AbbreviationsFor the purposes of the present document, the following abbreviations apply:CLIPCalling Line Identification PresentationCLIRCalling Line Identification RestrictionDSS1Digital Subscriber Signalling System No. oneISDNIntegrated Services Digital Network5DescriptionThe CLIP supplementary service is a supplementary service offered to the called user. It provides the calling user'sISDN number, possibly with the calling user's subaddress information, to the called user.The information provided to the called user shall consist of the ISDN number of the calling user in a form sufficient toallow the returning of the call (i.e. a subscriber number, a national number or an international number and optionally asubaddress if provided by the calling user).6Operational requirements6.1Provision and withdrawalSee ETS 300 089 [9], subclause 6.1.6.2Requirements on the originating network sideAll information pertaining to the CLIP supplementary service shall be inserted in the SETUP message sent as part of thebasic call procedures according to EN 300 403-1 [6], clause 5.In the case where no information is provided by the calling user (as part of the basic call procedures) the network shallprovide the default number associated with the access (in which the call was generated) in the originating localexchange.When the calling number information is provided by the calling user, the network can only verify that the number iswithin the set of numbers allocated to that user.Where a special arrangement exists with the calling user, no verification shall be performed.6.3Requirements on the destination network sideSee subclause 9.5.7Coding requirementsEN 300 403-1 [6], subclauses 4.5.10 and 4.5.11 give the coding for the calling party number and the calling partysubaddress information elements which are required to support this service.The purpose of the calling party number information element is to identify the origin of a call.The purpose of the calling party subaddress information element is to identify a subaddress associated with the origin ofthe call.SIST EN 300 092-1 V1.2.4:2003

ETSIEN 300 092-1 V1.2.4 (1998-06)108State definitionsNo specific state definitions are required.9Signalling procedures at the coincident S andT reference point9.1Activation, deactivation and registrationNot applicable.9.2Actions at the originating user9.2.1Normal operationThese procedures shall be provided as part of the basic service and the calling user need not have subscribed to theCLIP supplementary service.The numbering plan identifier, to be indicated within the calling party number information element, sent by the callinguser, shall be either "ISDN/telephony numbering plan (CCITT Recommendations E.164 [4] and E.163 [5])" or"unknown".NOTE:Either coding may be used and the treatment of both by the network is identical.Where the calling number included by the calling user is complete, the type of number to be indicated within the callingparty number information element, sent by the calling user, shall be one of the following:-"subscriber number", in the case where the complete subscriber number is sent;-"national number", in the case where the complete national number is sent;-"international number", in the case where the complete international number is sent.Where a partial calling number i
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