ETSI EN 300 207-1 V1.2.5 (1998-10)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.VWRULWYHIntegrated Services Digital Network (ISDN); Diversion supplementary services; 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 300 207-1 Version 1.2.5SIST EN 300 207-1 V1.2.5:2003en01-december-2003SIST EN 300 207-1 V1.2.5:2003SLOVENSKI
STANDARD



SIST EN 300 207-1 V1.2.5:2003



EN 300 207-1 V1.2.5 (1998-10)European Standard (Telecommunications series)Integrated Services Digital Network (ISDN);Diversion supplementary services;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 1: Protocol specificationSIST EN 300 207-1 V1.2.5:2003



ETSIEN 300 207-1 V1.2.5 (1998-10)2ReferenceREN/SPS-05065-1 (1x090irc.PDF)KeywordsISDN, DSS1, supplementary service, CF, SCF,SCFB, SCFNR, SCFUETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/88Internetsecretariat@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 300 207-1 V1.2.5:2003



ETSIEN 300 207-1 V1.2.5 (1998-10)3ContentsIntellectual Property Rights.5Foreword.51Scope.72Normative references.83Definitions.94Abbreviations.115Description.116Operational requirements.126.1Provision and withdrawal.126.2Requirements on the calling user's network side.146.3Requirements on the served user's network side.146.4Requirements on the diverted-to user's network side.147Coding requirements.157.1Coding of the Facility information element components.157.2Coding of the information elements.217.2.1Coding of the Notification indicator information element.217.2.2Coding of the Redirecting number information element.227.2.3Coding of the Redirection number information element.228State definitions.239Signalling procedures at the coincident S and T reference point.249.1Activation, deactivation and interrogation.249.1.1Activation.249.1.1.1Normal operation for diversion services other than selective call forwarding service.249.1.1.2Exceptional procedures for diversion services other than selective call forwarding services.269.1.1.3Normal operation for the selective call forwarding services.279.1.1.4Exceptional procedures for the selective call forwarding services.289.1.2Deactivation.299.1.2.1Normal operation for diversion services other than selective call forwarding services.299.1.2.2Exceptional procedures for diversion services other than selective call forwarding services.309.1.2.3Normal operation for the selective call forwarding services.319.1.2.4Exceptional procedures for the selective call forwarding services.329.1.3Interrogation of the served user numbers.339.1.3.1Normal procedures.339.1.3.2Exceptional procedures.339.1.4Interrogation of a single or multiple instances of the supplementary service.349.1.4.1Normal operation for diversion services other than the selective call forwarding services.349.1.4.2Exceptional procedures for diversion services other than the selective call forwarding services.359.1.4.3Normal operations for selective call forwarding services.369.1.4.4Exceptional procedures for the selective call forwarding services.369.1.5Procedures for interrogation of a specific screening list.379.1.5.1Normal procedures.379.1.5.2Exceptional procedures.379.2Invocation and operation.389.2.1Collection and analysis of diversion information at the calling network.389.2.1.1Normal operation.389.2.1.2Exceptional procedures.389.2.2Notification of diversion to the calling user.389.2.2.1Normal operation.399.2.2.2Exceptional procedures.399.2.3Identification of the diverted-to user to the calling user.39SIST EN 300 207-1 V1.2.5:2003



ETSIEN 300 207-1 V1.2.5 (1998-10)49.2.3.1Normal operation.399.2.3.2Exceptional procedures.409.2.4Operation at the served user.409.2.4.1Procedures for the CFU supplementary service.409.2.4.1.1Normal operation.409.2.4.1.2Exceptional procedures.419.2.4.2Network Determined User Busy (NDUB) procedures for the CFB supplementary service.419.2.4.2.1Normal operation.419.2.4.2.2Exceptional procedures.429.2.4.3User Determined User Busy (UDUB) procedures for the CFB supplementary service.429.2.4.3.1Normal operation.429.2.4.3.2Exceptional procedures.439.2.4.4Procedures for the CFNR supplementary service.439.2.4.4.1Normal operation.439.2.4.4.2Exceptional procedures.449.2.4.5Procedures for the CD supplementary service.449.2.4.5.1Normal operation.449.2.4.5.2Exceptional procedures.459.2.4.6Procedures for the SCF supplementary service.469.2.5Operation at the diverted-to user.479.2.5.1Normal operation.479.2.5.2Exceptional procedures.479.3Reminder notification to the served user.489.3.1Normal operation.489.3.2Exceptional procedures.4810Procedures for interworking with private ISDNs.4810.1Procedures where a call from the public ISDN is diverted within or beyond the private ISDN.4810.1.1Normal operation.4810.1.2Exceptional procedures.4910.2Presentation of a diverted call from a public ISDN to the private ISDN.4910.2.1Normal operation.4910.2.2Exceptional procedures.4910.3Procedures where a call from the private ISDN is diverted within or beyond the public ISDN.5010.4Presentation of a diverted call from a private ISDN to the public ISDN.5010.4.1Normal operation.5010.4.2Exceptional procedures.5010.5Procedures where a call from the public ISDN is diverted within or beyond the private ISDN and partialrerouteing takes place in the public ISDN.5110.5.1Normal operation.5110.5.2Exceptional procedures.5310.6Procedures where a call from the public ISDN to the private ISDN is diverted by the public ISDN.5311Interactions with other networks.5412Interaction with other supplementary services.5413Parameter values (timers).5414Dynamic description (SDL diagrams).54Annex A (informative):Signalling flows.85Annex B (informative):Change history.92B.1Changes from ETS 300 207-1 (1994).92History.93SIST EN 300 207-1 V1.2.5:2003



ETSIEN 300 207-1 V1.2.5 (1998-10)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 found inSR 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.org/ipr).Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee canbe given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server) whichare, 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) diversion supplementary services, asdescribed 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 [3], the following three level structure is used to describe thesupplementary telecommunication services as provided by European public telecommunications operators under thepan-European ISDN:-stage one: is an overall service description, from the user's standpoint;-stage two: identifies the functional capabilities and information flows needed to support the service described instage one; and-stage three: defines the signalling system protocols and switching functions needed to implement the servicedescribed in stage one.The present document details the stage three aspects (signalling system protocols and switching functions) needed tosupport the diversion supplementary services. The stage one aspects are detailed in ETS 300 199 (1994) [14],ETS 300 200 (1994) [15], ETS 300 201 (1994) [16], ETS 300 202 (1994) [17] and EN 301 133 [18]. The stage twoaspects are detailed in ETS 300 203 (1994), ETS 300 204 (1994), ETS 300 205 (1994) and ETS 300 206 (1994).Changes from the previous version of the present document are shown in annex B.SIST EN 300 207-1 V1.2.5:2003



ETSIEN 300 207-1 V1.2.5 (1998-10)6National transposition datesDate of adoption of this EN: 30 October 1998Date of latest announcement of this EN (doa): 31 January 1999Date of latest publication of new National Standardor endorsement of this EN (dop/e): 31 July 1999Date of withdrawal of any conflicting National Standard (dow): 31 July 1999SIST EN 300 207-1 V1.2.5:2003



ETSIEN 300 207-1 V1.2.5 (1998-10)71ScopeThis first part of EN 300 207 specifies the stage three of the diversion supplementary services for the pan-EuropeanIntegrated Services Digital Network (ISDN) as provided by European public telecommunications operators at theT reference point or coincident S and T reference point (as defined in ITU-T Recommendation I.411 [6]) by means of theDigital Subscriber Signalling System No. one (DSS1). Stage three identifies the protocol procedures and switchingfunctions needed to support a telecommunication service (see CCITT Recommendation I.130 [3]).In addition, the present document specifies the protocol requirements at the T reference point where the service isprovided to the user via an intermediate 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 diversion supplementary services comprise the following services:-Call Forwarding Unconditional (CFU) supplementary service;-Call Forwarding Busy (CFB) supplementary service;-Call Forwarding No Reply (CFNR) supplementary service;-Selective Call Forwarding Unconditional (SCFU) supplementary service-Selective Call Forwarding Busy (SCFB) supplementary service;-Selective Call Forwarding No Reply (SCFNR) supplementary service;-Call Deflection (CD) supplementary service.The CFU supplementary service enables a served user to have the network redirect to another user calls which areaddressed to the served user's ISDN number. The CFU supplementary service may operate on all calls, or just thoseassociated with specified basic services. The served user's ability to originate calls is unaffected by the CFUsupplementary service. After the CFU supplementary service has been activated, calls are forwarded independent of thestatus of the served user.The CFB supplementary service enables a served user to have the network redirect to another user calls which areaddressed to the served user's ISDN number and meet busy. The CFB supplementary service may operate on all calls, orjust those associated with specified basic services. The served user's ability to originate calls is unaffected by the CFBsupplementary service.The CFNR supplementary service enables a served user to have the network redirect to another user calls which areaddressed to the served user's ISDN number, and for which the connection is not established within a defined period oftime. The CFNR supplementary service may operate on all calls, or just those associated with specified basic services.The served user's ability to originate calls is unaffected by the CFNR supplementary service.The SCF supplementary service enables a served user to specify the forwarding of their incoming calls to a selecteddestination subject to certain conditions or circumstances e.g. the calling line identity of the calling user. The user is alsoallowed to interrogate the screening list.The CD supplementary service enables the served user to respond to an incoming call by requesting redirection of thatcall to another user. The CD supplementary service can only be invoked before the connection is established by theserved user, i.e. in response to the offered call, or during the period that the served user is being informed of the call. Theserved user's ability to originate calls is unaffected by the CD supplementary service.The diversion supplementary services are applicable to all circuit-switched telecommunication services.Further parts of EN 300 207 specify the method of testing required to identify conformance to the present document.The present document is applicable to equipment supporting at least one of the diversion supplementary services, to beattached at either side of a T reference point or coincident S and T reference point when used as an access to the publicISDN.SIST EN 300 207-1 V1.2.5:2003



ETSIEN 300 207-1 V1.2.5 (1998-10)82Normative referencesReferences may be made to:a)specific versions of publications (identified by date of publication, edition number, version number, etc.), in whichcase, 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]ITU-T Recommendation E.164 (1997): "The international public telecommunication numberingplan".[2]ITU-T Recommendation I.112 (1993): "Vocabulary of terms for ISDNs".[3]CCITT Recommendation I.130 (1988): "Method for the characterization of telecommunicationservices supported by an ISDN and network capabilities of an ISDN".[4]ITU-T Recommendation I.210 (1993): "Principles of telecommunication services supported by anISDN and the means to describe them".[5]ITU-T Recommendation I.221 (1993): "Common specific characteristics of services".[6]ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces; Reference configurations".[7]CCITT Recommendation X.208 (1988): "Specification of Abstract Syntax Notation One (ASN.1)".[8]CCITT Recommendation X.219 (1988): "Remote operations: Model, notation and servicedefinitions".[9]CCITT Recommendation Z.100 (1988): "Specification and Description Language (SDL)".[10]ENV 41007-1 (1991): "Definition of terms in private telecommunication networks; Part 1:Definition of general terms".[11]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]".[12]EN 300 195-1: "Integrated Services Digital Network (ISDN); Supplementary service interactions;Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification".[13]EN 300 196-1: "Integrated Services Digital Network (ISDN); Generic functional protocol for thesupport of supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol;Part 1: Protocol specification".[14]ETS 300 199 (1994): "Integrated Services Digital Network (ISDN); Call Forwarding Busy (CFB)supplementary service; Service description".[15]ETS 300 200 (1994): "Integrated Services Digital Network (ISDN); Call Forwarding Unconditional(CFU) supplementary service; Service description".[16]ETS 300 201 (1994): "Integrated Services Digital Network (ISDN); Call Forwarding No Reply(CFNR) supplementary service; Service description".[17]ETS 300 202 (1994): "Integrated Services Digital Network (ISDN); Call Deflection (CD)supplementary service; Service description".SIST EN 300 207-1 V1.2.5:2003



ETSIEN 300 207-1 V1.2.5 (1998-10)9[18]EN 301 133 (V1.1): "Integrated Services Digital Network (ISDN); Selective Call Forwarding(SCF) supplementary services (unconditional, busy and no reply); Service description".[19]EN 300 286-1: "Integrated Services Digital Network (ISDN); User-to-User Signalling (UUS)supplementary service, Digital Signalling System No.one (DSS1) protocol, Part 1: Protocolspecification".3DefinitionsFor the purposes of the present document, the following definitions apply:address: An address is an ISDN number, with optionally an associated subaddress.alerting phase: The period where the connection at the remote access is such that if it is an ISDN interface, it is in callstate N7, Call Received, and if it is an analogue interface, an alerting indication is being provided.all numbers: If for the control of the call forwarding supplementary services the parameter servedUserNr is set to"allNumbers", then all the ISDN numbers are affected that the user is subscribed to and for which the call forwardingsupplementary service is subscribed to, at the point in time that the request is received in the network.all services: If for the control of the call forwarding supplementary services the parameter basicService is set to"allServices" then all basic services are affected that the user is subscribed to, and for which the call forwardingsupplementary service applies and is subscribed to, at the point in time that the request is received in the network.basic service: A bearer service or teleservice. When used in the present document it refers only to circuit-switched basicservices.bearer service: See ITU-T Recommendation I.112 [2], definition 202.call control message: A message as defined in EN 300 403-1 [11], subclause 3.1, which on sending or receipt causes achange of the call state at either the network or the user. Call control messages also include the INFORMATION messageand the PROGRESS message.call reference: See EN 300 196-1 [13], subclause 3.1.call state: A state as defined in EN 300 403-1 [11], for either the user or the network as appropriate. A call state mayexist for each call reference value (and for each additional responding Connection Endpoint Identifier (CEI) in theincoming call states).calling network: The network to which the calling user is attached.calling user: A user who initiated a call that has been diverted.data link connection endpoint identifier; Connection Endpoint Identifier (CEI): See EN 300 196-1 [13],subclause 3.1.deflected-to number: The ISDN number of the deflected-to user.deflected-to user: A user to which the call is redirected as a result of deflection.deflecting number: The ISDN number of the deflecting user.diverted-to user: Refers either to the forwarded-to user or to the deflected-to user.diverted-to network: The network to which the diverted-to user is attached.diverted-to number: The ISDN number of the forwarded-to or the deflected-to user.diverting network: The network to which the served user (diverting user) is attached.diverting number: The ISDN number of the forwarding/deflecting user.diversion profile: The set of data containing all the parameters pertaining to subscription and activation, involved in thedecision process which leads to the diversion of an incoming call.SIST EN 300 207-1 V1.2.5:2003



ETSIEN 300 207-1 V1.2.5 (1998-10)10dummy call reference: See EN 300 196-1 [13], subclause 3.1.explicit forwarding: Forward all calls from specified calling number(s).forwarded-to address: The address of the forwarded-to user.forwarded-to network: The network to which the forwarded-to user is attached.forwarded-to number: The ISDN number of the forwarded-to user.forwarded-to user: A user to which the call is redirected as a result of forwarding.forwarding network: The network to which
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