ETSI EN 300 953 V6.0.1 (1999-09)

Digital cellular telecommunications system (Phase 2+) (GSM); Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 3 (GSM 04.83 version 6.0.1 Release 1997)

DEN/SMG-030483Q6

Digitalni celični telekomunikacijski sistem (faza 2+) – Dopolnilna storitev: čakajoči klic (CW) in zadržanje klica (HOLD) – Stopnja 3 (GSM 04.83, različica 6.0.1, izdaja 1997)

General Information

• Status: Published
• Publication Date: 31-Aug-1999
• Technical Committee: SMG 3 - Network Aspects
• Current Stage: 12 - Completion
• Due Date: 03-Sep-1999
• Completion Date: 01-Sep-1999
• Ref Project: SIST EN 300 953 V6.0.1:2003 - Digital cellular telecommunications system (Phase 2+) (GSM); Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 3 (GSM 04.83 version 6.0.1 Release 1997)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 3 (GSM 04.83 version 6.0.1 Release 1997)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 953 Version 6.0.1SIST EN 300 953 V6.0.1:2003en01-december-2003SIST EN 300 953 V6.0.1:2003SLOVENSKI
STANDARD



SIST EN 300 953 V6.0.1:2003



EN 300 953 V6.0.1 (1999-09)European Standard (Telecommunications series)Digital cellular telecommunications system (Phase 2+);Call Waiting (CW) and Call Hold (HOLD)supplementary services;Stage 3(GSM 04.83 version 6.0.1 Release 1997)GLOBAL SYSTEM
FOR MOBILE COMMUNICATIONSRSIST EN 300 953 V6.0.1:2003



ETSIEN 300 953 V6.0.1 (1999-09)2(GSM 04.83 version 6.0.1 Release 1997)ReferenceDEN/SMG-030483Q6 (8to0300o.PDF)KeywordsDigital cellular telecommunications system,Global System for Mobile communications (GSM)ETSIPostal 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] copies of this ETSI deliverablecan be downloaded fromhttp://www.etsi.orgIf you find errors in the present document, send yourcomment to: [e-mail] 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 1999.All rights reserved.SIST EN 300 953 V6.0.1:2003



ETSIEN 300 953 V6.0.1 (1999-09)3(GSM 04.83 version 6.0.1 Release 1997)ContentsIntellectual Property Rights.4Foreword.40 Scope.50.1References.50.2Abbreviations.71Call Waiting (CW).71.1Waiting call indication and confirmation.71.2Normal operation with successful outcome.81.2.1Waiting call accepted; existing call released.81.2.2Waiting call accepted; existing call on hold.81.2.3Existing call released by user A; waiting call accepted.91.3Normal operation with unsuccessful outcome.91.3.1Waiting call released by subscriber B.91.3.2Waiting call released by calling user C.91.3.3Waiting call times out.91.3.4No reply condition timer expires.91.4Activation.91.5Deactivation.101.6Interrogation.111.7Invocation.111.8Registration and erasure.112Call Hold (HOLD).122.1Normal operation.122.1.1Hold and retrieve functions.122.1.2Hold invocation.122.1.3Retrieve procedure.132.1.4Alternate from one call to the other.142.1.5Auxiliary states for hold and retrieve.152.1.6An example of dimensioned state space.162.2Activation and deactivation.162.3Registration, erasure and interrogation.16Annex A (informative):Change Request History.17History.18SIST EN 300 953 V6.0.1:2003



ETSIEN 300 953 V6.0.1 (1999-09)4(GSM 04.83 version 6.0.1 Release 1997)Intellectual 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.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 the Special Mobile Group (SMG).The present document specifies the procedures used at the radio interface for normal operation, registration, erasure,activation, deactivation, invocation and interrogation of call completion supplementary services within the digitalcellular telecommunications system.The specification from which the present document has been derived was originally based on CEPT documentation,hence the presentation of the present document may not be entirely in accordance with the ETSI/PNE rules.The contents of the present document is subject to continuing work within SMG and may change following formal SMGapproval. Should SMG modify the contents of the present document it will be re-released with an identifying change ofrelease date and an increase in version number as follows:Version 6.x.ywhere:6indicates Release 1997 of GSM Phase 2+xthe second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates,etc.ythe third digit is incremented when editorial only changes have been incorporated in the specification.Proposed national transposition datesDate of adoption of this EN:3 September 1999Date of latest announcement of this EN (doa):31 December 1999Date of latest publication of new National Standardor endorsement of this EN (dop/e):30 June 2000Date of withdrawal of any conflicting National Standard (dow):30 June 2000SIST EN 300 953 V6.0.1:2003



ETSIEN 300 953 V6.0.1 (1999-09)5(GSM 04.83 version 6.0.1 Release 1997)0ScopeThe present document specifies the procedures used at the radio interface (Reference point Um as defined inGSM 04.02) for normal operation, registration, erasure, activation, deactivation, invocation and interrogation of callcompletion supplementary services. Provision and withdrawal of supplementary services is an administrative matterbetween the mobile subscriber and the service provider and cause no signalling on the radio interface.In GSM 04.10 the general aspects of the specification of supplementary services at the layer 3 radio interface are given.GSM 04.80 specifies the formats and coding for the supplementary services.Definitions and descriptions of supplementary services are given in GSM 02.04 and GSM 02.8x and GSM 02.9x-series.GSM 02.83 is related specially to call completion supplementary services.Technical realization of supplementary services is described in GSM 03.11 and GSM 03.8x and GSM 03.9x-series.GSM 03.83 is related specially to call completion supplementary services.The procedures for Call Control, Mobility Management and Radio Resource management at the layer 3 radio interfaceare defined in GSM 04.07 and GSM 04.08.The following supplementary services belong to the call completion supplementary services and are described in thepresent document:-Call waiting(CW)(clause 1);-Call hold(HOLD)(clause 2).0.1ReferencesThe following documents contain provisions which, through reference in this text, constitute provisions of the presentdocument.· References are either specific (identified by date of publication, edition number, version number, etc.) ornon-specific.· For a specific reference, subsequent revisions do not apply.· For a non-specific reference, 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.· For this Release 1997 document, references to GSM documents are for Release 1997 versions (version 6.x.y).[1]GSM 01.04: "Digital cellular telecommunications system (Phase 2+); Abbreviations andacronyms".[2]GSM 02.04: "Digital cellular telecommunications system (Phase 2+); General on supplementaryservices".[3]GSM 02.81: "Digital cellular telecommunications system (Phase 2+); Line identificationsupplementary services - Stage 1".[4]GSM 02.82: "Digital cellular telecommunications system (Phase 2+); Call Forwarding (CF)supplementary services - Stage 1".[5]GSM 02.83: "Digital cellular telecommunications system (Phase 2+); Call Waiting (CW) and CallHold (HOLD) supplementary services - Stage 1".[6]GSM 02.84: "Digital cellular telecommunications system (Phase 2+); MultiParty (MPTY)supplementary services - Stage 1".SIST EN 300 953 V6.0.1:2003



ETSIEN 300 953 V6.0.1 (1999-09)6(GSM 04.83 version 6.0.1 Release 1997)[7]GSM 02.85: "Digital cellular telecommunications system (Phase 2+); Closed User Group (CUG)supplementary services - Stage 1".[8]GSM 02.86: "Digital cellular telecommunications system (Phase 2+); Advice of charge (AoC)supplementary services - Stage 1".[9]GSM 02.88: "Digital cellular telecommunications system (Phase 2+); Call Barring (CB)supplementary services - Stage 1".[10]GSM 02.90: "Digital cellular telecommunications system (Phase 2+); Unstructured SupplementaryServices Data (USSD) - Stage 1".[11]GSM 02.91: "Digital cellular telecommunications system (Phase 2+); ECT supplementary servicesoperation - Stage 1".[12]GSM 03.11: "Digital cellular telecommunications system (Phase 2+); Technical realization ofsupplementary services".[13]GSM 03.81: "Digital cellular telecommunications system (Phase 2+); Line identificationsupplementary services - Stage 2".[14]GSM 03.82: "Digital cellular telecommunications system (Phase 2+); Call Forwarding (CF)supplementary services - Stage 2".[15]GSM 03.83: "Digital cellular telecommunications system (Phase 2+); Call Waiting (CW) and CallHold (HOLD) supplementary services - Stage 2".[16]GSM 03.84: "Digital cellular telecommunications system (Phase 2+); MultiParty (MPTY)supplementary services - Stage 2".[17]GSM 03.85: "Digital cellular telecommunications system (Phase 2+); Closed User Group (CUG)supplementary services - Stage 2".[18]GSM 03.86: "Digital cellular telecommunications system (Phase 2+); Advice of Charge (AoC)supplementary services - Stage 2".[19]GSM 03.88: "Digital cellular telecommunications system (Phase 2+); Call Barring (CB)supplementary services - Stage 2".[20]GSM 03.90: "Digital cellular telecommunications system (Phase 2+); Unstructured supplementaryservices operation - Stage 2".[21]GSM 03.91: "Digital cellular telecommunications system (Phase 2+); Explicit Call Transfer (ECT)supplementary service - Stage 2".[22]GSM 04.02: "Digital cellular telecommunications system (Phase 2+); GSM Public Land MobileNetwork (PLMN) access reference configuration".[23]GSM 04.07: "Digital cellular telecommunications system (Phase 2+); Mobile radio interfacesignalling layer 3; General aspects".[24]GSM 04.08: "Digital cellular telecommunications system (Phase 2+); Mobile radio interface layer3 specification".[25]GSM 04.10: "Digital cellular telecommunications system (Phase 2+); Mobile radio interface layer3; Supplementary services specification; General aspects".[26]GSM 04.80: "Digital cellular telecommunications system (Phase 2+); Mobile radio interface layer3 supplementary services specification; Formats and coding".[27]GSM 04.82: "Digital cellular telecommunications system (Phase 2+); Call Forwarding (CF)supplementary services - Stage 3".SIST EN 300 953 V6.0.1:2003



ETSIEN 300 953 V6.0.1 (1999-09)7(GSM 04.83 version 6.0.1 Release 1997)0.2AbbreviationsAbbreviations used in the present document are listed in GSM 01.04.1Call Waiting (CW)1.1Waiting call indication and confirmationWhen this service is activated for the controlling subscriber B and the B-subscriber has calls only in states U10 (Active)or U26 (MO Modify) as defined in GSM 04.08, the arrival of an incoming call from subscriber C shall, if no other call iswaiting be signalled to the mobile station B by a normal call indication. In that case the network and the mobile stationshall act in accordance with GSM 04.08. The transaction identifier shall be the transaction identifier (C-B) allocated tothe waiting call and must not be the same as the transaction identifier (A-B) for the already existing call (see figure 1.1).In the CALL CONFIRMED message sent to the network the Cause information element shall be included with cause#17 "user busy" (see figure 1.1). When the ALERTING message is received by the network the call waiting timer T2shall be started or if call forwarding on no reply is activated for the B-subscriber the no reply condition timer T3 shall bestarted.If the network received a non-zero SS Screening indicator from the calling users mobile station theALERTING/FACILITY message sent to a calling mobile user shall include the Facility information element with aninvoke of the Notification operation indicating that the call is waiting (see figure 1.2). If the network did not receive anon-zero SS Screening indicator from the calling users mobile station it shall not send a notification, i.e. either theALERTING message does not include the Notification operation or the FACILITY message is omitted.
MSNetworkSETUP<------------------------------------------------------------------------------------------------------------------------.Transaction identifier(C-B).CALL CONFIRMED------------------------------------------------------------------------------------------------------------------------>.Transaction identifier(C-B).Cause #17 (user busy).ALERTING------------------------------------------------------------------------------------------------------------------------>.Transaction identifier(C-B). start T2/T3NOTE:The SETUP message shall include a "Signal Information" element with value #7 (call waiting tone on).This shall be used by the MS to generate an appropriate call waiting indication.Figure 1.1: Call indication to the mobile station on arrival of an incoming calland call confirmation from the mobile station
MSNetworkSETUP------------------------------------------------------------------------------------------------------------------------>CALL PROCEEDING<------------------------------------------------------------------------------------------------------------------------ALERTING/FACILITY<------------------------------------------------------------------------------------------------------------------------Facility (Invoke = NotifySS (CW, CallIsWaiting-Indicator))NOTE:If possible, the ALERTING message shall be used as the carrier message for the Call Waiting notification.Otherwise the FACILITY message shall be used.Figure 1.2: Notification to a calling mobile station that the call is in the waiting stateSIST EN 300 953 V6.0.1:2003



ETSIEN 300 953 V6.0.1 (1999-09)8(GSM 04.83 version 6.0.1 Release 1997)1.2Normal operation with successful outcome1.2.1Waiting call accepted; existing call releasedIf the mobile user B before expiry of timer T2 determines to accept the waiting call and release the existing call themobile station shall release the existing call firstly and accept the waiting call secondly.For the release of the existing call the mobile station and the network shall act in accordance with GSM 04.08. Thetransaction identifier shall be the transaction identifier (A-B) of the already existing call. The Cause information elementin the first clearing message shall indicate cause #16 "normal clearing".For the acceptance of the waiting call the mobile station and the network shall act in accordance with GSM 04.08. Thetransaction identifier shall be the transaction identifier (C-B) of the waiting call.When the network receives the CONNECT message the timer T2 or if applicable the timer T3 shall be stopped.1.2.2Waiting call accepted; existing call on holdIf the mobile user B before expiry of timer T2 or if applicable timer T3 determines to accept the waiting call and put theexisting call on hold the mobile station shall put the existing call on hold firstly and accept the waiting call secondly.In case there is one active call (A-B) and another call (D-B) on hold and call (C-B) waiting, and the mobile user B wantsto accept the waiting call (C-B) and put the active call (A-B) on hold, the held call (D-B) has to be released first, eitherby user B or user D, in accordance with GSM 04.08.To put the existing call on hold the mobile station and the network shall act in accordance with clause 2. The holdfunction shall be initiated by the mobile station and the transaction identifier shall be the transaction identifier (A-B) ofthe existing call (see figure 1.3).For the acceptance of the waiting call the mobile station and the network shall act in accordance with GSM 04.08. Thetransaction identifier shall be the transaction identifier (C-B) of the waiting call (see figure 1.3).When the network receives the CONNECT message the timer T2 or if applicable the timer T3 shall be stopped.
MSNetworkHOLD------------------------------------------------------------------------------------------------------------------------>.Transaction identifier(A-B).HOLD ACKNOWLEDGE<------------------------------------------------------------------------------------------------------------------------.Transaction identifier(A-B).HOLD REJECT<-
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-.Transaction identifier(A-B).Cause #29 (facility rejected).or #50 (requested facility not subscribed)or #69 (requested facility not implemented)CONNECT---------------------------------------------------------------------
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