SIST EN 300 924 V6.0.1:2003
(Main)Digital cellular telecommunications system (Phase 2+) (GSM); enhanced Multi-Level Precedence and Pre-emption service (eMLPP) - Stage 1 (GSM 02.67 version 6.0.1 Release 1997)
- Abstract
Upgrade from Phase 2+ to Release 1997
- Status
- Published
- Publication Date
- 30-Nov-2003
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2003
- Due Date
- 01-Dec-2003
- Completion Date
- 01-Dec-2003
- Mandate
- UIC
SIST EN 300 924 V6.0.1:2003 is the Slovenian adoption of ETSI EN 300 924 V6.0.1 for the GSM enhanced Multi-Level Precedence and Pre-emption service (eMLPP) at Stage 1. It describes how eMLPP behaves from the subscriber and user point of view in GSM Phase 2+ / Release 1997 networks, including priority handling, fast call set-up, and pre-emption. The document is for network operators, service providers, and mobile subscribers who need to plan, offer, or use this supplementary service.
What does SIST EN 300 924 V6.0.1:2003 specify?
SIST EN 300 924 V6.0.1:2003 specifies the Stage 1 service description of eMLPP in digital cellular telecommunications systems. Clause 1 says the service is a network operator option, can apply to the whole network or a subset, and applies to network resources in common use and to mobile stations with an eMLPP subscription.
The document is organized into scope, references, definitions and abbreviations, description, normal operation, exceptional procedures, alternate procedures, interaction with other supplementary services, and interworking considerations. Annex A is informative and gives the status history of GSM 02.67.
What are the key requirements of SIST EN 300 924 V6.0.1:2003?
Clause 4 sets out the core behavior of eMLPP. The service provides precedence for call set-up and call continuity, and pre-emption when a higher priority call needs resources. In practice, that means the network must be able to prefer some calls over others and, when needed, clear a lower priority call.
The standard defines up to seven priority levels: A, B, 0, 1, 2, 3, and 4. Levels A and B are reserved for network internal use, while levels 0 to 4 are for subscription. A and B are mapped to level 0 outside the MSC area where they are applied, which matters for interworking and for consistent treatment across network boundaries.
Priority handling depends on call type. For mobile originated calls, the calling subscriber’s subscription and chosen level apply; if no eMLPP subscription exists, the network uses a default level. For mobile terminated calls, the calling party’s priority determines treatment, and interworking with ISDN MLPP is required where appropriate.
Clause 4 also defines three call set-up performance classes: fast, normal, and slow. The set-up targets are tied to service planning and normal operating conditions, so operators have to design the network to meet the class they offer.
Pre-emption is only available for levels that the network operator assigns that capability to. When congestion occurs, the network may seize resources from lower priority calls, including during handover to a congested cell. The pre-empted subscriber must receive a suitable indication, which is important for user experience and service handling.
Clauses 5 and 8 describe provisioning and service interaction. The maximum authorized precedence level is set by the service provider, can be changed or withdrawn, and the default level for mobile originated calls can be registered in the network or by subscriber control. The document also covers automatic answering, Call Waiting (CW), Call Forwarding Unconditional (CFU), Call Forwarding on mobile subscriber busy (CFB), Call Forwarding on No Reply (CFNRy), Call Hold, and other supplementary services. For example, incoming higher priority calls can override CW in defined cases, while CFU preserves call precedence during forwarding.
Clause 5.10 and 5.11, plus clause 6, address interrogation, charging, and failure handling. A subscriber may interrogate the usable priority range and the default level, and the utilized precedence level can be extracted from event records if it differs from the default. If the network cannot provide the service as expected, the subscriber must be informed.
What terms does SIST EN 300 924 V6.0.1:2003 define?
- eMLPP - enhanced Multi-Level Precedence and Pre-emption service, the supplementary service described by the document.
- Calling subscriber - the service subscriber who invokes eMLPP for a call.
- Network operator - the entity that provides the network elements and resources used to execute eMLPP.
- Precedence - the priority assigned to a call.
- Service provider - the entity that offers eMLPP for subscription.
- Service subscriber - the mobile subscriber who subscribes to eMLPP.
Who uses SIST EN 300 924 V6.0.1:2003?
SIST EN 300 924 V6.0.1:2003 is used by GSM network operators, service providers, and telecom engineers who design priority handling and pre-emption in mobile networks. It is also relevant to service planners and quality or operations teams that have to define subscription levels, set-up performance, forwarding behavior, and charging records. Equipment and SIM implementers use it when they need the mobile station and network to enforce the authorized precedence level and support the related user procedures.
Which standards are used with SIST EN 300 924 V6.0.1:2003?
The document references several GSM and ITU-T specifications that support its procedures and interworking:
- GSM 01.04 - abbreviations and acronyms.
- GSM 02.04 - general rules for supplementary services.
- GSM 02.24 - charge advice information.
- GSM 02.40 - call progress indications.
- GSM 02.68 and GSM 02.69 - Stage 1 descriptions for VGCS and VBS.
- GSM 03.05 - technical performance objectives.
- GSM 03.68 and GSM 03.69 - Stage 2 descriptions for VGCS and VBS.
- ITU-T Recommendation I.255.3 - ISDN Multi-Level Precedence and Pre-emption stage 1, used for interworking.
What does the SIST EN 300 924 V6.0.1:2003 document contain?
Clause 4 contains the service model, including the seven priority levels, set-up classes, automatic answering behavior, and the example service composition table that links levels to set-up time and pre-emption. Clause 5 describes provision, withdrawal, registration, invocation, charging, and normal operation from the user and subscriber point of view.
Clause 8 lists interactions with other supplementary services such as CLIP, CLIR, CFU, CFB, CFNRy, CW, Call Hold, MPTY, CUG, AoC, BAOC, BOIC, BOIC-exHC, BAIC, BIC-Roam, and ECT. Clause 9 covers interworking with other networks through MLPP. Annex A gives the status history of GSM 02.67.
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Frequently Asked Questions
SIST EN 300 924 V6.0.1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Digital cellular telecommunications system (Phase 2+) (GSM); enhanced Multi-Level Precedence and Pre-emption service (eMLPP) - Stage 1 (GSM 02.67 version 6.0.1 Release 1997)". This standard covers: Upgrade from Phase 2+ to Release 1997
Upgrade from Phase 2+ to Release 1997
SIST EN 300 924 V6.0.1:2003 is classified under the following ICS (International Classification for Standards) categories: 33.070.50 - Global System for Mobile Communication (GSM). The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 924 V6.0.1:2003 is associated with the following European legislation: Standardization Mandates: UIC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 300 924 V6.0.1:2003 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); enhanced Multi-Level Precedence and Pre-emption service (eMLPP) - Stage 1 (GSM 02.67 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 300 924 Version 6.0.1SIST EN 300 924 V6.0.1:2003en01-december-2003SIST EN 300 924 V6.0.1:2003SLOVENSKI
STANDARD
EN 300 924 V6.0.1 (1999-09)European Standard (Telecommunications series)Digital cellular telecommunications system (Phase 2+);enhanced Multi-Level Precedence and Pre-emption service(eMLPP) - Stage 1(GSM 02.67 version 6.0.1 Release 1997)GLOBAL SYSTEM
FOR MOBILE COMMUNICATIONSRSIST EN 300 924 V6.0.1:2003
ETSIEN 300 924 V6.0.1 (1999-09)2GSM 02.67 version 6.0.1 Release 1997ReferenceDEN/SMG-010267Q6 (8k00300o.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.: +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.frIndividual copies of this ETSI deliverablecan be downloaded fromhttp://www.etsi.orgIf you find errors in the present document, send yourcomment to: editor@etsi.frCopyright 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 300 924 V6.0.1:2003
ETSIEN 300 924 V6.0.1 (1999-09)3GSM 02.67 version 6.0.1 Release 1997ContentsIntellectual Property Rights.4Foreword.41Scope.52References.53Definitions and abbreviations.63.1Definitions.63.2Abbreviations.64Description.64.1Applicability to telecommunication services.95Normal operation with successful outcome.95.1Provision.95.2Withdrawal.95.3Registration.95.4Erasure.95.5Network related service configuration.105.6Activation.105.7Deactivation.105.8Invocation.105.9Normal operation.105.10Interrogation.105.11Charging requirements.116Exceptional procedures or unsuccessful outcome.117Alternate procedures.118Interaction with other supplementary services.118.1Calling Line Identification Presentation (CLIP).118.2Calling Line Identification Restriction (CLIR).118.3Connected Line Identification Presentation (COLP).118.4Connected Line Identification Restriction (COLR).118.5Call Forwarding Unconditional (CFU).118.6Call Forwarding on mobile subscriber busy (CFB).118.7Call Forwarding on No Reply (CFNRy).128.8Call Forwarding on mobile subscriber Not Reachable (CFNRc).128.9Call Waiting (CW).128.10Call Hold.128.11Multi-party Service (MPTY).128.12Closed User Group (CUG).128.13Advice of Charge (AoC).128.14Barring of Outgoing Calls (BAOC).128.15Barring of Outgoing International Calls (BOIC).128.16Barring of Outgoing International Calls except those to the Home PLMN country (BOIC-exHC).128.17Barring of All Incoming Calls (BAIC).138.18Barring of Incoming Calls when Roaming outside the home PLMN country (BIC-Roam).138.19Call Transfer (ECT).139Interworking considerations.13Annex A (informative):Status of Technical Specification GSM 02.67.14History.15SIST EN 300 924 V6.0.1:2003
ETSIEN 300 924 V6.0.1 (1999-09)4GSM 02.67 version 6.0.1 Release 1997Intellectual 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 stage 1 description of the enhanced Multi-Level Precedence and Pre-emptionService (eMLPP) within the digital cellular telecommunications system.The contents of the present document may be subject to continuing work within SMG and may change following formalSMG approval. Should SMG modify the contents of the present document it will then be re-submitted for formalapproval procedures by ETSI with an identifying change of release date and an increase in version number as follows:Version 6.x.ywhere:6GSM Phase 2+ Release 1997xthe second digit is incremented for 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 300 924 V6.0.1:2003
ETSIEN 300 924 V6.0.1 (1999-09)5GSM 02.67 version 6.0.1 Release 19971ScopeThe present document specifies the stage 1 description of the enhanced Multi-Level Precedence and Pre-emptionService (eMLPP). This service has two parts: precedence and pre-emption. Precedence involves assigning a prioritylevel to a call in combination with fast call set-up. Pre-emption involves the seizing of resources, which are in use by acall of a lower precedence, by a higher level precedence call in the absence of idle resources. Pre-emption can alsoinvolve the disconnection of an on-going call of lower precedence to accept an incoming call of higher precedence.The eMLPP service is provided as a network operator's option to a domain of a network. The domain can be the wholenetwork or a subset of the network. The eMLPP service applies to all network resources in the domain that is incommon use. The eMLPP service is applicable to all mobile stations in the domain with all or some mobile stationshaving a respective subscription assigning precedence according to the eMLPP service.eMLPP is a supplementary service and shall be provided to a subscriber for all basic services subscribed to and forwhich eMLPP applies.NOTE:It is under study whether normal GSM Phase 2 Mobile Stations will be able to be used for this service.The service is described from the service subscriber's and user's point of view, in particular:-the procedure for normal operation with successful outcome;-the action to be taken in exceptional circumstances;-the interaction with other GSM services and features.The present document does not deal with the Man-Machine Interface (MMI) requirements, but makes reference to theappropriate Global System for Mobile communications (GSM) specifications.The present document is applicable to teleservices 1x and 6x and to all bearer services used in a mobile networkaccording to the digital cellular telecommunications system GSM if eMLPP is provided. Any interaction with otherservices and/or networks not dealt with in clauses 8 or 9 are outside the scope of the present document.2ReferencesThe 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 02.24: "Digital cellular telecommunications system (Phase 2+); Description of ChargeAdvice Information (CAI)".[4]GSM 02.40: "Digital cellular telecommunications system (Phase 2+); Procedures for call progressindications".SIST EN 300 924 V6.0.1:2003
ETSIEN 300 924 V6.0.1 (1999-09)6GSM 02.67 version 6.0.1 Release 1997[5]GSM 02.68: "Digital cellular telecommunications system (Phase 2+); Voice Group Call Service(VGCS) - Stage 1".[6]GSM 02.69: "Digital cellular telecommunications system (Phase 2+); Voice Broadcast Service(VBS) - Stage 1".[7]GSM 03.05: "Digital cellular telecommunications system (Phase 2+); Technical performanceobjectives".[8]GSM 03.68: "Digital cellular telecommunications system (Phase 2+); Voice Group Call Service(VGCS) - Stage 2".[9]GSM 03.69: "Digital cellular telecommunications system (Phase 2+); Voice Broadcast Service(VBS) - Stage 2".[10]ITU-T Recommendation I.255.3: "ISDN Multi-Level Precedence and Pre-emption (MLPP)stage 1".3Definitions and abbreviations3.1DefinitionsFor the purposes of the present document, the following definitions apply:calling subscriber: Service subscriber which invokes the eMLPP service.network operator: Entity which provides the network operating elements and resources for the execution of theenhanced Multi-Level Precedence and Pre-emption service (eMLPP).precedence: Precedence is the priority associated with a call.service provider: Entity which offers the eMLPP service for subscription. The network operator may be the serviceprovider.service subscriber: Mobile subscriber which subscribes to the eMLPP service. In principle, if a network provideseMLPP service, all users are able to subscribe to this service.3.2AbbreviationsFor the purposes of the present document, the following abbreviations apply, in addition to those listed in GSM 01.04:eMLPPenhanced Multi-Level Precedence and Pre-emption4Descriptiona)The enhanced Multi-Level Precedence and Pre-emption service (eMLPP) provides different levels of precedencefor call set-up and for call continuity in case of handover.eMLPP shall be applicable also in case of roaming if supported by the related networks.The maximum precedence level of a subscriber is set at the subscription time by the service provider, based onthe subscriber's need. The subscriber may select a precedence level up to and including the maximum precedencelevel subscribed to, on a per call basis.There are at maximum 7 priority levels. The two highest levels are reserved for network internal use, e.g. foremergency calls or the network related service configurations for specific voice broadcast or voice group callservices. These two levels can only be used locally, i.e. in the domain of one MSC. The other five priority levelsare offered for subscription and can be applied globally, e.g. on inter switch trunks, if supported by all relatednetwork elements, and also for interworking with ISDN networks providing the MLPP service.SIST EN 300 924 V6.0.1:2003
ETSIEN 300 924 V6.0.1 (1999-09)7GSM 02.67 version 6.0.1 Release 1997The seven priority levels are defined as follows:A(highest, for network internal use).B(for ne
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