SIST EN 300 957 V7.0.1:2003
(Main)Digital cellular telecommunications system (Phase 2+) (GSM); Unstructured Supplementary Service Data (USSD); Stage 3 (GSM 04.90 version 7.0.1 Release 1998)
- Abstract
Upgrade from Phase 2+ to Release 1998
- 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
SIST EN 300 957 V7.0.1:2003 is the Slovene adoption of ETSI EN 300 957 Version 7.0.1, published by SIST. It specifies the Stage 3 description of Unstructured Supplementary Service Data (USSD) operations for the digital cellular telecommunications system (Phase 2+) (GSM), Release 1998. In practice, it tells network and Mobile Station (MS) implementers how USSD requests, notifications, responses, errors and release handling are exchanged.
What does SIST EN 300 957 V7.0.1:2003 specify?
SIST EN 300 957 V7.0.1:2003 specifies the USSD operation procedures and message exchanges for GSM. The scope is divided into two classes: network initiated USSD operations in clause 5 and mobile initiated USSD operations in clause 6.
The document is organized around those two operation flows, with a short cross-phase compatibility clause in clause 4, references in clause 2, abbreviations in clause 3, and an informative Annex A with change request history.
What are the key requirements of SIST EN 300 957 V7.0.1:2003?
Clause 5 defines network initiated USSD request handling. The network sends a
REGISTERmessage with anUnstructuredSS-Requestinvoke component, and the MS answers with aFACILITYmessage carrying the user response. This means implementers must support a dialogue where the network starts the exchange and the MS returns the user’s data.Clause 5 also allows the network application to continue the same dialogue with further USSD operations, including another request or a notification. In practice, this means one USSD session can carry several exchanges before the network sends
RELEASE COMPLETEto end it.Clause 5.2 defines network initiated USSD notification. The network uses
UnstructuredSS-Notify, and the MS acknowledges with an empty result. This matters when the network needs to send information without expecting a user response.Clause 5 requires error handling through
FACILITYreturn error or reject components, with error values taken from GSM 04.80. The MS also usesRELEASE COMPLETEwithUSSD-Busyif it receives a parallel call-independent supplementary service transaction. This is the practical rule for rejecting unsupported concurrency.Clause 6 defines mobile initiated USSD. The MS sends
REGISTERwithProcessUnstructuredSS-Request, the network passes the data to the application, and the application may either finish or ask for more information. This is the basic interactive USSD use case.Clause 6 limits concurrency more strictly: only one USSD transaction per user is allowed at a time, and the MS shall not start USSD in parallel to any call independent supplementary service transaction. For implementers, this is the main session-control constraint to enforce.
Clause 6.2 gives cross-phase compatibility rules between protocol version 2 and protocol version 1 behavior. If the network rejects a version 2 mobile initiated request with
unrecognized operationorFacility rejected, the MS retries with the version 1 form when the data can be coded as an IA5 string. This supports interworking with older networks and handsets.
What terms does SIST EN 300 957 V7.0.1:2003 define?
- USSD - Unstructured Supplementary Service Data, the supplementary service described by this standard.
- MS - Mobile Station, the user device that sends or receives USSD signaling.
- REGISTER - The message used to invoke a USSD request or notification.
- FACILITY - The message that carries invoke, result, error, or reject components in a USSD dialogue.
- RELEASE COMPLETE - The message used to clear the USSD transaction.
- UnstructuredSS-Request - The invoke component used for a network initiated request.
- UnstructuredSS-Notify - The invoke component used for a network initiated notification.
- ProcessUnstructuredSS-Request - The invoke component used for a mobile initiated USSD request.
Who uses SIST EN 300 957 V7.0.1:2003?
SIST EN 300 957 V7.0.1:2003 is used by GSM network equipment vendors, mobile station implementers, and application developers that handle USSD services. It is also relevant to interoperability testers, quality managers, and operators who need to verify message flows, transaction clearing, error handling, and compatibility between Release 1998 and earlier protocol behavior.
What changed in SIST EN 300 957 V7.0.1:2003 from the previous edition?
SIST EN 300 957 V7.0.1:2003 is the Release 1998 version of GSM 04.90. Annex A records the version history, including the upgrade from version 6.0.0 to Release 1998 version 7.0.0 and the later 7.0.1 publication update to text and figures.
Which standards are used with SIST EN 300 957 V7.0.1:2003?
- GSM 01.04 - provides the abbreviations and acronyms used in the document.
- GSM 04.08 - provides the mobile radio interface layer 3 specification used for signaling context and the
Facility rejectedcause. - GSM 04.80 - provides the supplementary services specification for formats, coding, error values, and the
USSD-Busyerror.
What does the SIST EN 300 957 V7.0.1:2003 document contain?
The document contains procedure text and signaling diagrams for network initiated and mobile initiated USSD, including single and multiple exchange cases. Figures 5.1 to 5.4 show the message sequences for requests and notifications, while figures 6.1 and 6.2 show mobile initiated operation with and without further information requests. The clauses describe how REGISTER, FACILITY, and RELEASE COMPLETE are used to pass user data, continue a dialogue, or terminate it. Annex A gives the change request history for the specification.
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Frequently Asked Questions
SIST EN 300 957 V7.0.1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Digital cellular telecommunications system (Phase 2+) (GSM); Unstructured Supplementary Service Data (USSD); Stage 3 (GSM 04.90 version 7.0.1 Release 1998)". This standard covers: Upgrade from Phase 2+ to Release 1998
Upgrade from Phase 2+ to Release 1998
SIST EN 300 957 V7.0.1:2003 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 300 957 V7.0.1:2003 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); Unstructured Supplementary Service Data (USSD); Stage 3 (GSM 04.90 version 7.0.1 Release 1998)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 957 Version 7.0.1SIST EN 300 957 V7.0.1:2003en01-december-2003SIST EN 300 957 V7.0.1:2003SLOVENSKI
STANDARD
ETSIEN300957V7.0.1(2000-01)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);UnstructuredSupplementaryServiceData(USSD);Stage3(GSM04.90version7.0.1Release1998)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 957 V7.0.1:2003
ETSIETSIEN300957V7.0.1(2000-01)2(GSM04.90version7.0.1Release1998)ReferenceREN/SMG-030490Q7KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88Internetsecretariat@etsi.frIndividualcopiesofthisETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frImportantnoticeThisETSIdeliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 957 V7.0.1:2003
ETSIETSIEN300957V7.0.1(2000-01)3(GSM04.90version7.0.1Release1998)ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.53Abbreviations.54Crossphasecompatibility.55Networkinitiatedunstructuredsupplementaryservicedataoperations.65.1Unstructuredsupplementaryservicedatarequest.65.1.1Normaloperation.65.2Unstructuredsupplementaryservicedatanotification.85.2.1Normaloperation.86Mobileinitiatedunstructuredsupplementaryservicedataoperations.106.1Normaloperation.106.2Crossphasecompatibility.126.2.1Networkonlysupportsprotocolversion1ofunstructuredsupplementaryservicedataoperations.126.2.2Mobilestationonlysupportsprotocolversion1ofunstructuredsupplementaryservicedataoperations.12AnnexA(informative):ChangeRequestHistory.13History.14SIST EN 300 957 V7.0.1:2003
ETSIETSIEN300957V7.0.1(2000-01)4(GSM04.90version7.0.1Release1998)IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbytheSpecialMobileGroup(SMG).Thepresentdocumentspecifiesthestage3descriptionoftheUnstructuredSupplementaryServiceData(USSD)operationswithinthedigitalcellulartelecommunicationssystem.ThespecificationfromwhichthepresentdocumenthasbeenderivedwasoriginallybasedonCEPTdocumentation,hencethepresentationofthepresentdocumentmaynotbeentirelyinaccordancewiththeETSI/PNErules.ThecontentsofthepresentdocumentissubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillbere-releasedwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version7.x.ywhere:7indicatesRelease1998ofGSMPhase2+.xtheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:31December1999DateoflatestannouncementofthisEN(doa):31March2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2000DateofwithdrawalofanyconflictingNationalStandard(dow):30September2000SIST EN 300 957 V7.0.1:2003
ETSIETSIEN300957V7.0.1(2000-01)5(GSM04.90version7.0.1Release1998)1ScopeThepresentdocumentgivesthestage3descriptionoftheUnstructuredSupplementaryServiceData(USSD)operations.Thegroupofunstructuredsupplementaryservicedataoperationsisdividedintotwodifferentclasses:-Networkinitiatedunstructuredsupplementaryservicedataoperations(clause5);-Mobileinitiatedunstructuredsupplementaryservicedataoperations(clause6).2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.•Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.•Foraspecificreference,subsequentrevisionsdonotapply.•Foranon-specificreference,thelatestversionapplies.•Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.•ForthisRelease1998document,referencestoGSMdocumentsareforRelease1998versions(version7.x.y).[1]GSM01.04:"Digitalcellulartelecommunicationssystem(Phase2+);Abbreviationsandacronyms".[2]GSM04.08:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer3specification".[3]GSM04.80:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer3supplementaryservicesspecification;Formatsandcoding".3AbbreviationsAbbreviationsusedinthepresentdocumentarelistedinGSM01.04.4CrossphasecompatibilityForthemobileinitiatedUSSDoperations,anumberofchangesexistbetweenthepresentdocumentandtheprotocolversion1specification.Fortheseoperationsthemainbodyofthepresentdocumentassumesthatallnetworkentitiescomplywiththisversionoftheservice.InthiscaseanadditionalsubclausedefinestheadditionalrequirementsforwhenoneormorenetworkentitiesortheMobileStation(MS)complieswiththeprotocolversion1specificationsfortheUSSDoperations.SIST EN 300 957 V7.0.1:2003
ETSIETSIEN300957V7.0.1(2000-01)6(GSM04.90version7.0.1Release1998)5Networkinitiatedunstructuredsupplementaryservicedataoperations5.1Unstructuredsupplementaryservicedatarequest5.1.1NormaloperationThenetworkinvokesanUSSDrequestbysendingaREGISTERmessagecontainingaUnstructuredSS-RequestinvokecomponenttotheMS.TheMSshallrespondtotherequestbysendingaFACILITYmessagecontainingtheuser'smobilesubscriber'sresponseinareturnresultcomponent.ThenetworkshallpassthedatareceivedintheresponsetotheapplicationhandlingUSSDoperationsandshallwaitfortheresponseoftheapplication.Theapplicationmayeithercontinueorterminatethedialogue.Whentheapplicationcontinuesthedialogue,itmayinitiateanotherUSSDoperationbysendingaFACILITYmessage(seefigure5.2).TheoperationmayeitherbeanUSSDrequestornotification(seesubclause5.1.2).Whentheapplicationterminatesthedialogue,thenetworkshallclearthetransactionbysendingaRELEASECOMPLETEmessage.TheMSmayalsoclearthetransactionatanytimebysendingaRELEASECOMPLETEmessageupontherequestoftheuser.IftheMSisunabletoprocesstherequestreceivedfromthenetwork,itshallreturnanerrorindicationbysendingaFACILITYmessagecontainingareturnerrorcomponent.ErrorvaluesarespecifiedinGSM04.80.WhentheMSreceivesanUSSDoperationinparalleltoanycallindependentsupplementaryservicetransaction,itshallrespondwithareturnerrorcomponentinaRELEASECOMPLETEmessage,containingthe"USSD-Busy"errorasspecifiedinGSM04.80,toindicatethefailureinhandlingaparallelUSSDoperation.However,thenetworkisallowedtoinitiateUSSDoperationsinparalleltocallrelatedtransactions.MSNetworkREGISTER<------------------------------------------------------------------------------------------------------------------------Facility(Invoke=UnstructuredSS-Request(ussd-DataCodingScheme,ussd-String))FACILITY------------------------------------------------------------------------------------------------------------------------>Facility(Returnresult=UnstructuredSS-Request(ussd-DataCodingScheme,ussd-String))FACILITY------------------------------------------------>Facility(Returnerror(Error))FACILITY------------------------------------------------>Facility(Reject(Invoke_problem))RELEASECOMPLETE<------------------------------------------------------------------------------------------------------------------------NOTE:TheMSmayclearthetransactionatanytimebysendingaRELEASECOMPLETEuponrequestoftheuser.Figure5.1:SinglenetworkinitiatedUSSDrequestSIST EN 300 957 V7.0.1:2003
ETSIETSIEN300957V7.0.1(2000-01)7(GSM04.90version7.0.1Release1998)MSNetworkREGISTER<------------------------------------------------------------------------------------------------------------------------Facility(Invoke=UnstructuredSS-Request(ussd-DataCodingScheme,ussd-String))FACILITY------------------------------------------------------------------------------------------------------------------------>Fa
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