SIST EN 300 182-1:2000

Integrated Services Digital Network (ISDN); Advice of Charge (AOC) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification

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

Digitalno omrežje z integriranimi storitvami (ISDN) - Dopolnilna storitev: obvestilo o ceni (AOC) - Protokol digitalne naročniške signalizacije št. 1 (DSS1) - 1. del: Specifikacija protokola

General Information

• Status: Published
• Publication Date: 31-Dec-1999
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SPS - Signalling protocols and switching
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2000
• Due Date: 01-Jan-2000
• Completion Date: 01-Jan-2000
• Ref Project: ETSI EN 300 182-1 V1.2.4 (1998-06) - Integrated Services Digital Network (ISDN); Advice of Charge (AOC) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Integrated Services Digital Network (ISDN); Advice of Charge (AOC) 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 300 182-1 V1.2.43SIST EN 300 182-1:en01-jXOLM3SIST EN 300 182-1:SLOVENSKI
STANDARD



SIST EN 300 182-1:2000



EN 300 182-1 V1.2.4 (1998-06)European Standard (Telecommunications series)Integrated Services Digital Network (ISDN);Advice of Charge (AOC) supplementary service;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 1: Protocol specificationSIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)2ReferenceREN/SPS-05145-K-1 (1oo90iqo.PDF)KeywordsISDN, AOC, 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 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)3ContentsIntellectual Property Rights.4Foreword.41Scope.62Normative references.63Definitions.74Abbreviations.85Description.85.1General description.85.2Charging information at call set-up time (AOC-S).95.3Charging information during the call (AOC-D).95.4Charging information at the end of the call (AOC-E).96Operational requirements.96.1Provision and withdrawal.96.2Requirements on the originating network side.106.3Requirements on the destination network side.107Coding requirements.107.1General.107.2Coding of the Facility information element components.108State definitions.149Signalling procedures at the coincident S and T reference point.149.1Activation, deactivation and registration.149.1.1Normal operation.149.1.2Exceptional procedures.159.2Invocation and operation.169.2.1Transfer of charging information in the call establishment phase.169.2.1.1Normal operation.169.2.1.2Exceptional procedures.179.2.2Transfer of charging information in the Active state.179.2.2.1Normal operation.179.2.2.2Exceptional procedures.189.2.3Transfer of charging information in the call clearing phase.189.2.3.1Normal operation.189.2.3.2Exceptional procedures.199.2.4Transfer of charging information independent of a bearer at the user-network interface.209.2.4.1Normal operation.209.2.4.2Exceptional procedures.2010Procedures for interworking with private ISDNs.2111Interactions with other networks.2112Interactions with other supplementary services.2113Parameter values (timers).2114Dynamic description (SDL diagrams).21Annex A (informative):Signalling flows.32Annex B (informative):Changes with respect to the previous ETS 300 182-1.37History.38SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)4Intellectual 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.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 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) Advice of Charge (AOC) supplementaryservice, 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 the pan-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 service describedin stage 1.The present document details the stage 3 aspects (signalling system protocols and switching functions) needed to supportthe Advice of Charge (AOC) supplementary service. The stage 1 and stage 2 aspects are detailed in ETSs 300 178 to 180and ETS 300 181, respectively.The present version updates the references to the basic call specifications.SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)5National 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 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)61ScopeThis first part of EN 300 182 specifies the stage three of the Advice of Charge (AOC) supplementary service for the pan-European Integrated Services Digital Network (ISDN) as provided by European public telecommunications operators atthe T reference point or coincident S and T reference point (as defined in CCITT Recommendation I.411 [1]) by means ofthe Digital Subscriber Signalling System No. one (DSS1). Stage three identifies the protocol procedures and switchingfunctions needed to support a telecommunications 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.Three AOC supplementary services exist:a)Charging information at call set-up time (AOC-S)The AOC-S supplementary service enables a user to receive information about the charging rates at call set-uptime and also to receive further information during the call if there is a change of charging rates.b)Charging information during the call (AOC-D)The AOC-D supplementary service enables a user to receive information on the recorded charges for a call duringthe active phase of the call.c)Charging information at the end of the call (AOC-E)The AOC-E supplementary service enables a user to receive information on the recorded charges for a call whenthe call is terminated.The AOC supplementary service is applicable to all circuit-switched 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 AOC supplementary service, to be attached at either sideof 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.), 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]CCITT Recommendation I.411 (1988): "ISDN user-network interfaces - Reference configurations".[2]CCITT Recommendation I.130 (1988): "Method for the characterisation of telecommunicationservices supported by an ISDN and network capabilities of an ISDN".[3]CCITT Recommendation I.112: "Vocabulary of terms for ISDNs".SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)7[4]CCITT Recommendation I.210: "Principles of telecommunication services supported by an ISDNand the means to describe them".[5]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]".[6]ETS 300 178 (1992): "Integrated Services Digital Network (ISDN); Advice of Charge: charginginformation at call set-up time (AOC-S); Service description".[7]ETS 300 179 (1992): "Integrated Services Digital Network (ISDN); Advice of Charge: charginginformation during the call (AOC-D); Service description".[8]ETS 300 180 (1992): "Integrated Services Digital Network (ISDN); Advice of Charge: charginginformation at the end of the call (AOC-E); Service description".[9]CCITT Recommendation X.208 (1988): "Specification of Abstract Syntax Notation One (ASN.1)".[10]CCITT Recommendation X.219 (1988): "Remote Operations: Model, Notation and ServiceDefinitions".[11]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".[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]CCITT Recommendation Z.100 (1988): "Functional Specification and Description Language(SDL)".3DefinitionsFor the purposes of the present document, the following definitions apply:activation: Implies either a user request for AOC supplementary service(s) or a network performed activation of thesubscribed AOC supplementary service(s) whenever the served user makes an outgoing call.NOTE 1:The stage 1 description, as specified in ETS 300 178 [6], ETS 300 179 [7] and ETS 300 180 [8], definesactivation as being performed at the time of subscription.basic communication: This charged item indicates the rate to be applied for the connection to the called user.billing identification: Elements for billing identification inform the served user that the associated charges have beenincurred due to the indicated situation (e.g. a call that has been forwarded at the served user's access).call attempt: This charged item indicates the cost applied for a call which has been sent to the called user, but the calleduser has not yet answered the call.call control message: A message as defined in ETS 300 403-1 [5], subclause 3.1, which on sending or receipt causes achange of the call state at either the network or the user.call setup: This charged item indicates the cost applied for the connection to the called user when the called user answersthe call.charging information: Information sent to a user in an invoke component or a return result component showing charging-related information (i.e. either charging rate information, special charging rates, or the recorded charges for the call).continuous: See subclause A.2.3.1 of ETS 300 178 [6].flat rate: This specific rate indicates a fixed currency value per event.Integrated Services Digital Network (ISDN): See CCITT Recommendation I.112 [3], § 2.3, definition 308.SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)8invocation: Implies the sending of charging information from the network to the served user.NOTE 2:The stage 1 description, as specified in ETS 300 178 [6], ETS 300 179 [7] and ETS 300 180 [8], definesinvocation as either a user request for an AOC supplementary service or as the network invocation for allcalls.invoke component: See EN 300 196-1 [11], subclause 8.2.2.1.network: The DSS1 protocol entity at the network side of the user-network interface.operation of supplementary services: This charged item indicates the cost applied for the operation of requestedsupplementary services.recorded charges: This information indicates the number of charging units or currency units incurred for a call.return error component: See EN 300 196-1 [11], subclause 8.2.2.3.return result component: See EN 300 196-1 [11], subclause 8.2.2.2.served user: The user of a particular ISDN number, who is requesting that charging information should be provided (forall calls or on request).service: Telecommunications service: see CCITT Recommendation I.112 [3], § 2.2, definition 201.special charging arrangement: This charged item indicates that a special charging arrangement exists for calculating thecost of the call.NOTE 3:The use of this charged item is outside the scope of the standard. It is a matter for the network operator andthe user to which it is sent.special charging code: This specific code indicates a rate which can identify a charging algorithm that can be used as abasis for determining the cost of a call.step function: See subclause A.2.3.1 of ETS 300 178 [6].supplementary service: See CCITT Recommendation I.210 [4], § 2.4.user: The DSS1 protocol entity at the user side of the user-network interface.user-to-user information transfer: This charged item indicates the rate to be applied to the transfer of user-to-userinformation.4AbbreviationsFor the purposes of the present document, the following abbreviations apply:AOCAdvice of ChargeAOC-DAOC during the callAOC-EAOC at the end of the callAOC-SAOC at call set-up timeASN.1Abstract Syntax Notation OneDSS1Digital Subscriber Signalling System No. oneISDNIntegrated Services Digital Network5Description5.1General descriptionDepending on subscription by the served user, charging information for any of the three supplementary services may beprovided either:SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)9-for all calls; or-for any call, after a user request to provide charging information.The charging information given shall relate to the charges incurred on the network to which the user is attached.Charging information for applications using higher layer protocols which are not defined as teleservices, shall be basedon the bearer services specified.5.2Charging information at call set-up time (AOC-S)When the AOC-S supplementary service is activated, the network shall provide the user with information about thecharging rates at call establishment. In addition, the network shall inform the served user if a change in charging ratestakes place during the call.The network shall provide the charging information during call establishment or at the latest at call connection. Whenthere is a change in the charging rate during the call, the network shall send information about the new charging rate to theserved user.5.3Charging information during the call (AOC-D)When the AOC-D supplementary service is activated, the network shall provide the user with charging information for acall during the active phase of a call. The network shall provide the charging information and transfer it to the served userin an appropriate message. The supplied charging information shall be provided as a cumulative charge incurred so far forthe call (i.e. charges recorded from the start of the call and until the moment the charging information is sent to the serveduser).When the call is released, the network shall send the recorded charges for the call to the served user in one of the callcontrol messages clearing the call.If the network has determined that the call is free of charge, then the network shall send a free-of-charge indication in thefirst subsequent message sent to the served user. The network shall not send any further charging information during thecall. When the call is released, the network shall send the charged amount (zero) in a call control message clearing thecall.5.4Charging information at the end of the call (AOC-E)When the AOC-E supplementary service is activated, the network shall provide the served user with charging informationindicating the recorded charges for a call when the call is released. The network shall send the charging information to theserved user in one of the call control messages clearing the call.6Operational requirements6.1Provision and withdrawalThese supplementary services shall be provided separately by arrangement with the service provider or be generallyavailable. Withdrawal of the service shall be made at subscriber request or for administrative reasons.The following subscription options exist for each of the three AOC supplementary services, as defined in table 1.Table 1: Advice of charge subscription optionsSubscription optionsValueProvision of service1. For all calls; or2. On request on a per call basis.SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)106.2Requirements on the originating network sideFor the purpose of the present document, the served user of the AOC supplementary service is connected to the originatingnetwork.The originating network shall make available the type of charging information that is indicated, related to a certain call.The originating network shall assemble the appropriate charging information, according to the service requirements, andsend it to the user.NOTE:The charging information may either be generated at the originating network, or generated elsewhere andsent to the originating network, in due time for the information to be provided to the user according to theprocedures of the present document.The network shall only include a charged item if the charged item contains information concerning the charges applied tothat call.The network shall only use those charged items which are appropriate to that network charging mechanism. Thus, in somenetworks, the network may, but need not, send some of these items, or combinations of items. Different networks couldgive information about the same call in different ways.If the served user suspends a call, then, as a network option, the originating network shall retain the charging informationfor the suspended call as long as the network retains the call identity of the suspended call of the served user.6.3Requirements on the destination network sideNone identified.7Coding requirements7.1GeneralThe charging information that the network shall convey to the served user may consist of a number of information units.The information to be transferred is specified in clause 5 of the stage 1 service descriptions ETS 300 178 [6],ETS 300 179 [7], and ETS 300 180 [8].7.2Coding of the Facility information element componentsTable 2 shows the definition of the operations and errors required for the AOC supplementary service using AbstractSyntax Notation one (ASN.1) as defined in CCITT Recommendation X.208 [9] and using the OPERATION and ERRORmacro as defined in CCITT Recommendation X.219 [10], figure 4/X.219.The formal definition of the component types to encode these operations and errors is provided in EN 300 196-1 [11],annex D, clause D.1.The inclusion of components in Facility information elements is defined in EN 300 196-1 [11], subclause 11.1.Table 2: Definition of operations and errors for the AOC supplementary servicesAdvice-of-Charge-Operations {ccitt identified-organization etsi (0) 182 operations-and-errors(1)}DEFINITIONS IMPLICIT TAGS ::=BEGINEXPORTSChargingRequest, AOCSCurrency, AOCSSpecialArr,AOCDCurrency, AOCDChargingUnit, AOCECurrency, AOCEChargingUnit,NoChargingInfoAvailable, ChargingAssociation;IMPORTSOPERATION, ERRORSIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)11FROM Remote-Operation-Notation{joint-iso-ccitt remote-operations (4) notation (0)}notSubscribed, notAvailable, notImplemented, invalidCallStateFROM General-Errors{ccitt identified-organization etsi (0) 196 general-errors (2)}PartyNumberFROM Addressing-Data-Elements{ccitt identified-organization etsi (0) 196 addressing-data-elements (6)};ChargingRequest ::= OPERATIONARGUMENT ChargingCaseRESULT CHOICE {AOCSCurrencyInfoList,AOCSSpecialArrInfo,chargingInfoFollows NULL}ERRORS {notSubscribed, notAvailable, notImplemented,invalidCallState, NoChargingInfoAvailable}AOCSCurrency ::= OPERATION-- AOC-S given in currency unitsARGUMENT CHOICE {chargeNotAvailable NULL,AOCSCurrencyInfoList }AOCSSpecialArr ::= OPERATION-- AOC-S for special charging arrangementARGUMENT CHOICE {chargeNotAvailable NULL,AOCSSpecialArrInfo }AOCDCurrency ::= OPERATION-- AOC-D given in currency unitsARGUMENT CHOICE {chargeNotAvailable NULL,AOCDCurrencyInfo }AOCDChargingUnit ::= OPERATION-- AOC-D given in charging unitsARGUMENT CHOICE {chargeNotAvailable NULL,AOCDChargingUnitInfo }AOCECurrency ::= OPERATION-- AOC-E given in currency unitsARGUMENT CHOICE {chargeNotAvailable NULL,AOCECurrencyInfo }AOCEChargingUnit ::= OPERATION-- AOC-E given in charging unitsARGUMENT CHOICE {chargeNotAvailable NULL,AOCEChargingUnitInfo }ChargingCase::=ENUMERATED {chargingInformationAtCallSetup (0),chargingDuringACall (1),chargingAtTheEndOfACall (2) }Table 2 (continued): Definition of operations and errors for the AOC supplementary servicesAOCSCurrencyInfoList::=SEQUENCE SIZE (1.10) OF AOCSCurrencyInfoAOCSCurrencyInfo::=SEQUENCE {chargedItem ChargedItem,CHOICE {specificCurrency CHOICE {durationCurrency[1] DurationCurrency,flatRateCurrency[2] FlatRateCurrency,volumeRateCurrency[3] VolumeRateCurrency},specialChargingCodeSpecialChargingCode,freeOfCharge[4] NULL,currencyInfoNotAvailable[5] NULL} }AOCSSpecialArrInfo::=INTEGER (1.10)ChargedItem::=ENUMERATED {basicCommunication (0),callAttempt (1),callSetup (2),userToUserInfo (3),operationOfSupplementaryServ (4) }SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)12DurationCurrency::=SEQUENCE {dCurrency[1]Currency,dAmount[2]Amount,dChargingType[3]ChargingType,dTime[4]Time,dGranularity[5]Time OPTIONAL }FlatRateCurrency::=SEQUENCE {fRCurrency[1]Currency,fRAmount[2]Amount }VolumeRateCurrency::=SEQUENCE {vRCurrency[1]Currency,vRAmount[2]Amount,vRVolumeUnit[3]VolumeUnit}SpecialChargingCode::=INTEGER (1.10)AOCDCurrencyInfo::=CHOICE {specificCurrency SEQUENCE {recordedCurrency[1] RecordedCurrency,typeOfChargingInfo[2] TypeOfChargingInfo,aOCDBillingId[3] AOCDBillingId OPTIONAL },freeOfCharge[1] NULL}AOCDChargingUnitInfo::=CHOICE {specificChargingUnits SEQUENCE {recordedUnitsList[1] RecordedUnitsList,typeOfChargingInfo[2] TypeOfChargingInfo,aOCDBillingId[3] AOCDBillingId OPTIONAL },freeOfCharge[1] NULL}RecordedCurrency::=SEQUENCE {rCurrency[1]Currency,rAmount[2]Amount }RecordedUnitsList::=SEQUENCE SIZE (1.32) OF RecordedUnitsTypeOfChargingInfo::=ENUMERATED {subTotal(0),total (1)}RecordedUnits::=SEQUENCE {CHOICE{recordedNumberOfUnitsNumberOfUnits,notAvailableNULL},recordedTypeOfUnitsTypeOfUnit OPTIONAL }AOCDBillingId::=ENUMERATED {normalCharging(0),reverseCharging(1),creditCardCharging (2)}SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)13Table 2 (continued): Definition of operations and errors for the AOC supplementary servicesAOCECurrencyInfo::=SEQUENCE {CHOICE {specificCurrency SEQUENCE {recordedCurrency[1] RecordedCurrency,aOCEBillingId[2] AOCEBillingId OPTIONAL},freeOfCharge[1] NULL},chargingAssociationChargingAssociation OPTIONAL}AOCEChargingUnitInfo ::=SEQUENCE {CHOICE {specificChargingUnits SEQUENCE {recordedUnitsList[1] RecordedUnitsList,aOCEBillingId[2] AOCEBillingId OPTIONAL},freeOfCharge[1] NULL},chargingAssociationChargingAssociation OPTIONAL}AOCEBillingId::=ENUMERATED {normalCharging(0),reverseCharging(1),creditCardCharging(2),callForwardingUnconditional(3),callForwardingBusy(4),callForwardingNoReply(5),callDeflection(6),callTransfer(7)}Currency::=IA5String (SIZE (1.10))Amount::=SEQUENCE {currencyAmount[1]CurrencyAmount,multiplier[2]Multiplier}CurrencyAmount::=INTEGER (0.16777215)Multiplier::=ENUMERATED {oneThousandth (0),oneHundre
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Integrated Services Digital Network (ISDN); Advice of Charge (AOC) 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 300 182-1 Version 1.2.4SIST EN 300 182-1:2000en01-januar-2000SIST EN 300 182-1:2000SLOVENSKI
STANDARD



SIST EN 300 182-1:2000



EN 300 182-1 V1.2.4 (1998-06)European Standard (Telecommunications series)Integrated Services Digital Network (ISDN);Advice of Charge (AOC) supplementary service;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 1: Protocol specificationSIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)2ReferenceREN/SPS-05145-K-1 (1oo90iqo.PDF)KeywordsISDN, AOC, 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 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)3ContentsIntellectual Property Rights.4Foreword.41Scope.62Normative references.63Definitions.74Abbreviations.85Description.85.1General description.85.2Charging information at call set-up time (AOC-S).95.3Charging information during the call (AOC-D).95.4Charging information at the end of the call (AOC-E).96Operational requirements.96.1Provision and withdrawal.96.2Requirements on the originating network side.106.3Requirements on the destination network side.107Coding requirements.107.1General.107.2Coding of the Facility information element components.108State definitions.149Signalling procedures at the coincident S and T reference point.149.1Activation, deactivation and registration.149.1.1Normal operation.149.1.2Exceptional procedures.159.2Invocation and operation.169.2.1Transfer of charging information in the call establishment phase.169.2.1.1Normal operation.169.2.1.2Exceptional procedures.179.2.2Transfer of charging information in the Active state.179.2.2.1Normal operation.179.2.2.2Exceptional procedures.189.2.3Transfer of charging information in the call clearing phase.189.2.3.1Normal operation.189.2.3.2Exceptional procedures.199.2.4Transfer of charging information independent of a bearer at the user-network interface.209.2.4.1Normal operation.209.2.4.2Exceptional procedures.2010Procedures for interworking with private ISDNs.2111Interactions with other networks.2112Interactions with other supplementary services.2113Parameter values (timers).2114Dynamic description (SDL diagrams).21Annex A (informative):Signalling flows.32Annex B (informative):Changes with respect to the previous ETS 300 182-1.37History.38SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)4Intellectual 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.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 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) Advice of Charge (AOC) supplementaryservice, 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 the pan-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 service describedin stage 1.The present document details the stage 3 aspects (signalling system protocols and switching functions) needed to supportthe Advice of Charge (AOC) supplementary service. The stage 1 and stage 2 aspects are detailed in ETSs 300 178 to 180and ETS 300 181, respectively.The present version updates the references to the basic call specifications.SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)5National 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 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)61ScopeThis first part of EN 300 182 specifies the stage three of the Advice of Charge (AOC) supplementary service for the pan-European Integrated Services Digital Network (ISDN) as provided by European public telecommunications operators atthe T reference point or coincident S and T reference point (as defined in CCITT Recommendation I.411 [1]) by means ofthe Digital Subscriber Signalling System No. one (DSS1). Stage three identifies the protocol procedures and switchingfunctions needed to support a telecommunications 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.Three AOC supplementary services exist:a)Charging information at call set-up time (AOC-S)The AOC-S supplementary service enables a user to receive information about the charging rates at call set-uptime and also to receive further information during the call if there is a change of charging rates.b)Charging information during the call (AOC-D)The AOC-D supplementary service enables a user to receive information on the recorded charges for a call duringthe active phase of the call.c)Charging information at the end of the call (AOC-E)The AOC-E supplementary service enables a user to receive information on the recorded charges for a call whenthe call is terminated.The AOC supplementary service is applicable to all circuit-switched 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 AOC supplementary service, to be attached at either sideof 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.), 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]CCITT Recommendation I.411 (1988): "ISDN user-network interfaces - Reference configurations".[2]CCITT Recommendation I.130 (1988): "Method for the characterisation of telecommunicationservices supported by an ISDN and network capabilities of an ISDN".[3]CCITT Recommendation I.112: "Vocabulary of terms for ISDNs".SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)7[4]CCITT Recommendation I.210: "Principles of telecommunication services supported by an ISDNand the means to describe them".[5]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]".[6]ETS 300 178 (1992): "Integrated Services Digital Network (ISDN); Advice of Charge: charginginformation at call set-up time (AOC-S); Service description".[7]ETS 300 179 (1992): "Integrated Services Digital Network (ISDN); Advice of Charge: charginginformation during the call (AOC-D); Service description".[8]ETS 300 180 (1992): "Integrated Services Digital Network (ISDN); Advice of Charge: charginginformation at the end of the call (AOC-E); Service description".[9]CCITT Recommendation X.208 (1988): "Specification of Abstract Syntax Notation One (ASN.1)".[10]CCITT Recommendation X.219 (1988): "Remote Operations: Model, Notation and ServiceDefinitions".[11]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".[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]CCITT Recommendation Z.100 (1988): "Functional Specification and Description Language(SDL)".3DefinitionsFor the purposes of the present document, the following definitions apply:activation: Implies either a user request for AOC supplementary service(s) or a network performed activation of thesubscribed AOC supplementary service(s) whenever the served user makes an outgoing call.NOTE 1:The stage 1 description, as specified in ETS 300 178 [6], ETS 300 179 [7] and ETS 300 180 [8], definesactivation as being performed at the time of subscription.basic communication: This charged item indicates the rate to be applied for the connection to the called user.billing identification: Elements for billing identification inform the served user that the associated charges have beenincurred due to the indicated situation (e.g. a call that has been forwarded at the served user's access).call attempt: This charged item indicates the cost applied for a call which has been sent to the called user, but the calleduser has not yet answered the call.call control message: A message as defined in ETS 300 403-1 [5], subclause 3.1, which on sending or receipt causes achange of the call state at either the network or the user.call setup: This charged item indicates the cost applied for the connection to the called user when the called user answersthe call.charging information: Information sent to a user in an invoke component or a return result component showing charging-related information (i.e. either charging rate information, special charging rates, or the recorded charges for the call).continuous: See subclause A.2.3.1 of ETS 300 178 [6].flat rate: This specific rate indicates a fixed currency value per event.Integrated Services Digital Network (ISDN): See CCITT Recommendation I.112 [3], § 2.3, definition 308.SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)8invocation: Implies the sending of charging information from the network to the served user.NOTE 2:The stage 1 description, as specified in ETS 300 178 [6], ETS 300 179 [7] and ETS 300 180 [8], definesinvocation as either a user request for an AOC supplementary service or as the network invocation for allcalls.invoke component: See EN 300 196-1 [11], subclause 8.2.2.1.network: The DSS1 protocol entity at the network side of the user-network interface.operation of supplementary services: This charged item indicates the cost applied for the operation of requestedsupplementary services.recorded charges: This information indicates the number of charging units or currency units incurred for a call.return error component: See EN 300 196-1 [11], subclause 8.2.2.3.return result component: See EN 300 196-1 [11], subclause 8.2.2.2.served user: The user of a particular ISDN number, who is requesting that charging information should be provided (forall calls or on request).service: Telecommunications service: see CCITT Recommendation I.112 [3], § 2.2, definition 201.special charging arrangement: This charged item indicates that a special charging arrangement exists for calculating thecost of the call.NOTE 3:The use of this charged item is outside the scope of the standard. It is a matter for the network operator andthe user to which it is sent.special charging code: This specific code indicates a rate which can identify a charging algorithm that can be used as abasis for determining the cost of a call.step function: See subclause A.2.3.1 of ETS 300 178 [6].supplementary service: See CCITT Recommendation I.210 [4], § 2.4.user: The DSS1 protocol entity at the user side of the user-network interface.user-to-user information transfer: This charged item indicates the rate to be applied to the transfer of user-to-userinformation.4AbbreviationsFor the purposes of the present document, the following abbreviations apply:AOCAdvice of ChargeAOC-DAOC during the callAOC-EAOC at the end of the callAOC-SAOC at call set-up timeASN.1Abstract Syntax Notation OneDSS1Digital Subscriber Signalling System No. oneISDNIntegrated Services Digital Network5Description5.1General descriptionDepending on subscription by the served user, charging information for any of the three supplementary services may beprovided either:SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)9-for all calls; or-for any call, after a user request to provide charging information.The charging information given shall relate to the charges incurred on the network to which the user is attached.Charging information for applications using higher layer protocols which are not defined as teleservices, shall be basedon the bearer services specified.5.2Charging information at call set-up time (AOC-S)When the AOC-S supplementary service is activated, the network shall provide the user with information about thecharging rates at call establishment. In addition, the network shall inform the served user if a change in charging ratestakes place during the call.The network shall provide the charging information during call establishment or at the latest at call connection. Whenthere is a change in the charging rate during the call, the network shall send information about the new charging rate to theserved user.5.3Charging information during the call (AOC-D)When the AOC-D supplementary service is activated, the network shall provide the user with charging information for acall during the active phase of a call. The network shall provide the charging information and transfer it to the served userin an appropriate message. The supplied charging information shall be provided as a cumulative charge incurred so far forthe call (i.e. charges recorded from the start of the call and until the moment the charging information is sent to the serveduser).When the call is released, the network shall send the recorded charges for the call to the served user in one of the callcontrol messages clearing the call.If the network has determined that the call is free of charge, then the network shall send a free-of-charge indication in thefirst subsequent message sent to the served user. The network shall not send any further charging information during thecall. When the call is released, the network shall send the charged amount (zero) in a call control message clearing thecall.5.4Charging information at the end of the call (AOC-E)When the AOC-E supplementary service is activated, the network shall provide the served user with charging informationindicating the recorded charges for a call when the call is released. The network shall send the charging information to theserved user in one of the call control messages clearing the call.6Operational requirements6.1Provision and withdrawalThese supplementary services shall be provided separately by arrangement with the service provider or be generallyavailable. Withdrawal of the service shall be made at subscriber request or for administrative reasons.The following subscription options exist for each of the three AOC supplementary services, as defined in table 1.Table 1: Advice of charge subscription optionsSubscription optionsValueProvision of service1. For all calls; or2. On request on a per call basis.SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)106.2Requirements on the originating network sideFor the purpose of the present document, the served user of the AOC supplementary service is connected to the originatingnetwork.The originating network shall make available the type of charging information that is indicated, related to a certain call.The originating network shall assemble the appropriate charging information, according to the service requirements, andsend it to the user.NOTE:The charging information may either be generated at the originating network, or generated elsewhere andsent to the originating network, in due time for the information to be provided to the user according to theprocedures of the present document.The network shall only include a charged item if the charged item contains information concerning the charges applied tothat call.The network shall only use those charged items which are appropriate to that network charging mechanism. Thus, in somenetworks, the network may, but need not, send some of these items, or combinations of items. Different networks couldgive information about the same call in different ways.If the served user suspends a call, then, as a network option, the originating network shall retain the charging informationfor the suspended call as long as the network retains the call identity of the suspended call of the served user.6.3Requirements on the destination network sideNone identified.7Coding requirements7.1GeneralThe charging information that the network shall convey to the served user may consist of a number of information units.The information to be transferred is specified in clause 5 of the stage 1 service descriptions ETS 300 178 [6],ETS 300 179 [7], and ETS 300 180 [8].7.2Coding of the Facility information element componentsTable 2 shows the definition of the operations and errors required for the AOC supplementary service using AbstractSyntax Notation one (ASN.1) as defined in CCITT Recommendation X.208 [9] and using the OPERATION and ERRORmacro as defined in CCITT Recommendation X.219 [10], figure 4/X.219.The formal definition of the component types to encode these operations and errors is provided in EN 300 196-1 [11],annex D, clause D.1.The inclusion of components in Facility information elements is defined in EN 300 196-1 [11], subclause 11.1.Table 2: Definition of operations and errors for the AOC supplementary servicesAdvice-of-Charge-Operations {ccitt identified-organization etsi (0) 182 operations-and-errors(1)}DEFINITIONS IMPLICIT TAGS ::=BEGINEXPORTSChargingRequest, AOCSCurrency, AOCSSpecialArr,AOCDCurrency, AOCDChargingUnit, AOCECurrency, AOCEChargingUnit,NoChargingInfoAvailable, ChargingAssociation;IMPORTSOPERATION, ERRORSIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)11FROM Remote-Operation-Notation{joint-iso-ccitt remote-operations (4) notation (0)}notSubscribed, notAvailable, notImplemented, invalidCallStateFROM General-Errors{ccitt identified-organization etsi (0) 196 general-errors (2)}PartyNumberFROM Addressing-Data-Elements{ccitt identified-organization etsi (0) 196 addressing-data-elements (6)};ChargingRequest ::= OPERATIONARGUMENT ChargingCaseRESULT CHOICE {AOCSCurrencyInfoList,AOCSSpecialArrInfo,chargingInfoFollows NULL}ERRORS {notSubscribed, notAvailable, notImplemented,invalidCallState, NoChargingInfoAvailable}AOCSCurrency ::= OPERATION-- AOC-S given in currency unitsARGUMENT CHOICE {chargeNotAvailable NULL,AOCSCurrencyInfoList }AOCSSpecialArr ::= OPERATION-- AOC-S for special charging arrangementARGUMENT CHOICE {chargeNotAvailable NULL,AOCSSpecialArrInfo }AOCDCurrency ::= OPERATION-- AOC-D given in currency unitsARGUMENT CHOICE {chargeNotAvailable NULL,AOCDCurrencyInfo }AOCDChargingUnit ::= OPERATION-- AOC-D given in charging unitsARGUMENT CHOICE {chargeNotAvailable NULL,AOCDChargingUnitInfo }AOCECurrency ::= OPERATION-- AOC-E given in currency unitsARGUMENT CHOICE {chargeNotAvailable NULL,AOCECurrencyInfo }AOCEChargingUnit ::= OPERATION-- AOC-E given in charging unitsARGUMENT CHOICE {chargeNotAvailable NULL,AOCEChargingUnitInfo }ChargingCase::=ENUMERATED {chargingInformationAtCallSetup (0),chargingDuringACall (1),chargingAtTheEndOfACall (2) }Table 2 (continued): Definition of operations and errors for the AOC supplementary servicesAOCSCurrencyInfoList::=SEQUENCE SIZE (1.10) OF AOCSCurrencyInfoAOCSCurrencyInfo::=SEQUENCE {chargedItem ChargedItem,CHOICE {specificCurrency CHOICE {durationCurrency[1] DurationCurrency,flatRateCurrency[2] FlatRateCurrency,volumeRateCurrency[3] VolumeRateCurrency},specialChargingCodeSpecialChargingCode,freeOfCharge[4] NULL,currencyInfoNotAvailable[5] NULL} }AOCSSpecialArrInfo::=INTEGER (1.10)ChargedItem::=ENUMERATED {basicCommunication (0),callAttempt (1),callSetup (2),userToUserInfo (3),operationOfSupplementaryServ (4) }SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)12DurationCurrency::=SEQUENCE {dCurrency[1]Currency,dAmount[2]Amount,dChargingType[3]ChargingType,dTime[4]Time,dGranularity[5]Time OPTIONAL }FlatRateCurrency::=SEQUENCE {fRCurrency[1]Currency,fRAmount[2]Amount }VolumeRateCurrency::=SEQUENCE {vRCurrency[1]Currency,vRAmount[2]Amount,vRVolumeUnit[3]VolumeUnit}SpecialChargingCode::=INTEGER (1.10)AOCDCurrencyInfo::=CHOICE {specificCurrency SEQUENCE {recordedCurrency[1] RecordedCurrency,typeOfChargingInfo[2] TypeOfChargingInfo,aOCDBillingId[3] AOCDBillingId OPTIONAL },freeOfCharge[1] NULL}AOCDChargingUnitInfo::=CHOICE {specificChargingUnits SEQUENCE {recordedUnitsList[1] RecordedUnitsList,typeOfChargingInfo[2] TypeOfChargingInfo,aOCDBillingId[3] AOCDBillingId OPTIONAL },freeOfCharge[1] NULL}RecordedCurrency::=SEQUENCE {rCurrency[1]Currency,rAmount[2]Amount }RecordedUnitsList::=SEQUENCE SIZE (1.32) OF RecordedUnitsTypeOfChargingInfo::=ENUMERATED {subTotal(0),total (1)}RecordedUnits::=SEQUENCE {CHOICE{recordedNumberOfUnitsNumberOfUnits,notAvailableNULL},recordedTypeOfUnitsTypeOfUnit OPTIONAL }AOCDBillingId::=ENUMERATED {normalCharging(0),reverseCharging(1),creditCardCharging (2)}SIST EN 300 182-1:2000



ETSIEN 300 182-1 V1.2.4 (1998-06)13Table 2 (continued): Definition of operations and errors for the AOC supplementary servicesAOCECurrencyInfo::=SEQUENCE {CHOICE {specificCurrency SEQUENCE {recordedCurrency[1] RecordedCurrency,aOCEBillingId[2] AOCEBillingId OPTIONAL},freeOfCharge[1] NULL},chargingAssociationChargingAssociation OPTIONAL}AOCEChargingUnitInfo ::=SEQUENCE {CHOICE {specificChargingUnits SEQUENCE {recordedUnitsList[1] RecordedUnitsList,aOCEBillingId[2] AOCEBillingId OPTIONAL},freeOfCharge[1] NULL},chargingAssociationChargingAssociation OPTIONAL}AOCEBillingId::=ENUMERATED {normalCharging(0),reverseCharging(1),creditCardCharging(2),callForwardingUnconditional(3),callForwardingBusy(4),callForwardingNoReply(5),callDeflection(6),callTransfer(7)}Currency::=IA5String (SIZE (1.10))Amount::=SEQUENCE {currencyAmount[1]CurrencyAmount,multiplier[2]Multiplier}CurrencyAmount::=INTEGER (0.16777215)Multiplier::=ENUMERATED {oneThous
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