Home>ITU Q.953.3:1997

ITU Q.953.3:1997

ITU Q.953.3:1997 Stage 3 Description For Call Completion Supplementary Services Using Dss 1 - Completion Of Calls To Busy Subscribers (ccbs) Defines stage three of the Completion of Calls to Busy Subscribers (CCBS) supplementary service for the Integrated Services Digital Network (ISDN) at the T reference point or coincident S and T refere

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Table of Contents

3.1Scope
3.2References
3.3Definitions
3.4Abbreviations
3.5Description
3.6Operationalrequirements
3.6.1Provision/withdrawal
3.6.2Requirementsontheoriginatingnetworkside
3.6.3Requirementsonthedestinationnetworkside
3.7Codingrequirements
3.8Statedefinitions
3.8.1Userstates
3.8.2Networkstates
3.9SignallingproceduresatthecoincidentSandTreference
point
3.9.1Proceduresattheserveduser'sinterface
3.9.2Proceduresattheremoteuser'snetworkinterface
3.10ProceduresforinterworkingwithprivateISDNs
3.10.1ProceduresfortheoriginatingTreference
point
3.10.2ProceduresforthedestinationTreference
point
3.11Interactionswithothernetworks
3.11.1Interactionswithnon-ISDNs
3.12Interactionswithothersupplementaryservices
3.12.1CallWaiting(CW)
3.12.2ExplicitCallTransfer(ECT)
3.12.3ConnectedLineIdentificationPresentation
(COLP)
3.12.4ConnectedLineIdentificationRestriction
(COLR)
3.12.5CallingLineIdentificationPresentation
(CLIP)
3.12.5CallingLineIdentificationPresentation(CLIR)
3.12.6CallingLineIdentificationRestriction(CLIR)
3.12.7ClosedUserGroup(CUG)
3.12.8Conferencecalling(CONF)
3.12.9Direct-Dialling-In(DDI)
3.12.10Calldiversion(callforwarding)services
3.12.11LineHunting(LH)
3.12.12Three-Partyservice(3PTY)
3.12.13User-to-UserSignalling(UUS)
3.12.14MultipleSubscribernumber(MSN)
3.12.15CallHold(HOLD)
3.12.16AdviceofChaRGE(AOC)
3.12.17Sub-Addressing(SUB)
3.12.18TerminalPortability(TP)
3.12.19CompletionofCallstoBusySubscribers(CCBS)
3.12.20MaliciousCallIdentification(MCID)
3.12.21Reversecharging(REV)
3.12.22Multi-levelPrecedenceandPreemption(MLPP)
3.12.23SupportofPrivateNumberingPlan(SPNP)
3.12.24InternationalTelecommunicationChargeCard
(ITCC)
3.12.25GlobalVirtualNetworkService(GVNS)
3.13Parametervalues(Timers)
3.14Dynamicdescription(SDLs)
AppendixI-Signallingflows

Abstract

Defines stage three of the Completion of Calls to Busy Subscribers (CCBS) supplementary service for the Integrated Services Digital Network (ISDN) at the T reference point or coincident S and T reference point using the Digital Subscriber Signalling System No. 1 (DSS 1) protocol. Stage three identifies the protocol methods and switching functions required for supporting a telecommunication service.

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