ITU-T I.259.1 (07 1996) (英) Screening supplementar

INTERNATIONALTELECOMMUNICATIONUNION)454)TELECOMMUNICATIONSTANDARDIZATIONSECTOROFITU(07/96)SERIESI:INTEGRATEDSERVICESDIGITALNETWORKServicecapabilities–SupplementaryservicesinISDN3CREENINGSUPPLEMENTARYSERVICES!DDRESSSCREENING!$3 ITU-TRecommendationI.259-1(PreviouslyCCITTRecommendation)ITU-TI-SERIESRECOMMENDATIONS).4%'2!4%$3%26)#%3$)')4!,.%47/2+Forfurtherdetails,pleaserefertoITU-TListofRecommendations.GENERALSTRUCTUREI.100–I.199TerminologyI.110–I.119DescriptionofISDNsI.120–I.129GeneralmodellingmethodsI.130–I.139TelecommunicationnetworkandserviceattributesI.140–I.149GeneraldescriptionofasynchronoustransfermodeI.150–I.199SERVICECAPABILITIESI.200–I.299ScopeI.200–I.209GeneralaspectsofservicesinISDNI.210–I.219CommonaspectsofservicesintheISDNI.220–I.229BearerservicessupportedbyanISDNI.230–I.239TeleservicessupportedbyanISDNI.240–I.2493UPPLEMENTARYSERVICESIN)3$.))OVERALLNETWORKASPECTSANDFUNCTIONSI.300–I.399NetworkfunctionalprinciplesI.310–I.319ReferencemodelsI.320–I.329Numbering,addressingandroutingI.330–I.339ConnectiontypesI.340–I.349PerformanceobjectivesI.350–I.359ProtocollayerrequirementsI.360–I.369GeneralnetworkrequirementsandfunctionsI.370–I.399ISDNUSER-NETWORKINTERFACESI.400–I.499ApplicationofI-seriesRecommendationstoISDNuser-networkinterfacesI.420–I.429Layer1RecommendationsI.430–I.439Layer2RecommendationsI.440–I.449Layer3RecommendationsI.450–I.459Multiplexing,rateadaptionandsupportofexistinginterfacesI.460–I.469AspectsofISDNaffectingterminalrequirementsI.470–I.499INTERNETWORKINTERFACESI.500–I.599MAINTENANCEPRINCIPLESI.600–I.699B-ISDNEQUIPMENTASPECTSI.700–I.799ATMequipmentI.730–I.749ManagementofATMequipmentI.750–I.799SummaryAddressScreening(ADS)isasupplementaryservicethatcanbeprovidedinassociationtoadatatransferservice.Itprovidesrestrictionsontheusersendingdataunitstocertaindestinationusersand/ortheuserreceivingdataunitsfromcertainsourceusers.SourceITU-TRecommendationI.259.1waspreparedbyITU-TStudyGroup1(1993-1996)andwasapprovedundertheWTSCResolutionN°1procedureonthe19thofJuly1996.ITU-TRECOMMENDATIONI.259.1SCREENINGSUPPLEMENTARYSERVICES:ADDRESSSCREENING(ADS)iiRecommendationI.259.1(07/96)FOREWORDITU(InternationalTelecommunicationUnion)istheUnitedNationsSpecializedAgencyinthefieldoftelecommunications.TheITUTelecommunicationStandardizationSector(ITU-T)isapermanentorganoftheITU.Some179membercountries,84telecomoperatingentities,145scientificandindustrialorganizationsand38internationalorganizationsparticipateinITU-Twhichisthebodywhichsetsworldtelecommunicationsstandards(Recommendations).TheapprovalofRecommendationsbytheMembersofITU-TiscoveredbytheprocedurelaiddowninWTSCResolutionNo.1(Helsinki,1993).Inaddition,theWorldTelecommunicationStandardizationConference(WTSC),whichmeetseveryfouryears,approvesRecommendationssubmittedtoitandestablishesthestudyprogrammeforthefollowingperiod.InsomeareasofinformationtechnologywhichfallwithinITU-T’spurview,thenecessarystandardsarepreparedonacollaborativebasiswithISOandIEC.NOTEInthisRecommendation,theexpression“Administration”isusedforconcisenesstoindicatebothatelecommunicationadministrationandarecognizedoperatingagency.ITU1996Allrightsreserved.Nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromtheITU.RecommendationI.259.1(07/96)iiiCONTENTSPage1Definition.....................................................................................................................12Description...................................................................................................................12.1Generaldescription......................................................................................................12.1.1DAscreeningofindividuallyaddresseddataunits........................................12.1.2DAscreeningofgroupaddresseddataunits..................................................12.1.3SAscreeningofdataunits..............................................................................12.2Specificterminology....................................................................................................12.3Symbolsandabbreviations..........................................................................................22.4Qualificationontheapplicabilitytotelecommunicationservices...............................23Procedures....................................................................................................................23.1Provision/withdrawal...................................................................................................23.2Normalprocedures.......................................................................................................33.2.1Activation/deactivation/registration...............................................................33.2.2Erasure............................................................................................................33.2.3Invocationandoperation................