ITU-T H.450.8 (02 2000) (英) Name identification supplementary……

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1、INTERNATIONALTELECOMMUNICATIONUNIONH.450.8TELECOMMUNICATION(02/00)STANDARDIZATIONSECTOROFITUSERIESH:AUDIOVISUALANDMULTIMEDIASYSTEMSSupplementaryservicesformultimediaNameidentificationsupplementaryserviceforH.323ITU-TRecommendationH.450.8(PreviouslyCCITTR

2、ecommendation)ITU-TH-SERIESRECOMMENDATIONSAUDIOVISUALANDMULTIMEDIASYSTEMSCharacteristicsoftransmissionchannelsusedforotherthantelephonepurposesH.10–H.19Useoftelephone-typecircuitsforvoice-frequencytelegraphyH.20–H.29Telephonecircuitsorcablesusedforvariou

3、stypesoftelegraphtransmissionorH.30–H.39simultaneoustransmissionTelephone-typecircuitsusedforfacsimiletelegraphyH.40–H.49CharacteristicsofdatasignalsH.50–H.99CHARACTERISTICSOFVISUALTELEPHONESYSTEMSH.100–H.199INFRASTRUCTUREOFAUDIOVISUALSERVICESGeneralH.20

4、0–H.219TransmissionmultiplexingandsynchronizationH.220–H.229SystemsaspectsH.230–H.239CommunicationproceduresH.240–H.259CodingofmovingvideoH.260–H.279RelatedsystemsaspectsH.280–H.299SystemsandterminalequipmentforaudiovisualservicesH.300–H.399Supplementary

5、servicesformultimediaH.450–H.499Forfurtherdetails,pleaserefertoITU-TListofRecommendations.ITU-TRECOMMENDATIONH.450.8NAMEIDENTIFICATIONSUPPLEMENTARYSERVICEFORH.323SummaryThisRecommendationdescribesNameIdentificationfeaturesforH.323systems.Thesefeaturesare

6、:•CallingPartyNamePresentationandRestriction.•ConnectedPartyNamePresentationandRestriction.•AlertingPartyNamePresentationandRestriction.•BusyPartyNamePresentationandRestriction.Callingpartynameinformationmaybeprovidedbythecallingendpointorbythegatekeeper

7、usingthegatekeeperroutedcallmodel.Connectedpartynameinformation,alertingpartynameinformation,orbusypartynameinformationmaybeprovidedbytheanswering(connected)party,alertingparty,orbusyparty,respectively,orbythegatekeeperusingthegatekeeperroutedcallmodel.S

8、ourceITU-TRecommendationH.450.8waspreparedbyITU-TStudyGroup16(1997-2000)andwasapprovedundertheWTSCResolutionNo.1procedureon17February2000.RecommendationH.450.8(02/00)iFOREWORDITU(InternationalTelecommunicationUnion)istheUn