ITU-TH.248.23Corrigendum1(052006)(英)Clarificationsregarding…….pdf

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1、InternationalTelecommunicationUnionITU-TH.248.23TELECOMMUNICATIONCorrigendum1STANDARDIZATIONSECTOR(05/2006)OFITUSERIESH:AUDIOVISUALANDMULTIMEDIASYSTEMSInfrastructureofaudiovisualservices–CommunicationproceduresGatewaycontrolprotocol:EnhancedAlertingpackagesCorrigendum1:Clarificationsregar

2、dingdwasignalintheandisppackageITU-TRecommendationH.248.23(2005)–Corrigendum1ITU-TH-SERIESRECOMMENDATIONSAUDIOVISUALANDMULTIMEDIASYSTEMSCHARACTERISTICSOFVISUALTELEPHONESYSTEMSH.100–H.199INFRASTRUCTUREOFAUDIOVISUALSERVICESGeneralH.200–H.219TransmissionmultiplexingandsynchronizationH.220–H.

3、229SystemsaspectsH.230–H.239CommunicationproceduresH.240–H.259CodingofmovingvideoH.260–H.279RelatedsystemsaspectsH.280–H.299SystemsandterminalequipmentforaudiovisualservicesH.300–H.349DirectoryservicesarchitectureforaudiovisualandmultimediaservicesH.350–H.359Qualityofservicearchitecturefo

4、raudiovisualandmultimediaservicesH.360–H.369SupplementaryservicesformultimediaH.450–H.499MOBILITYANDCOLLABORATIONPROCEDURESOverviewofMobilityandCollaboration,definitions,protocolsandproceduresH.500–H.509MobilityforH-SeriesmultimediasystemsandservicesH.510–H.519Mobilemultimediacollaboratio

5、napplicationsandservicesH.520–H.529SecurityformobilemultimediasystemsandservicesH.530–H.539SecurityformobilemultimediacollaborationapplicationsandservicesH.540–H.549MobilityinterworkingproceduresH.550–H.559Mobilemultimediacollaborationinter-workingproceduresH.560–H.569BROADBANDANDTRIPLE-P

6、LAYMULTIMEDIASERVICESBroadbandmultimediaservicesoverVDSLH.610–H.619Forfurtherdetails,pleaserefertothelistofITU-TRecommendations.ITU-TRecommendationH.248.23Gatewaycontrolprotocol:EnhancedAlertingpackagesCorrigendum1ClarificationsregardingdwasignalintheandisppackageSummaryThisRecommendation

7、definestwopackagesthatprovideenhancedalertinganddatatransfercapabilitiesforITU-TRec.H.248.Corrigendum1clarifiestherelationshipbetweendatatransferandalertingwhenusingthedwasignalintheandisppackage.Italsoresolvesaconflictinthetextaboutthedefaultpatternforthedwasignal.