ITU-TH.248.12Amendment2(082007)(英)Transportmechanism.pdf

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1、InternationalTelecommunicationUnionITU-TH.248.12TELECOMMUNICATIONAmendment2STANDARDIZATIONSECTOR(08/2007)OFITUSERIESH:AUDIOVISUALANDMULTIMEDIASYSTEMSInfrastructureofaudiovisualservices–CommunicationproceduresGatewaycontrolprotocol:H.248.1packagesforH.323andH.324interwo

2、rkingAmendment2:TransportmechanismITU-TRecommendationH.248.12(2001)–Amendment2ITU-TH-SERIESRECOMMENDATIONSAUDIOVISUALANDMULTIMEDIASYSTEMSCHARACTERISTICSOFVISUALTELEPHONESYSTEMSH.100–H.199INFRASTRUCTUREOFAUDIOVISUALSERVICESGeneralH.200–H.219Transmissionmultiplexingandsy

3、nchronizationH.220–H.229SystemsaspectsH.230–H.239CommunicationproceduresH.240–H.259CodingofmovingvideoH.260–H.279RelatedsystemsaspectsH.280–H.299SystemsandterminalequipmentforaudiovisualservicesH.300–H.349Directoryservicesarchitectureforaudiovisualandmultimediaservices

4、H.350–H.359QualityofservicearchitectureforaudiovisualandmultimediaservicesH.360–H.369SupplementaryservicesformultimediaH.450–H.499MOBILITYANDCOLLABORATIONPROCEDURESOverviewofMobilityandCollaboration,definitions,protocolsandproceduresH.500–H.509MobilityforH-Seriesmultim

5、ediasystemsandservicesH.510–H.519MobilemultimediacollaborationapplicationsandservicesH.520–H.529SecurityformobilemultimediasystemsandservicesH.530–H.539SecurityformobilemultimediacollaborationapplicationsandservicesH.540–H.549MobilityinterworkingproceduresH.550–H.559Mo

6、bilemultimediacollaborationinter-workingproceduresH.560–H.569BROADBANDANDTRIPLE-PLAYMULTIMEDIASERVICESBroadbandmultimediaservicesoverVDSLH.610–H.619Forfurtherdetails,pleaserefertothelistofITU-TRecommendations.ITU-TRecommendationH.248.12Gatewaycontrolprotocol:H.248.1pac

7、kagesforH.323andH.324interworkingAmendment2TransportmechanismSummaryThisRecommendationdefinesseveralH.248.1packagesthatareintendedforMediaGatewaysdesignedtosupportinterworkingbetweenH.323terminalsandH.324terminals.Morespecifically,thisRecommendationcontains:package"h32

8、4"forcreatingterminationssupportingH.324,package"h245"forcreatingterminationssupportingH.245channelsforH.324calls,pac