ITU-TH.225.0(052006)(英)Callsignallingprotocols…….pdf

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1、InternationalTelecommunicationUnionITU-TH.225.0TELECOMMUNICATION(05/2006)STANDARDIZATIONSECTOROFITUSERIESH:AUDIOVISUALANDMULTIMEDIASYSTEMSInfrastructureofaudiovisualservices–TransmissionmultiplexingandsynchronizationCallsignallingprotocolsandmediastreampacketiz

2、ationforpacket-basedmultimediacommunicationsystemsITU-TRecommendationH.225.0ITU-TH-SERIESRECOMMENDATIONSAUDIOVISUALANDMULTIMEDIASYSTEMSCHARACTERISTICSOFVISUALTELEPHONESYSTEMSH.100–H.199INFRASTRUCTUREOFAUDIOVISUALSERVICESGeneralH.200–H.219Transmissionmultiplexin

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

4、imediaservicesH.350–H.359QualityofservicearchitectureforaudiovisualandmultimediaservicesH.360–H.369SupplementaryservicesformultimediaH.450–H.499MOBILITYANDCOLLABORATIONPROCEDURESOverviewofMobilityandCollaboration,definitions,protocolsandproceduresH.500–H.509Mob

5、ilityforH-SeriesmultimediasystemsandservicesH.510–H.519MobilemultimediacollaborationapplicationsandservicesH.520–H.529SecurityformobilemultimediasystemsandservicesH.530–H.539SecurityformobilemultimediacollaborationapplicationsandservicesH.540–H.549Mobilityinter

6、workingproceduresH.550–H.559Mobilemultimediacollaborationinter-workingproceduresH.560–H.569BROADBANDANDTRIPLE-PLAYMULTIMEDIASERVICESBroadbandmultimediaservicesoverVDSLH.610–H.619Forfurtherdetails,pleaserefertothelistofITU-TRecommendations.ITU-TRecommendationH.2

7、25.0Callsignallingprotocolsandmediastreampacketizationforpacket-basedmultimediacommunicationsystemsSummaryThisRecommendationcoversthetechnicalrequirementsfornarrow-bandvisualtelephoneservicesdefinedinH.200andF.720-seriesRecommendations,inthosesituationswherethe

8、transmissionpathincludesoneormorepacket-basednetworks,eachofwhichisconfiguredandmanagedtoprovideanon-guaranteedQualityofService(QoS)whichisnotequivalenttothatofN-ISDN,suchth