1 Scope2 References3 Definitions4 Abbreviations5 General5.1 Master-slave determination5.2 Capability exchange5.3 Logical channel signalling procedures5.4 Receive terminal close logical channel request5.5 H.223 multiplex table entry modification5.6 Audiovisual and data mode request5.7 Round trip delay determination5.8 Maintenance loops5.9 Commands and indications6 Messages: syntax7 Messages: semantic definitions7.1 Master Slave Determination messages7.1.1 Master Slave Determination7.1.2 Master Slave Determination Acknowledge7.1.3 Master Slave Determination Reject7.1.4 Master Slave Determination Release7.2 Terminal capability messages7.2.1 Overview7.2.2 Terminal Capability Set7.2.2.1 Capability Table7.2.2.2 Capability Descriptors7.2.2.3 Capability7.2.2.4 Multiplex Capabilities7.2.2.5 Video CapabilitiesIf present, enhancementLayerInfo indicates the capability of the encoder to transmit, or the decoder to receive, bitstreams with the optional scalability mode (Annex O) of H.263. enhancementLayerInfo is a sequence which indicates the configuration parameters of the scalability mode.Examples of H263Capability structure settingsbaseBitRateConstrained indicates whether the base layer is constrained not to exceed the maximum bit rate in the video capability minus the sum of the maximum bit rate in each of the enhancement options.7.2.2.6 Audio Capabilities7.2.2.7 Data Application Capabilities7.2.2.8 Encryption, Authentication and Integrity Capabilities7.2.2.9 Conference Capabilities7.2.2.10 User Input Capabilities7.2.3 Terminal Capability Set Acknowledge7.2.4 Terminal Capability Set Reject7.2.5 Terminal Capability Set Release7.3 Logical channel signalling messages7.3.1 Open Logical Channel7.3.2 Open Logical Channel Acknowledge7.3.3 Open Logical Channel Reject7.3.4 Open Logical Channel Confirm7.3.5 Close Logical Channel7.3.6 Close Logical Channel Acknowledge7.3.7 Request Channel Close7.3.8 Request Channel Close Acknowledge7.3.9 Request Channel Close Reject7.3.10 Request Channel Close Release7.4 Multiplex Table signalling messages7.4.1 Multiplex Entry Send7.4.2 Multiplex Entry Send Acknowledge7.4.3 Multiplex Entry Send Reject7.4.4 Multiplex Entry Send Release7.5 Request Multiplex Table signalling messages7.5.1 Request Multiplex Entry7.5.2 Request Multiplex Entry Acknowledge7.5.3 Request Multiplex Entry Reject7.5.4 Request Multiplex Entry Release7.6 Request Mode messages7.6.1 Request Mode7.6.1.1 Video Mode7.6.1.2 Audio Mode7.6.1.3 Data Mode7.6.1.4 Encryption Mode7.6.2 Request Mode Acknowledge7.6.3 Request Mode Reject7.6.4 Request Mode Release7.7 Round Trip Delay messages7.7.1 Round Trip Delay Request7.7.2 Round Trip Delay Response7.8 Maintenance Loop messages7.8.1 Maintenance Loop Request7.8.2 Maintenance Loop Acknowledge7.8.3 Maintenance Loop Reject7.8.4 Maintenance Loop Command Off7.9 Communication Mode Messages7.9.1 Communication Mode Command7.9.2 Communication Mode Request7.9.3 Communication Mode Response7.10 Conference Request and Response Messages7.10.1 Terminal List Request7.10.2 Terminal List Response7.10.3 Make Me Chair7.10.4 Cancel Make Me Chair7.10.5 Make Me Chair Response7.10.6 Drop Terminal7.10.7 Terminal Drop Reject7.10.8 RequestTerminal ID7.10.9 MC Terminal ID Response7.10.10 Enter H.243 Password Request7.10.11 Password Response7.10.12 Enter H.243 Terminal ID Request7.10.13 Terminal ID Response7.10.14 Enter H.243 Conference ID Request7.10.15 Conference ID Response7.10.16 Video Command Reject7.10.17 Enter Extension Address Request7.10.18 Extension Address Response7.10.19 Request Chair Control Token Owner7.10.20 Chair Token Owner Response7.10.21 Request Terminal Certificate7.10.22 Terminal Certificate Response7.10.23 Broadcast My Logical Channel7.10.24 Broadcast My Logical Channel Response7.10.25 Make Terminal Broadcaster7.10.26 Make Terminal Broadcaster Response7.10.27 Send This Source7.10.28 SendThis Source Response7.10.29 Request All Terminals Ids7.10.30 Request All Terminal Ids Response7.10.31 RemoteMC Request7.10.32 RemoteMC Response7.11 Commands7.11.1 Send Terminal Capability Set7.11.2 Encryption7.11.3 Flow Control7.11.4 End session7.11.5 Miscellaneous Command7.11.6 Conference Command7.11.7 H.223 Multiplex Reconfiguration7.12 Indications7.12.1 Function Not Understood7.12.2 Miscellaneous Indication7.12.3 Jitter Indication7.12.4 H.223 Skew Indication7.12.5 New ATM Virtual Channel Indication7.12.6 User Input7.12.7 Conference Indications7.12.8 H2250 Maximum Logical Channel Skew7.12.9 MC Location Indication7.12.10 Vendor Identification Indication7.12.11 Function Not Supported8 Procedures8.1 Introduction8.1.1 Method of specification8.1.2 Communication between protocol entity and protocol user8.1.3 Peer-to-peer communication8.1.4 SDL Diagrams8.1.5 SDL Key8.2 Master slave determination procedures8.2.1 Introduction8.2.1.1 Protocol overview - initiation by local user8.2.1.2 Protocol overview - initiation by remote user8.2.1.3 Protocol overview - simultaneous initiation8.2.1.4 Status determination procedure8.2.2 Communication between the MSDSE and the MSDSE user8.2.2.1 Primitives between the MSDSE and the MSDSE user8.2.2.2 Primitive definition8.2.2.3 Parameter definition8.2.2.4 MSDSE states8.2.2.5 State transition diagram8.2.3 Peer to peer MSDSE communication8.2.3.1 MSDSE messages8.2.3.2 MSDSE state variables8.2.3.3 MSDSE timers8.2.3.4 MSDSE counters8.2.4 MSDSE procedures8.2.4.1 Introduction8.2.4.2 Primitive parameter default values8.2.4.3 Message field default values8.2.4.4 ERRCODE parameter values8.2.4.5 SDLs8.3 Capability exchange procedures8.3.1 Introduction8.3.1.1 Protocol overview - out-going CESE8.3.1.2 Protocol overview - in-coming CESE8.3.2 Communication between CESE and CESE user8.3.2.1 Primitives between CESE and CESE user8.3.2.2 Primitive definition8.3.2.3 Parameter definition8.3.2.4 CESE states8.3.2.5 State transition diagram8.3.3 Peer to peer CESE communication8.3.3.1 Messages8.3.3.2 CESE state variables8.3.3.3 CESE timers8.3.4 CESE procedures8.3.4.1 Primitive parameter default values8.3.4.2 Message field default values8.3.4.3 SDLs8.4 Uni-directional Logical Channel signalling procedures8.4.1 Introduction8.4.1.1 Protocol overview8.4.1.2 Protocol overview - in-coming LCSE8.4.1.3 Conflict resolution8.4.2 Communication between the LCSE and the LCSE user8.4.2.1 Primitives between the LCSE and the LCSE user8.4.2.2 Primitive definition8.4.2.3 Parameter definition8.4.2.4 LCSE states8.4.2.5 State transition diagram8.4.3 Peer to peer LCSE communication8.4.3.1 LCSE