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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Is there a state diagram available which shows the state transitioning for all Channel Events and Channel States?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Also, I’ve wrote a simple ESL application which listens for all events happening in FS during a single call, and I’ve been studying the Channel Events/States and the correlation between them. Very useful. I recommend every new ESL developer to do this.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I do have a small question.<o:p></o:p></p><p class=MsoNormal>When using the SendMSG method of ESLConnection to playback a file, the below sequence of events is generated.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Now my question is: is there a way to send some unique string with the sendmsg command and have that one appear in all the other events which are shown below.<o:p></o:p></p><p class=MsoNormal>I need to track the events which share a relationship. CHANNEL_EXECUTE and CHANNEL_EXECUTE_COMPLETE contain a unique Application-UUID, which is good and could suffice, but I haven’t found a way where I can relate the sendmsg command back to these two events.<o:p></o:p></p><p class=MsoNormal>I know there is the Unique-ID header, but I’d like every action to be uniquely identifiable. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Is that possible or am I asking way too much?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>"Command": "sendmsg c48f66c0-e5be-11e3-a832-551ac922334e",<o:p></o:p></p><p class=MsoNormal>"Event-Subclass": "c48f66c0-e5be-11e3-a832-551ac922334e",<o:p></o:p></p><p class=MsoNormal>"call-command": "execute",<o:p></o:p></p><p class=MsoNormal>"execute-app-name": "playback",<o:p></o:p></p><p class=MsoNormal>"execute-app-arg": "/usr/src/freeswitch/sounds/basic/welcome.wav",<o:p></o:p></p><p class=MsoNormal>"event-lock": "true",<o:p></o:p></p><p class=MsoNormal>"Event-Name": "PRIVATE_COMMAND",<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>"Event-Name": "CHANNEL_EXECUTE",<o:p></o:p></p><p class=MsoNormal>"Application": "playback",<o:p></o:p></p><p class=MsoNormal>"Application-Data": "/usr/src/freeswitch/sounds/basic/welcome.wav",<o:p></o:p></p><p class=MsoNormal>"Application-UUID": "ca0df0a8-e5be-11e3-a83e-551ac922334e"<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>"Event-Name": "PLAYBACK_START",<o:p></o:p></p><p class=MsoNormal>"Playback-File-Path": "/usr/src/freeswitch/sounds/basic/welcome.wav",<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>"Event-Name": "PLAYBACK_STOP",<o:p></o:p></p><p class=MsoNormal>"Playback-File-Path": "/usr/src/freeswitch/sounds/basic/welcome.wav",<o:p></o:p></p><p class=MsoNormal>"Playback-Status": "done"<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>"Event-Name": "CHANNEL_EXECUTE_COMPLETE",<o:p></o:p></p><p class=MsoNormal>"Application": "playback",<o:p></o:p></p><p class=MsoNormal>"Application-Data": "/usr/src/freeswitch/sounds/basic/welcome.wav",<o:p></o:p></p><p class=MsoNormal>"Application-Response": "FILE PLAYED",<o:p></o:p></p><p class=MsoNormal>"Application-UUID": "ca0df0a8-e5be-11e3-a83e-551ac922334e"<o:p></o:p></p></div></body></html>