[Freeswitch-users] Event Socket Layer State Diagram

[Grant Bagdasarian]

Hello Zoltan,

Thank you! I thought it was the UUID of the channel I had to pass to the SendMSG command.
This makes things easier now!!

Cheers,

Grant

From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Zoltan Medveczky
Sent: Wednesday, May 28, 2014 6:36 PM
To: FreeSWITCH Users Help
Subject: Re: [Freeswitch-users] Event Socket Layer State Diagram

You can specify an "Event-UUID" header in your "SendMsg" command.  Its value will be relayed back in the "Application-UUID" header of the corresponding CHANNEL_EXECUTE and CHANNEL_EXECUTE_COMPLETE events.

On Wed, May 28, 2014 at 12:08 AM, Grant Bagdasarian <GB at cm.nl<mailto:GB at cm.nl>> wrote:
Hello,

Is there a state diagram available which shows the state transitioning for all Channel Events and Channel States?

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.

I do have a small question.
When using the SendMSG method of ESLConnection to playback a file, the below sequence of events is generated.

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.
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.
I know there is the Unique-ID header, but I’d like every action to be uniquely identifiable.

Is that possible or am I asking way too much?

"Command":      "sendmsg c48f66c0-e5be-11e3-a832-551ac922334e",
"Event-Subclass":            "c48f66c0-e5be-11e3-a832-551ac922334e",
"call-command":              "execute",
"execute-app-name":   "playback",
"execute-app-arg":         "/usr/src/freeswitch/sounds/basic/welcome.wav",
"event-lock":     "true",
"Event-Name": "PRIVATE_COMMAND",

"Event-Name": "CHANNEL_EXECUTE",
"Application":    "playback",
"Application-Data":         "/usr/src/freeswitch/sounds/basic/welcome.wav",
"Application-UUID":       "ca0df0a8-e5be-11e3-a83e-551ac922334e"

"Event-Name": "PLAYBACK_START",
"Playback-File-Path":     "/usr/src/freeswitch/sounds/basic/welcome.wav",

"Event-Name": "PLAYBACK_STOP",
"Playback-File-Path":     "/usr/src/freeswitch/sounds/basic/welcome.wav",
"Playback-Status":           "done"

"Event-Name": "CHANNEL_EXECUTE_COMPLETE",
"Application":    "playback",
"Application-Data":         "/usr/src/freeswitch/sounds/basic/welcome.wav",
"Application-Response":              "FILE PLAYED",
"Application-UUID":       "ca0df0a8-e5be-11e3-a83e-551ac922334e"

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