Gathering DTMF with variables in bridged calls?

[aqua]

I am using AMI to detect dtmf in bridged calls but I have not found a way to carry over variables I assigned in the dialplan. I need to be able to differentiate between users as we have several variables to send updates during the call, but since I can’t carry them over the DTMF is impossible to link the the variables previously set…

[aqua]

Ok I’ve tried adding custom SIP headers to the last outbound Dial. How do I view them when looking at Events with the AMI? I’ve checked in both DialBegin event and DTMFEnd, but fail to see the headers I’ve added.

[jcolp (Joshua Colp)]

Adding custom SIP headers doesn’t make them appear in AMI events, the same goes for channel variables. Those get emitted as a Varset AMI event if allowed to do so, but don’t appear in other manager events. There IS the ability to have a configured list of channel variables always appear in channel related AMI events[1] though how you do that in FreePBX I don’t know. Generally people maintain state in their AMI application instead.

[1] https://github.com/asterisk/asterisk/blob/master/configs/samples/manager.conf.sample#L60

[aqua]

Right now I am using this dialplan. When the firct caller answers he will press ‘1’ to dial whatever number it is associafted with.

; Handle DTMF inputs
exten => 1,1,NoOp(Dialing number 1)
  same => n,Dial(PJSIP/${ARG3}@sip1)
  same => n,Hangup()

Problem is that doing this creates a bridge and thus no longer follows the dialplan. I am looking for a way to keep the new bridged call into continuing to use the dialplan and a new Context inside of it. How would I do this?

I am basically looking for any way to monitor and control DTMF that will keep track of what user and phone is doing the dtmf and act accordingly.