Generally the only thing you are allowed to do before answer is send audio.  
You can’t receive audio and can’t receive DTMF.   I assume it is to prevent 
people from doing exactly what you  are trying to do --- trying to have two way 
communications without paying for the call.


From: asterisk-users-boun...@lists.digium.com 
[mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Rafael Visser
Sent: Thursday, August 07, 2014 4:56 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] agi get_data noanswer

Hi Guys..
I am making an anoucement machine that is not allowed to "answer" the call due 
to a billing issue.
I found that Playback with "noanwser" is usefull in this case.

$AGI->exec('Playback',"$message","noanswer")}


But when i request some values to the user with get_data, i think there is an 
answer anywere.

Is there a way to get_data without answering the call?

Thanks in advance!!

rv
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