On Mon, Apr 30, 2018, at 11:23 PM, Patrick Wakano wrote: > Hello list, > Hope you are all doing fine! > > I have stumbled over some piece of dialplan code in which apparently they > were trying to avoid recording the DTMF tones in the wav file. It is really > messy and I am not sure if this really works. So after a bit of research I > found this comment ( > https://community.asterisk.org/t/asterisk-dtmf-record/65040) in which it is > said: > > *"Asterisk strips the DTMF from the audio stream when configured for > inband, so internal stuff can react to the DTMF and so the other side does > not hear the tone unless they are using inband (in which case it is > regenerated)"* > So my questions are, what are the cases in which Asterisk regenerates the > DTMFs? Does it cause the recording to have the tone as well, or is it only > transmitted to the other leg without being generated to the recording file? > Also, what if one or both legs are RFC2833? From my tests the RFC2833 > events never show up in the recording, but I just want to confirm that this > is always true.
If properly configured then Asterisk will always strip and regenerate the DTMF tone. You have to purposely misconfigure things to cause it to not get stripped. IE: DTMF is actually inband but you configure it for RFC2833. Since Asterisk wouldn't be listening to the audio stream, it would go right through and get recorded. -- Joshua Colp Digium, Inc. | Senior Software Developer 445 Jan Davis Drive NW - Huntsville, AL 35806 - US Check us out at: www.digium.com & www.asterisk.org -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
