On Fri, Dec 5, 2008 at 8:32 AM, Frank @ Impact <frank@impactfax.com> wrote:
Looks like tone detect might do it. But..
If so, What frequency would we use for particular keys?
http://en.wikipedia.org/wiki/DTMF#Keypad
Will tone_Detect sniff both legs or would we just do both r and w on the called leg?
Just do both r and w.
Can the tone_Detect timeout just be a very large number or can we leave out the timeout value so there is no timeout?
I know you can set it to a large number; I've never tried a "forever" tone_detect. I'll check it out.
Could the trigger from tone Detect do a gentone for a certain key?
I don't believe so. This is where the bind_meta_app functionality is more applicable. The dialplan isn't really the best place to handle "events" like this. (Event socket would be better if you can swing that, but I think maybe a workaround is doable with just the dialplan and some creativity.)
Not much on the wiki on the mod.
My bad. I'm working on it. :) In the meantime grab those dtmf frequency values and set up a test extension in your dialplan. Put a tone_detect app in that test ext. (You could have the ext set tone detect, sleep 10 seconds, do info app then hangup.) Then call the test extension, press a few keys, then wait for the info app to dump. If you have the tone_detect set a chan variable when a dtmf is pressed then you'll see it in your info app dump. BTW, MikeJ reminded me about the start_dtmf/stop_dtmf apps: http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_start_dtmf Those might be necessary if your dtmf's are not already in-band. Here's a sample extension you could try for testing, dialing 9990: <extension name="dtmf_detect_test"> <condition field="destination_number" expression="^9990$"> <action application="answer"/> <action application="tone_detect" data="DTMF1 697,1209 rw +10000 set DTMF1=true"/> <!-- detect DTMF 1 key--> <action application="sleep" data="10000"/> <action application="info"/> <action application="hangup"/> </condition> </extension> Give that a try and at least see if you can detect the tones... -MC