[Freeswitch-users] event_socket and stop_dtmf

Mon Dec 29 16:41:54 PST 2008

Yes, we get DTMF via rfc2833. If I set "dtmf-type" to "info" then
stop_dtmf works?

The reason why I want to suppress it, is the dtmf echoing (see end of my
mail). Do you see another way how I may suppress this dtmf echo? This is
severe sometimes and keeps ongoing for minutes under certain
circumstances. Thus further voice communication is no longer possible.

We have an incoming leg, play some announcements, build an outgoing leg
and then bridge those 2 channels. When any of the participiants then
pushes a dtmf, echoing begins.

Best regards
Peter

Michael Jerris schrieb:
> stop_dtmf is JUST for the inband dtmf listener, I would guess you are  
> getting dtmf via rfc2833 or some other method.  If you want to  
> understand why we generate all those packets have a read of rfc 2833.
>
>
> Mike
>
> On Dec 29, 2008, at 5:46 PM, Peter P GMX wrote:
>
>   
>> When I send a stop_dtmf command via event-socket, I get a
>> channel_execute and a channel_execute_complete message back. However  
>> FS
>> still accepts DTMFs and sends them via event-socket. In addition the
>> other party will hear the DTMF. So I expect the stop_dtmf command is  
>> not
>> really executed by FS.
>>
>> Here is the message I send:
>> SendMsg
>> call-command: execute
>> execute-app-name: stop_dtmf
>> execute-app-arg: true
>> event-lock:true
>> I send this command while I deliver a number of announcements to the  
>> user
>>
>> At Startup I get the following on the console
>> 2008-12-29 22:48:05 [NOTICE] switch_loadable_module.c:238
>> switch_loadable_module_process() Adding Application 'stop_dtmf'
>> 2008-12-29 22:48:05 [NOTICE] switch_loadable_module.c:238
>> switch_loadable_module_process() Adding Application  
>> 'stop_dtmf_generate'
>>
>> When I push stop_dtmf I get the following
>> 2008-12-29 22:50:10 [DEBUG] switch_ivr.c:391 switch_ivr_parse_event()
>> sofia/internal/1005 at my.domain Command Execute stop_dtmf(true)
>>
>> What am I doing wrong here?
>>
>> Here's a console output when I push DTMF on either side after  
>> stop_dtmf
>> has been pushed and the 2 call legs are bridged.
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1226 do_2833() Send start
>> packet for [1] ts=417476340 dur=160/160/2000 seq=63290
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=417476340 dur=320/320/2000 seq=63291
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=417476340 dur=480/480/2000 seq=63292
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=417476340 dur=640/640/2000 seq=63293
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=417476340 dur=800/800/2000 seq=63294
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=417476340 dur=960/960/2000 seq=63295
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=417476340 dur=1120/1120/2000 seq=63296
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=417476340 dur=1280/1280/2000 seq=63297
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=417476340 dur=1440/1440/2000 seq=63298
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=417476340 dur=1600/1600/2000 seq=63299
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=417476340 dur=1760/1760/2000 seq=63300
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=417476340 dur=1920/1920/2000 seq=63301
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send end  
>> packet
>> for [1] ts=417476340 dur=2080/2080/2000 seq=63302
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send end  
>> packet
>> for [1] ts=417476340 dur=2080/2080/2000 seq=63303
>> 2008-12-29 23:13:39 [DEBUG] switch_rtp.c:1168 do_2833() Send end  
>> packet
>> for [1] ts=417476340 dur=2080/2080/2000 seq=63304
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1226 do_2833() Send start
>> packet for [1] ts=292343252 dur=160/160/2000 seq=53073
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=292343252 dur=320/320/2000 seq=53074
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=292343252 dur=480/480/2000 seq=53075
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=292343252 dur=640/640/2000 seq=53076
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=292343252 dur=800/800/2000 seq=53077
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=292343252 dur=960/960/2000 seq=53078
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=292343252 dur=1120/1120/2000 seq=53079
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=292343252 dur=1280/1280/2000 seq=53080
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=292343252 dur=1440/1440/2000 seq=53081
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=292343252 dur=1600/1600/2000 seq=53082
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=292343252 dur=1760/1760/2000 seq=53083
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send middle
>> packet for [1] ts=292343252 dur=1920/1920/2000 seq=53084
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send end  
>> packet
>> for [1] ts=292343252 dur=2080/2080/2000 seq=53085
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send end  
>> packet
>> for [1] ts=292343252 dur=2080/2080/2000 seq=53086
>> 2008-12-29 23:13:44 [DEBUG] switch_rtp.c:1168 do_2833() Send end  
>> packet
>> for [1] ts=292343252 dur=2080/2080/2000 seq=53087
>>
>> I am also wondering why I receive multiple events (15) for each dtmf
>> pressed. I expect an echo floating back and forth and triggering  
>> dtmf, hein?
>>
>> Best regards
>> Peter
>>
>>
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