[Freeswitch-users] Serious and urgent problem with DTMF! Please help...

[Michael Jerris]

if it is inband dtmf and you don't turn on the dtmf detector, we wont look for or touch the tones.


On Aug 16, 2010, at 8:56 AM, Dennis wrote:

> phillip, it seems that we have somehow the same problem, but we have
> an additional strange behavior.
> 
> we used wireshark on the incoming network-card and on the outgoing
> side. there we see two strange things, we can not figure out:
> 
> 1.) on the incoming side, we receive the in-band tone from the cirpack
> with a tiny gap, but fs recognizes them as 2 tones.
> in wireshark it look something like this: | ||||||||
> as i said, fs sees this as two tones.
> 
> 2.) fs sends the tone above to the outgoing side as two tones, but
> seems to cut the first ms of the second part.
> in wireshark it looks something like this: |      |||
> 
> 
> i feel, that we have to find out the following:
> 
> 1.) why does the tone already have a gap, when we receive it?
> 
> 2.) why does fs not leave the tone untouched? something happens with
> the tone, while passing fs. is there a setting to avoid this?
> 
> 3.) why is there no easy way to completely delete dtmf tones, if it is
> possible with vuvuzela-noise? ;-)
> 
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