[Freeswitch-users] Generate RFC2833 DTMF from playback of a wav file with embedded (inband) tones?

[Giovanni Maruzzelli]

yep, you can have the call reading the files, that stream being received
and recognized by spandsp, another call reading those files to the final
destination, stop at dtmf and emot silence and rfc2833, then continue play.
Little involved, but will probably work


On Sun, Dec 13, 2015 at 11:28 PM, Stanislav Sinyagin <ssinyagin at gmail.com>
wrote:

> you can send the call to your own server's port 5080, so you would
> originate the call and playback, and it loops through the same
> FreeSWITCH daemon for dtmf detection, and then sent out to the remote
> SIP destination.
>
> Probably the loopback endpoint would do the same, needs testing.
>
> On Sun, Dec 13, 2015 at 11:21 PM, D D <tru083 at yahoo.com> wrote:
> > Thanks!  I just wanted to clarify that we need to have FS play the file,
> and
> > as the RTP is being sent, to substitute RFC2833 packets into the outbound
> > packet stream in place of the inband tones within the wav file.
> >
> > Note that we are using the dptools playback function to play the file.
> >
> > Is spandsp able to do this kind of RTP subsitution?
> >
> >
> >
> >
> > On Sunday, December 13, 2015 11:31 AM, Giovanni Maruzzelli
> > <gmaruzz at gmail.com> wrote:
> >
> >
> > Yes, use the function from.spandsp, and add the "relax" argument.
> > I cannot remember the name of the function, is something like
> detect_tones
> > detect_dtmf get_dtmf...
> > Check http://confluence.freeswitch.org .
> > If you cannot find it there, ask here again.
> > sent from my mobile,
> > Giovanni Maruzzelli
> > cell: +39 347 266 56 18
> > Il 13/Dic/2015 18:22, "D D" <tru083 at yahoo.com> ha scritto:
> >
> > Hi,
> >
> > We have an application that needs to play wav files.  The wav files have
> > inband DTMF tones.   Can I configure FS to detect these tones and
> > instead send out RFC2833 packets?
> >
> > I really hope there is a way, because we have an older DIalogic system
> > that does this function, and I really don't want to use that!
> >
> > Thanks,
> > David
> >
> >
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-- 
Sincerely,

Giovanni Maruzzelli
Cell : +39-347-2665618
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