[Freeswitch-users] inband DTMF bleeding through

[Matt Broad]

Hi Trever,

I don't think so, it seems that that jira is for a non-SIP based setup.

My "issue" is that when calling a PSTN number from a mobile/landline phone,
which gets delivered by SIP to my FreeSwitch server and then routed out to
another PSTN number (via the same provider). When either party presses a
digit, the other end hears the tone. The tone is not the whole tone just a
fraction of it, maybe half a second, but enough to tell the difference when
different keys are pressed.  The key can be held for a long period, say 3
seconds, but you will only hear the "bleeding".

I have drop_dtmf set to true on both channels (set and export), but I'm not
sure if this would make any difference anyway as the tone is being sent
out-of-band.

It might also be worth noting that I don't get any duplication of tones.
Pressing 123 will always receive 123 and not 112233.

thanks
Matt


On 22 March 2013 16:54, Trever L. Adams <trever.adams at gmail.com> wrote:

> On 03/12/2013 01:45 PM, Matt Broad wrote:
> > Ok, so the fact that a tone can be heard, although only partially,
> > would suggest inband digits are being sent too.  I'll speak to my
> > carrier and see if it is something they can supress their end.
> > Thanks for the help and the tips on debugging :)
> >
> > Thanks
> > Matt
> Matt, by chance is this what you are describing:
>
> http://jira.freeswitch.org/browse/FS-4904
>
> Trever
>
>


-- 
Thanks
Matt

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