Any resolution on this one?  I have the same issue.  DTMF coming from a cell phone, say 123, is sometimes repeated, e.g. 11233 when forwarded to an outbound call.  It is not consistent though.

On Fri, Mar 22, 2013 at 7:16 AM, Matt Broad <matt@inveroak.com> wrote:

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@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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