[Freeswitch-users] DTMF relay with INFO across bridge

[Brian West]

https://freeswitch.org/confluence/display/FREESWITCH/Channel+Variables#ChannelVariables-dtmf_type

I suspect you only need to set the dtmf_type inside the {} on the bridge
line if you wish to send INFO, You do know we have a bunch of RTP bug flags
that can be tweaked to make Sonus work correctly.

https://freeswitch.org/confluence/display/FREESWITCH/RTP+Issues



On Mon, May 4, 2015 at 1:07 PM, Sharath Kumar <Sharath.Kumar at mezocliq.com>
wrote:

>  Hi,
>
>
>
> I looked around in the mailing list and don’t see any conclusive solution
> to this problem.
>
>
>
> I have a setup like this below.
>
>
>
> Webrtc client -----FS----sonus gateway.
>
>
>
> The Webrtc client is sending INFO as DTMF. The FS currently bridges the
> call to the gateway and in the outbound leg uses rfc2833.
>
>
>
> Problem: Some calls suffer from missing DTMF and repeated duplicate DTMF.
>
>
>
> Solution: Use INFO all through to sonus gateway ?
>
>
>
> How do I achieve this ?
>
> In the internal profile if I change the “dtmf-type” to “info”. Nothing
> really happens, it still sends rfc2833 dtmf.    I believe it is because of
> “liberal-dtmf” is “true”.[accept any but always offer rfc2833] But if I
> change “liberal-dtmf” to “false”. I get “channel is not configured to use
> info dtmf”.
>
>
>
> Is this a bug ? Is there any way around it ?
>
>
>
> Any input much appreciated.
>
> Thank you,
>
> Sharath
>
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-- 

*Brian West*
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