https://freeswitch.org/confluence/display/FREESWITCH/Channel+Variables#Chann... 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@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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