I believe I found a small bug. In mod_sofia.c 8589 if (dtmf.digit) { 8590 if (tech_pvt->mparams.dtmf_type == DTMF_INFO || I believe it should instead be checking what is set in the profile. if (tech_pvt->profile->dtmf_type? == DTMF_INFO?). Otherwise, in order for dtmf INFO to be processed by the channel, we need to set liberal-dtmf=true. Of course my original problem of sending INFO outbound is still not resolved. Please confirm. thank you, ?Sharath From: freeswitch-users-bounces@lists.freeswitch.org <freeswitch-users-bounces@lists.freeswitch.org> on behalf of Sharath Kumar <Sharath.Kumar@meZocliq.com> Sent: Monday, May 4, 2015 2:07 PM To: FreeSWITCH Users Help Subject: [Freeswitch-users] DTMF relay with INFO across bridge 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