I am using WebRTC of FreeSWITCH with latest codes to fix some issues. But i am stuck with this annoying WARNING showing:

> 2014-01-22 10:18:04.869529 [WARNING] sofia.c:7746 IGNORE INFO DTMF(3) (This channel was not configured to use INFO DTMF!)

I changed in the switch settings as mentioned in the doc: http://wiki.freeswitch.org/wiki/Sofia.conf.xml#DTMF   , but still i get this same error. 


<param name="dtmf-type" value="info"/>

or


<param name="dtmf-type" value="rfc2833"/>

or


<param name="dtmf-type" value="none"/>
or 


<param name="liberal-dtmf" value="true"/>


Can anyone kindly advise how to fix it please?

Thank you

Best regards
IamTrying