Hi, I did some tests with FS to transcode SIP INFO to RFC2833 (and vice versa) and it's working fine when FS stays in the media path with default configuration. But my setup is the following: - Core network requires SIP INFO - Peerings require RFC2833 all would be fine with FS if my SIP Peers were not enforcing G729 (discarding G711) so that I have to use the directive <action application="set" data="proxy_media=true"/> in my dialplan cause FS can't deal with G729 except in pass-through. It's sad, but G729 is still a reality in Telco World. So do you think there could be a way to deal with DTMF even if not analyzing RTP for transcoding. My commercial SBC is doing this, but it sucks and that's the last step before final migration to FS. regards, rod