I have Jitsi Desktop calling a Baresip via FreeSWITCH. On Baresip I only only have VP8 enabled.  If Jitsi uses VP8 then the call works fine. If h264 is selected then the other softphone states no video codec matches. On Monday, August 27, 2018, 5:40:39 PM EDT, Michael Jerris <mike@jerris.com> wrote: We will always try to avoid transcoding the best we can, and will only transcode when required.  There is no way to enable it, as its enabled by default.  Why do you think its not working?  Make sure you have the codec modules you require loaded, and that the codecs you want to support are in the allowed codecs. On Aug 27, 2018, at 5:37 PM, robert mundkowsky via FreeSWITCH-users <freeswitch-users@lists.freeswitch.org> wrote: From: robert mundkowsky <rfmundkowsky@yahoo.com> Subject: how to enable transcoding Date: August 27, 2018 at 5:24:08 PM EDT To: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org> Can I get instructions on how to enable video transcoding on FreeSWITCH 1.6? I would recommend using 1.8 I did not see this covered in the books. I tried the following: sip_profiles/internal.xml: <param name="disable-transcoding" value="false”/> This setting is default, you dont need to set it <param name="inbound-late-negotiation" value="true"/><param name="inherit_codec" value="true"/> vars.xml: <action application="set" data="media_mix_inbound_outbound_codecs=true"/><action application="set" data="proxy_media=false”/> This setting is default, you dont need to set it And I enabled some different video codecs. Also tried: "Mixing Media/Codecs on different legs (transcoding)" from  Codec Negotiation - FreeSWITCH - Confluence but these instructions seem odd, for example I think you would want "late-negotiation".