I am not sure if I just don't understand the negotiation process correctly or something is wrong.  Currently running 5ab62d81147 (2015-11-26).   I am getting INCOMPATIBLE_DESTINATION which seems to be because FS is only offering the b leg the codec it settles on for the A leg (sounds very much as if inherit_codec is true or disable-transcoding is true however both are set to false).

Making a simple outbound bridge through mod_sofia and the A leg only supports a codec B does not (SPEEX for example) and it ends up that is the only thing offered to the B leg. 

I do have inbound-codec-negotiation set to generous and inbound-late-negotiation set to true (for both profiles), but I would assume FS should still offer all the outbound-codec-prefs on the invite for the bridge, but instead it is only offering the a-leg codec.

I would assume it should just transcode but instead it fails.

fail: https://pastebin.freeswitch.org/24471 works: https://pastebin.freeswitch.org/24472

I am not sure what I am missing.