How to disable symmetric RTP in freeswitch.

How to disable symmetric RTP in freeswitch.

I'm having trouble sending video to FreeSWITCH from a source port that is different from the one specified in the SDP. Even though I enabled disable_rtp_auto_adjust, FreeSWITCH still sends video RTP to the port defined in the INVITE SDP. However, unless I send video back to FreeSWITCH from that same source port, it doesn’t work.

Is there a way to disable this behavior in FreeSWITCH, or is this simply not supported?