This image build follows the guide at https://freeswitch.org/confluence/display/FREESWITCH/FreeSWITCH+1.6+Video
The purpose of this image is to be a base build of FreeSWITCH 1.6 plus video support (video MCU rooms).
The configuration is easiest applied by filling the volume /usr/local/freeswitch/etc/ which is declared in this image.
Could you add some more documentation and examples of how this container can be used? It doesn't follow the guide on the wiki page exactly so it would be good to have a bit more information about what needs doing to get it up and running and how to test etc.