[Freeswitch-users] Modifying fax headers

[René Weiss]

Hi,

I have the same problem/questions Peter Steinbach had in this thread 
from 2014:

http://lists.freeswitch.org/pipermail/freeswitch-users/2014-May/105196.html

Is it in the newest releases of freeswitch possible to make this changes 
without modifying the source code?

If it's not, can someone tell me which files I would have to change?

Thanks,
René