I need to set up a passthrough zrtp in freeswitch.
I followed this wiki: http://wiki.freeswitch.org/wiki/ZRTP and setup two Jitsi softphones.

MiTM: works well but with different SAS in the softphones. It is ok because of a missing zrtp enrollment process.
Passthrough: no SAS at all and Jitsi says the media is not encrypted
       I tried to achieve passthrough by uncommenting sip_profiles/internal.xml:
       <param name="inbound-proxy-media" value="true"/>

What is the proper way to set up passthrough zrtp and having an end-to-end zrtp session with the same SAS on both softphones?


Thank you,
Peter