what i did first i installed on ubuntu 12.04 latest asterisk 11.2.1,and did realtime mysql database integration with(odbc) with Kamailio and rtpproxy for nat, following instructions here:
and everything is working fine…tls for signaling,udp/srtp for audio/video.
After that i installed freepbx over it, successfully, and everything is working fine,except srtp is not working(tls for signaling is still working). Now I only have udp/rtp.
I have two different snapshots on vm,one with freepbx,one without,and comparing configurations and sip events everything looks same. zrtp hashes are sent in both situations in invites,but with freepbx installation srtp is not been negotiated and used.
why?Is there any particular reason for this to happens??