Hi to all, I'm studing the possibility to add support of ZRTP protocol or similar key echange metods to pjsip. In my opinion, suppose i'm the caller, after the sip signaling has completed (200 OK) and before start the srtp media session, I have to put the zrtp protocol challenge response transaction. Anyone can tell me the correct approach to do this in pjsip. Thanks in advance for responses. Lorenzo
