[Freeswitch-users] Freeswitch As SBC for sip_phones

Hi Thanks for suggestions, If we want to comply strictly with rfc 5853 in our SBC so we should have a B2BUA also int it. What is your recommendation? 1-Using Kamailio/Opensips for forwarding REGISTER/SUBSCRIBE/NOTIFY to external Registrar and using a Freeswitch for media+B2BUA ? 2-Using Kamailio/Opensips + rtpengine and just using Freeswitch as B2BUA in media bypass mode Regards. M.shirazi