Hi, I am trying to build a SBC but a kind of different described on wiki. I immediately send incoming leg A to a socket app and connect bridge with my socket python application. I will handle all business logic on python side. My dialplan is so simple; <extension name="SBCSocket"> <condition field="destination_number" expression="^1000$"> <action application="socket" data="127.0.0.1:1905 async full"/> </condition> </extension> Freeswitch send calls to parking and 183 early media through mod_sofia. This is unacceptable on my SBC scenario. Because I not receive 183 or 180 from leg B yet. I want to relay early media or ringing when I received from B leg I realize this is not a bug. It is a feature but i need to know is this possible. I would appreciate all suggestions and clues. Regards, ibrahim