[Freeswitch-users] How to create an event for B-leg?

Hi, All! I need to receive some event when phone on leg B become into RINGING state. I need domain_name information, original-caller-id, callee-id, channel-uuid and destination-number. Now I wrote script which creates and fires this event, but it started by session:setVariable("bridge_pre_execute_bleg_app","lua") session:setVariable("bridge_pre_execute_bleg_data","lua/event_fire.lua " .. event_id .." uuid") after B-leg was answered :( How can I run this script when channel receive RINGING? -- with best regards, Dmitriy Borisov