[Freeswitch-users] Timeout counted from receiving 180

Hi Everyone Im wondering if there is a way to set a timeout ina similar way to originate_timeout when placing a call but that only starts the timeout counter after freeswitch recieves the 180 Ringing from the carrier. We have a carrier which on an invalid number does not send a 404 straight away, instead they send early media with a recorded message for over 30 seconds saying number is invalid. This causes the call to timeout and be classed in CDR's as a NOANSWER instead of INVALID I have run a sip trace and both a valid and invalid number recieve a 183 eraly media message but only a valid number recieves a 180. I have tried ignore_early_media but this does not seem to work. Regards