Provider doesn't give indicate condition 14


When dialing outbound using iax2, I see the following message :

‘IAX2/provider1-11 is making progress passing it to OSS/dsp’

This message appears when the remote phone starts ringing. One of my providers has a bug where it doesn’t return this message sometimes, can I set a timeout and say that if I haven’t recieved the message within X seconds to set status to ‘CHANUNAVAIL’?