Sip call with a direct route to custom-app based on CID.
exten => s,1,Answer
;exten => s,n,PlayBack(recorded)
exten => s,n,Festival(‘Please be advised. Recording of this conference has been enabled.’)
If I do a channel answer and then directly a festival t2v the program hangs and does nothing after the answer. If I add a wait(2) after the answer it still hangs. If do something major like a playback, it then runs festival just fine.