exten => s,1,NoOp(HANGUPCAUSE is ${HANGUPCAUSE} and DIALSTATUS is ${DIALSTATUS})
exten => s,2,AbsoluteTimeout(120)
exten => s,3,GotoIf($[${HANGUPCAUSE} = 0]?s,5)
exten => s,4,Goto(cause-${HANGUPCAUSE},1)
exten => s,5,GotoIf($[${DIALSTATUS} = NOANSWER]?cause-16,1)
exten => s,6,GotoIf($[${DIALSTATUS} = BUSY]?cause-17,1)
exten => s,7,GotoIf($[${DIALSTATUS} = CHANUNAVAIL]?cause-3,1)
exten => s,8,GotoIf($[${DIALSTATUS} = ANSWER]?cause-16,1)
exten => s,9,Goto(cause-0,1)