exten => _X.,1,Wait,1
exten => _X.,2,Playtones(ring)
exten => _X.,3,Wait,1
exten => _X.,4,Answer()
exten => _X.,5,Wait,2
exten => _X.,6,Background(thank-you-for-calling)
exten => _X.,7,Background(if-u-know-ext-dial)
exten => _X.,8,Background(otherwise)
exten => _X.,9,Background(pls-stay-on-line)
exten => _X.,10,Set(LOOPCOUNT=0)

exten => i,1,Playback(pbx-invalid)
exten => i,2,Set(LOOPCOUNT=$[${LOOPCOUNT} + 1])
exten => i,3,GotoIf($[${LOOPCOUNT} > 2]?t,1)
;exten => i,4,Goto(_X.,12)

exten => t,1,Macro(stdexten,${DEFAULT},${DEFAULT})
exten => t,2,Hangup()