[moveyourcar]
exten = 999,1,Answer
exten = 999,2,Set(i=1)
exten = 999,3,While(${i} < 3)
  exten = 999,4,Wait(1)
  exten = 999,5,Playback(warnings/moveyourcar)
  exten = 999,6,Set(i=$[${i} + 1])
exten = 999,7,EndWhile
exten = 999,8,Hangup


results:
    -- Executing Answer("Zap/1-1", "") in new stack
    -- Executing Set("Zap/1-1", "i=1") in new stack
    -- Executing While("Zap/1-1", "1 < 3") in new stack
    -- Jumping to priority 7
    -- Executing Hangup("Zap/1-1", "") in new stack
  == Spawn extension (moveyourcar, 999, 8) exited non-zero on 'Zap/1-1'
    -- Hungup 'Zap/1-1'