exten => 33,n,While($[${j} <= ${max_states}])
exten => 33,n,System(echo "${j} for ${CUT(stage5_states,\,,${j})}" | /usr/bin/text2wave -scale 1.5 -F 8000 -o /tmp/festival${j}.wav)
exten => 33,n,Background(/tmp/festival${j}|||dynamic_states)
exten => 33,n,Set(j=$[${j} + 1])
exten => 33,n,EndWhile()
exten => 33,n,Background(beep&beep&beep&beep&beep|||dynamic_states)

[dynamic_states]
switch => Realtime/dynamic_states@extensions