[parked]
exten => *,1,set(C=1)

exten => *,2,while(${C}<5)
exten => *,3,set(FREE=${DB_EXISTS(/MeetMe/${C})})
exten => *,4,noop(${FREE})
exten => *,5,gotoif($[${FREE}=0]?*,10|*,6)

exten => *,6,set(C=${C}+1)
exten => *,7,endwhile
exten => *,8,WaitMusicOnHold(45)
exten => *,9,goto(*,1)


exten => *,10,set(DB(/MeetMe/${C})=1))
exten => *,11,SayNumber(${C})
exten => *,12,meetme(${C},qM)
exten => *,13,DB_DEL(/MeetMe/${C})