exten => _X.,1,Random(50:7)
exten => _X.,2,Random(50:5)
exten => _X.,3,Dial(SIP/1000,30,tr)
exten => _X.,4,hangup
exten => _X.,5,Dial(SIP/1001,30,tr)
exten => _X.,6,hangup
exten => _X.,7,Random(50:10)
exten => _X.,8,Dial(SIP/1002,30,tr)
exten => _X.,9,hangup
exten => _X.,10,Dial(SIP/1003,30,tr)
exten => _X.,11,hangup