[internal]
exten = _NXXXXXX,1,Prefix(1${CALLERIDNUM:0:3})
exten = _NXXNXXXXXX,1,Prefix(1)
exten = _1NXXNXXXXXX,1,NoOp(${USERCONTEXT})
exten = _1NXXNXXXXXX,2,FindChannel(${EXTEN:1})
exten = _1NXXNXXXXXX,3,Goto(dial-outside,${EXTEN},1)
exten = _1NXXNXXXXXX,103,Goto(dial-inside,${EXTEN},1)