exten => _NXXNXXXXXX,1,Ringing
exten => _NXXNXXXXXX,2,Dial,Local/1${EXTEN}@trunkld
exten => _1NXXNXXXXXX,1,SetCallerID(TDX Corporation <9072782312>)
exten => _1NXXNXXXXXX,2,Dial(${LDTRUNK}/${EXTEN:${LDTRUNKMSD}})
exten => _1NXXNXXXXXX,3,Dial(${LOCALTRUNK}/${EXTEN:${LDTRUNKMSD}})
exten => _1NXXNXXXXXX,4,Dial(${LOCALTRUNK}/${EXTEN:$[${LDTRUNKMSD} + 4]})
exten => _1NXXNXXXXXX,5,Congestion