This invention in general relates to {TAIL ~ tone detection}, and more specifically to a multi frequency tone detector and {HEAD ~ method} for detecting a multi frequency tone 
This invention in general relates to { TAIL ~ tone detection } , and more specifically to a multi frequency tone detector and { HEAD ~ method } for detecting a multi frequency tone
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH