It is therefore an object of the present invention to provide a method for accurately detecting beginning and end of voice presence on {HEAD ~ a digitized communication line}, even in the presence of {TAIL ~ tone signals} 
It is therefore an object of the present invention to provide a method for accurately detecting beginning and end of voice presence on { HEAD ~ a digitized communication line } , even in the presence of { TAIL ~ tone signals }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL