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