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