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