The present invention relates to telecommunications in general, and more particularly to a method for detecting {HEAD ~ voice presence} on {TAIL ~ a communication line} 
on
The present invention relates to telecommunications in general , and more particularly to a method for detecting { HEAD ~ voice presence } on { TAIL ~ a communication line }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL