The systems and methods of this invention are directed toward reliably exchanging diagnostic and test information between transceivers over {HEAD ~ a digital subscriber line} in {TAIL ~ the presence} of voice communications and other disturbances 
in
The systems and methods of this invention are directed toward reliably exchanging diagnostic and test information between transceivers over { HEAD ~ a digital subscriber line } in { TAIL ~ the presence } of voice communications and other disturbances
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 REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH