{HEAD ~ The method} 20, wherein the data produced at {TAIL ~ at least one end terminal} are digital, non packetized data 
{ HEAD ~ The method } 20 , wherein the data produced at { TAIL ~ at least one end terminal } are digital , non packetized data
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH