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