FIG 1 shows a system 10 in which various embodiments of the present invention can be utilized, comprising {HEAD ~ multiple communication devices} that can communicate through {TAIL ~ one or more networks} 
communicate through
FIG 1 shows a system 10 in which various embodiments of the present invention can be utilized , comprising { HEAD ~ multiple communication devices } that can communicate through { TAIL ~ one or more networks }
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 OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL