A method of tracking a first wireless communications device using another computing device, such as a second wireless communications device, includes obtaining {HEAD ~ current position data} for {TAIL ~ the first wireless communications device} and obtaining one or more of speed data, time data, and path data for the first wireless communications device 
A method of tracking a first wireless communications device using another computing device , such as a second wireless communications device , includes obtaining { HEAD ~ current position data } for { TAIL ~ the first wireless communications device } and obtaining one or more of speed data , time data , and path data for the first wireless communications device
OTH OTH OTH OTH OTH 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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH