how can I tell if employer is tracking me with GPS cellphone?

Question

here's the deal. I work for huge company(no names) there are about 12 on the road service technicians with nextel cell phones, they are gps ready. well atleast 4 technicians are showing a position with coordinates, but the others are still at zero's. is it possible only some have been tracked? the time stamps don't make any sense either, odd hours of the day and even weekends,(we don't work weekends. is it possible the phone is calling on the satellites, and were not being pinged by employer? please help with any info thanks.

Answer 1

ask at http://www.cellphoner.net they have some cell experts there.