GPS
Global Positioning System. A system of satellites, computers, and
receivers that is able to determine the latitude and longitude of a
receiver on Earth by calculating the time difference for signals
from different satellites to reach the receiver. The GPS (Global
Positioning System) is a "constellation" of 24 well-spaced
satellites that orbit the Earth and make it possible for people
with ground receivers to pinpoint their geographic location. The
location accuracy is anywhere from 100 to 10 meters for most
equipment. Accuracy can be pinpointed to within one (1) meter with
special military-approved equipment. GPS equipment is widely used
in science and has now become sufficiently low-cost so that almost
anyone can own a GPS receiver. The GPS is owned and operated by the
U.S. Department of Defense but is available for general use around
the world.GPS Assisted GPS with software
It has both GPRS and GPS.
alamak.. you didnt read the specification properly... I wonder do
you do that in your work 
Good thing I no need to go back this year 
