Called NavComm, it uses text messaging to send details and orders from car to office, so employees based in the front line can be redirected to jobs. New destinations can be sent, which then translate themselves into directions in the satellite navigation.
NavComm also keeps records of driver activity and locations, but the firm claims the 'big brother' fear of many fleet drivers will be allayed by the benefits they gain in terms of the text messaging and route information.
Vehicles are tracked by global positioning satellites, and low frequency navigation transmitters responding to sensor fitted in the car, and mobile phone aerials. The tracking system can also be shut down outside office hours to protect employee privacy.