Colin Baige, head of operational delivery at Durham and Darlington Fire and Rescue, said very few calls triggered by automatic alarms tended to be fires.
When your driving speed is above 25MPH, the service (which can be disabled if you prefer) sends an automatic SMS response to anyone who calls you or sends a text, letting them know you'll get in touch with them as soon as you've finished your journey.
Ofcom said it had seen a rise in complaints about this type of call - which occur when automatic dialer systems used by call centres make more calls than they have people to take them.