I understand that x-range improves the coverage from 35 km to approximately 121 km. What I dont understand is why is that after 45 km the mobile does not display the signal bar or level ( car speed 60 km/hr to 120 km/hr, on the high way), the signal only appears when you stop the car. Is this the way X-range should work? Because I was expecting to see the signal even when driving not where you have to stop the car to make a call.