EE already has the fastest and most widespread 4G and is now promising to tell customers when they drop down to 3G or 2G when using the mobile network.
CEO Mark Allera told investors that the average city dweller is on EE 4G 96% of the time.
People living in the countryside see that figure drop to 79% or 70% if they are not using 4G calling.
4G calling uses a data connection rather than a mobile signal to make phone calls. It’s a fairly widespread among SIM Only sellers but is only available in very strong network areas.
The tests proved that rail commuters have the worst experience with 4G and often see their internet connection drop entirely.
EE said it would use the measurements “to identify areas where additional coverage is needed”, as well as working alongside telecoms regulator Ofcom to improve the quality and accuracy of network information given to customers.
The company is now calling on government to help open up investment in trackside 4G for rail passengers and commuters.
EE was bought out by BT in 2015 for £12.5bn but still runs as a separate company with its own senior staff.
Its engineers have been converting old 2G masts to work with 4G and 4G+ producing data transfer speeds over 400Mbps.
Earlier this year it floated internet-enabling balloons and drones to combat rural 4G blackspots.
MAIN IMAGE: Hull Trains