According to officials, with the upgrade to 4G people will now be able to stream videos, listen to music and watch and share data on their mobile devices 100m under sea-level as easily as at home.
"This new service means we can offer our customers incredible connectivity and astonishing access to mobile services, bringing better information for passengers, allowing them to remain operational and make their journey a real opportunity to relax," said Michel Boudoussier, Eurotunnel's chief operating officer.
The 4G boost was made possible because of the two-way collaboration between the Eurotunnel and telecommunication operators EE, O2, Vodafone and Bouygues Telecom. The launch of 4G in the Channel Tunnel was marked by a live concert broadcasted from the Shuttle travelling at almost 90mph.
Around 20 million people travel through the Channel Tunnel each year, either on the Eurotunnel shuttle in their cars...