North Eurotunnel now has Vodafone and EE service

Should you be travelling through the Eurotunnel today, you'll be able to enjoy mobile connectivity depending on which mobile operator you're currently subscribed to. Vodafone and EE have infrastructure in place to take loads from today, while O2 UK will be going live soon. Utilizing a fibre optic retransmission system, operators have made it possible for passengers to enjoy stable connectivity.

source: androidcentral