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Eurotunnel is installing a telephone system in the Channel Tunnel that means passengers on high speed trains and Le Shuttle will be able to make and receive mobile phone calls under the sea.

Passengers will be able to enjoy a wi-fi service 100 metres below the Channel.

The system will cost €14 million. The additional, mobile telecommunications service has been made possible as Eurotunnel is already in the process of installing the latest version of GSM-R1 railway signalling equipment.

The choice of the same equipment supplier for both GSM-P and GSM-R, Alcatel-Lucent, will ensure the compatibility of the infrastructure and enable costs to be controlled.

The French operators will provide an extension of their 2G/3G coverage through the south running tunnel (running France-UK) via a radiating cable and repeaters positioned every 750 metres.

The North running tunnel (UK-France) will be covered by British operators after the Olympic Games.

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