BT Openzone has signed a deal to roll out Wi-Fi services to 13 mainline UK railway stations by spring of this year.
Passengers at Euston, Liverpool Street, Waterloo, Victoria, Fenchurch Street, Paddington, Cannon Street and Charing Cross will be able to surf the web wirelessly at broadband speed by signing up for the service.
Other stations around the UK will include Birmingham New Street, Leeds City, Manchester Piccadilly, Liverpool Lime Street and Edinburgh Waverley.
The Wi-Fi operator promised that further access points will be installed at London Bridge and Glasgow Central by the summer, taking the total to 15.
Steve Andrews, managing director for products at BT Mobile and Strategy, said in a statement: "This expansion forms part of our strategy of bringing increasing numbers of access points to key locations.
"You can now realistically leave your hotel, call into McDonald's for a coffee and catch your train, and all major stops on your journey will have a BT Openzone access point."
By the end of March, BT claims that its network of access points will number more than 2,200.
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