London Underground passengers may soon be able to make phone calls in tunnels
People can already access the internet through their phone on many platforms of London Underground stations, but service in the tunnels is non-existent.
Other major cities including Paris, New York and Tokyo already have the technology to prevent mobile blackspots while on their metro systems.
Internet services on the network currently do not extend beyond platforms London Underground in the 70s/80s Sun, February 5, 2017
Photographer Bob Mazzer captured intimate scenes from the London Underground throughout the 1970s and 1980s.
Bob Mazzer 1 of 11
London Underground in the 1970s/80s
The Financial Times said Transport for London (TfL) and London mayor Sadiq Khan will invite bids for telecoms groups after the General Election next week.
According to the newspaper, three people familiar with the plans said a "number of companies were vying for the work".
"We are keen to offer mobile phone coverage for our customers. The introduction of this would need to be commercially viable and would follow engagement with staff and customers," a TfL spokesman told the FT.