Mark Bridge writes:
Just a few weeks ago WiFi was made available on a number of London Underground stations - yet mobile coverage still stops when you go down the escalator.
So why is it taking so long for us to get mobile phone service on the Tube?
For an insight into some of the challenges and the possible solutions I spoke to Ian Brown, CEO of Axell Wireless. The company is a leader when it comes to providing additional wireless coverage in confined spaces - from tunnels to sports stadiums - and is currently involved in the project to install mobile phone service on the Channel Tunnel.