Letter to the editor: Commuting on the Tube means being out of contact, and when you are delayed underground you cannot tell anybody.

If you work in Greenwich and are waiting on an important call, do not travel on the Jubilee line, you will miss that call.

But if you were travelling in Berlin, Paris, or Seoul this would not be a problem, because for the past decade you have been able to call, text and, more recently, tweet while travelling underground.

Transport for London (TfL) can say it is too expensive or complex, but why then has every other major city been connected and we cannot figure it out?

Recently, transport bosses said they are going to wait until after Crossrail is completed to even consider adding this technology to the Tube, which means waiting well into the next decade.

New York was like us a couple years ago with its subway being a communications black hole.

However, it has recently found a way to connect its commuters without any cost to the taxpayer, and they are now well under way.

Their simple solution was to have the mobile operators pay the bill, not commuters or taxpayers.

TfL and the Mayor need to show they are open for this kind of agreement to take the Tube into the 21st century.

GARETH BACON, Conservative London Assembly member