A fifth of the UK suffers from poor coverage, according to the government
Media playback is unsupported on your device

Government crackdown on mobile 'notspots'

The government plans to oblige mobile operators to improve their coverage, possibly by sharing rivals' networks.

Partial 'notspots', where there is coverage from some but not all of the mobile networks, affected a fifth of the UK, leaving people unable to make calls or send texts, it said.

One possible solution would see people transferred to rival networks when they lose signal.

The BBC's political correspondent Iain Watson reports.

Go to next video: Mobile to mobile payments arrive