The UK's first major fourth generation (4G) mobile service has gone live in 11 cities.
London, Manchester, Bristol, Birmingham, Cardiff, Edinburgh, Leeds, Liverpool, Sheffield, Glasgow and Southampton will have access to network EE's 4G from Tuesday morning.
Other mobile networks will not be able to offer 4G until next year.
Critics have questioned the service's affordability - particularly with regard to data usage allowance.
http://www.bbc.co.uk/news/technology-20121025