4G launch: Speed testing the mobile service
11 September 2012 Last updated at 12:47 BST
The UK's first fourth generation (4G) mobile service will launch in 16 UK cities before the end of the year.
Everything Everywhere, which will now be known as just EE, will continue the rollout into the new year and aims to provide 4G to 98% of the UK by 2014.
Rory Cellan-Jones tested out the power of 4G at the Everything Everywhere press event that announced the project, with Stuart Miles, founder of the Pocket-lint website.