Some of the UK's largest technology and media companies are working together to see if unused TV spectrum could be used as an alternative to WiFi and mobile data.

The BBC, BSkyB, BT, Microsoft, Nokia and Samsung are among the companies that have formed the Cambridge TV White Spaces Consortium.

Everything Everywhere and BT Wholesale are working together to test 4G Long Term Evolution mobile broadband as an alternative to fixed-line broadband in rural areas.

A field trial will start from September, involving up to 100 mobile and 100 fixed-line customers living around the St Newlyn East area of Newquay. This is expected to be the UK’s first customer trial of 4G LTE high-speed broadband.

Ofcom's recent reduction of mobile termination rates is bearing fruit at BT. The company is cutting the cost of landline-to-mobile telephone calls from 28th May.

Evening calls will fall from 7p per minute to 5.3p when ringing major UK mobile networks from a BT line, which represents a 24% cut. Daytime calls are down 13% from 13p per minute to 11.3p.

There are a lot of appeals going on at the UK Competition Appeal Tribunal.

Vodafone and Everything Everywhere say Ofcom's cut their mobile termination rates by too much, while Three UK and BT say the rates haven't been cut enough.

London Underground is inviting telecoms companies to tender for providing public WiFi service across its network by June 2012. It follows last year's trial of WiFi technology at Charing Cross tube station.

The winning bidder will be given the go-ahead by the end of this year, which means the network could be in place for the 2012 Olympic and Paralympic Games.