O2 users are being issued with emails urging them to make sure their smartphones are compatible with 4G and 5G data.

Virgin Media O2 has warned customers they may "experience a drop in call quality" or be left unable to use mobile data as its ...

O2 has unveiled an unexpected hero in its new brand campaign – a huge talking fish. The absurd ad is quite unusual for the ...

Virgin Media O2 has warned customers they may "experience a drop in call quality" or be left unable to use mobile data as its 3G ...

A flaw in O2 UK's implementation of VoLTE and WiFi Calling technologies could allow anyone to expose the general location of ...

The specialist pensions group, which has £70bn in assets under management, wants to buy the entertainment venue's long lease ...

O2 has issued an urgent message to mobile users across the UK as it prepares to shut down its ageing 3G network. This move ...