It is the mobile network service used by millions of people around the UK. But O2 has now issued a warning to customers ahead of a major change that will stop some phones from working. The UK's 3G ...

O2 is shutting down its older network technology, and that's good news for millions wanting faster speeds.

O2 has announced that it is switching off its ageing 2G network, and that's good news for anyone with a 4G or 5G compatible ...

Cellular service provider O2 UK is working with British credit card issuer Barclaycard, as well as Nokia, Visa Europe and other partners, in a project to test the O2 Wallet, an application in which ...

In the UK, there are more mobile phone handsets than there are people, and it's hardly surprising -- nary a day goes by without a new phone release. The latest to join the fray is the O2 XDA IQ. Based ...

O2 is launching a new service that will offer a free speed boost to thousands of its customers.

A flaw in O2 UK's implementation of VoLTE and WiFi Calling technologies could allow anyone to expose the general location of a person and other identifiers by calling the target. The problem was ...

In late 2007, British cellular service provider O2 UK launched a six-month technology trial to gauge consumer interest in and comfort with using RFID-enabled mobile phones to make fare payments to ...