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

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

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 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 ...