A data network outage that has left O2 customers unable to use mobile data is the result of a 'global software issue' according to the operator. O2 is the second largest mobile operator in the UK; the ...

Mobile operator O2's service outage is still causing problems for customers who joined its network or upgraded since the issues began on Friday. Calls, texts and data for existing customers should be ...

Mobile network operator O2 has blamed a problem with a third-party software installation for a nationwide network outage that has left millions of subscribers unable to access 4G data services on ...

Markus Haas, CEO of Telefónica Deutschland, pictured at the headquarters of mobile communications provider Telefónica (O2). The head of Munich-based mobile phone operator O2 sees his company on the ...