O2 says its network has been restored following a software glitch which affected 32 million customers
The outage was caused by a problem with software installed by Ericsson.
“A review will be carried out with Ericsson to understand fully what happened”, said O2, which is owned by Spain’s Telefonica.
O2 and Softbank Group Corp’s mobile phone unit, both software customers of Ericsson, reported disruptions to data services throughout Thursday
O2 has 25 million users and also provides services for the Sky, Tesco, Giffgaff and Lycamobile networks, which have another seven million users..
Some bus timetable information services were also affected, while many businesses faced disruption.