02 has said that its staff will be working through the night to fix an outage that left millions of customers without access to mobile data today (6 December).
In a statement posted to Twitter at 7pm, the company said it was “slowly beginning to restore” its services. A further statement issued by O2 and Ericsson revealed the outage was caused by faulty software used by the Swedish supplier that affected nodes in its core network.
Marielle Lindgren, CEO of Ericsson UK and Ireland, said the issue had resulted in “network disturbances for a limited number of customers around the world, including in the UK”.
“The faulty software that has caused these issues is being decommissioned,” Lindgren added. “Our priority is to restore full data services on the network by tomorrow morning.”
In a tweet, Transport for London confirmed that updates on live bus times across the capital had been affected by the outage. O2 also supplies services to Sky, Tesco and Giffgaff, among other firms.
Mark Evans, the CEO of Telefonica (02) UK, apologised for the incident: “I want to let our customers know how sorry I am for the impact our network data issue has had on them, and reassure them that our teams, together with Ericsson, are doing everything we can.”
“We will continue to work with Ericsson, through the night, who have assured us that a full service will be restored for customers by the morning,” he added. “We fully appreciate it’s been a poor experience and we are really sorry.”