O2 has announced steps to improve the stability of its network and “rebuild confidence” in the operator after a partial UK outage struck last Friday.

O2 COO Derek McManus said the company has removed the Ericsson-supplied central user database that was at the root of the problem and was also behind an outage in July. Ericsson said in a statement that the issue was related to how the equipment was configured and that the problem was fixed on Friday afternoon.

The operator is “implementing a proven alternative solution”, confirmed by Ericsson to be a classic HLR database. O2 will spend £10 million on making the change in addition to the £1.5 million being invested to build out and improve the network each day.

The operator is also “up-weighting and re-focusing” its service experience team to ensure “the highest level of customer network experience” while this investment takes place.

Around 10 percent of customers were unable to make or receive calls or use data on Friday. “We will not rest until we have cemented the stability of our network and can deliver the level of service customers have come to expect of us over the last ten years,” McManus said.