Ericsson has issued a statement apologizing to its clients and clients' clients for causing a prolonged loss of all mobile data and some voice services yesterday. As we reported, a bug in the Ericsson software implemented by O2 UK Y Softbank In Japan, it caused a one-day service interruption on Thursday, December 6.
(Also watch the week on Telco IT: Huawei's CFO arrested in Canada "at the request of the US, while Ericsson is blamed for the failure of the UK and Japan's O2 network)
How Jeremy Cowan Ericsson's statement reportedly says: "During December 6, 2018, Ericsson identified a problem on certain core network nodes that caused network problems for a limited number of clients in various countries using two specific software versions of the SGSN MME (GPRS Support Node : mobility management entity).
Brje Ekholm, President and CEO of Ericsson, says: The faulty software that has caused these problems is being removed from service and we apologize not only to our customers but also to their customers. We work hard to ensure that our clients can limit the impact and restore their services as soon as possible. "
An initial root cause analysis indicates that the main problem was an expired certificate in the software versions installed with these clients. A complete and thorough analysis of the root cause is still in progress. Our focus now is to solve immediate problems.
Over the course of December 6, most of the network services of affected customers have been successfully restored. We are working closely with the remaining customers who are still experiencing problems..