Regarding the large-scale communication failure that occurred at NTT DoCoMo on October 14, the Ministry of Internal Affairs and Communications determined that it was a "serious accident" stipulated by the Telecommunications Business Law, and reported to DoCoMo the cause and measures to prevent recurrence. I decided to ask.
At NTT DoCoMo, a large-scale communication failure occurred on October 14, and 4G, which has the largest number of users, continued to be affected for about half a day, and 3G communication used for mobile phones called "feature phones" It took 29 hours to fully recover.
The Telecommunications Business Law stipulates that mobile phone services are "serious accidents" if they affect more than 30,000 people over an hour or more.
According to the company, 2 million people have lost their calls and data communications at all, and even more people have found it difficult to use the service.
For this reason, the Ministry of Internal Affairs and Communications has determined that this communication failure is a "serious accident" and will instruct DoCoMo to investigate the cause and compile measures to prevent recurrence based on the law, and report it by November 13. I decided to ask.
Based on the contents of DoCoMo's report, the Ministry of Internal Affairs and Communications will consider measures including providing administrative guidance.