DOCOMO's communication failure recovery is also difficult to connect

The communication network is prolonged due to the restriction of recovery after 3 hours

NTT DOCOMO's mobile phone service caused a nationwide communication failure on the 14th.From around 5:00 pm on the same day, it became difficult to connect voice calls and Internet communication.The company revealed that the communication network had been restored about three hours later, but the use was restricted to prevent the use of mobile phone communication data, and the effect was prolonged after recovery.The Ministry of Internal Affairs and Communications may be a "serious accident" for reporting.

Even after midnight on the 15th, SNS (exchange site) continued posted by docomo users such as "I can't connect" and "I can't use it outside the area".The cause was a network construction trouble.According to DOCOMO, from the morning of the 14th, an unexpected problem occurred when a network of control systems for "IoT" devices, which all things connect to the Internet.It is said that the network was imposed, and a failure occurred, including the mobile phone communication network.

From around 5:00 pm, it became difficult to connect voice calls and data communication of docomo mobile phones and data communication.Before 8:00 pm, the communication network was restored, but since communication restrictions were implemented to avoid the rapid increase in mobile phones, the communication line was crowded and the effect was prolonged.

DoCoMo is the largest mobile phone.The company also lends its own communication lines to virtual mobile telecommunications carriers (MVNOs), which provide cheap smartphones, such as Internet Initiative (IIJ).This failure also affected the service of MVNO operators.Including contracts for corporations and MVNO contracts, docomo's communication line is about 80 million.Smartphones are also a means of cashless payment, and the effects of communication disorders are significant.

The Telecommunications Business Law is positioned as a "serious accident" for the Ministry of Internal Affairs and Communications to report a communication service that handles emergency calls if more than 30,000 users cannot use communication for more than an hour or more.The range of communication failures has not yet been revealed, but it may be a serious accident.As a company that responsible for living infrastructure, it is necessary to investigate the cause and to prevent thorough recurrence.DOCOMO commented, "We apologize for the inconvenience and deeply apologetic."

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