NTT DoCoMo held an online press conference about the communication failure that occurred this time, and Vice President Hozumi Tamura said, "We apologize for the inconvenience and concern to our customers and many people about the events that occurred yesterday that made it difficult to use voice calls and data communication services. We apologize for what you are doing. "
After that, it was revealed that a problem occurred while switching the server of the communication service used for electronic payment equipment and vending machines of taxis, and a communication failure occurred.