It turns out that au's 4G LTE data communication fault has made it impossible to use voice communication (calling / receiving) of other au users as well

Although 4D LTE data communication obstacle on May 29, 2013 was reported by KDDI as though it had not been affected by other au users, in fact it was about 28 thousand outgoing and about 86 th in incoming call The influence was also affected. For some users of the au Kanto contract, there was a possibility that the voice communication service · SMS service had been affected even in other than "Tokyo, Kanagawa, Yamanashi prefecture" It turned out.

[PDF file] Data communication trouble in au's 4G LTE compatible model (Recovery report revised 12:30 on June 4)
http://www.kddi.com/corporate/news_release/pdf/20130604.pdf


According to KDDI, as a result of carrying out detailed analysis such as recording of all communication logs and equipment, it was confirmed that some users of the au Kanto contract signed on May 29, 2013 from 9:30 am to 0:22 pm, I confirmed the scale of influence of voice communication service and so on again, it became obvious that it was not my mind that on that day, it was hard to connect to not being 4G LTE anyway.

Organizing it will be as follows.

Data communication service of 4G LTE compatible model: Up to about 560,000

Au Kanto contract voice communication service (including SMS): outgoing about 28,000 · incoming about 86 thousand

First occurrence time: May 29, 2013 4:30 am - May 29, 2013 11:13 pm
Second occurrence: May 29, 2013 9:30 am - May 29, 2013 0:22 pm

Failure cause: failure of LTE base station controller

Affected area: A part of "Tokyo, Kanagawa, Yamanashi prefecture", however voice communication service · SMS service may have occurred outside this area