Regarding recovery of au mobile phone telecommunication quality in the damaged areas of the Great East Japan Earthquake

KDDI Corporation

July 1, 2011

KDDI Corporation would like to express its deepest sympathy and condolences to the victims of the Great East Japan Earthquake.

As of June 30, 2011, KDDI Corporation has recovered quality of au mobile phones in the service areas of Iwate, Miyagi and Fukushima prefectures to the same level as before the earthquake [1].
We will take new au area measures to enable more comfortable usage of au mobile phones in the Tohoku region.

  • [1] Excluding limited areas of Fukushima Nuclear Power Plant.

We will also take following measures to strengthen facilities so as to enable early area recovery in times of major disaster.

  1. We will increase the number of mobile power supply vehicles and emergency generators from current 55 to 130 in order to immediately supply power source to our telecommunication facilities such as mobile base stations in damaged areas, as well as to our customers.
  2. We will increase installment of emergency wireless entrance facilities from current 40 sections to 60 in order to secure telecommunication between mobile base stations and telephone switching centers in cases of fixed line damage.
  3. We will increase vehicle-mounted satellite base stations from current 15 to 20 and newly install 27 kit-type portable base stations that can equip both satellite and wireless entrances in order to allow early restoration of telecommunication in damaged areas.
  4. We will install batteries that can operate for more than 24 hours at about 2,000 mobile base stations by March 31, 2013.

We will also consider adoption of the following measures to further improve convenience of telecommunication usage in times of disaster.

  1. Improve functions for better smartphone usage of disaster message board
  2. Strengthen mail communication in times of disaster
  3. Adopt voice file type message service
  4. Increase models compatible with "disaster/evacuation information" emergency news flash mail.

We have ended Disaster Message Board service for the Great East Japan Earthquake on June 30, 2011.

  • * The information contained in the news releases is current at the time of publication.
    Products, service fees, service content and specifications, contact information, and other details are subject to change without notice.

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