Record heavy snow has fallen in Tokushima Prefecture. Temporary, several hundred households were isolated. Tokushima Prefecture is located in Shikoku. There are not too much snow every year. For this reason, relief activities by local governments has been delaye
Municipality was took much time to confirm the safety of residents. Because IP phone is unavailable in the power outage. Ordinary phone is also available in the power outage. However, the Internet telephone had spread in the isolated region.
In Shikoku there is a possibility that a large earthquake occurs. Maintenance of communication means has emerged as a new challenge.