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We have been developing "information delivery and display system for deaf people in time of disaster (IDDD)" using both mobile network and ad hoc network of Bluetooth. In IDDD, a mobile phone receives disaster information by SMS, then the received information is automatically transferred and displayed on a big screen with flashing light to inform emergency. So that, deaf people, disabled people and elder people can understand emergency situation even in mid night. We have proved that this system is useful for deaf people through several demonstrations. Using SMS, it is possible to wake up IDDD application on mobile phone to connect to a big display through Bluetooth without any operation by user. This paper describes outline of IDDD and summary of evaluation by disabled or elder people. The result of overall evaluation displayed that almost all attendance answered that this system is useful for supporting both elder and deaf people in disaster.