INFORMATION TRANSMISSION SYSTEM.

摘要

[Problem] To provide an information transmission system capable of easily transmitting information regarding safety even if the communication conditions are poor. [Solution] An information transmission system is provided with a message generation unit for generating a first message which comprises specific information having information relating to location, and which is transmitted to a mobile phone. The system is provided with a database which is used for creating the first message, and comprises location information of each mobile phone and safety information of each user of the mobile phone. The first message comprises two or more hyperlinks to be used for sending a reply regarding the state of safety of the user of the mobile phone to which the message is transmitted. Each URL information associated with the hyperlink includes different parameters in accordance with types of replies regarding safety of the user of the mobile phone. On the basis of the reply regarding safety performed using ether one of the two or more hyperlinks, the safety information in the database is updated.