Mobile communication terminal and accounting control device

摘要

Mobile phone (300) is registered with various types of specific keywords. When receiving an e-mail from an external terminal, mobile phone (300) determines whether the e-mail contains a specific keyword. When it is determined that the e-mail contains the specific keyword, mobile phone (300) generates log data containing the specific keyword. Mobile phone (300) then transmits the generated log data to a predetermined transmission destination (such as communication management server) (700).