Communication terminal and communication method

A communication terminal (100) comprises: a type specification unit (102) that specifies the type of user-to-user communication means corresponding to user operations detected by an operation detection unit (101); a data acquisition unit (103) that acquires communication media data of the user of the present communication terminal, the communication media data corresponding to the specified type of user-to-user communication means; and a transmission unit (104) that transmits, to a partner communication terminal, said communication media data and type request information indicating the type of user-to-user communication means. In accordance with the status of response from the partner communication terminal in response to the type request information transmitted to the partner communication terminal, the type specification unit (102) determines the range of types of user-to-user communication means to which switching is permitted from the type of the current user-to-user communication means.