To provide a pictogram displaying and transmitting program of each telecommunications carrier which allows a pictogram contained in a mail to be correctly displayed when sending a mail via a different telecommunications carrier.

A function to transmit a mail and pictogram data and pictogram data defined by each telecommunications carrier are registered in a data recording medium of a mobile terminal. When sending a mail, the pictogram data of a destination telecommunications carrier contained in the mail is converted based on the pictogram information registered in the data recording medium of the mobile terminal and thereafter the mail is transmitted.