To provide a mobile communications terminal device that can identify an originator in a unit of group or a discriminating ringing by depending on the kind of an incoming identification tone without regard to a display, and acquire information designating the originator in accordance with an external specification.In a mobile communications terminal device 1, if there is any matched data in a retrieval from a telephone directory, the call is informed with an incoming identification tone specified by the kind of a call incoming and a telephone directory of a memory 17. If a switch is pressed on an operation section 11, a ringing of incoming identification tone from a voice output section 13 is stopped, and the voice information converted from a character string registered in the telephone directory of the memory 17 is output from the voice output section 13.