PURPOSE: To provide the portable multi-function telephone system provided with transmission reception function of character communication, picture communication and data communication in addition to a voice communication function regardless of its small size.

CONSTITUTION: The telephone set is provided with a main body section having an antenna 15 and a cover fitted to an end of a 1st outer face of the main body section with a hinge in an open/close way and having an input section, the main body has a display section at a recessed part in the middle of the 1st outer side, and the inside of the main body is provided with a transmission reception section 18, a handset section 19 connecting to the transmission reception section, a memory section 25 storing a program, a central processing unit 22, a memory card reader 29, a MODEM 21, an electrical erasurable program ROM 26 and a memory card loading port.