PURPOSE: To improve the convenience of use by the user side remarkably by serving the information with an optimum medium to each equipment being component of a terminal equipment.

CONSTITUTION: When a dial signal, comes from any of a multi-functional telephone set 4, a personal computer 5, a facsimile equipment 6, a CAPTAIN exclusive terminal equipment 7 being components of a terminal equipment 2, a communication board 8 of a multimedia server 3 recognizes the type of the equipment of the terminal equipment 2 based on a telephone number service of a call destination fed from a public line 1. Any of a voice reply recognition function section 9 or a personal computer communication function section 10, a facsimile equipment store and forward exchange function 11 and a CAPTAIN communication function section 12 is operated based on the result of recognition to serve information with a medium in response to the equipment type.