To recognize the caller of a communication destination by transmitting user setting information stored in a storage card from a public telephone on a transmission side to a telephone on a reception side and displaying the user setting.

In a format 2 written in the storage card 1, accounting information, a card ID and the user setting information are stored. Then, upon reading the storage card 1 by using a card public telephone set, the card ID and the user setting information written in the storage card 1 are reported through a public network to a telephone set for a household with a display function. In the telephone set for the household with the display function, by displaying the user setting information at a display part and confirming it before performing communication, who is a call origin is confirmed. Also, by deciding the user setting information at the call termination and not terminating a call except for specified user setting information, the call termination from an outsider is obstructed.