To improve the convenience of a visitor desiring to confirm the contents of orders from residents in a multiple dwelling house.

Order taking buttons 23a, 23b, 23c respectively provided to living room sets 2a, 2b, etc., depending on order takers are depressed by a resident in a house to register a plurality of the order takers, for storing a setting ID that is preset to each order taker and to store a living room number of a house, which order takers visit to a master set 3 according to each order taker. A visited order taker has only to depress an entry device 10 of a multiple entrance set 1 and to enter an ID number assigned to itself so as to display and output living room set numbers of a plurality of houses, to which the order taker is registered corresponding to its own ID number stored in the master set 3 on a display section 11 of the multiple entrance set 1 all at once.