To easily and surely realize meeting by appointment by allowing terminal equipments appointing meeting to make direct communication after confirming the presence in a service area of a same base station.

An appointment meeting opposite terminal equipment B receiving a meeting notice sends a meeting end notice including at least meeting information to a base station 3 and makes direct communication with a terminal equipment A registering the meeting, and the base station 3 receiving the meeting end notice deletes the meeting information stored in a meeting information storage means 5. Then after terminal equipments requiring meeting confirm it that they are in existence in a service area of a same base station, they make direct communication.