An apparatus and a method for determining a state of a counterpart without executing a separate program executed in order to determine a current state of the counterpart in a communication apparatus are provided. The apparatus includes a state information server and a communication apparatus. When receiving state information, the state information server provides the received state information to a user who has registered the communication apparatus that has provided the state information. When receiving state information from the state information server, the communication apparatus outputs the user's state information corresponding to the state information.