Method for controlling service in radio communication system

A method of receiving and sending a signal in a radio communication system according to an embodiment includes: sending a circuit switched voice network (CS) service request to a gateway mobile switching center (GMSC) for receiving and sending data to another terminal; and receiving a call rejection response to the service request from the GMSC, wherein the call rejection response is transmitted from one entity in a core network of said other terminal. According to an embodiment, it is possible to provide a service without increasing a network load even if a sending terminal requests that a receiving terminal using only a PS service provide the CS service.