Method and apparatus for improving voice service quality in mobile wireless communication systems

Mobility Management entity (Mobility Management Entity, MME) of the signal transmitting and receiving method in a mobile communication system according to an embodiment of the present specification. Receiving a request from a mobile station an extended service (Extended Service Request) message; Sending a context request message related to a base station in response to the extended service request message; And the context-related request message comprises the step, and for receiving a reply message for the context-related request message from the base station is characterized by including information used for maintaining the RRC (Radio Resource Control) connection of the base station. According to an embodiment of the present disclosure reduce the voice call setting time in a mobile communication system, it is possible to provide a method and apparatus that can reduce the information exchange process when receiving a particular service during a move to a different service.