An artificial intelligence (AI) system configured to simulate functions of a human brain, such as recognition, determination, etc., by using a machine learning algorithm, such as deep learning, etc., and an application thereof. The AI system includes a method performed by a device to transmit and receive audio data to and from another device includes obtaining a voice input that is input by a first user of the device, obtaining recognition information indicating a meaning of the obtained voice input, transmitting the obtained voice input to the other device, determining whether an abnormal situation occurs, in which a second user of the other device does not understand the transmitted voice input, and transmitting the obtained recognition information to the other device, based on a result of the determination.