Method and device for improving voice call service quality

摘要: The present disclosure relates to a communication technique for convergence of an IoT technology and 5G system supporting higher data transmission rates after 4G system, therefor. can be applied intelligent service on the basis IoT-related (e.g., smart home, building, city, car or connected car, healthcare, digital education, retail business, security, safety-related service). A method transmitting receiving signal by terminal in mobile based embodiment specification comprises steps of: transmitting, server, first message including at least one identifier location information terminal; receiving, from second list possible determined message; access token using services included list. Further, specification, various may effectively provided terminal.