Hunan Provincial Communications Administration sends public service messages on epidemic prevention to mobile phones because people can receive first-hand information on epidemic prevention and control and make timely arrangements for their lives and work. Hunan Provincial Communications Administration organized four companies, namely Hunan Mobile, Hunan Telecom, Hunan Unicom and Hunan Tower, to launch the epidemic prevention and control war for the first time in combination with the characteristics of the communications industry. Fight the epidemic, provide quality services and ensure smooth flow.