The medical call system consists of a host, hallway display screen, bedside extension, emergency call, etc. The host and patient list are combined into one, equipped with a perpetual calendar, a wake-up indicator light, and a bed digital display window. The shell is ultra-thin and the design is particularly exquisite, which can be hung on the wall or placed on the desktop at will; The extension adopts a new encoding circuit number, and the bed number can be changed by simply replacing the encoding chip. The shell adopts a fully plastic buckle design, suitable for any form of installation matching; The extension cable is connected by an internal pressure cable, achieving a continuous connection within the room. Safer and more convenient to use, install, and maintain.