The ward call system consists of a call host installed at the ward nurse station and call extensions and corridor display screens respectively set at the ward bedside and ward bathroom. Once someone presses the call button at the ward bedside or bathroom, the nurse station host will emit an audible and visual alarm signal. At the same time, the corridor display screen synchronously displays the called bed number, and the nurse can immediately rush to the ward to handle emergency situations. The call extension in the bathroom needs to have waterproof function, which is very important. In addition, for the convenience of ward staff, the treatment room can be equipped with communication and display devices to keep abreast of the situation during treatment.

The ward call system is an auxiliary facility designed to improve hospital management and service levels. The system requires 24-hour continuous operation, low failure rate, and stable performance.

The demand for hospitals with technological development is also advancing. Basically, township hospitals are still using hardware based call systems, with low scalability and intelligence of functions. Most technologically advanced hospitals are using multimedia call systems, which are connected to the hospital's HIS network and displayed on color screens. They can display patients' medical information, cost information, and expand functions to analyze hospital hospitalization status, medical staff work efficiency, and multiple diseases. Through this system, a digital hospital can be built!