You can find the wireless nurse call system in all big hospitals. These devices serve multiple purposes. In hospital rooms, patients have access to a remote device that he can use to send a signal and call the nurse in case of any emergency. The wireless systems also connect the doctors to the nurses who can call or alert the nurse during their rounds. In most hospitals, it is not possible to keep the tab on nurses at all times as these nurses tend to many doctors and patients. Without a call system, it becomes impossible to trace a nurse if she is on a round of hospitals or not assigned to a particular doctor who requires the nurse services — the whole system runs on wireless with remote signal generation. All hospitals make use of these devices as it is an easy way of reaching to the nurses.