To solve a problem that some nurse call equipment have both of an operation means for calling a nurse and an operation means for restoring, however it becomes difficult to have both the means due to the increased need for the miniaturization of the nurse call equipment.

A nurse call equipment is provided which uses one push button which occupies the largest area. In order to call and restore each time of pushing the push button, a master set is provided with a warning means which detects the on/off of a current flowing through a slave set etc. and warns or stops warning, and the slave set etc. is provided with one switch and an inversion means where an on/off-state of the current flowing through the slave set etc. is inverted each time the switch is operated.