US Patent 11527139 Information processing system and information processing method

An information processing system includes: a receiver that receives a signal transmitted by a call button including a push button, and a communicator which transmits the signal outside in response to detection of an operation performed on the push button by a user; and an outputter that outputs (i) first notification information, when the signal is received in a first time period within a predetermined period, and (ii) second notification information different from the first notification information, when the signal is received in a second time period within the predetermined period which is different from the first time period.