Cradle, security system, telephone, and monitoring method

摘要

A cradle (10) according to the present invention includes: a telephone supporting section supporting a mobile telephone (11); a connecting section electrically connecting to the mobile telephone (11); a sensor communications section receiving a report from a sensor (12) sensing a state of a monitored area; and a transmission instructing section providing an instruction signal to the mobile telephone (11) via the connecting section to cause the mobile telephone (11) to transmit a content of the report from the sensor (12) to a management center (13).