A Bluetooth module in an elevator system in the field of elevator intelligent control technologies. The Bluetooth module according to the present invention is arranged substantially corresponding to a mounting hole of a first physical button/second physical button of the elevator system, such that a Bluetooth signal broadcast by the Bluetooth module can be propagated from at least part of the mounting hole to a landing zone/the interior of an elevator car. The first physical button is a physical button arranged on an elevator call panel assembly in the landing zone of the elevator system. The second physical button is a physical button arranged on an elevator call panel assembly of the elevator car of the elevator system. Embodiments can be easily implemented by transforming the existing elevator system and can achieve good coverage of Bluetooth signals in the landing zone and/or the interior of the elevator car.