Elevator wireless five party intercom - Elevator IoT one click rescue intercom system is a new generation of elevator wireless communication product based on IoT technology. Using an IoT communication gateway to access the existing analog intercom system of the elevator, call and communicate with the monitoring center host through 4G or wired network without distance restrictions or wiring; Compatible with existing four-way communication, plug and play, low upgrade and maintenance costs, providing customers with an efficient and fast elevator five party intercom solution.