The elevator three-party intercom system is a communication system that mainly connects the management center host, the elevator room extension and the car extension.
1. Management center host: used to receive and process calls from the elevator, and communicate with the car and machine room extensions.
2. Elevator machine room extension: used to communicate with the management center host and car extension, facilitating elevator maintenance personnel to troubleshoot and repair.
3. Car extension: convenient for passengers to contact the management center and machine room in case of emergency.
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