The audio door telephone controller device is connected to the telephone extension at the door. When the door needs to be opened, the visitor dials the telephone in the room on the door operator. After confirming the identity of the visitor through the telephone, the internal staff can enter the password on the telephone to open the door remotely.

The audio door telephone controller device solves the problem of security control for residents and visitors entering the door. Its biggest feature is to integrate the access control system with the telephone network, and use the ordinary household telephone or mobile phone as the visitor identification terminal.

Audio door telephone When a visitor arrives, whether the resident is at home, in the office or on business trip, the door can be opened by remote control through the telephone or mobile phone. The audio door telephone device is the product upgrade of the traditional intercom access control system. It does not need wiring and is easy to install and maintain. It can use both local telephone lines and internal extension lines.

Visitors can easily call and talk to the residents through the access control telephone in front of the unit door downstairs. The residents can control the opening and closing of the unit door indoors. The host computer of the community can receive the alarm signal of the residents at any time and send it to the indoor telephone to notify the users. The system not only enhances the security work of the high-rise residential building, but also greatly facilitates the residents and reduces many unnecessary trouble of going up and down the stairs.