楼门平时总处于闭锁状态，避免非本楼人员在未经允许的情况下进入楼内，本楼内的住户可以用钥匙自由的出入大楼。当有客人来访时，客人需在楼门外的对讲主机键盘上按出欲访住户的房间号，呼叫欲访住户的对讲分机。被访住户的主人通过对讲设备与来访者进行双向通话或可视通话，通过来访者的声音或图像确认来访者的身份。确认可以允许来访者进入后，住户的主人利用对讲分机上的开锁按键，控制大楼入口门上的电控门锁打开，来访客人方可进入楼内。来访客人进入楼后，楼门自动闭锁。
The building doors are always in a locked state, so that people who are not in the building can not enter the building without permission. Residents in the building can use keys to enter and exit the building freely. When visitors come, they need to press the room number on the keyboard of the intercom host outside the building to call the intercom extension. The host of the household interviewed confirms the identity of the visitor through the voice or image of the visitor through two-way or visual communication with the visitor through the dialog equipment. After confirming that visitors can be allowed to enter, the owner of the household controls the opening of the electronic door lock on the entrance door of the building by using the unlock button on the walkie-talkie extension, so that visitors can enter the building. When visitors enter the building, the door is automatically closed.
住宅小区物业管理的安全保卫部门通过小区安全对讲管理主机,可以对小区内各住宅楼安全对讲系统的工作情况进行监视。如有住宅楼入口门被非法打开、安全对讲主机或线路出现故障，小区安全对讲管理主机会发出报警信号、显示出报警的内容及地点。小区物业管理部门与住户或住户与住户之间可以用该系统相互进行通话。如物业部门通知住户交各种费用、住户通知物业管理部门对住宅设施进行维修、住户在紧急情况下向小区的管理人员或邻里报警求救等。
The Security Department of residential property management can monitor the work of the security intercom system of residential buildings in the residential area through the main computer of the security intercom management of the residential area. If the entrance door of a residential building is illegally opened and the main safety intercom machine or line fails, the main safety intercom management machine in the residential area will send out an alarm signal, showing the content and location of the alarm. Residential property management departments and households or between households and households can use the system to communicate with each other. For example, the property department notifies the household to pay various fees, the household notifies the property management department to repair the residential facilities, and the household alarms the management of the community or the neighbourhood for help in case of emergency.