Intelligent building intercom system practice explain

Video intercom system is the safest and most convenient feature for home portal management. The use of visual intercoms or intercoms to identify visitors in the room can both eliminate nuisances and simplify door-opening procedures. It is an ideal facility for homes.
Features:

1. The visitor dials the indoor extension of the respondent through the cell unit entrance host.
2. Residents can see the visitor's image through the indoor extension. The door machine is equipped with infrared light-emitting diodes to ensure that the image is as clear as at night. The door features automatic backlight compensation to ensure that the visitor is as clear as the picture taken even on a bright background.
3. Extension-free hang-up function, the extension does not hang up does not affect the call.
4. The ring tone is generated by the MCU and it is pleasant to hear.
5. Real-time short-circuit automatic protection, automatic electric lock protection, battery voltage protection.
6. The host enters a low-power state while waiting. Power can be delayed for 48 hours after a power outage. Remote unlocked and reliable. Adopt a reliable one-one-one system, password unlocked.
7. Visitors can talk to the management center through the door host. Household intercom, households in the district can use the center and the door of the host to call between the real household and the household (household intercom type).
8. The door machine can talk with the management machine. Each door machine can call the management machine and talk. The management machine can be unlocked remotely.
9. Emergency broadcasting: In case of emergency, the community management center can make an emergency call to each household in the community through the central management machine. A secondary management machine is set up at each secondary entrance to realize a complete internal communication system of the community.
10. The management center machine can take 248 door machines and 6 subsidiary machines.