Access control problem

I understood your needs and met them myself.

The maintenance of a community, a buddy, is very tossing. At home, the current system is the visual host and extension of Li Lin coding, which is exactly what you need. You bought a set of visual doorbells with miscellaneous brands. You must connect your doorbell host to Li Lin's visual extension, or connect Li Lin's host to his extension instead of Li Lin's visual extension.

I went to the scene to see, what, just two sets of things. I explained for ten minutes and insisted that he install it independently, that is, put two visual extensions indoors, one for building intercom and one for visual doorbell.

Not the same brand, the same model, and must not be mixed.

It's not over yet. Then the property called me in the afternoon and said that someone had reacted and a host was broken. I went to have a look. It was the company, and the mainframe was broken. Press the account number, you can press "beep, beep", but you can't call. It breaks my heart to think of it. When I went up, I saw the property manager quarreling with the buddy, and the buddy admitted it.

After I left, people answered themselves. Tear down Li Lin's extension and connect it all to your own extension. Electricity burning. Acquire, dismantle and repair the host.

My solution for you is:

Look at the brand and model, and contact the brand manufacturer directly. Ask them if they have a corresponding villa host, that is, a one-button host with a camera. Can be directly connected, coding needs to add a distributor, households need to add a switch. Just buy it and connect it.