May I ask the legal profession about the ownership of the intercom system (intercom doorbell) in the community?

Ownership should belong to the owner, and the property only has the right to manage. During the warranty period, the system failure will be repaired free of charge by the property coordination supplier or engineer. After the warranty period, if there is a problem with the extension of the household, the household will pay for it, and the property is responsible for finding suppliers or engineers to repair it. If the common parts of the system fail, such as portal crane, power supply, intermediate equipment, etc., the maintenance cost will be shared equally by the whole unit. If it is man-made damage, the property will be responsible for maintenance. This involves property management. It should be noted that the doors, locks and door closers in the building intercom system, whether damaged by nature or man-made, are maintained by the property, which is also a problem of inadequate management. As for the real estate developer, after handing over the house, he has nothing. Originally, he was responsible for the warranty period, but it was generally handed over to the property, and it is also possible for the owner to find a property.