Job Recruitment Website - Property management - Is there a charge for the maintenance of the visual intercom system for residential access control?

Is there a charge for the maintenance of the visual intercom system for residential access control?

If the product is over-insured,

Public parts, such as the main engine on the unit door at the entrance of the corridor, the main engine power supply, the floor distributor in the shaft,

This is property expenditure.

Personal parts, such as extensions, are the ones hanging on the wall at home.

Is to spend your own money.