Does the property service have the obligation to answer the phone at night?

Have an obligation. The customer service of the property company is mainly responsible for receiving some customers or talking about business. If it has been announced to the owner that the service has a 24-hour commitment, it should be obliged to answer, and there is no forced communication and negotiation. There will be night customer service in the property, and the person who answers the phone will record the matter first and hand it over to the relevant department personnel for handling the next day.