The mobile phone in Dongguan, Guangdong called me and hung up when it rang. What does he want?

It is likely to be harassing calls or fraudulent calls. This kind of phone usually hangs up after ringing, asking you to call back or reply a message, and then charging a high communication fee or cheating you. It is suggested that in this case, do not call back or reply to the information, and directly blacklist the number or report it to the relevant institutions.