Iphone13 doesn't have voice mail, but it shows unread messages.

iphone13 doesn't open voice messages but displays unread messages because spam messages are blocked by security software. Users can access the security software to check the blocked spam messages. According to the query related information, iphone13 didn't open voice messages but displayed unread messages because spam messages were intercepted by security software. Users can enter the security software to check the intercepted spam messages. Information is classified into spam messages, and iphone13 has a trash can function, which can be queried.