I don't know why all the messages I received before showed the sender's name, but now only the number is displayed! Where can I set this up?

Hello, landlord, there are several solutions to the following problems: 1. Try it before the 86th. 2. See if there are two numbers stored in the same name, and there is no phenomenon of duplicate names. There is an unnamed phone number at the end of the phone book, just delete it. The business card book shows that you should choose a mobile phone instead of a SiM card. 5. Delete the third-party software in the communication. 6. You can't have the same number under two different business cards. 7. The business cards in the SIM card cannot be duplicated in the calling card book, that is, a business card cannot be in both the SIM card and the mobile phone card. The ultimate method: 1. Save all numbers. 2. Soft phone, enter *#7370# 3 standby mode. Upgrade your telephone system.