Why doesn't my mobile phone have caller ID?

1, because your mobile phone has no caller ID.

2. The calling number is disabled because you dial your number.

3. Caller ID is used for incoming calls. If there is no caller ID, someone will not display the number when calling, which is different from the number displayed by SMS.

4. If there is no caller ID, you can ask the identity of the other party with your mouth. If there is no sender's number in the text message, you know who sent it to you. How can you reply to her?

You can't have more than two phone numbers on a business card.

6. Two different business cards cannot have the same number.

7. The business card in the SIM card cannot be duplicated with the mobile phone card folder, that is, a business card cannot be in the SIM card and the mobile phone card folder at the same time.

8. If the number is prefixed with +86, delete 86.

9. Solution: Not all business cards have this problem. It is recommended to delete the business cards that are not displayed on the SIM card and only exist on the mobile phone.

10, the ultimate method, put all the numbers in the mobile phone business card, and then delete all the SIM card business cards.

1 1. Check the SIM card name card and enter the address book-Options -SIM card name card -SIM phone book.

12, there was a call reminder, and it was not in the service area or it was not turned off when it was turned off. Maybe your cell phone suddenly lost its signal, and then you got a signal yourself, and you didn't notice it. For reference only.