What's wrong with vivo calling without displaying its name?

If it means that the caller ID of the mobile phone does not display the name or phone number, you can use the following methods to troubleshoot:

1. If only a few incoming calls are not displayed, it may be that the other party used VoIP or third-party software to dial;

2. The other party has started the business of hiding numbers;

3. The phone came from abroad and could not be successfully identified;

4. It may be that the caller ID package has not been opened, so it is recommended to consult the operator to which the SIM card belongs.

If you still have more doubts, you can enter vivo official website-My-Online Customer Service-Enter labor and consult online customer service feedback.