How does vivoX7 intercept a person's harassing text messages?

Vivo X7 mobile phone needs to intercept the short messages and phone calls of contacts, as long as the contacts are blacklisted. Enter a mobile phone contact-long press a number-more-join the blacklist.

Specific operation steps:

1, the standby desktop becomes a contact.

2. Long press the contact person who needs to be blacklisted.

Step 3: bigger

4. Select "Join Blacklist".

Tips: After the contact is blacklisted, if the contact calls the mobile phone, there will be a prompt that "the mobile phone is turned off" or "it is not convenient to answer".