How can vivo mobile phones only intercept strange calls and not ambush spam messages?

I don't know what kind of mobile phone you have. If the mobile phone receives spam messages, it can turn on the harassment interception function.

Funtouch OS 3.2 and subsequent systems: Enter Settings-(System Application Settings)-Telephone-Harassment Interception-Settings;

Funtouch OS 3.0 following systems: enter I housekeeper-harassment interception-upper right corner setting-turn on harassment interception.

Funtouch OS 3.0-3. 1 System: Go to Settings-Phone and add the number to the blacklist;

If you often receive spam messages from the same number, you can add this number to the blacklist, and the mobile phone will intercept the messages sent from this number.