There are too many spam callers out there and there is no straight forward way to stop them. If you do not want to use application like TrueCaller to block spam, you can use this guide to manually add number to blacklist so that you do not get a call again from those numbers.
Please go to this page if you are using new Vivo phone with FunTouch OS 9 : List of helpful call settings in your Vivo phone.
To add a phone number to blacklist:
- Go to [Settings]>Phone>Rejection>Block blacklist numbers>Add.
- From this page, you can add numbers to blacklist.
- To remove a number from blacklist you can come to same page and click on [Edit}.
- Select a number and remove from blacklist using Delete button.
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