How to set up an empty number when calling from an unknown number?

How to set the number to be empty when an unknown number calls?

In our daily lives, we often receive calls from unknown numbers, some of which are even harassing calls. In order to avoid these harassments, we can set the number to be empty when calling from unknown numbers. Let’s introduce how to set it up.

Step one: Download anti-harassment software

Anti-harassment software is a tool that can help us filter harassing calls. It can filter based on blacklist, whitelist and other methods. We can download a reputable and highly rated anti-harassment software from the app store, such as "360 Security Guard", "Cheetah Cleanup Master", etc.

Step 2: Add a blacklist

In the anti-harassment software, we can add a blacklist and add some harassing phone numbers to it. When these numbers come in, the software will automatically block them, making them unable to be connected. When adding a blacklist, we can enter the number manually or select it from the address book.

Step 3: Set up unknown number blocking

In addition to adding a blacklist, we can also set up unfamiliar number blocking. In the anti-harassment software, we can enable blocking of unknown numbers, so that all numbers that are not in the address book will be blocked. Of course, if we need to answer calls from unknown numbers, we can also turn off the interception.

The above is how to set the number to be empty when calls from unfamiliar numbers are made. By downloading anti-harassment software, adding blacklists and setting up unknown number blocking, we can effectively avoid the interference of harassing calls.