Manually: if you don’t get a lot of unwanted calls, you can block calls one at a time. If you want to take this a step further, the Verizon app will also try to block suspicious calls and send them to voicemail. For Android devices, you open the Verizon Caller Name ID app, tap “Block management,” tap “Spam filter”, then toggle the feature on and select the risk level. Go to “Caller ID and spam protection” in Call Settings, then turn on “Caller ID and spam protection.” Note that is not made available by all carriers. And Google offers caller ID & spam protection for Android.

Source: Fox News December 16, 2018 12:04 UTC