I have a Microsoft Lumia 650. I need to block calls from "unknown". How do I do that? I am able to block calls that come from a specific number, but not those marked as "unknown."
Maybe the Windows Store has an app for caller id that can do what Hiya app does for Android and iOS. Or a similar app .
Unknown calls are going to be tricky but we have some pretty helpful information regarding blocking all types of unwanted calls here https://support.t-mobile.com/docs/DOC-23906. Hope this helps.
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