I often won't answer my cell unless I know the number. Figure if they need me they can leave a message and I'll call back.
As I understand it the phone companies could stop a lot of this stuff, but don't b/c they make money on it, esp. calls being spoofed coming in from abroad. That's just "what I've heard" on the internet, I haven't really investigated, but I don't get how they can't eliminate a lot of these issues.
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