this is not a tech problem - scam phone calls easily solved by requiring authentication - it's political problem that scam companies keep paying to not get it implemented.
trying to get tech solutions that go agains political will is waist of time - work on political first [on cnn] then come here for [tech] solution
trying to get tech solutions that go agains political will is waist of time - work on political first [on cnn] then come here for [tech] solution