[WhyEmail]

Yeah, but they can at least do the following things:

- Don't connect calls coming from numbers they own that they have not assigned

- Don't connect calls from a number to itself (my wife recently received a phone call from "herself". Then she received 20 more phone calls from irate people sure that she spammed them)

- Don't connect calls where the calling number is coming from an invalid area code or LATA

- Don't connect calls where the calling number is a string of only digits. There are no people or businesses with this type of name, most likely.

This would solve between 10-50% of the spam calls I get, I'm pretty sure.