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The phone companies ARE able to stop the caller ID spoofing with a simple notch filter placed at the right point on the line, or packet filter on the right plac
by dec0dedab0de 8y ago
The phone companies ARE able to stop the caller ID spoofing with a simple notch filter placed at the right point on the line, or packet filter on the right place on the firewall.
T-mobile already does, along with some other magic logic they have stopped almost all of the spam calls from reaching me. ...Occasionally they block my mom for a day or two, but it's worth it.
- markovbot 8y agoI have a t-mobile line and a Google voice number, I don't give out the T-Mobile number so 100% of legitimate calls come through Google Voice, but 100% of spam calls come through T-Mobile. Also I'm not sure when you're saying they added this magical filtering but I've tested spoofing calls to myself and other T-Mobile phones within the last few months and it works fine.