Verizon Customer Support was asked to block spoofed calls. AIl they have been able to offer is a service that compares the incoming call (which by the way, Verizon, is a spoofed telephone number) with a database of known spammers. Obviously that is a useless service against spoofed numbers.
Can this really be so difficult to do? Over 95% of calls that come to me are spoofed telephone numbers. Each call records an empty message, which I then need to delete.
I rarely even use my land line except to call out, but I still need it for the rare occasion that someone only has my landline number.