It is too easy to fake the originating number. The actual line number where the phone call comes from is probably in the protocol already. A lot could be solved

It is too easy to fake the originating number. The actual line number where the phone call comes from is probably in the protocol already. A lot could be solved if the phones started to display that as well. Even better, allow the users to block on both official and actual numbers. Could probably be done without involving the telcos, only a change in the handset software.