I wondered about that.
I would think that they would be recording the phone number along with the vote. I have a private phone number so I don’t know how that would show up on their caller ID.
‘________show up on their caller ID.’
Our phone number is *blocked* - has been for years - unless we care to show it (esp to our daughters). We unblock by hitting *82.
And once in a while, when calling someone using our blocked number, the message at the other end is that THEY do not accept any blocked calls! So we hang up and start over, by unblocking.
I believe there’s a number you can hit when you want to BLOCK your number.
However, don’t believe when ‘dialing’ an 800 number and it’s equivalents, that one’s number is blocked.