The first rule of avoiding scam calls is to never answer unknown numbers, and even some known ones.
Curious? Bored? Worried it’s an emergency? Wait the extra minute it takes for the call to go to voice mail, then decide if it’s legitimate.
You'll probably be glad to know that the current administration of the FCC (far past Pai) voted to officially restore net neutrality, and if allowed to work will probably work at fixing this problem too.