Legal threats and spam blacklists are an endless game of whack-a-mole. I'm not convinced robocalls will ever disappear until the telephone protocol is updated

Legal threats and spam blacklists are an endless game of whack-a-mole. I'm not convinced robocalls will ever disappear until the telephone protocol is updated so a receiver can confidently verify the identity of the sender. Once calls are authenticated, the problem will evaporate practically overnight.