I agree with you WHOLEHEARTEDLY! I am in sales and need to answer my phone. I got calls all the time that are from the city or state I am in only to find out they are scammers or telemarketers. How is this allowable?!
When I get calls from numbers that I don't know, I don't answer them. If their call is important they will leave a message. It also gives me time to check the number, and then I put it on my phone reject list.