Are They Allowed To Call Me At Work?

Recently I started getting collections calls at work. I am not sure how they even got my work number since I know I didn’t give it to them, but maybe my daughter gave it to them not realizing who they were. She is just a little kid so I am sure they could have tricked her into doing it. I have asked them not to call me at work since I am not supposed to get personal calls, but they keep doing it. Isn’t this cell phone caller id block, and isn’t it illegal for them to do this? How can I get them to stop?