Stopping barking

[lkcheertex]

I know this has probably been asked before so please forgive me but I am hoping to get some fresh eyes on it. We are having a real problem with Bella barking at the door. If the doorbell rings she goes nuts. I don't mind that, I want people to know I have a dog. But I can't get her to stop! She will listen to my command to settle (go to her bed and lay down) but then she hops right back up. Any suggestions are appreciated