It's hard to teach a dog NOT to do something. Usually I'd recommend teaching an incompatible behavior, but the opposite is being quiet -- again, the absence of doing something. Hard to reinforce.
Can you practice desensitizing her to the doorbell? Have someone ring it and wait until she's quiet to go to the door. It might help to pair it with a command, like "Go to your spot" (put a bath mat or dog bed in a place away from the door, and "Go to your spot" means go sit and stay on that mat or bed). Reward her for being quiet.
It will definitely take some time to train.