It is a training process you must go thru to get your dog to stop barking ON COMMAND. They will still bark when you are not there to warn off intruders, and will keep barking if YOU let them. Instructions are fairly long and AB doesn't let you post long answers, but if you go to
http://orangedog.forumup.com/index.php?mforum= orangedog
and post this question it can be answered. Depending on the breed of dog and age and why it's barking are all clues to why and how to stop it. The more detailed info you can supply the better.