If you are getting a busy signal this means that there is most likely trouble with your local phone company. Whenever you call that number and you get the name of your long distance company or some other type of message then the trouble is usually with your long distance carrier. I would call your local phone company's repair line and advise them that you are getting a busy signal on the 700 number and they can check the routing for you. This is really a problem if you are getting a fast busy which you didn't indicate.