You hang up to avoid a Belgacom charge, and the computer calls you back, providing you with a stateside dial tone so you can dial as if you were in the United States.
You can trick the phones into thinking you're calling from the U.S.
mnli hypothesis: You can trick the phones into thinking you're calling from the U.S. premise: You hang up to avoid a Belgacom charge, and the computer calls you back, providing you with a stateside dial tone so you can dial as if you were in the United States.