For some reason, I had the impression you could not call U.S. toll free (800) numbers from outside the U.S. That's a problem to the extent that the toll free number is often the only one shown on commercial web sites. Had the issue arise today, and before I started wondering around the internet to find a "regular number", I tried the 800 number. As expected, I got a recorded message in Thai. What I did not expect was that I then got a recorded message in English saying that if I let the call go through, it would be with a regular toll. I was happy to let it go through as a toll call.