Long distance can be cheap. No, not the usual through-the-phone-company service. Long distance can be as close as your Internet connection.
VOIP, or Voice Over Internet Protocal, technology is such that the calls are quite good and quite cheap. One company, Vonage, charges about $25 a month for unlimited calls. The nice thing about it is that you can be assigned a phone number in any U.S. area code you like.
So, if you are planning on having your own company while working abroad, business folks won't even need to know that you are not in the U.S. They dial a number for Fresno, California, and it gets them you in your overseas abode. How cool is that?