With VOIP phone service, there's no difference between local and long distance calling. Virtually all VOIP providers offer free calls anywhere in the US, either in a package of pre-paid minutes or an unlimited package. Shop around for the best deal you can find. Remember, most providers also offer free local and long-distance calling within their own network, too. So if you can convince people you call regularly to join the same VOIP phone service as you, you can save even more.