International Callback (bestcallback.net) which works by placing your call through a third-party country, taking an indirect route for your call and getting you the lowest prices international tariffs will afford. 

bestcallback.net works by routing all your international calls through the United States, and strategically placed worldwide  These Callback companies make the LOWER RATES of the U.S. phone system available directly to your phone. And since all your calls are handled by state-of-the-art computers, all of its special features and advanced abilities are also at your disposal.

So, after you sign up with our company, we will assign you a special unlisted US phone number that you will call and then hang up after one ring. Since you hang up BEFORE a connecting answer, there is no charge for the call. However, our computer has been signaled that you called and it will IMMEDIATELY call you back. At this point you simply answer the phone and dial the number you wish to call. That's all there is to it.

bestcallback.net do not have multiple levels of menus or long instructions to listen to. Lowering dramatically the cost of International long distance calls is very easy.  

Go to the introduction page of this wonderful service.