Calling USA straight from your Mobile or landline is very expensive. If you want to make free calls to USA all you have to do is download our app. You don’t need to buy credit, you don’t need to register or use debit or credit card in any way. We have developed a smart app called Call USA Free. The App lets smart phone users call USA for free by utilising their phone’s network operator's inclusive minutes.
Using Call USA Free is very simple. Just download and launch the app, then just dial the USA number using the App’s dial pad. Your phone will then call a standard 03 number that we connect to the USA phone number which you have dialled. The call will be free for you as you will be using your bundled minutes.
So to call USA FREE from your mobile phone right now without having to get a new SIM or open up an account or use applications such as skype, just download our app and you will be on your way to making free calls to USA. Save a fortune on your calls and call anyone on the other side of the pond for FREE, anytime, from anywhere.
If you don't have any minutes left (or are a PAYG customer) it will be charged at the same rate as a standard UK geographic number, such as a number in London or Manchester
Please see here http://consumers.ofcom.org.uk/2009/09/what-are-03-numbers/ for more information on 03 numbers.