One of the disadvantages of AT&T offer is that international calls are not cheap, it already requires an additional monthly fees in addition to 23 cents per minute. Jajah came here to provide the first web-based VOIP solution for iPhone for the price of 3 cents per minute, compared to the 23 cents of AT&T.

iPhone Link: http://mobile.jajah.com/
Website: http://www.freeyouriphone.com/