Now you can make calls in your i-phone using the famous Voipraider application!
VoipRaider has developed a MobileVoip application for the iPhone and you can make calls through Wi-Fi and UMTS/3G.
There are three easy ways to get the MobileVoip application in your i-phone:
1) Receive a Free SMS using the below download link,
for this visit http://voipraider.com/en/mobilevoip.php?phonetype=iphone
2) Download on your mobile via mobilevoip.com/Iphone and follow the instructions
3) Download the application to your PC and install it from your desktop.